From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from smtp1.powertech.no (smtp1.powertech.no [195.159.0.145]) by dsl2.external.hp.com (Postfix) with ESMTP id 562FF482A for ; Thu, 30 May 2002 03:00:58 -0600 (MDT) To: Richard Hirst Subject: Re: [parisc-linux] Fast-Wide Diff. SCSI on a 735 Message-ID: <1022748512.3cf5e760c85db@nyepost.start.no> Date: Thu, 30 May 2002 10:48:32 +0200 (CEST) From: Andy Walker Cc: parisc-linux@lists.parisc-linux.org References: <200205291104.AA315359834@mail.centraltx.com> <20020529201334.8C23C482A@dsl2.external.hp.com> <1022707216.3cf54610c5ee8@nyepost.start.no> <20020530081452.GS3471@sleepie.demon.co.uk> In-Reply-To: <20020530081452.GS3471@sleepie.demon.co.uk> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Sender: parisc-linux-admin@lists.parisc-linux.org Errors-To: parisc-linux-admin@lists.parisc-linux.org List-Help: List-Post: List-Subscribe: , List-Id: parisc-linux developers list List-Unsubscribe: , List-Archive: Quoting Richard Hirst : > > Specs for Outfield are available now, look for hardball_ers.pdf on the > web site. Actually I saw that - so I'll print 'em out and start digesting the info this evening. Haven't hacked on a SCSI driver since the earliest 1.1.x BusLogic days, but I can at least try to understand what's going on. > Other 53c720 interfaces (e.g. bluefish) are supported via the > ncr53c8xx.c driver, but that doesn't work for outfield because the 735 > is not cache coherent. If you remember Richard, I was having all sorts of trouble with a Bluefish card in a 725/100 a while back. Think I got the same results in a C110 too. Recognized as Zalon, but hung up with SCSI timeouts if there was a disk attached. HP-UX booted happily off the same controller & disk. > My next idea was to add basic 53c720 support to the 53c700 driver, as > that works older hardware. Ryan was interested in looking at that a while > back, but I don't know what happened. My excuse is that I don't have 735 > h/w to test on so it is no fun - but that's a poor excuse really as I could > use my bluefish card to get 53c700 working with 53c720. > > 53c700.c would drive the 53c720 chip in 53c700 mode, so would be > relatively low performance (more interrupts than you would need if you > made the most of the 53c720 features), and it would be 8 bit only. > Those issues could perhaps be fixed in time, and it would be better > than nothing, anyway. > > Richard Well, I've got a 735, a Bluefish card, a B132L with Zalon onboard, and no current hacking project at home. Unfortunately I also have a wife, two kids and a reasonable social life, so no wild promises ;-) -Andy ------------------------------------------------------------ Få din egen @start.no-adresse gratis på http://www.start.no/