** Merge proposal linked: https://code.launchpad.net/~danilogondolfo/netplan/+git/ubuntu/+merge/474659
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1988018 Title: [mlx5] Intermittent VF-LAG activation failure Status in linux package in Ubuntu: Fix Committed Status in netplan.io package in Ubuntu: Fix Released Status in linux source package in Jammy: New Status in netplan.io source package in Jammy: In Progress Status in linux source package in Kinetic: Won't Fix Status in netplan.io source package in Kinetic: Won't Fix Status in linux source package in Mantic: Won't Fix Status in netplan.io source package in Mantic: Won't Fix Status in linux source package in Noble: Fix Committed Status in netplan.io source package in Noble: Fix Released Bug description: During system initialization there is a specific sequence that must be followed to enable the use of hardware offload and VF-LAG. Intermittently one may see that VF-LAG initialization fails: [Thu Jul 21 10:54:58 2022] mlx5_core 0000:08:00.0: lag map port 1:1 port 2:2 shared_fdb:1 [Thu Jul 21 10:54:58 2022] mlx5_core 0000:08:00.0: mlx5_cmd_check:782:(pid 9): CREATE_LAG(0x840) op_mod(0x0) failed, status bad parameter(0x3), syndrome (0x7d49cb) [Thu Jul 21 10:54:58 2022] mlx5_core 0000:08:00.0: mlx5_create_lag:248:(pid 9): Failed to create LAG (-22) [Thu Jul 21 10:54:58 2022] mlx5_core 0000:08:00.0: mlx5_activate_lag:288:(pid 9): Failed to activate VF LAG Make sure all VFs are unbound prior to VF LAG activation or deactivation This is caused by rebinding the driver prior to the VF lag being ready. A sysfs knob has recently been added to the driver [0] and we should monitor it before attempting to rebind the driver: $ cat /sys/kernel/debug/mlx5/0000\:08\:00.0/lag/state The kernel feature is available in the upcoming Kinetic 5.19 kernel and we should probably backport it to the Jammy 5.15 kernel. 0: https://github.com/torvalds/linux/commit/7f46a0b7327ae261f9981888708dbca22c283900 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1988018/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
