netdev - Re: [RFC] virtio-net: help live migrate SR-IOV devices

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Date:   Thu, 30 Nov 2017 16:14:37 +0200
From:   "Michael S. Tsirkin" <mst@...hat.com>
To:     Jason Wang <jasowang@...hat.com>
Cc:     Jesse Brandeburg <jesse.brandeburg@...el.com>,
        virtualization@...ts.linux-foundation.org,
        Jakub Kicinski <jakub.kicinski@...ronome.com>,
        Sridhar Samudrala <sridhar.samudrala@...el.com>,
        Achiad <achiad@...lanox.com>,
        Peter Waskiewicz Jr <peter.waskiewicz.jr@...el.com>,
        "Singhai, Anjali" <anjali.singhai@...el.com>,
        Andy Gospodarek <gospo@...adcom.com>,
        Or Gerlitz <gerlitz.or@...il.com>,
        Hannes Frederic Sowa <hannes@...hat.com>,
        netdev <netdev@...r.kernel.org>
Subject: Re: [RFC] virtio-net: help live migrate SR-IOV devices

On Thu, Nov 30, 2017 at 11:29:56AM +0800, Jason Wang wrote:
> If my understanding is correct there's no need to for any extension of
> virtio spec.

There appears to be a concern that some existing configurations
might use same MAC for an unrelated reason. Not sure what
that could be, but for sure, we could add a feature flag.
That needs to be approved by the virtio TC, but it's
just a single line in the spec no big deal, we can help here.

> If this is true, maybe you can start to prepare the patch?

Yes, please do. We can add a safeguard of a feature bit on top.

-- 
MST