chuck
Mon Sep 29 10:40:40 PDT 1997
Update of /cvsroot/src/sys/dev/ic
In directory netbsd1:/var/slash-tmp/cvs-serv12958

Modified Files:
	midway.c 
Log Message:
midway update:
 [1] add EN_ENIDMAFIX - the byte-aligner on the ENI version of the card
	appears to lose under heavy load so avoid using it.  see comment
	in midway.c for full details.

	note that the Adaptec version of the card works properly under
	load.

	detected by Kenjiro Cho <kjc@csl.sony.co.jp> [confirmed by chuck]
	fix by chuck & kjc

[2] update some freebsd specific code [from kjc]

[3] for circular buffers: ensure there is always one free slot so
	that we can easily tell the difference between a full and
	empty list.   re-structure a few loops to reflect this.
	fixes a problem with mbufs being free'd while still in DMA,
	and makes drive a bit more robust.

	detected and fixed by kjc