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 }; 51 52 #define LEFTOVERS_RULE_NUM 2 53 static inline void build_leftovers_ft_param(int *priority, 54 int *n_ent, 55 int *n_grp) 56 { 57 *priority = 0; /* Priority of leftovers_prio-0 */ 58 *n_ent = LEFTOVERS_RULE_NUM; 59 *n_grp = LEFTOVERS_RULE_NUM; 60 } 61 62 enum mlx5_flow_namespace_type { 63 MLX5_FLOW_NAMESPACE_BYPASS, 64 MLX5_FLOW_NAMESPACE_LAG, 65 MLX5_FLOW_NAMESPACE_OFFLOADS, 66 MLX5_FLOW_NAMESPACE_ETHTOOL, 67 MLX5_FLOW_NAMESPACE_KERNEL, 68 MLX5_FLOW_NAMESPACE_LEFTOVERS, 69 MLX5_FLOW_NAMESPACE_ANCHOR, 70 MLX5_FLOW_NAMESPACE_FDB, 71 MLX5_FLOW_NAMESPACE_ESW_EGRESS, 72 MLX5_FLOW_NAMESPACE_ESW_INGRESS, 73 MLX5_FLOW_NAMESPACE_SNIFFER_RX, 74 MLX5_FLOW_NAMESPACE_SNIFFER_TX, 75 MLX5_FLOW_NAMESPACE_EGRESS, 76 MLX5_FLOW_NAMESPACE_RDMA_RX, 77 }; 78 79 enum { 80 FDB_BYPASS_PATH, 81 FDB_FAST_PATH, 82 FDB_SLOW_PATH, 83 }; 84 85 struct mlx5_flow_table; 86 struct mlx5_flow_group; 87 struct mlx5_flow_namespace; 88 struct mlx5_flow_handle; 89 90 struct mlx5_flow_spec { 91 u8 match_criteria_enable; 92 u32 match_criteria[MLX5_ST_SZ_DW(fte_match_param)]; 93 u32 match_value[MLX5_ST_SZ_DW(fte_match_param)]; 94 }; 95 96 enum { 97 MLX5_FLOW_DEST_VPORT_VHCA_ID = BIT(0), 98 MLX5_FLOW_DEST_VPORT_REFORMAT_ID = BIT(1), 99 }; 100 101 struct mlx5_flow_destination { 102 enum mlx5_flow_destination_type type; 103 union { 104 u32 tir_num; 105 u32 ft_num; 106 struct mlx5_flow_table *ft; 107 u32 counter_id; 108 struct { 109 u16 num; 110 u16 vhca_id; 111 u32 reformat_id; 112 u8 flags; 113 } vport; 114 }; 115 }; 116 117 struct mlx5_flow_namespace * 118 mlx5_get_fdb_sub_ns(struct mlx5_core_dev *dev, int n); 119 struct mlx5_flow_namespace * 120 mlx5_get_flow_namespace(struct mlx5_core_dev *dev, 121 enum mlx5_flow_namespace_type type); 122 struct mlx5_flow_namespace * 123 mlx5_get_flow_vport_acl_namespace(struct mlx5_core_dev *dev, 124 enum mlx5_flow_namespace_type type, 125 int vport); 126 127 struct mlx5_flow_table * 128 mlx5_create_auto_grouped_flow_table(struct mlx5_flow_namespace *ns, 129 int prio, 130 int num_flow_table_entries, 131 int max_num_groups, 132 u32 level, 133 u32 flags); 134 135 struct mlx5_flow_table_attr { 136 int prio; 137 int max_fte; 138 u32 level; 139 u32 flags; 140 }; 141 142 struct mlx5_flow_table * 143 mlx5_create_flow_table(struct mlx5_flow_namespace *ns, 144 struct mlx5_flow_table_attr *ft_attr); 145 146 struct mlx5_flow_table * 147 mlx5_create_vport_flow_table(struct mlx5_flow_namespace *ns, 148 int prio, 149 int num_flow_table_entries, 150 u32 level, u16 vport); 151 struct mlx5_flow_table *mlx5_create_lag_demux_flow_table( 152 struct mlx5_flow_namespace *ns, 153 int prio, u32 level); 154 int mlx5_destroy_flow_table(struct mlx5_flow_table *ft); 155 156 /* inbox should be set with the following values: 157 * start_flow_index 158 * end_flow_index 159 * match_criteria_enable 160 * match_criteria 161 */ 162 struct mlx5_flow_group * 163 mlx5_create_flow_group(struct mlx5_flow_table *ft, u32 *in); 164 void mlx5_destroy_flow_group(struct mlx5_flow_group *fg); 165 166 struct mlx5_fs_vlan { 167 u16 ethtype; 168 u16 vid; 169 u8 prio; 170 }; 171 172 #define MLX5_FS_VLAN_DEPTH 2 173 174 enum { 175 FLOW_ACT_HAS_TAG = BIT(0), 176 FLOW_ACT_NO_APPEND = BIT(1), 177 }; 178 179 struct mlx5_flow_act { 180 u32 action; 181 u32 flow_tag; 182 u32 reformat_id; 183 u32 modify_id; 184 uintptr_t esp_id; 185 u32 flags; 186 struct mlx5_fs_vlan vlan[MLX5_FS_VLAN_DEPTH]; 187 struct ib_counters *counters; 188 }; 189 190 #define MLX5_DECLARE_FLOW_ACT(name) \ 191 struct mlx5_flow_act name = { .action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST,\ 192 .flow_tag = MLX5_FS_DEFAULT_FLOW_TAG, \ 193 .reformat_id = 0, \ 194 .modify_id = 0, \ 195 .flags = 0, } 196 197 /* Single destination per rule. 198 * Group ID is implied by the match criteria. 199 */ 200 struct mlx5_flow_handle * 201 mlx5_add_flow_rules(struct mlx5_flow_table *ft, 202 struct mlx5_flow_spec *spec, 203 struct mlx5_flow_act *flow_act, 204 struct mlx5_flow_destination *dest, 205 int num_dest); 206 void mlx5_del_flow_rules(struct mlx5_flow_handle *fr); 207 208 int mlx5_modify_rule_destination(struct mlx5_flow_handle *handler, 209 struct mlx5_flow_destination *new_dest, 210 struct mlx5_flow_destination *old_dest); 211 212 struct mlx5_fc *mlx5_fc_create(struct mlx5_core_dev *dev, bool aging); 213 void mlx5_fc_destroy(struct mlx5_core_dev *dev, struct mlx5_fc *counter); 214 void mlx5_fc_query_cached(struct mlx5_fc *counter, 215 u64 *bytes, u64 *packets, u64 *lastuse); 216 int mlx5_fc_query(struct mlx5_core_dev *dev, struct mlx5_fc *counter, 217 u64 *packets, u64 *bytes); 218 u32 mlx5_fc_id(struct mlx5_fc *counter); 219 220 int mlx5_fs_add_rx_underlay_qpn(struct mlx5_core_dev *dev, u32 underlay_qpn); 221 int mlx5_fs_remove_rx_underlay_qpn(struct mlx5_core_dev *dev, u32 underlay_qpn); 222 223 int mlx5_modify_header_alloc(struct mlx5_core_dev *dev, 224 u8 namespace, u8 num_actions, 225 void *modify_actions, u32 *modify_header_id); 226 void mlx5_modify_header_dealloc(struct mlx5_core_dev *dev, 227 u32 modify_header_id); 228 229 int mlx5_packet_reformat_alloc(struct mlx5_core_dev *dev, 230 int reformat_type, 231 size_t size, 232 void *reformat_data, 233 enum mlx5_flow_namespace_type namespace, 234 u32 *packet_reformat_id); 235 void mlx5_packet_reformat_dealloc(struct mlx5_core_dev *dev, 236 u32 packet_reformat_id); 237 238 #endif 239