CVS commit: src/sys/dev/ic

[Allen Briggs <briggs%netbsd.org@localhost>]

Module Name:    src
Committed By:   briggs
Date:           Wed Mar 31 14:48:31 UTC 2004

Modified Files:
        src/sys/dev/ic: i82557.c

Log Message:
Be more careful about issuing CU_RESUME in fxp_start()--only doing
it if we think it's probably necessary.  Then do it again in the
tx interrupt handler, if we again think it's necessary.  This
reduces the number of commands we issue the chip.  Prior to this
change, the i82550 (running without extended feature set, so like
a '559) would sometimes fail in fxp_scb_wait() prior to issuing
another CU_RESUME, resulting in
        fxp0: WARNING: SCB timed out!
messages on the console, often followed by device timeouts.


To generate a diff of this commit:
cvs rdiff -r1.81 -r1.82 src/sys/dev/ic/i82557.c

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