Commit 7e400ff3 authored by Florian Fainelli's avatar Florian Fainelli Committed by David S. Miller
Browse files

net: bcmgenet: Add support for PHY-based Wake-on-LAN 



If available, interrogate the PHY to find out whether we can use it for
Wake-on-LAN. This can be a more power efficient way of implementing
that feature, especially when the MAC is powered off in low power
states.

Reviewed-by: default avatarSimon Horman <simon.horman@corigine.com>
Signed-off-by: default avatarFlorian Fainelli <f.fainelli@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 8baddaa9

drivers/net/ethernet/broadcom/genet/bcmgenet_wol.c

+14 −0
Original line number Diff line number Diff line
@@ -42,6 +42,12 @@ void bcmgenet_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) 
	struct bcmgenet_priv *priv = netdev_priv(dev);

	struct device *kdev = &priv->pdev->dev;



	if (dev->phydev) {

		phy_ethtool_get_wol(dev->phydev, wol);

		if (wol->supported)

			return;

	}



	if (!device_can_wakeup(kdev)) {

		wol->supported = 0;

		wol->wolopts = 0;
@@ -63,6 +69,14 @@ int bcmgenet_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) 
{

	struct bcmgenet_priv *priv = netdev_priv(dev);

	struct device *kdev = &priv->pdev->dev;

	int ret;



	/* Try Wake-on-LAN from the PHY first */

	if (dev->phydev) {

		ret = phy_ethtool_set_wol(dev->phydev, wol);

		if (ret != -EOPNOTSUPP)

			return ret;

	}



	if (!device_can_wakeup(kdev))

		return -ENOTSUPP;