diff options
| author | Florian Fainelli <florian.fainelli@broadcom.com> | 2025-10-13 10:23:06 -0700 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2025-10-15 17:45:52 -0700 |
| commit | e1f5bb196f0b0eee197e06d361f8ac5f091c2963 (patch) | |
| tree | 099a36cfbf87ab91e470bcd7d996d58e0e4def66 | |
| parent | e5b670e5439bda09ea7e3dd3dd32edb2f367c0d3 (diff) | |
| download | linux-e1f5bb196f0b0eee197e06d361f8ac5f091c2963.tar.gz linux-e1f5bb196f0b0eee197e06d361f8ac5f091c2963.zip | |
net: bcmasp: 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.
Signed-off-by: Florian Fainelli <florian.fainelli@broadcom.com>
Link: https://patch.msgid.link/20251013172306.2250223-1-florian.fainelli@broadcom.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
| -rw-r--r-- | drivers/net/ethernet/broadcom/asp2/bcmasp_ethtool.c | 34 |
1 files changed, 32 insertions, 2 deletions
diff --git a/drivers/net/ethernet/broadcom/asp2/bcmasp_ethtool.c b/drivers/net/ethernet/broadcom/asp2/bcmasp_ethtool.c index 63f1a8c3a7fb..dd80ccfca19d 100644 --- a/drivers/net/ethernet/broadcom/asp2/bcmasp_ethtool.c +++ b/drivers/net/ethernet/broadcom/asp2/bcmasp_ethtool.c @@ -163,11 +163,30 @@ static void bcmasp_set_msglevel(struct net_device *dev, u32 level) static void bcmasp_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) { struct bcmasp_intf *intf = netdev_priv(dev); + struct bcmasp_priv *priv = intf->parent; + struct device *kdev = &priv->pdev->dev; + u32 phy_wolopts = 0; + + if (dev->phydev) { + phy_ethtool_get_wol(dev->phydev, wol); + phy_wolopts = wol->wolopts; + } + + /* MAC is not wake-up capable, return what the PHY does */ + if (!device_can_wakeup(kdev)) + return; + + /* Overlay MAC capabilities with that of the PHY queried before */ + wol->supported |= BCMASP_SUPPORTED_WAKE; + wol->wolopts |= intf->wolopts; + + /* Return the PHY configured magic password */ + if (phy_wolopts & WAKE_MAGICSECURE) + return; - wol->supported = BCMASP_SUPPORTED_WAKE; - wol->wolopts = intf->wolopts; memset(wol->sopass, 0, sizeof(wol->sopass)); + /* Otherwise the MAC one */ if (wol->wolopts & WAKE_MAGICSECURE) memcpy(wol->sopass, intf->sopass, sizeof(intf->sopass)); } @@ -177,10 +196,21 @@ static int bcmasp_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) struct bcmasp_intf *intf = netdev_priv(dev); struct bcmasp_priv *priv = intf->parent; struct device *kdev = &priv->pdev->dev; + int ret = 0; + + /* Try Wake-on-LAN from the PHY first */ + if (dev->phydev) { + ret = phy_ethtool_set_wol(dev->phydev, wol); + if (ret != -EOPNOTSUPP && wol->wolopts) + return ret; + } if (!device_can_wakeup(kdev)) return -EOPNOTSUPP; + if (wol->wolopts & ~BCMASP_SUPPORTED_WAKE) + return -EINVAL; + /* Interface Specific */ intf->wolopts = wol->wolopts; if (intf->wolopts & WAKE_MAGICSECURE) |