Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754553AbXJXBTR (ORCPT ); Tue, 23 Oct 2007 21:19:17 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752830AbXJXBTH (ORCPT ); Tue, 23 Oct 2007 21:19:07 -0400 Received: from mga03.intel.com ([143.182.124.21]:7509 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752820AbXJXBTG convert rfc822-to-8bit (ORCPT ); Tue, 23 Oct 2007 21:19:06 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.21,321,1188802800"; d="scan'208";a="304285111" 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: [PATCH] I/OAT: Add support for version 2 of ioatdma device Date: Tue, 23 Oct 2007 18:18:54 -0700 Message-ID: In-Reply-To: <20071023125613.4e90b764.akpm@linux-foundation.org> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [PATCH] I/OAT: Add support for version 2 of ioatdma device Thread-Index: AcgVrsYi3Q5eV82ZTm+9zn/q9eEaTAALL3uQ References: <20071019072024.5057.3665.stgit@localhost.localdomain> <20071023125613.4e90b764.akpm@linux-foundation.org> From: "Nelson, Shannon" To: "Andrew Morton" Cc: , "Williams, Dan J" X-OriginalArrivalTime: 24 Oct 2007 01:18:56.0233 (UTC) FILETIME=[D8F9CD90:01C815DB] Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1033 Lines: 29 >From: Andrew Morton [mailto:akpm@linux-foundation.org] >On Fri, 19 Oct 2007 00:20:25 -0700 >Shannon Nelson wrote: > >> Add support for version 2 of the ioatdma device. This device handles >> the descriptor chain and DCA services slightly differently: >> - Instead of moving the dma descriptors between a busy and >an idle chain, >> this new version uses a single circular chain so that we >don't have >> rewrite the next_descriptor pointers as we add new >requests, and the >> device doesn't need to re-read the last descriptor. >> - The new device has the DCA tags defined internally >instead of needing >> them defined statically. >> Andrew, Thank you for your time and the review comments. I'll attend to the details and repost. sln - 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/