Re: [LSF/MM TOPIC] [ATTEND] scsi_eh updates

[Bart Van Assche <bvanassche@acm.org>]

On 12/20/13 15:54, Hannes Reinecke wrote:
> I'd like to attend LSF 2014.
> 
> During that I'd like to discuss the current status of the SCSI EH
> and the future planned updates.
> 
> As discussed during last year's LSF the SCSI error handler should be
> updated to handle modern SCSI transports better.
> While some patchsets are already merged, there are some issues which
> are still open:
> - Handling of requests during host reset:
>   Do we need to keep hold of outstanding requests during host reset?
>   Or is it save to return them prior to host reset?
> - Check for transport status prior to sending TMFs.
>   Task management functions typically need a working I_T nexus,
>   so it does make sense to first check the transport status
>   prior to attempting any TMFs
> - Further steps for updating SCSI EH
> As these are tricky issues which have possible repercussions on the
> entire subsystem and LLDDs it'd be good to have a broader discussion
> here.

+1 for this topic.

Given my recent contributions to the error detection and recovery code
in the SRP initiator driver I think I can provide valuable inputs for
this discussion.

Bart.