Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S267700AbTGHV61 (ORCPT ); Tue, 8 Jul 2003 17:58:27 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S267703AbTGHV61 (ORCPT ); Tue, 8 Jul 2003 17:58:27 -0400 Received: from pizda.ninka.net ([216.101.162.242]:55197 "EHLO pizda.ninka.net") by vger.kernel.org with ESMTP id S267700AbTGHV61 (ORCPT ); Tue, 8 Jul 2003 17:58:27 -0400 Date: Tue, 08 Jul 2003 15:04:33 -0700 (PDT) Message-Id: <20030708.150433.104048841.davem@redhat.com> To: ak@suse.de Cc: alan@lxorguk.ukuu.org.uk, grundler@parisc-linux.org, James.Bottomley@SteelEye.com, axboe@suse.de, suparna@in.ibm.com, linux-kernel@vger.kernel.org, alex_williamson@hp.com, bjorn_helgaas@hp.com Subject: Re: [RFC] block layer support for DMA IOMMU bypass mode II From: "David S. Miller" In-Reply-To: <20030708213427.39de0195.ak@suse.de> References: <20030703212415.GA30277@wotan.suse.de> <20030707.191438.71104854.davem@redhat.com> <20030708213427.39de0195.ak@suse.de> X-FalunGong: Information control. X-Mailer: Mew version 2.1 on Emacs 21.1 / Mule 5.0 (SAKAKI) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 540 Lines: 13 From: Andi Kleen Date: Tue, 8 Jul 2003 21:34:27 +0200 Do you know a common PCI block device that would benefit from this (performs significantly better with short sg lists)? It would be interesting to test. %10 to %15 on sym53c8xx devices found on sparc64 boxes. - 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/