mlx5, calc_sq_size(): Make a debug message more informative

Make it clear that qp->sq.wqe_cnt is not the number of WQEs.
Signed-off-by: NBart Van Assche <bart.vanassche@sandisk.com>
Cc: Eli Cohen <eli@mellanox.com>
Acked-by: NLeon Romanovsky <leonro@mellanox.com>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

drivers/infiniband/hw/mlx5/qp.c

@@ -407,7 +407,8 @@ static int calc_sq_size(struct mlx5_ib_dev *dev, struct ib_qp_init_attr *attr,
 	wq_size = roundup_pow_of_two(attr->cap.max_send_wr * wqe_size);
 	qp->sq.wqe_cnt = wq_size / MLX5_SEND_WQE_BB;
 	if (qp->sq.wqe_cnt > (1 << MLX5_CAP_GEN(dev->mdev, log_max_qp_sz))) {
-		mlx5_ib_dbg(dev, "wqe count(%d) exceeds limits(%d)\n",
+		mlx5_ib_dbg(dev, "send queue size (%d * %d / %d -> %d) exceeds limits(%d)\n",
+			    attr->cap.max_send_wr, wqe_size, MLX5_SEND_WQE_BB,
 			    qp->sq.wqe_cnt,
 			    1 << MLX5_CAP_GEN(dev->mdev, log_max_qp_sz));
 		return -ENOMEM;