Commit 1d8e5b0f authored by Jisheng Zhang's avatar Jisheng Zhang Committed by David S. Miller
Browse files

net: stmmac: Support WOL with phy 



Currently, the stmmac driver WOL implementation relies on MAC's PMT
feature. We have a case: the MAC HW doesn't enable PMT, instead, we
rely on the phy to support WOL. Implement the support for this case.

Signed-off-by: default avatarJisheng Zhang <Jisheng.Zhang@synaptics.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent e8377e7a

drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c

+11 −0
Original line number Diff line number Diff line
@@ -600,6 +600,9 @@ static void stmmac_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) 
{

	struct stmmac_priv *priv = netdev_priv(dev);



	if (!priv->plat->pmt)

		return phylink_ethtool_get_wol(priv->phylink, wol);



	mutex_lock(&priv->lock);

	if (device_can_wakeup(priv->device)) {

		wol->supported = WAKE_MAGIC | WAKE_UCAST;
@@ -618,6 +621,14 @@ static int stmmac_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) 
	if (!device_can_wakeup(priv->device))

		return -EOPNOTSUPP;



	if (!priv->plat->pmt) {

		int ret = phylink_ethtool_set_wol(priv->phylink, wol);



		if (!ret)

			device_set_wakeup_enable(&dev->dev, !!wol->wolopts);

		return ret;

	}



	/* By default almost all GMAC devices support the WoL via

	 * magic frame but we can disable it if the HW capability

	 * register shows no support for pmt_magic_frame. */

drivers/net/ethernet/stmicro/stmmac/stmmac_main.c

+4 −0
Original line number Diff line number Diff line
@@ -1075,6 +1075,7 @@ static void stmmac_check_pcs_mode(struct stmmac_priv *priv) 
 */

static int stmmac_init_phy(struct net_device *dev)

{

	struct ethtool_wolinfo wol = { .cmd = ETHTOOL_GWOL };

	struct stmmac_priv *priv = netdev_priv(dev);

	struct device_node *node;

	int ret;
@@ -1100,6 +1101,9 @@ static int stmmac_init_phy(struct net_device *dev) 
		ret = phylink_connect_phy(priv->phylink, phydev);

	}



	phylink_ethtool_get_wol(priv->phylink, &wol);

	device_set_wakeup_capable(priv->device, !!wol.supported);



	return ret;

}

CRA Git | Maintained and supported by SUSTech CRA and CCSE