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r8169: fix network lost after resume on DASH systems

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Device that support DASH may be reseted or powered off during suspend.
So driver needs to handle DASH during system suspend and resume. Or
DASH firmware will influence device behavior and causes network lost.

Fixes: b646d90053 ("r8169: magic.")
Cc: stable@vger.kernel.org
Reviewed-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: ChunHao Lin <hau@realtek.com>
Link: https://lore.kernel.org/r/20231109173400.4573-3-hau@realtek.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
ChunHao Lin 2023-11-10 01:34:00 +08:00 committed by Jakub Kicinski
parent 0ab0c45d8a
commit 868c3b95af
1 changed files with 6 additions and 0 deletions
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6
drivers/net/ethernet/realtek/r8169_main.c
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@ -4661,10 +4661,16 @@ static void rtl8169_down(struct rtl8169_private *tp)
rtl8169_cleanup(tp);
rtl_disable_exit_l1(tp);
rtl_prepare_power_down(tp);
if (tp->dash_type != RTL_DASH_NONE)
rtl8168_driver_stop(tp);
}
static void rtl8169_up(struct rtl8169_private *tp)
{
if (tp->dash_type != RTL_DASH_NONE)
rtl8168_driver_start(tp);
pci_set_master(tp->pci_dev);
phy_init_hw(tp->phydev);
phy_resume(tp->phydev);