Date: Wed, 16 Jun 2010 13:14:55 -0700 From: Matthew Jacob <mj@feral.com> To: freebsd-scsi@freebsd.org Subject: Re: Overlapped Commands error Message-ID: <4C1930BF.3090408@feral.com> In-Reply-To: <51DD9715-89B2-4058-A4FE-7097603013CC@averesystems.com>
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> Can anyone point me to where in the stack the command identifier is assigned? I see where MPT assigns tags in target mode, but it's the initiator in this case. Any advice?
>
>
The mpt f/w assigns tags. Don't really know what happened here.
> Also, is CAM doing the right thing by retrying? scsi_error_action() in cam/scsi/scsi_all.c always sets the retry bit on aborted commands, even though the spec quoted above makes it sound like this should be a fatal error ("This is considered a catastrophic failure on the part of the SCSI initiator device"). Should scsi_error_action() be looking at the Additional Sense Code?
>
Not really, IMO. It's up to each periph driver to decide whether
commands are statefull or can be retried with impunity.
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