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Commit e792cd91 authored by Koki Sanagi's avatar Koki Sanagi Committed by Jeff Kirsher
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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: 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>
parent 6cfbd97b

drivers/net/ethernet/intel/e1000e/netdev.c

+7 −0
Original line number Diff line number Diff line
@@ -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

			 */