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net: phy: phy_device: Use link_capabilities lookup for PHY aneg config

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When configuring PHY advertising with autoneg disabled, we lookd for an
exact linkmode to advertise and configure for the requested Speed and
Duplex, specially at or over 1G.

Using phy_caps_lookup allows us to build a list of the supported
linkmodes at that speed that we can advertise instead of the first mode
that matches.

Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Link: https://patch.msgid.link/20250307173611.129125-9-maxime.chevallier@bootlin.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This commit is contained in:
Maxime Chevallier 2025-03-07 18:36:05 +01:00 committed by Paolo Abeni
parent fc81e257d1
commit c7ae89c6b4
1 changed files with 6 additions and 5 deletions
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11
drivers/net/phy/phy_device.c
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@ -2120,7 +2120,7 @@ EXPORT_SYMBOL(genphy_check_and_restart_aneg);
int __genphy_config_aneg(struct phy_device *phydev, bool changed)
{
__ETHTOOL_DECLARE_LINK_MODE_MASK(fixed_advert);
const struct phy_setting *set;
const struct link_capabilities *c;
unsigned long *advert;
int err;
@ -2146,10 +2146,11 @@ int __genphy_config_aneg(struct phy_device *phydev, bool changed)
} else {
linkmode_zero(fixed_advert);
set = phy_lookup_setting(phydev->speed, phydev->duplex,
phydev->supported, true);
if (set)
linkmode_set_bit(set->bit, fixed_advert);
c = phy_caps_lookup(phydev->speed, phydev->duplex,
phydev->supported, true);
if (c)
linkmode_and(fixed_advert, phydev->supported,
c->linkmodes);
advert = fixed_advert;
}