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net: bcmgenet: Correct overlaying of PHY and MAC Wake-on-LAN

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Some Wake-on-LAN modes such as WAKE_FILTER may only be supported by the MAC,
while others might be only supported by the PHY. Make sure that the .get_wol()
returns the union of both rather than only that of the PHY if the PHY supports
Wake-on-LAN.

When disabling Wake-on-LAN, make sure that this is done at both the PHY
and MAC level, rather than doing an early return from the PHY driver.

Fixes: 7e400ff35c ("net: bcmgenet: Add support for PHY-based Wake-on-LAN")
Fixes: 9ee09edc05 ("net: bcmgenet: Properly overlay PHY and MAC Wake-on-LAN capabilities")
Signed-off-by: Florian Fainelli <florian.fainelli@broadcom.com>
Link: https://patch.msgid.link/20250129231342.35013-1-florian.fainelli@broadcom.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Florian Fainelli 2025-01-29 15:13:42 -08:00 • committed by Jakub Kicinski
parent c2933b2bef
commit 46ded70923
1 changed files with 12 additions and 4 deletions
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16
drivers/net/ethernet/broadcom/genet/bcmgenet_wol.c
View file

@ -41,9 +41,12 @@ 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;
u32 phy_wolopts = 0;
if (dev->phydev)
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))
@ -51,9 +54,14 @@ void bcmgenet_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
/* Overlay MAC capabilities with that of the PHY queried before */
wol->supported |= WAKE_MAGIC | WAKE_MAGICSECURE | WAKE_FILTER;
wol->wolopts = priv->wolopts;
memset(wol->sopass, 0, sizeof(wol->sopass));
wol->wolopts |= priv->wolopts;
/* Return the PHY configured magic password */
if (phy_wolopts & WAKE_MAGICSECURE)
return;
/* Otherwise the MAC one */
memset(wol->sopass, 0, sizeof(wol->sopass));
if (wol->wolopts & WAKE_MAGICSECURE)
memcpy(wol->sopass, priv->sopass, sizeof(priv->sopass));
}
@ -70,7 +78,7 @@ int bcmgenet_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
/* Try Wake-on-LAN from the PHY first */
if (dev->phydev) {
ret = phy_ethtool_set_wol(dev->phydev, wol);
if (ret != -EOPNOTSUPP)
if (ret != -EOPNOTSUPP && wol->wolopts)
return ret;
}