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>
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@ -289,6 +289,7 @@ int phy_ethtool_gset(struct phy_device *phydev, struct ethtool_cmd *cmd)
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cmd->supported = phydev->supported;
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cmd->advertising = phydev->advertising;
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cmd->lp_advertising = phydev->lp_advertising;
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ethtool_cmd_speed_set(cmd, phydev->speed);
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cmd->duplex = phydev->duplex;
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@ -839,6 +839,8 @@ int genphy_read_status(struct phy_device *phydev)
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if (err)
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return err;
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phydev->lp_advertising = 0;
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if (AUTONEG_ENABLE == phydev->autoneg) {
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if (phydev->supported & (SUPPORTED_1000baseT_Half
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| SUPPORTED_1000baseT_Full)) {
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@ -852,6 +854,8 @@ int genphy_read_status(struct phy_device *phydev)
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if (adv < 0)
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return adv;
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phydev->lp_advertising =
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mii_stat1000_to_ethtool_lpa_t(lpagb);
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lpagb &= adv << 2;
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}
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@ -860,6 +864,8 @@ int genphy_read_status(struct phy_device *phydev)
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if (lpa < 0)
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return lpa;
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phydev->lp_advertising |= mii_lpa_to_ethtool_lpa_t(lpa);
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adv = phy_read(phydev, MII_ADVERTISE);
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if (adv < 0)
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@ -287,8 +287,8 @@ struct phy_c45_device_ids {
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* adjust_state: Callback for the enet driver to respond to
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* changes in the state machine.
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*
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* speed, duplex, pause, supported, advertising, and
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* autoneg are used like in mii_if_info
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* speed, duplex, pause, supported, advertising, lp_advertising,
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* and autoneg are used like in mii_if_info
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*
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* interrupts currently only supports enabled or disabled,
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* but could be changed in the future to support enabling
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@ -340,6 +340,7 @@ struct phy_device {
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/* See mii.h for more info */
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u32 supported;
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u32 advertising;
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u32 lp_advertising;
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int autoneg;
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