[dpdk-dev] [PATCH v4 21/26] net/mlx5: adjust the hash bucket size

[Suanming Mou <suanmingm@nvidia.com>]

With the new per core optimization to the list, the hash bucket size
can be tuned to a more accurate number.

This commit adjusts the hash bucket size.

Signed-off-by: Suanming Mou <suanmingm@nvidia.com>
Acked-by: Matan Azrad <matan@nvidia.com>
---
 drivers/net/mlx5/linux/mlx5_os.c | 2 +-
 drivers/net/mlx5/mlx5.c          | 2 +-
 drivers/net/mlx5/mlx5_defs.h     | 6 +++---
 drivers/net/mlx5/mlx5_flow.c     | 5 ++---
 4 files changed, 7 insertions(+), 8 deletions(-)

diff --git a/drivers/net/mlx5/linux/mlx5_os.c b/drivers/net/mlx5/linux/mlx5_os.c
index 468d8173c4..cfb33251cf 100644
--- a/drivers/net/mlx5/linux/mlx5_os.c
+++ b/drivers/net/mlx5/linux/mlx5_os.c
@@ -50,7 +50,7 @@
 #include "mlx5_nl.h"
 #include "mlx5_devx.h"
 
-#define MLX5_TAGS_HLIST_ARRAY_SIZE 8192
+#define MLX5_TAGS_HLIST_ARRAY_SIZE	(1 << 15)
 
 #ifndef HAVE_IBV_MLX5_MOD_MPW
 #define MLX5DV_CONTEXT_FLAGS_MPW_ALLOWED (1 << 2)
diff --git a/drivers/net/mlx5/mlx5.c b/drivers/net/mlx5/mlx5.c
index 499d8449ac..08e795ea4c 100644
--- a/drivers/net/mlx5/mlx5.c
+++ b/drivers/net/mlx5/mlx5.c
@@ -373,7 +373,7 @@ static const struct mlx5_indexed_pool_config mlx5_ipool_cfg[] = {
 #define MLX5_FLOW_MIN_ID_POOL_SIZE 512
 #define MLX5_ID_GENERATION_ARRAY_FACTOR 16
 
-#define MLX5_FLOW_TABLE_HLIST_ARRAY_SIZE 4096
+#define MLX5_FLOW_TABLE_HLIST_ARRAY_SIZE 1024
 
 /**
  * Decide whether representor ID is a HPF(host PF) port on BF2.
diff --git a/drivers/net/mlx5/mlx5_defs.h b/drivers/net/mlx5/mlx5_defs.h
index 906aa43c5a..ca67ce8213 100644
--- a/drivers/net/mlx5/mlx5_defs.h
+++ b/drivers/net/mlx5/mlx5_defs.h
@@ -178,15 +178,15 @@
 				 sizeof(struct rte_ipv4_hdr))
 
 /* Size of the simple hash table for metadata register table. */
-#define MLX5_FLOW_MREG_HTABLE_SZ 4096
+#define MLX5_FLOW_MREG_HTABLE_SZ 64
 #define MLX5_FLOW_MREG_HNAME "MARK_COPY_TABLE"
 #define MLX5_DEFAULT_COPY_ID UINT32_MAX
 
 /* Size of the simple hash table for header modify table. */
-#define MLX5_FLOW_HDR_MODIFY_HTABLE_SZ (1 << 16)
+#define MLX5_FLOW_HDR_MODIFY_HTABLE_SZ (1 << 15)
 
 /* Size of the simple hash table for encap decap table. */
-#define MLX5_FLOW_ENCAP_DECAP_HTABLE_SZ (1 << 16)
+#define MLX5_FLOW_ENCAP_DECAP_HTABLE_SZ (1 << 12)
 
 /* Hairpin TX/RX queue configuration parameters. */
 #define MLX5_HAIRPIN_QUEUE_STRIDE 6
diff --git a/drivers/net/mlx5/mlx5_flow.c b/drivers/net/mlx5/mlx5_flow.c
index 367fbc8e4a..b92ebe9029 100644
--- a/drivers/net/mlx5/mlx5_flow.c
+++ b/drivers/net/mlx5/mlx5_flow.c
@@ -8642,7 +8642,7 @@ mlx5_flow_tunnel_allocate(struct rte_eth_dev *dev,
 		DRV_LOG(ERR, "Tunnel ID %d exceed max limit.", id);
 		return NULL;
 	}
-	tunnel->groups = mlx5_hlist_create("tunnel groups", 1024, false, true,
+	tunnel->groups = mlx5_hlist_create("tunnel groups", 64, false, true,
 					   priv->sh,
 					   mlx5_flow_tunnel_grp2tbl_create_cb,
 					   mlx5_flow_tunnel_grp2tbl_match_cb,
@@ -8751,8 +8751,7 @@ int mlx5_alloc_tunnel_hub(struct mlx5_dev_ctx_shared *sh)
 		return -ENOMEM;
 	LIST_INIT(&thub->tunnels);
 	rte_spinlock_init(&thub->sl);
-	thub->groups = mlx5_hlist_create("flow groups",
-					 rte_align32pow2(MLX5_MAX_TABLES),
+	thub->groups = mlx5_hlist_create("flow groups", 64,
 					 false, true, sh,
 					 mlx5_flow_tunnel_grp2tbl_create_cb,
 					 mlx5_flow_tunnel_grp2tbl_match_cb,
-- 
2.25.1