netdev - issue with ethernet gigabit ethernet card both on stable and rc kernels

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Date:   Fri, 20 Jan 2023 13:58:41 +0100
From:   vmxevilstar@...il.com
To:     nic_swsd@...ltek.com, netdev@...r.kernel.org
Cc:     hkallweit1@...il.com
Subject: issue with ethernet gigabit ethernet card both on stable and rc
 kernels

Dear Mantainers,

I am having an issue with my ethernet card.
It works when the system boots but after around a couple of hours it
disconnects.
I tried different ways to get it working without having to reboot but
nothing else seemed to work.
Even rebooting doesn't solve the problem since again, after a couple of
hours, it stops working again.
I have googled around and found that some people had this same problem
on older kernels but no solution seemed to apply to this rc nor latest
stable kernel versions.
I am probably missing something here.
The issue happened also with recent stable 6.1.7 and rc kernel
versions.
I am actually testing the latest 6.2-rc4 version.

Following are some data I think might be useful but if you feel I
neglected to give enough informations and you need more please just ask
me.

Here some informations about my system :
uname -a
Linux ghost 6.2.0-rc4 #2 SMP PREEMPT_DYNAMIC Tue Jan 17 13:35:46 CET
2023 x86_64 GNU/Linux

gcc --version
gcc (Debian 12.2.0-14) 12.2.0
Copyright (C) 2022 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is
NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE.

/usr/src# lspci|grep -i net
02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8125
2.5GbE Controller (rev 05)

description: Ethernet interface
product: RTL8125 2.5GbE Controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@...0:02:00.0
logical name: enp2s0
version: ff
serial: b0:25:aa:49:a5:3a
size: 1Gbit/s
capacity: 1Gbit/s
width: 32 bits
clock: 66MHz
capabilities: bus_master vga_palette cap_list ethernet physical tp mii
10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8169
driverversion=6.2.0-rc4 duplex=full firmware=rtl8125b-2_0.0.2 07/13/20
latency=255 link=yes maxlatency=255 mingnt=255 multicast=yes
port=twisted pair speed=1Gbit/s

lsmod|grep r8169
r8169                 110592  0
mdio_devres            16384  1 r8169
libphy                200704  3 r8169,mdio_devres,realtek

the firmware version I am using is linux-firmware-20221214.tar.gz

Here you can find what happens (dmesg -wT)
[Fri Jan 20 11:04:32 2023] userif-3: sent link up event.

[Fri Jan 20 13:19:41 2023] r8169 0000:02:00.0 enp2s0: rtl_chipcmd_cond
== 1 (loop: 100, delay: 100).
[Fri Jan 20 13:19:41 2023] r8169 0000:02:00.0 enp2s0: rtl_ephyar_cond
== 1 (loop: 100, delay: 10).
[Fri Jan 20 13:19:41 2023] r8169 0000:02:00.0 enp2s0: rtl_ephyar_cond
== 1 (loop: 100, delay: 10).
[Fri Jan 20 13:19:41 2023] r8169 0000:02:00.0 enp2s0: rtl_ephyar_cond
== 1 (loop: 100, delay: 10).
[Fri Jan 20 13:19:41 2023] r8169 0000:02:00.0 enp2s0: rtl_ephyar_cond
== 1 (loop: 100, delay: 10).
[Fri Jan 20 13:19:41 2023] r8169 0000:02:00.0 enp2s0: rtl_ephyar_cond
== 1 (loop: 100, delay: 10).
[Fri Jan 20 13:19:41 2023] r8169 0000:02:00.0 enp2s0: rtl_ephyar_cond
== 1 (loop: 100, delay: 10).
[Fri Jan 20 13:19:41 2023] r8169 0000:02:00.0 enp2s0:
rtl_mac_ocp_e00e_cond == 1 (loop: 10, delay: 1000).
[Fri Jan 20 13:20:17 2023] r8169 0000:02:00.0 enp2s0: rtl_chipcmd_cond
== 1 (loop: 100, delay: 100).
[Fri Jan 20 13:20:17 2023] r8169 0000:02:00.0 enp2s0: rtl_ephyar_cond
== 1 (loop: 100, delay: 10).
[Fri Jan 20 13:20:17 2023] r8169 0000:02:00.0 enp2s0: rtl_ephyar_cond
== 1 (loop: 100, delay: 10).
[Fri Jan 20 13:20:17 2023] r8169 0000:02:00.0 enp2s0: rtl_ephyar_cond
== 1 (loop: 100, delay: 10).
[Fri Jan 20 13:20:17 2023] r8169 0000:02:00.0 enp2s0: rtl_ephyar_cond
== 1 (loop: 100, delay: 10).
[Fri Jan 20 13:20:17 2023] r8169 0000:02:00.0 enp2s0: rtl_ephyar_cond
== 1 (loop: 100, delay: 10).
[Fri Jan 20 13:20:17 2023] r8169 0000:02:00.0 enp2s0: rtl_ephyar_cond
== 1 (loop: 100, delay: 10).
[Fri Jan 20 13:20:18 2023] r8169 0000:02:00.0 enp2s0:
rtl_mac_ocp_e00e_cond == 1 (loop: 10, delay: 1000).

I would love to provide a patch of any kind but I am afraid I don't
have enough programming skills.

Thanks in advance for your time.