Re: SMP support on sparc64?

Yes, I have most docs but not complete.  I'm hesitating between SCSI GPIB
and SBus GPIB (both from National Instruments).  Luckily, both are pretty
cheap and easy to find at ebay nowadays.

All docs on TNT4882 GPIB controller and LSI SBus DMA controller L64853A
chip on the SBus GPIB card are available online.  So, making the body of
the drivers are doable but can't find necessary information for the
initialization part (like SBus I/O memory mapping for accessing the GPIB
controller registers on the SBus card).  Still no clues other than reverse
engineering Solaris 2 drivers.  Would there be an easy way to figure it
out?

With the SCSI GPIB box, since all the SCSI commands to control GPIB bus are
well documented, working with it seems easier than the SBus card.  But not
sure if there could be some hassles that I'm not aware of to make it work
on sparc64 platform.

Sungwon

On Fri, Jun 12, 2020 at 1:43 AM Michael <[email protected]> wrote:

> Hello,
>
> On Wed, 10 Jun 2020 20:01:05 -0700
> SungWon Chung <[email protected]> wrote:
>
> > Thank you for the good news. As I was not sure of SMP support, I was
> > hesitating before working on IEEE-488.2 device driver to bring up Ultra 2
> > for some long-time lab measurement automation. Happy to continue with
> > NetBSD :)
>
> Hmm, somewhere here I have an SBus GPIB card - do you actually have
> docs for those?
>
> have fun
> Michael
>