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Date: Sun, 25 Sep 2016 04:53:59 +0300
From: "Michael S. Tsirkin" <mst@redhat.com>
To: Stephen Hemminger <stephen@networkplumber.org>
Cc: Maxime Coquelin <maxime.coquelin@redhat.com>, yuanhan.liu@linux.intel.com, 
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Subject: Re: [dpdk-dev] [PATCH v2] vhost: Add indirect descriptors support
	to the TX path
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On Sat, Sep 24, 2016 at 06:50:07PM -0700, Stephen Hemminger wrote:
> On Sun, 25 Sep 2016 04:02:28 +0300
> "Michael S. Tsirkin" <mst@redhat.com> wrote:
> 
> > I see. It's implied by VERSION_1 in fact.
> > In other words if VERSION_1 is negotiated then bit 27
> > isn't ANY_LAYOUT, it's in fact reserved.
> 
> 
> But what if guest isn't using Version 1? Legacy distro's certainly
> won't have it enabled.

We probably can just expose ANY_LAYOUT to guest if backend
has VERSION_1.