2 * Zebra dataplane layer.
3 * Copyright (c) 2018 Volta Networks, Inc.
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License for more details.
15 * You should have received a copy of the GNU General Public License along
16 * with this program; see the file COPYING; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
24 #include "lib/libfrr.h"
25 #include "lib/debug.h"
26 #include "lib/frratomic.h"
27 #include "lib/frr_pthread.h"
28 #include "lib/memory.h"
29 #include "lib/queue.h"
30 #include "lib/zebra.h"
31 #include "zebra/zebra_router.h"
32 #include "zebra/zebra_memory.h"
33 #include "zebra/zebra_router.h"
34 #include "zebra/zebra_dplane.h"
36 #include "zebra/debug.h"
38 /* Memory type for context blocks */
39 DEFINE_MTYPE_STATIC(ZEBRA
, DP_CTX
, "Zebra DPlane Ctx")
40 DEFINE_MTYPE_STATIC(ZEBRA
, DP_PROV
, "Zebra DPlane Provider")
46 /* Enable test dataplane provider */
47 /*#define DPLANE_TEST_PROVIDER 1 */
49 /* Default value for max queued incoming updates */
50 const uint32_t DPLANE_DEFAULT_MAX_QUEUED
= 200;
52 /* Default value for new work per cycle */
53 const uint32_t DPLANE_DEFAULT_NEW_WORK
= 100;
55 /* Validation check macro for context blocks */
56 /* #define DPLANE_DEBUG 1 */
60 # define DPLANE_CTX_VALID(p) \
65 # define DPLANE_CTX_VALID(p)
67 #endif /* DPLANE_DEBUG */
70 * Nexthop information captured for nexthop/nexthop group updates
72 struct dplane_nexthop_info
{
78 struct nexthop_group ng
;
79 struct nh_grp nh_grp
[MULTIPATH_NUM
];
84 * Route information captured for route updates.
86 struct dplane_route_info
{
88 /* Dest and (optional) source prefixes */
89 struct prefix zd_dest
;
99 route_tag_t zd_old_tag
;
101 uint32_t zd_old_metric
;
103 uint16_t zd_instance
;
104 uint16_t zd_old_instance
;
107 uint8_t zd_old_distance
;
110 uint32_t zd_nexthop_mtu
;
112 /* Nexthop hash entry info */
113 struct dplane_nexthop_info nhe
;
116 struct nexthop_group zd_ng
;
118 /* "Previous" nexthops, used only in route updates without netlink */
119 struct nexthop_group zd_old_ng
;
121 /* TODO -- use fixed array of nexthops, to avoid mallocs? */
126 * Pseudowire info for the dataplane
128 struct dplane_pw_info
{
134 mpls_label_t local_label
;
135 mpls_label_t remote_label
;
138 struct nexthop_group nhg
;
140 union pw_protocol_fields fields
;
144 * Interface/prefix info for the dataplane
146 struct dplane_intf_info
{
151 #define DPLANE_INTF_CONNECTED (1 << 0) /* Connected peer, p2p */
152 #define DPLANE_INTF_SECONDARY (1 << 1)
153 #define DPLANE_INTF_BROADCAST (1 << 2)
154 #define DPLANE_INTF_HAS_DEST DPLANE_INTF_CONNECTED
155 #define DPLANE_INTF_HAS_LABEL (1 << 4)
157 /* Interface address/prefix */
158 struct prefix prefix
;
160 /* Dest address, for p2p, or broadcast prefix */
161 struct prefix dest_prefix
;
168 * EVPN MAC address info for the dataplane.
170 struct dplane_mac_info
{
172 ifindex_t br_ifindex
;
174 struct in_addr vtep_ip
;
180 * EVPN neighbor info for the dataplane
182 struct dplane_neigh_info
{
183 struct ipaddr ip_addr
;
190 * The context block used to exchange info about route updates across
191 * the boundary between the zebra main context (and pthread) and the
192 * dataplane layer (and pthread).
194 struct zebra_dplane_ctx
{
197 enum dplane_op_e zd_op
;
199 /* Status on return */
200 enum zebra_dplane_result zd_status
;
202 /* Dplane provider id */
203 uint32_t zd_provider
;
205 /* Flags - used by providers, e.g. */
213 /* Some updates may be generated by notifications: allow the
214 * plugin to notice and ignore results from its own notifications.
216 uint32_t zd_notif_provider
;
218 /* TODO -- internal/sub-operation status? */
219 enum zebra_dplane_result zd_remote_status
;
220 enum zebra_dplane_result zd_kernel_status
;
223 uint32_t zd_table_id
;
225 char zd_ifname
[INTERFACE_NAMSIZ
];
226 ifindex_t zd_ifindex
;
228 /* Support info for different kinds of updates */
230 struct dplane_route_info rinfo
;
232 struct dplane_pw_info pw
;
233 struct dplane_intf_info intf
;
234 struct dplane_mac_info macinfo
;
235 struct dplane_neigh_info neigh
;
238 /* Namespace info, used especially for netlink kernel communication */
239 struct zebra_dplane_info zd_ns_info
;
241 /* Embedded list linkage */
242 TAILQ_ENTRY(zebra_dplane_ctx
) zd_q_entries
;
245 /* Flag that can be set by a pre-kernel provider as a signal that an update
246 * should bypass the kernel.
248 #define DPLANE_CTX_FLAG_NO_KERNEL 0x01
252 * Registration block for one dataplane provider.
254 struct zebra_dplane_provider
{
256 char dp_name
[DPLANE_PROVIDER_NAMELEN
+ 1];
258 /* Priority, for ordering among providers */
265 pthread_mutex_t dp_mutex
;
267 /* Plugin-provided extra data */
273 int (*dp_start
)(struct zebra_dplane_provider
*prov
);
275 int (*dp_fp
)(struct zebra_dplane_provider
*prov
);
277 int (*dp_fini
)(struct zebra_dplane_provider
*prov
, bool early_p
);
279 _Atomic
uint32_t dp_in_counter
;
280 _Atomic
uint32_t dp_in_queued
;
281 _Atomic
uint32_t dp_in_max
;
282 _Atomic
uint32_t dp_out_counter
;
283 _Atomic
uint32_t dp_out_queued
;
284 _Atomic
uint32_t dp_out_max
;
285 _Atomic
uint32_t dp_error_counter
;
287 /* Queue of contexts inbound to the provider */
288 struct dplane_ctx_q dp_ctx_in_q
;
290 /* Queue of completed contexts outbound from the provider back
291 * towards the dataplane module.
293 struct dplane_ctx_q dp_ctx_out_q
;
295 /* Embedded list linkage for provider objects */
296 TAILQ_ENTRY(zebra_dplane_provider
) dp_prov_link
;
302 static struct zebra_dplane_globals
{
303 /* Mutex to control access to dataplane components */
304 pthread_mutex_t dg_mutex
;
306 /* Results callback registered by zebra 'core' */
307 int (*dg_results_cb
)(struct dplane_ctx_q
*ctxlist
);
309 /* Sentinel for beginning of shutdown */
310 volatile bool dg_is_shutdown
;
312 /* Sentinel for end of shutdown */
313 volatile bool dg_run
;
315 /* Update context queue inbound to the dataplane */
316 TAILQ_HEAD(zdg_ctx_q
, zebra_dplane_ctx
) dg_update_ctx_q
;
318 /* Ordered list of providers */
319 TAILQ_HEAD(zdg_prov_q
, zebra_dplane_provider
) dg_providers_q
;
321 /* Counter used to assign internal ids to providers */
322 uint32_t dg_provider_id
;
324 /* Limit number of pending, unprocessed updates */
325 _Atomic
uint32_t dg_max_queued_updates
;
327 /* Control whether system route notifications should be produced. */
328 bool dg_sys_route_notifs
;
330 /* Limit number of new updates dequeued at once, to pace an
333 uint32_t dg_updates_per_cycle
;
335 _Atomic
uint32_t dg_routes_in
;
336 _Atomic
uint32_t dg_routes_queued
;
337 _Atomic
uint32_t dg_routes_queued_max
;
338 _Atomic
uint32_t dg_route_errors
;
339 _Atomic
uint32_t dg_other_errors
;
341 _Atomic
uint32_t dg_nexthops_in
;
342 _Atomic
uint32_t dg_nexthop_errors
;
344 _Atomic
uint32_t dg_lsps_in
;
345 _Atomic
uint32_t dg_lsp_errors
;
347 _Atomic
uint32_t dg_pws_in
;
348 _Atomic
uint32_t dg_pw_errors
;
350 _Atomic
uint32_t dg_intf_addrs_in
;
351 _Atomic
uint32_t dg_intf_addr_errors
;
353 _Atomic
uint32_t dg_macs_in
;
354 _Atomic
uint32_t dg_mac_errors
;
356 _Atomic
uint32_t dg_neighs_in
;
357 _Atomic
uint32_t dg_neigh_errors
;
359 _Atomic
uint32_t dg_update_yields
;
361 /* Dataplane pthread */
362 struct frr_pthread
*dg_pthread
;
364 /* Event-delivery context 'master' for the dplane */
365 struct thread_master
*dg_master
;
367 /* Event/'thread' pointer for queued updates */
368 struct thread
*dg_t_update
;
370 /* Event pointer for pending shutdown check loop */
371 struct thread
*dg_t_shutdown_check
;
376 * Lock and unlock for interactions with the zebra 'core' pthread
378 #define DPLANE_LOCK() pthread_mutex_lock(&zdplane_info.dg_mutex)
379 #define DPLANE_UNLOCK() pthread_mutex_unlock(&zdplane_info.dg_mutex)
383 * Lock and unlock for individual providers
385 #define DPLANE_PROV_LOCK(p) pthread_mutex_lock(&((p)->dp_mutex))
386 #define DPLANE_PROV_UNLOCK(p) pthread_mutex_unlock(&((p)->dp_mutex))
389 static int dplane_thread_loop(struct thread
*event
);
390 static void dplane_info_from_zns(struct zebra_dplane_info
*ns_info
,
391 struct zebra_ns
*zns
);
392 static enum zebra_dplane_result
lsp_update_internal(zebra_lsp_t
*lsp
,
393 enum dplane_op_e op
);
394 static enum zebra_dplane_result
pw_update_internal(struct zebra_pw
*pw
,
395 enum dplane_op_e op
);
396 static enum zebra_dplane_result
intf_addr_update_internal(
397 const struct interface
*ifp
, const struct connected
*ifc
,
398 enum dplane_op_e op
);
399 static enum zebra_dplane_result
mac_update_internal(
400 enum dplane_op_e op
, const struct interface
*ifp
,
401 const struct interface
*br_ifp
,
402 vlanid_t vid
, const struct ethaddr
*mac
,
403 struct in_addr vtep_ip
, bool sticky
);
404 static enum zebra_dplane_result
neigh_update_internal(
406 const struct interface
*ifp
,
407 const struct ethaddr
*mac
,
408 const struct ipaddr
*ip
,
409 uint32_t flags
, uint16_t state
);
415 /* Obtain thread_master for dataplane thread */
416 struct thread_master
*dplane_get_thread_master(void)
418 return zdplane_info
.dg_master
;
422 * Allocate a dataplane update context
424 struct zebra_dplane_ctx
*dplane_ctx_alloc(void)
426 struct zebra_dplane_ctx
*p
;
428 /* TODO -- just alloc'ing memory, but would like to maintain
431 p
= XCALLOC(MTYPE_DP_CTX
, sizeof(struct zebra_dplane_ctx
));
436 /* Enable system route notifications */
437 void dplane_enable_sys_route_notifs(void)
439 zdplane_info
.dg_sys_route_notifs
= true;
443 * Free a dataplane results context.
445 static void dplane_ctx_free(struct zebra_dplane_ctx
**pctx
)
450 DPLANE_CTX_VALID(*pctx
);
452 /* TODO -- just freeing memory, but would like to maintain
456 /* Some internal allocations may need to be freed, depending on
457 * the type of info captured in the ctx.
459 switch ((*pctx
)->zd_op
) {
460 case DPLANE_OP_ROUTE_INSTALL
:
461 case DPLANE_OP_ROUTE_UPDATE
:
462 case DPLANE_OP_ROUTE_DELETE
:
463 case DPLANE_OP_SYS_ROUTE_ADD
:
464 case DPLANE_OP_SYS_ROUTE_DELETE
:
465 case DPLANE_OP_ROUTE_NOTIFY
:
467 /* Free allocated nexthops */
468 if ((*pctx
)->u
.rinfo
.zd_ng
.nexthop
) {
469 /* This deals with recursive nexthops too */
470 nexthops_free((*pctx
)->u
.rinfo
.zd_ng
.nexthop
);
472 (*pctx
)->u
.rinfo
.zd_ng
.nexthop
= NULL
;
475 if ((*pctx
)->u
.rinfo
.zd_old_ng
.nexthop
) {
476 /* This deals with recursive nexthops too */
477 nexthops_free((*pctx
)->u
.rinfo
.zd_old_ng
.nexthop
);
479 (*pctx
)->u
.rinfo
.zd_old_ng
.nexthop
= NULL
;
484 case DPLANE_OP_NH_INSTALL
:
485 case DPLANE_OP_NH_UPDATE
:
486 case DPLANE_OP_NH_DELETE
: {
487 if ((*pctx
)->u
.rinfo
.nhe
.ng
.nexthop
) {
488 /* This deals with recursive nexthops too */
489 nexthops_free((*pctx
)->u
.rinfo
.nhe
.ng
.nexthop
);
491 (*pctx
)->u
.rinfo
.nhe
.ng
.nexthop
= NULL
;
496 case DPLANE_OP_LSP_INSTALL
:
497 case DPLANE_OP_LSP_UPDATE
:
498 case DPLANE_OP_LSP_DELETE
:
499 case DPLANE_OP_LSP_NOTIFY
:
501 zebra_nhlfe_t
*nhlfe
, *next
;
503 /* Free allocated NHLFEs */
504 for (nhlfe
= (*pctx
)->u
.lsp
.nhlfe_list
; nhlfe
; nhlfe
= next
) {
507 zebra_mpls_nhlfe_del(nhlfe
);
510 /* Clear pointers in lsp struct, in case we're cacheing
511 * free context structs.
513 (*pctx
)->u
.lsp
.nhlfe_list
= NULL
;
514 (*pctx
)->u
.lsp
.best_nhlfe
= NULL
;
519 case DPLANE_OP_PW_INSTALL
:
520 case DPLANE_OP_PW_UNINSTALL
:
521 /* Free allocated nexthops */
522 if ((*pctx
)->u
.pw
.nhg
.nexthop
) {
523 /* This deals with recursive nexthops too */
524 nexthops_free((*pctx
)->u
.pw
.nhg
.nexthop
);
526 (*pctx
)->u
.pw
.nhg
.nexthop
= NULL
;
530 case DPLANE_OP_ADDR_INSTALL
:
531 case DPLANE_OP_ADDR_UNINSTALL
:
532 /* Maybe free label string, if allocated */
533 if ((*pctx
)->u
.intf
.label
!= NULL
&&
534 (*pctx
)->u
.intf
.label
!= (*pctx
)->u
.intf
.label_buf
) {
535 free((*pctx
)->u
.intf
.label
);
536 (*pctx
)->u
.intf
.label
= NULL
;
540 case DPLANE_OP_MAC_INSTALL
:
541 case DPLANE_OP_MAC_DELETE
:
542 case DPLANE_OP_NEIGH_INSTALL
:
543 case DPLANE_OP_NEIGH_UPDATE
:
544 case DPLANE_OP_NEIGH_DELETE
:
545 case DPLANE_OP_VTEP_ADD
:
546 case DPLANE_OP_VTEP_DELETE
:
551 XFREE(MTYPE_DP_CTX
, *pctx
);
555 * Return a context block to the dplane module after processing
557 void dplane_ctx_fini(struct zebra_dplane_ctx
**pctx
)
559 /* TODO -- maintain pool; for now, just free */
560 dplane_ctx_free(pctx
);
563 /* Enqueue a context block */
564 void dplane_ctx_enqueue_tail(struct dplane_ctx_q
*q
,
565 const struct zebra_dplane_ctx
*ctx
)
567 TAILQ_INSERT_TAIL(q
, (struct zebra_dplane_ctx
*)ctx
, zd_q_entries
);
570 /* Append a list of context blocks to another list */
571 void dplane_ctx_list_append(struct dplane_ctx_q
*to_list
,
572 struct dplane_ctx_q
*from_list
)
574 if (TAILQ_FIRST(from_list
)) {
575 TAILQ_CONCAT(to_list
, from_list
, zd_q_entries
);
577 /* And clear 'from' list */
578 TAILQ_INIT(from_list
);
582 /* Dequeue a context block from the head of a list */
583 struct zebra_dplane_ctx
*dplane_ctx_dequeue(struct dplane_ctx_q
*q
)
585 struct zebra_dplane_ctx
*ctx
= TAILQ_FIRST(q
);
588 TAILQ_REMOVE(q
, ctx
, zd_q_entries
);
594 * Accessors for information from the context object
596 enum zebra_dplane_result
dplane_ctx_get_status(
597 const struct zebra_dplane_ctx
*ctx
)
599 DPLANE_CTX_VALID(ctx
);
601 return ctx
->zd_status
;
604 void dplane_ctx_set_status(struct zebra_dplane_ctx
*ctx
,
605 enum zebra_dplane_result status
)
607 DPLANE_CTX_VALID(ctx
);
609 ctx
->zd_status
= status
;
612 /* Retrieve last/current provider id */
613 uint32_t dplane_ctx_get_provider(const struct zebra_dplane_ctx
*ctx
)
615 DPLANE_CTX_VALID(ctx
);
616 return ctx
->zd_provider
;
619 /* Providers run before the kernel can control whether a kernel
620 * update should be done.
622 void dplane_ctx_set_skip_kernel(struct zebra_dplane_ctx
*ctx
)
624 DPLANE_CTX_VALID(ctx
);
626 SET_FLAG(ctx
->zd_flags
, DPLANE_CTX_FLAG_NO_KERNEL
);
629 bool dplane_ctx_is_skip_kernel(const struct zebra_dplane_ctx
*ctx
)
631 DPLANE_CTX_VALID(ctx
);
633 return CHECK_FLAG(ctx
->zd_flags
, DPLANE_CTX_FLAG_NO_KERNEL
);
636 void dplane_ctx_set_op(struct zebra_dplane_ctx
*ctx
, enum dplane_op_e op
)
638 DPLANE_CTX_VALID(ctx
);
642 enum dplane_op_e
dplane_ctx_get_op(const struct zebra_dplane_ctx
*ctx
)
644 DPLANE_CTX_VALID(ctx
);
649 const char *dplane_op2str(enum dplane_op_e op
)
651 const char *ret
= "UNKNOWN";
659 case DPLANE_OP_ROUTE_INSTALL
:
660 ret
= "ROUTE_INSTALL";
662 case DPLANE_OP_ROUTE_UPDATE
:
663 ret
= "ROUTE_UPDATE";
665 case DPLANE_OP_ROUTE_DELETE
:
666 ret
= "ROUTE_DELETE";
668 case DPLANE_OP_ROUTE_NOTIFY
:
669 ret
= "ROUTE_NOTIFY";
673 case DPLANE_OP_NH_INSTALL
:
676 case DPLANE_OP_NH_UPDATE
:
679 case DPLANE_OP_NH_DELETE
:
683 case DPLANE_OP_LSP_INSTALL
:
686 case DPLANE_OP_LSP_UPDATE
:
689 case DPLANE_OP_LSP_DELETE
:
692 case DPLANE_OP_LSP_NOTIFY
:
696 case DPLANE_OP_PW_INSTALL
:
699 case DPLANE_OP_PW_UNINSTALL
:
700 ret
= "PW_UNINSTALL";
703 case DPLANE_OP_SYS_ROUTE_ADD
:
704 ret
= "SYS_ROUTE_ADD";
706 case DPLANE_OP_SYS_ROUTE_DELETE
:
707 ret
= "SYS_ROUTE_DEL";
710 case DPLANE_OP_ADDR_INSTALL
:
711 ret
= "ADDR_INSTALL";
713 case DPLANE_OP_ADDR_UNINSTALL
:
714 ret
= "ADDR_UNINSTALL";
717 case DPLANE_OP_MAC_INSTALL
:
720 case DPLANE_OP_MAC_DELETE
:
724 case DPLANE_OP_NEIGH_INSTALL
:
725 ret
= "NEIGH_INSTALL";
727 case DPLANE_OP_NEIGH_UPDATE
:
728 ret
= "NEIGH_UPDATE";
730 case DPLANE_OP_NEIGH_DELETE
:
731 ret
= "NEIGH_DELETE";
733 case DPLANE_OP_VTEP_ADD
:
736 case DPLANE_OP_VTEP_DELETE
:
744 const char *dplane_res2str(enum zebra_dplane_result res
)
746 const char *ret
= "<Unknown>";
749 case ZEBRA_DPLANE_REQUEST_FAILURE
:
752 case ZEBRA_DPLANE_REQUEST_QUEUED
:
755 case ZEBRA_DPLANE_REQUEST_SUCCESS
:
763 void dplane_ctx_set_dest(struct zebra_dplane_ctx
*ctx
,
764 const struct prefix
*dest
)
766 DPLANE_CTX_VALID(ctx
);
768 prefix_copy(&(ctx
->u
.rinfo
.zd_dest
), dest
);
771 const struct prefix
*dplane_ctx_get_dest(const struct zebra_dplane_ctx
*ctx
)
773 DPLANE_CTX_VALID(ctx
);
775 return &(ctx
->u
.rinfo
.zd_dest
);
778 void dplane_ctx_set_src(struct zebra_dplane_ctx
*ctx
, const struct prefix
*src
)
780 DPLANE_CTX_VALID(ctx
);
783 prefix_copy(&(ctx
->u
.rinfo
.zd_src
), src
);
785 memset(&(ctx
->u
.rinfo
.zd_src
), 0, sizeof(struct prefix
));
788 /* Source prefix is a little special - return NULL for "no src prefix" */
789 const struct prefix
*dplane_ctx_get_src(const struct zebra_dplane_ctx
*ctx
)
791 DPLANE_CTX_VALID(ctx
);
793 if (ctx
->u
.rinfo
.zd_src
.prefixlen
== 0 &&
794 IN6_IS_ADDR_UNSPECIFIED(&(ctx
->u
.rinfo
.zd_src
.u
.prefix6
))) {
797 return &(ctx
->u
.rinfo
.zd_src
);
801 bool dplane_ctx_is_update(const struct zebra_dplane_ctx
*ctx
)
803 DPLANE_CTX_VALID(ctx
);
805 return ctx
->zd_is_update
;
808 uint32_t dplane_ctx_get_seq(const struct zebra_dplane_ctx
*ctx
)
810 DPLANE_CTX_VALID(ctx
);
815 uint32_t dplane_ctx_get_old_seq(const struct zebra_dplane_ctx
*ctx
)
817 DPLANE_CTX_VALID(ctx
);
819 return ctx
->zd_old_seq
;
822 void dplane_ctx_set_vrf(struct zebra_dplane_ctx
*ctx
, vrf_id_t vrf
)
824 DPLANE_CTX_VALID(ctx
);
826 ctx
->zd_vrf_id
= vrf
;
829 vrf_id_t
dplane_ctx_get_vrf(const struct zebra_dplane_ctx
*ctx
)
831 DPLANE_CTX_VALID(ctx
);
833 return ctx
->zd_vrf_id
;
836 bool dplane_ctx_is_from_notif(const struct zebra_dplane_ctx
*ctx
)
838 DPLANE_CTX_VALID(ctx
);
840 return (ctx
->zd_notif_provider
!= 0);
843 uint32_t dplane_ctx_get_notif_provider(const struct zebra_dplane_ctx
*ctx
)
845 DPLANE_CTX_VALID(ctx
);
847 return ctx
->zd_notif_provider
;
850 void dplane_ctx_set_notif_provider(struct zebra_dplane_ctx
*ctx
,
853 DPLANE_CTX_VALID(ctx
);
855 ctx
->zd_notif_provider
= id
;
857 const char *dplane_ctx_get_ifname(const struct zebra_dplane_ctx
*ctx
)
859 DPLANE_CTX_VALID(ctx
);
861 return ctx
->zd_ifname
;
864 ifindex_t
dplane_ctx_get_ifindex(const struct zebra_dplane_ctx
*ctx
)
866 DPLANE_CTX_VALID(ctx
);
868 return ctx
->zd_ifindex
;
871 void dplane_ctx_set_type(struct zebra_dplane_ctx
*ctx
, int type
)
873 DPLANE_CTX_VALID(ctx
);
875 ctx
->u
.rinfo
.zd_type
= type
;
878 int dplane_ctx_get_type(const struct zebra_dplane_ctx
*ctx
)
880 DPLANE_CTX_VALID(ctx
);
882 return ctx
->u
.rinfo
.zd_type
;
885 int dplane_ctx_get_old_type(const struct zebra_dplane_ctx
*ctx
)
887 DPLANE_CTX_VALID(ctx
);
889 return ctx
->u
.rinfo
.zd_old_type
;
892 void dplane_ctx_set_afi(struct zebra_dplane_ctx
*ctx
, afi_t afi
)
894 DPLANE_CTX_VALID(ctx
);
896 ctx
->u
.rinfo
.zd_afi
= afi
;
899 afi_t
dplane_ctx_get_afi(const struct zebra_dplane_ctx
*ctx
)
901 DPLANE_CTX_VALID(ctx
);
903 return ctx
->u
.rinfo
.zd_afi
;
906 void dplane_ctx_set_safi(struct zebra_dplane_ctx
*ctx
, safi_t safi
)
908 DPLANE_CTX_VALID(ctx
);
910 ctx
->u
.rinfo
.zd_safi
= safi
;
913 safi_t
dplane_ctx_get_safi(const struct zebra_dplane_ctx
*ctx
)
915 DPLANE_CTX_VALID(ctx
);
917 return ctx
->u
.rinfo
.zd_safi
;
920 void dplane_ctx_set_table(struct zebra_dplane_ctx
*ctx
, uint32_t table
)
922 DPLANE_CTX_VALID(ctx
);
924 ctx
->zd_table_id
= table
;
927 uint32_t dplane_ctx_get_table(const struct zebra_dplane_ctx
*ctx
)
929 DPLANE_CTX_VALID(ctx
);
931 return ctx
->zd_table_id
;
934 route_tag_t
dplane_ctx_get_tag(const struct zebra_dplane_ctx
*ctx
)
936 DPLANE_CTX_VALID(ctx
);
938 return ctx
->u
.rinfo
.zd_tag
;
941 void dplane_ctx_set_tag(struct zebra_dplane_ctx
*ctx
, route_tag_t tag
)
943 DPLANE_CTX_VALID(ctx
);
945 ctx
->u
.rinfo
.zd_tag
= tag
;
948 route_tag_t
dplane_ctx_get_old_tag(const struct zebra_dplane_ctx
*ctx
)
950 DPLANE_CTX_VALID(ctx
);
952 return ctx
->u
.rinfo
.zd_old_tag
;
955 uint16_t dplane_ctx_get_instance(const struct zebra_dplane_ctx
*ctx
)
957 DPLANE_CTX_VALID(ctx
);
959 return ctx
->u
.rinfo
.zd_instance
;
962 void dplane_ctx_set_instance(struct zebra_dplane_ctx
*ctx
, uint16_t instance
)
964 DPLANE_CTX_VALID(ctx
);
966 ctx
->u
.rinfo
.zd_instance
= instance
;
969 uint16_t dplane_ctx_get_old_instance(const struct zebra_dplane_ctx
*ctx
)
971 DPLANE_CTX_VALID(ctx
);
973 return ctx
->u
.rinfo
.zd_old_instance
;
976 uint32_t dplane_ctx_get_metric(const struct zebra_dplane_ctx
*ctx
)
978 DPLANE_CTX_VALID(ctx
);
980 return ctx
->u
.rinfo
.zd_metric
;
983 uint32_t dplane_ctx_get_old_metric(const struct zebra_dplane_ctx
*ctx
)
985 DPLANE_CTX_VALID(ctx
);
987 return ctx
->u
.rinfo
.zd_old_metric
;
990 uint32_t dplane_ctx_get_mtu(const struct zebra_dplane_ctx
*ctx
)
992 DPLANE_CTX_VALID(ctx
);
994 return ctx
->u
.rinfo
.zd_mtu
;
997 uint32_t dplane_ctx_get_nh_mtu(const struct zebra_dplane_ctx
*ctx
)
999 DPLANE_CTX_VALID(ctx
);
1001 return ctx
->u
.rinfo
.zd_nexthop_mtu
;
1004 uint8_t dplane_ctx_get_distance(const struct zebra_dplane_ctx
*ctx
)
1006 DPLANE_CTX_VALID(ctx
);
1008 return ctx
->u
.rinfo
.zd_distance
;
1011 void dplane_ctx_set_distance(struct zebra_dplane_ctx
*ctx
, uint8_t distance
)
1013 DPLANE_CTX_VALID(ctx
);
1015 ctx
->u
.rinfo
.zd_distance
= distance
;
1018 uint8_t dplane_ctx_get_old_distance(const struct zebra_dplane_ctx
*ctx
)
1020 DPLANE_CTX_VALID(ctx
);
1022 return ctx
->u
.rinfo
.zd_old_distance
;
1026 * Set the nexthops associated with a context: note that processing code
1027 * may well expect that nexthops are in canonical (sorted) order, so we
1028 * will enforce that here.
1030 void dplane_ctx_set_nexthops(struct zebra_dplane_ctx
*ctx
, struct nexthop
*nh
)
1032 DPLANE_CTX_VALID(ctx
);
1034 if (ctx
->u
.rinfo
.zd_ng
.nexthop
) {
1035 nexthops_free(ctx
->u
.rinfo
.zd_ng
.nexthop
);
1036 ctx
->u
.rinfo
.zd_ng
.nexthop
= NULL
;
1038 nexthop_group_copy_nh_sorted(&(ctx
->u
.rinfo
.zd_ng
), nh
);
1041 const struct nexthop_group
*dplane_ctx_get_ng(
1042 const struct zebra_dplane_ctx
*ctx
)
1044 DPLANE_CTX_VALID(ctx
);
1046 return &(ctx
->u
.rinfo
.zd_ng
);
1049 const struct nexthop_group
*dplane_ctx_get_old_ng(
1050 const struct zebra_dplane_ctx
*ctx
)
1052 DPLANE_CTX_VALID(ctx
);
1054 return &(ctx
->u
.rinfo
.zd_old_ng
);
1057 const struct zebra_dplane_info
*dplane_ctx_get_ns(
1058 const struct zebra_dplane_ctx
*ctx
)
1060 DPLANE_CTX_VALID(ctx
);
1062 return &(ctx
->zd_ns_info
);
1065 /* Accessors for nexthop information */
1066 uint32_t dplane_ctx_get_nhe_id(const struct zebra_dplane_ctx
*ctx
)
1068 DPLANE_CTX_VALID(ctx
);
1069 return ctx
->u
.rinfo
.nhe
.id
;
1072 afi_t
dplane_ctx_get_nhe_afi(const struct zebra_dplane_ctx
*ctx
)
1074 DPLANE_CTX_VALID(ctx
);
1075 return ctx
->u
.rinfo
.nhe
.afi
;
1078 vrf_id_t
dplane_ctx_get_nhe_vrf_id(const struct zebra_dplane_ctx
*ctx
)
1080 DPLANE_CTX_VALID(ctx
);
1081 return ctx
->u
.rinfo
.nhe
.vrf_id
;
1084 int dplane_ctx_get_nhe_type(const struct zebra_dplane_ctx
*ctx
)
1086 DPLANE_CTX_VALID(ctx
);
1087 return ctx
->u
.rinfo
.nhe
.type
;
1090 const struct nexthop_group
*
1091 dplane_ctx_get_nhe_ng(const struct zebra_dplane_ctx
*ctx
)
1093 DPLANE_CTX_VALID(ctx
);
1094 return &(ctx
->u
.rinfo
.nhe
.ng
);
1097 const struct nh_grp
*
1098 dplane_ctx_get_nhe_nh_grp(const struct zebra_dplane_ctx
*ctx
)
1100 DPLANE_CTX_VALID(ctx
);
1101 return ctx
->u
.rinfo
.nhe
.nh_grp
;
1104 uint8_t dplane_ctx_get_nhe_nh_grp_count(const struct zebra_dplane_ctx
*ctx
)
1106 DPLANE_CTX_VALID(ctx
);
1107 return ctx
->u
.rinfo
.nhe
.nh_grp_count
;
1110 /* Accessors for LSP information */
1112 mpls_label_t
dplane_ctx_get_in_label(const struct zebra_dplane_ctx
*ctx
)
1114 DPLANE_CTX_VALID(ctx
);
1116 return ctx
->u
.lsp
.ile
.in_label
;
1119 void dplane_ctx_set_in_label(struct zebra_dplane_ctx
*ctx
, mpls_label_t label
)
1121 DPLANE_CTX_VALID(ctx
);
1123 ctx
->u
.lsp
.ile
.in_label
= label
;
1126 uint8_t dplane_ctx_get_addr_family(const struct zebra_dplane_ctx
*ctx
)
1128 DPLANE_CTX_VALID(ctx
);
1130 return ctx
->u
.lsp
.addr_family
;
1133 void dplane_ctx_set_addr_family(struct zebra_dplane_ctx
*ctx
,
1136 DPLANE_CTX_VALID(ctx
);
1138 ctx
->u
.lsp
.addr_family
= family
;
1141 uint32_t dplane_ctx_get_lsp_flags(const struct zebra_dplane_ctx
*ctx
)
1143 DPLANE_CTX_VALID(ctx
);
1145 return ctx
->u
.lsp
.flags
;
1148 void dplane_ctx_set_lsp_flags(struct zebra_dplane_ctx
*ctx
,
1151 DPLANE_CTX_VALID(ctx
);
1153 ctx
->u
.lsp
.flags
= flags
;
1156 const zebra_nhlfe_t
*dplane_ctx_get_nhlfe(const struct zebra_dplane_ctx
*ctx
)
1158 DPLANE_CTX_VALID(ctx
);
1160 return ctx
->u
.lsp
.nhlfe_list
;
1163 zebra_nhlfe_t
*dplane_ctx_add_nhlfe(struct zebra_dplane_ctx
*ctx
,
1164 enum lsp_types_t lsp_type
,
1165 enum nexthop_types_t nh_type
,
1169 mpls_label_t out_labels
[])
1171 zebra_nhlfe_t
*nhlfe
;
1173 DPLANE_CTX_VALID(ctx
);
1175 nhlfe
= zebra_mpls_lsp_add_nhlfe(&(ctx
->u
.lsp
),
1176 lsp_type
, nh_type
, gate
,
1177 ifindex
, num_labels
, out_labels
);
1182 const zebra_nhlfe_t
*
1183 dplane_ctx_get_best_nhlfe(const struct zebra_dplane_ctx
*ctx
)
1185 DPLANE_CTX_VALID(ctx
);
1187 return ctx
->u
.lsp
.best_nhlfe
;
1190 const zebra_nhlfe_t
*
1191 dplane_ctx_set_best_nhlfe(struct zebra_dplane_ctx
*ctx
,
1192 zebra_nhlfe_t
*nhlfe
)
1194 DPLANE_CTX_VALID(ctx
);
1196 ctx
->u
.lsp
.best_nhlfe
= nhlfe
;
1197 return ctx
->u
.lsp
.best_nhlfe
;
1200 uint32_t dplane_ctx_get_lsp_num_ecmp(const struct zebra_dplane_ctx
*ctx
)
1202 DPLANE_CTX_VALID(ctx
);
1204 return ctx
->u
.lsp
.num_ecmp
;
1207 mpls_label_t
dplane_ctx_get_pw_local_label(const struct zebra_dplane_ctx
*ctx
)
1209 DPLANE_CTX_VALID(ctx
);
1211 return ctx
->u
.pw
.local_label
;
1214 mpls_label_t
dplane_ctx_get_pw_remote_label(const struct zebra_dplane_ctx
*ctx
)
1216 DPLANE_CTX_VALID(ctx
);
1218 return ctx
->u
.pw
.remote_label
;
1221 int dplane_ctx_get_pw_type(const struct zebra_dplane_ctx
*ctx
)
1223 DPLANE_CTX_VALID(ctx
);
1225 return ctx
->u
.pw
.type
;
1228 int dplane_ctx_get_pw_af(const struct zebra_dplane_ctx
*ctx
)
1230 DPLANE_CTX_VALID(ctx
);
1232 return ctx
->u
.pw
.af
;
1235 uint32_t dplane_ctx_get_pw_flags(const struct zebra_dplane_ctx
*ctx
)
1237 DPLANE_CTX_VALID(ctx
);
1239 return ctx
->u
.pw
.flags
;
1242 int dplane_ctx_get_pw_status(const struct zebra_dplane_ctx
*ctx
)
1244 DPLANE_CTX_VALID(ctx
);
1246 return ctx
->u
.pw
.status
;
1249 const union g_addr
*dplane_ctx_get_pw_dest(
1250 const struct zebra_dplane_ctx
*ctx
)
1252 DPLANE_CTX_VALID(ctx
);
1254 return &(ctx
->u
.pw
.dest
);
1257 const union pw_protocol_fields
*dplane_ctx_get_pw_proto(
1258 const struct zebra_dplane_ctx
*ctx
)
1260 DPLANE_CTX_VALID(ctx
);
1262 return &(ctx
->u
.pw
.fields
);
1265 const struct nexthop_group
*
1266 dplane_ctx_get_pw_nhg(const struct zebra_dplane_ctx
*ctx
)
1268 DPLANE_CTX_VALID(ctx
);
1270 return &(ctx
->u
.pw
.nhg
);
1273 /* Accessors for interface information */
1274 uint32_t dplane_ctx_get_intf_metric(const struct zebra_dplane_ctx
*ctx
)
1276 DPLANE_CTX_VALID(ctx
);
1278 return ctx
->u
.intf
.metric
;
1281 /* Is interface addr p2p? */
1282 bool dplane_ctx_intf_is_connected(const struct zebra_dplane_ctx
*ctx
)
1284 DPLANE_CTX_VALID(ctx
);
1286 return (ctx
->u
.intf
.flags
& DPLANE_INTF_CONNECTED
);
1289 bool dplane_ctx_intf_is_secondary(const struct zebra_dplane_ctx
*ctx
)
1291 DPLANE_CTX_VALID(ctx
);
1293 return (ctx
->u
.intf
.flags
& DPLANE_INTF_SECONDARY
);
1296 bool dplane_ctx_intf_is_broadcast(const struct zebra_dplane_ctx
*ctx
)
1298 DPLANE_CTX_VALID(ctx
);
1300 return (ctx
->u
.intf
.flags
& DPLANE_INTF_BROADCAST
);
1303 const struct prefix
*dplane_ctx_get_intf_addr(
1304 const struct zebra_dplane_ctx
*ctx
)
1306 DPLANE_CTX_VALID(ctx
);
1308 return &(ctx
->u
.intf
.prefix
);
1311 bool dplane_ctx_intf_has_dest(const struct zebra_dplane_ctx
*ctx
)
1313 DPLANE_CTX_VALID(ctx
);
1315 return (ctx
->u
.intf
.flags
& DPLANE_INTF_HAS_DEST
);
1318 const struct prefix
*dplane_ctx_get_intf_dest(
1319 const struct zebra_dplane_ctx
*ctx
)
1321 DPLANE_CTX_VALID(ctx
);
1323 if (ctx
->u
.intf
.flags
& DPLANE_INTF_HAS_DEST
)
1324 return &(ctx
->u
.intf
.dest_prefix
);
1329 bool dplane_ctx_intf_has_label(const struct zebra_dplane_ctx
*ctx
)
1331 DPLANE_CTX_VALID(ctx
);
1333 return (ctx
->u
.intf
.flags
& DPLANE_INTF_HAS_LABEL
);
1336 const char *dplane_ctx_get_intf_label(const struct zebra_dplane_ctx
*ctx
)
1338 DPLANE_CTX_VALID(ctx
);
1340 return ctx
->u
.intf
.label
;
1343 /* Accessors for MAC information */
1344 vlanid_t
dplane_ctx_mac_get_vlan(const struct zebra_dplane_ctx
*ctx
)
1346 DPLANE_CTX_VALID(ctx
);
1347 return ctx
->u
.macinfo
.vid
;
1350 bool dplane_ctx_mac_is_sticky(const struct zebra_dplane_ctx
*ctx
)
1352 DPLANE_CTX_VALID(ctx
);
1353 return ctx
->u
.macinfo
.is_sticky
;
1356 const struct ethaddr
*dplane_ctx_mac_get_addr(
1357 const struct zebra_dplane_ctx
*ctx
)
1359 DPLANE_CTX_VALID(ctx
);
1360 return &(ctx
->u
.macinfo
.mac
);
1363 const struct in_addr
*dplane_ctx_mac_get_vtep_ip(
1364 const struct zebra_dplane_ctx
*ctx
)
1366 DPLANE_CTX_VALID(ctx
);
1367 return &(ctx
->u
.macinfo
.vtep_ip
);
1370 ifindex_t
dplane_ctx_mac_get_br_ifindex(const struct zebra_dplane_ctx
*ctx
)
1372 DPLANE_CTX_VALID(ctx
);
1373 return ctx
->u
.macinfo
.br_ifindex
;
1376 /* Accessors for neighbor information */
1377 const struct ipaddr
*dplane_ctx_neigh_get_ipaddr(
1378 const struct zebra_dplane_ctx
*ctx
)
1380 DPLANE_CTX_VALID(ctx
);
1381 return &(ctx
->u
.neigh
.ip_addr
);
1384 const struct ethaddr
*dplane_ctx_neigh_get_mac(
1385 const struct zebra_dplane_ctx
*ctx
)
1387 DPLANE_CTX_VALID(ctx
);
1388 return &(ctx
->u
.neigh
.mac
);
1391 uint32_t dplane_ctx_neigh_get_flags(const struct zebra_dplane_ctx
*ctx
)
1393 DPLANE_CTX_VALID(ctx
);
1394 return ctx
->u
.neigh
.flags
;
1397 uint16_t dplane_ctx_neigh_get_state(const struct zebra_dplane_ctx
*ctx
)
1399 DPLANE_CTX_VALID(ctx
);
1400 return ctx
->u
.neigh
.state
;
1404 * End of dplane context accessors
1409 * Retrieve the limit on the number of pending, unprocessed updates.
1411 uint32_t dplane_get_in_queue_limit(void)
1413 return atomic_load_explicit(&zdplane_info
.dg_max_queued_updates
,
1414 memory_order_relaxed
);
1418 * Configure limit on the number of pending, queued updates.
1420 void dplane_set_in_queue_limit(uint32_t limit
, bool set
)
1422 /* Reset to default on 'unset' */
1424 limit
= DPLANE_DEFAULT_MAX_QUEUED
;
1426 atomic_store_explicit(&zdplane_info
.dg_max_queued_updates
, limit
,
1427 memory_order_relaxed
);
1431 * Retrieve the current queue depth of incoming, unprocessed updates
1433 uint32_t dplane_get_in_queue_len(void)
1435 return atomic_load_explicit(&zdplane_info
.dg_routes_queued
,
1436 memory_order_seq_cst
);
1440 * Common dataplane context init with zebra namespace info.
1442 static int dplane_ctx_ns_init(struct zebra_dplane_ctx
*ctx
,
1443 struct zebra_ns
*zns
,
1446 dplane_info_from_zns(&(ctx
->zd_ns_info
), zns
);
1448 #if defined(HAVE_NETLINK)
1449 /* Increment message counter after copying to context struct - may need
1450 * two messages in some 'update' cases.
1453 zns
->netlink_dplane
.seq
+= 2;
1455 zns
->netlink_dplane
.seq
++;
1456 #endif /* HAVE_NETLINK */
1462 * Initialize a context block for a route update from zebra data structs.
1464 static int dplane_ctx_route_init(struct zebra_dplane_ctx
*ctx
,
1465 enum dplane_op_e op
,
1466 struct route_node
*rn
,
1467 struct route_entry
*re
)
1470 const struct route_table
*table
= NULL
;
1471 const rib_table_info_t
*info
;
1472 const struct prefix
*p
, *src_p
;
1473 struct zebra_ns
*zns
;
1474 struct zebra_vrf
*zvrf
;
1475 struct nexthop
*nexthop
;
1477 if (!ctx
|| !rn
|| !re
)
1481 ctx
->zd_status
= ZEBRA_DPLANE_REQUEST_SUCCESS
;
1483 ctx
->u
.rinfo
.zd_type
= re
->type
;
1484 ctx
->u
.rinfo
.zd_old_type
= re
->type
;
1486 /* Prefixes: dest, and optional source */
1487 srcdest_rnode_prefixes(rn
, &p
, &src_p
);
1489 prefix_copy(&(ctx
->u
.rinfo
.zd_dest
), p
);
1492 prefix_copy(&(ctx
->u
.rinfo
.zd_src
), src_p
);
1494 memset(&(ctx
->u
.rinfo
.zd_src
), 0, sizeof(ctx
->u
.rinfo
.zd_src
));
1496 ctx
->zd_table_id
= re
->table
;
1498 ctx
->u
.rinfo
.zd_metric
= re
->metric
;
1499 ctx
->u
.rinfo
.zd_old_metric
= re
->metric
;
1500 ctx
->zd_vrf_id
= re
->vrf_id
;
1501 ctx
->u
.rinfo
.zd_mtu
= re
->mtu
;
1502 ctx
->u
.rinfo
.zd_nexthop_mtu
= re
->nexthop_mtu
;
1503 ctx
->u
.rinfo
.zd_instance
= re
->instance
;
1504 ctx
->u
.rinfo
.zd_tag
= re
->tag
;
1505 ctx
->u
.rinfo
.zd_old_tag
= re
->tag
;
1506 ctx
->u
.rinfo
.zd_distance
= re
->distance
;
1508 table
= srcdest_rnode_table(rn
);
1511 ctx
->u
.rinfo
.zd_afi
= info
->afi
;
1512 ctx
->u
.rinfo
.zd_safi
= info
->safi
;
1514 /* Copy nexthops; recursive info is included too */
1515 copy_nexthops(&(ctx
->u
.rinfo
.zd_ng
.nexthop
),
1516 re
->nhe
->nhg
->nexthop
, NULL
);
1518 /* Ensure that the dplane's nexthops flags are clear. */
1519 for (ALL_NEXTHOPS(ctx
->u
.rinfo
.zd_ng
, nexthop
))
1520 UNSET_FLAG(nexthop
->flags
, NEXTHOP_FLAG_FIB
);
1522 /* Don't need some info when capturing a system notification */
1523 if (op
== DPLANE_OP_SYS_ROUTE_ADD
||
1524 op
== DPLANE_OP_SYS_ROUTE_DELETE
) {
1529 /* Extract ns info - can't use pointers to 'core' structs */
1530 zvrf
= vrf_info_lookup(re
->vrf_id
);
1532 dplane_ctx_ns_init(ctx
, zns
, (op
== DPLANE_OP_ROUTE_UPDATE
));
1536 struct nhg_hash_entry
*nhe
=
1537 zebra_nhg_resolve(zebra_nhg_lookup_id(re
->nhe_id
));
1539 ctx
->u
.rinfo
.nhe
.id
= nhe
->id
;
1541 * Check if the nhe is installed/queued before doing anything
1544 * If its a delete we only use the prefix anyway, so this only
1545 * matters for INSTALL/UPDATE.
1547 if (((op
== DPLANE_OP_ROUTE_INSTALL
)
1548 || (op
== DPLANE_OP_ROUTE_UPDATE
))
1549 && !CHECK_FLAG(nhe
->flags
, NEXTHOP_GROUP_INSTALLED
)
1550 && !CHECK_FLAG(nhe
->flags
, NEXTHOP_GROUP_QUEUED
)) {
1555 #endif /* HAVE_NETLINK */
1557 /* Trying out the sequence number idea, so we can try to detect
1558 * when a result is stale.
1560 re
->dplane_sequence
= zebra_router_get_next_sequence();
1561 ctx
->zd_seq
= re
->dplane_sequence
;
1570 * dplane_ctx_nexthop_init() - Initialize a context block for a nexthop update
1572 * @ctx: Dataplane context to init
1573 * @op: Operation being performed
1574 * @nhe: Nexthop group hash entry
1576 * Return: Result status
1578 static int dplane_ctx_nexthop_init(struct zebra_dplane_ctx
*ctx
,
1579 enum dplane_op_e op
,
1580 struct nhg_hash_entry
*nhe
)
1582 struct zebra_vrf
*zvrf
= NULL
;
1583 struct zebra_ns
*zns
= NULL
;
1591 ctx
->zd_status
= ZEBRA_DPLANE_REQUEST_SUCCESS
;
1593 /* Copy over nhe info */
1594 ctx
->u
.rinfo
.nhe
.id
= nhe
->id
;
1595 ctx
->u
.rinfo
.nhe
.afi
= nhe
->afi
;
1596 ctx
->u
.rinfo
.nhe
.vrf_id
= nhe
->vrf_id
;
1597 ctx
->u
.rinfo
.nhe
.type
= nhe
->type
;
1599 nexthop_group_copy(&(ctx
->u
.rinfo
.nhe
.ng
), nhe
->nhg
);
1601 /* If its a group, convert it to a grp array of ids */
1602 if (!zebra_nhg_depends_is_empty(nhe
)
1603 && !CHECK_FLAG(nhe
->flags
, NEXTHOP_GROUP_RECURSIVE
))
1604 ctx
->u
.rinfo
.nhe
.nh_grp_count
= zebra_nhg_nhe2grp(
1605 ctx
->u
.rinfo
.nhe
.nh_grp
, nhe
, MULTIPATH_NUM
);
1607 zvrf
= vrf_info_lookup(nhe
->vrf_id
);
1610 * Fallback to default namespace if the vrf got ripped out from under
1613 zns
= zvrf
? zvrf
->zns
: zebra_ns_lookup(NS_DEFAULT
);
1616 * TODO: Might not need to mark this as an update, since
1617 * it probably won't require two messages
1619 dplane_ctx_ns_init(ctx
, zns
, (op
== DPLANE_OP_NH_UPDATE
));
1628 * Capture information for an LSP update in a dplane context.
1630 static int dplane_ctx_lsp_init(struct zebra_dplane_ctx
*ctx
,
1631 enum dplane_op_e op
,
1635 zebra_nhlfe_t
*nhlfe
, *new_nhlfe
;
1637 if (IS_ZEBRA_DEBUG_DPLANE_DETAIL
)
1638 zlog_debug("init dplane ctx %s: in-label %u ecmp# %d",
1639 dplane_op2str(op
), lsp
->ile
.in_label
,
1643 ctx
->zd_status
= ZEBRA_DPLANE_REQUEST_SUCCESS
;
1645 /* Capture namespace info */
1646 dplane_ctx_ns_init(ctx
, zebra_ns_lookup(NS_DEFAULT
),
1647 (op
== DPLANE_OP_LSP_UPDATE
));
1649 memset(&ctx
->u
.lsp
, 0, sizeof(ctx
->u
.lsp
));
1651 ctx
->u
.lsp
.ile
= lsp
->ile
;
1652 ctx
->u
.lsp
.addr_family
= lsp
->addr_family
;
1653 ctx
->u
.lsp
.num_ecmp
= lsp
->num_ecmp
;
1654 ctx
->u
.lsp
.flags
= lsp
->flags
;
1656 /* Copy source LSP's nhlfes, and capture 'best' nhlfe */
1657 for (nhlfe
= lsp
->nhlfe_list
; nhlfe
; nhlfe
= nhlfe
->next
) {
1658 /* Not sure if this is meaningful... */
1659 if (nhlfe
->nexthop
== NULL
)
1663 zebra_mpls_lsp_add_nhlfe(
1666 nhlfe
->nexthop
->type
,
1667 &(nhlfe
->nexthop
->gate
),
1668 nhlfe
->nexthop
->ifindex
,
1669 nhlfe
->nexthop
->nh_label
->num_labels
,
1670 nhlfe
->nexthop
->nh_label
->label
);
1672 if (new_nhlfe
== NULL
|| new_nhlfe
->nexthop
== NULL
) {
1677 /* Need to copy flags too */
1678 new_nhlfe
->flags
= nhlfe
->flags
;
1679 new_nhlfe
->nexthop
->flags
= nhlfe
->nexthop
->flags
;
1681 if (nhlfe
== lsp
->best_nhlfe
)
1682 ctx
->u
.lsp
.best_nhlfe
= new_nhlfe
;
1685 /* On error the ctx will be cleaned-up, so we don't need to
1686 * deal with any allocated nhlfe or nexthop structs here.
1693 * Capture information for an LSP update in a dplane context.
1695 static int dplane_ctx_pw_init(struct zebra_dplane_ctx
*ctx
,
1696 enum dplane_op_e op
,
1697 struct zebra_pw
*pw
)
1701 struct route_table
*table
;
1702 struct route_node
*rn
;
1703 struct route_entry
*re
;
1705 if (IS_ZEBRA_DEBUG_DPLANE_DETAIL
)
1706 zlog_debug("init dplane ctx %s: pw '%s', loc %u, rem %u",
1707 dplane_op2str(op
), pw
->ifname
, pw
->local_label
,
1711 ctx
->zd_status
= ZEBRA_DPLANE_REQUEST_SUCCESS
;
1713 /* Capture namespace info: no netlink support as of 12/18,
1714 * but just in case...
1716 dplane_ctx_ns_init(ctx
, zebra_ns_lookup(NS_DEFAULT
), false);
1718 memset(&ctx
->u
.pw
, 0, sizeof(ctx
->u
.pw
));
1720 /* This name appears to be c-string, so we use string copy. */
1721 strlcpy(ctx
->zd_ifname
, pw
->ifname
, sizeof(ctx
->zd_ifname
));
1723 ctx
->zd_vrf_id
= pw
->vrf_id
;
1724 ctx
->zd_ifindex
= pw
->ifindex
;
1725 ctx
->u
.pw
.type
= pw
->type
;
1726 ctx
->u
.pw
.af
= pw
->af
;
1727 ctx
->u
.pw
.local_label
= pw
->local_label
;
1728 ctx
->u
.pw
.remote_label
= pw
->remote_label
;
1729 ctx
->u
.pw
.flags
= pw
->flags
;
1731 ctx
->u
.pw
.dest
= pw
->nexthop
;
1733 ctx
->u
.pw
.fields
= pw
->data
;
1735 /* Capture nexthop info for the pw destination. We need to look
1736 * up and use zebra datastructs, but we're running in the zebra
1737 * pthread here so that should be ok.
1739 memcpy(&p
.u
, &pw
->nexthop
, sizeof(pw
->nexthop
));
1741 p
.prefixlen
= ((pw
->af
== AF_INET
) ?
1742 IPV4_MAX_PREFIXLEN
: IPV6_MAX_PREFIXLEN
);
1744 afi
= (pw
->af
== AF_INET
) ? AFI_IP
: AFI_IP6
;
1745 table
= zebra_vrf_table(afi
, SAFI_UNICAST
, pw
->vrf_id
);
1747 rn
= route_node_match(table
, &p
);
1749 RNODE_FOREACH_RE(rn
, re
) {
1750 if (CHECK_FLAG(re
->flags
, ZEBRA_FLAG_SELECTED
))
1755 copy_nexthops(&(ctx
->u
.pw
.nhg
.nexthop
),
1756 re
->nhe
->nhg
->nexthop
, NULL
);
1758 route_unlock_node(rn
);
1766 * Enqueue a new update,
1767 * and ensure an event is active for the dataplane pthread.
1769 static int dplane_update_enqueue(struct zebra_dplane_ctx
*ctx
)
1772 uint32_t high
, curr
;
1774 /* Enqueue for processing by the dataplane pthread */
1777 TAILQ_INSERT_TAIL(&zdplane_info
.dg_update_ctx_q
, ctx
,
1782 curr
= atomic_add_fetch_explicit(
1784 /* TODO -- issue with the clang atomic/intrinsics currently;
1785 * casting away the 'Atomic'-ness of the variable works.
1787 (uint32_t *)&(zdplane_info
.dg_routes_queued
),
1789 &(zdplane_info
.dg_routes_queued
),
1791 1, memory_order_seq_cst
);
1793 /* Maybe update high-water counter also */
1794 high
= atomic_load_explicit(&zdplane_info
.dg_routes_queued_max
,
1795 memory_order_seq_cst
);
1796 while (high
< curr
) {
1797 if (atomic_compare_exchange_weak_explicit(
1798 &zdplane_info
.dg_routes_queued_max
,
1800 memory_order_seq_cst
,
1801 memory_order_seq_cst
))
1805 /* Ensure that an event for the dataplane thread is active */
1806 ret
= dplane_provider_work_ready();
1812 * Utility that prepares a route update and enqueues it for processing
1814 static enum zebra_dplane_result
1815 dplane_route_update_internal(struct route_node
*rn
,
1816 struct route_entry
*re
,
1817 struct route_entry
*old_re
,
1818 enum dplane_op_e op
)
1820 enum zebra_dplane_result result
= ZEBRA_DPLANE_REQUEST_FAILURE
;
1822 struct zebra_dplane_ctx
*ctx
= NULL
;
1824 /* Obtain context block */
1825 ctx
= dplane_ctx_alloc();
1827 /* Init context with info from zebra data structs */
1828 ret
= dplane_ctx_route_init(ctx
, op
, rn
, re
);
1830 /* Capture some extra info for update case
1831 * where there's a different 'old' route.
1833 if ((op
== DPLANE_OP_ROUTE_UPDATE
) &&
1834 old_re
&& (old_re
!= re
)) {
1835 ctx
->zd_is_update
= true;
1837 old_re
->dplane_sequence
=
1838 zebra_router_get_next_sequence();
1839 ctx
->zd_old_seq
= old_re
->dplane_sequence
;
1841 ctx
->u
.rinfo
.zd_old_tag
= old_re
->tag
;
1842 ctx
->u
.rinfo
.zd_old_type
= old_re
->type
;
1843 ctx
->u
.rinfo
.zd_old_instance
= old_re
->instance
;
1844 ctx
->u
.rinfo
.zd_old_distance
= old_re
->distance
;
1845 ctx
->u
.rinfo
.zd_old_metric
= old_re
->metric
;
1847 #ifndef HAVE_NETLINK
1848 /* For bsd, capture previous re's nexthops too, sigh.
1849 * We'll need these to do per-nexthop deletes.
1851 copy_nexthops(&(ctx
->u
.rinfo
.zd_old_ng
.nexthop
),
1852 old_re
->nhe
->nhg
->nexthop
, NULL
);
1853 #endif /* !HAVE_NETLINK */
1856 /* Enqueue context for processing */
1857 ret
= dplane_update_enqueue(ctx
);
1860 /* Update counter */
1861 atomic_fetch_add_explicit(&zdplane_info
.dg_routes_in
, 1,
1862 memory_order_relaxed
);
1865 result
= ZEBRA_DPLANE_REQUEST_QUEUED
;
1868 result
= ZEBRA_DPLANE_REQUEST_SUCCESS
;
1870 atomic_fetch_add_explicit(&zdplane_info
.dg_route_errors
,
1871 1, memory_order_relaxed
);
1873 dplane_ctx_free(&ctx
);
1880 * dplane_nexthop_update_internal() - Helper for enqueuing nexthop changes
1882 * @nhe: Nexthop group hash entry where the change occured
1883 * @op: The operation to be enqued
1885 * Return: Result of the change
1887 static enum zebra_dplane_result
1888 dplane_nexthop_update_internal(struct nhg_hash_entry
*nhe
, enum dplane_op_e op
)
1890 enum zebra_dplane_result result
= ZEBRA_DPLANE_REQUEST_FAILURE
;
1892 struct zebra_dplane_ctx
*ctx
= NULL
;
1894 /* Obtain context block */
1895 ctx
= dplane_ctx_alloc();
1901 ret
= dplane_ctx_nexthop_init(ctx
, op
, nhe
);
1903 ret
= dplane_update_enqueue(ctx
);
1906 /* Update counter */
1907 atomic_fetch_add_explicit(&zdplane_info
.dg_nexthops_in
, 1,
1908 memory_order_relaxed
);
1911 result
= ZEBRA_DPLANE_REQUEST_QUEUED
;
1913 atomic_fetch_add_explicit(&zdplane_info
.dg_nexthop_errors
, 1,
1914 memory_order_relaxed
);
1916 dplane_ctx_free(&ctx
);
1923 * Enqueue a route 'add' for the dataplane.
1925 enum zebra_dplane_result
dplane_route_add(struct route_node
*rn
,
1926 struct route_entry
*re
)
1928 enum zebra_dplane_result ret
= ZEBRA_DPLANE_REQUEST_FAILURE
;
1930 if (rn
== NULL
|| re
== NULL
)
1933 ret
= dplane_route_update_internal(rn
, re
, NULL
,
1934 DPLANE_OP_ROUTE_INSTALL
);
1941 * Enqueue a route update for the dataplane.
1943 enum zebra_dplane_result
dplane_route_update(struct route_node
*rn
,
1944 struct route_entry
*re
,
1945 struct route_entry
*old_re
)
1947 enum zebra_dplane_result ret
= ZEBRA_DPLANE_REQUEST_FAILURE
;
1949 if (rn
== NULL
|| re
== NULL
)
1952 ret
= dplane_route_update_internal(rn
, re
, old_re
,
1953 DPLANE_OP_ROUTE_UPDATE
);
1959 * Enqueue a route removal for the dataplane.
1961 enum zebra_dplane_result
dplane_route_delete(struct route_node
*rn
,
1962 struct route_entry
*re
)
1964 enum zebra_dplane_result ret
= ZEBRA_DPLANE_REQUEST_FAILURE
;
1966 if (rn
== NULL
|| re
== NULL
)
1969 ret
= dplane_route_update_internal(rn
, re
, NULL
,
1970 DPLANE_OP_ROUTE_DELETE
);
1977 * Notify the dplane when system/connected routes change.
1979 enum zebra_dplane_result
dplane_sys_route_add(struct route_node
*rn
,
1980 struct route_entry
*re
)
1982 enum zebra_dplane_result ret
= ZEBRA_DPLANE_REQUEST_FAILURE
;
1984 /* Ignore this event unless a provider plugin has requested it. */
1985 if (!zdplane_info
.dg_sys_route_notifs
) {
1986 ret
= ZEBRA_DPLANE_REQUEST_SUCCESS
;
1990 if (rn
== NULL
|| re
== NULL
)
1993 ret
= dplane_route_update_internal(rn
, re
, NULL
,
1994 DPLANE_OP_SYS_ROUTE_ADD
);
2001 * Notify the dplane when system/connected routes are deleted.
2003 enum zebra_dplane_result
dplane_sys_route_del(struct route_node
*rn
,
2004 struct route_entry
*re
)
2006 enum zebra_dplane_result ret
= ZEBRA_DPLANE_REQUEST_FAILURE
;
2008 /* Ignore this event unless a provider plugin has requested it. */
2009 if (!zdplane_info
.dg_sys_route_notifs
) {
2010 ret
= ZEBRA_DPLANE_REQUEST_SUCCESS
;
2014 if (rn
== NULL
|| re
== NULL
)
2017 ret
= dplane_route_update_internal(rn
, re
, NULL
,
2018 DPLANE_OP_SYS_ROUTE_DELETE
);
2025 * Update from an async notification, to bring other fibs up-to-date.
2027 enum zebra_dplane_result
2028 dplane_route_notif_update(struct route_node
*rn
,
2029 struct route_entry
*re
,
2030 enum dplane_op_e op
,
2031 struct zebra_dplane_ctx
*ctx
)
2033 enum zebra_dplane_result ret
= ZEBRA_DPLANE_REQUEST_FAILURE
;
2034 struct zebra_dplane_ctx
*new_ctx
= NULL
;
2035 struct nexthop
*nexthop
;
2037 if (rn
== NULL
|| re
== NULL
)
2040 new_ctx
= dplane_ctx_alloc();
2041 if (new_ctx
== NULL
)
2044 /* Init context with info from zebra data structs */
2045 dplane_ctx_route_init(new_ctx
, op
, rn
, re
);
2047 /* For add/update, need to adjust the nexthops so that we match
2048 * the notification state, which may not be the route-entry/RIB
2051 if (op
== DPLANE_OP_ROUTE_UPDATE
||
2052 op
== DPLANE_OP_ROUTE_INSTALL
) {
2054 nexthops_free(new_ctx
->u
.rinfo
.zd_ng
.nexthop
);
2055 new_ctx
->u
.rinfo
.zd_ng
.nexthop
= NULL
;
2057 copy_nexthops(&(new_ctx
->u
.rinfo
.zd_ng
.nexthop
),
2058 (rib_active_nhg(re
))->nexthop
, NULL
);
2060 for (ALL_NEXTHOPS(new_ctx
->u
.rinfo
.zd_ng
, nexthop
))
2061 UNSET_FLAG(nexthop
->flags
, NEXTHOP_FLAG_FIB
);
2065 /* Capture info about the source of the notification, in 'ctx' */
2066 dplane_ctx_set_notif_provider(new_ctx
,
2067 dplane_ctx_get_notif_provider(ctx
));
2069 dplane_update_enqueue(new_ctx
);
2071 ret
= ZEBRA_DPLANE_REQUEST_QUEUED
;
2078 * Enqueue a nexthop add for the dataplane.
2080 enum zebra_dplane_result
dplane_nexthop_add(struct nhg_hash_entry
*nhe
)
2082 enum zebra_dplane_result ret
= ZEBRA_DPLANE_REQUEST_FAILURE
;
2085 ret
= dplane_nexthop_update_internal(nhe
, DPLANE_OP_NH_INSTALL
);
2090 * Enqueue a nexthop update for the dataplane.
2092 * Might not need this func since zebra's nexthop objects should be immutable?
2094 enum zebra_dplane_result
dplane_nexthop_update(struct nhg_hash_entry
*nhe
)
2096 enum zebra_dplane_result ret
= ZEBRA_DPLANE_REQUEST_FAILURE
;
2099 ret
= dplane_nexthop_update_internal(nhe
, DPLANE_OP_NH_UPDATE
);
2104 * Enqueue a nexthop removal for the dataplane.
2106 enum zebra_dplane_result
dplane_nexthop_delete(struct nhg_hash_entry
*nhe
)
2108 enum zebra_dplane_result ret
= ZEBRA_DPLANE_REQUEST_FAILURE
;
2111 ret
= dplane_nexthop_update_internal(nhe
, DPLANE_OP_NH_DELETE
);
2117 * Enqueue LSP add for the dataplane.
2119 enum zebra_dplane_result
dplane_lsp_add(zebra_lsp_t
*lsp
)
2121 enum zebra_dplane_result ret
=
2122 lsp_update_internal(lsp
, DPLANE_OP_LSP_INSTALL
);
2128 * Enqueue LSP update for the dataplane.
2130 enum zebra_dplane_result
dplane_lsp_update(zebra_lsp_t
*lsp
)
2132 enum zebra_dplane_result ret
=
2133 lsp_update_internal(lsp
, DPLANE_OP_LSP_UPDATE
);
2139 * Enqueue LSP delete for the dataplane.
2141 enum zebra_dplane_result
dplane_lsp_delete(zebra_lsp_t
*lsp
)
2143 enum zebra_dplane_result ret
=
2144 lsp_update_internal(lsp
, DPLANE_OP_LSP_DELETE
);
2149 /* Update or un-install resulting from an async notification */
2150 enum zebra_dplane_result
2151 dplane_lsp_notif_update(zebra_lsp_t
*lsp
,
2152 enum dplane_op_e op
,
2153 struct zebra_dplane_ctx
*notif_ctx
)
2155 enum zebra_dplane_result result
= ZEBRA_DPLANE_REQUEST_FAILURE
;
2157 struct zebra_dplane_ctx
*ctx
= NULL
;
2159 /* Obtain context block */
2160 ctx
= dplane_ctx_alloc();
2166 ret
= dplane_ctx_lsp_init(ctx
, op
, lsp
);
2170 /* Capture info about the source of the notification */
2171 dplane_ctx_set_notif_provider(
2173 dplane_ctx_get_notif_provider(notif_ctx
));
2175 ret
= dplane_update_enqueue(ctx
);
2178 /* Update counter */
2179 atomic_fetch_add_explicit(&zdplane_info
.dg_lsps_in
, 1,
2180 memory_order_relaxed
);
2183 result
= ZEBRA_DPLANE_REQUEST_QUEUED
;
2185 atomic_fetch_add_explicit(&zdplane_info
.dg_lsp_errors
, 1,
2186 memory_order_relaxed
);
2188 dplane_ctx_free(&ctx
);
2194 * Enqueue pseudowire install for the dataplane.
2196 enum zebra_dplane_result
dplane_pw_install(struct zebra_pw
*pw
)
2198 return pw_update_internal(pw
, DPLANE_OP_PW_INSTALL
);
2202 * Enqueue pseudowire un-install for the dataplane.
2204 enum zebra_dplane_result
dplane_pw_uninstall(struct zebra_pw
*pw
)
2206 return pw_update_internal(pw
, DPLANE_OP_PW_UNINSTALL
);
2210 * Common internal LSP update utility
2212 static enum zebra_dplane_result
lsp_update_internal(zebra_lsp_t
*lsp
,
2213 enum dplane_op_e op
)
2215 enum zebra_dplane_result result
= ZEBRA_DPLANE_REQUEST_FAILURE
;
2217 struct zebra_dplane_ctx
*ctx
= NULL
;
2219 /* Obtain context block */
2220 ctx
= dplane_ctx_alloc();
2222 ret
= dplane_ctx_lsp_init(ctx
, op
, lsp
);
2226 ret
= dplane_update_enqueue(ctx
);
2229 /* Update counter */
2230 atomic_fetch_add_explicit(&zdplane_info
.dg_lsps_in
, 1,
2231 memory_order_relaxed
);
2234 result
= ZEBRA_DPLANE_REQUEST_QUEUED
;
2236 atomic_fetch_add_explicit(&zdplane_info
.dg_lsp_errors
, 1,
2237 memory_order_relaxed
);
2238 dplane_ctx_free(&ctx
);
2245 * Internal, common handler for pseudowire updates.
2247 static enum zebra_dplane_result
pw_update_internal(struct zebra_pw
*pw
,
2248 enum dplane_op_e op
)
2250 enum zebra_dplane_result result
= ZEBRA_DPLANE_REQUEST_FAILURE
;
2252 struct zebra_dplane_ctx
*ctx
= NULL
;
2254 ctx
= dplane_ctx_alloc();
2256 ret
= dplane_ctx_pw_init(ctx
, op
, pw
);
2260 ret
= dplane_update_enqueue(ctx
);
2263 /* Update counter */
2264 atomic_fetch_add_explicit(&zdplane_info
.dg_pws_in
, 1,
2265 memory_order_relaxed
);
2268 result
= ZEBRA_DPLANE_REQUEST_QUEUED
;
2270 atomic_fetch_add_explicit(&zdplane_info
.dg_pw_errors
, 1,
2271 memory_order_relaxed
);
2272 dplane_ctx_free(&ctx
);
2279 * Enqueue interface address add for the dataplane.
2281 enum zebra_dplane_result
dplane_intf_addr_set(const struct interface
*ifp
,
2282 const struct connected
*ifc
)
2284 #if !defined(HAVE_NETLINK) && defined(HAVE_STRUCT_IFALIASREQ)
2285 /* Extra checks for this OS path. */
2287 /* Don't configure PtP addresses on broadcast ifs or reverse */
2288 if (!(ifp
->flags
& IFF_POINTOPOINT
) != !CONNECTED_PEER(ifc
)) {
2289 if (IS_ZEBRA_DEBUG_KERNEL
|| IS_ZEBRA_DEBUG_DPLANE
)
2290 zlog_debug("Failed to set intf addr: mismatch p2p and connected");
2292 return ZEBRA_DPLANE_REQUEST_FAILURE
;
2295 /* Ensure that no existing installed v4 route conflicts with
2296 * the new interface prefix. This check must be done in the
2297 * zebra pthread context, and any route delete (if needed)
2298 * is enqueued before the interface address programming attempt.
2300 if (ifc
->address
->family
== AF_INET
) {
2301 struct prefix_ipv4
*p
;
2303 p
= (struct prefix_ipv4
*)ifc
->address
;
2304 rib_lookup_and_pushup(p
, ifp
->vrf_id
);
2308 return intf_addr_update_internal(ifp
, ifc
, DPLANE_OP_ADDR_INSTALL
);
2312 * Enqueue interface address remove/uninstall for the dataplane.
2314 enum zebra_dplane_result
dplane_intf_addr_unset(const struct interface
*ifp
,
2315 const struct connected
*ifc
)
2317 return intf_addr_update_internal(ifp
, ifc
, DPLANE_OP_ADDR_UNINSTALL
);
2320 static enum zebra_dplane_result
intf_addr_update_internal(
2321 const struct interface
*ifp
, const struct connected
*ifc
,
2322 enum dplane_op_e op
)
2324 enum zebra_dplane_result result
= ZEBRA_DPLANE_REQUEST_FAILURE
;
2326 struct zebra_dplane_ctx
*ctx
= NULL
;
2327 struct zebra_ns
*zns
;
2329 if (IS_ZEBRA_DEBUG_DPLANE_DETAIL
) {
2330 char addr_str
[PREFIX_STRLEN
];
2332 prefix2str(ifc
->address
, addr_str
, sizeof(addr_str
));
2334 zlog_debug("init intf ctx %s: idx %d, addr %u:%s",
2335 dplane_op2str(op
), ifp
->ifindex
, ifp
->vrf_id
,
2339 ctx
= dplane_ctx_alloc();
2342 ctx
->zd_status
= ZEBRA_DPLANE_REQUEST_SUCCESS
;
2343 ctx
->zd_vrf_id
= ifp
->vrf_id
;
2345 zns
= zebra_ns_lookup(ifp
->vrf_id
);
2346 dplane_ctx_ns_init(ctx
, zns
, false);
2348 /* Init the interface-addr-specific area */
2349 memset(&ctx
->u
.intf
, 0, sizeof(ctx
->u
.intf
));
2351 strlcpy(ctx
->zd_ifname
, ifp
->name
, sizeof(ctx
->zd_ifname
));
2352 ctx
->zd_ifindex
= ifp
->ifindex
;
2353 ctx
->u
.intf
.prefix
= *(ifc
->address
);
2355 if (if_is_broadcast(ifp
))
2356 ctx
->u
.intf
.flags
|= DPLANE_INTF_BROADCAST
;
2358 if (CONNECTED_PEER(ifc
)) {
2359 ctx
->u
.intf
.dest_prefix
= *(ifc
->destination
);
2360 ctx
->u
.intf
.flags
|=
2361 (DPLANE_INTF_CONNECTED
| DPLANE_INTF_HAS_DEST
);
2364 if (CHECK_FLAG(ifc
->flags
, ZEBRA_IFA_SECONDARY
))
2365 ctx
->u
.intf
.flags
|= DPLANE_INTF_SECONDARY
;
2370 ctx
->u
.intf
.flags
|= DPLANE_INTF_HAS_LABEL
;
2372 /* Use embedded buffer if it's adequate; else allocate. */
2373 len
= strlen(ifc
->label
);
2375 if (len
< sizeof(ctx
->u
.intf
.label_buf
)) {
2376 strlcpy(ctx
->u
.intf
.label_buf
, ifc
->label
,
2377 sizeof(ctx
->u
.intf
.label_buf
));
2378 ctx
->u
.intf
.label
= ctx
->u
.intf
.label_buf
;
2380 ctx
->u
.intf
.label
= strdup(ifc
->label
);
2384 ret
= dplane_update_enqueue(ctx
);
2386 /* Increment counter */
2387 atomic_fetch_add_explicit(&zdplane_info
.dg_intf_addrs_in
, 1,
2388 memory_order_relaxed
);
2391 result
= ZEBRA_DPLANE_REQUEST_QUEUED
;
2394 atomic_fetch_add_explicit(&zdplane_info
.dg_intf_addr_errors
,
2395 1, memory_order_relaxed
);
2396 dplane_ctx_free(&ctx
);
2403 * Enqueue vxlan/evpn mac add (or update).
2405 enum zebra_dplane_result
dplane_mac_add(const struct interface
*ifp
,
2406 const struct interface
*bridge_ifp
,
2408 const struct ethaddr
*mac
,
2409 struct in_addr vtep_ip
,
2412 enum zebra_dplane_result result
;
2414 /* Use common helper api */
2415 result
= mac_update_internal(DPLANE_OP_MAC_INSTALL
, ifp
, bridge_ifp
,
2416 vid
, mac
, vtep_ip
, sticky
);
2421 * Enqueue vxlan/evpn mac delete.
2423 enum zebra_dplane_result
dplane_mac_del(const struct interface
*ifp
,
2424 const struct interface
*bridge_ifp
,
2426 const struct ethaddr
*mac
,
2427 struct in_addr vtep_ip
)
2429 enum zebra_dplane_result result
;
2431 /* Use common helper api */
2432 result
= mac_update_internal(DPLANE_OP_MAC_DELETE
, ifp
, bridge_ifp
,
2433 vid
, mac
, vtep_ip
, false);
2438 * Common helper api for MAC address/vxlan updates
2440 static enum zebra_dplane_result
2441 mac_update_internal(enum dplane_op_e op
,
2442 const struct interface
*ifp
,
2443 const struct interface
*br_ifp
,
2445 const struct ethaddr
*mac
,
2446 struct in_addr vtep_ip
,
2449 enum zebra_dplane_result result
= ZEBRA_DPLANE_REQUEST_FAILURE
;
2451 struct zebra_dplane_ctx
*ctx
= NULL
;
2452 struct zebra_ns
*zns
;
2454 if (IS_ZEBRA_DEBUG_DPLANE_DETAIL
) {
2455 char buf1
[ETHER_ADDR_STRLEN
], buf2
[PREFIX_STRLEN
];
2457 zlog_debug("init mac ctx %s: mac %s, ifp %s, vtep %s",
2459 prefix_mac2str(mac
, buf1
, sizeof(buf1
)),
2461 inet_ntop(AF_INET
, &vtep_ip
, buf2
, sizeof(buf2
)));
2464 ctx
= dplane_ctx_alloc();
2467 ctx
->zd_status
= ZEBRA_DPLANE_REQUEST_SUCCESS
;
2468 ctx
->zd_vrf_id
= ifp
->vrf_id
;
2470 zns
= zebra_ns_lookup(ifp
->vrf_id
);
2471 dplane_ctx_ns_init(ctx
, zns
, false);
2473 strlcpy(ctx
->zd_ifname
, ifp
->name
, sizeof(ctx
->zd_ifname
));
2474 ctx
->zd_ifindex
= ifp
->ifindex
;
2476 /* Init the mac-specific data area */
2477 memset(&ctx
->u
.macinfo
, 0, sizeof(ctx
->u
.macinfo
));
2479 ctx
->u
.macinfo
.br_ifindex
= br_ifp
->ifindex
;
2480 ctx
->u
.macinfo
.vtep_ip
= vtep_ip
;
2481 ctx
->u
.macinfo
.mac
= *mac
;
2482 ctx
->u
.macinfo
.vid
= vid
;
2483 ctx
->u
.macinfo
.is_sticky
= sticky
;
2485 /* Enqueue for processing on the dplane pthread */
2486 ret
= dplane_update_enqueue(ctx
);
2488 /* Increment counter */
2489 atomic_fetch_add_explicit(&zdplane_info
.dg_macs_in
, 1,
2490 memory_order_relaxed
);
2493 result
= ZEBRA_DPLANE_REQUEST_QUEUED
;
2496 atomic_fetch_add_explicit(&zdplane_info
.dg_mac_errors
, 1,
2497 memory_order_relaxed
);
2498 dplane_ctx_free(&ctx
);
2505 * Enqueue evpn neighbor add for the dataplane.
2507 enum zebra_dplane_result
dplane_neigh_add(const struct interface
*ifp
,
2508 const struct ipaddr
*ip
,
2509 const struct ethaddr
*mac
,
2512 enum zebra_dplane_result result
= ZEBRA_DPLANE_REQUEST_FAILURE
;
2514 result
= neigh_update_internal(DPLANE_OP_NEIGH_INSTALL
,
2515 ifp
, mac
, ip
, flags
, DPLANE_NUD_NOARP
);
2521 * Enqueue evpn neighbor update for the dataplane.
2523 enum zebra_dplane_result
dplane_neigh_update(const struct interface
*ifp
,
2524 const struct ipaddr
*ip
,
2525 const struct ethaddr
*mac
)
2527 enum zebra_dplane_result result
;
2529 result
= neigh_update_internal(DPLANE_OP_NEIGH_UPDATE
,
2530 ifp
, mac
, ip
, 0, DPLANE_NUD_PROBE
);
2536 * Enqueue evpn neighbor delete for the dataplane.
2538 enum zebra_dplane_result
dplane_neigh_delete(const struct interface
*ifp
,
2539 const struct ipaddr
*ip
)
2541 enum zebra_dplane_result result
;
2543 result
= neigh_update_internal(DPLANE_OP_NEIGH_DELETE
,
2544 ifp
, NULL
, ip
, 0, 0);
2550 * Enqueue evpn VTEP add for the dataplane.
2552 enum zebra_dplane_result
dplane_vtep_add(const struct interface
*ifp
,
2553 const struct in_addr
*ip
,
2556 enum zebra_dplane_result result
;
2557 struct ethaddr mac
= { {0, 0, 0, 0, 0, 0} };
2560 if (IS_ZEBRA_DEBUG_VXLAN
)
2561 zlog_debug("Install %s into flood list for VNI %u intf %s(%u)",
2562 inet_ntoa(*ip
), vni
, ifp
->name
, ifp
->ifindex
);
2564 SET_IPADDR_V4(&addr
);
2565 addr
.ipaddr_v4
= *ip
;
2567 result
= neigh_update_internal(DPLANE_OP_VTEP_ADD
,
2568 ifp
, &mac
, &addr
, 0, 0);
2574 * Enqueue evpn VTEP add for the dataplane.
2576 enum zebra_dplane_result
dplane_vtep_delete(const struct interface
*ifp
,
2577 const struct in_addr
*ip
,
2580 enum zebra_dplane_result result
;
2581 struct ethaddr mac
= { {0, 0, 0, 0, 0, 0} };
2584 if (IS_ZEBRA_DEBUG_VXLAN
)
2586 "Uninstall %s from flood list for VNI %u intf %s(%u)",
2587 inet_ntoa(*ip
), vni
, ifp
->name
, ifp
->ifindex
);
2589 SET_IPADDR_V4(&addr
);
2590 addr
.ipaddr_v4
= *ip
;
2592 result
= neigh_update_internal(DPLANE_OP_VTEP_DELETE
,
2593 ifp
, &mac
, &addr
, 0, 0);
2599 * Common helper api for evpn neighbor updates
2601 static enum zebra_dplane_result
2602 neigh_update_internal(enum dplane_op_e op
,
2603 const struct interface
*ifp
,
2604 const struct ethaddr
*mac
,
2605 const struct ipaddr
*ip
,
2606 uint32_t flags
, uint16_t state
)
2608 enum zebra_dplane_result result
= ZEBRA_DPLANE_REQUEST_FAILURE
;
2610 struct zebra_dplane_ctx
*ctx
= NULL
;
2611 struct zebra_ns
*zns
;
2613 if (IS_ZEBRA_DEBUG_DPLANE_DETAIL
) {
2614 char buf1
[ETHER_ADDR_STRLEN
], buf2
[PREFIX_STRLEN
];
2616 zlog_debug("init neigh ctx %s: ifp %s, mac %s, ip %s",
2618 prefix_mac2str(mac
, buf1
, sizeof(buf1
)),
2620 ipaddr2str(ip
, buf2
, sizeof(buf2
)));
2623 ctx
= dplane_ctx_alloc();
2626 ctx
->zd_status
= ZEBRA_DPLANE_REQUEST_SUCCESS
;
2627 ctx
->zd_vrf_id
= ifp
->vrf_id
;
2629 zns
= zebra_ns_lookup(ifp
->vrf_id
);
2630 dplane_ctx_ns_init(ctx
, zns
, false);
2632 strlcpy(ctx
->zd_ifname
, ifp
->name
, sizeof(ctx
->zd_ifname
));
2633 ctx
->zd_ifindex
= ifp
->ifindex
;
2635 /* Init the neighbor-specific data area */
2636 memset(&ctx
->u
.neigh
, 0, sizeof(ctx
->u
.neigh
));
2638 ctx
->u
.neigh
.ip_addr
= *ip
;
2640 ctx
->u
.neigh
.mac
= *mac
;
2641 ctx
->u
.neigh
.flags
= flags
;
2642 ctx
->u
.neigh
.state
= state
;
2644 /* Enqueue for processing on the dplane pthread */
2645 ret
= dplane_update_enqueue(ctx
);
2647 /* Increment counter */
2648 atomic_fetch_add_explicit(&zdplane_info
.dg_neighs_in
, 1,
2649 memory_order_relaxed
);
2652 result
= ZEBRA_DPLANE_REQUEST_QUEUED
;
2655 atomic_fetch_add_explicit(&zdplane_info
.dg_neigh_errors
, 1,
2656 memory_order_relaxed
);
2657 dplane_ctx_free(&ctx
);
2664 * Handler for 'show dplane'
2666 int dplane_show_helper(struct vty
*vty
, bool detailed
)
2668 uint64_t queued
, queue_max
, limit
, errs
, incoming
, yields
,
2671 /* Using atomics because counters are being changed in different
2674 incoming
= atomic_load_explicit(&zdplane_info
.dg_routes_in
,
2675 memory_order_relaxed
);
2676 limit
= atomic_load_explicit(&zdplane_info
.dg_max_queued_updates
,
2677 memory_order_relaxed
);
2678 queued
= atomic_load_explicit(&zdplane_info
.dg_routes_queued
,
2679 memory_order_relaxed
);
2680 queue_max
= atomic_load_explicit(&zdplane_info
.dg_routes_queued_max
,
2681 memory_order_relaxed
);
2682 errs
= atomic_load_explicit(&zdplane_info
.dg_route_errors
,
2683 memory_order_relaxed
);
2684 yields
= atomic_load_explicit(&zdplane_info
.dg_update_yields
,
2685 memory_order_relaxed
);
2686 other_errs
= atomic_load_explicit(&zdplane_info
.dg_other_errors
,
2687 memory_order_relaxed
);
2689 vty_out(vty
, "Zebra dataplane:\nRoute updates: %"PRIu64
"\n",
2691 vty_out(vty
, "Route update errors: %"PRIu64
"\n", errs
);
2692 vty_out(vty
, "Other errors : %"PRIu64
"\n", other_errs
);
2693 vty_out(vty
, "Route update queue limit: %"PRIu64
"\n", limit
);
2694 vty_out(vty
, "Route update queue depth: %"PRIu64
"\n", queued
);
2695 vty_out(vty
, "Route update queue max: %"PRIu64
"\n", queue_max
);
2696 vty_out(vty
, "Dplane update yields: %"PRIu64
"\n", yields
);
2698 incoming
= atomic_load_explicit(&zdplane_info
.dg_lsps_in
,
2699 memory_order_relaxed
);
2700 errs
= atomic_load_explicit(&zdplane_info
.dg_lsp_errors
,
2701 memory_order_relaxed
);
2702 vty_out(vty
, "LSP updates: %"PRIu64
"\n", incoming
);
2703 vty_out(vty
, "LSP update errors: %"PRIu64
"\n", errs
);
2705 incoming
= atomic_load_explicit(&zdplane_info
.dg_pws_in
,
2706 memory_order_relaxed
);
2707 errs
= atomic_load_explicit(&zdplane_info
.dg_pw_errors
,
2708 memory_order_relaxed
);
2709 vty_out(vty
, "PW updates: %"PRIu64
"\n", incoming
);
2710 vty_out(vty
, "PW update errors: %"PRIu64
"\n", errs
);
2712 incoming
= atomic_load_explicit(&zdplane_info
.dg_intf_addrs_in
,
2713 memory_order_relaxed
);
2714 errs
= atomic_load_explicit(&zdplane_info
.dg_intf_addr_errors
,
2715 memory_order_relaxed
);
2716 vty_out(vty
, "Intf addr updates: %"PRIu64
"\n", incoming
);
2717 vty_out(vty
, "Intf addr errors: %"PRIu64
"\n", errs
);
2719 incoming
= atomic_load_explicit(&zdplane_info
.dg_macs_in
,
2720 memory_order_relaxed
);
2721 errs
= atomic_load_explicit(&zdplane_info
.dg_mac_errors
,
2722 memory_order_relaxed
);
2723 vty_out(vty
, "EVPN MAC updates: %"PRIu64
"\n", incoming
);
2724 vty_out(vty
, "EVPN MAC errors: %"PRIu64
"\n", errs
);
2726 incoming
= atomic_load_explicit(&zdplane_info
.dg_neighs_in
,
2727 memory_order_relaxed
);
2728 errs
= atomic_load_explicit(&zdplane_info
.dg_neigh_errors
,
2729 memory_order_relaxed
);
2730 vty_out(vty
, "EVPN neigh updates: %"PRIu64
"\n", incoming
);
2731 vty_out(vty
, "EVPN neigh errors: %"PRIu64
"\n", errs
);
2737 * Handler for 'show dplane providers'
2739 int dplane_show_provs_helper(struct vty
*vty
, bool detailed
)
2741 struct zebra_dplane_provider
*prov
;
2742 uint64_t in
, in_max
, out
, out_max
;
2744 vty_out(vty
, "Zebra dataplane providers:\n");
2747 prov
= TAILQ_FIRST(&zdplane_info
.dg_providers_q
);
2750 /* Show counters, useful info from each registered provider */
2753 in
= atomic_load_explicit(&prov
->dp_in_counter
,
2754 memory_order_relaxed
);
2755 in_max
= atomic_load_explicit(&prov
->dp_in_max
,
2756 memory_order_relaxed
);
2757 out
= atomic_load_explicit(&prov
->dp_out_counter
,
2758 memory_order_relaxed
);
2759 out_max
= atomic_load_explicit(&prov
->dp_out_max
,
2760 memory_order_relaxed
);
2762 vty_out(vty
, "%s (%u): in: %"PRIu64
", q_max: %"PRIu64
", "
2763 "out: %"PRIu64
", q_max: %"PRIu64
"\n",
2764 prov
->dp_name
, prov
->dp_id
, in
, in_max
, out
, out_max
);
2767 prov
= TAILQ_NEXT(prov
, dp_prov_link
);
2775 * Helper for 'show run' etc.
2777 int dplane_config_write_helper(struct vty
*vty
)
2779 if (zdplane_info
.dg_max_queued_updates
!= DPLANE_DEFAULT_MAX_QUEUED
)
2780 vty_out(vty
, "zebra dplane limit %u\n",
2781 zdplane_info
.dg_max_queued_updates
);
2787 * Provider registration
2789 int dplane_provider_register(const char *name
,
2790 enum dplane_provider_prio prio
,
2792 int (*start_fp
)(struct zebra_dplane_provider
*),
2793 int (*fp
)(struct zebra_dplane_provider
*),
2794 int (*fini_fp
)(struct zebra_dplane_provider
*,
2797 struct zebra_dplane_provider
**prov_p
)
2800 struct zebra_dplane_provider
*p
= NULL
, *last
;
2808 if (prio
<= DPLANE_PRIO_NONE
||
2809 prio
> DPLANE_PRIO_LAST
) {
2814 /* Allocate and init new provider struct */
2815 p
= XCALLOC(MTYPE_DP_PROV
, sizeof(struct zebra_dplane_provider
));
2817 pthread_mutex_init(&(p
->dp_mutex
), NULL
);
2818 TAILQ_INIT(&(p
->dp_ctx_in_q
));
2819 TAILQ_INIT(&(p
->dp_ctx_out_q
));
2821 p
->dp_flags
= flags
;
2822 p
->dp_priority
= prio
;
2824 p
->dp_start
= start_fp
;
2825 p
->dp_fini
= fini_fp
;
2828 /* Lock - the dplane pthread may be running */
2831 p
->dp_id
= ++zdplane_info
.dg_provider_id
;
2834 strlcpy(p
->dp_name
, name
, DPLANE_PROVIDER_NAMELEN
);
2836 snprintf(p
->dp_name
, DPLANE_PROVIDER_NAMELEN
,
2837 "provider-%u", p
->dp_id
);
2839 /* Insert into list ordered by priority */
2840 TAILQ_FOREACH(last
, &zdplane_info
.dg_providers_q
, dp_prov_link
) {
2841 if (last
->dp_priority
> p
->dp_priority
)
2846 TAILQ_INSERT_BEFORE(last
, p
, dp_prov_link
);
2848 TAILQ_INSERT_TAIL(&zdplane_info
.dg_providers_q
, p
,
2854 if (IS_ZEBRA_DEBUG_DPLANE
)
2855 zlog_debug("dplane: registered new provider '%s' (%u), prio %d",
2856 p
->dp_name
, p
->dp_id
, p
->dp_priority
);
2865 /* Accessors for provider attributes */
2866 const char *dplane_provider_get_name(const struct zebra_dplane_provider
*prov
)
2868 return prov
->dp_name
;
2871 uint32_t dplane_provider_get_id(const struct zebra_dplane_provider
*prov
)
2876 void *dplane_provider_get_data(const struct zebra_dplane_provider
*prov
)
2878 return prov
->dp_data
;
2881 int dplane_provider_get_work_limit(const struct zebra_dplane_provider
*prov
)
2883 return zdplane_info
.dg_updates_per_cycle
;
2886 /* Lock/unlock a provider's mutex - iff the provider was registered with
2887 * the THREADED flag.
2889 void dplane_provider_lock(struct zebra_dplane_provider
*prov
)
2891 if (dplane_provider_is_threaded(prov
))
2892 DPLANE_PROV_LOCK(prov
);
2895 void dplane_provider_unlock(struct zebra_dplane_provider
*prov
)
2897 if (dplane_provider_is_threaded(prov
))
2898 DPLANE_PROV_UNLOCK(prov
);
2902 * Dequeue and maintain associated counter
2904 struct zebra_dplane_ctx
*dplane_provider_dequeue_in_ctx(
2905 struct zebra_dplane_provider
*prov
)
2907 struct zebra_dplane_ctx
*ctx
= NULL
;
2909 dplane_provider_lock(prov
);
2911 ctx
= TAILQ_FIRST(&(prov
->dp_ctx_in_q
));
2913 TAILQ_REMOVE(&(prov
->dp_ctx_in_q
), ctx
, zd_q_entries
);
2915 atomic_fetch_sub_explicit(&prov
->dp_in_queued
, 1,
2916 memory_order_relaxed
);
2919 dplane_provider_unlock(prov
);
2925 * Dequeue work to a list, return count
2927 int dplane_provider_dequeue_in_list(struct zebra_dplane_provider
*prov
,
2928 struct dplane_ctx_q
*listp
)
2931 struct zebra_dplane_ctx
*ctx
;
2933 limit
= zdplane_info
.dg_updates_per_cycle
;
2935 dplane_provider_lock(prov
);
2937 for (ret
= 0; ret
< limit
; ret
++) {
2938 ctx
= TAILQ_FIRST(&(prov
->dp_ctx_in_q
));
2940 TAILQ_REMOVE(&(prov
->dp_ctx_in_q
), ctx
, zd_q_entries
);
2942 TAILQ_INSERT_TAIL(listp
, ctx
, zd_q_entries
);
2949 atomic_fetch_sub_explicit(&prov
->dp_in_queued
, ret
,
2950 memory_order_relaxed
);
2952 dplane_provider_unlock(prov
);
2958 * Enqueue and maintain associated counter
2960 void dplane_provider_enqueue_out_ctx(struct zebra_dplane_provider
*prov
,
2961 struct zebra_dplane_ctx
*ctx
)
2963 dplane_provider_lock(prov
);
2965 TAILQ_INSERT_TAIL(&(prov
->dp_ctx_out_q
), ctx
,
2968 dplane_provider_unlock(prov
);
2970 atomic_fetch_add_explicit(&(prov
->dp_out_counter
), 1,
2971 memory_order_relaxed
);
2975 * Accessor for provider object
2977 bool dplane_provider_is_threaded(const struct zebra_dplane_provider
*prov
)
2979 return (prov
->dp_flags
& DPLANE_PROV_FLAG_THREADED
);
2983 * Internal helper that copies information from a zebra ns object; this is
2984 * called in the zebra main pthread context as part of dplane ctx init.
2986 static void dplane_info_from_zns(struct zebra_dplane_info
*ns_info
,
2987 struct zebra_ns
*zns
)
2989 ns_info
->ns_id
= zns
->ns_id
;
2991 #if defined(HAVE_NETLINK)
2992 ns_info
->is_cmd
= true;
2993 ns_info
->nls
= zns
->netlink_dplane
;
2994 #endif /* NETLINK */
2998 * Provider api to signal that work/events are available
2999 * for the dataplane pthread.
3001 int dplane_provider_work_ready(void)
3003 /* Note that during zebra startup, we may be offered work before
3004 * the dataplane pthread (and thread-master) are ready. We want to
3005 * enqueue the work, but the event-scheduling machinery may not be
3008 if (zdplane_info
.dg_run
) {
3009 thread_add_event(zdplane_info
.dg_master
,
3010 dplane_thread_loop
, NULL
, 0,
3011 &zdplane_info
.dg_t_update
);
3018 * Enqueue a context directly to zebra main.
3020 void dplane_provider_enqueue_to_zebra(struct zebra_dplane_ctx
*ctx
)
3022 struct dplane_ctx_q temp_list
;
3024 /* Zebra's api takes a list, so we need to use a temporary list */
3025 TAILQ_INIT(&temp_list
);
3027 TAILQ_INSERT_TAIL(&temp_list
, ctx
, zd_q_entries
);
3028 (zdplane_info
.dg_results_cb
)(&temp_list
);
3032 * Kernel dataplane provider
3036 * Handler for kernel LSP updates
3038 static enum zebra_dplane_result
3039 kernel_dplane_lsp_update(struct zebra_dplane_ctx
*ctx
)
3041 enum zebra_dplane_result res
;
3043 /* Call into the synchronous kernel-facing code here */
3044 res
= kernel_lsp_update(ctx
);
3046 if (res
!= ZEBRA_DPLANE_REQUEST_SUCCESS
)
3047 atomic_fetch_add_explicit(
3048 &zdplane_info
.dg_lsp_errors
, 1,
3049 memory_order_relaxed
);
3055 * Handler for kernel pseudowire updates
3057 static enum zebra_dplane_result
3058 kernel_dplane_pw_update(struct zebra_dplane_ctx
*ctx
)
3060 enum zebra_dplane_result res
;
3062 if (IS_ZEBRA_DEBUG_DPLANE_DETAIL
)
3063 zlog_debug("Dplane pw %s: op %s af %d loc: %u rem: %u",
3064 dplane_ctx_get_ifname(ctx
),
3065 dplane_op2str(ctx
->zd_op
),
3066 dplane_ctx_get_pw_af(ctx
),
3067 dplane_ctx_get_pw_local_label(ctx
),
3068 dplane_ctx_get_pw_remote_label(ctx
));
3070 res
= kernel_pw_update(ctx
);
3072 if (res
!= ZEBRA_DPLANE_REQUEST_SUCCESS
)
3073 atomic_fetch_add_explicit(
3074 &zdplane_info
.dg_pw_errors
, 1,
3075 memory_order_relaxed
);
3081 * Handler for kernel route updates
3083 static enum zebra_dplane_result
3084 kernel_dplane_route_update(struct zebra_dplane_ctx
*ctx
)
3086 enum zebra_dplane_result res
;
3088 if (IS_ZEBRA_DEBUG_DPLANE_DETAIL
) {
3089 char dest_str
[PREFIX_STRLEN
];
3091 prefix2str(dplane_ctx_get_dest(ctx
),
3092 dest_str
, sizeof(dest_str
));
3094 zlog_debug("%u:%s Dplane route update ctx %p op %s",
3095 dplane_ctx_get_vrf(ctx
), dest_str
,
3096 ctx
, dplane_op2str(dplane_ctx_get_op(ctx
)));
3099 /* Call into the synchronous kernel-facing code here */
3100 res
= kernel_route_update(ctx
);
3102 if (res
!= ZEBRA_DPLANE_REQUEST_SUCCESS
)
3103 atomic_fetch_add_explicit(
3104 &zdplane_info
.dg_route_errors
, 1,
3105 memory_order_relaxed
);
3111 * Handler for kernel-facing interface address updates
3113 static enum zebra_dplane_result
3114 kernel_dplane_address_update(struct zebra_dplane_ctx
*ctx
)
3116 enum zebra_dplane_result res
;
3118 if (IS_ZEBRA_DEBUG_DPLANE_DETAIL
) {
3119 char dest_str
[PREFIX_STRLEN
];
3121 prefix2str(dplane_ctx_get_intf_addr(ctx
), dest_str
,
3124 zlog_debug("Dplane intf %s, idx %u, addr %s",
3125 dplane_op2str(dplane_ctx_get_op(ctx
)),
3126 dplane_ctx_get_ifindex(ctx
), dest_str
);
3129 res
= kernel_address_update_ctx(ctx
);
3131 if (res
!= ZEBRA_DPLANE_REQUEST_SUCCESS
)
3132 atomic_fetch_add_explicit(&zdplane_info
.dg_intf_addr_errors
,
3133 1, memory_order_relaxed
);
3139 * kernel_dplane_nexthop_update() - Handler for kernel nexthop updates
3141 * @ctx: Dataplane context
3143 * Return: Dataplane result flag
3145 static enum zebra_dplane_result
3146 kernel_dplane_nexthop_update(struct zebra_dplane_ctx
*ctx
)
3148 enum zebra_dplane_result res
;
3150 if (IS_ZEBRA_DEBUG_DPLANE_DETAIL
) {
3151 zlog_debug("ID (%u) Dplane nexthop update ctx %p op %s",
3152 dplane_ctx_get_nhe_id(ctx
), ctx
,
3153 dplane_op2str(dplane_ctx_get_op(ctx
)));
3156 res
= kernel_nexthop_update(ctx
);
3158 if (res
!= ZEBRA_DPLANE_REQUEST_SUCCESS
)
3159 atomic_fetch_add_explicit(&zdplane_info
.dg_nexthop_errors
, 1,
3160 memory_order_relaxed
);
3166 * Handler for kernel-facing EVPN MAC address updates
3168 static enum zebra_dplane_result
3169 kernel_dplane_mac_update(struct zebra_dplane_ctx
*ctx
)
3171 enum zebra_dplane_result res
;
3173 if (IS_ZEBRA_DEBUG_DPLANE_DETAIL
) {
3174 char buf
[ETHER_ADDR_STRLEN
];
3176 prefix_mac2str(dplane_ctx_mac_get_addr(ctx
), buf
,
3179 zlog_debug("Dplane %s, mac %s, ifindex %u",
3180 dplane_op2str(dplane_ctx_get_op(ctx
)),
3181 buf
, dplane_ctx_get_ifindex(ctx
));
3184 res
= kernel_mac_update_ctx(ctx
);
3186 if (res
!= ZEBRA_DPLANE_REQUEST_SUCCESS
)
3187 atomic_fetch_add_explicit(&zdplane_info
.dg_mac_errors
,
3188 1, memory_order_relaxed
);
3194 * Handler for kernel-facing EVPN neighbor updates
3196 static enum zebra_dplane_result
3197 kernel_dplane_neigh_update(struct zebra_dplane_ctx
*ctx
)
3199 enum zebra_dplane_result res
;
3201 if (IS_ZEBRA_DEBUG_DPLANE_DETAIL
) {
3202 char buf
[PREFIX_STRLEN
];
3204 ipaddr2str(dplane_ctx_neigh_get_ipaddr(ctx
), buf
,
3207 zlog_debug("Dplane %s, ip %s, ifindex %u",
3208 dplane_op2str(dplane_ctx_get_op(ctx
)),
3209 buf
, dplane_ctx_get_ifindex(ctx
));
3212 res
= kernel_neigh_update_ctx(ctx
);
3214 if (res
!= ZEBRA_DPLANE_REQUEST_SUCCESS
)
3215 atomic_fetch_add_explicit(&zdplane_info
.dg_neigh_errors
,
3216 1, memory_order_relaxed
);
3222 * Kernel provider callback
3224 static int kernel_dplane_process_func(struct zebra_dplane_provider
*prov
)
3226 enum zebra_dplane_result res
;
3227 struct zebra_dplane_ctx
*ctx
;
3230 limit
= dplane_provider_get_work_limit(prov
);
3232 if (IS_ZEBRA_DEBUG_DPLANE_DETAIL
)
3233 zlog_debug("dplane provider '%s': processing",
3234 dplane_provider_get_name(prov
));
3236 for (counter
= 0; counter
< limit
; counter
++) {
3238 ctx
= dplane_provider_dequeue_in_ctx(prov
);
3242 /* A previous provider plugin may have asked to skip the
3245 if (dplane_ctx_is_skip_kernel(ctx
)) {
3246 res
= ZEBRA_DPLANE_REQUEST_SUCCESS
;
3250 /* Dispatch to appropriate kernel-facing apis */
3251 switch (dplane_ctx_get_op(ctx
)) {
3253 case DPLANE_OP_ROUTE_INSTALL
:
3254 case DPLANE_OP_ROUTE_UPDATE
:
3255 case DPLANE_OP_ROUTE_DELETE
:
3256 res
= kernel_dplane_route_update(ctx
);
3259 case DPLANE_OP_NH_INSTALL
:
3260 case DPLANE_OP_NH_UPDATE
:
3261 case DPLANE_OP_NH_DELETE
:
3262 res
= kernel_dplane_nexthop_update(ctx
);
3265 case DPLANE_OP_LSP_INSTALL
:
3266 case DPLANE_OP_LSP_UPDATE
:
3267 case DPLANE_OP_LSP_DELETE
:
3268 res
= kernel_dplane_lsp_update(ctx
);
3271 case DPLANE_OP_PW_INSTALL
:
3272 case DPLANE_OP_PW_UNINSTALL
:
3273 res
= kernel_dplane_pw_update(ctx
);
3276 case DPLANE_OP_ADDR_INSTALL
:
3277 case DPLANE_OP_ADDR_UNINSTALL
:
3278 res
= kernel_dplane_address_update(ctx
);
3281 case DPLANE_OP_MAC_INSTALL
:
3282 case DPLANE_OP_MAC_DELETE
:
3283 res
= kernel_dplane_mac_update(ctx
);
3286 case DPLANE_OP_NEIGH_INSTALL
:
3287 case DPLANE_OP_NEIGH_UPDATE
:
3288 case DPLANE_OP_NEIGH_DELETE
:
3289 case DPLANE_OP_VTEP_ADD
:
3290 case DPLANE_OP_VTEP_DELETE
:
3291 res
= kernel_dplane_neigh_update(ctx
);
3294 /* Ignore 'notifications' - no-op */
3295 case DPLANE_OP_SYS_ROUTE_ADD
:
3296 case DPLANE_OP_SYS_ROUTE_DELETE
:
3297 case DPLANE_OP_ROUTE_NOTIFY
:
3298 case DPLANE_OP_LSP_NOTIFY
:
3299 res
= ZEBRA_DPLANE_REQUEST_SUCCESS
;
3303 atomic_fetch_add_explicit(
3304 &zdplane_info
.dg_other_errors
, 1,
3305 memory_order_relaxed
);
3307 res
= ZEBRA_DPLANE_REQUEST_FAILURE
;
3312 dplane_ctx_set_status(ctx
, res
);
3314 dplane_provider_enqueue_out_ctx(prov
, ctx
);
3317 /* Ensure that we'll run the work loop again if there's still
3320 if (counter
>= limit
) {
3321 if (IS_ZEBRA_DEBUG_DPLANE_DETAIL
)
3322 zlog_debug("dplane provider '%s' reached max updates %d",
3323 dplane_provider_get_name(prov
), counter
);
3325 atomic_fetch_add_explicit(&zdplane_info
.dg_update_yields
,
3326 1, memory_order_relaxed
);
3328 dplane_provider_work_ready();
3334 #if DPLANE_TEST_PROVIDER
3337 * Test dataplane provider plugin
3341 * Test provider process callback
3343 static int test_dplane_process_func(struct zebra_dplane_provider
*prov
)
3345 struct zebra_dplane_ctx
*ctx
;
3348 /* Just moving from 'in' queue to 'out' queue */
3350 if (IS_ZEBRA_DEBUG_DPLANE_DETAIL
)
3351 zlog_debug("dplane provider '%s': processing",
3352 dplane_provider_get_name(prov
));
3354 limit
= dplane_provider_get_work_limit(prov
);
3356 for (counter
= 0; counter
< limit
; counter
++) {
3358 ctx
= dplane_provider_dequeue_in_ctx(prov
);
3362 if (IS_ZEBRA_DEBUG_DPLANE_DETAIL
)
3363 zlog_debug("dplane provider '%s': op %s",
3364 dplane_provider_get_name(prov
),
3365 dplane_op2str(dplane_ctx_get_op(ctx
)));
3367 dplane_ctx_set_status(ctx
, ZEBRA_DPLANE_REQUEST_SUCCESS
);
3369 dplane_provider_enqueue_out_ctx(prov
, ctx
);
3372 if (IS_ZEBRA_DEBUG_DPLANE_DETAIL
)
3373 zlog_debug("dplane provider '%s': processed %d",
3374 dplane_provider_get_name(prov
), counter
);
3376 /* Ensure that we'll run the work loop again if there's still
3379 if (counter
>= limit
)
3380 dplane_provider_work_ready();
3386 * Test provider shutdown/fini callback
3388 static int test_dplane_shutdown_func(struct zebra_dplane_provider
*prov
,
3391 if (IS_ZEBRA_DEBUG_DPLANE
)
3392 zlog_debug("dplane provider '%s': %sshutdown",
3393 dplane_provider_get_name(prov
),
3394 early
? "early " : "");
3398 #endif /* DPLANE_TEST_PROVIDER */
3401 * Register default kernel provider
3403 static void dplane_provider_init(void)
3407 ret
= dplane_provider_register("Kernel",
3409 DPLANE_PROV_FLAGS_DEFAULT
, NULL
,
3410 kernel_dplane_process_func
,
3415 zlog_err("Unable to register kernel dplane provider: %d",
3418 #if DPLANE_TEST_PROVIDER
3419 /* Optional test provider ... */
3420 ret
= dplane_provider_register("Test",
3421 DPLANE_PRIO_PRE_KERNEL
,
3422 DPLANE_PROV_FLAGS_DEFAULT
, NULL
,
3423 test_dplane_process_func
,
3424 test_dplane_shutdown_func
,
3425 NULL
/* data */, NULL
);
3428 zlog_err("Unable to register test dplane provider: %d",
3430 #endif /* DPLANE_TEST_PROVIDER */
3433 /* Indicates zebra shutdown/exit is in progress. Some operations may be
3434 * simplified or skipped during shutdown processing.
3436 bool dplane_is_in_shutdown(void)
3438 return zdplane_info
.dg_is_shutdown
;
3442 * Early or pre-shutdown, de-init notification api. This runs pretty
3443 * early during zebra shutdown, as a signal to stop new work and prepare
3444 * for updates generated by shutdown/cleanup activity, as zebra tries to
3445 * remove everything it's responsible for.
3446 * NB: This runs in the main zebra pthread context.
3448 void zebra_dplane_pre_finish(void)
3450 if (IS_ZEBRA_DEBUG_DPLANE
)
3451 zlog_debug("Zebra dataplane pre-fini called");
3453 zdplane_info
.dg_is_shutdown
= true;
3455 /* TODO -- Notify provider(s) of pending shutdown */
3459 * Utility to determine whether work remains enqueued within the dplane;
3460 * used during system shutdown processing.
3462 static bool dplane_work_pending(void)
3465 struct zebra_dplane_ctx
*ctx
;
3466 struct zebra_dplane_provider
*prov
;
3468 /* TODO -- just checking incoming/pending work for now, must check
3473 ctx
= TAILQ_FIRST(&zdplane_info
.dg_update_ctx_q
);
3474 prov
= TAILQ_FIRST(&zdplane_info
.dg_providers_q
);
3485 dplane_provider_lock(prov
);
3487 ctx
= TAILQ_FIRST(&(prov
->dp_ctx_in_q
));
3489 ctx
= TAILQ_FIRST(&(prov
->dp_ctx_out_q
));
3491 dplane_provider_unlock(prov
);
3497 prov
= TAILQ_NEXT(prov
, dp_prov_link
);
3509 * Shutdown-time intermediate callback, used to determine when all pending
3510 * in-flight updates are done. If there's still work to do, reschedules itself.
3511 * If all work is done, schedules an event to the main zebra thread for
3512 * final zebra shutdown.
3513 * This runs in the dplane pthread context.
3515 static int dplane_check_shutdown_status(struct thread
*event
)
3517 if (IS_ZEBRA_DEBUG_DPLANE
)
3518 zlog_debug("Zebra dataplane shutdown status check called");
3520 if (dplane_work_pending()) {
3521 /* Reschedule dplane check on a short timer */
3522 thread_add_timer_msec(zdplane_info
.dg_master
,
3523 dplane_check_shutdown_status
,
3525 &zdplane_info
.dg_t_shutdown_check
);
3527 /* TODO - give up and stop waiting after a short time? */
3530 /* We appear to be done - schedule a final callback event
3531 * for the zebra main pthread.
3533 thread_add_event(zrouter
.master
, zebra_finalize
, NULL
, 0, NULL
);
3540 * Shutdown, de-init api. This runs pretty late during shutdown,
3541 * after zebra has tried to free/remove/uninstall all routes during shutdown.
3542 * At this point, dplane work may still remain to be done, so we can't just
3543 * blindly terminate. If there's still work to do, we'll periodically check
3544 * and when done, we'll enqueue a task to the zebra main thread for final
3545 * termination processing.
3547 * NB: This runs in the main zebra thread context.
3549 void zebra_dplane_finish(void)
3551 if (IS_ZEBRA_DEBUG_DPLANE
)
3552 zlog_debug("Zebra dataplane fini called");
3554 thread_add_event(zdplane_info
.dg_master
,
3555 dplane_check_shutdown_status
, NULL
, 0,
3556 &zdplane_info
.dg_t_shutdown_check
);
3560 * Main dataplane pthread event loop. The thread takes new incoming work
3561 * and offers it to the first provider. It then iterates through the
3562 * providers, taking complete work from each one and offering it
3563 * to the next in order. At each step, a limited number of updates are
3564 * processed during a cycle in order to provide some fairness.
3566 * This loop through the providers is only run once, so that the dataplane
3567 * pthread can look for other pending work - such as i/o work on behalf of
3570 static int dplane_thread_loop(struct thread
*event
)
3572 struct dplane_ctx_q work_list
;
3573 struct dplane_ctx_q error_list
;
3574 struct zebra_dplane_provider
*prov
;
3575 struct zebra_dplane_ctx
*ctx
, *tctx
;
3576 int limit
, counter
, error_counter
;
3577 uint64_t curr
, high
;
3579 /* Capture work limit per cycle */
3580 limit
= zdplane_info
.dg_updates_per_cycle
;
3582 /* Init temporary lists used to move contexts among providers */
3583 TAILQ_INIT(&work_list
);
3584 TAILQ_INIT(&error_list
);
3587 /* Check for zebra shutdown */
3588 if (!zdplane_info
.dg_run
)
3591 /* Dequeue some incoming work from zebra (if any) onto the temporary
3596 /* Locate initial registered provider */
3597 prov
= TAILQ_FIRST(&zdplane_info
.dg_providers_q
);
3599 /* Move new work from incoming list to temp list */
3600 for (counter
= 0; counter
< limit
; counter
++) {
3601 ctx
= TAILQ_FIRST(&zdplane_info
.dg_update_ctx_q
);
3603 TAILQ_REMOVE(&zdplane_info
.dg_update_ctx_q
, ctx
,
3606 ctx
->zd_provider
= prov
->dp_id
;
3608 TAILQ_INSERT_TAIL(&work_list
, ctx
, zd_q_entries
);
3616 atomic_fetch_sub_explicit(&zdplane_info
.dg_routes_queued
, counter
,
3617 memory_order_relaxed
);
3619 if (IS_ZEBRA_DEBUG_DPLANE_DETAIL
)
3620 zlog_debug("dplane: incoming new work counter: %d", counter
);
3622 /* Iterate through the registered providers, offering new incoming
3623 * work. If the provider has outgoing work in its queue, take that
3624 * work for the next provider
3628 /* At each iteration, the temporary work list has 'counter'
3631 if (IS_ZEBRA_DEBUG_DPLANE_DETAIL
)
3632 zlog_debug("dplane enqueues %d new work to provider '%s'",
3633 counter
, dplane_provider_get_name(prov
));
3635 /* Capture current provider id in each context; check for
3638 TAILQ_FOREACH_SAFE(ctx
, &work_list
, zd_q_entries
, tctx
) {
3639 if (dplane_ctx_get_status(ctx
) ==
3640 ZEBRA_DPLANE_REQUEST_SUCCESS
) {
3641 ctx
->zd_provider
= prov
->dp_id
;
3644 * TODO -- improve error-handling: recirc
3645 * errors backwards so that providers can
3646 * 'undo' their work (if they want to)
3649 /* Move to error list; will be returned
3652 TAILQ_REMOVE(&work_list
, ctx
, zd_q_entries
);
3653 TAILQ_INSERT_TAIL(&error_list
,
3659 /* Enqueue new work to the provider */
3660 dplane_provider_lock(prov
);
3662 if (TAILQ_FIRST(&work_list
))
3663 TAILQ_CONCAT(&(prov
->dp_ctx_in_q
), &work_list
,
3666 atomic_fetch_add_explicit(&prov
->dp_in_counter
, counter
,
3667 memory_order_relaxed
);
3668 atomic_fetch_add_explicit(&prov
->dp_in_queued
, counter
,
3669 memory_order_relaxed
);
3670 curr
= atomic_load_explicit(&prov
->dp_in_queued
,
3671 memory_order_relaxed
);
3672 high
= atomic_load_explicit(&prov
->dp_in_max
,
3673 memory_order_relaxed
);
3675 atomic_store_explicit(&prov
->dp_in_max
, curr
,
3676 memory_order_relaxed
);
3678 dplane_provider_unlock(prov
);
3680 /* Reset the temp list (though the 'concat' may have done this
3681 * already), and the counter
3683 TAILQ_INIT(&work_list
);
3686 /* Call into the provider code. Note that this is
3687 * unconditional: we offer to do work even if we don't enqueue
3690 (*prov
->dp_fp
)(prov
);
3692 /* Check for zebra shutdown */
3693 if (!zdplane_info
.dg_run
)
3696 /* Dequeue completed work from the provider */
3697 dplane_provider_lock(prov
);
3699 while (counter
< limit
) {
3700 ctx
= TAILQ_FIRST(&(prov
->dp_ctx_out_q
));
3702 TAILQ_REMOVE(&(prov
->dp_ctx_out_q
), ctx
,
3705 TAILQ_INSERT_TAIL(&work_list
,
3712 dplane_provider_unlock(prov
);
3714 if (IS_ZEBRA_DEBUG_DPLANE_DETAIL
)
3715 zlog_debug("dplane dequeues %d completed work from provider %s",
3716 counter
, dplane_provider_get_name(prov
));
3718 /* Locate next provider */
3720 prov
= TAILQ_NEXT(prov
, dp_prov_link
);
3724 /* After all providers have been serviced, enqueue any completed
3725 * work and any errors back to zebra so it can process the results.
3727 if (IS_ZEBRA_DEBUG_DPLANE_DETAIL
)
3728 zlog_debug("dplane has %d completed, %d errors, for zebra main",
3729 counter
, error_counter
);
3732 * Hand lists through the api to zebra main,
3733 * to reduce the number of lock/unlock cycles
3736 /* Call through to zebra main */
3737 (zdplane_info
.dg_results_cb
)(&error_list
);
3739 TAILQ_INIT(&error_list
);
3741 /* Call through to zebra main */
3742 (zdplane_info
.dg_results_cb
)(&work_list
);
3744 TAILQ_INIT(&work_list
);
3751 * Final phase of shutdown, after all work enqueued to dplane has been
3752 * processed. This is called from the zebra main pthread context.
3754 void zebra_dplane_shutdown(void)
3756 if (IS_ZEBRA_DEBUG_DPLANE
)
3757 zlog_debug("Zebra dataplane shutdown called");
3759 /* Stop dplane thread, if it's running */
3761 zdplane_info
.dg_run
= false;
3763 if (zdplane_info
.dg_t_update
)
3764 thread_cancel_async(zdplane_info
.dg_t_update
->master
,
3765 &zdplane_info
.dg_t_update
, NULL
);
3767 frr_pthread_stop(zdplane_info
.dg_pthread
, NULL
);
3769 /* Destroy pthread */
3770 frr_pthread_destroy(zdplane_info
.dg_pthread
);
3771 zdplane_info
.dg_pthread
= NULL
;
3772 zdplane_info
.dg_master
= NULL
;
3774 /* TODO -- Notify provider(s) of final shutdown */
3776 /* TODO -- Clean-up provider objects */
3778 /* TODO -- Clean queue(s), free memory */
3782 * Initialize the dataplane module during startup, internal/private version
3784 static void zebra_dplane_init_internal(void)
3786 memset(&zdplane_info
, 0, sizeof(zdplane_info
));
3788 pthread_mutex_init(&zdplane_info
.dg_mutex
, NULL
);
3790 TAILQ_INIT(&zdplane_info
.dg_update_ctx_q
);
3791 TAILQ_INIT(&zdplane_info
.dg_providers_q
);
3793 zdplane_info
.dg_updates_per_cycle
= DPLANE_DEFAULT_NEW_WORK
;
3795 zdplane_info
.dg_max_queued_updates
= DPLANE_DEFAULT_MAX_QUEUED
;
3797 /* Register default kernel 'provider' during init */
3798 dplane_provider_init();
3802 * Start the dataplane pthread. This step needs to be run later than the
3803 * 'init' step, in case zebra has fork-ed.
3805 void zebra_dplane_start(void)
3807 struct zebra_dplane_provider
*prov
;
3808 struct frr_pthread_attr pattr
= {
3809 .start
= frr_pthread_attr_default
.start
,
3810 .stop
= frr_pthread_attr_default
.stop
3813 /* Start dataplane pthread */
3815 zdplane_info
.dg_pthread
= frr_pthread_new(&pattr
, "Zebra dplane thread",
3818 zdplane_info
.dg_master
= zdplane_info
.dg_pthread
->master
;
3820 zdplane_info
.dg_run
= true;
3822 /* Enqueue an initial event for the dataplane pthread */
3823 thread_add_event(zdplane_info
.dg_master
, dplane_thread_loop
, NULL
, 0,
3824 &zdplane_info
.dg_t_update
);
3826 /* Call start callbacks for registered providers */
3829 prov
= TAILQ_FIRST(&zdplane_info
.dg_providers_q
);
3835 (prov
->dp_start
)(prov
);
3837 /* Locate next provider */
3839 prov
= TAILQ_NEXT(prov
, dp_prov_link
);
3843 frr_pthread_run(zdplane_info
.dg_pthread
, NULL
);
3847 * Initialize the dataplane module at startup; called by zebra rib_init()
3849 void zebra_dplane_init(int (*results_fp
)(struct dplane_ctx_q
*))
3851 zebra_dplane_init_internal();
3852 zdplane_info
.dg_results_cb
= results_fp
;