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
 890         socket_id = rte_eth_dev_socket_id(slave_id);
 891         if (socket_id == (int)LCORE_ID_ANY)
 892                 socket_id = rte_socket_id();
 893
 894         element_size = sizeof(struct slow_protocol_frame) +
 895                                 RTE_PKTMBUF_HEADROOM;
 896
 897         /* The size of the mempool should be at least:
 898          * the sum of the TX descriptors + BOND_MODE_8023AX_SLAVE_TX_PKTS */
 899         total_tx_desc = BOND_MODE_8023AX_SLAVE_TX_PKTS;
 900         for (q_id = 0; q_id < bond_dev->data->nb_tx_queues; q_id++) {
 901                 bd_tx_q = (struct bond_tx_queue*)bond_dev->data->tx_queues[q_id];
 902                 total_tx_desc += bd_tx_q->nb_tx_desc;
 903         }
 904
 905         snprintf(mem_name, RTE_DIM(mem_name), "slave_port%u_pool", slave_id);
 906         port->mbuf_pool = rte_pktmbuf_pool_create(mem_name, total_tx_desc,
 907                 RTE_MEMPOOL_CACHE_MAX_SIZE >= 32 ?
 908                         32 : RTE_MEMPOOL_CACHE_MAX_SIZE,
 909                 0, element_size, socket_id);
 910
 911         /* Any memory allocation failure in initialization is critical because
 912          * resources can't be free, so reinitialization is impossible. */
 913         if (port->mbuf_pool == NULL) {
 914                 rte_panic("Slave %u: Failed to create memory pool '%s': %s\n",
 915                         slave_id, mem_name, rte_strerror(rte_errno));
 916         }
 917
 918         snprintf(mem_name, RTE_DIM(mem_name), "slave_%u_rx", slave_id);
 919         port->rx_ring = rte_ring_create(mem_name,
 920                         rte_align32pow2(BOND_MODE_8023AX_SLAVE_RX_PKTS), socket_id, 0);
 921
 922         if (port->rx_ring == NULL) {
 923                 rte_panic("Slave %u: Failed to create rx ring '%s': %s\n", slave_id,
 924                         mem_name, rte_strerror(rte_errno));
 925         }
 926
 927         /* TX ring is at least one pkt longer to make room for marker packet. */
 928         snprintf(mem_name, RTE_DIM(mem_name), "slave_%u_tx", slave_id);
 929         port->tx_ring = rte_ring_create(mem_name,
 930                         rte_align32pow2(BOND_MODE_8023AX_SLAVE_TX_PKTS + 1), socket_id, 0);
 931
 932         if (port->tx_ring == NULL) {
 933                 rte_panic("Slave %u: Failed to create tx ring '%s': %s\n", slave_id,
 934                         mem_name, rte_strerror(rte_errno));
 935         }
 936 }
 937
 938 int
 939 bond_mode_8023ad_deactivate_slave(struct rte_eth_dev *bond_dev,
 940                 uint8_t slave_id)
 941 {
 942         struct bond_dev_private *internals = bond_dev->data->dev_private;
 943         void *pkt = NULL;
 944         struct port *port;
 945         uint8_t i;
 946
 947         /* Given slave must be in active list */
 948         RTE_ASSERT(find_slave_by_id(internals->active_slaves,
 949         internals->active_slave_count, slave_id) < internals->active_slave_count);
 950
 951         /* Exclude slave from transmit policy. If this slave is an aggregator
 952          * make all aggregated slaves unselected to force selection logic
 953          * to select suitable aggregator for this port. */
 954         for (i = 0; i < internals->active_slave_count; i++) {
 955                 port = &mode_8023ad_ports[internals->active_slaves[i]];
 956                 if (port->aggregator_port_id != slave_id)
 957                         continue;
 958
 959                 port->selected = UNSELECTED;
 960
 961                 /* Use default aggregator */
 962                 port->aggregator_port_id = internals->active_slaves[i];
 963         }
 964
 965         port = &mode_8023ad_ports[slave_id];
 966         port->selected = UNSELECTED;
 967         port->actor_state &= ~(STATE_SYNCHRONIZATION | STATE_DISTRIBUTING |
 968                         STATE_COLLECTING);
 969
 970         while (rte_ring_dequeue(port->rx_ring, &pkt) == 0)
 971                 rte_pktmbuf_free((struct rte_mbuf *)pkt);
 972
 973         while (rte_ring_dequeue(port->tx_ring, &pkt) == 0)
 974                         rte_pktmbuf_free((struct rte_mbuf *)pkt);
 975         return 0;
 976 }
 977
 978 void
 979 bond_mode_8023ad_mac_address_update(struct rte_eth_dev *bond_dev)
 980 {
 981         struct bond_dev_private *internals = bond_dev->data->dev_private;
 982         struct ether_addr slave_addr;
 983         struct port *slave, *agg_slave;
 984         uint8_t slave_id, i, j;
 985
 986         bond_mode_8023ad_stop(bond_dev);
 987
 988         for (i = 0; i < internals->active_slave_count; i++) {
 989                 slave_id = internals->active_slaves[i];
 990                 slave = &mode_8023ad_ports[slave_id];
 991                 rte_eth_macaddr_get(slave_id, &slave_addr);
 992
 993                 if (is_same_ether_addr(&slave_addr, &slave->actor.system))
 994                         continue;
 995
 996                 ether_addr_copy(&slave_addr, &slave->actor.system);
 997                 /* Do nothing if this port is not an aggregator. In other case
 998                  * Set NTT flag on every port that use this aggregator. */
 999                 if (slave->aggregator_port_id != slave_id)
1000                         continue;
1001
1002                 for (j = 0; j < internals->active_slave_count; j++) {
1003                         agg_slave = &mode_8023ad_ports[internals->active_slaves[j]];
1004                         if (agg_slave->aggregator_port_id == slave_id)
1005                                 SM_FLAG_SET(agg_slave, NTT);
1006                 }
1007         }
1008
1009         if (bond_dev->data->dev_started)
1010                 bond_mode_8023ad_start(bond_dev);
1011 }
1012
1013 static void
1014 bond_mode_8023ad_conf_get(struct rte_eth_dev *dev,
1015                 struct rte_eth_bond_8023ad_conf *conf)
1016 {
1017         struct bond_dev_private *internals = dev->data->dev_private;
1018         struct mode8023ad_private *mode4 = &internals->mode4;
1019         uint64_t ms_ticks = rte_get_tsc_hz() / 1000;
1020
1021         conf->fast_periodic_ms = mode4->fast_periodic_timeout / ms_ticks;
1022         conf->slow_periodic_ms = mode4->slow_periodic_timeout / ms_ticks;
1023         conf->short_timeout_ms = mode4->short_timeout / ms_ticks;
1024         conf->long_timeout_ms = mode4->long_timeout / ms_ticks;
1025         conf->aggregate_wait_timeout_ms = mode4->aggregate_wait_timeout / ms_ticks;
1026         conf->tx_period_ms = mode4->tx_period_timeout / ms_ticks;
1027         conf->update_timeout_ms = mode4->update_timeout_us / 1000;
1028         conf->rx_marker_period_ms = mode4->rx_marker_timeout / ms_ticks;
1029 }
1030
1031 static void
1032 bond_mode_8023ad_conf_get_v1607(struct rte_eth_dev *dev,
1033                 struct rte_eth_bond_8023ad_conf *conf)
1034 {
1035         struct bond_dev_private *internals = dev->data->dev_private;
1036         struct mode8023ad_private *mode4 = &internals->mode4;
1037
1038         bond_mode_8023ad_conf_get(dev, conf);
1039         conf->slowrx_cb = mode4->slowrx_cb;
1040 }
1041
1042 static void
1043 bond_mode_8023ad_conf_get_default(struct rte_eth_bond_8023ad_conf *conf)
1044 {
1045         conf->fast_periodic_ms = BOND_8023AD_FAST_PERIODIC_MS;
1046         conf->slow_periodic_ms = BOND_8023AD_SLOW_PERIODIC_MS;
1047         conf->short_timeout_ms = BOND_8023AD_SHORT_TIMEOUT_MS;
1048         conf->long_timeout_ms = BOND_8023AD_LONG_TIMEOUT_MS;
1049         conf->aggregate_wait_timeout_ms = BOND_8023AD_AGGREGATE_WAIT_TIMEOUT_MS;
1050         conf->tx_period_ms = BOND_8023AD_TX_MACHINE_PERIOD_MS;
1051         conf->rx_marker_period_ms = BOND_8023AD_RX_MARKER_PERIOD_MS;
1052         conf->update_timeout_ms = BOND_MODE_8023AX_UPDATE_TIMEOUT_MS;
1053         conf->slowrx_cb = NULL;
1054 }
1055
1056 static void
1057 bond_mode_8023ad_conf_assign(struct mode8023ad_private *mode4,
1058                 struct rte_eth_bond_8023ad_conf *conf)
1059 {
1060         uint64_t ms_ticks = rte_get_tsc_hz() / 1000;
1061
1062         mode4->fast_periodic_timeout = conf->fast_periodic_ms * ms_ticks;
1063         mode4->slow_periodic_timeout = conf->slow_periodic_ms * ms_ticks;
1064         mode4->short_timeout = conf->short_timeout_ms * ms_ticks;
1065         mode4->long_timeout = conf->long_timeout_ms * ms_ticks;
1066         mode4->aggregate_wait_timeout = conf->aggregate_wait_timeout_ms * ms_ticks;
1067         mode4->tx_period_timeout = conf->tx_period_ms * ms_ticks;
1068         mode4->rx_marker_timeout = conf->rx_marker_period_ms * ms_ticks;
1069         mode4->update_timeout_us = conf->update_timeout_ms * 1000;
1070 }
1071
1072 static void
1073 bond_mode_8023ad_setup_v20(struct rte_eth_dev *dev,
1074                 struct rte_eth_bond_8023ad_conf *conf)
1075 {
1076         struct rte_eth_bond_8023ad_conf def_conf;
1077         struct bond_dev_private *internals = dev->data->dev_private;
1078         struct mode8023ad_private *mode4 = &internals->mode4;
1079
1080         if (conf == NULL) {
1081                 conf = &def_conf;
1082                 bond_mode_8023ad_conf_get_default(conf);
1083         }
1084
1085         bond_mode_8023ad_stop(dev);
1086         bond_mode_8023ad_conf_assign(mode4, conf);
1087
1088         if (dev->data->dev_started)
1089                 bond_mode_8023ad_start(dev);
1090 }
1091
1092
1093 void
1094 bond_mode_8023ad_setup(struct rte_eth_dev *dev,
1095                 struct rte_eth_bond_8023ad_conf *conf)
1096 {
1097         struct rte_eth_bond_8023ad_conf def_conf;
1098         struct bond_dev_private *internals = dev->data->dev_private;
1099         struct mode8023ad_private *mode4 = &internals->mode4;
1100
1101         if (conf == NULL) {
1102                 conf = &def_conf;
1103                 bond_mode_8023ad_conf_get_default(conf);
1104         }
1105
1106         bond_mode_8023ad_stop(dev);
1107         bond_mode_8023ad_conf_assign(mode4, conf);
1108         mode4->slowrx_cb = conf->slowrx_cb;
1109
1110         if (dev->data->dev_started)
1111                 bond_mode_8023ad_start(dev);
1112 }
1113
1114 int
1115 bond_mode_8023ad_enable(struct rte_eth_dev *bond_dev)
1116 {
1117         struct bond_dev_private *internals = bond_dev->data->dev_private;
1118         uint8_t i;
1119
1120         for (i = 0; i < internals->active_slave_count; i++)
1121                 bond_mode_8023ad_activate_slave(bond_dev, i);
1122
1123         return 0;
1124 }
1125
1126 int
1127 bond_mode_8023ad_start(struct rte_eth_dev *bond_dev)
1128 {
1129         struct bond_dev_private *internals = bond_dev->data->dev_private;
1130         struct mode8023ad_private *mode4 = &internals->mode4;
1131         static const uint64_t us = BOND_MODE_8023AX_UPDATE_TIMEOUT_MS * 1000;
1132
1133         if (mode4->slowrx_cb)
1134                 return rte_eal_alarm_set(us, &bond_mode_8023ad_ext_periodic_cb,
1135                                          bond_dev);
1136
1137         return rte_eal_alarm_set(us, &bond_mode_8023ad_periodic_cb, bond_dev);
1138 }
1139
1140 void
1141 bond_mode_8023ad_stop(struct rte_eth_dev *bond_dev)
1142 {
1143         struct bond_dev_private *internals = bond_dev->data->dev_private;
1144         struct mode8023ad_private *mode4 = &internals->mode4;
1145
1146         if (mode4->slowrx_cb) {
1147                 rte_eal_alarm_cancel(&bond_mode_8023ad_ext_periodic_cb,
1148                                      bond_dev);
1149                 return;
1150         }
1151         rte_eal_alarm_cancel(&bond_mode_8023ad_periodic_cb, bond_dev);
1152 }
1153
1154 void
1155 bond_mode_8023ad_handle_slow_pkt(struct bond_dev_private *internals,
1156         uint8_t slave_id, struct rte_mbuf *pkt)
1157 {
1158         struct mode8023ad_private *mode4 = &internals->mode4;
1159         struct port *port = &mode_8023ad_ports[slave_id];
1160         struct marker_header *m_hdr;
1161         uint64_t marker_timer, old_marker_timer;
1162         int retval;
1163         uint8_t wrn, subtype;
1164         /* If packet is a marker, we send response now by reusing given packet
1165          * and update only source MAC, destination MAC is multicast so don't
1166          * update it. Other frames will be handled later by state machines */
1167         subtype = rte_pktmbuf_mtod(pkt,
1168                         struct slow_protocol_frame *)->slow_protocol.subtype;
1169
1170         if (subtype == SLOW_SUBTYPE_MARKER) {
1171                 m_hdr = rte_pktmbuf_mtod(pkt, struct marker_header *);
1172
1173                 if (likely(m_hdr->marker.tlv_type_marker != MARKER_TLV_TYPE_INFO)) {
1174                         wrn = WRN_UNKNOWN_MARKER_TYPE;
1175                         goto free_out;
1176                 }
1177
1178                 /* Setup marker timer. Do it in loop in case concurrent access. */
1179                 do {
1180                         old_marker_timer = port->rx_marker_timer;
1181                         if (!timer_is_expired(&old_marker_timer)) {
1182                                 wrn = WRN_RX_MARKER_TO_FAST;
1183                                 goto free_out;
1184                         }
1185
1186                         timer_set(&marker_timer, mode4->rx_marker_timeout);
1187                         retval = rte_atomic64_cmpset(&port->rx_marker_timer,
1188                                 old_marker_timer, marker_timer);
1189                 } while (unlikely(retval == 0));
1190
1191                 m_hdr->marker.tlv_type_marker = MARKER_TLV_TYPE_RESP;
1192                 rte_eth_macaddr_get(slave_id, &m_hdr->eth_hdr.s_addr);
1193
1194                 if (unlikely(rte_ring_enqueue(port->tx_ring, pkt) == -ENOBUFS)) {
1195                         /* reset timer */
1196                         port->rx_marker_timer = 0;
1197                         wrn = WRN_TX_QUEUE_FULL;
1198                         goto free_out;
1199                 }
1200         } else if (likely(subtype == SLOW_SUBTYPE_LACP)) {
1201                 if (unlikely(rte_ring_enqueue(port->rx_ring, pkt) == -ENOBUFS)) {
1202                         /* If RX fing full free lacpdu message and drop packet */
1203                         wrn = WRN_RX_QUEUE_FULL;
1204                         goto free_out;
1205                 }
1206         } else {
1207                 wrn = WRN_UNKNOWN_SLOW_TYPE;
1208                 goto free_out;
1209         }
1210
1211         return;
1212
1213 free_out:
1214         set_warning_flags(port, wrn);
1215         rte_pktmbuf_free(pkt);
1216 }
1217
1218 int
1219 rte_eth_bond_8023ad_conf_get_v20(uint8_t port_id,
1220                 struct rte_eth_bond_8023ad_conf *conf)
1221 {
1222         struct rte_eth_dev *bond_dev;
1223
1224         if (valid_bonded_port_id(port_id) != 0)
1225                 return -EINVAL;
1226
1227         if (conf == NULL)
1228                 return -EINVAL;
1229
1230         bond_dev = &rte_eth_devices[port_id];
1231         bond_mode_8023ad_conf_get(bond_dev, conf);
1232         return 0;
1233 }
1234 VERSION_SYMBOL(rte_eth_bond_8023ad_conf_get, _v20, 2.0);
1235
1236 int
1237 rte_eth_bond_8023ad_conf_get_v1607(uint8_t port_id,
1238                 struct rte_eth_bond_8023ad_conf *conf)
1239 {
1240         struct rte_eth_dev *bond_dev;
1241
1242         if (valid_bonded_port_id(port_id) != 0)
1243                 return -EINVAL;
1244
1245         if (conf == NULL)
1246                 return -EINVAL;
1247
1248         bond_dev = &rte_eth_devices[port_id];
1249         bond_mode_8023ad_conf_get_v1607(bond_dev, conf);
1250         return 0;
1251 }
1252 BIND_DEFAULT_SYMBOL(rte_eth_bond_8023ad_conf_get, _v1607, 16.07);
1253 MAP_STATIC_SYMBOL(int rte_eth_bond_8023ad_conf_get(uint8_t port_id,
1254                 struct rte_eth_bond_8023ad_conf *conf),
1255                 rte_eth_bond_8023ad_conf_get_v1607);
1256
1257 static int
1258 bond_8023ad_setup_validate(uint8_t port_id,
1259                 struct rte_eth_bond_8023ad_conf *conf)
1260 {
1261         if (valid_bonded_port_id(port_id) != 0)
1262                 return -EINVAL;
1263
1264         if (conf != NULL) {
1265                 /* Basic sanity check */
1266                 if (conf->slow_periodic_ms == 0 ||
1267                                 conf->fast_periodic_ms >= conf->slow_periodic_ms ||
1268                                 conf->long_timeout_ms == 0 ||
1269                                 conf->short_timeout_ms >= conf->long_timeout_ms ||
1270                                 conf->aggregate_wait_timeout_ms == 0 ||
1271                                 conf->tx_period_ms == 0 ||
1272                                 conf->rx_marker_period_ms == 0 ||
1273                                 conf->update_timeout_ms == 0) {
1274                         RTE_LOG(ERR, PMD, "given mode 4 configuration is invalid\n");
1275                         return -EINVAL;
1276                 }
1277         }
1278
1279         return 0;
1280 }
1281
1282 int
1283 rte_eth_bond_8023ad_setup_v20(uint8_t port_id,
1284                 struct rte_eth_bond_8023ad_conf *conf)
1285 {
1286         struct rte_eth_dev *bond_dev;
1287         int err;
1288
1289         err = bond_8023ad_setup_validate(port_id, conf);
1290         if (err != 0)
1291                 return err;
1292
1293         bond_dev = &rte_eth_devices[port_id];
1294         bond_mode_8023ad_setup_v20(bond_dev, conf);
1295
1296         return 0;
1297 }
1298 VERSION_SYMBOL(rte_eth_bond_8023ad_setup, _v20, 2.0);
1299
1300 int
1301 rte_eth_bond_8023ad_setup_v1607(uint8_t port_id,
1302                 struct rte_eth_bond_8023ad_conf *conf)
1303 {
1304         struct rte_eth_dev *bond_dev;
1305         int err;
1306
1307         err = bond_8023ad_setup_validate(port_id, conf);
1308         if (err != 0)
1309                 return err;
1310
1311         bond_dev = &rte_eth_devices[port_id];
1312         bond_mode_8023ad_setup(bond_dev, conf);
1313
1314         return 0;
1315 }
1316 BIND_DEFAULT_SYMBOL(rte_eth_bond_8023ad_setup, _v1607, 16.07);
1317 MAP_STATIC_SYMBOL(int rte_eth_bond_8023ad_setup(uint8_t port_id,
1318                 struct rte_eth_bond_8023ad_conf *conf),
1319                 rte_eth_bond_8023ad_setup_v1607);
1320
1321 int
1322 rte_eth_bond_8023ad_slave_info(uint8_t port_id, uint8_t slave_id,
1323                 struct rte_eth_bond_8023ad_slave_info *info)
1324 {
1325         struct rte_eth_dev *bond_dev;
1326         struct bond_dev_private *internals;
1327         struct port *port;
1328
1329         if (info == NULL || valid_bonded_port_id(port_id) != 0 ||
1330                         rte_eth_bond_mode_get(port_id) != BONDING_MODE_8023AD)
1331                 return -EINVAL;
1332
1333         bond_dev = &rte_eth_devices[port_id];
1334
1335         internals = bond_dev->data->dev_private;
1336         if (find_slave_by_id(internals->active_slaves,
1337                         internals->active_slave_count, slave_id) ==
1338                                 internals->active_slave_count)
1339                 return -EINVAL;
1340
1341         port = &mode_8023ad_ports[slave_id];
1342         info->selected = port->selected;
1343
1344         info->actor_state = port->actor_state;
1345         rte_memcpy(&info->actor, &port->actor, sizeof(port->actor));
1346
1347         info->partner_state = port->partner_state;
1348         rte_memcpy(&info->partner, &port->partner, sizeof(port->partner));
1349
1350         info->agg_port_id = port->aggregator_port_id;
1351         return 0;
1352 }
1353
1354 static int
1355 bond_8023ad_ext_validate(uint8_t port_id, uint8_t slave_id)
1356 {
1357         struct rte_eth_dev *bond_dev;
1358         struct bond_dev_private *internals;
1359         struct mode8023ad_private *mode4;
1360
1361         if (rte_eth_bond_mode_get(port_id) != BONDING_MODE_8023AD)
1362                 return -EINVAL;
1363
1364         bond_dev = &rte_eth_devices[port_id];
1365
1366         if (!bond_dev->data->dev_started)
1367                 return -EINVAL;
1368
1369         internals = bond_dev->data->dev_private;
1370         if (find_slave_by_id(internals->active_slaves,
1371                         internals->active_slave_count, slave_id) ==
1372                                 internals->active_slave_count)
1373                 return -EINVAL;
1374
1375         mode4 = &internals->mode4;
1376         if (mode4->slowrx_cb == NULL)
1377                 return -EINVAL;
1378
1379         return 0;
1380 }
1381
1382 int
1383 rte_eth_bond_8023ad_ext_collect(uint8_t port_id, uint8_t slave_id, int enabled)
1384 {
1385         struct port *port;
1386         int res;
1387
1388         res = bond_8023ad_ext_validate(port_id, slave_id);
1389         if (res != 0)
1390                 return res;
1391
1392         port = &mode_8023ad_ports[slave_id];
1393
1394         if (enabled)
1395                 ACTOR_STATE_SET(port, COLLECTING);
1396         else
1397                 ACTOR_STATE_CLR(port, COLLECTING);
1398
1399         return 0;
1400 }
1401
1402 int
1403 rte_eth_bond_8023ad_ext_distrib(uint8_t port_id, uint8_t slave_id, int enabled)
1404 {
1405         struct port *port;
1406         int res;
1407
1408         res = bond_8023ad_ext_validate(port_id, slave_id);
1409         if (res != 0)
1410                 return res;
1411
1412         port = &mode_8023ad_ports[slave_id];
1413
1414         if (enabled)
1415                 ACTOR_STATE_SET(port, DISTRIBUTING);
1416         else
1417                 ACTOR_STATE_CLR(port, DISTRIBUTING);
1418
1419         return 0;
1420 }
1421
1422 int
1423 rte_eth_bond_8023ad_ext_distrib_get(uint8_t port_id, uint8_t slave_id)
1424 {
1425         struct port *port;
1426         int err;
1427
1428         err = bond_8023ad_ext_validate(port_id, slave_id);
1429         if (err != 0)
1430                 return err;
1431
1432         port = &mode_8023ad_ports[slave_id];
1433         return ACTOR_STATE(port, DISTRIBUTING);
1434 }
1435
1436 int
1437 rte_eth_bond_8023ad_ext_collect_get(uint8_t port_id, uint8_t slave_id)
1438 {
1439         struct port *port;
1440         int err;
1441
1442         err = bond_8023ad_ext_validate(port_id, slave_id);
1443         if (err != 0)
1444                 return err;
1445
1446         port = &mode_8023ad_ports[slave_id];
1447         return ACTOR_STATE(port, COLLECTING);
1448 }
1449
1450 int
1451 rte_eth_bond_8023ad_ext_slowtx(uint8_t port_id, uint8_t slave_id,
1452                 struct rte_mbuf *lacp_pkt)
1453 {
1454         struct port *port;
1455         int res;
1456
1457         res = bond_8023ad_ext_validate(port_id, slave_id);
1458         if (res != 0)
1459                 return res;
1460
1461         port = &mode_8023ad_ports[slave_id];
1462
1463         if (rte_pktmbuf_pkt_len(lacp_pkt) < sizeof(struct lacpdu_header))
1464                 return -EINVAL;
1465
1466         struct lacpdu_header *lacp;
1467
1468         /* only enqueue LACPDUs */
1469         lacp = rte_pktmbuf_mtod(lacp_pkt, struct lacpdu_header *);
1470         if (lacp->lacpdu.subtype != SLOW_SUBTYPE_LACP)
1471                 return -EINVAL;
1472
1473         MODE4_DEBUG("sending LACP frame\n");
1474
1475         return rte_ring_enqueue(port->tx_ring, lacp_pkt);
1476 }
1477
1478 static void
1479 bond_mode_8023ad_ext_periodic_cb(void *arg)
1480 {
1481         struct rte_eth_dev *bond_dev = arg;
1482         struct bond_dev_private *internals = bond_dev->data->dev_private;
1483         struct mode8023ad_private *mode4 = &internals->mode4;
1484         struct port *port;
1485         void *pkt = NULL;
1486         uint16_t i, slave_id;
1487
1488         for (i = 0; i < internals->active_slave_count; i++) {
1489                 slave_id = internals->active_slaves[i];
1490                 port = &mode_8023ad_ports[slave_id];
1491
1492                 if (rte_ring_dequeue(port->rx_ring, &pkt) == 0) {
1493                         struct rte_mbuf *lacp_pkt = pkt;
1494                         struct lacpdu_header *lacp;
1495
1496                         lacp = rte_pktmbuf_mtod(lacp_pkt,
1497                                                 struct lacpdu_header *);
1498                         RTE_VERIFY(lacp->lacpdu.subtype == SLOW_SUBTYPE_LACP);
1499
1500                         /* This is LACP frame so pass it to rx callback.
1501                          * Callback is responsible for freeing mbuf.
1502                          */
1503                         mode4->slowrx_cb(slave_id, lacp_pkt);
1504                 }
1505         }
1506
1507         rte_eal_alarm_set(internals->mode4.update_timeout_us,
1508                         bond_mode_8023ad_ext_periodic_cb, arg);
1509 }