From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757200AbXKLTss (ORCPT ); Mon, 12 Nov 2007 14:48:48 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752193AbXKLTsk (ORCPT ); Mon, 12 Nov 2007 14:48:40 -0500 Received: from outpipe-village-512-1.bc.nu ([81.2.110.250]:35080 "EHLO the-village.bc.nu" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1751687AbXKLTsk (ORCPT ); Mon, 12 Nov 2007 14:48:40 -0500 Date: Mon, 12 Nov 2007 19:48:06 +0000 From: Alan Cox To: "Ron Yorgason" Cc: linux-kernel@vger.kernel.org Subject: Re: Better support for Delkin cardbus CF adapters -- IDE layer Message-ID: <20071112194806.4cb9c688@the-village.bc.nu> In-Reply-To: <93d1fdd10711121003t2286493bob25a3acd12134720@mail.gmail.com> References: <93d1fdd10711121003t2286493bob25a3acd12134720@mail.gmail.com> X-Mailer: Claws Mail 2.10.0 (GTK+ 2.10.14; i386-redhat-linux-gnu) Organization: Red Hat UK Cyf., Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SL4 1TE, Y Deyrnas Gyfunol. Cofrestrwyd yng Nghymru a Lloegr o'r rhif cofrestru 3798903 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 > the kernel), performance is pretty abysmal. What would it take to get > proper DMA support? Is it an architecture problem, in that this > doesn't use the normal IDE PCI driver? Is it a lack of documentation > on card specs? What can I do to help? Persuade Delkin to provide specifications either publically or under NDA (but allowing a GPL source code driver) with one of the ATA developers. For a fairly typical SFF style controller it shouldn't take long to produce a test driver. Alan