From owner-freebsd-hackers Tue Sep 4 18:48: 4 2001 Delivered-To: freebsd-hackers@freebsd.org Received: from blueyonder.co.uk (pcow035o.blueyonder.co.uk [195.188.53.121]) by hub.freebsd.org (Postfix) with ESMTP id 23E9137B406 for ; Tue, 4 Sep 2001 18:48:01 -0700 (PDT) Received: from mail.yahoo.com ([62.30.72.42]) by blueyonder.co.uk with Microsoft SMTPSVC(5.5.1877.687.68); Wed, 5 Sep 2001 00:38:30 +0100 Received: (from steve@localhost) by mail.yahoo.com (8.11.3/8.11.3) id f84Nc2B00679; Wed, 5 Sep 2001 00:38:02 +0100 (BST) (envelope-from steve) Date: Wed, 5 Sep 2001 00:38:02 +0100 From: Steve Roome To: Niek Bergboer Cc: freebsd-hackers@freebsd.org Subject: Re: Tagged Command Queuing support for IC-35L0?0 ? Message-ID: <20010905003802.A571@dylan.home> Mail-Followup-To: Steve Roome , Niek Bergboer , freebsd-hackers@freebsd.org References: <20010904192030.A2347@wit379119.student.utwente.nl> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit User-Agent: Mutt/1.2.5i In-Reply-To: <20010904192030.A2347@wit379119.student.utwente.nl>; from niek@bergboer.net on Tue, Sep 04, 2001 at 07:20:30PM +0200 Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On Tue, Sep 04, 2001 at 07:20:30PM +0200, Niek Bergboer wrote: > Can these newer drives, based on the IC-35L0?0-chipset, also be used > with TCQ enabled in FBSD? (? is 2, 4 or 6 depending on whether the > drive has 20, 40 or 60 GB capacity). I've got one of these : ad0: 39266MB [79780/16/63] at ata0-master UDMA66 If I turn tagged queueing on, I get an awful lot of write failures and ata timeouts and whatnot. Basically it just doesn't work. **For me** I'm not blaming Søren Schmidt here! it could be due to broken hardware, code or just my sheer incompetence, but in the end I gave up trying, it didn't work with my last drive either, and that was a 30GP type drive (don't remember the model number though). As far as I remember there are apparently problems with some of these drives in terms of whether they even work when they leave the factory, but I've only ever heard that here (make what you want of that). Good luck, YMMV I think I might have made a local patch to include my drive.. something like this... /usr/src/sys/dev/ata/ata-disk.c around line 861 const char *drives[] = {"IBM-DPTA", "IBM-DTLA", "IC35L040AVER07", NULL}; As I said, it didn't work though =( Steve P.S. let me know if you suceed in getting it to work, maybe I need a different motherboard or just to change some settings or something? To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message