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(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) +
 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_pktmbuf_pool_create(mem_name, total_tx_desc,
 904                 RTE_MEMPOOL_CACHE_MAX_SIZE >= 32 ?
 905                         32 : RTE_MEMPOOL_CACHE_MAX_SIZE,
 906                 0, element_size, socket_id);
 907
 908         /* Any memory allocation failure in initalization is critical because
 909          * resources can't be free, so reinitialization is impossible. */
 910         if (port->mbuf_pool == NULL) {
 911                 rte_panic("Slave %u: Failed to create memory pool '%s': %s\n",
 912                         slave_id, mem_name, rte_strerror(rte_errno));
 913         }
 914
 915         snprintf(mem_name, RTE_DIM(mem_name), "slave_%u_rx", slave_id);
 916         port->rx_ring = rte_ring_create(mem_name,
 917                         rte_align32pow2(BOND_MODE_8023AX_SLAVE_RX_PKTS), socket_id, 0);
 918
 919         if (port->rx_ring == NULL) {
 920                 rte_panic("Slave %u: Failed to create rx ring '%s': %s\n", slave_id,
 921                         mem_name, rte_strerror(rte_errno));
 922         }
 923
 924         /* TX ring is at least one pkt longer to make room for marker packet. */
 925         snprintf(mem_name, RTE_DIM(mem_name), "slave_%u_tx", slave_id);
 926         port->tx_ring = rte_ring_create(mem_name,
 927                         rte_align32pow2(BOND_MODE_8023AX_SLAVE_TX_PKTS + 1), socket_id, 0);
 928
 929         if (port->tx_ring == NULL) {
 930                 rte_panic("Slave %u: Failed to create tx ring '%s': %s\n", slave_id,
 931                         mem_name, rte_strerror(rte_errno));
 932         }
 933 }
 934
 935 int
 936 bond_mode_8023ad_deactivate_slave(struct rte_eth_dev *bond_dev,
 937                 uint8_t slave_id)
 938 {
 939         struct bond_dev_private *internals = bond_dev->data->dev_private;
 940         void *pkt = NULL;
 941         struct port *port;
 942         uint8_t i;
 943
 944         /* Given slave must be in active list */
 945         RTE_ASSERT(find_slave_by_id(internals->active_slaves,
 946         internals->active_slave_count, slave_id) < internals->active_slave_count);
 947
 948         /* Exclude slave from transmit policy. If this slave is an aggregator
 949          * make all aggregated slaves unselected to force selection logic
 950          * to select suitable aggregator for this port. */
 951         for (i = 0; i < internals->active_slave_count; i++) {
 952                 port = &mode_8023ad_ports[internals->active_slaves[i]];
 953                 if (port->aggregator_port_id != slave_id)
 954                         continue;
 955
 956                 port->selected = UNSELECTED;
 957
 958                 /* Use default aggregator */
 959                 port->aggregator_port_id = internals->active_slaves[i];
 960         }
 961
 962         port = &mode_8023ad_ports[slave_id];
 963         port->selected = UNSELECTED;
 964         port->actor_state &= ~(STATE_SYNCHRONIZATION | STATE_DISTRIBUTING |
 965                         STATE_COLLECTING);
 966
 967         while (rte_ring_dequeue(port->rx_ring, &pkt) == 0)
 968                 rte_pktmbuf_free((struct rte_mbuf *)pkt);
 969
 970         while (rte_ring_dequeue(port->tx_ring, &pkt) == 0)
 971                         rte_pktmbuf_free((struct rte_mbuf *)pkt);
 972         return 0;
 973 }
 974
 975 void
 976 bond_mode_8023ad_mac_address_update(struct rte_eth_dev *bond_dev)
 977 {
 978         struct bond_dev_private *internals = bond_dev->data->dev_private;
 979         struct ether_addr slave_addr;
 980         struct port *slave, *agg_slave;
 981         uint8_t slave_id, i, j;
 982
 983         bond_mode_8023ad_stop(bond_dev);
 984
 985         for (i = 0; i < internals->active_slave_count; i++) {
 986                 slave_id = internals->active_slaves[i];
 987                 slave = &mode_8023ad_ports[slave_id];
 988                 rte_eth_macaddr_get(slave_id, &slave_addr);
 989
 990                 if (is_same_ether_addr(&slave_addr, &slave->actor.system))
 991                         continue;
 992
 993                 ether_addr_copy(&slave_addr, &slave->actor.system);
 994                 /* Do nothing if this port is not an aggregator. In other case
 995                  * Set NTT flag on every port that use this aggregator. */
 996                 if (slave->aggregator_port_id != slave_id)
 997                         continue;
 998
 999                 for (j = 0; j < internals->active_slave_count; j++) {
1000                         agg_slave = &mode_8023ad_ports[internals->active_slaves[j]];
1001                         if (agg_slave->aggregator_port_id == slave_id)
1002                                 SM_FLAG_SET(agg_slave, NTT);
1003                 }
1004         }
1005
1006         if (bond_dev->data->dev_started)
1007                 bond_mode_8023ad_start(bond_dev);
1008 }
1009
1010 static void
1011 bond_mode_8023ad_conf_get(struct rte_eth_dev *dev,
1012                 struct rte_eth_bond_8023ad_conf *conf)
1013 {
1014         struct bond_dev_private *internals = dev->data->dev_private;
1015         struct mode8023ad_private *mode4 = &internals->mode4;
1016         uint64_t ms_ticks = rte_get_tsc_hz() / 1000;
1017
1018         conf->fast_periodic_ms = mode4->fast_periodic_timeout / ms_ticks;
1019         conf->slow_periodic_ms = mode4->slow_periodic_timeout / ms_ticks;
1020         conf->short_timeout_ms = mode4->short_timeout / ms_ticks;
1021         conf->long_timeout_ms = mode4->long_timeout / ms_ticks;
1022         conf->aggregate_wait_timeout_ms = mode4->aggregate_wait_timeout / ms_ticks;
1023         conf->tx_period_ms = mode4->tx_period_timeout / ms_ticks;
1024         conf->update_timeout_ms = mode4->update_timeout_us / 1000;
1025         conf->rx_marker_period_ms = mode4->rx_marker_timeout / ms_ticks;
1026 }
1027
1028 static void
1029 bond_mode_8023ad_conf_get_v1607(struct rte_eth_dev *dev,
1030                 struct rte_eth_bond_8023ad_conf *conf)
1031 {
1032         struct bond_dev_private *internals = dev->data->dev_private;
1033         struct mode8023ad_private *mode4 = &internals->mode4;
1034
1035         bond_mode_8023ad_conf_get(dev, conf);
1036         conf->slowrx_cb = mode4->slowrx_cb;
1037 }
1038
1039 static void
1040 bond_mode_8023ad_conf_get_default(struct rte_eth_bond_8023ad_conf *conf)
1041 {
1042         conf->fast_periodic_ms = BOND_8023AD_FAST_PERIODIC_MS;
1043         conf->slow_periodic_ms = BOND_8023AD_SLOW_PERIODIC_MS;
1044         conf->short_timeout_ms = BOND_8023AD_SHORT_TIMEOUT_MS;
1045         conf->long_timeout_ms = BOND_8023AD_LONG_TIMEOUT_MS;
1046         conf->aggregate_wait_timeout_ms = BOND_8023AD_AGGREGATE_WAIT_TIMEOUT_MS;
1047         conf->tx_period_ms = BOND_8023AD_TX_MACHINE_PERIOD_MS;
1048         conf->rx_marker_period_ms = BOND_8023AD_RX_MARKER_PERIOD_MS;
1049         conf->update_timeout_ms = BOND_MODE_8023AX_UPDATE_TIMEOUT_MS;
1050         conf->slowrx_cb = NULL;
1051 }
1052
1053 static void
1054 bond_mode_8023ad_conf_assign(struct mode8023ad_private *mode4,
1055                 struct rte_eth_bond_8023ad_conf *conf)
1056 {
1057         uint64_t ms_ticks = rte_get_tsc_hz() / 1000;
1058
1059         mode4->fast_periodic_timeout = conf->fast_periodic_ms * ms_ticks;
1060         mode4->slow_periodic_timeout = conf->slow_periodic_ms * ms_ticks;
1061         mode4->short_timeout = conf->short_timeout_ms * ms_ticks;
1062         mode4->long_timeout = conf->long_timeout_ms * ms_ticks;
1063         mode4->aggregate_wait_timeout = conf->aggregate_wait_timeout_ms * ms_ticks;
1064         mode4->tx_period_timeout = conf->tx_period_ms * ms_ticks;
1065         mode4->rx_marker_timeout = conf->rx_marker_period_ms * ms_ticks;
1066         mode4->update_timeout_us = conf->update_timeout_ms * 1000;
1067 }
1068
1069 static void
1070 bond_mode_8023ad_setup_v20(struct rte_eth_dev *dev,
1071                 struct rte_eth_bond_8023ad_conf *conf)
1072 {
1073         struct rte_eth_bond_8023ad_conf def_conf;
1074         struct bond_dev_private *internals = dev->data->dev_private;
1075         struct mode8023ad_private *mode4 = &internals->mode4;
1076
1077         if (conf == NULL) {
1078                 conf = &def_conf;
1079                 bond_mode_8023ad_conf_get_default(conf);
1080         }
1081
1082         bond_mode_8023ad_stop(dev);
1083         bond_mode_8023ad_conf_assign(mode4, conf);
1084
1085         if (dev->data->dev_started)
1086                 bond_mode_8023ad_start(dev);
1087 }
1088
1089
1090 void
1091 bond_mode_8023ad_setup(struct rte_eth_dev *dev,
1092                 struct rte_eth_bond_8023ad_conf *conf)
1093 {
1094         struct rte_eth_bond_8023ad_conf def_conf;
1095         struct bond_dev_private *internals = dev->data->dev_private;
1096         struct mode8023ad_private *mode4 = &internals->mode4;
1097
1098         if (conf == NULL) {
1099                 conf = &def_conf;
1100                 bond_mode_8023ad_conf_get_default(conf);
1101         }
1102
1103         bond_mode_8023ad_stop(dev);
1104         bond_mode_8023ad_conf_assign(mode4, conf);
1105         mode4->slowrx_cb = conf->slowrx_cb;
1106
1107         if (dev->data->dev_started)
1108                 bond_mode_8023ad_start(dev);
1109 }
1110
1111 int
1112 bond_mode_8023ad_enable(struct rte_eth_dev *bond_dev)
1113 {
1114         struct bond_dev_private *internals = bond_dev->data->dev_private;
1115         uint8_t i;
1116
1117         for (i = 0; i < internals->active_slave_count; i++)
1118                 bond_mode_8023ad_activate_slave(bond_dev, i);
1119
1120         return 0;
1121 }
1122
1123 int
1124 bond_mode_8023ad_start(struct rte_eth_dev *bond_dev)
1125 {
1126         struct bond_dev_private *internals = bond_dev->data->dev_private;
1127         struct mode8023ad_private *mode4 = &internals->mode4;
1128         static const uint64_t us = BOND_MODE_8023AX_UPDATE_TIMEOUT_MS * 1000;
1129
1130         if (mode4->slowrx_cb)
1131                 return rte_eal_alarm_set(us, &bond_mode_8023ad_ext_periodic_cb,
1132                                          bond_dev);
1133
1134         return rte_eal_alarm_set(us, &bond_mode_8023ad_periodic_cb, bond_dev);
1135 }
1136
1137 void
1138 bond_mode_8023ad_stop(struct rte_eth_dev *bond_dev)
1139 {
1140         struct bond_dev_private *internals = bond_dev->data->dev_private;
1141         struct mode8023ad_private *mode4 = &internals->mode4;
1142
1143         if (mode4->slowrx_cb) {
1144                 rte_eal_alarm_cancel(&bond_mode_8023ad_ext_periodic_cb,
1145                                      bond_dev);
1146                 return;
1147         }
1148         rte_eal_alarm_cancel(&bond_mode_8023ad_periodic_cb, bond_dev);
1149 }
1150
1151 void
1152 bond_mode_8023ad_handle_slow_pkt(struct bond_dev_private *internals,
1153         uint8_t slave_id, struct rte_mbuf *pkt)
1154 {
1155         struct mode8023ad_private *mode4 = &internals->mode4;
1156         struct port *port = &mode_8023ad_ports[slave_id];
1157         struct marker_header *m_hdr;
1158         uint64_t marker_timer, old_marker_timer;
1159         int retval;
1160         uint8_t wrn, subtype;
1161         /* If packet is a marker, we send response now by reusing given packet
1162          * and update only source MAC, destination MAC is multicast so don't
1163          * update it. Other frames will be handled later by state machines */
1164         subtype = rte_pktmbuf_mtod(pkt,
1165                         struct slow_protocol_frame *)->slow_protocol.subtype;
1166
1167         if (subtype == SLOW_SUBTYPE_MARKER) {
1168                 m_hdr = rte_pktmbuf_mtod(pkt, struct marker_header *);
1169
1170                 if (likely(m_hdr->marker.tlv_type_marker != MARKER_TLV_TYPE_INFO)) {
1171                         wrn = WRN_UNKNOWN_MARKER_TYPE;
1172                         goto free_out;
1173                 }
1174
1175                 /* Setup marker timer. Do it in loop in case concurrent access. */
1176                 do {
1177                         old_marker_timer = port->rx_marker_timer;
1178                         if (!timer_is_expired(&old_marker_timer)) {
1179                                 wrn = WRN_RX_MARKER_TO_FAST;
1180                                 goto free_out;
1181                         }
1182
1183                         timer_set(&marker_timer, mode4->rx_marker_timeout);
1184                         retval = rte_atomic64_cmpset(&port->rx_marker_timer,
1185                                 old_marker_timer, marker_timer);
1186                 } while (unlikely(retval == 0));
1187
1188                 m_hdr->marker.tlv_type_marker = MARKER_TLV_TYPE_RESP;
1189                 rte_eth_macaddr_get(slave_id, &m_hdr->eth_hdr.s_addr);
1190
1191                 if (unlikely(rte_ring_enqueue(port->tx_ring, pkt) == -ENOBUFS)) {
1192                         /* reset timer */
1193                         port->rx_marker_timer = 0;
1194                         wrn = WRN_TX_QUEUE_FULL;
1195                         goto free_out;
1196                 }
1197         } else if (likely(subtype == SLOW_SUBTYPE_LACP)) {
1198                 if (unlikely(rte_ring_enqueue(port->rx_ring, pkt) == -ENOBUFS)) {
1199                         /* If RX fing full free lacpdu message and drop packet */
1200                         wrn = WRN_RX_QUEUE_FULL;
1201                         goto free_out;
1202                 }
1203         } else {
1204                 wrn = WRN_UNKNOWN_SLOW_TYPE;
1205                 goto free_out;
1206         }
1207
1208         return;
1209
1210 free_out:
1211         set_warning_flags(port, wrn);
1212         rte_pktmbuf_free(pkt);
1213 }
1214
1215 int
1216 rte_eth_bond_8023ad_conf_get_v20(uint8_t port_id,
1217                 struct rte_eth_bond_8023ad_conf *conf)
1218 {
1219         struct rte_eth_dev *bond_dev;
1220
1221         if (valid_bonded_port_id(port_id) != 0)
1222                 return -EINVAL;
1223
1224         if (conf == NULL)
1225                 return -EINVAL;
1226
1227         bond_dev = &rte_eth_devices[port_id];
1228         bond_mode_8023ad_conf_get(bond_dev, conf);
1229         return 0;
1230 }
1231 VERSION_SYMBOL(rte_eth_bond_8023ad_conf_get, _v20, 2.0);
1232
1233 int
1234 rte_eth_bond_8023ad_conf_get_v1607(uint8_t port_id,
1235                 struct rte_eth_bond_8023ad_conf *conf)
1236 {
1237         struct rte_eth_dev *bond_dev;
1238
1239         if (valid_bonded_port_id(port_id) != 0)
1240                 return -EINVAL;
1241
1242         if (conf == NULL)
1243                 return -EINVAL;
1244
1245         bond_dev = &rte_eth_devices[port_id];
1246         bond_mode_8023ad_conf_get_v1607(bond_dev, conf);
1247         return 0;
1248 }
1249 BIND_DEFAULT_SYMBOL(rte_eth_bond_8023ad_conf_get, _v1607, 16.07);
1250 MAP_STATIC_SYMBOL(int rte_eth_bond_8023ad_conf_get(uint8_t port_id,
1251                 struct rte_eth_bond_8023ad_conf *conf),
1252                 rte_eth_bond_8023ad_conf_get_v1607);
1253
1254 static int
1255 bond_8023ad_setup_validate(uint8_t port_id,
1256                 struct rte_eth_bond_8023ad_conf *conf)
1257 {
1258         if (valid_bonded_port_id(port_id) != 0)
1259                 return -EINVAL;
1260
1261         if (conf != NULL) {
1262                 /* Basic sanity check */
1263                 if (conf->slow_periodic_ms == 0 ||
1264                                 conf->fast_periodic_ms >= conf->slow_periodic_ms ||
1265                                 conf->long_timeout_ms == 0 ||
1266                                 conf->short_timeout_ms >= conf->long_timeout_ms ||
1267                                 conf->aggregate_wait_timeout_ms == 0 ||
1268                                 conf->tx_period_ms == 0 ||
1269                                 conf->rx_marker_period_ms == 0 ||
1270                                 conf->update_timeout_ms == 0) {
1271                         RTE_LOG(ERR, PMD, "given mode 4 configuration is invalid\n");
1272                         return -EINVAL;
1273                 }
1274         }
1275
1276         return 0;
1277 }
1278
1279 int
1280 rte_eth_bond_8023ad_setup_v20(uint8_t port_id,
1281                 struct rte_eth_bond_8023ad_conf *conf)
1282 {
1283         struct rte_eth_dev *bond_dev;
1284         int err;
1285
1286         err = bond_8023ad_setup_validate(port_id, conf);
1287         if (err != 0)
1288                 return err;
1289
1290         bond_dev = &rte_eth_devices[port_id];
1291         bond_mode_8023ad_setup_v20(bond_dev, conf);
1292
1293         return 0;
1294 }
1295 VERSION_SYMBOL(rte_eth_bond_8023ad_setup, _v20, 2.0);
1296
1297 int
1298 rte_eth_bond_8023ad_setup_v1607(uint8_t port_id,
1299                 struct rte_eth_bond_8023ad_conf *conf)
1300 {
1301         struct rte_eth_dev *bond_dev;
1302         int err;
1303
1304         err = bond_8023ad_setup_validate(port_id, conf);
1305         if (err != 0)
1306                 return err;
1307
1308         bond_dev = &rte_eth_devices[port_id];
1309         bond_mode_8023ad_setup(bond_dev, conf);
1310
1311         return 0;
1312 }
1313 BIND_DEFAULT_SYMBOL(rte_eth_bond_8023ad_setup, _v1607, 16.07);
1314 MAP_STATIC_SYMBOL(int rte_eth_bond_8023ad_setup(uint8_t port_id,
1315                 struct rte_eth_bond_8023ad_conf *conf),
1316                 rte_eth_bond_8023ad_setup_v1607);
1317
1318 int
1319 rte_eth_bond_8023ad_slave_info(uint8_t port_id, uint8_t slave_id,
1320                 struct rte_eth_bond_8023ad_slave_info *info)
1321 {
1322         struct rte_eth_dev *bond_dev;
1323         struct bond_dev_private *internals;
1324         struct port *port;
1325
1326         if (info == NULL || valid_bonded_port_id(port_id) != 0 ||
1327                         rte_eth_bond_mode_get(port_id) != BONDING_MODE_8023AD)
1328                 return -EINVAL;
1329
1330         bond_dev = &rte_eth_devices[port_id];
1331
1332         internals = bond_dev->data->dev_private;
1333         if (find_slave_by_id(internals->active_slaves,
1334                         internals->active_slave_count, slave_id) ==
1335                                 internals->active_slave_count)
1336                 return -EINVAL;
1337
1338         port = &mode_8023ad_ports[slave_id];
1339         info->selected = port->selected;
1340
1341         info->actor_state = port->actor_state;
1342         rte_memcpy(&info->actor, &port->actor, sizeof(port->actor));
1343
1344         info->partner_state = port->partner_state;
1345         rte_memcpy(&info->partner, &port->partner, sizeof(port->partner));
1346
1347         info->agg_port_id = port->aggregator_port_id;
1348         return 0;
1349 }
1350
1351 static int
1352 bond_8023ad_ext_validate(uint8_t port_id, uint8_t slave_id)
1353 {
1354         struct rte_eth_dev *bond_dev;
1355         struct bond_dev_private *internals;
1356         struct mode8023ad_private *mode4;
1357
1358         if (rte_eth_bond_mode_get(port_id) != BONDING_MODE_8023AD)
1359                 return -EINVAL;
1360
1361         bond_dev = &rte_eth_devices[port_id];
1362
1363         if (!bond_dev->data->dev_started)
1364                 return -EINVAL;
1365
1366         internals = bond_dev->data->dev_private;
1367         if (find_slave_by_id(internals->active_slaves,
1368                         internals->active_slave_count, slave_id) ==
1369                                 internals->active_slave_count)
1370                 return -EINVAL;
1371
1372         mode4 = &internals->mode4;
1373         if (mode4->slowrx_cb == NULL)
1374                 return -EINVAL;
1375
1376         return 0;
1377 }
1378
1379 int
1380 rte_eth_bond_8023ad_ext_collect(uint8_t port_id, uint8_t slave_id, int enabled)
1381 {
1382         struct port *port;
1383         int res;
1384
1385         res = bond_8023ad_ext_validate(port_id, slave_id);
1386         if (res != 0)
1387                 return res;
1388
1389         port = &mode_8023ad_ports[slave_id];
1390
1391         if (enabled)
1392                 ACTOR_STATE_SET(port, COLLECTING);
1393         else
1394                 ACTOR_STATE_CLR(port, COLLECTING);
1395
1396         return 0;
1397 }
1398
1399 int
1400 rte_eth_bond_8023ad_ext_distrib(uint8_t port_id, uint8_t slave_id, int enabled)
1401 {
1402         struct port *port;
1403         int res;
1404
1405         res = bond_8023ad_ext_validate(port_id, slave_id);
1406         if (res != 0)
1407                 return res;
1408
1409         port = &mode_8023ad_ports[slave_id];
1410
1411         if (enabled)
1412                 ACTOR_STATE_SET(port, DISTRIBUTING);
1413         else
1414                 ACTOR_STATE_CLR(port, DISTRIBUTING);
1415
1416         return 0;
1417 }
1418
1419 int
1420 rte_eth_bond_8023ad_ext_distrib_get(uint8_t port_id, uint8_t slave_id)
1421 {
1422         struct port *port;
1423         int err;
1424
1425         err = bond_8023ad_ext_validate(port_id, slave_id);
1426         if (err != 0)
1427                 return err;
1428
1429         port = &mode_8023ad_ports[slave_id];
1430         return ACTOR_STATE(port, DISTRIBUTING);
1431 }
1432
1433 int
1434 rte_eth_bond_8023ad_ext_collect_get(uint8_t port_id, uint8_t slave_id)
1435 {
1436         struct port *port;
1437         int err;
1438
1439         err = bond_8023ad_ext_validate(port_id, slave_id);
1440         if (err != 0)
1441                 return err;
1442
1443         port = &mode_8023ad_ports[slave_id];
1444         return ACTOR_STATE(port, COLLECTING);
1445 }
1446
1447 int
1448 rte_eth_bond_8023ad_ext_slowtx(uint8_t port_id, uint8_t slave_id,
1449                 struct rte_mbuf *lacp_pkt)
1450 {
1451         struct port *port;
1452         int res;
1453
1454         res = bond_8023ad_ext_validate(port_id, slave_id);
1455         if (res != 0)
1456                 return res;
1457
1458         port = &mode_8023ad_ports[slave_id];
1459
1460         if (rte_pktmbuf_pkt_len(lacp_pkt) < sizeof(struct lacpdu_header))
1461                 return -EINVAL;
1462
1463         struct lacpdu_header *lacp;
1464
1465         /* only enqueue LACPDUs */
1466         lacp = rte_pktmbuf_mtod(lacp_pkt, struct lacpdu_header *);
1467         if (lacp->lacpdu.subtype != SLOW_SUBTYPE_LACP)
1468                 return -EINVAL;
1469
1470         MODE4_DEBUG("sending LACP frame\n");
1471
1472         return rte_ring_enqueue(port->tx_ring, lacp_pkt);
1473 }
1474
1475 static void
1476 bond_mode_8023ad_ext_periodic_cb(void *arg)
1477 {
1478         struct rte_eth_dev *bond_dev = arg;
1479         struct bond_dev_private *internals = bond_dev->data->dev_private;
1480         struct mode8023ad_private *mode4 = &internals->mode4;
1481         struct port *port;
1482         void *pkt = NULL;
1483         uint16_t i, slave_id;
1484
1485         for (i = 0; i < internals->active_slave_count; i++) {
1486                 slave_id = internals->active_slaves[i];
1487                 port = &mode_8023ad_ports[slave_id];
1488
1489                 if (rte_ring_dequeue(port->rx_ring, &pkt) == 0) {
1490                         struct rte_mbuf *lacp_pkt = pkt;
1491                         struct lacpdu_header *lacp;
1492
1493                         lacp = rte_pktmbuf_mtod(lacp_pkt,
1494                                                 struct lacpdu_header *);
1495                         RTE_VERIFY(lacp->lacpdu.subtype == SLOW_SUBTYPE_LACP);
1496
1497                         /* This is LACP frame so pass it to rx callback.
1498                          * Callback is responsible for freeing mbuf.
1499                          */
1500                         mode4->slowrx_cb(slave_id, lacp_pkt);
1501                 }
1502         }
1503
1504         rte_eal_alarm_set(internals->mode4.update_timeout_us,
1505                         bond_mode_8023ad_ext_periodic_cb, arg);
1506 }