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. */
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 atomic_init(&lacp
->ref_cnt
, 1);
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_
);
233 atomic_add(&lacp
->ref_cnt
, 1, &orig
);
234 ovs_assert(orig
> 0);
239 /* Destroys 'lacp' and its slaves. Does nothing if 'lacp' is NULL. */
241 lacp_unref(struct lacp
*lacp
) OVS_EXCLUDED(mutex
)
249 atomic_sub(&lacp
->ref_cnt
, 1, &orig
);
250 ovs_assert(orig
> 0);
252 struct slave
*slave
, *next
;
254 ovs_mutex_lock(&mutex
);
255 HMAP_FOR_EACH_SAFE (slave
, next
, node
, &lacp
->slaves
) {
256 slave_destroy(slave
);
259 hmap_destroy(&lacp
->slaves
);
260 list_remove(&lacp
->node
);
263 ovs_mutex_unlock(&mutex
);
267 /* Configures 'lacp' with settings from 's'. */
269 lacp_configure(struct lacp
*lacp
, const struct lacp_settings
*s
)
272 ovs_assert(!eth_addr_is_zero(s
->id
));
274 ovs_mutex_lock(&mutex
);
275 if (!lacp
->name
|| strcmp(s
->name
, lacp
->name
)) {
277 lacp
->name
= xstrdup(s
->name
);
280 if (!eth_addr_equals(lacp
->sys_id
, s
->id
)
281 || lacp
->sys_priority
!= s
->priority
) {
282 memcpy(lacp
->sys_id
, s
->id
, ETH_ADDR_LEN
);
283 lacp
->sys_priority
= s
->priority
;
287 lacp
->active
= s
->active
;
288 lacp
->fast
= s
->fast
;
290 if (lacp
->fallback_ab
!= s
->fallback_ab_cfg
) {
291 lacp
->fallback_ab
= s
->fallback_ab_cfg
;
295 ovs_mutex_unlock(&mutex
);
298 /* Returns true if 'lacp' is configured in active mode, false if 'lacp' is
299 * configured for passive mode. */
301 lacp_is_active(const struct lacp
*lacp
) OVS_EXCLUDED(mutex
)
304 ovs_mutex_lock(&mutex
);
306 ovs_mutex_unlock(&mutex
);
310 /* Processes 'packet' which was received on 'slave_'. This function should be
311 * called on all packets received on 'slave_' with Ethernet Type ETH_TYPE_LACP.
314 lacp_process_packet(struct lacp
*lacp
, const void *slave_
,
315 const struct ofpbuf
*packet
)
318 static struct vlog_rate_limit rl
= VLOG_RATE_LIMIT_INIT(1, 5);
319 const struct lacp_pdu
*pdu
;
320 long long int tx_rate
;
323 ovs_mutex_lock(&mutex
);
324 slave
= slave_lookup(lacp
, slave_
);
329 pdu
= parse_lacp_packet(packet
);
331 VLOG_WARN_RL(&rl
, "%s: received an unparsable LACP PDU.", lacp
->name
);
335 slave
->status
= LACP_CURRENT
;
336 tx_rate
= lacp
->fast
? LACP_FAST_TIME_TX
: LACP_SLOW_TIME_TX
;
337 timer_set_duration(&slave
->rx
, LACP_RX_MULTIPLIER
* tx_rate
);
339 slave
->ntt_actor
= pdu
->partner
;
341 /* Update our information about our partner if it's out of date. This may
342 * cause priorities to change so re-calculate attached status of all
344 if (memcmp(&slave
->partner
, &pdu
->actor
, sizeof pdu
->actor
)) {
346 slave
->partner
= pdu
->actor
;
350 ovs_mutex_unlock(&mutex
);
353 /* Returns the lacp_status of the given 'lacp' object (which may be NULL). */
355 lacp_status(const struct lacp
*lacp
) OVS_EXCLUDED(mutex
)
357 enum lacp_status ret
;
359 ovs_mutex_lock(&mutex
);
362 } else if (lacp
->negotiated
) {
363 ret
= LACP_NEGOTIATED
;
365 ret
= LACP_CONFIGURED
;
367 ovs_mutex_unlock(&mutex
);
371 /* Registers 'slave_' as subordinate to 'lacp'. This should be called at least
372 * once per slave in a LACP managed bond. Should also be called whenever a
373 * slave's settings change. */
375 lacp_slave_register(struct lacp
*lacp
, void *slave_
,
376 const struct lacp_slave_settings
*s
)
381 ovs_mutex_lock(&mutex
);
382 slave
= slave_lookup(lacp
, slave_
);
384 slave
= xzalloc(sizeof *slave
);
387 hmap_insert(&lacp
->slaves
, &slave
->node
, hash_pointer(slave_
, 0));
388 slave_set_defaulted(slave
);
390 if (!lacp
->key_slave
) {
391 lacp
->key_slave
= slave
;
395 if (!slave
->name
|| strcmp(s
->name
, slave
->name
)) {
397 slave
->name
= xstrdup(s
->name
);
400 if (slave
->port_id
!= s
->id
401 || slave
->port_priority
!= s
->priority
402 || slave
->key
!= s
->key
) {
403 slave
->port_id
= s
->id
;
404 slave
->port_priority
= s
->priority
;
409 if (lacp
->active
|| lacp
->negotiated
) {
410 slave_set_expired(slave
);
413 ovs_mutex_unlock(&mutex
);
416 /* Unregisters 'slave_' with 'lacp'. */
418 lacp_slave_unregister(struct lacp
*lacp
, const void *slave_
)
423 ovs_mutex_lock(&mutex
);
424 slave
= slave_lookup(lacp
, slave_
);
426 slave_destroy(slave
);
429 ovs_mutex_unlock(&mutex
);
432 /* This function should be called whenever the carrier status of 'slave_' has
433 * changed. If 'lacp' is null, this function has no effect.*/
435 lacp_slave_carrier_changed(const struct lacp
*lacp
, const void *slave_
)
443 ovs_mutex_lock(&mutex
);
444 slave
= slave_lookup(lacp
, slave_
);
449 if (slave
->status
== LACP_CURRENT
|| slave
->lacp
->active
) {
450 slave_set_expired(slave
);
454 ovs_mutex_unlock(&mutex
);
458 slave_may_enable__(struct slave
*slave
) OVS_REQUIRES(mutex
)
460 /* The slave may be enabled if it's attached to an aggregator and its
461 * partner is synchronized.*/
462 return slave
->attached
&& (slave
->partner
.state
& LACP_STATE_SYNC
463 || (slave
->lacp
&& slave
->lacp
->fallback_ab
464 && slave
->status
== LACP_DEFAULTED
));
467 /* This function should be called before enabling 'slave_' to send or receive
468 * traffic. If it returns false, 'slave_' should not enabled. As a
469 * convenience, returns true if 'lacp' is NULL. */
471 lacp_slave_may_enable(const struct lacp
*lacp
, const void *slave_
)
478 ovs_mutex_lock(&mutex
);
479 slave
= slave_lookup(lacp
, slave_
);
480 ret
= slave
? slave_may_enable__(slave
) : false;
481 ovs_mutex_unlock(&mutex
);
488 /* Returns true if partner information on 'slave_' is up to date. 'slave_'
489 * not being current, generally indicates a connectivity problem, or a
490 * misconfigured (or broken) partner. */
492 lacp_slave_is_current(const struct lacp
*lacp
, const void *slave_
)
498 ovs_mutex_lock(&mutex
);
499 slave
= slave_lookup(lacp
, slave_
);
500 ret
= slave
? slave
->status
!= LACP_DEFAULTED
: false;
501 ovs_mutex_unlock(&mutex
);
505 /* This function should be called periodically to update 'lacp'. */
507 lacp_run(struct lacp
*lacp
, lacp_send_pdu
*send_pdu
) OVS_EXCLUDED(mutex
)
511 ovs_mutex_lock(&mutex
);
512 HMAP_FOR_EACH (slave
, node
, &lacp
->slaves
) {
513 if (timer_expired(&slave
->rx
)) {
514 enum slave_status old_status
= slave
->status
;
516 if (slave
->status
== LACP_CURRENT
) {
517 slave_set_expired(slave
);
518 } else if (slave
->status
== LACP_EXPIRED
) {
519 slave_set_defaulted(slave
);
521 if (slave
->status
!= old_status
) {
522 seq_change(connectivity_seq_get());
528 lacp_update_attached(lacp
);
531 HMAP_FOR_EACH (slave
, node
, &lacp
->slaves
) {
532 struct lacp_info actor
;
534 if (!slave_may_tx(slave
)) {
538 slave_get_actor(slave
, &actor
);
540 if (timer_expired(&slave
->tx
)
541 || !info_tx_equal(&actor
, &slave
->ntt_actor
)) {
542 long long int duration
;
545 slave
->ntt_actor
= actor
;
546 compose_lacp_pdu(&actor
, &slave
->partner
, &pdu
);
547 send_pdu(slave
->aux
, &pdu
, sizeof pdu
);
549 duration
= (slave
->partner
.state
& LACP_STATE_TIME
551 : LACP_SLOW_TIME_TX
);
553 timer_set_duration(&slave
->tx
, duration
);
554 seq_change(connectivity_seq_get());
557 ovs_mutex_unlock(&mutex
);
560 /* Causes poll_block() to wake up when lacp_run() needs to be called again. */
562 lacp_wait(struct lacp
*lacp
) OVS_EXCLUDED(mutex
)
566 ovs_mutex_lock(&mutex
);
567 HMAP_FOR_EACH (slave
, node
, &lacp
->slaves
) {
568 if (slave_may_tx(slave
)) {
569 timer_wait(&slave
->tx
);
572 if (slave
->status
!= LACP_DEFAULTED
) {
573 timer_wait(&slave
->rx
);
576 ovs_mutex_unlock(&mutex
);
579 /* Static Helpers. */
581 /* Updates the attached status of all slaves controlled by 'lacp' and sets its
582 * negotiated parameter to true if any slaves are attachable. */
584 lacp_update_attached(struct lacp
*lacp
) OVS_REQUIRES(mutex
)
586 struct slave
*lead
, *slave
;
587 struct lacp_info lead_pri
;
588 static struct vlog_rate_limit rl
= VLOG_RATE_LIMIT_INIT(1, 10);
590 lacp
->update
= false;
593 HMAP_FOR_EACH (slave
, node
, &lacp
->slaves
) {
594 struct lacp_info pri
;
596 slave
->attached
= false;
598 /* XXX: In the future allow users to configure the expected system ID.
599 * For now just special case loopback. */
600 if (eth_addr_equals(slave
->partner
.sys_id
, slave
->lacp
->sys_id
)) {
601 VLOG_WARN_RL(&rl
, "slave %s: Loopback detected. Slave is "
602 "connected to its own bond", slave
->name
);
606 if (slave
->status
== LACP_DEFAULTED
) {
607 if (lacp
->fallback_ab
) {
608 slave
->attached
= true;
613 slave
->attached
= true;
614 slave_get_priority(slave
, &pri
);
616 if (!lead
|| memcmp(&pri
, &lead_pri
, sizeof pri
) < 0) {
622 lacp
->negotiated
= lead
!= NULL
;
625 HMAP_FOR_EACH (slave
, node
, &lacp
->slaves
) {
626 if ((lacp
->fallback_ab
&& slave
->status
== LACP_DEFAULTED
)
627 || lead
->partner
.key
!= slave
->partner
.key
628 || !eth_addr_equals(lead
->partner
.sys_id
,
629 slave
->partner
.sys_id
)) {
630 slave
->attached
= false;
637 slave_destroy(struct slave
*slave
) OVS_REQUIRES(mutex
)
640 struct lacp
*lacp
= slave
->lacp
;
643 hmap_remove(&lacp
->slaves
, &slave
->node
);
645 if (lacp
->key_slave
== slave
) {
646 struct hmap_node
*slave_node
= hmap_first(&lacp
->slaves
);
649 lacp
->key_slave
= CONTAINER_OF(slave_node
, struct slave
, node
);
651 lacp
->key_slave
= NULL
;
661 slave_set_defaulted(struct slave
*slave
) OVS_REQUIRES(mutex
)
663 memset(&slave
->partner
, 0, sizeof slave
->partner
);
665 slave
->lacp
->update
= true;
666 slave
->status
= LACP_DEFAULTED
;
670 slave_set_expired(struct slave
*slave
) OVS_REQUIRES(mutex
)
672 slave
->status
= LACP_EXPIRED
;
673 slave
->partner
.state
|= LACP_STATE_TIME
;
674 slave
->partner
.state
&= ~LACP_STATE_SYNC
;
676 timer_set_duration(&slave
->rx
, LACP_RX_MULTIPLIER
* LACP_FAST_TIME_TX
);
680 slave_get_actor(struct slave
*slave
, struct lacp_info
*actor
)
683 struct lacp
*lacp
= slave
->lacp
;
688 state
|= LACP_STATE_ACT
;
692 state
|= LACP_STATE_TIME
;
695 if (slave
->attached
) {
696 state
|= LACP_STATE_SYNC
;
699 if (slave
->status
== LACP_DEFAULTED
) {
700 state
|= LACP_STATE_DEF
;
703 if (slave
->status
== LACP_EXPIRED
) {
704 state
|= LACP_STATE_EXP
;
707 if (hmap_count(&lacp
->slaves
) > 1) {
708 state
|= LACP_STATE_AGG
;
711 if (slave
->attached
|| !lacp
->negotiated
) {
712 state
|= LACP_STATE_COL
| LACP_STATE_DIST
;
715 key
= lacp
->key_slave
->key
;
717 key
= lacp
->key_slave
->port_id
;
720 actor
->state
= state
;
721 actor
->key
= htons(key
);
722 actor
->port_priority
= htons(slave
->port_priority
);
723 actor
->port_id
= htons(slave
->port_id
);
724 actor
->sys_priority
= htons(lacp
->sys_priority
);
725 memcpy(&actor
->sys_id
, lacp
->sys_id
, ETH_ADDR_LEN
);
728 /* Given 'slave', populates 'priority' with data representing its LACP link
729 * priority. If two priority objects populated by this function are compared
730 * using memcmp, the higher priority link will be less than the lower priority
733 slave_get_priority(struct slave
*slave
, struct lacp_info
*priority
)
736 uint16_t partner_priority
, actor_priority
;
738 /* Choose the lacp_info of the higher priority system by comparing their
739 * system priorities and mac addresses. */
740 actor_priority
= slave
->lacp
->sys_priority
;
741 partner_priority
= ntohs(slave
->partner
.sys_priority
);
742 if (actor_priority
< partner_priority
) {
743 slave_get_actor(slave
, priority
);
744 } else if (partner_priority
< actor_priority
) {
745 *priority
= slave
->partner
;
746 } else if (eth_addr_compare_3way(slave
->lacp
->sys_id
,
747 slave
->partner
.sys_id
) < 0) {
748 slave_get_actor(slave
, priority
);
750 *priority
= slave
->partner
;
753 /* Key and state are not used in priority comparisons. */
759 slave_may_tx(const struct slave
*slave
) OVS_REQUIRES(mutex
)
761 return slave
->lacp
->active
|| slave
->status
!= LACP_DEFAULTED
;
764 static struct slave
*
765 slave_lookup(const struct lacp
*lacp
, const void *slave_
) OVS_REQUIRES(mutex
)
769 HMAP_FOR_EACH_IN_BUCKET (slave
, node
, hash_pointer(slave_
, 0),
771 if (slave
->aux
== slave_
) {
779 /* Two lacp_info structures are tx_equal if and only if they do not differ in
780 * ways which would require a lacp_pdu transmission. */
782 info_tx_equal(struct lacp_info
*a
, struct lacp_info
*b
)
785 /* LACP specification dictates that we transmit whenever the actor and
786 * remote_actor differ in the following fields: Port, Port Priority,
787 * System, System Priority, Aggregation Key, Activity State, Timeout State,
788 * Sync State, and Aggregation State. The state flags are most likely to
789 * change so are checked first. */
790 return !((a
->state
^ b
->state
) & (LACP_STATE_ACT
794 && a
->port_id
== b
->port_id
795 && a
->port_priority
== b
->port_priority
797 && a
->sys_priority
== b
->sys_priority
798 && eth_addr_equals(a
->sys_id
, b
->sys_id
);
802 lacp_find(const char *name
) OVS_REQUIRES(mutex
)
806 LIST_FOR_EACH (lacp
, node
, all_lacps
) {
807 if (!strcmp(lacp
->name
, name
)) {
816 ds_put_lacp_state(struct ds
*ds
, uint8_t state
)
818 if (state
& LACP_STATE_ACT
) {
819 ds_put_cstr(ds
, " activity");
822 if (state
& LACP_STATE_TIME
) {
823 ds_put_cstr(ds
, " timeout");
826 if (state
& LACP_STATE_AGG
) {
827 ds_put_cstr(ds
, " aggregation");
830 if (state
& LACP_STATE_SYNC
) {
831 ds_put_cstr(ds
, " synchronized");
834 if (state
& LACP_STATE_COL
) {
835 ds_put_cstr(ds
, " collecting");
838 if (state
& LACP_STATE_DIST
) {
839 ds_put_cstr(ds
, " distributing");
842 if (state
& LACP_STATE_DEF
) {
843 ds_put_cstr(ds
, " defaulted");
846 if (state
& LACP_STATE_EXP
) {
847 ds_put_cstr(ds
, " expired");
852 lacp_print_details(struct ds
*ds
, struct lacp
*lacp
) OVS_REQUIRES(mutex
)
854 struct shash slave_shash
= SHASH_INITIALIZER(&slave_shash
);
855 const struct shash_node
**sorted_slaves
= NULL
;
860 ds_put_format(ds
, "---- %s ----\n", lacp
->name
);
861 ds_put_format(ds
, "\tstatus: %s", lacp
->active
? "active" : "passive");
862 if (lacp
->negotiated
) {
863 ds_put_cstr(ds
, " negotiated");
865 ds_put_cstr(ds
, "\n");
867 ds_put_format(ds
, "\tsys_id: " ETH_ADDR_FMT
"\n", ETH_ADDR_ARGS(lacp
->sys_id
));
868 ds_put_format(ds
, "\tsys_priority: %u\n", lacp
->sys_priority
);
869 ds_put_cstr(ds
, "\taggregation key: ");
870 if (lacp
->key_slave
) {
871 ds_put_format(ds
, "%u", lacp
->key_slave
->key
872 ? lacp
->key_slave
->key
873 : lacp
->key_slave
->port_id
);
875 ds_put_cstr(ds
, "none");
877 ds_put_cstr(ds
, "\n");
879 ds_put_cstr(ds
, "\tlacp_time: ");
881 ds_put_cstr(ds
, "fast\n");
883 ds_put_cstr(ds
, "slow\n");
886 HMAP_FOR_EACH (slave
, node
, &lacp
->slaves
) {
887 shash_add(&slave_shash
, slave
->name
, slave
);
889 sorted_slaves
= shash_sort(&slave_shash
);
891 for (i
= 0; i
< shash_count(&slave_shash
); i
++) {
893 struct lacp_info actor
;
895 slave
= sorted_slaves
[i
]->data
;
896 slave_get_actor(slave
, &actor
);
897 switch (slave
->status
) {
905 status
= "defaulted";
911 ds_put_format(ds
, "\nslave: %s: %s %s\n", slave
->name
, status
,
912 slave
->attached
? "attached" : "detached");
913 ds_put_format(ds
, "\tport_id: %u\n", slave
->port_id
);
914 ds_put_format(ds
, "\tport_priority: %u\n", slave
->port_priority
);
915 ds_put_format(ds
, "\tmay_enable: %s\n", (slave_may_enable__(slave
)
916 ? "true" : "false"));
918 ds_put_format(ds
, "\n\tactor sys_id: " ETH_ADDR_FMT
"\n",
919 ETH_ADDR_ARGS(actor
.sys_id
));
920 ds_put_format(ds
, "\tactor sys_priority: %u\n",
921 ntohs(actor
.sys_priority
));
922 ds_put_format(ds
, "\tactor port_id: %u\n",
923 ntohs(actor
.port_id
));
924 ds_put_format(ds
, "\tactor port_priority: %u\n",
925 ntohs(actor
.port_priority
));
926 ds_put_format(ds
, "\tactor key: %u\n",
928 ds_put_cstr(ds
, "\tactor state:");
929 ds_put_lacp_state(ds
, actor
.state
);
930 ds_put_cstr(ds
, "\n\n");
932 ds_put_format(ds
, "\tpartner sys_id: " ETH_ADDR_FMT
"\n",
933 ETH_ADDR_ARGS(slave
->partner
.sys_id
));
934 ds_put_format(ds
, "\tpartner sys_priority: %u\n",
935 ntohs(slave
->partner
.sys_priority
));
936 ds_put_format(ds
, "\tpartner port_id: %u\n",
937 ntohs(slave
->partner
.port_id
));
938 ds_put_format(ds
, "\tpartner port_priority: %u\n",
939 ntohs(slave
->partner
.port_priority
));
940 ds_put_format(ds
, "\tpartner key: %u\n",
941 ntohs(slave
->partner
.key
));
942 ds_put_cstr(ds
, "\tpartner state:");
943 ds_put_lacp_state(ds
, slave
->partner
.state
);
944 ds_put_cstr(ds
, "\n");
947 shash_destroy(&slave_shash
);
952 lacp_unixctl_show(struct unixctl_conn
*conn
, int argc
, const char *argv
[],
953 void *aux OVS_UNUSED
) OVS_EXCLUDED(mutex
)
955 struct ds ds
= DS_EMPTY_INITIALIZER
;
958 ovs_mutex_lock(&mutex
);
960 lacp
= lacp_find(argv
[1]);
962 unixctl_command_reply_error(conn
, "no such lacp object");
965 lacp_print_details(&ds
, lacp
);
967 LIST_FOR_EACH (lacp
, node
, all_lacps
) {
968 lacp_print_details(&ds
, lacp
);
972 unixctl_command_reply(conn
, ds_cstr(&ds
));
976 ovs_mutex_unlock(&mutex
);