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 enum { 42 MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_PRIO = 1 << 16, 43 MLX5_FLOW_CONTEXT_ACTION_ENCRYPT = 1 << 17, 44 MLX5_FLOW_CONTEXT_ACTION_DECRYPT = 1 << 18, 45 MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_NS = 1 << 19, 46 }; 47 48 enum { 49 MLX5_FLOW_TABLE_TUNNEL_EN_REFORMAT = BIT(0), 50 MLX5_FLOW_TABLE_TUNNEL_EN_DECAP = BIT(1), 51 MLX5_FLOW_TABLE_TERMINATION = BIT(2), 52 MLX5_FLOW_TABLE_UNMANAGED = BIT(3), 53 MLX5_FLOW_TABLE_OTHER_VPORT = BIT(4), 54 }; 55 56 #define LEFTOVERS_RULE_NUM 2 57 static inline void build_leftovers_ft_param(int *priority, 58 int *n_ent, 59 int *n_grp) 60 { 61 *priority = 0; /* Priority of leftovers_prio-0 */ 62 *n_ent = LEFTOVERS_RULE_NUM; 63 *n_grp = LEFTOVERS_RULE_NUM; 64 } 65 66 enum mlx5_flow_namespace_type { 67 MLX5_FLOW_NAMESPACE_BYPASS, 68 MLX5_FLOW_NAMESPACE_LAG, 69 MLX5_FLOW_NAMESPACE_OFFLOADS, 70 MLX5_FLOW_NAMESPACE_ETHTOOL, 71 MLX5_FLOW_NAMESPACE_KERNEL, 72 MLX5_FLOW_NAMESPACE_LEFTOVERS, 73 MLX5_FLOW_NAMESPACE_ANCHOR, 74 MLX5_FLOW_NAMESPACE_FDB, 75 MLX5_FLOW_NAMESPACE_ESW_EGRESS, 76 MLX5_FLOW_NAMESPACE_ESW_INGRESS, 77 MLX5_FLOW_NAMESPACE_SNIFFER_RX, 78 MLX5_FLOW_NAMESPACE_SNIFFER_TX, 79 MLX5_FLOW_NAMESPACE_EGRESS, 80 MLX5_FLOW_NAMESPACE_EGRESS_KERNEL, 81 MLX5_FLOW_NAMESPACE_RDMA_RX, 82 MLX5_FLOW_NAMESPACE_RDMA_RX_KERNEL, 83 MLX5_FLOW_NAMESPACE_RDMA_TX, 84 }; 85 86 enum { 87 FDB_BYPASS_PATH, 88 FDB_TC_OFFLOAD, 89 FDB_FT_OFFLOAD, 90 FDB_TC_MISS, 91 FDB_BR_OFFLOAD, 92 FDB_SLOW_PATH, 93 FDB_PER_VPORT, 94 }; 95 96 struct mlx5_pkt_reformat; 97 struct mlx5_modify_hdr; 98 struct mlx5_flow_table; 99 struct mlx5_flow_group; 100 struct mlx5_flow_namespace; 101 struct mlx5_flow_handle; 102 103 enum { 104 FLOW_CONTEXT_HAS_TAG = BIT(0), 105 }; 106 107 struct mlx5_flow_context { 108 u32 flags; 109 u32 flow_tag; 110 u32 flow_source; 111 }; 112 113 struct mlx5_flow_spec { 114 u8 match_criteria_enable; 115 u32 match_criteria[MLX5_ST_SZ_DW(fte_match_param)]; 116 u32 match_value[MLX5_ST_SZ_DW(fte_match_param)]; 117 struct mlx5_flow_context flow_context; 118 }; 119 120 enum { 121 MLX5_FLOW_DEST_VPORT_VHCA_ID = BIT(0), 122 MLX5_FLOW_DEST_VPORT_REFORMAT_ID = BIT(1), 123 }; 124 125 struct mlx5_flow_destination { 126 enum mlx5_flow_destination_type type; 127 union { 128 u32 tir_num; 129 u32 ft_num; 130 struct mlx5_flow_table *ft; 131 u32 counter_id; 132 struct { 133 u16 num; 134 u16 vhca_id; 135 struct mlx5_pkt_reformat *pkt_reformat; 136 u8 flags; 137 } vport; 138 u32 sampler_id; 139 }; 140 }; 141 142 struct mod_hdr_tbl { 143 struct mutex lock; /* protects hlist */ 144 DECLARE_HASHTABLE(hlist, 8); 145 }; 146 147 struct mlx5_flow_namespace * 148 mlx5_get_fdb_sub_ns(struct mlx5_core_dev *dev, int n); 149 struct mlx5_flow_namespace * 150 mlx5_get_flow_namespace(struct mlx5_core_dev *dev, 151 enum mlx5_flow_namespace_type type); 152 struct mlx5_flow_namespace * 153 mlx5_get_flow_vport_acl_namespace(struct mlx5_core_dev *dev, 154 enum mlx5_flow_namespace_type type, 155 int vport); 156 157 struct mlx5_flow_table_attr { 158 int prio; 159 int max_fte; 160 u32 level; 161 u32 flags; 162 struct mlx5_flow_table *next_ft; 163 164 struct { 165 int max_num_groups; 166 int num_reserved_entries; 167 } autogroup; 168 }; 169 170 struct mlx5_flow_table * 171 mlx5_create_flow_table(struct mlx5_flow_namespace *ns, 172 struct mlx5_flow_table_attr *ft_attr); 173 174 struct mlx5_flow_table * 175 mlx5_create_auto_grouped_flow_table(struct mlx5_flow_namespace *ns, 176 struct mlx5_flow_table_attr *ft_attr); 177 178 struct mlx5_flow_table * 179 mlx5_create_vport_flow_table(struct mlx5_flow_namespace *ns, 180 struct mlx5_flow_table_attr *ft_attr, u16 vport); 181 struct mlx5_flow_table *mlx5_create_lag_demux_flow_table( 182 struct mlx5_flow_namespace *ns, 183 int prio, u32 level); 184 int mlx5_destroy_flow_table(struct mlx5_flow_table *ft); 185 186 /* inbox should be set with the following values: 187 * start_flow_index 188 * end_flow_index 189 * match_criteria_enable 190 * match_criteria 191 */ 192 struct mlx5_flow_group * 193 mlx5_create_flow_group(struct mlx5_flow_table *ft, u32 *in); 194 void mlx5_destroy_flow_group(struct mlx5_flow_group *fg); 195 196 struct mlx5_fs_vlan { 197 u16 ethtype; 198 u16 vid; 199 u8 prio; 200 }; 201 202 #define MLX5_FS_VLAN_DEPTH 2 203 204 enum { 205 FLOW_ACT_NO_APPEND = BIT(0), 206 FLOW_ACT_IGNORE_FLOW_LEVEL = BIT(1), 207 }; 208 209 struct mlx5_flow_act { 210 u32 action; 211 struct mlx5_modify_hdr *modify_hdr; 212 struct mlx5_pkt_reformat *pkt_reformat; 213 union { 214 u32 ipsec_obj_id; 215 uintptr_t esp_id; 216 }; 217 u32 flags; 218 struct mlx5_fs_vlan vlan[MLX5_FS_VLAN_DEPTH]; 219 struct ib_counters *counters; 220 }; 221 222 #define MLX5_DECLARE_FLOW_ACT(name) \ 223 struct mlx5_flow_act name = { .action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST,\ 224 .flags = 0, } 225 226 /* Single destination per rule. 227 * Group ID is implied by the match criteria. 228 */ 229 struct mlx5_flow_handle * 230 mlx5_add_flow_rules(struct mlx5_flow_table *ft, 231 const struct mlx5_flow_spec *spec, 232 struct mlx5_flow_act *flow_act, 233 struct mlx5_flow_destination *dest, 234 int num_dest); 235 void mlx5_del_flow_rules(struct mlx5_flow_handle *fr); 236 237 int mlx5_modify_rule_destination(struct mlx5_flow_handle *handler, 238 struct mlx5_flow_destination *new_dest, 239 struct mlx5_flow_destination *old_dest); 240 241 struct mlx5_fc *mlx5_fc_create(struct mlx5_core_dev *dev, bool aging); 242 void mlx5_fc_destroy(struct mlx5_core_dev *dev, struct mlx5_fc *counter); 243 u64 mlx5_fc_query_lastuse(struct mlx5_fc *counter); 244 void mlx5_fc_query_cached(struct mlx5_fc *counter, 245 u64 *bytes, u64 *packets, u64 *lastuse); 246 int mlx5_fc_query(struct mlx5_core_dev *dev, struct mlx5_fc *counter, 247 u64 *packets, u64 *bytes); 248 u32 mlx5_fc_id(struct mlx5_fc *counter); 249 250 int mlx5_fs_add_rx_underlay_qpn(struct mlx5_core_dev *dev, u32 underlay_qpn); 251 int mlx5_fs_remove_rx_underlay_qpn(struct mlx5_core_dev *dev, u32 underlay_qpn); 252 253 struct mlx5_modify_hdr *mlx5_modify_header_alloc(struct mlx5_core_dev *dev, 254 u8 ns_type, u8 num_actions, 255 void *modify_actions); 256 void mlx5_modify_header_dealloc(struct mlx5_core_dev *dev, 257 struct mlx5_modify_hdr *modify_hdr); 258 259 struct mlx5_pkt_reformat_params { 260 int type; 261 u8 param_0; 262 u8 param_1; 263 size_t size; 264 void *data; 265 }; 266 267 struct mlx5_pkt_reformat *mlx5_packet_reformat_alloc(struct mlx5_core_dev *dev, 268 struct mlx5_pkt_reformat_params *params, 269 enum mlx5_flow_namespace_type ns_type); 270 void mlx5_packet_reformat_dealloc(struct mlx5_core_dev *dev, 271 struct mlx5_pkt_reformat *reformat); 272 273 #endif 274