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Commit | Line | Data |
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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 | ||
0c8215cb SW |
69 | /* |
70 | * Nexthop information captured for nexthop/nexthop group updates | |
71 | */ | |
72 | struct dplane_nexthop_info { | |
73 | uint32_t id; | |
74 | afi_t afi; | |
75 | vrf_id_t vrf_id; | |
38e40db1 | 76 | int type; |
0c8215cb SW |
77 | |
78 | struct nexthop_group ng; | |
e22e8001 SW |
79 | struct nh_grp nh_grp[MULTIPATH_NUM]; |
80 | uint8_t nh_grp_count; | |
0c8215cb SW |
81 | }; |
82 | ||
7cdb1a84 | 83 | /* |
0f461727 | 84 | * Route information captured for route updates. |
7cdb1a84 | 85 | */ |
0f461727 | 86 | struct dplane_route_info { |
7cdb1a84 MS |
87 | |
88 | /* Dest and (optional) source prefixes */ | |
89 | struct prefix zd_dest; | |
90 | struct prefix zd_src; | |
91 | ||
0f461727 MS |
92 | afi_t zd_afi; |
93 | safi_t zd_safi; | |
7cdb1a84 MS |
94 | |
95 | int zd_type; | |
96 | int zd_old_type; | |
97 | ||
7cdb1a84 MS |
98 | route_tag_t zd_tag; |
99 | route_tag_t zd_old_tag; | |
100 | uint32_t zd_metric; | |
01ce7cba | 101 | uint32_t zd_old_metric; |
0f461727 | 102 | |
7cdb1a84 MS |
103 | uint16_t zd_instance; |
104 | uint16_t zd_old_instance; | |
105 | ||
106 | uint8_t zd_distance; | |
107 | uint8_t zd_old_distance; | |
108 | ||
109 | uint32_t zd_mtu; | |
110 | uint32_t zd_nexthop_mtu; | |
111 | ||
0c8215cb SW |
112 | /* Nexthop hash entry info */ |
113 | struct dplane_nexthop_info nhe; | |
f820d025 | 114 | |
7cdb1a84 MS |
115 | /* Nexthops */ |
116 | struct nexthop_group zd_ng; | |
117 | ||
4dfd7a02 | 118 | /* "Previous" nexthops, used only in route updates without netlink */ |
01ce7cba MS |
119 | struct nexthop_group zd_old_ng; |
120 | ||
b8e0423d MS |
121 | /* TODO -- use fixed array of nexthops, to avoid mallocs? */ |
122 | ||
0f461727 MS |
123 | }; |
124 | ||
d613b8e1 MS |
125 | /* |
126 | * Pseudowire info for the dataplane | |
127 | */ | |
128 | struct dplane_pw_info { | |
d613b8e1 MS |
129 | int type; |
130 | int af; | |
131 | int status; | |
132 | uint32_t flags; | |
16d69787 | 133 | union g_addr dest; |
d613b8e1 MS |
134 | mpls_label_t local_label; |
135 | mpls_label_t remote_label; | |
136 | ||
16d69787 MS |
137 | /* Nexthops */ |
138 | struct nexthop_group nhg; | |
139 | ||
d613b8e1 MS |
140 | union pw_protocol_fields fields; |
141 | }; | |
142 | ||
a4a4802a MS |
143 | /* |
144 | * Interface/prefix info for the dataplane | |
145 | */ | |
146 | struct dplane_intf_info { | |
147 | ||
a4a4802a MS |
148 | uint32_t metric; |
149 | uint32_t flags; | |
150 | ||
151 | #define DPLANE_INTF_CONNECTED (1 << 0) /* Connected peer, p2p */ | |
152 | #define DPLANE_INTF_SECONDARY (1 << 1) | |
64168803 | 153 | #define DPLANE_INTF_BROADCAST (1 << 2) |
0f3af738 | 154 | #define DPLANE_INTF_HAS_DEST DPLANE_INTF_CONNECTED |
64168803 | 155 | #define DPLANE_INTF_HAS_LABEL (1 << 4) |
a4a4802a MS |
156 | |
157 | /* Interface address/prefix */ | |
158 | struct prefix prefix; | |
159 | ||
160 | /* Dest address, for p2p, or broadcast prefix */ | |
161 | struct prefix dest_prefix; | |
162 | ||
163 | char *label; | |
164 | char label_buf[32]; | |
165 | }; | |
166 | ||
7597ac7b | 167 | /* |
0bbd4ff4 | 168 | * EVPN MAC address info for the dataplane. |
7597ac7b MS |
169 | */ |
170 | struct dplane_mac_info { | |
171 | vlanid_t vid; | |
478566d6 | 172 | ifindex_t br_ifindex; |
7597ac7b MS |
173 | struct ethaddr mac; |
174 | struct in_addr vtep_ip; | |
175 | bool is_sticky; | |
176 | ||
177 | }; | |
178 | ||
931fa60c MS |
179 | /* |
180 | * EVPN neighbor info for the dataplane | |
181 | */ | |
182 | struct dplane_neigh_info { | |
183 | struct ipaddr ip_addr; | |
184 | struct ethaddr mac; | |
185 | uint32_t flags; | |
186 | uint16_t state; | |
187 | }; | |
188 | ||
0f461727 MS |
189 | /* |
190 | * The context block used to exchange info about route updates across | |
191 | * the boundary between the zebra main context (and pthread) and the | |
192 | * dataplane layer (and pthread). | |
193 | */ | |
194 | struct zebra_dplane_ctx { | |
195 | ||
196 | /* Operation code */ | |
197 | enum dplane_op_e zd_op; | |
198 | ||
199 | /* Status on return */ | |
200 | enum zebra_dplane_result zd_status; | |
201 | ||
202 | /* Dplane provider id */ | |
203 | uint32_t zd_provider; | |
204 | ||
205 | /* Flags - used by providers, e.g. */ | |
206 | int zd_flags; | |
207 | ||
208 | bool zd_is_update; | |
209 | ||
210 | uint32_t zd_seq; | |
211 | uint32_t zd_old_seq; | |
212 | ||
0024a559 MS |
213 | /* Some updates may be generated by notifications: allow the |
214 | * plugin to notice and ignore results from its own notifications. | |
215 | */ | |
216 | uint32_t zd_notif_provider; | |
217 | ||
0f461727 MS |
218 | /* TODO -- internal/sub-operation status? */ |
219 | enum zebra_dplane_result zd_remote_status; | |
220 | enum zebra_dplane_result zd_kernel_status; | |
221 | ||
222 | vrf_id_t zd_vrf_id; | |
223 | uint32_t zd_table_id; | |
224 | ||
7c7ef4a8 MS |
225 | char zd_ifname[INTERFACE_NAMSIZ]; |
226 | ifindex_t zd_ifindex; | |
227 | ||
a4a4802a | 228 | /* Support info for different kinds of updates */ |
0f461727 MS |
229 | union { |
230 | struct dplane_route_info rinfo; | |
231 | zebra_lsp_t lsp; | |
d613b8e1 | 232 | struct dplane_pw_info pw; |
a4a4802a | 233 | struct dplane_intf_info intf; |
7597ac7b | 234 | struct dplane_mac_info macinfo; |
931fa60c | 235 | struct dplane_neigh_info neigh; |
0f461727 MS |
236 | } u; |
237 | ||
238 | /* Namespace info, used especially for netlink kernel communication */ | |
239 | struct zebra_dplane_info zd_ns_info; | |
240 | ||
7cdb1a84 | 241 | /* Embedded list linkage */ |
25779064 | 242 | TAILQ_ENTRY(zebra_dplane_ctx) zd_q_entries; |
7cdb1a84 MS |
243 | }; |
244 | ||
c831033f MS |
245 | /* Flag that can be set by a pre-kernel provider as a signal that an update |
246 | * should bypass the kernel. | |
247 | */ | |
248 | #define DPLANE_CTX_FLAG_NO_KERNEL 0x01 | |
249 | ||
250 | ||
7cdb1a84 MS |
251 | /* |
252 | * Registration block for one dataplane provider. | |
253 | */ | |
25779064 | 254 | struct zebra_dplane_provider { |
7cdb1a84 MS |
255 | /* Name */ |
256 | char dp_name[DPLANE_PROVIDER_NAMELEN + 1]; | |
257 | ||
258 | /* Priority, for ordering among providers */ | |
259 | uint8_t dp_priority; | |
260 | ||
261 | /* Id value */ | |
262 | uint32_t dp_id; | |
263 | ||
c831033f MS |
264 | /* Mutex */ |
265 | pthread_mutex_t dp_mutex; | |
266 | ||
267 | /* Plugin-provided extra data */ | |
268 | void *dp_data; | |
269 | ||
270 | /* Flags */ | |
271 | int dp_flags; | |
272 | ||
1dd4ea8a MS |
273 | int (*dp_start)(struct zebra_dplane_provider *prov); |
274 | ||
4c206c8f | 275 | int (*dp_fp)(struct zebra_dplane_provider *prov); |
7cdb1a84 | 276 | |
4c206c8f | 277 | int (*dp_fini)(struct zebra_dplane_provider *prov, bool early_p); |
18c37974 | 278 | |
0545c373 | 279 | _Atomic uint32_t dp_in_counter; |
c9d17fe8 | 280 | _Atomic uint32_t dp_in_queued; |
c831033f MS |
281 | _Atomic uint32_t dp_in_max; |
282 | _Atomic uint32_t dp_out_counter; | |
c9d17fe8 | 283 | _Atomic uint32_t dp_out_queued; |
c831033f | 284 | _Atomic uint32_t dp_out_max; |
0545c373 | 285 | _Atomic uint32_t dp_error_counter; |
1d11b21f | 286 | |
c831033f MS |
287 | /* Queue of contexts inbound to the provider */ |
288 | struct dplane_ctx_q dp_ctx_in_q; | |
289 | ||
290 | /* Queue of completed contexts outbound from the provider back | |
291 | * towards the dataplane module. | |
292 | */ | |
293 | struct dplane_ctx_q dp_ctx_out_q; | |
7cdb1a84 | 294 | |
c831033f MS |
295 | /* Embedded list linkage for provider objects */ |
296 | TAILQ_ENTRY(zebra_dplane_provider) dp_prov_link; | |
7cdb1a84 MS |
297 | }; |
298 | ||
299 | /* | |
300 | * Globals | |
301 | */ | |
25779064 | 302 | static struct zebra_dplane_globals { |
7cdb1a84 MS |
303 | /* Mutex to control access to dataplane components */ |
304 | pthread_mutex_t dg_mutex; | |
305 | ||
306 | /* Results callback registered by zebra 'core' */ | |
4c206c8f | 307 | int (*dg_results_cb)(struct dplane_ctx_q *ctxlist); |
7cdb1a84 | 308 | |
4dfd7a02 MS |
309 | /* Sentinel for beginning of shutdown */ |
310 | volatile bool dg_is_shutdown; | |
311 | ||
312 | /* Sentinel for end of shutdown */ | |
1d11b21f MS |
313 | volatile bool dg_run; |
314 | ||
3fe4ccc4 MS |
315 | /* Update context queue inbound to the dataplane */ |
316 | TAILQ_HEAD(zdg_ctx_q, zebra_dplane_ctx) dg_update_ctx_q; | |
7cdb1a84 MS |
317 | |
318 | /* Ordered list of providers */ | |
25779064 | 319 | TAILQ_HEAD(zdg_prov_q, zebra_dplane_provider) dg_providers_q; |
7cdb1a84 | 320 | |
1d11b21f | 321 | /* Counter used to assign internal ids to providers */ |
b8e0423d MS |
322 | uint32_t dg_provider_id; |
323 | ||
91f16812 MS |
324 | /* Limit number of pending, unprocessed updates */ |
325 | _Atomic uint32_t dg_max_queued_updates; | |
326 | ||
cf363e1b MS |
327 | /* Control whether system route notifications should be produced. */ |
328 | bool dg_sys_route_notifs; | |
329 | ||
c831033f MS |
330 | /* Limit number of new updates dequeued at once, to pace an |
331 | * incoming burst. | |
332 | */ | |
333 | uint32_t dg_updates_per_cycle; | |
334 | ||
0545c373 | 335 | _Atomic uint32_t dg_routes_in; |
1d11b21f | 336 | _Atomic uint32_t dg_routes_queued; |
4dfd7a02 | 337 | _Atomic uint32_t dg_routes_queued_max; |
0545c373 | 338 | _Atomic uint32_t dg_route_errors; |
16c628de MS |
339 | _Atomic uint32_t dg_other_errors; |
340 | ||
f820d025 SW |
341 | _Atomic uint32_t dg_nexthops_in; |
342 | _Atomic uint32_t dg_nexthop_errors; | |
343 | ||
16c628de | 344 | _Atomic uint32_t dg_lsps_in; |
16c628de MS |
345 | _Atomic uint32_t dg_lsp_errors; |
346 | ||
97d8d05a MS |
347 | _Atomic uint32_t dg_pws_in; |
348 | _Atomic uint32_t dg_pw_errors; | |
349 | ||
64168803 MS |
350 | _Atomic uint32_t dg_intf_addrs_in; |
351 | _Atomic uint32_t dg_intf_addr_errors; | |
352 | ||
7597ac7b MS |
353 | _Atomic uint32_t dg_macs_in; |
354 | _Atomic uint32_t dg_mac_errors; | |
355 | ||
931fa60c MS |
356 | _Atomic uint32_t dg_neighs_in; |
357 | _Atomic uint32_t dg_neigh_errors; | |
358 | ||
c831033f | 359 | _Atomic uint32_t dg_update_yields; |
1d11b21f | 360 | |
d8c16a95 MS |
361 | /* Dataplane pthread */ |
362 | struct frr_pthread *dg_pthread; | |
363 | ||
7cdb1a84 MS |
364 | /* Event-delivery context 'master' for the dplane */ |
365 | struct thread_master *dg_master; | |
366 | ||
367 | /* Event/'thread' pointer for queued updates */ | |
368 | struct thread *dg_t_update; | |
369 | ||
4dfd7a02 MS |
370 | /* Event pointer for pending shutdown check loop */ |
371 | struct thread *dg_t_shutdown_check; | |
372 | ||
25779064 | 373 | } zdplane_info; |
7cdb1a84 MS |
374 | |
375 | /* | |
c831033f | 376 | * Lock and unlock for interactions with the zebra 'core' pthread |
7cdb1a84 | 377 | */ |
25779064 | 378 | #define DPLANE_LOCK() pthread_mutex_lock(&zdplane_info.dg_mutex) |
25779064 | 379 | #define DPLANE_UNLOCK() pthread_mutex_unlock(&zdplane_info.dg_mutex) |
7cdb1a84 | 380 | |
c831033f MS |
381 | |
382 | /* | |
383 | * Lock and unlock for individual providers | |
384 | */ | |
385 | #define DPLANE_PROV_LOCK(p) pthread_mutex_lock(&((p)->dp_mutex)) | |
386 | #define DPLANE_PROV_UNLOCK(p) pthread_mutex_unlock(&((p)->dp_mutex)) | |
387 | ||
7cdb1a84 | 388 | /* Prototypes */ |
c831033f | 389 | static int dplane_thread_loop(struct thread *event); |
62b8bb7a MS |
390 | static void dplane_info_from_zns(struct zebra_dplane_info *ns_info, |
391 | struct zebra_ns *zns); | |
16c628de MS |
392 | static enum zebra_dplane_result lsp_update_internal(zebra_lsp_t *lsp, |
393 | enum dplane_op_e op); | |
97d8d05a MS |
394 | static enum zebra_dplane_result pw_update_internal(struct zebra_pw *pw, |
395 | enum dplane_op_e op); | |
64168803 MS |
396 | static enum zebra_dplane_result intf_addr_update_internal( |
397 | const struct interface *ifp, const struct connected *ifc, | |
398 | enum dplane_op_e op); | |
7597ac7b MS |
399 | static enum zebra_dplane_result mac_update_internal( |
400 | enum dplane_op_e op, const struct interface *ifp, | |
478566d6 | 401 | const struct interface *br_ifp, |
7597ac7b MS |
402 | vlanid_t vid, const struct ethaddr *mac, |
403 | struct in_addr vtep_ip, bool sticky); | |
931fa60c MS |
404 | static enum zebra_dplane_result neigh_update_internal( |
405 | enum dplane_op_e op, | |
406 | const struct interface *ifp, | |
407 | const struct ethaddr *mac, | |
408 | const struct ipaddr *ip, | |
409 | uint32_t flags, uint16_t state); | |
7cdb1a84 MS |
410 | |
411 | /* | |
412 | * Public APIs | |
413 | */ | |
414 | ||
ad6aad4d MS |
415 | /* Obtain thread_master for dataplane thread */ |
416 | struct thread_master *dplane_get_thread_master(void) | |
417 | { | |
418 | return zdplane_info.dg_master; | |
419 | } | |
420 | ||
7cdb1a84 | 421 | /* |
b8e0423d | 422 | * Allocate a dataplane update context |
7cdb1a84 | 423 | */ |
593e4eb1 | 424 | struct zebra_dplane_ctx *dplane_ctx_alloc(void) |
7cdb1a84 | 425 | { |
25779064 | 426 | struct zebra_dplane_ctx *p; |
7cdb1a84 | 427 | |
b8e0423d MS |
428 | /* TODO -- just alloc'ing memory, but would like to maintain |
429 | * a pool | |
430 | */ | |
25779064 | 431 | p = XCALLOC(MTYPE_DP_CTX, sizeof(struct zebra_dplane_ctx)); |
7cdb1a84 | 432 | |
5709131c | 433 | return p; |
7cdb1a84 MS |
434 | } |
435 | ||
cf363e1b MS |
436 | /* Enable system route notifications */ |
437 | void dplane_enable_sys_route_notifs(void) | |
438 | { | |
439 | zdplane_info.dg_sys_route_notifs = true; | |
440 | } | |
441 | ||
7cdb1a84 | 442 | /* |
b8e0423d | 443 | * Free a dataplane results context. |
7cdb1a84 | 444 | */ |
25779064 | 445 | static void dplane_ctx_free(struct zebra_dplane_ctx **pctx) |
7cdb1a84 | 446 | { |
16c628de MS |
447 | if (pctx == NULL) |
448 | return; | |
7cdb1a84 | 449 | |
16c628de MS |
450 | DPLANE_CTX_VALID(*pctx); |
451 | ||
452 | /* TODO -- just freeing memory, but would like to maintain | |
453 | * a pool | |
454 | */ | |
455 | ||
456 | /* Some internal allocations may need to be freed, depending on | |
457 | * the type of info captured in the ctx. | |
458 | */ | |
459 | switch ((*pctx)->zd_op) { | |
460 | case DPLANE_OP_ROUTE_INSTALL: | |
461 | case DPLANE_OP_ROUTE_UPDATE: | |
462 | case DPLANE_OP_ROUTE_DELETE: | |
cf363e1b MS |
463 | case DPLANE_OP_SYS_ROUTE_ADD: |
464 | case DPLANE_OP_SYS_ROUTE_DELETE: | |
54818e3b | 465 | case DPLANE_OP_ROUTE_NOTIFY: |
b8e0423d | 466 | |
16c628de | 467 | /* Free allocated nexthops */ |
0f461727 | 468 | if ((*pctx)->u.rinfo.zd_ng.nexthop) { |
7cdb1a84 | 469 | /* This deals with recursive nexthops too */ |
0f461727 | 470 | nexthops_free((*pctx)->u.rinfo.zd_ng.nexthop); |
16c628de MS |
471 | |
472 | (*pctx)->u.rinfo.zd_ng.nexthop = NULL; | |
7cdb1a84 MS |
473 | } |
474 | ||
0f461727 | 475 | if ((*pctx)->u.rinfo.zd_old_ng.nexthop) { |
4dfd7a02 | 476 | /* This deals with recursive nexthops too */ |
0f461727 | 477 | nexthops_free((*pctx)->u.rinfo.zd_old_ng.nexthop); |
16c628de MS |
478 | |
479 | (*pctx)->u.rinfo.zd_old_ng.nexthop = NULL; | |
480 | } | |
481 | ||
482 | break; | |
483 | ||
f820d025 SW |
484 | case DPLANE_OP_NH_INSTALL: |
485 | case DPLANE_OP_NH_UPDATE: | |
486 | case DPLANE_OP_NH_DELETE: { | |
0c8215cb SW |
487 | if ((*pctx)->u.rinfo.nhe.ng.nexthop) { |
488 | /* This deals with recursive nexthops too */ | |
489 | nexthops_free((*pctx)->u.rinfo.nhe.ng.nexthop); | |
490 | ||
491 | (*pctx)->u.rinfo.nhe.ng.nexthop = NULL; | |
492 | } | |
f820d025 SW |
493 | break; |
494 | } | |
495 | ||
16c628de MS |
496 | case DPLANE_OP_LSP_INSTALL: |
497 | case DPLANE_OP_LSP_UPDATE: | |
498 | case DPLANE_OP_LSP_DELETE: | |
104e3ad9 | 499 | case DPLANE_OP_LSP_NOTIFY: |
16c628de MS |
500 | { |
501 | zebra_nhlfe_t *nhlfe, *next; | |
502 | ||
503 | /* Free allocated NHLFEs */ | |
504 | for (nhlfe = (*pctx)->u.lsp.nhlfe_list; nhlfe; nhlfe = next) { | |
505 | next = nhlfe->next; | |
506 | ||
507 | zebra_mpls_nhlfe_del(nhlfe); | |
01ce7cba MS |
508 | } |
509 | ||
16c628de MS |
510 | /* Clear pointers in lsp struct, in case we're cacheing |
511 | * free context structs. | |
512 | */ | |
513 | (*pctx)->u.lsp.nhlfe_list = NULL; | |
514 | (*pctx)->u.lsp.best_nhlfe = NULL; | |
515 | ||
516 | break; | |
517 | } | |
518 | ||
97d8d05a MS |
519 | case DPLANE_OP_PW_INSTALL: |
520 | case DPLANE_OP_PW_UNINSTALL: | |
16d69787 MS |
521 | /* Free allocated nexthops */ |
522 | if ((*pctx)->u.pw.nhg.nexthop) { | |
523 | /* This deals with recursive nexthops too */ | |
524 | nexthops_free((*pctx)->u.pw.nhg.nexthop); | |
525 | ||
526 | (*pctx)->u.pw.nhg.nexthop = NULL; | |
527 | } | |
528 | break; | |
529 | ||
a4a4802a MS |
530 | case DPLANE_OP_ADDR_INSTALL: |
531 | case DPLANE_OP_ADDR_UNINSTALL: | |
64168803 MS |
532 | /* Maybe free label string, if allocated */ |
533 | if ((*pctx)->u.intf.label != NULL && | |
534 | (*pctx)->u.intf.label != (*pctx)->u.intf.label_buf) { | |
535 | free((*pctx)->u.intf.label); | |
536 | (*pctx)->u.intf.label = NULL; | |
537 | } | |
538 | break; | |
539 | ||
7597ac7b MS |
540 | case DPLANE_OP_MAC_INSTALL: |
541 | case DPLANE_OP_MAC_DELETE: | |
f2412b2d | 542 | case DPLANE_OP_NEIGH_INSTALL: |
931fa60c | 543 | case DPLANE_OP_NEIGH_UPDATE: |
f2412b2d | 544 | case DPLANE_OP_NEIGH_DELETE: |
0bbd4ff4 MS |
545 | case DPLANE_OP_VTEP_ADD: |
546 | case DPLANE_OP_VTEP_DELETE: | |
16c628de MS |
547 | case DPLANE_OP_NONE: |
548 | break; | |
7cdb1a84 | 549 | } |
16c628de MS |
550 | |
551 | XFREE(MTYPE_DP_CTX, *pctx); | |
7cdb1a84 MS |
552 | } |
553 | ||
554 | /* | |
555 | * Return a context block to the dplane module after processing | |
556 | */ | |
25779064 | 557 | void dplane_ctx_fini(struct zebra_dplane_ctx **pctx) |
7cdb1a84 | 558 | { |
14b0bc8e | 559 | /* TODO -- maintain pool; for now, just free */ |
7cdb1a84 MS |
560 | dplane_ctx_free(pctx); |
561 | } | |
562 | ||
563 | /* Enqueue a context block */ | |
25779064 MS |
564 | void dplane_ctx_enqueue_tail(struct dplane_ctx_q *q, |
565 | const struct zebra_dplane_ctx *ctx) | |
7cdb1a84 | 566 | { |
25779064 | 567 | TAILQ_INSERT_TAIL(q, (struct zebra_dplane_ctx *)ctx, zd_q_entries); |
7cdb1a84 MS |
568 | } |
569 | ||
14b0bc8e MS |
570 | /* Append a list of context blocks to another list */ |
571 | void dplane_ctx_list_append(struct dplane_ctx_q *to_list, | |
572 | struct dplane_ctx_q *from_list) | |
573 | { | |
574 | if (TAILQ_FIRST(from_list)) { | |
575 | TAILQ_CONCAT(to_list, from_list, zd_q_entries); | |
576 | ||
577 | /* And clear 'from' list */ | |
578 | TAILQ_INIT(from_list); | |
579 | } | |
580 | } | |
581 | ||
7cdb1a84 | 582 | /* Dequeue a context block from the head of a list */ |
68b375e0 | 583 | struct zebra_dplane_ctx *dplane_ctx_dequeue(struct dplane_ctx_q *q) |
7cdb1a84 | 584 | { |
25779064 | 585 | struct zebra_dplane_ctx *ctx = TAILQ_FIRST(q); |
5709131c MS |
586 | |
587 | if (ctx) | |
7cdb1a84 | 588 | TAILQ_REMOVE(q, ctx, zd_q_entries); |
7cdb1a84 | 589 | |
68b375e0 | 590 | return ctx; |
7cdb1a84 MS |
591 | } |
592 | ||
593 | /* | |
594 | * Accessors for information from the context object | |
595 | */ | |
25779064 MS |
596 | enum zebra_dplane_result dplane_ctx_get_status( |
597 | const struct zebra_dplane_ctx *ctx) | |
7cdb1a84 MS |
598 | { |
599 | DPLANE_CTX_VALID(ctx); | |
600 | ||
5709131c | 601 | return ctx->zd_status; |
7cdb1a84 MS |
602 | } |
603 | ||
c831033f MS |
604 | void dplane_ctx_set_status(struct zebra_dplane_ctx *ctx, |
605 | enum zebra_dplane_result status) | |
606 | { | |
607 | DPLANE_CTX_VALID(ctx); | |
608 | ||
609 | ctx->zd_status = status; | |
610 | } | |
611 | ||
612 | /* Retrieve last/current provider id */ | |
613 | uint32_t dplane_ctx_get_provider(const struct zebra_dplane_ctx *ctx) | |
614 | { | |
615 | DPLANE_CTX_VALID(ctx); | |
616 | return ctx->zd_provider; | |
617 | } | |
618 | ||
619 | /* Providers run before the kernel can control whether a kernel | |
620 | * update should be done. | |
621 | */ | |
622 | void dplane_ctx_set_skip_kernel(struct zebra_dplane_ctx *ctx) | |
623 | { | |
624 | DPLANE_CTX_VALID(ctx); | |
625 | ||
626 | SET_FLAG(ctx->zd_flags, DPLANE_CTX_FLAG_NO_KERNEL); | |
627 | } | |
628 | ||
629 | bool dplane_ctx_is_skip_kernel(const struct zebra_dplane_ctx *ctx) | |
630 | { | |
631 | DPLANE_CTX_VALID(ctx); | |
632 | ||
633 | return CHECK_FLAG(ctx->zd_flags, DPLANE_CTX_FLAG_NO_KERNEL); | |
634 | } | |
635 | ||
593e4eb1 MS |
636 | void dplane_ctx_set_op(struct zebra_dplane_ctx *ctx, enum dplane_op_e op) |
637 | { | |
638 | DPLANE_CTX_VALID(ctx); | |
639 | ctx->zd_op = op; | |
640 | } | |
641 | ||
25779064 | 642 | enum dplane_op_e dplane_ctx_get_op(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
643 | { |
644 | DPLANE_CTX_VALID(ctx); | |
645 | ||
5709131c | 646 | return ctx->zd_op; |
7cdb1a84 MS |
647 | } |
648 | ||
5709131c | 649 | const char *dplane_op2str(enum dplane_op_e op) |
7cdb1a84 MS |
650 | { |
651 | const char *ret = "UNKNOWN"; | |
652 | ||
5709131c | 653 | switch (op) { |
7cdb1a84 MS |
654 | case DPLANE_OP_NONE: |
655 | ret = "NONE"; | |
656 | break; | |
657 | ||
658 | /* Route update */ | |
659 | case DPLANE_OP_ROUTE_INSTALL: | |
660 | ret = "ROUTE_INSTALL"; | |
661 | break; | |
662 | case DPLANE_OP_ROUTE_UPDATE: | |
663 | ret = "ROUTE_UPDATE"; | |
664 | break; | |
665 | case DPLANE_OP_ROUTE_DELETE: | |
666 | ret = "ROUTE_DELETE"; | |
667 | break; | |
54818e3b MS |
668 | case DPLANE_OP_ROUTE_NOTIFY: |
669 | ret = "ROUTE_NOTIFY"; | |
670 | break; | |
7cdb1a84 | 671 | |
f820d025 SW |
672 | /* Nexthop update */ |
673 | case DPLANE_OP_NH_INSTALL: | |
674 | ret = "NH_INSTALL"; | |
675 | break; | |
676 | case DPLANE_OP_NH_UPDATE: | |
677 | ret = "NH_UPDATE"; | |
678 | break; | |
679 | case DPLANE_OP_NH_DELETE: | |
680 | ret = "NH_DELETE"; | |
681 | break; | |
682 | ||
16c628de MS |
683 | case DPLANE_OP_LSP_INSTALL: |
684 | ret = "LSP_INSTALL"; | |
685 | break; | |
686 | case DPLANE_OP_LSP_UPDATE: | |
687 | ret = "LSP_UPDATE"; | |
688 | break; | |
689 | case DPLANE_OP_LSP_DELETE: | |
690 | ret = "LSP_DELETE"; | |
691 | break; | |
104e3ad9 MS |
692 | case DPLANE_OP_LSP_NOTIFY: |
693 | ret = "LSP_NOTIFY"; | |
694 | break; | |
16c628de | 695 | |
97d8d05a MS |
696 | case DPLANE_OP_PW_INSTALL: |
697 | ret = "PW_INSTALL"; | |
698 | break; | |
699 | case DPLANE_OP_PW_UNINSTALL: | |
700 | ret = "PW_UNINSTALL"; | |
701 | break; | |
702 | ||
cf363e1b MS |
703 | case DPLANE_OP_SYS_ROUTE_ADD: |
704 | ret = "SYS_ROUTE_ADD"; | |
705 | break; | |
706 | case DPLANE_OP_SYS_ROUTE_DELETE: | |
707 | ret = "SYS_ROUTE_DEL"; | |
708 | break; | |
a4a4802a MS |
709 | |
710 | case DPLANE_OP_ADDR_INSTALL: | |
711 | ret = "ADDR_INSTALL"; | |
712 | break; | |
713 | case DPLANE_OP_ADDR_UNINSTALL: | |
714 | ret = "ADDR_UNINSTALL"; | |
715 | break; | |
716 | ||
7597ac7b MS |
717 | case DPLANE_OP_MAC_INSTALL: |
718 | ret = "MAC_INSTALL"; | |
719 | break; | |
720 | case DPLANE_OP_MAC_DELETE: | |
721 | ret = "MAC_DELETE"; | |
722 | break; | |
f2412b2d MS |
723 | |
724 | case DPLANE_OP_NEIGH_INSTALL: | |
725 | ret = "NEIGH_INSTALL"; | |
726 | break; | |
931fa60c MS |
727 | case DPLANE_OP_NEIGH_UPDATE: |
728 | ret = "NEIGH_UPDATE"; | |
729 | break; | |
f2412b2d MS |
730 | case DPLANE_OP_NEIGH_DELETE: |
731 | ret = "NEIGH_DELETE"; | |
732 | break; | |
0bbd4ff4 MS |
733 | case DPLANE_OP_VTEP_ADD: |
734 | ret = "VTEP_ADD"; | |
735 | break; | |
736 | case DPLANE_OP_VTEP_DELETE: | |
737 | ret = "VTEP_DELETE"; | |
738 | break; | |
5b94ec50 | 739 | } |
7cdb1a84 | 740 | |
5709131c | 741 | return ret; |
7cdb1a84 MS |
742 | } |
743 | ||
f183e380 MS |
744 | const char *dplane_res2str(enum zebra_dplane_result res) |
745 | { | |
746 | const char *ret = "<Unknown>"; | |
747 | ||
748 | switch (res) { | |
749 | case ZEBRA_DPLANE_REQUEST_FAILURE: | |
750 | ret = "FAILURE"; | |
751 | break; | |
752 | case ZEBRA_DPLANE_REQUEST_QUEUED: | |
753 | ret = "QUEUED"; | |
754 | break; | |
755 | case ZEBRA_DPLANE_REQUEST_SUCCESS: | |
756 | ret = "SUCCESS"; | |
757 | break; | |
5b94ec50 | 758 | } |
f183e380 MS |
759 | |
760 | return ret; | |
761 | } | |
762 | ||
593e4eb1 MS |
763 | void dplane_ctx_set_dest(struct zebra_dplane_ctx *ctx, |
764 | const struct prefix *dest) | |
765 | { | |
766 | DPLANE_CTX_VALID(ctx); | |
767 | ||
768 | prefix_copy(&(ctx->u.rinfo.zd_dest), dest); | |
769 | } | |
770 | ||
25779064 | 771 | const struct prefix *dplane_ctx_get_dest(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
772 | { |
773 | DPLANE_CTX_VALID(ctx); | |
774 | ||
0f461727 | 775 | return &(ctx->u.rinfo.zd_dest); |
7cdb1a84 MS |
776 | } |
777 | ||
593e4eb1 MS |
778 | void dplane_ctx_set_src(struct zebra_dplane_ctx *ctx, const struct prefix *src) |
779 | { | |
780 | DPLANE_CTX_VALID(ctx); | |
781 | ||
782 | if (src) | |
783 | prefix_copy(&(ctx->u.rinfo.zd_src), src); | |
784 | else | |
785 | memset(&(ctx->u.rinfo.zd_src), 0, sizeof(struct prefix)); | |
786 | } | |
787 | ||
5709131c | 788 | /* Source prefix is a little special - return NULL for "no src prefix" */ |
25779064 | 789 | const struct prefix *dplane_ctx_get_src(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
790 | { |
791 | DPLANE_CTX_VALID(ctx); | |
792 | ||
0f461727 MS |
793 | if (ctx->u.rinfo.zd_src.prefixlen == 0 && |
794 | IN6_IS_ADDR_UNSPECIFIED(&(ctx->u.rinfo.zd_src.u.prefix6))) { | |
5709131c | 795 | return NULL; |
7cdb1a84 | 796 | } else { |
0f461727 | 797 | return &(ctx->u.rinfo.zd_src); |
7cdb1a84 MS |
798 | } |
799 | } | |
800 | ||
25779064 | 801 | bool dplane_ctx_is_update(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
802 | { |
803 | DPLANE_CTX_VALID(ctx); | |
804 | ||
5709131c | 805 | return ctx->zd_is_update; |
7cdb1a84 MS |
806 | } |
807 | ||
25779064 | 808 | uint32_t dplane_ctx_get_seq(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
809 | { |
810 | DPLANE_CTX_VALID(ctx); | |
811 | ||
5709131c | 812 | return ctx->zd_seq; |
7cdb1a84 MS |
813 | } |
814 | ||
25779064 | 815 | uint32_t dplane_ctx_get_old_seq(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
816 | { |
817 | DPLANE_CTX_VALID(ctx); | |
818 | ||
5709131c | 819 | return ctx->zd_old_seq; |
7cdb1a84 MS |
820 | } |
821 | ||
593e4eb1 MS |
822 | void dplane_ctx_set_vrf(struct zebra_dplane_ctx *ctx, vrf_id_t vrf) |
823 | { | |
824 | DPLANE_CTX_VALID(ctx); | |
825 | ||
826 | ctx->zd_vrf_id = vrf; | |
827 | } | |
828 | ||
25779064 | 829 | vrf_id_t dplane_ctx_get_vrf(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
830 | { |
831 | DPLANE_CTX_VALID(ctx); | |
832 | ||
5709131c | 833 | return ctx->zd_vrf_id; |
7cdb1a84 MS |
834 | } |
835 | ||
0024a559 MS |
836 | bool dplane_ctx_is_from_notif(const struct zebra_dplane_ctx *ctx) |
837 | { | |
838 | DPLANE_CTX_VALID(ctx); | |
839 | ||
840 | return (ctx->zd_notif_provider != 0); | |
841 | } | |
842 | ||
843 | uint32_t dplane_ctx_get_notif_provider(const struct zebra_dplane_ctx *ctx) | |
844 | { | |
845 | DPLANE_CTX_VALID(ctx); | |
846 | ||
847 | return ctx->zd_notif_provider; | |
848 | } | |
849 | ||
9651af61 MS |
850 | void dplane_ctx_set_notif_provider(struct zebra_dplane_ctx *ctx, |
851 | uint32_t id) | |
852 | { | |
853 | DPLANE_CTX_VALID(ctx); | |
854 | ||
855 | ctx->zd_notif_provider = id; | |
856 | } | |
7c7ef4a8 MS |
857 | const char *dplane_ctx_get_ifname(const struct zebra_dplane_ctx *ctx) |
858 | { | |
859 | DPLANE_CTX_VALID(ctx); | |
860 | ||
861 | return ctx->zd_ifname; | |
862 | } | |
863 | ||
864 | ifindex_t dplane_ctx_get_ifindex(const struct zebra_dplane_ctx *ctx) | |
865 | { | |
866 | DPLANE_CTX_VALID(ctx); | |
867 | ||
868 | return ctx->zd_ifindex; | |
869 | } | |
9651af61 | 870 | |
593e4eb1 MS |
871 | void dplane_ctx_set_type(struct zebra_dplane_ctx *ctx, int type) |
872 | { | |
873 | DPLANE_CTX_VALID(ctx); | |
874 | ||
875 | ctx->u.rinfo.zd_type = type; | |
876 | } | |
877 | ||
25779064 | 878 | int dplane_ctx_get_type(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
879 | { |
880 | DPLANE_CTX_VALID(ctx); | |
881 | ||
0f461727 | 882 | return ctx->u.rinfo.zd_type; |
7cdb1a84 MS |
883 | } |
884 | ||
25779064 | 885 | int dplane_ctx_get_old_type(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
886 | { |
887 | DPLANE_CTX_VALID(ctx); | |
888 | ||
0f461727 | 889 | return ctx->u.rinfo.zd_old_type; |
7cdb1a84 MS |
890 | } |
891 | ||
593e4eb1 MS |
892 | void dplane_ctx_set_afi(struct zebra_dplane_ctx *ctx, afi_t afi) |
893 | { | |
894 | DPLANE_CTX_VALID(ctx); | |
895 | ||
896 | ctx->u.rinfo.zd_afi = afi; | |
897 | } | |
898 | ||
25779064 | 899 | afi_t dplane_ctx_get_afi(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
900 | { |
901 | DPLANE_CTX_VALID(ctx); | |
902 | ||
0f461727 | 903 | return ctx->u.rinfo.zd_afi; |
7cdb1a84 MS |
904 | } |
905 | ||
593e4eb1 MS |
906 | void dplane_ctx_set_safi(struct zebra_dplane_ctx *ctx, safi_t safi) |
907 | { | |
908 | DPLANE_CTX_VALID(ctx); | |
909 | ||
910 | ctx->u.rinfo.zd_safi = safi; | |
911 | } | |
912 | ||
25779064 | 913 | safi_t dplane_ctx_get_safi(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
914 | { |
915 | DPLANE_CTX_VALID(ctx); | |
916 | ||
0f461727 | 917 | return ctx->u.rinfo.zd_safi; |
7cdb1a84 MS |
918 | } |
919 | ||
593e4eb1 MS |
920 | void dplane_ctx_set_table(struct zebra_dplane_ctx *ctx, uint32_t table) |
921 | { | |
922 | DPLANE_CTX_VALID(ctx); | |
923 | ||
924 | ctx->zd_table_id = table; | |
925 | } | |
926 | ||
25779064 | 927 | uint32_t dplane_ctx_get_table(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
928 | { |
929 | DPLANE_CTX_VALID(ctx); | |
930 | ||
5709131c | 931 | return ctx->zd_table_id; |
7cdb1a84 MS |
932 | } |
933 | ||
25779064 | 934 | route_tag_t dplane_ctx_get_tag(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
935 | { |
936 | DPLANE_CTX_VALID(ctx); | |
937 | ||
0f461727 | 938 | return ctx->u.rinfo.zd_tag; |
7cdb1a84 MS |
939 | } |
940 | ||
6a91ae98 MS |
941 | void dplane_ctx_set_tag(struct zebra_dplane_ctx *ctx, route_tag_t tag) |
942 | { | |
943 | DPLANE_CTX_VALID(ctx); | |
944 | ||
945 | ctx->u.rinfo.zd_tag = tag; | |
946 | } | |
947 | ||
25779064 | 948 | route_tag_t dplane_ctx_get_old_tag(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
949 | { |
950 | DPLANE_CTX_VALID(ctx); | |
951 | ||
0f461727 | 952 | return ctx->u.rinfo.zd_old_tag; |
7cdb1a84 MS |
953 | } |
954 | ||
25779064 | 955 | uint16_t dplane_ctx_get_instance(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
956 | { |
957 | DPLANE_CTX_VALID(ctx); | |
958 | ||
0f461727 | 959 | return ctx->u.rinfo.zd_instance; |
7cdb1a84 MS |
960 | } |
961 | ||
6a91ae98 MS |
962 | void dplane_ctx_set_instance(struct zebra_dplane_ctx *ctx, uint16_t instance) |
963 | { | |
964 | DPLANE_CTX_VALID(ctx); | |
965 | ||
966 | ctx->u.rinfo.zd_instance = instance; | |
967 | } | |
968 | ||
25779064 | 969 | uint16_t dplane_ctx_get_old_instance(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
970 | { |
971 | DPLANE_CTX_VALID(ctx); | |
972 | ||
0f461727 | 973 | return ctx->u.rinfo.zd_old_instance; |
7cdb1a84 MS |
974 | } |
975 | ||
25779064 | 976 | uint32_t dplane_ctx_get_metric(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
977 | { |
978 | DPLANE_CTX_VALID(ctx); | |
979 | ||
0f461727 | 980 | return ctx->u.rinfo.zd_metric; |
7cdb1a84 MS |
981 | } |
982 | ||
25779064 | 983 | uint32_t dplane_ctx_get_old_metric(const struct zebra_dplane_ctx *ctx) |
01ce7cba MS |
984 | { |
985 | DPLANE_CTX_VALID(ctx); | |
986 | ||
0f461727 | 987 | return ctx->u.rinfo.zd_old_metric; |
01ce7cba MS |
988 | } |
989 | ||
25779064 | 990 | uint32_t dplane_ctx_get_mtu(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
991 | { |
992 | DPLANE_CTX_VALID(ctx); | |
993 | ||
0f461727 | 994 | return ctx->u.rinfo.zd_mtu; |
7cdb1a84 MS |
995 | } |
996 | ||
25779064 | 997 | uint32_t dplane_ctx_get_nh_mtu(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
998 | { |
999 | DPLANE_CTX_VALID(ctx); | |
1000 | ||
0f461727 | 1001 | return ctx->u.rinfo.zd_nexthop_mtu; |
7cdb1a84 MS |
1002 | } |
1003 | ||
25779064 | 1004 | uint8_t dplane_ctx_get_distance(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
1005 | { |
1006 | DPLANE_CTX_VALID(ctx); | |
1007 | ||
0f461727 | 1008 | return ctx->u.rinfo.zd_distance; |
7cdb1a84 MS |
1009 | } |
1010 | ||
6a91ae98 MS |
1011 | void dplane_ctx_set_distance(struct zebra_dplane_ctx *ctx, uint8_t distance) |
1012 | { | |
1013 | DPLANE_CTX_VALID(ctx); | |
1014 | ||
1015 | ctx->u.rinfo.zd_distance = distance; | |
1016 | } | |
1017 | ||
25779064 | 1018 | uint8_t dplane_ctx_get_old_distance(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
1019 | { |
1020 | DPLANE_CTX_VALID(ctx); | |
1021 | ||
0f461727 | 1022 | return ctx->u.rinfo.zd_old_distance; |
7cdb1a84 MS |
1023 | } |
1024 | ||
e1f3a8eb MS |
1025 | /* |
1026 | * Set the nexthops associated with a context: note that processing code | |
1027 | * may well expect that nexthops are in canonical (sorted) order, so we | |
1028 | * will enforce that here. | |
1029 | */ | |
593e4eb1 MS |
1030 | void dplane_ctx_set_nexthops(struct zebra_dplane_ctx *ctx, struct nexthop *nh) |
1031 | { | |
1032 | DPLANE_CTX_VALID(ctx); | |
1033 | ||
1034 | if (ctx->u.rinfo.zd_ng.nexthop) { | |
1035 | nexthops_free(ctx->u.rinfo.zd_ng.nexthop); | |
1036 | ctx->u.rinfo.zd_ng.nexthop = NULL; | |
1037 | } | |
e1f3a8eb | 1038 | nexthop_group_copy_nh_sorted(&(ctx->u.rinfo.zd_ng), nh); |
593e4eb1 MS |
1039 | } |
1040 | ||
25779064 MS |
1041 | const struct nexthop_group *dplane_ctx_get_ng( |
1042 | const struct zebra_dplane_ctx *ctx) | |
7cdb1a84 MS |
1043 | { |
1044 | DPLANE_CTX_VALID(ctx); | |
1045 | ||
0f461727 | 1046 | return &(ctx->u.rinfo.zd_ng); |
7cdb1a84 MS |
1047 | } |
1048 | ||
25779064 MS |
1049 | const struct nexthop_group *dplane_ctx_get_old_ng( |
1050 | const struct zebra_dplane_ctx *ctx) | |
01ce7cba MS |
1051 | { |
1052 | DPLANE_CTX_VALID(ctx); | |
1053 | ||
0f461727 | 1054 | return &(ctx->u.rinfo.zd_old_ng); |
01ce7cba MS |
1055 | } |
1056 | ||
25779064 MS |
1057 | const struct zebra_dplane_info *dplane_ctx_get_ns( |
1058 | const struct zebra_dplane_ctx *ctx) | |
7cdb1a84 MS |
1059 | { |
1060 | DPLANE_CTX_VALID(ctx); | |
1061 | ||
5709131c | 1062 | return &(ctx->zd_ns_info); |
7cdb1a84 MS |
1063 | } |
1064 | ||
f820d025 | 1065 | /* Accessors for nexthop information */ |
0c8215cb SW |
1066 | uint32_t dplane_ctx_get_nhe_id(const struct zebra_dplane_ctx *ctx) |
1067 | { | |
1068 | DPLANE_CTX_VALID(ctx); | |
1069 | return ctx->u.rinfo.nhe.id; | |
1070 | } | |
1071 | ||
1072 | afi_t dplane_ctx_get_nhe_afi(const struct zebra_dplane_ctx *ctx) | |
1073 | { | |
1074 | DPLANE_CTX_VALID(ctx); | |
1075 | return ctx->u.rinfo.nhe.afi; | |
1076 | } | |
1077 | ||
1078 | vrf_id_t dplane_ctx_get_nhe_vrf_id(const struct zebra_dplane_ctx *ctx) | |
f820d025 SW |
1079 | { |
1080 | DPLANE_CTX_VALID(ctx); | |
0c8215cb SW |
1081 | return ctx->u.rinfo.nhe.vrf_id; |
1082 | } | |
1083 | ||
38e40db1 | 1084 | int dplane_ctx_get_nhe_type(const struct zebra_dplane_ctx *ctx) |
0c8215cb SW |
1085 | { |
1086 | DPLANE_CTX_VALID(ctx); | |
38e40db1 | 1087 | return ctx->u.rinfo.nhe.type; |
0c8215cb SW |
1088 | } |
1089 | ||
1090 | const struct nexthop_group * | |
1091 | dplane_ctx_get_nhe_ng(const struct zebra_dplane_ctx *ctx) | |
1092 | { | |
1093 | DPLANE_CTX_VALID(ctx); | |
1094 | return &(ctx->u.rinfo.nhe.ng); | |
1095 | } | |
1096 | ||
e22e8001 SW |
1097 | const struct nh_grp * |
1098 | dplane_ctx_get_nhe_nh_grp(const struct zebra_dplane_ctx *ctx) | |
0c8215cb SW |
1099 | { |
1100 | DPLANE_CTX_VALID(ctx); | |
e22e8001 | 1101 | return ctx->u.rinfo.nhe.nh_grp; |
0c8215cb SW |
1102 | } |
1103 | ||
e22e8001 | 1104 | uint8_t dplane_ctx_get_nhe_nh_grp_count(const struct zebra_dplane_ctx *ctx) |
0c8215cb SW |
1105 | { |
1106 | DPLANE_CTX_VALID(ctx); | |
e22e8001 | 1107 | return ctx->u.rinfo.nhe.nh_grp_count; |
f820d025 SW |
1108 | } |
1109 | ||
0f461727 MS |
1110 | /* Accessors for LSP information */ |
1111 | ||
1112 | mpls_label_t dplane_ctx_get_in_label(const struct zebra_dplane_ctx *ctx) | |
1113 | { | |
1114 | DPLANE_CTX_VALID(ctx); | |
1115 | ||
1116 | return ctx->u.lsp.ile.in_label; | |
1117 | } | |
1118 | ||
3ab54059 MS |
1119 | void dplane_ctx_set_in_label(struct zebra_dplane_ctx *ctx, mpls_label_t label) |
1120 | { | |
1121 | DPLANE_CTX_VALID(ctx); | |
1122 | ||
1123 | ctx->u.lsp.ile.in_label = label; | |
1124 | } | |
1125 | ||
0f461727 MS |
1126 | uint8_t dplane_ctx_get_addr_family(const struct zebra_dplane_ctx *ctx) |
1127 | { | |
1128 | DPLANE_CTX_VALID(ctx); | |
1129 | ||
1130 | return ctx->u.lsp.addr_family; | |
1131 | } | |
1132 | ||
3ab54059 MS |
1133 | void dplane_ctx_set_addr_family(struct zebra_dplane_ctx *ctx, |
1134 | uint8_t family) | |
1135 | { | |
1136 | DPLANE_CTX_VALID(ctx); | |
1137 | ||
1138 | ctx->u.lsp.addr_family = family; | |
1139 | } | |
1140 | ||
0f461727 MS |
1141 | uint32_t dplane_ctx_get_lsp_flags(const struct zebra_dplane_ctx *ctx) |
1142 | { | |
1143 | DPLANE_CTX_VALID(ctx); | |
1144 | ||
1145 | return ctx->u.lsp.flags; | |
1146 | } | |
1147 | ||
3ab54059 MS |
1148 | void dplane_ctx_set_lsp_flags(struct zebra_dplane_ctx *ctx, |
1149 | uint32_t flags) | |
1150 | { | |
1151 | DPLANE_CTX_VALID(ctx); | |
1152 | ||
1153 | ctx->u.lsp.flags = flags; | |
1154 | } | |
1155 | ||
81793ac1 | 1156 | const zebra_nhlfe_t *dplane_ctx_get_nhlfe(const struct zebra_dplane_ctx *ctx) |
0f461727 MS |
1157 | { |
1158 | DPLANE_CTX_VALID(ctx); | |
1159 | ||
1160 | return ctx->u.lsp.nhlfe_list; | |
1161 | } | |
1162 | ||
3ab54059 MS |
1163 | zebra_nhlfe_t *dplane_ctx_add_nhlfe(struct zebra_dplane_ctx *ctx, |
1164 | enum lsp_types_t lsp_type, | |
1165 | enum nexthop_types_t nh_type, | |
1166 | union g_addr *gate, | |
1167 | ifindex_t ifindex, | |
5065db0a RW |
1168 | uint8_t num_labels, |
1169 | mpls_label_t out_labels[]) | |
3ab54059 MS |
1170 | { |
1171 | zebra_nhlfe_t *nhlfe; | |
1172 | ||
1173 | DPLANE_CTX_VALID(ctx); | |
1174 | ||
1175 | nhlfe = zebra_mpls_lsp_add_nhlfe(&(ctx->u.lsp), | |
1176 | lsp_type, nh_type, gate, | |
5065db0a | 1177 | ifindex, num_labels, out_labels); |
3ab54059 MS |
1178 | |
1179 | return nhlfe; | |
1180 | } | |
1181 | ||
81793ac1 MS |
1182 | const zebra_nhlfe_t * |
1183 | dplane_ctx_get_best_nhlfe(const struct zebra_dplane_ctx *ctx) | |
0f461727 MS |
1184 | { |
1185 | DPLANE_CTX_VALID(ctx); | |
1186 | ||
1187 | return ctx->u.lsp.best_nhlfe; | |
1188 | } | |
1189 | ||
3ab54059 MS |
1190 | const zebra_nhlfe_t * |
1191 | dplane_ctx_set_best_nhlfe(struct zebra_dplane_ctx *ctx, | |
1192 | zebra_nhlfe_t *nhlfe) | |
1193 | { | |
1194 | DPLANE_CTX_VALID(ctx); | |
1195 | ||
1196 | ctx->u.lsp.best_nhlfe = nhlfe; | |
1197 | return ctx->u.lsp.best_nhlfe; | |
1198 | } | |
1199 | ||
0f461727 MS |
1200 | uint32_t dplane_ctx_get_lsp_num_ecmp(const struct zebra_dplane_ctx *ctx) |
1201 | { | |
1202 | DPLANE_CTX_VALID(ctx); | |
1203 | ||
1204 | return ctx->u.lsp.num_ecmp; | |
1205 | } | |
1206 | ||
d613b8e1 MS |
1207 | mpls_label_t dplane_ctx_get_pw_local_label(const struct zebra_dplane_ctx *ctx) |
1208 | { | |
1209 | DPLANE_CTX_VALID(ctx); | |
1210 | ||
1211 | return ctx->u.pw.local_label; | |
1212 | } | |
1213 | ||
1214 | mpls_label_t dplane_ctx_get_pw_remote_label(const struct zebra_dplane_ctx *ctx) | |
1215 | { | |
1216 | DPLANE_CTX_VALID(ctx); | |
1217 | ||
1218 | return ctx->u.pw.remote_label; | |
1219 | } | |
1220 | ||
1221 | int dplane_ctx_get_pw_type(const struct zebra_dplane_ctx *ctx) | |
1222 | { | |
1223 | DPLANE_CTX_VALID(ctx); | |
1224 | ||
1225 | return ctx->u.pw.type; | |
1226 | } | |
1227 | ||
1228 | int dplane_ctx_get_pw_af(const struct zebra_dplane_ctx *ctx) | |
1229 | { | |
1230 | DPLANE_CTX_VALID(ctx); | |
1231 | ||
1232 | return ctx->u.pw.af; | |
1233 | } | |
1234 | ||
1235 | uint32_t dplane_ctx_get_pw_flags(const struct zebra_dplane_ctx *ctx) | |
1236 | { | |
1237 | DPLANE_CTX_VALID(ctx); | |
1238 | ||
1239 | return ctx->u.pw.flags; | |
1240 | } | |
1241 | ||
1242 | int dplane_ctx_get_pw_status(const struct zebra_dplane_ctx *ctx) | |
1243 | { | |
1244 | DPLANE_CTX_VALID(ctx); | |
1245 | ||
1246 | return ctx->u.pw.status; | |
1247 | } | |
1248 | ||
16d69787 | 1249 | const union g_addr *dplane_ctx_get_pw_dest( |
d613b8e1 MS |
1250 | const struct zebra_dplane_ctx *ctx) |
1251 | { | |
1252 | DPLANE_CTX_VALID(ctx); | |
1253 | ||
16d69787 | 1254 | return &(ctx->u.pw.dest); |
d613b8e1 MS |
1255 | } |
1256 | ||
1257 | const union pw_protocol_fields *dplane_ctx_get_pw_proto( | |
1258 | const struct zebra_dplane_ctx *ctx) | |
1259 | { | |
1260 | DPLANE_CTX_VALID(ctx); | |
1261 | ||
1262 | return &(ctx->u.pw.fields); | |
1263 | } | |
1264 | ||
09cd307c MS |
1265 | const struct nexthop_group * |
1266 | dplane_ctx_get_pw_nhg(const struct zebra_dplane_ctx *ctx) | |
1267 | { | |
1268 | DPLANE_CTX_VALID(ctx); | |
1269 | ||
1270 | return &(ctx->u.pw.nhg); | |
1271 | } | |
1272 | ||
a4a4802a | 1273 | /* Accessors for interface information */ |
a4a4802a MS |
1274 | uint32_t dplane_ctx_get_intf_metric(const struct zebra_dplane_ctx *ctx) |
1275 | { | |
1276 | DPLANE_CTX_VALID(ctx); | |
1277 | ||
1278 | return ctx->u.intf.metric; | |
1279 | } | |
1280 | ||
1281 | /* Is interface addr p2p? */ | |
1282 | bool dplane_ctx_intf_is_connected(const struct zebra_dplane_ctx *ctx) | |
1283 | { | |
1284 | DPLANE_CTX_VALID(ctx); | |
1285 | ||
1286 | return (ctx->u.intf.flags & DPLANE_INTF_CONNECTED); | |
1287 | } | |
1288 | ||
1289 | bool dplane_ctx_intf_is_secondary(const struct zebra_dplane_ctx *ctx) | |
1290 | { | |
1291 | DPLANE_CTX_VALID(ctx); | |
1292 | ||
1293 | return (ctx->u.intf.flags & DPLANE_INTF_SECONDARY); | |
1294 | } | |
1295 | ||
64168803 MS |
1296 | bool dplane_ctx_intf_is_broadcast(const struct zebra_dplane_ctx *ctx) |
1297 | { | |
1298 | DPLANE_CTX_VALID(ctx); | |
1299 | ||
1300 | return (ctx->u.intf.flags & DPLANE_INTF_BROADCAST); | |
1301 | } | |
1302 | ||
a4a4802a MS |
1303 | const struct prefix *dplane_ctx_get_intf_addr( |
1304 | const struct zebra_dplane_ctx *ctx) | |
1305 | { | |
1306 | DPLANE_CTX_VALID(ctx); | |
1307 | ||
1308 | return &(ctx->u.intf.prefix); | |
1309 | } | |
1310 | ||
1311 | bool dplane_ctx_intf_has_dest(const struct zebra_dplane_ctx *ctx) | |
1312 | { | |
1313 | DPLANE_CTX_VALID(ctx); | |
1314 | ||
1315 | return (ctx->u.intf.flags & DPLANE_INTF_HAS_DEST); | |
1316 | } | |
1317 | ||
1318 | const struct prefix *dplane_ctx_get_intf_dest( | |
1319 | const struct zebra_dplane_ctx *ctx) | |
1320 | { | |
1321 | DPLANE_CTX_VALID(ctx); | |
1322 | ||
1323 | if (ctx->u.intf.flags & DPLANE_INTF_HAS_DEST) | |
1324 | return &(ctx->u.intf.dest_prefix); | |
1325 | else | |
1326 | return NULL; | |
1327 | } | |
1328 | ||
1329 | bool dplane_ctx_intf_has_label(const struct zebra_dplane_ctx *ctx) | |
1330 | { | |
1331 | DPLANE_CTX_VALID(ctx); | |
1332 | ||
1333 | return (ctx->u.intf.flags & DPLANE_INTF_HAS_LABEL); | |
1334 | } | |
1335 | ||
1336 | const char *dplane_ctx_get_intf_label(const struct zebra_dplane_ctx *ctx) | |
1337 | { | |
1338 | DPLANE_CTX_VALID(ctx); | |
1339 | ||
1340 | return ctx->u.intf.label; | |
1341 | } | |
1342 | ||
7597ac7b MS |
1343 | /* Accessors for MAC information */ |
1344 | vlanid_t dplane_ctx_mac_get_vlan(const struct zebra_dplane_ctx *ctx) | |
1345 | { | |
1346 | DPLANE_CTX_VALID(ctx); | |
1347 | return ctx->u.macinfo.vid; | |
1348 | } | |
1349 | ||
1350 | bool dplane_ctx_mac_is_sticky(const struct zebra_dplane_ctx *ctx) | |
1351 | { | |
1352 | DPLANE_CTX_VALID(ctx); | |
1353 | return ctx->u.macinfo.is_sticky; | |
1354 | } | |
1355 | ||
1356 | const struct ethaddr *dplane_ctx_mac_get_addr( | |
1357 | const struct zebra_dplane_ctx *ctx) | |
1358 | { | |
1359 | DPLANE_CTX_VALID(ctx); | |
1360 | return &(ctx->u.macinfo.mac); | |
1361 | } | |
1362 | ||
1363 | const struct in_addr *dplane_ctx_mac_get_vtep_ip( | |
1364 | const struct zebra_dplane_ctx *ctx) | |
1365 | { | |
1366 | DPLANE_CTX_VALID(ctx); | |
1367 | return &(ctx->u.macinfo.vtep_ip); | |
1368 | } | |
1369 | ||
478566d6 MS |
1370 | ifindex_t dplane_ctx_mac_get_br_ifindex(const struct zebra_dplane_ctx *ctx) |
1371 | { | |
1372 | DPLANE_CTX_VALID(ctx); | |
1373 | return ctx->u.macinfo.br_ifindex; | |
1374 | } | |
1375 | ||
931fa60c MS |
1376 | /* Accessors for neighbor information */ |
1377 | const struct ipaddr *dplane_ctx_neigh_get_ipaddr( | |
1378 | const struct zebra_dplane_ctx *ctx) | |
1379 | { | |
1380 | DPLANE_CTX_VALID(ctx); | |
1381 | return &(ctx->u.neigh.ip_addr); | |
1382 | } | |
1383 | ||
1384 | const struct ethaddr *dplane_ctx_neigh_get_mac( | |
1385 | const struct zebra_dplane_ctx *ctx) | |
1386 | { | |
1387 | DPLANE_CTX_VALID(ctx); | |
1388 | return &(ctx->u.neigh.mac); | |
1389 | } | |
1390 | ||
1391 | uint32_t dplane_ctx_neigh_get_flags(const struct zebra_dplane_ctx *ctx) | |
1392 | { | |
1393 | DPLANE_CTX_VALID(ctx); | |
1394 | return ctx->u.neigh.flags; | |
1395 | } | |
1396 | ||
1397 | uint16_t dplane_ctx_neigh_get_state(const struct zebra_dplane_ctx *ctx) | |
1398 | { | |
1399 | DPLANE_CTX_VALID(ctx); | |
1400 | return ctx->u.neigh.state; | |
1401 | } | |
1402 | ||
7cdb1a84 MS |
1403 | /* |
1404 | * End of dplane context accessors | |
1405 | */ | |
1406 | ||
c831033f | 1407 | |
91f16812 MS |
1408 | /* |
1409 | * Retrieve the limit on the number of pending, unprocessed updates. | |
1410 | */ | |
1411 | uint32_t dplane_get_in_queue_limit(void) | |
1412 | { | |
1413 | return atomic_load_explicit(&zdplane_info.dg_max_queued_updates, | |
1414 | memory_order_relaxed); | |
1415 | } | |
1416 | ||
1417 | /* | |
1418 | * Configure limit on the number of pending, queued updates. | |
1419 | */ | |
1420 | void dplane_set_in_queue_limit(uint32_t limit, bool set) | |
1421 | { | |
1422 | /* Reset to default on 'unset' */ | |
1423 | if (!set) | |
1424 | limit = DPLANE_DEFAULT_MAX_QUEUED; | |
1425 | ||
1426 | atomic_store_explicit(&zdplane_info.dg_max_queued_updates, limit, | |
1427 | memory_order_relaxed); | |
1428 | } | |
1429 | ||
1430 | /* | |
1431 | * Retrieve the current queue depth of incoming, unprocessed updates | |
1432 | */ | |
1433 | uint32_t dplane_get_in_queue_len(void) | |
1434 | { | |
1435 | return atomic_load_explicit(&zdplane_info.dg_routes_queued, | |
1436 | memory_order_seq_cst); | |
1437 | } | |
1438 | ||
16c628de MS |
1439 | /* |
1440 | * Common dataplane context init with zebra namespace info. | |
1441 | */ | |
1442 | static int dplane_ctx_ns_init(struct zebra_dplane_ctx *ctx, | |
1443 | struct zebra_ns *zns, | |
1444 | bool is_update) | |
1445 | { | |
1446 | dplane_info_from_zns(&(ctx->zd_ns_info), zns); | |
1447 | ||
1448 | #if defined(HAVE_NETLINK) | |
1449 | /* Increment message counter after copying to context struct - may need | |
1450 | * two messages in some 'update' cases. | |
1451 | */ | |
1452 | if (is_update) | |
1453 | zns->netlink_dplane.seq += 2; | |
1454 | else | |
1455 | zns->netlink_dplane.seq++; | |
1456 | #endif /* HAVE_NETLINK */ | |
1457 | ||
1458 | return AOK; | |
1459 | } | |
1460 | ||
7cdb1a84 MS |
1461 | /* |
1462 | * Initialize a context block for a route update from zebra data structs. | |
1463 | */ | |
25779064 | 1464 | static int dplane_ctx_route_init(struct zebra_dplane_ctx *ctx, |
5709131c | 1465 | enum dplane_op_e op, |
7cdb1a84 MS |
1466 | struct route_node *rn, |
1467 | struct route_entry *re) | |
1468 | { | |
1469 | int ret = EINVAL; | |
1470 | const struct route_table *table = NULL; | |
1471 | const rib_table_info_t *info; | |
1472 | const struct prefix *p, *src_p; | |
1473 | struct zebra_ns *zns; | |
1474 | struct zebra_vrf *zvrf; | |
f183e380 | 1475 | struct nexthop *nexthop; |
7cdb1a84 | 1476 | |
5709131c | 1477 | if (!ctx || !rn || !re) |
7cdb1a84 | 1478 | goto done; |
7cdb1a84 MS |
1479 | |
1480 | ctx->zd_op = op; | |
14b0bc8e | 1481 | ctx->zd_status = ZEBRA_DPLANE_REQUEST_SUCCESS; |
7cdb1a84 | 1482 | |
0f461727 MS |
1483 | ctx->u.rinfo.zd_type = re->type; |
1484 | ctx->u.rinfo.zd_old_type = re->type; | |
7cdb1a84 MS |
1485 | |
1486 | /* Prefixes: dest, and optional source */ | |
1487 | srcdest_rnode_prefixes(rn, &p, &src_p); | |
1488 | ||
0f461727 | 1489 | prefix_copy(&(ctx->u.rinfo.zd_dest), p); |
7cdb1a84 | 1490 | |
5709131c | 1491 | if (src_p) |
0f461727 | 1492 | prefix_copy(&(ctx->u.rinfo.zd_src), src_p); |
5709131c | 1493 | else |
0f461727 | 1494 | memset(&(ctx->u.rinfo.zd_src), 0, sizeof(ctx->u.rinfo.zd_src)); |
7cdb1a84 MS |
1495 | |
1496 | ctx->zd_table_id = re->table; | |
1497 | ||
0f461727 MS |
1498 | ctx->u.rinfo.zd_metric = re->metric; |
1499 | ctx->u.rinfo.zd_old_metric = re->metric; | |
7cdb1a84 | 1500 | ctx->zd_vrf_id = re->vrf_id; |
0f461727 MS |
1501 | ctx->u.rinfo.zd_mtu = re->mtu; |
1502 | ctx->u.rinfo.zd_nexthop_mtu = re->nexthop_mtu; | |
1503 | ctx->u.rinfo.zd_instance = re->instance; | |
1504 | ctx->u.rinfo.zd_tag = re->tag; | |
1505 | ctx->u.rinfo.zd_old_tag = re->tag; | |
1506 | ctx->u.rinfo.zd_distance = re->distance; | |
7cdb1a84 MS |
1507 | |
1508 | table = srcdest_rnode_table(rn); | |
1509 | info = table->info; | |
1510 | ||
0f461727 MS |
1511 | ctx->u.rinfo.zd_afi = info->afi; |
1512 | ctx->u.rinfo.zd_safi = info->safi; | |
7cdb1a84 | 1513 | |
7cdb1a84 | 1514 | /* Copy nexthops; recursive info is included too */ |
0eb97b86 | 1515 | copy_nexthops(&(ctx->u.rinfo.zd_ng.nexthop), |
c415d895 | 1516 | re->nhe->nhg.nexthop, NULL); |
7cdb1a84 | 1517 | |
c415d895 | 1518 | /* Ensure that the dplane nexthops' flags are clear. */ |
0f461727 | 1519 | for (ALL_NEXTHOPS(ctx->u.rinfo.zd_ng, nexthop)) |
f183e380 | 1520 | UNSET_FLAG(nexthop->flags, NEXTHOP_FLAG_FIB); |
f183e380 | 1521 | |
cf363e1b MS |
1522 | /* Don't need some info when capturing a system notification */ |
1523 | if (op == DPLANE_OP_SYS_ROUTE_ADD || | |
1524 | op == DPLANE_OP_SYS_ROUTE_DELETE) { | |
1525 | ret = AOK; | |
1526 | goto done; | |
1527 | } | |
1528 | ||
1529 | /* Extract ns info - can't use pointers to 'core' structs */ | |
1530 | zvrf = vrf_info_lookup(re->vrf_id); | |
1531 | zns = zvrf->zns; | |
1532 | dplane_ctx_ns_init(ctx, zns, (op == DPLANE_OP_ROUTE_UPDATE)); | |
1533 | ||
6df59152 | 1534 | #ifdef HAVE_NETLINK |
81505946 | 1535 | if (re->nhe_id) { |
ae9bfa06 SW |
1536 | struct nhg_hash_entry *nhe = |
1537 | zebra_nhg_resolve(zebra_nhg_lookup_id(re->nhe_id)); | |
6df59152 | 1538 | |
ae9bfa06 | 1539 | ctx->u.rinfo.nhe.id = nhe->id; |
6df59152 | 1540 | /* |
ae9bfa06 SW |
1541 | * Check if the nhe is installed/queued before doing anything |
1542 | * with this route. | |
08c51a38 SW |
1543 | * |
1544 | * If its a delete we only use the prefix anyway, so this only | |
1545 | * matters for INSTALL/UPDATE. | |
6df59152 | 1546 | */ |
08c51a38 SW |
1547 | if (((op == DPLANE_OP_ROUTE_INSTALL) |
1548 | || (op == DPLANE_OP_ROUTE_UPDATE)) | |
1549 | && !CHECK_FLAG(nhe->flags, NEXTHOP_GROUP_INSTALLED) | |
ae9bfa06 | 1550 | && !CHECK_FLAG(nhe->flags, NEXTHOP_GROUP_QUEUED)) { |
6df59152 SW |
1551 | ret = ENOENT; |
1552 | goto done; | |
1553 | } | |
98cda54a | 1554 | } |
6df59152 | 1555 | #endif /* HAVE_NETLINK */ |
de3f5488 | 1556 | |
7cdb1a84 MS |
1557 | /* Trying out the sequence number idea, so we can try to detect |
1558 | * when a result is stale. | |
1559 | */ | |
1485bbe7 | 1560 | re->dplane_sequence = zebra_router_get_next_sequence(); |
7cdb1a84 MS |
1561 | ctx->zd_seq = re->dplane_sequence; |
1562 | ||
1563 | ret = AOK; | |
1564 | ||
1565 | done: | |
1566 | return ret; | |
1567 | } | |
1568 | ||
f820d025 SW |
1569 | /** |
1570 | * dplane_ctx_nexthop_init() - Initialize a context block for a nexthop update | |
1571 | * | |
1572 | * @ctx: Dataplane context to init | |
1573 | * @op: Operation being performed | |
1574 | * @nhe: Nexthop group hash entry | |
1575 | * | |
1576 | * Return: Result status | |
1577 | */ | |
1578 | static int dplane_ctx_nexthop_init(struct zebra_dplane_ctx *ctx, | |
1579 | enum dplane_op_e op, | |
1580 | struct nhg_hash_entry *nhe) | |
1581 | { | |
a7df21c4 | 1582 | struct zebra_vrf *zvrf = NULL; |
8e401b25 | 1583 | struct zebra_ns *zns = NULL; |
1909e63a | 1584 | |
f820d025 SW |
1585 | int ret = EINVAL; |
1586 | ||
1587 | if (!ctx || !nhe) | |
1588 | goto done; | |
1589 | ||
1590 | ctx->zd_op = op; | |
1591 | ctx->zd_status = ZEBRA_DPLANE_REQUEST_SUCCESS; | |
1592 | ||
1593 | /* Copy over nhe info */ | |
0c8215cb SW |
1594 | ctx->u.rinfo.nhe.id = nhe->id; |
1595 | ctx->u.rinfo.nhe.afi = nhe->afi; | |
1596 | ctx->u.rinfo.nhe.vrf_id = nhe->vrf_id; | |
38e40db1 | 1597 | ctx->u.rinfo.nhe.type = nhe->type; |
0c8215cb | 1598 | |
c415d895 | 1599 | nexthop_group_copy(&(ctx->u.rinfo.nhe.ng), &(nhe->nhg)); |
0c8215cb | 1600 | |
c415d895 | 1601 | /* If this is a group, convert it to a grp array of ids */ |
98cda54a SW |
1602 | if (!zebra_nhg_depends_is_empty(nhe) |
1603 | && !CHECK_FLAG(nhe->flags, NEXTHOP_GROUP_RECURSIVE)) | |
8dbc800f SW |
1604 | ctx->u.rinfo.nhe.nh_grp_count = zebra_nhg_nhe2grp( |
1605 | ctx->u.rinfo.nhe.nh_grp, nhe, MULTIPATH_NUM); | |
f820d025 | 1606 | |
a7df21c4 SW |
1607 | zvrf = vrf_info_lookup(nhe->vrf_id); |
1608 | ||
1609 | /* | |
1610 | * Fallback to default namespace if the vrf got ripped out from under | |
1611 | * us. | |
1612 | */ | |
1613 | zns = zvrf ? zvrf->zns : zebra_ns_lookup(NS_DEFAULT); | |
1909e63a | 1614 | |
2d3c57e6 SW |
1615 | /* |
1616 | * TODO: Might not need to mark this as an update, since | |
1617 | * it probably won't require two messages | |
1618 | */ | |
1909e63a SW |
1619 | dplane_ctx_ns_init(ctx, zns, (op == DPLANE_OP_NH_UPDATE)); |
1620 | ||
f820d025 SW |
1621 | ret = AOK; |
1622 | ||
1623 | done: | |
1624 | return ret; | |
1625 | } | |
1626 | ||
16c628de MS |
1627 | /* |
1628 | * Capture information for an LSP update in a dplane context. | |
1629 | */ | |
1630 | static int dplane_ctx_lsp_init(struct zebra_dplane_ctx *ctx, | |
1631 | enum dplane_op_e op, | |
1632 | zebra_lsp_t *lsp) | |
1633 | { | |
1634 | int ret = AOK; | |
1635 | zebra_nhlfe_t *nhlfe, *new_nhlfe; | |
1636 | ||
1637 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) | |
1638 | zlog_debug("init dplane ctx %s: in-label %u ecmp# %d", | |
1639 | dplane_op2str(op), lsp->ile.in_label, | |
1640 | lsp->num_ecmp); | |
1641 | ||
1642 | ctx->zd_op = op; | |
1643 | ctx->zd_status = ZEBRA_DPLANE_REQUEST_SUCCESS; | |
1644 | ||
1645 | /* Capture namespace info */ | |
1646 | dplane_ctx_ns_init(ctx, zebra_ns_lookup(NS_DEFAULT), | |
1647 | (op == DPLANE_OP_LSP_UPDATE)); | |
1648 | ||
1649 | memset(&ctx->u.lsp, 0, sizeof(ctx->u.lsp)); | |
1650 | ||
1651 | ctx->u.lsp.ile = lsp->ile; | |
1652 | ctx->u.lsp.addr_family = lsp->addr_family; | |
1653 | ctx->u.lsp.num_ecmp = lsp->num_ecmp; | |
1654 | ctx->u.lsp.flags = lsp->flags; | |
1655 | ||
1656 | /* Copy source LSP's nhlfes, and capture 'best' nhlfe */ | |
1657 | for (nhlfe = lsp->nhlfe_list; nhlfe; nhlfe = nhlfe->next) { | |
1658 | /* Not sure if this is meaningful... */ | |
1659 | if (nhlfe->nexthop == NULL) | |
1660 | continue; | |
1661 | ||
1662 | new_nhlfe = | |
1663 | zebra_mpls_lsp_add_nhlfe( | |
1664 | &(ctx->u.lsp), | |
1665 | nhlfe->type, | |
1666 | nhlfe->nexthop->type, | |
1667 | &(nhlfe->nexthop->gate), | |
1668 | nhlfe->nexthop->ifindex, | |
5065db0a RW |
1669 | nhlfe->nexthop->nh_label->num_labels, |
1670 | nhlfe->nexthop->nh_label->label); | |
16c628de MS |
1671 | |
1672 | if (new_nhlfe == NULL || new_nhlfe->nexthop == NULL) { | |
1673 | ret = ENOMEM; | |
1674 | break; | |
1675 | } | |
1676 | ||
1677 | /* Need to copy flags too */ | |
1678 | new_nhlfe->flags = nhlfe->flags; | |
1679 | new_nhlfe->nexthop->flags = nhlfe->nexthop->flags; | |
1680 | ||
1681 | if (nhlfe == lsp->best_nhlfe) | |
1682 | ctx->u.lsp.best_nhlfe = new_nhlfe; | |
1683 | } | |
1684 | ||
1685 | /* On error the ctx will be cleaned-up, so we don't need to | |
1686 | * deal with any allocated nhlfe or nexthop structs here. | |
1687 | */ | |
1688 | ||
1689 | return ret; | |
1690 | } | |
1691 | ||
97d8d05a MS |
1692 | /* |
1693 | * Capture information for an LSP update in a dplane context. | |
1694 | */ | |
1695 | static int dplane_ctx_pw_init(struct zebra_dplane_ctx *ctx, | |
1696 | enum dplane_op_e op, | |
1697 | struct zebra_pw *pw) | |
1698 | { | |
09cd307c MS |
1699 | struct prefix p; |
1700 | afi_t afi; | |
1701 | struct route_table *table; | |
1702 | struct route_node *rn; | |
1703 | struct route_entry *re; | |
1704 | ||
97d8d05a MS |
1705 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) |
1706 | zlog_debug("init dplane ctx %s: pw '%s', loc %u, rem %u", | |
1707 | dplane_op2str(op), pw->ifname, pw->local_label, | |
1708 | pw->remote_label); | |
1709 | ||
1710 | ctx->zd_op = op; | |
1711 | ctx->zd_status = ZEBRA_DPLANE_REQUEST_SUCCESS; | |
1712 | ||
1713 | /* Capture namespace info: no netlink support as of 12/18, | |
1714 | * but just in case... | |
1715 | */ | |
1716 | dplane_ctx_ns_init(ctx, zebra_ns_lookup(NS_DEFAULT), false); | |
1717 | ||
1718 | memset(&ctx->u.pw, 0, sizeof(ctx->u.pw)); | |
1719 | ||
1720 | /* This name appears to be c-string, so we use string copy. */ | |
7c7ef4a8 | 1721 | strlcpy(ctx->zd_ifname, pw->ifname, sizeof(ctx->zd_ifname)); |
16d69787 | 1722 | |
9bd9717b | 1723 | ctx->zd_vrf_id = pw->vrf_id; |
7c7ef4a8 | 1724 | ctx->zd_ifindex = pw->ifindex; |
97d8d05a MS |
1725 | ctx->u.pw.type = pw->type; |
1726 | ctx->u.pw.af = pw->af; | |
1727 | ctx->u.pw.local_label = pw->local_label; | |
1728 | ctx->u.pw.remote_label = pw->remote_label; | |
1729 | ctx->u.pw.flags = pw->flags; | |
1730 | ||
16d69787 | 1731 | ctx->u.pw.dest = pw->nexthop; |
97d8d05a MS |
1732 | |
1733 | ctx->u.pw.fields = pw->data; | |
1734 | ||
09cd307c MS |
1735 | /* Capture nexthop info for the pw destination. We need to look |
1736 | * up and use zebra datastructs, but we're running in the zebra | |
1737 | * pthread here so that should be ok. | |
1738 | */ | |
1739 | memcpy(&p.u, &pw->nexthop, sizeof(pw->nexthop)); | |
1740 | p.family = pw->af; | |
1741 | p.prefixlen = ((pw->af == AF_INET) ? | |
1742 | IPV4_MAX_PREFIXLEN : IPV6_MAX_PREFIXLEN); | |
1743 | ||
1744 | afi = (pw->af == AF_INET) ? AFI_IP : AFI_IP6; | |
1745 | table = zebra_vrf_table(afi, SAFI_UNICAST, pw->vrf_id); | |
1746 | if (table) { | |
1747 | rn = route_node_match(table, &p); | |
1748 | if (rn) { | |
1749 | RNODE_FOREACH_RE(rn, re) { | |
1750 | if (CHECK_FLAG(re->flags, ZEBRA_FLAG_SELECTED)) | |
1751 | break; | |
1752 | } | |
1753 | ||
1754 | if (re) | |
1755 | copy_nexthops(&(ctx->u.pw.nhg.nexthop), | |
c415d895 | 1756 | re->nhe->nhg.nexthop, NULL); |
09cd307c MS |
1757 | |
1758 | route_unlock_node(rn); | |
1759 | } | |
1760 | } | |
1761 | ||
9f2d0354 | 1762 | return AOK; |
97d8d05a MS |
1763 | } |
1764 | ||
7cdb1a84 | 1765 | /* |
3fe4ccc4 | 1766 | * Enqueue a new update, |
16c628de | 1767 | * and ensure an event is active for the dataplane pthread. |
7cdb1a84 | 1768 | */ |
3fe4ccc4 | 1769 | static int dplane_update_enqueue(struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
1770 | { |
1771 | int ret = EINVAL; | |
91f16812 | 1772 | uint32_t high, curr; |
7cdb1a84 | 1773 | |
16c628de | 1774 | /* Enqueue for processing by the dataplane pthread */ |
7cdb1a84 MS |
1775 | DPLANE_LOCK(); |
1776 | { | |
3fe4ccc4 | 1777 | TAILQ_INSERT_TAIL(&zdplane_info.dg_update_ctx_q, ctx, |
25779064 | 1778 | zd_q_entries); |
7cdb1a84 MS |
1779 | } |
1780 | DPLANE_UNLOCK(); | |
1781 | ||
e07e9549 MS |
1782 | curr = atomic_add_fetch_explicit( |
1783 | #ifdef __clang__ | |
1784 | /* TODO -- issue with the clang atomic/intrinsics currently; | |
1785 | * casting away the 'Atomic'-ness of the variable works. | |
1786 | */ | |
1787 | (uint32_t *)&(zdplane_info.dg_routes_queued), | |
1788 | #else | |
1789 | &(zdplane_info.dg_routes_queued), | |
1790 | #endif | |
1791 | 1, memory_order_seq_cst); | |
91f16812 MS |
1792 | |
1793 | /* Maybe update high-water counter also */ | |
1794 | high = atomic_load_explicit(&zdplane_info.dg_routes_queued_max, | |
1795 | memory_order_seq_cst); | |
1796 | while (high < curr) { | |
1797 | if (atomic_compare_exchange_weak_explicit( | |
1798 | &zdplane_info.dg_routes_queued_max, | |
1799 | &high, curr, | |
1800 | memory_order_seq_cst, | |
1801 | memory_order_seq_cst)) | |
1802 | break; | |
1803 | } | |
1804 | ||
7cdb1a84 | 1805 | /* Ensure that an event for the dataplane thread is active */ |
c831033f | 1806 | ret = dplane_provider_work_ready(); |
7cdb1a84 | 1807 | |
5709131c | 1808 | return ret; |
7cdb1a84 MS |
1809 | } |
1810 | ||
7cdb1a84 MS |
1811 | /* |
1812 | * Utility that prepares a route update and enqueues it for processing | |
1813 | */ | |
655d681a MS |
1814 | static enum zebra_dplane_result |
1815 | dplane_route_update_internal(struct route_node *rn, | |
1816 | struct route_entry *re, | |
1817 | struct route_entry *old_re, | |
5709131c | 1818 | enum dplane_op_e op) |
7cdb1a84 | 1819 | { |
655d681a | 1820 | enum zebra_dplane_result result = ZEBRA_DPLANE_REQUEST_FAILURE; |
7cdb1a84 | 1821 | int ret = EINVAL; |
25779064 | 1822 | struct zebra_dplane_ctx *ctx = NULL; |
7cdb1a84 MS |
1823 | |
1824 | /* Obtain context block */ | |
1825 | ctx = dplane_ctx_alloc(); | |
7cdb1a84 MS |
1826 | |
1827 | /* Init context with info from zebra data structs */ | |
1828 | ret = dplane_ctx_route_init(ctx, op, rn, re); | |
1829 | if (ret == AOK) { | |
1830 | /* Capture some extra info for update case | |
1831 | * where there's a different 'old' route. | |
1832 | */ | |
b8e0423d MS |
1833 | if ((op == DPLANE_OP_ROUTE_UPDATE) && |
1834 | old_re && (old_re != re)) { | |
7cdb1a84 MS |
1835 | ctx->zd_is_update = true; |
1836 | ||
1485bbe7 DS |
1837 | old_re->dplane_sequence = |
1838 | zebra_router_get_next_sequence(); | |
7cdb1a84 MS |
1839 | ctx->zd_old_seq = old_re->dplane_sequence; |
1840 | ||
0f461727 MS |
1841 | ctx->u.rinfo.zd_old_tag = old_re->tag; |
1842 | ctx->u.rinfo.zd_old_type = old_re->type; | |
1843 | ctx->u.rinfo.zd_old_instance = old_re->instance; | |
1844 | ctx->u.rinfo.zd_old_distance = old_re->distance; | |
1845 | ctx->u.rinfo.zd_old_metric = old_re->metric; | |
01ce7cba MS |
1846 | |
1847 | #ifndef HAVE_NETLINK | |
f183e380 MS |
1848 | /* For bsd, capture previous re's nexthops too, sigh. |
1849 | * We'll need these to do per-nexthop deletes. | |
1850 | */ | |
0f461727 | 1851 | copy_nexthops(&(ctx->u.rinfo.zd_old_ng.nexthop), |
c415d895 | 1852 | old_re->nhe->nhg.nexthop, NULL); |
01ce7cba | 1853 | #endif /* !HAVE_NETLINK */ |
7cdb1a84 MS |
1854 | } |
1855 | ||
1856 | /* Enqueue context for processing */ | |
3fe4ccc4 | 1857 | ret = dplane_update_enqueue(ctx); |
7cdb1a84 MS |
1858 | } |
1859 | ||
91f16812 | 1860 | /* Update counter */ |
25779064 | 1861 | atomic_fetch_add_explicit(&zdplane_info.dg_routes_in, 1, |
1d11b21f MS |
1862 | memory_order_relaxed); |
1863 | ||
91f16812 | 1864 | if (ret == AOK) |
655d681a | 1865 | result = ZEBRA_DPLANE_REQUEST_QUEUED; |
16c628de | 1866 | else { |
6df59152 SW |
1867 | if (ret == ENOENT) |
1868 | result = ZEBRA_DPLANE_REQUEST_SUCCESS; | |
1869 | else | |
1870 | atomic_fetch_add_explicit(&zdplane_info.dg_route_errors, | |
1871 | 1, memory_order_relaxed); | |
16c628de MS |
1872 | if (ctx) |
1873 | dplane_ctx_free(&ctx); | |
1d11b21f | 1874 | } |
7cdb1a84 | 1875 | |
5709131c | 1876 | return result; |
7cdb1a84 MS |
1877 | } |
1878 | ||
f820d025 SW |
1879 | /** |
1880 | * dplane_nexthop_update_internal() - Helper for enqueuing nexthop changes | |
1881 | * | |
1882 | * @nhe: Nexthop group hash entry where the change occured | |
1883 | * @op: The operation to be enqued | |
1884 | * | |
1885 | * Return: Result of the change | |
1886 | */ | |
1887 | static enum zebra_dplane_result | |
1888 | dplane_nexthop_update_internal(struct nhg_hash_entry *nhe, enum dplane_op_e op) | |
1889 | { | |
1890 | enum zebra_dplane_result result = ZEBRA_DPLANE_REQUEST_FAILURE; | |
1891 | int ret = EINVAL; | |
1892 | struct zebra_dplane_ctx *ctx = NULL; | |
1893 | ||
1894 | /* Obtain context block */ | |
1895 | ctx = dplane_ctx_alloc(); | |
1896 | if (!ctx) { | |
1897 | ret = ENOMEM; | |
1898 | goto done; | |
1899 | } | |
1900 | ||
1901 | ret = dplane_ctx_nexthop_init(ctx, op, nhe); | |
2d3c57e6 | 1902 | if (ret == AOK) |
f820d025 | 1903 | ret = dplane_update_enqueue(ctx); |
2d3c57e6 | 1904 | |
f820d025 SW |
1905 | done: |
1906 | /* Update counter */ | |
1907 | atomic_fetch_add_explicit(&zdplane_info.dg_nexthops_in, 1, | |
1908 | memory_order_relaxed); | |
1909 | ||
1910 | if (ret == AOK) | |
1911 | result = ZEBRA_DPLANE_REQUEST_QUEUED; | |
1912 | else { | |
81505946 SW |
1913 | atomic_fetch_add_explicit(&zdplane_info.dg_nexthop_errors, 1, |
1914 | memory_order_relaxed); | |
f820d025 SW |
1915 | if (ctx) |
1916 | dplane_ctx_free(&ctx); | |
1917 | } | |
1918 | ||
1919 | return result; | |
1920 | } | |
1921 | ||
7cdb1a84 MS |
1922 | /* |
1923 | * Enqueue a route 'add' for the dataplane. | |
1924 | */ | |
655d681a MS |
1925 | enum zebra_dplane_result dplane_route_add(struct route_node *rn, |
1926 | struct route_entry *re) | |
7cdb1a84 | 1927 | { |
655d681a | 1928 | enum zebra_dplane_result ret = ZEBRA_DPLANE_REQUEST_FAILURE; |
7cdb1a84 | 1929 | |
5709131c | 1930 | if (rn == NULL || re == NULL) |
7cdb1a84 | 1931 | goto done; |
7cdb1a84 MS |
1932 | |
1933 | ret = dplane_route_update_internal(rn, re, NULL, | |
1934 | DPLANE_OP_ROUTE_INSTALL); | |
1935 | ||
1936 | done: | |
5709131c | 1937 | return ret; |
7cdb1a84 MS |
1938 | } |
1939 | ||
1940 | /* | |
1941 | * Enqueue a route update for the dataplane. | |
1942 | */ | |
655d681a MS |
1943 | enum zebra_dplane_result dplane_route_update(struct route_node *rn, |
1944 | struct route_entry *re, | |
1945 | struct route_entry *old_re) | |
7cdb1a84 | 1946 | { |
655d681a | 1947 | enum zebra_dplane_result ret = ZEBRA_DPLANE_REQUEST_FAILURE; |
7cdb1a84 | 1948 | |
5709131c | 1949 | if (rn == NULL || re == NULL) |
7cdb1a84 | 1950 | goto done; |
7cdb1a84 MS |
1951 | |
1952 | ret = dplane_route_update_internal(rn, re, old_re, | |
1953 | DPLANE_OP_ROUTE_UPDATE); | |
7cdb1a84 | 1954 | done: |
5709131c | 1955 | return ret; |
7cdb1a84 MS |
1956 | } |
1957 | ||
1958 | /* | |
1959 | * Enqueue a route removal for the dataplane. | |
1960 | */ | |
655d681a MS |
1961 | enum zebra_dplane_result dplane_route_delete(struct route_node *rn, |
1962 | struct route_entry *re) | |
7cdb1a84 | 1963 | { |
655d681a | 1964 | enum zebra_dplane_result ret = ZEBRA_DPLANE_REQUEST_FAILURE; |
7cdb1a84 | 1965 | |
5709131c | 1966 | if (rn == NULL || re == NULL) |
7cdb1a84 | 1967 | goto done; |
7cdb1a84 MS |
1968 | |
1969 | ret = dplane_route_update_internal(rn, re, NULL, | |
1970 | DPLANE_OP_ROUTE_DELETE); | |
1971 | ||
1972 | done: | |
5709131c | 1973 | return ret; |
7cdb1a84 MS |
1974 | } |
1975 | ||
cf363e1b MS |
1976 | /* |
1977 | * Notify the dplane when system/connected routes change. | |
1978 | */ | |
1979 | enum zebra_dplane_result dplane_sys_route_add(struct route_node *rn, | |
1980 | struct route_entry *re) | |
1981 | { | |
1982 | enum zebra_dplane_result ret = ZEBRA_DPLANE_REQUEST_FAILURE; | |
1983 | ||
1984 | /* Ignore this event unless a provider plugin has requested it. */ | |
1985 | if (!zdplane_info.dg_sys_route_notifs) { | |
1986 | ret = ZEBRA_DPLANE_REQUEST_SUCCESS; | |
1987 | goto done; | |
1988 | } | |
1989 | ||
1990 | if (rn == NULL || re == NULL) | |
1991 | goto done; | |
1992 | ||
1993 | ret = dplane_route_update_internal(rn, re, NULL, | |
1994 | DPLANE_OP_SYS_ROUTE_ADD); | |
1995 | ||
1996 | done: | |
1997 | return ret; | |
1998 | } | |
1999 | ||
2000 | /* | |
2001 | * Notify the dplane when system/connected routes are deleted. | |
2002 | */ | |
2003 | enum zebra_dplane_result dplane_sys_route_del(struct route_node *rn, | |
2004 | struct route_entry *re) | |
2005 | { | |
2006 | enum zebra_dplane_result ret = ZEBRA_DPLANE_REQUEST_FAILURE; | |
2007 | ||
2008 | /* Ignore this event unless a provider plugin has requested it. */ | |
2009 | if (!zdplane_info.dg_sys_route_notifs) { | |
2010 | ret = ZEBRA_DPLANE_REQUEST_SUCCESS; | |
2011 | goto done; | |
2012 | } | |
2013 | ||
2014 | if (rn == NULL || re == NULL) | |
2015 | goto done; | |
2016 | ||
2017 | ret = dplane_route_update_internal(rn, re, NULL, | |
2018 | DPLANE_OP_SYS_ROUTE_DELETE); | |
2019 | ||
2020 | done: | |
2021 | return ret; | |
2022 | } | |
2023 | ||
188a00e0 MS |
2024 | /* |
2025 | * Update from an async notification, to bring other fibs up-to-date. | |
2026 | */ | |
2027 | enum zebra_dplane_result | |
2028 | dplane_route_notif_update(struct route_node *rn, | |
2029 | struct route_entry *re, | |
2030 | enum dplane_op_e op, | |
2031 | struct zebra_dplane_ctx *ctx) | |
2032 | { | |
2033 | enum zebra_dplane_result ret = ZEBRA_DPLANE_REQUEST_FAILURE; | |
2034 | struct zebra_dplane_ctx *new_ctx = NULL; | |
2035 | struct nexthop *nexthop; | |
2036 | ||
2037 | if (rn == NULL || re == NULL) | |
2038 | goto done; | |
2039 | ||
2040 | new_ctx = dplane_ctx_alloc(); | |
2041 | if (new_ctx == NULL) | |
2042 | goto done; | |
2043 | ||
2044 | /* Init context with info from zebra data structs */ | |
2045 | dplane_ctx_route_init(new_ctx, op, rn, re); | |
2046 | ||
2047 | /* For add/update, need to adjust the nexthops so that we match | |
2048 | * the notification state, which may not be the route-entry/RIB | |
2049 | * state. | |
2050 | */ | |
2051 | if (op == DPLANE_OP_ROUTE_UPDATE || | |
2052 | op == DPLANE_OP_ROUTE_INSTALL) { | |
2053 | ||
2054 | nexthops_free(new_ctx->u.rinfo.zd_ng.nexthop); | |
2055 | new_ctx->u.rinfo.zd_ng.nexthop = NULL; | |
2056 | ||
2057 | copy_nexthops(&(new_ctx->u.rinfo.zd_ng.nexthop), | |
2058 | (rib_active_nhg(re))->nexthop, NULL); | |
2059 | ||
2060 | for (ALL_NEXTHOPS(new_ctx->u.rinfo.zd_ng, nexthop)) | |
2061 | UNSET_FLAG(nexthop->flags, NEXTHOP_FLAG_FIB); | |
2062 | ||
2063 | } | |
2064 | ||
2065 | /* Capture info about the source of the notification, in 'ctx' */ | |
2066 | dplane_ctx_set_notif_provider(new_ctx, | |
2067 | dplane_ctx_get_notif_provider(ctx)); | |
2068 | ||
3fe4ccc4 | 2069 | dplane_update_enqueue(new_ctx); |
188a00e0 MS |
2070 | |
2071 | ret = ZEBRA_DPLANE_REQUEST_QUEUED; | |
2072 | ||
2073 | done: | |
2074 | return ret; | |
2075 | } | |
2076 | ||
f820d025 SW |
2077 | /* |
2078 | * Enqueue a nexthop add for the dataplane. | |
2079 | */ | |
2080 | enum zebra_dplane_result dplane_nexthop_add(struct nhg_hash_entry *nhe) | |
2081 | { | |
2082 | enum zebra_dplane_result ret = ZEBRA_DPLANE_REQUEST_FAILURE; | |
2083 | ||
2084 | if (nhe) | |
2085 | ret = dplane_nexthop_update_internal(nhe, DPLANE_OP_NH_INSTALL); | |
2086 | return ret; | |
2087 | } | |
2088 | ||
2089 | /* | |
2090 | * Enqueue a nexthop update for the dataplane. | |
81505946 SW |
2091 | * |
2092 | * Might not need this func since zebra's nexthop objects should be immutable? | |
f820d025 SW |
2093 | */ |
2094 | enum zebra_dplane_result dplane_nexthop_update(struct nhg_hash_entry *nhe) | |
2095 | { | |
2096 | enum zebra_dplane_result ret = ZEBRA_DPLANE_REQUEST_FAILURE; | |
2097 | ||
2098 | if (nhe) | |
2099 | ret = dplane_nexthop_update_internal(nhe, DPLANE_OP_NH_UPDATE); | |
2100 | return ret; | |
2101 | } | |
2102 | ||
2103 | /* | |
2104 | * Enqueue a nexthop removal for the dataplane. | |
2105 | */ | |
2106 | enum zebra_dplane_result dplane_nexthop_delete(struct nhg_hash_entry *nhe) | |
2107 | { | |
2108 | enum zebra_dplane_result ret = ZEBRA_DPLANE_REQUEST_FAILURE; | |
2109 | ||
2110 | if (nhe) | |
2111 | ret = dplane_nexthop_update_internal(nhe, DPLANE_OP_NH_DELETE); | |
2112 | ||
2113 | return ret; | |
2114 | } | |
2115 | ||
16c628de MS |
2116 | /* |
2117 | * Enqueue LSP add for the dataplane. | |
2118 | */ | |
2119 | enum zebra_dplane_result dplane_lsp_add(zebra_lsp_t *lsp) | |
2120 | { | |
2121 | enum zebra_dplane_result ret = | |
2122 | lsp_update_internal(lsp, DPLANE_OP_LSP_INSTALL); | |
2123 | ||
2124 | return ret; | |
2125 | } | |
2126 | ||
2127 | /* | |
2128 | * Enqueue LSP update for the dataplane. | |
2129 | */ | |
2130 | enum zebra_dplane_result dplane_lsp_update(zebra_lsp_t *lsp) | |
2131 | { | |
2132 | enum zebra_dplane_result ret = | |
2133 | lsp_update_internal(lsp, DPLANE_OP_LSP_UPDATE); | |
2134 | ||
2135 | return ret; | |
2136 | } | |
2137 | ||
2138 | /* | |
2139 | * Enqueue LSP delete for the dataplane. | |
2140 | */ | |
2141 | enum zebra_dplane_result dplane_lsp_delete(zebra_lsp_t *lsp) | |
2142 | { | |
2143 | enum zebra_dplane_result ret = | |
2144 | lsp_update_internal(lsp, DPLANE_OP_LSP_DELETE); | |
2145 | ||
2146 | return ret; | |
2147 | } | |
2148 | ||
188a00e0 MS |
2149 | /* Update or un-install resulting from an async notification */ |
2150 | enum zebra_dplane_result | |
2151 | dplane_lsp_notif_update(zebra_lsp_t *lsp, | |
2152 | enum dplane_op_e op, | |
2153 | struct zebra_dplane_ctx *notif_ctx) | |
2154 | { | |
2155 | enum zebra_dplane_result result = ZEBRA_DPLANE_REQUEST_FAILURE; | |
2156 | int ret = EINVAL; | |
2157 | struct zebra_dplane_ctx *ctx = NULL; | |
2158 | ||
2159 | /* Obtain context block */ | |
2160 | ctx = dplane_ctx_alloc(); | |
2161 | if (ctx == NULL) { | |
2162 | ret = ENOMEM; | |
2163 | goto done; | |
2164 | } | |
2165 | ||
2166 | ret = dplane_ctx_lsp_init(ctx, op, lsp); | |
2167 | if (ret != AOK) | |
2168 | goto done; | |
2169 | ||
2170 | /* Capture info about the source of the notification */ | |
2171 | dplane_ctx_set_notif_provider( | |
2172 | ctx, | |
2173 | dplane_ctx_get_notif_provider(notif_ctx)); | |
2174 | ||
3fe4ccc4 | 2175 | ret = dplane_update_enqueue(ctx); |
188a00e0 MS |
2176 | |
2177 | done: | |
2178 | /* Update counter */ | |
2179 | atomic_fetch_add_explicit(&zdplane_info.dg_lsps_in, 1, | |
2180 | memory_order_relaxed); | |
2181 | ||
2182 | if (ret == AOK) | |
2183 | result = ZEBRA_DPLANE_REQUEST_QUEUED; | |
2184 | else { | |
2185 | atomic_fetch_add_explicit(&zdplane_info.dg_lsp_errors, 1, | |
2186 | memory_order_relaxed); | |
2187 | if (ctx) | |
2188 | dplane_ctx_free(&ctx); | |
2189 | } | |
2190 | return result; | |
2191 | } | |
2192 | ||
97d8d05a MS |
2193 | /* |
2194 | * Enqueue pseudowire install for the dataplane. | |
2195 | */ | |
2196 | enum zebra_dplane_result dplane_pw_install(struct zebra_pw *pw) | |
2197 | { | |
2198 | return pw_update_internal(pw, DPLANE_OP_PW_INSTALL); | |
2199 | } | |
2200 | ||
2201 | /* | |
2202 | * Enqueue pseudowire un-install for the dataplane. | |
2203 | */ | |
2204 | enum zebra_dplane_result dplane_pw_uninstall(struct zebra_pw *pw) | |
2205 | { | |
2206 | return pw_update_internal(pw, DPLANE_OP_PW_UNINSTALL); | |
2207 | } | |
2208 | ||
16c628de MS |
2209 | /* |
2210 | * Common internal LSP update utility | |
2211 | */ | |
2212 | static enum zebra_dplane_result lsp_update_internal(zebra_lsp_t *lsp, | |
2213 | enum dplane_op_e op) | |
2214 | { | |
2215 | enum zebra_dplane_result result = ZEBRA_DPLANE_REQUEST_FAILURE; | |
2216 | int ret = EINVAL; | |
2217 | struct zebra_dplane_ctx *ctx = NULL; | |
2218 | ||
2219 | /* Obtain context block */ | |
2220 | ctx = dplane_ctx_alloc(); | |
16c628de MS |
2221 | |
2222 | ret = dplane_ctx_lsp_init(ctx, op, lsp); | |
2223 | if (ret != AOK) | |
2224 | goto done; | |
2225 | ||
3fe4ccc4 | 2226 | ret = dplane_update_enqueue(ctx); |
16c628de MS |
2227 | |
2228 | done: | |
2229 | /* Update counter */ | |
2230 | atomic_fetch_add_explicit(&zdplane_info.dg_lsps_in, 1, | |
2231 | memory_order_relaxed); | |
2232 | ||
2233 | if (ret == AOK) | |
2234 | result = ZEBRA_DPLANE_REQUEST_QUEUED; | |
2235 | else { | |
2236 | atomic_fetch_add_explicit(&zdplane_info.dg_lsp_errors, 1, | |
2237 | memory_order_relaxed); | |
d8e479a3 | 2238 | dplane_ctx_free(&ctx); |
16c628de MS |
2239 | } |
2240 | ||
2241 | return result; | |
2242 | } | |
2243 | ||
97d8d05a MS |
2244 | /* |
2245 | * Internal, common handler for pseudowire updates. | |
2246 | */ | |
2247 | static enum zebra_dplane_result pw_update_internal(struct zebra_pw *pw, | |
2248 | enum dplane_op_e op) | |
2249 | { | |
2250 | enum zebra_dplane_result result = ZEBRA_DPLANE_REQUEST_FAILURE; | |
2251 | int ret; | |
2252 | struct zebra_dplane_ctx *ctx = NULL; | |
2253 | ||
2254 | ctx = dplane_ctx_alloc(); | |
97d8d05a MS |
2255 | |
2256 | ret = dplane_ctx_pw_init(ctx, op, pw); | |
2257 | if (ret != AOK) | |
2258 | goto done; | |
2259 | ||
3fe4ccc4 | 2260 | ret = dplane_update_enqueue(ctx); |
97d8d05a MS |
2261 | |
2262 | done: | |
2263 | /* Update counter */ | |
2264 | atomic_fetch_add_explicit(&zdplane_info.dg_pws_in, 1, | |
2265 | memory_order_relaxed); | |
2266 | ||
2267 | if (ret == AOK) | |
2268 | result = ZEBRA_DPLANE_REQUEST_QUEUED; | |
2269 | else { | |
2270 | atomic_fetch_add_explicit(&zdplane_info.dg_pw_errors, 1, | |
2271 | memory_order_relaxed); | |
d8e479a3 | 2272 | dplane_ctx_free(&ctx); |
97d8d05a MS |
2273 | } |
2274 | ||
2275 | return result; | |
2276 | } | |
2277 | ||
a4a4802a MS |
2278 | /* |
2279 | * Enqueue interface address add for the dataplane. | |
2280 | */ | |
2281 | enum zebra_dplane_result dplane_intf_addr_set(const struct interface *ifp, | |
2282 | const struct connected *ifc) | |
2283 | { | |
64168803 MS |
2284 | #if !defined(HAVE_NETLINK) && defined(HAVE_STRUCT_IFALIASREQ) |
2285 | /* Extra checks for this OS path. */ | |
2286 | ||
2287 | /* Don't configure PtP addresses on broadcast ifs or reverse */ | |
2288 | if (!(ifp->flags & IFF_POINTOPOINT) != !CONNECTED_PEER(ifc)) { | |
2289 | if (IS_ZEBRA_DEBUG_KERNEL || IS_ZEBRA_DEBUG_DPLANE) | |
2290 | zlog_debug("Failed to set intf addr: mismatch p2p and connected"); | |
2291 | ||
2292 | return ZEBRA_DPLANE_REQUEST_FAILURE; | |
2293 | } | |
2294 | ||
2295 | /* Ensure that no existing installed v4 route conflicts with | |
2296 | * the new interface prefix. This check must be done in the | |
2297 | * zebra pthread context, and any route delete (if needed) | |
2298 | * is enqueued before the interface address programming attempt. | |
2299 | */ | |
2300 | if (ifc->address->family == AF_INET) { | |
2301 | struct prefix_ipv4 *p; | |
2302 | ||
2303 | p = (struct prefix_ipv4 *)ifc->address; | |
a36898e7 | 2304 | rib_lookup_and_pushup(p, ifp->vrf_id); |
64168803 MS |
2305 | } |
2306 | #endif | |
2307 | ||
2308 | return intf_addr_update_internal(ifp, ifc, DPLANE_OP_ADDR_INSTALL); | |
a4a4802a MS |
2309 | } |
2310 | ||
2311 | /* | |
2312 | * Enqueue interface address remove/uninstall for the dataplane. | |
2313 | */ | |
2314 | enum zebra_dplane_result dplane_intf_addr_unset(const struct interface *ifp, | |
2315 | const struct connected *ifc) | |
2316 | { | |
64168803 MS |
2317 | return intf_addr_update_internal(ifp, ifc, DPLANE_OP_ADDR_UNINSTALL); |
2318 | } | |
2319 | ||
2320 | static enum zebra_dplane_result intf_addr_update_internal( | |
2321 | const struct interface *ifp, const struct connected *ifc, | |
2322 | enum dplane_op_e op) | |
2323 | { | |
2324 | enum zebra_dplane_result result = ZEBRA_DPLANE_REQUEST_FAILURE; | |
2325 | int ret = EINVAL; | |
2326 | struct zebra_dplane_ctx *ctx = NULL; | |
2327 | struct zebra_ns *zns; | |
2328 | ||
2329 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) { | |
2330 | char addr_str[PREFIX_STRLEN]; | |
2331 | ||
2332 | prefix2str(ifc->address, addr_str, sizeof(addr_str)); | |
2333 | ||
2334 | zlog_debug("init intf ctx %s: idx %d, addr %u:%s", | |
a36898e7 | 2335 | dplane_op2str(op), ifp->ifindex, ifp->vrf_id, |
64168803 MS |
2336 | addr_str); |
2337 | } | |
2338 | ||
2339 | ctx = dplane_ctx_alloc(); | |
64168803 MS |
2340 | |
2341 | ctx->zd_op = op; | |
2342 | ctx->zd_status = ZEBRA_DPLANE_REQUEST_SUCCESS; | |
a36898e7 | 2343 | ctx->zd_vrf_id = ifp->vrf_id; |
64168803 | 2344 | |
a36898e7 | 2345 | zns = zebra_ns_lookup(ifp->vrf_id); |
64168803 MS |
2346 | dplane_ctx_ns_init(ctx, zns, false); |
2347 | ||
2348 | /* Init the interface-addr-specific area */ | |
2349 | memset(&ctx->u.intf, 0, sizeof(ctx->u.intf)); | |
2350 | ||
7c7ef4a8 MS |
2351 | strlcpy(ctx->zd_ifname, ifp->name, sizeof(ctx->zd_ifname)); |
2352 | ctx->zd_ifindex = ifp->ifindex; | |
64168803 MS |
2353 | ctx->u.intf.prefix = *(ifc->address); |
2354 | ||
2355 | if (if_is_broadcast(ifp)) | |
2356 | ctx->u.intf.flags |= DPLANE_INTF_BROADCAST; | |
2357 | ||
2358 | if (CONNECTED_PEER(ifc)) { | |
2359 | ctx->u.intf.dest_prefix = *(ifc->destination); | |
2360 | ctx->u.intf.flags |= | |
2361 | (DPLANE_INTF_CONNECTED | DPLANE_INTF_HAS_DEST); | |
64168803 MS |
2362 | } |
2363 | ||
2364 | if (CHECK_FLAG(ifc->flags, ZEBRA_IFA_SECONDARY)) | |
2365 | ctx->u.intf.flags |= DPLANE_INTF_SECONDARY; | |
2366 | ||
2367 | if (ifc->label) { | |
2368 | size_t len; | |
2369 | ||
2370 | ctx->u.intf.flags |= DPLANE_INTF_HAS_LABEL; | |
2371 | ||
2372 | /* Use embedded buffer if it's adequate; else allocate. */ | |
2373 | len = strlen(ifc->label); | |
2374 | ||
2375 | if (len < sizeof(ctx->u.intf.label_buf)) { | |
b7b7bf31 | 2376 | strlcpy(ctx->u.intf.label_buf, ifc->label, |
64168803 MS |
2377 | sizeof(ctx->u.intf.label_buf)); |
2378 | ctx->u.intf.label = ctx->u.intf.label_buf; | |
2379 | } else { | |
2380 | ctx->u.intf.label = strdup(ifc->label); | |
2381 | } | |
2382 | } | |
2383 | ||
3fe4ccc4 | 2384 | ret = dplane_update_enqueue(ctx); |
64168803 | 2385 | |
64168803 MS |
2386 | /* Increment counter */ |
2387 | atomic_fetch_add_explicit(&zdplane_info.dg_intf_addrs_in, 1, | |
2388 | memory_order_relaxed); | |
2389 | ||
2390 | if (ret == AOK) | |
2391 | result = ZEBRA_DPLANE_REQUEST_QUEUED; | |
2392 | else { | |
2393 | /* Error counter */ | |
2394 | atomic_fetch_add_explicit(&zdplane_info.dg_intf_addr_errors, | |
2395 | 1, memory_order_relaxed); | |
d8e479a3 | 2396 | dplane_ctx_free(&ctx); |
64168803 MS |
2397 | } |
2398 | ||
2399 | return result; | |
a4a4802a MS |
2400 | } |
2401 | ||
7597ac7b MS |
2402 | /* |
2403 | * Enqueue vxlan/evpn mac add (or update). | |
2404 | */ | |
2405 | enum zebra_dplane_result dplane_mac_add(const struct interface *ifp, | |
478566d6 | 2406 | const struct interface *bridge_ifp, |
7597ac7b MS |
2407 | vlanid_t vid, |
2408 | const struct ethaddr *mac, | |
2409 | struct in_addr vtep_ip, | |
2410 | bool sticky) | |
2411 | { | |
2412 | enum zebra_dplane_result result; | |
2413 | ||
2414 | /* Use common helper api */ | |
478566d6 MS |
2415 | result = mac_update_internal(DPLANE_OP_MAC_INSTALL, ifp, bridge_ifp, |
2416 | vid, mac, vtep_ip, sticky); | |
7597ac7b MS |
2417 | return result; |
2418 | } | |
2419 | ||
2420 | /* | |
2421 | * Enqueue vxlan/evpn mac delete. | |
2422 | */ | |
2423 | enum zebra_dplane_result dplane_mac_del(const struct interface *ifp, | |
478566d6 | 2424 | const struct interface *bridge_ifp, |
7597ac7b MS |
2425 | vlanid_t vid, |
2426 | const struct ethaddr *mac, | |
2427 | struct in_addr vtep_ip) | |
2428 | { | |
2429 | enum zebra_dplane_result result; | |
2430 | ||
2431 | /* Use common helper api */ | |
478566d6 MS |
2432 | result = mac_update_internal(DPLANE_OP_MAC_DELETE, ifp, bridge_ifp, |
2433 | vid, mac, vtep_ip, false); | |
7597ac7b MS |
2434 | return result; |
2435 | } | |
2436 | ||
2437 | /* | |
2438 | * Common helper api for MAC address/vxlan updates | |
2439 | */ | |
2440 | static enum zebra_dplane_result | |
2441 | mac_update_internal(enum dplane_op_e op, | |
2442 | const struct interface *ifp, | |
478566d6 | 2443 | const struct interface *br_ifp, |
7597ac7b MS |
2444 | vlanid_t vid, |
2445 | const struct ethaddr *mac, | |
2446 | struct in_addr vtep_ip, | |
2447 | bool sticky) | |
2448 | { | |
2449 | enum zebra_dplane_result result = ZEBRA_DPLANE_REQUEST_FAILURE; | |
2450 | int ret; | |
2451 | struct zebra_dplane_ctx *ctx = NULL; | |
2452 | struct zebra_ns *zns; | |
2453 | ||
036d93c0 MS |
2454 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) { |
2455 | char buf1[ETHER_ADDR_STRLEN], buf2[PREFIX_STRLEN]; | |
2456 | ||
2457 | zlog_debug("init mac ctx %s: mac %s, ifp %s, vtep %s", | |
2458 | dplane_op2str(op), | |
2459 | prefix_mac2str(mac, buf1, sizeof(buf1)), | |
2460 | ifp->name, | |
2461 | inet_ntop(AF_INET, &vtep_ip, buf2, sizeof(buf2))); | |
2462 | } | |
2463 | ||
7597ac7b MS |
2464 | ctx = dplane_ctx_alloc(); |
2465 | ||
2466 | ctx->zd_op = op; | |
2467 | ctx->zd_status = ZEBRA_DPLANE_REQUEST_SUCCESS; | |
2468 | ctx->zd_vrf_id = ifp->vrf_id; | |
2469 | ||
2470 | zns = zebra_ns_lookup(ifp->vrf_id); | |
2471 | dplane_ctx_ns_init(ctx, zns, false); | |
2472 | ||
2473 | strlcpy(ctx->zd_ifname, ifp->name, sizeof(ctx->zd_ifname)); | |
2474 | ctx->zd_ifindex = ifp->ifindex; | |
2475 | ||
2476 | /* Init the mac-specific data area */ | |
2477 | memset(&ctx->u.macinfo, 0, sizeof(ctx->u.macinfo)); | |
2478 | ||
478566d6 | 2479 | ctx->u.macinfo.br_ifindex = br_ifp->ifindex; |
7597ac7b MS |
2480 | ctx->u.macinfo.vtep_ip = vtep_ip; |
2481 | ctx->u.macinfo.mac = *mac; | |
2482 | ctx->u.macinfo.vid = vid; | |
2483 | ctx->u.macinfo.is_sticky = sticky; | |
2484 | ||
2485 | /* Enqueue for processing on the dplane pthread */ | |
2486 | ret = dplane_update_enqueue(ctx); | |
2487 | ||
2488 | /* Increment counter */ | |
2489 | atomic_fetch_add_explicit(&zdplane_info.dg_macs_in, 1, | |
2490 | memory_order_relaxed); | |
2491 | ||
2492 | if (ret == AOK) | |
2493 | result = ZEBRA_DPLANE_REQUEST_QUEUED; | |
2494 | else { | |
2495 | /* Error counter */ | |
2496 | atomic_fetch_add_explicit(&zdplane_info.dg_mac_errors, 1, | |
2497 | memory_order_relaxed); | |
2498 | dplane_ctx_free(&ctx); | |
2499 | } | |
2500 | ||
2501 | return result; | |
2502 | } | |
2503 | ||
931fa60c MS |
2504 | /* |
2505 | * Enqueue evpn neighbor add for the dataplane. | |
2506 | */ | |
2507 | enum zebra_dplane_result dplane_neigh_add(const struct interface *ifp, | |
2508 | const struct ipaddr *ip, | |
2509 | const struct ethaddr *mac, | |
2510 | uint32_t flags) | |
2511 | { | |
2512 | enum zebra_dplane_result result = ZEBRA_DPLANE_REQUEST_FAILURE; | |
2513 | ||
2514 | result = neigh_update_internal(DPLANE_OP_NEIGH_INSTALL, | |
4dd9d11c | 2515 | ifp, mac, ip, flags, DPLANE_NUD_NOARP); |
931fa60c MS |
2516 | |
2517 | return result; | |
2518 | } | |
2519 | ||
2520 | /* | |
2521 | * Enqueue evpn neighbor update for the dataplane. | |
2522 | */ | |
2523 | enum zebra_dplane_result dplane_neigh_update(const struct interface *ifp, | |
2524 | const struct ipaddr *ip, | |
2525 | const struct ethaddr *mac) | |
2526 | { | |
0bbd4ff4 | 2527 | enum zebra_dplane_result result; |
931fa60c MS |
2528 | |
2529 | result = neigh_update_internal(DPLANE_OP_NEIGH_UPDATE, | |
2530 | ifp, mac, ip, 0, DPLANE_NUD_PROBE); | |
2531 | ||
2532 | return result; | |
2533 | } | |
2534 | ||
2535 | /* | |
2536 | * Enqueue evpn neighbor delete for the dataplane. | |
2537 | */ | |
2538 | enum zebra_dplane_result dplane_neigh_delete(const struct interface *ifp, | |
2539 | const struct ipaddr *ip) | |
2540 | { | |
0bbd4ff4 | 2541 | enum zebra_dplane_result result; |
931fa60c MS |
2542 | |
2543 | result = neigh_update_internal(DPLANE_OP_NEIGH_DELETE, | |
2544 | ifp, NULL, ip, 0, 0); | |
2545 | ||
2546 | return result; | |
2547 | } | |
2548 | ||
0bbd4ff4 MS |
2549 | /* |
2550 | * Enqueue evpn VTEP add for the dataplane. | |
2551 | */ | |
2552 | enum zebra_dplane_result dplane_vtep_add(const struct interface *ifp, | |
2553 | const struct in_addr *ip, | |
2554 | vni_t vni) | |
2555 | { | |
2556 | enum zebra_dplane_result result; | |
2557 | struct ethaddr mac = { {0, 0, 0, 0, 0, 0} }; | |
2558 | struct ipaddr addr; | |
2559 | ||
2560 | if (IS_ZEBRA_DEBUG_VXLAN) | |
2561 | zlog_debug("Install %s into flood list for VNI %u intf %s(%u)", | |
2562 | inet_ntoa(*ip), vni, ifp->name, ifp->ifindex); | |
2563 | ||
2564 | SET_IPADDR_V4(&addr); | |
2565 | addr.ipaddr_v4 = *ip; | |
2566 | ||
2567 | result = neigh_update_internal(DPLANE_OP_VTEP_ADD, | |
2568 | ifp, &mac, &addr, 0, 0); | |
2569 | ||
2570 | return result; | |
2571 | } | |
2572 | ||
2573 | /* | |
2574 | * Enqueue evpn VTEP add for the dataplane. | |
2575 | */ | |
2576 | enum zebra_dplane_result dplane_vtep_delete(const struct interface *ifp, | |
2577 | const struct in_addr *ip, | |
2578 | vni_t vni) | |
2579 | { | |
2580 | enum zebra_dplane_result result; | |
2581 | struct ethaddr mac = { {0, 0, 0, 0, 0, 0} }; | |
2582 | struct ipaddr addr; | |
2583 | ||
2584 | if (IS_ZEBRA_DEBUG_VXLAN) | |
2585 | zlog_debug( | |
2586 | "Uninstall %s from flood list for VNI %u intf %s(%u)", | |
2587 | inet_ntoa(*ip), vni, ifp->name, ifp->ifindex); | |
2588 | ||
2589 | SET_IPADDR_V4(&addr); | |
2590 | addr.ipaddr_v4 = *ip; | |
2591 | ||
2592 | result = neigh_update_internal(DPLANE_OP_VTEP_DELETE, | |
2593 | ifp, &mac, &addr, 0, 0); | |
2594 | ||
2595 | return result; | |
2596 | } | |
2597 | ||
931fa60c MS |
2598 | /* |
2599 | * Common helper api for evpn neighbor updates | |
2600 | */ | |
2601 | static enum zebra_dplane_result | |
2602 | neigh_update_internal(enum dplane_op_e op, | |
2603 | const struct interface *ifp, | |
2604 | const struct ethaddr *mac, | |
2605 | const struct ipaddr *ip, | |
2606 | uint32_t flags, uint16_t state) | |
2607 | { | |
2608 | enum zebra_dplane_result result = ZEBRA_DPLANE_REQUEST_FAILURE; | |
2609 | int ret; | |
2610 | struct zebra_dplane_ctx *ctx = NULL; | |
2611 | struct zebra_ns *zns; | |
2612 | ||
2613 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) { | |
2614 | char buf1[ETHER_ADDR_STRLEN], buf2[PREFIX_STRLEN]; | |
2615 | ||
2616 | zlog_debug("init neigh ctx %s: ifp %s, mac %s, ip %s", | |
2617 | dplane_op2str(op), | |
2618 | prefix_mac2str(mac, buf1, sizeof(buf1)), | |
2619 | ifp->name, | |
2620 | ipaddr2str(ip, buf2, sizeof(buf2))); | |
2621 | } | |
2622 | ||
2623 | ctx = dplane_ctx_alloc(); | |
2624 | ||
2625 | ctx->zd_op = op; | |
2626 | ctx->zd_status = ZEBRA_DPLANE_REQUEST_SUCCESS; | |
2627 | ctx->zd_vrf_id = ifp->vrf_id; | |
2628 | ||
2629 | zns = zebra_ns_lookup(ifp->vrf_id); | |
2630 | dplane_ctx_ns_init(ctx, zns, false); | |
2631 | ||
2632 | strlcpy(ctx->zd_ifname, ifp->name, sizeof(ctx->zd_ifname)); | |
2633 | ctx->zd_ifindex = ifp->ifindex; | |
2634 | ||
2635 | /* Init the neighbor-specific data area */ | |
2636 | memset(&ctx->u.neigh, 0, sizeof(ctx->u.neigh)); | |
2637 | ||
2638 | ctx->u.neigh.ip_addr = *ip; | |
2639 | if (mac) | |
2640 | ctx->u.neigh.mac = *mac; | |
2641 | ctx->u.neigh.flags = flags; | |
2642 | ctx->u.neigh.state = state; | |
2643 | ||
2644 | /* Enqueue for processing on the dplane pthread */ | |
2645 | ret = dplane_update_enqueue(ctx); | |
2646 | ||
2647 | /* Increment counter */ | |
2648 | atomic_fetch_add_explicit(&zdplane_info.dg_neighs_in, 1, | |
2649 | memory_order_relaxed); | |
2650 | ||
2651 | if (ret == AOK) | |
2652 | result = ZEBRA_DPLANE_REQUEST_QUEUED; | |
2653 | else { | |
2654 | /* Error counter */ | |
2655 | atomic_fetch_add_explicit(&zdplane_info.dg_neigh_errors, 1, | |
2656 | memory_order_relaxed); | |
2657 | dplane_ctx_free(&ctx); | |
2658 | } | |
2659 | ||
2660 | return result; | |
2661 | } | |
2662 | ||
1d11b21f MS |
2663 | /* |
2664 | * Handler for 'show dplane' | |
2665 | */ | |
2666 | int dplane_show_helper(struct vty *vty, bool detailed) | |
2667 | { | |
16c628de MS |
2668 | uint64_t queued, queue_max, limit, errs, incoming, yields, |
2669 | other_errs; | |
1d11b21f | 2670 | |
4dfd7a02 | 2671 | /* Using atomics because counters are being changed in different |
c831033f | 2672 | * pthread contexts. |
4dfd7a02 | 2673 | */ |
25779064 | 2674 | incoming = atomic_load_explicit(&zdplane_info.dg_routes_in, |
1d11b21f | 2675 | memory_order_relaxed); |
91f16812 MS |
2676 | limit = atomic_load_explicit(&zdplane_info.dg_max_queued_updates, |
2677 | memory_order_relaxed); | |
25779064 | 2678 | queued = atomic_load_explicit(&zdplane_info.dg_routes_queued, |
1d11b21f | 2679 | memory_order_relaxed); |
25779064 | 2680 | queue_max = atomic_load_explicit(&zdplane_info.dg_routes_queued_max, |
4dfd7a02 | 2681 | memory_order_relaxed); |
25779064 | 2682 | errs = atomic_load_explicit(&zdplane_info.dg_route_errors, |
1d11b21f | 2683 | memory_order_relaxed); |
c831033f MS |
2684 | yields = atomic_load_explicit(&zdplane_info.dg_update_yields, |
2685 | memory_order_relaxed); | |
16c628de MS |
2686 | other_errs = atomic_load_explicit(&zdplane_info.dg_other_errors, |
2687 | memory_order_relaxed); | |
1d11b21f | 2688 | |
c831033f MS |
2689 | vty_out(vty, "Zebra dataplane:\nRoute updates: %"PRIu64"\n", |
2690 | incoming); | |
1d11b21f | 2691 | vty_out(vty, "Route update errors: %"PRIu64"\n", errs); |
16c628de | 2692 | vty_out(vty, "Other errors : %"PRIu64"\n", other_errs); |
91f16812 | 2693 | vty_out(vty, "Route update queue limit: %"PRIu64"\n", limit); |
1d11b21f | 2694 | vty_out(vty, "Route update queue depth: %"PRIu64"\n", queued); |
4dfd7a02 | 2695 | vty_out(vty, "Route update queue max: %"PRIu64"\n", queue_max); |
4280d91c MS |
2696 | vty_out(vty, "Dplane update yields: %"PRIu64"\n", yields); |
2697 | ||
2698 | incoming = atomic_load_explicit(&zdplane_info.dg_lsps_in, | |
2699 | memory_order_relaxed); | |
2700 | errs = atomic_load_explicit(&zdplane_info.dg_lsp_errors, | |
2701 | memory_order_relaxed); | |
2702 | vty_out(vty, "LSP updates: %"PRIu64"\n", incoming); | |
2703 | vty_out(vty, "LSP update errors: %"PRIu64"\n", errs); | |
2704 | ||
2705 | incoming = atomic_load_explicit(&zdplane_info.dg_pws_in, | |
2706 | memory_order_relaxed); | |
2707 | errs = atomic_load_explicit(&zdplane_info.dg_pw_errors, | |
2708 | memory_order_relaxed); | |
2709 | vty_out(vty, "PW updates: %"PRIu64"\n", incoming); | |
2710 | vty_out(vty, "PW update errors: %"PRIu64"\n", errs); | |
2711 | ||
2712 | incoming = atomic_load_explicit(&zdplane_info.dg_intf_addrs_in, | |
2713 | memory_order_relaxed); | |
2714 | errs = atomic_load_explicit(&zdplane_info.dg_intf_addr_errors, | |
2715 | memory_order_relaxed); | |
2716 | vty_out(vty, "Intf addr updates: %"PRIu64"\n", incoming); | |
2717 | vty_out(vty, "Intf addr errors: %"PRIu64"\n", errs); | |
2718 | ||
2719 | incoming = atomic_load_explicit(&zdplane_info.dg_macs_in, | |
2720 | memory_order_relaxed); | |
2721 | errs = atomic_load_explicit(&zdplane_info.dg_mac_errors, | |
2722 | memory_order_relaxed); | |
2723 | vty_out(vty, "EVPN MAC updates: %"PRIu64"\n", incoming); | |
2724 | vty_out(vty, "EVPN MAC errors: %"PRIu64"\n", errs); | |
1d11b21f | 2725 | |
931fa60c MS |
2726 | incoming = atomic_load_explicit(&zdplane_info.dg_neighs_in, |
2727 | memory_order_relaxed); | |
2728 | errs = atomic_load_explicit(&zdplane_info.dg_neigh_errors, | |
2729 | memory_order_relaxed); | |
2730 | vty_out(vty, "EVPN neigh updates: %"PRIu64"\n", incoming); | |
2731 | vty_out(vty, "EVPN neigh errors: %"PRIu64"\n", errs); | |
2732 | ||
1d11b21f MS |
2733 | return CMD_SUCCESS; |
2734 | } | |
2735 | ||
2736 | /* | |
2737 | * Handler for 'show dplane providers' | |
2738 | */ | |
2739 | int dplane_show_provs_helper(struct vty *vty, bool detailed) | |
2740 | { | |
c831033f MS |
2741 | struct zebra_dplane_provider *prov; |
2742 | uint64_t in, in_max, out, out_max; | |
2743 | ||
2744 | vty_out(vty, "Zebra dataplane providers:\n"); | |
2745 | ||
2746 | DPLANE_LOCK(); | |
2747 | prov = TAILQ_FIRST(&zdplane_info.dg_providers_q); | |
2748 | DPLANE_UNLOCK(); | |
2749 | ||
2750 | /* Show counters, useful info from each registered provider */ | |
2751 | while (prov) { | |
2752 | ||
2753 | in = atomic_load_explicit(&prov->dp_in_counter, | |
2754 | memory_order_relaxed); | |
2755 | in_max = atomic_load_explicit(&prov->dp_in_max, | |
2756 | memory_order_relaxed); | |
2757 | out = atomic_load_explicit(&prov->dp_out_counter, | |
2758 | memory_order_relaxed); | |
2759 | out_max = atomic_load_explicit(&prov->dp_out_max, | |
2760 | memory_order_relaxed); | |
2761 | ||
c9d17fe8 MS |
2762 | vty_out(vty, "%s (%u): in: %"PRIu64", q_max: %"PRIu64", " |
2763 | "out: %"PRIu64", q_max: %"PRIu64"\n", | |
c831033f MS |
2764 | prov->dp_name, prov->dp_id, in, in_max, out, out_max); |
2765 | ||
2766 | DPLANE_LOCK(); | |
2767 | prov = TAILQ_NEXT(prov, dp_prov_link); | |
2768 | DPLANE_UNLOCK(); | |
2769 | } | |
1d11b21f MS |
2770 | |
2771 | return CMD_SUCCESS; | |
2772 | } | |
2773 | ||
f26730e1 MS |
2774 | /* |
2775 | * Helper for 'show run' etc. | |
2776 | */ | |
2777 | int dplane_config_write_helper(struct vty *vty) | |
2778 | { | |
2779 | if (zdplane_info.dg_max_queued_updates != DPLANE_DEFAULT_MAX_QUEUED) | |
2780 | vty_out(vty, "zebra dplane limit %u\n", | |
2781 | zdplane_info.dg_max_queued_updates); | |
2782 | ||
2783 | return 0; | |
2784 | } | |
2785 | ||
b8e0423d MS |
2786 | /* |
2787 | * Provider registration | |
2788 | */ | |
2789 | int dplane_provider_register(const char *name, | |
c831033f MS |
2790 | enum dplane_provider_prio prio, |
2791 | int flags, | |
1dd4ea8a | 2792 | int (*start_fp)(struct zebra_dplane_provider *), |
4c206c8f MS |
2793 | int (*fp)(struct zebra_dplane_provider *), |
2794 | int (*fini_fp)(struct zebra_dplane_provider *, | |
2795 | bool early), | |
1ff8a248 MS |
2796 | void *data, |
2797 | struct zebra_dplane_provider **prov_p) | |
b8e0423d MS |
2798 | { |
2799 | int ret = 0; | |
6fb51ccb | 2800 | struct zebra_dplane_provider *p = NULL, *last; |
b8e0423d MS |
2801 | |
2802 | /* Validate */ | |
2803 | if (fp == NULL) { | |
2804 | ret = EINVAL; | |
2805 | goto done; | |
2806 | } | |
2807 | ||
2808 | if (prio <= DPLANE_PRIO_NONE || | |
1bcea841 | 2809 | prio > DPLANE_PRIO_LAST) { |
b8e0423d MS |
2810 | ret = EINVAL; |
2811 | goto done; | |
2812 | } | |
2813 | ||
2814 | /* Allocate and init new provider struct */ | |
25779064 | 2815 | p = XCALLOC(MTYPE_DP_PROV, sizeof(struct zebra_dplane_provider)); |
b8e0423d | 2816 | |
c831033f MS |
2817 | pthread_mutex_init(&(p->dp_mutex), NULL); |
2818 | TAILQ_INIT(&(p->dp_ctx_in_q)); | |
2819 | TAILQ_INIT(&(p->dp_ctx_out_q)); | |
b8e0423d | 2820 | |
932dbb4d | 2821 | p->dp_flags = flags; |
b8e0423d MS |
2822 | p->dp_priority = prio; |
2823 | p->dp_fp = fp; | |
1dd4ea8a | 2824 | p->dp_start = start_fp; |
18c37974 | 2825 | p->dp_fini = fini_fp; |
c831033f | 2826 | p->dp_data = data; |
18c37974 | 2827 | |
c831033f | 2828 | /* Lock - the dplane pthread may be running */ |
18c37974 | 2829 | DPLANE_LOCK(); |
b8e0423d | 2830 | |
25779064 | 2831 | p->dp_id = ++zdplane_info.dg_provider_id; |
b8e0423d | 2832 | |
c831033f MS |
2833 | if (name) |
2834 | strlcpy(p->dp_name, name, DPLANE_PROVIDER_NAMELEN); | |
2835 | else | |
2836 | snprintf(p->dp_name, DPLANE_PROVIDER_NAMELEN, | |
2837 | "provider-%u", p->dp_id); | |
2838 | ||
b8e0423d | 2839 | /* Insert into list ordered by priority */ |
c831033f | 2840 | TAILQ_FOREACH(last, &zdplane_info.dg_providers_q, dp_prov_link) { |
5709131c | 2841 | if (last->dp_priority > p->dp_priority) |
b8e0423d | 2842 | break; |
b8e0423d MS |
2843 | } |
2844 | ||
5709131c | 2845 | if (last) |
c831033f | 2846 | TAILQ_INSERT_BEFORE(last, p, dp_prov_link); |
5709131c | 2847 | else |
25779064 | 2848 | TAILQ_INSERT_TAIL(&zdplane_info.dg_providers_q, p, |
c831033f | 2849 | dp_prov_link); |
b8e0423d | 2850 | |
18c37974 MS |
2851 | /* And unlock */ |
2852 | DPLANE_UNLOCK(); | |
2853 | ||
c831033f MS |
2854 | if (IS_ZEBRA_DEBUG_DPLANE) |
2855 | zlog_debug("dplane: registered new provider '%s' (%u), prio %d", | |
2856 | p->dp_name, p->dp_id, p->dp_priority); | |
2857 | ||
b8e0423d | 2858 | done: |
1ff8a248 MS |
2859 | if (prov_p) |
2860 | *prov_p = p; | |
2861 | ||
5709131c | 2862 | return ret; |
b8e0423d MS |
2863 | } |
2864 | ||
c831033f MS |
2865 | /* Accessors for provider attributes */ |
2866 | const char *dplane_provider_get_name(const struct zebra_dplane_provider *prov) | |
2867 | { | |
2868 | return prov->dp_name; | |
2869 | } | |
2870 | ||
2871 | uint32_t dplane_provider_get_id(const struct zebra_dplane_provider *prov) | |
2872 | { | |
2873 | return prov->dp_id; | |
2874 | } | |
2875 | ||
2876 | void *dplane_provider_get_data(const struct zebra_dplane_provider *prov) | |
2877 | { | |
2878 | return prov->dp_data; | |
2879 | } | |
2880 | ||
2881 | int dplane_provider_get_work_limit(const struct zebra_dplane_provider *prov) | |
2882 | { | |
2883 | return zdplane_info.dg_updates_per_cycle; | |
2884 | } | |
2885 | ||
ad6aad4d MS |
2886 | /* Lock/unlock a provider's mutex - iff the provider was registered with |
2887 | * the THREADED flag. | |
2888 | */ | |
2889 | void dplane_provider_lock(struct zebra_dplane_provider *prov) | |
2890 | { | |
2891 | if (dplane_provider_is_threaded(prov)) | |
2892 | DPLANE_PROV_LOCK(prov); | |
2893 | } | |
2894 | ||
2895 | void dplane_provider_unlock(struct zebra_dplane_provider *prov) | |
2896 | { | |
2897 | if (dplane_provider_is_threaded(prov)) | |
2898 | DPLANE_PROV_UNLOCK(prov); | |
2899 | } | |
2900 | ||
c831033f MS |
2901 | /* |
2902 | * Dequeue and maintain associated counter | |
2903 | */ | |
2904 | struct zebra_dplane_ctx *dplane_provider_dequeue_in_ctx( | |
2905 | struct zebra_dplane_provider *prov) | |
2906 | { | |
2907 | struct zebra_dplane_ctx *ctx = NULL; | |
2908 | ||
ad6aad4d | 2909 | dplane_provider_lock(prov); |
c831033f MS |
2910 | |
2911 | ctx = TAILQ_FIRST(&(prov->dp_ctx_in_q)); | |
2912 | if (ctx) { | |
2913 | TAILQ_REMOVE(&(prov->dp_ctx_in_q), ctx, zd_q_entries); | |
c9d17fe8 MS |
2914 | |
2915 | atomic_fetch_sub_explicit(&prov->dp_in_queued, 1, | |
2916 | memory_order_relaxed); | |
c831033f MS |
2917 | } |
2918 | ||
ad6aad4d | 2919 | dplane_provider_unlock(prov); |
c831033f MS |
2920 | |
2921 | return ctx; | |
2922 | } | |
2923 | ||
2924 | /* | |
2925 | * Dequeue work to a list, return count | |
2926 | */ | |
2927 | int dplane_provider_dequeue_in_list(struct zebra_dplane_provider *prov, | |
2928 | struct dplane_ctx_q *listp) | |
2929 | { | |
2930 | int limit, ret; | |
2931 | struct zebra_dplane_ctx *ctx; | |
2932 | ||
2933 | limit = zdplane_info.dg_updates_per_cycle; | |
2934 | ||
ad6aad4d | 2935 | dplane_provider_lock(prov); |
c831033f MS |
2936 | |
2937 | for (ret = 0; ret < limit; ret++) { | |
2938 | ctx = TAILQ_FIRST(&(prov->dp_ctx_in_q)); | |
2939 | if (ctx) { | |
2940 | TAILQ_REMOVE(&(prov->dp_ctx_in_q), ctx, zd_q_entries); | |
2941 | ||
2942 | TAILQ_INSERT_TAIL(listp, ctx, zd_q_entries); | |
2943 | } else { | |
2944 | break; | |
2945 | } | |
2946 | } | |
2947 | ||
c9d17fe8 MS |
2948 | if (ret > 0) |
2949 | atomic_fetch_sub_explicit(&prov->dp_in_queued, ret, | |
2950 | memory_order_relaxed); | |
2951 | ||
ad6aad4d | 2952 | dplane_provider_unlock(prov); |
c831033f MS |
2953 | |
2954 | return ret; | |
2955 | } | |
2956 | ||
2957 | /* | |
2958 | * Enqueue and maintain associated counter | |
2959 | */ | |
2960 | void dplane_provider_enqueue_out_ctx(struct zebra_dplane_provider *prov, | |
2961 | struct zebra_dplane_ctx *ctx) | |
2962 | { | |
ad6aad4d | 2963 | dplane_provider_lock(prov); |
c831033f MS |
2964 | |
2965 | TAILQ_INSERT_TAIL(&(prov->dp_ctx_out_q), ctx, | |
2966 | zd_q_entries); | |
2967 | ||
ad6aad4d | 2968 | dplane_provider_unlock(prov); |
c831033f MS |
2969 | |
2970 | atomic_fetch_add_explicit(&(prov->dp_out_counter), 1, | |
2971 | memory_order_relaxed); | |
2972 | } | |
2973 | ||
62b8bb7a MS |
2974 | /* |
2975 | * Accessor for provider object | |
2976 | */ | |
c831033f MS |
2977 | bool dplane_provider_is_threaded(const struct zebra_dplane_provider *prov) |
2978 | { | |
2979 | return (prov->dp_flags & DPLANE_PROV_FLAG_THREADED); | |
2980 | } | |
2981 | ||
62b8bb7a MS |
2982 | /* |
2983 | * Internal helper that copies information from a zebra ns object; this is | |
2984 | * called in the zebra main pthread context as part of dplane ctx init. | |
2985 | */ | |
2986 | static void dplane_info_from_zns(struct zebra_dplane_info *ns_info, | |
2987 | struct zebra_ns *zns) | |
2988 | { | |
2989 | ns_info->ns_id = zns->ns_id; | |
2990 | ||
2991 | #if defined(HAVE_NETLINK) | |
2992 | ns_info->is_cmd = true; | |
2993 | ns_info->nls = zns->netlink_dplane; | |
2994 | #endif /* NETLINK */ | |
2995 | } | |
2996 | ||
c831033f MS |
2997 | /* |
2998 | * Provider api to signal that work/events are available | |
2999 | * for the dataplane pthread. | |
3000 | */ | |
3001 | int dplane_provider_work_ready(void) | |
3002 | { | |
e5a60d82 MS |
3003 | /* Note that during zebra startup, we may be offered work before |
3004 | * the dataplane pthread (and thread-master) are ready. We want to | |
3005 | * enqueue the work, but the event-scheduling machinery may not be | |
3006 | * available. | |
3007 | */ | |
3008 | if (zdplane_info.dg_run) { | |
3009 | thread_add_event(zdplane_info.dg_master, | |
3010 | dplane_thread_loop, NULL, 0, | |
3011 | &zdplane_info.dg_t_update); | |
3012 | } | |
c831033f MS |
3013 | |
3014 | return AOK; | |
3015 | } | |
3016 | ||
593e4eb1 MS |
3017 | /* |
3018 | * Enqueue a context directly to zebra main. | |
3019 | */ | |
3020 | void dplane_provider_enqueue_to_zebra(struct zebra_dplane_ctx *ctx) | |
3021 | { | |
3022 | struct dplane_ctx_q temp_list; | |
3023 | ||
3024 | /* Zebra's api takes a list, so we need to use a temporary list */ | |
3025 | TAILQ_INIT(&temp_list); | |
3026 | ||
3027 | TAILQ_INSERT_TAIL(&temp_list, ctx, zd_q_entries); | |
3028 | (zdplane_info.dg_results_cb)(&temp_list); | |
3029 | } | |
3030 | ||
7cdb1a84 | 3031 | /* |
c831033f | 3032 | * Kernel dataplane provider |
7cdb1a84 | 3033 | */ |
c831033f | 3034 | |
16c628de MS |
3035 | /* |
3036 | * Handler for kernel LSP updates | |
3037 | */ | |
3038 | static enum zebra_dplane_result | |
3039 | kernel_dplane_lsp_update(struct zebra_dplane_ctx *ctx) | |
3040 | { | |
3041 | enum zebra_dplane_result res; | |
3042 | ||
3043 | /* Call into the synchronous kernel-facing code here */ | |
3044 | res = kernel_lsp_update(ctx); | |
3045 | ||
3046 | if (res != ZEBRA_DPLANE_REQUEST_SUCCESS) | |
3047 | atomic_fetch_add_explicit( | |
3048 | &zdplane_info.dg_lsp_errors, 1, | |
3049 | memory_order_relaxed); | |
3050 | ||
3051 | return res; | |
3052 | } | |
3053 | ||
c10a646d MS |
3054 | /* |
3055 | * Handler for kernel pseudowire updates | |
3056 | */ | |
3057 | static enum zebra_dplane_result | |
3058 | kernel_dplane_pw_update(struct zebra_dplane_ctx *ctx) | |
3059 | { | |
3060 | enum zebra_dplane_result res; | |
3061 | ||
3062 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) | |
3063 | zlog_debug("Dplane pw %s: op %s af %d loc: %u rem: %u", | |
7c7ef4a8 | 3064 | dplane_ctx_get_ifname(ctx), |
c10a646d MS |
3065 | dplane_op2str(ctx->zd_op), |
3066 | dplane_ctx_get_pw_af(ctx), | |
3067 | dplane_ctx_get_pw_local_label(ctx), | |
3068 | dplane_ctx_get_pw_remote_label(ctx)); | |
3069 | ||
3070 | res = kernel_pw_update(ctx); | |
3071 | ||
3072 | if (res != ZEBRA_DPLANE_REQUEST_SUCCESS) | |
3073 | atomic_fetch_add_explicit( | |
3074 | &zdplane_info.dg_pw_errors, 1, | |
3075 | memory_order_relaxed); | |
3076 | ||
3077 | return res; | |
3078 | } | |
3079 | ||
16c628de MS |
3080 | /* |
3081 | * Handler for kernel route updates | |
3082 | */ | |
3083 | static enum zebra_dplane_result | |
3084 | kernel_dplane_route_update(struct zebra_dplane_ctx *ctx) | |
3085 | { | |
3086 | enum zebra_dplane_result res; | |
3087 | ||
3088 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) { | |
3089 | char dest_str[PREFIX_STRLEN]; | |
3090 | ||
3091 | prefix2str(dplane_ctx_get_dest(ctx), | |
3092 | dest_str, sizeof(dest_str)); | |
3093 | ||
3094 | zlog_debug("%u:%s Dplane route update ctx %p op %s", | |
3095 | dplane_ctx_get_vrf(ctx), dest_str, | |
3096 | ctx, dplane_op2str(dplane_ctx_get_op(ctx))); | |
3097 | } | |
3098 | ||
3099 | /* Call into the synchronous kernel-facing code here */ | |
3100 | res = kernel_route_update(ctx); | |
3101 | ||
3102 | if (res != ZEBRA_DPLANE_REQUEST_SUCCESS) | |
3103 | atomic_fetch_add_explicit( | |
3104 | &zdplane_info.dg_route_errors, 1, | |
3105 | memory_order_relaxed); | |
3106 | ||
3107 | return res; | |
3108 | } | |
3109 | ||
64168803 MS |
3110 | /* |
3111 | * Handler for kernel-facing interface address updates | |
3112 | */ | |
3113 | static enum zebra_dplane_result | |
3114 | kernel_dplane_address_update(struct zebra_dplane_ctx *ctx) | |
3115 | { | |
3116 | enum zebra_dplane_result res; | |
3117 | ||
64168803 MS |
3118 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) { |
3119 | char dest_str[PREFIX_STRLEN]; | |
3120 | ||
3121 | prefix2str(dplane_ctx_get_intf_addr(ctx), dest_str, | |
3122 | sizeof(dest_str)); | |
3123 | ||
3124 | zlog_debug("Dplane intf %s, idx %u, addr %s", | |
3125 | dplane_op2str(dplane_ctx_get_op(ctx)), | |
3126 | dplane_ctx_get_ifindex(ctx), dest_str); | |
3127 | } | |
3128 | ||
3129 | res = kernel_address_update_ctx(ctx); | |
3130 | ||
3131 | if (res != ZEBRA_DPLANE_REQUEST_SUCCESS) | |
3132 | atomic_fetch_add_explicit(&zdplane_info.dg_intf_addr_errors, | |
3133 | 1, memory_order_relaxed); | |
3134 | ||
3135 | return res; | |
3136 | } | |
3137 | ||
f820d025 SW |
3138 | /** |
3139 | * kernel_dplane_nexthop_update() - Handler for kernel nexthop updates | |
3140 | * | |
3141 | * @ctx: Dataplane context | |
3142 | * | |
3143 | * Return: Dataplane result flag | |
3144 | */ | |
3145 | static enum zebra_dplane_result | |
3146 | kernel_dplane_nexthop_update(struct zebra_dplane_ctx *ctx) | |
3147 | { | |
3148 | enum zebra_dplane_result res; | |
3149 | ||
3150 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) { | |
3151 | zlog_debug("ID (%u) Dplane nexthop update ctx %p op %s", | |
0c8215cb | 3152 | dplane_ctx_get_nhe_id(ctx), ctx, |
f820d025 SW |
3153 | dplane_op2str(dplane_ctx_get_op(ctx))); |
3154 | } | |
3155 | ||
3156 | res = kernel_nexthop_update(ctx); | |
3157 | ||
3158 | if (res != ZEBRA_DPLANE_REQUEST_SUCCESS) | |
3159 | atomic_fetch_add_explicit(&zdplane_info.dg_nexthop_errors, 1, | |
3160 | memory_order_relaxed); | |
3161 | ||
3162 | return res; | |
3163 | } | |
3164 | ||
036d93c0 | 3165 | /* |
931fa60c | 3166 | * Handler for kernel-facing EVPN MAC address updates |
036d93c0 MS |
3167 | */ |
3168 | static enum zebra_dplane_result | |
3169 | kernel_dplane_mac_update(struct zebra_dplane_ctx *ctx) | |
3170 | { | |
3171 | enum zebra_dplane_result res; | |
3172 | ||
3173 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) { | |
3174 | char buf[ETHER_ADDR_STRLEN]; | |
3175 | ||
3176 | prefix_mac2str(dplane_ctx_mac_get_addr(ctx), buf, | |
3177 | sizeof(buf)); | |
3178 | ||
3179 | zlog_debug("Dplane %s, mac %s, ifindex %u", | |
3180 | dplane_op2str(dplane_ctx_get_op(ctx)), | |
3181 | buf, dplane_ctx_get_ifindex(ctx)); | |
3182 | } | |
3183 | ||
3184 | res = kernel_mac_update_ctx(ctx); | |
3185 | ||
3186 | if (res != ZEBRA_DPLANE_REQUEST_SUCCESS) | |
3187 | atomic_fetch_add_explicit(&zdplane_info.dg_mac_errors, | |
3188 | 1, memory_order_relaxed); | |
3189 | ||
3190 | return res; | |
3191 | } | |
3192 | ||
931fa60c MS |
3193 | /* |
3194 | * Handler for kernel-facing EVPN neighbor updates | |
3195 | */ | |
3196 | static enum zebra_dplane_result | |
3197 | kernel_dplane_neigh_update(struct zebra_dplane_ctx *ctx) | |
3198 | { | |
3199 | enum zebra_dplane_result res; | |
3200 | ||
3201 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) { | |
3202 | char buf[PREFIX_STRLEN]; | |
3203 | ||
3204 | ipaddr2str(dplane_ctx_neigh_get_ipaddr(ctx), buf, | |
3205 | sizeof(buf)); | |
3206 | ||
3207 | zlog_debug("Dplane %s, ip %s, ifindex %u", | |
3208 | dplane_op2str(dplane_ctx_get_op(ctx)), | |
3209 | buf, dplane_ctx_get_ifindex(ctx)); | |
3210 | } | |
3211 | ||
3212 | res = kernel_neigh_update_ctx(ctx); | |
3213 | ||
3214 | if (res != ZEBRA_DPLANE_REQUEST_SUCCESS) | |
3215 | atomic_fetch_add_explicit(&zdplane_info.dg_neigh_errors, | |
3216 | 1, memory_order_relaxed); | |
3217 | ||
3218 | return res; | |
3219 | } | |
3220 | ||
c831033f MS |
3221 | /* |
3222 | * Kernel provider callback | |
3223 | */ | |
3224 | static int kernel_dplane_process_func(struct zebra_dplane_provider *prov) | |
7cdb1a84 | 3225 | { |
c831033f MS |
3226 | enum zebra_dplane_result res; |
3227 | struct zebra_dplane_ctx *ctx; | |
3228 | int counter, limit; | |
7cdb1a84 | 3229 | |
c831033f | 3230 | limit = dplane_provider_get_work_limit(prov); |
7cdb1a84 | 3231 | |
c831033f MS |
3232 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) |
3233 | zlog_debug("dplane provider '%s': processing", | |
3234 | dplane_provider_get_name(prov)); | |
7cdb1a84 | 3235 | |
c831033f | 3236 | for (counter = 0; counter < limit; counter++) { |
91f16812 | 3237 | |
c831033f MS |
3238 | ctx = dplane_provider_dequeue_in_ctx(prov); |
3239 | if (ctx == NULL) | |
3240 | break; | |
d8c16a95 | 3241 | |
9677961e MS |
3242 | /* A previous provider plugin may have asked to skip the |
3243 | * kernel update. | |
3244 | */ | |
3245 | if (dplane_ctx_is_skip_kernel(ctx)) { | |
3246 | res = ZEBRA_DPLANE_REQUEST_SUCCESS; | |
3247 | goto skip_one; | |
3248 | } | |
3249 | ||
16c628de MS |
3250 | /* Dispatch to appropriate kernel-facing apis */ |
3251 | switch (dplane_ctx_get_op(ctx)) { | |
1d11b21f | 3252 | |
16c628de MS |
3253 | case DPLANE_OP_ROUTE_INSTALL: |
3254 | case DPLANE_OP_ROUTE_UPDATE: | |
3255 | case DPLANE_OP_ROUTE_DELETE: | |
3256 | res = kernel_dplane_route_update(ctx); | |
3257 | break; | |
d8c16a95 | 3258 | |
f820d025 SW |
3259 | case DPLANE_OP_NH_INSTALL: |
3260 | case DPLANE_OP_NH_UPDATE: | |
3261 | case DPLANE_OP_NH_DELETE: | |
3262 | res = kernel_dplane_nexthop_update(ctx); | |
3263 | break; | |
3264 | ||
16c628de MS |
3265 | case DPLANE_OP_LSP_INSTALL: |
3266 | case DPLANE_OP_LSP_UPDATE: | |
3267 | case DPLANE_OP_LSP_DELETE: | |
3268 | res = kernel_dplane_lsp_update(ctx); | |
3269 | break; | |
d8c16a95 | 3270 | |
c10a646d MS |
3271 | case DPLANE_OP_PW_INSTALL: |
3272 | case DPLANE_OP_PW_UNINSTALL: | |
3273 | res = kernel_dplane_pw_update(ctx); | |
3274 | break; | |
3275 | ||
64168803 MS |
3276 | case DPLANE_OP_ADDR_INSTALL: |
3277 | case DPLANE_OP_ADDR_UNINSTALL: | |
3278 | res = kernel_dplane_address_update(ctx); | |
3279 | break; | |
3280 | ||
036d93c0 MS |
3281 | case DPLANE_OP_MAC_INSTALL: |
3282 | case DPLANE_OP_MAC_DELETE: | |
3283 | res = kernel_dplane_mac_update(ctx); | |
3284 | break; | |
3285 | ||
931fa60c MS |
3286 | case DPLANE_OP_NEIGH_INSTALL: |
3287 | case DPLANE_OP_NEIGH_UPDATE: | |
3288 | case DPLANE_OP_NEIGH_DELETE: | |
0bbd4ff4 MS |
3289 | case DPLANE_OP_VTEP_ADD: |
3290 | case DPLANE_OP_VTEP_DELETE: | |
931fa60c MS |
3291 | res = kernel_dplane_neigh_update(ctx); |
3292 | break; | |
3293 | ||
104e3ad9 | 3294 | /* Ignore 'notifications' - no-op */ |
cf363e1b MS |
3295 | case DPLANE_OP_SYS_ROUTE_ADD: |
3296 | case DPLANE_OP_SYS_ROUTE_DELETE: | |
54818e3b | 3297 | case DPLANE_OP_ROUTE_NOTIFY: |
104e3ad9 | 3298 | case DPLANE_OP_LSP_NOTIFY: |
cf363e1b MS |
3299 | res = ZEBRA_DPLANE_REQUEST_SUCCESS; |
3300 | break; | |
3301 | ||
16c628de | 3302 | default: |
c831033f | 3303 | atomic_fetch_add_explicit( |
16c628de | 3304 | &zdplane_info.dg_other_errors, 1, |
c831033f | 3305 | memory_order_relaxed); |
d8c16a95 | 3306 | |
16c628de MS |
3307 | res = ZEBRA_DPLANE_REQUEST_FAILURE; |
3308 | break; | |
3309 | } | |
3310 | ||
9677961e | 3311 | skip_one: |
c831033f MS |
3312 | dplane_ctx_set_status(ctx, res); |
3313 | ||
3314 | dplane_provider_enqueue_out_ctx(prov, ctx); | |
3315 | } | |
3316 | ||
3317 | /* Ensure that we'll run the work loop again if there's still | |
3318 | * more work to do. | |
3319 | */ | |
3320 | if (counter >= limit) { | |
3321 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) | |
3322 | zlog_debug("dplane provider '%s' reached max updates %d", | |
3323 | dplane_provider_get_name(prov), counter); | |
3324 | ||
3325 | atomic_fetch_add_explicit(&zdplane_info.dg_update_yields, | |
3326 | 1, memory_order_relaxed); | |
3327 | ||
3328 | dplane_provider_work_ready(); | |
3329 | } | |
3330 | ||
3331 | return 0; | |
3332 | } | |
3333 | ||
1e20238a | 3334 | #ifdef DPLANE_TEST_PROVIDER |
e5a60d82 | 3335 | |
c831033f MS |
3336 | /* |
3337 | * Test dataplane provider plugin | |
3338 | */ | |
3339 | ||
3340 | /* | |
3341 | * Test provider process callback | |
3342 | */ | |
3343 | static int test_dplane_process_func(struct zebra_dplane_provider *prov) | |
3344 | { | |
3345 | struct zebra_dplane_ctx *ctx; | |
3346 | int counter, limit; | |
3347 | ||
3348 | /* Just moving from 'in' queue to 'out' queue */ | |
3349 | ||
3350 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) | |
3351 | zlog_debug("dplane provider '%s': processing", | |
3352 | dplane_provider_get_name(prov)); | |
3353 | ||
3354 | limit = dplane_provider_get_work_limit(prov); | |
3355 | ||
3356 | for (counter = 0; counter < limit; counter++) { | |
3357 | ||
3358 | ctx = dplane_provider_dequeue_in_ctx(prov); | |
3359 | if (ctx == NULL) | |
3360 | break; | |
3361 | ||
cf363e1b MS |
3362 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) |
3363 | zlog_debug("dplane provider '%s': op %s", | |
3364 | dplane_provider_get_name(prov), | |
3365 | dplane_op2str(dplane_ctx_get_op(ctx))); | |
3366 | ||
c831033f MS |
3367 | dplane_ctx_set_status(ctx, ZEBRA_DPLANE_REQUEST_SUCCESS); |
3368 | ||
3369 | dplane_provider_enqueue_out_ctx(prov, ctx); | |
3370 | } | |
3371 | ||
c9d17fe8 MS |
3372 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) |
3373 | zlog_debug("dplane provider '%s': processed %d", | |
3374 | dplane_provider_get_name(prov), counter); | |
3375 | ||
c831033f MS |
3376 | /* Ensure that we'll run the work loop again if there's still |
3377 | * more work to do. | |
3378 | */ | |
3379 | if (counter >= limit) | |
3380 | dplane_provider_work_ready(); | |
3381 | ||
3382 | return 0; | |
3383 | } | |
3384 | ||
3385 | /* | |
3386 | * Test provider shutdown/fini callback | |
3387 | */ | |
3388 | static int test_dplane_shutdown_func(struct zebra_dplane_provider *prov, | |
3389 | bool early) | |
3390 | { | |
3391 | if (IS_ZEBRA_DEBUG_DPLANE) | |
3392 | zlog_debug("dplane provider '%s': %sshutdown", | |
3393 | dplane_provider_get_name(prov), | |
3394 | early ? "early " : ""); | |
3395 | ||
3396 | return 0; | |
3397 | } | |
e5a60d82 | 3398 | #endif /* DPLANE_TEST_PROVIDER */ |
c831033f MS |
3399 | |
3400 | /* | |
3401 | * Register default kernel provider | |
3402 | */ | |
3403 | static void dplane_provider_init(void) | |
3404 | { | |
3405 | int ret; | |
3406 | ||
3407 | ret = dplane_provider_register("Kernel", | |
3408 | DPLANE_PRIO_KERNEL, | |
1dd4ea8a | 3409 | DPLANE_PROV_FLAGS_DEFAULT, NULL, |
c831033f MS |
3410 | kernel_dplane_process_func, |
3411 | NULL, | |
1ff8a248 | 3412 | NULL, NULL); |
c831033f MS |
3413 | |
3414 | if (ret != AOK) | |
3415 | zlog_err("Unable to register kernel dplane provider: %d", | |
3416 | ret); | |
3417 | ||
1e20238a | 3418 | #ifdef DPLANE_TEST_PROVIDER |
e5a60d82 | 3419 | /* Optional test provider ... */ |
c831033f MS |
3420 | ret = dplane_provider_register("Test", |
3421 | DPLANE_PRIO_PRE_KERNEL, | |
1dd4ea8a | 3422 | DPLANE_PROV_FLAGS_DEFAULT, NULL, |
c831033f MS |
3423 | test_dplane_process_func, |
3424 | test_dplane_shutdown_func, | |
1ff8a248 | 3425 | NULL /* data */, NULL); |
c831033f MS |
3426 | |
3427 | if (ret != AOK) | |
3428 | zlog_err("Unable to register test dplane provider: %d", | |
3429 | ret); | |
e5a60d82 | 3430 | #endif /* DPLANE_TEST_PROVIDER */ |
7cdb1a84 MS |
3431 | } |
3432 | ||
4dfd7a02 MS |
3433 | /* Indicates zebra shutdown/exit is in progress. Some operations may be |
3434 | * simplified or skipped during shutdown processing. | |
3435 | */ | |
3436 | bool dplane_is_in_shutdown(void) | |
3437 | { | |
25779064 | 3438 | return zdplane_info.dg_is_shutdown; |
4dfd7a02 MS |
3439 | } |
3440 | ||
3441 | /* | |
3442 | * Early or pre-shutdown, de-init notification api. This runs pretty | |
3443 | * early during zebra shutdown, as a signal to stop new work and prepare | |
3444 | * for updates generated by shutdown/cleanup activity, as zebra tries to | |
3445 | * remove everything it's responsible for. | |
c9d17fe8 | 3446 | * NB: This runs in the main zebra pthread context. |
4dfd7a02 MS |
3447 | */ |
3448 | void zebra_dplane_pre_finish(void) | |
3449 | { | |
3450 | if (IS_ZEBRA_DEBUG_DPLANE) | |
3451 | zlog_debug("Zebra dataplane pre-fini called"); | |
3452 | ||
25779064 | 3453 | zdplane_info.dg_is_shutdown = true; |
4dfd7a02 | 3454 | |
c9d17fe8 | 3455 | /* TODO -- Notify provider(s) of pending shutdown */ |
4dfd7a02 MS |
3456 | } |
3457 | ||
3458 | /* | |
3459 | * Utility to determine whether work remains enqueued within the dplane; | |
3460 | * used during system shutdown processing. | |
3461 | */ | |
3462 | static bool dplane_work_pending(void) | |
3463 | { | |
c9d17fe8 | 3464 | bool ret = false; |
25779064 | 3465 | struct zebra_dplane_ctx *ctx; |
c9d17fe8 | 3466 | struct zebra_dplane_provider *prov; |
4dfd7a02 | 3467 | |
c831033f MS |
3468 | /* TODO -- just checking incoming/pending work for now, must check |
3469 | * providers | |
3470 | */ | |
4dfd7a02 MS |
3471 | DPLANE_LOCK(); |
3472 | { | |
3fe4ccc4 | 3473 | ctx = TAILQ_FIRST(&zdplane_info.dg_update_ctx_q); |
c9d17fe8 | 3474 | prov = TAILQ_FIRST(&zdplane_info.dg_providers_q); |
4dfd7a02 MS |
3475 | } |
3476 | DPLANE_UNLOCK(); | |
3477 | ||
c9d17fe8 MS |
3478 | if (ctx != NULL) { |
3479 | ret = true; | |
3480 | goto done; | |
3481 | } | |
3482 | ||
3483 | while (prov) { | |
3484 | ||
ad6aad4d | 3485 | dplane_provider_lock(prov); |
c9d17fe8 MS |
3486 | |
3487 | ctx = TAILQ_FIRST(&(prov->dp_ctx_in_q)); | |
3488 | if (ctx == NULL) | |
3489 | ctx = TAILQ_FIRST(&(prov->dp_ctx_out_q)); | |
3490 | ||
ad6aad4d | 3491 | dplane_provider_unlock(prov); |
c9d17fe8 MS |
3492 | |
3493 | if (ctx != NULL) | |
3494 | break; | |
3495 | ||
3496 | DPLANE_LOCK(); | |
3497 | prov = TAILQ_NEXT(prov, dp_prov_link); | |
3498 | DPLANE_UNLOCK(); | |
3499 | } | |
3500 | ||
3501 | if (ctx != NULL) | |
3502 | ret = true; | |
3503 | ||
3504 | done: | |
3505 | return ret; | |
4dfd7a02 MS |
3506 | } |
3507 | ||
3508 | /* | |
3509 | * Shutdown-time intermediate callback, used to determine when all pending | |
3510 | * in-flight updates are done. If there's still work to do, reschedules itself. | |
3511 | * If all work is done, schedules an event to the main zebra thread for | |
3512 | * final zebra shutdown. | |
3513 | * This runs in the dplane pthread context. | |
3514 | */ | |
3515 | static int dplane_check_shutdown_status(struct thread *event) | |
3516 | { | |
3517 | if (IS_ZEBRA_DEBUG_DPLANE) | |
3518 | zlog_debug("Zebra dataplane shutdown status check called"); | |
3519 | ||
3520 | if (dplane_work_pending()) { | |
3521 | /* Reschedule dplane check on a short timer */ | |
25779064 | 3522 | thread_add_timer_msec(zdplane_info.dg_master, |
4dfd7a02 MS |
3523 | dplane_check_shutdown_status, |
3524 | NULL, 100, | |
25779064 | 3525 | &zdplane_info.dg_t_shutdown_check); |
4dfd7a02 MS |
3526 | |
3527 | /* TODO - give up and stop waiting after a short time? */ | |
3528 | ||
3529 | } else { | |
3530 | /* We appear to be done - schedule a final callback event | |
3531 | * for the zebra main pthread. | |
3532 | */ | |
3801e764 | 3533 | thread_add_event(zrouter.master, zebra_finalize, NULL, 0, NULL); |
4dfd7a02 MS |
3534 | } |
3535 | ||
3536 | return 0; | |
3537 | } | |
3538 | ||
18c37974 | 3539 | /* |
1d11b21f | 3540 | * Shutdown, de-init api. This runs pretty late during shutdown, |
4dfd7a02 MS |
3541 | * after zebra has tried to free/remove/uninstall all routes during shutdown. |
3542 | * At this point, dplane work may still remain to be done, so we can't just | |
3543 | * blindly terminate. If there's still work to do, we'll periodically check | |
3544 | * and when done, we'll enqueue a task to the zebra main thread for final | |
3545 | * termination processing. | |
3546 | * | |
1d11b21f | 3547 | * NB: This runs in the main zebra thread context. |
18c37974 | 3548 | */ |
1d11b21f | 3549 | void zebra_dplane_finish(void) |
18c37974 | 3550 | { |
4dfd7a02 MS |
3551 | if (IS_ZEBRA_DEBUG_DPLANE) |
3552 | zlog_debug("Zebra dataplane fini called"); | |
3553 | ||
25779064 | 3554 | thread_add_event(zdplane_info.dg_master, |
4dfd7a02 | 3555 | dplane_check_shutdown_status, NULL, 0, |
25779064 | 3556 | &zdplane_info.dg_t_shutdown_check); |
4dfd7a02 MS |
3557 | } |
3558 | ||
c831033f MS |
3559 | /* |
3560 | * Main dataplane pthread event loop. The thread takes new incoming work | |
3561 | * and offers it to the first provider. It then iterates through the | |
3562 | * providers, taking complete work from each one and offering it | |
3563 | * to the next in order. At each step, a limited number of updates are | |
3564 | * processed during a cycle in order to provide some fairness. | |
14b0bc8e MS |
3565 | * |
3566 | * This loop through the providers is only run once, so that the dataplane | |
3567 | * pthread can look for other pending work - such as i/o work on behalf of | |
3568 | * providers. | |
c831033f MS |
3569 | */ |
3570 | static int dplane_thread_loop(struct thread *event) | |
3571 | { | |
3572 | struct dplane_ctx_q work_list; | |
3573 | struct dplane_ctx_q error_list; | |
3574 | struct zebra_dplane_provider *prov; | |
3575 | struct zebra_dplane_ctx *ctx, *tctx; | |
3576 | int limit, counter, error_counter; | |
c9d17fe8 | 3577 | uint64_t curr, high; |
c831033f MS |
3578 | |
3579 | /* Capture work limit per cycle */ | |
3580 | limit = zdplane_info.dg_updates_per_cycle; | |
3581 | ||
14b0bc8e | 3582 | /* Init temporary lists used to move contexts among providers */ |
c831033f | 3583 | TAILQ_INIT(&work_list); |
14b0bc8e MS |
3584 | TAILQ_INIT(&error_list); |
3585 | error_counter = 0; | |
c831033f MS |
3586 | |
3587 | /* Check for zebra shutdown */ | |
3588 | if (!zdplane_info.dg_run) | |
3589 | goto done; | |
3590 | ||
3591 | /* Dequeue some incoming work from zebra (if any) onto the temporary | |
3592 | * working list. | |
3593 | */ | |
3594 | DPLANE_LOCK(); | |
3595 | ||
3596 | /* Locate initial registered provider */ | |
3597 | prov = TAILQ_FIRST(&zdplane_info.dg_providers_q); | |
3598 | ||
14b0bc8e | 3599 | /* Move new work from incoming list to temp list */ |
c831033f | 3600 | for (counter = 0; counter < limit; counter++) { |
3fe4ccc4 | 3601 | ctx = TAILQ_FIRST(&zdplane_info.dg_update_ctx_q); |
c831033f | 3602 | if (ctx) { |
3fe4ccc4 | 3603 | TAILQ_REMOVE(&zdplane_info.dg_update_ctx_q, ctx, |
c831033f MS |
3604 | zd_q_entries); |
3605 | ||
c831033f MS |
3606 | ctx->zd_provider = prov->dp_id; |
3607 | ||
3608 | TAILQ_INSERT_TAIL(&work_list, ctx, zd_q_entries); | |
3609 | } else { | |
3610 | break; | |
3611 | } | |
3612 | } | |
3613 | ||
3614 | DPLANE_UNLOCK(); | |
3615 | ||
14b0bc8e MS |
3616 | atomic_fetch_sub_explicit(&zdplane_info.dg_routes_queued, counter, |
3617 | memory_order_relaxed); | |
3618 | ||
c831033f MS |
3619 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) |
3620 | zlog_debug("dplane: incoming new work counter: %d", counter); | |
3621 | ||
3622 | /* Iterate through the registered providers, offering new incoming | |
3623 | * work. If the provider has outgoing work in its queue, take that | |
3624 | * work for the next provider | |
3625 | */ | |
3626 | while (prov) { | |
3627 | ||
14b0bc8e MS |
3628 | /* At each iteration, the temporary work list has 'counter' |
3629 | * items. | |
3630 | */ | |
c831033f MS |
3631 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) |
3632 | zlog_debug("dplane enqueues %d new work to provider '%s'", | |
3633 | counter, dplane_provider_get_name(prov)); | |
3634 | ||
3635 | /* Capture current provider id in each context; check for | |
3636 | * error status. | |
3637 | */ | |
3638 | TAILQ_FOREACH_SAFE(ctx, &work_list, zd_q_entries, tctx) { | |
3639 | if (dplane_ctx_get_status(ctx) == | |
3640 | ZEBRA_DPLANE_REQUEST_SUCCESS) { | |
3641 | ctx->zd_provider = prov->dp_id; | |
3642 | } else { | |
3643 | /* | |
3644 | * TODO -- improve error-handling: recirc | |
3645 | * errors backwards so that providers can | |
3646 | * 'undo' their work (if they want to) | |
3647 | */ | |
3648 | ||
3649 | /* Move to error list; will be returned | |
3650 | * zebra main. | |
3651 | */ | |
3652 | TAILQ_REMOVE(&work_list, ctx, zd_q_entries); | |
3653 | TAILQ_INSERT_TAIL(&error_list, | |
3654 | ctx, zd_q_entries); | |
3655 | error_counter++; | |
3656 | } | |
3657 | } | |
3658 | ||
3659 | /* Enqueue new work to the provider */ | |
ad6aad4d | 3660 | dplane_provider_lock(prov); |
c831033f MS |
3661 | |
3662 | if (TAILQ_FIRST(&work_list)) | |
3663 | TAILQ_CONCAT(&(prov->dp_ctx_in_q), &work_list, | |
3664 | zd_q_entries); | |
3665 | ||
c9d17fe8 MS |
3666 | atomic_fetch_add_explicit(&prov->dp_in_counter, counter, |
3667 | memory_order_relaxed); | |
3668 | atomic_fetch_add_explicit(&prov->dp_in_queued, counter, | |
3669 | memory_order_relaxed); | |
3670 | curr = atomic_load_explicit(&prov->dp_in_queued, | |
3671 | memory_order_relaxed); | |
3672 | high = atomic_load_explicit(&prov->dp_in_max, | |
3673 | memory_order_relaxed); | |
3674 | if (curr > high) | |
3675 | atomic_store_explicit(&prov->dp_in_max, curr, | |
c831033f MS |
3676 | memory_order_relaxed); |
3677 | ||
ad6aad4d | 3678 | dplane_provider_unlock(prov); |
c831033f | 3679 | |
14b0bc8e MS |
3680 | /* Reset the temp list (though the 'concat' may have done this |
3681 | * already), and the counter | |
3682 | */ | |
c831033f MS |
3683 | TAILQ_INIT(&work_list); |
3684 | counter = 0; | |
3685 | ||
14b0bc8e MS |
3686 | /* Call into the provider code. Note that this is |
3687 | * unconditional: we offer to do work even if we don't enqueue | |
3688 | * any _new_ work. | |
3689 | */ | |
c831033f MS |
3690 | (*prov->dp_fp)(prov); |
3691 | ||
3692 | /* Check for zebra shutdown */ | |
3693 | if (!zdplane_info.dg_run) | |
3694 | break; | |
3695 | ||
3696 | /* Dequeue completed work from the provider */ | |
ad6aad4d | 3697 | dplane_provider_lock(prov); |
c831033f MS |
3698 | |
3699 | while (counter < limit) { | |
3700 | ctx = TAILQ_FIRST(&(prov->dp_ctx_out_q)); | |
3701 | if (ctx) { | |
3702 | TAILQ_REMOVE(&(prov->dp_ctx_out_q), ctx, | |
3703 | zd_q_entries); | |
3704 | ||
3705 | TAILQ_INSERT_TAIL(&work_list, | |
3706 | ctx, zd_q_entries); | |
3707 | counter++; | |
3708 | } else | |
3709 | break; | |
3710 | } | |
3711 | ||
ad6aad4d | 3712 | dplane_provider_unlock(prov); |
c831033f MS |
3713 | |
3714 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) | |
3715 | zlog_debug("dplane dequeues %d completed work from provider %s", | |
3716 | counter, dplane_provider_get_name(prov)); | |
3717 | ||
3718 | /* Locate next provider */ | |
3719 | DPLANE_LOCK(); | |
3720 | prov = TAILQ_NEXT(prov, dp_prov_link); | |
3721 | DPLANE_UNLOCK(); | |
c831033f MS |
3722 | } |
3723 | ||
3724 | /* After all providers have been serviced, enqueue any completed | |
14b0bc8e | 3725 | * work and any errors back to zebra so it can process the results. |
c831033f | 3726 | */ |
c831033f | 3727 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) |
14b0bc8e MS |
3728 | zlog_debug("dplane has %d completed, %d errors, for zebra main", |
3729 | counter, error_counter); | |
c831033f MS |
3730 | |
3731 | /* | |
4c206c8f | 3732 | * Hand lists through the api to zebra main, |
c831033f MS |
3733 | * to reduce the number of lock/unlock cycles |
3734 | */ | |
14b0bc8e | 3735 | |
4c206c8f MS |
3736 | /* Call through to zebra main */ |
3737 | (zdplane_info.dg_results_cb)(&error_list); | |
14b0bc8e | 3738 | |
4c206c8f | 3739 | TAILQ_INIT(&error_list); |
14b0bc8e | 3740 | |
4c206c8f MS |
3741 | /* Call through to zebra main */ |
3742 | (zdplane_info.dg_results_cb)(&work_list); | |
c831033f | 3743 | |
4c206c8f | 3744 | TAILQ_INIT(&work_list); |
c831033f MS |
3745 | |
3746 | done: | |
3747 | return 0; | |
3748 | } | |
3749 | ||
4dfd7a02 MS |
3750 | /* |
3751 | * Final phase of shutdown, after all work enqueued to dplane has been | |
3752 | * processed. This is called from the zebra main pthread context. | |
3753 | */ | |
3754 | void zebra_dplane_shutdown(void) | |
3755 | { | |
3756 | if (IS_ZEBRA_DEBUG_DPLANE) | |
3757 | zlog_debug("Zebra dataplane shutdown called"); | |
1d11b21f MS |
3758 | |
3759 | /* Stop dplane thread, if it's running */ | |
3760 | ||
25779064 | 3761 | zdplane_info.dg_run = false; |
1d11b21f | 3762 | |
9344d3fc SW |
3763 | if (zdplane_info.dg_t_update) |
3764 | thread_cancel_async(zdplane_info.dg_t_update->master, | |
3765 | &zdplane_info.dg_t_update, NULL); | |
1d11b21f | 3766 | |
d8c16a95 MS |
3767 | frr_pthread_stop(zdplane_info.dg_pthread, NULL); |
3768 | ||
3769 | /* Destroy pthread */ | |
3770 | frr_pthread_destroy(zdplane_info.dg_pthread); | |
3771 | zdplane_info.dg_pthread = NULL; | |
3772 | zdplane_info.dg_master = NULL; | |
4dfd7a02 | 3773 | |
c831033f MS |
3774 | /* TODO -- Notify provider(s) of final shutdown */ |
3775 | ||
3776 | /* TODO -- Clean-up provider objects */ | |
3777 | ||
3778 | /* TODO -- Clean queue(s), free memory */ | |
3779 | } | |
3780 | ||
3781 | /* | |
3782 | * Initialize the dataplane module during startup, internal/private version | |
3783 | */ | |
2561d12e | 3784 | static void zebra_dplane_init_internal(void) |
c831033f MS |
3785 | { |
3786 | memset(&zdplane_info, 0, sizeof(zdplane_info)); | |
3787 | ||
3788 | pthread_mutex_init(&zdplane_info.dg_mutex, NULL); | |
1d11b21f | 3789 | |
3fe4ccc4 | 3790 | TAILQ_INIT(&zdplane_info.dg_update_ctx_q); |
c831033f | 3791 | TAILQ_INIT(&zdplane_info.dg_providers_q); |
1d11b21f | 3792 | |
c831033f MS |
3793 | zdplane_info.dg_updates_per_cycle = DPLANE_DEFAULT_NEW_WORK; |
3794 | ||
3795 | zdplane_info.dg_max_queued_updates = DPLANE_DEFAULT_MAX_QUEUED; | |
3796 | ||
3797 | /* Register default kernel 'provider' during init */ | |
3798 | dplane_provider_init(); | |
e5a60d82 | 3799 | } |
c831033f | 3800 | |
e5a60d82 MS |
3801 | /* |
3802 | * Start the dataplane pthread. This step needs to be run later than the | |
3803 | * 'init' step, in case zebra has fork-ed. | |
3804 | */ | |
3805 | void zebra_dplane_start(void) | |
3806 | { | |
1dd4ea8a | 3807 | struct zebra_dplane_provider *prov; |
c831033f MS |
3808 | struct frr_pthread_attr pattr = { |
3809 | .start = frr_pthread_attr_default.start, | |
3810 | .stop = frr_pthread_attr_default.stop | |
3811 | }; | |
3812 | ||
1dd4ea8a MS |
3813 | /* Start dataplane pthread */ |
3814 | ||
c831033f | 3815 | zdplane_info.dg_pthread = frr_pthread_new(&pattr, "Zebra dplane thread", |
0eca319c | 3816 | "zebra_dplane"); |
c831033f MS |
3817 | |
3818 | zdplane_info.dg_master = zdplane_info.dg_pthread->master; | |
3819 | ||
e5a60d82 MS |
3820 | zdplane_info.dg_run = true; |
3821 | ||
c831033f MS |
3822 | /* Enqueue an initial event for the dataplane pthread */ |
3823 | thread_add_event(zdplane_info.dg_master, dplane_thread_loop, NULL, 0, | |
3824 | &zdplane_info.dg_t_update); | |
3825 | ||
1dd4ea8a MS |
3826 | /* Call start callbacks for registered providers */ |
3827 | ||
3828 | DPLANE_LOCK(); | |
3829 | prov = TAILQ_FIRST(&zdplane_info.dg_providers_q); | |
3830 | DPLANE_UNLOCK(); | |
3831 | ||
3832 | while (prov) { | |
3833 | ||
3834 | if (prov->dp_start) | |
3835 | (prov->dp_start)(prov); | |
3836 | ||
3837 | /* Locate next provider */ | |
3838 | DPLANE_LOCK(); | |
3839 | prov = TAILQ_NEXT(prov, dp_prov_link); | |
3840 | DPLANE_UNLOCK(); | |
3841 | } | |
3842 | ||
c831033f | 3843 | frr_pthread_run(zdplane_info.dg_pthread, NULL); |
18c37974 MS |
3844 | } |
3845 | ||
7cdb1a84 | 3846 | /* |
b8e0423d | 3847 | * Initialize the dataplane module at startup; called by zebra rib_init() |
7cdb1a84 | 3848 | */ |
4c206c8f | 3849 | void zebra_dplane_init(int (*results_fp)(struct dplane_ctx_q *)) |
7cdb1a84 | 3850 | { |
2561d12e | 3851 | zebra_dplane_init_internal(); |
4c206c8f | 3852 | zdplane_info.dg_results_cb = results_fp; |
7cdb1a84 | 3853 | } |