From mboxrd@z Thu Jan 1 00:00:00 1970 Received: with ECARTIS (v1.0.0; list linux-mips); Mon, 16 Jan 2006 16:55:21 +0000 (GMT) Received: from sorrow.cyrius.com ([65.19.161.204]:43282 "EHLO sorrow.cyrius.com") by ftp.linux-mips.org with ESMTP id S8133509AbWAPQzC (ORCPT ); Mon, 16 Jan 2006 16:55:02 +0000 Received: by sorrow.cyrius.com (Postfix, from userid 10) id 0D12064D54; Mon, 16 Jan 2006 16:58:33 +0000 (UTC) Received: by deprecation.cyrius.com (Postfix, from userid 1000) id 475AF8517; Mon, 16 Jan 2006 16:58:25 +0000 (GMT) Date: Mon, 16 Jan 2006 16:58:25 +0000 From: Martin Michlmayr To: akpm@osdl.org Cc: Linux MIPS List , grundler@parisc-linux.org Subject: Re: Tulip RaQ2 64 Bit Fix Message-ID: <20060116165825.GG5798@deprecation.cyrius.com> References: <4393CD9F.3090305@jg555.com> <20051205114456.GA2728@linux-mips.org> <20060116160355.GB28383@deprecation.cyrius.com> <43CBC97E.3090800@jg555.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <43CBC97E.3090800@jg555.com> User-Agent: Mutt/1.5.11 Return-Path: X-Envelope-To: <"|/home/ecartis/ecartis -s linux-mips"> (uid 0) X-Orcpt: rfc822;linux-mips@linux-mips.org Original-Recipient: rfc822;linux-mips@linux-mips.org X-archive-position: 9905 X-ecartis-version: Ecartis v1.0.0 Sender: linux-mips-bounce@linux-mips.org Errors-to: linux-mips-bounce@linux-mips.org X-original-sender: tbm@cyrius.com Precedence: bulk X-list: linux-mips * Jim Gifford [2006-01-16 08:27]: > >>>The attached patch allows the tulip driver to work with the RaQ2's > >>>network adapter. Without the patch under a 64 bit build, it will > >>>never negotiate and will drop packets. This driver is part of > >>>Linux Parisc, by Grant Grundler. It's currently in -mm, but Jeff > >>>Garzick will not apply it to the main tree. > >>> > >>Why? > Jeff Garzick refuses to apply it do to spinlocks. Andrew Morton is > including in his tree because it fixes issue with Parisc and with > MIPS based builds. So it's kinda of what is the right thing to do. I > also use this driver on my x86 builds, and it actually performs > better. Here is a little history of how Grant made the driver. > > Grant Grundler is the network maintainer for Parisc Linux. He > discovered that the tulip driver didn't perform that well. He > researched the manufactures documentation and found out how to fix > the driver to work to its optimum performance. He did this back in > 2003, has submitted it to Jeff Garzick several times with no > response. Around late 2004, I started to do test builds on 64 bit on > my RaQ2 and discovered that the driver would not auto-negotiate > transfer speeds. Talked to numerous people, then someone put me in > touch with Grant. I tested the driver for about 2 weeks, ask Grant > why it wasn't sent upstream, he told me about the spinlock issue. I > then contacted Andrew Morton, explained everything as I am here, and > he agreed it was needed and tried to get Jeff to add it. Jeff sends > back a one liner say doing to it's use of spinlocks it's not > accepted. Andrew, do you think that issue will be resolved in some way at some point? -- Martin Michlmayr http://www.cyrius.com/