1 /* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */ 2 /* Copyright (c) 2018 Mellanox Technologies. */ 3 4 #ifndef __MLX5E_FLOW_STEER_H__ 5 #define __MLX5E_FLOW_STEER_H__ 6 7 enum { 8 MLX5E_TC_FT_LEVEL = 0, 9 MLX5E_TC_TTC_FT_LEVEL, 10 }; 11 12 struct mlx5e_tc_table { 13 struct mlx5_flow_table *t; 14 15 struct rhashtable ht; 16 17 DECLARE_HASHTABLE(mod_hdr_tbl, 8); 18 DECLARE_HASHTABLE(hairpin_tbl, 8); 19 20 struct notifier_block netdevice_nb; 21 }; 22 23 struct mlx5e_flow_table { 24 int num_groups; 25 struct mlx5_flow_table *t; 26 struct mlx5_flow_group **g; 27 }; 28 29 struct mlx5e_l2_rule { 30 u8 addr[ETH_ALEN + 2]; 31 struct mlx5_flow_handle *rule; 32 }; 33 34 #define MLX5E_L2_ADDR_HASH_SIZE BIT(BITS_PER_BYTE) 35 36 struct mlx5e_vlan_table { 37 struct mlx5e_flow_table ft; 38 DECLARE_BITMAP(active_cvlans, VLAN_N_VID); 39 DECLARE_BITMAP(active_svlans, VLAN_N_VID); 40 struct mlx5_flow_handle *active_cvlans_rule[VLAN_N_VID]; 41 struct mlx5_flow_handle *active_svlans_rule[VLAN_N_VID]; 42 struct mlx5_flow_handle *untagged_rule; 43 struct mlx5_flow_handle *any_cvlan_rule; 44 struct mlx5_flow_handle *any_svlan_rule; 45 bool cvlan_filter_disabled; 46 }; 47 48 struct mlx5e_l2_table { 49 struct mlx5e_flow_table ft; 50 struct hlist_head netdev_uc[MLX5E_L2_ADDR_HASH_SIZE]; 51 struct hlist_head netdev_mc[MLX5E_L2_ADDR_HASH_SIZE]; 52 struct mlx5e_l2_rule broadcast; 53 struct mlx5e_l2_rule allmulti; 54 struct mlx5e_l2_rule promisc; 55 bool broadcast_enabled; 56 bool allmulti_enabled; 57 bool promisc_enabled; 58 }; 59 60 enum mlx5e_traffic_types { 61 MLX5E_TT_IPV4_TCP, 62 MLX5E_TT_IPV6_TCP, 63 MLX5E_TT_IPV4_UDP, 64 MLX5E_TT_IPV6_UDP, 65 MLX5E_TT_IPV4_IPSEC_AH, 66 MLX5E_TT_IPV6_IPSEC_AH, 67 MLX5E_TT_IPV4_IPSEC_ESP, 68 MLX5E_TT_IPV6_IPSEC_ESP, 69 MLX5E_TT_IPV4, 70 MLX5E_TT_IPV6, 71 MLX5E_TT_ANY, 72 MLX5E_NUM_TT, 73 MLX5E_NUM_INDIR_TIRS = MLX5E_TT_ANY, 74 }; 75 76 struct mlx5e_tirc_config { 77 u8 l3_prot_type; 78 u8 l4_prot_type; 79 u32 rx_hash_fields; 80 }; 81 82 #define MLX5_HASH_IP (MLX5_HASH_FIELD_SEL_SRC_IP |\ 83 MLX5_HASH_FIELD_SEL_DST_IP) 84 #define MLX5_HASH_IP_L4PORTS (MLX5_HASH_FIELD_SEL_SRC_IP |\ 85 MLX5_HASH_FIELD_SEL_DST_IP |\ 86 MLX5_HASH_FIELD_SEL_L4_SPORT |\ 87 MLX5_HASH_FIELD_SEL_L4_DPORT) 88 #define MLX5_HASH_IP_IPSEC_SPI (MLX5_HASH_FIELD_SEL_SRC_IP |\ 89 MLX5_HASH_FIELD_SEL_DST_IP |\ 90 MLX5_HASH_FIELD_SEL_IPSEC_SPI) 91 92 enum mlx5e_tunnel_types { 93 MLX5E_TT_IPV4_GRE, 94 MLX5E_TT_IPV6_GRE, 95 MLX5E_NUM_TUNNEL_TT, 96 }; 97 98 /* L3/L4 traffic type classifier */ 99 struct mlx5e_ttc_table { 100 struct mlx5e_flow_table ft; 101 struct mlx5_flow_handle *rules[MLX5E_NUM_TT]; 102 struct mlx5_flow_handle *tunnel_rules[MLX5E_NUM_TUNNEL_TT]; 103 }; 104 105 /* NIC prio FTS */ 106 enum { 107 MLX5E_VLAN_FT_LEVEL = 0, 108 MLX5E_L2_FT_LEVEL, 109 MLX5E_TTC_FT_LEVEL, 110 MLX5E_INNER_TTC_FT_LEVEL, 111 #ifdef CONFIG_MLX5_EN_ARFS 112 MLX5E_ARFS_FT_LEVEL 113 #endif 114 }; 115 116 #ifdef CONFIG_MLX5_EN_RXNFC 117 118 struct mlx5e_ethtool_table { 119 struct mlx5_flow_table *ft; 120 int num_rules; 121 }; 122 123 #define ETHTOOL_NUM_L3_L4_FTS 7 124 #define ETHTOOL_NUM_L2_FTS 4 125 126 struct mlx5e_ethtool_steering { 127 struct mlx5e_ethtool_table l3_l4_ft[ETHTOOL_NUM_L3_L4_FTS]; 128 struct mlx5e_ethtool_table l2_ft[ETHTOOL_NUM_L2_FTS]; 129 struct list_head rules; 130 int tot_num_rules; 131 }; 132 133 void mlx5e_ethtool_init_steering(struct mlx5e_priv *priv); 134 void mlx5e_ethtool_cleanup_steering(struct mlx5e_priv *priv); 135 int mlx5e_set_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd); 136 int mlx5e_get_rxnfc(struct net_device *dev, 137 struct ethtool_rxnfc *info, u32 *rule_locs); 138 #else 139 static inline void mlx5e_ethtool_init_steering(struct mlx5e_priv *priv) { } 140 static inline void mlx5e_ethtool_cleanup_steering(struct mlx5e_priv *priv) { } 141 #endif /* CONFIG_MLX5_EN_RXNFC */ 142 143 #ifdef CONFIG_MLX5_EN_ARFS 144 #define ARFS_HASH_SHIFT BITS_PER_BYTE 145 #define ARFS_HASH_SIZE BIT(BITS_PER_BYTE) 146 147 struct arfs_table { 148 struct mlx5e_flow_table ft; 149 struct mlx5_flow_handle *default_rule; 150 struct hlist_head rules_hash[ARFS_HASH_SIZE]; 151 }; 152 153 enum arfs_type { 154 ARFS_IPV4_TCP, 155 ARFS_IPV6_TCP, 156 ARFS_IPV4_UDP, 157 ARFS_IPV6_UDP, 158 ARFS_NUM_TYPES, 159 }; 160 161 struct mlx5e_arfs_tables { 162 struct arfs_table arfs_tables[ARFS_NUM_TYPES]; 163 /* Protect aRFS rules list */ 164 spinlock_t arfs_lock; 165 struct list_head rules; 166 int last_filter_id; 167 struct workqueue_struct *wq; 168 }; 169 170 int mlx5e_arfs_create_tables(struct mlx5e_priv *priv); 171 void mlx5e_arfs_destroy_tables(struct mlx5e_priv *priv); 172 int mlx5e_arfs_enable(struct mlx5e_priv *priv); 173 int mlx5e_arfs_disable(struct mlx5e_priv *priv); 174 int mlx5e_rx_flow_steer(struct net_device *dev, const struct sk_buff *skb, 175 u16 rxq_index, u32 flow_id); 176 #else 177 static inline int mlx5e_arfs_create_tables(struct mlx5e_priv *priv) { return 0; } 178 static inline void mlx5e_arfs_destroy_tables(struct mlx5e_priv *priv) {} 179 static inline int mlx5e_arfs_enable(struct mlx5e_priv *priv) { return -EOPNOTSUPP; } 180 static inline int mlx5e_arfs_disable(struct mlx5e_priv *priv) { return -EOPNOTSUPP; } 181 #endif 182 183 struct mlx5e_flow_steering { 184 struct mlx5_flow_namespace *ns; 185 #ifdef CONFIG_MLX5_EN_RXNFC 186 struct mlx5e_ethtool_steering ethtool; 187 #endif 188 struct mlx5e_tc_table tc; 189 struct mlx5e_vlan_table vlan; 190 struct mlx5e_l2_table l2; 191 struct mlx5e_ttc_table ttc; 192 struct mlx5e_ttc_table inner_ttc; 193 #ifdef CONFIG_MLX5_EN_ARFS 194 struct mlx5e_arfs_tables arfs; 195 #endif 196 }; 197 198 struct ttc_params { 199 struct mlx5_flow_table_attr ft_attr; 200 u32 any_tt_tirn; 201 u32 indir_tirn[MLX5E_NUM_INDIR_TIRS]; 202 struct mlx5e_ttc_table *inner_ttc; 203 }; 204 205 void mlx5e_set_ttc_basic_params(struct mlx5e_priv *priv, struct ttc_params *ttc_params); 206 void mlx5e_set_ttc_ft_params(struct ttc_params *ttc_params); 207 void mlx5e_set_inner_ttc_ft_params(struct ttc_params *ttc_params); 208 209 int mlx5e_create_ttc_table(struct mlx5e_priv *priv, struct ttc_params *params, 210 struct mlx5e_ttc_table *ttc); 211 void mlx5e_destroy_ttc_table(struct mlx5e_priv *priv, 212 struct mlx5e_ttc_table *ttc); 213 214 int mlx5e_create_inner_ttc_table(struct mlx5e_priv *priv, struct ttc_params *params, 215 struct mlx5e_ttc_table *ttc); 216 void mlx5e_destroy_inner_ttc_table(struct mlx5e_priv *priv, 217 struct mlx5e_ttc_table *ttc); 218 219 void mlx5e_destroy_flow_table(struct mlx5e_flow_table *ft); 220 221 void mlx5e_enable_cvlan_filter(struct mlx5e_priv *priv); 222 void mlx5e_disable_cvlan_filter(struct mlx5e_priv *priv); 223 224 int mlx5e_create_flow_steering(struct mlx5e_priv *priv); 225 void mlx5e_destroy_flow_steering(struct mlx5e_priv *priv); 226 227 #endif /* __MLX5E_FLOW_STEER_H__ */ 228 229