Re: [Qemu-devel] [PATCH v5 0/4] Introduce vhost-user-scsi and sample application

[Marc-André Lureau]

Hi

----- Original Message -----
> 
> > On Jul 6, 2017, at 9:56 AM, Paolo Bonzini <address@hidden> wrote:
> > 
> > 
> > 
> > On 06/07/2017 18:54, Harris, James R wrote:
> >> Hi Michael,
> >> 
> >> Yes - we (SPDK team at Intel) have this on our TODO list, in addition
> >> to a polled mode virtio-scsi driver (akin to the DPDK virtio-net driver
> >> that
> >> can be used in the guest).
> > 
> > Can you also look at virtio-blk poll-mode drivers and vhost-user-blk
> > (vhost-user-blk would be really easy to write, the sample server being
> > much more work than the QEMU code)?
> > 
> > Paolo
> 
> Hi Paolo,
> 
> vhost-user-blk:
> 
> We have an initial implementation in our SPDK QEMU repo.  Changpeng Liu
> (added)
> will be sending this to the QEMU mailing list shortly.  If you are interested
> in viewing it
> before it hits the mailing list, you can take a look at the patch here:
> 
> https://github.com/spdk/qemu/commit/db2fcb0f5002c3d195e756eab07bd976ccf6e7c8

Great! I also just started looking into this, I'll take a look at your 
implementation. Do you also have a "server"/slave side, or plan to share one?

(fwiw, I have vhost-user-input & gpu in this branch 
https://github.com/elmarco/qemu/commits/vhost-user - I just rebased/fixed it, 
as it was 1y old already - there are a few changes I'd like to make now)

> 
> virtio-blk poll-mode driver:
> 
> Yes - this is part of our plan as well - once we have virtio-scsi in place,
> adding virtio-blk
> will be relatively straightforward.
> 
> Thanks,
> 
> -Jim
> 
>