Commit a95a0744 authored by Koki Sanagi's avatar Koki Sanagi Committed by David S. Miller

igb: reset PHY after recovering from PHY power down

According to 82576_Datasheet.pdf, PHY setting is lost after PHY power down.
So resetting PHY is needed when recovering from PHY power down to set a default
setting to PHY register.
Owing to this lack, NIC doesn't link up in some rare situation.
Signed-off-by: default avatarKoki Sanagi <sanagi.koki@jp.fujitsu.com>
Tested-by: default avatarAaron Brown <aaron.f.brown@intel.com>
Signed-off-by: default avatarJeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 749ab2cd
...@@ -1507,6 +1507,7 @@ void igb_power_up_link(struct igb_adapter *adapter) ...@@ -1507,6 +1507,7 @@ void igb_power_up_link(struct igb_adapter *adapter)
igb_power_up_phy_copper(&adapter->hw); igb_power_up_phy_copper(&adapter->hw);
else else
igb_power_up_serdes_link_82575(&adapter->hw); igb_power_up_serdes_link_82575(&adapter->hw);
igb_reset_phy(&adapter->hw);
} }
/** /**
......
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