From e792cd916cf74315bddb2c8b2323ef498cd7bfde Mon Sep 17 00:00:00 2001 From: Koki Sanagi Date: Sun, 3 Feb 2013 14:03:55 +0000 Subject: [PATCH] e1000e: display a warning message when SmartSpeed works Current e1000e 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 e1000e notify users that SmartSpeed worked. Signed-off-by: Koki Sanagi Tested-by: Aaron Brown Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/e1000e/netdev.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/net/ethernet/intel/e1000e/netdev.c b/drivers/net/ethernet/intel/e1000e/netdev.c index 3f7dbd1..a177b8b 100644 --- a/drivers/net/ethernet/intel/e1000e/netdev.c +++ b/drivers/net/ethernet/intel/e1000e/netdev.c @@ -4830,6 +4830,13 @@ static void e1000_watchdog_task(struct work_struct *work) &adapter->link_speed, &adapter->link_duplex); e1000_print_link_info(adapter); + + /* check if SmartSpeed worked */ + e1000e_check_downshift(hw); + if (phy->speed_downgraded) + netdev_warn(netdev, + "Link Speed was downgraded by SmartSpeed\n"); + /* On supported PHYs, check for duplex mismatch only * if link has autonegotiated at 10/100 half */ -- 2.7.4