From owner-freebsd-hardware Tue Aug 25 17:42:31 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id RAA10511 for freebsd-hardware-outgoing; Tue, 25 Aug 1998 17:42:31 -0700 (PDT) (envelope-from owner-freebsd-hardware@FreeBSD.ORG) Received: from gargoyle.bazzle.com (gargoyle.bazzle.com [206.103.246.189]) by hub.freebsd.org (8.8.8/8.8.8) with SMTP id RAA10492 for ; Tue, 25 Aug 1998 17:42:23 -0700 (PDT) (envelope-from ejc@bazzle.com) Received: (qmail 26417 invoked from network); 26 Aug 1998 00:41:31 -0000 Received: from gargoyle.bazzle.com (206.103.246.189) by gargoyle.bazzle.com with SMTP; 26 Aug 1998 00:41:31 -0000 Date: Tue, 25 Aug 1998 20:41:31 -0400 (EDT) From: "Eric J. Chet" To: john hood cc: Joe Gleason , freebsd-hardware@FreeBSD.ORG Subject: Re: UDMA Support In-Reply-To: <19980825021026.12093@owl.org> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-hardware@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org On Tue, 25 Aug 1998, john hood wrote: > On Sat, Aug 22, 1998 at 07:29:03PM +0000, Mike Smith wrote: > > > Does FreeBSD have Ultra DMA support or will it have it? > > > > FreeBSD 3.0 supports IDE DMA. SCSI disks will give better performance > > in multiple-disk or high load scenarios. > > -current supports DMA, but not Ultra DMA, which is faster and has > CRC error checking. (I haven't got an Ultra DMA motherboard and > drive to code/debug on.) This is not much of a problem yet, as > IDE drives cannot yet use all the bandwidth of standard DMA, but > it looks like it will be soon, the way IDE drives are going. :) Hello -current has supported UDMA for about a year or so, I use the Promise controller myself. Later, ejc To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hardware" in the body of the message