K 10
svn:author
V 7
yongari
K 8
svn:date
V 27
2009-02-09T03:46:15.003060Z
K 7
svn:log
V 711
MFC r185329:
  Implement Rx checksum offload for 82559 or later controllers.
  82559 or later controllers added simple checksum calculation logic
  in RU. For backward compatibility the computed checksum is appended
  at the end of the data posted to Rx buffer. This type of simple
  checksum calculation support had been used on several vendors such
  as Sun HME/GEM, SysKonnect GENESIS and Marvell Yukon controllers.
  Because this type of checksum offload support requires parsing of
  received frame and pseudo checksum calculation with software
  routine it still consumes more CPU cycles than that of full-fledged
  checksum offload controller. But it's still better than software
  checksum calculation.

END