netdev - Re: [PATCH mlx5-next v7 0/4] Dynamically assign MSI-X vectors count

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Date:   Fri, 12 Mar 2021 20:34:33 +0200
From:   Leon Romanovsky <leon@...nel.org>
To:     Jason Gunthorpe <jgg@...dia.com>
Cc:     Alexander Duyck <alexander.duyck@...il.com>,
        Bjorn Helgaas <helgaas@...nel.org>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Saeed Mahameed <saeedm@...dia.com>,
        Jakub Kicinski <kuba@...nel.org>,
        linux-pci <linux-pci@...r.kernel.org>,
        linux-rdma@...r.kernel.org, Netdev <netdev@...r.kernel.org>,
        Don Dutile <ddutile@...hat.com>,
        Alex Williamson <alex.williamson@...hat.com>,
        "David S . Miller" <davem@...emloft.net>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: Re: [PATCH mlx5-next v7 0/4] Dynamically assign MSI-X vectors count

On Fri, Mar 12, 2021 at 01:03:19PM -0400, Jason Gunthorpe wrote:
> On Fri, Mar 12, 2021 at 08:59:38AM -0800, Alexander Duyck wrote:
>
> > Lastly by splitting out the onlining step you can avoid potentially
> > releasing a broken VF to be reserved if there is some sort of
> > unrecoverable error between steps 2 and 3.
>
> If the PF FW gets in a state that it can't respond to a trivial
> command like this then *every* VF is broken. It not a useful scenario
> to focus on.

Right, many VF initial configurations are done through PF. It MUST work.

Thanks

>
> Jason