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r8169: respect EEE user setting when restarting network

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[ Upstream commit 7ec3f872bc85ada93db34448d73bb399d6b82c2c ]

Currently, if network is re-started, we advertise all supported EEE
modes, thus potentially overriding a manual adjustment the user made
e.g. via ethtool. Be friendly to the user and preserve a manual
setting on network re-start.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Heiner Kallweit 2019-11-10 14:44:54 +01:00 committed by Greg Kroah-Hartman
parent 4eab6c4e07
commit 0ed50cdcb5
1 changed files with 15 additions and 3 deletions
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18
drivers/net/ethernet/realtek/r8169_main.c
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@ -680,6 +680,7 @@ struct rtl8169_private {
struct rtl8169_counters *counters;
struct rtl8169_tc_offsets tc_offset;
u32 saved_wolopts;
int eee_adv;
const char *fw_name;
struct rtl_fw *rtl_fw;
@ -2075,6 +2076,10 @@ static int rtl8169_set_eee(struct net_device *dev, struct ethtool_eee *data)
}
ret = phy_ethtool_set_eee(tp->phydev, data);
if (!ret)
tp->eee_adv = phy_read_mmd(dev->phydev, MDIO_MMD_AN,
MDIO_AN_EEE_ADV);
out:
pm_runtime_put_noidle(d);
return ret;
@ -2105,10 +2110,16 @@ static const struct ethtool_ops rtl8169_ethtool_ops = {
static void rtl_enable_eee(struct rtl8169_private *tp)
{
struct phy_device *phydev = tp->phydev;
int supported = phy_read_mmd(phydev, MDIO_MMD_PCS, MDIO_PCS_EEE_ABLE);
int adv;
if (supported > 0)
phy_write_mmd(phydev, MDIO_MMD_AN, MDIO_AN_EEE_ADV, supported);
/* respect EEE advertisement the user may have set */
if (tp->eee_adv >= 0)
adv = tp->eee_adv;
else
adv = phy_read_mmd(phydev, MDIO_MMD_PCS, MDIO_PCS_EEE_ABLE);
if (adv >= 0)
phy_write_mmd(phydev, MDIO_MMD_AN, MDIO_AN_EEE_ADV, adv);
}
static void rtl8169_get_mac_version(struct rtl8169_private *tp)
@ -7064,6 +7075,7 @@ static int rtl_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
tp->pci_dev = pdev;
tp->msg_enable = netif_msg_init(debug.msg_enable, R8169_MSG_DEFAULT);
tp->supports_gmii = ent->driver_data == RTL_CFG_NO_GBIT ? 0 : 1;
tp->eee_adv = -1;
/* Get the *optional* external "ether_clk" used on some boards */
rc = rtl_get_ether_clk(tp);