net/mlx5: enforce RSS key length limitation

[dpdk.git] / drivers / net / mlx5 / mlx5_ethdev.c

diff --git a/drivers/net/mlx5/mlx5_ethdev.c b/drivers/net/mlx5/mlx5_ethdev.c
index f5511ce7008fda019077e6cdb05aaf4446f73436..365101af9874a6effe6664c81b2a545edecd2590 100644 (file)
--- a/drivers/net/mlx5/mlx5_ethdev.c
+++ b/drivers/net/mlx5/mlx5_ethdev.c
@@ -329,7 +329,8 @@ mlx5_dev_configure(struct rte_eth_dev *dev)
        if (use_app_rss_key &&
            (dev->data->dev_conf.rx_adv_conf.rss_conf.rss_key_len !=
             rss_hash_default_key_len)) {
-               /* MLX5 RSS only support 40bytes key. */
+               DRV_LOG(ERR, "port %u RSS key len must be %zu Bytes long",
+                       dev->data->port_id, rss_hash_default_key_len);
                rte_errno = EINVAL;
                return -rte_errno;
        }