From owner-freebsd-scsi Mon Mar 16 12:00:07 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id MAA05779 for freebsd-scsi-outgoing; Mon, 16 Mar 1998 12:00:07 -0800 (PST) (envelope-from owner-freebsd-scsi@FreeBSD.ORG) Received: from sendero.simon-shapiro.org (sendero-fddi.Simon-Shapiro.ORG [206.190.148.2]) by hub.freebsd.org (8.8.8/8.8.8) with SMTP id LAA05642 for ; Mon, 16 Mar 1998 12:00:01 -0800 (PST) (envelope-from shimon@simon-shapiro.org) Received: (qmail 20401 invoked from network); 16 Mar 1998 20:07:55 -0000 Received: from localhost.simon-shapiro.org (HELO sendero-fxp0.simon-shapiro.org) (@127.0.0.1) by localhost.simon-shapiro.org with SMTP; 16 Mar 1998 20:07:55 -0000 Message-ID: X-Mailer: XFMail 1.3-alpha-031298 [p0] on FreeBSD X-Priority: 3 (Normal) Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 8bit MIME-Version: 1.0 In-Reply-To: <19980316124614.64072@mcs.net> Date: Mon, 16 Mar 1998 12:07:55 -0800 (PST) Reply-To: shimon@simon-shapiro.org Organization: The Simon Shapiro Foundation From: Simon Shapiro To: Karl Denninger Subject: Re: Any thought given to... Cc: scsi@FreeBSD.ORG Sender: owner-freebsd-scsi@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org On 16-Mar-98 Karl Denninger wrote: > On Mon, Mar 16, 1998 at 10:44:07AM -0800, Simon Shapiro wrote: >> >> On 16-Mar-98 Karl Denninger wrote: >> > Making CAM a conditional extract-and-compile thing (ie: an option to >> > "make >> > world")? >> > >> > Is this even reasonable to attempt within the confines of CVS? >> >> Last I checked, CAM still lacked (aside from most SCSI HBA drivers) >> complete support for tapes, CD, CPU, WORM, etc., > > Tapes do in fact work in the default density (which is where most people > use > them). I know 'cause I'm doing it :-) Good. > CDs appear to work, including autochangers (!). So do removable media > (which is problematic with the existing layer). Even better. > There ARE host adapters which are missing - a lot of them. I know I would like to move the DPT driver to CAM. Just where is the time? >> Since it is not possible >> to have CAM and existing layers co-exist (Is this correct, Justin?), >> once >> you switch over, you cannot have a complete, functional system. This, I >> think, will inhibit what you are asking for. >> >> Simon > > That's why I suggested making it a compile-time (or even CVS extract > time) > option. Compile time would be even better, but that's admittedly a PITA; > extract-time might be a lot easier to do. This is Justin's baby. He should make the decision. I'll voite for compile time option. > I agree that its not "prime time" at this point. But it is a major > improvement in a number of areas over the old drivers, including > performance levels under real load profiles. Although I was born in Tiberias and not Missuri, I'd concur with you when I see it. I see no under-load failures with the existing code. The only thing visible in my corner is dropping interrupts. This I am sure comes from elsewhere (fast_intr and such). Simon To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message