Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750857AbWHRAGq (ORCPT ); Thu, 17 Aug 2006 20:06:46 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750977AbWHRAGq (ORCPT ); Thu, 17 Aug 2006 20:06:46 -0400 Received: from barracuda.s2io.com ([72.1.205.138]:38855 "EHLO barracuda.mail.s2io.com") by vger.kernel.org with ESMTP id S1750843AbWHRAGp (ORCPT ); Thu, 17 Aug 2006 20:06:45 -0400 X-ASG-Debug-ID: 1155859604-9100-5-2 X-Barracuda-URL: http://72.1.205.138:8000/cgi-bin/mark.cgi X-ASG-Whitelist: Client Reply-To: From: "Ravinandan Arakali" To: "'Chris Leech'" , , X-ASG-Orig-Subj: I/OAT configuration ? Subject: I/OAT configuration ? Date: Thu, 17 Aug 2006 17:05:27 -0700 Message-ID: <003701c6c25a$034b0090$4010100a@pc.s2io.com> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook CWS, Build 9.0.6604 (9.0.2911.0) X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2962 In-Reply-To: <20060816005343.8634.21805.stgit@gitlost.site> Importance: Normal X-OriginalArrivalTime: 18 Aug 2006 00:05:26.0825 (UTC) FILETIME=[024F8990:01C6C25A] X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using global scores of TAG_LEVEL=3.5 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=7.0 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1037 Lines: 29 Hi, I am trying to use I/OAT on one of the newer woodcrest boxes. But not sure if things are configured properly since there seems to be no change in performance with I/OAT enabled or disabled. Following are the steps followed. 1. MSI (CONFIG_PCI_MSI) is enabled in kernel(2.6.16.21). 2. In kernel DMA configuration, following are enabled. Support for DMA Engines Network: TCP receive copy offload Test DMA Client Intel I/OAT DMA support 3. I manually load the ioatdma driver (modprobe ioatdma) As per some documentation I read, when step #3 is performed successfully, directories dma0chanX is supposed to be created under /sys/class/dma but in my case, this directory stays empty. I don't see any messages in /var/log/messages. Any idea what is missing ? Thanks, Ravi - 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/