diff options
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/en_tc.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c index 64ce762ec1e6..0abfa9b3ec54 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c @@ -162,6 +162,8 @@ struct mlx5e_hairpin_entry { /* a node of a hash table which keeps all the hairpin entries */ struct hlist_node hairpin_hlist; + /* protects flows list */ + spinlock_t flows_lock; /* flows sharing the same hairpin */ struct list_head flows; @@ -735,6 +737,7 @@ static int mlx5e_hairpin_flow_add(struct mlx5e_priv *priv, if (!hpe) return -ENOMEM; + spin_lock_init(&hpe->flows_lock); INIT_LIST_HEAD(&hpe->flows); hpe->peer_vhca_id = peer_id; hpe->prio = match_prio; @@ -782,7 +785,9 @@ attach_flow: flow->nic_attr->hairpin_tirn = hpe->hp->tirn; } flow->hpe = hpe; + spin_lock(&hpe->flows_lock); list_add(&flow->hairpin, &hpe->flows); + spin_unlock(&hpe->flows_lock); return 0; @@ -798,7 +803,10 @@ static void mlx5e_hairpin_flow_del(struct mlx5e_priv *priv, if (!flow->hpe) return; + spin_lock(&flow->hpe->flows_lock); list_del(&flow->hairpin); + spin_unlock(&flow->hpe->flows_lock); + mlx5e_hairpin_put(priv, flow->hpe); flow->hpe = NULL; } |