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 int mlx5dr_table_destroy(struct mlx5dr_table *table); 57 58 u32 mlx5dr_table_get_id(struct mlx5dr_table *table); 59 60 struct mlx5dr_matcher * 61 mlx5dr_matcher_create(struct mlx5dr_table *table, 62 u32 priority, 63 u8 match_criteria_enable, 64 struct mlx5dr_match_parameters *mask); 65 66 int mlx5dr_matcher_destroy(struct mlx5dr_matcher *matcher); 67 68 struct mlx5dr_rule * 69 mlx5dr_rule_create(struct mlx5dr_matcher *matcher, 70 struct mlx5dr_match_parameters *value, 71 size_t num_actions, 72 struct mlx5dr_action *actions[], 73 u32 flow_source); 74 75 int mlx5dr_rule_destroy(struct mlx5dr_rule *rule); 76 77 int mlx5dr_table_set_miss_action(struct mlx5dr_table *tbl, 78 struct mlx5dr_action *action); 79 80 struct mlx5dr_action * 81 mlx5dr_action_create_dest_table_num(struct mlx5dr_domain *dmn, u32 table_num); 82 83 struct mlx5dr_action * 84 mlx5dr_action_create_dest_table(struct mlx5dr_table *table); 85 86 struct mlx5dr_action * 87 mlx5dr_action_create_dest_flow_fw_table(struct mlx5dr_domain *domain, 88 struct mlx5_flow_table *ft); 89 90 struct mlx5dr_action * 91 mlx5dr_action_create_dest_vport(struct mlx5dr_domain *domain, 92 u16 vport, u8 vhca_id_valid, 93 u16 vhca_id); 94 95 struct mlx5dr_action * 96 mlx5dr_action_create_mult_dest_tbl(struct mlx5dr_domain *dmn, 97 struct mlx5dr_action_dest *dests, 98 u32 num_of_dests, 99 bool ignore_flow_level); 100 101 struct mlx5dr_action *mlx5dr_action_create_drop(void); 102 103 struct mlx5dr_action *mlx5dr_action_create_tag(u32 tag_value); 104 105 struct mlx5dr_action * 106 mlx5dr_action_create_flow_sampler(struct mlx5dr_domain *dmn, u32 sampler_id); 107 108 struct mlx5dr_action * 109 mlx5dr_action_create_flow_counter(u32 counter_id); 110 111 struct mlx5dr_action * 112 mlx5dr_action_create_packet_reformat(struct mlx5dr_domain *dmn, 113 enum mlx5dr_action_reformat_type reformat_type, 114 u8 reformat_param_0, 115 u8 reformat_param_1, 116 size_t data_sz, 117 void *data); 118 119 struct mlx5dr_action * 120 mlx5dr_action_create_modify_header(struct mlx5dr_domain *domain, 121 u32 flags, 122 size_t actions_sz, 123 __be64 actions[]); 124 125 struct mlx5dr_action *mlx5dr_action_create_pop_vlan(void); 126 127 struct mlx5dr_action * 128 mlx5dr_action_create_push_vlan(struct mlx5dr_domain *domain, __be32 vlan_hdr); 129 130 int mlx5dr_action_destroy(struct mlx5dr_action *action); 131 132 static inline bool 133 mlx5dr_is_supported(struct mlx5_core_dev *dev) 134 { 135 return MLX5_CAP_GEN(dev, roce) && 136 (MLX5_CAP_ESW_FLOWTABLE_FDB(dev, sw_owner) || 137 (MLX5_CAP_ESW_FLOWTABLE_FDB(dev, sw_owner_v2) && 138 (MLX5_CAP_GEN(dev, steering_format_version) <= 139 MLX5_STEERING_FORMAT_CONNECTX_6DX))); 140 } 141 142 /* buddy functions & structure */ 143 144 struct mlx5dr_icm_mr; 145 146 struct mlx5dr_icm_buddy_mem { 147 unsigned long **bitmap; 148 unsigned int *num_free; 149 u32 max_order; 150 struct list_head list_node; 151 struct mlx5dr_icm_mr *icm_mr; 152 struct mlx5dr_icm_pool *pool; 153 154 /* This is the list of used chunks. HW may be accessing this memory */ 155 struct list_head used_list; 156 u64 used_memory; 157 158 /* Hardware may be accessing this memory but at some future, 159 * undetermined time, it might cease to do so. 160 * sync_ste command sets them free. 161 */ 162 struct list_head hot_list; 163 }; 164 165 int mlx5dr_buddy_init(struct mlx5dr_icm_buddy_mem *buddy, 166 unsigned int max_order); 167 void mlx5dr_buddy_cleanup(struct mlx5dr_icm_buddy_mem *buddy); 168 int mlx5dr_buddy_alloc_mem(struct mlx5dr_icm_buddy_mem *buddy, 169 unsigned int order, 170 unsigned int *segment); 171 void mlx5dr_buddy_free_mem(struct mlx5dr_icm_buddy_mem *buddy, 172 unsigned int seg, unsigned int order); 173 174 #endif /* _MLX5DR_H_ */ 175