Module Name:	syssrc
Committed By:	thorpej
Date:		Fri Jan 28 23:23:52 UTC 2000

Modified Files:
	syssrc/sys/dev/ic: tulip.c tulipvar.h

Log Message:
When possible, use ring mode for descriptors.  Not only is this slightly
more efficient on genuine DEC chips, but some clones apparently Lose Badly
if you use chain mode.  To further complicate things, some clones *only*
do chain mode, so make this whole mess conditional.


To generate a diff of this commit:
cvs rdiff -r1.40 -r1.41 syssrc/sys/dev/ic/tulip.c
cvs rdiff -r1.26 -r1.27 syssrc/sys/dev/ic/tulipvar.h

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.