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Date: Tue, 20 Nov 2012 12:37:08 +0000
From: "Daniel P. Berrange" <berrange@redhat.com>
Message-ID: <20121120123708.GI3461@redhat.com>
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Subject: Re: [Qemu-devel] [PATCH v2 8/8] virtio-blk: add x-data-plane=on|off
 performance feature
Reply-To: "Daniel P. Berrange" <berrange@redhat.com>
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To: Stefan Hajnoczi <stefanha@redhat.com>
Cc: Kevin Wolf <kwolf@redhat.com>, Anthony Liguori <aliguori@us.ibm.com>, "Michael S. Tsirkin" <mst@redhat.com>, qemu-devel@nongnu.org, khoa@us.ibm.com, Paolo Bonzini <pbonzini@redhat.com>, asias@redhat.com

On Tue, Nov 20, 2012 at 01:31:52PM +0100, Stefan Hajnoczi wrote:
> The virtio-blk-data-plane feature is easy to integrate into
> hw/virtio-blk.c.  The data plane can be started and stopped similar to
> vhost-net.
> 
> Users can take advantage of the virtio-blk-data-plane feature using the
> new -device virtio-blk-pci,x-data-plane=on property.
> 
> The x-data-plane name was chosen because at this stage the feature is
> experimental and likely to see changes in the future.

Can you give some indication of how it is likely to change, since
this has a bearing on any libvirt use of this feature ?

Daniel
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