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ixgbe: Fix 82599 adapter link flickering issues

소스 검색 
Fix autoneg restart issues in flow control path which might create
endless link flickering due to known timing issues with 82599
adapters.

Signed-off-by: Mallikarjuna R Chilakala <mallikarjuna.chilakakla@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Mallikarjuna R Chilakala
2009-06-04 11:11:13 +00:00
committed by David S. Miller
부모 50ac58ba1d
커밋 620fa036b2
8개의 변경된 파일과 193개의 추가작업 그리고 227개의 파일을 삭제
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28
drivers/net/ixgbe/ixgbe_ethtool.c
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@@ -283,6 +283,7 @@ static int ixgbe_set_pauseparam(struct net_device *netdev,
{
struct ixgbe_adapter *adapter = netdev_priv(netdev);
struct ixgbe_hw *hw = &adapter->hw;
struct ixgbe_fc_info fc;
#ifdef CONFIG_DCB
if (adapter->dcb_cfg.pfc_mode_enable ||
@@ -291,26 +292,37 @@ static int ixgbe_set_pauseparam(struct net_device *netdev,
return -EINVAL;
#endif
fc = hw->fc;
if (pause->autoneg != AUTONEG_ENABLE)
hw->fc.disable_fc_autoneg = true;
fc.disable_fc_autoneg = true;
else
hw->fc.disable_fc_autoneg = false;
fc.disable_fc_autoneg = false;
if (pause->rx_pause && pause->tx_pause)
hw->fc.requested_mode = ixgbe_fc_full;
fc.requested_mode = ixgbe_fc_full;
else if (pause->rx_pause && !pause->tx_pause)
hw->fc.requested_mode = ixgbe_fc_rx_pause;
fc.requested_mode = ixgbe_fc_rx_pause;
else if (!pause->rx_pause && pause->tx_pause)
hw->fc.requested_mode = ixgbe_fc_tx_pause;
fc.requested_mode = ixgbe_fc_tx_pause;
else if (!pause->rx_pause && !pause->tx_pause)
hw->fc.requested_mode = ixgbe_fc_none;
fc.requested_mode = ixgbe_fc_none;
else
return -EINVAL;
#ifdef CONFIG_DCB
adapter->last_lfc_mode = hw->fc.requested_mode;
adapter->last_lfc_mode = fc.requested_mode;
#endif
hw->mac.ops.setup_fc(hw, 0);
/* if the thing changed then we'll update and use new autoneg */
if (memcmp(&fc, &hw->fc, sizeof(struct ixgbe_fc_info))) {
hw->fc = fc;
if (netif_running(netdev))
ixgbe_reinit_locked(adapter);
else
ixgbe_reset(adapter);
}
return 0;
}