1 /* Copyright (c) 2011, 2012, 2013 Nicira, Inc.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at:
7 * http://www.apache.org/licenses/LICENSE-2.0
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
21 #include "connectivity.h"
22 #include "dynamic-string.h"
27 #include "poll-loop.h"
35 VLOG_DEFINE_THIS_MODULE(lacp);
37 /* Masks for lacp_info state member. */
38 #define LACP_STATE_ACT 0x01 /* Activity. Active or passive? */
39 #define LACP_STATE_TIME 0x02 /* Timeout. Short or long timeout? */
40 #define LACP_STATE_AGG 0x04 /* Aggregation. Is the link is bondable? */
41 #define LACP_STATE_SYNC 0x08 /* Synchronization. Is the link in up to date? */
42 #define LACP_STATE_COL 0x10 /* Collecting. Is the link receiving frames? */
43 #define LACP_STATE_DIST 0x20 /* Distributing. Is the link sending frames? */
44 #define LACP_STATE_DEF 0x40 /* Defaulted. Using default partner info? */
45 #define LACP_STATE_EXP 0x80 /* Expired. Using expired partner info? */
47 #define LACP_FAST_TIME_TX 1000 /* Fast transmission rate. */
48 #define LACP_SLOW_TIME_TX 30000 /* Slow transmission rate. */
49 #define LACP_RX_MULTIPLIER 3 /* Multiply by TX rate to get RX rate. */
51 #define LACP_INFO_LEN 15
54 ovs_be16 sys_priority; /* System priority. */
55 uint8_t sys_id[ETH_ADDR_LEN]; /* System ID. */
56 ovs_be16 key; /* Operational key. */
57 ovs_be16 port_priority; /* Port priority. */
58 ovs_be16 port_id; /* Port ID. */
59 uint8_t state; /* State mask. See LACP_STATE macros. */
61 BUILD_ASSERT_DECL(LACP_INFO_LEN == sizeof(struct lacp_info));
63 #define LACP_PDU_LEN 110
66 uint8_t subtype; /* Always 1. */
67 uint8_t version; /* Always 1. */
69 uint8_t actor_type; /* Always 1. */
70 uint8_t actor_len; /* Always 20. */
71 struct lacp_info actor; /* LACP actor information. */
72 uint8_t z1[3]; /* Reserved. Always 0. */
74 uint8_t partner_type; /* Always 2. */
75 uint8_t partner_len; /* Always 20. */
76 struct lacp_info partner; /* LACP partner information. */
77 uint8_t z2[3]; /* Reserved. Always 0. */
79 uint8_t collector_type; /* Always 3. */
80 uint8_t collector_len; /* Always 16. */
81 ovs_be16 collector_delay; /* Maximum collector delay. Set to UINT16_MAX. */
82 uint8_t z3[64]; /* Combination of several fields. Always 0. */
84 BUILD_ASSERT_DECL(LACP_PDU_LEN == sizeof(struct lacp_pdu));
89 LACP_CURRENT, /* Current State. Partner up to date. */
90 LACP_EXPIRED, /* Expired State. Partner out of date. */
91 LACP_DEFAULTED, /* Defaulted State. No partner. */
95 struct list node; /* Node in all_lacps list. */
96 char *name; /* Name of this lacp object. */
97 uint8_t sys_id[ETH_ADDR_LEN]; /* System ID. */
98 uint16_t sys_priority; /* System Priority. */
99 bool active; /* Active or Passive. */
101 struct hmap slaves; /* Slaves this LACP object controls. */
102 struct slave *key_slave; /* Slave whose ID will be the aggregation key. */
104 bool fast; /* True if using fast probe interval. */
105 bool negotiated; /* True if LACP negotiations were successful. */
106 bool update; /* True if lacp_update() needs to be called. */
107 bool fallback_ab; /* True if fallback to active-backup on LACP failure. */
109 struct ovs_refcount ref_cnt;
113 void *aux; /* Handle used to identify this slave. */
114 struct hmap_node node; /* Node in master's slaves map. */
116 struct lacp *lacp; /* LACP object containing this slave. */
117 uint16_t port_id; /* Port ID. */
118 uint16_t port_priority; /* Port Priority. */
119 uint16_t key; /* Aggregation Key. 0 if default. */
120 char *name; /* Name of this slave. */
122 enum slave_status status; /* Slave status. */
123 bool attached; /* Attached. Traffic may flow. */
124 struct lacp_info partner; /* Partner information. */
125 struct lacp_info ntt_actor; /* Used to decide if we Need To Transmit. */
126 struct timer tx; /* Next message transmission timer. */
127 struct timer rx; /* Expected message receive timer. */
130 static struct ovs_mutex mutex;
131 static struct list all_lacps__ = LIST_INITIALIZER(&all_lacps__);
132 static struct list *const all_lacps OVS_GUARDED_BY(mutex) = &all_lacps__;
134 static void lacp_update_attached(struct lacp *) OVS_REQUIRES(mutex);
136 static void slave_destroy(struct slave *) OVS_REQUIRES(mutex);
137 static void slave_set_defaulted(struct slave *) OVS_REQUIRES(mutex);
138 static void slave_set_expired(struct slave *) OVS_REQUIRES(mutex);
139 static void slave_get_actor(struct slave *, struct lacp_info *actor)
141 static void slave_get_priority(struct slave *, struct lacp_info *priority)
143 static bool slave_may_tx(const struct slave *)
145 static struct slave *slave_lookup(const struct lacp *, const void *slave)
147 static bool info_tx_equal(struct lacp_info *, struct lacp_info *)
150 static unixctl_cb_func lacp_unixctl_show;
152 /* Populates 'pdu' with a LACP PDU comprised of 'actor' and 'partner'. */
154 compose_lacp_pdu(const struct lacp_info *actor,
155 const struct lacp_info *partner, struct lacp_pdu *pdu)
157 memset(pdu, 0, sizeof *pdu);
166 pdu->partner_type = 2;
167 pdu->partner_len = 20;
168 pdu->partner = *partner;
170 pdu->collector_type = 3;
171 pdu->collector_len = 16;
172 pdu->collector_delay = htons(0);
175 /* Parses 'b' which represents a packet containing a LACP PDU. This function
176 * returns NULL if 'b' is malformed, or does not represent a LACP PDU format
177 * supported by OVS. Otherwise, it returns a pointer to the lacp_pdu contained
179 static const struct lacp_pdu *
180 parse_lacp_packet(const struct ofpbuf *b)
182 const struct lacp_pdu *pdu;
184 pdu = ofpbuf_at(b, (uint8_t *)b->l3 - (uint8_t *)b->data, LACP_PDU_LEN);
186 if (pdu && pdu->subtype == 1
187 && pdu->actor_type == 1 && pdu->actor_len == 20
188 && pdu->partner_type == 2 && pdu->partner_len == 20) {
195 /* LACP Protocol Implementation. */
197 /* Initializes the lacp module. */
201 unixctl_command_register("lacp/show", "[port]", 0, 1,
202 lacp_unixctl_show, NULL);
205 /* Creates a LACP object. */
207 lacp_create(void) OVS_EXCLUDED(mutex)
209 static struct ovsthread_once once = OVSTHREAD_ONCE_INITIALIZER;
212 if (ovsthread_once_start(&once)) {
213 ovs_mutex_init_recursive(&mutex);
214 ovsthread_once_done(&once);
217 lacp = xzalloc(sizeof *lacp);
218 hmap_init(&lacp->slaves);
219 ovs_refcount_init(&lacp->ref_cnt);
221 ovs_mutex_lock(&mutex);
222 list_push_back(all_lacps, &lacp->node);
223 ovs_mutex_unlock(&mutex);
228 lacp_ref(const struct lacp *lacp_)
230 struct lacp *lacp = CONST_CAST(struct lacp *, lacp_);
232 ovs_refcount_ref(&lacp->ref_cnt);
237 /* Destroys 'lacp' and its slaves. Does nothing if 'lacp' is NULL. */
239 lacp_unref(struct lacp *lacp) OVS_EXCLUDED(mutex)
241 if (lacp && ovs_refcount_unref(&lacp->ref_cnt) == 1) {
242 struct slave *slave, *next;
244 ovs_mutex_lock(&mutex);
245 HMAP_FOR_EACH_SAFE (slave, next, node, &lacp->slaves) {
246 slave_destroy(slave);
249 hmap_destroy(&lacp->slaves);
250 list_remove(&lacp->node);
252 ovs_refcount_destroy(&lacp->ref_cnt);
254 ovs_mutex_unlock(&mutex);
258 /* Configures 'lacp' with settings from 's'. */
260 lacp_configure(struct lacp *lacp, const struct lacp_settings *s)
263 ovs_assert(!eth_addr_is_zero(s->id));
265 ovs_mutex_lock(&mutex);
266 if (!lacp->name || strcmp(s->name, lacp->name)) {
268 lacp->name = xstrdup(s->name);
271 if (!eth_addr_equals(lacp->sys_id, s->id)
272 || lacp->sys_priority != s->priority) {
273 memcpy(lacp->sys_id, s->id, ETH_ADDR_LEN);
274 lacp->sys_priority = s->priority;
278 lacp->active = s->active;
279 lacp->fast = s->fast;
281 if (lacp->fallback_ab != s->fallback_ab_cfg) {
282 lacp->fallback_ab = s->fallback_ab_cfg;
286 ovs_mutex_unlock(&mutex);
289 /* Returns true if 'lacp' is configured in active mode, false if 'lacp' is
290 * configured for passive mode. */
292 lacp_is_active(const struct lacp *lacp) OVS_EXCLUDED(mutex)
295 ovs_mutex_lock(&mutex);
297 ovs_mutex_unlock(&mutex);
301 /* Processes 'packet' which was received on 'slave_'. This function should be
302 * called on all packets received on 'slave_' with Ethernet Type ETH_TYPE_LACP.
305 lacp_process_packet(struct lacp *lacp, const void *slave_,
306 const struct ofpbuf *packet)
309 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
310 const struct lacp_pdu *pdu;
311 long long int tx_rate;
314 ovs_mutex_lock(&mutex);
315 slave = slave_lookup(lacp, slave_);
320 pdu = parse_lacp_packet(packet);
322 VLOG_WARN_RL(&rl, "%s: received an unparsable LACP PDU.", lacp->name);
326 slave->status = LACP_CURRENT;
327 tx_rate = lacp->fast ? LACP_FAST_TIME_TX : LACP_SLOW_TIME_TX;
328 timer_set_duration(&slave->rx, LACP_RX_MULTIPLIER * tx_rate);
330 slave->ntt_actor = pdu->partner;
332 /* Update our information about our partner if it's out of date. This may
333 * cause priorities to change so re-calculate attached status of all
335 if (memcmp(&slave->partner, &pdu->actor, sizeof pdu->actor)) {
337 slave->partner = pdu->actor;
341 ovs_mutex_unlock(&mutex);
344 /* Returns the lacp_status of the given 'lacp' object (which may be NULL). */
346 lacp_status(const struct lacp *lacp) OVS_EXCLUDED(mutex)
348 enum lacp_status ret;
350 ovs_mutex_lock(&mutex);
353 } else if (lacp->negotiated) {
354 ret = LACP_NEGOTIATED;
356 ret = LACP_CONFIGURED;
358 ovs_mutex_unlock(&mutex);
362 /* Registers 'slave_' as subordinate to 'lacp'. This should be called at least
363 * once per slave in a LACP managed bond. Should also be called whenever a
364 * slave's settings change. */
366 lacp_slave_register(struct lacp *lacp, void *slave_,
367 const struct lacp_slave_settings *s)
372 ovs_mutex_lock(&mutex);
373 slave = slave_lookup(lacp, slave_);
375 slave = xzalloc(sizeof *slave);
378 hmap_insert(&lacp->slaves, &slave->node, hash_pointer(slave_, 0));
379 slave_set_defaulted(slave);
381 if (!lacp->key_slave) {
382 lacp->key_slave = slave;
386 if (!slave->name || strcmp(s->name, slave->name)) {
388 slave->name = xstrdup(s->name);
391 if (slave->port_id != s->id
392 || slave->port_priority != s->priority
393 || slave->key != s->key) {
394 slave->port_id = s->id;
395 slave->port_priority = s->priority;
400 if (lacp->active || lacp->negotiated) {
401 slave_set_expired(slave);
404 ovs_mutex_unlock(&mutex);
407 /* Unregisters 'slave_' with 'lacp'. */
409 lacp_slave_unregister(struct lacp *lacp, const void *slave_)
414 ovs_mutex_lock(&mutex);
415 slave = slave_lookup(lacp, slave_);
417 slave_destroy(slave);
420 ovs_mutex_unlock(&mutex);
423 /* This function should be called whenever the carrier status of 'slave_' has
424 * changed. If 'lacp' is null, this function has no effect.*/
426 lacp_slave_carrier_changed(const struct lacp *lacp, const void *slave_)
434 ovs_mutex_lock(&mutex);
435 slave = slave_lookup(lacp, slave_);
440 if (slave->status == LACP_CURRENT || slave->lacp->active) {
441 slave_set_expired(slave);
445 ovs_mutex_unlock(&mutex);
449 slave_may_enable__(struct slave *slave) OVS_REQUIRES(mutex)
451 /* The slave may be enabled if it's attached to an aggregator and its
452 * partner is synchronized.*/
453 return slave->attached && (slave->partner.state & LACP_STATE_SYNC
454 || (slave->lacp && slave->lacp->fallback_ab
455 && slave->status == LACP_DEFAULTED));
458 /* This function should be called before enabling 'slave_' to send or receive
459 * traffic. If it returns false, 'slave_' should not enabled. As a
460 * convenience, returns true if 'lacp' is NULL. */
462 lacp_slave_may_enable(const struct lacp *lacp, const void *slave_)
469 ovs_mutex_lock(&mutex);
470 slave = slave_lookup(lacp, slave_);
471 ret = slave ? slave_may_enable__(slave) : false;
472 ovs_mutex_unlock(&mutex);
479 /* Returns true if partner information on 'slave_' is up to date. 'slave_'
480 * not being current, generally indicates a connectivity problem, or a
481 * misconfigured (or broken) partner. */
483 lacp_slave_is_current(const struct lacp *lacp, const void *slave_)
489 ovs_mutex_lock(&mutex);
490 slave = slave_lookup(lacp, slave_);
491 ret = slave ? slave->status != LACP_DEFAULTED : false;
492 ovs_mutex_unlock(&mutex);
496 /* This function should be called periodically to update 'lacp'. */
498 lacp_run(struct lacp *lacp, lacp_send_pdu *send_pdu) OVS_EXCLUDED(mutex)
502 ovs_mutex_lock(&mutex);
503 HMAP_FOR_EACH (slave, node, &lacp->slaves) {
504 if (timer_expired(&slave->rx)) {
505 enum slave_status old_status = slave->status;
507 if (slave->status == LACP_CURRENT) {
508 slave_set_expired(slave);
509 } else if (slave->status == LACP_EXPIRED) {
510 slave_set_defaulted(slave);
512 if (slave->status != old_status) {
513 seq_change(connectivity_seq_get());
519 lacp_update_attached(lacp);
522 HMAP_FOR_EACH (slave, node, &lacp->slaves) {
523 struct lacp_info actor;
525 if (!slave_may_tx(slave)) {
529 slave_get_actor(slave, &actor);
531 if (timer_expired(&slave->tx)
532 || !info_tx_equal(&actor, &slave->ntt_actor)) {
533 long long int duration;
536 slave->ntt_actor = actor;
537 compose_lacp_pdu(&actor, &slave->partner, &pdu);
538 send_pdu(slave->aux, &pdu, sizeof pdu);
540 duration = (slave->partner.state & LACP_STATE_TIME
542 : LACP_SLOW_TIME_TX);
544 timer_set_duration(&slave->tx, duration);
545 seq_change(connectivity_seq_get());
548 ovs_mutex_unlock(&mutex);
551 /* Causes poll_block() to wake up when lacp_run() needs to be called again. */
553 lacp_wait(struct lacp *lacp) OVS_EXCLUDED(mutex)
557 ovs_mutex_lock(&mutex);
558 HMAP_FOR_EACH (slave, node, &lacp->slaves) {
559 if (slave_may_tx(slave)) {
560 timer_wait(&slave->tx);
563 if (slave->status != LACP_DEFAULTED) {
564 timer_wait(&slave->rx);
567 ovs_mutex_unlock(&mutex);
570 /* Static Helpers. */
572 /* Updates the attached status of all slaves controlled by 'lacp' and sets its
573 * negotiated parameter to true if any slaves are attachable. */
575 lacp_update_attached(struct lacp *lacp) OVS_REQUIRES(mutex)
577 struct slave *lead, *slave;
578 struct lacp_info lead_pri;
579 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 10);
581 lacp->update = false;
584 HMAP_FOR_EACH (slave, node, &lacp->slaves) {
585 struct lacp_info pri;
587 slave->attached = false;
589 /* XXX: In the future allow users to configure the expected system ID.
590 * For now just special case loopback. */
591 if (eth_addr_equals(slave->partner.sys_id, slave->lacp->sys_id)) {
592 VLOG_WARN_RL(&rl, "slave %s: Loopback detected. Slave is "
593 "connected to its own bond", slave->name);
597 if (slave->status == LACP_DEFAULTED) {
598 if (lacp->fallback_ab) {
599 slave->attached = true;
604 slave->attached = true;
605 slave_get_priority(slave, &pri);
607 if (!lead || memcmp(&pri, &lead_pri, sizeof pri) < 0) {
613 lacp->negotiated = lead != NULL;
616 HMAP_FOR_EACH (slave, node, &lacp->slaves) {
617 if ((lacp->fallback_ab && slave->status == LACP_DEFAULTED)
618 || lead->partner.key != slave->partner.key
619 || !eth_addr_equals(lead->partner.sys_id,
620 slave->partner.sys_id)) {
621 slave->attached = false;
628 slave_destroy(struct slave *slave) OVS_REQUIRES(mutex)
631 struct lacp *lacp = slave->lacp;
634 hmap_remove(&lacp->slaves, &slave->node);
636 if (lacp->key_slave == slave) {
637 struct hmap_node *slave_node = hmap_first(&lacp->slaves);
640 lacp->key_slave = CONTAINER_OF(slave_node, struct slave, node);
642 lacp->key_slave = NULL;
652 slave_set_defaulted(struct slave *slave) OVS_REQUIRES(mutex)
654 memset(&slave->partner, 0, sizeof slave->partner);
656 slave->lacp->update = true;
657 slave->status = LACP_DEFAULTED;
661 slave_set_expired(struct slave *slave) OVS_REQUIRES(mutex)
663 slave->status = LACP_EXPIRED;
664 slave->partner.state |= LACP_STATE_TIME;
665 slave->partner.state &= ~LACP_STATE_SYNC;
667 timer_set_duration(&slave->rx, LACP_RX_MULTIPLIER * LACP_FAST_TIME_TX);
671 slave_get_actor(struct slave *slave, struct lacp_info *actor)
674 struct lacp *lacp = slave->lacp;
679 state |= LACP_STATE_ACT;
683 state |= LACP_STATE_TIME;
686 if (slave->attached) {
687 state |= LACP_STATE_SYNC;
690 if (slave->status == LACP_DEFAULTED) {
691 state |= LACP_STATE_DEF;
694 if (slave->status == LACP_EXPIRED) {
695 state |= LACP_STATE_EXP;
698 if (hmap_count(&lacp->slaves) > 1) {
699 state |= LACP_STATE_AGG;
702 if (slave->attached || !lacp->negotiated) {
703 state |= LACP_STATE_COL | LACP_STATE_DIST;
706 key = lacp->key_slave->key;
708 key = lacp->key_slave->port_id;
711 actor->state = state;
712 actor->key = htons(key);
713 actor->port_priority = htons(slave->port_priority);
714 actor->port_id = htons(slave->port_id);
715 actor->sys_priority = htons(lacp->sys_priority);
716 memcpy(&actor->sys_id, lacp->sys_id, ETH_ADDR_LEN);
719 /* Given 'slave', populates 'priority' with data representing its LACP link
720 * priority. If two priority objects populated by this function are compared
721 * using memcmp, the higher priority link will be less than the lower priority
724 slave_get_priority(struct slave *slave, struct lacp_info *priority)
727 uint16_t partner_priority, actor_priority;
729 /* Choose the lacp_info of the higher priority system by comparing their
730 * system priorities and mac addresses. */
731 actor_priority = slave->lacp->sys_priority;
732 partner_priority = ntohs(slave->partner.sys_priority);
733 if (actor_priority < partner_priority) {
734 slave_get_actor(slave, priority);
735 } else if (partner_priority < actor_priority) {
736 *priority = slave->partner;
737 } else if (eth_addr_compare_3way(slave->lacp->sys_id,
738 slave->partner.sys_id) < 0) {
739 slave_get_actor(slave, priority);
741 *priority = slave->partner;
744 /* Key and state are not used in priority comparisons. */
750 slave_may_tx(const struct slave *slave) OVS_REQUIRES(mutex)
752 return slave->lacp->active || slave->status != LACP_DEFAULTED;
755 static struct slave *
756 slave_lookup(const struct lacp *lacp, const void *slave_) OVS_REQUIRES(mutex)
760 HMAP_FOR_EACH_IN_BUCKET (slave, node, hash_pointer(slave_, 0),
762 if (slave->aux == slave_) {
770 /* Two lacp_info structures are tx_equal if and only if they do not differ in
771 * ways which would require a lacp_pdu transmission. */
773 info_tx_equal(struct lacp_info *a, struct lacp_info *b)
776 /* LACP specification dictates that we transmit whenever the actor and
777 * remote_actor differ in the following fields: Port, Port Priority,
778 * System, System Priority, Aggregation Key, Activity State, Timeout State,
779 * Sync State, and Aggregation State. The state flags are most likely to
780 * change so are checked first. */
781 return !((a->state ^ b->state) & (LACP_STATE_ACT
785 && a->port_id == b->port_id
786 && a->port_priority == b->port_priority
788 && a->sys_priority == b->sys_priority
789 && eth_addr_equals(a->sys_id, b->sys_id);
793 lacp_find(const char *name) OVS_REQUIRES(mutex)
797 LIST_FOR_EACH (lacp, node, all_lacps) {
798 if (!strcmp(lacp->name, name)) {
807 ds_put_lacp_state(struct ds *ds, uint8_t state)
809 if (state & LACP_STATE_ACT) {
810 ds_put_cstr(ds, " activity");
813 if (state & LACP_STATE_TIME) {
814 ds_put_cstr(ds, " timeout");
817 if (state & LACP_STATE_AGG) {
818 ds_put_cstr(ds, " aggregation");
821 if (state & LACP_STATE_SYNC) {
822 ds_put_cstr(ds, " synchronized");
825 if (state & LACP_STATE_COL) {
826 ds_put_cstr(ds, " collecting");
829 if (state & LACP_STATE_DIST) {
830 ds_put_cstr(ds, " distributing");
833 if (state & LACP_STATE_DEF) {
834 ds_put_cstr(ds, " defaulted");
837 if (state & LACP_STATE_EXP) {
838 ds_put_cstr(ds, " expired");
843 lacp_print_details(struct ds *ds, struct lacp *lacp) OVS_REQUIRES(mutex)
845 struct shash slave_shash = SHASH_INITIALIZER(&slave_shash);
846 const struct shash_node **sorted_slaves = NULL;
851 ds_put_format(ds, "---- %s ----\n", lacp->name);
852 ds_put_format(ds, "\tstatus: %s", lacp->active ? "active" : "passive");
853 if (lacp->negotiated) {
854 ds_put_cstr(ds, " negotiated");
856 ds_put_cstr(ds, "\n");
858 ds_put_format(ds, "\tsys_id: " ETH_ADDR_FMT "\n", ETH_ADDR_ARGS(lacp->sys_id));
859 ds_put_format(ds, "\tsys_priority: %u\n", lacp->sys_priority);
860 ds_put_cstr(ds, "\taggregation key: ");
861 if (lacp->key_slave) {
862 ds_put_format(ds, "%u", lacp->key_slave->key
863 ? lacp->key_slave->key
864 : lacp->key_slave->port_id);
866 ds_put_cstr(ds, "none");
868 ds_put_cstr(ds, "\n");
870 ds_put_cstr(ds, "\tlacp_time: ");
872 ds_put_cstr(ds, "fast\n");
874 ds_put_cstr(ds, "slow\n");
877 HMAP_FOR_EACH (slave, node, &lacp->slaves) {
878 shash_add(&slave_shash, slave->name, slave);
880 sorted_slaves = shash_sort(&slave_shash);
882 for (i = 0; i < shash_count(&slave_shash); i++) {
884 struct lacp_info actor;
886 slave = sorted_slaves[i]->data;
887 slave_get_actor(slave, &actor);
888 switch (slave->status) {
896 status = "defaulted";
902 ds_put_format(ds, "\nslave: %s: %s %s\n", slave->name, status,
903 slave->attached ? "attached" : "detached");
904 ds_put_format(ds, "\tport_id: %u\n", slave->port_id);
905 ds_put_format(ds, "\tport_priority: %u\n", slave->port_priority);
906 ds_put_format(ds, "\tmay_enable: %s\n", (slave_may_enable__(slave)
907 ? "true" : "false"));
909 ds_put_format(ds, "\n\tactor sys_id: " ETH_ADDR_FMT "\n",
910 ETH_ADDR_ARGS(actor.sys_id));
911 ds_put_format(ds, "\tactor sys_priority: %u\n",
912 ntohs(actor.sys_priority));
913 ds_put_format(ds, "\tactor port_id: %u\n",
914 ntohs(actor.port_id));
915 ds_put_format(ds, "\tactor port_priority: %u\n",
916 ntohs(actor.port_priority));
917 ds_put_format(ds, "\tactor key: %u\n",
919 ds_put_cstr(ds, "\tactor state:");
920 ds_put_lacp_state(ds, actor.state);
921 ds_put_cstr(ds, "\n\n");
923 ds_put_format(ds, "\tpartner sys_id: " ETH_ADDR_FMT "\n",
924 ETH_ADDR_ARGS(slave->partner.sys_id));
925 ds_put_format(ds, "\tpartner sys_priority: %u\n",
926 ntohs(slave->partner.sys_priority));
927 ds_put_format(ds, "\tpartner port_id: %u\n",
928 ntohs(slave->partner.port_id));
929 ds_put_format(ds, "\tpartner port_priority: %u\n",
930 ntohs(slave->partner.port_priority));
931 ds_put_format(ds, "\tpartner key: %u\n",
932 ntohs(slave->partner.key));
933 ds_put_cstr(ds, "\tpartner state:");
934 ds_put_lacp_state(ds, slave->partner.state);
935 ds_put_cstr(ds, "\n");
938 shash_destroy(&slave_shash);
943 lacp_unixctl_show(struct unixctl_conn *conn, int argc, const char *argv[],
944 void *aux OVS_UNUSED) OVS_EXCLUDED(mutex)
946 struct ds ds = DS_EMPTY_INITIALIZER;
949 ovs_mutex_lock(&mutex);
951 lacp = lacp_find(argv[1]);
953 unixctl_command_reply_error(conn, "no such lacp object");
956 lacp_print_details(&ds, lacp);
958 LIST_FOR_EACH (lacp, node, all_lacps) {
959 lacp_print_details(&ds, lacp);
963 unixctl_command_reply(conn, ds_cstr(&ds));
967 ovs_mutex_unlock(&mutex);