1 /* 2 * Copyright (c) 2015, Mellanox Technologies. All rights reserved. 3 * 4 * This software is available to you under a choice of one of two 5 * licenses. You may choose to be licensed under the terms of the GNU 6 * General Public License (GPL) Version 2, available from the file 7 * COPYING in the main directory of this source tree, or the 8 * OpenIB.org BSD license below: 9 * 10 * Redistribution and use in source and binary forms, with or 11 * without modification, are permitted provided that the following 12 * conditions are met: 13 * 14 * - Redistributions of source code must retain the above 15 * copyright notice, this list of conditions and the following 16 * disclaimer. 17 * 18 * - Redistributions in binary form must reproduce the above 19 * copyright notice, this list of conditions and the following 20 * disclaimer in the documentation and/or other materials 21 * provided with the distribution. 22 * 23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 30 * SOFTWARE. 31 */ 32 33 #ifndef _MLX5_FS_ 34 #define _MLX5_FS_ 35 36 #include <linux/mlx5/driver.h> 37 #include <linux/mlx5/mlx5_ifc.h> 38 39 #define MLX5_FS_DEFAULT_FLOW_TAG 0x0 40 41 #define MLX5_SET_CFG(p, f, v) MLX5_SET(create_flow_group_in, p, f, v) 42 43 enum mlx5_flow_destination_type { 44 MLX5_FLOW_DESTINATION_TYPE_NONE, 45 MLX5_FLOW_DESTINATION_TYPE_VPORT, 46 MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE, 47 MLX5_FLOW_DESTINATION_TYPE_TIR, 48 MLX5_FLOW_DESTINATION_TYPE_FLOW_SAMPLER, 49 MLX5_FLOW_DESTINATION_TYPE_UPLINK, 50 MLX5_FLOW_DESTINATION_TYPE_PORT, 51 MLX5_FLOW_DESTINATION_TYPE_COUNTER, 52 MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE_NUM, 53 MLX5_FLOW_DESTINATION_TYPE_RANGE, 54 }; 55 56 enum { 57 MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_PRIO = 1 << 16, 58 MLX5_FLOW_CONTEXT_ACTION_ENCRYPT = 1 << 17, 59 MLX5_FLOW_CONTEXT_ACTION_DECRYPT = 1 << 18, 60 MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_NS = 1 << 19, 61 }; 62 63 enum { 64 MLX5_FLOW_TABLE_TUNNEL_EN_REFORMAT = BIT(0), 65 MLX5_FLOW_TABLE_TUNNEL_EN_DECAP = BIT(1), 66 MLX5_FLOW_TABLE_TERMINATION = BIT(2), 67 MLX5_FLOW_TABLE_UNMANAGED = BIT(3), 68 MLX5_FLOW_TABLE_OTHER_VPORT = BIT(4), 69 }; 70 71 #define LEFTOVERS_RULE_NUM 2 72 static inline void build_leftovers_ft_param(int *priority, 73 int *n_ent, 74 int *n_grp) 75 { 76 *priority = 0; /* Priority of leftovers_prio-0 */ 77 *n_ent = LEFTOVERS_RULE_NUM; 78 *n_grp = LEFTOVERS_RULE_NUM; 79 } 80 81 enum mlx5_flow_namespace_type { 82 MLX5_FLOW_NAMESPACE_BYPASS, 83 MLX5_FLOW_NAMESPACE_KERNEL_RX_MACSEC, 84 MLX5_FLOW_NAMESPACE_LAG, 85 MLX5_FLOW_NAMESPACE_OFFLOADS, 86 MLX5_FLOW_NAMESPACE_ETHTOOL, 87 MLX5_FLOW_NAMESPACE_KERNEL, 88 MLX5_FLOW_NAMESPACE_LEFTOVERS, 89 MLX5_FLOW_NAMESPACE_ANCHOR, 90 MLX5_FLOW_NAMESPACE_FDB_BYPASS, 91 MLX5_FLOW_NAMESPACE_FDB, 92 MLX5_FLOW_NAMESPACE_ESW_EGRESS, 93 MLX5_FLOW_NAMESPACE_ESW_INGRESS, 94 MLX5_FLOW_NAMESPACE_SNIFFER_RX, 95 MLX5_FLOW_NAMESPACE_SNIFFER_TX, 96 MLX5_FLOW_NAMESPACE_EGRESS, 97 MLX5_FLOW_NAMESPACE_EGRESS_IPSEC, 98 MLX5_FLOW_NAMESPACE_EGRESS_MACSEC, 99 MLX5_FLOW_NAMESPACE_RDMA_RX, 100 MLX5_FLOW_NAMESPACE_RDMA_RX_KERNEL, 101 MLX5_FLOW_NAMESPACE_RDMA_TX, 102 MLX5_FLOW_NAMESPACE_PORT_SEL, 103 MLX5_FLOW_NAMESPACE_RDMA_RX_COUNTERS, 104 MLX5_FLOW_NAMESPACE_RDMA_TX_COUNTERS, 105 }; 106 107 enum { 108 FDB_BYPASS_PATH, 109 FDB_TC_OFFLOAD, 110 FDB_FT_OFFLOAD, 111 FDB_TC_MISS, 112 FDB_BR_OFFLOAD, 113 FDB_SLOW_PATH, 114 FDB_PER_VPORT, 115 }; 116 117 struct mlx5_pkt_reformat; 118 struct mlx5_modify_hdr; 119 struct mlx5_flow_definer; 120 struct mlx5_flow_table; 121 struct mlx5_flow_group; 122 struct mlx5_flow_namespace; 123 struct mlx5_flow_handle; 124 125 enum { 126 FLOW_CONTEXT_HAS_TAG = BIT(0), 127 }; 128 129 struct mlx5_flow_context { 130 u32 flags; 131 u32 flow_tag; 132 u32 flow_source; 133 }; 134 135 struct mlx5_flow_spec { 136 u8 match_criteria_enable; 137 u32 match_criteria[MLX5_ST_SZ_DW(fte_match_param)]; 138 u32 match_value[MLX5_ST_SZ_DW(fte_match_param)]; 139 struct mlx5_flow_context flow_context; 140 }; 141 142 enum { 143 MLX5_FLOW_DEST_VPORT_VHCA_ID = BIT(0), 144 MLX5_FLOW_DEST_VPORT_REFORMAT_ID = BIT(1), 145 }; 146 147 enum mlx5_flow_dest_range_field { 148 MLX5_FLOW_DEST_RANGE_FIELD_PKT_LEN = 0, 149 }; 150 151 struct mlx5_flow_destination { 152 enum mlx5_flow_destination_type type; 153 union { 154 u32 tir_num; 155 u32 ft_num; 156 struct mlx5_flow_table *ft; 157 u32 counter_id; 158 struct { 159 u16 num; 160 u16 vhca_id; 161 struct mlx5_pkt_reformat *pkt_reformat; 162 u8 flags; 163 } vport; 164 struct { 165 struct mlx5_flow_table *hit_ft; 166 struct mlx5_flow_table *miss_ft; 167 enum mlx5_flow_dest_range_field field; 168 u32 min; 169 u32 max; 170 } range; 171 u32 sampler_id; 172 }; 173 }; 174 175 struct mod_hdr_tbl { 176 struct mutex lock; /* protects hlist */ 177 DECLARE_HASHTABLE(hlist, 8); 178 }; 179 180 struct mlx5_flow_namespace * 181 mlx5_get_fdb_sub_ns(struct mlx5_core_dev *dev, int n); 182 struct mlx5_flow_namespace * 183 mlx5_get_flow_namespace(struct mlx5_core_dev *dev, 184 enum mlx5_flow_namespace_type type); 185 struct mlx5_flow_namespace * 186 mlx5_get_flow_vport_acl_namespace(struct mlx5_core_dev *dev, 187 enum mlx5_flow_namespace_type type, 188 int vport); 189 190 struct mlx5_flow_table_attr { 191 int prio; 192 int max_fte; 193 u32 level; 194 u32 flags; 195 u16 uid; 196 struct mlx5_flow_table *next_ft; 197 198 struct { 199 int max_num_groups; 200 int num_reserved_entries; 201 } autogroup; 202 }; 203 204 struct mlx5_flow_table * 205 mlx5_create_flow_table(struct mlx5_flow_namespace *ns, 206 struct mlx5_flow_table_attr *ft_attr); 207 208 struct mlx5_flow_table * 209 mlx5_create_auto_grouped_flow_table(struct mlx5_flow_namespace *ns, 210 struct mlx5_flow_table_attr *ft_attr); 211 212 struct mlx5_flow_table * 213 mlx5_create_vport_flow_table(struct mlx5_flow_namespace *ns, 214 struct mlx5_flow_table_attr *ft_attr, u16 vport); 215 struct mlx5_flow_table *mlx5_create_lag_demux_flow_table( 216 struct mlx5_flow_namespace *ns, 217 int prio, u32 level); 218 int mlx5_destroy_flow_table(struct mlx5_flow_table *ft); 219 220 /* inbox should be set with the following values: 221 * start_flow_index 222 * end_flow_index 223 * match_criteria_enable 224 * match_criteria 225 */ 226 struct mlx5_flow_group * 227 mlx5_create_flow_group(struct mlx5_flow_table *ft, u32 *in); 228 void mlx5_destroy_flow_group(struct mlx5_flow_group *fg); 229 230 struct mlx5_exe_aso { 231 u32 object_id; 232 u8 type; 233 u8 return_reg_id; 234 union { 235 u32 ctrl_data; 236 struct { 237 u8 meter_idx; 238 u8 init_color; 239 } flow_meter; 240 }; 241 }; 242 243 struct mlx5_fs_vlan { 244 u16 ethtype; 245 u16 vid; 246 u8 prio; 247 }; 248 249 #define MLX5_FS_VLAN_DEPTH 2 250 251 enum { 252 FLOW_ACT_NO_APPEND = BIT(0), 253 FLOW_ACT_IGNORE_FLOW_LEVEL = BIT(1), 254 }; 255 256 struct mlx5_flow_act { 257 u32 action; 258 struct mlx5_modify_hdr *modify_hdr; 259 struct mlx5_pkt_reformat *pkt_reformat; 260 struct mlx5_flow_act_crypto_params { 261 u8 type; 262 u32 obj_id; 263 } crypto; 264 u32 flags; 265 struct mlx5_fs_vlan vlan[MLX5_FS_VLAN_DEPTH]; 266 struct ib_counters *counters; 267 struct mlx5_flow_group *fg; 268 struct mlx5_exe_aso exe_aso; 269 }; 270 271 #define MLX5_DECLARE_FLOW_ACT(name) \ 272 struct mlx5_flow_act name = { .action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST,\ 273 .flags = 0, } 274 275 /* Single destination per rule. 276 * Group ID is implied by the match criteria. 277 */ 278 struct mlx5_flow_handle * 279 mlx5_add_flow_rules(struct mlx5_flow_table *ft, 280 const struct mlx5_flow_spec *spec, 281 struct mlx5_flow_act *flow_act, 282 struct mlx5_flow_destination *dest, 283 int num_dest); 284 void mlx5_del_flow_rules(struct mlx5_flow_handle *fr); 285 286 int mlx5_modify_rule_destination(struct mlx5_flow_handle *handler, 287 struct mlx5_flow_destination *new_dest, 288 struct mlx5_flow_destination *old_dest); 289 290 struct mlx5_fc *mlx5_fc_create(struct mlx5_core_dev *dev, bool aging); 291 292 /* As mlx5_fc_create() but doesn't queue stats refresh thread. */ 293 struct mlx5_fc *mlx5_fc_create_ex(struct mlx5_core_dev *dev, bool aging); 294 295 void mlx5_fc_destroy(struct mlx5_core_dev *dev, struct mlx5_fc *counter); 296 u64 mlx5_fc_query_lastuse(struct mlx5_fc *counter); 297 void mlx5_fc_query_cached(struct mlx5_fc *counter, 298 u64 *bytes, u64 *packets, u64 *lastuse); 299 int mlx5_fc_query(struct mlx5_core_dev *dev, struct mlx5_fc *counter, 300 u64 *packets, u64 *bytes); 301 u32 mlx5_fc_id(struct mlx5_fc *counter); 302 303 int mlx5_fs_add_rx_underlay_qpn(struct mlx5_core_dev *dev, u32 underlay_qpn); 304 int mlx5_fs_remove_rx_underlay_qpn(struct mlx5_core_dev *dev, u32 underlay_qpn); 305 306 struct mlx5_modify_hdr *mlx5_modify_header_alloc(struct mlx5_core_dev *dev, 307 u8 ns_type, u8 num_actions, 308 void *modify_actions); 309 void mlx5_modify_header_dealloc(struct mlx5_core_dev *dev, 310 struct mlx5_modify_hdr *modify_hdr); 311 struct mlx5_flow_definer * 312 mlx5_create_match_definer(struct mlx5_core_dev *dev, 313 enum mlx5_flow_namespace_type ns_type, u16 format_id, 314 u32 *match_mask); 315 void mlx5_destroy_match_definer(struct mlx5_core_dev *dev, 316 struct mlx5_flow_definer *definer); 317 int mlx5_get_match_definer_id(struct mlx5_flow_definer *definer); 318 319 struct mlx5_pkt_reformat_params { 320 int type; 321 u8 param_0; 322 u8 param_1; 323 size_t size; 324 void *data; 325 }; 326 327 struct mlx5_pkt_reformat *mlx5_packet_reformat_alloc(struct mlx5_core_dev *dev, 328 struct mlx5_pkt_reformat_params *params, 329 enum mlx5_flow_namespace_type ns_type); 330 void mlx5_packet_reformat_dealloc(struct mlx5_core_dev *dev, 331 struct mlx5_pkt_reformat *reformat); 332 333 u32 mlx5_flow_table_id(struct mlx5_flow_table *ft); 334 #endif 335