[dpdk-stable] [PATCH v5 15/34] net/mlx5: fix redundant Direct Verbs resources allocate

[Suanming Mou <suanmingm@nvidia.com>]

All table, tag, header modify, header reformat are supported only on DV
mode. For the OFED version doesn't support these, create the related
redundant DV resources waste the memory.

Add the code section in the HAVE_IBV_FLOW_DV_SUPPORT macro to avoid the
redundant resources allocation.

Fixes: 2eb4d0107acc ("net/mlx5: refactor PCI probing on Linux")
Cc: stable@dpdk.org
Signed-off-by: Suanming Mou <suanmingm@nvidia.com>
Acked-by: Matan Azrad <matan@nvidia.com>
---
 drivers/net/mlx5/linux/mlx5_os.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/net/mlx5/linux/mlx5_os.c b/drivers/net/mlx5/linux/mlx5_os.c
index 4db5d33..db32b39 100644
--- a/drivers/net/mlx5/linux/mlx5_os.c
+++ b/drivers/net/mlx5/linux/mlx5_os.c
@@ -225,7 +225,7 @@
 mlx5_alloc_shared_dr(struct mlx5_priv *priv)
 {
 	struct mlx5_dev_ctx_shared *sh = priv->sh;
-	char s[MLX5_HLIST_NAMESIZE];
+	char s[MLX5_HLIST_NAMESIZE] __rte_unused;
 	int err;
 
 	MLX5_ASSERT(sh && sh->refcnt);
@@ -233,7 +233,9 @@
 		return 0;
 	err = mlx5_alloc_table_hash_list(priv);
 	if (err)
-		return err;
+		goto error;
+	/* The resources below are only valid with DV support. */
+#ifdef HAVE_IBV_FLOW_DV_SUPPORT
 	/* Create tags hash list table. */
 	snprintf(s, sizeof(s), "%s_tags", sh->ibdev_name);
 	sh->tag_table = mlx5_hlist_create(s, MLX5_TAGS_HLIST_ARRAY_SIZE, 0,
@@ -260,6 +262,7 @@
 		err = ENOMEM;
 		goto error;
 	}
+#endif
 #ifdef HAVE_MLX5DV_DR
 	void *domain;
 
-- 
1.8.3.1