From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753097AbYEOU0H (ORCPT ); Thu, 15 May 2008 16:26:07 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752444AbYEOUZI (ORCPT ); Thu, 15 May 2008 16:25:08 -0400 Received: from mtagate1.de.ibm.com ([195.212.29.150]:31436 "EHLO mtagate1.de.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752126AbYEOUZG (ORCPT ); Thu, 15 May 2008 16:25:06 -0400 Date: Thu, 15 May 2008 18:17:41 +0300 From: Muli Ben-Yehuda To: Alexis Bruemmer Cc: FUJITA Tomonori , linux-kernel@vger.kernel.org, akpm@linux-foundation.org Subject: Re: [PATCH 0/2] x86: per-device dma_mapping_ops Message-ID: <20080515151741.GF6778@il.ibm.com> References: <1210658692-960-1-git-send-email-fujita.tomonori@lab.ntt.co.jp> <20080514054924.GD6682@il.ibm.com> <20080515101212Z.tomof@acm.org> <1210816813.5596.13.camel@alexis> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1210816813.5596.13.camel@alexis> User-Agent: Mutt/1.5.15+20070412 (2007-04-11) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, May 14, 2008 at 07:00:13PM -0700, Alexis Bruemmer wrote: > I wanted to try and create a test version of this, at least for the > calgary side, but ran into an error with this patch set: > > Fusion MPT SAS Host driver 3.04.06 > ACPI: PCI Interrupt 0000:34:00.0[A] -> GSI 142 (level, low) -> IRQ 142 > mptbase: ioc0: Initiating bringup > ioc0: LSISAS1078 C1: Capabilities={Initiator} > mptbase: ioc0: PCI-MSI enabled > Calgary: DMA error on CalIOC2 PHB 0x33 > Calgary: 0x02000000@CSR 0x00000000@PLSSR 0xb0008000@CSMR 0x00000000@MCK > Calgary: 0x00000000@0x810 0xfee0c000@0x820 0x00000000@0x830 > 0x00000000@0x840 0x03804a00@0x850 0x00000000@0x860 0x00000000@0x870 > Calgary: 0x00000000@0xcb0 Calgary caught an errant DMA. If it was working before, we are probably mis-programming the TCE tables. The first thing to check is whether all dma_map_xxx calls by mptbase end up calling the Calgary dma_ops. Cheers, Muli