From owner-freebsd-amd64@FreeBSD.ORG Sun Nov 30 07:29:17 2003 Return-Path: Delivered-To: freebsd-amd64@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id C4F2416A4CE for ; Sun, 30 Nov 2003 07:29:17 -0800 (PST) Received: from out004.verizon.net (out004pub.verizon.net [206.46.170.142]) by mx1.FreeBSD.org (Postfix) with ESMTP id 852CF43FCB for ; Sun, 30 Nov 2003 07:29:16 -0800 (PST) (envelope-from dfeustel@mindspring.com) Received: from daffy ([4.62.79.194]) by out004.verizon.net (InterMail vM.5.01.06.06 201-253-122-130-106-20030910) with ESMTP id <20031130152915.QCYH12902.out004.verizon.net@daffy>; Sun, 30 Nov 2003 09:29:15 -0600 Content-Type: text/plain; charset="iso-8859-1" From: Dave Feustel To: James Van Artsdalen , freebsd-amd64@freebsd.org Date: Sun, 30 Nov 2003 10:31:40 -0500 User-Agent: KMail/1.4.3 References: <200311260733.hAQ7XheT012676@bigtex.jrv.org> In-Reply-To: <200311260733.hAQ7XheT012676@bigtex.jrv.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Message-Id: <200311301031.40578.dfeustel@mindspring.com> X-Authentication-Info: Submitted using SMTP AUTH at out004.verizon.net from [4.62.79.194] at Sun, 30 Nov 2003 09:29:15 -0600 Subject: Re: disk controllers w/ 64-bit addressing? X-BeenThere: freebsd-amd64@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Porting FreeBSD to the AMD64 platform List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 30 Nov 2003 15:29:17 -0000 64-bit memory addressing for disk transfers can be done iin AMD native mode via programmed i/o. The question is whether 64-bit memory addressing via dma-controlled memory transfers is possible and/or supported via the disk driver. On Wednesday 26 November 2003 02:33 am, James Van Artsdalen wrote: > This is not exactly an authoritative or complete answer from > HighPoint, but it does suggest there's hope for an (relative to SCSI) > economic means of a disk system that doesn't need bounce buffers. > > Does anyone in FreeBSD already have a contact at HighPoint or should > I nag them to cough up a datasheet for whatever IC is used? > > The pictures show eight SATA ports and one control IC with no > ATA-to-SATA adapter chips in sight, so this probably isn't one of the > chips listed on their site but rather something new. > > Date: Wed, 26 Nov 2003 14:48:43 +0800 > To: James Van Artsdalen > From: "HighPoint Technologies Inc." > Subject: Re: RocketRaid 1820 > > Dear Sir / Madam, > > Thanks for your contacting us! > The current driver for RR1820 only can work on the 32-bit OS. > > If you use the 32bit OS on Opteron, RR1820 can work properly, for Memory > Addressing, it is determined by the operating system directly. > > The 64bit-driver(Support 64bit OS) will support 64bit addressing, but it > hasn't released yet. > > Regards, > HighPoint Technologies Inc. > > At 04:13 2003-11-26, you wrote: > >Is the datasheet on the controller for the 1820 available? > > > >Can the 1820 address memory above 4 GB (i.e., Opteron)? > > > >I can see that the 1820 does 64-bit data: the question is if it does > >64-bit addresses too. > > _______________________________________________ > freebsd-amd64@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-amd64 > To unsubscribe, send any mail to "freebsd-amd64-unsubscribe@freebsd.org"