Date: Mon, 16 Mar 1998 12:07:55 -0800 (PST) From: Simon Shapiro <shimon@simon-shapiro.org> To: Karl Denninger <karl@mcs.net> Cc: scsi@FreeBSD.ORG Subject: Re: Any thought given to... Message-ID: <XFMail.980316120755.shimon@simon-shapiro.org> In-Reply-To: <19980316124614.64072@mcs.net>
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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
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