netdev - Re: [RFC PATCH v3 0/3] Enable virtio_net to act as a backup for a passthru device

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Date:   Fri, 23 Feb 2018 15:59:04 -0800
From:   Stephen Hemminger <stephen@...workplumber.org>
To:     Alexander Duyck <alexander.duyck@...il.com>
Cc:     Jiri Pirko <jiri@...nulli.us>, Jakub Kicinski <kubakici@...pl>,
        "Samudrala, Sridhar" <sridhar.samudrala@...el.com>,
        "Michael S. Tsirkin" <mst@...hat.com>,
        David Miller <davem@...emloft.net>,
        Netdev <netdev@...r.kernel.org>,
        virtualization@...ts.linux-foundation.org,
        virtio-dev@...ts.oasis-open.org,
        "Brandeburg, Jesse" <jesse.brandeburg@...el.com>,
        "Duyck, Alexander H" <alexander.h.duyck@...el.com>,
        Jason Wang <jasowang@...hat.com>,
        Siwei Liu <loseweigh@...il.com>
Subject: Re: [RFC PATCH v3 0/3] Enable virtio_net to act as a backup for a
 passthru device

On Thu, 22 Feb 2018 13:30:12 -0800
Alexander Duyck <alexander.duyck@...il.com> wrote:

> > Again, I undertand your motivation. Yet I don't like your solution.
> > But if the decision is made to do this in-driver bonding. I would like
> > to see it baing done some generic way:
> > 1) share the same "in-driver bonding core" code with netvsc
> >    put to net/core.
> > 2) the "in-driver bonding core" will strictly limit the functionality,
> >    like active-backup mode only, one vf, one backup, vf netdev type
> >    check (so noone could enslave a tap or anything else)
> > If user would need something more, he should employ team/bond.  

Sharing would be good, but netvsc world would really like to only have
one visible network device.