lib/librte_flow_classify/rte_flow_classify.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2017 Intel Corporation
   3  */
   4
   5 #include <rte_string_fns.h>
   6 #include <rte_compat.h>
   7 #include <rte_flow_classify.h>
   8 #include "rte_flow_classify_parse.h"
   9 #include <rte_flow_driver.h>
  10 #include <rte_table_acl.h>
  11 #include <stdbool.h>
  12
  13 int librte_flow_classify_logtype;
  14
  15 static uint32_t unique_id = 1;
  16
  17 enum rte_flow_classify_table_type table_type
  18         = RTE_FLOW_CLASSIFY_TABLE_TYPE_NONE;
  19
  20 struct rte_flow_classify_table_entry {
  21         /* meta-data for classify rule */
  22         uint32_t rule_id;
  23
  24         /* Flow action */
  25         struct classify_action action;
  26 };
  27
  28 struct rte_cls_table {
  29         /* Input parameters */
  30         struct rte_table_ops ops;
  31         uint32_t entry_size;
  32         enum rte_flow_classify_table_type type;
  33
  34         /* Handle to the low-level table object */
  35         void *h_table;
  36 };
  37
  38 #define RTE_FLOW_CLASSIFIER_MAX_NAME_SZ 256
  39
  40 struct rte_flow_classifier {
  41         /* Input parameters */
  42         char name[RTE_FLOW_CLASSIFIER_MAX_NAME_SZ];
  43         int socket_id;
  44
  45         /* Internal */
  46         /* ntuple_filter */
  47         struct rte_eth_ntuple_filter ntuple_filter;
  48
  49         /* classifier tables */
  50         struct rte_cls_table tables[RTE_FLOW_CLASSIFY_TABLE_MAX];
  51         uint32_t table_mask;
  52         uint32_t num_tables;
  53
  54         uint16_t nb_pkts;
  55         struct rte_flow_classify_table_entry
  56                 *entries[RTE_PORT_IN_BURST_SIZE_MAX];
  57 } __rte_cache_aligned;
  58
  59 enum {
  60         PROTO_FIELD_IPV4,
  61         SRC_FIELD_IPV4,
  62         DST_FIELD_IPV4,
  63         SRCP_FIELD_IPV4,
  64         DSTP_FIELD_IPV4,
  65         NUM_FIELDS_IPV4
  66 };
  67
  68 struct acl_keys {
  69         struct rte_table_acl_rule_add_params key_add; /* add key */
  70         struct rte_table_acl_rule_delete_params key_del; /* delete key */
  71 };
  72
  73 struct classify_rules {
  74         enum rte_flow_classify_rule_type type;
  75         union {
  76                 struct rte_flow_classify_ipv4_5tuple ipv4_5tuple;
  77         } u;
  78 };
  79
  80 struct rte_flow_classify_rule {
  81         uint32_t id; /* unique ID of classify rule */
  82         enum rte_flow_classify_table_type tbl_type; /* rule table */
  83         struct classify_rules rules; /* union of rules */
  84         union {
  85                 struct acl_keys key;
  86         } u;
  87         int key_found;   /* rule key found in table */
  88         struct rte_flow_classify_table_entry entry;  /* rule meta data */
  89         void *entry_ptr; /* handle to the table entry for rule meta data */
  90 };
  91
  92 int
  93 rte_flow_classify_validate(
  94                    struct rte_flow_classifier *cls,
  95                    const struct rte_flow_attr *attr,
  96                    const struct rte_flow_item pattern[],
  97                    const struct rte_flow_action actions[],
  98                    struct rte_flow_error *error)
  99 {
 100         struct rte_flow_item *items;
 101         parse_filter_t parse_filter;
 102         uint32_t item_num = 0;
 103         uint32_t i = 0;
 104         int ret;
 105
 106         if (error == NULL)
 107                 return -EINVAL;
 108
 109         if (cls == NULL) {
 110                 RTE_FLOW_CLASSIFY_LOG(ERR,
 111                         "%s: rte_flow_classifier parameter is NULL\n",
 112                         __func__);
 113                 return -EINVAL;
 114         }
 115
 116         if (!attr) {
 117                 rte_flow_error_set(error, EINVAL,
 118                                    RTE_FLOW_ERROR_TYPE_ATTR,
 119                                    NULL, "NULL attribute.");
 120                 return -EINVAL;
 121         }
 122
 123         if (!pattern) {
 124                 rte_flow_error_set(error,
 125                         EINVAL, RTE_FLOW_ERROR_TYPE_ITEM_NUM,
 126                         NULL, "NULL pattern.");
 127                 return -EINVAL;
 128         }
 129
 130         if (!actions) {
 131                 rte_flow_error_set(error, EINVAL,
 132                                    RTE_FLOW_ERROR_TYPE_ACTION_NUM,
 133                                    NULL, "NULL action.");
 134                 return -EINVAL;
 135         }
 136
 137         memset(&cls->ntuple_filter, 0, sizeof(cls->ntuple_filter));
 138
 139         /* Get the non-void item number of pattern */
 140         while ((pattern + i)->type != RTE_FLOW_ITEM_TYPE_END) {
 141                 if ((pattern + i)->type != RTE_FLOW_ITEM_TYPE_VOID)
 142                         item_num++;
 143                 i++;
 144         }
 145         item_num++;
 146
 147         items = malloc(item_num * sizeof(struct rte_flow_item));
 148         if (!items) {
 149                 rte_flow_error_set(error, ENOMEM,
 150                                 RTE_FLOW_ERROR_TYPE_ITEM_NUM,
 151                                 NULL, "No memory for pattern items.");
 152                 return -ENOMEM;
 153         }
 154
 155         memset(items, 0, item_num * sizeof(struct rte_flow_item));
 156         classify_pattern_skip_void_item(items, pattern);
 157
 158         parse_filter = classify_find_parse_filter_func(items);
 159         if (!parse_filter) {
 160                 rte_flow_error_set(error, EINVAL,
 161                                 RTE_FLOW_ERROR_TYPE_ITEM,
 162                                 pattern, "Unsupported pattern");
 163                 free(items);
 164                 return -EINVAL;
 165         }
 166
 167         ret = parse_filter(attr, items, actions, &cls->ntuple_filter, error);
 168         free(items);
 169         return ret;
 170 }
 171
 172
 173 #define uint32_t_to_char(ip, a, b, c, d) do {\
 174                 *a = (unsigned char)(ip >> 24 & 0xff);\
 175                 *b = (unsigned char)(ip >> 16 & 0xff);\
 176                 *c = (unsigned char)(ip >> 8 & 0xff);\
 177                 *d = (unsigned char)(ip & 0xff);\
 178         } while (0)
 179
 180 static inline void
 181 print_acl_ipv4_key_add(struct rte_table_acl_rule_add_params *key)
 182 {
 183         unsigned char a, b, c, d;
 184
 185         printf("%s:    0x%02hhx/0x%hhx ", __func__,
 186                 key->field_value[PROTO_FIELD_IPV4].value.u8,
 187                 key->field_value[PROTO_FIELD_IPV4].mask_range.u8);
 188
 189         uint32_t_to_char(key->field_value[SRC_FIELD_IPV4].value.u32,
 190                         &a, &b, &c, &d);
 191         printf(" %hhu.%hhu.%hhu.%hhu/0x%x ", a, b, c, d,
 192                         key->field_value[SRC_FIELD_IPV4].mask_range.u32);
 193
 194         uint32_t_to_char(key->field_value[DST_FIELD_IPV4].value.u32,
 195                         &a, &b, &c, &d);
 196         printf("%hhu.%hhu.%hhu.%hhu/0x%x ", a, b, c, d,
 197                         key->field_value[DST_FIELD_IPV4].mask_range.u32);
 198
 199         printf("%hu : 0x%x %hu : 0x%x",
 200                 key->field_value[SRCP_FIELD_IPV4].value.u16,
 201                 key->field_value[SRCP_FIELD_IPV4].mask_range.u16,
 202                 key->field_value[DSTP_FIELD_IPV4].value.u16,
 203                 key->field_value[DSTP_FIELD_IPV4].mask_range.u16);
 204
 205         printf(" priority: 0x%x\n", key->priority);
 206 }
 207
 208 static inline void
 209 print_acl_ipv4_key_delete(struct rte_table_acl_rule_delete_params *key)
 210 {
 211         unsigned char a, b, c, d;
 212
 213         printf("%s: 0x%02hhx/0x%hhx ", __func__,
 214                 key->field_value[PROTO_FIELD_IPV4].value.u8,
 215                 key->field_value[PROTO_FIELD_IPV4].mask_range.u8);
 216
 217         uint32_t_to_char(key->field_value[SRC_FIELD_IPV4].value.u32,
 218                         &a, &b, &c, &d);
 219         printf(" %hhu.%hhu.%hhu.%hhu/0x%x ", a, b, c, d,
 220                         key->field_value[SRC_FIELD_IPV4].mask_range.u32);
 221
 222         uint32_t_to_char(key->field_value[DST_FIELD_IPV4].value.u32,
 223                         &a, &b, &c, &d);
 224         printf("%hhu.%hhu.%hhu.%hhu/0x%x ", a, b, c, d,
 225                         key->field_value[DST_FIELD_IPV4].mask_range.u32);
 226
 227         printf("%hu : 0x%x %hu : 0x%x\n",
 228                 key->field_value[SRCP_FIELD_IPV4].value.u16,
 229                 key->field_value[SRCP_FIELD_IPV4].mask_range.u16,
 230                 key->field_value[DSTP_FIELD_IPV4].value.u16,
 231                 key->field_value[DSTP_FIELD_IPV4].mask_range.u16);
 232 }
 233
 234 static int
 235 rte_flow_classifier_check_params(struct rte_flow_classifier_params *params)
 236 {
 237         if (params == NULL) {
 238                 RTE_FLOW_CLASSIFY_LOG(ERR,
 239                         "%s: Incorrect value for parameter params\n", __func__);
 240                 return -EINVAL;
 241         }
 242
 243         /* name */
 244         if (params->name == NULL) {
 245                 RTE_FLOW_CLASSIFY_LOG(ERR,
 246                         "%s: Incorrect value for parameter name\n", __func__);
 247                 return -EINVAL;
 248         }
 249
 250         /* socket */
 251         if (params->socket_id < 0) {
 252                 RTE_FLOW_CLASSIFY_LOG(ERR,
 253                         "%s: Incorrect value for parameter socket_id\n",
 254                         __func__);
 255                 return -EINVAL;
 256         }
 257
 258         return 0;
 259 }
 260
 261 struct rte_flow_classifier *
 262 rte_flow_classifier_create(struct rte_flow_classifier_params *params)
 263 {
 264         struct rte_flow_classifier *cls;
 265         int ret;
 266
 267         /* Check input parameters */
 268         ret = rte_flow_classifier_check_params(params);
 269         if (ret != 0) {
 270                 RTE_FLOW_CLASSIFY_LOG(ERR,
 271                         "%s: flow classifier params check failed (%d)\n",
 272                         __func__, ret);
 273                 return NULL;
 274         }
 275
 276         /* Allocate memory for the flow classifier */
 277         cls = rte_zmalloc_socket("FLOW_CLASSIFIER",
 278                         sizeof(struct rte_flow_classifier),
 279                         RTE_CACHE_LINE_SIZE, params->socket_id);
 280
 281         if (cls == NULL) {
 282                 RTE_FLOW_CLASSIFY_LOG(ERR,
 283                         "%s: flow classifier memory allocation failed\n",
 284                         __func__);
 285                 return NULL;
 286         }
 287
 288         /* Save input parameters */
 289         strlcpy(cls->name, params->name, RTE_FLOW_CLASSIFIER_MAX_NAME_SZ);
 290
 291         cls->socket_id = params->socket_id;
 292
 293         return cls;
 294 }
 295
 296 static void
 297 rte_flow_classify_table_free(struct rte_cls_table *table)
 298 {
 299         if (table->ops.f_free != NULL)
 300                 table->ops.f_free(table->h_table);
 301 }
 302
 303 int
 304 rte_flow_classifier_free(struct rte_flow_classifier *cls)
 305 {
 306         uint32_t i;
 307
 308         /* Check input parameters */
 309         if (cls == NULL) {
 310                 RTE_FLOW_CLASSIFY_LOG(ERR,
 311                         "%s: rte_flow_classifier parameter is NULL\n",
 312                         __func__);
 313                 return -EINVAL;
 314         }
 315
 316         /* Free tables */
 317         for (i = 0; i < cls->num_tables; i++) {
 318                 struct rte_cls_table *table = &cls->tables[i];
 319
 320                 rte_flow_classify_table_free(table);
 321         }
 322
 323         /* Free flow classifier memory */
 324         rte_free(cls);
 325
 326         return 0;
 327 }
 328
 329 static int
 330 rte_table_check_params(struct rte_flow_classifier *cls,
 331                 struct rte_flow_classify_table_params *params)
 332 {
 333         if (cls == NULL) {
 334                 RTE_FLOW_CLASSIFY_LOG(ERR,
 335                         "%s: flow classifier parameter is NULL\n",
 336                         __func__);
 337                 return -EINVAL;
 338         }
 339         if (params == NULL) {
 340                 RTE_FLOW_CLASSIFY_LOG(ERR, "%s: params parameter is NULL\n",
 341                         __func__);
 342                 return -EINVAL;
 343         }
 344
 345         /* ops */
 346         if (params->ops == NULL) {
 347                 RTE_FLOW_CLASSIFY_LOG(ERR, "%s: params->ops is NULL\n",
 348                         __func__);
 349                 return -EINVAL;
 350         }
 351
 352         if (params->ops->f_create == NULL) {
 353                 RTE_FLOW_CLASSIFY_LOG(ERR,
 354                         "%s: f_create function pointer is NULL\n", __func__);
 355                 return -EINVAL;
 356         }
 357
 358         if (params->ops->f_lookup == NULL) {
 359                 RTE_FLOW_CLASSIFY_LOG(ERR,
 360                         "%s: f_lookup function pointer is NULL\n", __func__);
 361                 return -EINVAL;
 362         }
 363
 364         /* De we have room for one more table? */
 365         if (cls->num_tables == RTE_FLOW_CLASSIFY_TABLE_MAX) {
 366                 RTE_FLOW_CLASSIFY_LOG(ERR,
 367                         "%s: Incorrect value for num_tables parameter\n",
 368                         __func__);
 369                 return -EINVAL;
 370         }
 371
 372         return 0;
 373 }
 374
 375 int
 376 rte_flow_classify_table_create(struct rte_flow_classifier *cls,
 377         struct rte_flow_classify_table_params *params)
 378 {
 379         struct rte_cls_table *table;
 380         void *h_table;
 381         uint32_t entry_size;
 382         int ret;
 383
 384         /* Check input arguments */
 385         ret = rte_table_check_params(cls, params);
 386         if (ret != 0)
 387                 return ret;
 388
 389         /* calculate table entry size */
 390         entry_size = sizeof(struct rte_flow_classify_table_entry);
 391
 392         /* Create the table */
 393         h_table = params->ops->f_create(params->arg_create, cls->socket_id,
 394                 entry_size);
 395         if (h_table == NULL) {
 396                 RTE_FLOW_CLASSIFY_LOG(ERR, "%s: Table creation failed\n",
 397                         __func__);
 398                 return -EINVAL;
 399         }
 400
 401         /* Commit current table to the classifier */
 402         table = &cls->tables[cls->num_tables];
 403         table->type = params->type;
 404         cls->num_tables++;
 405
 406         /* Save input parameters */
 407         memcpy(&table->ops, params->ops, sizeof(struct rte_table_ops));
 408
 409         /* Initialize table internal data structure */
 410         table->entry_size = entry_size;
 411         table->h_table = h_table;
 412
 413         return 0;
 414 }
 415
 416 static struct rte_flow_classify_rule *
 417 allocate_acl_ipv4_5tuple_rule(struct rte_flow_classifier *cls)
 418 {
 419         struct rte_flow_classify_rule *rule;
 420         int log_level;
 421
 422         rule = malloc(sizeof(struct rte_flow_classify_rule));
 423         if (!rule)
 424                 return rule;
 425
 426         memset(rule, 0, sizeof(struct rte_flow_classify_rule));
 427         rule->id = unique_id++;
 428         rule->rules.type = RTE_FLOW_CLASSIFY_RULE_TYPE_IPV4_5TUPLE;
 429
 430         /* key add values */
 431         rule->u.key.key_add.priority = cls->ntuple_filter.priority;
 432         rule->u.key.key_add.field_value[PROTO_FIELD_IPV4].mask_range.u8 =
 433                         cls->ntuple_filter.proto_mask;
 434         rule->u.key.key_add.field_value[PROTO_FIELD_IPV4].value.u8 =
 435                         cls->ntuple_filter.proto;
 436         rule->rules.u.ipv4_5tuple.proto = cls->ntuple_filter.proto;
 437         rule->rules.u.ipv4_5tuple.proto_mask = cls->ntuple_filter.proto_mask;
 438
 439         rule->u.key.key_add.field_value[SRC_FIELD_IPV4].mask_range.u32 =
 440                         cls->ntuple_filter.src_ip_mask;
 441         rule->u.key.key_add.field_value[SRC_FIELD_IPV4].value.u32 =
 442                         cls->ntuple_filter.src_ip;
 443         rule->rules.u.ipv4_5tuple.src_ip_mask = cls->ntuple_filter.src_ip_mask;
 444         rule->rules.u.ipv4_5tuple.src_ip = cls->ntuple_filter.src_ip;
 445
 446         rule->u.key.key_add.field_value[DST_FIELD_IPV4].mask_range.u32 =
 447                         cls->ntuple_filter.dst_ip_mask;
 448         rule->u.key.key_add.field_value[DST_FIELD_IPV4].value.u32 =
 449                         cls->ntuple_filter.dst_ip;
 450         rule->rules.u.ipv4_5tuple.dst_ip_mask = cls->ntuple_filter.dst_ip_mask;
 451         rule->rules.u.ipv4_5tuple.dst_ip = cls->ntuple_filter.dst_ip;
 452
 453         rule->u.key.key_add.field_value[SRCP_FIELD_IPV4].mask_range.u16 =
 454                         cls->ntuple_filter.src_port_mask;
 455         rule->u.key.key_add.field_value[SRCP_FIELD_IPV4].value.u16 =
 456                         cls->ntuple_filter.src_port;
 457         rule->rules.u.ipv4_5tuple.src_port_mask =
 458                         cls->ntuple_filter.src_port_mask;
 459         rule->rules.u.ipv4_5tuple.src_port = cls->ntuple_filter.src_port;
 460
 461         rule->u.key.key_add.field_value[DSTP_FIELD_IPV4].mask_range.u16 =
 462                         cls->ntuple_filter.dst_port_mask;
 463         rule->u.key.key_add.field_value[DSTP_FIELD_IPV4].value.u16 =
 464                         cls->ntuple_filter.dst_port;
 465         rule->rules.u.ipv4_5tuple.dst_port_mask =
 466                         cls->ntuple_filter.dst_port_mask;
 467         rule->rules.u.ipv4_5tuple.dst_port = cls->ntuple_filter.dst_port;
 468
 469         log_level = rte_log_get_level(librte_flow_classify_logtype);
 470
 471         if (log_level == RTE_LOG_DEBUG)
 472                 print_acl_ipv4_key_add(&rule->u.key.key_add);
 473
 474         /* key delete values */
 475         memcpy(&rule->u.key.key_del.field_value[PROTO_FIELD_IPV4],
 476                &rule->u.key.key_add.field_value[PROTO_FIELD_IPV4],
 477                NUM_FIELDS_IPV4 * sizeof(struct rte_acl_field));
 478
 479         if (log_level == RTE_LOG_DEBUG)
 480                 print_acl_ipv4_key_delete(&rule->u.key.key_del);
 481
 482         return rule;
 483 }
 484
 485 struct rte_flow_classify_rule *
 486 rte_flow_classify_table_entry_add(struct rte_flow_classifier *cls,
 487                 const struct rte_flow_attr *attr,
 488                 const struct rte_flow_item pattern[],
 489                 const struct rte_flow_action actions[],
 490                 int *key_found,
 491                 struct rte_flow_error *error)
 492 {
 493         struct rte_flow_classify_rule *rule;
 494         struct rte_flow_classify_table_entry *table_entry;
 495         struct classify_action *action;
 496         uint32_t i;
 497         int ret;
 498
 499         if (!error)
 500                 return NULL;
 501
 502         if (key_found == NULL) {
 503                 rte_flow_error_set(error, EINVAL,
 504                                 RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
 505                                 NULL, "NULL key_found.");
 506                 return NULL;
 507         }
 508
 509         /* parse attr, pattern and actions */
 510         ret = rte_flow_classify_validate(cls, attr, pattern, actions, error);
 511         if (ret < 0)
 512                 return NULL;
 513
 514         switch (table_type) {
 515         case RTE_FLOW_CLASSIFY_TABLE_ACL_IP4_5TUPLE:
 516                 rule = allocate_acl_ipv4_5tuple_rule(cls);
 517                 if (!rule)
 518                         return NULL;
 519                 rule->tbl_type = table_type;
 520                 cls->table_mask |= table_type;
 521                 break;
 522         default:
 523                 return NULL;
 524         }
 525
 526         action = classify_get_flow_action();
 527         table_entry = &rule->entry;
 528         table_entry->rule_id = rule->id;
 529         table_entry->action.action_mask = action->action_mask;
 530
 531         /* Copy actions */
 532         if (action->action_mask & (1LLU << RTE_FLOW_ACTION_TYPE_COUNT)) {
 533                 memcpy(&table_entry->action.act.counter, &action->act.counter,
 534                                 sizeof(table_entry->action.act.counter));
 535         }
 536         if (action->action_mask & (1LLU << RTE_FLOW_ACTION_TYPE_MARK)) {
 537                 memcpy(&table_entry->action.act.mark, &action->act.mark,
 538                                 sizeof(table_entry->action.act.mark));
 539         }
 540
 541         for (i = 0; i < cls->num_tables; i++) {
 542                 struct rte_cls_table *table = &cls->tables[i];
 543
 544                 if (table->type == table_type) {
 545                         if (table->ops.f_add != NULL) {
 546                                 ret = table->ops.f_add(
 547                                         table->h_table,
 548                                         &rule->u.key.key_add,
 549                                         &rule->entry,
 550                                         &rule->key_found,
 551                                         &rule->entry_ptr);
 552                                 if (ret) {
 553                                         free(rule);
 554                                         return NULL;
 555                                 }
 556
 557                         *key_found = rule->key_found;
 558                         }
 559
 560                         return rule;
 561                 }
 562         }
 563         free(rule);
 564         return NULL;
 565 }
 566
 567 int
 568 rte_flow_classify_table_entry_delete(struct rte_flow_classifier *cls,
 569                 struct rte_flow_classify_rule *rule)
 570 {
 571         uint32_t i;
 572         int ret = -EINVAL;
 573
 574         if (!cls || !rule)
 575                 return ret;
 576         enum rte_flow_classify_table_type tbl_type = rule->tbl_type;
 577
 578         for (i = 0; i < cls->num_tables; i++) {
 579                 struct rte_cls_table *table = &cls->tables[i];
 580
 581                 if (table->type == tbl_type) {
 582                         if (table->ops.f_delete != NULL) {
 583                                 ret = table->ops.f_delete(table->h_table,
 584                                                 &rule->u.key.key_del,
 585                                                 &rule->key_found,
 586                                                 &rule->entry);
 587
 588                                 return ret;
 589                         }
 590                 }
 591         }
 592         free(rule);
 593         return ret;
 594 }
 595
 596 static int
 597 flow_classifier_lookup(struct rte_flow_classifier *cls,
 598                 struct rte_cls_table *table,
 599                 struct rte_mbuf **pkts,
 600                 const uint16_t nb_pkts)
 601 {
 602         int ret = -EINVAL;
 603         uint64_t pkts_mask;
 604         uint64_t lookup_hit_mask;
 605
 606         pkts_mask = RTE_LEN2MASK(nb_pkts, uint64_t);
 607         ret = table->ops.f_lookup(table->h_table,
 608                 pkts, pkts_mask, &lookup_hit_mask,
 609                 (void **)cls->entries);
 610
 611         if (!ret && lookup_hit_mask)
 612                 cls->nb_pkts = nb_pkts;
 613         else
 614                 cls->nb_pkts = 0;
 615
 616         return ret;
 617 }
 618
 619 static int
 620 action_apply(struct rte_flow_classifier *cls,
 621                 struct rte_flow_classify_rule *rule,
 622                 struct rte_flow_classify_stats *stats)
 623 {
 624         struct rte_flow_classify_ipv4_5tuple_stats *ntuple_stats;
 625         struct rte_flow_classify_table_entry *entry = &rule->entry;
 626         uint64_t count = 0;
 627         uint32_t action_mask = entry->action.action_mask;
 628         int i, ret = -EINVAL;
 629
 630         if (action_mask & (1LLU << RTE_FLOW_ACTION_TYPE_COUNT)) {
 631                 for (i = 0; i < cls->nb_pkts; i++) {
 632                         if (rule->id == cls->entries[i]->rule_id)
 633                                 count++;
 634                 }
 635                 if (count) {
 636                         ret = 0;
 637                         ntuple_stats = stats->stats;
 638                         ntuple_stats->counter1 = count;
 639                         ntuple_stats->ipv4_5tuple = rule->rules.u.ipv4_5tuple;
 640                 }
 641         }
 642         return ret;
 643 }
 644
 645 int
 646 rte_flow_classifier_query(struct rte_flow_classifier *cls,
 647                 struct rte_mbuf **pkts,
 648                 const uint16_t nb_pkts,
 649                 struct rte_flow_classify_rule *rule,
 650                 struct rte_flow_classify_stats *stats)
 651 {
 652         enum rte_flow_classify_table_type tbl_type;
 653         uint32_t i;
 654         int ret = -EINVAL;
 655
 656         if (!cls || !rule || !stats || !pkts  || nb_pkts == 0)
 657                 return ret;
 658
 659         tbl_type = rule->tbl_type;
 660         for (i = 0; i < cls->num_tables; i++) {
 661                 struct rte_cls_table *table = &cls->tables[i];
 662
 663                         if (table->type == tbl_type) {
 664                                 ret = flow_classifier_lookup(cls, table,
 665                                                 pkts, nb_pkts);
 666                                 if (!ret) {
 667                                         ret = action_apply(cls, rule, stats);
 668                                         return ret;
 669                                 }
 670                         }
 671         }
 672         return ret;
 673 }
 674
 675 RTE_INIT(librte_flow_classify_init_log)
 676 {
 677         librte_flow_classify_logtype =
 678                 rte_log_register("lib.flow_classify");
 679         if (librte_flow_classify_logtype >= 0)
 680                 rte_log_set_level(librte_flow_classify_logtype, RTE_LOG_INFO);
 681 }