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