BIT_VEC64_ELEM_SHIFT
__BIT_VEC64_SET_BIT((vec64)[(idx) >> BIT_VEC64_ELEM_SHIFT], \
__BIT_VEC64_CLEAR_BIT((vec64)[(idx) >> BIT_VEC64_ELEM_SHIFT], \
(((vec64)[(idx) >> BIT_VEC64_ELEM_SHIFT] >> \
last_elem = last_max >> BIT_VEC64_ELEM_SHIFT;
first_elem = RX_SGE(fp->rx_sge_prod) >> BIT_VEC64_ELEM_SHIFT;