Commit b8f83638 authored by Don Skidmore's avatar Don Skidmore Committed by Jeff Kirsher
Browse files

ixgbe: Fix 1G link WoL

We reset during the shutdown path which will reset AUTOC register.  This
would change LMS to 10G.  If we were currently linked at 1G we will lose
link, which is a bad thing if we wanted WoL to work.  For the fix I needed
to know if WoL is supported so I created a new bool in the ixgbe_hw struct.
If this is set we will not allow the reset to change the current LMS value
Signed-off-by: default avatarDon Skidmore <>
Tested-by: default avatarPhil Schmitt <>
Signed-off-by: default avatarJeff Kirsher <>
parent 0b2679d6
......@@ -1051,8 +1051,11 @@ mac_reset_top:
/* If MNG FW is running on a multi-speed device that
* doesn't autoneg with out driver support we need to
* leave LMS in the state it was before we MAC reset.
* Likewise if we support WoL we don't want change the
* LMS state either.
if (hw->phy.multispeed_fiber && hw->mng_fw_enabled)
if ((hw->phy.multispeed_fiber && hw->mng_fw_enabled) ||
hw->mac.orig_autoc =
(hw->mac.orig_autoc & ~IXGBE_AUTOC_LMS_MASK) |
......@@ -7526,7 +7526,9 @@ skip_sriov:
/* WOL not supported for all devices */
adapter->wol = 0;
hw->, 0x2c, &adapter->eeprom_cap);
if (ixgbe_wol_supported(adapter, pdev->device, pdev->subsystem_device))
hw->wol_supported = ixgbe_wol_supported(adapter, pdev->device,
if (hw->wol_supported)
adapter->wol = IXGBE_WUFC_MAG;
device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol);
......@@ -2998,6 +2998,7 @@ struct ixgbe_hw {
bool force_full_reset;
bool allow_unsupported_sfp;
bool mng_fw_enabled;
bool wol_supported;
struct ixgbe_info {
Markdown is supported
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment