[Bug 261746] hn(4): Communication stops when enabling SR-IOV secondary mlx5en(4) interface (640FLR-SFP28) on Windows Server 2022

From: <bugzilla-noreply_at_freebsd.org>
Date: Mon, 07 Feb 2022 16:25:15 UTC

Wei Hu <weh@microsoft.com> changed:

           What    |Removed                     |Added
              Flags|maintainer-feedback?(weh@mi |maintainer-feedback?(hps@Fr
                   |crosoft.com)                |eeBSD.org)
                 CC|                            |hps@FreeBSD.org,
                   |                            |hselasky@FreeBSD.org

--- Comment #6 from Wei Hu <weh@microsoft.com> ---
I was able to reproduce on a VM in Azure as well. Following commit broke the
Cx-4 VF driver on Hyper-V:

commit e059c120b4223fd5ec3af9def21c0519f439fe57
Author: Hans Petter Selasky <hselasky@FreeBSD.org>
Date:   Tue Feb 1 16:20:12 2022 +0100

    mlx5en: Create and destroy all flow tables and rules when the network
interface attaches and detaches.

Add HPS for comment and further investigation.

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