Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Mon, 15 Apr 2002 14:26:35 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Mon, 15 Apr 2002 14:26:34 -0400 Received: from ns.virtualhost.dk ([195.184.98.160]:19470 "EHLO virtualhost.dk") by vger.kernel.org with ESMTP id ; Mon, 15 Apr 2002 14:26:34 -0400 Date: Mon, 15 Apr 2002 20:26:39 +0200 From: Jens Axboe To: Petr Vandrovec Cc: linux-kernel@vger.kernel.org Subject: Re: [PATCH] IDE TCQ #4 Message-ID: <20020415182639.GY12608@suse.de> In-Reply-To: <274A9BD5C76@vcnet.vc.cvut.cz> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Apr 15 2002, Petr Vandrovec wrote: > On 15 Apr 02 at 18:44, Jens Axboe wrote: > > > > You can run a IDENTIFY_DEVICE from user space with the task ioctls and > > > look at word 83 -- bit 1 and 14 must be set for TCQ to be supported. If > > > you give me the model identifier from the IBM drive, I can tell you if > > > it has tcq or not... > > > > > > I'll write a small util to detect this tomorrow and send it to you + the > > > list. > > > > Duh, you can of course just look at /proc/ide/ideX/hdY/identify and > > parse that. The info above is still valid for that, of course :-) > > If I parsed file correctly (it is 83 decimal word, yes?), WD's > WDC WD1200JB-00CRA0 supports TCQ too. I'm still deciding which of Ok > TCQ #X and IDE #YY patches should be aplied to 2.5.8 to get optimal > results (and I have to disconnect slaves...). The latest I posted, and slaves are fine. -- Jens Axboe - 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/