drivers/net/bonding/rte_eth_bond_api.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_mbuf.h>
  37 #include <rte_malloc.h>
  38 #include <rte_ethdev.h>
  39 #include <rte_tcp.h>
  40
  41 #include "rte_eth_bond.h"
  42 #include "rte_eth_bond_private.h"
  43 #include "rte_eth_bond_8023ad_private.h"
  44
  45 #define DEFAULT_POLLING_INTERVAL_10_MS (10)
  46
  47 const char pmd_bond_driver_name[] = "rte_bond_pmd";
  48
  49 int
  50 check_for_bonded_ethdev(const struct rte_eth_dev *eth_dev)
  51 {
  52         /* Check valid pointer */
  53         if (eth_dev->data->drv_name == NULL)
  54                 return -1;
  55
  56         /* return 0 if driver name matches */
  57         return eth_dev->data->drv_name != pmd_bond_driver_name;
  58 }
  59
  60 int
  61 valid_bonded_port_id(uint8_t port_id)
  62 {
  63         RTE_ETH_VALID_PORTID_OR_ERR_RET(port_id, -1);
  64         return check_for_bonded_ethdev(&rte_eth_devices[port_id]);
  65 }
  66
  67 int
  68 valid_slave_port_id(uint8_t port_id)
  69 {
  70         RTE_ETH_VALID_PORTID_OR_ERR_RET(port_id, -1);
  71
  72         /* Verify that port_id refers to a non bonded port */
  73         if (check_for_bonded_ethdev(&rte_eth_devices[port_id]) == 0)
  74                 return -1;
  75
  76         return 0;
  77 }
  78
  79 void
  80 activate_slave(struct rte_eth_dev *eth_dev, uint8_t port_id)
  81 {
  82         struct bond_dev_private *internals = eth_dev->data->dev_private;
  83         uint8_t active_count = internals->active_slave_count;
  84
  85         if (internals->mode == BONDING_MODE_8023AD)
  86                 bond_mode_8023ad_activate_slave(eth_dev, port_id);
  87
  88         if (internals->mode == BONDING_MODE_TLB
  89                         || internals->mode == BONDING_MODE_ALB) {
  90
  91                 internals->tlb_slaves_order[active_count] = port_id;
  92         }
  93
  94         RTE_ASSERT(internals->active_slave_count <
  95                         (RTE_DIM(internals->active_slaves) - 1));
  96
  97         internals->active_slaves[internals->active_slave_count] = port_id;
  98         internals->active_slave_count++;
  99
 100         if (internals->mode == BONDING_MODE_TLB)
 101                 bond_tlb_activate_slave(internals);
 102         if (internals->mode == BONDING_MODE_ALB)
 103                 bond_mode_alb_client_list_upd(eth_dev);
 104 }
 105
 106 void
 107 deactivate_slave(struct rte_eth_dev *eth_dev, uint8_t port_id)
 108 {
 109         uint8_t slave_pos;
 110         struct bond_dev_private *internals = eth_dev->data->dev_private;
 111         uint8_t active_count = internals->active_slave_count;
 112
 113         if (internals->mode == BONDING_MODE_8023AD) {
 114                 bond_mode_8023ad_stop(eth_dev);
 115                 bond_mode_8023ad_deactivate_slave(eth_dev, port_id);
 116         } else if (internals->mode == BONDING_MODE_TLB
 117                         || internals->mode == BONDING_MODE_ALB)
 118                 bond_tlb_disable(internals);
 119
 120         slave_pos = find_slave_by_id(internals->active_slaves, active_count,
 121                         port_id);
 122
 123         /* If slave was not at the end of the list
 124          * shift active slaves up active array list */
 125         if (slave_pos < active_count) {
 126                 active_count--;
 127                 memmove(internals->active_slaves + slave_pos,
 128                                 internals->active_slaves + slave_pos + 1,
 129                                 (active_count - slave_pos) *
 130                                         sizeof(internals->active_slaves[0]));
 131         }
 132
 133         RTE_ASSERT(active_count < RTE_DIM(internals->active_slaves));
 134         internals->active_slave_count = active_count;
 135
 136         if (eth_dev->data->dev_started) {
 137                 if (internals->mode == BONDING_MODE_8023AD) {
 138                         bond_mode_8023ad_start(eth_dev);
 139                 } else if (internals->mode == BONDING_MODE_TLB) {
 140                         bond_tlb_enable(internals);
 141                 } else if (internals->mode == BONDING_MODE_ALB) {
 142                         bond_tlb_enable(internals);
 143                         bond_mode_alb_client_list_upd(eth_dev);
 144                 }
 145         }
 146 }
 147
 148 uint8_t
 149 number_of_sockets(void)
 150 {
 151         int sockets = 0;
 152         int i;
 153         const struct rte_memseg *ms = rte_eal_get_physmem_layout();
 154
 155         for (i = 0; ((i < RTE_MAX_MEMSEG) && (ms[i].addr != NULL)); i++) {
 156                 if (sockets < ms[i].socket_id)
 157                         sockets = ms[i].socket_id;
 158         }
 159
 160         /* Number of sockets = maximum socket_id + 1 */
 161         return ++sockets;
 162 }
 163
 164 int
 165 rte_eth_bond_create(const char *name, uint8_t mode, uint8_t socket_id)
 166 {
 167         struct bond_dev_private *internals = NULL;
 168         struct rte_eth_dev *eth_dev = NULL;
 169         uint32_t vlan_filter_bmp_size;
 170
 171         /* now do all data allocation - for eth_dev structure, dummy pci driver
 172          * and internal (private) data
 173          */
 174
 175         if (name == NULL) {
 176                 RTE_BOND_LOG(ERR, "Invalid name specified");
 177                 goto err;
 178         }
 179
 180         if (socket_id >= number_of_sockets()) {
 181                 RTE_BOND_LOG(ERR,
 182                                 "Invalid socket id specified to create bonded device on.");
 183                 goto err;
 184         }
 185
 186         internals = rte_zmalloc_socket(name, sizeof(*internals), 0, socket_id);
 187         if (internals == NULL) {
 188                 RTE_BOND_LOG(ERR, "Unable to malloc internals on socket");
 189                 goto err;
 190         }
 191
 192         /* reserve an ethdev entry */
 193         eth_dev = rte_eth_dev_allocate(name);
 194         if (eth_dev == NULL) {
 195                 RTE_BOND_LOG(ERR, "Unable to allocate rte_eth_dev");
 196                 goto err;
 197         }
 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         TAILQ_INIT(&(eth_dev->link_intr_cbs));
 204
 205         eth_dev->data->dev_link.link_status = ETH_LINK_DOWN;
 206
 207         eth_dev->data->mac_addrs = rte_zmalloc_socket(name, ETHER_ADDR_LEN, 0,
 208                         socket_id);
 209         if (eth_dev->data->mac_addrs == NULL) {
 210                 RTE_BOND_LOG(ERR, "Unable to malloc mac_addrs");
 211                 goto err;
 212         }
 213
 214         eth_dev->data->dev_started = 0;
 215         eth_dev->data->promiscuous = 0;
 216         eth_dev->data->scattered_rx = 0;
 217         eth_dev->data->all_multicast = 0;
 218
 219         eth_dev->dev_ops = &default_dev_ops;
 220         eth_dev->data->dev_flags = RTE_ETH_DEV_INTR_LSC |
 221                 RTE_ETH_DEV_DETACHABLE;
 222         eth_dev->driver = NULL;
 223         eth_dev->data->kdrv = RTE_KDRV_NONE;
 224         eth_dev->data->drv_name = pmd_bond_driver_name;
 225         eth_dev->data->numa_node =  socket_id;
 226
 227         rte_spinlock_init(&internals->lock);
 228
 229         internals->port_id = eth_dev->data->port_id;
 230         internals->mode = BONDING_MODE_INVALID;
 231         internals->current_primary_port = RTE_MAX_ETHPORTS + 1;
 232         internals->balance_xmit_policy = BALANCE_XMIT_POLICY_LAYER2;
 233         internals->xmit_hash = xmit_l2_hash;
 234         internals->user_defined_mac = 0;
 235         internals->link_props_set = 0;
 236
 237         internals->link_status_polling_enabled = 0;
 238
 239         internals->link_status_polling_interval_ms = DEFAULT_POLLING_INTERVAL_10_MS;
 240         internals->link_down_delay_ms = 0;
 241         internals->link_up_delay_ms = 0;
 242
 243         internals->slave_count = 0;
 244         internals->active_slave_count = 0;
 245         internals->rx_offload_capa = 0;
 246         internals->tx_offload_capa = 0;
 247         internals->candidate_max_rx_pktlen = 0;
 248         internals->max_rx_pktlen = 0;
 249
 250         /* Initially allow to choose any offload type */
 251         internals->flow_type_rss_offloads = ETH_RSS_PROTO_MASK;
 252
 253         memset(internals->active_slaves, 0, sizeof(internals->active_slaves));
 254         memset(internals->slaves, 0, sizeof(internals->slaves));
 255
 256         /* Set mode 4 default configuration */
 257         bond_mode_8023ad_setup(eth_dev, NULL);
 258         if (bond_ethdev_mode_set(eth_dev, mode)) {
 259                 RTE_BOND_LOG(ERR, "Failed to set bonded device %d mode too %d",
 260                                  eth_dev->data->port_id, mode);
 261                 goto err;
 262         }
 263
 264         vlan_filter_bmp_size =
 265                 rte_bitmap_get_memory_footprint(ETHER_MAX_VLAN_ID + 1);
 266         internals->vlan_filter_bmpmem = rte_malloc(name, vlan_filter_bmp_size,
 267                                                    RTE_CACHE_LINE_SIZE);
 268         if (internals->vlan_filter_bmpmem == NULL) {
 269                 RTE_BOND_LOG(ERR,
 270                              "Failed to allocate vlan bitmap for bonded device %u\n",
 271                              eth_dev->data->port_id);
 272                 goto err;
 273         }
 274
 275         internals->vlan_filter_bmp = rte_bitmap_init(ETHER_MAX_VLAN_ID + 1,
 276                         internals->vlan_filter_bmpmem, vlan_filter_bmp_size);
 277         if (internals->vlan_filter_bmp == NULL) {
 278                 RTE_BOND_LOG(ERR,
 279                              "Failed to init vlan bitmap for bonded device %u\n",
 280                              eth_dev->data->port_id);
 281                 rte_free(internals->vlan_filter_bmpmem);
 282                 goto err;
 283         }
 284
 285         return eth_dev->data->port_id;
 286
 287 err:
 288         rte_free(internals);
 289         if (eth_dev != NULL) {
 290                 rte_free(eth_dev->data->mac_addrs);
 291                 rte_eth_dev_release_port(eth_dev);
 292         }
 293         return -1;
 294 }
 295
 296 int
 297 rte_eth_bond_free(const char *name)
 298 {
 299         struct rte_eth_dev *eth_dev = NULL;
 300         struct bond_dev_private *internals;
 301
 302         /* now free all data allocation - for eth_dev structure,
 303          * dummy pci driver and internal (private) data
 304          */
 305
 306         /* find an ethdev entry */
 307         eth_dev = rte_eth_dev_allocated(name);
 308         if (eth_dev == NULL)
 309                 return -ENODEV;
 310
 311         internals = eth_dev->data->dev_private;
 312         if (internals->slave_count != 0)
 313                 return -EBUSY;
 314
 315         if (eth_dev->data->dev_started == 1) {
 316                 bond_ethdev_stop(eth_dev);
 317                 bond_ethdev_close(eth_dev);
 318         }
 319
 320         eth_dev->dev_ops = NULL;
 321         eth_dev->rx_pkt_burst = NULL;
 322         eth_dev->tx_pkt_burst = NULL;
 323
 324         internals = eth_dev->data->dev_private;
 325         rte_bitmap_free(internals->vlan_filter_bmp);
 326         rte_free(internals->vlan_filter_bmpmem);
 327         rte_free(eth_dev->data->dev_private);
 328         rte_free(eth_dev->data->mac_addrs);
 329
 330         rte_eth_dev_release_port(eth_dev);
 331
 332         return 0;
 333 }
 334
 335 static int
 336 slave_vlan_filter_set(uint8_t bonded_port_id, uint8_t slave_port_id)
 337 {
 338         struct rte_eth_dev *bonded_eth_dev;
 339         struct bond_dev_private *internals;
 340         int found;
 341         int res = 0;
 342         uint64_t slab = 0;
 343         uint32_t pos = 0;
 344         uint16_t first;
 345
 346         bonded_eth_dev = &rte_eth_devices[bonded_port_id];
 347         if (bonded_eth_dev->data->dev_conf.rxmode.hw_vlan_filter == 0)
 348                 return 0;
 349
 350         internals = bonded_eth_dev->data->dev_private;
 351         found = rte_bitmap_scan(internals->vlan_filter_bmp, &pos, &slab);
 352         first = pos;
 353
 354         if (!found)
 355                 return 0;
 356
 357         do {
 358                 uint32_t i;
 359                 uint64_t mask;
 360
 361                 for (i = 0, mask = 1;
 362                      i < RTE_BITMAP_SLAB_BIT_SIZE;
 363                      i ++, mask <<= 1) {
 364                         if (unlikely(slab & mask))
 365                                 res = rte_eth_dev_vlan_filter(slave_port_id,
 366                                                               (uint16_t)pos, 1);
 367                 }
 368                 found = rte_bitmap_scan(internals->vlan_filter_bmp,
 369                                         &pos, &slab);
 370         } while (found && first != pos && res == 0);
 371
 372         return res;
 373 }
 374
 375 static int
 376 __eth_bond_slave_add_lock_free(uint8_t bonded_port_id, uint8_t slave_port_id)
 377 {
 378         struct rte_eth_dev *bonded_eth_dev, *slave_eth_dev;
 379         struct bond_dev_private *internals;
 380         struct rte_eth_link link_props;
 381         struct rte_eth_dev_info dev_info;
 382
 383         if (valid_slave_port_id(slave_port_id) != 0)
 384                 return -1;
 385
 386         bonded_eth_dev = &rte_eth_devices[bonded_port_id];
 387         internals = bonded_eth_dev->data->dev_private;
 388
 389         slave_eth_dev = &rte_eth_devices[slave_port_id];
 390         if (slave_eth_dev->data->dev_flags & RTE_ETH_DEV_BONDED_SLAVE) {
 391                 RTE_BOND_LOG(ERR, "Slave device is already a slave of a bonded device");
 392                 return -1;
 393         }
 394
 395         /* Add slave details to bonded device */
 396         slave_eth_dev->data->dev_flags |= RTE_ETH_DEV_BONDED_SLAVE;
 397
 398         rte_eth_dev_info_get(slave_port_id, &dev_info);
 399         if (dev_info.max_rx_pktlen < internals->max_rx_pktlen) {
 400                 RTE_BOND_LOG(ERR, "Slave (port %u) max_rx_pktlen too small",
 401                              slave_port_id);
 402                 return -1;
 403         }
 404
 405         slave_add(internals, slave_eth_dev);
 406
 407         /* We need to store slaves reta_size to be able to synchronize RETA for all
 408          * slave devices even if its sizes are different.
 409          */
 410         internals->slaves[internals->slave_count].reta_size = dev_info.reta_size;
 411
 412         if (internals->slave_count < 1) {
 413                 /* if MAC is not user defined then use MAC of first slave add to
 414                  * bonded device */
 415                 if (!internals->user_defined_mac) {
 416                         if (mac_address_set(bonded_eth_dev,
 417                                             slave_eth_dev->data->mac_addrs)) {
 418                                 RTE_BOND_LOG(ERR, "Failed to set MAC address");
 419                                 return -1;
 420                         }
 421                 }
 422
 423                 /* Inherit eth dev link properties from first slave */
 424                 link_properties_set(bonded_eth_dev,
 425                                 &(slave_eth_dev->data->dev_link));
 426
 427                 /* Make primary slave */
 428                 internals->primary_port = slave_port_id;
 429                 internals->current_primary_port = slave_port_id;
 430
 431                 /* Inherit queues settings from first slave */
 432                 internals->nb_rx_queues = slave_eth_dev->data->nb_rx_queues;
 433                 internals->nb_tx_queues = slave_eth_dev->data->nb_tx_queues;
 434
 435                 internals->reta_size = dev_info.reta_size;
 436
 437                 /* Take the first dev's offload capabilities */
 438                 internals->rx_offload_capa = dev_info.rx_offload_capa;
 439                 internals->tx_offload_capa = dev_info.tx_offload_capa;
 440                 internals->flow_type_rss_offloads = dev_info.flow_type_rss_offloads;
 441
 442                 /* Inherit first slave's max rx packet size */
 443                 internals->candidate_max_rx_pktlen = dev_info.max_rx_pktlen;
 444
 445         } else {
 446                 internals->rx_offload_capa &= dev_info.rx_offload_capa;
 447                 internals->tx_offload_capa &= dev_info.tx_offload_capa;
 448                 internals->flow_type_rss_offloads &= dev_info.flow_type_rss_offloads;
 449
 450                 /* RETA size is GCD of all slaves RETA sizes, so, if all sizes will be
 451                  * the power of 2, the lower one is GCD
 452                  */
 453                 if (internals->reta_size > dev_info.reta_size)
 454                         internals->reta_size = dev_info.reta_size;
 455
 456                 if (!internals->max_rx_pktlen &&
 457                     dev_info.max_rx_pktlen < internals->candidate_max_rx_pktlen)
 458                         internals->candidate_max_rx_pktlen = dev_info.max_rx_pktlen;
 459         }
 460
 461         bonded_eth_dev->data->dev_conf.rx_adv_conf.rss_conf.rss_hf &=
 462                         internals->flow_type_rss_offloads;
 463
 464         internals->slave_count++;
 465
 466         /* Update all slave devices MACs*/
 467         mac_address_slaves_update(bonded_eth_dev);
 468
 469         if (bonded_eth_dev->data->dev_started) {
 470                 if (slave_configure(bonded_eth_dev, slave_eth_dev) != 0) {
 471                         slave_eth_dev->data->dev_flags &= (~RTE_ETH_DEV_BONDED_SLAVE);
 472                         RTE_BOND_LOG(ERR, "rte_bond_slaves_configure: port=%d",
 473                                         slave_port_id);
 474                         return -1;
 475                 }
 476         }
 477
 478         /* Register link status change callback with bonded device pointer as
 479          * argument*/
 480         rte_eth_dev_callback_register(slave_port_id, RTE_ETH_EVENT_INTR_LSC,
 481                         bond_ethdev_lsc_event_callback, &bonded_eth_dev->data->port_id);
 482
 483         /* If bonded device is started then we can add the slave to our active
 484          * slave array */
 485         if (bonded_eth_dev->data->dev_started) {
 486                 rte_eth_link_get_nowait(slave_port_id, &link_props);
 487
 488                  if (link_props.link_status == ETH_LINK_UP) {
 489                         if (internals->active_slave_count == 0 &&
 490                             !internals->user_defined_primary_port)
 491                                 bond_ethdev_primary_set(internals,
 492                                                         slave_port_id);
 493
 494                         if (find_slave_by_id(internals->active_slaves,
 495                                              internals->active_slave_count,
 496                                              slave_port_id) == internals->active_slave_count)
 497                                 activate_slave(bonded_eth_dev, slave_port_id);
 498                 }
 499         }
 500
 501         slave_vlan_filter_set(bonded_port_id, slave_port_id);
 502
 503         return 0;
 504
 505 }
 506
 507 int
 508 rte_eth_bond_slave_add(uint8_t bonded_port_id, uint8_t slave_port_id)
 509 {
 510         struct rte_eth_dev *bonded_eth_dev;
 511         struct bond_dev_private *internals;
 512
 513         int retval;
 514
 515         /* Verify that port id's are valid bonded and slave ports */
 516         if (valid_bonded_port_id(bonded_port_id) != 0)
 517                 return -1;
 518
 519         bonded_eth_dev = &rte_eth_devices[bonded_port_id];
 520         internals = bonded_eth_dev->data->dev_private;
 521
 522         rte_spinlock_lock(&internals->lock);
 523
 524         retval = __eth_bond_slave_add_lock_free(bonded_port_id, slave_port_id);
 525
 526         rte_spinlock_unlock(&internals->lock);
 527
 528         return retval;
 529 }
 530
 531 static int
 532 __eth_bond_slave_remove_lock_free(uint8_t bonded_port_id, uint8_t slave_port_id)
 533 {
 534         struct rte_eth_dev *bonded_eth_dev;
 535         struct bond_dev_private *internals;
 536         struct rte_eth_dev *slave_eth_dev;
 537         int i, slave_idx;
 538
 539         if (valid_slave_port_id(slave_port_id) != 0)
 540                 return -1;
 541
 542         bonded_eth_dev = &rte_eth_devices[bonded_port_id];
 543         internals = bonded_eth_dev->data->dev_private;
 544
 545         /* first remove from active slave list */
 546         slave_idx = find_slave_by_id(internals->active_slaves,
 547                 internals->active_slave_count, slave_port_id);
 548
 549         if (slave_idx < internals->active_slave_count)
 550                 deactivate_slave(bonded_eth_dev, slave_port_id);
 551
 552         slave_idx = -1;
 553         /* now find in slave list */
 554         for (i = 0; i < internals->slave_count; i++)
 555                 if (internals->slaves[i].port_id == slave_port_id) {
 556                         slave_idx = i;
 557                         break;
 558                 }
 559
 560         if (slave_idx < 0) {
 561                 RTE_BOND_LOG(ERR, "Couldn't find slave in port list, slave count %d",
 562                                 internals->slave_count);
 563                 return -1;
 564         }
 565
 566         /* Un-register link status change callback with bonded device pointer as
 567          * argument*/
 568         rte_eth_dev_callback_unregister(slave_port_id, RTE_ETH_EVENT_INTR_LSC,
 569                         bond_ethdev_lsc_event_callback,
 570                         &rte_eth_devices[bonded_port_id].data->port_id);
 571
 572         /* Restore original MAC address of slave device */
 573         rte_eth_dev_default_mac_addr_set(slave_port_id,
 574                         &(internals->slaves[slave_idx].persisted_mac_addr));
 575
 576         slave_eth_dev = &rte_eth_devices[slave_port_id];
 577         slave_remove(internals, slave_eth_dev);
 578         slave_eth_dev->data->dev_flags &= (~RTE_ETH_DEV_BONDED_SLAVE);
 579
 580         /*  first slave in the active list will be the primary by default,
 581          *  otherwise use first device in list */
 582         if (internals->current_primary_port == slave_port_id) {
 583                 if (internals->active_slave_count > 0)
 584                         internals->current_primary_port = internals->active_slaves[0];
 585                 else if (internals->slave_count > 0)
 586                         internals->current_primary_port = internals->slaves[0].port_id;
 587                 else
 588                         internals->primary_port = 0;
 589         }
 590
 591         if (internals->active_slave_count < 1) {
 592                 /* reset device link properties as no slaves are active */
 593                 link_properties_reset(&rte_eth_devices[bonded_port_id]);
 594
 595                 /* if no slaves are any longer attached to bonded device and MAC is not
 596                  * user defined then clear MAC of bonded device as it will be reset
 597                  * when a new slave is added */
 598                 if (internals->slave_count < 1 && !internals->user_defined_mac)
 599                         memset(rte_eth_devices[bonded_port_id].data->mac_addrs, 0,
 600                                         sizeof(*(rte_eth_devices[bonded_port_id].data->mac_addrs)));
 601         }
 602         if (internals->slave_count == 0) {
 603                 internals->rx_offload_capa = 0;
 604                 internals->tx_offload_capa = 0;
 605                 internals->flow_type_rss_offloads = ETH_RSS_PROTO_MASK;
 606                 internals->reta_size = 0;
 607                 internals->candidate_max_rx_pktlen = 0;
 608                 internals->max_rx_pktlen = 0;
 609         }
 610         return 0;
 611 }
 612
 613 int
 614 rte_eth_bond_slave_remove(uint8_t bonded_port_id, uint8_t slave_port_id)
 615 {
 616         struct rte_eth_dev *bonded_eth_dev;
 617         struct bond_dev_private *internals;
 618         int retval;
 619
 620         if (valid_bonded_port_id(bonded_port_id) != 0)
 621                 return -1;
 622
 623         bonded_eth_dev = &rte_eth_devices[bonded_port_id];
 624         internals = bonded_eth_dev->data->dev_private;
 625
 626         rte_spinlock_lock(&internals->lock);
 627
 628         retval = __eth_bond_slave_remove_lock_free(bonded_port_id, slave_port_id);
 629
 630         rte_spinlock_unlock(&internals->lock);
 631
 632         return retval;
 633 }
 634
 635 int
 636 rte_eth_bond_mode_set(uint8_t bonded_port_id, uint8_t mode)
 637 {
 638         if (valid_bonded_port_id(bonded_port_id) != 0)
 639                 return -1;
 640
 641         return bond_ethdev_mode_set(&rte_eth_devices[bonded_port_id], mode);
 642 }
 643
 644 int
 645 rte_eth_bond_mode_get(uint8_t bonded_port_id)
 646 {
 647         struct bond_dev_private *internals;
 648
 649         if (valid_bonded_port_id(bonded_port_id) != 0)
 650                 return -1;
 651
 652         internals = rte_eth_devices[bonded_port_id].data->dev_private;
 653
 654         return internals->mode;
 655 }
 656
 657 int
 658 rte_eth_bond_primary_set(uint8_t bonded_port_id, uint8_t slave_port_id)
 659 {
 660         struct bond_dev_private *internals;
 661
 662         if (valid_bonded_port_id(bonded_port_id) != 0)
 663                 return -1;
 664
 665         if (valid_slave_port_id(slave_port_id) != 0)
 666                 return -1;
 667
 668         internals =  rte_eth_devices[bonded_port_id].data->dev_private;
 669
 670         internals->user_defined_primary_port = 1;
 671         internals->primary_port = slave_port_id;
 672
 673         bond_ethdev_primary_set(internals, slave_port_id);
 674
 675         return 0;
 676 }
 677
 678 int
 679 rte_eth_bond_primary_get(uint8_t bonded_port_id)
 680 {
 681         struct bond_dev_private *internals;
 682
 683         if (valid_bonded_port_id(bonded_port_id) != 0)
 684                 return -1;
 685
 686         internals = rte_eth_devices[bonded_port_id].data->dev_private;
 687
 688         if (internals->slave_count < 1)
 689                 return -1;
 690
 691         return internals->current_primary_port;
 692 }
 693
 694 int
 695 rte_eth_bond_slaves_get(uint8_t bonded_port_id, uint8_t slaves[], uint8_t len)
 696 {
 697         struct bond_dev_private *internals;
 698         uint8_t i;
 699
 700         if (valid_bonded_port_id(bonded_port_id) != 0)
 701                 return -1;
 702
 703         if (slaves == NULL)
 704                 return -1;
 705
 706         internals = rte_eth_devices[bonded_port_id].data->dev_private;
 707
 708         if (internals->slave_count > len)
 709                 return -1;
 710
 711         for (i = 0; i < internals->slave_count; i++)
 712                 slaves[i] = internals->slaves[i].port_id;
 713
 714         return internals->slave_count;
 715 }
 716
 717 int
 718 rte_eth_bond_active_slaves_get(uint8_t bonded_port_id, uint8_t slaves[],
 719                 uint8_t len)
 720 {
 721         struct bond_dev_private *internals;
 722
 723         if (valid_bonded_port_id(bonded_port_id) != 0)
 724                 return -1;
 725
 726         if (slaves == NULL)
 727                 return -1;
 728
 729         internals = rte_eth_devices[bonded_port_id].data->dev_private;
 730
 731         if (internals->active_slave_count > len)
 732                 return -1;
 733
 734         memcpy(slaves, internals->active_slaves, internals->active_slave_count);
 735
 736         return internals->active_slave_count;
 737 }
 738
 739 int
 740 rte_eth_bond_mac_address_set(uint8_t bonded_port_id,
 741                 struct ether_addr *mac_addr)
 742 {
 743         struct rte_eth_dev *bonded_eth_dev;
 744         struct bond_dev_private *internals;
 745
 746         if (valid_bonded_port_id(bonded_port_id) != 0)
 747                 return -1;
 748
 749         bonded_eth_dev = &rte_eth_devices[bonded_port_id];
 750         internals = bonded_eth_dev->data->dev_private;
 751
 752         /* Set MAC Address of Bonded Device */
 753         if (mac_address_set(bonded_eth_dev, mac_addr))
 754                 return -1;
 755
 756         internals->user_defined_mac = 1;
 757
 758         /* Update all slave devices MACs*/
 759         if (internals->slave_count > 0)
 760                 return mac_address_slaves_update(bonded_eth_dev);
 761
 762         return 0;
 763 }
 764
 765 int
 766 rte_eth_bond_mac_address_reset(uint8_t bonded_port_id)
 767 {
 768         struct rte_eth_dev *bonded_eth_dev;
 769         struct bond_dev_private *internals;
 770
 771         if (valid_bonded_port_id(bonded_port_id) != 0)
 772                 return -1;
 773
 774         bonded_eth_dev = &rte_eth_devices[bonded_port_id];
 775         internals = bonded_eth_dev->data->dev_private;
 776
 777         internals->user_defined_mac = 0;
 778
 779         if (internals->slave_count > 0) {
 780                 /* Set MAC Address of Bonded Device */
 781                 if (mac_address_set(bonded_eth_dev,
 782                                 &internals->slaves[internals->primary_port].persisted_mac_addr)
 783                                 != 0) {
 784                         RTE_BOND_LOG(ERR, "Failed to set MAC address on bonded device");
 785                         return -1;
 786                 }
 787                 /* Update all slave devices MAC addresses */
 788                 return mac_address_slaves_update(bonded_eth_dev);
 789         }
 790         /* No need to update anything as no slaves present */
 791         return 0;
 792 }
 793
 794 int
 795 rte_eth_bond_xmit_policy_set(uint8_t bonded_port_id, uint8_t policy)
 796 {
 797         struct bond_dev_private *internals;
 798
 799         if (valid_bonded_port_id(bonded_port_id) != 0)
 800                 return -1;
 801
 802         internals = rte_eth_devices[bonded_port_id].data->dev_private;
 803
 804         switch (policy) {
 805         case BALANCE_XMIT_POLICY_LAYER2:
 806                 internals->balance_xmit_policy = policy;
 807                 internals->xmit_hash = xmit_l2_hash;
 808                 break;
 809         case BALANCE_XMIT_POLICY_LAYER23:
 810                 internals->balance_xmit_policy = policy;
 811                 internals->xmit_hash = xmit_l23_hash;
 812                 break;
 813         case BALANCE_XMIT_POLICY_LAYER34:
 814                 internals->balance_xmit_policy = policy;
 815                 internals->xmit_hash = xmit_l34_hash;
 816                 break;
 817
 818         default:
 819                 return -1;
 820         }
 821         return 0;
 822 }
 823
 824 int
 825 rte_eth_bond_xmit_policy_get(uint8_t bonded_port_id)
 826 {
 827         struct bond_dev_private *internals;
 828
 829         if (valid_bonded_port_id(bonded_port_id) != 0)
 830                 return -1;
 831
 832         internals = rte_eth_devices[bonded_port_id].data->dev_private;
 833
 834         return internals->balance_xmit_policy;
 835 }
 836
 837 int
 838 rte_eth_bond_link_monitoring_set(uint8_t bonded_port_id, uint32_t internal_ms)
 839 {
 840         struct bond_dev_private *internals;
 841
 842         if (valid_bonded_port_id(bonded_port_id) != 0)
 843                 return -1;
 844
 845         internals = rte_eth_devices[bonded_port_id].data->dev_private;
 846         internals->link_status_polling_interval_ms = internal_ms;
 847
 848         return 0;
 849 }
 850
 851 int
 852 rte_eth_bond_link_monitoring_get(uint8_t bonded_port_id)
 853 {
 854         struct bond_dev_private *internals;
 855
 856         if (valid_bonded_port_id(bonded_port_id) != 0)
 857                 return -1;
 858
 859         internals = rte_eth_devices[bonded_port_id].data->dev_private;
 860
 861         return internals->link_status_polling_interval_ms;
 862 }
 863
 864 int
 865 rte_eth_bond_link_down_prop_delay_set(uint8_t bonded_port_id, uint32_t delay_ms)
 866
 867 {
 868         struct bond_dev_private *internals;
 869
 870         if (valid_bonded_port_id(bonded_port_id) != 0)
 871                 return -1;
 872
 873         internals = rte_eth_devices[bonded_port_id].data->dev_private;
 874         internals->link_down_delay_ms = delay_ms;
 875
 876         return 0;
 877 }
 878
 879 int
 880 rte_eth_bond_link_down_prop_delay_get(uint8_t bonded_port_id)
 881 {
 882         struct bond_dev_private *internals;
 883
 884         if (valid_bonded_port_id(bonded_port_id) != 0)
 885                 return -1;
 886
 887         internals = rte_eth_devices[bonded_port_id].data->dev_private;
 888
 889         return internals->link_down_delay_ms;
 890 }
 891
 892 int
 893 rte_eth_bond_link_up_prop_delay_set(uint8_t bonded_port_id, uint32_t delay_ms)
 894
 895 {
 896         struct bond_dev_private *internals;
 897
 898         if (valid_bonded_port_id(bonded_port_id) != 0)
 899                 return -1;
 900
 901         internals = rte_eth_devices[bonded_port_id].data->dev_private;
 902         internals->link_up_delay_ms = delay_ms;
 903
 904         return 0;
 905 }
 906
 907 int
 908 rte_eth_bond_link_up_prop_delay_get(uint8_t bonded_port_id)
 909 {
 910         struct bond_dev_private *internals;
 911
 912         if (valid_bonded_port_id(bonded_port_id) != 0)
 913                 return -1;
 914
 915         internals = rte_eth_devices[bonded_port_id].data->dev_private;
 916
 917         return internals->link_up_delay_ms;
 918 }