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 u8 action; /* MLX5_FLOW_CONTEXT_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 num_types; 101 } autogroup; 102 unsigned int max_fte; 103 unsigned int level; 104 uint32_t id; 105 u16 vport; 106 enum fs_ft_type type; 107 struct fs_star_rule star_rule; 108 unsigned int shared_refcount; 109 }; 110 111 enum fs_prio_flags { 112 MLX5_CORE_FS_PRIO_SHARED = 1 113 }; 114 115 struct fs_prio { 116 struct fs_base base; 117 struct list_head objs; /* each object is a namespace or ft */ 118 unsigned int max_ft; 119 unsigned int num_ft; 120 unsigned int max_ns; 121 unsigned int prio; 122 /*When create shared flow table, this lock should be taken*/ 123 struct mutex shared_lock; 124 u8 flags; 125 }; 126 127 struct mlx5_flow_namespace { 128 /* parent == NULL => root ns */ 129 struct fs_base base; 130 /* sorted by priority number */ 131 struct list_head prios; /* list of fs_prios */ 132 struct list_head list_notifiers; 133 struct rw_semaphore notifiers_rw_sem; 134 struct rw_semaphore dests_rw_sem; 135 }; 136 137 struct mlx5_flow_root_namespace { 138 struct mlx5_flow_namespace ns; 139 struct mlx5_flow_table *ft_level_0; 140 enum fs_ft_type table_type; 141 struct mlx5_core_dev *dev; 142 struct mlx5_flow_table *root_ft; 143 /* When chaining flow-tables, this lock should be taken */ 144 struct mutex fs_chain_lock; 145 }; 146 147 struct mlx5_flow_group { 148 struct fs_base base; 149 struct list_head ftes; 150 struct mlx5_core_fs_mask mask; 151 uint32_t start_index; 152 uint32_t max_ftes; 153 uint32_t num_ftes; 154 uint32_t id; 155 }; 156 157 struct mlx5_flow_handler { 158 struct list_head list; 159 rule_event_fn add_dst_cb; 160 rule_event_fn del_dst_cb; 161 void *client_context; 162 struct mlx5_flow_namespace *ns; 163 }; 164 165 struct fs_client_priv_data { 166 struct mlx5_flow_handler *fs_handler; 167 struct list_head list; 168 void *client_dst_data; 169 }; 170 171 struct mlx5_modify_hdr { 172 enum mlx5_flow_namespace_type ns_type; 173 u32 id; 174 }; 175 176 struct mlx5_pkt_reformat { 177 enum mlx5_flow_namespace_type ns_type; 178 int reformat_type; /* from mlx5_ifc */ 179 u32 id; 180 }; 181 182 void _fs_remove_node(struct kref *kref); 183 #define fs_get_obj(v, _base) {v = container_of((_base), typeof(*v), base); } 184 #define fs_get_parent(v, child) {v = (child)->base.parent ? \ 185 container_of((child)->base.parent, \ 186 typeof(*v), base) : NULL; } 187 188 #define fs_list_for_each_entry(pos, cond, root) \ 189 list_for_each_entry(pos, root, base.list) \ 190 if (!(cond)) {} else 191 192 #define fs_list_for_each_entry_continue(pos, cond, root) \ 193 list_for_each_entry_continue(pos, root, base.list) \ 194 if (!(cond)) {} else 195 196 #define fs_list_for_each_entry_reverse(pos, cond, root) \ 197 list_for_each_entry_reverse(pos, root, base.list) \ 198 if (!(cond)) {} else 199 200 #define fs_list_for_each_entry_continue_reverse(pos, cond, root) \ 201 list_for_each_entry_continue_reverse(pos, root, base.list) \ 202 if (!(cond)) {} else 203 204 #define fs_for_each_ft(pos, prio) \ 205 fs_list_for_each_entry(pos, (pos)->base.type == FS_TYPE_FLOW_TABLE, \ 206 &(prio)->objs) 207 208 #define fs_for_each_ft_reverse(pos, prio) \ 209 fs_list_for_each_entry_reverse(pos, \ 210 (pos)->base.type == FS_TYPE_FLOW_TABLE, \ 211 &(prio)->objs) 212 213 #define fs_for_each_ns(pos, prio) \ 214 fs_list_for_each_entry(pos, \ 215 (pos)->base.type == FS_TYPE_NAMESPACE, \ 216 &(prio)->objs) 217 218 #define fs_for_each_ns_or_ft_reverse(pos, prio) \ 219 list_for_each_entry_reverse(pos, &(prio)->objs, list) \ 220 if (!((pos)->type == FS_TYPE_NAMESPACE || \ 221 (pos)->type == FS_TYPE_FLOW_TABLE)) {} else 222 223 #define fs_for_each_ns_or_ft(pos, prio) \ 224 list_for_each_entry(pos, &(prio)->objs, list) \ 225 if (!((pos)->type == FS_TYPE_NAMESPACE || \ 226 (pos)->type == FS_TYPE_FLOW_TABLE)) {} else 227 228 #define fs_for_each_ns_or_ft_continue_reverse(pos, prio) \ 229 list_for_each_entry_continue_reverse(pos, &(prio)->objs, list) \ 230 if (!((pos)->type == FS_TYPE_NAMESPACE || \ 231 (pos)->type == FS_TYPE_FLOW_TABLE)) {} else 232 233 #define fs_for_each_ns_or_ft_continue(pos, prio) \ 234 list_for_each_entry_continue(pos, &(prio)->objs, list) \ 235 if (!((pos)->type == FS_TYPE_NAMESPACE || \ 236 (pos)->type == FS_TYPE_FLOW_TABLE)) {} else 237 238 #define fs_for_each_prio(pos, ns) \ 239 fs_list_for_each_entry(pos, (pos)->base.type == FS_TYPE_PRIO, \ 240 &(ns)->prios) 241 242 #define fs_for_each_prio_reverse(pos, ns) \ 243 fs_list_for_each_entry_reverse(pos, (pos)->base.type == FS_TYPE_PRIO, \ 244 &(ns)->prios) 245 246 #define fs_for_each_prio_continue(pos, ns) \ 247 fs_list_for_each_entry_continue(pos, (pos)->base.type == FS_TYPE_PRIO, \ 248 &(ns)->prios) 249 250 #define fs_for_each_prio_continue_reverse(pos, ns) \ 251 fs_list_for_each_entry_continue_reverse(pos, \ 252 (pos)->base.type == FS_TYPE_PRIO, \ 253 &(ns)->prios) 254 255 #define fs_for_each_fg(pos, ft) \ 256 fs_list_for_each_entry(pos, (pos)->base.type == FS_TYPE_FLOW_GROUP, \ 257 &(ft)->fgs) 258 259 #define fs_for_each_fte(pos, fg) \ 260 fs_list_for_each_entry(pos, (pos)->base.type == FS_TYPE_FLOW_ENTRY, \ 261 &(fg)->ftes) 262 #define fs_for_each_dst(pos, fte) \ 263 fs_list_for_each_entry(pos, (pos)->base.type == FS_TYPE_FLOW_DEST, \ 264 &(fte)->dests) 265 266 int mlx5_cmd_fs_create_ft(struct mlx5_core_dev *dev, 267 u16 vport, enum fs_ft_type type, unsigned int level, 268 unsigned int log_size, const char *name, unsigned int *table_id); 269 270 int mlx5_cmd_fs_destroy_ft(struct mlx5_core_dev *dev, 271 u16 vport, 272 enum fs_ft_type type, unsigned int table_id); 273 274 int mlx5_cmd_fs_create_fg(struct mlx5_core_dev *dev, 275 u32 *in, 276 u16 vport, 277 enum fs_ft_type type, unsigned int table_id, 278 unsigned int *group_id); 279 280 int mlx5_cmd_fs_destroy_fg(struct mlx5_core_dev *dev, 281 u16 vport, 282 enum fs_ft_type type, unsigned int table_id, 283 unsigned int group_id); 284 285 286 int mlx5_cmd_fs_set_fte(struct mlx5_core_dev *dev, 287 u16 vport, 288 enum fs_fte_status *fte_status, 289 u32 *match_val, 290 enum fs_ft_type type, unsigned int table_id, 291 unsigned int index, unsigned int group_id, 292 struct mlx5_flow_act *flow_act, 293 unsigned short action, int dest_size, 294 struct list_head *dests); /* mlx5_flow_desination */ 295 296 int mlx5_cmd_fs_delete_fte(struct mlx5_core_dev *dev, 297 u16 vport, 298 enum fs_fte_status *fte_status, 299 enum fs_ft_type type, unsigned int table_id, 300 unsigned int index); 301 302 int mlx5_cmd_update_root_ft(struct mlx5_core_dev *dev, 303 enum fs_ft_type type, 304 unsigned int id); 305 306 int mlx5_init_fs(struct mlx5_core_dev *dev); 307 void mlx5_cleanup_fs(struct mlx5_core_dev *dev); 308 void mlx5_fc_update_sampling_interval(struct mlx5_core_dev *dev, 309 unsigned long interval); 310 311 int mlx5_cmd_modify_header_alloc(struct mlx5_core_dev *dev, 312 enum mlx5_flow_namespace_type namespace, 313 u8 num_actions, 314 void *modify_actions, 315 struct mlx5_modify_hdr *modify_hdr); 316 void mlx5_cmd_modify_header_dealloc(struct mlx5_core_dev *dev, 317 struct mlx5_modify_hdr *modify_hdr); 318 int mlx5_cmd_packet_reformat_alloc(struct mlx5_core_dev *dev, 319 struct mlx5_pkt_reformat_params *params, 320 enum mlx5_flow_namespace_type namespace, 321 struct mlx5_pkt_reformat *pkt_reformat); 322 void mlx5_cmd_packet_reformat_dealloc(struct mlx5_core_dev *dev, 323 struct mlx5_pkt_reformat *pkt_reformat); 324 #endif 325