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