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Date: Wed, 4 Jan 2012 22:23:38 -0800 From: Jeff Kirsher <jeffrey.t.kirsher@...el.com> To: davem@...emloft.net Cc: Koki Sanagi <sanagi.koki@...fujitsu.com>, netdev@...r.kernel.org, gospo@...hat.com, sassmann@...hat.com, Jeff Kirsher <jeffrey.t.kirsher@...el.com> Subject: [net-next 6/8] igb: reset PHY after recovering from PHY power down From: Koki Sanagi <sanagi.koki@...fujitsu.com> 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: Koki Sanagi <sanagi.koki@...fujitsu.com> Tested-by: Aaron Brown <aaron.f.brown@...el.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com> --- drivers/net/ethernet/intel/igb/igb_main.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c index fac71e2..01e5e89 100644 --- a/drivers/net/ethernet/intel/igb/igb_main.c +++ b/drivers/net/ethernet/intel/igb/igb_main.c @@ -1507,6 +1507,7 @@ void igb_power_up_link(struct igb_adapter *adapter) igb_power_up_phy_copper(&adapter->hw); else igb_power_up_serdes_link_82575(&adapter->hw); + igb_reset_phy(&adapter->hw); } /** -- 1.7.7.5 -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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