ntb_db_read
} else if (ntb_db_read(qp->ndev) & BIT_ULL(qp->qp_num)) {
ntb_db_read(qp->ndev);
if (ntb_db_read(nt->ndev) & nt->msi_db_mask) {
u64 peer_mask = ntb_db_read(nm->ntb);
ntb_db_vector_mask(perf->ntb, vec), ntb_db_read(perf->ntb));
if (wait_event_interruptible(tc->db_wq, ntb_db_read(tc->ntb) == val))
db_bits = ntb_db_read(tc->ntb);