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Re: [Qemu-devel] [PATCH 7/7] virtio-blk: add x-data-plane=on|off perform
From: |
Kevin Wolf |
Subject: |
Re: [Qemu-devel] [PATCH 7/7] virtio-blk: add x-data-plane=on|off performance feature |
Date: |
Mon, 19 Nov 2012 11:38:30 +0100 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:13.0) Gecko/20120605 Thunderbird/13.0 |
Am 16.11.2012 07:22, schrieb Stefan Hajnoczi:
> On Thu, Nov 15, 2012 at 10:08 PM, Anthony Liguori <address@hidden> wrote:
>> Stefan Hajnoczi <address@hidden> writes:
>>
>>> 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.
>>
>> I don't think this should be a property of virtio-blk-pci but rather a
>> separate device.
>
> The hw/virtio-blk.c code still needs to be used since
> hw/dataplane/virtio-blk.c is only a subset of virtio-blk.
>
> So we're talking about adding a new virtio-blk-data-plane-pci device
> type to hw/virtio-pci.c?
A new device sounds wrong to me, it's the very same thing from a guest
perspective. Which makes me wonder if in the final version it shouldn't
be a -blockdev option rather than a -device one...
Kevin
[Qemu-devel] [PATCH 6/7] dataplane: add virtio-blk data plane code, Stefan Hajnoczi, 2012/11/15
Re: [Qemu-devel] [PATCH 0/7] virtio: virtio-blk data plane, Asias He, 2012/11/20
- Re: [Qemu-devel] [PATCH 0/7] virtio: virtio-blk data plane, Stefan Hajnoczi, 2012/11/20
- Re: [Qemu-devel] [PATCH 0/7] virtio: virtio-blk data plane, Stefan Hajnoczi, 2012/11/20
- Re: [Qemu-devel] [PATCH 0/7] virtio: virtio-blk data plane, Asias He, 2012/11/21
- Re: [Qemu-devel] [PATCH 0/7] virtio: virtio-blk data plane, Asias He, 2012/11/21
- Re: [Qemu-devel] [PATCH 0/7] virtio: virtio-blk data plane, Stefan Hajnoczi, 2012/11/21
- Re: [Qemu-devel] [PATCH 0/7] virtio: virtio-blk data plane, Asias He, 2012/11/21