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 }; 30 31 struct mlx5dr_match_parameters { 32 size_t match_sz; 33 u64 *match_buf; /* Device spec format */ 34 }; 35 36 struct mlx5dr_action_dest { 37 struct mlx5dr_action *dest; 38 struct mlx5dr_action *reformat; 39 }; 40 41 struct mlx5dr_domain * 42 mlx5dr_domain_create(struct mlx5_core_dev *mdev, enum mlx5dr_domain_type type); 43 44 int mlx5dr_domain_destroy(struct mlx5dr_domain *domain); 45 46 int mlx5dr_domain_sync(struct mlx5dr_domain *domain, u32 flags); 47 48 void mlx5dr_domain_set_peer(struct mlx5dr_domain *dmn, 49 struct mlx5dr_domain *peer_dmn); 50 51 struct mlx5dr_table * 52 mlx5dr_table_create(struct mlx5dr_domain *domain, u32 level, u32 flags); 53 54 int mlx5dr_table_destroy(struct mlx5dr_table *table); 55 56 u32 mlx5dr_table_get_id(struct mlx5dr_table *table); 57 58 struct mlx5dr_matcher * 59 mlx5dr_matcher_create(struct mlx5dr_table *table, 60 u32 priority, 61 u8 match_criteria_enable, 62 struct mlx5dr_match_parameters *mask); 63 64 int mlx5dr_matcher_destroy(struct mlx5dr_matcher *matcher); 65 66 struct mlx5dr_rule * 67 mlx5dr_rule_create(struct mlx5dr_matcher *matcher, 68 struct mlx5dr_match_parameters *value, 69 size_t num_actions, 70 struct mlx5dr_action *actions[], 71 u32 flow_source); 72 73 int mlx5dr_rule_destroy(struct mlx5dr_rule *rule); 74 75 int mlx5dr_table_set_miss_action(struct mlx5dr_table *tbl, 76 struct mlx5dr_action *action); 77 78 struct mlx5dr_action * 79 mlx5dr_action_create_dest_table_num(struct mlx5dr_domain *dmn, u32 table_num); 80 81 struct mlx5dr_action * 82 mlx5dr_action_create_dest_table(struct mlx5dr_table *table); 83 84 struct mlx5dr_action * 85 mlx5dr_action_create_dest_flow_fw_table(struct mlx5dr_domain *domain, 86 struct mlx5_flow_table *ft); 87 88 struct mlx5dr_action * 89 mlx5dr_action_create_dest_vport(struct mlx5dr_domain *domain, 90 u32 vport, u8 vhca_id_valid, 91 u16 vhca_id); 92 93 struct mlx5dr_action * 94 mlx5dr_action_create_mult_dest_tbl(struct mlx5dr_domain *dmn, 95 struct mlx5dr_action_dest *dests, 96 u32 num_of_dests); 97 98 struct mlx5dr_action *mlx5dr_action_create_drop(void); 99 100 struct mlx5dr_action *mlx5dr_action_create_tag(u32 tag_value); 101 102 struct mlx5dr_action * 103 mlx5dr_action_create_flow_counter(u32 counter_id); 104 105 struct mlx5dr_action * 106 mlx5dr_action_create_packet_reformat(struct mlx5dr_domain *dmn, 107 enum mlx5dr_action_reformat_type reformat_type, 108 size_t data_sz, 109 void *data); 110 111 struct mlx5dr_action * 112 mlx5dr_action_create_modify_header(struct mlx5dr_domain *domain, 113 u32 flags, 114 size_t actions_sz, 115 __be64 actions[]); 116 117 struct mlx5dr_action *mlx5dr_action_create_pop_vlan(void); 118 119 struct mlx5dr_action * 120 mlx5dr_action_create_push_vlan(struct mlx5dr_domain *domain, __be32 vlan_hdr); 121 122 int mlx5dr_action_destroy(struct mlx5dr_action *action); 123 124 static inline bool 125 mlx5dr_is_supported(struct mlx5_core_dev *dev) 126 { 127 return MLX5_CAP_ESW_FLOWTABLE_FDB(dev, sw_owner) || 128 (MLX5_CAP_ESW_FLOWTABLE_FDB(dev, sw_owner_v2) && 129 (MLX5_CAP_GEN(dev, steering_format_version) <= 130 MLX5_STEERING_FORMAT_CONNECTX_6DX)); 131 } 132 133 /* buddy functions & structure */ 134 135 struct mlx5dr_icm_mr; 136 137 struct mlx5dr_icm_buddy_mem { 138 unsigned long **bitmap; 139 unsigned int *num_free; 140 u32 max_order; 141 struct list_head list_node; 142 struct mlx5dr_icm_mr *icm_mr; 143 struct mlx5dr_icm_pool *pool; 144 145 /* This is the list of used chunks. HW may be accessing this memory */ 146 struct list_head used_list; 147 u64 used_memory; 148 149 /* Hardware may be accessing this memory but at some future, 150 * undetermined time, it might cease to do so. 151 * sync_ste command sets them free. 152 */ 153 struct list_head hot_list; 154 }; 155 156 int mlx5dr_buddy_init(struct mlx5dr_icm_buddy_mem *buddy, 157 unsigned int max_order); 158 void mlx5dr_buddy_cleanup(struct mlx5dr_icm_buddy_mem *buddy); 159 int mlx5dr_buddy_alloc_mem(struct mlx5dr_icm_buddy_mem *buddy, 160 unsigned int order, 161 unsigned int *segment); 162 void mlx5dr_buddy_free_mem(struct mlx5dr_icm_buddy_mem *buddy, 163 unsigned int seg, unsigned int order); 164 165 #endif /* _MLX5DR_H_ */ 166