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net/mlx5: Add sniffer namespaces
Add sniffer TX and RX namespaces to receive ingoing and outgoing traffic. Each outgoing/incoming packet is duplicated and steered to the sniffer TX/RX namespace in addition to the regular flow. Signed-off-by: Maor Gottlieb <maorg@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org>
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3 changed files with 64 additions and 0 deletions
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@ -1427,6 +1427,16 @@ struct mlx5_flow_namespace *mlx5_get_flow_namespace(struct mlx5_core_dev *dev,
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return &steering->esw_ingress_root_ns->ns;
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else
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return NULL;
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case MLX5_FLOW_NAMESPACE_SNIFFER_RX:
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if (steering->sniffer_rx_root_ns)
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return &steering->sniffer_rx_root_ns->ns;
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else
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return NULL;
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case MLX5_FLOW_NAMESPACE_SNIFFER_TX:
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if (steering->sniffer_tx_root_ns)
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return &steering->sniffer_tx_root_ns->ns;
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else
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return NULL;
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default:
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return NULL;
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}
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@ -1726,10 +1736,46 @@ void mlx5_cleanup_fs(struct mlx5_core_dev *dev)
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cleanup_root_ns(steering->esw_egress_root_ns);
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cleanup_root_ns(steering->esw_ingress_root_ns);
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cleanup_root_ns(steering->fdb_root_ns);
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cleanup_root_ns(steering->sniffer_rx_root_ns);
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cleanup_root_ns(steering->sniffer_tx_root_ns);
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mlx5_cleanup_fc_stats(dev);
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kfree(steering);
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}
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static int init_sniffer_tx_root_ns(struct mlx5_flow_steering *steering)
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{
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struct fs_prio *prio;
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steering->sniffer_tx_root_ns = create_root_ns(steering, FS_FT_SNIFFER_TX);
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if (!steering->sniffer_tx_root_ns)
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return -ENOMEM;
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/* Create single prio */
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prio = fs_create_prio(&steering->sniffer_tx_root_ns->ns, 0, 1);
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if (IS_ERR(prio)) {
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cleanup_root_ns(steering->sniffer_tx_root_ns);
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return PTR_ERR(prio);
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}
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return 0;
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}
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static int init_sniffer_rx_root_ns(struct mlx5_flow_steering *steering)
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{
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struct fs_prio *prio;
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steering->sniffer_rx_root_ns = create_root_ns(steering, FS_FT_SNIFFER_RX);
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if (!steering->sniffer_rx_root_ns)
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return -ENOMEM;
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/* Create single prio */
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prio = fs_create_prio(&steering->sniffer_rx_root_ns->ns, 0, 1);
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if (IS_ERR(prio)) {
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cleanup_root_ns(steering->sniffer_rx_root_ns);
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return PTR_ERR(prio);
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}
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return 0;
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}
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static int init_fdb_root_ns(struct mlx5_flow_steering *steering)
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{
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struct fs_prio *prio;
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@ -1826,6 +1872,18 @@ int mlx5_init_fs(struct mlx5_core_dev *dev)
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}
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}
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if (MLX5_CAP_FLOWTABLE_SNIFFER_RX(dev, ft_support)) {
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err = init_sniffer_rx_root_ns(steering);
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if (err)
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goto err;
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}
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if (MLX5_CAP_FLOWTABLE_SNIFFER_TX(dev, ft_support)) {
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err = init_sniffer_tx_root_ns(steering);
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if (err)
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goto err;
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}
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return 0;
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err:
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mlx5_cleanup_fs(dev);
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@ -49,6 +49,8 @@ enum fs_flow_table_type {
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FS_FT_ESW_EGRESS_ACL = 0x2,
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FS_FT_ESW_INGRESS_ACL = 0x3,
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FS_FT_FDB = 0X4,
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FS_FT_SNIFFER_RX = 0X5,
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FS_FT_SNIFFER_TX = 0X6,
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};
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enum fs_flow_table_op_mod {
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@ -66,6 +68,8 @@ struct mlx5_flow_steering {
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struct mlx5_flow_root_namespace *fdb_root_ns;
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struct mlx5_flow_root_namespace *esw_egress_root_ns;
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struct mlx5_flow_root_namespace *esw_ingress_root_ns;
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struct mlx5_flow_root_namespace *sniffer_tx_root_ns;
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struct mlx5_flow_root_namespace *sniffer_rx_root_ns;
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};
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struct fs_node {
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@ -63,6 +63,8 @@ enum mlx5_flow_namespace_type {
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MLX5_FLOW_NAMESPACE_FDB,
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MLX5_FLOW_NAMESPACE_ESW_EGRESS,
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MLX5_FLOW_NAMESPACE_ESW_INGRESS,
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MLX5_FLOW_NAMESPACE_SNIFFER_RX,
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MLX5_FLOW_NAMESPACE_SNIFFER_TX,
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};
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struct mlx5_flow_table;
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