Re: [patch 03/13] mptbase: reset ioc initiator during PCI resume

Darrick J. Wong
2008-02-08T01:23:37Z

On Thu, Feb 07, 2008 at 06:41:25PM -0600, James Bottomley wrote:
> On Mon, 2008-02-04 at 23:53 -0800, akpm@linux-foundation.org wrote:
> > From: "Darrick J. Wong" <djwong@us.ibm.com>
> >
> > It appears that the LSI SAS 1064E chip needs to be reset after a
> > suspend/resume cycle before the driver attempts further communications with
> > the chip. Without this patch, resuming the chip results in this error
> > message being printed repeatedly and no more disk I/O.
> >
> > mptbase: ioc0: ERROR - Invalid IOC facts reply, msgLength=0 offsetof=6!
> >
> > So far it seems to fix suspend/resume on all the MPT Fusion cards I have
> > (SAS and U320 SCSI) but since I don't know the internals of that chip I
> > can't say for sure if this is a proper fix.
> >
> > Signed-off-by: Darrick J. Wong <djwong@us.ibm.com>
> > Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
>
> Ping on this, please Eric.

As far as I can tell, Eric isn't really involved with this patch
anymore, and handed it over to Sathya.Prakash@lsi.com. I received email
from him (her? Apologies, I'm not sufficiently familiar with Indian
names) this morning saying that a modified version of it would go out to
linux-scsi in a day or two.

--D