Re: DECStation: Support for PMAZ-AA TC SCSI card?

Hi Maciej,

quoted

KN05 V2.1k

quoted

quoted

cnfg

 3: KN05     DEC      V2.1k    TCF0  (256 MB)
                                     (enet: 08-00-2b-37-63-76)
                                     (SCSI = 7)
 1: PMAZ-AA  DEC      V5.3d    TCF0  (SCSI = 7)

 Well, you have a mixed system, so it's quite possible PMAZ-A support does
not work reliably anywhere.  I don't have such a card, but specs are
available and the support code is about one screen long.  So it should be
fairly trivial to verify -- I'll look at it. 

What do you mean by a mixed system?
 

 Also you have a KN05 system, which doesn't help, unfortunately.  The KN05
module implements aggressive posting of uncached (read: iomem) writes (see
also /proc/interrupts on your system) and synchronization primitives are
non-existent.  Since for half a year there is no agreement on how generic
synchronization should look like for MIPS, I'm more and more tempted to
add a local hack which at least will let DECstations to perform reliably.
It's quite possible the lack of synchronization is the lone reason of your
problems. 

Well, if there is anything I could do to help you by testing things,
I'm eager to do so. 

I also have a 5000/200 system. Would it be interesting to put the
PMAZ-AA into that system, and see how it behaves?

Regards,
Karel.


-- 
Karel van Houten

----------------------------------------------------------
The box said "Requires Windows 95 or better."
I can't understand why it won't work on my Linux computer. 
----------------------------------------------------------