From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Darrick J. Wong" Subject: Re: [patch 03/13] mptbase: reset ioc initiator during PCI resume Date: Thu, 7 Feb 2008 17:23:24 -0800 Message-ID: <20080208012324.GA3601@tree.beaverton.ibm.com> References: <200802050752.m157qsni010694@imap1.linux-foundation.org> <1202431285.3171.46.camel@localhost.localdomain> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from e3.ny.us.ibm.com ([32.97.182.143]:43837 "EHLO e3.ny.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758825AbYBHBXh (ORCPT ); Thu, 7 Feb 2008 20:23:37 -0500 Received: from d01relay04.pok.ibm.com (d01relay04.pok.ibm.com [9.56.227.236]) by e3.ny.us.ibm.com (8.13.8/8.13.8) with ESMTP id m181NQRC017338 for ; Thu, 7 Feb 2008 20:23:26 -0500 Received: from d01av04.pok.ibm.com (d01av04.pok.ibm.com [9.56.224.64]) by d01relay04.pok.ibm.com (8.13.8/8.13.8/NCO v8.7) with ESMTP id m181NQuc264866 for ; Thu, 7 Feb 2008 20:23:26 -0500 Received: from d01av04.pok.ibm.com (loopback [127.0.0.1]) by d01av04.pok.ibm.com (8.12.11.20060308/8.13.3) with ESMTP id m181NPU5009708 for ; Thu, 7 Feb 2008 20:23:26 -0500 Content-Disposition: inline In-Reply-To: <1202431285.3171.46.camel@localhost.localdomain> Sender: linux-scsi-owner@vger.kernel.org List-Id: linux-scsi@vger.kernel.org To: James Bottomley Cc: akpm@linux-foundation.org, linux-scsi@vger.kernel.org, "Moore, Eric" 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" > > > > 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 > > Signed-off-by: Andrew Morton > > 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