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