Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1761063AbXKPRKz (ORCPT ); Fri, 16 Nov 2007 12:10:55 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752203AbXKPRKr (ORCPT ); Fri, 16 Nov 2007 12:10:47 -0500 Received: from empbedex1.empirix.com ([12.38.203.54]:19368 "EHLO empbedex1.empirix.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753555AbXKPRKq convert rfc822-to-8bit (ORCPT ); Fri, 16 Nov 2007 12:10:46 -0500 X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 8BIT Subject: RE: 2.6.23.1 - sata_mv (7042) hang with large file operations Date: Fri, 16 Nov 2007 12:07:24 -0500 Message-ID: In-Reply-To: <473CC4B8.4090607@rtr.ca> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: 2.6.23.1 - sata_mv (7042) hang with large file operations Thread-Index: Acgn1Oi65dK9UaCqQO6yalNntaAc6gAnRQfQ References: <45ED682A.9040408@garzik.org> <4728A816.8020608@garzik.org> <473B36D7.8000205@rtr.ca> <473B44CB.6010209@rtr.ca> <473B76E0.7010500@rtr.ca> <473C7625.2040300@rtr.ca> <473CC4B8.4090607@rtr.ca> From: "Morrison, Tom" To: "Mark Lord" Cc: "Jeff Garzik" , , X-OriginalArrivalTime: 16 Nov 2007 17:07:29.0094 (UTC) FILETIME=[2B2F7660:01C82873] Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2402 Lines: 56 Mark, I've ported the old sataMV driver (version 3.6) to the 2.6.23.1 kernel - and it works - no problems with a full mem=4000M (4Gig). The only problem with this is that it is MUCH slower than the sata_mv driver which - by this test - definitely has some bug/dependency that gets broken when the physical memory overlaps its memory I/O locations (and should be iomapped & dma mapped to a separate space up in 0xC_xxxx_xxxx)... Time to dig in and debug this driver! UGH! Tom -----Original Message----- From: Mark Lord [mailto:liml@rtr.ca] Sent: Thursday, November 15, 2007 5:14 PM To: Morrison, Tom Cc: Jeff Garzik; linux-ide@vger.kernel.org; linux-kernel@vger.kernel.org Subject: Re: 2.6.23.1 - sata_mv (7042) hang with large file operations Morrison, Tom wrote: > The plot thickens - it looks like it might be some type > of problem interacting with the setup of my 4Gig DDR memory > and how I setup some translation windows in my MPC8548E > > I realized this morning that I have an inbound/ output PEX window > Translation Setup for mapping all from/to PEX bus to outside > the physical 4GIG memory space (i.e.: up at 0xC_xxxx_xxxx). Thus, > all output operations that translation from 0xC_xxxx_xxxx to > the pci 32 bit address of xxxx_xxxx) - and vice versa for for > the inbound. Note: we also have a straight 1:1 translation mapping > as well for the lower 4Gig - so that's why this worked without > the below mentioned change... > > So, I changed the Request & Response Hi Addresses (which were > Being shifted by 32 bits down anyways) and 'OR' that with my > 0xC (so the effective 64bit DMA address is 0xC_xxxx_xxxx (where > Xxxx_xxxx is the effective address). This was what we did to > solve the problem with the Marvel Linux driver that we got from > the Marvel site.... > > This all works just fine with ONLY 2 gig of memory in the system > (and still have these inbound/output pex translation windows), > but fails when I put back the 4 Gig (and the 8Gig) DDR memory. > > Unfortunately, this still hasn't solved the problem though - > so there is something else which I am not seeing? .. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/