lib/librte_pmd_bond/rte_eth_bond_api.c

   1 /*-
   2  *   BSD LICENSE
   3  *
   4  *   Copyright(c) 2010-2014 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 <rte_mbuf.h>
  35 #include <rte_malloc.h>
  36 #include <rte_ethdev.h>
  37 #include <rte_tcp.h>
  38
  39 #include "rte_eth_bond.h"
  40 #include "rte_eth_bond_private.h"
  41
  42 int
  43 valid_bonded_ethdev(struct rte_eth_dev *eth_dev)
  44 {
  45         size_t len;
  46
  47         /* Check valid pointer */
  48         if (eth_dev->driver->pci_drv.name == NULL || driver_name == NULL)
  49                 return -1;
  50
  51         /* Check string lengths are equal */
  52         len = strlen(driver_name);
  53         if (strlen(eth_dev->driver->pci_drv.name) != len)
  54                 return -1;
  55
  56         /* Compare strings */
  57         return strncmp(eth_dev->driver->pci_drv.name, driver_name, len);
  58 }
  59
  60 int
  61 valid_port_id(uint8_t port_id)
  62 {
  63         /* Verify that port id is valid */
  64         int ethdev_count = rte_eth_dev_count();
  65         if (port_id >= ethdev_count) {
  66                 RTE_LOG(ERR, PMD,
  67                                 "%s: port Id %d is greater than rte_eth_dev_count %d\n",
  68                                 __func__, port_id, ethdev_count);
  69                 return -1;
  70         }
  71
  72         return 0;
  73 }
  74
  75 int
  76 valid_bonded_port_id(uint8_t port_id)
  77 {
  78         /* Verify that port id's are valid */
  79         if (valid_port_id(port_id))
  80                 return -1;
  81
  82         /* Verify that bonded_port_id refers to a bonded port */
  83         if (valid_bonded_ethdev(&rte_eth_devices[port_id])) {
  84                 RTE_LOG(ERR, PMD,
  85                                 "%s: Specified port Id %d is not a bonded eth_dev device\n",
  86                                 __func__, port_id);
  87                 return -1;
  88         }
  89
  90         return 0;
  91 }
  92
  93 int
  94 valid_slave_port_id(uint8_t port_id)
  95 {
  96         /* Verify that port id's are valid */
  97         if (valid_port_id(port_id))
  98                 return -1;
  99
 100         /* Verify that port_id refers to a non bonded port */
 101         if (!valid_bonded_ethdev(&rte_eth_devices[port_id]))
 102                 return -1;
 103
 104         return 0;
 105 }
 106
 107 uint8_t
 108 number_of_sockets(void)
 109 {
 110         int sockets = 0;
 111         int i;
 112         const struct rte_memseg *ms = rte_eal_get_physmem_layout();
 113
 114         for (i = 0; ((i < RTE_MAX_MEMSEG) && (ms[i].addr != NULL)); i++) {
 115                 if (sockets < ms[i].socket_id)
 116                         sockets = ms[i].socket_id;
 117         }
 118
 119         /* Number of sockets = maximum socket_id + 1 */
 120         return ++sockets;
 121 }
 122
 123 const char *driver_name = "Link Bonding PMD";
 124
 125 int
 126 rte_eth_bond_create(const char *name, uint8_t mode, uint8_t socket_id)
 127 {
 128         struct rte_pci_device *pci_dev = NULL;
 129         struct bond_dev_private *internals = NULL;
 130         struct rte_eth_dev *eth_dev = NULL;
 131         struct eth_driver *eth_drv = NULL;
 132         struct rte_pci_driver *pci_drv = NULL;
 133         struct rte_pci_id *pci_id_table = NULL;
 134         /* now do all data allocation - for eth_dev structure, dummy pci driver
 135          * and internal (private) data
 136          */
 137
 138         if (name == NULL) {
 139                 RTE_LOG(ERR, PMD, "Invalid name specified\n");
 140                 goto err;
 141         }
 142
 143         if (socket_id >= number_of_sockets()) {
 144                 RTE_LOG(ERR, PMD,
 145                                 "%s: invalid socket id specified to create bonded device on.\n",
 146                                 __func__);
 147                 goto err;
 148         }
 149
 150         pci_dev = rte_zmalloc_socket(name, sizeof(*pci_dev), 0, socket_id);
 151         if (pci_dev == NULL) {
 152                 RTE_LOG(ERR, PMD, "Unable to malloc pci dev on socket\n");
 153                 goto err;
 154         }
 155
 156         eth_drv = rte_zmalloc_socket(name, sizeof(*eth_drv), 0, socket_id);
 157         if (eth_drv == NULL) {
 158                 RTE_LOG(ERR, PMD, "Unable to malloc eth_drv on socket\n");
 159                 goto err;
 160         }
 161
 162         pci_drv = rte_zmalloc_socket(name, sizeof(*pci_drv), 0, socket_id);
 163         if (pci_drv == NULL) {
 164                 RTE_LOG(ERR, PMD, "Unable to malloc pci_drv on socket\n");
 165                 goto err;
 166         }
 167         pci_id_table = rte_zmalloc_socket(name, sizeof(*pci_id_table), 0, socket_id);
 168         if (pci_drv == NULL) {
 169                 RTE_LOG(ERR, PMD, "Unable to malloc pci_id_table on socket\n");
 170                 goto err;
 171         }
 172
 173         pci_drv->id_table = pci_id_table;
 174
 175         pci_drv->id_table->device_id = PCI_ANY_ID;
 176         pci_drv->id_table->subsystem_device_id = PCI_ANY_ID;
 177         pci_drv->id_table->vendor_id = PCI_ANY_ID;
 178         pci_drv->id_table->subsystem_vendor_id = PCI_ANY_ID;
 179
 180         pci_drv->drv_flags = RTE_PCI_DRV_INTR_LSC;
 181
 182         internals = rte_zmalloc_socket(name, sizeof(*internals), 0, socket_id);
 183         if (internals == NULL) {
 184                 RTE_LOG(ERR, PMD, "Unable to malloc internals on socket\n");
 185                 goto err;
 186         }
 187
 188         /* reserve an ethdev entry */
 189         eth_dev = rte_eth_dev_allocate(name);
 190         if (eth_dev == NULL) {
 191                 RTE_LOG(ERR, PMD, "Unable to allocate rte_eth_dev\n");
 192                 goto err;
 193         }
 194
 195         pci_dev->numa_node = socket_id;
 196         pci_drv->name = driver_name;
 197
 198         eth_drv->pci_drv = (struct rte_pci_driver)(*pci_drv);
 199         eth_dev->driver = eth_drv;
 200
 201         eth_dev->data->dev_private = internals;
 202         eth_dev->data->nb_rx_queues = (uint16_t)1;
 203         eth_dev->data->nb_tx_queues = (uint16_t)1;
 204
 205         TAILQ_INIT(&(eth_dev->callbacks));
 206
 207         eth_dev->data->dev_link.link_status = 0;
 208
 209         eth_dev->data->mac_addrs = rte_zmalloc_socket(name, ETHER_ADDR_LEN, 0,
 210                         socket_id);
 211
 212         eth_dev->data->dev_started = 0;
 213         eth_dev->data->promiscuous = 0;
 214         eth_dev->data->scattered_rx = 0;
 215         eth_dev->data->all_multicast = 0;
 216
 217         eth_dev->dev_ops = &default_dev_ops;
 218         eth_dev->pci_dev = pci_dev;
 219
 220         if (bond_ethdev_mode_set(eth_dev, mode)) {
 221                 RTE_LOG(ERR, PMD,
 222                                 "%s: failed to set bonded device %d mode too %d\n",
 223                                 __func__, eth_dev->data->port_id, mode);
 224                 goto err;
 225         }
 226
 227         internals->current_primary_port = 0;
 228         internals->balance_xmit_policy = BALANCE_XMIT_POLICY_LAYER2;
 229         internals->user_defined_mac = 0;
 230         internals->link_props_set = 0;
 231         internals->slave_count = 0;
 232         internals->active_slave_count = 0;
 233
 234         memset(internals->active_slaves, 0, sizeof(internals->active_slaves));
 235         memset(internals->slaves, 0, sizeof(internals->slaves));
 236
 237         memset(internals->presisted_slaves_conf, 0,
 238                         sizeof(internals->presisted_slaves_conf));
 239
 240         return eth_dev->data->port_id;
 241
 242 err:
 243         if (pci_dev)
 244                 rte_free(pci_dev);
 245         if (pci_drv)
 246                 rte_free(pci_drv);
 247         if (pci_id_table)
 248                 rte_free(pci_id_table);
 249         if (eth_drv)
 250                 rte_free(eth_drv);
 251         if (internals)
 252                 rte_free(internals);
 253         return -1;
 254 }
 255
 256 int
 257 rte_eth_bond_slave_add(uint8_t bonded_port_id, uint8_t slave_port_id)
 258 {
 259         struct rte_eth_dev *bonded_eth_dev, *slave_eth_dev;
 260         struct bond_dev_private *internals;
 261         struct bond_dev_private *temp_internals;
 262         struct rte_eth_link link_props;
 263
 264         int i, j;
 265
 266         /* Verify that port id's are valid bonded and slave ports */
 267         if (valid_bonded_port_id(bonded_port_id) != 0)
 268                 goto err_add;
 269
 270         if (valid_slave_port_id(slave_port_id) != 0)
 271                 goto err_add;
 272
 273         /*
 274          * Verify that new slave device is not already a slave of another bonded
 275          * device */
 276         for (i = rte_eth_dev_count()-1; i >= 0; i--) {
 277                 if (valid_bonded_ethdev(&rte_eth_devices[i]) == 0) {
 278                         temp_internals = rte_eth_devices[i].data->dev_private;
 279                         for (j = 0; j < temp_internals->slave_count; j++) {
 280                                 /* Device already a slave of a bonded device */
 281                                 if (temp_internals->slaves[j] == slave_port_id)
 282                                         goto err_add;
 283                         }
 284                 }
 285         }
 286
 287         bonded_eth_dev = &rte_eth_devices[bonded_port_id];
 288         internals = bonded_eth_dev->data->dev_private;
 289
 290         slave_eth_dev = &rte_eth_devices[slave_port_id];
 291
 292         if (internals->slave_count > 0) {
 293                 /* Check that new slave device is the same type as the other slaves
 294                  * and not repetitive */
 295                 for (i = 0; i < internals->slave_count; i++) {
 296                         if (slave_eth_dev->pci_dev->driver->id_table->device_id !=
 297                                         rte_eth_devices[internals->slaves[i]].pci_dev->driver->id_table->device_id ||
 298                                 internals->slaves[i] == slave_port_id)
 299                                 goto err_add;
 300                 }
 301         }
 302
 303         /* Add slave details to bonded device */
 304         internals->slaves[internals->slave_count] = slave_port_id;
 305
 306         slave_config_store(internals, slave_eth_dev);
 307
 308         if (internals->slave_count < 1) {
 309                 /* if MAC is not user defined then use MAC of first slave add to bonded
 310                  * device */
 311                 if (!internals->user_defined_mac)
 312                         mac_address_set(bonded_eth_dev, slave_eth_dev->data->mac_addrs);
 313
 314                 /* Inherit eth dev link properties from first slave */
 315                 link_properties_set(bonded_eth_dev, &(slave_eth_dev->data->dev_link));
 316
 317                 /* Make primary slave */
 318                 internals->primary_port = slave_port_id;
 319         } else {
 320                 /* Check slave link properties are supported if props are set,
 321                  * all slaves must be the same */
 322                 if (internals->link_props_set) {
 323                         if (link_properties_valid(&(bonded_eth_dev->data->dev_link),
 324                                                                           &(slave_eth_dev->data->dev_link))) {
 325                                 RTE_LOG(ERR, PMD,
 326                                                 "%s: Slave port %d link speed/duplex not supported\n",
 327                                                 __func__, slave_port_id);
 328                                 goto err_add;
 329                         }
 330                 } else {
 331                         link_properties_set(bonded_eth_dev,
 332                                         &(slave_eth_dev->data->dev_link));
 333                 }
 334         }
 335
 336         internals->slave_count++;
 337
 338         /* Update all slave devices MACs*/
 339         mac_address_slaves_update(bonded_eth_dev);
 340
 341         if (bonded_eth_dev->data->dev_started) {
 342                 if (slave_configure(bonded_eth_dev, slave_eth_dev) != 0) {
 343                         RTE_LOG(ERR, PMD, "rte_bond_slaves_configure: port=%d\n",
 344                                         slave_port_id);
 345                         goto err_add;
 346                 }
 347         }
 348
 349         /* Register link status change callback with bonded device pointer as
 350          * argument*/
 351         rte_eth_dev_callback_register(slave_port_id, RTE_ETH_EVENT_INTR_LSC,
 352                         bond_ethdev_lsc_event_callback, &bonded_eth_dev->data->port_id);
 353
 354         /* If bonded device is started then we can add the slave to our active
 355          * slave array */
 356         if (bonded_eth_dev->data->dev_started) {
 357                 rte_eth_link_get_nowait(slave_port_id, &link_props);
 358
 359                  if (link_props.link_status == 1) {
 360                         internals->active_slaves[internals->active_slave_count++] =
 361                                         slave_port_id;
 362                 }
 363         }
 364
 365         return 0;
 366
 367 err_add:
 368         RTE_LOG(ERR, PMD, "Failed to add port %d as slave\n", slave_port_id);
 369         return -1;
 370
 371 }
 372
 373 int
 374 rte_eth_bond_slave_remove(uint8_t bonded_port_id, uint8_t slave_port_id)
 375 {
 376         struct bond_dev_private *internals;
 377         struct slave_conf *slave_conf;
 378
 379         int i;
 380         int pos = -1;
 381
 382         /* Verify that port id's are valid bonded and slave ports */
 383         if (valid_bonded_port_id(bonded_port_id) != 0)
 384                 goto err_del;
 385
 386         if (valid_slave_port_id(slave_port_id) != 0)
 387                 goto err_del;
 388
 389         internals = rte_eth_devices[bonded_port_id].data->dev_private;
 390
 391         /* first remove from active slave list */
 392         for (i = 0; i < internals->active_slave_count; i++) {
 393                 if (internals->active_slaves[i] == slave_port_id)
 394                         pos = i;
 395
 396                 /* shift active slaves up active array list */
 397                 if (pos >= 0 && i < (internals->active_slave_count - 1))
 398                         internals->active_slaves[i] = internals->active_slaves[i+1];
 399         }
 400
 401         if (pos >= 0)
 402                 internals->active_slave_count--;
 403
 404         pos = -1;
 405         /* now remove from slave list */
 406         for (i = 0; i < internals->slave_count; i++) {
 407                 if (internals->slaves[i] == slave_port_id)
 408                         pos = i;
 409
 410                 /* shift slaves up list */
 411                 if (pos >= 0 && i < internals->slave_count)
 412                         internals->slaves[i] = internals->slaves[i+1];
 413         }
 414
 415         if (pos < 0)
 416                 goto err_del;
 417
 418         /* Un-register link status change callback with bonded device pointer as
 419          * argument*/
 420         rte_eth_dev_callback_unregister(slave_port_id, RTE_ETH_EVENT_INTR_LSC,
 421                         bond_ethdev_lsc_event_callback,
 422                         &rte_eth_devices[bonded_port_id].data->port_id);
 423
 424         /* Restore original MAC address of slave device */
 425         slave_conf = slave_config_get(internals, slave_port_id);
 426
 427         mac_address_set(&rte_eth_devices[slave_port_id], &(slave_conf->mac_addr));
 428
 429         slave_config_clear(internals, &rte_eth_devices[slave_port_id]);
 430
 431         internals->slave_count--;
 432
 433         /*  first slave in the active list will be the primary by default,
 434          *  otherwise use first device in list */
 435         if (internals->current_primary_port == slave_port_id) {
 436                 if (internals->active_slave_count > 0)
 437                         internals->current_primary_port = internals->active_slaves[0];
 438                 else if (internals->slave_count > 0)
 439                         internals->current_primary_port = internals->slaves[0];
 440                 else
 441                         internals->primary_port = 0;
 442         }
 443
 444         if (internals->active_slave_count < 1) {
 445                 /* reset device link properties as no slaves are active */
 446                 link_properties_reset(&rte_eth_devices[bonded_port_id]);
 447
 448                 /* if no slaves are any longer attached to bonded device and MAC is not
 449                  * user defined then clear MAC of bonded device as it will be reset
 450                  * when a new slave is added */
 451                 if (internals->slave_count < 1 && !internals->user_defined_mac)
 452                         memset(rte_eth_devices[bonded_port_id].data->mac_addrs, 0,
 453                                         sizeof(*(rte_eth_devices[bonded_port_id].data->mac_addrs)));
 454         }
 455
 456         return 0;
 457
 458 err_del:
 459         RTE_LOG(ERR, PMD,
 460                         "Cannot remove slave device (not present in bonded device)\n");
 461         return -1;
 462
 463 }
 464
 465 int
 466 rte_eth_bond_mode_set(uint8_t bonded_port_id, uint8_t mode)
 467 {
 468         if (valid_bonded_port_id(bonded_port_id) != 0)
 469                 return -1;
 470
 471         return bond_ethdev_mode_set(&rte_eth_devices[bonded_port_id], mode);
 472 }
 473
 474 int
 475 rte_eth_bond_mode_get(uint8_t bonded_port_id)
 476 {
 477         struct bond_dev_private *internals;
 478
 479         if (valid_bonded_port_id(bonded_port_id) != 0)
 480                 return -1;
 481
 482         internals = rte_eth_devices[bonded_port_id].data->dev_private;
 483
 484         return internals->mode;
 485 }
 486
 487 int
 488 rte_eth_bond_primary_set(uint8_t bonded_port_id, uint8_t slave_port_id)
 489 {
 490         struct bond_dev_private *internals;
 491
 492         if (valid_bonded_port_id(bonded_port_id) != 0)
 493                 return -1;
 494
 495         if (valid_slave_port_id(slave_port_id) != 0)
 496                 return -1;
 497
 498         internals =  rte_eth_devices[bonded_port_id].data->dev_private;
 499
 500         internals->user_defined_primary_port = 1;
 501         internals->primary_port = slave_port_id;
 502
 503         bond_ethdev_primary_set(internals, slave_port_id);
 504
 505         return 0;
 506 }
 507
 508 int
 509 rte_eth_bond_primary_get(uint8_t bonded_port_id)
 510 {
 511         struct bond_dev_private *internals;
 512
 513         if (valid_bonded_port_id(bonded_port_id) != 0)
 514                 return -1;
 515
 516         internals = rte_eth_devices[bonded_port_id].data->dev_private;
 517
 518         if (internals->slave_count < 1)
 519                 return -1;
 520
 521         return internals->current_primary_port;
 522 }
 523 int
 524 rte_eth_bond_slaves_get(uint8_t bonded_port_id, uint8_t slaves[], uint8_t len)
 525 {
 526         struct bond_dev_private *internals;
 527
 528         if (valid_bonded_port_id(bonded_port_id) != 0)
 529                 return -1;
 530
 531         if (slaves == NULL)
 532                 return -1;
 533
 534         internals = rte_eth_devices[bonded_port_id].data->dev_private;
 535
 536         if (internals->slave_count > len)
 537                 return -1;
 538
 539         memcpy(slaves, internals->slaves, internals->slave_count);
 540
 541         return internals->slave_count;
 542
 543 }
 544
 545 int
 546 rte_eth_bond_active_slaves_get(uint8_t bonded_port_id, uint8_t slaves[],
 547                 uint8_t len)
 548 {
 549         struct bond_dev_private *internals;
 550
 551         if (valid_bonded_port_id(bonded_port_id) != 0)
 552                 return -1;
 553
 554         if (slaves == NULL)
 555                 return -1;
 556
 557         internals = rte_eth_devices[bonded_port_id].data->dev_private;
 558
 559         if (internals->active_slave_count > len)
 560                 return -1;
 561
 562         memcpy(slaves, internals->active_slaves, internals->active_slave_count);
 563
 564         return internals->active_slave_count;
 565 }
 566
 567 int
 568 rte_eth_bond_mac_address_set(uint8_t bonded_port_id,
 569                 struct ether_addr *mac_addr)
 570 {
 571         struct rte_eth_dev *bonded_eth_dev;
 572         struct bond_dev_private *internals;
 573
 574         if (valid_bonded_port_id(bonded_port_id) != 0)
 575                 return -1;
 576
 577         bonded_eth_dev = &rte_eth_devices[bonded_port_id];
 578         internals = bonded_eth_dev->data->dev_private;
 579
 580         /* Set MAC Address of Bonded Device */
 581         if (mac_address_set(bonded_eth_dev, mac_addr))
 582                 return -1;
 583
 584         internals->user_defined_mac = 1;
 585
 586         /* Update all slave devices MACs*/
 587         if (internals->slave_count > 0)
 588                 return mac_address_slaves_update(bonded_eth_dev);
 589
 590         return 0;
 591 }
 592
 593 int
 594 rte_eth_bond_mac_address_reset(uint8_t bonded_port_id)
 595 {
 596         struct rte_eth_dev *bonded_eth_dev;
 597         struct bond_dev_private *internals;
 598
 599         if (valid_bonded_port_id(bonded_port_id) != 0)
 600                 return -1;
 601
 602         bonded_eth_dev = &rte_eth_devices[bonded_port_id];
 603         internals = bonded_eth_dev->data->dev_private;
 604
 605         internals->user_defined_mac = 0;
 606
 607         if (internals->slave_count > 0) {
 608                 struct slave_conf *conf;
 609                 conf = slave_config_get(internals, internals->primary_port);
 610
 611                 /* Set MAC Address of Bonded Device */
 612                 if (mac_address_set(bonded_eth_dev, &conf->mac_addr) != 0)
 613                         return -1;
 614
 615                 /* Update all slave devices MAC addresses */
 616                 return mac_address_slaves_update(bonded_eth_dev);
 617         }
 618         /* No need to update anything as no slaves present */
 619         return 0;
 620 }
 621
 622 int
 623 rte_eth_bond_xmit_policy_set(uint8_t bonded_port_id, uint8_t policy)
 624 {
 625         struct bond_dev_private *internals;
 626
 627         if (valid_bonded_port_id(bonded_port_id) != 0)
 628                 return -1;
 629
 630         internals = rte_eth_devices[bonded_port_id].data->dev_private;
 631
 632         switch (policy) {
 633         case BALANCE_XMIT_POLICY_LAYER2:
 634         case BALANCE_XMIT_POLICY_LAYER23:
 635         case BALANCE_XMIT_POLICY_LAYER34:
 636                 internals->balance_xmit_policy = policy;
 637                 break;
 638
 639         default:
 640                 return -1;
 641         }
 642         return 0;
 643 }
 644
 645 int
 646 rte_eth_bond_xmit_policy_get(uint8_t bonded_port_id)
 647 {
 648         struct bond_dev_private *internals;
 649
 650         if (valid_bonded_port_id(bonded_port_id) != 0)
 651                 return -1;
 652
 653         internals = rte_eth_devices[bonded_port_id].data->dev_private;
 654
 655         return internals->balance_xmit_policy;
 656 }