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

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Message-ID: <20171205211603-mutt-send-email-mst@kernel.org>
Date:   Tue, 5 Dec 2017 21:20:07 +0200
From:   "Michael S. Tsirkin" <mst@...hat.com>
To:     achiad shochat <achiad.mellanox@...il.com>
Cc:     Alexander Duyck <alexander.duyck@...il.com>,
        Stephen Hemminger <stephen@...workplumber.org>,
        Jakub Kicinski <jakub.kicinski@...ronome.com>,
        Hannes Frederic Sowa <hannes@...hat.com>,
        Sridhar Samudrala <sridhar.samudrala@...el.com>,
        netdev <netdev@...r.kernel.org>,
        virtualization@...ts.linux-foundation.org,
        Achiad <achiad@...lanox.com>,
        Peter Waskiewicz Jr <peter.waskiewicz.jr@...el.com>,
        "Singhai, Anjali" <anjali.singhai@...el.com>,
        Shannon Nelson <shannon.nelson@...cle.com>,
        Andy Gospodarek <gospo@...adcom.com>,
        Or Gerlitz <gerlitz.or@...il.com>
Subject: Re: [RFC] virtio-net: help live migrate SR-IOV devices

On Tue, Dec 05, 2017 at 11:59:17AM +0200, achiad shochat wrote:
> Then we'll have a single solution for both netvsc and virtio (and any
> other PV device).
> And we could handle the VF DMA dirt issue agnostically.

For the record, I won't block patches adding this kist to virtio
on the basis that they must be generic. It's not a lot
of code, implementation can come first, prettify later.

But we do need to have a discussion about how devices are paired.
I am not sure using just MAC works. E.g. some passthrough
devices don't give host ability to set the MAC.
Are these worth worrying about?

-- 
MST