ixgbe: add WOL support for X540

Add support for WOL as determined by the EEPROM.

Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

1 files changed, 12 insertions, 2 deletions

diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index fae2f4410333..5f50f1b69cad 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -7074,6 +7074,7 @@ static int __devinit ixgbe_probe(struct pci_dev *pdev,
         u16 device_caps;
 #endif
         u32 eec;
+        u16 wol_cap;
 
         /* Catch broken hardware that put the wrong VF device ID in
          * the PCIe SR-IOV capability.
@@ -7338,6 +7339,8 @@ static int __devinit ixgbe_probe(struct pci_dev *pdev,
                 netdev->features &= ~NETIF_F_RXHASH;
         }
 
+        /* WOL not supported for all but the following */
+        adapter->wol = 0;
         switch (pdev->device) {
         case IXGBE_DEV_ID_82599_SFP:
                 /* Only this subdevice supports WOL */
@@ -7352,8 +7355,15 @@ static int __devinit ixgbe_probe(struct pci_dev *pdev,
         case IXGBE_DEV_ID_82599_KX4:
                 adapter->wol = IXGBE_WUFC_MAG;
                 break;
-        default:
-                adapter->wol = 0;
+        case IXGBE_DEV_ID_X540T:
+                /* Check eeprom to see if it is enabled */
+                hw->eeprom.ops.read(hw, 0x2c, &adapter->eeprom_cap);
+                wol_cap = adapter->eeprom_cap & IXGBE_DEVICE_CAPS_WOL_MASK;
+
+                if ((wol_cap == IXGBE_DEVICE_CAPS_WOL_PORT0_1) ||
+                    ((wol_cap == IXGBE_DEVICE_CAPS_WOL_PORT0) &&
+                     (hw->bus.func == 0)))
+                        adapter->wol = IXGBE_WUFC_MAG;
                 break;
         }
         device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol);