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