igb: add support for wake-on-link

This adds support for wake-on-link/phy activity to the ethtool
interface.

Signed-off-by: Nicholas Nunley <nicholasx.d.nunley@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/igb/igb_ethtool.c b/drivers/net/igb/igb_ethtool.c
index f771a6c..145a8eb 100644 (file)
--- a/drivers/net/igb/igb_ethtool.c
+++ b/drivers/net/igb/igb_ethtool.c
@@ -1812,7 +1812,8 @@ static void igb_get_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
        struct igb_adapter *adapter = netdev_priv(netdev);
 
        wol->supported = WAKE_UCAST | WAKE_MCAST |
-                        WAKE_BCAST | WAKE_MAGIC;
+                        WAKE_BCAST | WAKE_MAGIC |
+                        WAKE_PHY;
        wol->wolopts = 0;
 
        /* this function will set ->supported = 0 and return 1 if wol is not
@@ -1835,15 +1836,15 @@ static void igb_get_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
                wol->wolopts |= WAKE_BCAST;
        if (adapter->wol & E1000_WUFC_MAG)
                wol->wolopts |= WAKE_MAGIC;
-
-       return;
+       if (adapter->wol & E1000_WUFC_LNKC)
+               wol->wolopts |= WAKE_PHY;
 }
 
 static int igb_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
 {
        struct igb_adapter *adapter = netdev_priv(netdev);
 
-       if (wol->wolopts & (WAKE_PHY | WAKE_ARP | WAKE_MAGICSECURE))
+       if (wol->wolopts & (WAKE_ARP | WAKE_MAGICSECURE))
                return -EOPNOTSUPP;
 
        if (igb_wol_exclusion(adapter, wol) ||
@@ -1861,6 +1862,8 @@ static int igb_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
                adapter->wol |= E1000_WUFC_BC;
        if (wol->wolopts & WAKE_MAGIC)
                adapter->wol |= E1000_WUFC_MAG;
+       if (wol->wolopts & WAKE_PHY)
+               adapter->wol |= E1000_WUFC_LNKC;
        device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol);
 
        return 0;