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ea1c14f6 MS |
1 | /* |
2 | * Zebra dataplane layer. | |
3 | * Copyright (c) 2018 Volta Networks, Inc. | |
4 | * | |
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. | |
9 | * | |
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. | |
14 | * | |
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 | |
18 | */ | |
19 | ||
2618a52e DL |
20 | #ifdef HAVE_CONFIG_H |
21 | #include "config.h" | |
22 | #endif | |
23 | ||
18c37974 | 24 | #include "lib/libfrr.h" |
1d11b21f MS |
25 | #include "lib/debug.h" |
26 | #include "lib/frratomic.h" | |
7cdb1a84 | 27 | #include "lib/frr_pthread.h" |
1d11b21f | 28 | #include "lib/memory.h" |
7cdb1a84 | 29 | #include "lib/queue.h" |
1d11b21f | 30 | #include "lib/zebra.h" |
1485bbe7 | 31 | #include "zebra/zebra_router.h" |
7cdb1a84 | 32 | #include "zebra/zebra_memory.h" |
3801e764 | 33 | #include "zebra/zebra_router.h" |
7cdb1a84 MS |
34 | #include "zebra/zebra_dplane.h" |
35 | #include "zebra/rt.h" | |
36 | #include "zebra/debug.h" | |
37 | ||
38 | /* Memory type for context blocks */ | |
c1344b54 DL |
39 | DEFINE_MTYPE_STATIC(ZEBRA, DP_CTX, "Zebra DPlane Ctx") |
40 | DEFINE_MTYPE_STATIC(ZEBRA, DP_PROV, "Zebra DPlane Provider") | |
7cdb1a84 MS |
41 | |
42 | #ifndef AOK | |
43 | # define AOK 0 | |
44 | #endif | |
45 | ||
e5a60d82 MS |
46 | /* Enable test dataplane provider */ |
47 | /*#define DPLANE_TEST_PROVIDER 1 */ | |
48 | ||
91f16812 MS |
49 | /* Default value for max queued incoming updates */ |
50 | const uint32_t DPLANE_DEFAULT_MAX_QUEUED = 200; | |
51 | ||
c831033f MS |
52 | /* Default value for new work per cycle */ |
53 | const uint32_t DPLANE_DEFAULT_NEW_WORK = 100; | |
54 | ||
7cdb1a84 MS |
55 | /* Validation check macro for context blocks */ |
56 | /* #define DPLANE_DEBUG 1 */ | |
57 | ||
58 | #ifdef DPLANE_DEBUG | |
59 | ||
25779064 MS |
60 | # define DPLANE_CTX_VALID(p) \ |
61 | assert((p) != NULL) | |
7cdb1a84 MS |
62 | |
63 | #else | |
64 | ||
5709131c | 65 | # define DPLANE_CTX_VALID(p) |
7cdb1a84 MS |
66 | |
67 | #endif /* DPLANE_DEBUG */ | |
68 | ||
69 | /* | |
0f461727 | 70 | * Route information captured for route updates. |
7cdb1a84 | 71 | */ |
0f461727 | 72 | struct dplane_route_info { |
7cdb1a84 MS |
73 | |
74 | /* Dest and (optional) source prefixes */ | |
75 | struct prefix zd_dest; | |
76 | struct prefix zd_src; | |
77 | ||
0f461727 MS |
78 | afi_t zd_afi; |
79 | safi_t zd_safi; | |
7cdb1a84 MS |
80 | |
81 | int zd_type; | |
82 | int zd_old_type; | |
83 | ||
7cdb1a84 MS |
84 | route_tag_t zd_tag; |
85 | route_tag_t zd_old_tag; | |
86 | uint32_t zd_metric; | |
01ce7cba | 87 | uint32_t zd_old_metric; |
0f461727 | 88 | |
7cdb1a84 MS |
89 | uint16_t zd_instance; |
90 | uint16_t zd_old_instance; | |
91 | ||
92 | uint8_t zd_distance; | |
93 | uint8_t zd_old_distance; | |
94 | ||
95 | uint32_t zd_mtu; | |
96 | uint32_t zd_nexthop_mtu; | |
97 | ||
7cdb1a84 MS |
98 | /* Nexthops */ |
99 | struct nexthop_group zd_ng; | |
100 | ||
4dfd7a02 | 101 | /* "Previous" nexthops, used only in route updates without netlink */ |
01ce7cba MS |
102 | struct nexthop_group zd_old_ng; |
103 | ||
b8e0423d MS |
104 | /* TODO -- use fixed array of nexthops, to avoid mallocs? */ |
105 | ||
0f461727 MS |
106 | }; |
107 | ||
d613b8e1 MS |
108 | /* |
109 | * Pseudowire info for the dataplane | |
110 | */ | |
111 | struct dplane_pw_info { | |
112 | char ifname[IF_NAMESIZE]; | |
113 | ifindex_t ifindex; | |
114 | int type; | |
115 | int af; | |
116 | int status; | |
117 | uint32_t flags; | |
16d69787 | 118 | union g_addr dest; |
d613b8e1 MS |
119 | mpls_label_t local_label; |
120 | mpls_label_t remote_label; | |
121 | ||
16d69787 MS |
122 | /* Nexthops */ |
123 | struct nexthop_group nhg; | |
124 | ||
d613b8e1 MS |
125 | union pw_protocol_fields fields; |
126 | }; | |
127 | ||
a4a4802a MS |
128 | /* |
129 | * Interface/prefix info for the dataplane | |
130 | */ | |
131 | struct dplane_intf_info { | |
132 | ||
133 | char ifname[INTERFACE_NAMSIZ]; | |
134 | ifindex_t ifindex; | |
135 | ||
136 | uint32_t metric; | |
137 | uint32_t flags; | |
138 | ||
139 | #define DPLANE_INTF_CONNECTED (1 << 0) /* Connected peer, p2p */ | |
140 | #define DPLANE_INTF_SECONDARY (1 << 1) | |
64168803 MS |
141 | #define DPLANE_INTF_BROADCAST (1 << 2) |
142 | #define DPLANE_INTF_HAS_DEST (1 << 3) | |
143 | #define DPLANE_INTF_HAS_LABEL (1 << 4) | |
a4a4802a MS |
144 | |
145 | /* Interface address/prefix */ | |
146 | struct prefix prefix; | |
147 | ||
148 | /* Dest address, for p2p, or broadcast prefix */ | |
149 | struct prefix dest_prefix; | |
150 | ||
151 | char *label; | |
152 | char label_buf[32]; | |
153 | }; | |
154 | ||
0f461727 MS |
155 | /* |
156 | * The context block used to exchange info about route updates across | |
157 | * the boundary between the zebra main context (and pthread) and the | |
158 | * dataplane layer (and pthread). | |
159 | */ | |
160 | struct zebra_dplane_ctx { | |
161 | ||
162 | /* Operation code */ | |
163 | enum dplane_op_e zd_op; | |
164 | ||
165 | /* Status on return */ | |
166 | enum zebra_dplane_result zd_status; | |
167 | ||
168 | /* Dplane provider id */ | |
169 | uint32_t zd_provider; | |
170 | ||
171 | /* Flags - used by providers, e.g. */ | |
172 | int zd_flags; | |
173 | ||
174 | bool zd_is_update; | |
175 | ||
176 | uint32_t zd_seq; | |
177 | uint32_t zd_old_seq; | |
178 | ||
0024a559 MS |
179 | /* Some updates may be generated by notifications: allow the |
180 | * plugin to notice and ignore results from its own notifications. | |
181 | */ | |
182 | uint32_t zd_notif_provider; | |
183 | ||
0f461727 MS |
184 | /* TODO -- internal/sub-operation status? */ |
185 | enum zebra_dplane_result zd_remote_status; | |
186 | enum zebra_dplane_result zd_kernel_status; | |
187 | ||
188 | vrf_id_t zd_vrf_id; | |
189 | uint32_t zd_table_id; | |
190 | ||
a4a4802a | 191 | /* Support info for different kinds of updates */ |
0f461727 MS |
192 | union { |
193 | struct dplane_route_info rinfo; | |
194 | zebra_lsp_t lsp; | |
d613b8e1 | 195 | struct dplane_pw_info pw; |
a4a4802a | 196 | struct dplane_intf_info intf; |
0f461727 MS |
197 | } u; |
198 | ||
199 | /* Namespace info, used especially for netlink kernel communication */ | |
200 | struct zebra_dplane_info zd_ns_info; | |
201 | ||
7cdb1a84 | 202 | /* Embedded list linkage */ |
25779064 | 203 | TAILQ_ENTRY(zebra_dplane_ctx) zd_q_entries; |
7cdb1a84 MS |
204 | }; |
205 | ||
c831033f MS |
206 | /* Flag that can be set by a pre-kernel provider as a signal that an update |
207 | * should bypass the kernel. | |
208 | */ | |
209 | #define DPLANE_CTX_FLAG_NO_KERNEL 0x01 | |
210 | ||
211 | ||
7cdb1a84 MS |
212 | /* |
213 | * Registration block for one dataplane provider. | |
214 | */ | |
25779064 | 215 | struct zebra_dplane_provider { |
7cdb1a84 MS |
216 | /* Name */ |
217 | char dp_name[DPLANE_PROVIDER_NAMELEN + 1]; | |
218 | ||
219 | /* Priority, for ordering among providers */ | |
220 | uint8_t dp_priority; | |
221 | ||
222 | /* Id value */ | |
223 | uint32_t dp_id; | |
224 | ||
c831033f MS |
225 | /* Mutex */ |
226 | pthread_mutex_t dp_mutex; | |
227 | ||
228 | /* Plugin-provided extra data */ | |
229 | void *dp_data; | |
230 | ||
231 | /* Flags */ | |
232 | int dp_flags; | |
233 | ||
1dd4ea8a MS |
234 | int (*dp_start)(struct zebra_dplane_provider *prov); |
235 | ||
4c206c8f | 236 | int (*dp_fp)(struct zebra_dplane_provider *prov); |
7cdb1a84 | 237 | |
4c206c8f | 238 | int (*dp_fini)(struct zebra_dplane_provider *prov, bool early_p); |
18c37974 | 239 | |
0545c373 | 240 | _Atomic uint32_t dp_in_counter; |
c9d17fe8 | 241 | _Atomic uint32_t dp_in_queued; |
c831033f MS |
242 | _Atomic uint32_t dp_in_max; |
243 | _Atomic uint32_t dp_out_counter; | |
c9d17fe8 | 244 | _Atomic uint32_t dp_out_queued; |
c831033f | 245 | _Atomic uint32_t dp_out_max; |
0545c373 | 246 | _Atomic uint32_t dp_error_counter; |
1d11b21f | 247 | |
c831033f MS |
248 | /* Queue of contexts inbound to the provider */ |
249 | struct dplane_ctx_q dp_ctx_in_q; | |
250 | ||
251 | /* Queue of completed contexts outbound from the provider back | |
252 | * towards the dataplane module. | |
253 | */ | |
254 | struct dplane_ctx_q dp_ctx_out_q; | |
7cdb1a84 | 255 | |
c831033f MS |
256 | /* Embedded list linkage for provider objects */ |
257 | TAILQ_ENTRY(zebra_dplane_provider) dp_prov_link; | |
7cdb1a84 MS |
258 | }; |
259 | ||
260 | /* | |
261 | * Globals | |
262 | */ | |
25779064 | 263 | static struct zebra_dplane_globals { |
7cdb1a84 MS |
264 | /* Mutex to control access to dataplane components */ |
265 | pthread_mutex_t dg_mutex; | |
266 | ||
267 | /* Results callback registered by zebra 'core' */ | |
4c206c8f | 268 | int (*dg_results_cb)(struct dplane_ctx_q *ctxlist); |
7cdb1a84 | 269 | |
4dfd7a02 MS |
270 | /* Sentinel for beginning of shutdown */ |
271 | volatile bool dg_is_shutdown; | |
272 | ||
273 | /* Sentinel for end of shutdown */ | |
1d11b21f MS |
274 | volatile bool dg_run; |
275 | ||
7cdb1a84 | 276 | /* Route-update context queue inbound to the dataplane */ |
25779064 | 277 | TAILQ_HEAD(zdg_ctx_q, zebra_dplane_ctx) dg_route_ctx_q; |
7cdb1a84 MS |
278 | |
279 | /* Ordered list of providers */ | |
25779064 | 280 | TAILQ_HEAD(zdg_prov_q, zebra_dplane_provider) dg_providers_q; |
7cdb1a84 | 281 | |
1d11b21f | 282 | /* Counter used to assign internal ids to providers */ |
b8e0423d MS |
283 | uint32_t dg_provider_id; |
284 | ||
91f16812 MS |
285 | /* Limit number of pending, unprocessed updates */ |
286 | _Atomic uint32_t dg_max_queued_updates; | |
287 | ||
cf363e1b MS |
288 | /* Control whether system route notifications should be produced. */ |
289 | bool dg_sys_route_notifs; | |
290 | ||
c831033f MS |
291 | /* Limit number of new updates dequeued at once, to pace an |
292 | * incoming burst. | |
293 | */ | |
294 | uint32_t dg_updates_per_cycle; | |
295 | ||
0545c373 | 296 | _Atomic uint32_t dg_routes_in; |
1d11b21f | 297 | _Atomic uint32_t dg_routes_queued; |
4dfd7a02 | 298 | _Atomic uint32_t dg_routes_queued_max; |
0545c373 | 299 | _Atomic uint32_t dg_route_errors; |
16c628de MS |
300 | _Atomic uint32_t dg_other_errors; |
301 | ||
302 | _Atomic uint32_t dg_lsps_in; | |
16c628de MS |
303 | _Atomic uint32_t dg_lsp_errors; |
304 | ||
97d8d05a MS |
305 | _Atomic uint32_t dg_pws_in; |
306 | _Atomic uint32_t dg_pw_errors; | |
307 | ||
64168803 MS |
308 | _Atomic uint32_t dg_intf_addrs_in; |
309 | _Atomic uint32_t dg_intf_addr_errors; | |
310 | ||
c831033f | 311 | _Atomic uint32_t dg_update_yields; |
1d11b21f | 312 | |
d8c16a95 MS |
313 | /* Dataplane pthread */ |
314 | struct frr_pthread *dg_pthread; | |
315 | ||
7cdb1a84 MS |
316 | /* Event-delivery context 'master' for the dplane */ |
317 | struct thread_master *dg_master; | |
318 | ||
319 | /* Event/'thread' pointer for queued updates */ | |
320 | struct thread *dg_t_update; | |
321 | ||
4dfd7a02 MS |
322 | /* Event pointer for pending shutdown check loop */ |
323 | struct thread *dg_t_shutdown_check; | |
324 | ||
25779064 | 325 | } zdplane_info; |
7cdb1a84 MS |
326 | |
327 | /* | |
c831033f | 328 | * Lock and unlock for interactions with the zebra 'core' pthread |
7cdb1a84 | 329 | */ |
25779064 | 330 | #define DPLANE_LOCK() pthread_mutex_lock(&zdplane_info.dg_mutex) |
25779064 | 331 | #define DPLANE_UNLOCK() pthread_mutex_unlock(&zdplane_info.dg_mutex) |
7cdb1a84 | 332 | |
c831033f MS |
333 | |
334 | /* | |
335 | * Lock and unlock for individual providers | |
336 | */ | |
337 | #define DPLANE_PROV_LOCK(p) pthread_mutex_lock(&((p)->dp_mutex)) | |
338 | #define DPLANE_PROV_UNLOCK(p) pthread_mutex_unlock(&((p)->dp_mutex)) | |
339 | ||
7cdb1a84 | 340 | /* Prototypes */ |
c831033f | 341 | static int dplane_thread_loop(struct thread *event); |
62b8bb7a MS |
342 | static void dplane_info_from_zns(struct zebra_dplane_info *ns_info, |
343 | struct zebra_ns *zns); | |
16c628de MS |
344 | static enum zebra_dplane_result lsp_update_internal(zebra_lsp_t *lsp, |
345 | enum dplane_op_e op); | |
97d8d05a MS |
346 | static enum zebra_dplane_result pw_update_internal(struct zebra_pw *pw, |
347 | enum dplane_op_e op); | |
64168803 MS |
348 | static enum zebra_dplane_result intf_addr_update_internal( |
349 | const struct interface *ifp, const struct connected *ifc, | |
350 | enum dplane_op_e op); | |
7cdb1a84 MS |
351 | |
352 | /* | |
353 | * Public APIs | |
354 | */ | |
355 | ||
ad6aad4d MS |
356 | /* Obtain thread_master for dataplane thread */ |
357 | struct thread_master *dplane_get_thread_master(void) | |
358 | { | |
359 | return zdplane_info.dg_master; | |
360 | } | |
361 | ||
7cdb1a84 | 362 | /* |
b8e0423d | 363 | * Allocate a dataplane update context |
7cdb1a84 | 364 | */ |
593e4eb1 | 365 | struct zebra_dplane_ctx *dplane_ctx_alloc(void) |
7cdb1a84 | 366 | { |
25779064 | 367 | struct zebra_dplane_ctx *p; |
7cdb1a84 | 368 | |
b8e0423d MS |
369 | /* TODO -- just alloc'ing memory, but would like to maintain |
370 | * a pool | |
371 | */ | |
25779064 | 372 | p = XCALLOC(MTYPE_DP_CTX, sizeof(struct zebra_dplane_ctx)); |
7cdb1a84 | 373 | |
5709131c | 374 | return p; |
7cdb1a84 MS |
375 | } |
376 | ||
cf363e1b MS |
377 | /* Enable system route notifications */ |
378 | void dplane_enable_sys_route_notifs(void) | |
379 | { | |
380 | zdplane_info.dg_sys_route_notifs = true; | |
381 | } | |
382 | ||
7cdb1a84 | 383 | /* |
b8e0423d | 384 | * Free a dataplane results context. |
7cdb1a84 | 385 | */ |
25779064 | 386 | static void dplane_ctx_free(struct zebra_dplane_ctx **pctx) |
7cdb1a84 | 387 | { |
16c628de MS |
388 | if (pctx == NULL) |
389 | return; | |
7cdb1a84 | 390 | |
16c628de MS |
391 | DPLANE_CTX_VALID(*pctx); |
392 | ||
393 | /* TODO -- just freeing memory, but would like to maintain | |
394 | * a pool | |
395 | */ | |
396 | ||
397 | /* Some internal allocations may need to be freed, depending on | |
398 | * the type of info captured in the ctx. | |
399 | */ | |
400 | switch ((*pctx)->zd_op) { | |
401 | case DPLANE_OP_ROUTE_INSTALL: | |
402 | case DPLANE_OP_ROUTE_UPDATE: | |
403 | case DPLANE_OP_ROUTE_DELETE: | |
cf363e1b MS |
404 | case DPLANE_OP_SYS_ROUTE_ADD: |
405 | case DPLANE_OP_SYS_ROUTE_DELETE: | |
54818e3b | 406 | case DPLANE_OP_ROUTE_NOTIFY: |
b8e0423d | 407 | |
16c628de | 408 | /* Free allocated nexthops */ |
0f461727 | 409 | if ((*pctx)->u.rinfo.zd_ng.nexthop) { |
7cdb1a84 | 410 | /* This deals with recursive nexthops too */ |
0f461727 | 411 | nexthops_free((*pctx)->u.rinfo.zd_ng.nexthop); |
16c628de MS |
412 | |
413 | (*pctx)->u.rinfo.zd_ng.nexthop = NULL; | |
7cdb1a84 MS |
414 | } |
415 | ||
0f461727 | 416 | if ((*pctx)->u.rinfo.zd_old_ng.nexthop) { |
4dfd7a02 | 417 | /* This deals with recursive nexthops too */ |
0f461727 | 418 | nexthops_free((*pctx)->u.rinfo.zd_old_ng.nexthop); |
16c628de MS |
419 | |
420 | (*pctx)->u.rinfo.zd_old_ng.nexthop = NULL; | |
421 | } | |
422 | ||
423 | break; | |
424 | ||
425 | case DPLANE_OP_LSP_INSTALL: | |
426 | case DPLANE_OP_LSP_UPDATE: | |
427 | case DPLANE_OP_LSP_DELETE: | |
104e3ad9 | 428 | case DPLANE_OP_LSP_NOTIFY: |
16c628de MS |
429 | { |
430 | zebra_nhlfe_t *nhlfe, *next; | |
431 | ||
432 | /* Free allocated NHLFEs */ | |
433 | for (nhlfe = (*pctx)->u.lsp.nhlfe_list; nhlfe; nhlfe = next) { | |
434 | next = nhlfe->next; | |
435 | ||
436 | zebra_mpls_nhlfe_del(nhlfe); | |
01ce7cba MS |
437 | } |
438 | ||
16c628de MS |
439 | /* Clear pointers in lsp struct, in case we're cacheing |
440 | * free context structs. | |
441 | */ | |
442 | (*pctx)->u.lsp.nhlfe_list = NULL; | |
443 | (*pctx)->u.lsp.best_nhlfe = NULL; | |
444 | ||
445 | break; | |
446 | } | |
447 | ||
97d8d05a MS |
448 | case DPLANE_OP_PW_INSTALL: |
449 | case DPLANE_OP_PW_UNINSTALL: | |
16d69787 MS |
450 | /* Free allocated nexthops */ |
451 | if ((*pctx)->u.pw.nhg.nexthop) { | |
452 | /* This deals with recursive nexthops too */ | |
453 | nexthops_free((*pctx)->u.pw.nhg.nexthop); | |
454 | ||
455 | (*pctx)->u.pw.nhg.nexthop = NULL; | |
456 | } | |
457 | break; | |
458 | ||
a4a4802a MS |
459 | case DPLANE_OP_ADDR_INSTALL: |
460 | case DPLANE_OP_ADDR_UNINSTALL: | |
64168803 MS |
461 | /* Maybe free label string, if allocated */ |
462 | if ((*pctx)->u.intf.label != NULL && | |
463 | (*pctx)->u.intf.label != (*pctx)->u.intf.label_buf) { | |
464 | free((*pctx)->u.intf.label); | |
465 | (*pctx)->u.intf.label = NULL; | |
466 | } | |
467 | break; | |
468 | ||
16c628de MS |
469 | case DPLANE_OP_NONE: |
470 | break; | |
7cdb1a84 | 471 | } |
16c628de MS |
472 | |
473 | XFREE(MTYPE_DP_CTX, *pctx); | |
474 | *pctx = NULL; | |
7cdb1a84 MS |
475 | } |
476 | ||
477 | /* | |
478 | * Return a context block to the dplane module after processing | |
479 | */ | |
25779064 | 480 | void dplane_ctx_fini(struct zebra_dplane_ctx **pctx) |
7cdb1a84 | 481 | { |
14b0bc8e | 482 | /* TODO -- maintain pool; for now, just free */ |
7cdb1a84 MS |
483 | dplane_ctx_free(pctx); |
484 | } | |
485 | ||
486 | /* Enqueue a context block */ | |
25779064 MS |
487 | void dplane_ctx_enqueue_tail(struct dplane_ctx_q *q, |
488 | const struct zebra_dplane_ctx *ctx) | |
7cdb1a84 | 489 | { |
25779064 | 490 | TAILQ_INSERT_TAIL(q, (struct zebra_dplane_ctx *)ctx, zd_q_entries); |
7cdb1a84 MS |
491 | } |
492 | ||
14b0bc8e MS |
493 | /* Append a list of context blocks to another list */ |
494 | void dplane_ctx_list_append(struct dplane_ctx_q *to_list, | |
495 | struct dplane_ctx_q *from_list) | |
496 | { | |
497 | if (TAILQ_FIRST(from_list)) { | |
498 | TAILQ_CONCAT(to_list, from_list, zd_q_entries); | |
499 | ||
500 | /* And clear 'from' list */ | |
501 | TAILQ_INIT(from_list); | |
502 | } | |
503 | } | |
504 | ||
7cdb1a84 | 505 | /* Dequeue a context block from the head of a list */ |
68b375e0 | 506 | struct zebra_dplane_ctx *dplane_ctx_dequeue(struct dplane_ctx_q *q) |
7cdb1a84 | 507 | { |
25779064 | 508 | struct zebra_dplane_ctx *ctx = TAILQ_FIRST(q); |
5709131c MS |
509 | |
510 | if (ctx) | |
7cdb1a84 | 511 | TAILQ_REMOVE(q, ctx, zd_q_entries); |
7cdb1a84 | 512 | |
68b375e0 | 513 | return ctx; |
7cdb1a84 MS |
514 | } |
515 | ||
516 | /* | |
517 | * Accessors for information from the context object | |
518 | */ | |
25779064 MS |
519 | enum zebra_dplane_result dplane_ctx_get_status( |
520 | const struct zebra_dplane_ctx *ctx) | |
7cdb1a84 MS |
521 | { |
522 | DPLANE_CTX_VALID(ctx); | |
523 | ||
5709131c | 524 | return ctx->zd_status; |
7cdb1a84 MS |
525 | } |
526 | ||
c831033f MS |
527 | void dplane_ctx_set_status(struct zebra_dplane_ctx *ctx, |
528 | enum zebra_dplane_result status) | |
529 | { | |
530 | DPLANE_CTX_VALID(ctx); | |
531 | ||
532 | ctx->zd_status = status; | |
533 | } | |
534 | ||
535 | /* Retrieve last/current provider id */ | |
536 | uint32_t dplane_ctx_get_provider(const struct zebra_dplane_ctx *ctx) | |
537 | { | |
538 | DPLANE_CTX_VALID(ctx); | |
539 | return ctx->zd_provider; | |
540 | } | |
541 | ||
542 | /* Providers run before the kernel can control whether a kernel | |
543 | * update should be done. | |
544 | */ | |
545 | void dplane_ctx_set_skip_kernel(struct zebra_dplane_ctx *ctx) | |
546 | { | |
547 | DPLANE_CTX_VALID(ctx); | |
548 | ||
549 | SET_FLAG(ctx->zd_flags, DPLANE_CTX_FLAG_NO_KERNEL); | |
550 | } | |
551 | ||
552 | bool dplane_ctx_is_skip_kernel(const struct zebra_dplane_ctx *ctx) | |
553 | { | |
554 | DPLANE_CTX_VALID(ctx); | |
555 | ||
556 | return CHECK_FLAG(ctx->zd_flags, DPLANE_CTX_FLAG_NO_KERNEL); | |
557 | } | |
558 | ||
593e4eb1 MS |
559 | void dplane_ctx_set_op(struct zebra_dplane_ctx *ctx, enum dplane_op_e op) |
560 | { | |
561 | DPLANE_CTX_VALID(ctx); | |
562 | ctx->zd_op = op; | |
563 | } | |
564 | ||
25779064 | 565 | enum dplane_op_e dplane_ctx_get_op(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
566 | { |
567 | DPLANE_CTX_VALID(ctx); | |
568 | ||
5709131c | 569 | return ctx->zd_op; |
7cdb1a84 MS |
570 | } |
571 | ||
5709131c | 572 | const char *dplane_op2str(enum dplane_op_e op) |
7cdb1a84 MS |
573 | { |
574 | const char *ret = "UNKNOWN"; | |
575 | ||
5709131c | 576 | switch (op) { |
7cdb1a84 MS |
577 | case DPLANE_OP_NONE: |
578 | ret = "NONE"; | |
579 | break; | |
580 | ||
581 | /* Route update */ | |
582 | case DPLANE_OP_ROUTE_INSTALL: | |
583 | ret = "ROUTE_INSTALL"; | |
584 | break; | |
585 | case DPLANE_OP_ROUTE_UPDATE: | |
586 | ret = "ROUTE_UPDATE"; | |
587 | break; | |
588 | case DPLANE_OP_ROUTE_DELETE: | |
589 | ret = "ROUTE_DELETE"; | |
590 | break; | |
54818e3b MS |
591 | case DPLANE_OP_ROUTE_NOTIFY: |
592 | ret = "ROUTE_NOTIFY"; | |
593 | break; | |
7cdb1a84 | 594 | |
16c628de MS |
595 | case DPLANE_OP_LSP_INSTALL: |
596 | ret = "LSP_INSTALL"; | |
597 | break; | |
598 | case DPLANE_OP_LSP_UPDATE: | |
599 | ret = "LSP_UPDATE"; | |
600 | break; | |
601 | case DPLANE_OP_LSP_DELETE: | |
602 | ret = "LSP_DELETE"; | |
603 | break; | |
104e3ad9 MS |
604 | case DPLANE_OP_LSP_NOTIFY: |
605 | ret = "LSP_NOTIFY"; | |
606 | break; | |
16c628de | 607 | |
97d8d05a MS |
608 | case DPLANE_OP_PW_INSTALL: |
609 | ret = "PW_INSTALL"; | |
610 | break; | |
611 | case DPLANE_OP_PW_UNINSTALL: | |
612 | ret = "PW_UNINSTALL"; | |
613 | break; | |
614 | ||
cf363e1b MS |
615 | case DPLANE_OP_SYS_ROUTE_ADD: |
616 | ret = "SYS_ROUTE_ADD"; | |
617 | break; | |
618 | case DPLANE_OP_SYS_ROUTE_DELETE: | |
619 | ret = "SYS_ROUTE_DEL"; | |
620 | break; | |
a4a4802a MS |
621 | |
622 | case DPLANE_OP_ADDR_INSTALL: | |
623 | ret = "ADDR_INSTALL"; | |
624 | break; | |
625 | case DPLANE_OP_ADDR_UNINSTALL: | |
626 | ret = "ADDR_UNINSTALL"; | |
627 | break; | |
628 | ||
5b94ec50 | 629 | } |
7cdb1a84 | 630 | |
5709131c | 631 | return ret; |
7cdb1a84 MS |
632 | } |
633 | ||
f183e380 MS |
634 | const char *dplane_res2str(enum zebra_dplane_result res) |
635 | { | |
636 | const char *ret = "<Unknown>"; | |
637 | ||
638 | switch (res) { | |
639 | case ZEBRA_DPLANE_REQUEST_FAILURE: | |
640 | ret = "FAILURE"; | |
641 | break; | |
642 | case ZEBRA_DPLANE_REQUEST_QUEUED: | |
643 | ret = "QUEUED"; | |
644 | break; | |
645 | case ZEBRA_DPLANE_REQUEST_SUCCESS: | |
646 | ret = "SUCCESS"; | |
647 | break; | |
5b94ec50 | 648 | } |
f183e380 MS |
649 | |
650 | return ret; | |
651 | } | |
652 | ||
593e4eb1 MS |
653 | void dplane_ctx_set_dest(struct zebra_dplane_ctx *ctx, |
654 | const struct prefix *dest) | |
655 | { | |
656 | DPLANE_CTX_VALID(ctx); | |
657 | ||
658 | prefix_copy(&(ctx->u.rinfo.zd_dest), dest); | |
659 | } | |
660 | ||
25779064 | 661 | const struct prefix *dplane_ctx_get_dest(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
662 | { |
663 | DPLANE_CTX_VALID(ctx); | |
664 | ||
0f461727 | 665 | return &(ctx->u.rinfo.zd_dest); |
7cdb1a84 MS |
666 | } |
667 | ||
593e4eb1 MS |
668 | void dplane_ctx_set_src(struct zebra_dplane_ctx *ctx, const struct prefix *src) |
669 | { | |
670 | DPLANE_CTX_VALID(ctx); | |
671 | ||
672 | if (src) | |
673 | prefix_copy(&(ctx->u.rinfo.zd_src), src); | |
674 | else | |
675 | memset(&(ctx->u.rinfo.zd_src), 0, sizeof(struct prefix)); | |
676 | } | |
677 | ||
5709131c | 678 | /* Source prefix is a little special - return NULL for "no src prefix" */ |
25779064 | 679 | const struct prefix *dplane_ctx_get_src(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
680 | { |
681 | DPLANE_CTX_VALID(ctx); | |
682 | ||
0f461727 MS |
683 | if (ctx->u.rinfo.zd_src.prefixlen == 0 && |
684 | IN6_IS_ADDR_UNSPECIFIED(&(ctx->u.rinfo.zd_src.u.prefix6))) { | |
5709131c | 685 | return NULL; |
7cdb1a84 | 686 | } else { |
0f461727 | 687 | return &(ctx->u.rinfo.zd_src); |
7cdb1a84 MS |
688 | } |
689 | } | |
690 | ||
25779064 | 691 | bool dplane_ctx_is_update(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
692 | { |
693 | DPLANE_CTX_VALID(ctx); | |
694 | ||
5709131c | 695 | return ctx->zd_is_update; |
7cdb1a84 MS |
696 | } |
697 | ||
25779064 | 698 | uint32_t dplane_ctx_get_seq(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
699 | { |
700 | DPLANE_CTX_VALID(ctx); | |
701 | ||
5709131c | 702 | return ctx->zd_seq; |
7cdb1a84 MS |
703 | } |
704 | ||
25779064 | 705 | uint32_t dplane_ctx_get_old_seq(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
706 | { |
707 | DPLANE_CTX_VALID(ctx); | |
708 | ||
5709131c | 709 | return ctx->zd_old_seq; |
7cdb1a84 MS |
710 | } |
711 | ||
593e4eb1 MS |
712 | void dplane_ctx_set_vrf(struct zebra_dplane_ctx *ctx, vrf_id_t vrf) |
713 | { | |
714 | DPLANE_CTX_VALID(ctx); | |
715 | ||
716 | ctx->zd_vrf_id = vrf; | |
717 | } | |
718 | ||
25779064 | 719 | vrf_id_t dplane_ctx_get_vrf(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
720 | { |
721 | DPLANE_CTX_VALID(ctx); | |
722 | ||
5709131c | 723 | return ctx->zd_vrf_id; |
7cdb1a84 MS |
724 | } |
725 | ||
0024a559 MS |
726 | bool dplane_ctx_is_from_notif(const struct zebra_dplane_ctx *ctx) |
727 | { | |
728 | DPLANE_CTX_VALID(ctx); | |
729 | ||
730 | return (ctx->zd_notif_provider != 0); | |
731 | } | |
732 | ||
733 | uint32_t dplane_ctx_get_notif_provider(const struct zebra_dplane_ctx *ctx) | |
734 | { | |
735 | DPLANE_CTX_VALID(ctx); | |
736 | ||
737 | return ctx->zd_notif_provider; | |
738 | } | |
739 | ||
9651af61 MS |
740 | void dplane_ctx_set_notif_provider(struct zebra_dplane_ctx *ctx, |
741 | uint32_t id) | |
742 | { | |
743 | DPLANE_CTX_VALID(ctx); | |
744 | ||
745 | ctx->zd_notif_provider = id; | |
746 | } | |
747 | ||
593e4eb1 MS |
748 | void dplane_ctx_set_type(struct zebra_dplane_ctx *ctx, int type) |
749 | { | |
750 | DPLANE_CTX_VALID(ctx); | |
751 | ||
752 | ctx->u.rinfo.zd_type = type; | |
753 | } | |
754 | ||
25779064 | 755 | int dplane_ctx_get_type(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
756 | { |
757 | DPLANE_CTX_VALID(ctx); | |
758 | ||
0f461727 | 759 | return ctx->u.rinfo.zd_type; |
7cdb1a84 MS |
760 | } |
761 | ||
25779064 | 762 | int dplane_ctx_get_old_type(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
763 | { |
764 | DPLANE_CTX_VALID(ctx); | |
765 | ||
0f461727 | 766 | return ctx->u.rinfo.zd_old_type; |
7cdb1a84 MS |
767 | } |
768 | ||
593e4eb1 MS |
769 | void dplane_ctx_set_afi(struct zebra_dplane_ctx *ctx, afi_t afi) |
770 | { | |
771 | DPLANE_CTX_VALID(ctx); | |
772 | ||
773 | ctx->u.rinfo.zd_afi = afi; | |
774 | } | |
775 | ||
25779064 | 776 | afi_t dplane_ctx_get_afi(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
777 | { |
778 | DPLANE_CTX_VALID(ctx); | |
779 | ||
0f461727 | 780 | return ctx->u.rinfo.zd_afi; |
7cdb1a84 MS |
781 | } |
782 | ||
593e4eb1 MS |
783 | void dplane_ctx_set_safi(struct zebra_dplane_ctx *ctx, safi_t safi) |
784 | { | |
785 | DPLANE_CTX_VALID(ctx); | |
786 | ||
787 | ctx->u.rinfo.zd_safi = safi; | |
788 | } | |
789 | ||
25779064 | 790 | safi_t dplane_ctx_get_safi(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
791 | { |
792 | DPLANE_CTX_VALID(ctx); | |
793 | ||
0f461727 | 794 | return ctx->u.rinfo.zd_safi; |
7cdb1a84 MS |
795 | } |
796 | ||
593e4eb1 MS |
797 | void dplane_ctx_set_table(struct zebra_dplane_ctx *ctx, uint32_t table) |
798 | { | |
799 | DPLANE_CTX_VALID(ctx); | |
800 | ||
801 | ctx->zd_table_id = table; | |
802 | } | |
803 | ||
25779064 | 804 | uint32_t dplane_ctx_get_table(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
805 | { |
806 | DPLANE_CTX_VALID(ctx); | |
807 | ||
5709131c | 808 | return ctx->zd_table_id; |
7cdb1a84 MS |
809 | } |
810 | ||
25779064 | 811 | route_tag_t dplane_ctx_get_tag(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
812 | { |
813 | DPLANE_CTX_VALID(ctx); | |
814 | ||
0f461727 | 815 | return ctx->u.rinfo.zd_tag; |
7cdb1a84 MS |
816 | } |
817 | ||
6a91ae98 MS |
818 | void dplane_ctx_set_tag(struct zebra_dplane_ctx *ctx, route_tag_t tag) |
819 | { | |
820 | DPLANE_CTX_VALID(ctx); | |
821 | ||
822 | ctx->u.rinfo.zd_tag = tag; | |
823 | } | |
824 | ||
25779064 | 825 | route_tag_t dplane_ctx_get_old_tag(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
826 | { |
827 | DPLANE_CTX_VALID(ctx); | |
828 | ||
0f461727 | 829 | return ctx->u.rinfo.zd_old_tag; |
7cdb1a84 MS |
830 | } |
831 | ||
25779064 | 832 | uint16_t dplane_ctx_get_instance(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
833 | { |
834 | DPLANE_CTX_VALID(ctx); | |
835 | ||
0f461727 | 836 | return ctx->u.rinfo.zd_instance; |
7cdb1a84 MS |
837 | } |
838 | ||
6a91ae98 MS |
839 | void dplane_ctx_set_instance(struct zebra_dplane_ctx *ctx, uint16_t instance) |
840 | { | |
841 | DPLANE_CTX_VALID(ctx); | |
842 | ||
843 | ctx->u.rinfo.zd_instance = instance; | |
844 | } | |
845 | ||
25779064 | 846 | uint16_t dplane_ctx_get_old_instance(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
847 | { |
848 | DPLANE_CTX_VALID(ctx); | |
849 | ||
0f461727 | 850 | return ctx->u.rinfo.zd_old_instance; |
7cdb1a84 MS |
851 | } |
852 | ||
25779064 | 853 | uint32_t dplane_ctx_get_metric(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
854 | { |
855 | DPLANE_CTX_VALID(ctx); | |
856 | ||
0f461727 | 857 | return ctx->u.rinfo.zd_metric; |
7cdb1a84 MS |
858 | } |
859 | ||
25779064 | 860 | uint32_t dplane_ctx_get_old_metric(const struct zebra_dplane_ctx *ctx) |
01ce7cba MS |
861 | { |
862 | DPLANE_CTX_VALID(ctx); | |
863 | ||
0f461727 | 864 | return ctx->u.rinfo.zd_old_metric; |
01ce7cba MS |
865 | } |
866 | ||
25779064 | 867 | uint32_t dplane_ctx_get_mtu(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
868 | { |
869 | DPLANE_CTX_VALID(ctx); | |
870 | ||
0f461727 | 871 | return ctx->u.rinfo.zd_mtu; |
7cdb1a84 MS |
872 | } |
873 | ||
25779064 | 874 | uint32_t dplane_ctx_get_nh_mtu(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
875 | { |
876 | DPLANE_CTX_VALID(ctx); | |
877 | ||
0f461727 | 878 | return ctx->u.rinfo.zd_nexthop_mtu; |
7cdb1a84 MS |
879 | } |
880 | ||
25779064 | 881 | uint8_t dplane_ctx_get_distance(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
882 | { |
883 | DPLANE_CTX_VALID(ctx); | |
884 | ||
0f461727 | 885 | return ctx->u.rinfo.zd_distance; |
7cdb1a84 MS |
886 | } |
887 | ||
6a91ae98 MS |
888 | void dplane_ctx_set_distance(struct zebra_dplane_ctx *ctx, uint8_t distance) |
889 | { | |
890 | DPLANE_CTX_VALID(ctx); | |
891 | ||
892 | ctx->u.rinfo.zd_distance = distance; | |
893 | } | |
894 | ||
25779064 | 895 | uint8_t dplane_ctx_get_old_distance(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
896 | { |
897 | DPLANE_CTX_VALID(ctx); | |
898 | ||
0f461727 | 899 | return ctx->u.rinfo.zd_old_distance; |
7cdb1a84 MS |
900 | } |
901 | ||
593e4eb1 MS |
902 | void dplane_ctx_set_nexthops(struct zebra_dplane_ctx *ctx, struct nexthop *nh) |
903 | { | |
904 | DPLANE_CTX_VALID(ctx); | |
905 | ||
906 | if (ctx->u.rinfo.zd_ng.nexthop) { | |
907 | nexthops_free(ctx->u.rinfo.zd_ng.nexthop); | |
908 | ctx->u.rinfo.zd_ng.nexthop = NULL; | |
909 | } | |
910 | copy_nexthops(&(ctx->u.rinfo.zd_ng.nexthop), nh, NULL); | |
911 | } | |
912 | ||
25779064 MS |
913 | const struct nexthop_group *dplane_ctx_get_ng( |
914 | const struct zebra_dplane_ctx *ctx) | |
7cdb1a84 MS |
915 | { |
916 | DPLANE_CTX_VALID(ctx); | |
917 | ||
0f461727 | 918 | return &(ctx->u.rinfo.zd_ng); |
7cdb1a84 MS |
919 | } |
920 | ||
25779064 MS |
921 | const struct nexthop_group *dplane_ctx_get_old_ng( |
922 | const struct zebra_dplane_ctx *ctx) | |
01ce7cba MS |
923 | { |
924 | DPLANE_CTX_VALID(ctx); | |
925 | ||
0f461727 | 926 | return &(ctx->u.rinfo.zd_old_ng); |
01ce7cba MS |
927 | } |
928 | ||
25779064 MS |
929 | const struct zebra_dplane_info *dplane_ctx_get_ns( |
930 | const struct zebra_dplane_ctx *ctx) | |
7cdb1a84 MS |
931 | { |
932 | DPLANE_CTX_VALID(ctx); | |
933 | ||
5709131c | 934 | return &(ctx->zd_ns_info); |
7cdb1a84 MS |
935 | } |
936 | ||
0f461727 MS |
937 | /* Accessors for LSP information */ |
938 | ||
939 | mpls_label_t dplane_ctx_get_in_label(const struct zebra_dplane_ctx *ctx) | |
940 | { | |
941 | DPLANE_CTX_VALID(ctx); | |
942 | ||
943 | return ctx->u.lsp.ile.in_label; | |
944 | } | |
945 | ||
3ab54059 MS |
946 | void dplane_ctx_set_in_label(struct zebra_dplane_ctx *ctx, mpls_label_t label) |
947 | { | |
948 | DPLANE_CTX_VALID(ctx); | |
949 | ||
950 | ctx->u.lsp.ile.in_label = label; | |
951 | } | |
952 | ||
0f461727 MS |
953 | uint8_t dplane_ctx_get_addr_family(const struct zebra_dplane_ctx *ctx) |
954 | { | |
955 | DPLANE_CTX_VALID(ctx); | |
956 | ||
957 | return ctx->u.lsp.addr_family; | |
958 | } | |
959 | ||
3ab54059 MS |
960 | void dplane_ctx_set_addr_family(struct zebra_dplane_ctx *ctx, |
961 | uint8_t family) | |
962 | { | |
963 | DPLANE_CTX_VALID(ctx); | |
964 | ||
965 | ctx->u.lsp.addr_family = family; | |
966 | } | |
967 | ||
0f461727 MS |
968 | uint32_t dplane_ctx_get_lsp_flags(const struct zebra_dplane_ctx *ctx) |
969 | { | |
970 | DPLANE_CTX_VALID(ctx); | |
971 | ||
972 | return ctx->u.lsp.flags; | |
973 | } | |
974 | ||
3ab54059 MS |
975 | void dplane_ctx_set_lsp_flags(struct zebra_dplane_ctx *ctx, |
976 | uint32_t flags) | |
977 | { | |
978 | DPLANE_CTX_VALID(ctx); | |
979 | ||
980 | ctx->u.lsp.flags = flags; | |
981 | } | |
982 | ||
81793ac1 | 983 | const zebra_nhlfe_t *dplane_ctx_get_nhlfe(const struct zebra_dplane_ctx *ctx) |
0f461727 MS |
984 | { |
985 | DPLANE_CTX_VALID(ctx); | |
986 | ||
987 | return ctx->u.lsp.nhlfe_list; | |
988 | } | |
989 | ||
3ab54059 MS |
990 | zebra_nhlfe_t *dplane_ctx_add_nhlfe(struct zebra_dplane_ctx *ctx, |
991 | enum lsp_types_t lsp_type, | |
992 | enum nexthop_types_t nh_type, | |
993 | union g_addr *gate, | |
994 | ifindex_t ifindex, | |
995 | mpls_label_t out_label) | |
996 | { | |
997 | zebra_nhlfe_t *nhlfe; | |
998 | ||
999 | DPLANE_CTX_VALID(ctx); | |
1000 | ||
1001 | nhlfe = zebra_mpls_lsp_add_nhlfe(&(ctx->u.lsp), | |
1002 | lsp_type, nh_type, gate, | |
1003 | ifindex, out_label); | |
1004 | ||
1005 | return nhlfe; | |
1006 | } | |
1007 | ||
81793ac1 MS |
1008 | const zebra_nhlfe_t * |
1009 | dplane_ctx_get_best_nhlfe(const struct zebra_dplane_ctx *ctx) | |
0f461727 MS |
1010 | { |
1011 | DPLANE_CTX_VALID(ctx); | |
1012 | ||
1013 | return ctx->u.lsp.best_nhlfe; | |
1014 | } | |
1015 | ||
3ab54059 MS |
1016 | const zebra_nhlfe_t * |
1017 | dplane_ctx_set_best_nhlfe(struct zebra_dplane_ctx *ctx, | |
1018 | zebra_nhlfe_t *nhlfe) | |
1019 | { | |
1020 | DPLANE_CTX_VALID(ctx); | |
1021 | ||
1022 | ctx->u.lsp.best_nhlfe = nhlfe; | |
1023 | return ctx->u.lsp.best_nhlfe; | |
1024 | } | |
1025 | ||
0f461727 MS |
1026 | uint32_t dplane_ctx_get_lsp_num_ecmp(const struct zebra_dplane_ctx *ctx) |
1027 | { | |
1028 | DPLANE_CTX_VALID(ctx); | |
1029 | ||
1030 | return ctx->u.lsp.num_ecmp; | |
1031 | } | |
1032 | ||
d613b8e1 MS |
1033 | const char *dplane_ctx_get_pw_ifname(const struct zebra_dplane_ctx *ctx) |
1034 | { | |
1035 | DPLANE_CTX_VALID(ctx); | |
1036 | ||
1037 | return ctx->u.pw.ifname; | |
1038 | } | |
1039 | ||
1040 | mpls_label_t dplane_ctx_get_pw_local_label(const struct zebra_dplane_ctx *ctx) | |
1041 | { | |
1042 | DPLANE_CTX_VALID(ctx); | |
1043 | ||
1044 | return ctx->u.pw.local_label; | |
1045 | } | |
1046 | ||
1047 | mpls_label_t dplane_ctx_get_pw_remote_label(const struct zebra_dplane_ctx *ctx) | |
1048 | { | |
1049 | DPLANE_CTX_VALID(ctx); | |
1050 | ||
1051 | return ctx->u.pw.remote_label; | |
1052 | } | |
1053 | ||
1054 | int dplane_ctx_get_pw_type(const struct zebra_dplane_ctx *ctx) | |
1055 | { | |
1056 | DPLANE_CTX_VALID(ctx); | |
1057 | ||
1058 | return ctx->u.pw.type; | |
1059 | } | |
1060 | ||
1061 | int dplane_ctx_get_pw_af(const struct zebra_dplane_ctx *ctx) | |
1062 | { | |
1063 | DPLANE_CTX_VALID(ctx); | |
1064 | ||
1065 | return ctx->u.pw.af; | |
1066 | } | |
1067 | ||
1068 | uint32_t dplane_ctx_get_pw_flags(const struct zebra_dplane_ctx *ctx) | |
1069 | { | |
1070 | DPLANE_CTX_VALID(ctx); | |
1071 | ||
1072 | return ctx->u.pw.flags; | |
1073 | } | |
1074 | ||
1075 | int dplane_ctx_get_pw_status(const struct zebra_dplane_ctx *ctx) | |
1076 | { | |
1077 | DPLANE_CTX_VALID(ctx); | |
1078 | ||
1079 | return ctx->u.pw.status; | |
1080 | } | |
1081 | ||
16d69787 | 1082 | const union g_addr *dplane_ctx_get_pw_dest( |
d613b8e1 MS |
1083 | const struct zebra_dplane_ctx *ctx) |
1084 | { | |
1085 | DPLANE_CTX_VALID(ctx); | |
1086 | ||
16d69787 | 1087 | return &(ctx->u.pw.dest); |
d613b8e1 MS |
1088 | } |
1089 | ||
1090 | const union pw_protocol_fields *dplane_ctx_get_pw_proto( | |
1091 | const struct zebra_dplane_ctx *ctx) | |
1092 | { | |
1093 | DPLANE_CTX_VALID(ctx); | |
1094 | ||
1095 | return &(ctx->u.pw.fields); | |
1096 | } | |
1097 | ||
09cd307c MS |
1098 | const struct nexthop_group * |
1099 | dplane_ctx_get_pw_nhg(const struct zebra_dplane_ctx *ctx) | |
1100 | { | |
1101 | DPLANE_CTX_VALID(ctx); | |
1102 | ||
1103 | return &(ctx->u.pw.nhg); | |
1104 | } | |
1105 | ||
a4a4802a MS |
1106 | /* Accessors for interface information */ |
1107 | const char *dplane_ctx_get_ifname(const struct zebra_dplane_ctx *ctx) | |
1108 | { | |
1109 | DPLANE_CTX_VALID(ctx); | |
1110 | ||
1111 | return ctx->u.intf.ifname; | |
1112 | } | |
1113 | ||
1114 | ifindex_t dplane_ctx_get_ifindex(const struct zebra_dplane_ctx *ctx) | |
1115 | { | |
1116 | DPLANE_CTX_VALID(ctx); | |
1117 | ||
1118 | return ctx->u.intf.ifindex; | |
1119 | } | |
1120 | ||
1121 | uint32_t dplane_ctx_get_intf_metric(const struct zebra_dplane_ctx *ctx) | |
1122 | { | |
1123 | DPLANE_CTX_VALID(ctx); | |
1124 | ||
1125 | return ctx->u.intf.metric; | |
1126 | } | |
1127 | ||
1128 | /* Is interface addr p2p? */ | |
1129 | bool dplane_ctx_intf_is_connected(const struct zebra_dplane_ctx *ctx) | |
1130 | { | |
1131 | DPLANE_CTX_VALID(ctx); | |
1132 | ||
1133 | return (ctx->u.intf.flags & DPLANE_INTF_CONNECTED); | |
1134 | } | |
1135 | ||
1136 | bool dplane_ctx_intf_is_secondary(const struct zebra_dplane_ctx *ctx) | |
1137 | { | |
1138 | DPLANE_CTX_VALID(ctx); | |
1139 | ||
1140 | return (ctx->u.intf.flags & DPLANE_INTF_SECONDARY); | |
1141 | } | |
1142 | ||
64168803 MS |
1143 | bool dplane_ctx_intf_is_broadcast(const struct zebra_dplane_ctx *ctx) |
1144 | { | |
1145 | DPLANE_CTX_VALID(ctx); | |
1146 | ||
1147 | return (ctx->u.intf.flags & DPLANE_INTF_BROADCAST); | |
1148 | } | |
1149 | ||
a4a4802a MS |
1150 | const struct prefix *dplane_ctx_get_intf_addr( |
1151 | const struct zebra_dplane_ctx *ctx) | |
1152 | { | |
1153 | DPLANE_CTX_VALID(ctx); | |
1154 | ||
1155 | return &(ctx->u.intf.prefix); | |
1156 | } | |
1157 | ||
1158 | bool dplane_ctx_intf_has_dest(const struct zebra_dplane_ctx *ctx) | |
1159 | { | |
1160 | DPLANE_CTX_VALID(ctx); | |
1161 | ||
1162 | return (ctx->u.intf.flags & DPLANE_INTF_HAS_DEST); | |
1163 | } | |
1164 | ||
1165 | const struct prefix *dplane_ctx_get_intf_dest( | |
1166 | const struct zebra_dplane_ctx *ctx) | |
1167 | { | |
1168 | DPLANE_CTX_VALID(ctx); | |
1169 | ||
1170 | if (ctx->u.intf.flags & DPLANE_INTF_HAS_DEST) | |
1171 | return &(ctx->u.intf.dest_prefix); | |
1172 | else | |
1173 | return NULL; | |
1174 | } | |
1175 | ||
1176 | bool dplane_ctx_intf_has_label(const struct zebra_dplane_ctx *ctx) | |
1177 | { | |
1178 | DPLANE_CTX_VALID(ctx); | |
1179 | ||
1180 | return (ctx->u.intf.flags & DPLANE_INTF_HAS_LABEL); | |
1181 | } | |
1182 | ||
1183 | const char *dplane_ctx_get_intf_label(const struct zebra_dplane_ctx *ctx) | |
1184 | { | |
1185 | DPLANE_CTX_VALID(ctx); | |
1186 | ||
1187 | return ctx->u.intf.label; | |
1188 | } | |
1189 | ||
7cdb1a84 MS |
1190 | /* |
1191 | * End of dplane context accessors | |
1192 | */ | |
1193 | ||
c831033f | 1194 | |
91f16812 MS |
1195 | /* |
1196 | * Retrieve the limit on the number of pending, unprocessed updates. | |
1197 | */ | |
1198 | uint32_t dplane_get_in_queue_limit(void) | |
1199 | { | |
1200 | return atomic_load_explicit(&zdplane_info.dg_max_queued_updates, | |
1201 | memory_order_relaxed); | |
1202 | } | |
1203 | ||
1204 | /* | |
1205 | * Configure limit on the number of pending, queued updates. | |
1206 | */ | |
1207 | void dplane_set_in_queue_limit(uint32_t limit, bool set) | |
1208 | { | |
1209 | /* Reset to default on 'unset' */ | |
1210 | if (!set) | |
1211 | limit = DPLANE_DEFAULT_MAX_QUEUED; | |
1212 | ||
1213 | atomic_store_explicit(&zdplane_info.dg_max_queued_updates, limit, | |
1214 | memory_order_relaxed); | |
1215 | } | |
1216 | ||
1217 | /* | |
1218 | * Retrieve the current queue depth of incoming, unprocessed updates | |
1219 | */ | |
1220 | uint32_t dplane_get_in_queue_len(void) | |
1221 | { | |
1222 | return atomic_load_explicit(&zdplane_info.dg_routes_queued, | |
1223 | memory_order_seq_cst); | |
1224 | } | |
1225 | ||
16c628de MS |
1226 | /* |
1227 | * Common dataplane context init with zebra namespace info. | |
1228 | */ | |
1229 | static int dplane_ctx_ns_init(struct zebra_dplane_ctx *ctx, | |
1230 | struct zebra_ns *zns, | |
1231 | bool is_update) | |
1232 | { | |
1233 | dplane_info_from_zns(&(ctx->zd_ns_info), zns); | |
1234 | ||
1235 | #if defined(HAVE_NETLINK) | |
1236 | /* Increment message counter after copying to context struct - may need | |
1237 | * two messages in some 'update' cases. | |
1238 | */ | |
1239 | if (is_update) | |
1240 | zns->netlink_dplane.seq += 2; | |
1241 | else | |
1242 | zns->netlink_dplane.seq++; | |
1243 | #endif /* HAVE_NETLINK */ | |
1244 | ||
1245 | return AOK; | |
1246 | } | |
1247 | ||
7cdb1a84 MS |
1248 | /* |
1249 | * Initialize a context block for a route update from zebra data structs. | |
1250 | */ | |
25779064 | 1251 | static int dplane_ctx_route_init(struct zebra_dplane_ctx *ctx, |
5709131c | 1252 | enum dplane_op_e op, |
7cdb1a84 MS |
1253 | struct route_node *rn, |
1254 | struct route_entry *re) | |
1255 | { | |
1256 | int ret = EINVAL; | |
1257 | const struct route_table *table = NULL; | |
1258 | const rib_table_info_t *info; | |
1259 | const struct prefix *p, *src_p; | |
1260 | struct zebra_ns *zns; | |
1261 | struct zebra_vrf *zvrf; | |
f183e380 | 1262 | struct nexthop *nexthop; |
7cdb1a84 | 1263 | |
5709131c | 1264 | if (!ctx || !rn || !re) |
7cdb1a84 | 1265 | goto done; |
7cdb1a84 MS |
1266 | |
1267 | ctx->zd_op = op; | |
14b0bc8e | 1268 | ctx->zd_status = ZEBRA_DPLANE_REQUEST_SUCCESS; |
7cdb1a84 | 1269 | |
0f461727 MS |
1270 | ctx->u.rinfo.zd_type = re->type; |
1271 | ctx->u.rinfo.zd_old_type = re->type; | |
7cdb1a84 MS |
1272 | |
1273 | /* Prefixes: dest, and optional source */ | |
1274 | srcdest_rnode_prefixes(rn, &p, &src_p); | |
1275 | ||
0f461727 | 1276 | prefix_copy(&(ctx->u.rinfo.zd_dest), p); |
7cdb1a84 | 1277 | |
5709131c | 1278 | if (src_p) |
0f461727 | 1279 | prefix_copy(&(ctx->u.rinfo.zd_src), src_p); |
5709131c | 1280 | else |
0f461727 | 1281 | memset(&(ctx->u.rinfo.zd_src), 0, sizeof(ctx->u.rinfo.zd_src)); |
7cdb1a84 MS |
1282 | |
1283 | ctx->zd_table_id = re->table; | |
1284 | ||
0f461727 MS |
1285 | ctx->u.rinfo.zd_metric = re->metric; |
1286 | ctx->u.rinfo.zd_old_metric = re->metric; | |
7cdb1a84 | 1287 | ctx->zd_vrf_id = re->vrf_id; |
0f461727 MS |
1288 | ctx->u.rinfo.zd_mtu = re->mtu; |
1289 | ctx->u.rinfo.zd_nexthop_mtu = re->nexthop_mtu; | |
1290 | ctx->u.rinfo.zd_instance = re->instance; | |
1291 | ctx->u.rinfo.zd_tag = re->tag; | |
1292 | ctx->u.rinfo.zd_old_tag = re->tag; | |
1293 | ctx->u.rinfo.zd_distance = re->distance; | |
7cdb1a84 MS |
1294 | |
1295 | table = srcdest_rnode_table(rn); | |
1296 | info = table->info; | |
1297 | ||
0f461727 MS |
1298 | ctx->u.rinfo.zd_afi = info->afi; |
1299 | ctx->u.rinfo.zd_safi = info->safi; | |
7cdb1a84 | 1300 | |
7cdb1a84 | 1301 | /* Copy nexthops; recursive info is included too */ |
0f461727 | 1302 | copy_nexthops(&(ctx->u.rinfo.zd_ng.nexthop), re->ng.nexthop, NULL); |
7cdb1a84 | 1303 | |
14b0bc8e | 1304 | /* Ensure that the dplane's nexthops flags are clear. */ |
0f461727 | 1305 | for (ALL_NEXTHOPS(ctx->u.rinfo.zd_ng, nexthop)) |
f183e380 | 1306 | UNSET_FLAG(nexthop->flags, NEXTHOP_FLAG_FIB); |
f183e380 | 1307 | |
cf363e1b MS |
1308 | /* Don't need some info when capturing a system notification */ |
1309 | if (op == DPLANE_OP_SYS_ROUTE_ADD || | |
1310 | op == DPLANE_OP_SYS_ROUTE_DELETE) { | |
1311 | ret = AOK; | |
1312 | goto done; | |
1313 | } | |
1314 | ||
1315 | /* Extract ns info - can't use pointers to 'core' structs */ | |
1316 | zvrf = vrf_info_lookup(re->vrf_id); | |
1317 | zns = zvrf->zns; | |
1318 | dplane_ctx_ns_init(ctx, zns, (op == DPLANE_OP_ROUTE_UPDATE)); | |
1319 | ||
7cdb1a84 MS |
1320 | /* Trying out the sequence number idea, so we can try to detect |
1321 | * when a result is stale. | |
1322 | */ | |
1485bbe7 | 1323 | re->dplane_sequence = zebra_router_get_next_sequence(); |
7cdb1a84 MS |
1324 | ctx->zd_seq = re->dplane_sequence; |
1325 | ||
1326 | ret = AOK; | |
1327 | ||
1328 | done: | |
1329 | return ret; | |
1330 | } | |
1331 | ||
16c628de MS |
1332 | /* |
1333 | * Capture information for an LSP update in a dplane context. | |
1334 | */ | |
1335 | static int dplane_ctx_lsp_init(struct zebra_dplane_ctx *ctx, | |
1336 | enum dplane_op_e op, | |
1337 | zebra_lsp_t *lsp) | |
1338 | { | |
1339 | int ret = AOK; | |
1340 | zebra_nhlfe_t *nhlfe, *new_nhlfe; | |
1341 | ||
1342 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) | |
1343 | zlog_debug("init dplane ctx %s: in-label %u ecmp# %d", | |
1344 | dplane_op2str(op), lsp->ile.in_label, | |
1345 | lsp->num_ecmp); | |
1346 | ||
1347 | ctx->zd_op = op; | |
1348 | ctx->zd_status = ZEBRA_DPLANE_REQUEST_SUCCESS; | |
1349 | ||
1350 | /* Capture namespace info */ | |
1351 | dplane_ctx_ns_init(ctx, zebra_ns_lookup(NS_DEFAULT), | |
1352 | (op == DPLANE_OP_LSP_UPDATE)); | |
1353 | ||
1354 | memset(&ctx->u.lsp, 0, sizeof(ctx->u.lsp)); | |
1355 | ||
1356 | ctx->u.lsp.ile = lsp->ile; | |
1357 | ctx->u.lsp.addr_family = lsp->addr_family; | |
1358 | ctx->u.lsp.num_ecmp = lsp->num_ecmp; | |
1359 | ctx->u.lsp.flags = lsp->flags; | |
1360 | ||
1361 | /* Copy source LSP's nhlfes, and capture 'best' nhlfe */ | |
1362 | for (nhlfe = lsp->nhlfe_list; nhlfe; nhlfe = nhlfe->next) { | |
1363 | /* Not sure if this is meaningful... */ | |
1364 | if (nhlfe->nexthop == NULL) | |
1365 | continue; | |
1366 | ||
1367 | new_nhlfe = | |
1368 | zebra_mpls_lsp_add_nhlfe( | |
1369 | &(ctx->u.lsp), | |
1370 | nhlfe->type, | |
1371 | nhlfe->nexthop->type, | |
1372 | &(nhlfe->nexthop->gate), | |
1373 | nhlfe->nexthop->ifindex, | |
1374 | nhlfe->nexthop->nh_label->label[0]); | |
1375 | ||
1376 | if (new_nhlfe == NULL || new_nhlfe->nexthop == NULL) { | |
1377 | ret = ENOMEM; | |
1378 | break; | |
1379 | } | |
1380 | ||
1381 | /* Need to copy flags too */ | |
1382 | new_nhlfe->flags = nhlfe->flags; | |
1383 | new_nhlfe->nexthop->flags = nhlfe->nexthop->flags; | |
1384 | ||
1385 | if (nhlfe == lsp->best_nhlfe) | |
1386 | ctx->u.lsp.best_nhlfe = new_nhlfe; | |
1387 | } | |
1388 | ||
1389 | /* On error the ctx will be cleaned-up, so we don't need to | |
1390 | * deal with any allocated nhlfe or nexthop structs here. | |
1391 | */ | |
1392 | ||
1393 | return ret; | |
1394 | } | |
1395 | ||
97d8d05a MS |
1396 | /* |
1397 | * Capture information for an LSP update in a dplane context. | |
1398 | */ | |
1399 | static int dplane_ctx_pw_init(struct zebra_dplane_ctx *ctx, | |
1400 | enum dplane_op_e op, | |
1401 | struct zebra_pw *pw) | |
1402 | { | |
09cd307c MS |
1403 | struct prefix p; |
1404 | afi_t afi; | |
1405 | struct route_table *table; | |
1406 | struct route_node *rn; | |
1407 | struct route_entry *re; | |
1408 | ||
97d8d05a MS |
1409 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) |
1410 | zlog_debug("init dplane ctx %s: pw '%s', loc %u, rem %u", | |
1411 | dplane_op2str(op), pw->ifname, pw->local_label, | |
1412 | pw->remote_label); | |
1413 | ||
1414 | ctx->zd_op = op; | |
1415 | ctx->zd_status = ZEBRA_DPLANE_REQUEST_SUCCESS; | |
1416 | ||
1417 | /* Capture namespace info: no netlink support as of 12/18, | |
1418 | * but just in case... | |
1419 | */ | |
1420 | dplane_ctx_ns_init(ctx, zebra_ns_lookup(NS_DEFAULT), false); | |
1421 | ||
1422 | memset(&ctx->u.pw, 0, sizeof(ctx->u.pw)); | |
1423 | ||
1424 | /* This name appears to be c-string, so we use string copy. */ | |
1425 | strlcpy(ctx->u.pw.ifname, pw->ifname, sizeof(ctx->u.pw.ifname)); | |
16d69787 | 1426 | |
9bd9717b | 1427 | ctx->zd_vrf_id = pw->vrf_id; |
97d8d05a MS |
1428 | ctx->u.pw.ifindex = pw->ifindex; |
1429 | ctx->u.pw.type = pw->type; | |
1430 | ctx->u.pw.af = pw->af; | |
1431 | ctx->u.pw.local_label = pw->local_label; | |
1432 | ctx->u.pw.remote_label = pw->remote_label; | |
1433 | ctx->u.pw.flags = pw->flags; | |
1434 | ||
16d69787 | 1435 | ctx->u.pw.dest = pw->nexthop; |
97d8d05a MS |
1436 | |
1437 | ctx->u.pw.fields = pw->data; | |
1438 | ||
09cd307c MS |
1439 | /* Capture nexthop info for the pw destination. We need to look |
1440 | * up and use zebra datastructs, but we're running in the zebra | |
1441 | * pthread here so that should be ok. | |
1442 | */ | |
1443 | memcpy(&p.u, &pw->nexthop, sizeof(pw->nexthop)); | |
1444 | p.family = pw->af; | |
1445 | p.prefixlen = ((pw->af == AF_INET) ? | |
1446 | IPV4_MAX_PREFIXLEN : IPV6_MAX_PREFIXLEN); | |
1447 | ||
1448 | afi = (pw->af == AF_INET) ? AFI_IP : AFI_IP6; | |
1449 | table = zebra_vrf_table(afi, SAFI_UNICAST, pw->vrf_id); | |
1450 | if (table) { | |
1451 | rn = route_node_match(table, &p); | |
1452 | if (rn) { | |
1453 | RNODE_FOREACH_RE(rn, re) { | |
1454 | if (CHECK_FLAG(re->flags, ZEBRA_FLAG_SELECTED)) | |
1455 | break; | |
1456 | } | |
1457 | ||
1458 | if (re) | |
1459 | copy_nexthops(&(ctx->u.pw.nhg.nexthop), | |
1460 | re->ng.nexthop, NULL); | |
1461 | ||
1462 | route_unlock_node(rn); | |
1463 | } | |
1464 | } | |
1465 | ||
9f2d0354 | 1466 | return AOK; |
97d8d05a MS |
1467 | } |
1468 | ||
7cdb1a84 MS |
1469 | /* |
1470 | * Enqueue a new route update, | |
16c628de | 1471 | * and ensure an event is active for the dataplane pthread. |
7cdb1a84 | 1472 | */ |
25779064 | 1473 | static int dplane_route_enqueue(struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
1474 | { |
1475 | int ret = EINVAL; | |
91f16812 | 1476 | uint32_t high, curr; |
7cdb1a84 | 1477 | |
16c628de | 1478 | /* Enqueue for processing by the dataplane pthread */ |
7cdb1a84 MS |
1479 | DPLANE_LOCK(); |
1480 | { | |
25779064 MS |
1481 | TAILQ_INSERT_TAIL(&zdplane_info.dg_route_ctx_q, ctx, |
1482 | zd_q_entries); | |
7cdb1a84 MS |
1483 | } |
1484 | DPLANE_UNLOCK(); | |
1485 | ||
e07e9549 MS |
1486 | curr = atomic_add_fetch_explicit( |
1487 | #ifdef __clang__ | |
1488 | /* TODO -- issue with the clang atomic/intrinsics currently; | |
1489 | * casting away the 'Atomic'-ness of the variable works. | |
1490 | */ | |
1491 | (uint32_t *)&(zdplane_info.dg_routes_queued), | |
1492 | #else | |
1493 | &(zdplane_info.dg_routes_queued), | |
1494 | #endif | |
1495 | 1, memory_order_seq_cst); | |
91f16812 MS |
1496 | |
1497 | /* Maybe update high-water counter also */ | |
1498 | high = atomic_load_explicit(&zdplane_info.dg_routes_queued_max, | |
1499 | memory_order_seq_cst); | |
1500 | while (high < curr) { | |
1501 | if (atomic_compare_exchange_weak_explicit( | |
1502 | &zdplane_info.dg_routes_queued_max, | |
1503 | &high, curr, | |
1504 | memory_order_seq_cst, | |
1505 | memory_order_seq_cst)) | |
1506 | break; | |
1507 | } | |
1508 | ||
7cdb1a84 | 1509 | /* Ensure that an event for the dataplane thread is active */ |
c831033f | 1510 | ret = dplane_provider_work_ready(); |
7cdb1a84 | 1511 | |
5709131c | 1512 | return ret; |
7cdb1a84 MS |
1513 | } |
1514 | ||
7cdb1a84 MS |
1515 | /* |
1516 | * Utility that prepares a route update and enqueues it for processing | |
1517 | */ | |
655d681a MS |
1518 | static enum zebra_dplane_result |
1519 | dplane_route_update_internal(struct route_node *rn, | |
1520 | struct route_entry *re, | |
1521 | struct route_entry *old_re, | |
5709131c | 1522 | enum dplane_op_e op) |
7cdb1a84 | 1523 | { |
655d681a | 1524 | enum zebra_dplane_result result = ZEBRA_DPLANE_REQUEST_FAILURE; |
7cdb1a84 | 1525 | int ret = EINVAL; |
25779064 | 1526 | struct zebra_dplane_ctx *ctx = NULL; |
7cdb1a84 MS |
1527 | |
1528 | /* Obtain context block */ | |
1529 | ctx = dplane_ctx_alloc(); | |
7cdb1a84 MS |
1530 | |
1531 | /* Init context with info from zebra data structs */ | |
1532 | ret = dplane_ctx_route_init(ctx, op, rn, re); | |
1533 | if (ret == AOK) { | |
1534 | /* Capture some extra info for update case | |
1535 | * where there's a different 'old' route. | |
1536 | */ | |
b8e0423d MS |
1537 | if ((op == DPLANE_OP_ROUTE_UPDATE) && |
1538 | old_re && (old_re != re)) { | |
7cdb1a84 MS |
1539 | ctx->zd_is_update = true; |
1540 | ||
1485bbe7 DS |
1541 | old_re->dplane_sequence = |
1542 | zebra_router_get_next_sequence(); | |
7cdb1a84 MS |
1543 | ctx->zd_old_seq = old_re->dplane_sequence; |
1544 | ||
0f461727 MS |
1545 | ctx->u.rinfo.zd_old_tag = old_re->tag; |
1546 | ctx->u.rinfo.zd_old_type = old_re->type; | |
1547 | ctx->u.rinfo.zd_old_instance = old_re->instance; | |
1548 | ctx->u.rinfo.zd_old_distance = old_re->distance; | |
1549 | ctx->u.rinfo.zd_old_metric = old_re->metric; | |
01ce7cba MS |
1550 | |
1551 | #ifndef HAVE_NETLINK | |
f183e380 MS |
1552 | /* For bsd, capture previous re's nexthops too, sigh. |
1553 | * We'll need these to do per-nexthop deletes. | |
1554 | */ | |
0f461727 | 1555 | copy_nexthops(&(ctx->u.rinfo.zd_old_ng.nexthop), |
01ce7cba MS |
1556 | old_re->ng.nexthop, NULL); |
1557 | #endif /* !HAVE_NETLINK */ | |
7cdb1a84 MS |
1558 | } |
1559 | ||
1560 | /* Enqueue context for processing */ | |
1561 | ret = dplane_route_enqueue(ctx); | |
1562 | } | |
1563 | ||
91f16812 | 1564 | /* Update counter */ |
25779064 | 1565 | atomic_fetch_add_explicit(&zdplane_info.dg_routes_in, 1, |
1d11b21f MS |
1566 | memory_order_relaxed); |
1567 | ||
91f16812 | 1568 | if (ret == AOK) |
655d681a | 1569 | result = ZEBRA_DPLANE_REQUEST_QUEUED; |
16c628de | 1570 | else { |
25779064 | 1571 | atomic_fetch_add_explicit(&zdplane_info.dg_route_errors, 1, |
1d11b21f | 1572 | memory_order_relaxed); |
16c628de MS |
1573 | if (ctx) |
1574 | dplane_ctx_free(&ctx); | |
1d11b21f | 1575 | } |
7cdb1a84 | 1576 | |
5709131c | 1577 | return result; |
7cdb1a84 MS |
1578 | } |
1579 | ||
1580 | /* | |
1581 | * Enqueue a route 'add' for the dataplane. | |
1582 | */ | |
655d681a MS |
1583 | enum zebra_dplane_result dplane_route_add(struct route_node *rn, |
1584 | struct route_entry *re) | |
7cdb1a84 | 1585 | { |
655d681a | 1586 | enum zebra_dplane_result ret = ZEBRA_DPLANE_REQUEST_FAILURE; |
7cdb1a84 | 1587 | |
5709131c | 1588 | if (rn == NULL || re == NULL) |
7cdb1a84 | 1589 | goto done; |
7cdb1a84 MS |
1590 | |
1591 | ret = dplane_route_update_internal(rn, re, NULL, | |
1592 | DPLANE_OP_ROUTE_INSTALL); | |
1593 | ||
1594 | done: | |
5709131c | 1595 | return ret; |
7cdb1a84 MS |
1596 | } |
1597 | ||
1598 | /* | |
1599 | * Enqueue a route update for the dataplane. | |
1600 | */ | |
655d681a MS |
1601 | enum zebra_dplane_result dplane_route_update(struct route_node *rn, |
1602 | struct route_entry *re, | |
1603 | struct route_entry *old_re) | |
7cdb1a84 | 1604 | { |
655d681a | 1605 | enum zebra_dplane_result ret = ZEBRA_DPLANE_REQUEST_FAILURE; |
7cdb1a84 | 1606 | |
5709131c | 1607 | if (rn == NULL || re == NULL) |
7cdb1a84 | 1608 | goto done; |
7cdb1a84 MS |
1609 | |
1610 | ret = dplane_route_update_internal(rn, re, old_re, | |
1611 | DPLANE_OP_ROUTE_UPDATE); | |
7cdb1a84 | 1612 | done: |
5709131c | 1613 | return ret; |
7cdb1a84 MS |
1614 | } |
1615 | ||
1616 | /* | |
1617 | * Enqueue a route removal for the dataplane. | |
1618 | */ | |
655d681a MS |
1619 | enum zebra_dplane_result dplane_route_delete(struct route_node *rn, |
1620 | struct route_entry *re) | |
7cdb1a84 | 1621 | { |
655d681a | 1622 | enum zebra_dplane_result ret = ZEBRA_DPLANE_REQUEST_FAILURE; |
7cdb1a84 | 1623 | |
5709131c | 1624 | if (rn == NULL || re == NULL) |
7cdb1a84 | 1625 | goto done; |
7cdb1a84 MS |
1626 | |
1627 | ret = dplane_route_update_internal(rn, re, NULL, | |
1628 | DPLANE_OP_ROUTE_DELETE); | |
1629 | ||
1630 | done: | |
5709131c | 1631 | return ret; |
7cdb1a84 MS |
1632 | } |
1633 | ||
cf363e1b MS |
1634 | /* |
1635 | * Notify the dplane when system/connected routes change. | |
1636 | */ | |
1637 | enum zebra_dplane_result dplane_sys_route_add(struct route_node *rn, | |
1638 | struct route_entry *re) | |
1639 | { | |
1640 | enum zebra_dplane_result ret = ZEBRA_DPLANE_REQUEST_FAILURE; | |
1641 | ||
1642 | /* Ignore this event unless a provider plugin has requested it. */ | |
1643 | if (!zdplane_info.dg_sys_route_notifs) { | |
1644 | ret = ZEBRA_DPLANE_REQUEST_SUCCESS; | |
1645 | goto done; | |
1646 | } | |
1647 | ||
1648 | if (rn == NULL || re == NULL) | |
1649 | goto done; | |
1650 | ||
1651 | ret = dplane_route_update_internal(rn, re, NULL, | |
1652 | DPLANE_OP_SYS_ROUTE_ADD); | |
1653 | ||
1654 | done: | |
1655 | return ret; | |
1656 | } | |
1657 | ||
1658 | /* | |
1659 | * Notify the dplane when system/connected routes are deleted. | |
1660 | */ | |
1661 | enum zebra_dplane_result dplane_sys_route_del(struct route_node *rn, | |
1662 | struct route_entry *re) | |
1663 | { | |
1664 | enum zebra_dplane_result ret = ZEBRA_DPLANE_REQUEST_FAILURE; | |
1665 | ||
1666 | /* Ignore this event unless a provider plugin has requested it. */ | |
1667 | if (!zdplane_info.dg_sys_route_notifs) { | |
1668 | ret = ZEBRA_DPLANE_REQUEST_SUCCESS; | |
1669 | goto done; | |
1670 | } | |
1671 | ||
1672 | if (rn == NULL || re == NULL) | |
1673 | goto done; | |
1674 | ||
1675 | ret = dplane_route_update_internal(rn, re, NULL, | |
1676 | DPLANE_OP_SYS_ROUTE_DELETE); | |
1677 | ||
1678 | done: | |
1679 | return ret; | |
1680 | } | |
1681 | ||
188a00e0 MS |
1682 | /* |
1683 | * Update from an async notification, to bring other fibs up-to-date. | |
1684 | */ | |
1685 | enum zebra_dplane_result | |
1686 | dplane_route_notif_update(struct route_node *rn, | |
1687 | struct route_entry *re, | |
1688 | enum dplane_op_e op, | |
1689 | struct zebra_dplane_ctx *ctx) | |
1690 | { | |
1691 | enum zebra_dplane_result ret = ZEBRA_DPLANE_REQUEST_FAILURE; | |
1692 | struct zebra_dplane_ctx *new_ctx = NULL; | |
1693 | struct nexthop *nexthop; | |
1694 | ||
1695 | if (rn == NULL || re == NULL) | |
1696 | goto done; | |
1697 | ||
1698 | new_ctx = dplane_ctx_alloc(); | |
1699 | if (new_ctx == NULL) | |
1700 | goto done; | |
1701 | ||
1702 | /* Init context with info from zebra data structs */ | |
1703 | dplane_ctx_route_init(new_ctx, op, rn, re); | |
1704 | ||
1705 | /* For add/update, need to adjust the nexthops so that we match | |
1706 | * the notification state, which may not be the route-entry/RIB | |
1707 | * state. | |
1708 | */ | |
1709 | if (op == DPLANE_OP_ROUTE_UPDATE || | |
1710 | op == DPLANE_OP_ROUTE_INSTALL) { | |
1711 | ||
1712 | nexthops_free(new_ctx->u.rinfo.zd_ng.nexthop); | |
1713 | new_ctx->u.rinfo.zd_ng.nexthop = NULL; | |
1714 | ||
1715 | copy_nexthops(&(new_ctx->u.rinfo.zd_ng.nexthop), | |
1716 | (rib_active_nhg(re))->nexthop, NULL); | |
1717 | ||
1718 | for (ALL_NEXTHOPS(new_ctx->u.rinfo.zd_ng, nexthop)) | |
1719 | UNSET_FLAG(nexthop->flags, NEXTHOP_FLAG_FIB); | |
1720 | ||
1721 | } | |
1722 | ||
1723 | /* Capture info about the source of the notification, in 'ctx' */ | |
1724 | dplane_ctx_set_notif_provider(new_ctx, | |
1725 | dplane_ctx_get_notif_provider(ctx)); | |
1726 | ||
1727 | dplane_route_enqueue(new_ctx); | |
1728 | ||
1729 | ret = ZEBRA_DPLANE_REQUEST_QUEUED; | |
1730 | ||
1731 | done: | |
1732 | return ret; | |
1733 | } | |
1734 | ||
16c628de MS |
1735 | /* |
1736 | * Enqueue LSP add for the dataplane. | |
1737 | */ | |
1738 | enum zebra_dplane_result dplane_lsp_add(zebra_lsp_t *lsp) | |
1739 | { | |
1740 | enum zebra_dplane_result ret = | |
1741 | lsp_update_internal(lsp, DPLANE_OP_LSP_INSTALL); | |
1742 | ||
1743 | return ret; | |
1744 | } | |
1745 | ||
1746 | /* | |
1747 | * Enqueue LSP update for the dataplane. | |
1748 | */ | |
1749 | enum zebra_dplane_result dplane_lsp_update(zebra_lsp_t *lsp) | |
1750 | { | |
1751 | enum zebra_dplane_result ret = | |
1752 | lsp_update_internal(lsp, DPLANE_OP_LSP_UPDATE); | |
1753 | ||
1754 | return ret; | |
1755 | } | |
1756 | ||
1757 | /* | |
1758 | * Enqueue LSP delete for the dataplane. | |
1759 | */ | |
1760 | enum zebra_dplane_result dplane_lsp_delete(zebra_lsp_t *lsp) | |
1761 | { | |
1762 | enum zebra_dplane_result ret = | |
1763 | lsp_update_internal(lsp, DPLANE_OP_LSP_DELETE); | |
1764 | ||
1765 | return ret; | |
1766 | } | |
1767 | ||
188a00e0 MS |
1768 | /* Update or un-install resulting from an async notification */ |
1769 | enum zebra_dplane_result | |
1770 | dplane_lsp_notif_update(zebra_lsp_t *lsp, | |
1771 | enum dplane_op_e op, | |
1772 | struct zebra_dplane_ctx *notif_ctx) | |
1773 | { | |
1774 | enum zebra_dplane_result result = ZEBRA_DPLANE_REQUEST_FAILURE; | |
1775 | int ret = EINVAL; | |
1776 | struct zebra_dplane_ctx *ctx = NULL; | |
1777 | ||
1778 | /* Obtain context block */ | |
1779 | ctx = dplane_ctx_alloc(); | |
1780 | if (ctx == NULL) { | |
1781 | ret = ENOMEM; | |
1782 | goto done; | |
1783 | } | |
1784 | ||
1785 | ret = dplane_ctx_lsp_init(ctx, op, lsp); | |
1786 | if (ret != AOK) | |
1787 | goto done; | |
1788 | ||
1789 | /* Capture info about the source of the notification */ | |
1790 | dplane_ctx_set_notif_provider( | |
1791 | ctx, | |
1792 | dplane_ctx_get_notif_provider(notif_ctx)); | |
1793 | ||
1794 | ret = dplane_route_enqueue(ctx); | |
1795 | ||
1796 | done: | |
1797 | /* Update counter */ | |
1798 | atomic_fetch_add_explicit(&zdplane_info.dg_lsps_in, 1, | |
1799 | memory_order_relaxed); | |
1800 | ||
1801 | if (ret == AOK) | |
1802 | result = ZEBRA_DPLANE_REQUEST_QUEUED; | |
1803 | else { | |
1804 | atomic_fetch_add_explicit(&zdplane_info.dg_lsp_errors, 1, | |
1805 | memory_order_relaxed); | |
1806 | if (ctx) | |
1807 | dplane_ctx_free(&ctx); | |
1808 | } | |
1809 | return result; | |
1810 | } | |
1811 | ||
97d8d05a MS |
1812 | /* |
1813 | * Enqueue pseudowire install for the dataplane. | |
1814 | */ | |
1815 | enum zebra_dplane_result dplane_pw_install(struct zebra_pw *pw) | |
1816 | { | |
1817 | return pw_update_internal(pw, DPLANE_OP_PW_INSTALL); | |
1818 | } | |
1819 | ||
1820 | /* | |
1821 | * Enqueue pseudowire un-install for the dataplane. | |
1822 | */ | |
1823 | enum zebra_dplane_result dplane_pw_uninstall(struct zebra_pw *pw) | |
1824 | { | |
1825 | return pw_update_internal(pw, DPLANE_OP_PW_UNINSTALL); | |
1826 | } | |
1827 | ||
16c628de MS |
1828 | /* |
1829 | * Common internal LSP update utility | |
1830 | */ | |
1831 | static enum zebra_dplane_result lsp_update_internal(zebra_lsp_t *lsp, | |
1832 | enum dplane_op_e op) | |
1833 | { | |
1834 | enum zebra_dplane_result result = ZEBRA_DPLANE_REQUEST_FAILURE; | |
1835 | int ret = EINVAL; | |
1836 | struct zebra_dplane_ctx *ctx = NULL; | |
1837 | ||
1838 | /* Obtain context block */ | |
1839 | ctx = dplane_ctx_alloc(); | |
16c628de MS |
1840 | |
1841 | ret = dplane_ctx_lsp_init(ctx, op, lsp); | |
1842 | if (ret != AOK) | |
1843 | goto done; | |
1844 | ||
1845 | ret = dplane_route_enqueue(ctx); | |
1846 | ||
1847 | done: | |
1848 | /* Update counter */ | |
1849 | atomic_fetch_add_explicit(&zdplane_info.dg_lsps_in, 1, | |
1850 | memory_order_relaxed); | |
1851 | ||
1852 | if (ret == AOK) | |
1853 | result = ZEBRA_DPLANE_REQUEST_QUEUED; | |
1854 | else { | |
1855 | atomic_fetch_add_explicit(&zdplane_info.dg_lsp_errors, 1, | |
1856 | memory_order_relaxed); | |
d8e479a3 | 1857 | dplane_ctx_free(&ctx); |
16c628de MS |
1858 | } |
1859 | ||
1860 | return result; | |
1861 | } | |
1862 | ||
97d8d05a MS |
1863 | /* |
1864 | * Internal, common handler for pseudowire updates. | |
1865 | */ | |
1866 | static enum zebra_dplane_result pw_update_internal(struct zebra_pw *pw, | |
1867 | enum dplane_op_e op) | |
1868 | { | |
1869 | enum zebra_dplane_result result = ZEBRA_DPLANE_REQUEST_FAILURE; | |
1870 | int ret; | |
1871 | struct zebra_dplane_ctx *ctx = NULL; | |
1872 | ||
1873 | ctx = dplane_ctx_alloc(); | |
97d8d05a MS |
1874 | |
1875 | ret = dplane_ctx_pw_init(ctx, op, pw); | |
1876 | if (ret != AOK) | |
1877 | goto done; | |
1878 | ||
1879 | ret = dplane_route_enqueue(ctx); | |
1880 | ||
1881 | done: | |
1882 | /* Update counter */ | |
1883 | atomic_fetch_add_explicit(&zdplane_info.dg_pws_in, 1, | |
1884 | memory_order_relaxed); | |
1885 | ||
1886 | if (ret == AOK) | |
1887 | result = ZEBRA_DPLANE_REQUEST_QUEUED; | |
1888 | else { | |
1889 | atomic_fetch_add_explicit(&zdplane_info.dg_pw_errors, 1, | |
1890 | memory_order_relaxed); | |
d8e479a3 | 1891 | dplane_ctx_free(&ctx); |
97d8d05a MS |
1892 | } |
1893 | ||
1894 | return result; | |
1895 | } | |
1896 | ||
a4a4802a MS |
1897 | /* |
1898 | * Enqueue interface address add for the dataplane. | |
1899 | */ | |
1900 | enum zebra_dplane_result dplane_intf_addr_set(const struct interface *ifp, | |
1901 | const struct connected *ifc) | |
1902 | { | |
64168803 MS |
1903 | #if !defined(HAVE_NETLINK) && defined(HAVE_STRUCT_IFALIASREQ) |
1904 | /* Extra checks for this OS path. */ | |
1905 | ||
1906 | /* Don't configure PtP addresses on broadcast ifs or reverse */ | |
1907 | if (!(ifp->flags & IFF_POINTOPOINT) != !CONNECTED_PEER(ifc)) { | |
1908 | if (IS_ZEBRA_DEBUG_KERNEL || IS_ZEBRA_DEBUG_DPLANE) | |
1909 | zlog_debug("Failed to set intf addr: mismatch p2p and connected"); | |
1910 | ||
1911 | return ZEBRA_DPLANE_REQUEST_FAILURE; | |
1912 | } | |
1913 | ||
1914 | /* Ensure that no existing installed v4 route conflicts with | |
1915 | * the new interface prefix. This check must be done in the | |
1916 | * zebra pthread context, and any route delete (if needed) | |
1917 | * is enqueued before the interface address programming attempt. | |
1918 | */ | |
1919 | if (ifc->address->family == AF_INET) { | |
1920 | struct prefix_ipv4 *p; | |
1921 | ||
1922 | p = (struct prefix_ipv4 *)ifc->address; | |
a36898e7 | 1923 | rib_lookup_and_pushup(p, ifp->vrf_id); |
64168803 MS |
1924 | } |
1925 | #endif | |
1926 | ||
1927 | return intf_addr_update_internal(ifp, ifc, DPLANE_OP_ADDR_INSTALL); | |
a4a4802a MS |
1928 | } |
1929 | ||
1930 | /* | |
1931 | * Enqueue interface address remove/uninstall for the dataplane. | |
1932 | */ | |
1933 | enum zebra_dplane_result dplane_intf_addr_unset(const struct interface *ifp, | |
1934 | const struct connected *ifc) | |
1935 | { | |
64168803 MS |
1936 | return intf_addr_update_internal(ifp, ifc, DPLANE_OP_ADDR_UNINSTALL); |
1937 | } | |
1938 | ||
1939 | static enum zebra_dplane_result intf_addr_update_internal( | |
1940 | const struct interface *ifp, const struct connected *ifc, | |
1941 | enum dplane_op_e op) | |
1942 | { | |
1943 | enum zebra_dplane_result result = ZEBRA_DPLANE_REQUEST_FAILURE; | |
1944 | int ret = EINVAL; | |
1945 | struct zebra_dplane_ctx *ctx = NULL; | |
1946 | struct zebra_ns *zns; | |
1947 | ||
1948 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) { | |
1949 | char addr_str[PREFIX_STRLEN]; | |
1950 | ||
1951 | prefix2str(ifc->address, addr_str, sizeof(addr_str)); | |
1952 | ||
1953 | zlog_debug("init intf ctx %s: idx %d, addr %u:%s", | |
a36898e7 | 1954 | dplane_op2str(op), ifp->ifindex, ifp->vrf_id, |
64168803 MS |
1955 | addr_str); |
1956 | } | |
1957 | ||
1958 | ctx = dplane_ctx_alloc(); | |
64168803 MS |
1959 | |
1960 | ctx->zd_op = op; | |
1961 | ctx->zd_status = ZEBRA_DPLANE_REQUEST_SUCCESS; | |
a36898e7 | 1962 | ctx->zd_vrf_id = ifp->vrf_id; |
64168803 | 1963 | |
a36898e7 | 1964 | zns = zebra_ns_lookup(ifp->vrf_id); |
64168803 MS |
1965 | dplane_ctx_ns_init(ctx, zns, false); |
1966 | ||
1967 | /* Init the interface-addr-specific area */ | |
1968 | memset(&ctx->u.intf, 0, sizeof(ctx->u.intf)); | |
1969 | ||
b7b7bf31 | 1970 | strlcpy(ctx->u.intf.ifname, ifp->name, sizeof(ctx->u.intf.ifname)); |
64168803 MS |
1971 | ctx->u.intf.ifindex = ifp->ifindex; |
1972 | ctx->u.intf.prefix = *(ifc->address); | |
1973 | ||
1974 | if (if_is_broadcast(ifp)) | |
1975 | ctx->u.intf.flags |= DPLANE_INTF_BROADCAST; | |
1976 | ||
1977 | if (CONNECTED_PEER(ifc)) { | |
1978 | ctx->u.intf.dest_prefix = *(ifc->destination); | |
1979 | ctx->u.intf.flags |= | |
1980 | (DPLANE_INTF_CONNECTED | DPLANE_INTF_HAS_DEST); | |
1981 | } else if (ifc->destination) { | |
1982 | ctx->u.intf.dest_prefix = *(ifc->destination); | |
1983 | ctx->u.intf.flags |= DPLANE_INTF_HAS_DEST; | |
1984 | } | |
1985 | ||
1986 | if (CHECK_FLAG(ifc->flags, ZEBRA_IFA_SECONDARY)) | |
1987 | ctx->u.intf.flags |= DPLANE_INTF_SECONDARY; | |
1988 | ||
1989 | if (ifc->label) { | |
1990 | size_t len; | |
1991 | ||
1992 | ctx->u.intf.flags |= DPLANE_INTF_HAS_LABEL; | |
1993 | ||
1994 | /* Use embedded buffer if it's adequate; else allocate. */ | |
1995 | len = strlen(ifc->label); | |
1996 | ||
1997 | if (len < sizeof(ctx->u.intf.label_buf)) { | |
b7b7bf31 | 1998 | strlcpy(ctx->u.intf.label_buf, ifc->label, |
64168803 MS |
1999 | sizeof(ctx->u.intf.label_buf)); |
2000 | ctx->u.intf.label = ctx->u.intf.label_buf; | |
2001 | } else { | |
2002 | ctx->u.intf.label = strdup(ifc->label); | |
2003 | } | |
2004 | } | |
2005 | ||
2006 | ret = dplane_route_enqueue(ctx); | |
2007 | ||
64168803 MS |
2008 | /* Increment counter */ |
2009 | atomic_fetch_add_explicit(&zdplane_info.dg_intf_addrs_in, 1, | |
2010 | memory_order_relaxed); | |
2011 | ||
2012 | if (ret == AOK) | |
2013 | result = ZEBRA_DPLANE_REQUEST_QUEUED; | |
2014 | else { | |
2015 | /* Error counter */ | |
2016 | atomic_fetch_add_explicit(&zdplane_info.dg_intf_addr_errors, | |
2017 | 1, memory_order_relaxed); | |
d8e479a3 | 2018 | dplane_ctx_free(&ctx); |
64168803 MS |
2019 | } |
2020 | ||
2021 | return result; | |
a4a4802a MS |
2022 | } |
2023 | ||
1d11b21f MS |
2024 | /* |
2025 | * Handler for 'show dplane' | |
2026 | */ | |
2027 | int dplane_show_helper(struct vty *vty, bool detailed) | |
2028 | { | |
16c628de MS |
2029 | uint64_t queued, queue_max, limit, errs, incoming, yields, |
2030 | other_errs; | |
1d11b21f | 2031 | |
4dfd7a02 | 2032 | /* Using atomics because counters are being changed in different |
c831033f | 2033 | * pthread contexts. |
4dfd7a02 | 2034 | */ |
25779064 | 2035 | incoming = atomic_load_explicit(&zdplane_info.dg_routes_in, |
1d11b21f | 2036 | memory_order_relaxed); |
91f16812 MS |
2037 | limit = atomic_load_explicit(&zdplane_info.dg_max_queued_updates, |
2038 | memory_order_relaxed); | |
25779064 | 2039 | queued = atomic_load_explicit(&zdplane_info.dg_routes_queued, |
1d11b21f | 2040 | memory_order_relaxed); |
25779064 | 2041 | queue_max = atomic_load_explicit(&zdplane_info.dg_routes_queued_max, |
4dfd7a02 | 2042 | memory_order_relaxed); |
25779064 | 2043 | errs = atomic_load_explicit(&zdplane_info.dg_route_errors, |
1d11b21f | 2044 | memory_order_relaxed); |
c831033f MS |
2045 | yields = atomic_load_explicit(&zdplane_info.dg_update_yields, |
2046 | memory_order_relaxed); | |
16c628de MS |
2047 | other_errs = atomic_load_explicit(&zdplane_info.dg_other_errors, |
2048 | memory_order_relaxed); | |
1d11b21f | 2049 | |
c831033f MS |
2050 | vty_out(vty, "Zebra dataplane:\nRoute updates: %"PRIu64"\n", |
2051 | incoming); | |
1d11b21f | 2052 | vty_out(vty, "Route update errors: %"PRIu64"\n", errs); |
16c628de | 2053 | vty_out(vty, "Other errors : %"PRIu64"\n", other_errs); |
91f16812 | 2054 | vty_out(vty, "Route update queue limit: %"PRIu64"\n", limit); |
1d11b21f | 2055 | vty_out(vty, "Route update queue depth: %"PRIu64"\n", queued); |
4dfd7a02 | 2056 | vty_out(vty, "Route update queue max: %"PRIu64"\n", queue_max); |
16c628de | 2057 | vty_out(vty, "Dplane update yields: %"PRIu64"\n", yields); |
1d11b21f MS |
2058 | |
2059 | return CMD_SUCCESS; | |
2060 | } | |
2061 | ||
2062 | /* | |
2063 | * Handler for 'show dplane providers' | |
2064 | */ | |
2065 | int dplane_show_provs_helper(struct vty *vty, bool detailed) | |
2066 | { | |
c831033f MS |
2067 | struct zebra_dplane_provider *prov; |
2068 | uint64_t in, in_max, out, out_max; | |
2069 | ||
2070 | vty_out(vty, "Zebra dataplane providers:\n"); | |
2071 | ||
2072 | DPLANE_LOCK(); | |
2073 | prov = TAILQ_FIRST(&zdplane_info.dg_providers_q); | |
2074 | DPLANE_UNLOCK(); | |
2075 | ||
2076 | /* Show counters, useful info from each registered provider */ | |
2077 | while (prov) { | |
2078 | ||
2079 | in = atomic_load_explicit(&prov->dp_in_counter, | |
2080 | memory_order_relaxed); | |
2081 | in_max = atomic_load_explicit(&prov->dp_in_max, | |
2082 | memory_order_relaxed); | |
2083 | out = atomic_load_explicit(&prov->dp_out_counter, | |
2084 | memory_order_relaxed); | |
2085 | out_max = atomic_load_explicit(&prov->dp_out_max, | |
2086 | memory_order_relaxed); | |
2087 | ||
c9d17fe8 MS |
2088 | vty_out(vty, "%s (%u): in: %"PRIu64", q_max: %"PRIu64", " |
2089 | "out: %"PRIu64", q_max: %"PRIu64"\n", | |
c831033f MS |
2090 | prov->dp_name, prov->dp_id, in, in_max, out, out_max); |
2091 | ||
2092 | DPLANE_LOCK(); | |
2093 | prov = TAILQ_NEXT(prov, dp_prov_link); | |
2094 | DPLANE_UNLOCK(); | |
2095 | } | |
1d11b21f MS |
2096 | |
2097 | return CMD_SUCCESS; | |
2098 | } | |
2099 | ||
b8e0423d MS |
2100 | /* |
2101 | * Provider registration | |
2102 | */ | |
2103 | int dplane_provider_register(const char *name, | |
c831033f MS |
2104 | enum dplane_provider_prio prio, |
2105 | int flags, | |
1dd4ea8a | 2106 | int (*start_fp)(struct zebra_dplane_provider *), |
4c206c8f MS |
2107 | int (*fp)(struct zebra_dplane_provider *), |
2108 | int (*fini_fp)(struct zebra_dplane_provider *, | |
2109 | bool early), | |
1ff8a248 MS |
2110 | void *data, |
2111 | struct zebra_dplane_provider **prov_p) | |
b8e0423d MS |
2112 | { |
2113 | int ret = 0; | |
6fb51ccb | 2114 | struct zebra_dplane_provider *p = NULL, *last; |
b8e0423d MS |
2115 | |
2116 | /* Validate */ | |
2117 | if (fp == NULL) { | |
2118 | ret = EINVAL; | |
2119 | goto done; | |
2120 | } | |
2121 | ||
2122 | if (prio <= DPLANE_PRIO_NONE || | |
1bcea841 | 2123 | prio > DPLANE_PRIO_LAST) { |
b8e0423d MS |
2124 | ret = EINVAL; |
2125 | goto done; | |
2126 | } | |
2127 | ||
2128 | /* Allocate and init new provider struct */ | |
25779064 | 2129 | p = XCALLOC(MTYPE_DP_PROV, sizeof(struct zebra_dplane_provider)); |
b8e0423d | 2130 | |
c831033f MS |
2131 | pthread_mutex_init(&(p->dp_mutex), NULL); |
2132 | TAILQ_INIT(&(p->dp_ctx_in_q)); | |
2133 | TAILQ_INIT(&(p->dp_ctx_out_q)); | |
b8e0423d MS |
2134 | |
2135 | p->dp_priority = prio; | |
2136 | p->dp_fp = fp; | |
1dd4ea8a | 2137 | p->dp_start = start_fp; |
18c37974 | 2138 | p->dp_fini = fini_fp; |
c831033f | 2139 | p->dp_data = data; |
18c37974 | 2140 | |
c831033f | 2141 | /* Lock - the dplane pthread may be running */ |
18c37974 | 2142 | DPLANE_LOCK(); |
b8e0423d | 2143 | |
25779064 | 2144 | p->dp_id = ++zdplane_info.dg_provider_id; |
b8e0423d | 2145 | |
c831033f MS |
2146 | if (name) |
2147 | strlcpy(p->dp_name, name, DPLANE_PROVIDER_NAMELEN); | |
2148 | else | |
2149 | snprintf(p->dp_name, DPLANE_PROVIDER_NAMELEN, | |
2150 | "provider-%u", p->dp_id); | |
2151 | ||
b8e0423d | 2152 | /* Insert into list ordered by priority */ |
c831033f | 2153 | TAILQ_FOREACH(last, &zdplane_info.dg_providers_q, dp_prov_link) { |
5709131c | 2154 | if (last->dp_priority > p->dp_priority) |
b8e0423d | 2155 | break; |
b8e0423d MS |
2156 | } |
2157 | ||
5709131c | 2158 | if (last) |
c831033f | 2159 | TAILQ_INSERT_BEFORE(last, p, dp_prov_link); |
5709131c | 2160 | else |
25779064 | 2161 | TAILQ_INSERT_TAIL(&zdplane_info.dg_providers_q, p, |
c831033f | 2162 | dp_prov_link); |
b8e0423d | 2163 | |
18c37974 MS |
2164 | /* And unlock */ |
2165 | DPLANE_UNLOCK(); | |
2166 | ||
c831033f MS |
2167 | if (IS_ZEBRA_DEBUG_DPLANE) |
2168 | zlog_debug("dplane: registered new provider '%s' (%u), prio %d", | |
2169 | p->dp_name, p->dp_id, p->dp_priority); | |
2170 | ||
b8e0423d | 2171 | done: |
1ff8a248 MS |
2172 | if (prov_p) |
2173 | *prov_p = p; | |
2174 | ||
5709131c | 2175 | return ret; |
b8e0423d MS |
2176 | } |
2177 | ||
c831033f MS |
2178 | /* Accessors for provider attributes */ |
2179 | const char *dplane_provider_get_name(const struct zebra_dplane_provider *prov) | |
2180 | { | |
2181 | return prov->dp_name; | |
2182 | } | |
2183 | ||
2184 | uint32_t dplane_provider_get_id(const struct zebra_dplane_provider *prov) | |
2185 | { | |
2186 | return prov->dp_id; | |
2187 | } | |
2188 | ||
2189 | void *dplane_provider_get_data(const struct zebra_dplane_provider *prov) | |
2190 | { | |
2191 | return prov->dp_data; | |
2192 | } | |
2193 | ||
2194 | int dplane_provider_get_work_limit(const struct zebra_dplane_provider *prov) | |
2195 | { | |
2196 | return zdplane_info.dg_updates_per_cycle; | |
2197 | } | |
2198 | ||
ad6aad4d MS |
2199 | /* Lock/unlock a provider's mutex - iff the provider was registered with |
2200 | * the THREADED flag. | |
2201 | */ | |
2202 | void dplane_provider_lock(struct zebra_dplane_provider *prov) | |
2203 | { | |
2204 | if (dplane_provider_is_threaded(prov)) | |
2205 | DPLANE_PROV_LOCK(prov); | |
2206 | } | |
2207 | ||
2208 | void dplane_provider_unlock(struct zebra_dplane_provider *prov) | |
2209 | { | |
2210 | if (dplane_provider_is_threaded(prov)) | |
2211 | DPLANE_PROV_UNLOCK(prov); | |
2212 | } | |
2213 | ||
c831033f MS |
2214 | /* |
2215 | * Dequeue and maintain associated counter | |
2216 | */ | |
2217 | struct zebra_dplane_ctx *dplane_provider_dequeue_in_ctx( | |
2218 | struct zebra_dplane_provider *prov) | |
2219 | { | |
2220 | struct zebra_dplane_ctx *ctx = NULL; | |
2221 | ||
ad6aad4d | 2222 | dplane_provider_lock(prov); |
c831033f MS |
2223 | |
2224 | ctx = TAILQ_FIRST(&(prov->dp_ctx_in_q)); | |
2225 | if (ctx) { | |
2226 | TAILQ_REMOVE(&(prov->dp_ctx_in_q), ctx, zd_q_entries); | |
c9d17fe8 MS |
2227 | |
2228 | atomic_fetch_sub_explicit(&prov->dp_in_queued, 1, | |
2229 | memory_order_relaxed); | |
c831033f MS |
2230 | } |
2231 | ||
ad6aad4d | 2232 | dplane_provider_unlock(prov); |
c831033f MS |
2233 | |
2234 | return ctx; | |
2235 | } | |
2236 | ||
2237 | /* | |
2238 | * Dequeue work to a list, return count | |
2239 | */ | |
2240 | int dplane_provider_dequeue_in_list(struct zebra_dplane_provider *prov, | |
2241 | struct dplane_ctx_q *listp) | |
2242 | { | |
2243 | int limit, ret; | |
2244 | struct zebra_dplane_ctx *ctx; | |
2245 | ||
2246 | limit = zdplane_info.dg_updates_per_cycle; | |
2247 | ||
ad6aad4d | 2248 | dplane_provider_lock(prov); |
c831033f MS |
2249 | |
2250 | for (ret = 0; ret < limit; ret++) { | |
2251 | ctx = TAILQ_FIRST(&(prov->dp_ctx_in_q)); | |
2252 | if (ctx) { | |
2253 | TAILQ_REMOVE(&(prov->dp_ctx_in_q), ctx, zd_q_entries); | |
2254 | ||
2255 | TAILQ_INSERT_TAIL(listp, ctx, zd_q_entries); | |
2256 | } else { | |
2257 | break; | |
2258 | } | |
2259 | } | |
2260 | ||
c9d17fe8 MS |
2261 | if (ret > 0) |
2262 | atomic_fetch_sub_explicit(&prov->dp_in_queued, ret, | |
2263 | memory_order_relaxed); | |
2264 | ||
ad6aad4d | 2265 | dplane_provider_unlock(prov); |
c831033f MS |
2266 | |
2267 | return ret; | |
2268 | } | |
2269 | ||
2270 | /* | |
2271 | * Enqueue and maintain associated counter | |
2272 | */ | |
2273 | void dplane_provider_enqueue_out_ctx(struct zebra_dplane_provider *prov, | |
2274 | struct zebra_dplane_ctx *ctx) | |
2275 | { | |
ad6aad4d | 2276 | dplane_provider_lock(prov); |
c831033f MS |
2277 | |
2278 | TAILQ_INSERT_TAIL(&(prov->dp_ctx_out_q), ctx, | |
2279 | zd_q_entries); | |
2280 | ||
ad6aad4d | 2281 | dplane_provider_unlock(prov); |
c831033f MS |
2282 | |
2283 | atomic_fetch_add_explicit(&(prov->dp_out_counter), 1, | |
2284 | memory_order_relaxed); | |
2285 | } | |
2286 | ||
62b8bb7a MS |
2287 | /* |
2288 | * Accessor for provider object | |
2289 | */ | |
c831033f MS |
2290 | bool dplane_provider_is_threaded(const struct zebra_dplane_provider *prov) |
2291 | { | |
2292 | return (prov->dp_flags & DPLANE_PROV_FLAG_THREADED); | |
2293 | } | |
2294 | ||
62b8bb7a MS |
2295 | /* |
2296 | * Internal helper that copies information from a zebra ns object; this is | |
2297 | * called in the zebra main pthread context as part of dplane ctx init. | |
2298 | */ | |
2299 | static void dplane_info_from_zns(struct zebra_dplane_info *ns_info, | |
2300 | struct zebra_ns *zns) | |
2301 | { | |
2302 | ns_info->ns_id = zns->ns_id; | |
2303 | ||
2304 | #if defined(HAVE_NETLINK) | |
2305 | ns_info->is_cmd = true; | |
2306 | ns_info->nls = zns->netlink_dplane; | |
2307 | #endif /* NETLINK */ | |
2308 | } | |
2309 | ||
c831033f MS |
2310 | /* |
2311 | * Provider api to signal that work/events are available | |
2312 | * for the dataplane pthread. | |
2313 | */ | |
2314 | int dplane_provider_work_ready(void) | |
2315 | { | |
e5a60d82 MS |
2316 | /* Note that during zebra startup, we may be offered work before |
2317 | * the dataplane pthread (and thread-master) are ready. We want to | |
2318 | * enqueue the work, but the event-scheduling machinery may not be | |
2319 | * available. | |
2320 | */ | |
2321 | if (zdplane_info.dg_run) { | |
2322 | thread_add_event(zdplane_info.dg_master, | |
2323 | dplane_thread_loop, NULL, 0, | |
2324 | &zdplane_info.dg_t_update); | |
2325 | } | |
c831033f MS |
2326 | |
2327 | return AOK; | |
2328 | } | |
2329 | ||
593e4eb1 MS |
2330 | /* |
2331 | * Enqueue a context directly to zebra main. | |
2332 | */ | |
2333 | void dplane_provider_enqueue_to_zebra(struct zebra_dplane_ctx *ctx) | |
2334 | { | |
2335 | struct dplane_ctx_q temp_list; | |
2336 | ||
2337 | /* Zebra's api takes a list, so we need to use a temporary list */ | |
2338 | TAILQ_INIT(&temp_list); | |
2339 | ||
2340 | TAILQ_INSERT_TAIL(&temp_list, ctx, zd_q_entries); | |
2341 | (zdplane_info.dg_results_cb)(&temp_list); | |
2342 | } | |
2343 | ||
7cdb1a84 | 2344 | /* |
c831033f | 2345 | * Kernel dataplane provider |
7cdb1a84 | 2346 | */ |
c831033f | 2347 | |
16c628de MS |
2348 | /* |
2349 | * Handler for kernel LSP updates | |
2350 | */ | |
2351 | static enum zebra_dplane_result | |
2352 | kernel_dplane_lsp_update(struct zebra_dplane_ctx *ctx) | |
2353 | { | |
2354 | enum zebra_dplane_result res; | |
2355 | ||
2356 | /* Call into the synchronous kernel-facing code here */ | |
2357 | res = kernel_lsp_update(ctx); | |
2358 | ||
2359 | if (res != ZEBRA_DPLANE_REQUEST_SUCCESS) | |
2360 | atomic_fetch_add_explicit( | |
2361 | &zdplane_info.dg_lsp_errors, 1, | |
2362 | memory_order_relaxed); | |
2363 | ||
2364 | return res; | |
2365 | } | |
2366 | ||
c10a646d MS |
2367 | /* |
2368 | * Handler for kernel pseudowire updates | |
2369 | */ | |
2370 | static enum zebra_dplane_result | |
2371 | kernel_dplane_pw_update(struct zebra_dplane_ctx *ctx) | |
2372 | { | |
2373 | enum zebra_dplane_result res; | |
2374 | ||
2375 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) | |
2376 | zlog_debug("Dplane pw %s: op %s af %d loc: %u rem: %u", | |
2377 | dplane_ctx_get_pw_ifname(ctx), | |
2378 | dplane_op2str(ctx->zd_op), | |
2379 | dplane_ctx_get_pw_af(ctx), | |
2380 | dplane_ctx_get_pw_local_label(ctx), | |
2381 | dplane_ctx_get_pw_remote_label(ctx)); | |
2382 | ||
2383 | res = kernel_pw_update(ctx); | |
2384 | ||
2385 | if (res != ZEBRA_DPLANE_REQUEST_SUCCESS) | |
2386 | atomic_fetch_add_explicit( | |
2387 | &zdplane_info.dg_pw_errors, 1, | |
2388 | memory_order_relaxed); | |
2389 | ||
2390 | return res; | |
2391 | } | |
2392 | ||
16c628de MS |
2393 | /* |
2394 | * Handler for kernel route updates | |
2395 | */ | |
2396 | static enum zebra_dplane_result | |
2397 | kernel_dplane_route_update(struct zebra_dplane_ctx *ctx) | |
2398 | { | |
2399 | enum zebra_dplane_result res; | |
2400 | ||
2401 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) { | |
2402 | char dest_str[PREFIX_STRLEN]; | |
2403 | ||
2404 | prefix2str(dplane_ctx_get_dest(ctx), | |
2405 | dest_str, sizeof(dest_str)); | |
2406 | ||
2407 | zlog_debug("%u:%s Dplane route update ctx %p op %s", | |
2408 | dplane_ctx_get_vrf(ctx), dest_str, | |
2409 | ctx, dplane_op2str(dplane_ctx_get_op(ctx))); | |
2410 | } | |
2411 | ||
2412 | /* Call into the synchronous kernel-facing code here */ | |
2413 | res = kernel_route_update(ctx); | |
2414 | ||
2415 | if (res != ZEBRA_DPLANE_REQUEST_SUCCESS) | |
2416 | atomic_fetch_add_explicit( | |
2417 | &zdplane_info.dg_route_errors, 1, | |
2418 | memory_order_relaxed); | |
2419 | ||
2420 | return res; | |
2421 | } | |
2422 | ||
64168803 MS |
2423 | /* |
2424 | * Handler for kernel-facing interface address updates | |
2425 | */ | |
2426 | static enum zebra_dplane_result | |
2427 | kernel_dplane_address_update(struct zebra_dplane_ctx *ctx) | |
2428 | { | |
2429 | enum zebra_dplane_result res; | |
2430 | ||
2431 | ||
2432 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) { | |
2433 | char dest_str[PREFIX_STRLEN]; | |
2434 | ||
2435 | prefix2str(dplane_ctx_get_intf_addr(ctx), dest_str, | |
2436 | sizeof(dest_str)); | |
2437 | ||
2438 | zlog_debug("Dplane intf %s, idx %u, addr %s", | |
2439 | dplane_op2str(dplane_ctx_get_op(ctx)), | |
2440 | dplane_ctx_get_ifindex(ctx), dest_str); | |
2441 | } | |
2442 | ||
2443 | res = kernel_address_update_ctx(ctx); | |
2444 | ||
2445 | if (res != ZEBRA_DPLANE_REQUEST_SUCCESS) | |
2446 | atomic_fetch_add_explicit(&zdplane_info.dg_intf_addr_errors, | |
2447 | 1, memory_order_relaxed); | |
2448 | ||
2449 | return res; | |
2450 | } | |
2451 | ||
c831033f MS |
2452 | /* |
2453 | * Kernel provider callback | |
2454 | */ | |
2455 | static int kernel_dplane_process_func(struct zebra_dplane_provider *prov) | |
7cdb1a84 | 2456 | { |
c831033f MS |
2457 | enum zebra_dplane_result res; |
2458 | struct zebra_dplane_ctx *ctx; | |
2459 | int counter, limit; | |
7cdb1a84 | 2460 | |
c831033f | 2461 | limit = dplane_provider_get_work_limit(prov); |
7cdb1a84 | 2462 | |
c831033f MS |
2463 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) |
2464 | zlog_debug("dplane provider '%s': processing", | |
2465 | dplane_provider_get_name(prov)); | |
7cdb1a84 | 2466 | |
c831033f | 2467 | for (counter = 0; counter < limit; counter++) { |
91f16812 | 2468 | |
c831033f MS |
2469 | ctx = dplane_provider_dequeue_in_ctx(prov); |
2470 | if (ctx == NULL) | |
2471 | break; | |
d8c16a95 | 2472 | |
9677961e MS |
2473 | /* A previous provider plugin may have asked to skip the |
2474 | * kernel update. | |
2475 | */ | |
2476 | if (dplane_ctx_is_skip_kernel(ctx)) { | |
2477 | res = ZEBRA_DPLANE_REQUEST_SUCCESS; | |
2478 | goto skip_one; | |
2479 | } | |
2480 | ||
16c628de MS |
2481 | /* Dispatch to appropriate kernel-facing apis */ |
2482 | switch (dplane_ctx_get_op(ctx)) { | |
1d11b21f | 2483 | |
16c628de MS |
2484 | case DPLANE_OP_ROUTE_INSTALL: |
2485 | case DPLANE_OP_ROUTE_UPDATE: | |
2486 | case DPLANE_OP_ROUTE_DELETE: | |
2487 | res = kernel_dplane_route_update(ctx); | |
2488 | break; | |
d8c16a95 | 2489 | |
16c628de MS |
2490 | case DPLANE_OP_LSP_INSTALL: |
2491 | case DPLANE_OP_LSP_UPDATE: | |
2492 | case DPLANE_OP_LSP_DELETE: | |
2493 | res = kernel_dplane_lsp_update(ctx); | |
2494 | break; | |
d8c16a95 | 2495 | |
c10a646d MS |
2496 | case DPLANE_OP_PW_INSTALL: |
2497 | case DPLANE_OP_PW_UNINSTALL: | |
2498 | res = kernel_dplane_pw_update(ctx); | |
2499 | break; | |
2500 | ||
64168803 MS |
2501 | case DPLANE_OP_ADDR_INSTALL: |
2502 | case DPLANE_OP_ADDR_UNINSTALL: | |
2503 | res = kernel_dplane_address_update(ctx); | |
2504 | break; | |
2505 | ||
104e3ad9 | 2506 | /* Ignore 'notifications' - no-op */ |
cf363e1b MS |
2507 | case DPLANE_OP_SYS_ROUTE_ADD: |
2508 | case DPLANE_OP_SYS_ROUTE_DELETE: | |
54818e3b | 2509 | case DPLANE_OP_ROUTE_NOTIFY: |
104e3ad9 | 2510 | case DPLANE_OP_LSP_NOTIFY: |
cf363e1b MS |
2511 | res = ZEBRA_DPLANE_REQUEST_SUCCESS; |
2512 | break; | |
2513 | ||
16c628de | 2514 | default: |
c831033f | 2515 | atomic_fetch_add_explicit( |
16c628de | 2516 | &zdplane_info.dg_other_errors, 1, |
c831033f | 2517 | memory_order_relaxed); |
d8c16a95 | 2518 | |
16c628de MS |
2519 | res = ZEBRA_DPLANE_REQUEST_FAILURE; |
2520 | break; | |
2521 | } | |
2522 | ||
9677961e | 2523 | skip_one: |
c831033f MS |
2524 | dplane_ctx_set_status(ctx, res); |
2525 | ||
2526 | dplane_provider_enqueue_out_ctx(prov, ctx); | |
2527 | } | |
2528 | ||
2529 | /* Ensure that we'll run the work loop again if there's still | |
2530 | * more work to do. | |
2531 | */ | |
2532 | if (counter >= limit) { | |
2533 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) | |
2534 | zlog_debug("dplane provider '%s' reached max updates %d", | |
2535 | dplane_provider_get_name(prov), counter); | |
2536 | ||
2537 | atomic_fetch_add_explicit(&zdplane_info.dg_update_yields, | |
2538 | 1, memory_order_relaxed); | |
2539 | ||
2540 | dplane_provider_work_ready(); | |
2541 | } | |
2542 | ||
2543 | return 0; | |
2544 | } | |
2545 | ||
e5a60d82 MS |
2546 | #if DPLANE_TEST_PROVIDER |
2547 | ||
c831033f MS |
2548 | /* |
2549 | * Test dataplane provider plugin | |
2550 | */ | |
2551 | ||
2552 | /* | |
2553 | * Test provider process callback | |
2554 | */ | |
2555 | static int test_dplane_process_func(struct zebra_dplane_provider *prov) | |
2556 | { | |
2557 | struct zebra_dplane_ctx *ctx; | |
2558 | int counter, limit; | |
2559 | ||
2560 | /* Just moving from 'in' queue to 'out' queue */ | |
2561 | ||
2562 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) | |
2563 | zlog_debug("dplane provider '%s': processing", | |
2564 | dplane_provider_get_name(prov)); | |
2565 | ||
2566 | limit = dplane_provider_get_work_limit(prov); | |
2567 | ||
2568 | for (counter = 0; counter < limit; counter++) { | |
2569 | ||
2570 | ctx = dplane_provider_dequeue_in_ctx(prov); | |
2571 | if (ctx == NULL) | |
2572 | break; | |
2573 | ||
cf363e1b MS |
2574 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) |
2575 | zlog_debug("dplane provider '%s': op %s", | |
2576 | dplane_provider_get_name(prov), | |
2577 | dplane_op2str(dplane_ctx_get_op(ctx))); | |
2578 | ||
c831033f MS |
2579 | dplane_ctx_set_status(ctx, ZEBRA_DPLANE_REQUEST_SUCCESS); |
2580 | ||
2581 | dplane_provider_enqueue_out_ctx(prov, ctx); | |
2582 | } | |
2583 | ||
c9d17fe8 MS |
2584 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) |
2585 | zlog_debug("dplane provider '%s': processed %d", | |
2586 | dplane_provider_get_name(prov), counter); | |
2587 | ||
c831033f MS |
2588 | /* Ensure that we'll run the work loop again if there's still |
2589 | * more work to do. | |
2590 | */ | |
2591 | if (counter >= limit) | |
2592 | dplane_provider_work_ready(); | |
2593 | ||
2594 | return 0; | |
2595 | } | |
2596 | ||
2597 | /* | |
2598 | * Test provider shutdown/fini callback | |
2599 | */ | |
2600 | static int test_dplane_shutdown_func(struct zebra_dplane_provider *prov, | |
2601 | bool early) | |
2602 | { | |
2603 | if (IS_ZEBRA_DEBUG_DPLANE) | |
2604 | zlog_debug("dplane provider '%s': %sshutdown", | |
2605 | dplane_provider_get_name(prov), | |
2606 | early ? "early " : ""); | |
2607 | ||
2608 | return 0; | |
2609 | } | |
e5a60d82 | 2610 | #endif /* DPLANE_TEST_PROVIDER */ |
c831033f MS |
2611 | |
2612 | /* | |
2613 | * Register default kernel provider | |
2614 | */ | |
2615 | static void dplane_provider_init(void) | |
2616 | { | |
2617 | int ret; | |
2618 | ||
2619 | ret = dplane_provider_register("Kernel", | |
2620 | DPLANE_PRIO_KERNEL, | |
1dd4ea8a | 2621 | DPLANE_PROV_FLAGS_DEFAULT, NULL, |
c831033f MS |
2622 | kernel_dplane_process_func, |
2623 | NULL, | |
1ff8a248 | 2624 | NULL, NULL); |
c831033f MS |
2625 | |
2626 | if (ret != AOK) | |
2627 | zlog_err("Unable to register kernel dplane provider: %d", | |
2628 | ret); | |
2629 | ||
e5a60d82 MS |
2630 | #if DPLANE_TEST_PROVIDER |
2631 | /* Optional test provider ... */ | |
c831033f MS |
2632 | ret = dplane_provider_register("Test", |
2633 | DPLANE_PRIO_PRE_KERNEL, | |
1dd4ea8a | 2634 | DPLANE_PROV_FLAGS_DEFAULT, NULL, |
c831033f MS |
2635 | test_dplane_process_func, |
2636 | test_dplane_shutdown_func, | |
1ff8a248 | 2637 | NULL /* data */, NULL); |
c831033f MS |
2638 | |
2639 | if (ret != AOK) | |
2640 | zlog_err("Unable to register test dplane provider: %d", | |
2641 | ret); | |
e5a60d82 | 2642 | #endif /* DPLANE_TEST_PROVIDER */ |
7cdb1a84 MS |
2643 | } |
2644 | ||
4dfd7a02 MS |
2645 | /* Indicates zebra shutdown/exit is in progress. Some operations may be |
2646 | * simplified or skipped during shutdown processing. | |
2647 | */ | |
2648 | bool dplane_is_in_shutdown(void) | |
2649 | { | |
25779064 | 2650 | return zdplane_info.dg_is_shutdown; |
4dfd7a02 MS |
2651 | } |
2652 | ||
2653 | /* | |
2654 | * Early or pre-shutdown, de-init notification api. This runs pretty | |
2655 | * early during zebra shutdown, as a signal to stop new work and prepare | |
2656 | * for updates generated by shutdown/cleanup activity, as zebra tries to | |
2657 | * remove everything it's responsible for. | |
c9d17fe8 | 2658 | * NB: This runs in the main zebra pthread context. |
4dfd7a02 MS |
2659 | */ |
2660 | void zebra_dplane_pre_finish(void) | |
2661 | { | |
2662 | if (IS_ZEBRA_DEBUG_DPLANE) | |
2663 | zlog_debug("Zebra dataplane pre-fini called"); | |
2664 | ||
25779064 | 2665 | zdplane_info.dg_is_shutdown = true; |
4dfd7a02 | 2666 | |
c9d17fe8 | 2667 | /* TODO -- Notify provider(s) of pending shutdown */ |
4dfd7a02 MS |
2668 | } |
2669 | ||
2670 | /* | |
2671 | * Utility to determine whether work remains enqueued within the dplane; | |
2672 | * used during system shutdown processing. | |
2673 | */ | |
2674 | static bool dplane_work_pending(void) | |
2675 | { | |
c9d17fe8 | 2676 | bool ret = false; |
25779064 | 2677 | struct zebra_dplane_ctx *ctx; |
c9d17fe8 | 2678 | struct zebra_dplane_provider *prov; |
4dfd7a02 | 2679 | |
c831033f MS |
2680 | /* TODO -- just checking incoming/pending work for now, must check |
2681 | * providers | |
2682 | */ | |
4dfd7a02 MS |
2683 | DPLANE_LOCK(); |
2684 | { | |
25779064 | 2685 | ctx = TAILQ_FIRST(&zdplane_info.dg_route_ctx_q); |
c9d17fe8 | 2686 | prov = TAILQ_FIRST(&zdplane_info.dg_providers_q); |
4dfd7a02 MS |
2687 | } |
2688 | DPLANE_UNLOCK(); | |
2689 | ||
c9d17fe8 MS |
2690 | if (ctx != NULL) { |
2691 | ret = true; | |
2692 | goto done; | |
2693 | } | |
2694 | ||
2695 | while (prov) { | |
2696 | ||
ad6aad4d | 2697 | dplane_provider_lock(prov); |
c9d17fe8 MS |
2698 | |
2699 | ctx = TAILQ_FIRST(&(prov->dp_ctx_in_q)); | |
2700 | if (ctx == NULL) | |
2701 | ctx = TAILQ_FIRST(&(prov->dp_ctx_out_q)); | |
2702 | ||
ad6aad4d | 2703 | dplane_provider_unlock(prov); |
c9d17fe8 MS |
2704 | |
2705 | if (ctx != NULL) | |
2706 | break; | |
2707 | ||
2708 | DPLANE_LOCK(); | |
2709 | prov = TAILQ_NEXT(prov, dp_prov_link); | |
2710 | DPLANE_UNLOCK(); | |
2711 | } | |
2712 | ||
2713 | if (ctx != NULL) | |
2714 | ret = true; | |
2715 | ||
2716 | done: | |
2717 | return ret; | |
4dfd7a02 MS |
2718 | } |
2719 | ||
2720 | /* | |
2721 | * Shutdown-time intermediate callback, used to determine when all pending | |
2722 | * in-flight updates are done. If there's still work to do, reschedules itself. | |
2723 | * If all work is done, schedules an event to the main zebra thread for | |
2724 | * final zebra shutdown. | |
2725 | * This runs in the dplane pthread context. | |
2726 | */ | |
2727 | static int dplane_check_shutdown_status(struct thread *event) | |
2728 | { | |
2729 | if (IS_ZEBRA_DEBUG_DPLANE) | |
2730 | zlog_debug("Zebra dataplane shutdown status check called"); | |
2731 | ||
2732 | if (dplane_work_pending()) { | |
2733 | /* Reschedule dplane check on a short timer */ | |
25779064 | 2734 | thread_add_timer_msec(zdplane_info.dg_master, |
4dfd7a02 MS |
2735 | dplane_check_shutdown_status, |
2736 | NULL, 100, | |
25779064 | 2737 | &zdplane_info.dg_t_shutdown_check); |
4dfd7a02 MS |
2738 | |
2739 | /* TODO - give up and stop waiting after a short time? */ | |
2740 | ||
2741 | } else { | |
2742 | /* We appear to be done - schedule a final callback event | |
2743 | * for the zebra main pthread. | |
2744 | */ | |
3801e764 | 2745 | thread_add_event(zrouter.master, zebra_finalize, NULL, 0, NULL); |
4dfd7a02 MS |
2746 | } |
2747 | ||
2748 | return 0; | |
2749 | } | |
2750 | ||
18c37974 | 2751 | /* |
1d11b21f | 2752 | * Shutdown, de-init api. This runs pretty late during shutdown, |
4dfd7a02 MS |
2753 | * after zebra has tried to free/remove/uninstall all routes during shutdown. |
2754 | * At this point, dplane work may still remain to be done, so we can't just | |
2755 | * blindly terminate. If there's still work to do, we'll periodically check | |
2756 | * and when done, we'll enqueue a task to the zebra main thread for final | |
2757 | * termination processing. | |
2758 | * | |
1d11b21f | 2759 | * NB: This runs in the main zebra thread context. |
18c37974 | 2760 | */ |
1d11b21f | 2761 | void zebra_dplane_finish(void) |
18c37974 | 2762 | { |
4dfd7a02 MS |
2763 | if (IS_ZEBRA_DEBUG_DPLANE) |
2764 | zlog_debug("Zebra dataplane fini called"); | |
2765 | ||
25779064 | 2766 | thread_add_event(zdplane_info.dg_master, |
4dfd7a02 | 2767 | dplane_check_shutdown_status, NULL, 0, |
25779064 | 2768 | &zdplane_info.dg_t_shutdown_check); |
4dfd7a02 MS |
2769 | } |
2770 | ||
c831033f MS |
2771 | /* |
2772 | * Main dataplane pthread event loop. The thread takes new incoming work | |
2773 | * and offers it to the first provider. It then iterates through the | |
2774 | * providers, taking complete work from each one and offering it | |
2775 | * to the next in order. At each step, a limited number of updates are | |
2776 | * processed during a cycle in order to provide some fairness. | |
14b0bc8e MS |
2777 | * |
2778 | * This loop through the providers is only run once, so that the dataplane | |
2779 | * pthread can look for other pending work - such as i/o work on behalf of | |
2780 | * providers. | |
c831033f MS |
2781 | */ |
2782 | static int dplane_thread_loop(struct thread *event) | |
2783 | { | |
2784 | struct dplane_ctx_q work_list; | |
2785 | struct dplane_ctx_q error_list; | |
2786 | struct zebra_dplane_provider *prov; | |
2787 | struct zebra_dplane_ctx *ctx, *tctx; | |
2788 | int limit, counter, error_counter; | |
c9d17fe8 | 2789 | uint64_t curr, high; |
c831033f MS |
2790 | |
2791 | /* Capture work limit per cycle */ | |
2792 | limit = zdplane_info.dg_updates_per_cycle; | |
2793 | ||
14b0bc8e | 2794 | /* Init temporary lists used to move contexts among providers */ |
c831033f | 2795 | TAILQ_INIT(&work_list); |
14b0bc8e MS |
2796 | TAILQ_INIT(&error_list); |
2797 | error_counter = 0; | |
c831033f MS |
2798 | |
2799 | /* Check for zebra shutdown */ | |
2800 | if (!zdplane_info.dg_run) | |
2801 | goto done; | |
2802 | ||
2803 | /* Dequeue some incoming work from zebra (if any) onto the temporary | |
2804 | * working list. | |
2805 | */ | |
2806 | DPLANE_LOCK(); | |
2807 | ||
2808 | /* Locate initial registered provider */ | |
2809 | prov = TAILQ_FIRST(&zdplane_info.dg_providers_q); | |
2810 | ||
14b0bc8e | 2811 | /* Move new work from incoming list to temp list */ |
c831033f MS |
2812 | for (counter = 0; counter < limit; counter++) { |
2813 | ctx = TAILQ_FIRST(&zdplane_info.dg_route_ctx_q); | |
2814 | if (ctx) { | |
2815 | TAILQ_REMOVE(&zdplane_info.dg_route_ctx_q, ctx, | |
2816 | zd_q_entries); | |
2817 | ||
c831033f MS |
2818 | ctx->zd_provider = prov->dp_id; |
2819 | ||
2820 | TAILQ_INSERT_TAIL(&work_list, ctx, zd_q_entries); | |
2821 | } else { | |
2822 | break; | |
2823 | } | |
2824 | } | |
2825 | ||
2826 | DPLANE_UNLOCK(); | |
2827 | ||
14b0bc8e MS |
2828 | atomic_fetch_sub_explicit(&zdplane_info.dg_routes_queued, counter, |
2829 | memory_order_relaxed); | |
2830 | ||
c831033f MS |
2831 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) |
2832 | zlog_debug("dplane: incoming new work counter: %d", counter); | |
2833 | ||
2834 | /* Iterate through the registered providers, offering new incoming | |
2835 | * work. If the provider has outgoing work in its queue, take that | |
2836 | * work for the next provider | |
2837 | */ | |
2838 | while (prov) { | |
2839 | ||
14b0bc8e MS |
2840 | /* At each iteration, the temporary work list has 'counter' |
2841 | * items. | |
2842 | */ | |
c831033f MS |
2843 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) |
2844 | zlog_debug("dplane enqueues %d new work to provider '%s'", | |
2845 | counter, dplane_provider_get_name(prov)); | |
2846 | ||
2847 | /* Capture current provider id in each context; check for | |
2848 | * error status. | |
2849 | */ | |
2850 | TAILQ_FOREACH_SAFE(ctx, &work_list, zd_q_entries, tctx) { | |
2851 | if (dplane_ctx_get_status(ctx) == | |
2852 | ZEBRA_DPLANE_REQUEST_SUCCESS) { | |
2853 | ctx->zd_provider = prov->dp_id; | |
2854 | } else { | |
2855 | /* | |
2856 | * TODO -- improve error-handling: recirc | |
2857 | * errors backwards so that providers can | |
2858 | * 'undo' their work (if they want to) | |
2859 | */ | |
2860 | ||
2861 | /* Move to error list; will be returned | |
2862 | * zebra main. | |
2863 | */ | |
2864 | TAILQ_REMOVE(&work_list, ctx, zd_q_entries); | |
2865 | TAILQ_INSERT_TAIL(&error_list, | |
2866 | ctx, zd_q_entries); | |
2867 | error_counter++; | |
2868 | } | |
2869 | } | |
2870 | ||
2871 | /* Enqueue new work to the provider */ | |
ad6aad4d | 2872 | dplane_provider_lock(prov); |
c831033f MS |
2873 | |
2874 | if (TAILQ_FIRST(&work_list)) | |
2875 | TAILQ_CONCAT(&(prov->dp_ctx_in_q), &work_list, | |
2876 | zd_q_entries); | |
2877 | ||
c9d17fe8 MS |
2878 | atomic_fetch_add_explicit(&prov->dp_in_counter, counter, |
2879 | memory_order_relaxed); | |
2880 | atomic_fetch_add_explicit(&prov->dp_in_queued, counter, | |
2881 | memory_order_relaxed); | |
2882 | curr = atomic_load_explicit(&prov->dp_in_queued, | |
2883 | memory_order_relaxed); | |
2884 | high = atomic_load_explicit(&prov->dp_in_max, | |
2885 | memory_order_relaxed); | |
2886 | if (curr > high) | |
2887 | atomic_store_explicit(&prov->dp_in_max, curr, | |
c831033f MS |
2888 | memory_order_relaxed); |
2889 | ||
ad6aad4d | 2890 | dplane_provider_unlock(prov); |
c831033f | 2891 | |
14b0bc8e MS |
2892 | /* Reset the temp list (though the 'concat' may have done this |
2893 | * already), and the counter | |
2894 | */ | |
c831033f MS |
2895 | TAILQ_INIT(&work_list); |
2896 | counter = 0; | |
2897 | ||
14b0bc8e MS |
2898 | /* Call into the provider code. Note that this is |
2899 | * unconditional: we offer to do work even if we don't enqueue | |
2900 | * any _new_ work. | |
2901 | */ | |
c831033f MS |
2902 | (*prov->dp_fp)(prov); |
2903 | ||
2904 | /* Check for zebra shutdown */ | |
2905 | if (!zdplane_info.dg_run) | |
2906 | break; | |
2907 | ||
2908 | /* Dequeue completed work from the provider */ | |
ad6aad4d | 2909 | dplane_provider_lock(prov); |
c831033f MS |
2910 | |
2911 | while (counter < limit) { | |
2912 | ctx = TAILQ_FIRST(&(prov->dp_ctx_out_q)); | |
2913 | if (ctx) { | |
2914 | TAILQ_REMOVE(&(prov->dp_ctx_out_q), ctx, | |
2915 | zd_q_entries); | |
2916 | ||
2917 | TAILQ_INSERT_TAIL(&work_list, | |
2918 | ctx, zd_q_entries); | |
2919 | counter++; | |
2920 | } else | |
2921 | break; | |
2922 | } | |
2923 | ||
ad6aad4d | 2924 | dplane_provider_unlock(prov); |
c831033f MS |
2925 | |
2926 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) | |
2927 | zlog_debug("dplane dequeues %d completed work from provider %s", | |
2928 | counter, dplane_provider_get_name(prov)); | |
2929 | ||
2930 | /* Locate next provider */ | |
2931 | DPLANE_LOCK(); | |
2932 | prov = TAILQ_NEXT(prov, dp_prov_link); | |
2933 | DPLANE_UNLOCK(); | |
c831033f MS |
2934 | } |
2935 | ||
2936 | /* After all providers have been serviced, enqueue any completed | |
14b0bc8e | 2937 | * work and any errors back to zebra so it can process the results. |
c831033f | 2938 | */ |
c831033f | 2939 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) |
14b0bc8e MS |
2940 | zlog_debug("dplane has %d completed, %d errors, for zebra main", |
2941 | counter, error_counter); | |
c831033f MS |
2942 | |
2943 | /* | |
4c206c8f | 2944 | * Hand lists through the api to zebra main, |
c831033f MS |
2945 | * to reduce the number of lock/unlock cycles |
2946 | */ | |
14b0bc8e | 2947 | |
4c206c8f MS |
2948 | /* Call through to zebra main */ |
2949 | (zdplane_info.dg_results_cb)(&error_list); | |
14b0bc8e | 2950 | |
4c206c8f | 2951 | TAILQ_INIT(&error_list); |
14b0bc8e | 2952 | |
4c206c8f MS |
2953 | /* Call through to zebra main */ |
2954 | (zdplane_info.dg_results_cb)(&work_list); | |
c831033f | 2955 | |
4c206c8f | 2956 | TAILQ_INIT(&work_list); |
c831033f MS |
2957 | |
2958 | done: | |
2959 | return 0; | |
2960 | } | |
2961 | ||
4dfd7a02 MS |
2962 | /* |
2963 | * Final phase of shutdown, after all work enqueued to dplane has been | |
2964 | * processed. This is called from the zebra main pthread context. | |
2965 | */ | |
2966 | void zebra_dplane_shutdown(void) | |
2967 | { | |
2968 | if (IS_ZEBRA_DEBUG_DPLANE) | |
2969 | zlog_debug("Zebra dataplane shutdown called"); | |
1d11b21f MS |
2970 | |
2971 | /* Stop dplane thread, if it's running */ | |
2972 | ||
25779064 | 2973 | zdplane_info.dg_run = false; |
1d11b21f | 2974 | |
25779064 | 2975 | THREAD_OFF(zdplane_info.dg_t_update); |
1d11b21f | 2976 | |
d8c16a95 MS |
2977 | frr_pthread_stop(zdplane_info.dg_pthread, NULL); |
2978 | ||
2979 | /* Destroy pthread */ | |
2980 | frr_pthread_destroy(zdplane_info.dg_pthread); | |
2981 | zdplane_info.dg_pthread = NULL; | |
2982 | zdplane_info.dg_master = NULL; | |
4dfd7a02 | 2983 | |
c831033f MS |
2984 | /* TODO -- Notify provider(s) of final shutdown */ |
2985 | ||
2986 | /* TODO -- Clean-up provider objects */ | |
2987 | ||
2988 | /* TODO -- Clean queue(s), free memory */ | |
2989 | } | |
2990 | ||
2991 | /* | |
2992 | * Initialize the dataplane module during startup, internal/private version | |
2993 | */ | |
2561d12e | 2994 | static void zebra_dplane_init_internal(void) |
c831033f MS |
2995 | { |
2996 | memset(&zdplane_info, 0, sizeof(zdplane_info)); | |
2997 | ||
2998 | pthread_mutex_init(&zdplane_info.dg_mutex, NULL); | |
1d11b21f | 2999 | |
c831033f MS |
3000 | TAILQ_INIT(&zdplane_info.dg_route_ctx_q); |
3001 | TAILQ_INIT(&zdplane_info.dg_providers_q); | |
1d11b21f | 3002 | |
c831033f MS |
3003 | zdplane_info.dg_updates_per_cycle = DPLANE_DEFAULT_NEW_WORK; |
3004 | ||
3005 | zdplane_info.dg_max_queued_updates = DPLANE_DEFAULT_MAX_QUEUED; | |
3006 | ||
3007 | /* Register default kernel 'provider' during init */ | |
3008 | dplane_provider_init(); | |
e5a60d82 | 3009 | } |
c831033f | 3010 | |
e5a60d82 MS |
3011 | /* |
3012 | * Start the dataplane pthread. This step needs to be run later than the | |
3013 | * 'init' step, in case zebra has fork-ed. | |
3014 | */ | |
3015 | void zebra_dplane_start(void) | |
3016 | { | |
1dd4ea8a | 3017 | struct zebra_dplane_provider *prov; |
c831033f MS |
3018 | struct frr_pthread_attr pattr = { |
3019 | .start = frr_pthread_attr_default.start, | |
3020 | .stop = frr_pthread_attr_default.stop | |
3021 | }; | |
3022 | ||
1dd4ea8a MS |
3023 | /* Start dataplane pthread */ |
3024 | ||
c831033f MS |
3025 | zdplane_info.dg_pthread = frr_pthread_new(&pattr, "Zebra dplane thread", |
3026 | "Zebra dplane"); | |
3027 | ||
3028 | zdplane_info.dg_master = zdplane_info.dg_pthread->master; | |
3029 | ||
e5a60d82 MS |
3030 | zdplane_info.dg_run = true; |
3031 | ||
c831033f MS |
3032 | /* Enqueue an initial event for the dataplane pthread */ |
3033 | thread_add_event(zdplane_info.dg_master, dplane_thread_loop, NULL, 0, | |
3034 | &zdplane_info.dg_t_update); | |
3035 | ||
1dd4ea8a MS |
3036 | /* Call start callbacks for registered providers */ |
3037 | ||
3038 | DPLANE_LOCK(); | |
3039 | prov = TAILQ_FIRST(&zdplane_info.dg_providers_q); | |
3040 | DPLANE_UNLOCK(); | |
3041 | ||
3042 | while (prov) { | |
3043 | ||
3044 | if (prov->dp_start) | |
3045 | (prov->dp_start)(prov); | |
3046 | ||
3047 | /* Locate next provider */ | |
3048 | DPLANE_LOCK(); | |
3049 | prov = TAILQ_NEXT(prov, dp_prov_link); | |
3050 | DPLANE_UNLOCK(); | |
3051 | } | |
3052 | ||
c831033f | 3053 | frr_pthread_run(zdplane_info.dg_pthread, NULL); |
18c37974 MS |
3054 | } |
3055 | ||
7cdb1a84 | 3056 | /* |
b8e0423d | 3057 | * Initialize the dataplane module at startup; called by zebra rib_init() |
7cdb1a84 | 3058 | */ |
4c206c8f | 3059 | void zebra_dplane_init(int (*results_fp)(struct dplane_ctx_q *)) |
7cdb1a84 | 3060 | { |
2561d12e | 3061 | zebra_dplane_init_internal(); |
4c206c8f | 3062 | zdplane_info.dg_results_cb = results_fp; |
7cdb1a84 | 3063 | } |