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 }; 31 32 struct mlx5dr_match_parameters { 33 size_t match_sz; 34 u64 *match_buf; /* Device spec format */ 35 }; 36 37 struct mlx5dr_action_dest { 38 struct mlx5dr_action *dest; 39 struct mlx5dr_action *reformat; 40 }; 41 42 struct mlx5dr_domain * 43 mlx5dr_domain_create(struct mlx5_core_dev *mdev, enum mlx5dr_domain_type type); 44 45 int mlx5dr_domain_destroy(struct mlx5dr_domain *domain); 46 47 int mlx5dr_domain_sync(struct mlx5dr_domain *domain, u32 flags); 48 49 void mlx5dr_domain_set_peer(struct mlx5dr_domain *dmn, 50 struct mlx5dr_domain *peer_dmn); 51 52 struct mlx5dr_table * 53 mlx5dr_table_create(struct mlx5dr_domain *domain, u32 level, u32 flags); 54 55 int mlx5dr_table_destroy(struct mlx5dr_table *table); 56 57 u32 mlx5dr_table_get_id(struct mlx5dr_table *table); 58 59 struct mlx5dr_matcher * 60 mlx5dr_matcher_create(struct mlx5dr_table *table, 61 u32 priority, 62 u8 match_criteria_enable, 63 struct mlx5dr_match_parameters *mask); 64 65 int mlx5dr_matcher_destroy(struct mlx5dr_matcher *matcher); 66 67 struct mlx5dr_rule * 68 mlx5dr_rule_create(struct mlx5dr_matcher *matcher, 69 struct mlx5dr_match_parameters *value, 70 size_t num_actions, 71 struct mlx5dr_action *actions[], 72 u32 flow_source); 73 74 int mlx5dr_rule_destroy(struct mlx5dr_rule *rule); 75 76 int mlx5dr_table_set_miss_action(struct mlx5dr_table *tbl, 77 struct mlx5dr_action *action); 78 79 struct mlx5dr_action * 80 mlx5dr_action_create_dest_table_num(struct mlx5dr_domain *dmn, u32 table_num); 81 82 struct mlx5dr_action * 83 mlx5dr_action_create_dest_table(struct mlx5dr_table *table); 84 85 struct mlx5dr_action * 86 mlx5dr_action_create_dest_flow_fw_table(struct mlx5dr_domain *domain, 87 struct mlx5_flow_table *ft); 88 89 struct mlx5dr_action * 90 mlx5dr_action_create_dest_vport(struct mlx5dr_domain *domain, 91 u32 vport, u8 vhca_id_valid, 92 u16 vhca_id); 93 94 struct mlx5dr_action * 95 mlx5dr_action_create_mult_dest_tbl(struct mlx5dr_domain *dmn, 96 struct mlx5dr_action_dest *dests, 97 u32 num_of_dests); 98 99 struct mlx5dr_action *mlx5dr_action_create_drop(void); 100 101 struct mlx5dr_action *mlx5dr_action_create_tag(u32 tag_value); 102 103 struct mlx5dr_action * 104 mlx5dr_action_create_flow_sampler(struct mlx5dr_domain *dmn, u32 sampler_id); 105 106 struct mlx5dr_action * 107 mlx5dr_action_create_flow_counter(u32 counter_id); 108 109 struct mlx5dr_action * 110 mlx5dr_action_create_packet_reformat(struct mlx5dr_domain *dmn, 111 enum mlx5dr_action_reformat_type reformat_type, 112 u8 reformat_param_0, 113 u8 reformat_param_1, 114 size_t data_sz, 115 void *data); 116 117 struct mlx5dr_action * 118 mlx5dr_action_create_modify_header(struct mlx5dr_domain *domain, 119 u32 flags, 120 size_t actions_sz, 121 __be64 actions[]); 122 123 struct mlx5dr_action *mlx5dr_action_create_pop_vlan(void); 124 125 struct mlx5dr_action * 126 mlx5dr_action_create_push_vlan(struct mlx5dr_domain *domain, __be32 vlan_hdr); 127 128 int mlx5dr_action_destroy(struct mlx5dr_action *action); 129 130 static inline bool 131 mlx5dr_is_supported(struct mlx5_core_dev *dev) 132 { 133 return MLX5_CAP_GEN(dev, roce) && 134 (MLX5_CAP_ESW_FLOWTABLE_FDB(dev, sw_owner) || 135 (MLX5_CAP_ESW_FLOWTABLE_FDB(dev, sw_owner_v2) && 136 (MLX5_CAP_GEN(dev, steering_format_version) <= 137 MLX5_STEERING_FORMAT_CONNECTX_6DX))); 138 } 139 140 /* buddy functions & structure */ 141 142 struct mlx5dr_icm_mr; 143 144 struct mlx5dr_icm_buddy_mem { 145 unsigned long **bitmap; 146 unsigned int *num_free; 147 u32 max_order; 148 struct list_head list_node; 149 struct mlx5dr_icm_mr *icm_mr; 150 struct mlx5dr_icm_pool *pool; 151 152 /* This is the list of used chunks. HW may be accessing this memory */ 153 struct list_head used_list; 154 u64 used_memory; 155 156 /* Hardware may be accessing this memory but at some future, 157 * undetermined time, it might cease to do so. 158 * sync_ste command sets them free. 159 */ 160 struct list_head hot_list; 161 }; 162 163 int mlx5dr_buddy_init(struct mlx5dr_icm_buddy_mem *buddy, 164 unsigned int max_order); 165 void mlx5dr_buddy_cleanup(struct mlx5dr_icm_buddy_mem *buddy); 166 int mlx5dr_buddy_alloc_mem(struct mlx5dr_icm_buddy_mem *buddy, 167 unsigned int order, 168 unsigned int *segment); 169 void mlx5dr_buddy_free_mem(struct mlx5dr_icm_buddy_mem *buddy, 170 unsigned int seg, unsigned int order); 171 172 #endif /* _MLX5DR_H_ */ 173