K 10
svn:author
V 3
bde
K 8
svn:date
V 27
1998-11-22T17:40:32.000000Z
K 7
svn:log
V 339
Reduce i/o overheads by not preserving the channel access register in
interrupt handlers.  Instead, load and use it atomically as necessary.
This reduces mode switching overhead for "polled" mode interrupt handling
from 5 i/o's to 3 (per service type, per port) so that polled mode is only
slightly more inefficient than "interrupt" mode.

END