From c0ba477807191d04f95057a58e08c88ad27b284c Mon Sep 17 00:00:00 2001 From: Koki Sanagi Date: Wed, 16 Jan 2013 11:05:53 +0000 Subject: [PATCH] igb: display a warning message when SmartSpeed works Current igb driver doesn't tell nothing when Link Speed is downgraded due to SmartSpeed. As a result, users suspect that there is something wrong with NIC. If the cause of it is SmartSpeed, there is no means to replace NIC. This patch make igb notify users that SmartSpeed worked. Signed-off-by: Koki Sanagi Tested-by: Aaron Brown Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/igb/igb_main.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c index b94a3c5..93be6ec 100644 --- a/drivers/net/ethernet/intel/igb/igb_main.c +++ b/drivers/net/ethernet/intel/igb/igb_main.c @@ -3901,6 +3901,7 @@ static void igb_watchdog_task(struct work_struct *work) struct igb_adapter, watchdog_task); struct e1000_hw *hw = &adapter->hw; + struct e1000_phy_info *phy = &hw->phy; struct net_device *netdev = adapter->netdev; u32 link; int i; @@ -3929,6 +3930,11 @@ static void igb_watchdog_task(struct work_struct *work) (ctrl & E1000_CTRL_RFCE) ? "RX" : (ctrl & E1000_CTRL_TFCE) ? "TX" : "None"); + /* check if SmartSpeed worked */ + igb_check_downshift(hw); + if (phy->speed_downgraded) + netdev_warn(netdev, "Link Speed was downgraded by SmartSpeed\n"); + /* check for thermal sensor event */ if (igb_thermal_sensor_event(hw, E1000_THSTAT_LINK_THROTTLE)) { -- 2.7.4