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 "dynamic-string.h"
26 #include "poll-loop.h"
33 VLOG_DEFINE_THIS_MODULE(lacp);
35 /* Masks for lacp_info state member. */
36 #define LACP_STATE_ACT 0x01 /* Activity. Active or passive? */
37 #define LACP_STATE_TIME 0x02 /* Timeout. Short or long timeout? */
38 #define LACP_STATE_AGG 0x04 /* Aggregation. Is the link is bondable? */
39 #define LACP_STATE_SYNC 0x08 /* Synchronization. Is the link in up to date? */
40 #define LACP_STATE_COL 0x10 /* Collecting. Is the link receiving frames? */
41 #define LACP_STATE_DIST 0x20 /* Distributing. Is the link sending frames? */
42 #define LACP_STATE_DEF 0x40 /* Defaulted. Using default partner info? */
43 #define LACP_STATE_EXP 0x80 /* Expired. Using expired partner info? */
45 #define LACP_FAST_TIME_TX 1000 /* Fast transmission rate. */
46 #define LACP_SLOW_TIME_TX 30000 /* Slow transmission rate. */
47 #define LACP_RX_MULTIPLIER 3 /* Multiply by TX rate to get RX rate. */
49 #define LACP_INFO_LEN 15
52 ovs_be16 sys_priority; /* System priority. */
53 uint8_t sys_id[ETH_ADDR_LEN]; /* System ID. */
54 ovs_be16 key; /* Operational key. */
55 ovs_be16 port_priority; /* Port priority. */
56 ovs_be16 port_id; /* Port ID. */
57 uint8_t state; /* State mask. See LACP_STATE macros. */
59 BUILD_ASSERT_DECL(LACP_INFO_LEN == sizeof(struct lacp_info));
61 #define LACP_PDU_LEN 110
64 uint8_t subtype; /* Always 1. */
65 uint8_t version; /* Always 1. */
67 uint8_t actor_type; /* Always 1. */
68 uint8_t actor_len; /* Always 20. */
69 struct lacp_info actor; /* LACP actor information. */
70 uint8_t z1[3]; /* Reserved. Always 0. */
72 uint8_t partner_type; /* Always 2. */
73 uint8_t partner_len; /* Always 20. */
74 struct lacp_info partner; /* LACP partner information. */
75 uint8_t z2[3]; /* Reserved. Always 0. */
77 uint8_t collector_type; /* Always 3. */
78 uint8_t collector_len; /* Always 16. */
79 ovs_be16 collector_delay; /* Maximum collector delay. Set to UINT16_MAX. */
80 uint8_t z3[64]; /* Combination of several fields. Always 0. */
82 BUILD_ASSERT_DECL(LACP_PDU_LEN == sizeof(struct lacp_pdu));
87 LACP_CURRENT, /* Current State. Partner up to date. */
88 LACP_EXPIRED, /* Expired State. Partner out of date. */
89 LACP_DEFAULTED, /* Defaulted State. No partner. */
93 struct list node; /* Node in all_lacps list. */
94 char *name; /* Name of this lacp object. */
95 uint8_t sys_id[ETH_ADDR_LEN]; /* System ID. */
96 uint16_t sys_priority; /* System Priority. */
97 bool active; /* Active or Passive. */
99 struct hmap slaves; /* Slaves this LACP object controls. */
100 struct slave *key_slave; /* Slave whose ID will be the aggregation key. */
102 bool fast; /* True if using fast probe interval. */
103 bool negotiated; /* True if LACP negotiations were successful. */
104 bool update; /* True if lacp_update() needs to be called. */
110 void *aux; /* Handle used to identify this slave. */
111 struct hmap_node node; /* Node in master's slaves map. */
113 struct lacp *lacp; /* LACP object containing this slave. */
114 uint16_t port_id; /* Port ID. */
115 uint16_t port_priority; /* Port Priority. */
116 uint16_t key; /* Aggregation Key. 0 if default. */
117 char *name; /* Name of this slave. */
119 enum slave_status status; /* Slave status. */
120 bool attached; /* Attached. Traffic may flow. */
121 struct lacp_info partner; /* Partner information. */
122 struct lacp_info ntt_actor; /* Used to decide if we Need To Transmit. */
123 struct timer tx; /* Next message transmission timer. */
124 struct timer rx; /* Expected message receive timer. */
127 static struct ovs_mutex mutex;
128 static struct list all_lacps__ = LIST_INITIALIZER(&all_lacps__);
129 static struct list *const all_lacps OVS_GUARDED_BY(mutex) = &all_lacps__;
131 static void lacp_update_attached(struct lacp *) OVS_REQUIRES(mutex);
133 static void slave_destroy(struct slave *) OVS_REQUIRES(mutex);
134 static void slave_set_defaulted(struct slave *) OVS_REQUIRES(mutex);
135 static void slave_set_expired(struct slave *) OVS_REQUIRES(mutex);
136 static void slave_get_actor(struct slave *, struct lacp_info *actor)
138 static void slave_get_priority(struct slave *, struct lacp_info *priority)
140 static bool slave_may_tx(const struct slave *)
142 static struct slave *slave_lookup(const struct lacp *, const void *slave)
144 static bool info_tx_equal(struct lacp_info *, struct lacp_info *)
147 static unixctl_cb_func lacp_unixctl_show;
149 /* Populates 'pdu' with a LACP PDU comprised of 'actor' and 'partner'. */
151 compose_lacp_pdu(const struct lacp_info *actor,
152 const struct lacp_info *partner, struct lacp_pdu *pdu)
154 memset(pdu, 0, sizeof *pdu);
163 pdu->partner_type = 2;
164 pdu->partner_len = 20;
165 pdu->partner = *partner;
167 pdu->collector_type = 3;
168 pdu->collector_len = 16;
169 pdu->collector_delay = htons(0);
172 /* Parses 'b' which represents a packet containing a LACP PDU. This function
173 * returns NULL if 'b' is malformed, or does not represent a LACP PDU format
174 * supported by OVS. Otherwise, it returns a pointer to the lacp_pdu contained
176 static const struct lacp_pdu *
177 parse_lacp_packet(const struct ofpbuf *b)
179 const struct lacp_pdu *pdu;
181 pdu = ofpbuf_at(b, (uint8_t *)b->l3 - (uint8_t *)b->data, LACP_PDU_LEN);
183 if (pdu && pdu->subtype == 1
184 && pdu->actor_type == 1 && pdu->actor_len == 20
185 && pdu->partner_type == 2 && pdu->partner_len == 20) {
192 /* LACP Protocol Implementation. */
194 /* Initializes the lacp module. */
198 unixctl_command_register("lacp/show", "[port]", 0, 1,
199 lacp_unixctl_show, NULL);
202 /* Creates a LACP object. */
204 lacp_create(void) OVS_EXCLUDED(mutex)
206 static struct ovsthread_once once = OVSTHREAD_ONCE_INITIALIZER;
209 if (ovsthread_once_start(&once)) {
210 ovs_mutex_init_recursive(&mutex);
211 ovsthread_once_done(&once);
214 lacp = xzalloc(sizeof *lacp);
215 hmap_init(&lacp->slaves);
216 atomic_init(&lacp->ref_cnt, 1);
218 ovs_mutex_lock(&mutex);
219 list_push_back(all_lacps, &lacp->node);
220 ovs_mutex_unlock(&mutex);
225 lacp_ref(const struct lacp *lacp_)
227 struct lacp *lacp = CONST_CAST(struct lacp *, lacp_);
230 atomic_add(&lacp->ref_cnt, 1, &orig);
231 ovs_assert(orig > 0);
236 /* Destroys 'lacp' and its slaves. Does nothing if 'lacp' is NULL. */
238 lacp_unref(struct lacp *lacp) OVS_EXCLUDED(mutex)
246 atomic_sub(&lacp->ref_cnt, 1, &orig);
247 ovs_assert(orig > 0);
249 struct slave *slave, *next;
251 ovs_mutex_lock(&mutex);
252 HMAP_FOR_EACH_SAFE (slave, next, node, &lacp->slaves) {
253 slave_destroy(slave);
256 hmap_destroy(&lacp->slaves);
257 list_remove(&lacp->node);
260 ovs_mutex_unlock(&mutex);
264 /* Configures 'lacp' with settings from 's'. */
266 lacp_configure(struct lacp *lacp, const struct lacp_settings *s)
269 ovs_assert(!eth_addr_is_zero(s->id));
271 ovs_mutex_lock(&mutex);
272 if (!lacp->name || strcmp(s->name, lacp->name)) {
274 lacp->name = xstrdup(s->name);
277 if (!eth_addr_equals(lacp->sys_id, s->id)
278 || lacp->sys_priority != s->priority) {
279 memcpy(lacp->sys_id, s->id, ETH_ADDR_LEN);
280 lacp->sys_priority = s->priority;
284 lacp->active = s->active;
285 lacp->fast = s->fast;
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);
456 /* This function should be called before enabling 'slave_' to send or receive
457 * traffic. If it returns false, 'slave_' should not enabled. As a
458 * convenience, returns true if 'lacp' is NULL. */
460 lacp_slave_may_enable(const struct lacp *lacp, const void *slave_)
467 ovs_mutex_lock(&mutex);
468 slave = slave_lookup(lacp, slave_);
469 ret = slave ? slave_may_enable__(slave) : false;
470 ovs_mutex_unlock(&mutex);
477 /* Returns true if partner information on 'slave_' is up to date. 'slave_'
478 * not being current, generally indicates a connectivity problem, or a
479 * misconfigured (or broken) partner. */
481 lacp_slave_is_current(const struct lacp *lacp, const void *slave_)
487 ovs_mutex_lock(&mutex);
488 slave = slave_lookup(lacp, slave_);
489 ret = slave ? slave->status != LACP_DEFAULTED : false;
490 ovs_mutex_unlock(&mutex);
494 /* This function should be called periodically to update 'lacp'. */
496 lacp_run(struct lacp *lacp, lacp_send_pdu *send_pdu) OVS_EXCLUDED(mutex)
500 ovs_mutex_lock(&mutex);
501 HMAP_FOR_EACH (slave, node, &lacp->slaves) {
502 if (timer_expired(&slave->rx)) {
503 if (slave->status == LACP_CURRENT) {
504 slave_set_expired(slave);
505 } else if (slave->status == LACP_EXPIRED) {
506 slave_set_defaulted(slave);
512 lacp_update_attached(lacp);
515 HMAP_FOR_EACH (slave, node, &lacp->slaves) {
516 struct lacp_info actor;
518 if (!slave_may_tx(slave)) {
522 slave_get_actor(slave, &actor);
524 if (timer_expired(&slave->tx)
525 || !info_tx_equal(&actor, &slave->ntt_actor)) {
526 long long int duration;
529 slave->ntt_actor = actor;
530 compose_lacp_pdu(&actor, &slave->partner, &pdu);
531 send_pdu(slave->aux, &pdu, sizeof pdu);
533 duration = (slave->partner.state & LACP_STATE_TIME
535 : LACP_SLOW_TIME_TX);
537 timer_set_duration(&slave->tx, duration);
540 ovs_mutex_unlock(&mutex);
543 /* Causes poll_block() to wake up when lacp_run() needs to be called again. */
545 lacp_wait(struct lacp *lacp) OVS_EXCLUDED(mutex)
549 ovs_mutex_lock(&mutex);
550 HMAP_FOR_EACH (slave, node, &lacp->slaves) {
551 if (slave_may_tx(slave)) {
552 timer_wait(&slave->tx);
555 if (slave->status != LACP_DEFAULTED) {
556 timer_wait(&slave->rx);
559 ovs_mutex_unlock(&mutex);
562 /* Static Helpers. */
564 /* Updates the attached status of all slaves controlled by 'lacp' and sets its
565 * negotiated parameter to true if any slaves are attachable. */
567 lacp_update_attached(struct lacp *lacp) OVS_REQUIRES(mutex)
569 struct slave *lead, *slave;
570 struct lacp_info lead_pri;
571 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 10);
573 lacp->update = false;
576 HMAP_FOR_EACH (slave, node, &lacp->slaves) {
577 struct lacp_info pri;
579 slave->attached = false;
581 /* XXX: In the future allow users to configure the expected system ID.
582 * For now just special case loopback. */
583 if (eth_addr_equals(slave->partner.sys_id, slave->lacp->sys_id)) {
584 VLOG_WARN_RL(&rl, "slave %s: Loopback detected. Slave is "
585 "connected to its own bond", slave->name);
589 if (slave->status == LACP_DEFAULTED) {
593 slave->attached = true;
594 slave_get_priority(slave, &pri);
596 if (!lead || memcmp(&pri, &lead_pri, sizeof pri) < 0) {
602 lacp->negotiated = lead != NULL;
605 HMAP_FOR_EACH (slave, node, &lacp->slaves) {
606 if (lead->partner.key != slave->partner.key
607 || !eth_addr_equals(lead->partner.sys_id,
608 slave->partner.sys_id)) {
609 slave->attached = false;
616 slave_destroy(struct slave *slave) OVS_REQUIRES(mutex)
619 struct lacp *lacp = slave->lacp;
622 hmap_remove(&lacp->slaves, &slave->node);
624 if (lacp->key_slave == slave) {
625 struct hmap_node *slave_node = hmap_first(&lacp->slaves);
628 lacp->key_slave = CONTAINER_OF(slave_node, struct slave, node);
630 lacp->key_slave = NULL;
640 slave_set_defaulted(struct slave *slave) OVS_REQUIRES(mutex)
642 memset(&slave->partner, 0, sizeof slave->partner);
644 slave->lacp->update = true;
645 slave->status = LACP_DEFAULTED;
649 slave_set_expired(struct slave *slave) OVS_REQUIRES(mutex)
651 slave->status = LACP_EXPIRED;
652 slave->partner.state |= LACP_STATE_TIME;
653 slave->partner.state &= ~LACP_STATE_SYNC;
655 timer_set_duration(&slave->rx, LACP_RX_MULTIPLIER * LACP_FAST_TIME_TX);
659 slave_get_actor(struct slave *slave, struct lacp_info *actor)
662 struct lacp *lacp = slave->lacp;
667 state |= LACP_STATE_ACT;
671 state |= LACP_STATE_TIME;
674 if (slave->attached) {
675 state |= LACP_STATE_SYNC;
678 if (slave->status == LACP_DEFAULTED) {
679 state |= LACP_STATE_DEF;
682 if (slave->status == LACP_EXPIRED) {
683 state |= LACP_STATE_EXP;
686 if (hmap_count(&lacp->slaves) > 1) {
687 state |= LACP_STATE_AGG;
690 if (slave->attached || !lacp->negotiated) {
691 state |= LACP_STATE_COL | LACP_STATE_DIST;
694 key = lacp->key_slave->key;
696 key = lacp->key_slave->port_id;
699 actor->state = state;
700 actor->key = htons(key);
701 actor->port_priority = htons(slave->port_priority);
702 actor->port_id = htons(slave->port_id);
703 actor->sys_priority = htons(lacp->sys_priority);
704 memcpy(&actor->sys_id, lacp->sys_id, ETH_ADDR_LEN);
707 /* Given 'slave', populates 'priority' with data representing its LACP link
708 * priority. If two priority objects populated by this function are compared
709 * using memcmp, the higher priority link will be less than the lower priority
712 slave_get_priority(struct slave *slave, struct lacp_info *priority)
715 uint16_t partner_priority, actor_priority;
717 /* Choose the lacp_info of the higher priority system by comparing their
718 * system priorities and mac addresses. */
719 actor_priority = slave->lacp->sys_priority;
720 partner_priority = ntohs(slave->partner.sys_priority);
721 if (actor_priority < partner_priority) {
722 slave_get_actor(slave, priority);
723 } else if (partner_priority < actor_priority) {
724 *priority = slave->partner;
725 } else if (eth_addr_compare_3way(slave->lacp->sys_id,
726 slave->partner.sys_id) < 0) {
727 slave_get_actor(slave, priority);
729 *priority = slave->partner;
732 /* Key and state are not used in priority comparisons. */
738 slave_may_tx(const struct slave *slave) OVS_REQUIRES(mutex)
740 return slave->lacp->active || slave->status != LACP_DEFAULTED;
743 static struct slave *
744 slave_lookup(const struct lacp *lacp, const void *slave_) OVS_REQUIRES(mutex)
748 HMAP_FOR_EACH_IN_BUCKET (slave, node, hash_pointer(slave_, 0),
750 if (slave->aux == slave_) {
758 /* Two lacp_info structures are tx_equal if and only if they do not differ in
759 * ways which would require a lacp_pdu transmission. */
761 info_tx_equal(struct lacp_info *a, struct lacp_info *b)
764 /* LACP specification dictates that we transmit whenever the actor and
765 * remote_actor differ in the following fields: Port, Port Priority,
766 * System, System Priority, Aggregation Key, Activity State, Timeout State,
767 * Sync State, and Aggregation State. The state flags are most likely to
768 * change so are checked first. */
769 return !((a->state ^ b->state) & (LACP_STATE_ACT
773 && a->port_id == b->port_id
774 && a->port_priority == b->port_priority
776 && a->sys_priority == b->sys_priority
777 && eth_addr_equals(a->sys_id, b->sys_id);
781 lacp_find(const char *name) OVS_REQUIRES(mutex)
785 LIST_FOR_EACH (lacp, node, all_lacps) {
786 if (!strcmp(lacp->name, name)) {
795 ds_put_lacp_state(struct ds *ds, uint8_t state)
797 if (state & LACP_STATE_ACT) {
798 ds_put_cstr(ds, " activity");
801 if (state & LACP_STATE_TIME) {
802 ds_put_cstr(ds, " timeout");
805 if (state & LACP_STATE_AGG) {
806 ds_put_cstr(ds, " aggregation");
809 if (state & LACP_STATE_SYNC) {
810 ds_put_cstr(ds, " synchronized");
813 if (state & LACP_STATE_COL) {
814 ds_put_cstr(ds, " collecting");
817 if (state & LACP_STATE_DIST) {
818 ds_put_cstr(ds, " distributing");
821 if (state & LACP_STATE_DEF) {
822 ds_put_cstr(ds, " defaulted");
825 if (state & LACP_STATE_EXP) {
826 ds_put_cstr(ds, " expired");
831 lacp_print_details(struct ds *ds, struct lacp *lacp) OVS_REQUIRES(mutex)
833 struct shash slave_shash = SHASH_INITIALIZER(&slave_shash);
834 const struct shash_node **sorted_slaves = NULL;
839 ds_put_format(ds, "---- %s ----\n", lacp->name);
840 ds_put_format(ds, "\tstatus: %s", lacp->active ? "active" : "passive");
841 if (lacp->negotiated) {
842 ds_put_cstr(ds, " negotiated");
844 ds_put_cstr(ds, "\n");
846 ds_put_format(ds, "\tsys_id: " ETH_ADDR_FMT "\n", ETH_ADDR_ARGS(lacp->sys_id));
847 ds_put_format(ds, "\tsys_priority: %u\n", lacp->sys_priority);
848 ds_put_cstr(ds, "\taggregation key: ");
849 if (lacp->key_slave) {
850 ds_put_format(ds, "%u", lacp->key_slave->key
851 ? lacp->key_slave->key
852 : lacp->key_slave->port_id);
854 ds_put_cstr(ds, "none");
856 ds_put_cstr(ds, "\n");
858 ds_put_cstr(ds, "\tlacp_time: ");
860 ds_put_cstr(ds, "fast\n");
862 ds_put_cstr(ds, "slow\n");
865 HMAP_FOR_EACH (slave, node, &lacp->slaves) {
866 shash_add(&slave_shash, slave->name, slave);
868 sorted_slaves = shash_sort(&slave_shash);
870 for (i = 0; i < shash_count(&slave_shash); i++) {
872 struct lacp_info actor;
874 slave = sorted_slaves[i]->data;
875 slave_get_actor(slave, &actor);
876 switch (slave->status) {
884 status = "defaulted";
890 ds_put_format(ds, "\nslave: %s: %s %s\n", slave->name, status,
891 slave->attached ? "attached" : "detached");
892 ds_put_format(ds, "\tport_id: %u\n", slave->port_id);
893 ds_put_format(ds, "\tport_priority: %u\n", slave->port_priority);
894 ds_put_format(ds, "\tmay_enable: %s\n", (slave_may_enable__(slave)
895 ? "true" : "false"));
897 ds_put_format(ds, "\n\tactor sys_id: " ETH_ADDR_FMT "\n",
898 ETH_ADDR_ARGS(actor.sys_id));
899 ds_put_format(ds, "\tactor sys_priority: %u\n",
900 ntohs(actor.sys_priority));
901 ds_put_format(ds, "\tactor port_id: %u\n",
902 ntohs(actor.port_id));
903 ds_put_format(ds, "\tactor port_priority: %u\n",
904 ntohs(actor.port_priority));
905 ds_put_format(ds, "\tactor key: %u\n",
907 ds_put_cstr(ds, "\tactor state:");
908 ds_put_lacp_state(ds, actor.state);
909 ds_put_cstr(ds, "\n\n");
911 ds_put_format(ds, "\tpartner sys_id: " ETH_ADDR_FMT "\n",
912 ETH_ADDR_ARGS(slave->partner.sys_id));
913 ds_put_format(ds, "\tpartner sys_priority: %u\n",
914 ntohs(slave->partner.sys_priority));
915 ds_put_format(ds, "\tpartner port_id: %u\n",
916 ntohs(slave->partner.port_id));
917 ds_put_format(ds, "\tpartner port_priority: %u\n",
918 ntohs(slave->partner.port_priority));
919 ds_put_format(ds, "\tpartner key: %u\n",
920 ntohs(slave->partner.key));
921 ds_put_cstr(ds, "\tpartner state:");
922 ds_put_lacp_state(ds, slave->partner.state);
923 ds_put_cstr(ds, "\n");
926 shash_destroy(&slave_shash);
931 lacp_unixctl_show(struct unixctl_conn *conn, int argc, const char *argv[],
932 void *aux OVS_UNUSED) OVS_EXCLUDED(mutex)
934 struct ds ds = DS_EMPTY_INITIALIZER;
937 ovs_mutex_lock(&mutex);
939 lacp = lacp_find(argv[1]);
941 unixctl_command_reply_error(conn, "no such lacp object");
944 lacp_print_details(&ds, lacp);
946 LIST_FOR_EACH (lacp, node, all_lacps) {
947 lacp_print_details(&ds, lacp);
951 unixctl_command_reply(conn, ds_cstr(&ds));
955 ovs_mutex_unlock(&mutex);