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_KERNEL, 58 MLX5_FLOW_NAMESPACE_LEFTOVERS, 59 MLX5_FLOW_NAMESPACE_SNIFFER_RX, 60 MLX5_FLOW_NAMESPACE_SNIFFER_TX, 61 MLX5_FLOW_NAMESPACE_FDB, 62 MLX5_FLOW_NAMESPACE_ESW_EGRESS, 63 MLX5_FLOW_NAMESPACE_ESW_INGRESS, 64 }; 65 66 struct mlx5_flow_table; 67 struct mlx5_flow_group; 68 struct mlx5_flow_rule; 69 struct mlx5_flow_namespace; 70 71 struct mlx5_flow_spec { 72 u8 match_criteria_enable; 73 u32 match_criteria[MLX5_ST_SZ_DW(fte_match_param)]; 74 u32 match_value[MLX5_ST_SZ_DW(fte_match_param)]; 75 }; 76 77 struct mlx5_flow_destination { 78 u32 type; 79 union { 80 u32 tir_num; 81 struct mlx5_flow_table *ft; 82 u32 vport_num; 83 }; 84 }; 85 86 #define FT_NAME_STR_SZ 20 87 #define LEFTOVERS_RULE_NUM 2 88 static inline void build_leftovers_ft_param(char *name, 89 unsigned int *priority, 90 int *n_ent, 91 int *n_grp) 92 { 93 snprintf(name, FT_NAME_STR_SZ, "leftovers"); 94 *priority = 0; /*Priority of leftovers_prio-0*/ 95 *n_ent = LEFTOVERS_RULE_NUM + 1; /*1: star rules*/ 96 *n_grp = LEFTOVERS_RULE_NUM; 97 } 98 99 static inline bool outer_header_zero(u32 *match_criteria) 100 { 101 int size = MLX5_ST_SZ_BYTES(fte_match_param); 102 char *outer_headers_c = MLX5_ADDR_OF(fte_match_param, match_criteria, 103 outer_headers); 104 105 return outer_headers_c[0] == 0 && !memcmp(outer_headers_c, 106 outer_headers_c + 1, 107 size - 1); 108 } 109 110 struct mlx5_flow_namespace * 111 mlx5_get_flow_namespace(struct mlx5_core_dev *dev, 112 enum mlx5_flow_namespace_type type); 113 114 /* The underlying implementation create two more entries for 115 * chaining flow tables. the user should be aware that if he pass 116 * max_num_ftes as 2^N it will result in doubled size flow table 117 */ 118 struct mlx5_flow_table * 119 mlx5_create_auto_grouped_flow_table(struct mlx5_flow_namespace *ns, 120 int prio, 121 const char *name, 122 int num_flow_table_entries, 123 int max_num_groups); 124 125 struct mlx5_flow_table * 126 mlx5_create_vport_flow_table(struct mlx5_flow_namespace *ns, 127 u16 vport, 128 int prio, 129 const char *name, 130 int num_flow_table_entries); 131 132 struct mlx5_flow_table * 133 mlx5_create_flow_table(struct mlx5_flow_namespace *ns, 134 int prio, 135 const char *name, 136 int num_flow_table_entries); 137 int mlx5_destroy_flow_table(struct mlx5_flow_table *ft); 138 139 /* inbox should be set with the following values: 140 * start_flow_index 141 * end_flow_index 142 * match_criteria_enable 143 * match_criteria 144 */ 145 struct mlx5_flow_group * 146 mlx5_create_flow_group(struct mlx5_flow_table *ft, u32 *in); 147 void mlx5_destroy_flow_group(struct mlx5_flow_group *fg); 148 149 /* Single destination per rule. 150 * Group ID is implied by the match criteria. 151 */ 152 struct mlx5_flow_rule * 153 mlx5_add_flow_rule(struct mlx5_flow_table *ft, 154 u8 match_criteria_enable, 155 u32 *match_criteria, 156 u32 *match_value, 157 u32 action, 158 u32 flow_tag, 159 struct mlx5_flow_destination *dest); 160 void mlx5_del_flow_rule(struct mlx5_flow_rule *fr); 161 162 /*The following API is for sniffer*/ 163 typedef int (*rule_event_fn)(struct mlx5_flow_rule *rule, 164 bool ctx_changed, 165 void *client_data, 166 void *context); 167 168 struct mlx5_flow_handler; 169 170 struct flow_client_priv_data; 171 172 void mlx5e_sniffer_roce_mode_notify( 173 struct mlx5_core_dev *mdev, 174 int action); 175 176 int mlx5_set_rule_private_data(struct mlx5_flow_rule *rule, struct 177 mlx5_flow_handler *handler, void 178 *client_data); 179 180 struct mlx5_flow_handler *mlx5_register_rule_notifier(struct mlx5_core_dev *dev, 181 enum mlx5_flow_namespace_type ns_type, 182 rule_event_fn add_cb, 183 rule_event_fn del_cb, 184 void *context); 185 186 void mlx5_unregister_rule_notifier(struct mlx5_flow_handler *handler); 187 188 void mlx5_flow_iterate_existing_rules(struct mlx5_flow_namespace *ns, 189 rule_event_fn cb, 190 void *context); 191 192 void mlx5_get_match_criteria(u32 *match_criteria, 193 struct mlx5_flow_rule *rule); 194 195 void mlx5_get_match_value(u32 *match_value, 196 struct mlx5_flow_rule *rule); 197 198 u8 mlx5_get_match_criteria_enable(struct mlx5_flow_rule *rule); 199 200 struct mlx5_flow_rules_list *get_roce_flow_rules(u8 roce_mode); 201 202 void mlx5_del_flow_rules_list(struct mlx5_flow_rules_list *rules_list); 203 204 struct mlx5_flow_rules_list { 205 struct list_head head; 206 }; 207 208 struct mlx5_flow_rule_node { 209 struct list_head list; 210 u32 match_criteria[MLX5_ST_SZ_DW(fte_match_param)]; 211 u32 match_value[MLX5_ST_SZ_DW(fte_match_param)]; 212 u8 match_criteria_enable; 213 }; 214 215 struct mlx5_core_fs_mask { 216 u8 match_criteria_enable; 217 u32 match_criteria[MLX5_ST_SZ_DW(fte_match_param)]; 218 }; 219 220 bool fs_match_exact_val( 221 struct mlx5_core_fs_mask *mask, 222 void *val1, 223 void *val2); 224 225 bool fs_match_exact_mask( 226 u8 match_criteria_enable1, 227 u8 match_criteria_enable2, 228 void *mask1, 229 void *mask2); 230 /**********end API for sniffer**********/ 231 232 #endif 233