APPLIED: [SRU][F, J:linux-bluefield][PATCH v3 0/1] net: openvswitch: fix race on port output

[Bartlomiej Zolnierkiewicz]

Applied to focal:linux-bluefield/master-next and
jammy:linux-bluefield/master-next. Thanks.

--
Best regards,
Bartlomiej

On Wed, May 24, 2023 at 7:15 PM William Tu <witu at nvidia.com> wrote:
>
> BugLink: https://bugs.launchpad.net/bugs/2020606
>
> fix race on port output
>
> * Explain the bug(s)
>
> there is a race condition on port output
>
> * brief explanation of fixes
>
> We found that upstream linux has the same issue and fix
> commit 066b86787fa3d97b7aefb5ac0a99a22dad2d15f8
>     net: openvswitch: fix race on port output
>
> * How to test
> After configuring QoS on BF-3:
> Disable all priorities
> Set priorities [0, 0, 0, 0, 0, 0, 0, 0]
> Remove all policies
> Remove all traffic classes
> Add policy (policy_name=ND_traffic, traffic_type=RDMA, priority=5, port=20000, dscp=None)
> Add policy (policy_name=TCP_traffic, traffic_type=TCP, priority=4, port=26000, dscp=None)
> Add traffic class two prio TC with prio_list=[5, 4], min_bw=76, algorithm=ETS
> Enable QOS on adapter SLOT 5 Port 1
> Restart driver (detach VFs -> restart with devcon -> attach VFs)
>
> BF-3 sometimes stops responding. need to run it multiple times!
>
> v3:
> use WARN_ON_ONCE instead of DEBUG_NET_WARN_ON_ONCE
>
> Felix Huettner (1):
>   net: openvswitch: fix race on port output
>
>  net/core/dev.c            | 1 +
>  net/openvswitch/actions.c | 2 +-
>  2 files changed, 2 insertions(+), 1 deletion(-)