MLX5_SND_DBR
iq->wq.db = &iq->wq.db[MLX5_SND_DBR];
sq->wq.db = &sq->wq.db[MLX5_SND_DBR];
sq->wq.db = &sq->wq.db[MLX5_SND_DBR];
qp->db.db[MLX5_SND_DBR] = 0;
qp->db.db[MLX5_SND_DBR] = cpu_to_be32(qp->sq.cur_post);
wq->db = &wq->db[MLX5_SND_DBR];