From owner-freebsd-amd64@FreeBSD.ORG Tue Nov 25 23:33:46 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 1B34F16A4CE for ; Tue, 25 Nov 2003 23:33:46 -0800 (PST) Received: from bigtex.jrv.org (rrcs-sw-24-73-246-106.biz.rr.com [24.73.246.106]) by mx1.FreeBSD.org (Postfix) with ESMTP id 1C32A43FDD for ; Tue, 25 Nov 2003 23:33:45 -0800 (PST) (envelope-from james@bigtex.jrv.org) Received: from bigtex.jrv.org (localhost [127.0.0.1]) by bigtex.jrv.org (8.12.1/8.12.1) with ESMTP id hAQ7Xio8012679 (version=TLSv1/SSLv3 cipher=EDH-RSA-DES-CBC3-SHA bits=168 verify=NO) for ; Wed, 26 Nov 2003 01:33:44 -0600 (CST) Received: (from james@localhost) by bigtex.jrv.org (8.12.1/8.12.1/Submit) id hAQ7XheT012676; Wed, 26 Nov 2003 01:33:43 -0600 (CST) Date: Wed, 26 Nov 2003 01:33:43 -0600 (CST) Message-Id: <200311260733.hAQ7XheT012676@bigtex.jrv.org> From: James Van Artsdalen To: freebsd-amd64@freebsd.org 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: Wed, 26 Nov 2003 07:33:46 -0000 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.