From owner-freebsd-ia64 Mon Jan 27 23:30:23 2003 Delivered-To: freebsd-ia64@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 555F937B401 for ; Mon, 27 Jan 2003 23:30:22 -0800 (PST) Received: from canning.wemm.org (canning.wemm.org [192.203.228.65]) by mx1.FreeBSD.org (Postfix) with ESMTP id F141E43F93 for ; Mon, 27 Jan 2003 23:30:21 -0800 (PST) (envelope-from peter@wemm.org) Received: from wemm.org (localhost [127.0.0.1]) by canning.wemm.org (Postfix) with ESMTP id B3E022A89E; Mon, 27 Jan 2003 23:30:21 -0800 (PST) (envelope-from peter@wemm.org) X-Mailer: exmh version 2.5 07/13/2001 with nmh-1.0.4 To: Yasuyuki Okase Cc: jnavarro@cs.rice.edu, freebsd-ia64@FreeBSD.ORG Subject: Re: Problems with fxp driver In-Reply-To: <20030128145803D.yokase@din.or.jp> Date: Mon, 27 Jan 2003 23:30:21 -0800 From: Peter Wemm Message-Id: <20030128073021.B3E022A89E@canning.wemm.org> Sender: owner-freebsd-ia64@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org Yasuyuki Okase wrote: > From: Juan E Navarro > Message-ID: <3E3606DB.D65C7AD3@cs.rice.edu> > > > I forgot to mention that I've tried two different i2000's so far. So, > > next question would be: > > has anyone succeeded in using the fxp driver in an i2000 box? > > Yes. > However, only 2GB RAM has been recognized. The fxp driver does not yet use the busdma subsystem. This means that it cannot use memory above the 4GB mark. In the meantime, we ignore memory above the 4GB mark. Note that on most ia64 systems with more than 2GB of ram, only 2GB is reachable inside the bottom 4GB of address space. The other 2GB of space is usually reserved for system and PCI use. If you have 64 bit capable devices (em, bge, mpt, etc) or busdma using devices (ahc, xl, etc), then you can remove the code that ignores the memory above 4GB from the /usr/src/sys/ia64/ia64/machdep.c file. It displays a message about it at boot, so it is easy to find. But do not do this if you want to use fxp or an isp qlogic scsi controller. Cheers, -Peter -- Peter Wemm - peter@wemm.org; peter@FreeBSD.org; peter@yahoo-inc.com "All of this is for nothing if we don't go to the stars" - JMS/B5 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-ia64" in the body of the message