Re: [PATCH] virtio-blk: make the queue depth the max supportable by the hypervisor

From: Stefan Hajnoczi
Date: Tue Apr 01 2014 - 06:49:48 EST


On Tue, Apr 1, 2014 at 4:27 AM, Theodore Ts'o <tytso@xxxxxxx> wrote:
> On Mon, Mar 31, 2014 at 02:22:50PM +1030, Rusty Russell wrote:
>>
>> It's head of my virtio-next tree.
>
> Hey Rusty,
>
> While we have your attention --- what's your opinion about adding TRIM
> support to virtio-blk. I understand that you're starting an OASIS
> standardization process for virtio --- what does that mean vis-a-vis a
> patch to plumb discard support through virtio-blk?

virtio-scsi already supports discard. But maybe you cannot switch
away from virtio-blk?

If you need to add discard to virtio-blk then it could be added to the
standard. The standards text is kept in a svn repository here:
https://tools.oasis-open.org/version-control/browse/wsvn/virtio/

Stefan
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