diff options
| author | Vlad Buslov <vladbu@mellanox.com> | 2018-06-11 14:16:14 +0300 |
|---|---|---|
| committer | Saeed Mahameed <saeedm@mellanox.com> | 2019-08-21 15:55:17 -0700 |
| commit | ac0d917632cf7fbbe953f2ec82c2c979ab1b4a06 (patch) | |
| tree | f093a0f2db36a7b420a35e9f80ff2e6ba627da6b /drivers/net/ethernet/mellanox/mlx5/core/en_rep.h | |
| parent | 70e83bd3b0e434ee9fa8e0010f76080aa4320725 (diff) | |
net/mlx5e: Protect neigh hash encap list with spinlock and rcu
Rcu-ify mlx5e_neigh_hash_entry->encap_list by changing operations on encap
list to their rcu counterparts and extending encap structure with rcu_head
to free the encap instances after rcu grace period. Use rcu read lock when
traversing encap list. Implement helper mlx5e_get_next_valid_encap()
function that is used by mlx5e_tc_update_neigh_used_value() to safely
iterate over valid entries of nhe->encap_list.
Signed-off-by: Vlad Buslov <vladbu@mellanox.com>
Reviewed-by: Jianbo Liu <jianbol@mellanox.com>
Reviewed-by: Roi Dayan <roid@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/en_rep.h')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/en_rep.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.h b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.h index 8fa27832bd81..a0ae5069d8c3 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.h @@ -119,6 +119,8 @@ struct mlx5e_neigh_hash_entry { */ struct list_head neigh_list; + /* protects encap list */ + spinlock_t encap_list_lock; /* encap list sharing the same neigh */ struct list_head encap_list; @@ -173,6 +175,7 @@ struct mlx5e_encap_entry { refcount_t refcnt; struct completion res_ready; int compl_result; + struct rcu_head rcu; }; struct mlx5e_rep_sq { |