cq_wrap_around_mask
tail_cons_indx = (tail_cons_indx + 1) & cq_wrap_around_mask;
check_indx = new_indx = (tail_cons_indx - 1) & cq_wrap_around_mask;
new_indx = (new_indx - 1) & cq_wrap_around_mask;
check_indx = (check_indx - 1) & cq_wrap_around_mask;
indx = (indx + 1) & cq_wrap_around_mask) {
cons_indx = (new_indx + 1) & cq_wrap_around_mask;
cons_indx = cq->cq_consindx & cq_wrap_around_mask;
cons_indx = (cons_indx + 1) & cq_wrap_around_mask;
cons_indx = cq->cq_consindx & cq_wrap_around_mask;
cons_indx = cq->cq_consindx & cq_wrap_around_mask;
cons_indx = (cons_indx + 1) & cq_wrap_around_mask;
cons_indx = cq->cq_consindx & cq_wrap_around_mask;