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authorAlex Vesker <valex@mellanox.com>2019-10-31 15:24:59 +0200
committerSaeed Mahameed <saeedm@mellanox.com>2019-11-20 12:33:05 -0800
commit83e79489135bdf13590ad09f3341f9ef509c2cf9 (patch)
tree1c2e9e6d003e2dcb80c1be64e645ea690dde32b3
parent829969956f97e880dd01086be47747226e48a3f0 (diff)
net/mlx5: DR, Skip rehash for tables with byte mask zero
The byte mask fields affect on the hash index distribution, when the byte mask is zero, the hash calculation will always be equal to the same index. To avoid unneeded rehash of hash tables mark the table to skip rehash. This is needed by the next patch which will limit table rehash to reduce memory consumption. Fixes: 41d07074154c ("net/mlx5: DR, Expose steering rule functionality") Signed-off-by: Alex Vesker <valex@mellanox.com> Reviewed-by: Erez Shitrit <erezsh@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
-rw-r--r--drivers/net/ethernet/mellanox/mlx5/core/steering/dr_ste.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_ste.c b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_ste.c
index 4efe1b0be4a8..80680765d59c 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_ste.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_ste.c
@@ -671,7 +671,7 @@ static void dr_ste_set_ctrl(struct mlx5dr_ste_htbl *htbl)
htbl->ctrl.may_grow = true;
- if (htbl->chunk_size == DR_CHUNK_SIZE_MAX - 1)
+ if (htbl->chunk_size == DR_CHUNK_SIZE_MAX - 1 || !htbl->byte_mask)
htbl->ctrl.may_grow = false;
/* Threshold is 50%, one is added to table of size 1 */