From owner-freebsd-questions Sun Jul 7 7:40:13 2002 Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.FreeBSD.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 9DF5337B400 for ; Sun, 7 Jul 2002 07:40:11 -0700 (PDT) Received: from alpha.yumyumyum.org (dsl092-171-091.wdc1.dsl.speakeasy.net [66.92.171.91]) by mx1.FreeBSD.org (Postfix) with ESMTP id A569943E09 for ; Sun, 7 Jul 2002 07:40:10 -0700 (PDT) (envelope-from culverk@yumyumyum.org) Received: from alpha.yumyumyum.org (localhost [127.0.0.1]) by alpha.yumyumyum.org (8.12.3/8.12.3) with ESMTP id g67EdtCU037680; Sun, 7 Jul 2002 10:39:55 -0400 (EDT) (envelope-from culverk@yumyumyum.org) Received: from localhost (culverk@localhost) by alpha.yumyumyum.org (8.12.5/8.12.3/Submit) with ESMTP id g67Edsm1037677; Sun, 7 Jul 2002 10:39:55 -0400 (EDT) (envelope-from culverk@yumyumyum.org) X-Authentication-Warning: alpha.yumyumyum.org: culverk owned process doing -bs Date: Sun, 7 Jul 2002 10:39:54 -0400 (EDT) From: Kenneth Culver To: Joshua Lee Cc: freebsd-questions@FreeBSD.ORG Subject: Re: Activating DMA for IDE drives In-Reply-To: <20020707101703.206fec98.yid@softhome.net> Message-ID: <20020707103844.E37645-100000@alpha.yumyumyum.org> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On Sun, 7 Jul 2002, Joshua Lee wrote: > How do I activate DMA for IDE hard drives and CD-ROMS? I remember Linux > had something called hdparm for this, I'm sure BSD can do it too but I'm > not sure how... If your controller and hd support DMA, FreeBSD automatically turns it on... For atapi devices, you should edit /boot/loader.conf and put this line there: hw.ata.atapi_dma=1 then reboot. That will turn on DMA for any atapi device that supports it. > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-questions" in the body of the message > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message