From owner-freebsd-stable Wed Jan 2 18:40:10 2002 Delivered-To: freebsd-stable@freebsd.org Received: from pc1-cove4-0-cust214.bir.cable.ntl.com (pc1-cove4-0-cust214.bir.cable.ntl.com [213.105.93.214]) by hub.freebsd.org (Postfix) with ESMTP id D337037B405 for ; Wed, 2 Jan 2002 18:40:06 -0800 (PST) Received: (from root@localhost) by pc1-cove4-0-cust214.bir.cable.ntl.com (8.11.6/8.11.6) id g032e4601295; Thu, 3 Jan 2002 02:40:04 GMT (envelope-from ianjhart@ntlworld.com) Received: from ntlworld.com (alpha.private.net [192.168.0.2]) (authenticated) by pc1-cove4-0-cust214.bir.cable.ntl.com (8.11.6/8.11.6av) with ESMTP id g032dnp01281 (using TLSv1/SSLv3 with cipher RC4-MD5 (128 bits) verified NO); Thu, 3 Jan 2002 02:39:52 GMT (envelope-from ianjhart@ntlworld.com) Message-ID: <3C33C475.B9A1F18@ntlworld.com> Date: Thu, 03 Jan 2002 02:39:49 +0000 From: ian j hart X-Mailer: Mozilla 4.79 [en] (X11; U; Linux 2.4.2 i386) X-Accept-Language: en MIME-Version: 1.0 To: Doug White Cc: Thilo Mezger , stable@freebsd.org Subject: Re: RELENG_4_4: PIIX busmastering DMA not supported References: Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Filter-Version: 1.7 (pc1-cove4-0-cust214.bir.cable.ntl.com) X-Virus-Scanned: by AMaViS perl-11 Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG Doug White wrote: > > On Wed, 2 Jan 2002, Thilo Mezger wrote: > > > I was wondering if somebody could explain to me why busmastering DMA > > is not supported in my setup (RELENG_4_4): > > > > # dmesg | grep ata > > atapci0: port 0xfcf0-0xfcff at device 1.1 on pci0 > > atapci0: Busmastering DMA not supported > > According to the code, your controller does not claim to support DMA. The > original PIIX probably didn't support it, thinking about it... > > Check your BIOS settings and verify that you didn't disable DMA at some > point in the past. > > Doug White | FreeBSD: The Power to Serve > dwhite@resnet.uoregon.edu | www.FreeBSD.org > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-stable" in the body of the message This should be the 430 FX (triton) chipset which claims to support WDMA2. IIRC these could be a bit flakey, unlike the HX (triton II), which actually works ;) -- ian j hart To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message