I just got the driver working for the Sun SCSI3 VME card that is
sometimes found in Sun4 machines (at least I think it is).
Grab it from sun3/dev/si.c (and scsi_*.h) if you want it.

This driver is based on the old mach3 scsi_5380 driver, and
does not use interrupts or DMA, so it is slow.  I have been
working on a better one, but that will take a while...

Gordon