From owner-freebsd-alpha@FreeBSD.ORG Mon Jun 28 12:55:26 2004 Return-Path: Delivered-To: freebsd-alpha@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 74E6616A4D1 for ; Mon, 28 Jun 2004 12:55:26 +0000 (GMT) Received: from mail.unixiron.org (mail.unixiron.org [62.80.47.42]) by mx1.FreeBSD.org (Postfix) with ESMTP id 644E943D1D for ; Mon, 28 Jun 2004 12:55:25 +0000 (GMT) (envelope-from michael@unixiron.org) Received: from localhost (mail.unixiron.org [62.80.47.42]) (authenticated bits=0) by mail.unixiron.org (8.12.11/8.12.11) with ESMTP id i5SCsfMI003137 (version=TLSv1/SSLv3 cipher=RC4-MD5 bits=128 verify=NO); Mon, 28 Jun 2004 14:54:43 +0200 (CEST) (envelope-from michael@unixiron.org) From: Michael Kukat To: ticso@cicely.de Date: Mon, 28 Jun 2004 14:54:39 +0200 User-Agent: KMail/1.5.4 References: <20040627212654.Q437@calchas.unixiron.org> <20040628124809.GG1787@cicely12.cicely.de> In-Reply-To: <20040628124809.GG1787@cicely12.cicely.de> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200406281454.41150.michael@unixiron.org> X-Authenticated-Sender: user michael from 62.80.47.42 X-Virus-Scanned: clamd / ClamAV version 0.67-1, clamav-milter version 0.67a X-Spam-Status: No, hits=-100.0 required=2.0 tests=USER_IN_WHITELIST autolearn=no version=2.63 X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on calchas.unixiron.org cc: freebsd-alpha@freebsd.org Subject: Re: Alphastation 200 (and others) PCI-PCI bridge fix X-BeenThere: freebsd-alpha@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Porting FreeBSD to the Alpha List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 28 Jun 2004 12:55:26 -0000 Hi ! On Monday 28 June 2004 14:48, you wrote: > The IRQs on the AS200 should be shareable as on every PCI architecture. Tried out - works. New diff available :) I'm trying to test all this a bit with some stress on the shared interrupts this evening. > The pci slots on a PC164 are all on the same bus, so I doubt that it'll > make a big difference. Hm. isn't there something in the specs, that a 64bit bus will be degraded to 32bit, if there are 32bit cards present? So this 64bit stuff would not be too useful in this box... > We already have generic code to do interrupt routing over bridges. > See Rev 1.14 in dec_axppci_33.c for a example on how to use it. > It's quite simple to do - getting someone with hardware to test is the > biggest challenge. > I can create you a patch if you need. I'll try to find the time to get the version (uhm, FreeBSD-cvs mirror at home, no problem so :) and screw it in. Hope to get my tests done with all puzzle parts put together. > The generic code used by axppci33 does :) Hope to be able to bring a "final version" of the patch soon. ...Michael