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net/mlx5e: CT: extract a memcmp from a spinlock section

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This reduces the time the lock is held and reduces contention.

Signed-off-by: Cosmin Ratiu <cratiu@nvidia.com>
Reviewed-by: Dragos Tatulea <dtatulea@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/1752009387-13300-3-git-send-email-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Cosmin Ratiu 2025-07-09 00:16:24 +03:00 committed by Jakub Kicinski
parent ade89d1f24
commit 122d86aa2a
1 changed files with 4 additions and 1 deletions
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5
drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c
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@ -1195,6 +1195,7 @@ mlx5_tc_ct_block_flow_offload_add(struct mlx5_ct_ft *ft,
struct flow_action_entry *meta_action;
unsigned long cookie = flow->cookie;
struct mlx5_ct_entry *entry;
bool has_nat;
int err;
meta_action = mlx5_tc_ct_get_ct_metadata_action(flow_rule);
@ -1236,6 +1237,8 @@ mlx5_tc_ct_block_flow_offload_add(struct mlx5_ct_ft *ft,
err = mlx5_tc_ct_rule_to_tuple_nat(&entry->tuple_nat, flow_rule);
if (err)
goto err_set;
has_nat = memcmp(&entry->tuple, &entry->tuple_nat,
sizeof(entry->tuple));
spin_lock_bh(&ct_priv->ht_lock);
@ -1244,7 +1247,7 @@ mlx5_tc_ct_block_flow_offload_add(struct mlx5_ct_ft *ft,
if (err)
goto err_entries;
if (memcmp(&entry->tuple, &entry->tuple_nat, sizeof(entry->tuple))) {
if (has_nat) {
err = rhashtable_lookup_insert_fast(&ct_priv->ct_tuples_nat_ht,
&entry->tuple_nat_node,
tuples_nat_ht_params);