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ixgbe: Fix 82599 KX4 Wake on LAN issue after an improper system shutdown 

Advanced Power Management is disabled for 82599 KX4 connections by
clearing GRC.APME bit, causing it to not wake the system from an
improper system shutdown. By default GRC.APME is enabled and software
is not supposed to clear these settings during adapter probe.

Signed-off-by: Mallikarjuna R Chilakala <mallikarjuna.chilakala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Mallikarjuna R Chilakala 2010-03-18 15:16:56 +00:00 committed by David S. Miller
parent 1097cd1770
commit 0ecad5a262
1 changed files with 0 additions and 3 deletions
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3
drivers/net/ixgbe/ixgbe_main.c
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@ -6246,9 +6246,6 @@ static int __devinit ixgbe_probe(struct pci_dev *pdev,
case IXGBE_DEV_ID_82599_KX4:
adapter->wol = (IXGBE_WUFC_MAG | IXGBE_WUFC_EX |
IXGBE_WUFC_MC | IXGBE_WUFC_BC);
/* Enable ACPI wakeup in GRC */
IXGBE_WRITE_REG(hw, IXGBE_GRC,
(IXGBE_READ_REG(hw, IXGBE_GRC) & ~IXGBE_GRC_APME));
break;
default:
adapter->wol = 0;