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r8169: fix packet truncation after S4 resume on RTL8168H/RTL8111H

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After resume from S4 (hibernate), RTL8168H/RTL8111H truncates incoming
packets. Packet captures show messages like "IP truncated-ip - 146 bytes
missing!".

The issue is caused by RxConfig not being properly re-initialized after
resume. Re-initializing the RxConfig register before the chip
re-initialization sequence avoids the truncation and restores correct
packet reception.

This follows the same pattern as commit ef9da46dde ("r8169: fix data
corruption issue on RTL8402").

Fixes: 6e1d0b8988 ("r8169:add support for RTL8168H and RTL8107E")
Signed-off-by: Linmao Li <lilinmao@kylinos.cn>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Heiner Kallweit <hkallweit1@gmail.com>
Link: https://patch.msgid.link/20251009122549.3955845-1-lilinmao@kylinos.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Linmao Li 2025-10-09 20:25:49 +08:00 committed by Jakub Kicinski
parent 25718fdcbd
commit 70f92ab970
1 changed files with 3 additions and 2 deletions
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5
drivers/net/ethernet/realtek/r8169_main.c
View File

@ -4994,8 +4994,9 @@ static int rtl8169_resume(struct device *device)
if (!device_may_wakeup(tp_to_dev(tp)))
clk_prepare_enable(tp->clk);
/* Reportedly at least Asus X453MA truncates packets otherwise */
if (tp->mac_version == RTL_GIGA_MAC_VER_37)
/* Some chip versions may truncate packets without this initialization */
if (tp->mac_version == RTL_GIGA_MAC_VER_37 ||
tp->mac_version == RTL_GIGA_MAC_VER_46)
rtl_init_rxcfg(tp);
return rtl8169_runtime_resume(device);