From owner-freebsd-questions Sun Mar 10 16:06:29 1996 Return-Path: owner-questions Received: (from root@localhost) by freefall.freebsd.org (8.7.3/8.7.3) id QAA01326 for questions-outgoing; Sun, 10 Mar 1996 16:06:29 -0800 (PST) Received: from localhost.cdrom.com (localhost.cdrom.com [127.0.0.1]) by freefall.freebsd.org (8.7.3/8.7.3) with SMTP id QAA01321 Sun, 10 Mar 1996 16:06:26 -0800 (PST) Message-Id: <199603110006.QAA01321@freefall.freebsd.org> X-Authentication-Warning: freefall.freebsd.org: Host localhost.cdrom.com [127.0.0.1] didn't use HELO protocol To: se@ZPR.Uni-Koeln.DE (Stefan Esser) cc: "Rodney W. Grimes" , questions@freebsd.org Subject: Re: NCR disk controller, hp disk In-reply-to: Your message of "Sun, 10 Mar 1996 16:11:35 +0100." <199603101511.AA04563@Sisyphos> Date: Sun, 10 Mar 1996 16:06:26 -0800 From: "Justin T. Gibbs" Sender: owner-questions@freebsd.org X-Loop: FreeBSD.org Precedence: bulk >On Mar 8, 23:18, "Rodney W. Grimes" wrote: >} Subject: Re: NCR disk controller, hp disk > >} We really need a SCSI expect to go rewrite the firmware for the NCR cards, >} what we have today has so many incompatibility problems it is getting hard >} to spec systes using it :-(. > >Rod, > >this is plain untrue and you ought to know it ... I think we should spend more of our time working to solve the problems in the system than disparaging FreeBSD's contributors. Perhaps the NCR driver has bugs. Well, so does the aic7xxx driver. Anyway you slice it, writing SCSI adapter firmware isn't easy. My only complaint about the NCR driver is that the format of the script is very difficult for an "outsider" to interpret which makes it hard for me to lend a hand in fixing bugs. Most of what I've learned in doing the aic7xxx driver is directly applicable to any SCSI controller, and many of the problems with one of the two drivers have been reproducible in the other during different times in their development cycles. One thing I'd like to know is if the two problems that were listed here (the Chinon sync problem, and the HP drive doing tagged queuing) are reproducible in the aic7xxx driver. >Regards, Stefan >-- > Stefan Esser, Zentrum fuer Paralleles Rechnen Tel: +49 221 4706021 > Universitaet zu Koeln, Weyertal 80, 50931 Koeln FAX: +49 221 4705160 > ============================================================================= >= > http://www.zpr.uni-koeln.de/~se -- Justin T. Gibbs =========================================== FreeBSD: Turning PCs into workstations ===========================================