output from the command:
$ ethtool eno12409
Settings for eno12409:
Supported ports: [ FIBRE ]
Supported link modes: 25000baseCR/Full
Supported pause frame use: Symmetric
Supports auto-negotiation: Yes
Supported FEC modes: None BaseR RS
Advertised link modes: 25000baseCR/Full
Advertised pause frame use: No
Advertised auto-negotiation: Yes
Advertised FEC modes: None BaseR RS
Link partner advertised link modes: Not reported
Link partner advertised pause frame use: No
Link partner advertised auto-negotiation: Yes
Link partner advertised FEC modes: Not reported
Speed: 25000Mb/s
Duplex: Full
Port: Direct Attach Copper
PHYAD: 0
Transceiver: internal
Auto-negotiation: on
Cannot get wake-on-lan settings: Operation not permitted
Current message level: 0x00000007 (7)
drv probe link
Link detected: yes
~$ ethtool -d eno12409
Cannot get register dump: Operation not permitted
ubuntu@C6520-E810-30:~$ sudo ethtool -d eno12409
Offset Values
------ ------
0x0000: 00 00 00 00 03 00 00 00 05 00 00 00 01 08 00 40
0x0010: 01 00 00 40 00 00 39 34 00 00 00 00
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https://bugs.launchpad.net/bugs/1939855
Title:
ice driver causes the kernel to crash with Ubuntu 20.04.2 with ethtool
specific register commands
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