1.  print model number when coming up.
2.  remove cache line size stuff.  pcie doesn't have a cache-line size, at least
in the sense it was being used.
3.  properly set the size for non-ip packets.
4.  i82563cleanup.  revert to seperate if's.  the tweaks are somewhat
independent of model and might apply to one some or many models.
5.  revert 32bit wide registers to eight places.  it's easier for me to keep
track of the bits.
6.  remove a bunch of depricated enums.