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net: phylink: avoid reducing support mask 

Avoid reducing the support mask as a result of the interface type
selected for SFP modules, or when setting the link settings through
ethtool - this should only change when the supported link modes of
the hardware combination change.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Russell King 2019-06-02 15:12:54 +01:00 committed by David S. Miller
parent 28e74a7cfd
commit 7731676332
1 changed files with 9 additions and 4 deletions
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13
drivers/net/phy/phylink.c
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@ -1073,6 +1073,7 @@ EXPORT_SYMBOL_GPL(phylink_ethtool_ksettings_get);
int phylink_ethtool_ksettings_set(struct phylink *pl,
const struct ethtool_link_ksettings *kset)
{
__ETHTOOL_DECLARE_LINK_MODE_MASK(support);
struct ethtool_link_ksettings our_kset;
struct phylink_link_state config;
int ret;
@ -1083,11 +1084,12 @@ int phylink_ethtool_ksettings_set(struct phylink *pl,
kset->base.autoneg != AUTONEG_ENABLE)
return -EINVAL;
linkmode_copy(support, pl->supported);
config = pl->link_config;
/* Mask out unsupported advertisements */
linkmode_and(config.advertising, kset->link_modes.advertising,
pl->supported);
support);
/* FIXME: should we reject autoneg if phy/mac does not support it? */
if (kset->base.autoneg == AUTONEG_DISABLE) {
@ -1097,7 +1099,7 @@ int phylink_ethtool_ksettings_set(struct phylink *pl,
* duplex.
*/
s = phy_lookup_setting(kset->base.speed, kset->base.duplex,
pl->supported, false);
support, false);
if (!s)
return -EINVAL;
@ -1126,7 +1128,7 @@ int phylink_ethtool_ksettings_set(struct phylink *pl,
__set_bit(ETHTOOL_LINK_MODE_Autoneg_BIT, config.advertising);
}
if (phylink_validate(pl, pl->supported, &config))
if (phylink_validate(pl, support, &config))
return -EINVAL;
/* If autonegotiation is enabled, we must have an advertisement */
@ -1576,6 +1578,7 @@ static int phylink_sfp_module_insert(void *upstream,
{
struct phylink *pl = upstream;
__ETHTOOL_DECLARE_LINK_MODE_MASK(support) = { 0, };
__ETHTOOL_DECLARE_LINK_MODE_MASK(support1);
struct phylink_link_state config;
phy_interface_t iface;
int ret = 0;
@ -1603,6 +1606,8 @@ static int phylink_sfp_module_insert(void *upstream,
return ret;
}
linkmode_copy(support1, support);
iface = sfp_select_interface(pl->sfp_bus, id, config.advertising);
if (iface == PHY_INTERFACE_MODE_NA) {
netdev_err(pl->netdev,
@ -1612,7 +1617,7 @@ static int phylink_sfp_module_insert(void *upstream,
}
config.interface = iface;
ret = phylink_validate(pl, support, &config);
ret = phylink_validate(pl, support1, &config);
if (ret) {
netdev_err(pl->netdev, "validation of %s/%s with support %*pb failed: %d\n",
phylink_an_mode_str(MLO_AN_INBAND),