lkml.org 
[lkml]   [2011]   [Jun]   [29]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: virtio scsi host draft specification, v3
On 06/29/2011 12:03 PM, Christoph Hellwig wrote:
> > I agree here, in fact I misread Hannes's comment as "if a driver
> > uses more than one queue it is responsibility of the driver to
> > ensure strict request ordering". If you send requests to different
> > queues, you know that those requests are independent. I don't think
> > anything else is feasible in the virtio framework.
>
> That doesn't really fit very well with the SAM model. If we want
> to use multiple queues for a single LUN it has to be transparent to
> the SCSI command stream. Then again I don't quite see the use for
> that anyway.

Agreed, I see a use for multiple queues (MSI-X), but not for multiple
queues shared by a single LUN.

Paolo


\
 
 \ /
  Last update: 2011-06-29 12:09    [W:0.098 / U:0.356 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site