Re: [PATCH v2 14/20] scsi: Retry pr_ops commands if a UA is returned.

Mike Christie
2022-08-09T16:24:41Z

On 8/9/22 2:16 AM, Christoph Hellwig wrote:
> On Mon, Aug 08, 2022 at 07:04:13PM -0500, Mike Christie wrote:
>> It's common to get a UA when doing PR commands. It could be due to a
>> target restarting, transport level relogin or other PR commands like a
>> release causing it. The upper layers don't get the sense and in some cases
>> have no idea if it's a SCSI device, so this has the sd layer retry.
>
> This seems like another case for the generic in-kernel passthrugh
> command retry discussed in the other thread.

It is.

>
> Can you split out two series with just bug fixes for nvme and scsi
> as I think we should probably get those into 6.0, and then we can
> do the actual feature on top of those?

Ok.

Martin W, I'll submit a patch with a new SCMD flag that will fix
both our problems.