test-drb February 2002

test-drb@ccmp.vtda.org

293 participants
1043 discussions

DSSI support for NetBSD: request for docs.

by cmcmanis＠mcmanis.com

Jochen wrote: > You mean it is possible to speak MSCP on a DSSI bus without > an additional protocol layer? > Or do you mean that (only?) non-DSSI controllers a la RQDXx and > KU]DA50 can speak MSCP without SCA/SCS? And Roar wrote: I have got a very strong feeling I was wrong. (Sorry) > But if you have to talk SCA/SCS with the DSSI-devices, that might > be a > problem, since SCA/SCS is not published, and no implementations are > available. In my experience with the SII chip you set up a buffer in its shared memory with the MSCP "packet" layed out, and the node number of where you wanted it to go at the front. Then you write the that address into the descriptor register and the SII chip picks it up and drops it off at the drive. In my case I was writing the equivalent of the SCSI INQUIRE command, and then a bit later, the SII chip interrupts you to tell you that there is a new descriptor in its buffers and if you look at it (which I did from the kernel debugger because I had just panic'd on the interrupt :-) you can see that the drive has returned to you the information you requested. Questions that were unanswered in my mind when I put this down about this time last year were: 1) maintaining the physical/virtual mapping between the 128KB buffer and main memory. 2) Hooking the MSCP code that was there so that it could fill in the packets. 3) Writing the bus "enumerator" for config so that I could create a device instance for each disk I found (tapes I would ignore for now) 4) Hooking send and receive queues through a top level structure that would feed/retrieve them from the SII chip. So I tried last night to get a 'diff' of my build tree from the cvs tree but since its from 1.5.1 pre-release, the number of diffs is _huge_ relative to the 1.5.2 tree. I'll put a tarball of my sys tree up later today for anyone who might want to look at it. What I've not been able to find was my code that set up the INQ command. It shouldn't be too hard to recreate however. --Chuck

22 years, 9 months

Ebay 5360

by ceby2＠csc.com

Folks -- I made the ghastly mistake of bidding on an IBM 5360 ($25). The sale closes today, and it doesn't look like there'll be other bidders to get me off the hook. So I thought I do the seller a little favor and spread the publicity around for him, in case any of you have some unused warehouse space and were stumped for a way to fill it. I, of course don't. All you need do is outbid $25 on item 2004672608. ;->~ Seriously (or slightly more seriously) if I'm landed with this thing I'll probably want to make copies of all the disks and manual then donate it to a museum collection -- should any be interested. Or a private collector if their not. The real reason I bid on it was to ensure it's survival of course. I wasn't actually planning on testing the floor joists in my 1-bedroom apartment. As far as I can tell it's complete, with two printers and two tape drives. And it's located in Connecticut. If anyone else has a better idea for preserving it, or wants to lend me a hand (I'm in Massachussetts) please chime in. Thanks, Colin Eby Senior Consultant CSC Consulting

22 years, 9 months

MicroVAX 4000/VLC

by DAW＠yalepress3.unipress.yale.edu

Umm, IIRC, I just stuck it in. Yes, you're supposed to have done some hardware changes, but I thought I'd try anyway. ARCconsole reports it right, but I haven't done any real benchmark to see if it really is running at 233... I'll have to dig up the info. And maybe someone here can burn a new chip for me? --- David A Woyciesjes --- C & IS Support Specialist --- Yale University Press --- mailto:david.woyciesjes@yale.edu --- (203) 432-0953 --- ICQ # - 90581 Mac OS X 10.1.2 - Darwin Kernel Version 5.2: Fri Dec 7 21:39:35 PST 2001 Running since 01/22/2002 without a crash > ---------- > From: Megan > Reply To: classiccmp(a)classiccmp.org > Sent: Tuesday, February 26, 2002 6:09 PM > To: classiccmp(a)classiccmp.org > Subject: RE: MicroVAX 4000/VLC > > > I have a 233 MHz CPU from a dead Multia in my AXPpci33 > > What did you have to do to get it working? I was under the impression > that using a faster processor required some board modifications... > > If it will simply work, I guess I need to locate a 233 Mhz CPU. > > Megan Gentry > Former RT-11 Developer > > +--------------------------------+-------------------------------------+ > | Megan Gentry, EMT/B, PP-ASEL | Internet (work): gentry!zk3.dec.com | > | Unix Support Engineering Group | (home): mbg!world.std.com | > | Compaq Computer Corporation | addresses need '@' in place of '!' | > | 110 Spitbrook Rd. ZK03-2/T43 | URL: http://world.std.com/~mbg/ | > | Nashua, NH 03062 | "pdp-11 programmer - some assembler | > | (603) 884 1055 | required." - mbg KB1FCA | > +--------------------------------+-------------------------------------+ > >

22 years, 9 months

RX02 / DSD440 problem

by pete＠dunnington.u-net.com

On Feb 26, 19:00, Jerome Fine wrote: > I seem to remember someone saying that the DSD 440 reads block zero > of drive zero on power on, then times out and jumps to location zero > to start. That's how most 3rd-party RX controllers seem to work, in my experience. > Try typing in the MSCP bootstrap. Why? The RX02/DSD440 is a DY: device, not DU: > The standard RX02 bootstrap uses UNIT=0, so it may need to > be modified to use UNIT=1 for DY1:, however that stuff is not > accessible to me right now. Does anyone have the release > notes for RT-11? It may be there. I've had it online for a long time, at http://www.dunnington.u-net.com/public/ODT/Listings/RXV21BootD I recently made a minor correction (almost all the DEC printed copies have several errors). It's a Unit 0 bootstrap, but changing the word at locations 001036 from 407 to 427 should make it work for Unit 1. At least, I think so; I used it recently and I think that's what I did. -- Pete Peter Turnbull Network Manager University of York

22 years, 9 months

DEC BC09J cable

by Mzthompson＠aol.com

On Tue, 26 Feb 2002, Alan Pearson <alan.pearson(a)cramer.com> wrote: > I'm looking for a DEC BC09J cable to hook up a VS3100 to a CD drive... That's the same cable as used with the DECstation 2100/3100. A couple DS3100s I hauled home had a different cable, p/n BC56H-03. This one is a few inches longer and the cable comes straight into the 50 pin Centronics connector as opposed to the BC09J which is right angle. HTH Mike

22 years, 9 months

ebay: control data tape drive

by dhquebbeman＠theestopinalgroup.com

> I came across this ebay item, its some sort of Control Data tape drive. > I'm just mentioning it in case someone in the Virginia area is interested. I see he's relisted it... I considered buying this last year when he ran it previously, but he's not interested in shipping it, and I don't have a Virginia connection likely to help out. :( -dq

22 years, 9 months

ebay: control data tape drive

by lemay＠cs.umn.edu

I came across this ebay item, its some sort of Control Data tape drive. I'm just mentioning it in case someone in the Virginia area is interested. http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItem&item=2005305942 -Lawrence LeMay

22 years, 9 months

Reply to: RE: Rush! ( was: RE: Once in a Lifetime, Twice in F orever)

by csmith＠amdocs.com

> -----Original Message----- > From: nerdware(a)ctgonline.org [mailto:nerdware@ctgonline.org] > I remember reading an early interview with Geddy and he was > talking about auditioning drummers after Rutsey left. He said > Peart came in, and while they were impressed with his > drumming abilities, they were also thinking, "Hey! This guy can READ!" I suppose that is kind of impressive these days, sadly... on the other hand, if he reads that much Rand, I would have been more disappointed in the quality of his books, than concerned with whether he could read. Personal opinion, of course. Chris Christopher Smith, Perl Developer Amdocs - Champaign, IL /usr/bin/perl -e ' print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n"); '

22 years, 9 months

Stanco della solita routine quotidiana??

by jessica＠hotmail.com

Skipped content of type multipart/related

22 years, 9 months

Michael Sokolov Cooking: The Ultimate VAX

by csmith＠amdocs.com

> -----Original Message----- > From: Jeffrey S. Sharp [mailto:jss@subatomix.com] > I vote you call this new breed of VAXen the SuperVAX. Start > out with the > SuperVAX 1000 and see where it takes you. Whatever the name, > I want one. Or perhaps you could call it something like "Extended VAX" --err, well, I suppose that one will still be in use for a couple of years... :) Chris Christopher Smith, Perl Developer Amdocs - Champaign, IL /usr/bin/perl -e ' print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n"); '

22 years, 9 months

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test-drb February 2002