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.
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