forked from Minki/linux
Merge branch 'realtek-EEE'
Heiner Kallweit says: ==================== net: phy: realtek: map vendor-specific EEE registers to standard MMD registers EEE-related registers on newer integrated PHY's have the standard layout, but are accessible not via MMD but via vendor-specific registers. Emulating the standard MMD registers allows to use the generic functions for EEE control and to significantly simplify the r8169 driver. v2: - rebase patch 2 ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller
commit
d700d26418
@ -733,6 +733,13 @@ static bool rtl_is_8168evl_up(struct rtl8169_private *tp)
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tp->mac_version != RTL_GIGA_MAC_VER_39;
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}
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static bool rtl_supports_eee(struct rtl8169_private *tp)
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{
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return tp->mac_version >= RTL_GIGA_MAC_VER_34 &&
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tp->mac_version != RTL_GIGA_MAC_VER_37 &&
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tp->mac_version != RTL_GIGA_MAC_VER_39;
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}
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struct rtl_cond {
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bool (*check)(struct rtl8169_private *);
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const char *msg;
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@ -1945,144 +1952,40 @@ static int rtl_set_coalesce(struct net_device *dev, struct ethtool_coalesce *ec)
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return 0;
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}
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static int rtl_get_eee_supp(struct rtl8169_private *tp)
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{
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struct phy_device *phydev = tp->phydev;
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int ret;
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switch (tp->mac_version) {
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case RTL_GIGA_MAC_VER_34:
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case RTL_GIGA_MAC_VER_35:
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case RTL_GIGA_MAC_VER_36:
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case RTL_GIGA_MAC_VER_38:
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ret = phy_read_mmd(phydev, MDIO_MMD_PCS, MDIO_PCS_EEE_ABLE);
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break;
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case RTL_GIGA_MAC_VER_40 ... RTL_GIGA_MAC_VER_51:
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ret = phy_read_paged(phydev, 0x0a5c, 0x12);
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break;
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default:
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ret = -EPROTONOSUPPORT;
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break;
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}
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return ret;
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}
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static int rtl_get_eee_lpadv(struct rtl8169_private *tp)
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{
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struct phy_device *phydev = tp->phydev;
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int ret;
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switch (tp->mac_version) {
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case RTL_GIGA_MAC_VER_34:
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case RTL_GIGA_MAC_VER_35:
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case RTL_GIGA_MAC_VER_36:
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case RTL_GIGA_MAC_VER_38:
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ret = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_AN_EEE_LPABLE);
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break;
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case RTL_GIGA_MAC_VER_40 ... RTL_GIGA_MAC_VER_51:
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ret = phy_read_paged(phydev, 0x0a5d, 0x11);
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break;
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default:
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ret = -EPROTONOSUPPORT;
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break;
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}
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return ret;
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}
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static int rtl_get_eee_adv(struct rtl8169_private *tp)
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{
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struct phy_device *phydev = tp->phydev;
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int ret;
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switch (tp->mac_version) {
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case RTL_GIGA_MAC_VER_34:
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case RTL_GIGA_MAC_VER_35:
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case RTL_GIGA_MAC_VER_36:
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case RTL_GIGA_MAC_VER_38:
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ret = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_AN_EEE_ADV);
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break;
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case RTL_GIGA_MAC_VER_40 ... RTL_GIGA_MAC_VER_51:
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ret = phy_read_paged(phydev, 0x0a5d, 0x10);
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break;
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default:
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ret = -EPROTONOSUPPORT;
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break;
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}
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return ret;
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}
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static int rtl_set_eee_adv(struct rtl8169_private *tp, int val)
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{
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struct phy_device *phydev = tp->phydev;
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int ret = 0;
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switch (tp->mac_version) {
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case RTL_GIGA_MAC_VER_34:
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case RTL_GIGA_MAC_VER_35:
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case RTL_GIGA_MAC_VER_36:
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case RTL_GIGA_MAC_VER_38:
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ret = phy_write_mmd(phydev, MDIO_MMD_AN, MDIO_AN_EEE_ADV, val);
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break;
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case RTL_GIGA_MAC_VER_40 ... RTL_GIGA_MAC_VER_51:
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phy_write_paged(phydev, 0x0a5d, 0x10, val);
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break;
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default:
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ret = -EPROTONOSUPPORT;
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break;
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}
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return ret;
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}
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static int rtl8169_get_eee(struct net_device *dev, struct ethtool_eee *data)
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{
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struct rtl8169_private *tp = netdev_priv(dev);
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struct device *d = tp_to_dev(tp);
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int ret;
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if (!rtl_supports_eee(tp))
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return -EOPNOTSUPP;
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pm_runtime_get_noresume(d);
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if (!pm_runtime_active(d)) {
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ret = -EOPNOTSUPP;
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goto out;
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} else {
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ret = phy_ethtool_get_eee(tp->phydev, data);
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}
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/* Get Supported EEE */
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ret = rtl_get_eee_supp(tp);
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if (ret < 0)
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goto out;
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data->supported = mmd_eee_cap_to_ethtool_sup_t(ret);
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/* Get advertisement EEE */
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ret = rtl_get_eee_adv(tp);
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if (ret < 0)
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goto out;
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data->advertised = mmd_eee_adv_to_ethtool_adv_t(ret);
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data->eee_enabled = !!data->advertised;
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/* Get LP advertisement EEE */
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ret = rtl_get_eee_lpadv(tp);
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if (ret < 0)
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goto out;
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data->lp_advertised = mmd_eee_adv_to_ethtool_adv_t(ret);
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data->eee_active = !!(data->advertised & data->lp_advertised);
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out:
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pm_runtime_put_noidle(d);
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return ret < 0 ? ret : 0;
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return ret;
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}
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static int rtl8169_set_eee(struct net_device *dev, struct ethtool_eee *data)
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{
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struct rtl8169_private *tp = netdev_priv(dev);
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struct device *d = tp_to_dev(tp);
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int old_adv, adv = 0, cap, ret;
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int ret;
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if (!rtl_supports_eee(tp))
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return -EOPNOTSUPP;
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pm_runtime_get_noresume(d);
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if (!dev->phydev || !pm_runtime_active(d)) {
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if (!pm_runtime_active(d)) {
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ret = -EOPNOTSUPP;
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goto out;
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}
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@ -2093,38 +1996,10 @@ static int rtl8169_set_eee(struct net_device *dev, struct ethtool_eee *data)
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goto out;
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}
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/* Get Supported EEE */
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ret = rtl_get_eee_supp(tp);
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if (ret < 0)
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goto out;
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cap = ret;
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ret = rtl_get_eee_adv(tp);
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if (ret < 0)
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goto out;
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old_adv = ret;
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if (data->eee_enabled) {
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adv = !data->advertised ? cap :
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ethtool_adv_to_mmd_eee_adv_t(data->advertised) & cap;
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/* Mask prohibited EEE modes */
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adv &= ~dev->phydev->eee_broken_modes;
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}
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if (old_adv != adv) {
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ret = rtl_set_eee_adv(tp, adv);
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if (ret < 0)
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goto out;
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/* Restart autonegotiation so the new modes get sent to the
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* link partner.
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*/
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ret = phy_restart_aneg(dev->phydev);
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}
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ret = phy_ethtool_set_eee(tp->phydev, data);
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out:
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pm_runtime_put_noidle(d);
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return ret < 0 ? ret : 0;
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return ret;
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}
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static const struct ethtool_ops rtl8169_ethtool_ops = {
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@ -2151,10 +2026,11 @@ static const struct ethtool_ops rtl8169_ethtool_ops = {
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static void rtl_enable_eee(struct rtl8169_private *tp)
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{
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int supported = rtl_get_eee_supp(tp);
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struct phy_device *phydev = tp->phydev;
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int supported = phy_read_mmd(phydev, MDIO_MMD_PCS, MDIO_PCS_EEE_ABLE);
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if (supported > 0)
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rtl_set_eee_adv(tp, supported);
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phy_write_mmd(phydev, MDIO_MMD_AN, MDIO_AN_EEE_ADV, supported);
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}
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static void rtl8169_get_mac_version(struct rtl8169_private *tp)
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@ -266,6 +266,45 @@ static int rtl8366rb_config_init(struct phy_device *phydev)
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return ret;
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}
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static int rtlgen_read_mmd(struct phy_device *phydev, int devnum, u16 regnum)
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{
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int ret;
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if (devnum == MDIO_MMD_PCS && regnum == MDIO_PCS_EEE_ABLE) {
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rtl821x_write_page(phydev, 0xa5c);
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ret = __phy_read(phydev, 0x12);
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rtl821x_write_page(phydev, 0);
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} else if (devnum == MDIO_MMD_AN && regnum == MDIO_AN_EEE_ADV) {
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rtl821x_write_page(phydev, 0xa5d);
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ret = __phy_read(phydev, 0x10);
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rtl821x_write_page(phydev, 0);
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} else if (devnum == MDIO_MMD_AN && regnum == MDIO_AN_EEE_LPABLE) {
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rtl821x_write_page(phydev, 0xa5d);
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ret = __phy_read(phydev, 0x11);
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rtl821x_write_page(phydev, 0);
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} else {
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ret = -EOPNOTSUPP;
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}
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return ret;
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}
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static int rtlgen_write_mmd(struct phy_device *phydev, int devnum, u16 regnum,
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u16 val)
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{
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int ret;
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if (devnum == MDIO_MMD_AN && regnum == MDIO_AN_EEE_ADV) {
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rtl821x_write_page(phydev, 0xa5d);
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ret = __phy_write(phydev, 0x10, val);
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rtl821x_write_page(phydev, 0);
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} else {
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ret = -EOPNOTSUPP;
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}
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return ret;
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}
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static int rtl8125_get_features(struct phy_device *phydev)
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{
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int val;
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@ -422,6 +461,8 @@ static struct phy_driver realtek_drvs[] = {
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.resume = genphy_resume,
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.read_page = rtl821x_read_page,
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.write_page = rtl821x_write_page,
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.read_mmd = rtlgen_read_mmd,
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.write_mmd = rtlgen_write_mmd,
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}, {
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.name = "RTL8125 2.5Gbps internal",
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.match_phy_device = rtl8125_match_phy_device,
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@ -432,6 +473,8 @@ static struct phy_driver realtek_drvs[] = {
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.resume = genphy_resume,
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.read_page = rtl821x_read_page,
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.write_page = rtl821x_write_page,
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.read_mmd = rtlgen_read_mmd,
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.write_mmd = rtlgen_write_mmd,
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}, {
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PHY_ID_MATCH_EXACT(0x001cc961),
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.name = "RTL8366RB Gigabit Ethernet",
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