From owner-freebsd-questions  Fri Jan 11 15:32: 1 2002
Delivered-To: freebsd-questions@freebsd.org
Received: from ptavv.es.net (ptavv.es.net [198.128.4.29])
	by hub.freebsd.org (Postfix) with ESMTP id BB09F37B43E
	for <questions@FreeBSD.ORG>; Fri, 11 Jan 2002 15:31:42 -0800 (PST)
Received: from ptavv.es.net (localhost [127.0.0.1])
	by ptavv.es.net (Postfix) with ESMTP
	id 4BE625D17; Fri, 11 Jan 2002 15:31:32 -0800 (PST)
To: Tim DeBoer <deboert@cletus.cornhusker.net>
Cc: questions@FreeBSD.ORG
Subject: Re: Enabling DMA Access 
In-reply-to: Your message of "Thu, 10 Jan 2002 14:28:23 GMT."
             <Pine.BSF.4.21.0201101422120.70175-100000@cletus.cornhusker.net> 
Date: Fri, 11 Jan 2002 15:31:32 -0800
From: "Kevin Oberman" <oberman@ptavv.es.net>
Message-Id: <20020111233132.4BE625D17@ptavv.es.net>
Sender: owner-freebsd-questions@FreeBSD.ORG
Precedence: bulk
List-ID: <freebsd-questions.FreeBSD.ORG>
List-Archive: <http://docs.freebsd.org/mail/> (Web Archive)
List-Help: <mailto:majordomo@FreeBSD.ORG?subject=help> (List Instructions)
List-Subscribe: <mailto:majordomo@FreeBSD.ORG?subject=subscribe%20freebsd-questions>
List-Unsubscribe: <mailto:majordomo@FreeBSD.ORG?subject=unsubscribe%20freebsd-questions>
X-Loop: FreeBSD.ORG

> Date: Thu, 10 Jan 2002 14:28:23 +0000 (GMT)
> From: Tim DeBoer <deboert@cletus.cornhusker.net>
> Sender: owner-freebsd-questions@FreeBSD.ORG
> 
> Hi Everyone,
> I've been playing with DVD on my FBSD box, but it looks lik hell.
> The standard recomendation is to enable DMA access on ym drives, so I've
> been digging through various kern files I've found on the web.
> They all seem to call for
> 
> options 	ATA_ENABLE_ATAPI_DMA	# Enable DMA on ATAPI devices
> 
> The problem is, I can't recompile if I add that to my kern. 
> The error message reads unknown option "ATA_ENABLE_ATAPI_DMA"
> 
> Am I missing a step here? Acutally I know I am, I just don't know what it
> is.

This is obsolete. The new ata driver now sets this with a sysctl.

Add:
hw.ata.atapi_dma="1"    # Run the CD-ROM/DVD in DMA mode
to /boot/loader.conf.

R. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab)
E-mail: oberman@es.net			Phone: +1 510 486-8634


To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-questions" in the body of the message