From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jesse Barnes Subject: Re: SCSI QLA not working on latest *-mm SN2 Date: Tue, 21 Sep 2004 13:52:44 -0400 Sender: linux-scsi-owner@vger.kernel.org Message-ID: <200409211352.44235.jbarnes@engr.sgi.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Return-path: Received: from omx3-ext.sgi.com ([192.48.171.20]:32748 "EHLO omx3.sgi.com") by vger.kernel.org with ESMTP id S267745AbUIURxF (ORCPT ); Tue, 21 Sep 2004 13:53:05 -0400 In-Reply-To: Content-Disposition: inline List-Id: linux-scsi@vger.kernel.org To: Andrew Vasquez Cc: Matthew Wilcox , James Bottomley , Grant Grundler , pj@sgi.com, SCSI Mailing List , mdr@cthulhu.engr.sgi.com, jeremy@cthulhu.engr.sgi.com, djh@cthulhu.engr.sgi.com, Andrew Morton On Tuesday, September 21, 2004 1:33 pm, Andrew Vasquez wrote: > Hmm...adding more confusion to the mix. I apologize -- my reply was > not written correctly, yes, the config-read will flush any pending > writes. But, the same problem persists -- the RISC will still stop > responding to requests (config or MMIO) during the soft-reset -- > potentially resulting in a MAC (as seen by SGI). Thanks for clarifying, I suspected that was the case. > The 'safe' solution (as suggested by the hw people) was to use PIO to > issue the soft-reset, then udelay(). But unfortunately, that doesn't get us 100% there, since even PIO space writes can be posted in some circumstances. Any other suggestions? Jesse