ixgbe: Add SAN MAC address to the RAR, return the address to DCB

After acquiring the SAN MAC address from the EEPROM, we need to program it
into one of the RARs.  Also, DCB will use this MAC address to run DCBX
commands, so it doesn't have to play musical MAC addresses when things like
bonding enter the picture.  So we need to return the MAC address through
the netlink interface to userspace.

This also moves the init_rx_addrs() call out of start_hw() and into
reset_hw().  We shouldn't try to read any of the RAR information before
initializing our internal accounting of the RAR table, which was what
was happening.

Signed-off-by: Peter P Waskiewicz Jr <[email protected]>
Signed-off-by: Jeff Kirsher <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

diff --git a/drivers/net/ixgbe/ixgbe_82598.c b/drivers/net/ixgbe/ixgbe_82598.c
index e051964347e4dfbfe97a56775c62014e21aedadc..55186dc7dd78275c3743e77ba2f8569aafb404c8 100644 (file)
--- a/drivers/net/ixgbe/ixgbe_82598.c
+++ b/drivers/net/ixgbe/ixgbe_82598.c
@@ -801,6 +801,12 @@ static s32 ixgbe_reset_hw_82598(struct ixgbe_hw *hw)
                IXGBE_WRITE_REG(hw, IXGBE_AUTOC, hw->mac.orig_autoc);
        }
 
+       /*
+        * Store MAC address from RAR0, clear receive address registers, and
+        * clear the multicast table
+        */
+       hw->mac.ops.init_rx_addrs(hw);
+
        /* Store the permanent mac address */
        hw->mac.ops.get_mac_addr(hw, hw->mac.perm_addr);
 

diff --git a/drivers/net/ixgbe/ixgbe_82599.c b/drivers/net/ixgbe/ixgbe_82599.c
index 6bc964fdacbe9b82e5adbe2cce4116912c5b1d46..eaecf5e595c7dd6bfae06b23365eeaa793fe28f1 100644 (file)
--- a/drivers/net/ixgbe/ixgbe_82599.c
+++ b/drivers/net/ixgbe/ixgbe_82599.c
@@ -816,12 +816,29 @@ s32 ixgbe_reset_hw_82599(struct ixgbe_hw *hw)
                }
        }
 
+       /*
+        * Store MAC address from RAR0, clear receive address registers, and
+        * clear the multicast table.  Also reset num_rar_entries to 128,
+        * since we modify this value when programming the SAN MAC address.
+        */
+       hw->mac.num_rar_entries = 128;
+       hw->mac.ops.init_rx_addrs(hw);
+
        /* Store the permanent mac address */
        hw->mac.ops.get_mac_addr(hw, hw->mac.perm_addr);
 
        /* Store the permanent SAN mac address */
        hw->mac.ops.get_san_mac_addr(hw, hw->mac.san_addr);
 
+       /* Add the SAN MAC address to the RAR only if it's a valid address */
+       if (ixgbe_validate_mac_addr(hw->mac.san_addr) == 0) {
+               hw->mac.ops.set_rar(hw, hw->mac.num_rar_entries - 1,
+                                   hw->mac.san_addr, 0, IXGBE_RAH_AV);
+
+               /* Reserve the last RAR for the SAN MAC address */
+               hw->mac.num_rar_entries--;
+       }
+
 reset_hw_out:
        return status;
 }

diff --git a/drivers/net/ixgbe/ixgbe_common.c b/drivers/net/ixgbe/ixgbe_common.c
index 60638e267c61b0f3febc9260e28d623e600c207f..af392758b2b4ed0296cb3f2479e699d78ea3f8e0 100644 (file)
--- a/drivers/net/ixgbe/ixgbe_common.c
+++ b/drivers/net/ixgbe/ixgbe_common.c
@@ -71,12 +71,6 @@ s32 ixgbe_start_hw_generic(struct ixgbe_hw *hw)
        /* Identify the PHY */
        hw->phy.ops.identify(hw);
 
-       /*
-        * Store MAC address from RAR0, clear receive address registers, and
-        * clear the multicast table
-        */
-       hw->mac.ops.init_rx_addrs(hw);
-
        /* Clear the VLAN filter table */
        hw->mac.ops.clear_vfta(hw);
 

diff --git a/drivers/net/ixgbe/ixgbe_dcb_nl.c b/drivers/net/ixgbe/ixgbe_dcb_nl.c
index 99e0c106e671d8777847927756250fc5bcaa57d9..5d5d390f84bf8b58ad6e9468279a2bc94797e5d1 100644 (file)
--- a/drivers/net/ixgbe/ixgbe_dcb_nl.c
+++ b/drivers/net/ixgbe/ixgbe_dcb_nl.c
@@ -155,10 +155,15 @@ static void ixgbe_dcbnl_get_perm_hw_addr(struct net_device *netdev,
                                         u8 *perm_addr)
 {
        struct ixgbe_adapter *adapter = netdev_priv(netdev);
-       int i;
+       int i, j;
 
        for (i = 0; i < netdev->addr_len; i++)
                perm_addr[i] = adapter->hw.mac.perm_addr[i];
+
+       if (adapter->hw.mac.type == ixgbe_mac_82599EB) {
+               for (j = 0; j < netdev->addr_len; j++, i++)
+                       perm_addr[i] = adapter->hw.mac.san_addr[j];
+       }
 }
 
 static void ixgbe_dcbnl_set_pg_tc_cfg_tx(struct net_device *netdev, int tc,