I just checked in the 'ahd' driver for Adaptec 790x U320 SCSI chips.
It was ported from the FreeBSD version (by Justin Gibbs) to NetBSD,
by Pascal Renauld. I integrated it into -current and made some
changes.

Since I do not have this hardware myself, I could only compile test
the final result. Hence, the driver has not been enabled by default
yet. If you want to test it, enable the line

	ahd*   at pci? dev ? function ?

..in your kernel config file, and reconfig+recompile your kernel,
and let me know how it works out.

- Frank

-- 
Frank van der Linden                                   fvdl@wasabisystems.com
-----------------------http://www.wasabisystems.com/--------------------------
NetBSD development                                     Embedded, Storage, other