Improve warning and debug logs with datapath.
Improve warning and debug logs with datapath.

trentindav/faucet,shivarammysore/faucet,byllyfish/faucet,faucetsdn/faucet,anarkiwi/faucet,Bairdo/faucet,trungdtbk/faucet,REANNZ/faucet,wackerly/faucet,byllyfish/faucet,gizmoguy/faucet,mwutzke/faucet,gizmoguy/faucet,Bairdo/faucet,wackerly/faucet,REANNZ/faucet,trungdtbk/faucet,trentindav/faucet,anarkiwi/faucet,mwutzke/faucet,shivarammysore/faucet,faucetsdn/faucet