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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 { | |
d613b8e1 MS |
112 | int type; |
113 | int af; | |
114 | int status; | |
115 | uint32_t flags; | |
16d69787 | 116 | union g_addr dest; |
d613b8e1 MS |
117 | mpls_label_t local_label; |
118 | mpls_label_t remote_label; | |
119 | ||
16d69787 MS |
120 | /* Nexthops */ |
121 | struct nexthop_group nhg; | |
122 | ||
d613b8e1 MS |
123 | union pw_protocol_fields fields; |
124 | }; | |
125 | ||
a4a4802a MS |
126 | /* |
127 | * Interface/prefix info for the dataplane | |
128 | */ | |
129 | struct dplane_intf_info { | |
130 | ||
a4a4802a MS |
131 | uint32_t metric; |
132 | uint32_t flags; | |
133 | ||
134 | #define DPLANE_INTF_CONNECTED (1 << 0) /* Connected peer, p2p */ | |
135 | #define DPLANE_INTF_SECONDARY (1 << 1) | |
64168803 MS |
136 | #define DPLANE_INTF_BROADCAST (1 << 2) |
137 | #define DPLANE_INTF_HAS_DEST (1 << 3) | |
138 | #define DPLANE_INTF_HAS_LABEL (1 << 4) | |
a4a4802a MS |
139 | |
140 | /* Interface address/prefix */ | |
141 | struct prefix prefix; | |
142 | ||
143 | /* Dest address, for p2p, or broadcast prefix */ | |
144 | struct prefix dest_prefix; | |
145 | ||
146 | char *label; | |
147 | char label_buf[32]; | |
148 | }; | |
149 | ||
7597ac7b MS |
150 | /* |
151 | * MAC address info for the dataplane. | |
152 | */ | |
153 | struct dplane_mac_info { | |
154 | vlanid_t vid; | |
155 | struct ethaddr mac; | |
156 | struct in_addr vtep_ip; | |
157 | bool is_sticky; | |
158 | ||
159 | }; | |
160 | ||
0f461727 MS |
161 | /* |
162 | * The context block used to exchange info about route updates across | |
163 | * the boundary between the zebra main context (and pthread) and the | |
164 | * dataplane layer (and pthread). | |
165 | */ | |
166 | struct zebra_dplane_ctx { | |
167 | ||
168 | /* Operation code */ | |
169 | enum dplane_op_e zd_op; | |
170 | ||
171 | /* Status on return */ | |
172 | enum zebra_dplane_result zd_status; | |
173 | ||
174 | /* Dplane provider id */ | |
175 | uint32_t zd_provider; | |
176 | ||
177 | /* Flags - used by providers, e.g. */ | |
178 | int zd_flags; | |
179 | ||
180 | bool zd_is_update; | |
181 | ||
182 | uint32_t zd_seq; | |
183 | uint32_t zd_old_seq; | |
184 | ||
0024a559 MS |
185 | /* Some updates may be generated by notifications: allow the |
186 | * plugin to notice and ignore results from its own notifications. | |
187 | */ | |
188 | uint32_t zd_notif_provider; | |
189 | ||
0f461727 MS |
190 | /* TODO -- internal/sub-operation status? */ |
191 | enum zebra_dplane_result zd_remote_status; | |
192 | enum zebra_dplane_result zd_kernel_status; | |
193 | ||
194 | vrf_id_t zd_vrf_id; | |
195 | uint32_t zd_table_id; | |
196 | ||
7c7ef4a8 MS |
197 | char zd_ifname[INTERFACE_NAMSIZ]; |
198 | ifindex_t zd_ifindex; | |
199 | ||
a4a4802a | 200 | /* Support info for different kinds of updates */ |
0f461727 MS |
201 | union { |
202 | struct dplane_route_info rinfo; | |
203 | zebra_lsp_t lsp; | |
d613b8e1 | 204 | struct dplane_pw_info pw; |
a4a4802a | 205 | struct dplane_intf_info intf; |
7597ac7b | 206 | struct dplane_mac_info macinfo; |
0f461727 MS |
207 | } u; |
208 | ||
209 | /* Namespace info, used especially for netlink kernel communication */ | |
210 | struct zebra_dplane_info zd_ns_info; | |
211 | ||
7cdb1a84 | 212 | /* Embedded list linkage */ |
25779064 | 213 | TAILQ_ENTRY(zebra_dplane_ctx) zd_q_entries; |
7cdb1a84 MS |
214 | }; |
215 | ||
c831033f MS |
216 | /* Flag that can be set by a pre-kernel provider as a signal that an update |
217 | * should bypass the kernel. | |
218 | */ | |
219 | #define DPLANE_CTX_FLAG_NO_KERNEL 0x01 | |
220 | ||
221 | ||
7cdb1a84 MS |
222 | /* |
223 | * Registration block for one dataplane provider. | |
224 | */ | |
25779064 | 225 | struct zebra_dplane_provider { |
7cdb1a84 MS |
226 | /* Name */ |
227 | char dp_name[DPLANE_PROVIDER_NAMELEN + 1]; | |
228 | ||
229 | /* Priority, for ordering among providers */ | |
230 | uint8_t dp_priority; | |
231 | ||
232 | /* Id value */ | |
233 | uint32_t dp_id; | |
234 | ||
c831033f MS |
235 | /* Mutex */ |
236 | pthread_mutex_t dp_mutex; | |
237 | ||
238 | /* Plugin-provided extra data */ | |
239 | void *dp_data; | |
240 | ||
241 | /* Flags */ | |
242 | int dp_flags; | |
243 | ||
1dd4ea8a MS |
244 | int (*dp_start)(struct zebra_dplane_provider *prov); |
245 | ||
4c206c8f | 246 | int (*dp_fp)(struct zebra_dplane_provider *prov); |
7cdb1a84 | 247 | |
4c206c8f | 248 | int (*dp_fini)(struct zebra_dplane_provider *prov, bool early_p); |
18c37974 | 249 | |
0545c373 | 250 | _Atomic uint32_t dp_in_counter; |
c9d17fe8 | 251 | _Atomic uint32_t dp_in_queued; |
c831033f MS |
252 | _Atomic uint32_t dp_in_max; |
253 | _Atomic uint32_t dp_out_counter; | |
c9d17fe8 | 254 | _Atomic uint32_t dp_out_queued; |
c831033f | 255 | _Atomic uint32_t dp_out_max; |
0545c373 | 256 | _Atomic uint32_t dp_error_counter; |
1d11b21f | 257 | |
c831033f MS |
258 | /* Queue of contexts inbound to the provider */ |
259 | struct dplane_ctx_q dp_ctx_in_q; | |
260 | ||
261 | /* Queue of completed contexts outbound from the provider back | |
262 | * towards the dataplane module. | |
263 | */ | |
264 | struct dplane_ctx_q dp_ctx_out_q; | |
7cdb1a84 | 265 | |
c831033f MS |
266 | /* Embedded list linkage for provider objects */ |
267 | TAILQ_ENTRY(zebra_dplane_provider) dp_prov_link; | |
7cdb1a84 MS |
268 | }; |
269 | ||
270 | /* | |
271 | * Globals | |
272 | */ | |
25779064 | 273 | static struct zebra_dplane_globals { |
7cdb1a84 MS |
274 | /* Mutex to control access to dataplane components */ |
275 | pthread_mutex_t dg_mutex; | |
276 | ||
277 | /* Results callback registered by zebra 'core' */ | |
4c206c8f | 278 | int (*dg_results_cb)(struct dplane_ctx_q *ctxlist); |
7cdb1a84 | 279 | |
4dfd7a02 MS |
280 | /* Sentinel for beginning of shutdown */ |
281 | volatile bool dg_is_shutdown; | |
282 | ||
283 | /* Sentinel for end of shutdown */ | |
1d11b21f MS |
284 | volatile bool dg_run; |
285 | ||
3fe4ccc4 MS |
286 | /* Update context queue inbound to the dataplane */ |
287 | TAILQ_HEAD(zdg_ctx_q, zebra_dplane_ctx) dg_update_ctx_q; | |
7cdb1a84 MS |
288 | |
289 | /* Ordered list of providers */ | |
25779064 | 290 | TAILQ_HEAD(zdg_prov_q, zebra_dplane_provider) dg_providers_q; |
7cdb1a84 | 291 | |
1d11b21f | 292 | /* Counter used to assign internal ids to providers */ |
b8e0423d MS |
293 | uint32_t dg_provider_id; |
294 | ||
91f16812 MS |
295 | /* Limit number of pending, unprocessed updates */ |
296 | _Atomic uint32_t dg_max_queued_updates; | |
297 | ||
cf363e1b MS |
298 | /* Control whether system route notifications should be produced. */ |
299 | bool dg_sys_route_notifs; | |
300 | ||
c831033f MS |
301 | /* Limit number of new updates dequeued at once, to pace an |
302 | * incoming burst. | |
303 | */ | |
304 | uint32_t dg_updates_per_cycle; | |
305 | ||
0545c373 | 306 | _Atomic uint32_t dg_routes_in; |
1d11b21f | 307 | _Atomic uint32_t dg_routes_queued; |
4dfd7a02 | 308 | _Atomic uint32_t dg_routes_queued_max; |
0545c373 | 309 | _Atomic uint32_t dg_route_errors; |
16c628de MS |
310 | _Atomic uint32_t dg_other_errors; |
311 | ||
312 | _Atomic uint32_t dg_lsps_in; | |
16c628de MS |
313 | _Atomic uint32_t dg_lsp_errors; |
314 | ||
97d8d05a MS |
315 | _Atomic uint32_t dg_pws_in; |
316 | _Atomic uint32_t dg_pw_errors; | |
317 | ||
64168803 MS |
318 | _Atomic uint32_t dg_intf_addrs_in; |
319 | _Atomic uint32_t dg_intf_addr_errors; | |
320 | ||
7597ac7b MS |
321 | _Atomic uint32_t dg_macs_in; |
322 | _Atomic uint32_t dg_mac_errors; | |
323 | ||
c831033f | 324 | _Atomic uint32_t dg_update_yields; |
1d11b21f | 325 | |
d8c16a95 MS |
326 | /* Dataplane pthread */ |
327 | struct frr_pthread *dg_pthread; | |
328 | ||
7cdb1a84 MS |
329 | /* Event-delivery context 'master' for the dplane */ |
330 | struct thread_master *dg_master; | |
331 | ||
332 | /* Event/'thread' pointer for queued updates */ | |
333 | struct thread *dg_t_update; | |
334 | ||
4dfd7a02 MS |
335 | /* Event pointer for pending shutdown check loop */ |
336 | struct thread *dg_t_shutdown_check; | |
337 | ||
25779064 | 338 | } zdplane_info; |
7cdb1a84 MS |
339 | |
340 | /* | |
c831033f | 341 | * Lock and unlock for interactions with the zebra 'core' pthread |
7cdb1a84 | 342 | */ |
25779064 | 343 | #define DPLANE_LOCK() pthread_mutex_lock(&zdplane_info.dg_mutex) |
25779064 | 344 | #define DPLANE_UNLOCK() pthread_mutex_unlock(&zdplane_info.dg_mutex) |
7cdb1a84 | 345 | |
c831033f MS |
346 | |
347 | /* | |
348 | * Lock and unlock for individual providers | |
349 | */ | |
350 | #define DPLANE_PROV_LOCK(p) pthread_mutex_lock(&((p)->dp_mutex)) | |
351 | #define DPLANE_PROV_UNLOCK(p) pthread_mutex_unlock(&((p)->dp_mutex)) | |
352 | ||
7cdb1a84 | 353 | /* Prototypes */ |
c831033f | 354 | static int dplane_thread_loop(struct thread *event); |
62b8bb7a MS |
355 | static void dplane_info_from_zns(struct zebra_dplane_info *ns_info, |
356 | struct zebra_ns *zns); | |
16c628de MS |
357 | static enum zebra_dplane_result lsp_update_internal(zebra_lsp_t *lsp, |
358 | enum dplane_op_e op); | |
97d8d05a MS |
359 | static enum zebra_dplane_result pw_update_internal(struct zebra_pw *pw, |
360 | enum dplane_op_e op); | |
64168803 MS |
361 | static enum zebra_dplane_result intf_addr_update_internal( |
362 | const struct interface *ifp, const struct connected *ifc, | |
363 | enum dplane_op_e op); | |
7597ac7b MS |
364 | static enum zebra_dplane_result mac_update_internal( |
365 | enum dplane_op_e op, const struct interface *ifp, | |
366 | vlanid_t vid, const struct ethaddr *mac, | |
367 | struct in_addr vtep_ip, bool sticky); | |
7cdb1a84 MS |
368 | |
369 | /* | |
370 | * Public APIs | |
371 | */ | |
372 | ||
ad6aad4d MS |
373 | /* Obtain thread_master for dataplane thread */ |
374 | struct thread_master *dplane_get_thread_master(void) | |
375 | { | |
376 | return zdplane_info.dg_master; | |
377 | } | |
378 | ||
7cdb1a84 | 379 | /* |
b8e0423d | 380 | * Allocate a dataplane update context |
7cdb1a84 | 381 | */ |
593e4eb1 | 382 | struct zebra_dplane_ctx *dplane_ctx_alloc(void) |
7cdb1a84 | 383 | { |
25779064 | 384 | struct zebra_dplane_ctx *p; |
7cdb1a84 | 385 | |
b8e0423d MS |
386 | /* TODO -- just alloc'ing memory, but would like to maintain |
387 | * a pool | |
388 | */ | |
25779064 | 389 | p = XCALLOC(MTYPE_DP_CTX, sizeof(struct zebra_dplane_ctx)); |
7cdb1a84 | 390 | |
5709131c | 391 | return p; |
7cdb1a84 MS |
392 | } |
393 | ||
cf363e1b MS |
394 | /* Enable system route notifications */ |
395 | void dplane_enable_sys_route_notifs(void) | |
396 | { | |
397 | zdplane_info.dg_sys_route_notifs = true; | |
398 | } | |
399 | ||
7cdb1a84 | 400 | /* |
b8e0423d | 401 | * Free a dataplane results context. |
7cdb1a84 | 402 | */ |
25779064 | 403 | static void dplane_ctx_free(struct zebra_dplane_ctx **pctx) |
7cdb1a84 | 404 | { |
16c628de MS |
405 | if (pctx == NULL) |
406 | return; | |
7cdb1a84 | 407 | |
16c628de MS |
408 | DPLANE_CTX_VALID(*pctx); |
409 | ||
410 | /* TODO -- just freeing memory, but would like to maintain | |
411 | * a pool | |
412 | */ | |
413 | ||
414 | /* Some internal allocations may need to be freed, depending on | |
415 | * the type of info captured in the ctx. | |
416 | */ | |
417 | switch ((*pctx)->zd_op) { | |
418 | case DPLANE_OP_ROUTE_INSTALL: | |
419 | case DPLANE_OP_ROUTE_UPDATE: | |
420 | case DPLANE_OP_ROUTE_DELETE: | |
cf363e1b MS |
421 | case DPLANE_OP_SYS_ROUTE_ADD: |
422 | case DPLANE_OP_SYS_ROUTE_DELETE: | |
54818e3b | 423 | case DPLANE_OP_ROUTE_NOTIFY: |
b8e0423d | 424 | |
16c628de | 425 | /* Free allocated nexthops */ |
0f461727 | 426 | if ((*pctx)->u.rinfo.zd_ng.nexthop) { |
7cdb1a84 | 427 | /* This deals with recursive nexthops too */ |
0f461727 | 428 | nexthops_free((*pctx)->u.rinfo.zd_ng.nexthop); |
16c628de MS |
429 | |
430 | (*pctx)->u.rinfo.zd_ng.nexthop = NULL; | |
7cdb1a84 MS |
431 | } |
432 | ||
0f461727 | 433 | if ((*pctx)->u.rinfo.zd_old_ng.nexthop) { |
4dfd7a02 | 434 | /* This deals with recursive nexthops too */ |
0f461727 | 435 | nexthops_free((*pctx)->u.rinfo.zd_old_ng.nexthop); |
16c628de MS |
436 | |
437 | (*pctx)->u.rinfo.zd_old_ng.nexthop = NULL; | |
438 | } | |
439 | ||
440 | break; | |
441 | ||
442 | case DPLANE_OP_LSP_INSTALL: | |
443 | case DPLANE_OP_LSP_UPDATE: | |
444 | case DPLANE_OP_LSP_DELETE: | |
104e3ad9 | 445 | case DPLANE_OP_LSP_NOTIFY: |
16c628de MS |
446 | { |
447 | zebra_nhlfe_t *nhlfe, *next; | |
448 | ||
449 | /* Free allocated NHLFEs */ | |
450 | for (nhlfe = (*pctx)->u.lsp.nhlfe_list; nhlfe; nhlfe = next) { | |
451 | next = nhlfe->next; | |
452 | ||
453 | zebra_mpls_nhlfe_del(nhlfe); | |
01ce7cba MS |
454 | } |
455 | ||
16c628de MS |
456 | /* Clear pointers in lsp struct, in case we're cacheing |
457 | * free context structs. | |
458 | */ | |
459 | (*pctx)->u.lsp.nhlfe_list = NULL; | |
460 | (*pctx)->u.lsp.best_nhlfe = NULL; | |
461 | ||
462 | break; | |
463 | } | |
464 | ||
97d8d05a MS |
465 | case DPLANE_OP_PW_INSTALL: |
466 | case DPLANE_OP_PW_UNINSTALL: | |
16d69787 MS |
467 | /* Free allocated nexthops */ |
468 | if ((*pctx)->u.pw.nhg.nexthop) { | |
469 | /* This deals with recursive nexthops too */ | |
470 | nexthops_free((*pctx)->u.pw.nhg.nexthop); | |
471 | ||
472 | (*pctx)->u.pw.nhg.nexthop = NULL; | |
473 | } | |
474 | break; | |
475 | ||
a4a4802a MS |
476 | case DPLANE_OP_ADDR_INSTALL: |
477 | case DPLANE_OP_ADDR_UNINSTALL: | |
64168803 MS |
478 | /* Maybe free label string, if allocated */ |
479 | if ((*pctx)->u.intf.label != NULL && | |
480 | (*pctx)->u.intf.label != (*pctx)->u.intf.label_buf) { | |
481 | free((*pctx)->u.intf.label); | |
482 | (*pctx)->u.intf.label = NULL; | |
483 | } | |
484 | break; | |
485 | ||
7597ac7b MS |
486 | case DPLANE_OP_MAC_INSTALL: |
487 | case DPLANE_OP_MAC_DELETE: | |
f2412b2d MS |
488 | case DPLANE_OP_NEIGH_INSTALL: |
489 | case DPLANE_OP_NEIGH_DELETE: | |
16c628de MS |
490 | case DPLANE_OP_NONE: |
491 | break; | |
7cdb1a84 | 492 | } |
16c628de MS |
493 | |
494 | XFREE(MTYPE_DP_CTX, *pctx); | |
495 | *pctx = NULL; | |
7cdb1a84 MS |
496 | } |
497 | ||
498 | /* | |
499 | * Return a context block to the dplane module after processing | |
500 | */ | |
25779064 | 501 | void dplane_ctx_fini(struct zebra_dplane_ctx **pctx) |
7cdb1a84 | 502 | { |
14b0bc8e | 503 | /* TODO -- maintain pool; for now, just free */ |
7cdb1a84 MS |
504 | dplane_ctx_free(pctx); |
505 | } | |
506 | ||
507 | /* Enqueue a context block */ | |
25779064 MS |
508 | void dplane_ctx_enqueue_tail(struct dplane_ctx_q *q, |
509 | const struct zebra_dplane_ctx *ctx) | |
7cdb1a84 | 510 | { |
25779064 | 511 | TAILQ_INSERT_TAIL(q, (struct zebra_dplane_ctx *)ctx, zd_q_entries); |
7cdb1a84 MS |
512 | } |
513 | ||
14b0bc8e MS |
514 | /* Append a list of context blocks to another list */ |
515 | void dplane_ctx_list_append(struct dplane_ctx_q *to_list, | |
516 | struct dplane_ctx_q *from_list) | |
517 | { | |
518 | if (TAILQ_FIRST(from_list)) { | |
519 | TAILQ_CONCAT(to_list, from_list, zd_q_entries); | |
520 | ||
521 | /* And clear 'from' list */ | |
522 | TAILQ_INIT(from_list); | |
523 | } | |
524 | } | |
525 | ||
7cdb1a84 | 526 | /* Dequeue a context block from the head of a list */ |
68b375e0 | 527 | struct zebra_dplane_ctx *dplane_ctx_dequeue(struct dplane_ctx_q *q) |
7cdb1a84 | 528 | { |
25779064 | 529 | struct zebra_dplane_ctx *ctx = TAILQ_FIRST(q); |
5709131c MS |
530 | |
531 | if (ctx) | |
7cdb1a84 | 532 | TAILQ_REMOVE(q, ctx, zd_q_entries); |
7cdb1a84 | 533 | |
68b375e0 | 534 | return ctx; |
7cdb1a84 MS |
535 | } |
536 | ||
537 | /* | |
538 | * Accessors for information from the context object | |
539 | */ | |
25779064 MS |
540 | enum zebra_dplane_result dplane_ctx_get_status( |
541 | const struct zebra_dplane_ctx *ctx) | |
7cdb1a84 MS |
542 | { |
543 | DPLANE_CTX_VALID(ctx); | |
544 | ||
5709131c | 545 | return ctx->zd_status; |
7cdb1a84 MS |
546 | } |
547 | ||
c831033f MS |
548 | void dplane_ctx_set_status(struct zebra_dplane_ctx *ctx, |
549 | enum zebra_dplane_result status) | |
550 | { | |
551 | DPLANE_CTX_VALID(ctx); | |
552 | ||
553 | ctx->zd_status = status; | |
554 | } | |
555 | ||
556 | /* Retrieve last/current provider id */ | |
557 | uint32_t dplane_ctx_get_provider(const struct zebra_dplane_ctx *ctx) | |
558 | { | |
559 | DPLANE_CTX_VALID(ctx); | |
560 | return ctx->zd_provider; | |
561 | } | |
562 | ||
563 | /* Providers run before the kernel can control whether a kernel | |
564 | * update should be done. | |
565 | */ | |
566 | void dplane_ctx_set_skip_kernel(struct zebra_dplane_ctx *ctx) | |
567 | { | |
568 | DPLANE_CTX_VALID(ctx); | |
569 | ||
570 | SET_FLAG(ctx->zd_flags, DPLANE_CTX_FLAG_NO_KERNEL); | |
571 | } | |
572 | ||
573 | bool dplane_ctx_is_skip_kernel(const struct zebra_dplane_ctx *ctx) | |
574 | { | |
575 | DPLANE_CTX_VALID(ctx); | |
576 | ||
577 | return CHECK_FLAG(ctx->zd_flags, DPLANE_CTX_FLAG_NO_KERNEL); | |
578 | } | |
579 | ||
593e4eb1 MS |
580 | void dplane_ctx_set_op(struct zebra_dplane_ctx *ctx, enum dplane_op_e op) |
581 | { | |
582 | DPLANE_CTX_VALID(ctx); | |
583 | ctx->zd_op = op; | |
584 | } | |
585 | ||
25779064 | 586 | enum dplane_op_e dplane_ctx_get_op(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
587 | { |
588 | DPLANE_CTX_VALID(ctx); | |
589 | ||
5709131c | 590 | return ctx->zd_op; |
7cdb1a84 MS |
591 | } |
592 | ||
5709131c | 593 | const char *dplane_op2str(enum dplane_op_e op) |
7cdb1a84 MS |
594 | { |
595 | const char *ret = "UNKNOWN"; | |
596 | ||
5709131c | 597 | switch (op) { |
7cdb1a84 MS |
598 | case DPLANE_OP_NONE: |
599 | ret = "NONE"; | |
600 | break; | |
601 | ||
602 | /* Route update */ | |
603 | case DPLANE_OP_ROUTE_INSTALL: | |
604 | ret = "ROUTE_INSTALL"; | |
605 | break; | |
606 | case DPLANE_OP_ROUTE_UPDATE: | |
607 | ret = "ROUTE_UPDATE"; | |
608 | break; | |
609 | case DPLANE_OP_ROUTE_DELETE: | |
610 | ret = "ROUTE_DELETE"; | |
611 | break; | |
54818e3b MS |
612 | case DPLANE_OP_ROUTE_NOTIFY: |
613 | ret = "ROUTE_NOTIFY"; | |
614 | break; | |
7cdb1a84 | 615 | |
16c628de MS |
616 | case DPLANE_OP_LSP_INSTALL: |
617 | ret = "LSP_INSTALL"; | |
618 | break; | |
619 | case DPLANE_OP_LSP_UPDATE: | |
620 | ret = "LSP_UPDATE"; | |
621 | break; | |
622 | case DPLANE_OP_LSP_DELETE: | |
623 | ret = "LSP_DELETE"; | |
624 | break; | |
104e3ad9 MS |
625 | case DPLANE_OP_LSP_NOTIFY: |
626 | ret = "LSP_NOTIFY"; | |
627 | break; | |
16c628de | 628 | |
97d8d05a MS |
629 | case DPLANE_OP_PW_INSTALL: |
630 | ret = "PW_INSTALL"; | |
631 | break; | |
632 | case DPLANE_OP_PW_UNINSTALL: | |
633 | ret = "PW_UNINSTALL"; | |
634 | break; | |
635 | ||
cf363e1b MS |
636 | case DPLANE_OP_SYS_ROUTE_ADD: |
637 | ret = "SYS_ROUTE_ADD"; | |
638 | break; | |
639 | case DPLANE_OP_SYS_ROUTE_DELETE: | |
640 | ret = "SYS_ROUTE_DEL"; | |
641 | break; | |
a4a4802a MS |
642 | |
643 | case DPLANE_OP_ADDR_INSTALL: | |
644 | ret = "ADDR_INSTALL"; | |
645 | break; | |
646 | case DPLANE_OP_ADDR_UNINSTALL: | |
647 | ret = "ADDR_UNINSTALL"; | |
648 | break; | |
649 | ||
7597ac7b MS |
650 | case DPLANE_OP_MAC_INSTALL: |
651 | ret = "MAC_INSTALL"; | |
652 | break; | |
653 | case DPLANE_OP_MAC_DELETE: | |
654 | ret = "MAC_DELETE"; | |
655 | break; | |
f2412b2d MS |
656 | |
657 | case DPLANE_OP_NEIGH_INSTALL: | |
658 | ret = "NEIGH_INSTALL"; | |
659 | break; | |
660 | case DPLANE_OP_NEIGH_DELETE: | |
661 | ret = "NEIGH_DELETE"; | |
662 | break; | |
5b94ec50 | 663 | } |
7cdb1a84 | 664 | |
5709131c | 665 | return ret; |
7cdb1a84 MS |
666 | } |
667 | ||
f183e380 MS |
668 | const char *dplane_res2str(enum zebra_dplane_result res) |
669 | { | |
670 | const char *ret = "<Unknown>"; | |
671 | ||
672 | switch (res) { | |
673 | case ZEBRA_DPLANE_REQUEST_FAILURE: | |
674 | ret = "FAILURE"; | |
675 | break; | |
676 | case ZEBRA_DPLANE_REQUEST_QUEUED: | |
677 | ret = "QUEUED"; | |
678 | break; | |
679 | case ZEBRA_DPLANE_REQUEST_SUCCESS: | |
680 | ret = "SUCCESS"; | |
681 | break; | |
5b94ec50 | 682 | } |
f183e380 MS |
683 | |
684 | return ret; | |
685 | } | |
686 | ||
593e4eb1 MS |
687 | void dplane_ctx_set_dest(struct zebra_dplane_ctx *ctx, |
688 | const struct prefix *dest) | |
689 | { | |
690 | DPLANE_CTX_VALID(ctx); | |
691 | ||
692 | prefix_copy(&(ctx->u.rinfo.zd_dest), dest); | |
693 | } | |
694 | ||
25779064 | 695 | const struct prefix *dplane_ctx_get_dest(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
696 | { |
697 | DPLANE_CTX_VALID(ctx); | |
698 | ||
0f461727 | 699 | return &(ctx->u.rinfo.zd_dest); |
7cdb1a84 MS |
700 | } |
701 | ||
593e4eb1 MS |
702 | void dplane_ctx_set_src(struct zebra_dplane_ctx *ctx, const struct prefix *src) |
703 | { | |
704 | DPLANE_CTX_VALID(ctx); | |
705 | ||
706 | if (src) | |
707 | prefix_copy(&(ctx->u.rinfo.zd_src), src); | |
708 | else | |
709 | memset(&(ctx->u.rinfo.zd_src), 0, sizeof(struct prefix)); | |
710 | } | |
711 | ||
5709131c | 712 | /* Source prefix is a little special - return NULL for "no src prefix" */ |
25779064 | 713 | const struct prefix *dplane_ctx_get_src(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
714 | { |
715 | DPLANE_CTX_VALID(ctx); | |
716 | ||
0f461727 MS |
717 | if (ctx->u.rinfo.zd_src.prefixlen == 0 && |
718 | IN6_IS_ADDR_UNSPECIFIED(&(ctx->u.rinfo.zd_src.u.prefix6))) { | |
5709131c | 719 | return NULL; |
7cdb1a84 | 720 | } else { |
0f461727 | 721 | return &(ctx->u.rinfo.zd_src); |
7cdb1a84 MS |
722 | } |
723 | } | |
724 | ||
25779064 | 725 | bool dplane_ctx_is_update(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
726 | { |
727 | DPLANE_CTX_VALID(ctx); | |
728 | ||
5709131c | 729 | return ctx->zd_is_update; |
7cdb1a84 MS |
730 | } |
731 | ||
25779064 | 732 | uint32_t dplane_ctx_get_seq(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
733 | { |
734 | DPLANE_CTX_VALID(ctx); | |
735 | ||
5709131c | 736 | return ctx->zd_seq; |
7cdb1a84 MS |
737 | } |
738 | ||
25779064 | 739 | uint32_t dplane_ctx_get_old_seq(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
740 | { |
741 | DPLANE_CTX_VALID(ctx); | |
742 | ||
5709131c | 743 | return ctx->zd_old_seq; |
7cdb1a84 MS |
744 | } |
745 | ||
593e4eb1 MS |
746 | void dplane_ctx_set_vrf(struct zebra_dplane_ctx *ctx, vrf_id_t vrf) |
747 | { | |
748 | DPLANE_CTX_VALID(ctx); | |
749 | ||
750 | ctx->zd_vrf_id = vrf; | |
751 | } | |
752 | ||
25779064 | 753 | vrf_id_t dplane_ctx_get_vrf(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
754 | { |
755 | DPLANE_CTX_VALID(ctx); | |
756 | ||
5709131c | 757 | return ctx->zd_vrf_id; |
7cdb1a84 MS |
758 | } |
759 | ||
0024a559 MS |
760 | bool dplane_ctx_is_from_notif(const struct zebra_dplane_ctx *ctx) |
761 | { | |
762 | DPLANE_CTX_VALID(ctx); | |
763 | ||
764 | return (ctx->zd_notif_provider != 0); | |
765 | } | |
766 | ||
767 | uint32_t dplane_ctx_get_notif_provider(const struct zebra_dplane_ctx *ctx) | |
768 | { | |
769 | DPLANE_CTX_VALID(ctx); | |
770 | ||
771 | return ctx->zd_notif_provider; | |
772 | } | |
773 | ||
9651af61 MS |
774 | void dplane_ctx_set_notif_provider(struct zebra_dplane_ctx *ctx, |
775 | uint32_t id) | |
776 | { | |
777 | DPLANE_CTX_VALID(ctx); | |
778 | ||
779 | ctx->zd_notif_provider = id; | |
780 | } | |
7c7ef4a8 MS |
781 | const char *dplane_ctx_get_ifname(const struct zebra_dplane_ctx *ctx) |
782 | { | |
783 | DPLANE_CTX_VALID(ctx); | |
784 | ||
785 | return ctx->zd_ifname; | |
786 | } | |
787 | ||
788 | ifindex_t dplane_ctx_get_ifindex(const struct zebra_dplane_ctx *ctx) | |
789 | { | |
790 | DPLANE_CTX_VALID(ctx); | |
791 | ||
792 | return ctx->zd_ifindex; | |
793 | } | |
9651af61 | 794 | |
593e4eb1 MS |
795 | void dplane_ctx_set_type(struct zebra_dplane_ctx *ctx, int type) |
796 | { | |
797 | DPLANE_CTX_VALID(ctx); | |
798 | ||
799 | ctx->u.rinfo.zd_type = type; | |
800 | } | |
801 | ||
25779064 | 802 | int dplane_ctx_get_type(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
803 | { |
804 | DPLANE_CTX_VALID(ctx); | |
805 | ||
0f461727 | 806 | return ctx->u.rinfo.zd_type; |
7cdb1a84 MS |
807 | } |
808 | ||
25779064 | 809 | int dplane_ctx_get_old_type(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
810 | { |
811 | DPLANE_CTX_VALID(ctx); | |
812 | ||
0f461727 | 813 | return ctx->u.rinfo.zd_old_type; |
7cdb1a84 MS |
814 | } |
815 | ||
593e4eb1 MS |
816 | void dplane_ctx_set_afi(struct zebra_dplane_ctx *ctx, afi_t afi) |
817 | { | |
818 | DPLANE_CTX_VALID(ctx); | |
819 | ||
820 | ctx->u.rinfo.zd_afi = afi; | |
821 | } | |
822 | ||
25779064 | 823 | afi_t dplane_ctx_get_afi(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
824 | { |
825 | DPLANE_CTX_VALID(ctx); | |
826 | ||
0f461727 | 827 | return ctx->u.rinfo.zd_afi; |
7cdb1a84 MS |
828 | } |
829 | ||
593e4eb1 MS |
830 | void dplane_ctx_set_safi(struct zebra_dplane_ctx *ctx, safi_t safi) |
831 | { | |
832 | DPLANE_CTX_VALID(ctx); | |
833 | ||
834 | ctx->u.rinfo.zd_safi = safi; | |
835 | } | |
836 | ||
25779064 | 837 | safi_t dplane_ctx_get_safi(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
838 | { |
839 | DPLANE_CTX_VALID(ctx); | |
840 | ||
0f461727 | 841 | return ctx->u.rinfo.zd_safi; |
7cdb1a84 MS |
842 | } |
843 | ||
593e4eb1 MS |
844 | void dplane_ctx_set_table(struct zebra_dplane_ctx *ctx, uint32_t table) |
845 | { | |
846 | DPLANE_CTX_VALID(ctx); | |
847 | ||
848 | ctx->zd_table_id = table; | |
849 | } | |
850 | ||
25779064 | 851 | uint32_t dplane_ctx_get_table(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
852 | { |
853 | DPLANE_CTX_VALID(ctx); | |
854 | ||
5709131c | 855 | return ctx->zd_table_id; |
7cdb1a84 MS |
856 | } |
857 | ||
25779064 | 858 | route_tag_t dplane_ctx_get_tag(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
859 | { |
860 | DPLANE_CTX_VALID(ctx); | |
861 | ||
0f461727 | 862 | return ctx->u.rinfo.zd_tag; |
7cdb1a84 MS |
863 | } |
864 | ||
6a91ae98 MS |
865 | void dplane_ctx_set_tag(struct zebra_dplane_ctx *ctx, route_tag_t tag) |
866 | { | |
867 | DPLANE_CTX_VALID(ctx); | |
868 | ||
869 | ctx->u.rinfo.zd_tag = tag; | |
870 | } | |
871 | ||
25779064 | 872 | route_tag_t dplane_ctx_get_old_tag(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
873 | { |
874 | DPLANE_CTX_VALID(ctx); | |
875 | ||
0f461727 | 876 | return ctx->u.rinfo.zd_old_tag; |
7cdb1a84 MS |
877 | } |
878 | ||
25779064 | 879 | uint16_t dplane_ctx_get_instance(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
880 | { |
881 | DPLANE_CTX_VALID(ctx); | |
882 | ||
0f461727 | 883 | return ctx->u.rinfo.zd_instance; |
7cdb1a84 MS |
884 | } |
885 | ||
6a91ae98 MS |
886 | void dplane_ctx_set_instance(struct zebra_dplane_ctx *ctx, uint16_t instance) |
887 | { | |
888 | DPLANE_CTX_VALID(ctx); | |
889 | ||
890 | ctx->u.rinfo.zd_instance = instance; | |
891 | } | |
892 | ||
25779064 | 893 | uint16_t dplane_ctx_get_old_instance(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
894 | { |
895 | DPLANE_CTX_VALID(ctx); | |
896 | ||
0f461727 | 897 | return ctx->u.rinfo.zd_old_instance; |
7cdb1a84 MS |
898 | } |
899 | ||
25779064 | 900 | uint32_t dplane_ctx_get_metric(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
901 | { |
902 | DPLANE_CTX_VALID(ctx); | |
903 | ||
0f461727 | 904 | return ctx->u.rinfo.zd_metric; |
7cdb1a84 MS |
905 | } |
906 | ||
25779064 | 907 | uint32_t dplane_ctx_get_old_metric(const struct zebra_dplane_ctx *ctx) |
01ce7cba MS |
908 | { |
909 | DPLANE_CTX_VALID(ctx); | |
910 | ||
0f461727 | 911 | return ctx->u.rinfo.zd_old_metric; |
01ce7cba MS |
912 | } |
913 | ||
25779064 | 914 | uint32_t dplane_ctx_get_mtu(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
915 | { |
916 | DPLANE_CTX_VALID(ctx); | |
917 | ||
0f461727 | 918 | return ctx->u.rinfo.zd_mtu; |
7cdb1a84 MS |
919 | } |
920 | ||
25779064 | 921 | uint32_t dplane_ctx_get_nh_mtu(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
922 | { |
923 | DPLANE_CTX_VALID(ctx); | |
924 | ||
0f461727 | 925 | return ctx->u.rinfo.zd_nexthop_mtu; |
7cdb1a84 MS |
926 | } |
927 | ||
25779064 | 928 | uint8_t dplane_ctx_get_distance(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
929 | { |
930 | DPLANE_CTX_VALID(ctx); | |
931 | ||
0f461727 | 932 | return ctx->u.rinfo.zd_distance; |
7cdb1a84 MS |
933 | } |
934 | ||
6a91ae98 MS |
935 | void dplane_ctx_set_distance(struct zebra_dplane_ctx *ctx, uint8_t distance) |
936 | { | |
937 | DPLANE_CTX_VALID(ctx); | |
938 | ||
939 | ctx->u.rinfo.zd_distance = distance; | |
940 | } | |
941 | ||
25779064 | 942 | uint8_t dplane_ctx_get_old_distance(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
943 | { |
944 | DPLANE_CTX_VALID(ctx); | |
945 | ||
0f461727 | 946 | return ctx->u.rinfo.zd_old_distance; |
7cdb1a84 MS |
947 | } |
948 | ||
593e4eb1 MS |
949 | void dplane_ctx_set_nexthops(struct zebra_dplane_ctx *ctx, struct nexthop *nh) |
950 | { | |
951 | DPLANE_CTX_VALID(ctx); | |
952 | ||
953 | if (ctx->u.rinfo.zd_ng.nexthop) { | |
954 | nexthops_free(ctx->u.rinfo.zd_ng.nexthop); | |
955 | ctx->u.rinfo.zd_ng.nexthop = NULL; | |
956 | } | |
957 | copy_nexthops(&(ctx->u.rinfo.zd_ng.nexthop), nh, NULL); | |
958 | } | |
959 | ||
25779064 MS |
960 | const struct nexthop_group *dplane_ctx_get_ng( |
961 | const struct zebra_dplane_ctx *ctx) | |
7cdb1a84 MS |
962 | { |
963 | DPLANE_CTX_VALID(ctx); | |
964 | ||
0f461727 | 965 | return &(ctx->u.rinfo.zd_ng); |
7cdb1a84 MS |
966 | } |
967 | ||
25779064 MS |
968 | const struct nexthop_group *dplane_ctx_get_old_ng( |
969 | const struct zebra_dplane_ctx *ctx) | |
01ce7cba MS |
970 | { |
971 | DPLANE_CTX_VALID(ctx); | |
972 | ||
0f461727 | 973 | return &(ctx->u.rinfo.zd_old_ng); |
01ce7cba MS |
974 | } |
975 | ||
25779064 MS |
976 | const struct zebra_dplane_info *dplane_ctx_get_ns( |
977 | const struct zebra_dplane_ctx *ctx) | |
7cdb1a84 MS |
978 | { |
979 | DPLANE_CTX_VALID(ctx); | |
980 | ||
5709131c | 981 | return &(ctx->zd_ns_info); |
7cdb1a84 MS |
982 | } |
983 | ||
0f461727 MS |
984 | /* Accessors for LSP information */ |
985 | ||
986 | mpls_label_t dplane_ctx_get_in_label(const struct zebra_dplane_ctx *ctx) | |
987 | { | |
988 | DPLANE_CTX_VALID(ctx); | |
989 | ||
990 | return ctx->u.lsp.ile.in_label; | |
991 | } | |
992 | ||
3ab54059 MS |
993 | void dplane_ctx_set_in_label(struct zebra_dplane_ctx *ctx, mpls_label_t label) |
994 | { | |
995 | DPLANE_CTX_VALID(ctx); | |
996 | ||
997 | ctx->u.lsp.ile.in_label = label; | |
998 | } | |
999 | ||
0f461727 MS |
1000 | uint8_t dplane_ctx_get_addr_family(const struct zebra_dplane_ctx *ctx) |
1001 | { | |
1002 | DPLANE_CTX_VALID(ctx); | |
1003 | ||
1004 | return ctx->u.lsp.addr_family; | |
1005 | } | |
1006 | ||
3ab54059 MS |
1007 | void dplane_ctx_set_addr_family(struct zebra_dplane_ctx *ctx, |
1008 | uint8_t family) | |
1009 | { | |
1010 | DPLANE_CTX_VALID(ctx); | |
1011 | ||
1012 | ctx->u.lsp.addr_family = family; | |
1013 | } | |
1014 | ||
0f461727 MS |
1015 | uint32_t dplane_ctx_get_lsp_flags(const struct zebra_dplane_ctx *ctx) |
1016 | { | |
1017 | DPLANE_CTX_VALID(ctx); | |
1018 | ||
1019 | return ctx->u.lsp.flags; | |
1020 | } | |
1021 | ||
3ab54059 MS |
1022 | void dplane_ctx_set_lsp_flags(struct zebra_dplane_ctx *ctx, |
1023 | uint32_t flags) | |
1024 | { | |
1025 | DPLANE_CTX_VALID(ctx); | |
1026 | ||
1027 | ctx->u.lsp.flags = flags; | |
1028 | } | |
1029 | ||
81793ac1 | 1030 | const zebra_nhlfe_t *dplane_ctx_get_nhlfe(const struct zebra_dplane_ctx *ctx) |
0f461727 MS |
1031 | { |
1032 | DPLANE_CTX_VALID(ctx); | |
1033 | ||
1034 | return ctx->u.lsp.nhlfe_list; | |
1035 | } | |
1036 | ||
3ab54059 MS |
1037 | zebra_nhlfe_t *dplane_ctx_add_nhlfe(struct zebra_dplane_ctx *ctx, |
1038 | enum lsp_types_t lsp_type, | |
1039 | enum nexthop_types_t nh_type, | |
1040 | union g_addr *gate, | |
1041 | ifindex_t ifindex, | |
1042 | mpls_label_t out_label) | |
1043 | { | |
1044 | zebra_nhlfe_t *nhlfe; | |
1045 | ||
1046 | DPLANE_CTX_VALID(ctx); | |
1047 | ||
1048 | nhlfe = zebra_mpls_lsp_add_nhlfe(&(ctx->u.lsp), | |
1049 | lsp_type, nh_type, gate, | |
1050 | ifindex, out_label); | |
1051 | ||
1052 | return nhlfe; | |
1053 | } | |
1054 | ||
81793ac1 MS |
1055 | const zebra_nhlfe_t * |
1056 | dplane_ctx_get_best_nhlfe(const struct zebra_dplane_ctx *ctx) | |
0f461727 MS |
1057 | { |
1058 | DPLANE_CTX_VALID(ctx); | |
1059 | ||
1060 | return ctx->u.lsp.best_nhlfe; | |
1061 | } | |
1062 | ||
3ab54059 MS |
1063 | const zebra_nhlfe_t * |
1064 | dplane_ctx_set_best_nhlfe(struct zebra_dplane_ctx *ctx, | |
1065 | zebra_nhlfe_t *nhlfe) | |
1066 | { | |
1067 | DPLANE_CTX_VALID(ctx); | |
1068 | ||
1069 | ctx->u.lsp.best_nhlfe = nhlfe; | |
1070 | return ctx->u.lsp.best_nhlfe; | |
1071 | } | |
1072 | ||
0f461727 MS |
1073 | uint32_t dplane_ctx_get_lsp_num_ecmp(const struct zebra_dplane_ctx *ctx) |
1074 | { | |
1075 | DPLANE_CTX_VALID(ctx); | |
1076 | ||
1077 | return ctx->u.lsp.num_ecmp; | |
1078 | } | |
1079 | ||
d613b8e1 MS |
1080 | mpls_label_t dplane_ctx_get_pw_local_label(const struct zebra_dplane_ctx *ctx) |
1081 | { | |
1082 | DPLANE_CTX_VALID(ctx); | |
1083 | ||
1084 | return ctx->u.pw.local_label; | |
1085 | } | |
1086 | ||
1087 | mpls_label_t dplane_ctx_get_pw_remote_label(const struct zebra_dplane_ctx *ctx) | |
1088 | { | |
1089 | DPLANE_CTX_VALID(ctx); | |
1090 | ||
1091 | return ctx->u.pw.remote_label; | |
1092 | } | |
1093 | ||
1094 | int dplane_ctx_get_pw_type(const struct zebra_dplane_ctx *ctx) | |
1095 | { | |
1096 | DPLANE_CTX_VALID(ctx); | |
1097 | ||
1098 | return ctx->u.pw.type; | |
1099 | } | |
1100 | ||
1101 | int dplane_ctx_get_pw_af(const struct zebra_dplane_ctx *ctx) | |
1102 | { | |
1103 | DPLANE_CTX_VALID(ctx); | |
1104 | ||
1105 | return ctx->u.pw.af; | |
1106 | } | |
1107 | ||
1108 | uint32_t dplane_ctx_get_pw_flags(const struct zebra_dplane_ctx *ctx) | |
1109 | { | |
1110 | DPLANE_CTX_VALID(ctx); | |
1111 | ||
1112 | return ctx->u.pw.flags; | |
1113 | } | |
1114 | ||
1115 | int dplane_ctx_get_pw_status(const struct zebra_dplane_ctx *ctx) | |
1116 | { | |
1117 | DPLANE_CTX_VALID(ctx); | |
1118 | ||
1119 | return ctx->u.pw.status; | |
1120 | } | |
1121 | ||
16d69787 | 1122 | const union g_addr *dplane_ctx_get_pw_dest( |
d613b8e1 MS |
1123 | const struct zebra_dplane_ctx *ctx) |
1124 | { | |
1125 | DPLANE_CTX_VALID(ctx); | |
1126 | ||
16d69787 | 1127 | return &(ctx->u.pw.dest); |
d613b8e1 MS |
1128 | } |
1129 | ||
1130 | const union pw_protocol_fields *dplane_ctx_get_pw_proto( | |
1131 | const struct zebra_dplane_ctx *ctx) | |
1132 | { | |
1133 | DPLANE_CTX_VALID(ctx); | |
1134 | ||
1135 | return &(ctx->u.pw.fields); | |
1136 | } | |
1137 | ||
09cd307c MS |
1138 | const struct nexthop_group * |
1139 | dplane_ctx_get_pw_nhg(const struct zebra_dplane_ctx *ctx) | |
1140 | { | |
1141 | DPLANE_CTX_VALID(ctx); | |
1142 | ||
1143 | return &(ctx->u.pw.nhg); | |
1144 | } | |
1145 | ||
a4a4802a | 1146 | /* Accessors for interface information */ |
a4a4802a MS |
1147 | uint32_t dplane_ctx_get_intf_metric(const struct zebra_dplane_ctx *ctx) |
1148 | { | |
1149 | DPLANE_CTX_VALID(ctx); | |
1150 | ||
1151 | return ctx->u.intf.metric; | |
1152 | } | |
1153 | ||
1154 | /* Is interface addr p2p? */ | |
1155 | bool dplane_ctx_intf_is_connected(const struct zebra_dplane_ctx *ctx) | |
1156 | { | |
1157 | DPLANE_CTX_VALID(ctx); | |
1158 | ||
1159 | return (ctx->u.intf.flags & DPLANE_INTF_CONNECTED); | |
1160 | } | |
1161 | ||
1162 | bool dplane_ctx_intf_is_secondary(const struct zebra_dplane_ctx *ctx) | |
1163 | { | |
1164 | DPLANE_CTX_VALID(ctx); | |
1165 | ||
1166 | return (ctx->u.intf.flags & DPLANE_INTF_SECONDARY); | |
1167 | } | |
1168 | ||
64168803 MS |
1169 | bool dplane_ctx_intf_is_broadcast(const struct zebra_dplane_ctx *ctx) |
1170 | { | |
1171 | DPLANE_CTX_VALID(ctx); | |
1172 | ||
1173 | return (ctx->u.intf.flags & DPLANE_INTF_BROADCAST); | |
1174 | } | |
1175 | ||
a4a4802a MS |
1176 | const struct prefix *dplane_ctx_get_intf_addr( |
1177 | const struct zebra_dplane_ctx *ctx) | |
1178 | { | |
1179 | DPLANE_CTX_VALID(ctx); | |
1180 | ||
1181 | return &(ctx->u.intf.prefix); | |
1182 | } | |
1183 | ||
1184 | bool dplane_ctx_intf_has_dest(const struct zebra_dplane_ctx *ctx) | |
1185 | { | |
1186 | DPLANE_CTX_VALID(ctx); | |
1187 | ||
1188 | return (ctx->u.intf.flags & DPLANE_INTF_HAS_DEST); | |
1189 | } | |
1190 | ||
1191 | const struct prefix *dplane_ctx_get_intf_dest( | |
1192 | const struct zebra_dplane_ctx *ctx) | |
1193 | { | |
1194 | DPLANE_CTX_VALID(ctx); | |
1195 | ||
1196 | if (ctx->u.intf.flags & DPLANE_INTF_HAS_DEST) | |
1197 | return &(ctx->u.intf.dest_prefix); | |
1198 | else | |
1199 | return NULL; | |
1200 | } | |
1201 | ||
1202 | bool dplane_ctx_intf_has_label(const struct zebra_dplane_ctx *ctx) | |
1203 | { | |
1204 | DPLANE_CTX_VALID(ctx); | |
1205 | ||
1206 | return (ctx->u.intf.flags & DPLANE_INTF_HAS_LABEL); | |
1207 | } | |
1208 | ||
1209 | const char *dplane_ctx_get_intf_label(const struct zebra_dplane_ctx *ctx) | |
1210 | { | |
1211 | DPLANE_CTX_VALID(ctx); | |
1212 | ||
1213 | return ctx->u.intf.label; | |
1214 | } | |
1215 | ||
7597ac7b MS |
1216 | /* Accessors for MAC information */ |
1217 | vlanid_t dplane_ctx_mac_get_vlan(const struct zebra_dplane_ctx *ctx) | |
1218 | { | |
1219 | DPLANE_CTX_VALID(ctx); | |
1220 | return ctx->u.macinfo.vid; | |
1221 | } | |
1222 | ||
1223 | bool dplane_ctx_mac_is_sticky(const struct zebra_dplane_ctx *ctx) | |
1224 | { | |
1225 | DPLANE_CTX_VALID(ctx); | |
1226 | return ctx->u.macinfo.is_sticky; | |
1227 | } | |
1228 | ||
1229 | const struct ethaddr *dplane_ctx_mac_get_addr( | |
1230 | const struct zebra_dplane_ctx *ctx) | |
1231 | { | |
1232 | DPLANE_CTX_VALID(ctx); | |
1233 | return &(ctx->u.macinfo.mac); | |
1234 | } | |
1235 | ||
1236 | const struct in_addr *dplane_ctx_mac_get_vtep_ip( | |
1237 | const struct zebra_dplane_ctx *ctx) | |
1238 | { | |
1239 | DPLANE_CTX_VALID(ctx); | |
1240 | return &(ctx->u.macinfo.vtep_ip); | |
1241 | } | |
1242 | ||
7cdb1a84 MS |
1243 | /* |
1244 | * End of dplane context accessors | |
1245 | */ | |
1246 | ||
c831033f | 1247 | |
91f16812 MS |
1248 | /* |
1249 | * Retrieve the limit on the number of pending, unprocessed updates. | |
1250 | */ | |
1251 | uint32_t dplane_get_in_queue_limit(void) | |
1252 | { | |
1253 | return atomic_load_explicit(&zdplane_info.dg_max_queued_updates, | |
1254 | memory_order_relaxed); | |
1255 | } | |
1256 | ||
1257 | /* | |
1258 | * Configure limit on the number of pending, queued updates. | |
1259 | */ | |
1260 | void dplane_set_in_queue_limit(uint32_t limit, bool set) | |
1261 | { | |
1262 | /* Reset to default on 'unset' */ | |
1263 | if (!set) | |
1264 | limit = DPLANE_DEFAULT_MAX_QUEUED; | |
1265 | ||
1266 | atomic_store_explicit(&zdplane_info.dg_max_queued_updates, limit, | |
1267 | memory_order_relaxed); | |
1268 | } | |
1269 | ||
1270 | /* | |
1271 | * Retrieve the current queue depth of incoming, unprocessed updates | |
1272 | */ | |
1273 | uint32_t dplane_get_in_queue_len(void) | |
1274 | { | |
1275 | return atomic_load_explicit(&zdplane_info.dg_routes_queued, | |
1276 | memory_order_seq_cst); | |
1277 | } | |
1278 | ||
16c628de MS |
1279 | /* |
1280 | * Common dataplane context init with zebra namespace info. | |
1281 | */ | |
1282 | static int dplane_ctx_ns_init(struct zebra_dplane_ctx *ctx, | |
1283 | struct zebra_ns *zns, | |
1284 | bool is_update) | |
1285 | { | |
1286 | dplane_info_from_zns(&(ctx->zd_ns_info), zns); | |
1287 | ||
1288 | #if defined(HAVE_NETLINK) | |
1289 | /* Increment message counter after copying to context struct - may need | |
1290 | * two messages in some 'update' cases. | |
1291 | */ | |
1292 | if (is_update) | |
1293 | zns->netlink_dplane.seq += 2; | |
1294 | else | |
1295 | zns->netlink_dplane.seq++; | |
1296 | #endif /* HAVE_NETLINK */ | |
1297 | ||
1298 | return AOK; | |
1299 | } | |
1300 | ||
7cdb1a84 MS |
1301 | /* |
1302 | * Initialize a context block for a route update from zebra data structs. | |
1303 | */ | |
25779064 | 1304 | static int dplane_ctx_route_init(struct zebra_dplane_ctx *ctx, |
5709131c | 1305 | enum dplane_op_e op, |
7cdb1a84 MS |
1306 | struct route_node *rn, |
1307 | struct route_entry *re) | |
1308 | { | |
1309 | int ret = EINVAL; | |
1310 | const struct route_table *table = NULL; | |
1311 | const rib_table_info_t *info; | |
1312 | const struct prefix *p, *src_p; | |
1313 | struct zebra_ns *zns; | |
1314 | struct zebra_vrf *zvrf; | |
f183e380 | 1315 | struct nexthop *nexthop; |
7cdb1a84 | 1316 | |
5709131c | 1317 | if (!ctx || !rn || !re) |
7cdb1a84 | 1318 | goto done; |
7cdb1a84 MS |
1319 | |
1320 | ctx->zd_op = op; | |
14b0bc8e | 1321 | ctx->zd_status = ZEBRA_DPLANE_REQUEST_SUCCESS; |
7cdb1a84 | 1322 | |
0f461727 MS |
1323 | ctx->u.rinfo.zd_type = re->type; |
1324 | ctx->u.rinfo.zd_old_type = re->type; | |
7cdb1a84 MS |
1325 | |
1326 | /* Prefixes: dest, and optional source */ | |
1327 | srcdest_rnode_prefixes(rn, &p, &src_p); | |
1328 | ||
0f461727 | 1329 | prefix_copy(&(ctx->u.rinfo.zd_dest), p); |
7cdb1a84 | 1330 | |
5709131c | 1331 | if (src_p) |
0f461727 | 1332 | prefix_copy(&(ctx->u.rinfo.zd_src), src_p); |
5709131c | 1333 | else |
0f461727 | 1334 | memset(&(ctx->u.rinfo.zd_src), 0, sizeof(ctx->u.rinfo.zd_src)); |
7cdb1a84 MS |
1335 | |
1336 | ctx->zd_table_id = re->table; | |
1337 | ||
0f461727 MS |
1338 | ctx->u.rinfo.zd_metric = re->metric; |
1339 | ctx->u.rinfo.zd_old_metric = re->metric; | |
7cdb1a84 | 1340 | ctx->zd_vrf_id = re->vrf_id; |
0f461727 MS |
1341 | ctx->u.rinfo.zd_mtu = re->mtu; |
1342 | ctx->u.rinfo.zd_nexthop_mtu = re->nexthop_mtu; | |
1343 | ctx->u.rinfo.zd_instance = re->instance; | |
1344 | ctx->u.rinfo.zd_tag = re->tag; | |
1345 | ctx->u.rinfo.zd_old_tag = re->tag; | |
1346 | ctx->u.rinfo.zd_distance = re->distance; | |
7cdb1a84 MS |
1347 | |
1348 | table = srcdest_rnode_table(rn); | |
1349 | info = table->info; | |
1350 | ||
0f461727 MS |
1351 | ctx->u.rinfo.zd_afi = info->afi; |
1352 | ctx->u.rinfo.zd_safi = info->safi; | |
7cdb1a84 | 1353 | |
7cdb1a84 | 1354 | /* Copy nexthops; recursive info is included too */ |
0f461727 | 1355 | copy_nexthops(&(ctx->u.rinfo.zd_ng.nexthop), re->ng.nexthop, NULL); |
7cdb1a84 | 1356 | |
14b0bc8e | 1357 | /* Ensure that the dplane's nexthops flags are clear. */ |
0f461727 | 1358 | for (ALL_NEXTHOPS(ctx->u.rinfo.zd_ng, nexthop)) |
f183e380 | 1359 | UNSET_FLAG(nexthop->flags, NEXTHOP_FLAG_FIB); |
f183e380 | 1360 | |
cf363e1b MS |
1361 | /* Don't need some info when capturing a system notification */ |
1362 | if (op == DPLANE_OP_SYS_ROUTE_ADD || | |
1363 | op == DPLANE_OP_SYS_ROUTE_DELETE) { | |
1364 | ret = AOK; | |
1365 | goto done; | |
1366 | } | |
1367 | ||
1368 | /* Extract ns info - can't use pointers to 'core' structs */ | |
1369 | zvrf = vrf_info_lookup(re->vrf_id); | |
1370 | zns = zvrf->zns; | |
1371 | dplane_ctx_ns_init(ctx, zns, (op == DPLANE_OP_ROUTE_UPDATE)); | |
1372 | ||
7cdb1a84 MS |
1373 | /* Trying out the sequence number idea, so we can try to detect |
1374 | * when a result is stale. | |
1375 | */ | |
1485bbe7 | 1376 | re->dplane_sequence = zebra_router_get_next_sequence(); |
7cdb1a84 MS |
1377 | ctx->zd_seq = re->dplane_sequence; |
1378 | ||
1379 | ret = AOK; | |
1380 | ||
1381 | done: | |
1382 | return ret; | |
1383 | } | |
1384 | ||
16c628de MS |
1385 | /* |
1386 | * Capture information for an LSP update in a dplane context. | |
1387 | */ | |
1388 | static int dplane_ctx_lsp_init(struct zebra_dplane_ctx *ctx, | |
1389 | enum dplane_op_e op, | |
1390 | zebra_lsp_t *lsp) | |
1391 | { | |
1392 | int ret = AOK; | |
1393 | zebra_nhlfe_t *nhlfe, *new_nhlfe; | |
1394 | ||
1395 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) | |
1396 | zlog_debug("init dplane ctx %s: in-label %u ecmp# %d", | |
1397 | dplane_op2str(op), lsp->ile.in_label, | |
1398 | lsp->num_ecmp); | |
1399 | ||
1400 | ctx->zd_op = op; | |
1401 | ctx->zd_status = ZEBRA_DPLANE_REQUEST_SUCCESS; | |
1402 | ||
1403 | /* Capture namespace info */ | |
1404 | dplane_ctx_ns_init(ctx, zebra_ns_lookup(NS_DEFAULT), | |
1405 | (op == DPLANE_OP_LSP_UPDATE)); | |
1406 | ||
1407 | memset(&ctx->u.lsp, 0, sizeof(ctx->u.lsp)); | |
1408 | ||
1409 | ctx->u.lsp.ile = lsp->ile; | |
1410 | ctx->u.lsp.addr_family = lsp->addr_family; | |
1411 | ctx->u.lsp.num_ecmp = lsp->num_ecmp; | |
1412 | ctx->u.lsp.flags = lsp->flags; | |
1413 | ||
1414 | /* Copy source LSP's nhlfes, and capture 'best' nhlfe */ | |
1415 | for (nhlfe = lsp->nhlfe_list; nhlfe; nhlfe = nhlfe->next) { | |
1416 | /* Not sure if this is meaningful... */ | |
1417 | if (nhlfe->nexthop == NULL) | |
1418 | continue; | |
1419 | ||
1420 | new_nhlfe = | |
1421 | zebra_mpls_lsp_add_nhlfe( | |
1422 | &(ctx->u.lsp), | |
1423 | nhlfe->type, | |
1424 | nhlfe->nexthop->type, | |
1425 | &(nhlfe->nexthop->gate), | |
1426 | nhlfe->nexthop->ifindex, | |
1427 | nhlfe->nexthop->nh_label->label[0]); | |
1428 | ||
1429 | if (new_nhlfe == NULL || new_nhlfe->nexthop == NULL) { | |
1430 | ret = ENOMEM; | |
1431 | break; | |
1432 | } | |
1433 | ||
1434 | /* Need to copy flags too */ | |
1435 | new_nhlfe->flags = nhlfe->flags; | |
1436 | new_nhlfe->nexthop->flags = nhlfe->nexthop->flags; | |
1437 | ||
1438 | if (nhlfe == lsp->best_nhlfe) | |
1439 | ctx->u.lsp.best_nhlfe = new_nhlfe; | |
1440 | } | |
1441 | ||
1442 | /* On error the ctx will be cleaned-up, so we don't need to | |
1443 | * deal with any allocated nhlfe or nexthop structs here. | |
1444 | */ | |
1445 | ||
1446 | return ret; | |
1447 | } | |
1448 | ||
97d8d05a MS |
1449 | /* |
1450 | * Capture information for an LSP update in a dplane context. | |
1451 | */ | |
1452 | static int dplane_ctx_pw_init(struct zebra_dplane_ctx *ctx, | |
1453 | enum dplane_op_e op, | |
1454 | struct zebra_pw *pw) | |
1455 | { | |
09cd307c MS |
1456 | struct prefix p; |
1457 | afi_t afi; | |
1458 | struct route_table *table; | |
1459 | struct route_node *rn; | |
1460 | struct route_entry *re; | |
1461 | ||
97d8d05a MS |
1462 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) |
1463 | zlog_debug("init dplane ctx %s: pw '%s', loc %u, rem %u", | |
1464 | dplane_op2str(op), pw->ifname, pw->local_label, | |
1465 | pw->remote_label); | |
1466 | ||
1467 | ctx->zd_op = op; | |
1468 | ctx->zd_status = ZEBRA_DPLANE_REQUEST_SUCCESS; | |
1469 | ||
1470 | /* Capture namespace info: no netlink support as of 12/18, | |
1471 | * but just in case... | |
1472 | */ | |
1473 | dplane_ctx_ns_init(ctx, zebra_ns_lookup(NS_DEFAULT), false); | |
1474 | ||
1475 | memset(&ctx->u.pw, 0, sizeof(ctx->u.pw)); | |
1476 | ||
1477 | /* This name appears to be c-string, so we use string copy. */ | |
7c7ef4a8 | 1478 | strlcpy(ctx->zd_ifname, pw->ifname, sizeof(ctx->zd_ifname)); |
16d69787 | 1479 | |
9bd9717b | 1480 | ctx->zd_vrf_id = pw->vrf_id; |
7c7ef4a8 | 1481 | ctx->zd_ifindex = pw->ifindex; |
97d8d05a MS |
1482 | ctx->u.pw.type = pw->type; |
1483 | ctx->u.pw.af = pw->af; | |
1484 | ctx->u.pw.local_label = pw->local_label; | |
1485 | ctx->u.pw.remote_label = pw->remote_label; | |
1486 | ctx->u.pw.flags = pw->flags; | |
1487 | ||
16d69787 | 1488 | ctx->u.pw.dest = pw->nexthop; |
97d8d05a MS |
1489 | |
1490 | ctx->u.pw.fields = pw->data; | |
1491 | ||
09cd307c MS |
1492 | /* Capture nexthop info for the pw destination. We need to look |
1493 | * up and use zebra datastructs, but we're running in the zebra | |
1494 | * pthread here so that should be ok. | |
1495 | */ | |
1496 | memcpy(&p.u, &pw->nexthop, sizeof(pw->nexthop)); | |
1497 | p.family = pw->af; | |
1498 | p.prefixlen = ((pw->af == AF_INET) ? | |
1499 | IPV4_MAX_PREFIXLEN : IPV6_MAX_PREFIXLEN); | |
1500 | ||
1501 | afi = (pw->af == AF_INET) ? AFI_IP : AFI_IP6; | |
1502 | table = zebra_vrf_table(afi, SAFI_UNICAST, pw->vrf_id); | |
1503 | if (table) { | |
1504 | rn = route_node_match(table, &p); | |
1505 | if (rn) { | |
1506 | RNODE_FOREACH_RE(rn, re) { | |
1507 | if (CHECK_FLAG(re->flags, ZEBRA_FLAG_SELECTED)) | |
1508 | break; | |
1509 | } | |
1510 | ||
1511 | if (re) | |
1512 | copy_nexthops(&(ctx->u.pw.nhg.nexthop), | |
1513 | re->ng.nexthop, NULL); | |
1514 | ||
1515 | route_unlock_node(rn); | |
1516 | } | |
1517 | } | |
1518 | ||
9f2d0354 | 1519 | return AOK; |
97d8d05a MS |
1520 | } |
1521 | ||
7cdb1a84 | 1522 | /* |
3fe4ccc4 | 1523 | * Enqueue a new update, |
16c628de | 1524 | * and ensure an event is active for the dataplane pthread. |
7cdb1a84 | 1525 | */ |
3fe4ccc4 | 1526 | static int dplane_update_enqueue(struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
1527 | { |
1528 | int ret = EINVAL; | |
91f16812 | 1529 | uint32_t high, curr; |
7cdb1a84 | 1530 | |
16c628de | 1531 | /* Enqueue for processing by the dataplane pthread */ |
7cdb1a84 MS |
1532 | DPLANE_LOCK(); |
1533 | { | |
3fe4ccc4 | 1534 | TAILQ_INSERT_TAIL(&zdplane_info.dg_update_ctx_q, ctx, |
25779064 | 1535 | zd_q_entries); |
7cdb1a84 MS |
1536 | } |
1537 | DPLANE_UNLOCK(); | |
1538 | ||
e07e9549 MS |
1539 | curr = atomic_add_fetch_explicit( |
1540 | #ifdef __clang__ | |
1541 | /* TODO -- issue with the clang atomic/intrinsics currently; | |
1542 | * casting away the 'Atomic'-ness of the variable works. | |
1543 | */ | |
1544 | (uint32_t *)&(zdplane_info.dg_routes_queued), | |
1545 | #else | |
1546 | &(zdplane_info.dg_routes_queued), | |
1547 | #endif | |
1548 | 1, memory_order_seq_cst); | |
91f16812 MS |
1549 | |
1550 | /* Maybe update high-water counter also */ | |
1551 | high = atomic_load_explicit(&zdplane_info.dg_routes_queued_max, | |
1552 | memory_order_seq_cst); | |
1553 | while (high < curr) { | |
1554 | if (atomic_compare_exchange_weak_explicit( | |
1555 | &zdplane_info.dg_routes_queued_max, | |
1556 | &high, curr, | |
1557 | memory_order_seq_cst, | |
1558 | memory_order_seq_cst)) | |
1559 | break; | |
1560 | } | |
1561 | ||
7cdb1a84 | 1562 | /* Ensure that an event for the dataplane thread is active */ |
c831033f | 1563 | ret = dplane_provider_work_ready(); |
7cdb1a84 | 1564 | |
5709131c | 1565 | return ret; |
7cdb1a84 MS |
1566 | } |
1567 | ||
7cdb1a84 MS |
1568 | /* |
1569 | * Utility that prepares a route update and enqueues it for processing | |
1570 | */ | |
655d681a MS |
1571 | static enum zebra_dplane_result |
1572 | dplane_route_update_internal(struct route_node *rn, | |
1573 | struct route_entry *re, | |
1574 | struct route_entry *old_re, | |
5709131c | 1575 | enum dplane_op_e op) |
7cdb1a84 | 1576 | { |
655d681a | 1577 | enum zebra_dplane_result result = ZEBRA_DPLANE_REQUEST_FAILURE; |
7cdb1a84 | 1578 | int ret = EINVAL; |
25779064 | 1579 | struct zebra_dplane_ctx *ctx = NULL; |
7cdb1a84 MS |
1580 | |
1581 | /* Obtain context block */ | |
1582 | ctx = dplane_ctx_alloc(); | |
7cdb1a84 MS |
1583 | |
1584 | /* Init context with info from zebra data structs */ | |
1585 | ret = dplane_ctx_route_init(ctx, op, rn, re); | |
1586 | if (ret == AOK) { | |
1587 | /* Capture some extra info for update case | |
1588 | * where there's a different 'old' route. | |
1589 | */ | |
b8e0423d MS |
1590 | if ((op == DPLANE_OP_ROUTE_UPDATE) && |
1591 | old_re && (old_re != re)) { | |
7cdb1a84 MS |
1592 | ctx->zd_is_update = true; |
1593 | ||
1485bbe7 DS |
1594 | old_re->dplane_sequence = |
1595 | zebra_router_get_next_sequence(); | |
7cdb1a84 MS |
1596 | ctx->zd_old_seq = old_re->dplane_sequence; |
1597 | ||
0f461727 MS |
1598 | ctx->u.rinfo.zd_old_tag = old_re->tag; |
1599 | ctx->u.rinfo.zd_old_type = old_re->type; | |
1600 | ctx->u.rinfo.zd_old_instance = old_re->instance; | |
1601 | ctx->u.rinfo.zd_old_distance = old_re->distance; | |
1602 | ctx->u.rinfo.zd_old_metric = old_re->metric; | |
01ce7cba MS |
1603 | |
1604 | #ifndef HAVE_NETLINK | |
f183e380 MS |
1605 | /* For bsd, capture previous re's nexthops too, sigh. |
1606 | * We'll need these to do per-nexthop deletes. | |
1607 | */ | |
0f461727 | 1608 | copy_nexthops(&(ctx->u.rinfo.zd_old_ng.nexthop), |
01ce7cba MS |
1609 | old_re->ng.nexthop, NULL); |
1610 | #endif /* !HAVE_NETLINK */ | |
7cdb1a84 MS |
1611 | } |
1612 | ||
1613 | /* Enqueue context for processing */ | |
3fe4ccc4 | 1614 | ret = dplane_update_enqueue(ctx); |
7cdb1a84 MS |
1615 | } |
1616 | ||
91f16812 | 1617 | /* Update counter */ |
25779064 | 1618 | atomic_fetch_add_explicit(&zdplane_info.dg_routes_in, 1, |
1d11b21f MS |
1619 | memory_order_relaxed); |
1620 | ||
91f16812 | 1621 | if (ret == AOK) |
655d681a | 1622 | result = ZEBRA_DPLANE_REQUEST_QUEUED; |
16c628de | 1623 | else { |
25779064 | 1624 | atomic_fetch_add_explicit(&zdplane_info.dg_route_errors, 1, |
1d11b21f | 1625 | memory_order_relaxed); |
16c628de MS |
1626 | if (ctx) |
1627 | dplane_ctx_free(&ctx); | |
1d11b21f | 1628 | } |
7cdb1a84 | 1629 | |
5709131c | 1630 | return result; |
7cdb1a84 MS |
1631 | } |
1632 | ||
1633 | /* | |
1634 | * Enqueue a route 'add' for the dataplane. | |
1635 | */ | |
655d681a MS |
1636 | enum zebra_dplane_result dplane_route_add(struct route_node *rn, |
1637 | struct route_entry *re) | |
7cdb1a84 | 1638 | { |
655d681a | 1639 | enum zebra_dplane_result ret = ZEBRA_DPLANE_REQUEST_FAILURE; |
7cdb1a84 | 1640 | |
5709131c | 1641 | if (rn == NULL || re == NULL) |
7cdb1a84 | 1642 | goto done; |
7cdb1a84 MS |
1643 | |
1644 | ret = dplane_route_update_internal(rn, re, NULL, | |
1645 | DPLANE_OP_ROUTE_INSTALL); | |
1646 | ||
1647 | done: | |
5709131c | 1648 | return ret; |
7cdb1a84 MS |
1649 | } |
1650 | ||
1651 | /* | |
1652 | * Enqueue a route update for the dataplane. | |
1653 | */ | |
655d681a MS |
1654 | enum zebra_dplane_result dplane_route_update(struct route_node *rn, |
1655 | struct route_entry *re, | |
1656 | struct route_entry *old_re) | |
7cdb1a84 | 1657 | { |
655d681a | 1658 | enum zebra_dplane_result ret = ZEBRA_DPLANE_REQUEST_FAILURE; |
7cdb1a84 | 1659 | |
5709131c | 1660 | if (rn == NULL || re == NULL) |
7cdb1a84 | 1661 | goto done; |
7cdb1a84 MS |
1662 | |
1663 | ret = dplane_route_update_internal(rn, re, old_re, | |
1664 | DPLANE_OP_ROUTE_UPDATE); | |
7cdb1a84 | 1665 | done: |
5709131c | 1666 | return ret; |
7cdb1a84 MS |
1667 | } |
1668 | ||
1669 | /* | |
1670 | * Enqueue a route removal for the dataplane. | |
1671 | */ | |
655d681a MS |
1672 | enum zebra_dplane_result dplane_route_delete(struct route_node *rn, |
1673 | struct route_entry *re) | |
7cdb1a84 | 1674 | { |
655d681a | 1675 | enum zebra_dplane_result ret = ZEBRA_DPLANE_REQUEST_FAILURE; |
7cdb1a84 | 1676 | |
5709131c | 1677 | if (rn == NULL || re == NULL) |
7cdb1a84 | 1678 | goto done; |
7cdb1a84 MS |
1679 | |
1680 | ret = dplane_route_update_internal(rn, re, NULL, | |
1681 | DPLANE_OP_ROUTE_DELETE); | |
1682 | ||
1683 | done: | |
5709131c | 1684 | return ret; |
7cdb1a84 MS |
1685 | } |
1686 | ||
cf363e1b MS |
1687 | /* |
1688 | * Notify the dplane when system/connected routes change. | |
1689 | */ | |
1690 | enum zebra_dplane_result dplane_sys_route_add(struct route_node *rn, | |
1691 | struct route_entry *re) | |
1692 | { | |
1693 | enum zebra_dplane_result ret = ZEBRA_DPLANE_REQUEST_FAILURE; | |
1694 | ||
1695 | /* Ignore this event unless a provider plugin has requested it. */ | |
1696 | if (!zdplane_info.dg_sys_route_notifs) { | |
1697 | ret = ZEBRA_DPLANE_REQUEST_SUCCESS; | |
1698 | goto done; | |
1699 | } | |
1700 | ||
1701 | if (rn == NULL || re == NULL) | |
1702 | goto done; | |
1703 | ||
1704 | ret = dplane_route_update_internal(rn, re, NULL, | |
1705 | DPLANE_OP_SYS_ROUTE_ADD); | |
1706 | ||
1707 | done: | |
1708 | return ret; | |
1709 | } | |
1710 | ||
1711 | /* | |
1712 | * Notify the dplane when system/connected routes are deleted. | |
1713 | */ | |
1714 | enum zebra_dplane_result dplane_sys_route_del(struct route_node *rn, | |
1715 | struct route_entry *re) | |
1716 | { | |
1717 | enum zebra_dplane_result ret = ZEBRA_DPLANE_REQUEST_FAILURE; | |
1718 | ||
1719 | /* Ignore this event unless a provider plugin has requested it. */ | |
1720 | if (!zdplane_info.dg_sys_route_notifs) { | |
1721 | ret = ZEBRA_DPLANE_REQUEST_SUCCESS; | |
1722 | goto done; | |
1723 | } | |
1724 | ||
1725 | if (rn == NULL || re == NULL) | |
1726 | goto done; | |
1727 | ||
1728 | ret = dplane_route_update_internal(rn, re, NULL, | |
1729 | DPLANE_OP_SYS_ROUTE_DELETE); | |
1730 | ||
1731 | done: | |
1732 | return ret; | |
1733 | } | |
1734 | ||
188a00e0 MS |
1735 | /* |
1736 | * Update from an async notification, to bring other fibs up-to-date. | |
1737 | */ | |
1738 | enum zebra_dplane_result | |
1739 | dplane_route_notif_update(struct route_node *rn, | |
1740 | struct route_entry *re, | |
1741 | enum dplane_op_e op, | |
1742 | struct zebra_dplane_ctx *ctx) | |
1743 | { | |
1744 | enum zebra_dplane_result ret = ZEBRA_DPLANE_REQUEST_FAILURE; | |
1745 | struct zebra_dplane_ctx *new_ctx = NULL; | |
1746 | struct nexthop *nexthop; | |
1747 | ||
1748 | if (rn == NULL || re == NULL) | |
1749 | goto done; | |
1750 | ||
1751 | new_ctx = dplane_ctx_alloc(); | |
1752 | if (new_ctx == NULL) | |
1753 | goto done; | |
1754 | ||
1755 | /* Init context with info from zebra data structs */ | |
1756 | dplane_ctx_route_init(new_ctx, op, rn, re); | |
1757 | ||
1758 | /* For add/update, need to adjust the nexthops so that we match | |
1759 | * the notification state, which may not be the route-entry/RIB | |
1760 | * state. | |
1761 | */ | |
1762 | if (op == DPLANE_OP_ROUTE_UPDATE || | |
1763 | op == DPLANE_OP_ROUTE_INSTALL) { | |
1764 | ||
1765 | nexthops_free(new_ctx->u.rinfo.zd_ng.nexthop); | |
1766 | new_ctx->u.rinfo.zd_ng.nexthop = NULL; | |
1767 | ||
1768 | copy_nexthops(&(new_ctx->u.rinfo.zd_ng.nexthop), | |
1769 | (rib_active_nhg(re))->nexthop, NULL); | |
1770 | ||
1771 | for (ALL_NEXTHOPS(new_ctx->u.rinfo.zd_ng, nexthop)) | |
1772 | UNSET_FLAG(nexthop->flags, NEXTHOP_FLAG_FIB); | |
1773 | ||
1774 | } | |
1775 | ||
1776 | /* Capture info about the source of the notification, in 'ctx' */ | |
1777 | dplane_ctx_set_notif_provider(new_ctx, | |
1778 | dplane_ctx_get_notif_provider(ctx)); | |
1779 | ||
3fe4ccc4 | 1780 | dplane_update_enqueue(new_ctx); |
188a00e0 MS |
1781 | |
1782 | ret = ZEBRA_DPLANE_REQUEST_QUEUED; | |
1783 | ||
1784 | done: | |
1785 | return ret; | |
1786 | } | |
1787 | ||
16c628de MS |
1788 | /* |
1789 | * Enqueue LSP add for the dataplane. | |
1790 | */ | |
1791 | enum zebra_dplane_result dplane_lsp_add(zebra_lsp_t *lsp) | |
1792 | { | |
1793 | enum zebra_dplane_result ret = | |
1794 | lsp_update_internal(lsp, DPLANE_OP_LSP_INSTALL); | |
1795 | ||
1796 | return ret; | |
1797 | } | |
1798 | ||
1799 | /* | |
1800 | * Enqueue LSP update for the dataplane. | |
1801 | */ | |
1802 | enum zebra_dplane_result dplane_lsp_update(zebra_lsp_t *lsp) | |
1803 | { | |
1804 | enum zebra_dplane_result ret = | |
1805 | lsp_update_internal(lsp, DPLANE_OP_LSP_UPDATE); | |
1806 | ||
1807 | return ret; | |
1808 | } | |
1809 | ||
1810 | /* | |
1811 | * Enqueue LSP delete for the dataplane. | |
1812 | */ | |
1813 | enum zebra_dplane_result dplane_lsp_delete(zebra_lsp_t *lsp) | |
1814 | { | |
1815 | enum zebra_dplane_result ret = | |
1816 | lsp_update_internal(lsp, DPLANE_OP_LSP_DELETE); | |
1817 | ||
1818 | return ret; | |
1819 | } | |
1820 | ||
188a00e0 MS |
1821 | /* Update or un-install resulting from an async notification */ |
1822 | enum zebra_dplane_result | |
1823 | dplane_lsp_notif_update(zebra_lsp_t *lsp, | |
1824 | enum dplane_op_e op, | |
1825 | struct zebra_dplane_ctx *notif_ctx) | |
1826 | { | |
1827 | enum zebra_dplane_result result = ZEBRA_DPLANE_REQUEST_FAILURE; | |
1828 | int ret = EINVAL; | |
1829 | struct zebra_dplane_ctx *ctx = NULL; | |
1830 | ||
1831 | /* Obtain context block */ | |
1832 | ctx = dplane_ctx_alloc(); | |
1833 | if (ctx == NULL) { | |
1834 | ret = ENOMEM; | |
1835 | goto done; | |
1836 | } | |
1837 | ||
1838 | ret = dplane_ctx_lsp_init(ctx, op, lsp); | |
1839 | if (ret != AOK) | |
1840 | goto done; | |
1841 | ||
1842 | /* Capture info about the source of the notification */ | |
1843 | dplane_ctx_set_notif_provider( | |
1844 | ctx, | |
1845 | dplane_ctx_get_notif_provider(notif_ctx)); | |
1846 | ||
3fe4ccc4 | 1847 | ret = dplane_update_enqueue(ctx); |
188a00e0 MS |
1848 | |
1849 | done: | |
1850 | /* Update counter */ | |
1851 | atomic_fetch_add_explicit(&zdplane_info.dg_lsps_in, 1, | |
1852 | memory_order_relaxed); | |
1853 | ||
1854 | if (ret == AOK) | |
1855 | result = ZEBRA_DPLANE_REQUEST_QUEUED; | |
1856 | else { | |
1857 | atomic_fetch_add_explicit(&zdplane_info.dg_lsp_errors, 1, | |
1858 | memory_order_relaxed); | |
1859 | if (ctx) | |
1860 | dplane_ctx_free(&ctx); | |
1861 | } | |
1862 | return result; | |
1863 | } | |
1864 | ||
97d8d05a MS |
1865 | /* |
1866 | * Enqueue pseudowire install for the dataplane. | |
1867 | */ | |
1868 | enum zebra_dplane_result dplane_pw_install(struct zebra_pw *pw) | |
1869 | { | |
1870 | return pw_update_internal(pw, DPLANE_OP_PW_INSTALL); | |
1871 | } | |
1872 | ||
1873 | /* | |
1874 | * Enqueue pseudowire un-install for the dataplane. | |
1875 | */ | |
1876 | enum zebra_dplane_result dplane_pw_uninstall(struct zebra_pw *pw) | |
1877 | { | |
1878 | return pw_update_internal(pw, DPLANE_OP_PW_UNINSTALL); | |
1879 | } | |
1880 | ||
16c628de MS |
1881 | /* |
1882 | * Common internal LSP update utility | |
1883 | */ | |
1884 | static enum zebra_dplane_result lsp_update_internal(zebra_lsp_t *lsp, | |
1885 | enum dplane_op_e op) | |
1886 | { | |
1887 | enum zebra_dplane_result result = ZEBRA_DPLANE_REQUEST_FAILURE; | |
1888 | int ret = EINVAL; | |
1889 | struct zebra_dplane_ctx *ctx = NULL; | |
1890 | ||
1891 | /* Obtain context block */ | |
1892 | ctx = dplane_ctx_alloc(); | |
16c628de MS |
1893 | |
1894 | ret = dplane_ctx_lsp_init(ctx, op, lsp); | |
1895 | if (ret != AOK) | |
1896 | goto done; | |
1897 | ||
3fe4ccc4 | 1898 | ret = dplane_update_enqueue(ctx); |
16c628de MS |
1899 | |
1900 | done: | |
1901 | /* Update counter */ | |
1902 | atomic_fetch_add_explicit(&zdplane_info.dg_lsps_in, 1, | |
1903 | memory_order_relaxed); | |
1904 | ||
1905 | if (ret == AOK) | |
1906 | result = ZEBRA_DPLANE_REQUEST_QUEUED; | |
1907 | else { | |
1908 | atomic_fetch_add_explicit(&zdplane_info.dg_lsp_errors, 1, | |
1909 | memory_order_relaxed); | |
d8e479a3 | 1910 | dplane_ctx_free(&ctx); |
16c628de MS |
1911 | } |
1912 | ||
1913 | return result; | |
1914 | } | |
1915 | ||
97d8d05a MS |
1916 | /* |
1917 | * Internal, common handler for pseudowire updates. | |
1918 | */ | |
1919 | static enum zebra_dplane_result pw_update_internal(struct zebra_pw *pw, | |
1920 | enum dplane_op_e op) | |
1921 | { | |
1922 | enum zebra_dplane_result result = ZEBRA_DPLANE_REQUEST_FAILURE; | |
1923 | int ret; | |
1924 | struct zebra_dplane_ctx *ctx = NULL; | |
1925 | ||
1926 | ctx = dplane_ctx_alloc(); | |
97d8d05a MS |
1927 | |
1928 | ret = dplane_ctx_pw_init(ctx, op, pw); | |
1929 | if (ret != AOK) | |
1930 | goto done; | |
1931 | ||
3fe4ccc4 | 1932 | ret = dplane_update_enqueue(ctx); |
97d8d05a MS |
1933 | |
1934 | done: | |
1935 | /* Update counter */ | |
1936 | atomic_fetch_add_explicit(&zdplane_info.dg_pws_in, 1, | |
1937 | memory_order_relaxed); | |
1938 | ||
1939 | if (ret == AOK) | |
1940 | result = ZEBRA_DPLANE_REQUEST_QUEUED; | |
1941 | else { | |
1942 | atomic_fetch_add_explicit(&zdplane_info.dg_pw_errors, 1, | |
1943 | memory_order_relaxed); | |
d8e479a3 | 1944 | dplane_ctx_free(&ctx); |
97d8d05a MS |
1945 | } |
1946 | ||
1947 | return result; | |
1948 | } | |
1949 | ||
a4a4802a MS |
1950 | /* |
1951 | * Enqueue interface address add for the dataplane. | |
1952 | */ | |
1953 | enum zebra_dplane_result dplane_intf_addr_set(const struct interface *ifp, | |
1954 | const struct connected *ifc) | |
1955 | { | |
64168803 MS |
1956 | #if !defined(HAVE_NETLINK) && defined(HAVE_STRUCT_IFALIASREQ) |
1957 | /* Extra checks for this OS path. */ | |
1958 | ||
1959 | /* Don't configure PtP addresses on broadcast ifs or reverse */ | |
1960 | if (!(ifp->flags & IFF_POINTOPOINT) != !CONNECTED_PEER(ifc)) { | |
1961 | if (IS_ZEBRA_DEBUG_KERNEL || IS_ZEBRA_DEBUG_DPLANE) | |
1962 | zlog_debug("Failed to set intf addr: mismatch p2p and connected"); | |
1963 | ||
1964 | return ZEBRA_DPLANE_REQUEST_FAILURE; | |
1965 | } | |
1966 | ||
1967 | /* Ensure that no existing installed v4 route conflicts with | |
1968 | * the new interface prefix. This check must be done in the | |
1969 | * zebra pthread context, and any route delete (if needed) | |
1970 | * is enqueued before the interface address programming attempt. | |
1971 | */ | |
1972 | if (ifc->address->family == AF_INET) { | |
1973 | struct prefix_ipv4 *p; | |
1974 | ||
1975 | p = (struct prefix_ipv4 *)ifc->address; | |
a36898e7 | 1976 | rib_lookup_and_pushup(p, ifp->vrf_id); |
64168803 MS |
1977 | } |
1978 | #endif | |
1979 | ||
1980 | return intf_addr_update_internal(ifp, ifc, DPLANE_OP_ADDR_INSTALL); | |
a4a4802a MS |
1981 | } |
1982 | ||
1983 | /* | |
1984 | * Enqueue interface address remove/uninstall for the dataplane. | |
1985 | */ | |
1986 | enum zebra_dplane_result dplane_intf_addr_unset(const struct interface *ifp, | |
1987 | const struct connected *ifc) | |
1988 | { | |
64168803 MS |
1989 | return intf_addr_update_internal(ifp, ifc, DPLANE_OP_ADDR_UNINSTALL); |
1990 | } | |
1991 | ||
1992 | static enum zebra_dplane_result intf_addr_update_internal( | |
1993 | const struct interface *ifp, const struct connected *ifc, | |
1994 | enum dplane_op_e op) | |
1995 | { | |
1996 | enum zebra_dplane_result result = ZEBRA_DPLANE_REQUEST_FAILURE; | |
1997 | int ret = EINVAL; | |
1998 | struct zebra_dplane_ctx *ctx = NULL; | |
1999 | struct zebra_ns *zns; | |
2000 | ||
2001 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) { | |
2002 | char addr_str[PREFIX_STRLEN]; | |
2003 | ||
2004 | prefix2str(ifc->address, addr_str, sizeof(addr_str)); | |
2005 | ||
2006 | zlog_debug("init intf ctx %s: idx %d, addr %u:%s", | |
a36898e7 | 2007 | dplane_op2str(op), ifp->ifindex, ifp->vrf_id, |
64168803 MS |
2008 | addr_str); |
2009 | } | |
2010 | ||
2011 | ctx = dplane_ctx_alloc(); | |
64168803 MS |
2012 | |
2013 | ctx->zd_op = op; | |
2014 | ctx->zd_status = ZEBRA_DPLANE_REQUEST_SUCCESS; | |
a36898e7 | 2015 | ctx->zd_vrf_id = ifp->vrf_id; |
64168803 | 2016 | |
a36898e7 | 2017 | zns = zebra_ns_lookup(ifp->vrf_id); |
64168803 MS |
2018 | dplane_ctx_ns_init(ctx, zns, false); |
2019 | ||
2020 | /* Init the interface-addr-specific area */ | |
2021 | memset(&ctx->u.intf, 0, sizeof(ctx->u.intf)); | |
2022 | ||
7c7ef4a8 MS |
2023 | strlcpy(ctx->zd_ifname, ifp->name, sizeof(ctx->zd_ifname)); |
2024 | ctx->zd_ifindex = ifp->ifindex; | |
64168803 MS |
2025 | ctx->u.intf.prefix = *(ifc->address); |
2026 | ||
2027 | if (if_is_broadcast(ifp)) | |
2028 | ctx->u.intf.flags |= DPLANE_INTF_BROADCAST; | |
2029 | ||
2030 | if (CONNECTED_PEER(ifc)) { | |
2031 | ctx->u.intf.dest_prefix = *(ifc->destination); | |
2032 | ctx->u.intf.flags |= | |
2033 | (DPLANE_INTF_CONNECTED | DPLANE_INTF_HAS_DEST); | |
2034 | } else if (ifc->destination) { | |
2035 | ctx->u.intf.dest_prefix = *(ifc->destination); | |
2036 | ctx->u.intf.flags |= DPLANE_INTF_HAS_DEST; | |
2037 | } | |
2038 | ||
2039 | if (CHECK_FLAG(ifc->flags, ZEBRA_IFA_SECONDARY)) | |
2040 | ctx->u.intf.flags |= DPLANE_INTF_SECONDARY; | |
2041 | ||
2042 | if (ifc->label) { | |
2043 | size_t len; | |
2044 | ||
2045 | ctx->u.intf.flags |= DPLANE_INTF_HAS_LABEL; | |
2046 | ||
2047 | /* Use embedded buffer if it's adequate; else allocate. */ | |
2048 | len = strlen(ifc->label); | |
2049 | ||
2050 | if (len < sizeof(ctx->u.intf.label_buf)) { | |
b7b7bf31 | 2051 | strlcpy(ctx->u.intf.label_buf, ifc->label, |
64168803 MS |
2052 | sizeof(ctx->u.intf.label_buf)); |
2053 | ctx->u.intf.label = ctx->u.intf.label_buf; | |
2054 | } else { | |
2055 | ctx->u.intf.label = strdup(ifc->label); | |
2056 | } | |
2057 | } | |
2058 | ||
3fe4ccc4 | 2059 | ret = dplane_update_enqueue(ctx); |
64168803 | 2060 | |
64168803 MS |
2061 | /* Increment counter */ |
2062 | atomic_fetch_add_explicit(&zdplane_info.dg_intf_addrs_in, 1, | |
2063 | memory_order_relaxed); | |
2064 | ||
2065 | if (ret == AOK) | |
2066 | result = ZEBRA_DPLANE_REQUEST_QUEUED; | |
2067 | else { | |
2068 | /* Error counter */ | |
2069 | atomic_fetch_add_explicit(&zdplane_info.dg_intf_addr_errors, | |
2070 | 1, memory_order_relaxed); | |
d8e479a3 | 2071 | dplane_ctx_free(&ctx); |
64168803 MS |
2072 | } |
2073 | ||
2074 | return result; | |
a4a4802a MS |
2075 | } |
2076 | ||
7597ac7b MS |
2077 | /* |
2078 | * Enqueue vxlan/evpn mac add (or update). | |
2079 | */ | |
2080 | enum zebra_dplane_result dplane_mac_add(const struct interface *ifp, | |
2081 | vlanid_t vid, | |
2082 | const struct ethaddr *mac, | |
2083 | struct in_addr vtep_ip, | |
2084 | bool sticky) | |
2085 | { | |
2086 | enum zebra_dplane_result result; | |
2087 | ||
2088 | /* Use common helper api */ | |
2089 | result = mac_update_internal(DPLANE_OP_MAC_INSTALL, ifp, vid, | |
2090 | mac, vtep_ip, sticky); | |
2091 | return result; | |
2092 | } | |
2093 | ||
2094 | /* | |
2095 | * Enqueue vxlan/evpn mac delete. | |
2096 | */ | |
2097 | enum zebra_dplane_result dplane_mac_del(const struct interface *ifp, | |
2098 | vlanid_t vid, | |
2099 | const struct ethaddr *mac, | |
2100 | struct in_addr vtep_ip) | |
2101 | { | |
2102 | enum zebra_dplane_result result; | |
2103 | ||
2104 | /* Use common helper api */ | |
2105 | result = mac_update_internal(DPLANE_OP_MAC_DELETE, ifp, vid, mac, | |
2106 | vtep_ip, false); | |
2107 | return result; | |
2108 | } | |
2109 | ||
2110 | /* | |
2111 | * Common helper api for MAC address/vxlan updates | |
2112 | */ | |
2113 | static enum zebra_dplane_result | |
2114 | mac_update_internal(enum dplane_op_e op, | |
2115 | const struct interface *ifp, | |
2116 | vlanid_t vid, | |
2117 | const struct ethaddr *mac, | |
2118 | struct in_addr vtep_ip, | |
2119 | bool sticky) | |
2120 | { | |
2121 | enum zebra_dplane_result result = ZEBRA_DPLANE_REQUEST_FAILURE; | |
2122 | int ret; | |
2123 | struct zebra_dplane_ctx *ctx = NULL; | |
2124 | struct zebra_ns *zns; | |
2125 | ||
036d93c0 MS |
2126 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) { |
2127 | char buf1[ETHER_ADDR_STRLEN], buf2[PREFIX_STRLEN]; | |
2128 | ||
2129 | zlog_debug("init mac ctx %s: mac %s, ifp %s, vtep %s", | |
2130 | dplane_op2str(op), | |
2131 | prefix_mac2str(mac, buf1, sizeof(buf1)), | |
2132 | ifp->name, | |
2133 | inet_ntop(AF_INET, &vtep_ip, buf2, sizeof(buf2))); | |
2134 | } | |
2135 | ||
7597ac7b MS |
2136 | ctx = dplane_ctx_alloc(); |
2137 | ||
2138 | ctx->zd_op = op; | |
2139 | ctx->zd_status = ZEBRA_DPLANE_REQUEST_SUCCESS; | |
2140 | ctx->zd_vrf_id = ifp->vrf_id; | |
2141 | ||
2142 | zns = zebra_ns_lookup(ifp->vrf_id); | |
2143 | dplane_ctx_ns_init(ctx, zns, false); | |
2144 | ||
2145 | strlcpy(ctx->zd_ifname, ifp->name, sizeof(ctx->zd_ifname)); | |
2146 | ctx->zd_ifindex = ifp->ifindex; | |
2147 | ||
2148 | /* Init the mac-specific data area */ | |
2149 | memset(&ctx->u.macinfo, 0, sizeof(ctx->u.macinfo)); | |
2150 | ||
2151 | ctx->u.macinfo.vtep_ip = vtep_ip; | |
2152 | ctx->u.macinfo.mac = *mac; | |
2153 | ctx->u.macinfo.vid = vid; | |
2154 | ctx->u.macinfo.is_sticky = sticky; | |
2155 | ||
2156 | /* Enqueue for processing on the dplane pthread */ | |
2157 | ret = dplane_update_enqueue(ctx); | |
2158 | ||
2159 | /* Increment counter */ | |
2160 | atomic_fetch_add_explicit(&zdplane_info.dg_macs_in, 1, | |
2161 | memory_order_relaxed); | |
2162 | ||
2163 | if (ret == AOK) | |
2164 | result = ZEBRA_DPLANE_REQUEST_QUEUED; | |
2165 | else { | |
2166 | /* Error counter */ | |
2167 | atomic_fetch_add_explicit(&zdplane_info.dg_mac_errors, 1, | |
2168 | memory_order_relaxed); | |
2169 | dplane_ctx_free(&ctx); | |
2170 | } | |
2171 | ||
2172 | return result; | |
2173 | } | |
2174 | ||
1d11b21f MS |
2175 | /* |
2176 | * Handler for 'show dplane' | |
2177 | */ | |
2178 | int dplane_show_helper(struct vty *vty, bool detailed) | |
2179 | { | |
16c628de MS |
2180 | uint64_t queued, queue_max, limit, errs, incoming, yields, |
2181 | other_errs; | |
1d11b21f | 2182 | |
4dfd7a02 | 2183 | /* Using atomics because counters are being changed in different |
c831033f | 2184 | * pthread contexts. |
4dfd7a02 | 2185 | */ |
25779064 | 2186 | incoming = atomic_load_explicit(&zdplane_info.dg_routes_in, |
1d11b21f | 2187 | memory_order_relaxed); |
91f16812 MS |
2188 | limit = atomic_load_explicit(&zdplane_info.dg_max_queued_updates, |
2189 | memory_order_relaxed); | |
25779064 | 2190 | queued = atomic_load_explicit(&zdplane_info.dg_routes_queued, |
1d11b21f | 2191 | memory_order_relaxed); |
25779064 | 2192 | queue_max = atomic_load_explicit(&zdplane_info.dg_routes_queued_max, |
4dfd7a02 | 2193 | memory_order_relaxed); |
25779064 | 2194 | errs = atomic_load_explicit(&zdplane_info.dg_route_errors, |
1d11b21f | 2195 | memory_order_relaxed); |
c831033f MS |
2196 | yields = atomic_load_explicit(&zdplane_info.dg_update_yields, |
2197 | memory_order_relaxed); | |
16c628de MS |
2198 | other_errs = atomic_load_explicit(&zdplane_info.dg_other_errors, |
2199 | memory_order_relaxed); | |
1d11b21f | 2200 | |
c831033f MS |
2201 | vty_out(vty, "Zebra dataplane:\nRoute updates: %"PRIu64"\n", |
2202 | incoming); | |
1d11b21f | 2203 | vty_out(vty, "Route update errors: %"PRIu64"\n", errs); |
16c628de | 2204 | vty_out(vty, "Other errors : %"PRIu64"\n", other_errs); |
91f16812 | 2205 | vty_out(vty, "Route update queue limit: %"PRIu64"\n", limit); |
1d11b21f | 2206 | vty_out(vty, "Route update queue depth: %"PRIu64"\n", queued); |
4dfd7a02 | 2207 | vty_out(vty, "Route update queue max: %"PRIu64"\n", queue_max); |
4280d91c MS |
2208 | vty_out(vty, "Dplane update yields: %"PRIu64"\n", yields); |
2209 | ||
2210 | incoming = atomic_load_explicit(&zdplane_info.dg_lsps_in, | |
2211 | memory_order_relaxed); | |
2212 | errs = atomic_load_explicit(&zdplane_info.dg_lsp_errors, | |
2213 | memory_order_relaxed); | |
2214 | vty_out(vty, "LSP updates: %"PRIu64"\n", incoming); | |
2215 | vty_out(vty, "LSP update errors: %"PRIu64"\n", errs); | |
2216 | ||
2217 | incoming = atomic_load_explicit(&zdplane_info.dg_pws_in, | |
2218 | memory_order_relaxed); | |
2219 | errs = atomic_load_explicit(&zdplane_info.dg_pw_errors, | |
2220 | memory_order_relaxed); | |
2221 | vty_out(vty, "PW updates: %"PRIu64"\n", incoming); | |
2222 | vty_out(vty, "PW update errors: %"PRIu64"\n", errs); | |
2223 | ||
2224 | incoming = atomic_load_explicit(&zdplane_info.dg_intf_addrs_in, | |
2225 | memory_order_relaxed); | |
2226 | errs = atomic_load_explicit(&zdplane_info.dg_intf_addr_errors, | |
2227 | memory_order_relaxed); | |
2228 | vty_out(vty, "Intf addr updates: %"PRIu64"\n", incoming); | |
2229 | vty_out(vty, "Intf addr errors: %"PRIu64"\n", errs); | |
2230 | ||
2231 | incoming = atomic_load_explicit(&zdplane_info.dg_macs_in, | |
2232 | memory_order_relaxed); | |
2233 | errs = atomic_load_explicit(&zdplane_info.dg_mac_errors, | |
2234 | memory_order_relaxed); | |
2235 | vty_out(vty, "EVPN MAC updates: %"PRIu64"\n", incoming); | |
2236 | vty_out(vty, "EVPN MAC errors: %"PRIu64"\n", errs); | |
1d11b21f MS |
2237 | |
2238 | return CMD_SUCCESS; | |
2239 | } | |
2240 | ||
2241 | /* | |
2242 | * Handler for 'show dplane providers' | |
2243 | */ | |
2244 | int dplane_show_provs_helper(struct vty *vty, bool detailed) | |
2245 | { | |
c831033f MS |
2246 | struct zebra_dplane_provider *prov; |
2247 | uint64_t in, in_max, out, out_max; | |
2248 | ||
2249 | vty_out(vty, "Zebra dataplane providers:\n"); | |
2250 | ||
2251 | DPLANE_LOCK(); | |
2252 | prov = TAILQ_FIRST(&zdplane_info.dg_providers_q); | |
2253 | DPLANE_UNLOCK(); | |
2254 | ||
2255 | /* Show counters, useful info from each registered provider */ | |
2256 | while (prov) { | |
2257 | ||
2258 | in = atomic_load_explicit(&prov->dp_in_counter, | |
2259 | memory_order_relaxed); | |
2260 | in_max = atomic_load_explicit(&prov->dp_in_max, | |
2261 | memory_order_relaxed); | |
2262 | out = atomic_load_explicit(&prov->dp_out_counter, | |
2263 | memory_order_relaxed); | |
2264 | out_max = atomic_load_explicit(&prov->dp_out_max, | |
2265 | memory_order_relaxed); | |
2266 | ||
c9d17fe8 MS |
2267 | vty_out(vty, "%s (%u): in: %"PRIu64", q_max: %"PRIu64", " |
2268 | "out: %"PRIu64", q_max: %"PRIu64"\n", | |
c831033f MS |
2269 | prov->dp_name, prov->dp_id, in, in_max, out, out_max); |
2270 | ||
2271 | DPLANE_LOCK(); | |
2272 | prov = TAILQ_NEXT(prov, dp_prov_link); | |
2273 | DPLANE_UNLOCK(); | |
2274 | } | |
1d11b21f MS |
2275 | |
2276 | return CMD_SUCCESS; | |
2277 | } | |
2278 | ||
b8e0423d MS |
2279 | /* |
2280 | * Provider registration | |
2281 | */ | |
2282 | int dplane_provider_register(const char *name, | |
c831033f MS |
2283 | enum dplane_provider_prio prio, |
2284 | int flags, | |
1dd4ea8a | 2285 | int (*start_fp)(struct zebra_dplane_provider *), |
4c206c8f MS |
2286 | int (*fp)(struct zebra_dplane_provider *), |
2287 | int (*fini_fp)(struct zebra_dplane_provider *, | |
2288 | bool early), | |
1ff8a248 MS |
2289 | void *data, |
2290 | struct zebra_dplane_provider **prov_p) | |
b8e0423d MS |
2291 | { |
2292 | int ret = 0; | |
6fb51ccb | 2293 | struct zebra_dplane_provider *p = NULL, *last; |
b8e0423d MS |
2294 | |
2295 | /* Validate */ | |
2296 | if (fp == NULL) { | |
2297 | ret = EINVAL; | |
2298 | goto done; | |
2299 | } | |
2300 | ||
2301 | if (prio <= DPLANE_PRIO_NONE || | |
1bcea841 | 2302 | prio > DPLANE_PRIO_LAST) { |
b8e0423d MS |
2303 | ret = EINVAL; |
2304 | goto done; | |
2305 | } | |
2306 | ||
2307 | /* Allocate and init new provider struct */ | |
25779064 | 2308 | p = XCALLOC(MTYPE_DP_PROV, sizeof(struct zebra_dplane_provider)); |
b8e0423d | 2309 | |
c831033f MS |
2310 | pthread_mutex_init(&(p->dp_mutex), NULL); |
2311 | TAILQ_INIT(&(p->dp_ctx_in_q)); | |
2312 | TAILQ_INIT(&(p->dp_ctx_out_q)); | |
b8e0423d MS |
2313 | |
2314 | p->dp_priority = prio; | |
2315 | p->dp_fp = fp; | |
1dd4ea8a | 2316 | p->dp_start = start_fp; |
18c37974 | 2317 | p->dp_fini = fini_fp; |
c831033f | 2318 | p->dp_data = data; |
18c37974 | 2319 | |
c831033f | 2320 | /* Lock - the dplane pthread may be running */ |
18c37974 | 2321 | DPLANE_LOCK(); |
b8e0423d | 2322 | |
25779064 | 2323 | p->dp_id = ++zdplane_info.dg_provider_id; |
b8e0423d | 2324 | |
c831033f MS |
2325 | if (name) |
2326 | strlcpy(p->dp_name, name, DPLANE_PROVIDER_NAMELEN); | |
2327 | else | |
2328 | snprintf(p->dp_name, DPLANE_PROVIDER_NAMELEN, | |
2329 | "provider-%u", p->dp_id); | |
2330 | ||
b8e0423d | 2331 | /* Insert into list ordered by priority */ |
c831033f | 2332 | TAILQ_FOREACH(last, &zdplane_info.dg_providers_q, dp_prov_link) { |
5709131c | 2333 | if (last->dp_priority > p->dp_priority) |
b8e0423d | 2334 | break; |
b8e0423d MS |
2335 | } |
2336 | ||
5709131c | 2337 | if (last) |
c831033f | 2338 | TAILQ_INSERT_BEFORE(last, p, dp_prov_link); |
5709131c | 2339 | else |
25779064 | 2340 | TAILQ_INSERT_TAIL(&zdplane_info.dg_providers_q, p, |
c831033f | 2341 | dp_prov_link); |
b8e0423d | 2342 | |
18c37974 MS |
2343 | /* And unlock */ |
2344 | DPLANE_UNLOCK(); | |
2345 | ||
c831033f MS |
2346 | if (IS_ZEBRA_DEBUG_DPLANE) |
2347 | zlog_debug("dplane: registered new provider '%s' (%u), prio %d", | |
2348 | p->dp_name, p->dp_id, p->dp_priority); | |
2349 | ||
b8e0423d | 2350 | done: |
1ff8a248 MS |
2351 | if (prov_p) |
2352 | *prov_p = p; | |
2353 | ||
5709131c | 2354 | return ret; |
b8e0423d MS |
2355 | } |
2356 | ||
c831033f MS |
2357 | /* Accessors for provider attributes */ |
2358 | const char *dplane_provider_get_name(const struct zebra_dplane_provider *prov) | |
2359 | { | |
2360 | return prov->dp_name; | |
2361 | } | |
2362 | ||
2363 | uint32_t dplane_provider_get_id(const struct zebra_dplane_provider *prov) | |
2364 | { | |
2365 | return prov->dp_id; | |
2366 | } | |
2367 | ||
2368 | void *dplane_provider_get_data(const struct zebra_dplane_provider *prov) | |
2369 | { | |
2370 | return prov->dp_data; | |
2371 | } | |
2372 | ||
2373 | int dplane_provider_get_work_limit(const struct zebra_dplane_provider *prov) | |
2374 | { | |
2375 | return zdplane_info.dg_updates_per_cycle; | |
2376 | } | |
2377 | ||
ad6aad4d MS |
2378 | /* Lock/unlock a provider's mutex - iff the provider was registered with |
2379 | * the THREADED flag. | |
2380 | */ | |
2381 | void dplane_provider_lock(struct zebra_dplane_provider *prov) | |
2382 | { | |
2383 | if (dplane_provider_is_threaded(prov)) | |
2384 | DPLANE_PROV_LOCK(prov); | |
2385 | } | |
2386 | ||
2387 | void dplane_provider_unlock(struct zebra_dplane_provider *prov) | |
2388 | { | |
2389 | if (dplane_provider_is_threaded(prov)) | |
2390 | DPLANE_PROV_UNLOCK(prov); | |
2391 | } | |
2392 | ||
c831033f MS |
2393 | /* |
2394 | * Dequeue and maintain associated counter | |
2395 | */ | |
2396 | struct zebra_dplane_ctx *dplane_provider_dequeue_in_ctx( | |
2397 | struct zebra_dplane_provider *prov) | |
2398 | { | |
2399 | struct zebra_dplane_ctx *ctx = NULL; | |
2400 | ||
ad6aad4d | 2401 | dplane_provider_lock(prov); |
c831033f MS |
2402 | |
2403 | ctx = TAILQ_FIRST(&(prov->dp_ctx_in_q)); | |
2404 | if (ctx) { | |
2405 | TAILQ_REMOVE(&(prov->dp_ctx_in_q), ctx, zd_q_entries); | |
c9d17fe8 MS |
2406 | |
2407 | atomic_fetch_sub_explicit(&prov->dp_in_queued, 1, | |
2408 | memory_order_relaxed); | |
c831033f MS |
2409 | } |
2410 | ||
ad6aad4d | 2411 | dplane_provider_unlock(prov); |
c831033f MS |
2412 | |
2413 | return ctx; | |
2414 | } | |
2415 | ||
2416 | /* | |
2417 | * Dequeue work to a list, return count | |
2418 | */ | |
2419 | int dplane_provider_dequeue_in_list(struct zebra_dplane_provider *prov, | |
2420 | struct dplane_ctx_q *listp) | |
2421 | { | |
2422 | int limit, ret; | |
2423 | struct zebra_dplane_ctx *ctx; | |
2424 | ||
2425 | limit = zdplane_info.dg_updates_per_cycle; | |
2426 | ||
ad6aad4d | 2427 | dplane_provider_lock(prov); |
c831033f MS |
2428 | |
2429 | for (ret = 0; ret < limit; ret++) { | |
2430 | ctx = TAILQ_FIRST(&(prov->dp_ctx_in_q)); | |
2431 | if (ctx) { | |
2432 | TAILQ_REMOVE(&(prov->dp_ctx_in_q), ctx, zd_q_entries); | |
2433 | ||
2434 | TAILQ_INSERT_TAIL(listp, ctx, zd_q_entries); | |
2435 | } else { | |
2436 | break; | |
2437 | } | |
2438 | } | |
2439 | ||
c9d17fe8 MS |
2440 | if (ret > 0) |
2441 | atomic_fetch_sub_explicit(&prov->dp_in_queued, ret, | |
2442 | memory_order_relaxed); | |
2443 | ||
ad6aad4d | 2444 | dplane_provider_unlock(prov); |
c831033f MS |
2445 | |
2446 | return ret; | |
2447 | } | |
2448 | ||
2449 | /* | |
2450 | * Enqueue and maintain associated counter | |
2451 | */ | |
2452 | void dplane_provider_enqueue_out_ctx(struct zebra_dplane_provider *prov, | |
2453 | struct zebra_dplane_ctx *ctx) | |
2454 | { | |
ad6aad4d | 2455 | dplane_provider_lock(prov); |
c831033f MS |
2456 | |
2457 | TAILQ_INSERT_TAIL(&(prov->dp_ctx_out_q), ctx, | |
2458 | zd_q_entries); | |
2459 | ||
ad6aad4d | 2460 | dplane_provider_unlock(prov); |
c831033f MS |
2461 | |
2462 | atomic_fetch_add_explicit(&(prov->dp_out_counter), 1, | |
2463 | memory_order_relaxed); | |
2464 | } | |
2465 | ||
62b8bb7a MS |
2466 | /* |
2467 | * Accessor for provider object | |
2468 | */ | |
c831033f MS |
2469 | bool dplane_provider_is_threaded(const struct zebra_dplane_provider *prov) |
2470 | { | |
2471 | return (prov->dp_flags & DPLANE_PROV_FLAG_THREADED); | |
2472 | } | |
2473 | ||
62b8bb7a MS |
2474 | /* |
2475 | * Internal helper that copies information from a zebra ns object; this is | |
2476 | * called in the zebra main pthread context as part of dplane ctx init. | |
2477 | */ | |
2478 | static void dplane_info_from_zns(struct zebra_dplane_info *ns_info, | |
2479 | struct zebra_ns *zns) | |
2480 | { | |
2481 | ns_info->ns_id = zns->ns_id; | |
2482 | ||
2483 | #if defined(HAVE_NETLINK) | |
2484 | ns_info->is_cmd = true; | |
2485 | ns_info->nls = zns->netlink_dplane; | |
2486 | #endif /* NETLINK */ | |
2487 | } | |
2488 | ||
c831033f MS |
2489 | /* |
2490 | * Provider api to signal that work/events are available | |
2491 | * for the dataplane pthread. | |
2492 | */ | |
2493 | int dplane_provider_work_ready(void) | |
2494 | { | |
e5a60d82 MS |
2495 | /* Note that during zebra startup, we may be offered work before |
2496 | * the dataplane pthread (and thread-master) are ready. We want to | |
2497 | * enqueue the work, but the event-scheduling machinery may not be | |
2498 | * available. | |
2499 | */ | |
2500 | if (zdplane_info.dg_run) { | |
2501 | thread_add_event(zdplane_info.dg_master, | |
2502 | dplane_thread_loop, NULL, 0, | |
2503 | &zdplane_info.dg_t_update); | |
2504 | } | |
c831033f MS |
2505 | |
2506 | return AOK; | |
2507 | } | |
2508 | ||
593e4eb1 MS |
2509 | /* |
2510 | * Enqueue a context directly to zebra main. | |
2511 | */ | |
2512 | void dplane_provider_enqueue_to_zebra(struct zebra_dplane_ctx *ctx) | |
2513 | { | |
2514 | struct dplane_ctx_q temp_list; | |
2515 | ||
2516 | /* Zebra's api takes a list, so we need to use a temporary list */ | |
2517 | TAILQ_INIT(&temp_list); | |
2518 | ||
2519 | TAILQ_INSERT_TAIL(&temp_list, ctx, zd_q_entries); | |
2520 | (zdplane_info.dg_results_cb)(&temp_list); | |
2521 | } | |
2522 | ||
7cdb1a84 | 2523 | /* |
c831033f | 2524 | * Kernel dataplane provider |
7cdb1a84 | 2525 | */ |
c831033f | 2526 | |
16c628de MS |
2527 | /* |
2528 | * Handler for kernel LSP updates | |
2529 | */ | |
2530 | static enum zebra_dplane_result | |
2531 | kernel_dplane_lsp_update(struct zebra_dplane_ctx *ctx) | |
2532 | { | |
2533 | enum zebra_dplane_result res; | |
2534 | ||
2535 | /* Call into the synchronous kernel-facing code here */ | |
2536 | res = kernel_lsp_update(ctx); | |
2537 | ||
2538 | if (res != ZEBRA_DPLANE_REQUEST_SUCCESS) | |
2539 | atomic_fetch_add_explicit( | |
2540 | &zdplane_info.dg_lsp_errors, 1, | |
2541 | memory_order_relaxed); | |
2542 | ||
2543 | return res; | |
2544 | } | |
2545 | ||
c10a646d MS |
2546 | /* |
2547 | * Handler for kernel pseudowire updates | |
2548 | */ | |
2549 | static enum zebra_dplane_result | |
2550 | kernel_dplane_pw_update(struct zebra_dplane_ctx *ctx) | |
2551 | { | |
2552 | enum zebra_dplane_result res; | |
2553 | ||
2554 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) | |
2555 | zlog_debug("Dplane pw %s: op %s af %d loc: %u rem: %u", | |
7c7ef4a8 | 2556 | dplane_ctx_get_ifname(ctx), |
c10a646d MS |
2557 | dplane_op2str(ctx->zd_op), |
2558 | dplane_ctx_get_pw_af(ctx), | |
2559 | dplane_ctx_get_pw_local_label(ctx), | |
2560 | dplane_ctx_get_pw_remote_label(ctx)); | |
2561 | ||
2562 | res = kernel_pw_update(ctx); | |
2563 | ||
2564 | if (res != ZEBRA_DPLANE_REQUEST_SUCCESS) | |
2565 | atomic_fetch_add_explicit( | |
2566 | &zdplane_info.dg_pw_errors, 1, | |
2567 | memory_order_relaxed); | |
2568 | ||
2569 | return res; | |
2570 | } | |
2571 | ||
16c628de MS |
2572 | /* |
2573 | * Handler for kernel route updates | |
2574 | */ | |
2575 | static enum zebra_dplane_result | |
2576 | kernel_dplane_route_update(struct zebra_dplane_ctx *ctx) | |
2577 | { | |
2578 | enum zebra_dplane_result res; | |
2579 | ||
2580 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) { | |
2581 | char dest_str[PREFIX_STRLEN]; | |
2582 | ||
2583 | prefix2str(dplane_ctx_get_dest(ctx), | |
2584 | dest_str, sizeof(dest_str)); | |
2585 | ||
2586 | zlog_debug("%u:%s Dplane route update ctx %p op %s", | |
2587 | dplane_ctx_get_vrf(ctx), dest_str, | |
2588 | ctx, dplane_op2str(dplane_ctx_get_op(ctx))); | |
2589 | } | |
2590 | ||
2591 | /* Call into the synchronous kernel-facing code here */ | |
2592 | res = kernel_route_update(ctx); | |
2593 | ||
2594 | if (res != ZEBRA_DPLANE_REQUEST_SUCCESS) | |
2595 | atomic_fetch_add_explicit( | |
2596 | &zdplane_info.dg_route_errors, 1, | |
2597 | memory_order_relaxed); | |
2598 | ||
2599 | return res; | |
2600 | } | |
2601 | ||
64168803 MS |
2602 | /* |
2603 | * Handler for kernel-facing interface address updates | |
2604 | */ | |
2605 | static enum zebra_dplane_result | |
2606 | kernel_dplane_address_update(struct zebra_dplane_ctx *ctx) | |
2607 | { | |
2608 | enum zebra_dplane_result res; | |
2609 | ||
64168803 MS |
2610 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) { |
2611 | char dest_str[PREFIX_STRLEN]; | |
2612 | ||
2613 | prefix2str(dplane_ctx_get_intf_addr(ctx), dest_str, | |
2614 | sizeof(dest_str)); | |
2615 | ||
2616 | zlog_debug("Dplane intf %s, idx %u, addr %s", | |
2617 | dplane_op2str(dplane_ctx_get_op(ctx)), | |
2618 | dplane_ctx_get_ifindex(ctx), dest_str); | |
2619 | } | |
2620 | ||
2621 | res = kernel_address_update_ctx(ctx); | |
2622 | ||
2623 | if (res != ZEBRA_DPLANE_REQUEST_SUCCESS) | |
2624 | atomic_fetch_add_explicit(&zdplane_info.dg_intf_addr_errors, | |
2625 | 1, memory_order_relaxed); | |
2626 | ||
2627 | return res; | |
2628 | } | |
2629 | ||
036d93c0 MS |
2630 | /* |
2631 | * Handler for kernel-facing MAC address updates | |
2632 | */ | |
2633 | static enum zebra_dplane_result | |
2634 | kernel_dplane_mac_update(struct zebra_dplane_ctx *ctx) | |
2635 | { | |
2636 | enum zebra_dplane_result res; | |
2637 | ||
2638 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) { | |
2639 | char buf[ETHER_ADDR_STRLEN]; | |
2640 | ||
2641 | prefix_mac2str(dplane_ctx_mac_get_addr(ctx), buf, | |
2642 | sizeof(buf)); | |
2643 | ||
2644 | zlog_debug("Dplane %s, mac %s, ifindex %u", | |
2645 | dplane_op2str(dplane_ctx_get_op(ctx)), | |
2646 | buf, dplane_ctx_get_ifindex(ctx)); | |
2647 | } | |
2648 | ||
2649 | res = kernel_mac_update_ctx(ctx); | |
2650 | ||
2651 | if (res != ZEBRA_DPLANE_REQUEST_SUCCESS) | |
2652 | atomic_fetch_add_explicit(&zdplane_info.dg_mac_errors, | |
2653 | 1, memory_order_relaxed); | |
2654 | ||
2655 | return res; | |
2656 | } | |
2657 | ||
c831033f MS |
2658 | /* |
2659 | * Kernel provider callback | |
2660 | */ | |
2661 | static int kernel_dplane_process_func(struct zebra_dplane_provider *prov) | |
7cdb1a84 | 2662 | { |
c831033f MS |
2663 | enum zebra_dplane_result res; |
2664 | struct zebra_dplane_ctx *ctx; | |
2665 | int counter, limit; | |
7cdb1a84 | 2666 | |
c831033f | 2667 | limit = dplane_provider_get_work_limit(prov); |
7cdb1a84 | 2668 | |
c831033f MS |
2669 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) |
2670 | zlog_debug("dplane provider '%s': processing", | |
2671 | dplane_provider_get_name(prov)); | |
7cdb1a84 | 2672 | |
c831033f | 2673 | for (counter = 0; counter < limit; counter++) { |
91f16812 | 2674 | |
c831033f MS |
2675 | ctx = dplane_provider_dequeue_in_ctx(prov); |
2676 | if (ctx == NULL) | |
2677 | break; | |
d8c16a95 | 2678 | |
9677961e MS |
2679 | /* A previous provider plugin may have asked to skip the |
2680 | * kernel update. | |
2681 | */ | |
2682 | if (dplane_ctx_is_skip_kernel(ctx)) { | |
2683 | res = ZEBRA_DPLANE_REQUEST_SUCCESS; | |
2684 | goto skip_one; | |
2685 | } | |
2686 | ||
16c628de MS |
2687 | /* Dispatch to appropriate kernel-facing apis */ |
2688 | switch (dplane_ctx_get_op(ctx)) { | |
1d11b21f | 2689 | |
16c628de MS |
2690 | case DPLANE_OP_ROUTE_INSTALL: |
2691 | case DPLANE_OP_ROUTE_UPDATE: | |
2692 | case DPLANE_OP_ROUTE_DELETE: | |
2693 | res = kernel_dplane_route_update(ctx); | |
2694 | break; | |
d8c16a95 | 2695 | |
16c628de MS |
2696 | case DPLANE_OP_LSP_INSTALL: |
2697 | case DPLANE_OP_LSP_UPDATE: | |
2698 | case DPLANE_OP_LSP_DELETE: | |
2699 | res = kernel_dplane_lsp_update(ctx); | |
2700 | break; | |
d8c16a95 | 2701 | |
c10a646d MS |
2702 | case DPLANE_OP_PW_INSTALL: |
2703 | case DPLANE_OP_PW_UNINSTALL: | |
2704 | res = kernel_dplane_pw_update(ctx); | |
2705 | break; | |
2706 | ||
64168803 MS |
2707 | case DPLANE_OP_ADDR_INSTALL: |
2708 | case DPLANE_OP_ADDR_UNINSTALL: | |
2709 | res = kernel_dplane_address_update(ctx); | |
2710 | break; | |
2711 | ||
036d93c0 MS |
2712 | case DPLANE_OP_MAC_INSTALL: |
2713 | case DPLANE_OP_MAC_DELETE: | |
2714 | res = kernel_dplane_mac_update(ctx); | |
2715 | break; | |
2716 | ||
104e3ad9 | 2717 | /* Ignore 'notifications' - no-op */ |
cf363e1b MS |
2718 | case DPLANE_OP_SYS_ROUTE_ADD: |
2719 | case DPLANE_OP_SYS_ROUTE_DELETE: | |
54818e3b | 2720 | case DPLANE_OP_ROUTE_NOTIFY: |
104e3ad9 | 2721 | case DPLANE_OP_LSP_NOTIFY: |
cf363e1b MS |
2722 | res = ZEBRA_DPLANE_REQUEST_SUCCESS; |
2723 | break; | |
2724 | ||
16c628de | 2725 | default: |
c831033f | 2726 | atomic_fetch_add_explicit( |
16c628de | 2727 | &zdplane_info.dg_other_errors, 1, |
c831033f | 2728 | memory_order_relaxed); |
d8c16a95 | 2729 | |
16c628de MS |
2730 | res = ZEBRA_DPLANE_REQUEST_FAILURE; |
2731 | break; | |
2732 | } | |
2733 | ||
9677961e | 2734 | skip_one: |
c831033f MS |
2735 | dplane_ctx_set_status(ctx, res); |
2736 | ||
2737 | dplane_provider_enqueue_out_ctx(prov, ctx); | |
2738 | } | |
2739 | ||
2740 | /* Ensure that we'll run the work loop again if there's still | |
2741 | * more work to do. | |
2742 | */ | |
2743 | if (counter >= limit) { | |
2744 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) | |
2745 | zlog_debug("dplane provider '%s' reached max updates %d", | |
2746 | dplane_provider_get_name(prov), counter); | |
2747 | ||
2748 | atomic_fetch_add_explicit(&zdplane_info.dg_update_yields, | |
2749 | 1, memory_order_relaxed); | |
2750 | ||
2751 | dplane_provider_work_ready(); | |
2752 | } | |
2753 | ||
2754 | return 0; | |
2755 | } | |
2756 | ||
e5a60d82 MS |
2757 | #if DPLANE_TEST_PROVIDER |
2758 | ||
c831033f MS |
2759 | /* |
2760 | * Test dataplane provider plugin | |
2761 | */ | |
2762 | ||
2763 | /* | |
2764 | * Test provider process callback | |
2765 | */ | |
2766 | static int test_dplane_process_func(struct zebra_dplane_provider *prov) | |
2767 | { | |
2768 | struct zebra_dplane_ctx *ctx; | |
2769 | int counter, limit; | |
2770 | ||
2771 | /* Just moving from 'in' queue to 'out' queue */ | |
2772 | ||
2773 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) | |
2774 | zlog_debug("dplane provider '%s': processing", | |
2775 | dplane_provider_get_name(prov)); | |
2776 | ||
2777 | limit = dplane_provider_get_work_limit(prov); | |
2778 | ||
2779 | for (counter = 0; counter < limit; counter++) { | |
2780 | ||
2781 | ctx = dplane_provider_dequeue_in_ctx(prov); | |
2782 | if (ctx == NULL) | |
2783 | break; | |
2784 | ||
cf363e1b MS |
2785 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) |
2786 | zlog_debug("dplane provider '%s': op %s", | |
2787 | dplane_provider_get_name(prov), | |
2788 | dplane_op2str(dplane_ctx_get_op(ctx))); | |
2789 | ||
c831033f MS |
2790 | dplane_ctx_set_status(ctx, ZEBRA_DPLANE_REQUEST_SUCCESS); |
2791 | ||
2792 | dplane_provider_enqueue_out_ctx(prov, ctx); | |
2793 | } | |
2794 | ||
c9d17fe8 MS |
2795 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) |
2796 | zlog_debug("dplane provider '%s': processed %d", | |
2797 | dplane_provider_get_name(prov), counter); | |
2798 | ||
c831033f MS |
2799 | /* Ensure that we'll run the work loop again if there's still |
2800 | * more work to do. | |
2801 | */ | |
2802 | if (counter >= limit) | |
2803 | dplane_provider_work_ready(); | |
2804 | ||
2805 | return 0; | |
2806 | } | |
2807 | ||
2808 | /* | |
2809 | * Test provider shutdown/fini callback | |
2810 | */ | |
2811 | static int test_dplane_shutdown_func(struct zebra_dplane_provider *prov, | |
2812 | bool early) | |
2813 | { | |
2814 | if (IS_ZEBRA_DEBUG_DPLANE) | |
2815 | zlog_debug("dplane provider '%s': %sshutdown", | |
2816 | dplane_provider_get_name(prov), | |
2817 | early ? "early " : ""); | |
2818 | ||
2819 | return 0; | |
2820 | } | |
e5a60d82 | 2821 | #endif /* DPLANE_TEST_PROVIDER */ |
c831033f MS |
2822 | |
2823 | /* | |
2824 | * Register default kernel provider | |
2825 | */ | |
2826 | static void dplane_provider_init(void) | |
2827 | { | |
2828 | int ret; | |
2829 | ||
2830 | ret = dplane_provider_register("Kernel", | |
2831 | DPLANE_PRIO_KERNEL, | |
1dd4ea8a | 2832 | DPLANE_PROV_FLAGS_DEFAULT, NULL, |
c831033f MS |
2833 | kernel_dplane_process_func, |
2834 | NULL, | |
1ff8a248 | 2835 | NULL, NULL); |
c831033f MS |
2836 | |
2837 | if (ret != AOK) | |
2838 | zlog_err("Unable to register kernel dplane provider: %d", | |
2839 | ret); | |
2840 | ||
e5a60d82 MS |
2841 | #if DPLANE_TEST_PROVIDER |
2842 | /* Optional test provider ... */ | |
c831033f MS |
2843 | ret = dplane_provider_register("Test", |
2844 | DPLANE_PRIO_PRE_KERNEL, | |
1dd4ea8a | 2845 | DPLANE_PROV_FLAGS_DEFAULT, NULL, |
c831033f MS |
2846 | test_dplane_process_func, |
2847 | test_dplane_shutdown_func, | |
1ff8a248 | 2848 | NULL /* data */, NULL); |
c831033f MS |
2849 | |
2850 | if (ret != AOK) | |
2851 | zlog_err("Unable to register test dplane provider: %d", | |
2852 | ret); | |
e5a60d82 | 2853 | #endif /* DPLANE_TEST_PROVIDER */ |
7cdb1a84 MS |
2854 | } |
2855 | ||
4dfd7a02 MS |
2856 | /* Indicates zebra shutdown/exit is in progress. Some operations may be |
2857 | * simplified or skipped during shutdown processing. | |
2858 | */ | |
2859 | bool dplane_is_in_shutdown(void) | |
2860 | { | |
25779064 | 2861 | return zdplane_info.dg_is_shutdown; |
4dfd7a02 MS |
2862 | } |
2863 | ||
2864 | /* | |
2865 | * Early or pre-shutdown, de-init notification api. This runs pretty | |
2866 | * early during zebra shutdown, as a signal to stop new work and prepare | |
2867 | * for updates generated by shutdown/cleanup activity, as zebra tries to | |
2868 | * remove everything it's responsible for. | |
c9d17fe8 | 2869 | * NB: This runs in the main zebra pthread context. |
4dfd7a02 MS |
2870 | */ |
2871 | void zebra_dplane_pre_finish(void) | |
2872 | { | |
2873 | if (IS_ZEBRA_DEBUG_DPLANE) | |
2874 | zlog_debug("Zebra dataplane pre-fini called"); | |
2875 | ||
25779064 | 2876 | zdplane_info.dg_is_shutdown = true; |
4dfd7a02 | 2877 | |
c9d17fe8 | 2878 | /* TODO -- Notify provider(s) of pending shutdown */ |
4dfd7a02 MS |
2879 | } |
2880 | ||
2881 | /* | |
2882 | * Utility to determine whether work remains enqueued within the dplane; | |
2883 | * used during system shutdown processing. | |
2884 | */ | |
2885 | static bool dplane_work_pending(void) | |
2886 | { | |
c9d17fe8 | 2887 | bool ret = false; |
25779064 | 2888 | struct zebra_dplane_ctx *ctx; |
c9d17fe8 | 2889 | struct zebra_dplane_provider *prov; |
4dfd7a02 | 2890 | |
c831033f MS |
2891 | /* TODO -- just checking incoming/pending work for now, must check |
2892 | * providers | |
2893 | */ | |
4dfd7a02 MS |
2894 | DPLANE_LOCK(); |
2895 | { | |
3fe4ccc4 | 2896 | ctx = TAILQ_FIRST(&zdplane_info.dg_update_ctx_q); |
c9d17fe8 | 2897 | prov = TAILQ_FIRST(&zdplane_info.dg_providers_q); |
4dfd7a02 MS |
2898 | } |
2899 | DPLANE_UNLOCK(); | |
2900 | ||
c9d17fe8 MS |
2901 | if (ctx != NULL) { |
2902 | ret = true; | |
2903 | goto done; | |
2904 | } | |
2905 | ||
2906 | while (prov) { | |
2907 | ||
ad6aad4d | 2908 | dplane_provider_lock(prov); |
c9d17fe8 MS |
2909 | |
2910 | ctx = TAILQ_FIRST(&(prov->dp_ctx_in_q)); | |
2911 | if (ctx == NULL) | |
2912 | ctx = TAILQ_FIRST(&(prov->dp_ctx_out_q)); | |
2913 | ||
ad6aad4d | 2914 | dplane_provider_unlock(prov); |
c9d17fe8 MS |
2915 | |
2916 | if (ctx != NULL) | |
2917 | break; | |
2918 | ||
2919 | DPLANE_LOCK(); | |
2920 | prov = TAILQ_NEXT(prov, dp_prov_link); | |
2921 | DPLANE_UNLOCK(); | |
2922 | } | |
2923 | ||
2924 | if (ctx != NULL) | |
2925 | ret = true; | |
2926 | ||
2927 | done: | |
2928 | return ret; | |
4dfd7a02 MS |
2929 | } |
2930 | ||
2931 | /* | |
2932 | * Shutdown-time intermediate callback, used to determine when all pending | |
2933 | * in-flight updates are done. If there's still work to do, reschedules itself. | |
2934 | * If all work is done, schedules an event to the main zebra thread for | |
2935 | * final zebra shutdown. | |
2936 | * This runs in the dplane pthread context. | |
2937 | */ | |
2938 | static int dplane_check_shutdown_status(struct thread *event) | |
2939 | { | |
2940 | if (IS_ZEBRA_DEBUG_DPLANE) | |
2941 | zlog_debug("Zebra dataplane shutdown status check called"); | |
2942 | ||
2943 | if (dplane_work_pending()) { | |
2944 | /* Reschedule dplane check on a short timer */ | |
25779064 | 2945 | thread_add_timer_msec(zdplane_info.dg_master, |
4dfd7a02 MS |
2946 | dplane_check_shutdown_status, |
2947 | NULL, 100, | |
25779064 | 2948 | &zdplane_info.dg_t_shutdown_check); |
4dfd7a02 MS |
2949 | |
2950 | /* TODO - give up and stop waiting after a short time? */ | |
2951 | ||
2952 | } else { | |
2953 | /* We appear to be done - schedule a final callback event | |
2954 | * for the zebra main pthread. | |
2955 | */ | |
3801e764 | 2956 | thread_add_event(zrouter.master, zebra_finalize, NULL, 0, NULL); |
4dfd7a02 MS |
2957 | } |
2958 | ||
2959 | return 0; | |
2960 | } | |
2961 | ||
18c37974 | 2962 | /* |
1d11b21f | 2963 | * Shutdown, de-init api. This runs pretty late during shutdown, |
4dfd7a02 MS |
2964 | * after zebra has tried to free/remove/uninstall all routes during shutdown. |
2965 | * At this point, dplane work may still remain to be done, so we can't just | |
2966 | * blindly terminate. If there's still work to do, we'll periodically check | |
2967 | * and when done, we'll enqueue a task to the zebra main thread for final | |
2968 | * termination processing. | |
2969 | * | |
1d11b21f | 2970 | * NB: This runs in the main zebra thread context. |
18c37974 | 2971 | */ |
1d11b21f | 2972 | void zebra_dplane_finish(void) |
18c37974 | 2973 | { |
4dfd7a02 MS |
2974 | if (IS_ZEBRA_DEBUG_DPLANE) |
2975 | zlog_debug("Zebra dataplane fini called"); | |
2976 | ||
25779064 | 2977 | thread_add_event(zdplane_info.dg_master, |
4dfd7a02 | 2978 | dplane_check_shutdown_status, NULL, 0, |
25779064 | 2979 | &zdplane_info.dg_t_shutdown_check); |
4dfd7a02 MS |
2980 | } |
2981 | ||
c831033f MS |
2982 | /* |
2983 | * Main dataplane pthread event loop. The thread takes new incoming work | |
2984 | * and offers it to the first provider. It then iterates through the | |
2985 | * providers, taking complete work from each one and offering it | |
2986 | * to the next in order. At each step, a limited number of updates are | |
2987 | * processed during a cycle in order to provide some fairness. | |
14b0bc8e MS |
2988 | * |
2989 | * This loop through the providers is only run once, so that the dataplane | |
2990 | * pthread can look for other pending work - such as i/o work on behalf of | |
2991 | * providers. | |
c831033f MS |
2992 | */ |
2993 | static int dplane_thread_loop(struct thread *event) | |
2994 | { | |
2995 | struct dplane_ctx_q work_list; | |
2996 | struct dplane_ctx_q error_list; | |
2997 | struct zebra_dplane_provider *prov; | |
2998 | struct zebra_dplane_ctx *ctx, *tctx; | |
2999 | int limit, counter, error_counter; | |
c9d17fe8 | 3000 | uint64_t curr, high; |
c831033f MS |
3001 | |
3002 | /* Capture work limit per cycle */ | |
3003 | limit = zdplane_info.dg_updates_per_cycle; | |
3004 | ||
14b0bc8e | 3005 | /* Init temporary lists used to move contexts among providers */ |
c831033f | 3006 | TAILQ_INIT(&work_list); |
14b0bc8e MS |
3007 | TAILQ_INIT(&error_list); |
3008 | error_counter = 0; | |
c831033f MS |
3009 | |
3010 | /* Check for zebra shutdown */ | |
3011 | if (!zdplane_info.dg_run) | |
3012 | goto done; | |
3013 | ||
3014 | /* Dequeue some incoming work from zebra (if any) onto the temporary | |
3015 | * working list. | |
3016 | */ | |
3017 | DPLANE_LOCK(); | |
3018 | ||
3019 | /* Locate initial registered provider */ | |
3020 | prov = TAILQ_FIRST(&zdplane_info.dg_providers_q); | |
3021 | ||
14b0bc8e | 3022 | /* Move new work from incoming list to temp list */ |
c831033f | 3023 | for (counter = 0; counter < limit; counter++) { |
3fe4ccc4 | 3024 | ctx = TAILQ_FIRST(&zdplane_info.dg_update_ctx_q); |
c831033f | 3025 | if (ctx) { |
3fe4ccc4 | 3026 | TAILQ_REMOVE(&zdplane_info.dg_update_ctx_q, ctx, |
c831033f MS |
3027 | zd_q_entries); |
3028 | ||
c831033f MS |
3029 | ctx->zd_provider = prov->dp_id; |
3030 | ||
3031 | TAILQ_INSERT_TAIL(&work_list, ctx, zd_q_entries); | |
3032 | } else { | |
3033 | break; | |
3034 | } | |
3035 | } | |
3036 | ||
3037 | DPLANE_UNLOCK(); | |
3038 | ||
14b0bc8e MS |
3039 | atomic_fetch_sub_explicit(&zdplane_info.dg_routes_queued, counter, |
3040 | memory_order_relaxed); | |
3041 | ||
c831033f MS |
3042 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) |
3043 | zlog_debug("dplane: incoming new work counter: %d", counter); | |
3044 | ||
3045 | /* Iterate through the registered providers, offering new incoming | |
3046 | * work. If the provider has outgoing work in its queue, take that | |
3047 | * work for the next provider | |
3048 | */ | |
3049 | while (prov) { | |
3050 | ||
14b0bc8e MS |
3051 | /* At each iteration, the temporary work list has 'counter' |
3052 | * items. | |
3053 | */ | |
c831033f MS |
3054 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) |
3055 | zlog_debug("dplane enqueues %d new work to provider '%s'", | |
3056 | counter, dplane_provider_get_name(prov)); | |
3057 | ||
3058 | /* Capture current provider id in each context; check for | |
3059 | * error status. | |
3060 | */ | |
3061 | TAILQ_FOREACH_SAFE(ctx, &work_list, zd_q_entries, tctx) { | |
3062 | if (dplane_ctx_get_status(ctx) == | |
3063 | ZEBRA_DPLANE_REQUEST_SUCCESS) { | |
3064 | ctx->zd_provider = prov->dp_id; | |
3065 | } else { | |
3066 | /* | |
3067 | * TODO -- improve error-handling: recirc | |
3068 | * errors backwards so that providers can | |
3069 | * 'undo' their work (if they want to) | |
3070 | */ | |
3071 | ||
3072 | /* Move to error list; will be returned | |
3073 | * zebra main. | |
3074 | */ | |
3075 | TAILQ_REMOVE(&work_list, ctx, zd_q_entries); | |
3076 | TAILQ_INSERT_TAIL(&error_list, | |
3077 | ctx, zd_q_entries); | |
3078 | error_counter++; | |
3079 | } | |
3080 | } | |
3081 | ||
3082 | /* Enqueue new work to the provider */ | |
ad6aad4d | 3083 | dplane_provider_lock(prov); |
c831033f MS |
3084 | |
3085 | if (TAILQ_FIRST(&work_list)) | |
3086 | TAILQ_CONCAT(&(prov->dp_ctx_in_q), &work_list, | |
3087 | zd_q_entries); | |
3088 | ||
c9d17fe8 MS |
3089 | atomic_fetch_add_explicit(&prov->dp_in_counter, counter, |
3090 | memory_order_relaxed); | |
3091 | atomic_fetch_add_explicit(&prov->dp_in_queued, counter, | |
3092 | memory_order_relaxed); | |
3093 | curr = atomic_load_explicit(&prov->dp_in_queued, | |
3094 | memory_order_relaxed); | |
3095 | high = atomic_load_explicit(&prov->dp_in_max, | |
3096 | memory_order_relaxed); | |
3097 | if (curr > high) | |
3098 | atomic_store_explicit(&prov->dp_in_max, curr, | |
c831033f MS |
3099 | memory_order_relaxed); |
3100 | ||
ad6aad4d | 3101 | dplane_provider_unlock(prov); |
c831033f | 3102 | |
14b0bc8e MS |
3103 | /* Reset the temp list (though the 'concat' may have done this |
3104 | * already), and the counter | |
3105 | */ | |
c831033f MS |
3106 | TAILQ_INIT(&work_list); |
3107 | counter = 0; | |
3108 | ||
14b0bc8e MS |
3109 | /* Call into the provider code. Note that this is |
3110 | * unconditional: we offer to do work even if we don't enqueue | |
3111 | * any _new_ work. | |
3112 | */ | |
c831033f MS |
3113 | (*prov->dp_fp)(prov); |
3114 | ||
3115 | /* Check for zebra shutdown */ | |
3116 | if (!zdplane_info.dg_run) | |
3117 | break; | |
3118 | ||
3119 | /* Dequeue completed work from the provider */ | |
ad6aad4d | 3120 | dplane_provider_lock(prov); |
c831033f MS |
3121 | |
3122 | while (counter < limit) { | |
3123 | ctx = TAILQ_FIRST(&(prov->dp_ctx_out_q)); | |
3124 | if (ctx) { | |
3125 | TAILQ_REMOVE(&(prov->dp_ctx_out_q), ctx, | |
3126 | zd_q_entries); | |
3127 | ||
3128 | TAILQ_INSERT_TAIL(&work_list, | |
3129 | ctx, zd_q_entries); | |
3130 | counter++; | |
3131 | } else | |
3132 | break; | |
3133 | } | |
3134 | ||
ad6aad4d | 3135 | dplane_provider_unlock(prov); |
c831033f MS |
3136 | |
3137 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) | |
3138 | zlog_debug("dplane dequeues %d completed work from provider %s", | |
3139 | counter, dplane_provider_get_name(prov)); | |
3140 | ||
3141 | /* Locate next provider */ | |
3142 | DPLANE_LOCK(); | |
3143 | prov = TAILQ_NEXT(prov, dp_prov_link); | |
3144 | DPLANE_UNLOCK(); | |
c831033f MS |
3145 | } |
3146 | ||
3147 | /* After all providers have been serviced, enqueue any completed | |
14b0bc8e | 3148 | * work and any errors back to zebra so it can process the results. |
c831033f | 3149 | */ |
c831033f | 3150 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) |
14b0bc8e MS |
3151 | zlog_debug("dplane has %d completed, %d errors, for zebra main", |
3152 | counter, error_counter); | |
c831033f MS |
3153 | |
3154 | /* | |
4c206c8f | 3155 | * Hand lists through the api to zebra main, |
c831033f MS |
3156 | * to reduce the number of lock/unlock cycles |
3157 | */ | |
14b0bc8e | 3158 | |
4c206c8f MS |
3159 | /* Call through to zebra main */ |
3160 | (zdplane_info.dg_results_cb)(&error_list); | |
14b0bc8e | 3161 | |
4c206c8f | 3162 | TAILQ_INIT(&error_list); |
14b0bc8e | 3163 | |
4c206c8f MS |
3164 | /* Call through to zebra main */ |
3165 | (zdplane_info.dg_results_cb)(&work_list); | |
c831033f | 3166 | |
4c206c8f | 3167 | TAILQ_INIT(&work_list); |
c831033f MS |
3168 | |
3169 | done: | |
3170 | return 0; | |
3171 | } | |
3172 | ||
4dfd7a02 MS |
3173 | /* |
3174 | * Final phase of shutdown, after all work enqueued to dplane has been | |
3175 | * processed. This is called from the zebra main pthread context. | |
3176 | */ | |
3177 | void zebra_dplane_shutdown(void) | |
3178 | { | |
3179 | if (IS_ZEBRA_DEBUG_DPLANE) | |
3180 | zlog_debug("Zebra dataplane shutdown called"); | |
1d11b21f MS |
3181 | |
3182 | /* Stop dplane thread, if it's running */ | |
3183 | ||
25779064 | 3184 | zdplane_info.dg_run = false; |
1d11b21f | 3185 | |
25779064 | 3186 | THREAD_OFF(zdplane_info.dg_t_update); |
1d11b21f | 3187 | |
d8c16a95 MS |
3188 | frr_pthread_stop(zdplane_info.dg_pthread, NULL); |
3189 | ||
3190 | /* Destroy pthread */ | |
3191 | frr_pthread_destroy(zdplane_info.dg_pthread); | |
3192 | zdplane_info.dg_pthread = NULL; | |
3193 | zdplane_info.dg_master = NULL; | |
4dfd7a02 | 3194 | |
c831033f MS |
3195 | /* TODO -- Notify provider(s) of final shutdown */ |
3196 | ||
3197 | /* TODO -- Clean-up provider objects */ | |
3198 | ||
3199 | /* TODO -- Clean queue(s), free memory */ | |
3200 | } | |
3201 | ||
3202 | /* | |
3203 | * Initialize the dataplane module during startup, internal/private version | |
3204 | */ | |
2561d12e | 3205 | static void zebra_dplane_init_internal(void) |
c831033f MS |
3206 | { |
3207 | memset(&zdplane_info, 0, sizeof(zdplane_info)); | |
3208 | ||
3209 | pthread_mutex_init(&zdplane_info.dg_mutex, NULL); | |
1d11b21f | 3210 | |
3fe4ccc4 | 3211 | TAILQ_INIT(&zdplane_info.dg_update_ctx_q); |
c831033f | 3212 | TAILQ_INIT(&zdplane_info.dg_providers_q); |
1d11b21f | 3213 | |
c831033f MS |
3214 | zdplane_info.dg_updates_per_cycle = DPLANE_DEFAULT_NEW_WORK; |
3215 | ||
3216 | zdplane_info.dg_max_queued_updates = DPLANE_DEFAULT_MAX_QUEUED; | |
3217 | ||
3218 | /* Register default kernel 'provider' during init */ | |
3219 | dplane_provider_init(); | |
e5a60d82 | 3220 | } |
c831033f | 3221 | |
e5a60d82 MS |
3222 | /* |
3223 | * Start the dataplane pthread. This step needs to be run later than the | |
3224 | * 'init' step, in case zebra has fork-ed. | |
3225 | */ | |
3226 | void zebra_dplane_start(void) | |
3227 | { | |
1dd4ea8a | 3228 | struct zebra_dplane_provider *prov; |
c831033f MS |
3229 | struct frr_pthread_attr pattr = { |
3230 | .start = frr_pthread_attr_default.start, | |
3231 | .stop = frr_pthread_attr_default.stop | |
3232 | }; | |
3233 | ||
1dd4ea8a MS |
3234 | /* Start dataplane pthread */ |
3235 | ||
c831033f | 3236 | zdplane_info.dg_pthread = frr_pthread_new(&pattr, "Zebra dplane thread", |
0eca319c | 3237 | "zebra_dplane"); |
c831033f MS |
3238 | |
3239 | zdplane_info.dg_master = zdplane_info.dg_pthread->master; | |
3240 | ||
e5a60d82 MS |
3241 | zdplane_info.dg_run = true; |
3242 | ||
c831033f MS |
3243 | /* Enqueue an initial event for the dataplane pthread */ |
3244 | thread_add_event(zdplane_info.dg_master, dplane_thread_loop, NULL, 0, | |
3245 | &zdplane_info.dg_t_update); | |
3246 | ||
1dd4ea8a MS |
3247 | /* Call start callbacks for registered providers */ |
3248 | ||
3249 | DPLANE_LOCK(); | |
3250 | prov = TAILQ_FIRST(&zdplane_info.dg_providers_q); | |
3251 | DPLANE_UNLOCK(); | |
3252 | ||
3253 | while (prov) { | |
3254 | ||
3255 | if (prov->dp_start) | |
3256 | (prov->dp_start)(prov); | |
3257 | ||
3258 | /* Locate next provider */ | |
3259 | DPLANE_LOCK(); | |
3260 | prov = TAILQ_NEXT(prov, dp_prov_link); | |
3261 | DPLANE_UNLOCK(); | |
3262 | } | |
3263 | ||
c831033f | 3264 | frr_pthread_run(zdplane_info.dg_pthread, NULL); |
18c37974 MS |
3265 | } |
3266 | ||
7cdb1a84 | 3267 | /* |
b8e0423d | 3268 | * Initialize the dataplane module at startup; called by zebra rib_init() |
7cdb1a84 | 3269 | */ |
4c206c8f | 3270 | void zebra_dplane_init(int (*results_fp)(struct dplane_ctx_q *)) |
7cdb1a84 | 3271 | { |
2561d12e | 3272 | zebra_dplane_init_internal(); |
4c206c8f | 3273 | zdplane_info.dg_results_cb = results_fp; |
7cdb1a84 | 3274 | } |