1 /* Copyright (c) 2011, 2012, 2013, 2014 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);
253 ovs_mutex_unlock(&mutex);
257 /* Configures 'lacp' with settings from 's'. */
259 lacp_configure(struct lacp *lacp, const struct lacp_settings *s)
262 ovs_assert(!eth_addr_is_zero(s->id));
264 ovs_mutex_lock(&mutex);
265 if (!lacp->name || strcmp(s->name, lacp->name)) {
267 lacp->name = xstrdup(s->name);
270 if (!eth_addr_equals(lacp->sys_id, s->id)
271 || lacp->sys_priority != s->priority) {
272 memcpy(lacp->sys_id, s->id, ETH_ADDR_LEN);
273 lacp->sys_priority = s->priority;
277 lacp->active = s->active;
278 lacp->fast = s->fast;
280 if (lacp->fallback_ab != s->fallback_ab_cfg) {
281 lacp->fallback_ab = s->fallback_ab_cfg;
285 ovs_mutex_unlock(&mutex);
288 /* Returns true if 'lacp' is configured in active mode, false if 'lacp' is
289 * configured for passive mode. */
291 lacp_is_active(const struct lacp *lacp) OVS_EXCLUDED(mutex)
294 ovs_mutex_lock(&mutex);
296 ovs_mutex_unlock(&mutex);
300 /* Processes 'packet' which was received on 'slave_'. This function should be
301 * called on all packets received on 'slave_' with Ethernet Type ETH_TYPE_LACP.
304 lacp_process_packet(struct lacp *lacp, const void *slave_,
305 const struct ofpbuf *packet)
308 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
309 const struct lacp_pdu *pdu;
310 long long int tx_rate;
313 ovs_mutex_lock(&mutex);
314 slave = slave_lookup(lacp, slave_);
319 pdu = parse_lacp_packet(packet);
321 VLOG_WARN_RL(&rl, "%s: received an unparsable LACP PDU.", lacp->name);
325 slave->status = LACP_CURRENT;
326 tx_rate = lacp->fast ? LACP_FAST_TIME_TX : LACP_SLOW_TIME_TX;
327 timer_set_duration(&slave->rx, LACP_RX_MULTIPLIER * tx_rate);
329 slave->ntt_actor = pdu->partner;
331 /* Update our information about our partner if it's out of date. This may
332 * cause priorities to change so re-calculate attached status of all
334 if (memcmp(&slave->partner, &pdu->actor, sizeof pdu->actor)) {
336 slave->partner = pdu->actor;
340 ovs_mutex_unlock(&mutex);
343 /* Returns the lacp_status of the given 'lacp' object (which may be NULL). */
345 lacp_status(const struct lacp *lacp) OVS_EXCLUDED(mutex)
347 enum lacp_status ret;
349 ovs_mutex_lock(&mutex);
352 } else if (lacp->negotiated) {
353 ret = LACP_NEGOTIATED;
355 ret = LACP_CONFIGURED;
357 ovs_mutex_unlock(&mutex);
361 /* Registers 'slave_' as subordinate to 'lacp'. This should be called at least
362 * once per slave in a LACP managed bond. Should also be called whenever a
363 * slave's settings change. */
365 lacp_slave_register(struct lacp *lacp, void *slave_,
366 const struct lacp_slave_settings *s)
371 ovs_mutex_lock(&mutex);
372 slave = slave_lookup(lacp, slave_);
374 slave = xzalloc(sizeof *slave);
377 hmap_insert(&lacp->slaves, &slave->node, hash_pointer(slave_, 0));
378 slave_set_defaulted(slave);
380 if (!lacp->key_slave) {
381 lacp->key_slave = slave;
385 if (!slave->name || strcmp(s->name, slave->name)) {
387 slave->name = xstrdup(s->name);
390 if (slave->port_id != s->id
391 || slave->port_priority != s->priority
392 || slave->key != s->key) {
393 slave->port_id = s->id;
394 slave->port_priority = s->priority;
399 if (lacp->active || lacp->negotiated) {
400 slave_set_expired(slave);
403 ovs_mutex_unlock(&mutex);
406 /* Unregisters 'slave_' with 'lacp'. */
408 lacp_slave_unregister(struct lacp *lacp, const void *slave_)
413 ovs_mutex_lock(&mutex);
414 slave = slave_lookup(lacp, slave_);
416 slave_destroy(slave);
419 ovs_mutex_unlock(&mutex);
422 /* This function should be called whenever the carrier status of 'slave_' has
423 * changed. If 'lacp' is null, this function has no effect.*/
425 lacp_slave_carrier_changed(const struct lacp *lacp, const void *slave_)
433 ovs_mutex_lock(&mutex);
434 slave = slave_lookup(lacp, slave_);
439 if (slave->status == LACP_CURRENT || slave->lacp->active) {
440 slave_set_expired(slave);
444 ovs_mutex_unlock(&mutex);
448 slave_may_enable__(struct slave *slave) OVS_REQUIRES(mutex)
450 /* The slave may be enabled if it's attached to an aggregator and its
451 * partner is synchronized.*/
452 return slave->attached && (slave->partner.state & LACP_STATE_SYNC
453 || (slave->lacp && slave->lacp->fallback_ab
454 && slave->status == LACP_DEFAULTED));
457 /* This function should be called before enabling 'slave_' to send or receive
458 * traffic. If it returns false, 'slave_' should not enabled. As a
459 * convenience, returns true if 'lacp' is NULL. */
461 lacp_slave_may_enable(const struct lacp *lacp, const void *slave_)
468 ovs_mutex_lock(&mutex);
469 slave = slave_lookup(lacp, slave_);
470 ret = slave ? slave_may_enable__(slave) : false;
471 ovs_mutex_unlock(&mutex);
478 /* Returns true if partner information on 'slave_' is up to date. 'slave_'
479 * not being current, generally indicates a connectivity problem, or a
480 * misconfigured (or broken) partner. */
482 lacp_slave_is_current(const struct lacp *lacp, const void *slave_)
488 ovs_mutex_lock(&mutex);
489 slave = slave_lookup(lacp, slave_);
490 ret = slave ? slave->status != LACP_DEFAULTED : false;
491 ovs_mutex_unlock(&mutex);
495 /* This function should be called periodically to update 'lacp'. */
497 lacp_run(struct lacp *lacp, lacp_send_pdu *send_pdu) OVS_EXCLUDED(mutex)
501 ovs_mutex_lock(&mutex);
502 HMAP_FOR_EACH (slave, node, &lacp->slaves) {
503 if (timer_expired(&slave->rx)) {
504 enum slave_status old_status = slave->status;
506 if (slave->status == LACP_CURRENT) {
507 slave_set_expired(slave);
508 } else if (slave->status == LACP_EXPIRED) {
509 slave_set_defaulted(slave);
511 if (slave->status != old_status) {
512 seq_change(connectivity_seq_get());
518 lacp_update_attached(lacp);
521 HMAP_FOR_EACH (slave, node, &lacp->slaves) {
522 struct lacp_info actor;
524 if (!slave_may_tx(slave)) {
528 slave_get_actor(slave, &actor);
530 if (timer_expired(&slave->tx)
531 || !info_tx_equal(&actor, &slave->ntt_actor)) {
532 long long int duration;
535 slave->ntt_actor = actor;
536 compose_lacp_pdu(&actor, &slave->partner, &pdu);
537 send_pdu(slave->aux, &pdu, sizeof pdu);
539 duration = (slave->partner.state & LACP_STATE_TIME
541 : LACP_SLOW_TIME_TX);
543 timer_set_duration(&slave->tx, duration);
544 seq_change(connectivity_seq_get());
547 ovs_mutex_unlock(&mutex);
550 /* Causes poll_block() to wake up when lacp_run() needs to be called again. */
552 lacp_wait(struct lacp *lacp) OVS_EXCLUDED(mutex)
556 ovs_mutex_lock(&mutex);
557 HMAP_FOR_EACH (slave, node, &lacp->slaves) {
558 if (slave_may_tx(slave)) {
559 timer_wait(&slave->tx);
562 if (slave->status != LACP_DEFAULTED) {
563 timer_wait(&slave->rx);
566 ovs_mutex_unlock(&mutex);
569 /* Static Helpers. */
571 /* Updates the attached status of all slaves controlled by 'lacp' and sets its
572 * negotiated parameter to true if any slaves are attachable. */
574 lacp_update_attached(struct lacp *lacp) OVS_REQUIRES(mutex)
576 struct slave *lead, *slave;
577 struct lacp_info lead_pri;
578 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 10);
580 lacp->update = false;
583 HMAP_FOR_EACH (slave, node, &lacp->slaves) {
584 struct lacp_info pri;
586 slave->attached = false;
588 /* XXX: In the future allow users to configure the expected system ID.
589 * For now just special case loopback. */
590 if (eth_addr_equals(slave->partner.sys_id, slave->lacp->sys_id)) {
591 VLOG_WARN_RL(&rl, "slave %s: Loopback detected. Slave is "
592 "connected to its own bond", slave->name);
596 if (slave->status == LACP_DEFAULTED) {
597 if (lacp->fallback_ab) {
598 slave->attached = true;
603 slave->attached = true;
604 slave_get_priority(slave, &pri);
606 if (!lead || memcmp(&pri, &lead_pri, sizeof pri) < 0) {
612 lacp->negotiated = lead != NULL;
615 HMAP_FOR_EACH (slave, node, &lacp->slaves) {
616 if ((lacp->fallback_ab && slave->status == LACP_DEFAULTED)
617 || lead->partner.key != slave->partner.key
618 || !eth_addr_equals(lead->partner.sys_id,
619 slave->partner.sys_id)) {
620 slave->attached = false;
627 slave_destroy(struct slave *slave) OVS_REQUIRES(mutex)
630 struct lacp *lacp = slave->lacp;
633 hmap_remove(&lacp->slaves, &slave->node);
635 if (lacp->key_slave == slave) {
636 struct hmap_node *slave_node = hmap_first(&lacp->slaves);
639 lacp->key_slave = CONTAINER_OF(slave_node, struct slave, node);
641 lacp->key_slave = NULL;
651 slave_set_defaulted(struct slave *slave) OVS_REQUIRES(mutex)
653 memset(&slave->partner, 0, sizeof slave->partner);
655 slave->lacp->update = true;
656 slave->status = LACP_DEFAULTED;
660 slave_set_expired(struct slave *slave) OVS_REQUIRES(mutex)
662 slave->status = LACP_EXPIRED;
663 slave->partner.state |= LACP_STATE_TIME;
664 slave->partner.state &= ~LACP_STATE_SYNC;
666 timer_set_duration(&slave->rx, LACP_RX_MULTIPLIER * LACP_FAST_TIME_TX);
670 slave_get_actor(struct slave *slave, struct lacp_info *actor)
673 struct lacp *lacp = slave->lacp;
678 state |= LACP_STATE_ACT;
682 state |= LACP_STATE_TIME;
685 if (slave->attached) {
686 state |= LACP_STATE_SYNC;
689 if (slave->status == LACP_DEFAULTED) {
690 state |= LACP_STATE_DEF;
693 if (slave->status == LACP_EXPIRED) {
694 state |= LACP_STATE_EXP;
697 if (hmap_count(&lacp->slaves) > 1) {
698 state |= LACP_STATE_AGG;
701 if (slave->attached || !lacp->negotiated) {
702 state |= LACP_STATE_COL | LACP_STATE_DIST;
705 key = lacp->key_slave->key;
707 key = lacp->key_slave->port_id;
710 actor->state = state;
711 actor->key = htons(key);
712 actor->port_priority = htons(slave->port_priority);
713 actor->port_id = htons(slave->port_id);
714 actor->sys_priority = htons(lacp->sys_priority);
715 memcpy(&actor->sys_id, lacp->sys_id, ETH_ADDR_LEN);
718 /* Given 'slave', populates 'priority' with data representing its LACP link
719 * priority. If two priority objects populated by this function are compared
720 * using memcmp, the higher priority link will be less than the lower priority
723 slave_get_priority(struct slave *slave, struct lacp_info *priority)
726 uint16_t partner_priority, actor_priority;
728 /* Choose the lacp_info of the higher priority system by comparing their
729 * system priorities and mac addresses. */
730 actor_priority = slave->lacp->sys_priority;
731 partner_priority = ntohs(slave->partner.sys_priority);
732 if (actor_priority < partner_priority) {
733 slave_get_actor(slave, priority);
734 } else if (partner_priority < actor_priority) {
735 *priority = slave->partner;
736 } else if (eth_addr_compare_3way(slave->lacp->sys_id,
737 slave->partner.sys_id) < 0) {
738 slave_get_actor(slave, priority);
740 *priority = slave->partner;
743 /* Key and state are not used in priority comparisons. */
749 slave_may_tx(const struct slave *slave) OVS_REQUIRES(mutex)
751 return slave->lacp->active || slave->status != LACP_DEFAULTED;
754 static struct slave *
755 slave_lookup(const struct lacp *lacp, const void *slave_) OVS_REQUIRES(mutex)
759 HMAP_FOR_EACH_IN_BUCKET (slave, node, hash_pointer(slave_, 0),
761 if (slave->aux == slave_) {
769 /* Two lacp_info structures are tx_equal if and only if they do not differ in
770 * ways which would require a lacp_pdu transmission. */
772 info_tx_equal(struct lacp_info *a, struct lacp_info *b)
775 /* LACP specification dictates that we transmit whenever the actor and
776 * remote_actor differ in the following fields: Port, Port Priority,
777 * System, System Priority, Aggregation Key, Activity State, Timeout State,
778 * Sync State, and Aggregation State. The state flags are most likely to
779 * change so are checked first. */
780 return !((a->state ^ b->state) & (LACP_STATE_ACT
784 && a->port_id == b->port_id
785 && a->port_priority == b->port_priority
787 && a->sys_priority == b->sys_priority
788 && eth_addr_equals(a->sys_id, b->sys_id);
792 lacp_find(const char *name) OVS_REQUIRES(mutex)
796 LIST_FOR_EACH (lacp, node, all_lacps) {
797 if (!strcmp(lacp->name, name)) {
806 ds_put_lacp_state(struct ds *ds, uint8_t state)
808 if (state & LACP_STATE_ACT) {
809 ds_put_cstr(ds, " activity");
812 if (state & LACP_STATE_TIME) {
813 ds_put_cstr(ds, " timeout");
816 if (state & LACP_STATE_AGG) {
817 ds_put_cstr(ds, " aggregation");
820 if (state & LACP_STATE_SYNC) {
821 ds_put_cstr(ds, " synchronized");
824 if (state & LACP_STATE_COL) {
825 ds_put_cstr(ds, " collecting");
828 if (state & LACP_STATE_DIST) {
829 ds_put_cstr(ds, " distributing");
832 if (state & LACP_STATE_DEF) {
833 ds_put_cstr(ds, " defaulted");
836 if (state & LACP_STATE_EXP) {
837 ds_put_cstr(ds, " expired");
842 lacp_print_details(struct ds *ds, struct lacp *lacp) OVS_REQUIRES(mutex)
844 struct shash slave_shash = SHASH_INITIALIZER(&slave_shash);
845 const struct shash_node **sorted_slaves = NULL;
850 ds_put_format(ds, "---- %s ----\n", lacp->name);
851 ds_put_format(ds, "\tstatus: %s", lacp->active ? "active" : "passive");
852 if (lacp->negotiated) {
853 ds_put_cstr(ds, " negotiated");
855 ds_put_cstr(ds, "\n");
857 ds_put_format(ds, "\tsys_id: " ETH_ADDR_FMT "\n", ETH_ADDR_ARGS(lacp->sys_id));
858 ds_put_format(ds, "\tsys_priority: %u\n", lacp->sys_priority);
859 ds_put_cstr(ds, "\taggregation key: ");
860 if (lacp->key_slave) {
861 ds_put_format(ds, "%u", lacp->key_slave->key
862 ? lacp->key_slave->key
863 : lacp->key_slave->port_id);
865 ds_put_cstr(ds, "none");
867 ds_put_cstr(ds, "\n");
869 ds_put_cstr(ds, "\tlacp_time: ");
871 ds_put_cstr(ds, "fast\n");
873 ds_put_cstr(ds, "slow\n");
876 HMAP_FOR_EACH (slave, node, &lacp->slaves) {
877 shash_add(&slave_shash, slave->name, slave);
879 sorted_slaves = shash_sort(&slave_shash);
881 for (i = 0; i < shash_count(&slave_shash); i++) {
883 struct lacp_info actor;
885 slave = sorted_slaves[i]->data;
886 slave_get_actor(slave, &actor);
887 switch (slave->status) {
895 status = "defaulted";
901 ds_put_format(ds, "\nslave: %s: %s %s\n", slave->name, status,
902 slave->attached ? "attached" : "detached");
903 ds_put_format(ds, "\tport_id: %u\n", slave->port_id);
904 ds_put_format(ds, "\tport_priority: %u\n", slave->port_priority);
905 ds_put_format(ds, "\tmay_enable: %s\n", (slave_may_enable__(slave)
906 ? "true" : "false"));
908 ds_put_format(ds, "\n\tactor sys_id: " ETH_ADDR_FMT "\n",
909 ETH_ADDR_ARGS(actor.sys_id));
910 ds_put_format(ds, "\tactor sys_priority: %u\n",
911 ntohs(actor.sys_priority));
912 ds_put_format(ds, "\tactor port_id: %u\n",
913 ntohs(actor.port_id));
914 ds_put_format(ds, "\tactor port_priority: %u\n",
915 ntohs(actor.port_priority));
916 ds_put_format(ds, "\tactor key: %u\n",
918 ds_put_cstr(ds, "\tactor state:");
919 ds_put_lacp_state(ds, actor.state);
920 ds_put_cstr(ds, "\n\n");
922 ds_put_format(ds, "\tpartner sys_id: " ETH_ADDR_FMT "\n",
923 ETH_ADDR_ARGS(slave->partner.sys_id));
924 ds_put_format(ds, "\tpartner sys_priority: %u\n",
925 ntohs(slave->partner.sys_priority));
926 ds_put_format(ds, "\tpartner port_id: %u\n",
927 ntohs(slave->partner.port_id));
928 ds_put_format(ds, "\tpartner port_priority: %u\n",
929 ntohs(slave->partner.port_priority));
930 ds_put_format(ds, "\tpartner key: %u\n",
931 ntohs(slave->partner.key));
932 ds_put_cstr(ds, "\tpartner state:");
933 ds_put_lacp_state(ds, slave->partner.state);
934 ds_put_cstr(ds, "\n");
937 shash_destroy(&slave_shash);
942 lacp_unixctl_show(struct unixctl_conn *conn, int argc, const char *argv[],
943 void *aux OVS_UNUSED) OVS_EXCLUDED(mutex)
945 struct ds ds = DS_EMPTY_INITIALIZER;
948 ovs_mutex_lock(&mutex);
950 lacp = lacp_find(argv[1]);
952 unixctl_command_reply_error(conn, "no such lacp object");
955 lacp_print_details(&ds, lacp);
957 LIST_FOR_EACH (lacp, node, all_lacps) {
958 lacp_print_details(&ds, lacp);
962 unixctl_command_reply(conn, ds_cstr(&ds));
966 ovs_mutex_unlock(&mutex);