re-enqueueing an already free ccb.
Prepare the background to have a unique initialization function for
all of the supported host adapters.
Rename a lot of #define in a more sane way.
Move Carriers initialization and defines in adwmcode.{c,h}
Don't lose Carrier nodes in case of a BUS/Chip reset explicitly invoked
after a DMA failure.
XXX - DMA failure still arise when AdvanSys U[2]W host adapters are used
in conjunction with Intel 82443BX Host Bridge/Controller (rev. 0x03).
!?!Have to understand why!?!
3d7bdc4c94