FGL-4 performance problem - inbound cut through forwarding


        A problem  has been discovered in the FGL-4 firmware.  Inbound
    cut through forwarding is not enabled and can not be turned on due
    to a bug which  incorrectly  tests  the  FGL-4  hardware  revision
    level.  (FGL-2 cards rev  A  and  B  do  not  support  cut through
    forwarding, and this test was accidently  carried  over  to  FGL-4
    cards.)
    
        The effect of this bug is lower performance inbound on a FGL-4
    card when cut through would normally be a  benefit.   This will be
    fixed for the BL2.2 field test and customer release.