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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: Koki Sanagi <sanagi.koki@jp.fujitsu.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Koki Sanagi 2013-02-03 14:03:55 +00:00 committed by Jeff Kirsher
parent 6cfbd97b3e
commit e792cd916c
1 changed files with 7 additions and 0 deletions
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7
drivers/net/ethernet/intel/e1000e/netdev.c
View File

@ -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
*/