I did finish an 2.11BSD and RT11 driver for the hardware years later,
but never went back at NetBSD.
http://www.chdickman.com/qbus_ide/
On Fri, May 16, 2014 at 11:37 AM, Mouse <mouse at rodents-montreal.org> wrote:
 I never saw the hardware.  The person who was working on the hardware
 gave me remote console (and network) access to the machine; I was
 trying to write a driver for it for NetBSD/vax.  I never got it
 working.  The project - from my point of view - kinda fell apart while
 I was still struggling with, based on fuzzy memory, some kind of
 addressing issue. 
I had the I/O address space kind of scrambled from the normal ATA
order. There was a problem with interrupt handling logic too.
 I still appear to have all the code I wrote, in case that matters.
                                         Mouse 
-chuck