1 /*- 2 * Copyright (c) 2013-2017, Mellanox Technologies, Ltd. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS `AS IS' AND 14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 16 * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE 17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 19 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23 * SUCH DAMAGE. 24 * 25 * $FreeBSD$ 26 */ 27 28 #ifndef _MLX5_FS_ 29 #define _MLX5_FS_ 30 31 #include <linux/list.h> 32 33 #include <dev/mlx5/mlx5_ifc.h> 34 #include <dev/mlx5/device.h> 35 #include <dev/mlx5/driver.h> 36 37 enum { 38 MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_PRIO = 1 << 16, 39 }; 40 41 /*Flow tag*/ 42 enum { 43 MLX5_FS_DEFAULT_FLOW_TAG = 0xFFFFFF, 44 MLX5_FS_ETH_FLOW_TAG = 0xFFFFFE, 45 MLX5_FS_SNIFFER_FLOW_TAG = 0xFFFFFD, 46 }; 47 48 enum { 49 MLX5_FS_FLOW_TAG_MASK = 0xFFFFFF, 50 }; 51 52 #define FS_MAX_TYPES 10 53 #define FS_MAX_ENTRIES 32000U 54 55 enum mlx5_flow_namespace_type { 56 MLX5_FLOW_NAMESPACE_BYPASS, 57 MLX5_FLOW_NAMESPACE_OFFLOADS, 58 MLX5_FLOW_NAMESPACE_KERNEL, 59 MLX5_FLOW_NAMESPACE_LEFTOVERS, 60 MLX5_FLOW_NAMESPACE_SNIFFER_RX, 61 MLX5_FLOW_NAMESPACE_SNIFFER_TX, 62 MLX5_FLOW_NAMESPACE_FDB, 63 MLX5_FLOW_NAMESPACE_ESW_EGRESS, 64 MLX5_FLOW_NAMESPACE_ESW_INGRESS, 65 }; 66 67 struct mlx5_flow_table; 68 struct mlx5_flow_group; 69 struct mlx5_flow_rule; 70 struct mlx5_flow_namespace; 71 72 struct mlx5_flow_spec { 73 u8 match_criteria_enable; 74 u32 match_criteria[MLX5_ST_SZ_DW(fte_match_param)]; 75 u32 match_value[MLX5_ST_SZ_DW(fte_match_param)]; 76 }; 77 78 struct mlx5_flow_destination { 79 u32 type; 80 union { 81 u32 tir_num; 82 struct mlx5_flow_table *ft; 83 u32 vport_num; 84 }; 85 }; 86 87 #define FT_NAME_STR_SZ 20 88 #define LEFTOVERS_RULE_NUM 2 89 static inline void build_leftovers_ft_param(char *name, 90 unsigned int *priority, 91 int *n_ent, 92 int *n_grp) 93 { 94 snprintf(name, FT_NAME_STR_SZ, "leftovers"); 95 *priority = 0; /*Priority of leftovers_prio-0*/ 96 *n_ent = LEFTOVERS_RULE_NUM + 1; /*1: star rules*/ 97 *n_grp = LEFTOVERS_RULE_NUM; 98 } 99 100 static inline bool outer_header_zero(u32 *match_criteria) 101 { 102 int size = MLX5_ST_SZ_BYTES(fte_match_param); 103 char *outer_headers_c = MLX5_ADDR_OF(fte_match_param, match_criteria, 104 outer_headers); 105 106 return outer_headers_c[0] == 0 && !memcmp(outer_headers_c, 107 outer_headers_c + 1, 108 size - 1); 109 } 110 111 struct mlx5_flow_namespace * 112 mlx5_get_flow_namespace(struct mlx5_core_dev *dev, 113 enum mlx5_flow_namespace_type type); 114 115 /* The underlying implementation create two more entries for 116 * chaining flow tables. the user should be aware that if he pass 117 * max_num_ftes as 2^N it will result in doubled size flow table 118 */ 119 struct mlx5_flow_table * 120 mlx5_create_auto_grouped_flow_table(struct mlx5_flow_namespace *ns, 121 int prio, 122 const char *name, 123 int num_flow_table_entries, 124 int max_num_groups); 125 126 struct mlx5_flow_table * 127 mlx5_create_vport_flow_table(struct mlx5_flow_namespace *ns, 128 u16 vport, 129 int prio, 130 const char *name, 131 int num_flow_table_entries); 132 133 struct mlx5_flow_table * 134 mlx5_create_flow_table(struct mlx5_flow_namespace *ns, 135 int prio, 136 const char *name, 137 int num_flow_table_entries); 138 int mlx5_destroy_flow_table(struct mlx5_flow_table *ft); 139 140 /* inbox should be set with the following values: 141 * start_flow_index 142 * end_flow_index 143 * match_criteria_enable 144 * match_criteria 145 */ 146 struct mlx5_flow_group * 147 mlx5_create_flow_group(struct mlx5_flow_table *ft, u32 *in); 148 void mlx5_destroy_flow_group(struct mlx5_flow_group *fg); 149 150 /* Single destination per rule. 151 * Group ID is implied by the match criteria. 152 */ 153 struct mlx5_flow_rule * 154 mlx5_add_flow_rule(struct mlx5_flow_table *ft, 155 u8 match_criteria_enable, 156 u32 *match_criteria, 157 u32 *match_value, 158 u32 action, 159 u32 flow_tag, 160 struct mlx5_flow_destination *dest); 161 void mlx5_del_flow_rule(struct mlx5_flow_rule *fr); 162 163 /*The following API is for sniffer*/ 164 typedef int (*rule_event_fn)(struct mlx5_flow_rule *rule, 165 bool ctx_changed, 166 void *client_data, 167 void *context); 168 169 struct mlx5_flow_handler; 170 171 struct flow_client_priv_data; 172 173 void mlx5e_sniffer_roce_mode_notify( 174 struct mlx5_core_dev *mdev, 175 int action); 176 177 int mlx5_set_rule_private_data(struct mlx5_flow_rule *rule, struct 178 mlx5_flow_handler *handler, void 179 *client_data); 180 181 struct mlx5_flow_handler *mlx5_register_rule_notifier(struct mlx5_core_dev *dev, 182 enum mlx5_flow_namespace_type ns_type, 183 rule_event_fn add_cb, 184 rule_event_fn del_cb, 185 void *context); 186 187 void mlx5_unregister_rule_notifier(struct mlx5_flow_handler *handler); 188 189 void mlx5_flow_iterate_existing_rules(struct mlx5_flow_namespace *ns, 190 rule_event_fn cb, 191 void *context); 192 193 void mlx5_get_match_criteria(u32 *match_criteria, 194 struct mlx5_flow_rule *rule); 195 196 void mlx5_get_match_value(u32 *match_value, 197 struct mlx5_flow_rule *rule); 198 199 u8 mlx5_get_match_criteria_enable(struct mlx5_flow_rule *rule); 200 201 struct mlx5_flow_rules_list *get_roce_flow_rules(u8 roce_mode); 202 203 void mlx5_del_flow_rules_list(struct mlx5_flow_rules_list *rules_list); 204 205 struct mlx5_flow_rules_list { 206 struct list_head head; 207 }; 208 209 struct mlx5_flow_rule_node { 210 struct list_head list; 211 u32 match_criteria[MLX5_ST_SZ_DW(fte_match_param)]; 212 u32 match_value[MLX5_ST_SZ_DW(fte_match_param)]; 213 u8 match_criteria_enable; 214 }; 215 216 struct mlx5_core_fs_mask { 217 u8 match_criteria_enable; 218 u32 match_criteria[MLX5_ST_SZ_DW(fte_match_param)]; 219 }; 220 221 bool fs_match_exact_val( 222 struct mlx5_core_fs_mask *mask, 223 void *val1, 224 void *val2); 225 226 bool fs_match_exact_mask( 227 u8 match_criteria_enable1, 228 u8 match_criteria_enable2, 229 void *mask1, 230 void *mask2); 231 /**********end API for sniffer**********/ 232 233 #endif 234