From 7ec3f872bc85ada93db34448d73bb399d6b82c2c Mon Sep 17 00:00:00 2001
From: Heiner Kallweit <hkallweit1@gmail.com>
Date: Sun, 10 Nov 2019 14:44:54 +0100
Subject: [PATCH] r8169: respect EEE user setting when restarting network
Git-commit: 7ec3f872bc85ada93db34448d73bb399d6b82c2c
Patch-mainline: v5.5-rc1
References: bsc#1175746
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>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/net/ethernet/realtek/r8169_main.c | 18 +++++++++++++++---
1 file changed, 15 insertions(+), 3 deletions(-)
diff --git a/drivers/net/ethernet/realtek/r8169_main.c b/drivers/net/ethernet/realtek/r8169_main.c
index d4345493fdba..249b68d00d79 100644
--- a/drivers/net/ethernet/realtek/r8169_main.c
+++ b/drivers/net/ethernet/realtek/r8169_main.c
@@ -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;
@@ -2101,6 +2102,10 @@ 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;
@@ -2131,10 +2136,16 @@ 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;
+
+ /* 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 (supported > 0)
- phy_write_mmd(phydev, MDIO_MMD_AN, MDIO_AN_EEE_ADV, supported);
+ 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)
@@ -6719,6 +6730,7 @@ 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);
--
2.16.4