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