K 10 svn:author V 7 rwatson K 8 svn:date V 27 2009-06-01T09:43:58.626714Z K 7 svn:log V 310 When cheaply calculating flow identifiers for packets coming in from network device drivers without hardware flow calculation, or for loopback traffic, use a different cheap hash that puts all interesting entropy into the bottom 8 bits of the flow ID, which works well with our default flow ID -> CPU mapping. END