Initial import

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diff --git a/include/net/bond_3ad.h b/include/net/bond_3ad.h
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+/*
+ * Copyright(c) 1999 - 2004 Intel Corporation. All rights reserved.
+ *
+ * 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, write to the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ *
+ * The full GNU General Public License is included in this distribution in the
+ * file called LICENSE.
+ *
+ */
+
+#ifndef _NET_BOND_3AD_H
+#define _NET_BOND_3AD_H
+
+#include <asm/byteorder.h>
+#include <linux/skbuff.h>
+#include <linux/netdevice.h>
+#include <linux/if_ether.h>
+
+/* General definitions */
+#define PKT_TYPE_LACPDU         cpu_to_be16(ETH_P_SLOW)
+#define AD_TIMER_INTERVAL       100 /*msec*/
+
+#define MULTICAST_LACPDU_ADDR    {0x01, 0x80, 0xC2, 0x00, 0x00, 0x02}
+
+#define AD_LACP_SLOW 0
+#define AD_LACP_FAST 1
+
+typedef struct mac_addr {
+	u8 mac_addr_value[ETH_ALEN];
+} __packed mac_addr_t;
+
+enum {
+	BOND_AD_STABLE = 0,
+	BOND_AD_BANDWIDTH = 1,
+	BOND_AD_COUNT = 2,
+};
+
+/* rx machine states(43.4.11 in the 802.3ad standard) */
+typedef enum {
+	AD_RX_DUMMY,
+	AD_RX_INITIALIZE,	/* rx Machine */
+	AD_RX_PORT_DISABLED,	/* rx Machine */
+	AD_RX_LACP_DISABLED,	/* rx Machine */
+	AD_RX_EXPIRED,		/* rx Machine */
+	AD_RX_DEFAULTED,	/* rx Machine */
+	AD_RX_CURRENT		/* rx Machine */
+} rx_states_t;
+
+/* periodic machine states(43.4.12 in the 802.3ad standard) */
+typedef enum {
+	AD_PERIODIC_DUMMY,
+	AD_NO_PERIODIC,		/* periodic machine */
+	AD_FAST_PERIODIC,	/* periodic machine */
+	AD_SLOW_PERIODIC,	/* periodic machine */
+	AD_PERIODIC_TX		/* periodic machine */
+} periodic_states_t;
+
+/* mux machine states(43.4.13 in the 802.3ad standard) */
+typedef enum {
+	AD_MUX_DUMMY,
+	AD_MUX_DETACHED,	/* mux machine */
+	AD_MUX_WAITING,		/* mux machine */
+	AD_MUX_ATTACHED,	/* mux machine */
+	AD_MUX_COLLECTING_DISTRIBUTING	/* mux machine */
+} mux_states_t;
+
+/* tx machine states(43.4.15 in the 802.3ad standard) */
+typedef enum {
+	AD_TX_DUMMY,
+	AD_TRANSMIT		/* tx Machine */
+} tx_states_t;
+
+/* churn machine states(43.4.17 in the 802.3ad standard) */
+typedef enum {
+	 AD_CHURN_MONITOR, /* monitoring for churn */
+	 AD_CHURN,         /* churn detected (error) */
+	 AD_NO_CHURN       /* no churn (no error) */
+} churn_state_t;
+
+/* rx indication types */
+typedef enum {
+	AD_TYPE_LACPDU = 1,	/* type lacpdu */
+	AD_TYPE_MARKER		/* type marker */
+} pdu_type_t;
+
+/* rx marker indication types */
+typedef enum {
+	AD_MARKER_INFORMATION_SUBTYPE = 1,	/* marker imformation subtype */
+	AD_MARKER_RESPONSE_SUBTYPE		/* marker response subtype */
+} bond_marker_subtype_t;
+
+/* timers types(43.4.9 in the 802.3ad standard) */
+typedef enum {
+	AD_CURRENT_WHILE_TIMER,
+	AD_ACTOR_CHURN_TIMER,
+	AD_PERIODIC_TIMER,
+	AD_PARTNER_CHURN_TIMER,
+	AD_WAIT_WHILE_TIMER
+} ad_timers_t;
+
+#pragma pack(1)
+
+/* Link Aggregation Control Protocol(LACP) data unit structure(43.4.2.2 in the 802.3ad standard) */
+typedef struct lacpdu {
+	u8 subtype;		/* = LACP(= 0x01) */
+	u8 version_number;
+	u8 tlv_type_actor_info;	/* = actor information(type/length/value) */
+	u8 actor_information_length;	/* = 20 */
+	__be16 actor_system_priority;
+	struct mac_addr actor_system;
+	__be16 actor_key;
+	__be16 actor_port_priority;
+	__be16 actor_port;
+	u8 actor_state;
+	u8 reserved_3_1[3];		/* = 0 */
+	u8 tlv_type_partner_info;	/* = partner information */
+	u8 partner_information_length;	/* = 20 */
+	__be16 partner_system_priority;
+	struct mac_addr partner_system;
+	__be16 partner_key;
+	__be16 partner_port_priority;
+	__be16 partner_port;
+	u8 partner_state;
+	u8 reserved_3_2[3];		/* = 0 */
+	u8 tlv_type_collector_info;	/* = collector information */
+	u8 collector_information_length;/* = 16 */
+	__be16 collector_max_delay;
+	u8 reserved_12[12];
+	u8 tlv_type_terminator;		/* = terminator */
+	u8 terminator_length;		/* = 0 */
+	u8 reserved_50[50];		/* = 0 */
+} __packed lacpdu_t;
+
+typedef struct lacpdu_header {
+	struct ethhdr hdr;
+	struct lacpdu lacpdu;
+} __packed lacpdu_header_t;
+
+/* Marker Protocol Data Unit(PDU) structure(43.5.3.2 in the 802.3ad standard) */
+typedef struct bond_marker {
+	u8 subtype;		/* = 0x02  (marker PDU) */
+	u8 version_number;	/* = 0x01 */
+	u8 tlv_type;		/* = 0x01  (marker information) */
+	/* = 0x02  (marker response information) */
+	u8 marker_length;	/* = 0x16 */
+	u16 requester_port;	/* The number assigned to the port by the requester */
+	struct mac_addr requester_system;	/* The requester's system id */
+	u32 requester_transaction_id;		/* The transaction id allocated by the requester, */
+	u16 pad;		/* = 0 */
+	u8 tlv_type_terminator;	/* = 0x00 */
+	u8 terminator_length;	/* = 0x00 */
+	u8 reserved_90[90];	/* = 0 */
+} __packed bond_marker_t;
+
+typedef struct bond_marker_header {
+	struct ethhdr hdr;
+	struct bond_marker marker;
+} __packed bond_marker_header_t;
+
+#pragma pack()
+
+struct slave;
+struct bonding;
+struct ad_info;
+struct port;
+
+#ifdef __ia64__
+#pragma pack(8)
+#endif
+
+/* aggregator structure(43.4.5 in the 802.3ad standard) */
+typedef struct aggregator {
+	struct mac_addr aggregator_mac_address;
+	u16 aggregator_identifier;
+	bool is_individual;
+	u16 actor_admin_aggregator_key;
+	u16 actor_oper_aggregator_key;
+	struct mac_addr partner_system;
+	u16 partner_system_priority;
+	u16 partner_oper_aggregator_key;
+	u16 receive_state;	/* BOOLEAN */
+	u16 transmit_state;	/* BOOLEAN */
+	struct port *lag_ports;
+	/* ****** PRIVATE PARAMETERS ****** */
+	struct slave *slave;	/* pointer to the bond slave that this aggregator belongs to */
+	u16 is_active;		/* BOOLEAN. Indicates if this aggregator is active */
+	u16 num_of_ports;
+} aggregator_t;
+
+struct port_params {
+	struct mac_addr system;
+	u16 system_priority;
+	u16 key;
+	u16 port_number;
+	u16 port_priority;
+	u16 port_state;
+};
+
+/* port structure(43.4.6 in the 802.3ad standard) */
+typedef struct port {
+	u16 actor_port_number;
+	u16 actor_port_priority;
+	struct mac_addr actor_system;	/* This parameter is added here although it is not specified in the standard, just for simplification */
+	u16 actor_system_priority;	/* This parameter is added here although it is not specified in the standard, just for simplification */
+	u16 actor_port_aggregator_identifier;
+	bool ntt;
+	u16 actor_admin_port_key;
+	u16 actor_oper_port_key;
+	u8 actor_admin_port_state;
+	u8 actor_oper_port_state;
+
+	struct port_params partner_admin;
+	struct port_params partner_oper;
+
+	bool is_enabled;
+
+	/* ****** PRIVATE PARAMETERS ****** */
+	u16 sm_vars;		/* all state machines variables for this port */
+	rx_states_t sm_rx_state;	/* state machine rx state */
+	u16 sm_rx_timer_counter;	/* state machine rx timer counter */
+	periodic_states_t sm_periodic_state;	/* state machine periodic state */
+	u16 sm_periodic_timer_counter;	/* state machine periodic timer counter */
+	mux_states_t sm_mux_state;	/* state machine mux state */
+	u16 sm_mux_timer_counter;	/* state machine mux timer counter */
+	tx_states_t sm_tx_state;	/* state machine tx state */
+	u16 sm_tx_timer_counter;	/* state machine tx timer counter(allways on - enter to transmit state 3 time per second) */
+	u16 sm_churn_actor_timer_counter;
+	u16 sm_churn_partner_timer_counter;
+	u32 churn_actor_count;
+	u32 churn_partner_count;
+	churn_state_t sm_churn_actor_state;
+	churn_state_t sm_churn_partner_state;
+	struct slave *slave;		/* pointer to the bond slave that this port belongs to */
+	struct aggregator *aggregator;	/* pointer to an aggregator that this port related to */
+	struct port *next_port_in_aggregator;	/* Next port on the linked list of the parent aggregator */
+	u32 transaction_id;		/* continuous number for identification of Marker PDU's; */
+	struct lacpdu lacpdu;		/* the lacpdu that will be sent for this port */
+} port_t;
+
+/* system structure */
+struct ad_system {
+	u16 sys_priority;
+	struct mac_addr sys_mac_addr;
+};
+
+#ifdef __ia64__
+#pragma pack()
+#endif
+
+/* ========== AD Exported structures to the main bonding code ========== */
+#define BOND_AD_INFO(bond)   ((bond)->ad_info)
+#define SLAVE_AD_INFO(slave) ((slave)->ad_info)
+
+struct ad_bond_info {
+	struct ad_system system;	/* 802.3ad system structure */
+	u32 agg_select_timer;		/* Timer to select aggregator after all adapter's hand shakes */
+	u16 aggregator_identifier;
+};
+
+struct ad_slave_info {
+	struct aggregator aggregator;	/* 802.3ad aggregator structure */
+	struct port port;		/* 802.3ad port structure */
+	u16 id;
+};
+
+static inline const char *bond_3ad_churn_desc(churn_state_t state)
+{
+	static const char *const churn_description[] = {
+		"monitoring",
+		"churned",
+		"none",
+		"unknown"
+	};
+	int max_size = sizeof(churn_description) / sizeof(churn_description[0]);
+
+	if (state >= max_size)
+		state = max_size - 1;
+
+	return churn_description[state];
+}
+
+/* ========== AD Exported functions to the main bonding code ========== */
+void bond_3ad_initialize(struct bonding *bond, u16 tick_resolution);
+void bond_3ad_bind_slave(struct slave *slave);
+void bond_3ad_unbind_slave(struct slave *slave);
+void bond_3ad_state_machine_handler(struct work_struct *);
+void bond_3ad_initiate_agg_selection(struct bonding *bond, int timeout);
+void bond_3ad_adapter_speed_changed(struct slave *slave);
+void bond_3ad_adapter_duplex_changed(struct slave *slave);
+void bond_3ad_handle_link_change(struct slave *slave, char link);
+int  bond_3ad_get_active_agg_info(struct bonding *bond, struct ad_info *ad_info);
+int  __bond_3ad_get_active_agg_info(struct bonding *bond,
+				    struct ad_info *ad_info);
+int bond_3ad_lacpdu_recv(const struct sk_buff *skb, struct bonding *bond,
+			 struct slave *slave);
+int bond_3ad_set_carrier(struct bonding *bond);
+void bond_3ad_update_lacp_rate(struct bonding *bond);
+#endif /* _NET_BOND_3AD_H */
+