From owner-freebsd-current Thu Jun 24 6:31:54 1999 Delivered-To: freebsd-current@freebsd.org Received: from flood.ping.uio.no (flood.ping.uio.no [129.240.78.31]) by hub.freebsd.org (Postfix) with ESMTP id 964CD14F00 for ; Thu, 24 Jun 1999 06:31:32 -0700 (PDT) (envelope-from des@flood.ping.uio.no) Received: (from des@localhost) by flood.ping.uio.no (8.9.3/8.9.1) id PAA51510; Thu, 24 Jun 1999 15:31:26 +0200 (CEST) (envelope-from des) To: "Brian F. Feldman" Cc: Bruce Evans , Doug@gorean.org, freebsd-current@FreeBSD.ORG Subject: Re: New ATA stuff, questions and comment References: From: Dag-Erling Smorgrav Date: 24 Jun 1999 15:31:26 +0200 In-Reply-To: "Brian F. Feldman"'s message of "Wed, 23 Jun 1999 20:29:56 -0400 (EDT)" Message-ID: Lines: 16 X-Mailer: Gnus v5.5/Emacs 19.34 Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG "Brian F. Feldman" writes: > I didn't mean that mode 2 was special, but Ultra DMA mode 2 in its entirety being > very nice :) The old driver never did any form of DMA for me, much less UDMA, so > I'm very glad to have the ATA drivers. controller wdc0 at isa? port IO_WD1 irq 14 flags 0xa0ffa0ff Will enable DMA mode with the old driver. It doesn't support UDMA on all chipsets (e.g. ALI), and in some cases may give very poor performance when using UDMA disks, but normal DMA mode should work. If you have UDMA disks but can't get UDMA to work, just disable UDMA in the BIOS setup utility and it will use normal DMA instead. DES -- Dag-Erling Smorgrav - des@flood.ping.uio.no To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message