From 0ecad5a262923967147e2d1725e277a2a5fbcdd4 Mon Sep 17 00:00:00 2001
From: Mallikarjuna R Chilakala <mallikarjuna.chilakala@intel.com>
Date: Thu, 18 Mar 2010 15:16:56 +0000
Subject: 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>

diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c
index b858a1a..18b5b21 100644
--- a/drivers/net/ixgbe/ixgbe_main.c
+++ b/drivers/net/ixgbe/ixgbe_main.c
@@ -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;
-- 
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