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 26 #ifndef _MLX5_FS_CORE_ 27 #define _MLX5_FS_CORE_ 28 29 #include <asm/atomic.h> 30 #include <linux/completion.h> 31 #include <linux/mutex.h> 32 #include <dev/mlx5/fs.h> 33 34 enum fs_type { 35 FS_TYPE_NAMESPACE, 36 FS_TYPE_PRIO, 37 FS_TYPE_FLOW_TABLE, 38 FS_TYPE_FLOW_GROUP, 39 FS_TYPE_FLOW_ENTRY, 40 FS_TYPE_FLOW_DEST 41 }; 42 43 enum fs_ft_type { 44 FS_FT_NIC_RX = 0x0, 45 FS_FT_ESW_EGRESS_ACL = 0x2, 46 FS_FT_ESW_INGRESS_ACL = 0x3, 47 FS_FT_FDB = 0X4, 48 FS_FT_SNIFFER_RX = 0x5, 49 FS_FT_SNIFFER_TX = 0x6 50 }; 51 52 enum fs_fte_status { 53 FS_FTE_STATUS_EXISTING = 1UL << 0, 54 }; 55 56 /* Should always be the first variable in the struct */ 57 struct fs_base { 58 struct list_head list; 59 struct fs_base *parent; 60 enum fs_type type; 61 struct kref refcount; 62 /* lock the node for writing and traversing */ 63 struct mutex lock; 64 struct completion complete; 65 atomic_t users_refcount; 66 const char *name; 67 }; 68 69 struct mlx5_flow_rule { 70 struct fs_base base; 71 struct mlx5_flow_destination dest_attr; 72 struct list_head clients_data; 73 /*protect clients lits*/ 74 struct mutex clients_lock; 75 }; 76 77 struct fs_fte { 78 struct fs_base base; 79 u32 val[MLX5_ST_SZ_DW(fte_match_param)]; 80 uint32_t dests_size; 81 struct list_head dests; 82 uint32_t index; /* index in ft */ 83 struct mlx5_flow_act flow_act; 84 u32 sw_action; /* enum mlx5_rule_fwd_action */ 85 enum fs_fte_status status; 86 }; 87 88 struct fs_star_rule { 89 struct mlx5_flow_group *fg; 90 struct fs_fte *fte; 91 }; 92 93 struct mlx5_flow_table { 94 struct fs_base base; 95 /* sorted list by start_index */ 96 struct list_head fgs; 97 struct { 98 bool active; 99 unsigned int max_types; 100 unsigned int group_size; 101 unsigned int num_types; 102 unsigned int max_fte; 103 } autogroup; 104 unsigned int max_fte; 105 unsigned int level; 106 uint32_t id; 107 u16 vport; 108 enum fs_ft_type type; 109 struct fs_star_rule star_rule; 110 unsigned int shared_refcount; 111 }; 112 113 enum fs_prio_flags { 114 MLX5_CORE_FS_PRIO_SHARED = 1 115 }; 116 117 struct fs_prio { 118 struct fs_base base; 119 struct list_head objs; /* each object is a namespace or ft */ 120 unsigned int max_ft; 121 unsigned int num_ft; 122 unsigned int max_ns; 123 unsigned int prio; 124 /*When create shared flow table, this lock should be taken*/ 125 struct mutex shared_lock; 126 u8 flags; 127 }; 128 129 struct mlx5_flow_namespace { 130 /* parent == NULL => root ns */ 131 struct fs_base base; 132 /* sorted by priority number */ 133 struct list_head prios; /* list of fs_prios */ 134 struct list_head list_notifiers; 135 struct rw_semaphore notifiers_rw_sem; 136 struct rw_semaphore dests_rw_sem; 137 }; 138 139 struct mlx5_flow_root_namespace { 140 struct mlx5_flow_namespace ns; 141 struct mlx5_flow_table *ft_level_0; 142 enum fs_ft_type table_type; 143 struct mlx5_core_dev *dev; 144 struct mlx5_flow_table *root_ft; 145 /* When chaining flow-tables, this lock should be taken */ 146 struct mutex fs_chain_lock; 147 }; 148 149 struct mlx5_flow_group { 150 struct fs_base base; 151 struct list_head ftes; 152 struct mlx5_core_fs_mask mask; 153 uint32_t start_index; 154 uint32_t max_ftes; 155 uint32_t num_ftes; 156 uint32_t id; 157 }; 158 159 struct mlx5_flow_handler { 160 struct list_head list; 161 rule_event_fn add_dst_cb; 162 rule_event_fn del_dst_cb; 163 void *client_context; 164 struct mlx5_flow_namespace *ns; 165 }; 166 167 struct fs_client_priv_data { 168 struct mlx5_flow_handler *fs_handler; 169 struct list_head list; 170 void *client_dst_data; 171 }; 172 173 struct mlx5_modify_hdr { 174 enum mlx5_flow_namespace_type ns_type; 175 u32 id; 176 }; 177 178 struct mlx5_pkt_reformat { 179 enum mlx5_flow_namespace_type ns_type; 180 int reformat_type; /* from mlx5_ifc */ 181 u32 id; 182 }; 183 184 void _fs_remove_node(struct kref *kref); 185 #define fs_get_obj(v, _base) {v = container_of((_base), typeof(*v), base); } 186 #define fs_get_parent(v, child) {v = (child)->base.parent ? \ 187 container_of((child)->base.parent, \ 188 typeof(*v), base) : NULL; } 189 190 #define fs_list_for_each_entry(pos, cond, root) \ 191 list_for_each_entry(pos, root, base.list) \ 192 if (!(cond)) {} else 193 194 #define fs_list_for_each_entry_continue(pos, cond, root) \ 195 list_for_each_entry_continue(pos, root, base.list) \ 196 if (!(cond)) {} else 197 198 #define fs_list_for_each_entry_reverse(pos, cond, root) \ 199 list_for_each_entry_reverse(pos, root, base.list) \ 200 if (!(cond)) {} else 201 202 #define fs_list_for_each_entry_continue_reverse(pos, cond, root) \ 203 list_for_each_entry_continue_reverse(pos, root, base.list) \ 204 if (!(cond)) {} else 205 206 #define fs_for_each_ft(pos, prio) \ 207 fs_list_for_each_entry(pos, (pos)->base.type == FS_TYPE_FLOW_TABLE, \ 208 &(prio)->objs) 209 210 #define fs_for_each_ft_reverse(pos, prio) \ 211 fs_list_for_each_entry_reverse(pos, \ 212 (pos)->base.type == FS_TYPE_FLOW_TABLE, \ 213 &(prio)->objs) 214 215 #define fs_for_each_ns(pos, prio) \ 216 fs_list_for_each_entry(pos, \ 217 (pos)->base.type == FS_TYPE_NAMESPACE, \ 218 &(prio)->objs) 219 220 #define fs_for_each_ns_or_ft_reverse(pos, prio) \ 221 list_for_each_entry_reverse(pos, &(prio)->objs, list) \ 222 if (!((pos)->type == FS_TYPE_NAMESPACE || \ 223 (pos)->type == FS_TYPE_FLOW_TABLE)) {} else 224 225 #define fs_for_each_ns_or_ft(pos, prio) \ 226 list_for_each_entry(pos, &(prio)->objs, list) \ 227 if (!((pos)->type == FS_TYPE_NAMESPACE || \ 228 (pos)->type == FS_TYPE_FLOW_TABLE)) {} else 229 230 #define fs_for_each_ns_or_ft_continue_reverse(pos, prio) \ 231 list_for_each_entry_continue_reverse(pos, &(prio)->objs, list) \ 232 if (!((pos)->type == FS_TYPE_NAMESPACE || \ 233 (pos)->type == FS_TYPE_FLOW_TABLE)) {} else 234 235 #define fs_for_each_ns_or_ft_continue(pos, prio) \ 236 list_for_each_entry_continue(pos, &(prio)->objs, list) \ 237 if (!((pos)->type == FS_TYPE_NAMESPACE || \ 238 (pos)->type == FS_TYPE_FLOW_TABLE)) {} else 239 240 #define fs_for_each_prio(pos, ns) \ 241 fs_list_for_each_entry(pos, (pos)->base.type == FS_TYPE_PRIO, \ 242 &(ns)->prios) 243 244 #define fs_for_each_prio_reverse(pos, ns) \ 245 fs_list_for_each_entry_reverse(pos, (pos)->base.type == FS_TYPE_PRIO, \ 246 &(ns)->prios) 247 248 #define fs_for_each_prio_continue(pos, ns) \ 249 fs_list_for_each_entry_continue(pos, (pos)->base.type == FS_TYPE_PRIO, \ 250 &(ns)->prios) 251 252 #define fs_for_each_prio_continue_reverse(pos, ns) \ 253 fs_list_for_each_entry_continue_reverse(pos, \ 254 (pos)->base.type == FS_TYPE_PRIO, \ 255 &(ns)->prios) 256 257 #define fs_for_each_fg(pos, ft) \ 258 fs_list_for_each_entry(pos, (pos)->base.type == FS_TYPE_FLOW_GROUP, \ 259 &(ft)->fgs) 260 261 #define fs_for_each_fte(pos, fg) \ 262 fs_list_for_each_entry(pos, (pos)->base.type == FS_TYPE_FLOW_ENTRY, \ 263 &(fg)->ftes) 264 #define fs_for_each_dst(pos, fte) \ 265 fs_list_for_each_entry(pos, (pos)->base.type == FS_TYPE_FLOW_DEST, \ 266 &(fte)->dests) 267 268 int mlx5_cmd_fs_create_ft(struct mlx5_core_dev *dev, 269 u16 vport, enum fs_ft_type type, unsigned int level, 270 unsigned int log_size, const char *name, unsigned int *table_id); 271 272 int mlx5_cmd_fs_destroy_ft(struct mlx5_core_dev *dev, 273 u16 vport, 274 enum fs_ft_type type, unsigned int table_id); 275 276 int mlx5_cmd_fs_create_fg(struct mlx5_core_dev *dev, 277 u32 *in, 278 u16 vport, 279 enum fs_ft_type type, unsigned int table_id, 280 unsigned int *group_id); 281 282 int mlx5_cmd_fs_destroy_fg(struct mlx5_core_dev *dev, 283 u16 vport, 284 enum fs_ft_type type, unsigned int table_id, 285 unsigned int group_id); 286 287 288 int mlx5_cmd_fs_set_fte(struct mlx5_core_dev *dev, 289 u16 vport, 290 enum fs_fte_status *fte_status, 291 u32 *match_val, 292 enum fs_ft_type type, unsigned int table_id, 293 unsigned int index, unsigned int group_id, 294 struct mlx5_flow_act *flow_act, 295 u32 sw_action, int dest_size, 296 struct list_head *dests); /* mlx5_flow_desination */ 297 298 int mlx5_cmd_fs_delete_fte(struct mlx5_core_dev *dev, 299 u16 vport, 300 enum fs_fte_status *fte_status, 301 enum fs_ft_type type, unsigned int table_id, 302 unsigned int index); 303 304 int mlx5_cmd_update_root_ft(struct mlx5_core_dev *dev, 305 enum fs_ft_type type, 306 unsigned int id); 307 308 int mlx5_init_fs(struct mlx5_core_dev *dev); 309 void mlx5_cleanup_fs(struct mlx5_core_dev *dev); 310 void mlx5_fc_update_sampling_interval(struct mlx5_core_dev *dev, 311 unsigned long interval); 312 313 int mlx5_cmd_modify_header_alloc(struct mlx5_core_dev *dev, 314 enum mlx5_flow_namespace_type namespace, 315 u8 num_actions, 316 void *modify_actions, 317 struct mlx5_modify_hdr *modify_hdr); 318 void mlx5_cmd_modify_header_dealloc(struct mlx5_core_dev *dev, 319 struct mlx5_modify_hdr *modify_hdr); 320 int mlx5_cmd_packet_reformat_alloc(struct mlx5_core_dev *dev, 321 struct mlx5_pkt_reformat_params *params, 322 enum mlx5_flow_namespace_type namespace, 323 struct mlx5_pkt_reformat *pkt_reformat); 324 void mlx5_cmd_packet_reformat_dealloc(struct mlx5_core_dev *dev, 325 struct mlx5_pkt_reformat *pkt_reformat); 326 int mlx5_init_fc_stats(struct mlx5_core_dev *dev); 327 void mlx5_cleanup_fc_stats(struct mlx5_core_dev *dev); 328 void mlx5_fc_queue_stats_work(struct mlx5_core_dev *dev, 329 struct delayed_work *dwork, 330 unsigned long delay); 331 #endif 332