1 /* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */ 2 /* Copyright (c) 2019, Mellanox Technologies */ 3 4 #ifndef _MLX5DR_H_ 5 #define _MLX5DR_H_ 6 7 struct mlx5dr_domain; 8 struct mlx5dr_table; 9 struct mlx5dr_matcher; 10 struct mlx5dr_rule; 11 struct mlx5dr_action; 12 13 enum mlx5dr_domain_type { 14 MLX5DR_DOMAIN_TYPE_NIC_RX, 15 MLX5DR_DOMAIN_TYPE_NIC_TX, 16 MLX5DR_DOMAIN_TYPE_FDB, 17 }; 18 19 enum mlx5dr_domain_sync_flags { 20 MLX5DR_DOMAIN_SYNC_FLAGS_SW = 1 << 0, 21 MLX5DR_DOMAIN_SYNC_FLAGS_HW = 1 << 1, 22 }; 23 24 enum mlx5dr_action_reformat_type { 25 DR_ACTION_REFORMAT_TYP_TNL_L2_TO_L2, 26 DR_ACTION_REFORMAT_TYP_L2_TO_TNL_L2, 27 DR_ACTION_REFORMAT_TYP_TNL_L3_TO_L2, 28 DR_ACTION_REFORMAT_TYP_L2_TO_TNL_L3, 29 DR_ACTION_REFORMAT_TYP_INSERT_HDR, 30 DR_ACTION_REFORMAT_TYP_REMOVE_HDR, 31 }; 32 33 struct mlx5dr_match_parameters { 34 size_t match_sz; 35 u64 *match_buf; /* Device spec format */ 36 }; 37 38 struct mlx5dr_action_dest { 39 struct mlx5dr_action *dest; 40 struct mlx5dr_action *reformat; 41 }; 42 43 struct mlx5dr_domain * 44 mlx5dr_domain_create(struct mlx5_core_dev *mdev, enum mlx5dr_domain_type type); 45 46 int mlx5dr_domain_destroy(struct mlx5dr_domain *domain); 47 48 int mlx5dr_domain_sync(struct mlx5dr_domain *domain, u32 flags); 49 50 void mlx5dr_domain_set_peer(struct mlx5dr_domain *dmn, 51 struct mlx5dr_domain *peer_dmn); 52 53 struct mlx5dr_table * 54 mlx5dr_table_create(struct mlx5dr_domain *domain, u32 level, u32 flags); 55 56 struct mlx5dr_table * 57 mlx5dr_table_get_from_fs_ft(struct mlx5_flow_table *ft); 58 59 int mlx5dr_table_destroy(struct mlx5dr_table *table); 60 61 u32 mlx5dr_table_get_id(struct mlx5dr_table *table); 62 63 struct mlx5dr_matcher * 64 mlx5dr_matcher_create(struct mlx5dr_table *table, 65 u32 priority, 66 u8 match_criteria_enable, 67 struct mlx5dr_match_parameters *mask); 68 69 int mlx5dr_matcher_destroy(struct mlx5dr_matcher *matcher); 70 71 struct mlx5dr_rule * 72 mlx5dr_rule_create(struct mlx5dr_matcher *matcher, 73 struct mlx5dr_match_parameters *value, 74 size_t num_actions, 75 struct mlx5dr_action *actions[], 76 u32 flow_source); 77 78 int mlx5dr_rule_destroy(struct mlx5dr_rule *rule); 79 80 int mlx5dr_table_set_miss_action(struct mlx5dr_table *tbl, 81 struct mlx5dr_action *action); 82 83 struct mlx5dr_action * 84 mlx5dr_action_create_dest_table_num(struct mlx5dr_domain *dmn, u32 table_num); 85 86 struct mlx5dr_action * 87 mlx5dr_action_create_dest_table(struct mlx5dr_table *table); 88 89 struct mlx5dr_action * 90 mlx5dr_action_create_dest_flow_fw_table(struct mlx5dr_domain *domain, 91 struct mlx5_flow_table *ft); 92 93 struct mlx5dr_action * 94 mlx5dr_action_create_dest_vport(struct mlx5dr_domain *domain, 95 u16 vport, u8 vhca_id_valid, 96 u16 vhca_id); 97 98 struct mlx5dr_action * 99 mlx5dr_action_create_mult_dest_tbl(struct mlx5dr_domain *dmn, 100 struct mlx5dr_action_dest *dests, 101 u32 num_of_dests, 102 bool ignore_flow_level); 103 104 struct mlx5dr_action *mlx5dr_action_create_drop(void); 105 106 struct mlx5dr_action *mlx5dr_action_create_tag(u32 tag_value); 107 108 struct mlx5dr_action * 109 mlx5dr_action_create_flow_sampler(struct mlx5dr_domain *dmn, u32 sampler_id); 110 111 struct mlx5dr_action * 112 mlx5dr_action_create_flow_counter(u32 counter_id); 113 114 struct mlx5dr_action * 115 mlx5dr_action_create_packet_reformat(struct mlx5dr_domain *dmn, 116 enum mlx5dr_action_reformat_type reformat_type, 117 u8 reformat_param_0, 118 u8 reformat_param_1, 119 size_t data_sz, 120 void *data); 121 122 struct mlx5dr_action * 123 mlx5dr_action_create_modify_header(struct mlx5dr_domain *domain, 124 u32 flags, 125 size_t actions_sz, 126 __be64 actions[]); 127 128 struct mlx5dr_action *mlx5dr_action_create_pop_vlan(void); 129 130 struct mlx5dr_action * 131 mlx5dr_action_create_push_vlan(struct mlx5dr_domain *domain, __be32 vlan_hdr); 132 133 int mlx5dr_action_destroy(struct mlx5dr_action *action); 134 135 static inline bool 136 mlx5dr_is_supported(struct mlx5_core_dev *dev) 137 { 138 return MLX5_CAP_GEN(dev, roce) && 139 (MLX5_CAP_ESW_FLOWTABLE_FDB(dev, sw_owner) || 140 (MLX5_CAP_ESW_FLOWTABLE_FDB(dev, sw_owner_v2) && 141 (MLX5_CAP_GEN(dev, steering_format_version) <= 142 MLX5_STEERING_FORMAT_CONNECTX_7))); 143 } 144 145 /* buddy functions & structure */ 146 147 struct mlx5dr_icm_mr; 148 149 struct mlx5dr_icm_buddy_mem { 150 unsigned long **bitmap; 151 unsigned int *num_free; 152 u32 max_order; 153 struct list_head list_node; 154 struct mlx5dr_icm_mr *icm_mr; 155 struct mlx5dr_icm_pool *pool; 156 157 /* This is the list of used chunks. HW may be accessing this memory */ 158 struct list_head used_list; 159 u64 used_memory; 160 161 /* Hardware may be accessing this memory but at some future, 162 * undetermined time, it might cease to do so. 163 * sync_ste command sets them free. 164 */ 165 struct list_head hot_list; 166 167 /* Memory optimisation */ 168 struct mlx5dr_ste *ste_arr; 169 struct list_head *miss_list; 170 u8 *hw_ste_arr; 171 }; 172 173 int mlx5dr_buddy_init(struct mlx5dr_icm_buddy_mem *buddy, 174 unsigned int max_order); 175 void mlx5dr_buddy_cleanup(struct mlx5dr_icm_buddy_mem *buddy); 176 int mlx5dr_buddy_alloc_mem(struct mlx5dr_icm_buddy_mem *buddy, 177 unsigned int order, 178 unsigned int *segment); 179 void mlx5dr_buddy_free_mem(struct mlx5dr_icm_buddy_mem *buddy, 180 unsigned int seg, unsigned int order); 181 182 #endif /* _MLX5DR_H_ */ 183