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 }; 54 55 enum { 56 MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_PRIO = 1 << 16, 57 MLX5_FLOW_CONTEXT_ACTION_ENCRYPT = 1 << 17, 58 MLX5_FLOW_CONTEXT_ACTION_DECRYPT = 1 << 18, 59 MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_NS = 1 << 19, 60 }; 61 62 enum { 63 MLX5_FLOW_TABLE_TUNNEL_EN_REFORMAT = BIT(0), 64 MLX5_FLOW_TABLE_TUNNEL_EN_DECAP = BIT(1), 65 MLX5_FLOW_TABLE_TERMINATION = BIT(2), 66 MLX5_FLOW_TABLE_UNMANAGED = BIT(3), 67 MLX5_FLOW_TABLE_OTHER_VPORT = BIT(4), 68 }; 69 70 #define LEFTOVERS_RULE_NUM 2 71 static inline void build_leftovers_ft_param(int *priority, 72 int *n_ent, 73 int *n_grp) 74 { 75 *priority = 0; /* Priority of leftovers_prio-0 */ 76 *n_ent = LEFTOVERS_RULE_NUM; 77 *n_grp = LEFTOVERS_RULE_NUM; 78 } 79 80 enum mlx5_flow_namespace_type { 81 MLX5_FLOW_NAMESPACE_BYPASS, 82 MLX5_FLOW_NAMESPACE_LAG, 83 MLX5_FLOW_NAMESPACE_OFFLOADS, 84 MLX5_FLOW_NAMESPACE_ETHTOOL, 85 MLX5_FLOW_NAMESPACE_KERNEL, 86 MLX5_FLOW_NAMESPACE_LEFTOVERS, 87 MLX5_FLOW_NAMESPACE_ANCHOR, 88 MLX5_FLOW_NAMESPACE_FDB_BYPASS, 89 MLX5_FLOW_NAMESPACE_FDB, 90 MLX5_FLOW_NAMESPACE_ESW_EGRESS, 91 MLX5_FLOW_NAMESPACE_ESW_INGRESS, 92 MLX5_FLOW_NAMESPACE_SNIFFER_RX, 93 MLX5_FLOW_NAMESPACE_SNIFFER_TX, 94 MLX5_FLOW_NAMESPACE_EGRESS, 95 MLX5_FLOW_NAMESPACE_EGRESS_KERNEL, 96 MLX5_FLOW_NAMESPACE_RDMA_RX, 97 MLX5_FLOW_NAMESPACE_RDMA_RX_KERNEL, 98 MLX5_FLOW_NAMESPACE_RDMA_TX, 99 MLX5_FLOW_NAMESPACE_PORT_SEL, 100 MLX5_FLOW_NAMESPACE_RDMA_RX_COUNTERS, 101 MLX5_FLOW_NAMESPACE_RDMA_TX_COUNTERS, 102 }; 103 104 enum { 105 FDB_BYPASS_PATH, 106 FDB_TC_OFFLOAD, 107 FDB_FT_OFFLOAD, 108 FDB_TC_MISS, 109 FDB_BR_OFFLOAD, 110 FDB_SLOW_PATH, 111 FDB_PER_VPORT, 112 }; 113 114 struct mlx5_pkt_reformat; 115 struct mlx5_modify_hdr; 116 struct mlx5_flow_definer; 117 struct mlx5_flow_table; 118 struct mlx5_flow_group; 119 struct mlx5_flow_namespace; 120 struct mlx5_flow_handle; 121 122 enum { 123 FLOW_CONTEXT_HAS_TAG = BIT(0), 124 }; 125 126 struct mlx5_flow_context { 127 u32 flags; 128 u32 flow_tag; 129 u32 flow_source; 130 }; 131 132 struct mlx5_flow_spec { 133 u8 match_criteria_enable; 134 u32 match_criteria[MLX5_ST_SZ_DW(fte_match_param)]; 135 u32 match_value[MLX5_ST_SZ_DW(fte_match_param)]; 136 struct mlx5_flow_context flow_context; 137 }; 138 139 enum { 140 MLX5_FLOW_DEST_VPORT_VHCA_ID = BIT(0), 141 MLX5_FLOW_DEST_VPORT_REFORMAT_ID = BIT(1), 142 }; 143 144 struct mlx5_flow_destination { 145 enum mlx5_flow_destination_type type; 146 union { 147 u32 tir_num; 148 u32 ft_num; 149 struct mlx5_flow_table *ft; 150 u32 counter_id; 151 struct { 152 u16 num; 153 u16 vhca_id; 154 struct mlx5_pkt_reformat *pkt_reformat; 155 u8 flags; 156 } vport; 157 u32 sampler_id; 158 }; 159 }; 160 161 struct mod_hdr_tbl { 162 struct mutex lock; /* protects hlist */ 163 DECLARE_HASHTABLE(hlist, 8); 164 }; 165 166 struct mlx5_flow_namespace * 167 mlx5_get_fdb_sub_ns(struct mlx5_core_dev *dev, int n); 168 struct mlx5_flow_namespace * 169 mlx5_get_flow_namespace(struct mlx5_core_dev *dev, 170 enum mlx5_flow_namespace_type type); 171 struct mlx5_flow_namespace * 172 mlx5_get_flow_vport_acl_namespace(struct mlx5_core_dev *dev, 173 enum mlx5_flow_namespace_type type, 174 int vport); 175 176 struct mlx5_flow_table_attr { 177 int prio; 178 int max_fte; 179 u32 level; 180 u32 flags; 181 struct mlx5_flow_table *next_ft; 182 183 struct { 184 int max_num_groups; 185 int num_reserved_entries; 186 } autogroup; 187 }; 188 189 struct mlx5_flow_table * 190 mlx5_create_flow_table(struct mlx5_flow_namespace *ns, 191 struct mlx5_flow_table_attr *ft_attr); 192 193 struct mlx5_flow_table * 194 mlx5_create_auto_grouped_flow_table(struct mlx5_flow_namespace *ns, 195 struct mlx5_flow_table_attr *ft_attr); 196 197 struct mlx5_flow_table * 198 mlx5_create_vport_flow_table(struct mlx5_flow_namespace *ns, 199 struct mlx5_flow_table_attr *ft_attr, u16 vport); 200 struct mlx5_flow_table *mlx5_create_lag_demux_flow_table( 201 struct mlx5_flow_namespace *ns, 202 int prio, u32 level); 203 int mlx5_destroy_flow_table(struct mlx5_flow_table *ft); 204 205 /* inbox should be set with the following values: 206 * start_flow_index 207 * end_flow_index 208 * match_criteria_enable 209 * match_criteria 210 */ 211 struct mlx5_flow_group * 212 mlx5_create_flow_group(struct mlx5_flow_table *ft, u32 *in); 213 void mlx5_destroy_flow_group(struct mlx5_flow_group *fg); 214 215 struct mlx5_fs_vlan { 216 u16 ethtype; 217 u16 vid; 218 u8 prio; 219 }; 220 221 #define MLX5_FS_VLAN_DEPTH 2 222 223 enum { 224 FLOW_ACT_NO_APPEND = BIT(0), 225 FLOW_ACT_IGNORE_FLOW_LEVEL = BIT(1), 226 }; 227 228 struct mlx5_flow_act { 229 u32 action; 230 struct mlx5_modify_hdr *modify_hdr; 231 struct mlx5_pkt_reformat *pkt_reformat; 232 union { 233 u32 ipsec_obj_id; 234 uintptr_t esp_id; 235 }; 236 u32 flags; 237 struct mlx5_fs_vlan vlan[MLX5_FS_VLAN_DEPTH]; 238 struct ib_counters *counters; 239 struct mlx5_flow_group *fg; 240 }; 241 242 #define MLX5_DECLARE_FLOW_ACT(name) \ 243 struct mlx5_flow_act name = { .action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST,\ 244 .flags = 0, } 245 246 /* Single destination per rule. 247 * Group ID is implied by the match criteria. 248 */ 249 struct mlx5_flow_handle * 250 mlx5_add_flow_rules(struct mlx5_flow_table *ft, 251 const struct mlx5_flow_spec *spec, 252 struct mlx5_flow_act *flow_act, 253 struct mlx5_flow_destination *dest, 254 int num_dest); 255 void mlx5_del_flow_rules(struct mlx5_flow_handle *fr); 256 257 int mlx5_modify_rule_destination(struct mlx5_flow_handle *handler, 258 struct mlx5_flow_destination *new_dest, 259 struct mlx5_flow_destination *old_dest); 260 261 struct mlx5_fc *mlx5_fc_create(struct mlx5_core_dev *dev, bool aging); 262 263 /* As mlx5_fc_create() but doesn't queue stats refresh thread. */ 264 struct mlx5_fc *mlx5_fc_create_ex(struct mlx5_core_dev *dev, bool aging); 265 266 void mlx5_fc_destroy(struct mlx5_core_dev *dev, struct mlx5_fc *counter); 267 u64 mlx5_fc_query_lastuse(struct mlx5_fc *counter); 268 void mlx5_fc_query_cached(struct mlx5_fc *counter, 269 u64 *bytes, u64 *packets, u64 *lastuse); 270 int mlx5_fc_query(struct mlx5_core_dev *dev, struct mlx5_fc *counter, 271 u64 *packets, u64 *bytes); 272 u32 mlx5_fc_id(struct mlx5_fc *counter); 273 274 int mlx5_fs_add_rx_underlay_qpn(struct mlx5_core_dev *dev, u32 underlay_qpn); 275 int mlx5_fs_remove_rx_underlay_qpn(struct mlx5_core_dev *dev, u32 underlay_qpn); 276 277 struct mlx5_modify_hdr *mlx5_modify_header_alloc(struct mlx5_core_dev *dev, 278 u8 ns_type, u8 num_actions, 279 void *modify_actions); 280 void mlx5_modify_header_dealloc(struct mlx5_core_dev *dev, 281 struct mlx5_modify_hdr *modify_hdr); 282 struct mlx5_flow_definer * 283 mlx5_create_match_definer(struct mlx5_core_dev *dev, 284 enum mlx5_flow_namespace_type ns_type, u16 format_id, 285 u32 *match_mask); 286 void mlx5_destroy_match_definer(struct mlx5_core_dev *dev, 287 struct mlx5_flow_definer *definer); 288 int mlx5_get_match_definer_id(struct mlx5_flow_definer *definer); 289 290 struct mlx5_pkt_reformat_params { 291 int type; 292 u8 param_0; 293 u8 param_1; 294 size_t size; 295 void *data; 296 }; 297 298 struct mlx5_pkt_reformat *mlx5_packet_reformat_alloc(struct mlx5_core_dev *dev, 299 struct mlx5_pkt_reformat_params *params, 300 enum mlx5_flow_namespace_type ns_type); 301 void mlx5_packet_reformat_dealloc(struct mlx5_core_dev *dev, 302 struct mlx5_pkt_reformat *reformat); 303 304 #endif 305