1 /* Copyright (c) 2011, 2012, 2013, 2014, 2015 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"
25 #include "dp-packet.h"
26 #include "ovs-atomic.h"
28 #include "poll-loop.h"
34 #include "openvswitch/vlog.h"
36 VLOG_DEFINE_THIS_MODULE(lacp);
38 /* Masks for lacp_info state member. */
39 #define LACP_STATE_ACT 0x01 /* Activity. Active or passive? */
40 #define LACP_STATE_TIME 0x02 /* Timeout. Short or long timeout? */
41 #define LACP_STATE_AGG 0x04 /* Aggregation. Is the link is bondable? */
42 #define LACP_STATE_SYNC 0x08 /* Synchronization. Is the link in up to date? */
43 #define LACP_STATE_COL 0x10 /* Collecting. Is the link receiving frames? */
44 #define LACP_STATE_DIST 0x20 /* Distributing. Is the link sending frames? */
45 #define LACP_STATE_DEF 0x40 /* Defaulted. Using default partner info? */
46 #define LACP_STATE_EXP 0x80 /* Expired. Using expired partner info? */
48 #define LACP_FAST_TIME_TX 1000 /* Fast transmission rate. */
49 #define LACP_SLOW_TIME_TX 30000 /* Slow transmission rate. */
50 #define LACP_RX_MULTIPLIER 3 /* Multiply by TX rate to get RX rate. */
52 #define LACP_INFO_LEN 15
55 ovs_be16 sys_priority; /* System priority. */
56 struct eth_addr sys_id; /* System ID. */
57 ovs_be16 key; /* Operational key. */
58 ovs_be16 port_priority; /* Port priority. */
59 ovs_be16 port_id; /* Port ID. */
60 uint8_t state; /* State mask. See LACP_STATE macros. */
62 BUILD_ASSERT_DECL(LACP_INFO_LEN == sizeof(struct lacp_info));
64 #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 ovs_list node; /* Node in all_lacps list. */
96 char *name; /* Name of this lacp object. */
97 struct eth_addr sys_id; /* 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. */
129 uint32_t count_rx_pdus; /* dot3adAggPortStatsLACPDUsRx */
130 uint32_t count_rx_pdus_bad; /* dot3adAggPortStatsIllegalRx */
131 uint32_t count_tx_pdus; /* dot3adAggPortStatsLACPDUsTx */
134 static struct ovs_mutex mutex;
135 static struct ovs_list all_lacps__ = OVS_LIST_INITIALIZER(&all_lacps__);
136 static struct ovs_list *const all_lacps OVS_GUARDED_BY(mutex) = &all_lacps__;
138 static void lacp_update_attached(struct lacp *) OVS_REQUIRES(mutex);
140 static void slave_destroy(struct slave *) OVS_REQUIRES(mutex);
141 static void slave_set_defaulted(struct slave *) OVS_REQUIRES(mutex);
142 static void slave_set_expired(struct slave *) OVS_REQUIRES(mutex);
143 static void slave_get_actor(struct slave *, struct lacp_info *actor)
145 static void slave_get_priority(struct slave *, struct lacp_info *priority)
147 static bool slave_may_tx(const struct slave *)
149 static struct slave *slave_lookup(const struct lacp *, const void *slave)
151 static bool info_tx_equal(struct lacp_info *, struct lacp_info *)
154 static unixctl_cb_func lacp_unixctl_show;
156 /* Populates 'pdu' with a LACP PDU comprised of 'actor' and 'partner'. */
158 compose_lacp_pdu(const struct lacp_info *actor,
159 const struct lacp_info *partner, struct lacp_pdu *pdu)
161 memset(pdu, 0, sizeof *pdu);
170 pdu->partner_type = 2;
171 pdu->partner_len = 20;
172 pdu->partner = *partner;
174 pdu->collector_type = 3;
175 pdu->collector_len = 16;
176 pdu->collector_delay = htons(0);
179 /* Parses 'b' which represents a packet containing a LACP PDU. This function
180 * returns NULL if 'b' is malformed, or does not represent a LACP PDU format
181 * supported by OVS. Otherwise, it returns a pointer to the lacp_pdu contained
183 static const struct lacp_pdu *
184 parse_lacp_packet(const struct dp_packet *p)
186 const struct lacp_pdu *pdu;
188 pdu = dp_packet_at(p, (uint8_t *)dp_packet_l3(p) - (uint8_t *)dp_packet_data(p),
191 if (pdu && pdu->subtype == 1
192 && pdu->actor_type == 1 && pdu->actor_len == 20
193 && pdu->partner_type == 2 && pdu->partner_len == 20) {
200 /* LACP Protocol Implementation. */
202 /* Initializes the lacp module. */
206 unixctl_command_register("lacp/show", "[port]", 0, 1,
207 lacp_unixctl_show, NULL);
211 lacp_lock(void) OVS_ACQUIRES(mutex)
213 static struct ovsthread_once once = OVSTHREAD_ONCE_INITIALIZER;
215 if (ovsthread_once_start(&once)) {
216 ovs_mutex_init_recursive(&mutex);
217 ovsthread_once_done(&once);
219 ovs_mutex_lock(&mutex);
223 lacp_unlock(void) OVS_RELEASES(mutex)
225 ovs_mutex_unlock(&mutex);
228 /* Creates a LACP object. */
230 lacp_create(void) OVS_EXCLUDED(mutex)
234 lacp = xzalloc(sizeof *lacp);
235 hmap_init(&lacp->slaves);
236 ovs_refcount_init(&lacp->ref_cnt);
239 list_push_back(all_lacps, &lacp->node);
245 lacp_ref(const struct lacp *lacp_)
247 struct lacp *lacp = CONST_CAST(struct lacp *, lacp_);
249 ovs_refcount_ref(&lacp->ref_cnt);
254 /* Destroys 'lacp' and its slaves. Does nothing if 'lacp' is NULL. */
256 lacp_unref(struct lacp *lacp) OVS_EXCLUDED(mutex)
258 if (lacp && ovs_refcount_unref_relaxed(&lacp->ref_cnt) == 1) {
259 struct slave *slave, *next;
262 HMAP_FOR_EACH_SAFE (slave, next, node, &lacp->slaves) {
263 slave_destroy(slave);
266 hmap_destroy(&lacp->slaves);
267 list_remove(&lacp->node);
274 /* Configures 'lacp' with settings from 's'. */
276 lacp_configure(struct lacp *lacp, const struct lacp_settings *s)
279 ovs_assert(!eth_addr_is_zero(s->id));
282 if (!lacp->name || strcmp(s->name, lacp->name)) {
284 lacp->name = xstrdup(s->name);
287 if (!eth_addr_equals(lacp->sys_id, s->id)
288 || lacp->sys_priority != s->priority) {
289 lacp->sys_id = s->id;
290 lacp->sys_priority = s->priority;
294 lacp->active = s->active;
295 lacp->fast = s->fast;
297 if (lacp->fallback_ab != s->fallback_ab_cfg) {
298 lacp->fallback_ab = s->fallback_ab_cfg;
305 /* Returns true if 'lacp' is configured in active mode, false if 'lacp' is
306 * configured for passive mode. */
308 lacp_is_active(const struct lacp *lacp) OVS_EXCLUDED(mutex)
317 /* Processes 'packet' which was received on 'slave_'. This function should be
318 * called on all packets received on 'slave_' with Ethernet Type ETH_TYPE_LACP.
321 lacp_process_packet(struct lacp *lacp, const void *slave_,
322 const struct dp_packet *packet)
325 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
326 const struct lacp_pdu *pdu;
327 long long int tx_rate;
331 slave = slave_lookup(lacp, slave_);
335 slave->count_rx_pdus++;
337 pdu = parse_lacp_packet(packet);
339 slave->count_rx_pdus_bad++;
340 VLOG_WARN_RL(&rl, "%s: received an unparsable LACP PDU.", lacp->name);
344 slave->status = LACP_CURRENT;
345 tx_rate = lacp->fast ? LACP_FAST_TIME_TX : LACP_SLOW_TIME_TX;
346 timer_set_duration(&slave->rx, LACP_RX_MULTIPLIER * tx_rate);
348 slave->ntt_actor = pdu->partner;
350 /* Update our information about our partner if it's out of date. This may
351 * cause priorities to change so re-calculate attached status of all
353 if (memcmp(&slave->partner, &pdu->actor, sizeof pdu->actor)) {
355 slave->partner = pdu->actor;
362 /* Returns the lacp_status of the given 'lacp' object (which may be NULL). */
364 lacp_status(const struct lacp *lacp) OVS_EXCLUDED(mutex)
367 enum lacp_status ret;
370 ret = lacp->negotiated ? LACP_NEGOTIATED : LACP_CONFIGURED;
374 /* Don't take 'mutex'. It might not even be initialized, since we
375 * don't know that any lacp object has been created. */
376 return LACP_DISABLED;
380 /* Registers 'slave_' as subordinate to 'lacp'. This should be called at least
381 * once per slave in a LACP managed bond. Should also be called whenever a
382 * slave's settings change. */
384 lacp_slave_register(struct lacp *lacp, void *slave_,
385 const struct lacp_slave_settings *s)
391 slave = slave_lookup(lacp, slave_);
393 slave = xzalloc(sizeof *slave);
396 hmap_insert(&lacp->slaves, &slave->node, hash_pointer(slave_, 0));
397 slave_set_defaulted(slave);
399 if (!lacp->key_slave) {
400 lacp->key_slave = slave;
404 if (!slave->name || strcmp(s->name, slave->name)) {
406 slave->name = xstrdup(s->name);
409 if (slave->port_id != s->id
410 || slave->port_priority != s->priority
411 || slave->key != s->key) {
412 slave->port_id = s->id;
413 slave->port_priority = s->priority;
418 if (lacp->active || lacp->negotiated) {
419 slave_set_expired(slave);
425 /* Unregisters 'slave_' with 'lacp'. */
427 lacp_slave_unregister(struct lacp *lacp, const void *slave_)
433 slave = slave_lookup(lacp, slave_);
435 slave_destroy(slave);
441 /* This function should be called whenever the carrier status of 'slave_' has
442 * changed. If 'lacp' is null, this function has no effect.*/
444 lacp_slave_carrier_changed(const struct lacp *lacp, const void *slave_)
453 slave = slave_lookup(lacp, slave_);
458 if (slave->status == LACP_CURRENT || slave->lacp->active) {
459 slave_set_expired(slave);
467 slave_may_enable__(struct slave *slave) OVS_REQUIRES(mutex)
469 /* The slave may be enabled if it's attached to an aggregator and its
470 * partner is synchronized.*/
471 return slave->attached && (slave->partner.state & LACP_STATE_SYNC
472 || (slave->lacp && slave->lacp->fallback_ab
473 && slave->status == LACP_DEFAULTED));
476 /* This function should be called before enabling 'slave_' to send or receive
477 * traffic. If it returns false, 'slave_' should not enabled. As a
478 * convenience, returns true if 'lacp' is NULL. */
480 lacp_slave_may_enable(const struct lacp *lacp, const void *slave_)
488 slave = slave_lookup(lacp, slave_);
489 ret = slave ? slave_may_enable__(slave) : false;
497 /* Returns true if partner information on 'slave_' is up to date. 'slave_'
498 * not being current, generally indicates a connectivity problem, or a
499 * misconfigured (or broken) partner. */
501 lacp_slave_is_current(const struct lacp *lacp, const void *slave_)
508 slave = slave_lookup(lacp, slave_);
509 ret = slave ? slave->status != LACP_DEFAULTED : false;
514 /* This function should be called periodically to update 'lacp'. */
516 lacp_run(struct lacp *lacp, lacp_send_pdu *send_pdu) OVS_EXCLUDED(mutex)
521 HMAP_FOR_EACH (slave, node, &lacp->slaves) {
522 if (timer_expired(&slave->rx)) {
523 enum slave_status old_status = slave->status;
525 if (slave->status == LACP_CURRENT) {
526 slave_set_expired(slave);
527 } else if (slave->status == LACP_EXPIRED) {
528 slave_set_defaulted(slave);
530 if (slave->status != old_status) {
531 seq_change(connectivity_seq_get());
537 lacp_update_attached(lacp);
540 HMAP_FOR_EACH (slave, node, &lacp->slaves) {
541 struct lacp_info actor;
543 if (!slave_may_tx(slave)) {
547 slave_get_actor(slave, &actor);
549 if (timer_expired(&slave->tx)
550 || !info_tx_equal(&actor, &slave->ntt_actor)) {
551 long long int duration;
554 slave->ntt_actor = actor;
555 compose_lacp_pdu(&actor, &slave->partner, &pdu);
556 send_pdu(slave->aux, &pdu, sizeof pdu);
557 slave->count_tx_pdus++;
559 duration = (slave->partner.state & LACP_STATE_TIME
561 : LACP_SLOW_TIME_TX);
563 timer_set_duration(&slave->tx, duration);
564 seq_change(connectivity_seq_get());
570 /* Causes poll_block() to wake up when lacp_run() needs to be called again. */
572 lacp_wait(struct lacp *lacp) OVS_EXCLUDED(mutex)
577 HMAP_FOR_EACH (slave, node, &lacp->slaves) {
578 if (slave_may_tx(slave)) {
579 timer_wait(&slave->tx);
582 if (slave->status != LACP_DEFAULTED) {
583 timer_wait(&slave->rx);
589 /* Static Helpers. */
591 /* Updates the attached status of all slaves controlled by 'lacp' and sets its
592 * negotiated parameter to true if any slaves are attachable. */
594 lacp_update_attached(struct lacp *lacp) OVS_REQUIRES(mutex)
596 struct slave *lead, *slave;
597 struct lacp_info lead_pri;
598 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 10);
600 lacp->update = false;
603 HMAP_FOR_EACH (slave, node, &lacp->slaves) {
604 struct lacp_info pri;
606 slave->attached = false;
608 /* XXX: In the future allow users to configure the expected system ID.
609 * For now just special case loopback. */
610 if (eth_addr_equals(slave->partner.sys_id, slave->lacp->sys_id)) {
611 VLOG_WARN_RL(&rl, "slave %s: Loopback detected. Slave is "
612 "connected to its own bond", slave->name);
616 if (slave->status == LACP_DEFAULTED) {
617 if (lacp->fallback_ab) {
618 slave->attached = true;
623 slave->attached = true;
624 slave_get_priority(slave, &pri);
626 if (!lead || memcmp(&pri, &lead_pri, sizeof pri) < 0) {
632 lacp->negotiated = lead != NULL;
635 HMAP_FOR_EACH (slave, node, &lacp->slaves) {
636 if ((lacp->fallback_ab && slave->status == LACP_DEFAULTED)
637 || lead->partner.key != slave->partner.key
638 || !eth_addr_equals(lead->partner.sys_id,
639 slave->partner.sys_id)) {
640 slave->attached = false;
647 slave_destroy(struct slave *slave) OVS_REQUIRES(mutex)
650 struct lacp *lacp = slave->lacp;
653 hmap_remove(&lacp->slaves, &slave->node);
655 if (lacp->key_slave == slave) {
656 struct hmap_node *slave_node = hmap_first(&lacp->slaves);
659 lacp->key_slave = CONTAINER_OF(slave_node, struct slave, node);
661 lacp->key_slave = NULL;
671 slave_set_defaulted(struct slave *slave) OVS_REQUIRES(mutex)
673 memset(&slave->partner, 0, sizeof slave->partner);
675 slave->lacp->update = true;
676 slave->status = LACP_DEFAULTED;
680 slave_set_expired(struct slave *slave) OVS_REQUIRES(mutex)
682 slave->status = LACP_EXPIRED;
683 slave->partner.state |= LACP_STATE_TIME;
684 slave->partner.state &= ~LACP_STATE_SYNC;
686 timer_set_duration(&slave->rx, LACP_RX_MULTIPLIER * LACP_FAST_TIME_TX);
690 slave_get_actor(struct slave *slave, struct lacp_info *actor)
693 struct lacp *lacp = slave->lacp;
698 state |= LACP_STATE_ACT;
702 state |= LACP_STATE_TIME;
705 if (slave->attached) {
706 state |= LACP_STATE_SYNC;
709 if (slave->status == LACP_DEFAULTED) {
710 state |= LACP_STATE_DEF;
713 if (slave->status == LACP_EXPIRED) {
714 state |= LACP_STATE_EXP;
717 if (hmap_count(&lacp->slaves) > 1) {
718 state |= LACP_STATE_AGG;
721 if (slave->attached || !lacp->negotiated) {
722 state |= LACP_STATE_COL | LACP_STATE_DIST;
725 key = lacp->key_slave->key;
727 key = lacp->key_slave->port_id;
730 actor->state = state;
731 actor->key = htons(key);
732 actor->port_priority = htons(slave->port_priority);
733 actor->port_id = htons(slave->port_id);
734 actor->sys_priority = htons(lacp->sys_priority);
735 actor->sys_id = lacp->sys_id;
738 /* Given 'slave', populates 'priority' with data representing its LACP link
739 * priority. If two priority objects populated by this function are compared
740 * using memcmp, the higher priority link will be less than the lower priority
743 slave_get_priority(struct slave *slave, struct lacp_info *priority)
746 uint16_t partner_priority, actor_priority;
748 /* Choose the lacp_info of the higher priority system by comparing their
749 * system priorities and mac addresses. */
750 actor_priority = slave->lacp->sys_priority;
751 partner_priority = ntohs(slave->partner.sys_priority);
752 if (actor_priority < partner_priority) {
753 slave_get_actor(slave, priority);
754 } else if (partner_priority < actor_priority) {
755 *priority = slave->partner;
756 } else if (eth_addr_compare_3way(slave->lacp->sys_id,
757 slave->partner.sys_id) < 0) {
758 slave_get_actor(slave, priority);
760 *priority = slave->partner;
763 /* Key and state are not used in priority comparisons. */
769 slave_may_tx(const struct slave *slave) OVS_REQUIRES(mutex)
771 return slave->lacp->active || slave->status != LACP_DEFAULTED;
774 static struct slave *
775 slave_lookup(const struct lacp *lacp, const void *slave_) OVS_REQUIRES(mutex)
779 HMAP_FOR_EACH_IN_BUCKET (slave, node, hash_pointer(slave_, 0),
781 if (slave->aux == slave_) {
789 /* Two lacp_info structures are tx_equal if and only if they do not differ in
790 * ways which would require a lacp_pdu transmission. */
792 info_tx_equal(struct lacp_info *a, struct lacp_info *b)
795 /* LACP specification dictates that we transmit whenever the actor and
796 * remote_actor differ in the following fields: Port, Port Priority,
797 * System, System Priority, Aggregation Key, Activity State, Timeout State,
798 * Sync State, and Aggregation State. The state flags are most likely to
799 * change so are checked first. */
800 return !((a->state ^ b->state) & (LACP_STATE_ACT
804 && a->port_id == b->port_id
805 && a->port_priority == b->port_priority
807 && a->sys_priority == b->sys_priority
808 && eth_addr_equals(a->sys_id, b->sys_id);
812 lacp_find(const char *name) OVS_REQUIRES(mutex)
816 LIST_FOR_EACH (lacp, node, all_lacps) {
817 if (!strcmp(lacp->name, name)) {
826 ds_put_lacp_state(struct ds *ds, uint8_t state)
828 if (state & LACP_STATE_ACT) {
829 ds_put_cstr(ds, " activity");
832 if (state & LACP_STATE_TIME) {
833 ds_put_cstr(ds, " timeout");
836 if (state & LACP_STATE_AGG) {
837 ds_put_cstr(ds, " aggregation");
840 if (state & LACP_STATE_SYNC) {
841 ds_put_cstr(ds, " synchronized");
844 if (state & LACP_STATE_COL) {
845 ds_put_cstr(ds, " collecting");
848 if (state & LACP_STATE_DIST) {
849 ds_put_cstr(ds, " distributing");
852 if (state & LACP_STATE_DEF) {
853 ds_put_cstr(ds, " defaulted");
856 if (state & LACP_STATE_EXP) {
857 ds_put_cstr(ds, " expired");
862 lacp_print_details(struct ds *ds, struct lacp *lacp) OVS_REQUIRES(mutex)
864 struct shash slave_shash = SHASH_INITIALIZER(&slave_shash);
865 const struct shash_node **sorted_slaves = NULL;
870 ds_put_format(ds, "---- %s ----\n", lacp->name);
871 ds_put_format(ds, "\tstatus: %s", lacp->active ? "active" : "passive");
872 if (lacp->negotiated) {
873 ds_put_cstr(ds, " negotiated");
875 ds_put_cstr(ds, "\n");
877 ds_put_format(ds, "\tsys_id: " ETH_ADDR_FMT "\n", ETH_ADDR_ARGS(lacp->sys_id));
878 ds_put_format(ds, "\tsys_priority: %u\n", lacp->sys_priority);
879 ds_put_cstr(ds, "\taggregation key: ");
880 if (lacp->key_slave) {
881 ds_put_format(ds, "%u", lacp->key_slave->key
882 ? lacp->key_slave->key
883 : lacp->key_slave->port_id);
885 ds_put_cstr(ds, "none");
887 ds_put_cstr(ds, "\n");
889 ds_put_cstr(ds, "\tlacp_time: ");
891 ds_put_cstr(ds, "fast\n");
893 ds_put_cstr(ds, "slow\n");
896 HMAP_FOR_EACH (slave, node, &lacp->slaves) {
897 shash_add(&slave_shash, slave->name, slave);
899 sorted_slaves = shash_sort(&slave_shash);
901 for (i = 0; i < shash_count(&slave_shash); i++) {
903 struct lacp_info actor;
905 slave = sorted_slaves[i]->data;
906 slave_get_actor(slave, &actor);
907 switch (slave->status) {
915 status = "defaulted";
921 ds_put_format(ds, "\nslave: %s: %s %s\n", slave->name, status,
922 slave->attached ? "attached" : "detached");
923 ds_put_format(ds, "\tport_id: %u\n", slave->port_id);
924 ds_put_format(ds, "\tport_priority: %u\n", slave->port_priority);
925 ds_put_format(ds, "\tmay_enable: %s\n", (slave_may_enable__(slave)
926 ? "true" : "false"));
928 ds_put_format(ds, "\n\tactor sys_id: " ETH_ADDR_FMT "\n",
929 ETH_ADDR_ARGS(actor.sys_id));
930 ds_put_format(ds, "\tactor sys_priority: %u\n",
931 ntohs(actor.sys_priority));
932 ds_put_format(ds, "\tactor port_id: %u\n",
933 ntohs(actor.port_id));
934 ds_put_format(ds, "\tactor port_priority: %u\n",
935 ntohs(actor.port_priority));
936 ds_put_format(ds, "\tactor key: %u\n",
938 ds_put_cstr(ds, "\tactor state:");
939 ds_put_lacp_state(ds, actor.state);
940 ds_put_cstr(ds, "\n\n");
942 ds_put_format(ds, "\tpartner sys_id: " ETH_ADDR_FMT "\n",
943 ETH_ADDR_ARGS(slave->partner.sys_id));
944 ds_put_format(ds, "\tpartner sys_priority: %u\n",
945 ntohs(slave->partner.sys_priority));
946 ds_put_format(ds, "\tpartner port_id: %u\n",
947 ntohs(slave->partner.port_id));
948 ds_put_format(ds, "\tpartner port_priority: %u\n",
949 ntohs(slave->partner.port_priority));
950 ds_put_format(ds, "\tpartner key: %u\n",
951 ntohs(slave->partner.key));
952 ds_put_cstr(ds, "\tpartner state:");
953 ds_put_lacp_state(ds, slave->partner.state);
954 ds_put_cstr(ds, "\n");
957 shash_destroy(&slave_shash);
962 lacp_unixctl_show(struct unixctl_conn *conn, int argc, const char *argv[],
963 void *aux OVS_UNUSED) OVS_EXCLUDED(mutex)
965 struct ds ds = DS_EMPTY_INITIALIZER;
970 lacp = lacp_find(argv[1]);
972 unixctl_command_reply_error(conn, "no such lacp object");
975 lacp_print_details(&ds, lacp);
977 LIST_FOR_EACH (lacp, node, all_lacps) {
978 lacp_print_details(&ds, lacp);
982 unixctl_command_reply(conn, ds_cstr(&ds));
989 /* Extract a snapshot of the current state and counters for a slave port.
990 Return false if the slave is not active. */
992 lacp_get_slave_stats(const struct lacp *lacp, const void *slave_, struct lacp_slave_stats *stats)
996 struct lacp_info actor;
999 ovs_mutex_lock(&mutex);
1001 slave = slave_lookup(lacp, slave_);
1004 slave_get_actor(slave, &actor);
1005 stats->dot3adAggPortActorSystemID = actor.sys_id;
1006 stats->dot3adAggPortPartnerOperSystemID = slave->partner.sys_id;
1007 stats->dot3adAggPortAttachedAggID = (lacp->key_slave->key ?
1008 lacp->key_slave->key :
1009 lacp->key_slave->port_id);
1011 /* Construct my admin-state. Assume aggregation is configured on. */
1012 stats->dot3adAggPortActorAdminState = LACP_STATE_AGG;
1014 stats->dot3adAggPortActorAdminState |= LACP_STATE_ACT;
1017 stats->dot3adAggPortActorAdminState |= LACP_STATE_TIME;
1019 /* XXX Not sure how to know the partner admin state. It
1020 * might have to be captured and remembered during the
1021 * negotiation phase.
1023 stats->dot3adAggPortPartnerAdminState = 0;
1025 stats->dot3adAggPortActorOperState = actor.state;
1026 stats->dot3adAggPortPartnerOperState = slave->partner.state;
1028 /* Read out the latest counters */
1029 stats->dot3adAggPortStatsLACPDUsRx = slave->count_rx_pdus;
1030 stats->dot3adAggPortStatsIllegalRx = slave->count_rx_pdus_bad;
1031 stats->dot3adAggPortStatsLACPDUsTx = slave->count_tx_pdus;
1035 ovs_mutex_unlock(&mutex);