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-rw-r--r--drivers/net/ethernet/marvell/Kconfig143
-rw-r--r--drivers/net/ethernet/marvell/Makefile11
-rw-r--r--drivers/net/ethernet/marvell/mv643xx_eth.c3259
-rw-r--r--drivers/net/ethernet/marvell/mvmdio.c301
-rw-r--r--drivers/net/ethernet/marvell/mvneta.c3236
-rw-r--r--drivers/net/ethernet/marvell/mvpp2.c6435
-rw-r--r--drivers/net/ethernet/marvell/pxa168_eth.c1630
-rw-r--r--drivers/net/ethernet/marvell/skge.c4226
-rw-r--r--drivers/net/ethernet/marvell/skge.h2584
-rw-r--r--drivers/net/ethernet/marvell/sky2.c5245
-rw-r--r--drivers/net/ethernet/marvell/sky2.h2432
11 files changed, 29502 insertions, 0 deletions
diff --git a/drivers/net/ethernet/marvell/Kconfig b/drivers/net/ethernet/marvell/Kconfig
new file mode 100644
index 000000000..d323a695d
--- /dev/null
+++ b/drivers/net/ethernet/marvell/Kconfig
@@ -0,0 +1,143 @@
+#
+# Marvell device configuration
+#
+
+config NET_VENDOR_MARVELL
+ bool "Marvell devices"
+ default y
+ depends on PCI || CPU_PXA168 || MV64X60 || PPC32 || PLAT_ORION || INET
+ ---help---
+ If you have a network (Ethernet) card belonging to this class, say Y
+ and read the Ethernet-HOWTO, available from
+ <http://www.tldp.org/docs.html#howto>.
+
+ Note that the answer to this question doesn't directly affect the
+ kernel: saying N will just cause the configurator to skip all
+ the questions about Marvell devices. If you say Y, you will be
+ asked for your specific card in the following questions.
+
+if NET_VENDOR_MARVELL
+
+config MV643XX_ETH
+ tristate "Marvell Discovery (643XX) and Orion ethernet support"
+ depends on (MV64X60 || PPC32 || PLAT_ORION) && INET
+ select PHYLIB
+ select MVMDIO
+ ---help---
+ This driver supports the gigabit ethernet MACs in the
+ Marvell Discovery PPC/MIPS chipset family (MV643XX) and
+ in the Marvell Orion ARM SoC family.
+
+ Some boards that use the Discovery chipset are the Momenco
+ Ocelot C and Jaguar ATX and Pegasos II.
+
+config MVMDIO
+ tristate "Marvell MDIO interface support"
+ depends on HAS_IOMEM
+ select PHYLIB
+ ---help---
+ This driver supports the MDIO interface found in the network
+ interface units of the Marvell EBU SoCs (Kirkwood, Orion5x,
+ Dove, Armada 370 and Armada XP).
+
+ This driver is used by the MV643XX_ETH and MVNETA drivers.
+
+config MVNETA
+ tristate "Marvell Armada 370/38x/XP network interface support"
+ depends on PLAT_ORION
+ select MVMDIO
+ ---help---
+ This driver supports the network interface units in the
+ Marvell ARMADA XP, ARMADA 370 and ARMADA 38x SoC family.
+
+ Note that this driver is distinct from the mv643xx_eth
+ driver, which should be used for the older Marvell SoCs
+ (Dove, Orion, Discovery, Kirkwood).
+
+config MVPP2
+ tristate "Marvell Armada 375 network interface support"
+ depends on MACH_ARMADA_375
+ select MVMDIO
+ ---help---
+ This driver supports the network interface units in the
+ Marvell ARMADA 375 SoC.
+
+config PXA168_ETH
+ tristate "Marvell pxa168 ethernet support"
+ depends on HAS_IOMEM && HAS_DMA
+ depends on CPU_PXA168 || ARCH_BERLIN || COMPILE_TEST
+ select PHYLIB
+ ---help---
+ This driver supports the pxa168 Ethernet ports.
+
+ To compile this driver as a module, choose M here. The module
+ will be called pxa168_eth.
+
+config SKGE
+ tristate "Marvell Yukon Gigabit Ethernet support"
+ depends on PCI
+ select CRC32
+ ---help---
+ This driver support the Marvell Yukon or SysKonnect SK-98xx/SK-95xx
+ and related Gigabit Ethernet adapters. It is a new smaller driver
+ with better performance and more complete ethtool support.
+
+ It does not support the link failover and network management
+ features that "portable" vendor supplied sk98lin driver does.
+
+ This driver supports adapters based on the original Yukon chipset:
+ Marvell 88E8001, Belkin F5D5005, CNet GigaCard, DLink DGE-530T,
+ Linksys EG1032/EG1064, 3Com 3C940/3C940B, SysKonnect SK-9871/9872.
+
+ It does not support the newer Yukon2 chipset: a separate driver,
+ sky2, is provided for these adapters.
+
+ To compile this driver as a module, choose M here: the module
+ will be called skge. This is recommended.
+
+config SKGE_DEBUG
+ bool "Debugging interface"
+ depends on SKGE && DEBUG_FS
+ ---help---
+ This option adds the ability to dump driver state for debugging.
+ The file /sys/kernel/debug/skge/ethX displays the state of the internal
+ transmit and receive rings.
+
+ If unsure, say N.
+
+config SKGE_GENESIS
+ bool "Support for older SysKonnect Genesis boards"
+ depends on SKGE
+ ---help---
+ This enables support for the older and uncommon SysKonnect Genesis
+ chips, which support MII via an external transceiver, instead of
+ an internal one. Disabling this option will save some memory
+ by making code smaller. If unsure say Y.
+
+config SKY2
+ tristate "Marvell Yukon 2 support"
+ depends on PCI
+ select CRC32
+ ---help---
+ This driver supports Gigabit Ethernet adapters based on the
+ Marvell Yukon 2 chipset:
+ Marvell 88E8021/88E8022/88E8035/88E8036/88E8038/88E8050/88E8052/
+ 88E8053/88E8055/88E8061/88E8062, SysKonnect SK-9E21D/SK-9S21
+
+ There is companion driver for the older Marvell Yukon and
+ SysKonnect Genesis based adapters: skge.
+
+ To compile this driver as a module, choose M here: the module
+ will be called sky2. This is recommended.
+
+config SKY2_DEBUG
+ bool "Debugging interface"
+ depends on SKY2 && DEBUG_FS
+ ---help---
+ This option adds the ability to dump driver state for debugging.
+ The file /sys/kernel/debug/sky2/ethX displays the state of the internal
+ transmit and receive rings.
+
+ If unsure, say N.
+
+endif # NET_VENDOR_MARVELL
diff --git a/drivers/net/ethernet/marvell/Makefile b/drivers/net/ethernet/marvell/Makefile
new file mode 100644
index 000000000..f6425bd28
--- /dev/null
+++ b/drivers/net/ethernet/marvell/Makefile
@@ -0,0 +1,11 @@
+#
+# Makefile for the Marvell device drivers.
+#
+
+obj-$(CONFIG_MVMDIO) += mvmdio.o
+obj-$(CONFIG_MV643XX_ETH) += mv643xx_eth.o
+obj-$(CONFIG_MVNETA) += mvneta.o
+obj-$(CONFIG_MVPP2) += mvpp2.o
+obj-$(CONFIG_PXA168_ETH) += pxa168_eth.o
+obj-$(CONFIG_SKGE) += skge.o
+obj-$(CONFIG_SKY2) += sky2.o
diff --git a/drivers/net/ethernet/marvell/mv643xx_eth.c b/drivers/net/ethernet/marvell/mv643xx_eth.c
new file mode 100644
index 000000000..1c75829eb
--- /dev/null
+++ b/drivers/net/ethernet/marvell/mv643xx_eth.c
@@ -0,0 +1,3259 @@
+/*
+ * Driver for Marvell Discovery (MV643XX) and Marvell Orion ethernet ports
+ * Copyright (C) 2002 Matthew Dharm <mdharm@momenco.com>
+ *
+ * Based on the 64360 driver from:
+ * Copyright (C) 2002 Rabeeh Khoury <rabeeh@galileo.co.il>
+ * Rabeeh Khoury <rabeeh@marvell.com>
+ *
+ * Copyright (C) 2003 PMC-Sierra, Inc.,
+ * written by Manish Lachwani
+ *
+ * Copyright (C) 2003 Ralf Baechle <ralf@linux-mips.org>
+ *
+ * Copyright (C) 2004-2006 MontaVista Software, Inc.
+ * Dale Farnsworth <dale@farnsworth.org>
+ *
+ * Copyright (C) 2004 Steven J. Hill <sjhill1@rockwellcollins.com>
+ * <sjhill@realitydiluted.com>
+ *
+ * Copyright (C) 2007-2008 Marvell Semiconductor
+ * Lennert Buytenhek <buytenh@marvell.com>
+ *
+ * Copyright (C) 2013 Michael Stapelberg <michael@stapelberg.de>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/init.h>
+#include <linux/dma-mapping.h>
+#include <linux/in.h>
+#include <linux/ip.h>
+#include <net/tso.h>
+#include <linux/tcp.h>
+#include <linux/udp.h>
+#include <linux/etherdevice.h>
+#include <linux/delay.h>
+#include <linux/ethtool.h>
+#include <linux/platform_device.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/spinlock.h>
+#include <linux/workqueue.h>
+#include <linux/phy.h>
+#include <linux/mv643xx_eth.h>
+#include <linux/io.h>
+#include <linux/interrupt.h>
+#include <linux/types.h>
+#include <linux/slab.h>
+#include <linux/clk.h>
+#include <linux/of.h>
+#include <linux/of_irq.h>
+#include <linux/of_net.h>
+#include <linux/of_mdio.h>
+
+static char mv643xx_eth_driver_name[] = "mv643xx_eth";
+static char mv643xx_eth_driver_version[] = "1.4";
+
+
+/*
+ * Registers shared between all ports.
+ */
+#define PHY_ADDR 0x0000
+#define WINDOW_BASE(w) (0x0200 + ((w) << 3))
+#define WINDOW_SIZE(w) (0x0204 + ((w) << 3))
+#define WINDOW_REMAP_HIGH(w) (0x0280 + ((w) << 2))
+#define WINDOW_BAR_ENABLE 0x0290
+#define WINDOW_PROTECT(w) (0x0294 + ((w) << 4))
+
+/*
+ * Main per-port registers. These live at offset 0x0400 for
+ * port #0, 0x0800 for port #1, and 0x0c00 for port #2.
+ */
+#define PORT_CONFIG 0x0000
+#define UNICAST_PROMISCUOUS_MODE 0x00000001
+#define PORT_CONFIG_EXT 0x0004
+#define MAC_ADDR_LOW 0x0014
+#define MAC_ADDR_HIGH 0x0018
+#define SDMA_CONFIG 0x001c
+#define TX_BURST_SIZE_16_64BIT 0x01000000
+#define TX_BURST_SIZE_4_64BIT 0x00800000
+#define BLM_TX_NO_SWAP 0x00000020
+#define BLM_RX_NO_SWAP 0x00000010
+#define RX_BURST_SIZE_16_64BIT 0x00000008
+#define RX_BURST_SIZE_4_64BIT 0x00000004
+#define PORT_SERIAL_CONTROL 0x003c
+#define SET_MII_SPEED_TO_100 0x01000000
+#define SET_GMII_SPEED_TO_1000 0x00800000
+#define SET_FULL_DUPLEX_MODE 0x00200000
+#define MAX_RX_PACKET_9700BYTE 0x000a0000
+#define DISABLE_AUTO_NEG_SPEED_GMII 0x00002000
+#define DO_NOT_FORCE_LINK_FAIL 0x00000400
+#define SERIAL_PORT_CONTROL_RESERVED 0x00000200
+#define DISABLE_AUTO_NEG_FOR_FLOW_CTRL 0x00000008
+#define DISABLE_AUTO_NEG_FOR_DUPLEX 0x00000004
+#define FORCE_LINK_PASS 0x00000002
+#define SERIAL_PORT_ENABLE 0x00000001
+#define PORT_STATUS 0x0044
+#define TX_FIFO_EMPTY 0x00000400
+#define TX_IN_PROGRESS 0x00000080
+#define PORT_SPEED_MASK 0x00000030
+#define PORT_SPEED_1000 0x00000010
+#define PORT_SPEED_100 0x00000020
+#define PORT_SPEED_10 0x00000000
+#define FLOW_CONTROL_ENABLED 0x00000008
+#define FULL_DUPLEX 0x00000004
+#define LINK_UP 0x00000002
+#define TXQ_COMMAND 0x0048
+#define TXQ_FIX_PRIO_CONF 0x004c
+#define PORT_SERIAL_CONTROL1 0x004c
+#define CLK125_BYPASS_EN 0x00000010
+#define TX_BW_RATE 0x0050
+#define TX_BW_MTU 0x0058
+#define TX_BW_BURST 0x005c
+#define INT_CAUSE 0x0060
+#define INT_TX_END 0x07f80000
+#define INT_TX_END_0 0x00080000
+#define INT_RX 0x000003fc
+#define INT_RX_0 0x00000004
+#define INT_EXT 0x00000002
+#define INT_CAUSE_EXT 0x0064
+#define INT_EXT_LINK_PHY 0x00110000
+#define INT_EXT_TX 0x000000ff
+#define INT_MASK 0x0068
+#define INT_MASK_EXT 0x006c
+#define TX_FIFO_URGENT_THRESHOLD 0x0074
+#define RX_DISCARD_FRAME_CNT 0x0084
+#define RX_OVERRUN_FRAME_CNT 0x0088
+#define TXQ_FIX_PRIO_CONF_MOVED 0x00dc
+#define TX_BW_RATE_MOVED 0x00e0
+#define TX_BW_MTU_MOVED 0x00e8
+#define TX_BW_BURST_MOVED 0x00ec
+#define RXQ_CURRENT_DESC_PTR(q) (0x020c + ((q) << 4))
+#define RXQ_COMMAND 0x0280
+#define TXQ_CURRENT_DESC_PTR(q) (0x02c0 + ((q) << 2))
+#define TXQ_BW_TOKENS(q) (0x0300 + ((q) << 4))
+#define TXQ_BW_CONF(q) (0x0304 + ((q) << 4))
+#define TXQ_BW_WRR_CONF(q) (0x0308 + ((q) << 4))
+
+/*
+ * Misc per-port registers.
+ */
+#define MIB_COUNTERS(p) (0x1000 + ((p) << 7))
+#define SPECIAL_MCAST_TABLE(p) (0x1400 + ((p) << 10))
+#define OTHER_MCAST_TABLE(p) (0x1500 + ((p) << 10))
+#define UNICAST_TABLE(p) (0x1600 + ((p) << 10))
+
+
+/*
+ * SDMA configuration register default value.
+ */
+#if defined(__BIG_ENDIAN)
+#define PORT_SDMA_CONFIG_DEFAULT_VALUE \
+ (RX_BURST_SIZE_4_64BIT | \
+ TX_BURST_SIZE_4_64BIT)
+#elif defined(__LITTLE_ENDIAN)
+#define PORT_SDMA_CONFIG_DEFAULT_VALUE \
+ (RX_BURST_SIZE_4_64BIT | \
+ BLM_RX_NO_SWAP | \
+ BLM_TX_NO_SWAP | \
+ TX_BURST_SIZE_4_64BIT)
+#else
+#error One of __BIG_ENDIAN or __LITTLE_ENDIAN must be defined
+#endif
+
+
+/*
+ * Misc definitions.
+ */
+#define DEFAULT_RX_QUEUE_SIZE 128
+#define DEFAULT_TX_QUEUE_SIZE 512
+#define SKB_DMA_REALIGN ((PAGE_SIZE - NET_SKB_PAD) % SMP_CACHE_BYTES)
+
+#define TSO_HEADER_SIZE 128
+
+/* Max number of allowed TCP segments for software TSO */
+#define MV643XX_MAX_TSO_SEGS 100
+#define MV643XX_MAX_SKB_DESCS (MV643XX_MAX_TSO_SEGS * 2 + MAX_SKB_FRAGS)
+
+#define IS_TSO_HEADER(txq, addr) \
+ ((addr >= txq->tso_hdrs_dma) && \
+ (addr < txq->tso_hdrs_dma + txq->tx_ring_size * TSO_HEADER_SIZE))
+
+#define DESC_DMA_MAP_SINGLE 0
+#define DESC_DMA_MAP_PAGE 1
+
+/*
+ * RX/TX descriptors.
+ */
+#if defined(__BIG_ENDIAN)
+struct rx_desc {
+ u16 byte_cnt; /* Descriptor buffer byte count */
+ u16 buf_size; /* Buffer size */
+ u32 cmd_sts; /* Descriptor command status */
+ u32 next_desc_ptr; /* Next descriptor pointer */
+ u32 buf_ptr; /* Descriptor buffer pointer */
+};
+
+struct tx_desc {
+ u16 byte_cnt; /* buffer byte count */
+ u16 l4i_chk; /* CPU provided TCP checksum */
+ u32 cmd_sts; /* Command/status field */
+ u32 next_desc_ptr; /* Pointer to next descriptor */
+ u32 buf_ptr; /* pointer to buffer for this descriptor*/
+};
+#elif defined(__LITTLE_ENDIAN)
+struct rx_desc {
+ u32 cmd_sts; /* Descriptor command status */
+ u16 buf_size; /* Buffer size */
+ u16 byte_cnt; /* Descriptor buffer byte count */
+ u32 buf_ptr; /* Descriptor buffer pointer */
+ u32 next_desc_ptr; /* Next descriptor pointer */
+};
+
+struct tx_desc {
+ u32 cmd_sts; /* Command/status field */
+ u16 l4i_chk; /* CPU provided TCP checksum */
+ u16 byte_cnt; /* buffer byte count */
+ u32 buf_ptr; /* pointer to buffer for this descriptor*/
+ u32 next_desc_ptr; /* Pointer to next descriptor */
+};
+#else
+#error One of __BIG_ENDIAN or __LITTLE_ENDIAN must be defined
+#endif
+
+/* RX & TX descriptor command */
+#define BUFFER_OWNED_BY_DMA 0x80000000
+
+/* RX & TX descriptor status */
+#define ERROR_SUMMARY 0x00000001
+
+/* RX descriptor status */
+#define LAYER_4_CHECKSUM_OK 0x40000000
+#define RX_ENABLE_INTERRUPT 0x20000000
+#define RX_FIRST_DESC 0x08000000
+#define RX_LAST_DESC 0x04000000
+#define RX_IP_HDR_OK 0x02000000
+#define RX_PKT_IS_IPV4 0x01000000
+#define RX_PKT_IS_ETHERNETV2 0x00800000
+#define RX_PKT_LAYER4_TYPE_MASK 0x00600000
+#define RX_PKT_LAYER4_TYPE_TCP_IPV4 0x00000000
+#define RX_PKT_IS_VLAN_TAGGED 0x00080000
+
+/* TX descriptor command */
+#define TX_ENABLE_INTERRUPT 0x00800000
+#define GEN_CRC 0x00400000
+#define TX_FIRST_DESC 0x00200000
+#define TX_LAST_DESC 0x00100000
+#define ZERO_PADDING 0x00080000
+#define GEN_IP_V4_CHECKSUM 0x00040000
+#define GEN_TCP_UDP_CHECKSUM 0x00020000
+#define UDP_FRAME 0x00010000
+#define MAC_HDR_EXTRA_4_BYTES 0x00008000
+#define GEN_TCP_UDP_CHK_FULL 0x00000400
+#define MAC_HDR_EXTRA_8_BYTES 0x00000200
+
+#define TX_IHL_SHIFT 11
+
+
+/* global *******************************************************************/
+struct mv643xx_eth_shared_private {
+ /*
+ * Ethernet controller base address.
+ */
+ void __iomem *base;
+
+ /*
+ * Per-port MBUS window access register value.
+ */
+ u32 win_protect;
+
+ /*
+ * Hardware-specific parameters.
+ */
+ int extended_rx_coal_limit;
+ int tx_bw_control;
+ int tx_csum_limit;
+ struct clk *clk;
+};
+
+#define TX_BW_CONTROL_ABSENT 0
+#define TX_BW_CONTROL_OLD_LAYOUT 1
+#define TX_BW_CONTROL_NEW_LAYOUT 2
+
+static int mv643xx_eth_open(struct net_device *dev);
+static int mv643xx_eth_stop(struct net_device *dev);
+
+
+/* per-port *****************************************************************/
+struct mib_counters {
+ u64 good_octets_received;
+ u32 bad_octets_received;
+ u32 internal_mac_transmit_err;
+ u32 good_frames_received;
+ u32 bad_frames_received;
+ u32 broadcast_frames_received;
+ u32 multicast_frames_received;
+ u32 frames_64_octets;
+ u32 frames_65_to_127_octets;
+ u32 frames_128_to_255_octets;
+ u32 frames_256_to_511_octets;
+ u32 frames_512_to_1023_octets;
+ u32 frames_1024_to_max_octets;
+ u64 good_octets_sent;
+ u32 good_frames_sent;
+ u32 excessive_collision;
+ u32 multicast_frames_sent;
+ u32 broadcast_frames_sent;
+ u32 unrec_mac_control_received;
+ u32 fc_sent;
+ u32 good_fc_received;
+ u32 bad_fc_received;
+ u32 undersize_received;
+ u32 fragments_received;
+ u32 oversize_received;
+ u32 jabber_received;
+ u32 mac_receive_error;
+ u32 bad_crc_event;
+ u32 collision;
+ u32 late_collision;
+ /* Non MIB hardware counters */
+ u32 rx_discard;
+ u32 rx_overrun;
+};
+
+struct rx_queue {
+ int index;
+
+ int rx_ring_size;
+
+ int rx_desc_count;
+ int rx_curr_desc;
+ int rx_used_desc;
+
+ struct rx_desc *rx_desc_area;
+ dma_addr_t rx_desc_dma;
+ int rx_desc_area_size;
+ struct sk_buff **rx_skb;
+};
+
+struct tx_queue {
+ int index;
+
+ int tx_ring_size;
+
+ int tx_desc_count;
+ int tx_curr_desc;
+ int tx_used_desc;
+
+ int tx_stop_threshold;
+ int tx_wake_threshold;
+
+ char *tso_hdrs;
+ dma_addr_t tso_hdrs_dma;
+
+ struct tx_desc *tx_desc_area;
+ char *tx_desc_mapping; /* array to track the type of the dma mapping */
+ dma_addr_t tx_desc_dma;
+ int tx_desc_area_size;
+
+ struct sk_buff_head tx_skb;
+
+ unsigned long tx_packets;
+ unsigned long tx_bytes;
+ unsigned long tx_dropped;
+};
+
+struct mv643xx_eth_private {
+ struct mv643xx_eth_shared_private *shared;
+ void __iomem *base;
+ int port_num;
+
+ struct net_device *dev;
+
+ struct phy_device *phy;
+
+ struct timer_list mib_counters_timer;
+ spinlock_t mib_counters_lock;
+ struct mib_counters mib_counters;
+
+ struct work_struct tx_timeout_task;
+
+ struct napi_struct napi;
+ u32 int_mask;
+ u8 oom;
+ u8 work_link;
+ u8 work_tx;
+ u8 work_tx_end;
+ u8 work_rx;
+ u8 work_rx_refill;
+
+ int skb_size;
+
+ /*
+ * RX state.
+ */
+ int rx_ring_size;
+ unsigned long rx_desc_sram_addr;
+ int rx_desc_sram_size;
+ int rxq_count;
+ struct timer_list rx_oom;
+ struct rx_queue rxq[8];
+
+ /*
+ * TX state.
+ */
+ int tx_ring_size;
+ unsigned long tx_desc_sram_addr;
+ int tx_desc_sram_size;
+ int txq_count;
+ struct tx_queue txq[8];
+
+ /*
+ * Hardware-specific parameters.
+ */
+ struct clk *clk;
+ unsigned int t_clk;
+};
+
+
+/* port register accessors **************************************************/
+static inline u32 rdl(struct mv643xx_eth_private *mp, int offset)
+{
+ return readl(mp->shared->base + offset);
+}
+
+static inline u32 rdlp(struct mv643xx_eth_private *mp, int offset)
+{
+ return readl(mp->base + offset);
+}
+
+static inline void wrl(struct mv643xx_eth_private *mp, int offset, u32 data)
+{
+ writel(data, mp->shared->base + offset);
+}
+
+static inline void wrlp(struct mv643xx_eth_private *mp, int offset, u32 data)
+{
+ writel(data, mp->base + offset);
+}
+
+
+/* rxq/txq helper functions *************************************************/
+static struct mv643xx_eth_private *rxq_to_mp(struct rx_queue *rxq)
+{
+ return container_of(rxq, struct mv643xx_eth_private, rxq[rxq->index]);
+}
+
+static struct mv643xx_eth_private *txq_to_mp(struct tx_queue *txq)
+{
+ return container_of(txq, struct mv643xx_eth_private, txq[txq->index]);
+}
+
+static void rxq_enable(struct rx_queue *rxq)
+{
+ struct mv643xx_eth_private *mp = rxq_to_mp(rxq);
+ wrlp(mp, RXQ_COMMAND, 1 << rxq->index);
+}
+
+static void rxq_disable(struct rx_queue *rxq)
+{
+ struct mv643xx_eth_private *mp = rxq_to_mp(rxq);
+ u8 mask = 1 << rxq->index;
+
+ wrlp(mp, RXQ_COMMAND, mask << 8);
+ while (rdlp(mp, RXQ_COMMAND) & mask)
+ udelay(10);
+}
+
+static void txq_reset_hw_ptr(struct tx_queue *txq)
+{
+ struct mv643xx_eth_private *mp = txq_to_mp(txq);
+ u32 addr;
+
+ addr = (u32)txq->tx_desc_dma;
+ addr += txq->tx_curr_desc * sizeof(struct tx_desc);
+ wrlp(mp, TXQ_CURRENT_DESC_PTR(txq->index), addr);
+}
+
+static void txq_enable(struct tx_queue *txq)
+{
+ struct mv643xx_eth_private *mp = txq_to_mp(txq);
+ wrlp(mp, TXQ_COMMAND, 1 << txq->index);
+}
+
+static void txq_disable(struct tx_queue *txq)
+{
+ struct mv643xx_eth_private *mp = txq_to_mp(txq);
+ u8 mask = 1 << txq->index;
+
+ wrlp(mp, TXQ_COMMAND, mask << 8);
+ while (rdlp(mp, TXQ_COMMAND) & mask)
+ udelay(10);
+}
+
+static void txq_maybe_wake(struct tx_queue *txq)
+{
+ struct mv643xx_eth_private *mp = txq_to_mp(txq);
+ struct netdev_queue *nq = netdev_get_tx_queue(mp->dev, txq->index);
+
+ if (netif_tx_queue_stopped(nq)) {
+ __netif_tx_lock(nq, smp_processor_id());
+ if (txq->tx_desc_count <= txq->tx_wake_threshold)
+ netif_tx_wake_queue(nq);
+ __netif_tx_unlock(nq);
+ }
+}
+
+static int rxq_process(struct rx_queue *rxq, int budget)
+{
+ struct mv643xx_eth_private *mp = rxq_to_mp(rxq);
+ struct net_device_stats *stats = &mp->dev->stats;
+ int rx;
+
+ rx = 0;
+ while (rx < budget && rxq->rx_desc_count) {
+ struct rx_desc *rx_desc;
+ unsigned int cmd_sts;
+ struct sk_buff *skb;
+ u16 byte_cnt;
+
+ rx_desc = &rxq->rx_desc_area[rxq->rx_curr_desc];
+
+ cmd_sts = rx_desc->cmd_sts;
+ if (cmd_sts & BUFFER_OWNED_BY_DMA)
+ break;
+ rmb();
+
+ skb = rxq->rx_skb[rxq->rx_curr_desc];
+ rxq->rx_skb[rxq->rx_curr_desc] = NULL;
+
+ rxq->rx_curr_desc++;
+ if (rxq->rx_curr_desc == rxq->rx_ring_size)
+ rxq->rx_curr_desc = 0;
+
+ dma_unmap_single(mp->dev->dev.parent, rx_desc->buf_ptr,
+ rx_desc->buf_size, DMA_FROM_DEVICE);
+ rxq->rx_desc_count--;
+ rx++;
+
+ mp->work_rx_refill |= 1 << rxq->index;
+
+ byte_cnt = rx_desc->byte_cnt;
+
+ /*
+ * Update statistics.
+ *
+ * Note that the descriptor byte count includes 2 dummy
+ * bytes automatically inserted by the hardware at the
+ * start of the packet (which we don't count), and a 4
+ * byte CRC at the end of the packet (which we do count).
+ */
+ stats->rx_packets++;
+ stats->rx_bytes += byte_cnt - 2;
+
+ /*
+ * In case we received a packet without first / last bits
+ * on, or the error summary bit is set, the packet needs
+ * to be dropped.
+ */
+ if ((cmd_sts & (RX_FIRST_DESC | RX_LAST_DESC | ERROR_SUMMARY))
+ != (RX_FIRST_DESC | RX_LAST_DESC))
+ goto err;
+
+ /*
+ * The -4 is for the CRC in the trailer of the
+ * received packet
+ */
+ skb_put(skb, byte_cnt - 2 - 4);
+
+ if (cmd_sts & LAYER_4_CHECKSUM_OK)
+ skb->ip_summed = CHECKSUM_UNNECESSARY;
+ skb->protocol = eth_type_trans(skb, mp->dev);
+
+ napi_gro_receive(&mp->napi, skb);
+
+ continue;
+
+err:
+ stats->rx_dropped++;
+
+ if ((cmd_sts & (RX_FIRST_DESC | RX_LAST_DESC)) !=
+ (RX_FIRST_DESC | RX_LAST_DESC)) {
+ if (net_ratelimit())
+ netdev_err(mp->dev,
+ "received packet spanning multiple descriptors\n");
+ }
+
+ if (cmd_sts & ERROR_SUMMARY)
+ stats->rx_errors++;
+
+ dev_kfree_skb(skb);
+ }
+
+ if (rx < budget)
+ mp->work_rx &= ~(1 << rxq->index);
+
+ return rx;
+}
+
+static int rxq_refill(struct rx_queue *rxq, int budget)
+{
+ struct mv643xx_eth_private *mp = rxq_to_mp(rxq);
+ int refilled;
+
+ refilled = 0;
+ while (refilled < budget && rxq->rx_desc_count < rxq->rx_ring_size) {
+ struct sk_buff *skb;
+ int rx;
+ struct rx_desc *rx_desc;
+ int size;
+
+ skb = netdev_alloc_skb(mp->dev, mp->skb_size);
+
+ if (skb == NULL) {
+ mp->oom = 1;
+ goto oom;
+ }
+
+ if (SKB_DMA_REALIGN)
+ skb_reserve(skb, SKB_DMA_REALIGN);
+
+ refilled++;
+ rxq->rx_desc_count++;
+
+ rx = rxq->rx_used_desc++;
+ if (rxq->rx_used_desc == rxq->rx_ring_size)
+ rxq->rx_used_desc = 0;
+
+ rx_desc = rxq->rx_desc_area + rx;
+
+ size = skb_end_pointer(skb) - skb->data;
+ rx_desc->buf_ptr = dma_map_single(mp->dev->dev.parent,
+ skb->data, size,
+ DMA_FROM_DEVICE);
+ rx_desc->buf_size = size;
+ rxq->rx_skb[rx] = skb;
+ wmb();
+ rx_desc->cmd_sts = BUFFER_OWNED_BY_DMA | RX_ENABLE_INTERRUPT;
+ wmb();
+
+ /*
+ * The hardware automatically prepends 2 bytes of
+ * dummy data to each received packet, so that the
+ * IP header ends up 16-byte aligned.
+ */
+ skb_reserve(skb, 2);
+ }
+
+ if (refilled < budget)
+ mp->work_rx_refill &= ~(1 << rxq->index);
+
+oom:
+ return refilled;
+}
+
+
+/* tx ***********************************************************************/
+static inline unsigned int has_tiny_unaligned_frags(struct sk_buff *skb)
+{
+ int frag;
+
+ for (frag = 0; frag < skb_shinfo(skb)->nr_frags; frag++) {
+ const skb_frag_t *fragp = &skb_shinfo(skb)->frags[frag];
+
+ if (skb_frag_size(fragp) <= 8 && fragp->page_offset & 7)
+ return 1;
+ }
+
+ return 0;
+}
+
+static inline __be16 sum16_as_be(__sum16 sum)
+{
+ return (__force __be16)sum;
+}
+
+static int skb_tx_csum(struct mv643xx_eth_private *mp, struct sk_buff *skb,
+ u16 *l4i_chk, u32 *command, int length)
+{
+ int ret;
+ u32 cmd = 0;
+
+ if (skb->ip_summed == CHECKSUM_PARTIAL) {
+ int hdr_len;
+ int tag_bytes;
+
+ BUG_ON(skb->protocol != htons(ETH_P_IP) &&
+ skb->protocol != htons(ETH_P_8021Q));
+
+ hdr_len = (void *)ip_hdr(skb) - (void *)skb->data;
+ tag_bytes = hdr_len - ETH_HLEN;
+
+ if (length - hdr_len > mp->shared->tx_csum_limit ||
+ unlikely(tag_bytes & ~12)) {
+ ret = skb_checksum_help(skb);
+ if (!ret)
+ goto no_csum;
+ return ret;
+ }
+
+ if (tag_bytes & 4)
+ cmd |= MAC_HDR_EXTRA_4_BYTES;
+ if (tag_bytes & 8)
+ cmd |= MAC_HDR_EXTRA_8_BYTES;
+
+ cmd |= GEN_TCP_UDP_CHECKSUM | GEN_TCP_UDP_CHK_FULL |
+ GEN_IP_V4_CHECKSUM |
+ ip_hdr(skb)->ihl << TX_IHL_SHIFT;
+
+ /* TODO: Revisit this. With the usage of GEN_TCP_UDP_CHK_FULL
+ * it seems we don't need to pass the initial checksum. */
+ switch (ip_hdr(skb)->protocol) {
+ case IPPROTO_UDP:
+ cmd |= UDP_FRAME;
+ *l4i_chk = 0;
+ break;
+ case IPPROTO_TCP:
+ *l4i_chk = 0;
+ break;
+ default:
+ WARN(1, "protocol not supported");
+ }
+ } else {
+no_csum:
+ /* Errata BTS #50, IHL must be 5 if no HW checksum */
+ cmd |= 5 << TX_IHL_SHIFT;
+ }
+ *command = cmd;
+ return 0;
+}
+
+static inline int
+txq_put_data_tso(struct net_device *dev, struct tx_queue *txq,
+ struct sk_buff *skb, char *data, int length,
+ bool last_tcp, bool is_last)
+{
+ int tx_index;
+ u32 cmd_sts;
+ struct tx_desc *desc;
+
+ tx_index = txq->tx_curr_desc++;
+ if (txq->tx_curr_desc == txq->tx_ring_size)
+ txq->tx_curr_desc = 0;
+ desc = &txq->tx_desc_area[tx_index];
+ txq->tx_desc_mapping[tx_index] = DESC_DMA_MAP_SINGLE;
+
+ desc->l4i_chk = 0;
+ desc->byte_cnt = length;
+ desc->buf_ptr = dma_map_single(dev->dev.parent, data,
+ length, DMA_TO_DEVICE);
+ if (unlikely(dma_mapping_error(dev->dev.parent, desc->buf_ptr))) {
+ WARN(1, "dma_map_single failed!\n");
+ return -ENOMEM;
+ }
+
+ cmd_sts = BUFFER_OWNED_BY_DMA;
+ if (last_tcp) {
+ /* last descriptor in the TCP packet */
+ cmd_sts |= ZERO_PADDING | TX_LAST_DESC;
+ /* last descriptor in SKB */
+ if (is_last)
+ cmd_sts |= TX_ENABLE_INTERRUPT;
+ }
+ desc->cmd_sts = cmd_sts;
+ return 0;
+}
+
+static inline void
+txq_put_hdr_tso(struct sk_buff *skb, struct tx_queue *txq, int length)
+{
+ struct mv643xx_eth_private *mp = txq_to_mp(txq);
+ int hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
+ int tx_index;
+ struct tx_desc *desc;
+ int ret;
+ u32 cmd_csum = 0;
+ u16 l4i_chk = 0;
+
+ tx_index = txq->tx_curr_desc;
+ desc = &txq->tx_desc_area[tx_index];
+
+ ret = skb_tx_csum(mp, skb, &l4i_chk, &cmd_csum, length);
+ if (ret)
+ WARN(1, "failed to prepare checksum!");
+
+ /* Should we set this? Can't use the value from skb_tx_csum()
+ * as it's not the correct initial L4 checksum to use. */
+ desc->l4i_chk = 0;
+
+ desc->byte_cnt = hdr_len;
+ desc->buf_ptr = txq->tso_hdrs_dma +
+ txq->tx_curr_desc * TSO_HEADER_SIZE;
+ desc->cmd_sts = cmd_csum | BUFFER_OWNED_BY_DMA | TX_FIRST_DESC |
+ GEN_CRC;
+
+ txq->tx_curr_desc++;
+ if (txq->tx_curr_desc == txq->tx_ring_size)
+ txq->tx_curr_desc = 0;
+}
+
+static int txq_submit_tso(struct tx_queue *txq, struct sk_buff *skb,
+ struct net_device *dev)
+{
+ struct mv643xx_eth_private *mp = txq_to_mp(txq);
+ int total_len, data_left, ret;
+ int desc_count = 0;
+ struct tso_t tso;
+ int hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
+
+ /* Count needed descriptors */
+ if ((txq->tx_desc_count + tso_count_descs(skb)) >= txq->tx_ring_size) {
+ netdev_dbg(dev, "not enough descriptors for TSO!\n");
+ return -EBUSY;
+ }
+
+ /* Initialize the TSO handler, and prepare the first payload */
+ tso_start(skb, &tso);
+
+ total_len = skb->len - hdr_len;
+ while (total_len > 0) {
+ char *hdr;
+
+ data_left = min_t(int, skb_shinfo(skb)->gso_size, total_len);
+ total_len -= data_left;
+ desc_count++;
+
+ /* prepare packet headers: MAC + IP + TCP */
+ hdr = txq->tso_hdrs + txq->tx_curr_desc * TSO_HEADER_SIZE;
+ tso_build_hdr(skb, hdr, &tso, data_left, total_len == 0);
+ txq_put_hdr_tso(skb, txq, data_left);
+
+ while (data_left > 0) {
+ int size;
+ desc_count++;
+
+ size = min_t(int, tso.size, data_left);
+ ret = txq_put_data_tso(dev, txq, skb, tso.data, size,
+ size == data_left,
+ total_len == 0);
+ if (ret)
+ goto err_release;
+ data_left -= size;
+ tso_build_data(skb, &tso, size);
+ }
+ }
+
+ __skb_queue_tail(&txq->tx_skb, skb);
+ skb_tx_timestamp(skb);
+
+ /* clear TX_END status */
+ mp->work_tx_end &= ~(1 << txq->index);
+
+ /* ensure all descriptors are written before poking hardware */
+ wmb();
+ txq_enable(txq);
+ txq->tx_desc_count += desc_count;
+ return 0;
+err_release:
+ /* TODO: Release all used data descriptors; header descriptors must not
+ * be DMA-unmapped.
+ */
+ return ret;
+}
+
+static void txq_submit_frag_skb(struct tx_queue *txq, struct sk_buff *skb)
+{
+ struct mv643xx_eth_private *mp = txq_to_mp(txq);
+ int nr_frags = skb_shinfo(skb)->nr_frags;
+ int frag;
+
+ for (frag = 0; frag < nr_frags; frag++) {
+ skb_frag_t *this_frag;
+ int tx_index;
+ struct tx_desc *desc;
+
+ this_frag = &skb_shinfo(skb)->frags[frag];
+ tx_index = txq->tx_curr_desc++;
+ if (txq->tx_curr_desc == txq->tx_ring_size)
+ txq->tx_curr_desc = 0;
+ desc = &txq->tx_desc_area[tx_index];
+ txq->tx_desc_mapping[tx_index] = DESC_DMA_MAP_PAGE;
+
+ /*
+ * The last fragment will generate an interrupt
+ * which will free the skb on TX completion.
+ */
+ if (frag == nr_frags - 1) {
+ desc->cmd_sts = BUFFER_OWNED_BY_DMA |
+ ZERO_PADDING | TX_LAST_DESC |
+ TX_ENABLE_INTERRUPT;
+ } else {
+ desc->cmd_sts = BUFFER_OWNED_BY_DMA;
+ }
+
+ desc->l4i_chk = 0;
+ desc->byte_cnt = skb_frag_size(this_frag);
+ desc->buf_ptr = skb_frag_dma_map(mp->dev->dev.parent,
+ this_frag, 0, desc->byte_cnt,
+ DMA_TO_DEVICE);
+ }
+}
+
+static int txq_submit_skb(struct tx_queue *txq, struct sk_buff *skb,
+ struct net_device *dev)
+{
+ struct mv643xx_eth_private *mp = txq_to_mp(txq);
+ int nr_frags = skb_shinfo(skb)->nr_frags;
+ int tx_index;
+ struct tx_desc *desc;
+ u32 cmd_sts;
+ u16 l4i_chk;
+ int length, ret;
+
+ cmd_sts = 0;
+ l4i_chk = 0;
+
+ if (txq->tx_ring_size - txq->tx_desc_count < MAX_SKB_FRAGS + 1) {
+ if (net_ratelimit())
+ netdev_err(dev, "tx queue full?!\n");
+ return -EBUSY;
+ }
+
+ ret = skb_tx_csum(mp, skb, &l4i_chk, &cmd_sts, skb->len);
+ if (ret)
+ return ret;
+ cmd_sts |= TX_FIRST_DESC | GEN_CRC | BUFFER_OWNED_BY_DMA;
+
+ tx_index = txq->tx_curr_desc++;
+ if (txq->tx_curr_desc == txq->tx_ring_size)
+ txq->tx_curr_desc = 0;
+ desc = &txq->tx_desc_area[tx_index];
+ txq->tx_desc_mapping[tx_index] = DESC_DMA_MAP_SINGLE;
+
+ if (nr_frags) {
+ txq_submit_frag_skb(txq, skb);
+ length = skb_headlen(skb);
+ } else {
+ cmd_sts |= ZERO_PADDING | TX_LAST_DESC | TX_ENABLE_INTERRUPT;
+ length = skb->len;
+ }
+
+ desc->l4i_chk = l4i_chk;
+ desc->byte_cnt = length;
+ desc->buf_ptr = dma_map_single(mp->dev->dev.parent, skb->data,
+ length, DMA_TO_DEVICE);
+
+ __skb_queue_tail(&txq->tx_skb, skb);
+
+ skb_tx_timestamp(skb);
+
+ /* ensure all other descriptors are written before first cmd_sts */
+ wmb();
+ desc->cmd_sts = cmd_sts;
+
+ /* clear TX_END status */
+ mp->work_tx_end &= ~(1 << txq->index);
+
+ /* ensure all descriptors are written before poking hardware */
+ wmb();
+ txq_enable(txq);
+
+ txq->tx_desc_count += nr_frags + 1;
+
+ return 0;
+}
+
+static netdev_tx_t mv643xx_eth_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+ struct mv643xx_eth_private *mp = netdev_priv(dev);
+ int length, queue, ret;
+ struct tx_queue *txq;
+ struct netdev_queue *nq;
+
+ queue = skb_get_queue_mapping(skb);
+ txq = mp->txq + queue;
+ nq = netdev_get_tx_queue(dev, queue);
+
+ if (has_tiny_unaligned_frags(skb) && __skb_linearize(skb)) {
+ netdev_printk(KERN_DEBUG, dev,
+ "failed to linearize skb with tiny unaligned fragment\n");
+ return NETDEV_TX_BUSY;
+ }
+
+ length = skb->len;
+
+ if (skb_is_gso(skb))
+ ret = txq_submit_tso(txq, skb, dev);
+ else
+ ret = txq_submit_skb(txq, skb, dev);
+ if (!ret) {
+ txq->tx_bytes += length;
+ txq->tx_packets++;
+
+ if (txq->tx_desc_count >= txq->tx_stop_threshold)
+ netif_tx_stop_queue(nq);
+ } else {
+ txq->tx_dropped++;
+ dev_kfree_skb_any(skb);
+ }
+
+ return NETDEV_TX_OK;
+}
+
+
+/* tx napi ******************************************************************/
+static void txq_kick(struct tx_queue *txq)
+{
+ struct mv643xx_eth_private *mp = txq_to_mp(txq);
+ struct netdev_queue *nq = netdev_get_tx_queue(mp->dev, txq->index);
+ u32 hw_desc_ptr;
+ u32 expected_ptr;
+
+ __netif_tx_lock(nq, smp_processor_id());
+
+ if (rdlp(mp, TXQ_COMMAND) & (1 << txq->index))
+ goto out;
+
+ hw_desc_ptr = rdlp(mp, TXQ_CURRENT_DESC_PTR(txq->index));
+ expected_ptr = (u32)txq->tx_desc_dma +
+ txq->tx_curr_desc * sizeof(struct tx_desc);
+
+ if (hw_desc_ptr != expected_ptr)
+ txq_enable(txq);
+
+out:
+ __netif_tx_unlock(nq);
+
+ mp->work_tx_end &= ~(1 << txq->index);
+}
+
+static int txq_reclaim(struct tx_queue *txq, int budget, int force)
+{
+ struct mv643xx_eth_private *mp = txq_to_mp(txq);
+ struct netdev_queue *nq = netdev_get_tx_queue(mp->dev, txq->index);
+ int reclaimed;
+
+ __netif_tx_lock_bh(nq);
+
+ reclaimed = 0;
+ while (reclaimed < budget && txq->tx_desc_count > 0) {
+ int tx_index;
+ struct tx_desc *desc;
+ u32 cmd_sts;
+ char desc_dma_map;
+
+ tx_index = txq->tx_used_desc;
+ desc = &txq->tx_desc_area[tx_index];
+ desc_dma_map = txq->tx_desc_mapping[tx_index];
+
+ cmd_sts = desc->cmd_sts;
+
+ if (cmd_sts & BUFFER_OWNED_BY_DMA) {
+ if (!force)
+ break;
+ desc->cmd_sts = cmd_sts & ~BUFFER_OWNED_BY_DMA;
+ }
+
+ txq->tx_used_desc = tx_index + 1;
+ if (txq->tx_used_desc == txq->tx_ring_size)
+ txq->tx_used_desc = 0;
+
+ reclaimed++;
+ txq->tx_desc_count--;
+
+ if (!IS_TSO_HEADER(txq, desc->buf_ptr)) {
+
+ if (desc_dma_map == DESC_DMA_MAP_PAGE)
+ dma_unmap_page(mp->dev->dev.parent,
+ desc->buf_ptr,
+ desc->byte_cnt,
+ DMA_TO_DEVICE);
+ else
+ dma_unmap_single(mp->dev->dev.parent,
+ desc->buf_ptr,
+ desc->byte_cnt,
+ DMA_TO_DEVICE);
+ }
+
+ if (cmd_sts & TX_ENABLE_INTERRUPT) {
+ struct sk_buff *skb = __skb_dequeue(&txq->tx_skb);
+
+ if (!WARN_ON(!skb))
+ dev_kfree_skb(skb);
+ }
+
+ if (cmd_sts & ERROR_SUMMARY) {
+ netdev_info(mp->dev, "tx error\n");
+ mp->dev->stats.tx_errors++;
+ }
+
+ }
+
+ __netif_tx_unlock_bh(nq);
+
+ if (reclaimed < budget)
+ mp->work_tx &= ~(1 << txq->index);
+
+ return reclaimed;
+}
+
+
+/* tx rate control **********************************************************/
+/*
+ * Set total maximum TX rate (shared by all TX queues for this port)
+ * to 'rate' bits per second, with a maximum burst of 'burst' bytes.
+ */
+static void tx_set_rate(struct mv643xx_eth_private *mp, int rate, int burst)
+{
+ int token_rate;
+ int mtu;
+ int bucket_size;
+
+ token_rate = ((rate / 1000) * 64) / (mp->t_clk / 1000);
+ if (token_rate > 1023)
+ token_rate = 1023;
+
+ mtu = (mp->dev->mtu + 255) >> 8;
+ if (mtu > 63)
+ mtu = 63;
+
+ bucket_size = (burst + 255) >> 8;
+ if (bucket_size > 65535)
+ bucket_size = 65535;
+
+ switch (mp->shared->tx_bw_control) {
+ case TX_BW_CONTROL_OLD_LAYOUT:
+ wrlp(mp, TX_BW_RATE, token_rate);
+ wrlp(mp, TX_BW_MTU, mtu);
+ wrlp(mp, TX_BW_BURST, bucket_size);
+ break;
+ case TX_BW_CONTROL_NEW_LAYOUT:
+ wrlp(mp, TX_BW_RATE_MOVED, token_rate);
+ wrlp(mp, TX_BW_MTU_MOVED, mtu);
+ wrlp(mp, TX_BW_BURST_MOVED, bucket_size);
+ break;
+ }
+}
+
+static void txq_set_rate(struct tx_queue *txq, int rate, int burst)
+{
+ struct mv643xx_eth_private *mp = txq_to_mp(txq);
+ int token_rate;
+ int bucket_size;
+
+ token_rate = ((rate / 1000) * 64) / (mp->t_clk / 1000);
+ if (token_rate > 1023)
+ token_rate = 1023;
+
+ bucket_size = (burst + 255) >> 8;
+ if (bucket_size > 65535)
+ bucket_size = 65535;
+
+ wrlp(mp, TXQ_BW_TOKENS(txq->index), token_rate << 14);
+ wrlp(mp, TXQ_BW_CONF(txq->index), (bucket_size << 10) | token_rate);
+}
+
+static void txq_set_fixed_prio_mode(struct tx_queue *txq)
+{
+ struct mv643xx_eth_private *mp = txq_to_mp(txq);
+ int off;
+ u32 val;
+
+ /*
+ * Turn on fixed priority mode.
+ */
+ off = 0;
+ switch (mp->shared->tx_bw_control) {
+ case TX_BW_CONTROL_OLD_LAYOUT:
+ off = TXQ_FIX_PRIO_CONF;
+ break;
+ case TX_BW_CONTROL_NEW_LAYOUT:
+ off = TXQ_FIX_PRIO_CONF_MOVED;
+ break;
+ }
+
+ if (off) {
+ val = rdlp(mp, off);
+ val |= 1 << txq->index;
+ wrlp(mp, off, val);
+ }
+}
+
+
+/* mii management interface *************************************************/
+static void mv643xx_eth_adjust_link(struct net_device *dev)
+{
+ struct mv643xx_eth_private *mp = netdev_priv(dev);
+ u32 pscr = rdlp(mp, PORT_SERIAL_CONTROL);
+ u32 autoneg_disable = FORCE_LINK_PASS |
+ DISABLE_AUTO_NEG_SPEED_GMII |
+ DISABLE_AUTO_NEG_FOR_FLOW_CTRL |
+ DISABLE_AUTO_NEG_FOR_DUPLEX;
+
+ if (mp->phy->autoneg == AUTONEG_ENABLE) {
+ /* enable auto negotiation */
+ pscr &= ~autoneg_disable;
+ goto out_write;
+ }
+
+ pscr |= autoneg_disable;
+
+ if (mp->phy->speed == SPEED_1000) {
+ /* force gigabit, half duplex not supported */
+ pscr |= SET_GMII_SPEED_TO_1000;
+ pscr |= SET_FULL_DUPLEX_MODE;
+ goto out_write;
+ }
+
+ pscr &= ~SET_GMII_SPEED_TO_1000;
+
+ if (mp->phy->speed == SPEED_100)
+ pscr |= SET_MII_SPEED_TO_100;
+ else
+ pscr &= ~SET_MII_SPEED_TO_100;
+
+ if (mp->phy->duplex == DUPLEX_FULL)
+ pscr |= SET_FULL_DUPLEX_MODE;
+ else
+ pscr &= ~SET_FULL_DUPLEX_MODE;
+
+out_write:
+ wrlp(mp, PORT_SERIAL_CONTROL, pscr);
+}
+
+/* statistics ***************************************************************/
+static struct net_device_stats *mv643xx_eth_get_stats(struct net_device *dev)
+{
+ struct mv643xx_eth_private *mp = netdev_priv(dev);
+ struct net_device_stats *stats = &dev->stats;
+ unsigned long tx_packets = 0;
+ unsigned long tx_bytes = 0;
+ unsigned long tx_dropped = 0;
+ int i;
+
+ for (i = 0; i < mp->txq_count; i++) {
+ struct tx_queue *txq = mp->txq + i;
+
+ tx_packets += txq->tx_packets;
+ tx_bytes += txq->tx_bytes;
+ tx_dropped += txq->tx_dropped;
+ }
+
+ stats->tx_packets = tx_packets;
+ stats->tx_bytes = tx_bytes;
+ stats->tx_dropped = tx_dropped;
+
+ return stats;
+}
+
+static inline u32 mib_read(struct mv643xx_eth_private *mp, int offset)
+{
+ return rdl(mp, MIB_COUNTERS(mp->port_num) + offset);
+}
+
+static void mib_counters_clear(struct mv643xx_eth_private *mp)
+{
+ int i;
+
+ for (i = 0; i < 0x80; i += 4)
+ mib_read(mp, i);
+
+ /* Clear non MIB hw counters also */
+ rdlp(mp, RX_DISCARD_FRAME_CNT);
+ rdlp(mp, RX_OVERRUN_FRAME_CNT);
+}
+
+static void mib_counters_update(struct mv643xx_eth_private *mp)
+{
+ struct mib_counters *p = &mp->mib_counters;
+
+ spin_lock_bh(&mp->mib_counters_lock);
+ p->good_octets_received += mib_read(mp, 0x00);
+ p->bad_octets_received += mib_read(mp, 0x08);
+ p->internal_mac_transmit_err += mib_read(mp, 0x0c);
+ p->good_frames_received += mib_read(mp, 0x10);
+ p->bad_frames_received += mib_read(mp, 0x14);
+ p->broadcast_frames_received += mib_read(mp, 0x18);
+ p->multicast_frames_received += mib_read(mp, 0x1c);
+ p->frames_64_octets += mib_read(mp, 0x20);
+ p->frames_65_to_127_octets += mib_read(mp, 0x24);
+ p->frames_128_to_255_octets += mib_read(mp, 0x28);
+ p->frames_256_to_511_octets += mib_read(mp, 0x2c);
+ p->frames_512_to_1023_octets += mib_read(mp, 0x30);
+ p->frames_1024_to_max_octets += mib_read(mp, 0x34);
+ p->good_octets_sent += mib_read(mp, 0x38);
+ p->good_frames_sent += mib_read(mp, 0x40);
+ p->excessive_collision += mib_read(mp, 0x44);
+ p->multicast_frames_sent += mib_read(mp, 0x48);
+ p->broadcast_frames_sent += mib_read(mp, 0x4c);
+ p->unrec_mac_control_received += mib_read(mp, 0x50);
+ p->fc_sent += mib_read(mp, 0x54);
+ p->good_fc_received += mib_read(mp, 0x58);
+ p->bad_fc_received += mib_read(mp, 0x5c);
+ p->undersize_received += mib_read(mp, 0x60);
+ p->fragments_received += mib_read(mp, 0x64);
+ p->oversize_received += mib_read(mp, 0x68);
+ p->jabber_received += mib_read(mp, 0x6c);
+ p->mac_receive_error += mib_read(mp, 0x70);
+ p->bad_crc_event += mib_read(mp, 0x74);
+ p->collision += mib_read(mp, 0x78);
+ p->late_collision += mib_read(mp, 0x7c);
+ /* Non MIB hardware counters */
+ p->rx_discard += rdlp(mp, RX_DISCARD_FRAME_CNT);
+ p->rx_overrun += rdlp(mp, RX_OVERRUN_FRAME_CNT);
+ spin_unlock_bh(&mp->mib_counters_lock);
+}
+
+static void mib_counters_timer_wrapper(unsigned long _mp)
+{
+ struct mv643xx_eth_private *mp = (void *)_mp;
+ mib_counters_update(mp);
+ mod_timer(&mp->mib_counters_timer, jiffies + 30 * HZ);
+}
+
+
+/* interrupt coalescing *****************************************************/
+/*
+ * Hardware coalescing parameters are set in units of 64 t_clk
+ * cycles. I.e.:
+ *
+ * coal_delay_in_usec = 64000000 * register_value / t_clk_rate
+ *
+ * register_value = coal_delay_in_usec * t_clk_rate / 64000000
+ *
+ * In the ->set*() methods, we round the computed register value
+ * to the nearest integer.
+ */
+static unsigned int get_rx_coal(struct mv643xx_eth_private *mp)
+{
+ u32 val = rdlp(mp, SDMA_CONFIG);
+ u64 temp;
+
+ if (mp->shared->extended_rx_coal_limit)
+ temp = ((val & 0x02000000) >> 10) | ((val & 0x003fff80) >> 7);
+ else
+ temp = (val & 0x003fff00) >> 8;
+
+ temp *= 64000000;
+ do_div(temp, mp->t_clk);
+
+ return (unsigned int)temp;
+}
+
+static void set_rx_coal(struct mv643xx_eth_private *mp, unsigned int usec)
+{
+ u64 temp;
+ u32 val;
+
+ temp = (u64)usec * mp->t_clk;
+ temp += 31999999;
+ do_div(temp, 64000000);
+
+ val = rdlp(mp, SDMA_CONFIG);
+ if (mp->shared->extended_rx_coal_limit) {
+ if (temp > 0xffff)
+ temp = 0xffff;
+ val &= ~0x023fff80;
+ val |= (temp & 0x8000) << 10;
+ val |= (temp & 0x7fff) << 7;
+ } else {
+ if (temp > 0x3fff)
+ temp = 0x3fff;
+ val &= ~0x003fff00;
+ val |= (temp & 0x3fff) << 8;
+ }
+ wrlp(mp, SDMA_CONFIG, val);
+}
+
+static unsigned int get_tx_coal(struct mv643xx_eth_private *mp)
+{
+ u64 temp;
+
+ temp = (rdlp(mp, TX_FIFO_URGENT_THRESHOLD) & 0x3fff0) >> 4;
+ temp *= 64000000;
+ do_div(temp, mp->t_clk);
+
+ return (unsigned int)temp;
+}
+
+static void set_tx_coal(struct mv643xx_eth_private *mp, unsigned int usec)
+{
+ u64 temp;
+
+ temp = (u64)usec * mp->t_clk;
+ temp += 31999999;
+ do_div(temp, 64000000);
+
+ if (temp > 0x3fff)
+ temp = 0x3fff;
+
+ wrlp(mp, TX_FIFO_URGENT_THRESHOLD, temp << 4);
+}
+
+
+/* ethtool ******************************************************************/
+struct mv643xx_eth_stats {
+ char stat_string[ETH_GSTRING_LEN];
+ int sizeof_stat;
+ int netdev_off;
+ int mp_off;
+};
+
+#define SSTAT(m) \
+ { #m, FIELD_SIZEOF(struct net_device_stats, m), \
+ offsetof(struct net_device, stats.m), -1 }
+
+#define MIBSTAT(m) \
+ { #m, FIELD_SIZEOF(struct mib_counters, m), \
+ -1, offsetof(struct mv643xx_eth_private, mib_counters.m) }
+
+static const struct mv643xx_eth_stats mv643xx_eth_stats[] = {
+ SSTAT(rx_packets),
+ SSTAT(tx_packets),
+ SSTAT(rx_bytes),
+ SSTAT(tx_bytes),
+ SSTAT(rx_errors),
+ SSTAT(tx_errors),
+ SSTAT(rx_dropped),
+ SSTAT(tx_dropped),
+ MIBSTAT(good_octets_received),
+ MIBSTAT(bad_octets_received),
+ MIBSTAT(internal_mac_transmit_err),
+ MIBSTAT(good_frames_received),
+ MIBSTAT(bad_frames_received),
+ MIBSTAT(broadcast_frames_received),
+ MIBSTAT(multicast_frames_received),
+ MIBSTAT(frames_64_octets),
+ MIBSTAT(frames_65_to_127_octets),
+ MIBSTAT(frames_128_to_255_octets),
+ MIBSTAT(frames_256_to_511_octets),
+ MIBSTAT(frames_512_to_1023_octets),
+ MIBSTAT(frames_1024_to_max_octets),
+ MIBSTAT(good_octets_sent),
+ MIBSTAT(good_frames_sent),
+ MIBSTAT(excessive_collision),
+ MIBSTAT(multicast_frames_sent),
+ MIBSTAT(broadcast_frames_sent),
+ MIBSTAT(unrec_mac_control_received),
+ MIBSTAT(fc_sent),
+ MIBSTAT(good_fc_received),
+ MIBSTAT(bad_fc_received),
+ MIBSTAT(undersize_received),
+ MIBSTAT(fragments_received),
+ MIBSTAT(oversize_received),
+ MIBSTAT(jabber_received),
+ MIBSTAT(mac_receive_error),
+ MIBSTAT(bad_crc_event),
+ MIBSTAT(collision),
+ MIBSTAT(late_collision),
+ MIBSTAT(rx_discard),
+ MIBSTAT(rx_overrun),
+};
+
+static int
+mv643xx_eth_get_settings_phy(struct mv643xx_eth_private *mp,
+ struct ethtool_cmd *cmd)
+{
+ int err;
+
+ err = phy_read_status(mp->phy);
+ if (err == 0)
+ err = phy_ethtool_gset(mp->phy, cmd);
+
+ /*
+ * The MAC does not support 1000baseT_Half.
+ */
+ cmd->supported &= ~SUPPORTED_1000baseT_Half;
+ cmd->advertising &= ~ADVERTISED_1000baseT_Half;
+
+ return err;
+}
+
+static int
+mv643xx_eth_get_settings_phyless(struct mv643xx_eth_private *mp,
+ struct ethtool_cmd *cmd)
+{
+ u32 port_status;
+
+ port_status = rdlp(mp, PORT_STATUS);
+
+ cmd->supported = SUPPORTED_MII;
+ cmd->advertising = ADVERTISED_MII;
+ switch (port_status & PORT_SPEED_MASK) {
+ case PORT_SPEED_10:
+ ethtool_cmd_speed_set(cmd, SPEED_10);
+ break;
+ case PORT_SPEED_100:
+ ethtool_cmd_speed_set(cmd, SPEED_100);
+ break;
+ case PORT_SPEED_1000:
+ ethtool_cmd_speed_set(cmd, SPEED_1000);
+ break;
+ default:
+ cmd->speed = -1;
+ break;
+ }
+ cmd->duplex = (port_status & FULL_DUPLEX) ? DUPLEX_FULL : DUPLEX_HALF;
+ cmd->port = PORT_MII;
+ cmd->phy_address = 0;
+ cmd->transceiver = XCVR_INTERNAL;
+ cmd->autoneg = AUTONEG_DISABLE;
+ cmd->maxtxpkt = 1;
+ cmd->maxrxpkt = 1;
+
+ return 0;
+}
+
+static void
+mv643xx_eth_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
+{
+ struct mv643xx_eth_private *mp = netdev_priv(dev);
+ wol->supported = 0;
+ wol->wolopts = 0;
+ if (mp->phy)
+ phy_ethtool_get_wol(mp->phy, wol);
+}
+
+static int
+mv643xx_eth_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
+{
+ struct mv643xx_eth_private *mp = netdev_priv(dev);
+ int err;
+
+ if (mp->phy == NULL)
+ return -EOPNOTSUPP;
+
+ err = phy_ethtool_set_wol(mp->phy, wol);
+ /* Given that mv643xx_eth works without the marvell-specific PHY driver,
+ * this debugging hint is useful to have.
+ */
+ if (err == -EOPNOTSUPP)
+ netdev_info(dev, "The PHY does not support set_wol, was CONFIG_MARVELL_PHY enabled?\n");
+ return err;
+}
+
+static int
+mv643xx_eth_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
+{
+ struct mv643xx_eth_private *mp = netdev_priv(dev);
+
+ if (mp->phy != NULL)
+ return mv643xx_eth_get_settings_phy(mp, cmd);
+ else
+ return mv643xx_eth_get_settings_phyless(mp, cmd);
+}
+
+static int
+mv643xx_eth_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
+{
+ struct mv643xx_eth_private *mp = netdev_priv(dev);
+ int ret;
+
+ if (mp->phy == NULL)
+ return -EINVAL;
+
+ /*
+ * The MAC does not support 1000baseT_Half.
+ */
+ cmd->advertising &= ~ADVERTISED_1000baseT_Half;
+
+ ret = phy_ethtool_sset(mp->phy, cmd);
+ if (!ret)
+ mv643xx_eth_adjust_link(dev);
+ return ret;
+}
+
+static void mv643xx_eth_get_drvinfo(struct net_device *dev,
+ struct ethtool_drvinfo *drvinfo)
+{
+ strlcpy(drvinfo->driver, mv643xx_eth_driver_name,
+ sizeof(drvinfo->driver));
+ strlcpy(drvinfo->version, mv643xx_eth_driver_version,
+ sizeof(drvinfo->version));
+ strlcpy(drvinfo->fw_version, "N/A", sizeof(drvinfo->fw_version));
+ strlcpy(drvinfo->bus_info, "platform", sizeof(drvinfo->bus_info));
+ drvinfo->n_stats = ARRAY_SIZE(mv643xx_eth_stats);
+}
+
+static int mv643xx_eth_nway_reset(struct net_device *dev)
+{
+ struct mv643xx_eth_private *mp = netdev_priv(dev);
+
+ if (mp->phy == NULL)
+ return -EINVAL;
+
+ return genphy_restart_aneg(mp->phy);
+}
+
+static int
+mv643xx_eth_get_coalesce(struct net_device *dev, struct ethtool_coalesce *ec)
+{
+ struct mv643xx_eth_private *mp = netdev_priv(dev);
+
+ ec->rx_coalesce_usecs = get_rx_coal(mp);
+ ec->tx_coalesce_usecs = get_tx_coal(mp);
+
+ return 0;
+}
+
+static int
+mv643xx_eth_set_coalesce(struct net_device *dev, struct ethtool_coalesce *ec)
+{
+ struct mv643xx_eth_private *mp = netdev_priv(dev);
+
+ set_rx_coal(mp, ec->rx_coalesce_usecs);
+ set_tx_coal(mp, ec->tx_coalesce_usecs);
+
+ return 0;
+}
+
+static void
+mv643xx_eth_get_ringparam(struct net_device *dev, struct ethtool_ringparam *er)
+{
+ struct mv643xx_eth_private *mp = netdev_priv(dev);
+
+ er->rx_max_pending = 4096;
+ er->tx_max_pending = 4096;
+
+ er->rx_pending = mp->rx_ring_size;
+ er->tx_pending = mp->tx_ring_size;
+}
+
+static int
+mv643xx_eth_set_ringparam(struct net_device *dev, struct ethtool_ringparam *er)
+{
+ struct mv643xx_eth_private *mp = netdev_priv(dev);
+
+ if (er->rx_mini_pending || er->rx_jumbo_pending)
+ return -EINVAL;
+
+ mp->rx_ring_size = er->rx_pending < 4096 ? er->rx_pending : 4096;
+ mp->tx_ring_size = clamp_t(unsigned int, er->tx_pending,
+ MV643XX_MAX_SKB_DESCS * 2, 4096);
+ if (mp->tx_ring_size != er->tx_pending)
+ netdev_warn(dev, "TX queue size set to %u (requested %u)\n",
+ mp->tx_ring_size, er->tx_pending);
+
+ if (netif_running(dev)) {
+ mv643xx_eth_stop(dev);
+ if (mv643xx_eth_open(dev)) {
+ netdev_err(dev,
+ "fatal error on re-opening device after ring param change\n");
+ return -ENOMEM;
+ }
+ }
+
+ return 0;
+}
+
+
+static int
+mv643xx_eth_set_features(struct net_device *dev, netdev_features_t features)
+{
+ struct mv643xx_eth_private *mp = netdev_priv(dev);
+ bool rx_csum = features & NETIF_F_RXCSUM;
+
+ wrlp(mp, PORT_CONFIG, rx_csum ? 0x02000000 : 0x00000000);
+
+ return 0;
+}
+
+static void mv643xx_eth_get_strings(struct net_device *dev,
+ uint32_t stringset, uint8_t *data)
+{
+ int i;
+
+ if (stringset == ETH_SS_STATS) {
+ for (i = 0; i < ARRAY_SIZE(mv643xx_eth_stats); i++) {
+ memcpy(data + i * ETH_GSTRING_LEN,
+ mv643xx_eth_stats[i].stat_string,
+ ETH_GSTRING_LEN);
+ }
+ }
+}
+
+static void mv643xx_eth_get_ethtool_stats(struct net_device *dev,
+ struct ethtool_stats *stats,
+ uint64_t *data)
+{
+ struct mv643xx_eth_private *mp = netdev_priv(dev);
+ int i;
+
+ mv643xx_eth_get_stats(dev);
+ mib_counters_update(mp);
+
+ for (i = 0; i < ARRAY_SIZE(mv643xx_eth_stats); i++) {
+ const struct mv643xx_eth_stats *stat;
+ void *p;
+
+ stat = mv643xx_eth_stats + i;
+
+ if (stat->netdev_off >= 0)
+ p = ((void *)mp->dev) + stat->netdev_off;
+ else
+ p = ((void *)mp) + stat->mp_off;
+
+ data[i] = (stat->sizeof_stat == 8) ?
+ *(uint64_t *)p : *(uint32_t *)p;
+ }
+}
+
+static int mv643xx_eth_get_sset_count(struct net_device *dev, int sset)
+{
+ if (sset == ETH_SS_STATS)
+ return ARRAY_SIZE(mv643xx_eth_stats);
+
+ return -EOPNOTSUPP;
+}
+
+static const struct ethtool_ops mv643xx_eth_ethtool_ops = {
+ .get_settings = mv643xx_eth_get_settings,
+ .set_settings = mv643xx_eth_set_settings,
+ .get_drvinfo = mv643xx_eth_get_drvinfo,
+ .nway_reset = mv643xx_eth_nway_reset,
+ .get_link = ethtool_op_get_link,
+ .get_coalesce = mv643xx_eth_get_coalesce,
+ .set_coalesce = mv643xx_eth_set_coalesce,
+ .get_ringparam = mv643xx_eth_get_ringparam,
+ .set_ringparam = mv643xx_eth_set_ringparam,
+ .get_strings = mv643xx_eth_get_strings,
+ .get_ethtool_stats = mv643xx_eth_get_ethtool_stats,
+ .get_sset_count = mv643xx_eth_get_sset_count,
+ .get_ts_info = ethtool_op_get_ts_info,
+ .get_wol = mv643xx_eth_get_wol,
+ .set_wol = mv643xx_eth_set_wol,
+};
+
+
+/* address handling *********************************************************/
+static void uc_addr_get(struct mv643xx_eth_private *mp, unsigned char *addr)
+{
+ unsigned int mac_h = rdlp(mp, MAC_ADDR_HIGH);
+ unsigned int mac_l = rdlp(mp, MAC_ADDR_LOW);
+
+ addr[0] = (mac_h >> 24) & 0xff;
+ addr[1] = (mac_h >> 16) & 0xff;
+ addr[2] = (mac_h >> 8) & 0xff;
+ addr[3] = mac_h & 0xff;
+ addr[4] = (mac_l >> 8) & 0xff;
+ addr[5] = mac_l & 0xff;
+}
+
+static void uc_addr_set(struct mv643xx_eth_private *mp, unsigned char *addr)
+{
+ wrlp(mp, MAC_ADDR_HIGH,
+ (addr[0] << 24) | (addr[1] << 16) | (addr[2] << 8) | addr[3]);
+ wrlp(mp, MAC_ADDR_LOW, (addr[4] << 8) | addr[5]);
+}
+
+static u32 uc_addr_filter_mask(struct net_device *dev)
+{
+ struct netdev_hw_addr *ha;
+ u32 nibbles;
+
+ if (dev->flags & IFF_PROMISC)
+ return 0;
+
+ nibbles = 1 << (dev->dev_addr[5] & 0x0f);
+ netdev_for_each_uc_addr(ha, dev) {
+ if (memcmp(dev->dev_addr, ha->addr, 5))
+ return 0;
+ if ((dev->dev_addr[5] ^ ha->addr[5]) & 0xf0)
+ return 0;
+
+ nibbles |= 1 << (ha->addr[5] & 0x0f);
+ }
+
+ return nibbles;
+}
+
+static void mv643xx_eth_program_unicast_filter(struct net_device *dev)
+{
+ struct mv643xx_eth_private *mp = netdev_priv(dev);
+ u32 port_config;
+ u32 nibbles;
+ int i;
+
+ uc_addr_set(mp, dev->dev_addr);
+
+ port_config = rdlp(mp, PORT_CONFIG) & ~UNICAST_PROMISCUOUS_MODE;
+
+ nibbles = uc_addr_filter_mask(dev);
+ if (!nibbles) {
+ port_config |= UNICAST_PROMISCUOUS_MODE;
+ nibbles = 0xffff;
+ }
+
+ for (i = 0; i < 16; i += 4) {
+ int off = UNICAST_TABLE(mp->port_num) + i;
+ u32 v;
+
+ v = 0;
+ if (nibbles & 1)
+ v |= 0x00000001;
+ if (nibbles & 2)
+ v |= 0x00000100;
+ if (nibbles & 4)
+ v |= 0x00010000;
+ if (nibbles & 8)
+ v |= 0x01000000;
+ nibbles >>= 4;
+
+ wrl(mp, off, v);
+ }
+
+ wrlp(mp, PORT_CONFIG, port_config);
+}
+
+static int addr_crc(unsigned char *addr)
+{
+ int crc = 0;
+ int i;
+
+ for (i = 0; i < 6; i++) {
+ int j;
+
+ crc = (crc ^ addr[i]) << 8;
+ for (j = 7; j >= 0; j--) {
+ if (crc & (0x100 << j))
+ crc ^= 0x107 << j;
+ }
+ }
+
+ return crc;
+}
+
+static void mv643xx_eth_program_multicast_filter(struct net_device *dev)
+{
+ struct mv643xx_eth_private *mp = netdev_priv(dev);
+ u32 *mc_spec;
+ u32 *mc_other;
+ struct netdev_hw_addr *ha;
+ int i;
+
+ if (dev->flags & (IFF_PROMISC | IFF_ALLMULTI)) {
+ int port_num;
+ u32 accept;
+
+oom:
+ port_num = mp->port_num;
+ accept = 0x01010101;
+ for (i = 0; i < 0x100; i += 4) {
+ wrl(mp, SPECIAL_MCAST_TABLE(port_num) + i, accept);
+ wrl(mp, OTHER_MCAST_TABLE(port_num) + i, accept);
+ }
+ return;
+ }
+
+ mc_spec = kmalloc(0x200, GFP_ATOMIC);
+ if (mc_spec == NULL)
+ goto oom;
+ mc_other = mc_spec + (0x100 >> 2);
+
+ memset(mc_spec, 0, 0x100);
+ memset(mc_other, 0, 0x100);
+
+ netdev_for_each_mc_addr(ha, dev) {
+ u8 *a = ha->addr;
+ u32 *table;
+ int entry;
+
+ if (memcmp(a, "\x01\x00\x5e\x00\x00", 5) == 0) {
+ table = mc_spec;
+ entry = a[5];
+ } else {
+ table = mc_other;
+ entry = addr_crc(a);
+ }
+
+ table[entry >> 2] |= 1 << (8 * (entry & 3));
+ }
+
+ for (i = 0; i < 0x100; i += 4) {
+ wrl(mp, SPECIAL_MCAST_TABLE(mp->port_num) + i, mc_spec[i >> 2]);
+ wrl(mp, OTHER_MCAST_TABLE(mp->port_num) + i, mc_other[i >> 2]);
+ }
+
+ kfree(mc_spec);
+}
+
+static void mv643xx_eth_set_rx_mode(struct net_device *dev)
+{
+ mv643xx_eth_program_unicast_filter(dev);
+ mv643xx_eth_program_multicast_filter(dev);
+}
+
+static int mv643xx_eth_set_mac_address(struct net_device *dev, void *addr)
+{
+ struct sockaddr *sa = addr;
+
+ if (!is_valid_ether_addr(sa->sa_data))
+ return -EADDRNOTAVAIL;
+
+ memcpy(dev->dev_addr, sa->sa_data, ETH_ALEN);
+
+ netif_addr_lock_bh(dev);
+ mv643xx_eth_program_unicast_filter(dev);
+ netif_addr_unlock_bh(dev);
+
+ return 0;
+}
+
+
+/* rx/tx queue initialisation ***********************************************/
+static int rxq_init(struct mv643xx_eth_private *mp, int index)
+{
+ struct rx_queue *rxq = mp->rxq + index;
+ struct rx_desc *rx_desc;
+ int size;
+ int i;
+
+ rxq->index = index;
+
+ rxq->rx_ring_size = mp->rx_ring_size;
+
+ rxq->rx_desc_count = 0;
+ rxq->rx_curr_desc = 0;
+ rxq->rx_used_desc = 0;
+
+ size = rxq->rx_ring_size * sizeof(struct rx_desc);
+
+ if (index == 0 && size <= mp->rx_desc_sram_size) {
+ rxq->rx_desc_area = ioremap(mp->rx_desc_sram_addr,
+ mp->rx_desc_sram_size);
+ rxq->rx_desc_dma = mp->rx_desc_sram_addr;
+ } else {
+ rxq->rx_desc_area = dma_alloc_coherent(mp->dev->dev.parent,
+ size, &rxq->rx_desc_dma,
+ GFP_KERNEL);
+ }
+
+ if (rxq->rx_desc_area == NULL) {
+ netdev_err(mp->dev,
+ "can't allocate rx ring (%d bytes)\n", size);
+ goto out;
+ }
+ memset(rxq->rx_desc_area, 0, size);
+
+ rxq->rx_desc_area_size = size;
+ rxq->rx_skb = kcalloc(rxq->rx_ring_size, sizeof(*rxq->rx_skb),
+ GFP_KERNEL);
+ if (rxq->rx_skb == NULL)
+ goto out_free;
+
+ rx_desc = rxq->rx_desc_area;
+ for (i = 0; i < rxq->rx_ring_size; i++) {
+ int nexti;
+
+ nexti = i + 1;
+ if (nexti == rxq->rx_ring_size)
+ nexti = 0;
+
+ rx_desc[i].next_desc_ptr = rxq->rx_desc_dma +
+ nexti * sizeof(struct rx_desc);
+ }
+
+ return 0;
+
+
+out_free:
+ if (index == 0 && size <= mp->rx_desc_sram_size)
+ iounmap(rxq->rx_desc_area);
+ else
+ dma_free_coherent(mp->dev->dev.parent, size,
+ rxq->rx_desc_area,
+ rxq->rx_desc_dma);
+
+out:
+ return -ENOMEM;
+}
+
+static void rxq_deinit(struct rx_queue *rxq)
+{
+ struct mv643xx_eth_private *mp = rxq_to_mp(rxq);
+ int i;
+
+ rxq_disable(rxq);
+
+ for (i = 0; i < rxq->rx_ring_size; i++) {
+ if (rxq->rx_skb[i]) {
+ dev_kfree_skb(rxq->rx_skb[i]);
+ rxq->rx_desc_count--;
+ }
+ }
+
+ if (rxq->rx_desc_count) {
+ netdev_err(mp->dev, "error freeing rx ring -- %d skbs stuck\n",
+ rxq->rx_desc_count);
+ }
+
+ if (rxq->index == 0 &&
+ rxq->rx_desc_area_size <= mp->rx_desc_sram_size)
+ iounmap(rxq->rx_desc_area);
+ else
+ dma_free_coherent(mp->dev->dev.parent, rxq->rx_desc_area_size,
+ rxq->rx_desc_area, rxq->rx_desc_dma);
+
+ kfree(rxq->rx_skb);
+}
+
+static int txq_init(struct mv643xx_eth_private *mp, int index)
+{
+ struct tx_queue *txq = mp->txq + index;
+ struct tx_desc *tx_desc;
+ int size;
+ int ret;
+ int i;
+
+ txq->index = index;
+
+ txq->tx_ring_size = mp->tx_ring_size;
+
+ /* A queue must always have room for at least one skb.
+ * Therefore, stop the queue when the free entries reaches
+ * the maximum number of descriptors per skb.
+ */
+ txq->tx_stop_threshold = txq->tx_ring_size - MV643XX_MAX_SKB_DESCS;
+ txq->tx_wake_threshold = txq->tx_stop_threshold / 2;
+
+ txq->tx_desc_count = 0;
+ txq->tx_curr_desc = 0;
+ txq->tx_used_desc = 0;
+
+ size = txq->tx_ring_size * sizeof(struct tx_desc);
+
+ if (index == 0 && size <= mp->tx_desc_sram_size) {
+ txq->tx_desc_area = ioremap(mp->tx_desc_sram_addr,
+ mp->tx_desc_sram_size);
+ txq->tx_desc_dma = mp->tx_desc_sram_addr;
+ } else {
+ txq->tx_desc_area = dma_alloc_coherent(mp->dev->dev.parent,
+ size, &txq->tx_desc_dma,
+ GFP_KERNEL);
+ }
+
+ if (txq->tx_desc_area == NULL) {
+ netdev_err(mp->dev,
+ "can't allocate tx ring (%d bytes)\n", size);
+ return -ENOMEM;
+ }
+ memset(txq->tx_desc_area, 0, size);
+
+ txq->tx_desc_area_size = size;
+
+ tx_desc = txq->tx_desc_area;
+ for (i = 0; i < txq->tx_ring_size; i++) {
+ struct tx_desc *txd = tx_desc + i;
+ int nexti;
+
+ nexti = i + 1;
+ if (nexti == txq->tx_ring_size)
+ nexti = 0;
+
+ txd->cmd_sts = 0;
+ txd->next_desc_ptr = txq->tx_desc_dma +
+ nexti * sizeof(struct tx_desc);
+ }
+
+ txq->tx_desc_mapping = kcalloc(txq->tx_ring_size, sizeof(char),
+ GFP_KERNEL);
+ if (!txq->tx_desc_mapping) {
+ ret = -ENOMEM;
+ goto err_free_desc_area;
+ }
+
+ /* Allocate DMA buffers for TSO MAC/IP/TCP headers */
+ txq->tso_hdrs = dma_alloc_coherent(mp->dev->dev.parent,
+ txq->tx_ring_size * TSO_HEADER_SIZE,
+ &txq->tso_hdrs_dma, GFP_KERNEL);
+ if (txq->tso_hdrs == NULL) {
+ ret = -ENOMEM;
+ goto err_free_desc_mapping;
+ }
+ skb_queue_head_init(&txq->tx_skb);
+
+ return 0;
+
+err_free_desc_mapping:
+ kfree(txq->tx_desc_mapping);
+err_free_desc_area:
+ if (index == 0 && size <= mp->tx_desc_sram_size)
+ iounmap(txq->tx_desc_area);
+ else
+ dma_free_coherent(mp->dev->dev.parent, txq->tx_desc_area_size,
+ txq->tx_desc_area, txq->tx_desc_dma);
+ return ret;
+}
+
+static void txq_deinit(struct tx_queue *txq)
+{
+ struct mv643xx_eth_private *mp = txq_to_mp(txq);
+
+ txq_disable(txq);
+ txq_reclaim(txq, txq->tx_ring_size, 1);
+
+ BUG_ON(txq->tx_used_desc != txq->tx_curr_desc);
+
+ if (txq->index == 0 &&
+ txq->tx_desc_area_size <= mp->tx_desc_sram_size)
+ iounmap(txq->tx_desc_area);
+ else
+ dma_free_coherent(mp->dev->dev.parent, txq->tx_desc_area_size,
+ txq->tx_desc_area, txq->tx_desc_dma);
+ kfree(txq->tx_desc_mapping);
+
+ if (txq->tso_hdrs)
+ dma_free_coherent(mp->dev->dev.parent,
+ txq->tx_ring_size * TSO_HEADER_SIZE,
+ txq->tso_hdrs, txq->tso_hdrs_dma);
+}
+
+
+/* netdev ops and related ***************************************************/
+static int mv643xx_eth_collect_events(struct mv643xx_eth_private *mp)
+{
+ u32 int_cause;
+ u32 int_cause_ext;
+
+ int_cause = rdlp(mp, INT_CAUSE) & mp->int_mask;
+ if (int_cause == 0)
+ return 0;
+
+ int_cause_ext = 0;
+ if (int_cause & INT_EXT) {
+ int_cause &= ~INT_EXT;
+ int_cause_ext = rdlp(mp, INT_CAUSE_EXT);
+ }
+
+ if (int_cause) {
+ wrlp(mp, INT_CAUSE, ~int_cause);
+ mp->work_tx_end |= ((int_cause & INT_TX_END) >> 19) &
+ ~(rdlp(mp, TXQ_COMMAND) & 0xff);
+ mp->work_rx |= (int_cause & INT_RX) >> 2;
+ }
+
+ int_cause_ext &= INT_EXT_LINK_PHY | INT_EXT_TX;
+ if (int_cause_ext) {
+ wrlp(mp, INT_CAUSE_EXT, ~int_cause_ext);
+ if (int_cause_ext & INT_EXT_LINK_PHY)
+ mp->work_link = 1;
+ mp->work_tx |= int_cause_ext & INT_EXT_TX;
+ }
+
+ return 1;
+}
+
+static irqreturn_t mv643xx_eth_irq(int irq, void *dev_id)
+{
+ struct net_device *dev = (struct net_device *)dev_id;
+ struct mv643xx_eth_private *mp = netdev_priv(dev);
+
+ if (unlikely(!mv643xx_eth_collect_events(mp)))
+ return IRQ_NONE;
+
+ wrlp(mp, INT_MASK, 0);
+ napi_schedule(&mp->napi);
+
+ return IRQ_HANDLED;
+}
+
+static void handle_link_event(struct mv643xx_eth_private *mp)
+{
+ struct net_device *dev = mp->dev;
+ u32 port_status;
+ int speed;
+ int duplex;
+ int fc;
+
+ port_status = rdlp(mp, PORT_STATUS);
+ if (!(port_status & LINK_UP)) {
+ if (netif_carrier_ok(dev)) {
+ int i;
+
+ netdev_info(dev, "link down\n");
+
+ netif_carrier_off(dev);
+
+ for (i = 0; i < mp->txq_count; i++) {
+ struct tx_queue *txq = mp->txq + i;
+
+ txq_reclaim(txq, txq->tx_ring_size, 1);
+ txq_reset_hw_ptr(txq);
+ }
+ }
+ return;
+ }
+
+ switch (port_status & PORT_SPEED_MASK) {
+ case PORT_SPEED_10:
+ speed = 10;
+ break;
+ case PORT_SPEED_100:
+ speed = 100;
+ break;
+ case PORT_SPEED_1000:
+ speed = 1000;
+ break;
+ default:
+ speed = -1;
+ break;
+ }
+ duplex = (port_status & FULL_DUPLEX) ? 1 : 0;
+ fc = (port_status & FLOW_CONTROL_ENABLED) ? 1 : 0;
+
+ netdev_info(dev, "link up, %d Mb/s, %s duplex, flow control %sabled\n",
+ speed, duplex ? "full" : "half", fc ? "en" : "dis");
+
+ if (!netif_carrier_ok(dev))
+ netif_carrier_on(dev);
+}
+
+static int mv643xx_eth_poll(struct napi_struct *napi, int budget)
+{
+ struct mv643xx_eth_private *mp;
+ int work_done;
+
+ mp = container_of(napi, struct mv643xx_eth_private, napi);
+
+ if (unlikely(mp->oom)) {
+ mp->oom = 0;
+ del_timer(&mp->rx_oom);
+ }
+
+ work_done = 0;
+ while (work_done < budget) {
+ u8 queue_mask;
+ int queue;
+ int work_tbd;
+
+ if (mp->work_link) {
+ mp->work_link = 0;
+ handle_link_event(mp);
+ work_done++;
+ continue;
+ }
+
+ queue_mask = mp->work_tx | mp->work_tx_end | mp->work_rx;
+ if (likely(!mp->oom))
+ queue_mask |= mp->work_rx_refill;
+
+ if (!queue_mask) {
+ if (mv643xx_eth_collect_events(mp))
+ continue;
+ break;
+ }
+
+ queue = fls(queue_mask) - 1;
+ queue_mask = 1 << queue;
+
+ work_tbd = budget - work_done;
+ if (work_tbd > 16)
+ work_tbd = 16;
+
+ if (mp->work_tx_end & queue_mask) {
+ txq_kick(mp->txq + queue);
+ } else if (mp->work_tx & queue_mask) {
+ work_done += txq_reclaim(mp->txq + queue, work_tbd, 0);
+ txq_maybe_wake(mp->txq + queue);
+ } else if (mp->work_rx & queue_mask) {
+ work_done += rxq_process(mp->rxq + queue, work_tbd);
+ } else if (!mp->oom && (mp->work_rx_refill & queue_mask)) {
+ work_done += rxq_refill(mp->rxq + queue, work_tbd);
+ } else {
+ BUG();
+ }
+ }
+
+ if (work_done < budget) {
+ if (mp->oom)
+ mod_timer(&mp->rx_oom, jiffies + (HZ / 10));
+ napi_complete(napi);
+ wrlp(mp, INT_MASK, mp->int_mask);
+ }
+
+ return work_done;
+}
+
+static inline void oom_timer_wrapper(unsigned long data)
+{
+ struct mv643xx_eth_private *mp = (void *)data;
+
+ napi_schedule(&mp->napi);
+}
+
+static void port_start(struct mv643xx_eth_private *mp)
+{
+ u32 pscr;
+ int i;
+
+ /*
+ * Perform PHY reset, if there is a PHY.
+ */
+ if (mp->phy != NULL) {
+ struct ethtool_cmd cmd;
+
+ mv643xx_eth_get_settings(mp->dev, &cmd);
+ phy_init_hw(mp->phy);
+ mv643xx_eth_set_settings(mp->dev, &cmd);
+ phy_start(mp->phy);
+ }
+
+ /*
+ * Configure basic link parameters.
+ */
+ pscr = rdlp(mp, PORT_SERIAL_CONTROL);
+
+ pscr |= SERIAL_PORT_ENABLE;
+ wrlp(mp, PORT_SERIAL_CONTROL, pscr);
+
+ pscr |= DO_NOT_FORCE_LINK_FAIL;
+ if (mp->phy == NULL)
+ pscr |= FORCE_LINK_PASS;
+ wrlp(mp, PORT_SERIAL_CONTROL, pscr);
+
+ /*
+ * Configure TX path and queues.
+ */
+ tx_set_rate(mp, 1000000000, 16777216);
+ for (i = 0; i < mp->txq_count; i++) {
+ struct tx_queue *txq = mp->txq + i;
+
+ txq_reset_hw_ptr(txq);
+ txq_set_rate(txq, 1000000000, 16777216);
+ txq_set_fixed_prio_mode(txq);
+ }
+
+ /*
+ * Receive all unmatched unicast, TCP, UDP, BPDU and broadcast
+ * frames to RX queue #0, and include the pseudo-header when
+ * calculating receive checksums.
+ */
+ mv643xx_eth_set_features(mp->dev, mp->dev->features);
+
+ /*
+ * Treat BPDUs as normal multicasts, and disable partition mode.
+ */
+ wrlp(mp, PORT_CONFIG_EXT, 0x00000000);
+
+ /*
+ * Add configured unicast addresses to address filter table.
+ */
+ mv643xx_eth_program_unicast_filter(mp->dev);
+
+ /*
+ * Enable the receive queues.
+ */
+ for (i = 0; i < mp->rxq_count; i++) {
+ struct rx_queue *rxq = mp->rxq + i;
+ u32 addr;
+
+ addr = (u32)rxq->rx_desc_dma;
+ addr += rxq->rx_curr_desc * sizeof(struct rx_desc);
+ wrlp(mp, RXQ_CURRENT_DESC_PTR(i), addr);
+
+ rxq_enable(rxq);
+ }
+}
+
+static void mv643xx_eth_recalc_skb_size(struct mv643xx_eth_private *mp)
+{
+ int skb_size;
+
+ /*
+ * Reserve 2+14 bytes for an ethernet header (the hardware
+ * automatically prepends 2 bytes of dummy data to each
+ * received packet), 16 bytes for up to four VLAN tags, and
+ * 4 bytes for the trailing FCS -- 36 bytes total.
+ */
+ skb_size = mp->dev->mtu + 36;
+
+ /*
+ * Make sure that the skb size is a multiple of 8 bytes, as
+ * the lower three bits of the receive descriptor's buffer
+ * size field are ignored by the hardware.
+ */
+ mp->skb_size = (skb_size + 7) & ~7;
+
+ /*
+ * If NET_SKB_PAD is smaller than a cache line,
+ * netdev_alloc_skb() will cause skb->data to be misaligned
+ * to a cache line boundary. If this is the case, include
+ * some extra space to allow re-aligning the data area.
+ */
+ mp->skb_size += SKB_DMA_REALIGN;
+}
+
+static int mv643xx_eth_open(struct net_device *dev)
+{
+ struct mv643xx_eth_private *mp = netdev_priv(dev);
+ int err;
+ int i;
+
+ wrlp(mp, INT_CAUSE, 0);
+ wrlp(mp, INT_CAUSE_EXT, 0);
+ rdlp(mp, INT_CAUSE_EXT);
+
+ err = request_irq(dev->irq, mv643xx_eth_irq,
+ IRQF_SHARED, dev->name, dev);
+ if (err) {
+ netdev_err(dev, "can't assign irq\n");
+ return -EAGAIN;
+ }
+
+ mv643xx_eth_recalc_skb_size(mp);
+
+ napi_enable(&mp->napi);
+
+ mp->int_mask = INT_EXT;
+
+ for (i = 0; i < mp->rxq_count; i++) {
+ err = rxq_init(mp, i);
+ if (err) {
+ while (--i >= 0)
+ rxq_deinit(mp->rxq + i);
+ goto out;
+ }
+
+ rxq_refill(mp->rxq + i, INT_MAX);
+ mp->int_mask |= INT_RX_0 << i;
+ }
+
+ if (mp->oom) {
+ mp->rx_oom.expires = jiffies + (HZ / 10);
+ add_timer(&mp->rx_oom);
+ }
+
+ for (i = 0; i < mp->txq_count; i++) {
+ err = txq_init(mp, i);
+ if (err) {
+ while (--i >= 0)
+ txq_deinit(mp->txq + i);
+ goto out_free;
+ }
+ mp->int_mask |= INT_TX_END_0 << i;
+ }
+
+ add_timer(&mp->mib_counters_timer);
+ port_start(mp);
+
+ wrlp(mp, INT_MASK_EXT, INT_EXT_LINK_PHY | INT_EXT_TX);
+ wrlp(mp, INT_MASK, mp->int_mask);
+
+ return 0;
+
+
+out_free:
+ for (i = 0; i < mp->rxq_count; i++)
+ rxq_deinit(mp->rxq + i);
+out:
+ free_irq(dev->irq, dev);
+
+ return err;
+}
+
+static void port_reset(struct mv643xx_eth_private *mp)
+{
+ unsigned int data;
+ int i;
+
+ for (i = 0; i < mp->rxq_count; i++)
+ rxq_disable(mp->rxq + i);
+ for (i = 0; i < mp->txq_count; i++)
+ txq_disable(mp->txq + i);
+
+ while (1) {
+ u32 ps = rdlp(mp, PORT_STATUS);
+
+ if ((ps & (TX_IN_PROGRESS | TX_FIFO_EMPTY)) == TX_FIFO_EMPTY)
+ break;
+ udelay(10);
+ }
+
+ /* Reset the Enable bit in the Configuration Register */
+ data = rdlp(mp, PORT_SERIAL_CONTROL);
+ data &= ~(SERIAL_PORT_ENABLE |
+ DO_NOT_FORCE_LINK_FAIL |
+ FORCE_LINK_PASS);
+ wrlp(mp, PORT_SERIAL_CONTROL, data);
+}
+
+static int mv643xx_eth_stop(struct net_device *dev)
+{
+ struct mv643xx_eth_private *mp = netdev_priv(dev);
+ int i;
+
+ wrlp(mp, INT_MASK_EXT, 0x00000000);
+ wrlp(mp, INT_MASK, 0x00000000);
+ rdlp(mp, INT_MASK);
+
+ napi_disable(&mp->napi);
+
+ del_timer_sync(&mp->rx_oom);
+
+ netif_carrier_off(dev);
+ if (mp->phy)
+ phy_stop(mp->phy);
+ free_irq(dev->irq, dev);
+
+ port_reset(mp);
+ mv643xx_eth_get_stats(dev);
+ mib_counters_update(mp);
+ del_timer_sync(&mp->mib_counters_timer);
+
+ for (i = 0; i < mp->rxq_count; i++)
+ rxq_deinit(mp->rxq + i);
+ for (i = 0; i < mp->txq_count; i++)
+ txq_deinit(mp->txq + i);
+
+ return 0;
+}
+
+static int mv643xx_eth_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
+{
+ struct mv643xx_eth_private *mp = netdev_priv(dev);
+ int ret;
+
+ if (mp->phy == NULL)
+ return -ENOTSUPP;
+
+ ret = phy_mii_ioctl(mp->phy, ifr, cmd);
+ if (!ret)
+ mv643xx_eth_adjust_link(dev);
+ return ret;
+}
+
+static int mv643xx_eth_change_mtu(struct net_device *dev, int new_mtu)
+{
+ struct mv643xx_eth_private *mp = netdev_priv(dev);
+
+ if (new_mtu < 64 || new_mtu > 9500)
+ return -EINVAL;
+
+ dev->mtu = new_mtu;
+ mv643xx_eth_recalc_skb_size(mp);
+ tx_set_rate(mp, 1000000000, 16777216);
+
+ if (!netif_running(dev))
+ return 0;
+
+ /*
+ * Stop and then re-open the interface. This will allocate RX
+ * skbs of the new MTU.
+ * There is a possible danger that the open will not succeed,
+ * due to memory being full.
+ */
+ mv643xx_eth_stop(dev);
+ if (mv643xx_eth_open(dev)) {
+ netdev_err(dev,
+ "fatal error on re-opening device after MTU change\n");
+ }
+
+ return 0;
+}
+
+static void tx_timeout_task(struct work_struct *ugly)
+{
+ struct mv643xx_eth_private *mp;
+
+ mp = container_of(ugly, struct mv643xx_eth_private, tx_timeout_task);
+ if (netif_running(mp->dev)) {
+ netif_tx_stop_all_queues(mp->dev);
+ port_reset(mp);
+ port_start(mp);
+ netif_tx_wake_all_queues(mp->dev);
+ }
+}
+
+static void mv643xx_eth_tx_timeout(struct net_device *dev)
+{
+ struct mv643xx_eth_private *mp = netdev_priv(dev);
+
+ netdev_info(dev, "tx timeout\n");
+
+ schedule_work(&mp->tx_timeout_task);
+}
+
+#ifdef CONFIG_NET_POLL_CONTROLLER
+static void mv643xx_eth_netpoll(struct net_device *dev)
+{
+ struct mv643xx_eth_private *mp = netdev_priv(dev);
+
+ wrlp(mp, INT_MASK, 0x00000000);
+ rdlp(mp, INT_MASK);
+
+ mv643xx_eth_irq(dev->irq, dev);
+
+ wrlp(mp, INT_MASK, mp->int_mask);
+}
+#endif
+
+
+/* platform glue ************************************************************/
+static void
+mv643xx_eth_conf_mbus_windows(struct mv643xx_eth_shared_private *msp,
+ const struct mbus_dram_target_info *dram)
+{
+ void __iomem *base = msp->base;
+ u32 win_enable;
+ u32 win_protect;
+ int i;
+
+ for (i = 0; i < 6; i++) {
+ writel(0, base + WINDOW_BASE(i));
+ writel(0, base + WINDOW_SIZE(i));
+ if (i < 4)
+ writel(0, base + WINDOW_REMAP_HIGH(i));
+ }
+
+ win_enable = 0x3f;
+ win_protect = 0;
+
+ for (i = 0; i < dram->num_cs; i++) {
+ const struct mbus_dram_window *cs = dram->cs + i;
+
+ writel((cs->base & 0xffff0000) |
+ (cs->mbus_attr << 8) |
+ dram->mbus_dram_target_id, base + WINDOW_BASE(i));
+ writel((cs->size - 1) & 0xffff0000, base + WINDOW_SIZE(i));
+
+ win_enable &= ~(1 << i);
+ win_protect |= 3 << (2 * i);
+ }
+
+ writel(win_enable, base + WINDOW_BAR_ENABLE);
+ msp->win_protect = win_protect;
+}
+
+static void infer_hw_params(struct mv643xx_eth_shared_private *msp)
+{
+ /*
+ * Check whether we have a 14-bit coal limit field in bits
+ * [21:8], or a 16-bit coal limit in bits [25,21:7] of the
+ * SDMA config register.
+ */
+ writel(0x02000000, msp->base + 0x0400 + SDMA_CONFIG);
+ if (readl(msp->base + 0x0400 + SDMA_CONFIG) & 0x02000000)
+ msp->extended_rx_coal_limit = 1;
+ else
+ msp->extended_rx_coal_limit = 0;
+
+ /*
+ * Check whether the MAC supports TX rate control, and if
+ * yes, whether its associated registers are in the old or
+ * the new place.
+ */
+ writel(1, msp->base + 0x0400 + TX_BW_MTU_MOVED);
+ if (readl(msp->base + 0x0400 + TX_BW_MTU_MOVED) & 1) {
+ msp->tx_bw_control = TX_BW_CONTROL_NEW_LAYOUT;
+ } else {
+ writel(7, msp->base + 0x0400 + TX_BW_RATE);
+ if (readl(msp->base + 0x0400 + TX_BW_RATE) & 7)
+ msp->tx_bw_control = TX_BW_CONTROL_OLD_LAYOUT;
+ else
+ msp->tx_bw_control = TX_BW_CONTROL_ABSENT;
+ }
+}
+
+#if defined(CONFIG_OF)
+static const struct of_device_id mv643xx_eth_shared_ids[] = {
+ { .compatible = "marvell,orion-eth", },
+ { .compatible = "marvell,kirkwood-eth", },
+ { }
+};
+MODULE_DEVICE_TABLE(of, mv643xx_eth_shared_ids);
+#endif
+
+#if defined(CONFIG_OF) && !defined(CONFIG_MV64X60)
+#define mv643xx_eth_property(_np, _name, _v) \
+ do { \
+ u32 tmp; \
+ if (!of_property_read_u32(_np, "marvell," _name, &tmp)) \
+ _v = tmp; \
+ } while (0)
+
+static struct platform_device *port_platdev[3];
+
+static int mv643xx_eth_shared_of_add_port(struct platform_device *pdev,
+ struct device_node *pnp)
+{
+ struct platform_device *ppdev;
+ struct mv643xx_eth_platform_data ppd;
+ struct resource res;
+ const char *mac_addr;
+ int ret;
+ int dev_num = 0;
+
+ memset(&ppd, 0, sizeof(ppd));
+ ppd.shared = pdev;
+
+ memset(&res, 0, sizeof(res));
+ if (!of_irq_to_resource(pnp, 0, &res)) {
+ dev_err(&pdev->dev, "missing interrupt on %s\n", pnp->name);
+ return -EINVAL;
+ }
+
+ if (of_property_read_u32(pnp, "reg", &ppd.port_number)) {
+ dev_err(&pdev->dev, "missing reg property on %s\n", pnp->name);
+ return -EINVAL;
+ }
+
+ if (ppd.port_number >= 3) {
+ dev_err(&pdev->dev, "invalid reg property on %s\n", pnp->name);
+ return -EINVAL;
+ }
+
+ while (dev_num < 3 && port_platdev[dev_num])
+ dev_num++;
+
+ if (dev_num == 3) {
+ dev_err(&pdev->dev, "too many ports registered\n");
+ return -EINVAL;
+ }
+
+ mac_addr = of_get_mac_address(pnp);
+ if (mac_addr)
+ memcpy(ppd.mac_addr, mac_addr, ETH_ALEN);
+
+ mv643xx_eth_property(pnp, "tx-queue-size", ppd.tx_queue_size);
+ mv643xx_eth_property(pnp, "tx-sram-addr", ppd.tx_sram_addr);
+ mv643xx_eth_property(pnp, "tx-sram-size", ppd.tx_sram_size);
+ mv643xx_eth_property(pnp, "rx-queue-size", ppd.rx_queue_size);
+ mv643xx_eth_property(pnp, "rx-sram-addr", ppd.rx_sram_addr);
+ mv643xx_eth_property(pnp, "rx-sram-size", ppd.rx_sram_size);
+
+ ppd.phy_node = of_parse_phandle(pnp, "phy-handle", 0);
+ if (!ppd.phy_node) {
+ ppd.phy_addr = MV643XX_ETH_PHY_NONE;
+ of_property_read_u32(pnp, "speed", &ppd.speed);
+ of_property_read_u32(pnp, "duplex", &ppd.duplex);
+ }
+
+ ppdev = platform_device_alloc(MV643XX_ETH_NAME, dev_num);
+ if (!ppdev)
+ return -ENOMEM;
+ ppdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
+ ppdev->dev.of_node = pnp;
+
+ ret = platform_device_add_resources(ppdev, &res, 1);
+ if (ret)
+ goto port_err;
+
+ ret = platform_device_add_data(ppdev, &ppd, sizeof(ppd));
+ if (ret)
+ goto port_err;
+
+ ret = platform_device_add(ppdev);
+ if (ret)
+ goto port_err;
+
+ port_platdev[dev_num] = ppdev;
+
+ return 0;
+
+port_err:
+ platform_device_put(ppdev);
+ return ret;
+}
+
+static int mv643xx_eth_shared_of_probe(struct platform_device *pdev)
+{
+ struct mv643xx_eth_shared_platform_data *pd;
+ struct device_node *pnp, *np = pdev->dev.of_node;
+ int ret;
+
+ /* bail out if not registered from DT */
+ if (!np)
+ return 0;
+
+ pd = devm_kzalloc(&pdev->dev, sizeof(*pd), GFP_KERNEL);
+ if (!pd)
+ return -ENOMEM;
+ pdev->dev.platform_data = pd;
+
+ mv643xx_eth_property(np, "tx-checksum-limit", pd->tx_csum_limit);
+
+ for_each_available_child_of_node(np, pnp) {
+ ret = mv643xx_eth_shared_of_add_port(pdev, pnp);
+ if (ret)
+ return ret;
+ }
+ return 0;
+}
+
+static void mv643xx_eth_shared_of_remove(void)
+{
+ int n;
+
+ for (n = 0; n < 3; n++) {
+ platform_device_del(port_platdev[n]);
+ port_platdev[n] = NULL;
+ }
+}
+#else
+static inline int mv643xx_eth_shared_of_probe(struct platform_device *pdev)
+{
+ return 0;
+}
+
+static inline void mv643xx_eth_shared_of_remove(void)
+{
+}
+#endif
+
+static int mv643xx_eth_shared_probe(struct platform_device *pdev)
+{
+ static int mv643xx_eth_version_printed;
+ struct mv643xx_eth_shared_platform_data *pd;
+ struct mv643xx_eth_shared_private *msp;
+ const struct mbus_dram_target_info *dram;
+ struct resource *res;
+ int ret;
+
+ if (!mv643xx_eth_version_printed++)
+ pr_notice("MV-643xx 10/100/1000 ethernet driver version %s\n",
+ mv643xx_eth_driver_version);
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (res == NULL)
+ return -EINVAL;
+
+ msp = devm_kzalloc(&pdev->dev, sizeof(*msp), GFP_KERNEL);
+ if (msp == NULL)
+ return -ENOMEM;
+ platform_set_drvdata(pdev, msp);
+
+ msp->base = devm_ioremap(&pdev->dev, res->start, resource_size(res));
+ if (msp->base == NULL)
+ return -ENOMEM;
+
+ msp->clk = devm_clk_get(&pdev->dev, NULL);
+ if (!IS_ERR(msp->clk))
+ clk_prepare_enable(msp->clk);
+
+ /*
+ * (Re-)program MBUS remapping windows if we are asked to.
+ */
+ dram = mv_mbus_dram_info();
+ if (dram)
+ mv643xx_eth_conf_mbus_windows(msp, dram);
+
+ ret = mv643xx_eth_shared_of_probe(pdev);
+ if (ret)
+ return ret;
+ pd = dev_get_platdata(&pdev->dev);
+
+ msp->tx_csum_limit = (pd != NULL && pd->tx_csum_limit) ?
+ pd->tx_csum_limit : 9 * 1024;
+ infer_hw_params(msp);
+
+ return 0;
+}
+
+static int mv643xx_eth_shared_remove(struct platform_device *pdev)
+{
+ struct mv643xx_eth_shared_private *msp = platform_get_drvdata(pdev);
+
+ mv643xx_eth_shared_of_remove();
+ if (!IS_ERR(msp->clk))
+ clk_disable_unprepare(msp->clk);
+ return 0;
+}
+
+static struct platform_driver mv643xx_eth_shared_driver = {
+ .probe = mv643xx_eth_shared_probe,
+ .remove = mv643xx_eth_shared_remove,
+ .driver = {
+ .name = MV643XX_ETH_SHARED_NAME,
+ .of_match_table = of_match_ptr(mv643xx_eth_shared_ids),
+ },
+};
+
+static void phy_addr_set(struct mv643xx_eth_private *mp, int phy_addr)
+{
+ int addr_shift = 5 * mp->port_num;
+ u32 data;
+
+ data = rdl(mp, PHY_ADDR);
+ data &= ~(0x1f << addr_shift);
+ data |= (phy_addr & 0x1f) << addr_shift;
+ wrl(mp, PHY_ADDR, data);
+}
+
+static int phy_addr_get(struct mv643xx_eth_private *mp)
+{
+ unsigned int data;
+
+ data = rdl(mp, PHY_ADDR);
+
+ return (data >> (5 * mp->port_num)) & 0x1f;
+}
+
+static void set_params(struct mv643xx_eth_private *mp,
+ struct mv643xx_eth_platform_data *pd)
+{
+ struct net_device *dev = mp->dev;
+ unsigned int tx_ring_size;
+
+ if (is_valid_ether_addr(pd->mac_addr))
+ memcpy(dev->dev_addr, pd->mac_addr, ETH_ALEN);
+ else
+ uc_addr_get(mp, dev->dev_addr);
+
+ mp->rx_ring_size = DEFAULT_RX_QUEUE_SIZE;
+ if (pd->rx_queue_size)
+ mp->rx_ring_size = pd->rx_queue_size;
+ mp->rx_desc_sram_addr = pd->rx_sram_addr;
+ mp->rx_desc_sram_size = pd->rx_sram_size;
+
+ mp->rxq_count = pd->rx_queue_count ? : 1;
+
+ tx_ring_size = DEFAULT_TX_QUEUE_SIZE;
+ if (pd->tx_queue_size)
+ tx_ring_size = pd->tx_queue_size;
+
+ mp->tx_ring_size = clamp_t(unsigned int, tx_ring_size,
+ MV643XX_MAX_SKB_DESCS * 2, 4096);
+ if (mp->tx_ring_size != tx_ring_size)
+ netdev_warn(dev, "TX queue size set to %u (requested %u)\n",
+ mp->tx_ring_size, tx_ring_size);
+
+ mp->tx_desc_sram_addr = pd->tx_sram_addr;
+ mp->tx_desc_sram_size = pd->tx_sram_size;
+
+ mp->txq_count = pd->tx_queue_count ? : 1;
+}
+
+static struct phy_device *phy_scan(struct mv643xx_eth_private *mp,
+ int phy_addr)
+{
+ struct phy_device *phydev;
+ int start;
+ int num;
+ int i;
+ char phy_id[MII_BUS_ID_SIZE + 3];
+
+ if (phy_addr == MV643XX_ETH_PHY_ADDR_DEFAULT) {
+ start = phy_addr_get(mp) & 0x1f;
+ num = 32;
+ } else {
+ start = phy_addr & 0x1f;
+ num = 1;
+ }
+
+ /* Attempt to connect to the PHY using orion-mdio */
+ phydev = ERR_PTR(-ENODEV);
+ for (i = 0; i < num; i++) {
+ int addr = (start + i) & 0x1f;
+
+ snprintf(phy_id, sizeof(phy_id), PHY_ID_FMT,
+ "orion-mdio-mii", addr);
+
+ phydev = phy_connect(mp->dev, phy_id, mv643xx_eth_adjust_link,
+ PHY_INTERFACE_MODE_GMII);
+ if (!IS_ERR(phydev)) {
+ phy_addr_set(mp, addr);
+ break;
+ }
+ }
+
+ return phydev;
+}
+
+static void phy_init(struct mv643xx_eth_private *mp, int speed, int duplex)
+{
+ struct phy_device *phy = mp->phy;
+
+ if (speed == 0) {
+ phy->autoneg = AUTONEG_ENABLE;
+ phy->speed = 0;
+ phy->duplex = 0;
+ phy->advertising = phy->supported | ADVERTISED_Autoneg;
+ } else {
+ phy->autoneg = AUTONEG_DISABLE;
+ phy->advertising = 0;
+ phy->speed = speed;
+ phy->duplex = duplex;
+ }
+ phy_start_aneg(phy);
+}
+
+static void init_pscr(struct mv643xx_eth_private *mp, int speed, int duplex)
+{
+ u32 pscr;
+
+ pscr = rdlp(mp, PORT_SERIAL_CONTROL);
+ if (pscr & SERIAL_PORT_ENABLE) {
+ pscr &= ~SERIAL_PORT_ENABLE;
+ wrlp(mp, PORT_SERIAL_CONTROL, pscr);
+ }
+
+ pscr = MAX_RX_PACKET_9700BYTE | SERIAL_PORT_CONTROL_RESERVED;
+ if (mp->phy == NULL) {
+ pscr |= DISABLE_AUTO_NEG_SPEED_GMII;
+ if (speed == SPEED_1000)
+ pscr |= SET_GMII_SPEED_TO_1000;
+ else if (speed == SPEED_100)
+ pscr |= SET_MII_SPEED_TO_100;
+
+ pscr |= DISABLE_AUTO_NEG_FOR_FLOW_CTRL;
+
+ pscr |= DISABLE_AUTO_NEG_FOR_DUPLEX;
+ if (duplex == DUPLEX_FULL)
+ pscr |= SET_FULL_DUPLEX_MODE;
+ }
+
+ wrlp(mp, PORT_SERIAL_CONTROL, pscr);
+}
+
+static const struct net_device_ops mv643xx_eth_netdev_ops = {
+ .ndo_open = mv643xx_eth_open,
+ .ndo_stop = mv643xx_eth_stop,
+ .ndo_start_xmit = mv643xx_eth_xmit,
+ .ndo_set_rx_mode = mv643xx_eth_set_rx_mode,
+ .ndo_set_mac_address = mv643xx_eth_set_mac_address,
+ .ndo_validate_addr = eth_validate_addr,
+ .ndo_do_ioctl = mv643xx_eth_ioctl,
+ .ndo_change_mtu = mv643xx_eth_change_mtu,
+ .ndo_set_features = mv643xx_eth_set_features,
+ .ndo_tx_timeout = mv643xx_eth_tx_timeout,
+ .ndo_get_stats = mv643xx_eth_get_stats,
+#ifdef CONFIG_NET_POLL_CONTROLLER
+ .ndo_poll_controller = mv643xx_eth_netpoll,
+#endif
+};
+
+static int mv643xx_eth_probe(struct platform_device *pdev)
+{
+ struct mv643xx_eth_platform_data *pd;
+ struct mv643xx_eth_private *mp;
+ struct net_device *dev;
+ struct resource *res;
+ int err;
+
+ pd = dev_get_platdata(&pdev->dev);
+ if (pd == NULL) {
+ dev_err(&pdev->dev, "no mv643xx_eth_platform_data\n");
+ return -ENODEV;
+ }
+
+ if (pd->shared == NULL) {
+ dev_err(&pdev->dev, "no mv643xx_eth_platform_data->shared\n");
+ return -ENODEV;
+ }
+
+ dev = alloc_etherdev_mq(sizeof(struct mv643xx_eth_private), 8);
+ if (!dev)
+ return -ENOMEM;
+
+ mp = netdev_priv(dev);
+ platform_set_drvdata(pdev, mp);
+
+ mp->shared = platform_get_drvdata(pd->shared);
+ mp->base = mp->shared->base + 0x0400 + (pd->port_number << 10);
+ mp->port_num = pd->port_number;
+
+ mp->dev = dev;
+
+ /* Kirkwood resets some registers on gated clocks. Especially
+ * CLK125_BYPASS_EN must be cleared but is not available on
+ * all other SoCs/System Controllers using this driver.
+ */
+ if (of_device_is_compatible(pdev->dev.of_node,
+ "marvell,kirkwood-eth-port"))
+ wrlp(mp, PORT_SERIAL_CONTROL1,
+ rdlp(mp, PORT_SERIAL_CONTROL1) & ~CLK125_BYPASS_EN);
+
+ /*
+ * Start with a default rate, and if there is a clock, allow
+ * it to override the default.
+ */
+ mp->t_clk = 133000000;
+ mp->clk = devm_clk_get(&pdev->dev, NULL);
+ if (!IS_ERR(mp->clk)) {
+ clk_prepare_enable(mp->clk);
+ mp->t_clk = clk_get_rate(mp->clk);
+ } else if (!IS_ERR(mp->shared->clk)) {
+ mp->t_clk = clk_get_rate(mp->shared->clk);
+ }
+
+ set_params(mp, pd);
+ netif_set_real_num_tx_queues(dev, mp->txq_count);
+ netif_set_real_num_rx_queues(dev, mp->rxq_count);
+
+ err = 0;
+ if (pd->phy_node) {
+ mp->phy = of_phy_connect(mp->dev, pd->phy_node,
+ mv643xx_eth_adjust_link, 0,
+ PHY_INTERFACE_MODE_GMII);
+ if (!mp->phy)
+ err = -ENODEV;
+ else
+ phy_addr_set(mp, mp->phy->addr);
+ } else if (pd->phy_addr != MV643XX_ETH_PHY_NONE) {
+ mp->phy = phy_scan(mp, pd->phy_addr);
+
+ if (IS_ERR(mp->phy))
+ err = PTR_ERR(mp->phy);
+ else
+ phy_init(mp, pd->speed, pd->duplex);
+ }
+ if (err == -ENODEV) {
+ err = -EPROBE_DEFER;
+ goto out;
+ }
+ if (err)
+ goto out;
+
+ dev->ethtool_ops = &mv643xx_eth_ethtool_ops;
+
+ init_pscr(mp, pd->speed, pd->duplex);
+
+
+ mib_counters_clear(mp);
+
+ init_timer(&mp->mib_counters_timer);
+ mp->mib_counters_timer.data = (unsigned long)mp;
+ mp->mib_counters_timer.function = mib_counters_timer_wrapper;
+ mp->mib_counters_timer.expires = jiffies + 30 * HZ;
+
+ spin_lock_init(&mp->mib_counters_lock);
+
+ INIT_WORK(&mp->tx_timeout_task, tx_timeout_task);
+
+ netif_napi_add(dev, &mp->napi, mv643xx_eth_poll, NAPI_POLL_WEIGHT);
+
+ init_timer(&mp->rx_oom);
+ mp->rx_oom.data = (unsigned long)mp;
+ mp->rx_oom.function = oom_timer_wrapper;
+
+
+ res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
+ BUG_ON(!res);
+ dev->irq = res->start;
+
+ dev->netdev_ops = &mv643xx_eth_netdev_ops;
+
+ dev->watchdog_timeo = 2 * HZ;
+ dev->base_addr = 0;
+
+ dev->features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO;
+ dev->vlan_features = dev->features;
+
+ dev->features |= NETIF_F_RXCSUM;
+ dev->hw_features = dev->features;
+
+ dev->priv_flags |= IFF_UNICAST_FLT;
+ dev->gso_max_segs = MV643XX_MAX_TSO_SEGS;
+
+ SET_NETDEV_DEV(dev, &pdev->dev);
+
+ if (mp->shared->win_protect)
+ wrl(mp, WINDOW_PROTECT(mp->port_num), mp->shared->win_protect);
+
+ netif_carrier_off(dev);
+
+ wrlp(mp, SDMA_CONFIG, PORT_SDMA_CONFIG_DEFAULT_VALUE);
+
+ set_rx_coal(mp, 250);
+ set_tx_coal(mp, 0);
+
+ err = register_netdev(dev);
+ if (err)
+ goto out;
+
+ netdev_notice(dev, "port %d with MAC address %pM\n",
+ mp->port_num, dev->dev_addr);
+
+ if (mp->tx_desc_sram_size > 0)
+ netdev_notice(dev, "configured with sram\n");
+
+ return 0;
+
+out:
+ if (!IS_ERR(mp->clk))
+ clk_disable_unprepare(mp->clk);
+ free_netdev(dev);
+
+ return err;
+}
+
+static int mv643xx_eth_remove(struct platform_device *pdev)
+{
+ struct mv643xx_eth_private *mp = platform_get_drvdata(pdev);
+
+ unregister_netdev(mp->dev);
+ if (mp->phy != NULL)
+ phy_disconnect(mp->phy);
+ cancel_work_sync(&mp->tx_timeout_task);
+
+ if (!IS_ERR(mp->clk))
+ clk_disable_unprepare(mp->clk);
+
+ free_netdev(mp->dev);
+
+ return 0;
+}
+
+static void mv643xx_eth_shutdown(struct platform_device *pdev)
+{
+ struct mv643xx_eth_private *mp = platform_get_drvdata(pdev);
+
+ /* Mask all interrupts on ethernet port */
+ wrlp(mp, INT_MASK, 0);
+ rdlp(mp, INT_MASK);
+
+ if (netif_running(mp->dev))
+ port_reset(mp);
+}
+
+static struct platform_driver mv643xx_eth_driver = {
+ .probe = mv643xx_eth_probe,
+ .remove = mv643xx_eth_remove,
+ .shutdown = mv643xx_eth_shutdown,
+ .driver = {
+ .name = MV643XX_ETH_NAME,
+ },
+};
+
+static int __init mv643xx_eth_init_module(void)
+{
+ int rc;
+
+ rc = platform_driver_register(&mv643xx_eth_shared_driver);
+ if (!rc) {
+ rc = platform_driver_register(&mv643xx_eth_driver);
+ if (rc)
+ platform_driver_unregister(&mv643xx_eth_shared_driver);
+ }
+
+ return rc;
+}
+module_init(mv643xx_eth_init_module);
+
+static void __exit mv643xx_eth_cleanup_module(void)
+{
+ platform_driver_unregister(&mv643xx_eth_driver);
+ platform_driver_unregister(&mv643xx_eth_shared_driver);
+}
+module_exit(mv643xx_eth_cleanup_module);
+
+MODULE_AUTHOR("Rabeeh Khoury, Assaf Hoffman, Matthew Dharm, "
+ "Manish Lachwani, Dale Farnsworth and Lennert Buytenhek");
+MODULE_DESCRIPTION("Ethernet driver for Marvell MV643XX");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:" MV643XX_ETH_SHARED_NAME);
+MODULE_ALIAS("platform:" MV643XX_ETH_NAME);
diff --git a/drivers/net/ethernet/marvell/mvmdio.c b/drivers/net/ethernet/marvell/mvmdio.c
new file mode 100644
index 000000000..fc2fb2534
--- /dev/null
+++ b/drivers/net/ethernet/marvell/mvmdio.c
@@ -0,0 +1,301 @@
+/*
+ * Driver for the MDIO interface of Marvell network interfaces.
+ *
+ * Since the MDIO interface of Marvell network interfaces is shared
+ * between all network interfaces, having a single driver allows to
+ * handle concurrent accesses properly (you may have four Ethernet
+ * ports, but they in fact share the same SMI interface to access
+ * the MDIO bus). This driver is currently used by the mvneta and
+ * mv643xx_eth drivers.
+ *
+ * Copyright (C) 2012 Marvell
+ *
+ * Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/phy.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <linux/delay.h>
+#include <linux/io.h>
+#include <linux/clk.h>
+#include <linux/of_mdio.h>
+#include <linux/sched.h>
+#include <linux/wait.h>
+
+#define MVMDIO_SMI_DATA_SHIFT 0
+#define MVMDIO_SMI_PHY_ADDR_SHIFT 16
+#define MVMDIO_SMI_PHY_REG_SHIFT 21
+#define MVMDIO_SMI_READ_OPERATION BIT(26)
+#define MVMDIO_SMI_WRITE_OPERATION 0
+#define MVMDIO_SMI_READ_VALID BIT(27)
+#define MVMDIO_SMI_BUSY BIT(28)
+#define MVMDIO_ERR_INT_CAUSE 0x007C
+#define MVMDIO_ERR_INT_SMI_DONE 0x00000010
+#define MVMDIO_ERR_INT_MASK 0x0080
+
+/*
+ * SMI Timeout measurements:
+ * - Kirkwood 88F6281 (Globalscale Dreamplug): 45us to 95us (Interrupt)
+ * - Armada 370 (Globalscale Mirabox): 41us to 43us (Polled)
+ */
+#define MVMDIO_SMI_TIMEOUT 1000 /* 1000us = 1ms */
+#define MVMDIO_SMI_POLL_INTERVAL_MIN 45
+#define MVMDIO_SMI_POLL_INTERVAL_MAX 55
+
+struct orion_mdio_dev {
+ struct mutex lock;
+ void __iomem *regs;
+ struct clk *clk;
+ /*
+ * If we have access to the error interrupt pin (which is
+ * somewhat misnamed as it not only reflects internal errors
+ * but also reflects SMI completion), use that to wait for
+ * SMI access completion instead of polling the SMI busy bit.
+ */
+ int err_interrupt;
+ wait_queue_head_t smi_busy_wait;
+};
+
+static int orion_mdio_smi_is_done(struct orion_mdio_dev *dev)
+{
+ return !(readl(dev->regs) & MVMDIO_SMI_BUSY);
+}
+
+/* Wait for the SMI unit to be ready for another operation
+ */
+static int orion_mdio_wait_ready(struct mii_bus *bus)
+{
+ struct orion_mdio_dev *dev = bus->priv;
+ unsigned long timeout = usecs_to_jiffies(MVMDIO_SMI_TIMEOUT);
+ unsigned long end = jiffies + timeout;
+ int timedout = 0;
+
+ while (1) {
+ if (orion_mdio_smi_is_done(dev))
+ return 0;
+ else if (timedout)
+ break;
+
+ if (dev->err_interrupt <= 0) {
+ usleep_range(MVMDIO_SMI_POLL_INTERVAL_MIN,
+ MVMDIO_SMI_POLL_INTERVAL_MAX);
+
+ if (time_is_before_jiffies(end))
+ ++timedout;
+ } else {
+ /* wait_event_timeout does not guarantee a delay of at
+ * least one whole jiffie, so timeout must be no less
+ * than two.
+ */
+ if (timeout < 2)
+ timeout = 2;
+ wait_event_timeout(dev->smi_busy_wait,
+ orion_mdio_smi_is_done(dev),
+ timeout);
+
+ ++timedout;
+ }
+ }
+
+ dev_err(bus->parent, "Timeout: SMI busy for too long\n");
+ return -ETIMEDOUT;
+}
+
+static int orion_mdio_read(struct mii_bus *bus, int mii_id,
+ int regnum)
+{
+ struct orion_mdio_dev *dev = bus->priv;
+ u32 val;
+ int ret;
+
+ mutex_lock(&dev->lock);
+
+ ret = orion_mdio_wait_ready(bus);
+ if (ret < 0)
+ goto out;
+
+ writel(((mii_id << MVMDIO_SMI_PHY_ADDR_SHIFT) |
+ (regnum << MVMDIO_SMI_PHY_REG_SHIFT) |
+ MVMDIO_SMI_READ_OPERATION),
+ dev->regs);
+
+ ret = orion_mdio_wait_ready(bus);
+ if (ret < 0)
+ goto out;
+
+ val = readl(dev->regs);
+ if (!(val & MVMDIO_SMI_READ_VALID)) {
+ dev_err(bus->parent, "SMI bus read not valid\n");
+ ret = -ENODEV;
+ goto out;
+ }
+
+ ret = val & 0xFFFF;
+out:
+ mutex_unlock(&dev->lock);
+ return ret;
+}
+
+static int orion_mdio_write(struct mii_bus *bus, int mii_id,
+ int regnum, u16 value)
+{
+ struct orion_mdio_dev *dev = bus->priv;
+ int ret;
+
+ mutex_lock(&dev->lock);
+
+ ret = orion_mdio_wait_ready(bus);
+ if (ret < 0)
+ goto out;
+
+ writel(((mii_id << MVMDIO_SMI_PHY_ADDR_SHIFT) |
+ (regnum << MVMDIO_SMI_PHY_REG_SHIFT) |
+ MVMDIO_SMI_WRITE_OPERATION |
+ (value << MVMDIO_SMI_DATA_SHIFT)),
+ dev->regs);
+
+out:
+ mutex_unlock(&dev->lock);
+ return ret;
+}
+
+static irqreturn_t orion_mdio_err_irq(int irq, void *dev_id)
+{
+ struct orion_mdio_dev *dev = dev_id;
+
+ if (readl(dev->regs + MVMDIO_ERR_INT_CAUSE) &
+ MVMDIO_ERR_INT_SMI_DONE) {
+ writel(~MVMDIO_ERR_INT_SMI_DONE,
+ dev->regs + MVMDIO_ERR_INT_CAUSE);
+ wake_up(&dev->smi_busy_wait);
+ return IRQ_HANDLED;
+ }
+
+ return IRQ_NONE;
+}
+
+static int orion_mdio_probe(struct platform_device *pdev)
+{
+ struct resource *r;
+ struct mii_bus *bus;
+ struct orion_mdio_dev *dev;
+ int i, ret;
+
+ r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!r) {
+ dev_err(&pdev->dev, "No SMI register address given\n");
+ return -ENODEV;
+ }
+
+ bus = devm_mdiobus_alloc_size(&pdev->dev,
+ sizeof(struct orion_mdio_dev));
+ if (!bus)
+ return -ENOMEM;
+
+ bus->name = "orion_mdio_bus";
+ bus->read = orion_mdio_read;
+ bus->write = orion_mdio_write;
+ snprintf(bus->id, MII_BUS_ID_SIZE, "%s-mii",
+ dev_name(&pdev->dev));
+ bus->parent = &pdev->dev;
+
+ bus->irq = devm_kmalloc_array(&pdev->dev, PHY_MAX_ADDR, sizeof(int),
+ GFP_KERNEL);
+ if (!bus->irq)
+ return -ENOMEM;
+
+ for (i = 0; i < PHY_MAX_ADDR; i++)
+ bus->irq[i] = PHY_POLL;
+
+ dev = bus->priv;
+ dev->regs = devm_ioremap(&pdev->dev, r->start, resource_size(r));
+ if (!dev->regs) {
+ dev_err(&pdev->dev, "Unable to remap SMI register\n");
+ ret = -ENODEV;
+ goto out_mdio;
+ }
+
+ init_waitqueue_head(&dev->smi_busy_wait);
+
+ dev->clk = devm_clk_get(&pdev->dev, NULL);
+ if (!IS_ERR(dev->clk))
+ clk_prepare_enable(dev->clk);
+
+ dev->err_interrupt = platform_get_irq(pdev, 0);
+ if (dev->err_interrupt > 0) {
+ ret = devm_request_irq(&pdev->dev, dev->err_interrupt,
+ orion_mdio_err_irq,
+ IRQF_SHARED, pdev->name, dev);
+ if (ret)
+ goto out_mdio;
+
+ writel(MVMDIO_ERR_INT_SMI_DONE,
+ dev->regs + MVMDIO_ERR_INT_MASK);
+
+ } else if (dev->err_interrupt == -EPROBE_DEFER) {
+ return -EPROBE_DEFER;
+ }
+
+ mutex_init(&dev->lock);
+
+ if (pdev->dev.of_node)
+ ret = of_mdiobus_register(bus, pdev->dev.of_node);
+ else
+ ret = mdiobus_register(bus);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "Cannot register MDIO bus (%d)\n", ret);
+ goto out_mdio;
+ }
+
+ platform_set_drvdata(pdev, bus);
+
+ return 0;
+
+out_mdio:
+ if (!IS_ERR(dev->clk))
+ clk_disable_unprepare(dev->clk);
+ return ret;
+}
+
+static int orion_mdio_remove(struct platform_device *pdev)
+{
+ struct mii_bus *bus = platform_get_drvdata(pdev);
+ struct orion_mdio_dev *dev = bus->priv;
+
+ writel(0, dev->regs + MVMDIO_ERR_INT_MASK);
+ mdiobus_unregister(bus);
+ if (!IS_ERR(dev->clk))
+ clk_disable_unprepare(dev->clk);
+
+ return 0;
+}
+
+static const struct of_device_id orion_mdio_match[] = {
+ { .compatible = "marvell,orion-mdio" },
+ { }
+};
+MODULE_DEVICE_TABLE(of, orion_mdio_match);
+
+static struct platform_driver orion_mdio_driver = {
+ .probe = orion_mdio_probe,
+ .remove = orion_mdio_remove,
+ .driver = {
+ .name = "orion-mdio",
+ .of_match_table = orion_mdio_match,
+ },
+};
+
+module_platform_driver(orion_mdio_driver);
+
+MODULE_DESCRIPTION("Marvell MDIO interface driver");
+MODULE_AUTHOR("Thomas Petazzoni <thomas.petazzoni@free-electrons.com>");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:orion-mdio");
diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c
new file mode 100644
index 000000000..74d0389bf
--- /dev/null
+++ b/drivers/net/ethernet/marvell/mvneta.c
@@ -0,0 +1,3236 @@
+/*
+ * Driver for Marvell NETA network card for Armada XP and Armada 370 SoCs.
+ *
+ * Copyright (C) 2012 Marvell
+ *
+ * Rami Rosen <rosenr@marvell.com>
+ * Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <linux/kernel.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/platform_device.h>
+#include <linux/skbuff.h>
+#include <linux/inetdevice.h>
+#include <linux/mbus.h>
+#include <linux/module.h>
+#include <linux/interrupt.h>
+#include <linux/if_vlan.h>
+#include <net/ip.h>
+#include <net/ipv6.h>
+#include <linux/io.h>
+#include <net/tso.h>
+#include <linux/of.h>
+#include <linux/of_irq.h>
+#include <linux/of_mdio.h>
+#include <linux/of_net.h>
+#include <linux/of_address.h>
+#include <linux/phy.h>
+#include <linux/clk.h>
+
+/* Registers */
+#define MVNETA_RXQ_CONFIG_REG(q) (0x1400 + ((q) << 2))
+#define MVNETA_RXQ_HW_BUF_ALLOC BIT(1)
+#define MVNETA_RXQ_PKT_OFFSET_ALL_MASK (0xf << 8)
+#define MVNETA_RXQ_PKT_OFFSET_MASK(offs) ((offs) << 8)
+#define MVNETA_RXQ_THRESHOLD_REG(q) (0x14c0 + ((q) << 2))
+#define MVNETA_RXQ_NON_OCCUPIED(v) ((v) << 16)
+#define MVNETA_RXQ_BASE_ADDR_REG(q) (0x1480 + ((q) << 2))
+#define MVNETA_RXQ_SIZE_REG(q) (0x14a0 + ((q) << 2))
+#define MVNETA_RXQ_BUF_SIZE_SHIFT 19
+#define MVNETA_RXQ_BUF_SIZE_MASK (0x1fff << 19)
+#define MVNETA_RXQ_STATUS_REG(q) (0x14e0 + ((q) << 2))
+#define MVNETA_RXQ_OCCUPIED_ALL_MASK 0x3fff
+#define MVNETA_RXQ_STATUS_UPDATE_REG(q) (0x1500 + ((q) << 2))
+#define MVNETA_RXQ_ADD_NON_OCCUPIED_SHIFT 16
+#define MVNETA_RXQ_ADD_NON_OCCUPIED_MAX 255
+#define MVNETA_PORT_RX_RESET 0x1cc0
+#define MVNETA_PORT_RX_DMA_RESET BIT(0)
+#define MVNETA_PHY_ADDR 0x2000
+#define MVNETA_PHY_ADDR_MASK 0x1f
+#define MVNETA_MBUS_RETRY 0x2010
+#define MVNETA_UNIT_INTR_CAUSE 0x2080
+#define MVNETA_UNIT_CONTROL 0x20B0
+#define MVNETA_PHY_POLLING_ENABLE BIT(1)
+#define MVNETA_WIN_BASE(w) (0x2200 + ((w) << 3))
+#define MVNETA_WIN_SIZE(w) (0x2204 + ((w) << 3))
+#define MVNETA_WIN_REMAP(w) (0x2280 + ((w) << 2))
+#define MVNETA_BASE_ADDR_ENABLE 0x2290
+#define MVNETA_PORT_CONFIG 0x2400
+#define MVNETA_UNI_PROMISC_MODE BIT(0)
+#define MVNETA_DEF_RXQ(q) ((q) << 1)
+#define MVNETA_DEF_RXQ_ARP(q) ((q) << 4)
+#define MVNETA_TX_UNSET_ERR_SUM BIT(12)
+#define MVNETA_DEF_RXQ_TCP(q) ((q) << 16)
+#define MVNETA_DEF_RXQ_UDP(q) ((q) << 19)
+#define MVNETA_DEF_RXQ_BPDU(q) ((q) << 22)
+#define MVNETA_RX_CSUM_WITH_PSEUDO_HDR BIT(25)
+#define MVNETA_PORT_CONFIG_DEFL_VALUE(q) (MVNETA_DEF_RXQ(q) | \
+ MVNETA_DEF_RXQ_ARP(q) | \
+ MVNETA_DEF_RXQ_TCP(q) | \
+ MVNETA_DEF_RXQ_UDP(q) | \
+ MVNETA_DEF_RXQ_BPDU(q) | \
+ MVNETA_TX_UNSET_ERR_SUM | \
+ MVNETA_RX_CSUM_WITH_PSEUDO_HDR)
+#define MVNETA_PORT_CONFIG_EXTEND 0x2404
+#define MVNETA_MAC_ADDR_LOW 0x2414
+#define MVNETA_MAC_ADDR_HIGH 0x2418
+#define MVNETA_SDMA_CONFIG 0x241c
+#define MVNETA_SDMA_BRST_SIZE_16 4
+#define MVNETA_RX_BRST_SZ_MASK(burst) ((burst) << 1)
+#define MVNETA_RX_NO_DATA_SWAP BIT(4)
+#define MVNETA_TX_NO_DATA_SWAP BIT(5)
+#define MVNETA_DESC_SWAP BIT(6)
+#define MVNETA_TX_BRST_SZ_MASK(burst) ((burst) << 22)
+#define MVNETA_PORT_STATUS 0x2444
+#define MVNETA_TX_IN_PRGRS BIT(1)
+#define MVNETA_TX_FIFO_EMPTY BIT(8)
+#define MVNETA_RX_MIN_FRAME_SIZE 0x247c
+#define MVNETA_SERDES_CFG 0x24A0
+#define MVNETA_SGMII_SERDES_PROTO 0x0cc7
+#define MVNETA_QSGMII_SERDES_PROTO 0x0667
+#define MVNETA_TYPE_PRIO 0x24bc
+#define MVNETA_FORCE_UNI BIT(21)
+#define MVNETA_TXQ_CMD_1 0x24e4
+#define MVNETA_TXQ_CMD 0x2448
+#define MVNETA_TXQ_DISABLE_SHIFT 8
+#define MVNETA_TXQ_ENABLE_MASK 0x000000ff
+#define MVNETA_GMAC_CLOCK_DIVIDER 0x24f4
+#define MVNETA_GMAC_1MS_CLOCK_ENABLE BIT(31)
+#define MVNETA_ACC_MODE 0x2500
+#define MVNETA_CPU_MAP(cpu) (0x2540 + ((cpu) << 2))
+#define MVNETA_CPU_RXQ_ACCESS_ALL_MASK 0x000000ff
+#define MVNETA_CPU_TXQ_ACCESS_ALL_MASK 0x0000ff00
+#define MVNETA_RXQ_TIME_COAL_REG(q) (0x2580 + ((q) << 2))
+
+/* Exception Interrupt Port/Queue Cause register */
+
+#define MVNETA_INTR_NEW_CAUSE 0x25a0
+#define MVNETA_INTR_NEW_MASK 0x25a4
+
+/* bits 0..7 = TXQ SENT, one bit per queue.
+ * bits 8..15 = RXQ OCCUP, one bit per queue.
+ * bits 16..23 = RXQ FREE, one bit per queue.
+ * bit 29 = OLD_REG_SUM, see old reg ?
+ * bit 30 = TX_ERR_SUM, one bit for 4 ports
+ * bit 31 = MISC_SUM, one bit for 4 ports
+ */
+#define MVNETA_TX_INTR_MASK(nr_txqs) (((1 << nr_txqs) - 1) << 0)
+#define MVNETA_TX_INTR_MASK_ALL (0xff << 0)
+#define MVNETA_RX_INTR_MASK(nr_rxqs) (((1 << nr_rxqs) - 1) << 8)
+#define MVNETA_RX_INTR_MASK_ALL (0xff << 8)
+#define MVNETA_MISCINTR_INTR_MASK BIT(31)
+
+#define MVNETA_INTR_OLD_CAUSE 0x25a8
+#define MVNETA_INTR_OLD_MASK 0x25ac
+
+/* Data Path Port/Queue Cause Register */
+#define MVNETA_INTR_MISC_CAUSE 0x25b0
+#define MVNETA_INTR_MISC_MASK 0x25b4
+
+#define MVNETA_CAUSE_PHY_STATUS_CHANGE BIT(0)
+#define MVNETA_CAUSE_LINK_CHANGE BIT(1)
+#define MVNETA_CAUSE_PTP BIT(4)
+
+#define MVNETA_CAUSE_INTERNAL_ADDR_ERR BIT(7)
+#define MVNETA_CAUSE_RX_OVERRUN BIT(8)
+#define MVNETA_CAUSE_RX_CRC_ERROR BIT(9)
+#define MVNETA_CAUSE_RX_LARGE_PKT BIT(10)
+#define MVNETA_CAUSE_TX_UNDERUN BIT(11)
+#define MVNETA_CAUSE_PRBS_ERR BIT(12)
+#define MVNETA_CAUSE_PSC_SYNC_CHANGE BIT(13)
+#define MVNETA_CAUSE_SERDES_SYNC_ERR BIT(14)
+
+#define MVNETA_CAUSE_BMU_ALLOC_ERR_SHIFT 16
+#define MVNETA_CAUSE_BMU_ALLOC_ERR_ALL_MASK (0xF << MVNETA_CAUSE_BMU_ALLOC_ERR_SHIFT)
+#define MVNETA_CAUSE_BMU_ALLOC_ERR_MASK(pool) (1 << (MVNETA_CAUSE_BMU_ALLOC_ERR_SHIFT + (pool)))
+
+#define MVNETA_CAUSE_TXQ_ERROR_SHIFT 24
+#define MVNETA_CAUSE_TXQ_ERROR_ALL_MASK (0xFF << MVNETA_CAUSE_TXQ_ERROR_SHIFT)
+#define MVNETA_CAUSE_TXQ_ERROR_MASK(q) (1 << (MVNETA_CAUSE_TXQ_ERROR_SHIFT + (q)))
+
+#define MVNETA_INTR_ENABLE 0x25b8
+#define MVNETA_TXQ_INTR_ENABLE_ALL_MASK 0x0000ff00
+#define MVNETA_RXQ_INTR_ENABLE_ALL_MASK 0xff000000 // note: neta says it's 0x000000FF
+
+#define MVNETA_RXQ_CMD 0x2680
+#define MVNETA_RXQ_DISABLE_SHIFT 8
+#define MVNETA_RXQ_ENABLE_MASK 0x000000ff
+#define MVETH_TXQ_TOKEN_COUNT_REG(q) (0x2700 + ((q) << 4))
+#define MVETH_TXQ_TOKEN_CFG_REG(q) (0x2704 + ((q) << 4))
+#define MVNETA_GMAC_CTRL_0 0x2c00
+#define MVNETA_GMAC_MAX_RX_SIZE_SHIFT 2
+#define MVNETA_GMAC_MAX_RX_SIZE_MASK 0x7ffc
+#define MVNETA_GMAC0_PORT_ENABLE BIT(0)
+#define MVNETA_GMAC_CTRL_2 0x2c08
+#define MVNETA_GMAC2_INBAND_AN_ENABLE BIT(0)
+#define MVNETA_GMAC2_PCS_ENABLE BIT(3)
+#define MVNETA_GMAC2_PORT_RGMII BIT(4)
+#define MVNETA_GMAC2_PORT_RESET BIT(6)
+#define MVNETA_GMAC_STATUS 0x2c10
+#define MVNETA_GMAC_LINK_UP BIT(0)
+#define MVNETA_GMAC_SPEED_1000 BIT(1)
+#define MVNETA_GMAC_SPEED_100 BIT(2)
+#define MVNETA_GMAC_FULL_DUPLEX BIT(3)
+#define MVNETA_GMAC_RX_FLOW_CTRL_ENABLE BIT(4)
+#define MVNETA_GMAC_TX_FLOW_CTRL_ENABLE BIT(5)
+#define MVNETA_GMAC_RX_FLOW_CTRL_ACTIVE BIT(6)
+#define MVNETA_GMAC_TX_FLOW_CTRL_ACTIVE BIT(7)
+#define MVNETA_GMAC_AUTONEG_CONFIG 0x2c0c
+#define MVNETA_GMAC_FORCE_LINK_DOWN BIT(0)
+#define MVNETA_GMAC_FORCE_LINK_PASS BIT(1)
+#define MVNETA_GMAC_INBAND_AN_ENABLE BIT(2)
+#define MVNETA_GMAC_CONFIG_MII_SPEED BIT(5)
+#define MVNETA_GMAC_CONFIG_GMII_SPEED BIT(6)
+#define MVNETA_GMAC_AN_SPEED_EN BIT(7)
+#define MVNETA_GMAC_AN_FLOW_CTRL_EN BIT(11)
+#define MVNETA_GMAC_CONFIG_FULL_DUPLEX BIT(12)
+#define MVNETA_GMAC_AN_DUPLEX_EN BIT(13)
+#define MVNETA_MIB_COUNTERS_BASE 0x3080
+#define MVNETA_MIB_LATE_COLLISION 0x7c
+#define MVNETA_DA_FILT_SPEC_MCAST 0x3400
+#define MVNETA_DA_FILT_OTH_MCAST 0x3500
+#define MVNETA_DA_FILT_UCAST_BASE 0x3600
+#define MVNETA_TXQ_BASE_ADDR_REG(q) (0x3c00 + ((q) << 2))
+#define MVNETA_TXQ_SIZE_REG(q) (0x3c20 + ((q) << 2))
+#define MVNETA_TXQ_SENT_THRESH_ALL_MASK 0x3fff0000
+#define MVNETA_TXQ_SENT_THRESH_MASK(coal) ((coal) << 16)
+#define MVNETA_TXQ_UPDATE_REG(q) (0x3c60 + ((q) << 2))
+#define MVNETA_TXQ_DEC_SENT_SHIFT 16
+#define MVNETA_TXQ_STATUS_REG(q) (0x3c40 + ((q) << 2))
+#define MVNETA_TXQ_SENT_DESC_SHIFT 16
+#define MVNETA_TXQ_SENT_DESC_MASK 0x3fff0000
+#define MVNETA_PORT_TX_RESET 0x3cf0
+#define MVNETA_PORT_TX_DMA_RESET BIT(0)
+#define MVNETA_TX_MTU 0x3e0c
+#define MVNETA_TX_TOKEN_SIZE 0x3e14
+#define MVNETA_TX_TOKEN_SIZE_MAX 0xffffffff
+#define MVNETA_TXQ_TOKEN_SIZE_REG(q) (0x3e40 + ((q) << 2))
+#define MVNETA_TXQ_TOKEN_SIZE_MAX 0x7fffffff
+
+#define MVNETA_CAUSE_TXQ_SENT_DESC_ALL_MASK 0xff
+
+/* Descriptor ring Macros */
+#define MVNETA_QUEUE_NEXT_DESC(q, index) \
+ (((index) < (q)->last_desc) ? ((index) + 1) : 0)
+
+/* Various constants */
+
+/* Coalescing */
+#define MVNETA_TXDONE_COAL_PKTS 1
+#define MVNETA_RX_COAL_PKTS 32
+#define MVNETA_RX_COAL_USEC 100
+
+/* The two bytes Marvell header. Either contains a special value used
+ * by Marvell switches when a specific hardware mode is enabled (not
+ * supported by this driver) or is filled automatically by zeroes on
+ * the RX side. Those two bytes being at the front of the Ethernet
+ * header, they allow to have the IP header aligned on a 4 bytes
+ * boundary automatically: the hardware skips those two bytes on its
+ * own.
+ */
+#define MVNETA_MH_SIZE 2
+
+#define MVNETA_VLAN_TAG_LEN 4
+
+#define MVNETA_CPU_D_CACHE_LINE_SIZE 32
+#define MVNETA_TX_CSUM_MAX_SIZE 9800
+#define MVNETA_ACC_MODE_EXT 1
+
+/* Timeout constants */
+#define MVNETA_TX_DISABLE_TIMEOUT_MSEC 1000
+#define MVNETA_RX_DISABLE_TIMEOUT_MSEC 1000
+#define MVNETA_TX_FIFO_EMPTY_TIMEOUT 10000
+
+#define MVNETA_TX_MTU_MAX 0x3ffff
+
+/* TSO header size */
+#define TSO_HEADER_SIZE 128
+
+/* Max number of Rx descriptors */
+#define MVNETA_MAX_RXD 128
+
+/* Max number of Tx descriptors */
+#define MVNETA_MAX_TXD 532
+
+/* Max number of allowed TCP segments for software TSO */
+#define MVNETA_MAX_TSO_SEGS 100
+
+#define MVNETA_MAX_SKB_DESCS (MVNETA_MAX_TSO_SEGS * 2 + MAX_SKB_FRAGS)
+
+/* descriptor aligned size */
+#define MVNETA_DESC_ALIGNED_SIZE 32
+
+#define MVNETA_RX_PKT_SIZE(mtu) \
+ ALIGN((mtu) + MVNETA_MH_SIZE + MVNETA_VLAN_TAG_LEN + \
+ ETH_HLEN + ETH_FCS_LEN, \
+ MVNETA_CPU_D_CACHE_LINE_SIZE)
+
+#define IS_TSO_HEADER(txq, addr) \
+ ((addr >= txq->tso_hdrs_phys) && \
+ (addr < txq->tso_hdrs_phys + txq->size * TSO_HEADER_SIZE))
+
+#define MVNETA_RX_BUF_SIZE(pkt_size) ((pkt_size) + NET_SKB_PAD)
+
+struct mvneta_pcpu_stats {
+ struct u64_stats_sync syncp;
+ u64 rx_packets;
+ u64 rx_bytes;
+ u64 tx_packets;
+ u64 tx_bytes;
+};
+
+struct mvneta_port {
+ int pkt_size;
+ unsigned int frag_size;
+ void __iomem *base;
+ struct mvneta_rx_queue *rxqs;
+ struct mvneta_tx_queue *txqs;
+ struct net_device *dev;
+
+ u32 cause_rx_tx;
+ struct napi_struct napi;
+
+ /* Core clock */
+ struct clk *clk;
+ u8 mcast_count[256];
+ u16 tx_ring_size;
+ u16 rx_ring_size;
+ struct mvneta_pcpu_stats *stats;
+
+ struct mii_bus *mii_bus;
+ struct phy_device *phy_dev;
+ phy_interface_t phy_interface;
+ struct device_node *phy_node;
+ unsigned int link;
+ unsigned int duplex;
+ unsigned int speed;
+ unsigned int tx_csum_limit;
+ int use_inband_status:1;
+};
+
+/* The mvneta_tx_desc and mvneta_rx_desc structures describe the
+ * layout of the transmit and reception DMA descriptors, and their
+ * layout is therefore defined by the hardware design
+ */
+
+#define MVNETA_TX_L3_OFF_SHIFT 0
+#define MVNETA_TX_IP_HLEN_SHIFT 8
+#define MVNETA_TX_L4_UDP BIT(16)
+#define MVNETA_TX_L3_IP6 BIT(17)
+#define MVNETA_TXD_IP_CSUM BIT(18)
+#define MVNETA_TXD_Z_PAD BIT(19)
+#define MVNETA_TXD_L_DESC BIT(20)
+#define MVNETA_TXD_F_DESC BIT(21)
+#define MVNETA_TXD_FLZ_DESC (MVNETA_TXD_Z_PAD | \
+ MVNETA_TXD_L_DESC | \
+ MVNETA_TXD_F_DESC)
+#define MVNETA_TX_L4_CSUM_FULL BIT(30)
+#define MVNETA_TX_L4_CSUM_NOT BIT(31)
+
+#define MVNETA_RXD_ERR_CRC 0x0
+#define MVNETA_RXD_ERR_SUMMARY BIT(16)
+#define MVNETA_RXD_ERR_OVERRUN BIT(17)
+#define MVNETA_RXD_ERR_LEN BIT(18)
+#define MVNETA_RXD_ERR_RESOURCE (BIT(17) | BIT(18))
+#define MVNETA_RXD_ERR_CODE_MASK (BIT(17) | BIT(18))
+#define MVNETA_RXD_L3_IP4 BIT(25)
+#define MVNETA_RXD_FIRST_LAST_DESC (BIT(26) | BIT(27))
+#define MVNETA_RXD_L4_CSUM_OK BIT(30)
+
+#if defined(__LITTLE_ENDIAN)
+struct mvneta_tx_desc {
+ u32 command; /* Options used by HW for packet transmitting.*/
+ u16 reserverd1; /* csum_l4 (for future use) */
+ u16 data_size; /* Data size of transmitted packet in bytes */
+ u32 buf_phys_addr; /* Physical addr of transmitted buffer */
+ u32 reserved2; /* hw_cmd - (for future use, PMT) */
+ u32 reserved3[4]; /* Reserved - (for future use) */
+};
+
+struct mvneta_rx_desc {
+ u32 status; /* Info about received packet */
+ u16 reserved1; /* pnc_info - (for future use, PnC) */
+ u16 data_size; /* Size of received packet in bytes */
+
+ u32 buf_phys_addr; /* Physical address of the buffer */
+ u32 reserved2; /* pnc_flow_id (for future use, PnC) */
+
+ u32 buf_cookie; /* cookie for access to RX buffer in rx path */
+ u16 reserved3; /* prefetch_cmd, for future use */
+ u16 reserved4; /* csum_l4 - (for future use, PnC) */
+
+ u32 reserved5; /* pnc_extra PnC (for future use, PnC) */
+ u32 reserved6; /* hw_cmd (for future use, PnC and HWF) */
+};
+#else
+struct mvneta_tx_desc {
+ u16 data_size; /* Data size of transmitted packet in bytes */
+ u16 reserverd1; /* csum_l4 (for future use) */
+ u32 command; /* Options used by HW for packet transmitting.*/
+ u32 reserved2; /* hw_cmd - (for future use, PMT) */
+ u32 buf_phys_addr; /* Physical addr of transmitted buffer */
+ u32 reserved3[4]; /* Reserved - (for future use) */
+};
+
+struct mvneta_rx_desc {
+ u16 data_size; /* Size of received packet in bytes */
+ u16 reserved1; /* pnc_info - (for future use, PnC) */
+ u32 status; /* Info about received packet */
+
+ u32 reserved2; /* pnc_flow_id (for future use, PnC) */
+ u32 buf_phys_addr; /* Physical address of the buffer */
+
+ u16 reserved4; /* csum_l4 - (for future use, PnC) */
+ u16 reserved3; /* prefetch_cmd, for future use */
+ u32 buf_cookie; /* cookie for access to RX buffer in rx path */
+
+ u32 reserved5; /* pnc_extra PnC (for future use, PnC) */
+ u32 reserved6; /* hw_cmd (for future use, PnC and HWF) */
+};
+#endif
+
+struct mvneta_tx_queue {
+ /* Number of this TX queue, in the range 0-7 */
+ u8 id;
+
+ /* Number of TX DMA descriptors in the descriptor ring */
+ int size;
+
+ /* Number of currently used TX DMA descriptor in the
+ * descriptor ring
+ */
+ int count;
+ int tx_stop_threshold;
+ int tx_wake_threshold;
+
+ /* Array of transmitted skb */
+ struct sk_buff **tx_skb;
+
+ /* Index of last TX DMA descriptor that was inserted */
+ int txq_put_index;
+
+ /* Index of the TX DMA descriptor to be cleaned up */
+ int txq_get_index;
+
+ u32 done_pkts_coal;
+
+ /* Virtual address of the TX DMA descriptors array */
+ struct mvneta_tx_desc *descs;
+
+ /* DMA address of the TX DMA descriptors array */
+ dma_addr_t descs_phys;
+
+ /* Index of the last TX DMA descriptor */
+ int last_desc;
+
+ /* Index of the next TX DMA descriptor to process */
+ int next_desc_to_proc;
+
+ /* DMA buffers for TSO headers */
+ char *tso_hdrs;
+
+ /* DMA address of TSO headers */
+ dma_addr_t tso_hdrs_phys;
+};
+
+struct mvneta_rx_queue {
+ /* rx queue number, in the range 0-7 */
+ u8 id;
+
+ /* num of rx descriptors in the rx descriptor ring */
+ int size;
+
+ /* counter of times when mvneta_refill() failed */
+ int missed;
+
+ u32 pkts_coal;
+ u32 time_coal;
+
+ /* Virtual address of the RX DMA descriptors array */
+ struct mvneta_rx_desc *descs;
+
+ /* DMA address of the RX DMA descriptors array */
+ dma_addr_t descs_phys;
+
+ /* Index of the last RX DMA descriptor */
+ int last_desc;
+
+ /* Index of the next RX DMA descriptor to process */
+ int next_desc_to_proc;
+};
+
+/* The hardware supports eight (8) rx queues, but we are only allowing
+ * the first one to be used. Therefore, let's just allocate one queue.
+ */
+static int rxq_number = 1;
+static int txq_number = 8;
+
+static int rxq_def;
+
+static int rx_copybreak __read_mostly = 256;
+
+#define MVNETA_DRIVER_NAME "mvneta"
+#define MVNETA_DRIVER_VERSION "1.0"
+
+/* Utility/helper methods */
+
+/* Write helper method */
+static void mvreg_write(struct mvneta_port *pp, u32 offset, u32 data)
+{
+ writel(data, pp->base + offset);
+}
+
+/* Read helper method */
+static u32 mvreg_read(struct mvneta_port *pp, u32 offset)
+{
+ return readl(pp->base + offset);
+}
+
+/* Increment txq get counter */
+static void mvneta_txq_inc_get(struct mvneta_tx_queue *txq)
+{
+ txq->txq_get_index++;
+ if (txq->txq_get_index == txq->size)
+ txq->txq_get_index = 0;
+}
+
+/* Increment txq put counter */
+static void mvneta_txq_inc_put(struct mvneta_tx_queue *txq)
+{
+ txq->txq_put_index++;
+ if (txq->txq_put_index == txq->size)
+ txq->txq_put_index = 0;
+}
+
+
+/* Clear all MIB counters */
+static void mvneta_mib_counters_clear(struct mvneta_port *pp)
+{
+ int i;
+ u32 dummy;
+
+ /* Perform dummy reads from MIB counters */
+ for (i = 0; i < MVNETA_MIB_LATE_COLLISION; i += 4)
+ dummy = mvreg_read(pp, (MVNETA_MIB_COUNTERS_BASE + i));
+}
+
+/* Get System Network Statistics */
+struct rtnl_link_stats64 *mvneta_get_stats64(struct net_device *dev,
+ struct rtnl_link_stats64 *stats)
+{
+ struct mvneta_port *pp = netdev_priv(dev);
+ unsigned int start;
+ int cpu;
+
+ for_each_possible_cpu(cpu) {
+ struct mvneta_pcpu_stats *cpu_stats;
+ u64 rx_packets;
+ u64 rx_bytes;
+ u64 tx_packets;
+ u64 tx_bytes;
+
+ cpu_stats = per_cpu_ptr(pp->stats, cpu);
+ do {
+ start = u64_stats_fetch_begin_irq(&cpu_stats->syncp);
+ rx_packets = cpu_stats->rx_packets;
+ rx_bytes = cpu_stats->rx_bytes;
+ tx_packets = cpu_stats->tx_packets;
+ tx_bytes = cpu_stats->tx_bytes;
+ } while (u64_stats_fetch_retry_irq(&cpu_stats->syncp, start));
+
+ stats->rx_packets += rx_packets;
+ stats->rx_bytes += rx_bytes;
+ stats->tx_packets += tx_packets;
+ stats->tx_bytes += tx_bytes;
+ }
+
+ stats->rx_errors = dev->stats.rx_errors;
+ stats->rx_dropped = dev->stats.rx_dropped;
+
+ stats->tx_dropped = dev->stats.tx_dropped;
+
+ return stats;
+}
+
+/* Rx descriptors helper methods */
+
+/* Checks whether the RX descriptor having this status is both the first
+ * and the last descriptor for the RX packet. Each RX packet is currently
+ * received through a single RX descriptor, so not having each RX
+ * descriptor with its first and last bits set is an error
+ */
+static int mvneta_rxq_desc_is_first_last(u32 status)
+{
+ return (status & MVNETA_RXD_FIRST_LAST_DESC) ==
+ MVNETA_RXD_FIRST_LAST_DESC;
+}
+
+/* Add number of descriptors ready to receive new packets */
+static void mvneta_rxq_non_occup_desc_add(struct mvneta_port *pp,
+ struct mvneta_rx_queue *rxq,
+ int ndescs)
+{
+ /* Only MVNETA_RXQ_ADD_NON_OCCUPIED_MAX (255) descriptors can
+ * be added at once
+ */
+ while (ndescs > MVNETA_RXQ_ADD_NON_OCCUPIED_MAX) {
+ mvreg_write(pp, MVNETA_RXQ_STATUS_UPDATE_REG(rxq->id),
+ (MVNETA_RXQ_ADD_NON_OCCUPIED_MAX <<
+ MVNETA_RXQ_ADD_NON_OCCUPIED_SHIFT));
+ ndescs -= MVNETA_RXQ_ADD_NON_OCCUPIED_MAX;
+ }
+
+ mvreg_write(pp, MVNETA_RXQ_STATUS_UPDATE_REG(rxq->id),
+ (ndescs << MVNETA_RXQ_ADD_NON_OCCUPIED_SHIFT));
+}
+
+/* Get number of RX descriptors occupied by received packets */
+static int mvneta_rxq_busy_desc_num_get(struct mvneta_port *pp,
+ struct mvneta_rx_queue *rxq)
+{
+ u32 val;
+
+ val = mvreg_read(pp, MVNETA_RXQ_STATUS_REG(rxq->id));
+ return val & MVNETA_RXQ_OCCUPIED_ALL_MASK;
+}
+
+/* Update num of rx desc called upon return from rx path or
+ * from mvneta_rxq_drop_pkts().
+ */
+static void mvneta_rxq_desc_num_update(struct mvneta_port *pp,
+ struct mvneta_rx_queue *rxq,
+ int rx_done, int rx_filled)
+{
+ u32 val;
+
+ if ((rx_done <= 0xff) && (rx_filled <= 0xff)) {
+ val = rx_done |
+ (rx_filled << MVNETA_RXQ_ADD_NON_OCCUPIED_SHIFT);
+ mvreg_write(pp, MVNETA_RXQ_STATUS_UPDATE_REG(rxq->id), val);
+ return;
+ }
+
+ /* Only 255 descriptors can be added at once */
+ while ((rx_done > 0) || (rx_filled > 0)) {
+ if (rx_done <= 0xff) {
+ val = rx_done;
+ rx_done = 0;
+ } else {
+ val = 0xff;
+ rx_done -= 0xff;
+ }
+ if (rx_filled <= 0xff) {
+ val |= rx_filled << MVNETA_RXQ_ADD_NON_OCCUPIED_SHIFT;
+ rx_filled = 0;
+ } else {
+ val |= 0xff << MVNETA_RXQ_ADD_NON_OCCUPIED_SHIFT;
+ rx_filled -= 0xff;
+ }
+ mvreg_write(pp, MVNETA_RXQ_STATUS_UPDATE_REG(rxq->id), val);
+ }
+}
+
+/* Get pointer to next RX descriptor to be processed by SW */
+static struct mvneta_rx_desc *
+mvneta_rxq_next_desc_get(struct mvneta_rx_queue *rxq)
+{
+ int rx_desc = rxq->next_desc_to_proc;
+
+ rxq->next_desc_to_proc = MVNETA_QUEUE_NEXT_DESC(rxq, rx_desc);
+ prefetch(rxq->descs + rxq->next_desc_to_proc);
+ return rxq->descs + rx_desc;
+}
+
+/* Change maximum receive size of the port. */
+static void mvneta_max_rx_size_set(struct mvneta_port *pp, int max_rx_size)
+{
+ u32 val;
+
+ val = mvreg_read(pp, MVNETA_GMAC_CTRL_0);
+ val &= ~MVNETA_GMAC_MAX_RX_SIZE_MASK;
+ val |= ((max_rx_size - MVNETA_MH_SIZE) / 2) <<
+ MVNETA_GMAC_MAX_RX_SIZE_SHIFT;
+ mvreg_write(pp, MVNETA_GMAC_CTRL_0, val);
+}
+
+
+/* Set rx queue offset */
+static void mvneta_rxq_offset_set(struct mvneta_port *pp,
+ struct mvneta_rx_queue *rxq,
+ int offset)
+{
+ u32 val;
+
+ val = mvreg_read(pp, MVNETA_RXQ_CONFIG_REG(rxq->id));
+ val &= ~MVNETA_RXQ_PKT_OFFSET_ALL_MASK;
+
+ /* Offset is in */
+ val |= MVNETA_RXQ_PKT_OFFSET_MASK(offset >> 3);
+ mvreg_write(pp, MVNETA_RXQ_CONFIG_REG(rxq->id), val);
+}
+
+
+/* Tx descriptors helper methods */
+
+/* Update HW with number of TX descriptors to be sent */
+static void mvneta_txq_pend_desc_add(struct mvneta_port *pp,
+ struct mvneta_tx_queue *txq,
+ int pend_desc)
+{
+ u32 val;
+
+ /* Only 255 descriptors can be added at once ; Assume caller
+ * process TX desriptors in quanta less than 256
+ */
+ val = pend_desc;
+ mvreg_write(pp, MVNETA_TXQ_UPDATE_REG(txq->id), val);
+}
+
+/* Get pointer to next TX descriptor to be processed (send) by HW */
+static struct mvneta_tx_desc *
+mvneta_txq_next_desc_get(struct mvneta_tx_queue *txq)
+{
+ int tx_desc = txq->next_desc_to_proc;
+
+ txq->next_desc_to_proc = MVNETA_QUEUE_NEXT_DESC(txq, tx_desc);
+ return txq->descs + tx_desc;
+}
+
+/* Release the last allocated TX descriptor. Useful to handle DMA
+ * mapping failures in the TX path.
+ */
+static void mvneta_txq_desc_put(struct mvneta_tx_queue *txq)
+{
+ if (txq->next_desc_to_proc == 0)
+ txq->next_desc_to_proc = txq->last_desc - 1;
+ else
+ txq->next_desc_to_proc--;
+}
+
+/* Set rxq buf size */
+static void mvneta_rxq_buf_size_set(struct mvneta_port *pp,
+ struct mvneta_rx_queue *rxq,
+ int buf_size)
+{
+ u32 val;
+
+ val = mvreg_read(pp, MVNETA_RXQ_SIZE_REG(rxq->id));
+
+ val &= ~MVNETA_RXQ_BUF_SIZE_MASK;
+ val |= ((buf_size >> 3) << MVNETA_RXQ_BUF_SIZE_SHIFT);
+
+ mvreg_write(pp, MVNETA_RXQ_SIZE_REG(rxq->id), val);
+}
+
+/* Disable buffer management (BM) */
+static void mvneta_rxq_bm_disable(struct mvneta_port *pp,
+ struct mvneta_rx_queue *rxq)
+{
+ u32 val;
+
+ val = mvreg_read(pp, MVNETA_RXQ_CONFIG_REG(rxq->id));
+ val &= ~MVNETA_RXQ_HW_BUF_ALLOC;
+ mvreg_write(pp, MVNETA_RXQ_CONFIG_REG(rxq->id), val);
+}
+
+/* Start the Ethernet port RX and TX activity */
+static void mvneta_port_up(struct mvneta_port *pp)
+{
+ int queue;
+ u32 q_map;
+
+ /* Enable all initialized TXs. */
+ mvneta_mib_counters_clear(pp);
+ q_map = 0;
+ for (queue = 0; queue < txq_number; queue++) {
+ struct mvneta_tx_queue *txq = &pp->txqs[queue];
+ if (txq->descs != NULL)
+ q_map |= (1 << queue);
+ }
+ mvreg_write(pp, MVNETA_TXQ_CMD, q_map);
+
+ /* Enable all initialized RXQs. */
+ q_map = 0;
+ for (queue = 0; queue < rxq_number; queue++) {
+ struct mvneta_rx_queue *rxq = &pp->rxqs[queue];
+ if (rxq->descs != NULL)
+ q_map |= (1 << queue);
+ }
+
+ mvreg_write(pp, MVNETA_RXQ_CMD, q_map);
+}
+
+/* Stop the Ethernet port activity */
+static void mvneta_port_down(struct mvneta_port *pp)
+{
+ u32 val;
+ int count;
+
+ /* Stop Rx port activity. Check port Rx activity. */
+ val = mvreg_read(pp, MVNETA_RXQ_CMD) & MVNETA_RXQ_ENABLE_MASK;
+
+ /* Issue stop command for active channels only */
+ if (val != 0)
+ mvreg_write(pp, MVNETA_RXQ_CMD,
+ val << MVNETA_RXQ_DISABLE_SHIFT);
+
+ /* Wait for all Rx activity to terminate. */
+ count = 0;
+ do {
+ if (count++ >= MVNETA_RX_DISABLE_TIMEOUT_MSEC) {
+ netdev_warn(pp->dev,
+ "TIMEOUT for RX stopped ! rx_queue_cmd: 0x08%x\n",
+ val);
+ break;
+ }
+ mdelay(1);
+
+ val = mvreg_read(pp, MVNETA_RXQ_CMD);
+ } while (val & 0xff);
+
+ /* Stop Tx port activity. Check port Tx activity. Issue stop
+ * command for active channels only
+ */
+ val = (mvreg_read(pp, MVNETA_TXQ_CMD)) & MVNETA_TXQ_ENABLE_MASK;
+
+ if (val != 0)
+ mvreg_write(pp, MVNETA_TXQ_CMD,
+ (val << MVNETA_TXQ_DISABLE_SHIFT));
+
+ /* Wait for all Tx activity to terminate. */
+ count = 0;
+ do {
+ if (count++ >= MVNETA_TX_DISABLE_TIMEOUT_MSEC) {
+ netdev_warn(pp->dev,
+ "TIMEOUT for TX stopped status=0x%08x\n",
+ val);
+ break;
+ }
+ mdelay(1);
+
+ /* Check TX Command reg that all Txqs are stopped */
+ val = mvreg_read(pp, MVNETA_TXQ_CMD);
+
+ } while (val & 0xff);
+
+ /* Double check to verify that TX FIFO is empty */
+ count = 0;
+ do {
+ if (count++ >= MVNETA_TX_FIFO_EMPTY_TIMEOUT) {
+ netdev_warn(pp->dev,
+ "TX FIFO empty timeout status=0x08%x\n",
+ val);
+ break;
+ }
+ mdelay(1);
+
+ val = mvreg_read(pp, MVNETA_PORT_STATUS);
+ } while (!(val & MVNETA_TX_FIFO_EMPTY) &&
+ (val & MVNETA_TX_IN_PRGRS));
+
+ udelay(200);
+}
+
+/* Enable the port by setting the port enable bit of the MAC control register */
+static void mvneta_port_enable(struct mvneta_port *pp)
+{
+ u32 val;
+
+ /* Enable port */
+ val = mvreg_read(pp, MVNETA_GMAC_CTRL_0);
+ val |= MVNETA_GMAC0_PORT_ENABLE;
+ mvreg_write(pp, MVNETA_GMAC_CTRL_0, val);
+}
+
+/* Disable the port and wait for about 200 usec before retuning */
+static void mvneta_port_disable(struct mvneta_port *pp)
+{
+ u32 val;
+
+ /* Reset the Enable bit in the Serial Control Register */
+ val = mvreg_read(pp, MVNETA_GMAC_CTRL_0);
+ val &= ~MVNETA_GMAC0_PORT_ENABLE;
+ mvreg_write(pp, MVNETA_GMAC_CTRL_0, val);
+
+ udelay(200);
+}
+
+/* Multicast tables methods */
+
+/* Set all entries in Unicast MAC Table; queue==-1 means reject all */
+static void mvneta_set_ucast_table(struct mvneta_port *pp, int queue)
+{
+ int offset;
+ u32 val;
+
+ if (queue == -1) {
+ val = 0;
+ } else {
+ val = 0x1 | (queue << 1);
+ val |= (val << 24) | (val << 16) | (val << 8);
+ }
+
+ for (offset = 0; offset <= 0xc; offset += 4)
+ mvreg_write(pp, MVNETA_DA_FILT_UCAST_BASE + offset, val);
+}
+
+/* Set all entries in Special Multicast MAC Table; queue==-1 means reject all */
+static void mvneta_set_special_mcast_table(struct mvneta_port *pp, int queue)
+{
+ int offset;
+ u32 val;
+
+ if (queue == -1) {
+ val = 0;
+ } else {
+ val = 0x1 | (queue << 1);
+ val |= (val << 24) | (val << 16) | (val << 8);
+ }
+
+ for (offset = 0; offset <= 0xfc; offset += 4)
+ mvreg_write(pp, MVNETA_DA_FILT_SPEC_MCAST + offset, val);
+
+}
+
+/* Set all entries in Other Multicast MAC Table. queue==-1 means reject all */
+static void mvneta_set_other_mcast_table(struct mvneta_port *pp, int queue)
+{
+ int offset;
+ u32 val;
+
+ if (queue == -1) {
+ memset(pp->mcast_count, 0, sizeof(pp->mcast_count));
+ val = 0;
+ } else {
+ memset(pp->mcast_count, 1, sizeof(pp->mcast_count));
+ val = 0x1 | (queue << 1);
+ val |= (val << 24) | (val << 16) | (val << 8);
+ }
+
+ for (offset = 0; offset <= 0xfc; offset += 4)
+ mvreg_write(pp, MVNETA_DA_FILT_OTH_MCAST + offset, val);
+}
+
+/* This method sets defaults to the NETA port:
+ * Clears interrupt Cause and Mask registers.
+ * Clears all MAC tables.
+ * Sets defaults to all registers.
+ * Resets RX and TX descriptor rings.
+ * Resets PHY.
+ * This method can be called after mvneta_port_down() to return the port
+ * settings to defaults.
+ */
+static void mvneta_defaults_set(struct mvneta_port *pp)
+{
+ int cpu;
+ int queue;
+ u32 val;
+
+ /* Clear all Cause registers */
+ mvreg_write(pp, MVNETA_INTR_NEW_CAUSE, 0);
+ mvreg_write(pp, MVNETA_INTR_OLD_CAUSE, 0);
+ mvreg_write(pp, MVNETA_INTR_MISC_CAUSE, 0);
+
+ /* Mask all interrupts */
+ mvreg_write(pp, MVNETA_INTR_NEW_MASK, 0);
+ mvreg_write(pp, MVNETA_INTR_OLD_MASK, 0);
+ mvreg_write(pp, MVNETA_INTR_MISC_MASK, 0);
+ mvreg_write(pp, MVNETA_INTR_ENABLE, 0);
+
+ /* Enable MBUS Retry bit16 */
+ mvreg_write(pp, MVNETA_MBUS_RETRY, 0x20);
+
+ /* Set CPU queue access map - all CPUs have access to all RX
+ * queues and to all TX queues
+ */
+ for (cpu = 0; cpu < CONFIG_NR_CPUS; cpu++)
+ mvreg_write(pp, MVNETA_CPU_MAP(cpu),
+ (MVNETA_CPU_RXQ_ACCESS_ALL_MASK |
+ MVNETA_CPU_TXQ_ACCESS_ALL_MASK));
+
+ /* Reset RX and TX DMAs */
+ mvreg_write(pp, MVNETA_PORT_RX_RESET, MVNETA_PORT_RX_DMA_RESET);
+ mvreg_write(pp, MVNETA_PORT_TX_RESET, MVNETA_PORT_TX_DMA_RESET);
+
+ /* Disable Legacy WRR, Disable EJP, Release from reset */
+ mvreg_write(pp, MVNETA_TXQ_CMD_1, 0);
+ for (queue = 0; queue < txq_number; queue++) {
+ mvreg_write(pp, MVETH_TXQ_TOKEN_COUNT_REG(queue), 0);
+ mvreg_write(pp, MVETH_TXQ_TOKEN_CFG_REG(queue), 0);
+ }
+
+ mvreg_write(pp, MVNETA_PORT_TX_RESET, 0);
+ mvreg_write(pp, MVNETA_PORT_RX_RESET, 0);
+
+ /* Set Port Acceleration Mode */
+ val = MVNETA_ACC_MODE_EXT;
+ mvreg_write(pp, MVNETA_ACC_MODE, val);
+
+ /* Update val of portCfg register accordingly with all RxQueue types */
+ val = MVNETA_PORT_CONFIG_DEFL_VALUE(rxq_def);
+ mvreg_write(pp, MVNETA_PORT_CONFIG, val);
+
+ val = 0;
+ mvreg_write(pp, MVNETA_PORT_CONFIG_EXTEND, val);
+ mvreg_write(pp, MVNETA_RX_MIN_FRAME_SIZE, 64);
+
+ /* Build PORT_SDMA_CONFIG_REG */
+ val = 0;
+
+ /* Default burst size */
+ val |= MVNETA_TX_BRST_SZ_MASK(MVNETA_SDMA_BRST_SIZE_16);
+ val |= MVNETA_RX_BRST_SZ_MASK(MVNETA_SDMA_BRST_SIZE_16);
+ val |= MVNETA_RX_NO_DATA_SWAP | MVNETA_TX_NO_DATA_SWAP;
+
+#if defined(__BIG_ENDIAN)
+ val |= MVNETA_DESC_SWAP;
+#endif
+
+ /* Assign port SDMA configuration */
+ mvreg_write(pp, MVNETA_SDMA_CONFIG, val);
+
+ /* Disable PHY polling in hardware, since we're using the
+ * kernel phylib to do this.
+ */
+ val = mvreg_read(pp, MVNETA_UNIT_CONTROL);
+ val &= ~MVNETA_PHY_POLLING_ENABLE;
+ mvreg_write(pp, MVNETA_UNIT_CONTROL, val);
+
+ if (pp->use_inband_status) {
+ val = mvreg_read(pp, MVNETA_GMAC_AUTONEG_CONFIG);
+ val &= ~(MVNETA_GMAC_FORCE_LINK_PASS |
+ MVNETA_GMAC_FORCE_LINK_DOWN |
+ MVNETA_GMAC_AN_FLOW_CTRL_EN);
+ val |= MVNETA_GMAC_INBAND_AN_ENABLE |
+ MVNETA_GMAC_AN_SPEED_EN |
+ MVNETA_GMAC_AN_DUPLEX_EN;
+ mvreg_write(pp, MVNETA_GMAC_AUTONEG_CONFIG, val);
+ val = mvreg_read(pp, MVNETA_GMAC_CLOCK_DIVIDER);
+ val |= MVNETA_GMAC_1MS_CLOCK_ENABLE;
+ mvreg_write(pp, MVNETA_GMAC_CLOCK_DIVIDER, val);
+ } else {
+ val = mvreg_read(pp, MVNETA_GMAC_AUTONEG_CONFIG);
+ val &= ~(MVNETA_GMAC_INBAND_AN_ENABLE |
+ MVNETA_GMAC_AN_SPEED_EN |
+ MVNETA_GMAC_AN_DUPLEX_EN);
+ mvreg_write(pp, MVNETA_GMAC_AUTONEG_CONFIG, val);
+ }
+
+ mvneta_set_ucast_table(pp, -1);
+ mvneta_set_special_mcast_table(pp, -1);
+ mvneta_set_other_mcast_table(pp, -1);
+
+ /* Set port interrupt enable register - default enable all */
+ mvreg_write(pp, MVNETA_INTR_ENABLE,
+ (MVNETA_RXQ_INTR_ENABLE_ALL_MASK
+ | MVNETA_TXQ_INTR_ENABLE_ALL_MASK));
+}
+
+/* Set max sizes for tx queues */
+static void mvneta_txq_max_tx_size_set(struct mvneta_port *pp, int max_tx_size)
+
+{
+ u32 val, size, mtu;
+ int queue;
+
+ mtu = max_tx_size * 8;
+ if (mtu > MVNETA_TX_MTU_MAX)
+ mtu = MVNETA_TX_MTU_MAX;
+
+ /* Set MTU */
+ val = mvreg_read(pp, MVNETA_TX_MTU);
+ val &= ~MVNETA_TX_MTU_MAX;
+ val |= mtu;
+ mvreg_write(pp, MVNETA_TX_MTU, val);
+
+ /* TX token size and all TXQs token size must be larger that MTU */
+ val = mvreg_read(pp, MVNETA_TX_TOKEN_SIZE);
+
+ size = val & MVNETA_TX_TOKEN_SIZE_MAX;
+ if (size < mtu) {
+ size = mtu;
+ val &= ~MVNETA_TX_TOKEN_SIZE_MAX;
+ val |= size;
+ mvreg_write(pp, MVNETA_TX_TOKEN_SIZE, val);
+ }
+ for (queue = 0; queue < txq_number; queue++) {
+ val = mvreg_read(pp, MVNETA_TXQ_TOKEN_SIZE_REG(queue));
+
+ size = val & MVNETA_TXQ_TOKEN_SIZE_MAX;
+ if (size < mtu) {
+ size = mtu;
+ val &= ~MVNETA_TXQ_TOKEN_SIZE_MAX;
+ val |= size;
+ mvreg_write(pp, MVNETA_TXQ_TOKEN_SIZE_REG(queue), val);
+ }
+ }
+}
+
+/* Set unicast address */
+static void mvneta_set_ucast_addr(struct mvneta_port *pp, u8 last_nibble,
+ int queue)
+{
+ unsigned int unicast_reg;
+ unsigned int tbl_offset;
+ unsigned int reg_offset;
+
+ /* Locate the Unicast table entry */
+ last_nibble = (0xf & last_nibble);
+
+ /* offset from unicast tbl base */
+ tbl_offset = (last_nibble / 4) * 4;
+
+ /* offset within the above reg */
+ reg_offset = last_nibble % 4;
+
+ unicast_reg = mvreg_read(pp, (MVNETA_DA_FILT_UCAST_BASE + tbl_offset));
+
+ if (queue == -1) {
+ /* Clear accepts frame bit at specified unicast DA tbl entry */
+ unicast_reg &= ~(0xff << (8 * reg_offset));
+ } else {
+ unicast_reg &= ~(0xff << (8 * reg_offset));
+ unicast_reg |= ((0x01 | (queue << 1)) << (8 * reg_offset));
+ }
+
+ mvreg_write(pp, (MVNETA_DA_FILT_UCAST_BASE + tbl_offset), unicast_reg);
+}
+
+/* Set mac address */
+static void mvneta_mac_addr_set(struct mvneta_port *pp, unsigned char *addr,
+ int queue)
+{
+ unsigned int mac_h;
+ unsigned int mac_l;
+
+ if (queue != -1) {
+ mac_l = (addr[4] << 8) | (addr[5]);
+ mac_h = (addr[0] << 24) | (addr[1] << 16) |
+ (addr[2] << 8) | (addr[3] << 0);
+
+ mvreg_write(pp, MVNETA_MAC_ADDR_LOW, mac_l);
+ mvreg_write(pp, MVNETA_MAC_ADDR_HIGH, mac_h);
+ }
+
+ /* Accept frames of this address */
+ mvneta_set_ucast_addr(pp, addr[5], queue);
+}
+
+/* Set the number of packets that will be received before RX interrupt
+ * will be generated by HW.
+ */
+static void mvneta_rx_pkts_coal_set(struct mvneta_port *pp,
+ struct mvneta_rx_queue *rxq, u32 value)
+{
+ mvreg_write(pp, MVNETA_RXQ_THRESHOLD_REG(rxq->id),
+ value | MVNETA_RXQ_NON_OCCUPIED(0));
+ rxq->pkts_coal = value;
+}
+
+/* Set the time delay in usec before RX interrupt will be generated by
+ * HW.
+ */
+static void mvneta_rx_time_coal_set(struct mvneta_port *pp,
+ struct mvneta_rx_queue *rxq, u32 value)
+{
+ u32 val;
+ unsigned long clk_rate;
+
+ clk_rate = clk_get_rate(pp->clk);
+ val = (clk_rate / 1000000) * value;
+
+ mvreg_write(pp, MVNETA_RXQ_TIME_COAL_REG(rxq->id), val);
+ rxq->time_coal = value;
+}
+
+/* Set threshold for TX_DONE pkts coalescing */
+static void mvneta_tx_done_pkts_coal_set(struct mvneta_port *pp,
+ struct mvneta_tx_queue *txq, u32 value)
+{
+ u32 val;
+
+ val = mvreg_read(pp, MVNETA_TXQ_SIZE_REG(txq->id));
+
+ val &= ~MVNETA_TXQ_SENT_THRESH_ALL_MASK;
+ val |= MVNETA_TXQ_SENT_THRESH_MASK(value);
+
+ mvreg_write(pp, MVNETA_TXQ_SIZE_REG(txq->id), val);
+
+ txq->done_pkts_coal = value;
+}
+
+/* Handle rx descriptor fill by setting buf_cookie and buf_phys_addr */
+static void mvneta_rx_desc_fill(struct mvneta_rx_desc *rx_desc,
+ u32 phys_addr, u32 cookie)
+{
+ rx_desc->buf_cookie = cookie;
+ rx_desc->buf_phys_addr = phys_addr;
+}
+
+/* Decrement sent descriptors counter */
+static void mvneta_txq_sent_desc_dec(struct mvneta_port *pp,
+ struct mvneta_tx_queue *txq,
+ int sent_desc)
+{
+ u32 val;
+
+ /* Only 255 TX descriptors can be updated at once */
+ while (sent_desc > 0xff) {
+ val = 0xff << MVNETA_TXQ_DEC_SENT_SHIFT;
+ mvreg_write(pp, MVNETA_TXQ_UPDATE_REG(txq->id), val);
+ sent_desc = sent_desc - 0xff;
+ }
+
+ val = sent_desc << MVNETA_TXQ_DEC_SENT_SHIFT;
+ mvreg_write(pp, MVNETA_TXQ_UPDATE_REG(txq->id), val);
+}
+
+/* Get number of TX descriptors already sent by HW */
+static int mvneta_txq_sent_desc_num_get(struct mvneta_port *pp,
+ struct mvneta_tx_queue *txq)
+{
+ u32 val;
+ int sent_desc;
+
+ val = mvreg_read(pp, MVNETA_TXQ_STATUS_REG(txq->id));
+ sent_desc = (val & MVNETA_TXQ_SENT_DESC_MASK) >>
+ MVNETA_TXQ_SENT_DESC_SHIFT;
+
+ return sent_desc;
+}
+
+/* Get number of sent descriptors and decrement counter.
+ * The number of sent descriptors is returned.
+ */
+static int mvneta_txq_sent_desc_proc(struct mvneta_port *pp,
+ struct mvneta_tx_queue *txq)
+{
+ int sent_desc;
+
+ /* Get number of sent descriptors */
+ sent_desc = mvneta_txq_sent_desc_num_get(pp, txq);
+
+ /* Decrement sent descriptors counter */
+ if (sent_desc)
+ mvneta_txq_sent_desc_dec(pp, txq, sent_desc);
+
+ return sent_desc;
+}
+
+/* Set TXQ descriptors fields relevant for CSUM calculation */
+static u32 mvneta_txq_desc_csum(int l3_offs, int l3_proto,
+ int ip_hdr_len, int l4_proto)
+{
+ u32 command;
+
+ /* Fields: L3_offset, IP_hdrlen, L3_type, G_IPv4_chk,
+ * G_L4_chk, L4_type; required only for checksum
+ * calculation
+ */
+ command = l3_offs << MVNETA_TX_L3_OFF_SHIFT;
+ command |= ip_hdr_len << MVNETA_TX_IP_HLEN_SHIFT;
+
+ if (l3_proto == htons(ETH_P_IP))
+ command |= MVNETA_TXD_IP_CSUM;
+ else
+ command |= MVNETA_TX_L3_IP6;
+
+ if (l4_proto == IPPROTO_TCP)
+ command |= MVNETA_TX_L4_CSUM_FULL;
+ else if (l4_proto == IPPROTO_UDP)
+ command |= MVNETA_TX_L4_UDP | MVNETA_TX_L4_CSUM_FULL;
+ else
+ command |= MVNETA_TX_L4_CSUM_NOT;
+
+ return command;
+}
+
+
+/* Display more error info */
+static void mvneta_rx_error(struct mvneta_port *pp,
+ struct mvneta_rx_desc *rx_desc)
+{
+ u32 status = rx_desc->status;
+
+ if (!mvneta_rxq_desc_is_first_last(status)) {
+ netdev_err(pp->dev,
+ "bad rx status %08x (buffer oversize), size=%d\n",
+ status, rx_desc->data_size);
+ return;
+ }
+
+ switch (status & MVNETA_RXD_ERR_CODE_MASK) {
+ case MVNETA_RXD_ERR_CRC:
+ netdev_err(pp->dev, "bad rx status %08x (crc error), size=%d\n",
+ status, rx_desc->data_size);
+ break;
+ case MVNETA_RXD_ERR_OVERRUN:
+ netdev_err(pp->dev, "bad rx status %08x (overrun error), size=%d\n",
+ status, rx_desc->data_size);
+ break;
+ case MVNETA_RXD_ERR_LEN:
+ netdev_err(pp->dev, "bad rx status %08x (max frame length error), size=%d\n",
+ status, rx_desc->data_size);
+ break;
+ case MVNETA_RXD_ERR_RESOURCE:
+ netdev_err(pp->dev, "bad rx status %08x (resource error), size=%d\n",
+ status, rx_desc->data_size);
+ break;
+ }
+}
+
+/* Handle RX checksum offload based on the descriptor's status */
+static void mvneta_rx_csum(struct mvneta_port *pp, u32 status,
+ struct sk_buff *skb)
+{
+ if ((status & MVNETA_RXD_L3_IP4) &&
+ (status & MVNETA_RXD_L4_CSUM_OK)) {
+ skb->csum = 0;
+ skb->ip_summed = CHECKSUM_UNNECESSARY;
+ return;
+ }
+
+ skb->ip_summed = CHECKSUM_NONE;
+}
+
+/* Return tx queue pointer (find last set bit) according to <cause> returned
+ * form tx_done reg. <cause> must not be null. The return value is always a
+ * valid queue for matching the first one found in <cause>.
+ */
+static struct mvneta_tx_queue *mvneta_tx_done_policy(struct mvneta_port *pp,
+ u32 cause)
+{
+ int queue = fls(cause) - 1;
+
+ return &pp->txqs[queue];
+}
+
+/* Free tx queue skbuffs */
+static void mvneta_txq_bufs_free(struct mvneta_port *pp,
+ struct mvneta_tx_queue *txq, int num)
+{
+ int i;
+
+ for (i = 0; i < num; i++) {
+ struct mvneta_tx_desc *tx_desc = txq->descs +
+ txq->txq_get_index;
+ struct sk_buff *skb = txq->tx_skb[txq->txq_get_index];
+
+ mvneta_txq_inc_get(txq);
+
+ if (!IS_TSO_HEADER(txq, tx_desc->buf_phys_addr))
+ dma_unmap_single(pp->dev->dev.parent,
+ tx_desc->buf_phys_addr,
+ tx_desc->data_size, DMA_TO_DEVICE);
+ if (!skb)
+ continue;
+ dev_kfree_skb_any(skb);
+ }
+}
+
+/* Handle end of transmission */
+static void mvneta_txq_done(struct mvneta_port *pp,
+ struct mvneta_tx_queue *txq)
+{
+ struct netdev_queue *nq = netdev_get_tx_queue(pp->dev, txq->id);
+ int tx_done;
+
+ tx_done = mvneta_txq_sent_desc_proc(pp, txq);
+ if (!tx_done)
+ return;
+
+ mvneta_txq_bufs_free(pp, txq, tx_done);
+
+ txq->count -= tx_done;
+
+ if (netif_tx_queue_stopped(nq)) {
+ if (txq->count <= txq->tx_wake_threshold)
+ netif_tx_wake_queue(nq);
+ }
+}
+
+static void *mvneta_frag_alloc(const struct mvneta_port *pp)
+{
+ if (likely(pp->frag_size <= PAGE_SIZE))
+ return netdev_alloc_frag(pp->frag_size);
+ else
+ return kmalloc(pp->frag_size, GFP_ATOMIC);
+}
+
+static void mvneta_frag_free(const struct mvneta_port *pp, void *data)
+{
+ if (likely(pp->frag_size <= PAGE_SIZE))
+ put_page(virt_to_head_page(data));
+ else
+ kfree(data);
+}
+
+/* Refill processing */
+static int mvneta_rx_refill(struct mvneta_port *pp,
+ struct mvneta_rx_desc *rx_desc)
+
+{
+ dma_addr_t phys_addr;
+ void *data;
+
+ data = mvneta_frag_alloc(pp);
+ if (!data)
+ return -ENOMEM;
+
+ phys_addr = dma_map_single(pp->dev->dev.parent, data,
+ MVNETA_RX_BUF_SIZE(pp->pkt_size),
+ DMA_FROM_DEVICE);
+ if (unlikely(dma_mapping_error(pp->dev->dev.parent, phys_addr))) {
+ mvneta_frag_free(pp, data);
+ return -ENOMEM;
+ }
+
+ mvneta_rx_desc_fill(rx_desc, phys_addr, (u32)data);
+ return 0;
+}
+
+/* Handle tx checksum */
+static u32 mvneta_skb_tx_csum(struct mvneta_port *pp, struct sk_buff *skb)
+{
+ if (skb->ip_summed == CHECKSUM_PARTIAL) {
+ int ip_hdr_len = 0;
+ __be16 l3_proto = vlan_get_protocol(skb);
+ u8 l4_proto;
+
+ if (l3_proto == htons(ETH_P_IP)) {
+ struct iphdr *ip4h = ip_hdr(skb);
+
+ /* Calculate IPv4 checksum and L4 checksum */
+ ip_hdr_len = ip4h->ihl;
+ l4_proto = ip4h->protocol;
+ } else if (l3_proto == htons(ETH_P_IPV6)) {
+ struct ipv6hdr *ip6h = ipv6_hdr(skb);
+
+ /* Read l4_protocol from one of IPv6 extra headers */
+ if (skb_network_header_len(skb) > 0)
+ ip_hdr_len = (skb_network_header_len(skb) >> 2);
+ l4_proto = ip6h->nexthdr;
+ } else
+ return MVNETA_TX_L4_CSUM_NOT;
+
+ return mvneta_txq_desc_csum(skb_network_offset(skb),
+ l3_proto, ip_hdr_len, l4_proto);
+ }
+
+ return MVNETA_TX_L4_CSUM_NOT;
+}
+
+/* Returns rx queue pointer (find last set bit) according to causeRxTx
+ * value
+ */
+static struct mvneta_rx_queue *mvneta_rx_policy(struct mvneta_port *pp,
+ u32 cause)
+{
+ int queue = fls(cause >> 8) - 1;
+
+ return (queue < 0 || queue >= rxq_number) ? NULL : &pp->rxqs[queue];
+}
+
+/* Drop packets received by the RXQ and free buffers */
+static void mvneta_rxq_drop_pkts(struct mvneta_port *pp,
+ struct mvneta_rx_queue *rxq)
+{
+ int rx_done, i;
+
+ rx_done = mvneta_rxq_busy_desc_num_get(pp, rxq);
+ for (i = 0; i < rxq->size; i++) {
+ struct mvneta_rx_desc *rx_desc = rxq->descs + i;
+ void *data = (void *)rx_desc->buf_cookie;
+
+ mvneta_frag_free(pp, data);
+ dma_unmap_single(pp->dev->dev.parent, rx_desc->buf_phys_addr,
+ MVNETA_RX_BUF_SIZE(pp->pkt_size), DMA_FROM_DEVICE);
+ }
+
+ if (rx_done)
+ mvneta_rxq_desc_num_update(pp, rxq, rx_done, rx_done);
+}
+
+/* Main rx processing */
+static int mvneta_rx(struct mvneta_port *pp, int rx_todo,
+ struct mvneta_rx_queue *rxq)
+{
+ struct net_device *dev = pp->dev;
+ int rx_done, rx_filled;
+ u32 rcvd_pkts = 0;
+ u32 rcvd_bytes = 0;
+
+ /* Get number of received packets */
+ rx_done = mvneta_rxq_busy_desc_num_get(pp, rxq);
+
+ if (rx_todo > rx_done)
+ rx_todo = rx_done;
+
+ rx_done = 0;
+ rx_filled = 0;
+
+ /* Fairness NAPI loop */
+ while (rx_done < rx_todo) {
+ struct mvneta_rx_desc *rx_desc = mvneta_rxq_next_desc_get(rxq);
+ struct sk_buff *skb;
+ unsigned char *data;
+ u32 rx_status;
+ int rx_bytes, err;
+
+ rx_done++;
+ rx_filled++;
+ rx_status = rx_desc->status;
+ rx_bytes = rx_desc->data_size - (ETH_FCS_LEN + MVNETA_MH_SIZE);
+ data = (unsigned char *)rx_desc->buf_cookie;
+
+ if (!mvneta_rxq_desc_is_first_last(rx_status) ||
+ (rx_status & MVNETA_RXD_ERR_SUMMARY)) {
+ err_drop_frame:
+ dev->stats.rx_errors++;
+ mvneta_rx_error(pp, rx_desc);
+ /* leave the descriptor untouched */
+ continue;
+ }
+
+ if (rx_bytes <= rx_copybreak) {
+ /* better copy a small frame and not unmap the DMA region */
+ skb = netdev_alloc_skb_ip_align(dev, rx_bytes);
+ if (unlikely(!skb))
+ goto err_drop_frame;
+
+ dma_sync_single_range_for_cpu(dev->dev.parent,
+ rx_desc->buf_phys_addr,
+ MVNETA_MH_SIZE + NET_SKB_PAD,
+ rx_bytes,
+ DMA_FROM_DEVICE);
+ memcpy(skb_put(skb, rx_bytes),
+ data + MVNETA_MH_SIZE + NET_SKB_PAD,
+ rx_bytes);
+
+ skb->protocol = eth_type_trans(skb, dev);
+ mvneta_rx_csum(pp, rx_status, skb);
+ napi_gro_receive(&pp->napi, skb);
+
+ rcvd_pkts++;
+ rcvd_bytes += rx_bytes;
+
+ /* leave the descriptor and buffer untouched */
+ continue;
+ }
+
+ skb = build_skb(data, pp->frag_size > PAGE_SIZE ? 0 : pp->frag_size);
+ if (!skb)
+ goto err_drop_frame;
+
+ dma_unmap_single(dev->dev.parent, rx_desc->buf_phys_addr,
+ MVNETA_RX_BUF_SIZE(pp->pkt_size), DMA_FROM_DEVICE);
+
+ rcvd_pkts++;
+ rcvd_bytes += rx_bytes;
+
+ /* Linux processing */
+ skb_reserve(skb, MVNETA_MH_SIZE + NET_SKB_PAD);
+ skb_put(skb, rx_bytes);
+
+ skb->protocol = eth_type_trans(skb, dev);
+
+ mvneta_rx_csum(pp, rx_status, skb);
+
+ napi_gro_receive(&pp->napi, skb);
+
+ /* Refill processing */
+ err = mvneta_rx_refill(pp, rx_desc);
+ if (err) {
+ netdev_err(dev, "Linux processing - Can't refill\n");
+ rxq->missed++;
+ rx_filled--;
+ }
+ }
+
+ if (rcvd_pkts) {
+ struct mvneta_pcpu_stats *stats = this_cpu_ptr(pp->stats);
+
+ u64_stats_update_begin(&stats->syncp);
+ stats->rx_packets += rcvd_pkts;
+ stats->rx_bytes += rcvd_bytes;
+ u64_stats_update_end(&stats->syncp);
+ }
+
+ /* Update rxq management counters */
+ mvneta_rxq_desc_num_update(pp, rxq, rx_done, rx_filled);
+
+ return rx_done;
+}
+
+static inline void
+mvneta_tso_put_hdr(struct sk_buff *skb,
+ struct mvneta_port *pp, struct mvneta_tx_queue *txq)
+{
+ struct mvneta_tx_desc *tx_desc;
+ int hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
+
+ txq->tx_skb[txq->txq_put_index] = NULL;
+ tx_desc = mvneta_txq_next_desc_get(txq);
+ tx_desc->data_size = hdr_len;
+ tx_desc->command = mvneta_skb_tx_csum(pp, skb);
+ tx_desc->command |= MVNETA_TXD_F_DESC;
+ tx_desc->buf_phys_addr = txq->tso_hdrs_phys +
+ txq->txq_put_index * TSO_HEADER_SIZE;
+ mvneta_txq_inc_put(txq);
+}
+
+static inline int
+mvneta_tso_put_data(struct net_device *dev, struct mvneta_tx_queue *txq,
+ struct sk_buff *skb, char *data, int size,
+ bool last_tcp, bool is_last)
+{
+ struct mvneta_tx_desc *tx_desc;
+
+ tx_desc = mvneta_txq_next_desc_get(txq);
+ tx_desc->data_size = size;
+ tx_desc->buf_phys_addr = dma_map_single(dev->dev.parent, data,
+ size, DMA_TO_DEVICE);
+ if (unlikely(dma_mapping_error(dev->dev.parent,
+ tx_desc->buf_phys_addr))) {
+ mvneta_txq_desc_put(txq);
+ return -ENOMEM;
+ }
+
+ tx_desc->command = 0;
+ txq->tx_skb[txq->txq_put_index] = NULL;
+
+ if (last_tcp) {
+ /* last descriptor in the TCP packet */
+ tx_desc->command = MVNETA_TXD_L_DESC;
+
+ /* last descriptor in SKB */
+ if (is_last)
+ txq->tx_skb[txq->txq_put_index] = skb;
+ }
+ mvneta_txq_inc_put(txq);
+ return 0;
+}
+
+static int mvneta_tx_tso(struct sk_buff *skb, struct net_device *dev,
+ struct mvneta_tx_queue *txq)
+{
+ int total_len, data_left;
+ int desc_count = 0;
+ struct mvneta_port *pp = netdev_priv(dev);
+ struct tso_t tso;
+ int hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
+ int i;
+
+ /* Count needed descriptors */
+ if ((txq->count + tso_count_descs(skb)) >= txq->size)
+ return 0;
+
+ if (skb_headlen(skb) < (skb_transport_offset(skb) + tcp_hdrlen(skb))) {
+ pr_info("*** Is this even possible???!?!?\n");
+ return 0;
+ }
+
+ /* Initialize the TSO handler, and prepare the first payload */
+ tso_start(skb, &tso);
+
+ total_len = skb->len - hdr_len;
+ while (total_len > 0) {
+ char *hdr;
+
+ data_left = min_t(int, skb_shinfo(skb)->gso_size, total_len);
+ total_len -= data_left;
+ desc_count++;
+
+ /* prepare packet headers: MAC + IP + TCP */
+ hdr = txq->tso_hdrs + txq->txq_put_index * TSO_HEADER_SIZE;
+ tso_build_hdr(skb, hdr, &tso, data_left, total_len == 0);
+
+ mvneta_tso_put_hdr(skb, pp, txq);
+
+ while (data_left > 0) {
+ int size;
+ desc_count++;
+
+ size = min_t(int, tso.size, data_left);
+
+ if (mvneta_tso_put_data(dev, txq, skb,
+ tso.data, size,
+ size == data_left,
+ total_len == 0))
+ goto err_release;
+ data_left -= size;
+
+ tso_build_data(skb, &tso, size);
+ }
+ }
+
+ return desc_count;
+
+err_release:
+ /* Release all used data descriptors; header descriptors must not
+ * be DMA-unmapped.
+ */
+ for (i = desc_count - 1; i >= 0; i--) {
+ struct mvneta_tx_desc *tx_desc = txq->descs + i;
+ if (!IS_TSO_HEADER(txq, tx_desc->buf_phys_addr))
+ dma_unmap_single(pp->dev->dev.parent,
+ tx_desc->buf_phys_addr,
+ tx_desc->data_size,
+ DMA_TO_DEVICE);
+ mvneta_txq_desc_put(txq);
+ }
+ return 0;
+}
+
+/* Handle tx fragmentation processing */
+static int mvneta_tx_frag_process(struct mvneta_port *pp, struct sk_buff *skb,
+ struct mvneta_tx_queue *txq)
+{
+ struct mvneta_tx_desc *tx_desc;
+ int i, nr_frags = skb_shinfo(skb)->nr_frags;
+
+ for (i = 0; i < nr_frags; i++) {
+ skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
+ void *addr = page_address(frag->page.p) + frag->page_offset;
+
+ tx_desc = mvneta_txq_next_desc_get(txq);
+ tx_desc->data_size = frag->size;
+
+ tx_desc->buf_phys_addr =
+ dma_map_single(pp->dev->dev.parent, addr,
+ tx_desc->data_size, DMA_TO_DEVICE);
+
+ if (dma_mapping_error(pp->dev->dev.parent,
+ tx_desc->buf_phys_addr)) {
+ mvneta_txq_desc_put(txq);
+ goto error;
+ }
+
+ if (i == nr_frags - 1) {
+ /* Last descriptor */
+ tx_desc->command = MVNETA_TXD_L_DESC | MVNETA_TXD_Z_PAD;
+ txq->tx_skb[txq->txq_put_index] = skb;
+ } else {
+ /* Descriptor in the middle: Not First, Not Last */
+ tx_desc->command = 0;
+ txq->tx_skb[txq->txq_put_index] = NULL;
+ }
+ mvneta_txq_inc_put(txq);
+ }
+
+ return 0;
+
+error:
+ /* Release all descriptors that were used to map fragments of
+ * this packet, as well as the corresponding DMA mappings
+ */
+ for (i = i - 1; i >= 0; i--) {
+ tx_desc = txq->descs + i;
+ dma_unmap_single(pp->dev->dev.parent,
+ tx_desc->buf_phys_addr,
+ tx_desc->data_size,
+ DMA_TO_DEVICE);
+ mvneta_txq_desc_put(txq);
+ }
+
+ return -ENOMEM;
+}
+
+/* Main tx processing */
+static int mvneta_tx(struct sk_buff *skb, struct net_device *dev)
+{
+ struct mvneta_port *pp = netdev_priv(dev);
+ u16 txq_id = skb_get_queue_mapping(skb);
+ struct mvneta_tx_queue *txq = &pp->txqs[txq_id];
+ struct mvneta_tx_desc *tx_desc;
+ int len = skb->len;
+ int frags = 0;
+ u32 tx_cmd;
+
+ if (!netif_running(dev))
+ goto out;
+
+ if (skb_is_gso(skb)) {
+ frags = mvneta_tx_tso(skb, dev, txq);
+ goto out;
+ }
+
+ frags = skb_shinfo(skb)->nr_frags + 1;
+
+ /* Get a descriptor for the first part of the packet */
+ tx_desc = mvneta_txq_next_desc_get(txq);
+
+ tx_cmd = mvneta_skb_tx_csum(pp, skb);
+
+ tx_desc->data_size = skb_headlen(skb);
+
+ tx_desc->buf_phys_addr = dma_map_single(dev->dev.parent, skb->data,
+ tx_desc->data_size,
+ DMA_TO_DEVICE);
+ if (unlikely(dma_mapping_error(dev->dev.parent,
+ tx_desc->buf_phys_addr))) {
+ mvneta_txq_desc_put(txq);
+ frags = 0;
+ goto out;
+ }
+
+ if (frags == 1) {
+ /* First and Last descriptor */
+ tx_cmd |= MVNETA_TXD_FLZ_DESC;
+ tx_desc->command = tx_cmd;
+ txq->tx_skb[txq->txq_put_index] = skb;
+ mvneta_txq_inc_put(txq);
+ } else {
+ /* First but not Last */
+ tx_cmd |= MVNETA_TXD_F_DESC;
+ txq->tx_skb[txq->txq_put_index] = NULL;
+ mvneta_txq_inc_put(txq);
+ tx_desc->command = tx_cmd;
+ /* Continue with other skb fragments */
+ if (mvneta_tx_frag_process(pp, skb, txq)) {
+ dma_unmap_single(dev->dev.parent,
+ tx_desc->buf_phys_addr,
+ tx_desc->data_size,
+ DMA_TO_DEVICE);
+ mvneta_txq_desc_put(txq);
+ frags = 0;
+ goto out;
+ }
+ }
+
+out:
+ if (frags > 0) {
+ struct mvneta_pcpu_stats *stats = this_cpu_ptr(pp->stats);
+ struct netdev_queue *nq = netdev_get_tx_queue(dev, txq_id);
+
+ txq->count += frags;
+ mvneta_txq_pend_desc_add(pp, txq, frags);
+
+ if (txq->count >= txq->tx_stop_threshold)
+ netif_tx_stop_queue(nq);
+
+ u64_stats_update_begin(&stats->syncp);
+ stats->tx_packets++;
+ stats->tx_bytes += len;
+ u64_stats_update_end(&stats->syncp);
+ } else {
+ dev->stats.tx_dropped++;
+ dev_kfree_skb_any(skb);
+ }
+
+ return NETDEV_TX_OK;
+}
+
+
+/* Free tx resources, when resetting a port */
+static void mvneta_txq_done_force(struct mvneta_port *pp,
+ struct mvneta_tx_queue *txq)
+
+{
+ int tx_done = txq->count;
+
+ mvneta_txq_bufs_free(pp, txq, tx_done);
+
+ /* reset txq */
+ txq->count = 0;
+ txq->txq_put_index = 0;
+ txq->txq_get_index = 0;
+}
+
+/* Handle tx done - called in softirq context. The <cause_tx_done> argument
+ * must be a valid cause according to MVNETA_TXQ_INTR_MASK_ALL.
+ */
+static void mvneta_tx_done_gbe(struct mvneta_port *pp, u32 cause_tx_done)
+{
+ struct mvneta_tx_queue *txq;
+ struct netdev_queue *nq;
+
+ while (cause_tx_done) {
+ txq = mvneta_tx_done_policy(pp, cause_tx_done);
+
+ nq = netdev_get_tx_queue(pp->dev, txq->id);
+ __netif_tx_lock(nq, smp_processor_id());
+
+ if (txq->count)
+ mvneta_txq_done(pp, txq);
+
+ __netif_tx_unlock(nq);
+ cause_tx_done &= ~((1 << txq->id));
+ }
+}
+
+/* Compute crc8 of the specified address, using a unique algorithm ,
+ * according to hw spec, different than generic crc8 algorithm
+ */
+static int mvneta_addr_crc(unsigned char *addr)
+{
+ int crc = 0;
+ int i;
+
+ for (i = 0; i < ETH_ALEN; i++) {
+ int j;
+
+ crc = (crc ^ addr[i]) << 8;
+ for (j = 7; j >= 0; j--) {
+ if (crc & (0x100 << j))
+ crc ^= 0x107 << j;
+ }
+ }
+
+ return crc;
+}
+
+/* This method controls the net device special MAC multicast support.
+ * The Special Multicast Table for MAC addresses supports MAC of the form
+ * 0x01-00-5E-00-00-XX (where XX is between 0x00 and 0xFF).
+ * The MAC DA[7:0] bits are used as a pointer to the Special Multicast
+ * Table entries in the DA-Filter table. This method set the Special
+ * Multicast Table appropriate entry.
+ */
+static void mvneta_set_special_mcast_addr(struct mvneta_port *pp,
+ unsigned char last_byte,
+ int queue)
+{
+ unsigned int smc_table_reg;
+ unsigned int tbl_offset;
+ unsigned int reg_offset;
+
+ /* Register offset from SMC table base */
+ tbl_offset = (last_byte / 4);
+ /* Entry offset within the above reg */
+ reg_offset = last_byte % 4;
+
+ smc_table_reg = mvreg_read(pp, (MVNETA_DA_FILT_SPEC_MCAST
+ + tbl_offset * 4));
+
+ if (queue == -1)
+ smc_table_reg &= ~(0xff << (8 * reg_offset));
+ else {
+ smc_table_reg &= ~(0xff << (8 * reg_offset));
+ smc_table_reg |= ((0x01 | (queue << 1)) << (8 * reg_offset));
+ }
+
+ mvreg_write(pp, MVNETA_DA_FILT_SPEC_MCAST + tbl_offset * 4,
+ smc_table_reg);
+}
+
+/* This method controls the network device Other MAC multicast support.
+ * The Other Multicast Table is used for multicast of another type.
+ * A CRC-8 is used as an index to the Other Multicast Table entries
+ * in the DA-Filter table.
+ * The method gets the CRC-8 value from the calling routine and
+ * sets the Other Multicast Table appropriate entry according to the
+ * specified CRC-8 .
+ */
+static void mvneta_set_other_mcast_addr(struct mvneta_port *pp,
+ unsigned char crc8,
+ int queue)
+{
+ unsigned int omc_table_reg;
+ unsigned int tbl_offset;
+ unsigned int reg_offset;
+
+ tbl_offset = (crc8 / 4) * 4; /* Register offset from OMC table base */
+ reg_offset = crc8 % 4; /* Entry offset within the above reg */
+
+ omc_table_reg = mvreg_read(pp, MVNETA_DA_FILT_OTH_MCAST + tbl_offset);
+
+ if (queue == -1) {
+ /* Clear accepts frame bit at specified Other DA table entry */
+ omc_table_reg &= ~(0xff << (8 * reg_offset));
+ } else {
+ omc_table_reg &= ~(0xff << (8 * reg_offset));
+ omc_table_reg |= ((0x01 | (queue << 1)) << (8 * reg_offset));
+ }
+
+ mvreg_write(pp, MVNETA_DA_FILT_OTH_MCAST + tbl_offset, omc_table_reg);
+}
+
+/* The network device supports multicast using two tables:
+ * 1) Special Multicast Table for MAC addresses of the form
+ * 0x01-00-5E-00-00-XX (where XX is between 0x00 and 0xFF).
+ * The MAC DA[7:0] bits are used as a pointer to the Special Multicast
+ * Table entries in the DA-Filter table.
+ * 2) Other Multicast Table for multicast of another type. A CRC-8 value
+ * is used as an index to the Other Multicast Table entries in the
+ * DA-Filter table.
+ */
+static int mvneta_mcast_addr_set(struct mvneta_port *pp, unsigned char *p_addr,
+ int queue)
+{
+ unsigned char crc_result = 0;
+
+ if (memcmp(p_addr, "\x01\x00\x5e\x00\x00", 5) == 0) {
+ mvneta_set_special_mcast_addr(pp, p_addr[5], queue);
+ return 0;
+ }
+
+ crc_result = mvneta_addr_crc(p_addr);
+ if (queue == -1) {
+ if (pp->mcast_count[crc_result] == 0) {
+ netdev_info(pp->dev, "No valid Mcast for crc8=0x%02x\n",
+ crc_result);
+ return -EINVAL;
+ }
+
+ pp->mcast_count[crc_result]--;
+ if (pp->mcast_count[crc_result] != 0) {
+ netdev_info(pp->dev,
+ "After delete there are %d valid Mcast for crc8=0x%02x\n",
+ pp->mcast_count[crc_result], crc_result);
+ return -EINVAL;
+ }
+ } else
+ pp->mcast_count[crc_result]++;
+
+ mvneta_set_other_mcast_addr(pp, crc_result, queue);
+
+ return 0;
+}
+
+/* Configure Fitering mode of Ethernet port */
+static void mvneta_rx_unicast_promisc_set(struct mvneta_port *pp,
+ int is_promisc)
+{
+ u32 port_cfg_reg, val;
+
+ port_cfg_reg = mvreg_read(pp, MVNETA_PORT_CONFIG);
+
+ val = mvreg_read(pp, MVNETA_TYPE_PRIO);
+
+ /* Set / Clear UPM bit in port configuration register */
+ if (is_promisc) {
+ /* Accept all Unicast addresses */
+ port_cfg_reg |= MVNETA_UNI_PROMISC_MODE;
+ val |= MVNETA_FORCE_UNI;
+ mvreg_write(pp, MVNETA_MAC_ADDR_LOW, 0xffff);
+ mvreg_write(pp, MVNETA_MAC_ADDR_HIGH, 0xffffffff);
+ } else {
+ /* Reject all Unicast addresses */
+ port_cfg_reg &= ~MVNETA_UNI_PROMISC_MODE;
+ val &= ~MVNETA_FORCE_UNI;
+ }
+
+ mvreg_write(pp, MVNETA_PORT_CONFIG, port_cfg_reg);
+ mvreg_write(pp, MVNETA_TYPE_PRIO, val);
+}
+
+/* register unicast and multicast addresses */
+static void mvneta_set_rx_mode(struct net_device *dev)
+{
+ struct mvneta_port *pp = netdev_priv(dev);
+ struct netdev_hw_addr *ha;
+
+ if (dev->flags & IFF_PROMISC) {
+ /* Accept all: Multicast + Unicast */
+ mvneta_rx_unicast_promisc_set(pp, 1);
+ mvneta_set_ucast_table(pp, rxq_def);
+ mvneta_set_special_mcast_table(pp, rxq_def);
+ mvneta_set_other_mcast_table(pp, rxq_def);
+ } else {
+ /* Accept single Unicast */
+ mvneta_rx_unicast_promisc_set(pp, 0);
+ mvneta_set_ucast_table(pp, -1);
+ mvneta_mac_addr_set(pp, dev->dev_addr, rxq_def);
+
+ if (dev->flags & IFF_ALLMULTI) {
+ /* Accept all multicast */
+ mvneta_set_special_mcast_table(pp, rxq_def);
+ mvneta_set_other_mcast_table(pp, rxq_def);
+ } else {
+ /* Accept only initialized multicast */
+ mvneta_set_special_mcast_table(pp, -1);
+ mvneta_set_other_mcast_table(pp, -1);
+
+ if (!netdev_mc_empty(dev)) {
+ netdev_for_each_mc_addr(ha, dev) {
+ mvneta_mcast_addr_set(pp, ha->addr,
+ rxq_def);
+ }
+ }
+ }
+ }
+}
+
+/* Interrupt handling - the callback for request_irq() */
+static irqreturn_t mvneta_isr(int irq, void *dev_id)
+{
+ struct mvneta_port *pp = (struct mvneta_port *)dev_id;
+
+ /* Mask all interrupts */
+ mvreg_write(pp, MVNETA_INTR_NEW_MASK, 0);
+
+ napi_schedule(&pp->napi);
+
+ return IRQ_HANDLED;
+}
+
+static int mvneta_fixed_link_update(struct mvneta_port *pp,
+ struct phy_device *phy)
+{
+ struct fixed_phy_status status;
+ struct fixed_phy_status changed = {};
+ u32 gmac_stat = mvreg_read(pp, MVNETA_GMAC_STATUS);
+
+ status.link = !!(gmac_stat & MVNETA_GMAC_LINK_UP);
+ if (gmac_stat & MVNETA_GMAC_SPEED_1000)
+ status.speed = SPEED_1000;
+ else if (gmac_stat & MVNETA_GMAC_SPEED_100)
+ status.speed = SPEED_100;
+ else
+ status.speed = SPEED_10;
+ status.duplex = !!(gmac_stat & MVNETA_GMAC_FULL_DUPLEX);
+ changed.link = 1;
+ changed.speed = 1;
+ changed.duplex = 1;
+ fixed_phy_update_state(phy, &status, &changed);
+ return 0;
+}
+
+/* NAPI handler
+ * Bits 0 - 7 of the causeRxTx register indicate that are transmitted
+ * packets on the corresponding TXQ (Bit 0 is for TX queue 1).
+ * Bits 8 -15 of the cause Rx Tx register indicate that are received
+ * packets on the corresponding RXQ (Bit 8 is for RX queue 0).
+ * Each CPU has its own causeRxTx register
+ */
+static int mvneta_poll(struct napi_struct *napi, int budget)
+{
+ int rx_done = 0;
+ u32 cause_rx_tx;
+ unsigned long flags;
+ struct mvneta_port *pp = netdev_priv(napi->dev);
+
+ if (!netif_running(pp->dev)) {
+ napi_complete(napi);
+ return rx_done;
+ }
+
+ /* Read cause register */
+ cause_rx_tx = mvreg_read(pp, MVNETA_INTR_NEW_CAUSE);
+ if (cause_rx_tx & MVNETA_MISCINTR_INTR_MASK) {
+ u32 cause_misc = mvreg_read(pp, MVNETA_INTR_MISC_CAUSE);
+
+ mvreg_write(pp, MVNETA_INTR_MISC_CAUSE, 0);
+ if (pp->use_inband_status && (cause_misc &
+ (MVNETA_CAUSE_PHY_STATUS_CHANGE |
+ MVNETA_CAUSE_LINK_CHANGE |
+ MVNETA_CAUSE_PSC_SYNC_CHANGE))) {
+ mvneta_fixed_link_update(pp, pp->phy_dev);
+ }
+ }
+
+ /* Release Tx descriptors */
+ if (cause_rx_tx & MVNETA_TX_INTR_MASK_ALL) {
+ mvneta_tx_done_gbe(pp, (cause_rx_tx & MVNETA_TX_INTR_MASK_ALL));
+ cause_rx_tx &= ~MVNETA_TX_INTR_MASK_ALL;
+ }
+
+ /* For the case where the last mvneta_poll did not process all
+ * RX packets
+ */
+ cause_rx_tx |= pp->cause_rx_tx;
+ if (rxq_number > 1) {
+ while ((cause_rx_tx & MVNETA_RX_INTR_MASK_ALL) && (budget > 0)) {
+ int count;
+ struct mvneta_rx_queue *rxq;
+ /* get rx queue number from cause_rx_tx */
+ rxq = mvneta_rx_policy(pp, cause_rx_tx);
+ if (!rxq)
+ break;
+
+ /* process the packet in that rx queue */
+ count = mvneta_rx(pp, budget, rxq);
+ rx_done += count;
+ budget -= count;
+ if (budget > 0) {
+ /* set off the rx bit of the
+ * corresponding bit in the cause rx
+ * tx register, so that next iteration
+ * will find the next rx queue where
+ * packets are received on
+ */
+ cause_rx_tx &= ~((1 << rxq->id) << 8);
+ }
+ }
+ } else {
+ rx_done = mvneta_rx(pp, budget, &pp->rxqs[rxq_def]);
+ budget -= rx_done;
+ }
+
+ if (budget > 0) {
+ cause_rx_tx = 0;
+ napi_complete(napi);
+ local_irq_save(flags);
+ mvreg_write(pp, MVNETA_INTR_NEW_MASK,
+ MVNETA_RX_INTR_MASK(rxq_number) |
+ MVNETA_TX_INTR_MASK(txq_number) |
+ MVNETA_MISCINTR_INTR_MASK);
+ local_irq_restore(flags);
+ }
+
+ pp->cause_rx_tx = cause_rx_tx;
+ return rx_done;
+}
+
+/* Handle rxq fill: allocates rxq skbs; called when initializing a port */
+static int mvneta_rxq_fill(struct mvneta_port *pp, struct mvneta_rx_queue *rxq,
+ int num)
+{
+ int i;
+
+ for (i = 0; i < num; i++) {
+ memset(rxq->descs + i, 0, sizeof(struct mvneta_rx_desc));
+ if (mvneta_rx_refill(pp, rxq->descs + i) != 0) {
+ netdev_err(pp->dev, "%s:rxq %d, %d of %d buffs filled\n",
+ __func__, rxq->id, i, num);
+ break;
+ }
+ }
+
+ /* Add this number of RX descriptors as non occupied (ready to
+ * get packets)
+ */
+ mvneta_rxq_non_occup_desc_add(pp, rxq, i);
+
+ return i;
+}
+
+/* Free all packets pending transmit from all TXQs and reset TX port */
+static void mvneta_tx_reset(struct mvneta_port *pp)
+{
+ int queue;
+
+ /* free the skb's in the tx ring */
+ for (queue = 0; queue < txq_number; queue++)
+ mvneta_txq_done_force(pp, &pp->txqs[queue]);
+
+ mvreg_write(pp, MVNETA_PORT_TX_RESET, MVNETA_PORT_TX_DMA_RESET);
+ mvreg_write(pp, MVNETA_PORT_TX_RESET, 0);
+}
+
+static void mvneta_rx_reset(struct mvneta_port *pp)
+{
+ mvreg_write(pp, MVNETA_PORT_RX_RESET, MVNETA_PORT_RX_DMA_RESET);
+ mvreg_write(pp, MVNETA_PORT_RX_RESET, 0);
+}
+
+/* Rx/Tx queue initialization/cleanup methods */
+
+/* Create a specified RX queue */
+static int mvneta_rxq_init(struct mvneta_port *pp,
+ struct mvneta_rx_queue *rxq)
+
+{
+ rxq->size = pp->rx_ring_size;
+
+ /* Allocate memory for RX descriptors */
+ rxq->descs = dma_alloc_coherent(pp->dev->dev.parent,
+ rxq->size * MVNETA_DESC_ALIGNED_SIZE,
+ &rxq->descs_phys, GFP_KERNEL);
+ if (rxq->descs == NULL)
+ return -ENOMEM;
+
+ BUG_ON(rxq->descs !=
+ PTR_ALIGN(rxq->descs, MVNETA_CPU_D_CACHE_LINE_SIZE));
+
+ rxq->last_desc = rxq->size - 1;
+
+ /* Set Rx descriptors queue starting address */
+ mvreg_write(pp, MVNETA_RXQ_BASE_ADDR_REG(rxq->id), rxq->descs_phys);
+ mvreg_write(pp, MVNETA_RXQ_SIZE_REG(rxq->id), rxq->size);
+
+ /* Set Offset */
+ mvneta_rxq_offset_set(pp, rxq, NET_SKB_PAD);
+
+ /* Set coalescing pkts and time */
+ mvneta_rx_pkts_coal_set(pp, rxq, rxq->pkts_coal);
+ mvneta_rx_time_coal_set(pp, rxq, rxq->time_coal);
+
+ /* Fill RXQ with buffers from RX pool */
+ mvneta_rxq_buf_size_set(pp, rxq, MVNETA_RX_BUF_SIZE(pp->pkt_size));
+ mvneta_rxq_bm_disable(pp, rxq);
+ mvneta_rxq_fill(pp, rxq, rxq->size);
+
+ return 0;
+}
+
+/* Cleanup Rx queue */
+static void mvneta_rxq_deinit(struct mvneta_port *pp,
+ struct mvneta_rx_queue *rxq)
+{
+ mvneta_rxq_drop_pkts(pp, rxq);
+
+ if (rxq->descs)
+ dma_free_coherent(pp->dev->dev.parent,
+ rxq->size * MVNETA_DESC_ALIGNED_SIZE,
+ rxq->descs,
+ rxq->descs_phys);
+
+ rxq->descs = NULL;
+ rxq->last_desc = 0;
+ rxq->next_desc_to_proc = 0;
+ rxq->descs_phys = 0;
+}
+
+/* Create and initialize a tx queue */
+static int mvneta_txq_init(struct mvneta_port *pp,
+ struct mvneta_tx_queue *txq)
+{
+ txq->size = pp->tx_ring_size;
+
+ /* A queue must always have room for at least one skb.
+ * Therefore, stop the queue when the free entries reaches
+ * the maximum number of descriptors per skb.
+ */
+ txq->tx_stop_threshold = txq->size - MVNETA_MAX_SKB_DESCS;
+ txq->tx_wake_threshold = txq->tx_stop_threshold / 2;
+
+
+ /* Allocate memory for TX descriptors */
+ txq->descs = dma_alloc_coherent(pp->dev->dev.parent,
+ txq->size * MVNETA_DESC_ALIGNED_SIZE,
+ &txq->descs_phys, GFP_KERNEL);
+ if (txq->descs == NULL)
+ return -ENOMEM;
+
+ /* Make sure descriptor address is cache line size aligned */
+ BUG_ON(txq->descs !=
+ PTR_ALIGN(txq->descs, MVNETA_CPU_D_CACHE_LINE_SIZE));
+
+ txq->last_desc = txq->size - 1;
+
+ /* Set maximum bandwidth for enabled TXQs */
+ mvreg_write(pp, MVETH_TXQ_TOKEN_CFG_REG(txq->id), 0x03ffffff);
+ mvreg_write(pp, MVETH_TXQ_TOKEN_COUNT_REG(txq->id), 0x3fffffff);
+
+ /* Set Tx descriptors queue starting address */
+ mvreg_write(pp, MVNETA_TXQ_BASE_ADDR_REG(txq->id), txq->descs_phys);
+ mvreg_write(pp, MVNETA_TXQ_SIZE_REG(txq->id), txq->size);
+
+ txq->tx_skb = kmalloc(txq->size * sizeof(*txq->tx_skb), GFP_KERNEL);
+ if (txq->tx_skb == NULL) {
+ dma_free_coherent(pp->dev->dev.parent,
+ txq->size * MVNETA_DESC_ALIGNED_SIZE,
+ txq->descs, txq->descs_phys);
+ return -ENOMEM;
+ }
+
+ /* Allocate DMA buffers for TSO MAC/IP/TCP headers */
+ txq->tso_hdrs = dma_alloc_coherent(pp->dev->dev.parent,
+ txq->size * TSO_HEADER_SIZE,
+ &txq->tso_hdrs_phys, GFP_KERNEL);
+ if (txq->tso_hdrs == NULL) {
+ kfree(txq->tx_skb);
+ dma_free_coherent(pp->dev->dev.parent,
+ txq->size * MVNETA_DESC_ALIGNED_SIZE,
+ txq->descs, txq->descs_phys);
+ return -ENOMEM;
+ }
+ mvneta_tx_done_pkts_coal_set(pp, txq, txq->done_pkts_coal);
+
+ return 0;
+}
+
+/* Free allocated resources when mvneta_txq_init() fails to allocate memory*/
+static void mvneta_txq_deinit(struct mvneta_port *pp,
+ struct mvneta_tx_queue *txq)
+{
+ kfree(txq->tx_skb);
+
+ if (txq->tso_hdrs)
+ dma_free_coherent(pp->dev->dev.parent,
+ txq->size * TSO_HEADER_SIZE,
+ txq->tso_hdrs, txq->tso_hdrs_phys);
+ if (txq->descs)
+ dma_free_coherent(pp->dev->dev.parent,
+ txq->size * MVNETA_DESC_ALIGNED_SIZE,
+ txq->descs, txq->descs_phys);
+
+ txq->descs = NULL;
+ txq->last_desc = 0;
+ txq->next_desc_to_proc = 0;
+ txq->descs_phys = 0;
+
+ /* Set minimum bandwidth for disabled TXQs */
+ mvreg_write(pp, MVETH_TXQ_TOKEN_CFG_REG(txq->id), 0);
+ mvreg_write(pp, MVETH_TXQ_TOKEN_COUNT_REG(txq->id), 0);
+
+ /* Set Tx descriptors queue starting address and size */
+ mvreg_write(pp, MVNETA_TXQ_BASE_ADDR_REG(txq->id), 0);
+ mvreg_write(pp, MVNETA_TXQ_SIZE_REG(txq->id), 0);
+}
+
+/* Cleanup all Tx queues */
+static void mvneta_cleanup_txqs(struct mvneta_port *pp)
+{
+ int queue;
+
+ for (queue = 0; queue < txq_number; queue++)
+ mvneta_txq_deinit(pp, &pp->txqs[queue]);
+}
+
+/* Cleanup all Rx queues */
+static void mvneta_cleanup_rxqs(struct mvneta_port *pp)
+{
+ int queue;
+
+ for (queue = 0; queue < rxq_number; queue++)
+ mvneta_rxq_deinit(pp, &pp->rxqs[queue]);
+}
+
+
+/* Init all Rx queues */
+static int mvneta_setup_rxqs(struct mvneta_port *pp)
+{
+ int queue;
+
+ for (queue = 0; queue < rxq_number; queue++) {
+ int err = mvneta_rxq_init(pp, &pp->rxqs[queue]);
+ if (err) {
+ netdev_err(pp->dev, "%s: can't create rxq=%d\n",
+ __func__, queue);
+ mvneta_cleanup_rxqs(pp);
+ return err;
+ }
+ }
+
+ return 0;
+}
+
+/* Init all tx queues */
+static int mvneta_setup_txqs(struct mvneta_port *pp)
+{
+ int queue;
+
+ for (queue = 0; queue < txq_number; queue++) {
+ int err = mvneta_txq_init(pp, &pp->txqs[queue]);
+ if (err) {
+ netdev_err(pp->dev, "%s: can't create txq=%d\n",
+ __func__, queue);
+ mvneta_cleanup_txqs(pp);
+ return err;
+ }
+ }
+
+ return 0;
+}
+
+static void mvneta_start_dev(struct mvneta_port *pp)
+{
+ mvneta_max_rx_size_set(pp, pp->pkt_size);
+ mvneta_txq_max_tx_size_set(pp, pp->pkt_size);
+
+ /* start the Rx/Tx activity */
+ mvneta_port_enable(pp);
+
+ /* Enable polling on the port */
+ napi_enable(&pp->napi);
+
+ /* Unmask interrupts */
+ mvreg_write(pp, MVNETA_INTR_NEW_MASK,
+ MVNETA_RX_INTR_MASK(rxq_number) |
+ MVNETA_TX_INTR_MASK(txq_number) |
+ MVNETA_MISCINTR_INTR_MASK);
+ mvreg_write(pp, MVNETA_INTR_MISC_MASK,
+ MVNETA_CAUSE_PHY_STATUS_CHANGE |
+ MVNETA_CAUSE_LINK_CHANGE |
+ MVNETA_CAUSE_PSC_SYNC_CHANGE);
+
+ phy_start(pp->phy_dev);
+ netif_tx_start_all_queues(pp->dev);
+}
+
+static void mvneta_stop_dev(struct mvneta_port *pp)
+{
+ phy_stop(pp->phy_dev);
+
+ napi_disable(&pp->napi);
+
+ netif_carrier_off(pp->dev);
+
+ mvneta_port_down(pp);
+ netif_tx_stop_all_queues(pp->dev);
+
+ /* Stop the port activity */
+ mvneta_port_disable(pp);
+
+ /* Clear all ethernet port interrupts */
+ mvreg_write(pp, MVNETA_INTR_MISC_CAUSE, 0);
+ mvreg_write(pp, MVNETA_INTR_OLD_CAUSE, 0);
+
+ /* Mask all ethernet port interrupts */
+ mvreg_write(pp, MVNETA_INTR_NEW_MASK, 0);
+ mvreg_write(pp, MVNETA_INTR_OLD_MASK, 0);
+ mvreg_write(pp, MVNETA_INTR_MISC_MASK, 0);
+
+ mvneta_tx_reset(pp);
+ mvneta_rx_reset(pp);
+}
+
+/* Return positive if MTU is valid */
+static int mvneta_check_mtu_valid(struct net_device *dev, int mtu)
+{
+ if (mtu < 68) {
+ netdev_err(dev, "cannot change mtu to less than 68\n");
+ return -EINVAL;
+ }
+
+ /* 9676 == 9700 - 20 and rounding to 8 */
+ if (mtu > 9676) {
+ netdev_info(dev, "Illegal MTU value %d, round to 9676\n", mtu);
+ mtu = 9676;
+ }
+
+ if (!IS_ALIGNED(MVNETA_RX_PKT_SIZE(mtu), 8)) {
+ netdev_info(dev, "Illegal MTU value %d, rounding to %d\n",
+ mtu, ALIGN(MVNETA_RX_PKT_SIZE(mtu), 8));
+ mtu = ALIGN(MVNETA_RX_PKT_SIZE(mtu), 8);
+ }
+
+ return mtu;
+}
+
+/* Change the device mtu */
+static int mvneta_change_mtu(struct net_device *dev, int mtu)
+{
+ struct mvneta_port *pp = netdev_priv(dev);
+ int ret;
+
+ mtu = mvneta_check_mtu_valid(dev, mtu);
+ if (mtu < 0)
+ return -EINVAL;
+
+ dev->mtu = mtu;
+
+ if (!netif_running(dev)) {
+ netdev_update_features(dev);
+ return 0;
+ }
+
+ /* The interface is running, so we have to force a
+ * reallocation of the queues
+ */
+ mvneta_stop_dev(pp);
+
+ mvneta_cleanup_txqs(pp);
+ mvneta_cleanup_rxqs(pp);
+
+ pp->pkt_size = MVNETA_RX_PKT_SIZE(dev->mtu);
+ pp->frag_size = SKB_DATA_ALIGN(MVNETA_RX_BUF_SIZE(pp->pkt_size)) +
+ SKB_DATA_ALIGN(sizeof(struct skb_shared_info));
+
+ ret = mvneta_setup_rxqs(pp);
+ if (ret) {
+ netdev_err(dev, "unable to setup rxqs after MTU change\n");
+ return ret;
+ }
+
+ ret = mvneta_setup_txqs(pp);
+ if (ret) {
+ netdev_err(dev, "unable to setup txqs after MTU change\n");
+ return ret;
+ }
+
+ mvneta_start_dev(pp);
+ mvneta_port_up(pp);
+
+ netdev_update_features(dev);
+
+ return 0;
+}
+
+static netdev_features_t mvneta_fix_features(struct net_device *dev,
+ netdev_features_t features)
+{
+ struct mvneta_port *pp = netdev_priv(dev);
+
+ if (pp->tx_csum_limit && dev->mtu > pp->tx_csum_limit) {
+ features &= ~(NETIF_F_IP_CSUM | NETIF_F_TSO);
+ netdev_info(dev,
+ "Disable IP checksum for MTU greater than %dB\n",
+ pp->tx_csum_limit);
+ }
+
+ return features;
+}
+
+/* Get mac address */
+static void mvneta_get_mac_addr(struct mvneta_port *pp, unsigned char *addr)
+{
+ u32 mac_addr_l, mac_addr_h;
+
+ mac_addr_l = mvreg_read(pp, MVNETA_MAC_ADDR_LOW);
+ mac_addr_h = mvreg_read(pp, MVNETA_MAC_ADDR_HIGH);
+ addr[0] = (mac_addr_h >> 24) & 0xFF;
+ addr[1] = (mac_addr_h >> 16) & 0xFF;
+ addr[2] = (mac_addr_h >> 8) & 0xFF;
+ addr[3] = mac_addr_h & 0xFF;
+ addr[4] = (mac_addr_l >> 8) & 0xFF;
+ addr[5] = mac_addr_l & 0xFF;
+}
+
+/* Handle setting mac address */
+static int mvneta_set_mac_addr(struct net_device *dev, void *addr)
+{
+ struct mvneta_port *pp = netdev_priv(dev);
+ struct sockaddr *sockaddr = addr;
+ int ret;
+
+ ret = eth_prepare_mac_addr_change(dev, addr);
+ if (ret < 0)
+ return ret;
+ /* Remove previous address table entry */
+ mvneta_mac_addr_set(pp, dev->dev_addr, -1);
+
+ /* Set new addr in hw */
+ mvneta_mac_addr_set(pp, sockaddr->sa_data, rxq_def);
+
+ eth_commit_mac_addr_change(dev, addr);
+ return 0;
+}
+
+static void mvneta_adjust_link(struct net_device *ndev)
+{
+ struct mvneta_port *pp = netdev_priv(ndev);
+ struct phy_device *phydev = pp->phy_dev;
+ int status_change = 0;
+
+ if (phydev->link) {
+ if ((pp->speed != phydev->speed) ||
+ (pp->duplex != phydev->duplex)) {
+ u32 val;
+
+ val = mvreg_read(pp, MVNETA_GMAC_AUTONEG_CONFIG);
+ val &= ~(MVNETA_GMAC_CONFIG_MII_SPEED |
+ MVNETA_GMAC_CONFIG_GMII_SPEED |
+ MVNETA_GMAC_CONFIG_FULL_DUPLEX);
+
+ if (phydev->duplex)
+ val |= MVNETA_GMAC_CONFIG_FULL_DUPLEX;
+
+ if (phydev->speed == SPEED_1000)
+ val |= MVNETA_GMAC_CONFIG_GMII_SPEED;
+ else if (phydev->speed == SPEED_100)
+ val |= MVNETA_GMAC_CONFIG_MII_SPEED;
+
+ mvreg_write(pp, MVNETA_GMAC_AUTONEG_CONFIG, val);
+
+ pp->duplex = phydev->duplex;
+ pp->speed = phydev->speed;
+ }
+ }
+
+ if (phydev->link != pp->link) {
+ if (!phydev->link) {
+ pp->duplex = -1;
+ pp->speed = 0;
+ }
+
+ pp->link = phydev->link;
+ status_change = 1;
+ }
+
+ if (status_change) {
+ if (phydev->link) {
+ if (!pp->use_inband_status) {
+ u32 val = mvreg_read(pp,
+ MVNETA_GMAC_AUTONEG_CONFIG);
+ val &= ~MVNETA_GMAC_FORCE_LINK_DOWN;
+ val |= MVNETA_GMAC_FORCE_LINK_PASS;
+ mvreg_write(pp, MVNETA_GMAC_AUTONEG_CONFIG,
+ val);
+ }
+ mvneta_port_up(pp);
+ } else {
+ if (!pp->use_inband_status) {
+ u32 val = mvreg_read(pp,
+ MVNETA_GMAC_AUTONEG_CONFIG);
+ val &= ~MVNETA_GMAC_FORCE_LINK_PASS;
+ val |= MVNETA_GMAC_FORCE_LINK_DOWN;
+ mvreg_write(pp, MVNETA_GMAC_AUTONEG_CONFIG,
+ val);
+ }
+ mvneta_port_down(pp);
+ }
+ phy_print_status(phydev);
+ }
+}
+
+static int mvneta_mdio_probe(struct mvneta_port *pp)
+{
+ struct phy_device *phy_dev;
+
+ phy_dev = of_phy_connect(pp->dev, pp->phy_node, mvneta_adjust_link, 0,
+ pp->phy_interface);
+ if (!phy_dev) {
+ netdev_err(pp->dev, "could not find the PHY\n");
+ return -ENODEV;
+ }
+
+ phy_dev->supported &= PHY_GBIT_FEATURES;
+ phy_dev->advertising = phy_dev->supported;
+
+ pp->phy_dev = phy_dev;
+ pp->link = 0;
+ pp->duplex = 0;
+ pp->speed = 0;
+
+ return 0;
+}
+
+static void mvneta_mdio_remove(struct mvneta_port *pp)
+{
+ phy_disconnect(pp->phy_dev);
+ pp->phy_dev = NULL;
+}
+
+static int mvneta_open(struct net_device *dev)
+{
+ struct mvneta_port *pp = netdev_priv(dev);
+ int ret;
+
+ pp->pkt_size = MVNETA_RX_PKT_SIZE(pp->dev->mtu);
+ pp->frag_size = SKB_DATA_ALIGN(MVNETA_RX_BUF_SIZE(pp->pkt_size)) +
+ SKB_DATA_ALIGN(sizeof(struct skb_shared_info));
+
+ ret = mvneta_setup_rxqs(pp);
+ if (ret)
+ return ret;
+
+ ret = mvneta_setup_txqs(pp);
+ if (ret)
+ goto err_cleanup_rxqs;
+
+ /* Connect to port interrupt line */
+ ret = request_irq(pp->dev->irq, mvneta_isr, 0,
+ MVNETA_DRIVER_NAME, pp);
+ if (ret) {
+ netdev_err(pp->dev, "cannot request irq %d\n", pp->dev->irq);
+ goto err_cleanup_txqs;
+ }
+
+ /* In default link is down */
+ netif_carrier_off(pp->dev);
+
+ ret = mvneta_mdio_probe(pp);
+ if (ret < 0) {
+ netdev_err(dev, "cannot probe MDIO bus\n");
+ goto err_free_irq;
+ }
+
+ mvneta_start_dev(pp);
+
+ return 0;
+
+err_free_irq:
+ free_irq(pp->dev->irq, pp);
+err_cleanup_txqs:
+ mvneta_cleanup_txqs(pp);
+err_cleanup_rxqs:
+ mvneta_cleanup_rxqs(pp);
+ return ret;
+}
+
+/* Stop the port, free port interrupt line */
+static int mvneta_stop(struct net_device *dev)
+{
+ struct mvneta_port *pp = netdev_priv(dev);
+
+ mvneta_stop_dev(pp);
+ mvneta_mdio_remove(pp);
+ free_irq(dev->irq, pp);
+ mvneta_cleanup_rxqs(pp);
+ mvneta_cleanup_txqs(pp);
+
+ return 0;
+}
+
+static int mvneta_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
+{
+ struct mvneta_port *pp = netdev_priv(dev);
+
+ if (!pp->phy_dev)
+ return -ENOTSUPP;
+
+ return phy_mii_ioctl(pp->phy_dev, ifr, cmd);
+}
+
+/* Ethtool methods */
+
+/* Get settings (phy address, speed) for ethtools */
+int mvneta_ethtool_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
+{
+ struct mvneta_port *pp = netdev_priv(dev);
+
+ if (!pp->phy_dev)
+ return -ENODEV;
+
+ return phy_ethtool_gset(pp->phy_dev, cmd);
+}
+
+/* Set settings (phy address, speed) for ethtools */
+int mvneta_ethtool_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
+{
+ struct mvneta_port *pp = netdev_priv(dev);
+
+ if (!pp->phy_dev)
+ return -ENODEV;
+
+ return phy_ethtool_sset(pp->phy_dev, cmd);
+}
+
+/* Set interrupt coalescing for ethtools */
+static int mvneta_ethtool_set_coalesce(struct net_device *dev,
+ struct ethtool_coalesce *c)
+{
+ struct mvneta_port *pp = netdev_priv(dev);
+ int queue;
+
+ for (queue = 0; queue < rxq_number; queue++) {
+ struct mvneta_rx_queue *rxq = &pp->rxqs[queue];
+ rxq->time_coal = c->rx_coalesce_usecs;
+ rxq->pkts_coal = c->rx_max_coalesced_frames;
+ mvneta_rx_pkts_coal_set(pp, rxq, rxq->pkts_coal);
+ mvneta_rx_time_coal_set(pp, rxq, rxq->time_coal);
+ }
+
+ for (queue = 0; queue < txq_number; queue++) {
+ struct mvneta_tx_queue *txq = &pp->txqs[queue];
+ txq->done_pkts_coal = c->tx_max_coalesced_frames;
+ mvneta_tx_done_pkts_coal_set(pp, txq, txq->done_pkts_coal);
+ }
+
+ return 0;
+}
+
+/* get coalescing for ethtools */
+static int mvneta_ethtool_get_coalesce(struct net_device *dev,
+ struct ethtool_coalesce *c)
+{
+ struct mvneta_port *pp = netdev_priv(dev);
+
+ c->rx_coalesce_usecs = pp->rxqs[0].time_coal;
+ c->rx_max_coalesced_frames = pp->rxqs[0].pkts_coal;
+
+ c->tx_max_coalesced_frames = pp->txqs[0].done_pkts_coal;
+ return 0;
+}
+
+
+static void mvneta_ethtool_get_drvinfo(struct net_device *dev,
+ struct ethtool_drvinfo *drvinfo)
+{
+ strlcpy(drvinfo->driver, MVNETA_DRIVER_NAME,
+ sizeof(drvinfo->driver));
+ strlcpy(drvinfo->version, MVNETA_DRIVER_VERSION,
+ sizeof(drvinfo->version));
+ strlcpy(drvinfo->bus_info, dev_name(&dev->dev),
+ sizeof(drvinfo->bus_info));
+}
+
+
+static void mvneta_ethtool_get_ringparam(struct net_device *netdev,
+ struct ethtool_ringparam *ring)
+{
+ struct mvneta_port *pp = netdev_priv(netdev);
+
+ ring->rx_max_pending = MVNETA_MAX_RXD;
+ ring->tx_max_pending = MVNETA_MAX_TXD;
+ ring->rx_pending = pp->rx_ring_size;
+ ring->tx_pending = pp->tx_ring_size;
+}
+
+static int mvneta_ethtool_set_ringparam(struct net_device *dev,
+ struct ethtool_ringparam *ring)
+{
+ struct mvneta_port *pp = netdev_priv(dev);
+
+ if ((ring->rx_pending == 0) || (ring->tx_pending == 0))
+ return -EINVAL;
+ pp->rx_ring_size = ring->rx_pending < MVNETA_MAX_RXD ?
+ ring->rx_pending : MVNETA_MAX_RXD;
+
+ pp->tx_ring_size = clamp_t(u16, ring->tx_pending,
+ MVNETA_MAX_SKB_DESCS * 2, MVNETA_MAX_TXD);
+ if (pp->tx_ring_size != ring->tx_pending)
+ netdev_warn(dev, "TX queue size set to %u (requested %u)\n",
+ pp->tx_ring_size, ring->tx_pending);
+
+ if (netif_running(dev)) {
+ mvneta_stop(dev);
+ if (mvneta_open(dev)) {
+ netdev_err(dev,
+ "error on opening device after ring param change\n");
+ return -ENOMEM;
+ }
+ }
+
+ return 0;
+}
+
+static const struct net_device_ops mvneta_netdev_ops = {
+ .ndo_open = mvneta_open,
+ .ndo_stop = mvneta_stop,
+ .ndo_start_xmit = mvneta_tx,
+ .ndo_set_rx_mode = mvneta_set_rx_mode,
+ .ndo_set_mac_address = mvneta_set_mac_addr,
+ .ndo_change_mtu = mvneta_change_mtu,
+ .ndo_fix_features = mvneta_fix_features,
+ .ndo_get_stats64 = mvneta_get_stats64,
+ .ndo_do_ioctl = mvneta_ioctl,
+};
+
+const struct ethtool_ops mvneta_eth_tool_ops = {
+ .get_link = ethtool_op_get_link,
+ .get_settings = mvneta_ethtool_get_settings,
+ .set_settings = mvneta_ethtool_set_settings,
+ .set_coalesce = mvneta_ethtool_set_coalesce,
+ .get_coalesce = mvneta_ethtool_get_coalesce,
+ .get_drvinfo = mvneta_ethtool_get_drvinfo,
+ .get_ringparam = mvneta_ethtool_get_ringparam,
+ .set_ringparam = mvneta_ethtool_set_ringparam,
+};
+
+/* Initialize hw */
+static int mvneta_init(struct device *dev, struct mvneta_port *pp)
+{
+ int queue;
+
+ /* Disable port */
+ mvneta_port_disable(pp);
+
+ /* Set port default values */
+ mvneta_defaults_set(pp);
+
+ pp->txqs = devm_kcalloc(dev, txq_number, sizeof(struct mvneta_tx_queue),
+ GFP_KERNEL);
+ if (!pp->txqs)
+ return -ENOMEM;
+
+ /* Initialize TX descriptor rings */
+ for (queue = 0; queue < txq_number; queue++) {
+ struct mvneta_tx_queue *txq = &pp->txqs[queue];
+ txq->id = queue;
+ txq->size = pp->tx_ring_size;
+ txq->done_pkts_coal = MVNETA_TXDONE_COAL_PKTS;
+ }
+
+ pp->rxqs = devm_kcalloc(dev, rxq_number, sizeof(struct mvneta_rx_queue),
+ GFP_KERNEL);
+ if (!pp->rxqs)
+ return -ENOMEM;
+
+ /* Create Rx descriptor rings */
+ for (queue = 0; queue < rxq_number; queue++) {
+ struct mvneta_rx_queue *rxq = &pp->rxqs[queue];
+ rxq->id = queue;
+ rxq->size = pp->rx_ring_size;
+ rxq->pkts_coal = MVNETA_RX_COAL_PKTS;
+ rxq->time_coal = MVNETA_RX_COAL_USEC;
+ }
+
+ return 0;
+}
+
+/* platform glue : initialize decoding windows */
+static void mvneta_conf_mbus_windows(struct mvneta_port *pp,
+ const struct mbus_dram_target_info *dram)
+{
+ u32 win_enable;
+ u32 win_protect;
+ int i;
+
+ for (i = 0; i < 6; i++) {
+ mvreg_write(pp, MVNETA_WIN_BASE(i), 0);
+ mvreg_write(pp, MVNETA_WIN_SIZE(i), 0);
+
+ if (i < 4)
+ mvreg_write(pp, MVNETA_WIN_REMAP(i), 0);
+ }
+
+ win_enable = 0x3f;
+ win_protect = 0;
+
+ for (i = 0; i < dram->num_cs; i++) {
+ const struct mbus_dram_window *cs = dram->cs + i;
+ mvreg_write(pp, MVNETA_WIN_BASE(i), (cs->base & 0xffff0000) |
+ (cs->mbus_attr << 8) | dram->mbus_dram_target_id);
+
+ mvreg_write(pp, MVNETA_WIN_SIZE(i),
+ (cs->size - 1) & 0xffff0000);
+
+ win_enable &= ~(1 << i);
+ win_protect |= 3 << (2 * i);
+ }
+
+ mvreg_write(pp, MVNETA_BASE_ADDR_ENABLE, win_enable);
+}
+
+/* Power up the port */
+static int mvneta_port_power_up(struct mvneta_port *pp, int phy_mode)
+{
+ u32 ctrl;
+
+ /* MAC Cause register should be cleared */
+ mvreg_write(pp, MVNETA_UNIT_INTR_CAUSE, 0);
+
+ ctrl = mvreg_read(pp, MVNETA_GMAC_CTRL_2);
+
+ /* Even though it might look weird, when we're configured in
+ * SGMII or QSGMII mode, the RGMII bit needs to be set.
+ */
+ switch(phy_mode) {
+ case PHY_INTERFACE_MODE_QSGMII:
+ mvreg_write(pp, MVNETA_SERDES_CFG, MVNETA_QSGMII_SERDES_PROTO);
+ ctrl |= MVNETA_GMAC2_PCS_ENABLE | MVNETA_GMAC2_PORT_RGMII;
+ break;
+ case PHY_INTERFACE_MODE_SGMII:
+ mvreg_write(pp, MVNETA_SERDES_CFG, MVNETA_SGMII_SERDES_PROTO);
+ ctrl |= MVNETA_GMAC2_PCS_ENABLE | MVNETA_GMAC2_PORT_RGMII;
+ break;
+ case PHY_INTERFACE_MODE_RGMII:
+ case PHY_INTERFACE_MODE_RGMII_ID:
+ ctrl |= MVNETA_GMAC2_PORT_RGMII;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ if (pp->use_inband_status)
+ ctrl |= MVNETA_GMAC2_INBAND_AN_ENABLE;
+
+ /* Cancel Port Reset */
+ ctrl &= ~MVNETA_GMAC2_PORT_RESET;
+ mvreg_write(pp, MVNETA_GMAC_CTRL_2, ctrl);
+
+ while ((mvreg_read(pp, MVNETA_GMAC_CTRL_2) &
+ MVNETA_GMAC2_PORT_RESET) != 0)
+ continue;
+
+ return 0;
+}
+
+/* Device initialization routine */
+static int mvneta_probe(struct platform_device *pdev)
+{
+ const struct mbus_dram_target_info *dram_target_info;
+ struct resource *res;
+ struct device_node *dn = pdev->dev.of_node;
+ struct device_node *phy_node;
+ struct mvneta_port *pp;
+ struct net_device *dev;
+ const char *dt_mac_addr;
+ char hw_mac_addr[ETH_ALEN];
+ const char *mac_from;
+ int phy_mode;
+ int fixed_phy = 0;
+ int err;
+
+ /* Our multiqueue support is not complete, so for now, only
+ * allow the usage of the first RX queue
+ */
+ if (rxq_def != 0) {
+ dev_err(&pdev->dev, "Invalid rxq_def argument: %d\n", rxq_def);
+ return -EINVAL;
+ }
+
+ dev = alloc_etherdev_mqs(sizeof(struct mvneta_port), txq_number, rxq_number);
+ if (!dev)
+ return -ENOMEM;
+
+ dev->irq = irq_of_parse_and_map(dn, 0);
+ if (dev->irq == 0) {
+ err = -EINVAL;
+ goto err_free_netdev;
+ }
+
+ phy_node = of_parse_phandle(dn, "phy", 0);
+ if (!phy_node) {
+ if (!of_phy_is_fixed_link(dn)) {
+ dev_err(&pdev->dev, "no PHY specified\n");
+ err = -ENODEV;
+ goto err_free_irq;
+ }
+
+ err = of_phy_register_fixed_link(dn);
+ if (err < 0) {
+ dev_err(&pdev->dev, "cannot register fixed PHY\n");
+ goto err_free_irq;
+ }
+ fixed_phy = 1;
+
+ /* In the case of a fixed PHY, the DT node associated
+ * to the PHY is the Ethernet MAC DT node.
+ */
+ phy_node = of_node_get(dn);
+ }
+
+ phy_mode = of_get_phy_mode(dn);
+ if (phy_mode < 0) {
+ dev_err(&pdev->dev, "incorrect phy-mode\n");
+ err = -EINVAL;
+ goto err_put_phy_node;
+ }
+
+ dev->tx_queue_len = MVNETA_MAX_TXD;
+ dev->watchdog_timeo = 5 * HZ;
+ dev->netdev_ops = &mvneta_netdev_ops;
+
+ dev->ethtool_ops = &mvneta_eth_tool_ops;
+
+ pp = netdev_priv(dev);
+ pp->phy_node = phy_node;
+ pp->phy_interface = phy_mode;
+ pp->use_inband_status = (phy_mode == PHY_INTERFACE_MODE_SGMII) &&
+ fixed_phy;
+
+ pp->clk = devm_clk_get(&pdev->dev, NULL);
+ if (IS_ERR(pp->clk)) {
+ err = PTR_ERR(pp->clk);
+ goto err_put_phy_node;
+ }
+
+ clk_prepare_enable(pp->clk);
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ pp->base = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(pp->base)) {
+ err = PTR_ERR(pp->base);
+ goto err_clk;
+ }
+
+ /* Alloc per-cpu stats */
+ pp->stats = netdev_alloc_pcpu_stats(struct mvneta_pcpu_stats);
+ if (!pp->stats) {
+ err = -ENOMEM;
+ goto err_clk;
+ }
+
+ dt_mac_addr = of_get_mac_address(dn);
+ if (dt_mac_addr) {
+ mac_from = "device tree";
+ memcpy(dev->dev_addr, dt_mac_addr, ETH_ALEN);
+ } else {
+ mvneta_get_mac_addr(pp, hw_mac_addr);
+ if (is_valid_ether_addr(hw_mac_addr)) {
+ mac_from = "hardware";
+ memcpy(dev->dev_addr, hw_mac_addr, ETH_ALEN);
+ } else {
+ mac_from = "random";
+ eth_hw_addr_random(dev);
+ }
+ }
+
+ if (of_device_is_compatible(dn, "marvell,armada-370-neta"))
+ pp->tx_csum_limit = 1600;
+
+ pp->tx_ring_size = MVNETA_MAX_TXD;
+ pp->rx_ring_size = MVNETA_MAX_RXD;
+
+ pp->dev = dev;
+ SET_NETDEV_DEV(dev, &pdev->dev);
+
+ err = mvneta_init(&pdev->dev, pp);
+ if (err < 0)
+ goto err_free_stats;
+
+ err = mvneta_port_power_up(pp, phy_mode);
+ if (err < 0) {
+ dev_err(&pdev->dev, "can't power up port\n");
+ goto err_free_stats;
+ }
+
+ dram_target_info = mv_mbus_dram_info();
+ if (dram_target_info)
+ mvneta_conf_mbus_windows(pp, dram_target_info);
+
+ netif_napi_add(dev, &pp->napi, mvneta_poll, NAPI_POLL_WEIGHT);
+
+ dev->features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO;
+ dev->hw_features |= dev->features;
+ dev->vlan_features |= dev->features;
+ dev->priv_flags |= IFF_UNICAST_FLT;
+ dev->gso_max_segs = MVNETA_MAX_TSO_SEGS;
+
+ err = register_netdev(dev);
+ if (err < 0) {
+ dev_err(&pdev->dev, "failed to register\n");
+ goto err_free_stats;
+ }
+
+ netdev_info(dev, "Using %s mac address %pM\n", mac_from,
+ dev->dev_addr);
+
+ platform_set_drvdata(pdev, pp->dev);
+
+ if (pp->use_inband_status) {
+ struct phy_device *phy = of_phy_find_device(dn);
+
+ mvneta_fixed_link_update(pp, phy);
+ }
+
+ return 0;
+
+err_free_stats:
+ free_percpu(pp->stats);
+err_clk:
+ clk_disable_unprepare(pp->clk);
+err_put_phy_node:
+ of_node_put(phy_node);
+err_free_irq:
+ irq_dispose_mapping(dev->irq);
+err_free_netdev:
+ free_netdev(dev);
+ return err;
+}
+
+/* Device removal routine */
+static int mvneta_remove(struct platform_device *pdev)
+{
+ struct net_device *dev = platform_get_drvdata(pdev);
+ struct mvneta_port *pp = netdev_priv(dev);
+
+ unregister_netdev(dev);
+ clk_disable_unprepare(pp->clk);
+ free_percpu(pp->stats);
+ irq_dispose_mapping(dev->irq);
+ of_node_put(pp->phy_node);
+ free_netdev(dev);
+
+ return 0;
+}
+
+static const struct of_device_id mvneta_match[] = {
+ { .compatible = "marvell,armada-370-neta" },
+ { .compatible = "marvell,armada-xp-neta" },
+ { }
+};
+MODULE_DEVICE_TABLE(of, mvneta_match);
+
+static struct platform_driver mvneta_driver = {
+ .probe = mvneta_probe,
+ .remove = mvneta_remove,
+ .driver = {
+ .name = MVNETA_DRIVER_NAME,
+ .of_match_table = mvneta_match,
+ },
+};
+
+module_platform_driver(mvneta_driver);
+
+MODULE_DESCRIPTION("Marvell NETA Ethernet Driver - www.marvell.com");
+MODULE_AUTHOR("Rami Rosen <rosenr@marvell.com>, Thomas Petazzoni <thomas.petazzoni@free-electrons.com>");
+MODULE_LICENSE("GPL");
+
+module_param(rxq_number, int, S_IRUGO);
+module_param(txq_number, int, S_IRUGO);
+
+module_param(rxq_def, int, S_IRUGO);
+module_param(rx_copybreak, int, S_IRUGO | S_IWUSR);
diff --git a/drivers/net/ethernet/marvell/mvpp2.c b/drivers/net/ethernet/marvell/mvpp2.c
new file mode 100644
index 000000000..3e8b1bfb1
--- /dev/null
+++ b/drivers/net/ethernet/marvell/mvpp2.c
@@ -0,0 +1,6435 @@
+/*
+ * Driver for Marvell PPv2 network controller for Armada 375 SoC.
+ *
+ * Copyright (C) 2014 Marvell
+ *
+ * Marcin Wojtas <mw@semihalf.com>
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <linux/kernel.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/platform_device.h>
+#include <linux/skbuff.h>
+#include <linux/inetdevice.h>
+#include <linux/mbus.h>
+#include <linux/module.h>
+#include <linux/interrupt.h>
+#include <linux/cpumask.h>
+#include <linux/of.h>
+#include <linux/of_irq.h>
+#include <linux/of_mdio.h>
+#include <linux/of_net.h>
+#include <linux/of_address.h>
+#include <linux/phy.h>
+#include <linux/clk.h>
+#include <uapi/linux/ppp_defs.h>
+#include <net/ip.h>
+#include <net/ipv6.h>
+
+/* RX Fifo Registers */
+#define MVPP2_RX_DATA_FIFO_SIZE_REG(port) (0x00 + 4 * (port))
+#define MVPP2_RX_ATTR_FIFO_SIZE_REG(port) (0x20 + 4 * (port))
+#define MVPP2_RX_MIN_PKT_SIZE_REG 0x60
+#define MVPP2_RX_FIFO_INIT_REG 0x64
+
+/* RX DMA Top Registers */
+#define MVPP2_RX_CTRL_REG(port) (0x140 + 4 * (port))
+#define MVPP2_RX_LOW_LATENCY_PKT_SIZE(s) (((s) & 0xfff) << 16)
+#define MVPP2_RX_USE_PSEUDO_FOR_CSUM_MASK BIT(31)
+#define MVPP2_POOL_BUF_SIZE_REG(pool) (0x180 + 4 * (pool))
+#define MVPP2_POOL_BUF_SIZE_OFFSET 5
+#define MVPP2_RXQ_CONFIG_REG(rxq) (0x800 + 4 * (rxq))
+#define MVPP2_SNOOP_PKT_SIZE_MASK 0x1ff
+#define MVPP2_SNOOP_BUF_HDR_MASK BIT(9)
+#define MVPP2_RXQ_POOL_SHORT_OFFS 20
+#define MVPP2_RXQ_POOL_SHORT_MASK 0x700000
+#define MVPP2_RXQ_POOL_LONG_OFFS 24
+#define MVPP2_RXQ_POOL_LONG_MASK 0x7000000
+#define MVPP2_RXQ_PACKET_OFFSET_OFFS 28
+#define MVPP2_RXQ_PACKET_OFFSET_MASK 0x70000000
+#define MVPP2_RXQ_DISABLE_MASK BIT(31)
+
+/* Parser Registers */
+#define MVPP2_PRS_INIT_LOOKUP_REG 0x1000
+#define MVPP2_PRS_PORT_LU_MAX 0xf
+#define MVPP2_PRS_PORT_LU_MASK(port) (0xff << ((port) * 4))
+#define MVPP2_PRS_PORT_LU_VAL(port, val) ((val) << ((port) * 4))
+#define MVPP2_PRS_INIT_OFFS_REG(port) (0x1004 + ((port) & 4))
+#define MVPP2_PRS_INIT_OFF_MASK(port) (0x3f << (((port) % 4) * 8))
+#define MVPP2_PRS_INIT_OFF_VAL(port, val) ((val) << (((port) % 4) * 8))
+#define MVPP2_PRS_MAX_LOOP_REG(port) (0x100c + ((port) & 4))
+#define MVPP2_PRS_MAX_LOOP_MASK(port) (0xff << (((port) % 4) * 8))
+#define MVPP2_PRS_MAX_LOOP_VAL(port, val) ((val) << (((port) % 4) * 8))
+#define MVPP2_PRS_TCAM_IDX_REG 0x1100
+#define MVPP2_PRS_TCAM_DATA_REG(idx) (0x1104 + (idx) * 4)
+#define MVPP2_PRS_TCAM_INV_MASK BIT(31)
+#define MVPP2_PRS_SRAM_IDX_REG 0x1200
+#define MVPP2_PRS_SRAM_DATA_REG(idx) (0x1204 + (idx) * 4)
+#define MVPP2_PRS_TCAM_CTRL_REG 0x1230
+#define MVPP2_PRS_TCAM_EN_MASK BIT(0)
+
+/* Classifier Registers */
+#define MVPP2_CLS_MODE_REG 0x1800
+#define MVPP2_CLS_MODE_ACTIVE_MASK BIT(0)
+#define MVPP2_CLS_PORT_WAY_REG 0x1810
+#define MVPP2_CLS_PORT_WAY_MASK(port) (1 << (port))
+#define MVPP2_CLS_LKP_INDEX_REG 0x1814
+#define MVPP2_CLS_LKP_INDEX_WAY_OFFS 6
+#define MVPP2_CLS_LKP_TBL_REG 0x1818
+#define MVPP2_CLS_LKP_TBL_RXQ_MASK 0xff
+#define MVPP2_CLS_LKP_TBL_LOOKUP_EN_MASK BIT(25)
+#define MVPP2_CLS_FLOW_INDEX_REG 0x1820
+#define MVPP2_CLS_FLOW_TBL0_REG 0x1824
+#define MVPP2_CLS_FLOW_TBL1_REG 0x1828
+#define MVPP2_CLS_FLOW_TBL2_REG 0x182c
+#define MVPP2_CLS_OVERSIZE_RXQ_LOW_REG(port) (0x1980 + ((port) * 4))
+#define MVPP2_CLS_OVERSIZE_RXQ_LOW_BITS 3
+#define MVPP2_CLS_OVERSIZE_RXQ_LOW_MASK 0x7
+#define MVPP2_CLS_SWFWD_P2HQ_REG(port) (0x19b0 + ((port) * 4))
+#define MVPP2_CLS_SWFWD_PCTRL_REG 0x19d0
+#define MVPP2_CLS_SWFWD_PCTRL_MASK(port) (1 << (port))
+
+/* Descriptor Manager Top Registers */
+#define MVPP2_RXQ_NUM_REG 0x2040
+#define MVPP2_RXQ_DESC_ADDR_REG 0x2044
+#define MVPP2_RXQ_DESC_SIZE_REG 0x2048
+#define MVPP2_RXQ_DESC_SIZE_MASK 0x3ff0
+#define MVPP2_RXQ_STATUS_UPDATE_REG(rxq) (0x3000 + 4 * (rxq))
+#define MVPP2_RXQ_NUM_PROCESSED_OFFSET 0
+#define MVPP2_RXQ_NUM_NEW_OFFSET 16
+#define MVPP2_RXQ_STATUS_REG(rxq) (0x3400 + 4 * (rxq))
+#define MVPP2_RXQ_OCCUPIED_MASK 0x3fff
+#define MVPP2_RXQ_NON_OCCUPIED_OFFSET 16
+#define MVPP2_RXQ_NON_OCCUPIED_MASK 0x3fff0000
+#define MVPP2_RXQ_THRESH_REG 0x204c
+#define MVPP2_OCCUPIED_THRESH_OFFSET 0
+#define MVPP2_OCCUPIED_THRESH_MASK 0x3fff
+#define MVPP2_RXQ_INDEX_REG 0x2050
+#define MVPP2_TXQ_NUM_REG 0x2080
+#define MVPP2_TXQ_DESC_ADDR_REG 0x2084
+#define MVPP2_TXQ_DESC_SIZE_REG 0x2088
+#define MVPP2_TXQ_DESC_SIZE_MASK 0x3ff0
+#define MVPP2_AGGR_TXQ_UPDATE_REG 0x2090
+#define MVPP2_TXQ_THRESH_REG 0x2094
+#define MVPP2_TRANSMITTED_THRESH_OFFSET 16
+#define MVPP2_TRANSMITTED_THRESH_MASK 0x3fff0000
+#define MVPP2_TXQ_INDEX_REG 0x2098
+#define MVPP2_TXQ_PREF_BUF_REG 0x209c
+#define MVPP2_PREF_BUF_PTR(desc) ((desc) & 0xfff)
+#define MVPP2_PREF_BUF_SIZE_4 (BIT(12) | BIT(13))
+#define MVPP2_PREF_BUF_SIZE_16 (BIT(12) | BIT(14))
+#define MVPP2_PREF_BUF_THRESH(val) ((val) << 17)
+#define MVPP2_TXQ_DRAIN_EN_MASK BIT(31)
+#define MVPP2_TXQ_PENDING_REG 0x20a0
+#define MVPP2_TXQ_PENDING_MASK 0x3fff
+#define MVPP2_TXQ_INT_STATUS_REG 0x20a4
+#define MVPP2_TXQ_SENT_REG(txq) (0x3c00 + 4 * (txq))
+#define MVPP2_TRANSMITTED_COUNT_OFFSET 16
+#define MVPP2_TRANSMITTED_COUNT_MASK 0x3fff0000
+#define MVPP2_TXQ_RSVD_REQ_REG 0x20b0
+#define MVPP2_TXQ_RSVD_REQ_Q_OFFSET 16
+#define MVPP2_TXQ_RSVD_RSLT_REG 0x20b4
+#define MVPP2_TXQ_RSVD_RSLT_MASK 0x3fff
+#define MVPP2_TXQ_RSVD_CLR_REG 0x20b8
+#define MVPP2_TXQ_RSVD_CLR_OFFSET 16
+#define MVPP2_AGGR_TXQ_DESC_ADDR_REG(cpu) (0x2100 + 4 * (cpu))
+#define MVPP2_AGGR_TXQ_DESC_SIZE_REG(cpu) (0x2140 + 4 * (cpu))
+#define MVPP2_AGGR_TXQ_DESC_SIZE_MASK 0x3ff0
+#define MVPP2_AGGR_TXQ_STATUS_REG(cpu) (0x2180 + 4 * (cpu))
+#define MVPP2_AGGR_TXQ_PENDING_MASK 0x3fff
+#define MVPP2_AGGR_TXQ_INDEX_REG(cpu) (0x21c0 + 4 * (cpu))
+
+/* MBUS bridge registers */
+#define MVPP2_WIN_BASE(w) (0x4000 + ((w) << 2))
+#define MVPP2_WIN_SIZE(w) (0x4020 + ((w) << 2))
+#define MVPP2_WIN_REMAP(w) (0x4040 + ((w) << 2))
+#define MVPP2_BASE_ADDR_ENABLE 0x4060
+
+/* Interrupt Cause and Mask registers */
+#define MVPP2_ISR_RX_THRESHOLD_REG(rxq) (0x5200 + 4 * (rxq))
+#define MVPP2_ISR_RXQ_GROUP_REG(rxq) (0x5400 + 4 * (rxq))
+#define MVPP2_ISR_ENABLE_REG(port) (0x5420 + 4 * (port))
+#define MVPP2_ISR_ENABLE_INTERRUPT(mask) ((mask) & 0xffff)
+#define MVPP2_ISR_DISABLE_INTERRUPT(mask) (((mask) << 16) & 0xffff0000)
+#define MVPP2_ISR_RX_TX_CAUSE_REG(port) (0x5480 + 4 * (port))
+#define MVPP2_CAUSE_RXQ_OCCUP_DESC_ALL_MASK 0xffff
+#define MVPP2_CAUSE_TXQ_OCCUP_DESC_ALL_MASK 0xff0000
+#define MVPP2_CAUSE_RX_FIFO_OVERRUN_MASK BIT(24)
+#define MVPP2_CAUSE_FCS_ERR_MASK BIT(25)
+#define MVPP2_CAUSE_TX_FIFO_UNDERRUN_MASK BIT(26)
+#define MVPP2_CAUSE_TX_EXCEPTION_SUM_MASK BIT(29)
+#define MVPP2_CAUSE_RX_EXCEPTION_SUM_MASK BIT(30)
+#define MVPP2_CAUSE_MISC_SUM_MASK BIT(31)
+#define MVPP2_ISR_RX_TX_MASK_REG(port) (0x54a0 + 4 * (port))
+#define MVPP2_ISR_PON_RX_TX_MASK_REG 0x54bc
+#define MVPP2_PON_CAUSE_RXQ_OCCUP_DESC_ALL_MASK 0xffff
+#define MVPP2_PON_CAUSE_TXP_OCCUP_DESC_ALL_MASK 0x3fc00000
+#define MVPP2_PON_CAUSE_MISC_SUM_MASK BIT(31)
+#define MVPP2_ISR_MISC_CAUSE_REG 0x55b0
+
+/* Buffer Manager registers */
+#define MVPP2_BM_POOL_BASE_REG(pool) (0x6000 + ((pool) * 4))
+#define MVPP2_BM_POOL_BASE_ADDR_MASK 0xfffff80
+#define MVPP2_BM_POOL_SIZE_REG(pool) (0x6040 + ((pool) * 4))
+#define MVPP2_BM_POOL_SIZE_MASK 0xfff0
+#define MVPP2_BM_POOL_READ_PTR_REG(pool) (0x6080 + ((pool) * 4))
+#define MVPP2_BM_POOL_GET_READ_PTR_MASK 0xfff0
+#define MVPP2_BM_POOL_PTRS_NUM_REG(pool) (0x60c0 + ((pool) * 4))
+#define MVPP2_BM_POOL_PTRS_NUM_MASK 0xfff0
+#define MVPP2_BM_BPPI_READ_PTR_REG(pool) (0x6100 + ((pool) * 4))
+#define MVPP2_BM_BPPI_PTRS_NUM_REG(pool) (0x6140 + ((pool) * 4))
+#define MVPP2_BM_BPPI_PTR_NUM_MASK 0x7ff
+#define MVPP2_BM_BPPI_PREFETCH_FULL_MASK BIT(16)
+#define MVPP2_BM_POOL_CTRL_REG(pool) (0x6200 + ((pool) * 4))
+#define MVPP2_BM_START_MASK BIT(0)
+#define MVPP2_BM_STOP_MASK BIT(1)
+#define MVPP2_BM_STATE_MASK BIT(4)
+#define MVPP2_BM_LOW_THRESH_OFFS 8
+#define MVPP2_BM_LOW_THRESH_MASK 0x7f00
+#define MVPP2_BM_LOW_THRESH_VALUE(val) ((val) << \
+ MVPP2_BM_LOW_THRESH_OFFS)
+#define MVPP2_BM_HIGH_THRESH_OFFS 16
+#define MVPP2_BM_HIGH_THRESH_MASK 0x7f0000
+#define MVPP2_BM_HIGH_THRESH_VALUE(val) ((val) << \
+ MVPP2_BM_HIGH_THRESH_OFFS)
+#define MVPP2_BM_INTR_CAUSE_REG(pool) (0x6240 + ((pool) * 4))
+#define MVPP2_BM_RELEASED_DELAY_MASK BIT(0)
+#define MVPP2_BM_ALLOC_FAILED_MASK BIT(1)
+#define MVPP2_BM_BPPE_EMPTY_MASK BIT(2)
+#define MVPP2_BM_BPPE_FULL_MASK BIT(3)
+#define MVPP2_BM_AVAILABLE_BP_LOW_MASK BIT(4)
+#define MVPP2_BM_INTR_MASK_REG(pool) (0x6280 + ((pool) * 4))
+#define MVPP2_BM_PHY_ALLOC_REG(pool) (0x6400 + ((pool) * 4))
+#define MVPP2_BM_PHY_ALLOC_GRNTD_MASK BIT(0)
+#define MVPP2_BM_VIRT_ALLOC_REG 0x6440
+#define MVPP2_BM_PHY_RLS_REG(pool) (0x6480 + ((pool) * 4))
+#define MVPP2_BM_PHY_RLS_MC_BUFF_MASK BIT(0)
+#define MVPP2_BM_PHY_RLS_PRIO_EN_MASK BIT(1)
+#define MVPP2_BM_PHY_RLS_GRNTD_MASK BIT(2)
+#define MVPP2_BM_VIRT_RLS_REG 0x64c0
+#define MVPP2_BM_MC_RLS_REG 0x64c4
+#define MVPP2_BM_MC_ID_MASK 0xfff
+#define MVPP2_BM_FORCE_RELEASE_MASK BIT(12)
+
+/* TX Scheduler registers */
+#define MVPP2_TXP_SCHED_PORT_INDEX_REG 0x8000
+#define MVPP2_TXP_SCHED_Q_CMD_REG 0x8004
+#define MVPP2_TXP_SCHED_ENQ_MASK 0xff
+#define MVPP2_TXP_SCHED_DISQ_OFFSET 8
+#define MVPP2_TXP_SCHED_CMD_1_REG 0x8010
+#define MVPP2_TXP_SCHED_PERIOD_REG 0x8018
+#define MVPP2_TXP_SCHED_MTU_REG 0x801c
+#define MVPP2_TXP_MTU_MAX 0x7FFFF
+#define MVPP2_TXP_SCHED_REFILL_REG 0x8020
+#define MVPP2_TXP_REFILL_TOKENS_ALL_MASK 0x7ffff
+#define MVPP2_TXP_REFILL_PERIOD_ALL_MASK 0x3ff00000
+#define MVPP2_TXP_REFILL_PERIOD_MASK(v) ((v) << 20)
+#define MVPP2_TXP_SCHED_TOKEN_SIZE_REG 0x8024
+#define MVPP2_TXP_TOKEN_SIZE_MAX 0xffffffff
+#define MVPP2_TXQ_SCHED_REFILL_REG(q) (0x8040 + ((q) << 2))
+#define MVPP2_TXQ_REFILL_TOKENS_ALL_MASK 0x7ffff
+#define MVPP2_TXQ_REFILL_PERIOD_ALL_MASK 0x3ff00000
+#define MVPP2_TXQ_REFILL_PERIOD_MASK(v) ((v) << 20)
+#define MVPP2_TXQ_SCHED_TOKEN_SIZE_REG(q) (0x8060 + ((q) << 2))
+#define MVPP2_TXQ_TOKEN_SIZE_MAX 0x7fffffff
+#define MVPP2_TXQ_SCHED_TOKEN_CNTR_REG(q) (0x8080 + ((q) << 2))
+#define MVPP2_TXQ_TOKEN_CNTR_MAX 0xffffffff
+
+/* TX general registers */
+#define MVPP2_TX_SNOOP_REG 0x8800
+#define MVPP2_TX_PORT_FLUSH_REG 0x8810
+#define MVPP2_TX_PORT_FLUSH_MASK(port) (1 << (port))
+
+/* LMS registers */
+#define MVPP2_SRC_ADDR_MIDDLE 0x24
+#define MVPP2_SRC_ADDR_HIGH 0x28
+#define MVPP2_PHY_AN_CFG0_REG 0x34
+#define MVPP2_PHY_AN_STOP_SMI0_MASK BIT(7)
+#define MVPP2_MIB_COUNTERS_BASE(port) (0x1000 + ((port) >> 1) * \
+ 0x400 + (port) * 0x400)
+#define MVPP2_MIB_LATE_COLLISION 0x7c
+#define MVPP2_ISR_SUM_MASK_REG 0x220c
+#define MVPP2_MNG_EXTENDED_GLOBAL_CTRL_REG 0x305c
+#define MVPP2_EXT_GLOBAL_CTRL_DEFAULT 0x27
+
+/* Per-port registers */
+#define MVPP2_GMAC_CTRL_0_REG 0x0
+#define MVPP2_GMAC_PORT_EN_MASK BIT(0)
+#define MVPP2_GMAC_MAX_RX_SIZE_OFFS 2
+#define MVPP2_GMAC_MAX_RX_SIZE_MASK 0x7ffc
+#define MVPP2_GMAC_MIB_CNTR_EN_MASK BIT(15)
+#define MVPP2_GMAC_CTRL_1_REG 0x4
+#define MVPP2_GMAC_PERIODIC_XON_EN_MASK BIT(1)
+#define MVPP2_GMAC_GMII_LB_EN_MASK BIT(5)
+#define MVPP2_GMAC_PCS_LB_EN_BIT 6
+#define MVPP2_GMAC_PCS_LB_EN_MASK BIT(6)
+#define MVPP2_GMAC_SA_LOW_OFFS 7
+#define MVPP2_GMAC_CTRL_2_REG 0x8
+#define MVPP2_GMAC_INBAND_AN_MASK BIT(0)
+#define MVPP2_GMAC_PCS_ENABLE_MASK BIT(3)
+#define MVPP2_GMAC_PORT_RGMII_MASK BIT(4)
+#define MVPP2_GMAC_PORT_RESET_MASK BIT(6)
+#define MVPP2_GMAC_AUTONEG_CONFIG 0xc
+#define MVPP2_GMAC_FORCE_LINK_DOWN BIT(0)
+#define MVPP2_GMAC_FORCE_LINK_PASS BIT(1)
+#define MVPP2_GMAC_CONFIG_MII_SPEED BIT(5)
+#define MVPP2_GMAC_CONFIG_GMII_SPEED BIT(6)
+#define MVPP2_GMAC_AN_SPEED_EN BIT(7)
+#define MVPP2_GMAC_FC_ADV_EN BIT(9)
+#define MVPP2_GMAC_CONFIG_FULL_DUPLEX BIT(12)
+#define MVPP2_GMAC_AN_DUPLEX_EN BIT(13)
+#define MVPP2_GMAC_PORT_FIFO_CFG_1_REG 0x1c
+#define MVPP2_GMAC_TX_FIFO_MIN_TH_OFFS 6
+#define MVPP2_GMAC_TX_FIFO_MIN_TH_ALL_MASK 0x1fc0
+#define MVPP2_GMAC_TX_FIFO_MIN_TH_MASK(v) (((v) << 6) & \
+ MVPP2_GMAC_TX_FIFO_MIN_TH_ALL_MASK)
+
+#define MVPP2_CAUSE_TXQ_SENT_DESC_ALL_MASK 0xff
+
+/* Descriptor ring Macros */
+#define MVPP2_QUEUE_NEXT_DESC(q, index) \
+ (((index) < (q)->last_desc) ? ((index) + 1) : 0)
+
+/* Various constants */
+
+/* Coalescing */
+#define MVPP2_TXDONE_COAL_PKTS_THRESH 15
+#define MVPP2_RX_COAL_PKTS 32
+#define MVPP2_RX_COAL_USEC 100
+
+/* The two bytes Marvell header. Either contains a special value used
+ * by Marvell switches when a specific hardware mode is enabled (not
+ * supported by this driver) or is filled automatically by zeroes on
+ * the RX side. Those two bytes being at the front of the Ethernet
+ * header, they allow to have the IP header aligned on a 4 bytes
+ * boundary automatically: the hardware skips those two bytes on its
+ * own.
+ */
+#define MVPP2_MH_SIZE 2
+#define MVPP2_ETH_TYPE_LEN 2
+#define MVPP2_PPPOE_HDR_SIZE 8
+#define MVPP2_VLAN_TAG_LEN 4
+
+/* Lbtd 802.3 type */
+#define MVPP2_IP_LBDT_TYPE 0xfffa
+
+#define MVPP2_CPU_D_CACHE_LINE_SIZE 32
+#define MVPP2_TX_CSUM_MAX_SIZE 9800
+
+/* Timeout constants */
+#define MVPP2_TX_DISABLE_TIMEOUT_MSEC 1000
+#define MVPP2_TX_PENDING_TIMEOUT_MSEC 1000
+
+#define MVPP2_TX_MTU_MAX 0x7ffff
+
+/* Maximum number of T-CONTs of PON port */
+#define MVPP2_MAX_TCONT 16
+
+/* Maximum number of supported ports */
+#define MVPP2_MAX_PORTS 4
+
+/* Maximum number of TXQs used by single port */
+#define MVPP2_MAX_TXQ 8
+
+/* Maximum number of RXQs used by single port */
+#define MVPP2_MAX_RXQ 8
+
+/* Dfault number of RXQs in use */
+#define MVPP2_DEFAULT_RXQ 4
+
+/* Total number of RXQs available to all ports */
+#define MVPP2_RXQ_TOTAL_NUM (MVPP2_MAX_PORTS * MVPP2_MAX_RXQ)
+
+/* Max number of Rx descriptors */
+#define MVPP2_MAX_RXD 128
+
+/* Max number of Tx descriptors */
+#define MVPP2_MAX_TXD 1024
+
+/* Amount of Tx descriptors that can be reserved at once by CPU */
+#define MVPP2_CPU_DESC_CHUNK 64
+
+/* Max number of Tx descriptors in each aggregated queue */
+#define MVPP2_AGGR_TXQ_SIZE 256
+
+/* Descriptor aligned size */
+#define MVPP2_DESC_ALIGNED_SIZE 32
+
+/* Descriptor alignment mask */
+#define MVPP2_TX_DESC_ALIGN (MVPP2_DESC_ALIGNED_SIZE - 1)
+
+/* RX FIFO constants */
+#define MVPP2_RX_FIFO_PORT_DATA_SIZE 0x2000
+#define MVPP2_RX_FIFO_PORT_ATTR_SIZE 0x80
+#define MVPP2_RX_FIFO_PORT_MIN_PKT 0x80
+
+/* RX buffer constants */
+#define MVPP2_SKB_SHINFO_SIZE \
+ SKB_DATA_ALIGN(sizeof(struct skb_shared_info))
+
+#define MVPP2_RX_PKT_SIZE(mtu) \
+ ALIGN((mtu) + MVPP2_MH_SIZE + MVPP2_VLAN_TAG_LEN + \
+ ETH_HLEN + ETH_FCS_LEN, MVPP2_CPU_D_CACHE_LINE_SIZE)
+
+#define MVPP2_RX_BUF_SIZE(pkt_size) ((pkt_size) + NET_SKB_PAD)
+#define MVPP2_RX_TOTAL_SIZE(buf_size) ((buf_size) + MVPP2_SKB_SHINFO_SIZE)
+#define MVPP2_RX_MAX_PKT_SIZE(total_size) \
+ ((total_size) - NET_SKB_PAD - MVPP2_SKB_SHINFO_SIZE)
+
+#define MVPP2_BIT_TO_BYTE(bit) ((bit) / 8)
+
+/* IPv6 max L3 address size */
+#define MVPP2_MAX_L3_ADDR_SIZE 16
+
+/* Port flags */
+#define MVPP2_F_LOOPBACK BIT(0)
+
+/* Marvell tag types */
+enum mvpp2_tag_type {
+ MVPP2_TAG_TYPE_NONE = 0,
+ MVPP2_TAG_TYPE_MH = 1,
+ MVPP2_TAG_TYPE_DSA = 2,
+ MVPP2_TAG_TYPE_EDSA = 3,
+ MVPP2_TAG_TYPE_VLAN = 4,
+ MVPP2_TAG_TYPE_LAST = 5
+};
+
+/* Parser constants */
+#define MVPP2_PRS_TCAM_SRAM_SIZE 256
+#define MVPP2_PRS_TCAM_WORDS 6
+#define MVPP2_PRS_SRAM_WORDS 4
+#define MVPP2_PRS_FLOW_ID_SIZE 64
+#define MVPP2_PRS_FLOW_ID_MASK 0x3f
+#define MVPP2_PRS_TCAM_ENTRY_INVALID 1
+#define MVPP2_PRS_TCAM_DSA_TAGGED_BIT BIT(5)
+#define MVPP2_PRS_IPV4_HEAD 0x40
+#define MVPP2_PRS_IPV4_HEAD_MASK 0xf0
+#define MVPP2_PRS_IPV4_MC 0xe0
+#define MVPP2_PRS_IPV4_MC_MASK 0xf0
+#define MVPP2_PRS_IPV4_BC_MASK 0xff
+#define MVPP2_PRS_IPV4_IHL 0x5
+#define MVPP2_PRS_IPV4_IHL_MASK 0xf
+#define MVPP2_PRS_IPV6_MC 0xff
+#define MVPP2_PRS_IPV6_MC_MASK 0xff
+#define MVPP2_PRS_IPV6_HOP_MASK 0xff
+#define MVPP2_PRS_TCAM_PROTO_MASK 0xff
+#define MVPP2_PRS_TCAM_PROTO_MASK_L 0x3f
+#define MVPP2_PRS_DBL_VLANS_MAX 100
+
+/* Tcam structure:
+ * - lookup ID - 4 bits
+ * - port ID - 1 byte
+ * - additional information - 1 byte
+ * - header data - 8 bytes
+ * The fields are represented by MVPP2_PRS_TCAM_DATA_REG(5)->(0).
+ */
+#define MVPP2_PRS_AI_BITS 8
+#define MVPP2_PRS_PORT_MASK 0xff
+#define MVPP2_PRS_LU_MASK 0xf
+#define MVPP2_PRS_TCAM_DATA_BYTE(offs) \
+ (((offs) - ((offs) % 2)) * 2 + ((offs) % 2))
+#define MVPP2_PRS_TCAM_DATA_BYTE_EN(offs) \
+ (((offs) * 2) - ((offs) % 2) + 2)
+#define MVPP2_PRS_TCAM_AI_BYTE 16
+#define MVPP2_PRS_TCAM_PORT_BYTE 17
+#define MVPP2_PRS_TCAM_LU_BYTE 20
+#define MVPP2_PRS_TCAM_EN_OFFS(offs) ((offs) + 2)
+#define MVPP2_PRS_TCAM_INV_WORD 5
+/* Tcam entries ID */
+#define MVPP2_PE_DROP_ALL 0
+#define MVPP2_PE_FIRST_FREE_TID 1
+#define MVPP2_PE_LAST_FREE_TID (MVPP2_PRS_TCAM_SRAM_SIZE - 31)
+#define MVPP2_PE_IP6_EXT_PROTO_UN (MVPP2_PRS_TCAM_SRAM_SIZE - 30)
+#define MVPP2_PE_MAC_MC_IP6 (MVPP2_PRS_TCAM_SRAM_SIZE - 29)
+#define MVPP2_PE_IP6_ADDR_UN (MVPP2_PRS_TCAM_SRAM_SIZE - 28)
+#define MVPP2_PE_IP4_ADDR_UN (MVPP2_PRS_TCAM_SRAM_SIZE - 27)
+#define MVPP2_PE_LAST_DEFAULT_FLOW (MVPP2_PRS_TCAM_SRAM_SIZE - 26)
+#define MVPP2_PE_FIRST_DEFAULT_FLOW (MVPP2_PRS_TCAM_SRAM_SIZE - 19)
+#define MVPP2_PE_EDSA_TAGGED (MVPP2_PRS_TCAM_SRAM_SIZE - 18)
+#define MVPP2_PE_EDSA_UNTAGGED (MVPP2_PRS_TCAM_SRAM_SIZE - 17)
+#define MVPP2_PE_DSA_TAGGED (MVPP2_PRS_TCAM_SRAM_SIZE - 16)
+#define MVPP2_PE_DSA_UNTAGGED (MVPP2_PRS_TCAM_SRAM_SIZE - 15)
+#define MVPP2_PE_ETYPE_EDSA_TAGGED (MVPP2_PRS_TCAM_SRAM_SIZE - 14)
+#define MVPP2_PE_ETYPE_EDSA_UNTAGGED (MVPP2_PRS_TCAM_SRAM_SIZE - 13)
+#define MVPP2_PE_ETYPE_DSA_TAGGED (MVPP2_PRS_TCAM_SRAM_SIZE - 12)
+#define MVPP2_PE_ETYPE_DSA_UNTAGGED (MVPP2_PRS_TCAM_SRAM_SIZE - 11)
+#define MVPP2_PE_MH_DEFAULT (MVPP2_PRS_TCAM_SRAM_SIZE - 10)
+#define MVPP2_PE_DSA_DEFAULT (MVPP2_PRS_TCAM_SRAM_SIZE - 9)
+#define MVPP2_PE_IP6_PROTO_UN (MVPP2_PRS_TCAM_SRAM_SIZE - 8)
+#define MVPP2_PE_IP4_PROTO_UN (MVPP2_PRS_TCAM_SRAM_SIZE - 7)
+#define MVPP2_PE_ETH_TYPE_UN (MVPP2_PRS_TCAM_SRAM_SIZE - 6)
+#define MVPP2_PE_VLAN_DBL (MVPP2_PRS_TCAM_SRAM_SIZE - 5)
+#define MVPP2_PE_VLAN_NONE (MVPP2_PRS_TCAM_SRAM_SIZE - 4)
+#define MVPP2_PE_MAC_MC_ALL (MVPP2_PRS_TCAM_SRAM_SIZE - 3)
+#define MVPP2_PE_MAC_PROMISCUOUS (MVPP2_PRS_TCAM_SRAM_SIZE - 2)
+#define MVPP2_PE_MAC_NON_PROMISCUOUS (MVPP2_PRS_TCAM_SRAM_SIZE - 1)
+
+/* Sram structure
+ * The fields are represented by MVPP2_PRS_TCAM_DATA_REG(3)->(0).
+ */
+#define MVPP2_PRS_SRAM_RI_OFFS 0
+#define MVPP2_PRS_SRAM_RI_WORD 0
+#define MVPP2_PRS_SRAM_RI_CTRL_OFFS 32
+#define MVPP2_PRS_SRAM_RI_CTRL_WORD 1
+#define MVPP2_PRS_SRAM_RI_CTRL_BITS 32
+#define MVPP2_PRS_SRAM_SHIFT_OFFS 64
+#define MVPP2_PRS_SRAM_SHIFT_SIGN_BIT 72
+#define MVPP2_PRS_SRAM_UDF_OFFS 73
+#define MVPP2_PRS_SRAM_UDF_BITS 8
+#define MVPP2_PRS_SRAM_UDF_MASK 0xff
+#define MVPP2_PRS_SRAM_UDF_SIGN_BIT 81
+#define MVPP2_PRS_SRAM_UDF_TYPE_OFFS 82
+#define MVPP2_PRS_SRAM_UDF_TYPE_MASK 0x7
+#define MVPP2_PRS_SRAM_UDF_TYPE_L3 1
+#define MVPP2_PRS_SRAM_UDF_TYPE_L4 4
+#define MVPP2_PRS_SRAM_OP_SEL_SHIFT_OFFS 85
+#define MVPP2_PRS_SRAM_OP_SEL_SHIFT_MASK 0x3
+#define MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD 1
+#define MVPP2_PRS_SRAM_OP_SEL_SHIFT_IP4_ADD 2
+#define MVPP2_PRS_SRAM_OP_SEL_SHIFT_IP6_ADD 3
+#define MVPP2_PRS_SRAM_OP_SEL_UDF_OFFS 87
+#define MVPP2_PRS_SRAM_OP_SEL_UDF_BITS 2
+#define MVPP2_PRS_SRAM_OP_SEL_UDF_MASK 0x3
+#define MVPP2_PRS_SRAM_OP_SEL_UDF_ADD 0
+#define MVPP2_PRS_SRAM_OP_SEL_UDF_IP4_ADD 2
+#define MVPP2_PRS_SRAM_OP_SEL_UDF_IP6_ADD 3
+#define MVPP2_PRS_SRAM_OP_SEL_BASE_OFFS 89
+#define MVPP2_PRS_SRAM_AI_OFFS 90
+#define MVPP2_PRS_SRAM_AI_CTRL_OFFS 98
+#define MVPP2_PRS_SRAM_AI_CTRL_BITS 8
+#define MVPP2_PRS_SRAM_AI_MASK 0xff
+#define MVPP2_PRS_SRAM_NEXT_LU_OFFS 106
+#define MVPP2_PRS_SRAM_NEXT_LU_MASK 0xf
+#define MVPP2_PRS_SRAM_LU_DONE_BIT 110
+#define MVPP2_PRS_SRAM_LU_GEN_BIT 111
+
+/* Sram result info bits assignment */
+#define MVPP2_PRS_RI_MAC_ME_MASK 0x1
+#define MVPP2_PRS_RI_DSA_MASK 0x2
+#define MVPP2_PRS_RI_VLAN_MASK 0xc
+#define MVPP2_PRS_RI_VLAN_NONE ~(BIT(2) | BIT(3))
+#define MVPP2_PRS_RI_VLAN_SINGLE BIT(2)
+#define MVPP2_PRS_RI_VLAN_DOUBLE BIT(3)
+#define MVPP2_PRS_RI_VLAN_TRIPLE (BIT(2) | BIT(3))
+#define MVPP2_PRS_RI_CPU_CODE_MASK 0x70
+#define MVPP2_PRS_RI_CPU_CODE_RX_SPEC BIT(4)
+#define MVPP2_PRS_RI_L2_CAST_MASK 0x600
+#define MVPP2_PRS_RI_L2_UCAST ~(BIT(9) | BIT(10))
+#define MVPP2_PRS_RI_L2_MCAST BIT(9)
+#define MVPP2_PRS_RI_L2_BCAST BIT(10)
+#define MVPP2_PRS_RI_PPPOE_MASK 0x800
+#define MVPP2_PRS_RI_L3_PROTO_MASK 0x7000
+#define MVPP2_PRS_RI_L3_UN ~(BIT(12) | BIT(13) | BIT(14))
+#define MVPP2_PRS_RI_L3_IP4 BIT(12)
+#define MVPP2_PRS_RI_L3_IP4_OPT BIT(13)
+#define MVPP2_PRS_RI_L3_IP4_OTHER (BIT(12) | BIT(13))
+#define MVPP2_PRS_RI_L3_IP6 BIT(14)
+#define MVPP2_PRS_RI_L3_IP6_EXT (BIT(12) | BIT(14))
+#define MVPP2_PRS_RI_L3_ARP (BIT(13) | BIT(14))
+#define MVPP2_PRS_RI_L3_ADDR_MASK 0x18000
+#define MVPP2_PRS_RI_L3_UCAST ~(BIT(15) | BIT(16))
+#define MVPP2_PRS_RI_L3_MCAST BIT(15)
+#define MVPP2_PRS_RI_L3_BCAST (BIT(15) | BIT(16))
+#define MVPP2_PRS_RI_IP_FRAG_MASK 0x20000
+#define MVPP2_PRS_RI_UDF3_MASK 0x300000
+#define MVPP2_PRS_RI_UDF3_RX_SPECIAL BIT(21)
+#define MVPP2_PRS_RI_L4_PROTO_MASK 0x1c00000
+#define MVPP2_PRS_RI_L4_TCP BIT(22)
+#define MVPP2_PRS_RI_L4_UDP BIT(23)
+#define MVPP2_PRS_RI_L4_OTHER (BIT(22) | BIT(23))
+#define MVPP2_PRS_RI_UDF7_MASK 0x60000000
+#define MVPP2_PRS_RI_UDF7_IP6_LITE BIT(29)
+#define MVPP2_PRS_RI_DROP_MASK 0x80000000
+
+/* Sram additional info bits assignment */
+#define MVPP2_PRS_IPV4_DIP_AI_BIT BIT(0)
+#define MVPP2_PRS_IPV6_NO_EXT_AI_BIT BIT(0)
+#define MVPP2_PRS_IPV6_EXT_AI_BIT BIT(1)
+#define MVPP2_PRS_IPV6_EXT_AH_AI_BIT BIT(2)
+#define MVPP2_PRS_IPV6_EXT_AH_LEN_AI_BIT BIT(3)
+#define MVPP2_PRS_IPV6_EXT_AH_L4_AI_BIT BIT(4)
+#define MVPP2_PRS_SINGLE_VLAN_AI 0
+#define MVPP2_PRS_DBL_VLAN_AI_BIT BIT(7)
+
+/* DSA/EDSA type */
+#define MVPP2_PRS_TAGGED true
+#define MVPP2_PRS_UNTAGGED false
+#define MVPP2_PRS_EDSA true
+#define MVPP2_PRS_DSA false
+
+/* MAC entries, shadow udf */
+enum mvpp2_prs_udf {
+ MVPP2_PRS_UDF_MAC_DEF,
+ MVPP2_PRS_UDF_MAC_RANGE,
+ MVPP2_PRS_UDF_L2_DEF,
+ MVPP2_PRS_UDF_L2_DEF_COPY,
+ MVPP2_PRS_UDF_L2_USER,
+};
+
+/* Lookup ID */
+enum mvpp2_prs_lookup {
+ MVPP2_PRS_LU_MH,
+ MVPP2_PRS_LU_MAC,
+ MVPP2_PRS_LU_DSA,
+ MVPP2_PRS_LU_VLAN,
+ MVPP2_PRS_LU_L2,
+ MVPP2_PRS_LU_PPPOE,
+ MVPP2_PRS_LU_IP4,
+ MVPP2_PRS_LU_IP6,
+ MVPP2_PRS_LU_FLOWS,
+ MVPP2_PRS_LU_LAST,
+};
+
+/* L3 cast enum */
+enum mvpp2_prs_l3_cast {
+ MVPP2_PRS_L3_UNI_CAST,
+ MVPP2_PRS_L3_MULTI_CAST,
+ MVPP2_PRS_L3_BROAD_CAST
+};
+
+/* Classifier constants */
+#define MVPP2_CLS_FLOWS_TBL_SIZE 512
+#define MVPP2_CLS_FLOWS_TBL_DATA_WORDS 3
+#define MVPP2_CLS_LKP_TBL_SIZE 64
+
+/* BM constants */
+#define MVPP2_BM_POOLS_NUM 8
+#define MVPP2_BM_LONG_BUF_NUM 1024
+#define MVPP2_BM_SHORT_BUF_NUM 2048
+#define MVPP2_BM_POOL_SIZE_MAX (16*1024 - MVPP2_BM_POOL_PTR_ALIGN/4)
+#define MVPP2_BM_POOL_PTR_ALIGN 128
+#define MVPP2_BM_SWF_LONG_POOL(port) ((port > 2) ? 2 : port)
+#define MVPP2_BM_SWF_SHORT_POOL 3
+
+/* BM cookie (32 bits) definition */
+#define MVPP2_BM_COOKIE_POOL_OFFS 8
+#define MVPP2_BM_COOKIE_CPU_OFFS 24
+
+/* BM short pool packet size
+ * These value assure that for SWF the total number
+ * of bytes allocated for each buffer will be 512
+ */
+#define MVPP2_BM_SHORT_PKT_SIZE MVPP2_RX_MAX_PKT_SIZE(512)
+
+enum mvpp2_bm_type {
+ MVPP2_BM_FREE,
+ MVPP2_BM_SWF_LONG,
+ MVPP2_BM_SWF_SHORT
+};
+
+/* Definitions */
+
+/* Shared Packet Processor resources */
+struct mvpp2 {
+ /* Shared registers' base addresses */
+ void __iomem *base;
+ void __iomem *lms_base;
+
+ /* Common clocks */
+ struct clk *pp_clk;
+ struct clk *gop_clk;
+
+ /* List of pointers to port structures */
+ struct mvpp2_port **port_list;
+
+ /* Aggregated TXQs */
+ struct mvpp2_tx_queue *aggr_txqs;
+
+ /* BM pools */
+ struct mvpp2_bm_pool *bm_pools;
+
+ /* PRS shadow table */
+ struct mvpp2_prs_shadow *prs_shadow;
+ /* PRS auxiliary table for double vlan entries control */
+ bool *prs_double_vlans;
+
+ /* Tclk value */
+ u32 tclk;
+};
+
+struct mvpp2_pcpu_stats {
+ struct u64_stats_sync syncp;
+ u64 rx_packets;
+ u64 rx_bytes;
+ u64 tx_packets;
+ u64 tx_bytes;
+};
+
+struct mvpp2_port {
+ u8 id;
+
+ int irq;
+
+ struct mvpp2 *priv;
+
+ /* Per-port registers' base address */
+ void __iomem *base;
+
+ struct mvpp2_rx_queue **rxqs;
+ struct mvpp2_tx_queue **txqs;
+ struct net_device *dev;
+
+ int pkt_size;
+
+ u32 pending_cause_rx;
+ struct napi_struct napi;
+
+ /* Flags */
+ unsigned long flags;
+
+ u16 tx_ring_size;
+ u16 rx_ring_size;
+ struct mvpp2_pcpu_stats __percpu *stats;
+
+ struct phy_device *phy_dev;
+ phy_interface_t phy_interface;
+ struct device_node *phy_node;
+ unsigned int link;
+ unsigned int duplex;
+ unsigned int speed;
+
+ struct mvpp2_bm_pool *pool_long;
+ struct mvpp2_bm_pool *pool_short;
+
+ /* Index of first port's physical RXQ */
+ u8 first_rxq;
+};
+
+/* The mvpp2_tx_desc and mvpp2_rx_desc structures describe the
+ * layout of the transmit and reception DMA descriptors, and their
+ * layout is therefore defined by the hardware design
+ */
+
+#define MVPP2_TXD_L3_OFF_SHIFT 0
+#define MVPP2_TXD_IP_HLEN_SHIFT 8
+#define MVPP2_TXD_L4_CSUM_FRAG BIT(13)
+#define MVPP2_TXD_L4_CSUM_NOT BIT(14)
+#define MVPP2_TXD_IP_CSUM_DISABLE BIT(15)
+#define MVPP2_TXD_PADDING_DISABLE BIT(23)
+#define MVPP2_TXD_L4_UDP BIT(24)
+#define MVPP2_TXD_L3_IP6 BIT(26)
+#define MVPP2_TXD_L_DESC BIT(28)
+#define MVPP2_TXD_F_DESC BIT(29)
+
+#define MVPP2_RXD_ERR_SUMMARY BIT(15)
+#define MVPP2_RXD_ERR_CODE_MASK (BIT(13) | BIT(14))
+#define MVPP2_RXD_ERR_CRC 0x0
+#define MVPP2_RXD_ERR_OVERRUN BIT(13)
+#define MVPP2_RXD_ERR_RESOURCE (BIT(13) | BIT(14))
+#define MVPP2_RXD_BM_POOL_ID_OFFS 16
+#define MVPP2_RXD_BM_POOL_ID_MASK (BIT(16) | BIT(17) | BIT(18))
+#define MVPP2_RXD_HWF_SYNC BIT(21)
+#define MVPP2_RXD_L4_CSUM_OK BIT(22)
+#define MVPP2_RXD_IP4_HEADER_ERR BIT(24)
+#define MVPP2_RXD_L4_TCP BIT(25)
+#define MVPP2_RXD_L4_UDP BIT(26)
+#define MVPP2_RXD_L3_IP4 BIT(28)
+#define MVPP2_RXD_L3_IP6 BIT(30)
+#define MVPP2_RXD_BUF_HDR BIT(31)
+
+struct mvpp2_tx_desc {
+ u32 command; /* Options used by HW for packet transmitting.*/
+ u8 packet_offset; /* the offset from the buffer beginning */
+ u8 phys_txq; /* destination queue ID */
+ u16 data_size; /* data size of transmitted packet in bytes */
+ u32 buf_phys_addr; /* physical addr of transmitted buffer */
+ u32 buf_cookie; /* cookie for access to TX buffer in tx path */
+ u32 reserved1[3]; /* hw_cmd (for future use, BM, PON, PNC) */
+ u32 reserved2; /* reserved (for future use) */
+};
+
+struct mvpp2_rx_desc {
+ u32 status; /* info about received packet */
+ u16 reserved1; /* parser_info (for future use, PnC) */
+ u16 data_size; /* size of received packet in bytes */
+ u32 buf_phys_addr; /* physical address of the buffer */
+ u32 buf_cookie; /* cookie for access to RX buffer in rx path */
+ u16 reserved2; /* gem_port_id (for future use, PON) */
+ u16 reserved3; /* csum_l4 (for future use, PnC) */
+ u8 reserved4; /* bm_qset (for future use, BM) */
+ u8 reserved5;
+ u16 reserved6; /* classify_info (for future use, PnC) */
+ u32 reserved7; /* flow_id (for future use, PnC) */
+ u32 reserved8;
+};
+
+/* Per-CPU Tx queue control */
+struct mvpp2_txq_pcpu {
+ int cpu;
+
+ /* Number of Tx DMA descriptors in the descriptor ring */
+ int size;
+
+ /* Number of currently used Tx DMA descriptor in the
+ * descriptor ring
+ */
+ int count;
+
+ /* Number of Tx DMA descriptors reserved for each CPU */
+ int reserved_num;
+
+ /* Array of transmitted skb */
+ struct sk_buff **tx_skb;
+
+ /* Index of last TX DMA descriptor that was inserted */
+ int txq_put_index;
+
+ /* Index of the TX DMA descriptor to be cleaned up */
+ int txq_get_index;
+};
+
+struct mvpp2_tx_queue {
+ /* Physical number of this Tx queue */
+ u8 id;
+
+ /* Logical number of this Tx queue */
+ u8 log_id;
+
+ /* Number of Tx DMA descriptors in the descriptor ring */
+ int size;
+
+ /* Number of currently used Tx DMA descriptor in the descriptor ring */
+ int count;
+
+ /* Per-CPU control of physical Tx queues */
+ struct mvpp2_txq_pcpu __percpu *pcpu;
+
+ /* Array of transmitted skb */
+ struct sk_buff **tx_skb;
+
+ u32 done_pkts_coal;
+
+ /* Virtual address of thex Tx DMA descriptors array */
+ struct mvpp2_tx_desc *descs;
+
+ /* DMA address of the Tx DMA descriptors array */
+ dma_addr_t descs_phys;
+
+ /* Index of the last Tx DMA descriptor */
+ int last_desc;
+
+ /* Index of the next Tx DMA descriptor to process */
+ int next_desc_to_proc;
+};
+
+struct mvpp2_rx_queue {
+ /* RX queue number, in the range 0-31 for physical RXQs */
+ u8 id;
+
+ /* Num of rx descriptors in the rx descriptor ring */
+ int size;
+
+ u32 pkts_coal;
+ u32 time_coal;
+
+ /* Virtual address of the RX DMA descriptors array */
+ struct mvpp2_rx_desc *descs;
+
+ /* DMA address of the RX DMA descriptors array */
+ dma_addr_t descs_phys;
+
+ /* Index of the last RX DMA descriptor */
+ int last_desc;
+
+ /* Index of the next RX DMA descriptor to process */
+ int next_desc_to_proc;
+
+ /* ID of port to which physical RXQ is mapped */
+ int port;
+
+ /* Port's logic RXQ number to which physical RXQ is mapped */
+ int logic_rxq;
+};
+
+union mvpp2_prs_tcam_entry {
+ u32 word[MVPP2_PRS_TCAM_WORDS];
+ u8 byte[MVPP2_PRS_TCAM_WORDS * 4];
+};
+
+union mvpp2_prs_sram_entry {
+ u32 word[MVPP2_PRS_SRAM_WORDS];
+ u8 byte[MVPP2_PRS_SRAM_WORDS * 4];
+};
+
+struct mvpp2_prs_entry {
+ u32 index;
+ union mvpp2_prs_tcam_entry tcam;
+ union mvpp2_prs_sram_entry sram;
+};
+
+struct mvpp2_prs_shadow {
+ bool valid;
+ bool finish;
+
+ /* Lookup ID */
+ int lu;
+
+ /* User defined offset */
+ int udf;
+
+ /* Result info */
+ u32 ri;
+ u32 ri_mask;
+};
+
+struct mvpp2_cls_flow_entry {
+ u32 index;
+ u32 data[MVPP2_CLS_FLOWS_TBL_DATA_WORDS];
+};
+
+struct mvpp2_cls_lookup_entry {
+ u32 lkpid;
+ u32 way;
+ u32 data;
+};
+
+struct mvpp2_bm_pool {
+ /* Pool number in the range 0-7 */
+ int id;
+ enum mvpp2_bm_type type;
+
+ /* Buffer Pointers Pool External (BPPE) size */
+ int size;
+ /* Number of buffers for this pool */
+ int buf_num;
+ /* Pool buffer size */
+ int buf_size;
+ /* Packet size */
+ int pkt_size;
+
+ /* BPPE virtual base address */
+ u32 *virt_addr;
+ /* BPPE physical base address */
+ dma_addr_t phys_addr;
+
+ /* Ports using BM pool */
+ u32 port_map;
+
+ /* Occupied buffers indicator */
+ atomic_t in_use;
+ int in_use_thresh;
+
+ spinlock_t lock;
+};
+
+struct mvpp2_buff_hdr {
+ u32 next_buff_phys_addr;
+ u32 next_buff_virt_addr;
+ u16 byte_count;
+ u16 info;
+ u8 reserved1; /* bm_qset (for future use, BM) */
+};
+
+/* Buffer header info bits */
+#define MVPP2_B_HDR_INFO_MC_ID_MASK 0xfff
+#define MVPP2_B_HDR_INFO_MC_ID(info) ((info) & MVPP2_B_HDR_INFO_MC_ID_MASK)
+#define MVPP2_B_HDR_INFO_LAST_OFFS 12
+#define MVPP2_B_HDR_INFO_LAST_MASK BIT(12)
+#define MVPP2_B_HDR_INFO_IS_LAST(info) \
+ ((info & MVPP2_B_HDR_INFO_LAST_MASK) >> MVPP2_B_HDR_INFO_LAST_OFFS)
+
+/* Static declaractions */
+
+/* Number of RXQs used by single port */
+static int rxq_number = MVPP2_DEFAULT_RXQ;
+/* Number of TXQs used by single port */
+static int txq_number = MVPP2_MAX_TXQ;
+
+#define MVPP2_DRIVER_NAME "mvpp2"
+#define MVPP2_DRIVER_VERSION "1.0"
+
+/* Utility/helper methods */
+
+static void mvpp2_write(struct mvpp2 *priv, u32 offset, u32 data)
+{
+ writel(data, priv->base + offset);
+}
+
+static u32 mvpp2_read(struct mvpp2 *priv, u32 offset)
+{
+ return readl(priv->base + offset);
+}
+
+static void mvpp2_txq_inc_get(struct mvpp2_txq_pcpu *txq_pcpu)
+{
+ txq_pcpu->txq_get_index++;
+ if (txq_pcpu->txq_get_index == txq_pcpu->size)
+ txq_pcpu->txq_get_index = 0;
+}
+
+static void mvpp2_txq_inc_put(struct mvpp2_txq_pcpu *txq_pcpu,
+ struct sk_buff *skb)
+{
+ txq_pcpu->tx_skb[txq_pcpu->txq_put_index] = skb;
+ txq_pcpu->txq_put_index++;
+ if (txq_pcpu->txq_put_index == txq_pcpu->size)
+ txq_pcpu->txq_put_index = 0;
+}
+
+/* Get number of physical egress port */
+static inline int mvpp2_egress_port(struct mvpp2_port *port)
+{
+ return MVPP2_MAX_TCONT + port->id;
+}
+
+/* Get number of physical TXQ */
+static inline int mvpp2_txq_phys(int port, int txq)
+{
+ return (MVPP2_MAX_TCONT + port) * MVPP2_MAX_TXQ + txq;
+}
+
+/* Parser configuration routines */
+
+/* Update parser tcam and sram hw entries */
+static int mvpp2_prs_hw_write(struct mvpp2 *priv, struct mvpp2_prs_entry *pe)
+{
+ int i;
+
+ if (pe->index > MVPP2_PRS_TCAM_SRAM_SIZE - 1)
+ return -EINVAL;
+
+ /* Clear entry invalidation bit */
+ pe->tcam.word[MVPP2_PRS_TCAM_INV_WORD] &= ~MVPP2_PRS_TCAM_INV_MASK;
+
+ /* Write tcam index - indirect access */
+ mvpp2_write(priv, MVPP2_PRS_TCAM_IDX_REG, pe->index);
+ for (i = 0; i < MVPP2_PRS_TCAM_WORDS; i++)
+ mvpp2_write(priv, MVPP2_PRS_TCAM_DATA_REG(i), pe->tcam.word[i]);
+
+ /* Write sram index - indirect access */
+ mvpp2_write(priv, MVPP2_PRS_SRAM_IDX_REG, pe->index);
+ for (i = 0; i < MVPP2_PRS_SRAM_WORDS; i++)
+ mvpp2_write(priv, MVPP2_PRS_SRAM_DATA_REG(i), pe->sram.word[i]);
+
+ return 0;
+}
+
+/* Read tcam entry from hw */
+static int mvpp2_prs_hw_read(struct mvpp2 *priv, struct mvpp2_prs_entry *pe)
+{
+ int i;
+
+ if (pe->index > MVPP2_PRS_TCAM_SRAM_SIZE - 1)
+ return -EINVAL;
+
+ /* Write tcam index - indirect access */
+ mvpp2_write(priv, MVPP2_PRS_TCAM_IDX_REG, pe->index);
+
+ pe->tcam.word[MVPP2_PRS_TCAM_INV_WORD] = mvpp2_read(priv,
+ MVPP2_PRS_TCAM_DATA_REG(MVPP2_PRS_TCAM_INV_WORD));
+ if (pe->tcam.word[MVPP2_PRS_TCAM_INV_WORD] & MVPP2_PRS_TCAM_INV_MASK)
+ return MVPP2_PRS_TCAM_ENTRY_INVALID;
+
+ for (i = 0; i < MVPP2_PRS_TCAM_WORDS; i++)
+ pe->tcam.word[i] = mvpp2_read(priv, MVPP2_PRS_TCAM_DATA_REG(i));
+
+ /* Write sram index - indirect access */
+ mvpp2_write(priv, MVPP2_PRS_SRAM_IDX_REG, pe->index);
+ for (i = 0; i < MVPP2_PRS_SRAM_WORDS; i++)
+ pe->sram.word[i] = mvpp2_read(priv, MVPP2_PRS_SRAM_DATA_REG(i));
+
+ return 0;
+}
+
+/* Invalidate tcam hw entry */
+static void mvpp2_prs_hw_inv(struct mvpp2 *priv, int index)
+{
+ /* Write index - indirect access */
+ mvpp2_write(priv, MVPP2_PRS_TCAM_IDX_REG, index);
+ mvpp2_write(priv, MVPP2_PRS_TCAM_DATA_REG(MVPP2_PRS_TCAM_INV_WORD),
+ MVPP2_PRS_TCAM_INV_MASK);
+}
+
+/* Enable shadow table entry and set its lookup ID */
+static void mvpp2_prs_shadow_set(struct mvpp2 *priv, int index, int lu)
+{
+ priv->prs_shadow[index].valid = true;
+ priv->prs_shadow[index].lu = lu;
+}
+
+/* Update ri fields in shadow table entry */
+static void mvpp2_prs_shadow_ri_set(struct mvpp2 *priv, int index,
+ unsigned int ri, unsigned int ri_mask)
+{
+ priv->prs_shadow[index].ri_mask = ri_mask;
+ priv->prs_shadow[index].ri = ri;
+}
+
+/* Update lookup field in tcam sw entry */
+static void mvpp2_prs_tcam_lu_set(struct mvpp2_prs_entry *pe, unsigned int lu)
+{
+ int enable_off = MVPP2_PRS_TCAM_EN_OFFS(MVPP2_PRS_TCAM_LU_BYTE);
+
+ pe->tcam.byte[MVPP2_PRS_TCAM_LU_BYTE] = lu;
+ pe->tcam.byte[enable_off] = MVPP2_PRS_LU_MASK;
+}
+
+/* Update mask for single port in tcam sw entry */
+static void mvpp2_prs_tcam_port_set(struct mvpp2_prs_entry *pe,
+ unsigned int port, bool add)
+{
+ int enable_off = MVPP2_PRS_TCAM_EN_OFFS(MVPP2_PRS_TCAM_PORT_BYTE);
+
+ if (add)
+ pe->tcam.byte[enable_off] &= ~(1 << port);
+ else
+ pe->tcam.byte[enable_off] |= 1 << port;
+}
+
+/* Update port map in tcam sw entry */
+static void mvpp2_prs_tcam_port_map_set(struct mvpp2_prs_entry *pe,
+ unsigned int ports)
+{
+ unsigned char port_mask = MVPP2_PRS_PORT_MASK;
+ int enable_off = MVPP2_PRS_TCAM_EN_OFFS(MVPP2_PRS_TCAM_PORT_BYTE);
+
+ pe->tcam.byte[MVPP2_PRS_TCAM_PORT_BYTE] = 0;
+ pe->tcam.byte[enable_off] &= ~port_mask;
+ pe->tcam.byte[enable_off] |= ~ports & MVPP2_PRS_PORT_MASK;
+}
+
+/* Obtain port map from tcam sw entry */
+static unsigned int mvpp2_prs_tcam_port_map_get(struct mvpp2_prs_entry *pe)
+{
+ int enable_off = MVPP2_PRS_TCAM_EN_OFFS(MVPP2_PRS_TCAM_PORT_BYTE);
+
+ return ~(pe->tcam.byte[enable_off]) & MVPP2_PRS_PORT_MASK;
+}
+
+/* Set byte of data and its enable bits in tcam sw entry */
+static void mvpp2_prs_tcam_data_byte_set(struct mvpp2_prs_entry *pe,
+ unsigned int offs, unsigned char byte,
+ unsigned char enable)
+{
+ pe->tcam.byte[MVPP2_PRS_TCAM_DATA_BYTE(offs)] = byte;
+ pe->tcam.byte[MVPP2_PRS_TCAM_DATA_BYTE_EN(offs)] = enable;
+}
+
+/* Get byte of data and its enable bits from tcam sw entry */
+static void mvpp2_prs_tcam_data_byte_get(struct mvpp2_prs_entry *pe,
+ unsigned int offs, unsigned char *byte,
+ unsigned char *enable)
+{
+ *byte = pe->tcam.byte[MVPP2_PRS_TCAM_DATA_BYTE(offs)];
+ *enable = pe->tcam.byte[MVPP2_PRS_TCAM_DATA_BYTE_EN(offs)];
+}
+
+/* Compare tcam data bytes with a pattern */
+static bool mvpp2_prs_tcam_data_cmp(struct mvpp2_prs_entry *pe, int offs,
+ u16 data)
+{
+ int off = MVPP2_PRS_TCAM_DATA_BYTE(offs);
+ u16 tcam_data;
+
+ tcam_data = (8 << pe->tcam.byte[off + 1]) | pe->tcam.byte[off];
+ if (tcam_data != data)
+ return false;
+ return true;
+}
+
+/* Update ai bits in tcam sw entry */
+static void mvpp2_prs_tcam_ai_update(struct mvpp2_prs_entry *pe,
+ unsigned int bits, unsigned int enable)
+{
+ int i, ai_idx = MVPP2_PRS_TCAM_AI_BYTE;
+
+ for (i = 0; i < MVPP2_PRS_AI_BITS; i++) {
+
+ if (!(enable & BIT(i)))
+ continue;
+
+ if (bits & BIT(i))
+ pe->tcam.byte[ai_idx] |= 1 << i;
+ else
+ pe->tcam.byte[ai_idx] &= ~(1 << i);
+ }
+
+ pe->tcam.byte[MVPP2_PRS_TCAM_EN_OFFS(ai_idx)] |= enable;
+}
+
+/* Get ai bits from tcam sw entry */
+static int mvpp2_prs_tcam_ai_get(struct mvpp2_prs_entry *pe)
+{
+ return pe->tcam.byte[MVPP2_PRS_TCAM_AI_BYTE];
+}
+
+/* Set ethertype in tcam sw entry */
+static void mvpp2_prs_match_etype(struct mvpp2_prs_entry *pe, int offset,
+ unsigned short ethertype)
+{
+ mvpp2_prs_tcam_data_byte_set(pe, offset + 0, ethertype >> 8, 0xff);
+ mvpp2_prs_tcam_data_byte_set(pe, offset + 1, ethertype & 0xff, 0xff);
+}
+
+/* Set bits in sram sw entry */
+static void mvpp2_prs_sram_bits_set(struct mvpp2_prs_entry *pe, int bit_num,
+ int val)
+{
+ pe->sram.byte[MVPP2_BIT_TO_BYTE(bit_num)] |= (val << (bit_num % 8));
+}
+
+/* Clear bits in sram sw entry */
+static void mvpp2_prs_sram_bits_clear(struct mvpp2_prs_entry *pe, int bit_num,
+ int val)
+{
+ pe->sram.byte[MVPP2_BIT_TO_BYTE(bit_num)] &= ~(val << (bit_num % 8));
+}
+
+/* Update ri bits in sram sw entry */
+static void mvpp2_prs_sram_ri_update(struct mvpp2_prs_entry *pe,
+ unsigned int bits, unsigned int mask)
+{
+ unsigned int i;
+
+ for (i = 0; i < MVPP2_PRS_SRAM_RI_CTRL_BITS; i++) {
+ int ri_off = MVPP2_PRS_SRAM_RI_OFFS;
+
+ if (!(mask & BIT(i)))
+ continue;
+
+ if (bits & BIT(i))
+ mvpp2_prs_sram_bits_set(pe, ri_off + i, 1);
+ else
+ mvpp2_prs_sram_bits_clear(pe, ri_off + i, 1);
+
+ mvpp2_prs_sram_bits_set(pe, MVPP2_PRS_SRAM_RI_CTRL_OFFS + i, 1);
+ }
+}
+
+/* Obtain ri bits from sram sw entry */
+static int mvpp2_prs_sram_ri_get(struct mvpp2_prs_entry *pe)
+{
+ return pe->sram.word[MVPP2_PRS_SRAM_RI_WORD];
+}
+
+/* Update ai bits in sram sw entry */
+static void mvpp2_prs_sram_ai_update(struct mvpp2_prs_entry *pe,
+ unsigned int bits, unsigned int mask)
+{
+ unsigned int i;
+ int ai_off = MVPP2_PRS_SRAM_AI_OFFS;
+
+ for (i = 0; i < MVPP2_PRS_SRAM_AI_CTRL_BITS; i++) {
+
+ if (!(mask & BIT(i)))
+ continue;
+
+ if (bits & BIT(i))
+ mvpp2_prs_sram_bits_set(pe, ai_off + i, 1);
+ else
+ mvpp2_prs_sram_bits_clear(pe, ai_off + i, 1);
+
+ mvpp2_prs_sram_bits_set(pe, MVPP2_PRS_SRAM_AI_CTRL_OFFS + i, 1);
+ }
+}
+
+/* Read ai bits from sram sw entry */
+static int mvpp2_prs_sram_ai_get(struct mvpp2_prs_entry *pe)
+{
+ u8 bits;
+ int ai_off = MVPP2_BIT_TO_BYTE(MVPP2_PRS_SRAM_AI_OFFS);
+ int ai_en_off = ai_off + 1;
+ int ai_shift = MVPP2_PRS_SRAM_AI_OFFS % 8;
+
+ bits = (pe->sram.byte[ai_off] >> ai_shift) |
+ (pe->sram.byte[ai_en_off] << (8 - ai_shift));
+
+ return bits;
+}
+
+/* In sram sw entry set lookup ID field of the tcam key to be used in the next
+ * lookup interation
+ */
+static void mvpp2_prs_sram_next_lu_set(struct mvpp2_prs_entry *pe,
+ unsigned int lu)
+{
+ int sram_next_off = MVPP2_PRS_SRAM_NEXT_LU_OFFS;
+
+ mvpp2_prs_sram_bits_clear(pe, sram_next_off,
+ MVPP2_PRS_SRAM_NEXT_LU_MASK);
+ mvpp2_prs_sram_bits_set(pe, sram_next_off, lu);
+}
+
+/* In the sram sw entry set sign and value of the next lookup offset
+ * and the offset value generated to the classifier
+ */
+static void mvpp2_prs_sram_shift_set(struct mvpp2_prs_entry *pe, int shift,
+ unsigned int op)
+{
+ /* Set sign */
+ if (shift < 0) {
+ mvpp2_prs_sram_bits_set(pe, MVPP2_PRS_SRAM_SHIFT_SIGN_BIT, 1);
+ shift = 0 - shift;
+ } else {
+ mvpp2_prs_sram_bits_clear(pe, MVPP2_PRS_SRAM_SHIFT_SIGN_BIT, 1);
+ }
+
+ /* Set value */
+ pe->sram.byte[MVPP2_BIT_TO_BYTE(MVPP2_PRS_SRAM_SHIFT_OFFS)] =
+ (unsigned char)shift;
+
+ /* Reset and set operation */
+ mvpp2_prs_sram_bits_clear(pe, MVPP2_PRS_SRAM_OP_SEL_SHIFT_OFFS,
+ MVPP2_PRS_SRAM_OP_SEL_SHIFT_MASK);
+ mvpp2_prs_sram_bits_set(pe, MVPP2_PRS_SRAM_OP_SEL_SHIFT_OFFS, op);
+
+ /* Set base offset as current */
+ mvpp2_prs_sram_bits_clear(pe, MVPP2_PRS_SRAM_OP_SEL_BASE_OFFS, 1);
+}
+
+/* In the sram sw entry set sign and value of the user defined offset
+ * generated to the classifier
+ */
+static void mvpp2_prs_sram_offset_set(struct mvpp2_prs_entry *pe,
+ unsigned int type, int offset,
+ unsigned int op)
+{
+ /* Set sign */
+ if (offset < 0) {
+ mvpp2_prs_sram_bits_set(pe, MVPP2_PRS_SRAM_UDF_SIGN_BIT, 1);
+ offset = 0 - offset;
+ } else {
+ mvpp2_prs_sram_bits_clear(pe, MVPP2_PRS_SRAM_UDF_SIGN_BIT, 1);
+ }
+
+ /* Set value */
+ mvpp2_prs_sram_bits_clear(pe, MVPP2_PRS_SRAM_UDF_OFFS,
+ MVPP2_PRS_SRAM_UDF_MASK);
+ mvpp2_prs_sram_bits_set(pe, MVPP2_PRS_SRAM_UDF_OFFS, offset);
+ pe->sram.byte[MVPP2_BIT_TO_BYTE(MVPP2_PRS_SRAM_UDF_OFFS +
+ MVPP2_PRS_SRAM_UDF_BITS)] &=
+ ~(MVPP2_PRS_SRAM_UDF_MASK >> (8 - (MVPP2_PRS_SRAM_UDF_OFFS % 8)));
+ pe->sram.byte[MVPP2_BIT_TO_BYTE(MVPP2_PRS_SRAM_UDF_OFFS +
+ MVPP2_PRS_SRAM_UDF_BITS)] |=
+ (offset >> (8 - (MVPP2_PRS_SRAM_UDF_OFFS % 8)));
+
+ /* Set offset type */
+ mvpp2_prs_sram_bits_clear(pe, MVPP2_PRS_SRAM_UDF_TYPE_OFFS,
+ MVPP2_PRS_SRAM_UDF_TYPE_MASK);
+ mvpp2_prs_sram_bits_set(pe, MVPP2_PRS_SRAM_UDF_TYPE_OFFS, type);
+
+ /* Set offset operation */
+ mvpp2_prs_sram_bits_clear(pe, MVPP2_PRS_SRAM_OP_SEL_UDF_OFFS,
+ MVPP2_PRS_SRAM_OP_SEL_UDF_MASK);
+ mvpp2_prs_sram_bits_set(pe, MVPP2_PRS_SRAM_OP_SEL_UDF_OFFS, op);
+
+ pe->sram.byte[MVPP2_BIT_TO_BYTE(MVPP2_PRS_SRAM_OP_SEL_UDF_OFFS +
+ MVPP2_PRS_SRAM_OP_SEL_UDF_BITS)] &=
+ ~(MVPP2_PRS_SRAM_OP_SEL_UDF_MASK >>
+ (8 - (MVPP2_PRS_SRAM_OP_SEL_UDF_OFFS % 8)));
+
+ pe->sram.byte[MVPP2_BIT_TO_BYTE(MVPP2_PRS_SRAM_OP_SEL_UDF_OFFS +
+ MVPP2_PRS_SRAM_OP_SEL_UDF_BITS)] |=
+ (op >> (8 - (MVPP2_PRS_SRAM_OP_SEL_UDF_OFFS % 8)));
+
+ /* Set base offset as current */
+ mvpp2_prs_sram_bits_clear(pe, MVPP2_PRS_SRAM_OP_SEL_BASE_OFFS, 1);
+}
+
+/* Find parser flow entry */
+static struct mvpp2_prs_entry *mvpp2_prs_flow_find(struct mvpp2 *priv, int flow)
+{
+ struct mvpp2_prs_entry *pe;
+ int tid;
+
+ pe = kzalloc(sizeof(*pe), GFP_KERNEL);
+ if (!pe)
+ return NULL;
+ mvpp2_prs_tcam_lu_set(pe, MVPP2_PRS_LU_FLOWS);
+
+ /* Go through the all entires with MVPP2_PRS_LU_FLOWS */
+ for (tid = MVPP2_PRS_TCAM_SRAM_SIZE - 1; tid >= 0; tid--) {
+ u8 bits;
+
+ if (!priv->prs_shadow[tid].valid ||
+ priv->prs_shadow[tid].lu != MVPP2_PRS_LU_FLOWS)
+ continue;
+
+ pe->index = tid;
+ mvpp2_prs_hw_read(priv, pe);
+ bits = mvpp2_prs_sram_ai_get(pe);
+
+ /* Sram store classification lookup ID in AI bits [5:0] */
+ if ((bits & MVPP2_PRS_FLOW_ID_MASK) == flow)
+ return pe;
+ }
+ kfree(pe);
+
+ return NULL;
+}
+
+/* Return first free tcam index, seeking from start to end */
+static int mvpp2_prs_tcam_first_free(struct mvpp2 *priv, unsigned char start,
+ unsigned char end)
+{
+ int tid;
+
+ if (start > end)
+ swap(start, end);
+
+ if (end >= MVPP2_PRS_TCAM_SRAM_SIZE)
+ end = MVPP2_PRS_TCAM_SRAM_SIZE - 1;
+
+ for (tid = start; tid <= end; tid++) {
+ if (!priv->prs_shadow[tid].valid)
+ return tid;
+ }
+
+ return -EINVAL;
+}
+
+/* Enable/disable dropping all mac da's */
+static void mvpp2_prs_mac_drop_all_set(struct mvpp2 *priv, int port, bool add)
+{
+ struct mvpp2_prs_entry pe;
+
+ if (priv->prs_shadow[MVPP2_PE_DROP_ALL].valid) {
+ /* Entry exist - update port only */
+ pe.index = MVPP2_PE_DROP_ALL;
+ mvpp2_prs_hw_read(priv, &pe);
+ } else {
+ /* Entry doesn't exist - create new */
+ memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
+ mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_MAC);
+ pe.index = MVPP2_PE_DROP_ALL;
+
+ /* Non-promiscuous mode for all ports - DROP unknown packets */
+ mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_DROP_MASK,
+ MVPP2_PRS_RI_DROP_MASK);
+
+ mvpp2_prs_sram_bits_set(&pe, MVPP2_PRS_SRAM_LU_GEN_BIT, 1);
+ mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_FLOWS);
+
+ /* Update shadow table */
+ mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_MAC);
+
+ /* Mask all ports */
+ mvpp2_prs_tcam_port_map_set(&pe, 0);
+ }
+
+ /* Update port mask */
+ mvpp2_prs_tcam_port_set(&pe, port, add);
+
+ mvpp2_prs_hw_write(priv, &pe);
+}
+
+/* Set port to promiscuous mode */
+static void mvpp2_prs_mac_promisc_set(struct mvpp2 *priv, int port, bool add)
+{
+ struct mvpp2_prs_entry pe;
+
+ /* Promiscuous mode - Accept unknown packets */
+
+ if (priv->prs_shadow[MVPP2_PE_MAC_PROMISCUOUS].valid) {
+ /* Entry exist - update port only */
+ pe.index = MVPP2_PE_MAC_PROMISCUOUS;
+ mvpp2_prs_hw_read(priv, &pe);
+ } else {
+ /* Entry doesn't exist - create new */
+ memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
+ mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_MAC);
+ pe.index = MVPP2_PE_MAC_PROMISCUOUS;
+
+ /* Continue - set next lookup */
+ mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_DSA);
+
+ /* Set result info bits */
+ mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_L2_UCAST,
+ MVPP2_PRS_RI_L2_CAST_MASK);
+
+ /* Shift to ethertype */
+ mvpp2_prs_sram_shift_set(&pe, 2 * ETH_ALEN,
+ MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD);
+
+ /* Mask all ports */
+ mvpp2_prs_tcam_port_map_set(&pe, 0);
+
+ /* Update shadow table */
+ mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_MAC);
+ }
+
+ /* Update port mask */
+ mvpp2_prs_tcam_port_set(&pe, port, add);
+
+ mvpp2_prs_hw_write(priv, &pe);
+}
+
+/* Accept multicast */
+static void mvpp2_prs_mac_multi_set(struct mvpp2 *priv, int port, int index,
+ bool add)
+{
+ struct mvpp2_prs_entry pe;
+ unsigned char da_mc;
+
+ /* Ethernet multicast address first byte is
+ * 0x01 for IPv4 and 0x33 for IPv6
+ */
+ da_mc = (index == MVPP2_PE_MAC_MC_ALL) ? 0x01 : 0x33;
+
+ if (priv->prs_shadow[index].valid) {
+ /* Entry exist - update port only */
+ pe.index = index;
+ mvpp2_prs_hw_read(priv, &pe);
+ } else {
+ /* Entry doesn't exist - create new */
+ memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
+ mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_MAC);
+ pe.index = index;
+
+ /* Continue - set next lookup */
+ mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_DSA);
+
+ /* Set result info bits */
+ mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_L2_MCAST,
+ MVPP2_PRS_RI_L2_CAST_MASK);
+
+ /* Update tcam entry data first byte */
+ mvpp2_prs_tcam_data_byte_set(&pe, 0, da_mc, 0xff);
+
+ /* Shift to ethertype */
+ mvpp2_prs_sram_shift_set(&pe, 2 * ETH_ALEN,
+ MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD);
+
+ /* Mask all ports */
+ mvpp2_prs_tcam_port_map_set(&pe, 0);
+
+ /* Update shadow table */
+ mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_MAC);
+ }
+
+ /* Update port mask */
+ mvpp2_prs_tcam_port_set(&pe, port, add);
+
+ mvpp2_prs_hw_write(priv, &pe);
+}
+
+/* Set entry for dsa packets */
+static void mvpp2_prs_dsa_tag_set(struct mvpp2 *priv, int port, bool add,
+ bool tagged, bool extend)
+{
+ struct mvpp2_prs_entry pe;
+ int tid, shift;
+
+ if (extend) {
+ tid = tagged ? MVPP2_PE_EDSA_TAGGED : MVPP2_PE_EDSA_UNTAGGED;
+ shift = 8;
+ } else {
+ tid = tagged ? MVPP2_PE_DSA_TAGGED : MVPP2_PE_DSA_UNTAGGED;
+ shift = 4;
+ }
+
+ if (priv->prs_shadow[tid].valid) {
+ /* Entry exist - update port only */
+ pe.index = tid;
+ mvpp2_prs_hw_read(priv, &pe);
+ } else {
+ /* Entry doesn't exist - create new */
+ memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
+ mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_DSA);
+ pe.index = tid;
+
+ /* Shift 4 bytes if DSA tag or 8 bytes in case of EDSA tag*/
+ mvpp2_prs_sram_shift_set(&pe, shift,
+ MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD);
+
+ /* Update shadow table */
+ mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_DSA);
+
+ if (tagged) {
+ /* Set tagged bit in DSA tag */
+ mvpp2_prs_tcam_data_byte_set(&pe, 0,
+ MVPP2_PRS_TCAM_DSA_TAGGED_BIT,
+ MVPP2_PRS_TCAM_DSA_TAGGED_BIT);
+ /* Clear all ai bits for next iteration */
+ mvpp2_prs_sram_ai_update(&pe, 0,
+ MVPP2_PRS_SRAM_AI_MASK);
+ /* If packet is tagged continue check vlans */
+ mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_VLAN);
+ } else {
+ /* Set result info bits to 'no vlans' */
+ mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_VLAN_NONE,
+ MVPP2_PRS_RI_VLAN_MASK);
+ mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_L2);
+ }
+
+ /* Mask all ports */
+ mvpp2_prs_tcam_port_map_set(&pe, 0);
+ }
+
+ /* Update port mask */
+ mvpp2_prs_tcam_port_set(&pe, port, add);
+
+ mvpp2_prs_hw_write(priv, &pe);
+}
+
+/* Set entry for dsa ethertype */
+static void mvpp2_prs_dsa_tag_ethertype_set(struct mvpp2 *priv, int port,
+ bool add, bool tagged, bool extend)
+{
+ struct mvpp2_prs_entry pe;
+ int tid, shift, port_mask;
+
+ if (extend) {
+ tid = tagged ? MVPP2_PE_ETYPE_EDSA_TAGGED :
+ MVPP2_PE_ETYPE_EDSA_UNTAGGED;
+ port_mask = 0;
+ shift = 8;
+ } else {
+ tid = tagged ? MVPP2_PE_ETYPE_DSA_TAGGED :
+ MVPP2_PE_ETYPE_DSA_UNTAGGED;
+ port_mask = MVPP2_PRS_PORT_MASK;
+ shift = 4;
+ }
+
+ if (priv->prs_shadow[tid].valid) {
+ /* Entry exist - update port only */
+ pe.index = tid;
+ mvpp2_prs_hw_read(priv, &pe);
+ } else {
+ /* Entry doesn't exist - create new */
+ memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
+ mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_DSA);
+ pe.index = tid;
+
+ /* Set ethertype */
+ mvpp2_prs_match_etype(&pe, 0, ETH_P_EDSA);
+ mvpp2_prs_match_etype(&pe, 2, 0);
+
+ mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_DSA_MASK,
+ MVPP2_PRS_RI_DSA_MASK);
+ /* Shift ethertype + 2 byte reserved + tag*/
+ mvpp2_prs_sram_shift_set(&pe, 2 + MVPP2_ETH_TYPE_LEN + shift,
+ MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD);
+
+ /* Update shadow table */
+ mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_DSA);
+
+ if (tagged) {
+ /* Set tagged bit in DSA tag */
+ mvpp2_prs_tcam_data_byte_set(&pe,
+ MVPP2_ETH_TYPE_LEN + 2 + 3,
+ MVPP2_PRS_TCAM_DSA_TAGGED_BIT,
+ MVPP2_PRS_TCAM_DSA_TAGGED_BIT);
+ /* Clear all ai bits for next iteration */
+ mvpp2_prs_sram_ai_update(&pe, 0,
+ MVPP2_PRS_SRAM_AI_MASK);
+ /* If packet is tagged continue check vlans */
+ mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_VLAN);
+ } else {
+ /* Set result info bits to 'no vlans' */
+ mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_VLAN_NONE,
+ MVPP2_PRS_RI_VLAN_MASK);
+ mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_L2);
+ }
+ /* Mask/unmask all ports, depending on dsa type */
+ mvpp2_prs_tcam_port_map_set(&pe, port_mask);
+ }
+
+ /* Update port mask */
+ mvpp2_prs_tcam_port_set(&pe, port, add);
+
+ mvpp2_prs_hw_write(priv, &pe);
+}
+
+/* Search for existing single/triple vlan entry */
+static struct mvpp2_prs_entry *mvpp2_prs_vlan_find(struct mvpp2 *priv,
+ unsigned short tpid, int ai)
+{
+ struct mvpp2_prs_entry *pe;
+ int tid;
+
+ pe = kzalloc(sizeof(*pe), GFP_KERNEL);
+ if (!pe)
+ return NULL;
+ mvpp2_prs_tcam_lu_set(pe, MVPP2_PRS_LU_VLAN);
+
+ /* Go through the all entries with MVPP2_PRS_LU_VLAN */
+ for (tid = MVPP2_PE_FIRST_FREE_TID;
+ tid <= MVPP2_PE_LAST_FREE_TID; tid++) {
+ unsigned int ri_bits, ai_bits;
+ bool match;
+
+ if (!priv->prs_shadow[tid].valid ||
+ priv->prs_shadow[tid].lu != MVPP2_PRS_LU_VLAN)
+ continue;
+
+ pe->index = tid;
+
+ mvpp2_prs_hw_read(priv, pe);
+ match = mvpp2_prs_tcam_data_cmp(pe, 0, swab16(tpid));
+ if (!match)
+ continue;
+
+ /* Get vlan type */
+ ri_bits = mvpp2_prs_sram_ri_get(pe);
+ ri_bits &= MVPP2_PRS_RI_VLAN_MASK;
+
+ /* Get current ai value from tcam */
+ ai_bits = mvpp2_prs_tcam_ai_get(pe);
+ /* Clear double vlan bit */
+ ai_bits &= ~MVPP2_PRS_DBL_VLAN_AI_BIT;
+
+ if (ai != ai_bits)
+ continue;
+
+ if (ri_bits == MVPP2_PRS_RI_VLAN_SINGLE ||
+ ri_bits == MVPP2_PRS_RI_VLAN_TRIPLE)
+ return pe;
+ }
+ kfree(pe);
+
+ return NULL;
+}
+
+/* Add/update single/triple vlan entry */
+static int mvpp2_prs_vlan_add(struct mvpp2 *priv, unsigned short tpid, int ai,
+ unsigned int port_map)
+{
+ struct mvpp2_prs_entry *pe;
+ int tid_aux, tid;
+ int ret = 0;
+
+ pe = mvpp2_prs_vlan_find(priv, tpid, ai);
+
+ if (!pe) {
+ /* Create new tcam entry */
+ tid = mvpp2_prs_tcam_first_free(priv, MVPP2_PE_LAST_FREE_TID,
+ MVPP2_PE_FIRST_FREE_TID);
+ if (tid < 0)
+ return tid;
+
+ pe = kzalloc(sizeof(*pe), GFP_KERNEL);
+ if (!pe)
+ return -ENOMEM;
+
+ /* Get last double vlan tid */
+ for (tid_aux = MVPP2_PE_LAST_FREE_TID;
+ tid_aux >= MVPP2_PE_FIRST_FREE_TID; tid_aux--) {
+ unsigned int ri_bits;
+
+ if (!priv->prs_shadow[tid_aux].valid ||
+ priv->prs_shadow[tid_aux].lu != MVPP2_PRS_LU_VLAN)
+ continue;
+
+ pe->index = tid_aux;
+ mvpp2_prs_hw_read(priv, pe);
+ ri_bits = mvpp2_prs_sram_ri_get(pe);
+ if ((ri_bits & MVPP2_PRS_RI_VLAN_MASK) ==
+ MVPP2_PRS_RI_VLAN_DOUBLE)
+ break;
+ }
+
+ if (tid <= tid_aux) {
+ ret = -EINVAL;
+ goto error;
+ }
+
+ memset(pe, 0 , sizeof(struct mvpp2_prs_entry));
+ mvpp2_prs_tcam_lu_set(pe, MVPP2_PRS_LU_VLAN);
+ pe->index = tid;
+
+ mvpp2_prs_match_etype(pe, 0, tpid);
+
+ mvpp2_prs_sram_next_lu_set(pe, MVPP2_PRS_LU_L2);
+ /* Shift 4 bytes - skip 1 vlan tag */
+ mvpp2_prs_sram_shift_set(pe, MVPP2_VLAN_TAG_LEN,
+ MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD);
+ /* Clear all ai bits for next iteration */
+ mvpp2_prs_sram_ai_update(pe, 0, MVPP2_PRS_SRAM_AI_MASK);
+
+ if (ai == MVPP2_PRS_SINGLE_VLAN_AI) {
+ mvpp2_prs_sram_ri_update(pe, MVPP2_PRS_RI_VLAN_SINGLE,
+ MVPP2_PRS_RI_VLAN_MASK);
+ } else {
+ ai |= MVPP2_PRS_DBL_VLAN_AI_BIT;
+ mvpp2_prs_sram_ri_update(pe, MVPP2_PRS_RI_VLAN_TRIPLE,
+ MVPP2_PRS_RI_VLAN_MASK);
+ }
+ mvpp2_prs_tcam_ai_update(pe, ai, MVPP2_PRS_SRAM_AI_MASK);
+
+ mvpp2_prs_shadow_set(priv, pe->index, MVPP2_PRS_LU_VLAN);
+ }
+ /* Update ports' mask */
+ mvpp2_prs_tcam_port_map_set(pe, port_map);
+
+ mvpp2_prs_hw_write(priv, pe);
+
+error:
+ kfree(pe);
+
+ return ret;
+}
+
+/* Get first free double vlan ai number */
+static int mvpp2_prs_double_vlan_ai_free_get(struct mvpp2 *priv)
+{
+ int i;
+
+ for (i = 1; i < MVPP2_PRS_DBL_VLANS_MAX; i++) {
+ if (!priv->prs_double_vlans[i])
+ return i;
+ }
+
+ return -EINVAL;
+}
+
+/* Search for existing double vlan entry */
+static struct mvpp2_prs_entry *mvpp2_prs_double_vlan_find(struct mvpp2 *priv,
+ unsigned short tpid1,
+ unsigned short tpid2)
+{
+ struct mvpp2_prs_entry *pe;
+ int tid;
+
+ pe = kzalloc(sizeof(*pe), GFP_KERNEL);
+ if (!pe)
+ return NULL;
+ mvpp2_prs_tcam_lu_set(pe, MVPP2_PRS_LU_VLAN);
+
+ /* Go through the all entries with MVPP2_PRS_LU_VLAN */
+ for (tid = MVPP2_PE_FIRST_FREE_TID;
+ tid <= MVPP2_PE_LAST_FREE_TID; tid++) {
+ unsigned int ri_mask;
+ bool match;
+
+ if (!priv->prs_shadow[tid].valid ||
+ priv->prs_shadow[tid].lu != MVPP2_PRS_LU_VLAN)
+ continue;
+
+ pe->index = tid;
+ mvpp2_prs_hw_read(priv, pe);
+
+ match = mvpp2_prs_tcam_data_cmp(pe, 0, swab16(tpid1))
+ && mvpp2_prs_tcam_data_cmp(pe, 4, swab16(tpid2));
+
+ if (!match)
+ continue;
+
+ ri_mask = mvpp2_prs_sram_ri_get(pe) & MVPP2_PRS_RI_VLAN_MASK;
+ if (ri_mask == MVPP2_PRS_RI_VLAN_DOUBLE)
+ return pe;
+ }
+ kfree(pe);
+
+ return NULL;
+}
+
+/* Add or update double vlan entry */
+static int mvpp2_prs_double_vlan_add(struct mvpp2 *priv, unsigned short tpid1,
+ unsigned short tpid2,
+ unsigned int port_map)
+{
+ struct mvpp2_prs_entry *pe;
+ int tid_aux, tid, ai, ret = 0;
+
+ pe = mvpp2_prs_double_vlan_find(priv, tpid1, tpid2);
+
+ if (!pe) {
+ /* Create new tcam entry */
+ tid = mvpp2_prs_tcam_first_free(priv, MVPP2_PE_FIRST_FREE_TID,
+ MVPP2_PE_LAST_FREE_TID);
+ if (tid < 0)
+ return tid;
+
+ pe = kzalloc(sizeof(*pe), GFP_KERNEL);
+ if (!pe)
+ return -ENOMEM;
+
+ /* Set ai value for new double vlan entry */
+ ai = mvpp2_prs_double_vlan_ai_free_get(priv);
+ if (ai < 0) {
+ ret = ai;
+ goto error;
+ }
+
+ /* Get first single/triple vlan tid */
+ for (tid_aux = MVPP2_PE_FIRST_FREE_TID;
+ tid_aux <= MVPP2_PE_LAST_FREE_TID; tid_aux++) {
+ unsigned int ri_bits;
+
+ if (!priv->prs_shadow[tid_aux].valid ||
+ priv->prs_shadow[tid_aux].lu != MVPP2_PRS_LU_VLAN)
+ continue;
+
+ pe->index = tid_aux;
+ mvpp2_prs_hw_read(priv, pe);
+ ri_bits = mvpp2_prs_sram_ri_get(pe);
+ ri_bits &= MVPP2_PRS_RI_VLAN_MASK;
+ if (ri_bits == MVPP2_PRS_RI_VLAN_SINGLE ||
+ ri_bits == MVPP2_PRS_RI_VLAN_TRIPLE)
+ break;
+ }
+
+ if (tid >= tid_aux) {
+ ret = -ERANGE;
+ goto error;
+ }
+
+ memset(pe, 0, sizeof(struct mvpp2_prs_entry));
+ mvpp2_prs_tcam_lu_set(pe, MVPP2_PRS_LU_VLAN);
+ pe->index = tid;
+
+ priv->prs_double_vlans[ai] = true;
+
+ mvpp2_prs_match_etype(pe, 0, tpid1);
+ mvpp2_prs_match_etype(pe, 4, tpid2);
+
+ mvpp2_prs_sram_next_lu_set(pe, MVPP2_PRS_LU_VLAN);
+ /* Shift 8 bytes - skip 2 vlan tags */
+ mvpp2_prs_sram_shift_set(pe, 2 * MVPP2_VLAN_TAG_LEN,
+ MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD);
+ mvpp2_prs_sram_ri_update(pe, MVPP2_PRS_RI_VLAN_DOUBLE,
+ MVPP2_PRS_RI_VLAN_MASK);
+ mvpp2_prs_sram_ai_update(pe, ai | MVPP2_PRS_DBL_VLAN_AI_BIT,
+ MVPP2_PRS_SRAM_AI_MASK);
+
+ mvpp2_prs_shadow_set(priv, pe->index, MVPP2_PRS_LU_VLAN);
+ }
+
+ /* Update ports' mask */
+ mvpp2_prs_tcam_port_map_set(pe, port_map);
+ mvpp2_prs_hw_write(priv, pe);
+
+error:
+ kfree(pe);
+ return ret;
+}
+
+/* IPv4 header parsing for fragmentation and L4 offset */
+static int mvpp2_prs_ip4_proto(struct mvpp2 *priv, unsigned short proto,
+ unsigned int ri, unsigned int ri_mask)
+{
+ struct mvpp2_prs_entry pe;
+ int tid;
+
+ if ((proto != IPPROTO_TCP) && (proto != IPPROTO_UDP) &&
+ (proto != IPPROTO_IGMP))
+ return -EINVAL;
+
+ /* Fragmented packet */
+ tid = mvpp2_prs_tcam_first_free(priv, MVPP2_PE_FIRST_FREE_TID,
+ MVPP2_PE_LAST_FREE_TID);
+ if (tid < 0)
+ return tid;
+
+ memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
+ mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_IP4);
+ pe.index = tid;
+
+ /* Set next lu to IPv4 */
+ mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_IP4);
+ mvpp2_prs_sram_shift_set(&pe, 12, MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD);
+ /* Set L4 offset */
+ mvpp2_prs_sram_offset_set(&pe, MVPP2_PRS_SRAM_UDF_TYPE_L4,
+ sizeof(struct iphdr) - 4,
+ MVPP2_PRS_SRAM_OP_SEL_UDF_ADD);
+ mvpp2_prs_sram_ai_update(&pe, MVPP2_PRS_IPV4_DIP_AI_BIT,
+ MVPP2_PRS_IPV4_DIP_AI_BIT);
+ mvpp2_prs_sram_ri_update(&pe, ri | MVPP2_PRS_RI_IP_FRAG_MASK,
+ ri_mask | MVPP2_PRS_RI_IP_FRAG_MASK);
+
+ mvpp2_prs_tcam_data_byte_set(&pe, 5, proto, MVPP2_PRS_TCAM_PROTO_MASK);
+ mvpp2_prs_tcam_ai_update(&pe, 0, MVPP2_PRS_IPV4_DIP_AI_BIT);
+ /* Unmask all ports */
+ mvpp2_prs_tcam_port_map_set(&pe, MVPP2_PRS_PORT_MASK);
+
+ /* Update shadow table and hw entry */
+ mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_IP4);
+ mvpp2_prs_hw_write(priv, &pe);
+
+ /* Not fragmented packet */
+ tid = mvpp2_prs_tcam_first_free(priv, MVPP2_PE_FIRST_FREE_TID,
+ MVPP2_PE_LAST_FREE_TID);
+ if (tid < 0)
+ return tid;
+
+ pe.index = tid;
+ /* Clear ri before updating */
+ pe.sram.word[MVPP2_PRS_SRAM_RI_WORD] = 0x0;
+ pe.sram.word[MVPP2_PRS_SRAM_RI_CTRL_WORD] = 0x0;
+ mvpp2_prs_sram_ri_update(&pe, ri, ri_mask);
+
+ mvpp2_prs_tcam_data_byte_set(&pe, 2, 0x00, MVPP2_PRS_TCAM_PROTO_MASK_L);
+ mvpp2_prs_tcam_data_byte_set(&pe, 3, 0x00, MVPP2_PRS_TCAM_PROTO_MASK);
+
+ /* Update shadow table and hw entry */
+ mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_IP4);
+ mvpp2_prs_hw_write(priv, &pe);
+
+ return 0;
+}
+
+/* IPv4 L3 multicast or broadcast */
+static int mvpp2_prs_ip4_cast(struct mvpp2 *priv, unsigned short l3_cast)
+{
+ struct mvpp2_prs_entry pe;
+ int mask, tid;
+
+ tid = mvpp2_prs_tcam_first_free(priv, MVPP2_PE_FIRST_FREE_TID,
+ MVPP2_PE_LAST_FREE_TID);
+ if (tid < 0)
+ return tid;
+
+ memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
+ mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_IP4);
+ pe.index = tid;
+
+ switch (l3_cast) {
+ case MVPP2_PRS_L3_MULTI_CAST:
+ mvpp2_prs_tcam_data_byte_set(&pe, 0, MVPP2_PRS_IPV4_MC,
+ MVPP2_PRS_IPV4_MC_MASK);
+ mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_L3_MCAST,
+ MVPP2_PRS_RI_L3_ADDR_MASK);
+ break;
+ case MVPP2_PRS_L3_BROAD_CAST:
+ mask = MVPP2_PRS_IPV4_BC_MASK;
+ mvpp2_prs_tcam_data_byte_set(&pe, 0, mask, mask);
+ mvpp2_prs_tcam_data_byte_set(&pe, 1, mask, mask);
+ mvpp2_prs_tcam_data_byte_set(&pe, 2, mask, mask);
+ mvpp2_prs_tcam_data_byte_set(&pe, 3, mask, mask);
+ mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_L3_BCAST,
+ MVPP2_PRS_RI_L3_ADDR_MASK);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ /* Finished: go to flowid generation */
+ mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_FLOWS);
+ mvpp2_prs_sram_bits_set(&pe, MVPP2_PRS_SRAM_LU_GEN_BIT, 1);
+
+ mvpp2_prs_tcam_ai_update(&pe, MVPP2_PRS_IPV4_DIP_AI_BIT,
+ MVPP2_PRS_IPV4_DIP_AI_BIT);
+ /* Unmask all ports */
+ mvpp2_prs_tcam_port_map_set(&pe, MVPP2_PRS_PORT_MASK);
+
+ /* Update shadow table and hw entry */
+ mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_IP4);
+ mvpp2_prs_hw_write(priv, &pe);
+
+ return 0;
+}
+
+/* Set entries for protocols over IPv6 */
+static int mvpp2_prs_ip6_proto(struct mvpp2 *priv, unsigned short proto,
+ unsigned int ri, unsigned int ri_mask)
+{
+ struct mvpp2_prs_entry pe;
+ int tid;
+
+ if ((proto != IPPROTO_TCP) && (proto != IPPROTO_UDP) &&
+ (proto != IPPROTO_ICMPV6) && (proto != IPPROTO_IPIP))
+ return -EINVAL;
+
+ tid = mvpp2_prs_tcam_first_free(priv, MVPP2_PE_FIRST_FREE_TID,
+ MVPP2_PE_LAST_FREE_TID);
+ if (tid < 0)
+ return tid;
+
+ memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
+ mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_IP6);
+ pe.index = tid;
+
+ /* Finished: go to flowid generation */
+ mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_FLOWS);
+ mvpp2_prs_sram_bits_set(&pe, MVPP2_PRS_SRAM_LU_GEN_BIT, 1);
+ mvpp2_prs_sram_ri_update(&pe, ri, ri_mask);
+ mvpp2_prs_sram_offset_set(&pe, MVPP2_PRS_SRAM_UDF_TYPE_L4,
+ sizeof(struct ipv6hdr) - 6,
+ MVPP2_PRS_SRAM_OP_SEL_UDF_ADD);
+
+ mvpp2_prs_tcam_data_byte_set(&pe, 0, proto, MVPP2_PRS_TCAM_PROTO_MASK);
+ mvpp2_prs_tcam_ai_update(&pe, MVPP2_PRS_IPV6_NO_EXT_AI_BIT,
+ MVPP2_PRS_IPV6_NO_EXT_AI_BIT);
+ /* Unmask all ports */
+ mvpp2_prs_tcam_port_map_set(&pe, MVPP2_PRS_PORT_MASK);
+
+ /* Write HW */
+ mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_IP6);
+ mvpp2_prs_hw_write(priv, &pe);
+
+ return 0;
+}
+
+/* IPv6 L3 multicast entry */
+static int mvpp2_prs_ip6_cast(struct mvpp2 *priv, unsigned short l3_cast)
+{
+ struct mvpp2_prs_entry pe;
+ int tid;
+
+ if (l3_cast != MVPP2_PRS_L3_MULTI_CAST)
+ return -EINVAL;
+
+ tid = mvpp2_prs_tcam_first_free(priv, MVPP2_PE_FIRST_FREE_TID,
+ MVPP2_PE_LAST_FREE_TID);
+ if (tid < 0)
+ return tid;
+
+ memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
+ mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_IP6);
+ pe.index = tid;
+
+ /* Finished: go to flowid generation */
+ mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_IP6);
+ mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_L3_MCAST,
+ MVPP2_PRS_RI_L3_ADDR_MASK);
+ mvpp2_prs_sram_ai_update(&pe, MVPP2_PRS_IPV6_NO_EXT_AI_BIT,
+ MVPP2_PRS_IPV6_NO_EXT_AI_BIT);
+ /* Shift back to IPv6 NH */
+ mvpp2_prs_sram_shift_set(&pe, -18, MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD);
+
+ mvpp2_prs_tcam_data_byte_set(&pe, 0, MVPP2_PRS_IPV6_MC,
+ MVPP2_PRS_IPV6_MC_MASK);
+ mvpp2_prs_tcam_ai_update(&pe, 0, MVPP2_PRS_IPV6_NO_EXT_AI_BIT);
+ /* Unmask all ports */
+ mvpp2_prs_tcam_port_map_set(&pe, MVPP2_PRS_PORT_MASK);
+
+ /* Update shadow table and hw entry */
+ mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_IP6);
+ mvpp2_prs_hw_write(priv, &pe);
+
+ return 0;
+}
+
+/* Parser per-port initialization */
+static void mvpp2_prs_hw_port_init(struct mvpp2 *priv, int port, int lu_first,
+ int lu_max, int offset)
+{
+ u32 val;
+
+ /* Set lookup ID */
+ val = mvpp2_read(priv, MVPP2_PRS_INIT_LOOKUP_REG);
+ val &= ~MVPP2_PRS_PORT_LU_MASK(port);
+ val |= MVPP2_PRS_PORT_LU_VAL(port, lu_first);
+ mvpp2_write(priv, MVPP2_PRS_INIT_LOOKUP_REG, val);
+
+ /* Set maximum number of loops for packet received from port */
+ val = mvpp2_read(priv, MVPP2_PRS_MAX_LOOP_REG(port));
+ val &= ~MVPP2_PRS_MAX_LOOP_MASK(port);
+ val |= MVPP2_PRS_MAX_LOOP_VAL(port, lu_max);
+ mvpp2_write(priv, MVPP2_PRS_MAX_LOOP_REG(port), val);
+
+ /* Set initial offset for packet header extraction for the first
+ * searching loop
+ */
+ val = mvpp2_read(priv, MVPP2_PRS_INIT_OFFS_REG(port));
+ val &= ~MVPP2_PRS_INIT_OFF_MASK(port);
+ val |= MVPP2_PRS_INIT_OFF_VAL(port, offset);
+ mvpp2_write(priv, MVPP2_PRS_INIT_OFFS_REG(port), val);
+}
+
+/* Default flow entries initialization for all ports */
+static void mvpp2_prs_def_flow_init(struct mvpp2 *priv)
+{
+ struct mvpp2_prs_entry pe;
+ int port;
+
+ for (port = 0; port < MVPP2_MAX_PORTS; port++) {
+ memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
+ mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_FLOWS);
+ pe.index = MVPP2_PE_FIRST_DEFAULT_FLOW - port;
+
+ /* Mask all ports */
+ mvpp2_prs_tcam_port_map_set(&pe, 0);
+
+ /* Set flow ID*/
+ mvpp2_prs_sram_ai_update(&pe, port, MVPP2_PRS_FLOW_ID_MASK);
+ mvpp2_prs_sram_bits_set(&pe, MVPP2_PRS_SRAM_LU_DONE_BIT, 1);
+
+ /* Update shadow table and hw entry */
+ mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_FLOWS);
+ mvpp2_prs_hw_write(priv, &pe);
+ }
+}
+
+/* Set default entry for Marvell Header field */
+static void mvpp2_prs_mh_init(struct mvpp2 *priv)
+{
+ struct mvpp2_prs_entry pe;
+
+ memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
+
+ pe.index = MVPP2_PE_MH_DEFAULT;
+ mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_MH);
+ mvpp2_prs_sram_shift_set(&pe, MVPP2_MH_SIZE,
+ MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD);
+ mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_MAC);
+
+ /* Unmask all ports */
+ mvpp2_prs_tcam_port_map_set(&pe, MVPP2_PRS_PORT_MASK);
+
+ /* Update shadow table and hw entry */
+ mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_MH);
+ mvpp2_prs_hw_write(priv, &pe);
+}
+
+/* Set default entires (place holder) for promiscuous, non-promiscuous and
+ * multicast MAC addresses
+ */
+static void mvpp2_prs_mac_init(struct mvpp2 *priv)
+{
+ struct mvpp2_prs_entry pe;
+
+ memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
+
+ /* Non-promiscuous mode for all ports - DROP unknown packets */
+ pe.index = MVPP2_PE_MAC_NON_PROMISCUOUS;
+ mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_MAC);
+
+ mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_DROP_MASK,
+ MVPP2_PRS_RI_DROP_MASK);
+ mvpp2_prs_sram_bits_set(&pe, MVPP2_PRS_SRAM_LU_GEN_BIT, 1);
+ mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_FLOWS);
+
+ /* Unmask all ports */
+ mvpp2_prs_tcam_port_map_set(&pe, MVPP2_PRS_PORT_MASK);
+
+ /* Update shadow table and hw entry */
+ mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_MAC);
+ mvpp2_prs_hw_write(priv, &pe);
+
+ /* place holders only - no ports */
+ mvpp2_prs_mac_drop_all_set(priv, 0, false);
+ mvpp2_prs_mac_promisc_set(priv, 0, false);
+ mvpp2_prs_mac_multi_set(priv, MVPP2_PE_MAC_MC_ALL, 0, false);
+ mvpp2_prs_mac_multi_set(priv, MVPP2_PE_MAC_MC_IP6, 0, false);
+}
+
+/* Set default entries for various types of dsa packets */
+static void mvpp2_prs_dsa_init(struct mvpp2 *priv)
+{
+ struct mvpp2_prs_entry pe;
+
+ /* None tagged EDSA entry - place holder */
+ mvpp2_prs_dsa_tag_set(priv, 0, false, MVPP2_PRS_UNTAGGED,
+ MVPP2_PRS_EDSA);
+
+ /* Tagged EDSA entry - place holder */
+ mvpp2_prs_dsa_tag_set(priv, 0, false, MVPP2_PRS_TAGGED, MVPP2_PRS_EDSA);
+
+ /* None tagged DSA entry - place holder */
+ mvpp2_prs_dsa_tag_set(priv, 0, false, MVPP2_PRS_UNTAGGED,
+ MVPP2_PRS_DSA);
+
+ /* Tagged DSA entry - place holder */
+ mvpp2_prs_dsa_tag_set(priv, 0, false, MVPP2_PRS_TAGGED, MVPP2_PRS_DSA);
+
+ /* None tagged EDSA ethertype entry - place holder*/
+ mvpp2_prs_dsa_tag_ethertype_set(priv, 0, false,
+ MVPP2_PRS_UNTAGGED, MVPP2_PRS_EDSA);
+
+ /* Tagged EDSA ethertype entry - place holder*/
+ mvpp2_prs_dsa_tag_ethertype_set(priv, 0, false,
+ MVPP2_PRS_TAGGED, MVPP2_PRS_EDSA);
+
+ /* None tagged DSA ethertype entry */
+ mvpp2_prs_dsa_tag_ethertype_set(priv, 0, true,
+ MVPP2_PRS_UNTAGGED, MVPP2_PRS_DSA);
+
+ /* Tagged DSA ethertype entry */
+ mvpp2_prs_dsa_tag_ethertype_set(priv, 0, true,
+ MVPP2_PRS_TAGGED, MVPP2_PRS_DSA);
+
+ /* Set default entry, in case DSA or EDSA tag not found */
+ memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
+ mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_DSA);
+ pe.index = MVPP2_PE_DSA_DEFAULT;
+ mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_VLAN);
+
+ /* Shift 0 bytes */
+ mvpp2_prs_sram_shift_set(&pe, 0, MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD);
+ mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_MAC);
+
+ /* Clear all sram ai bits for next iteration */
+ mvpp2_prs_sram_ai_update(&pe, 0, MVPP2_PRS_SRAM_AI_MASK);
+
+ /* Unmask all ports */
+ mvpp2_prs_tcam_port_map_set(&pe, MVPP2_PRS_PORT_MASK);
+
+ mvpp2_prs_hw_write(priv, &pe);
+}
+
+/* Match basic ethertypes */
+static int mvpp2_prs_etype_init(struct mvpp2 *priv)
+{
+ struct mvpp2_prs_entry pe;
+ int tid;
+
+ /* Ethertype: PPPoE */
+ tid = mvpp2_prs_tcam_first_free(priv, MVPP2_PE_FIRST_FREE_TID,
+ MVPP2_PE_LAST_FREE_TID);
+ if (tid < 0)
+ return tid;
+
+ memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
+ mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_L2);
+ pe.index = tid;
+
+ mvpp2_prs_match_etype(&pe, 0, ETH_P_PPP_SES);
+
+ mvpp2_prs_sram_shift_set(&pe, MVPP2_PPPOE_HDR_SIZE,
+ MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD);
+ mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_PPPOE);
+ mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_PPPOE_MASK,
+ MVPP2_PRS_RI_PPPOE_MASK);
+
+ /* Update shadow table and hw entry */
+ mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_L2);
+ priv->prs_shadow[pe.index].udf = MVPP2_PRS_UDF_L2_DEF;
+ priv->prs_shadow[pe.index].finish = false;
+ mvpp2_prs_shadow_ri_set(priv, pe.index, MVPP2_PRS_RI_PPPOE_MASK,
+ MVPP2_PRS_RI_PPPOE_MASK);
+ mvpp2_prs_hw_write(priv, &pe);
+
+ /* Ethertype: ARP */
+ tid = mvpp2_prs_tcam_first_free(priv, MVPP2_PE_FIRST_FREE_TID,
+ MVPP2_PE_LAST_FREE_TID);
+ if (tid < 0)
+ return tid;
+
+ memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
+ mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_L2);
+ pe.index = tid;
+
+ mvpp2_prs_match_etype(&pe, 0, ETH_P_ARP);
+
+ /* Generate flow in the next iteration*/
+ mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_FLOWS);
+ mvpp2_prs_sram_bits_set(&pe, MVPP2_PRS_SRAM_LU_GEN_BIT, 1);
+ mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_L3_ARP,
+ MVPP2_PRS_RI_L3_PROTO_MASK);
+ /* Set L3 offset */
+ mvpp2_prs_sram_offset_set(&pe, MVPP2_PRS_SRAM_UDF_TYPE_L3,
+ MVPP2_ETH_TYPE_LEN,
+ MVPP2_PRS_SRAM_OP_SEL_UDF_ADD);
+
+ /* Update shadow table and hw entry */
+ mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_L2);
+ priv->prs_shadow[pe.index].udf = MVPP2_PRS_UDF_L2_DEF;
+ priv->prs_shadow[pe.index].finish = true;
+ mvpp2_prs_shadow_ri_set(priv, pe.index, MVPP2_PRS_RI_L3_ARP,
+ MVPP2_PRS_RI_L3_PROTO_MASK);
+ mvpp2_prs_hw_write(priv, &pe);
+
+ /* Ethertype: LBTD */
+ tid = mvpp2_prs_tcam_first_free(priv, MVPP2_PE_FIRST_FREE_TID,
+ MVPP2_PE_LAST_FREE_TID);
+ if (tid < 0)
+ return tid;
+
+ memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
+ mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_L2);
+ pe.index = tid;
+
+ mvpp2_prs_match_etype(&pe, 0, MVPP2_IP_LBDT_TYPE);
+
+ /* Generate flow in the next iteration*/
+ mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_FLOWS);
+ mvpp2_prs_sram_bits_set(&pe, MVPP2_PRS_SRAM_LU_GEN_BIT, 1);
+ mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_CPU_CODE_RX_SPEC |
+ MVPP2_PRS_RI_UDF3_RX_SPECIAL,
+ MVPP2_PRS_RI_CPU_CODE_MASK |
+ MVPP2_PRS_RI_UDF3_MASK);
+ /* Set L3 offset */
+ mvpp2_prs_sram_offset_set(&pe, MVPP2_PRS_SRAM_UDF_TYPE_L3,
+ MVPP2_ETH_TYPE_LEN,
+ MVPP2_PRS_SRAM_OP_SEL_UDF_ADD);
+
+ /* Update shadow table and hw entry */
+ mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_L2);
+ priv->prs_shadow[pe.index].udf = MVPP2_PRS_UDF_L2_DEF;
+ priv->prs_shadow[pe.index].finish = true;
+ mvpp2_prs_shadow_ri_set(priv, pe.index, MVPP2_PRS_RI_CPU_CODE_RX_SPEC |
+ MVPP2_PRS_RI_UDF3_RX_SPECIAL,
+ MVPP2_PRS_RI_CPU_CODE_MASK |
+ MVPP2_PRS_RI_UDF3_MASK);
+ mvpp2_prs_hw_write(priv, &pe);
+
+ /* Ethertype: IPv4 without options */
+ tid = mvpp2_prs_tcam_first_free(priv, MVPP2_PE_FIRST_FREE_TID,
+ MVPP2_PE_LAST_FREE_TID);
+ if (tid < 0)
+ return tid;
+
+ memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
+ mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_L2);
+ pe.index = tid;
+
+ mvpp2_prs_match_etype(&pe, 0, ETH_P_IP);
+ mvpp2_prs_tcam_data_byte_set(&pe, MVPP2_ETH_TYPE_LEN,
+ MVPP2_PRS_IPV4_HEAD | MVPP2_PRS_IPV4_IHL,
+ MVPP2_PRS_IPV4_HEAD_MASK |
+ MVPP2_PRS_IPV4_IHL_MASK);
+
+ mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_IP4);
+ mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_L3_IP4,
+ MVPP2_PRS_RI_L3_PROTO_MASK);
+ /* Skip eth_type + 4 bytes of IP header */
+ mvpp2_prs_sram_shift_set(&pe, MVPP2_ETH_TYPE_LEN + 4,
+ MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD);
+ /* Set L3 offset */
+ mvpp2_prs_sram_offset_set(&pe, MVPP2_PRS_SRAM_UDF_TYPE_L3,
+ MVPP2_ETH_TYPE_LEN,
+ MVPP2_PRS_SRAM_OP_SEL_UDF_ADD);
+
+ /* Update shadow table and hw entry */
+ mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_L2);
+ priv->prs_shadow[pe.index].udf = MVPP2_PRS_UDF_L2_DEF;
+ priv->prs_shadow[pe.index].finish = false;
+ mvpp2_prs_shadow_ri_set(priv, pe.index, MVPP2_PRS_RI_L3_IP4,
+ MVPP2_PRS_RI_L3_PROTO_MASK);
+ mvpp2_prs_hw_write(priv, &pe);
+
+ /* Ethertype: IPv4 with options */
+ tid = mvpp2_prs_tcam_first_free(priv, MVPP2_PE_FIRST_FREE_TID,
+ MVPP2_PE_LAST_FREE_TID);
+ if (tid < 0)
+ return tid;
+
+ pe.index = tid;
+
+ /* Clear tcam data before updating */
+ pe.tcam.byte[MVPP2_PRS_TCAM_DATA_BYTE(MVPP2_ETH_TYPE_LEN)] = 0x0;
+ pe.tcam.byte[MVPP2_PRS_TCAM_DATA_BYTE_EN(MVPP2_ETH_TYPE_LEN)] = 0x0;
+
+ mvpp2_prs_tcam_data_byte_set(&pe, MVPP2_ETH_TYPE_LEN,
+ MVPP2_PRS_IPV4_HEAD,
+ MVPP2_PRS_IPV4_HEAD_MASK);
+
+ /* Clear ri before updating */
+ pe.sram.word[MVPP2_PRS_SRAM_RI_WORD] = 0x0;
+ pe.sram.word[MVPP2_PRS_SRAM_RI_CTRL_WORD] = 0x0;
+ mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_L3_IP4_OPT,
+ MVPP2_PRS_RI_L3_PROTO_MASK);
+
+ /* Update shadow table and hw entry */
+ mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_L2);
+ priv->prs_shadow[pe.index].udf = MVPP2_PRS_UDF_L2_DEF;
+ priv->prs_shadow[pe.index].finish = false;
+ mvpp2_prs_shadow_ri_set(priv, pe.index, MVPP2_PRS_RI_L3_IP4_OPT,
+ MVPP2_PRS_RI_L3_PROTO_MASK);
+ mvpp2_prs_hw_write(priv, &pe);
+
+ /* Ethertype: IPv6 without options */
+ tid = mvpp2_prs_tcam_first_free(priv, MVPP2_PE_FIRST_FREE_TID,
+ MVPP2_PE_LAST_FREE_TID);
+ if (tid < 0)
+ return tid;
+
+ memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
+ mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_L2);
+ pe.index = tid;
+
+ mvpp2_prs_match_etype(&pe, 0, ETH_P_IPV6);
+
+ /* Skip DIP of IPV6 header */
+ mvpp2_prs_sram_shift_set(&pe, MVPP2_ETH_TYPE_LEN + 8 +
+ MVPP2_MAX_L3_ADDR_SIZE,
+ MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD);
+ mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_IP6);
+ mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_L3_IP6,
+ MVPP2_PRS_RI_L3_PROTO_MASK);
+ /* Set L3 offset */
+ mvpp2_prs_sram_offset_set(&pe, MVPP2_PRS_SRAM_UDF_TYPE_L3,
+ MVPP2_ETH_TYPE_LEN,
+ MVPP2_PRS_SRAM_OP_SEL_UDF_ADD);
+
+ mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_L2);
+ priv->prs_shadow[pe.index].udf = MVPP2_PRS_UDF_L2_DEF;
+ priv->prs_shadow[pe.index].finish = false;
+ mvpp2_prs_shadow_ri_set(priv, pe.index, MVPP2_PRS_RI_L3_IP6,
+ MVPP2_PRS_RI_L3_PROTO_MASK);
+ mvpp2_prs_hw_write(priv, &pe);
+
+ /* Default entry for MVPP2_PRS_LU_L2 - Unknown ethtype */
+ memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
+ mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_L2);
+ pe.index = MVPP2_PE_ETH_TYPE_UN;
+
+ /* Unmask all ports */
+ mvpp2_prs_tcam_port_map_set(&pe, MVPP2_PRS_PORT_MASK);
+
+ /* Generate flow in the next iteration*/
+ mvpp2_prs_sram_bits_set(&pe, MVPP2_PRS_SRAM_LU_GEN_BIT, 1);
+ mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_FLOWS);
+ mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_L3_UN,
+ MVPP2_PRS_RI_L3_PROTO_MASK);
+ /* Set L3 offset even it's unknown L3 */
+ mvpp2_prs_sram_offset_set(&pe, MVPP2_PRS_SRAM_UDF_TYPE_L3,
+ MVPP2_ETH_TYPE_LEN,
+ MVPP2_PRS_SRAM_OP_SEL_UDF_ADD);
+
+ /* Update shadow table and hw entry */
+ mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_L2);
+ priv->prs_shadow[pe.index].udf = MVPP2_PRS_UDF_L2_DEF;
+ priv->prs_shadow[pe.index].finish = true;
+ mvpp2_prs_shadow_ri_set(priv, pe.index, MVPP2_PRS_RI_L3_UN,
+ MVPP2_PRS_RI_L3_PROTO_MASK);
+ mvpp2_prs_hw_write(priv, &pe);
+
+ return 0;
+}
+
+/* Configure vlan entries and detect up to 2 successive VLAN tags.
+ * Possible options:
+ * 0x8100, 0x88A8
+ * 0x8100, 0x8100
+ * 0x8100
+ * 0x88A8
+ */
+static int mvpp2_prs_vlan_init(struct platform_device *pdev, struct mvpp2 *priv)
+{
+ struct mvpp2_prs_entry pe;
+ int err;
+
+ priv->prs_double_vlans = devm_kcalloc(&pdev->dev, sizeof(bool),
+ MVPP2_PRS_DBL_VLANS_MAX,
+ GFP_KERNEL);
+ if (!priv->prs_double_vlans)
+ return -ENOMEM;
+
+ /* Double VLAN: 0x8100, 0x88A8 */
+ err = mvpp2_prs_double_vlan_add(priv, ETH_P_8021Q, ETH_P_8021AD,
+ MVPP2_PRS_PORT_MASK);
+ if (err)
+ return err;
+
+ /* Double VLAN: 0x8100, 0x8100 */
+ err = mvpp2_prs_double_vlan_add(priv, ETH_P_8021Q, ETH_P_8021Q,
+ MVPP2_PRS_PORT_MASK);
+ if (err)
+ return err;
+
+ /* Single VLAN: 0x88a8 */
+ err = mvpp2_prs_vlan_add(priv, ETH_P_8021AD, MVPP2_PRS_SINGLE_VLAN_AI,
+ MVPP2_PRS_PORT_MASK);
+ if (err)
+ return err;
+
+ /* Single VLAN: 0x8100 */
+ err = mvpp2_prs_vlan_add(priv, ETH_P_8021Q, MVPP2_PRS_SINGLE_VLAN_AI,
+ MVPP2_PRS_PORT_MASK);
+ if (err)
+ return err;
+
+ /* Set default double vlan entry */
+ memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
+ mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_VLAN);
+ pe.index = MVPP2_PE_VLAN_DBL;
+
+ mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_L2);
+ /* Clear ai for next iterations */
+ mvpp2_prs_sram_ai_update(&pe, 0, MVPP2_PRS_SRAM_AI_MASK);
+ mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_VLAN_DOUBLE,
+ MVPP2_PRS_RI_VLAN_MASK);
+
+ mvpp2_prs_tcam_ai_update(&pe, MVPP2_PRS_DBL_VLAN_AI_BIT,
+ MVPP2_PRS_DBL_VLAN_AI_BIT);
+ /* Unmask all ports */
+ mvpp2_prs_tcam_port_map_set(&pe, MVPP2_PRS_PORT_MASK);
+
+ /* Update shadow table and hw entry */
+ mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_VLAN);
+ mvpp2_prs_hw_write(priv, &pe);
+
+ /* Set default vlan none entry */
+ memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
+ mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_VLAN);
+ pe.index = MVPP2_PE_VLAN_NONE;
+
+ mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_L2);
+ mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_VLAN_NONE,
+ MVPP2_PRS_RI_VLAN_MASK);
+
+ /* Unmask all ports */
+ mvpp2_prs_tcam_port_map_set(&pe, MVPP2_PRS_PORT_MASK);
+
+ /* Update shadow table and hw entry */
+ mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_VLAN);
+ mvpp2_prs_hw_write(priv, &pe);
+
+ return 0;
+}
+
+/* Set entries for PPPoE ethertype */
+static int mvpp2_prs_pppoe_init(struct mvpp2 *priv)
+{
+ struct mvpp2_prs_entry pe;
+ int tid;
+
+ /* IPv4 over PPPoE with options */
+ tid = mvpp2_prs_tcam_first_free(priv, MVPP2_PE_FIRST_FREE_TID,
+ MVPP2_PE_LAST_FREE_TID);
+ if (tid < 0)
+ return tid;
+
+ memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
+ mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_PPPOE);
+ pe.index = tid;
+
+ mvpp2_prs_match_etype(&pe, 0, PPP_IP);
+
+ mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_IP4);
+ mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_L3_IP4_OPT,
+ MVPP2_PRS_RI_L3_PROTO_MASK);
+ /* Skip eth_type + 4 bytes of IP header */
+ mvpp2_prs_sram_shift_set(&pe, MVPP2_ETH_TYPE_LEN + 4,
+ MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD);
+ /* Set L3 offset */
+ mvpp2_prs_sram_offset_set(&pe, MVPP2_PRS_SRAM_UDF_TYPE_L3,
+ MVPP2_ETH_TYPE_LEN,
+ MVPP2_PRS_SRAM_OP_SEL_UDF_ADD);
+
+ /* Update shadow table and hw entry */
+ mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_PPPOE);
+ mvpp2_prs_hw_write(priv, &pe);
+
+ /* IPv4 over PPPoE without options */
+ tid = mvpp2_prs_tcam_first_free(priv, MVPP2_PE_FIRST_FREE_TID,
+ MVPP2_PE_LAST_FREE_TID);
+ if (tid < 0)
+ return tid;
+
+ pe.index = tid;
+
+ mvpp2_prs_tcam_data_byte_set(&pe, MVPP2_ETH_TYPE_LEN,
+ MVPP2_PRS_IPV4_HEAD | MVPP2_PRS_IPV4_IHL,
+ MVPP2_PRS_IPV4_HEAD_MASK |
+ MVPP2_PRS_IPV4_IHL_MASK);
+
+ /* Clear ri before updating */
+ pe.sram.word[MVPP2_PRS_SRAM_RI_WORD] = 0x0;
+ pe.sram.word[MVPP2_PRS_SRAM_RI_CTRL_WORD] = 0x0;
+ mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_L3_IP4,
+ MVPP2_PRS_RI_L3_PROTO_MASK);
+
+ /* Update shadow table and hw entry */
+ mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_PPPOE);
+ mvpp2_prs_hw_write(priv, &pe);
+
+ /* IPv6 over PPPoE */
+ tid = mvpp2_prs_tcam_first_free(priv, MVPP2_PE_FIRST_FREE_TID,
+ MVPP2_PE_LAST_FREE_TID);
+ if (tid < 0)
+ return tid;
+
+ memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
+ mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_PPPOE);
+ pe.index = tid;
+
+ mvpp2_prs_match_etype(&pe, 0, PPP_IPV6);
+
+ mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_IP6);
+ mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_L3_IP6,
+ MVPP2_PRS_RI_L3_PROTO_MASK);
+ /* Skip eth_type + 4 bytes of IPv6 header */
+ mvpp2_prs_sram_shift_set(&pe, MVPP2_ETH_TYPE_LEN + 4,
+ MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD);
+ /* Set L3 offset */
+ mvpp2_prs_sram_offset_set(&pe, MVPP2_PRS_SRAM_UDF_TYPE_L3,
+ MVPP2_ETH_TYPE_LEN,
+ MVPP2_PRS_SRAM_OP_SEL_UDF_ADD);
+
+ /* Update shadow table and hw entry */
+ mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_PPPOE);
+ mvpp2_prs_hw_write(priv, &pe);
+
+ /* Non-IP over PPPoE */
+ tid = mvpp2_prs_tcam_first_free(priv, MVPP2_PE_FIRST_FREE_TID,
+ MVPP2_PE_LAST_FREE_TID);
+ if (tid < 0)
+ return tid;
+
+ memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
+ mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_PPPOE);
+ pe.index = tid;
+
+ mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_L3_UN,
+ MVPP2_PRS_RI_L3_PROTO_MASK);
+
+ /* Finished: go to flowid generation */
+ mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_FLOWS);
+ mvpp2_prs_sram_bits_set(&pe, MVPP2_PRS_SRAM_LU_GEN_BIT, 1);
+ /* Set L3 offset even if it's unknown L3 */
+ mvpp2_prs_sram_offset_set(&pe, MVPP2_PRS_SRAM_UDF_TYPE_L3,
+ MVPP2_ETH_TYPE_LEN,
+ MVPP2_PRS_SRAM_OP_SEL_UDF_ADD);
+
+ /* Update shadow table and hw entry */
+ mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_PPPOE);
+ mvpp2_prs_hw_write(priv, &pe);
+
+ return 0;
+}
+
+/* Initialize entries for IPv4 */
+static int mvpp2_prs_ip4_init(struct mvpp2 *priv)
+{
+ struct mvpp2_prs_entry pe;
+ int err;
+
+ /* Set entries for TCP, UDP and IGMP over IPv4 */
+ err = mvpp2_prs_ip4_proto(priv, IPPROTO_TCP, MVPP2_PRS_RI_L4_TCP,
+ MVPP2_PRS_RI_L4_PROTO_MASK);
+ if (err)
+ return err;
+
+ err = mvpp2_prs_ip4_proto(priv, IPPROTO_UDP, MVPP2_PRS_RI_L4_UDP,
+ MVPP2_PRS_RI_L4_PROTO_MASK);
+ if (err)
+ return err;
+
+ err = mvpp2_prs_ip4_proto(priv, IPPROTO_IGMP,
+ MVPP2_PRS_RI_CPU_CODE_RX_SPEC |
+ MVPP2_PRS_RI_UDF3_RX_SPECIAL,
+ MVPP2_PRS_RI_CPU_CODE_MASK |
+ MVPP2_PRS_RI_UDF3_MASK);
+ if (err)
+ return err;
+
+ /* IPv4 Broadcast */
+ err = mvpp2_prs_ip4_cast(priv, MVPP2_PRS_L3_BROAD_CAST);
+ if (err)
+ return err;
+
+ /* IPv4 Multicast */
+ err = mvpp2_prs_ip4_cast(priv, MVPP2_PRS_L3_MULTI_CAST);
+ if (err)
+ return err;
+
+ /* Default IPv4 entry for unknown protocols */
+ memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
+ mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_IP4);
+ pe.index = MVPP2_PE_IP4_PROTO_UN;
+
+ /* Set next lu to IPv4 */
+ mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_IP4);
+ mvpp2_prs_sram_shift_set(&pe, 12, MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD);
+ /* Set L4 offset */
+ mvpp2_prs_sram_offset_set(&pe, MVPP2_PRS_SRAM_UDF_TYPE_L4,
+ sizeof(struct iphdr) - 4,
+ MVPP2_PRS_SRAM_OP_SEL_UDF_ADD);
+ mvpp2_prs_sram_ai_update(&pe, MVPP2_PRS_IPV4_DIP_AI_BIT,
+ MVPP2_PRS_IPV4_DIP_AI_BIT);
+ mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_L4_OTHER,
+ MVPP2_PRS_RI_L4_PROTO_MASK);
+
+ mvpp2_prs_tcam_ai_update(&pe, 0, MVPP2_PRS_IPV4_DIP_AI_BIT);
+ /* Unmask all ports */
+ mvpp2_prs_tcam_port_map_set(&pe, MVPP2_PRS_PORT_MASK);
+
+ /* Update shadow table and hw entry */
+ mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_IP4);
+ mvpp2_prs_hw_write(priv, &pe);
+
+ /* Default IPv4 entry for unicast address */
+ memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
+ mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_IP4);
+ pe.index = MVPP2_PE_IP4_ADDR_UN;
+
+ /* Finished: go to flowid generation */
+ mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_FLOWS);
+ mvpp2_prs_sram_bits_set(&pe, MVPP2_PRS_SRAM_LU_GEN_BIT, 1);
+ mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_L3_UCAST,
+ MVPP2_PRS_RI_L3_ADDR_MASK);
+
+ mvpp2_prs_tcam_ai_update(&pe, MVPP2_PRS_IPV4_DIP_AI_BIT,
+ MVPP2_PRS_IPV4_DIP_AI_BIT);
+ /* Unmask all ports */
+ mvpp2_prs_tcam_port_map_set(&pe, MVPP2_PRS_PORT_MASK);
+
+ /* Update shadow table and hw entry */
+ mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_IP4);
+ mvpp2_prs_hw_write(priv, &pe);
+
+ return 0;
+}
+
+/* Initialize entries for IPv6 */
+static int mvpp2_prs_ip6_init(struct mvpp2 *priv)
+{
+ struct mvpp2_prs_entry pe;
+ int tid, err;
+
+ /* Set entries for TCP, UDP and ICMP over IPv6 */
+ err = mvpp2_prs_ip6_proto(priv, IPPROTO_TCP,
+ MVPP2_PRS_RI_L4_TCP,
+ MVPP2_PRS_RI_L4_PROTO_MASK);
+ if (err)
+ return err;
+
+ err = mvpp2_prs_ip6_proto(priv, IPPROTO_UDP,
+ MVPP2_PRS_RI_L4_UDP,
+ MVPP2_PRS_RI_L4_PROTO_MASK);
+ if (err)
+ return err;
+
+ err = mvpp2_prs_ip6_proto(priv, IPPROTO_ICMPV6,
+ MVPP2_PRS_RI_CPU_CODE_RX_SPEC |
+ MVPP2_PRS_RI_UDF3_RX_SPECIAL,
+ MVPP2_PRS_RI_CPU_CODE_MASK |
+ MVPP2_PRS_RI_UDF3_MASK);
+ if (err)
+ return err;
+
+ /* IPv4 is the last header. This is similar case as 6-TCP or 17-UDP */
+ /* Result Info: UDF7=1, DS lite */
+ err = mvpp2_prs_ip6_proto(priv, IPPROTO_IPIP,
+ MVPP2_PRS_RI_UDF7_IP6_LITE,
+ MVPP2_PRS_RI_UDF7_MASK);
+ if (err)
+ return err;
+
+ /* IPv6 multicast */
+ err = mvpp2_prs_ip6_cast(priv, MVPP2_PRS_L3_MULTI_CAST);
+ if (err)
+ return err;
+
+ /* Entry for checking hop limit */
+ tid = mvpp2_prs_tcam_first_free(priv, MVPP2_PE_FIRST_FREE_TID,
+ MVPP2_PE_LAST_FREE_TID);
+ if (tid < 0)
+ return tid;
+
+ memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
+ mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_IP6);
+ pe.index = tid;
+
+ /* Finished: go to flowid generation */
+ mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_FLOWS);
+ mvpp2_prs_sram_bits_set(&pe, MVPP2_PRS_SRAM_LU_GEN_BIT, 1);
+ mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_L3_UN |
+ MVPP2_PRS_RI_DROP_MASK,
+ MVPP2_PRS_RI_L3_PROTO_MASK |
+ MVPP2_PRS_RI_DROP_MASK);
+
+ mvpp2_prs_tcam_data_byte_set(&pe, 1, 0x00, MVPP2_PRS_IPV6_HOP_MASK);
+ mvpp2_prs_tcam_ai_update(&pe, MVPP2_PRS_IPV6_NO_EXT_AI_BIT,
+ MVPP2_PRS_IPV6_NO_EXT_AI_BIT);
+
+ /* Update shadow table and hw entry */
+ mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_IP4);
+ mvpp2_prs_hw_write(priv, &pe);
+
+ /* Default IPv6 entry for unknown protocols */
+ memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
+ mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_IP6);
+ pe.index = MVPP2_PE_IP6_PROTO_UN;
+
+ /* Finished: go to flowid generation */
+ mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_FLOWS);
+ mvpp2_prs_sram_bits_set(&pe, MVPP2_PRS_SRAM_LU_GEN_BIT, 1);
+ mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_L4_OTHER,
+ MVPP2_PRS_RI_L4_PROTO_MASK);
+ /* Set L4 offset relatively to our current place */
+ mvpp2_prs_sram_offset_set(&pe, MVPP2_PRS_SRAM_UDF_TYPE_L4,
+ sizeof(struct ipv6hdr) - 4,
+ MVPP2_PRS_SRAM_OP_SEL_UDF_ADD);
+
+ mvpp2_prs_tcam_ai_update(&pe, MVPP2_PRS_IPV6_NO_EXT_AI_BIT,
+ MVPP2_PRS_IPV6_NO_EXT_AI_BIT);
+ /* Unmask all ports */
+ mvpp2_prs_tcam_port_map_set(&pe, MVPP2_PRS_PORT_MASK);
+
+ /* Update shadow table and hw entry */
+ mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_IP4);
+ mvpp2_prs_hw_write(priv, &pe);
+
+ /* Default IPv6 entry for unknown ext protocols */
+ memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
+ mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_IP6);
+ pe.index = MVPP2_PE_IP6_EXT_PROTO_UN;
+
+ /* Finished: go to flowid generation */
+ mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_FLOWS);
+ mvpp2_prs_sram_bits_set(&pe, MVPP2_PRS_SRAM_LU_GEN_BIT, 1);
+ mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_L4_OTHER,
+ MVPP2_PRS_RI_L4_PROTO_MASK);
+
+ mvpp2_prs_tcam_ai_update(&pe, MVPP2_PRS_IPV6_EXT_AI_BIT,
+ MVPP2_PRS_IPV6_EXT_AI_BIT);
+ /* Unmask all ports */
+ mvpp2_prs_tcam_port_map_set(&pe, MVPP2_PRS_PORT_MASK);
+
+ /* Update shadow table and hw entry */
+ mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_IP4);
+ mvpp2_prs_hw_write(priv, &pe);
+
+ /* Default IPv6 entry for unicast address */
+ memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
+ mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_IP6);
+ pe.index = MVPP2_PE_IP6_ADDR_UN;
+
+ /* Finished: go to IPv6 again */
+ mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_IP6);
+ mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_L3_UCAST,
+ MVPP2_PRS_RI_L3_ADDR_MASK);
+ mvpp2_prs_sram_ai_update(&pe, MVPP2_PRS_IPV6_NO_EXT_AI_BIT,
+ MVPP2_PRS_IPV6_NO_EXT_AI_BIT);
+ /* Shift back to IPV6 NH */
+ mvpp2_prs_sram_shift_set(&pe, -18, MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD);
+
+ mvpp2_prs_tcam_ai_update(&pe, 0, MVPP2_PRS_IPV6_NO_EXT_AI_BIT);
+ /* Unmask all ports */
+ mvpp2_prs_tcam_port_map_set(&pe, MVPP2_PRS_PORT_MASK);
+
+ /* Update shadow table and hw entry */
+ mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_IP6);
+ mvpp2_prs_hw_write(priv, &pe);
+
+ return 0;
+}
+
+/* Parser default initialization */
+static int mvpp2_prs_default_init(struct platform_device *pdev,
+ struct mvpp2 *priv)
+{
+ int err, index, i;
+
+ /* Enable tcam table */
+ mvpp2_write(priv, MVPP2_PRS_TCAM_CTRL_REG, MVPP2_PRS_TCAM_EN_MASK);
+
+ /* Clear all tcam and sram entries */
+ for (index = 0; index < MVPP2_PRS_TCAM_SRAM_SIZE; index++) {
+ mvpp2_write(priv, MVPP2_PRS_TCAM_IDX_REG, index);
+ for (i = 0; i < MVPP2_PRS_TCAM_WORDS; i++)
+ mvpp2_write(priv, MVPP2_PRS_TCAM_DATA_REG(i), 0);
+
+ mvpp2_write(priv, MVPP2_PRS_SRAM_IDX_REG, index);
+ for (i = 0; i < MVPP2_PRS_SRAM_WORDS; i++)
+ mvpp2_write(priv, MVPP2_PRS_SRAM_DATA_REG(i), 0);
+ }
+
+ /* Invalidate all tcam entries */
+ for (index = 0; index < MVPP2_PRS_TCAM_SRAM_SIZE; index++)
+ mvpp2_prs_hw_inv(priv, index);
+
+ priv->prs_shadow = devm_kcalloc(&pdev->dev, MVPP2_PRS_TCAM_SRAM_SIZE,
+ sizeof(struct mvpp2_prs_shadow),
+ GFP_KERNEL);
+ if (!priv->prs_shadow)
+ return -ENOMEM;
+
+ /* Always start from lookup = 0 */
+ for (index = 0; index < MVPP2_MAX_PORTS; index++)
+ mvpp2_prs_hw_port_init(priv, index, MVPP2_PRS_LU_MH,
+ MVPP2_PRS_PORT_LU_MAX, 0);
+
+ mvpp2_prs_def_flow_init(priv);
+
+ mvpp2_prs_mh_init(priv);
+
+ mvpp2_prs_mac_init(priv);
+
+ mvpp2_prs_dsa_init(priv);
+
+ err = mvpp2_prs_etype_init(priv);
+ if (err)
+ return err;
+
+ err = mvpp2_prs_vlan_init(pdev, priv);
+ if (err)
+ return err;
+
+ err = mvpp2_prs_pppoe_init(priv);
+ if (err)
+ return err;
+
+ err = mvpp2_prs_ip6_init(priv);
+ if (err)
+ return err;
+
+ err = mvpp2_prs_ip4_init(priv);
+ if (err)
+ return err;
+
+ return 0;
+}
+
+/* Compare MAC DA with tcam entry data */
+static bool mvpp2_prs_mac_range_equals(struct mvpp2_prs_entry *pe,
+ const u8 *da, unsigned char *mask)
+{
+ unsigned char tcam_byte, tcam_mask;
+ int index;
+
+ for (index = 0; index < ETH_ALEN; index++) {
+ mvpp2_prs_tcam_data_byte_get(pe, index, &tcam_byte, &tcam_mask);
+ if (tcam_mask != mask[index])
+ return false;
+
+ if ((tcam_mask & tcam_byte) != (da[index] & mask[index]))
+ return false;
+ }
+
+ return true;
+}
+
+/* Find tcam entry with matched pair <MAC DA, port> */
+static struct mvpp2_prs_entry *
+mvpp2_prs_mac_da_range_find(struct mvpp2 *priv, int pmap, const u8 *da,
+ unsigned char *mask, int udf_type)
+{
+ struct mvpp2_prs_entry *pe;
+ int tid;
+
+ pe = kzalloc(sizeof(*pe), GFP_KERNEL);
+ if (!pe)
+ return NULL;
+ mvpp2_prs_tcam_lu_set(pe, MVPP2_PRS_LU_MAC);
+
+ /* Go through the all entires with MVPP2_PRS_LU_MAC */
+ for (tid = MVPP2_PE_FIRST_FREE_TID;
+ tid <= MVPP2_PE_LAST_FREE_TID; tid++) {
+ unsigned int entry_pmap;
+
+ if (!priv->prs_shadow[tid].valid ||
+ (priv->prs_shadow[tid].lu != MVPP2_PRS_LU_MAC) ||
+ (priv->prs_shadow[tid].udf != udf_type))
+ continue;
+
+ pe->index = tid;
+ mvpp2_prs_hw_read(priv, pe);
+ entry_pmap = mvpp2_prs_tcam_port_map_get(pe);
+
+ if (mvpp2_prs_mac_range_equals(pe, da, mask) &&
+ entry_pmap == pmap)
+ return pe;
+ }
+ kfree(pe);
+
+ return NULL;
+}
+
+/* Update parser's mac da entry */
+static int mvpp2_prs_mac_da_accept(struct mvpp2 *priv, int port,
+ const u8 *da, bool add)
+{
+ struct mvpp2_prs_entry *pe;
+ unsigned int pmap, len, ri;
+ unsigned char mask[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
+ int tid;
+
+ /* Scan TCAM and see if entry with this <MAC DA, port> already exist */
+ pe = mvpp2_prs_mac_da_range_find(priv, (1 << port), da, mask,
+ MVPP2_PRS_UDF_MAC_DEF);
+
+ /* No such entry */
+ if (!pe) {
+ if (!add)
+ return 0;
+
+ /* Create new TCAM entry */
+ /* Find first range mac entry*/
+ for (tid = MVPP2_PE_FIRST_FREE_TID;
+ tid <= MVPP2_PE_LAST_FREE_TID; tid++)
+ if (priv->prs_shadow[tid].valid &&
+ (priv->prs_shadow[tid].lu == MVPP2_PRS_LU_MAC) &&
+ (priv->prs_shadow[tid].udf ==
+ MVPP2_PRS_UDF_MAC_RANGE))
+ break;
+
+ /* Go through the all entries from first to last */
+ tid = mvpp2_prs_tcam_first_free(priv, MVPP2_PE_FIRST_FREE_TID,
+ tid - 1);
+ if (tid < 0)
+ return tid;
+
+ pe = kzalloc(sizeof(*pe), GFP_KERNEL);
+ if (!pe)
+ return -1;
+ mvpp2_prs_tcam_lu_set(pe, MVPP2_PRS_LU_MAC);
+ pe->index = tid;
+
+ /* Mask all ports */
+ mvpp2_prs_tcam_port_map_set(pe, 0);
+ }
+
+ /* Update port mask */
+ mvpp2_prs_tcam_port_set(pe, port, add);
+
+ /* Invalidate the entry if no ports are left enabled */
+ pmap = mvpp2_prs_tcam_port_map_get(pe);
+ if (pmap == 0) {
+ if (add) {
+ kfree(pe);
+ return -1;
+ }
+ mvpp2_prs_hw_inv(priv, pe->index);
+ priv->prs_shadow[pe->index].valid = false;
+ kfree(pe);
+ return 0;
+ }
+
+ /* Continue - set next lookup */
+ mvpp2_prs_sram_next_lu_set(pe, MVPP2_PRS_LU_DSA);
+
+ /* Set match on DA */
+ len = ETH_ALEN;
+ while (len--)
+ mvpp2_prs_tcam_data_byte_set(pe, len, da[len], 0xff);
+
+ /* Set result info bits */
+ if (is_broadcast_ether_addr(da))
+ ri = MVPP2_PRS_RI_L2_BCAST;
+ else if (is_multicast_ether_addr(da))
+ ri = MVPP2_PRS_RI_L2_MCAST;
+ else
+ ri = MVPP2_PRS_RI_L2_UCAST | MVPP2_PRS_RI_MAC_ME_MASK;
+
+ mvpp2_prs_sram_ri_update(pe, ri, MVPP2_PRS_RI_L2_CAST_MASK |
+ MVPP2_PRS_RI_MAC_ME_MASK);
+ mvpp2_prs_shadow_ri_set(priv, pe->index, ri, MVPP2_PRS_RI_L2_CAST_MASK |
+ MVPP2_PRS_RI_MAC_ME_MASK);
+
+ /* Shift to ethertype */
+ mvpp2_prs_sram_shift_set(pe, 2 * ETH_ALEN,
+ MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD);
+
+ /* Update shadow table and hw entry */
+ priv->prs_shadow[pe->index].udf = MVPP2_PRS_UDF_MAC_DEF;
+ mvpp2_prs_shadow_set(priv, pe->index, MVPP2_PRS_LU_MAC);
+ mvpp2_prs_hw_write(priv, pe);
+
+ kfree(pe);
+
+ return 0;
+}
+
+static int mvpp2_prs_update_mac_da(struct net_device *dev, const u8 *da)
+{
+ struct mvpp2_port *port = netdev_priv(dev);
+ int err;
+
+ /* Remove old parser entry */
+ err = mvpp2_prs_mac_da_accept(port->priv, port->id, dev->dev_addr,
+ false);
+ if (err)
+ return err;
+
+ /* Add new parser entry */
+ err = mvpp2_prs_mac_da_accept(port->priv, port->id, da, true);
+ if (err)
+ return err;
+
+ /* Set addr in the device */
+ ether_addr_copy(dev->dev_addr, da);
+
+ return 0;
+}
+
+/* Delete all port's multicast simple (not range) entries */
+static void mvpp2_prs_mcast_del_all(struct mvpp2 *priv, int port)
+{
+ struct mvpp2_prs_entry pe;
+ int index, tid;
+
+ for (tid = MVPP2_PE_FIRST_FREE_TID;
+ tid <= MVPP2_PE_LAST_FREE_TID; tid++) {
+ unsigned char da[ETH_ALEN], da_mask[ETH_ALEN];
+
+ if (!priv->prs_shadow[tid].valid ||
+ (priv->prs_shadow[tid].lu != MVPP2_PRS_LU_MAC) ||
+ (priv->prs_shadow[tid].udf != MVPP2_PRS_UDF_MAC_DEF))
+ continue;
+
+ /* Only simple mac entries */
+ pe.index = tid;
+ mvpp2_prs_hw_read(priv, &pe);
+
+ /* Read mac addr from entry */
+ for (index = 0; index < ETH_ALEN; index++)
+ mvpp2_prs_tcam_data_byte_get(&pe, index, &da[index],
+ &da_mask[index]);
+
+ if (is_multicast_ether_addr(da) && !is_broadcast_ether_addr(da))
+ /* Delete this entry */
+ mvpp2_prs_mac_da_accept(priv, port, da, false);
+ }
+}
+
+static int mvpp2_prs_tag_mode_set(struct mvpp2 *priv, int port, int type)
+{
+ switch (type) {
+ case MVPP2_TAG_TYPE_EDSA:
+ /* Add port to EDSA entries */
+ mvpp2_prs_dsa_tag_set(priv, port, true,
+ MVPP2_PRS_TAGGED, MVPP2_PRS_EDSA);
+ mvpp2_prs_dsa_tag_set(priv, port, true,
+ MVPP2_PRS_UNTAGGED, MVPP2_PRS_EDSA);
+ /* Remove port from DSA entries */
+ mvpp2_prs_dsa_tag_set(priv, port, false,
+ MVPP2_PRS_TAGGED, MVPP2_PRS_DSA);
+ mvpp2_prs_dsa_tag_set(priv, port, false,
+ MVPP2_PRS_UNTAGGED, MVPP2_PRS_DSA);
+ break;
+
+ case MVPP2_TAG_TYPE_DSA:
+ /* Add port to DSA entries */
+ mvpp2_prs_dsa_tag_set(priv, port, true,
+ MVPP2_PRS_TAGGED, MVPP2_PRS_DSA);
+ mvpp2_prs_dsa_tag_set(priv, port, true,
+ MVPP2_PRS_UNTAGGED, MVPP2_PRS_DSA);
+ /* Remove port from EDSA entries */
+ mvpp2_prs_dsa_tag_set(priv, port, false,
+ MVPP2_PRS_TAGGED, MVPP2_PRS_EDSA);
+ mvpp2_prs_dsa_tag_set(priv, port, false,
+ MVPP2_PRS_UNTAGGED, MVPP2_PRS_EDSA);
+ break;
+
+ case MVPP2_TAG_TYPE_MH:
+ case MVPP2_TAG_TYPE_NONE:
+ /* Remove port form EDSA and DSA entries */
+ mvpp2_prs_dsa_tag_set(priv, port, false,
+ MVPP2_PRS_TAGGED, MVPP2_PRS_DSA);
+ mvpp2_prs_dsa_tag_set(priv, port, false,
+ MVPP2_PRS_UNTAGGED, MVPP2_PRS_DSA);
+ mvpp2_prs_dsa_tag_set(priv, port, false,
+ MVPP2_PRS_TAGGED, MVPP2_PRS_EDSA);
+ mvpp2_prs_dsa_tag_set(priv, port, false,
+ MVPP2_PRS_UNTAGGED, MVPP2_PRS_EDSA);
+ break;
+
+ default:
+ if ((type < 0) || (type > MVPP2_TAG_TYPE_EDSA))
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+/* Set prs flow for the port */
+static int mvpp2_prs_def_flow(struct mvpp2_port *port)
+{
+ struct mvpp2_prs_entry *pe;
+ int tid;
+
+ pe = mvpp2_prs_flow_find(port->priv, port->id);
+
+ /* Such entry not exist */
+ if (!pe) {
+ /* Go through the all entires from last to first */
+ tid = mvpp2_prs_tcam_first_free(port->priv,
+ MVPP2_PE_LAST_FREE_TID,
+ MVPP2_PE_FIRST_FREE_TID);
+ if (tid < 0)
+ return tid;
+
+ pe = kzalloc(sizeof(*pe), GFP_KERNEL);
+ if (!pe)
+ return -ENOMEM;
+
+ mvpp2_prs_tcam_lu_set(pe, MVPP2_PRS_LU_FLOWS);
+ pe->index = tid;
+
+ /* Set flow ID*/
+ mvpp2_prs_sram_ai_update(pe, port->id, MVPP2_PRS_FLOW_ID_MASK);
+ mvpp2_prs_sram_bits_set(pe, MVPP2_PRS_SRAM_LU_DONE_BIT, 1);
+
+ /* Update shadow table */
+ mvpp2_prs_shadow_set(port->priv, pe->index, MVPP2_PRS_LU_FLOWS);
+ }
+
+ mvpp2_prs_tcam_port_map_set(pe, (1 << port->id));
+ mvpp2_prs_hw_write(port->priv, pe);
+ kfree(pe);
+
+ return 0;
+}
+
+/* Classifier configuration routines */
+
+/* Update classification flow table registers */
+static void mvpp2_cls_flow_write(struct mvpp2 *priv,
+ struct mvpp2_cls_flow_entry *fe)
+{
+ mvpp2_write(priv, MVPP2_CLS_FLOW_INDEX_REG, fe->index);
+ mvpp2_write(priv, MVPP2_CLS_FLOW_TBL0_REG, fe->data[0]);
+ mvpp2_write(priv, MVPP2_CLS_FLOW_TBL1_REG, fe->data[1]);
+ mvpp2_write(priv, MVPP2_CLS_FLOW_TBL2_REG, fe->data[2]);
+}
+
+/* Update classification lookup table register */
+static void mvpp2_cls_lookup_write(struct mvpp2 *priv,
+ struct mvpp2_cls_lookup_entry *le)
+{
+ u32 val;
+
+ val = (le->way << MVPP2_CLS_LKP_INDEX_WAY_OFFS) | le->lkpid;
+ mvpp2_write(priv, MVPP2_CLS_LKP_INDEX_REG, val);
+ mvpp2_write(priv, MVPP2_CLS_LKP_TBL_REG, le->data);
+}
+
+/* Classifier default initialization */
+static void mvpp2_cls_init(struct mvpp2 *priv)
+{
+ struct mvpp2_cls_lookup_entry le;
+ struct mvpp2_cls_flow_entry fe;
+ int index;
+
+ /* Enable classifier */
+ mvpp2_write(priv, MVPP2_CLS_MODE_REG, MVPP2_CLS_MODE_ACTIVE_MASK);
+
+ /* Clear classifier flow table */
+ memset(&fe.data, 0, MVPP2_CLS_FLOWS_TBL_DATA_WORDS);
+ for (index = 0; index < MVPP2_CLS_FLOWS_TBL_SIZE; index++) {
+ fe.index = index;
+ mvpp2_cls_flow_write(priv, &fe);
+ }
+
+ /* Clear classifier lookup table */
+ le.data = 0;
+ for (index = 0; index < MVPP2_CLS_LKP_TBL_SIZE; index++) {
+ le.lkpid = index;
+ le.way = 0;
+ mvpp2_cls_lookup_write(priv, &le);
+
+ le.way = 1;
+ mvpp2_cls_lookup_write(priv, &le);
+ }
+}
+
+static void mvpp2_cls_port_config(struct mvpp2_port *port)
+{
+ struct mvpp2_cls_lookup_entry le;
+ u32 val;
+
+ /* Set way for the port */
+ val = mvpp2_read(port->priv, MVPP2_CLS_PORT_WAY_REG);
+ val &= ~MVPP2_CLS_PORT_WAY_MASK(port->id);
+ mvpp2_write(port->priv, MVPP2_CLS_PORT_WAY_REG, val);
+
+ /* Pick the entry to be accessed in lookup ID decoding table
+ * according to the way and lkpid.
+ */
+ le.lkpid = port->id;
+ le.way = 0;
+ le.data = 0;
+
+ /* Set initial CPU queue for receiving packets */
+ le.data &= ~MVPP2_CLS_LKP_TBL_RXQ_MASK;
+ le.data |= port->first_rxq;
+
+ /* Disable classification engines */
+ le.data &= ~MVPP2_CLS_LKP_TBL_LOOKUP_EN_MASK;
+
+ /* Update lookup ID table entry */
+ mvpp2_cls_lookup_write(port->priv, &le);
+}
+
+/* Set CPU queue number for oversize packets */
+static void mvpp2_cls_oversize_rxq_set(struct mvpp2_port *port)
+{
+ u32 val;
+
+ mvpp2_write(port->priv, MVPP2_CLS_OVERSIZE_RXQ_LOW_REG(port->id),
+ port->first_rxq & MVPP2_CLS_OVERSIZE_RXQ_LOW_MASK);
+
+ mvpp2_write(port->priv, MVPP2_CLS_SWFWD_P2HQ_REG(port->id),
+ (port->first_rxq >> MVPP2_CLS_OVERSIZE_RXQ_LOW_BITS));
+
+ val = mvpp2_read(port->priv, MVPP2_CLS_SWFWD_PCTRL_REG);
+ val |= MVPP2_CLS_SWFWD_PCTRL_MASK(port->id);
+ mvpp2_write(port->priv, MVPP2_CLS_SWFWD_PCTRL_REG, val);
+}
+
+/* Buffer Manager configuration routines */
+
+/* Create pool */
+static int mvpp2_bm_pool_create(struct platform_device *pdev,
+ struct mvpp2 *priv,
+ struct mvpp2_bm_pool *bm_pool, int size)
+{
+ int size_bytes;
+ u32 val;
+
+ size_bytes = sizeof(u32) * size;
+ bm_pool->virt_addr = dma_alloc_coherent(&pdev->dev, size_bytes,
+ &bm_pool->phys_addr,
+ GFP_KERNEL);
+ if (!bm_pool->virt_addr)
+ return -ENOMEM;
+
+ if (!IS_ALIGNED((u32)bm_pool->virt_addr, MVPP2_BM_POOL_PTR_ALIGN)) {
+ dma_free_coherent(&pdev->dev, size_bytes, bm_pool->virt_addr,
+ bm_pool->phys_addr);
+ dev_err(&pdev->dev, "BM pool %d is not %d bytes aligned\n",
+ bm_pool->id, MVPP2_BM_POOL_PTR_ALIGN);
+ return -ENOMEM;
+ }
+
+ mvpp2_write(priv, MVPP2_BM_POOL_BASE_REG(bm_pool->id),
+ bm_pool->phys_addr);
+ mvpp2_write(priv, MVPP2_BM_POOL_SIZE_REG(bm_pool->id), size);
+
+ val = mvpp2_read(priv, MVPP2_BM_POOL_CTRL_REG(bm_pool->id));
+ val |= MVPP2_BM_START_MASK;
+ mvpp2_write(priv, MVPP2_BM_POOL_CTRL_REG(bm_pool->id), val);
+
+ bm_pool->type = MVPP2_BM_FREE;
+ bm_pool->size = size;
+ bm_pool->pkt_size = 0;
+ bm_pool->buf_num = 0;
+ atomic_set(&bm_pool->in_use, 0);
+ spin_lock_init(&bm_pool->lock);
+
+ return 0;
+}
+
+/* Set pool buffer size */
+static void mvpp2_bm_pool_bufsize_set(struct mvpp2 *priv,
+ struct mvpp2_bm_pool *bm_pool,
+ int buf_size)
+{
+ u32 val;
+
+ bm_pool->buf_size = buf_size;
+
+ val = ALIGN(buf_size, 1 << MVPP2_POOL_BUF_SIZE_OFFSET);
+ mvpp2_write(priv, MVPP2_POOL_BUF_SIZE_REG(bm_pool->id), val);
+}
+
+/* Free all buffers from the pool */
+static void mvpp2_bm_bufs_free(struct mvpp2 *priv, struct mvpp2_bm_pool *bm_pool)
+{
+ int i;
+
+ for (i = 0; i < bm_pool->buf_num; i++) {
+ u32 vaddr;
+
+ /* Get buffer virtual address (indirect access) */
+ mvpp2_read(priv, MVPP2_BM_PHY_ALLOC_REG(bm_pool->id));
+ vaddr = mvpp2_read(priv, MVPP2_BM_VIRT_ALLOC_REG);
+ if (!vaddr)
+ break;
+ dev_kfree_skb_any((struct sk_buff *)vaddr);
+ }
+
+ /* Update BM driver with number of buffers removed from pool */
+ bm_pool->buf_num -= i;
+}
+
+/* Cleanup pool */
+static int mvpp2_bm_pool_destroy(struct platform_device *pdev,
+ struct mvpp2 *priv,
+ struct mvpp2_bm_pool *bm_pool)
+{
+ u32 val;
+
+ mvpp2_bm_bufs_free(priv, bm_pool);
+ if (bm_pool->buf_num) {
+ WARN(1, "cannot free all buffers in pool %d\n", bm_pool->id);
+ return 0;
+ }
+
+ val = mvpp2_read(priv, MVPP2_BM_POOL_CTRL_REG(bm_pool->id));
+ val |= MVPP2_BM_STOP_MASK;
+ mvpp2_write(priv, MVPP2_BM_POOL_CTRL_REG(bm_pool->id), val);
+
+ dma_free_coherent(&pdev->dev, sizeof(u32) * bm_pool->size,
+ bm_pool->virt_addr,
+ bm_pool->phys_addr);
+ return 0;
+}
+
+static int mvpp2_bm_pools_init(struct platform_device *pdev,
+ struct mvpp2 *priv)
+{
+ int i, err, size;
+ struct mvpp2_bm_pool *bm_pool;
+
+ /* Create all pools with maximum size */
+ size = MVPP2_BM_POOL_SIZE_MAX;
+ for (i = 0; i < MVPP2_BM_POOLS_NUM; i++) {
+ bm_pool = &priv->bm_pools[i];
+ bm_pool->id = i;
+ err = mvpp2_bm_pool_create(pdev, priv, bm_pool, size);
+ if (err)
+ goto err_unroll_pools;
+ mvpp2_bm_pool_bufsize_set(priv, bm_pool, 0);
+ }
+ return 0;
+
+err_unroll_pools:
+ dev_err(&pdev->dev, "failed to create BM pool %d, size %d\n", i, size);
+ for (i = i - 1; i >= 0; i--)
+ mvpp2_bm_pool_destroy(pdev, priv, &priv->bm_pools[i]);
+ return err;
+}
+
+static int mvpp2_bm_init(struct platform_device *pdev, struct mvpp2 *priv)
+{
+ int i, err;
+
+ for (i = 0; i < MVPP2_BM_POOLS_NUM; i++) {
+ /* Mask BM all interrupts */
+ mvpp2_write(priv, MVPP2_BM_INTR_MASK_REG(i), 0);
+ /* Clear BM cause register */
+ mvpp2_write(priv, MVPP2_BM_INTR_CAUSE_REG(i), 0);
+ }
+
+ /* Allocate and initialize BM pools */
+ priv->bm_pools = devm_kcalloc(&pdev->dev, MVPP2_BM_POOLS_NUM,
+ sizeof(struct mvpp2_bm_pool), GFP_KERNEL);
+ if (!priv->bm_pools)
+ return -ENOMEM;
+
+ err = mvpp2_bm_pools_init(pdev, priv);
+ if (err < 0)
+ return err;
+ return 0;
+}
+
+/* Attach long pool to rxq */
+static void mvpp2_rxq_long_pool_set(struct mvpp2_port *port,
+ int lrxq, int long_pool)
+{
+ u32 val;
+ int prxq;
+
+ /* Get queue physical ID */
+ prxq = port->rxqs[lrxq]->id;
+
+ val = mvpp2_read(port->priv, MVPP2_RXQ_CONFIG_REG(prxq));
+ val &= ~MVPP2_RXQ_POOL_LONG_MASK;
+ val |= ((long_pool << MVPP2_RXQ_POOL_LONG_OFFS) &
+ MVPP2_RXQ_POOL_LONG_MASK);
+
+ mvpp2_write(port->priv, MVPP2_RXQ_CONFIG_REG(prxq), val);
+}
+
+/* Attach short pool to rxq */
+static void mvpp2_rxq_short_pool_set(struct mvpp2_port *port,
+ int lrxq, int short_pool)
+{
+ u32 val;
+ int prxq;
+
+ /* Get queue physical ID */
+ prxq = port->rxqs[lrxq]->id;
+
+ val = mvpp2_read(port->priv, MVPP2_RXQ_CONFIG_REG(prxq));
+ val &= ~MVPP2_RXQ_POOL_SHORT_MASK;
+ val |= ((short_pool << MVPP2_RXQ_POOL_SHORT_OFFS) &
+ MVPP2_RXQ_POOL_SHORT_MASK);
+
+ mvpp2_write(port->priv, MVPP2_RXQ_CONFIG_REG(prxq), val);
+}
+
+/* Allocate skb for BM pool */
+static struct sk_buff *mvpp2_skb_alloc(struct mvpp2_port *port,
+ struct mvpp2_bm_pool *bm_pool,
+ dma_addr_t *buf_phys_addr,
+ gfp_t gfp_mask)
+{
+ struct sk_buff *skb;
+ dma_addr_t phys_addr;
+
+ skb = __dev_alloc_skb(bm_pool->pkt_size, gfp_mask);
+ if (!skb)
+ return NULL;
+
+ phys_addr = dma_map_single(port->dev->dev.parent, skb->head,
+ MVPP2_RX_BUF_SIZE(bm_pool->pkt_size),
+ DMA_FROM_DEVICE);
+ if (unlikely(dma_mapping_error(port->dev->dev.parent, phys_addr))) {
+ dev_kfree_skb_any(skb);
+ return NULL;
+ }
+ *buf_phys_addr = phys_addr;
+
+ return skb;
+}
+
+/* Set pool number in a BM cookie */
+static inline u32 mvpp2_bm_cookie_pool_set(u32 cookie, int pool)
+{
+ u32 bm;
+
+ bm = cookie & ~(0xFF << MVPP2_BM_COOKIE_POOL_OFFS);
+ bm |= ((pool & 0xFF) << MVPP2_BM_COOKIE_POOL_OFFS);
+
+ return bm;
+}
+
+/* Get pool number from a BM cookie */
+static inline int mvpp2_bm_cookie_pool_get(u32 cookie)
+{
+ return (cookie >> MVPP2_BM_COOKIE_POOL_OFFS) & 0xFF;
+}
+
+/* Release buffer to BM */
+static inline void mvpp2_bm_pool_put(struct mvpp2_port *port, int pool,
+ u32 buf_phys_addr, u32 buf_virt_addr)
+{
+ mvpp2_write(port->priv, MVPP2_BM_VIRT_RLS_REG, buf_virt_addr);
+ mvpp2_write(port->priv, MVPP2_BM_PHY_RLS_REG(pool), buf_phys_addr);
+}
+
+/* Release multicast buffer */
+static void mvpp2_bm_pool_mc_put(struct mvpp2_port *port, int pool,
+ u32 buf_phys_addr, u32 buf_virt_addr,
+ int mc_id)
+{
+ u32 val = 0;
+
+ val |= (mc_id & MVPP2_BM_MC_ID_MASK);
+ mvpp2_write(port->priv, MVPP2_BM_MC_RLS_REG, val);
+
+ mvpp2_bm_pool_put(port, pool,
+ buf_phys_addr | MVPP2_BM_PHY_RLS_MC_BUFF_MASK,
+ buf_virt_addr);
+}
+
+/* Refill BM pool */
+static void mvpp2_pool_refill(struct mvpp2_port *port, u32 bm,
+ u32 phys_addr, u32 cookie)
+{
+ int pool = mvpp2_bm_cookie_pool_get(bm);
+
+ mvpp2_bm_pool_put(port, pool, phys_addr, cookie);
+}
+
+/* Allocate buffers for the pool */
+static int mvpp2_bm_bufs_add(struct mvpp2_port *port,
+ struct mvpp2_bm_pool *bm_pool, int buf_num)
+{
+ struct sk_buff *skb;
+ int i, buf_size, total_size;
+ u32 bm;
+ dma_addr_t phys_addr;
+
+ buf_size = MVPP2_RX_BUF_SIZE(bm_pool->pkt_size);
+ total_size = MVPP2_RX_TOTAL_SIZE(buf_size);
+
+ if (buf_num < 0 ||
+ (buf_num + bm_pool->buf_num > bm_pool->size)) {
+ netdev_err(port->dev,
+ "cannot allocate %d buffers for pool %d\n",
+ buf_num, bm_pool->id);
+ return 0;
+ }
+
+ bm = mvpp2_bm_cookie_pool_set(0, bm_pool->id);
+ for (i = 0; i < buf_num; i++) {
+ skb = mvpp2_skb_alloc(port, bm_pool, &phys_addr, GFP_KERNEL);
+ if (!skb)
+ break;
+
+ mvpp2_pool_refill(port, bm, (u32)phys_addr, (u32)skb);
+ }
+
+ /* Update BM driver with number of buffers added to pool */
+ bm_pool->buf_num += i;
+ bm_pool->in_use_thresh = bm_pool->buf_num / 4;
+
+ netdev_dbg(port->dev,
+ "%s pool %d: pkt_size=%4d, buf_size=%4d, total_size=%4d\n",
+ bm_pool->type == MVPP2_BM_SWF_SHORT ? "short" : " long",
+ bm_pool->id, bm_pool->pkt_size, buf_size, total_size);
+
+ netdev_dbg(port->dev,
+ "%s pool %d: %d of %d buffers added\n",
+ bm_pool->type == MVPP2_BM_SWF_SHORT ? "short" : " long",
+ bm_pool->id, i, buf_num);
+ return i;
+}
+
+/* Notify the driver that BM pool is being used as specific type and return the
+ * pool pointer on success
+ */
+static struct mvpp2_bm_pool *
+mvpp2_bm_pool_use(struct mvpp2_port *port, int pool, enum mvpp2_bm_type type,
+ int pkt_size)
+{
+ unsigned long flags = 0;
+ struct mvpp2_bm_pool *new_pool = &port->priv->bm_pools[pool];
+ int num;
+
+ if (new_pool->type != MVPP2_BM_FREE && new_pool->type != type) {
+ netdev_err(port->dev, "mixing pool types is forbidden\n");
+ return NULL;
+ }
+
+ spin_lock_irqsave(&new_pool->lock, flags);
+
+ if (new_pool->type == MVPP2_BM_FREE)
+ new_pool->type = type;
+
+ /* Allocate buffers in case BM pool is used as long pool, but packet
+ * size doesn't match MTU or BM pool hasn't being used yet
+ */
+ if (((type == MVPP2_BM_SWF_LONG) && (pkt_size > new_pool->pkt_size)) ||
+ (new_pool->pkt_size == 0)) {
+ int pkts_num;
+
+ /* Set default buffer number or free all the buffers in case
+ * the pool is not empty
+ */
+ pkts_num = new_pool->buf_num;
+ if (pkts_num == 0)
+ pkts_num = type == MVPP2_BM_SWF_LONG ?
+ MVPP2_BM_LONG_BUF_NUM :
+ MVPP2_BM_SHORT_BUF_NUM;
+ else
+ mvpp2_bm_bufs_free(port->priv, new_pool);
+
+ new_pool->pkt_size = pkt_size;
+
+ /* Allocate buffers for this pool */
+ num = mvpp2_bm_bufs_add(port, new_pool, pkts_num);
+ if (num != pkts_num) {
+ WARN(1, "pool %d: %d of %d allocated\n",
+ new_pool->id, num, pkts_num);
+ /* We need to undo the bufs_add() allocations */
+ spin_unlock_irqrestore(&new_pool->lock, flags);
+ return NULL;
+ }
+ }
+
+ mvpp2_bm_pool_bufsize_set(port->priv, new_pool,
+ MVPP2_RX_BUF_SIZE(new_pool->pkt_size));
+
+ spin_unlock_irqrestore(&new_pool->lock, flags);
+
+ return new_pool;
+}
+
+/* Initialize pools for swf */
+static int mvpp2_swf_bm_pool_init(struct mvpp2_port *port)
+{
+ unsigned long flags = 0;
+ int rxq;
+
+ if (!port->pool_long) {
+ port->pool_long =
+ mvpp2_bm_pool_use(port, MVPP2_BM_SWF_LONG_POOL(port->id),
+ MVPP2_BM_SWF_LONG,
+ port->pkt_size);
+ if (!port->pool_long)
+ return -ENOMEM;
+
+ spin_lock_irqsave(&port->pool_long->lock, flags);
+ port->pool_long->port_map |= (1 << port->id);
+ spin_unlock_irqrestore(&port->pool_long->lock, flags);
+
+ for (rxq = 0; rxq < rxq_number; rxq++)
+ mvpp2_rxq_long_pool_set(port, rxq, port->pool_long->id);
+ }
+
+ if (!port->pool_short) {
+ port->pool_short =
+ mvpp2_bm_pool_use(port, MVPP2_BM_SWF_SHORT_POOL,
+ MVPP2_BM_SWF_SHORT,
+ MVPP2_BM_SHORT_PKT_SIZE);
+ if (!port->pool_short)
+ return -ENOMEM;
+
+ spin_lock_irqsave(&port->pool_short->lock, flags);
+ port->pool_short->port_map |= (1 << port->id);
+ spin_unlock_irqrestore(&port->pool_short->lock, flags);
+
+ for (rxq = 0; rxq < rxq_number; rxq++)
+ mvpp2_rxq_short_pool_set(port, rxq,
+ port->pool_short->id);
+ }
+
+ return 0;
+}
+
+static int mvpp2_bm_update_mtu(struct net_device *dev, int mtu)
+{
+ struct mvpp2_port *port = netdev_priv(dev);
+ struct mvpp2_bm_pool *port_pool = port->pool_long;
+ int num, pkts_num = port_pool->buf_num;
+ int pkt_size = MVPP2_RX_PKT_SIZE(mtu);
+
+ /* Update BM pool with new buffer size */
+ mvpp2_bm_bufs_free(port->priv, port_pool);
+ if (port_pool->buf_num) {
+ WARN(1, "cannot free all buffers in pool %d\n", port_pool->id);
+ return -EIO;
+ }
+
+ port_pool->pkt_size = pkt_size;
+ num = mvpp2_bm_bufs_add(port, port_pool, pkts_num);
+ if (num != pkts_num) {
+ WARN(1, "pool %d: %d of %d allocated\n",
+ port_pool->id, num, pkts_num);
+ return -EIO;
+ }
+
+ mvpp2_bm_pool_bufsize_set(port->priv, port_pool,
+ MVPP2_RX_BUF_SIZE(port_pool->pkt_size));
+ dev->mtu = mtu;
+ netdev_update_features(dev);
+ return 0;
+}
+
+static inline void mvpp2_interrupts_enable(struct mvpp2_port *port)
+{
+ int cpu, cpu_mask = 0;
+
+ for_each_present_cpu(cpu)
+ cpu_mask |= 1 << cpu;
+ mvpp2_write(port->priv, MVPP2_ISR_ENABLE_REG(port->id),
+ MVPP2_ISR_ENABLE_INTERRUPT(cpu_mask));
+}
+
+static inline void mvpp2_interrupts_disable(struct mvpp2_port *port)
+{
+ int cpu, cpu_mask = 0;
+
+ for_each_present_cpu(cpu)
+ cpu_mask |= 1 << cpu;
+ mvpp2_write(port->priv, MVPP2_ISR_ENABLE_REG(port->id),
+ MVPP2_ISR_DISABLE_INTERRUPT(cpu_mask));
+}
+
+/* Mask the current CPU's Rx/Tx interrupts */
+static void mvpp2_interrupts_mask(void *arg)
+{
+ struct mvpp2_port *port = arg;
+
+ mvpp2_write(port->priv, MVPP2_ISR_RX_TX_MASK_REG(port->id), 0);
+}
+
+/* Unmask the current CPU's Rx/Tx interrupts */
+static void mvpp2_interrupts_unmask(void *arg)
+{
+ struct mvpp2_port *port = arg;
+
+ mvpp2_write(port->priv, MVPP2_ISR_RX_TX_MASK_REG(port->id),
+ (MVPP2_CAUSE_MISC_SUM_MASK |
+ MVPP2_CAUSE_TXQ_OCCUP_DESC_ALL_MASK |
+ MVPP2_CAUSE_RXQ_OCCUP_DESC_ALL_MASK));
+}
+
+/* Port configuration routines */
+
+static void mvpp2_port_mii_set(struct mvpp2_port *port)
+{
+ u32 val;
+
+ val = readl(port->base + MVPP2_GMAC_CTRL_2_REG);
+
+ switch (port->phy_interface) {
+ case PHY_INTERFACE_MODE_SGMII:
+ val |= MVPP2_GMAC_INBAND_AN_MASK;
+ break;
+ case PHY_INTERFACE_MODE_RGMII:
+ val |= MVPP2_GMAC_PORT_RGMII_MASK;
+ default:
+ val &= ~MVPP2_GMAC_PCS_ENABLE_MASK;
+ }
+
+ writel(val, port->base + MVPP2_GMAC_CTRL_2_REG);
+}
+
+static void mvpp2_port_fc_adv_enable(struct mvpp2_port *port)
+{
+ u32 val;
+
+ val = readl(port->base + MVPP2_GMAC_AUTONEG_CONFIG);
+ val |= MVPP2_GMAC_FC_ADV_EN;
+ writel(val, port->base + MVPP2_GMAC_AUTONEG_CONFIG);
+}
+
+static void mvpp2_port_enable(struct mvpp2_port *port)
+{
+ u32 val;
+
+ val = readl(port->base + MVPP2_GMAC_CTRL_0_REG);
+ val |= MVPP2_GMAC_PORT_EN_MASK;
+ val |= MVPP2_GMAC_MIB_CNTR_EN_MASK;
+ writel(val, port->base + MVPP2_GMAC_CTRL_0_REG);
+}
+
+static void mvpp2_port_disable(struct mvpp2_port *port)
+{
+ u32 val;
+
+ val = readl(port->base + MVPP2_GMAC_CTRL_0_REG);
+ val &= ~(MVPP2_GMAC_PORT_EN_MASK);
+ writel(val, port->base + MVPP2_GMAC_CTRL_0_REG);
+}
+
+/* Set IEEE 802.3x Flow Control Xon Packet Transmission Mode */
+static void mvpp2_port_periodic_xon_disable(struct mvpp2_port *port)
+{
+ u32 val;
+
+ val = readl(port->base + MVPP2_GMAC_CTRL_1_REG) &
+ ~MVPP2_GMAC_PERIODIC_XON_EN_MASK;
+ writel(val, port->base + MVPP2_GMAC_CTRL_1_REG);
+}
+
+/* Configure loopback port */
+static void mvpp2_port_loopback_set(struct mvpp2_port *port)
+{
+ u32 val;
+
+ val = readl(port->base + MVPP2_GMAC_CTRL_1_REG);
+
+ if (port->speed == 1000)
+ val |= MVPP2_GMAC_GMII_LB_EN_MASK;
+ else
+ val &= ~MVPP2_GMAC_GMII_LB_EN_MASK;
+
+ if (port->phy_interface == PHY_INTERFACE_MODE_SGMII)
+ val |= MVPP2_GMAC_PCS_LB_EN_MASK;
+ else
+ val &= ~MVPP2_GMAC_PCS_LB_EN_MASK;
+
+ writel(val, port->base + MVPP2_GMAC_CTRL_1_REG);
+}
+
+static void mvpp2_port_reset(struct mvpp2_port *port)
+{
+ u32 val;
+
+ val = readl(port->base + MVPP2_GMAC_CTRL_2_REG) &
+ ~MVPP2_GMAC_PORT_RESET_MASK;
+ writel(val, port->base + MVPP2_GMAC_CTRL_2_REG);
+
+ while (readl(port->base + MVPP2_GMAC_CTRL_2_REG) &
+ MVPP2_GMAC_PORT_RESET_MASK)
+ continue;
+}
+
+/* Change maximum receive size of the port */
+static inline void mvpp2_gmac_max_rx_size_set(struct mvpp2_port *port)
+{
+ u32 val;
+
+ val = readl(port->base + MVPP2_GMAC_CTRL_0_REG);
+ val &= ~MVPP2_GMAC_MAX_RX_SIZE_MASK;
+ val |= (((port->pkt_size - MVPP2_MH_SIZE) / 2) <<
+ MVPP2_GMAC_MAX_RX_SIZE_OFFS);
+ writel(val, port->base + MVPP2_GMAC_CTRL_0_REG);
+}
+
+/* Set defaults to the MVPP2 port */
+static void mvpp2_defaults_set(struct mvpp2_port *port)
+{
+ int tx_port_num, val, queue, ptxq, lrxq;
+
+ /* Configure port to loopback if needed */
+ if (port->flags & MVPP2_F_LOOPBACK)
+ mvpp2_port_loopback_set(port);
+
+ /* Update TX FIFO MIN Threshold */
+ val = readl(port->base + MVPP2_GMAC_PORT_FIFO_CFG_1_REG);
+ val &= ~MVPP2_GMAC_TX_FIFO_MIN_TH_ALL_MASK;
+ /* Min. TX threshold must be less than minimal packet length */
+ val |= MVPP2_GMAC_TX_FIFO_MIN_TH_MASK(64 - 4 - 2);
+ writel(val, port->base + MVPP2_GMAC_PORT_FIFO_CFG_1_REG);
+
+ /* Disable Legacy WRR, Disable EJP, Release from reset */
+ tx_port_num = mvpp2_egress_port(port);
+ mvpp2_write(port->priv, MVPP2_TXP_SCHED_PORT_INDEX_REG,
+ tx_port_num);
+ mvpp2_write(port->priv, MVPP2_TXP_SCHED_CMD_1_REG, 0);
+
+ /* Close bandwidth for all queues */
+ for (queue = 0; queue < MVPP2_MAX_TXQ; queue++) {
+ ptxq = mvpp2_txq_phys(port->id, queue);
+ mvpp2_write(port->priv,
+ MVPP2_TXQ_SCHED_TOKEN_CNTR_REG(ptxq), 0);
+ }
+
+ /* Set refill period to 1 usec, refill tokens
+ * and bucket size to maximum
+ */
+ mvpp2_write(port->priv, MVPP2_TXP_SCHED_PERIOD_REG,
+ port->priv->tclk / USEC_PER_SEC);
+ val = mvpp2_read(port->priv, MVPP2_TXP_SCHED_REFILL_REG);
+ val &= ~MVPP2_TXP_REFILL_PERIOD_ALL_MASK;
+ val |= MVPP2_TXP_REFILL_PERIOD_MASK(1);
+ val |= MVPP2_TXP_REFILL_TOKENS_ALL_MASK;
+ mvpp2_write(port->priv, MVPP2_TXP_SCHED_REFILL_REG, val);
+ val = MVPP2_TXP_TOKEN_SIZE_MAX;
+ mvpp2_write(port->priv, MVPP2_TXP_SCHED_TOKEN_SIZE_REG, val);
+
+ /* Set MaximumLowLatencyPacketSize value to 256 */
+ mvpp2_write(port->priv, MVPP2_RX_CTRL_REG(port->id),
+ MVPP2_RX_USE_PSEUDO_FOR_CSUM_MASK |
+ MVPP2_RX_LOW_LATENCY_PKT_SIZE(256));
+
+ /* Enable Rx cache snoop */
+ for (lrxq = 0; lrxq < rxq_number; lrxq++) {
+ queue = port->rxqs[lrxq]->id;
+ val = mvpp2_read(port->priv, MVPP2_RXQ_CONFIG_REG(queue));
+ val |= MVPP2_SNOOP_PKT_SIZE_MASK |
+ MVPP2_SNOOP_BUF_HDR_MASK;
+ mvpp2_write(port->priv, MVPP2_RXQ_CONFIG_REG(queue), val);
+ }
+
+ /* At default, mask all interrupts to all present cpus */
+ mvpp2_interrupts_disable(port);
+}
+
+/* Enable/disable receiving packets */
+static void mvpp2_ingress_enable(struct mvpp2_port *port)
+{
+ u32 val;
+ int lrxq, queue;
+
+ for (lrxq = 0; lrxq < rxq_number; lrxq++) {
+ queue = port->rxqs[lrxq]->id;
+ val = mvpp2_read(port->priv, MVPP2_RXQ_CONFIG_REG(queue));
+ val &= ~MVPP2_RXQ_DISABLE_MASK;
+ mvpp2_write(port->priv, MVPP2_RXQ_CONFIG_REG(queue), val);
+ }
+}
+
+static void mvpp2_ingress_disable(struct mvpp2_port *port)
+{
+ u32 val;
+ int lrxq, queue;
+
+ for (lrxq = 0; lrxq < rxq_number; lrxq++) {
+ queue = port->rxqs[lrxq]->id;
+ val = mvpp2_read(port->priv, MVPP2_RXQ_CONFIG_REG(queue));
+ val |= MVPP2_RXQ_DISABLE_MASK;
+ mvpp2_write(port->priv, MVPP2_RXQ_CONFIG_REG(queue), val);
+ }
+}
+
+/* Enable transmit via physical egress queue
+ * - HW starts take descriptors from DRAM
+ */
+static void mvpp2_egress_enable(struct mvpp2_port *port)
+{
+ u32 qmap;
+ int queue;
+ int tx_port_num = mvpp2_egress_port(port);
+
+ /* Enable all initialized TXs. */
+ qmap = 0;
+ for (queue = 0; queue < txq_number; queue++) {
+ struct mvpp2_tx_queue *txq = port->txqs[queue];
+
+ if (txq->descs != NULL)
+ qmap |= (1 << queue);
+ }
+
+ mvpp2_write(port->priv, MVPP2_TXP_SCHED_PORT_INDEX_REG, tx_port_num);
+ mvpp2_write(port->priv, MVPP2_TXP_SCHED_Q_CMD_REG, qmap);
+}
+
+/* Disable transmit via physical egress queue
+ * - HW doesn't take descriptors from DRAM
+ */
+static void mvpp2_egress_disable(struct mvpp2_port *port)
+{
+ u32 reg_data;
+ int delay;
+ int tx_port_num = mvpp2_egress_port(port);
+
+ /* Issue stop command for active channels only */
+ mvpp2_write(port->priv, MVPP2_TXP_SCHED_PORT_INDEX_REG, tx_port_num);
+ reg_data = (mvpp2_read(port->priv, MVPP2_TXP_SCHED_Q_CMD_REG)) &
+ MVPP2_TXP_SCHED_ENQ_MASK;
+ if (reg_data != 0)
+ mvpp2_write(port->priv, MVPP2_TXP_SCHED_Q_CMD_REG,
+ (reg_data << MVPP2_TXP_SCHED_DISQ_OFFSET));
+
+ /* Wait for all Tx activity to terminate. */
+ delay = 0;
+ do {
+ if (delay >= MVPP2_TX_DISABLE_TIMEOUT_MSEC) {
+ netdev_warn(port->dev,
+ "Tx stop timed out, status=0x%08x\n",
+ reg_data);
+ break;
+ }
+ mdelay(1);
+ delay++;
+
+ /* Check port TX Command register that all
+ * Tx queues are stopped
+ */
+ reg_data = mvpp2_read(port->priv, MVPP2_TXP_SCHED_Q_CMD_REG);
+ } while (reg_data & MVPP2_TXP_SCHED_ENQ_MASK);
+}
+
+/* Rx descriptors helper methods */
+
+/* Get number of Rx descriptors occupied by received packets */
+static inline int
+mvpp2_rxq_received(struct mvpp2_port *port, int rxq_id)
+{
+ u32 val = mvpp2_read(port->priv, MVPP2_RXQ_STATUS_REG(rxq_id));
+
+ return val & MVPP2_RXQ_OCCUPIED_MASK;
+}
+
+/* Update Rx queue status with the number of occupied and available
+ * Rx descriptor slots.
+ */
+static inline void
+mvpp2_rxq_status_update(struct mvpp2_port *port, int rxq_id,
+ int used_count, int free_count)
+{
+ /* Decrement the number of used descriptors and increment count
+ * increment the number of free descriptors.
+ */
+ u32 val = used_count | (free_count << MVPP2_RXQ_NUM_NEW_OFFSET);
+
+ mvpp2_write(port->priv, MVPP2_RXQ_STATUS_UPDATE_REG(rxq_id), val);
+}
+
+/* Get pointer to next RX descriptor to be processed by SW */
+static inline struct mvpp2_rx_desc *
+mvpp2_rxq_next_desc_get(struct mvpp2_rx_queue *rxq)
+{
+ int rx_desc = rxq->next_desc_to_proc;
+
+ rxq->next_desc_to_proc = MVPP2_QUEUE_NEXT_DESC(rxq, rx_desc);
+ prefetch(rxq->descs + rxq->next_desc_to_proc);
+ return rxq->descs + rx_desc;
+}
+
+/* Set rx queue offset */
+static void mvpp2_rxq_offset_set(struct mvpp2_port *port,
+ int prxq, int offset)
+{
+ u32 val;
+
+ /* Convert offset from bytes to units of 32 bytes */
+ offset = offset >> 5;
+
+ val = mvpp2_read(port->priv, MVPP2_RXQ_CONFIG_REG(prxq));
+ val &= ~MVPP2_RXQ_PACKET_OFFSET_MASK;
+
+ /* Offset is in */
+ val |= ((offset << MVPP2_RXQ_PACKET_OFFSET_OFFS) &
+ MVPP2_RXQ_PACKET_OFFSET_MASK);
+
+ mvpp2_write(port->priv, MVPP2_RXQ_CONFIG_REG(prxq), val);
+}
+
+/* Obtain BM cookie information from descriptor */
+static u32 mvpp2_bm_cookie_build(struct mvpp2_rx_desc *rx_desc)
+{
+ int pool = (rx_desc->status & MVPP2_RXD_BM_POOL_ID_MASK) >>
+ MVPP2_RXD_BM_POOL_ID_OFFS;
+ int cpu = smp_processor_id();
+
+ return ((pool & 0xFF) << MVPP2_BM_COOKIE_POOL_OFFS) |
+ ((cpu & 0xFF) << MVPP2_BM_COOKIE_CPU_OFFS);
+}
+
+/* Tx descriptors helper methods */
+
+/* Get number of Tx descriptors waiting to be transmitted by HW */
+static int mvpp2_txq_pend_desc_num_get(struct mvpp2_port *port,
+ struct mvpp2_tx_queue *txq)
+{
+ u32 val;
+
+ mvpp2_write(port->priv, MVPP2_TXQ_NUM_REG, txq->id);
+ val = mvpp2_read(port->priv, MVPP2_TXQ_PENDING_REG);
+
+ return val & MVPP2_TXQ_PENDING_MASK;
+}
+
+/* Get pointer to next Tx descriptor to be processed (send) by HW */
+static struct mvpp2_tx_desc *
+mvpp2_txq_next_desc_get(struct mvpp2_tx_queue *txq)
+{
+ int tx_desc = txq->next_desc_to_proc;
+
+ txq->next_desc_to_proc = MVPP2_QUEUE_NEXT_DESC(txq, tx_desc);
+ return txq->descs + tx_desc;
+}
+
+/* Update HW with number of aggregated Tx descriptors to be sent */
+static void mvpp2_aggr_txq_pend_desc_add(struct mvpp2_port *port, int pending)
+{
+ /* aggregated access - relevant TXQ number is written in TX desc */
+ mvpp2_write(port->priv, MVPP2_AGGR_TXQ_UPDATE_REG, pending);
+}
+
+
+/* Check if there are enough free descriptors in aggregated txq.
+ * If not, update the number of occupied descriptors and repeat the check.
+ */
+static int mvpp2_aggr_desc_num_check(struct mvpp2 *priv,
+ struct mvpp2_tx_queue *aggr_txq, int num)
+{
+ if ((aggr_txq->count + num) > aggr_txq->size) {
+ /* Update number of occupied aggregated Tx descriptors */
+ int cpu = smp_processor_id();
+ u32 val = mvpp2_read(priv, MVPP2_AGGR_TXQ_STATUS_REG(cpu));
+
+ aggr_txq->count = val & MVPP2_AGGR_TXQ_PENDING_MASK;
+ }
+
+ if ((aggr_txq->count + num) > aggr_txq->size)
+ return -ENOMEM;
+
+ return 0;
+}
+
+/* Reserved Tx descriptors allocation request */
+static int mvpp2_txq_alloc_reserved_desc(struct mvpp2 *priv,
+ struct mvpp2_tx_queue *txq, int num)
+{
+ u32 val;
+
+ val = (txq->id << MVPP2_TXQ_RSVD_REQ_Q_OFFSET) | num;
+ mvpp2_write(priv, MVPP2_TXQ_RSVD_REQ_REG, val);
+
+ val = mvpp2_read(priv, MVPP2_TXQ_RSVD_RSLT_REG);
+
+ return val & MVPP2_TXQ_RSVD_RSLT_MASK;
+}
+
+/* Check if there are enough reserved descriptors for transmission.
+ * If not, request chunk of reserved descriptors and check again.
+ */
+static int mvpp2_txq_reserved_desc_num_proc(struct mvpp2 *priv,
+ struct mvpp2_tx_queue *txq,
+ struct mvpp2_txq_pcpu *txq_pcpu,
+ int num)
+{
+ int req, cpu, desc_count;
+
+ if (txq_pcpu->reserved_num >= num)
+ return 0;
+
+ /* Not enough descriptors reserved! Update the reserved descriptor
+ * count and check again.
+ */
+
+ desc_count = 0;
+ /* Compute total of used descriptors */
+ for_each_present_cpu(cpu) {
+ struct mvpp2_txq_pcpu *txq_pcpu_aux;
+
+ txq_pcpu_aux = per_cpu_ptr(txq->pcpu, cpu);
+ desc_count += txq_pcpu_aux->count;
+ desc_count += txq_pcpu_aux->reserved_num;
+ }
+
+ req = max(MVPP2_CPU_DESC_CHUNK, num - txq_pcpu->reserved_num);
+ desc_count += req;
+
+ if (desc_count >
+ (txq->size - (num_present_cpus() * MVPP2_CPU_DESC_CHUNK)))
+ return -ENOMEM;
+
+ txq_pcpu->reserved_num += mvpp2_txq_alloc_reserved_desc(priv, txq, req);
+
+ /* OK, the descriptor cound has been updated: check again. */
+ if (txq_pcpu->reserved_num < num)
+ return -ENOMEM;
+ return 0;
+}
+
+/* Release the last allocated Tx descriptor. Useful to handle DMA
+ * mapping failures in the Tx path.
+ */
+static void mvpp2_txq_desc_put(struct mvpp2_tx_queue *txq)
+{
+ if (txq->next_desc_to_proc == 0)
+ txq->next_desc_to_proc = txq->last_desc - 1;
+ else
+ txq->next_desc_to_proc--;
+}
+
+/* Set Tx descriptors fields relevant for CSUM calculation */
+static u32 mvpp2_txq_desc_csum(int l3_offs, int l3_proto,
+ int ip_hdr_len, int l4_proto)
+{
+ u32 command;
+
+ /* fields: L3_offset, IP_hdrlen, L3_type, G_IPv4_chk,
+ * G_L4_chk, L4_type required only for checksum calculation
+ */
+ command = (l3_offs << MVPP2_TXD_L3_OFF_SHIFT);
+ command |= (ip_hdr_len << MVPP2_TXD_IP_HLEN_SHIFT);
+ command |= MVPP2_TXD_IP_CSUM_DISABLE;
+
+ if (l3_proto == swab16(ETH_P_IP)) {
+ command &= ~MVPP2_TXD_IP_CSUM_DISABLE; /* enable IPv4 csum */
+ command &= ~MVPP2_TXD_L3_IP6; /* enable IPv4 */
+ } else {
+ command |= MVPP2_TXD_L3_IP6; /* enable IPv6 */
+ }
+
+ if (l4_proto == IPPROTO_TCP) {
+ command &= ~MVPP2_TXD_L4_UDP; /* enable TCP */
+ command &= ~MVPP2_TXD_L4_CSUM_FRAG; /* generate L4 csum */
+ } else if (l4_proto == IPPROTO_UDP) {
+ command |= MVPP2_TXD_L4_UDP; /* enable UDP */
+ command &= ~MVPP2_TXD_L4_CSUM_FRAG; /* generate L4 csum */
+ } else {
+ command |= MVPP2_TXD_L4_CSUM_NOT;
+ }
+
+ return command;
+}
+
+/* Get number of sent descriptors and decrement counter.
+ * The number of sent descriptors is returned.
+ * Per-CPU access
+ */
+static inline int mvpp2_txq_sent_desc_proc(struct mvpp2_port *port,
+ struct mvpp2_tx_queue *txq)
+{
+ u32 val;
+
+ /* Reading status reg resets transmitted descriptor counter */
+ val = mvpp2_read(port->priv, MVPP2_TXQ_SENT_REG(txq->id));
+
+ return (val & MVPP2_TRANSMITTED_COUNT_MASK) >>
+ MVPP2_TRANSMITTED_COUNT_OFFSET;
+}
+
+static void mvpp2_txq_sent_counter_clear(void *arg)
+{
+ struct mvpp2_port *port = arg;
+ int queue;
+
+ for (queue = 0; queue < txq_number; queue++) {
+ int id = port->txqs[queue]->id;
+
+ mvpp2_read(port->priv, MVPP2_TXQ_SENT_REG(id));
+ }
+}
+
+/* Set max sizes for Tx queues */
+static void mvpp2_txp_max_tx_size_set(struct mvpp2_port *port)
+{
+ u32 val, size, mtu;
+ int txq, tx_port_num;
+
+ mtu = port->pkt_size * 8;
+ if (mtu > MVPP2_TXP_MTU_MAX)
+ mtu = MVPP2_TXP_MTU_MAX;
+
+ /* WA for wrong Token bucket update: Set MTU value = 3*real MTU value */
+ mtu = 3 * mtu;
+
+ /* Indirect access to registers */
+ tx_port_num = mvpp2_egress_port(port);
+ mvpp2_write(port->priv, MVPP2_TXP_SCHED_PORT_INDEX_REG, tx_port_num);
+
+ /* Set MTU */
+ val = mvpp2_read(port->priv, MVPP2_TXP_SCHED_MTU_REG);
+ val &= ~MVPP2_TXP_MTU_MAX;
+ val |= mtu;
+ mvpp2_write(port->priv, MVPP2_TXP_SCHED_MTU_REG, val);
+
+ /* TXP token size and all TXQs token size must be larger that MTU */
+ val = mvpp2_read(port->priv, MVPP2_TXP_SCHED_TOKEN_SIZE_REG);
+ size = val & MVPP2_TXP_TOKEN_SIZE_MAX;
+ if (size < mtu) {
+ size = mtu;
+ val &= ~MVPP2_TXP_TOKEN_SIZE_MAX;
+ val |= size;
+ mvpp2_write(port->priv, MVPP2_TXP_SCHED_TOKEN_SIZE_REG, val);
+ }
+
+ for (txq = 0; txq < txq_number; txq++) {
+ val = mvpp2_read(port->priv,
+ MVPP2_TXQ_SCHED_TOKEN_SIZE_REG(txq));
+ size = val & MVPP2_TXQ_TOKEN_SIZE_MAX;
+
+ if (size < mtu) {
+ size = mtu;
+ val &= ~MVPP2_TXQ_TOKEN_SIZE_MAX;
+ val |= size;
+ mvpp2_write(port->priv,
+ MVPP2_TXQ_SCHED_TOKEN_SIZE_REG(txq),
+ val);
+ }
+ }
+}
+
+/* Set the number of packets that will be received before Rx interrupt
+ * will be generated by HW.
+ */
+static void mvpp2_rx_pkts_coal_set(struct mvpp2_port *port,
+ struct mvpp2_rx_queue *rxq, u32 pkts)
+{
+ u32 val;
+
+ val = (pkts & MVPP2_OCCUPIED_THRESH_MASK);
+ mvpp2_write(port->priv, MVPP2_RXQ_NUM_REG, rxq->id);
+ mvpp2_write(port->priv, MVPP2_RXQ_THRESH_REG, val);
+
+ rxq->pkts_coal = pkts;
+}
+
+/* Set the time delay in usec before Rx interrupt */
+static void mvpp2_rx_time_coal_set(struct mvpp2_port *port,
+ struct mvpp2_rx_queue *rxq, u32 usec)
+{
+ u32 val;
+
+ val = (port->priv->tclk / USEC_PER_SEC) * usec;
+ mvpp2_write(port->priv, MVPP2_ISR_RX_THRESHOLD_REG(rxq->id), val);
+
+ rxq->time_coal = usec;
+}
+
+/* Set threshold for TX_DONE pkts coalescing */
+static void mvpp2_tx_done_pkts_coal_set(void *arg)
+{
+ struct mvpp2_port *port = arg;
+ int queue;
+ u32 val;
+
+ for (queue = 0; queue < txq_number; queue++) {
+ struct mvpp2_tx_queue *txq = port->txqs[queue];
+
+ val = (txq->done_pkts_coal << MVPP2_TRANSMITTED_THRESH_OFFSET) &
+ MVPP2_TRANSMITTED_THRESH_MASK;
+ mvpp2_write(port->priv, MVPP2_TXQ_NUM_REG, txq->id);
+ mvpp2_write(port->priv, MVPP2_TXQ_THRESH_REG, val);
+ }
+}
+
+/* Free Tx queue skbuffs */
+static void mvpp2_txq_bufs_free(struct mvpp2_port *port,
+ struct mvpp2_tx_queue *txq,
+ struct mvpp2_txq_pcpu *txq_pcpu, int num)
+{
+ int i;
+
+ for (i = 0; i < num; i++) {
+ struct mvpp2_tx_desc *tx_desc = txq->descs +
+ txq_pcpu->txq_get_index;
+ struct sk_buff *skb = txq_pcpu->tx_skb[txq_pcpu->txq_get_index];
+
+ mvpp2_txq_inc_get(txq_pcpu);
+
+ if (!skb)
+ continue;
+
+ dma_unmap_single(port->dev->dev.parent, tx_desc->buf_phys_addr,
+ tx_desc->data_size, DMA_TO_DEVICE);
+ dev_kfree_skb_any(skb);
+ }
+}
+
+static inline struct mvpp2_rx_queue *mvpp2_get_rx_queue(struct mvpp2_port *port,
+ u32 cause)
+{
+ int queue = fls(cause) - 1;
+
+ return port->rxqs[queue];
+}
+
+static inline struct mvpp2_tx_queue *mvpp2_get_tx_queue(struct mvpp2_port *port,
+ u32 cause)
+{
+ int queue = fls(cause >> 16) - 1;
+
+ return port->txqs[queue];
+}
+
+/* Handle end of transmission */
+static void mvpp2_txq_done(struct mvpp2_port *port, struct mvpp2_tx_queue *txq,
+ struct mvpp2_txq_pcpu *txq_pcpu)
+{
+ struct netdev_queue *nq = netdev_get_tx_queue(port->dev, txq->log_id);
+ int tx_done;
+
+ if (txq_pcpu->cpu != smp_processor_id())
+ netdev_err(port->dev, "wrong cpu on the end of Tx processing\n");
+
+ tx_done = mvpp2_txq_sent_desc_proc(port, txq);
+ if (!tx_done)
+ return;
+ mvpp2_txq_bufs_free(port, txq, txq_pcpu, tx_done);
+
+ txq_pcpu->count -= tx_done;
+
+ if (netif_tx_queue_stopped(nq))
+ if (txq_pcpu->size - txq_pcpu->count >= MAX_SKB_FRAGS + 1)
+ netif_tx_wake_queue(nq);
+}
+
+/* Rx/Tx queue initialization/cleanup methods */
+
+/* Allocate and initialize descriptors for aggr TXQ */
+static int mvpp2_aggr_txq_init(struct platform_device *pdev,
+ struct mvpp2_tx_queue *aggr_txq,
+ int desc_num, int cpu,
+ struct mvpp2 *priv)
+{
+ /* Allocate memory for TX descriptors */
+ aggr_txq->descs = dma_alloc_coherent(&pdev->dev,
+ desc_num * MVPP2_DESC_ALIGNED_SIZE,
+ &aggr_txq->descs_phys, GFP_KERNEL);
+ if (!aggr_txq->descs)
+ return -ENOMEM;
+
+ /* Make sure descriptor address is cache line size aligned */
+ BUG_ON(aggr_txq->descs !=
+ PTR_ALIGN(aggr_txq->descs, MVPP2_CPU_D_CACHE_LINE_SIZE));
+
+ aggr_txq->last_desc = aggr_txq->size - 1;
+
+ /* Aggr TXQ no reset WA */
+ aggr_txq->next_desc_to_proc = mvpp2_read(priv,
+ MVPP2_AGGR_TXQ_INDEX_REG(cpu));
+
+ /* Set Tx descriptors queue starting address */
+ /* indirect access */
+ mvpp2_write(priv, MVPP2_AGGR_TXQ_DESC_ADDR_REG(cpu),
+ aggr_txq->descs_phys);
+ mvpp2_write(priv, MVPP2_AGGR_TXQ_DESC_SIZE_REG(cpu), desc_num);
+
+ return 0;
+}
+
+/* Create a specified Rx queue */
+static int mvpp2_rxq_init(struct mvpp2_port *port,
+ struct mvpp2_rx_queue *rxq)
+
+{
+ rxq->size = port->rx_ring_size;
+
+ /* Allocate memory for RX descriptors */
+ rxq->descs = dma_alloc_coherent(port->dev->dev.parent,
+ rxq->size * MVPP2_DESC_ALIGNED_SIZE,
+ &rxq->descs_phys, GFP_KERNEL);
+ if (!rxq->descs)
+ return -ENOMEM;
+
+ BUG_ON(rxq->descs !=
+ PTR_ALIGN(rxq->descs, MVPP2_CPU_D_CACHE_LINE_SIZE));
+
+ rxq->last_desc = rxq->size - 1;
+
+ /* Zero occupied and non-occupied counters - direct access */
+ mvpp2_write(port->priv, MVPP2_RXQ_STATUS_REG(rxq->id), 0);
+
+ /* Set Rx descriptors queue starting address - indirect access */
+ mvpp2_write(port->priv, MVPP2_RXQ_NUM_REG, rxq->id);
+ mvpp2_write(port->priv, MVPP2_RXQ_DESC_ADDR_REG, rxq->descs_phys);
+ mvpp2_write(port->priv, MVPP2_RXQ_DESC_SIZE_REG, rxq->size);
+ mvpp2_write(port->priv, MVPP2_RXQ_INDEX_REG, 0);
+
+ /* Set Offset */
+ mvpp2_rxq_offset_set(port, rxq->id, NET_SKB_PAD);
+
+ /* Set coalescing pkts and time */
+ mvpp2_rx_pkts_coal_set(port, rxq, rxq->pkts_coal);
+ mvpp2_rx_time_coal_set(port, rxq, rxq->time_coal);
+
+ /* Add number of descriptors ready for receiving packets */
+ mvpp2_rxq_status_update(port, rxq->id, 0, rxq->size);
+
+ return 0;
+}
+
+/* Push packets received by the RXQ to BM pool */
+static void mvpp2_rxq_drop_pkts(struct mvpp2_port *port,
+ struct mvpp2_rx_queue *rxq)
+{
+ int rx_received, i;
+
+ rx_received = mvpp2_rxq_received(port, rxq->id);
+ if (!rx_received)
+ return;
+
+ for (i = 0; i < rx_received; i++) {
+ struct mvpp2_rx_desc *rx_desc = mvpp2_rxq_next_desc_get(rxq);
+ u32 bm = mvpp2_bm_cookie_build(rx_desc);
+
+ mvpp2_pool_refill(port, bm, rx_desc->buf_phys_addr,
+ rx_desc->buf_cookie);
+ }
+ mvpp2_rxq_status_update(port, rxq->id, rx_received, rx_received);
+}
+
+/* Cleanup Rx queue */
+static void mvpp2_rxq_deinit(struct mvpp2_port *port,
+ struct mvpp2_rx_queue *rxq)
+{
+ mvpp2_rxq_drop_pkts(port, rxq);
+
+ if (rxq->descs)
+ dma_free_coherent(port->dev->dev.parent,
+ rxq->size * MVPP2_DESC_ALIGNED_SIZE,
+ rxq->descs,
+ rxq->descs_phys);
+
+ rxq->descs = NULL;
+ rxq->last_desc = 0;
+ rxq->next_desc_to_proc = 0;
+ rxq->descs_phys = 0;
+
+ /* Clear Rx descriptors queue starting address and size;
+ * free descriptor number
+ */
+ mvpp2_write(port->priv, MVPP2_RXQ_STATUS_REG(rxq->id), 0);
+ mvpp2_write(port->priv, MVPP2_RXQ_NUM_REG, rxq->id);
+ mvpp2_write(port->priv, MVPP2_RXQ_DESC_ADDR_REG, 0);
+ mvpp2_write(port->priv, MVPP2_RXQ_DESC_SIZE_REG, 0);
+}
+
+/* Create and initialize a Tx queue */
+static int mvpp2_txq_init(struct mvpp2_port *port,
+ struct mvpp2_tx_queue *txq)
+{
+ u32 val;
+ int cpu, desc, desc_per_txq, tx_port_num;
+ struct mvpp2_txq_pcpu *txq_pcpu;
+
+ txq->size = port->tx_ring_size;
+
+ /* Allocate memory for Tx descriptors */
+ txq->descs = dma_alloc_coherent(port->dev->dev.parent,
+ txq->size * MVPP2_DESC_ALIGNED_SIZE,
+ &txq->descs_phys, GFP_KERNEL);
+ if (!txq->descs)
+ return -ENOMEM;
+
+ /* Make sure descriptor address is cache line size aligned */
+ BUG_ON(txq->descs !=
+ PTR_ALIGN(txq->descs, MVPP2_CPU_D_CACHE_LINE_SIZE));
+
+ txq->last_desc = txq->size - 1;
+
+ /* Set Tx descriptors queue starting address - indirect access */
+ mvpp2_write(port->priv, MVPP2_TXQ_NUM_REG, txq->id);
+ mvpp2_write(port->priv, MVPP2_TXQ_DESC_ADDR_REG, txq->descs_phys);
+ mvpp2_write(port->priv, MVPP2_TXQ_DESC_SIZE_REG, txq->size &
+ MVPP2_TXQ_DESC_SIZE_MASK);
+ mvpp2_write(port->priv, MVPP2_TXQ_INDEX_REG, 0);
+ mvpp2_write(port->priv, MVPP2_TXQ_RSVD_CLR_REG,
+ txq->id << MVPP2_TXQ_RSVD_CLR_OFFSET);
+ val = mvpp2_read(port->priv, MVPP2_TXQ_PENDING_REG);
+ val &= ~MVPP2_TXQ_PENDING_MASK;
+ mvpp2_write(port->priv, MVPP2_TXQ_PENDING_REG, val);
+
+ /* Calculate base address in prefetch buffer. We reserve 16 descriptors
+ * for each existing TXQ.
+ * TCONTS for PON port must be continuous from 0 to MVPP2_MAX_TCONT
+ * GBE ports assumed to be continious from 0 to MVPP2_MAX_PORTS
+ */
+ desc_per_txq = 16;
+ desc = (port->id * MVPP2_MAX_TXQ * desc_per_txq) +
+ (txq->log_id * desc_per_txq);
+
+ mvpp2_write(port->priv, MVPP2_TXQ_PREF_BUF_REG,
+ MVPP2_PREF_BUF_PTR(desc) | MVPP2_PREF_BUF_SIZE_16 |
+ MVPP2_PREF_BUF_THRESH(desc_per_txq/2));
+
+ /* WRR / EJP configuration - indirect access */
+ tx_port_num = mvpp2_egress_port(port);
+ mvpp2_write(port->priv, MVPP2_TXP_SCHED_PORT_INDEX_REG, tx_port_num);
+
+ val = mvpp2_read(port->priv, MVPP2_TXQ_SCHED_REFILL_REG(txq->log_id));
+ val &= ~MVPP2_TXQ_REFILL_PERIOD_ALL_MASK;
+ val |= MVPP2_TXQ_REFILL_PERIOD_MASK(1);
+ val |= MVPP2_TXQ_REFILL_TOKENS_ALL_MASK;
+ mvpp2_write(port->priv, MVPP2_TXQ_SCHED_REFILL_REG(txq->log_id), val);
+
+ val = MVPP2_TXQ_TOKEN_SIZE_MAX;
+ mvpp2_write(port->priv, MVPP2_TXQ_SCHED_TOKEN_SIZE_REG(txq->log_id),
+ val);
+
+ for_each_present_cpu(cpu) {
+ txq_pcpu = per_cpu_ptr(txq->pcpu, cpu);
+ txq_pcpu->size = txq->size;
+ txq_pcpu->tx_skb = kmalloc(txq_pcpu->size *
+ sizeof(*txq_pcpu->tx_skb),
+ GFP_KERNEL);
+ if (!txq_pcpu->tx_skb) {
+ dma_free_coherent(port->dev->dev.parent,
+ txq->size * MVPP2_DESC_ALIGNED_SIZE,
+ txq->descs, txq->descs_phys);
+ return -ENOMEM;
+ }
+
+ txq_pcpu->count = 0;
+ txq_pcpu->reserved_num = 0;
+ txq_pcpu->txq_put_index = 0;
+ txq_pcpu->txq_get_index = 0;
+ }
+
+ return 0;
+}
+
+/* Free allocated TXQ resources */
+static void mvpp2_txq_deinit(struct mvpp2_port *port,
+ struct mvpp2_tx_queue *txq)
+{
+ struct mvpp2_txq_pcpu *txq_pcpu;
+ int cpu;
+
+ for_each_present_cpu(cpu) {
+ txq_pcpu = per_cpu_ptr(txq->pcpu, cpu);
+ kfree(txq_pcpu->tx_skb);
+ }
+
+ if (txq->descs)
+ dma_free_coherent(port->dev->dev.parent,
+ txq->size * MVPP2_DESC_ALIGNED_SIZE,
+ txq->descs, txq->descs_phys);
+
+ txq->descs = NULL;
+ txq->last_desc = 0;
+ txq->next_desc_to_proc = 0;
+ txq->descs_phys = 0;
+
+ /* Set minimum bandwidth for disabled TXQs */
+ mvpp2_write(port->priv, MVPP2_TXQ_SCHED_TOKEN_CNTR_REG(txq->id), 0);
+
+ /* Set Tx descriptors queue starting address and size */
+ mvpp2_write(port->priv, MVPP2_TXQ_NUM_REG, txq->id);
+ mvpp2_write(port->priv, MVPP2_TXQ_DESC_ADDR_REG, 0);
+ mvpp2_write(port->priv, MVPP2_TXQ_DESC_SIZE_REG, 0);
+}
+
+/* Cleanup Tx ports */
+static void mvpp2_txq_clean(struct mvpp2_port *port, struct mvpp2_tx_queue *txq)
+{
+ struct mvpp2_txq_pcpu *txq_pcpu;
+ int delay, pending, cpu;
+ u32 val;
+
+ mvpp2_write(port->priv, MVPP2_TXQ_NUM_REG, txq->id);
+ val = mvpp2_read(port->priv, MVPP2_TXQ_PREF_BUF_REG);
+ val |= MVPP2_TXQ_DRAIN_EN_MASK;
+ mvpp2_write(port->priv, MVPP2_TXQ_PREF_BUF_REG, val);
+
+ /* The napi queue has been stopped so wait for all packets
+ * to be transmitted.
+ */
+ delay = 0;
+ do {
+ if (delay >= MVPP2_TX_PENDING_TIMEOUT_MSEC) {
+ netdev_warn(port->dev,
+ "port %d: cleaning queue %d timed out\n",
+ port->id, txq->log_id);
+ break;
+ }
+ mdelay(1);
+ delay++;
+
+ pending = mvpp2_txq_pend_desc_num_get(port, txq);
+ } while (pending);
+
+ val &= ~MVPP2_TXQ_DRAIN_EN_MASK;
+ mvpp2_write(port->priv, MVPP2_TXQ_PREF_BUF_REG, val);
+
+ for_each_present_cpu(cpu) {
+ txq_pcpu = per_cpu_ptr(txq->pcpu, cpu);
+
+ /* Release all packets */
+ mvpp2_txq_bufs_free(port, txq, txq_pcpu, txq_pcpu->count);
+
+ /* Reset queue */
+ txq_pcpu->count = 0;
+ txq_pcpu->txq_put_index = 0;
+ txq_pcpu->txq_get_index = 0;
+ }
+}
+
+/* Cleanup all Tx queues */
+static void mvpp2_cleanup_txqs(struct mvpp2_port *port)
+{
+ struct mvpp2_tx_queue *txq;
+ int queue;
+ u32 val;
+
+ val = mvpp2_read(port->priv, MVPP2_TX_PORT_FLUSH_REG);
+
+ /* Reset Tx ports and delete Tx queues */
+ val |= MVPP2_TX_PORT_FLUSH_MASK(port->id);
+ mvpp2_write(port->priv, MVPP2_TX_PORT_FLUSH_REG, val);
+
+ for (queue = 0; queue < txq_number; queue++) {
+ txq = port->txqs[queue];
+ mvpp2_txq_clean(port, txq);
+ mvpp2_txq_deinit(port, txq);
+ }
+
+ on_each_cpu(mvpp2_txq_sent_counter_clear, port, 1);
+
+ val &= ~MVPP2_TX_PORT_FLUSH_MASK(port->id);
+ mvpp2_write(port->priv, MVPP2_TX_PORT_FLUSH_REG, val);
+}
+
+/* Cleanup all Rx queues */
+static void mvpp2_cleanup_rxqs(struct mvpp2_port *port)
+{
+ int queue;
+
+ for (queue = 0; queue < rxq_number; queue++)
+ mvpp2_rxq_deinit(port, port->rxqs[queue]);
+}
+
+/* Init all Rx queues for port */
+static int mvpp2_setup_rxqs(struct mvpp2_port *port)
+{
+ int queue, err;
+
+ for (queue = 0; queue < rxq_number; queue++) {
+ err = mvpp2_rxq_init(port, port->rxqs[queue]);
+ if (err)
+ goto err_cleanup;
+ }
+ return 0;
+
+err_cleanup:
+ mvpp2_cleanup_rxqs(port);
+ return err;
+}
+
+/* Init all tx queues for port */
+static int mvpp2_setup_txqs(struct mvpp2_port *port)
+{
+ struct mvpp2_tx_queue *txq;
+ int queue, err;
+
+ for (queue = 0; queue < txq_number; queue++) {
+ txq = port->txqs[queue];
+ err = mvpp2_txq_init(port, txq);
+ if (err)
+ goto err_cleanup;
+ }
+
+ on_each_cpu(mvpp2_tx_done_pkts_coal_set, port, 1);
+ on_each_cpu(mvpp2_txq_sent_counter_clear, port, 1);
+ return 0;
+
+err_cleanup:
+ mvpp2_cleanup_txqs(port);
+ return err;
+}
+
+/* The callback for per-port interrupt */
+static irqreturn_t mvpp2_isr(int irq, void *dev_id)
+{
+ struct mvpp2_port *port = (struct mvpp2_port *)dev_id;
+
+ mvpp2_interrupts_disable(port);
+
+ napi_schedule(&port->napi);
+
+ return IRQ_HANDLED;
+}
+
+/* Adjust link */
+static void mvpp2_link_event(struct net_device *dev)
+{
+ struct mvpp2_port *port = netdev_priv(dev);
+ struct phy_device *phydev = port->phy_dev;
+ int status_change = 0;
+ u32 val;
+
+ if (phydev->link) {
+ if ((port->speed != phydev->speed) ||
+ (port->duplex != phydev->duplex)) {
+ u32 val;
+
+ val = readl(port->base + MVPP2_GMAC_AUTONEG_CONFIG);
+ val &= ~(MVPP2_GMAC_CONFIG_MII_SPEED |
+ MVPP2_GMAC_CONFIG_GMII_SPEED |
+ MVPP2_GMAC_CONFIG_FULL_DUPLEX |
+ MVPP2_GMAC_AN_SPEED_EN |
+ MVPP2_GMAC_AN_DUPLEX_EN);
+
+ if (phydev->duplex)
+ val |= MVPP2_GMAC_CONFIG_FULL_DUPLEX;
+
+ if (phydev->speed == SPEED_1000)
+ val |= MVPP2_GMAC_CONFIG_GMII_SPEED;
+ else if (phydev->speed == SPEED_100)
+ val |= MVPP2_GMAC_CONFIG_MII_SPEED;
+
+ writel(val, port->base + MVPP2_GMAC_AUTONEG_CONFIG);
+
+ port->duplex = phydev->duplex;
+ port->speed = phydev->speed;
+ }
+ }
+
+ if (phydev->link != port->link) {
+ if (!phydev->link) {
+ port->duplex = -1;
+ port->speed = 0;
+ }
+
+ port->link = phydev->link;
+ status_change = 1;
+ }
+
+ if (status_change) {
+ if (phydev->link) {
+ val = readl(port->base + MVPP2_GMAC_AUTONEG_CONFIG);
+ val |= (MVPP2_GMAC_FORCE_LINK_PASS |
+ MVPP2_GMAC_FORCE_LINK_DOWN);
+ writel(val, port->base + MVPP2_GMAC_AUTONEG_CONFIG);
+ mvpp2_egress_enable(port);
+ mvpp2_ingress_enable(port);
+ } else {
+ mvpp2_ingress_disable(port);
+ mvpp2_egress_disable(port);
+ }
+ phy_print_status(phydev);
+ }
+}
+
+/* Main RX/TX processing routines */
+
+/* Display more error info */
+static void mvpp2_rx_error(struct mvpp2_port *port,
+ struct mvpp2_rx_desc *rx_desc)
+{
+ u32 status = rx_desc->status;
+
+ switch (status & MVPP2_RXD_ERR_CODE_MASK) {
+ case MVPP2_RXD_ERR_CRC:
+ netdev_err(port->dev, "bad rx status %08x (crc error), size=%d\n",
+ status, rx_desc->data_size);
+ break;
+ case MVPP2_RXD_ERR_OVERRUN:
+ netdev_err(port->dev, "bad rx status %08x (overrun error), size=%d\n",
+ status, rx_desc->data_size);
+ break;
+ case MVPP2_RXD_ERR_RESOURCE:
+ netdev_err(port->dev, "bad rx status %08x (resource error), size=%d\n",
+ status, rx_desc->data_size);
+ break;
+ }
+}
+
+/* Handle RX checksum offload */
+static void mvpp2_rx_csum(struct mvpp2_port *port, u32 status,
+ struct sk_buff *skb)
+{
+ if (((status & MVPP2_RXD_L3_IP4) &&
+ !(status & MVPP2_RXD_IP4_HEADER_ERR)) ||
+ (status & MVPP2_RXD_L3_IP6))
+ if (((status & MVPP2_RXD_L4_UDP) ||
+ (status & MVPP2_RXD_L4_TCP)) &&
+ (status & MVPP2_RXD_L4_CSUM_OK)) {
+ skb->csum = 0;
+ skb->ip_summed = CHECKSUM_UNNECESSARY;
+ return;
+ }
+
+ skb->ip_summed = CHECKSUM_NONE;
+}
+
+/* Reuse skb if possible, or allocate a new skb and add it to BM pool */
+static int mvpp2_rx_refill(struct mvpp2_port *port,
+ struct mvpp2_bm_pool *bm_pool,
+ u32 bm, int is_recycle)
+{
+ struct sk_buff *skb;
+ dma_addr_t phys_addr;
+
+ if (is_recycle &&
+ (atomic_read(&bm_pool->in_use) < bm_pool->in_use_thresh))
+ return 0;
+
+ /* No recycle or too many buffers are in use, so allocate a new skb */
+ skb = mvpp2_skb_alloc(port, bm_pool, &phys_addr, GFP_ATOMIC);
+ if (!skb)
+ return -ENOMEM;
+
+ mvpp2_pool_refill(port, bm, (u32)phys_addr, (u32)skb);
+ atomic_dec(&bm_pool->in_use);
+ return 0;
+}
+
+/* Handle tx checksum */
+static u32 mvpp2_skb_tx_csum(struct mvpp2_port *port, struct sk_buff *skb)
+{
+ if (skb->ip_summed == CHECKSUM_PARTIAL) {
+ int ip_hdr_len = 0;
+ u8 l4_proto;
+
+ if (skb->protocol == htons(ETH_P_IP)) {
+ struct iphdr *ip4h = ip_hdr(skb);
+
+ /* Calculate IPv4 checksum and L4 checksum */
+ ip_hdr_len = ip4h->ihl;
+ l4_proto = ip4h->protocol;
+ } else if (skb->protocol == htons(ETH_P_IPV6)) {
+ struct ipv6hdr *ip6h = ipv6_hdr(skb);
+
+ /* Read l4_protocol from one of IPv6 extra headers */
+ if (skb_network_header_len(skb) > 0)
+ ip_hdr_len = (skb_network_header_len(skb) >> 2);
+ l4_proto = ip6h->nexthdr;
+ } else {
+ return MVPP2_TXD_L4_CSUM_NOT;
+ }
+
+ return mvpp2_txq_desc_csum(skb_network_offset(skb),
+ skb->protocol, ip_hdr_len, l4_proto);
+ }
+
+ return MVPP2_TXD_L4_CSUM_NOT | MVPP2_TXD_IP_CSUM_DISABLE;
+}
+
+static void mvpp2_buff_hdr_rx(struct mvpp2_port *port,
+ struct mvpp2_rx_desc *rx_desc)
+{
+ struct mvpp2_buff_hdr *buff_hdr;
+ struct sk_buff *skb;
+ u32 rx_status = rx_desc->status;
+ u32 buff_phys_addr;
+ u32 buff_virt_addr;
+ u32 buff_phys_addr_next;
+ u32 buff_virt_addr_next;
+ int mc_id;
+ int pool_id;
+
+ pool_id = (rx_status & MVPP2_RXD_BM_POOL_ID_MASK) >>
+ MVPP2_RXD_BM_POOL_ID_OFFS;
+ buff_phys_addr = rx_desc->buf_phys_addr;
+ buff_virt_addr = rx_desc->buf_cookie;
+
+ do {
+ skb = (struct sk_buff *)buff_virt_addr;
+ buff_hdr = (struct mvpp2_buff_hdr *)skb->head;
+
+ mc_id = MVPP2_B_HDR_INFO_MC_ID(buff_hdr->info);
+
+ buff_phys_addr_next = buff_hdr->next_buff_phys_addr;
+ buff_virt_addr_next = buff_hdr->next_buff_virt_addr;
+
+ /* Release buffer */
+ mvpp2_bm_pool_mc_put(port, pool_id, buff_phys_addr,
+ buff_virt_addr, mc_id);
+
+ buff_phys_addr = buff_phys_addr_next;
+ buff_virt_addr = buff_virt_addr_next;
+
+ } while (!MVPP2_B_HDR_INFO_IS_LAST(buff_hdr->info));
+}
+
+/* Main rx processing */
+static int mvpp2_rx(struct mvpp2_port *port, int rx_todo,
+ struct mvpp2_rx_queue *rxq)
+{
+ struct net_device *dev = port->dev;
+ int rx_received, rx_filled, i;
+ u32 rcvd_pkts = 0;
+ u32 rcvd_bytes = 0;
+
+ /* Get number of received packets and clamp the to-do */
+ rx_received = mvpp2_rxq_received(port, rxq->id);
+ if (rx_todo > rx_received)
+ rx_todo = rx_received;
+
+ rx_filled = 0;
+ for (i = 0; i < rx_todo; i++) {
+ struct mvpp2_rx_desc *rx_desc = mvpp2_rxq_next_desc_get(rxq);
+ struct mvpp2_bm_pool *bm_pool;
+ struct sk_buff *skb;
+ u32 bm, rx_status;
+ int pool, rx_bytes, err;
+
+ rx_filled++;
+ rx_status = rx_desc->status;
+ rx_bytes = rx_desc->data_size - MVPP2_MH_SIZE;
+
+ bm = mvpp2_bm_cookie_build(rx_desc);
+ pool = mvpp2_bm_cookie_pool_get(bm);
+ bm_pool = &port->priv->bm_pools[pool];
+ /* Check if buffer header is used */
+ if (rx_status & MVPP2_RXD_BUF_HDR) {
+ mvpp2_buff_hdr_rx(port, rx_desc);
+ continue;
+ }
+
+ /* In case of an error, release the requested buffer pointer
+ * to the Buffer Manager. This request process is controlled
+ * by the hardware, and the information about the buffer is
+ * comprised by the RX descriptor.
+ */
+ if (rx_status & MVPP2_RXD_ERR_SUMMARY) {
+ dev->stats.rx_errors++;
+ mvpp2_rx_error(port, rx_desc);
+ mvpp2_pool_refill(port, bm, rx_desc->buf_phys_addr,
+ rx_desc->buf_cookie);
+ continue;
+ }
+
+ skb = (struct sk_buff *)rx_desc->buf_cookie;
+
+ rcvd_pkts++;
+ rcvd_bytes += rx_bytes;
+ atomic_inc(&bm_pool->in_use);
+
+ skb_reserve(skb, MVPP2_MH_SIZE);
+ skb_put(skb, rx_bytes);
+ skb->protocol = eth_type_trans(skb, dev);
+ mvpp2_rx_csum(port, rx_status, skb);
+
+ napi_gro_receive(&port->napi, skb);
+
+ err = mvpp2_rx_refill(port, bm_pool, bm, 0);
+ if (err) {
+ netdev_err(port->dev, "failed to refill BM pools\n");
+ rx_filled--;
+ }
+ }
+
+ if (rcvd_pkts) {
+ struct mvpp2_pcpu_stats *stats = this_cpu_ptr(port->stats);
+
+ u64_stats_update_begin(&stats->syncp);
+ stats->rx_packets += rcvd_pkts;
+ stats->rx_bytes += rcvd_bytes;
+ u64_stats_update_end(&stats->syncp);
+ }
+
+ /* Update Rx queue management counters */
+ wmb();
+ mvpp2_rxq_status_update(port, rxq->id, rx_todo, rx_filled);
+
+ return rx_todo;
+}
+
+static inline void
+tx_desc_unmap_put(struct device *dev, struct mvpp2_tx_queue *txq,
+ struct mvpp2_tx_desc *desc)
+{
+ dma_unmap_single(dev, desc->buf_phys_addr,
+ desc->data_size, DMA_TO_DEVICE);
+ mvpp2_txq_desc_put(txq);
+}
+
+/* Handle tx fragmentation processing */
+static int mvpp2_tx_frag_process(struct mvpp2_port *port, struct sk_buff *skb,
+ struct mvpp2_tx_queue *aggr_txq,
+ struct mvpp2_tx_queue *txq)
+{
+ struct mvpp2_txq_pcpu *txq_pcpu = this_cpu_ptr(txq->pcpu);
+ struct mvpp2_tx_desc *tx_desc;
+ int i;
+ dma_addr_t buf_phys_addr;
+
+ for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
+ skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
+ void *addr = page_address(frag->page.p) + frag->page_offset;
+
+ tx_desc = mvpp2_txq_next_desc_get(aggr_txq);
+ tx_desc->phys_txq = txq->id;
+ tx_desc->data_size = frag->size;
+
+ buf_phys_addr = dma_map_single(port->dev->dev.parent, addr,
+ tx_desc->data_size,
+ DMA_TO_DEVICE);
+ if (dma_mapping_error(port->dev->dev.parent, buf_phys_addr)) {
+ mvpp2_txq_desc_put(txq);
+ goto error;
+ }
+
+ tx_desc->packet_offset = buf_phys_addr & MVPP2_TX_DESC_ALIGN;
+ tx_desc->buf_phys_addr = buf_phys_addr & (~MVPP2_TX_DESC_ALIGN);
+
+ if (i == (skb_shinfo(skb)->nr_frags - 1)) {
+ /* Last descriptor */
+ tx_desc->command = MVPP2_TXD_L_DESC;
+ mvpp2_txq_inc_put(txq_pcpu, skb);
+ } else {
+ /* Descriptor in the middle: Not First, Not Last */
+ tx_desc->command = 0;
+ mvpp2_txq_inc_put(txq_pcpu, NULL);
+ }
+ }
+
+ return 0;
+
+error:
+ /* Release all descriptors that were used to map fragments of
+ * this packet, as well as the corresponding DMA mappings
+ */
+ for (i = i - 1; i >= 0; i--) {
+ tx_desc = txq->descs + i;
+ tx_desc_unmap_put(port->dev->dev.parent, txq, tx_desc);
+ }
+
+ return -ENOMEM;
+}
+
+/* Main tx processing */
+static int mvpp2_tx(struct sk_buff *skb, struct net_device *dev)
+{
+ struct mvpp2_port *port = netdev_priv(dev);
+ struct mvpp2_tx_queue *txq, *aggr_txq;
+ struct mvpp2_txq_pcpu *txq_pcpu;
+ struct mvpp2_tx_desc *tx_desc;
+ dma_addr_t buf_phys_addr;
+ int frags = 0;
+ u16 txq_id;
+ u32 tx_cmd;
+
+ txq_id = skb_get_queue_mapping(skb);
+ txq = port->txqs[txq_id];
+ txq_pcpu = this_cpu_ptr(txq->pcpu);
+ aggr_txq = &port->priv->aggr_txqs[smp_processor_id()];
+
+ frags = skb_shinfo(skb)->nr_frags + 1;
+
+ /* Check number of available descriptors */
+ if (mvpp2_aggr_desc_num_check(port->priv, aggr_txq, frags) ||
+ mvpp2_txq_reserved_desc_num_proc(port->priv, txq,
+ txq_pcpu, frags)) {
+ frags = 0;
+ goto out;
+ }
+
+ /* Get a descriptor for the first part of the packet */
+ tx_desc = mvpp2_txq_next_desc_get(aggr_txq);
+ tx_desc->phys_txq = txq->id;
+ tx_desc->data_size = skb_headlen(skb);
+
+ buf_phys_addr = dma_map_single(dev->dev.parent, skb->data,
+ tx_desc->data_size, DMA_TO_DEVICE);
+ if (unlikely(dma_mapping_error(dev->dev.parent, buf_phys_addr))) {
+ mvpp2_txq_desc_put(txq);
+ frags = 0;
+ goto out;
+ }
+ tx_desc->packet_offset = buf_phys_addr & MVPP2_TX_DESC_ALIGN;
+ tx_desc->buf_phys_addr = buf_phys_addr & ~MVPP2_TX_DESC_ALIGN;
+
+ tx_cmd = mvpp2_skb_tx_csum(port, skb);
+
+ if (frags == 1) {
+ /* First and Last descriptor */
+ tx_cmd |= MVPP2_TXD_F_DESC | MVPP2_TXD_L_DESC;
+ tx_desc->command = tx_cmd;
+ mvpp2_txq_inc_put(txq_pcpu, skb);
+ } else {
+ /* First but not Last */
+ tx_cmd |= MVPP2_TXD_F_DESC | MVPP2_TXD_PADDING_DISABLE;
+ tx_desc->command = tx_cmd;
+ mvpp2_txq_inc_put(txq_pcpu, NULL);
+
+ /* Continue with other skb fragments */
+ if (mvpp2_tx_frag_process(port, skb, aggr_txq, txq)) {
+ tx_desc_unmap_put(port->dev->dev.parent, txq, tx_desc);
+ frags = 0;
+ goto out;
+ }
+ }
+
+ txq_pcpu->reserved_num -= frags;
+ txq_pcpu->count += frags;
+ aggr_txq->count += frags;
+
+ /* Enable transmit */
+ wmb();
+ mvpp2_aggr_txq_pend_desc_add(port, frags);
+
+ if (txq_pcpu->size - txq_pcpu->count < MAX_SKB_FRAGS + 1) {
+ struct netdev_queue *nq = netdev_get_tx_queue(dev, txq_id);
+
+ netif_tx_stop_queue(nq);
+ }
+out:
+ if (frags > 0) {
+ struct mvpp2_pcpu_stats *stats = this_cpu_ptr(port->stats);
+
+ u64_stats_update_begin(&stats->syncp);
+ stats->tx_packets++;
+ stats->tx_bytes += skb->len;
+ u64_stats_update_end(&stats->syncp);
+ } else {
+ dev->stats.tx_dropped++;
+ dev_kfree_skb_any(skb);
+ }
+
+ return NETDEV_TX_OK;
+}
+
+static inline void mvpp2_cause_error(struct net_device *dev, int cause)
+{
+ if (cause & MVPP2_CAUSE_FCS_ERR_MASK)
+ netdev_err(dev, "FCS error\n");
+ if (cause & MVPP2_CAUSE_RX_FIFO_OVERRUN_MASK)
+ netdev_err(dev, "rx fifo overrun error\n");
+ if (cause & MVPP2_CAUSE_TX_FIFO_UNDERRUN_MASK)
+ netdev_err(dev, "tx fifo underrun error\n");
+}
+
+static void mvpp2_txq_done_percpu(void *arg)
+{
+ struct mvpp2_port *port = arg;
+ u32 cause_rx_tx, cause_tx, cause_misc;
+
+ /* Rx/Tx cause register
+ *
+ * Bits 0-15: each bit indicates received packets on the Rx queue
+ * (bit 0 is for Rx queue 0).
+ *
+ * Bits 16-23: each bit indicates transmitted packets on the Tx queue
+ * (bit 16 is for Tx queue 0).
+ *
+ * Each CPU has its own Rx/Tx cause register
+ */
+ cause_rx_tx = mvpp2_read(port->priv,
+ MVPP2_ISR_RX_TX_CAUSE_REG(port->id));
+ cause_tx = cause_rx_tx & MVPP2_CAUSE_TXQ_OCCUP_DESC_ALL_MASK;
+ cause_misc = cause_rx_tx & MVPP2_CAUSE_MISC_SUM_MASK;
+
+ if (cause_misc) {
+ mvpp2_cause_error(port->dev, cause_misc);
+
+ /* Clear the cause register */
+ mvpp2_write(port->priv, MVPP2_ISR_MISC_CAUSE_REG, 0);
+ mvpp2_write(port->priv, MVPP2_ISR_RX_TX_CAUSE_REG(port->id),
+ cause_rx_tx & ~MVPP2_CAUSE_MISC_SUM_MASK);
+ }
+
+ /* Release TX descriptors */
+ if (cause_tx) {
+ struct mvpp2_tx_queue *txq = mvpp2_get_tx_queue(port, cause_tx);
+ struct mvpp2_txq_pcpu *txq_pcpu = this_cpu_ptr(txq->pcpu);
+
+ if (txq_pcpu->count)
+ mvpp2_txq_done(port, txq, txq_pcpu);
+ }
+}
+
+static int mvpp2_poll(struct napi_struct *napi, int budget)
+{
+ u32 cause_rx_tx, cause_rx;
+ int rx_done = 0;
+ struct mvpp2_port *port = netdev_priv(napi->dev);
+
+ on_each_cpu(mvpp2_txq_done_percpu, port, 1);
+
+ cause_rx_tx = mvpp2_read(port->priv,
+ MVPP2_ISR_RX_TX_CAUSE_REG(port->id));
+ cause_rx = cause_rx_tx & MVPP2_CAUSE_RXQ_OCCUP_DESC_ALL_MASK;
+
+ /* Process RX packets */
+ cause_rx |= port->pending_cause_rx;
+ while (cause_rx && budget > 0) {
+ int count;
+ struct mvpp2_rx_queue *rxq;
+
+ rxq = mvpp2_get_rx_queue(port, cause_rx);
+ if (!rxq)
+ break;
+
+ count = mvpp2_rx(port, budget, rxq);
+ rx_done += count;
+ budget -= count;
+ if (budget > 0) {
+ /* Clear the bit associated to this Rx queue
+ * so that next iteration will continue from
+ * the next Rx queue.
+ */
+ cause_rx &= ~(1 << rxq->logic_rxq);
+ }
+ }
+
+ if (budget > 0) {
+ cause_rx = 0;
+ napi_complete(napi);
+
+ mvpp2_interrupts_enable(port);
+ }
+ port->pending_cause_rx = cause_rx;
+ return rx_done;
+}
+
+/* Set hw internals when starting port */
+static void mvpp2_start_dev(struct mvpp2_port *port)
+{
+ mvpp2_gmac_max_rx_size_set(port);
+ mvpp2_txp_max_tx_size_set(port);
+
+ napi_enable(&port->napi);
+
+ /* Enable interrupts on all CPUs */
+ mvpp2_interrupts_enable(port);
+
+ mvpp2_port_enable(port);
+ phy_start(port->phy_dev);
+ netif_tx_start_all_queues(port->dev);
+}
+
+/* Set hw internals when stopping port */
+static void mvpp2_stop_dev(struct mvpp2_port *port)
+{
+ /* Stop new packets from arriving to RXQs */
+ mvpp2_ingress_disable(port);
+
+ mdelay(10);
+
+ /* Disable interrupts on all CPUs */
+ mvpp2_interrupts_disable(port);
+
+ napi_disable(&port->napi);
+
+ netif_carrier_off(port->dev);
+ netif_tx_stop_all_queues(port->dev);
+
+ mvpp2_egress_disable(port);
+ mvpp2_port_disable(port);
+ phy_stop(port->phy_dev);
+}
+
+/* Return positive if MTU is valid */
+static inline int mvpp2_check_mtu_valid(struct net_device *dev, int mtu)
+{
+ if (mtu < 68) {
+ netdev_err(dev, "cannot change mtu to less than 68\n");
+ return -EINVAL;
+ }
+
+ /* 9676 == 9700 - 20 and rounding to 8 */
+ if (mtu > 9676) {
+ netdev_info(dev, "illegal MTU value %d, round to 9676\n", mtu);
+ mtu = 9676;
+ }
+
+ if (!IS_ALIGNED(MVPP2_RX_PKT_SIZE(mtu), 8)) {
+ netdev_info(dev, "illegal MTU value %d, round to %d\n", mtu,
+ ALIGN(MVPP2_RX_PKT_SIZE(mtu), 8));
+ mtu = ALIGN(MVPP2_RX_PKT_SIZE(mtu), 8);
+ }
+
+ return mtu;
+}
+
+static int mvpp2_check_ringparam_valid(struct net_device *dev,
+ struct ethtool_ringparam *ring)
+{
+ u16 new_rx_pending = ring->rx_pending;
+ u16 new_tx_pending = ring->tx_pending;
+
+ if (ring->rx_pending == 0 || ring->tx_pending == 0)
+ return -EINVAL;
+
+ if (ring->rx_pending > MVPP2_MAX_RXD)
+ new_rx_pending = MVPP2_MAX_RXD;
+ else if (!IS_ALIGNED(ring->rx_pending, 16))
+ new_rx_pending = ALIGN(ring->rx_pending, 16);
+
+ if (ring->tx_pending > MVPP2_MAX_TXD)
+ new_tx_pending = MVPP2_MAX_TXD;
+ else if (!IS_ALIGNED(ring->tx_pending, 32))
+ new_tx_pending = ALIGN(ring->tx_pending, 32);
+
+ if (ring->rx_pending != new_rx_pending) {
+ netdev_info(dev, "illegal Rx ring size value %d, round to %d\n",
+ ring->rx_pending, new_rx_pending);
+ ring->rx_pending = new_rx_pending;
+ }
+
+ if (ring->tx_pending != new_tx_pending) {
+ netdev_info(dev, "illegal Tx ring size value %d, round to %d\n",
+ ring->tx_pending, new_tx_pending);
+ ring->tx_pending = new_tx_pending;
+ }
+
+ return 0;
+}
+
+static void mvpp2_get_mac_address(struct mvpp2_port *port, unsigned char *addr)
+{
+ u32 mac_addr_l, mac_addr_m, mac_addr_h;
+
+ mac_addr_l = readl(port->base + MVPP2_GMAC_CTRL_1_REG);
+ mac_addr_m = readl(port->priv->lms_base + MVPP2_SRC_ADDR_MIDDLE);
+ mac_addr_h = readl(port->priv->lms_base + MVPP2_SRC_ADDR_HIGH);
+ addr[0] = (mac_addr_h >> 24) & 0xFF;
+ addr[1] = (mac_addr_h >> 16) & 0xFF;
+ addr[2] = (mac_addr_h >> 8) & 0xFF;
+ addr[3] = mac_addr_h & 0xFF;
+ addr[4] = mac_addr_m & 0xFF;
+ addr[5] = (mac_addr_l >> MVPP2_GMAC_SA_LOW_OFFS) & 0xFF;
+}
+
+static int mvpp2_phy_connect(struct mvpp2_port *port)
+{
+ struct phy_device *phy_dev;
+
+ phy_dev = of_phy_connect(port->dev, port->phy_node, mvpp2_link_event, 0,
+ port->phy_interface);
+ if (!phy_dev) {
+ netdev_err(port->dev, "cannot connect to phy\n");
+ return -ENODEV;
+ }
+ phy_dev->supported &= PHY_GBIT_FEATURES;
+ phy_dev->advertising = phy_dev->supported;
+
+ port->phy_dev = phy_dev;
+ port->link = 0;
+ port->duplex = 0;
+ port->speed = 0;
+
+ return 0;
+}
+
+static void mvpp2_phy_disconnect(struct mvpp2_port *port)
+{
+ phy_disconnect(port->phy_dev);
+ port->phy_dev = NULL;
+}
+
+static int mvpp2_open(struct net_device *dev)
+{
+ struct mvpp2_port *port = netdev_priv(dev);
+ unsigned char mac_bcast[ETH_ALEN] = {
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
+ int err;
+
+ err = mvpp2_prs_mac_da_accept(port->priv, port->id, mac_bcast, true);
+ if (err) {
+ netdev_err(dev, "mvpp2_prs_mac_da_accept BC failed\n");
+ return err;
+ }
+ err = mvpp2_prs_mac_da_accept(port->priv, port->id,
+ dev->dev_addr, true);
+ if (err) {
+ netdev_err(dev, "mvpp2_prs_mac_da_accept MC failed\n");
+ return err;
+ }
+ err = mvpp2_prs_tag_mode_set(port->priv, port->id, MVPP2_TAG_TYPE_MH);
+ if (err) {
+ netdev_err(dev, "mvpp2_prs_tag_mode_set failed\n");
+ return err;
+ }
+ err = mvpp2_prs_def_flow(port);
+ if (err) {
+ netdev_err(dev, "mvpp2_prs_def_flow failed\n");
+ return err;
+ }
+
+ /* Allocate the Rx/Tx queues */
+ err = mvpp2_setup_rxqs(port);
+ if (err) {
+ netdev_err(port->dev, "cannot allocate Rx queues\n");
+ return err;
+ }
+
+ err = mvpp2_setup_txqs(port);
+ if (err) {
+ netdev_err(port->dev, "cannot allocate Tx queues\n");
+ goto err_cleanup_rxqs;
+ }
+
+ err = request_irq(port->irq, mvpp2_isr, 0, dev->name, port);
+ if (err) {
+ netdev_err(port->dev, "cannot request IRQ %d\n", port->irq);
+ goto err_cleanup_txqs;
+ }
+
+ /* In default link is down */
+ netif_carrier_off(port->dev);
+
+ err = mvpp2_phy_connect(port);
+ if (err < 0)
+ goto err_free_irq;
+
+ /* Unmask interrupts on all CPUs */
+ on_each_cpu(mvpp2_interrupts_unmask, port, 1);
+
+ mvpp2_start_dev(port);
+
+ return 0;
+
+err_free_irq:
+ free_irq(port->irq, port);
+err_cleanup_txqs:
+ mvpp2_cleanup_txqs(port);
+err_cleanup_rxqs:
+ mvpp2_cleanup_rxqs(port);
+ return err;
+}
+
+static int mvpp2_stop(struct net_device *dev)
+{
+ struct mvpp2_port *port = netdev_priv(dev);
+
+ mvpp2_stop_dev(port);
+ mvpp2_phy_disconnect(port);
+
+ /* Mask interrupts on all CPUs */
+ on_each_cpu(mvpp2_interrupts_mask, port, 1);
+
+ free_irq(port->irq, port);
+ mvpp2_cleanup_rxqs(port);
+ mvpp2_cleanup_txqs(port);
+
+ return 0;
+}
+
+static void mvpp2_set_rx_mode(struct net_device *dev)
+{
+ struct mvpp2_port *port = netdev_priv(dev);
+ struct mvpp2 *priv = port->priv;
+ struct netdev_hw_addr *ha;
+ int id = port->id;
+ bool allmulti = dev->flags & IFF_ALLMULTI;
+
+ mvpp2_prs_mac_promisc_set(priv, id, dev->flags & IFF_PROMISC);
+ mvpp2_prs_mac_multi_set(priv, id, MVPP2_PE_MAC_MC_ALL, allmulti);
+ mvpp2_prs_mac_multi_set(priv, id, MVPP2_PE_MAC_MC_IP6, allmulti);
+
+ /* Remove all port->id's mcast enries */
+ mvpp2_prs_mcast_del_all(priv, id);
+
+ if (allmulti && !netdev_mc_empty(dev)) {
+ netdev_for_each_mc_addr(ha, dev)
+ mvpp2_prs_mac_da_accept(priv, id, ha->addr, true);
+ }
+}
+
+static int mvpp2_set_mac_address(struct net_device *dev, void *p)
+{
+ struct mvpp2_port *port = netdev_priv(dev);
+ const struct sockaddr *addr = p;
+ int err;
+
+ if (!is_valid_ether_addr(addr->sa_data)) {
+ err = -EADDRNOTAVAIL;
+ goto error;
+ }
+
+ if (!netif_running(dev)) {
+ err = mvpp2_prs_update_mac_da(dev, addr->sa_data);
+ if (!err)
+ return 0;
+ /* Reconfigure parser to accept the original MAC address */
+ err = mvpp2_prs_update_mac_da(dev, dev->dev_addr);
+ if (err)
+ goto error;
+ }
+
+ mvpp2_stop_dev(port);
+
+ err = mvpp2_prs_update_mac_da(dev, addr->sa_data);
+ if (!err)
+ goto out_start;
+
+ /* Reconfigure parser accept the original MAC address */
+ err = mvpp2_prs_update_mac_da(dev, dev->dev_addr);
+ if (err)
+ goto error;
+out_start:
+ mvpp2_start_dev(port);
+ mvpp2_egress_enable(port);
+ mvpp2_ingress_enable(port);
+ return 0;
+
+error:
+ netdev_err(dev, "fail to change MAC address\n");
+ return err;
+}
+
+static int mvpp2_change_mtu(struct net_device *dev, int mtu)
+{
+ struct mvpp2_port *port = netdev_priv(dev);
+ int err;
+
+ mtu = mvpp2_check_mtu_valid(dev, mtu);
+ if (mtu < 0) {
+ err = mtu;
+ goto error;
+ }
+
+ if (!netif_running(dev)) {
+ err = mvpp2_bm_update_mtu(dev, mtu);
+ if (!err) {
+ port->pkt_size = MVPP2_RX_PKT_SIZE(mtu);
+ return 0;
+ }
+
+ /* Reconfigure BM to the original MTU */
+ err = mvpp2_bm_update_mtu(dev, dev->mtu);
+ if (err)
+ goto error;
+ }
+
+ mvpp2_stop_dev(port);
+
+ err = mvpp2_bm_update_mtu(dev, mtu);
+ if (!err) {
+ port->pkt_size = MVPP2_RX_PKT_SIZE(mtu);
+ goto out_start;
+ }
+
+ /* Reconfigure BM to the original MTU */
+ err = mvpp2_bm_update_mtu(dev, dev->mtu);
+ if (err)
+ goto error;
+
+out_start:
+ mvpp2_start_dev(port);
+ mvpp2_egress_enable(port);
+ mvpp2_ingress_enable(port);
+
+ return 0;
+
+error:
+ netdev_err(dev, "fail to change MTU\n");
+ return err;
+}
+
+static struct rtnl_link_stats64 *
+mvpp2_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats)
+{
+ struct mvpp2_port *port = netdev_priv(dev);
+ unsigned int start;
+ int cpu;
+
+ for_each_possible_cpu(cpu) {
+ struct mvpp2_pcpu_stats *cpu_stats;
+ u64 rx_packets;
+ u64 rx_bytes;
+ u64 tx_packets;
+ u64 tx_bytes;
+
+ cpu_stats = per_cpu_ptr(port->stats, cpu);
+ do {
+ start = u64_stats_fetch_begin_irq(&cpu_stats->syncp);
+ rx_packets = cpu_stats->rx_packets;
+ rx_bytes = cpu_stats->rx_bytes;
+ tx_packets = cpu_stats->tx_packets;
+ tx_bytes = cpu_stats->tx_bytes;
+ } while (u64_stats_fetch_retry_irq(&cpu_stats->syncp, start));
+
+ stats->rx_packets += rx_packets;
+ stats->rx_bytes += rx_bytes;
+ stats->tx_packets += tx_packets;
+ stats->tx_bytes += tx_bytes;
+ }
+
+ stats->rx_errors = dev->stats.rx_errors;
+ stats->rx_dropped = dev->stats.rx_dropped;
+ stats->tx_dropped = dev->stats.tx_dropped;
+
+ return stats;
+}
+
+static int mvpp2_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
+{
+ struct mvpp2_port *port = netdev_priv(dev);
+ int ret;
+
+ if (!port->phy_dev)
+ return -ENOTSUPP;
+
+ ret = phy_mii_ioctl(port->phy_dev, ifr, cmd);
+ if (!ret)
+ mvpp2_link_event(dev);
+
+ return ret;
+}
+
+/* Ethtool methods */
+
+/* Get settings (phy address, speed) for ethtools */
+static int mvpp2_ethtool_get_settings(struct net_device *dev,
+ struct ethtool_cmd *cmd)
+{
+ struct mvpp2_port *port = netdev_priv(dev);
+
+ if (!port->phy_dev)
+ return -ENODEV;
+ return phy_ethtool_gset(port->phy_dev, cmd);
+}
+
+/* Set settings (phy address, speed) for ethtools */
+static int mvpp2_ethtool_set_settings(struct net_device *dev,
+ struct ethtool_cmd *cmd)
+{
+ struct mvpp2_port *port = netdev_priv(dev);
+
+ if (!port->phy_dev)
+ return -ENODEV;
+ return phy_ethtool_sset(port->phy_dev, cmd);
+}
+
+/* Set interrupt coalescing for ethtools */
+static int mvpp2_ethtool_set_coalesce(struct net_device *dev,
+ struct ethtool_coalesce *c)
+{
+ struct mvpp2_port *port = netdev_priv(dev);
+ int queue;
+
+ for (queue = 0; queue < rxq_number; queue++) {
+ struct mvpp2_rx_queue *rxq = port->rxqs[queue];
+
+ rxq->time_coal = c->rx_coalesce_usecs;
+ rxq->pkts_coal = c->rx_max_coalesced_frames;
+ mvpp2_rx_pkts_coal_set(port, rxq, rxq->pkts_coal);
+ mvpp2_rx_time_coal_set(port, rxq, rxq->time_coal);
+ }
+
+ for (queue = 0; queue < txq_number; queue++) {
+ struct mvpp2_tx_queue *txq = port->txqs[queue];
+
+ txq->done_pkts_coal = c->tx_max_coalesced_frames;
+ }
+
+ on_each_cpu(mvpp2_tx_done_pkts_coal_set, port, 1);
+ return 0;
+}
+
+/* get coalescing for ethtools */
+static int mvpp2_ethtool_get_coalesce(struct net_device *dev,
+ struct ethtool_coalesce *c)
+{
+ struct mvpp2_port *port = netdev_priv(dev);
+
+ c->rx_coalesce_usecs = port->rxqs[0]->time_coal;
+ c->rx_max_coalesced_frames = port->rxqs[0]->pkts_coal;
+ c->tx_max_coalesced_frames = port->txqs[0]->done_pkts_coal;
+ return 0;
+}
+
+static void mvpp2_ethtool_get_drvinfo(struct net_device *dev,
+ struct ethtool_drvinfo *drvinfo)
+{
+ strlcpy(drvinfo->driver, MVPP2_DRIVER_NAME,
+ sizeof(drvinfo->driver));
+ strlcpy(drvinfo->version, MVPP2_DRIVER_VERSION,
+ sizeof(drvinfo->version));
+ strlcpy(drvinfo->bus_info, dev_name(&dev->dev),
+ sizeof(drvinfo->bus_info));
+}
+
+static void mvpp2_ethtool_get_ringparam(struct net_device *dev,
+ struct ethtool_ringparam *ring)
+{
+ struct mvpp2_port *port = netdev_priv(dev);
+
+ ring->rx_max_pending = MVPP2_MAX_RXD;
+ ring->tx_max_pending = MVPP2_MAX_TXD;
+ ring->rx_pending = port->rx_ring_size;
+ ring->tx_pending = port->tx_ring_size;
+}
+
+static int mvpp2_ethtool_set_ringparam(struct net_device *dev,
+ struct ethtool_ringparam *ring)
+{
+ struct mvpp2_port *port = netdev_priv(dev);
+ u16 prev_rx_ring_size = port->rx_ring_size;
+ u16 prev_tx_ring_size = port->tx_ring_size;
+ int err;
+
+ err = mvpp2_check_ringparam_valid(dev, ring);
+ if (err)
+ return err;
+
+ if (!netif_running(dev)) {
+ port->rx_ring_size = ring->rx_pending;
+ port->tx_ring_size = ring->tx_pending;
+ return 0;
+ }
+
+ /* The interface is running, so we have to force a
+ * reallocation of the queues
+ */
+ mvpp2_stop_dev(port);
+ mvpp2_cleanup_rxqs(port);
+ mvpp2_cleanup_txqs(port);
+
+ port->rx_ring_size = ring->rx_pending;
+ port->tx_ring_size = ring->tx_pending;
+
+ err = mvpp2_setup_rxqs(port);
+ if (err) {
+ /* Reallocate Rx queues with the original ring size */
+ port->rx_ring_size = prev_rx_ring_size;
+ ring->rx_pending = prev_rx_ring_size;
+ err = mvpp2_setup_rxqs(port);
+ if (err)
+ goto err_out;
+ }
+ err = mvpp2_setup_txqs(port);
+ if (err) {
+ /* Reallocate Tx queues with the original ring size */
+ port->tx_ring_size = prev_tx_ring_size;
+ ring->tx_pending = prev_tx_ring_size;
+ err = mvpp2_setup_txqs(port);
+ if (err)
+ goto err_clean_rxqs;
+ }
+
+ mvpp2_start_dev(port);
+ mvpp2_egress_enable(port);
+ mvpp2_ingress_enable(port);
+
+ return 0;
+
+err_clean_rxqs:
+ mvpp2_cleanup_rxqs(port);
+err_out:
+ netdev_err(dev, "fail to change ring parameters");
+ return err;
+}
+
+/* Device ops */
+
+static const struct net_device_ops mvpp2_netdev_ops = {
+ .ndo_open = mvpp2_open,
+ .ndo_stop = mvpp2_stop,
+ .ndo_start_xmit = mvpp2_tx,
+ .ndo_set_rx_mode = mvpp2_set_rx_mode,
+ .ndo_set_mac_address = mvpp2_set_mac_address,
+ .ndo_change_mtu = mvpp2_change_mtu,
+ .ndo_get_stats64 = mvpp2_get_stats64,
+ .ndo_do_ioctl = mvpp2_ioctl,
+};
+
+static const struct ethtool_ops mvpp2_eth_tool_ops = {
+ .get_link = ethtool_op_get_link,
+ .get_settings = mvpp2_ethtool_get_settings,
+ .set_settings = mvpp2_ethtool_set_settings,
+ .set_coalesce = mvpp2_ethtool_set_coalesce,
+ .get_coalesce = mvpp2_ethtool_get_coalesce,
+ .get_drvinfo = mvpp2_ethtool_get_drvinfo,
+ .get_ringparam = mvpp2_ethtool_get_ringparam,
+ .set_ringparam = mvpp2_ethtool_set_ringparam,
+};
+
+/* Driver initialization */
+
+static void mvpp2_port_power_up(struct mvpp2_port *port)
+{
+ mvpp2_port_mii_set(port);
+ mvpp2_port_periodic_xon_disable(port);
+ mvpp2_port_fc_adv_enable(port);
+ mvpp2_port_reset(port);
+}
+
+/* Initialize port HW */
+static int mvpp2_port_init(struct mvpp2_port *port)
+{
+ struct device *dev = port->dev->dev.parent;
+ struct mvpp2 *priv = port->priv;
+ struct mvpp2_txq_pcpu *txq_pcpu;
+ int queue, cpu, err;
+
+ if (port->first_rxq + rxq_number > MVPP2_RXQ_TOTAL_NUM)
+ return -EINVAL;
+
+ /* Disable port */
+ mvpp2_egress_disable(port);
+ mvpp2_port_disable(port);
+
+ port->txqs = devm_kcalloc(dev, txq_number, sizeof(*port->txqs),
+ GFP_KERNEL);
+ if (!port->txqs)
+ return -ENOMEM;
+
+ /* Associate physical Tx queues to this port and initialize.
+ * The mapping is predefined.
+ */
+ for (queue = 0; queue < txq_number; queue++) {
+ int queue_phy_id = mvpp2_txq_phys(port->id, queue);
+ struct mvpp2_tx_queue *txq;
+
+ txq = devm_kzalloc(dev, sizeof(*txq), GFP_KERNEL);
+ if (!txq)
+ return -ENOMEM;
+
+ txq->pcpu = alloc_percpu(struct mvpp2_txq_pcpu);
+ if (!txq->pcpu) {
+ err = -ENOMEM;
+ goto err_free_percpu;
+ }
+
+ txq->id = queue_phy_id;
+ txq->log_id = queue;
+ txq->done_pkts_coal = MVPP2_TXDONE_COAL_PKTS_THRESH;
+ for_each_present_cpu(cpu) {
+ txq_pcpu = per_cpu_ptr(txq->pcpu, cpu);
+ txq_pcpu->cpu = cpu;
+ }
+
+ port->txqs[queue] = txq;
+ }
+
+ port->rxqs = devm_kcalloc(dev, rxq_number, sizeof(*port->rxqs),
+ GFP_KERNEL);
+ if (!port->rxqs) {
+ err = -ENOMEM;
+ goto err_free_percpu;
+ }
+
+ /* Allocate and initialize Rx queue for this port */
+ for (queue = 0; queue < rxq_number; queue++) {
+ struct mvpp2_rx_queue *rxq;
+
+ /* Map physical Rx queue to port's logical Rx queue */
+ rxq = devm_kzalloc(dev, sizeof(*rxq), GFP_KERNEL);
+ if (!rxq)
+ goto err_free_percpu;
+ /* Map this Rx queue to a physical queue */
+ rxq->id = port->first_rxq + queue;
+ rxq->port = port->id;
+ rxq->logic_rxq = queue;
+
+ port->rxqs[queue] = rxq;
+ }
+
+ /* Configure Rx queue group interrupt for this port */
+ mvpp2_write(priv, MVPP2_ISR_RXQ_GROUP_REG(port->id), rxq_number);
+
+ /* Create Rx descriptor rings */
+ for (queue = 0; queue < rxq_number; queue++) {
+ struct mvpp2_rx_queue *rxq = port->rxqs[queue];
+
+ rxq->size = port->rx_ring_size;
+ rxq->pkts_coal = MVPP2_RX_COAL_PKTS;
+ rxq->time_coal = MVPP2_RX_COAL_USEC;
+ }
+
+ mvpp2_ingress_disable(port);
+
+ /* Port default configuration */
+ mvpp2_defaults_set(port);
+
+ /* Port's classifier configuration */
+ mvpp2_cls_oversize_rxq_set(port);
+ mvpp2_cls_port_config(port);
+
+ /* Provide an initial Rx packet size */
+ port->pkt_size = MVPP2_RX_PKT_SIZE(port->dev->mtu);
+
+ /* Initialize pools for swf */
+ err = mvpp2_swf_bm_pool_init(port);
+ if (err)
+ goto err_free_percpu;
+
+ return 0;
+
+err_free_percpu:
+ for (queue = 0; queue < txq_number; queue++) {
+ if (!port->txqs[queue])
+ continue;
+ free_percpu(port->txqs[queue]->pcpu);
+ }
+ return err;
+}
+
+/* Ports initialization */
+static int mvpp2_port_probe(struct platform_device *pdev,
+ struct device_node *port_node,
+ struct mvpp2 *priv,
+ int *next_first_rxq)
+{
+ struct device_node *phy_node;
+ struct mvpp2_port *port;
+ struct net_device *dev;
+ struct resource *res;
+ const char *dt_mac_addr;
+ const char *mac_from;
+ char hw_mac_addr[ETH_ALEN];
+ u32 id;
+ int features;
+ int phy_mode;
+ int priv_common_regs_num = 2;
+ int err, i;
+
+ dev = alloc_etherdev_mqs(sizeof(struct mvpp2_port), txq_number,
+ rxq_number);
+ if (!dev)
+ return -ENOMEM;
+
+ phy_node = of_parse_phandle(port_node, "phy", 0);
+ if (!phy_node) {
+ dev_err(&pdev->dev, "missing phy\n");
+ err = -ENODEV;
+ goto err_free_netdev;
+ }
+
+ phy_mode = of_get_phy_mode(port_node);
+ if (phy_mode < 0) {
+ dev_err(&pdev->dev, "incorrect phy mode\n");
+ err = phy_mode;
+ goto err_free_netdev;
+ }
+
+ if (of_property_read_u32(port_node, "port-id", &id)) {
+ err = -EINVAL;
+ dev_err(&pdev->dev, "missing port-id value\n");
+ goto err_free_netdev;
+ }
+
+ dev->tx_queue_len = MVPP2_MAX_TXD;
+ dev->watchdog_timeo = 5 * HZ;
+ dev->netdev_ops = &mvpp2_netdev_ops;
+ dev->ethtool_ops = &mvpp2_eth_tool_ops;
+
+ port = netdev_priv(dev);
+
+ port->irq = irq_of_parse_and_map(port_node, 0);
+ if (port->irq <= 0) {
+ err = -EINVAL;
+ goto err_free_netdev;
+ }
+
+ if (of_property_read_bool(port_node, "marvell,loopback"))
+ port->flags |= MVPP2_F_LOOPBACK;
+
+ port->priv = priv;
+ port->id = id;
+ port->first_rxq = *next_first_rxq;
+ port->phy_node = phy_node;
+ port->phy_interface = phy_mode;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM,
+ priv_common_regs_num + id);
+ port->base = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(port->base)) {
+ err = PTR_ERR(port->base);
+ goto err_free_irq;
+ }
+
+ /* Alloc per-cpu stats */
+ port->stats = netdev_alloc_pcpu_stats(struct mvpp2_pcpu_stats);
+ if (!port->stats) {
+ err = -ENOMEM;
+ goto err_free_irq;
+ }
+
+ dt_mac_addr = of_get_mac_address(port_node);
+ if (dt_mac_addr && is_valid_ether_addr(dt_mac_addr)) {
+ mac_from = "device tree";
+ ether_addr_copy(dev->dev_addr, dt_mac_addr);
+ } else {
+ mvpp2_get_mac_address(port, hw_mac_addr);
+ if (is_valid_ether_addr(hw_mac_addr)) {
+ mac_from = "hardware";
+ ether_addr_copy(dev->dev_addr, hw_mac_addr);
+ } else {
+ mac_from = "random";
+ eth_hw_addr_random(dev);
+ }
+ }
+
+ port->tx_ring_size = MVPP2_MAX_TXD;
+ port->rx_ring_size = MVPP2_MAX_RXD;
+ port->dev = dev;
+ SET_NETDEV_DEV(dev, &pdev->dev);
+
+ err = mvpp2_port_init(port);
+ if (err < 0) {
+ dev_err(&pdev->dev, "failed to init port %d\n", id);
+ goto err_free_stats;
+ }
+ mvpp2_port_power_up(port);
+
+ netif_napi_add(dev, &port->napi, mvpp2_poll, NAPI_POLL_WEIGHT);
+ features = NETIF_F_SG | NETIF_F_IP_CSUM;
+ dev->features = features | NETIF_F_RXCSUM;
+ dev->hw_features |= features | NETIF_F_RXCSUM | NETIF_F_GRO;
+ dev->vlan_features |= features;
+
+ err = register_netdev(dev);
+ if (err < 0) {
+ dev_err(&pdev->dev, "failed to register netdev\n");
+ goto err_free_txq_pcpu;
+ }
+ netdev_info(dev, "Using %s mac address %pM\n", mac_from, dev->dev_addr);
+
+ /* Increment the first Rx queue number to be used by the next port */
+ *next_first_rxq += rxq_number;
+ priv->port_list[id] = port;
+ return 0;
+
+err_free_txq_pcpu:
+ for (i = 0; i < txq_number; i++)
+ free_percpu(port->txqs[i]->pcpu);
+err_free_stats:
+ free_percpu(port->stats);
+err_free_irq:
+ irq_dispose_mapping(port->irq);
+err_free_netdev:
+ free_netdev(dev);
+ return err;
+}
+
+/* Ports removal routine */
+static void mvpp2_port_remove(struct mvpp2_port *port)
+{
+ int i;
+
+ unregister_netdev(port->dev);
+ free_percpu(port->stats);
+ for (i = 0; i < txq_number; i++)
+ free_percpu(port->txqs[i]->pcpu);
+ irq_dispose_mapping(port->irq);
+ free_netdev(port->dev);
+}
+
+/* Initialize decoding windows */
+static void mvpp2_conf_mbus_windows(const struct mbus_dram_target_info *dram,
+ struct mvpp2 *priv)
+{
+ u32 win_enable;
+ int i;
+
+ for (i = 0; i < 6; i++) {
+ mvpp2_write(priv, MVPP2_WIN_BASE(i), 0);
+ mvpp2_write(priv, MVPP2_WIN_SIZE(i), 0);
+
+ if (i < 4)
+ mvpp2_write(priv, MVPP2_WIN_REMAP(i), 0);
+ }
+
+ win_enable = 0;
+
+ for (i = 0; i < dram->num_cs; i++) {
+ const struct mbus_dram_window *cs = dram->cs + i;
+
+ mvpp2_write(priv, MVPP2_WIN_BASE(i),
+ (cs->base & 0xffff0000) | (cs->mbus_attr << 8) |
+ dram->mbus_dram_target_id);
+
+ mvpp2_write(priv, MVPP2_WIN_SIZE(i),
+ (cs->size - 1) & 0xffff0000);
+
+ win_enable |= (1 << i);
+ }
+
+ mvpp2_write(priv, MVPP2_BASE_ADDR_ENABLE, win_enable);
+}
+
+/* Initialize Rx FIFO's */
+static void mvpp2_rx_fifo_init(struct mvpp2 *priv)
+{
+ int port;
+
+ for (port = 0; port < MVPP2_MAX_PORTS; port++) {
+ mvpp2_write(priv, MVPP2_RX_DATA_FIFO_SIZE_REG(port),
+ MVPP2_RX_FIFO_PORT_DATA_SIZE);
+ mvpp2_write(priv, MVPP2_RX_ATTR_FIFO_SIZE_REG(port),
+ MVPP2_RX_FIFO_PORT_ATTR_SIZE);
+ }
+
+ mvpp2_write(priv, MVPP2_RX_MIN_PKT_SIZE_REG,
+ MVPP2_RX_FIFO_PORT_MIN_PKT);
+ mvpp2_write(priv, MVPP2_RX_FIFO_INIT_REG, 0x1);
+}
+
+/* Initialize network controller common part HW */
+static int mvpp2_init(struct platform_device *pdev, struct mvpp2 *priv)
+{
+ const struct mbus_dram_target_info *dram_target_info;
+ int err, i;
+ u32 val;
+
+ /* Checks for hardware constraints */
+ if (rxq_number % 4 || (rxq_number > MVPP2_MAX_RXQ) ||
+ (txq_number > MVPP2_MAX_TXQ)) {
+ dev_err(&pdev->dev, "invalid queue size parameter\n");
+ return -EINVAL;
+ }
+
+ /* MBUS windows configuration */
+ dram_target_info = mv_mbus_dram_info();
+ if (dram_target_info)
+ mvpp2_conf_mbus_windows(dram_target_info, priv);
+
+ /* Disable HW PHY polling */
+ val = readl(priv->lms_base + MVPP2_PHY_AN_CFG0_REG);
+ val |= MVPP2_PHY_AN_STOP_SMI0_MASK;
+ writel(val, priv->lms_base + MVPP2_PHY_AN_CFG0_REG);
+
+ /* Allocate and initialize aggregated TXQs */
+ priv->aggr_txqs = devm_kcalloc(&pdev->dev, num_present_cpus(),
+ sizeof(struct mvpp2_tx_queue),
+ GFP_KERNEL);
+ if (!priv->aggr_txqs)
+ return -ENOMEM;
+
+ for_each_present_cpu(i) {
+ priv->aggr_txqs[i].id = i;
+ priv->aggr_txqs[i].size = MVPP2_AGGR_TXQ_SIZE;
+ err = mvpp2_aggr_txq_init(pdev, &priv->aggr_txqs[i],
+ MVPP2_AGGR_TXQ_SIZE, i, priv);
+ if (err < 0)
+ return err;
+ }
+
+ /* Rx Fifo Init */
+ mvpp2_rx_fifo_init(priv);
+
+ /* Reset Rx queue group interrupt configuration */
+ for (i = 0; i < MVPP2_MAX_PORTS; i++)
+ mvpp2_write(priv, MVPP2_ISR_RXQ_GROUP_REG(i), rxq_number);
+
+ writel(MVPP2_EXT_GLOBAL_CTRL_DEFAULT,
+ priv->lms_base + MVPP2_MNG_EXTENDED_GLOBAL_CTRL_REG);
+
+ /* Allow cache snoop when transmiting packets */
+ mvpp2_write(priv, MVPP2_TX_SNOOP_REG, 0x1);
+
+ /* Buffer Manager initialization */
+ err = mvpp2_bm_init(pdev, priv);
+ if (err < 0)
+ return err;
+
+ /* Parser default initialization */
+ err = mvpp2_prs_default_init(pdev, priv);
+ if (err < 0)
+ return err;
+
+ /* Classifier default initialization */
+ mvpp2_cls_init(priv);
+
+ return 0;
+}
+
+static int mvpp2_probe(struct platform_device *pdev)
+{
+ struct device_node *dn = pdev->dev.of_node;
+ struct device_node *port_node;
+ struct mvpp2 *priv;
+ struct resource *res;
+ int port_count, first_rxq;
+ int err;
+
+ priv = devm_kzalloc(&pdev->dev, sizeof(struct mvpp2), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ priv->base = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(priv->base))
+ return PTR_ERR(priv->base);
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+ priv->lms_base = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(priv->lms_base))
+ return PTR_ERR(priv->lms_base);
+
+ priv->pp_clk = devm_clk_get(&pdev->dev, "pp_clk");
+ if (IS_ERR(priv->pp_clk))
+ return PTR_ERR(priv->pp_clk);
+ err = clk_prepare_enable(priv->pp_clk);
+ if (err < 0)
+ return err;
+
+ priv->gop_clk = devm_clk_get(&pdev->dev, "gop_clk");
+ if (IS_ERR(priv->gop_clk)) {
+ err = PTR_ERR(priv->gop_clk);
+ goto err_pp_clk;
+ }
+ err = clk_prepare_enable(priv->gop_clk);
+ if (err < 0)
+ goto err_pp_clk;
+
+ /* Get system's tclk rate */
+ priv->tclk = clk_get_rate(priv->pp_clk);
+
+ /* Initialize network controller */
+ err = mvpp2_init(pdev, priv);
+ if (err < 0) {
+ dev_err(&pdev->dev, "failed to initialize controller\n");
+ goto err_gop_clk;
+ }
+
+ port_count = of_get_available_child_count(dn);
+ if (port_count == 0) {
+ dev_err(&pdev->dev, "no ports enabled\n");
+ err = -ENODEV;
+ goto err_gop_clk;
+ }
+
+ priv->port_list = devm_kcalloc(&pdev->dev, port_count,
+ sizeof(struct mvpp2_port *),
+ GFP_KERNEL);
+ if (!priv->port_list) {
+ err = -ENOMEM;
+ goto err_gop_clk;
+ }
+
+ /* Initialize ports */
+ first_rxq = 0;
+ for_each_available_child_of_node(dn, port_node) {
+ err = mvpp2_port_probe(pdev, port_node, priv, &first_rxq);
+ if (err < 0)
+ goto err_gop_clk;
+ }
+
+ platform_set_drvdata(pdev, priv);
+ return 0;
+
+err_gop_clk:
+ clk_disable_unprepare(priv->gop_clk);
+err_pp_clk:
+ clk_disable_unprepare(priv->pp_clk);
+ return err;
+}
+
+static int mvpp2_remove(struct platform_device *pdev)
+{
+ struct mvpp2 *priv = platform_get_drvdata(pdev);
+ struct device_node *dn = pdev->dev.of_node;
+ struct device_node *port_node;
+ int i = 0;
+
+ for_each_available_child_of_node(dn, port_node) {
+ if (priv->port_list[i])
+ mvpp2_port_remove(priv->port_list[i]);
+ i++;
+ }
+
+ for (i = 0; i < MVPP2_BM_POOLS_NUM; i++) {
+ struct mvpp2_bm_pool *bm_pool = &priv->bm_pools[i];
+
+ mvpp2_bm_pool_destroy(pdev, priv, bm_pool);
+ }
+
+ for_each_present_cpu(i) {
+ struct mvpp2_tx_queue *aggr_txq = &priv->aggr_txqs[i];
+
+ dma_free_coherent(&pdev->dev,
+ MVPP2_AGGR_TXQ_SIZE * MVPP2_DESC_ALIGNED_SIZE,
+ aggr_txq->descs,
+ aggr_txq->descs_phys);
+ }
+
+ clk_disable_unprepare(priv->pp_clk);
+ clk_disable_unprepare(priv->gop_clk);
+
+ return 0;
+}
+
+static const struct of_device_id mvpp2_match[] = {
+ { .compatible = "marvell,armada-375-pp2" },
+ { }
+};
+MODULE_DEVICE_TABLE(of, mvpp2_match);
+
+static struct platform_driver mvpp2_driver = {
+ .probe = mvpp2_probe,
+ .remove = mvpp2_remove,
+ .driver = {
+ .name = MVPP2_DRIVER_NAME,
+ .of_match_table = mvpp2_match,
+ },
+};
+
+module_platform_driver(mvpp2_driver);
+
+MODULE_DESCRIPTION("Marvell PPv2 Ethernet Driver - www.marvell.com");
+MODULE_AUTHOR("Marcin Wojtas <mw@semihalf.com>");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/net/ethernet/marvell/pxa168_eth.c b/drivers/net/ethernet/marvell/pxa168_eth.c
new file mode 100644
index 000000000..7ace07dad
--- /dev/null
+++ b/drivers/net/ethernet/marvell/pxa168_eth.c
@@ -0,0 +1,1630 @@
+/*
+ * PXA168 ethernet driver.
+ * Most of the code is derived from mv643xx ethernet driver.
+ *
+ * Copyright (C) 2010 Marvell International Ltd.
+ * Sachin Sanap <ssanap@marvell.com>
+ * Zhangfei Gao <zgao6@marvell.com>
+ * Philip Rakity <prakity@marvell.com>
+ * Mark Brown <markb@marvell.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <linux/bitops.h>
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/dma-mapping.h>
+#include <linux/etherdevice.h>
+#include <linux/ethtool.h>
+#include <linux/in.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/ip.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_net.h>
+#include <linux/phy.h>
+#include <linux/platform_device.h>
+#include <linux/pxa168_eth.h>
+#include <linux/tcp.h>
+#include <linux/types.h>
+#include <linux/udp.h>
+#include <linux/workqueue.h>
+
+#include <asm/pgtable.h>
+#include <asm/cacheflush.h>
+
+#define DRIVER_NAME "pxa168-eth"
+#define DRIVER_VERSION "0.3"
+
+/*
+ * Registers
+ */
+
+#define PHY_ADDRESS 0x0000
+#define SMI 0x0010
+#define PORT_CONFIG 0x0400
+#define PORT_CONFIG_EXT 0x0408
+#define PORT_COMMAND 0x0410
+#define PORT_STATUS 0x0418
+#define HTPR 0x0428
+#define MAC_ADDR_LOW 0x0430
+#define MAC_ADDR_HIGH 0x0438
+#define SDMA_CONFIG 0x0440
+#define SDMA_CMD 0x0448
+#define INT_CAUSE 0x0450
+#define INT_W_CLEAR 0x0454
+#define INT_MASK 0x0458
+#define ETH_F_RX_DESC_0 0x0480
+#define ETH_C_RX_DESC_0 0x04A0
+#define ETH_C_TX_DESC_1 0x04E4
+
+/* smi register */
+#define SMI_BUSY (1 << 28) /* 0 - Write, 1 - Read */
+#define SMI_R_VALID (1 << 27) /* 0 - Write, 1 - Read */
+#define SMI_OP_W (0 << 26) /* Write operation */
+#define SMI_OP_R (1 << 26) /* Read operation */
+
+#define PHY_WAIT_ITERATIONS 10
+
+#define PXA168_ETH_PHY_ADDR_DEFAULT 0
+/* RX & TX descriptor command */
+#define BUF_OWNED_BY_DMA (1 << 31)
+
+/* RX descriptor status */
+#define RX_EN_INT (1 << 23)
+#define RX_FIRST_DESC (1 << 17)
+#define RX_LAST_DESC (1 << 16)
+#define RX_ERROR (1 << 15)
+
+/* TX descriptor command */
+#define TX_EN_INT (1 << 23)
+#define TX_GEN_CRC (1 << 22)
+#define TX_ZERO_PADDING (1 << 18)
+#define TX_FIRST_DESC (1 << 17)
+#define TX_LAST_DESC (1 << 16)
+#define TX_ERROR (1 << 15)
+
+/* SDMA_CMD */
+#define SDMA_CMD_AT (1 << 31)
+#define SDMA_CMD_TXDL (1 << 24)
+#define SDMA_CMD_TXDH (1 << 23)
+#define SDMA_CMD_AR (1 << 15)
+#define SDMA_CMD_ERD (1 << 7)
+
+/* Bit definitions of the Port Config Reg */
+#define PCR_DUPLEX_FULL (1 << 15)
+#define PCR_HS (1 << 12)
+#define PCR_EN (1 << 7)
+#define PCR_PM (1 << 0)
+
+/* Bit definitions of the Port Config Extend Reg */
+#define PCXR_2BSM (1 << 28)
+#define PCXR_DSCP_EN (1 << 21)
+#define PCXR_RMII_EN (1 << 20)
+#define PCXR_AN_SPEED_DIS (1 << 19)
+#define PCXR_SPEED_100 (1 << 18)
+#define PCXR_MFL_1518 (0 << 14)
+#define PCXR_MFL_1536 (1 << 14)
+#define PCXR_MFL_2048 (2 << 14)
+#define PCXR_MFL_64K (3 << 14)
+#define PCXR_FLOWCTL_DIS (1 << 12)
+#define PCXR_FLP (1 << 11)
+#define PCXR_AN_FLOWCTL_DIS (1 << 10)
+#define PCXR_AN_DUPLEX_DIS (1 << 9)
+#define PCXR_PRIO_TX_OFF 3
+#define PCXR_TX_HIGH_PRI (7 << PCXR_PRIO_TX_OFF)
+
+/* Bit definitions of the SDMA Config Reg */
+#define SDCR_BSZ_OFF 12
+#define SDCR_BSZ8 (3 << SDCR_BSZ_OFF)
+#define SDCR_BSZ4 (2 << SDCR_BSZ_OFF)
+#define SDCR_BSZ2 (1 << SDCR_BSZ_OFF)
+#define SDCR_BSZ1 (0 << SDCR_BSZ_OFF)
+#define SDCR_BLMR (1 << 6)
+#define SDCR_BLMT (1 << 7)
+#define SDCR_RIFB (1 << 9)
+#define SDCR_RC_OFF 2
+#define SDCR_RC_MAX_RETRANS (0xf << SDCR_RC_OFF)
+
+/*
+ * Bit definitions of the Interrupt Cause Reg
+ * and Interrupt MASK Reg is the same
+ */
+#define ICR_RXBUF (1 << 0)
+#define ICR_TXBUF_H (1 << 2)
+#define ICR_TXBUF_L (1 << 3)
+#define ICR_TXEND_H (1 << 6)
+#define ICR_TXEND_L (1 << 7)
+#define ICR_RXERR (1 << 8)
+#define ICR_TXERR_H (1 << 10)
+#define ICR_TXERR_L (1 << 11)
+#define ICR_TX_UDR (1 << 13)
+#define ICR_MII_CH (1 << 28)
+
+#define ALL_INTS (ICR_TXBUF_H | ICR_TXBUF_L | ICR_TX_UDR |\
+ ICR_TXERR_H | ICR_TXERR_L |\
+ ICR_TXEND_H | ICR_TXEND_L |\
+ ICR_RXBUF | ICR_RXERR | ICR_MII_CH)
+
+#define ETH_HW_IP_ALIGN 2 /* hw aligns IP header */
+
+#define NUM_RX_DESCS 64
+#define NUM_TX_DESCS 64
+
+#define HASH_ADD 0
+#define HASH_DELETE 1
+#define HASH_ADDR_TABLE_SIZE 0x4000 /* 16K (1/2K address - PCR_HS == 1) */
+#define HOP_NUMBER 12
+
+/* Bit definitions for Port status */
+#define PORT_SPEED_100 (1 << 0)
+#define FULL_DUPLEX (1 << 1)
+#define FLOW_CONTROL_DISABLED (1 << 2)
+#define LINK_UP (1 << 3)
+
+/* Bit definitions for work to be done */
+#define WORK_TX_DONE (1 << 1)
+
+/*
+ * Misc definitions.
+ */
+#define SKB_DMA_REALIGN ((PAGE_SIZE - NET_SKB_PAD) % SMP_CACHE_BYTES)
+
+struct rx_desc {
+ u32 cmd_sts; /* Descriptor command status */
+ u16 byte_cnt; /* Descriptor buffer byte count */
+ u16 buf_size; /* Buffer size */
+ u32 buf_ptr; /* Descriptor buffer pointer */
+ u32 next_desc_ptr; /* Next descriptor pointer */
+};
+
+struct tx_desc {
+ u32 cmd_sts; /* Command/status field */
+ u16 reserved;
+ u16 byte_cnt; /* buffer byte count */
+ u32 buf_ptr; /* pointer to buffer for this descriptor */
+ u32 next_desc_ptr; /* Pointer to next descriptor */
+};
+
+struct pxa168_eth_private {
+ int port_num; /* User Ethernet port number */
+ int phy_addr;
+ int phy_speed;
+ int phy_duplex;
+ phy_interface_t phy_intf;
+
+ int rx_resource_err; /* Rx ring resource error flag */
+
+ /* Next available and first returning Rx resource */
+ int rx_curr_desc_q, rx_used_desc_q;
+
+ /* Next available and first returning Tx resource */
+ int tx_curr_desc_q, tx_used_desc_q;
+
+ struct rx_desc *p_rx_desc_area;
+ dma_addr_t rx_desc_dma;
+ int rx_desc_area_size;
+ struct sk_buff **rx_skb;
+
+ struct tx_desc *p_tx_desc_area;
+ dma_addr_t tx_desc_dma;
+ int tx_desc_area_size;
+ struct sk_buff **tx_skb;
+
+ struct work_struct tx_timeout_task;
+
+ struct net_device *dev;
+ struct napi_struct napi;
+ u8 work_todo;
+ int skb_size;
+
+ /* Size of Tx Ring per queue */
+ int tx_ring_size;
+ /* Number of tx descriptors in use */
+ int tx_desc_count;
+ /* Size of Rx Ring per queue */
+ int rx_ring_size;
+ /* Number of rx descriptors in use */
+ int rx_desc_count;
+
+ /*
+ * Used in case RX Ring is empty, which can occur when
+ * system does not have resources (skb's)
+ */
+ struct timer_list timeout;
+ struct mii_bus *smi_bus;
+ struct phy_device *phy;
+
+ /* clock */
+ struct clk *clk;
+ struct pxa168_eth_platform_data *pd;
+ /*
+ * Ethernet controller base address.
+ */
+ void __iomem *base;
+
+ /* Pointer to the hardware address filter table */
+ void *htpr;
+ dma_addr_t htpr_dma;
+};
+
+struct addr_table_entry {
+ __le32 lo;
+ __le32 hi;
+};
+
+/* Bit fields of a Hash Table Entry */
+enum hash_table_entry {
+ HASH_ENTRY_VALID = 1,
+ SKIP = 2,
+ HASH_ENTRY_RECEIVE_DISCARD = 4,
+ HASH_ENTRY_RECEIVE_DISCARD_BIT = 2
+};
+
+static int pxa168_get_settings(struct net_device *dev, struct ethtool_cmd *cmd);
+static int pxa168_set_settings(struct net_device *dev, struct ethtool_cmd *cmd);
+static int pxa168_init_hw(struct pxa168_eth_private *pep);
+static int pxa168_init_phy(struct net_device *dev);
+static void eth_port_reset(struct net_device *dev);
+static void eth_port_start(struct net_device *dev);
+static int pxa168_eth_open(struct net_device *dev);
+static int pxa168_eth_stop(struct net_device *dev);
+
+static inline u32 rdl(struct pxa168_eth_private *pep, int offset)
+{
+ return readl(pep->base + offset);
+}
+
+static inline void wrl(struct pxa168_eth_private *pep, int offset, u32 data)
+{
+ writel(data, pep->base + offset);
+}
+
+static void abort_dma(struct pxa168_eth_private *pep)
+{
+ int delay;
+ int max_retries = 40;
+
+ do {
+ wrl(pep, SDMA_CMD, SDMA_CMD_AR | SDMA_CMD_AT);
+ udelay(100);
+
+ delay = 10;
+ while ((rdl(pep, SDMA_CMD) & (SDMA_CMD_AR | SDMA_CMD_AT))
+ && delay-- > 0) {
+ udelay(10);
+ }
+ } while (max_retries-- > 0 && delay <= 0);
+
+ if (max_retries <= 0)
+ netdev_err(pep->dev, "%s : DMA Stuck\n", __func__);
+}
+
+static void rxq_refill(struct net_device *dev)
+{
+ struct pxa168_eth_private *pep = netdev_priv(dev);
+ struct sk_buff *skb;
+ struct rx_desc *p_used_rx_desc;
+ int used_rx_desc;
+
+ while (pep->rx_desc_count < pep->rx_ring_size) {
+ int size;
+
+ skb = netdev_alloc_skb(dev, pep->skb_size);
+ if (!skb)
+ break;
+ if (SKB_DMA_REALIGN)
+ skb_reserve(skb, SKB_DMA_REALIGN);
+ pep->rx_desc_count++;
+ /* Get 'used' Rx descriptor */
+ used_rx_desc = pep->rx_used_desc_q;
+ p_used_rx_desc = &pep->p_rx_desc_area[used_rx_desc];
+ size = skb_end_pointer(skb) - skb->data;
+ p_used_rx_desc->buf_ptr = dma_map_single(NULL,
+ skb->data,
+ size,
+ DMA_FROM_DEVICE);
+ p_used_rx_desc->buf_size = size;
+ pep->rx_skb[used_rx_desc] = skb;
+
+ /* Return the descriptor to DMA ownership */
+ wmb();
+ p_used_rx_desc->cmd_sts = BUF_OWNED_BY_DMA | RX_EN_INT;
+ wmb();
+
+ /* Move the used descriptor pointer to the next descriptor */
+ pep->rx_used_desc_q = (used_rx_desc + 1) % pep->rx_ring_size;
+
+ /* Any Rx return cancels the Rx resource error status */
+ pep->rx_resource_err = 0;
+
+ skb_reserve(skb, ETH_HW_IP_ALIGN);
+ }
+
+ /*
+ * If RX ring is empty of SKB, set a timer to try allocating
+ * again at a later time.
+ */
+ if (pep->rx_desc_count == 0) {
+ pep->timeout.expires = jiffies + (HZ / 10);
+ add_timer(&pep->timeout);
+ }
+}
+
+static inline void rxq_refill_timer_wrapper(unsigned long data)
+{
+ struct pxa168_eth_private *pep = (void *)data;
+ napi_schedule(&pep->napi);
+}
+
+static inline u8 flip_8_bits(u8 x)
+{
+ return (((x) & 0x01) << 3) | (((x) & 0x02) << 1)
+ | (((x) & 0x04) >> 1) | (((x) & 0x08) >> 3)
+ | (((x) & 0x10) << 3) | (((x) & 0x20) << 1)
+ | (((x) & 0x40) >> 1) | (((x) & 0x80) >> 3);
+}
+
+static void nibble_swap_every_byte(unsigned char *mac_addr)
+{
+ int i;
+ for (i = 0; i < ETH_ALEN; i++) {
+ mac_addr[i] = ((mac_addr[i] & 0x0f) << 4) |
+ ((mac_addr[i] & 0xf0) >> 4);
+ }
+}
+
+static void inverse_every_nibble(unsigned char *mac_addr)
+{
+ int i;
+ for (i = 0; i < ETH_ALEN; i++)
+ mac_addr[i] = flip_8_bits(mac_addr[i]);
+}
+
+/*
+ * ----------------------------------------------------------------------------
+ * This function will calculate the hash function of the address.
+ * Inputs
+ * mac_addr_orig - MAC address.
+ * Outputs
+ * return the calculated entry.
+ */
+static u32 hash_function(unsigned char *mac_addr_orig)
+{
+ u32 hash_result;
+ u32 addr0;
+ u32 addr1;
+ u32 addr2;
+ u32 addr3;
+ unsigned char mac_addr[ETH_ALEN];
+
+ /* Make a copy of MAC address since we are going to performe bit
+ * operations on it
+ */
+ memcpy(mac_addr, mac_addr_orig, ETH_ALEN);
+
+ nibble_swap_every_byte(mac_addr);
+ inverse_every_nibble(mac_addr);
+
+ addr0 = (mac_addr[5] >> 2) & 0x3f;
+ addr1 = (mac_addr[5] & 0x03) | (((mac_addr[4] & 0x7f)) << 2);
+ addr2 = ((mac_addr[4] & 0x80) >> 7) | mac_addr[3] << 1;
+ addr3 = (mac_addr[2] & 0xff) | ((mac_addr[1] & 1) << 8);
+
+ hash_result = (addr0 << 9) | (addr1 ^ addr2 ^ addr3);
+ hash_result = hash_result & 0x07ff;
+ return hash_result;
+}
+
+/*
+ * ----------------------------------------------------------------------------
+ * This function will add/del an entry to the address table.
+ * Inputs
+ * pep - ETHERNET .
+ * mac_addr - MAC address.
+ * skip - if 1, skip this address.Used in case of deleting an entry which is a
+ * part of chain in the hash table.We can't just delete the entry since
+ * that will break the chain.We need to defragment the tables time to
+ * time.
+ * rd - 0 Discard packet upon match.
+ * - 1 Receive packet upon match.
+ * Outputs
+ * address table entry is added/deleted.
+ * 0 if success.
+ * -ENOSPC if table full
+ */
+static int add_del_hash_entry(struct pxa168_eth_private *pep,
+ unsigned char *mac_addr,
+ u32 rd, u32 skip, int del)
+{
+ struct addr_table_entry *entry, *start;
+ u32 new_high;
+ u32 new_low;
+ u32 i;
+
+ new_low = (((mac_addr[1] >> 4) & 0xf) << 15)
+ | (((mac_addr[1] >> 0) & 0xf) << 11)
+ | (((mac_addr[0] >> 4) & 0xf) << 7)
+ | (((mac_addr[0] >> 0) & 0xf) << 3)
+ | (((mac_addr[3] >> 4) & 0x1) << 31)
+ | (((mac_addr[3] >> 0) & 0xf) << 27)
+ | (((mac_addr[2] >> 4) & 0xf) << 23)
+ | (((mac_addr[2] >> 0) & 0xf) << 19)
+ | (skip << SKIP) | (rd << HASH_ENTRY_RECEIVE_DISCARD_BIT)
+ | HASH_ENTRY_VALID;
+
+ new_high = (((mac_addr[5] >> 4) & 0xf) << 15)
+ | (((mac_addr[5] >> 0) & 0xf) << 11)
+ | (((mac_addr[4] >> 4) & 0xf) << 7)
+ | (((mac_addr[4] >> 0) & 0xf) << 3)
+ | (((mac_addr[3] >> 5) & 0x7) << 0);
+
+ /*
+ * Pick the appropriate table, start scanning for free/reusable
+ * entries at the index obtained by hashing the specified MAC address
+ */
+ start = pep->htpr;
+ entry = start + hash_function(mac_addr);
+ for (i = 0; i < HOP_NUMBER; i++) {
+ if (!(le32_to_cpu(entry->lo) & HASH_ENTRY_VALID)) {
+ break;
+ } else {
+ /* if same address put in same position */
+ if (((le32_to_cpu(entry->lo) & 0xfffffff8) ==
+ (new_low & 0xfffffff8)) &&
+ (le32_to_cpu(entry->hi) == new_high)) {
+ break;
+ }
+ }
+ if (entry == start + 0x7ff)
+ entry = start;
+ else
+ entry++;
+ }
+
+ if (((le32_to_cpu(entry->lo) & 0xfffffff8) != (new_low & 0xfffffff8)) &&
+ (le32_to_cpu(entry->hi) != new_high) && del)
+ return 0;
+
+ if (i == HOP_NUMBER) {
+ if (!del) {
+ netdev_info(pep->dev,
+ "%s: table section is full, need to "
+ "move to 16kB implementation?\n",
+ __FILE__);
+ return -ENOSPC;
+ } else
+ return 0;
+ }
+
+ /*
+ * Update the selected entry
+ */
+ if (del) {
+ entry->hi = 0;
+ entry->lo = 0;
+ } else {
+ entry->hi = cpu_to_le32(new_high);
+ entry->lo = cpu_to_le32(new_low);
+ }
+
+ return 0;
+}
+
+/*
+ * ----------------------------------------------------------------------------
+ * Create an addressTable entry from MAC address info
+ * found in the specifed net_device struct
+ *
+ * Input : pointer to ethernet interface network device structure
+ * Output : N/A
+ */
+static void update_hash_table_mac_address(struct pxa168_eth_private *pep,
+ unsigned char *oaddr,
+ unsigned char *addr)
+{
+ /* Delete old entry */
+ if (oaddr)
+ add_del_hash_entry(pep, oaddr, 1, 0, HASH_DELETE);
+ /* Add new entry */
+ add_del_hash_entry(pep, addr, 1, 0, HASH_ADD);
+}
+
+static int init_hash_table(struct pxa168_eth_private *pep)
+{
+ /*
+ * Hardware expects CPU to build a hash table based on a predefined
+ * hash function and populate it based on hardware address. The
+ * location of the hash table is identified by 32-bit pointer stored
+ * in HTPR internal register. Two possible sizes exists for the hash
+ * table 8kB (256kB of DRAM required (4 x 64 kB banks)) and 1/2kB
+ * (16kB of DRAM required (4 x 4 kB banks)).We currently only support
+ * 1/2kB.
+ */
+ /* TODO: Add support for 8kB hash table and alternative hash
+ * function.Driver can dynamically switch to them if the 1/2kB hash
+ * table is full.
+ */
+ if (pep->htpr == NULL) {
+ pep->htpr = dma_zalloc_coherent(pep->dev->dev.parent,
+ HASH_ADDR_TABLE_SIZE,
+ &pep->htpr_dma, GFP_KERNEL);
+ if (pep->htpr == NULL)
+ return -ENOMEM;
+ } else {
+ memset(pep->htpr, 0, HASH_ADDR_TABLE_SIZE);
+ }
+ wrl(pep, HTPR, pep->htpr_dma);
+ return 0;
+}
+
+static void pxa168_eth_set_rx_mode(struct net_device *dev)
+{
+ struct pxa168_eth_private *pep = netdev_priv(dev);
+ struct netdev_hw_addr *ha;
+ u32 val;
+
+ val = rdl(pep, PORT_CONFIG);
+ if (dev->flags & IFF_PROMISC)
+ val |= PCR_PM;
+ else
+ val &= ~PCR_PM;
+ wrl(pep, PORT_CONFIG, val);
+
+ /*
+ * Remove the old list of MAC address and add dev->addr
+ * and multicast address.
+ */
+ memset(pep->htpr, 0, HASH_ADDR_TABLE_SIZE);
+ update_hash_table_mac_address(pep, NULL, dev->dev_addr);
+
+ netdev_for_each_mc_addr(ha, dev)
+ update_hash_table_mac_address(pep, NULL, ha->addr);
+}
+
+static void pxa168_eth_get_mac_address(struct net_device *dev,
+ unsigned char *addr)
+{
+ struct pxa168_eth_private *pep = netdev_priv(dev);
+ unsigned int mac_h = rdl(pep, MAC_ADDR_HIGH);
+ unsigned int mac_l = rdl(pep, MAC_ADDR_LOW);
+
+ addr[0] = (mac_h >> 24) & 0xff;
+ addr[1] = (mac_h >> 16) & 0xff;
+ addr[2] = (mac_h >> 8) & 0xff;
+ addr[3] = mac_h & 0xff;
+ addr[4] = (mac_l >> 8) & 0xff;
+ addr[5] = mac_l & 0xff;
+}
+
+static int pxa168_eth_set_mac_address(struct net_device *dev, void *addr)
+{
+ struct sockaddr *sa = addr;
+ struct pxa168_eth_private *pep = netdev_priv(dev);
+ unsigned char oldMac[ETH_ALEN];
+ u32 mac_h, mac_l;
+
+ if (!is_valid_ether_addr(sa->sa_data))
+ return -EADDRNOTAVAIL;
+ memcpy(oldMac, dev->dev_addr, ETH_ALEN);
+ memcpy(dev->dev_addr, sa->sa_data, ETH_ALEN);
+
+ mac_h = dev->dev_addr[0] << 24;
+ mac_h |= dev->dev_addr[1] << 16;
+ mac_h |= dev->dev_addr[2] << 8;
+ mac_h |= dev->dev_addr[3];
+ mac_l = dev->dev_addr[4] << 8;
+ mac_l |= dev->dev_addr[5];
+ wrl(pep, MAC_ADDR_HIGH, mac_h);
+ wrl(pep, MAC_ADDR_LOW, mac_l);
+
+ netif_addr_lock_bh(dev);
+ update_hash_table_mac_address(pep, oldMac, dev->dev_addr);
+ netif_addr_unlock_bh(dev);
+ return 0;
+}
+
+static void eth_port_start(struct net_device *dev)
+{
+ unsigned int val = 0;
+ struct pxa168_eth_private *pep = netdev_priv(dev);
+ int tx_curr_desc, rx_curr_desc;
+
+ phy_start(pep->phy);
+
+ /* Assignment of Tx CTRP of given queue */
+ tx_curr_desc = pep->tx_curr_desc_q;
+ wrl(pep, ETH_C_TX_DESC_1,
+ (u32) (pep->tx_desc_dma + tx_curr_desc * sizeof(struct tx_desc)));
+
+ /* Assignment of Rx CRDP of given queue */
+ rx_curr_desc = pep->rx_curr_desc_q;
+ wrl(pep, ETH_C_RX_DESC_0,
+ (u32) (pep->rx_desc_dma + rx_curr_desc * sizeof(struct rx_desc)));
+
+ wrl(pep, ETH_F_RX_DESC_0,
+ (u32) (pep->rx_desc_dma + rx_curr_desc * sizeof(struct rx_desc)));
+
+ /* Clear all interrupts */
+ wrl(pep, INT_CAUSE, 0);
+
+ /* Enable all interrupts for receive, transmit and error. */
+ wrl(pep, INT_MASK, ALL_INTS);
+
+ val = rdl(pep, PORT_CONFIG);
+ val |= PCR_EN;
+ wrl(pep, PORT_CONFIG, val);
+
+ /* Start RX DMA engine */
+ val = rdl(pep, SDMA_CMD);
+ val |= SDMA_CMD_ERD;
+ wrl(pep, SDMA_CMD, val);
+}
+
+static void eth_port_reset(struct net_device *dev)
+{
+ struct pxa168_eth_private *pep = netdev_priv(dev);
+ unsigned int val = 0;
+
+ /* Stop all interrupts for receive, transmit and error. */
+ wrl(pep, INT_MASK, 0);
+
+ /* Clear all interrupts */
+ wrl(pep, INT_CAUSE, 0);
+
+ /* Stop RX DMA */
+ val = rdl(pep, SDMA_CMD);
+ val &= ~SDMA_CMD_ERD; /* abort dma command */
+
+ /* Abort any transmit and receive operations and put DMA
+ * in idle state.
+ */
+ abort_dma(pep);
+
+ /* Disable port */
+ val = rdl(pep, PORT_CONFIG);
+ val &= ~PCR_EN;
+ wrl(pep, PORT_CONFIG, val);
+
+ phy_stop(pep->phy);
+}
+
+/*
+ * txq_reclaim - Free the tx desc data for completed descriptors
+ * If force is non-zero, frees uncompleted descriptors as well
+ */
+static int txq_reclaim(struct net_device *dev, int force)
+{
+ struct pxa168_eth_private *pep = netdev_priv(dev);
+ struct tx_desc *desc;
+ u32 cmd_sts;
+ struct sk_buff *skb;
+ int tx_index;
+ dma_addr_t addr;
+ int count;
+ int released = 0;
+
+ netif_tx_lock(dev);
+
+ pep->work_todo &= ~WORK_TX_DONE;
+ while (pep->tx_desc_count > 0) {
+ tx_index = pep->tx_used_desc_q;
+ desc = &pep->p_tx_desc_area[tx_index];
+ cmd_sts = desc->cmd_sts;
+ if (!force && (cmd_sts & BUF_OWNED_BY_DMA)) {
+ if (released > 0) {
+ goto txq_reclaim_end;
+ } else {
+ released = -1;
+ goto txq_reclaim_end;
+ }
+ }
+ pep->tx_used_desc_q = (tx_index + 1) % pep->tx_ring_size;
+ pep->tx_desc_count--;
+ addr = desc->buf_ptr;
+ count = desc->byte_cnt;
+ skb = pep->tx_skb[tx_index];
+ if (skb)
+ pep->tx_skb[tx_index] = NULL;
+
+ if (cmd_sts & TX_ERROR) {
+ if (net_ratelimit())
+ netdev_err(dev, "Error in TX\n");
+ dev->stats.tx_errors++;
+ }
+ dma_unmap_single(NULL, addr, count, DMA_TO_DEVICE);
+ if (skb)
+ dev_kfree_skb_irq(skb);
+ released++;
+ }
+txq_reclaim_end:
+ netif_tx_unlock(dev);
+ return released;
+}
+
+static void pxa168_eth_tx_timeout(struct net_device *dev)
+{
+ struct pxa168_eth_private *pep = netdev_priv(dev);
+
+ netdev_info(dev, "TX timeout desc_count %d\n", pep->tx_desc_count);
+
+ schedule_work(&pep->tx_timeout_task);
+}
+
+static void pxa168_eth_tx_timeout_task(struct work_struct *work)
+{
+ struct pxa168_eth_private *pep = container_of(work,
+ struct pxa168_eth_private,
+ tx_timeout_task);
+ struct net_device *dev = pep->dev;
+ pxa168_eth_stop(dev);
+ pxa168_eth_open(dev);
+}
+
+static int rxq_process(struct net_device *dev, int budget)
+{
+ struct pxa168_eth_private *pep = netdev_priv(dev);
+ struct net_device_stats *stats = &dev->stats;
+ unsigned int received_packets = 0;
+ struct sk_buff *skb;
+
+ while (budget-- > 0) {
+ int rx_next_curr_desc, rx_curr_desc, rx_used_desc;
+ struct rx_desc *rx_desc;
+ unsigned int cmd_sts;
+
+ /* Do not process Rx ring in case of Rx ring resource error */
+ if (pep->rx_resource_err)
+ break;
+ rx_curr_desc = pep->rx_curr_desc_q;
+ rx_used_desc = pep->rx_used_desc_q;
+ rx_desc = &pep->p_rx_desc_area[rx_curr_desc];
+ cmd_sts = rx_desc->cmd_sts;
+ rmb();
+ if (cmd_sts & (BUF_OWNED_BY_DMA))
+ break;
+ skb = pep->rx_skb[rx_curr_desc];
+ pep->rx_skb[rx_curr_desc] = NULL;
+
+ rx_next_curr_desc = (rx_curr_desc + 1) % pep->rx_ring_size;
+ pep->rx_curr_desc_q = rx_next_curr_desc;
+
+ /* Rx descriptors exhausted. */
+ /* Set the Rx ring resource error flag */
+ if (rx_next_curr_desc == rx_used_desc)
+ pep->rx_resource_err = 1;
+ pep->rx_desc_count--;
+ dma_unmap_single(NULL, rx_desc->buf_ptr,
+ rx_desc->buf_size,
+ DMA_FROM_DEVICE);
+ received_packets++;
+ /*
+ * Update statistics.
+ * Note byte count includes 4 byte CRC count
+ */
+ stats->rx_packets++;
+ stats->rx_bytes += rx_desc->byte_cnt;
+ /*
+ * In case received a packet without first / last bits on OR
+ * the error summary bit is on, the packets needs to be droped.
+ */
+ if (((cmd_sts & (RX_FIRST_DESC | RX_LAST_DESC)) !=
+ (RX_FIRST_DESC | RX_LAST_DESC))
+ || (cmd_sts & RX_ERROR)) {
+
+ stats->rx_dropped++;
+ if ((cmd_sts & (RX_FIRST_DESC | RX_LAST_DESC)) !=
+ (RX_FIRST_DESC | RX_LAST_DESC)) {
+ if (net_ratelimit())
+ netdev_err(dev,
+ "Rx pkt on multiple desc\n");
+ }
+ if (cmd_sts & RX_ERROR)
+ stats->rx_errors++;
+ dev_kfree_skb_irq(skb);
+ } else {
+ /*
+ * The -4 is for the CRC in the trailer of the
+ * received packet
+ */
+ skb_put(skb, rx_desc->byte_cnt - 4);
+ skb->protocol = eth_type_trans(skb, dev);
+ netif_receive_skb(skb);
+ }
+ }
+ /* Fill RX ring with skb's */
+ rxq_refill(dev);
+ return received_packets;
+}
+
+static int pxa168_eth_collect_events(struct pxa168_eth_private *pep,
+ struct net_device *dev)
+{
+ u32 icr;
+ int ret = 0;
+
+ icr = rdl(pep, INT_CAUSE);
+ if (icr == 0)
+ return IRQ_NONE;
+
+ wrl(pep, INT_CAUSE, ~icr);
+ if (icr & (ICR_TXBUF_H | ICR_TXBUF_L)) {
+ pep->work_todo |= WORK_TX_DONE;
+ ret = 1;
+ }
+ if (icr & ICR_RXBUF)
+ ret = 1;
+ return ret;
+}
+
+static irqreturn_t pxa168_eth_int_handler(int irq, void *dev_id)
+{
+ struct net_device *dev = (struct net_device *)dev_id;
+ struct pxa168_eth_private *pep = netdev_priv(dev);
+
+ if (unlikely(!pxa168_eth_collect_events(pep, dev)))
+ return IRQ_NONE;
+ /* Disable interrupts */
+ wrl(pep, INT_MASK, 0);
+ napi_schedule(&pep->napi);
+ return IRQ_HANDLED;
+}
+
+static void pxa168_eth_recalc_skb_size(struct pxa168_eth_private *pep)
+{
+ int skb_size;
+
+ /*
+ * Reserve 2+14 bytes for an ethernet header (the hardware
+ * automatically prepends 2 bytes of dummy data to each
+ * received packet), 16 bytes for up to four VLAN tags, and
+ * 4 bytes for the trailing FCS -- 36 bytes total.
+ */
+ skb_size = pep->dev->mtu + 36;
+
+ /*
+ * Make sure that the skb size is a multiple of 8 bytes, as
+ * the lower three bits of the receive descriptor's buffer
+ * size field are ignored by the hardware.
+ */
+ pep->skb_size = (skb_size + 7) & ~7;
+
+ /*
+ * If NET_SKB_PAD is smaller than a cache line,
+ * netdev_alloc_skb() will cause skb->data to be misaligned
+ * to a cache line boundary. If this is the case, include
+ * some extra space to allow re-aligning the data area.
+ */
+ pep->skb_size += SKB_DMA_REALIGN;
+
+}
+
+static int set_port_config_ext(struct pxa168_eth_private *pep)
+{
+ int skb_size;
+
+ pxa168_eth_recalc_skb_size(pep);
+ if (pep->skb_size <= 1518)
+ skb_size = PCXR_MFL_1518;
+ else if (pep->skb_size <= 1536)
+ skb_size = PCXR_MFL_1536;
+ else if (pep->skb_size <= 2048)
+ skb_size = PCXR_MFL_2048;
+ else
+ skb_size = PCXR_MFL_64K;
+
+ /* Extended Port Configuration */
+ wrl(pep, PORT_CONFIG_EXT,
+ PCXR_AN_SPEED_DIS | /* Disable HW AN */
+ PCXR_AN_DUPLEX_DIS |
+ PCXR_AN_FLOWCTL_DIS |
+ PCXR_2BSM | /* Two byte prefix aligns IP hdr */
+ PCXR_DSCP_EN | /* Enable DSCP in IP */
+ skb_size | PCXR_FLP | /* do not force link pass */
+ PCXR_TX_HIGH_PRI); /* Transmit - high priority queue */
+
+ return 0;
+}
+
+static void pxa168_eth_adjust_link(struct net_device *dev)
+{
+ struct pxa168_eth_private *pep = netdev_priv(dev);
+ struct phy_device *phy = pep->phy;
+ u32 cfg, cfg_o = rdl(pep, PORT_CONFIG);
+ u32 cfgext, cfgext_o = rdl(pep, PORT_CONFIG_EXT);
+
+ cfg = cfg_o & ~PCR_DUPLEX_FULL;
+ cfgext = cfgext_o & ~(PCXR_SPEED_100 | PCXR_FLOWCTL_DIS | PCXR_RMII_EN);
+
+ if (phy->interface == PHY_INTERFACE_MODE_RMII)
+ cfgext |= PCXR_RMII_EN;
+ if (phy->speed == SPEED_100)
+ cfgext |= PCXR_SPEED_100;
+ if (phy->duplex)
+ cfg |= PCR_DUPLEX_FULL;
+ if (!phy->pause)
+ cfgext |= PCXR_FLOWCTL_DIS;
+
+ /* Bail out if there has nothing changed */
+ if (cfg == cfg_o && cfgext == cfgext_o)
+ return;
+
+ wrl(pep, PORT_CONFIG, cfg);
+ wrl(pep, PORT_CONFIG_EXT, cfgext);
+
+ phy_print_status(phy);
+}
+
+static int pxa168_init_phy(struct net_device *dev)
+{
+ struct pxa168_eth_private *pep = netdev_priv(dev);
+ struct ethtool_cmd cmd;
+ int err;
+
+ if (pep->phy)
+ return 0;
+
+ pep->phy = mdiobus_scan(pep->smi_bus, pep->phy_addr);
+ if (!pep->phy)
+ return -ENODEV;
+
+ err = phy_connect_direct(dev, pep->phy, pxa168_eth_adjust_link,
+ pep->phy_intf);
+ if (err)
+ return err;
+
+ err = pxa168_get_settings(dev, &cmd);
+ if (err)
+ return err;
+
+ cmd.phy_address = pep->phy_addr;
+ cmd.speed = pep->phy_speed;
+ cmd.duplex = pep->phy_duplex;
+ cmd.advertising = PHY_BASIC_FEATURES;
+ cmd.autoneg = AUTONEG_ENABLE;
+
+ if (cmd.speed != 0)
+ cmd.autoneg = AUTONEG_DISABLE;
+
+ return pxa168_set_settings(dev, &cmd);
+}
+
+static int pxa168_init_hw(struct pxa168_eth_private *pep)
+{
+ int err = 0;
+
+ /* Disable interrupts */
+ wrl(pep, INT_MASK, 0);
+ wrl(pep, INT_CAUSE, 0);
+ /* Write to ICR to clear interrupts. */
+ wrl(pep, INT_W_CLEAR, 0);
+ /* Abort any transmit and receive operations and put DMA
+ * in idle state.
+ */
+ abort_dma(pep);
+ /* Initialize address hash table */
+ err = init_hash_table(pep);
+ if (err)
+ return err;
+ /* SDMA configuration */
+ wrl(pep, SDMA_CONFIG, SDCR_BSZ8 | /* Burst size = 32 bytes */
+ SDCR_RIFB | /* Rx interrupt on frame */
+ SDCR_BLMT | /* Little endian transmit */
+ SDCR_BLMR | /* Little endian receive */
+ SDCR_RC_MAX_RETRANS); /* Max retransmit count */
+ /* Port Configuration */
+ wrl(pep, PORT_CONFIG, PCR_HS); /* Hash size is 1/2kb */
+ set_port_config_ext(pep);
+
+ return err;
+}
+
+static int rxq_init(struct net_device *dev)
+{
+ struct pxa168_eth_private *pep = netdev_priv(dev);
+ struct rx_desc *p_rx_desc;
+ int size = 0, i = 0;
+ int rx_desc_num = pep->rx_ring_size;
+
+ /* Allocate RX skb rings */
+ pep->rx_skb = kzalloc(sizeof(*pep->rx_skb) * pep->rx_ring_size,
+ GFP_KERNEL);
+ if (!pep->rx_skb)
+ return -ENOMEM;
+
+ /* Allocate RX ring */
+ pep->rx_desc_count = 0;
+ size = pep->rx_ring_size * sizeof(struct rx_desc);
+ pep->rx_desc_area_size = size;
+ pep->p_rx_desc_area = dma_zalloc_coherent(pep->dev->dev.parent, size,
+ &pep->rx_desc_dma,
+ GFP_KERNEL);
+ if (!pep->p_rx_desc_area)
+ goto out;
+
+ /* initialize the next_desc_ptr links in the Rx descriptors ring */
+ p_rx_desc = pep->p_rx_desc_area;
+ for (i = 0; i < rx_desc_num; i++) {
+ p_rx_desc[i].next_desc_ptr = pep->rx_desc_dma +
+ ((i + 1) % rx_desc_num) * sizeof(struct rx_desc);
+ }
+ /* Save Rx desc pointer to driver struct. */
+ pep->rx_curr_desc_q = 0;
+ pep->rx_used_desc_q = 0;
+ pep->rx_desc_area_size = rx_desc_num * sizeof(struct rx_desc);
+ return 0;
+out:
+ kfree(pep->rx_skb);
+ return -ENOMEM;
+}
+
+static void rxq_deinit(struct net_device *dev)
+{
+ struct pxa168_eth_private *pep = netdev_priv(dev);
+ int curr;
+
+ /* Free preallocated skb's on RX rings */
+ for (curr = 0; pep->rx_desc_count && curr < pep->rx_ring_size; curr++) {
+ if (pep->rx_skb[curr]) {
+ dev_kfree_skb(pep->rx_skb[curr]);
+ pep->rx_desc_count--;
+ }
+ }
+ if (pep->rx_desc_count)
+ netdev_err(dev, "Error in freeing Rx Ring. %d skb's still\n",
+ pep->rx_desc_count);
+ /* Free RX ring */
+ if (pep->p_rx_desc_area)
+ dma_free_coherent(pep->dev->dev.parent, pep->rx_desc_area_size,
+ pep->p_rx_desc_area, pep->rx_desc_dma);
+ kfree(pep->rx_skb);
+}
+
+static int txq_init(struct net_device *dev)
+{
+ struct pxa168_eth_private *pep = netdev_priv(dev);
+ struct tx_desc *p_tx_desc;
+ int size = 0, i = 0;
+ int tx_desc_num = pep->tx_ring_size;
+
+ pep->tx_skb = kzalloc(sizeof(*pep->tx_skb) * pep->tx_ring_size,
+ GFP_KERNEL);
+ if (!pep->tx_skb)
+ return -ENOMEM;
+
+ /* Allocate TX ring */
+ pep->tx_desc_count = 0;
+ size = pep->tx_ring_size * sizeof(struct tx_desc);
+ pep->tx_desc_area_size = size;
+ pep->p_tx_desc_area = dma_zalloc_coherent(pep->dev->dev.parent, size,
+ &pep->tx_desc_dma,
+ GFP_KERNEL);
+ if (!pep->p_tx_desc_area)
+ goto out;
+ /* Initialize the next_desc_ptr links in the Tx descriptors ring */
+ p_tx_desc = pep->p_tx_desc_area;
+ for (i = 0; i < tx_desc_num; i++) {
+ p_tx_desc[i].next_desc_ptr = pep->tx_desc_dma +
+ ((i + 1) % tx_desc_num) * sizeof(struct tx_desc);
+ }
+ pep->tx_curr_desc_q = 0;
+ pep->tx_used_desc_q = 0;
+ pep->tx_desc_area_size = tx_desc_num * sizeof(struct tx_desc);
+ return 0;
+out:
+ kfree(pep->tx_skb);
+ return -ENOMEM;
+}
+
+static void txq_deinit(struct net_device *dev)
+{
+ struct pxa168_eth_private *pep = netdev_priv(dev);
+
+ /* Free outstanding skb's on TX ring */
+ txq_reclaim(dev, 1);
+ BUG_ON(pep->tx_used_desc_q != pep->tx_curr_desc_q);
+ /* Free TX ring */
+ if (pep->p_tx_desc_area)
+ dma_free_coherent(pep->dev->dev.parent, pep->tx_desc_area_size,
+ pep->p_tx_desc_area, pep->tx_desc_dma);
+ kfree(pep->tx_skb);
+}
+
+static int pxa168_eth_open(struct net_device *dev)
+{
+ struct pxa168_eth_private *pep = netdev_priv(dev);
+ int err;
+
+ err = pxa168_init_phy(dev);
+ if (err)
+ return err;
+
+ err = request_irq(dev->irq, pxa168_eth_int_handler, 0, dev->name, dev);
+ if (err) {
+ dev_err(&dev->dev, "can't assign irq\n");
+ return -EAGAIN;
+ }
+ pep->rx_resource_err = 0;
+ err = rxq_init(dev);
+ if (err != 0)
+ goto out_free_irq;
+ err = txq_init(dev);
+ if (err != 0)
+ goto out_free_rx_skb;
+ pep->rx_used_desc_q = 0;
+ pep->rx_curr_desc_q = 0;
+
+ /* Fill RX ring with skb's */
+ rxq_refill(dev);
+ pep->rx_used_desc_q = 0;
+ pep->rx_curr_desc_q = 0;
+ netif_carrier_off(dev);
+ napi_enable(&pep->napi);
+ eth_port_start(dev);
+ return 0;
+out_free_rx_skb:
+ rxq_deinit(dev);
+out_free_irq:
+ free_irq(dev->irq, dev);
+ return err;
+}
+
+static int pxa168_eth_stop(struct net_device *dev)
+{
+ struct pxa168_eth_private *pep = netdev_priv(dev);
+ eth_port_reset(dev);
+
+ /* Disable interrupts */
+ wrl(pep, INT_MASK, 0);
+ wrl(pep, INT_CAUSE, 0);
+ /* Write to ICR to clear interrupts. */
+ wrl(pep, INT_W_CLEAR, 0);
+ napi_disable(&pep->napi);
+ del_timer_sync(&pep->timeout);
+ netif_carrier_off(dev);
+ free_irq(dev->irq, dev);
+ rxq_deinit(dev);
+ txq_deinit(dev);
+
+ return 0;
+}
+
+static int pxa168_eth_change_mtu(struct net_device *dev, int mtu)
+{
+ int retval;
+ struct pxa168_eth_private *pep = netdev_priv(dev);
+
+ if ((mtu > 9500) || (mtu < 68))
+ return -EINVAL;
+
+ dev->mtu = mtu;
+ retval = set_port_config_ext(pep);
+
+ if (!netif_running(dev))
+ return 0;
+
+ /*
+ * Stop and then re-open the interface. This will allocate RX
+ * skbs of the new MTU.
+ * There is a possible danger that the open will not succeed,
+ * due to memory being full.
+ */
+ pxa168_eth_stop(dev);
+ if (pxa168_eth_open(dev)) {
+ dev_err(&dev->dev,
+ "fatal error on re-opening device after MTU change\n");
+ }
+
+ return 0;
+}
+
+static int eth_alloc_tx_desc_index(struct pxa168_eth_private *pep)
+{
+ int tx_desc_curr;
+
+ tx_desc_curr = pep->tx_curr_desc_q;
+ pep->tx_curr_desc_q = (tx_desc_curr + 1) % pep->tx_ring_size;
+ BUG_ON(pep->tx_curr_desc_q == pep->tx_used_desc_q);
+ pep->tx_desc_count++;
+
+ return tx_desc_curr;
+}
+
+static int pxa168_rx_poll(struct napi_struct *napi, int budget)
+{
+ struct pxa168_eth_private *pep =
+ container_of(napi, struct pxa168_eth_private, napi);
+ struct net_device *dev = pep->dev;
+ int work_done = 0;
+
+ /*
+ * We call txq_reclaim every time since in NAPI interupts are disabled
+ * and due to this we miss the TX_DONE interrupt,which is not updated in
+ * interrupt status register.
+ */
+ txq_reclaim(dev, 0);
+ if (netif_queue_stopped(dev)
+ && pep->tx_ring_size - pep->tx_desc_count > 1) {
+ netif_wake_queue(dev);
+ }
+ work_done = rxq_process(dev, budget);
+ if (work_done < budget) {
+ napi_complete(napi);
+ wrl(pep, INT_MASK, ALL_INTS);
+ }
+
+ return work_done;
+}
+
+static int pxa168_eth_start_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+ struct pxa168_eth_private *pep = netdev_priv(dev);
+ struct net_device_stats *stats = &dev->stats;
+ struct tx_desc *desc;
+ int tx_index;
+ int length;
+
+ tx_index = eth_alloc_tx_desc_index(pep);
+ desc = &pep->p_tx_desc_area[tx_index];
+ length = skb->len;
+ pep->tx_skb[tx_index] = skb;
+ desc->byte_cnt = length;
+ desc->buf_ptr = dma_map_single(NULL, skb->data, length, DMA_TO_DEVICE);
+
+ skb_tx_timestamp(skb);
+
+ wmb();
+ desc->cmd_sts = BUF_OWNED_BY_DMA | TX_GEN_CRC | TX_FIRST_DESC |
+ TX_ZERO_PADDING | TX_LAST_DESC | TX_EN_INT;
+ wmb();
+ wrl(pep, SDMA_CMD, SDMA_CMD_TXDH | SDMA_CMD_ERD);
+
+ stats->tx_bytes += length;
+ stats->tx_packets++;
+ dev->trans_start = jiffies;
+ if (pep->tx_ring_size - pep->tx_desc_count <= 1) {
+ /* We handled the current skb, but now we are out of space.*/
+ netif_stop_queue(dev);
+ }
+
+ return NETDEV_TX_OK;
+}
+
+static int smi_wait_ready(struct pxa168_eth_private *pep)
+{
+ int i = 0;
+
+ /* wait for the SMI register to become available */
+ for (i = 0; rdl(pep, SMI) & SMI_BUSY; i++) {
+ if (i == PHY_WAIT_ITERATIONS)
+ return -ETIMEDOUT;
+ msleep(10);
+ }
+
+ return 0;
+}
+
+static int pxa168_smi_read(struct mii_bus *bus, int phy_addr, int regnum)
+{
+ struct pxa168_eth_private *pep = bus->priv;
+ int i = 0;
+ int val;
+
+ if (smi_wait_ready(pep)) {
+ netdev_warn(pep->dev, "pxa168_eth: SMI bus busy timeout\n");
+ return -ETIMEDOUT;
+ }
+ wrl(pep, SMI, (phy_addr << 16) | (regnum << 21) | SMI_OP_R);
+ /* now wait for the data to be valid */
+ for (i = 0; !((val = rdl(pep, SMI)) & SMI_R_VALID); i++) {
+ if (i == PHY_WAIT_ITERATIONS) {
+ netdev_warn(pep->dev,
+ "pxa168_eth: SMI bus read not valid\n");
+ return -ENODEV;
+ }
+ msleep(10);
+ }
+
+ return val & 0xffff;
+}
+
+static int pxa168_smi_write(struct mii_bus *bus, int phy_addr, int regnum,
+ u16 value)
+{
+ struct pxa168_eth_private *pep = bus->priv;
+
+ if (smi_wait_ready(pep)) {
+ netdev_warn(pep->dev, "pxa168_eth: SMI bus busy timeout\n");
+ return -ETIMEDOUT;
+ }
+
+ wrl(pep, SMI, (phy_addr << 16) | (regnum << 21) |
+ SMI_OP_W | (value & 0xffff));
+
+ if (smi_wait_ready(pep)) {
+ netdev_err(pep->dev, "pxa168_eth: SMI bus busy timeout\n");
+ return -ETIMEDOUT;
+ }
+
+ return 0;
+}
+
+static int pxa168_eth_do_ioctl(struct net_device *dev, struct ifreq *ifr,
+ int cmd)
+{
+ struct pxa168_eth_private *pep = netdev_priv(dev);
+ if (pep->phy != NULL)
+ return phy_mii_ioctl(pep->phy, ifr, cmd);
+
+ return -EOPNOTSUPP;
+}
+
+static int pxa168_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
+{
+ struct pxa168_eth_private *pep = netdev_priv(dev);
+ int err;
+
+ err = phy_read_status(pep->phy);
+ if (err == 0)
+ err = phy_ethtool_gset(pep->phy, cmd);
+
+ return err;
+}
+
+static int pxa168_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
+{
+ struct pxa168_eth_private *pep = netdev_priv(dev);
+
+ return phy_ethtool_sset(pep->phy, cmd);
+}
+
+static void pxa168_get_drvinfo(struct net_device *dev,
+ struct ethtool_drvinfo *info)
+{
+ strlcpy(info->driver, DRIVER_NAME, sizeof(info->driver));
+ strlcpy(info->version, DRIVER_VERSION, sizeof(info->version));
+ strlcpy(info->fw_version, "N/A", sizeof(info->fw_version));
+ strlcpy(info->bus_info, "N/A", sizeof(info->bus_info));
+}
+
+static const struct ethtool_ops pxa168_ethtool_ops = {
+ .get_settings = pxa168_get_settings,
+ .set_settings = pxa168_set_settings,
+ .get_drvinfo = pxa168_get_drvinfo,
+ .get_link = ethtool_op_get_link,
+ .get_ts_info = ethtool_op_get_ts_info,
+};
+
+static const struct net_device_ops pxa168_eth_netdev_ops = {
+ .ndo_open = pxa168_eth_open,
+ .ndo_stop = pxa168_eth_stop,
+ .ndo_start_xmit = pxa168_eth_start_xmit,
+ .ndo_set_rx_mode = pxa168_eth_set_rx_mode,
+ .ndo_set_mac_address = pxa168_eth_set_mac_address,
+ .ndo_validate_addr = eth_validate_addr,
+ .ndo_do_ioctl = pxa168_eth_do_ioctl,
+ .ndo_change_mtu = pxa168_eth_change_mtu,
+ .ndo_tx_timeout = pxa168_eth_tx_timeout,
+};
+
+static int pxa168_eth_probe(struct platform_device *pdev)
+{
+ struct pxa168_eth_private *pep = NULL;
+ struct net_device *dev = NULL;
+ struct resource *res;
+ struct clk *clk;
+ struct device_node *np;
+ const unsigned char *mac_addr = NULL;
+ int err;
+
+ printk(KERN_NOTICE "PXA168 10/100 Ethernet Driver\n");
+
+ clk = devm_clk_get(&pdev->dev, NULL);
+ if (IS_ERR(clk)) {
+ dev_err(&pdev->dev, "Fast Ethernet failed to get clock\n");
+ return -ENODEV;
+ }
+ clk_prepare_enable(clk);
+
+ dev = alloc_etherdev(sizeof(struct pxa168_eth_private));
+ if (!dev) {
+ err = -ENOMEM;
+ goto err_clk;
+ }
+
+ platform_set_drvdata(pdev, dev);
+ pep = netdev_priv(dev);
+ pep->dev = dev;
+ pep->clk = clk;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ pep->base = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(pep->base)) {
+ err = -ENOMEM;
+ goto err_netdev;
+ }
+
+ res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
+ BUG_ON(!res);
+ dev->irq = res->start;
+ dev->netdev_ops = &pxa168_eth_netdev_ops;
+ dev->watchdog_timeo = 2 * HZ;
+ dev->base_addr = 0;
+ dev->ethtool_ops = &pxa168_ethtool_ops;
+
+ INIT_WORK(&pep->tx_timeout_task, pxa168_eth_tx_timeout_task);
+
+ if (pdev->dev.of_node)
+ mac_addr = of_get_mac_address(pdev->dev.of_node);
+
+ if (mac_addr && is_valid_ether_addr(mac_addr)) {
+ ether_addr_copy(dev->dev_addr, mac_addr);
+ } else {
+ /* try reading the mac address, if set by the bootloader */
+ pxa168_eth_get_mac_address(dev, dev->dev_addr);
+ if (!is_valid_ether_addr(dev->dev_addr)) {
+ dev_info(&pdev->dev, "Using random mac address\n");
+ eth_hw_addr_random(dev);
+ }
+ }
+
+ pep->rx_ring_size = NUM_RX_DESCS;
+ pep->tx_ring_size = NUM_TX_DESCS;
+
+ pep->pd = dev_get_platdata(&pdev->dev);
+ if (pep->pd) {
+ if (pep->pd->rx_queue_size)
+ pep->rx_ring_size = pep->pd->rx_queue_size;
+
+ if (pep->pd->tx_queue_size)
+ pep->tx_ring_size = pep->pd->tx_queue_size;
+
+ pep->port_num = pep->pd->port_number;
+ pep->phy_addr = pep->pd->phy_addr;
+ pep->phy_speed = pep->pd->speed;
+ pep->phy_duplex = pep->pd->duplex;
+ pep->phy_intf = pep->pd->intf;
+
+ if (pep->pd->init)
+ pep->pd->init();
+ } else if (pdev->dev.of_node) {
+ of_property_read_u32(pdev->dev.of_node, "port-id",
+ &pep->port_num);
+
+ np = of_parse_phandle(pdev->dev.of_node, "phy-handle", 0);
+ if (!np) {
+ dev_err(&pdev->dev, "missing phy-handle\n");
+ err = -EINVAL;
+ goto err_netdev;
+ }
+ of_property_read_u32(np, "reg", &pep->phy_addr);
+ pep->phy_intf = of_get_phy_mode(pdev->dev.of_node);
+ }
+
+ /* Hardware supports only 3 ports */
+ BUG_ON(pep->port_num > 2);
+ netif_napi_add(dev, &pep->napi, pxa168_rx_poll, pep->rx_ring_size);
+
+ memset(&pep->timeout, 0, sizeof(struct timer_list));
+ init_timer(&pep->timeout);
+ pep->timeout.function = rxq_refill_timer_wrapper;
+ pep->timeout.data = (unsigned long)pep;
+
+ pep->smi_bus = mdiobus_alloc();
+ if (pep->smi_bus == NULL) {
+ err = -ENOMEM;
+ goto err_netdev;
+ }
+ pep->smi_bus->priv = pep;
+ pep->smi_bus->name = "pxa168_eth smi";
+ pep->smi_bus->read = pxa168_smi_read;
+ pep->smi_bus->write = pxa168_smi_write;
+ snprintf(pep->smi_bus->id, MII_BUS_ID_SIZE, "%s-%d",
+ pdev->name, pdev->id);
+ pep->smi_bus->parent = &pdev->dev;
+ pep->smi_bus->phy_mask = 0xffffffff;
+ err = mdiobus_register(pep->smi_bus);
+ if (err)
+ goto err_free_mdio;
+
+ SET_NETDEV_DEV(dev, &pdev->dev);
+ pxa168_init_hw(pep);
+ err = register_netdev(dev);
+ if (err)
+ goto err_mdiobus;
+ return 0;
+
+err_mdiobus:
+ mdiobus_unregister(pep->smi_bus);
+err_free_mdio:
+ mdiobus_free(pep->smi_bus);
+err_netdev:
+ free_netdev(dev);
+err_clk:
+ clk_disable_unprepare(clk);
+ return err;
+}
+
+static int pxa168_eth_remove(struct platform_device *pdev)
+{
+ struct net_device *dev = platform_get_drvdata(pdev);
+ struct pxa168_eth_private *pep = netdev_priv(dev);
+
+ if (pep->htpr) {
+ dma_free_coherent(pep->dev->dev.parent, HASH_ADDR_TABLE_SIZE,
+ pep->htpr, pep->htpr_dma);
+ pep->htpr = NULL;
+ }
+ if (pep->phy)
+ phy_disconnect(pep->phy);
+ if (pep->clk) {
+ clk_disable_unprepare(pep->clk);
+ }
+
+ mdiobus_unregister(pep->smi_bus);
+ mdiobus_free(pep->smi_bus);
+ unregister_netdev(dev);
+ cancel_work_sync(&pep->tx_timeout_task);
+ free_netdev(dev);
+ return 0;
+}
+
+static void pxa168_eth_shutdown(struct platform_device *pdev)
+{
+ struct net_device *dev = platform_get_drvdata(pdev);
+ eth_port_reset(dev);
+}
+
+#ifdef CONFIG_PM
+static int pxa168_eth_resume(struct platform_device *pdev)
+{
+ return -ENOSYS;
+}
+
+static int pxa168_eth_suspend(struct platform_device *pdev, pm_message_t state)
+{
+ return -ENOSYS;
+}
+
+#else
+#define pxa168_eth_resume NULL
+#define pxa168_eth_suspend NULL
+#endif
+
+static const struct of_device_id pxa168_eth_of_match[] = {
+ { .compatible = "marvell,pxa168-eth" },
+ { },
+};
+MODULE_DEVICE_TABLE(of, pxa168_eth_of_match);
+
+static struct platform_driver pxa168_eth_driver = {
+ .probe = pxa168_eth_probe,
+ .remove = pxa168_eth_remove,
+ .shutdown = pxa168_eth_shutdown,
+ .resume = pxa168_eth_resume,
+ .suspend = pxa168_eth_suspend,
+ .driver = {
+ .name = DRIVER_NAME,
+ .of_match_table = of_match_ptr(pxa168_eth_of_match),
+ },
+};
+
+module_platform_driver(pxa168_eth_driver);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Ethernet driver for Marvell PXA168");
+MODULE_ALIAS("platform:pxa168_eth");
diff --git a/drivers/net/ethernet/marvell/skge.c b/drivers/net/ethernet/marvell/skge.c
new file mode 100644
index 000000000..7173836fe
--- /dev/null
+++ b/drivers/net/ethernet/marvell/skge.c
@@ -0,0 +1,4226 @@
+/*
+ * New driver for Marvell Yukon chipset and SysKonnect Gigabit
+ * Ethernet adapters. Based on earlier sk98lin, e100 and
+ * FreeBSD if_sk drivers.
+ *
+ * This driver intentionally does not support all the features
+ * of the original driver such as link fail-over and link management because
+ * those should be done at higher levels.
+ *
+ * Copyright (C) 2004, 2005 Stephen Hemminger <shemminger@osdl.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/in.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/ethtool.h>
+#include <linux/pci.h>
+#include <linux/if_vlan.h>
+#include <linux/ip.h>
+#include <linux/delay.h>
+#include <linux/crc32.h>
+#include <linux/dma-mapping.h>
+#include <linux/debugfs.h>
+#include <linux/sched.h>
+#include <linux/seq_file.h>
+#include <linux/mii.h>
+#include <linux/slab.h>
+#include <linux/dmi.h>
+#include <linux/prefetch.h>
+#include <asm/irq.h>
+
+#include "skge.h"
+
+#define DRV_NAME "skge"
+#define DRV_VERSION "1.14"
+
+#define DEFAULT_TX_RING_SIZE 128
+#define DEFAULT_RX_RING_SIZE 512
+#define MAX_TX_RING_SIZE 1024
+#define TX_LOW_WATER (MAX_SKB_FRAGS + 1)
+#define MAX_RX_RING_SIZE 4096
+#define RX_COPY_THRESHOLD 128
+#define RX_BUF_SIZE 1536
+#define PHY_RETRIES 1000
+#define ETH_JUMBO_MTU 9000
+#define TX_WATCHDOG (5 * HZ)
+#define NAPI_WEIGHT 64
+#define BLINK_MS 250
+#define LINK_HZ HZ
+
+#define SKGE_EEPROM_MAGIC 0x9933aabb
+
+
+MODULE_DESCRIPTION("SysKonnect Gigabit Ethernet driver");
+MODULE_AUTHOR("Stephen Hemminger <shemminger@linux-foundation.org>");
+MODULE_LICENSE("GPL");
+MODULE_VERSION(DRV_VERSION);
+
+static const u32 default_msg = (NETIF_MSG_DRV | NETIF_MSG_PROBE |
+ NETIF_MSG_LINK | NETIF_MSG_IFUP |
+ NETIF_MSG_IFDOWN);
+
+static int debug = -1; /* defaults above */
+module_param(debug, int, 0);
+MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)");
+
+static const struct pci_device_id skge_id_table[] = {
+ { PCI_DEVICE(PCI_VENDOR_ID_3COM, 0x1700) }, /* 3Com 3C940 */
+ { PCI_DEVICE(PCI_VENDOR_ID_3COM, 0x80EB) }, /* 3Com 3C940B */
+#ifdef CONFIG_SKGE_GENESIS
+ { PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, 0x4300) }, /* SK-9xx */
+#endif
+ { PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, 0x4320) }, /* SK-98xx V2.0 */
+ { PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x4b01) }, /* D-Link DGE-530T (rev.B) */
+ { PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x4c00) }, /* D-Link DGE-530T */
+ { PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x4302) }, /* D-Link DGE-530T Rev C1 */
+ { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4320) }, /* Marvell Yukon 88E8001/8003/8010 */
+ { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x5005) }, /* Belkin */
+ { PCI_DEVICE(PCI_VENDOR_ID_CNET, 0x434E) }, /* CNet PowerG-2000 */
+ { PCI_DEVICE(PCI_VENDOR_ID_LINKSYS, 0x1064) }, /* Linksys EG1064 v2 */
+ { PCI_VENDOR_ID_LINKSYS, 0x1032, PCI_ANY_ID, 0x0015 }, /* Linksys EG1032 v2 */
+ { 0 }
+};
+MODULE_DEVICE_TABLE(pci, skge_id_table);
+
+static int skge_up(struct net_device *dev);
+static int skge_down(struct net_device *dev);
+static void skge_phy_reset(struct skge_port *skge);
+static void skge_tx_clean(struct net_device *dev);
+static int xm_phy_write(struct skge_hw *hw, int port, u16 reg, u16 val);
+static int gm_phy_write(struct skge_hw *hw, int port, u16 reg, u16 val);
+static void genesis_get_stats(struct skge_port *skge, u64 *data);
+static void yukon_get_stats(struct skge_port *skge, u64 *data);
+static void yukon_init(struct skge_hw *hw, int port);
+static void genesis_mac_init(struct skge_hw *hw, int port);
+static void genesis_link_up(struct skge_port *skge);
+static void skge_set_multicast(struct net_device *dev);
+static irqreturn_t skge_intr(int irq, void *dev_id);
+
+/* Avoid conditionals by using array */
+static const int txqaddr[] = { Q_XA1, Q_XA2 };
+static const int rxqaddr[] = { Q_R1, Q_R2 };
+static const u32 rxirqmask[] = { IS_R1_F, IS_R2_F };
+static const u32 txirqmask[] = { IS_XA1_F, IS_XA2_F };
+static const u32 napimask[] = { IS_R1_F|IS_XA1_F, IS_R2_F|IS_XA2_F };
+static const u32 portmask[] = { IS_PORT_1, IS_PORT_2 };
+
+static inline bool is_genesis(const struct skge_hw *hw)
+{
+#ifdef CONFIG_SKGE_GENESIS
+ return hw->chip_id == CHIP_ID_GENESIS;
+#else
+ return false;
+#endif
+}
+
+static int skge_get_regs_len(struct net_device *dev)
+{
+ return 0x4000;
+}
+
+/*
+ * Returns copy of whole control register region
+ * Note: skip RAM address register because accessing it will
+ * cause bus hangs!
+ */
+static void skge_get_regs(struct net_device *dev, struct ethtool_regs *regs,
+ void *p)
+{
+ const struct skge_port *skge = netdev_priv(dev);
+ const void __iomem *io = skge->hw->regs;
+
+ regs->version = 1;
+ memset(p, 0, regs->len);
+ memcpy_fromio(p, io, B3_RAM_ADDR);
+
+ memcpy_fromio(p + B3_RI_WTO_R1, io + B3_RI_WTO_R1,
+ regs->len - B3_RI_WTO_R1);
+}
+
+/* Wake on Lan only supported on Yukon chips with rev 1 or above */
+static u32 wol_supported(const struct skge_hw *hw)
+{
+ if (is_genesis(hw))
+ return 0;
+
+ if (hw->chip_id == CHIP_ID_YUKON && hw->chip_rev == 0)
+ return 0;
+
+ return WAKE_MAGIC | WAKE_PHY;
+}
+
+static void skge_wol_init(struct skge_port *skge)
+{
+ struct skge_hw *hw = skge->hw;
+ int port = skge->port;
+ u16 ctrl;
+
+ skge_write16(hw, B0_CTST, CS_RST_CLR);
+ skge_write16(hw, SK_REG(port, GMAC_LINK_CTRL), GMLC_RST_CLR);
+
+ /* Turn on Vaux */
+ skge_write8(hw, B0_POWER_CTRL,
+ PC_VAUX_ENA | PC_VCC_ENA | PC_VAUX_ON | PC_VCC_OFF);
+
+ /* WA code for COMA mode -- clear PHY reset */
+ if (hw->chip_id == CHIP_ID_YUKON_LITE &&
+ hw->chip_rev >= CHIP_REV_YU_LITE_A3) {
+ u32 reg = skge_read32(hw, B2_GP_IO);
+ reg |= GP_DIR_9;
+ reg &= ~GP_IO_9;
+ skge_write32(hw, B2_GP_IO, reg);
+ }
+
+ skge_write32(hw, SK_REG(port, GPHY_CTRL),
+ GPC_DIS_SLEEP |
+ GPC_HWCFG_M_3 | GPC_HWCFG_M_2 | GPC_HWCFG_M_1 | GPC_HWCFG_M_0 |
+ GPC_ANEG_1 | GPC_RST_SET);
+
+ skge_write32(hw, SK_REG(port, GPHY_CTRL),
+ GPC_DIS_SLEEP |
+ GPC_HWCFG_M_3 | GPC_HWCFG_M_2 | GPC_HWCFG_M_1 | GPC_HWCFG_M_0 |
+ GPC_ANEG_1 | GPC_RST_CLR);
+
+ skge_write32(hw, SK_REG(port, GMAC_CTRL), GMC_RST_CLR);
+
+ /* Force to 10/100 skge_reset will re-enable on resume */
+ gm_phy_write(hw, port, PHY_MARV_AUNE_ADV,
+ (PHY_AN_100FULL | PHY_AN_100HALF |
+ PHY_AN_10FULL | PHY_AN_10HALF | PHY_AN_CSMA));
+ /* no 1000 HD/FD */
+ gm_phy_write(hw, port, PHY_MARV_1000T_CTRL, 0);
+ gm_phy_write(hw, port, PHY_MARV_CTRL,
+ PHY_CT_RESET | PHY_CT_SPS_LSB | PHY_CT_ANE |
+ PHY_CT_RE_CFG | PHY_CT_DUP_MD);
+
+
+ /* Set GMAC to no flow control and auto update for speed/duplex */
+ gma_write16(hw, port, GM_GP_CTRL,
+ GM_GPCR_FC_TX_DIS|GM_GPCR_TX_ENA|GM_GPCR_RX_ENA|
+ GM_GPCR_DUP_FULL|GM_GPCR_FC_RX_DIS|GM_GPCR_AU_FCT_DIS);
+
+ /* Set WOL address */
+ memcpy_toio(hw->regs + WOL_REGS(port, WOL_MAC_ADDR),
+ skge->netdev->dev_addr, ETH_ALEN);
+
+ /* Turn on appropriate WOL control bits */
+ skge_write16(hw, WOL_REGS(port, WOL_CTRL_STAT), WOL_CTL_CLEAR_RESULT);
+ ctrl = 0;
+ if (skge->wol & WAKE_PHY)
+ ctrl |= WOL_CTL_ENA_PME_ON_LINK_CHG|WOL_CTL_ENA_LINK_CHG_UNIT;
+ else
+ ctrl |= WOL_CTL_DIS_PME_ON_LINK_CHG|WOL_CTL_DIS_LINK_CHG_UNIT;
+
+ if (skge->wol & WAKE_MAGIC)
+ ctrl |= WOL_CTL_ENA_PME_ON_MAGIC_PKT|WOL_CTL_ENA_MAGIC_PKT_UNIT;
+ else
+ ctrl |= WOL_CTL_DIS_PME_ON_MAGIC_PKT|WOL_CTL_DIS_MAGIC_PKT_UNIT;
+
+ ctrl |= WOL_CTL_DIS_PME_ON_PATTERN|WOL_CTL_DIS_PATTERN_UNIT;
+ skge_write16(hw, WOL_REGS(port, WOL_CTRL_STAT), ctrl);
+
+ /* block receiver */
+ skge_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_SET);
+}
+
+static void skge_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
+{
+ struct skge_port *skge = netdev_priv(dev);
+
+ wol->supported = wol_supported(skge->hw);
+ wol->wolopts = skge->wol;
+}
+
+static int skge_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
+{
+ struct skge_port *skge = netdev_priv(dev);
+ struct skge_hw *hw = skge->hw;
+
+ if ((wol->wolopts & ~wol_supported(hw)) ||
+ !device_can_wakeup(&hw->pdev->dev))
+ return -EOPNOTSUPP;
+
+ skge->wol = wol->wolopts;
+
+ device_set_wakeup_enable(&hw->pdev->dev, skge->wol);
+
+ return 0;
+}
+
+/* Determine supported/advertised modes based on hardware.
+ * Note: ethtool ADVERTISED_xxx == SUPPORTED_xxx
+ */
+static u32 skge_supported_modes(const struct skge_hw *hw)
+{
+ u32 supported;
+
+ if (hw->copper) {
+ supported = (SUPPORTED_10baseT_Half |
+ SUPPORTED_10baseT_Full |
+ SUPPORTED_100baseT_Half |
+ SUPPORTED_100baseT_Full |
+ SUPPORTED_1000baseT_Half |
+ SUPPORTED_1000baseT_Full |
+ SUPPORTED_Autoneg |
+ SUPPORTED_TP);
+
+ if (is_genesis(hw))
+ supported &= ~(SUPPORTED_10baseT_Half |
+ SUPPORTED_10baseT_Full |
+ SUPPORTED_100baseT_Half |
+ SUPPORTED_100baseT_Full);
+
+ else if (hw->chip_id == CHIP_ID_YUKON)
+ supported &= ~SUPPORTED_1000baseT_Half;
+ } else
+ supported = (SUPPORTED_1000baseT_Full |
+ SUPPORTED_1000baseT_Half |
+ SUPPORTED_FIBRE |
+ SUPPORTED_Autoneg);
+
+ return supported;
+}
+
+static int skge_get_settings(struct net_device *dev,
+ struct ethtool_cmd *ecmd)
+{
+ struct skge_port *skge = netdev_priv(dev);
+ struct skge_hw *hw = skge->hw;
+
+ ecmd->transceiver = XCVR_INTERNAL;
+ ecmd->supported = skge_supported_modes(hw);
+
+ if (hw->copper) {
+ ecmd->port = PORT_TP;
+ ecmd->phy_address = hw->phy_addr;
+ } else
+ ecmd->port = PORT_FIBRE;
+
+ ecmd->advertising = skge->advertising;
+ ecmd->autoneg = skge->autoneg;
+ ethtool_cmd_speed_set(ecmd, skge->speed);
+ ecmd->duplex = skge->duplex;
+ return 0;
+}
+
+static int skge_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
+{
+ struct skge_port *skge = netdev_priv(dev);
+ const struct skge_hw *hw = skge->hw;
+ u32 supported = skge_supported_modes(hw);
+ int err = 0;
+
+ if (ecmd->autoneg == AUTONEG_ENABLE) {
+ ecmd->advertising = supported;
+ skge->duplex = -1;
+ skge->speed = -1;
+ } else {
+ u32 setting;
+ u32 speed = ethtool_cmd_speed(ecmd);
+
+ switch (speed) {
+ case SPEED_1000:
+ if (ecmd->duplex == DUPLEX_FULL)
+ setting = SUPPORTED_1000baseT_Full;
+ else if (ecmd->duplex == DUPLEX_HALF)
+ setting = SUPPORTED_1000baseT_Half;
+ else
+ return -EINVAL;
+ break;
+ case SPEED_100:
+ if (ecmd->duplex == DUPLEX_FULL)
+ setting = SUPPORTED_100baseT_Full;
+ else if (ecmd->duplex == DUPLEX_HALF)
+ setting = SUPPORTED_100baseT_Half;
+ else
+ return -EINVAL;
+ break;
+
+ case SPEED_10:
+ if (ecmd->duplex == DUPLEX_FULL)
+ setting = SUPPORTED_10baseT_Full;
+ else if (ecmd->duplex == DUPLEX_HALF)
+ setting = SUPPORTED_10baseT_Half;
+ else
+ return -EINVAL;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ if ((setting & supported) == 0)
+ return -EINVAL;
+
+ skge->speed = speed;
+ skge->duplex = ecmd->duplex;
+ }
+
+ skge->autoneg = ecmd->autoneg;
+ skge->advertising = ecmd->advertising;
+
+ if (netif_running(dev)) {
+ skge_down(dev);
+ err = skge_up(dev);
+ if (err) {
+ dev_close(dev);
+ return err;
+ }
+ }
+
+ return 0;
+}
+
+static void skge_get_drvinfo(struct net_device *dev,
+ struct ethtool_drvinfo *info)
+{
+ struct skge_port *skge = netdev_priv(dev);
+
+ strlcpy(info->driver, DRV_NAME, sizeof(info->driver));
+ strlcpy(info->version, DRV_VERSION, sizeof(info->version));
+ strlcpy(info->bus_info, pci_name(skge->hw->pdev),
+ sizeof(info->bus_info));
+}
+
+static const struct skge_stat {
+ char name[ETH_GSTRING_LEN];
+ u16 xmac_offset;
+ u16 gma_offset;
+} skge_stats[] = {
+ { "tx_bytes", XM_TXO_OK_HI, GM_TXO_OK_HI },
+ { "rx_bytes", XM_RXO_OK_HI, GM_RXO_OK_HI },
+
+ { "tx_broadcast", XM_TXF_BC_OK, GM_TXF_BC_OK },
+ { "rx_broadcast", XM_RXF_BC_OK, GM_RXF_BC_OK },
+ { "tx_multicast", XM_TXF_MC_OK, GM_TXF_MC_OK },
+ { "rx_multicast", XM_RXF_MC_OK, GM_RXF_MC_OK },
+ { "tx_unicast", XM_TXF_UC_OK, GM_TXF_UC_OK },
+ { "rx_unicast", XM_RXF_UC_OK, GM_RXF_UC_OK },
+ { "tx_mac_pause", XM_TXF_MPAUSE, GM_TXF_MPAUSE },
+ { "rx_mac_pause", XM_RXF_MPAUSE, GM_RXF_MPAUSE },
+
+ { "collisions", XM_TXF_SNG_COL, GM_TXF_SNG_COL },
+ { "multi_collisions", XM_TXF_MUL_COL, GM_TXF_MUL_COL },
+ { "aborted", XM_TXF_ABO_COL, GM_TXF_ABO_COL },
+ { "late_collision", XM_TXF_LAT_COL, GM_TXF_LAT_COL },
+ { "fifo_underrun", XM_TXE_FIFO_UR, GM_TXE_FIFO_UR },
+ { "fifo_overflow", XM_RXE_FIFO_OV, GM_RXE_FIFO_OV },
+
+ { "rx_toolong", XM_RXF_LNG_ERR, GM_RXF_LNG_ERR },
+ { "rx_jabber", XM_RXF_JAB_PKT, GM_RXF_JAB_PKT },
+ { "rx_runt", XM_RXE_RUNT, GM_RXE_FRAG },
+ { "rx_too_long", XM_RXF_LNG_ERR, GM_RXF_LNG_ERR },
+ { "rx_fcs_error", XM_RXF_FCS_ERR, GM_RXF_FCS_ERR },
+};
+
+static int skge_get_sset_count(struct net_device *dev, int sset)
+{
+ switch (sset) {
+ case ETH_SS_STATS:
+ return ARRAY_SIZE(skge_stats);
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+static void skge_get_ethtool_stats(struct net_device *dev,
+ struct ethtool_stats *stats, u64 *data)
+{
+ struct skge_port *skge = netdev_priv(dev);
+
+ if (is_genesis(skge->hw))
+ genesis_get_stats(skge, data);
+ else
+ yukon_get_stats(skge, data);
+}
+
+/* Use hardware MIB variables for critical path statistics and
+ * transmit feedback not reported at interrupt.
+ * Other errors are accounted for in interrupt handler.
+ */
+static struct net_device_stats *skge_get_stats(struct net_device *dev)
+{
+ struct skge_port *skge = netdev_priv(dev);
+ u64 data[ARRAY_SIZE(skge_stats)];
+
+ if (is_genesis(skge->hw))
+ genesis_get_stats(skge, data);
+ else
+ yukon_get_stats(skge, data);
+
+ dev->stats.tx_bytes = data[0];
+ dev->stats.rx_bytes = data[1];
+ dev->stats.tx_packets = data[2] + data[4] + data[6];
+ dev->stats.rx_packets = data[3] + data[5] + data[7];
+ dev->stats.multicast = data[3] + data[5];
+ dev->stats.collisions = data[10];
+ dev->stats.tx_aborted_errors = data[12];
+
+ return &dev->stats;
+}
+
+static void skge_get_strings(struct net_device *dev, u32 stringset, u8 *data)
+{
+ int i;
+
+ switch (stringset) {
+ case ETH_SS_STATS:
+ for (i = 0; i < ARRAY_SIZE(skge_stats); i++)
+ memcpy(data + i * ETH_GSTRING_LEN,
+ skge_stats[i].name, ETH_GSTRING_LEN);
+ break;
+ }
+}
+
+static void skge_get_ring_param(struct net_device *dev,
+ struct ethtool_ringparam *p)
+{
+ struct skge_port *skge = netdev_priv(dev);
+
+ p->rx_max_pending = MAX_RX_RING_SIZE;
+ p->tx_max_pending = MAX_TX_RING_SIZE;
+
+ p->rx_pending = skge->rx_ring.count;
+ p->tx_pending = skge->tx_ring.count;
+}
+
+static int skge_set_ring_param(struct net_device *dev,
+ struct ethtool_ringparam *p)
+{
+ struct skge_port *skge = netdev_priv(dev);
+ int err = 0;
+
+ if (p->rx_pending == 0 || p->rx_pending > MAX_RX_RING_SIZE ||
+ p->tx_pending < TX_LOW_WATER || p->tx_pending > MAX_TX_RING_SIZE)
+ return -EINVAL;
+
+ skge->rx_ring.count = p->rx_pending;
+ skge->tx_ring.count = p->tx_pending;
+
+ if (netif_running(dev)) {
+ skge_down(dev);
+ err = skge_up(dev);
+ if (err)
+ dev_close(dev);
+ }
+
+ return err;
+}
+
+static u32 skge_get_msglevel(struct net_device *netdev)
+{
+ struct skge_port *skge = netdev_priv(netdev);
+ return skge->msg_enable;
+}
+
+static void skge_set_msglevel(struct net_device *netdev, u32 value)
+{
+ struct skge_port *skge = netdev_priv(netdev);
+ skge->msg_enable = value;
+}
+
+static int skge_nway_reset(struct net_device *dev)
+{
+ struct skge_port *skge = netdev_priv(dev);
+
+ if (skge->autoneg != AUTONEG_ENABLE || !netif_running(dev))
+ return -EINVAL;
+
+ skge_phy_reset(skge);
+ return 0;
+}
+
+static void skge_get_pauseparam(struct net_device *dev,
+ struct ethtool_pauseparam *ecmd)
+{
+ struct skge_port *skge = netdev_priv(dev);
+
+ ecmd->rx_pause = ((skge->flow_control == FLOW_MODE_SYMMETRIC) ||
+ (skge->flow_control == FLOW_MODE_SYM_OR_REM));
+ ecmd->tx_pause = (ecmd->rx_pause ||
+ (skge->flow_control == FLOW_MODE_LOC_SEND));
+
+ ecmd->autoneg = ecmd->rx_pause || ecmd->tx_pause;
+}
+
+static int skge_set_pauseparam(struct net_device *dev,
+ struct ethtool_pauseparam *ecmd)
+{
+ struct skge_port *skge = netdev_priv(dev);
+ struct ethtool_pauseparam old;
+ int err = 0;
+
+ skge_get_pauseparam(dev, &old);
+
+ if (ecmd->autoneg != old.autoneg)
+ skge->flow_control = ecmd->autoneg ? FLOW_MODE_NONE : FLOW_MODE_SYMMETRIC;
+ else {
+ if (ecmd->rx_pause && ecmd->tx_pause)
+ skge->flow_control = FLOW_MODE_SYMMETRIC;
+ else if (ecmd->rx_pause && !ecmd->tx_pause)
+ skge->flow_control = FLOW_MODE_SYM_OR_REM;
+ else if (!ecmd->rx_pause && ecmd->tx_pause)
+ skge->flow_control = FLOW_MODE_LOC_SEND;
+ else
+ skge->flow_control = FLOW_MODE_NONE;
+ }
+
+ if (netif_running(dev)) {
+ skge_down(dev);
+ err = skge_up(dev);
+ if (err) {
+ dev_close(dev);
+ return err;
+ }
+ }
+
+ return 0;
+}
+
+/* Chip internal frequency for clock calculations */
+static inline u32 hwkhz(const struct skge_hw *hw)
+{
+ return is_genesis(hw) ? 53125 : 78125;
+}
+
+/* Chip HZ to microseconds */
+static inline u32 skge_clk2usec(const struct skge_hw *hw, u32 ticks)
+{
+ return (ticks * 1000) / hwkhz(hw);
+}
+
+/* Microseconds to chip HZ */
+static inline u32 skge_usecs2clk(const struct skge_hw *hw, u32 usec)
+{
+ return hwkhz(hw) * usec / 1000;
+}
+
+static int skge_get_coalesce(struct net_device *dev,
+ struct ethtool_coalesce *ecmd)
+{
+ struct skge_port *skge = netdev_priv(dev);
+ struct skge_hw *hw = skge->hw;
+ int port = skge->port;
+
+ ecmd->rx_coalesce_usecs = 0;
+ ecmd->tx_coalesce_usecs = 0;
+
+ if (skge_read32(hw, B2_IRQM_CTRL) & TIM_START) {
+ u32 delay = skge_clk2usec(hw, skge_read32(hw, B2_IRQM_INI));
+ u32 msk = skge_read32(hw, B2_IRQM_MSK);
+
+ if (msk & rxirqmask[port])
+ ecmd->rx_coalesce_usecs = delay;
+ if (msk & txirqmask[port])
+ ecmd->tx_coalesce_usecs = delay;
+ }
+
+ return 0;
+}
+
+/* Note: interrupt timer is per board, but can turn on/off per port */
+static int skge_set_coalesce(struct net_device *dev,
+ struct ethtool_coalesce *ecmd)
+{
+ struct skge_port *skge = netdev_priv(dev);
+ struct skge_hw *hw = skge->hw;
+ int port = skge->port;
+ u32 msk = skge_read32(hw, B2_IRQM_MSK);
+ u32 delay = 25;
+
+ if (ecmd->rx_coalesce_usecs == 0)
+ msk &= ~rxirqmask[port];
+ else if (ecmd->rx_coalesce_usecs < 25 ||
+ ecmd->rx_coalesce_usecs > 33333)
+ return -EINVAL;
+ else {
+ msk |= rxirqmask[port];
+ delay = ecmd->rx_coalesce_usecs;
+ }
+
+ if (ecmd->tx_coalesce_usecs == 0)
+ msk &= ~txirqmask[port];
+ else if (ecmd->tx_coalesce_usecs < 25 ||
+ ecmd->tx_coalesce_usecs > 33333)
+ return -EINVAL;
+ else {
+ msk |= txirqmask[port];
+ delay = min(delay, ecmd->rx_coalesce_usecs);
+ }
+
+ skge_write32(hw, B2_IRQM_MSK, msk);
+ if (msk == 0)
+ skge_write32(hw, B2_IRQM_CTRL, TIM_STOP);
+ else {
+ skge_write32(hw, B2_IRQM_INI, skge_usecs2clk(hw, delay));
+ skge_write32(hw, B2_IRQM_CTRL, TIM_START);
+ }
+ return 0;
+}
+
+enum led_mode { LED_MODE_OFF, LED_MODE_ON, LED_MODE_TST };
+static void skge_led(struct skge_port *skge, enum led_mode mode)
+{
+ struct skge_hw *hw = skge->hw;
+ int port = skge->port;
+
+ spin_lock_bh(&hw->phy_lock);
+ if (is_genesis(hw)) {
+ switch (mode) {
+ case LED_MODE_OFF:
+ if (hw->phy_type == SK_PHY_BCOM)
+ xm_phy_write(hw, port, PHY_BCOM_P_EXT_CTRL, PHY_B_PEC_LED_OFF);
+ else {
+ skge_write32(hw, SK_REG(port, TX_LED_VAL), 0);
+ skge_write8(hw, SK_REG(port, TX_LED_CTRL), LED_T_OFF);
+ }
+ skge_write8(hw, SK_REG(port, LNK_LED_REG), LINKLED_OFF);
+ skge_write32(hw, SK_REG(port, RX_LED_VAL), 0);
+ skge_write8(hw, SK_REG(port, RX_LED_CTRL), LED_T_OFF);
+ break;
+
+ case LED_MODE_ON:
+ skge_write8(hw, SK_REG(port, LNK_LED_REG), LINKLED_ON);
+ skge_write8(hw, SK_REG(port, LNK_LED_REG), LINKLED_LINKSYNC_ON);
+
+ skge_write8(hw, SK_REG(port, RX_LED_CTRL), LED_START);
+ skge_write8(hw, SK_REG(port, TX_LED_CTRL), LED_START);
+
+ break;
+
+ case LED_MODE_TST:
+ skge_write8(hw, SK_REG(port, RX_LED_TST), LED_T_ON);
+ skge_write32(hw, SK_REG(port, RX_LED_VAL), 100);
+ skge_write8(hw, SK_REG(port, RX_LED_CTRL), LED_START);
+
+ if (hw->phy_type == SK_PHY_BCOM)
+ xm_phy_write(hw, port, PHY_BCOM_P_EXT_CTRL, PHY_B_PEC_LED_ON);
+ else {
+ skge_write8(hw, SK_REG(port, TX_LED_TST), LED_T_ON);
+ skge_write32(hw, SK_REG(port, TX_LED_VAL), 100);
+ skge_write8(hw, SK_REG(port, TX_LED_CTRL), LED_START);
+ }
+
+ }
+ } else {
+ switch (mode) {
+ case LED_MODE_OFF:
+ gm_phy_write(hw, port, PHY_MARV_LED_CTRL, 0);
+ gm_phy_write(hw, port, PHY_MARV_LED_OVER,
+ PHY_M_LED_MO_DUP(MO_LED_OFF) |
+ PHY_M_LED_MO_10(MO_LED_OFF) |
+ PHY_M_LED_MO_100(MO_LED_OFF) |
+ PHY_M_LED_MO_1000(MO_LED_OFF) |
+ PHY_M_LED_MO_RX(MO_LED_OFF));
+ break;
+ case LED_MODE_ON:
+ gm_phy_write(hw, port, PHY_MARV_LED_CTRL,
+ PHY_M_LED_PULS_DUR(PULS_170MS) |
+ PHY_M_LED_BLINK_RT(BLINK_84MS) |
+ PHY_M_LEDC_TX_CTRL |
+ PHY_M_LEDC_DP_CTRL);
+
+ gm_phy_write(hw, port, PHY_MARV_LED_OVER,
+ PHY_M_LED_MO_RX(MO_LED_OFF) |
+ (skge->speed == SPEED_100 ?
+ PHY_M_LED_MO_100(MO_LED_ON) : 0));
+ break;
+ case LED_MODE_TST:
+ gm_phy_write(hw, port, PHY_MARV_LED_CTRL, 0);
+ gm_phy_write(hw, port, PHY_MARV_LED_OVER,
+ PHY_M_LED_MO_DUP(MO_LED_ON) |
+ PHY_M_LED_MO_10(MO_LED_ON) |
+ PHY_M_LED_MO_100(MO_LED_ON) |
+ PHY_M_LED_MO_1000(MO_LED_ON) |
+ PHY_M_LED_MO_RX(MO_LED_ON));
+ }
+ }
+ spin_unlock_bh(&hw->phy_lock);
+}
+
+/* blink LED's for finding board */
+static int skge_set_phys_id(struct net_device *dev,
+ enum ethtool_phys_id_state state)
+{
+ struct skge_port *skge = netdev_priv(dev);
+
+ switch (state) {
+ case ETHTOOL_ID_ACTIVE:
+ return 2; /* cycle on/off twice per second */
+
+ case ETHTOOL_ID_ON:
+ skge_led(skge, LED_MODE_TST);
+ break;
+
+ case ETHTOOL_ID_OFF:
+ skge_led(skge, LED_MODE_OFF);
+ break;
+
+ case ETHTOOL_ID_INACTIVE:
+ /* back to regular LED state */
+ skge_led(skge, netif_running(dev) ? LED_MODE_ON : LED_MODE_OFF);
+ }
+
+ return 0;
+}
+
+static int skge_get_eeprom_len(struct net_device *dev)
+{
+ struct skge_port *skge = netdev_priv(dev);
+ u32 reg2;
+
+ pci_read_config_dword(skge->hw->pdev, PCI_DEV_REG2, &reg2);
+ return 1 << (((reg2 & PCI_VPD_ROM_SZ) >> 14) + 8);
+}
+
+static u32 skge_vpd_read(struct pci_dev *pdev, int cap, u16 offset)
+{
+ u32 val;
+
+ pci_write_config_word(pdev, cap + PCI_VPD_ADDR, offset);
+
+ do {
+ pci_read_config_word(pdev, cap + PCI_VPD_ADDR, &offset);
+ } while (!(offset & PCI_VPD_ADDR_F));
+
+ pci_read_config_dword(pdev, cap + PCI_VPD_DATA, &val);
+ return val;
+}
+
+static void skge_vpd_write(struct pci_dev *pdev, int cap, u16 offset, u32 val)
+{
+ pci_write_config_dword(pdev, cap + PCI_VPD_DATA, val);
+ pci_write_config_word(pdev, cap + PCI_VPD_ADDR,
+ offset | PCI_VPD_ADDR_F);
+
+ do {
+ pci_read_config_word(pdev, cap + PCI_VPD_ADDR, &offset);
+ } while (offset & PCI_VPD_ADDR_F);
+}
+
+static int skge_get_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom,
+ u8 *data)
+{
+ struct skge_port *skge = netdev_priv(dev);
+ struct pci_dev *pdev = skge->hw->pdev;
+ int cap = pci_find_capability(pdev, PCI_CAP_ID_VPD);
+ int length = eeprom->len;
+ u16 offset = eeprom->offset;
+
+ if (!cap)
+ return -EINVAL;
+
+ eeprom->magic = SKGE_EEPROM_MAGIC;
+
+ while (length > 0) {
+ u32 val = skge_vpd_read(pdev, cap, offset);
+ int n = min_t(int, length, sizeof(val));
+
+ memcpy(data, &val, n);
+ length -= n;
+ data += n;
+ offset += n;
+ }
+ return 0;
+}
+
+static int skge_set_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom,
+ u8 *data)
+{
+ struct skge_port *skge = netdev_priv(dev);
+ struct pci_dev *pdev = skge->hw->pdev;
+ int cap = pci_find_capability(pdev, PCI_CAP_ID_VPD);
+ int length = eeprom->len;
+ u16 offset = eeprom->offset;
+
+ if (!cap)
+ return -EINVAL;
+
+ if (eeprom->magic != SKGE_EEPROM_MAGIC)
+ return -EINVAL;
+
+ while (length > 0) {
+ u32 val;
+ int n = min_t(int, length, sizeof(val));
+
+ if (n < sizeof(val))
+ val = skge_vpd_read(pdev, cap, offset);
+ memcpy(&val, data, n);
+
+ skge_vpd_write(pdev, cap, offset, val);
+
+ length -= n;
+ data += n;
+ offset += n;
+ }
+ return 0;
+}
+
+static const struct ethtool_ops skge_ethtool_ops = {
+ .get_settings = skge_get_settings,
+ .set_settings = skge_set_settings,
+ .get_drvinfo = skge_get_drvinfo,
+ .get_regs_len = skge_get_regs_len,
+ .get_regs = skge_get_regs,
+ .get_wol = skge_get_wol,
+ .set_wol = skge_set_wol,
+ .get_msglevel = skge_get_msglevel,
+ .set_msglevel = skge_set_msglevel,
+ .nway_reset = skge_nway_reset,
+ .get_link = ethtool_op_get_link,
+ .get_eeprom_len = skge_get_eeprom_len,
+ .get_eeprom = skge_get_eeprom,
+ .set_eeprom = skge_set_eeprom,
+ .get_ringparam = skge_get_ring_param,
+ .set_ringparam = skge_set_ring_param,
+ .get_pauseparam = skge_get_pauseparam,
+ .set_pauseparam = skge_set_pauseparam,
+ .get_coalesce = skge_get_coalesce,
+ .set_coalesce = skge_set_coalesce,
+ .get_strings = skge_get_strings,
+ .set_phys_id = skge_set_phys_id,
+ .get_sset_count = skge_get_sset_count,
+ .get_ethtool_stats = skge_get_ethtool_stats,
+};
+
+/*
+ * Allocate ring elements and chain them together
+ * One-to-one association of board descriptors with ring elements
+ */
+static int skge_ring_alloc(struct skge_ring *ring, void *vaddr, u32 base)
+{
+ struct skge_tx_desc *d;
+ struct skge_element *e;
+ int i;
+
+ ring->start = kcalloc(ring->count, sizeof(*e), GFP_KERNEL);
+ if (!ring->start)
+ return -ENOMEM;
+
+ for (i = 0, e = ring->start, d = vaddr; i < ring->count; i++, e++, d++) {
+ e->desc = d;
+ if (i == ring->count - 1) {
+ e->next = ring->start;
+ d->next_offset = base;
+ } else {
+ e->next = e + 1;
+ d->next_offset = base + (i+1) * sizeof(*d);
+ }
+ }
+ ring->to_use = ring->to_clean = ring->start;
+
+ return 0;
+}
+
+/* Allocate and setup a new buffer for receiving */
+static int skge_rx_setup(struct skge_port *skge, struct skge_element *e,
+ struct sk_buff *skb, unsigned int bufsize)
+{
+ struct skge_rx_desc *rd = e->desc;
+ dma_addr_t map;
+
+ map = pci_map_single(skge->hw->pdev, skb->data, bufsize,
+ PCI_DMA_FROMDEVICE);
+
+ if (pci_dma_mapping_error(skge->hw->pdev, map))
+ return -1;
+
+ rd->dma_lo = lower_32_bits(map);
+ rd->dma_hi = upper_32_bits(map);
+ e->skb = skb;
+ rd->csum1_start = ETH_HLEN;
+ rd->csum2_start = ETH_HLEN;
+ rd->csum1 = 0;
+ rd->csum2 = 0;
+
+ wmb();
+
+ rd->control = BMU_OWN | BMU_STF | BMU_IRQ_EOF | BMU_TCP_CHECK | bufsize;
+ dma_unmap_addr_set(e, mapaddr, map);
+ dma_unmap_len_set(e, maplen, bufsize);
+ return 0;
+}
+
+/* Resume receiving using existing skb,
+ * Note: DMA address is not changed by chip.
+ * MTU not changed while receiver active.
+ */
+static inline void skge_rx_reuse(struct skge_element *e, unsigned int size)
+{
+ struct skge_rx_desc *rd = e->desc;
+
+ rd->csum2 = 0;
+ rd->csum2_start = ETH_HLEN;
+
+ wmb();
+
+ rd->control = BMU_OWN | BMU_STF | BMU_IRQ_EOF | BMU_TCP_CHECK | size;
+}
+
+
+/* Free all buffers in receive ring, assumes receiver stopped */
+static void skge_rx_clean(struct skge_port *skge)
+{
+ struct skge_hw *hw = skge->hw;
+ struct skge_ring *ring = &skge->rx_ring;
+ struct skge_element *e;
+
+ e = ring->start;
+ do {
+ struct skge_rx_desc *rd = e->desc;
+ rd->control = 0;
+ if (e->skb) {
+ pci_unmap_single(hw->pdev,
+ dma_unmap_addr(e, mapaddr),
+ dma_unmap_len(e, maplen),
+ PCI_DMA_FROMDEVICE);
+ dev_kfree_skb(e->skb);
+ e->skb = NULL;
+ }
+ } while ((e = e->next) != ring->start);
+}
+
+
+/* Allocate buffers for receive ring
+ * For receive: to_clean is next received frame.
+ */
+static int skge_rx_fill(struct net_device *dev)
+{
+ struct skge_port *skge = netdev_priv(dev);
+ struct skge_ring *ring = &skge->rx_ring;
+ struct skge_element *e;
+
+ e = ring->start;
+ do {
+ struct sk_buff *skb;
+
+ skb = __netdev_alloc_skb(dev, skge->rx_buf_size + NET_IP_ALIGN,
+ GFP_KERNEL);
+ if (!skb)
+ return -ENOMEM;
+
+ skb_reserve(skb, NET_IP_ALIGN);
+ if (skge_rx_setup(skge, e, skb, skge->rx_buf_size) < 0) {
+ dev_kfree_skb(skb);
+ return -EIO;
+ }
+ } while ((e = e->next) != ring->start);
+
+ ring->to_clean = ring->start;
+ return 0;
+}
+
+static const char *skge_pause(enum pause_status status)
+{
+ switch (status) {
+ case FLOW_STAT_NONE:
+ return "none";
+ case FLOW_STAT_REM_SEND:
+ return "rx only";
+ case FLOW_STAT_LOC_SEND:
+ return "tx_only";
+ case FLOW_STAT_SYMMETRIC: /* Both station may send PAUSE */
+ return "both";
+ default:
+ return "indeterminated";
+ }
+}
+
+
+static void skge_link_up(struct skge_port *skge)
+{
+ skge_write8(skge->hw, SK_REG(skge->port, LNK_LED_REG),
+ LED_BLK_OFF|LED_SYNC_OFF|LED_ON);
+
+ netif_carrier_on(skge->netdev);
+ netif_wake_queue(skge->netdev);
+
+ netif_info(skge, link, skge->netdev,
+ "Link is up at %d Mbps, %s duplex, flow control %s\n",
+ skge->speed,
+ skge->duplex == DUPLEX_FULL ? "full" : "half",
+ skge_pause(skge->flow_status));
+}
+
+static void skge_link_down(struct skge_port *skge)
+{
+ skge_write8(skge->hw, SK_REG(skge->port, LNK_LED_REG), LED_OFF);
+ netif_carrier_off(skge->netdev);
+ netif_stop_queue(skge->netdev);
+
+ netif_info(skge, link, skge->netdev, "Link is down\n");
+}
+
+static void xm_link_down(struct skge_hw *hw, int port)
+{
+ struct net_device *dev = hw->dev[port];
+ struct skge_port *skge = netdev_priv(dev);
+
+ xm_write16(hw, port, XM_IMSK, XM_IMSK_DISABLE);
+
+ if (netif_carrier_ok(dev))
+ skge_link_down(skge);
+}
+
+static int __xm_phy_read(struct skge_hw *hw, int port, u16 reg, u16 *val)
+{
+ int i;
+
+ xm_write16(hw, port, XM_PHY_ADDR, reg | hw->phy_addr);
+ *val = xm_read16(hw, port, XM_PHY_DATA);
+
+ if (hw->phy_type == SK_PHY_XMAC)
+ goto ready;
+
+ for (i = 0; i < PHY_RETRIES; i++) {
+ if (xm_read16(hw, port, XM_MMU_CMD) & XM_MMU_PHY_RDY)
+ goto ready;
+ udelay(1);
+ }
+
+ return -ETIMEDOUT;
+ ready:
+ *val = xm_read16(hw, port, XM_PHY_DATA);
+
+ return 0;
+}
+
+static u16 xm_phy_read(struct skge_hw *hw, int port, u16 reg)
+{
+ u16 v = 0;
+ if (__xm_phy_read(hw, port, reg, &v))
+ pr_warn("%s: phy read timed out\n", hw->dev[port]->name);
+ return v;
+}
+
+static int xm_phy_write(struct skge_hw *hw, int port, u16 reg, u16 val)
+{
+ int i;
+
+ xm_write16(hw, port, XM_PHY_ADDR, reg | hw->phy_addr);
+ for (i = 0; i < PHY_RETRIES; i++) {
+ if (!(xm_read16(hw, port, XM_MMU_CMD) & XM_MMU_PHY_BUSY))
+ goto ready;
+ udelay(1);
+ }
+ return -EIO;
+
+ ready:
+ xm_write16(hw, port, XM_PHY_DATA, val);
+ for (i = 0; i < PHY_RETRIES; i++) {
+ if (!(xm_read16(hw, port, XM_MMU_CMD) & XM_MMU_PHY_BUSY))
+ return 0;
+ udelay(1);
+ }
+ return -ETIMEDOUT;
+}
+
+static void genesis_init(struct skge_hw *hw)
+{
+ /* set blink source counter */
+ skge_write32(hw, B2_BSC_INI, (SK_BLK_DUR * SK_FACT_53) / 100);
+ skge_write8(hw, B2_BSC_CTRL, BSC_START);
+
+ /* configure mac arbiter */
+ skge_write16(hw, B3_MA_TO_CTRL, MA_RST_CLR);
+
+ /* configure mac arbiter timeout values */
+ skge_write8(hw, B3_MA_TOINI_RX1, SK_MAC_TO_53);
+ skge_write8(hw, B3_MA_TOINI_RX2, SK_MAC_TO_53);
+ skge_write8(hw, B3_MA_TOINI_TX1, SK_MAC_TO_53);
+ skge_write8(hw, B3_MA_TOINI_TX2, SK_MAC_TO_53);
+
+ skge_write8(hw, B3_MA_RCINI_RX1, 0);
+ skge_write8(hw, B3_MA_RCINI_RX2, 0);
+ skge_write8(hw, B3_MA_RCINI_TX1, 0);
+ skge_write8(hw, B3_MA_RCINI_TX2, 0);
+
+ /* configure packet arbiter timeout */
+ skge_write16(hw, B3_PA_CTRL, PA_RST_CLR);
+ skge_write16(hw, B3_PA_TOINI_RX1, SK_PKT_TO_MAX);
+ skge_write16(hw, B3_PA_TOINI_TX1, SK_PKT_TO_MAX);
+ skge_write16(hw, B3_PA_TOINI_RX2, SK_PKT_TO_MAX);
+ skge_write16(hw, B3_PA_TOINI_TX2, SK_PKT_TO_MAX);
+}
+
+static void genesis_reset(struct skge_hw *hw, int port)
+{
+ static const u8 zero[8] = { 0 };
+ u32 reg;
+
+ skge_write8(hw, SK_REG(port, GMAC_IRQ_MSK), 0);
+
+ /* reset the statistics module */
+ xm_write32(hw, port, XM_GP_PORT, XM_GP_RES_STAT);
+ xm_write16(hw, port, XM_IMSK, XM_IMSK_DISABLE);
+ xm_write32(hw, port, XM_MODE, 0); /* clear Mode Reg */
+ xm_write16(hw, port, XM_TX_CMD, 0); /* reset TX CMD Reg */
+ xm_write16(hw, port, XM_RX_CMD, 0); /* reset RX CMD Reg */
+
+ /* disable Broadcom PHY IRQ */
+ if (hw->phy_type == SK_PHY_BCOM)
+ xm_write16(hw, port, PHY_BCOM_INT_MASK, 0xffff);
+
+ xm_outhash(hw, port, XM_HSM, zero);
+
+ /* Flush TX and RX fifo */
+ reg = xm_read32(hw, port, XM_MODE);
+ xm_write32(hw, port, XM_MODE, reg | XM_MD_FTF);
+ xm_write32(hw, port, XM_MODE, reg | XM_MD_FRF);
+}
+
+/* Convert mode to MII values */
+static const u16 phy_pause_map[] = {
+ [FLOW_MODE_NONE] = 0,
+ [FLOW_MODE_LOC_SEND] = PHY_AN_PAUSE_ASYM,
+ [FLOW_MODE_SYMMETRIC] = PHY_AN_PAUSE_CAP,
+ [FLOW_MODE_SYM_OR_REM] = PHY_AN_PAUSE_CAP | PHY_AN_PAUSE_ASYM,
+};
+
+/* special defines for FIBER (88E1011S only) */
+static const u16 fiber_pause_map[] = {
+ [FLOW_MODE_NONE] = PHY_X_P_NO_PAUSE,
+ [FLOW_MODE_LOC_SEND] = PHY_X_P_ASYM_MD,
+ [FLOW_MODE_SYMMETRIC] = PHY_X_P_SYM_MD,
+ [FLOW_MODE_SYM_OR_REM] = PHY_X_P_BOTH_MD,
+};
+
+
+/* Check status of Broadcom phy link */
+static void bcom_check_link(struct skge_hw *hw, int port)
+{
+ struct net_device *dev = hw->dev[port];
+ struct skge_port *skge = netdev_priv(dev);
+ u16 status;
+
+ /* read twice because of latch */
+ xm_phy_read(hw, port, PHY_BCOM_STAT);
+ status = xm_phy_read(hw, port, PHY_BCOM_STAT);
+
+ if ((status & PHY_ST_LSYNC) == 0) {
+ xm_link_down(hw, port);
+ return;
+ }
+
+ if (skge->autoneg == AUTONEG_ENABLE) {
+ u16 lpa, aux;
+
+ if (!(status & PHY_ST_AN_OVER))
+ return;
+
+ lpa = xm_phy_read(hw, port, PHY_XMAC_AUNE_LP);
+ if (lpa & PHY_B_AN_RF) {
+ netdev_notice(dev, "remote fault\n");
+ return;
+ }
+
+ aux = xm_phy_read(hw, port, PHY_BCOM_AUX_STAT);
+
+ /* Check Duplex mismatch */
+ switch (aux & PHY_B_AS_AN_RES_MSK) {
+ case PHY_B_RES_1000FD:
+ skge->duplex = DUPLEX_FULL;
+ break;
+ case PHY_B_RES_1000HD:
+ skge->duplex = DUPLEX_HALF;
+ break;
+ default:
+ netdev_notice(dev, "duplex mismatch\n");
+ return;
+ }
+
+ /* We are using IEEE 802.3z/D5.0 Table 37-4 */
+ switch (aux & PHY_B_AS_PAUSE_MSK) {
+ case PHY_B_AS_PAUSE_MSK:
+ skge->flow_status = FLOW_STAT_SYMMETRIC;
+ break;
+ case PHY_B_AS_PRR:
+ skge->flow_status = FLOW_STAT_REM_SEND;
+ break;
+ case PHY_B_AS_PRT:
+ skge->flow_status = FLOW_STAT_LOC_SEND;
+ break;
+ default:
+ skge->flow_status = FLOW_STAT_NONE;
+ }
+ skge->speed = SPEED_1000;
+ }
+
+ if (!netif_carrier_ok(dev))
+ genesis_link_up(skge);
+}
+
+/* Broadcom 5400 only supports giagabit! SysKonnect did not put an additional
+ * Phy on for 100 or 10Mbit operation
+ */
+static void bcom_phy_init(struct skge_port *skge)
+{
+ struct skge_hw *hw = skge->hw;
+ int port = skge->port;
+ int i;
+ u16 id1, r, ext, ctl;
+
+ /* magic workaround patterns for Broadcom */
+ static const struct {
+ u16 reg;
+ u16 val;
+ } A1hack[] = {
+ { 0x18, 0x0c20 }, { 0x17, 0x0012 }, { 0x15, 0x1104 },
+ { 0x17, 0x0013 }, { 0x15, 0x0404 }, { 0x17, 0x8006 },
+ { 0x15, 0x0132 }, { 0x17, 0x8006 }, { 0x15, 0x0232 },
+ { 0x17, 0x800D }, { 0x15, 0x000F }, { 0x18, 0x0420 },
+ }, C0hack[] = {
+ { 0x18, 0x0c20 }, { 0x17, 0x0012 }, { 0x15, 0x1204 },
+ { 0x17, 0x0013 }, { 0x15, 0x0A04 }, { 0x18, 0x0420 },
+ };
+
+ /* read Id from external PHY (all have the same address) */
+ id1 = xm_phy_read(hw, port, PHY_XMAC_ID1);
+
+ /* Optimize MDIO transfer by suppressing preamble. */
+ r = xm_read16(hw, port, XM_MMU_CMD);
+ r |= XM_MMU_NO_PRE;
+ xm_write16(hw, port, XM_MMU_CMD, r);
+
+ switch (id1) {
+ case PHY_BCOM_ID1_C0:
+ /*
+ * Workaround BCOM Errata for the C0 type.
+ * Write magic patterns to reserved registers.
+ */
+ for (i = 0; i < ARRAY_SIZE(C0hack); i++)
+ xm_phy_write(hw, port,
+ C0hack[i].reg, C0hack[i].val);
+
+ break;
+ case PHY_BCOM_ID1_A1:
+ /*
+ * Workaround BCOM Errata for the A1 type.
+ * Write magic patterns to reserved registers.
+ */
+ for (i = 0; i < ARRAY_SIZE(A1hack); i++)
+ xm_phy_write(hw, port,
+ A1hack[i].reg, A1hack[i].val);
+ break;
+ }
+
+ /*
+ * Workaround BCOM Errata (#10523) for all BCom PHYs.
+ * Disable Power Management after reset.
+ */
+ r = xm_phy_read(hw, port, PHY_BCOM_AUX_CTRL);
+ r |= PHY_B_AC_DIS_PM;
+ xm_phy_write(hw, port, PHY_BCOM_AUX_CTRL, r);
+
+ /* Dummy read */
+ xm_read16(hw, port, XM_ISRC);
+
+ ext = PHY_B_PEC_EN_LTR; /* enable tx led */
+ ctl = PHY_CT_SP1000; /* always 1000mbit */
+
+ if (skge->autoneg == AUTONEG_ENABLE) {
+ /*
+ * Workaround BCOM Errata #1 for the C5 type.
+ * 1000Base-T Link Acquisition Failure in Slave Mode
+ * Set Repeater/DTE bit 10 of the 1000Base-T Control Register
+ */
+ u16 adv = PHY_B_1000C_RD;
+ if (skge->advertising & ADVERTISED_1000baseT_Half)
+ adv |= PHY_B_1000C_AHD;
+ if (skge->advertising & ADVERTISED_1000baseT_Full)
+ adv |= PHY_B_1000C_AFD;
+ xm_phy_write(hw, port, PHY_BCOM_1000T_CTRL, adv);
+
+ ctl |= PHY_CT_ANE | PHY_CT_RE_CFG;
+ } else {
+ if (skge->duplex == DUPLEX_FULL)
+ ctl |= PHY_CT_DUP_MD;
+ /* Force to slave */
+ xm_phy_write(hw, port, PHY_BCOM_1000T_CTRL, PHY_B_1000C_MSE);
+ }
+
+ /* Set autonegotiation pause parameters */
+ xm_phy_write(hw, port, PHY_BCOM_AUNE_ADV,
+ phy_pause_map[skge->flow_control] | PHY_AN_CSMA);
+
+ /* Handle Jumbo frames */
+ if (hw->dev[port]->mtu > ETH_DATA_LEN) {
+ xm_phy_write(hw, port, PHY_BCOM_AUX_CTRL,
+ PHY_B_AC_TX_TST | PHY_B_AC_LONG_PACK);
+
+ ext |= PHY_B_PEC_HIGH_LA;
+
+ }
+
+ xm_phy_write(hw, port, PHY_BCOM_P_EXT_CTRL, ext);
+ xm_phy_write(hw, port, PHY_BCOM_CTRL, ctl);
+
+ /* Use link status change interrupt */
+ xm_phy_write(hw, port, PHY_BCOM_INT_MASK, PHY_B_DEF_MSK);
+}
+
+static void xm_phy_init(struct skge_port *skge)
+{
+ struct skge_hw *hw = skge->hw;
+ int port = skge->port;
+ u16 ctrl = 0;
+
+ if (skge->autoneg == AUTONEG_ENABLE) {
+ if (skge->advertising & ADVERTISED_1000baseT_Half)
+ ctrl |= PHY_X_AN_HD;
+ if (skge->advertising & ADVERTISED_1000baseT_Full)
+ ctrl |= PHY_X_AN_FD;
+
+ ctrl |= fiber_pause_map[skge->flow_control];
+
+ xm_phy_write(hw, port, PHY_XMAC_AUNE_ADV, ctrl);
+
+ /* Restart Auto-negotiation */
+ ctrl = PHY_CT_ANE | PHY_CT_RE_CFG;
+ } else {
+ /* Set DuplexMode in Config register */
+ if (skge->duplex == DUPLEX_FULL)
+ ctrl |= PHY_CT_DUP_MD;
+ /*
+ * Do NOT enable Auto-negotiation here. This would hold
+ * the link down because no IDLEs are transmitted
+ */
+ }
+
+ xm_phy_write(hw, port, PHY_XMAC_CTRL, ctrl);
+
+ /* Poll PHY for status changes */
+ mod_timer(&skge->link_timer, jiffies + LINK_HZ);
+}
+
+static int xm_check_link(struct net_device *dev)
+{
+ struct skge_port *skge = netdev_priv(dev);
+ struct skge_hw *hw = skge->hw;
+ int port = skge->port;
+ u16 status;
+
+ /* read twice because of latch */
+ xm_phy_read(hw, port, PHY_XMAC_STAT);
+ status = xm_phy_read(hw, port, PHY_XMAC_STAT);
+
+ if ((status & PHY_ST_LSYNC) == 0) {
+ xm_link_down(hw, port);
+ return 0;
+ }
+
+ if (skge->autoneg == AUTONEG_ENABLE) {
+ u16 lpa, res;
+
+ if (!(status & PHY_ST_AN_OVER))
+ return 0;
+
+ lpa = xm_phy_read(hw, port, PHY_XMAC_AUNE_LP);
+ if (lpa & PHY_B_AN_RF) {
+ netdev_notice(dev, "remote fault\n");
+ return 0;
+ }
+
+ res = xm_phy_read(hw, port, PHY_XMAC_RES_ABI);
+
+ /* Check Duplex mismatch */
+ switch (res & (PHY_X_RS_HD | PHY_X_RS_FD)) {
+ case PHY_X_RS_FD:
+ skge->duplex = DUPLEX_FULL;
+ break;
+ case PHY_X_RS_HD:
+ skge->duplex = DUPLEX_HALF;
+ break;
+ default:
+ netdev_notice(dev, "duplex mismatch\n");
+ return 0;
+ }
+
+ /* We are using IEEE 802.3z/D5.0 Table 37-4 */
+ if ((skge->flow_control == FLOW_MODE_SYMMETRIC ||
+ skge->flow_control == FLOW_MODE_SYM_OR_REM) &&
+ (lpa & PHY_X_P_SYM_MD))
+ skge->flow_status = FLOW_STAT_SYMMETRIC;
+ else if (skge->flow_control == FLOW_MODE_SYM_OR_REM &&
+ (lpa & PHY_X_RS_PAUSE) == PHY_X_P_ASYM_MD)
+ /* Enable PAUSE receive, disable PAUSE transmit */
+ skge->flow_status = FLOW_STAT_REM_SEND;
+ else if (skge->flow_control == FLOW_MODE_LOC_SEND &&
+ (lpa & PHY_X_RS_PAUSE) == PHY_X_P_BOTH_MD)
+ /* Disable PAUSE receive, enable PAUSE transmit */
+ skge->flow_status = FLOW_STAT_LOC_SEND;
+ else
+ skge->flow_status = FLOW_STAT_NONE;
+
+ skge->speed = SPEED_1000;
+ }
+
+ if (!netif_carrier_ok(dev))
+ genesis_link_up(skge);
+ return 1;
+}
+
+/* Poll to check for link coming up.
+ *
+ * Since internal PHY is wired to a level triggered pin, can't
+ * get an interrupt when carrier is detected, need to poll for
+ * link coming up.
+ */
+static void xm_link_timer(unsigned long arg)
+{
+ struct skge_port *skge = (struct skge_port *) arg;
+ struct net_device *dev = skge->netdev;
+ struct skge_hw *hw = skge->hw;
+ int port = skge->port;
+ int i;
+ unsigned long flags;
+
+ if (!netif_running(dev))
+ return;
+
+ spin_lock_irqsave(&hw->phy_lock, flags);
+
+ /*
+ * Verify that the link by checking GPIO register three times.
+ * This pin has the signal from the link_sync pin connected to it.
+ */
+ for (i = 0; i < 3; i++) {
+ if (xm_read16(hw, port, XM_GP_PORT) & XM_GP_INP_ASS)
+ goto link_down;
+ }
+
+ /* Re-enable interrupt to detect link down */
+ if (xm_check_link(dev)) {
+ u16 msk = xm_read16(hw, port, XM_IMSK);
+ msk &= ~XM_IS_INP_ASS;
+ xm_write16(hw, port, XM_IMSK, msk);
+ xm_read16(hw, port, XM_ISRC);
+ } else {
+link_down:
+ mod_timer(&skge->link_timer,
+ round_jiffies(jiffies + LINK_HZ));
+ }
+ spin_unlock_irqrestore(&hw->phy_lock, flags);
+}
+
+static void genesis_mac_init(struct skge_hw *hw, int port)
+{
+ struct net_device *dev = hw->dev[port];
+ struct skge_port *skge = netdev_priv(dev);
+ int jumbo = hw->dev[port]->mtu > ETH_DATA_LEN;
+ int i;
+ u32 r;
+ static const u8 zero[6] = { 0 };
+
+ for (i = 0; i < 10; i++) {
+ skge_write16(hw, SK_REG(port, TX_MFF_CTRL1),
+ MFF_SET_MAC_RST);
+ if (skge_read16(hw, SK_REG(port, TX_MFF_CTRL1)) & MFF_SET_MAC_RST)
+ goto reset_ok;
+ udelay(1);
+ }
+
+ netdev_warn(dev, "genesis reset failed\n");
+
+ reset_ok:
+ /* Unreset the XMAC. */
+ skge_write16(hw, SK_REG(port, TX_MFF_CTRL1), MFF_CLR_MAC_RST);
+
+ /*
+ * Perform additional initialization for external PHYs,
+ * namely for the 1000baseTX cards that use the XMAC's
+ * GMII mode.
+ */
+ if (hw->phy_type != SK_PHY_XMAC) {
+ /* Take external Phy out of reset */
+ r = skge_read32(hw, B2_GP_IO);
+ if (port == 0)
+ r |= GP_DIR_0|GP_IO_0;
+ else
+ r |= GP_DIR_2|GP_IO_2;
+
+ skge_write32(hw, B2_GP_IO, r);
+
+ /* Enable GMII interface */
+ xm_write16(hw, port, XM_HW_CFG, XM_HW_GMII_MD);
+ }
+
+
+ switch (hw->phy_type) {
+ case SK_PHY_XMAC:
+ xm_phy_init(skge);
+ break;
+ case SK_PHY_BCOM:
+ bcom_phy_init(skge);
+ bcom_check_link(hw, port);
+ }
+
+ /* Set Station Address */
+ xm_outaddr(hw, port, XM_SA, dev->dev_addr);
+
+ /* We don't use match addresses so clear */
+ for (i = 1; i < 16; i++)
+ xm_outaddr(hw, port, XM_EXM(i), zero);
+
+ /* Clear MIB counters */
+ xm_write16(hw, port, XM_STAT_CMD,
+ XM_SC_CLR_RXC | XM_SC_CLR_TXC);
+ /* Clear two times according to Errata #3 */
+ xm_write16(hw, port, XM_STAT_CMD,
+ XM_SC_CLR_RXC | XM_SC_CLR_TXC);
+
+ /* configure Rx High Water Mark (XM_RX_HI_WM) */
+ xm_write16(hw, port, XM_RX_HI_WM, 1450);
+
+ /* We don't need the FCS appended to the packet. */
+ r = XM_RX_LENERR_OK | XM_RX_STRIP_FCS;
+ if (jumbo)
+ r |= XM_RX_BIG_PK_OK;
+
+ if (skge->duplex == DUPLEX_HALF) {
+ /*
+ * If in manual half duplex mode the other side might be in
+ * full duplex mode, so ignore if a carrier extension is not seen
+ * on frames received
+ */
+ r |= XM_RX_DIS_CEXT;
+ }
+ xm_write16(hw, port, XM_RX_CMD, r);
+
+ /* We want short frames padded to 60 bytes. */
+ xm_write16(hw, port, XM_TX_CMD, XM_TX_AUTO_PAD);
+
+ /* Increase threshold for jumbo frames on dual port */
+ if (hw->ports > 1 && jumbo)
+ xm_write16(hw, port, XM_TX_THR, 1020);
+ else
+ xm_write16(hw, port, XM_TX_THR, 512);
+
+ /*
+ * Enable the reception of all error frames. This is is
+ * a necessary evil due to the design of the XMAC. The
+ * XMAC's receive FIFO is only 8K in size, however jumbo
+ * frames can be up to 9000 bytes in length. When bad
+ * frame filtering is enabled, the XMAC's RX FIFO operates
+ * in 'store and forward' mode. For this to work, the
+ * entire frame has to fit into the FIFO, but that means
+ * that jumbo frames larger than 8192 bytes will be
+ * truncated. Disabling all bad frame filtering causes
+ * the RX FIFO to operate in streaming mode, in which
+ * case the XMAC will start transferring frames out of the
+ * RX FIFO as soon as the FIFO threshold is reached.
+ */
+ xm_write32(hw, port, XM_MODE, XM_DEF_MODE);
+
+
+ /*
+ * Initialize the Receive Counter Event Mask (XM_RX_EV_MSK)
+ * - Enable all bits excepting 'Octets Rx OK Low CntOv'
+ * and 'Octets Rx OK Hi Cnt Ov'.
+ */
+ xm_write32(hw, port, XM_RX_EV_MSK, XMR_DEF_MSK);
+
+ /*
+ * Initialize the Transmit Counter Event Mask (XM_TX_EV_MSK)
+ * - Enable all bits excepting 'Octets Tx OK Low CntOv'
+ * and 'Octets Tx OK Hi Cnt Ov'.
+ */
+ xm_write32(hw, port, XM_TX_EV_MSK, XMT_DEF_MSK);
+
+ /* Configure MAC arbiter */
+ skge_write16(hw, B3_MA_TO_CTRL, MA_RST_CLR);
+
+ /* configure timeout values */
+ skge_write8(hw, B3_MA_TOINI_RX1, 72);
+ skge_write8(hw, B3_MA_TOINI_RX2, 72);
+ skge_write8(hw, B3_MA_TOINI_TX1, 72);
+ skge_write8(hw, B3_MA_TOINI_TX2, 72);
+
+ skge_write8(hw, B3_MA_RCINI_RX1, 0);
+ skge_write8(hw, B3_MA_RCINI_RX2, 0);
+ skge_write8(hw, B3_MA_RCINI_TX1, 0);
+ skge_write8(hw, B3_MA_RCINI_TX2, 0);
+
+ /* Configure Rx MAC FIFO */
+ skge_write8(hw, SK_REG(port, RX_MFF_CTRL2), MFF_RST_CLR);
+ skge_write16(hw, SK_REG(port, RX_MFF_CTRL1), MFF_ENA_TIM_PAT);
+ skge_write8(hw, SK_REG(port, RX_MFF_CTRL2), MFF_ENA_OP_MD);
+
+ /* Configure Tx MAC FIFO */
+ skge_write8(hw, SK_REG(port, TX_MFF_CTRL2), MFF_RST_CLR);
+ skge_write16(hw, SK_REG(port, TX_MFF_CTRL1), MFF_TX_CTRL_DEF);
+ skge_write8(hw, SK_REG(port, TX_MFF_CTRL2), MFF_ENA_OP_MD);
+
+ if (jumbo) {
+ /* Enable frame flushing if jumbo frames used */
+ skge_write16(hw, SK_REG(port, RX_MFF_CTRL1), MFF_ENA_FLUSH);
+ } else {
+ /* enable timeout timers if normal frames */
+ skge_write16(hw, B3_PA_CTRL,
+ (port == 0) ? PA_ENA_TO_TX1 : PA_ENA_TO_TX2);
+ }
+}
+
+static void genesis_stop(struct skge_port *skge)
+{
+ struct skge_hw *hw = skge->hw;
+ int port = skge->port;
+ unsigned retries = 1000;
+ u16 cmd;
+
+ /* Disable Tx and Rx */
+ cmd = xm_read16(hw, port, XM_MMU_CMD);
+ cmd &= ~(XM_MMU_ENA_RX | XM_MMU_ENA_TX);
+ xm_write16(hw, port, XM_MMU_CMD, cmd);
+
+ genesis_reset(hw, port);
+
+ /* Clear Tx packet arbiter timeout IRQ */
+ skge_write16(hw, B3_PA_CTRL,
+ port == 0 ? PA_CLR_TO_TX1 : PA_CLR_TO_TX2);
+
+ /* Reset the MAC */
+ skge_write16(hw, SK_REG(port, TX_MFF_CTRL1), MFF_CLR_MAC_RST);
+ do {
+ skge_write16(hw, SK_REG(port, TX_MFF_CTRL1), MFF_SET_MAC_RST);
+ if (!(skge_read16(hw, SK_REG(port, TX_MFF_CTRL1)) & MFF_SET_MAC_RST))
+ break;
+ } while (--retries > 0);
+
+ /* For external PHYs there must be special handling */
+ if (hw->phy_type != SK_PHY_XMAC) {
+ u32 reg = skge_read32(hw, B2_GP_IO);
+ if (port == 0) {
+ reg |= GP_DIR_0;
+ reg &= ~GP_IO_0;
+ } else {
+ reg |= GP_DIR_2;
+ reg &= ~GP_IO_2;
+ }
+ skge_write32(hw, B2_GP_IO, reg);
+ skge_read32(hw, B2_GP_IO);
+ }
+
+ xm_write16(hw, port, XM_MMU_CMD,
+ xm_read16(hw, port, XM_MMU_CMD)
+ & ~(XM_MMU_ENA_RX | XM_MMU_ENA_TX));
+
+ xm_read16(hw, port, XM_MMU_CMD);
+}
+
+
+static void genesis_get_stats(struct skge_port *skge, u64 *data)
+{
+ struct skge_hw *hw = skge->hw;
+ int port = skge->port;
+ int i;
+ unsigned long timeout = jiffies + HZ;
+
+ xm_write16(hw, port,
+ XM_STAT_CMD, XM_SC_SNP_TXC | XM_SC_SNP_RXC);
+
+ /* wait for update to complete */
+ while (xm_read16(hw, port, XM_STAT_CMD)
+ & (XM_SC_SNP_TXC | XM_SC_SNP_RXC)) {
+ if (time_after(jiffies, timeout))
+ break;
+ udelay(10);
+ }
+
+ /* special case for 64 bit octet counter */
+ data[0] = (u64) xm_read32(hw, port, XM_TXO_OK_HI) << 32
+ | xm_read32(hw, port, XM_TXO_OK_LO);
+ data[1] = (u64) xm_read32(hw, port, XM_RXO_OK_HI) << 32
+ | xm_read32(hw, port, XM_RXO_OK_LO);
+
+ for (i = 2; i < ARRAY_SIZE(skge_stats); i++)
+ data[i] = xm_read32(hw, port, skge_stats[i].xmac_offset);
+}
+
+static void genesis_mac_intr(struct skge_hw *hw, int port)
+{
+ struct net_device *dev = hw->dev[port];
+ struct skge_port *skge = netdev_priv(dev);
+ u16 status = xm_read16(hw, port, XM_ISRC);
+
+ netif_printk(skge, intr, KERN_DEBUG, skge->netdev,
+ "mac interrupt status 0x%x\n", status);
+
+ if (hw->phy_type == SK_PHY_XMAC && (status & XM_IS_INP_ASS)) {
+ xm_link_down(hw, port);
+ mod_timer(&skge->link_timer, jiffies + 1);
+ }
+
+ if (status & XM_IS_TXF_UR) {
+ xm_write32(hw, port, XM_MODE, XM_MD_FTF);
+ ++dev->stats.tx_fifo_errors;
+ }
+}
+
+static void genesis_link_up(struct skge_port *skge)
+{
+ struct skge_hw *hw = skge->hw;
+ int port = skge->port;
+ u16 cmd, msk;
+ u32 mode;
+
+ cmd = xm_read16(hw, port, XM_MMU_CMD);
+
+ /*
+ * enabling pause frame reception is required for 1000BT
+ * because the XMAC is not reset if the link is going down
+ */
+ if (skge->flow_status == FLOW_STAT_NONE ||
+ skge->flow_status == FLOW_STAT_LOC_SEND)
+ /* Disable Pause Frame Reception */
+ cmd |= XM_MMU_IGN_PF;
+ else
+ /* Enable Pause Frame Reception */
+ cmd &= ~XM_MMU_IGN_PF;
+
+ xm_write16(hw, port, XM_MMU_CMD, cmd);
+
+ mode = xm_read32(hw, port, XM_MODE);
+ if (skge->flow_status == FLOW_STAT_SYMMETRIC ||
+ skge->flow_status == FLOW_STAT_LOC_SEND) {
+ /*
+ * Configure Pause Frame Generation
+ * Use internal and external Pause Frame Generation.
+ * Sending pause frames is edge triggered.
+ * Send a Pause frame with the maximum pause time if
+ * internal oder external FIFO full condition occurs.
+ * Send a zero pause time frame to re-start transmission.
+ */
+ /* XM_PAUSE_DA = '010000C28001' (default) */
+ /* XM_MAC_PTIME = 0xffff (maximum) */
+ /* remember this value is defined in big endian (!) */
+ xm_write16(hw, port, XM_MAC_PTIME, 0xffff);
+
+ mode |= XM_PAUSE_MODE;
+ skge_write16(hw, SK_REG(port, RX_MFF_CTRL1), MFF_ENA_PAUSE);
+ } else {
+ /*
+ * disable pause frame generation is required for 1000BT
+ * because the XMAC is not reset if the link is going down
+ */
+ /* Disable Pause Mode in Mode Register */
+ mode &= ~XM_PAUSE_MODE;
+
+ skge_write16(hw, SK_REG(port, RX_MFF_CTRL1), MFF_DIS_PAUSE);
+ }
+
+ xm_write32(hw, port, XM_MODE, mode);
+
+ /* Turn on detection of Tx underrun */
+ msk = xm_read16(hw, port, XM_IMSK);
+ msk &= ~XM_IS_TXF_UR;
+ xm_write16(hw, port, XM_IMSK, msk);
+
+ xm_read16(hw, port, XM_ISRC);
+
+ /* get MMU Command Reg. */
+ cmd = xm_read16(hw, port, XM_MMU_CMD);
+ if (hw->phy_type != SK_PHY_XMAC && skge->duplex == DUPLEX_FULL)
+ cmd |= XM_MMU_GMII_FD;
+
+ /*
+ * Workaround BCOM Errata (#10523) for all BCom Phys
+ * Enable Power Management after link up
+ */
+ if (hw->phy_type == SK_PHY_BCOM) {
+ xm_phy_write(hw, port, PHY_BCOM_AUX_CTRL,
+ xm_phy_read(hw, port, PHY_BCOM_AUX_CTRL)
+ & ~PHY_B_AC_DIS_PM);
+ xm_phy_write(hw, port, PHY_BCOM_INT_MASK, PHY_B_DEF_MSK);
+ }
+
+ /* enable Rx/Tx */
+ xm_write16(hw, port, XM_MMU_CMD,
+ cmd | XM_MMU_ENA_RX | XM_MMU_ENA_TX);
+ skge_link_up(skge);
+}
+
+
+static inline void bcom_phy_intr(struct skge_port *skge)
+{
+ struct skge_hw *hw = skge->hw;
+ int port = skge->port;
+ u16 isrc;
+
+ isrc = xm_phy_read(hw, port, PHY_BCOM_INT_STAT);
+ netif_printk(skge, intr, KERN_DEBUG, skge->netdev,
+ "phy interrupt status 0x%x\n", isrc);
+
+ if (isrc & PHY_B_IS_PSE)
+ pr_err("%s: uncorrectable pair swap error\n",
+ hw->dev[port]->name);
+
+ /* Workaround BCom Errata:
+ * enable and disable loopback mode if "NO HCD" occurs.
+ */
+ if (isrc & PHY_B_IS_NO_HDCL) {
+ u16 ctrl = xm_phy_read(hw, port, PHY_BCOM_CTRL);
+ xm_phy_write(hw, port, PHY_BCOM_CTRL,
+ ctrl | PHY_CT_LOOP);
+ xm_phy_write(hw, port, PHY_BCOM_CTRL,
+ ctrl & ~PHY_CT_LOOP);
+ }
+
+ if (isrc & (PHY_B_IS_AN_PR | PHY_B_IS_LST_CHANGE))
+ bcom_check_link(hw, port);
+
+}
+
+static int gm_phy_write(struct skge_hw *hw, int port, u16 reg, u16 val)
+{
+ int i;
+
+ gma_write16(hw, port, GM_SMI_DATA, val);
+ gma_write16(hw, port, GM_SMI_CTRL,
+ GM_SMI_CT_PHY_AD(hw->phy_addr) | GM_SMI_CT_REG_AD(reg));
+ for (i = 0; i < PHY_RETRIES; i++) {
+ udelay(1);
+
+ if (!(gma_read16(hw, port, GM_SMI_CTRL) & GM_SMI_CT_BUSY))
+ return 0;
+ }
+
+ pr_warn("%s: phy write timeout\n", hw->dev[port]->name);
+ return -EIO;
+}
+
+static int __gm_phy_read(struct skge_hw *hw, int port, u16 reg, u16 *val)
+{
+ int i;
+
+ gma_write16(hw, port, GM_SMI_CTRL,
+ GM_SMI_CT_PHY_AD(hw->phy_addr)
+ | GM_SMI_CT_REG_AD(reg) | GM_SMI_CT_OP_RD);
+
+ for (i = 0; i < PHY_RETRIES; i++) {
+ udelay(1);
+ if (gma_read16(hw, port, GM_SMI_CTRL) & GM_SMI_CT_RD_VAL)
+ goto ready;
+ }
+
+ return -ETIMEDOUT;
+ ready:
+ *val = gma_read16(hw, port, GM_SMI_DATA);
+ return 0;
+}
+
+static u16 gm_phy_read(struct skge_hw *hw, int port, u16 reg)
+{
+ u16 v = 0;
+ if (__gm_phy_read(hw, port, reg, &v))
+ pr_warn("%s: phy read timeout\n", hw->dev[port]->name);
+ return v;
+}
+
+/* Marvell Phy Initialization */
+static void yukon_init(struct skge_hw *hw, int port)
+{
+ struct skge_port *skge = netdev_priv(hw->dev[port]);
+ u16 ctrl, ct1000, adv;
+
+ if (skge->autoneg == AUTONEG_ENABLE) {
+ u16 ectrl = gm_phy_read(hw, port, PHY_MARV_EXT_CTRL);
+
+ ectrl &= ~(PHY_M_EC_M_DSC_MSK | PHY_M_EC_S_DSC_MSK |
+ PHY_M_EC_MAC_S_MSK);
+ ectrl |= PHY_M_EC_MAC_S(MAC_TX_CLK_25_MHZ);
+
+ ectrl |= PHY_M_EC_M_DSC(0) | PHY_M_EC_S_DSC(1);
+
+ gm_phy_write(hw, port, PHY_MARV_EXT_CTRL, ectrl);
+ }
+
+ ctrl = gm_phy_read(hw, port, PHY_MARV_CTRL);
+ if (skge->autoneg == AUTONEG_DISABLE)
+ ctrl &= ~PHY_CT_ANE;
+
+ ctrl |= PHY_CT_RESET;
+ gm_phy_write(hw, port, PHY_MARV_CTRL, ctrl);
+
+ ctrl = 0;
+ ct1000 = 0;
+ adv = PHY_AN_CSMA;
+
+ if (skge->autoneg == AUTONEG_ENABLE) {
+ if (hw->copper) {
+ if (skge->advertising & ADVERTISED_1000baseT_Full)
+ ct1000 |= PHY_M_1000C_AFD;
+ if (skge->advertising & ADVERTISED_1000baseT_Half)
+ ct1000 |= PHY_M_1000C_AHD;
+ if (skge->advertising & ADVERTISED_100baseT_Full)
+ adv |= PHY_M_AN_100_FD;
+ if (skge->advertising & ADVERTISED_100baseT_Half)
+ adv |= PHY_M_AN_100_HD;
+ if (skge->advertising & ADVERTISED_10baseT_Full)
+ adv |= PHY_M_AN_10_FD;
+ if (skge->advertising & ADVERTISED_10baseT_Half)
+ adv |= PHY_M_AN_10_HD;
+
+ /* Set Flow-control capabilities */
+ adv |= phy_pause_map[skge->flow_control];
+ } else {
+ if (skge->advertising & ADVERTISED_1000baseT_Full)
+ adv |= PHY_M_AN_1000X_AFD;
+ if (skge->advertising & ADVERTISED_1000baseT_Half)
+ adv |= PHY_M_AN_1000X_AHD;
+
+ adv |= fiber_pause_map[skge->flow_control];
+ }
+
+ /* Restart Auto-negotiation */
+ ctrl |= PHY_CT_ANE | PHY_CT_RE_CFG;
+ } else {
+ /* forced speed/duplex settings */
+ ct1000 = PHY_M_1000C_MSE;
+
+ if (skge->duplex == DUPLEX_FULL)
+ ctrl |= PHY_CT_DUP_MD;
+
+ switch (skge->speed) {
+ case SPEED_1000:
+ ctrl |= PHY_CT_SP1000;
+ break;
+ case SPEED_100:
+ ctrl |= PHY_CT_SP100;
+ break;
+ }
+
+ ctrl |= PHY_CT_RESET;
+ }
+
+ gm_phy_write(hw, port, PHY_MARV_1000T_CTRL, ct1000);
+
+ gm_phy_write(hw, port, PHY_MARV_AUNE_ADV, adv);
+ gm_phy_write(hw, port, PHY_MARV_CTRL, ctrl);
+
+ /* Enable phy interrupt on autonegotiation complete (or link up) */
+ if (skge->autoneg == AUTONEG_ENABLE)
+ gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_IS_AN_MSK);
+ else
+ gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_IS_DEF_MSK);
+}
+
+static void yukon_reset(struct skge_hw *hw, int port)
+{
+ gm_phy_write(hw, port, PHY_MARV_INT_MASK, 0);/* disable PHY IRQs */
+ gma_write16(hw, port, GM_MC_ADDR_H1, 0); /* clear MC hash */
+ gma_write16(hw, port, GM_MC_ADDR_H2, 0);
+ gma_write16(hw, port, GM_MC_ADDR_H3, 0);
+ gma_write16(hw, port, GM_MC_ADDR_H4, 0);
+
+ gma_write16(hw, port, GM_RX_CTRL,
+ gma_read16(hw, port, GM_RX_CTRL)
+ | GM_RXCR_UCF_ENA | GM_RXCR_MCF_ENA);
+}
+
+/* Apparently, early versions of Yukon-Lite had wrong chip_id? */
+static int is_yukon_lite_a0(struct skge_hw *hw)
+{
+ u32 reg;
+ int ret;
+
+ if (hw->chip_id != CHIP_ID_YUKON)
+ return 0;
+
+ reg = skge_read32(hw, B2_FAR);
+ skge_write8(hw, B2_FAR + 3, 0xff);
+ ret = (skge_read8(hw, B2_FAR + 3) != 0);
+ skge_write32(hw, B2_FAR, reg);
+ return ret;
+}
+
+static void yukon_mac_init(struct skge_hw *hw, int port)
+{
+ struct skge_port *skge = netdev_priv(hw->dev[port]);
+ int i;
+ u32 reg;
+ const u8 *addr = hw->dev[port]->dev_addr;
+
+ /* WA code for COMA mode -- set PHY reset */
+ if (hw->chip_id == CHIP_ID_YUKON_LITE &&
+ hw->chip_rev >= CHIP_REV_YU_LITE_A3) {
+ reg = skge_read32(hw, B2_GP_IO);
+ reg |= GP_DIR_9 | GP_IO_9;
+ skge_write32(hw, B2_GP_IO, reg);
+ }
+
+ /* hard reset */
+ skge_write32(hw, SK_REG(port, GPHY_CTRL), GPC_RST_SET);
+ skge_write32(hw, SK_REG(port, GMAC_CTRL), GMC_RST_SET);
+
+ /* WA code for COMA mode -- clear PHY reset */
+ if (hw->chip_id == CHIP_ID_YUKON_LITE &&
+ hw->chip_rev >= CHIP_REV_YU_LITE_A3) {
+ reg = skge_read32(hw, B2_GP_IO);
+ reg |= GP_DIR_9;
+ reg &= ~GP_IO_9;
+ skge_write32(hw, B2_GP_IO, reg);
+ }
+
+ /* Set hardware config mode */
+ reg = GPC_INT_POL_HI | GPC_DIS_FC | GPC_DIS_SLEEP |
+ GPC_ENA_XC | GPC_ANEG_ADV_ALL_M | GPC_ENA_PAUSE;
+ reg |= hw->copper ? GPC_HWCFG_GMII_COP : GPC_HWCFG_GMII_FIB;
+
+ /* Clear GMC reset */
+ skge_write32(hw, SK_REG(port, GPHY_CTRL), reg | GPC_RST_SET);
+ skge_write32(hw, SK_REG(port, GPHY_CTRL), reg | GPC_RST_CLR);
+ skge_write32(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_ON | GMC_RST_CLR);
+
+ if (skge->autoneg == AUTONEG_DISABLE) {
+ reg = GM_GPCR_AU_ALL_DIS;
+ gma_write16(hw, port, GM_GP_CTRL,
+ gma_read16(hw, port, GM_GP_CTRL) | reg);
+
+ switch (skge->speed) {
+ case SPEED_1000:
+ reg &= ~GM_GPCR_SPEED_100;
+ reg |= GM_GPCR_SPEED_1000;
+ break;
+ case SPEED_100:
+ reg &= ~GM_GPCR_SPEED_1000;
+ reg |= GM_GPCR_SPEED_100;
+ break;
+ case SPEED_10:
+ reg &= ~(GM_GPCR_SPEED_1000 | GM_GPCR_SPEED_100);
+ break;
+ }
+
+ if (skge->duplex == DUPLEX_FULL)
+ reg |= GM_GPCR_DUP_FULL;
+ } else
+ reg = GM_GPCR_SPEED_1000 | GM_GPCR_SPEED_100 | GM_GPCR_DUP_FULL;
+
+ switch (skge->flow_control) {
+ case FLOW_MODE_NONE:
+ skge_write32(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_OFF);
+ reg |= GM_GPCR_FC_TX_DIS | GM_GPCR_FC_RX_DIS | GM_GPCR_AU_FCT_DIS;
+ break;
+ case FLOW_MODE_LOC_SEND:
+ /* disable Rx flow-control */
+ reg |= GM_GPCR_FC_RX_DIS | GM_GPCR_AU_FCT_DIS;
+ break;
+ case FLOW_MODE_SYMMETRIC:
+ case FLOW_MODE_SYM_OR_REM:
+ /* enable Tx & Rx flow-control */
+ break;
+ }
+
+ gma_write16(hw, port, GM_GP_CTRL, reg);
+ skge_read16(hw, SK_REG(port, GMAC_IRQ_SRC));
+
+ yukon_init(hw, port);
+
+ /* MIB clear */
+ reg = gma_read16(hw, port, GM_PHY_ADDR);
+ gma_write16(hw, port, GM_PHY_ADDR, reg | GM_PAR_MIB_CLR);
+
+ for (i = 0; i < GM_MIB_CNT_SIZE; i++)
+ gma_read16(hw, port, GM_MIB_CNT_BASE + 8*i);
+ gma_write16(hw, port, GM_PHY_ADDR, reg);
+
+ /* transmit control */
+ gma_write16(hw, port, GM_TX_CTRL, TX_COL_THR(TX_COL_DEF));
+
+ /* receive control reg: unicast + multicast + no FCS */
+ gma_write16(hw, port, GM_RX_CTRL,
+ GM_RXCR_UCF_ENA | GM_RXCR_CRC_DIS | GM_RXCR_MCF_ENA);
+
+ /* transmit flow control */
+ gma_write16(hw, port, GM_TX_FLOW_CTRL, 0xffff);
+
+ /* transmit parameter */
+ gma_write16(hw, port, GM_TX_PARAM,
+ TX_JAM_LEN_VAL(TX_JAM_LEN_DEF) |
+ TX_JAM_IPG_VAL(TX_JAM_IPG_DEF) |
+ TX_IPG_JAM_DATA(TX_IPG_JAM_DEF));
+
+ /* configure the Serial Mode Register */
+ reg = DATA_BLIND_VAL(DATA_BLIND_DEF)
+ | GM_SMOD_VLAN_ENA
+ | IPG_DATA_VAL(IPG_DATA_DEF);
+
+ if (hw->dev[port]->mtu > ETH_DATA_LEN)
+ reg |= GM_SMOD_JUMBO_ENA;
+
+ gma_write16(hw, port, GM_SERIAL_MODE, reg);
+
+ /* physical address: used for pause frames */
+ gma_set_addr(hw, port, GM_SRC_ADDR_1L, addr);
+ /* virtual address for data */
+ gma_set_addr(hw, port, GM_SRC_ADDR_2L, addr);
+
+ /* enable interrupt mask for counter overflows */
+ gma_write16(hw, port, GM_TX_IRQ_MSK, 0);
+ gma_write16(hw, port, GM_RX_IRQ_MSK, 0);
+ gma_write16(hw, port, GM_TR_IRQ_MSK, 0);
+
+ /* Initialize Mac Fifo */
+
+ /* Configure Rx MAC FIFO */
+ skge_write16(hw, SK_REG(port, RX_GMF_FL_MSK), RX_FF_FL_DEF_MSK);
+ reg = GMF_OPER_ON | GMF_RX_F_FL_ON;
+
+ /* disable Rx GMAC FIFO Flush for YUKON-Lite Rev. A0 only */
+ if (is_yukon_lite_a0(hw))
+ reg &= ~GMF_RX_F_FL_ON;
+
+ skge_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_CLR);
+ skge_write16(hw, SK_REG(port, RX_GMF_CTRL_T), reg);
+ /*
+ * because Pause Packet Truncation in GMAC is not working
+ * we have to increase the Flush Threshold to 64 bytes
+ * in order to flush pause packets in Rx FIFO on Yukon-1
+ */
+ skge_write16(hw, SK_REG(port, RX_GMF_FL_THR), RX_GMF_FL_THR_DEF+1);
+
+ /* Configure Tx MAC FIFO */
+ skge_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_RST_CLR);
+ skge_write16(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_OPER_ON);
+}
+
+/* Go into power down mode */
+static void yukon_suspend(struct skge_hw *hw, int port)
+{
+ u16 ctrl;
+
+ ctrl = gm_phy_read(hw, port, PHY_MARV_PHY_CTRL);
+ ctrl |= PHY_M_PC_POL_R_DIS;
+ gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, ctrl);
+
+ ctrl = gm_phy_read(hw, port, PHY_MARV_CTRL);
+ ctrl |= PHY_CT_RESET;
+ gm_phy_write(hw, port, PHY_MARV_CTRL, ctrl);
+
+ /* switch IEEE compatible power down mode on */
+ ctrl = gm_phy_read(hw, port, PHY_MARV_CTRL);
+ ctrl |= PHY_CT_PDOWN;
+ gm_phy_write(hw, port, PHY_MARV_CTRL, ctrl);
+}
+
+static void yukon_stop(struct skge_port *skge)
+{
+ struct skge_hw *hw = skge->hw;
+ int port = skge->port;
+
+ skge_write8(hw, SK_REG(port, GMAC_IRQ_MSK), 0);
+ yukon_reset(hw, port);
+
+ gma_write16(hw, port, GM_GP_CTRL,
+ gma_read16(hw, port, GM_GP_CTRL)
+ & ~(GM_GPCR_TX_ENA|GM_GPCR_RX_ENA));
+ gma_read16(hw, port, GM_GP_CTRL);
+
+ yukon_suspend(hw, port);
+
+ /* set GPHY Control reset */
+ skge_write8(hw, SK_REG(port, GPHY_CTRL), GPC_RST_SET);
+ skge_write8(hw, SK_REG(port, GMAC_CTRL), GMC_RST_SET);
+}
+
+static void yukon_get_stats(struct skge_port *skge, u64 *data)
+{
+ struct skge_hw *hw = skge->hw;
+ int port = skge->port;
+ int i;
+
+ data[0] = (u64) gma_read32(hw, port, GM_TXO_OK_HI) << 32
+ | gma_read32(hw, port, GM_TXO_OK_LO);
+ data[1] = (u64) gma_read32(hw, port, GM_RXO_OK_HI) << 32
+ | gma_read32(hw, port, GM_RXO_OK_LO);
+
+ for (i = 2; i < ARRAY_SIZE(skge_stats); i++)
+ data[i] = gma_read32(hw, port,
+ skge_stats[i].gma_offset);
+}
+
+static void yukon_mac_intr(struct skge_hw *hw, int port)
+{
+ struct net_device *dev = hw->dev[port];
+ struct skge_port *skge = netdev_priv(dev);
+ u8 status = skge_read8(hw, SK_REG(port, GMAC_IRQ_SRC));
+
+ netif_printk(skge, intr, KERN_DEBUG, skge->netdev,
+ "mac interrupt status 0x%x\n", status);
+
+ if (status & GM_IS_RX_FF_OR) {
+ ++dev->stats.rx_fifo_errors;
+ skge_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_CLI_RX_FO);
+ }
+
+ if (status & GM_IS_TX_FF_UR) {
+ ++dev->stats.tx_fifo_errors;
+ skge_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_CLI_TX_FU);
+ }
+
+}
+
+static u16 yukon_speed(const struct skge_hw *hw, u16 aux)
+{
+ switch (aux & PHY_M_PS_SPEED_MSK) {
+ case PHY_M_PS_SPEED_1000:
+ return SPEED_1000;
+ case PHY_M_PS_SPEED_100:
+ return SPEED_100;
+ default:
+ return SPEED_10;
+ }
+}
+
+static void yukon_link_up(struct skge_port *skge)
+{
+ struct skge_hw *hw = skge->hw;
+ int port = skge->port;
+ u16 reg;
+
+ /* Enable Transmit FIFO Underrun */
+ skge_write8(hw, SK_REG(port, GMAC_IRQ_MSK), GMAC_DEF_MSK);
+
+ reg = gma_read16(hw, port, GM_GP_CTRL);
+ if (skge->duplex == DUPLEX_FULL || skge->autoneg == AUTONEG_ENABLE)
+ reg |= GM_GPCR_DUP_FULL;
+
+ /* enable Rx/Tx */
+ reg |= GM_GPCR_RX_ENA | GM_GPCR_TX_ENA;
+ gma_write16(hw, port, GM_GP_CTRL, reg);
+
+ gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_IS_DEF_MSK);
+ skge_link_up(skge);
+}
+
+static void yukon_link_down(struct skge_port *skge)
+{
+ struct skge_hw *hw = skge->hw;
+ int port = skge->port;
+ u16 ctrl;
+
+ ctrl = gma_read16(hw, port, GM_GP_CTRL);
+ ctrl &= ~(GM_GPCR_RX_ENA | GM_GPCR_TX_ENA);
+ gma_write16(hw, port, GM_GP_CTRL, ctrl);
+
+ if (skge->flow_status == FLOW_STAT_REM_SEND) {
+ ctrl = gm_phy_read(hw, port, PHY_MARV_AUNE_ADV);
+ ctrl |= PHY_M_AN_ASP;
+ /* restore Asymmetric Pause bit */
+ gm_phy_write(hw, port, PHY_MARV_AUNE_ADV, ctrl);
+ }
+
+ skge_link_down(skge);
+
+ yukon_init(hw, port);
+}
+
+static void yukon_phy_intr(struct skge_port *skge)
+{
+ struct skge_hw *hw = skge->hw;
+ int port = skge->port;
+ const char *reason = NULL;
+ u16 istatus, phystat;
+
+ istatus = gm_phy_read(hw, port, PHY_MARV_INT_STAT);
+ phystat = gm_phy_read(hw, port, PHY_MARV_PHY_STAT);
+
+ netif_printk(skge, intr, KERN_DEBUG, skge->netdev,
+ "phy interrupt status 0x%x 0x%x\n", istatus, phystat);
+
+ if (istatus & PHY_M_IS_AN_COMPL) {
+ if (gm_phy_read(hw, port, PHY_MARV_AUNE_LP)
+ & PHY_M_AN_RF) {
+ reason = "remote fault";
+ goto failed;
+ }
+
+ if (gm_phy_read(hw, port, PHY_MARV_1000T_STAT) & PHY_B_1000S_MSF) {
+ reason = "master/slave fault";
+ goto failed;
+ }
+
+ if (!(phystat & PHY_M_PS_SPDUP_RES)) {
+ reason = "speed/duplex";
+ goto failed;
+ }
+
+ skge->duplex = (phystat & PHY_M_PS_FULL_DUP)
+ ? DUPLEX_FULL : DUPLEX_HALF;
+ skge->speed = yukon_speed(hw, phystat);
+
+ /* We are using IEEE 802.3z/D5.0 Table 37-4 */
+ switch (phystat & PHY_M_PS_PAUSE_MSK) {
+ case PHY_M_PS_PAUSE_MSK:
+ skge->flow_status = FLOW_STAT_SYMMETRIC;
+ break;
+ case PHY_M_PS_RX_P_EN:
+ skge->flow_status = FLOW_STAT_REM_SEND;
+ break;
+ case PHY_M_PS_TX_P_EN:
+ skge->flow_status = FLOW_STAT_LOC_SEND;
+ break;
+ default:
+ skge->flow_status = FLOW_STAT_NONE;
+ }
+
+ if (skge->flow_status == FLOW_STAT_NONE ||
+ (skge->speed < SPEED_1000 && skge->duplex == DUPLEX_HALF))
+ skge_write8(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_OFF);
+ else
+ skge_write8(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_ON);
+ yukon_link_up(skge);
+ return;
+ }
+
+ if (istatus & PHY_M_IS_LSP_CHANGE)
+ skge->speed = yukon_speed(hw, phystat);
+
+ if (istatus & PHY_M_IS_DUP_CHANGE)
+ skge->duplex = (phystat & PHY_M_PS_FULL_DUP) ? DUPLEX_FULL : DUPLEX_HALF;
+ if (istatus & PHY_M_IS_LST_CHANGE) {
+ if (phystat & PHY_M_PS_LINK_UP)
+ yukon_link_up(skge);
+ else
+ yukon_link_down(skge);
+ }
+ return;
+ failed:
+ pr_err("%s: autonegotiation failed (%s)\n", skge->netdev->name, reason);
+
+ /* XXX restart autonegotiation? */
+}
+
+static void skge_phy_reset(struct skge_port *skge)
+{
+ struct skge_hw *hw = skge->hw;
+ int port = skge->port;
+ struct net_device *dev = hw->dev[port];
+
+ netif_stop_queue(skge->netdev);
+ netif_carrier_off(skge->netdev);
+
+ spin_lock_bh(&hw->phy_lock);
+ if (is_genesis(hw)) {
+ genesis_reset(hw, port);
+ genesis_mac_init(hw, port);
+ } else {
+ yukon_reset(hw, port);
+ yukon_init(hw, port);
+ }
+ spin_unlock_bh(&hw->phy_lock);
+
+ skge_set_multicast(dev);
+}
+
+/* Basic MII support */
+static int skge_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
+{
+ struct mii_ioctl_data *data = if_mii(ifr);
+ struct skge_port *skge = netdev_priv(dev);
+ struct skge_hw *hw = skge->hw;
+ int err = -EOPNOTSUPP;
+
+ if (!netif_running(dev))
+ return -ENODEV; /* Phy still in reset */
+
+ switch (cmd) {
+ case SIOCGMIIPHY:
+ data->phy_id = hw->phy_addr;
+
+ /* fallthru */
+ case SIOCGMIIREG: {
+ u16 val = 0;
+ spin_lock_bh(&hw->phy_lock);
+
+ if (is_genesis(hw))
+ err = __xm_phy_read(hw, skge->port, data->reg_num & 0x1f, &val);
+ else
+ err = __gm_phy_read(hw, skge->port, data->reg_num & 0x1f, &val);
+ spin_unlock_bh(&hw->phy_lock);
+ data->val_out = val;
+ break;
+ }
+
+ case SIOCSMIIREG:
+ spin_lock_bh(&hw->phy_lock);
+ if (is_genesis(hw))
+ err = xm_phy_write(hw, skge->port, data->reg_num & 0x1f,
+ data->val_in);
+ else
+ err = gm_phy_write(hw, skge->port, data->reg_num & 0x1f,
+ data->val_in);
+ spin_unlock_bh(&hw->phy_lock);
+ break;
+ }
+ return err;
+}
+
+static void skge_ramset(struct skge_hw *hw, u16 q, u32 start, size_t len)
+{
+ u32 end;
+
+ start /= 8;
+ len /= 8;
+ end = start + len - 1;
+
+ skge_write8(hw, RB_ADDR(q, RB_CTRL), RB_RST_CLR);
+ skge_write32(hw, RB_ADDR(q, RB_START), start);
+ skge_write32(hw, RB_ADDR(q, RB_WP), start);
+ skge_write32(hw, RB_ADDR(q, RB_RP), start);
+ skge_write32(hw, RB_ADDR(q, RB_END), end);
+
+ if (q == Q_R1 || q == Q_R2) {
+ /* Set thresholds on receive queue's */
+ skge_write32(hw, RB_ADDR(q, RB_RX_UTPP),
+ start + (2*len)/3);
+ skge_write32(hw, RB_ADDR(q, RB_RX_LTPP),
+ start + (len/3));
+ } else {
+ /* Enable store & forward on Tx queue's because
+ * Tx FIFO is only 4K on Genesis and 1K on Yukon
+ */
+ skge_write8(hw, RB_ADDR(q, RB_CTRL), RB_ENA_STFWD);
+ }
+
+ skge_write8(hw, RB_ADDR(q, RB_CTRL), RB_ENA_OP_MD);
+}
+
+/* Setup Bus Memory Interface */
+static void skge_qset(struct skge_port *skge, u16 q,
+ const struct skge_element *e)
+{
+ struct skge_hw *hw = skge->hw;
+ u32 watermark = 0x600;
+ u64 base = skge->dma + (e->desc - skge->mem);
+
+ /* optimization to reduce window on 32bit/33mhz */
+ if ((skge_read16(hw, B0_CTST) & (CS_BUS_CLOCK | CS_BUS_SLOT_SZ)) == 0)
+ watermark /= 2;
+
+ skge_write32(hw, Q_ADDR(q, Q_CSR), CSR_CLR_RESET);
+ skge_write32(hw, Q_ADDR(q, Q_F), watermark);
+ skge_write32(hw, Q_ADDR(q, Q_DA_H), (u32)(base >> 32));
+ skge_write32(hw, Q_ADDR(q, Q_DA_L), (u32)base);
+}
+
+static int skge_up(struct net_device *dev)
+{
+ struct skge_port *skge = netdev_priv(dev);
+ struct skge_hw *hw = skge->hw;
+ int port = skge->port;
+ u32 chunk, ram_addr;
+ size_t rx_size, tx_size;
+ int err;
+
+ if (!is_valid_ether_addr(dev->dev_addr))
+ return -EINVAL;
+
+ netif_info(skge, ifup, skge->netdev, "enabling interface\n");
+
+ if (dev->mtu > RX_BUF_SIZE)
+ skge->rx_buf_size = dev->mtu + ETH_HLEN;
+ else
+ skge->rx_buf_size = RX_BUF_SIZE;
+
+
+ rx_size = skge->rx_ring.count * sizeof(struct skge_rx_desc);
+ tx_size = skge->tx_ring.count * sizeof(struct skge_tx_desc);
+ skge->mem_size = tx_size + rx_size;
+ skge->mem = pci_alloc_consistent(hw->pdev, skge->mem_size, &skge->dma);
+ if (!skge->mem)
+ return -ENOMEM;
+
+ BUG_ON(skge->dma & 7);
+
+ if (upper_32_bits(skge->dma) != upper_32_bits(skge->dma + skge->mem_size)) {
+ dev_err(&hw->pdev->dev, "pci_alloc_consistent region crosses 4G boundary\n");
+ err = -EINVAL;
+ goto free_pci_mem;
+ }
+
+ memset(skge->mem, 0, skge->mem_size);
+
+ err = skge_ring_alloc(&skge->rx_ring, skge->mem, skge->dma);
+ if (err)
+ goto free_pci_mem;
+
+ err = skge_rx_fill(dev);
+ if (err)
+ goto free_rx_ring;
+
+ err = skge_ring_alloc(&skge->tx_ring, skge->mem + rx_size,
+ skge->dma + rx_size);
+ if (err)
+ goto free_rx_ring;
+
+ if (hw->ports == 1) {
+ err = request_irq(hw->pdev->irq, skge_intr, IRQF_SHARED,
+ dev->name, hw);
+ if (err) {
+ netdev_err(dev, "Unable to allocate interrupt %d error: %d\n",
+ hw->pdev->irq, err);
+ goto free_tx_ring;
+ }
+ }
+
+ /* Initialize MAC */
+ netif_carrier_off(dev);
+ spin_lock_bh(&hw->phy_lock);
+ if (is_genesis(hw))
+ genesis_mac_init(hw, port);
+ else
+ yukon_mac_init(hw, port);
+ spin_unlock_bh(&hw->phy_lock);
+
+ /* Configure RAMbuffers - equally between ports and tx/rx */
+ chunk = (hw->ram_size - hw->ram_offset) / (hw->ports * 2);
+ ram_addr = hw->ram_offset + 2 * chunk * port;
+
+ skge_ramset(hw, rxqaddr[port], ram_addr, chunk);
+ skge_qset(skge, rxqaddr[port], skge->rx_ring.to_clean);
+
+ BUG_ON(skge->tx_ring.to_use != skge->tx_ring.to_clean);
+ skge_ramset(hw, txqaddr[port], ram_addr+chunk, chunk);
+ skge_qset(skge, txqaddr[port], skge->tx_ring.to_use);
+
+ /* Start receiver BMU */
+ wmb();
+ skge_write8(hw, Q_ADDR(rxqaddr[port], Q_CSR), CSR_START | CSR_IRQ_CL_F);
+ skge_led(skge, LED_MODE_ON);
+
+ spin_lock_irq(&hw->hw_lock);
+ hw->intr_mask |= portmask[port];
+ skge_write32(hw, B0_IMSK, hw->intr_mask);
+ skge_read32(hw, B0_IMSK);
+ spin_unlock_irq(&hw->hw_lock);
+
+ napi_enable(&skge->napi);
+
+ skge_set_multicast(dev);
+
+ return 0;
+
+ free_tx_ring:
+ kfree(skge->tx_ring.start);
+ free_rx_ring:
+ skge_rx_clean(skge);
+ kfree(skge->rx_ring.start);
+ free_pci_mem:
+ pci_free_consistent(hw->pdev, skge->mem_size, skge->mem, skge->dma);
+ skge->mem = NULL;
+
+ return err;
+}
+
+/* stop receiver */
+static void skge_rx_stop(struct skge_hw *hw, int port)
+{
+ skge_write8(hw, Q_ADDR(rxqaddr[port], Q_CSR), CSR_STOP);
+ skge_write32(hw, RB_ADDR(port ? Q_R2 : Q_R1, RB_CTRL),
+ RB_RST_SET|RB_DIS_OP_MD);
+ skge_write32(hw, Q_ADDR(rxqaddr[port], Q_CSR), CSR_SET_RESET);
+}
+
+static int skge_down(struct net_device *dev)
+{
+ struct skge_port *skge = netdev_priv(dev);
+ struct skge_hw *hw = skge->hw;
+ int port = skge->port;
+
+ if (skge->mem == NULL)
+ return 0;
+
+ netif_info(skge, ifdown, skge->netdev, "disabling interface\n");
+
+ netif_tx_disable(dev);
+
+ if (is_genesis(hw) && hw->phy_type == SK_PHY_XMAC)
+ del_timer_sync(&skge->link_timer);
+
+ napi_disable(&skge->napi);
+ netif_carrier_off(dev);
+
+ spin_lock_irq(&hw->hw_lock);
+ hw->intr_mask &= ~portmask[port];
+ skge_write32(hw, B0_IMSK, (hw->ports == 1) ? 0 : hw->intr_mask);
+ skge_read32(hw, B0_IMSK);
+ spin_unlock_irq(&hw->hw_lock);
+
+ if (hw->ports == 1)
+ free_irq(hw->pdev->irq, hw);
+
+ skge_write8(skge->hw, SK_REG(skge->port, LNK_LED_REG), LED_OFF);
+ if (is_genesis(hw))
+ genesis_stop(skge);
+ else
+ yukon_stop(skge);
+
+ /* Stop transmitter */
+ skge_write8(hw, Q_ADDR(txqaddr[port], Q_CSR), CSR_STOP);
+ skge_write32(hw, RB_ADDR(txqaddr[port], RB_CTRL),
+ RB_RST_SET|RB_DIS_OP_MD);
+
+
+ /* Disable Force Sync bit and Enable Alloc bit */
+ skge_write8(hw, SK_REG(port, TXA_CTRL),
+ TXA_DIS_FSYNC | TXA_DIS_ALLOC | TXA_STOP_RC);
+
+ /* Stop Interval Timer and Limit Counter of Tx Arbiter */
+ skge_write32(hw, SK_REG(port, TXA_ITI_INI), 0L);
+ skge_write32(hw, SK_REG(port, TXA_LIM_INI), 0L);
+
+ /* Reset PCI FIFO */
+ skge_write32(hw, Q_ADDR(txqaddr[port], Q_CSR), CSR_SET_RESET);
+ skge_write32(hw, RB_ADDR(txqaddr[port], RB_CTRL), RB_RST_SET);
+
+ /* Reset the RAM Buffer async Tx queue */
+ skge_write8(hw, RB_ADDR(port == 0 ? Q_XA1 : Q_XA2, RB_CTRL), RB_RST_SET);
+
+ skge_rx_stop(hw, port);
+
+ if (is_genesis(hw)) {
+ skge_write8(hw, SK_REG(port, TX_MFF_CTRL2), MFF_RST_SET);
+ skge_write8(hw, SK_REG(port, RX_MFF_CTRL2), MFF_RST_SET);
+ } else {
+ skge_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_SET);
+ skge_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_RST_SET);
+ }
+
+ skge_led(skge, LED_MODE_OFF);
+
+ netif_tx_lock_bh(dev);
+ skge_tx_clean(dev);
+ netif_tx_unlock_bh(dev);
+
+ skge_rx_clean(skge);
+
+ kfree(skge->rx_ring.start);
+ kfree(skge->tx_ring.start);
+ pci_free_consistent(hw->pdev, skge->mem_size, skge->mem, skge->dma);
+ skge->mem = NULL;
+ return 0;
+}
+
+static inline int skge_avail(const struct skge_ring *ring)
+{
+ smp_mb();
+ return ((ring->to_clean > ring->to_use) ? 0 : ring->count)
+ + (ring->to_clean - ring->to_use) - 1;
+}
+
+static netdev_tx_t skge_xmit_frame(struct sk_buff *skb,
+ struct net_device *dev)
+{
+ struct skge_port *skge = netdev_priv(dev);
+ struct skge_hw *hw = skge->hw;
+ struct skge_element *e;
+ struct skge_tx_desc *td;
+ int i;
+ u32 control, len;
+ dma_addr_t map;
+
+ if (skb_padto(skb, ETH_ZLEN))
+ return NETDEV_TX_OK;
+
+ if (unlikely(skge_avail(&skge->tx_ring) < skb_shinfo(skb)->nr_frags + 1))
+ return NETDEV_TX_BUSY;
+
+ e = skge->tx_ring.to_use;
+ td = e->desc;
+ BUG_ON(td->control & BMU_OWN);
+ e->skb = skb;
+ len = skb_headlen(skb);
+ map = pci_map_single(hw->pdev, skb->data, len, PCI_DMA_TODEVICE);
+ if (pci_dma_mapping_error(hw->pdev, map))
+ goto mapping_error;
+
+ dma_unmap_addr_set(e, mapaddr, map);
+ dma_unmap_len_set(e, maplen, len);
+
+ td->dma_lo = lower_32_bits(map);
+ td->dma_hi = upper_32_bits(map);
+
+ if (skb->ip_summed == CHECKSUM_PARTIAL) {
+ const int offset = skb_checksum_start_offset(skb);
+
+ /* This seems backwards, but it is what the sk98lin
+ * does. Looks like hardware is wrong?
+ */
+ if (ipip_hdr(skb)->protocol == IPPROTO_UDP &&
+ hw->chip_rev == 0 && hw->chip_id == CHIP_ID_YUKON)
+ control = BMU_TCP_CHECK;
+ else
+ control = BMU_UDP_CHECK;
+
+ td->csum_offs = 0;
+ td->csum_start = offset;
+ td->csum_write = offset + skb->csum_offset;
+ } else
+ control = BMU_CHECK;
+
+ if (!skb_shinfo(skb)->nr_frags) /* single buffer i.e. no fragments */
+ control |= BMU_EOF | BMU_IRQ_EOF;
+ else {
+ struct skge_tx_desc *tf = td;
+
+ control |= BMU_STFWD;
+ for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
+ const skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
+
+ map = skb_frag_dma_map(&hw->pdev->dev, frag, 0,
+ skb_frag_size(frag), DMA_TO_DEVICE);
+ if (dma_mapping_error(&hw->pdev->dev, map))
+ goto mapping_unwind;
+
+ e = e->next;
+ e->skb = skb;
+ tf = e->desc;
+ BUG_ON(tf->control & BMU_OWN);
+
+ tf->dma_lo = lower_32_bits(map);
+ tf->dma_hi = upper_32_bits(map);
+ dma_unmap_addr_set(e, mapaddr, map);
+ dma_unmap_len_set(e, maplen, skb_frag_size(frag));
+
+ tf->control = BMU_OWN | BMU_SW | control | skb_frag_size(frag);
+ }
+ tf->control |= BMU_EOF | BMU_IRQ_EOF;
+ }
+ /* Make sure all the descriptors written */
+ wmb();
+ td->control = BMU_OWN | BMU_SW | BMU_STF | control | len;
+ wmb();
+
+ netdev_sent_queue(dev, skb->len);
+
+ skge_write8(hw, Q_ADDR(txqaddr[skge->port], Q_CSR), CSR_START);
+
+ netif_printk(skge, tx_queued, KERN_DEBUG, skge->netdev,
+ "tx queued, slot %td, len %d\n",
+ e - skge->tx_ring.start, skb->len);
+
+ skge->tx_ring.to_use = e->next;
+ smp_wmb();
+
+ if (skge_avail(&skge->tx_ring) <= TX_LOW_WATER) {
+ netdev_dbg(dev, "transmit queue full\n");
+ netif_stop_queue(dev);
+ }
+
+ return NETDEV_TX_OK;
+
+mapping_unwind:
+ e = skge->tx_ring.to_use;
+ pci_unmap_single(hw->pdev,
+ dma_unmap_addr(e, mapaddr),
+ dma_unmap_len(e, maplen),
+ PCI_DMA_TODEVICE);
+ while (i-- > 0) {
+ e = e->next;
+ pci_unmap_page(hw->pdev,
+ dma_unmap_addr(e, mapaddr),
+ dma_unmap_len(e, maplen),
+ PCI_DMA_TODEVICE);
+ }
+
+mapping_error:
+ if (net_ratelimit())
+ dev_warn(&hw->pdev->dev, "%s: tx mapping error\n", dev->name);
+ dev_kfree_skb_any(skb);
+ return NETDEV_TX_OK;
+}
+
+
+/* Free resources associated with this reing element */
+static inline void skge_tx_unmap(struct pci_dev *pdev, struct skge_element *e,
+ u32 control)
+{
+ /* skb header vs. fragment */
+ if (control & BMU_STF)
+ pci_unmap_single(pdev, dma_unmap_addr(e, mapaddr),
+ dma_unmap_len(e, maplen),
+ PCI_DMA_TODEVICE);
+ else
+ pci_unmap_page(pdev, dma_unmap_addr(e, mapaddr),
+ dma_unmap_len(e, maplen),
+ PCI_DMA_TODEVICE);
+}
+
+/* Free all buffers in transmit ring */
+static void skge_tx_clean(struct net_device *dev)
+{
+ struct skge_port *skge = netdev_priv(dev);
+ struct skge_element *e;
+
+ for (e = skge->tx_ring.to_clean; e != skge->tx_ring.to_use; e = e->next) {
+ struct skge_tx_desc *td = e->desc;
+
+ skge_tx_unmap(skge->hw->pdev, e, td->control);
+
+ if (td->control & BMU_EOF)
+ dev_kfree_skb(e->skb);
+ td->control = 0;
+ }
+
+ netdev_reset_queue(dev);
+ skge->tx_ring.to_clean = e;
+}
+
+static void skge_tx_timeout(struct net_device *dev)
+{
+ struct skge_port *skge = netdev_priv(dev);
+
+ netif_printk(skge, timer, KERN_DEBUG, skge->netdev, "tx timeout\n");
+
+ skge_write8(skge->hw, Q_ADDR(txqaddr[skge->port], Q_CSR), CSR_STOP);
+ skge_tx_clean(dev);
+ netif_wake_queue(dev);
+}
+
+static int skge_change_mtu(struct net_device *dev, int new_mtu)
+{
+ int err;
+
+ if (new_mtu < ETH_ZLEN || new_mtu > ETH_JUMBO_MTU)
+ return -EINVAL;
+
+ if (!netif_running(dev)) {
+ dev->mtu = new_mtu;
+ return 0;
+ }
+
+ skge_down(dev);
+
+ dev->mtu = new_mtu;
+
+ err = skge_up(dev);
+ if (err)
+ dev_close(dev);
+
+ return err;
+}
+
+static const u8 pause_mc_addr[ETH_ALEN] = { 0x1, 0x80, 0xc2, 0x0, 0x0, 0x1 };
+
+static void genesis_add_filter(u8 filter[8], const u8 *addr)
+{
+ u32 crc, bit;
+
+ crc = ether_crc_le(ETH_ALEN, addr);
+ bit = ~crc & 0x3f;
+ filter[bit/8] |= 1 << (bit%8);
+}
+
+static void genesis_set_multicast(struct net_device *dev)
+{
+ struct skge_port *skge = netdev_priv(dev);
+ struct skge_hw *hw = skge->hw;
+ int port = skge->port;
+ struct netdev_hw_addr *ha;
+ u32 mode;
+ u8 filter[8];
+
+ mode = xm_read32(hw, port, XM_MODE);
+ mode |= XM_MD_ENA_HASH;
+ if (dev->flags & IFF_PROMISC)
+ mode |= XM_MD_ENA_PROM;
+ else
+ mode &= ~XM_MD_ENA_PROM;
+
+ if (dev->flags & IFF_ALLMULTI)
+ memset(filter, 0xff, sizeof(filter));
+ else {
+ memset(filter, 0, sizeof(filter));
+
+ if (skge->flow_status == FLOW_STAT_REM_SEND ||
+ skge->flow_status == FLOW_STAT_SYMMETRIC)
+ genesis_add_filter(filter, pause_mc_addr);
+
+ netdev_for_each_mc_addr(ha, dev)
+ genesis_add_filter(filter, ha->addr);
+ }
+
+ xm_write32(hw, port, XM_MODE, mode);
+ xm_outhash(hw, port, XM_HSM, filter);
+}
+
+static void yukon_add_filter(u8 filter[8], const u8 *addr)
+{
+ u32 bit = ether_crc(ETH_ALEN, addr) & 0x3f;
+ filter[bit/8] |= 1 << (bit%8);
+}
+
+static void yukon_set_multicast(struct net_device *dev)
+{
+ struct skge_port *skge = netdev_priv(dev);
+ struct skge_hw *hw = skge->hw;
+ int port = skge->port;
+ struct netdev_hw_addr *ha;
+ int rx_pause = (skge->flow_status == FLOW_STAT_REM_SEND ||
+ skge->flow_status == FLOW_STAT_SYMMETRIC);
+ u16 reg;
+ u8 filter[8];
+
+ memset(filter, 0, sizeof(filter));
+
+ reg = gma_read16(hw, port, GM_RX_CTRL);
+ reg |= GM_RXCR_UCF_ENA;
+
+ if (dev->flags & IFF_PROMISC) /* promiscuous */
+ reg &= ~(GM_RXCR_UCF_ENA | GM_RXCR_MCF_ENA);
+ else if (dev->flags & IFF_ALLMULTI) /* all multicast */
+ memset(filter, 0xff, sizeof(filter));
+ else if (netdev_mc_empty(dev) && !rx_pause)/* no multicast */
+ reg &= ~GM_RXCR_MCF_ENA;
+ else {
+ reg |= GM_RXCR_MCF_ENA;
+
+ if (rx_pause)
+ yukon_add_filter(filter, pause_mc_addr);
+
+ netdev_for_each_mc_addr(ha, dev)
+ yukon_add_filter(filter, ha->addr);
+ }
+
+
+ gma_write16(hw, port, GM_MC_ADDR_H1,
+ (u16)filter[0] | ((u16)filter[1] << 8));
+ gma_write16(hw, port, GM_MC_ADDR_H2,
+ (u16)filter[2] | ((u16)filter[3] << 8));
+ gma_write16(hw, port, GM_MC_ADDR_H3,
+ (u16)filter[4] | ((u16)filter[5] << 8));
+ gma_write16(hw, port, GM_MC_ADDR_H4,
+ (u16)filter[6] | ((u16)filter[7] << 8));
+
+ gma_write16(hw, port, GM_RX_CTRL, reg);
+}
+
+static inline u16 phy_length(const struct skge_hw *hw, u32 status)
+{
+ if (is_genesis(hw))
+ return status >> XMR_FS_LEN_SHIFT;
+ else
+ return status >> GMR_FS_LEN_SHIFT;
+}
+
+static inline int bad_phy_status(const struct skge_hw *hw, u32 status)
+{
+ if (is_genesis(hw))
+ return (status & (XMR_FS_ERR | XMR_FS_2L_VLAN)) != 0;
+ else
+ return (status & GMR_FS_ANY_ERR) ||
+ (status & GMR_FS_RX_OK) == 0;
+}
+
+static void skge_set_multicast(struct net_device *dev)
+{
+ struct skge_port *skge = netdev_priv(dev);
+
+ if (is_genesis(skge->hw))
+ genesis_set_multicast(dev);
+ else
+ yukon_set_multicast(dev);
+
+}
+
+
+/* Get receive buffer from descriptor.
+ * Handles copy of small buffers and reallocation failures
+ */
+static struct sk_buff *skge_rx_get(struct net_device *dev,
+ struct skge_element *e,
+ u32 control, u32 status, u16 csum)
+{
+ struct skge_port *skge = netdev_priv(dev);
+ struct sk_buff *skb;
+ u16 len = control & BMU_BBC;
+
+ netif_printk(skge, rx_status, KERN_DEBUG, skge->netdev,
+ "rx slot %td status 0x%x len %d\n",
+ e - skge->rx_ring.start, status, len);
+
+ if (len > skge->rx_buf_size)
+ goto error;
+
+ if ((control & (BMU_EOF|BMU_STF)) != (BMU_STF|BMU_EOF))
+ goto error;
+
+ if (bad_phy_status(skge->hw, status))
+ goto error;
+
+ if (phy_length(skge->hw, status) != len)
+ goto error;
+
+ if (len < RX_COPY_THRESHOLD) {
+ skb = netdev_alloc_skb_ip_align(dev, len);
+ if (!skb)
+ goto resubmit;
+
+ pci_dma_sync_single_for_cpu(skge->hw->pdev,
+ dma_unmap_addr(e, mapaddr),
+ dma_unmap_len(e, maplen),
+ PCI_DMA_FROMDEVICE);
+ skb_copy_from_linear_data(e->skb, skb->data, len);
+ pci_dma_sync_single_for_device(skge->hw->pdev,
+ dma_unmap_addr(e, mapaddr),
+ dma_unmap_len(e, maplen),
+ PCI_DMA_FROMDEVICE);
+ skge_rx_reuse(e, skge->rx_buf_size);
+ } else {
+ struct skge_element ee;
+ struct sk_buff *nskb;
+
+ nskb = netdev_alloc_skb_ip_align(dev, skge->rx_buf_size);
+ if (!nskb)
+ goto resubmit;
+
+ ee = *e;
+
+ skb = ee.skb;
+ prefetch(skb->data);
+
+ if (skge_rx_setup(skge, e, nskb, skge->rx_buf_size) < 0) {
+ dev_kfree_skb(nskb);
+ goto resubmit;
+ }
+
+ pci_unmap_single(skge->hw->pdev,
+ dma_unmap_addr(&ee, mapaddr),
+ dma_unmap_len(&ee, maplen),
+ PCI_DMA_FROMDEVICE);
+ }
+
+ skb_put(skb, len);
+
+ if (dev->features & NETIF_F_RXCSUM) {
+ skb->csum = csum;
+ skb->ip_summed = CHECKSUM_COMPLETE;
+ }
+
+ skb->protocol = eth_type_trans(skb, dev);
+
+ return skb;
+error:
+
+ netif_printk(skge, rx_err, KERN_DEBUG, skge->netdev,
+ "rx err, slot %td control 0x%x status 0x%x\n",
+ e - skge->rx_ring.start, control, status);
+
+ if (is_genesis(skge->hw)) {
+ if (status & (XMR_FS_RUNT|XMR_FS_LNG_ERR))
+ dev->stats.rx_length_errors++;
+ if (status & XMR_FS_FRA_ERR)
+ dev->stats.rx_frame_errors++;
+ if (status & XMR_FS_FCS_ERR)
+ dev->stats.rx_crc_errors++;
+ } else {
+ if (status & (GMR_FS_LONG_ERR|GMR_FS_UN_SIZE))
+ dev->stats.rx_length_errors++;
+ if (status & GMR_FS_FRAGMENT)
+ dev->stats.rx_frame_errors++;
+ if (status & GMR_FS_CRC_ERR)
+ dev->stats.rx_crc_errors++;
+ }
+
+resubmit:
+ skge_rx_reuse(e, skge->rx_buf_size);
+ return NULL;
+}
+
+/* Free all buffers in Tx ring which are no longer owned by device */
+static void skge_tx_done(struct net_device *dev)
+{
+ struct skge_port *skge = netdev_priv(dev);
+ struct skge_ring *ring = &skge->tx_ring;
+ struct skge_element *e;
+ unsigned int bytes_compl = 0, pkts_compl = 0;
+
+ skge_write8(skge->hw, Q_ADDR(txqaddr[skge->port], Q_CSR), CSR_IRQ_CL_F);
+
+ for (e = ring->to_clean; e != ring->to_use; e = e->next) {
+ u32 control = ((const struct skge_tx_desc *) e->desc)->control;
+
+ if (control & BMU_OWN)
+ break;
+
+ skge_tx_unmap(skge->hw->pdev, e, control);
+
+ if (control & BMU_EOF) {
+ netif_printk(skge, tx_done, KERN_DEBUG, skge->netdev,
+ "tx done slot %td\n",
+ e - skge->tx_ring.start);
+
+ pkts_compl++;
+ bytes_compl += e->skb->len;
+
+ dev_consume_skb_any(e->skb);
+ }
+ }
+ netdev_completed_queue(dev, pkts_compl, bytes_compl);
+ skge->tx_ring.to_clean = e;
+
+ /* Can run lockless until we need to synchronize to restart queue. */
+ smp_mb();
+
+ if (unlikely(netif_queue_stopped(dev) &&
+ skge_avail(&skge->tx_ring) > TX_LOW_WATER)) {
+ netif_tx_lock(dev);
+ if (unlikely(netif_queue_stopped(dev) &&
+ skge_avail(&skge->tx_ring) > TX_LOW_WATER)) {
+ netif_wake_queue(dev);
+
+ }
+ netif_tx_unlock(dev);
+ }
+}
+
+static int skge_poll(struct napi_struct *napi, int to_do)
+{
+ struct skge_port *skge = container_of(napi, struct skge_port, napi);
+ struct net_device *dev = skge->netdev;
+ struct skge_hw *hw = skge->hw;
+ struct skge_ring *ring = &skge->rx_ring;
+ struct skge_element *e;
+ int work_done = 0;
+
+ skge_tx_done(dev);
+
+ skge_write8(hw, Q_ADDR(rxqaddr[skge->port], Q_CSR), CSR_IRQ_CL_F);
+
+ for (e = ring->to_clean; prefetch(e->next), work_done < to_do; e = e->next) {
+ struct skge_rx_desc *rd = e->desc;
+ struct sk_buff *skb;
+ u32 control;
+
+ rmb();
+ control = rd->control;
+ if (control & BMU_OWN)
+ break;
+
+ skb = skge_rx_get(dev, e, control, rd->status, rd->csum2);
+ if (likely(skb)) {
+ napi_gro_receive(napi, skb);
+ ++work_done;
+ }
+ }
+ ring->to_clean = e;
+
+ /* restart receiver */
+ wmb();
+ skge_write8(hw, Q_ADDR(rxqaddr[skge->port], Q_CSR), CSR_START);
+
+ if (work_done < to_do) {
+ unsigned long flags;
+
+ napi_gro_flush(napi, false);
+ spin_lock_irqsave(&hw->hw_lock, flags);
+ __napi_complete(napi);
+ hw->intr_mask |= napimask[skge->port];
+ skge_write32(hw, B0_IMSK, hw->intr_mask);
+ skge_read32(hw, B0_IMSK);
+ spin_unlock_irqrestore(&hw->hw_lock, flags);
+ }
+
+ return work_done;
+}
+
+/* Parity errors seem to happen when Genesis is connected to a switch
+ * with no other ports present. Heartbeat error??
+ */
+static void skge_mac_parity(struct skge_hw *hw, int port)
+{
+ struct net_device *dev = hw->dev[port];
+
+ ++dev->stats.tx_heartbeat_errors;
+
+ if (is_genesis(hw))
+ skge_write16(hw, SK_REG(port, TX_MFF_CTRL1),
+ MFF_CLR_PERR);
+ else
+ /* HW-Bug #8: cleared by GMF_CLI_TX_FC instead of GMF_CLI_TX_PE */
+ skge_write8(hw, SK_REG(port, TX_GMF_CTRL_T),
+ (hw->chip_id == CHIP_ID_YUKON && hw->chip_rev == 0)
+ ? GMF_CLI_TX_FC : GMF_CLI_TX_PE);
+}
+
+static void skge_mac_intr(struct skge_hw *hw, int port)
+{
+ if (is_genesis(hw))
+ genesis_mac_intr(hw, port);
+ else
+ yukon_mac_intr(hw, port);
+}
+
+/* Handle device specific framing and timeout interrupts */
+static void skge_error_irq(struct skge_hw *hw)
+{
+ struct pci_dev *pdev = hw->pdev;
+ u32 hwstatus = skge_read32(hw, B0_HWE_ISRC);
+
+ if (is_genesis(hw)) {
+ /* clear xmac errors */
+ if (hwstatus & (IS_NO_STAT_M1|IS_NO_TIST_M1))
+ skge_write16(hw, RX_MFF_CTRL1, MFF_CLR_INSTAT);
+ if (hwstatus & (IS_NO_STAT_M2|IS_NO_TIST_M2))
+ skge_write16(hw, RX_MFF_CTRL2, MFF_CLR_INSTAT);
+ } else {
+ /* Timestamp (unused) overflow */
+ if (hwstatus & IS_IRQ_TIST_OV)
+ skge_write8(hw, GMAC_TI_ST_CTRL, GMT_ST_CLR_IRQ);
+ }
+
+ if (hwstatus & IS_RAM_RD_PAR) {
+ dev_err(&pdev->dev, "Ram read data parity error\n");
+ skge_write16(hw, B3_RI_CTRL, RI_CLR_RD_PERR);
+ }
+
+ if (hwstatus & IS_RAM_WR_PAR) {
+ dev_err(&pdev->dev, "Ram write data parity error\n");
+ skge_write16(hw, B3_RI_CTRL, RI_CLR_WR_PERR);
+ }
+
+ if (hwstatus & IS_M1_PAR_ERR)
+ skge_mac_parity(hw, 0);
+
+ if (hwstatus & IS_M2_PAR_ERR)
+ skge_mac_parity(hw, 1);
+
+ if (hwstatus & IS_R1_PAR_ERR) {
+ dev_err(&pdev->dev, "%s: receive queue parity error\n",
+ hw->dev[0]->name);
+ skge_write32(hw, B0_R1_CSR, CSR_IRQ_CL_P);
+ }
+
+ if (hwstatus & IS_R2_PAR_ERR) {
+ dev_err(&pdev->dev, "%s: receive queue parity error\n",
+ hw->dev[1]->name);
+ skge_write32(hw, B0_R2_CSR, CSR_IRQ_CL_P);
+ }
+
+ if (hwstatus & (IS_IRQ_MST_ERR|IS_IRQ_STAT)) {
+ u16 pci_status, pci_cmd;
+
+ pci_read_config_word(pdev, PCI_COMMAND, &pci_cmd);
+ pci_read_config_word(pdev, PCI_STATUS, &pci_status);
+
+ dev_err(&pdev->dev, "PCI error cmd=%#x status=%#x\n",
+ pci_cmd, pci_status);
+
+ /* Write the error bits back to clear them. */
+ pci_status &= PCI_STATUS_ERROR_BITS;
+ skge_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON);
+ pci_write_config_word(pdev, PCI_COMMAND,
+ pci_cmd | PCI_COMMAND_SERR | PCI_COMMAND_PARITY);
+ pci_write_config_word(pdev, PCI_STATUS, pci_status);
+ skge_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF);
+
+ /* if error still set then just ignore it */
+ hwstatus = skge_read32(hw, B0_HWE_ISRC);
+ if (hwstatus & IS_IRQ_STAT) {
+ dev_warn(&hw->pdev->dev, "unable to clear error (so ignoring them)\n");
+ hw->intr_mask &= ~IS_HW_ERR;
+ }
+ }
+}
+
+/*
+ * Interrupt from PHY are handled in tasklet (softirq)
+ * because accessing phy registers requires spin wait which might
+ * cause excess interrupt latency.
+ */
+static void skge_extirq(unsigned long arg)
+{
+ struct skge_hw *hw = (struct skge_hw *) arg;
+ int port;
+
+ for (port = 0; port < hw->ports; port++) {
+ struct net_device *dev = hw->dev[port];
+
+ if (netif_running(dev)) {
+ struct skge_port *skge = netdev_priv(dev);
+
+ spin_lock(&hw->phy_lock);
+ if (!is_genesis(hw))
+ yukon_phy_intr(skge);
+ else if (hw->phy_type == SK_PHY_BCOM)
+ bcom_phy_intr(skge);
+ spin_unlock(&hw->phy_lock);
+ }
+ }
+
+ spin_lock_irq(&hw->hw_lock);
+ hw->intr_mask |= IS_EXT_REG;
+ skge_write32(hw, B0_IMSK, hw->intr_mask);
+ skge_read32(hw, B0_IMSK);
+ spin_unlock_irq(&hw->hw_lock);
+}
+
+static irqreturn_t skge_intr(int irq, void *dev_id)
+{
+ struct skge_hw *hw = dev_id;
+ u32 status;
+ int handled = 0;
+
+ spin_lock(&hw->hw_lock);
+ /* Reading this register masks IRQ */
+ status = skge_read32(hw, B0_SP_ISRC);
+ if (status == 0 || status == ~0)
+ goto out;
+
+ handled = 1;
+ status &= hw->intr_mask;
+ if (status & IS_EXT_REG) {
+ hw->intr_mask &= ~IS_EXT_REG;
+ tasklet_schedule(&hw->phy_task);
+ }
+
+ if (status & (IS_XA1_F|IS_R1_F)) {
+ struct skge_port *skge = netdev_priv(hw->dev[0]);
+ hw->intr_mask &= ~(IS_XA1_F|IS_R1_F);
+ napi_schedule(&skge->napi);
+ }
+
+ if (status & IS_PA_TO_TX1)
+ skge_write16(hw, B3_PA_CTRL, PA_CLR_TO_TX1);
+
+ if (status & IS_PA_TO_RX1) {
+ ++hw->dev[0]->stats.rx_over_errors;
+ skge_write16(hw, B3_PA_CTRL, PA_CLR_TO_RX1);
+ }
+
+
+ if (status & IS_MAC1)
+ skge_mac_intr(hw, 0);
+
+ if (hw->dev[1]) {
+ struct skge_port *skge = netdev_priv(hw->dev[1]);
+
+ if (status & (IS_XA2_F|IS_R2_F)) {
+ hw->intr_mask &= ~(IS_XA2_F|IS_R2_F);
+ napi_schedule(&skge->napi);
+ }
+
+ if (status & IS_PA_TO_RX2) {
+ ++hw->dev[1]->stats.rx_over_errors;
+ skge_write16(hw, B3_PA_CTRL, PA_CLR_TO_RX2);
+ }
+
+ if (status & IS_PA_TO_TX2)
+ skge_write16(hw, B3_PA_CTRL, PA_CLR_TO_TX2);
+
+ if (status & IS_MAC2)
+ skge_mac_intr(hw, 1);
+ }
+
+ if (status & IS_HW_ERR)
+ skge_error_irq(hw);
+out:
+ skge_write32(hw, B0_IMSK, hw->intr_mask);
+ skge_read32(hw, B0_IMSK);
+ spin_unlock(&hw->hw_lock);
+
+ return IRQ_RETVAL(handled);
+}
+
+#ifdef CONFIG_NET_POLL_CONTROLLER
+static void skge_netpoll(struct net_device *dev)
+{
+ struct skge_port *skge = netdev_priv(dev);
+
+ disable_irq(dev->irq);
+ skge_intr(dev->irq, skge->hw);
+ enable_irq(dev->irq);
+}
+#endif
+
+static int skge_set_mac_address(struct net_device *dev, void *p)
+{
+ struct skge_port *skge = netdev_priv(dev);
+ struct skge_hw *hw = skge->hw;
+ unsigned port = skge->port;
+ const struct sockaddr *addr = p;
+ u16 ctrl;
+
+ if (!is_valid_ether_addr(addr->sa_data))
+ return -EADDRNOTAVAIL;
+
+ memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN);
+
+ if (!netif_running(dev)) {
+ memcpy_toio(hw->regs + B2_MAC_1 + port*8, dev->dev_addr, ETH_ALEN);
+ memcpy_toio(hw->regs + B2_MAC_2 + port*8, dev->dev_addr, ETH_ALEN);
+ } else {
+ /* disable Rx */
+ spin_lock_bh(&hw->phy_lock);
+ ctrl = gma_read16(hw, port, GM_GP_CTRL);
+ gma_write16(hw, port, GM_GP_CTRL, ctrl & ~GM_GPCR_RX_ENA);
+
+ memcpy_toio(hw->regs + B2_MAC_1 + port*8, dev->dev_addr, ETH_ALEN);
+ memcpy_toio(hw->regs + B2_MAC_2 + port*8, dev->dev_addr, ETH_ALEN);
+
+ if (is_genesis(hw))
+ xm_outaddr(hw, port, XM_SA, dev->dev_addr);
+ else {
+ gma_set_addr(hw, port, GM_SRC_ADDR_1L, dev->dev_addr);
+ gma_set_addr(hw, port, GM_SRC_ADDR_2L, dev->dev_addr);
+ }
+
+ gma_write16(hw, port, GM_GP_CTRL, ctrl);
+ spin_unlock_bh(&hw->phy_lock);
+ }
+
+ return 0;
+}
+
+static const struct {
+ u8 id;
+ const char *name;
+} skge_chips[] = {
+ { CHIP_ID_GENESIS, "Genesis" },
+ { CHIP_ID_YUKON, "Yukon" },
+ { CHIP_ID_YUKON_LITE, "Yukon-Lite"},
+ { CHIP_ID_YUKON_LP, "Yukon-LP"},
+};
+
+static const char *skge_board_name(const struct skge_hw *hw)
+{
+ int i;
+ static char buf[16];
+
+ for (i = 0; i < ARRAY_SIZE(skge_chips); i++)
+ if (skge_chips[i].id == hw->chip_id)
+ return skge_chips[i].name;
+
+ snprintf(buf, sizeof buf, "chipid 0x%x", hw->chip_id);
+ return buf;
+}
+
+
+/*
+ * Setup the board data structure, but don't bring up
+ * the port(s)
+ */
+static int skge_reset(struct skge_hw *hw)
+{
+ u32 reg;
+ u16 ctst, pci_status;
+ u8 t8, mac_cfg, pmd_type;
+ int i;
+
+ ctst = skge_read16(hw, B0_CTST);
+
+ /* do a SW reset */
+ skge_write8(hw, B0_CTST, CS_RST_SET);
+ skge_write8(hw, B0_CTST, CS_RST_CLR);
+
+ /* clear PCI errors, if any */
+ skge_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON);
+ skge_write8(hw, B2_TST_CTRL2, 0);
+
+ pci_read_config_word(hw->pdev, PCI_STATUS, &pci_status);
+ pci_write_config_word(hw->pdev, PCI_STATUS,
+ pci_status | PCI_STATUS_ERROR_BITS);
+ skge_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF);
+ skge_write8(hw, B0_CTST, CS_MRST_CLR);
+
+ /* restore CLK_RUN bits (for Yukon-Lite) */
+ skge_write16(hw, B0_CTST,
+ ctst & (CS_CLK_RUN_HOT|CS_CLK_RUN_RST|CS_CLK_RUN_ENA));
+
+ hw->chip_id = skge_read8(hw, B2_CHIP_ID);
+ hw->phy_type = skge_read8(hw, B2_E_1) & 0xf;
+ pmd_type = skge_read8(hw, B2_PMD_TYP);
+ hw->copper = (pmd_type == 'T' || pmd_type == '1');
+
+ switch (hw->chip_id) {
+ case CHIP_ID_GENESIS:
+#ifdef CONFIG_SKGE_GENESIS
+ switch (hw->phy_type) {
+ case SK_PHY_XMAC:
+ hw->phy_addr = PHY_ADDR_XMAC;
+ break;
+ case SK_PHY_BCOM:
+ hw->phy_addr = PHY_ADDR_BCOM;
+ break;
+ default:
+ dev_err(&hw->pdev->dev, "unsupported phy type 0x%x\n",
+ hw->phy_type);
+ return -EOPNOTSUPP;
+ }
+ break;
+#else
+ dev_err(&hw->pdev->dev, "Genesis chip detected but not configured\n");
+ return -EOPNOTSUPP;
+#endif
+
+ case CHIP_ID_YUKON:
+ case CHIP_ID_YUKON_LITE:
+ case CHIP_ID_YUKON_LP:
+ if (hw->phy_type < SK_PHY_MARV_COPPER && pmd_type != 'S')
+ hw->copper = 1;
+
+ hw->phy_addr = PHY_ADDR_MARV;
+ break;
+
+ default:
+ dev_err(&hw->pdev->dev, "unsupported chip type 0x%x\n",
+ hw->chip_id);
+ return -EOPNOTSUPP;
+ }
+
+ mac_cfg = skge_read8(hw, B2_MAC_CFG);
+ hw->ports = (mac_cfg & CFG_SNG_MAC) ? 1 : 2;
+ hw->chip_rev = (mac_cfg & CFG_CHIP_R_MSK) >> 4;
+
+ /* read the adapters RAM size */
+ t8 = skge_read8(hw, B2_E_0);
+ if (is_genesis(hw)) {
+ if (t8 == 3) {
+ /* special case: 4 x 64k x 36, offset = 0x80000 */
+ hw->ram_size = 0x100000;
+ hw->ram_offset = 0x80000;
+ } else
+ hw->ram_size = t8 * 512;
+ } else if (t8 == 0)
+ hw->ram_size = 0x20000;
+ else
+ hw->ram_size = t8 * 4096;
+
+ hw->intr_mask = IS_HW_ERR;
+
+ /* Use PHY IRQ for all but fiber based Genesis board */
+ if (!(is_genesis(hw) && hw->phy_type == SK_PHY_XMAC))
+ hw->intr_mask |= IS_EXT_REG;
+
+ if (is_genesis(hw))
+ genesis_init(hw);
+ else {
+ /* switch power to VCC (WA for VAUX problem) */
+ skge_write8(hw, B0_POWER_CTRL,
+ PC_VAUX_ENA | PC_VCC_ENA | PC_VAUX_OFF | PC_VCC_ON);
+
+ /* avoid boards with stuck Hardware error bits */
+ if ((skge_read32(hw, B0_ISRC) & IS_HW_ERR) &&
+ (skge_read32(hw, B0_HWE_ISRC) & IS_IRQ_SENSOR)) {
+ dev_warn(&hw->pdev->dev, "stuck hardware sensor bit\n");
+ hw->intr_mask &= ~IS_HW_ERR;
+ }
+
+ /* Clear PHY COMA */
+ skge_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON);
+ pci_read_config_dword(hw->pdev, PCI_DEV_REG1, &reg);
+ reg &= ~PCI_PHY_COMA;
+ pci_write_config_dword(hw->pdev, PCI_DEV_REG1, reg);
+ skge_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF);
+
+
+ for (i = 0; i < hw->ports; i++) {
+ skge_write16(hw, SK_REG(i, GMAC_LINK_CTRL), GMLC_RST_SET);
+ skge_write16(hw, SK_REG(i, GMAC_LINK_CTRL), GMLC_RST_CLR);
+ }
+ }
+
+ /* turn off hardware timer (unused) */
+ skge_write8(hw, B2_TI_CTRL, TIM_STOP);
+ skge_write8(hw, B2_TI_CTRL, TIM_CLR_IRQ);
+ skge_write8(hw, B0_LED, LED_STAT_ON);
+
+ /* enable the Tx Arbiters */
+ for (i = 0; i < hw->ports; i++)
+ skge_write8(hw, SK_REG(i, TXA_CTRL), TXA_ENA_ARB);
+
+ /* Initialize ram interface */
+ skge_write16(hw, B3_RI_CTRL, RI_RST_CLR);
+
+ skge_write8(hw, B3_RI_WTO_R1, SK_RI_TO_53);
+ skge_write8(hw, B3_RI_WTO_XA1, SK_RI_TO_53);
+ skge_write8(hw, B3_RI_WTO_XS1, SK_RI_TO_53);
+ skge_write8(hw, B3_RI_RTO_R1, SK_RI_TO_53);
+ skge_write8(hw, B3_RI_RTO_XA1, SK_RI_TO_53);
+ skge_write8(hw, B3_RI_RTO_XS1, SK_RI_TO_53);
+ skge_write8(hw, B3_RI_WTO_R2, SK_RI_TO_53);
+ skge_write8(hw, B3_RI_WTO_XA2, SK_RI_TO_53);
+ skge_write8(hw, B3_RI_WTO_XS2, SK_RI_TO_53);
+ skge_write8(hw, B3_RI_RTO_R2, SK_RI_TO_53);
+ skge_write8(hw, B3_RI_RTO_XA2, SK_RI_TO_53);
+ skge_write8(hw, B3_RI_RTO_XS2, SK_RI_TO_53);
+
+ skge_write32(hw, B0_HWE_IMSK, IS_ERR_MSK);
+
+ /* Set interrupt moderation for Transmit only
+ * Receive interrupts avoided by NAPI
+ */
+ skge_write32(hw, B2_IRQM_MSK, IS_XA1_F|IS_XA2_F);
+ skge_write32(hw, B2_IRQM_INI, skge_usecs2clk(hw, 100));
+ skge_write32(hw, B2_IRQM_CTRL, TIM_START);
+
+ /* Leave irq disabled until first port is brought up. */
+ skge_write32(hw, B0_IMSK, 0);
+
+ for (i = 0; i < hw->ports; i++) {
+ if (is_genesis(hw))
+ genesis_reset(hw, i);
+ else
+ yukon_reset(hw, i);
+ }
+
+ return 0;
+}
+
+
+#ifdef CONFIG_SKGE_DEBUG
+
+static struct dentry *skge_debug;
+
+static int skge_debug_show(struct seq_file *seq, void *v)
+{
+ struct net_device *dev = seq->private;
+ const struct skge_port *skge = netdev_priv(dev);
+ const struct skge_hw *hw = skge->hw;
+ const struct skge_element *e;
+
+ if (!netif_running(dev))
+ return -ENETDOWN;
+
+ seq_printf(seq, "IRQ src=%x mask=%x\n", skge_read32(hw, B0_ISRC),
+ skge_read32(hw, B0_IMSK));
+
+ seq_printf(seq, "Tx Ring: (%d)\n", skge_avail(&skge->tx_ring));
+ for (e = skge->tx_ring.to_clean; e != skge->tx_ring.to_use; e = e->next) {
+ const struct skge_tx_desc *t = e->desc;
+ seq_printf(seq, "%#x dma=%#x%08x %#x csum=%#x/%x/%x\n",
+ t->control, t->dma_hi, t->dma_lo, t->status,
+ t->csum_offs, t->csum_write, t->csum_start);
+ }
+
+ seq_printf(seq, "\nRx Ring:\n");
+ for (e = skge->rx_ring.to_clean; ; e = e->next) {
+ const struct skge_rx_desc *r = e->desc;
+
+ if (r->control & BMU_OWN)
+ break;
+
+ seq_printf(seq, "%#x dma=%#x%08x %#x %#x csum=%#x/%x\n",
+ r->control, r->dma_hi, r->dma_lo, r->status,
+ r->timestamp, r->csum1, r->csum1_start);
+ }
+
+ return 0;
+}
+
+static int skge_debug_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, skge_debug_show, inode->i_private);
+}
+
+static const struct file_operations skge_debug_fops = {
+ .owner = THIS_MODULE,
+ .open = skge_debug_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+/*
+ * Use network device events to create/remove/rename
+ * debugfs file entries
+ */
+static int skge_device_event(struct notifier_block *unused,
+ unsigned long event, void *ptr)
+{
+ struct net_device *dev = netdev_notifier_info_to_dev(ptr);
+ struct skge_port *skge;
+ struct dentry *d;
+
+ if (dev->netdev_ops->ndo_open != &skge_up || !skge_debug)
+ goto done;
+
+ skge = netdev_priv(dev);
+ switch (event) {
+ case NETDEV_CHANGENAME:
+ if (skge->debugfs) {
+ d = debugfs_rename(skge_debug, skge->debugfs,
+ skge_debug, dev->name);
+ if (d)
+ skge->debugfs = d;
+ else {
+ netdev_info(dev, "rename failed\n");
+ debugfs_remove(skge->debugfs);
+ }
+ }
+ break;
+
+ case NETDEV_GOING_DOWN:
+ if (skge->debugfs) {
+ debugfs_remove(skge->debugfs);
+ skge->debugfs = NULL;
+ }
+ break;
+
+ case NETDEV_UP:
+ d = debugfs_create_file(dev->name, S_IRUGO,
+ skge_debug, dev,
+ &skge_debug_fops);
+ if (!d || IS_ERR(d))
+ netdev_info(dev, "debugfs create failed\n");
+ else
+ skge->debugfs = d;
+ break;
+ }
+
+done:
+ return NOTIFY_DONE;
+}
+
+static struct notifier_block skge_notifier = {
+ .notifier_call = skge_device_event,
+};
+
+
+static __init void skge_debug_init(void)
+{
+ struct dentry *ent;
+
+ ent = debugfs_create_dir("skge", NULL);
+ if (!ent || IS_ERR(ent)) {
+ pr_info("debugfs create directory failed\n");
+ return;
+ }
+
+ skge_debug = ent;
+ register_netdevice_notifier(&skge_notifier);
+}
+
+static __exit void skge_debug_cleanup(void)
+{
+ if (skge_debug) {
+ unregister_netdevice_notifier(&skge_notifier);
+ debugfs_remove(skge_debug);
+ skge_debug = NULL;
+ }
+}
+
+#else
+#define skge_debug_init()
+#define skge_debug_cleanup()
+#endif
+
+static const struct net_device_ops skge_netdev_ops = {
+ .ndo_open = skge_up,
+ .ndo_stop = skge_down,
+ .ndo_start_xmit = skge_xmit_frame,
+ .ndo_do_ioctl = skge_ioctl,
+ .ndo_get_stats = skge_get_stats,
+ .ndo_tx_timeout = skge_tx_timeout,
+ .ndo_change_mtu = skge_change_mtu,
+ .ndo_validate_addr = eth_validate_addr,
+ .ndo_set_rx_mode = skge_set_multicast,
+ .ndo_set_mac_address = skge_set_mac_address,
+#ifdef CONFIG_NET_POLL_CONTROLLER
+ .ndo_poll_controller = skge_netpoll,
+#endif
+};
+
+
+/* Initialize network device */
+static struct net_device *skge_devinit(struct skge_hw *hw, int port,
+ int highmem)
+{
+ struct skge_port *skge;
+ struct net_device *dev = alloc_etherdev(sizeof(*skge));
+
+ if (!dev)
+ return NULL;
+
+ SET_NETDEV_DEV(dev, &hw->pdev->dev);
+ dev->netdev_ops = &skge_netdev_ops;
+ dev->ethtool_ops = &skge_ethtool_ops;
+ dev->watchdog_timeo = TX_WATCHDOG;
+ dev->irq = hw->pdev->irq;
+
+ if (highmem)
+ dev->features |= NETIF_F_HIGHDMA;
+
+ skge = netdev_priv(dev);
+ netif_napi_add(dev, &skge->napi, skge_poll, NAPI_WEIGHT);
+ skge->netdev = dev;
+ skge->hw = hw;
+ skge->msg_enable = netif_msg_init(debug, default_msg);
+
+ skge->tx_ring.count = DEFAULT_TX_RING_SIZE;
+ skge->rx_ring.count = DEFAULT_RX_RING_SIZE;
+
+ /* Auto speed and flow control */
+ skge->autoneg = AUTONEG_ENABLE;
+ skge->flow_control = FLOW_MODE_SYM_OR_REM;
+ skge->duplex = -1;
+ skge->speed = -1;
+ skge->advertising = skge_supported_modes(hw);
+
+ if (device_can_wakeup(&hw->pdev->dev)) {
+ skge->wol = wol_supported(hw) & WAKE_MAGIC;
+ device_set_wakeup_enable(&hw->pdev->dev, skge->wol);
+ }
+
+ hw->dev[port] = dev;
+
+ skge->port = port;
+
+ /* Only used for Genesis XMAC */
+ if (is_genesis(hw))
+ setup_timer(&skge->link_timer, xm_link_timer, (unsigned long) skge);
+ else {
+ dev->hw_features = NETIF_F_IP_CSUM | NETIF_F_SG |
+ NETIF_F_RXCSUM;
+ dev->features |= dev->hw_features;
+ }
+
+ /* read the mac address */
+ memcpy_fromio(dev->dev_addr, hw->regs + B2_MAC_1 + port*8, ETH_ALEN);
+
+ return dev;
+}
+
+static void skge_show_addr(struct net_device *dev)
+{
+ const struct skge_port *skge = netdev_priv(dev);
+
+ netif_info(skge, probe, skge->netdev, "addr %pM\n", dev->dev_addr);
+}
+
+static int only_32bit_dma;
+
+static int skge_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
+{
+ struct net_device *dev, *dev1;
+ struct skge_hw *hw;
+ int err, using_dac = 0;
+
+ err = pci_enable_device(pdev);
+ if (err) {
+ dev_err(&pdev->dev, "cannot enable PCI device\n");
+ goto err_out;
+ }
+
+ err = pci_request_regions(pdev, DRV_NAME);
+ if (err) {
+ dev_err(&pdev->dev, "cannot obtain PCI resources\n");
+ goto err_out_disable_pdev;
+ }
+
+ pci_set_master(pdev);
+
+ if (!only_32bit_dma && !pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) {
+ using_dac = 1;
+ err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
+ } else if (!(err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)))) {
+ using_dac = 0;
+ err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
+ }
+
+ if (err) {
+ dev_err(&pdev->dev, "no usable DMA configuration\n");
+ goto err_out_free_regions;
+ }
+
+#ifdef __BIG_ENDIAN
+ /* byte swap descriptors in hardware */
+ {
+ u32 reg;
+
+ pci_read_config_dword(pdev, PCI_DEV_REG2, &reg);
+ reg |= PCI_REV_DESC;
+ pci_write_config_dword(pdev, PCI_DEV_REG2, reg);
+ }
+#endif
+
+ err = -ENOMEM;
+ /* space for skge@pci:0000:04:00.0 */
+ hw = kzalloc(sizeof(*hw) + strlen(DRV_NAME "@pci:")
+ + strlen(pci_name(pdev)) + 1, GFP_KERNEL);
+ if (!hw)
+ goto err_out_free_regions;
+
+ sprintf(hw->irq_name, DRV_NAME "@pci:%s", pci_name(pdev));
+
+ hw->pdev = pdev;
+ spin_lock_init(&hw->hw_lock);
+ spin_lock_init(&hw->phy_lock);
+ tasklet_init(&hw->phy_task, skge_extirq, (unsigned long) hw);
+
+ hw->regs = ioremap_nocache(pci_resource_start(pdev, 0), 0x4000);
+ if (!hw->regs) {
+ dev_err(&pdev->dev, "cannot map device registers\n");
+ goto err_out_free_hw;
+ }
+
+ err = skge_reset(hw);
+ if (err)
+ goto err_out_iounmap;
+
+ pr_info("%s addr 0x%llx irq %d chip %s rev %d\n",
+ DRV_VERSION,
+ (unsigned long long)pci_resource_start(pdev, 0), pdev->irq,
+ skge_board_name(hw), hw->chip_rev);
+
+ dev = skge_devinit(hw, 0, using_dac);
+ if (!dev) {
+ err = -ENOMEM;
+ goto err_out_led_off;
+ }
+
+ /* Some motherboards are broken and has zero in ROM. */
+ if (!is_valid_ether_addr(dev->dev_addr))
+ dev_warn(&pdev->dev, "bad (zero?) ethernet address in rom\n");
+
+ err = register_netdev(dev);
+ if (err) {
+ dev_err(&pdev->dev, "cannot register net device\n");
+ goto err_out_free_netdev;
+ }
+
+ skge_show_addr(dev);
+
+ if (hw->ports > 1) {
+ dev1 = skge_devinit(hw, 1, using_dac);
+ if (!dev1) {
+ err = -ENOMEM;
+ goto err_out_unregister;
+ }
+
+ err = register_netdev(dev1);
+ if (err) {
+ dev_err(&pdev->dev, "cannot register second net device\n");
+ goto err_out_free_dev1;
+ }
+
+ err = request_irq(pdev->irq, skge_intr, IRQF_SHARED,
+ hw->irq_name, hw);
+ if (err) {
+ dev_err(&pdev->dev, "cannot assign irq %d\n",
+ pdev->irq);
+ goto err_out_unregister_dev1;
+ }
+
+ skge_show_addr(dev1);
+ }
+ pci_set_drvdata(pdev, hw);
+
+ return 0;
+
+err_out_unregister_dev1:
+ unregister_netdev(dev1);
+err_out_free_dev1:
+ free_netdev(dev1);
+err_out_unregister:
+ unregister_netdev(dev);
+err_out_free_netdev:
+ free_netdev(dev);
+err_out_led_off:
+ skge_write16(hw, B0_LED, LED_STAT_OFF);
+err_out_iounmap:
+ iounmap(hw->regs);
+err_out_free_hw:
+ kfree(hw);
+err_out_free_regions:
+ pci_release_regions(pdev);
+err_out_disable_pdev:
+ pci_disable_device(pdev);
+err_out:
+ return err;
+}
+
+static void skge_remove(struct pci_dev *pdev)
+{
+ struct skge_hw *hw = pci_get_drvdata(pdev);
+ struct net_device *dev0, *dev1;
+
+ if (!hw)
+ return;
+
+ dev1 = hw->dev[1];
+ if (dev1)
+ unregister_netdev(dev1);
+ dev0 = hw->dev[0];
+ unregister_netdev(dev0);
+
+ tasklet_kill(&hw->phy_task);
+
+ spin_lock_irq(&hw->hw_lock);
+ hw->intr_mask = 0;
+
+ if (hw->ports > 1) {
+ skge_write32(hw, B0_IMSK, 0);
+ skge_read32(hw, B0_IMSK);
+ free_irq(pdev->irq, hw);
+ }
+ spin_unlock_irq(&hw->hw_lock);
+
+ skge_write16(hw, B0_LED, LED_STAT_OFF);
+ skge_write8(hw, B0_CTST, CS_RST_SET);
+
+ if (hw->ports > 1)
+ free_irq(pdev->irq, hw);
+ pci_release_regions(pdev);
+ pci_disable_device(pdev);
+ if (dev1)
+ free_netdev(dev1);
+ free_netdev(dev0);
+
+ iounmap(hw->regs);
+ kfree(hw);
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int skge_suspend(struct device *dev)
+{
+ struct pci_dev *pdev = to_pci_dev(dev);
+ struct skge_hw *hw = pci_get_drvdata(pdev);
+ int i;
+
+ if (!hw)
+ return 0;
+
+ for (i = 0; i < hw->ports; i++) {
+ struct net_device *dev = hw->dev[i];
+ struct skge_port *skge = netdev_priv(dev);
+
+ if (netif_running(dev))
+ skge_down(dev);
+
+ if (skge->wol)
+ skge_wol_init(skge);
+ }
+
+ skge_write32(hw, B0_IMSK, 0);
+
+ return 0;
+}
+
+static int skge_resume(struct device *dev)
+{
+ struct pci_dev *pdev = to_pci_dev(dev);
+ struct skge_hw *hw = pci_get_drvdata(pdev);
+ int i, err;
+
+ if (!hw)
+ return 0;
+
+ err = skge_reset(hw);
+ if (err)
+ goto out;
+
+ for (i = 0; i < hw->ports; i++) {
+ struct net_device *dev = hw->dev[i];
+
+ if (netif_running(dev)) {
+ err = skge_up(dev);
+
+ if (err) {
+ netdev_err(dev, "could not up: %d\n", err);
+ dev_close(dev);
+ goto out;
+ }
+ }
+ }
+out:
+ return err;
+}
+
+static SIMPLE_DEV_PM_OPS(skge_pm_ops, skge_suspend, skge_resume);
+#define SKGE_PM_OPS (&skge_pm_ops)
+
+#else
+
+#define SKGE_PM_OPS NULL
+#endif /* CONFIG_PM_SLEEP */
+
+static void skge_shutdown(struct pci_dev *pdev)
+{
+ struct skge_hw *hw = pci_get_drvdata(pdev);
+ int i;
+
+ if (!hw)
+ return;
+
+ for (i = 0; i < hw->ports; i++) {
+ struct net_device *dev = hw->dev[i];
+ struct skge_port *skge = netdev_priv(dev);
+
+ if (skge->wol)
+ skge_wol_init(skge);
+ }
+
+ pci_wake_from_d3(pdev, device_may_wakeup(&pdev->dev));
+ pci_set_power_state(pdev, PCI_D3hot);
+}
+
+static struct pci_driver skge_driver = {
+ .name = DRV_NAME,
+ .id_table = skge_id_table,
+ .probe = skge_probe,
+ .remove = skge_remove,
+ .shutdown = skge_shutdown,
+ .driver.pm = SKGE_PM_OPS,
+};
+
+static struct dmi_system_id skge_32bit_dma_boards[] = {
+ {
+ .ident = "Gigabyte nForce boards",
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "Gigabyte Technology Co"),
+ DMI_MATCH(DMI_BOARD_NAME, "nForce"),
+ },
+ },
+ {
+ .ident = "ASUS P5NSLI",
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."),
+ DMI_MATCH(DMI_BOARD_NAME, "P5NSLI")
+ },
+ },
+ {
+ .ident = "FUJITSU SIEMENS A8NE-FM",
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTek Computer INC."),
+ DMI_MATCH(DMI_BOARD_NAME, "A8NE-FM")
+ },
+ },
+ {}
+};
+
+static int __init skge_init_module(void)
+{
+ if (dmi_check_system(skge_32bit_dma_boards))
+ only_32bit_dma = 1;
+ skge_debug_init();
+ return pci_register_driver(&skge_driver);
+}
+
+static void __exit skge_cleanup_module(void)
+{
+ pci_unregister_driver(&skge_driver);
+ skge_debug_cleanup();
+}
+
+module_init(skge_init_module);
+module_exit(skge_cleanup_module);
diff --git a/drivers/net/ethernet/marvell/skge.h b/drivers/net/ethernet/marvell/skge.h
new file mode 100644
index 000000000..a2eb34115
--- /dev/null
+++ b/drivers/net/ethernet/marvell/skge.h
@@ -0,0 +1,2584 @@
+/*
+ * Definitions for the new Marvell Yukon / SysKonnect driver.
+ */
+#ifndef _SKGE_H
+#define _SKGE_H
+#include <linux/interrupt.h>
+
+/* PCI config registers */
+#define PCI_DEV_REG1 0x40
+#define PCI_PHY_COMA 0x8000000
+#define PCI_VIO 0x2000000
+
+#define PCI_DEV_REG2 0x44
+#define PCI_VPD_ROM_SZ 7L<<14 /* VPD ROM size 0=256, 1=512, ... */
+#define PCI_REV_DESC 1<<2 /* Reverse Descriptor bytes */
+
+#define PCI_STATUS_ERROR_BITS (PCI_STATUS_DETECTED_PARITY | \
+ PCI_STATUS_SIG_SYSTEM_ERROR | \
+ PCI_STATUS_REC_MASTER_ABORT | \
+ PCI_STATUS_REC_TARGET_ABORT | \
+ PCI_STATUS_PARITY)
+
+enum csr_regs {
+ B0_RAP = 0x0000,
+ B0_CTST = 0x0004,
+ B0_LED = 0x0006,
+ B0_POWER_CTRL = 0x0007,
+ B0_ISRC = 0x0008,
+ B0_IMSK = 0x000c,
+ B0_HWE_ISRC = 0x0010,
+ B0_HWE_IMSK = 0x0014,
+ B0_SP_ISRC = 0x0018,
+ B0_XM1_IMSK = 0x0020,
+ B0_XM1_ISRC = 0x0028,
+ B0_XM1_PHY_ADDR = 0x0030,
+ B0_XM1_PHY_DATA = 0x0034,
+ B0_XM2_IMSK = 0x0040,
+ B0_XM2_ISRC = 0x0048,
+ B0_XM2_PHY_ADDR = 0x0050,
+ B0_XM2_PHY_DATA = 0x0054,
+ B0_R1_CSR = 0x0060,
+ B0_R2_CSR = 0x0064,
+ B0_XS1_CSR = 0x0068,
+ B0_XA1_CSR = 0x006c,
+ B0_XS2_CSR = 0x0070,
+ B0_XA2_CSR = 0x0074,
+
+ B2_MAC_1 = 0x0100,
+ B2_MAC_2 = 0x0108,
+ B2_MAC_3 = 0x0110,
+ B2_CONN_TYP = 0x0118,
+ B2_PMD_TYP = 0x0119,
+ B2_MAC_CFG = 0x011a,
+ B2_CHIP_ID = 0x011b,
+ B2_E_0 = 0x011c,
+ B2_E_1 = 0x011d,
+ B2_E_2 = 0x011e,
+ B2_E_3 = 0x011f,
+ B2_FAR = 0x0120,
+ B2_FDP = 0x0124,
+ B2_LD_CTRL = 0x0128,
+ B2_LD_TEST = 0x0129,
+ B2_TI_INI = 0x0130,
+ B2_TI_VAL = 0x0134,
+ B2_TI_CTRL = 0x0138,
+ B2_TI_TEST = 0x0139,
+ B2_IRQM_INI = 0x0140,
+ B2_IRQM_VAL = 0x0144,
+ B2_IRQM_CTRL = 0x0148,
+ B2_IRQM_TEST = 0x0149,
+ B2_IRQM_MSK = 0x014c,
+ B2_IRQM_HWE_MSK = 0x0150,
+ B2_TST_CTRL1 = 0x0158,
+ B2_TST_CTRL2 = 0x0159,
+ B2_GP_IO = 0x015c,
+ B2_I2C_CTRL = 0x0160,
+ B2_I2C_DATA = 0x0164,
+ B2_I2C_IRQ = 0x0168,
+ B2_I2C_SW = 0x016c,
+ B2_BSC_INI = 0x0170,
+ B2_BSC_VAL = 0x0174,
+ B2_BSC_CTRL = 0x0178,
+ B2_BSC_STAT = 0x0179,
+ B2_BSC_TST = 0x017a,
+
+ B3_RAM_ADDR = 0x0180,
+ B3_RAM_DATA_LO = 0x0184,
+ B3_RAM_DATA_HI = 0x0188,
+ B3_RI_WTO_R1 = 0x0190,
+ B3_RI_WTO_XA1 = 0x0191,
+ B3_RI_WTO_XS1 = 0x0192,
+ B3_RI_RTO_R1 = 0x0193,
+ B3_RI_RTO_XA1 = 0x0194,
+ B3_RI_RTO_XS1 = 0x0195,
+ B3_RI_WTO_R2 = 0x0196,
+ B3_RI_WTO_XA2 = 0x0197,
+ B3_RI_WTO_XS2 = 0x0198,
+ B3_RI_RTO_R2 = 0x0199,
+ B3_RI_RTO_XA2 = 0x019a,
+ B3_RI_RTO_XS2 = 0x019b,
+ B3_RI_TO_VAL = 0x019c,
+ B3_RI_CTRL = 0x01a0,
+ B3_RI_TEST = 0x01a2,
+ B3_MA_TOINI_RX1 = 0x01b0,
+ B3_MA_TOINI_RX2 = 0x01b1,
+ B3_MA_TOINI_TX1 = 0x01b2,
+ B3_MA_TOINI_TX2 = 0x01b3,
+ B3_MA_TOVAL_RX1 = 0x01b4,
+ B3_MA_TOVAL_RX2 = 0x01b5,
+ B3_MA_TOVAL_TX1 = 0x01b6,
+ B3_MA_TOVAL_TX2 = 0x01b7,
+ B3_MA_TO_CTRL = 0x01b8,
+ B3_MA_TO_TEST = 0x01ba,
+ B3_MA_RCINI_RX1 = 0x01c0,
+ B3_MA_RCINI_RX2 = 0x01c1,
+ B3_MA_RCINI_TX1 = 0x01c2,
+ B3_MA_RCINI_TX2 = 0x01c3,
+ B3_MA_RCVAL_RX1 = 0x01c4,
+ B3_MA_RCVAL_RX2 = 0x01c5,
+ B3_MA_RCVAL_TX1 = 0x01c6,
+ B3_MA_RCVAL_TX2 = 0x01c7,
+ B3_MA_RC_CTRL = 0x01c8,
+ B3_MA_RC_TEST = 0x01ca,
+ B3_PA_TOINI_RX1 = 0x01d0,
+ B3_PA_TOINI_RX2 = 0x01d4,
+ B3_PA_TOINI_TX1 = 0x01d8,
+ B3_PA_TOINI_TX2 = 0x01dc,
+ B3_PA_TOVAL_RX1 = 0x01e0,
+ B3_PA_TOVAL_RX2 = 0x01e4,
+ B3_PA_TOVAL_TX1 = 0x01e8,
+ B3_PA_TOVAL_TX2 = 0x01ec,
+ B3_PA_CTRL = 0x01f0,
+ B3_PA_TEST = 0x01f2,
+};
+
+/* B0_CTST 16 bit Control/Status register */
+enum {
+ CS_CLK_RUN_HOT = 1<<13,/* CLK_RUN hot m. (YUKON-Lite only) */
+ CS_CLK_RUN_RST = 1<<12,/* CLK_RUN reset (YUKON-Lite only) */
+ CS_CLK_RUN_ENA = 1<<11,/* CLK_RUN enable (YUKON-Lite only) */
+ CS_VAUX_AVAIL = 1<<10,/* VAUX available (YUKON only) */
+ CS_BUS_CLOCK = 1<<9, /* Bus Clock 0/1 = 33/66 MHz */
+ CS_BUS_SLOT_SZ = 1<<8, /* Slot Size 0/1 = 32/64 bit slot */
+ CS_ST_SW_IRQ = 1<<7, /* Set IRQ SW Request */
+ CS_CL_SW_IRQ = 1<<6, /* Clear IRQ SW Request */
+ CS_STOP_DONE = 1<<5, /* Stop Master is finished */
+ CS_STOP_MAST = 1<<4, /* Command Bit to stop the master */
+ CS_MRST_CLR = 1<<3, /* Clear Master reset */
+ CS_MRST_SET = 1<<2, /* Set Master reset */
+ CS_RST_CLR = 1<<1, /* Clear Software reset */
+ CS_RST_SET = 1, /* Set Software reset */
+
+/* B0_LED 8 Bit LED register */
+/* Bit 7.. 2: reserved */
+ LED_STAT_ON = 1<<1, /* Status LED on */
+ LED_STAT_OFF = 1, /* Status LED off */
+
+/* B0_POWER_CTRL 8 Bit Power Control reg (YUKON only) */
+ PC_VAUX_ENA = 1<<7, /* Switch VAUX Enable */
+ PC_VAUX_DIS = 1<<6, /* Switch VAUX Disable */
+ PC_VCC_ENA = 1<<5, /* Switch VCC Enable */
+ PC_VCC_DIS = 1<<4, /* Switch VCC Disable */
+ PC_VAUX_ON = 1<<3, /* Switch VAUX On */
+ PC_VAUX_OFF = 1<<2, /* Switch VAUX Off */
+ PC_VCC_ON = 1<<1, /* Switch VCC On */
+ PC_VCC_OFF = 1<<0, /* Switch VCC Off */
+};
+
+/* B2_IRQM_MSK 32 bit IRQ Moderation Mask */
+enum {
+ IS_ALL_MSK = 0xbffffffful, /* All Interrupt bits */
+ IS_HW_ERR = 1<<31, /* Interrupt HW Error */
+ /* Bit 30: reserved */
+ IS_PA_TO_RX1 = 1<<29, /* Packet Arb Timeout Rx1 */
+ IS_PA_TO_RX2 = 1<<28, /* Packet Arb Timeout Rx2 */
+ IS_PA_TO_TX1 = 1<<27, /* Packet Arb Timeout Tx1 */
+ IS_PA_TO_TX2 = 1<<26, /* Packet Arb Timeout Tx2 */
+ IS_I2C_READY = 1<<25, /* IRQ on end of I2C Tx */
+ IS_IRQ_SW = 1<<24, /* SW forced IRQ */
+ IS_EXT_REG = 1<<23, /* IRQ from LM80 or PHY (GENESIS only) */
+ /* IRQ from PHY (YUKON only) */
+ IS_TIMINT = 1<<22, /* IRQ from Timer */
+ IS_MAC1 = 1<<21, /* IRQ from MAC 1 */
+ IS_LNK_SYNC_M1 = 1<<20, /* Link Sync Cnt wrap MAC 1 */
+ IS_MAC2 = 1<<19, /* IRQ from MAC 2 */
+ IS_LNK_SYNC_M2 = 1<<18, /* Link Sync Cnt wrap MAC 2 */
+/* Receive Queue 1 */
+ IS_R1_B = 1<<17, /* Q_R1 End of Buffer */
+ IS_R1_F = 1<<16, /* Q_R1 End of Frame */
+ IS_R1_C = 1<<15, /* Q_R1 Encoding Error */
+/* Receive Queue 2 */
+ IS_R2_B = 1<<14, /* Q_R2 End of Buffer */
+ IS_R2_F = 1<<13, /* Q_R2 End of Frame */
+ IS_R2_C = 1<<12, /* Q_R2 Encoding Error */
+/* Synchronous Transmit Queue 1 */
+ IS_XS1_B = 1<<11, /* Q_XS1 End of Buffer */
+ IS_XS1_F = 1<<10, /* Q_XS1 End of Frame */
+ IS_XS1_C = 1<<9, /* Q_XS1 Encoding Error */
+/* Asynchronous Transmit Queue 1 */
+ IS_XA1_B = 1<<8, /* Q_XA1 End of Buffer */
+ IS_XA1_F = 1<<7, /* Q_XA1 End of Frame */
+ IS_XA1_C = 1<<6, /* Q_XA1 Encoding Error */
+/* Synchronous Transmit Queue 2 */
+ IS_XS2_B = 1<<5, /* Q_XS2 End of Buffer */
+ IS_XS2_F = 1<<4, /* Q_XS2 End of Frame */
+ IS_XS2_C = 1<<3, /* Q_XS2 Encoding Error */
+/* Asynchronous Transmit Queue 2 */
+ IS_XA2_B = 1<<2, /* Q_XA2 End of Buffer */
+ IS_XA2_F = 1<<1, /* Q_XA2 End of Frame */
+ IS_XA2_C = 1<<0, /* Q_XA2 Encoding Error */
+
+ IS_TO_PORT1 = IS_PA_TO_RX1 | IS_PA_TO_TX1,
+ IS_TO_PORT2 = IS_PA_TO_RX2 | IS_PA_TO_TX2,
+
+ IS_PORT_1 = IS_XA1_F| IS_R1_F | IS_TO_PORT1 | IS_MAC1,
+ IS_PORT_2 = IS_XA2_F| IS_R2_F | IS_TO_PORT2 | IS_MAC2,
+};
+
+
+/* B2_IRQM_HWE_MSK 32 bit IRQ Moderation HW Error Mask */
+enum {
+ IS_IRQ_TIST_OV = 1<<13, /* Time Stamp Timer Overflow (YUKON only) */
+ IS_IRQ_SENSOR = 1<<12, /* IRQ from Sensor (YUKON only) */
+ IS_IRQ_MST_ERR = 1<<11, /* IRQ master error detected */
+ IS_IRQ_STAT = 1<<10, /* IRQ status exception */
+ IS_NO_STAT_M1 = 1<<9, /* No Rx Status from MAC 1 */
+ IS_NO_STAT_M2 = 1<<8, /* No Rx Status from MAC 2 */
+ IS_NO_TIST_M1 = 1<<7, /* No Time Stamp from MAC 1 */
+ IS_NO_TIST_M2 = 1<<6, /* No Time Stamp from MAC 2 */
+ IS_RAM_RD_PAR = 1<<5, /* RAM Read Parity Error */
+ IS_RAM_WR_PAR = 1<<4, /* RAM Write Parity Error */
+ IS_M1_PAR_ERR = 1<<3, /* MAC 1 Parity Error */
+ IS_M2_PAR_ERR = 1<<2, /* MAC 2 Parity Error */
+ IS_R1_PAR_ERR = 1<<1, /* Queue R1 Parity Error */
+ IS_R2_PAR_ERR = 1<<0, /* Queue R2 Parity Error */
+
+ IS_ERR_MSK = IS_IRQ_MST_ERR | IS_IRQ_STAT
+ | IS_RAM_RD_PAR | IS_RAM_WR_PAR
+ | IS_M1_PAR_ERR | IS_M2_PAR_ERR
+ | IS_R1_PAR_ERR | IS_R2_PAR_ERR,
+};
+
+/* B2_TST_CTRL1 8 bit Test Control Register 1 */
+enum {
+ TST_FRC_DPERR_MR = 1<<7, /* force DATAPERR on MST RD */
+ TST_FRC_DPERR_MW = 1<<6, /* force DATAPERR on MST WR */
+ TST_FRC_DPERR_TR = 1<<5, /* force DATAPERR on TRG RD */
+ TST_FRC_DPERR_TW = 1<<4, /* force DATAPERR on TRG WR */
+ TST_FRC_APERR_M = 1<<3, /* force ADDRPERR on MST */
+ TST_FRC_APERR_T = 1<<2, /* force ADDRPERR on TRG */
+ TST_CFG_WRITE_ON = 1<<1, /* Enable Config Reg WR */
+ TST_CFG_WRITE_OFF= 1<<0, /* Disable Config Reg WR */
+};
+
+/* B2_MAC_CFG 8 bit MAC Configuration / Chip Revision */
+enum {
+ CFG_CHIP_R_MSK = 0xf<<4, /* Bit 7.. 4: Chip Revision */
+ /* Bit 3.. 2: reserved */
+ CFG_DIS_M2_CLK = 1<<1, /* Disable Clock for 2nd MAC */
+ CFG_SNG_MAC = 1<<0, /* MAC Config: 0=2 MACs / 1=1 MAC*/
+};
+
+/* B2_CHIP_ID 8 bit Chip Identification Number */
+enum {
+ CHIP_ID_GENESIS = 0x0a, /* Chip ID for GENESIS */
+ CHIP_ID_YUKON = 0xb0, /* Chip ID for YUKON */
+ CHIP_ID_YUKON_LITE = 0xb1, /* Chip ID for YUKON-Lite (Rev. A1-A3) */
+ CHIP_ID_YUKON_LP = 0xb2, /* Chip ID for YUKON-LP */
+ CHIP_ID_YUKON_XL = 0xb3, /* Chip ID for YUKON-2 XL */
+ CHIP_ID_YUKON_EC = 0xb6, /* Chip ID for YUKON-2 EC */
+ CHIP_ID_YUKON_FE = 0xb7, /* Chip ID for YUKON-2 FE */
+
+ CHIP_REV_YU_LITE_A1 = 3, /* Chip Rev. for YUKON-Lite A1,A2 */
+ CHIP_REV_YU_LITE_A3 = 7, /* Chip Rev. for YUKON-Lite A3 */
+};
+
+/* B2_TI_CTRL 8 bit Timer control */
+/* B2_IRQM_CTRL 8 bit IRQ Moderation Timer Control */
+enum {
+ TIM_START = 1<<2, /* Start Timer */
+ TIM_STOP = 1<<1, /* Stop Timer */
+ TIM_CLR_IRQ = 1<<0, /* Clear Timer IRQ (!IRQM) */
+};
+
+/* B2_TI_TEST 8 Bit Timer Test */
+/* B2_IRQM_TEST 8 bit IRQ Moderation Timer Test */
+/* B28_DPT_TST 8 bit Descriptor Poll Timer Test Reg */
+enum {
+ TIM_T_ON = 1<<2, /* Test mode on */
+ TIM_T_OFF = 1<<1, /* Test mode off */
+ TIM_T_STEP = 1<<0, /* Test step */
+};
+
+/* B2_GP_IO 32 bit General Purpose I/O Register */
+enum {
+ GP_DIR_9 = 1<<25, /* IO_9 direct, 0=In/1=Out */
+ GP_DIR_8 = 1<<24, /* IO_8 direct, 0=In/1=Out */
+ GP_DIR_7 = 1<<23, /* IO_7 direct, 0=In/1=Out */
+ GP_DIR_6 = 1<<22, /* IO_6 direct, 0=In/1=Out */
+ GP_DIR_5 = 1<<21, /* IO_5 direct, 0=In/1=Out */
+ GP_DIR_4 = 1<<20, /* IO_4 direct, 0=In/1=Out */
+ GP_DIR_3 = 1<<19, /* IO_3 direct, 0=In/1=Out */
+ GP_DIR_2 = 1<<18, /* IO_2 direct, 0=In/1=Out */
+ GP_DIR_1 = 1<<17, /* IO_1 direct, 0=In/1=Out */
+ GP_DIR_0 = 1<<16, /* IO_0 direct, 0=In/1=Out */
+
+ GP_IO_9 = 1<<9, /* IO_9 pin */
+ GP_IO_8 = 1<<8, /* IO_8 pin */
+ GP_IO_7 = 1<<7, /* IO_7 pin */
+ GP_IO_6 = 1<<6, /* IO_6 pin */
+ GP_IO_5 = 1<<5, /* IO_5 pin */
+ GP_IO_4 = 1<<4, /* IO_4 pin */
+ GP_IO_3 = 1<<3, /* IO_3 pin */
+ GP_IO_2 = 1<<2, /* IO_2 pin */
+ GP_IO_1 = 1<<1, /* IO_1 pin */
+ GP_IO_0 = 1<<0, /* IO_0 pin */
+};
+
+/* Descriptor Bit Definition */
+/* TxCtrl Transmit Buffer Control Field */
+/* RxCtrl Receive Buffer Control Field */
+enum {
+ BMU_OWN = 1<<31, /* OWN bit: 0=host/1=BMU */
+ BMU_STF = 1<<30, /* Start of Frame */
+ BMU_EOF = 1<<29, /* End of Frame */
+ BMU_IRQ_EOB = 1<<28, /* Req "End of Buffer" IRQ */
+ BMU_IRQ_EOF = 1<<27, /* Req "End of Frame" IRQ */
+ /* TxCtrl specific bits */
+ BMU_STFWD = 1<<26, /* (Tx) Store & Forward Frame */
+ BMU_NO_FCS = 1<<25, /* (Tx) Disable MAC FCS (CRC) generation */
+ BMU_SW = 1<<24, /* (Tx) 1 bit res. for SW use */
+ /* RxCtrl specific bits */
+ BMU_DEV_0 = 1<<26, /* (Rx) Transfer data to Dev0 */
+ BMU_STAT_VAL = 1<<25, /* (Rx) Rx Status Valid */
+ BMU_TIST_VAL = 1<<24, /* (Rx) Rx TimeStamp Valid */
+ /* Bit 23..16: BMU Check Opcodes */
+ BMU_CHECK = 0x55<<16, /* Default BMU check */
+ BMU_TCP_CHECK = 0x56<<16, /* Descr with TCP ext */
+ BMU_UDP_CHECK = 0x57<<16, /* Descr with UDP ext (YUKON only) */
+ BMU_BBC = 0xffffL, /* Bit 15.. 0: Buffer Byte Counter */
+};
+
+/* B2_BSC_CTRL 8 bit Blink Source Counter Control */
+enum {
+ BSC_START = 1<<1, /* Start Blink Source Counter */
+ BSC_STOP = 1<<0, /* Stop Blink Source Counter */
+};
+
+/* B2_BSC_STAT 8 bit Blink Source Counter Status */
+enum {
+ BSC_SRC = 1<<0, /* Blink Source, 0=Off / 1=On */
+};
+
+/* B2_BSC_TST 16 bit Blink Source Counter Test Reg */
+enum {
+ BSC_T_ON = 1<<2, /* Test mode on */
+ BSC_T_OFF = 1<<1, /* Test mode off */
+ BSC_T_STEP = 1<<0, /* Test step */
+};
+
+/* B3_RAM_ADDR 32 bit RAM Address, to read or write */
+ /* Bit 31..19: reserved */
+#define RAM_ADR_RAN 0x0007ffffL /* Bit 18.. 0: RAM Address Range */
+/* RAM Interface Registers */
+
+/* B3_RI_CTRL 16 bit RAM Iface Control Register */
+enum {
+ RI_CLR_RD_PERR = 1<<9, /* Clear IRQ RAM Read Parity Err */
+ RI_CLR_WR_PERR = 1<<8, /* Clear IRQ RAM Write Parity Err*/
+
+ RI_RST_CLR = 1<<1, /* Clear RAM Interface Reset */
+ RI_RST_SET = 1<<0, /* Set RAM Interface Reset */
+};
+
+/* MAC Arbiter Registers */
+/* B3_MA_TO_CTRL 16 bit MAC Arbiter Timeout Ctrl Reg */
+enum {
+ MA_FOE_ON = 1<<3, /* XMAC Fast Output Enable ON */
+ MA_FOE_OFF = 1<<2, /* XMAC Fast Output Enable OFF */
+ MA_RST_CLR = 1<<1, /* Clear MAC Arbiter Reset */
+ MA_RST_SET = 1<<0, /* Set MAC Arbiter Reset */
+
+};
+
+/* Timeout values */
+#define SK_MAC_TO_53 72 /* MAC arbiter timeout */
+#define SK_PKT_TO_53 0x2000 /* Packet arbiter timeout */
+#define SK_PKT_TO_MAX 0xffff /* Maximum value */
+#define SK_RI_TO_53 36 /* RAM interface timeout */
+
+/* Packet Arbiter Registers */
+/* B3_PA_CTRL 16 bit Packet Arbiter Ctrl Register */
+enum {
+ PA_CLR_TO_TX2 = 1<<13,/* Clear IRQ Packet Timeout TX2 */
+ PA_CLR_TO_TX1 = 1<<12,/* Clear IRQ Packet Timeout TX1 */
+ PA_CLR_TO_RX2 = 1<<11,/* Clear IRQ Packet Timeout RX2 */
+ PA_CLR_TO_RX1 = 1<<10,/* Clear IRQ Packet Timeout RX1 */
+ PA_ENA_TO_TX2 = 1<<9, /* Enable Timeout Timer TX2 */
+ PA_DIS_TO_TX2 = 1<<8, /* Disable Timeout Timer TX2 */
+ PA_ENA_TO_TX1 = 1<<7, /* Enable Timeout Timer TX1 */
+ PA_DIS_TO_TX1 = 1<<6, /* Disable Timeout Timer TX1 */
+ PA_ENA_TO_RX2 = 1<<5, /* Enable Timeout Timer RX2 */
+ PA_DIS_TO_RX2 = 1<<4, /* Disable Timeout Timer RX2 */
+ PA_ENA_TO_RX1 = 1<<3, /* Enable Timeout Timer RX1 */
+ PA_DIS_TO_RX1 = 1<<2, /* Disable Timeout Timer RX1 */
+ PA_RST_CLR = 1<<1, /* Clear MAC Arbiter Reset */
+ PA_RST_SET = 1<<0, /* Set MAC Arbiter Reset */
+};
+
+#define PA_ENA_TO_ALL (PA_ENA_TO_RX1 | PA_ENA_TO_RX2 |\
+ PA_ENA_TO_TX1 | PA_ENA_TO_TX2)
+
+
+/* Transmit Arbiter Registers MAC 1 and 2, use SK_REG() to access */
+/* TXA_ITI_INI 32 bit Tx Arb Interval Timer Init Val */
+/* TXA_ITI_VAL 32 bit Tx Arb Interval Timer Value */
+/* TXA_LIM_INI 32 bit Tx Arb Limit Counter Init Val */
+/* TXA_LIM_VAL 32 bit Tx Arb Limit Counter Value */
+
+#define TXA_MAX_VAL 0x00ffffffUL /* Bit 23.. 0: Max TXA Timer/Cnt Val */
+
+/* TXA_CTRL 8 bit Tx Arbiter Control Register */
+enum {
+ TXA_ENA_FSYNC = 1<<7, /* Enable force of sync Tx queue */
+ TXA_DIS_FSYNC = 1<<6, /* Disable force of sync Tx queue */
+ TXA_ENA_ALLOC = 1<<5, /* Enable alloc of free bandwidth */
+ TXA_DIS_ALLOC = 1<<4, /* Disable alloc of free bandwidth */
+ TXA_START_RC = 1<<3, /* Start sync Rate Control */
+ TXA_STOP_RC = 1<<2, /* Stop sync Rate Control */
+ TXA_ENA_ARB = 1<<1, /* Enable Tx Arbiter */
+ TXA_DIS_ARB = 1<<0, /* Disable Tx Arbiter */
+};
+
+/*
+ * Bank 4 - 5
+ */
+/* Transmit Arbiter Registers MAC 1 and 2, use SK_REG() to access */
+enum {
+ TXA_ITI_INI = 0x0200,/* 32 bit Tx Arb Interval Timer Init Val*/
+ TXA_ITI_VAL = 0x0204,/* 32 bit Tx Arb Interval Timer Value */
+ TXA_LIM_INI = 0x0208,/* 32 bit Tx Arb Limit Counter Init Val */
+ TXA_LIM_VAL = 0x020c,/* 32 bit Tx Arb Limit Counter Value */
+ TXA_CTRL = 0x0210,/* 8 bit Tx Arbiter Control Register */
+ TXA_TEST = 0x0211,/* 8 bit Tx Arbiter Test Register */
+ TXA_STAT = 0x0212,/* 8 bit Tx Arbiter Status Register */
+};
+
+
+enum {
+ B6_EXT_REG = 0x0300,/* External registers (GENESIS only) */
+ B7_CFG_SPC = 0x0380,/* copy of the Configuration register */
+ B8_RQ1_REGS = 0x0400,/* Receive Queue 1 */
+ B8_RQ2_REGS = 0x0480,/* Receive Queue 2 */
+ B8_TS1_REGS = 0x0600,/* Transmit sync queue 1 */
+ B8_TA1_REGS = 0x0680,/* Transmit async queue 1 */
+ B8_TS2_REGS = 0x0700,/* Transmit sync queue 2 */
+ B8_TA2_REGS = 0x0780,/* Transmit sync queue 2 */
+ B16_RAM_REGS = 0x0800,/* RAM Buffer Registers */
+};
+
+/* Queue Register Offsets, use Q_ADDR() to access */
+enum {
+ B8_Q_REGS = 0x0400, /* base of Queue registers */
+ Q_D = 0x00, /* 8*32 bit Current Descriptor */
+ Q_DA_L = 0x20, /* 32 bit Current Descriptor Address Low dWord */
+ Q_DA_H = 0x24, /* 32 bit Current Descriptor Address High dWord */
+ Q_AC_L = 0x28, /* 32 bit Current Address Counter Low dWord */
+ Q_AC_H = 0x2c, /* 32 bit Current Address Counter High dWord */
+ Q_BC = 0x30, /* 32 bit Current Byte Counter */
+ Q_CSR = 0x34, /* 32 bit BMU Control/Status Register */
+ Q_F = 0x38, /* 32 bit Flag Register */
+ Q_T1 = 0x3c, /* 32 bit Test Register 1 */
+ Q_T1_TR = 0x3c, /* 8 bit Test Register 1 Transfer SM */
+ Q_T1_WR = 0x3d, /* 8 bit Test Register 1 Write Descriptor SM */
+ Q_T1_RD = 0x3e, /* 8 bit Test Register 1 Read Descriptor SM */
+ Q_T1_SV = 0x3f, /* 8 bit Test Register 1 Supervisor SM */
+ Q_T2 = 0x40, /* 32 bit Test Register 2 */
+ Q_T3 = 0x44, /* 32 bit Test Register 3 */
+
+};
+#define Q_ADDR(reg, offs) (B8_Q_REGS + (reg) + (offs))
+
+/* RAM Buffer Register Offsets */
+enum {
+
+ RB_START= 0x00,/* 32 bit RAM Buffer Start Address */
+ RB_END = 0x04,/* 32 bit RAM Buffer End Address */
+ RB_WP = 0x08,/* 32 bit RAM Buffer Write Pointer */
+ RB_RP = 0x0c,/* 32 bit RAM Buffer Read Pointer */
+ RB_RX_UTPP= 0x10,/* 32 bit Rx Upper Threshold, Pause Packet */
+ RB_RX_LTPP= 0x14,/* 32 bit Rx Lower Threshold, Pause Packet */
+ RB_RX_UTHP= 0x18,/* 32 bit Rx Upper Threshold, High Prio */
+ RB_RX_LTHP= 0x1c,/* 32 bit Rx Lower Threshold, High Prio */
+ /* 0x10 - 0x1f: reserved at Tx RAM Buffer Registers */
+ RB_PC = 0x20,/* 32 bit RAM Buffer Packet Counter */
+ RB_LEV = 0x24,/* 32 bit RAM Buffer Level Register */
+ RB_CTRL = 0x28,/* 32 bit RAM Buffer Control Register */
+ RB_TST1 = 0x29,/* 8 bit RAM Buffer Test Register 1 */
+ RB_TST2 = 0x2a,/* 8 bit RAM Buffer Test Register 2 */
+};
+
+/* Receive and Transmit Queues */
+enum {
+ Q_R1 = 0x0000, /* Receive Queue 1 */
+ Q_R2 = 0x0080, /* Receive Queue 2 */
+ Q_XS1 = 0x0200, /* Synchronous Transmit Queue 1 */
+ Q_XA1 = 0x0280, /* Asynchronous Transmit Queue 1 */
+ Q_XS2 = 0x0300, /* Synchronous Transmit Queue 2 */
+ Q_XA2 = 0x0380, /* Asynchronous Transmit Queue 2 */
+};
+
+/* Different MAC Types */
+enum {
+ SK_MAC_XMAC = 0, /* Xaqti XMAC II */
+ SK_MAC_GMAC = 1, /* Marvell GMAC */
+};
+
+/* Different PHY Types */
+enum {
+ SK_PHY_XMAC = 0,/* integrated in XMAC II */
+ SK_PHY_BCOM = 1,/* Broadcom BCM5400 */
+ SK_PHY_LONE = 2,/* Level One LXT1000 [not supported]*/
+ SK_PHY_NAT = 3,/* National DP83891 [not supported] */
+ SK_PHY_MARV_COPPER= 4,/* Marvell 88E1011S */
+ SK_PHY_MARV_FIBER = 5,/* Marvell 88E1011S working on fiber */
+};
+
+/* PHY addresses (bits 12..8 of PHY address reg) */
+enum {
+ PHY_ADDR_XMAC = 0<<8,
+ PHY_ADDR_BCOM = 1<<8,
+
+/* GPHY address (bits 15..11 of SMI control reg) */
+ PHY_ADDR_MARV = 0,
+};
+
+#define RB_ADDR(offs, queue) ((u16)B16_RAM_REGS + (u16)(queue) + (offs))
+
+/* Receive MAC FIFO, Receive LED, and Link_Sync regs (GENESIS only) */
+enum {
+ RX_MFF_EA = 0x0c00,/* 32 bit Receive MAC FIFO End Address */
+ RX_MFF_WP = 0x0c04,/* 32 bit Receive MAC FIFO Write Pointer */
+
+ RX_MFF_RP = 0x0c0c,/* 32 bit Receive MAC FIFO Read Pointer */
+ RX_MFF_PC = 0x0c10,/* 32 bit Receive MAC FIFO Packet Cnt */
+ RX_MFF_LEV = 0x0c14,/* 32 bit Receive MAC FIFO Level */
+ RX_MFF_CTRL1 = 0x0c18,/* 16 bit Receive MAC FIFO Control Reg 1*/
+ RX_MFF_STAT_TO = 0x0c1a,/* 8 bit Receive MAC Status Timeout */
+ RX_MFF_TIST_TO = 0x0c1b,/* 8 bit Receive MAC Time Stamp Timeout */
+ RX_MFF_CTRL2 = 0x0c1c,/* 8 bit Receive MAC FIFO Control Reg 2*/
+ RX_MFF_TST1 = 0x0c1d,/* 8 bit Receive MAC FIFO Test Reg 1 */
+ RX_MFF_TST2 = 0x0c1e,/* 8 bit Receive MAC FIFO Test Reg 2 */
+
+ RX_LED_INI = 0x0c20,/* 32 bit Receive LED Cnt Init Value */
+ RX_LED_VAL = 0x0c24,/* 32 bit Receive LED Cnt Current Value */
+ RX_LED_CTRL = 0x0c28,/* 8 bit Receive LED Cnt Control Reg */
+ RX_LED_TST = 0x0c29,/* 8 bit Receive LED Cnt Test Register */
+
+ LNK_SYNC_INI = 0x0c30,/* 32 bit Link Sync Cnt Init Value */
+ LNK_SYNC_VAL = 0x0c34,/* 32 bit Link Sync Cnt Current Value */
+ LNK_SYNC_CTRL = 0x0c38,/* 8 bit Link Sync Cnt Control Register */
+ LNK_SYNC_TST = 0x0c39,/* 8 bit Link Sync Cnt Test Register */
+ LNK_LED_REG = 0x0c3c,/* 8 bit Link LED Register */
+};
+
+/* Receive and Transmit MAC FIFO Registers (GENESIS only) */
+/* RX_MFF_CTRL1 16 bit Receive MAC FIFO Control Reg 1 */
+enum {
+ MFF_ENA_RDY_PAT = 1<<13, /* Enable Ready Patch */
+ MFF_DIS_RDY_PAT = 1<<12, /* Disable Ready Patch */
+ MFF_ENA_TIM_PAT = 1<<11, /* Enable Timing Patch */
+ MFF_DIS_TIM_PAT = 1<<10, /* Disable Timing Patch */
+ MFF_ENA_ALM_FUL = 1<<9, /* Enable AlmostFull Sign */
+ MFF_DIS_ALM_FUL = 1<<8, /* Disable AlmostFull Sign */
+ MFF_ENA_PAUSE = 1<<7, /* Enable Pause Signaling */
+ MFF_DIS_PAUSE = 1<<6, /* Disable Pause Signaling */
+ MFF_ENA_FLUSH = 1<<5, /* Enable Frame Flushing */
+ MFF_DIS_FLUSH = 1<<4, /* Disable Frame Flushing */
+ MFF_ENA_TIST = 1<<3, /* Enable Time Stamp Gener */
+ MFF_DIS_TIST = 1<<2, /* Disable Time Stamp Gener */
+ MFF_CLR_INTIST = 1<<1, /* Clear IRQ No Time Stamp */
+ MFF_CLR_INSTAT = 1<<0, /* Clear IRQ No Status */
+ MFF_RX_CTRL_DEF = MFF_ENA_TIM_PAT,
+};
+
+/* TX_MFF_CTRL1 16 bit Transmit MAC FIFO Control Reg 1 */
+enum {
+ MFF_CLR_PERR = 1<<15, /* Clear Parity Error IRQ */
+
+ MFF_ENA_PKT_REC = 1<<13, /* Enable Packet Recovery */
+ MFF_DIS_PKT_REC = 1<<12, /* Disable Packet Recovery */
+
+ MFF_ENA_W4E = 1<<7, /* Enable Wait for Empty */
+ MFF_DIS_W4E = 1<<6, /* Disable Wait for Empty */
+
+ MFF_ENA_LOOPB = 1<<3, /* Enable Loopback */
+ MFF_DIS_LOOPB = 1<<2, /* Disable Loopback */
+ MFF_CLR_MAC_RST = 1<<1, /* Clear XMAC Reset */
+ MFF_SET_MAC_RST = 1<<0, /* Set XMAC Reset */
+
+ MFF_TX_CTRL_DEF = MFF_ENA_PKT_REC | (u16) MFF_ENA_TIM_PAT | MFF_ENA_FLUSH,
+};
+
+
+/* RX_MFF_TST2 8 bit Receive MAC FIFO Test Register 2 */
+/* TX_MFF_TST2 8 bit Transmit MAC FIFO Test Register 2 */
+enum {
+ MFF_WSP_T_ON = 1<<6, /* Tx: Write Shadow Ptr TestOn */
+ MFF_WSP_T_OFF = 1<<5, /* Tx: Write Shadow Ptr TstOff */
+ MFF_WSP_INC = 1<<4, /* Tx: Write Shadow Ptr Increment */
+ MFF_PC_DEC = 1<<3, /* Packet Counter Decrement */
+ MFF_PC_T_ON = 1<<2, /* Packet Counter Test On */
+ MFF_PC_T_OFF = 1<<1, /* Packet Counter Test Off */
+ MFF_PC_INC = 1<<0, /* Packet Counter Increment */
+};
+
+/* RX_MFF_TST1 8 bit Receive MAC FIFO Test Register 1 */
+/* TX_MFF_TST1 8 bit Transmit MAC FIFO Test Register 1 */
+enum {
+ MFF_WP_T_ON = 1<<6, /* Write Pointer Test On */
+ MFF_WP_T_OFF = 1<<5, /* Write Pointer Test Off */
+ MFF_WP_INC = 1<<4, /* Write Pointer Increm */
+
+ MFF_RP_T_ON = 1<<2, /* Read Pointer Test On */
+ MFF_RP_T_OFF = 1<<1, /* Read Pointer Test Off */
+ MFF_RP_DEC = 1<<0, /* Read Pointer Decrement */
+};
+
+/* RX_MFF_CTRL2 8 bit Receive MAC FIFO Control Reg 2 */
+/* TX_MFF_CTRL2 8 bit Transmit MAC FIFO Control Reg 2 */
+enum {
+ MFF_ENA_OP_MD = 1<<3, /* Enable Operation Mode */
+ MFF_DIS_OP_MD = 1<<2, /* Disable Operation Mode */
+ MFF_RST_CLR = 1<<1, /* Clear MAC FIFO Reset */
+ MFF_RST_SET = 1<<0, /* Set MAC FIFO Reset */
+};
+
+
+/* Link LED Counter Registers (GENESIS only) */
+
+/* RX_LED_CTRL 8 bit Receive LED Cnt Control Reg */
+/* TX_LED_CTRL 8 bit Transmit LED Cnt Control Reg */
+/* LNK_SYNC_CTRL 8 bit Link Sync Cnt Control Register */
+enum {
+ LED_START = 1<<2, /* Start Timer */
+ LED_STOP = 1<<1, /* Stop Timer */
+ LED_STATE = 1<<0, /* Rx/Tx: LED State, 1=LED on */
+};
+
+/* RX_LED_TST 8 bit Receive LED Cnt Test Register */
+/* TX_LED_TST 8 bit Transmit LED Cnt Test Register */
+/* LNK_SYNC_TST 8 bit Link Sync Cnt Test Register */
+enum {
+ LED_T_ON = 1<<2, /* LED Counter Test mode On */
+ LED_T_OFF = 1<<1, /* LED Counter Test mode Off */
+ LED_T_STEP = 1<<0, /* LED Counter Step */
+};
+
+/* LNK_LED_REG 8 bit Link LED Register */
+enum {
+ LED_BLK_ON = 1<<5, /* Link LED Blinking On */
+ LED_BLK_OFF = 1<<4, /* Link LED Blinking Off */
+ LED_SYNC_ON = 1<<3, /* Use Sync Wire to switch LED */
+ LED_SYNC_OFF = 1<<2, /* Disable Sync Wire Input */
+ LED_ON = 1<<1, /* switch LED on */
+ LED_OFF = 1<<0, /* switch LED off */
+};
+
+/* Receive GMAC FIFO (YUKON) */
+enum {
+ RX_GMF_EA = 0x0c40,/* 32 bit Rx GMAC FIFO End Address */
+ RX_GMF_AF_THR = 0x0c44,/* 32 bit Rx GMAC FIFO Almost Full Thresh. */
+ RX_GMF_CTRL_T = 0x0c48,/* 32 bit Rx GMAC FIFO Control/Test */
+ RX_GMF_FL_MSK = 0x0c4c,/* 32 bit Rx GMAC FIFO Flush Mask */
+ RX_GMF_FL_THR = 0x0c50,/* 32 bit Rx GMAC FIFO Flush Threshold */
+ RX_GMF_WP = 0x0c60,/* 32 bit Rx GMAC FIFO Write Pointer */
+ RX_GMF_WLEV = 0x0c68,/* 32 bit Rx GMAC FIFO Write Level */
+ RX_GMF_RP = 0x0c70,/* 32 bit Rx GMAC FIFO Read Pointer */
+ RX_GMF_RLEV = 0x0c78,/* 32 bit Rx GMAC FIFO Read Level */
+};
+
+
+/* TXA_TEST 8 bit Tx Arbiter Test Register */
+enum {
+ TXA_INT_T_ON = 1<<5, /* Tx Arb Interval Timer Test On */
+ TXA_INT_T_OFF = 1<<4, /* Tx Arb Interval Timer Test Off */
+ TXA_INT_T_STEP = 1<<3, /* Tx Arb Interval Timer Step */
+ TXA_LIM_T_ON = 1<<2, /* Tx Arb Limit Timer Test On */
+ TXA_LIM_T_OFF = 1<<1, /* Tx Arb Limit Timer Test Off */
+ TXA_LIM_T_STEP = 1<<0, /* Tx Arb Limit Timer Step */
+};
+
+/* TXA_STAT 8 bit Tx Arbiter Status Register */
+enum {
+ TXA_PRIO_XS = 1<<0, /* sync queue has prio to send */
+};
+
+
+/* Q_BC 32 bit Current Byte Counter */
+
+/* BMU Control Status Registers */
+/* B0_R1_CSR 32 bit BMU Ctrl/Stat Rx Queue 1 */
+/* B0_R2_CSR 32 bit BMU Ctrl/Stat Rx Queue 2 */
+/* B0_XA1_CSR 32 bit BMU Ctrl/Stat Sync Tx Queue 1 */
+/* B0_XS1_CSR 32 bit BMU Ctrl/Stat Async Tx Queue 1 */
+/* B0_XA2_CSR 32 bit BMU Ctrl/Stat Sync Tx Queue 2 */
+/* B0_XS2_CSR 32 bit BMU Ctrl/Stat Async Tx Queue 2 */
+/* Q_CSR 32 bit BMU Control/Status Register */
+
+enum {
+ CSR_SV_IDLE = 1<<24, /* BMU SM Idle */
+
+ CSR_DESC_CLR = 1<<21, /* Clear Reset for Descr */
+ CSR_DESC_SET = 1<<20, /* Set Reset for Descr */
+ CSR_FIFO_CLR = 1<<19, /* Clear Reset for FIFO */
+ CSR_FIFO_SET = 1<<18, /* Set Reset for FIFO */
+ CSR_HPI_RUN = 1<<17, /* Release HPI SM */
+ CSR_HPI_RST = 1<<16, /* Reset HPI SM to Idle */
+ CSR_SV_RUN = 1<<15, /* Release Supervisor SM */
+ CSR_SV_RST = 1<<14, /* Reset Supervisor SM */
+ CSR_DREAD_RUN = 1<<13, /* Release Descr Read SM */
+ CSR_DREAD_RST = 1<<12, /* Reset Descr Read SM */
+ CSR_DWRITE_RUN = 1<<11, /* Release Descr Write SM */
+ CSR_DWRITE_RST = 1<<10, /* Reset Descr Write SM */
+ CSR_TRANS_RUN = 1<<9, /* Release Transfer SM */
+ CSR_TRANS_RST = 1<<8, /* Reset Transfer SM */
+ CSR_ENA_POL = 1<<7, /* Enable Descr Polling */
+ CSR_DIS_POL = 1<<6, /* Disable Descr Polling */
+ CSR_STOP = 1<<5, /* Stop Rx/Tx Queue */
+ CSR_START = 1<<4, /* Start Rx/Tx Queue */
+ CSR_IRQ_CL_P = 1<<3, /* (Rx) Clear Parity IRQ */
+ CSR_IRQ_CL_B = 1<<2, /* Clear EOB IRQ */
+ CSR_IRQ_CL_F = 1<<1, /* Clear EOF IRQ */
+ CSR_IRQ_CL_C = 1<<0, /* Clear ERR IRQ */
+};
+
+#define CSR_SET_RESET (CSR_DESC_SET | CSR_FIFO_SET | CSR_HPI_RST |\
+ CSR_SV_RST | CSR_DREAD_RST | CSR_DWRITE_RST |\
+ CSR_TRANS_RST)
+#define CSR_CLR_RESET (CSR_DESC_CLR | CSR_FIFO_CLR | CSR_HPI_RUN |\
+ CSR_SV_RUN | CSR_DREAD_RUN | CSR_DWRITE_RUN |\
+ CSR_TRANS_RUN)
+
+/* Q_F 32 bit Flag Register */
+enum {
+ F_ALM_FULL = 1<<27, /* Rx FIFO: almost full */
+ F_EMPTY = 1<<27, /* Tx FIFO: empty flag */
+ F_FIFO_EOF = 1<<26, /* Tag (EOF Flag) bit in FIFO */
+ F_WM_REACHED = 1<<25, /* Watermark reached */
+
+ F_FIFO_LEVEL = 0x1fL<<16, /* Bit 23..16: # of Qwords in FIFO */
+ F_WATER_MARK = 0x0007ffL, /* Bit 10.. 0: Watermark */
+};
+
+/* RAM Buffer Register Offsets, use RB_ADDR(Queue, Offs) to access */
+/* RB_START 32 bit RAM Buffer Start Address */
+/* RB_END 32 bit RAM Buffer End Address */
+/* RB_WP 32 bit RAM Buffer Write Pointer */
+/* RB_RP 32 bit RAM Buffer Read Pointer */
+/* RB_RX_UTPP 32 bit Rx Upper Threshold, Pause Pack */
+/* RB_RX_LTPP 32 bit Rx Lower Threshold, Pause Pack */
+/* RB_RX_UTHP 32 bit Rx Upper Threshold, High Prio */
+/* RB_RX_LTHP 32 bit Rx Lower Threshold, High Prio */
+/* RB_PC 32 bit RAM Buffer Packet Counter */
+/* RB_LEV 32 bit RAM Buffer Level Register */
+
+#define RB_MSK 0x0007ffff /* Bit 18.. 0: RAM Buffer Pointer Bits */
+/* RB_TST2 8 bit RAM Buffer Test Register 2 */
+/* RB_TST1 8 bit RAM Buffer Test Register 1 */
+
+/* RB_CTRL 8 bit RAM Buffer Control Register */
+enum {
+ RB_ENA_STFWD = 1<<5, /* Enable Store & Forward */
+ RB_DIS_STFWD = 1<<4, /* Disable Store & Forward */
+ RB_ENA_OP_MD = 1<<3, /* Enable Operation Mode */
+ RB_DIS_OP_MD = 1<<2, /* Disable Operation Mode */
+ RB_RST_CLR = 1<<1, /* Clear RAM Buf STM Reset */
+ RB_RST_SET = 1<<0, /* Set RAM Buf STM Reset */
+};
+
+/* Transmit MAC FIFO and Transmit LED Registers (GENESIS only), */
+enum {
+ TX_MFF_EA = 0x0d00,/* 32 bit Transmit MAC FIFO End Address */
+ TX_MFF_WP = 0x0d04,/* 32 bit Transmit MAC FIFO WR Pointer */
+ TX_MFF_WSP = 0x0d08,/* 32 bit Transmit MAC FIFO WR Shadow Ptr */
+ TX_MFF_RP = 0x0d0c,/* 32 bit Transmit MAC FIFO RD Pointer */
+ TX_MFF_PC = 0x0d10,/* 32 bit Transmit MAC FIFO Packet Cnt */
+ TX_MFF_LEV = 0x0d14,/* 32 bit Transmit MAC FIFO Level */
+ TX_MFF_CTRL1 = 0x0d18,/* 16 bit Transmit MAC FIFO Ctrl Reg 1 */
+ TX_MFF_WAF = 0x0d1a,/* 8 bit Transmit MAC Wait after flush */
+
+ TX_MFF_CTRL2 = 0x0d1c,/* 8 bit Transmit MAC FIFO Ctrl Reg 2 */
+ TX_MFF_TST1 = 0x0d1d,/* 8 bit Transmit MAC FIFO Test Reg 1 */
+ TX_MFF_TST2 = 0x0d1e,/* 8 bit Transmit MAC FIFO Test Reg 2 */
+
+ TX_LED_INI = 0x0d20,/* 32 bit Transmit LED Cnt Init Value */
+ TX_LED_VAL = 0x0d24,/* 32 bit Transmit LED Cnt Current Val */
+ TX_LED_CTRL = 0x0d28,/* 8 bit Transmit LED Cnt Control Reg */
+ TX_LED_TST = 0x0d29,/* 8 bit Transmit LED Cnt Test Reg */
+};
+
+/* Counter and Timer constants, for a host clock of 62.5 MHz */
+#define SK_XMIT_DUR 0x002faf08UL /* 50 ms */
+#define SK_BLK_DUR 0x01dcd650UL /* 500 ms */
+
+#define SK_DPOLL_DEF 0x00ee6b28UL /* 250 ms at 62.5 MHz */
+
+#define SK_DPOLL_MAX 0x00ffffffUL /* 268 ms at 62.5 MHz */
+ /* 215 ms at 78.12 MHz */
+
+#define SK_FACT_62 100 /* is given in percent */
+#define SK_FACT_53 85 /* on GENESIS: 53.12 MHz */
+#define SK_FACT_78 125 /* on YUKON: 78.12 MHz */
+
+
+/* Transmit GMAC FIFO (YUKON only) */
+enum {
+ TX_GMF_EA = 0x0d40,/* 32 bit Tx GMAC FIFO End Address */
+ TX_GMF_AE_THR = 0x0d44,/* 32 bit Tx GMAC FIFO Almost Empty Thresh.*/
+ TX_GMF_CTRL_T = 0x0d48,/* 32 bit Tx GMAC FIFO Control/Test */
+
+ TX_GMF_WP = 0x0d60,/* 32 bit Tx GMAC FIFO Write Pointer */
+ TX_GMF_WSP = 0x0d64,/* 32 bit Tx GMAC FIFO Write Shadow Ptr. */
+ TX_GMF_WLEV = 0x0d68,/* 32 bit Tx GMAC FIFO Write Level */
+
+ TX_GMF_RP = 0x0d70,/* 32 bit Tx GMAC FIFO Read Pointer */
+ TX_GMF_RSTP = 0x0d74,/* 32 bit Tx GMAC FIFO Restart Pointer */
+ TX_GMF_RLEV = 0x0d78,/* 32 bit Tx GMAC FIFO Read Level */
+
+ /* Descriptor Poll Timer Registers */
+ B28_DPT_INI = 0x0e00,/* 24 bit Descriptor Poll Timer Init Val */
+ B28_DPT_VAL = 0x0e04,/* 24 bit Descriptor Poll Timer Curr Val */
+ B28_DPT_CTRL = 0x0e08,/* 8 bit Descriptor Poll Timer Ctrl Reg */
+
+ B28_DPT_TST = 0x0e0a,/* 8 bit Descriptor Poll Timer Test Reg */
+
+ /* Time Stamp Timer Registers (YUKON only) */
+ GMAC_TI_ST_VAL = 0x0e14,/* 32 bit Time Stamp Timer Curr Val */
+ GMAC_TI_ST_CTRL = 0x0e18,/* 8 bit Time Stamp Timer Ctrl Reg */
+ GMAC_TI_ST_TST = 0x0e1a,/* 8 bit Time Stamp Timer Test Reg */
+};
+
+
+enum {
+ LINKLED_OFF = 0x01,
+ LINKLED_ON = 0x02,
+ LINKLED_LINKSYNC_OFF = 0x04,
+ LINKLED_LINKSYNC_ON = 0x08,
+ LINKLED_BLINK_OFF = 0x10,
+ LINKLED_BLINK_ON = 0x20,
+};
+
+/* GMAC and GPHY Control Registers (YUKON only) */
+enum {
+ GMAC_CTRL = 0x0f00,/* 32 bit GMAC Control Reg */
+ GPHY_CTRL = 0x0f04,/* 32 bit GPHY Control Reg */
+ GMAC_IRQ_SRC = 0x0f08,/* 8 bit GMAC Interrupt Source Reg */
+ GMAC_IRQ_MSK = 0x0f0c,/* 8 bit GMAC Interrupt Mask Reg */
+ GMAC_LINK_CTRL = 0x0f10,/* 16 bit Link Control Reg */
+
+/* Wake-up Frame Pattern Match Control Registers (YUKON only) */
+
+ WOL_REG_OFFS = 0x20,/* HW-Bug: Address is + 0x20 against spec. */
+
+ WOL_CTRL_STAT = 0x0f20,/* 16 bit WOL Control/Status Reg */
+ WOL_MATCH_CTL = 0x0f22,/* 8 bit WOL Match Control Reg */
+ WOL_MATCH_RES = 0x0f23,/* 8 bit WOL Match Result Reg */
+ WOL_MAC_ADDR = 0x0f24,/* 32 bit WOL MAC Address */
+ WOL_PATT_RPTR = 0x0f2c,/* 8 bit WOL Pattern Read Pointer */
+
+/* WOL Pattern Length Registers (YUKON only) */
+
+ WOL_PATT_LEN_LO = 0x0f30,/* 32 bit WOL Pattern Length 3..0 */
+ WOL_PATT_LEN_HI = 0x0f34,/* 24 bit WOL Pattern Length 6..4 */
+
+/* WOL Pattern Counter Registers (YUKON only) */
+
+ WOL_PATT_CNT_0 = 0x0f38,/* 32 bit WOL Pattern Counter 3..0 */
+ WOL_PATT_CNT_4 = 0x0f3c,/* 24 bit WOL Pattern Counter 6..4 */
+};
+#define WOL_REGS(port, x) (x + (port)*0x80)
+
+enum {
+ WOL_PATT_RAM_1 = 0x1000,/* WOL Pattern RAM Link 1 */
+ WOL_PATT_RAM_2 = 0x1400,/* WOL Pattern RAM Link 2 */
+};
+#define WOL_PATT_RAM_BASE(port) (WOL_PATT_RAM_1 + (port)*0x400)
+
+enum {
+ BASE_XMAC_1 = 0x2000,/* XMAC 1 registers */
+ BASE_GMAC_1 = 0x2800,/* GMAC 1 registers */
+ BASE_XMAC_2 = 0x3000,/* XMAC 2 registers */
+ BASE_GMAC_2 = 0x3800,/* GMAC 2 registers */
+};
+
+/*
+ * Receive Frame Status Encoding
+ */
+enum {
+ XMR_FS_LEN = 0x3fff<<18, /* Bit 31..18: Rx Frame Length */
+ XMR_FS_LEN_SHIFT = 18,
+ XMR_FS_2L_VLAN = 1<<17, /* Bit 17: tagged wh 2Lev VLAN ID*/
+ XMR_FS_1_VLAN = 1<<16, /* Bit 16: tagged wh 1ev VLAN ID*/
+ XMR_FS_BC = 1<<15, /* Bit 15: Broadcast Frame */
+ XMR_FS_MC = 1<<14, /* Bit 14: Multicast Frame */
+ XMR_FS_UC = 1<<13, /* Bit 13: Unicast Frame */
+
+ XMR_FS_BURST = 1<<11, /* Bit 11: Burst Mode */
+ XMR_FS_CEX_ERR = 1<<10, /* Bit 10: Carrier Ext. Error */
+ XMR_FS_802_3 = 1<<9, /* Bit 9: 802.3 Frame */
+ XMR_FS_COL_ERR = 1<<8, /* Bit 8: Collision Error */
+ XMR_FS_CAR_ERR = 1<<7, /* Bit 7: Carrier Event Error */
+ XMR_FS_LEN_ERR = 1<<6, /* Bit 6: In-Range Length Error */
+ XMR_FS_FRA_ERR = 1<<5, /* Bit 5: Framing Error */
+ XMR_FS_RUNT = 1<<4, /* Bit 4: Runt Frame */
+ XMR_FS_LNG_ERR = 1<<3, /* Bit 3: Giant (Jumbo) Frame */
+ XMR_FS_FCS_ERR = 1<<2, /* Bit 2: Frame Check Sequ Err */
+ XMR_FS_ERR = 1<<1, /* Bit 1: Frame Error */
+ XMR_FS_MCTRL = 1<<0, /* Bit 0: MAC Control Packet */
+
+/*
+ * XMR_FS_ERR will be set if
+ * XMR_FS_FCS_ERR, XMR_FS_LNG_ERR, XMR_FS_RUNT,
+ * XMR_FS_FRA_ERR, XMR_FS_LEN_ERR, or XMR_FS_CEX_ERR
+ * is set. XMR_FS_LNG_ERR and XMR_FS_LEN_ERR will issue
+ * XMR_FS_ERR unless the corresponding bit in the Receive Command
+ * Register is set.
+ */
+};
+
+/*
+,* XMAC-PHY Registers, indirect addressed over the XMAC
+ */
+enum {
+ PHY_XMAC_CTRL = 0x00,/* 16 bit r/w PHY Control Register */
+ PHY_XMAC_STAT = 0x01,/* 16 bit r/w PHY Status Register */
+ PHY_XMAC_ID0 = 0x02,/* 16 bit r/o PHY ID0 Register */
+ PHY_XMAC_ID1 = 0x03,/* 16 bit r/o PHY ID1 Register */
+ PHY_XMAC_AUNE_ADV = 0x04,/* 16 bit r/w Auto-Neg. Advertisement */
+ PHY_XMAC_AUNE_LP = 0x05,/* 16 bit r/o Link Partner Abi Reg */
+ PHY_XMAC_AUNE_EXP = 0x06,/* 16 bit r/o Auto-Neg. Expansion Reg */
+ PHY_XMAC_NEPG = 0x07,/* 16 bit r/w Next Page Register */
+ PHY_XMAC_NEPG_LP = 0x08,/* 16 bit r/o Next Page Link Partner */
+
+ PHY_XMAC_EXT_STAT = 0x0f,/* 16 bit r/o Ext Status Register */
+ PHY_XMAC_RES_ABI = 0x10,/* 16 bit r/o PHY Resolved Ability */
+};
+/*
+ * Broadcom-PHY Registers, indirect addressed over XMAC
+ */
+enum {
+ PHY_BCOM_CTRL = 0x00,/* 16 bit r/w PHY Control Register */
+ PHY_BCOM_STAT = 0x01,/* 16 bit r/o PHY Status Register */
+ PHY_BCOM_ID0 = 0x02,/* 16 bit r/o PHY ID0 Register */
+ PHY_BCOM_ID1 = 0x03,/* 16 bit r/o PHY ID1 Register */
+ PHY_BCOM_AUNE_ADV = 0x04,/* 16 bit r/w Auto-Neg. Advertisement */
+ PHY_BCOM_AUNE_LP = 0x05,/* 16 bit r/o Link Part Ability Reg */
+ PHY_BCOM_AUNE_EXP = 0x06,/* 16 bit r/o Auto-Neg. Expansion Reg */
+ PHY_BCOM_NEPG = 0x07,/* 16 bit r/w Next Page Register */
+ PHY_BCOM_NEPG_LP = 0x08,/* 16 bit r/o Next Page Link Partner */
+ /* Broadcom-specific registers */
+ PHY_BCOM_1000T_CTRL = 0x09,/* 16 bit r/w 1000Base-T Control Reg */
+ PHY_BCOM_1000T_STAT = 0x0a,/* 16 bit r/o 1000Base-T Status Reg */
+ PHY_BCOM_EXT_STAT = 0x0f,/* 16 bit r/o Extended Status Reg */
+ PHY_BCOM_P_EXT_CTRL = 0x10,/* 16 bit r/w PHY Extended Ctrl Reg */
+ PHY_BCOM_P_EXT_STAT = 0x11,/* 16 bit r/o PHY Extended Stat Reg */
+ PHY_BCOM_RE_CTR = 0x12,/* 16 bit r/w Receive Error Counter */
+ PHY_BCOM_FC_CTR = 0x13,/* 16 bit r/w False Carrier Sense Cnt */
+ PHY_BCOM_RNO_CTR = 0x14,/* 16 bit r/w Receiver NOT_OK Cnt */
+
+ PHY_BCOM_AUX_CTRL = 0x18,/* 16 bit r/w Auxiliary Control Reg */
+ PHY_BCOM_AUX_STAT = 0x19,/* 16 bit r/o Auxiliary Stat Summary */
+ PHY_BCOM_INT_STAT = 0x1a,/* 16 bit r/o Interrupt Status Reg */
+ PHY_BCOM_INT_MASK = 0x1b,/* 16 bit r/w Interrupt Mask Reg */
+};
+
+/*
+ * Marvel-PHY Registers, indirect addressed over GMAC
+ */
+enum {
+ PHY_MARV_CTRL = 0x00,/* 16 bit r/w PHY Control Register */
+ PHY_MARV_STAT = 0x01,/* 16 bit r/o PHY Status Register */
+ PHY_MARV_ID0 = 0x02,/* 16 bit r/o PHY ID0 Register */
+ PHY_MARV_ID1 = 0x03,/* 16 bit r/o PHY ID1 Register */
+ PHY_MARV_AUNE_ADV = 0x04,/* 16 bit r/w Auto-Neg. Advertisement */
+ PHY_MARV_AUNE_LP = 0x05,/* 16 bit r/o Link Part Ability Reg */
+ PHY_MARV_AUNE_EXP = 0x06,/* 16 bit r/o Auto-Neg. Expansion Reg */
+ PHY_MARV_NEPG = 0x07,/* 16 bit r/w Next Page Register */
+ PHY_MARV_NEPG_LP = 0x08,/* 16 bit r/o Next Page Link Partner */
+ /* Marvel-specific registers */
+ PHY_MARV_1000T_CTRL = 0x09,/* 16 bit r/w 1000Base-T Control Reg */
+ PHY_MARV_1000T_STAT = 0x0a,/* 16 bit r/o 1000Base-T Status Reg */
+ PHY_MARV_EXT_STAT = 0x0f,/* 16 bit r/o Extended Status Reg */
+ PHY_MARV_PHY_CTRL = 0x10,/* 16 bit r/w PHY Specific Ctrl Reg */
+ PHY_MARV_PHY_STAT = 0x11,/* 16 bit r/o PHY Specific Stat Reg */
+ PHY_MARV_INT_MASK = 0x12,/* 16 bit r/w Interrupt Mask Reg */
+ PHY_MARV_INT_STAT = 0x13,/* 16 bit r/o Interrupt Status Reg */
+ PHY_MARV_EXT_CTRL = 0x14,/* 16 bit r/w Ext. PHY Specific Ctrl */
+ PHY_MARV_RXE_CNT = 0x15,/* 16 bit r/w Receive Error Counter */
+ PHY_MARV_EXT_ADR = 0x16,/* 16 bit r/w Ext. Ad. for Cable Diag. */
+ PHY_MARV_PORT_IRQ = 0x17,/* 16 bit r/o Port 0 IRQ (88E1111 only) */
+ PHY_MARV_LED_CTRL = 0x18,/* 16 bit r/w LED Control Reg */
+ PHY_MARV_LED_OVER = 0x19,/* 16 bit r/w Manual LED Override Reg */
+ PHY_MARV_EXT_CTRL_2 = 0x1a,/* 16 bit r/w Ext. PHY Specific Ctrl 2 */
+ PHY_MARV_EXT_P_STAT = 0x1b,/* 16 bit r/w Ext. PHY Spec. Stat Reg */
+ PHY_MARV_CABLE_DIAG = 0x1c,/* 16 bit r/o Cable Diagnostic Reg */
+ PHY_MARV_PAGE_ADDR = 0x1d,/* 16 bit r/w Extended Page Address Reg */
+ PHY_MARV_PAGE_DATA = 0x1e,/* 16 bit r/w Extended Page Data Reg */
+
+/* for 10/100 Fast Ethernet PHY (88E3082 only) */
+ PHY_MARV_FE_LED_PAR = 0x16,/* 16 bit r/w LED Parallel Select Reg. */
+ PHY_MARV_FE_LED_SER = 0x17,/* 16 bit r/w LED Stream Select S. LED */
+ PHY_MARV_FE_VCT_TX = 0x1a,/* 16 bit r/w VCT Reg. for TXP/N Pins */
+ PHY_MARV_FE_VCT_RX = 0x1b,/* 16 bit r/o VCT Reg. for RXP/N Pins */
+ PHY_MARV_FE_SPEC_2 = 0x1c,/* 16 bit r/w Specific Control Reg. 2 */
+};
+
+enum {
+ PHY_CT_RESET = 1<<15, /* Bit 15: (sc) clear all PHY related regs */
+ PHY_CT_LOOP = 1<<14, /* Bit 14: enable Loopback over PHY */
+ PHY_CT_SPS_LSB = 1<<13, /* Bit 13: Speed select, lower bit */
+ PHY_CT_ANE = 1<<12, /* Bit 12: Auto-Negotiation Enabled */
+ PHY_CT_PDOWN = 1<<11, /* Bit 11: Power Down Mode */
+ PHY_CT_ISOL = 1<<10, /* Bit 10: Isolate Mode */
+ PHY_CT_RE_CFG = 1<<9, /* Bit 9: (sc) Restart Auto-Negotiation */
+ PHY_CT_DUP_MD = 1<<8, /* Bit 8: Duplex Mode */
+ PHY_CT_COL_TST = 1<<7, /* Bit 7: Collision Test enabled */
+ PHY_CT_SPS_MSB = 1<<6, /* Bit 6: Speed select, upper bit */
+};
+
+enum {
+ PHY_CT_SP1000 = PHY_CT_SPS_MSB, /* enable speed of 1000 Mbps */
+ PHY_CT_SP100 = PHY_CT_SPS_LSB, /* enable speed of 100 Mbps */
+ PHY_CT_SP10 = 0, /* enable speed of 10 Mbps */
+};
+
+enum {
+ PHY_ST_EXT_ST = 1<<8, /* Bit 8: Extended Status Present */
+
+ PHY_ST_PRE_SUP = 1<<6, /* Bit 6: Preamble Suppression */
+ PHY_ST_AN_OVER = 1<<5, /* Bit 5: Auto-Negotiation Over */
+ PHY_ST_REM_FLT = 1<<4, /* Bit 4: Remote Fault Condition Occurred */
+ PHY_ST_AN_CAP = 1<<3, /* Bit 3: Auto-Negotiation Capability */
+ PHY_ST_LSYNC = 1<<2, /* Bit 2: Link Synchronized */
+ PHY_ST_JAB_DET = 1<<1, /* Bit 1: Jabber Detected */
+ PHY_ST_EXT_REG = 1<<0, /* Bit 0: Extended Register available */
+};
+
+enum {
+ PHY_I1_OUI_MSK = 0x3f<<10, /* Bit 15..10: Organization Unique ID */
+ PHY_I1_MOD_NUM = 0x3f<<4, /* Bit 9.. 4: Model Number */
+ PHY_I1_REV_MSK = 0xf, /* Bit 3.. 0: Revision Number */
+};
+
+/* different Broadcom PHY Ids */
+enum {
+ PHY_BCOM_ID1_A1 = 0x6041,
+ PHY_BCOM_ID1_B2 = 0x6043,
+ PHY_BCOM_ID1_C0 = 0x6044,
+ PHY_BCOM_ID1_C5 = 0x6047,
+};
+
+/* different Marvell PHY Ids */
+enum {
+ PHY_MARV_ID0_VAL= 0x0141, /* Marvell Unique Identifier */
+ PHY_MARV_ID1_B0 = 0x0C23, /* Yukon (PHY 88E1011) */
+ PHY_MARV_ID1_B2 = 0x0C25, /* Yukon-Plus (PHY 88E1011) */
+ PHY_MARV_ID1_C2 = 0x0CC2, /* Yukon-EC (PHY 88E1111) */
+ PHY_MARV_ID1_Y2 = 0x0C91, /* Yukon-2 (PHY 88E1112) */
+};
+
+/* Advertisement register bits */
+enum {
+ PHY_AN_NXT_PG = 1<<15, /* Bit 15: Request Next Page */
+ PHY_AN_ACK = 1<<14, /* Bit 14: (ro) Acknowledge Received */
+ PHY_AN_RF = 1<<13, /* Bit 13: Remote Fault Bits */
+
+ PHY_AN_PAUSE_ASYM = 1<<11,/* Bit 11: Try for asymmetric */
+ PHY_AN_PAUSE_CAP = 1<<10, /* Bit 10: Try for pause */
+ PHY_AN_100BASE4 = 1<<9, /* Bit 9: Try for 100mbps 4k packets */
+ PHY_AN_100FULL = 1<<8, /* Bit 8: Try for 100mbps full-duplex */
+ PHY_AN_100HALF = 1<<7, /* Bit 7: Try for 100mbps half-duplex */
+ PHY_AN_10FULL = 1<<6, /* Bit 6: Try for 10mbps full-duplex */
+ PHY_AN_10HALF = 1<<5, /* Bit 5: Try for 10mbps half-duplex */
+ PHY_AN_CSMA = 1<<0, /* Bit 0: Only selector supported */
+ PHY_AN_SEL = 0x1f, /* Bit 4..0: Selector Field, 00001=Ethernet*/
+ PHY_AN_FULL = PHY_AN_100FULL | PHY_AN_10FULL | PHY_AN_CSMA,
+ PHY_AN_ALL = PHY_AN_10HALF | PHY_AN_10FULL |
+ PHY_AN_100HALF | PHY_AN_100FULL,
+};
+
+/* Xmac Specific */
+enum {
+ PHY_X_AN_NXT_PG = 1<<15, /* Bit 15: Request Next Page */
+ PHY_X_AN_ACK = 1<<14, /* Bit 14: (ro) Acknowledge Received */
+ PHY_X_AN_RFB = 3<<12,/* Bit 13..12: Remote Fault Bits */
+
+ PHY_X_AN_PAUSE = 3<<7,/* Bit 8.. 7: Pause Bits */
+ PHY_X_AN_HD = 1<<6, /* Bit 6: Half Duplex */
+ PHY_X_AN_FD = 1<<5, /* Bit 5: Full Duplex */
+};
+
+/* Pause Bits (PHY_X_AN_PAUSE and PHY_X_RS_PAUSE) encoding */
+enum {
+ PHY_X_P_NO_PAUSE= 0<<7,/* Bit 8..7: no Pause Mode */
+ PHY_X_P_SYM_MD = 1<<7, /* Bit 8..7: symmetric Pause Mode */
+ PHY_X_P_ASYM_MD = 2<<7,/* Bit 8..7: asymmetric Pause Mode */
+ PHY_X_P_BOTH_MD = 3<<7,/* Bit 8..7: both Pause Mode */
+};
+
+
+/***** PHY_XMAC_EXT_STAT 16 bit r/w Extended Status Register *****/
+enum {
+ PHY_X_EX_FD = 1<<15, /* Bit 15: Device Supports Full Duplex */
+ PHY_X_EX_HD = 1<<14, /* Bit 14: Device Supports Half Duplex */
+};
+
+/***** PHY_XMAC_RES_ABI 16 bit r/o PHY Resolved Ability *****/
+enum {
+ PHY_X_RS_PAUSE = 3<<7, /* Bit 8..7: selected Pause Mode */
+ PHY_X_RS_HD = 1<<6, /* Bit 6: Half Duplex Mode selected */
+ PHY_X_RS_FD = 1<<5, /* Bit 5: Full Duplex Mode selected */
+ PHY_X_RS_ABLMIS = 1<<4, /* Bit 4: duplex or pause cap mismatch */
+ PHY_X_RS_PAUMIS = 1<<3, /* Bit 3: pause capability mismatch */
+};
+
+/* Remote Fault Bits (PHY_X_AN_RFB) encoding */
+enum {
+ X_RFB_OK = 0<<12,/* Bit 13..12 No errors, Link OK */
+ X_RFB_LF = 1<<12,/* Bit 13..12 Link Failure */
+ X_RFB_OFF = 2<<12,/* Bit 13..12 Offline */
+ X_RFB_AN_ERR = 3<<12,/* Bit 13..12 Auto-Negotiation Error */
+};
+
+/* Broadcom-Specific */
+/***** PHY_BCOM_1000T_CTRL 16 bit r/w 1000Base-T Control Reg *****/
+enum {
+ PHY_B_1000C_TEST = 7<<13,/* Bit 15..13: Test Modes */
+ PHY_B_1000C_MSE = 1<<12, /* Bit 12: Master/Slave Enable */
+ PHY_B_1000C_MSC = 1<<11, /* Bit 11: M/S Configuration */
+ PHY_B_1000C_RD = 1<<10, /* Bit 10: Repeater/DTE */
+ PHY_B_1000C_AFD = 1<<9, /* Bit 9: Advertise Full Duplex */
+ PHY_B_1000C_AHD = 1<<8, /* Bit 8: Advertise Half Duplex */
+};
+
+/***** PHY_BCOM_1000T_STAT 16 bit r/o 1000Base-T Status Reg *****/
+/***** PHY_MARV_1000T_STAT 16 bit r/o 1000Base-T Status Reg *****/
+enum {
+ PHY_B_1000S_MSF = 1<<15, /* Bit 15: Master/Slave Fault */
+ PHY_B_1000S_MSR = 1<<14, /* Bit 14: Master/Slave Result */
+ PHY_B_1000S_LRS = 1<<13, /* Bit 13: Local Receiver Status */
+ PHY_B_1000S_RRS = 1<<12, /* Bit 12: Remote Receiver Status */
+ PHY_B_1000S_LP_FD = 1<<11, /* Bit 11: Link Partner can FD */
+ PHY_B_1000S_LP_HD = 1<<10, /* Bit 10: Link Partner can HD */
+ /* Bit 9..8: reserved */
+ PHY_B_1000S_IEC = 0xff, /* Bit 7..0: Idle Error Count */
+};
+
+/***** PHY_BCOM_EXT_STAT 16 bit r/o Extended Status Register *****/
+enum {
+ PHY_B_ES_X_FD_CAP = 1<<15, /* Bit 15: 1000Base-X FD capable */
+ PHY_B_ES_X_HD_CAP = 1<<14, /* Bit 14: 1000Base-X HD capable */
+ PHY_B_ES_T_FD_CAP = 1<<13, /* Bit 13: 1000Base-T FD capable */
+ PHY_B_ES_T_HD_CAP = 1<<12, /* Bit 12: 1000Base-T HD capable */
+};
+
+/***** PHY_BCOM_P_EXT_CTRL 16 bit r/w PHY Extended Control Reg *****/
+enum {
+ PHY_B_PEC_MAC_PHY = 1<<15, /* Bit 15: 10BIT/GMI-Interface */
+ PHY_B_PEC_DIS_CROSS = 1<<14, /* Bit 14: Disable MDI Crossover */
+ PHY_B_PEC_TX_DIS = 1<<13, /* Bit 13: Tx output Disabled */
+ PHY_B_PEC_INT_DIS = 1<<12, /* Bit 12: Interrupts Disabled */
+ PHY_B_PEC_F_INT = 1<<11, /* Bit 11: Force Interrupt */
+ PHY_B_PEC_BY_45 = 1<<10, /* Bit 10: Bypass 4B5B-Decoder */
+ PHY_B_PEC_BY_SCR = 1<<9, /* Bit 9: Bypass Scrambler */
+ PHY_B_PEC_BY_MLT3 = 1<<8, /* Bit 8: Bypass MLT3 Encoder */
+ PHY_B_PEC_BY_RXA = 1<<7, /* Bit 7: Bypass Rx Alignm. */
+ PHY_B_PEC_RES_SCR = 1<<6, /* Bit 6: Reset Scrambler */
+ PHY_B_PEC_EN_LTR = 1<<5, /* Bit 5: Ena LED Traffic Mode */
+ PHY_B_PEC_LED_ON = 1<<4, /* Bit 4: Force LED's on */
+ PHY_B_PEC_LED_OFF = 1<<3, /* Bit 3: Force LED's off */
+ PHY_B_PEC_EX_IPG = 1<<2, /* Bit 2: Extend Tx IPG Mode */
+ PHY_B_PEC_3_LED = 1<<1, /* Bit 1: Three Link LED mode */
+ PHY_B_PEC_HIGH_LA = 1<<0, /* Bit 0: GMII FIFO Elasticy */
+};
+
+/***** PHY_BCOM_P_EXT_STAT 16 bit r/o PHY Extended Status Reg *****/
+enum {
+ PHY_B_PES_CROSS_STAT = 1<<13, /* Bit 13: MDI Crossover Status */
+ PHY_B_PES_INT_STAT = 1<<12, /* Bit 12: Interrupt Status */
+ PHY_B_PES_RRS = 1<<11, /* Bit 11: Remote Receiver Stat. */
+ PHY_B_PES_LRS = 1<<10, /* Bit 10: Local Receiver Stat. */
+ PHY_B_PES_LOCKED = 1<<9, /* Bit 9: Locked */
+ PHY_B_PES_LS = 1<<8, /* Bit 8: Link Status */
+ PHY_B_PES_RF = 1<<7, /* Bit 7: Remote Fault */
+ PHY_B_PES_CE_ER = 1<<6, /* Bit 6: Carrier Ext Error */
+ PHY_B_PES_BAD_SSD = 1<<5, /* Bit 5: Bad SSD */
+ PHY_B_PES_BAD_ESD = 1<<4, /* Bit 4: Bad ESD */
+ PHY_B_PES_RX_ER = 1<<3, /* Bit 3: Receive Error */
+ PHY_B_PES_TX_ER = 1<<2, /* Bit 2: Transmit Error */
+ PHY_B_PES_LOCK_ER = 1<<1, /* Bit 1: Lock Error */
+ PHY_B_PES_MLT3_ER = 1<<0, /* Bit 0: MLT3 code Error */
+};
+
+/* PHY_BCOM_AUNE_ADV 16 bit r/w Auto-Negotiation Advertisement *****/
+/* PHY_BCOM_AUNE_LP 16 bit r/o Link Partner Ability Reg *****/
+enum {
+ PHY_B_AN_RF = 1<<13, /* Bit 13: Remote Fault */
+
+ PHY_B_AN_ASP = 1<<11, /* Bit 11: Asymmetric Pause */
+ PHY_B_AN_PC = 1<<10, /* Bit 10: Pause Capable */
+};
+
+
+/***** PHY_BCOM_FC_CTR 16 bit r/w False Carrier Counter *****/
+enum {
+ PHY_B_FC_CTR = 0xff, /* Bit 7..0: False Carrier Counter */
+
+/***** PHY_BCOM_RNO_CTR 16 bit r/w Receive NOT_OK Counter *****/
+ PHY_B_RC_LOC_MSK = 0xff00, /* Bit 15..8: Local Rx NOT_OK cnt */
+ PHY_B_RC_REM_MSK = 0x00ff, /* Bit 7..0: Remote Rx NOT_OK cnt */
+
+/***** PHY_BCOM_AUX_CTRL 16 bit r/w Auxiliary Control Reg *****/
+ PHY_B_AC_L_SQE = 1<<15, /* Bit 15: Low Squelch */
+ PHY_B_AC_LONG_PACK = 1<<14, /* Bit 14: Rx Long Packets */
+ PHY_B_AC_ER_CTRL = 3<<12,/* Bit 13..12: Edgerate Control */
+ /* Bit 11: reserved */
+ PHY_B_AC_TX_TST = 1<<10, /* Bit 10: Tx test bit, always 1 */
+ /* Bit 9.. 8: reserved */
+ PHY_B_AC_DIS_PRF = 1<<7, /* Bit 7: dis part resp filter */
+ /* Bit 6: reserved */
+ PHY_B_AC_DIS_PM = 1<<5, /* Bit 5: dis power management */
+ /* Bit 4: reserved */
+ PHY_B_AC_DIAG = 1<<3, /* Bit 3: Diagnostic Mode */
+};
+
+/***** PHY_BCOM_AUX_STAT 16 bit r/o Auxiliary Status Reg *****/
+enum {
+ PHY_B_AS_AN_C = 1<<15, /* Bit 15: AutoNeg complete */
+ PHY_B_AS_AN_CA = 1<<14, /* Bit 14: AN Complete Ack */
+ PHY_B_AS_ANACK_D = 1<<13, /* Bit 13: AN Ack Detect */
+ PHY_B_AS_ANAB_D = 1<<12, /* Bit 12: AN Ability Detect */
+ PHY_B_AS_NPW = 1<<11, /* Bit 11: AN Next Page Wait */
+ PHY_B_AS_AN_RES_MSK = 7<<8,/* Bit 10..8: AN HDC */
+ PHY_B_AS_PDF = 1<<7, /* Bit 7: Parallel Detect. Fault */
+ PHY_B_AS_RF = 1<<6, /* Bit 6: Remote Fault */
+ PHY_B_AS_ANP_R = 1<<5, /* Bit 5: AN Page Received */
+ PHY_B_AS_LP_ANAB = 1<<4, /* Bit 4: LP AN Ability */
+ PHY_B_AS_LP_NPAB = 1<<3, /* Bit 3: LP Next Page Ability */
+ PHY_B_AS_LS = 1<<2, /* Bit 2: Link Status */
+ PHY_B_AS_PRR = 1<<1, /* Bit 1: Pause Resolution-Rx */
+ PHY_B_AS_PRT = 1<<0, /* Bit 0: Pause Resolution-Tx */
+};
+#define PHY_B_AS_PAUSE_MSK (PHY_B_AS_PRR | PHY_B_AS_PRT)
+
+/***** PHY_BCOM_INT_STAT 16 bit r/o Interrupt Status Reg *****/
+/***** PHY_BCOM_INT_MASK 16 bit r/w Interrupt Mask Reg *****/
+enum {
+ PHY_B_IS_PSE = 1<<14, /* Bit 14: Pair Swap Error */
+ PHY_B_IS_MDXI_SC = 1<<13, /* Bit 13: MDIX Status Change */
+ PHY_B_IS_HCT = 1<<12, /* Bit 12: counter above 32k */
+ PHY_B_IS_LCT = 1<<11, /* Bit 11: counter above 128 */
+ PHY_B_IS_AN_PR = 1<<10, /* Bit 10: Page Received */
+ PHY_B_IS_NO_HDCL = 1<<9, /* Bit 9: No HCD Link */
+ PHY_B_IS_NO_HDC = 1<<8, /* Bit 8: No HCD */
+ PHY_B_IS_NEG_USHDC = 1<<7, /* Bit 7: Negotiated Unsup. HCD */
+ PHY_B_IS_SCR_S_ER = 1<<6, /* Bit 6: Scrambler Sync Error */
+ PHY_B_IS_RRS_CHANGE = 1<<5, /* Bit 5: Remote Rx Stat Change */
+ PHY_B_IS_LRS_CHANGE = 1<<4, /* Bit 4: Local Rx Stat Change */
+ PHY_B_IS_DUP_CHANGE = 1<<3, /* Bit 3: Duplex Mode Change */
+ PHY_B_IS_LSP_CHANGE = 1<<2, /* Bit 2: Link Speed Change */
+ PHY_B_IS_LST_CHANGE = 1<<1, /* Bit 1: Link Status Changed */
+ PHY_B_IS_CRC_ER = 1<<0, /* Bit 0: CRC Error */
+};
+#define PHY_B_DEF_MSK \
+ (~(PHY_B_IS_PSE | PHY_B_IS_AN_PR | PHY_B_IS_DUP_CHANGE | \
+ PHY_B_IS_LSP_CHANGE | PHY_B_IS_LST_CHANGE))
+
+/* Pause Bits (PHY_B_AN_ASP and PHY_B_AN_PC) encoding */
+enum {
+ PHY_B_P_NO_PAUSE = 0<<10,/* Bit 11..10: no Pause Mode */
+ PHY_B_P_SYM_MD = 1<<10, /* Bit 11..10: symmetric Pause Mode */
+ PHY_B_P_ASYM_MD = 2<<10,/* Bit 11..10: asymmetric Pause Mode */
+ PHY_B_P_BOTH_MD = 3<<10,/* Bit 11..10: both Pause Mode */
+};
+/*
+ * Resolved Duplex mode and Capabilities (Aux Status Summary Reg)
+ */
+enum {
+ PHY_B_RES_1000FD = 7<<8,/* Bit 10..8: 1000Base-T Full Dup. */
+ PHY_B_RES_1000HD = 6<<8,/* Bit 10..8: 1000Base-T Half Dup. */
+};
+
+/** Marvell-Specific */
+enum {
+ PHY_M_AN_NXT_PG = 1<<15, /* Request Next Page */
+ PHY_M_AN_ACK = 1<<14, /* (ro) Acknowledge Received */
+ PHY_M_AN_RF = 1<<13, /* Remote Fault */
+
+ PHY_M_AN_ASP = 1<<11, /* Asymmetric Pause */
+ PHY_M_AN_PC = 1<<10, /* MAC Pause implemented */
+ PHY_M_AN_100_T4 = 1<<9, /* Not cap. 100Base-T4 (always 0) */
+ PHY_M_AN_100_FD = 1<<8, /* Advertise 100Base-TX Full Duplex */
+ PHY_M_AN_100_HD = 1<<7, /* Advertise 100Base-TX Half Duplex */
+ PHY_M_AN_10_FD = 1<<6, /* Advertise 10Base-TX Full Duplex */
+ PHY_M_AN_10_HD = 1<<5, /* Advertise 10Base-TX Half Duplex */
+ PHY_M_AN_SEL_MSK =0x1f<<4, /* Bit 4.. 0: Selector Field Mask */
+};
+
+/* special defines for FIBER (88E1011S only) */
+enum {
+ PHY_M_AN_ASP_X = 1<<8, /* Asymmetric Pause */
+ PHY_M_AN_PC_X = 1<<7, /* MAC Pause implemented */
+ PHY_M_AN_1000X_AHD = 1<<6, /* Advertise 10000Base-X Half Duplex */
+ PHY_M_AN_1000X_AFD = 1<<5, /* Advertise 10000Base-X Full Duplex */
+};
+
+/* Pause Bits (PHY_M_AN_ASP_X and PHY_M_AN_PC_X) encoding */
+enum {
+ PHY_M_P_NO_PAUSE_X = 0<<7,/* Bit 8.. 7: no Pause Mode */
+ PHY_M_P_SYM_MD_X = 1<<7, /* Bit 8.. 7: symmetric Pause Mode */
+ PHY_M_P_ASYM_MD_X = 2<<7,/* Bit 8.. 7: asymmetric Pause Mode */
+ PHY_M_P_BOTH_MD_X = 3<<7,/* Bit 8.. 7: both Pause Mode */
+};
+
+/***** PHY_MARV_1000T_CTRL 16 bit r/w 1000Base-T Control Reg *****/
+enum {
+ PHY_M_1000C_TEST= 7<<13,/* Bit 15..13: Test Modes */
+ PHY_M_1000C_MSE = 1<<12, /* Manual Master/Slave Enable */
+ PHY_M_1000C_MSC = 1<<11, /* M/S Configuration (1=Master) */
+ PHY_M_1000C_MPD = 1<<10, /* Multi-Port Device */
+ PHY_M_1000C_AFD = 1<<9, /* Advertise Full Duplex */
+ PHY_M_1000C_AHD = 1<<8, /* Advertise Half Duplex */
+};
+
+/***** PHY_MARV_PHY_CTRL 16 bit r/w PHY Specific Ctrl Reg *****/
+enum {
+ PHY_M_PC_TX_FFD_MSK = 3<<14,/* Bit 15..14: Tx FIFO Depth Mask */
+ PHY_M_PC_RX_FFD_MSK = 3<<12,/* Bit 13..12: Rx FIFO Depth Mask */
+ PHY_M_PC_ASS_CRS_TX = 1<<11, /* Assert CRS on Transmit */
+ PHY_M_PC_FL_GOOD = 1<<10, /* Force Link Good */
+ PHY_M_PC_EN_DET_MSK = 3<<8,/* Bit 9.. 8: Energy Detect Mask */
+ PHY_M_PC_ENA_EXT_D = 1<<7, /* Enable Ext. Distance (10BT) */
+ PHY_M_PC_MDIX_MSK = 3<<5,/* Bit 6.. 5: MDI/MDIX Config. Mask */
+ PHY_M_PC_DIS_125CLK = 1<<4, /* Disable 125 CLK */
+ PHY_M_PC_MAC_POW_UP = 1<<3, /* MAC Power up */
+ PHY_M_PC_SQE_T_ENA = 1<<2, /* SQE Test Enabled */
+ PHY_M_PC_POL_R_DIS = 1<<1, /* Polarity Reversal Disabled */
+ PHY_M_PC_DIS_JABBER = 1<<0, /* Disable Jabber */
+};
+
+enum {
+ PHY_M_PC_EN_DET = 2<<8, /* Energy Detect (Mode 1) */
+ PHY_M_PC_EN_DET_PLUS = 3<<8, /* Energy Detect Plus (Mode 2) */
+};
+
+enum {
+ PHY_M_PC_MAN_MDI = 0, /* 00 = Manual MDI configuration */
+ PHY_M_PC_MAN_MDIX = 1, /* 01 = Manual MDIX configuration */
+ PHY_M_PC_ENA_AUTO = 3, /* 11 = Enable Automatic Crossover */
+};
+
+/* for 10/100 Fast Ethernet PHY (88E3082 only) */
+enum {
+ PHY_M_PC_ENA_DTE_DT = 1<<15, /* Enable Data Terminal Equ. (DTE) Detect */
+ PHY_M_PC_ENA_ENE_DT = 1<<14, /* Enable Energy Detect (sense & pulse) */
+ PHY_M_PC_DIS_NLP_CK = 1<<13, /* Disable Normal Link Puls (NLP) Check */
+ PHY_M_PC_ENA_LIP_NP = 1<<12, /* Enable Link Partner Next Page Reg. */
+ PHY_M_PC_DIS_NLP_GN = 1<<11, /* Disable Normal Link Puls Generation */
+
+ PHY_M_PC_DIS_SCRAMB = 1<<9, /* Disable Scrambler */
+ PHY_M_PC_DIS_FEFI = 1<<8, /* Disable Far End Fault Indic. (FEFI) */
+
+ PHY_M_PC_SH_TP_SEL = 1<<6, /* Shielded Twisted Pair Select */
+ PHY_M_PC_RX_FD_MSK = 3<<2,/* Bit 3.. 2: Rx FIFO Depth Mask */
+};
+
+/***** PHY_MARV_PHY_STAT 16 bit r/o PHY Specific Status Reg *****/
+enum {
+ PHY_M_PS_SPEED_MSK = 3<<14, /* Bit 15..14: Speed Mask */
+ PHY_M_PS_SPEED_1000 = 1<<15, /* 10 = 1000 Mbps */
+ PHY_M_PS_SPEED_100 = 1<<14, /* 01 = 100 Mbps */
+ PHY_M_PS_SPEED_10 = 0, /* 00 = 10 Mbps */
+ PHY_M_PS_FULL_DUP = 1<<13, /* Full Duplex */
+ PHY_M_PS_PAGE_REC = 1<<12, /* Page Received */
+ PHY_M_PS_SPDUP_RES = 1<<11, /* Speed & Duplex Resolved */
+ PHY_M_PS_LINK_UP = 1<<10, /* Link Up */
+ PHY_M_PS_CABLE_MSK = 7<<7, /* Bit 9.. 7: Cable Length Mask */
+ PHY_M_PS_MDI_X_STAT = 1<<6, /* MDI Crossover Stat (1=MDIX) */
+ PHY_M_PS_DOWNS_STAT = 1<<5, /* Downshift Status (1=downsh.) */
+ PHY_M_PS_ENDET_STAT = 1<<4, /* Energy Detect Status (1=act) */
+ PHY_M_PS_TX_P_EN = 1<<3, /* Tx Pause Enabled */
+ PHY_M_PS_RX_P_EN = 1<<2, /* Rx Pause Enabled */
+ PHY_M_PS_POL_REV = 1<<1, /* Polarity Reversed */
+ PHY_M_PS_JABBER = 1<<0, /* Jabber */
+};
+
+#define PHY_M_PS_PAUSE_MSK (PHY_M_PS_TX_P_EN | PHY_M_PS_RX_P_EN)
+
+/* for 10/100 Fast Ethernet PHY (88E3082 only) */
+enum {
+ PHY_M_PS_DTE_DETECT = 1<<15, /* Data Terminal Equipment (DTE) Detected */
+ PHY_M_PS_RES_SPEED = 1<<14, /* Resolved Speed (1=100 Mbps, 0=10 Mbps */
+};
+
+enum {
+ PHY_M_IS_AN_ERROR = 1<<15, /* Auto-Negotiation Error */
+ PHY_M_IS_LSP_CHANGE = 1<<14, /* Link Speed Changed */
+ PHY_M_IS_DUP_CHANGE = 1<<13, /* Duplex Mode Changed */
+ PHY_M_IS_AN_PR = 1<<12, /* Page Received */
+ PHY_M_IS_AN_COMPL = 1<<11, /* Auto-Negotiation Completed */
+ PHY_M_IS_LST_CHANGE = 1<<10, /* Link Status Changed */
+ PHY_M_IS_SYMB_ERROR = 1<<9, /* Symbol Error */
+ PHY_M_IS_FALSE_CARR = 1<<8, /* False Carrier */
+ PHY_M_IS_FIFO_ERROR = 1<<7, /* FIFO Overflow/Underrun Error */
+ PHY_M_IS_MDI_CHANGE = 1<<6, /* MDI Crossover Changed */
+ PHY_M_IS_DOWNSH_DET = 1<<5, /* Downshift Detected */
+ PHY_M_IS_END_CHANGE = 1<<4, /* Energy Detect Changed */
+
+ PHY_M_IS_DTE_CHANGE = 1<<2, /* DTE Power Det. Status Changed */
+ PHY_M_IS_POL_CHANGE = 1<<1, /* Polarity Changed */
+ PHY_M_IS_JABBER = 1<<0, /* Jabber */
+
+ PHY_M_IS_DEF_MSK = PHY_M_IS_AN_ERROR | PHY_M_IS_LSP_CHANGE |
+ PHY_M_IS_LST_CHANGE | PHY_M_IS_FIFO_ERROR,
+
+ PHY_M_IS_AN_MSK = PHY_M_IS_AN_ERROR | PHY_M_IS_AN_COMPL,
+};
+
+/***** PHY_MARV_EXT_CTRL 16 bit r/w Ext. PHY Specific Ctrl *****/
+enum {
+ PHY_M_EC_ENA_BC_EXT = 1<<15, /* Enable Block Carr. Ext. (88E1111 only) */
+ PHY_M_EC_ENA_LIN_LB = 1<<14, /* Enable Line Loopback (88E1111 only) */
+
+ PHY_M_EC_DIS_LINK_P = 1<<12, /* Disable Link Pulses (88E1111 only) */
+ PHY_M_EC_M_DSC_MSK = 3<<10, /* Bit 11..10: Master Downshift Counter */
+ /* (88E1011 only) */
+ PHY_M_EC_S_DSC_MSK = 3<<8, /* Bit 9.. 8: Slave Downshift Counter */
+ /* (88E1011 only) */
+ PHY_M_EC_M_DSC_MSK2 = 7<<9, /* Bit 11.. 9: Master Downshift Counter */
+ /* (88E1111 only) */
+ PHY_M_EC_DOWN_S_ENA = 1<<8, /* Downshift Enable (88E1111 only) */
+ /* !!! Errata in spec. (1 = disable) */
+ PHY_M_EC_RX_TIM_CT = 1<<7, /* RGMII Rx Timing Control*/
+ PHY_M_EC_MAC_S_MSK = 7<<4, /* Bit 6.. 4: Def. MAC interface speed */
+ PHY_M_EC_FIB_AN_ENA = 1<<3, /* Fiber Auto-Neg. Enable (88E1011S only) */
+ PHY_M_EC_DTE_D_ENA = 1<<2, /* DTE Detect Enable (88E1111 only) */
+ PHY_M_EC_TX_TIM_CT = 1<<1, /* RGMII Tx Timing Control */
+ PHY_M_EC_TRANS_DIS = 1<<0, /* Transmitter Disable (88E1111 only) */};
+
+#define PHY_M_EC_M_DSC(x) ((u16)(x)<<10) /* 00=1x; 01=2x; 10=3x; 11=4x */
+#define PHY_M_EC_S_DSC(x) ((u16)(x)<<8) /* 00=dis; 01=1x; 10=2x; 11=3x */
+#define PHY_M_EC_MAC_S(x) ((u16)(x)<<4) /* 01X=0; 110=2.5; 111=25 (MHz) */
+
+#define PHY_M_EC_M_DSC_2(x) ((u16)(x)<<9) /* 000=1x; 001=2x; 010=3x; 011=4x */
+ /* 100=5x; 101=6x; 110=7x; 111=8x */
+enum {
+ MAC_TX_CLK_0_MHZ = 2,
+ MAC_TX_CLK_2_5_MHZ = 6,
+ MAC_TX_CLK_25_MHZ = 7,
+};
+
+/***** PHY_MARV_LED_CTRL 16 bit r/w LED Control Reg *****/
+enum {
+ PHY_M_LEDC_DIS_LED = 1<<15, /* Disable LED */
+ PHY_M_LEDC_PULS_MSK = 7<<12,/* Bit 14..12: Pulse Stretch Mask */
+ PHY_M_LEDC_F_INT = 1<<11, /* Force Interrupt */
+ PHY_M_LEDC_BL_R_MSK = 7<<8,/* Bit 10.. 8: Blink Rate Mask */
+ PHY_M_LEDC_DP_C_LSB = 1<<7, /* Duplex Control (LSB, 88E1111 only) */
+ PHY_M_LEDC_TX_C_LSB = 1<<6, /* Tx Control (LSB, 88E1111 only) */
+ PHY_M_LEDC_LK_C_MSK = 7<<3,/* Bit 5.. 3: Link Control Mask */
+ /* (88E1111 only) */
+};
+#define PHY_M_LED_PULS_DUR(x) (((u16)(x)<<12) & PHY_M_LEDC_PULS_MSK)
+#define PHY_M_LED_BLINK_RT(x) (((u16)(x)<<8) & PHY_M_LEDC_BL_R_MSK)
+
+enum {
+ PHY_M_LEDC_LINK_MSK = 3<<3, /* Bit 4.. 3: Link Control Mask */
+ /* (88E1011 only) */
+ PHY_M_LEDC_DP_CTRL = 1<<2, /* Duplex Control */
+ PHY_M_LEDC_DP_C_MSB = 1<<2, /* Duplex Control (MSB, 88E1111 only) */
+ PHY_M_LEDC_RX_CTRL = 1<<1, /* Rx Activity / Link */
+ PHY_M_LEDC_TX_CTRL = 1<<0, /* Tx Activity / Link */
+ PHY_M_LEDC_TX_C_MSB = 1<<0, /* Tx Control (MSB, 88E1111 only) */
+};
+
+enum {
+ PULS_NO_STR = 0, /* no pulse stretching */
+ PULS_21MS = 1, /* 21 ms to 42 ms */
+ PULS_42MS = 2, /* 42 ms to 84 ms */
+ PULS_84MS = 3, /* 84 ms to 170 ms */
+ PULS_170MS = 4, /* 170 ms to 340 ms */
+ PULS_340MS = 5, /* 340 ms to 670 ms */
+ PULS_670MS = 6, /* 670 ms to 1.3 s */
+ PULS_1300MS = 7, /* 1.3 s to 2.7 s */
+};
+
+
+enum {
+ BLINK_42MS = 0, /* 42 ms */
+ BLINK_84MS = 1, /* 84 ms */
+ BLINK_170MS = 2, /* 170 ms */
+ BLINK_340MS = 3, /* 340 ms */
+ BLINK_670MS = 4, /* 670 ms */
+};
+
+/***** PHY_MARV_LED_OVER 16 bit r/w Manual LED Override Reg *****/
+#define PHY_M_LED_MO_SGMII(x) ((x)<<14) /* Bit 15..14: SGMII AN Timer */
+ /* Bit 13..12: reserved */
+#define PHY_M_LED_MO_DUP(x) ((x)<<10) /* Bit 11..10: Duplex */
+#define PHY_M_LED_MO_10(x) ((x)<<8) /* Bit 9.. 8: Link 10 */
+#define PHY_M_LED_MO_100(x) ((x)<<6) /* Bit 7.. 6: Link 100 */
+#define PHY_M_LED_MO_1000(x) ((x)<<4) /* Bit 5.. 4: Link 1000 */
+#define PHY_M_LED_MO_RX(x) ((x)<<2) /* Bit 3.. 2: Rx */
+#define PHY_M_LED_MO_TX(x) ((x)<<0) /* Bit 1.. 0: Tx */
+
+enum {
+ MO_LED_NORM = 0,
+ MO_LED_BLINK = 1,
+ MO_LED_OFF = 2,
+ MO_LED_ON = 3,
+};
+
+/***** PHY_MARV_EXT_CTRL_2 16 bit r/w Ext. PHY Specific Ctrl 2 *****/
+enum {
+ PHY_M_EC2_FI_IMPED = 1<<6, /* Fiber Input Impedance */
+ PHY_M_EC2_FO_IMPED = 1<<5, /* Fiber Output Impedance */
+ PHY_M_EC2_FO_M_CLK = 1<<4, /* Fiber Mode Clock Enable */
+ PHY_M_EC2_FO_BOOST = 1<<3, /* Fiber Output Boost */
+ PHY_M_EC2_FO_AM_MSK = 7, /* Bit 2.. 0: Fiber Output Amplitude */
+};
+
+/***** PHY_MARV_EXT_P_STAT 16 bit r/w Ext. PHY Specific Status *****/
+enum {
+ PHY_M_FC_AUTO_SEL = 1<<15, /* Fiber/Copper Auto Sel. Dis. */
+ PHY_M_FC_AN_REG_ACC = 1<<14, /* Fiber/Copper AN Reg. Access */
+ PHY_M_FC_RESOLUTION = 1<<13, /* Fiber/Copper Resolution */
+ PHY_M_SER_IF_AN_BP = 1<<12, /* Ser. IF AN Bypass Enable */
+ PHY_M_SER_IF_BP_ST = 1<<11, /* Ser. IF AN Bypass Status */
+ PHY_M_IRQ_POLARITY = 1<<10, /* IRQ polarity */
+ PHY_M_DIS_AUT_MED = 1<<9, /* Disable Aut. Medium Reg. Selection */
+ /* (88E1111 only) */
+ /* Bit 9.. 4: reserved (88E1011 only) */
+ PHY_M_UNDOC1 = 1<<7, /* undocumented bit !! */
+ PHY_M_DTE_POW_STAT = 1<<4, /* DTE Power Status (88E1111 only) */
+ PHY_M_MODE_MASK = 0xf, /* Bit 3.. 0: copy of HWCFG MODE[3:0] */
+};
+
+/***** PHY_MARV_CABLE_DIAG 16 bit r/o Cable Diagnostic Reg *****/
+enum {
+ PHY_M_CABD_ENA_TEST = 1<<15, /* Enable Test (Page 0) */
+ PHY_M_CABD_DIS_WAIT = 1<<15, /* Disable Waiting Period (Page 1) */
+ /* (88E1111 only) */
+ PHY_M_CABD_STAT_MSK = 3<<13, /* Bit 14..13: Status Mask */
+ PHY_M_CABD_AMPL_MSK = 0x1f<<8, /* Bit 12.. 8: Amplitude Mask */
+ /* (88E1111 only) */
+ PHY_M_CABD_DIST_MSK = 0xff, /* Bit 7.. 0: Distance Mask */
+};
+
+/* values for Cable Diagnostic Status (11=fail; 00=OK; 10=open; 01=short) */
+enum {
+ CABD_STAT_NORMAL= 0,
+ CABD_STAT_SHORT = 1,
+ CABD_STAT_OPEN = 2,
+ CABD_STAT_FAIL = 3,
+};
+
+/* for 10/100 Fast Ethernet PHY (88E3082 only) */
+/***** PHY_MARV_FE_LED_PAR 16 bit r/w LED Parallel Select Reg. *****/
+ /* Bit 15..12: reserved (used internally) */
+enum {
+ PHY_M_FELP_LED2_MSK = 0xf<<8, /* Bit 11.. 8: LED2 Mask (LINK) */
+ PHY_M_FELP_LED1_MSK = 0xf<<4, /* Bit 7.. 4: LED1 Mask (ACT) */
+ PHY_M_FELP_LED0_MSK = 0xf, /* Bit 3.. 0: LED0 Mask (SPEED) */
+};
+
+#define PHY_M_FELP_LED2_CTRL(x) (((x)<<8) & PHY_M_FELP_LED2_MSK)
+#define PHY_M_FELP_LED1_CTRL(x) (((x)<<4) & PHY_M_FELP_LED1_MSK)
+#define PHY_M_FELP_LED0_CTRL(x) (((x)<<0) & PHY_M_FELP_LED0_MSK)
+
+enum {
+ LED_PAR_CTRL_COLX = 0x00,
+ LED_PAR_CTRL_ERROR = 0x01,
+ LED_PAR_CTRL_DUPLEX = 0x02,
+ LED_PAR_CTRL_DP_COL = 0x03,
+ LED_PAR_CTRL_SPEED = 0x04,
+ LED_PAR_CTRL_LINK = 0x05,
+ LED_PAR_CTRL_TX = 0x06,
+ LED_PAR_CTRL_RX = 0x07,
+ LED_PAR_CTRL_ACT = 0x08,
+ LED_PAR_CTRL_LNK_RX = 0x09,
+ LED_PAR_CTRL_LNK_AC = 0x0a,
+ LED_PAR_CTRL_ACT_BL = 0x0b,
+ LED_PAR_CTRL_TX_BL = 0x0c,
+ LED_PAR_CTRL_RX_BL = 0x0d,
+ LED_PAR_CTRL_COL_BL = 0x0e,
+ LED_PAR_CTRL_INACT = 0x0f
+};
+
+/*****,PHY_MARV_FE_SPEC_2 16 bit r/w Specific Control Reg. 2 *****/
+enum {
+ PHY_M_FESC_DIS_WAIT = 1<<2, /* Disable TDR Waiting Period */
+ PHY_M_FESC_ENA_MCLK = 1<<1, /* Enable MAC Rx Clock in sleep mode */
+ PHY_M_FESC_SEL_CL_A = 1<<0, /* Select Class A driver (100B-TX) */
+};
+
+
+/***** PHY_MARV_PHY_CTRL (page 3) 16 bit r/w LED Control Reg. *****/
+enum {
+ PHY_M_LEDC_LOS_MSK = 0xf<<12, /* Bit 15..12: LOS LED Ctrl. Mask */
+ PHY_M_LEDC_INIT_MSK = 0xf<<8, /* Bit 11.. 8: INIT LED Ctrl. Mask */
+ PHY_M_LEDC_STA1_MSK = 0xf<<4, /* Bit 7.. 4: STAT1 LED Ctrl. Mask */
+ PHY_M_LEDC_STA0_MSK = 0xf, /* Bit 3.. 0: STAT0 LED Ctrl. Mask */
+};
+
+#define PHY_M_LEDC_LOS_CTRL(x) (((x)<<12) & PHY_M_LEDC_LOS_MSK)
+#define PHY_M_LEDC_INIT_CTRL(x) (((x)<<8) & PHY_M_LEDC_INIT_MSK)
+#define PHY_M_LEDC_STA1_CTRL(x) (((x)<<4) & PHY_M_LEDC_STA1_MSK)
+#define PHY_M_LEDC_STA0_CTRL(x) (((x)<<0) & PHY_M_LEDC_STA0_MSK)
+
+/* GMAC registers */
+/* Port Registers */
+enum {
+ GM_GP_STAT = 0x0000, /* 16 bit r/o General Purpose Status */
+ GM_GP_CTRL = 0x0004, /* 16 bit r/w General Purpose Control */
+ GM_TX_CTRL = 0x0008, /* 16 bit r/w Transmit Control Reg. */
+ GM_RX_CTRL = 0x000c, /* 16 bit r/w Receive Control Reg. */
+ GM_TX_FLOW_CTRL = 0x0010, /* 16 bit r/w Transmit Flow-Control */
+ GM_TX_PARAM = 0x0014, /* 16 bit r/w Transmit Parameter Reg. */
+ GM_SERIAL_MODE = 0x0018, /* 16 bit r/w Serial Mode Register */
+/* Source Address Registers */
+ GM_SRC_ADDR_1L = 0x001c, /* 16 bit r/w Source Address 1 (low) */
+ GM_SRC_ADDR_1M = 0x0020, /* 16 bit r/w Source Address 1 (middle) */
+ GM_SRC_ADDR_1H = 0x0024, /* 16 bit r/w Source Address 1 (high) */
+ GM_SRC_ADDR_2L = 0x0028, /* 16 bit r/w Source Address 2 (low) */
+ GM_SRC_ADDR_2M = 0x002c, /* 16 bit r/w Source Address 2 (middle) */
+ GM_SRC_ADDR_2H = 0x0030, /* 16 bit r/w Source Address 2 (high) */
+
+/* Multicast Address Hash Registers */
+ GM_MC_ADDR_H1 = 0x0034, /* 16 bit r/w Multicast Address Hash 1 */
+ GM_MC_ADDR_H2 = 0x0038, /* 16 bit r/w Multicast Address Hash 2 */
+ GM_MC_ADDR_H3 = 0x003c, /* 16 bit r/w Multicast Address Hash 3 */
+ GM_MC_ADDR_H4 = 0x0040, /* 16 bit r/w Multicast Address Hash 4 */
+
+/* Interrupt Source Registers */
+ GM_TX_IRQ_SRC = 0x0044, /* 16 bit r/o Tx Overflow IRQ Source */
+ GM_RX_IRQ_SRC = 0x0048, /* 16 bit r/o Rx Overflow IRQ Source */
+ GM_TR_IRQ_SRC = 0x004c, /* 16 bit r/o Tx/Rx Over. IRQ Source */
+
+/* Interrupt Mask Registers */
+ GM_TX_IRQ_MSK = 0x0050, /* 16 bit r/w Tx Overflow IRQ Mask */
+ GM_RX_IRQ_MSK = 0x0054, /* 16 bit r/w Rx Overflow IRQ Mask */
+ GM_TR_IRQ_MSK = 0x0058, /* 16 bit r/w Tx/Rx Over. IRQ Mask */
+
+/* Serial Management Interface (SMI) Registers */
+ GM_SMI_CTRL = 0x0080, /* 16 bit r/w SMI Control Register */
+ GM_SMI_DATA = 0x0084, /* 16 bit r/w SMI Data Register */
+ GM_PHY_ADDR = 0x0088, /* 16 bit r/w GPHY Address Register */
+};
+
+/* MIB Counters */
+#define GM_MIB_CNT_BASE 0x0100 /* Base Address of MIB Counters */
+#define GM_MIB_CNT_SIZE 44 /* Number of MIB Counters */
+
+/*
+ * MIB Counters base address definitions (low word) -
+ * use offset 4 for access to high word (32 bit r/o)
+ */
+enum {
+ GM_RXF_UC_OK = GM_MIB_CNT_BASE + 0, /* Unicast Frames Received OK */
+ GM_RXF_BC_OK = GM_MIB_CNT_BASE + 8, /* Broadcast Frames Received OK */
+ GM_RXF_MPAUSE = GM_MIB_CNT_BASE + 16, /* Pause MAC Ctrl Frames Received */
+ GM_RXF_MC_OK = GM_MIB_CNT_BASE + 24, /* Multicast Frames Received OK */
+ GM_RXF_FCS_ERR = GM_MIB_CNT_BASE + 32, /* Rx Frame Check Seq. Error */
+ /* GM_MIB_CNT_BASE + 40: reserved */
+ GM_RXO_OK_LO = GM_MIB_CNT_BASE + 48, /* Octets Received OK Low */
+ GM_RXO_OK_HI = GM_MIB_CNT_BASE + 56, /* Octets Received OK High */
+ GM_RXO_ERR_LO = GM_MIB_CNT_BASE + 64, /* Octets Received Invalid Low */
+ GM_RXO_ERR_HI = GM_MIB_CNT_BASE + 72, /* Octets Received Invalid High */
+ GM_RXF_SHT = GM_MIB_CNT_BASE + 80, /* Frames <64 Byte Received OK */
+ GM_RXE_FRAG = GM_MIB_CNT_BASE + 88, /* Frames <64 Byte Received with FCS Err */
+ GM_RXF_64B = GM_MIB_CNT_BASE + 96, /* 64 Byte Rx Frame */
+ GM_RXF_127B = GM_MIB_CNT_BASE + 104, /* 65-127 Byte Rx Frame */
+ GM_RXF_255B = GM_MIB_CNT_BASE + 112, /* 128-255 Byte Rx Frame */
+ GM_RXF_511B = GM_MIB_CNT_BASE + 120, /* 256-511 Byte Rx Frame */
+ GM_RXF_1023B = GM_MIB_CNT_BASE + 128, /* 512-1023 Byte Rx Frame */
+ GM_RXF_1518B = GM_MIB_CNT_BASE + 136, /* 1024-1518 Byte Rx Frame */
+ GM_RXF_MAX_SZ = GM_MIB_CNT_BASE + 144, /* 1519-MaxSize Byte Rx Frame */
+ GM_RXF_LNG_ERR = GM_MIB_CNT_BASE + 152, /* Rx Frame too Long Error */
+ GM_RXF_JAB_PKT = GM_MIB_CNT_BASE + 160, /* Rx Jabber Packet Frame */
+ /* GM_MIB_CNT_BASE + 168: reserved */
+ GM_RXE_FIFO_OV = GM_MIB_CNT_BASE + 176, /* Rx FIFO overflow Event */
+ /* GM_MIB_CNT_BASE + 184: reserved */
+ GM_TXF_UC_OK = GM_MIB_CNT_BASE + 192, /* Unicast Frames Xmitted OK */
+ GM_TXF_BC_OK = GM_MIB_CNT_BASE + 200, /* Broadcast Frames Xmitted OK */
+ GM_TXF_MPAUSE = GM_MIB_CNT_BASE + 208, /* Pause MAC Ctrl Frames Xmitted */
+ GM_TXF_MC_OK = GM_MIB_CNT_BASE + 216, /* Multicast Frames Xmitted OK */
+ GM_TXO_OK_LO = GM_MIB_CNT_BASE + 224, /* Octets Transmitted OK Low */
+ GM_TXO_OK_HI = GM_MIB_CNT_BASE + 232, /* Octets Transmitted OK High */
+ GM_TXF_64B = GM_MIB_CNT_BASE + 240, /* 64 Byte Tx Frame */
+ GM_TXF_127B = GM_MIB_CNT_BASE + 248, /* 65-127 Byte Tx Frame */
+ GM_TXF_255B = GM_MIB_CNT_BASE + 256, /* 128-255 Byte Tx Frame */
+ GM_TXF_511B = GM_MIB_CNT_BASE + 264, /* 256-511 Byte Tx Frame */
+ GM_TXF_1023B = GM_MIB_CNT_BASE + 272, /* 512-1023 Byte Tx Frame */
+ GM_TXF_1518B = GM_MIB_CNT_BASE + 280, /* 1024-1518 Byte Tx Frame */
+ GM_TXF_MAX_SZ = GM_MIB_CNT_BASE + 288, /* 1519-MaxSize Byte Tx Frame */
+
+ GM_TXF_COL = GM_MIB_CNT_BASE + 304, /* Tx Collision */
+ GM_TXF_LAT_COL = GM_MIB_CNT_BASE + 312, /* Tx Late Collision */
+ GM_TXF_ABO_COL = GM_MIB_CNT_BASE + 320, /* Tx aborted due to Exces. Col. */
+ GM_TXF_MUL_COL = GM_MIB_CNT_BASE + 328, /* Tx Multiple Collision */
+ GM_TXF_SNG_COL = GM_MIB_CNT_BASE + 336, /* Tx Single Collision */
+ GM_TXE_FIFO_UR = GM_MIB_CNT_BASE + 344, /* Tx FIFO Underrun Event */
+};
+
+/* GMAC Bit Definitions */
+/* GM_GP_STAT 16 bit r/o General Purpose Status Register */
+enum {
+ GM_GPSR_SPEED = 1<<15, /* Bit 15: Port Speed (1 = 100 Mbps) */
+ GM_GPSR_DUPLEX = 1<<14, /* Bit 14: Duplex Mode (1 = Full) */
+ GM_GPSR_FC_TX_DIS = 1<<13, /* Bit 13: Tx Flow-Control Mode Disabled */
+ GM_GPSR_LINK_UP = 1<<12, /* Bit 12: Link Up Status */
+ GM_GPSR_PAUSE = 1<<11, /* Bit 11: Pause State */
+ GM_GPSR_TX_ACTIVE = 1<<10, /* Bit 10: Tx in Progress */
+ GM_GPSR_EXC_COL = 1<<9, /* Bit 9: Excessive Collisions Occurred */
+ GM_GPSR_LAT_COL = 1<<8, /* Bit 8: Late Collisions Occurred */
+
+ GM_GPSR_PHY_ST_CH = 1<<5, /* Bit 5: PHY Status Change */
+ GM_GPSR_GIG_SPEED = 1<<4, /* Bit 4: Gigabit Speed (1 = 1000 Mbps) */
+ GM_GPSR_PART_MODE = 1<<3, /* Bit 3: Partition mode */
+ GM_GPSR_FC_RX_DIS = 1<<2, /* Bit 2: Rx Flow-Control Mode Disabled */
+ GM_GPSR_PROM_EN = 1<<1, /* Bit 1: Promiscuous Mode Enabled */
+};
+
+/* GM_GP_CTRL 16 bit r/w General Purpose Control Register */
+enum {
+ GM_GPCR_PROM_ENA = 1<<14, /* Bit 14: Enable Promiscuous Mode */
+ GM_GPCR_FC_TX_DIS = 1<<13, /* Bit 13: Disable Tx Flow-Control Mode */
+ GM_GPCR_TX_ENA = 1<<12, /* Bit 12: Enable Transmit */
+ GM_GPCR_RX_ENA = 1<<11, /* Bit 11: Enable Receive */
+ GM_GPCR_BURST_ENA = 1<<10, /* Bit 10: Enable Burst Mode */
+ GM_GPCR_LOOP_ENA = 1<<9, /* Bit 9: Enable MAC Loopback Mode */
+ GM_GPCR_PART_ENA = 1<<8, /* Bit 8: Enable Partition Mode */
+ GM_GPCR_GIGS_ENA = 1<<7, /* Bit 7: Gigabit Speed (1000 Mbps) */
+ GM_GPCR_FL_PASS = 1<<6, /* Bit 6: Force Link Pass */
+ GM_GPCR_DUP_FULL = 1<<5, /* Bit 5: Full Duplex Mode */
+ GM_GPCR_FC_RX_DIS = 1<<4, /* Bit 4: Disable Rx Flow-Control Mode */
+ GM_GPCR_SPEED_100 = 1<<3, /* Bit 3: Port Speed 100 Mbps */
+ GM_GPCR_AU_DUP_DIS = 1<<2, /* Bit 2: Disable Auto-Update Duplex */
+ GM_GPCR_AU_FCT_DIS = 1<<1, /* Bit 1: Disable Auto-Update Flow-C. */
+ GM_GPCR_AU_SPD_DIS = 1<<0, /* Bit 0: Disable Auto-Update Speed */
+};
+
+#define GM_GPCR_SPEED_1000 (GM_GPCR_GIGS_ENA | GM_GPCR_SPEED_100)
+#define GM_GPCR_AU_ALL_DIS (GM_GPCR_AU_DUP_DIS | GM_GPCR_AU_FCT_DIS|GM_GPCR_AU_SPD_DIS)
+
+/* GM_TX_CTRL 16 bit r/w Transmit Control Register */
+enum {
+ GM_TXCR_FORCE_JAM = 1<<15, /* Bit 15: Force Jam / Flow-Control */
+ GM_TXCR_CRC_DIS = 1<<14, /* Bit 14: Disable insertion of CRC */
+ GM_TXCR_PAD_DIS = 1<<13, /* Bit 13: Disable padding of packets */
+ GM_TXCR_COL_THR_MSK = 7<<10, /* Bit 12..10: Collision Threshold */
+};
+
+#define TX_COL_THR(x) (((x)<<10) & GM_TXCR_COL_THR_MSK)
+#define TX_COL_DEF 0x04 /* late collision after 64 byte */
+
+/* GM_RX_CTRL 16 bit r/w Receive Control Register */
+enum {
+ GM_RXCR_UCF_ENA = 1<<15, /* Bit 15: Enable Unicast filtering */
+ GM_RXCR_MCF_ENA = 1<<14, /* Bit 14: Enable Multicast filtering */
+ GM_RXCR_CRC_DIS = 1<<13, /* Bit 13: Remove 4-byte CRC */
+ GM_RXCR_PASS_FC = 1<<12, /* Bit 12: Pass FC packets to FIFO */
+};
+
+/* GM_TX_PARAM 16 bit r/w Transmit Parameter Register */
+enum {
+ GM_TXPA_JAMLEN_MSK = 0x03<<14, /* Bit 15..14: Jam Length */
+ GM_TXPA_JAMIPG_MSK = 0x1f<<9, /* Bit 13..9: Jam IPG */
+ GM_TXPA_JAMDAT_MSK = 0x1f<<4, /* Bit 8..4: IPG Jam to Data */
+
+ TX_JAM_LEN_DEF = 0x03,
+ TX_JAM_IPG_DEF = 0x0b,
+ TX_IPG_JAM_DEF = 0x1c,
+};
+
+#define TX_JAM_LEN_VAL(x) (((x)<<14) & GM_TXPA_JAMLEN_MSK)
+#define TX_JAM_IPG_VAL(x) (((x)<<9) & GM_TXPA_JAMIPG_MSK)
+#define TX_IPG_JAM_DATA(x) (((x)<<4) & GM_TXPA_JAMDAT_MSK)
+
+
+/* GM_SERIAL_MODE 16 bit r/w Serial Mode Register */
+enum {
+ GM_SMOD_DATABL_MSK = 0x1f<<11, /* Bit 15..11: Data Blinder (r/o) */
+ GM_SMOD_LIMIT_4 = 1<<10, /* Bit 10: 4 consecutive Tx trials */
+ GM_SMOD_VLAN_ENA = 1<<9, /* Bit 9: Enable VLAN (Max. Frame Len) */
+ GM_SMOD_JUMBO_ENA = 1<<8, /* Bit 8: Enable Jumbo (Max. Frame Len) */
+ GM_SMOD_IPG_MSK = 0x1f /* Bit 4..0: Inter-Packet Gap (IPG) */
+};
+
+#define DATA_BLIND_VAL(x) (((x)<<11) & GM_SMOD_DATABL_MSK)
+#define DATA_BLIND_DEF 0x04
+
+#define IPG_DATA_VAL(x) (x & GM_SMOD_IPG_MSK)
+#define IPG_DATA_DEF 0x1e
+
+/* GM_SMI_CTRL 16 bit r/w SMI Control Register */
+enum {
+ GM_SMI_CT_PHY_A_MSK = 0x1f<<11, /* Bit 15..11: PHY Device Address */
+ GM_SMI_CT_REG_A_MSK = 0x1f<<6, /* Bit 10.. 6: PHY Register Address */
+ GM_SMI_CT_OP_RD = 1<<5, /* Bit 5: OpCode Read (0=Write)*/
+ GM_SMI_CT_RD_VAL = 1<<4, /* Bit 4: Read Valid (Read completed) */
+ GM_SMI_CT_BUSY = 1<<3, /* Bit 3: Busy (Operation in progress) */
+};
+
+#define GM_SMI_CT_PHY_AD(x) (((x)<<11) & GM_SMI_CT_PHY_A_MSK)
+#define GM_SMI_CT_REG_AD(x) (((x)<<6) & GM_SMI_CT_REG_A_MSK)
+
+/* GM_PHY_ADDR 16 bit r/w GPHY Address Register */
+enum {
+ GM_PAR_MIB_CLR = 1<<5, /* Bit 5: Set MIB Clear Counter Mode */
+ GM_PAR_MIB_TST = 1<<4, /* Bit 4: MIB Load Counter (Test Mode) */
+};
+
+/* Receive Frame Status Encoding */
+enum {
+ GMR_FS_LEN = 0xffff<<16, /* Bit 31..16: Rx Frame Length */
+ GMR_FS_LEN_SHIFT = 16,
+ GMR_FS_VLAN = 1<<13, /* Bit 13: VLAN Packet */
+ GMR_FS_JABBER = 1<<12, /* Bit 12: Jabber Packet */
+ GMR_FS_UN_SIZE = 1<<11, /* Bit 11: Undersize Packet */
+ GMR_FS_MC = 1<<10, /* Bit 10: Multicast Packet */
+ GMR_FS_BC = 1<<9, /* Bit 9: Broadcast Packet */
+ GMR_FS_RX_OK = 1<<8, /* Bit 8: Receive OK (Good Packet) */
+ GMR_FS_GOOD_FC = 1<<7, /* Bit 7: Good Flow-Control Packet */
+ GMR_FS_BAD_FC = 1<<6, /* Bit 6: Bad Flow-Control Packet */
+ GMR_FS_MII_ERR = 1<<5, /* Bit 5: MII Error */
+ GMR_FS_LONG_ERR = 1<<4, /* Bit 4: Too Long Packet */
+ GMR_FS_FRAGMENT = 1<<3, /* Bit 3: Fragment */
+
+ GMR_FS_CRC_ERR = 1<<1, /* Bit 1: CRC Error */
+ GMR_FS_RX_FF_OV = 1<<0, /* Bit 0: Rx FIFO Overflow */
+
+/*
+ * GMR_FS_ANY_ERR (analogous to XMR_FS_ANY_ERR)
+ */
+ GMR_FS_ANY_ERR = GMR_FS_CRC_ERR | GMR_FS_LONG_ERR |
+ GMR_FS_MII_ERR | GMR_FS_BAD_FC | GMR_FS_GOOD_FC |
+ GMR_FS_JABBER,
+/* Rx GMAC FIFO Flush Mask (default) */
+ RX_FF_FL_DEF_MSK = GMR_FS_CRC_ERR | GMR_FS_RX_FF_OV |GMR_FS_MII_ERR |
+ GMR_FS_BAD_FC | GMR_FS_UN_SIZE | GMR_FS_JABBER,
+};
+
+/* RX_GMF_CTRL_T 32 bit Rx GMAC FIFO Control/Test */
+enum {
+ GMF_WP_TST_ON = 1<<14, /* Write Pointer Test On */
+ GMF_WP_TST_OFF = 1<<13, /* Write Pointer Test Off */
+ GMF_WP_STEP = 1<<12, /* Write Pointer Step/Increment */
+
+ GMF_RP_TST_ON = 1<<10, /* Read Pointer Test On */
+ GMF_RP_TST_OFF = 1<<9, /* Read Pointer Test Off */
+ GMF_RP_STEP = 1<<8, /* Read Pointer Step/Increment */
+ GMF_RX_F_FL_ON = 1<<7, /* Rx FIFO Flush Mode On */
+ GMF_RX_F_FL_OFF = 1<<6, /* Rx FIFO Flush Mode Off */
+ GMF_CLI_RX_FO = 1<<5, /* Clear IRQ Rx FIFO Overrun */
+ GMF_CLI_RX_FC = 1<<4, /* Clear IRQ Rx Frame Complete */
+ GMF_OPER_ON = 1<<3, /* Operational Mode On */
+ GMF_OPER_OFF = 1<<2, /* Operational Mode Off */
+ GMF_RST_CLR = 1<<1, /* Clear GMAC FIFO Reset */
+ GMF_RST_SET = 1<<0, /* Set GMAC FIFO Reset */
+
+ RX_GMF_FL_THR_DEF = 0xa, /* flush threshold (default) */
+};
+
+
+/* TX_GMF_CTRL_T 32 bit Tx GMAC FIFO Control/Test */
+enum {
+ GMF_WSP_TST_ON = 1<<18, /* Write Shadow Pointer Test On */
+ GMF_WSP_TST_OFF = 1<<17, /* Write Shadow Pointer Test Off */
+ GMF_WSP_STEP = 1<<16, /* Write Shadow Pointer Step/Increment */
+
+ GMF_CLI_TX_FU = 1<<6, /* Clear IRQ Tx FIFO Underrun */
+ GMF_CLI_TX_FC = 1<<5, /* Clear IRQ Tx Frame Complete */
+ GMF_CLI_TX_PE = 1<<4, /* Clear IRQ Tx Parity Error */
+};
+
+/* GMAC_TI_ST_CTRL 8 bit Time Stamp Timer Ctrl Reg (YUKON only) */
+enum {
+ GMT_ST_START = 1<<2, /* Start Time Stamp Timer */
+ GMT_ST_STOP = 1<<1, /* Stop Time Stamp Timer */
+ GMT_ST_CLR_IRQ = 1<<0, /* Clear Time Stamp Timer IRQ */
+};
+
+/* GMAC_CTRL 32 bit GMAC Control Reg (YUKON only) */
+enum {
+ GMC_H_BURST_ON = 1<<7, /* Half Duplex Burst Mode On */
+ GMC_H_BURST_OFF = 1<<6, /* Half Duplex Burst Mode Off */
+ GMC_F_LOOPB_ON = 1<<5, /* FIFO Loopback On */
+ GMC_F_LOOPB_OFF = 1<<4, /* FIFO Loopback Off */
+ GMC_PAUSE_ON = 1<<3, /* Pause On */
+ GMC_PAUSE_OFF = 1<<2, /* Pause Off */
+ GMC_RST_CLR = 1<<1, /* Clear GMAC Reset */
+ GMC_RST_SET = 1<<0, /* Set GMAC Reset */
+};
+
+/* GPHY_CTRL 32 bit GPHY Control Reg (YUKON only) */
+enum {
+ GPC_SEL_BDT = 1<<28, /* Select Bi-Dir. Transfer for MDC/MDIO */
+ GPC_INT_POL_HI = 1<<27, /* IRQ Polarity is Active HIGH */
+ GPC_75_OHM = 1<<26, /* Use 75 Ohm Termination instead of 50 */
+ GPC_DIS_FC = 1<<25, /* Disable Automatic Fiber/Copper Detection */
+ GPC_DIS_SLEEP = 1<<24, /* Disable Energy Detect */
+ GPC_HWCFG_M_3 = 1<<23, /* HWCFG_MODE[3] */
+ GPC_HWCFG_M_2 = 1<<22, /* HWCFG_MODE[2] */
+ GPC_HWCFG_M_1 = 1<<21, /* HWCFG_MODE[1] */
+ GPC_HWCFG_M_0 = 1<<20, /* HWCFG_MODE[0] */
+ GPC_ANEG_0 = 1<<19, /* ANEG[0] */
+ GPC_ENA_XC = 1<<18, /* Enable MDI crossover */
+ GPC_DIS_125 = 1<<17, /* Disable 125 MHz clock */
+ GPC_ANEG_3 = 1<<16, /* ANEG[3] */
+ GPC_ANEG_2 = 1<<15, /* ANEG[2] */
+ GPC_ANEG_1 = 1<<14, /* ANEG[1] */
+ GPC_ENA_PAUSE = 1<<13, /* Enable Pause (SYM_OR_REM) */
+ GPC_PHYADDR_4 = 1<<12, /* Bit 4 of Phy Addr */
+ GPC_PHYADDR_3 = 1<<11, /* Bit 3 of Phy Addr */
+ GPC_PHYADDR_2 = 1<<10, /* Bit 2 of Phy Addr */
+ GPC_PHYADDR_1 = 1<<9, /* Bit 1 of Phy Addr */
+ GPC_PHYADDR_0 = 1<<8, /* Bit 0 of Phy Addr */
+ /* Bits 7..2: reserved */
+ GPC_RST_CLR = 1<<1, /* Clear GPHY Reset */
+ GPC_RST_SET = 1<<0, /* Set GPHY Reset */
+};
+
+#define GPC_HWCFG_GMII_COP (GPC_HWCFG_M_3|GPC_HWCFG_M_2 | GPC_HWCFG_M_1 | GPC_HWCFG_M_0)
+#define GPC_HWCFG_GMII_FIB (GPC_HWCFG_M_2 | GPC_HWCFG_M_1 | GPC_HWCFG_M_0)
+#define GPC_ANEG_ADV_ALL_M (GPC_ANEG_3 | GPC_ANEG_2 | GPC_ANEG_1 | GPC_ANEG_0)
+
+/* forced speed and duplex mode (don't mix with other ANEG bits) */
+#define GPC_FRC10MBIT_HALF 0
+#define GPC_FRC10MBIT_FULL GPC_ANEG_0
+#define GPC_FRC100MBIT_HALF GPC_ANEG_1
+#define GPC_FRC100MBIT_FULL (GPC_ANEG_0 | GPC_ANEG_1)
+
+/* auto-negotiation with limited advertised speeds */
+/* mix only with master/slave settings (for copper) */
+#define GPC_ADV_1000_HALF GPC_ANEG_2
+#define GPC_ADV_1000_FULL GPC_ANEG_3
+#define GPC_ADV_ALL (GPC_ANEG_2 | GPC_ANEG_3)
+
+/* master/slave settings */
+/* only for copper with 1000 Mbps */
+#define GPC_FORCE_MASTER 0
+#define GPC_FORCE_SLAVE GPC_ANEG_0
+#define GPC_PREF_MASTER GPC_ANEG_1
+#define GPC_PREF_SLAVE (GPC_ANEG_1 | GPC_ANEG_0)
+
+/* GMAC_IRQ_SRC 8 bit GMAC Interrupt Source Reg (YUKON only) */
+/* GMAC_IRQ_MSK 8 bit GMAC Interrupt Mask Reg (YUKON only) */
+enum {
+ GM_IS_TX_CO_OV = 1<<5, /* Transmit Counter Overflow IRQ */
+ GM_IS_RX_CO_OV = 1<<4, /* Receive Counter Overflow IRQ */
+ GM_IS_TX_FF_UR = 1<<3, /* Transmit FIFO Underrun */
+ GM_IS_TX_COMPL = 1<<2, /* Frame Transmission Complete */
+ GM_IS_RX_FF_OR = 1<<1, /* Receive FIFO Overrun */
+ GM_IS_RX_COMPL = 1<<0, /* Frame Reception Complete */
+
+#define GMAC_DEF_MSK (GM_IS_RX_FF_OR | GM_IS_TX_FF_UR)
+
+/* GMAC_LINK_CTRL 16 bit GMAC Link Control Reg (YUKON only) */
+ /* Bits 15.. 2: reserved */
+ GMLC_RST_CLR = 1<<1, /* Clear GMAC Link Reset */
+ GMLC_RST_SET = 1<<0, /* Set GMAC Link Reset */
+
+
+/* WOL_CTRL_STAT 16 bit WOL Control/Status Reg */
+ WOL_CTL_LINK_CHG_OCC = 1<<15,
+ WOL_CTL_MAGIC_PKT_OCC = 1<<14,
+ WOL_CTL_PATTERN_OCC = 1<<13,
+ WOL_CTL_CLEAR_RESULT = 1<<12,
+ WOL_CTL_ENA_PME_ON_LINK_CHG = 1<<11,
+ WOL_CTL_DIS_PME_ON_LINK_CHG = 1<<10,
+ WOL_CTL_ENA_PME_ON_MAGIC_PKT = 1<<9,
+ WOL_CTL_DIS_PME_ON_MAGIC_PKT = 1<<8,
+ WOL_CTL_ENA_PME_ON_PATTERN = 1<<7,
+ WOL_CTL_DIS_PME_ON_PATTERN = 1<<6,
+ WOL_CTL_ENA_LINK_CHG_UNIT = 1<<5,
+ WOL_CTL_DIS_LINK_CHG_UNIT = 1<<4,
+ WOL_CTL_ENA_MAGIC_PKT_UNIT = 1<<3,
+ WOL_CTL_DIS_MAGIC_PKT_UNIT = 1<<2,
+ WOL_CTL_ENA_PATTERN_UNIT = 1<<1,
+ WOL_CTL_DIS_PATTERN_UNIT = 1<<0,
+};
+
+#define WOL_CTL_DEFAULT \
+ (WOL_CTL_DIS_PME_ON_LINK_CHG | \
+ WOL_CTL_DIS_PME_ON_PATTERN | \
+ WOL_CTL_DIS_PME_ON_MAGIC_PKT | \
+ WOL_CTL_DIS_LINK_CHG_UNIT | \
+ WOL_CTL_DIS_PATTERN_UNIT | \
+ WOL_CTL_DIS_MAGIC_PKT_UNIT)
+
+/* WOL_MATCH_CTL 8 bit WOL Match Control Reg */
+#define WOL_CTL_PATT_ENA(x) (1 << (x))
+
+
+/* XMAC II registers */
+enum {
+ XM_MMU_CMD = 0x0000, /* 16 bit r/w MMU Command Register */
+ XM_POFF = 0x0008, /* 32 bit r/w Packet Offset Register */
+ XM_BURST = 0x000c, /* 32 bit r/w Burst Register for half duplex*/
+ XM_1L_VLAN_TAG = 0x0010, /* 16 bit r/w One Level VLAN Tag ID */
+ XM_2L_VLAN_TAG = 0x0014, /* 16 bit r/w Two Level VLAN Tag ID */
+ XM_TX_CMD = 0x0020, /* 16 bit r/w Transmit Command Register */
+ XM_TX_RT_LIM = 0x0024, /* 16 bit r/w Transmit Retry Limit Register */
+ XM_TX_STIME = 0x0028, /* 16 bit r/w Transmit Slottime Register */
+ XM_TX_IPG = 0x002c, /* 16 bit r/w Transmit Inter Packet Gap */
+ XM_RX_CMD = 0x0030, /* 16 bit r/w Receive Command Register */
+ XM_PHY_ADDR = 0x0034, /* 16 bit r/w PHY Address Register */
+ XM_PHY_DATA = 0x0038, /* 16 bit r/w PHY Data Register */
+ XM_GP_PORT = 0x0040, /* 32 bit r/w General Purpose Port Register */
+ XM_IMSK = 0x0044, /* 16 bit r/w Interrupt Mask Register */
+ XM_ISRC = 0x0048, /* 16 bit r/o Interrupt Status Register */
+ XM_HW_CFG = 0x004c, /* 16 bit r/w Hardware Config Register */
+ XM_TX_LO_WM = 0x0060, /* 16 bit r/w Tx FIFO Low Water Mark */
+ XM_TX_HI_WM = 0x0062, /* 16 bit r/w Tx FIFO High Water Mark */
+ XM_TX_THR = 0x0064, /* 16 bit r/w Tx Request Threshold */
+ XM_HT_THR = 0x0066, /* 16 bit r/w Host Request Threshold */
+ XM_PAUSE_DA = 0x0068, /* NA reg r/w Pause Destination Address */
+ XM_CTL_PARA = 0x0070, /* 32 bit r/w Control Parameter Register */
+ XM_MAC_OPCODE = 0x0074, /* 16 bit r/w Opcode for MAC control frames */
+ XM_MAC_PTIME = 0x0076, /* 16 bit r/w Pause time for MAC ctrl frames*/
+ XM_TX_STAT = 0x0078, /* 32 bit r/o Tx Status LIFO Register */
+
+ XM_EXM_START = 0x0080, /* r/w Start Address of the EXM Regs */
+#define XM_EXM(reg) (XM_EXM_START + ((reg) << 3))
+};
+
+enum {
+ XM_SRC_CHK = 0x0100, /* NA reg r/w Source Check Address Register */
+ XM_SA = 0x0108, /* NA reg r/w Station Address Register */
+ XM_HSM = 0x0110, /* 64 bit r/w Hash Match Address Registers */
+ XM_RX_LO_WM = 0x0118, /* 16 bit r/w Receive Low Water Mark */
+ XM_RX_HI_WM = 0x011a, /* 16 bit r/w Receive High Water Mark */
+ XM_RX_THR = 0x011c, /* 32 bit r/w Receive Request Threshold */
+ XM_DEV_ID = 0x0120, /* 32 bit r/o Device ID Register */
+ XM_MODE = 0x0124, /* 32 bit r/w Mode Register */
+ XM_LSA = 0x0128, /* NA reg r/o Last Source Register */
+ XM_TS_READ = 0x0130, /* 32 bit r/o Time Stamp Read Register */
+ XM_TS_LOAD = 0x0134, /* 32 bit r/o Time Stamp Load Value */
+ XM_STAT_CMD = 0x0200, /* 16 bit r/w Statistics Command Register */
+ XM_RX_CNT_EV = 0x0204, /* 32 bit r/o Rx Counter Event Register */
+ XM_TX_CNT_EV = 0x0208, /* 32 bit r/o Tx Counter Event Register */
+ XM_RX_EV_MSK = 0x020c, /* 32 bit r/w Rx Counter Event Mask */
+ XM_TX_EV_MSK = 0x0210, /* 32 bit r/w Tx Counter Event Mask */
+ XM_TXF_OK = 0x0280, /* 32 bit r/o Frames Transmitted OK Conuter */
+ XM_TXO_OK_HI = 0x0284, /* 32 bit r/o Octets Transmitted OK High Cnt*/
+ XM_TXO_OK_LO = 0x0288, /* 32 bit r/o Octets Transmitted OK Low Cnt */
+ XM_TXF_BC_OK = 0x028c, /* 32 bit r/o Broadcast Frames Xmitted OK */
+ XM_TXF_MC_OK = 0x0290, /* 32 bit r/o Multicast Frames Xmitted OK */
+ XM_TXF_UC_OK = 0x0294, /* 32 bit r/o Unicast Frames Xmitted OK */
+ XM_TXF_LONG = 0x0298, /* 32 bit r/o Tx Long Frame Counter */
+ XM_TXE_BURST = 0x029c, /* 32 bit r/o Tx Burst Event Counter */
+ XM_TXF_MPAUSE = 0x02a0, /* 32 bit r/o Tx Pause MAC Ctrl Frame Cnt */
+ XM_TXF_MCTRL = 0x02a4, /* 32 bit r/o Tx MAC Ctrl Frame Counter */
+ XM_TXF_SNG_COL = 0x02a8, /* 32 bit r/o Tx Single Collision Counter */
+ XM_TXF_MUL_COL = 0x02ac, /* 32 bit r/o Tx Multiple Collision Counter */
+ XM_TXF_ABO_COL = 0x02b0, /* 32 bit r/o Tx aborted due to Exces. Col. */
+ XM_TXF_LAT_COL = 0x02b4, /* 32 bit r/o Tx Late Collision Counter */
+ XM_TXF_DEF = 0x02b8, /* 32 bit r/o Tx Deferred Frame Counter */
+ XM_TXF_EX_DEF = 0x02bc, /* 32 bit r/o Tx Excessive Deferall Counter */
+ XM_TXE_FIFO_UR = 0x02c0, /* 32 bit r/o Tx FIFO Underrun Event Cnt */
+ XM_TXE_CS_ERR = 0x02c4, /* 32 bit r/o Tx Carrier Sense Error Cnt */
+ XM_TXP_UTIL = 0x02c8, /* 32 bit r/o Tx Utilization in % */
+ XM_TXF_64B = 0x02d0, /* 32 bit r/o 64 Byte Tx Frame Counter */
+ XM_TXF_127B = 0x02d4, /* 32 bit r/o 65-127 Byte Tx Frame Counter */
+ XM_TXF_255B = 0x02d8, /* 32 bit r/o 128-255 Byte Tx Frame Counter */
+ XM_TXF_511B = 0x02dc, /* 32 bit r/o 256-511 Byte Tx Frame Counter */
+ XM_TXF_1023B = 0x02e0, /* 32 bit r/o 512-1023 Byte Tx Frame Counter*/
+ XM_TXF_MAX_SZ = 0x02e4, /* 32 bit r/o 1024-MaxSize Byte Tx Frame Cnt*/
+ XM_RXF_OK = 0x0300, /* 32 bit r/o Frames Received OK */
+ XM_RXO_OK_HI = 0x0304, /* 32 bit r/o Octets Received OK High Cnt */
+ XM_RXO_OK_LO = 0x0308, /* 32 bit r/o Octets Received OK Low Counter*/
+ XM_RXF_BC_OK = 0x030c, /* 32 bit r/o Broadcast Frames Received OK */
+ XM_RXF_MC_OK = 0x0310, /* 32 bit r/o Multicast Frames Received OK */
+ XM_RXF_UC_OK = 0x0314, /* 32 bit r/o Unicast Frames Received OK */
+ XM_RXF_MPAUSE = 0x0318, /* 32 bit r/o Rx Pause MAC Ctrl Frame Cnt */
+ XM_RXF_MCTRL = 0x031c, /* 32 bit r/o Rx MAC Ctrl Frame Counter */
+ XM_RXF_INV_MP = 0x0320, /* 32 bit r/o Rx invalid Pause Frame Cnt */
+ XM_RXF_INV_MOC = 0x0324, /* 32 bit r/o Rx Frames with inv. MAC Opcode*/
+ XM_RXE_BURST = 0x0328, /* 32 bit r/o Rx Burst Event Counter */
+ XM_RXE_FMISS = 0x032c, /* 32 bit r/o Rx Missed Frames Event Cnt */
+ XM_RXF_FRA_ERR = 0x0330, /* 32 bit r/o Rx Framing Error Counter */
+ XM_RXE_FIFO_OV = 0x0334, /* 32 bit r/o Rx FIFO overflow Event Cnt */
+ XM_RXF_JAB_PKT = 0x0338, /* 32 bit r/o Rx Jabber Packet Frame Cnt */
+ XM_RXE_CAR_ERR = 0x033c, /* 32 bit r/o Rx Carrier Event Error Cnt */
+ XM_RXF_LEN_ERR = 0x0340, /* 32 bit r/o Rx in Range Length Error */
+ XM_RXE_SYM_ERR = 0x0344, /* 32 bit r/o Rx Symbol Error Counter */
+ XM_RXE_SHT_ERR = 0x0348, /* 32 bit r/o Rx Short Event Error Cnt */
+ XM_RXE_RUNT = 0x034c, /* 32 bit r/o Rx Runt Event Counter */
+ XM_RXF_LNG_ERR = 0x0350, /* 32 bit r/o Rx Frame too Long Error Cnt */
+ XM_RXF_FCS_ERR = 0x0354, /* 32 bit r/o Rx Frame Check Seq. Error Cnt */
+ XM_RXF_CEX_ERR = 0x035c, /* 32 bit r/o Rx Carrier Ext Error Frame Cnt*/
+ XM_RXP_UTIL = 0x0360, /* 32 bit r/o Rx Utilization in % */
+ XM_RXF_64B = 0x0368, /* 32 bit r/o 64 Byte Rx Frame Counter */
+ XM_RXF_127B = 0x036c, /* 32 bit r/o 65-127 Byte Rx Frame Counter */
+ XM_RXF_255B = 0x0370, /* 32 bit r/o 128-255 Byte Rx Frame Counter */
+ XM_RXF_511B = 0x0374, /* 32 bit r/o 256-511 Byte Rx Frame Counter */
+ XM_RXF_1023B = 0x0378, /* 32 bit r/o 512-1023 Byte Rx Frame Counter*/
+ XM_RXF_MAX_SZ = 0x037c, /* 32 bit r/o 1024-MaxSize Byte Rx Frame Cnt*/
+};
+
+/* XM_MMU_CMD 16 bit r/w MMU Command Register */
+enum {
+ XM_MMU_PHY_RDY = 1<<12, /* Bit 12: PHY Read Ready */
+ XM_MMU_PHY_BUSY = 1<<11, /* Bit 11: PHY Busy */
+ XM_MMU_IGN_PF = 1<<10, /* Bit 10: Ignore Pause Frame */
+ XM_MMU_MAC_LB = 1<<9, /* Bit 9: Enable MAC Loopback */
+ XM_MMU_FRC_COL = 1<<7, /* Bit 7: Force Collision */
+ XM_MMU_SIM_COL = 1<<6, /* Bit 6: Simulate Collision */
+ XM_MMU_NO_PRE = 1<<5, /* Bit 5: No MDIO Preamble */
+ XM_MMU_GMII_FD = 1<<4, /* Bit 4: GMII uses Full Duplex */
+ XM_MMU_RAT_CTRL = 1<<3, /* Bit 3: Enable Rate Control */
+ XM_MMU_GMII_LOOP= 1<<2, /* Bit 2: PHY is in Loopback Mode */
+ XM_MMU_ENA_RX = 1<<1, /* Bit 1: Enable Receiver */
+ XM_MMU_ENA_TX = 1<<0, /* Bit 0: Enable Transmitter */
+};
+
+
+/* XM_TX_CMD 16 bit r/w Transmit Command Register */
+enum {
+ XM_TX_BK2BK = 1<<6, /* Bit 6: Ignor Carrier Sense (Tx Bk2Bk)*/
+ XM_TX_ENC_BYP = 1<<5, /* Bit 5: Set Encoder in Bypass Mode */
+ XM_TX_SAM_LINE = 1<<4, /* Bit 4: (sc) Start utilization calculation */
+ XM_TX_NO_GIG_MD = 1<<3, /* Bit 3: Disable Carrier Extension */
+ XM_TX_NO_PRE = 1<<2, /* Bit 2: Disable Preamble Generation */
+ XM_TX_NO_CRC = 1<<1, /* Bit 1: Disable CRC Generation */
+ XM_TX_AUTO_PAD = 1<<0, /* Bit 0: Enable Automatic Padding */
+};
+
+/* XM_TX_RT_LIM 16 bit r/w Transmit Retry Limit Register */
+#define XM_RT_LIM_MSK 0x1f /* Bit 4..0: Tx Retry Limit */
+
+
+/* XM_TX_STIME 16 bit r/w Transmit Slottime Register */
+#define XM_STIME_MSK 0x7f /* Bit 6..0: Tx Slottime bits */
+
+
+/* XM_TX_IPG 16 bit r/w Transmit Inter Packet Gap */
+#define XM_IPG_MSK 0xff /* Bit 7..0: IPG value bits */
+
+
+/* XM_RX_CMD 16 bit r/w Receive Command Register */
+enum {
+ XM_RX_LENERR_OK = 1<<8, /* Bit 8 don't set Rx Err bit for */
+ /* inrange error packets */
+ XM_RX_BIG_PK_OK = 1<<7, /* Bit 7 don't set Rx Err bit for */
+ /* jumbo packets */
+ XM_RX_IPG_CAP = 1<<6, /* Bit 6 repl. type field with IPG */
+ XM_RX_TP_MD = 1<<5, /* Bit 5: Enable transparent Mode */
+ XM_RX_STRIP_FCS = 1<<4, /* Bit 4: Enable FCS Stripping */
+ XM_RX_SELF_RX = 1<<3, /* Bit 3: Enable Rx of own packets */
+ XM_RX_SAM_LINE = 1<<2, /* Bit 2: (sc) Start utilization calculation */
+ XM_RX_STRIP_PAD = 1<<1, /* Bit 1: Strip pad bytes of Rx frames */
+ XM_RX_DIS_CEXT = 1<<0, /* Bit 0: Disable carrier ext. check */
+};
+
+
+/* XM_GP_PORT 32 bit r/w General Purpose Port Register */
+enum {
+ XM_GP_ANIP = 1<<6, /* Bit 6: (ro) Auto-Neg. in progress */
+ XM_GP_FRC_INT = 1<<5, /* Bit 5: (sc) Force Interrupt */
+ XM_GP_RES_MAC = 1<<3, /* Bit 3: (sc) Reset MAC and FIFOs */
+ XM_GP_RES_STAT = 1<<2, /* Bit 2: (sc) Reset the statistics module */
+ XM_GP_INP_ASS = 1<<0, /* Bit 0: (ro) GP Input Pin asserted */
+};
+
+
+/* XM_IMSK 16 bit r/w Interrupt Mask Register */
+/* XM_ISRC 16 bit r/o Interrupt Status Register */
+enum {
+ XM_IS_LNK_AE = 1<<14, /* Bit 14: Link Asynchronous Event */
+ XM_IS_TX_ABORT = 1<<13, /* Bit 13: Transmit Abort, late Col. etc */
+ XM_IS_FRC_INT = 1<<12, /* Bit 12: Force INT bit set in GP */
+ XM_IS_INP_ASS = 1<<11, /* Bit 11: Input Asserted, GP bit 0 set */
+ XM_IS_LIPA_RC = 1<<10, /* Bit 10: Link Partner requests config */
+ XM_IS_RX_PAGE = 1<<9, /* Bit 9: Page Received */
+ XM_IS_TX_PAGE = 1<<8, /* Bit 8: Next Page Loaded for Transmit */
+ XM_IS_AND = 1<<7, /* Bit 7: Auto-Negotiation Done */
+ XM_IS_TSC_OV = 1<<6, /* Bit 6: Time Stamp Counter Overflow */
+ XM_IS_RXC_OV = 1<<5, /* Bit 5: Rx Counter Event Overflow */
+ XM_IS_TXC_OV = 1<<4, /* Bit 4: Tx Counter Event Overflow */
+ XM_IS_RXF_OV = 1<<3, /* Bit 3: Receive FIFO Overflow */
+ XM_IS_TXF_UR = 1<<2, /* Bit 2: Transmit FIFO Underrun */
+ XM_IS_TX_COMP = 1<<1, /* Bit 1: Frame Tx Complete */
+ XM_IS_RX_COMP = 1<<0, /* Bit 0: Frame Rx Complete */
+
+ XM_IMSK_DISABLE = 0xffff,
+};
+
+/* XM_HW_CFG 16 bit r/w Hardware Config Register */
+enum {
+ XM_HW_GEN_EOP = 1<<3, /* Bit 3: generate End of Packet pulse */
+ XM_HW_COM4SIG = 1<<2, /* Bit 2: use Comma Detect for Sig. Det.*/
+ XM_HW_GMII_MD = 1<<0, /* Bit 0: GMII Interface selected */
+};
+
+
+/* XM_TX_LO_WM 16 bit r/w Tx FIFO Low Water Mark */
+/* XM_TX_HI_WM 16 bit r/w Tx FIFO High Water Mark */
+#define XM_TX_WM_MSK 0x01ff /* Bit 9.. 0 Tx FIFO Watermark bits */
+
+/* XM_TX_THR 16 bit r/w Tx Request Threshold */
+/* XM_HT_THR 16 bit r/w Host Request Threshold */
+/* XM_RX_THR 16 bit r/w Rx Request Threshold */
+#define XM_THR_MSK 0x03ff /* Bit 10.. 0 Rx/Tx Request Threshold bits */
+
+
+/* XM_TX_STAT 32 bit r/o Tx Status LIFO Register */
+enum {
+ XM_ST_VALID = (1UL<<31), /* Bit 31: Status Valid */
+ XM_ST_BYTE_CNT = (0x3fffL<<17), /* Bit 30..17: Tx frame Length */
+ XM_ST_RETRY_CNT = (0x1fL<<12), /* Bit 16..12: Retry Count */
+ XM_ST_EX_COL = 1<<11, /* Bit 11: Excessive Collisions */
+ XM_ST_EX_DEF = 1<<10, /* Bit 10: Excessive Deferral */
+ XM_ST_BURST = 1<<9, /* Bit 9: p. xmitted in burst md*/
+ XM_ST_DEFER = 1<<8, /* Bit 8: packet was defered */
+ XM_ST_BC = 1<<7, /* Bit 7: Broadcast packet */
+ XM_ST_MC = 1<<6, /* Bit 6: Multicast packet */
+ XM_ST_UC = 1<<5, /* Bit 5: Unicast packet */
+ XM_ST_TX_UR = 1<<4, /* Bit 4: FIFO Underrun occurred */
+ XM_ST_CS_ERR = 1<<3, /* Bit 3: Carrier Sense Error */
+ XM_ST_LAT_COL = 1<<2, /* Bit 2: Late Collision Error */
+ XM_ST_MUL_COL = 1<<1, /* Bit 1: Multiple Collisions */
+ XM_ST_SGN_COL = 1<<0, /* Bit 0: Single Collision */
+};
+
+/* XM_RX_LO_WM 16 bit r/w Receive Low Water Mark */
+/* XM_RX_HI_WM 16 bit r/w Receive High Water Mark */
+#define XM_RX_WM_MSK 0x03ff /* Bit 11.. 0: Rx FIFO Watermark bits */
+
+
+/* XM_DEV_ID 32 bit r/o Device ID Register */
+#define XM_DEV_OUI (0x00ffffffUL<<8) /* Bit 31..8: Device OUI */
+#define XM_DEV_REV (0x07L << 5) /* Bit 7..5: Chip Rev Num */
+
+
+/* XM_MODE 32 bit r/w Mode Register */
+enum {
+ XM_MD_ENA_REJ = 1<<26, /* Bit 26: Enable Frame Reject */
+ XM_MD_SPOE_E = 1<<25, /* Bit 25: Send Pause on Edge */
+ /* extern generated */
+ XM_MD_TX_REP = 1<<24, /* Bit 24: Transmit Repeater Mode */
+ XM_MD_SPOFF_I = 1<<23, /* Bit 23: Send Pause on FIFO full */
+ /* intern generated */
+ XM_MD_LE_STW = 1<<22, /* Bit 22: Rx Stat Word in Little Endian */
+ XM_MD_TX_CONT = 1<<21, /* Bit 21: Send Continuous */
+ XM_MD_TX_PAUSE = 1<<20, /* Bit 20: (sc) Send Pause Frame */
+ XM_MD_ATS = 1<<19, /* Bit 19: Append Time Stamp */
+ XM_MD_SPOL_I = 1<<18, /* Bit 18: Send Pause on Low */
+ /* intern generated */
+ XM_MD_SPOH_I = 1<<17, /* Bit 17: Send Pause on High */
+ /* intern generated */
+ XM_MD_CAP = 1<<16, /* Bit 16: Check Address Pair */
+ XM_MD_ENA_HASH = 1<<15, /* Bit 15: Enable Hashing */
+ XM_MD_CSA = 1<<14, /* Bit 14: Check Station Address */
+ XM_MD_CAA = 1<<13, /* Bit 13: Check Address Array */
+ XM_MD_RX_MCTRL = 1<<12, /* Bit 12: Rx MAC Control Frame */
+ XM_MD_RX_RUNT = 1<<11, /* Bit 11: Rx Runt Frames */
+ XM_MD_RX_IRLE = 1<<10, /* Bit 10: Rx in Range Len Err Frame */
+ XM_MD_RX_LONG = 1<<9, /* Bit 9: Rx Long Frame */
+ XM_MD_RX_CRCE = 1<<8, /* Bit 8: Rx CRC Error Frame */
+ XM_MD_RX_ERR = 1<<7, /* Bit 7: Rx Error Frame */
+ XM_MD_DIS_UC = 1<<6, /* Bit 6: Disable Rx Unicast */
+ XM_MD_DIS_MC = 1<<5, /* Bit 5: Disable Rx Multicast */
+ XM_MD_DIS_BC = 1<<4, /* Bit 4: Disable Rx Broadcast */
+ XM_MD_ENA_PROM = 1<<3, /* Bit 3: Enable Promiscuous */
+ XM_MD_ENA_BE = 1<<2, /* Bit 2: Enable Big Endian */
+ XM_MD_FTF = 1<<1, /* Bit 1: (sc) Flush Tx FIFO */
+ XM_MD_FRF = 1<<0, /* Bit 0: (sc) Flush Rx FIFO */
+};
+
+#define XM_PAUSE_MODE (XM_MD_SPOE_E | XM_MD_SPOL_I | XM_MD_SPOH_I)
+#define XM_DEF_MODE (XM_MD_RX_RUNT | XM_MD_RX_IRLE | XM_MD_RX_LONG |\
+ XM_MD_RX_CRCE | XM_MD_RX_ERR | XM_MD_CSA)
+
+/* XM_STAT_CMD 16 bit r/w Statistics Command Register */
+enum {
+ XM_SC_SNP_RXC = 1<<5, /* Bit 5: (sc) Snap Rx Counters */
+ XM_SC_SNP_TXC = 1<<4, /* Bit 4: (sc) Snap Tx Counters */
+ XM_SC_CP_RXC = 1<<3, /* Bit 3: Copy Rx Counters Continuously */
+ XM_SC_CP_TXC = 1<<2, /* Bit 2: Copy Tx Counters Continuously */
+ XM_SC_CLR_RXC = 1<<1, /* Bit 1: (sc) Clear Rx Counters */
+ XM_SC_CLR_TXC = 1<<0, /* Bit 0: (sc) Clear Tx Counters */
+};
+
+
+/* XM_RX_CNT_EV 32 bit r/o Rx Counter Event Register */
+/* XM_RX_EV_MSK 32 bit r/w Rx Counter Event Mask */
+enum {
+ XMR_MAX_SZ_OV = 1<<31, /* Bit 31: 1024-MaxSize Rx Cnt Ov*/
+ XMR_1023B_OV = 1<<30, /* Bit 30: 512-1023Byte Rx Cnt Ov*/
+ XMR_511B_OV = 1<<29, /* Bit 29: 256-511 Byte Rx Cnt Ov*/
+ XMR_255B_OV = 1<<28, /* Bit 28: 128-255 Byte Rx Cnt Ov*/
+ XMR_127B_OV = 1<<27, /* Bit 27: 65-127 Byte Rx Cnt Ov */
+ XMR_64B_OV = 1<<26, /* Bit 26: 64 Byte Rx Cnt Ov */
+ XMR_UTIL_OV = 1<<25, /* Bit 25: Rx Util Cnt Overflow */
+ XMR_UTIL_UR = 1<<24, /* Bit 24: Rx Util Cnt Underrun */
+ XMR_CEX_ERR_OV = 1<<23, /* Bit 23: CEXT Err Cnt Ov */
+ XMR_FCS_ERR_OV = 1<<21, /* Bit 21: Rx FCS Error Cnt Ov */
+ XMR_LNG_ERR_OV = 1<<20, /* Bit 20: Rx too Long Err Cnt Ov*/
+ XMR_RUNT_OV = 1<<19, /* Bit 19: Runt Event Cnt Ov */
+ XMR_SHT_ERR_OV = 1<<18, /* Bit 18: Rx Short Ev Err Cnt Ov*/
+ XMR_SYM_ERR_OV = 1<<17, /* Bit 17: Rx Sym Err Cnt Ov */
+ XMR_CAR_ERR_OV = 1<<15, /* Bit 15: Rx Carr Ev Err Cnt Ov */
+ XMR_JAB_PKT_OV = 1<<14, /* Bit 14: Rx Jabb Packet Cnt Ov */
+ XMR_FIFO_OV = 1<<13, /* Bit 13: Rx FIFO Ov Ev Cnt Ov */
+ XMR_FRA_ERR_OV = 1<<12, /* Bit 12: Rx Framing Err Cnt Ov */
+ XMR_FMISS_OV = 1<<11, /* Bit 11: Rx Missed Ev Cnt Ov */
+ XMR_BURST = 1<<10, /* Bit 10: Rx Burst Event Cnt Ov */
+ XMR_INV_MOC = 1<<9, /* Bit 9: Rx with inv. MAC OC Ov*/
+ XMR_INV_MP = 1<<8, /* Bit 8: Rx inv Pause Frame Ov */
+ XMR_MCTRL_OV = 1<<7, /* Bit 7: Rx MAC Ctrl-F Cnt Ov */
+ XMR_MPAUSE_OV = 1<<6, /* Bit 6: Rx Pause MAC Ctrl-F Ov*/
+ XMR_UC_OK_OV = 1<<5, /* Bit 5: Rx Unicast Frame CntOv*/
+ XMR_MC_OK_OV = 1<<4, /* Bit 4: Rx Multicast Cnt Ov */
+ XMR_BC_OK_OV = 1<<3, /* Bit 3: Rx Broadcast Cnt Ov */
+ XMR_OK_LO_OV = 1<<2, /* Bit 2: Octets Rx OK Low CntOv*/
+ XMR_OK_HI_OV = 1<<1, /* Bit 1: Octets Rx OK Hi Cnt Ov*/
+ XMR_OK_OV = 1<<0, /* Bit 0: Frames Received Ok Ov */
+};
+
+#define XMR_DEF_MSK (XMR_OK_LO_OV | XMR_OK_HI_OV)
+
+/* XM_TX_CNT_EV 32 bit r/o Tx Counter Event Register */
+/* XM_TX_EV_MSK 32 bit r/w Tx Counter Event Mask */
+enum {
+ XMT_MAX_SZ_OV = 1<<25, /* Bit 25: 1024-MaxSize Tx Cnt Ov*/
+ XMT_1023B_OV = 1<<24, /* Bit 24: 512-1023Byte Tx Cnt Ov*/
+ XMT_511B_OV = 1<<23, /* Bit 23: 256-511 Byte Tx Cnt Ov*/
+ XMT_255B_OV = 1<<22, /* Bit 22: 128-255 Byte Tx Cnt Ov*/
+ XMT_127B_OV = 1<<21, /* Bit 21: 65-127 Byte Tx Cnt Ov */
+ XMT_64B_OV = 1<<20, /* Bit 20: 64 Byte Tx Cnt Ov */
+ XMT_UTIL_OV = 1<<19, /* Bit 19: Tx Util Cnt Overflow */
+ XMT_UTIL_UR = 1<<18, /* Bit 18: Tx Util Cnt Underrun */
+ XMT_CS_ERR_OV = 1<<17, /* Bit 17: Tx Carr Sen Err Cnt Ov*/
+ XMT_FIFO_UR_OV = 1<<16, /* Bit 16: Tx FIFO Ur Ev Cnt Ov */
+ XMT_EX_DEF_OV = 1<<15, /* Bit 15: Tx Ex Deferall Cnt Ov */
+ XMT_DEF = 1<<14, /* Bit 14: Tx Deferred Cnt Ov */
+ XMT_LAT_COL_OV = 1<<13, /* Bit 13: Tx Late Col Cnt Ov */
+ XMT_ABO_COL_OV = 1<<12, /* Bit 12: Tx abo dueto Ex Col Ov*/
+ XMT_MUL_COL_OV = 1<<11, /* Bit 11: Tx Mult Col Cnt Ov */
+ XMT_SNG_COL = 1<<10, /* Bit 10: Tx Single Col Cnt Ov */
+ XMT_MCTRL_OV = 1<<9, /* Bit 9: Tx MAC Ctrl Counter Ov*/
+ XMT_MPAUSE = 1<<8, /* Bit 8: Tx Pause MAC Ctrl-F Ov*/
+ XMT_BURST = 1<<7, /* Bit 7: Tx Burst Event Cnt Ov */
+ XMT_LONG = 1<<6, /* Bit 6: Tx Long Frame Cnt Ov */
+ XMT_UC_OK_OV = 1<<5, /* Bit 5: Tx Unicast Cnt Ov */
+ XMT_MC_OK_OV = 1<<4, /* Bit 4: Tx Multicast Cnt Ov */
+ XMT_BC_OK_OV = 1<<3, /* Bit 3: Tx Broadcast Cnt Ov */
+ XMT_OK_LO_OV = 1<<2, /* Bit 2: Octets Tx OK Low CntOv*/
+ XMT_OK_HI_OV = 1<<1, /* Bit 1: Octets Tx OK Hi Cnt Ov*/
+ XMT_OK_OV = 1<<0, /* Bit 0: Frames Tx Ok Ov */
+};
+
+#define XMT_DEF_MSK (XMT_OK_LO_OV | XMT_OK_HI_OV)
+
+struct skge_rx_desc {
+ u32 control;
+ u32 next_offset;
+ u32 dma_lo;
+ u32 dma_hi;
+ u32 status;
+ u32 timestamp;
+ u16 csum2;
+ u16 csum1;
+ u16 csum2_start;
+ u16 csum1_start;
+};
+
+struct skge_tx_desc {
+ u32 control;
+ u32 next_offset;
+ u32 dma_lo;
+ u32 dma_hi;
+ u32 status;
+ u32 csum_offs;
+ u16 csum_write;
+ u16 csum_start;
+ u32 rsvd;
+};
+
+struct skge_element {
+ struct skge_element *next;
+ void *desc;
+ struct sk_buff *skb;
+ DEFINE_DMA_UNMAP_ADDR(mapaddr);
+ DEFINE_DMA_UNMAP_LEN(maplen);
+};
+
+struct skge_ring {
+ struct skge_element *to_clean;
+ struct skge_element *to_use;
+ struct skge_element *start;
+ unsigned long count;
+};
+
+
+struct skge_hw {
+ void __iomem *regs;
+ struct pci_dev *pdev;
+ spinlock_t hw_lock;
+ u32 intr_mask;
+ struct net_device *dev[2];
+
+ u8 chip_id;
+ u8 chip_rev;
+ u8 copper;
+ u8 ports;
+ u8 phy_type;
+
+ u32 ram_size;
+ u32 ram_offset;
+ u16 phy_addr;
+ spinlock_t phy_lock;
+ struct tasklet_struct phy_task;
+
+ char irq_name[0]; /* skge@pci:000:04:00.0 */
+};
+
+enum pause_control {
+ FLOW_MODE_NONE = 1, /* No Flow-Control */
+ FLOW_MODE_LOC_SEND = 2, /* Local station sends PAUSE */
+ FLOW_MODE_SYMMETRIC = 3, /* Both stations may send PAUSE */
+ FLOW_MODE_SYM_OR_REM = 4, /* Both stations may send PAUSE or
+ * just the remote station may send PAUSE
+ */
+};
+
+enum pause_status {
+ FLOW_STAT_INDETERMINATED=0, /* indeterminated */
+ FLOW_STAT_NONE, /* No Flow Control */
+ FLOW_STAT_REM_SEND, /* Remote Station sends PAUSE */
+ FLOW_STAT_LOC_SEND, /* Local station sends PAUSE */
+ FLOW_STAT_SYMMETRIC, /* Both station may send PAUSE */
+};
+
+
+struct skge_port {
+ struct skge_hw *hw;
+ struct net_device *netdev;
+ struct napi_struct napi;
+ int port;
+ u32 msg_enable;
+
+ struct skge_ring tx_ring;
+
+ struct skge_ring rx_ring ____cacheline_aligned_in_smp;
+ unsigned int rx_buf_size;
+
+ struct timer_list link_timer;
+ enum pause_control flow_control;
+ enum pause_status flow_status;
+ u8 blink_on;
+ u8 wol;
+ u8 autoneg; /* AUTONEG_ENABLE, AUTONEG_DISABLE */
+ u8 duplex; /* DUPLEX_HALF, DUPLEX_FULL */
+ u16 speed; /* SPEED_1000, SPEED_100, ... */
+ u32 advertising;
+
+ void *mem; /* PCI memory for rings */
+ dma_addr_t dma;
+ unsigned long mem_size;
+#ifdef CONFIG_SKGE_DEBUG
+ struct dentry *debugfs;
+#endif
+};
+
+
+/* Register accessor for memory mapped device */
+static inline u32 skge_read32(const struct skge_hw *hw, int reg)
+{
+ return readl(hw->regs + reg);
+}
+
+static inline u16 skge_read16(const struct skge_hw *hw, int reg)
+{
+ return readw(hw->regs + reg);
+}
+
+static inline u8 skge_read8(const struct skge_hw *hw, int reg)
+{
+ return readb(hw->regs + reg);
+}
+
+static inline void skge_write32(const struct skge_hw *hw, int reg, u32 val)
+{
+ writel(val, hw->regs + reg);
+}
+
+static inline void skge_write16(const struct skge_hw *hw, int reg, u16 val)
+{
+ writew(val, hw->regs + reg);
+}
+
+static inline void skge_write8(const struct skge_hw *hw, int reg, u8 val)
+{
+ writeb(val, hw->regs + reg);
+}
+
+/* MAC Related Registers inside the device. */
+#define SK_REG(port,reg) (((port)<<7)+(u16)(reg))
+#define SK_XMAC_REG(port, reg) \
+ ((BASE_XMAC_1 + (port) * (BASE_XMAC_2 - BASE_XMAC_1)) | (reg) << 1)
+
+static inline u32 xm_read32(const struct skge_hw *hw, int port, int reg)
+{
+ u32 v;
+ v = skge_read16(hw, SK_XMAC_REG(port, reg));
+ v |= (u32)skge_read16(hw, SK_XMAC_REG(port, reg+2)) << 16;
+ return v;
+}
+
+static inline u16 xm_read16(const struct skge_hw *hw, int port, int reg)
+{
+ return skge_read16(hw, SK_XMAC_REG(port,reg));
+}
+
+static inline void xm_write32(const struct skge_hw *hw, int port, int r, u32 v)
+{
+ skge_write16(hw, SK_XMAC_REG(port,r), v & 0xffff);
+ skge_write16(hw, SK_XMAC_REG(port,r+2), v >> 16);
+}
+
+static inline void xm_write16(const struct skge_hw *hw, int port, int r, u16 v)
+{
+ skge_write16(hw, SK_XMAC_REG(port,r), v);
+}
+
+static inline void xm_outhash(const struct skge_hw *hw, int port, int reg,
+ const u8 *hash)
+{
+ xm_write16(hw, port, reg, (u16)hash[0] | ((u16)hash[1] << 8));
+ xm_write16(hw, port, reg+2, (u16)hash[2] | ((u16)hash[3] << 8));
+ xm_write16(hw, port, reg+4, (u16)hash[4] | ((u16)hash[5] << 8));
+ xm_write16(hw, port, reg+6, (u16)hash[6] | ((u16)hash[7] << 8));
+}
+
+static inline void xm_outaddr(const struct skge_hw *hw, int port, int reg,
+ const u8 *addr)
+{
+ xm_write16(hw, port, reg, (u16)addr[0] | ((u16)addr[1] << 8));
+ xm_write16(hw, port, reg+2, (u16)addr[2] | ((u16)addr[3] << 8));
+ xm_write16(hw, port, reg+4, (u16)addr[4] | ((u16)addr[5] << 8));
+}
+
+#define SK_GMAC_REG(port,reg) \
+ (BASE_GMAC_1 + (port) * (BASE_GMAC_2-BASE_GMAC_1) + (reg))
+
+static inline u16 gma_read16(const struct skge_hw *hw, int port, int reg)
+{
+ return skge_read16(hw, SK_GMAC_REG(port,reg));
+}
+
+static inline u32 gma_read32(const struct skge_hw *hw, int port, int reg)
+{
+ return (u32) skge_read16(hw, SK_GMAC_REG(port,reg))
+ | ((u32)skge_read16(hw, SK_GMAC_REG(port,reg+4)) << 16);
+}
+
+static inline void gma_write16(const struct skge_hw *hw, int port, int r, u16 v)
+{
+ skge_write16(hw, SK_GMAC_REG(port,r), v);
+}
+
+static inline void gma_set_addr(struct skge_hw *hw, int port, int reg,
+ const u8 *addr)
+{
+ gma_write16(hw, port, reg, (u16) addr[0] | ((u16) addr[1] << 8));
+ gma_write16(hw, port, reg+4,(u16) addr[2] | ((u16) addr[3] << 8));
+ gma_write16(hw, port, reg+8,(u16) addr[4] | ((u16) addr[5] << 8));
+}
+
+#endif
diff --git a/drivers/net/ethernet/marvell/sky2.c b/drivers/net/ethernet/marvell/sky2.c
new file mode 100644
index 000000000..d9f449883
--- /dev/null
+++ b/drivers/net/ethernet/marvell/sky2.c
@@ -0,0 +1,5245 @@
+/*
+ * New driver for Marvell Yukon 2 chipset.
+ * Based on earlier sk98lin, and skge driver.
+ *
+ * This driver intentionally does not support all the features
+ * of the original driver such as link fail-over and link management because
+ * those should be done at higher levels.
+ *
+ * Copyright (C) 2005 Stephen Hemminger <shemminger@osdl.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/crc32.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/netdevice.h>
+#include <linux/dma-mapping.h>
+#include <linux/etherdevice.h>
+#include <linux/ethtool.h>
+#include <linux/pci.h>
+#include <linux/interrupt.h>
+#include <linux/ip.h>
+#include <linux/slab.h>
+#include <net/ip.h>
+#include <linux/tcp.h>
+#include <linux/in.h>
+#include <linux/delay.h>
+#include <linux/workqueue.h>
+#include <linux/if_vlan.h>
+#include <linux/prefetch.h>
+#include <linux/debugfs.h>
+#include <linux/mii.h>
+#include <linux/of_device.h>
+#include <linux/of_net.h>
+
+#include <asm/irq.h>
+
+#include "sky2.h"
+
+#define DRV_NAME "sky2"
+#define DRV_VERSION "1.30"
+
+/*
+ * The Yukon II chipset takes 64 bit command blocks (called list elements)
+ * that are organized into three (receive, transmit, status) different rings
+ * similar to Tigon3.
+ */
+
+#define RX_LE_SIZE 1024
+#define RX_LE_BYTES (RX_LE_SIZE*sizeof(struct sky2_rx_le))
+#define RX_MAX_PENDING (RX_LE_SIZE/6 - 2)
+#define RX_DEF_PENDING RX_MAX_PENDING
+
+/* This is the worst case number of transmit list elements for a single skb:
+ VLAN:GSO + CKSUM + Data + skb_frags * DMA */
+#define MAX_SKB_TX_LE (2 + (sizeof(dma_addr_t)/sizeof(u32))*(MAX_SKB_FRAGS+1))
+#define TX_MIN_PENDING (MAX_SKB_TX_LE+1)
+#define TX_MAX_PENDING 1024
+#define TX_DEF_PENDING 63
+
+#define TX_WATCHDOG (5 * HZ)
+#define NAPI_WEIGHT 64
+#define PHY_RETRIES 1000
+
+#define SKY2_EEPROM_MAGIC 0x9955aabb
+
+#define RING_NEXT(x, s) (((x)+1) & ((s)-1))
+
+static const u32 default_msg =
+ NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK
+ | NETIF_MSG_TIMER | NETIF_MSG_TX_ERR | NETIF_MSG_RX_ERR
+ | NETIF_MSG_IFUP | NETIF_MSG_IFDOWN;
+
+static int debug = -1; /* defaults above */
+module_param(debug, int, 0);
+MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)");
+
+static int copybreak __read_mostly = 128;
+module_param(copybreak, int, 0);
+MODULE_PARM_DESC(copybreak, "Receive copy threshold");
+
+static int disable_msi = 0;
+module_param(disable_msi, int, 0);
+MODULE_PARM_DESC(disable_msi, "Disable Message Signaled Interrupt (MSI)");
+
+static int legacy_pme = 0;
+module_param(legacy_pme, int, 0);
+MODULE_PARM_DESC(legacy_pme, "Legacy power management");
+
+static const struct pci_device_id sky2_id_table[] = {
+ { PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, 0x9000) }, /* SK-9Sxx */
+ { PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, 0x9E00) }, /* SK-9Exx */
+ { PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, 0x9E01) }, /* SK-9E21M */
+ { PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x4b00) }, /* DGE-560T */
+ { PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x4001) }, /* DGE-550SX */
+ { PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x4B02) }, /* DGE-560SX */
+ { PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x4B03) }, /* DGE-550T */
+ { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4340) }, /* 88E8021 */
+ { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4341) }, /* 88E8022 */
+ { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4342) }, /* 88E8061 */
+ { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4343) }, /* 88E8062 */
+ { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4344) }, /* 88E8021 */
+ { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4345) }, /* 88E8022 */
+ { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4346) }, /* 88E8061 */
+ { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4347) }, /* 88E8062 */
+ { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4350) }, /* 88E8035 */
+ { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4351) }, /* 88E8036 */
+ { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4352) }, /* 88E8038 */
+ { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4353) }, /* 88E8039 */
+ { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4354) }, /* 88E8040 */
+ { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4355) }, /* 88E8040T */
+ { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4356) }, /* 88EC033 */
+ { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4357) }, /* 88E8042 */
+ { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x435A) }, /* 88E8048 */
+ { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4360) }, /* 88E8052 */
+ { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4361) }, /* 88E8050 */
+ { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4362) }, /* 88E8053 */
+ { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4363) }, /* 88E8055 */
+ { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4364) }, /* 88E8056 */
+ { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4365) }, /* 88E8070 */
+ { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4366) }, /* 88EC036 */
+ { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4367) }, /* 88EC032 */
+ { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4368) }, /* 88EC034 */
+ { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4369) }, /* 88EC042 */
+ { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x436A) }, /* 88E8058 */
+ { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x436B) }, /* 88E8071 */
+ { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x436C) }, /* 88E8072 */
+ { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x436D) }, /* 88E8055 */
+ { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4370) }, /* 88E8075 */
+ { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4380) }, /* 88E8057 */
+ { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4381) }, /* 88E8059 */
+ { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4382) }, /* 88E8079 */
+ { 0 }
+};
+
+MODULE_DEVICE_TABLE(pci, sky2_id_table);
+
+/* Avoid conditionals by using array */
+static const unsigned txqaddr[] = { Q_XA1, Q_XA2 };
+static const unsigned rxqaddr[] = { Q_R1, Q_R2 };
+static const u32 portirq_msk[] = { Y2_IS_PORT_1, Y2_IS_PORT_2 };
+
+static void sky2_set_multicast(struct net_device *dev);
+static irqreturn_t sky2_intr(int irq, void *dev_id);
+
+/* Access to PHY via serial interconnect */
+static int gm_phy_write(struct sky2_hw *hw, unsigned port, u16 reg, u16 val)
+{
+ int i;
+
+ gma_write16(hw, port, GM_SMI_DATA, val);
+ gma_write16(hw, port, GM_SMI_CTRL,
+ GM_SMI_CT_PHY_AD(PHY_ADDR_MARV) | GM_SMI_CT_REG_AD(reg));
+
+ for (i = 0; i < PHY_RETRIES; i++) {
+ u16 ctrl = gma_read16(hw, port, GM_SMI_CTRL);
+ if (ctrl == 0xffff)
+ goto io_error;
+
+ if (!(ctrl & GM_SMI_CT_BUSY))
+ return 0;
+
+ udelay(10);
+ }
+
+ dev_warn(&hw->pdev->dev, "%s: phy write timeout\n", hw->dev[port]->name);
+ return -ETIMEDOUT;
+
+io_error:
+ dev_err(&hw->pdev->dev, "%s: phy I/O error\n", hw->dev[port]->name);
+ return -EIO;
+}
+
+static int __gm_phy_read(struct sky2_hw *hw, unsigned port, u16 reg, u16 *val)
+{
+ int i;
+
+ gma_write16(hw, port, GM_SMI_CTRL, GM_SMI_CT_PHY_AD(PHY_ADDR_MARV)
+ | GM_SMI_CT_REG_AD(reg) | GM_SMI_CT_OP_RD);
+
+ for (i = 0; i < PHY_RETRIES; i++) {
+ u16 ctrl = gma_read16(hw, port, GM_SMI_CTRL);
+ if (ctrl == 0xffff)
+ goto io_error;
+
+ if (ctrl & GM_SMI_CT_RD_VAL) {
+ *val = gma_read16(hw, port, GM_SMI_DATA);
+ return 0;
+ }
+
+ udelay(10);
+ }
+
+ dev_warn(&hw->pdev->dev, "%s: phy read timeout\n", hw->dev[port]->name);
+ return -ETIMEDOUT;
+io_error:
+ dev_err(&hw->pdev->dev, "%s: phy I/O error\n", hw->dev[port]->name);
+ return -EIO;
+}
+
+static inline u16 gm_phy_read(struct sky2_hw *hw, unsigned port, u16 reg)
+{
+ u16 v;
+ __gm_phy_read(hw, port, reg, &v);
+ return v;
+}
+
+
+static void sky2_power_on(struct sky2_hw *hw)
+{
+ /* switch power to VCC (WA for VAUX problem) */
+ sky2_write8(hw, B0_POWER_CTRL,
+ PC_VAUX_ENA | PC_VCC_ENA | PC_VAUX_OFF | PC_VCC_ON);
+
+ /* disable Core Clock Division, */
+ sky2_write32(hw, B2_Y2_CLK_CTRL, Y2_CLK_DIV_DIS);
+
+ if (hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev > CHIP_REV_YU_XL_A1)
+ /* enable bits are inverted */
+ sky2_write8(hw, B2_Y2_CLK_GATE,
+ Y2_PCI_CLK_LNK1_DIS | Y2_COR_CLK_LNK1_DIS |
+ Y2_CLK_GAT_LNK1_DIS | Y2_PCI_CLK_LNK2_DIS |
+ Y2_COR_CLK_LNK2_DIS | Y2_CLK_GAT_LNK2_DIS);
+ else
+ sky2_write8(hw, B2_Y2_CLK_GATE, 0);
+
+ if (hw->flags & SKY2_HW_ADV_POWER_CTL) {
+ u32 reg;
+
+ sky2_pci_write32(hw, PCI_DEV_REG3, 0);
+
+ reg = sky2_pci_read32(hw, PCI_DEV_REG4);
+ /* set all bits to 0 except bits 15..12 and 8 */
+ reg &= P_ASPM_CONTROL_MSK;
+ sky2_pci_write32(hw, PCI_DEV_REG4, reg);
+
+ reg = sky2_pci_read32(hw, PCI_DEV_REG5);
+ /* set all bits to 0 except bits 28 & 27 */
+ reg &= P_CTL_TIM_VMAIN_AV_MSK;
+ sky2_pci_write32(hw, PCI_DEV_REG5, reg);
+
+ sky2_pci_write32(hw, PCI_CFG_REG_1, 0);
+
+ sky2_write16(hw, B0_CTST, Y2_HW_WOL_ON);
+
+ /* Enable workaround for dev 4.107 on Yukon-Ultra & Extreme */
+ reg = sky2_read32(hw, B2_GP_IO);
+ reg |= GLB_GPIO_STAT_RACE_DIS;
+ sky2_write32(hw, B2_GP_IO, reg);
+
+ sky2_read32(hw, B2_GP_IO);
+ }
+
+ /* Turn on "driver loaded" LED */
+ sky2_write16(hw, B0_CTST, Y2_LED_STAT_ON);
+}
+
+static void sky2_power_aux(struct sky2_hw *hw)
+{
+ if (hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev > CHIP_REV_YU_XL_A1)
+ sky2_write8(hw, B2_Y2_CLK_GATE, 0);
+ else
+ /* enable bits are inverted */
+ sky2_write8(hw, B2_Y2_CLK_GATE,
+ Y2_PCI_CLK_LNK1_DIS | Y2_COR_CLK_LNK1_DIS |
+ Y2_CLK_GAT_LNK1_DIS | Y2_PCI_CLK_LNK2_DIS |
+ Y2_COR_CLK_LNK2_DIS | Y2_CLK_GAT_LNK2_DIS);
+
+ /* switch power to VAUX if supported and PME from D3cold */
+ if ( (sky2_read32(hw, B0_CTST) & Y2_VAUX_AVAIL) &&
+ pci_pme_capable(hw->pdev, PCI_D3cold))
+ sky2_write8(hw, B0_POWER_CTRL,
+ (PC_VAUX_ENA | PC_VCC_ENA |
+ PC_VAUX_ON | PC_VCC_OFF));
+
+ /* turn off "driver loaded LED" */
+ sky2_write16(hw, B0_CTST, Y2_LED_STAT_OFF);
+}
+
+static void sky2_gmac_reset(struct sky2_hw *hw, unsigned port)
+{
+ u16 reg;
+
+ /* disable all GMAC IRQ's */
+ sky2_write8(hw, SK_REG(port, GMAC_IRQ_MSK), 0);
+
+ gma_write16(hw, port, GM_MC_ADDR_H1, 0); /* clear MC hash */
+ gma_write16(hw, port, GM_MC_ADDR_H2, 0);
+ gma_write16(hw, port, GM_MC_ADDR_H3, 0);
+ gma_write16(hw, port, GM_MC_ADDR_H4, 0);
+
+ reg = gma_read16(hw, port, GM_RX_CTRL);
+ reg |= GM_RXCR_UCF_ENA | GM_RXCR_MCF_ENA;
+ gma_write16(hw, port, GM_RX_CTRL, reg);
+}
+
+/* flow control to advertise bits */
+static const u16 copper_fc_adv[] = {
+ [FC_NONE] = 0,
+ [FC_TX] = PHY_M_AN_ASP,
+ [FC_RX] = PHY_M_AN_PC,
+ [FC_BOTH] = PHY_M_AN_PC | PHY_M_AN_ASP,
+};
+
+/* flow control to advertise bits when using 1000BaseX */
+static const u16 fiber_fc_adv[] = {
+ [FC_NONE] = PHY_M_P_NO_PAUSE_X,
+ [FC_TX] = PHY_M_P_ASYM_MD_X,
+ [FC_RX] = PHY_M_P_SYM_MD_X,
+ [FC_BOTH] = PHY_M_P_BOTH_MD_X,
+};
+
+/* flow control to GMA disable bits */
+static const u16 gm_fc_disable[] = {
+ [FC_NONE] = GM_GPCR_FC_RX_DIS | GM_GPCR_FC_TX_DIS,
+ [FC_TX] = GM_GPCR_FC_RX_DIS,
+ [FC_RX] = GM_GPCR_FC_TX_DIS,
+ [FC_BOTH] = 0,
+};
+
+
+static void sky2_phy_init(struct sky2_hw *hw, unsigned port)
+{
+ struct sky2_port *sky2 = netdev_priv(hw->dev[port]);
+ u16 ctrl, ct1000, adv, pg, ledctrl, ledover, reg;
+
+ if ( (sky2->flags & SKY2_FLAG_AUTO_SPEED) &&
+ !(hw->flags & SKY2_HW_NEWER_PHY)) {
+ u16 ectrl = gm_phy_read(hw, port, PHY_MARV_EXT_CTRL);
+
+ ectrl &= ~(PHY_M_EC_M_DSC_MSK | PHY_M_EC_S_DSC_MSK |
+ PHY_M_EC_MAC_S_MSK);
+ ectrl |= PHY_M_EC_MAC_S(MAC_TX_CLK_25_MHZ);
+
+ /* on PHY 88E1040 Rev.D0 (and newer) downshift control changed */
+ if (hw->chip_id == CHIP_ID_YUKON_EC)
+ /* set downshift counter to 3x and enable downshift */
+ ectrl |= PHY_M_EC_DSC_2(2) | PHY_M_EC_DOWN_S_ENA;
+ else
+ /* set master & slave downshift counter to 1x */
+ ectrl |= PHY_M_EC_M_DSC(0) | PHY_M_EC_S_DSC(1);
+
+ gm_phy_write(hw, port, PHY_MARV_EXT_CTRL, ectrl);
+ }
+
+ ctrl = gm_phy_read(hw, port, PHY_MARV_PHY_CTRL);
+ if (sky2_is_copper(hw)) {
+ if (!(hw->flags & SKY2_HW_GIGABIT)) {
+ /* enable automatic crossover */
+ ctrl |= PHY_M_PC_MDI_XMODE(PHY_M_PC_ENA_AUTO) >> 1;
+
+ if (hw->chip_id == CHIP_ID_YUKON_FE_P &&
+ hw->chip_rev == CHIP_REV_YU_FE2_A0) {
+ u16 spec;
+
+ /* Enable Class A driver for FE+ A0 */
+ spec = gm_phy_read(hw, port, PHY_MARV_FE_SPEC_2);
+ spec |= PHY_M_FESC_SEL_CL_A;
+ gm_phy_write(hw, port, PHY_MARV_FE_SPEC_2, spec);
+ }
+ } else {
+ /* disable energy detect */
+ ctrl &= ~PHY_M_PC_EN_DET_MSK;
+
+ /* enable automatic crossover */
+ ctrl |= PHY_M_PC_MDI_XMODE(PHY_M_PC_ENA_AUTO);
+
+ /* downshift on PHY 88E1112 and 88E1149 is changed */
+ if ( (sky2->flags & SKY2_FLAG_AUTO_SPEED) &&
+ (hw->flags & SKY2_HW_NEWER_PHY)) {
+ /* set downshift counter to 3x and enable downshift */
+ ctrl &= ~PHY_M_PC_DSC_MSK;
+ ctrl |= PHY_M_PC_DSC(2) | PHY_M_PC_DOWN_S_ENA;
+ }
+ }
+ } else {
+ /* workaround for deviation #4.88 (CRC errors) */
+ /* disable Automatic Crossover */
+
+ ctrl &= ~PHY_M_PC_MDIX_MSK;
+ }
+
+ gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, ctrl);
+
+ /* special setup for PHY 88E1112 Fiber */
+ if (hw->chip_id == CHIP_ID_YUKON_XL && (hw->flags & SKY2_HW_FIBRE_PHY)) {
+ pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR);
+
+ /* Fiber: select 1000BASE-X only mode MAC Specific Ctrl Reg. */
+ gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 2);
+ ctrl = gm_phy_read(hw, port, PHY_MARV_PHY_CTRL);
+ ctrl &= ~PHY_M_MAC_MD_MSK;
+ ctrl |= PHY_M_MAC_MODE_SEL(PHY_M_MAC_MD_1000BX);
+ gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, ctrl);
+
+ if (hw->pmd_type == 'P') {
+ /* select page 1 to access Fiber registers */
+ gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 1);
+
+ /* for SFP-module set SIGDET polarity to low */
+ ctrl = gm_phy_read(hw, port, PHY_MARV_PHY_CTRL);
+ ctrl |= PHY_M_FIB_SIGD_POL;
+ gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, ctrl);
+ }
+
+ gm_phy_write(hw, port, PHY_MARV_EXT_ADR, pg);
+ }
+
+ ctrl = PHY_CT_RESET;
+ ct1000 = 0;
+ adv = PHY_AN_CSMA;
+ reg = 0;
+
+ if (sky2->flags & SKY2_FLAG_AUTO_SPEED) {
+ if (sky2_is_copper(hw)) {
+ if (sky2->advertising & ADVERTISED_1000baseT_Full)
+ ct1000 |= PHY_M_1000C_AFD;
+ if (sky2->advertising & ADVERTISED_1000baseT_Half)
+ ct1000 |= PHY_M_1000C_AHD;
+ if (sky2->advertising & ADVERTISED_100baseT_Full)
+ adv |= PHY_M_AN_100_FD;
+ if (sky2->advertising & ADVERTISED_100baseT_Half)
+ adv |= PHY_M_AN_100_HD;
+ if (sky2->advertising & ADVERTISED_10baseT_Full)
+ adv |= PHY_M_AN_10_FD;
+ if (sky2->advertising & ADVERTISED_10baseT_Half)
+ adv |= PHY_M_AN_10_HD;
+
+ } else { /* special defines for FIBER (88E1040S only) */
+ if (sky2->advertising & ADVERTISED_1000baseT_Full)
+ adv |= PHY_M_AN_1000X_AFD;
+ if (sky2->advertising & ADVERTISED_1000baseT_Half)
+ adv |= PHY_M_AN_1000X_AHD;
+ }
+
+ /* Restart Auto-negotiation */
+ ctrl |= PHY_CT_ANE | PHY_CT_RE_CFG;
+ } else {
+ /* forced speed/duplex settings */
+ ct1000 = PHY_M_1000C_MSE;
+
+ /* Disable auto update for duplex flow control and duplex */
+ reg |= GM_GPCR_AU_DUP_DIS | GM_GPCR_AU_SPD_DIS;
+
+ switch (sky2->speed) {
+ case SPEED_1000:
+ ctrl |= PHY_CT_SP1000;
+ reg |= GM_GPCR_SPEED_1000;
+ break;
+ case SPEED_100:
+ ctrl |= PHY_CT_SP100;
+ reg |= GM_GPCR_SPEED_100;
+ break;
+ }
+
+ if (sky2->duplex == DUPLEX_FULL) {
+ reg |= GM_GPCR_DUP_FULL;
+ ctrl |= PHY_CT_DUP_MD;
+ } else if (sky2->speed < SPEED_1000)
+ sky2->flow_mode = FC_NONE;
+ }
+
+ if (sky2->flags & SKY2_FLAG_AUTO_PAUSE) {
+ if (sky2_is_copper(hw))
+ adv |= copper_fc_adv[sky2->flow_mode];
+ else
+ adv |= fiber_fc_adv[sky2->flow_mode];
+ } else {
+ reg |= GM_GPCR_AU_FCT_DIS;
+ reg |= gm_fc_disable[sky2->flow_mode];
+
+ /* Forward pause packets to GMAC? */
+ if (sky2->flow_mode & FC_RX)
+ sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_ON);
+ else
+ sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_OFF);
+ }
+
+ gma_write16(hw, port, GM_GP_CTRL, reg);
+
+ if (hw->flags & SKY2_HW_GIGABIT)
+ gm_phy_write(hw, port, PHY_MARV_1000T_CTRL, ct1000);
+
+ gm_phy_write(hw, port, PHY_MARV_AUNE_ADV, adv);
+ gm_phy_write(hw, port, PHY_MARV_CTRL, ctrl);
+
+ /* Setup Phy LED's */
+ ledctrl = PHY_M_LED_PULS_DUR(PULS_170MS);
+ ledover = 0;
+
+ switch (hw->chip_id) {
+ case CHIP_ID_YUKON_FE:
+ /* on 88E3082 these bits are at 11..9 (shifted left) */
+ ledctrl |= PHY_M_LED_BLINK_RT(BLINK_84MS) << 1;
+
+ ctrl = gm_phy_read(hw, port, PHY_MARV_FE_LED_PAR);
+
+ /* delete ACT LED control bits */
+ ctrl &= ~PHY_M_FELP_LED1_MSK;
+ /* change ACT LED control to blink mode */
+ ctrl |= PHY_M_FELP_LED1_CTRL(LED_PAR_CTRL_ACT_BL);
+ gm_phy_write(hw, port, PHY_MARV_FE_LED_PAR, ctrl);
+ break;
+
+ case CHIP_ID_YUKON_FE_P:
+ /* Enable Link Partner Next Page */
+ ctrl = gm_phy_read(hw, port, PHY_MARV_PHY_CTRL);
+ ctrl |= PHY_M_PC_ENA_LIP_NP;
+
+ /* disable Energy Detect and enable scrambler */
+ ctrl &= ~(PHY_M_PC_ENA_ENE_DT | PHY_M_PC_DIS_SCRAMB);
+ gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, ctrl);
+
+ /* set LED2 -> ACT, LED1 -> LINK, LED0 -> SPEED */
+ ctrl = PHY_M_FELP_LED2_CTRL(LED_PAR_CTRL_ACT_BL) |
+ PHY_M_FELP_LED1_CTRL(LED_PAR_CTRL_LINK) |
+ PHY_M_FELP_LED0_CTRL(LED_PAR_CTRL_SPEED);
+
+ gm_phy_write(hw, port, PHY_MARV_FE_LED_PAR, ctrl);
+ break;
+
+ case CHIP_ID_YUKON_XL:
+ pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR);
+
+ /* select page 3 to access LED control register */
+ gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 3);
+
+ /* set LED Function Control register */
+ gm_phy_write(hw, port, PHY_MARV_PHY_CTRL,
+ (PHY_M_LEDC_LOS_CTRL(1) | /* LINK/ACT */
+ PHY_M_LEDC_INIT_CTRL(7) | /* 10 Mbps */
+ PHY_M_LEDC_STA1_CTRL(7) | /* 100 Mbps */
+ PHY_M_LEDC_STA0_CTRL(7))); /* 1000 Mbps */
+
+ /* set Polarity Control register */
+ gm_phy_write(hw, port, PHY_MARV_PHY_STAT,
+ (PHY_M_POLC_LS1_P_MIX(4) |
+ PHY_M_POLC_IS0_P_MIX(4) |
+ PHY_M_POLC_LOS_CTRL(2) |
+ PHY_M_POLC_INIT_CTRL(2) |
+ PHY_M_POLC_STA1_CTRL(2) |
+ PHY_M_POLC_STA0_CTRL(2)));
+
+ /* restore page register */
+ gm_phy_write(hw, port, PHY_MARV_EXT_ADR, pg);
+ break;
+
+ case CHIP_ID_YUKON_EC_U:
+ case CHIP_ID_YUKON_EX:
+ case CHIP_ID_YUKON_SUPR:
+ pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR);
+
+ /* select page 3 to access LED control register */
+ gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 3);
+
+ /* set LED Function Control register */
+ gm_phy_write(hw, port, PHY_MARV_PHY_CTRL,
+ (PHY_M_LEDC_LOS_CTRL(1) | /* LINK/ACT */
+ PHY_M_LEDC_INIT_CTRL(8) | /* 10 Mbps */
+ PHY_M_LEDC_STA1_CTRL(7) | /* 100 Mbps */
+ PHY_M_LEDC_STA0_CTRL(7)));/* 1000 Mbps */
+
+ /* set Blink Rate in LED Timer Control Register */
+ gm_phy_write(hw, port, PHY_MARV_INT_MASK,
+ ledctrl | PHY_M_LED_BLINK_RT(BLINK_84MS));
+ /* restore page register */
+ gm_phy_write(hw, port, PHY_MARV_EXT_ADR, pg);
+ break;
+
+ default:
+ /* set Tx LED (LED_TX) to blink mode on Rx OR Tx activity */
+ ledctrl |= PHY_M_LED_BLINK_RT(BLINK_84MS) | PHY_M_LEDC_TX_CTRL;
+
+ /* turn off the Rx LED (LED_RX) */
+ ledover |= PHY_M_LED_MO_RX(MO_LED_OFF);
+ }
+
+ if (hw->chip_id == CHIP_ID_YUKON_EC_U || hw->chip_id == CHIP_ID_YUKON_UL_2) {
+ /* apply fixes in PHY AFE */
+ gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 255);
+
+ /* increase differential signal amplitude in 10BASE-T */
+ gm_phy_write(hw, port, 0x18, 0xaa99);
+ gm_phy_write(hw, port, 0x17, 0x2011);
+
+ if (hw->chip_id == CHIP_ID_YUKON_EC_U) {
+ /* fix for IEEE A/B Symmetry failure in 1000BASE-T */
+ gm_phy_write(hw, port, 0x18, 0xa204);
+ gm_phy_write(hw, port, 0x17, 0x2002);
+ }
+
+ /* set page register to 0 */
+ gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 0);
+ } else if (hw->chip_id == CHIP_ID_YUKON_FE_P &&
+ hw->chip_rev == CHIP_REV_YU_FE2_A0) {
+ /* apply workaround for integrated resistors calibration */
+ gm_phy_write(hw, port, PHY_MARV_PAGE_ADDR, 17);
+ gm_phy_write(hw, port, PHY_MARV_PAGE_DATA, 0x3f60);
+ } else if (hw->chip_id == CHIP_ID_YUKON_OPT && hw->chip_rev == 0) {
+ /* apply fixes in PHY AFE */
+ gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 0x00ff);
+
+ /* apply RDAC termination workaround */
+ gm_phy_write(hw, port, 24, 0x2800);
+ gm_phy_write(hw, port, 23, 0x2001);
+
+ /* set page register back to 0 */
+ gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 0);
+ } else if (hw->chip_id != CHIP_ID_YUKON_EX &&
+ hw->chip_id < CHIP_ID_YUKON_SUPR) {
+ /* no effect on Yukon-XL */
+ gm_phy_write(hw, port, PHY_MARV_LED_CTRL, ledctrl);
+
+ if (!(sky2->flags & SKY2_FLAG_AUTO_SPEED) ||
+ sky2->speed == SPEED_100) {
+ /* turn on 100 Mbps LED (LED_LINK100) */
+ ledover |= PHY_M_LED_MO_100(MO_LED_ON);
+ }
+
+ if (ledover)
+ gm_phy_write(hw, port, PHY_MARV_LED_OVER, ledover);
+
+ } else if (hw->chip_id == CHIP_ID_YUKON_PRM &&
+ (sky2_read8(hw, B2_MAC_CFG) & 0xf) == 0x7) {
+ int i;
+ /* This a phy register setup workaround copied from vendor driver. */
+ static const struct {
+ u16 reg, val;
+ } eee_afe[] = {
+ { 0x156, 0x58ce },
+ { 0x153, 0x99eb },
+ { 0x141, 0x8064 },
+ /* { 0x155, 0x130b },*/
+ { 0x000, 0x0000 },
+ { 0x151, 0x8433 },
+ { 0x14b, 0x8c44 },
+ { 0x14c, 0x0f90 },
+ { 0x14f, 0x39aa },
+ /* { 0x154, 0x2f39 },*/
+ { 0x14d, 0xba33 },
+ { 0x144, 0x0048 },
+ { 0x152, 0x2010 },
+ /* { 0x158, 0x1223 },*/
+ { 0x140, 0x4444 },
+ { 0x154, 0x2f3b },
+ { 0x158, 0xb203 },
+ { 0x157, 0x2029 },
+ };
+
+ /* Start Workaround for OptimaEEE Rev.Z0 */
+ gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 0x00fb);
+
+ gm_phy_write(hw, port, 1, 0x4099);
+ gm_phy_write(hw, port, 3, 0x1120);
+ gm_phy_write(hw, port, 11, 0x113c);
+ gm_phy_write(hw, port, 14, 0x8100);
+ gm_phy_write(hw, port, 15, 0x112a);
+ gm_phy_write(hw, port, 17, 0x1008);
+
+ gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 0x00fc);
+ gm_phy_write(hw, port, 1, 0x20b0);
+
+ gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 0x00ff);
+
+ for (i = 0; i < ARRAY_SIZE(eee_afe); i++) {
+ /* apply AFE settings */
+ gm_phy_write(hw, port, 17, eee_afe[i].val);
+ gm_phy_write(hw, port, 16, eee_afe[i].reg | 1u<<13);
+ }
+
+ /* End Workaround for OptimaEEE */
+ gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 0);
+
+ /* Enable 10Base-Te (EEE) */
+ if (hw->chip_id >= CHIP_ID_YUKON_PRM) {
+ reg = gm_phy_read(hw, port, PHY_MARV_EXT_CTRL);
+ gm_phy_write(hw, port, PHY_MARV_EXT_CTRL,
+ reg | PHY_M_10B_TE_ENABLE);
+ }
+ }
+
+ /* Enable phy interrupt on auto-negotiation complete (or link up) */
+ if (sky2->flags & SKY2_FLAG_AUTO_SPEED)
+ gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_IS_AN_COMPL);
+ else
+ gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_DEF_MSK);
+}
+
+static const u32 phy_power[] = { PCI_Y2_PHY1_POWD, PCI_Y2_PHY2_POWD };
+static const u32 coma_mode[] = { PCI_Y2_PHY1_COMA, PCI_Y2_PHY2_COMA };
+
+static void sky2_phy_power_up(struct sky2_hw *hw, unsigned port)
+{
+ u32 reg1;
+
+ sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON);
+ reg1 = sky2_pci_read32(hw, PCI_DEV_REG1);
+ reg1 &= ~phy_power[port];
+
+ if (hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev > CHIP_REV_YU_XL_A1)
+ reg1 |= coma_mode[port];
+
+ sky2_pci_write32(hw, PCI_DEV_REG1, reg1);
+ sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF);
+ sky2_pci_read32(hw, PCI_DEV_REG1);
+
+ if (hw->chip_id == CHIP_ID_YUKON_FE)
+ gm_phy_write(hw, port, PHY_MARV_CTRL, PHY_CT_ANE);
+ else if (hw->flags & SKY2_HW_ADV_POWER_CTL)
+ sky2_write8(hw, SK_REG(port, GPHY_CTRL), GPC_RST_CLR);
+}
+
+static void sky2_phy_power_down(struct sky2_hw *hw, unsigned port)
+{
+ u32 reg1;
+ u16 ctrl;
+
+ /* release GPHY Control reset */
+ sky2_write8(hw, SK_REG(port, GPHY_CTRL), GPC_RST_CLR);
+
+ /* release GMAC reset */
+ sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_RST_CLR);
+
+ if (hw->flags & SKY2_HW_NEWER_PHY) {
+ /* select page 2 to access MAC control register */
+ gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 2);
+
+ ctrl = gm_phy_read(hw, port, PHY_MARV_PHY_CTRL);
+ /* allow GMII Power Down */
+ ctrl &= ~PHY_M_MAC_GMIF_PUP;
+ gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, ctrl);
+
+ /* set page register back to 0 */
+ gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 0);
+ }
+
+ /* setup General Purpose Control Register */
+ gma_write16(hw, port, GM_GP_CTRL,
+ GM_GPCR_FL_PASS | GM_GPCR_SPEED_100 |
+ GM_GPCR_AU_DUP_DIS | GM_GPCR_AU_FCT_DIS |
+ GM_GPCR_AU_SPD_DIS);
+
+ if (hw->chip_id != CHIP_ID_YUKON_EC) {
+ if (hw->chip_id == CHIP_ID_YUKON_EC_U) {
+ /* select page 2 to access MAC control register */
+ gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 2);
+
+ ctrl = gm_phy_read(hw, port, PHY_MARV_PHY_CTRL);
+ /* enable Power Down */
+ ctrl |= PHY_M_PC_POW_D_ENA;
+ gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, ctrl);
+
+ /* set page register back to 0 */
+ gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 0);
+ }
+
+ /* set IEEE compatible Power Down Mode (dev. #4.99) */
+ gm_phy_write(hw, port, PHY_MARV_CTRL, PHY_CT_PDOWN);
+ }
+
+ sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON);
+ reg1 = sky2_pci_read32(hw, PCI_DEV_REG1);
+ reg1 |= phy_power[port]; /* set PHY to PowerDown/COMA Mode */
+ sky2_pci_write32(hw, PCI_DEV_REG1, reg1);
+ sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF);
+}
+
+/* configure IPG according to used link speed */
+static void sky2_set_ipg(struct sky2_port *sky2)
+{
+ u16 reg;
+
+ reg = gma_read16(sky2->hw, sky2->port, GM_SERIAL_MODE);
+ reg &= ~GM_SMOD_IPG_MSK;
+ if (sky2->speed > SPEED_100)
+ reg |= IPG_DATA_VAL(IPG_DATA_DEF_1000);
+ else
+ reg |= IPG_DATA_VAL(IPG_DATA_DEF_10_100);
+ gma_write16(sky2->hw, sky2->port, GM_SERIAL_MODE, reg);
+}
+
+/* Enable Rx/Tx */
+static void sky2_enable_rx_tx(struct sky2_port *sky2)
+{
+ struct sky2_hw *hw = sky2->hw;
+ unsigned port = sky2->port;
+ u16 reg;
+
+ reg = gma_read16(hw, port, GM_GP_CTRL);
+ reg |= GM_GPCR_RX_ENA | GM_GPCR_TX_ENA;
+ gma_write16(hw, port, GM_GP_CTRL, reg);
+}
+
+/* Force a renegotiation */
+static void sky2_phy_reinit(struct sky2_port *sky2)
+{
+ spin_lock_bh(&sky2->phy_lock);
+ sky2_phy_init(sky2->hw, sky2->port);
+ sky2_enable_rx_tx(sky2);
+ spin_unlock_bh(&sky2->phy_lock);
+}
+
+/* Put device in state to listen for Wake On Lan */
+static void sky2_wol_init(struct sky2_port *sky2)
+{
+ struct sky2_hw *hw = sky2->hw;
+ unsigned port = sky2->port;
+ enum flow_control save_mode;
+ u16 ctrl;
+
+ /* Bring hardware out of reset */
+ sky2_write16(hw, B0_CTST, CS_RST_CLR);
+ sky2_write16(hw, SK_REG(port, GMAC_LINK_CTRL), GMLC_RST_CLR);
+
+ sky2_write8(hw, SK_REG(port, GPHY_CTRL), GPC_RST_CLR);
+ sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_RST_CLR);
+
+ /* Force to 10/100
+ * sky2_reset will re-enable on resume
+ */
+ save_mode = sky2->flow_mode;
+ ctrl = sky2->advertising;
+
+ sky2->advertising &= ~(ADVERTISED_1000baseT_Half|ADVERTISED_1000baseT_Full);
+ sky2->flow_mode = FC_NONE;
+
+ spin_lock_bh(&sky2->phy_lock);
+ sky2_phy_power_up(hw, port);
+ sky2_phy_init(hw, port);
+ spin_unlock_bh(&sky2->phy_lock);
+
+ sky2->flow_mode = save_mode;
+ sky2->advertising = ctrl;
+
+ /* Set GMAC to no flow control and auto update for speed/duplex */
+ gma_write16(hw, port, GM_GP_CTRL,
+ GM_GPCR_FC_TX_DIS|GM_GPCR_TX_ENA|GM_GPCR_RX_ENA|
+ GM_GPCR_DUP_FULL|GM_GPCR_FC_RX_DIS|GM_GPCR_AU_FCT_DIS);
+
+ /* Set WOL address */
+ memcpy_toio(hw->regs + WOL_REGS(port, WOL_MAC_ADDR),
+ sky2->netdev->dev_addr, ETH_ALEN);
+
+ /* Turn on appropriate WOL control bits */
+ sky2_write16(hw, WOL_REGS(port, WOL_CTRL_STAT), WOL_CTL_CLEAR_RESULT);
+ ctrl = 0;
+ if (sky2->wol & WAKE_PHY)
+ ctrl |= WOL_CTL_ENA_PME_ON_LINK_CHG|WOL_CTL_ENA_LINK_CHG_UNIT;
+ else
+ ctrl |= WOL_CTL_DIS_PME_ON_LINK_CHG|WOL_CTL_DIS_LINK_CHG_UNIT;
+
+ if (sky2->wol & WAKE_MAGIC)
+ ctrl |= WOL_CTL_ENA_PME_ON_MAGIC_PKT|WOL_CTL_ENA_MAGIC_PKT_UNIT;
+ else
+ ctrl |= WOL_CTL_DIS_PME_ON_MAGIC_PKT|WOL_CTL_DIS_MAGIC_PKT_UNIT;
+
+ ctrl |= WOL_CTL_DIS_PME_ON_PATTERN|WOL_CTL_DIS_PATTERN_UNIT;
+ sky2_write16(hw, WOL_REGS(port, WOL_CTRL_STAT), ctrl);
+
+ /* Disable PiG firmware */
+ sky2_write16(hw, B0_CTST, Y2_HW_WOL_OFF);
+
+ /* Needed by some broken BIOSes, use PCI rather than PCI-e for WOL */
+ if (legacy_pme) {
+ u32 reg1 = sky2_pci_read32(hw, PCI_DEV_REG1);
+ reg1 |= PCI_Y2_PME_LEGACY;
+ sky2_pci_write32(hw, PCI_DEV_REG1, reg1);
+ }
+
+ /* block receiver */
+ sky2_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_SET);
+ sky2_read32(hw, B0_CTST);
+}
+
+static void sky2_set_tx_stfwd(struct sky2_hw *hw, unsigned port)
+{
+ struct net_device *dev = hw->dev[port];
+
+ if ( (hw->chip_id == CHIP_ID_YUKON_EX &&
+ hw->chip_rev != CHIP_REV_YU_EX_A0) ||
+ hw->chip_id >= CHIP_ID_YUKON_FE_P) {
+ /* Yukon-Extreme B0 and further Extreme devices */
+ sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T), TX_STFW_ENA);
+ } else if (dev->mtu > ETH_DATA_LEN) {
+ /* set Tx GMAC FIFO Almost Empty Threshold */
+ sky2_write32(hw, SK_REG(port, TX_GMF_AE_THR),
+ (ECU_JUMBO_WM << 16) | ECU_AE_THR);
+
+ sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T), TX_STFW_DIS);
+ } else
+ sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T), TX_STFW_ENA);
+}
+
+static void sky2_mac_init(struct sky2_hw *hw, unsigned port)
+{
+ struct sky2_port *sky2 = netdev_priv(hw->dev[port]);
+ u16 reg;
+ u32 rx_reg;
+ int i;
+ const u8 *addr = hw->dev[port]->dev_addr;
+
+ sky2_write8(hw, SK_REG(port, GPHY_CTRL), GPC_RST_SET);
+ sky2_write8(hw, SK_REG(port, GPHY_CTRL), GPC_RST_CLR);
+
+ sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_RST_CLR);
+
+ if (hw->chip_id == CHIP_ID_YUKON_XL &&
+ hw->chip_rev == CHIP_REV_YU_XL_A0 &&
+ port == 1) {
+ /* WA DEV_472 -- looks like crossed wires on port 2 */
+ /* clear GMAC 1 Control reset */
+ sky2_write8(hw, SK_REG(0, GMAC_CTRL), GMC_RST_CLR);
+ do {
+ sky2_write8(hw, SK_REG(1, GMAC_CTRL), GMC_RST_SET);
+ sky2_write8(hw, SK_REG(1, GMAC_CTRL), GMC_RST_CLR);
+ } while (gm_phy_read(hw, 1, PHY_MARV_ID0) != PHY_MARV_ID0_VAL ||
+ gm_phy_read(hw, 1, PHY_MARV_ID1) != PHY_MARV_ID1_Y2 ||
+ gm_phy_read(hw, 1, PHY_MARV_INT_MASK) != 0);
+ }
+
+ sky2_read16(hw, SK_REG(port, GMAC_IRQ_SRC));
+
+ /* Enable Transmit FIFO Underrun */
+ sky2_write8(hw, SK_REG(port, GMAC_IRQ_MSK), GMAC_DEF_MSK);
+
+ spin_lock_bh(&sky2->phy_lock);
+ sky2_phy_power_up(hw, port);
+ sky2_phy_init(hw, port);
+ spin_unlock_bh(&sky2->phy_lock);
+
+ /* MIB clear */
+ reg = gma_read16(hw, port, GM_PHY_ADDR);
+ gma_write16(hw, port, GM_PHY_ADDR, reg | GM_PAR_MIB_CLR);
+
+ for (i = GM_MIB_CNT_BASE; i <= GM_MIB_CNT_END; i += 4)
+ gma_read16(hw, port, i);
+ gma_write16(hw, port, GM_PHY_ADDR, reg);
+
+ /* transmit control */
+ gma_write16(hw, port, GM_TX_CTRL, TX_COL_THR(TX_COL_DEF));
+
+ /* receive control reg: unicast + multicast + no FCS */
+ gma_write16(hw, port, GM_RX_CTRL,
+ GM_RXCR_UCF_ENA | GM_RXCR_CRC_DIS | GM_RXCR_MCF_ENA);
+
+ /* transmit flow control */
+ gma_write16(hw, port, GM_TX_FLOW_CTRL, 0xffff);
+
+ /* transmit parameter */
+ gma_write16(hw, port, GM_TX_PARAM,
+ TX_JAM_LEN_VAL(TX_JAM_LEN_DEF) |
+ TX_JAM_IPG_VAL(TX_JAM_IPG_DEF) |
+ TX_IPG_JAM_DATA(TX_IPG_JAM_DEF) |
+ TX_BACK_OFF_LIM(TX_BOF_LIM_DEF));
+
+ /* serial mode register */
+ reg = DATA_BLIND_VAL(DATA_BLIND_DEF) |
+ GM_SMOD_VLAN_ENA | IPG_DATA_VAL(IPG_DATA_DEF_1000);
+
+ if (hw->dev[port]->mtu > ETH_DATA_LEN)
+ reg |= GM_SMOD_JUMBO_ENA;
+
+ if (hw->chip_id == CHIP_ID_YUKON_EC_U &&
+ hw->chip_rev == CHIP_REV_YU_EC_U_B1)
+ reg |= GM_NEW_FLOW_CTRL;
+
+ gma_write16(hw, port, GM_SERIAL_MODE, reg);
+
+ /* virtual address for data */
+ gma_set_addr(hw, port, GM_SRC_ADDR_2L, addr);
+
+ /* physical address: used for pause frames */
+ gma_set_addr(hw, port, GM_SRC_ADDR_1L, addr);
+
+ /* ignore counter overflows */
+ gma_write16(hw, port, GM_TX_IRQ_MSK, 0);
+ gma_write16(hw, port, GM_RX_IRQ_MSK, 0);
+ gma_write16(hw, port, GM_TR_IRQ_MSK, 0);
+
+ /* Configure Rx MAC FIFO */
+ sky2_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_CLR);
+ rx_reg = GMF_OPER_ON | GMF_RX_F_FL_ON;
+ if (hw->chip_id == CHIP_ID_YUKON_EX ||
+ hw->chip_id == CHIP_ID_YUKON_FE_P)
+ rx_reg |= GMF_RX_OVER_ON;
+
+ sky2_write32(hw, SK_REG(port, RX_GMF_CTRL_T), rx_reg);
+
+ if (hw->chip_id == CHIP_ID_YUKON_XL) {
+ /* Hardware errata - clear flush mask */
+ sky2_write16(hw, SK_REG(port, RX_GMF_FL_MSK), 0);
+ } else {
+ /* Flush Rx MAC FIFO on any flow control or error */
+ sky2_write16(hw, SK_REG(port, RX_GMF_FL_MSK), GMR_FS_ANY_ERR);
+ }
+
+ /* Set threshold to 0xa (64 bytes) + 1 to workaround pause bug */
+ reg = RX_GMF_FL_THR_DEF + 1;
+ /* Another magic mystery workaround from sk98lin */
+ if (hw->chip_id == CHIP_ID_YUKON_FE_P &&
+ hw->chip_rev == CHIP_REV_YU_FE2_A0)
+ reg = 0x178;
+ sky2_write16(hw, SK_REG(port, RX_GMF_FL_THR), reg);
+
+ /* Configure Tx MAC FIFO */
+ sky2_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_RST_CLR);
+ sky2_write16(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_OPER_ON);
+
+ /* On chips without ram buffer, pause is controlled by MAC level */
+ if (!(hw->flags & SKY2_HW_RAM_BUFFER)) {
+ /* Pause threshold is scaled by 8 in bytes */
+ if (hw->chip_id == CHIP_ID_YUKON_FE_P &&
+ hw->chip_rev == CHIP_REV_YU_FE2_A0)
+ reg = 1568 / 8;
+ else
+ reg = 1024 / 8;
+ sky2_write16(hw, SK_REG(port, RX_GMF_UP_THR), reg);
+ sky2_write16(hw, SK_REG(port, RX_GMF_LP_THR), 768 / 8);
+
+ sky2_set_tx_stfwd(hw, port);
+ }
+
+ if (hw->chip_id == CHIP_ID_YUKON_FE_P &&
+ hw->chip_rev == CHIP_REV_YU_FE2_A0) {
+ /* disable dynamic watermark */
+ reg = sky2_read16(hw, SK_REG(port, TX_GMF_EA));
+ reg &= ~TX_DYN_WM_ENA;
+ sky2_write16(hw, SK_REG(port, TX_GMF_EA), reg);
+ }
+}
+
+/* Assign Ram Buffer allocation to queue */
+static void sky2_ramset(struct sky2_hw *hw, u16 q, u32 start, u32 space)
+{
+ u32 end;
+
+ /* convert from K bytes to qwords used for hw register */
+ start *= 1024/8;
+ space *= 1024/8;
+ end = start + space - 1;
+
+ sky2_write8(hw, RB_ADDR(q, RB_CTRL), RB_RST_CLR);
+ sky2_write32(hw, RB_ADDR(q, RB_START), start);
+ sky2_write32(hw, RB_ADDR(q, RB_END), end);
+ sky2_write32(hw, RB_ADDR(q, RB_WP), start);
+ sky2_write32(hw, RB_ADDR(q, RB_RP), start);
+
+ if (q == Q_R1 || q == Q_R2) {
+ u32 tp = space - space/4;
+
+ /* On receive queue's set the thresholds
+ * give receiver priority when > 3/4 full
+ * send pause when down to 2K
+ */
+ sky2_write32(hw, RB_ADDR(q, RB_RX_UTHP), tp);
+ sky2_write32(hw, RB_ADDR(q, RB_RX_LTHP), space/2);
+
+ tp = space - 8192/8;
+ sky2_write32(hw, RB_ADDR(q, RB_RX_UTPP), tp);
+ sky2_write32(hw, RB_ADDR(q, RB_RX_LTPP), space/4);
+ } else {
+ /* Enable store & forward on Tx queue's because
+ * Tx FIFO is only 1K on Yukon
+ */
+ sky2_write8(hw, RB_ADDR(q, RB_CTRL), RB_ENA_STFWD);
+ }
+
+ sky2_write8(hw, RB_ADDR(q, RB_CTRL), RB_ENA_OP_MD);
+ sky2_read8(hw, RB_ADDR(q, RB_CTRL));
+}
+
+/* Setup Bus Memory Interface */
+static void sky2_qset(struct sky2_hw *hw, u16 q)
+{
+ sky2_write32(hw, Q_ADDR(q, Q_CSR), BMU_CLR_RESET);
+ sky2_write32(hw, Q_ADDR(q, Q_CSR), BMU_OPER_INIT);
+ sky2_write32(hw, Q_ADDR(q, Q_CSR), BMU_FIFO_OP_ON);
+ sky2_write32(hw, Q_ADDR(q, Q_WM), BMU_WM_DEFAULT);
+}
+
+/* Setup prefetch unit registers. This is the interface between
+ * hardware and driver list elements
+ */
+static void sky2_prefetch_init(struct sky2_hw *hw, u32 qaddr,
+ dma_addr_t addr, u32 last)
+{
+ sky2_write32(hw, Y2_QADDR(qaddr, PREF_UNIT_CTRL), PREF_UNIT_RST_SET);
+ sky2_write32(hw, Y2_QADDR(qaddr, PREF_UNIT_CTRL), PREF_UNIT_RST_CLR);
+ sky2_write32(hw, Y2_QADDR(qaddr, PREF_UNIT_ADDR_HI), upper_32_bits(addr));
+ sky2_write32(hw, Y2_QADDR(qaddr, PREF_UNIT_ADDR_LO), lower_32_bits(addr));
+ sky2_write16(hw, Y2_QADDR(qaddr, PREF_UNIT_LAST_IDX), last);
+ sky2_write32(hw, Y2_QADDR(qaddr, PREF_UNIT_CTRL), PREF_UNIT_OP_ON);
+
+ sky2_read32(hw, Y2_QADDR(qaddr, PREF_UNIT_CTRL));
+}
+
+static inline struct sky2_tx_le *get_tx_le(struct sky2_port *sky2, u16 *slot)
+{
+ struct sky2_tx_le *le = sky2->tx_le + *slot;
+
+ *slot = RING_NEXT(*slot, sky2->tx_ring_size);
+ le->ctrl = 0;
+ return le;
+}
+
+static void tx_init(struct sky2_port *sky2)
+{
+ struct sky2_tx_le *le;
+
+ sky2->tx_prod = sky2->tx_cons = 0;
+ sky2->tx_tcpsum = 0;
+ sky2->tx_last_mss = 0;
+ netdev_reset_queue(sky2->netdev);
+
+ le = get_tx_le(sky2, &sky2->tx_prod);
+ le->addr = 0;
+ le->opcode = OP_ADDR64 | HW_OWNER;
+ sky2->tx_last_upper = 0;
+}
+
+/* Update chip's next pointer */
+static inline void sky2_put_idx(struct sky2_hw *hw, unsigned q, u16 idx)
+{
+ /* Make sure write' to descriptors are complete before we tell hardware */
+ wmb();
+ sky2_write16(hw, Y2_QADDR(q, PREF_UNIT_PUT_IDX), idx);
+
+ /* Synchronize I/O on since next processor may write to tail */
+ mmiowb();
+}
+
+
+static inline struct sky2_rx_le *sky2_next_rx(struct sky2_port *sky2)
+{
+ struct sky2_rx_le *le = sky2->rx_le + sky2->rx_put;
+ sky2->rx_put = RING_NEXT(sky2->rx_put, RX_LE_SIZE);
+ le->ctrl = 0;
+ return le;
+}
+
+static unsigned sky2_get_rx_threshold(struct sky2_port *sky2)
+{
+ unsigned size;
+
+ /* Space needed for frame data + headers rounded up */
+ size = roundup(sky2->netdev->mtu + ETH_HLEN + VLAN_HLEN, 8);
+
+ /* Stopping point for hardware truncation */
+ return (size - 8) / sizeof(u32);
+}
+
+static unsigned sky2_get_rx_data_size(struct sky2_port *sky2)
+{
+ struct rx_ring_info *re;
+ unsigned size;
+
+ /* Space needed for frame data + headers rounded up */
+ size = roundup(sky2->netdev->mtu + ETH_HLEN + VLAN_HLEN, 8);
+
+ sky2->rx_nfrags = size >> PAGE_SHIFT;
+ BUG_ON(sky2->rx_nfrags > ARRAY_SIZE(re->frag_addr));
+
+ /* Compute residue after pages */
+ size -= sky2->rx_nfrags << PAGE_SHIFT;
+
+ /* Optimize to handle small packets and headers */
+ if (size < copybreak)
+ size = copybreak;
+ if (size < ETH_HLEN)
+ size = ETH_HLEN;
+
+ return size;
+}
+
+/* Build description to hardware for one receive segment */
+static void sky2_rx_add(struct sky2_port *sky2, u8 op,
+ dma_addr_t map, unsigned len)
+{
+ struct sky2_rx_le *le;
+
+ if (sizeof(dma_addr_t) > sizeof(u32)) {
+ le = sky2_next_rx(sky2);
+ le->addr = cpu_to_le32(upper_32_bits(map));
+ le->opcode = OP_ADDR64 | HW_OWNER;
+ }
+
+ le = sky2_next_rx(sky2);
+ le->addr = cpu_to_le32(lower_32_bits(map));
+ le->length = cpu_to_le16(len);
+ le->opcode = op | HW_OWNER;
+}
+
+/* Build description to hardware for one possibly fragmented skb */
+static void sky2_rx_submit(struct sky2_port *sky2,
+ const struct rx_ring_info *re)
+{
+ int i;
+
+ sky2_rx_add(sky2, OP_PACKET, re->data_addr, sky2->rx_data_size);
+
+ for (i = 0; i < skb_shinfo(re->skb)->nr_frags; i++)
+ sky2_rx_add(sky2, OP_BUFFER, re->frag_addr[i], PAGE_SIZE);
+}
+
+
+static int sky2_rx_map_skb(struct pci_dev *pdev, struct rx_ring_info *re,
+ unsigned size)
+{
+ struct sk_buff *skb = re->skb;
+ int i;
+
+ re->data_addr = pci_map_single(pdev, skb->data, size, PCI_DMA_FROMDEVICE);
+ if (pci_dma_mapping_error(pdev, re->data_addr))
+ goto mapping_error;
+
+ dma_unmap_len_set(re, data_size, size);
+
+ for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
+ const skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
+
+ re->frag_addr[i] = skb_frag_dma_map(&pdev->dev, frag, 0,
+ skb_frag_size(frag),
+ DMA_FROM_DEVICE);
+
+ if (dma_mapping_error(&pdev->dev, re->frag_addr[i]))
+ goto map_page_error;
+ }
+ return 0;
+
+map_page_error:
+ while (--i >= 0) {
+ pci_unmap_page(pdev, re->frag_addr[i],
+ skb_frag_size(&skb_shinfo(skb)->frags[i]),
+ PCI_DMA_FROMDEVICE);
+ }
+
+ pci_unmap_single(pdev, re->data_addr, dma_unmap_len(re, data_size),
+ PCI_DMA_FROMDEVICE);
+
+mapping_error:
+ if (net_ratelimit())
+ dev_warn(&pdev->dev, "%s: rx mapping error\n",
+ skb->dev->name);
+ return -EIO;
+}
+
+static void sky2_rx_unmap_skb(struct pci_dev *pdev, struct rx_ring_info *re)
+{
+ struct sk_buff *skb = re->skb;
+ int i;
+
+ pci_unmap_single(pdev, re->data_addr, dma_unmap_len(re, data_size),
+ PCI_DMA_FROMDEVICE);
+
+ for (i = 0; i < skb_shinfo(skb)->nr_frags; i++)
+ pci_unmap_page(pdev, re->frag_addr[i],
+ skb_frag_size(&skb_shinfo(skb)->frags[i]),
+ PCI_DMA_FROMDEVICE);
+}
+
+/* Tell chip where to start receive checksum.
+ * Actually has two checksums, but set both same to avoid possible byte
+ * order problems.
+ */
+static void rx_set_checksum(struct sky2_port *sky2)
+{
+ struct sky2_rx_le *le = sky2_next_rx(sky2);
+
+ le->addr = cpu_to_le32((ETH_HLEN << 16) | ETH_HLEN);
+ le->ctrl = 0;
+ le->opcode = OP_TCPSTART | HW_OWNER;
+
+ sky2_write32(sky2->hw,
+ Q_ADDR(rxqaddr[sky2->port], Q_CSR),
+ (sky2->netdev->features & NETIF_F_RXCSUM)
+ ? BMU_ENA_RX_CHKSUM : BMU_DIS_RX_CHKSUM);
+}
+
+/* Enable/disable receive hash calculation (RSS) */
+static void rx_set_rss(struct net_device *dev, netdev_features_t features)
+{
+ struct sky2_port *sky2 = netdev_priv(dev);
+ struct sky2_hw *hw = sky2->hw;
+ int i, nkeys = 4;
+
+ /* Supports IPv6 and other modes */
+ if (hw->flags & SKY2_HW_NEW_LE) {
+ nkeys = 10;
+ sky2_write32(hw, SK_REG(sky2->port, RSS_CFG), HASH_ALL);
+ }
+
+ /* Program RSS initial values */
+ if (features & NETIF_F_RXHASH) {
+ u32 rss_key[10];
+
+ netdev_rss_key_fill(rss_key, sizeof(rss_key));
+ for (i = 0; i < nkeys; i++)
+ sky2_write32(hw, SK_REG(sky2->port, RSS_KEY + i * 4),
+ rss_key[i]);
+
+ /* Need to turn on (undocumented) flag to make hashing work */
+ sky2_write32(hw, SK_REG(sky2->port, RX_GMF_CTRL_T),
+ RX_STFW_ENA);
+
+ sky2_write32(hw, Q_ADDR(rxqaddr[sky2->port], Q_CSR),
+ BMU_ENA_RX_RSS_HASH);
+ } else
+ sky2_write32(hw, Q_ADDR(rxqaddr[sky2->port], Q_CSR),
+ BMU_DIS_RX_RSS_HASH);
+}
+
+/*
+ * The RX Stop command will not work for Yukon-2 if the BMU does not
+ * reach the end of packet and since we can't make sure that we have
+ * incoming data, we must reset the BMU while it is not doing a DMA
+ * transfer. Since it is possible that the RX path is still active,
+ * the RX RAM buffer will be stopped first, so any possible incoming
+ * data will not trigger a DMA. After the RAM buffer is stopped, the
+ * BMU is polled until any DMA in progress is ended and only then it
+ * will be reset.
+ */
+static void sky2_rx_stop(struct sky2_port *sky2)
+{
+ struct sky2_hw *hw = sky2->hw;
+ unsigned rxq = rxqaddr[sky2->port];
+ int i;
+
+ /* disable the RAM Buffer receive queue */
+ sky2_write8(hw, RB_ADDR(rxq, RB_CTRL), RB_DIS_OP_MD);
+
+ for (i = 0; i < 0xffff; i++)
+ if (sky2_read8(hw, RB_ADDR(rxq, Q_RSL))
+ == sky2_read8(hw, RB_ADDR(rxq, Q_RL)))
+ goto stopped;
+
+ netdev_warn(sky2->netdev, "receiver stop failed\n");
+stopped:
+ sky2_write32(hw, Q_ADDR(rxq, Q_CSR), BMU_RST_SET | BMU_FIFO_RST);
+
+ /* reset the Rx prefetch unit */
+ sky2_write32(hw, Y2_QADDR(rxq, PREF_UNIT_CTRL), PREF_UNIT_RST_SET);
+ mmiowb();
+}
+
+/* Clean out receive buffer area, assumes receiver hardware stopped */
+static void sky2_rx_clean(struct sky2_port *sky2)
+{
+ unsigned i;
+
+ if (sky2->rx_le)
+ memset(sky2->rx_le, 0, RX_LE_BYTES);
+
+ for (i = 0; i < sky2->rx_pending; i++) {
+ struct rx_ring_info *re = sky2->rx_ring + i;
+
+ if (re->skb) {
+ sky2_rx_unmap_skb(sky2->hw->pdev, re);
+ kfree_skb(re->skb);
+ re->skb = NULL;
+ }
+ }
+}
+
+/* Basic MII support */
+static int sky2_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
+{
+ struct mii_ioctl_data *data = if_mii(ifr);
+ struct sky2_port *sky2 = netdev_priv(dev);
+ struct sky2_hw *hw = sky2->hw;
+ int err = -EOPNOTSUPP;
+
+ if (!netif_running(dev))
+ return -ENODEV; /* Phy still in reset */
+
+ switch (cmd) {
+ case SIOCGMIIPHY:
+ data->phy_id = PHY_ADDR_MARV;
+
+ /* fallthru */
+ case SIOCGMIIREG: {
+ u16 val = 0;
+
+ spin_lock_bh(&sky2->phy_lock);
+ err = __gm_phy_read(hw, sky2->port, data->reg_num & 0x1f, &val);
+ spin_unlock_bh(&sky2->phy_lock);
+
+ data->val_out = val;
+ break;
+ }
+
+ case SIOCSMIIREG:
+ spin_lock_bh(&sky2->phy_lock);
+ err = gm_phy_write(hw, sky2->port, data->reg_num & 0x1f,
+ data->val_in);
+ spin_unlock_bh(&sky2->phy_lock);
+ break;
+ }
+ return err;
+}
+
+#define SKY2_VLAN_OFFLOADS (NETIF_F_IP_CSUM | NETIF_F_SG | NETIF_F_TSO)
+
+static void sky2_vlan_mode(struct net_device *dev, netdev_features_t features)
+{
+ struct sky2_port *sky2 = netdev_priv(dev);
+ struct sky2_hw *hw = sky2->hw;
+ u16 port = sky2->port;
+
+ if (features & NETIF_F_HW_VLAN_CTAG_RX)
+ sky2_write32(hw, SK_REG(port, RX_GMF_CTRL_T),
+ RX_VLAN_STRIP_ON);
+ else
+ sky2_write32(hw, SK_REG(port, RX_GMF_CTRL_T),
+ RX_VLAN_STRIP_OFF);
+
+ if (features & NETIF_F_HW_VLAN_CTAG_TX) {
+ sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T),
+ TX_VLAN_TAG_ON);
+
+ dev->vlan_features |= SKY2_VLAN_OFFLOADS;
+ } else {
+ sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T),
+ TX_VLAN_TAG_OFF);
+
+ /* Can't do transmit offload of vlan without hw vlan */
+ dev->vlan_features &= ~SKY2_VLAN_OFFLOADS;
+ }
+}
+
+/* Amount of required worst case padding in rx buffer */
+static inline unsigned sky2_rx_pad(const struct sky2_hw *hw)
+{
+ return (hw->flags & SKY2_HW_RAM_BUFFER) ? 8 : 2;
+}
+
+/*
+ * Allocate an skb for receiving. If the MTU is large enough
+ * make the skb non-linear with a fragment list of pages.
+ */
+static struct sk_buff *sky2_rx_alloc(struct sky2_port *sky2, gfp_t gfp)
+{
+ struct sk_buff *skb;
+ int i;
+
+ skb = __netdev_alloc_skb(sky2->netdev,
+ sky2->rx_data_size + sky2_rx_pad(sky2->hw),
+ gfp);
+ if (!skb)
+ goto nomem;
+
+ if (sky2->hw->flags & SKY2_HW_RAM_BUFFER) {
+ unsigned char *start;
+ /*
+ * Workaround for a bug in FIFO that cause hang
+ * if the FIFO if the receive buffer is not 64 byte aligned.
+ * The buffer returned from netdev_alloc_skb is
+ * aligned except if slab debugging is enabled.
+ */
+ start = PTR_ALIGN(skb->data, 8);
+ skb_reserve(skb, start - skb->data);
+ } else
+ skb_reserve(skb, NET_IP_ALIGN);
+
+ for (i = 0; i < sky2->rx_nfrags; i++) {
+ struct page *page = alloc_page(gfp);
+
+ if (!page)
+ goto free_partial;
+ skb_fill_page_desc(skb, i, page, 0, PAGE_SIZE);
+ }
+
+ return skb;
+free_partial:
+ kfree_skb(skb);
+nomem:
+ return NULL;
+}
+
+static inline void sky2_rx_update(struct sky2_port *sky2, unsigned rxq)
+{
+ sky2_put_idx(sky2->hw, rxq, sky2->rx_put);
+}
+
+static int sky2_alloc_rx_skbs(struct sky2_port *sky2)
+{
+ struct sky2_hw *hw = sky2->hw;
+ unsigned i;
+
+ sky2->rx_data_size = sky2_get_rx_data_size(sky2);
+
+ /* Fill Rx ring */
+ for (i = 0; i < sky2->rx_pending; i++) {
+ struct rx_ring_info *re = sky2->rx_ring + i;
+
+ re->skb = sky2_rx_alloc(sky2, GFP_KERNEL);
+ if (!re->skb)
+ return -ENOMEM;
+
+ if (sky2_rx_map_skb(hw->pdev, re, sky2->rx_data_size)) {
+ dev_kfree_skb(re->skb);
+ re->skb = NULL;
+ return -ENOMEM;
+ }
+ }
+ return 0;
+}
+
+/*
+ * Setup receiver buffer pool.
+ * Normal case this ends up creating one list element for skb
+ * in the receive ring. Worst case if using large MTU and each
+ * allocation falls on a different 64 bit region, that results
+ * in 6 list elements per ring entry.
+ * One element is used for checksum enable/disable, and one
+ * extra to avoid wrap.
+ */
+static void sky2_rx_start(struct sky2_port *sky2)
+{
+ struct sky2_hw *hw = sky2->hw;
+ struct rx_ring_info *re;
+ unsigned rxq = rxqaddr[sky2->port];
+ unsigned i, thresh;
+
+ sky2->rx_put = sky2->rx_next = 0;
+ sky2_qset(hw, rxq);
+
+ /* On PCI express lowering the watermark gives better performance */
+ if (pci_is_pcie(hw->pdev))
+ sky2_write32(hw, Q_ADDR(rxq, Q_WM), BMU_WM_PEX);
+
+ /* These chips have no ram buffer?
+ * MAC Rx RAM Read is controlled by hardware */
+ if (hw->chip_id == CHIP_ID_YUKON_EC_U &&
+ hw->chip_rev > CHIP_REV_YU_EC_U_A0)
+ sky2_write32(hw, Q_ADDR(rxq, Q_TEST), F_M_RX_RAM_DIS);
+
+ sky2_prefetch_init(hw, rxq, sky2->rx_le_map, RX_LE_SIZE - 1);
+
+ if (!(hw->flags & SKY2_HW_NEW_LE))
+ rx_set_checksum(sky2);
+
+ if (!(hw->flags & SKY2_HW_RSS_BROKEN))
+ rx_set_rss(sky2->netdev, sky2->netdev->features);
+
+ /* submit Rx ring */
+ for (i = 0; i < sky2->rx_pending; i++) {
+ re = sky2->rx_ring + i;
+ sky2_rx_submit(sky2, re);
+ }
+
+ /*
+ * The receiver hangs if it receives frames larger than the
+ * packet buffer. As a workaround, truncate oversize frames, but
+ * the register is limited to 9 bits, so if you do frames > 2052
+ * you better get the MTU right!
+ */
+ thresh = sky2_get_rx_threshold(sky2);
+ if (thresh > 0x1ff)
+ sky2_write32(hw, SK_REG(sky2->port, RX_GMF_CTRL_T), RX_TRUNC_OFF);
+ else {
+ sky2_write16(hw, SK_REG(sky2->port, RX_GMF_TR_THR), thresh);
+ sky2_write32(hw, SK_REG(sky2->port, RX_GMF_CTRL_T), RX_TRUNC_ON);
+ }
+
+ /* Tell chip about available buffers */
+ sky2_rx_update(sky2, rxq);
+
+ if (hw->chip_id == CHIP_ID_YUKON_EX ||
+ hw->chip_id == CHIP_ID_YUKON_SUPR) {
+ /*
+ * Disable flushing of non ASF packets;
+ * must be done after initializing the BMUs;
+ * drivers without ASF support should do this too, otherwise
+ * it may happen that they cannot run on ASF devices;
+ * remember that the MAC FIFO isn't reset during initialization.
+ */
+ sky2_write32(hw, SK_REG(sky2->port, RX_GMF_CTRL_T), RX_MACSEC_FLUSH_OFF);
+ }
+
+ if (hw->chip_id >= CHIP_ID_YUKON_SUPR) {
+ /* Enable RX Home Address & Routing Header checksum fix */
+ sky2_write16(hw, SK_REG(sky2->port, RX_GMF_FL_CTRL),
+ RX_IPV6_SA_MOB_ENA | RX_IPV6_DA_MOB_ENA);
+
+ /* Enable TX Home Address & Routing Header checksum fix */
+ sky2_write32(hw, Q_ADDR(txqaddr[sky2->port], Q_TEST),
+ TBMU_TEST_HOME_ADD_FIX_EN | TBMU_TEST_ROUTING_ADD_FIX_EN);
+ }
+}
+
+static int sky2_alloc_buffers(struct sky2_port *sky2)
+{
+ struct sky2_hw *hw = sky2->hw;
+
+ /* must be power of 2 */
+ sky2->tx_le = pci_alloc_consistent(hw->pdev,
+ sky2->tx_ring_size *
+ sizeof(struct sky2_tx_le),
+ &sky2->tx_le_map);
+ if (!sky2->tx_le)
+ goto nomem;
+
+ sky2->tx_ring = kcalloc(sky2->tx_ring_size, sizeof(struct tx_ring_info),
+ GFP_KERNEL);
+ if (!sky2->tx_ring)
+ goto nomem;
+
+ sky2->rx_le = pci_zalloc_consistent(hw->pdev, RX_LE_BYTES,
+ &sky2->rx_le_map);
+ if (!sky2->rx_le)
+ goto nomem;
+
+ sky2->rx_ring = kcalloc(sky2->rx_pending, sizeof(struct rx_ring_info),
+ GFP_KERNEL);
+ if (!sky2->rx_ring)
+ goto nomem;
+
+ return sky2_alloc_rx_skbs(sky2);
+nomem:
+ return -ENOMEM;
+}
+
+static void sky2_free_buffers(struct sky2_port *sky2)
+{
+ struct sky2_hw *hw = sky2->hw;
+
+ sky2_rx_clean(sky2);
+
+ if (sky2->rx_le) {
+ pci_free_consistent(hw->pdev, RX_LE_BYTES,
+ sky2->rx_le, sky2->rx_le_map);
+ sky2->rx_le = NULL;
+ }
+ if (sky2->tx_le) {
+ pci_free_consistent(hw->pdev,
+ sky2->tx_ring_size * sizeof(struct sky2_tx_le),
+ sky2->tx_le, sky2->tx_le_map);
+ sky2->tx_le = NULL;
+ }
+ kfree(sky2->tx_ring);
+ kfree(sky2->rx_ring);
+
+ sky2->tx_ring = NULL;
+ sky2->rx_ring = NULL;
+}
+
+static void sky2_hw_up(struct sky2_port *sky2)
+{
+ struct sky2_hw *hw = sky2->hw;
+ unsigned port = sky2->port;
+ u32 ramsize;
+ int cap;
+ struct net_device *otherdev = hw->dev[sky2->port^1];
+
+ tx_init(sky2);
+
+ /*
+ * On dual port PCI-X card, there is an problem where status
+ * can be received out of order due to split transactions
+ */
+ if (otherdev && netif_running(otherdev) &&
+ (cap = pci_find_capability(hw->pdev, PCI_CAP_ID_PCIX))) {
+ u16 cmd;
+
+ cmd = sky2_pci_read16(hw, cap + PCI_X_CMD);
+ cmd &= ~PCI_X_CMD_MAX_SPLIT;
+ sky2_pci_write16(hw, cap + PCI_X_CMD, cmd);
+ }
+
+ sky2_mac_init(hw, port);
+
+ /* Register is number of 4K blocks on internal RAM buffer. */
+ ramsize = sky2_read8(hw, B2_E_0) * 4;
+ if (ramsize > 0) {
+ u32 rxspace;
+
+ netdev_dbg(sky2->netdev, "ram buffer %dK\n", ramsize);
+ if (ramsize < 16)
+ rxspace = ramsize / 2;
+ else
+ rxspace = 8 + (2*(ramsize - 16))/3;
+
+ sky2_ramset(hw, rxqaddr[port], 0, rxspace);
+ sky2_ramset(hw, txqaddr[port], rxspace, ramsize - rxspace);
+
+ /* Make sure SyncQ is disabled */
+ sky2_write8(hw, RB_ADDR(port == 0 ? Q_XS1 : Q_XS2, RB_CTRL),
+ RB_RST_SET);
+ }
+
+ sky2_qset(hw, txqaddr[port]);
+
+ /* This is copied from sk98lin 10.0.5.3; no one tells me about erratta's */
+ if (hw->chip_id == CHIP_ID_YUKON_EX && hw->chip_rev == CHIP_REV_YU_EX_B0)
+ sky2_write32(hw, Q_ADDR(txqaddr[port], Q_TEST), F_TX_CHK_AUTO_OFF);
+
+ /* Set almost empty threshold */
+ if (hw->chip_id == CHIP_ID_YUKON_EC_U &&
+ hw->chip_rev == CHIP_REV_YU_EC_U_A0)
+ sky2_write16(hw, Q_ADDR(txqaddr[port], Q_AL), ECU_TXFF_LEV);
+
+ sky2_prefetch_init(hw, txqaddr[port], sky2->tx_le_map,
+ sky2->tx_ring_size - 1);
+
+ sky2_vlan_mode(sky2->netdev, sky2->netdev->features);
+ netdev_update_features(sky2->netdev);
+
+ sky2_rx_start(sky2);
+}
+
+/* Setup device IRQ and enable napi to process */
+static int sky2_setup_irq(struct sky2_hw *hw, const char *name)
+{
+ struct pci_dev *pdev = hw->pdev;
+ int err;
+
+ err = request_irq(pdev->irq, sky2_intr,
+ (hw->flags & SKY2_HW_USE_MSI) ? 0 : IRQF_SHARED,
+ name, hw);
+ if (err)
+ dev_err(&pdev->dev, "cannot assign irq %d\n", pdev->irq);
+ else {
+ hw->flags |= SKY2_HW_IRQ_SETUP;
+
+ napi_enable(&hw->napi);
+ sky2_write32(hw, B0_IMSK, Y2_IS_BASE);
+ sky2_read32(hw, B0_IMSK);
+ }
+
+ return err;
+}
+
+
+/* Bring up network interface. */
+static int sky2_open(struct net_device *dev)
+{
+ struct sky2_port *sky2 = netdev_priv(dev);
+ struct sky2_hw *hw = sky2->hw;
+ unsigned port = sky2->port;
+ u32 imask;
+ int err;
+
+ netif_carrier_off(dev);
+
+ err = sky2_alloc_buffers(sky2);
+ if (err)
+ goto err_out;
+
+ /* With single port, IRQ is setup when device is brought up */
+ if (hw->ports == 1 && (err = sky2_setup_irq(hw, dev->name)))
+ goto err_out;
+
+ sky2_hw_up(sky2);
+
+ /* Enable interrupts from phy/mac for port */
+ imask = sky2_read32(hw, B0_IMSK);
+
+ if (hw->chip_id == CHIP_ID_YUKON_OPT ||
+ hw->chip_id == CHIP_ID_YUKON_PRM ||
+ hw->chip_id == CHIP_ID_YUKON_OP_2)
+ imask |= Y2_IS_PHY_QLNK; /* enable PHY Quick Link */
+
+ imask |= portirq_msk[port];
+ sky2_write32(hw, B0_IMSK, imask);
+ sky2_read32(hw, B0_IMSK);
+
+ netif_info(sky2, ifup, dev, "enabling interface\n");
+
+ return 0;
+
+err_out:
+ sky2_free_buffers(sky2);
+ return err;
+}
+
+/* Modular subtraction in ring */
+static inline int tx_inuse(const struct sky2_port *sky2)
+{
+ return (sky2->tx_prod - sky2->tx_cons) & (sky2->tx_ring_size - 1);
+}
+
+/* Number of list elements available for next tx */
+static inline int tx_avail(const struct sky2_port *sky2)
+{
+ return sky2->tx_pending - tx_inuse(sky2);
+}
+
+/* Estimate of number of transmit list elements required */
+static unsigned tx_le_req(const struct sk_buff *skb)
+{
+ unsigned count;
+
+ count = (skb_shinfo(skb)->nr_frags + 1)
+ * (sizeof(dma_addr_t) / sizeof(u32));
+
+ if (skb_is_gso(skb))
+ ++count;
+ else if (sizeof(dma_addr_t) == sizeof(u32))
+ ++count; /* possible vlan */
+
+ if (skb->ip_summed == CHECKSUM_PARTIAL)
+ ++count;
+
+ return count;
+}
+
+static void sky2_tx_unmap(struct pci_dev *pdev, struct tx_ring_info *re)
+{
+ if (re->flags & TX_MAP_SINGLE)
+ pci_unmap_single(pdev, dma_unmap_addr(re, mapaddr),
+ dma_unmap_len(re, maplen),
+ PCI_DMA_TODEVICE);
+ else if (re->flags & TX_MAP_PAGE)
+ pci_unmap_page(pdev, dma_unmap_addr(re, mapaddr),
+ dma_unmap_len(re, maplen),
+ PCI_DMA_TODEVICE);
+ re->flags = 0;
+}
+
+/*
+ * Put one packet in ring for transmit.
+ * A single packet can generate multiple list elements, and
+ * the number of ring elements will probably be less than the number
+ * of list elements used.
+ */
+static netdev_tx_t sky2_xmit_frame(struct sk_buff *skb,
+ struct net_device *dev)
+{
+ struct sky2_port *sky2 = netdev_priv(dev);
+ struct sky2_hw *hw = sky2->hw;
+ struct sky2_tx_le *le = NULL;
+ struct tx_ring_info *re;
+ unsigned i, len;
+ dma_addr_t mapping;
+ u32 upper;
+ u16 slot;
+ u16 mss;
+ u8 ctrl;
+
+ if (unlikely(tx_avail(sky2) < tx_le_req(skb)))
+ return NETDEV_TX_BUSY;
+
+ len = skb_headlen(skb);
+ mapping = pci_map_single(hw->pdev, skb->data, len, PCI_DMA_TODEVICE);
+
+ if (pci_dma_mapping_error(hw->pdev, mapping))
+ goto mapping_error;
+
+ slot = sky2->tx_prod;
+ netif_printk(sky2, tx_queued, KERN_DEBUG, dev,
+ "tx queued, slot %u, len %d\n", slot, skb->len);
+
+ /* Send high bits if needed */
+ upper = upper_32_bits(mapping);
+ if (upper != sky2->tx_last_upper) {
+ le = get_tx_le(sky2, &slot);
+ le->addr = cpu_to_le32(upper);
+ sky2->tx_last_upper = upper;
+ le->opcode = OP_ADDR64 | HW_OWNER;
+ }
+
+ /* Check for TCP Segmentation Offload */
+ mss = skb_shinfo(skb)->gso_size;
+ if (mss != 0) {
+
+ if (!(hw->flags & SKY2_HW_NEW_LE))
+ mss += ETH_HLEN + ip_hdrlen(skb) + tcp_hdrlen(skb);
+
+ if (mss != sky2->tx_last_mss) {
+ le = get_tx_le(sky2, &slot);
+ le->addr = cpu_to_le32(mss);
+
+ if (hw->flags & SKY2_HW_NEW_LE)
+ le->opcode = OP_MSS | HW_OWNER;
+ else
+ le->opcode = OP_LRGLEN | HW_OWNER;
+ sky2->tx_last_mss = mss;
+ }
+ }
+
+ ctrl = 0;
+
+ /* Add VLAN tag, can piggyback on LRGLEN or ADDR64 */
+ if (skb_vlan_tag_present(skb)) {
+ if (!le) {
+ le = get_tx_le(sky2, &slot);
+ le->addr = 0;
+ le->opcode = OP_VLAN|HW_OWNER;
+ } else
+ le->opcode |= OP_VLAN;
+ le->length = cpu_to_be16(skb_vlan_tag_get(skb));
+ ctrl |= INS_VLAN;
+ }
+
+ /* Handle TCP checksum offload */
+ if (skb->ip_summed == CHECKSUM_PARTIAL) {
+ /* On Yukon EX (some versions) encoding change. */
+ if (hw->flags & SKY2_HW_AUTO_TX_SUM)
+ ctrl |= CALSUM; /* auto checksum */
+ else {
+ const unsigned offset = skb_transport_offset(skb);
+ u32 tcpsum;
+
+ tcpsum = offset << 16; /* sum start */
+ tcpsum |= offset + skb->csum_offset; /* sum write */
+
+ ctrl |= CALSUM | WR_SUM | INIT_SUM | LOCK_SUM;
+ if (ip_hdr(skb)->protocol == IPPROTO_UDP)
+ ctrl |= UDPTCP;
+
+ if (tcpsum != sky2->tx_tcpsum) {
+ sky2->tx_tcpsum = tcpsum;
+
+ le = get_tx_le(sky2, &slot);
+ le->addr = cpu_to_le32(tcpsum);
+ le->length = 0; /* initial checksum value */
+ le->ctrl = 1; /* one packet */
+ le->opcode = OP_TCPLISW | HW_OWNER;
+ }
+ }
+ }
+
+ re = sky2->tx_ring + slot;
+ re->flags = TX_MAP_SINGLE;
+ dma_unmap_addr_set(re, mapaddr, mapping);
+ dma_unmap_len_set(re, maplen, len);
+
+ le = get_tx_le(sky2, &slot);
+ le->addr = cpu_to_le32(lower_32_bits(mapping));
+ le->length = cpu_to_le16(len);
+ le->ctrl = ctrl;
+ le->opcode = mss ? (OP_LARGESEND | HW_OWNER) : (OP_PACKET | HW_OWNER);
+
+
+ for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
+ const skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
+
+ mapping = skb_frag_dma_map(&hw->pdev->dev, frag, 0,
+ skb_frag_size(frag), DMA_TO_DEVICE);
+
+ if (dma_mapping_error(&hw->pdev->dev, mapping))
+ goto mapping_unwind;
+
+ upper = upper_32_bits(mapping);
+ if (upper != sky2->tx_last_upper) {
+ le = get_tx_le(sky2, &slot);
+ le->addr = cpu_to_le32(upper);
+ sky2->tx_last_upper = upper;
+ le->opcode = OP_ADDR64 | HW_OWNER;
+ }
+
+ re = sky2->tx_ring + slot;
+ re->flags = TX_MAP_PAGE;
+ dma_unmap_addr_set(re, mapaddr, mapping);
+ dma_unmap_len_set(re, maplen, skb_frag_size(frag));
+
+ le = get_tx_le(sky2, &slot);
+ le->addr = cpu_to_le32(lower_32_bits(mapping));
+ le->length = cpu_to_le16(skb_frag_size(frag));
+ le->ctrl = ctrl;
+ le->opcode = OP_BUFFER | HW_OWNER;
+ }
+
+ re->skb = skb;
+ le->ctrl |= EOP;
+
+ sky2->tx_prod = slot;
+
+ if (tx_avail(sky2) <= MAX_SKB_TX_LE)
+ netif_stop_queue(dev);
+
+ netdev_sent_queue(dev, skb->len);
+ sky2_put_idx(hw, txqaddr[sky2->port], sky2->tx_prod);
+
+ return NETDEV_TX_OK;
+
+mapping_unwind:
+ for (i = sky2->tx_prod; i != slot; i = RING_NEXT(i, sky2->tx_ring_size)) {
+ re = sky2->tx_ring + i;
+
+ sky2_tx_unmap(hw->pdev, re);
+ }
+
+mapping_error:
+ if (net_ratelimit())
+ dev_warn(&hw->pdev->dev, "%s: tx mapping error\n", dev->name);
+ dev_kfree_skb_any(skb);
+ return NETDEV_TX_OK;
+}
+
+/*
+ * Free ring elements from starting at tx_cons until "done"
+ *
+ * NB:
+ * 1. The hardware will tell us about partial completion of multi-part
+ * buffers so make sure not to free skb to early.
+ * 2. This may run in parallel start_xmit because the it only
+ * looks at the tail of the queue of FIFO (tx_cons), not
+ * the head (tx_prod)
+ */
+static void sky2_tx_complete(struct sky2_port *sky2, u16 done)
+{
+ struct net_device *dev = sky2->netdev;
+ u16 idx;
+ unsigned int bytes_compl = 0, pkts_compl = 0;
+
+ BUG_ON(done >= sky2->tx_ring_size);
+
+ for (idx = sky2->tx_cons; idx != done;
+ idx = RING_NEXT(idx, sky2->tx_ring_size)) {
+ struct tx_ring_info *re = sky2->tx_ring + idx;
+ struct sk_buff *skb = re->skb;
+
+ sky2_tx_unmap(sky2->hw->pdev, re);
+
+ if (skb) {
+ netif_printk(sky2, tx_done, KERN_DEBUG, dev,
+ "tx done %u\n", idx);
+
+ pkts_compl++;
+ bytes_compl += skb->len;
+
+ re->skb = NULL;
+ dev_kfree_skb_any(skb);
+
+ sky2->tx_next = RING_NEXT(idx, sky2->tx_ring_size);
+ }
+ }
+
+ sky2->tx_cons = idx;
+ smp_mb();
+
+ netdev_completed_queue(dev, pkts_compl, bytes_compl);
+
+ u64_stats_update_begin(&sky2->tx_stats.syncp);
+ sky2->tx_stats.packets += pkts_compl;
+ sky2->tx_stats.bytes += bytes_compl;
+ u64_stats_update_end(&sky2->tx_stats.syncp);
+}
+
+static void sky2_tx_reset(struct sky2_hw *hw, unsigned port)
+{
+ /* Disable Force Sync bit and Enable Alloc bit */
+ sky2_write8(hw, SK_REG(port, TXA_CTRL),
+ TXA_DIS_FSYNC | TXA_DIS_ALLOC | TXA_STOP_RC);
+
+ /* Stop Interval Timer and Limit Counter of Tx Arbiter */
+ sky2_write32(hw, SK_REG(port, TXA_ITI_INI), 0L);
+ sky2_write32(hw, SK_REG(port, TXA_LIM_INI), 0L);
+
+ /* Reset the PCI FIFO of the async Tx queue */
+ sky2_write32(hw, Q_ADDR(txqaddr[port], Q_CSR),
+ BMU_RST_SET | BMU_FIFO_RST);
+
+ /* Reset the Tx prefetch units */
+ sky2_write32(hw, Y2_QADDR(txqaddr[port], PREF_UNIT_CTRL),
+ PREF_UNIT_RST_SET);
+
+ sky2_write32(hw, RB_ADDR(txqaddr[port], RB_CTRL), RB_RST_SET);
+ sky2_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_RST_SET);
+
+ sky2_read32(hw, B0_CTST);
+}
+
+static void sky2_hw_down(struct sky2_port *sky2)
+{
+ struct sky2_hw *hw = sky2->hw;
+ unsigned port = sky2->port;
+ u16 ctrl;
+
+ /* Force flow control off */
+ sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_OFF);
+
+ /* Stop transmitter */
+ sky2_write32(hw, Q_ADDR(txqaddr[port], Q_CSR), BMU_STOP);
+ sky2_read32(hw, Q_ADDR(txqaddr[port], Q_CSR));
+
+ sky2_write32(hw, RB_ADDR(txqaddr[port], RB_CTRL),
+ RB_RST_SET | RB_DIS_OP_MD);
+
+ ctrl = gma_read16(hw, port, GM_GP_CTRL);
+ ctrl &= ~(GM_GPCR_TX_ENA | GM_GPCR_RX_ENA);
+ gma_write16(hw, port, GM_GP_CTRL, ctrl);
+
+ sky2_write8(hw, SK_REG(port, GPHY_CTRL), GPC_RST_SET);
+
+ /* Workaround shared GMAC reset */
+ if (!(hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev == 0 &&
+ port == 0 && hw->dev[1] && netif_running(hw->dev[1])))
+ sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_RST_SET);
+
+ sky2_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_SET);
+
+ /* Force any delayed status interrupt and NAPI */
+ sky2_write32(hw, STAT_LEV_TIMER_CNT, 0);
+ sky2_write32(hw, STAT_TX_TIMER_CNT, 0);
+ sky2_write32(hw, STAT_ISR_TIMER_CNT, 0);
+ sky2_read8(hw, STAT_ISR_TIMER_CTRL);
+
+ sky2_rx_stop(sky2);
+
+ spin_lock_bh(&sky2->phy_lock);
+ sky2_phy_power_down(hw, port);
+ spin_unlock_bh(&sky2->phy_lock);
+
+ sky2_tx_reset(hw, port);
+
+ /* Free any pending frames stuck in HW queue */
+ sky2_tx_complete(sky2, sky2->tx_prod);
+}
+
+/* Network shutdown */
+static int sky2_close(struct net_device *dev)
+{
+ struct sky2_port *sky2 = netdev_priv(dev);
+ struct sky2_hw *hw = sky2->hw;
+
+ /* Never really got started! */
+ if (!sky2->tx_le)
+ return 0;
+
+ netif_info(sky2, ifdown, dev, "disabling interface\n");
+
+ if (hw->ports == 1) {
+ sky2_write32(hw, B0_IMSK, 0);
+ sky2_read32(hw, B0_IMSK);
+
+ napi_disable(&hw->napi);
+ free_irq(hw->pdev->irq, hw);
+ hw->flags &= ~SKY2_HW_IRQ_SETUP;
+ } else {
+ u32 imask;
+
+ /* Disable port IRQ */
+ imask = sky2_read32(hw, B0_IMSK);
+ imask &= ~portirq_msk[sky2->port];
+ sky2_write32(hw, B0_IMSK, imask);
+ sky2_read32(hw, B0_IMSK);
+
+ synchronize_irq(hw->pdev->irq);
+ napi_synchronize(&hw->napi);
+ }
+
+ sky2_hw_down(sky2);
+
+ sky2_free_buffers(sky2);
+
+ return 0;
+}
+
+static u16 sky2_phy_speed(const struct sky2_hw *hw, u16 aux)
+{
+ if (hw->flags & SKY2_HW_FIBRE_PHY)
+ return SPEED_1000;
+
+ if (!(hw->flags & SKY2_HW_GIGABIT)) {
+ if (aux & PHY_M_PS_SPEED_100)
+ return SPEED_100;
+ else
+ return SPEED_10;
+ }
+
+ switch (aux & PHY_M_PS_SPEED_MSK) {
+ case PHY_M_PS_SPEED_1000:
+ return SPEED_1000;
+ case PHY_M_PS_SPEED_100:
+ return SPEED_100;
+ default:
+ return SPEED_10;
+ }
+}
+
+static void sky2_link_up(struct sky2_port *sky2)
+{
+ struct sky2_hw *hw = sky2->hw;
+ unsigned port = sky2->port;
+ static const char *fc_name[] = {
+ [FC_NONE] = "none",
+ [FC_TX] = "tx",
+ [FC_RX] = "rx",
+ [FC_BOTH] = "both",
+ };
+
+ sky2_set_ipg(sky2);
+
+ sky2_enable_rx_tx(sky2);
+
+ gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_DEF_MSK);
+
+ netif_carrier_on(sky2->netdev);
+
+ mod_timer(&hw->watchdog_timer, jiffies + 1);
+
+ /* Turn on link LED */
+ sky2_write8(hw, SK_REG(port, LNK_LED_REG),
+ LINKLED_ON | LINKLED_BLINK_OFF | LINKLED_LINKSYNC_OFF);
+
+ netif_info(sky2, link, sky2->netdev,
+ "Link is up at %d Mbps, %s duplex, flow control %s\n",
+ sky2->speed,
+ sky2->duplex == DUPLEX_FULL ? "full" : "half",
+ fc_name[sky2->flow_status]);
+}
+
+static void sky2_link_down(struct sky2_port *sky2)
+{
+ struct sky2_hw *hw = sky2->hw;
+ unsigned port = sky2->port;
+ u16 reg;
+
+ gm_phy_write(hw, port, PHY_MARV_INT_MASK, 0);
+
+ reg = gma_read16(hw, port, GM_GP_CTRL);
+ reg &= ~(GM_GPCR_RX_ENA | GM_GPCR_TX_ENA);
+ gma_write16(hw, port, GM_GP_CTRL, reg);
+
+ netif_carrier_off(sky2->netdev);
+
+ /* Turn off link LED */
+ sky2_write8(hw, SK_REG(port, LNK_LED_REG), LINKLED_OFF);
+
+ netif_info(sky2, link, sky2->netdev, "Link is down\n");
+
+ sky2_phy_init(hw, port);
+}
+
+static enum flow_control sky2_flow(int rx, int tx)
+{
+ if (rx)
+ return tx ? FC_BOTH : FC_RX;
+ else
+ return tx ? FC_TX : FC_NONE;
+}
+
+static int sky2_autoneg_done(struct sky2_port *sky2, u16 aux)
+{
+ struct sky2_hw *hw = sky2->hw;
+ unsigned port = sky2->port;
+ u16 advert, lpa;
+
+ advert = gm_phy_read(hw, port, PHY_MARV_AUNE_ADV);
+ lpa = gm_phy_read(hw, port, PHY_MARV_AUNE_LP);
+ if (lpa & PHY_M_AN_RF) {
+ netdev_err(sky2->netdev, "remote fault\n");
+ return -1;
+ }
+
+ if (!(aux & PHY_M_PS_SPDUP_RES)) {
+ netdev_err(sky2->netdev, "speed/duplex mismatch\n");
+ return -1;
+ }
+
+ sky2->speed = sky2_phy_speed(hw, aux);
+ sky2->duplex = (aux & PHY_M_PS_FULL_DUP) ? DUPLEX_FULL : DUPLEX_HALF;
+
+ /* Since the pause result bits seem to in different positions on
+ * different chips. look at registers.
+ */
+ if (hw->flags & SKY2_HW_FIBRE_PHY) {
+ /* Shift for bits in fiber PHY */
+ advert &= ~(ADVERTISE_PAUSE_CAP|ADVERTISE_PAUSE_ASYM);
+ lpa &= ~(LPA_PAUSE_CAP|LPA_PAUSE_ASYM);
+
+ if (advert & ADVERTISE_1000XPAUSE)
+ advert |= ADVERTISE_PAUSE_CAP;
+ if (advert & ADVERTISE_1000XPSE_ASYM)
+ advert |= ADVERTISE_PAUSE_ASYM;
+ if (lpa & LPA_1000XPAUSE)
+ lpa |= LPA_PAUSE_CAP;
+ if (lpa & LPA_1000XPAUSE_ASYM)
+ lpa |= LPA_PAUSE_ASYM;
+ }
+
+ sky2->flow_status = FC_NONE;
+ if (advert & ADVERTISE_PAUSE_CAP) {
+ if (lpa & LPA_PAUSE_CAP)
+ sky2->flow_status = FC_BOTH;
+ else if (advert & ADVERTISE_PAUSE_ASYM)
+ sky2->flow_status = FC_RX;
+ } else if (advert & ADVERTISE_PAUSE_ASYM) {
+ if ((lpa & LPA_PAUSE_CAP) && (lpa & LPA_PAUSE_ASYM))
+ sky2->flow_status = FC_TX;
+ }
+
+ if (sky2->duplex == DUPLEX_HALF && sky2->speed < SPEED_1000 &&
+ !(hw->chip_id == CHIP_ID_YUKON_EC_U || hw->chip_id == CHIP_ID_YUKON_EX))
+ sky2->flow_status = FC_NONE;
+
+ if (sky2->flow_status & FC_TX)
+ sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_ON);
+ else
+ sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_OFF);
+
+ return 0;
+}
+
+/* Interrupt from PHY */
+static void sky2_phy_intr(struct sky2_hw *hw, unsigned port)
+{
+ struct net_device *dev = hw->dev[port];
+ struct sky2_port *sky2 = netdev_priv(dev);
+ u16 istatus, phystat;
+
+ if (!netif_running(dev))
+ return;
+
+ spin_lock(&sky2->phy_lock);
+ istatus = gm_phy_read(hw, port, PHY_MARV_INT_STAT);
+ phystat = gm_phy_read(hw, port, PHY_MARV_PHY_STAT);
+
+ netif_info(sky2, intr, sky2->netdev, "phy interrupt status 0x%x 0x%x\n",
+ istatus, phystat);
+
+ if (istatus & PHY_M_IS_AN_COMPL) {
+ if (sky2_autoneg_done(sky2, phystat) == 0 &&
+ !netif_carrier_ok(dev))
+ sky2_link_up(sky2);
+ goto out;
+ }
+
+ if (istatus & PHY_M_IS_LSP_CHANGE)
+ sky2->speed = sky2_phy_speed(hw, phystat);
+
+ if (istatus & PHY_M_IS_DUP_CHANGE)
+ sky2->duplex =
+ (phystat & PHY_M_PS_FULL_DUP) ? DUPLEX_FULL : DUPLEX_HALF;
+
+ if (istatus & PHY_M_IS_LST_CHANGE) {
+ if (phystat & PHY_M_PS_LINK_UP)
+ sky2_link_up(sky2);
+ else
+ sky2_link_down(sky2);
+ }
+out:
+ spin_unlock(&sky2->phy_lock);
+}
+
+/* Special quick link interrupt (Yukon-2 Optima only) */
+static void sky2_qlink_intr(struct sky2_hw *hw)
+{
+ struct sky2_port *sky2 = netdev_priv(hw->dev[0]);
+ u32 imask;
+ u16 phy;
+
+ /* disable irq */
+ imask = sky2_read32(hw, B0_IMSK);
+ imask &= ~Y2_IS_PHY_QLNK;
+ sky2_write32(hw, B0_IMSK, imask);
+
+ /* reset PHY Link Detect */
+ phy = sky2_pci_read16(hw, PSM_CONFIG_REG4);
+ sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON);
+ sky2_pci_write16(hw, PSM_CONFIG_REG4, phy | 1);
+ sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF);
+
+ sky2_link_up(sky2);
+}
+
+/* Transmit timeout is only called if we are running, carrier is up
+ * and tx queue is full (stopped).
+ */
+static void sky2_tx_timeout(struct net_device *dev)
+{
+ struct sky2_port *sky2 = netdev_priv(dev);
+ struct sky2_hw *hw = sky2->hw;
+
+ netif_err(sky2, timer, dev, "tx timeout\n");
+
+ netdev_printk(KERN_DEBUG, dev, "transmit ring %u .. %u report=%u done=%u\n",
+ sky2->tx_cons, sky2->tx_prod,
+ sky2_read16(hw, sky2->port == 0 ? STAT_TXA1_RIDX : STAT_TXA2_RIDX),
+ sky2_read16(hw, Q_ADDR(txqaddr[sky2->port], Q_DONE)));
+
+ /* can't restart safely under softirq */
+ schedule_work(&hw->restart_work);
+}
+
+static int sky2_change_mtu(struct net_device *dev, int new_mtu)
+{
+ struct sky2_port *sky2 = netdev_priv(dev);
+ struct sky2_hw *hw = sky2->hw;
+ unsigned port = sky2->port;
+ int err;
+ u16 ctl, mode;
+ u32 imask;
+
+ /* MTU size outside the spec */
+ if (new_mtu < ETH_ZLEN || new_mtu > ETH_JUMBO_MTU)
+ return -EINVAL;
+
+ /* MTU > 1500 on yukon FE and FE+ not allowed */
+ if (new_mtu > ETH_DATA_LEN &&
+ (hw->chip_id == CHIP_ID_YUKON_FE ||
+ hw->chip_id == CHIP_ID_YUKON_FE_P))
+ return -EINVAL;
+
+ if (!netif_running(dev)) {
+ dev->mtu = new_mtu;
+ netdev_update_features(dev);
+ return 0;
+ }
+
+ imask = sky2_read32(hw, B0_IMSK);
+ sky2_write32(hw, B0_IMSK, 0);
+ sky2_read32(hw, B0_IMSK);
+
+ dev->trans_start = jiffies; /* prevent tx timeout */
+ napi_disable(&hw->napi);
+ netif_tx_disable(dev);
+
+ synchronize_irq(hw->pdev->irq);
+
+ if (!(hw->flags & SKY2_HW_RAM_BUFFER))
+ sky2_set_tx_stfwd(hw, port);
+
+ ctl = gma_read16(hw, port, GM_GP_CTRL);
+ gma_write16(hw, port, GM_GP_CTRL, ctl & ~GM_GPCR_RX_ENA);
+ sky2_rx_stop(sky2);
+ sky2_rx_clean(sky2);
+
+ dev->mtu = new_mtu;
+ netdev_update_features(dev);
+
+ mode = DATA_BLIND_VAL(DATA_BLIND_DEF) | GM_SMOD_VLAN_ENA;
+ if (sky2->speed > SPEED_100)
+ mode |= IPG_DATA_VAL(IPG_DATA_DEF_1000);
+ else
+ mode |= IPG_DATA_VAL(IPG_DATA_DEF_10_100);
+
+ if (dev->mtu > ETH_DATA_LEN)
+ mode |= GM_SMOD_JUMBO_ENA;
+
+ gma_write16(hw, port, GM_SERIAL_MODE, mode);
+
+ sky2_write8(hw, RB_ADDR(rxqaddr[port], RB_CTRL), RB_ENA_OP_MD);
+
+ err = sky2_alloc_rx_skbs(sky2);
+ if (!err)
+ sky2_rx_start(sky2);
+ else
+ sky2_rx_clean(sky2);
+ sky2_write32(hw, B0_IMSK, imask);
+
+ sky2_read32(hw, B0_Y2_SP_LISR);
+ napi_enable(&hw->napi);
+
+ if (err)
+ dev_close(dev);
+ else {
+ gma_write16(hw, port, GM_GP_CTRL, ctl);
+
+ netif_wake_queue(dev);
+ }
+
+ return err;
+}
+
+static inline bool needs_copy(const struct rx_ring_info *re,
+ unsigned length)
+{
+#ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
+ /* Some architectures need the IP header to be aligned */
+ if (!IS_ALIGNED(re->data_addr + ETH_HLEN, sizeof(u32)))
+ return true;
+#endif
+ return length < copybreak;
+}
+
+/* For small just reuse existing skb for next receive */
+static struct sk_buff *receive_copy(struct sky2_port *sky2,
+ const struct rx_ring_info *re,
+ unsigned length)
+{
+ struct sk_buff *skb;
+
+ skb = netdev_alloc_skb_ip_align(sky2->netdev, length);
+ if (likely(skb)) {
+ pci_dma_sync_single_for_cpu(sky2->hw->pdev, re->data_addr,
+ length, PCI_DMA_FROMDEVICE);
+ skb_copy_from_linear_data(re->skb, skb->data, length);
+ skb->ip_summed = re->skb->ip_summed;
+ skb->csum = re->skb->csum;
+ skb_copy_hash(skb, re->skb);
+ skb->vlan_proto = re->skb->vlan_proto;
+ skb->vlan_tci = re->skb->vlan_tci;
+
+ pci_dma_sync_single_for_device(sky2->hw->pdev, re->data_addr,
+ length, PCI_DMA_FROMDEVICE);
+ re->skb->vlan_proto = 0;
+ re->skb->vlan_tci = 0;
+ skb_clear_hash(re->skb);
+ re->skb->ip_summed = CHECKSUM_NONE;
+ skb_put(skb, length);
+ }
+ return skb;
+}
+
+/* Adjust length of skb with fragments to match received data */
+static void skb_put_frags(struct sk_buff *skb, unsigned int hdr_space,
+ unsigned int length)
+{
+ int i, num_frags;
+ unsigned int size;
+
+ /* put header into skb */
+ size = min(length, hdr_space);
+ skb->tail += size;
+ skb->len += size;
+ length -= size;
+
+ num_frags = skb_shinfo(skb)->nr_frags;
+ for (i = 0; i < num_frags; i++) {
+ skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
+
+ if (length == 0) {
+ /* don't need this page */
+ __skb_frag_unref(frag);
+ --skb_shinfo(skb)->nr_frags;
+ } else {
+ size = min(length, (unsigned) PAGE_SIZE);
+
+ skb_frag_size_set(frag, size);
+ skb->data_len += size;
+ skb->truesize += PAGE_SIZE;
+ skb->len += size;
+ length -= size;
+ }
+ }
+}
+
+/* Normal packet - take skb from ring element and put in a new one */
+static struct sk_buff *receive_new(struct sky2_port *sky2,
+ struct rx_ring_info *re,
+ unsigned int length)
+{
+ struct sk_buff *skb;
+ struct rx_ring_info nre;
+ unsigned hdr_space = sky2->rx_data_size;
+
+ nre.skb = sky2_rx_alloc(sky2, GFP_ATOMIC);
+ if (unlikely(!nre.skb))
+ goto nobuf;
+
+ if (sky2_rx_map_skb(sky2->hw->pdev, &nre, hdr_space))
+ goto nomap;
+
+ skb = re->skb;
+ sky2_rx_unmap_skb(sky2->hw->pdev, re);
+ prefetch(skb->data);
+ *re = nre;
+
+ if (skb_shinfo(skb)->nr_frags)
+ skb_put_frags(skb, hdr_space, length);
+ else
+ skb_put(skb, length);
+ return skb;
+
+nomap:
+ dev_kfree_skb(nre.skb);
+nobuf:
+ return NULL;
+}
+
+/*
+ * Receive one packet.
+ * For larger packets, get new buffer.
+ */
+static struct sk_buff *sky2_receive(struct net_device *dev,
+ u16 length, u32 status)
+{
+ struct sky2_port *sky2 = netdev_priv(dev);
+ struct rx_ring_info *re = sky2->rx_ring + sky2->rx_next;
+ struct sk_buff *skb = NULL;
+ u16 count = (status & GMR_FS_LEN) >> 16;
+
+ netif_printk(sky2, rx_status, KERN_DEBUG, dev,
+ "rx slot %u status 0x%x len %d\n",
+ sky2->rx_next, status, length);
+
+ sky2->rx_next = (sky2->rx_next + 1) % sky2->rx_pending;
+ prefetch(sky2->rx_ring + sky2->rx_next);
+
+ if (skb_vlan_tag_present(re->skb))
+ count -= VLAN_HLEN; /* Account for vlan tag */
+
+ /* This chip has hardware problems that generates bogus status.
+ * So do only marginal checking and expect higher level protocols
+ * to handle crap frames.
+ */
+ if (sky2->hw->chip_id == CHIP_ID_YUKON_FE_P &&
+ sky2->hw->chip_rev == CHIP_REV_YU_FE2_A0 &&
+ length != count)
+ goto okay;
+
+ if (status & GMR_FS_ANY_ERR)
+ goto error;
+
+ if (!(status & GMR_FS_RX_OK))
+ goto resubmit;
+
+ /* if length reported by DMA does not match PHY, packet was truncated */
+ if (length != count)
+ goto error;
+
+okay:
+ if (needs_copy(re, length))
+ skb = receive_copy(sky2, re, length);
+ else
+ skb = receive_new(sky2, re, length);
+
+ dev->stats.rx_dropped += (skb == NULL);
+
+resubmit:
+ sky2_rx_submit(sky2, re);
+
+ return skb;
+
+error:
+ ++dev->stats.rx_errors;
+
+ if (net_ratelimit())
+ netif_info(sky2, rx_err, dev,
+ "rx error, status 0x%x length %d\n", status, length);
+
+ goto resubmit;
+}
+
+/* Transmit complete */
+static inline void sky2_tx_done(struct net_device *dev, u16 last)
+{
+ struct sky2_port *sky2 = netdev_priv(dev);
+
+ if (netif_running(dev)) {
+ sky2_tx_complete(sky2, last);
+
+ /* Wake unless it's detached, and called e.g. from sky2_close() */
+ if (tx_avail(sky2) > MAX_SKB_TX_LE + 4)
+ netif_wake_queue(dev);
+ }
+}
+
+static inline void sky2_skb_rx(const struct sky2_port *sky2,
+ struct sk_buff *skb)
+{
+ if (skb->ip_summed == CHECKSUM_NONE)
+ netif_receive_skb(skb);
+ else
+ napi_gro_receive(&sky2->hw->napi, skb);
+}
+
+static inline void sky2_rx_done(struct sky2_hw *hw, unsigned port,
+ unsigned packets, unsigned bytes)
+{
+ struct net_device *dev = hw->dev[port];
+ struct sky2_port *sky2 = netdev_priv(dev);
+
+ if (packets == 0)
+ return;
+
+ u64_stats_update_begin(&sky2->rx_stats.syncp);
+ sky2->rx_stats.packets += packets;
+ sky2->rx_stats.bytes += bytes;
+ u64_stats_update_end(&sky2->rx_stats.syncp);
+
+ dev->last_rx = jiffies;
+ sky2_rx_update(netdev_priv(dev), rxqaddr[port]);
+}
+
+static void sky2_rx_checksum(struct sky2_port *sky2, u32 status)
+{
+ /* If this happens then driver assuming wrong format for chip type */
+ BUG_ON(sky2->hw->flags & SKY2_HW_NEW_LE);
+
+ /* Both checksum counters are programmed to start at
+ * the same offset, so unless there is a problem they
+ * should match. This failure is an early indication that
+ * hardware receive checksumming won't work.
+ */
+ if (likely((u16)(status >> 16) == (u16)status)) {
+ struct sk_buff *skb = sky2->rx_ring[sky2->rx_next].skb;
+ skb->ip_summed = CHECKSUM_COMPLETE;
+ skb->csum = le16_to_cpu(status);
+ } else {
+ dev_notice(&sky2->hw->pdev->dev,
+ "%s: receive checksum problem (status = %#x)\n",
+ sky2->netdev->name, status);
+
+ /* Disable checksum offload
+ * It will be reenabled on next ndo_set_features, but if it's
+ * really broken, will get disabled again
+ */
+ sky2->netdev->features &= ~NETIF_F_RXCSUM;
+ sky2_write32(sky2->hw, Q_ADDR(rxqaddr[sky2->port], Q_CSR),
+ BMU_DIS_RX_CHKSUM);
+ }
+}
+
+static void sky2_rx_tag(struct sky2_port *sky2, u16 length)
+{
+ struct sk_buff *skb;
+
+ skb = sky2->rx_ring[sky2->rx_next].skb;
+ __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), be16_to_cpu(length));
+}
+
+static void sky2_rx_hash(struct sky2_port *sky2, u32 status)
+{
+ struct sk_buff *skb;
+
+ skb = sky2->rx_ring[sky2->rx_next].skb;
+ skb_set_hash(skb, le32_to_cpu(status), PKT_HASH_TYPE_L3);
+}
+
+/* Process status response ring */
+static int sky2_status_intr(struct sky2_hw *hw, int to_do, u16 idx)
+{
+ int work_done = 0;
+ unsigned int total_bytes[2] = { 0 };
+ unsigned int total_packets[2] = { 0 };
+
+ if (to_do <= 0)
+ return work_done;
+
+ rmb();
+ do {
+ struct sky2_port *sky2;
+ struct sky2_status_le *le = hw->st_le + hw->st_idx;
+ unsigned port;
+ struct net_device *dev;
+ struct sk_buff *skb;
+ u32 status;
+ u16 length;
+ u8 opcode = le->opcode;
+
+ if (!(opcode & HW_OWNER))
+ break;
+
+ hw->st_idx = RING_NEXT(hw->st_idx, hw->st_size);
+
+ port = le->css & CSS_LINK_BIT;
+ dev = hw->dev[port];
+ sky2 = netdev_priv(dev);
+ length = le16_to_cpu(le->length);
+ status = le32_to_cpu(le->status);
+
+ le->opcode = 0;
+ switch (opcode & ~HW_OWNER) {
+ case OP_RXSTAT:
+ total_packets[port]++;
+ total_bytes[port] += length;
+
+ skb = sky2_receive(dev, length, status);
+ if (!skb)
+ break;
+
+ /* This chip reports checksum status differently */
+ if (hw->flags & SKY2_HW_NEW_LE) {
+ if ((dev->features & NETIF_F_RXCSUM) &&
+ (le->css & (CSS_ISIPV4 | CSS_ISIPV6)) &&
+ (le->css & CSS_TCPUDPCSOK))
+ skb->ip_summed = CHECKSUM_UNNECESSARY;
+ else
+ skb->ip_summed = CHECKSUM_NONE;
+ }
+
+ skb->protocol = eth_type_trans(skb, dev);
+ sky2_skb_rx(sky2, skb);
+
+ /* Stop after net poll weight */
+ if (++work_done >= to_do)
+ goto exit_loop;
+ break;
+
+ case OP_RXVLAN:
+ sky2_rx_tag(sky2, length);
+ break;
+
+ case OP_RXCHKSVLAN:
+ sky2_rx_tag(sky2, length);
+ /* fall through */
+ case OP_RXCHKS:
+ if (likely(dev->features & NETIF_F_RXCSUM))
+ sky2_rx_checksum(sky2, status);
+ break;
+
+ case OP_RSS_HASH:
+ sky2_rx_hash(sky2, status);
+ break;
+
+ case OP_TXINDEXLE:
+ /* TX index reports status for both ports */
+ sky2_tx_done(hw->dev[0], status & 0xfff);
+ if (hw->dev[1])
+ sky2_tx_done(hw->dev[1],
+ ((status >> 24) & 0xff)
+ | (u16)(length & 0xf) << 8);
+ break;
+
+ default:
+ if (net_ratelimit())
+ pr_warn("unknown status opcode 0x%x\n", opcode);
+ }
+ } while (hw->st_idx != idx);
+
+ /* Fully processed status ring so clear irq */
+ sky2_write32(hw, STAT_CTRL, SC_STAT_CLR_IRQ);
+
+exit_loop:
+ sky2_rx_done(hw, 0, total_packets[0], total_bytes[0]);
+ sky2_rx_done(hw, 1, total_packets[1], total_bytes[1]);
+
+ return work_done;
+}
+
+static void sky2_hw_error(struct sky2_hw *hw, unsigned port, u32 status)
+{
+ struct net_device *dev = hw->dev[port];
+
+ if (net_ratelimit())
+ netdev_info(dev, "hw error interrupt status 0x%x\n", status);
+
+ if (status & Y2_IS_PAR_RD1) {
+ if (net_ratelimit())
+ netdev_err(dev, "ram data read parity error\n");
+ /* Clear IRQ */
+ sky2_write16(hw, RAM_BUFFER(port, B3_RI_CTRL), RI_CLR_RD_PERR);
+ }
+
+ if (status & Y2_IS_PAR_WR1) {
+ if (net_ratelimit())
+ netdev_err(dev, "ram data write parity error\n");
+
+ sky2_write16(hw, RAM_BUFFER(port, B3_RI_CTRL), RI_CLR_WR_PERR);
+ }
+
+ if (status & Y2_IS_PAR_MAC1) {
+ if (net_ratelimit())
+ netdev_err(dev, "MAC parity error\n");
+ sky2_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_CLI_TX_PE);
+ }
+
+ if (status & Y2_IS_PAR_RX1) {
+ if (net_ratelimit())
+ netdev_err(dev, "RX parity error\n");
+ sky2_write32(hw, Q_ADDR(rxqaddr[port], Q_CSR), BMU_CLR_IRQ_PAR);
+ }
+
+ if (status & Y2_IS_TCP_TXA1) {
+ if (net_ratelimit())
+ netdev_err(dev, "TCP segmentation error\n");
+ sky2_write32(hw, Q_ADDR(txqaddr[port], Q_CSR), BMU_CLR_IRQ_TCP);
+ }
+}
+
+static void sky2_hw_intr(struct sky2_hw *hw)
+{
+ struct pci_dev *pdev = hw->pdev;
+ u32 status = sky2_read32(hw, B0_HWE_ISRC);
+ u32 hwmsk = sky2_read32(hw, B0_HWE_IMSK);
+
+ status &= hwmsk;
+
+ if (status & Y2_IS_TIST_OV)
+ sky2_write8(hw, GMAC_TI_ST_CTRL, GMT_ST_CLR_IRQ);
+
+ if (status & (Y2_IS_MST_ERR | Y2_IS_IRQ_STAT)) {
+ u16 pci_err;
+
+ sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON);
+ pci_err = sky2_pci_read16(hw, PCI_STATUS);
+ if (net_ratelimit())
+ dev_err(&pdev->dev, "PCI hardware error (0x%x)\n",
+ pci_err);
+
+ sky2_pci_write16(hw, PCI_STATUS,
+ pci_err | PCI_STATUS_ERROR_BITS);
+ sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF);
+ }
+
+ if (status & Y2_IS_PCI_EXP) {
+ /* PCI-Express uncorrectable Error occurred */
+ u32 err;
+
+ sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON);
+ err = sky2_read32(hw, Y2_CFG_AER + PCI_ERR_UNCOR_STATUS);
+ sky2_write32(hw, Y2_CFG_AER + PCI_ERR_UNCOR_STATUS,
+ 0xfffffffful);
+ if (net_ratelimit())
+ dev_err(&pdev->dev, "PCI Express error (0x%x)\n", err);
+
+ sky2_read32(hw, Y2_CFG_AER + PCI_ERR_UNCOR_STATUS);
+ sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF);
+ }
+
+ if (status & Y2_HWE_L1_MASK)
+ sky2_hw_error(hw, 0, status);
+ status >>= 8;
+ if (status & Y2_HWE_L1_MASK)
+ sky2_hw_error(hw, 1, status);
+}
+
+static void sky2_mac_intr(struct sky2_hw *hw, unsigned port)
+{
+ struct net_device *dev = hw->dev[port];
+ struct sky2_port *sky2 = netdev_priv(dev);
+ u8 status = sky2_read8(hw, SK_REG(port, GMAC_IRQ_SRC));
+
+ netif_info(sky2, intr, dev, "mac interrupt status 0x%x\n", status);
+
+ if (status & GM_IS_RX_CO_OV)
+ gma_read16(hw, port, GM_RX_IRQ_SRC);
+
+ if (status & GM_IS_TX_CO_OV)
+ gma_read16(hw, port, GM_TX_IRQ_SRC);
+
+ if (status & GM_IS_RX_FF_OR) {
+ ++dev->stats.rx_fifo_errors;
+ sky2_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_CLI_RX_FO);
+ }
+
+ if (status & GM_IS_TX_FF_UR) {
+ ++dev->stats.tx_fifo_errors;
+ sky2_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_CLI_TX_FU);
+ }
+}
+
+/* This should never happen it is a bug. */
+static void sky2_le_error(struct sky2_hw *hw, unsigned port, u16 q)
+{
+ struct net_device *dev = hw->dev[port];
+ u16 idx = sky2_read16(hw, Y2_QADDR(q, PREF_UNIT_GET_IDX));
+
+ dev_err(&hw->pdev->dev, "%s: descriptor error q=%#x get=%u put=%u\n",
+ dev->name, (unsigned) q, (unsigned) idx,
+ (unsigned) sky2_read16(hw, Y2_QADDR(q, PREF_UNIT_PUT_IDX)));
+
+ sky2_write32(hw, Q_ADDR(q, Q_CSR), BMU_CLR_IRQ_CHK);
+}
+
+static int sky2_rx_hung(struct net_device *dev)
+{
+ struct sky2_port *sky2 = netdev_priv(dev);
+ struct sky2_hw *hw = sky2->hw;
+ unsigned port = sky2->port;
+ unsigned rxq = rxqaddr[port];
+ u32 mac_rp = sky2_read32(hw, SK_REG(port, RX_GMF_RP));
+ u8 mac_lev = sky2_read8(hw, SK_REG(port, RX_GMF_RLEV));
+ u8 fifo_rp = sky2_read8(hw, Q_ADDR(rxq, Q_RP));
+ u8 fifo_lev = sky2_read8(hw, Q_ADDR(rxq, Q_RL));
+
+ /* If idle and MAC or PCI is stuck */
+ if (sky2->check.last == dev->last_rx &&
+ ((mac_rp == sky2->check.mac_rp &&
+ mac_lev != 0 && mac_lev >= sky2->check.mac_lev) ||
+ /* Check if the PCI RX hang */
+ (fifo_rp == sky2->check.fifo_rp &&
+ fifo_lev != 0 && fifo_lev >= sky2->check.fifo_lev))) {
+ netdev_printk(KERN_DEBUG, dev,
+ "hung mac %d:%d fifo %d (%d:%d)\n",
+ mac_lev, mac_rp, fifo_lev,
+ fifo_rp, sky2_read8(hw, Q_ADDR(rxq, Q_WP)));
+ return 1;
+ } else {
+ sky2->check.last = dev->last_rx;
+ sky2->check.mac_rp = mac_rp;
+ sky2->check.mac_lev = mac_lev;
+ sky2->check.fifo_rp = fifo_rp;
+ sky2->check.fifo_lev = fifo_lev;
+ return 0;
+ }
+}
+
+static void sky2_watchdog(unsigned long arg)
+{
+ struct sky2_hw *hw = (struct sky2_hw *) arg;
+
+ /* Check for lost IRQ once a second */
+ if (sky2_read32(hw, B0_ISRC)) {
+ napi_schedule(&hw->napi);
+ } else {
+ int i, active = 0;
+
+ for (i = 0; i < hw->ports; i++) {
+ struct net_device *dev = hw->dev[i];
+ if (!netif_running(dev))
+ continue;
+ ++active;
+
+ /* For chips with Rx FIFO, check if stuck */
+ if ((hw->flags & SKY2_HW_RAM_BUFFER) &&
+ sky2_rx_hung(dev)) {
+ netdev_info(dev, "receiver hang detected\n");
+ schedule_work(&hw->restart_work);
+ return;
+ }
+ }
+
+ if (active == 0)
+ return;
+ }
+
+ mod_timer(&hw->watchdog_timer, round_jiffies(jiffies + HZ));
+}
+
+/* Hardware/software error handling */
+static void sky2_err_intr(struct sky2_hw *hw, u32 status)
+{
+ if (net_ratelimit())
+ dev_warn(&hw->pdev->dev, "error interrupt status=%#x\n", status);
+
+ if (status & Y2_IS_HW_ERR)
+ sky2_hw_intr(hw);
+
+ if (status & Y2_IS_IRQ_MAC1)
+ sky2_mac_intr(hw, 0);
+
+ if (status & Y2_IS_IRQ_MAC2)
+ sky2_mac_intr(hw, 1);
+
+ if (status & Y2_IS_CHK_RX1)
+ sky2_le_error(hw, 0, Q_R1);
+
+ if (status & Y2_IS_CHK_RX2)
+ sky2_le_error(hw, 1, Q_R2);
+
+ if (status & Y2_IS_CHK_TXA1)
+ sky2_le_error(hw, 0, Q_XA1);
+
+ if (status & Y2_IS_CHK_TXA2)
+ sky2_le_error(hw, 1, Q_XA2);
+}
+
+static int sky2_poll(struct napi_struct *napi, int work_limit)
+{
+ struct sky2_hw *hw = container_of(napi, struct sky2_hw, napi);
+ u32 status = sky2_read32(hw, B0_Y2_SP_EISR);
+ int work_done = 0;
+ u16 idx;
+
+ if (unlikely(status & Y2_IS_ERROR))
+ sky2_err_intr(hw, status);
+
+ if (status & Y2_IS_IRQ_PHY1)
+ sky2_phy_intr(hw, 0);
+
+ if (status & Y2_IS_IRQ_PHY2)
+ sky2_phy_intr(hw, 1);
+
+ if (status & Y2_IS_PHY_QLNK)
+ sky2_qlink_intr(hw);
+
+ while ((idx = sky2_read16(hw, STAT_PUT_IDX)) != hw->st_idx) {
+ work_done += sky2_status_intr(hw, work_limit - work_done, idx);
+
+ if (work_done >= work_limit)
+ goto done;
+ }
+
+ napi_complete(napi);
+ sky2_read32(hw, B0_Y2_SP_LISR);
+done:
+
+ return work_done;
+}
+
+static irqreturn_t sky2_intr(int irq, void *dev_id)
+{
+ struct sky2_hw *hw = dev_id;
+ u32 status;
+
+ /* Reading this mask interrupts as side effect */
+ status = sky2_read32(hw, B0_Y2_SP_ISRC2);
+ if (status == 0 || status == ~0) {
+ sky2_write32(hw, B0_Y2_SP_ICR, 2);
+ return IRQ_NONE;
+ }
+
+ prefetch(&hw->st_le[hw->st_idx]);
+
+ napi_schedule(&hw->napi);
+
+ return IRQ_HANDLED;
+}
+
+#ifdef CONFIG_NET_POLL_CONTROLLER
+static void sky2_netpoll(struct net_device *dev)
+{
+ struct sky2_port *sky2 = netdev_priv(dev);
+
+ napi_schedule(&sky2->hw->napi);
+}
+#endif
+
+/* Chip internal frequency for clock calculations */
+static u32 sky2_mhz(const struct sky2_hw *hw)
+{
+ switch (hw->chip_id) {
+ case CHIP_ID_YUKON_EC:
+ case CHIP_ID_YUKON_EC_U:
+ case CHIP_ID_YUKON_EX:
+ case CHIP_ID_YUKON_SUPR:
+ case CHIP_ID_YUKON_UL_2:
+ case CHIP_ID_YUKON_OPT:
+ case CHIP_ID_YUKON_PRM:
+ case CHIP_ID_YUKON_OP_2:
+ return 125;
+
+ case CHIP_ID_YUKON_FE:
+ return 100;
+
+ case CHIP_ID_YUKON_FE_P:
+ return 50;
+
+ case CHIP_ID_YUKON_XL:
+ return 156;
+
+ default:
+ BUG();
+ }
+}
+
+static inline u32 sky2_us2clk(const struct sky2_hw *hw, u32 us)
+{
+ return sky2_mhz(hw) * us;
+}
+
+static inline u32 sky2_clk2us(const struct sky2_hw *hw, u32 clk)
+{
+ return clk / sky2_mhz(hw);
+}
+
+
+static int sky2_init(struct sky2_hw *hw)
+{
+ u8 t8;
+
+ /* Enable all clocks and check for bad PCI access */
+ sky2_pci_write32(hw, PCI_DEV_REG3, 0);
+
+ sky2_write8(hw, B0_CTST, CS_RST_CLR);
+
+ hw->chip_id = sky2_read8(hw, B2_CHIP_ID);
+ hw->chip_rev = (sky2_read8(hw, B2_MAC_CFG) & CFG_CHIP_R_MSK) >> 4;
+
+ switch (hw->chip_id) {
+ case CHIP_ID_YUKON_XL:
+ hw->flags = SKY2_HW_GIGABIT | SKY2_HW_NEWER_PHY;
+ if (hw->chip_rev < CHIP_REV_YU_XL_A2)
+ hw->flags |= SKY2_HW_RSS_BROKEN;
+ break;
+
+ case CHIP_ID_YUKON_EC_U:
+ hw->flags = SKY2_HW_GIGABIT
+ | SKY2_HW_NEWER_PHY
+ | SKY2_HW_ADV_POWER_CTL;
+ break;
+
+ case CHIP_ID_YUKON_EX:
+ hw->flags = SKY2_HW_GIGABIT
+ | SKY2_HW_NEWER_PHY
+ | SKY2_HW_NEW_LE
+ | SKY2_HW_ADV_POWER_CTL
+ | SKY2_HW_RSS_CHKSUM;
+
+ /* New transmit checksum */
+ if (hw->chip_rev != CHIP_REV_YU_EX_B0)
+ hw->flags |= SKY2_HW_AUTO_TX_SUM;
+ break;
+
+ case CHIP_ID_YUKON_EC:
+ /* This rev is really old, and requires untested workarounds */
+ if (hw->chip_rev == CHIP_REV_YU_EC_A1) {
+ dev_err(&hw->pdev->dev, "unsupported revision Yukon-EC rev A1\n");
+ return -EOPNOTSUPP;
+ }
+ hw->flags = SKY2_HW_GIGABIT | SKY2_HW_RSS_BROKEN;
+ break;
+
+ case CHIP_ID_YUKON_FE:
+ hw->flags = SKY2_HW_RSS_BROKEN;
+ break;
+
+ case CHIP_ID_YUKON_FE_P:
+ hw->flags = SKY2_HW_NEWER_PHY
+ | SKY2_HW_NEW_LE
+ | SKY2_HW_AUTO_TX_SUM
+ | SKY2_HW_ADV_POWER_CTL;
+
+ /* The workaround for status conflicts VLAN tag detection. */
+ if (hw->chip_rev == CHIP_REV_YU_FE2_A0)
+ hw->flags |= SKY2_HW_VLAN_BROKEN | SKY2_HW_RSS_CHKSUM;
+ break;
+
+ case CHIP_ID_YUKON_SUPR:
+ hw->flags = SKY2_HW_GIGABIT
+ | SKY2_HW_NEWER_PHY
+ | SKY2_HW_NEW_LE
+ | SKY2_HW_AUTO_TX_SUM
+ | SKY2_HW_ADV_POWER_CTL;
+
+ if (hw->chip_rev == CHIP_REV_YU_SU_A0)
+ hw->flags |= SKY2_HW_RSS_CHKSUM;
+ break;
+
+ case CHIP_ID_YUKON_UL_2:
+ hw->flags = SKY2_HW_GIGABIT
+ | SKY2_HW_ADV_POWER_CTL;
+ break;
+
+ case CHIP_ID_YUKON_OPT:
+ case CHIP_ID_YUKON_PRM:
+ case CHIP_ID_YUKON_OP_2:
+ hw->flags = SKY2_HW_GIGABIT
+ | SKY2_HW_NEW_LE
+ | SKY2_HW_ADV_POWER_CTL;
+ break;
+
+ default:
+ dev_err(&hw->pdev->dev, "unsupported chip type 0x%x\n",
+ hw->chip_id);
+ return -EOPNOTSUPP;
+ }
+
+ hw->pmd_type = sky2_read8(hw, B2_PMD_TYP);
+ if (hw->pmd_type == 'L' || hw->pmd_type == 'S' || hw->pmd_type == 'P')
+ hw->flags |= SKY2_HW_FIBRE_PHY;
+
+ hw->ports = 1;
+ t8 = sky2_read8(hw, B2_Y2_HW_RES);
+ if ((t8 & CFG_DUAL_MAC_MSK) == CFG_DUAL_MAC_MSK) {
+ if (!(sky2_read8(hw, B2_Y2_CLK_GATE) & Y2_STATUS_LNK2_INAC))
+ ++hw->ports;
+ }
+
+ if (sky2_read8(hw, B2_E_0))
+ hw->flags |= SKY2_HW_RAM_BUFFER;
+
+ return 0;
+}
+
+static void sky2_reset(struct sky2_hw *hw)
+{
+ struct pci_dev *pdev = hw->pdev;
+ u16 status;
+ int i;
+ u32 hwe_mask = Y2_HWE_ALL_MASK;
+
+ /* disable ASF */
+ if (hw->chip_id == CHIP_ID_YUKON_EX
+ || hw->chip_id == CHIP_ID_YUKON_SUPR) {
+ sky2_write32(hw, CPU_WDOG, 0);
+ status = sky2_read16(hw, HCU_CCSR);
+ status &= ~(HCU_CCSR_AHB_RST | HCU_CCSR_CPU_RST_MODE |
+ HCU_CCSR_UC_STATE_MSK);
+ /*
+ * CPU clock divider shouldn't be used because
+ * - ASF firmware may malfunction
+ * - Yukon-Supreme: Parallel FLASH doesn't support divided clocks
+ */
+ status &= ~HCU_CCSR_CPU_CLK_DIVIDE_MSK;
+ sky2_write16(hw, HCU_CCSR, status);
+ sky2_write32(hw, CPU_WDOG, 0);
+ } else
+ sky2_write8(hw, B28_Y2_ASF_STAT_CMD, Y2_ASF_RESET);
+ sky2_write16(hw, B0_CTST, Y2_ASF_DISABLE);
+
+ /* do a SW reset */
+ sky2_write8(hw, B0_CTST, CS_RST_SET);
+ sky2_write8(hw, B0_CTST, CS_RST_CLR);
+
+ /* allow writes to PCI config */
+ sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON);
+
+ /* clear PCI errors, if any */
+ status = sky2_pci_read16(hw, PCI_STATUS);
+ status |= PCI_STATUS_ERROR_BITS;
+ sky2_pci_write16(hw, PCI_STATUS, status);
+
+ sky2_write8(hw, B0_CTST, CS_MRST_CLR);
+
+ if (pci_is_pcie(pdev)) {
+ sky2_write32(hw, Y2_CFG_AER + PCI_ERR_UNCOR_STATUS,
+ 0xfffffffful);
+
+ /* If error bit is stuck on ignore it */
+ if (sky2_read32(hw, B0_HWE_ISRC) & Y2_IS_PCI_EXP)
+ dev_info(&pdev->dev, "ignoring stuck error report bit\n");
+ else
+ hwe_mask |= Y2_IS_PCI_EXP;
+ }
+
+ sky2_power_on(hw);
+ sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF);
+
+ for (i = 0; i < hw->ports; i++) {
+ sky2_write8(hw, SK_REG(i, GMAC_LINK_CTRL), GMLC_RST_SET);
+ sky2_write8(hw, SK_REG(i, GMAC_LINK_CTRL), GMLC_RST_CLR);
+
+ if (hw->chip_id == CHIP_ID_YUKON_EX ||
+ hw->chip_id == CHIP_ID_YUKON_SUPR)
+ sky2_write16(hw, SK_REG(i, GMAC_CTRL),
+ GMC_BYP_MACSECRX_ON | GMC_BYP_MACSECTX_ON
+ | GMC_BYP_RETR_ON);
+
+ }
+
+ if (hw->chip_id == CHIP_ID_YUKON_SUPR && hw->chip_rev > CHIP_REV_YU_SU_B0) {
+ /* enable MACSec clock gating */
+ sky2_pci_write32(hw, PCI_DEV_REG3, P_CLK_MACSEC_DIS);
+ }
+
+ if (hw->chip_id == CHIP_ID_YUKON_OPT ||
+ hw->chip_id == CHIP_ID_YUKON_PRM ||
+ hw->chip_id == CHIP_ID_YUKON_OP_2) {
+ u16 reg;
+
+ if (hw->chip_id == CHIP_ID_YUKON_OPT && hw->chip_rev == 0) {
+ /* disable PCI-E PHY power down (set PHY reg 0x80, bit 7 */
+ sky2_write32(hw, Y2_PEX_PHY_DATA, (0x80UL << 16) | (1 << 7));
+
+ /* set PHY Link Detect Timer to 1.1 second (11x 100ms) */
+ reg = 10;
+
+ /* re-enable PEX PM in PEX PHY debug reg. 8 (clear bit 12) */
+ sky2_write32(hw, Y2_PEX_PHY_DATA, PEX_DB_ACCESS | (0x08UL << 16));
+ } else {
+ /* set PHY Link Detect Timer to 0.4 second (4x 100ms) */
+ reg = 3;
+ }
+
+ reg <<= PSM_CONFIG_REG4_TIMER_PHY_LINK_DETECT_BASE;
+ reg |= PSM_CONFIG_REG4_RST_PHY_LINK_DETECT;
+
+ /* reset PHY Link Detect */
+ sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON);
+ sky2_pci_write16(hw, PSM_CONFIG_REG4, reg);
+
+ /* check if PSMv2 was running before */
+ reg = sky2_pci_read16(hw, PSM_CONFIG_REG3);
+ if (reg & PCI_EXP_LNKCTL_ASPMC)
+ /* restore the PCIe Link Control register */
+ sky2_pci_write16(hw, pdev->pcie_cap + PCI_EXP_LNKCTL,
+ reg);
+
+ if (hw->chip_id == CHIP_ID_YUKON_PRM &&
+ hw->chip_rev == CHIP_REV_YU_PRM_A0) {
+ /* change PHY Interrupt polarity to low active */
+ reg = sky2_read16(hw, GPHY_CTRL);
+ sky2_write16(hw, GPHY_CTRL, reg | GPC_INTPOL);
+
+ /* adapt HW for low active PHY Interrupt */
+ reg = sky2_read16(hw, Y2_CFG_SPC + PCI_LDO_CTRL);
+ sky2_write16(hw, Y2_CFG_SPC + PCI_LDO_CTRL, reg | PHY_M_UNDOC1);
+ }
+
+ sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF);
+
+ /* re-enable PEX PM in PEX PHY debug reg. 8 (clear bit 12) */
+ sky2_write32(hw, Y2_PEX_PHY_DATA, PEX_DB_ACCESS | (0x08UL << 16));
+ }
+
+ /* Clear I2C IRQ noise */
+ sky2_write32(hw, B2_I2C_IRQ, 1);
+
+ /* turn off hardware timer (unused) */
+ sky2_write8(hw, B2_TI_CTRL, TIM_STOP);
+ sky2_write8(hw, B2_TI_CTRL, TIM_CLR_IRQ);
+
+ /* Turn off descriptor polling */
+ sky2_write32(hw, B28_DPT_CTRL, DPT_STOP);
+
+ /* Turn off receive timestamp */
+ sky2_write8(hw, GMAC_TI_ST_CTRL, GMT_ST_STOP);
+ sky2_write8(hw, GMAC_TI_ST_CTRL, GMT_ST_CLR_IRQ);
+
+ /* enable the Tx Arbiters */
+ for (i = 0; i < hw->ports; i++)
+ sky2_write8(hw, SK_REG(i, TXA_CTRL), TXA_ENA_ARB);
+
+ /* Initialize ram interface */
+ for (i = 0; i < hw->ports; i++) {
+ sky2_write8(hw, RAM_BUFFER(i, B3_RI_CTRL), RI_RST_CLR);
+
+ sky2_write8(hw, RAM_BUFFER(i, B3_RI_WTO_R1), SK_RI_TO_53);
+ sky2_write8(hw, RAM_BUFFER(i, B3_RI_WTO_XA1), SK_RI_TO_53);
+ sky2_write8(hw, RAM_BUFFER(i, B3_RI_WTO_XS1), SK_RI_TO_53);
+ sky2_write8(hw, RAM_BUFFER(i, B3_RI_RTO_R1), SK_RI_TO_53);
+ sky2_write8(hw, RAM_BUFFER(i, B3_RI_RTO_XA1), SK_RI_TO_53);
+ sky2_write8(hw, RAM_BUFFER(i, B3_RI_RTO_XS1), SK_RI_TO_53);
+ sky2_write8(hw, RAM_BUFFER(i, B3_RI_WTO_R2), SK_RI_TO_53);
+ sky2_write8(hw, RAM_BUFFER(i, B3_RI_WTO_XA2), SK_RI_TO_53);
+ sky2_write8(hw, RAM_BUFFER(i, B3_RI_WTO_XS2), SK_RI_TO_53);
+ sky2_write8(hw, RAM_BUFFER(i, B3_RI_RTO_R2), SK_RI_TO_53);
+ sky2_write8(hw, RAM_BUFFER(i, B3_RI_RTO_XA2), SK_RI_TO_53);
+ sky2_write8(hw, RAM_BUFFER(i, B3_RI_RTO_XS2), SK_RI_TO_53);
+ }
+
+ sky2_write32(hw, B0_HWE_IMSK, hwe_mask);
+
+ for (i = 0; i < hw->ports; i++)
+ sky2_gmac_reset(hw, i);
+
+ memset(hw->st_le, 0, hw->st_size * sizeof(struct sky2_status_le));
+ hw->st_idx = 0;
+
+ sky2_write32(hw, STAT_CTRL, SC_STAT_RST_SET);
+ sky2_write32(hw, STAT_CTRL, SC_STAT_RST_CLR);
+
+ sky2_write32(hw, STAT_LIST_ADDR_LO, hw->st_dma);
+ sky2_write32(hw, STAT_LIST_ADDR_HI, (u64) hw->st_dma >> 32);
+
+ /* Set the list last index */
+ sky2_write16(hw, STAT_LAST_IDX, hw->st_size - 1);
+
+ sky2_write16(hw, STAT_TX_IDX_TH, 10);
+ sky2_write8(hw, STAT_FIFO_WM, 16);
+
+ /* set Status-FIFO ISR watermark */
+ if (hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev == 0)
+ sky2_write8(hw, STAT_FIFO_ISR_WM, 4);
+ else
+ sky2_write8(hw, STAT_FIFO_ISR_WM, 16);
+
+ sky2_write32(hw, STAT_TX_TIMER_INI, sky2_us2clk(hw, 1000));
+ sky2_write32(hw, STAT_ISR_TIMER_INI, sky2_us2clk(hw, 20));
+ sky2_write32(hw, STAT_LEV_TIMER_INI, sky2_us2clk(hw, 100));
+
+ /* enable status unit */
+ sky2_write32(hw, STAT_CTRL, SC_STAT_OP_ON);
+
+ sky2_write8(hw, STAT_TX_TIMER_CTRL, TIM_START);
+ sky2_write8(hw, STAT_LEV_TIMER_CTRL, TIM_START);
+ sky2_write8(hw, STAT_ISR_TIMER_CTRL, TIM_START);
+}
+
+/* Take device down (offline).
+ * Equivalent to doing dev_stop() but this does not
+ * inform upper layers of the transition.
+ */
+static void sky2_detach(struct net_device *dev)
+{
+ if (netif_running(dev)) {
+ netif_tx_lock(dev);
+ netif_device_detach(dev); /* stop txq */
+ netif_tx_unlock(dev);
+ sky2_close(dev);
+ }
+}
+
+/* Bring device back after doing sky2_detach */
+static int sky2_reattach(struct net_device *dev)
+{
+ int err = 0;
+
+ if (netif_running(dev)) {
+ err = sky2_open(dev);
+ if (err) {
+ netdev_info(dev, "could not restart %d\n", err);
+ dev_close(dev);
+ } else {
+ netif_device_attach(dev);
+ sky2_set_multicast(dev);
+ }
+ }
+
+ return err;
+}
+
+static void sky2_all_down(struct sky2_hw *hw)
+{
+ int i;
+
+ if (hw->flags & SKY2_HW_IRQ_SETUP) {
+ sky2_write32(hw, B0_IMSK, 0);
+ sky2_read32(hw, B0_IMSK);
+
+ synchronize_irq(hw->pdev->irq);
+ napi_disable(&hw->napi);
+ }
+
+ for (i = 0; i < hw->ports; i++) {
+ struct net_device *dev = hw->dev[i];
+ struct sky2_port *sky2 = netdev_priv(dev);
+
+ if (!netif_running(dev))
+ continue;
+
+ netif_carrier_off(dev);
+ netif_tx_disable(dev);
+ sky2_hw_down(sky2);
+ }
+}
+
+static void sky2_all_up(struct sky2_hw *hw)
+{
+ u32 imask = Y2_IS_BASE;
+ int i;
+
+ for (i = 0; i < hw->ports; i++) {
+ struct net_device *dev = hw->dev[i];
+ struct sky2_port *sky2 = netdev_priv(dev);
+
+ if (!netif_running(dev))
+ continue;
+
+ sky2_hw_up(sky2);
+ sky2_set_multicast(dev);
+ imask |= portirq_msk[i];
+ netif_wake_queue(dev);
+ }
+
+ if (hw->flags & SKY2_HW_IRQ_SETUP) {
+ sky2_write32(hw, B0_IMSK, imask);
+ sky2_read32(hw, B0_IMSK);
+ sky2_read32(hw, B0_Y2_SP_LISR);
+ napi_enable(&hw->napi);
+ }
+}
+
+static void sky2_restart(struct work_struct *work)
+{
+ struct sky2_hw *hw = container_of(work, struct sky2_hw, restart_work);
+
+ rtnl_lock();
+
+ sky2_all_down(hw);
+ sky2_reset(hw);
+ sky2_all_up(hw);
+
+ rtnl_unlock();
+}
+
+static inline u8 sky2_wol_supported(const struct sky2_hw *hw)
+{
+ return sky2_is_copper(hw) ? (WAKE_PHY | WAKE_MAGIC) : 0;
+}
+
+static void sky2_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
+{
+ const struct sky2_port *sky2 = netdev_priv(dev);
+
+ wol->supported = sky2_wol_supported(sky2->hw);
+ wol->wolopts = sky2->wol;
+}
+
+static int sky2_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
+{
+ struct sky2_port *sky2 = netdev_priv(dev);
+ struct sky2_hw *hw = sky2->hw;
+ bool enable_wakeup = false;
+ int i;
+
+ if ((wol->wolopts & ~sky2_wol_supported(sky2->hw)) ||
+ !device_can_wakeup(&hw->pdev->dev))
+ return -EOPNOTSUPP;
+
+ sky2->wol = wol->wolopts;
+
+ for (i = 0; i < hw->ports; i++) {
+ struct net_device *dev = hw->dev[i];
+ struct sky2_port *sky2 = netdev_priv(dev);
+
+ if (sky2->wol)
+ enable_wakeup = true;
+ }
+ device_set_wakeup_enable(&hw->pdev->dev, enable_wakeup);
+
+ return 0;
+}
+
+static u32 sky2_supported_modes(const struct sky2_hw *hw)
+{
+ if (sky2_is_copper(hw)) {
+ u32 modes = SUPPORTED_10baseT_Half
+ | SUPPORTED_10baseT_Full
+ | SUPPORTED_100baseT_Half
+ | SUPPORTED_100baseT_Full;
+
+ if (hw->flags & SKY2_HW_GIGABIT)
+ modes |= SUPPORTED_1000baseT_Half
+ | SUPPORTED_1000baseT_Full;
+ return modes;
+ } else
+ return SUPPORTED_1000baseT_Half
+ | SUPPORTED_1000baseT_Full;
+}
+
+static int sky2_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
+{
+ struct sky2_port *sky2 = netdev_priv(dev);
+ struct sky2_hw *hw = sky2->hw;
+
+ ecmd->transceiver = XCVR_INTERNAL;
+ ecmd->supported = sky2_supported_modes(hw);
+ ecmd->phy_address = PHY_ADDR_MARV;
+ if (sky2_is_copper(hw)) {
+ ecmd->port = PORT_TP;
+ ethtool_cmd_speed_set(ecmd, sky2->speed);
+ ecmd->supported |= SUPPORTED_Autoneg | SUPPORTED_TP;
+ } else {
+ ethtool_cmd_speed_set(ecmd, SPEED_1000);
+ ecmd->port = PORT_FIBRE;
+ ecmd->supported |= SUPPORTED_Autoneg | SUPPORTED_FIBRE;
+ }
+
+ ecmd->advertising = sky2->advertising;
+ ecmd->autoneg = (sky2->flags & SKY2_FLAG_AUTO_SPEED)
+ ? AUTONEG_ENABLE : AUTONEG_DISABLE;
+ ecmd->duplex = sky2->duplex;
+ return 0;
+}
+
+static int sky2_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
+{
+ struct sky2_port *sky2 = netdev_priv(dev);
+ const struct sky2_hw *hw = sky2->hw;
+ u32 supported = sky2_supported_modes(hw);
+
+ if (ecmd->autoneg == AUTONEG_ENABLE) {
+ if (ecmd->advertising & ~supported)
+ return -EINVAL;
+
+ if (sky2_is_copper(hw))
+ sky2->advertising = ecmd->advertising |
+ ADVERTISED_TP |
+ ADVERTISED_Autoneg;
+ else
+ sky2->advertising = ecmd->advertising |
+ ADVERTISED_FIBRE |
+ ADVERTISED_Autoneg;
+
+ sky2->flags |= SKY2_FLAG_AUTO_SPEED;
+ sky2->duplex = -1;
+ sky2->speed = -1;
+ } else {
+ u32 setting;
+ u32 speed = ethtool_cmd_speed(ecmd);
+
+ switch (speed) {
+ case SPEED_1000:
+ if (ecmd->duplex == DUPLEX_FULL)
+ setting = SUPPORTED_1000baseT_Full;
+ else if (ecmd->duplex == DUPLEX_HALF)
+ setting = SUPPORTED_1000baseT_Half;
+ else
+ return -EINVAL;
+ break;
+ case SPEED_100:
+ if (ecmd->duplex == DUPLEX_FULL)
+ setting = SUPPORTED_100baseT_Full;
+ else if (ecmd->duplex == DUPLEX_HALF)
+ setting = SUPPORTED_100baseT_Half;
+ else
+ return -EINVAL;
+ break;
+
+ case SPEED_10:
+ if (ecmd->duplex == DUPLEX_FULL)
+ setting = SUPPORTED_10baseT_Full;
+ else if (ecmd->duplex == DUPLEX_HALF)
+ setting = SUPPORTED_10baseT_Half;
+ else
+ return -EINVAL;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ if ((setting & supported) == 0)
+ return -EINVAL;
+
+ sky2->speed = speed;
+ sky2->duplex = ecmd->duplex;
+ sky2->flags &= ~SKY2_FLAG_AUTO_SPEED;
+ }
+
+ if (netif_running(dev)) {
+ sky2_phy_reinit(sky2);
+ sky2_set_multicast(dev);
+ }
+
+ return 0;
+}
+
+static void sky2_get_drvinfo(struct net_device *dev,
+ struct ethtool_drvinfo *info)
+{
+ struct sky2_port *sky2 = netdev_priv(dev);
+
+ strlcpy(info->driver, DRV_NAME, sizeof(info->driver));
+ strlcpy(info->version, DRV_VERSION, sizeof(info->version));
+ strlcpy(info->bus_info, pci_name(sky2->hw->pdev),
+ sizeof(info->bus_info));
+}
+
+static const struct sky2_stat {
+ char name[ETH_GSTRING_LEN];
+ u16 offset;
+} sky2_stats[] = {
+ { "tx_bytes", GM_TXO_OK_HI },
+ { "rx_bytes", GM_RXO_OK_HI },
+ { "tx_broadcast", GM_TXF_BC_OK },
+ { "rx_broadcast", GM_RXF_BC_OK },
+ { "tx_multicast", GM_TXF_MC_OK },
+ { "rx_multicast", GM_RXF_MC_OK },
+ { "tx_unicast", GM_TXF_UC_OK },
+ { "rx_unicast", GM_RXF_UC_OK },
+ { "tx_mac_pause", GM_TXF_MPAUSE },
+ { "rx_mac_pause", GM_RXF_MPAUSE },
+ { "collisions", GM_TXF_COL },
+ { "late_collision",GM_TXF_LAT_COL },
+ { "aborted", GM_TXF_ABO_COL },
+ { "single_collisions", GM_TXF_SNG_COL },
+ { "multi_collisions", GM_TXF_MUL_COL },
+
+ { "rx_short", GM_RXF_SHT },
+ { "rx_runt", GM_RXE_FRAG },
+ { "rx_64_byte_packets", GM_RXF_64B },
+ { "rx_65_to_127_byte_packets", GM_RXF_127B },
+ { "rx_128_to_255_byte_packets", GM_RXF_255B },
+ { "rx_256_to_511_byte_packets", GM_RXF_511B },
+ { "rx_512_to_1023_byte_packets", GM_RXF_1023B },
+ { "rx_1024_to_1518_byte_packets", GM_RXF_1518B },
+ { "rx_1518_to_max_byte_packets", GM_RXF_MAX_SZ },
+ { "rx_too_long", GM_RXF_LNG_ERR },
+ { "rx_fifo_overflow", GM_RXE_FIFO_OV },
+ { "rx_jabber", GM_RXF_JAB_PKT },
+ { "rx_fcs_error", GM_RXF_FCS_ERR },
+
+ { "tx_64_byte_packets", GM_TXF_64B },
+ { "tx_65_to_127_byte_packets", GM_TXF_127B },
+ { "tx_128_to_255_byte_packets", GM_TXF_255B },
+ { "tx_256_to_511_byte_packets", GM_TXF_511B },
+ { "tx_512_to_1023_byte_packets", GM_TXF_1023B },
+ { "tx_1024_to_1518_byte_packets", GM_TXF_1518B },
+ { "tx_1519_to_max_byte_packets", GM_TXF_MAX_SZ },
+ { "tx_fifo_underrun", GM_TXE_FIFO_UR },
+};
+
+static u32 sky2_get_msglevel(struct net_device *netdev)
+{
+ struct sky2_port *sky2 = netdev_priv(netdev);
+ return sky2->msg_enable;
+}
+
+static int sky2_nway_reset(struct net_device *dev)
+{
+ struct sky2_port *sky2 = netdev_priv(dev);
+
+ if (!netif_running(dev) || !(sky2->flags & SKY2_FLAG_AUTO_SPEED))
+ return -EINVAL;
+
+ sky2_phy_reinit(sky2);
+ sky2_set_multicast(dev);
+
+ return 0;
+}
+
+static void sky2_phy_stats(struct sky2_port *sky2, u64 * data, unsigned count)
+{
+ struct sky2_hw *hw = sky2->hw;
+ unsigned port = sky2->port;
+ int i;
+
+ data[0] = get_stats64(hw, port, GM_TXO_OK_LO);
+ data[1] = get_stats64(hw, port, GM_RXO_OK_LO);
+
+ for (i = 2; i < count; i++)
+ data[i] = get_stats32(hw, port, sky2_stats[i].offset);
+}
+
+static void sky2_set_msglevel(struct net_device *netdev, u32 value)
+{
+ struct sky2_port *sky2 = netdev_priv(netdev);
+ sky2->msg_enable = value;
+}
+
+static int sky2_get_sset_count(struct net_device *dev, int sset)
+{
+ switch (sset) {
+ case ETH_SS_STATS:
+ return ARRAY_SIZE(sky2_stats);
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+static void sky2_get_ethtool_stats(struct net_device *dev,
+ struct ethtool_stats *stats, u64 * data)
+{
+ struct sky2_port *sky2 = netdev_priv(dev);
+
+ sky2_phy_stats(sky2, data, ARRAY_SIZE(sky2_stats));
+}
+
+static void sky2_get_strings(struct net_device *dev, u32 stringset, u8 * data)
+{
+ int i;
+
+ switch (stringset) {
+ case ETH_SS_STATS:
+ for (i = 0; i < ARRAY_SIZE(sky2_stats); i++)
+ memcpy(data + i * ETH_GSTRING_LEN,
+ sky2_stats[i].name, ETH_GSTRING_LEN);
+ break;
+ }
+}
+
+static int sky2_set_mac_address(struct net_device *dev, void *p)
+{
+ struct sky2_port *sky2 = netdev_priv(dev);
+ struct sky2_hw *hw = sky2->hw;
+ unsigned port = sky2->port;
+ const struct sockaddr *addr = p;
+
+ if (!is_valid_ether_addr(addr->sa_data))
+ return -EADDRNOTAVAIL;
+
+ memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN);
+ memcpy_toio(hw->regs + B2_MAC_1 + port * 8,
+ dev->dev_addr, ETH_ALEN);
+ memcpy_toio(hw->regs + B2_MAC_2 + port * 8,
+ dev->dev_addr, ETH_ALEN);
+
+ /* virtual address for data */
+ gma_set_addr(hw, port, GM_SRC_ADDR_2L, dev->dev_addr);
+
+ /* physical address: used for pause frames */
+ gma_set_addr(hw, port, GM_SRC_ADDR_1L, dev->dev_addr);
+
+ return 0;
+}
+
+static inline void sky2_add_filter(u8 filter[8], const u8 *addr)
+{
+ u32 bit;
+
+ bit = ether_crc(ETH_ALEN, addr) & 63;
+ filter[bit >> 3] |= 1 << (bit & 7);
+}
+
+static void sky2_set_multicast(struct net_device *dev)
+{
+ struct sky2_port *sky2 = netdev_priv(dev);
+ struct sky2_hw *hw = sky2->hw;
+ unsigned port = sky2->port;
+ struct netdev_hw_addr *ha;
+ u16 reg;
+ u8 filter[8];
+ int rx_pause;
+ static const u8 pause_mc_addr[ETH_ALEN] = { 0x1, 0x80, 0xc2, 0x0, 0x0, 0x1 };
+
+ rx_pause = (sky2->flow_status == FC_RX || sky2->flow_status == FC_BOTH);
+ memset(filter, 0, sizeof(filter));
+
+ reg = gma_read16(hw, port, GM_RX_CTRL);
+ reg |= GM_RXCR_UCF_ENA;
+
+ if (dev->flags & IFF_PROMISC) /* promiscuous */
+ reg &= ~(GM_RXCR_UCF_ENA | GM_RXCR_MCF_ENA);
+ else if (dev->flags & IFF_ALLMULTI)
+ memset(filter, 0xff, sizeof(filter));
+ else if (netdev_mc_empty(dev) && !rx_pause)
+ reg &= ~GM_RXCR_MCF_ENA;
+ else {
+ reg |= GM_RXCR_MCF_ENA;
+
+ if (rx_pause)
+ sky2_add_filter(filter, pause_mc_addr);
+
+ netdev_for_each_mc_addr(ha, dev)
+ sky2_add_filter(filter, ha->addr);
+ }
+
+ gma_write16(hw, port, GM_MC_ADDR_H1,
+ (u16) filter[0] | ((u16) filter[1] << 8));
+ gma_write16(hw, port, GM_MC_ADDR_H2,
+ (u16) filter[2] | ((u16) filter[3] << 8));
+ gma_write16(hw, port, GM_MC_ADDR_H3,
+ (u16) filter[4] | ((u16) filter[5] << 8));
+ gma_write16(hw, port, GM_MC_ADDR_H4,
+ (u16) filter[6] | ((u16) filter[7] << 8));
+
+ gma_write16(hw, port, GM_RX_CTRL, reg);
+}
+
+static struct rtnl_link_stats64 *sky2_get_stats(struct net_device *dev,
+ struct rtnl_link_stats64 *stats)
+{
+ struct sky2_port *sky2 = netdev_priv(dev);
+ struct sky2_hw *hw = sky2->hw;
+ unsigned port = sky2->port;
+ unsigned int start;
+ u64 _bytes, _packets;
+
+ do {
+ start = u64_stats_fetch_begin_irq(&sky2->rx_stats.syncp);
+ _bytes = sky2->rx_stats.bytes;
+ _packets = sky2->rx_stats.packets;
+ } while (u64_stats_fetch_retry_irq(&sky2->rx_stats.syncp, start));
+
+ stats->rx_packets = _packets;
+ stats->rx_bytes = _bytes;
+
+ do {
+ start = u64_stats_fetch_begin_irq(&sky2->tx_stats.syncp);
+ _bytes = sky2->tx_stats.bytes;
+ _packets = sky2->tx_stats.packets;
+ } while (u64_stats_fetch_retry_irq(&sky2->tx_stats.syncp, start));
+
+ stats->tx_packets = _packets;
+ stats->tx_bytes = _bytes;
+
+ stats->multicast = get_stats32(hw, port, GM_RXF_MC_OK)
+ + get_stats32(hw, port, GM_RXF_BC_OK);
+
+ stats->collisions = get_stats32(hw, port, GM_TXF_COL);
+
+ stats->rx_length_errors = get_stats32(hw, port, GM_RXF_LNG_ERR);
+ stats->rx_crc_errors = get_stats32(hw, port, GM_RXF_FCS_ERR);
+ stats->rx_frame_errors = get_stats32(hw, port, GM_RXF_SHT)
+ + get_stats32(hw, port, GM_RXE_FRAG);
+ stats->rx_over_errors = get_stats32(hw, port, GM_RXE_FIFO_OV);
+
+ stats->rx_dropped = dev->stats.rx_dropped;
+ stats->rx_fifo_errors = dev->stats.rx_fifo_errors;
+ stats->tx_fifo_errors = dev->stats.tx_fifo_errors;
+
+ return stats;
+}
+
+/* Can have one global because blinking is controlled by
+ * ethtool and that is always under RTNL mutex
+ */
+static void sky2_led(struct sky2_port *sky2, enum led_mode mode)
+{
+ struct sky2_hw *hw = sky2->hw;
+ unsigned port = sky2->port;
+
+ spin_lock_bh(&sky2->phy_lock);
+ if (hw->chip_id == CHIP_ID_YUKON_EC_U ||
+ hw->chip_id == CHIP_ID_YUKON_EX ||
+ hw->chip_id == CHIP_ID_YUKON_SUPR) {
+ u16 pg;
+ pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR);
+ gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 3);
+
+ switch (mode) {
+ case MO_LED_OFF:
+ gm_phy_write(hw, port, PHY_MARV_PHY_CTRL,
+ PHY_M_LEDC_LOS_CTRL(8) |
+ PHY_M_LEDC_INIT_CTRL(8) |
+ PHY_M_LEDC_STA1_CTRL(8) |
+ PHY_M_LEDC_STA0_CTRL(8));
+ break;
+ case MO_LED_ON:
+ gm_phy_write(hw, port, PHY_MARV_PHY_CTRL,
+ PHY_M_LEDC_LOS_CTRL(9) |
+ PHY_M_LEDC_INIT_CTRL(9) |
+ PHY_M_LEDC_STA1_CTRL(9) |
+ PHY_M_LEDC_STA0_CTRL(9));
+ break;
+ case MO_LED_BLINK:
+ gm_phy_write(hw, port, PHY_MARV_PHY_CTRL,
+ PHY_M_LEDC_LOS_CTRL(0xa) |
+ PHY_M_LEDC_INIT_CTRL(0xa) |
+ PHY_M_LEDC_STA1_CTRL(0xa) |
+ PHY_M_LEDC_STA0_CTRL(0xa));
+ break;
+ case MO_LED_NORM:
+ gm_phy_write(hw, port, PHY_MARV_PHY_CTRL,
+ PHY_M_LEDC_LOS_CTRL(1) |
+ PHY_M_LEDC_INIT_CTRL(8) |
+ PHY_M_LEDC_STA1_CTRL(7) |
+ PHY_M_LEDC_STA0_CTRL(7));
+ }
+
+ gm_phy_write(hw, port, PHY_MARV_EXT_ADR, pg);
+ } else
+ gm_phy_write(hw, port, PHY_MARV_LED_OVER,
+ PHY_M_LED_MO_DUP(mode) |
+ PHY_M_LED_MO_10(mode) |
+ PHY_M_LED_MO_100(mode) |
+ PHY_M_LED_MO_1000(mode) |
+ PHY_M_LED_MO_RX(mode) |
+ PHY_M_LED_MO_TX(mode));
+
+ spin_unlock_bh(&sky2->phy_lock);
+}
+
+/* blink LED's for finding board */
+static int sky2_set_phys_id(struct net_device *dev,
+ enum ethtool_phys_id_state state)
+{
+ struct sky2_port *sky2 = netdev_priv(dev);
+
+ switch (state) {
+ case ETHTOOL_ID_ACTIVE:
+ return 1; /* cycle on/off once per second */
+ case ETHTOOL_ID_INACTIVE:
+ sky2_led(sky2, MO_LED_NORM);
+ break;
+ case ETHTOOL_ID_ON:
+ sky2_led(sky2, MO_LED_ON);
+ break;
+ case ETHTOOL_ID_OFF:
+ sky2_led(sky2, MO_LED_OFF);
+ break;
+ }
+
+ return 0;
+}
+
+static void sky2_get_pauseparam(struct net_device *dev,
+ struct ethtool_pauseparam *ecmd)
+{
+ struct sky2_port *sky2 = netdev_priv(dev);
+
+ switch (sky2->flow_mode) {
+ case FC_NONE:
+ ecmd->tx_pause = ecmd->rx_pause = 0;
+ break;
+ case FC_TX:
+ ecmd->tx_pause = 1, ecmd->rx_pause = 0;
+ break;
+ case FC_RX:
+ ecmd->tx_pause = 0, ecmd->rx_pause = 1;
+ break;
+ case FC_BOTH:
+ ecmd->tx_pause = ecmd->rx_pause = 1;
+ }
+
+ ecmd->autoneg = (sky2->flags & SKY2_FLAG_AUTO_PAUSE)
+ ? AUTONEG_ENABLE : AUTONEG_DISABLE;
+}
+
+static int sky2_set_pauseparam(struct net_device *dev,
+ struct ethtool_pauseparam *ecmd)
+{
+ struct sky2_port *sky2 = netdev_priv(dev);
+
+ if (ecmd->autoneg == AUTONEG_ENABLE)
+ sky2->flags |= SKY2_FLAG_AUTO_PAUSE;
+ else
+ sky2->flags &= ~SKY2_FLAG_AUTO_PAUSE;
+
+ sky2->flow_mode = sky2_flow(ecmd->rx_pause, ecmd->tx_pause);
+
+ if (netif_running(dev))
+ sky2_phy_reinit(sky2);
+
+ return 0;
+}
+
+static int sky2_get_coalesce(struct net_device *dev,
+ struct ethtool_coalesce *ecmd)
+{
+ struct sky2_port *sky2 = netdev_priv(dev);
+ struct sky2_hw *hw = sky2->hw;
+
+ if (sky2_read8(hw, STAT_TX_TIMER_CTRL) == TIM_STOP)
+ ecmd->tx_coalesce_usecs = 0;
+ else {
+ u32 clks = sky2_read32(hw, STAT_TX_TIMER_INI);
+ ecmd->tx_coalesce_usecs = sky2_clk2us(hw, clks);
+ }
+ ecmd->tx_max_coalesced_frames = sky2_read16(hw, STAT_TX_IDX_TH);
+
+ if (sky2_read8(hw, STAT_LEV_TIMER_CTRL) == TIM_STOP)
+ ecmd->rx_coalesce_usecs = 0;
+ else {
+ u32 clks = sky2_read32(hw, STAT_LEV_TIMER_INI);
+ ecmd->rx_coalesce_usecs = sky2_clk2us(hw, clks);
+ }
+ ecmd->rx_max_coalesced_frames = sky2_read8(hw, STAT_FIFO_WM);
+
+ if (sky2_read8(hw, STAT_ISR_TIMER_CTRL) == TIM_STOP)
+ ecmd->rx_coalesce_usecs_irq = 0;
+ else {
+ u32 clks = sky2_read32(hw, STAT_ISR_TIMER_INI);
+ ecmd->rx_coalesce_usecs_irq = sky2_clk2us(hw, clks);
+ }
+
+ ecmd->rx_max_coalesced_frames_irq = sky2_read8(hw, STAT_FIFO_ISR_WM);
+
+ return 0;
+}
+
+/* Note: this affect both ports */
+static int sky2_set_coalesce(struct net_device *dev,
+ struct ethtool_coalesce *ecmd)
+{
+ struct sky2_port *sky2 = netdev_priv(dev);
+ struct sky2_hw *hw = sky2->hw;
+ const u32 tmax = sky2_clk2us(hw, 0x0ffffff);
+
+ if (ecmd->tx_coalesce_usecs > tmax ||
+ ecmd->rx_coalesce_usecs > tmax ||
+ ecmd->rx_coalesce_usecs_irq > tmax)
+ return -EINVAL;
+
+ if (ecmd->tx_max_coalesced_frames >= sky2->tx_ring_size-1)
+ return -EINVAL;
+ if (ecmd->rx_max_coalesced_frames > RX_MAX_PENDING)
+ return -EINVAL;
+ if (ecmd->rx_max_coalesced_frames_irq > RX_MAX_PENDING)
+ return -EINVAL;
+
+ if (ecmd->tx_coalesce_usecs == 0)
+ sky2_write8(hw, STAT_TX_TIMER_CTRL, TIM_STOP);
+ else {
+ sky2_write32(hw, STAT_TX_TIMER_INI,
+ sky2_us2clk(hw, ecmd->tx_coalesce_usecs));
+ sky2_write8(hw, STAT_TX_TIMER_CTRL, TIM_START);
+ }
+ sky2_write16(hw, STAT_TX_IDX_TH, ecmd->tx_max_coalesced_frames);
+
+ if (ecmd->rx_coalesce_usecs == 0)
+ sky2_write8(hw, STAT_LEV_TIMER_CTRL, TIM_STOP);
+ else {
+ sky2_write32(hw, STAT_LEV_TIMER_INI,
+ sky2_us2clk(hw, ecmd->rx_coalesce_usecs));
+ sky2_write8(hw, STAT_LEV_TIMER_CTRL, TIM_START);
+ }
+ sky2_write8(hw, STAT_FIFO_WM, ecmd->rx_max_coalesced_frames);
+
+ if (ecmd->rx_coalesce_usecs_irq == 0)
+ sky2_write8(hw, STAT_ISR_TIMER_CTRL, TIM_STOP);
+ else {
+ sky2_write32(hw, STAT_ISR_TIMER_INI,
+ sky2_us2clk(hw, ecmd->rx_coalesce_usecs_irq));
+ sky2_write8(hw, STAT_ISR_TIMER_CTRL, TIM_START);
+ }
+ sky2_write8(hw, STAT_FIFO_ISR_WM, ecmd->rx_max_coalesced_frames_irq);
+ return 0;
+}
+
+/*
+ * Hardware is limited to min of 128 and max of 2048 for ring size
+ * and rounded up to next power of two
+ * to avoid division in modulus calclation
+ */
+static unsigned long roundup_ring_size(unsigned long pending)
+{
+ return max(128ul, roundup_pow_of_two(pending+1));
+}
+
+static void sky2_get_ringparam(struct net_device *dev,
+ struct ethtool_ringparam *ering)
+{
+ struct sky2_port *sky2 = netdev_priv(dev);
+
+ ering->rx_max_pending = RX_MAX_PENDING;
+ ering->tx_max_pending = TX_MAX_PENDING;
+
+ ering->rx_pending = sky2->rx_pending;
+ ering->tx_pending = sky2->tx_pending;
+}
+
+static int sky2_set_ringparam(struct net_device *dev,
+ struct ethtool_ringparam *ering)
+{
+ struct sky2_port *sky2 = netdev_priv(dev);
+
+ if (ering->rx_pending > RX_MAX_PENDING ||
+ ering->rx_pending < 8 ||
+ ering->tx_pending < TX_MIN_PENDING ||
+ ering->tx_pending > TX_MAX_PENDING)
+ return -EINVAL;
+
+ sky2_detach(dev);
+
+ sky2->rx_pending = ering->rx_pending;
+ sky2->tx_pending = ering->tx_pending;
+ sky2->tx_ring_size = roundup_ring_size(sky2->tx_pending);
+
+ return sky2_reattach(dev);
+}
+
+static int sky2_get_regs_len(struct net_device *dev)
+{
+ return 0x4000;
+}
+
+static int sky2_reg_access_ok(struct sky2_hw *hw, unsigned int b)
+{
+ /* This complicated switch statement is to make sure and
+ * only access regions that are unreserved.
+ * Some blocks are only valid on dual port cards.
+ */
+ switch (b) {
+ /* second port */
+ case 5: /* Tx Arbiter 2 */
+ case 9: /* RX2 */
+ case 14 ... 15: /* TX2 */
+ case 17: case 19: /* Ram Buffer 2 */
+ case 22 ... 23: /* Tx Ram Buffer 2 */
+ case 25: /* Rx MAC Fifo 1 */
+ case 27: /* Tx MAC Fifo 2 */
+ case 31: /* GPHY 2 */
+ case 40 ... 47: /* Pattern Ram 2 */
+ case 52: case 54: /* TCP Segmentation 2 */
+ case 112 ... 116: /* GMAC 2 */
+ return hw->ports > 1;
+
+ case 0: /* Control */
+ case 2: /* Mac address */
+ case 4: /* Tx Arbiter 1 */
+ case 7: /* PCI express reg */
+ case 8: /* RX1 */
+ case 12 ... 13: /* TX1 */
+ case 16: case 18:/* Rx Ram Buffer 1 */
+ case 20 ... 21: /* Tx Ram Buffer 1 */
+ case 24: /* Rx MAC Fifo 1 */
+ case 26: /* Tx MAC Fifo 1 */
+ case 28 ... 29: /* Descriptor and status unit */
+ case 30: /* GPHY 1*/
+ case 32 ... 39: /* Pattern Ram 1 */
+ case 48: case 50: /* TCP Segmentation 1 */
+ case 56 ... 60: /* PCI space */
+ case 80 ... 84: /* GMAC 1 */
+ return 1;
+
+ default:
+ return 0;
+ }
+}
+
+/*
+ * Returns copy of control register region
+ * Note: ethtool_get_regs always provides full size (16k) buffer
+ */
+static void sky2_get_regs(struct net_device *dev, struct ethtool_regs *regs,
+ void *p)
+{
+ const struct sky2_port *sky2 = netdev_priv(dev);
+ const void __iomem *io = sky2->hw->regs;
+ unsigned int b;
+
+ regs->version = 1;
+
+ for (b = 0; b < 128; b++) {
+ /* skip poisonous diagnostic ram region in block 3 */
+ if (b == 3)
+ memcpy_fromio(p + 0x10, io + 0x10, 128 - 0x10);
+ else if (sky2_reg_access_ok(sky2->hw, b))
+ memcpy_fromio(p, io, 128);
+ else
+ memset(p, 0, 128);
+
+ p += 128;
+ io += 128;
+ }
+}
+
+static int sky2_get_eeprom_len(struct net_device *dev)
+{
+ struct sky2_port *sky2 = netdev_priv(dev);
+ struct sky2_hw *hw = sky2->hw;
+ u16 reg2;
+
+ reg2 = sky2_pci_read16(hw, PCI_DEV_REG2);
+ return 1 << ( ((reg2 & PCI_VPD_ROM_SZ) >> 14) + 8);
+}
+
+static int sky2_vpd_wait(const struct sky2_hw *hw, int cap, u16 busy)
+{
+ unsigned long start = jiffies;
+
+ while ( (sky2_pci_read16(hw, cap + PCI_VPD_ADDR) & PCI_VPD_ADDR_F) == busy) {
+ /* Can take up to 10.6 ms for write */
+ if (time_after(jiffies, start + HZ/4)) {
+ dev_err(&hw->pdev->dev, "VPD cycle timed out\n");
+ return -ETIMEDOUT;
+ }
+ mdelay(1);
+ }
+
+ return 0;
+}
+
+static int sky2_vpd_read(struct sky2_hw *hw, int cap, void *data,
+ u16 offset, size_t length)
+{
+ int rc = 0;
+
+ while (length > 0) {
+ u32 val;
+
+ sky2_pci_write16(hw, cap + PCI_VPD_ADDR, offset);
+ rc = sky2_vpd_wait(hw, cap, 0);
+ if (rc)
+ break;
+
+ val = sky2_pci_read32(hw, cap + PCI_VPD_DATA);
+
+ memcpy(data, &val, min(sizeof(val), length));
+ offset += sizeof(u32);
+ data += sizeof(u32);
+ length -= sizeof(u32);
+ }
+
+ return rc;
+}
+
+static int sky2_vpd_write(struct sky2_hw *hw, int cap, const void *data,
+ u16 offset, unsigned int length)
+{
+ unsigned int i;
+ int rc = 0;
+
+ for (i = 0; i < length; i += sizeof(u32)) {
+ u32 val = *(u32 *)(data + i);
+
+ sky2_pci_write32(hw, cap + PCI_VPD_DATA, val);
+ sky2_pci_write32(hw, cap + PCI_VPD_ADDR, offset | PCI_VPD_ADDR_F);
+
+ rc = sky2_vpd_wait(hw, cap, PCI_VPD_ADDR_F);
+ if (rc)
+ break;
+ }
+ return rc;
+}
+
+static int sky2_get_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom,
+ u8 *data)
+{
+ struct sky2_port *sky2 = netdev_priv(dev);
+ int cap = pci_find_capability(sky2->hw->pdev, PCI_CAP_ID_VPD);
+
+ if (!cap)
+ return -EINVAL;
+
+ eeprom->magic = SKY2_EEPROM_MAGIC;
+
+ return sky2_vpd_read(sky2->hw, cap, data, eeprom->offset, eeprom->len);
+}
+
+static int sky2_set_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom,
+ u8 *data)
+{
+ struct sky2_port *sky2 = netdev_priv(dev);
+ int cap = pci_find_capability(sky2->hw->pdev, PCI_CAP_ID_VPD);
+
+ if (!cap)
+ return -EINVAL;
+
+ if (eeprom->magic != SKY2_EEPROM_MAGIC)
+ return -EINVAL;
+
+ /* Partial writes not supported */
+ if ((eeprom->offset & 3) || (eeprom->len & 3))
+ return -EINVAL;
+
+ return sky2_vpd_write(sky2->hw, cap, data, eeprom->offset, eeprom->len);
+}
+
+static netdev_features_t sky2_fix_features(struct net_device *dev,
+ netdev_features_t features)
+{
+ const struct sky2_port *sky2 = netdev_priv(dev);
+ const struct sky2_hw *hw = sky2->hw;
+
+ /* In order to do Jumbo packets on these chips, need to turn off the
+ * transmit store/forward. Therefore checksum offload won't work.
+ */
+ if (dev->mtu > ETH_DATA_LEN && hw->chip_id == CHIP_ID_YUKON_EC_U) {
+ netdev_info(dev, "checksum offload not possible with jumbo frames\n");
+ features &= ~(NETIF_F_TSO|NETIF_F_SG|NETIF_F_ALL_CSUM);
+ }
+
+ /* Some hardware requires receive checksum for RSS to work. */
+ if ( (features & NETIF_F_RXHASH) &&
+ !(features & NETIF_F_RXCSUM) &&
+ (sky2->hw->flags & SKY2_HW_RSS_CHKSUM)) {
+ netdev_info(dev, "receive hashing forces receive checksum\n");
+ features |= NETIF_F_RXCSUM;
+ }
+
+ return features;
+}
+
+static int sky2_set_features(struct net_device *dev, netdev_features_t features)
+{
+ struct sky2_port *sky2 = netdev_priv(dev);
+ netdev_features_t changed = dev->features ^ features;
+
+ if ((changed & NETIF_F_RXCSUM) &&
+ !(sky2->hw->flags & SKY2_HW_NEW_LE)) {
+ sky2_write32(sky2->hw,
+ Q_ADDR(rxqaddr[sky2->port], Q_CSR),
+ (features & NETIF_F_RXCSUM)
+ ? BMU_ENA_RX_CHKSUM : BMU_DIS_RX_CHKSUM);
+ }
+
+ if (changed & NETIF_F_RXHASH)
+ rx_set_rss(dev, features);
+
+ if (changed & (NETIF_F_HW_VLAN_CTAG_TX|NETIF_F_HW_VLAN_CTAG_RX))
+ sky2_vlan_mode(dev, features);
+
+ return 0;
+}
+
+static const struct ethtool_ops sky2_ethtool_ops = {
+ .get_settings = sky2_get_settings,
+ .set_settings = sky2_set_settings,
+ .get_drvinfo = sky2_get_drvinfo,
+ .get_wol = sky2_get_wol,
+ .set_wol = sky2_set_wol,
+ .get_msglevel = sky2_get_msglevel,
+ .set_msglevel = sky2_set_msglevel,
+ .nway_reset = sky2_nway_reset,
+ .get_regs_len = sky2_get_regs_len,
+ .get_regs = sky2_get_regs,
+ .get_link = ethtool_op_get_link,
+ .get_eeprom_len = sky2_get_eeprom_len,
+ .get_eeprom = sky2_get_eeprom,
+ .set_eeprom = sky2_set_eeprom,
+ .get_strings = sky2_get_strings,
+ .get_coalesce = sky2_get_coalesce,
+ .set_coalesce = sky2_set_coalesce,
+ .get_ringparam = sky2_get_ringparam,
+ .set_ringparam = sky2_set_ringparam,
+ .get_pauseparam = sky2_get_pauseparam,
+ .set_pauseparam = sky2_set_pauseparam,
+ .set_phys_id = sky2_set_phys_id,
+ .get_sset_count = sky2_get_sset_count,
+ .get_ethtool_stats = sky2_get_ethtool_stats,
+};
+
+#ifdef CONFIG_SKY2_DEBUG
+
+static struct dentry *sky2_debug;
+
+
+/*
+ * Read and parse the first part of Vital Product Data
+ */
+#define VPD_SIZE 128
+#define VPD_MAGIC 0x82
+
+static const struct vpd_tag {
+ char tag[2];
+ char *label;
+} vpd_tags[] = {
+ { "PN", "Part Number" },
+ { "EC", "Engineering Level" },
+ { "MN", "Manufacturer" },
+ { "SN", "Serial Number" },
+ { "YA", "Asset Tag" },
+ { "VL", "First Error Log Message" },
+ { "VF", "Second Error Log Message" },
+ { "VB", "Boot Agent ROM Configuration" },
+ { "VE", "EFI UNDI Configuration" },
+};
+
+static void sky2_show_vpd(struct seq_file *seq, struct sky2_hw *hw)
+{
+ size_t vpd_size;
+ loff_t offs;
+ u8 len;
+ unsigned char *buf;
+ u16 reg2;
+
+ reg2 = sky2_pci_read16(hw, PCI_DEV_REG2);
+ vpd_size = 1 << ( ((reg2 & PCI_VPD_ROM_SZ) >> 14) + 8);
+
+ seq_printf(seq, "%s Product Data\n", pci_name(hw->pdev));
+ buf = kmalloc(vpd_size, GFP_KERNEL);
+ if (!buf) {
+ seq_puts(seq, "no memory!\n");
+ return;
+ }
+
+ if (pci_read_vpd(hw->pdev, 0, vpd_size, buf) < 0) {
+ seq_puts(seq, "VPD read failed\n");
+ goto out;
+ }
+
+ if (buf[0] != VPD_MAGIC) {
+ seq_printf(seq, "VPD tag mismatch: %#x\n", buf[0]);
+ goto out;
+ }
+ len = buf[1];
+ if (len == 0 || len > vpd_size - 4) {
+ seq_printf(seq, "Invalid id length: %d\n", len);
+ goto out;
+ }
+
+ seq_printf(seq, "%.*s\n", len, buf + 3);
+ offs = len + 3;
+
+ while (offs < vpd_size - 4) {
+ int i;
+
+ if (!memcmp("RW", buf + offs, 2)) /* end marker */
+ break;
+ len = buf[offs + 2];
+ if (offs + len + 3 >= vpd_size)
+ break;
+
+ for (i = 0; i < ARRAY_SIZE(vpd_tags); i++) {
+ if (!memcmp(vpd_tags[i].tag, buf + offs, 2)) {
+ seq_printf(seq, " %s: %.*s\n",
+ vpd_tags[i].label, len, buf + offs + 3);
+ break;
+ }
+ }
+ offs += len + 3;
+ }
+out:
+ kfree(buf);
+}
+
+static int sky2_debug_show(struct seq_file *seq, void *v)
+{
+ struct net_device *dev = seq->private;
+ const struct sky2_port *sky2 = netdev_priv(dev);
+ struct sky2_hw *hw = sky2->hw;
+ unsigned port = sky2->port;
+ unsigned idx, last;
+ int sop;
+
+ sky2_show_vpd(seq, hw);
+
+ seq_printf(seq, "\nIRQ src=%x mask=%x control=%x\n",
+ sky2_read32(hw, B0_ISRC),
+ sky2_read32(hw, B0_IMSK),
+ sky2_read32(hw, B0_Y2_SP_ICR));
+
+ if (!netif_running(dev)) {
+ seq_printf(seq, "network not running\n");
+ return 0;
+ }
+
+ napi_disable(&hw->napi);
+ last = sky2_read16(hw, STAT_PUT_IDX);
+
+ seq_printf(seq, "Status ring %u\n", hw->st_size);
+ if (hw->st_idx == last)
+ seq_puts(seq, "Status ring (empty)\n");
+ else {
+ seq_puts(seq, "Status ring\n");
+ for (idx = hw->st_idx; idx != last && idx < hw->st_size;
+ idx = RING_NEXT(idx, hw->st_size)) {
+ const struct sky2_status_le *le = hw->st_le + idx;
+ seq_printf(seq, "[%d] %#x %d %#x\n",
+ idx, le->opcode, le->length, le->status);
+ }
+ seq_puts(seq, "\n");
+ }
+
+ seq_printf(seq, "Tx ring pending=%u...%u report=%d done=%d\n",
+ sky2->tx_cons, sky2->tx_prod,
+ sky2_read16(hw, port == 0 ? STAT_TXA1_RIDX : STAT_TXA2_RIDX),
+ sky2_read16(hw, Q_ADDR(txqaddr[port], Q_DONE)));
+
+ /* Dump contents of tx ring */
+ sop = 1;
+ for (idx = sky2->tx_next; idx != sky2->tx_prod && idx < sky2->tx_ring_size;
+ idx = RING_NEXT(idx, sky2->tx_ring_size)) {
+ const struct sky2_tx_le *le = sky2->tx_le + idx;
+ u32 a = le32_to_cpu(le->addr);
+
+ if (sop)
+ seq_printf(seq, "%u:", idx);
+ sop = 0;
+
+ switch (le->opcode & ~HW_OWNER) {
+ case OP_ADDR64:
+ seq_printf(seq, " %#x:", a);
+ break;
+ case OP_LRGLEN:
+ seq_printf(seq, " mtu=%d", a);
+ break;
+ case OP_VLAN:
+ seq_printf(seq, " vlan=%d", be16_to_cpu(le->length));
+ break;
+ case OP_TCPLISW:
+ seq_printf(seq, " csum=%#x", a);
+ break;
+ case OP_LARGESEND:
+ seq_printf(seq, " tso=%#x(%d)", a, le16_to_cpu(le->length));
+ break;
+ case OP_PACKET:
+ seq_printf(seq, " %#x(%d)", a, le16_to_cpu(le->length));
+ break;
+ case OP_BUFFER:
+ seq_printf(seq, " frag=%#x(%d)", a, le16_to_cpu(le->length));
+ break;
+ default:
+ seq_printf(seq, " op=%#x,%#x(%d)", le->opcode,
+ a, le16_to_cpu(le->length));
+ }
+
+ if (le->ctrl & EOP) {
+ seq_putc(seq, '\n');
+ sop = 1;
+ }
+ }
+
+ seq_printf(seq, "\nRx ring hw get=%d put=%d last=%d\n",
+ sky2_read16(hw, Y2_QADDR(rxqaddr[port], PREF_UNIT_GET_IDX)),
+ sky2_read16(hw, Y2_QADDR(rxqaddr[port], PREF_UNIT_PUT_IDX)),
+ sky2_read16(hw, Y2_QADDR(rxqaddr[port], PREF_UNIT_LAST_IDX)));
+
+ sky2_read32(hw, B0_Y2_SP_LISR);
+ napi_enable(&hw->napi);
+ return 0;
+}
+
+static int sky2_debug_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, sky2_debug_show, inode->i_private);
+}
+
+static const struct file_operations sky2_debug_fops = {
+ .owner = THIS_MODULE,
+ .open = sky2_debug_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+/*
+ * Use network device events to create/remove/rename
+ * debugfs file entries
+ */
+static int sky2_device_event(struct notifier_block *unused,
+ unsigned long event, void *ptr)
+{
+ struct net_device *dev = netdev_notifier_info_to_dev(ptr);
+ struct sky2_port *sky2 = netdev_priv(dev);
+
+ if (dev->netdev_ops->ndo_open != sky2_open || !sky2_debug)
+ return NOTIFY_DONE;
+
+ switch (event) {
+ case NETDEV_CHANGENAME:
+ if (sky2->debugfs) {
+ sky2->debugfs = debugfs_rename(sky2_debug, sky2->debugfs,
+ sky2_debug, dev->name);
+ }
+ break;
+
+ case NETDEV_GOING_DOWN:
+ if (sky2->debugfs) {
+ netdev_printk(KERN_DEBUG, dev, "remove debugfs\n");
+ debugfs_remove(sky2->debugfs);
+ sky2->debugfs = NULL;
+ }
+ break;
+
+ case NETDEV_UP:
+ sky2->debugfs = debugfs_create_file(dev->name, S_IRUGO,
+ sky2_debug, dev,
+ &sky2_debug_fops);
+ if (IS_ERR(sky2->debugfs))
+ sky2->debugfs = NULL;
+ }
+
+ return NOTIFY_DONE;
+}
+
+static struct notifier_block sky2_notifier = {
+ .notifier_call = sky2_device_event,
+};
+
+
+static __init void sky2_debug_init(void)
+{
+ struct dentry *ent;
+
+ ent = debugfs_create_dir("sky2", NULL);
+ if (!ent || IS_ERR(ent))
+ return;
+
+ sky2_debug = ent;
+ register_netdevice_notifier(&sky2_notifier);
+}
+
+static __exit void sky2_debug_cleanup(void)
+{
+ if (sky2_debug) {
+ unregister_netdevice_notifier(&sky2_notifier);
+ debugfs_remove(sky2_debug);
+ sky2_debug = NULL;
+ }
+}
+
+#else
+#define sky2_debug_init()
+#define sky2_debug_cleanup()
+#endif
+
+/* Two copies of network device operations to handle special case of
+ not allowing netpoll on second port */
+static const struct net_device_ops sky2_netdev_ops[2] = {
+ {
+ .ndo_open = sky2_open,
+ .ndo_stop = sky2_close,
+ .ndo_start_xmit = sky2_xmit_frame,
+ .ndo_do_ioctl = sky2_ioctl,
+ .ndo_validate_addr = eth_validate_addr,
+ .ndo_set_mac_address = sky2_set_mac_address,
+ .ndo_set_rx_mode = sky2_set_multicast,
+ .ndo_change_mtu = sky2_change_mtu,
+ .ndo_fix_features = sky2_fix_features,
+ .ndo_set_features = sky2_set_features,
+ .ndo_tx_timeout = sky2_tx_timeout,
+ .ndo_get_stats64 = sky2_get_stats,
+#ifdef CONFIG_NET_POLL_CONTROLLER
+ .ndo_poll_controller = sky2_netpoll,
+#endif
+ },
+ {
+ .ndo_open = sky2_open,
+ .ndo_stop = sky2_close,
+ .ndo_start_xmit = sky2_xmit_frame,
+ .ndo_do_ioctl = sky2_ioctl,
+ .ndo_validate_addr = eth_validate_addr,
+ .ndo_set_mac_address = sky2_set_mac_address,
+ .ndo_set_rx_mode = sky2_set_multicast,
+ .ndo_change_mtu = sky2_change_mtu,
+ .ndo_fix_features = sky2_fix_features,
+ .ndo_set_features = sky2_set_features,
+ .ndo_tx_timeout = sky2_tx_timeout,
+ .ndo_get_stats64 = sky2_get_stats,
+ },
+};
+
+/* Initialize network device */
+static struct net_device *sky2_init_netdev(struct sky2_hw *hw, unsigned port,
+ int highmem, int wol)
+{
+ struct sky2_port *sky2;
+ struct net_device *dev = alloc_etherdev(sizeof(*sky2));
+ const void *iap;
+
+ if (!dev)
+ return NULL;
+
+ SET_NETDEV_DEV(dev, &hw->pdev->dev);
+ dev->irq = hw->pdev->irq;
+ dev->ethtool_ops = &sky2_ethtool_ops;
+ dev->watchdog_timeo = TX_WATCHDOG;
+ dev->netdev_ops = &sky2_netdev_ops[port];
+
+ sky2 = netdev_priv(dev);
+ sky2->netdev = dev;
+ sky2->hw = hw;
+ sky2->msg_enable = netif_msg_init(debug, default_msg);
+
+ u64_stats_init(&sky2->tx_stats.syncp);
+ u64_stats_init(&sky2->rx_stats.syncp);
+
+ /* Auto speed and flow control */
+ sky2->flags = SKY2_FLAG_AUTO_SPEED | SKY2_FLAG_AUTO_PAUSE;
+ if (hw->chip_id != CHIP_ID_YUKON_XL)
+ dev->hw_features |= NETIF_F_RXCSUM;
+
+ sky2->flow_mode = FC_BOTH;
+
+ sky2->duplex = -1;
+ sky2->speed = -1;
+ sky2->advertising = sky2_supported_modes(hw);
+ sky2->wol = wol;
+
+ spin_lock_init(&sky2->phy_lock);
+
+ sky2->tx_pending = TX_DEF_PENDING;
+ sky2->tx_ring_size = roundup_ring_size(TX_DEF_PENDING);
+ sky2->rx_pending = RX_DEF_PENDING;
+
+ hw->dev[port] = dev;
+
+ sky2->port = port;
+
+ dev->hw_features |= NETIF_F_IP_CSUM | NETIF_F_SG | NETIF_F_TSO;
+
+ if (highmem)
+ dev->features |= NETIF_F_HIGHDMA;
+
+ /* Enable receive hashing unless hardware is known broken */
+ if (!(hw->flags & SKY2_HW_RSS_BROKEN))
+ dev->hw_features |= NETIF_F_RXHASH;
+
+ if (!(hw->flags & SKY2_HW_VLAN_BROKEN)) {
+ dev->hw_features |= NETIF_F_HW_VLAN_CTAG_TX |
+ NETIF_F_HW_VLAN_CTAG_RX;
+ dev->vlan_features |= SKY2_VLAN_OFFLOADS;
+ }
+
+ dev->features |= dev->hw_features;
+
+ /* try to get mac address in the following order:
+ * 1) from device tree data
+ * 2) from internal registers set by bootloader
+ */
+ iap = of_get_mac_address(hw->pdev->dev.of_node);
+ if (iap)
+ memcpy(dev->dev_addr, iap, ETH_ALEN);
+ else
+ memcpy_fromio(dev->dev_addr, hw->regs + B2_MAC_1 + port * 8,
+ ETH_ALEN);
+
+ return dev;
+}
+
+static void sky2_show_addr(struct net_device *dev)
+{
+ const struct sky2_port *sky2 = netdev_priv(dev);
+
+ netif_info(sky2, probe, dev, "addr %pM\n", dev->dev_addr);
+}
+
+/* Handle software interrupt used during MSI test */
+static irqreturn_t sky2_test_intr(int irq, void *dev_id)
+{
+ struct sky2_hw *hw = dev_id;
+ u32 status = sky2_read32(hw, B0_Y2_SP_ISRC2);
+
+ if (status == 0)
+ return IRQ_NONE;
+
+ if (status & Y2_IS_IRQ_SW) {
+ hw->flags |= SKY2_HW_USE_MSI;
+ wake_up(&hw->msi_wait);
+ sky2_write8(hw, B0_CTST, CS_CL_SW_IRQ);
+ }
+ sky2_write32(hw, B0_Y2_SP_ICR, 2);
+
+ return IRQ_HANDLED;
+}
+
+/* Test interrupt path by forcing a a software IRQ */
+static int sky2_test_msi(struct sky2_hw *hw)
+{
+ struct pci_dev *pdev = hw->pdev;
+ int err;
+
+ init_waitqueue_head(&hw->msi_wait);
+
+ err = request_irq(pdev->irq, sky2_test_intr, 0, DRV_NAME, hw);
+ if (err) {
+ dev_err(&pdev->dev, "cannot assign irq %d\n", pdev->irq);
+ return err;
+ }
+
+ sky2_write32(hw, B0_IMSK, Y2_IS_IRQ_SW);
+
+ sky2_write8(hw, B0_CTST, CS_ST_SW_IRQ);
+ sky2_read8(hw, B0_CTST);
+
+ wait_event_timeout(hw->msi_wait, (hw->flags & SKY2_HW_USE_MSI), HZ/10);
+
+ if (!(hw->flags & SKY2_HW_USE_MSI)) {
+ /* MSI test failed, go back to INTx mode */
+ dev_info(&pdev->dev, "No interrupt generated using MSI, "
+ "switching to INTx mode.\n");
+
+ err = -EOPNOTSUPP;
+ sky2_write8(hw, B0_CTST, CS_CL_SW_IRQ);
+ }
+
+ sky2_write32(hw, B0_IMSK, 0);
+ sky2_read32(hw, B0_IMSK);
+
+ free_irq(pdev->irq, hw);
+
+ return err;
+}
+
+/* This driver supports yukon2 chipset only */
+static const char *sky2_name(u8 chipid, char *buf, int sz)
+{
+ const char *name[] = {
+ "XL", /* 0xb3 */
+ "EC Ultra", /* 0xb4 */
+ "Extreme", /* 0xb5 */
+ "EC", /* 0xb6 */
+ "FE", /* 0xb7 */
+ "FE+", /* 0xb8 */
+ "Supreme", /* 0xb9 */
+ "UL 2", /* 0xba */
+ "Unknown", /* 0xbb */
+ "Optima", /* 0xbc */
+ "OptimaEEE", /* 0xbd */
+ "Optima 2", /* 0xbe */
+ };
+
+ if (chipid >= CHIP_ID_YUKON_XL && chipid <= CHIP_ID_YUKON_OP_2)
+ strncpy(buf, name[chipid - CHIP_ID_YUKON_XL], sz);
+ else
+ snprintf(buf, sz, "(chip %#x)", chipid);
+ return buf;
+}
+
+static int sky2_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
+{
+ struct net_device *dev, *dev1;
+ struct sky2_hw *hw;
+ int err, using_dac = 0, wol_default;
+ u32 reg;
+ char buf1[16];
+
+ err = pci_enable_device(pdev);
+ if (err) {
+ dev_err(&pdev->dev, "cannot enable PCI device\n");
+ goto err_out;
+ }
+
+ /* Get configuration information
+ * Note: only regular PCI config access once to test for HW issues
+ * other PCI access through shared memory for speed and to
+ * avoid MMCONFIG problems.
+ */
+ err = pci_read_config_dword(pdev, PCI_DEV_REG2, &reg);
+ if (err) {
+ dev_err(&pdev->dev, "PCI read config failed\n");
+ goto err_out_disable;
+ }
+
+ if (~reg == 0) {
+ dev_err(&pdev->dev, "PCI configuration read error\n");
+ err = -EIO;
+ goto err_out_disable;
+ }
+
+ err = pci_request_regions(pdev, DRV_NAME);
+ if (err) {
+ dev_err(&pdev->dev, "cannot obtain PCI resources\n");
+ goto err_out_disable;
+ }
+
+ pci_set_master(pdev);
+
+ if (sizeof(dma_addr_t) > sizeof(u32) &&
+ !(err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64)))) {
+ using_dac = 1;
+ err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
+ if (err < 0) {
+ dev_err(&pdev->dev, "unable to obtain 64 bit DMA "
+ "for consistent allocations\n");
+ goto err_out_free_regions;
+ }
+ } else {
+ err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
+ if (err) {
+ dev_err(&pdev->dev, "no usable DMA configuration\n");
+ goto err_out_free_regions;
+ }
+ }
+
+
+#ifdef __BIG_ENDIAN
+ /* The sk98lin vendor driver uses hardware byte swapping but
+ * this driver uses software swapping.
+ */
+ reg &= ~PCI_REV_DESC;
+ err = pci_write_config_dword(pdev, PCI_DEV_REG2, reg);
+ if (err) {
+ dev_err(&pdev->dev, "PCI write config failed\n");
+ goto err_out_free_regions;
+ }
+#endif
+
+ wol_default = device_may_wakeup(&pdev->dev) ? WAKE_MAGIC : 0;
+
+ err = -ENOMEM;
+
+ hw = kzalloc(sizeof(*hw) + strlen(DRV_NAME "@pci:")
+ + strlen(pci_name(pdev)) + 1, GFP_KERNEL);
+ if (!hw)
+ goto err_out_free_regions;
+
+ hw->pdev = pdev;
+ sprintf(hw->irq_name, DRV_NAME "@pci:%s", pci_name(pdev));
+
+ hw->regs = ioremap_nocache(pci_resource_start(pdev, 0), 0x4000);
+ if (!hw->regs) {
+ dev_err(&pdev->dev, "cannot map device registers\n");
+ goto err_out_free_hw;
+ }
+
+ err = sky2_init(hw);
+ if (err)
+ goto err_out_iounmap;
+
+ /* ring for status responses */
+ hw->st_size = hw->ports * roundup_pow_of_two(3*RX_MAX_PENDING + TX_MAX_PENDING);
+ hw->st_le = pci_alloc_consistent(pdev, hw->st_size * sizeof(struct sky2_status_le),
+ &hw->st_dma);
+ if (!hw->st_le) {
+ err = -ENOMEM;
+ goto err_out_reset;
+ }
+
+ dev_info(&pdev->dev, "Yukon-2 %s chip revision %d\n",
+ sky2_name(hw->chip_id, buf1, sizeof(buf1)), hw->chip_rev);
+
+ sky2_reset(hw);
+
+ dev = sky2_init_netdev(hw, 0, using_dac, wol_default);
+ if (!dev) {
+ err = -ENOMEM;
+ goto err_out_free_pci;
+ }
+
+ if (!disable_msi && pci_enable_msi(pdev) == 0) {
+ err = sky2_test_msi(hw);
+ if (err) {
+ pci_disable_msi(pdev);
+ if (err != -EOPNOTSUPP)
+ goto err_out_free_netdev;
+ }
+ }
+
+ netif_napi_add(dev, &hw->napi, sky2_poll, NAPI_WEIGHT);
+
+ err = register_netdev(dev);
+ if (err) {
+ dev_err(&pdev->dev, "cannot register net device\n");
+ goto err_out_free_netdev;
+ }
+
+ netif_carrier_off(dev);
+
+ sky2_show_addr(dev);
+
+ if (hw->ports > 1) {
+ dev1 = sky2_init_netdev(hw, 1, using_dac, wol_default);
+ if (!dev1) {
+ err = -ENOMEM;
+ goto err_out_unregister;
+ }
+
+ err = register_netdev(dev1);
+ if (err) {
+ dev_err(&pdev->dev, "cannot register second net device\n");
+ goto err_out_free_dev1;
+ }
+
+ err = sky2_setup_irq(hw, hw->irq_name);
+ if (err)
+ goto err_out_unregister_dev1;
+
+ sky2_show_addr(dev1);
+ }
+
+ setup_timer(&hw->watchdog_timer, sky2_watchdog, (unsigned long) hw);
+ INIT_WORK(&hw->restart_work, sky2_restart);
+
+ pci_set_drvdata(pdev, hw);
+ pdev->d3_delay = 150;
+
+ return 0;
+
+err_out_unregister_dev1:
+ unregister_netdev(dev1);
+err_out_free_dev1:
+ free_netdev(dev1);
+err_out_unregister:
+ unregister_netdev(dev);
+err_out_free_netdev:
+ if (hw->flags & SKY2_HW_USE_MSI)
+ pci_disable_msi(pdev);
+ free_netdev(dev);
+err_out_free_pci:
+ pci_free_consistent(pdev, hw->st_size * sizeof(struct sky2_status_le),
+ hw->st_le, hw->st_dma);
+err_out_reset:
+ sky2_write8(hw, B0_CTST, CS_RST_SET);
+err_out_iounmap:
+ iounmap(hw->regs);
+err_out_free_hw:
+ kfree(hw);
+err_out_free_regions:
+ pci_release_regions(pdev);
+err_out_disable:
+ pci_disable_device(pdev);
+err_out:
+ return err;
+}
+
+static void sky2_remove(struct pci_dev *pdev)
+{
+ struct sky2_hw *hw = pci_get_drvdata(pdev);
+ int i;
+
+ if (!hw)
+ return;
+
+ del_timer_sync(&hw->watchdog_timer);
+ cancel_work_sync(&hw->restart_work);
+
+ for (i = hw->ports-1; i >= 0; --i)
+ unregister_netdev(hw->dev[i]);
+
+ sky2_write32(hw, B0_IMSK, 0);
+ sky2_read32(hw, B0_IMSK);
+
+ sky2_power_aux(hw);
+
+ sky2_write8(hw, B0_CTST, CS_RST_SET);
+ sky2_read8(hw, B0_CTST);
+
+ if (hw->ports > 1) {
+ napi_disable(&hw->napi);
+ free_irq(pdev->irq, hw);
+ }
+
+ if (hw->flags & SKY2_HW_USE_MSI)
+ pci_disable_msi(pdev);
+ pci_free_consistent(pdev, hw->st_size * sizeof(struct sky2_status_le),
+ hw->st_le, hw->st_dma);
+ pci_release_regions(pdev);
+ pci_disable_device(pdev);
+
+ for (i = hw->ports-1; i >= 0; --i)
+ free_netdev(hw->dev[i]);
+
+ iounmap(hw->regs);
+ kfree(hw);
+}
+
+static int sky2_suspend(struct device *dev)
+{
+ struct pci_dev *pdev = to_pci_dev(dev);
+ struct sky2_hw *hw = pci_get_drvdata(pdev);
+ int i;
+
+ if (!hw)
+ return 0;
+
+ del_timer_sync(&hw->watchdog_timer);
+ cancel_work_sync(&hw->restart_work);
+
+ rtnl_lock();
+
+ sky2_all_down(hw);
+ for (i = 0; i < hw->ports; i++) {
+ struct net_device *dev = hw->dev[i];
+ struct sky2_port *sky2 = netdev_priv(dev);
+
+ if (sky2->wol)
+ sky2_wol_init(sky2);
+ }
+
+ sky2_power_aux(hw);
+ rtnl_unlock();
+
+ return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int sky2_resume(struct device *dev)
+{
+ struct pci_dev *pdev = to_pci_dev(dev);
+ struct sky2_hw *hw = pci_get_drvdata(pdev);
+ int err;
+
+ if (!hw)
+ return 0;
+
+ /* Re-enable all clocks */
+ err = pci_write_config_dword(pdev, PCI_DEV_REG3, 0);
+ if (err) {
+ dev_err(&pdev->dev, "PCI write config failed\n");
+ goto out;
+ }
+
+ rtnl_lock();
+ sky2_reset(hw);
+ sky2_all_up(hw);
+ rtnl_unlock();
+
+ return 0;
+out:
+
+ dev_err(&pdev->dev, "resume failed (%d)\n", err);
+ pci_disable_device(pdev);
+ return err;
+}
+
+static SIMPLE_DEV_PM_OPS(sky2_pm_ops, sky2_suspend, sky2_resume);
+#define SKY2_PM_OPS (&sky2_pm_ops)
+
+#else
+
+#define SKY2_PM_OPS NULL
+#endif
+
+static void sky2_shutdown(struct pci_dev *pdev)
+{
+ sky2_suspend(&pdev->dev);
+ pci_wake_from_d3(pdev, device_may_wakeup(&pdev->dev));
+ pci_set_power_state(pdev, PCI_D3hot);
+}
+
+static struct pci_driver sky2_driver = {
+ .name = DRV_NAME,
+ .id_table = sky2_id_table,
+ .probe = sky2_probe,
+ .remove = sky2_remove,
+ .shutdown = sky2_shutdown,
+ .driver.pm = SKY2_PM_OPS,
+};
+
+static int __init sky2_init_module(void)
+{
+ pr_info("driver version " DRV_VERSION "\n");
+
+ sky2_debug_init();
+ return pci_register_driver(&sky2_driver);
+}
+
+static void __exit sky2_cleanup_module(void)
+{
+ pci_unregister_driver(&sky2_driver);
+ sky2_debug_cleanup();
+}
+
+module_init(sky2_init_module);
+module_exit(sky2_cleanup_module);
+
+MODULE_DESCRIPTION("Marvell Yukon 2 Gigabit Ethernet driver");
+MODULE_AUTHOR("Stephen Hemminger <shemminger@linux-foundation.org>");
+MODULE_LICENSE("GPL");
+MODULE_VERSION(DRV_VERSION);
diff --git a/drivers/net/ethernet/marvell/sky2.h b/drivers/net/ethernet/marvell/sky2.h
new file mode 100644
index 000000000..ec6dcd801
--- /dev/null
+++ b/drivers/net/ethernet/marvell/sky2.h
@@ -0,0 +1,2432 @@
+/*
+ * Definitions for the new Marvell Yukon 2 driver.
+ */
+#ifndef _SKY2_H
+#define _SKY2_H
+
+#define ETH_JUMBO_MTU 9000 /* Maximum MTU supported */
+
+/* PCI config registers */
+enum {
+ PCI_DEV_REG1 = 0x40,
+ PCI_DEV_REG2 = 0x44,
+ PCI_DEV_STATUS = 0x7c,
+ PCI_DEV_REG3 = 0x80,
+ PCI_DEV_REG4 = 0x84,
+ PCI_DEV_REG5 = 0x88,
+ PCI_CFG_REG_0 = 0x90,
+ PCI_CFG_REG_1 = 0x94,
+
+ PSM_CONFIG_REG0 = 0x98,
+ PSM_CONFIG_REG1 = 0x9C,
+ PSM_CONFIG_REG2 = 0x160,
+ PSM_CONFIG_REG3 = 0x164,
+ PSM_CONFIG_REG4 = 0x168,
+
+ PCI_LDO_CTRL = 0xbc,
+};
+
+/* Yukon-2 */
+enum pci_dev_reg_1 {
+ PCI_Y2_PIG_ENA = 1<<31, /* Enable Plug-in-Go (YUKON-2) */
+ PCI_Y2_DLL_DIS = 1<<30, /* Disable PCI DLL (YUKON-2) */
+ PCI_SW_PWR_ON_RST= 1<<30, /* SW Power on Reset (Yukon-EX) */
+ PCI_Y2_PHY2_COMA = 1<<29, /* Set PHY 2 to Coma Mode (YUKON-2) */
+ PCI_Y2_PHY1_COMA = 1<<28, /* Set PHY 1 to Coma Mode (YUKON-2) */
+ PCI_Y2_PHY2_POWD = 1<<27, /* Set PHY 2 to Power Down (YUKON-2) */
+ PCI_Y2_PHY1_POWD = 1<<26, /* Set PHY 1 to Power Down (YUKON-2) */
+ PCI_Y2_PME_LEGACY= 1<<15, /* PCI Express legacy power management mode */
+
+ PCI_PHY_LNK_TIM_MSK= 3L<<8,/* Bit 9.. 8: GPHY Link Trigger Timer */
+ PCI_ENA_L1_EVENT = 1<<7, /* Enable PEX L1 Event */
+ PCI_ENA_GPHY_LNK = 1<<6, /* Enable PEX L1 on GPHY Link down */
+ PCI_FORCE_PEX_L1 = 1<<5, /* Force to PEX L1 */
+};
+
+enum pci_dev_reg_2 {
+ PCI_VPD_WR_THR = 0xffL<<24, /* Bit 31..24: VPD Write Threshold */
+ PCI_DEV_SEL = 0x7fL<<17, /* Bit 23..17: EEPROM Device Select */
+ PCI_VPD_ROM_SZ = 7L<<14, /* Bit 16..14: VPD ROM Size */
+
+ PCI_PATCH_DIR = 0xfL<<8, /* Bit 11.. 8: Ext Patches dir 3..0 */
+ PCI_EXT_PATCHS = 0xfL<<4, /* Bit 7.. 4: Extended Patches 3..0 */
+ PCI_EN_DUMMY_RD = 1<<3, /* Enable Dummy Read */
+ PCI_REV_DESC = 1<<2, /* Reverse Desc. Bytes */
+
+ PCI_USEDATA64 = 1<<0, /* Use 64Bit Data bus ext */
+};
+
+/* PCI_OUR_REG_3 32 bit Our Register 3 (Yukon-ECU only) */
+enum pci_dev_reg_3 {
+ P_CLK_ASF_REGS_DIS = 1<<18,/* Disable Clock ASF (Yukon-Ext.) */
+ P_CLK_COR_REGS_D0_DIS = 1<<17,/* Disable Clock Core Regs D0 */
+ P_CLK_MACSEC_DIS = 1<<17,/* Disable Clock MACSec (Yukon-Ext.) */
+ P_CLK_PCI_REGS_D0_DIS = 1<<16,/* Disable Clock PCI Regs D0 */
+ P_CLK_COR_YTB_ARB_DIS = 1<<15,/* Disable Clock YTB Arbiter */
+ P_CLK_MAC_LNK1_D3_DIS = 1<<14,/* Disable Clock MAC Link1 D3 */
+ P_CLK_COR_LNK1_D0_DIS = 1<<13,/* Disable Clock Core Link1 D0 */
+ P_CLK_MAC_LNK1_D0_DIS = 1<<12,/* Disable Clock MAC Link1 D0 */
+ P_CLK_COR_LNK1_D3_DIS = 1<<11,/* Disable Clock Core Link1 D3 */
+ P_CLK_PCI_MST_ARB_DIS = 1<<10,/* Disable Clock PCI Master Arb. */
+ P_CLK_COR_REGS_D3_DIS = 1<<9, /* Disable Clock Core Regs D3 */
+ P_CLK_PCI_REGS_D3_DIS = 1<<8, /* Disable Clock PCI Regs D3 */
+ P_CLK_REF_LNK1_GM_DIS = 1<<7, /* Disable Clock Ref. Link1 GMAC */
+ P_CLK_COR_LNK1_GM_DIS = 1<<6, /* Disable Clock Core Link1 GMAC */
+ P_CLK_PCI_COMMON_DIS = 1<<5, /* Disable Clock PCI Common */
+ P_CLK_COR_COMMON_DIS = 1<<4, /* Disable Clock Core Common */
+ P_CLK_PCI_LNK1_BMU_DIS = 1<<3, /* Disable Clock PCI Link1 BMU */
+ P_CLK_COR_LNK1_BMU_DIS = 1<<2, /* Disable Clock Core Link1 BMU */
+ P_CLK_PCI_LNK1_BIU_DIS = 1<<1, /* Disable Clock PCI Link1 BIU */
+ P_CLK_COR_LNK1_BIU_DIS = 1<<0, /* Disable Clock Core Link1 BIU */
+ PCIE_OUR3_WOL_D3_COLD_SET = P_CLK_ASF_REGS_DIS |
+ P_CLK_COR_REGS_D0_DIS |
+ P_CLK_COR_LNK1_D0_DIS |
+ P_CLK_MAC_LNK1_D0_DIS |
+ P_CLK_PCI_MST_ARB_DIS |
+ P_CLK_COR_COMMON_DIS |
+ P_CLK_COR_LNK1_BMU_DIS,
+};
+
+/* PCI_OUR_REG_4 32 bit Our Register 4 (Yukon-ECU only) */
+enum pci_dev_reg_4 {
+ /* (Link Training & Status State Machine) */
+ P_PEX_LTSSM_STAT_MSK = 0x7fL<<25, /* Bit 31..25: PEX LTSSM Mask */
+#define P_PEX_LTSSM_STAT(x) ((x << 25) & P_PEX_LTSSM_STAT_MSK)
+ P_PEX_LTSSM_L1_STAT = 0x34,
+ P_PEX_LTSSM_DET_STAT = 0x01,
+ P_TIMER_VALUE_MSK = 0xffL<<16, /* Bit 23..16: Timer Value Mask */
+ /* (Active State Power Management) */
+ P_FORCE_ASPM_REQUEST = 1<<15, /* Force ASPM Request (A1 only) */
+ P_ASPM_GPHY_LINK_DOWN = 1<<14, /* GPHY Link Down (A1 only) */
+ P_ASPM_INT_FIFO_EMPTY = 1<<13, /* Internal FIFO Empty (A1 only) */
+ P_ASPM_CLKRUN_REQUEST = 1<<12, /* CLKRUN Request (A1 only) */
+
+ P_ASPM_FORCE_CLKREQ_ENA = 1<<4, /* Force CLKREQ Enable (A1b only) */
+ P_ASPM_CLKREQ_PAD_CTL = 1<<3, /* CLKREQ PAD Control (A1 only) */
+ P_ASPM_A1_MODE_SELECT = 1<<2, /* A1 Mode Select (A1 only) */
+ P_CLK_GATE_PEX_UNIT_ENA = 1<<1, /* Enable Gate PEX Unit Clock */
+ P_CLK_GATE_ROOT_COR_ENA = 1<<0, /* Enable Gate Root Core Clock */
+ P_ASPM_CONTROL_MSK = P_FORCE_ASPM_REQUEST | P_ASPM_GPHY_LINK_DOWN
+ | P_ASPM_CLKRUN_REQUEST | P_ASPM_INT_FIFO_EMPTY,
+};
+
+/* PCI_OUR_REG_5 32 bit Our Register 5 (Yukon-ECU only) */
+enum pci_dev_reg_5 {
+ /* Bit 31..27: for A3 & later */
+ P_CTL_DIV_CORE_CLK_ENA = 1<<31, /* Divide Core Clock Enable */
+ P_CTL_SRESET_VMAIN_AV = 1<<30, /* Soft Reset for Vmain_av De-Glitch */
+ P_CTL_BYPASS_VMAIN_AV = 1<<29, /* Bypass En. for Vmain_av De-Glitch */
+ P_CTL_TIM_VMAIN_AV_MSK = 3<<27, /* Bit 28..27: Timer Vmain_av Mask */
+ /* Bit 26..16: Release Clock on Event */
+ P_REL_PCIE_RST_DE_ASS = 1<<26, /* PCIe Reset De-Asserted */
+ P_REL_GPHY_REC_PACKET = 1<<25, /* GPHY Received Packet */
+ P_REL_INT_FIFO_N_EMPTY = 1<<24, /* Internal FIFO Not Empty */
+ P_REL_MAIN_PWR_AVAIL = 1<<23, /* Main Power Available */
+ P_REL_CLKRUN_REQ_REL = 1<<22, /* CLKRUN Request Release */
+ P_REL_PCIE_RESET_ASS = 1<<21, /* PCIe Reset Asserted */
+ P_REL_PME_ASSERTED = 1<<20, /* PME Asserted */
+ P_REL_PCIE_EXIT_L1_ST = 1<<19, /* PCIe Exit L1 State */
+ P_REL_LOADER_NOT_FIN = 1<<18, /* EPROM Loader Not Finished */
+ P_REL_PCIE_RX_EX_IDLE = 1<<17, /* PCIe Rx Exit Electrical Idle State */
+ P_REL_GPHY_LINK_UP = 1<<16, /* GPHY Link Up */
+
+ /* Bit 10.. 0: Mask for Gate Clock */
+ P_GAT_PCIE_RST_ASSERTED = 1<<10,/* PCIe Reset Asserted */
+ P_GAT_GPHY_N_REC_PACKET = 1<<9, /* GPHY Not Received Packet */
+ P_GAT_INT_FIFO_EMPTY = 1<<8, /* Internal FIFO Empty */
+ P_GAT_MAIN_PWR_N_AVAIL = 1<<7, /* Main Power Not Available */
+ P_GAT_CLKRUN_REQ_REL = 1<<6, /* CLKRUN Not Requested */
+ P_GAT_PCIE_RESET_ASS = 1<<5, /* PCIe Reset Asserted */
+ P_GAT_PME_DE_ASSERTED = 1<<4, /* PME De-Asserted */
+ P_GAT_PCIE_ENTER_L1_ST = 1<<3, /* PCIe Enter L1 State */
+ P_GAT_LOADER_FINISHED = 1<<2, /* EPROM Loader Finished */
+ P_GAT_PCIE_RX_EL_IDLE = 1<<1, /* PCIe Rx Electrical Idle State */
+ P_GAT_GPHY_LINK_DOWN = 1<<0, /* GPHY Link Down */
+
+ PCIE_OUR5_EVENT_CLK_D3_SET = P_REL_GPHY_REC_PACKET |
+ P_REL_INT_FIFO_N_EMPTY |
+ P_REL_PCIE_EXIT_L1_ST |
+ P_REL_PCIE_RX_EX_IDLE |
+ P_GAT_GPHY_N_REC_PACKET |
+ P_GAT_INT_FIFO_EMPTY |
+ P_GAT_PCIE_ENTER_L1_ST |
+ P_GAT_PCIE_RX_EL_IDLE,
+};
+
+/* PCI_CFG_REG_1 32 bit Config Register 1 (Yukon-Ext only) */
+enum pci_cfg_reg1 {
+ P_CF1_DIS_REL_EVT_RST = 1<<24, /* Dis. Rel. Event during PCIE reset */
+ /* Bit 23..21: Release Clock on Event */
+ P_CF1_REL_LDR_NOT_FIN = 1<<23, /* EEPROM Loader Not Finished */
+ P_CF1_REL_VMAIN_AVLBL = 1<<22, /* Vmain available */
+ P_CF1_REL_PCIE_RESET = 1<<21, /* PCI-E reset */
+ /* Bit 20..18: Gate Clock on Event */
+ P_CF1_GAT_LDR_NOT_FIN = 1<<20, /* EEPROM Loader Finished */
+ P_CF1_GAT_PCIE_RX_IDLE = 1<<19, /* PCI-E Rx Electrical idle */
+ P_CF1_GAT_PCIE_RESET = 1<<18, /* PCI-E Reset */
+ P_CF1_PRST_PHY_CLKREQ = 1<<17, /* Enable PCI-E rst & PM2PHY gen. CLKREQ */
+ P_CF1_PCIE_RST_CLKREQ = 1<<16, /* Enable PCI-E rst generate CLKREQ */
+
+ P_CF1_ENA_CFG_LDR_DONE = 1<<8, /* Enable core level Config loader done */
+
+ P_CF1_ENA_TXBMU_RD_IDLE = 1<<1, /* Enable TX BMU Read IDLE for ASPM */
+ P_CF1_ENA_TXBMU_WR_IDLE = 1<<0, /* Enable TX BMU Write IDLE for ASPM */
+
+ PCIE_CFG1_EVENT_CLK_D3_SET = P_CF1_DIS_REL_EVT_RST |
+ P_CF1_REL_LDR_NOT_FIN |
+ P_CF1_REL_VMAIN_AVLBL |
+ P_CF1_REL_PCIE_RESET |
+ P_CF1_GAT_LDR_NOT_FIN |
+ P_CF1_GAT_PCIE_RESET |
+ P_CF1_PRST_PHY_CLKREQ |
+ P_CF1_ENA_CFG_LDR_DONE |
+ P_CF1_ENA_TXBMU_RD_IDLE |
+ P_CF1_ENA_TXBMU_WR_IDLE,
+};
+
+/* Yukon-Optima */
+enum {
+ PSM_CONFIG_REG1_AC_PRESENT_STATUS = 1<<31, /* AC Present Status */
+
+ PSM_CONFIG_REG1_PTP_CLK_SEL = 1<<29, /* PTP Clock Select */
+ PSM_CONFIG_REG1_PTP_MODE = 1<<28, /* PTP Mode */
+
+ PSM_CONFIG_REG1_MUX_PHY_LINK = 1<<27, /* PHY Energy Detect Event */
+
+ PSM_CONFIG_REG1_EN_PIN63_AC_PRESENT = 1<<26, /* Enable LED_DUPLEX for ac_present */
+ PSM_CONFIG_REG1_EN_PCIE_TIMER = 1<<25, /* Enable PCIe Timer */
+ PSM_CONFIG_REG1_EN_SPU_TIMER = 1<<24, /* Enable SPU Timer */
+ PSM_CONFIG_REG1_POLARITY_AC_PRESENT = 1<<23, /* AC Present Polarity */
+
+ PSM_CONFIG_REG1_EN_AC_PRESENT = 1<<21, /* Enable AC Present */
+
+ PSM_CONFIG_REG1_EN_GPHY_INT_PSM = 1<<20, /* Enable GPHY INT for PSM */
+ PSM_CONFIG_REG1_DIS_PSM_TIMER = 1<<19, /* Disable PSM Timer */
+};
+
+/* Yukon-Supreme */
+enum {
+ PSM_CONFIG_REG1_GPHY_ENERGY_STS = 1<<31, /* GPHY Energy Detect Status */
+
+ PSM_CONFIG_REG1_UART_MODE_MSK = 3<<29, /* UART_Mode */
+ PSM_CONFIG_REG1_CLK_RUN_ASF = 1<<28, /* Enable Clock Free Running for ASF Subsystem */
+ PSM_CONFIG_REG1_UART_CLK_DISABLE= 1<<27, /* Disable UART clock */
+ PSM_CONFIG_REG1_VAUX_ONE = 1<<26, /* Tie internal Vaux to 1'b1 */
+ PSM_CONFIG_REG1_UART_FC_RI_VAL = 1<<25, /* Default value for UART_RI_n */
+ PSM_CONFIG_REG1_UART_FC_DCD_VAL = 1<<24, /* Default value for UART_DCD_n */
+ PSM_CONFIG_REG1_UART_FC_DSR_VAL = 1<<23, /* Default value for UART_DSR_n */
+ PSM_CONFIG_REG1_UART_FC_CTS_VAL = 1<<22, /* Default value for UART_CTS_n */
+ PSM_CONFIG_REG1_LATCH_VAUX = 1<<21, /* Enable Latch current Vaux_avlbl */
+ PSM_CONFIG_REG1_FORCE_TESTMODE_INPUT= 1<<20, /* Force Testmode pin as input PAD */
+ PSM_CONFIG_REG1_UART_RST = 1<<19, /* UART_RST */
+ PSM_CONFIG_REG1_PSM_PCIE_L1_POL = 1<<18, /* PCIE L1 Event Polarity for PSM */
+ PSM_CONFIG_REG1_TIMER_STAT = 1<<17, /* PSM Timer Status */
+ PSM_CONFIG_REG1_GPHY_INT = 1<<16, /* GPHY INT Status */
+ PSM_CONFIG_REG1_FORCE_TESTMODE_ZERO= 1<<15, /* Force internal Testmode as 1'b0 */
+ PSM_CONFIG_REG1_EN_INT_ASPM_CLKREQ = 1<<14, /* ENABLE INT for CLKRUN on ASPM and CLKREQ */
+ PSM_CONFIG_REG1_EN_SND_TASK_ASPM_CLKREQ = 1<<13, /* ENABLE Snd_task for CLKRUN on ASPM and CLKREQ */
+ PSM_CONFIG_REG1_DIS_CLK_GATE_SND_TASK = 1<<12, /* Disable CLK_GATE control snd_task */
+ PSM_CONFIG_REG1_DIS_FF_CHIAN_SND_INTA = 1<<11, /* Disable flip-flop chain for sndmsg_inta */
+
+ PSM_CONFIG_REG1_DIS_LOADER = 1<<9, /* Disable Loader SM after PSM Goes back to IDLE */
+ PSM_CONFIG_REG1_DO_PWDN = 1<<8, /* Do Power Down, Start PSM Scheme */
+ PSM_CONFIG_REG1_DIS_PIG = 1<<7, /* Disable Plug-in-Go SM after PSM Goes back to IDLE */
+ PSM_CONFIG_REG1_DIS_PERST = 1<<6, /* Disable Internal PCIe Reset after PSM Goes back to IDLE */
+ PSM_CONFIG_REG1_EN_REG18_PD = 1<<5, /* Enable REG18 Power Down for PSM */
+ PSM_CONFIG_REG1_EN_PSM_LOAD = 1<<4, /* Disable EEPROM Loader after PSM Goes back to IDLE */
+ PSM_CONFIG_REG1_EN_PSM_HOT_RST = 1<<3, /* Enable PCIe Hot Reset for PSM */
+ PSM_CONFIG_REG1_EN_PSM_PERST = 1<<2, /* Enable PCIe Reset Event for PSM */
+ PSM_CONFIG_REG1_EN_PSM_PCIE_L1 = 1<<1, /* Enable PCIe L1 Event for PSM */
+ PSM_CONFIG_REG1_EN_PSM = 1<<0, /* Enable PSM Scheme */
+};
+
+/* PSM_CONFIG_REG4 0x0168 PSM Config Register 4 */
+enum {
+ /* PHY Link Detect Timer */
+ PSM_CONFIG_REG4_TIMER_PHY_LINK_DETECT_MSK = 0xf<<4,
+ PSM_CONFIG_REG4_TIMER_PHY_LINK_DETECT_BASE = 4,
+
+ PSM_CONFIG_REG4_DEBUG_TIMER = 1<<1, /* Debug Timer */
+ PSM_CONFIG_REG4_RST_PHY_LINK_DETECT = 1<<0, /* Reset GPHY Link Detect */
+};
+
+
+#define PCI_STATUS_ERROR_BITS (PCI_STATUS_DETECTED_PARITY | \
+ PCI_STATUS_SIG_SYSTEM_ERROR | \
+ PCI_STATUS_REC_MASTER_ABORT | \
+ PCI_STATUS_REC_TARGET_ABORT | \
+ PCI_STATUS_PARITY)
+
+enum csr_regs {
+ B0_RAP = 0x0000,
+ B0_CTST = 0x0004,
+
+ B0_POWER_CTRL = 0x0007,
+ B0_ISRC = 0x0008,
+ B0_IMSK = 0x000c,
+ B0_HWE_ISRC = 0x0010,
+ B0_HWE_IMSK = 0x0014,
+
+ /* Special ISR registers (Yukon-2 only) */
+ B0_Y2_SP_ISRC2 = 0x001c,
+ B0_Y2_SP_ISRC3 = 0x0020,
+ B0_Y2_SP_EISR = 0x0024,
+ B0_Y2_SP_LISR = 0x0028,
+ B0_Y2_SP_ICR = 0x002c,
+
+ B2_MAC_1 = 0x0100,
+ B2_MAC_2 = 0x0108,
+ B2_MAC_3 = 0x0110,
+ B2_CONN_TYP = 0x0118,
+ B2_PMD_TYP = 0x0119,
+ B2_MAC_CFG = 0x011a,
+ B2_CHIP_ID = 0x011b,
+ B2_E_0 = 0x011c,
+
+ B2_Y2_CLK_GATE = 0x011d,
+ B2_Y2_HW_RES = 0x011e,
+ B2_E_3 = 0x011f,
+ B2_Y2_CLK_CTRL = 0x0120,
+
+ B2_TI_INI = 0x0130,
+ B2_TI_VAL = 0x0134,
+ B2_TI_CTRL = 0x0138,
+ B2_TI_TEST = 0x0139,
+
+ B2_TST_CTRL1 = 0x0158,
+ B2_TST_CTRL2 = 0x0159,
+ B2_GP_IO = 0x015c,
+
+ B2_I2C_CTRL = 0x0160,
+ B2_I2C_DATA = 0x0164,
+ B2_I2C_IRQ = 0x0168,
+ B2_I2C_SW = 0x016c,
+
+ Y2_PEX_PHY_DATA = 0x0170,
+ Y2_PEX_PHY_ADDR = 0x0172,
+
+ B3_RAM_ADDR = 0x0180,
+ B3_RAM_DATA_LO = 0x0184,
+ B3_RAM_DATA_HI = 0x0188,
+
+/* RAM Interface Registers */
+/* Yukon-2: use RAM_BUFFER() to access the RAM buffer */
+/*
+ * The HW-Spec. calls this registers Timeout Value 0..11. But this names are
+ * not usable in SW. Please notice these are NOT real timeouts, these are
+ * the number of qWords transferred continuously.
+ */
+#define RAM_BUFFER(port, reg) (reg | (port <<6))
+
+ B3_RI_WTO_R1 = 0x0190,
+ B3_RI_WTO_XA1 = 0x0191,
+ B3_RI_WTO_XS1 = 0x0192,
+ B3_RI_RTO_R1 = 0x0193,
+ B3_RI_RTO_XA1 = 0x0194,
+ B3_RI_RTO_XS1 = 0x0195,
+ B3_RI_WTO_R2 = 0x0196,
+ B3_RI_WTO_XA2 = 0x0197,
+ B3_RI_WTO_XS2 = 0x0198,
+ B3_RI_RTO_R2 = 0x0199,
+ B3_RI_RTO_XA2 = 0x019a,
+ B3_RI_RTO_XS2 = 0x019b,
+ B3_RI_TO_VAL = 0x019c,
+ B3_RI_CTRL = 0x01a0,
+ B3_RI_TEST = 0x01a2,
+ B3_MA_TOINI_RX1 = 0x01b0,
+ B3_MA_TOINI_RX2 = 0x01b1,
+ B3_MA_TOINI_TX1 = 0x01b2,
+ B3_MA_TOINI_TX2 = 0x01b3,
+ B3_MA_TOVAL_RX1 = 0x01b4,
+ B3_MA_TOVAL_RX2 = 0x01b5,
+ B3_MA_TOVAL_TX1 = 0x01b6,
+ B3_MA_TOVAL_TX2 = 0x01b7,
+ B3_MA_TO_CTRL = 0x01b8,
+ B3_MA_TO_TEST = 0x01ba,
+ B3_MA_RCINI_RX1 = 0x01c0,
+ B3_MA_RCINI_RX2 = 0x01c1,
+ B3_MA_RCINI_TX1 = 0x01c2,
+ B3_MA_RCINI_TX2 = 0x01c3,
+ B3_MA_RCVAL_RX1 = 0x01c4,
+ B3_MA_RCVAL_RX2 = 0x01c5,
+ B3_MA_RCVAL_TX1 = 0x01c6,
+ B3_MA_RCVAL_TX2 = 0x01c7,
+ B3_MA_RC_CTRL = 0x01c8,
+ B3_MA_RC_TEST = 0x01ca,
+ B3_PA_TOINI_RX1 = 0x01d0,
+ B3_PA_TOINI_RX2 = 0x01d4,
+ B3_PA_TOINI_TX1 = 0x01d8,
+ B3_PA_TOINI_TX2 = 0x01dc,
+ B3_PA_TOVAL_RX1 = 0x01e0,
+ B3_PA_TOVAL_RX2 = 0x01e4,
+ B3_PA_TOVAL_TX1 = 0x01e8,
+ B3_PA_TOVAL_TX2 = 0x01ec,
+ B3_PA_CTRL = 0x01f0,
+ B3_PA_TEST = 0x01f2,
+
+ Y2_CFG_SPC = 0x1c00, /* PCI config space region */
+ Y2_CFG_AER = 0x1d00, /* PCI Advanced Error Report region */
+};
+
+/* B0_CTST 24 bit Control/Status register */
+enum {
+ Y2_VMAIN_AVAIL = 1<<17,/* VMAIN available (YUKON-2 only) */
+ Y2_VAUX_AVAIL = 1<<16,/* VAUX available (YUKON-2 only) */
+ Y2_HW_WOL_ON = 1<<15,/* HW WOL On (Yukon-EC Ultra A1 only) */
+ Y2_HW_WOL_OFF = 1<<14,/* HW WOL On (Yukon-EC Ultra A1 only) */
+ Y2_ASF_ENABLE = 1<<13,/* ASF Unit Enable (YUKON-2 only) */
+ Y2_ASF_DISABLE = 1<<12,/* ASF Unit Disable (YUKON-2 only) */
+ Y2_CLK_RUN_ENA = 1<<11,/* CLK_RUN Enable (YUKON-2 only) */
+ Y2_CLK_RUN_DIS = 1<<10,/* CLK_RUN Disable (YUKON-2 only) */
+ Y2_LED_STAT_ON = 1<<9, /* Status LED On (YUKON-2 only) */
+ Y2_LED_STAT_OFF = 1<<8, /* Status LED Off (YUKON-2 only) */
+
+ CS_ST_SW_IRQ = 1<<7, /* Set IRQ SW Request */
+ CS_CL_SW_IRQ = 1<<6, /* Clear IRQ SW Request */
+ CS_STOP_DONE = 1<<5, /* Stop Master is finished */
+ CS_STOP_MAST = 1<<4, /* Command Bit to stop the master */
+ CS_MRST_CLR = 1<<3, /* Clear Master reset */
+ CS_MRST_SET = 1<<2, /* Set Master reset */
+ CS_RST_CLR = 1<<1, /* Clear Software reset */
+ CS_RST_SET = 1, /* Set Software reset */
+};
+
+/* B0_POWER_CTRL 8 Bit Power Control reg (YUKON only) */
+enum {
+ PC_VAUX_ENA = 1<<7, /* Switch VAUX Enable */
+ PC_VAUX_DIS = 1<<6, /* Switch VAUX Disable */
+ PC_VCC_ENA = 1<<5, /* Switch VCC Enable */
+ PC_VCC_DIS = 1<<4, /* Switch VCC Disable */
+ PC_VAUX_ON = 1<<3, /* Switch VAUX On */
+ PC_VAUX_OFF = 1<<2, /* Switch VAUX Off */
+ PC_VCC_ON = 1<<1, /* Switch VCC On */
+ PC_VCC_OFF = 1<<0, /* Switch VCC Off */
+};
+
+/* B2_IRQM_MSK 32 bit IRQ Moderation Mask */
+
+/* B0_Y2_SP_ISRC2 32 bit Special Interrupt Source Reg 2 */
+/* B0_Y2_SP_ISRC3 32 bit Special Interrupt Source Reg 3 */
+/* B0_Y2_SP_EISR 32 bit Enter ISR Reg */
+/* B0_Y2_SP_LISR 32 bit Leave ISR Reg */
+enum {
+ Y2_IS_HW_ERR = 1<<31, /* Interrupt HW Error */
+ Y2_IS_STAT_BMU = 1<<30, /* Status BMU Interrupt */
+ Y2_IS_ASF = 1<<29, /* ASF subsystem Interrupt */
+ Y2_IS_CPU_TO = 1<<28, /* CPU Timeout */
+ Y2_IS_POLL_CHK = 1<<27, /* Check IRQ from polling unit */
+ Y2_IS_TWSI_RDY = 1<<26, /* IRQ on end of TWSI Tx */
+ Y2_IS_IRQ_SW = 1<<25, /* SW forced IRQ */
+ Y2_IS_TIMINT = 1<<24, /* IRQ from Timer */
+
+ Y2_IS_IRQ_PHY2 = 1<<12, /* Interrupt from PHY 2 */
+ Y2_IS_IRQ_MAC2 = 1<<11, /* Interrupt from MAC 2 */
+ Y2_IS_CHK_RX2 = 1<<10, /* Descriptor error Rx 2 */
+ Y2_IS_CHK_TXS2 = 1<<9, /* Descriptor error TXS 2 */
+ Y2_IS_CHK_TXA2 = 1<<8, /* Descriptor error TXA 2 */
+
+ Y2_IS_PSM_ACK = 1<<7, /* PSM Acknowledge (Yukon-Optima only) */
+ Y2_IS_PTP_TIST = 1<<6, /* PTP Time Stamp (Yukon-Optima only) */
+ Y2_IS_PHY_QLNK = 1<<5, /* PHY Quick Link (Yukon-Optima only) */
+
+ Y2_IS_IRQ_PHY1 = 1<<4, /* Interrupt from PHY 1 */
+ Y2_IS_IRQ_MAC1 = 1<<3, /* Interrupt from MAC 1 */
+ Y2_IS_CHK_RX1 = 1<<2, /* Descriptor error Rx 1 */
+ Y2_IS_CHK_TXS1 = 1<<1, /* Descriptor error TXS 1 */
+ Y2_IS_CHK_TXA1 = 1<<0, /* Descriptor error TXA 1 */
+
+ Y2_IS_BASE = Y2_IS_HW_ERR | Y2_IS_STAT_BMU,
+ Y2_IS_PORT_1 = Y2_IS_IRQ_PHY1 | Y2_IS_IRQ_MAC1
+ | Y2_IS_CHK_TXA1 | Y2_IS_CHK_RX1,
+ Y2_IS_PORT_2 = Y2_IS_IRQ_PHY2 | Y2_IS_IRQ_MAC2
+ | Y2_IS_CHK_TXA2 | Y2_IS_CHK_RX2,
+ Y2_IS_ERROR = Y2_IS_HW_ERR |
+ Y2_IS_IRQ_MAC1 | Y2_IS_CHK_TXA1 | Y2_IS_CHK_RX1 |
+ Y2_IS_IRQ_MAC2 | Y2_IS_CHK_TXA2 | Y2_IS_CHK_RX2,
+};
+
+/* B2_IRQM_HWE_MSK 32 bit IRQ Moderation HW Error Mask */
+enum {
+ IS_ERR_MSK = 0x00003fff,/* All Error bits */
+
+ IS_IRQ_TIST_OV = 1<<13, /* Time Stamp Timer Overflow (YUKON only) */
+ IS_IRQ_SENSOR = 1<<12, /* IRQ from Sensor (YUKON only) */
+ IS_IRQ_MST_ERR = 1<<11, /* IRQ master error detected */
+ IS_IRQ_STAT = 1<<10, /* IRQ status exception */
+ IS_NO_STAT_M1 = 1<<9, /* No Rx Status from MAC 1 */
+ IS_NO_STAT_M2 = 1<<8, /* No Rx Status from MAC 2 */
+ IS_NO_TIST_M1 = 1<<7, /* No Time Stamp from MAC 1 */
+ IS_NO_TIST_M2 = 1<<6, /* No Time Stamp from MAC 2 */
+ IS_RAM_RD_PAR = 1<<5, /* RAM Read Parity Error */
+ IS_RAM_WR_PAR = 1<<4, /* RAM Write Parity Error */
+ IS_M1_PAR_ERR = 1<<3, /* MAC 1 Parity Error */
+ IS_M2_PAR_ERR = 1<<2, /* MAC 2 Parity Error */
+ IS_R1_PAR_ERR = 1<<1, /* Queue R1 Parity Error */
+ IS_R2_PAR_ERR = 1<<0, /* Queue R2 Parity Error */
+};
+
+/* Hardware error interrupt mask for Yukon 2 */
+enum {
+ Y2_IS_TIST_OV = 1<<29,/* Time Stamp Timer overflow interrupt */
+ Y2_IS_SENSOR = 1<<28, /* Sensor interrupt */
+ Y2_IS_MST_ERR = 1<<27, /* Master error interrupt */
+ Y2_IS_IRQ_STAT = 1<<26, /* Status exception interrupt */
+ Y2_IS_PCI_EXP = 1<<25, /* PCI-Express interrupt */
+ Y2_IS_PCI_NEXP = 1<<24, /* PCI-Express error similar to PCI error */
+ /* Link 2 */
+ Y2_IS_PAR_RD2 = 1<<13, /* Read RAM parity error interrupt */
+ Y2_IS_PAR_WR2 = 1<<12, /* Write RAM parity error interrupt */
+ Y2_IS_PAR_MAC2 = 1<<11, /* MAC hardware fault interrupt */
+ Y2_IS_PAR_RX2 = 1<<10, /* Parity Error Rx Queue 2 */
+ Y2_IS_TCP_TXS2 = 1<<9, /* TCP length mismatch sync Tx queue IRQ */
+ Y2_IS_TCP_TXA2 = 1<<8, /* TCP length mismatch async Tx queue IRQ */
+ /* Link 1 */
+ Y2_IS_PAR_RD1 = 1<<5, /* Read RAM parity error interrupt */
+ Y2_IS_PAR_WR1 = 1<<4, /* Write RAM parity error interrupt */
+ Y2_IS_PAR_MAC1 = 1<<3, /* MAC hardware fault interrupt */
+ Y2_IS_PAR_RX1 = 1<<2, /* Parity Error Rx Queue 1 */
+ Y2_IS_TCP_TXS1 = 1<<1, /* TCP length mismatch sync Tx queue IRQ */
+ Y2_IS_TCP_TXA1 = 1<<0, /* TCP length mismatch async Tx queue IRQ */
+
+ Y2_HWE_L1_MASK = Y2_IS_PAR_RD1 | Y2_IS_PAR_WR1 | Y2_IS_PAR_MAC1 |
+ Y2_IS_PAR_RX1 | Y2_IS_TCP_TXS1| Y2_IS_TCP_TXA1,
+ Y2_HWE_L2_MASK = Y2_IS_PAR_RD2 | Y2_IS_PAR_WR2 | Y2_IS_PAR_MAC2 |
+ Y2_IS_PAR_RX2 | Y2_IS_TCP_TXS2| Y2_IS_TCP_TXA2,
+
+ Y2_HWE_ALL_MASK = Y2_IS_TIST_OV | Y2_IS_MST_ERR | Y2_IS_IRQ_STAT |
+ Y2_HWE_L1_MASK | Y2_HWE_L2_MASK,
+};
+
+/* B28_DPT_CTRL 8 bit Descriptor Poll Timer Ctrl Reg */
+enum {
+ DPT_START = 1<<1,
+ DPT_STOP = 1<<0,
+};
+
+/* B2_TST_CTRL1 8 bit Test Control Register 1 */
+enum {
+ TST_FRC_DPERR_MR = 1<<7, /* force DATAPERR on MST RD */
+ TST_FRC_DPERR_MW = 1<<6, /* force DATAPERR on MST WR */
+ TST_FRC_DPERR_TR = 1<<5, /* force DATAPERR on TRG RD */
+ TST_FRC_DPERR_TW = 1<<4, /* force DATAPERR on TRG WR */
+ TST_FRC_APERR_M = 1<<3, /* force ADDRPERR on MST */
+ TST_FRC_APERR_T = 1<<2, /* force ADDRPERR on TRG */
+ TST_CFG_WRITE_ON = 1<<1, /* Enable Config Reg WR */
+ TST_CFG_WRITE_OFF= 1<<0, /* Disable Config Reg WR */
+};
+
+/* B2_GPIO */
+enum {
+ GLB_GPIO_CLK_DEB_ENA = 1<<31, /* Clock Debug Enable */
+ GLB_GPIO_CLK_DBG_MSK = 0xf<<26, /* Clock Debug */
+
+ GLB_GPIO_INT_RST_D3_DIS = 1<<15, /* Disable Internal Reset After D3 to D0 */
+ GLB_GPIO_LED_PAD_SPEED_UP = 1<<14, /* LED PAD Speed Up */
+ GLB_GPIO_STAT_RACE_DIS = 1<<13, /* Status Race Disable */
+ GLB_GPIO_TEST_SEL_MSK = 3<<11, /* Testmode Select */
+ GLB_GPIO_TEST_SEL_BASE = 1<<11,
+ GLB_GPIO_RAND_ENA = 1<<10, /* Random Enable */
+ GLB_GPIO_RAND_BIT_1 = 1<<9, /* Random Bit 1 */
+};
+
+/* B2_MAC_CFG 8 bit MAC Configuration / Chip Revision */
+enum {
+ CFG_CHIP_R_MSK = 0xf<<4, /* Bit 7.. 4: Chip Revision */
+ /* Bit 3.. 2: reserved */
+ CFG_DIS_M2_CLK = 1<<1, /* Disable Clock for 2nd MAC */
+ CFG_SNG_MAC = 1<<0, /* MAC Config: 0=2 MACs / 1=1 MAC*/
+};
+
+/* B2_CHIP_ID 8 bit Chip Identification Number */
+enum {
+ CHIP_ID_YUKON_XL = 0xb3, /* YUKON-2 XL */
+ CHIP_ID_YUKON_EC_U = 0xb4, /* YUKON-2 EC Ultra */
+ CHIP_ID_YUKON_EX = 0xb5, /* YUKON-2 Extreme */
+ CHIP_ID_YUKON_EC = 0xb6, /* YUKON-2 EC */
+ CHIP_ID_YUKON_FE = 0xb7, /* YUKON-2 FE */
+ CHIP_ID_YUKON_FE_P = 0xb8, /* YUKON-2 FE+ */
+ CHIP_ID_YUKON_SUPR = 0xb9, /* YUKON-2 Supreme */
+ CHIP_ID_YUKON_UL_2 = 0xba, /* YUKON-2 Ultra 2 */
+ CHIP_ID_YUKON_OPT = 0xbc, /* YUKON-2 Optima */
+ CHIP_ID_YUKON_PRM = 0xbd, /* YUKON-2 Optima Prime */
+ CHIP_ID_YUKON_OP_2 = 0xbe, /* YUKON-2 Optima 2 */
+};
+
+enum yukon_xl_rev {
+ CHIP_REV_YU_XL_A0 = 0,
+ CHIP_REV_YU_XL_A1 = 1,
+ CHIP_REV_YU_XL_A2 = 2,
+ CHIP_REV_YU_XL_A3 = 3,
+};
+
+enum yukon_ec_rev {
+ CHIP_REV_YU_EC_A1 = 0, /* Chip Rev. for Yukon-EC A1/A0 */
+ CHIP_REV_YU_EC_A2 = 1, /* Chip Rev. for Yukon-EC A2 */
+ CHIP_REV_YU_EC_A3 = 2, /* Chip Rev. for Yukon-EC A3 */
+};
+enum yukon_ec_u_rev {
+ CHIP_REV_YU_EC_U_A0 = 1,
+ CHIP_REV_YU_EC_U_A1 = 2,
+ CHIP_REV_YU_EC_U_B0 = 3,
+ CHIP_REV_YU_EC_U_B1 = 5,
+};
+enum yukon_fe_rev {
+ CHIP_REV_YU_FE_A1 = 1,
+ CHIP_REV_YU_FE_A2 = 2,
+};
+enum yukon_fe_p_rev {
+ CHIP_REV_YU_FE2_A0 = 0,
+};
+enum yukon_ex_rev {
+ CHIP_REV_YU_EX_A0 = 1,
+ CHIP_REV_YU_EX_B0 = 2,
+};
+enum yukon_supr_rev {
+ CHIP_REV_YU_SU_A0 = 0,
+ CHIP_REV_YU_SU_B0 = 1,
+ CHIP_REV_YU_SU_B1 = 3,
+};
+
+enum yukon_prm_rev {
+ CHIP_REV_YU_PRM_Z1 = 1,
+ CHIP_REV_YU_PRM_A0 = 2,
+};
+
+/* B2_Y2_CLK_GATE 8 bit Clock Gating (Yukon-2 only) */
+enum {
+ Y2_STATUS_LNK2_INAC = 1<<7, /* Status Link 2 inactive (0 = active) */
+ Y2_CLK_GAT_LNK2_DIS = 1<<6, /* Disable clock gating Link 2 */
+ Y2_COR_CLK_LNK2_DIS = 1<<5, /* Disable Core clock Link 2 */
+ Y2_PCI_CLK_LNK2_DIS = 1<<4, /* Disable PCI clock Link 2 */
+ Y2_STATUS_LNK1_INAC = 1<<3, /* Status Link 1 inactive (0 = active) */
+ Y2_CLK_GAT_LNK1_DIS = 1<<2, /* Disable clock gating Link 1 */
+ Y2_COR_CLK_LNK1_DIS = 1<<1, /* Disable Core clock Link 1 */
+ Y2_PCI_CLK_LNK1_DIS = 1<<0, /* Disable PCI clock Link 1 */
+};
+
+/* B2_Y2_HW_RES 8 bit HW Resources (Yukon-2 only) */
+enum {
+ CFG_LED_MODE_MSK = 7<<2, /* Bit 4.. 2: LED Mode Mask */
+ CFG_LINK_2_AVAIL = 1<<1, /* Link 2 available */
+ CFG_LINK_1_AVAIL = 1<<0, /* Link 1 available */
+};
+#define CFG_LED_MODE(x) (((x) & CFG_LED_MODE_MSK) >> 2)
+#define CFG_DUAL_MAC_MSK (CFG_LINK_2_AVAIL | CFG_LINK_1_AVAIL)
+
+
+/* B2_Y2_CLK_CTRL 32 bit Clock Frequency Control Register (Yukon-2/EC) */
+enum {
+ Y2_CLK_DIV_VAL_MSK = 0xff<<16,/* Bit 23..16: Clock Divisor Value */
+#define Y2_CLK_DIV_VAL(x) (((x)<<16) & Y2_CLK_DIV_VAL_MSK)
+ Y2_CLK_DIV_VAL2_MSK = 7<<21, /* Bit 23..21: Clock Divisor Value */
+ Y2_CLK_SELECT2_MSK = 0x1f<<16,/* Bit 20..16: Clock Select */
+#define Y2_CLK_DIV_VAL_2(x) (((x)<<21) & Y2_CLK_DIV_VAL2_MSK)
+#define Y2_CLK_SEL_VAL_2(x) (((x)<<16) & Y2_CLK_SELECT2_MSK)
+ Y2_CLK_DIV_ENA = 1<<1, /* Enable Core Clock Division */
+ Y2_CLK_DIV_DIS = 1<<0, /* Disable Core Clock Division */
+};
+
+/* B2_TI_CTRL 8 bit Timer control */
+/* B2_IRQM_CTRL 8 bit IRQ Moderation Timer Control */
+enum {
+ TIM_START = 1<<2, /* Start Timer */
+ TIM_STOP = 1<<1, /* Stop Timer */
+ TIM_CLR_IRQ = 1<<0, /* Clear Timer IRQ (!IRQM) */
+};
+
+/* B2_TI_TEST 8 Bit Timer Test */
+/* B2_IRQM_TEST 8 bit IRQ Moderation Timer Test */
+/* B28_DPT_TST 8 bit Descriptor Poll Timer Test Reg */
+enum {
+ TIM_T_ON = 1<<2, /* Test mode on */
+ TIM_T_OFF = 1<<1, /* Test mode off */
+ TIM_T_STEP = 1<<0, /* Test step */
+};
+
+/* Y2_PEX_PHY_ADDR/DATA PEX PHY address and data reg (Yukon-2 only) */
+enum {
+ PEX_RD_ACCESS = 1<<31, /* Access Mode Read = 1, Write = 0 */
+ PEX_DB_ACCESS = 1<<30, /* Access to debug register */
+};
+
+/* B3_RAM_ADDR 32 bit RAM Address, to read or write */
+ /* Bit 31..19: reserved */
+#define RAM_ADR_RAN 0x0007ffffL /* Bit 18.. 0: RAM Address Range */
+/* RAM Interface Registers */
+
+/* B3_RI_CTRL 16 bit RAM Interface Control Register */
+enum {
+ RI_CLR_RD_PERR = 1<<9, /* Clear IRQ RAM Read Parity Err */
+ RI_CLR_WR_PERR = 1<<8, /* Clear IRQ RAM Write Parity Err*/
+
+ RI_RST_CLR = 1<<1, /* Clear RAM Interface Reset */
+ RI_RST_SET = 1<<0, /* Set RAM Interface Reset */
+};
+
+#define SK_RI_TO_53 36 /* RAM interface timeout */
+
+
+/* Port related registers FIFO, and Arbiter */
+#define SK_REG(port,reg) (((port)<<7)+(reg))
+
+/* Transmit Arbiter Registers MAC 1 and 2, use SK_REG() to access */
+/* TXA_ITI_INI 32 bit Tx Arb Interval Timer Init Val */
+/* TXA_ITI_VAL 32 bit Tx Arb Interval Timer Value */
+/* TXA_LIM_INI 32 bit Tx Arb Limit Counter Init Val */
+/* TXA_LIM_VAL 32 bit Tx Arb Limit Counter Value */
+
+#define TXA_MAX_VAL 0x00ffffffUL /* Bit 23.. 0: Max TXA Timer/Cnt Val */
+
+/* TXA_CTRL 8 bit Tx Arbiter Control Register */
+enum {
+ TXA_ENA_FSYNC = 1<<7, /* Enable force of sync Tx queue */
+ TXA_DIS_FSYNC = 1<<6, /* Disable force of sync Tx queue */
+ TXA_ENA_ALLOC = 1<<5, /* Enable alloc of free bandwidth */
+ TXA_DIS_ALLOC = 1<<4, /* Disable alloc of free bandwidth */
+ TXA_START_RC = 1<<3, /* Start sync Rate Control */
+ TXA_STOP_RC = 1<<2, /* Stop sync Rate Control */
+ TXA_ENA_ARB = 1<<1, /* Enable Tx Arbiter */
+ TXA_DIS_ARB = 1<<0, /* Disable Tx Arbiter */
+};
+
+/*
+ * Bank 4 - 5
+ */
+/* Transmit Arbiter Registers MAC 1 and 2, use SK_REG() to access */
+enum {
+ TXA_ITI_INI = 0x0200,/* 32 bit Tx Arb Interval Timer Init Val*/
+ TXA_ITI_VAL = 0x0204,/* 32 bit Tx Arb Interval Timer Value */
+ TXA_LIM_INI = 0x0208,/* 32 bit Tx Arb Limit Counter Init Val */
+ TXA_LIM_VAL = 0x020c,/* 32 bit Tx Arb Limit Counter Value */
+ TXA_CTRL = 0x0210,/* 8 bit Tx Arbiter Control Register */
+ TXA_TEST = 0x0211,/* 8 bit Tx Arbiter Test Register */
+ TXA_STAT = 0x0212,/* 8 bit Tx Arbiter Status Register */
+
+ RSS_KEY = 0x0220, /* RSS Key setup */
+ RSS_CFG = 0x0248, /* RSS Configuration */
+};
+
+enum {
+ HASH_TCP_IPV6_EX_CTRL = 1<<5,
+ HASH_IPV6_EX_CTRL = 1<<4,
+ HASH_TCP_IPV6_CTRL = 1<<3,
+ HASH_IPV6_CTRL = 1<<2,
+ HASH_TCP_IPV4_CTRL = 1<<1,
+ HASH_IPV4_CTRL = 1<<0,
+
+ HASH_ALL = 0x3f,
+};
+
+enum {
+ B6_EXT_REG = 0x0300,/* External registers (GENESIS only) */
+ B7_CFG_SPC = 0x0380,/* copy of the Configuration register */
+ B8_RQ1_REGS = 0x0400,/* Receive Queue 1 */
+ B8_RQ2_REGS = 0x0480,/* Receive Queue 2 */
+ B8_TS1_REGS = 0x0600,/* Transmit sync queue 1 */
+ B8_TA1_REGS = 0x0680,/* Transmit async queue 1 */
+ B8_TS2_REGS = 0x0700,/* Transmit sync queue 2 */
+ B8_TA2_REGS = 0x0780,/* Transmit sync queue 2 */
+ B16_RAM_REGS = 0x0800,/* RAM Buffer Registers */
+};
+
+/* Queue Register Offsets, use Q_ADDR() to access */
+enum {
+ B8_Q_REGS = 0x0400, /* base of Queue registers */
+ Q_D = 0x00, /* 8*32 bit Current Descriptor */
+ Q_VLAN = 0x20, /* 16 bit Current VLAN Tag */
+ Q_DONE = 0x24, /* 16 bit Done Index */
+ Q_AC_L = 0x28, /* 32 bit Current Address Counter Low dWord */
+ Q_AC_H = 0x2c, /* 32 bit Current Address Counter High dWord */
+ Q_BC = 0x30, /* 32 bit Current Byte Counter */
+ Q_CSR = 0x34, /* 32 bit BMU Control/Status Register */
+ Q_TEST = 0x38, /* 32 bit Test/Control Register */
+
+/* Yukon-2 */
+ Q_WM = 0x40, /* 16 bit FIFO Watermark */
+ Q_AL = 0x42, /* 8 bit FIFO Alignment */
+ Q_RSP = 0x44, /* 16 bit FIFO Read Shadow Pointer */
+ Q_RSL = 0x46, /* 8 bit FIFO Read Shadow Level */
+ Q_RP = 0x48, /* 8 bit FIFO Read Pointer */
+ Q_RL = 0x4a, /* 8 bit FIFO Read Level */
+ Q_WP = 0x4c, /* 8 bit FIFO Write Pointer */
+ Q_WSP = 0x4d, /* 8 bit FIFO Write Shadow Pointer */
+ Q_WL = 0x4e, /* 8 bit FIFO Write Level */
+ Q_WSL = 0x4f, /* 8 bit FIFO Write Shadow Level */
+};
+#define Q_ADDR(reg, offs) (B8_Q_REGS + (reg) + (offs))
+
+/* Q_TEST 32 bit Test Register */
+enum {
+ /* Transmit */
+ F_TX_CHK_AUTO_OFF = 1<<31, /* Tx checksum auto calc off (Yukon EX) */
+ F_TX_CHK_AUTO_ON = 1<<30, /* Tx checksum auto calc off (Yukon EX) */
+
+ /* Receive */
+ F_M_RX_RAM_DIS = 1<<24, /* MAC Rx RAM Read Port disable */
+
+ /* Hardware testbits not used */
+};
+
+/* Queue Prefetch Unit Offsets, use Y2_QADDR() to address (Yukon-2 only)*/
+enum {
+ Y2_B8_PREF_REGS = 0x0450,
+
+ PREF_UNIT_CTRL = 0x00, /* 32 bit Control register */
+ PREF_UNIT_LAST_IDX = 0x04, /* 16 bit Last Index */
+ PREF_UNIT_ADDR_LO = 0x08, /* 32 bit List start addr, low part */
+ PREF_UNIT_ADDR_HI = 0x0c, /* 32 bit List start addr, high part*/
+ PREF_UNIT_GET_IDX = 0x10, /* 16 bit Get Index */
+ PREF_UNIT_PUT_IDX = 0x14, /* 16 bit Put Index */
+ PREF_UNIT_FIFO_WP = 0x20, /* 8 bit FIFO write pointer */
+ PREF_UNIT_FIFO_RP = 0x24, /* 8 bit FIFO read pointer */
+ PREF_UNIT_FIFO_WM = 0x28, /* 8 bit FIFO watermark */
+ PREF_UNIT_FIFO_LEV = 0x2c, /* 8 bit FIFO level */
+
+ PREF_UNIT_MASK_IDX = 0x0fff,
+};
+#define Y2_QADDR(q,reg) (Y2_B8_PREF_REGS + (q) + (reg))
+
+/* RAM Buffer Register Offsets */
+enum {
+
+ RB_START = 0x00,/* 32 bit RAM Buffer Start Address */
+ RB_END = 0x04,/* 32 bit RAM Buffer End Address */
+ RB_WP = 0x08,/* 32 bit RAM Buffer Write Pointer */
+ RB_RP = 0x0c,/* 32 bit RAM Buffer Read Pointer */
+ RB_RX_UTPP = 0x10,/* 32 bit Rx Upper Threshold, Pause Packet */
+ RB_RX_LTPP = 0x14,/* 32 bit Rx Lower Threshold, Pause Packet */
+ RB_RX_UTHP = 0x18,/* 32 bit Rx Upper Threshold, High Prio */
+ RB_RX_LTHP = 0x1c,/* 32 bit Rx Lower Threshold, High Prio */
+ /* 0x10 - 0x1f: reserved at Tx RAM Buffer Registers */
+ RB_PC = 0x20,/* 32 bit RAM Buffer Packet Counter */
+ RB_LEV = 0x24,/* 32 bit RAM Buffer Level Register */
+ RB_CTRL = 0x28,/* 32 bit RAM Buffer Control Register */
+ RB_TST1 = 0x29,/* 8 bit RAM Buffer Test Register 1 */
+ RB_TST2 = 0x2a,/* 8 bit RAM Buffer Test Register 2 */
+};
+
+/* Receive and Transmit Queues */
+enum {
+ Q_R1 = 0x0000, /* Receive Queue 1 */
+ Q_R2 = 0x0080, /* Receive Queue 2 */
+ Q_XS1 = 0x0200, /* Synchronous Transmit Queue 1 */
+ Q_XA1 = 0x0280, /* Asynchronous Transmit Queue 1 */
+ Q_XS2 = 0x0300, /* Synchronous Transmit Queue 2 */
+ Q_XA2 = 0x0380, /* Asynchronous Transmit Queue 2 */
+};
+
+/* Different PHY Types */
+enum {
+ PHY_ADDR_MARV = 0,
+};
+
+#define RB_ADDR(offs, queue) ((u16) B16_RAM_REGS + (queue) + (offs))
+
+
+enum {
+ LNK_SYNC_INI = 0x0c30,/* 32 bit Link Sync Cnt Init Value */
+ LNK_SYNC_VAL = 0x0c34,/* 32 bit Link Sync Cnt Current Value */
+ LNK_SYNC_CTRL = 0x0c38,/* 8 bit Link Sync Cnt Control Register */
+ LNK_SYNC_TST = 0x0c39,/* 8 bit Link Sync Cnt Test Register */
+
+ LNK_LED_REG = 0x0c3c,/* 8 bit Link LED Register */
+
+/* Receive GMAC FIFO (YUKON and Yukon-2) */
+
+ RX_GMF_EA = 0x0c40,/* 32 bit Rx GMAC FIFO End Address */
+ RX_GMF_AF_THR = 0x0c44,/* 32 bit Rx GMAC FIFO Almost Full Thresh. */
+ RX_GMF_CTRL_T = 0x0c48,/* 32 bit Rx GMAC FIFO Control/Test */
+ RX_GMF_FL_MSK = 0x0c4c,/* 32 bit Rx GMAC FIFO Flush Mask */
+ RX_GMF_FL_THR = 0x0c50,/* 16 bit Rx GMAC FIFO Flush Threshold */
+ RX_GMF_FL_CTRL = 0x0c52,/* 16 bit Rx GMAC FIFO Flush Control */
+ RX_GMF_TR_THR = 0x0c54,/* 32 bit Rx Truncation Threshold (Yukon-2) */
+ RX_GMF_UP_THR = 0x0c58,/* 16 bit Rx Upper Pause Thr (Yukon-EC_U) */
+ RX_GMF_LP_THR = 0x0c5a,/* 16 bit Rx Lower Pause Thr (Yukon-EC_U) */
+ RX_GMF_VLAN = 0x0c5c,/* 32 bit Rx VLAN Type Register (Yukon-2) */
+ RX_GMF_WP = 0x0c60,/* 32 bit Rx GMAC FIFO Write Pointer */
+
+ RX_GMF_WLEV = 0x0c68,/* 32 bit Rx GMAC FIFO Write Level */
+
+ RX_GMF_RP = 0x0c70,/* 32 bit Rx GMAC FIFO Read Pointer */
+
+ RX_GMF_RLEV = 0x0c78,/* 32 bit Rx GMAC FIFO Read Level */
+};
+
+
+/* Q_BC 32 bit Current Byte Counter */
+
+/* BMU Control Status Registers */
+/* B0_R1_CSR 32 bit BMU Ctrl/Stat Rx Queue 1 */
+/* B0_R2_CSR 32 bit BMU Ctrl/Stat Rx Queue 2 */
+/* B0_XA1_CSR 32 bit BMU Ctrl/Stat Sync Tx Queue 1 */
+/* B0_XS1_CSR 32 bit BMU Ctrl/Stat Async Tx Queue 1 */
+/* B0_XA2_CSR 32 bit BMU Ctrl/Stat Sync Tx Queue 2 */
+/* B0_XS2_CSR 32 bit BMU Ctrl/Stat Async Tx Queue 2 */
+/* Q_CSR 32 bit BMU Control/Status Register */
+
+/* Rx BMU Control / Status Registers (Yukon-2) */
+enum {
+ BMU_IDLE = 1<<31, /* BMU Idle State */
+ BMU_RX_TCP_PKT = 1<<30, /* Rx TCP Packet (when RSS Hash enabled) */
+ BMU_RX_IP_PKT = 1<<29, /* Rx IP Packet (when RSS Hash enabled) */
+
+ BMU_ENA_RX_RSS_HASH = 1<<15, /* Enable Rx RSS Hash */
+ BMU_DIS_RX_RSS_HASH = 1<<14, /* Disable Rx RSS Hash */
+ BMU_ENA_RX_CHKSUM = 1<<13, /* Enable Rx TCP/IP Checksum Check */
+ BMU_DIS_RX_CHKSUM = 1<<12, /* Disable Rx TCP/IP Checksum Check */
+ BMU_CLR_IRQ_PAR = 1<<11, /* Clear IRQ on Parity errors (Rx) */
+ BMU_CLR_IRQ_TCP = 1<<11, /* Clear IRQ on TCP segment. error (Tx) */
+ BMU_CLR_IRQ_CHK = 1<<10, /* Clear IRQ Check */
+ BMU_STOP = 1<<9, /* Stop Rx/Tx Queue */
+ BMU_START = 1<<8, /* Start Rx/Tx Queue */
+ BMU_FIFO_OP_ON = 1<<7, /* FIFO Operational On */
+ BMU_FIFO_OP_OFF = 1<<6, /* FIFO Operational Off */
+ BMU_FIFO_ENA = 1<<5, /* Enable FIFO */
+ BMU_FIFO_RST = 1<<4, /* Reset FIFO */
+ BMU_OP_ON = 1<<3, /* BMU Operational On */
+ BMU_OP_OFF = 1<<2, /* BMU Operational Off */
+ BMU_RST_CLR = 1<<1, /* Clear BMU Reset (Enable) */
+ BMU_RST_SET = 1<<0, /* Set BMU Reset */
+
+ BMU_CLR_RESET = BMU_FIFO_RST | BMU_OP_OFF | BMU_RST_CLR,
+ BMU_OPER_INIT = BMU_CLR_IRQ_PAR | BMU_CLR_IRQ_CHK | BMU_START |
+ BMU_FIFO_ENA | BMU_OP_ON,
+
+ BMU_WM_DEFAULT = 0x600,
+ BMU_WM_PEX = 0x80,
+};
+
+/* Tx BMU Control / Status Registers (Yukon-2) */
+ /* Bit 31: same as for Rx */
+enum {
+ BMU_TX_IPIDINCR_ON = 1<<13, /* Enable IP ID Increment */
+ BMU_TX_IPIDINCR_OFF = 1<<12, /* Disable IP ID Increment */
+ BMU_TX_CLR_IRQ_TCP = 1<<11, /* Clear IRQ on TCP segment length mismatch */
+};
+
+/* TBMU_TEST 0x06B8 Transmit BMU Test Register */
+enum {
+ TBMU_TEST_BMU_TX_CHK_AUTO_OFF = 1<<31, /* BMU Tx Checksum Auto Calculation Disable */
+ TBMU_TEST_BMU_TX_CHK_AUTO_ON = 1<<30, /* BMU Tx Checksum Auto Calculation Enable */
+ TBMU_TEST_HOME_ADD_PAD_FIX1_EN = 1<<29, /* Home Address Paddiing FIX1 Enable */
+ TBMU_TEST_HOME_ADD_PAD_FIX1_DIS = 1<<28, /* Home Address Paddiing FIX1 Disable */
+ TBMU_TEST_ROUTING_ADD_FIX_EN = 1<<27, /* Routing Address Fix Enable */
+ TBMU_TEST_ROUTING_ADD_FIX_DIS = 1<<26, /* Routing Address Fix Disable */
+ TBMU_TEST_HOME_ADD_FIX_EN = 1<<25, /* Home address checksum fix enable */
+ TBMU_TEST_HOME_ADD_FIX_DIS = 1<<24, /* Home address checksum fix disable */
+
+ TBMU_TEST_TEST_RSPTR_ON = 1<<22, /* Testmode Shadow Read Ptr On */
+ TBMU_TEST_TEST_RSPTR_OFF = 1<<21, /* Testmode Shadow Read Ptr Off */
+ TBMU_TEST_TESTSTEP_RSPTR = 1<<20, /* Teststep Shadow Read Ptr */
+
+ TBMU_TEST_TEST_RPTR_ON = 1<<18, /* Testmode Read Ptr On */
+ TBMU_TEST_TEST_RPTR_OFF = 1<<17, /* Testmode Read Ptr Off */
+ TBMU_TEST_TESTSTEP_RPTR = 1<<16, /* Teststep Read Ptr */
+
+ TBMU_TEST_TEST_WSPTR_ON = 1<<14, /* Testmode Shadow Write Ptr On */
+ TBMU_TEST_TEST_WSPTR_OFF = 1<<13, /* Testmode Shadow Write Ptr Off */
+ TBMU_TEST_TESTSTEP_WSPTR = 1<<12, /* Teststep Shadow Write Ptr */
+
+ TBMU_TEST_TEST_WPTR_ON = 1<<10, /* Testmode Write Ptr On */
+ TBMU_TEST_TEST_WPTR_OFF = 1<<9, /* Testmode Write Ptr Off */
+ TBMU_TEST_TESTSTEP_WPTR = 1<<8, /* Teststep Write Ptr */
+
+ TBMU_TEST_TEST_REQ_NB_ON = 1<<6, /* Testmode Req Nbytes/Addr On */
+ TBMU_TEST_TEST_REQ_NB_OFF = 1<<5, /* Testmode Req Nbytes/Addr Off */
+ TBMU_TEST_TESTSTEP_REQ_NB = 1<<4, /* Teststep Req Nbytes/Addr */
+
+ TBMU_TEST_TEST_DONE_IDX_ON = 1<<2, /* Testmode Done Index On */
+ TBMU_TEST_TEST_DONE_IDX_OFF = 1<<1, /* Testmode Done Index Off */
+ TBMU_TEST_TESTSTEP_DONE_IDX = 1<<0, /* Teststep Done Index */
+};
+
+/* Queue Prefetch Unit Offsets, use Y2_QADDR() to address (Yukon-2 only)*/
+/* PREF_UNIT_CTRL 32 bit Prefetch Control register */
+enum {
+ PREF_UNIT_OP_ON = 1<<3, /* prefetch unit operational */
+ PREF_UNIT_OP_OFF = 1<<2, /* prefetch unit not operational */
+ PREF_UNIT_RST_CLR = 1<<1, /* Clear Prefetch Unit Reset */
+ PREF_UNIT_RST_SET = 1<<0, /* Set Prefetch Unit Reset */
+};
+
+/* RAM Buffer Register Offsets, use RB_ADDR(Queue, Offs) to access */
+/* RB_START 32 bit RAM Buffer Start Address */
+/* RB_END 32 bit RAM Buffer End Address */
+/* RB_WP 32 bit RAM Buffer Write Pointer */
+/* RB_RP 32 bit RAM Buffer Read Pointer */
+/* RB_RX_UTPP 32 bit Rx Upper Threshold, Pause Pack */
+/* RB_RX_LTPP 32 bit Rx Lower Threshold, Pause Pack */
+/* RB_RX_UTHP 32 bit Rx Upper Threshold, High Prio */
+/* RB_RX_LTHP 32 bit Rx Lower Threshold, High Prio */
+/* RB_PC 32 bit RAM Buffer Packet Counter */
+/* RB_LEV 32 bit RAM Buffer Level Register */
+
+#define RB_MSK 0x0007ffff /* Bit 18.. 0: RAM Buffer Pointer Bits */
+/* RB_TST2 8 bit RAM Buffer Test Register 2 */
+/* RB_TST1 8 bit RAM Buffer Test Register 1 */
+
+/* RB_CTRL 8 bit RAM Buffer Control Register */
+enum {
+ RB_ENA_STFWD = 1<<5, /* Enable Store & Forward */
+ RB_DIS_STFWD = 1<<4, /* Disable Store & Forward */
+ RB_ENA_OP_MD = 1<<3, /* Enable Operation Mode */
+ RB_DIS_OP_MD = 1<<2, /* Disable Operation Mode */
+ RB_RST_CLR = 1<<1, /* Clear RAM Buf STM Reset */
+ RB_RST_SET = 1<<0, /* Set RAM Buf STM Reset */
+};
+
+
+/* Transmit GMAC FIFO (YUKON only) */
+enum {
+ TX_GMF_EA = 0x0d40,/* 32 bit Tx GMAC FIFO End Address */
+ TX_GMF_AE_THR = 0x0d44,/* 32 bit Tx GMAC FIFO Almost Empty Thresh.*/
+ TX_GMF_CTRL_T = 0x0d48,/* 32 bit Tx GMAC FIFO Control/Test */
+
+ TX_GMF_WP = 0x0d60,/* 32 bit Tx GMAC FIFO Write Pointer */
+ TX_GMF_WSP = 0x0d64,/* 32 bit Tx GMAC FIFO Write Shadow Ptr. */
+ TX_GMF_WLEV = 0x0d68,/* 32 bit Tx GMAC FIFO Write Level */
+
+ TX_GMF_RP = 0x0d70,/* 32 bit Tx GMAC FIFO Read Pointer */
+ TX_GMF_RSTP = 0x0d74,/* 32 bit Tx GMAC FIFO Restart Pointer */
+ TX_GMF_RLEV = 0x0d78,/* 32 bit Tx GMAC FIFO Read Level */
+
+ /* Threshold values for Yukon-EC Ultra and Extreme */
+ ECU_AE_THR = 0x0070, /* Almost Empty Threshold */
+ ECU_TXFF_LEV = 0x01a0, /* Tx BMU FIFO Level */
+ ECU_JUMBO_WM = 0x0080, /* Jumbo Mode Watermark */
+};
+
+/* Descriptor Poll Timer Registers */
+enum {
+ B28_DPT_INI = 0x0e00,/* 24 bit Descriptor Poll Timer Init Val */
+ B28_DPT_VAL = 0x0e04,/* 24 bit Descriptor Poll Timer Curr Val */
+ B28_DPT_CTRL = 0x0e08,/* 8 bit Descriptor Poll Timer Ctrl Reg */
+
+ B28_DPT_TST = 0x0e0a,/* 8 bit Descriptor Poll Timer Test Reg */
+};
+
+/* Time Stamp Timer Registers (YUKON only) */
+enum {
+ GMAC_TI_ST_VAL = 0x0e14,/* 32 bit Time Stamp Timer Curr Val */
+ GMAC_TI_ST_CTRL = 0x0e18,/* 8 bit Time Stamp Timer Ctrl Reg */
+ GMAC_TI_ST_TST = 0x0e1a,/* 8 bit Time Stamp Timer Test Reg */
+};
+
+/* Polling Unit Registers (Yukon-2 only) */
+enum {
+ POLL_CTRL = 0x0e20, /* 32 bit Polling Unit Control Reg */
+ POLL_LAST_IDX = 0x0e24,/* 16 bit Polling Unit List Last Index */
+
+ POLL_LIST_ADDR_LO= 0x0e28,/* 32 bit Poll. List Start Addr (low) */
+ POLL_LIST_ADDR_HI= 0x0e2c,/* 32 bit Poll. List Start Addr (high) */
+};
+
+enum {
+ SMB_CFG = 0x0e40, /* 32 bit SMBus Config Register */
+ SMB_CSR = 0x0e44, /* 32 bit SMBus Control/Status Register */
+};
+
+enum {
+ CPU_WDOG = 0x0e48, /* 32 bit Watchdog Register */
+ CPU_CNTR = 0x0e4C, /* 32 bit Counter Register */
+ CPU_TIM = 0x0e50,/* 32 bit Timer Compare Register */
+ CPU_AHB_ADDR = 0x0e54, /* 32 bit CPU AHB Debug Register */
+ CPU_AHB_WDATA = 0x0e58, /* 32 bit CPU AHB Debug Register */
+ CPU_AHB_RDATA = 0x0e5C, /* 32 bit CPU AHB Debug Register */
+ HCU_MAP_BASE = 0x0e60, /* 32 bit Reset Mapping Base */
+ CPU_AHB_CTRL = 0x0e64, /* 32 bit CPU AHB Debug Register */
+ HCU_CCSR = 0x0e68, /* 32 bit CPU Control and Status Register */
+ HCU_HCSR = 0x0e6C, /* 32 bit Host Control and Status Register */
+};
+
+/* ASF Subsystem Registers (Yukon-2 only) */
+enum {
+ B28_Y2_SMB_CONFIG = 0x0e40,/* 32 bit ASF SMBus Config Register */
+ B28_Y2_SMB_CSD_REG = 0x0e44,/* 32 bit ASF SMB Control/Status/Data */
+ B28_Y2_ASF_IRQ_V_BASE=0x0e60,/* 32 bit ASF IRQ Vector Base */
+
+ B28_Y2_ASF_STAT_CMD= 0x0e68,/* 32 bit ASF Status and Command Reg */
+ B28_Y2_ASF_HOST_COM= 0x0e6c,/* 32 bit ASF Host Communication Reg */
+ B28_Y2_DATA_REG_1 = 0x0e70,/* 32 bit ASF/Host Data Register 1 */
+ B28_Y2_DATA_REG_2 = 0x0e74,/* 32 bit ASF/Host Data Register 2 */
+ B28_Y2_DATA_REG_3 = 0x0e78,/* 32 bit ASF/Host Data Register 3 */
+ B28_Y2_DATA_REG_4 = 0x0e7c,/* 32 bit ASF/Host Data Register 4 */
+};
+
+/* Status BMU Registers (Yukon-2 only)*/
+enum {
+ STAT_CTRL = 0x0e80,/* 32 bit Status BMU Control Reg */
+ STAT_LAST_IDX = 0x0e84,/* 16 bit Status BMU Last Index */
+
+ STAT_LIST_ADDR_LO= 0x0e88,/* 32 bit Status List Start Addr (low) */
+ STAT_LIST_ADDR_HI= 0x0e8c,/* 32 bit Status List Start Addr (high) */
+ STAT_TXA1_RIDX = 0x0e90,/* 16 bit Status TxA1 Report Index Reg */
+ STAT_TXS1_RIDX = 0x0e92,/* 16 bit Status TxS1 Report Index Reg */
+ STAT_TXA2_RIDX = 0x0e94,/* 16 bit Status TxA2 Report Index Reg */
+ STAT_TXS2_RIDX = 0x0e96,/* 16 bit Status TxS2 Report Index Reg */
+ STAT_TX_IDX_TH = 0x0e98,/* 16 bit Status Tx Index Threshold Reg */
+ STAT_PUT_IDX = 0x0e9c,/* 16 bit Status Put Index Reg */
+
+/* FIFO Control/Status Registers (Yukon-2 only)*/
+ STAT_FIFO_WP = 0x0ea0,/* 8 bit Status FIFO Write Pointer Reg */
+ STAT_FIFO_RP = 0x0ea4,/* 8 bit Status FIFO Read Pointer Reg */
+ STAT_FIFO_RSP = 0x0ea6,/* 8 bit Status FIFO Read Shadow Ptr */
+ STAT_FIFO_LEVEL = 0x0ea8,/* 8 bit Status FIFO Level Reg */
+ STAT_FIFO_SHLVL = 0x0eaa,/* 8 bit Status FIFO Shadow Level Reg */
+ STAT_FIFO_WM = 0x0eac,/* 8 bit Status FIFO Watermark Reg */
+ STAT_FIFO_ISR_WM= 0x0ead,/* 8 bit Status FIFO ISR Watermark Reg */
+
+/* Level and ISR Timer Registers (Yukon-2 only)*/
+ STAT_LEV_TIMER_INI= 0x0eb0,/* 32 bit Level Timer Init. Value Reg */
+ STAT_LEV_TIMER_CNT= 0x0eb4,/* 32 bit Level Timer Counter Reg */
+ STAT_LEV_TIMER_CTRL= 0x0eb8,/* 8 bit Level Timer Control Reg */
+ STAT_LEV_TIMER_TEST= 0x0eb9,/* 8 bit Level Timer Test Reg */
+ STAT_TX_TIMER_INI = 0x0ec0,/* 32 bit Tx Timer Init. Value Reg */
+ STAT_TX_TIMER_CNT = 0x0ec4,/* 32 bit Tx Timer Counter Reg */
+ STAT_TX_TIMER_CTRL = 0x0ec8,/* 8 bit Tx Timer Control Reg */
+ STAT_TX_TIMER_TEST = 0x0ec9,/* 8 bit Tx Timer Test Reg */
+ STAT_ISR_TIMER_INI = 0x0ed0,/* 32 bit ISR Timer Init. Value Reg */
+ STAT_ISR_TIMER_CNT = 0x0ed4,/* 32 bit ISR Timer Counter Reg */
+ STAT_ISR_TIMER_CTRL= 0x0ed8,/* 8 bit ISR Timer Control Reg */
+ STAT_ISR_TIMER_TEST= 0x0ed9,/* 8 bit ISR Timer Test Reg */
+};
+
+enum {
+ LINKLED_OFF = 0x01,
+ LINKLED_ON = 0x02,
+ LINKLED_LINKSYNC_OFF = 0x04,
+ LINKLED_LINKSYNC_ON = 0x08,
+ LINKLED_BLINK_OFF = 0x10,
+ LINKLED_BLINK_ON = 0x20,
+};
+
+/* GMAC and GPHY Control Registers (YUKON only) */
+enum {
+ GMAC_CTRL = 0x0f00,/* 32 bit GMAC Control Reg */
+ GPHY_CTRL = 0x0f04,/* 32 bit GPHY Control Reg */
+ GMAC_IRQ_SRC = 0x0f08,/* 8 bit GMAC Interrupt Source Reg */
+ GMAC_IRQ_MSK = 0x0f0c,/* 8 bit GMAC Interrupt Mask Reg */
+ GMAC_LINK_CTRL = 0x0f10,/* 16 bit Link Control Reg */
+
+/* Wake-up Frame Pattern Match Control Registers (YUKON only) */
+ WOL_CTRL_STAT = 0x0f20,/* 16 bit WOL Control/Status Reg */
+ WOL_MATCH_CTL = 0x0f22,/* 8 bit WOL Match Control Reg */
+ WOL_MATCH_RES = 0x0f23,/* 8 bit WOL Match Result Reg */
+ WOL_MAC_ADDR = 0x0f24,/* 32 bit WOL MAC Address */
+ WOL_PATT_RPTR = 0x0f2c,/* 8 bit WOL Pattern Read Pointer */
+
+/* WOL Pattern Length Registers (YUKON only) */
+ WOL_PATT_LEN_LO = 0x0f30,/* 32 bit WOL Pattern Length 3..0 */
+ WOL_PATT_LEN_HI = 0x0f34,/* 24 bit WOL Pattern Length 6..4 */
+
+/* WOL Pattern Counter Registers (YUKON only) */
+ WOL_PATT_CNT_0 = 0x0f38,/* 32 bit WOL Pattern Counter 3..0 */
+ WOL_PATT_CNT_4 = 0x0f3c,/* 24 bit WOL Pattern Counter 6..4 */
+};
+#define WOL_REGS(port, x) (x + (port)*0x80)
+
+enum {
+ WOL_PATT_RAM_1 = 0x1000,/* WOL Pattern RAM Link 1 */
+ WOL_PATT_RAM_2 = 0x1400,/* WOL Pattern RAM Link 2 */
+};
+#define WOL_PATT_RAM_BASE(port) (WOL_PATT_RAM_1 + (port)*0x400)
+
+enum {
+ BASE_GMAC_1 = 0x2800,/* GMAC 1 registers */
+ BASE_GMAC_2 = 0x3800,/* GMAC 2 registers */
+};
+
+/*
+ * Marvel-PHY Registers, indirect addressed over GMAC
+ */
+enum {
+ PHY_MARV_CTRL = 0x00,/* 16 bit r/w PHY Control Register */
+ PHY_MARV_STAT = 0x01,/* 16 bit r/o PHY Status Register */
+ PHY_MARV_ID0 = 0x02,/* 16 bit r/o PHY ID0 Register */
+ PHY_MARV_ID1 = 0x03,/* 16 bit r/o PHY ID1 Register */
+ PHY_MARV_AUNE_ADV = 0x04,/* 16 bit r/w Auto-Neg. Advertisement */
+ PHY_MARV_AUNE_LP = 0x05,/* 16 bit r/o Link Part Ability Reg */
+ PHY_MARV_AUNE_EXP = 0x06,/* 16 bit r/o Auto-Neg. Expansion Reg */
+ PHY_MARV_NEPG = 0x07,/* 16 bit r/w Next Page Register */
+ PHY_MARV_NEPG_LP = 0x08,/* 16 bit r/o Next Page Link Partner */
+ /* Marvel-specific registers */
+ PHY_MARV_1000T_CTRL = 0x09,/* 16 bit r/w 1000Base-T Control Reg */
+ PHY_MARV_1000T_STAT = 0x0a,/* 16 bit r/o 1000Base-T Status Reg */
+ PHY_MARV_EXT_STAT = 0x0f,/* 16 bit r/o Extended Status Reg */
+ PHY_MARV_PHY_CTRL = 0x10,/* 16 bit r/w PHY Specific Ctrl Reg */
+ PHY_MARV_PHY_STAT = 0x11,/* 16 bit r/o PHY Specific Stat Reg */
+ PHY_MARV_INT_MASK = 0x12,/* 16 bit r/w Interrupt Mask Reg */
+ PHY_MARV_INT_STAT = 0x13,/* 16 bit r/o Interrupt Status Reg */
+ PHY_MARV_EXT_CTRL = 0x14,/* 16 bit r/w Ext. PHY Specific Ctrl */
+ PHY_MARV_RXE_CNT = 0x15,/* 16 bit r/w Receive Error Counter */
+ PHY_MARV_EXT_ADR = 0x16,/* 16 bit r/w Ext. Ad. for Cable Diag. */
+ PHY_MARV_PORT_IRQ = 0x17,/* 16 bit r/o Port 0 IRQ (88E1111 only) */
+ PHY_MARV_LED_CTRL = 0x18,/* 16 bit r/w LED Control Reg */
+ PHY_MARV_LED_OVER = 0x19,/* 16 bit r/w Manual LED Override Reg */
+ PHY_MARV_EXT_CTRL_2 = 0x1a,/* 16 bit r/w Ext. PHY Specific Ctrl 2 */
+ PHY_MARV_EXT_P_STAT = 0x1b,/* 16 bit r/w Ext. PHY Spec. Stat Reg */
+ PHY_MARV_CABLE_DIAG = 0x1c,/* 16 bit r/o Cable Diagnostic Reg */
+ PHY_MARV_PAGE_ADDR = 0x1d,/* 16 bit r/w Extended Page Address Reg */
+ PHY_MARV_PAGE_DATA = 0x1e,/* 16 bit r/w Extended Page Data Reg */
+
+/* for 10/100 Fast Ethernet PHY (88E3082 only) */
+ PHY_MARV_FE_LED_PAR = 0x16,/* 16 bit r/w LED Parallel Select Reg. */
+ PHY_MARV_FE_LED_SER = 0x17,/* 16 bit r/w LED Stream Select S. LED */
+ PHY_MARV_FE_VCT_TX = 0x1a,/* 16 bit r/w VCT Reg. for TXP/N Pins */
+ PHY_MARV_FE_VCT_RX = 0x1b,/* 16 bit r/o VCT Reg. for RXP/N Pins */
+ PHY_MARV_FE_SPEC_2 = 0x1c,/* 16 bit r/w Specific Control Reg. 2 */
+};
+
+enum {
+ PHY_CT_RESET = 1<<15, /* Bit 15: (sc) clear all PHY related regs */
+ PHY_CT_LOOP = 1<<14, /* Bit 14: enable Loopback over PHY */
+ PHY_CT_SPS_LSB = 1<<13, /* Bit 13: Speed select, lower bit */
+ PHY_CT_ANE = 1<<12, /* Bit 12: Auto-Negotiation Enabled */
+ PHY_CT_PDOWN = 1<<11, /* Bit 11: Power Down Mode */
+ PHY_CT_ISOL = 1<<10, /* Bit 10: Isolate Mode */
+ PHY_CT_RE_CFG = 1<<9, /* Bit 9: (sc) Restart Auto-Negotiation */
+ PHY_CT_DUP_MD = 1<<8, /* Bit 8: Duplex Mode */
+ PHY_CT_COL_TST = 1<<7, /* Bit 7: Collision Test enabled */
+ PHY_CT_SPS_MSB = 1<<6, /* Bit 6: Speed select, upper bit */
+};
+
+enum {
+ PHY_CT_SP1000 = PHY_CT_SPS_MSB, /* enable speed of 1000 Mbps */
+ PHY_CT_SP100 = PHY_CT_SPS_LSB, /* enable speed of 100 Mbps */
+ PHY_CT_SP10 = 0, /* enable speed of 10 Mbps */
+};
+
+enum {
+ PHY_ST_EXT_ST = 1<<8, /* Bit 8: Extended Status Present */
+
+ PHY_ST_PRE_SUP = 1<<6, /* Bit 6: Preamble Suppression */
+ PHY_ST_AN_OVER = 1<<5, /* Bit 5: Auto-Negotiation Over */
+ PHY_ST_REM_FLT = 1<<4, /* Bit 4: Remote Fault Condition Occurred */
+ PHY_ST_AN_CAP = 1<<3, /* Bit 3: Auto-Negotiation Capability */
+ PHY_ST_LSYNC = 1<<2, /* Bit 2: Link Synchronized */
+ PHY_ST_JAB_DET = 1<<1, /* Bit 1: Jabber Detected */
+ PHY_ST_EXT_REG = 1<<0, /* Bit 0: Extended Register available */
+};
+
+enum {
+ PHY_I1_OUI_MSK = 0x3f<<10, /* Bit 15..10: Organization Unique ID */
+ PHY_I1_MOD_NUM = 0x3f<<4, /* Bit 9.. 4: Model Number */
+ PHY_I1_REV_MSK = 0xf, /* Bit 3.. 0: Revision Number */
+};
+
+/* different Marvell PHY Ids */
+enum {
+ PHY_MARV_ID0_VAL= 0x0141, /* Marvell Unique Identifier */
+
+ PHY_BCOM_ID1_A1 = 0x6041,
+ PHY_BCOM_ID1_B2 = 0x6043,
+ PHY_BCOM_ID1_C0 = 0x6044,
+ PHY_BCOM_ID1_C5 = 0x6047,
+
+ PHY_MARV_ID1_B0 = 0x0C23, /* Yukon (PHY 88E1011) */
+ PHY_MARV_ID1_B2 = 0x0C25, /* Yukon-Plus (PHY 88E1011) */
+ PHY_MARV_ID1_C2 = 0x0CC2, /* Yukon-EC (PHY 88E1111) */
+ PHY_MARV_ID1_Y2 = 0x0C91, /* Yukon-2 (PHY 88E1112) */
+ PHY_MARV_ID1_FE = 0x0C83, /* Yukon-FE (PHY 88E3082 Rev.A1) */
+ PHY_MARV_ID1_ECU= 0x0CB0, /* Yukon-ECU (PHY 88E1149 Rev.B2?) */
+};
+
+/* Advertisement register bits */
+enum {
+ PHY_AN_NXT_PG = 1<<15, /* Bit 15: Request Next Page */
+ PHY_AN_ACK = 1<<14, /* Bit 14: (ro) Acknowledge Received */
+ PHY_AN_RF = 1<<13, /* Bit 13: Remote Fault Bits */
+
+ PHY_AN_PAUSE_ASYM = 1<<11,/* Bit 11: Try for asymmetric */
+ PHY_AN_PAUSE_CAP = 1<<10, /* Bit 10: Try for pause */
+ PHY_AN_100BASE4 = 1<<9, /* Bit 9: Try for 100mbps 4k packets */
+ PHY_AN_100FULL = 1<<8, /* Bit 8: Try for 100mbps full-duplex */
+ PHY_AN_100HALF = 1<<7, /* Bit 7: Try for 100mbps half-duplex */
+ PHY_AN_10FULL = 1<<6, /* Bit 6: Try for 10mbps full-duplex */
+ PHY_AN_10HALF = 1<<5, /* Bit 5: Try for 10mbps half-duplex */
+ PHY_AN_CSMA = 1<<0, /* Bit 0: Only selector supported */
+ PHY_AN_SEL = 0x1f, /* Bit 4..0: Selector Field, 00001=Ethernet*/
+ PHY_AN_FULL = PHY_AN_100FULL | PHY_AN_10FULL | PHY_AN_CSMA,
+ PHY_AN_ALL = PHY_AN_10HALF | PHY_AN_10FULL |
+ PHY_AN_100HALF | PHY_AN_100FULL,
+};
+
+/***** PHY_BCOM_1000T_STAT 16 bit r/o 1000Base-T Status Reg *****/
+/***** PHY_MARV_1000T_STAT 16 bit r/o 1000Base-T Status Reg *****/
+enum {
+ PHY_B_1000S_MSF = 1<<15, /* Bit 15: Master/Slave Fault */
+ PHY_B_1000S_MSR = 1<<14, /* Bit 14: Master/Slave Result */
+ PHY_B_1000S_LRS = 1<<13, /* Bit 13: Local Receiver Status */
+ PHY_B_1000S_RRS = 1<<12, /* Bit 12: Remote Receiver Status */
+ PHY_B_1000S_LP_FD = 1<<11, /* Bit 11: Link Partner can FD */
+ PHY_B_1000S_LP_HD = 1<<10, /* Bit 10: Link Partner can HD */
+ /* Bit 9..8: reserved */
+ PHY_B_1000S_IEC = 0xff, /* Bit 7..0: Idle Error Count */
+};
+
+/** Marvell-Specific */
+enum {
+ PHY_M_AN_NXT_PG = 1<<15, /* Request Next Page */
+ PHY_M_AN_ACK = 1<<14, /* (ro) Acknowledge Received */
+ PHY_M_AN_RF = 1<<13, /* Remote Fault */
+
+ PHY_M_AN_ASP = 1<<11, /* Asymmetric Pause */
+ PHY_M_AN_PC = 1<<10, /* MAC Pause implemented */
+ PHY_M_AN_100_T4 = 1<<9, /* Not cap. 100Base-T4 (always 0) */
+ PHY_M_AN_100_FD = 1<<8, /* Advertise 100Base-TX Full Duplex */
+ PHY_M_AN_100_HD = 1<<7, /* Advertise 100Base-TX Half Duplex */
+ PHY_M_AN_10_FD = 1<<6, /* Advertise 10Base-TX Full Duplex */
+ PHY_M_AN_10_HD = 1<<5, /* Advertise 10Base-TX Half Duplex */
+ PHY_M_AN_SEL_MSK =0x1f<<4, /* Bit 4.. 0: Selector Field Mask */
+};
+
+/* special defines for FIBER (88E1011S only) */
+enum {
+ PHY_M_AN_ASP_X = 1<<8, /* Asymmetric Pause */
+ PHY_M_AN_PC_X = 1<<7, /* MAC Pause implemented */
+ PHY_M_AN_1000X_AHD = 1<<6, /* Advertise 10000Base-X Half Duplex */
+ PHY_M_AN_1000X_AFD = 1<<5, /* Advertise 10000Base-X Full Duplex */
+};
+
+/* Pause Bits (PHY_M_AN_ASP_X and PHY_M_AN_PC_X) encoding */
+enum {
+ PHY_M_P_NO_PAUSE_X = 0<<7,/* Bit 8.. 7: no Pause Mode */
+ PHY_M_P_SYM_MD_X = 1<<7, /* Bit 8.. 7: symmetric Pause Mode */
+ PHY_M_P_ASYM_MD_X = 2<<7,/* Bit 8.. 7: asymmetric Pause Mode */
+ PHY_M_P_BOTH_MD_X = 3<<7,/* Bit 8.. 7: both Pause Mode */
+};
+
+/***** PHY_MARV_1000T_CTRL 16 bit r/w 1000Base-T Control Reg *****/
+enum {
+ PHY_M_1000C_TEST = 7<<13,/* Bit 15..13: Test Modes */
+ PHY_M_1000C_MSE = 1<<12, /* Manual Master/Slave Enable */
+ PHY_M_1000C_MSC = 1<<11, /* M/S Configuration (1=Master) */
+ PHY_M_1000C_MPD = 1<<10, /* Multi-Port Device */
+ PHY_M_1000C_AFD = 1<<9, /* Advertise Full Duplex */
+ PHY_M_1000C_AHD = 1<<8, /* Advertise Half Duplex */
+};
+
+/***** PHY_MARV_PHY_CTRL 16 bit r/w PHY Specific Ctrl Reg *****/
+enum {
+ PHY_M_PC_TX_FFD_MSK = 3<<14,/* Bit 15..14: Tx FIFO Depth Mask */
+ PHY_M_PC_RX_FFD_MSK = 3<<12,/* Bit 13..12: Rx FIFO Depth Mask */
+ PHY_M_PC_ASS_CRS_TX = 1<<11, /* Assert CRS on Transmit */
+ PHY_M_PC_FL_GOOD = 1<<10, /* Force Link Good */
+ PHY_M_PC_EN_DET_MSK = 3<<8,/* Bit 9.. 8: Energy Detect Mask */
+ PHY_M_PC_ENA_EXT_D = 1<<7, /* Enable Ext. Distance (10BT) */
+ PHY_M_PC_MDIX_MSK = 3<<5,/* Bit 6.. 5: MDI/MDIX Config. Mask */
+ PHY_M_PC_DIS_125CLK = 1<<4, /* Disable 125 CLK */
+ PHY_M_PC_MAC_POW_UP = 1<<3, /* MAC Power up */
+ PHY_M_PC_SQE_T_ENA = 1<<2, /* SQE Test Enabled */
+ PHY_M_PC_POL_R_DIS = 1<<1, /* Polarity Reversal Disabled */
+ PHY_M_PC_DIS_JABBER = 1<<0, /* Disable Jabber */
+};
+
+enum {
+ PHY_M_PC_EN_DET = 2<<8, /* Energy Detect (Mode 1) */
+ PHY_M_PC_EN_DET_PLUS = 3<<8, /* Energy Detect Plus (Mode 2) */
+};
+
+#define PHY_M_PC_MDI_XMODE(x) (((u16)(x)<<5) & PHY_M_PC_MDIX_MSK)
+
+enum {
+ PHY_M_PC_MAN_MDI = 0, /* 00 = Manual MDI configuration */
+ PHY_M_PC_MAN_MDIX = 1, /* 01 = Manual MDIX configuration */
+ PHY_M_PC_ENA_AUTO = 3, /* 11 = Enable Automatic Crossover */
+};
+
+/* for Yukon-EC Ultra Gigabit Ethernet PHY (88E1149 only) */
+enum {
+ PHY_M_PC_COP_TX_DIS = 1<<3, /* Copper Transmitter Disable */
+ PHY_M_PC_POW_D_ENA = 1<<2, /* Power Down Enable */
+};
+
+/* for 10/100 Fast Ethernet PHY (88E3082 only) */
+enum {
+ PHY_M_PC_ENA_DTE_DT = 1<<15, /* Enable Data Terminal Equ. (DTE) Detect */
+ PHY_M_PC_ENA_ENE_DT = 1<<14, /* Enable Energy Detect (sense & pulse) */
+ PHY_M_PC_DIS_NLP_CK = 1<<13, /* Disable Normal Link Puls (NLP) Check */
+ PHY_M_PC_ENA_LIP_NP = 1<<12, /* Enable Link Partner Next Page Reg. */
+ PHY_M_PC_DIS_NLP_GN = 1<<11, /* Disable Normal Link Puls Generation */
+
+ PHY_M_PC_DIS_SCRAMB = 1<<9, /* Disable Scrambler */
+ PHY_M_PC_DIS_FEFI = 1<<8, /* Disable Far End Fault Indic. (FEFI) */
+
+ PHY_M_PC_SH_TP_SEL = 1<<6, /* Shielded Twisted Pair Select */
+ PHY_M_PC_RX_FD_MSK = 3<<2,/* Bit 3.. 2: Rx FIFO Depth Mask */
+};
+
+/***** PHY_MARV_PHY_STAT 16 bit r/o PHY Specific Status Reg *****/
+enum {
+ PHY_M_PS_SPEED_MSK = 3<<14, /* Bit 15..14: Speed Mask */
+ PHY_M_PS_SPEED_1000 = 1<<15, /* 10 = 1000 Mbps */
+ PHY_M_PS_SPEED_100 = 1<<14, /* 01 = 100 Mbps */
+ PHY_M_PS_SPEED_10 = 0, /* 00 = 10 Mbps */
+ PHY_M_PS_FULL_DUP = 1<<13, /* Full Duplex */
+ PHY_M_PS_PAGE_REC = 1<<12, /* Page Received */
+ PHY_M_PS_SPDUP_RES = 1<<11, /* Speed & Duplex Resolved */
+ PHY_M_PS_LINK_UP = 1<<10, /* Link Up */
+ PHY_M_PS_CABLE_MSK = 7<<7, /* Bit 9.. 7: Cable Length Mask */
+ PHY_M_PS_MDI_X_STAT = 1<<6, /* MDI Crossover Stat (1=MDIX) */
+ PHY_M_PS_DOWNS_STAT = 1<<5, /* Downshift Status (1=downsh.) */
+ PHY_M_PS_ENDET_STAT = 1<<4, /* Energy Detect Status (1=act) */
+ PHY_M_PS_TX_P_EN = 1<<3, /* Tx Pause Enabled */
+ PHY_M_PS_RX_P_EN = 1<<2, /* Rx Pause Enabled */
+ PHY_M_PS_POL_REV = 1<<1, /* Polarity Reversed */
+ PHY_M_PS_JABBER = 1<<0, /* Jabber */
+};
+
+#define PHY_M_PS_PAUSE_MSK (PHY_M_PS_TX_P_EN | PHY_M_PS_RX_P_EN)
+
+/* for 10/100 Fast Ethernet PHY (88E3082 only) */
+enum {
+ PHY_M_PS_DTE_DETECT = 1<<15, /* Data Terminal Equipment (DTE) Detected */
+ PHY_M_PS_RES_SPEED = 1<<14, /* Resolved Speed (1=100 Mbps, 0=10 Mbps */
+};
+
+enum {
+ PHY_M_IS_AN_ERROR = 1<<15, /* Auto-Negotiation Error */
+ PHY_M_IS_LSP_CHANGE = 1<<14, /* Link Speed Changed */
+ PHY_M_IS_DUP_CHANGE = 1<<13, /* Duplex Mode Changed */
+ PHY_M_IS_AN_PR = 1<<12, /* Page Received */
+ PHY_M_IS_AN_COMPL = 1<<11, /* Auto-Negotiation Completed */
+ PHY_M_IS_LST_CHANGE = 1<<10, /* Link Status Changed */
+ PHY_M_IS_SYMB_ERROR = 1<<9, /* Symbol Error */
+ PHY_M_IS_FALSE_CARR = 1<<8, /* False Carrier */
+ PHY_M_IS_FIFO_ERROR = 1<<7, /* FIFO Overflow/Underrun Error */
+ PHY_M_IS_MDI_CHANGE = 1<<6, /* MDI Crossover Changed */
+ PHY_M_IS_DOWNSH_DET = 1<<5, /* Downshift Detected */
+ PHY_M_IS_END_CHANGE = 1<<4, /* Energy Detect Changed */
+
+ PHY_M_IS_DTE_CHANGE = 1<<2, /* DTE Power Det. Status Changed */
+ PHY_M_IS_POL_CHANGE = 1<<1, /* Polarity Changed */
+ PHY_M_IS_JABBER = 1<<0, /* Jabber */
+
+ PHY_M_DEF_MSK = PHY_M_IS_LSP_CHANGE | PHY_M_IS_LST_CHANGE
+ | PHY_M_IS_DUP_CHANGE,
+ PHY_M_AN_MSK = PHY_M_IS_AN_ERROR | PHY_M_IS_AN_COMPL,
+};
+
+
+/***** PHY_MARV_EXT_CTRL 16 bit r/w Ext. PHY Specific Ctrl *****/
+enum {
+ PHY_M_EC_ENA_BC_EXT = 1<<15, /* Enable Block Carr. Ext. (88E1111 only) */
+ PHY_M_EC_ENA_LIN_LB = 1<<14, /* Enable Line Loopback (88E1111 only) */
+
+ PHY_M_EC_DIS_LINK_P = 1<<12, /* Disable Link Pulses (88E1111 only) */
+ PHY_M_EC_M_DSC_MSK = 3<<10, /* Bit 11..10: Master Downshift Counter */
+ /* (88E1011 only) */
+ PHY_M_EC_S_DSC_MSK = 3<<8,/* Bit 9.. 8: Slave Downshift Counter */
+ /* (88E1011 only) */
+ PHY_M_EC_M_DSC_MSK2 = 7<<9,/* Bit 11.. 9: Master Downshift Counter */
+ /* (88E1111 only) */
+ PHY_M_EC_DOWN_S_ENA = 1<<8, /* Downshift Enable (88E1111 only) */
+ /* !!! Errata in spec. (1 = disable) */
+ PHY_M_EC_RX_TIM_CT = 1<<7, /* RGMII Rx Timing Control*/
+ PHY_M_EC_MAC_S_MSK = 7<<4,/* Bit 6.. 4: Def. MAC interface speed */
+ PHY_M_EC_FIB_AN_ENA = 1<<3, /* Fiber Auto-Neg. Enable (88E1011S only) */
+ PHY_M_EC_DTE_D_ENA = 1<<2, /* DTE Detect Enable (88E1111 only) */
+ PHY_M_EC_TX_TIM_CT = 1<<1, /* RGMII Tx Timing Control */
+ PHY_M_EC_TRANS_DIS = 1<<0, /* Transmitter Disable (88E1111 only) */
+
+ PHY_M_10B_TE_ENABLE = 1<<7, /* 10Base-Te Enable (88E8079 and above) */
+};
+#define PHY_M_EC_M_DSC(x) ((u16)(x)<<10 & PHY_M_EC_M_DSC_MSK)
+ /* 00=1x; 01=2x; 10=3x; 11=4x */
+#define PHY_M_EC_S_DSC(x) ((u16)(x)<<8 & PHY_M_EC_S_DSC_MSK)
+ /* 00=dis; 01=1x; 10=2x; 11=3x */
+#define PHY_M_EC_DSC_2(x) ((u16)(x)<<9 & PHY_M_EC_M_DSC_MSK2)
+ /* 000=1x; 001=2x; 010=3x; 011=4x */
+#define PHY_M_EC_MAC_S(x) ((u16)(x)<<4 & PHY_M_EC_MAC_S_MSK)
+ /* 01X=0; 110=2.5; 111=25 (MHz) */
+
+/* for Yukon-2 Gigabit Ethernet PHY (88E1112 only) */
+enum {
+ PHY_M_PC_DIS_LINK_Pa = 1<<15,/* Disable Link Pulses */
+ PHY_M_PC_DSC_MSK = 7<<12,/* Bit 14..12: Downshift Counter */
+ PHY_M_PC_DOWN_S_ENA = 1<<11,/* Downshift Enable */
+};
+/* !!! Errata in spec. (1 = disable) */
+
+#define PHY_M_PC_DSC(x) (((u16)(x)<<12) & PHY_M_PC_DSC_MSK)
+ /* 100=5x; 101=6x; 110=7x; 111=8x */
+enum {
+ MAC_TX_CLK_0_MHZ = 2,
+ MAC_TX_CLK_2_5_MHZ = 6,
+ MAC_TX_CLK_25_MHZ = 7,
+};
+
+/***** PHY_MARV_LED_CTRL 16 bit r/w LED Control Reg *****/
+enum {
+ PHY_M_LEDC_DIS_LED = 1<<15, /* Disable LED */
+ PHY_M_LEDC_PULS_MSK = 7<<12,/* Bit 14..12: Pulse Stretch Mask */
+ PHY_M_LEDC_F_INT = 1<<11, /* Force Interrupt */
+ PHY_M_LEDC_BL_R_MSK = 7<<8,/* Bit 10.. 8: Blink Rate Mask */
+ PHY_M_LEDC_DP_C_LSB = 1<<7, /* Duplex Control (LSB, 88E1111 only) */
+ PHY_M_LEDC_TX_C_LSB = 1<<6, /* Tx Control (LSB, 88E1111 only) */
+ PHY_M_LEDC_LK_C_MSK = 7<<3,/* Bit 5.. 3: Link Control Mask */
+ /* (88E1111 only) */
+};
+
+enum {
+ PHY_M_LEDC_LINK_MSK = 3<<3,/* Bit 4.. 3: Link Control Mask */
+ /* (88E1011 only) */
+ PHY_M_LEDC_DP_CTRL = 1<<2, /* Duplex Control */
+ PHY_M_LEDC_DP_C_MSB = 1<<2, /* Duplex Control (MSB, 88E1111 only) */
+ PHY_M_LEDC_RX_CTRL = 1<<1, /* Rx Activity / Link */
+ PHY_M_LEDC_TX_CTRL = 1<<0, /* Tx Activity / Link */
+ PHY_M_LEDC_TX_C_MSB = 1<<0, /* Tx Control (MSB, 88E1111 only) */
+};
+
+#define PHY_M_LED_PULS_DUR(x) (((u16)(x)<<12) & PHY_M_LEDC_PULS_MSK)
+
+/***** PHY_MARV_PHY_STAT (page 3)16 bit r/w Polarity Control Reg. *****/
+enum {
+ PHY_M_POLC_LS1M_MSK = 0xf<<12, /* Bit 15..12: LOS,STAT1 Mix % Mask */
+ PHY_M_POLC_IS0M_MSK = 0xf<<8, /* Bit 11.. 8: INIT,STAT0 Mix % Mask */
+ PHY_M_POLC_LOS_MSK = 0x3<<6, /* Bit 7.. 6: LOS Pol. Ctrl. Mask */
+ PHY_M_POLC_INIT_MSK = 0x3<<4, /* Bit 5.. 4: INIT Pol. Ctrl. Mask */
+ PHY_M_POLC_STA1_MSK = 0x3<<2, /* Bit 3.. 2: STAT1 Pol. Ctrl. Mask */
+ PHY_M_POLC_STA0_MSK = 0x3, /* Bit 1.. 0: STAT0 Pol. Ctrl. Mask */
+};
+
+#define PHY_M_POLC_LS1_P_MIX(x) (((x)<<12) & PHY_M_POLC_LS1M_MSK)
+#define PHY_M_POLC_IS0_P_MIX(x) (((x)<<8) & PHY_M_POLC_IS0M_MSK)
+#define PHY_M_POLC_LOS_CTRL(x) (((x)<<6) & PHY_M_POLC_LOS_MSK)
+#define PHY_M_POLC_INIT_CTRL(x) (((x)<<4) & PHY_M_POLC_INIT_MSK)
+#define PHY_M_POLC_STA1_CTRL(x) (((x)<<2) & PHY_M_POLC_STA1_MSK)
+#define PHY_M_POLC_STA0_CTRL(x) (((x)<<0) & PHY_M_POLC_STA0_MSK)
+
+enum {
+ PULS_NO_STR = 0,/* no pulse stretching */
+ PULS_21MS = 1,/* 21 ms to 42 ms */
+ PULS_42MS = 2,/* 42 ms to 84 ms */
+ PULS_84MS = 3,/* 84 ms to 170 ms */
+ PULS_170MS = 4,/* 170 ms to 340 ms */
+ PULS_340MS = 5,/* 340 ms to 670 ms */
+ PULS_670MS = 6,/* 670 ms to 1.3 s */
+ PULS_1300MS = 7,/* 1.3 s to 2.7 s */
+};
+
+#define PHY_M_LED_BLINK_RT(x) (((u16)(x)<<8) & PHY_M_LEDC_BL_R_MSK)
+
+enum {
+ BLINK_42MS = 0,/* 42 ms */
+ BLINK_84MS = 1,/* 84 ms */
+ BLINK_170MS = 2,/* 170 ms */
+ BLINK_340MS = 3,/* 340 ms */
+ BLINK_670MS = 4,/* 670 ms */
+};
+
+/***** PHY_MARV_LED_OVER 16 bit r/w Manual LED Override Reg *****/
+#define PHY_M_LED_MO_SGMII(x) ((x)<<14) /* Bit 15..14: SGMII AN Timer */
+
+#define PHY_M_LED_MO_DUP(x) ((x)<<10) /* Bit 11..10: Duplex */
+#define PHY_M_LED_MO_10(x) ((x)<<8) /* Bit 9.. 8: Link 10 */
+#define PHY_M_LED_MO_100(x) ((x)<<6) /* Bit 7.. 6: Link 100 */
+#define PHY_M_LED_MO_1000(x) ((x)<<4) /* Bit 5.. 4: Link 1000 */
+#define PHY_M_LED_MO_RX(x) ((x)<<2) /* Bit 3.. 2: Rx */
+#define PHY_M_LED_MO_TX(x) ((x)<<0) /* Bit 1.. 0: Tx */
+
+enum led_mode {
+ MO_LED_NORM = 0,
+ MO_LED_BLINK = 1,
+ MO_LED_OFF = 2,
+ MO_LED_ON = 3,
+};
+
+/***** PHY_MARV_EXT_CTRL_2 16 bit r/w Ext. PHY Specific Ctrl 2 *****/
+enum {
+ PHY_M_EC2_FI_IMPED = 1<<6, /* Fiber Input Impedance */
+ PHY_M_EC2_FO_IMPED = 1<<5, /* Fiber Output Impedance */
+ PHY_M_EC2_FO_M_CLK = 1<<4, /* Fiber Mode Clock Enable */
+ PHY_M_EC2_FO_BOOST = 1<<3, /* Fiber Output Boost */
+ PHY_M_EC2_FO_AM_MSK = 7,/* Bit 2.. 0: Fiber Output Amplitude */
+};
+
+/***** PHY_MARV_EXT_P_STAT 16 bit r/w Ext. PHY Specific Status *****/
+enum {
+ PHY_M_FC_AUTO_SEL = 1<<15, /* Fiber/Copper Auto Sel. Dis. */
+ PHY_M_FC_AN_REG_ACC = 1<<14, /* Fiber/Copper AN Reg. Access */
+ PHY_M_FC_RESOLUTION = 1<<13, /* Fiber/Copper Resolution */
+ PHY_M_SER_IF_AN_BP = 1<<12, /* Ser. IF AN Bypass Enable */
+ PHY_M_SER_IF_BP_ST = 1<<11, /* Ser. IF AN Bypass Status */
+ PHY_M_IRQ_POLARITY = 1<<10, /* IRQ polarity */
+ PHY_M_DIS_AUT_MED = 1<<9, /* Disable Aut. Medium Reg. Selection */
+ /* (88E1111 only) */
+
+ PHY_M_UNDOC1 = 1<<7, /* undocumented bit !! */
+ PHY_M_DTE_POW_STAT = 1<<4, /* DTE Power Status (88E1111 only) */
+ PHY_M_MODE_MASK = 0xf, /* Bit 3.. 0: copy of HWCFG MODE[3:0] */
+};
+
+/* for 10/100 Fast Ethernet PHY (88E3082 only) */
+/***** PHY_MARV_FE_LED_PAR 16 bit r/w LED Parallel Select Reg. *****/
+ /* Bit 15..12: reserved (used internally) */
+enum {
+ PHY_M_FELP_LED2_MSK = 0xf<<8, /* Bit 11.. 8: LED2 Mask (LINK) */
+ PHY_M_FELP_LED1_MSK = 0xf<<4, /* Bit 7.. 4: LED1 Mask (ACT) */
+ PHY_M_FELP_LED0_MSK = 0xf, /* Bit 3.. 0: LED0 Mask (SPEED) */
+};
+
+#define PHY_M_FELP_LED2_CTRL(x) (((u16)(x)<<8) & PHY_M_FELP_LED2_MSK)
+#define PHY_M_FELP_LED1_CTRL(x) (((u16)(x)<<4) & PHY_M_FELP_LED1_MSK)
+#define PHY_M_FELP_LED0_CTRL(x) (((u16)(x)<<0) & PHY_M_FELP_LED0_MSK)
+
+enum {
+ LED_PAR_CTRL_COLX = 0x00,
+ LED_PAR_CTRL_ERROR = 0x01,
+ LED_PAR_CTRL_DUPLEX = 0x02,
+ LED_PAR_CTRL_DP_COL = 0x03,
+ LED_PAR_CTRL_SPEED = 0x04,
+ LED_PAR_CTRL_LINK = 0x05,
+ LED_PAR_CTRL_TX = 0x06,
+ LED_PAR_CTRL_RX = 0x07,
+ LED_PAR_CTRL_ACT = 0x08,
+ LED_PAR_CTRL_LNK_RX = 0x09,
+ LED_PAR_CTRL_LNK_AC = 0x0a,
+ LED_PAR_CTRL_ACT_BL = 0x0b,
+ LED_PAR_CTRL_TX_BL = 0x0c,
+ LED_PAR_CTRL_RX_BL = 0x0d,
+ LED_PAR_CTRL_COL_BL = 0x0e,
+ LED_PAR_CTRL_INACT = 0x0f
+};
+
+/*****,PHY_MARV_FE_SPEC_2 16 bit r/w Specific Control Reg. 2 *****/
+enum {
+ PHY_M_FESC_DIS_WAIT = 1<<2, /* Disable TDR Waiting Period */
+ PHY_M_FESC_ENA_MCLK = 1<<1, /* Enable MAC Rx Clock in sleep mode */
+ PHY_M_FESC_SEL_CL_A = 1<<0, /* Select Class A driver (100B-TX) */
+};
+
+/* for Yukon-2 Gigabit Ethernet PHY (88E1112 only) */
+/***** PHY_MARV_PHY_CTRL (page 1) 16 bit r/w Fiber Specific Ctrl *****/
+enum {
+ PHY_M_FIB_FORCE_LNK = 1<<10,/* Force Link Good */
+ PHY_M_FIB_SIGD_POL = 1<<9, /* SIGDET Polarity */
+ PHY_M_FIB_TX_DIS = 1<<3, /* Transmitter Disable */
+};
+
+/* for Yukon-2 Gigabit Ethernet PHY (88E1112 only) */
+/***** PHY_MARV_PHY_CTRL (page 2) 16 bit r/w MAC Specific Ctrl *****/
+enum {
+ PHY_M_MAC_MD_MSK = 7<<7, /* Bit 9.. 7: Mode Select Mask */
+ PHY_M_MAC_GMIF_PUP = 1<<3, /* GMII Power Up (88E1149 only) */
+ PHY_M_MAC_MD_AUTO = 3,/* Auto Copper/1000Base-X */
+ PHY_M_MAC_MD_COPPER = 5,/* Copper only */
+ PHY_M_MAC_MD_1000BX = 7,/* 1000Base-X only */
+};
+#define PHY_M_MAC_MODE_SEL(x) (((x)<<7) & PHY_M_MAC_MD_MSK)
+
+/***** PHY_MARV_PHY_CTRL (page 3) 16 bit r/w LED Control Reg. *****/
+enum {
+ PHY_M_LEDC_LOS_MSK = 0xf<<12,/* Bit 15..12: LOS LED Ctrl. Mask */
+ PHY_M_LEDC_INIT_MSK = 0xf<<8, /* Bit 11.. 8: INIT LED Ctrl. Mask */
+ PHY_M_LEDC_STA1_MSK = 0xf<<4,/* Bit 7.. 4: STAT1 LED Ctrl. Mask */
+ PHY_M_LEDC_STA0_MSK = 0xf, /* Bit 3.. 0: STAT0 LED Ctrl. Mask */
+};
+
+#define PHY_M_LEDC_LOS_CTRL(x) (((x)<<12) & PHY_M_LEDC_LOS_MSK)
+#define PHY_M_LEDC_INIT_CTRL(x) (((x)<<8) & PHY_M_LEDC_INIT_MSK)
+#define PHY_M_LEDC_STA1_CTRL(x) (((x)<<4) & PHY_M_LEDC_STA1_MSK)
+#define PHY_M_LEDC_STA0_CTRL(x) (((x)<<0) & PHY_M_LEDC_STA0_MSK)
+
+/* GMAC registers */
+/* Port Registers */
+enum {
+ GM_GP_STAT = 0x0000, /* 16 bit r/o General Purpose Status */
+ GM_GP_CTRL = 0x0004, /* 16 bit r/w General Purpose Control */
+ GM_TX_CTRL = 0x0008, /* 16 bit r/w Transmit Control Reg. */
+ GM_RX_CTRL = 0x000c, /* 16 bit r/w Receive Control Reg. */
+ GM_TX_FLOW_CTRL = 0x0010, /* 16 bit r/w Transmit Flow-Control */
+ GM_TX_PARAM = 0x0014, /* 16 bit r/w Transmit Parameter Reg. */
+ GM_SERIAL_MODE = 0x0018, /* 16 bit r/w Serial Mode Register */
+/* Source Address Registers */
+ GM_SRC_ADDR_1L = 0x001c, /* 16 bit r/w Source Address 1 (low) */
+ GM_SRC_ADDR_1M = 0x0020, /* 16 bit r/w Source Address 1 (middle) */
+ GM_SRC_ADDR_1H = 0x0024, /* 16 bit r/w Source Address 1 (high) */
+ GM_SRC_ADDR_2L = 0x0028, /* 16 bit r/w Source Address 2 (low) */
+ GM_SRC_ADDR_2M = 0x002c, /* 16 bit r/w Source Address 2 (middle) */
+ GM_SRC_ADDR_2H = 0x0030, /* 16 bit r/w Source Address 2 (high) */
+
+/* Multicast Address Hash Registers */
+ GM_MC_ADDR_H1 = 0x0034, /* 16 bit r/w Multicast Address Hash 1 */
+ GM_MC_ADDR_H2 = 0x0038, /* 16 bit r/w Multicast Address Hash 2 */
+ GM_MC_ADDR_H3 = 0x003c, /* 16 bit r/w Multicast Address Hash 3 */
+ GM_MC_ADDR_H4 = 0x0040, /* 16 bit r/w Multicast Address Hash 4 */
+
+/* Interrupt Source Registers */
+ GM_TX_IRQ_SRC = 0x0044, /* 16 bit r/o Tx Overflow IRQ Source */
+ GM_RX_IRQ_SRC = 0x0048, /* 16 bit r/o Rx Overflow IRQ Source */
+ GM_TR_IRQ_SRC = 0x004c, /* 16 bit r/o Tx/Rx Over. IRQ Source */
+
+/* Interrupt Mask Registers */
+ GM_TX_IRQ_MSK = 0x0050, /* 16 bit r/w Tx Overflow IRQ Mask */
+ GM_RX_IRQ_MSK = 0x0054, /* 16 bit r/w Rx Overflow IRQ Mask */
+ GM_TR_IRQ_MSK = 0x0058, /* 16 bit r/w Tx/Rx Over. IRQ Mask */
+
+/* Serial Management Interface (SMI) Registers */
+ GM_SMI_CTRL = 0x0080, /* 16 bit r/w SMI Control Register */
+ GM_SMI_DATA = 0x0084, /* 16 bit r/w SMI Data Register */
+ GM_PHY_ADDR = 0x0088, /* 16 bit r/w GPHY Address Register */
+/* MIB Counters */
+ GM_MIB_CNT_BASE = 0x0100, /* Base Address of MIB Counters */
+ GM_MIB_CNT_END = 0x025C, /* Last MIB counter */
+};
+
+
+/*
+ * MIB Counters base address definitions (low word) -
+ * use offset 4 for access to high word (32 bit r/o)
+ */
+enum {
+ GM_RXF_UC_OK = GM_MIB_CNT_BASE + 0, /* Unicast Frames Received OK */
+ GM_RXF_BC_OK = GM_MIB_CNT_BASE + 8, /* Broadcast Frames Received OK */
+ GM_RXF_MPAUSE = GM_MIB_CNT_BASE + 16, /* Pause MAC Ctrl Frames Received */
+ GM_RXF_MC_OK = GM_MIB_CNT_BASE + 24, /* Multicast Frames Received OK */
+ GM_RXF_FCS_ERR = GM_MIB_CNT_BASE + 32, /* Rx Frame Check Seq. Error */
+
+ GM_RXO_OK_LO = GM_MIB_CNT_BASE + 48, /* Octets Received OK Low */
+ GM_RXO_OK_HI = GM_MIB_CNT_BASE + 56, /* Octets Received OK High */
+ GM_RXO_ERR_LO = GM_MIB_CNT_BASE + 64, /* Octets Received Invalid Low */
+ GM_RXO_ERR_HI = GM_MIB_CNT_BASE + 72, /* Octets Received Invalid High */
+ GM_RXF_SHT = GM_MIB_CNT_BASE + 80, /* Frames <64 Byte Received OK */
+ GM_RXE_FRAG = GM_MIB_CNT_BASE + 88, /* Frames <64 Byte Received with FCS Err */
+ GM_RXF_64B = GM_MIB_CNT_BASE + 96, /* 64 Byte Rx Frame */
+ GM_RXF_127B = GM_MIB_CNT_BASE + 104,/* 65-127 Byte Rx Frame */
+ GM_RXF_255B = GM_MIB_CNT_BASE + 112,/* 128-255 Byte Rx Frame */
+ GM_RXF_511B = GM_MIB_CNT_BASE + 120,/* 256-511 Byte Rx Frame */
+ GM_RXF_1023B = GM_MIB_CNT_BASE + 128,/* 512-1023 Byte Rx Frame */
+ GM_RXF_1518B = GM_MIB_CNT_BASE + 136,/* 1024-1518 Byte Rx Frame */
+ GM_RXF_MAX_SZ = GM_MIB_CNT_BASE + 144,/* 1519-MaxSize Byte Rx Frame */
+ GM_RXF_LNG_ERR = GM_MIB_CNT_BASE + 152,/* Rx Frame too Long Error */
+ GM_RXF_JAB_PKT = GM_MIB_CNT_BASE + 160,/* Rx Jabber Packet Frame */
+
+ GM_RXE_FIFO_OV = GM_MIB_CNT_BASE + 176,/* Rx FIFO overflow Event */
+ GM_TXF_UC_OK = GM_MIB_CNT_BASE + 192,/* Unicast Frames Xmitted OK */
+ GM_TXF_BC_OK = GM_MIB_CNT_BASE + 200,/* Broadcast Frames Xmitted OK */
+ GM_TXF_MPAUSE = GM_MIB_CNT_BASE + 208,/* Pause MAC Ctrl Frames Xmitted */
+ GM_TXF_MC_OK = GM_MIB_CNT_BASE + 216,/* Multicast Frames Xmitted OK */
+ GM_TXO_OK_LO = GM_MIB_CNT_BASE + 224,/* Octets Transmitted OK Low */
+ GM_TXO_OK_HI = GM_MIB_CNT_BASE + 232,/* Octets Transmitted OK High */
+ GM_TXF_64B = GM_MIB_CNT_BASE + 240,/* 64 Byte Tx Frame */
+ GM_TXF_127B = GM_MIB_CNT_BASE + 248,/* 65-127 Byte Tx Frame */
+ GM_TXF_255B = GM_MIB_CNT_BASE + 256,/* 128-255 Byte Tx Frame */
+ GM_TXF_511B = GM_MIB_CNT_BASE + 264,/* 256-511 Byte Tx Frame */
+ GM_TXF_1023B = GM_MIB_CNT_BASE + 272,/* 512-1023 Byte Tx Frame */
+ GM_TXF_1518B = GM_MIB_CNT_BASE + 280,/* 1024-1518 Byte Tx Frame */
+ GM_TXF_MAX_SZ = GM_MIB_CNT_BASE + 288,/* 1519-MaxSize Byte Tx Frame */
+
+ GM_TXF_COL = GM_MIB_CNT_BASE + 304,/* Tx Collision */
+ GM_TXF_LAT_COL = GM_MIB_CNT_BASE + 312,/* Tx Late Collision */
+ GM_TXF_ABO_COL = GM_MIB_CNT_BASE + 320,/* Tx aborted due to Exces. Col. */
+ GM_TXF_MUL_COL = GM_MIB_CNT_BASE + 328,/* Tx Multiple Collision */
+ GM_TXF_SNG_COL = GM_MIB_CNT_BASE + 336,/* Tx Single Collision */
+ GM_TXE_FIFO_UR = GM_MIB_CNT_BASE + 344,/* Tx FIFO Underrun Event */
+};
+
+/* GMAC Bit Definitions */
+/* GM_GP_STAT 16 bit r/o General Purpose Status Register */
+enum {
+ GM_GPSR_SPEED = 1<<15, /* Bit 15: Port Speed (1 = 100 Mbps) */
+ GM_GPSR_DUPLEX = 1<<14, /* Bit 14: Duplex Mode (1 = Full) */
+ GM_GPSR_FC_TX_DIS = 1<<13, /* Bit 13: Tx Flow-Control Mode Disabled */
+ GM_GPSR_LINK_UP = 1<<12, /* Bit 12: Link Up Status */
+ GM_GPSR_PAUSE = 1<<11, /* Bit 11: Pause State */
+ GM_GPSR_TX_ACTIVE = 1<<10, /* Bit 10: Tx in Progress */
+ GM_GPSR_EXC_COL = 1<<9, /* Bit 9: Excessive Collisions Occurred */
+ GM_GPSR_LAT_COL = 1<<8, /* Bit 8: Late Collisions Occurred */
+
+ GM_GPSR_PHY_ST_CH = 1<<5, /* Bit 5: PHY Status Change */
+ GM_GPSR_GIG_SPEED = 1<<4, /* Bit 4: Gigabit Speed (1 = 1000 Mbps) */
+ GM_GPSR_PART_MODE = 1<<3, /* Bit 3: Partition mode */
+ GM_GPSR_FC_RX_DIS = 1<<2, /* Bit 2: Rx Flow-Control Mode Disabled */
+ GM_GPSR_PROM_EN = 1<<1, /* Bit 1: Promiscuous Mode Enabled */
+};
+
+/* GM_GP_CTRL 16 bit r/w General Purpose Control Register */
+enum {
+ GM_GPCR_PROM_ENA = 1<<14, /* Bit 14: Enable Promiscuous Mode */
+ GM_GPCR_FC_TX_DIS = 1<<13, /* Bit 13: Disable Tx Flow-Control Mode */
+ GM_GPCR_TX_ENA = 1<<12, /* Bit 12: Enable Transmit */
+ GM_GPCR_RX_ENA = 1<<11, /* Bit 11: Enable Receive */
+ GM_GPCR_BURST_ENA = 1<<10, /* Bit 10: Enable Burst Mode */
+ GM_GPCR_LOOP_ENA = 1<<9, /* Bit 9: Enable MAC Loopback Mode */
+ GM_GPCR_PART_ENA = 1<<8, /* Bit 8: Enable Partition Mode */
+ GM_GPCR_GIGS_ENA = 1<<7, /* Bit 7: Gigabit Speed (1000 Mbps) */
+ GM_GPCR_FL_PASS = 1<<6, /* Bit 6: Force Link Pass */
+ GM_GPCR_DUP_FULL = 1<<5, /* Bit 5: Full Duplex Mode */
+ GM_GPCR_FC_RX_DIS = 1<<4, /* Bit 4: Disable Rx Flow-Control Mode */
+ GM_GPCR_SPEED_100 = 1<<3, /* Bit 3: Port Speed 100 Mbps */
+ GM_GPCR_AU_DUP_DIS = 1<<2, /* Bit 2: Disable Auto-Update Duplex */
+ GM_GPCR_AU_FCT_DIS = 1<<1, /* Bit 1: Disable Auto-Update Flow-C. */
+ GM_GPCR_AU_SPD_DIS = 1<<0, /* Bit 0: Disable Auto-Update Speed */
+};
+
+#define GM_GPCR_SPEED_1000 (GM_GPCR_GIGS_ENA | GM_GPCR_SPEED_100)
+
+/* GM_TX_CTRL 16 bit r/w Transmit Control Register */
+enum {
+ GM_TXCR_FORCE_JAM = 1<<15, /* Bit 15: Force Jam / Flow-Control */
+ GM_TXCR_CRC_DIS = 1<<14, /* Bit 14: Disable insertion of CRC */
+ GM_TXCR_PAD_DIS = 1<<13, /* Bit 13: Disable padding of packets */
+ GM_TXCR_COL_THR_MSK = 7<<10, /* Bit 12..10: Collision Threshold */
+};
+
+#define TX_COL_THR(x) (((x)<<10) & GM_TXCR_COL_THR_MSK)
+#define TX_COL_DEF 0x04
+
+/* GM_RX_CTRL 16 bit r/w Receive Control Register */
+enum {
+ GM_RXCR_UCF_ENA = 1<<15, /* Bit 15: Enable Unicast filtering */
+ GM_RXCR_MCF_ENA = 1<<14, /* Bit 14: Enable Multicast filtering */
+ GM_RXCR_CRC_DIS = 1<<13, /* Bit 13: Remove 4-byte CRC */
+ GM_RXCR_PASS_FC = 1<<12, /* Bit 12: Pass FC packets to FIFO */
+};
+
+/* GM_TX_PARAM 16 bit r/w Transmit Parameter Register */
+enum {
+ GM_TXPA_JAMLEN_MSK = 0x03<<14, /* Bit 15..14: Jam Length */
+ GM_TXPA_JAMIPG_MSK = 0x1f<<9, /* Bit 13..9: Jam IPG */
+ GM_TXPA_JAMDAT_MSK = 0x1f<<4, /* Bit 8..4: IPG Jam to Data */
+ GM_TXPA_BO_LIM_MSK = 0x0f, /* Bit 3.. 0: Backoff Limit Mask */
+
+ TX_JAM_LEN_DEF = 0x03,
+ TX_JAM_IPG_DEF = 0x0b,
+ TX_IPG_JAM_DEF = 0x1c,
+ TX_BOF_LIM_DEF = 0x04,
+};
+
+#define TX_JAM_LEN_VAL(x) (((x)<<14) & GM_TXPA_JAMLEN_MSK)
+#define TX_JAM_IPG_VAL(x) (((x)<<9) & GM_TXPA_JAMIPG_MSK)
+#define TX_IPG_JAM_DATA(x) (((x)<<4) & GM_TXPA_JAMDAT_MSK)
+#define TX_BACK_OFF_LIM(x) ((x) & GM_TXPA_BO_LIM_MSK)
+
+
+/* GM_SERIAL_MODE 16 bit r/w Serial Mode Register */
+enum {
+ GM_SMOD_DATABL_MSK = 0x1f<<11, /* Bit 15..11: Data Blinder (r/o) */
+ GM_SMOD_LIMIT_4 = 1<<10, /* 4 consecutive Tx trials */
+ GM_SMOD_VLAN_ENA = 1<<9, /* Enable VLAN (Max. Frame Len) */
+ GM_SMOD_JUMBO_ENA = 1<<8, /* Enable Jumbo (Max. Frame Len) */
+
+ GM_NEW_FLOW_CTRL = 1<<6, /* Enable New Flow-Control */
+
+ GM_SMOD_IPG_MSK = 0x1f /* Bit 4..0: Inter-Packet Gap (IPG) */
+};
+
+#define DATA_BLIND_VAL(x) (((x)<<11) & GM_SMOD_DATABL_MSK)
+#define IPG_DATA_VAL(x) (x & GM_SMOD_IPG_MSK)
+
+#define DATA_BLIND_DEF 0x04
+#define IPG_DATA_DEF_1000 0x1e
+#define IPG_DATA_DEF_10_100 0x18
+
+/* GM_SMI_CTRL 16 bit r/w SMI Control Register */
+enum {
+ GM_SMI_CT_PHY_A_MSK = 0x1f<<11,/* Bit 15..11: PHY Device Address */
+ GM_SMI_CT_REG_A_MSK = 0x1f<<6,/* Bit 10.. 6: PHY Register Address */
+ GM_SMI_CT_OP_RD = 1<<5, /* Bit 5: OpCode Read (0=Write)*/
+ GM_SMI_CT_RD_VAL = 1<<4, /* Bit 4: Read Valid (Read completed) */
+ GM_SMI_CT_BUSY = 1<<3, /* Bit 3: Busy (Operation in progress) */
+};
+
+#define GM_SMI_CT_PHY_AD(x) (((u16)(x)<<11) & GM_SMI_CT_PHY_A_MSK)
+#define GM_SMI_CT_REG_AD(x) (((u16)(x)<<6) & GM_SMI_CT_REG_A_MSK)
+
+/* GM_PHY_ADDR 16 bit r/w GPHY Address Register */
+enum {
+ GM_PAR_MIB_CLR = 1<<5, /* Bit 5: Set MIB Clear Counter Mode */
+ GM_PAR_MIB_TST = 1<<4, /* Bit 4: MIB Load Counter (Test Mode) */
+};
+
+/* Receive Frame Status Encoding */
+enum {
+ GMR_FS_LEN = 0x7fff<<16, /* Bit 30..16: Rx Frame Length */
+ GMR_FS_VLAN = 1<<13, /* VLAN Packet */
+ GMR_FS_JABBER = 1<<12, /* Jabber Packet */
+ GMR_FS_UN_SIZE = 1<<11, /* Undersize Packet */
+ GMR_FS_MC = 1<<10, /* Multicast Packet */
+ GMR_FS_BC = 1<<9, /* Broadcast Packet */
+ GMR_FS_RX_OK = 1<<8, /* Receive OK (Good Packet) */
+ GMR_FS_GOOD_FC = 1<<7, /* Good Flow-Control Packet */
+ GMR_FS_BAD_FC = 1<<6, /* Bad Flow-Control Packet */
+ GMR_FS_MII_ERR = 1<<5, /* MII Error */
+ GMR_FS_LONG_ERR = 1<<4, /* Too Long Packet */
+ GMR_FS_FRAGMENT = 1<<3, /* Fragment */
+
+ GMR_FS_CRC_ERR = 1<<1, /* CRC Error */
+ GMR_FS_RX_FF_OV = 1<<0, /* Rx FIFO Overflow */
+
+ GMR_FS_ANY_ERR = GMR_FS_RX_FF_OV | GMR_FS_CRC_ERR |
+ GMR_FS_FRAGMENT | GMR_FS_LONG_ERR |
+ GMR_FS_MII_ERR | GMR_FS_BAD_FC |
+ GMR_FS_UN_SIZE | GMR_FS_JABBER,
+};
+
+/* RX_GMF_CTRL_T 32 bit Rx GMAC FIFO Control/Test */
+enum {
+ RX_GCLKMAC_ENA = 1<<31, /* RX MAC Clock Gating Enable */
+ RX_GCLKMAC_OFF = 1<<30,
+
+ RX_STFW_DIS = 1<<29, /* RX Store and Forward Enable */
+ RX_STFW_ENA = 1<<28,
+
+ RX_TRUNC_ON = 1<<27, /* enable packet truncation */
+ RX_TRUNC_OFF = 1<<26, /* disable packet truncation */
+ RX_VLAN_STRIP_ON = 1<<25, /* enable VLAN stripping */
+ RX_VLAN_STRIP_OFF = 1<<24, /* disable VLAN stripping */
+
+ RX_MACSEC_FLUSH_ON = 1<<23,
+ RX_MACSEC_FLUSH_OFF = 1<<22,
+ RX_MACSEC_ASF_FLUSH_ON = 1<<21,
+ RX_MACSEC_ASF_FLUSH_OFF = 1<<20,
+
+ GMF_RX_OVER_ON = 1<<19, /* enable flushing on receive overrun */
+ GMF_RX_OVER_OFF = 1<<18, /* disable flushing on receive overrun */
+ GMF_ASF_RX_OVER_ON = 1<<17, /* enable flushing of ASF when overrun */
+ GMF_ASF_RX_OVER_OFF = 1<<16, /* disable flushing of ASF when overrun */
+
+ GMF_WP_TST_ON = 1<<14, /* Write Pointer Test On */
+ GMF_WP_TST_OFF = 1<<13, /* Write Pointer Test Off */
+ GMF_WP_STEP = 1<<12, /* Write Pointer Step/Increment */
+
+ GMF_RP_TST_ON = 1<<10, /* Read Pointer Test On */
+ GMF_RP_TST_OFF = 1<<9, /* Read Pointer Test Off */
+ GMF_RP_STEP = 1<<8, /* Read Pointer Step/Increment */
+ GMF_RX_F_FL_ON = 1<<7, /* Rx FIFO Flush Mode On */
+ GMF_RX_F_FL_OFF = 1<<6, /* Rx FIFO Flush Mode Off */
+ GMF_CLI_RX_FO = 1<<5, /* Clear IRQ Rx FIFO Overrun */
+ GMF_CLI_RX_C = 1<<4, /* Clear IRQ Rx Frame Complete */
+
+ GMF_OPER_ON = 1<<3, /* Operational Mode On */
+ GMF_OPER_OFF = 1<<2, /* Operational Mode Off */
+ GMF_RST_CLR = 1<<1, /* Clear GMAC FIFO Reset */
+ GMF_RST_SET = 1<<0, /* Set GMAC FIFO Reset */
+
+ RX_GMF_FL_THR_DEF = 0xa, /* flush threshold (default) */
+
+ GMF_RX_CTRL_DEF = GMF_OPER_ON | GMF_RX_F_FL_ON,
+};
+
+/* RX_GMF_FL_CTRL 16 bit Rx GMAC FIFO Flush Control (Yukon-Supreme) */
+enum {
+ RX_IPV6_SA_MOB_ENA = 1<<9, /* IPv6 SA Mobility Support Enable */
+ RX_IPV6_SA_MOB_DIS = 1<<8, /* IPv6 SA Mobility Support Disable */
+ RX_IPV6_DA_MOB_ENA = 1<<7, /* IPv6 DA Mobility Support Enable */
+ RX_IPV6_DA_MOB_DIS = 1<<6, /* IPv6 DA Mobility Support Disable */
+ RX_PTR_SYNCDLY_ENA = 1<<5, /* Pointers Delay Synch Enable */
+ RX_PTR_SYNCDLY_DIS = 1<<4, /* Pointers Delay Synch Disable */
+ RX_ASF_NEWFLAG_ENA = 1<<3, /* RX ASF Flag New Logic Enable */
+ RX_ASF_NEWFLAG_DIS = 1<<2, /* RX ASF Flag New Logic Disable */
+ RX_FLSH_MISSPKT_ENA = 1<<1, /* RX Flush Miss-Packet Enable */
+ RX_FLSH_MISSPKT_DIS = 1<<0, /* RX Flush Miss-Packet Disable */
+};
+
+/* TX_GMF_EA 32 bit Tx GMAC FIFO End Address */
+enum {
+ TX_DYN_WM_ENA = 3, /* Yukon-FE+ specific */
+};
+
+/* TX_GMF_CTRL_T 32 bit Tx GMAC FIFO Control/Test */
+enum {
+ TX_STFW_DIS = 1<<31,/* Disable Store & Forward */
+ TX_STFW_ENA = 1<<30,/* Enable Store & Forward */
+
+ TX_VLAN_TAG_ON = 1<<25,/* enable VLAN tagging */
+ TX_VLAN_TAG_OFF = 1<<24,/* disable VLAN tagging */
+
+ TX_PCI_JUM_ENA = 1<<23,/* PCI Jumbo Mode enable */
+ TX_PCI_JUM_DIS = 1<<22,/* PCI Jumbo Mode enable */
+
+ GMF_WSP_TST_ON = 1<<18,/* Write Shadow Pointer Test On */
+ GMF_WSP_TST_OFF = 1<<17,/* Write Shadow Pointer Test Off */
+ GMF_WSP_STEP = 1<<16,/* Write Shadow Pointer Step/Increment */
+
+ GMF_CLI_TX_FU = 1<<6, /* Clear IRQ Tx FIFO Underrun */
+ GMF_CLI_TX_FC = 1<<5, /* Clear IRQ Tx Frame Complete */
+ GMF_CLI_TX_PE = 1<<4, /* Clear IRQ Tx Parity Error */
+};
+
+/* GMAC_TI_ST_CTRL 8 bit Time Stamp Timer Ctrl Reg (YUKON only) */
+enum {
+ GMT_ST_START = 1<<2, /* Start Time Stamp Timer */
+ GMT_ST_STOP = 1<<1, /* Stop Time Stamp Timer */
+ GMT_ST_CLR_IRQ = 1<<0, /* Clear Time Stamp Timer IRQ */
+};
+
+/* B28_Y2_ASF_STAT_CMD 32 bit ASF Status and Command Reg */
+enum {
+ Y2_ASF_OS_PRES = 1<<4, /* ASF operation system present */
+ Y2_ASF_RESET = 1<<3, /* ASF system in reset state */
+ Y2_ASF_RUNNING = 1<<2, /* ASF system operational */
+ Y2_ASF_CLR_HSTI = 1<<1, /* Clear ASF IRQ */
+ Y2_ASF_IRQ = 1<<0, /* Issue an IRQ to ASF system */
+
+ Y2_ASF_UC_STATE = 3<<2, /* ASF uC State */
+ Y2_ASF_CLK_HALT = 0, /* ASF system clock stopped */
+};
+
+/* B28_Y2_ASF_HOST_COM 32 bit ASF Host Communication Reg */
+enum {
+ Y2_ASF_CLR_ASFI = 1<<1, /* Clear host IRQ */
+ Y2_ASF_HOST_IRQ = 1<<0, /* Issue an IRQ to HOST system */
+};
+/* HCU_CCSR CPU Control and Status Register */
+enum {
+ HCU_CCSR_SMBALERT_MONITOR= 1<<27, /* SMBALERT pin monitor */
+ HCU_CCSR_CPU_SLEEP = 1<<26, /* CPU sleep status */
+ /* Clock Stretching Timeout */
+ HCU_CCSR_CS_TO = 1<<25,
+ HCU_CCSR_WDOG = 1<<24, /* Watchdog Reset */
+
+ HCU_CCSR_CLR_IRQ_HOST = 1<<17, /* Clear IRQ_HOST */
+ HCU_CCSR_SET_IRQ_HCU = 1<<16, /* Set IRQ_HCU */
+
+ HCU_CCSR_AHB_RST = 1<<9, /* Reset AHB bridge */
+ HCU_CCSR_CPU_RST_MODE = 1<<8, /* CPU Reset Mode */
+
+ HCU_CCSR_SET_SYNC_CPU = 1<<5,
+ HCU_CCSR_CPU_CLK_DIVIDE_MSK = 3<<3,/* CPU Clock Divide */
+ HCU_CCSR_CPU_CLK_DIVIDE_BASE= 1<<3,
+ HCU_CCSR_OS_PRSNT = 1<<2, /* ASF OS Present */
+/* Microcontroller State */
+ HCU_CCSR_UC_STATE_MSK = 3,
+ HCU_CCSR_UC_STATE_BASE = 1<<0,
+ HCU_CCSR_ASF_RESET = 0,
+ HCU_CCSR_ASF_HALTED = 1<<1,
+ HCU_CCSR_ASF_RUNNING = 1<<0,
+};
+
+/* HCU_HCSR Host Control and Status Register */
+enum {
+ HCU_HCSR_SET_IRQ_CPU = 1<<16, /* Set IRQ_CPU */
+
+ HCU_HCSR_CLR_IRQ_HCU = 1<<1, /* Clear IRQ_HCU */
+ HCU_HCSR_SET_IRQ_HOST = 1<<0, /* Set IRQ_HOST */
+};
+
+/* STAT_CTRL 32 bit Status BMU control register (Yukon-2 only) */
+enum {
+ SC_STAT_CLR_IRQ = 1<<4, /* Status Burst IRQ clear */
+ SC_STAT_OP_ON = 1<<3, /* Operational Mode On */
+ SC_STAT_OP_OFF = 1<<2, /* Operational Mode Off */
+ SC_STAT_RST_CLR = 1<<1, /* Clear Status Unit Reset (Enable) */
+ SC_STAT_RST_SET = 1<<0, /* Set Status Unit Reset */
+};
+
+/* GMAC_CTRL 32 bit GMAC Control Reg (YUKON only) */
+enum {
+ GMC_SET_RST = 1<<15,/* MAC SEC RST */
+ GMC_SEC_RST_OFF = 1<<14,/* MAC SEC RSt OFF */
+ GMC_BYP_MACSECRX_ON = 1<<13,/* Bypass macsec RX */
+ GMC_BYP_MACSECRX_OFF= 1<<12,/* Bypass macsec RX off */
+ GMC_BYP_MACSECTX_ON = 1<<11,/* Bypass macsec TX */
+ GMC_BYP_MACSECTX_OFF= 1<<10,/* Bypass macsec TX off*/
+ GMC_BYP_RETR_ON = 1<<9, /* Bypass retransmit FIFO On */
+ GMC_BYP_RETR_OFF= 1<<8, /* Bypass retransmit FIFO Off */
+
+ GMC_H_BURST_ON = 1<<7, /* Half Duplex Burst Mode On */
+ GMC_H_BURST_OFF = 1<<6, /* Half Duplex Burst Mode Off */
+ GMC_F_LOOPB_ON = 1<<5, /* FIFO Loopback On */
+ GMC_F_LOOPB_OFF = 1<<4, /* FIFO Loopback Off */
+ GMC_PAUSE_ON = 1<<3, /* Pause On */
+ GMC_PAUSE_OFF = 1<<2, /* Pause Off */
+ GMC_RST_CLR = 1<<1, /* Clear GMAC Reset */
+ GMC_RST_SET = 1<<0, /* Set GMAC Reset */
+};
+
+/* GPHY_CTRL 32 bit GPHY Control Reg (YUKON only) */
+enum {
+ GPC_TX_PAUSE = 1<<30, /* Tx pause enabled (ro) */
+ GPC_RX_PAUSE = 1<<29, /* Rx pause enabled (ro) */
+ GPC_SPEED = 3<<27, /* PHY speed (ro) */
+ GPC_LINK = 1<<26, /* Link up (ro) */
+ GPC_DUPLEX = 1<<25, /* Duplex (ro) */
+ GPC_CLOCK = 1<<24, /* 125Mhz clock stable (ro) */
+
+ GPC_PDOWN = 1<<23, /* Internal regulator 2.5 power down */
+ GPC_TSTMODE = 1<<22, /* Test mode */
+ GPC_REG18 = 1<<21, /* Reg18 Power down */
+ GPC_REG12SEL = 3<<19, /* Reg12 power setting */
+ GPC_REG18SEL = 3<<17, /* Reg18 power setting */
+ GPC_SPILOCK = 1<<16, /* SPI lock (ASF) */
+
+ GPC_LEDMUX = 3<<14, /* LED Mux */
+ GPC_INTPOL = 1<<13, /* Interrupt polarity */
+ GPC_DETECT = 1<<12, /* Energy detect */
+ GPC_1000HD = 1<<11, /* Enable 1000Mbit HD */
+ GPC_SLAVE = 1<<10, /* Slave mode */
+ GPC_PAUSE = 1<<9, /* Pause enable */
+ GPC_LEDCTL = 3<<6, /* GPHY Leds */
+
+ GPC_RST_CLR = 1<<1, /* Clear GPHY Reset */
+ GPC_RST_SET = 1<<0, /* Set GPHY Reset */
+};
+
+/* GMAC_IRQ_SRC 8 bit GMAC Interrupt Source Reg (YUKON only) */
+/* GMAC_IRQ_MSK 8 bit GMAC Interrupt Mask Reg (YUKON only) */
+enum {
+ GM_IS_TX_CO_OV = 1<<5, /* Transmit Counter Overflow IRQ */
+ GM_IS_RX_CO_OV = 1<<4, /* Receive Counter Overflow IRQ */
+ GM_IS_TX_FF_UR = 1<<3, /* Transmit FIFO Underrun */
+ GM_IS_TX_COMPL = 1<<2, /* Frame Transmission Complete */
+ GM_IS_RX_FF_OR = 1<<1, /* Receive FIFO Overrun */
+ GM_IS_RX_COMPL = 1<<0, /* Frame Reception Complete */
+
+#define GMAC_DEF_MSK (GM_IS_TX_FF_UR | GM_IS_RX_FF_OR)
+};
+
+/* GMAC_LINK_CTRL 16 bit GMAC Link Control Reg (YUKON only) */
+enum { /* Bits 15.. 2: reserved */
+ GMLC_RST_CLR = 1<<1, /* Clear GMAC Link Reset */
+ GMLC_RST_SET = 1<<0, /* Set GMAC Link Reset */
+};
+
+
+/* WOL_CTRL_STAT 16 bit WOL Control/Status Reg */
+enum {
+ WOL_CTL_LINK_CHG_OCC = 1<<15,
+ WOL_CTL_MAGIC_PKT_OCC = 1<<14,
+ WOL_CTL_PATTERN_OCC = 1<<13,
+ WOL_CTL_CLEAR_RESULT = 1<<12,
+ WOL_CTL_ENA_PME_ON_LINK_CHG = 1<<11,
+ WOL_CTL_DIS_PME_ON_LINK_CHG = 1<<10,
+ WOL_CTL_ENA_PME_ON_MAGIC_PKT = 1<<9,
+ WOL_CTL_DIS_PME_ON_MAGIC_PKT = 1<<8,
+ WOL_CTL_ENA_PME_ON_PATTERN = 1<<7,
+ WOL_CTL_DIS_PME_ON_PATTERN = 1<<6,
+ WOL_CTL_ENA_LINK_CHG_UNIT = 1<<5,
+ WOL_CTL_DIS_LINK_CHG_UNIT = 1<<4,
+ WOL_CTL_ENA_MAGIC_PKT_UNIT = 1<<3,
+ WOL_CTL_DIS_MAGIC_PKT_UNIT = 1<<2,
+ WOL_CTL_ENA_PATTERN_UNIT = 1<<1,
+ WOL_CTL_DIS_PATTERN_UNIT = 1<<0,
+};
+
+
+/* Control flags */
+enum {
+ UDPTCP = 1<<0,
+ CALSUM = 1<<1,
+ WR_SUM = 1<<2,
+ INIT_SUM= 1<<3,
+ LOCK_SUM= 1<<4,
+ INS_VLAN= 1<<5,
+ EOP = 1<<7,
+};
+
+enum {
+ HW_OWNER = 1<<7,
+ OP_TCPWRITE = 0x11,
+ OP_TCPSTART = 0x12,
+ OP_TCPINIT = 0x14,
+ OP_TCPLCK = 0x18,
+ OP_TCPCHKSUM = OP_TCPSTART,
+ OP_TCPIS = OP_TCPINIT | OP_TCPSTART,
+ OP_TCPLW = OP_TCPLCK | OP_TCPWRITE,
+ OP_TCPLSW = OP_TCPLCK | OP_TCPSTART | OP_TCPWRITE,
+ OP_TCPLISW = OP_TCPLCK | OP_TCPINIT | OP_TCPSTART | OP_TCPWRITE,
+
+ OP_ADDR64 = 0x21,
+ OP_VLAN = 0x22,
+ OP_ADDR64VLAN = OP_ADDR64 | OP_VLAN,
+ OP_LRGLEN = 0x24,
+ OP_LRGLENVLAN = OP_LRGLEN | OP_VLAN,
+ OP_MSS = 0x28,
+ OP_MSSVLAN = OP_MSS | OP_VLAN,
+
+ OP_BUFFER = 0x40,
+ OP_PACKET = 0x41,
+ OP_LARGESEND = 0x43,
+ OP_LSOV2 = 0x45,
+
+/* YUKON-2 STATUS opcodes defines */
+ OP_RXSTAT = 0x60,
+ OP_RXTIMESTAMP = 0x61,
+ OP_RXVLAN = 0x62,
+ OP_RXCHKS = 0x64,
+ OP_RXCHKSVLAN = OP_RXCHKS | OP_RXVLAN,
+ OP_RXTIMEVLAN = OP_RXTIMESTAMP | OP_RXVLAN,
+ OP_RSS_HASH = 0x65,
+ OP_TXINDEXLE = 0x68,
+ OP_MACSEC = 0x6c,
+ OP_PUTIDX = 0x70,
+};
+
+enum status_css {
+ CSS_TCPUDPCSOK = 1<<7, /* TCP / UDP checksum is ok */
+ CSS_ISUDP = 1<<6, /* packet is a UDP packet */
+ CSS_ISTCP = 1<<5, /* packet is a TCP packet */
+ CSS_ISIPFRAG = 1<<4, /* packet is a TCP/UDP frag, CS calc not done */
+ CSS_ISIPV6 = 1<<3, /* packet is a IPv6 packet */
+ CSS_IPV4CSUMOK = 1<<2, /* IP v4: TCP header checksum is ok */
+ CSS_ISIPV4 = 1<<1, /* packet is a IPv4 packet */
+ CSS_LINK_BIT = 1<<0, /* port number (legacy) */
+};
+
+/* Yukon 2 hardware interface */
+struct sky2_tx_le {
+ __le32 addr;
+ __le16 length; /* also vlan tag or checksum start */
+ u8 ctrl;
+ u8 opcode;
+} __packed;
+
+struct sky2_rx_le {
+ __le32 addr;
+ __le16 length;
+ u8 ctrl;
+ u8 opcode;
+} __packed;
+
+struct sky2_status_le {
+ __le32 status; /* also checksum */
+ __le16 length; /* also vlan tag */
+ u8 css;
+ u8 opcode;
+} __packed;
+
+struct tx_ring_info {
+ struct sk_buff *skb;
+ unsigned long flags;
+#define TX_MAP_SINGLE 0x0001
+#define TX_MAP_PAGE 0x0002
+ DEFINE_DMA_UNMAP_ADDR(mapaddr);
+ DEFINE_DMA_UNMAP_LEN(maplen);
+};
+
+struct rx_ring_info {
+ struct sk_buff *skb;
+ dma_addr_t data_addr;
+ DEFINE_DMA_UNMAP_LEN(data_size);
+ dma_addr_t frag_addr[ETH_JUMBO_MTU >> PAGE_SHIFT];
+};
+
+enum flow_control {
+ FC_NONE = 0,
+ FC_TX = 1,
+ FC_RX = 2,
+ FC_BOTH = 3,
+};
+
+struct sky2_stats {
+ struct u64_stats_sync syncp;
+ u64 packets;
+ u64 bytes;
+};
+
+struct sky2_port {
+ struct sky2_hw *hw;
+ struct net_device *netdev;
+ unsigned port;
+ u32 msg_enable;
+ spinlock_t phy_lock;
+
+ struct tx_ring_info *tx_ring;
+ struct sky2_tx_le *tx_le;
+ struct sky2_stats tx_stats;
+
+ u16 tx_ring_size;
+ u16 tx_cons; /* next le to check */
+ u16 tx_prod; /* next le to use */
+ u16 tx_next; /* debug only */
+
+ u16 tx_pending;
+ u16 tx_last_mss;
+ u32 tx_last_upper;
+ u32 tx_tcpsum;
+
+ struct rx_ring_info *rx_ring ____cacheline_aligned_in_smp;
+ struct sky2_rx_le *rx_le;
+ struct sky2_stats rx_stats;
+
+ u16 rx_next; /* next re to check */
+ u16 rx_put; /* next le index to use */
+ u16 rx_pending;
+ u16 rx_data_size;
+ u16 rx_nfrags;
+
+ struct {
+ unsigned long last;
+ u32 mac_rp;
+ u8 mac_lev;
+ u8 fifo_rp;
+ u8 fifo_lev;
+ } check;
+
+ dma_addr_t rx_le_map;
+ dma_addr_t tx_le_map;
+
+ u16 advertising; /* ADVERTISED_ bits */
+ u16 speed; /* SPEED_1000, SPEED_100, ... */
+ u8 wol; /* WAKE_ bits */
+ u8 duplex; /* DUPLEX_HALF, DUPLEX_FULL */
+ u16 flags;
+#define SKY2_FLAG_AUTO_SPEED 0x0002
+#define SKY2_FLAG_AUTO_PAUSE 0x0004
+
+ enum flow_control flow_mode;
+ enum flow_control flow_status;
+
+#ifdef CONFIG_SKY2_DEBUG
+ struct dentry *debugfs;
+#endif
+};
+
+struct sky2_hw {
+ void __iomem *regs;
+ struct pci_dev *pdev;
+ struct napi_struct napi;
+ struct net_device *dev[2];
+ unsigned long flags;
+#define SKY2_HW_USE_MSI 0x00000001
+#define SKY2_HW_FIBRE_PHY 0x00000002
+#define SKY2_HW_GIGABIT 0x00000004
+#define SKY2_HW_NEWER_PHY 0x00000008
+#define SKY2_HW_RAM_BUFFER 0x00000010
+#define SKY2_HW_NEW_LE 0x00000020 /* new LSOv2 format */
+#define SKY2_HW_AUTO_TX_SUM 0x00000040 /* new IP decode for Tx */
+#define SKY2_HW_ADV_POWER_CTL 0x00000080 /* additional PHY power regs */
+#define SKY2_HW_RSS_BROKEN 0x00000100
+#define SKY2_HW_VLAN_BROKEN 0x00000200
+#define SKY2_HW_RSS_CHKSUM 0x00000400 /* RSS requires chksum */
+#define SKY2_HW_IRQ_SETUP 0x00000800
+
+ u8 chip_id;
+ u8 chip_rev;
+ u8 pmd_type;
+ u8 ports;
+
+ struct sky2_status_le *st_le;
+ u32 st_size;
+ u32 st_idx;
+ dma_addr_t st_dma;
+
+ struct timer_list watchdog_timer;
+ struct work_struct restart_work;
+ wait_queue_head_t msi_wait;
+
+ char irq_name[0];
+};
+
+static inline int sky2_is_copper(const struct sky2_hw *hw)
+{
+ return !(hw->flags & SKY2_HW_FIBRE_PHY);
+}
+
+/* Register accessor for memory mapped device */
+static inline u32 sky2_read32(const struct sky2_hw *hw, unsigned reg)
+{
+ return readl(hw->regs + reg);
+}
+
+static inline u16 sky2_read16(const struct sky2_hw *hw, unsigned reg)
+{
+ return readw(hw->regs + reg);
+}
+
+static inline u8 sky2_read8(const struct sky2_hw *hw, unsigned reg)
+{
+ return readb(hw->regs + reg);
+}
+
+static inline void sky2_write32(const struct sky2_hw *hw, unsigned reg, u32 val)
+{
+ writel(val, hw->regs + reg);
+}
+
+static inline void sky2_write16(const struct sky2_hw *hw, unsigned reg, u16 val)
+{
+ writew(val, hw->regs + reg);
+}
+
+static inline void sky2_write8(const struct sky2_hw *hw, unsigned reg, u8 val)
+{
+ writeb(val, hw->regs + reg);
+}
+
+/* Yukon PHY related registers */
+#define SK_GMAC_REG(port,reg) \
+ (BASE_GMAC_1 + (port) * (BASE_GMAC_2-BASE_GMAC_1) + (reg))
+#define GM_PHY_RETRIES 100
+
+static inline u16 gma_read16(const struct sky2_hw *hw, unsigned port, unsigned reg)
+{
+ return sky2_read16(hw, SK_GMAC_REG(port,reg));
+}
+
+static inline u32 gma_read32(struct sky2_hw *hw, unsigned port, unsigned reg)
+{
+ unsigned base = SK_GMAC_REG(port, reg);
+ return (u32) sky2_read16(hw, base)
+ | (u32) sky2_read16(hw, base+4) << 16;
+}
+
+static inline u64 gma_read64(struct sky2_hw *hw, unsigned port, unsigned reg)
+{
+ unsigned base = SK_GMAC_REG(port, reg);
+
+ return (u64) sky2_read16(hw, base)
+ | (u64) sky2_read16(hw, base+4) << 16
+ | (u64) sky2_read16(hw, base+8) << 32
+ | (u64) sky2_read16(hw, base+12) << 48;
+}
+
+/* There is no way to atomically read32 bit values from PHY, so retry */
+static inline u32 get_stats32(struct sky2_hw *hw, unsigned port, unsigned reg)
+{
+ u32 val;
+
+ do {
+ val = gma_read32(hw, port, reg);
+ } while (gma_read32(hw, port, reg) != val);
+
+ return val;
+}
+
+static inline u64 get_stats64(struct sky2_hw *hw, unsigned port, unsigned reg)
+{
+ u64 val;
+
+ do {
+ val = gma_read64(hw, port, reg);
+ } while (gma_read64(hw, port, reg) != val);
+
+ return val;
+}
+
+static inline void gma_write16(const struct sky2_hw *hw, unsigned port, int r, u16 v)
+{
+ sky2_write16(hw, SK_GMAC_REG(port,r), v);
+}
+
+static inline void gma_set_addr(struct sky2_hw *hw, unsigned port, unsigned reg,
+ const u8 *addr)
+{
+ gma_write16(hw, port, reg, (u16) addr[0] | ((u16) addr[1] << 8));
+ gma_write16(hw, port, reg+4,(u16) addr[2] | ((u16) addr[3] << 8));
+ gma_write16(hw, port, reg+8,(u16) addr[4] | ((u16) addr[5] << 8));
+}
+
+/* PCI config space access */
+static inline u32 sky2_pci_read32(const struct sky2_hw *hw, unsigned reg)
+{
+ return sky2_read32(hw, Y2_CFG_SPC + reg);
+}
+
+static inline u16 sky2_pci_read16(const struct sky2_hw *hw, unsigned reg)
+{
+ return sky2_read16(hw, Y2_CFG_SPC + reg);
+}
+
+static inline void sky2_pci_write32(struct sky2_hw *hw, unsigned reg, u32 val)
+{
+ sky2_write32(hw, Y2_CFG_SPC + reg, val);
+}
+
+static inline void sky2_pci_write16(struct sky2_hw *hw, unsigned reg, u16 val)
+{
+ sky2_write16(hw, Y2_CFG_SPC + reg, val);
+}
+#endif