| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Date: Thu, 23 Nov 2023 07:42:07 +0000
From: Ivar Simensen <is@...arespons.no>
To: "mkubecek@...e.cz" <mkubecek@...e.cz>, "netdev@...r.kernel.org"
<netdev@...r.kernel.org>
Subject: ethtool module info only reports hex info
Hi
I'm not sure if this is a conscious decision or a bug, but I discovered a change of behavior between version 5.4 an 5.16 according to get module info from a SFP Fiber connector: "ethtool -m ens5".
After upgrading a target from Ubuntu 18.04 to 22.04, I discovered that the ethtool just report a hex dump when I tried to verify my fiber SFP connectors. In 18.04 I got a report with ethtool. I have tried to upgrade from version 5.16 to 6.1 and 6.5, but it did not fix the issue. I then downgraded to version 5.4 and now it works again.
The expected result with "ethtool -m ens5" was to get a human readable report, and with "ethtool -m ens5 hex on" a hexdump.
I have tried with the flag "hex on/off" on 5.16, but the result is always hex dump.
On version 5.4 this flag switches between hex dump and module info report as expected.
Best regards
Ivar Simensen
My target:
Ubuntu 22.04.3 LTS
Kernel 5.15.0-88-generic
Ethtool ver 1:5.16-1
Hex dump result with ethtool 5.16 (and the same with 6.1 and 6.5):
ledtkn2@...tkn2-23420231:~$ sudo ethtool -m ens5
Offset Values
------ ------
0x0000: 02 04 07 04 14 40 02 12 00 01 05 01 1f 00 28 ff
0x0010: 00 00 00 00 43 4f 54 53 57 4f 52 4b 53 20 20 20
0x0020: 20 20 20 20 00 00 00 00 52 4a 33 47 45 58 44 44
0x0030: 50 4c 58 4c 43 52 41 55 30 30 30 30 05 1e 00 fe
0x0040: 10 14 00 00 42 30 35 34 41 41 48 52 20 20 20 20
0x0050: 20 20 20 20 32 33 30 37 32 35 20 20 68 70 08 6e
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
Expected result with ethtool 5.4:
ledtkn2@...tkn2-23420231:~$ sudo ethtool -m ens5
Identifier : 0x02 (module soldered to motherboard)
Extended identifier : 0x04 (GBIC/SFP defined by 2-wire interface ID)
Connector : 0x07 (LC)
Transceiver codes : 0x04 0x14 0x40 0x02 0x12 0x00 0x01 0x05 0x00
Transceiver type : Infiniband: 1X LX
Transceiver type : SONET: SONET reach specifier bit 1
Transceiver type : SONET: OC-48, long reach
Transceiver type : SONET: OC-12, single mode, long reach
Transceiver type : Ethernet: 1000BASE-LX
Transceiver type : FC: long distance (L)
Transceiver type : FC: Longwave laser (LC)
Transceiver type : FC: Single Mode (SM)
Transceiver type : FC: 200 MBytes/sec
Transceiver type : FC: 100 MBytes/sec
Encoding : 0x01 (8B/10B)
BR, Nominal : 3100MBd
Rate identifier : 0x00 (unspecified)
Length (SMF,km) : 40km
Length (SMF) : 25500m
Length (50um) : 0m
Length (62.5um) : 0m
Length (Copper) : 0m
Length (OM3) : 0m
Laser wavelength : 1310nm
Vendor name : COTSWORKS
Vendor OUI : 00:00:00
Vendor PN : RJ3GEXDDPLXLCRAU
Vendor rev : 0000
Option values : 0x10 0x14
Option : RX_LOS implemented, inverted
Option : TX_DISABLE implemented
Option : Paging implemented
BR margin, max : 0%
BR margin, min : 0%
Vendor SN : B054AAHR
Date code : 230725
Optical diagnostics support : Yes
Laser bias current : 28.404 mA
Laser output power : 1.3464 mW / 1.29 dBm
Receiver signal average optical power : 0.0003 mW / -35.23 dBm
Module temperature : 53.79 degrees C / 128.82 degrees F
Module voltage : 3.2860 V
Alarm/warning flags implemented : No
Powered by blists - more mailing lists