From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeremy Higdon Subject: Re: mpt sets 64bit consistent mask yet requires mapping in same 4 GB chunk?!? Date: Wed, 18 Feb 2004 15:20:41 -0800 Sender: linux-scsi-owner@vger.kernel.org Message-ID: <20040218232041.GA502690@sgi.com> References: <0E3FA95632D6D047BA649F95DAB60E5703EF9372@exa-atlanta.se.lsil.com> <1077130375.3066.17.camel@patsy.fc.hp.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from mtvcafw.sgi.com ([192.48.171.6]:36066 "EHLO zok.sgi.com") by vger.kernel.org with ESMTP id S267081AbUBRXVK (ORCPT ); Wed, 18 Feb 2004 18:21:10 -0500 Content-Disposition: inline In-Reply-To: <1077130375.3066.17.camel@patsy.fc.hp.com> List-Id: linux-scsi@vger.kernel.org To: Alex Williamson Cc: "Moore, Eric Dean" , jbarnes@sgi.com, bjorn.helgaas@hp.com, willy@debian.org, James.Bottomley@steeleye.com, linux-scsi@vger.kernel.org On Wed, Feb 18, 2004 at 11:52:57AM -0700, Alex Williamson wrote: > On Wed, 2004-02-18 at 11:41, Moore, Eric Dean wrote: > > Regarding last weeks thread > > on mpt fusion driver(2.6 kernel), and PrimeIocFifos: > > > [snip... a third allocation dependency] > > > If this fix is urgent, I recommend providing a quick > > fix which is creating 32bit pci_dev mask just for these > > three pci_alloc_consistent calls. > > > > The current failure mode is pretty ugly and appears fairly random. I > would consider getting something that works reliably to be urgent. It > sounds easy and safe to twiddle the consistent device mask in the short > term and combine these allocations in a future rev. Thanks, > > Alex Unfortunately, the SGI platform needs 64 bit addresses for consistent allocations. However, since that's not reliable, I guess we'll just need to wait for a fix that combines the allocations. Eric, do you have any idea how long this will take? thanks jeremy