[PATCH 24/40] Staging: hv: storvsc: On I/O get the correct IDE device

Christoph Hellwig hch at infradead.org
Fri Jul 1 13:27:20 UTC 2011


On Fri, Jul 01, 2011 at 01:01:43PM +0000, KY Srinivasan wrote:
> Nothing I could see from whatever testing I did. However, the guest will have
> Scsi hosts that the user did not configure. This is certainly the case in both 
> approaches - just the numbers are different!

If the IDE drivers were real IDE ones you'd also have one Scsi_Host for
each of the as that's how libata handles in.  In a way you're much
closer to real ATA than with the previous block driver.  If your host
side support the ATA passthrough SCSI cdbs you'll even be able to
pass taskfiles to them and use tools like hdparm in the guest.



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