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 { 44 MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_PRIO = 1 << 16, 45 MLX5_FLOW_CONTEXT_ACTION_ENCRYPT = 1 << 17, 46 MLX5_FLOW_CONTEXT_ACTION_DECRYPT = 1 << 18, 47 MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_NS = 1 << 19, 48 }; 49 50 enum { 51 MLX5_FLOW_TABLE_TUNNEL_EN_REFORMAT = BIT(0), 52 MLX5_FLOW_TABLE_TUNNEL_EN_DECAP = BIT(1), 53 MLX5_FLOW_TABLE_TERMINATION = BIT(2), 54 MLX5_FLOW_TABLE_UNMANAGED = BIT(3), 55 MLX5_FLOW_TABLE_OTHER_VPORT = BIT(4), 56 }; 57 58 #define LEFTOVERS_RULE_NUM 2 59 static inline void build_leftovers_ft_param(int *priority, 60 int *n_ent, 61 int *n_grp) 62 { 63 *priority = 0; /* Priority of leftovers_prio-0 */ 64 *n_ent = LEFTOVERS_RULE_NUM; 65 *n_grp = LEFTOVERS_RULE_NUM; 66 } 67 68 enum mlx5_flow_namespace_type { 69 MLX5_FLOW_NAMESPACE_BYPASS, 70 MLX5_FLOW_NAMESPACE_LAG, 71 MLX5_FLOW_NAMESPACE_OFFLOADS, 72 MLX5_FLOW_NAMESPACE_ETHTOOL, 73 MLX5_FLOW_NAMESPACE_KERNEL, 74 MLX5_FLOW_NAMESPACE_LEFTOVERS, 75 MLX5_FLOW_NAMESPACE_ANCHOR, 76 MLX5_FLOW_NAMESPACE_FDB_BYPASS, 77 MLX5_FLOW_NAMESPACE_FDB, 78 MLX5_FLOW_NAMESPACE_ESW_EGRESS, 79 MLX5_FLOW_NAMESPACE_ESW_INGRESS, 80 MLX5_FLOW_NAMESPACE_SNIFFER_RX, 81 MLX5_FLOW_NAMESPACE_SNIFFER_TX, 82 MLX5_FLOW_NAMESPACE_EGRESS, 83 MLX5_FLOW_NAMESPACE_EGRESS_KERNEL, 84 MLX5_FLOW_NAMESPACE_RDMA_RX, 85 MLX5_FLOW_NAMESPACE_RDMA_RX_KERNEL, 86 MLX5_FLOW_NAMESPACE_RDMA_TX, 87 MLX5_FLOW_NAMESPACE_PORT_SEL, 88 MLX5_FLOW_NAMESPACE_RDMA_RX_COUNTERS, 89 MLX5_FLOW_NAMESPACE_RDMA_TX_COUNTERS, 90 }; 91 92 enum { 93 FDB_BYPASS_PATH, 94 FDB_TC_OFFLOAD, 95 FDB_FT_OFFLOAD, 96 FDB_TC_MISS, 97 FDB_BR_OFFLOAD, 98 FDB_SLOW_PATH, 99 FDB_PER_VPORT, 100 }; 101 102 struct mlx5_pkt_reformat; 103 struct mlx5_modify_hdr; 104 struct mlx5_flow_definer; 105 struct mlx5_flow_table; 106 struct mlx5_flow_group; 107 struct mlx5_flow_namespace; 108 struct mlx5_flow_handle; 109 110 enum { 111 FLOW_CONTEXT_HAS_TAG = BIT(0), 112 }; 113 114 struct mlx5_flow_context { 115 u32 flags; 116 u32 flow_tag; 117 u32 flow_source; 118 }; 119 120 struct mlx5_flow_spec { 121 u8 match_criteria_enable; 122 u32 match_criteria[MLX5_ST_SZ_DW(fte_match_param)]; 123 u32 match_value[MLX5_ST_SZ_DW(fte_match_param)]; 124 struct mlx5_flow_context flow_context; 125 }; 126 127 enum { 128 MLX5_FLOW_DEST_VPORT_VHCA_ID = BIT(0), 129 MLX5_FLOW_DEST_VPORT_REFORMAT_ID = BIT(1), 130 }; 131 132 struct mlx5_flow_destination { 133 enum mlx5_flow_destination_type type; 134 union { 135 u32 tir_num; 136 u32 ft_num; 137 struct mlx5_flow_table *ft; 138 u32 counter_id; 139 struct { 140 u16 num; 141 u16 vhca_id; 142 struct mlx5_pkt_reformat *pkt_reformat; 143 u8 flags; 144 } vport; 145 u32 sampler_id; 146 }; 147 }; 148 149 struct mod_hdr_tbl { 150 struct mutex lock; /* protects hlist */ 151 DECLARE_HASHTABLE(hlist, 8); 152 }; 153 154 struct mlx5_flow_namespace * 155 mlx5_get_fdb_sub_ns(struct mlx5_core_dev *dev, int n); 156 struct mlx5_flow_namespace * 157 mlx5_get_flow_namespace(struct mlx5_core_dev *dev, 158 enum mlx5_flow_namespace_type type); 159 struct mlx5_flow_namespace * 160 mlx5_get_flow_vport_acl_namespace(struct mlx5_core_dev *dev, 161 enum mlx5_flow_namespace_type type, 162 int vport); 163 164 struct mlx5_flow_table_attr { 165 int prio; 166 int max_fte; 167 u32 level; 168 u32 flags; 169 struct mlx5_flow_table *next_ft; 170 171 struct { 172 int max_num_groups; 173 int num_reserved_entries; 174 } autogroup; 175 }; 176 177 struct mlx5_flow_table * 178 mlx5_create_flow_table(struct mlx5_flow_namespace *ns, 179 struct mlx5_flow_table_attr *ft_attr); 180 181 struct mlx5_flow_table * 182 mlx5_create_auto_grouped_flow_table(struct mlx5_flow_namespace *ns, 183 struct mlx5_flow_table_attr *ft_attr); 184 185 struct mlx5_flow_table * 186 mlx5_create_vport_flow_table(struct mlx5_flow_namespace *ns, 187 struct mlx5_flow_table_attr *ft_attr, u16 vport); 188 struct mlx5_flow_table *mlx5_create_lag_demux_flow_table( 189 struct mlx5_flow_namespace *ns, 190 int prio, u32 level); 191 int mlx5_destroy_flow_table(struct mlx5_flow_table *ft); 192 193 /* inbox should be set with the following values: 194 * start_flow_index 195 * end_flow_index 196 * match_criteria_enable 197 * match_criteria 198 */ 199 struct mlx5_flow_group * 200 mlx5_create_flow_group(struct mlx5_flow_table *ft, u32 *in); 201 void mlx5_destroy_flow_group(struct mlx5_flow_group *fg); 202 203 struct mlx5_fs_vlan { 204 u16 ethtype; 205 u16 vid; 206 u8 prio; 207 }; 208 209 #define MLX5_FS_VLAN_DEPTH 2 210 211 enum { 212 FLOW_ACT_NO_APPEND = BIT(0), 213 FLOW_ACT_IGNORE_FLOW_LEVEL = BIT(1), 214 }; 215 216 struct mlx5_flow_act { 217 u32 action; 218 struct mlx5_modify_hdr *modify_hdr; 219 struct mlx5_pkt_reformat *pkt_reformat; 220 union { 221 u32 ipsec_obj_id; 222 uintptr_t esp_id; 223 }; 224 u32 flags; 225 struct mlx5_fs_vlan vlan[MLX5_FS_VLAN_DEPTH]; 226 struct ib_counters *counters; 227 }; 228 229 #define MLX5_DECLARE_FLOW_ACT(name) \ 230 struct mlx5_flow_act name = { .action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST,\ 231 .flags = 0, } 232 233 /* Single destination per rule. 234 * Group ID is implied by the match criteria. 235 */ 236 struct mlx5_flow_handle * 237 mlx5_add_flow_rules(struct mlx5_flow_table *ft, 238 const struct mlx5_flow_spec *spec, 239 struct mlx5_flow_act *flow_act, 240 struct mlx5_flow_destination *dest, 241 int num_dest); 242 void mlx5_del_flow_rules(struct mlx5_flow_handle *fr); 243 244 int mlx5_modify_rule_destination(struct mlx5_flow_handle *handler, 245 struct mlx5_flow_destination *new_dest, 246 struct mlx5_flow_destination *old_dest); 247 248 struct mlx5_fc *mlx5_fc_create(struct mlx5_core_dev *dev, bool aging); 249 250 /* As mlx5_fc_create() but doesn't queue stats refresh thread. */ 251 struct mlx5_fc *mlx5_fc_create_ex(struct mlx5_core_dev *dev, bool aging); 252 253 void mlx5_fc_destroy(struct mlx5_core_dev *dev, struct mlx5_fc *counter); 254 u64 mlx5_fc_query_lastuse(struct mlx5_fc *counter); 255 void mlx5_fc_query_cached(struct mlx5_fc *counter, 256 u64 *bytes, u64 *packets, u64 *lastuse); 257 int mlx5_fc_query(struct mlx5_core_dev *dev, struct mlx5_fc *counter, 258 u64 *packets, u64 *bytes); 259 u32 mlx5_fc_id(struct mlx5_fc *counter); 260 261 int mlx5_fs_add_rx_underlay_qpn(struct mlx5_core_dev *dev, u32 underlay_qpn); 262 int mlx5_fs_remove_rx_underlay_qpn(struct mlx5_core_dev *dev, u32 underlay_qpn); 263 264 struct mlx5_modify_hdr *mlx5_modify_header_alloc(struct mlx5_core_dev *dev, 265 u8 ns_type, u8 num_actions, 266 void *modify_actions); 267 void mlx5_modify_header_dealloc(struct mlx5_core_dev *dev, 268 struct mlx5_modify_hdr *modify_hdr); 269 struct mlx5_flow_definer * 270 mlx5_create_match_definer(struct mlx5_core_dev *dev, 271 enum mlx5_flow_namespace_type ns_type, u16 format_id, 272 u32 *match_mask); 273 void mlx5_destroy_match_definer(struct mlx5_core_dev *dev, 274 struct mlx5_flow_definer *definer); 275 int mlx5_get_match_definer_id(struct mlx5_flow_definer *definer); 276 277 struct mlx5_pkt_reformat_params { 278 int type; 279 u8 param_0; 280 u8 param_1; 281 size_t size; 282 void *data; 283 }; 284 285 struct mlx5_pkt_reformat *mlx5_packet_reformat_alloc(struct mlx5_core_dev *dev, 286 struct mlx5_pkt_reformat_params *params, 287 enum mlx5_flow_namespace_type ns_type); 288 void mlx5_packet_reformat_dealloc(struct mlx5_core_dev *dev, 289 struct mlx5_pkt_reformat *reformat); 290 291 #endif 292