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, 77 MLX5_FLOW_NAMESPACE_ESW_EGRESS, 78 MLX5_FLOW_NAMESPACE_ESW_INGRESS, 79 MLX5_FLOW_NAMESPACE_SNIFFER_RX, 80 MLX5_FLOW_NAMESPACE_SNIFFER_TX, 81 MLX5_FLOW_NAMESPACE_EGRESS, 82 MLX5_FLOW_NAMESPACE_EGRESS_KERNEL, 83 MLX5_FLOW_NAMESPACE_RDMA_RX, 84 MLX5_FLOW_NAMESPACE_RDMA_RX_KERNEL, 85 MLX5_FLOW_NAMESPACE_RDMA_TX, 86 }; 87 88 enum { 89 FDB_BYPASS_PATH, 90 FDB_TC_OFFLOAD, 91 FDB_FT_OFFLOAD, 92 FDB_TC_MISS, 93 FDB_BR_OFFLOAD, 94 FDB_SLOW_PATH, 95 FDB_PER_VPORT, 96 }; 97 98 struct mlx5_pkt_reformat; 99 struct mlx5_modify_hdr; 100 struct mlx5_flow_table; 101 struct mlx5_flow_group; 102 struct mlx5_flow_namespace; 103 struct mlx5_flow_handle; 104 105 enum { 106 FLOW_CONTEXT_HAS_TAG = BIT(0), 107 }; 108 109 struct mlx5_flow_context { 110 u32 flags; 111 u32 flow_tag; 112 u32 flow_source; 113 }; 114 115 struct mlx5_flow_spec { 116 u8 match_criteria_enable; 117 u32 match_criteria[MLX5_ST_SZ_DW(fte_match_param)]; 118 u32 match_value[MLX5_ST_SZ_DW(fte_match_param)]; 119 struct mlx5_flow_context flow_context; 120 }; 121 122 enum { 123 MLX5_FLOW_DEST_VPORT_VHCA_ID = BIT(0), 124 MLX5_FLOW_DEST_VPORT_REFORMAT_ID = BIT(1), 125 }; 126 127 struct mlx5_flow_destination { 128 enum mlx5_flow_destination_type type; 129 union { 130 u32 tir_num; 131 u32 ft_num; 132 struct mlx5_flow_table *ft; 133 u32 counter_id; 134 struct { 135 u16 num; 136 u16 vhca_id; 137 struct mlx5_pkt_reformat *pkt_reformat; 138 u8 flags; 139 } vport; 140 u32 sampler_id; 141 }; 142 }; 143 144 struct mod_hdr_tbl { 145 struct mutex lock; /* protects hlist */ 146 DECLARE_HASHTABLE(hlist, 8); 147 }; 148 149 struct mlx5_flow_namespace * 150 mlx5_get_fdb_sub_ns(struct mlx5_core_dev *dev, int n); 151 struct mlx5_flow_namespace * 152 mlx5_get_flow_namespace(struct mlx5_core_dev *dev, 153 enum mlx5_flow_namespace_type type); 154 struct mlx5_flow_namespace * 155 mlx5_get_flow_vport_acl_namespace(struct mlx5_core_dev *dev, 156 enum mlx5_flow_namespace_type type, 157 int vport); 158 159 struct mlx5_flow_table_attr { 160 int prio; 161 int max_fte; 162 u32 level; 163 u32 flags; 164 struct mlx5_flow_table *next_ft; 165 166 struct { 167 int max_num_groups; 168 int num_reserved_entries; 169 } autogroup; 170 }; 171 172 struct mlx5_flow_table * 173 mlx5_create_flow_table(struct mlx5_flow_namespace *ns, 174 struct mlx5_flow_table_attr *ft_attr); 175 176 struct mlx5_flow_table * 177 mlx5_create_auto_grouped_flow_table(struct mlx5_flow_namespace *ns, 178 struct mlx5_flow_table_attr *ft_attr); 179 180 struct mlx5_flow_table * 181 mlx5_create_vport_flow_table(struct mlx5_flow_namespace *ns, 182 struct mlx5_flow_table_attr *ft_attr, u16 vport); 183 struct mlx5_flow_table *mlx5_create_lag_demux_flow_table( 184 struct mlx5_flow_namespace *ns, 185 int prio, u32 level); 186 int mlx5_destroy_flow_table(struct mlx5_flow_table *ft); 187 188 /* inbox should be set with the following values: 189 * start_flow_index 190 * end_flow_index 191 * match_criteria_enable 192 * match_criteria 193 */ 194 struct mlx5_flow_group * 195 mlx5_create_flow_group(struct mlx5_flow_table *ft, u32 *in); 196 void mlx5_destroy_flow_group(struct mlx5_flow_group *fg); 197 198 struct mlx5_fs_vlan { 199 u16 ethtype; 200 u16 vid; 201 u8 prio; 202 }; 203 204 #define MLX5_FS_VLAN_DEPTH 2 205 206 enum { 207 FLOW_ACT_NO_APPEND = BIT(0), 208 FLOW_ACT_IGNORE_FLOW_LEVEL = BIT(1), 209 }; 210 211 struct mlx5_flow_act { 212 u32 action; 213 struct mlx5_modify_hdr *modify_hdr; 214 struct mlx5_pkt_reformat *pkt_reformat; 215 union { 216 u32 ipsec_obj_id; 217 uintptr_t esp_id; 218 }; 219 u32 flags; 220 struct mlx5_fs_vlan vlan[MLX5_FS_VLAN_DEPTH]; 221 struct ib_counters *counters; 222 }; 223 224 #define MLX5_DECLARE_FLOW_ACT(name) \ 225 struct mlx5_flow_act name = { .action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST,\ 226 .flags = 0, } 227 228 /* Single destination per rule. 229 * Group ID is implied by the match criteria. 230 */ 231 struct mlx5_flow_handle * 232 mlx5_add_flow_rules(struct mlx5_flow_table *ft, 233 const struct mlx5_flow_spec *spec, 234 struct mlx5_flow_act *flow_act, 235 struct mlx5_flow_destination *dest, 236 int num_dest); 237 void mlx5_del_flow_rules(struct mlx5_flow_handle *fr); 238 239 int mlx5_modify_rule_destination(struct mlx5_flow_handle *handler, 240 struct mlx5_flow_destination *new_dest, 241 struct mlx5_flow_destination *old_dest); 242 243 struct mlx5_fc *mlx5_fc_create(struct mlx5_core_dev *dev, bool aging); 244 void mlx5_fc_destroy(struct mlx5_core_dev *dev, struct mlx5_fc *counter); 245 u64 mlx5_fc_query_lastuse(struct mlx5_fc *counter); 246 void mlx5_fc_query_cached(struct mlx5_fc *counter, 247 u64 *bytes, u64 *packets, u64 *lastuse); 248 int mlx5_fc_query(struct mlx5_core_dev *dev, struct mlx5_fc *counter, 249 u64 *packets, u64 *bytes); 250 u32 mlx5_fc_id(struct mlx5_fc *counter); 251 252 int mlx5_fs_add_rx_underlay_qpn(struct mlx5_core_dev *dev, u32 underlay_qpn); 253 int mlx5_fs_remove_rx_underlay_qpn(struct mlx5_core_dev *dev, u32 underlay_qpn); 254 255 struct mlx5_modify_hdr *mlx5_modify_header_alloc(struct mlx5_core_dev *dev, 256 u8 ns_type, u8 num_actions, 257 void *modify_actions); 258 void mlx5_modify_header_dealloc(struct mlx5_core_dev *dev, 259 struct mlx5_modify_hdr *modify_hdr); 260 261 struct mlx5_pkt_reformat_params { 262 int type; 263 u8 param_0; 264 u8 param_1; 265 size_t size; 266 void *data; 267 }; 268 269 struct mlx5_pkt_reformat *mlx5_packet_reformat_alloc(struct mlx5_core_dev *dev, 270 struct mlx5_pkt_reformat_params *params, 271 enum mlx5_flow_namespace_type ns_type); 272 void mlx5_packet_reformat_dealloc(struct mlx5_core_dev *dev, 273 struct mlx5_pkt_reformat *reformat); 274 275 #endif 276