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net: phy: report link partner features through ethtool

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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>
This commit is contained in:
Florian Fainelli
2013-12-06 13:01:30 -08:00
committed by David S. Miller
parent 73713357ab
commit 114002bc1a
3 changed files with 10 additions and 2 deletions
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6
drivers/net/phy/phy_device.c
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@@ -839,6 +839,8 @@ int genphy_read_status(struct phy_device *phydev)
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 @@ int genphy_read_status(struct phy_device *phydev)
if (adv < 0)
return adv;
phydev->lp_advertising =
mii_stat1000_to_ethtool_lpa_t(lpagb);
lpagb &= adv << 2;
}
@@ -860,6 +864,8 @@ int genphy_read_status(struct phy_device *phydev)
if (lpa < 0)
return lpa;
phydev->lp_advertising |= mii_lpa_to_ethtool_lpa_t(lpa);
adv = phy_read(phydev, MII_ADVERTISE);
if (adv < 0)