As suggested, this is indeed a bug in the ice kernel driver and not
ethtool. Fixed by:
commit 84cba1840e68430325ac133a11be06bfb2f7acd8
Author: Petr Oros <po...@redhat.com>
Date: Wed Mar 1 21:47:07 2023 +0100
ice: copy last block omitted in ice_get_module_eeprom()
** Package changed: ethtool (Ubuntu) => linux (Ubuntu)
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https://bugs.launchpad.net/bugs/2020917
Title:
ethtool -m produces unreadable output for devices managed by the Intel
ice driver
Status in linux package in Ubuntu:
Incomplete
Bug description:
We have a Supermicro X12SDV-8C-SP6F motherboard with a pair of SFP28
ports managed by an Intel E823-L for SFP controller. On this machine
the SFP28 ports are eno3 and eno4.
When asking ethtool for information about the installed SFP modules,
we get this unhelpful output on Ubuntu Server 22.04 LTS:
sudo ethtool --module-info eno3
Offset Values
------ ------
0x0000: 03 04 07 20 00 00 02 00 00 00 00 06 67 02 0a 64
0x0010: 00 00 00 00 46 53 20 20 20 20 20 20 20 20 20 20
0x0020: 20 20 20 20 00 00 1b 21 53 46 50 2d 31 30 47 4c
0x0030: 52 2d 33 31 20 20 20 20 41 20 20 20 05 1e 00 d3
0x0040: 00 3a 00 00 46 32 30 33 30 33 32 32 36 38 39 20
0x0050: 20 20 20 20 32 32 30 34 30 32 20 20 68 fa 02 f1
0x0060: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0070: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
I suspect this is the same bug that was reported by Red Hat here (access
requires a Red Hat account):
https://access.redhat.com/solutions/6999793
This patch in netdev seems relevant:
https://lore.kernel.org/netdev/20230228204139.2264495-1-po...@redhat.com/T/
If I understand that patch correctly, this might a netdev issue that
was exposed by a change in ethtool. If that's the case, then it's
possible this shouldn't be classified as an ethtool bug, but I figured
I'd start here.
ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: ethtool 1:5.16-1
ProcVersionSignature: Ubuntu 5.15.0-72.79-generic 5.15.98
Uname: Linux 5.15.0-72-generic x86_64
ApportVersion: 2.20.11-0ubuntu82.5
Architecture: amd64
CasperMD5CheckResult: unknown
Date: Fri May 26 17:29:58 2023
ProcEnviron:
SHELL=/bin/bash
LANG=en_US.UTF-8
TERM=xterm
XDG_RUNTIME_DIR=<set>
PATH=(custom, no user)
SourcePackage: ethtool
UpgradeStatus: No upgrade log present (probably fresh install)
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