drivers/net/bonding/rte_eth_bond_8023ad.c

   1 /*-
   2  *   BSD LICENSE
   3  *
   4  *   Copyright(c) 2010-2015 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 <stddef.h>
  35 #include <string.h>
  36 #include <stdbool.h>
  37
  38 #include <rte_alarm.h>
  39 #include <rte_malloc.h>
  40 #include <rte_errno.h>
  41 #include <rte_cycles.h>
  42 #include <rte_compat.h>
  43
  44 #include "rte_eth_bond_private.h"
  45
  46 static void bond_mode_8023ad_ext_periodic_cb(void *arg);
  47
  48 #ifdef RTE_LIBRTE_BOND_DEBUG_8023AD
  49 #define MODE4_DEBUG(fmt, ...) RTE_LOG(DEBUG, PMD, "%6u [Port %u: %s] " fmt, \
  50                         bond_dbg_get_time_diff_ms(), slave_id, \
  51                         __func__, ##__VA_ARGS__)
  52
  53 static uint64_t start_time;
  54
  55 static unsigned
  56 bond_dbg_get_time_diff_ms(void)
  57 {
  58         uint64_t now;
  59
  60         now = rte_rdtsc();
  61         if (start_time == 0)
  62                 start_time = now;
  63
  64         return ((now - start_time) * 1000) / rte_get_tsc_hz();
  65 }
  66
  67 static void
  68 bond_print_lacp(struct lacpdu *l)
  69 {
  70         char a_address[18];
  71         char p_address[18];
  72         char a_state[256] = { 0 };
  73         char p_state[256] = { 0 };
  74
  75         static const char * const state_labels[] = {
  76                 "ACT", "TIMEOUT", "AGG", "SYNC", "COL", "DIST", "DEF", "EXP"
  77         };
  78
  79         int a_len = 0;
  80         int p_len = 0;
  81         uint8_t i;
  82         uint8_t *addr;
  83
  84         addr = l->actor.port_params.system.addr_bytes;
  85         snprintf(a_address, sizeof(a_address), "%02X:%02X:%02X:%02X:%02X:%02X",
  86                 addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]);
  87
  88         addr = l->partner.port_params.system.addr_bytes;
  89         snprintf(p_address, sizeof(p_address), "%02X:%02X:%02X:%02X:%02X:%02X",
  90                 addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]);
  91
  92         for (i = 0; i < 8; i++) {
  93                 if ((l->actor.state >> i) & 1) {
  94                         a_len += snprintf(&a_state[a_len], RTE_DIM(a_state) - a_len, "%s ",
  95                                 state_labels[i]);
  96                 }
  97
  98                 if ((l->partner.state >> i) & 1) {
  99                         p_len += snprintf(&p_state[p_len], RTE_DIM(p_state) - p_len, "%s ",
 100                                 state_labels[i]);
 101                 }
 102         }
 103
 104         if (a_len && a_state[a_len-1] == ' ')
 105                 a_state[a_len-1] = '\0';
 106
 107         if (p_len && p_state[p_len-1] == ' ')
 108                 p_state[p_len-1] = '\0';
 109
 110         RTE_LOG(DEBUG, PMD, "LACP: {\n"\
 111                         "  subtype= %02X\n"\
 112                         "  ver_num=%02X\n"\
 113                         "  actor={ tlv=%02X, len=%02X\n"\
 114                         "    pri=%04X, system=%s, key=%04X, p_pri=%04X p_num=%04X\n"\
 115                         "       state={ %s }\n"\
 116                         "  }\n"\
 117                         "  partner={ tlv=%02X, len=%02X\n"\
 118                         "    pri=%04X, system=%s, key=%04X, p_pri=%04X p_num=%04X\n"\
 119                         "       state={ %s }\n"\
 120                         "  }\n"\
 121                         "  collector={info=%02X, length=%02X, max_delay=%04X\n, " \
 122                                                         "type_term=%02X, terminator_length = %02X}\n",\
 123                         l->subtype,\
 124                         l->version_number,\
 125                         l->actor.tlv_type_info,\
 126                         l->actor.info_length,\
 127                         l->actor.port_params.system_priority,\
 128                         a_address,\
 129                         l->actor.port_params.key,\
 130                         l->actor.port_params.port_priority,\
 131                         l->actor.port_params.port_number,\
 132                         a_state,\
 133                         l->partner.tlv_type_info,\
 134                         l->partner.info_length,\
 135                         l->partner.port_params.system_priority,\
 136                         p_address,\
 137                         l->partner.port_params.key,\
 138                         l->partner.port_params.port_priority,\
 139                         l->partner.port_params.port_number,\
 140                         p_state,\
 141                         l->tlv_type_collector_info,\
 142                         l->collector_info_length,\
 143                         l->collector_max_delay,\
 144                         l->tlv_type_terminator,\
 145                         l->terminator_length);
 146
 147 }
 148 #define BOND_PRINT_LACP(lacpdu) bond_print_lacp(lacpdu)
 149 #else
 150 #define BOND_PRINT_LACP(lacpdu) do { } while (0)
 151 #define MODE4_DEBUG(fmt, ...) do { } while (0)
 152 #endif
 153
 154 static const struct ether_addr lacp_mac_addr = {
 155         .addr_bytes = { 0x01, 0x80, 0xC2, 0x00, 0x00, 0x02 }
 156 };
 157
 158 struct port mode_8023ad_ports[RTE_MAX_ETHPORTS];
 159
 160 static void
 161 timer_cancel(uint64_t *timer)
 162 {
 163         *timer = 0;
 164 }
 165
 166 static void
 167 timer_set(uint64_t *timer, uint64_t timeout)
 168 {
 169         *timer = rte_rdtsc() + timeout;
 170 }
 171
 172 /* Forces given timer to be in expired state. */
 173 static void
 174 timer_force_expired(uint64_t *timer)
 175 {
 176         *timer = rte_rdtsc();
 177 }
 178
 179 static bool
 180 timer_is_stopped(uint64_t *timer)
 181 {
 182         return *timer == 0;
 183 }
 184
 185 static bool
 186 timer_is_expired(uint64_t *timer)
 187 {
 188         return *timer < rte_rdtsc();
 189 }
 190
 191 /* Timer is in running state if it is not stopped nor expired */
 192 static bool
 193 timer_is_running(uint64_t *timer)
 194 {
 195         return !timer_is_stopped(timer) && !timer_is_expired(timer);
 196 }
 197
 198 static void
 199 set_warning_flags(struct port *port, uint16_t flags)
 200 {
 201         int retval;
 202         uint16_t old;
 203         uint16_t new_flag = 0;
 204
 205         do {
 206                 old = port->warnings_to_show;
 207                 new_flag = old | flags;
 208                 retval = rte_atomic16_cmpset(&port->warnings_to_show, old, new_flag);
 209         } while (unlikely(retval == 0));
 210 }
 211
 212 static void
 213 show_warnings(uint8_t slave_id)
 214 {
 215         struct port *port = &mode_8023ad_ports[slave_id];
 216         uint8_t warnings;
 217
 218         do {
 219                 warnings = port->warnings_to_show;
 220         } while (rte_atomic16_cmpset(&port->warnings_to_show, warnings, 0) == 0);
 221
 222         if (!warnings)
 223                 return;
 224
 225         if (!timer_is_expired(&port->warning_timer))
 226                 return;
 227
 228
 229         timer_set(&port->warning_timer, BOND_8023AD_WARNINGS_PERIOD_MS *
 230                         rte_get_tsc_hz() / 1000);
 231
 232         if (warnings & WRN_RX_QUEUE_FULL) {
 233                 RTE_LOG(DEBUG, PMD,
 234                         "Slave %u: failed to enqueue LACP packet into RX ring.\n"
 235                         "Receive and transmit functions must be invoked on bonded\n"
 236                         "interface at least 10 times per second or LACP will not\n"
 237                         "work correctly\n", slave_id);
 238         }
 239
 240         if (warnings & WRN_TX_QUEUE_FULL) {
 241                 RTE_LOG(DEBUG, PMD,
 242                         "Slave %u: failed to enqueue LACP packet into TX ring.\n"
 243                         "Receive and transmit functions must be invoked on bonded\n"
 244                         "interface at least 10 times per second or LACP will not\n"
 245                         "work correctly\n", slave_id);
 246         }
 247
 248         if (warnings & WRN_RX_MARKER_TO_FAST)
 249                 RTE_LOG(INFO, PMD, "Slave %u: marker to early - ignoring.\n", slave_id);
 250
 251         if (warnings & WRN_UNKNOWN_SLOW_TYPE) {
 252                 RTE_LOG(INFO, PMD,
 253                         "Slave %u: ignoring unknown slow protocol frame type", slave_id);
 254         }
 255
 256         if (warnings & WRN_UNKNOWN_MARKER_TYPE)
 257                 RTE_LOG(INFO, PMD, "Slave %u: ignoring unknown marker type", slave_id);
 258
 259         if (warnings & WRN_NOT_LACP_CAPABLE)
 260                 MODE4_DEBUG("Port %u is not LACP capable!\n", slave_id);
 261 }
 262
 263 static void
 264 record_default(struct port *port)
 265 {
 266         /* Record default parameters for partner. Partner admin parameters
 267          * are not implemented so set them to arbitrary default (last known) and
 268          * mark actor that parner is in defaulted state. */
 269         port->partner_state = STATE_LACP_ACTIVE;
 270         ACTOR_STATE_SET(port, DEFAULTED);
 271 }
 272
 273 /** Function handles rx state machine.
 274  *
 275  * This function implements Receive State Machine from point 5.4.12 in
 276  * 802.1AX documentation. It should be called periodically.
 277  *
 278  * @param lacpdu                LACPDU received.
 279  * @param port                  Port on which LACPDU was received.
 280  */
 281 static void
 282 rx_machine(struct bond_dev_private *internals, uint8_t slave_id,
 283                 struct lacpdu *lacp)
 284 {
 285         struct port *agg, *port = &mode_8023ad_ports[slave_id];
 286         uint64_t timeout;
 287
 288         if (SM_FLAG(port, BEGIN)) {
 289                 /* Initialize stuff */
 290                 MODE4_DEBUG("-> INITIALIZE\n");
 291                 SM_FLAG_CLR(port, MOVED);
 292                 port->selected = UNSELECTED;
 293
 294                 record_default(port);
 295
 296                 ACTOR_STATE_CLR(port, EXPIRED);
 297                 timer_cancel(&port->current_while_timer);
 298
 299                 /* DISABLED: On initialization partner is out of sync */
 300                 PARTNER_STATE_CLR(port, SYNCHRONIZATION);
 301
 302                 /* LACP DISABLED stuff if LACP not enabled on this port */
 303                 if (!SM_FLAG(port, LACP_ENABLED))
 304                         PARTNER_STATE_CLR(port, AGGREGATION);
 305                 else
 306                         PARTNER_STATE_SET(port, AGGREGATION);
 307         }
 308
 309         if (!SM_FLAG(port, LACP_ENABLED)) {
 310                 /* Update parameters only if state changed */
 311                 if (!timer_is_stopped(&port->current_while_timer)) {
 312                         port->selected = UNSELECTED;
 313                         record_default(port);
 314                         PARTNER_STATE_CLR(port, AGGREGATION);
 315                         ACTOR_STATE_CLR(port, EXPIRED);
 316                         timer_cancel(&port->current_while_timer);
 317                 }
 318                 return;
 319         }
 320
 321         if (lacp) {
 322                 MODE4_DEBUG("LACP -> CURRENT\n");
 323                 BOND_PRINT_LACP(lacp);
 324                 /* Update selected flag. If partner parameters are defaulted assume they
 325                  * are match. If not defaulted  compare LACP actor with ports parner
 326                  * params. */
 327                 if (!ACTOR_STATE(port, DEFAULTED) &&
 328                         (ACTOR_STATE(port, AGGREGATION) != PARTNER_STATE(port, AGGREGATION)
 329                         || memcmp(&port->partner, &lacp->actor.port_params,
 330                                 sizeof(port->partner)) != 0)) {
 331                         MODE4_DEBUG("selected <- UNSELECTED\n");
 332                         port->selected = UNSELECTED;
 333                 }
 334
 335                 /* Record this PDU actor params as partner params */
 336                 memcpy(&port->partner, &lacp->actor.port_params,
 337                         sizeof(struct port_params));
 338                 port->partner_state = lacp->actor.state;
 339
 340                 /* Partner parameters are not defaulted any more */
 341                 ACTOR_STATE_CLR(port, DEFAULTED);
 342
 343                 /* If LACP partner params match this port actor params */
 344                 agg = &mode_8023ad_ports[port->aggregator_port_id];
 345                 bool match = port->actor.system_priority ==
 346                         lacp->partner.port_params.system_priority &&
 347                         is_same_ether_addr(&agg->actor.system,
 348                         &lacp->partner.port_params.system) &&
 349                         port->actor.port_priority ==
 350                         lacp->partner.port_params.port_priority &&
 351                         port->actor.port_number ==
 352                         lacp->partner.port_params.port_number;
 353
 354                 /* Update NTT if partners information are outdated (xored and masked
 355                  * bits are set)*/
 356                 uint8_t state_mask = STATE_LACP_ACTIVE | STATE_LACP_SHORT_TIMEOUT |
 357                         STATE_SYNCHRONIZATION | STATE_AGGREGATION;
 358
 359                 if (((port->actor_state ^ lacp->partner.state) & state_mask) ||
 360                                 match == false) {
 361                         SM_FLAG_SET(port, NTT);
 362                 }
 363
 364                 /* If LACP partner params match this port actor params */
 365                 if (match == true && ACTOR_STATE(port, AGGREGATION) ==
 366                                 PARTNER_STATE(port,     AGGREGATION))
 367                         PARTNER_STATE_SET(port, SYNCHRONIZATION);
 368                 else if (!PARTNER_STATE(port, AGGREGATION) && ACTOR_STATE(port,
 369                                 AGGREGATION))
 370                         PARTNER_STATE_SET(port, SYNCHRONIZATION);
 371                 else
 372                         PARTNER_STATE_CLR(port, SYNCHRONIZATION);
 373
 374                 if (ACTOR_STATE(port, LACP_SHORT_TIMEOUT))
 375                         timeout = internals->mode4.short_timeout;
 376                 else
 377                         timeout = internals->mode4.long_timeout;
 378
 379                 timer_set(&port->current_while_timer, timeout);
 380                 ACTOR_STATE_CLR(port, EXPIRED);
 381                 return; /* No state change */
 382         }
 383
 384         /* If CURRENT state timer is not running (stopped or expired)
 385          * transit to EXPIRED state from DISABLED or CURRENT */
 386         if (!timer_is_running(&port->current_while_timer)) {
 387                 ACTOR_STATE_SET(port, EXPIRED);
 388                 PARTNER_STATE_CLR(port, SYNCHRONIZATION);
 389                 PARTNER_STATE_SET(port, LACP_SHORT_TIMEOUT);
 390                 timer_set(&port->current_while_timer, internals->mode4.short_timeout);
 391         }
 392 }
 393
 394 /**
 395  * Function handles periodic tx state machine.
 396  *
 397  * Function implements Periodic Transmission state machine from point 5.4.13
 398  * in 802.1AX documentation. It should be called periodically.
 399  *
 400  * @param port                  Port to handle state machine.
 401  */
 402 static void
 403 periodic_machine(struct bond_dev_private *internals, uint8_t slave_id)
 404 {
 405         struct port *port = &mode_8023ad_ports[slave_id];
 406         /* Calculate if either site is LACP enabled */
 407         uint64_t timeout;
 408         uint8_t active = ACTOR_STATE(port, LACP_ACTIVE) ||
 409                 PARTNER_STATE(port, LACP_ACTIVE);
 410
 411         uint8_t is_partner_fast, was_partner_fast;
 412         /* No periodic is on BEGIN, LACP DISABLE or when both sides are pasive */
 413         if (SM_FLAG(port, BEGIN) || !SM_FLAG(port, LACP_ENABLED) || !active) {
 414                 timer_cancel(&port->periodic_timer);
 415                 timer_force_expired(&port->tx_machine_timer);
 416                 SM_FLAG_CLR(port, PARTNER_SHORT_TIMEOUT);
 417
 418                 MODE4_DEBUG("-> NO_PERIODIC ( %s%s%s)\n",
 419                         SM_FLAG(port, BEGIN) ? "begind " : "",
 420                         SM_FLAG(port, LACP_ENABLED) ? "" : "LACP disabled ",
 421                         active ? "LACP active " : "LACP pasive ");
 422                 return;
 423         }
 424
 425         is_partner_fast = PARTNER_STATE(port, LACP_SHORT_TIMEOUT);
 426         was_partner_fast = SM_FLAG(port, PARTNER_SHORT_TIMEOUT);
 427
 428         /* If periodic timer is not started, transit from NO PERIODIC to FAST/SLOW.
 429          * Other case: check if timer expire or partners settings changed. */
 430         if (!timer_is_stopped(&port->periodic_timer)) {
 431                 if (timer_is_expired(&port->periodic_timer)) {
 432                         SM_FLAG_SET(port, NTT);
 433                 } else if (is_partner_fast != was_partner_fast) {
 434                         /* Partners timeout  was slow and now it is fast -> send LACP.
 435                          * In other case (was fast and now it is slow) just switch
 436                          * timeout to slow without forcing send of LACP (because standard
 437                          * say so)*/
 438                         if (is_partner_fast)
 439                                 SM_FLAG_SET(port, NTT);
 440                 } else
 441                         return; /* Nothing changed */
 442         }
 443
 444         /* Handle state transition to FAST/SLOW LACP timeout */
 445         if (is_partner_fast) {
 446                 timeout = internals->mode4.fast_periodic_timeout;
 447                 SM_FLAG_SET(port, PARTNER_SHORT_TIMEOUT);
 448         } else {
 449                 timeout = internals->mode4.slow_periodic_timeout;
 450                 SM_FLAG_CLR(port, PARTNER_SHORT_TIMEOUT);
 451         }
 452
 453         timer_set(&port->periodic_timer, timeout);
 454 }
 455
 456 /**
 457  * Function handles mux state machine.
 458  *
 459  * Function implements Mux Machine from point 5.4.15 in 802.1AX documentation.
 460  * It should be called periodically.
 461  *
 462  * @param port                  Port to handle state machine.
 463  */
 464 static void
 465 mux_machine(struct bond_dev_private *internals, uint8_t slave_id)
 466 {
 467         struct port *port = &mode_8023ad_ports[slave_id];
 468
 469         /* Save current state for later use */
 470         const uint8_t state_mask = STATE_SYNCHRONIZATION | STATE_DISTRIBUTING |
 471                 STATE_COLLECTING;
 472
 473         /* Enter DETACHED state on BEGIN condition or from any other state if
 474          * port was unselected */
 475         if (SM_FLAG(port, BEGIN) ||
 476                         port->selected == UNSELECTED || (port->selected == STANDBY &&
 477                                 (port->actor_state & state_mask) != 0)) {
 478                 /* detach mux from aggregator */
 479                 port->actor_state &= ~state_mask;
 480                 /* Set ntt to true if BEGIN condition or transition from any other state
 481                  * which is indicated that wait_while_timer was started */
 482                 if (SM_FLAG(port, BEGIN) ||
 483                                 !timer_is_stopped(&port->wait_while_timer)) {
 484                         SM_FLAG_SET(port, NTT);
 485                         MODE4_DEBUG("-> DETACHED\n");
 486                 }
 487                 timer_cancel(&port->wait_while_timer);
 488         }
 489
 490         if (timer_is_stopped(&port->wait_while_timer)) {
 491                 if (port->selected == SELECTED || port->selected == STANDBY) {
 492                         timer_set(&port->wait_while_timer,
 493                                 internals->mode4.aggregate_wait_timeout);
 494
 495                         MODE4_DEBUG("DETACHED -> WAITING\n");
 496                 }
 497                 /* Waiting state entered */
 498                 return;
 499         }
 500
 501         /* Transit next state if port is ready */
 502         if (!timer_is_expired(&port->wait_while_timer))
 503                 return;
 504
 505         if ((ACTOR_STATE(port, DISTRIBUTING) || ACTOR_STATE(port, COLLECTING)) &&
 506                 !PARTNER_STATE(port, SYNCHRONIZATION)) {
 507                 /* If in COLLECTING or DISTRIBUTING state and partner becomes out of
 508                  * sync transit to ATACHED state.  */
 509                 ACTOR_STATE_CLR(port, DISTRIBUTING);
 510                 ACTOR_STATE_CLR(port, COLLECTING);
 511                 /* Clear actor sync to activate transit ATACHED in condition bellow */
 512                 ACTOR_STATE_CLR(port, SYNCHRONIZATION);
 513                 MODE4_DEBUG("Out of sync -> ATTACHED\n");
 514         }
 515
 516         if (!ACTOR_STATE(port, SYNCHRONIZATION)) {
 517                 /* attach mux to aggregator */
 518                 RTE_ASSERT((port->actor_state & (STATE_COLLECTING |
 519                         STATE_DISTRIBUTING)) == 0);
 520
 521                 ACTOR_STATE_SET(port, SYNCHRONIZATION);
 522                 SM_FLAG_SET(port, NTT);
 523                 MODE4_DEBUG("ATTACHED Entered\n");
 524         } else if (!ACTOR_STATE(port, COLLECTING)) {
 525                 /* Start collecting if in sync */
 526                 if (PARTNER_STATE(port, SYNCHRONIZATION)) {
 527                         MODE4_DEBUG("ATTACHED -> COLLECTING\n");
 528                         ACTOR_STATE_SET(port, COLLECTING);
 529                         SM_FLAG_SET(port, NTT);
 530                 }
 531         } else if (ACTOR_STATE(port, COLLECTING)) {
 532                 /* Check if partner is in COLLECTING state. If so this port can
 533                  * distribute frames to it */
 534                 if (!ACTOR_STATE(port, DISTRIBUTING)) {
 535                         if (PARTNER_STATE(port, COLLECTING)) {
 536                                 /* Enable  DISTRIBUTING if partner is collecting */
 537                                 ACTOR_STATE_SET(port, DISTRIBUTING);
 538                                 SM_FLAG_SET(port, NTT);
 539                                 MODE4_DEBUG("COLLECTING -> DISTRIBUTING\n");
 540                                 RTE_LOG(INFO, PMD,
 541                                         "Bond %u: slave id %u distributing started.\n",
 542                                         internals->port_id, slave_id);
 543                         }
 544                 } else {
 545                         if (!PARTNER_STATE(port, COLLECTING)) {
 546                                 /* Disable DISTRIBUTING (enter COLLECTING state) if partner
 547                                  * is not collecting */
 548                                 ACTOR_STATE_CLR(port, DISTRIBUTING);
 549                                 SM_FLAG_SET(port, NTT);
 550                                 MODE4_DEBUG("DISTRIBUTING -> COLLECTING\n");
 551                                 RTE_LOG(INFO, PMD,
 552                                         "Bond %u: slave id %u distributing stopped.\n",
 553                                         internals->port_id, slave_id);
 554                         }
 555                 }
 556         }
 557 }
 558
 559 /**
 560  * Function handles transmit state machine.
 561  *
 562  * Function implements Transmit Machine from point 5.4.16 in 802.1AX
 563  * documentation.
 564  *
 565  * @param port
 566  */
 567 static void
 568 tx_machine(struct bond_dev_private *internals, uint8_t slave_id)
 569 {
 570         struct port *agg, *port = &mode_8023ad_ports[slave_id];
 571
 572         struct rte_mbuf *lacp_pkt = NULL;
 573         struct lacpdu_header *hdr;
 574         struct lacpdu *lacpdu;
 575
 576         /* If periodic timer is not running periodic machine is in NO PERIODIC and
 577          * according to 802.3ax standard tx machine should not transmit any frames
 578          * and set ntt to false. */
 579         if (timer_is_stopped(&port->periodic_timer))
 580                 SM_FLAG_CLR(port, NTT);
 581
 582         if (!SM_FLAG(port, NTT))
 583                 return;
 584
 585         if (!timer_is_expired(&port->tx_machine_timer))
 586                 return;
 587
 588         lacp_pkt = rte_pktmbuf_alloc(port->mbuf_pool);
 589         if (lacp_pkt == NULL) {
 590                 RTE_LOG(ERR, PMD, "Failed to allocate LACP packet from pool\n");
 591                 return;
 592         }
 593
 594         lacp_pkt->data_len = sizeof(*hdr);
 595         lacp_pkt->pkt_len = sizeof(*hdr);
 596
 597         hdr = rte_pktmbuf_mtod(lacp_pkt, struct lacpdu_header *);
 598
 599         /* Source and destination MAC */
 600         ether_addr_copy(&lacp_mac_addr, &hdr->eth_hdr.d_addr);
 601         rte_eth_macaddr_get(slave_id, &hdr->eth_hdr.s_addr);
 602         hdr->eth_hdr.ether_type = rte_cpu_to_be_16(ETHER_TYPE_SLOW);
 603
 604         lacpdu = &hdr->lacpdu;
 605         memset(lacpdu, 0, sizeof(*lacpdu));
 606
 607         /* Initialize LACP part */
 608         lacpdu->subtype = SLOW_SUBTYPE_LACP;
 609         lacpdu->version_number = 1;
 610
 611         /* ACTOR */
 612         lacpdu->actor.tlv_type_info = TLV_TYPE_ACTOR_INFORMATION;
 613         lacpdu->actor.info_length = sizeof(struct lacpdu_actor_partner_params);
 614         memcpy(&hdr->lacpdu.actor.port_params, &port->actor,
 615                         sizeof(port->actor));
 616         agg = &mode_8023ad_ports[port->aggregator_port_id];
 617         ether_addr_copy(&agg->actor.system, &hdr->lacpdu.actor.port_params.system);
 618         lacpdu->actor.state = port->actor_state;
 619
 620         /* PARTNER */
 621         lacpdu->partner.tlv_type_info = TLV_TYPE_PARTNER_INFORMATION;
 622         lacpdu->partner.info_length = sizeof(struct lacpdu_actor_partner_params);
 623         memcpy(&lacpdu->partner.port_params, &port->partner,
 624                         sizeof(struct port_params));
 625         lacpdu->partner.state = port->partner_state;
 626
 627         /* Other fields */
 628         lacpdu->tlv_type_collector_info = TLV_TYPE_COLLECTOR_INFORMATION;
 629         lacpdu->collector_info_length = 0x10;
 630         lacpdu->collector_max_delay = 0;
 631
 632         lacpdu->tlv_type_terminator = TLV_TYPE_TERMINATOR_INFORMATION;
 633         lacpdu->terminator_length = 0;
 634
 635         if (rte_ring_enqueue(port->tx_ring, lacp_pkt) == -ENOBUFS) {
 636                 /* If TX ring full, drop packet and free message. Retransmission
 637                  * will happen in next function call. */
 638                 rte_pktmbuf_free(lacp_pkt);
 639                 set_warning_flags(port, WRN_TX_QUEUE_FULL);
 640                 return;
 641         }
 642
 643         MODE4_DEBUG("sending LACP frame\n");
 644         BOND_PRINT_LACP(lacpdu);
 645
 646         timer_set(&port->tx_machine_timer, internals->mode4.tx_period_timeout);
 647         SM_FLAG_CLR(port, NTT);
 648 }
 649
 650 /**
 651  * Function assigns port to aggregator.
 652  *
 653  * @param bond_dev_private      Pointer to bond_dev_private structure.
 654  * @param port_pos                      Port to assign.
 655  */
 656 static void
 657 selection_logic(struct bond_dev_private *internals, uint8_t slave_id)
 658 {
 659         struct port *agg, *port;
 660         uint8_t slaves_count, new_agg_id, i;
 661         uint8_t *slaves;
 662
 663         slaves = internals->active_slaves;
 664         slaves_count = internals->active_slave_count;
 665         port = &mode_8023ad_ports[slave_id];
 666
 667         /* Search for aggregator suitable for this port */
 668         for (i = 0; i < slaves_count; ++i) {
 669                 agg = &mode_8023ad_ports[slaves[i]];
 670                 /* Skip ports that are not aggreagators */
 671                 if (agg->aggregator_port_id != slaves[i])
 672                         continue;
 673
 674                 /* Actors system ID is not checked since all slave device have the same
 675                  * ID (MAC address). */
 676                 if ((agg->actor.key == port->actor.key &&
 677                         agg->partner.system_priority == port->partner.system_priority &&
 678                         is_same_ether_addr(&agg->partner.system, &port->partner.system) == 1
 679                         && (agg->partner.key == port->partner.key)) &&
 680                         is_zero_ether_addr(&port->partner.system) != 1 &&
 681                         (agg->actor.key &
 682                                 rte_cpu_to_be_16(BOND_LINK_FULL_DUPLEX_KEY)) != 0) {
 683
 684                         break;
 685                 }
 686         }
 687
 688         /* By default, port uses it self as agregator */
 689         if (i == slaves_count)
 690                 new_agg_id = slave_id;
 691         else
 692                 new_agg_id = slaves[i];
 693
 694         if (new_agg_id != port->aggregator_port_id) {
 695                 port->aggregator_port_id = new_agg_id;
 696
 697                 MODE4_DEBUG("-> SELECTED: ID=%3u\n"
 698                         "\t%s aggregator ID=%3u\n",
 699                         port->aggregator_port_id,
 700                         port->aggregator_port_id == slave_id ?
 701                                 "aggregator not found, using default" : "aggregator found",
 702                         port->aggregator_port_id);
 703         }
 704
 705         port->selected = SELECTED;
 706 }
 707
 708 /* Function maps DPDK speed to bonding speed stored in key field */
 709 static uint16_t
 710 link_speed_key(uint16_t speed) {
 711         uint16_t key_speed;
 712
 713         switch (speed) {
 714         case ETH_SPEED_NUM_NONE:
 715                 key_speed = 0x00;
 716                 break;
 717         case ETH_SPEED_NUM_10M:
 718                 key_speed = BOND_LINK_SPEED_KEY_10M;
 719                 break;
 720         case ETH_SPEED_NUM_100M:
 721                 key_speed = BOND_LINK_SPEED_KEY_100M;
 722                 break;
 723         case ETH_SPEED_NUM_1G:
 724                 key_speed = BOND_LINK_SPEED_KEY_1000M;
 725                 break;
 726         case ETH_SPEED_NUM_10G:
 727                 key_speed = BOND_LINK_SPEED_KEY_10G;
 728                 break;
 729         case ETH_SPEED_NUM_20G:
 730                 key_speed = BOND_LINK_SPEED_KEY_20G;
 731                 break;
 732         case ETH_SPEED_NUM_40G:
 733                 key_speed = BOND_LINK_SPEED_KEY_40G;
 734                 break;
 735         default:
 736                 /* Unknown speed*/
 737                 key_speed = 0xFFFF;
 738         }
 739
 740         return key_speed;
 741 }
 742
 743 static void
 744 bond_mode_8023ad_periodic_cb(void *arg)
 745 {
 746         struct rte_eth_dev *bond_dev = arg;
 747         struct bond_dev_private *internals = bond_dev->data->dev_private;
 748         struct port *port;
 749         struct rte_eth_link link_info;
 750         struct ether_addr slave_addr;
 751
 752         void *pkt = NULL;
 753         uint8_t i, slave_id;
 754
 755
 756         /* Update link status on each port */
 757         for (i = 0; i < internals->active_slave_count; i++) {
 758                 uint16_t key;
 759
 760                 slave_id = internals->active_slaves[i];
 761                 rte_eth_link_get_nowait(slave_id, &link_info);
 762                 rte_eth_macaddr_get(slave_id, &slave_addr);
 763
 764                 if (link_info.link_status != 0) {
 765                         key = link_speed_key(link_info.link_speed) << 1;
 766                         if (link_info.link_duplex == ETH_LINK_FULL_DUPLEX)
 767                                 key |= BOND_LINK_FULL_DUPLEX_KEY;
 768                 } else
 769                         key = 0;
 770
 771                 port = &mode_8023ad_ports[slave_id];
 772
 773                 key = rte_cpu_to_be_16(key);
 774                 if (key != port->actor.key) {
 775                         if (!(key & rte_cpu_to_be_16(BOND_LINK_FULL_DUPLEX_KEY)))
 776                                 set_warning_flags(port, WRN_NOT_LACP_CAPABLE);
 777
 778                         port->actor.key = key;
 779                         SM_FLAG_SET(port, NTT);
 780                 }
 781
 782                 if (!is_same_ether_addr(&port->actor.system, &slave_addr)) {
 783                         ether_addr_copy(&slave_addr, &port->actor.system);
 784                         if (port->aggregator_port_id == slave_id)
 785                                 SM_FLAG_SET(port, NTT);
 786                 }
 787         }
 788
 789         for (i = 0; i < internals->active_slave_count; i++) {
 790                 slave_id = internals->active_slaves[i];
 791                 port = &mode_8023ad_ports[slave_id];
 792
 793                 if ((port->actor.key &
 794                                 rte_cpu_to_be_16(BOND_LINK_FULL_DUPLEX_KEY)) == 0) {
 795
 796                         SM_FLAG_SET(port, BEGIN);
 797
 798                         /* LACP is disabled on half duples or link is down */
 799                         if (SM_FLAG(port, LACP_ENABLED)) {
 800                                 /* If port was enabled set it to BEGIN state */
 801                                 SM_FLAG_CLR(port, LACP_ENABLED);
 802                                 ACTOR_STATE_CLR(port, DISTRIBUTING);
 803                                 ACTOR_STATE_CLR(port, COLLECTING);
 804                         }
 805
 806                         /* Skip this port processing */
 807                         continue;
 808                 }
 809
 810                 SM_FLAG_SET(port, LACP_ENABLED);
 811
 812                 /* Find LACP packet to this port. Do not check subtype, it is done in
 813                  * function that queued packet */
 814                 if (rte_ring_dequeue(port->rx_ring, &pkt) == 0) {
 815                         struct rte_mbuf *lacp_pkt = pkt;
 816                         struct lacpdu_header *lacp;
 817
 818                         lacp = rte_pktmbuf_mtod(lacp_pkt, struct lacpdu_header *);
 819                         RTE_ASSERT(lacp->lacpdu.subtype == SLOW_SUBTYPE_LACP);
 820
 821                         /* This is LACP frame so pass it to rx_machine */
 822                         rx_machine(internals, slave_id, &lacp->lacpdu);
 823                         rte_pktmbuf_free(lacp_pkt);
 824                 } else
 825                         rx_machine(internals, slave_id, NULL);
 826
 827                 periodic_machine(internals, slave_id);
 828                 mux_machine(internals, slave_id);
 829                 tx_machine(internals, slave_id);
 830                 selection_logic(internals, slave_id);
 831
 832                 SM_FLAG_CLR(port, BEGIN);
 833                 show_warnings(slave_id);
 834         }
 835
 836         rte_eal_alarm_set(internals->mode4.update_timeout_us,
 837                         bond_mode_8023ad_periodic_cb, arg);
 838 }
 839
 840 void
 841 bond_mode_8023ad_activate_slave(struct rte_eth_dev *bond_dev, uint8_t slave_id)
 842 {
 843         struct bond_dev_private *internals = bond_dev->data->dev_private;
 844
 845         struct port *port = &mode_8023ad_ports[slave_id];
 846         struct port_params initial = {
 847                         .system = { { 0 } },
 848                         .system_priority = rte_cpu_to_be_16(0xFFFF),
 849                         .key = rte_cpu_to_be_16(BOND_LINK_FULL_DUPLEX_KEY),
 850                         .port_priority = rte_cpu_to_be_16(0x00FF),
 851                         .port_number = 0,
 852         };
 853
 854         char mem_name[RTE_ETH_NAME_MAX_LEN];
 855         int socket_id;
 856         unsigned element_size;
 857         uint32_t total_tx_desc;
 858         struct bond_tx_queue *bd_tx_q;
 859         uint16_t q_id;
 860
 861         /* Given slave mus not be in active list */
 862         RTE_ASSERT(find_slave_by_id(internals->active_slaves,
 863         internals->active_slave_count, slave_id) == internals->active_slave_count);
 864         RTE_SET_USED(internals); /* used only for assert when enabled */
 865
 866         memcpy(&port->actor, &initial, sizeof(struct port_params));
 867         /* Standard requires that port ID must be grater than 0.
 868          * Add 1 do get corresponding port_number */
 869         port->actor.port_number = rte_cpu_to_be_16((uint16_t)slave_id + 1);
 870
 871         memcpy(&port->partner, &initial, sizeof(struct port_params));
 872
 873         /* default states */
 874         port->actor_state = STATE_AGGREGATION | STATE_LACP_ACTIVE | STATE_DEFAULTED;
 875         port->partner_state = STATE_LACP_ACTIVE;
 876         port->sm_flags = SM_FLAGS_BEGIN;
 877
 878         /* use this port as agregator */
 879         port->aggregator_port_id = slave_id;
 880         rte_eth_promiscuous_enable(slave_id);
 881
 882         timer_cancel(&port->warning_timer);
 883
 884         if (port->mbuf_pool != NULL)
 885                 return;
 886
 887         RTE_ASSERT(port->rx_ring == NULL);
 888         RTE_ASSERT(port->tx_ring == NULL);
 889         socket_id = rte_eth_devices[slave_id].data->numa_node;
 890
 891         element_size = sizeof(struct slow_protocol_frame) + sizeof(struct rte_mbuf)
 892                                 + RTE_PKTMBUF_HEADROOM;
 893
 894         /* The size of the mempool should be at least:
 895          * the sum of the TX descriptors + BOND_MODE_8023AX_SLAVE_TX_PKTS */
 896         total_tx_desc = BOND_MODE_8023AX_SLAVE_TX_PKTS;
 897         for (q_id = 0; q_id < bond_dev->data->nb_tx_queues; q_id++) {
 898                 bd_tx_q = (struct bond_tx_queue*)bond_dev->data->tx_queues[q_id];
 899                 total_tx_desc += bd_tx_q->nb_tx_desc;
 900         }
 901
 902         snprintf(mem_name, RTE_DIM(mem_name), "slave_port%u_pool", slave_id);
 903         port->mbuf_pool = rte_mempool_create(mem_name,
 904                 total_tx_desc, element_size,
 905                 RTE_MEMPOOL_CACHE_MAX_SIZE >= 32 ? 32 : RTE_MEMPOOL_CACHE_MAX_SIZE,
 906                 sizeof(struct rte_pktmbuf_pool_private), rte_pktmbuf_pool_init,
 907                 NULL, rte_pktmbuf_init, NULL, socket_id, MEMPOOL_F_NO_SPREAD);
 908
 909         /* Any memory allocation failure in initalization is critical because
 910          * resources can't be free, so reinitialization is impossible. */
 911         if (port->mbuf_pool == NULL) {
 912                 rte_panic("Slave %u: Failed to create memory pool '%s': %s\n",
 913                         slave_id, mem_name, rte_strerror(rte_errno));
 914         }
 915
 916         snprintf(mem_name, RTE_DIM(mem_name), "slave_%u_rx", slave_id);
 917         port->rx_ring = rte_ring_create(mem_name,
 918                         rte_align32pow2(BOND_MODE_8023AX_SLAVE_RX_PKTS), socket_id, 0);
 919
 920         if (port->rx_ring == NULL) {
 921                 rte_panic("Slave %u: Failed to create rx ring '%s': %s\n", slave_id,
 922                         mem_name, rte_strerror(rte_errno));
 923         }
 924
 925         /* TX ring is at least one pkt longer to make room for marker packet. */
 926         snprintf(mem_name, RTE_DIM(mem_name), "slave_%u_tx", slave_id);
 927         port->tx_ring = rte_ring_create(mem_name,
 928                         rte_align32pow2(BOND_MODE_8023AX_SLAVE_TX_PKTS + 1), socket_id, 0);
 929
 930         if (port->tx_ring == NULL) {
 931                 rte_panic("Slave %u: Failed to create tx ring '%s': %s\n", slave_id,
 932                         mem_name, rte_strerror(rte_errno));
 933         }
 934 }
 935
 936 int
 937 bond_mode_8023ad_deactivate_slave(struct rte_eth_dev *bond_dev __rte_unused,
 938                 uint8_t slave_id)
 939 {
 940         void *pkt = NULL;
 941         struct port *port = NULL;
 942         uint8_t old_partner_state;
 943
 944         port = &mode_8023ad_ports[slave_id];
 945
 946         ACTOR_STATE_CLR(port, AGGREGATION);
 947         port->selected = UNSELECTED;
 948
 949         old_partner_state = port->partner_state;
 950         record_default(port);
 951
 952         /* If partner timeout state changes then disable timer */
 953         if (!((old_partner_state ^ port->partner_state) &
 954                         STATE_LACP_SHORT_TIMEOUT))
 955                 timer_cancel(&port->current_while_timer);
 956
 957         PARTNER_STATE_CLR(port, AGGREGATION);
 958         ACTOR_STATE_CLR(port, EXPIRED);
 959
 960         /* flush rx/tx rings */
 961         while (rte_ring_dequeue(port->rx_ring, &pkt) == 0)
 962                 rte_pktmbuf_free((struct rte_mbuf *)pkt);
 963
 964         while (rte_ring_dequeue(port->tx_ring, &pkt) == 0)
 965                         rte_pktmbuf_free((struct rte_mbuf *)pkt);
 966         return 0;
 967 }
 968
 969 void
 970 bond_mode_8023ad_mac_address_update(struct rte_eth_dev *bond_dev)
 971 {
 972         struct bond_dev_private *internals = bond_dev->data->dev_private;
 973         struct ether_addr slave_addr;
 974         struct port *slave, *agg_slave;
 975         uint8_t slave_id, i, j;
 976
 977         bond_mode_8023ad_stop(bond_dev);
 978
 979         for (i = 0; i < internals->active_slave_count; i++) {
 980                 slave_id = internals->active_slaves[i];
 981                 slave = &mode_8023ad_ports[slave_id];
 982                 rte_eth_macaddr_get(slave_id, &slave_addr);
 983
 984                 if (is_same_ether_addr(&slave_addr, &slave->actor.system))
 985                         continue;
 986
 987                 ether_addr_copy(&slave_addr, &slave->actor.system);
 988                 /* Do nothing if this port is not an aggregator. In other case
 989                  * Set NTT flag on every port that use this aggregator. */
 990                 if (slave->aggregator_port_id != slave_id)
 991                         continue;
 992
 993                 for (j = 0; j < internals->active_slave_count; j++) {
 994                         agg_slave = &mode_8023ad_ports[internals->active_slaves[j]];
 995                         if (agg_slave->aggregator_port_id == slave_id)
 996                                 SM_FLAG_SET(agg_slave, NTT);
 997                 }
 998         }
 999
1000         if (bond_dev->data->dev_started)
1001                 bond_mode_8023ad_start(bond_dev);
1002 }
1003
1004 static void
1005 bond_mode_8023ad_conf_get(struct rte_eth_dev *dev,
1006                 struct rte_eth_bond_8023ad_conf *conf)
1007 {
1008         struct bond_dev_private *internals = dev->data->dev_private;
1009         struct mode8023ad_private *mode4 = &internals->mode4;
1010         uint64_t ms_ticks = rte_get_tsc_hz() / 1000;
1011
1012         conf->fast_periodic_ms = mode4->fast_periodic_timeout / ms_ticks;
1013         conf->slow_periodic_ms = mode4->slow_periodic_timeout / ms_ticks;
1014         conf->short_timeout_ms = mode4->short_timeout / ms_ticks;
1015         conf->long_timeout_ms = mode4->long_timeout / ms_ticks;
1016         conf->aggregate_wait_timeout_ms = mode4->aggregate_wait_timeout / ms_ticks;
1017         conf->tx_period_ms = mode4->tx_period_timeout / ms_ticks;
1018         conf->update_timeout_ms = mode4->update_timeout_us / 1000;
1019         conf->rx_marker_period_ms = mode4->rx_marker_timeout / ms_ticks;
1020 }
1021
1022 static void
1023 bond_mode_8023ad_conf_get_v1607(struct rte_eth_dev *dev,
1024                 struct rte_eth_bond_8023ad_conf *conf)
1025 {
1026         struct bond_dev_private *internals = dev->data->dev_private;
1027         struct mode8023ad_private *mode4 = &internals->mode4;
1028
1029         bond_mode_8023ad_conf_get(dev, conf);
1030         conf->slowrx_cb = mode4->slowrx_cb;
1031 }
1032
1033 static void
1034 bond_mode_8023ad_conf_get_default(struct rte_eth_bond_8023ad_conf *conf)
1035 {
1036         conf->fast_periodic_ms = BOND_8023AD_FAST_PERIODIC_MS;
1037         conf->slow_periodic_ms = BOND_8023AD_SLOW_PERIODIC_MS;
1038         conf->short_timeout_ms = BOND_8023AD_SHORT_TIMEOUT_MS;
1039         conf->long_timeout_ms = BOND_8023AD_LONG_TIMEOUT_MS;
1040         conf->aggregate_wait_timeout_ms = BOND_8023AD_AGGREGATE_WAIT_TIMEOUT_MS;
1041         conf->tx_period_ms = BOND_8023AD_TX_MACHINE_PERIOD_MS;
1042         conf->rx_marker_period_ms = BOND_8023AD_RX_MARKER_PERIOD_MS;
1043         conf->update_timeout_ms = BOND_MODE_8023AX_UPDATE_TIMEOUT_MS;
1044         conf->slowrx_cb = NULL;
1045 }
1046
1047 static void
1048 bond_mode_8023ad_conf_assign(struct mode8023ad_private *mode4,
1049                 struct rte_eth_bond_8023ad_conf *conf)
1050 {
1051         uint64_t ms_ticks = rte_get_tsc_hz() / 1000;
1052
1053         mode4->fast_periodic_timeout = conf->fast_periodic_ms * ms_ticks;
1054         mode4->slow_periodic_timeout = conf->slow_periodic_ms * ms_ticks;
1055         mode4->short_timeout = conf->short_timeout_ms * ms_ticks;
1056         mode4->long_timeout = conf->long_timeout_ms * ms_ticks;
1057         mode4->aggregate_wait_timeout = conf->aggregate_wait_timeout_ms * ms_ticks;
1058         mode4->tx_period_timeout = conf->tx_period_ms * ms_ticks;
1059         mode4->rx_marker_timeout = conf->rx_marker_period_ms * ms_ticks;
1060         mode4->update_timeout_us = conf->update_timeout_ms * 1000;
1061 }
1062
1063 static void
1064 bond_mode_8023ad_setup_v20(struct rte_eth_dev *dev,
1065                 struct rte_eth_bond_8023ad_conf *conf)
1066 {
1067         struct rte_eth_bond_8023ad_conf def_conf;
1068         struct bond_dev_private *internals = dev->data->dev_private;
1069         struct mode8023ad_private *mode4 = &internals->mode4;
1070
1071         if (conf == NULL) {
1072                 conf = &def_conf;
1073                 bond_mode_8023ad_conf_get_default(conf);
1074         }
1075
1076         bond_mode_8023ad_stop(dev);
1077         bond_mode_8023ad_conf_assign(mode4, conf);
1078
1079         if (dev->data->dev_started)
1080                 bond_mode_8023ad_start(dev);
1081 }
1082
1083
1084 void
1085 bond_mode_8023ad_setup(struct rte_eth_dev *dev,
1086                 struct rte_eth_bond_8023ad_conf *conf)
1087 {
1088         struct rte_eth_bond_8023ad_conf def_conf;
1089         struct bond_dev_private *internals = dev->data->dev_private;
1090         struct mode8023ad_private *mode4 = &internals->mode4;
1091
1092         if (conf == NULL) {
1093                 conf = &def_conf;
1094                 bond_mode_8023ad_conf_get_default(conf);
1095         }
1096
1097         bond_mode_8023ad_stop(dev);
1098         bond_mode_8023ad_conf_assign(mode4, conf);
1099         mode4->slowrx_cb = conf->slowrx_cb;
1100
1101         if (dev->data->dev_started)
1102                 bond_mode_8023ad_start(dev);
1103 }
1104
1105 int
1106 bond_mode_8023ad_enable(struct rte_eth_dev *bond_dev)
1107 {
1108         struct bond_dev_private *internals = bond_dev->data->dev_private;
1109         uint8_t i;
1110
1111         for (i = 0; i < internals->active_slave_count; i++)
1112                 bond_mode_8023ad_activate_slave(bond_dev, i);
1113
1114         return 0;
1115 }
1116
1117 int
1118 bond_mode_8023ad_start(struct rte_eth_dev *bond_dev)
1119 {
1120         struct bond_dev_private *internals = bond_dev->data->dev_private;
1121         struct mode8023ad_private *mode4 = &internals->mode4;
1122         static const uint64_t us = BOND_MODE_8023AX_UPDATE_TIMEOUT_MS * 1000;
1123
1124         if (mode4->slowrx_cb)
1125                 return rte_eal_alarm_set(us, &bond_mode_8023ad_ext_periodic_cb,
1126                                          bond_dev);
1127
1128         return rte_eal_alarm_set(us, &bond_mode_8023ad_periodic_cb, bond_dev);
1129 }
1130
1131 void
1132 bond_mode_8023ad_stop(struct rte_eth_dev *bond_dev)
1133 {
1134         struct bond_dev_private *internals = bond_dev->data->dev_private;
1135         struct mode8023ad_private *mode4 = &internals->mode4;
1136
1137         if (mode4->slowrx_cb) {
1138                 rte_eal_alarm_cancel(&bond_mode_8023ad_ext_periodic_cb,
1139                                      bond_dev);
1140                 return;
1141         }
1142         rte_eal_alarm_cancel(&bond_mode_8023ad_periodic_cb, bond_dev);
1143 }
1144
1145 void
1146 bond_mode_8023ad_handle_slow_pkt(struct bond_dev_private *internals,
1147         uint8_t slave_id, struct rte_mbuf *pkt)
1148 {
1149         struct mode8023ad_private *mode4 = &internals->mode4;
1150         struct port *port = &mode_8023ad_ports[slave_id];
1151         struct marker_header *m_hdr;
1152         uint64_t marker_timer, old_marker_timer;
1153         int retval;
1154         uint8_t wrn, subtype;
1155         /* If packet is a marker, we send response now by reusing given packet
1156          * and update only source MAC, destination MAC is multicast so don't
1157          * update it. Other frames will be handled later by state machines */
1158         subtype = rte_pktmbuf_mtod(pkt,
1159                         struct slow_protocol_frame *)->slow_protocol.subtype;
1160
1161         if (subtype == SLOW_SUBTYPE_MARKER) {
1162                 m_hdr = rte_pktmbuf_mtod(pkt, struct marker_header *);
1163
1164                 if (likely(m_hdr->marker.tlv_type_marker != MARKER_TLV_TYPE_INFO)) {
1165                         wrn = WRN_UNKNOWN_MARKER_TYPE;
1166                         goto free_out;
1167                 }
1168
1169                 /* Setup marker timer. Do it in loop in case concurrent access. */
1170                 do {
1171                         old_marker_timer = port->rx_marker_timer;
1172                         if (!timer_is_expired(&old_marker_timer)) {
1173                                 wrn = WRN_RX_MARKER_TO_FAST;
1174                                 goto free_out;
1175                         }
1176
1177                         timer_set(&marker_timer, mode4->rx_marker_timeout);
1178                         retval = rte_atomic64_cmpset(&port->rx_marker_timer,
1179                                 old_marker_timer, marker_timer);
1180                 } while (unlikely(retval == 0));
1181
1182                 m_hdr->marker.tlv_type_marker = MARKER_TLV_TYPE_RESP;
1183                 rte_eth_macaddr_get(slave_id, &m_hdr->eth_hdr.s_addr);
1184
1185                 if (unlikely(rte_ring_enqueue(port->tx_ring, pkt) == -ENOBUFS)) {
1186                         /* reset timer */
1187                         port->rx_marker_timer = 0;
1188                         wrn = WRN_TX_QUEUE_FULL;
1189                         goto free_out;
1190                 }
1191         } else if (likely(subtype == SLOW_SUBTYPE_LACP)) {
1192                 if (unlikely(rte_ring_enqueue(port->rx_ring, pkt) == -ENOBUFS)) {
1193                         /* If RX fing full free lacpdu message and drop packet */
1194                         wrn = WRN_RX_QUEUE_FULL;
1195                         goto free_out;
1196                 }
1197         } else {
1198                 wrn = WRN_UNKNOWN_SLOW_TYPE;
1199                 goto free_out;
1200         }
1201
1202         return;
1203
1204 free_out:
1205         set_warning_flags(port, wrn);
1206         rte_pktmbuf_free(pkt);
1207 }
1208
1209 int
1210 rte_eth_bond_8023ad_conf_get_v20(uint8_t port_id,
1211                 struct rte_eth_bond_8023ad_conf *conf)
1212 {
1213         struct rte_eth_dev *bond_dev;
1214
1215         if (valid_bonded_port_id(port_id) != 0)
1216                 return -EINVAL;
1217
1218         if (conf == NULL)
1219                 return -EINVAL;
1220
1221         bond_dev = &rte_eth_devices[port_id];
1222         bond_mode_8023ad_conf_get(bond_dev, conf);
1223         return 0;
1224 }
1225 VERSION_SYMBOL(rte_eth_bond_8023ad_conf_get, _v20, 2.0);
1226
1227 int
1228 rte_eth_bond_8023ad_conf_get_v1607(uint8_t port_id,
1229                 struct rte_eth_bond_8023ad_conf *conf)
1230 {
1231         struct rte_eth_dev *bond_dev;
1232
1233         if (valid_bonded_port_id(port_id) != 0)
1234                 return -EINVAL;
1235
1236         if (conf == NULL)
1237                 return -EINVAL;
1238
1239         bond_dev = &rte_eth_devices[port_id];
1240         bond_mode_8023ad_conf_get_v1607(bond_dev, conf);
1241         return 0;
1242 }
1243 BIND_DEFAULT_SYMBOL(rte_eth_bond_8023ad_conf_get, _v1607, 16.07);
1244 MAP_STATIC_SYMBOL(int rte_eth_bond_8023ad_conf_get(uint8_t port_id,
1245                 struct rte_eth_bond_8023ad_conf *conf),
1246                 rte_eth_bond_8023ad_conf_get_v1607);
1247
1248 static int
1249 bond_8023ad_setup_validate(uint8_t port_id,
1250                 struct rte_eth_bond_8023ad_conf *conf)
1251 {
1252         if (valid_bonded_port_id(port_id) != 0)
1253                 return -EINVAL;
1254
1255         if (conf != NULL) {
1256                 /* Basic sanity check */
1257                 if (conf->slow_periodic_ms == 0 ||
1258                                 conf->fast_periodic_ms >= conf->slow_periodic_ms ||
1259                                 conf->long_timeout_ms == 0 ||
1260                                 conf->short_timeout_ms >= conf->long_timeout_ms ||
1261                                 conf->aggregate_wait_timeout_ms == 0 ||
1262                                 conf->tx_period_ms == 0 ||
1263                                 conf->rx_marker_period_ms == 0 ||
1264                                 conf->update_timeout_ms == 0) {
1265                         RTE_LOG(ERR, PMD, "given mode 4 configuration is invalid\n");
1266                         return -EINVAL;
1267                 }
1268         }
1269
1270         return 0;
1271 }
1272
1273 int
1274 rte_eth_bond_8023ad_setup_v20(uint8_t port_id,
1275                 struct rte_eth_bond_8023ad_conf *conf)
1276 {
1277         struct rte_eth_dev *bond_dev;
1278         int err;
1279
1280         err = bond_8023ad_setup_validate(port_id, conf);
1281         if (err != 0)
1282                 return err;
1283
1284         bond_dev = &rte_eth_devices[port_id];
1285         bond_mode_8023ad_setup_v20(bond_dev, conf);
1286
1287         return 0;
1288 }
1289 VERSION_SYMBOL(rte_eth_bond_8023ad_setup, _v20, 2.0);
1290
1291 int
1292 rte_eth_bond_8023ad_setup_v1607(uint8_t port_id,
1293                 struct rte_eth_bond_8023ad_conf *conf)
1294 {
1295         struct rte_eth_dev *bond_dev;
1296         int err;
1297
1298         err = bond_8023ad_setup_validate(port_id, conf);
1299         if (err != 0)
1300                 return err;
1301
1302         bond_dev = &rte_eth_devices[port_id];
1303         bond_mode_8023ad_setup(bond_dev, conf);
1304
1305         return 0;
1306 }
1307 BIND_DEFAULT_SYMBOL(rte_eth_bond_8023ad_setup, _v1607, 16.07);
1308 MAP_STATIC_SYMBOL(int rte_eth_bond_8023ad_setup(uint8_t port_id,
1309                 struct rte_eth_bond_8023ad_conf *conf),
1310                 rte_eth_bond_8023ad_setup_v1607);
1311
1312 int
1313 rte_eth_bond_8023ad_slave_info(uint8_t port_id, uint8_t slave_id,
1314                 struct rte_eth_bond_8023ad_slave_info *info)
1315 {
1316         struct rte_eth_dev *bond_dev;
1317         struct bond_dev_private *internals;
1318         struct port *port;
1319
1320         if (info == NULL || valid_bonded_port_id(port_id) != 0 ||
1321                         rte_eth_bond_mode_get(port_id) != BONDING_MODE_8023AD)
1322                 return -EINVAL;
1323
1324         bond_dev = &rte_eth_devices[port_id];
1325
1326         internals = bond_dev->data->dev_private;
1327         if (find_slave_by_id(internals->active_slaves,
1328                         internals->active_slave_count, slave_id) ==
1329                                 internals->active_slave_count)
1330                 return -EINVAL;
1331
1332         port = &mode_8023ad_ports[slave_id];
1333         info->selected = port->selected;
1334
1335         info->actor_state = port->actor_state;
1336         rte_memcpy(&info->actor, &port->actor, sizeof(port->actor));
1337
1338         info->partner_state = port->partner_state;
1339         rte_memcpy(&info->partner, &port->partner, sizeof(port->partner));
1340
1341         info->agg_port_id = port->aggregator_port_id;
1342         return 0;
1343 }
1344
1345 static int
1346 bond_8023ad_ext_validate(uint8_t port_id, uint8_t slave_id)
1347 {
1348         struct rte_eth_dev *bond_dev;
1349         struct bond_dev_private *internals;
1350         struct mode8023ad_private *mode4;
1351
1352         if (rte_eth_bond_mode_get(port_id) != BONDING_MODE_8023AD)
1353                 return -EINVAL;
1354
1355         bond_dev = &rte_eth_devices[port_id];
1356
1357         if (!bond_dev->data->dev_started)
1358                 return -EINVAL;
1359
1360         internals = bond_dev->data->dev_private;
1361         if (find_slave_by_id(internals->active_slaves,
1362                         internals->active_slave_count, slave_id) ==
1363                                 internals->active_slave_count)
1364                 return -EINVAL;
1365
1366         mode4 = &internals->mode4;
1367         if (mode4->slowrx_cb == NULL)
1368                 return -EINVAL;
1369
1370         return 0;
1371 }
1372
1373 int
1374 rte_eth_bond_8023ad_ext_collect(uint8_t port_id, uint8_t slave_id, int enabled)
1375 {
1376         struct port *port;
1377         int res;
1378
1379         res = bond_8023ad_ext_validate(port_id, slave_id);
1380         if (res != 0)
1381                 return res;
1382
1383         port = &mode_8023ad_ports[slave_id];
1384
1385         if (enabled)
1386                 ACTOR_STATE_SET(port, COLLECTING);
1387         else
1388                 ACTOR_STATE_CLR(port, COLLECTING);
1389
1390         return 0;
1391 }
1392
1393 int
1394 rte_eth_bond_8023ad_ext_distrib(uint8_t port_id, uint8_t slave_id, int enabled)
1395 {
1396         struct port *port;
1397         int res;
1398
1399         res = bond_8023ad_ext_validate(port_id, slave_id);
1400         if (res != 0)
1401                 return res;
1402
1403         port = &mode_8023ad_ports[slave_id];
1404
1405         if (enabled)
1406                 ACTOR_STATE_SET(port, DISTRIBUTING);
1407         else
1408                 ACTOR_STATE_CLR(port, DISTRIBUTING);
1409
1410         return 0;
1411 }
1412
1413 int
1414 rte_eth_bond_8023ad_ext_distrib_get(uint8_t port_id, uint8_t slave_id)
1415 {
1416         struct port *port;
1417         int err;
1418
1419         err = bond_8023ad_ext_validate(port_id, slave_id);
1420         if (err != 0)
1421                 return err;
1422
1423         port = &mode_8023ad_ports[slave_id];
1424         return ACTOR_STATE(port, DISTRIBUTING);
1425 }
1426
1427 int
1428 rte_eth_bond_8023ad_ext_collect_get(uint8_t port_id, uint8_t slave_id)
1429 {
1430         struct port *port;
1431         int err;
1432
1433         err = bond_8023ad_ext_validate(port_id, slave_id);
1434         if (err != 0)
1435                 return err;
1436
1437         port = &mode_8023ad_ports[slave_id];
1438         return ACTOR_STATE(port, COLLECTING);
1439 }
1440
1441 int
1442 rte_eth_bond_8023ad_ext_slowtx(uint8_t port_id, uint8_t slave_id,
1443                 struct rte_mbuf *lacp_pkt)
1444 {
1445         struct port *port;
1446         int res;
1447
1448         res = bond_8023ad_ext_validate(port_id, slave_id);
1449         if (res != 0)
1450                 return res;
1451
1452         port = &mode_8023ad_ports[slave_id];
1453
1454         if (rte_pktmbuf_pkt_len(lacp_pkt) < sizeof(struct lacpdu_header))
1455                 return -EINVAL;
1456
1457         struct lacpdu_header *lacp;
1458
1459         /* only enqueue LACPDUs */
1460         lacp = rte_pktmbuf_mtod(lacp_pkt, struct lacpdu_header *);
1461         if (lacp->lacpdu.subtype != SLOW_SUBTYPE_LACP)
1462                 return -EINVAL;
1463
1464         MODE4_DEBUG("sending LACP frame\n");
1465
1466         return rte_ring_enqueue(port->tx_ring, lacp_pkt);
1467 }
1468
1469 static void
1470 bond_mode_8023ad_ext_periodic_cb(void *arg)
1471 {
1472         struct rte_eth_dev *bond_dev = arg;
1473         struct bond_dev_private *internals = bond_dev->data->dev_private;
1474         struct mode8023ad_private *mode4 = &internals->mode4;
1475         struct port *port;
1476         void *pkt = NULL;
1477         uint16_t i, slave_id;
1478
1479         for (i = 0; i < internals->active_slave_count; i++) {
1480                 slave_id = internals->active_slaves[i];
1481                 port = &mode_8023ad_ports[slave_id];
1482
1483                 if (rte_ring_dequeue(port->rx_ring, &pkt) == 0) {
1484                         struct rte_mbuf *lacp_pkt = pkt;
1485                         struct lacpdu_header *lacp;
1486
1487                         lacp = rte_pktmbuf_mtod(lacp_pkt,
1488                                                 struct lacpdu_header *);
1489                         RTE_VERIFY(lacp->lacpdu.subtype == SLOW_SUBTYPE_LACP);
1490
1491                         /* This is LACP frame so pass it to rx callback.
1492                          * Callback is responsible for freeing mbuf.
1493                          */
1494                         mode4->slowrx_cb(slave_id, lacp_pkt);
1495                 }
1496         }
1497
1498         rte_eal_alarm_set(internals->mode4.update_timeout_us,
1499                         bond_mode_8023ad_ext_periodic_cb, arg);
1500 }