From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261244AbVHAUmD (ORCPT ); Mon, 1 Aug 2005 16:42:03 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261260AbVHAUjh (ORCPT ); Mon, 1 Aug 2005 16:39:37 -0400 Received: from mail.dvmed.net ([216.237.124.58]:41442 "EHLO mail.dvmed.net") by vger.kernel.org with ESMTP id S261244AbVHAUg4 (ORCPT ); Mon, 1 Aug 2005 16:36:56 -0400 Message-ID: <42EE87DF.1080508@pobox.com> Date: Mon, 01 Aug 2005 16:36:47 -0400 From: Jeff Garzik User-Agent: Mozilla Thunderbird 1.0.6-1.1.fc4 (X11/20050720) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Jens Axboe CC: Daniel Drake , Otto Meier , linux-kernel@vger.kernel.org, linux-ide@vger.kernel.org Subject: Re: Driver for sata adapter promise sata300 tx4 References: <42EDE918.9040807@gmx.net> <42EE3501.7010107@gentoo.org> <42EE3FB8.10008@gmx.net> <42EE4ADF.4080502@gentoo.org> <20050801201756.GQ22569@suse.de> <20050801203228.GS22569@suse.de> In-Reply-To: <20050801203228.GS22569@suse.de> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Score: 0.0 (/) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Jens Axboe wrote: > Oh, and forget TCQ. It's a completely worthless technology inherited > from PATA, Agreed. There are a few controllers where we may -eventually- add TCQ support, controllers that do 100% of TCQ in hardware. But that's so far down the priority list, it's below just about everything else. There may just be little motivation to -ever- support TCQ, even when libata is the 'main' IDE driver, sometime in the future. I give an outline of queueing stuff at http://linux.yyz.us/sata/software-status.html#tcq Regards, Jeff