RE: [PATCH] scsi:storvsc enable reading from VPD pages on SPC-2

[KY Srinivasan]

> -----Original Message-----
> From: Long Li
> Sent: Wednesday, December 10, 2014 2:28 PM
> To: Martin K. Petersen
> Cc: KY Srinivasan; Haiyang Zhang; JBottomley@xxxxxxxxxxxxx; linux-
> scsi@xxxxxxxxxxxxxxx; devel@xxxxxxxxxxxxxxxxxxxxxx; linux-
> kernel@xxxxxxxxxxxxxxx
> Subject: RE: [PATCH] scsi:storvsc enable reading from VPD pages on SPC-2
> 
> > >>>>> "Long" == Long Li <longli@xxxxxxxxxxxxx> writes:
> >
> > Long> MSFT targets currently claim SPC-2 compliance while they
> > Long> implement post SPC-2 features. With this patch we can correctly
> > Long> handle
> > Long> WRITE_SAME_16 issues.
> >
> > Handle the issues or handle WRITE SAME(10/16)?
> 
> With this patch, the SCSI layer will be able to correctly send WRITE_SAME_16
> to the Hyper-V host. It will not send WRITE_SAME_10: it has been disabled in
> the driver template. Do you want me to send another patch with these
> details?
> 
> >
> > +	{"Msft", "Virtual Disk", "1.0", BLIST_TRY_VPD_PAGES},
> >
> > Is that version field meaningful or is it safe for us to inquire about
> > VPD pages without problems on older versions?
> 
> This version is used in all current Hyper-V hosts: Windows 2008 R2, 2012 and
> 2012 R2. However it may change in future Windows releases.

The next version of the host will be claiming conformance to SPC-3

K. Y
> 
> >
> > --
> > Martin K. Petersen	Oracle Linux Engineering
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