IN  tLOWERCONNECTION    *pLowerConn,
  IN  ULONG               Length,
  OUT PVOID               *ppIrp

Routine Description:

    This routine sets up the indicate buffer to get data from the transport
    when the indicate buffer already has some data in it.  A partial MDL is
    built and the attached to the irp.
    before we indicate.


Return Value:

    NTSTATUS - Status of receive operation