Module Name:	syssrc
Committed By:	thorpej
Date:		Sat Aug 17 20:58:05 UTC 2002

Modified Files:
	syssrc/sys/dev/pci: if_wm.c

Log Message:
* After testing for DD on a descriptor, and finding it clear,
  sync that descriptor with PREREAD to make sure that it is evicted
  from the data cache.  From Allen Briggs.
* With the above bug fixed, stop using BUS_DMA_COHERENT, resulting in
  a fairly decent performance improvement on systems where BUS_DMA_COHERENT
  causes descriptors to be accessed uncached (most painful in wm_start()).


To generate a diff of this commit:
cvs rdiff -r1.19 -r1.20 syssrc/sys/dev/pci/if_wm.c

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