Linux-libre 4.6.2-gnu

1 files changed, 118 insertions, 17 deletions

diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
index 636b4691f..71586a3e0 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
@@ -2557,6 +2557,7 @@ void t4_get_regs(struct adapter *adap, void *buf, size_t buf_size)
 }
 
 #define EEPROM_STAT_ADDR   0x7bfc
+#define VPD_SIZE           0x800
 #define VPD_BASE           0x400
 #define VPD_BASE_OLD       0
 #define VPD_LEN            1024
@@ -2594,6 +2595,15 @@ int t4_get_raw_vpd_params(struct adapter *adapter, struct vpd_params *p)
 	if (!vpd)
 		return -ENOMEM;
 
+	/* We have two VPD data structures stored in the adapter VPD area.
+	 * By default, Linux calculates the size of the VPD area by traversing
+	 * the first VPD area at offset 0x0, so we need to tell the OS what
+	 * our real VPD size is.
+	 */
+	ret = pci_set_vpd_size(adapter->pdev, VPD_SIZE);
+	if (ret < 0)
+		goto out;
+
 	/* Card information normally starts at VPD_BASE but early cards had
 	 * it at 0.
 	 */
@@ -4433,23 +4443,6 @@ void t4_intr_disable(struct adapter *adapter)
 }
 
 /**
- *	hash_mac_addr - return the hash value of a MAC address
- *	@addr: the 48-bit Ethernet MAC address
- *
- *	Hashes a MAC address according to the hash function used by HW inexact
- *	(hash) address matching.
- */
-static int hash_mac_addr(const u8 *addr)
-{
-	u32 a = ((u32)addr[0] << 16) | ((u32)addr[1] << 8) | addr[2];
-	u32 b = ((u32)addr[3] << 16) | ((u32)addr[4] << 8) | addr[5];
-	a ^= b;
-	a ^= (a >> 12);
-	a ^= (a >> 6);
-	return a & 0x3f;
-}
-
-/**
  *	t4_config_rss_range - configure a portion of the RSS mapping table
  *	@adapter: the adapter
  *	@mbox: mbox to use for the FW command
@@ -6738,6 +6731,81 @@ int t4_alloc_mac_filt(struct adapter *adap, unsigned int mbox,
 }
 
 /**
+ *	t4_free_mac_filt - frees exact-match filters of given MAC addresses
+ *	@adap: the adapter
+ *	@mbox: mailbox to use for the FW command
+ *	@viid: the VI id
+ *	@naddr: the number of MAC addresses to allocate filters for (up to 7)
+ *	@addr: the MAC address(es)
+ *	@sleep_ok: call is allowed to sleep
+ *
+ *	Frees the exact-match filter for each of the supplied addresses
+ *
+ *	Returns a negative error number or the number of filters freed.
+ */
+int t4_free_mac_filt(struct adapter *adap, unsigned int mbox,
+		     unsigned int viid, unsigned int naddr,
+		     const u8 **addr, bool sleep_ok)
+{
+	int offset, ret = 0;
+	struct fw_vi_mac_cmd c;
+	unsigned int nfilters = 0;
+	unsigned int max_naddr = is_t4(adap->params.chip) ?
+				       NUM_MPS_CLS_SRAM_L_INSTANCES :
+				       NUM_MPS_T5_CLS_SRAM_L_INSTANCES;
+	unsigned int rem = naddr;
+
+	if (naddr > max_naddr)
+		return -EINVAL;
+
+	for (offset = 0; offset < (int)naddr ; /**/) {
+		unsigned int fw_naddr = (rem < ARRAY_SIZE(c.u.exact)
+					 ? rem
+					 : ARRAY_SIZE(c.u.exact));
+		size_t len16 = DIV_ROUND_UP(offsetof(struct fw_vi_mac_cmd,
+						     u.exact[fw_naddr]), 16);
+		struct fw_vi_mac_exact *p;
+		int i;
+
+		memset(&c, 0, sizeof(c));
+		c.op_to_viid = cpu_to_be32(FW_CMD_OP_V(FW_VI_MAC_CMD) |
+				     FW_CMD_REQUEST_F |
+				     FW_CMD_WRITE_F |
+				     FW_CMD_EXEC_V(0) |
+				     FW_VI_MAC_CMD_VIID_V(viid));
+		c.freemacs_to_len16 =
+				cpu_to_be32(FW_VI_MAC_CMD_FREEMACS_V(0) |
+					    FW_CMD_LEN16_V(len16));
+
+		for (i = 0, p = c.u.exact; i < (int)fw_naddr; i++, p++) {
+			p->valid_to_idx = cpu_to_be16(
+				FW_VI_MAC_CMD_VALID_F |
+				FW_VI_MAC_CMD_IDX_V(FW_VI_MAC_MAC_BASED_FREE));
+			memcpy(p->macaddr, addr[offset+i], sizeof(p->macaddr));
+		}
+
+		ret = t4_wr_mbox_meat(adap, mbox, &c, sizeof(c), &c, sleep_ok);
+		if (ret)
+			break;
+
+		for (i = 0, p = c.u.exact; i < fw_naddr; i++, p++) {
+			u16 index = FW_VI_MAC_CMD_IDX_G(
+						be16_to_cpu(p->valid_to_idx));
+
+			if (index < max_naddr)
+				nfilters++;
+		}
+
+		offset += fw_naddr;
+		rem -= fw_naddr;
+	}
+
+	if (ret == 0)
+		ret = nfilters;
+	return ret;
+}
+
+/**
  *	t4_change_mac - modifies the exact-match filter for a MAC address
  *	@adap: the adapter
  *	@mbox: mailbox to use for the FW command
@@ -6882,6 +6950,39 @@ int t4_identify_port(struct adapter *adap, unsigned int mbox, unsigned int viid,
 }
 
 /**
+ *	t4_iq_stop - stop an ingress queue and its FLs
+ *	@adap: the adapter
+ *	@mbox: mailbox to use for the FW command
+ *	@pf: the PF owning the queues
+ *	@vf: the VF owning the queues
+ *	@iqtype: the ingress queue type (FW_IQ_TYPE_FL_INT_CAP, etc.)
+ *	@iqid: ingress queue id
+ *	@fl0id: FL0 queue id or 0xffff if no attached FL0
+ *	@fl1id: FL1 queue id or 0xffff if no attached FL1
+ *
+ *	Stops an ingress queue and its associated FLs, if any.  This causes
+ *	any current or future data/messages destined for these queues to be
+ *	tossed.
+ */
+int t4_iq_stop(struct adapter *adap, unsigned int mbox, unsigned int pf,
+	       unsigned int vf, unsigned int iqtype, unsigned int iqid,
+	       unsigned int fl0id, unsigned int fl1id)
+{
+	struct fw_iq_cmd c;
+
+	memset(&c, 0, sizeof(c));
+	c.op_to_vfn = cpu_to_be32(FW_CMD_OP_V(FW_IQ_CMD) | FW_CMD_REQUEST_F |
+				  FW_CMD_EXEC_F | FW_IQ_CMD_PFN_V(pf) |
+				  FW_IQ_CMD_VFN_V(vf));
+	c.alloc_to_len16 = cpu_to_be32(FW_IQ_CMD_IQSTOP_F | FW_LEN16(c));
+	c.type_to_iqandstindex = cpu_to_be32(FW_IQ_CMD_TYPE_V(iqtype));
+	c.iqid = cpu_to_be16(iqid);
+	c.fl0id = cpu_to_be16(fl0id);
+	c.fl1id = cpu_to_be16(fl1id);
+	return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL);
+}
+
+/**
  *	t4_iq_free - free an ingress queue and its FLs
  *	@adap: the adapter
  *	@mbox: mailbox to use for the FW command