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         internals = rte_zmalloc_socket(name, sizeof(*internals), 0, socket_id);
 181         if (internals == NULL) {
 182                 RTE_LOG(ERR, PMD, "Unable to malloc internals on socket\n");
 183                 goto err;
 184         }
 185
 186         /* reserve an ethdev entry */
 187         eth_dev = rte_eth_dev_allocate(name);
 188         if (eth_dev == NULL) {
 189                 RTE_LOG(ERR, PMD, "Unable to allocate rte_eth_dev\n");
 190                 goto err;
 191         }
 192
 193         pci_dev->numa_node = socket_id;
 194         pci_drv->name = driver_name;
 195
 196         eth_drv->pci_drv = (struct rte_pci_driver)(*pci_drv);
 197         eth_dev->driver = eth_drv;
 198
 199         eth_dev->data->dev_private = internals;
 200         eth_dev->data->nb_rx_queues = (uint16_t)1;
 201         eth_dev->data->nb_tx_queues = (uint16_t)1;
 202
 203         eth_dev->data->dev_link.link_status = 0;
 204
 205         eth_dev->data->mac_addrs = rte_zmalloc_socket(name, ETHER_ADDR_LEN, 0,
 206                         socket_id);
 207
 208         eth_dev->data->dev_started = 0;
 209         eth_dev->data->promiscuous = 0;
 210         eth_dev->data->scattered_rx = 0;
 211         eth_dev->data->all_multicast = 0;
 212
 213         eth_dev->dev_ops = &default_dev_ops;
 214         eth_dev->pci_dev = pci_dev;
 215
 216         if (bond_ethdev_mode_set(eth_dev, mode)) {
 217                 RTE_LOG(ERR, PMD,
 218                                 "%s: failed to set bonded device %d mode too %d\n",
 219                                 __func__, eth_dev->data->port_id, mode);
 220                 goto err;
 221         }
 222
 223         internals->current_primary_port = 0;
 224         internals->balance_xmit_policy = BALANCE_XMIT_POLICY_LAYER2;
 225         internals->user_defined_mac = 0;
 226         internals->link_props_set = 0;
 227         internals->slave_count = 0;
 228         internals->active_slave_count = 0;
 229
 230         memset(internals->active_slaves, 0, sizeof(internals->active_slaves));
 231         memset(internals->slaves, 0, sizeof(internals->slaves));
 232
 233         memset(internals->presisted_slaves_conf, 0,
 234                         sizeof(internals->presisted_slaves_conf));
 235
 236         return eth_dev->data->port_id;
 237
 238 err:
 239         if (pci_dev)
 240                 rte_free(pci_dev);
 241         if (pci_drv)
 242                 rte_free(pci_drv);
 243         if (pci_id_table)
 244                 rte_free(pci_id_table);
 245         if (eth_drv)
 246                 rte_free(eth_drv);
 247         if (internals)
 248                 rte_free(internals);
 249         return -1;
 250 }
 251
 252 int
 253 rte_eth_bond_slave_add(uint8_t bonded_port_id, uint8_t slave_port_id)
 254 {
 255         struct rte_eth_dev *bonded_eth_dev, *slave_eth_dev;
 256         struct bond_dev_private *internals;
 257         struct bond_dev_private *temp_internals;
 258         struct rte_eth_link link_props;
 259
 260         int i, j;
 261
 262         /* Verify that port id's are valid bonded and slave ports */
 263         if (valid_bonded_port_id(bonded_port_id) != 0)
 264                 goto err_add;
 265
 266         if (valid_slave_port_id(slave_port_id) != 0)
 267                 goto err_add;
 268
 269         /*
 270          * Verify that new slave device is not already a slave of another bonded
 271          * device */
 272         for (i = rte_eth_dev_count()-1; i >= 0; i--) {
 273                 if (valid_bonded_ethdev(&rte_eth_devices[i]) == 0) {
 274                         temp_internals = rte_eth_devices[i].data->dev_private;
 275                         for (j = 0; j < temp_internals->slave_count; j++) {
 276                                 /* Device already a slave of a bonded device */
 277                                 if (temp_internals->slaves[j] == slave_port_id)
 278                                         goto err_add;
 279                         }
 280                 }
 281         }
 282
 283         bonded_eth_dev = &rte_eth_devices[bonded_port_id];
 284         internals = bonded_eth_dev->data->dev_private;
 285
 286         slave_eth_dev = &rte_eth_devices[slave_port_id];
 287
 288         if (internals->slave_count > 0) {
 289                 /* Check that new slave device is the same type as the other slaves
 290                  * and not repetitive */
 291                 for (i = 0; i < internals->slave_count; i++) {
 292                         if (slave_eth_dev->pci_dev->driver->id_table->device_id !=
 293                                         rte_eth_devices[internals->slaves[i]].pci_dev->driver->id_table->device_id ||
 294                                 internals->slaves[i] == slave_port_id)
 295                                 goto err_add;
 296                 }
 297         }
 298
 299         /* Add slave details to bonded device */
 300         internals->slaves[internals->slave_count] = slave_port_id;
 301
 302         slave_config_store(internals, slave_eth_dev);
 303
 304         if (internals->slave_count < 1) {
 305                 /* if MAC is not user defined then use MAC of first slave add to bonded
 306                  * device */
 307                 if (!internals->user_defined_mac)
 308                         mac_address_set(bonded_eth_dev, slave_eth_dev->data->mac_addrs);
 309
 310                 /* Inherit eth dev link properties from first slave */
 311                 link_properties_set(bonded_eth_dev, &(slave_eth_dev->data->dev_link));
 312
 313                 /* Make primary slave */
 314                 internals->primary_port = slave_port_id;
 315         } else {
 316                 /* Check slave link properties are supported if props are set,
 317                  * all slaves must be the same */
 318                 if (internals->link_props_set) {
 319                         if (link_properties_valid(&(bonded_eth_dev->data->dev_link),
 320                                                                           &(slave_eth_dev->data->dev_link))) {
 321                                 RTE_LOG(ERR, PMD,
 322                                                 "%s: Slave port %d link speed/duplex not supported\n",
 323                                                 __func__, slave_port_id);
 324                                 goto err_add;
 325                         }
 326                 } else {
 327                         link_properties_set(bonded_eth_dev,
 328                                         &(slave_eth_dev->data->dev_link));
 329                 }
 330         }
 331
 332         internals->slave_count++;
 333
 334         /* Update all slave devices MACs*/
 335         mac_address_slaves_update(bonded_eth_dev);
 336
 337         if (bonded_eth_dev->data->dev_started) {
 338                 if (slave_configure(bonded_eth_dev, slave_eth_dev) != 0) {
 339                         RTE_LOG(ERR, PMD, "rte_bond_slaves_configure: port=%d\n",
 340                                         slave_port_id);
 341                         goto err_add;
 342                 }
 343         }
 344
 345         /* Register link status change callback with bonded device pointer as
 346          * argument*/
 347         rte_eth_dev_callback_register(slave_port_id, RTE_ETH_EVENT_INTR_LSC,
 348                         bond_ethdev_lsc_event_callback, &bonded_eth_dev->data->port_id);
 349
 350         /* If bonded device is started then we can add the slave to our active
 351          * slave array */
 352         if (bonded_eth_dev->data->dev_started) {
 353                 rte_eth_link_get_nowait(slave_port_id, &link_props);
 354
 355                  if (link_props.link_status == 1) {
 356                         internals->active_slaves[internals->active_slave_count++] =
 357                                         slave_port_id;
 358                 }
 359         }
 360
 361         return 0;
 362
 363 err_add:
 364         RTE_LOG(ERR, PMD, "Failed to add port %d as slave\n", slave_port_id);
 365         return -1;
 366
 367 }
 368
 369 int
 370 rte_eth_bond_slave_remove(uint8_t bonded_port_id, uint8_t slave_port_id)
 371 {
 372         struct bond_dev_private *internals;
 373         struct slave_conf *slave_conf;
 374
 375         int i;
 376         int pos = -1;
 377
 378         /* Verify that port id's are valid bonded and slave ports */
 379         if (valid_bonded_port_id(bonded_port_id) != 0)
 380                 goto err_del;
 381
 382         if (valid_slave_port_id(slave_port_id) != 0)
 383                 goto err_del;
 384
 385         internals = rte_eth_devices[bonded_port_id].data->dev_private;
 386
 387         /* first remove from active slave list */
 388         for (i = 0; i < internals->active_slave_count; i++) {
 389                 if (internals->active_slaves[i] == slave_port_id)
 390                         pos = i;
 391
 392                 /* shift active slaves up active array list */
 393                 if (pos >= 0 && i < (internals->active_slave_count - 1))
 394                         internals->active_slaves[i] = internals->active_slaves[i+1];
 395         }
 396
 397         if (pos >= 0)
 398                 internals->active_slave_count--;
 399
 400         pos = -1;
 401         /* now remove from slave list */
 402         for (i = 0; i < internals->slave_count; i++) {
 403                 if (internals->slaves[i] == slave_port_id)
 404                         pos = i;
 405
 406                 /* shift slaves up list */
 407                 if (pos >= 0 && i < internals->slave_count)
 408                         internals->slaves[i] = internals->slaves[i+1];
 409         }
 410
 411         if (pos < 0)
 412                 goto err_del;
 413
 414         /* Un-register link status change callback with bonded device pointer as
 415          * argument*/
 416         rte_eth_dev_callback_unregister(slave_port_id, RTE_ETH_EVENT_INTR_LSC,
 417                         bond_ethdev_lsc_event_callback,
 418                         &rte_eth_devices[bonded_port_id].data->port_id);
 419
 420         /* Restore original MAC address of slave device */
 421         slave_conf = slave_config_get(internals, slave_port_id);
 422
 423         mac_address_set(&rte_eth_devices[slave_port_id], &(slave_conf->mac_addr));
 424
 425         slave_config_clear(internals, &rte_eth_devices[slave_port_id]);
 426
 427         internals->slave_count--;
 428
 429         /*  first slave in the active list will be the primary by default,
 430          *  otherwise use first device in list */
 431         if (internals->current_primary_port == slave_port_id) {
 432                 if (internals->active_slave_count > 0)
 433                         internals->current_primary_port = internals->active_slaves[0];
 434                 else if (internals->slave_count > 0)
 435                         internals->current_primary_port = internals->slaves[0];
 436                 else
 437                         internals->primary_port = 0;
 438         }
 439
 440         if (internals->active_slave_count < 1) {
 441                 /* reset device link properties as no slaves are active */
 442                 link_properties_reset(&rte_eth_devices[bonded_port_id]);
 443
 444                 /* if no slaves are any longer attached to bonded device and MAC is not
 445                  * user defined then clear MAC of bonded device as it will be reset
 446                  * when a new slave is added */
 447                 if (internals->slave_count < 1 && !internals->user_defined_mac)
 448                         memset(rte_eth_devices[bonded_port_id].data->mac_addrs, 0,
 449                                         sizeof(*(rte_eth_devices[bonded_port_id].data->mac_addrs)));
 450         }
 451
 452         return 0;
 453
 454 err_del:
 455         RTE_LOG(ERR, PMD,
 456                         "Cannot remove slave device (not present in bonded device)\n");
 457         return -1;
 458
 459 }
 460
 461 int
 462 rte_eth_bond_mode_set(uint8_t bonded_port_id, uint8_t mode)
 463 {
 464         if (valid_bonded_port_id(bonded_port_id) != 0)
 465                 return -1;
 466
 467         return bond_ethdev_mode_set(&rte_eth_devices[bonded_port_id], mode);
 468 }
 469
 470 int
 471 rte_eth_bond_mode_get(uint8_t bonded_port_id)
 472 {
 473         struct bond_dev_private *internals;
 474
 475         if (valid_bonded_port_id(bonded_port_id) != 0)
 476                 return -1;
 477
 478         internals = rte_eth_devices[bonded_port_id].data->dev_private;
 479
 480         return internals->mode;
 481 }
 482
 483 int
 484 rte_eth_bond_primary_set(uint8_t bonded_port_id, uint8_t slave_port_id)
 485 {
 486         struct bond_dev_private *internals;
 487
 488         if (valid_bonded_port_id(bonded_port_id) != 0)
 489                 return -1;
 490
 491         if (valid_slave_port_id(slave_port_id) != 0)
 492                 return -1;
 493
 494         internals =  rte_eth_devices[bonded_port_id].data->dev_private;
 495
 496         internals->user_defined_primary_port = 1;
 497         internals->primary_port = slave_port_id;
 498
 499         bond_ethdev_primary_set(internals, slave_port_id);
 500
 501         return 0;
 502 }
 503
 504 int
 505 rte_eth_bond_primary_get(uint8_t bonded_port_id)
 506 {
 507         struct bond_dev_private *internals;
 508
 509         if (valid_bonded_port_id(bonded_port_id) != 0)
 510                 return -1;
 511
 512         internals = rte_eth_devices[bonded_port_id].data->dev_private;
 513
 514         if (internals->slave_count < 1)
 515                 return -1;
 516
 517         return internals->current_primary_port;
 518 }
 519 int
 520 rte_eth_bond_slaves_get(uint8_t bonded_port_id, uint8_t slaves[], uint8_t len)
 521 {
 522         struct bond_dev_private *internals;
 523
 524         if (valid_bonded_port_id(bonded_port_id) != 0)
 525                 return -1;
 526
 527         if (slaves == NULL)
 528                 return -1;
 529
 530         internals = rte_eth_devices[bonded_port_id].data->dev_private;
 531
 532         if (internals->slave_count > len)
 533                 return -1;
 534
 535         memcpy(slaves, internals->slaves, internals->slave_count);
 536
 537         return internals->slave_count;
 538
 539 }
 540
 541 int
 542 rte_eth_bond_active_slaves_get(uint8_t bonded_port_id, uint8_t slaves[],
 543                 uint8_t len)
 544 {
 545         struct bond_dev_private *internals;
 546
 547         if (valid_bonded_port_id(bonded_port_id) != 0)
 548                 return -1;
 549
 550         if (slaves == NULL)
 551                 return -1;
 552
 553         internals = rte_eth_devices[bonded_port_id].data->dev_private;
 554
 555         if (internals->active_slave_count > len)
 556                 return -1;
 557
 558         memcpy(slaves, internals->active_slaves, internals->active_slave_count);
 559
 560         return internals->active_slave_count;
 561 }
 562
 563 int
 564 rte_eth_bond_mac_address_set(uint8_t bonded_port_id,
 565                 struct ether_addr *mac_addr)
 566 {
 567         struct rte_eth_dev *bonded_eth_dev;
 568         struct bond_dev_private *internals;
 569
 570         if (valid_bonded_port_id(bonded_port_id) != 0)
 571                 return -1;
 572
 573         bonded_eth_dev = &rte_eth_devices[bonded_port_id];
 574         internals = bonded_eth_dev->data->dev_private;
 575
 576         /* Set MAC Address of Bonded Device */
 577         if (mac_address_set(bonded_eth_dev, mac_addr))
 578                 return -1;
 579
 580         internals->user_defined_mac = 1;
 581
 582         /* Update all slave devices MACs*/
 583         if (internals->slave_count > 0)
 584                 return mac_address_slaves_update(bonded_eth_dev);
 585
 586         return 0;
 587 }
 588
 589 int
 590 rte_eth_bond_mac_address_reset(uint8_t bonded_port_id)
 591 {
 592         struct rte_eth_dev *bonded_eth_dev;
 593         struct bond_dev_private *internals;
 594
 595         if (valid_bonded_port_id(bonded_port_id) != 0)
 596                 return -1;
 597
 598         bonded_eth_dev = &rte_eth_devices[bonded_port_id];
 599         internals = bonded_eth_dev->data->dev_private;
 600
 601         internals->user_defined_mac = 0;
 602
 603         if (internals->slave_count > 0) {
 604                 struct slave_conf *conf;
 605                 conf = slave_config_get(internals, internals->primary_port);
 606
 607                 /* Set MAC Address of Bonded Device */
 608                 if (mac_address_set(bonded_eth_dev, &conf->mac_addr) != 0)
 609                         return -1;
 610
 611                 /* Update all slave devices MAC addresses */
 612                 return mac_address_slaves_update(bonded_eth_dev);
 613         }
 614         /* No need to update anything as no slaves present */
 615         return 0;
 616 }
 617
 618 int
 619 rte_eth_bond_xmit_policy_set(uint8_t bonded_port_id, uint8_t policy)
 620 {
 621         struct bond_dev_private *internals;
 622
 623         if (valid_bonded_port_id(bonded_port_id) != 0)
 624                 return -1;
 625
 626         internals = rte_eth_devices[bonded_port_id].data->dev_private;
 627
 628         switch (policy) {
 629         case BALANCE_XMIT_POLICY_LAYER2:
 630         case BALANCE_XMIT_POLICY_LAYER23:
 631         case BALANCE_XMIT_POLICY_LAYER34:
 632                 internals->balance_xmit_policy = policy;
 633                 break;
 634
 635         default:
 636                 return -1;
 637         }
 638         return 0;
 639 }
 640
 641 int
 642 rte_eth_bond_xmit_policy_get(uint8_t bonded_port_id)
 643 {
 644         struct bond_dev_private *internals;
 645
 646         if (valid_bonded_port_id(bonded_port_id) != 0)
 647                 return -1;
 648
 649         internals = rte_eth_devices[bonded_port_id].data->dev_private;
 650
 651         return internals->balance_xmit_policy;
 652 }