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