Messages in this thread Patch in this message | | | From | Florian Fainelli <> | Subject | [PATCH net-next v3 3/3] net: bcmgenet: Add support for PHY-based Wake-on-LAN | Date | Thu, 11 May 2023 10:21:10 -0700 |
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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: Simon Horman <simon.horman@corigine.com> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> --- drivers/net/ethernet/broadcom/genet/bcmgenet_wol.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+)
diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet_wol.c b/drivers/net/ethernet/broadcom/genet/bcmgenet_wol.c index 3a4b6cb7b7b9..7a41cad5788f 100644 --- a/drivers/net/ethernet/broadcom/genet/bcmgenet_wol.c +++ b/drivers/net/ethernet/broadcom/genet/bcmgenet_wol.c @@ -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; -- 2.34.1
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