linux-kernel - Failing network hardware

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Message-ID: <ddbed5c6-4ded-df22-fae0-bd256e40d6b3@att.net>
Date:   Sun, 13 Aug 2023 13:53:58 -0500
From:   Leslie Rhorer <lesrhorer@....net>
To:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "netdev@...r.kernel.org Ariel Elior" <aelior@...vell.com>
Cc:     aelior@...vell.com
Subject: Failing network hardware

Hello all,

	About a year or so ago, I upgraded one of my Debian servers to 
Bullseye, and it killed the 10G NIC on the server due to issues with the 
device driver in the Debian repository (it was missing).  I jumped 
through all sorts of loops and hoops to try to get it working, but I 
finally had to give up and resort to using the 1G interface.  Recently, 
I tried a new install on a different server to the new Debian Bookworm, 
and it worked for that server, so apparently the issue has been fixed in 
Bookworm.  I reported a bug against the Buster distribution, but it was 
never fixed.

	With that in mind, I went ahead and upgraded the original server to 
Bookworm, but the NIC remains dead.  Unfortunately, I cannot find my 
notes on what I did originally to try to get the 10G interface working 
and to shut it down in favor of a built-in port.  I do recall I tried 
compiling what was supposed to be the correct firmware driver and also 
changing the udev rules, but I do not recall the exact details.  I have 
tried several things, including re-installing the firmware, but nothing 
seems to work.  The Ethernet interface does not appear on the system in 
order to be able to specify it in /etc/network/interfaces.  What can I 
do in order to try to get the 10G card working?

	The card is an Asus MCB-10G_PEB-10G NIC and uses the bnx2x.ko driver. 
The system uses an Asus AMD-64 motherboard.  The bnx2x.ko driver is 
installed, and lspci shows the card in the system, but ifconfig does not 
see the interface.


root@...D-Server:~# lspci | grep Broadcom
06:00.0 Ethernet controller: Broadcom Inc. and subsidiaries NetXtreme II 
BCM57811 10-Gigabit Ethernet (rev 10)