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 }; 79 80 enum { 81 FDB_BYPASS_PATH, 82 FDB_FAST_PATH, 83 FDB_SLOW_PATH, 84 }; 85 86 struct mlx5_flow_table; 87 struct mlx5_flow_group; 88 struct mlx5_flow_namespace; 89 struct mlx5_flow_handle; 90 91 enum { 92 FLOW_CONTEXT_HAS_TAG = BIT(0), 93 }; 94 95 struct mlx5_flow_context { 96 u32 flags; 97 u32 flow_tag; 98 u32 flow_source; 99 }; 100 101 struct mlx5_flow_spec { 102 u8 match_criteria_enable; 103 u32 match_criteria[MLX5_ST_SZ_DW(fte_match_param)]; 104 u32 match_value[MLX5_ST_SZ_DW(fte_match_param)]; 105 struct mlx5_flow_context flow_context; 106 }; 107 108 enum { 109 MLX5_FLOW_DEST_VPORT_VHCA_ID = BIT(0), 110 MLX5_FLOW_DEST_VPORT_REFORMAT_ID = BIT(1), 111 }; 112 113 struct mlx5_flow_destination { 114 enum mlx5_flow_destination_type type; 115 union { 116 u32 tir_num; 117 u32 ft_num; 118 struct mlx5_flow_table *ft; 119 u32 counter_id; 120 struct { 121 u16 num; 122 u16 vhca_id; 123 u32 reformat_id; 124 u8 flags; 125 } vport; 126 }; 127 }; 128 129 struct mlx5_flow_namespace * 130 mlx5_get_fdb_sub_ns(struct mlx5_core_dev *dev, int n); 131 struct mlx5_flow_namespace * 132 mlx5_get_flow_namespace(struct mlx5_core_dev *dev, 133 enum mlx5_flow_namespace_type type); 134 struct mlx5_flow_namespace * 135 mlx5_get_flow_vport_acl_namespace(struct mlx5_core_dev *dev, 136 enum mlx5_flow_namespace_type type, 137 int vport); 138 139 struct mlx5_flow_table * 140 mlx5_create_auto_grouped_flow_table(struct mlx5_flow_namespace *ns, 141 int prio, 142 int num_flow_table_entries, 143 int max_num_groups, 144 u32 level, 145 u32 flags); 146 147 struct mlx5_flow_table_attr { 148 int prio; 149 int max_fte; 150 u32 level; 151 u32 flags; 152 }; 153 154 struct mlx5_flow_table * 155 mlx5_create_flow_table(struct mlx5_flow_namespace *ns, 156 struct mlx5_flow_table_attr *ft_attr); 157 158 struct mlx5_flow_table * 159 mlx5_create_vport_flow_table(struct mlx5_flow_namespace *ns, 160 int prio, 161 int num_flow_table_entries, 162 u32 level, u16 vport); 163 struct mlx5_flow_table *mlx5_create_lag_demux_flow_table( 164 struct mlx5_flow_namespace *ns, 165 int prio, u32 level); 166 int mlx5_destroy_flow_table(struct mlx5_flow_table *ft); 167 168 /* inbox should be set with the following values: 169 * start_flow_index 170 * end_flow_index 171 * match_criteria_enable 172 * match_criteria 173 */ 174 struct mlx5_flow_group * 175 mlx5_create_flow_group(struct mlx5_flow_table *ft, u32 *in); 176 void mlx5_destroy_flow_group(struct mlx5_flow_group *fg); 177 178 struct mlx5_fs_vlan { 179 u16 ethtype; 180 u16 vid; 181 u8 prio; 182 }; 183 184 #define MLX5_FS_VLAN_DEPTH 2 185 186 enum { 187 FLOW_ACT_NO_APPEND = BIT(0), 188 }; 189 190 struct mlx5_flow_act { 191 u32 action; 192 u32 reformat_id; 193 u32 modify_id; 194 uintptr_t esp_id; 195 u32 flags; 196 struct mlx5_fs_vlan vlan[MLX5_FS_VLAN_DEPTH]; 197 struct ib_counters *counters; 198 }; 199 200 #define MLX5_DECLARE_FLOW_ACT(name) \ 201 struct mlx5_flow_act name = { .action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST,\ 202 .reformat_id = 0, \ 203 .modify_id = 0, \ 204 .flags = 0, } 205 206 /* Single destination per rule. 207 * Group ID is implied by the match criteria. 208 */ 209 struct mlx5_flow_handle * 210 mlx5_add_flow_rules(struct mlx5_flow_table *ft, 211 const struct mlx5_flow_spec *spec, 212 struct mlx5_flow_act *flow_act, 213 struct mlx5_flow_destination *dest, 214 int num_dest); 215 void mlx5_del_flow_rules(struct mlx5_flow_handle *fr); 216 217 int mlx5_modify_rule_destination(struct mlx5_flow_handle *handler, 218 struct mlx5_flow_destination *new_dest, 219 struct mlx5_flow_destination *old_dest); 220 221 struct mlx5_fc *mlx5_fc_create(struct mlx5_core_dev *dev, bool aging); 222 void mlx5_fc_destroy(struct mlx5_core_dev *dev, struct mlx5_fc *counter); 223 void mlx5_fc_query_cached(struct mlx5_fc *counter, 224 u64 *bytes, u64 *packets, u64 *lastuse); 225 int mlx5_fc_query(struct mlx5_core_dev *dev, struct mlx5_fc *counter, 226 u64 *packets, u64 *bytes); 227 u32 mlx5_fc_id(struct mlx5_fc *counter); 228 229 int mlx5_fs_add_rx_underlay_qpn(struct mlx5_core_dev *dev, u32 underlay_qpn); 230 int mlx5_fs_remove_rx_underlay_qpn(struct mlx5_core_dev *dev, u32 underlay_qpn); 231 232 int mlx5_modify_header_alloc(struct mlx5_core_dev *dev, 233 u8 namespace, u8 num_actions, 234 void *modify_actions, u32 *modify_header_id); 235 void mlx5_modify_header_dealloc(struct mlx5_core_dev *dev, 236 u32 modify_header_id); 237 238 int mlx5_packet_reformat_alloc(struct mlx5_core_dev *dev, 239 int reformat_type, 240 size_t size, 241 void *reformat_data, 242 enum mlx5_flow_namespace_type namespace, 243 u32 *packet_reformat_id); 244 void mlx5_packet_reformat_dealloc(struct mlx5_core_dev *dev, 245 u32 packet_reformat_id); 246 247 #endif 248