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| author | Maor Gottlieb | 2016-04-29 00:36:41 +0200 |
|---|---|---|
| committer | David S. Miller | 2016-04-29 22:29:11 +0200 |
| commit | 18c908e477dcc94ede69323a6b876b5d8cfb40ff (patch) | |
| tree | 37a6b1386c741dd3d3650a49173ffaecbdb98a80 /drivers/net/ethernet/mellanox/mlx5/core/en.h | |
| parent | net/mlx5e: Create aRFS flow tables (diff) | |
| download | kernel-qcow2-linux-18c908e477dcc94ede69323a6b876b5d8cfb40ff.tar.gz kernel-qcow2-linux-18c908e477dcc94ede69323a6b876b5d8cfb40ff.tar.xz kernel-qcow2-linux-18c908e477dcc94ede69323a6b876b5d8cfb40ff.zip | |
net/mlx5e: Add accelerated RFS support
Implement ndo_rx_flow_steer ndo.
A new flow steering rule will be composed from the
skb 4-tuple and added to the hardware aRFS flow table.
Each rule is stored in an internal hash table, if such
skb 4-tuple rule already exists we update the corresponding
hardware steering rule with the new destination.
For garbage collection rps_may_expire_flow will be
invoked for a limited amount of old rules upon any
ndo_rx_flow_steer invocation.
Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/en.h')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/en.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en.h b/drivers/net/ethernet/mellanox/mlx5/core/en.h index 999e05826490..21c38419ad89 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/en.h @@ -448,9 +448,12 @@ struct mlx5e_ttc_table { struct mlx5_flow_rule *rules[MLX5E_NUM_TT]; }; +#define ARFS_HASH_SHIFT BITS_PER_BYTE +#define ARFS_HASH_SIZE BIT(BITS_PER_BYTE) struct arfs_table { struct mlx5e_flow_table ft; struct mlx5_flow_rule *default_rule; + struct hlist_head rules_hash[ARFS_HASH_SIZE]; }; enum arfs_type { @@ -463,6 +466,11 @@ enum arfs_type { struct mlx5e_arfs_tables { struct arfs_table arfs_tables[ARFS_NUM_TYPES]; + /* Protect aRFS rules list */ + spinlock_t arfs_lock; + struct list_head rules; + int last_filter_id; + struct workqueue_struct *wq; }; /* NIC prio FTS */ @@ -685,6 +693,8 @@ static inline void mlx5e_arfs_destroy_tables(struct mlx5e_priv *priv) {} #else int mlx5e_arfs_create_tables(struct mlx5e_priv *priv); void mlx5e_arfs_destroy_tables(struct mlx5e_priv *priv); +int mlx5e_rx_flow_steer(struct net_device *dev, const struct sk_buff *skb, + u16 rxq_index, u32 flow_id); #endif u16 mlx5e_get_max_inline_cap(struct mlx5_core_dev *mdev); |