net: phy: report link partner features through ethtool
The PHY library already reads the MII_STAT1000 and MII_LPA registers in
genphy_read_status(), so extend it to also populate the PHY device link
partner advertised features such that we can feed this back into ethtool
when asked for it in phy_ethtool_gset().
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
index d6447b3..6db3659 100644
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c
@@ -839,6 +839,8 @@
if (err)
return err;
+ phydev->lp_advertising = 0;
+
if (AUTONEG_ENABLE == phydev->autoneg) {
if (phydev->supported & (SUPPORTED_1000baseT_Half
| SUPPORTED_1000baseT_Full)) {
@@ -852,6 +854,8 @@
if (adv < 0)
return adv;
+ phydev->lp_advertising =
+ mii_stat1000_to_ethtool_lpa_t(lpagb);
lpagb &= adv << 2;
}
@@ -860,6 +864,8 @@
if (lpa < 0)
return lpa;
+ phydev->lp_advertising |= mii_lpa_to_ethtool_lpa_t(lpa);
+
adv = phy_read(phydev, MII_ADVERTISE);
if (adv < 0)