FTR: I'm seeing exactly the same behavior when testing with "MT2892
Family [ConnectX-6 Dx]" on 24.04 LTS. Was this actually ever working in
Ubuntu on this hardware model?
ubuntu@romano:~$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 24.04.2 LTS
Release: 24.04
Codename: noble
ubuntu@romano:~$ uname -a
Linux romano 6.8.0-57-generic #59-Ubuntu SMP PREEMPT_DYNAMIC Sat Mar 15
17:40:59 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux
ubuntu@romano:~$ sudo cat /sys/kernel/debug/mlx5/0000:61:00.0/lag/state
disabled
ubuntu@romano:~$ sudo cat /sys/kernel/debug/mlx5/0000:61:00.1/lag/state
disabled
ubuntu@romano:~$ sudo devlink dev eswitch show pci/0000:61:00.0
pci/0000:61:00.0: mode legacy inline-mode none encap-mode basic
ubuntu@romano:~$ sudo devlink dev eswitch show pci/0000:61:00.1
pci/0000:61:00.1: mode legacy inline-mode none encap-mode basic
=> Broken. switchdev & VF-LAG disabled after reboot.
ubuntu@romano:~$ sudo netplan apply --sriov-only
ubuntu@romano:~$ sudo devlink dev eswitch show pci/0000:61:00.1
pci/0000:61:00.1: mode switchdev inline-mode none encap-mode basic
ubuntu@romano:~$ sudo devlink dev eswitch show pci/0000:61:00.0
pci/0000:61:00.0: mode switchdev inline-mode none encap-mode basic
ubuntu@romano:~$ sudo cat /sys/kernel/debug/mlx5/0000:61:00.1/lag/state
active
ubuntu@romano:~$ sudo cat /sys/kernel/debug/mlx5/0000:61:00.0/lag/state
active
=> Fixed state after issuing "netplan apply --sriov-only"
Reference:
ubuntu@romano:~$ sudo netplan get
network:
version: 2
ethernets:
ens13f0np0:
match:
macaddress: "84:16:0c:3d:63:ce"
addresses:
- "10.241.7.26/24"
nameservers:
addresses:
- 10.239.8.12
- 10.239.8.13
- 10.239.8.11
- 10.176.2.3
- 10.176.2.2
- 10.176.2.4
search:
- maas
- dh1-j8-1.tor3-sqa-shared-maas.solutionsqa
- dh1-j8-2.tor3-sqa-shared-maas.solutionsqa
- dh1-j9-1.tor3-sqa-shared-maas.solutionsqa
- dh1-j9-2.tor3-sqa-shared-maas.solutionsqa
gateway4: 10.241.7.1
set-name: "ens13f0np0"
mtu: 1500
ens13f1np1:
match:
macaddress: "84:16:0c:3d:63:cf"
set-name: "ens13f1np1"
mtu: 1500
ens7f0:
match:
macaddress: "b8:3f:d2:2d:68:7e"
optional: true
set-name: "ens7f0"
mtu: 1500
virtual-function-count: 8
embedded-switch-mode: "switchdev"
delay-virtual-functions-rebind: true
ens7f1:
match:
macaddress: "b8:3f:d2:2d:68:7f"
set-name: "ens7f1"
mtu: 1500
virtual-function-count: 8
embedded-switch-mode: "switchdev"
delay-virtual-functions-rebind: true
bonds:
bond0:
interfaces:
- ens7f0
- ens7f1
parameters:
mode: "active-backup"
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https://bugs.launchpad.net/bugs/1988018
Title:
[SRU][mlx5] Intermittent VF-LAG activation failure
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