/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
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/* Copyright (c) 2018 Mellanox Technologies. */
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#ifndef __MLX5E_FLOW_STEER_H__
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#define __MLX5E_FLOW_STEER_H__
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#include "mod_hdr.h"
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enum {
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MLX5E_TC_FT_LEVEL = 0,
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MLX5E_TC_TTC_FT_LEVEL,
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};
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struct mlx5e_tc_table {
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/* Protects the dynamic assignment of the t parameter
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* which is the nic tc root table.
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*/
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struct mutex t_lock;
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struct mlx5_flow_table *t;
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struct mlx5_fs_chains *chains;
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struct rhashtable ht;
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struct mod_hdr_tbl mod_hdr;
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struct mutex hairpin_tbl_lock; /* protects hairpin_tbl */
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DECLARE_HASHTABLE(hairpin_tbl, 8);
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struct notifier_block netdevice_nb;
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struct netdev_net_notifier netdevice_nn;
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struct mlx5_tc_ct_priv *ct;
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};
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struct mlx5e_flow_table {
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int num_groups;
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struct mlx5_flow_table *t;
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struct mlx5_flow_group **g;
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};
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struct mlx5e_l2_rule {
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u8 addr[ETH_ALEN + 2];
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struct mlx5_flow_handle *rule;
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};
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#define MLX5E_L2_ADDR_HASH_SIZE BIT(BITS_PER_BYTE)
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struct mlx5e_vlan_table {
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struct mlx5e_flow_table ft;
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DECLARE_BITMAP(active_cvlans, VLAN_N_VID);
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DECLARE_BITMAP(active_svlans, VLAN_N_VID);
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struct mlx5_flow_handle *active_cvlans_rule[VLAN_N_VID];
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struct mlx5_flow_handle *active_svlans_rule[VLAN_N_VID];
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struct mlx5_flow_handle *untagged_rule;
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struct mlx5_flow_handle *any_cvlan_rule;
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struct mlx5_flow_handle *any_svlan_rule;
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bool cvlan_filter_disabled;
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};
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struct mlx5e_l2_table {
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struct mlx5e_flow_table ft;
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struct hlist_head netdev_uc[MLX5E_L2_ADDR_HASH_SIZE];
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struct hlist_head netdev_mc[MLX5E_L2_ADDR_HASH_SIZE];
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struct mlx5e_l2_rule broadcast;
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struct mlx5e_l2_rule allmulti;
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struct mlx5e_l2_rule promisc;
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bool broadcast_enabled;
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bool allmulti_enabled;
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bool promisc_enabled;
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};
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enum mlx5e_traffic_types {
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MLX5E_TT_IPV4_TCP,
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MLX5E_TT_IPV6_TCP,
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MLX5E_TT_IPV4_UDP,
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MLX5E_TT_IPV6_UDP,
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MLX5E_TT_IPV4_IPSEC_AH,
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MLX5E_TT_IPV6_IPSEC_AH,
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MLX5E_TT_IPV4_IPSEC_ESP,
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MLX5E_TT_IPV6_IPSEC_ESP,
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MLX5E_TT_IPV4,
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MLX5E_TT_IPV6,
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MLX5E_TT_ANY,
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MLX5E_NUM_TT,
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MLX5E_NUM_INDIR_TIRS = MLX5E_TT_ANY,
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};
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struct mlx5e_tirc_config {
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u8 l3_prot_type;
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u8 l4_prot_type;
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u32 rx_hash_fields;
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};
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#define MLX5_HASH_IP (MLX5_HASH_FIELD_SEL_SRC_IP |\
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MLX5_HASH_FIELD_SEL_DST_IP)
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#define MLX5_HASH_IP_L4PORTS (MLX5_HASH_FIELD_SEL_SRC_IP |\
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MLX5_HASH_FIELD_SEL_DST_IP |\
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MLX5_HASH_FIELD_SEL_L4_SPORT |\
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MLX5_HASH_FIELD_SEL_L4_DPORT)
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#define MLX5_HASH_IP_IPSEC_SPI (MLX5_HASH_FIELD_SEL_SRC_IP |\
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MLX5_HASH_FIELD_SEL_DST_IP |\
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MLX5_HASH_FIELD_SEL_IPSEC_SPI)
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enum mlx5e_tunnel_types {
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MLX5E_TT_IPV4_GRE,
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MLX5E_TT_IPV6_GRE,
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MLX5E_TT_IPV4_IPIP,
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MLX5E_TT_IPV6_IPIP,
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MLX5E_TT_IPV4_IPV6,
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MLX5E_TT_IPV6_IPV6,
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MLX5E_NUM_TUNNEL_TT,
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};
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bool mlx5e_tunnel_inner_ft_supported(struct mlx5_core_dev *mdev);
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struct mlx5e_ttc_rule {
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struct mlx5_flow_handle *rule;
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struct mlx5_flow_destination default_dest;
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};
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/* L3/L4 traffic type classifier */
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struct mlx5e_ttc_table {
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struct mlx5e_flow_table ft;
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struct mlx5e_ttc_rule rules[MLX5E_NUM_TT];
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struct mlx5_flow_handle *tunnel_rules[MLX5E_NUM_TUNNEL_TT];
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};
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/* NIC prio FTS */
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enum {
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MLX5E_VLAN_FT_LEVEL = 0,
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MLX5E_L2_FT_LEVEL,
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MLX5E_TTC_FT_LEVEL,
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MLX5E_INNER_TTC_FT_LEVEL,
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#ifdef CONFIG_MLX5_EN_TLS
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MLX5E_ACCEL_FS_TCP_FT_LEVEL,
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#endif
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#ifdef CONFIG_MLX5_EN_ARFS
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MLX5E_ARFS_FT_LEVEL,
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#endif
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#ifdef CONFIG_MLX5_EN_IPSEC
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MLX5E_ACCEL_FS_ESP_FT_LEVEL = MLX5E_INNER_TTC_FT_LEVEL + 1,
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MLX5E_ACCEL_FS_ESP_FT_ERR_LEVEL,
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#endif
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};
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#define MLX5E_TTC_NUM_GROUPS 3
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#define MLX5E_TTC_GROUP1_SIZE (BIT(3) + MLX5E_NUM_TUNNEL_TT)
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#define MLX5E_TTC_GROUP2_SIZE BIT(1)
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#define MLX5E_TTC_GROUP3_SIZE BIT(0)
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#define MLX5E_TTC_TABLE_SIZE (MLX5E_TTC_GROUP1_SIZE +\
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MLX5E_TTC_GROUP2_SIZE +\
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MLX5E_TTC_GROUP3_SIZE)
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#define MLX5E_INNER_TTC_NUM_GROUPS 3
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#define MLX5E_INNER_TTC_GROUP1_SIZE BIT(3)
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#define MLX5E_INNER_TTC_GROUP2_SIZE BIT(1)
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#define MLX5E_INNER_TTC_GROUP3_SIZE BIT(0)
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#define MLX5E_INNER_TTC_TABLE_SIZE (MLX5E_INNER_TTC_GROUP1_SIZE +\
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MLX5E_INNER_TTC_GROUP2_SIZE +\
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MLX5E_INNER_TTC_GROUP3_SIZE)
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#ifdef CONFIG_MLX5_EN_RXNFC
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struct mlx5e_ethtool_table {
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struct mlx5_flow_table *ft;
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int num_rules;
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};
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#define ETHTOOL_NUM_L3_L4_FTS 7
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#define ETHTOOL_NUM_L2_FTS 4
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struct mlx5e_ethtool_steering {
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struct mlx5e_ethtool_table l3_l4_ft[ETHTOOL_NUM_L3_L4_FTS];
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struct mlx5e_ethtool_table l2_ft[ETHTOOL_NUM_L2_FTS];
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struct list_head rules;
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int tot_num_rules;
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};
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void mlx5e_ethtool_init_steering(struct mlx5e_priv *priv);
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void mlx5e_ethtool_cleanup_steering(struct mlx5e_priv *priv);
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int mlx5e_ethtool_set_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd);
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int mlx5e_ethtool_get_rxnfc(struct net_device *dev,
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struct ethtool_rxnfc *info, u32 *rule_locs);
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#else
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static inline void mlx5e_ethtool_init_steering(struct mlx5e_priv *priv) { }
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static inline void mlx5e_ethtool_cleanup_steering(struct mlx5e_priv *priv) { }
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static inline int mlx5e_ethtool_set_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd)
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{ return -EOPNOTSUPP; }
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static inline int mlx5e_ethtool_get_rxnfc(struct net_device *dev,
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struct ethtool_rxnfc *info, u32 *rule_locs)
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{ return -EOPNOTSUPP; }
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#endif /* CONFIG_MLX5_EN_RXNFC */
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#ifdef CONFIG_MLX5_EN_ARFS
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#define ARFS_HASH_SHIFT BITS_PER_BYTE
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#define ARFS_HASH_SIZE BIT(BITS_PER_BYTE)
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struct arfs_table {
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struct mlx5e_flow_table ft;
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struct mlx5_flow_handle *default_rule;
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struct hlist_head rules_hash[ARFS_HASH_SIZE];
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};
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enum arfs_type {
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ARFS_IPV4_TCP,
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ARFS_IPV6_TCP,
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ARFS_IPV4_UDP,
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ARFS_IPV6_UDP,
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ARFS_NUM_TYPES,
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};
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struct mlx5e_arfs_tables {
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struct arfs_table arfs_tables[ARFS_NUM_TYPES];
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/* Protect aRFS rules list */
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spinlock_t arfs_lock;
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struct list_head rules;
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int last_filter_id;
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struct workqueue_struct *wq;
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};
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int mlx5e_arfs_create_tables(struct mlx5e_priv *priv);
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void mlx5e_arfs_destroy_tables(struct mlx5e_priv *priv);
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int mlx5e_arfs_enable(struct mlx5e_priv *priv);
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int mlx5e_arfs_disable(struct mlx5e_priv *priv);
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int mlx5e_rx_flow_steer(struct net_device *dev, const struct sk_buff *skb,
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u16 rxq_index, u32 flow_id);
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#else
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static inline int mlx5e_arfs_create_tables(struct mlx5e_priv *priv) { return 0; }
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static inline void mlx5e_arfs_destroy_tables(struct mlx5e_priv *priv) {}
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static inline int mlx5e_arfs_enable(struct mlx5e_priv *priv) { return -EOPNOTSUPP; }
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static inline int mlx5e_arfs_disable(struct mlx5e_priv *priv) { return -EOPNOTSUPP; }
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#endif
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#ifdef CONFIG_MLX5_EN_TLS
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struct mlx5e_accel_fs_tcp;
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#endif
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struct mlx5e_flow_steering {
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struct mlx5_flow_namespace *ns;
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struct mlx5_flow_namespace *egress_ns;
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#ifdef CONFIG_MLX5_EN_RXNFC
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struct mlx5e_ethtool_steering ethtool;
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#endif
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struct mlx5e_tc_table tc;
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struct mlx5e_vlan_table vlan;
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struct mlx5e_l2_table l2;
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struct mlx5e_ttc_table ttc;
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struct mlx5e_ttc_table inner_ttc;
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#ifdef CONFIG_MLX5_EN_ARFS
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struct mlx5e_arfs_tables arfs;
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#endif
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#ifdef CONFIG_MLX5_EN_TLS
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struct mlx5e_accel_fs_tcp *accel_tcp;
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#endif
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};
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struct ttc_params {
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struct mlx5_flow_table_attr ft_attr;
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u32 any_tt_tirn;
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u32 indir_tirn[MLX5E_NUM_INDIR_TIRS];
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struct mlx5e_ttc_table *inner_ttc;
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};
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void mlx5e_set_ttc_basic_params(struct mlx5e_priv *priv, struct ttc_params *ttc_params);
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void mlx5e_set_ttc_ft_params(struct ttc_params *ttc_params);
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int mlx5e_create_ttc_table(struct mlx5e_priv *priv, struct ttc_params *params,
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struct mlx5e_ttc_table *ttc);
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void mlx5e_destroy_ttc_table(struct mlx5e_priv *priv,
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struct mlx5e_ttc_table *ttc);
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void mlx5e_destroy_flow_table(struct mlx5e_flow_table *ft);
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int mlx5e_ttc_fwd_dest(struct mlx5e_priv *priv, enum mlx5e_traffic_types type,
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struct mlx5_flow_destination *new_dest);
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struct mlx5_flow_destination
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mlx5e_ttc_get_default_dest(struct mlx5e_priv *priv, enum mlx5e_traffic_types type);
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int mlx5e_ttc_fwd_default_dest(struct mlx5e_priv *priv, enum mlx5e_traffic_types type);
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void mlx5e_enable_cvlan_filter(struct mlx5e_priv *priv);
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void mlx5e_disable_cvlan_filter(struct mlx5e_priv *priv);
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int mlx5e_create_flow_steering(struct mlx5e_priv *priv);
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void mlx5e_destroy_flow_steering(struct mlx5e_priv *priv);
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bool mlx5e_tunnel_proto_supported(struct mlx5_core_dev *mdev, u8 proto_type);
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bool mlx5e_any_tunnel_proto_supported(struct mlx5_core_dev *mdev);
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#endif /* __MLX5E_FLOW_STEER_H__ */
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