examples/ip_pipeline/pipeline/pipeline_flow_classification_be.c

   1 /*-
   2  *   BSD LICENSE
   3  *
   4  *   Copyright(c) 2010-2016 Intel Corporation. All rights reserved.
   5  *   All rights reserved.
   6  *
   7  *   Redistribution and use in source and binary forms, with or without
   8  *   modification, are permitted provided that the following conditions
   9  *   are met:
  10  *
  11  *     * Redistributions of source code must retain the above copyright
  12  *       notice, this list of conditions and the following disclaimer.
  13  *     * Redistributions in binary form must reproduce the above copyright
  14  *       notice, this list of conditions and the following disclaimer in
  15  *       the documentation and/or other materials provided with the
  16  *       distribution.
  17  *     * Neither the name of Intel Corporation nor the names of its
  18  *       contributors may be used to endorse or promote products derived
  19  *       from this software without specific prior written permission.
  20  *
  21  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  22  *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  23  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  24  *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  25  *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  26  *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  27  *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  28  *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  29  *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  30  *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  31  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  32  */
  33
  34 #include <string.h>
  35
  36 #include <rte_common.h>
  37 #include <rte_malloc.h>
  38 #include <rte_table_hash.h>
  39 #include <rte_byteorder.h>
  40 #include <pipeline.h>
  41
  42 #include "pipeline_flow_classification_be.h"
  43 #include "pipeline_actions_common.h"
  44 #include "parser.h"
  45 #include "hash_func.h"
  46
  47 struct pipeline_flow_classification {
  48         struct pipeline p;
  49         pipeline_msg_req_handler custom_handlers[PIPELINE_FC_MSG_REQS];
  50
  51         uint32_t n_flows;
  52         uint32_t key_size;
  53         uint32_t flow_id;
  54
  55         uint32_t key_offset;
  56         uint32_t hash_offset;
  57         uint8_t key_mask[PIPELINE_FC_FLOW_KEY_MAX_SIZE];
  58         uint32_t key_mask_present;
  59         uint32_t flow_id_offset;
  60
  61 } __rte_cache_aligned;
  62
  63 static void *
  64 pipeline_fc_msg_req_custom_handler(struct pipeline *p, void *msg);
  65
  66 static pipeline_msg_req_handler handlers[] = {
  67         [PIPELINE_MSG_REQ_PING] =
  68                 pipeline_msg_req_ping_handler,
  69         [PIPELINE_MSG_REQ_STATS_PORT_IN] =
  70                 pipeline_msg_req_stats_port_in_handler,
  71         [PIPELINE_MSG_REQ_STATS_PORT_OUT] =
  72                 pipeline_msg_req_stats_port_out_handler,
  73         [PIPELINE_MSG_REQ_STATS_TABLE] =
  74                 pipeline_msg_req_stats_table_handler,
  75         [PIPELINE_MSG_REQ_PORT_IN_ENABLE] =
  76                 pipeline_msg_req_port_in_enable_handler,
  77         [PIPELINE_MSG_REQ_PORT_IN_DISABLE] =
  78                 pipeline_msg_req_port_in_disable_handler,
  79         [PIPELINE_MSG_REQ_CUSTOM] =
  80                 pipeline_fc_msg_req_custom_handler,
  81 };
  82
  83 static void *
  84 pipeline_fc_msg_req_add_handler(struct pipeline *p, void *msg);
  85
  86 static void *
  87 pipeline_fc_msg_req_add_bulk_handler(struct pipeline *p, void *msg);
  88
  89 static void *
  90 pipeline_fc_msg_req_del_handler(struct pipeline *p, void *msg);
  91
  92 static void *
  93 pipeline_fc_msg_req_add_default_handler(struct pipeline *p, void *msg);
  94
  95 static void *
  96 pipeline_fc_msg_req_del_default_handler(struct pipeline *p, void *msg);
  97
  98 static pipeline_msg_req_handler custom_handlers[] = {
  99         [PIPELINE_FC_MSG_REQ_FLOW_ADD] =
 100                 pipeline_fc_msg_req_add_handler,
 101         [PIPELINE_FC_MSG_REQ_FLOW_ADD_BULK] =
 102                 pipeline_fc_msg_req_add_bulk_handler,
 103         [PIPELINE_FC_MSG_REQ_FLOW_DEL] =
 104                 pipeline_fc_msg_req_del_handler,
 105         [PIPELINE_FC_MSG_REQ_FLOW_ADD_DEFAULT] =
 106                 pipeline_fc_msg_req_add_default_handler,
 107         [PIPELINE_FC_MSG_REQ_FLOW_DEL_DEFAULT] =
 108                 pipeline_fc_msg_req_del_default_handler,
 109 };
 110
 111 /*
 112  * Flow table
 113  */
 114 struct flow_table_entry {
 115         struct rte_pipeline_table_entry head;
 116
 117         uint32_t flow_id;
 118         uint32_t pad;
 119 };
 120
 121 rte_table_hash_op_hash_nomask hash_func[] = {
 122         hash_default_key8,
 123         hash_default_key16,
 124         hash_default_key24,
 125         hash_default_key32,
 126         hash_default_key40,
 127         hash_default_key48,
 128         hash_default_key56,
 129         hash_default_key64
 130 };
 131
 132 /*
 133  * Flow table AH - Write flow_id to packet meta-data
 134  */
 135 static inline void
 136 pkt_work_flow_id(
 137         struct rte_mbuf *pkt,
 138         struct rte_pipeline_table_entry *table_entry,
 139         void *arg)
 140 {
 141         struct pipeline_flow_classification *p_fc = arg;
 142         uint32_t *flow_id_ptr =
 143                 RTE_MBUF_METADATA_UINT32_PTR(pkt, p_fc->flow_id_offset);
 144         struct flow_table_entry *entry =
 145                 (struct flow_table_entry *) table_entry;
 146
 147         /* Read */
 148         uint32_t flow_id = entry->flow_id;
 149
 150         /* Compute */
 151
 152         /* Write */
 153         *flow_id_ptr = flow_id;
 154 }
 155
 156 static inline void
 157 pkt4_work_flow_id(
 158         struct rte_mbuf **pkts,
 159         struct rte_pipeline_table_entry **table_entries,
 160         void *arg)
 161 {
 162         struct pipeline_flow_classification *p_fc = arg;
 163
 164         uint32_t *flow_id_ptr0 =
 165                 RTE_MBUF_METADATA_UINT32_PTR(pkts[0], p_fc->flow_id_offset);
 166         uint32_t *flow_id_ptr1 =
 167                 RTE_MBUF_METADATA_UINT32_PTR(pkts[1], p_fc->flow_id_offset);
 168         uint32_t *flow_id_ptr2 =
 169                 RTE_MBUF_METADATA_UINT32_PTR(pkts[2], p_fc->flow_id_offset);
 170         uint32_t *flow_id_ptr3 =
 171                 RTE_MBUF_METADATA_UINT32_PTR(pkts[3], p_fc->flow_id_offset);
 172
 173         struct flow_table_entry *entry0 =
 174                 (struct flow_table_entry *) table_entries[0];
 175         struct flow_table_entry *entry1 =
 176                 (struct flow_table_entry *) table_entries[1];
 177         struct flow_table_entry *entry2 =
 178                 (struct flow_table_entry *) table_entries[2];
 179         struct flow_table_entry *entry3 =
 180                 (struct flow_table_entry *) table_entries[3];
 181
 182         /* Read */
 183         uint32_t flow_id0 = entry0->flow_id;
 184         uint32_t flow_id1 = entry1->flow_id;
 185         uint32_t flow_id2 = entry2->flow_id;
 186         uint32_t flow_id3 = entry3->flow_id;
 187
 188         /* Compute */
 189
 190         /* Write */
 191         *flow_id_ptr0 = flow_id0;
 192         *flow_id_ptr1 = flow_id1;
 193         *flow_id_ptr2 = flow_id2;
 194         *flow_id_ptr3 = flow_id3;
 195 }
 196
 197 PIPELINE_TABLE_AH_HIT(fc_table_ah_hit,
 198                 pkt_work_flow_id, pkt4_work_flow_id);
 199
 200 static rte_pipeline_table_action_handler_hit
 201 get_fc_table_ah_hit(struct pipeline_flow_classification *p)
 202 {
 203         if (p->flow_id)
 204                 return fc_table_ah_hit;
 205
 206         return NULL;
 207 }
 208
 209 /*
 210  * Argument parsing
 211  */
 212 static int
 213 pipeline_fc_parse_args(struct pipeline_flow_classification *p,
 214         struct pipeline_params *params)
 215 {
 216         uint32_t n_flows_present = 0;
 217         uint32_t key_offset_present = 0;
 218         uint32_t key_size_present = 0;
 219         uint32_t hash_offset_present = 0;
 220         uint32_t key_mask_present = 0;
 221         uint32_t flow_id_offset_present = 0;
 222
 223         uint32_t i;
 224         char key_mask_str[PIPELINE_FC_FLOW_KEY_MAX_SIZE * 2 + 1];
 225
 226         p->hash_offset = 0;
 227
 228         /* default values */
 229         p->flow_id = 0;
 230
 231         for (i = 0; i < params->n_args; i++) {
 232                 char *arg_name = params->args_name[i];
 233                 char *arg_value = params->args_value[i];
 234
 235                 /* n_flows */
 236                 if (strcmp(arg_name, "n_flows") == 0) {
 237                         int status;
 238
 239                         PIPELINE_PARSE_ERR_DUPLICATE(
 240                                 n_flows_present == 0, params->name,
 241                                 arg_name);
 242                         n_flows_present = 1;
 243
 244                         status = parser_read_uint32(&p->n_flows,
 245                                 arg_value);
 246                         PIPELINE_PARSE_ERR_INV_VAL(((status != -EINVAL) &&
 247                                 (p->n_flows != 0)), params->name,
 248                                 arg_name, arg_value);
 249                         PIPELINE_PARSE_ERR_OUT_RNG((status != -ERANGE),
 250                                 params->name, arg_name, arg_value);
 251
 252                         continue;
 253                 }
 254
 255                 /* key_offset */
 256                 if (strcmp(arg_name, "key_offset") == 0) {
 257                         int status;
 258
 259                         PIPELINE_PARSE_ERR_DUPLICATE(
 260                                 key_offset_present == 0, params->name,
 261                                 arg_name);
 262                         key_offset_present = 1;
 263
 264                         status = parser_read_uint32(&p->key_offset,
 265                                 arg_value);
 266                         PIPELINE_PARSE_ERR_INV_VAL((status != -EINVAL),
 267                                 params->name, arg_name, arg_value);
 268                         PIPELINE_PARSE_ERR_OUT_RNG((status != -ERANGE),
 269                                 params->name, arg_name, arg_value);
 270
 271                         continue;
 272                 }
 273
 274                 /* key_size */
 275                 if (strcmp(arg_name, "key_size") == 0) {
 276                         int status;
 277
 278                         PIPELINE_PARSE_ERR_DUPLICATE(
 279                                 key_size_present == 0, params->name,
 280                                 arg_name);
 281                         key_size_present = 1;
 282
 283                         status = parser_read_uint32(&p->key_size,
 284                                 arg_value);
 285                         PIPELINE_PARSE_ERR_INV_VAL(((status != -EINVAL) &&
 286                                 (p->key_size != 0) &&
 287                                 (p->key_size % 8 == 0)),
 288                                 params->name, arg_name, arg_value);
 289                         PIPELINE_PARSE_ERR_OUT_RNG(((status != -ERANGE) &&
 290                                 (p->key_size <=
 291                                 PIPELINE_FC_FLOW_KEY_MAX_SIZE)),
 292                                 params->name, arg_name, arg_value);
 293
 294                         continue;
 295                 }
 296
 297                 /* key_mask */
 298                 if (strcmp(arg_name, "key_mask") == 0) {
 299                         int mask_str_len = strlen(arg_value);
 300
 301                         PIPELINE_PARSE_ERR_DUPLICATE(
 302                                 key_mask_present == 0,
 303                                 params->name, arg_name);
 304                         key_mask_present = 1;
 305
 306                         PIPELINE_ARG_CHECK((mask_str_len <=
 307                                 (PIPELINE_FC_FLOW_KEY_MAX_SIZE * 2)),
 308                                 "Parse error in section \"%s\": entry "
 309                                 "\"%s\" is too long", params->name,
 310                                 arg_name);
 311
 312                         snprintf(key_mask_str, mask_str_len + 1, "%s",
 313                                 arg_value);
 314
 315                         continue;
 316                 }
 317
 318                 /* hash_offset */
 319                 if (strcmp(arg_name, "hash_offset") == 0) {
 320                         int status;
 321
 322                         PIPELINE_PARSE_ERR_DUPLICATE(
 323                                 hash_offset_present == 0, params->name,
 324                                 arg_name);
 325                         hash_offset_present = 1;
 326
 327                         status = parser_read_uint32(&p->hash_offset,
 328                                 arg_value);
 329                         PIPELINE_PARSE_ERR_INV_VAL((status != -EINVAL),
 330                                 params->name, arg_name, arg_value);
 331                         PIPELINE_PARSE_ERR_OUT_RNG((status != -ERANGE),
 332                                 params->name, arg_name, arg_value);
 333
 334                         continue;
 335                 }
 336
 337                 /* flow_id_offset */
 338                 if (strcmp(arg_name, "flowid_offset") == 0) {
 339                         int status;
 340
 341                         PIPELINE_PARSE_ERR_DUPLICATE(
 342                                 flow_id_offset_present == 0, params->name,
 343                                 arg_name);
 344                         flow_id_offset_present = 1;
 345
 346                         status = parser_read_uint32(&p->flow_id_offset,
 347                                 arg_value);
 348                         PIPELINE_PARSE_ERR_INV_VAL((status != -EINVAL),
 349                                 params->name, arg_name, arg_value);
 350                         PIPELINE_PARSE_ERR_OUT_RNG((status != -ERANGE),
 351                                 params->name, arg_name, arg_value);
 352
 353                         p->flow_id = 1;
 354
 355                         continue;
 356                 }
 357
 358                 /* Unknown argument */
 359                 PIPELINE_PARSE_ERR_INV_ENT(0, params->name, arg_name);
 360         }
 361
 362         /* Check that mandatory arguments are present */
 363         PIPELINE_PARSE_ERR_MANDATORY((n_flows_present), params->name,
 364                 "n_flows");
 365         PIPELINE_PARSE_ERR_MANDATORY((key_offset_present), params->name,
 366                 "key_offset");
 367         PIPELINE_PARSE_ERR_MANDATORY((key_size_present), params->name,
 368                 "key_size");
 369
 370         if (key_mask_present) {
 371                 uint32_t key_size = p->key_size;
 372                 int status;
 373
 374                 PIPELINE_ARG_CHECK(((key_size == 8) || (key_size == 16)),
 375                         "Parse error in section \"%s\": entry key_mask "
 376                         "only allowed for key_size of 8 or 16 bytes",
 377                         params->name);
 378
 379                 PIPELINE_ARG_CHECK((strlen(key_mask_str) ==
 380                         (key_size * 2)), "Parse error in section "
 381                         "\"%s\": key_mask should have exactly %u hex "
 382                         "digits", params->name, (key_size * 2));
 383
 384                 PIPELINE_ARG_CHECK((hash_offset_present == 0), "Parse "
 385                         "error in section \"%s\": entry hash_offset only "
 386                         "allowed when key_mask is not present",
 387                         params->name);
 388
 389                 status = parse_hex_string(key_mask_str, p->key_mask,
 390                         &p->key_size);
 391
 392                 PIPELINE_PARSE_ERR_INV_VAL(((status == 0) &&
 393                         (key_size == p->key_size)), params->name,
 394                         "key_mask", key_mask_str);
 395         }
 396
 397         p->key_mask_present = key_mask_present;
 398
 399         return 0;
 400 }
 401
 402 static void *pipeline_fc_init(struct pipeline_params *params,
 403         __rte_unused void *arg)
 404 {
 405         struct pipeline *p;
 406         struct pipeline_flow_classification *p_fc;
 407         uint32_t size, i;
 408
 409         /* Check input arguments */
 410         if (params == NULL)
 411                 return NULL;
 412
 413         /* Memory allocation */
 414         size = RTE_CACHE_LINE_ROUNDUP(
 415                 sizeof(struct pipeline_flow_classification));
 416         p = rte_zmalloc(NULL, size, RTE_CACHE_LINE_SIZE);
 417         if (p == NULL)
 418                 return NULL;
 419         p_fc = (struct pipeline_flow_classification *) p;
 420
 421         strcpy(p->name, params->name);
 422         p->log_level = params->log_level;
 423
 424         PLOG(p, HIGH, "Flow classification");
 425
 426         /* Parse arguments */
 427         if (pipeline_fc_parse_args(p_fc, params))
 428                 return NULL;
 429
 430         /* Pipeline */
 431         {
 432                 struct rte_pipeline_params pipeline_params = {
 433                         .name = params->name,
 434                         .socket_id = params->socket_id,
 435                         .offset_port_id = 0,
 436                 };
 437
 438                 p->p = rte_pipeline_create(&pipeline_params);
 439                 if (p->p == NULL) {
 440                         rte_free(p);
 441                         return NULL;
 442                 }
 443         }
 444
 445         /* Input ports */
 446         p->n_ports_in = params->n_ports_in;
 447         for (i = 0; i < p->n_ports_in; i++) {
 448                 struct rte_pipeline_port_in_params port_params = {
 449                         .ops = pipeline_port_in_params_get_ops(
 450                                 &params->port_in[i]),
 451                         .arg_create = pipeline_port_in_params_convert(
 452                                 &params->port_in[i]),
 453                         .f_action = NULL,
 454                         .arg_ah = NULL,
 455                         .burst_size = params->port_in[i].burst_size,
 456                 };
 457
 458                 int status = rte_pipeline_port_in_create(p->p,
 459                         &port_params,
 460                         &p->port_in_id[i]);
 461
 462                 if (status) {
 463                         rte_pipeline_free(p->p);
 464                         rte_free(p);
 465                         return NULL;
 466                 }
 467         }
 468
 469         /* Output ports */
 470         p->n_ports_out = params->n_ports_out;
 471         for (i = 0; i < p->n_ports_out; i++) {
 472                 struct rte_pipeline_port_out_params port_params = {
 473                         .ops = pipeline_port_out_params_get_ops(
 474                                 &params->port_out[i]),
 475                         .arg_create = pipeline_port_out_params_convert(
 476                                 &params->port_out[i]),
 477                         .f_action = NULL,
 478                         .arg_ah = NULL,
 479                 };
 480
 481                 int status = rte_pipeline_port_out_create(p->p,
 482                         &port_params,
 483                         &p->port_out_id[i]);
 484
 485                 if (status) {
 486                         rte_pipeline_free(p->p);
 487                         rte_free(p);
 488                         return NULL;
 489                 }
 490         }
 491
 492         /* Tables */
 493         p->n_tables = 1;
 494         {
 495                 struct rte_table_hash_key8_ext_params
 496                         table_hash_key8_params = {
 497                         .n_entries = p_fc->n_flows,
 498                         .n_entries_ext = p_fc->n_flows,
 499                         .signature_offset = p_fc->hash_offset,
 500                         .key_offset = p_fc->key_offset,
 501                         .f_hash = hash_func[(p_fc->key_size / 8) - 1],
 502                         .key_mask = (p_fc->key_mask_present) ?
 503                                 p_fc->key_mask : NULL,
 504                         .seed = 0,
 505                 };
 506
 507                 struct rte_table_hash_key16_ext_params
 508                         table_hash_key16_params = {
 509                         .n_entries = p_fc->n_flows,
 510                         .n_entries_ext = p_fc->n_flows,
 511                         .signature_offset = p_fc->hash_offset,
 512                         .key_offset = p_fc->key_offset,
 513                         .f_hash = hash_func[(p_fc->key_size / 8) - 1],
 514                         .key_mask = (p_fc->key_mask_present) ?
 515                                 p_fc->key_mask : NULL,
 516                         .seed = 0,
 517                 };
 518
 519                 struct rte_table_hash_params table_hash_params = {
 520                         .name = p->name,
 521                         .key_size = p_fc->key_size,
 522                         .key_offset = p_fc->key_offset,
 523                         .key_mask = (p_fc->key_mask_present) ?
 524                                 p_fc->key_mask : NULL,
 525                         .n_keys = p_fc->n_flows,
 526                         .n_buckets = p_fc->n_flows / 4,
 527                         .f_hash = (rte_table_hash_op_hash)hash_func[(p_fc->key_size / 8) - 1],
 528                         .seed = 0,
 529                 };
 530
 531                 struct rte_pipeline_table_params table_params = {
 532                         .ops = NULL, /* set below */
 533                         .arg_create = NULL, /* set below */
 534                         .f_action_hit = get_fc_table_ah_hit(p_fc),
 535                         .f_action_miss = NULL,
 536                         .arg_ah = p_fc,
 537                         .action_data_size = sizeof(struct flow_table_entry) -
 538                                 sizeof(struct rte_pipeline_table_entry),
 539                 };
 540
 541                 int status;
 542
 543                 switch (p_fc->key_size) {
 544                 case 8:
 545                         table_params.ops = &rte_table_hash_key8_ext_ops;
 546                         table_params.arg_create = &table_hash_key8_params;
 547                         break;
 548
 549                 case 16:
 550                         table_params.ops = &rte_table_hash_key16_ext_ops;
 551                         table_params.arg_create = &table_hash_key16_params;
 552                         break;
 553
 554                 default:
 555                         table_params.ops = &rte_table_hash_ext_ops;
 556                         table_params.arg_create = &table_hash_params;
 557                 }
 558
 559                 status = rte_pipeline_table_create(p->p,
 560                         &table_params,
 561                         &p->table_id[0]);
 562
 563                 if (status) {
 564                         rte_pipeline_free(p->p);
 565                         rte_free(p);
 566                         return NULL;
 567                 }
 568         }
 569
 570         /* Connecting input ports to tables */
 571         for (i = 0; i < p->n_ports_in; i++) {
 572                 int status = rte_pipeline_port_in_connect_to_table(p->p,
 573                         p->port_in_id[i],
 574                         p->table_id[0]);
 575
 576                 if (status) {
 577                         rte_pipeline_free(p->p);
 578                         rte_free(p);
 579                         return NULL;
 580                 }
 581         }
 582
 583         /* Enable input ports */
 584         for (i = 0; i < p->n_ports_in; i++) {
 585                 int status = rte_pipeline_port_in_enable(p->p,
 586                         p->port_in_id[i]);
 587
 588                 if (status) {
 589                         rte_pipeline_free(p->p);
 590                         rte_free(p);
 591                         return NULL;
 592                 }
 593         }
 594
 595         /* Check pipeline consistency */
 596         if (rte_pipeline_check(p->p) < 0) {
 597                 rte_pipeline_free(p->p);
 598                 rte_free(p);
 599                 return NULL;
 600         }
 601
 602         /* Message queues */
 603         p->n_msgq = params->n_msgq;
 604         for (i = 0; i < p->n_msgq; i++)
 605                 p->msgq_in[i] = params->msgq_in[i];
 606         for (i = 0; i < p->n_msgq; i++)
 607                 p->msgq_out[i] = params->msgq_out[i];
 608
 609         /* Message handlers */
 610         memcpy(p->handlers, handlers, sizeof(p->handlers));
 611         memcpy(p_fc->custom_handlers,
 612                 custom_handlers,
 613                 sizeof(p_fc->custom_handlers));
 614
 615         return p;
 616 }
 617
 618 static int
 619 pipeline_fc_free(void *pipeline)
 620 {
 621         struct pipeline *p = (struct pipeline *) pipeline;
 622
 623         /* Check input arguments */
 624         if (p == NULL)
 625                 return -1;
 626
 627         /* Free resources */
 628         rte_pipeline_free(p->p);
 629         rte_free(p);
 630         return 0;
 631 }
 632
 633 static int
 634 pipeline_fc_timer(void *pipeline)
 635 {
 636         struct pipeline *p = (struct pipeline *) pipeline;
 637
 638         pipeline_msg_req_handle(p);
 639         rte_pipeline_flush(p->p);
 640
 641         return 0;
 642 }
 643
 644 static void *
 645 pipeline_fc_msg_req_custom_handler(struct pipeline *p, void *msg)
 646 {
 647         struct pipeline_flow_classification *p_fc =
 648                         (struct pipeline_flow_classification *) p;
 649         struct pipeline_custom_msg_req *req = msg;
 650         pipeline_msg_req_handler f_handle;
 651
 652         f_handle = (req->subtype < PIPELINE_FC_MSG_REQS) ?
 653                 p_fc->custom_handlers[req->subtype] :
 654                 pipeline_msg_req_invalid_handler;
 655
 656         if (f_handle == NULL)
 657                 f_handle = pipeline_msg_req_invalid_handler;
 658
 659         return f_handle(p, req);
 660 }
 661
 662 static void *
 663 pipeline_fc_msg_req_add_handler(struct pipeline *p, void *msg)
 664 {
 665         struct pipeline_fc_add_msg_req *req = msg;
 666         struct pipeline_fc_add_msg_rsp *rsp = msg;
 667
 668         struct flow_table_entry entry = {
 669                 .head = {
 670                         .action = RTE_PIPELINE_ACTION_PORT,
 671                         {.port_id = p->port_out_id[req->port_id]},
 672                 },
 673                 .flow_id = req->flow_id,
 674         };
 675
 676         rsp->status = rte_pipeline_table_entry_add(p->p,
 677                 p->table_id[0],
 678                 &req->key,
 679                 (struct rte_pipeline_table_entry *) &entry,
 680                 &rsp->key_found,
 681                 (struct rte_pipeline_table_entry **) &rsp->entry_ptr);
 682
 683         return rsp;
 684 }
 685
 686 static void *
 687 pipeline_fc_msg_req_add_bulk_handler(struct pipeline *p, void *msg)
 688 {
 689         struct pipeline_fc_add_bulk_msg_req *req = msg;
 690         struct pipeline_fc_add_bulk_msg_rsp *rsp = msg;
 691         uint32_t i;
 692
 693         for (i = 0; i < req->n_keys; i++) {
 694                 struct pipeline_fc_add_bulk_flow_req *flow_req = &req->req[i];
 695                 struct pipeline_fc_add_bulk_flow_rsp *flow_rsp = &req->rsp[i];
 696
 697                 struct flow_table_entry entry = {
 698                         .head = {
 699                                 .action = RTE_PIPELINE_ACTION_PORT,
 700                                 {.port_id = p->port_out_id[flow_req->port_id]},
 701                         },
 702                         .flow_id = flow_req->flow_id,
 703                 };
 704
 705                 int status = rte_pipeline_table_entry_add(p->p,
 706                         p->table_id[0],
 707                         &flow_req->key,
 708                         (struct rte_pipeline_table_entry *) &entry,
 709                         &flow_rsp->key_found,
 710                         (struct rte_pipeline_table_entry **)
 711                                 &flow_rsp->entry_ptr);
 712
 713                 if (status)
 714                         break;
 715         }
 716
 717         rsp->n_keys = i;
 718
 719         return rsp;
 720 }
 721
 722 static void *
 723 pipeline_fc_msg_req_del_handler(struct pipeline *p, void *msg)
 724 {
 725         struct pipeline_fc_del_msg_req *req = msg;
 726         struct pipeline_fc_del_msg_rsp *rsp = msg;
 727
 728         rsp->status = rte_pipeline_table_entry_delete(p->p,
 729                 p->table_id[0],
 730                 &req->key,
 731                 &rsp->key_found,
 732                 NULL);
 733
 734         return rsp;
 735 }
 736
 737 static void *
 738 pipeline_fc_msg_req_add_default_handler(struct pipeline *p, void *msg)
 739 {
 740         struct pipeline_fc_add_default_msg_req *req = msg;
 741         struct pipeline_fc_add_default_msg_rsp *rsp = msg;
 742
 743         struct flow_table_entry default_entry = {
 744                 .head = {
 745                         .action = RTE_PIPELINE_ACTION_PORT,
 746                         {.port_id = p->port_out_id[req->port_id]},
 747                 },
 748
 749                 .flow_id = 0,
 750         };
 751
 752         rsp->status = rte_pipeline_table_default_entry_add(p->p,
 753                 p->table_id[0],
 754                 (struct rte_pipeline_table_entry *) &default_entry,
 755                 (struct rte_pipeline_table_entry **) &rsp->entry_ptr);
 756
 757         return rsp;
 758 }
 759
 760 static void *
 761 pipeline_fc_msg_req_del_default_handler(struct pipeline *p, void *msg)
 762 {
 763         struct pipeline_fc_del_default_msg_rsp *rsp = msg;
 764
 765         rsp->status = rte_pipeline_table_default_entry_delete(p->p,
 766                 p->table_id[0],
 767                 NULL);
 768
 769         return rsp;
 770 }
 771
 772 struct pipeline_be_ops pipeline_flow_classification_be_ops = {
 773         .f_init = pipeline_fc_init,
 774         .f_free = pipeline_fc_free,
 775         .f_run = NULL,
 776         .f_timer = pipeline_fc_timer,
 777 };