Re: [Qemu-devel] virtio scsi host draft specification, v2

[Avi Kivity]

On 06/01/2011 07:25 PM, Paolo Bonzini wrote:
> On 06/01/2011 03:46 PM, Avi Kivity wrote:
> > > Virtqueues
> > >      0:control transmitq
> > >      1:control receiveq
> > >      2:requestq
> >
> > Shouldn't we plan multiqueue for this from day 1?
>
> How would you do multiqueue?  Just provide N queues, and the device 
> can place requests for any LUN on any queue?

Yes.

> If that's correct, it doesn't sound too hard to do, but also doesn't 
> sound problematic to fit it later.  So I'm quite ambivalent

Since it's easy, why not?  Reducing feature bit proliferation means 
easier testing.

> > flags? room for growth?
>
> Feature bits can be used to negotiate the exact format of the request. 
> I don't expect many changes, since we're closely mimicking the SCSI 
> requests.

Ok.  If we're following a standard we should be safe.

--
error compiling committee.c: too many arguments to function