After some cheating esp started to work with fas in 'relaxed' mode:
	no sync negotiation, no tag queueing and 1.5K. yea! Pretty 
	stable, I didn't tested it a lot but was able to newfs, untar
	distribution some times.
	I thought that it would be useful to move it to current, just move
	without merge to see how it behaves. So I did, but it started getting
	DMA errors, no right away but after a little while.
	The driver seems useful under 1.5K (uh, cross my fingers),
	I'm not clear what is better to do next: just continue with 1.5K,
	move it to current first or what? Ideas? Seems that I shall continue
	with 1.5K. 

	Does anybody know easy way to track source-changes between 1.5K and current?
	Or maybe somebody knows what changed around scsi driver since then?

Well, you can go back and find the date that sys/param.h went from 1.5K
to 1.5J, and use cvs diff or cvs annotate wit that date.  Or look
at the source-changes archives from that date.

If you think it's reasonably stable, mail it to me and I'll 
test it out on a plain esp chip to verify that's not broken.

Eduardo