ixgbe: Fix 82599 multispeed fiber link issues due to Tx laser flapping

[~andy/linux] / drivers / net / ixgbe / ixgbe_main.c

diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c
index 684af371462dc32975f955ef0e96ac8063c09b02..b858a1a79d0eacd9cc8f0bd8472dbcce910c6b7a 100644 (file)
--- a/drivers/net/ixgbe/ixgbe_main.c
+++ b/drivers/net/ixgbe/ixgbe_main.c
@@ -5018,6 +5018,7 @@ static void ixgbe_multispeed_fiber_task(struct work_struct *work)
        autoneg = hw->phy.autoneg_advertised;
        if ((!autoneg) && (hw->mac.ops.get_link_capabilities))
                hw->mac.ops.get_link_capabilities(hw, &autoneg, &negotiation);
+       hw->mac.autotry_restart = false;
        if (hw->mac.ops.setup_link)
                hw->mac.ops.setup_link(hw, autoneg, negotiation, true);
        adapter->flags |= IXGBE_FLAG_NEED_LINK_UPDATE;
@@ -6380,6 +6381,16 @@ static void __devexit ixgbe_remove(struct pci_dev *pdev)
        del_timer_sync(&adapter->sfp_timer);
        cancel_work_sync(&adapter->watchdog_task);
        cancel_work_sync(&adapter->sfp_task);
+       if (adapter->hw.phy.multispeed_fiber) {
+               struct ixgbe_hw *hw = &adapter->hw;
+               /*
+                * Restart clause 37 autoneg, disable and re-enable
+                * the tx laser, to clear & alert the link partner
+                * that it needs to restart autotry
+                */
+               hw->mac.autotry_restart = true;
+               hw->mac.ops.flap_tx_laser(hw);
+       }
        cancel_work_sync(&adapter->multispeed_fiber_task);
        cancel_work_sync(&adapter->sfp_config_module_task);
        if (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE ||