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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); | |
552 | *pctx = NULL; | |
7cdb1a84 MS |
553 | } |
554 | ||
555 | /* | |
556 | * Return a context block to the dplane module after processing | |
557 | */ | |
25779064 | 558 | void dplane_ctx_fini(struct zebra_dplane_ctx **pctx) |
7cdb1a84 | 559 | { |
14b0bc8e | 560 | /* TODO -- maintain pool; for now, just free */ |
7cdb1a84 MS |
561 | dplane_ctx_free(pctx); |
562 | } | |
563 | ||
564 | /* Enqueue a context block */ | |
25779064 MS |
565 | void dplane_ctx_enqueue_tail(struct dplane_ctx_q *q, |
566 | const struct zebra_dplane_ctx *ctx) | |
7cdb1a84 | 567 | { |
25779064 | 568 | TAILQ_INSERT_TAIL(q, (struct zebra_dplane_ctx *)ctx, zd_q_entries); |
7cdb1a84 MS |
569 | } |
570 | ||
14b0bc8e MS |
571 | /* Append a list of context blocks to another list */ |
572 | void dplane_ctx_list_append(struct dplane_ctx_q *to_list, | |
573 | struct dplane_ctx_q *from_list) | |
574 | { | |
575 | if (TAILQ_FIRST(from_list)) { | |
576 | TAILQ_CONCAT(to_list, from_list, zd_q_entries); | |
577 | ||
578 | /* And clear 'from' list */ | |
579 | TAILQ_INIT(from_list); | |
580 | } | |
581 | } | |
582 | ||
7cdb1a84 | 583 | /* Dequeue a context block from the head of a list */ |
68b375e0 | 584 | struct zebra_dplane_ctx *dplane_ctx_dequeue(struct dplane_ctx_q *q) |
7cdb1a84 | 585 | { |
25779064 | 586 | struct zebra_dplane_ctx *ctx = TAILQ_FIRST(q); |
5709131c MS |
587 | |
588 | if (ctx) | |
7cdb1a84 | 589 | TAILQ_REMOVE(q, ctx, zd_q_entries); |
7cdb1a84 | 590 | |
68b375e0 | 591 | return ctx; |
7cdb1a84 MS |
592 | } |
593 | ||
594 | /* | |
595 | * Accessors for information from the context object | |
596 | */ | |
25779064 MS |
597 | enum zebra_dplane_result dplane_ctx_get_status( |
598 | const struct zebra_dplane_ctx *ctx) | |
7cdb1a84 MS |
599 | { |
600 | DPLANE_CTX_VALID(ctx); | |
601 | ||
5709131c | 602 | return ctx->zd_status; |
7cdb1a84 MS |
603 | } |
604 | ||
c831033f MS |
605 | void dplane_ctx_set_status(struct zebra_dplane_ctx *ctx, |
606 | enum zebra_dplane_result status) | |
607 | { | |
608 | DPLANE_CTX_VALID(ctx); | |
609 | ||
610 | ctx->zd_status = status; | |
611 | } | |
612 | ||
613 | /* Retrieve last/current provider id */ | |
614 | uint32_t dplane_ctx_get_provider(const struct zebra_dplane_ctx *ctx) | |
615 | { | |
616 | DPLANE_CTX_VALID(ctx); | |
617 | return ctx->zd_provider; | |
618 | } | |
619 | ||
620 | /* Providers run before the kernel can control whether a kernel | |
621 | * update should be done. | |
622 | */ | |
623 | void dplane_ctx_set_skip_kernel(struct zebra_dplane_ctx *ctx) | |
624 | { | |
625 | DPLANE_CTX_VALID(ctx); | |
626 | ||
627 | SET_FLAG(ctx->zd_flags, DPLANE_CTX_FLAG_NO_KERNEL); | |
628 | } | |
629 | ||
630 | bool dplane_ctx_is_skip_kernel(const struct zebra_dplane_ctx *ctx) | |
631 | { | |
632 | DPLANE_CTX_VALID(ctx); | |
633 | ||
634 | return CHECK_FLAG(ctx->zd_flags, DPLANE_CTX_FLAG_NO_KERNEL); | |
635 | } | |
636 | ||
593e4eb1 MS |
637 | void dplane_ctx_set_op(struct zebra_dplane_ctx *ctx, enum dplane_op_e op) |
638 | { | |
639 | DPLANE_CTX_VALID(ctx); | |
640 | ctx->zd_op = op; | |
641 | } | |
642 | ||
25779064 | 643 | enum dplane_op_e dplane_ctx_get_op(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
644 | { |
645 | DPLANE_CTX_VALID(ctx); | |
646 | ||
5709131c | 647 | return ctx->zd_op; |
7cdb1a84 MS |
648 | } |
649 | ||
5709131c | 650 | const char *dplane_op2str(enum dplane_op_e op) |
7cdb1a84 MS |
651 | { |
652 | const char *ret = "UNKNOWN"; | |
653 | ||
5709131c | 654 | switch (op) { |
7cdb1a84 MS |
655 | case DPLANE_OP_NONE: |
656 | ret = "NONE"; | |
657 | break; | |
658 | ||
659 | /* Route update */ | |
660 | case DPLANE_OP_ROUTE_INSTALL: | |
661 | ret = "ROUTE_INSTALL"; | |
662 | break; | |
663 | case DPLANE_OP_ROUTE_UPDATE: | |
664 | ret = "ROUTE_UPDATE"; | |
665 | break; | |
666 | case DPLANE_OP_ROUTE_DELETE: | |
667 | ret = "ROUTE_DELETE"; | |
668 | break; | |
54818e3b MS |
669 | case DPLANE_OP_ROUTE_NOTIFY: |
670 | ret = "ROUTE_NOTIFY"; | |
671 | break; | |
7cdb1a84 | 672 | |
f820d025 SW |
673 | /* Nexthop update */ |
674 | case DPLANE_OP_NH_INSTALL: | |
675 | ret = "NH_INSTALL"; | |
676 | break; | |
677 | case DPLANE_OP_NH_UPDATE: | |
678 | ret = "NH_UPDATE"; | |
679 | break; | |
680 | case DPLANE_OP_NH_DELETE: | |
681 | ret = "NH_DELETE"; | |
682 | break; | |
683 | ||
16c628de MS |
684 | case DPLANE_OP_LSP_INSTALL: |
685 | ret = "LSP_INSTALL"; | |
686 | break; | |
687 | case DPLANE_OP_LSP_UPDATE: | |
688 | ret = "LSP_UPDATE"; | |
689 | break; | |
690 | case DPLANE_OP_LSP_DELETE: | |
691 | ret = "LSP_DELETE"; | |
692 | break; | |
104e3ad9 MS |
693 | case DPLANE_OP_LSP_NOTIFY: |
694 | ret = "LSP_NOTIFY"; | |
695 | break; | |
16c628de | 696 | |
97d8d05a MS |
697 | case DPLANE_OP_PW_INSTALL: |
698 | ret = "PW_INSTALL"; | |
699 | break; | |
700 | case DPLANE_OP_PW_UNINSTALL: | |
701 | ret = "PW_UNINSTALL"; | |
702 | break; | |
703 | ||
cf363e1b MS |
704 | case DPLANE_OP_SYS_ROUTE_ADD: |
705 | ret = "SYS_ROUTE_ADD"; | |
706 | break; | |
707 | case DPLANE_OP_SYS_ROUTE_DELETE: | |
708 | ret = "SYS_ROUTE_DEL"; | |
709 | break; | |
a4a4802a MS |
710 | |
711 | case DPLANE_OP_ADDR_INSTALL: | |
712 | ret = "ADDR_INSTALL"; | |
713 | break; | |
714 | case DPLANE_OP_ADDR_UNINSTALL: | |
715 | ret = "ADDR_UNINSTALL"; | |
716 | break; | |
717 | ||
7597ac7b MS |
718 | case DPLANE_OP_MAC_INSTALL: |
719 | ret = "MAC_INSTALL"; | |
720 | break; | |
721 | case DPLANE_OP_MAC_DELETE: | |
722 | ret = "MAC_DELETE"; | |
723 | break; | |
f2412b2d MS |
724 | |
725 | case DPLANE_OP_NEIGH_INSTALL: | |
726 | ret = "NEIGH_INSTALL"; | |
727 | break; | |
931fa60c MS |
728 | case DPLANE_OP_NEIGH_UPDATE: |
729 | ret = "NEIGH_UPDATE"; | |
730 | break; | |
f2412b2d MS |
731 | case DPLANE_OP_NEIGH_DELETE: |
732 | ret = "NEIGH_DELETE"; | |
733 | break; | |
0bbd4ff4 MS |
734 | case DPLANE_OP_VTEP_ADD: |
735 | ret = "VTEP_ADD"; | |
736 | break; | |
737 | case DPLANE_OP_VTEP_DELETE: | |
738 | ret = "VTEP_DELETE"; | |
739 | break; | |
5b94ec50 | 740 | } |
7cdb1a84 | 741 | |
5709131c | 742 | return ret; |
7cdb1a84 MS |
743 | } |
744 | ||
f183e380 MS |
745 | const char *dplane_res2str(enum zebra_dplane_result res) |
746 | { | |
747 | const char *ret = "<Unknown>"; | |
748 | ||
749 | switch (res) { | |
750 | case ZEBRA_DPLANE_REQUEST_FAILURE: | |
751 | ret = "FAILURE"; | |
752 | break; | |
753 | case ZEBRA_DPLANE_REQUEST_QUEUED: | |
754 | ret = "QUEUED"; | |
755 | break; | |
756 | case ZEBRA_DPLANE_REQUEST_SUCCESS: | |
757 | ret = "SUCCESS"; | |
758 | break; | |
5b94ec50 | 759 | } |
f183e380 MS |
760 | |
761 | return ret; | |
762 | } | |
763 | ||
593e4eb1 MS |
764 | void dplane_ctx_set_dest(struct zebra_dplane_ctx *ctx, |
765 | const struct prefix *dest) | |
766 | { | |
767 | DPLANE_CTX_VALID(ctx); | |
768 | ||
769 | prefix_copy(&(ctx->u.rinfo.zd_dest), dest); | |
770 | } | |
771 | ||
25779064 | 772 | const struct prefix *dplane_ctx_get_dest(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
773 | { |
774 | DPLANE_CTX_VALID(ctx); | |
775 | ||
0f461727 | 776 | return &(ctx->u.rinfo.zd_dest); |
7cdb1a84 MS |
777 | } |
778 | ||
593e4eb1 MS |
779 | void dplane_ctx_set_src(struct zebra_dplane_ctx *ctx, const struct prefix *src) |
780 | { | |
781 | DPLANE_CTX_VALID(ctx); | |
782 | ||
783 | if (src) | |
784 | prefix_copy(&(ctx->u.rinfo.zd_src), src); | |
785 | else | |
786 | memset(&(ctx->u.rinfo.zd_src), 0, sizeof(struct prefix)); | |
787 | } | |
788 | ||
5709131c | 789 | /* Source prefix is a little special - return NULL for "no src prefix" */ |
25779064 | 790 | const struct prefix *dplane_ctx_get_src(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
791 | { |
792 | DPLANE_CTX_VALID(ctx); | |
793 | ||
0f461727 MS |
794 | if (ctx->u.rinfo.zd_src.prefixlen == 0 && |
795 | IN6_IS_ADDR_UNSPECIFIED(&(ctx->u.rinfo.zd_src.u.prefix6))) { | |
5709131c | 796 | return NULL; |
7cdb1a84 | 797 | } else { |
0f461727 | 798 | return &(ctx->u.rinfo.zd_src); |
7cdb1a84 MS |
799 | } |
800 | } | |
801 | ||
25779064 | 802 | bool dplane_ctx_is_update(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
803 | { |
804 | DPLANE_CTX_VALID(ctx); | |
805 | ||
5709131c | 806 | return ctx->zd_is_update; |
7cdb1a84 MS |
807 | } |
808 | ||
25779064 | 809 | uint32_t dplane_ctx_get_seq(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
810 | { |
811 | DPLANE_CTX_VALID(ctx); | |
812 | ||
5709131c | 813 | return ctx->zd_seq; |
7cdb1a84 MS |
814 | } |
815 | ||
25779064 | 816 | uint32_t dplane_ctx_get_old_seq(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
817 | { |
818 | DPLANE_CTX_VALID(ctx); | |
819 | ||
5709131c | 820 | return ctx->zd_old_seq; |
7cdb1a84 MS |
821 | } |
822 | ||
593e4eb1 MS |
823 | void dplane_ctx_set_vrf(struct zebra_dplane_ctx *ctx, vrf_id_t vrf) |
824 | { | |
825 | DPLANE_CTX_VALID(ctx); | |
826 | ||
827 | ctx->zd_vrf_id = vrf; | |
828 | } | |
829 | ||
25779064 | 830 | vrf_id_t dplane_ctx_get_vrf(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
831 | { |
832 | DPLANE_CTX_VALID(ctx); | |
833 | ||
5709131c | 834 | return ctx->zd_vrf_id; |
7cdb1a84 MS |
835 | } |
836 | ||
0024a559 MS |
837 | bool dplane_ctx_is_from_notif(const struct zebra_dplane_ctx *ctx) |
838 | { | |
839 | DPLANE_CTX_VALID(ctx); | |
840 | ||
841 | return (ctx->zd_notif_provider != 0); | |
842 | } | |
843 | ||
844 | uint32_t dplane_ctx_get_notif_provider(const struct zebra_dplane_ctx *ctx) | |
845 | { | |
846 | DPLANE_CTX_VALID(ctx); | |
847 | ||
848 | return ctx->zd_notif_provider; | |
849 | } | |
850 | ||
9651af61 MS |
851 | void dplane_ctx_set_notif_provider(struct zebra_dplane_ctx *ctx, |
852 | uint32_t id) | |
853 | { | |
854 | DPLANE_CTX_VALID(ctx); | |
855 | ||
856 | ctx->zd_notif_provider = id; | |
857 | } | |
7c7ef4a8 MS |
858 | const char *dplane_ctx_get_ifname(const struct zebra_dplane_ctx *ctx) |
859 | { | |
860 | DPLANE_CTX_VALID(ctx); | |
861 | ||
862 | return ctx->zd_ifname; | |
863 | } | |
864 | ||
865 | ifindex_t dplane_ctx_get_ifindex(const struct zebra_dplane_ctx *ctx) | |
866 | { | |
867 | DPLANE_CTX_VALID(ctx); | |
868 | ||
869 | return ctx->zd_ifindex; | |
870 | } | |
9651af61 | 871 | |
593e4eb1 MS |
872 | void dplane_ctx_set_type(struct zebra_dplane_ctx *ctx, int type) |
873 | { | |
874 | DPLANE_CTX_VALID(ctx); | |
875 | ||
876 | ctx->u.rinfo.zd_type = type; | |
877 | } | |
878 | ||
25779064 | 879 | int dplane_ctx_get_type(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
880 | { |
881 | DPLANE_CTX_VALID(ctx); | |
882 | ||
0f461727 | 883 | return ctx->u.rinfo.zd_type; |
7cdb1a84 MS |
884 | } |
885 | ||
25779064 | 886 | int dplane_ctx_get_old_type(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
887 | { |
888 | DPLANE_CTX_VALID(ctx); | |
889 | ||
0f461727 | 890 | return ctx->u.rinfo.zd_old_type; |
7cdb1a84 MS |
891 | } |
892 | ||
593e4eb1 MS |
893 | void dplane_ctx_set_afi(struct zebra_dplane_ctx *ctx, afi_t afi) |
894 | { | |
895 | DPLANE_CTX_VALID(ctx); | |
896 | ||
897 | ctx->u.rinfo.zd_afi = afi; | |
898 | } | |
899 | ||
25779064 | 900 | afi_t dplane_ctx_get_afi(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
901 | { |
902 | DPLANE_CTX_VALID(ctx); | |
903 | ||
0f461727 | 904 | return ctx->u.rinfo.zd_afi; |
7cdb1a84 MS |
905 | } |
906 | ||
593e4eb1 MS |
907 | void dplane_ctx_set_safi(struct zebra_dplane_ctx *ctx, safi_t safi) |
908 | { | |
909 | DPLANE_CTX_VALID(ctx); | |
910 | ||
911 | ctx->u.rinfo.zd_safi = safi; | |
912 | } | |
913 | ||
25779064 | 914 | safi_t dplane_ctx_get_safi(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
915 | { |
916 | DPLANE_CTX_VALID(ctx); | |
917 | ||
0f461727 | 918 | return ctx->u.rinfo.zd_safi; |
7cdb1a84 MS |
919 | } |
920 | ||
593e4eb1 MS |
921 | void dplane_ctx_set_table(struct zebra_dplane_ctx *ctx, uint32_t table) |
922 | { | |
923 | DPLANE_CTX_VALID(ctx); | |
924 | ||
925 | ctx->zd_table_id = table; | |
926 | } | |
927 | ||
25779064 | 928 | uint32_t dplane_ctx_get_table(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
929 | { |
930 | DPLANE_CTX_VALID(ctx); | |
931 | ||
5709131c | 932 | return ctx->zd_table_id; |
7cdb1a84 MS |
933 | } |
934 | ||
25779064 | 935 | route_tag_t dplane_ctx_get_tag(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
936 | { |
937 | DPLANE_CTX_VALID(ctx); | |
938 | ||
0f461727 | 939 | return ctx->u.rinfo.zd_tag; |
7cdb1a84 MS |
940 | } |
941 | ||
6a91ae98 MS |
942 | void dplane_ctx_set_tag(struct zebra_dplane_ctx *ctx, route_tag_t tag) |
943 | { | |
944 | DPLANE_CTX_VALID(ctx); | |
945 | ||
946 | ctx->u.rinfo.zd_tag = tag; | |
947 | } | |
948 | ||
25779064 | 949 | route_tag_t dplane_ctx_get_old_tag(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
950 | { |
951 | DPLANE_CTX_VALID(ctx); | |
952 | ||
0f461727 | 953 | return ctx->u.rinfo.zd_old_tag; |
7cdb1a84 MS |
954 | } |
955 | ||
25779064 | 956 | uint16_t dplane_ctx_get_instance(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
957 | { |
958 | DPLANE_CTX_VALID(ctx); | |
959 | ||
0f461727 | 960 | return ctx->u.rinfo.zd_instance; |
7cdb1a84 MS |
961 | } |
962 | ||
6a91ae98 MS |
963 | void dplane_ctx_set_instance(struct zebra_dplane_ctx *ctx, uint16_t instance) |
964 | { | |
965 | DPLANE_CTX_VALID(ctx); | |
966 | ||
967 | ctx->u.rinfo.zd_instance = instance; | |
968 | } | |
969 | ||
25779064 | 970 | uint16_t dplane_ctx_get_old_instance(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
971 | { |
972 | DPLANE_CTX_VALID(ctx); | |
973 | ||
0f461727 | 974 | return ctx->u.rinfo.zd_old_instance; |
7cdb1a84 MS |
975 | } |
976 | ||
25779064 | 977 | uint32_t dplane_ctx_get_metric(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
978 | { |
979 | DPLANE_CTX_VALID(ctx); | |
980 | ||
0f461727 | 981 | return ctx->u.rinfo.zd_metric; |
7cdb1a84 MS |
982 | } |
983 | ||
25779064 | 984 | uint32_t dplane_ctx_get_old_metric(const struct zebra_dplane_ctx *ctx) |
01ce7cba MS |
985 | { |
986 | DPLANE_CTX_VALID(ctx); | |
987 | ||
0f461727 | 988 | return ctx->u.rinfo.zd_old_metric; |
01ce7cba MS |
989 | } |
990 | ||
25779064 | 991 | uint32_t dplane_ctx_get_mtu(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
992 | { |
993 | DPLANE_CTX_VALID(ctx); | |
994 | ||
0f461727 | 995 | return ctx->u.rinfo.zd_mtu; |
7cdb1a84 MS |
996 | } |
997 | ||
25779064 | 998 | uint32_t dplane_ctx_get_nh_mtu(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
999 | { |
1000 | DPLANE_CTX_VALID(ctx); | |
1001 | ||
0f461727 | 1002 | return ctx->u.rinfo.zd_nexthop_mtu; |
7cdb1a84 MS |
1003 | } |
1004 | ||
25779064 | 1005 | uint8_t dplane_ctx_get_distance(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
1006 | { |
1007 | DPLANE_CTX_VALID(ctx); | |
1008 | ||
0f461727 | 1009 | return ctx->u.rinfo.zd_distance; |
7cdb1a84 MS |
1010 | } |
1011 | ||
6a91ae98 MS |
1012 | void dplane_ctx_set_distance(struct zebra_dplane_ctx *ctx, uint8_t distance) |
1013 | { | |
1014 | DPLANE_CTX_VALID(ctx); | |
1015 | ||
1016 | ctx->u.rinfo.zd_distance = distance; | |
1017 | } | |
1018 | ||
25779064 | 1019 | uint8_t dplane_ctx_get_old_distance(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
1020 | { |
1021 | DPLANE_CTX_VALID(ctx); | |
1022 | ||
0f461727 | 1023 | return ctx->u.rinfo.zd_old_distance; |
7cdb1a84 MS |
1024 | } |
1025 | ||
e1f3a8eb MS |
1026 | /* |
1027 | * Set the nexthops associated with a context: note that processing code | |
1028 | * may well expect that nexthops are in canonical (sorted) order, so we | |
1029 | * will enforce that here. | |
1030 | */ | |
593e4eb1 MS |
1031 | void dplane_ctx_set_nexthops(struct zebra_dplane_ctx *ctx, struct nexthop *nh) |
1032 | { | |
1033 | DPLANE_CTX_VALID(ctx); | |
1034 | ||
1035 | if (ctx->u.rinfo.zd_ng.nexthop) { | |
1036 | nexthops_free(ctx->u.rinfo.zd_ng.nexthop); | |
1037 | ctx->u.rinfo.zd_ng.nexthop = NULL; | |
1038 | } | |
e1f3a8eb | 1039 | nexthop_group_copy_nh_sorted(&(ctx->u.rinfo.zd_ng), nh); |
593e4eb1 MS |
1040 | } |
1041 | ||
25779064 MS |
1042 | const struct nexthop_group *dplane_ctx_get_ng( |
1043 | const struct zebra_dplane_ctx *ctx) | |
7cdb1a84 MS |
1044 | { |
1045 | DPLANE_CTX_VALID(ctx); | |
1046 | ||
0f461727 | 1047 | return &(ctx->u.rinfo.zd_ng); |
7cdb1a84 MS |
1048 | } |
1049 | ||
25779064 MS |
1050 | const struct nexthop_group *dplane_ctx_get_old_ng( |
1051 | const struct zebra_dplane_ctx *ctx) | |
01ce7cba MS |
1052 | { |
1053 | DPLANE_CTX_VALID(ctx); | |
1054 | ||
0f461727 | 1055 | return &(ctx->u.rinfo.zd_old_ng); |
01ce7cba MS |
1056 | } |
1057 | ||
25779064 MS |
1058 | const struct zebra_dplane_info *dplane_ctx_get_ns( |
1059 | const struct zebra_dplane_ctx *ctx) | |
7cdb1a84 MS |
1060 | { |
1061 | DPLANE_CTX_VALID(ctx); | |
1062 | ||
5709131c | 1063 | return &(ctx->zd_ns_info); |
7cdb1a84 MS |
1064 | } |
1065 | ||
f820d025 | 1066 | /* Accessors for nexthop information */ |
0c8215cb SW |
1067 | uint32_t dplane_ctx_get_nhe_id(const struct zebra_dplane_ctx *ctx) |
1068 | { | |
1069 | DPLANE_CTX_VALID(ctx); | |
1070 | return ctx->u.rinfo.nhe.id; | |
1071 | } | |
1072 | ||
1073 | afi_t dplane_ctx_get_nhe_afi(const struct zebra_dplane_ctx *ctx) | |
1074 | { | |
1075 | DPLANE_CTX_VALID(ctx); | |
1076 | return ctx->u.rinfo.nhe.afi; | |
1077 | } | |
1078 | ||
1079 | vrf_id_t dplane_ctx_get_nhe_vrf_id(const struct zebra_dplane_ctx *ctx) | |
f820d025 SW |
1080 | { |
1081 | DPLANE_CTX_VALID(ctx); | |
0c8215cb SW |
1082 | return ctx->u.rinfo.nhe.vrf_id; |
1083 | } | |
1084 | ||
38e40db1 | 1085 | int dplane_ctx_get_nhe_type(const struct zebra_dplane_ctx *ctx) |
0c8215cb SW |
1086 | { |
1087 | DPLANE_CTX_VALID(ctx); | |
38e40db1 | 1088 | return ctx->u.rinfo.nhe.type; |
0c8215cb SW |
1089 | } |
1090 | ||
1091 | const struct nexthop_group * | |
1092 | dplane_ctx_get_nhe_ng(const struct zebra_dplane_ctx *ctx) | |
1093 | { | |
1094 | DPLANE_CTX_VALID(ctx); | |
1095 | return &(ctx->u.rinfo.nhe.ng); | |
1096 | } | |
1097 | ||
e22e8001 SW |
1098 | const struct nh_grp * |
1099 | dplane_ctx_get_nhe_nh_grp(const struct zebra_dplane_ctx *ctx) | |
0c8215cb SW |
1100 | { |
1101 | DPLANE_CTX_VALID(ctx); | |
e22e8001 | 1102 | return ctx->u.rinfo.nhe.nh_grp; |
0c8215cb SW |
1103 | } |
1104 | ||
e22e8001 | 1105 | uint8_t dplane_ctx_get_nhe_nh_grp_count(const struct zebra_dplane_ctx *ctx) |
0c8215cb SW |
1106 | { |
1107 | DPLANE_CTX_VALID(ctx); | |
e22e8001 | 1108 | return ctx->u.rinfo.nhe.nh_grp_count; |
f820d025 SW |
1109 | } |
1110 | ||
0f461727 MS |
1111 | /* Accessors for LSP information */ |
1112 | ||
1113 | mpls_label_t dplane_ctx_get_in_label(const struct zebra_dplane_ctx *ctx) | |
1114 | { | |
1115 | DPLANE_CTX_VALID(ctx); | |
1116 | ||
1117 | return ctx->u.lsp.ile.in_label; | |
1118 | } | |
1119 | ||
3ab54059 MS |
1120 | void dplane_ctx_set_in_label(struct zebra_dplane_ctx *ctx, mpls_label_t label) |
1121 | { | |
1122 | DPLANE_CTX_VALID(ctx); | |
1123 | ||
1124 | ctx->u.lsp.ile.in_label = label; | |
1125 | } | |
1126 | ||
0f461727 MS |
1127 | uint8_t dplane_ctx_get_addr_family(const struct zebra_dplane_ctx *ctx) |
1128 | { | |
1129 | DPLANE_CTX_VALID(ctx); | |
1130 | ||
1131 | return ctx->u.lsp.addr_family; | |
1132 | } | |
1133 | ||
3ab54059 MS |
1134 | void dplane_ctx_set_addr_family(struct zebra_dplane_ctx *ctx, |
1135 | uint8_t family) | |
1136 | { | |
1137 | DPLANE_CTX_VALID(ctx); | |
1138 | ||
1139 | ctx->u.lsp.addr_family = family; | |
1140 | } | |
1141 | ||
0f461727 MS |
1142 | uint32_t dplane_ctx_get_lsp_flags(const struct zebra_dplane_ctx *ctx) |
1143 | { | |
1144 | DPLANE_CTX_VALID(ctx); | |
1145 | ||
1146 | return ctx->u.lsp.flags; | |
1147 | } | |
1148 | ||
3ab54059 MS |
1149 | void dplane_ctx_set_lsp_flags(struct zebra_dplane_ctx *ctx, |
1150 | uint32_t flags) | |
1151 | { | |
1152 | DPLANE_CTX_VALID(ctx); | |
1153 | ||
1154 | ctx->u.lsp.flags = flags; | |
1155 | } | |
1156 | ||
81793ac1 | 1157 | const zebra_nhlfe_t *dplane_ctx_get_nhlfe(const struct zebra_dplane_ctx *ctx) |
0f461727 MS |
1158 | { |
1159 | DPLANE_CTX_VALID(ctx); | |
1160 | ||
1161 | return ctx->u.lsp.nhlfe_list; | |
1162 | } | |
1163 | ||
3ab54059 MS |
1164 | zebra_nhlfe_t *dplane_ctx_add_nhlfe(struct zebra_dplane_ctx *ctx, |
1165 | enum lsp_types_t lsp_type, | |
1166 | enum nexthop_types_t nh_type, | |
1167 | union g_addr *gate, | |
1168 | ifindex_t ifindex, | |
5065db0a RW |
1169 | uint8_t num_labels, |
1170 | mpls_label_t out_labels[]) | |
3ab54059 MS |
1171 | { |
1172 | zebra_nhlfe_t *nhlfe; | |
1173 | ||
1174 | DPLANE_CTX_VALID(ctx); | |
1175 | ||
1176 | nhlfe = zebra_mpls_lsp_add_nhlfe(&(ctx->u.lsp), | |
1177 | lsp_type, nh_type, gate, | |
5065db0a | 1178 | ifindex, num_labels, out_labels); |
3ab54059 MS |
1179 | |
1180 | return nhlfe; | |
1181 | } | |
1182 | ||
81793ac1 MS |
1183 | const zebra_nhlfe_t * |
1184 | dplane_ctx_get_best_nhlfe(const struct zebra_dplane_ctx *ctx) | |
0f461727 MS |
1185 | { |
1186 | DPLANE_CTX_VALID(ctx); | |
1187 | ||
1188 | return ctx->u.lsp.best_nhlfe; | |
1189 | } | |
1190 | ||
3ab54059 MS |
1191 | const zebra_nhlfe_t * |
1192 | dplane_ctx_set_best_nhlfe(struct zebra_dplane_ctx *ctx, | |
1193 | zebra_nhlfe_t *nhlfe) | |
1194 | { | |
1195 | DPLANE_CTX_VALID(ctx); | |
1196 | ||
1197 | ctx->u.lsp.best_nhlfe = nhlfe; | |
1198 | return ctx->u.lsp.best_nhlfe; | |
1199 | } | |
1200 | ||
0f461727 MS |
1201 | uint32_t dplane_ctx_get_lsp_num_ecmp(const struct zebra_dplane_ctx *ctx) |
1202 | { | |
1203 | DPLANE_CTX_VALID(ctx); | |
1204 | ||
1205 | return ctx->u.lsp.num_ecmp; | |
1206 | } | |
1207 | ||
d613b8e1 MS |
1208 | mpls_label_t dplane_ctx_get_pw_local_label(const struct zebra_dplane_ctx *ctx) |
1209 | { | |
1210 | DPLANE_CTX_VALID(ctx); | |
1211 | ||
1212 | return ctx->u.pw.local_label; | |
1213 | } | |
1214 | ||
1215 | mpls_label_t dplane_ctx_get_pw_remote_label(const struct zebra_dplane_ctx *ctx) | |
1216 | { | |
1217 | DPLANE_CTX_VALID(ctx); | |
1218 | ||
1219 | return ctx->u.pw.remote_label; | |
1220 | } | |
1221 | ||
1222 | int dplane_ctx_get_pw_type(const struct zebra_dplane_ctx *ctx) | |
1223 | { | |
1224 | DPLANE_CTX_VALID(ctx); | |
1225 | ||
1226 | return ctx->u.pw.type; | |
1227 | } | |
1228 | ||
1229 | int dplane_ctx_get_pw_af(const struct zebra_dplane_ctx *ctx) | |
1230 | { | |
1231 | DPLANE_CTX_VALID(ctx); | |
1232 | ||
1233 | return ctx->u.pw.af; | |
1234 | } | |
1235 | ||
1236 | uint32_t dplane_ctx_get_pw_flags(const struct zebra_dplane_ctx *ctx) | |
1237 | { | |
1238 | DPLANE_CTX_VALID(ctx); | |
1239 | ||
1240 | return ctx->u.pw.flags; | |
1241 | } | |
1242 | ||
1243 | int dplane_ctx_get_pw_status(const struct zebra_dplane_ctx *ctx) | |
1244 | { | |
1245 | DPLANE_CTX_VALID(ctx); | |
1246 | ||
1247 | return ctx->u.pw.status; | |
1248 | } | |
1249 | ||
16d69787 | 1250 | const union g_addr *dplane_ctx_get_pw_dest( |
d613b8e1 MS |
1251 | const struct zebra_dplane_ctx *ctx) |
1252 | { | |
1253 | DPLANE_CTX_VALID(ctx); | |
1254 | ||
16d69787 | 1255 | return &(ctx->u.pw.dest); |
d613b8e1 MS |
1256 | } |
1257 | ||
1258 | const union pw_protocol_fields *dplane_ctx_get_pw_proto( | |
1259 | const struct zebra_dplane_ctx *ctx) | |
1260 | { | |
1261 | DPLANE_CTX_VALID(ctx); | |
1262 | ||
1263 | return &(ctx->u.pw.fields); | |
1264 | } | |
1265 | ||
09cd307c MS |
1266 | const struct nexthop_group * |
1267 | dplane_ctx_get_pw_nhg(const struct zebra_dplane_ctx *ctx) | |
1268 | { | |
1269 | DPLANE_CTX_VALID(ctx); | |
1270 | ||
1271 | return &(ctx->u.pw.nhg); | |
1272 | } | |
1273 | ||
a4a4802a | 1274 | /* Accessors for interface information */ |
a4a4802a MS |
1275 | uint32_t dplane_ctx_get_intf_metric(const struct zebra_dplane_ctx *ctx) |
1276 | { | |
1277 | DPLANE_CTX_VALID(ctx); | |
1278 | ||
1279 | return ctx->u.intf.metric; | |
1280 | } | |
1281 | ||
1282 | /* Is interface addr p2p? */ | |
1283 | bool dplane_ctx_intf_is_connected(const struct zebra_dplane_ctx *ctx) | |
1284 | { | |
1285 | DPLANE_CTX_VALID(ctx); | |
1286 | ||
1287 | return (ctx->u.intf.flags & DPLANE_INTF_CONNECTED); | |
1288 | } | |
1289 | ||
1290 | bool dplane_ctx_intf_is_secondary(const struct zebra_dplane_ctx *ctx) | |
1291 | { | |
1292 | DPLANE_CTX_VALID(ctx); | |
1293 | ||
1294 | return (ctx->u.intf.flags & DPLANE_INTF_SECONDARY); | |
1295 | } | |
1296 | ||
64168803 MS |
1297 | bool dplane_ctx_intf_is_broadcast(const struct zebra_dplane_ctx *ctx) |
1298 | { | |
1299 | DPLANE_CTX_VALID(ctx); | |
1300 | ||
1301 | return (ctx->u.intf.flags & DPLANE_INTF_BROADCAST); | |
1302 | } | |
1303 | ||
a4a4802a MS |
1304 | const struct prefix *dplane_ctx_get_intf_addr( |
1305 | const struct zebra_dplane_ctx *ctx) | |
1306 | { | |
1307 | DPLANE_CTX_VALID(ctx); | |
1308 | ||
1309 | return &(ctx->u.intf.prefix); | |
1310 | } | |
1311 | ||
1312 | bool dplane_ctx_intf_has_dest(const struct zebra_dplane_ctx *ctx) | |
1313 | { | |
1314 | DPLANE_CTX_VALID(ctx); | |
1315 | ||
1316 | return (ctx->u.intf.flags & DPLANE_INTF_HAS_DEST); | |
1317 | } | |
1318 | ||
1319 | const struct prefix *dplane_ctx_get_intf_dest( | |
1320 | const struct zebra_dplane_ctx *ctx) | |
1321 | { | |
1322 | DPLANE_CTX_VALID(ctx); | |
1323 | ||
1324 | if (ctx->u.intf.flags & DPLANE_INTF_HAS_DEST) | |
1325 | return &(ctx->u.intf.dest_prefix); | |
1326 | else | |
1327 | return NULL; | |
1328 | } | |
1329 | ||
1330 | bool dplane_ctx_intf_has_label(const struct zebra_dplane_ctx *ctx) | |
1331 | { | |
1332 | DPLANE_CTX_VALID(ctx); | |
1333 | ||
1334 | return (ctx->u.intf.flags & DPLANE_INTF_HAS_LABEL); | |
1335 | } | |
1336 | ||
1337 | const char *dplane_ctx_get_intf_label(const struct zebra_dplane_ctx *ctx) | |
1338 | { | |
1339 | DPLANE_CTX_VALID(ctx); | |
1340 | ||
1341 | return ctx->u.intf.label; | |
1342 | } | |
1343 | ||
7597ac7b MS |
1344 | /* Accessors for MAC information */ |
1345 | vlanid_t dplane_ctx_mac_get_vlan(const struct zebra_dplane_ctx *ctx) | |
1346 | { | |
1347 | DPLANE_CTX_VALID(ctx); | |
1348 | return ctx->u.macinfo.vid; | |
1349 | } | |
1350 | ||
1351 | bool dplane_ctx_mac_is_sticky(const struct zebra_dplane_ctx *ctx) | |
1352 | { | |
1353 | DPLANE_CTX_VALID(ctx); | |
1354 | return ctx->u.macinfo.is_sticky; | |
1355 | } | |
1356 | ||
1357 | const struct ethaddr *dplane_ctx_mac_get_addr( | |
1358 | const struct zebra_dplane_ctx *ctx) | |
1359 | { | |
1360 | DPLANE_CTX_VALID(ctx); | |
1361 | return &(ctx->u.macinfo.mac); | |
1362 | } | |
1363 | ||
1364 | const struct in_addr *dplane_ctx_mac_get_vtep_ip( | |
1365 | const struct zebra_dplane_ctx *ctx) | |
1366 | { | |
1367 | DPLANE_CTX_VALID(ctx); | |
1368 | return &(ctx->u.macinfo.vtep_ip); | |
1369 | } | |
1370 | ||
478566d6 MS |
1371 | ifindex_t dplane_ctx_mac_get_br_ifindex(const struct zebra_dplane_ctx *ctx) |
1372 | { | |
1373 | DPLANE_CTX_VALID(ctx); | |
1374 | return ctx->u.macinfo.br_ifindex; | |
1375 | } | |
1376 | ||
931fa60c MS |
1377 | /* Accessors for neighbor information */ |
1378 | const struct ipaddr *dplane_ctx_neigh_get_ipaddr( | |
1379 | const struct zebra_dplane_ctx *ctx) | |
1380 | { | |
1381 | DPLANE_CTX_VALID(ctx); | |
1382 | return &(ctx->u.neigh.ip_addr); | |
1383 | } | |
1384 | ||
1385 | const struct ethaddr *dplane_ctx_neigh_get_mac( | |
1386 | const struct zebra_dplane_ctx *ctx) | |
1387 | { | |
1388 | DPLANE_CTX_VALID(ctx); | |
1389 | return &(ctx->u.neigh.mac); | |
1390 | } | |
1391 | ||
1392 | uint32_t dplane_ctx_neigh_get_flags(const struct zebra_dplane_ctx *ctx) | |
1393 | { | |
1394 | DPLANE_CTX_VALID(ctx); | |
1395 | return ctx->u.neigh.flags; | |
1396 | } | |
1397 | ||
1398 | uint16_t dplane_ctx_neigh_get_state(const struct zebra_dplane_ctx *ctx) | |
1399 | { | |
1400 | DPLANE_CTX_VALID(ctx); | |
1401 | return ctx->u.neigh.state; | |
1402 | } | |
1403 | ||
7cdb1a84 MS |
1404 | /* |
1405 | * End of dplane context accessors | |
1406 | */ | |
1407 | ||
c831033f | 1408 | |
91f16812 MS |
1409 | /* |
1410 | * Retrieve the limit on the number of pending, unprocessed updates. | |
1411 | */ | |
1412 | uint32_t dplane_get_in_queue_limit(void) | |
1413 | { | |
1414 | return atomic_load_explicit(&zdplane_info.dg_max_queued_updates, | |
1415 | memory_order_relaxed); | |
1416 | } | |
1417 | ||
1418 | /* | |
1419 | * Configure limit on the number of pending, queued updates. | |
1420 | */ | |
1421 | void dplane_set_in_queue_limit(uint32_t limit, bool set) | |
1422 | { | |
1423 | /* Reset to default on 'unset' */ | |
1424 | if (!set) | |
1425 | limit = DPLANE_DEFAULT_MAX_QUEUED; | |
1426 | ||
1427 | atomic_store_explicit(&zdplane_info.dg_max_queued_updates, limit, | |
1428 | memory_order_relaxed); | |
1429 | } | |
1430 | ||
1431 | /* | |
1432 | * Retrieve the current queue depth of incoming, unprocessed updates | |
1433 | */ | |
1434 | uint32_t dplane_get_in_queue_len(void) | |
1435 | { | |
1436 | return atomic_load_explicit(&zdplane_info.dg_routes_queued, | |
1437 | memory_order_seq_cst); | |
1438 | } | |
1439 | ||
16c628de MS |
1440 | /* |
1441 | * Common dataplane context init with zebra namespace info. | |
1442 | */ | |
1443 | static int dplane_ctx_ns_init(struct zebra_dplane_ctx *ctx, | |
1444 | struct zebra_ns *zns, | |
1445 | bool is_update) | |
1446 | { | |
1447 | dplane_info_from_zns(&(ctx->zd_ns_info), zns); | |
1448 | ||
1449 | #if defined(HAVE_NETLINK) | |
1450 | /* Increment message counter after copying to context struct - may need | |
1451 | * two messages in some 'update' cases. | |
1452 | */ | |
1453 | if (is_update) | |
1454 | zns->netlink_dplane.seq += 2; | |
1455 | else | |
1456 | zns->netlink_dplane.seq++; | |
1457 | #endif /* HAVE_NETLINK */ | |
1458 | ||
1459 | return AOK; | |
1460 | } | |
1461 | ||
7cdb1a84 MS |
1462 | /* |
1463 | * Initialize a context block for a route update from zebra data structs. | |
1464 | */ | |
25779064 | 1465 | static int dplane_ctx_route_init(struct zebra_dplane_ctx *ctx, |
5709131c | 1466 | enum dplane_op_e op, |
7cdb1a84 MS |
1467 | struct route_node *rn, |
1468 | struct route_entry *re) | |
1469 | { | |
1470 | int ret = EINVAL; | |
1471 | const struct route_table *table = NULL; | |
1472 | const rib_table_info_t *info; | |
1473 | const struct prefix *p, *src_p; | |
1474 | struct zebra_ns *zns; | |
1475 | struct zebra_vrf *zvrf; | |
f183e380 | 1476 | struct nexthop *nexthop; |
7cdb1a84 | 1477 | |
5709131c | 1478 | if (!ctx || !rn || !re) |
7cdb1a84 | 1479 | goto done; |
7cdb1a84 MS |
1480 | |
1481 | ctx->zd_op = op; | |
14b0bc8e | 1482 | ctx->zd_status = ZEBRA_DPLANE_REQUEST_SUCCESS; |
7cdb1a84 | 1483 | |
0f461727 MS |
1484 | ctx->u.rinfo.zd_type = re->type; |
1485 | ctx->u.rinfo.zd_old_type = re->type; | |
7cdb1a84 MS |
1486 | |
1487 | /* Prefixes: dest, and optional source */ | |
1488 | srcdest_rnode_prefixes(rn, &p, &src_p); | |
1489 | ||
0f461727 | 1490 | prefix_copy(&(ctx->u.rinfo.zd_dest), p); |
7cdb1a84 | 1491 | |
5709131c | 1492 | if (src_p) |
0f461727 | 1493 | prefix_copy(&(ctx->u.rinfo.zd_src), src_p); |
5709131c | 1494 | else |
0f461727 | 1495 | memset(&(ctx->u.rinfo.zd_src), 0, sizeof(ctx->u.rinfo.zd_src)); |
7cdb1a84 MS |
1496 | |
1497 | ctx->zd_table_id = re->table; | |
1498 | ||
0f461727 MS |
1499 | ctx->u.rinfo.zd_metric = re->metric; |
1500 | ctx->u.rinfo.zd_old_metric = re->metric; | |
7cdb1a84 | 1501 | ctx->zd_vrf_id = re->vrf_id; |
0f461727 MS |
1502 | ctx->u.rinfo.zd_mtu = re->mtu; |
1503 | ctx->u.rinfo.zd_nexthop_mtu = re->nexthop_mtu; | |
1504 | ctx->u.rinfo.zd_instance = re->instance; | |
1505 | ctx->u.rinfo.zd_tag = re->tag; | |
1506 | ctx->u.rinfo.zd_old_tag = re->tag; | |
1507 | ctx->u.rinfo.zd_distance = re->distance; | |
7cdb1a84 MS |
1508 | |
1509 | table = srcdest_rnode_table(rn); | |
1510 | info = table->info; | |
1511 | ||
0f461727 MS |
1512 | ctx->u.rinfo.zd_afi = info->afi; |
1513 | ctx->u.rinfo.zd_safi = info->safi; | |
7cdb1a84 | 1514 | |
7cdb1a84 | 1515 | /* Copy nexthops; recursive info is included too */ |
0eb97b86 MS |
1516 | copy_nexthops(&(ctx->u.rinfo.zd_ng.nexthop), |
1517 | re->nhe->nhg->nexthop, NULL); | |
7cdb1a84 | 1518 | |
14b0bc8e | 1519 | /* Ensure that the dplane's nexthops flags are clear. */ |
0f461727 | 1520 | for (ALL_NEXTHOPS(ctx->u.rinfo.zd_ng, nexthop)) |
f183e380 | 1521 | UNSET_FLAG(nexthop->flags, NEXTHOP_FLAG_FIB); |
f183e380 | 1522 | |
cf363e1b MS |
1523 | /* Don't need some info when capturing a system notification */ |
1524 | if (op == DPLANE_OP_SYS_ROUTE_ADD || | |
1525 | op == DPLANE_OP_SYS_ROUTE_DELETE) { | |
1526 | ret = AOK; | |
1527 | goto done; | |
1528 | } | |
1529 | ||
1530 | /* Extract ns info - can't use pointers to 'core' structs */ | |
1531 | zvrf = vrf_info_lookup(re->vrf_id); | |
1532 | zns = zvrf->zns; | |
1533 | dplane_ctx_ns_init(ctx, zns, (op == DPLANE_OP_ROUTE_UPDATE)); | |
1534 | ||
6df59152 | 1535 | #ifdef HAVE_NETLINK |
81505946 | 1536 | if (re->nhe_id) { |
ae9bfa06 SW |
1537 | struct nhg_hash_entry *nhe = |
1538 | zebra_nhg_resolve(zebra_nhg_lookup_id(re->nhe_id)); | |
6df59152 | 1539 | |
ae9bfa06 | 1540 | ctx->u.rinfo.nhe.id = nhe->id; |
6df59152 | 1541 | /* |
ae9bfa06 SW |
1542 | * Check if the nhe is installed/queued before doing anything |
1543 | * with this route. | |
08c51a38 SW |
1544 | * |
1545 | * If its a delete we only use the prefix anyway, so this only | |
1546 | * matters for INSTALL/UPDATE. | |
6df59152 | 1547 | */ |
08c51a38 SW |
1548 | if (((op == DPLANE_OP_ROUTE_INSTALL) |
1549 | || (op == DPLANE_OP_ROUTE_UPDATE)) | |
1550 | && !CHECK_FLAG(nhe->flags, NEXTHOP_GROUP_INSTALLED) | |
ae9bfa06 | 1551 | && !CHECK_FLAG(nhe->flags, NEXTHOP_GROUP_QUEUED)) { |
6df59152 SW |
1552 | ret = ENOENT; |
1553 | goto done; | |
1554 | } | |
98cda54a | 1555 | } |
6df59152 | 1556 | #endif /* HAVE_NETLINK */ |
de3f5488 | 1557 | |
7cdb1a84 MS |
1558 | /* Trying out the sequence number idea, so we can try to detect |
1559 | * when a result is stale. | |
1560 | */ | |
1485bbe7 | 1561 | re->dplane_sequence = zebra_router_get_next_sequence(); |
7cdb1a84 MS |
1562 | ctx->zd_seq = re->dplane_sequence; |
1563 | ||
1564 | ret = AOK; | |
1565 | ||
1566 | done: | |
1567 | return ret; | |
1568 | } | |
1569 | ||
f820d025 SW |
1570 | /** |
1571 | * dplane_ctx_nexthop_init() - Initialize a context block for a nexthop update | |
1572 | * | |
1573 | * @ctx: Dataplane context to init | |
1574 | * @op: Operation being performed | |
1575 | * @nhe: Nexthop group hash entry | |
1576 | * | |
1577 | * Return: Result status | |
1578 | */ | |
1579 | static int dplane_ctx_nexthop_init(struct zebra_dplane_ctx *ctx, | |
1580 | enum dplane_op_e op, | |
1581 | struct nhg_hash_entry *nhe) | |
1582 | { | |
a7df21c4 | 1583 | struct zebra_vrf *zvrf = NULL; |
8e401b25 | 1584 | struct zebra_ns *zns = NULL; |
1909e63a | 1585 | |
f820d025 SW |
1586 | int ret = EINVAL; |
1587 | ||
1588 | if (!ctx || !nhe) | |
1589 | goto done; | |
1590 | ||
1591 | ctx->zd_op = op; | |
1592 | ctx->zd_status = ZEBRA_DPLANE_REQUEST_SUCCESS; | |
1593 | ||
1594 | /* Copy over nhe info */ | |
0c8215cb SW |
1595 | ctx->u.rinfo.nhe.id = nhe->id; |
1596 | ctx->u.rinfo.nhe.afi = nhe->afi; | |
1597 | ctx->u.rinfo.nhe.vrf_id = nhe->vrf_id; | |
38e40db1 | 1598 | ctx->u.rinfo.nhe.type = nhe->type; |
0c8215cb SW |
1599 | |
1600 | nexthop_group_copy(&(ctx->u.rinfo.nhe.ng), nhe->nhg); | |
1601 | ||
98cda54a SW |
1602 | /* If its a group, convert it to a grp array of ids */ |
1603 | if (!zebra_nhg_depends_is_empty(nhe) | |
1604 | && !CHECK_FLAG(nhe->flags, NEXTHOP_GROUP_RECURSIVE)) | |
8dbc800f SW |
1605 | ctx->u.rinfo.nhe.nh_grp_count = zebra_nhg_nhe2grp( |
1606 | ctx->u.rinfo.nhe.nh_grp, nhe, MULTIPATH_NUM); | |
f820d025 | 1607 | |
a7df21c4 SW |
1608 | zvrf = vrf_info_lookup(nhe->vrf_id); |
1609 | ||
1610 | /* | |
1611 | * Fallback to default namespace if the vrf got ripped out from under | |
1612 | * us. | |
1613 | */ | |
1614 | zns = zvrf ? zvrf->zns : zebra_ns_lookup(NS_DEFAULT); | |
1909e63a | 1615 | |
2d3c57e6 SW |
1616 | /* |
1617 | * TODO: Might not need to mark this as an update, since | |
1618 | * it probably won't require two messages | |
1619 | */ | |
1909e63a SW |
1620 | dplane_ctx_ns_init(ctx, zns, (op == DPLANE_OP_NH_UPDATE)); |
1621 | ||
f820d025 SW |
1622 | ret = AOK; |
1623 | ||
1624 | done: | |
1625 | return ret; | |
1626 | } | |
1627 | ||
16c628de MS |
1628 | /* |
1629 | * Capture information for an LSP update in a dplane context. | |
1630 | */ | |
1631 | static int dplane_ctx_lsp_init(struct zebra_dplane_ctx *ctx, | |
1632 | enum dplane_op_e op, | |
1633 | zebra_lsp_t *lsp) | |
1634 | { | |
1635 | int ret = AOK; | |
1636 | zebra_nhlfe_t *nhlfe, *new_nhlfe; | |
1637 | ||
1638 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) | |
1639 | zlog_debug("init dplane ctx %s: in-label %u ecmp# %d", | |
1640 | dplane_op2str(op), lsp->ile.in_label, | |
1641 | lsp->num_ecmp); | |
1642 | ||
1643 | ctx->zd_op = op; | |
1644 | ctx->zd_status = ZEBRA_DPLANE_REQUEST_SUCCESS; | |
1645 | ||
1646 | /* Capture namespace info */ | |
1647 | dplane_ctx_ns_init(ctx, zebra_ns_lookup(NS_DEFAULT), | |
1648 | (op == DPLANE_OP_LSP_UPDATE)); | |
1649 | ||
1650 | memset(&ctx->u.lsp, 0, sizeof(ctx->u.lsp)); | |
1651 | ||
1652 | ctx->u.lsp.ile = lsp->ile; | |
1653 | ctx->u.lsp.addr_family = lsp->addr_family; | |
1654 | ctx->u.lsp.num_ecmp = lsp->num_ecmp; | |
1655 | ctx->u.lsp.flags = lsp->flags; | |
1656 | ||
1657 | /* Copy source LSP's nhlfes, and capture 'best' nhlfe */ | |
1658 | for (nhlfe = lsp->nhlfe_list; nhlfe; nhlfe = nhlfe->next) { | |
1659 | /* Not sure if this is meaningful... */ | |
1660 | if (nhlfe->nexthop == NULL) | |
1661 | continue; | |
1662 | ||
1663 | new_nhlfe = | |
1664 | zebra_mpls_lsp_add_nhlfe( | |
1665 | &(ctx->u.lsp), | |
1666 | nhlfe->type, | |
1667 | nhlfe->nexthop->type, | |
1668 | &(nhlfe->nexthop->gate), | |
1669 | nhlfe->nexthop->ifindex, | |
5065db0a RW |
1670 | nhlfe->nexthop->nh_label->num_labels, |
1671 | nhlfe->nexthop->nh_label->label); | |
16c628de MS |
1672 | |
1673 | if (new_nhlfe == NULL || new_nhlfe->nexthop == NULL) { | |
1674 | ret = ENOMEM; | |
1675 | break; | |
1676 | } | |
1677 | ||
1678 | /* Need to copy flags too */ | |
1679 | new_nhlfe->flags = nhlfe->flags; | |
1680 | new_nhlfe->nexthop->flags = nhlfe->nexthop->flags; | |
1681 | ||
1682 | if (nhlfe == lsp->best_nhlfe) | |
1683 | ctx->u.lsp.best_nhlfe = new_nhlfe; | |
1684 | } | |
1685 | ||
1686 | /* On error the ctx will be cleaned-up, so we don't need to | |
1687 | * deal with any allocated nhlfe or nexthop structs here. | |
1688 | */ | |
1689 | ||
1690 | return ret; | |
1691 | } | |
1692 | ||
97d8d05a MS |
1693 | /* |
1694 | * Capture information for an LSP update in a dplane context. | |
1695 | */ | |
1696 | static int dplane_ctx_pw_init(struct zebra_dplane_ctx *ctx, | |
1697 | enum dplane_op_e op, | |
1698 | struct zebra_pw *pw) | |
1699 | { | |
09cd307c MS |
1700 | struct prefix p; |
1701 | afi_t afi; | |
1702 | struct route_table *table; | |
1703 | struct route_node *rn; | |
1704 | struct route_entry *re; | |
1705 | ||
97d8d05a MS |
1706 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) |
1707 | zlog_debug("init dplane ctx %s: pw '%s', loc %u, rem %u", | |
1708 | dplane_op2str(op), pw->ifname, pw->local_label, | |
1709 | pw->remote_label); | |
1710 | ||
1711 | ctx->zd_op = op; | |
1712 | ctx->zd_status = ZEBRA_DPLANE_REQUEST_SUCCESS; | |
1713 | ||
1714 | /* Capture namespace info: no netlink support as of 12/18, | |
1715 | * but just in case... | |
1716 | */ | |
1717 | dplane_ctx_ns_init(ctx, zebra_ns_lookup(NS_DEFAULT), false); | |
1718 | ||
1719 | memset(&ctx->u.pw, 0, sizeof(ctx->u.pw)); | |
1720 | ||
1721 | /* This name appears to be c-string, so we use string copy. */ | |
7c7ef4a8 | 1722 | strlcpy(ctx->zd_ifname, pw->ifname, sizeof(ctx->zd_ifname)); |
16d69787 | 1723 | |
9bd9717b | 1724 | ctx->zd_vrf_id = pw->vrf_id; |
7c7ef4a8 | 1725 | ctx->zd_ifindex = pw->ifindex; |
97d8d05a MS |
1726 | ctx->u.pw.type = pw->type; |
1727 | ctx->u.pw.af = pw->af; | |
1728 | ctx->u.pw.local_label = pw->local_label; | |
1729 | ctx->u.pw.remote_label = pw->remote_label; | |
1730 | ctx->u.pw.flags = pw->flags; | |
1731 | ||
16d69787 | 1732 | ctx->u.pw.dest = pw->nexthop; |
97d8d05a MS |
1733 | |
1734 | ctx->u.pw.fields = pw->data; | |
1735 | ||
09cd307c MS |
1736 | /* Capture nexthop info for the pw destination. We need to look |
1737 | * up and use zebra datastructs, but we're running in the zebra | |
1738 | * pthread here so that should be ok. | |
1739 | */ | |
1740 | memcpy(&p.u, &pw->nexthop, sizeof(pw->nexthop)); | |
1741 | p.family = pw->af; | |
1742 | p.prefixlen = ((pw->af == AF_INET) ? | |
1743 | IPV4_MAX_PREFIXLEN : IPV6_MAX_PREFIXLEN); | |
1744 | ||
1745 | afi = (pw->af == AF_INET) ? AFI_IP : AFI_IP6; | |
1746 | table = zebra_vrf_table(afi, SAFI_UNICAST, pw->vrf_id); | |
1747 | if (table) { | |
1748 | rn = route_node_match(table, &p); | |
1749 | if (rn) { | |
1750 | RNODE_FOREACH_RE(rn, re) { | |
1751 | if (CHECK_FLAG(re->flags, ZEBRA_FLAG_SELECTED)) | |
1752 | break; | |
1753 | } | |
1754 | ||
1755 | if (re) | |
1756 | copy_nexthops(&(ctx->u.pw.nhg.nexthop), | |
0eb97b86 | 1757 | re->nhe->nhg->nexthop, NULL); |
09cd307c MS |
1758 | |
1759 | route_unlock_node(rn); | |
1760 | } | |
1761 | } | |
1762 | ||
9f2d0354 | 1763 | return AOK; |
97d8d05a MS |
1764 | } |
1765 | ||
7cdb1a84 | 1766 | /* |
3fe4ccc4 | 1767 | * Enqueue a new update, |
16c628de | 1768 | * and ensure an event is active for the dataplane pthread. |
7cdb1a84 | 1769 | */ |
3fe4ccc4 | 1770 | static int dplane_update_enqueue(struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
1771 | { |
1772 | int ret = EINVAL; | |
91f16812 | 1773 | uint32_t high, curr; |
7cdb1a84 | 1774 | |
16c628de | 1775 | /* Enqueue for processing by the dataplane pthread */ |
7cdb1a84 MS |
1776 | DPLANE_LOCK(); |
1777 | { | |
3fe4ccc4 | 1778 | TAILQ_INSERT_TAIL(&zdplane_info.dg_update_ctx_q, ctx, |
25779064 | 1779 | zd_q_entries); |
7cdb1a84 MS |
1780 | } |
1781 | DPLANE_UNLOCK(); | |
1782 | ||
e07e9549 MS |
1783 | curr = atomic_add_fetch_explicit( |
1784 | #ifdef __clang__ | |
1785 | /* TODO -- issue with the clang atomic/intrinsics currently; | |
1786 | * casting away the 'Atomic'-ness of the variable works. | |
1787 | */ | |
1788 | (uint32_t *)&(zdplane_info.dg_routes_queued), | |
1789 | #else | |
1790 | &(zdplane_info.dg_routes_queued), | |
1791 | #endif | |
1792 | 1, memory_order_seq_cst); | |
91f16812 MS |
1793 | |
1794 | /* Maybe update high-water counter also */ | |
1795 | high = atomic_load_explicit(&zdplane_info.dg_routes_queued_max, | |
1796 | memory_order_seq_cst); | |
1797 | while (high < curr) { | |
1798 | if (atomic_compare_exchange_weak_explicit( | |
1799 | &zdplane_info.dg_routes_queued_max, | |
1800 | &high, curr, | |
1801 | memory_order_seq_cst, | |
1802 | memory_order_seq_cst)) | |
1803 | break; | |
1804 | } | |
1805 | ||
7cdb1a84 | 1806 | /* Ensure that an event for the dataplane thread is active */ |
c831033f | 1807 | ret = dplane_provider_work_ready(); |
7cdb1a84 | 1808 | |
5709131c | 1809 | return ret; |
7cdb1a84 MS |
1810 | } |
1811 | ||
7cdb1a84 MS |
1812 | /* |
1813 | * Utility that prepares a route update and enqueues it for processing | |
1814 | */ | |
655d681a MS |
1815 | static enum zebra_dplane_result |
1816 | dplane_route_update_internal(struct route_node *rn, | |
1817 | struct route_entry *re, | |
1818 | struct route_entry *old_re, | |
5709131c | 1819 | enum dplane_op_e op) |
7cdb1a84 | 1820 | { |
655d681a | 1821 | enum zebra_dplane_result result = ZEBRA_DPLANE_REQUEST_FAILURE; |
7cdb1a84 | 1822 | int ret = EINVAL; |
25779064 | 1823 | struct zebra_dplane_ctx *ctx = NULL; |
7cdb1a84 MS |
1824 | |
1825 | /* Obtain context block */ | |
1826 | ctx = dplane_ctx_alloc(); | |
7cdb1a84 MS |
1827 | |
1828 | /* Init context with info from zebra data structs */ | |
1829 | ret = dplane_ctx_route_init(ctx, op, rn, re); | |
1830 | if (ret == AOK) { | |
1831 | /* Capture some extra info for update case | |
1832 | * where there's a different 'old' route. | |
1833 | */ | |
b8e0423d MS |
1834 | if ((op == DPLANE_OP_ROUTE_UPDATE) && |
1835 | old_re && (old_re != re)) { | |
7cdb1a84 MS |
1836 | ctx->zd_is_update = true; |
1837 | ||
1485bbe7 DS |
1838 | old_re->dplane_sequence = |
1839 | zebra_router_get_next_sequence(); | |
7cdb1a84 MS |
1840 | ctx->zd_old_seq = old_re->dplane_sequence; |
1841 | ||
0f461727 MS |
1842 | ctx->u.rinfo.zd_old_tag = old_re->tag; |
1843 | ctx->u.rinfo.zd_old_type = old_re->type; | |
1844 | ctx->u.rinfo.zd_old_instance = old_re->instance; | |
1845 | ctx->u.rinfo.zd_old_distance = old_re->distance; | |
1846 | ctx->u.rinfo.zd_old_metric = old_re->metric; | |
01ce7cba MS |
1847 | |
1848 | #ifndef HAVE_NETLINK | |
f183e380 MS |
1849 | /* For bsd, capture previous re's nexthops too, sigh. |
1850 | * We'll need these to do per-nexthop deletes. | |
1851 | */ | |
0f461727 | 1852 | copy_nexthops(&(ctx->u.rinfo.zd_old_ng.nexthop), |
0eb97b86 | 1853 | old_re->nhe->nhg->nexthop, NULL); |
01ce7cba | 1854 | #endif /* !HAVE_NETLINK */ |
7cdb1a84 MS |
1855 | } |
1856 | ||
1857 | /* Enqueue context for processing */ | |
3fe4ccc4 | 1858 | ret = dplane_update_enqueue(ctx); |
7cdb1a84 MS |
1859 | } |
1860 | ||
91f16812 | 1861 | /* Update counter */ |
25779064 | 1862 | atomic_fetch_add_explicit(&zdplane_info.dg_routes_in, 1, |
1d11b21f MS |
1863 | memory_order_relaxed); |
1864 | ||
91f16812 | 1865 | if (ret == AOK) |
655d681a | 1866 | result = ZEBRA_DPLANE_REQUEST_QUEUED; |
16c628de | 1867 | else { |
6df59152 SW |
1868 | if (ret == ENOENT) |
1869 | result = ZEBRA_DPLANE_REQUEST_SUCCESS; | |
1870 | else | |
1871 | atomic_fetch_add_explicit(&zdplane_info.dg_route_errors, | |
1872 | 1, memory_order_relaxed); | |
16c628de MS |
1873 | if (ctx) |
1874 | dplane_ctx_free(&ctx); | |
1d11b21f | 1875 | } |
7cdb1a84 | 1876 | |
5709131c | 1877 | return result; |
7cdb1a84 MS |
1878 | } |
1879 | ||
f820d025 SW |
1880 | /** |
1881 | * dplane_nexthop_update_internal() - Helper for enqueuing nexthop changes | |
1882 | * | |
1883 | * @nhe: Nexthop group hash entry where the change occured | |
1884 | * @op: The operation to be enqued | |
1885 | * | |
1886 | * Return: Result of the change | |
1887 | */ | |
1888 | static enum zebra_dplane_result | |
1889 | dplane_nexthop_update_internal(struct nhg_hash_entry *nhe, enum dplane_op_e op) | |
1890 | { | |
1891 | enum zebra_dplane_result result = ZEBRA_DPLANE_REQUEST_FAILURE; | |
1892 | int ret = EINVAL; | |
1893 | struct zebra_dplane_ctx *ctx = NULL; | |
1894 | ||
1895 | /* Obtain context block */ | |
1896 | ctx = dplane_ctx_alloc(); | |
1897 | if (!ctx) { | |
1898 | ret = ENOMEM; | |
1899 | goto done; | |
1900 | } | |
1901 | ||
1902 | ret = dplane_ctx_nexthop_init(ctx, op, nhe); | |
2d3c57e6 | 1903 | if (ret == AOK) |
f820d025 | 1904 | ret = dplane_update_enqueue(ctx); |
2d3c57e6 | 1905 | |
f820d025 SW |
1906 | done: |
1907 | /* Update counter */ | |
1908 | atomic_fetch_add_explicit(&zdplane_info.dg_nexthops_in, 1, | |
1909 | memory_order_relaxed); | |
1910 | ||
1911 | if (ret == AOK) | |
1912 | result = ZEBRA_DPLANE_REQUEST_QUEUED; | |
1913 | else { | |
81505946 SW |
1914 | atomic_fetch_add_explicit(&zdplane_info.dg_nexthop_errors, 1, |
1915 | memory_order_relaxed); | |
f820d025 SW |
1916 | if (ctx) |
1917 | dplane_ctx_free(&ctx); | |
1918 | } | |
1919 | ||
1920 | return result; | |
1921 | } | |
1922 | ||
7cdb1a84 MS |
1923 | /* |
1924 | * Enqueue a route 'add' for the dataplane. | |
1925 | */ | |
655d681a MS |
1926 | enum zebra_dplane_result dplane_route_add(struct route_node *rn, |
1927 | struct route_entry *re) | |
7cdb1a84 | 1928 | { |
655d681a | 1929 | enum zebra_dplane_result ret = ZEBRA_DPLANE_REQUEST_FAILURE; |
7cdb1a84 | 1930 | |
5709131c | 1931 | if (rn == NULL || re == NULL) |
7cdb1a84 | 1932 | goto done; |
7cdb1a84 MS |
1933 | |
1934 | ret = dplane_route_update_internal(rn, re, NULL, | |
1935 | DPLANE_OP_ROUTE_INSTALL); | |
1936 | ||
1937 | done: | |
5709131c | 1938 | return ret; |
7cdb1a84 MS |
1939 | } |
1940 | ||
1941 | /* | |
1942 | * Enqueue a route update for the dataplane. | |
1943 | */ | |
655d681a MS |
1944 | enum zebra_dplane_result dplane_route_update(struct route_node *rn, |
1945 | struct route_entry *re, | |
1946 | struct route_entry *old_re) | |
7cdb1a84 | 1947 | { |
655d681a | 1948 | enum zebra_dplane_result ret = ZEBRA_DPLANE_REQUEST_FAILURE; |
7cdb1a84 | 1949 | |
5709131c | 1950 | if (rn == NULL || re == NULL) |
7cdb1a84 | 1951 | goto done; |
7cdb1a84 MS |
1952 | |
1953 | ret = dplane_route_update_internal(rn, re, old_re, | |
1954 | DPLANE_OP_ROUTE_UPDATE); | |
7cdb1a84 | 1955 | done: |
5709131c | 1956 | return ret; |
7cdb1a84 MS |
1957 | } |
1958 | ||
1959 | /* | |
1960 | * Enqueue a route removal for the dataplane. | |
1961 | */ | |
655d681a MS |
1962 | enum zebra_dplane_result dplane_route_delete(struct route_node *rn, |
1963 | struct route_entry *re) | |
7cdb1a84 | 1964 | { |
655d681a | 1965 | enum zebra_dplane_result ret = ZEBRA_DPLANE_REQUEST_FAILURE; |
7cdb1a84 | 1966 | |
5709131c | 1967 | if (rn == NULL || re == NULL) |
7cdb1a84 | 1968 | goto done; |
7cdb1a84 MS |
1969 | |
1970 | ret = dplane_route_update_internal(rn, re, NULL, | |
1971 | DPLANE_OP_ROUTE_DELETE); | |
1972 | ||
1973 | done: | |
5709131c | 1974 | return ret; |
7cdb1a84 MS |
1975 | } |
1976 | ||
cf363e1b MS |
1977 | /* |
1978 | * Notify the dplane when system/connected routes change. | |
1979 | */ | |
1980 | enum zebra_dplane_result dplane_sys_route_add(struct route_node *rn, | |
1981 | struct route_entry *re) | |
1982 | { | |
1983 | enum zebra_dplane_result ret = ZEBRA_DPLANE_REQUEST_FAILURE; | |
1984 | ||
1985 | /* Ignore this event unless a provider plugin has requested it. */ | |
1986 | if (!zdplane_info.dg_sys_route_notifs) { | |
1987 | ret = ZEBRA_DPLANE_REQUEST_SUCCESS; | |
1988 | goto done; | |
1989 | } | |
1990 | ||
1991 | if (rn == NULL || re == NULL) | |
1992 | goto done; | |
1993 | ||
1994 | ret = dplane_route_update_internal(rn, re, NULL, | |
1995 | DPLANE_OP_SYS_ROUTE_ADD); | |
1996 | ||
1997 | done: | |
1998 | return ret; | |
1999 | } | |
2000 | ||
2001 | /* | |
2002 | * Notify the dplane when system/connected routes are deleted. | |
2003 | */ | |
2004 | enum zebra_dplane_result dplane_sys_route_del(struct route_node *rn, | |
2005 | struct route_entry *re) | |
2006 | { | |
2007 | enum zebra_dplane_result ret = ZEBRA_DPLANE_REQUEST_FAILURE; | |
2008 | ||
2009 | /* Ignore this event unless a provider plugin has requested it. */ | |
2010 | if (!zdplane_info.dg_sys_route_notifs) { | |
2011 | ret = ZEBRA_DPLANE_REQUEST_SUCCESS; | |
2012 | goto done; | |
2013 | } | |
2014 | ||
2015 | if (rn == NULL || re == NULL) | |
2016 | goto done; | |
2017 | ||
2018 | ret = dplane_route_update_internal(rn, re, NULL, | |
2019 | DPLANE_OP_SYS_ROUTE_DELETE); | |
2020 | ||
2021 | done: | |
2022 | return ret; | |
2023 | } | |
2024 | ||
188a00e0 MS |
2025 | /* |
2026 | * Update from an async notification, to bring other fibs up-to-date. | |
2027 | */ | |
2028 | enum zebra_dplane_result | |
2029 | dplane_route_notif_update(struct route_node *rn, | |
2030 | struct route_entry *re, | |
2031 | enum dplane_op_e op, | |
2032 | struct zebra_dplane_ctx *ctx) | |
2033 | { | |
2034 | enum zebra_dplane_result ret = ZEBRA_DPLANE_REQUEST_FAILURE; | |
2035 | struct zebra_dplane_ctx *new_ctx = NULL; | |
2036 | struct nexthop *nexthop; | |
2037 | ||
2038 | if (rn == NULL || re == NULL) | |
2039 | goto done; | |
2040 | ||
2041 | new_ctx = dplane_ctx_alloc(); | |
2042 | if (new_ctx == NULL) | |
2043 | goto done; | |
2044 | ||
2045 | /* Init context with info from zebra data structs */ | |
2046 | dplane_ctx_route_init(new_ctx, op, rn, re); | |
2047 | ||
2048 | /* For add/update, need to adjust the nexthops so that we match | |
2049 | * the notification state, which may not be the route-entry/RIB | |
2050 | * state. | |
2051 | */ | |
2052 | if (op == DPLANE_OP_ROUTE_UPDATE || | |
2053 | op == DPLANE_OP_ROUTE_INSTALL) { | |
2054 | ||
2055 | nexthops_free(new_ctx->u.rinfo.zd_ng.nexthop); | |
2056 | new_ctx->u.rinfo.zd_ng.nexthop = NULL; | |
2057 | ||
2058 | copy_nexthops(&(new_ctx->u.rinfo.zd_ng.nexthop), | |
2059 | (rib_active_nhg(re))->nexthop, NULL); | |
2060 | ||
2061 | for (ALL_NEXTHOPS(new_ctx->u.rinfo.zd_ng, nexthop)) | |
2062 | UNSET_FLAG(nexthop->flags, NEXTHOP_FLAG_FIB); | |
2063 | ||
2064 | } | |
2065 | ||
2066 | /* Capture info about the source of the notification, in 'ctx' */ | |
2067 | dplane_ctx_set_notif_provider(new_ctx, | |
2068 | dplane_ctx_get_notif_provider(ctx)); | |
2069 | ||
3fe4ccc4 | 2070 | dplane_update_enqueue(new_ctx); |
188a00e0 MS |
2071 | |
2072 | ret = ZEBRA_DPLANE_REQUEST_QUEUED; | |
2073 | ||
2074 | done: | |
2075 | return ret; | |
2076 | } | |
2077 | ||
f820d025 SW |
2078 | /* |
2079 | * Enqueue a nexthop add for the dataplane. | |
2080 | */ | |
2081 | enum zebra_dplane_result dplane_nexthop_add(struct nhg_hash_entry *nhe) | |
2082 | { | |
2083 | enum zebra_dplane_result ret = ZEBRA_DPLANE_REQUEST_FAILURE; | |
2084 | ||
2085 | if (nhe) | |
2086 | ret = dplane_nexthop_update_internal(nhe, DPLANE_OP_NH_INSTALL); | |
2087 | return ret; | |
2088 | } | |
2089 | ||
2090 | /* | |
2091 | * Enqueue a nexthop update for the dataplane. | |
81505946 SW |
2092 | * |
2093 | * Might not need this func since zebra's nexthop objects should be immutable? | |
f820d025 SW |
2094 | */ |
2095 | enum zebra_dplane_result dplane_nexthop_update(struct nhg_hash_entry *nhe) | |
2096 | { | |
2097 | enum zebra_dplane_result ret = ZEBRA_DPLANE_REQUEST_FAILURE; | |
2098 | ||
2099 | if (nhe) | |
2100 | ret = dplane_nexthop_update_internal(nhe, DPLANE_OP_NH_UPDATE); | |
2101 | return ret; | |
2102 | } | |
2103 | ||
2104 | /* | |
2105 | * Enqueue a nexthop removal for the dataplane. | |
2106 | */ | |
2107 | enum zebra_dplane_result dplane_nexthop_delete(struct nhg_hash_entry *nhe) | |
2108 | { | |
2109 | enum zebra_dplane_result ret = ZEBRA_DPLANE_REQUEST_FAILURE; | |
2110 | ||
2111 | if (nhe) | |
2112 | ret = dplane_nexthop_update_internal(nhe, DPLANE_OP_NH_DELETE); | |
2113 | ||
2114 | return ret; | |
2115 | } | |
2116 | ||
16c628de MS |
2117 | /* |
2118 | * Enqueue LSP add for the dataplane. | |
2119 | */ | |
2120 | enum zebra_dplane_result dplane_lsp_add(zebra_lsp_t *lsp) | |
2121 | { | |
2122 | enum zebra_dplane_result ret = | |
2123 | lsp_update_internal(lsp, DPLANE_OP_LSP_INSTALL); | |
2124 | ||
2125 | return ret; | |
2126 | } | |
2127 | ||
2128 | /* | |
2129 | * Enqueue LSP update for the dataplane. | |
2130 | */ | |
2131 | enum zebra_dplane_result dplane_lsp_update(zebra_lsp_t *lsp) | |
2132 | { | |
2133 | enum zebra_dplane_result ret = | |
2134 | lsp_update_internal(lsp, DPLANE_OP_LSP_UPDATE); | |
2135 | ||
2136 | return ret; | |
2137 | } | |
2138 | ||
2139 | /* | |
2140 | * Enqueue LSP delete for the dataplane. | |
2141 | */ | |
2142 | enum zebra_dplane_result dplane_lsp_delete(zebra_lsp_t *lsp) | |
2143 | { | |
2144 | enum zebra_dplane_result ret = | |
2145 | lsp_update_internal(lsp, DPLANE_OP_LSP_DELETE); | |
2146 | ||
2147 | return ret; | |
2148 | } | |
2149 | ||
188a00e0 MS |
2150 | /* Update or un-install resulting from an async notification */ |
2151 | enum zebra_dplane_result | |
2152 | dplane_lsp_notif_update(zebra_lsp_t *lsp, | |
2153 | enum dplane_op_e op, | |
2154 | struct zebra_dplane_ctx *notif_ctx) | |
2155 | { | |
2156 | enum zebra_dplane_result result = ZEBRA_DPLANE_REQUEST_FAILURE; | |
2157 | int ret = EINVAL; | |
2158 | struct zebra_dplane_ctx *ctx = NULL; | |
2159 | ||
2160 | /* Obtain context block */ | |
2161 | ctx = dplane_ctx_alloc(); | |
2162 | if (ctx == NULL) { | |
2163 | ret = ENOMEM; | |
2164 | goto done; | |
2165 | } | |
2166 | ||
2167 | ret = dplane_ctx_lsp_init(ctx, op, lsp); | |
2168 | if (ret != AOK) | |
2169 | goto done; | |
2170 | ||
2171 | /* Capture info about the source of the notification */ | |
2172 | dplane_ctx_set_notif_provider( | |
2173 | ctx, | |
2174 | dplane_ctx_get_notif_provider(notif_ctx)); | |
2175 | ||
3fe4ccc4 | 2176 | ret = dplane_update_enqueue(ctx); |
188a00e0 MS |
2177 | |
2178 | done: | |
2179 | /* Update counter */ | |
2180 | atomic_fetch_add_explicit(&zdplane_info.dg_lsps_in, 1, | |
2181 | memory_order_relaxed); | |
2182 | ||
2183 | if (ret == AOK) | |
2184 | result = ZEBRA_DPLANE_REQUEST_QUEUED; | |
2185 | else { | |
2186 | atomic_fetch_add_explicit(&zdplane_info.dg_lsp_errors, 1, | |
2187 | memory_order_relaxed); | |
2188 | if (ctx) | |
2189 | dplane_ctx_free(&ctx); | |
2190 | } | |
2191 | return result; | |
2192 | } | |
2193 | ||
97d8d05a MS |
2194 | /* |
2195 | * Enqueue pseudowire install for the dataplane. | |
2196 | */ | |
2197 | enum zebra_dplane_result dplane_pw_install(struct zebra_pw *pw) | |
2198 | { | |
2199 | return pw_update_internal(pw, DPLANE_OP_PW_INSTALL); | |
2200 | } | |
2201 | ||
2202 | /* | |
2203 | * Enqueue pseudowire un-install for the dataplane. | |
2204 | */ | |
2205 | enum zebra_dplane_result dplane_pw_uninstall(struct zebra_pw *pw) | |
2206 | { | |
2207 | return pw_update_internal(pw, DPLANE_OP_PW_UNINSTALL); | |
2208 | } | |
2209 | ||
16c628de MS |
2210 | /* |
2211 | * Common internal LSP update utility | |
2212 | */ | |
2213 | static enum zebra_dplane_result lsp_update_internal(zebra_lsp_t *lsp, | |
2214 | enum dplane_op_e op) | |
2215 | { | |
2216 | enum zebra_dplane_result result = ZEBRA_DPLANE_REQUEST_FAILURE; | |
2217 | int ret = EINVAL; | |
2218 | struct zebra_dplane_ctx *ctx = NULL; | |
2219 | ||
2220 | /* Obtain context block */ | |
2221 | ctx = dplane_ctx_alloc(); | |
16c628de MS |
2222 | |
2223 | ret = dplane_ctx_lsp_init(ctx, op, lsp); | |
2224 | if (ret != AOK) | |
2225 | goto done; | |
2226 | ||
3fe4ccc4 | 2227 | ret = dplane_update_enqueue(ctx); |
16c628de MS |
2228 | |
2229 | done: | |
2230 | /* Update counter */ | |
2231 | atomic_fetch_add_explicit(&zdplane_info.dg_lsps_in, 1, | |
2232 | memory_order_relaxed); | |
2233 | ||
2234 | if (ret == AOK) | |
2235 | result = ZEBRA_DPLANE_REQUEST_QUEUED; | |
2236 | else { | |
2237 | atomic_fetch_add_explicit(&zdplane_info.dg_lsp_errors, 1, | |
2238 | memory_order_relaxed); | |
d8e479a3 | 2239 | dplane_ctx_free(&ctx); |
16c628de MS |
2240 | } |
2241 | ||
2242 | return result; | |
2243 | } | |
2244 | ||
97d8d05a MS |
2245 | /* |
2246 | * Internal, common handler for pseudowire updates. | |
2247 | */ | |
2248 | static enum zebra_dplane_result pw_update_internal(struct zebra_pw *pw, | |
2249 | enum dplane_op_e op) | |
2250 | { | |
2251 | enum zebra_dplane_result result = ZEBRA_DPLANE_REQUEST_FAILURE; | |
2252 | int ret; | |
2253 | struct zebra_dplane_ctx *ctx = NULL; | |
2254 | ||
2255 | ctx = dplane_ctx_alloc(); | |
97d8d05a MS |
2256 | |
2257 | ret = dplane_ctx_pw_init(ctx, op, pw); | |
2258 | if (ret != AOK) | |
2259 | goto done; | |
2260 | ||
3fe4ccc4 | 2261 | ret = dplane_update_enqueue(ctx); |
97d8d05a MS |
2262 | |
2263 | done: | |
2264 | /* Update counter */ | |
2265 | atomic_fetch_add_explicit(&zdplane_info.dg_pws_in, 1, | |
2266 | memory_order_relaxed); | |
2267 | ||
2268 | if (ret == AOK) | |
2269 | result = ZEBRA_DPLANE_REQUEST_QUEUED; | |
2270 | else { | |
2271 | atomic_fetch_add_explicit(&zdplane_info.dg_pw_errors, 1, | |
2272 | memory_order_relaxed); | |
d8e479a3 | 2273 | dplane_ctx_free(&ctx); |
97d8d05a MS |
2274 | } |
2275 | ||
2276 | return result; | |
2277 | } | |
2278 | ||
a4a4802a MS |
2279 | /* |
2280 | * Enqueue interface address add for the dataplane. | |
2281 | */ | |
2282 | enum zebra_dplane_result dplane_intf_addr_set(const struct interface *ifp, | |
2283 | const struct connected *ifc) | |
2284 | { | |
64168803 MS |
2285 | #if !defined(HAVE_NETLINK) && defined(HAVE_STRUCT_IFALIASREQ) |
2286 | /* Extra checks for this OS path. */ | |
2287 | ||
2288 | /* Don't configure PtP addresses on broadcast ifs or reverse */ | |
2289 | if (!(ifp->flags & IFF_POINTOPOINT) != !CONNECTED_PEER(ifc)) { | |
2290 | if (IS_ZEBRA_DEBUG_KERNEL || IS_ZEBRA_DEBUG_DPLANE) | |
2291 | zlog_debug("Failed to set intf addr: mismatch p2p and connected"); | |
2292 | ||
2293 | return ZEBRA_DPLANE_REQUEST_FAILURE; | |
2294 | } | |
2295 | ||
2296 | /* Ensure that no existing installed v4 route conflicts with | |
2297 | * the new interface prefix. This check must be done in the | |
2298 | * zebra pthread context, and any route delete (if needed) | |
2299 | * is enqueued before the interface address programming attempt. | |
2300 | */ | |
2301 | if (ifc->address->family == AF_INET) { | |
2302 | struct prefix_ipv4 *p; | |
2303 | ||
2304 | p = (struct prefix_ipv4 *)ifc->address; | |
a36898e7 | 2305 | rib_lookup_and_pushup(p, ifp->vrf_id); |
64168803 MS |
2306 | } |
2307 | #endif | |
2308 | ||
2309 | return intf_addr_update_internal(ifp, ifc, DPLANE_OP_ADDR_INSTALL); | |
a4a4802a MS |
2310 | } |
2311 | ||
2312 | /* | |
2313 | * Enqueue interface address remove/uninstall for the dataplane. | |
2314 | */ | |
2315 | enum zebra_dplane_result dplane_intf_addr_unset(const struct interface *ifp, | |
2316 | const struct connected *ifc) | |
2317 | { | |
64168803 MS |
2318 | return intf_addr_update_internal(ifp, ifc, DPLANE_OP_ADDR_UNINSTALL); |
2319 | } | |
2320 | ||
2321 | static enum zebra_dplane_result intf_addr_update_internal( | |
2322 | const struct interface *ifp, const struct connected *ifc, | |
2323 | enum dplane_op_e op) | |
2324 | { | |
2325 | enum zebra_dplane_result result = ZEBRA_DPLANE_REQUEST_FAILURE; | |
2326 | int ret = EINVAL; | |
2327 | struct zebra_dplane_ctx *ctx = NULL; | |
2328 | struct zebra_ns *zns; | |
2329 | ||
2330 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) { | |
2331 | char addr_str[PREFIX_STRLEN]; | |
2332 | ||
2333 | prefix2str(ifc->address, addr_str, sizeof(addr_str)); | |
2334 | ||
2335 | zlog_debug("init intf ctx %s: idx %d, addr %u:%s", | |
a36898e7 | 2336 | dplane_op2str(op), ifp->ifindex, ifp->vrf_id, |
64168803 MS |
2337 | addr_str); |
2338 | } | |
2339 | ||
2340 | ctx = dplane_ctx_alloc(); | |
64168803 MS |
2341 | |
2342 | ctx->zd_op = op; | |
2343 | ctx->zd_status = ZEBRA_DPLANE_REQUEST_SUCCESS; | |
a36898e7 | 2344 | ctx->zd_vrf_id = ifp->vrf_id; |
64168803 | 2345 | |
a36898e7 | 2346 | zns = zebra_ns_lookup(ifp->vrf_id); |
64168803 MS |
2347 | dplane_ctx_ns_init(ctx, zns, false); |
2348 | ||
2349 | /* Init the interface-addr-specific area */ | |
2350 | memset(&ctx->u.intf, 0, sizeof(ctx->u.intf)); | |
2351 | ||
7c7ef4a8 MS |
2352 | strlcpy(ctx->zd_ifname, ifp->name, sizeof(ctx->zd_ifname)); |
2353 | ctx->zd_ifindex = ifp->ifindex; | |
64168803 MS |
2354 | ctx->u.intf.prefix = *(ifc->address); |
2355 | ||
2356 | if (if_is_broadcast(ifp)) | |
2357 | ctx->u.intf.flags |= DPLANE_INTF_BROADCAST; | |
2358 | ||
2359 | if (CONNECTED_PEER(ifc)) { | |
2360 | ctx->u.intf.dest_prefix = *(ifc->destination); | |
2361 | ctx->u.intf.flags |= | |
2362 | (DPLANE_INTF_CONNECTED | DPLANE_INTF_HAS_DEST); | |
64168803 MS |
2363 | } |
2364 | ||
2365 | if (CHECK_FLAG(ifc->flags, ZEBRA_IFA_SECONDARY)) | |
2366 | ctx->u.intf.flags |= DPLANE_INTF_SECONDARY; | |
2367 | ||
2368 | if (ifc->label) { | |
2369 | size_t len; | |
2370 | ||
2371 | ctx->u.intf.flags |= DPLANE_INTF_HAS_LABEL; | |
2372 | ||
2373 | /* Use embedded buffer if it's adequate; else allocate. */ | |
2374 | len = strlen(ifc->label); | |
2375 | ||
2376 | if (len < sizeof(ctx->u.intf.label_buf)) { | |
b7b7bf31 | 2377 | strlcpy(ctx->u.intf.label_buf, ifc->label, |
64168803 MS |
2378 | sizeof(ctx->u.intf.label_buf)); |
2379 | ctx->u.intf.label = ctx->u.intf.label_buf; | |
2380 | } else { | |
2381 | ctx->u.intf.label = strdup(ifc->label); | |
2382 | } | |
2383 | } | |
2384 | ||
3fe4ccc4 | 2385 | ret = dplane_update_enqueue(ctx); |
64168803 | 2386 | |
64168803 MS |
2387 | /* Increment counter */ |
2388 | atomic_fetch_add_explicit(&zdplane_info.dg_intf_addrs_in, 1, | |
2389 | memory_order_relaxed); | |
2390 | ||
2391 | if (ret == AOK) | |
2392 | result = ZEBRA_DPLANE_REQUEST_QUEUED; | |
2393 | else { | |
2394 | /* Error counter */ | |
2395 | atomic_fetch_add_explicit(&zdplane_info.dg_intf_addr_errors, | |
2396 | 1, memory_order_relaxed); | |
d8e479a3 | 2397 | dplane_ctx_free(&ctx); |
64168803 MS |
2398 | } |
2399 | ||
2400 | return result; | |
a4a4802a MS |
2401 | } |
2402 | ||
7597ac7b MS |
2403 | /* |
2404 | * Enqueue vxlan/evpn mac add (or update). | |
2405 | */ | |
2406 | enum zebra_dplane_result dplane_mac_add(const struct interface *ifp, | |
478566d6 | 2407 | const struct interface *bridge_ifp, |
7597ac7b MS |
2408 | vlanid_t vid, |
2409 | const struct ethaddr *mac, | |
2410 | struct in_addr vtep_ip, | |
2411 | bool sticky) | |
2412 | { | |
2413 | enum zebra_dplane_result result; | |
2414 | ||
2415 | /* Use common helper api */ | |
478566d6 MS |
2416 | result = mac_update_internal(DPLANE_OP_MAC_INSTALL, ifp, bridge_ifp, |
2417 | vid, mac, vtep_ip, sticky); | |
7597ac7b MS |
2418 | return result; |
2419 | } | |
2420 | ||
2421 | /* | |
2422 | * Enqueue vxlan/evpn mac delete. | |
2423 | */ | |
2424 | enum zebra_dplane_result dplane_mac_del(const struct interface *ifp, | |
478566d6 | 2425 | const struct interface *bridge_ifp, |
7597ac7b MS |
2426 | vlanid_t vid, |
2427 | const struct ethaddr *mac, | |
2428 | struct in_addr vtep_ip) | |
2429 | { | |
2430 | enum zebra_dplane_result result; | |
2431 | ||
2432 | /* Use common helper api */ | |
478566d6 MS |
2433 | result = mac_update_internal(DPLANE_OP_MAC_DELETE, ifp, bridge_ifp, |
2434 | vid, mac, vtep_ip, false); | |
7597ac7b MS |
2435 | return result; |
2436 | } | |
2437 | ||
2438 | /* | |
2439 | * Common helper api for MAC address/vxlan updates | |
2440 | */ | |
2441 | static enum zebra_dplane_result | |
2442 | mac_update_internal(enum dplane_op_e op, | |
2443 | const struct interface *ifp, | |
478566d6 | 2444 | const struct interface *br_ifp, |
7597ac7b MS |
2445 | vlanid_t vid, |
2446 | const struct ethaddr *mac, | |
2447 | struct in_addr vtep_ip, | |
2448 | bool sticky) | |
2449 | { | |
2450 | enum zebra_dplane_result result = ZEBRA_DPLANE_REQUEST_FAILURE; | |
2451 | int ret; | |
2452 | struct zebra_dplane_ctx *ctx = NULL; | |
2453 | struct zebra_ns *zns; | |
2454 | ||
036d93c0 MS |
2455 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) { |
2456 | char buf1[ETHER_ADDR_STRLEN], buf2[PREFIX_STRLEN]; | |
2457 | ||
2458 | zlog_debug("init mac ctx %s: mac %s, ifp %s, vtep %s", | |
2459 | dplane_op2str(op), | |
2460 | prefix_mac2str(mac, buf1, sizeof(buf1)), | |
2461 | ifp->name, | |
2462 | inet_ntop(AF_INET, &vtep_ip, buf2, sizeof(buf2))); | |
2463 | } | |
2464 | ||
7597ac7b MS |
2465 | ctx = dplane_ctx_alloc(); |
2466 | ||
2467 | ctx->zd_op = op; | |
2468 | ctx->zd_status = ZEBRA_DPLANE_REQUEST_SUCCESS; | |
2469 | ctx->zd_vrf_id = ifp->vrf_id; | |
2470 | ||
2471 | zns = zebra_ns_lookup(ifp->vrf_id); | |
2472 | dplane_ctx_ns_init(ctx, zns, false); | |
2473 | ||
2474 | strlcpy(ctx->zd_ifname, ifp->name, sizeof(ctx->zd_ifname)); | |
2475 | ctx->zd_ifindex = ifp->ifindex; | |
2476 | ||
2477 | /* Init the mac-specific data area */ | |
2478 | memset(&ctx->u.macinfo, 0, sizeof(ctx->u.macinfo)); | |
2479 | ||
478566d6 | 2480 | ctx->u.macinfo.br_ifindex = br_ifp->ifindex; |
7597ac7b MS |
2481 | ctx->u.macinfo.vtep_ip = vtep_ip; |
2482 | ctx->u.macinfo.mac = *mac; | |
2483 | ctx->u.macinfo.vid = vid; | |
2484 | ctx->u.macinfo.is_sticky = sticky; | |
2485 | ||
2486 | /* Enqueue for processing on the dplane pthread */ | |
2487 | ret = dplane_update_enqueue(ctx); | |
2488 | ||
2489 | /* Increment counter */ | |
2490 | atomic_fetch_add_explicit(&zdplane_info.dg_macs_in, 1, | |
2491 | memory_order_relaxed); | |
2492 | ||
2493 | if (ret == AOK) | |
2494 | result = ZEBRA_DPLANE_REQUEST_QUEUED; | |
2495 | else { | |
2496 | /* Error counter */ | |
2497 | atomic_fetch_add_explicit(&zdplane_info.dg_mac_errors, 1, | |
2498 | memory_order_relaxed); | |
2499 | dplane_ctx_free(&ctx); | |
2500 | } | |
2501 | ||
2502 | return result; | |
2503 | } | |
2504 | ||
931fa60c MS |
2505 | /* |
2506 | * Enqueue evpn neighbor add for the dataplane. | |
2507 | */ | |
2508 | enum zebra_dplane_result dplane_neigh_add(const struct interface *ifp, | |
2509 | const struct ipaddr *ip, | |
2510 | const struct ethaddr *mac, | |
2511 | uint32_t flags) | |
2512 | { | |
2513 | enum zebra_dplane_result result = ZEBRA_DPLANE_REQUEST_FAILURE; | |
2514 | ||
2515 | result = neigh_update_internal(DPLANE_OP_NEIGH_INSTALL, | |
4dd9d11c | 2516 | ifp, mac, ip, flags, DPLANE_NUD_NOARP); |
931fa60c MS |
2517 | |
2518 | return result; | |
2519 | } | |
2520 | ||
2521 | /* | |
2522 | * Enqueue evpn neighbor update for the dataplane. | |
2523 | */ | |
2524 | enum zebra_dplane_result dplane_neigh_update(const struct interface *ifp, | |
2525 | const struct ipaddr *ip, | |
2526 | const struct ethaddr *mac) | |
2527 | { | |
0bbd4ff4 | 2528 | enum zebra_dplane_result result; |
931fa60c MS |
2529 | |
2530 | result = neigh_update_internal(DPLANE_OP_NEIGH_UPDATE, | |
2531 | ifp, mac, ip, 0, DPLANE_NUD_PROBE); | |
2532 | ||
2533 | return result; | |
2534 | } | |
2535 | ||
2536 | /* | |
2537 | * Enqueue evpn neighbor delete for the dataplane. | |
2538 | */ | |
2539 | enum zebra_dplane_result dplane_neigh_delete(const struct interface *ifp, | |
2540 | const struct ipaddr *ip) | |
2541 | { | |
0bbd4ff4 | 2542 | enum zebra_dplane_result result; |
931fa60c MS |
2543 | |
2544 | result = neigh_update_internal(DPLANE_OP_NEIGH_DELETE, | |
2545 | ifp, NULL, ip, 0, 0); | |
2546 | ||
2547 | return result; | |
2548 | } | |
2549 | ||
0bbd4ff4 MS |
2550 | /* |
2551 | * Enqueue evpn VTEP add for the dataplane. | |
2552 | */ | |
2553 | enum zebra_dplane_result dplane_vtep_add(const struct interface *ifp, | |
2554 | const struct in_addr *ip, | |
2555 | vni_t vni) | |
2556 | { | |
2557 | enum zebra_dplane_result result; | |
2558 | struct ethaddr mac = { {0, 0, 0, 0, 0, 0} }; | |
2559 | struct ipaddr addr; | |
2560 | ||
2561 | if (IS_ZEBRA_DEBUG_VXLAN) | |
2562 | zlog_debug("Install %s into flood list for VNI %u intf %s(%u)", | |
2563 | inet_ntoa(*ip), vni, ifp->name, ifp->ifindex); | |
2564 | ||
2565 | SET_IPADDR_V4(&addr); | |
2566 | addr.ipaddr_v4 = *ip; | |
2567 | ||
2568 | result = neigh_update_internal(DPLANE_OP_VTEP_ADD, | |
2569 | ifp, &mac, &addr, 0, 0); | |
2570 | ||
2571 | return result; | |
2572 | } | |
2573 | ||
2574 | /* | |
2575 | * Enqueue evpn VTEP add for the dataplane. | |
2576 | */ | |
2577 | enum zebra_dplane_result dplane_vtep_delete(const struct interface *ifp, | |
2578 | const struct in_addr *ip, | |
2579 | vni_t vni) | |
2580 | { | |
2581 | enum zebra_dplane_result result; | |
2582 | struct ethaddr mac = { {0, 0, 0, 0, 0, 0} }; | |
2583 | struct ipaddr addr; | |
2584 | ||
2585 | if (IS_ZEBRA_DEBUG_VXLAN) | |
2586 | zlog_debug( | |
2587 | "Uninstall %s from flood list for VNI %u intf %s(%u)", | |
2588 | inet_ntoa(*ip), vni, ifp->name, ifp->ifindex); | |
2589 | ||
2590 | SET_IPADDR_V4(&addr); | |
2591 | addr.ipaddr_v4 = *ip; | |
2592 | ||
2593 | result = neigh_update_internal(DPLANE_OP_VTEP_DELETE, | |
2594 | ifp, &mac, &addr, 0, 0); | |
2595 | ||
2596 | return result; | |
2597 | } | |
2598 | ||
931fa60c MS |
2599 | /* |
2600 | * Common helper api for evpn neighbor updates | |
2601 | */ | |
2602 | static enum zebra_dplane_result | |
2603 | neigh_update_internal(enum dplane_op_e op, | |
2604 | const struct interface *ifp, | |
2605 | const struct ethaddr *mac, | |
2606 | const struct ipaddr *ip, | |
2607 | uint32_t flags, uint16_t state) | |
2608 | { | |
2609 | enum zebra_dplane_result result = ZEBRA_DPLANE_REQUEST_FAILURE; | |
2610 | int ret; | |
2611 | struct zebra_dplane_ctx *ctx = NULL; | |
2612 | struct zebra_ns *zns; | |
2613 | ||
2614 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) { | |
2615 | char buf1[ETHER_ADDR_STRLEN], buf2[PREFIX_STRLEN]; | |
2616 | ||
2617 | zlog_debug("init neigh ctx %s: ifp %s, mac %s, ip %s", | |
2618 | dplane_op2str(op), | |
2619 | prefix_mac2str(mac, buf1, sizeof(buf1)), | |
2620 | ifp->name, | |
2621 | ipaddr2str(ip, buf2, sizeof(buf2))); | |
2622 | } | |
2623 | ||
2624 | ctx = dplane_ctx_alloc(); | |
2625 | ||
2626 | ctx->zd_op = op; | |
2627 | ctx->zd_status = ZEBRA_DPLANE_REQUEST_SUCCESS; | |
2628 | ctx->zd_vrf_id = ifp->vrf_id; | |
2629 | ||
2630 | zns = zebra_ns_lookup(ifp->vrf_id); | |
2631 | dplane_ctx_ns_init(ctx, zns, false); | |
2632 | ||
2633 | strlcpy(ctx->zd_ifname, ifp->name, sizeof(ctx->zd_ifname)); | |
2634 | ctx->zd_ifindex = ifp->ifindex; | |
2635 | ||
2636 | /* Init the neighbor-specific data area */ | |
2637 | memset(&ctx->u.neigh, 0, sizeof(ctx->u.neigh)); | |
2638 | ||
2639 | ctx->u.neigh.ip_addr = *ip; | |
2640 | if (mac) | |
2641 | ctx->u.neigh.mac = *mac; | |
2642 | ctx->u.neigh.flags = flags; | |
2643 | ctx->u.neigh.state = state; | |
2644 | ||
2645 | /* Enqueue for processing on the dplane pthread */ | |
2646 | ret = dplane_update_enqueue(ctx); | |
2647 | ||
2648 | /* Increment counter */ | |
2649 | atomic_fetch_add_explicit(&zdplane_info.dg_neighs_in, 1, | |
2650 | memory_order_relaxed); | |
2651 | ||
2652 | if (ret == AOK) | |
2653 | result = ZEBRA_DPLANE_REQUEST_QUEUED; | |
2654 | else { | |
2655 | /* Error counter */ | |
2656 | atomic_fetch_add_explicit(&zdplane_info.dg_neigh_errors, 1, | |
2657 | memory_order_relaxed); | |
2658 | dplane_ctx_free(&ctx); | |
2659 | } | |
2660 | ||
2661 | return result; | |
2662 | } | |
2663 | ||
1d11b21f MS |
2664 | /* |
2665 | * Handler for 'show dplane' | |
2666 | */ | |
2667 | int dplane_show_helper(struct vty *vty, bool detailed) | |
2668 | { | |
16c628de MS |
2669 | uint64_t queued, queue_max, limit, errs, incoming, yields, |
2670 | other_errs; | |
1d11b21f | 2671 | |
4dfd7a02 | 2672 | /* Using atomics because counters are being changed in different |
c831033f | 2673 | * pthread contexts. |
4dfd7a02 | 2674 | */ |
25779064 | 2675 | incoming = atomic_load_explicit(&zdplane_info.dg_routes_in, |
1d11b21f | 2676 | memory_order_relaxed); |
91f16812 MS |
2677 | limit = atomic_load_explicit(&zdplane_info.dg_max_queued_updates, |
2678 | memory_order_relaxed); | |
25779064 | 2679 | queued = atomic_load_explicit(&zdplane_info.dg_routes_queued, |
1d11b21f | 2680 | memory_order_relaxed); |
25779064 | 2681 | queue_max = atomic_load_explicit(&zdplane_info.dg_routes_queued_max, |
4dfd7a02 | 2682 | memory_order_relaxed); |
25779064 | 2683 | errs = atomic_load_explicit(&zdplane_info.dg_route_errors, |
1d11b21f | 2684 | memory_order_relaxed); |
c831033f MS |
2685 | yields = atomic_load_explicit(&zdplane_info.dg_update_yields, |
2686 | memory_order_relaxed); | |
16c628de MS |
2687 | other_errs = atomic_load_explicit(&zdplane_info.dg_other_errors, |
2688 | memory_order_relaxed); | |
1d11b21f | 2689 | |
c831033f MS |
2690 | vty_out(vty, "Zebra dataplane:\nRoute updates: %"PRIu64"\n", |
2691 | incoming); | |
1d11b21f | 2692 | vty_out(vty, "Route update errors: %"PRIu64"\n", errs); |
16c628de | 2693 | vty_out(vty, "Other errors : %"PRIu64"\n", other_errs); |
91f16812 | 2694 | vty_out(vty, "Route update queue limit: %"PRIu64"\n", limit); |
1d11b21f | 2695 | vty_out(vty, "Route update queue depth: %"PRIu64"\n", queued); |
4dfd7a02 | 2696 | vty_out(vty, "Route update queue max: %"PRIu64"\n", queue_max); |
4280d91c MS |
2697 | vty_out(vty, "Dplane update yields: %"PRIu64"\n", yields); |
2698 | ||
2699 | incoming = atomic_load_explicit(&zdplane_info.dg_lsps_in, | |
2700 | memory_order_relaxed); | |
2701 | errs = atomic_load_explicit(&zdplane_info.dg_lsp_errors, | |
2702 | memory_order_relaxed); | |
2703 | vty_out(vty, "LSP updates: %"PRIu64"\n", incoming); | |
2704 | vty_out(vty, "LSP update errors: %"PRIu64"\n", errs); | |
2705 | ||
2706 | incoming = atomic_load_explicit(&zdplane_info.dg_pws_in, | |
2707 | memory_order_relaxed); | |
2708 | errs = atomic_load_explicit(&zdplane_info.dg_pw_errors, | |
2709 | memory_order_relaxed); | |
2710 | vty_out(vty, "PW updates: %"PRIu64"\n", incoming); | |
2711 | vty_out(vty, "PW update errors: %"PRIu64"\n", errs); | |
2712 | ||
2713 | incoming = atomic_load_explicit(&zdplane_info.dg_intf_addrs_in, | |
2714 | memory_order_relaxed); | |
2715 | errs = atomic_load_explicit(&zdplane_info.dg_intf_addr_errors, | |
2716 | memory_order_relaxed); | |
2717 | vty_out(vty, "Intf addr updates: %"PRIu64"\n", incoming); | |
2718 | vty_out(vty, "Intf addr errors: %"PRIu64"\n", errs); | |
2719 | ||
2720 | incoming = atomic_load_explicit(&zdplane_info.dg_macs_in, | |
2721 | memory_order_relaxed); | |
2722 | errs = atomic_load_explicit(&zdplane_info.dg_mac_errors, | |
2723 | memory_order_relaxed); | |
2724 | vty_out(vty, "EVPN MAC updates: %"PRIu64"\n", incoming); | |
2725 | vty_out(vty, "EVPN MAC errors: %"PRIu64"\n", errs); | |
1d11b21f | 2726 | |
931fa60c MS |
2727 | incoming = atomic_load_explicit(&zdplane_info.dg_neighs_in, |
2728 | memory_order_relaxed); | |
2729 | errs = atomic_load_explicit(&zdplane_info.dg_neigh_errors, | |
2730 | memory_order_relaxed); | |
2731 | vty_out(vty, "EVPN neigh updates: %"PRIu64"\n", incoming); | |
2732 | vty_out(vty, "EVPN neigh errors: %"PRIu64"\n", errs); | |
2733 | ||
1d11b21f MS |
2734 | return CMD_SUCCESS; |
2735 | } | |
2736 | ||
2737 | /* | |
2738 | * Handler for 'show dplane providers' | |
2739 | */ | |
2740 | int dplane_show_provs_helper(struct vty *vty, bool detailed) | |
2741 | { | |
c831033f MS |
2742 | struct zebra_dplane_provider *prov; |
2743 | uint64_t in, in_max, out, out_max; | |
2744 | ||
2745 | vty_out(vty, "Zebra dataplane providers:\n"); | |
2746 | ||
2747 | DPLANE_LOCK(); | |
2748 | prov = TAILQ_FIRST(&zdplane_info.dg_providers_q); | |
2749 | DPLANE_UNLOCK(); | |
2750 | ||
2751 | /* Show counters, useful info from each registered provider */ | |
2752 | while (prov) { | |
2753 | ||
2754 | in = atomic_load_explicit(&prov->dp_in_counter, | |
2755 | memory_order_relaxed); | |
2756 | in_max = atomic_load_explicit(&prov->dp_in_max, | |
2757 | memory_order_relaxed); | |
2758 | out = atomic_load_explicit(&prov->dp_out_counter, | |
2759 | memory_order_relaxed); | |
2760 | out_max = atomic_load_explicit(&prov->dp_out_max, | |
2761 | memory_order_relaxed); | |
2762 | ||
c9d17fe8 MS |
2763 | vty_out(vty, "%s (%u): in: %"PRIu64", q_max: %"PRIu64", " |
2764 | "out: %"PRIu64", q_max: %"PRIu64"\n", | |
c831033f MS |
2765 | prov->dp_name, prov->dp_id, in, in_max, out, out_max); |
2766 | ||
2767 | DPLANE_LOCK(); | |
2768 | prov = TAILQ_NEXT(prov, dp_prov_link); | |
2769 | DPLANE_UNLOCK(); | |
2770 | } | |
1d11b21f MS |
2771 | |
2772 | return CMD_SUCCESS; | |
2773 | } | |
2774 | ||
f26730e1 MS |
2775 | /* |
2776 | * Helper for 'show run' etc. | |
2777 | */ | |
2778 | int dplane_config_write_helper(struct vty *vty) | |
2779 | { | |
2780 | if (zdplane_info.dg_max_queued_updates != DPLANE_DEFAULT_MAX_QUEUED) | |
2781 | vty_out(vty, "zebra dplane limit %u\n", | |
2782 | zdplane_info.dg_max_queued_updates); | |
2783 | ||
2784 | return 0; | |
2785 | } | |
2786 | ||
b8e0423d MS |
2787 | /* |
2788 | * Provider registration | |
2789 | */ | |
2790 | int dplane_provider_register(const char *name, | |
c831033f MS |
2791 | enum dplane_provider_prio prio, |
2792 | int flags, | |
1dd4ea8a | 2793 | int (*start_fp)(struct zebra_dplane_provider *), |
4c206c8f MS |
2794 | int (*fp)(struct zebra_dplane_provider *), |
2795 | int (*fini_fp)(struct zebra_dplane_provider *, | |
2796 | bool early), | |
1ff8a248 MS |
2797 | void *data, |
2798 | struct zebra_dplane_provider **prov_p) | |
b8e0423d MS |
2799 | { |
2800 | int ret = 0; | |
6fb51ccb | 2801 | struct zebra_dplane_provider *p = NULL, *last; |
b8e0423d MS |
2802 | |
2803 | /* Validate */ | |
2804 | if (fp == NULL) { | |
2805 | ret = EINVAL; | |
2806 | goto done; | |
2807 | } | |
2808 | ||
2809 | if (prio <= DPLANE_PRIO_NONE || | |
1bcea841 | 2810 | prio > DPLANE_PRIO_LAST) { |
b8e0423d MS |
2811 | ret = EINVAL; |
2812 | goto done; | |
2813 | } | |
2814 | ||
2815 | /* Allocate and init new provider struct */ | |
25779064 | 2816 | p = XCALLOC(MTYPE_DP_PROV, sizeof(struct zebra_dplane_provider)); |
b8e0423d | 2817 | |
c831033f MS |
2818 | pthread_mutex_init(&(p->dp_mutex), NULL); |
2819 | TAILQ_INIT(&(p->dp_ctx_in_q)); | |
2820 | TAILQ_INIT(&(p->dp_ctx_out_q)); | |
b8e0423d | 2821 | |
932dbb4d | 2822 | p->dp_flags = flags; |
b8e0423d MS |
2823 | p->dp_priority = prio; |
2824 | p->dp_fp = fp; | |
1dd4ea8a | 2825 | p->dp_start = start_fp; |
18c37974 | 2826 | p->dp_fini = fini_fp; |
c831033f | 2827 | p->dp_data = data; |
18c37974 | 2828 | |
c831033f | 2829 | /* Lock - the dplane pthread may be running */ |
18c37974 | 2830 | DPLANE_LOCK(); |
b8e0423d | 2831 | |
25779064 | 2832 | p->dp_id = ++zdplane_info.dg_provider_id; |
b8e0423d | 2833 | |
c831033f MS |
2834 | if (name) |
2835 | strlcpy(p->dp_name, name, DPLANE_PROVIDER_NAMELEN); | |
2836 | else | |
2837 | snprintf(p->dp_name, DPLANE_PROVIDER_NAMELEN, | |
2838 | "provider-%u", p->dp_id); | |
2839 | ||
b8e0423d | 2840 | /* Insert into list ordered by priority */ |
c831033f | 2841 | TAILQ_FOREACH(last, &zdplane_info.dg_providers_q, dp_prov_link) { |
5709131c | 2842 | if (last->dp_priority > p->dp_priority) |
b8e0423d | 2843 | break; |
b8e0423d MS |
2844 | } |
2845 | ||
5709131c | 2846 | if (last) |
c831033f | 2847 | TAILQ_INSERT_BEFORE(last, p, dp_prov_link); |
5709131c | 2848 | else |
25779064 | 2849 | TAILQ_INSERT_TAIL(&zdplane_info.dg_providers_q, p, |
c831033f | 2850 | dp_prov_link); |
b8e0423d | 2851 | |
18c37974 MS |
2852 | /* And unlock */ |
2853 | DPLANE_UNLOCK(); | |
2854 | ||
c831033f MS |
2855 | if (IS_ZEBRA_DEBUG_DPLANE) |
2856 | zlog_debug("dplane: registered new provider '%s' (%u), prio %d", | |
2857 | p->dp_name, p->dp_id, p->dp_priority); | |
2858 | ||
b8e0423d | 2859 | done: |
1ff8a248 MS |
2860 | if (prov_p) |
2861 | *prov_p = p; | |
2862 | ||
5709131c | 2863 | return ret; |
b8e0423d MS |
2864 | } |
2865 | ||
c831033f MS |
2866 | /* Accessors for provider attributes */ |
2867 | const char *dplane_provider_get_name(const struct zebra_dplane_provider *prov) | |
2868 | { | |
2869 | return prov->dp_name; | |
2870 | } | |
2871 | ||
2872 | uint32_t dplane_provider_get_id(const struct zebra_dplane_provider *prov) | |
2873 | { | |
2874 | return prov->dp_id; | |
2875 | } | |
2876 | ||
2877 | void *dplane_provider_get_data(const struct zebra_dplane_provider *prov) | |
2878 | { | |
2879 | return prov->dp_data; | |
2880 | } | |
2881 | ||
2882 | int dplane_provider_get_work_limit(const struct zebra_dplane_provider *prov) | |
2883 | { | |
2884 | return zdplane_info.dg_updates_per_cycle; | |
2885 | } | |
2886 | ||
ad6aad4d MS |
2887 | /* Lock/unlock a provider's mutex - iff the provider was registered with |
2888 | * the THREADED flag. | |
2889 | */ | |
2890 | void dplane_provider_lock(struct zebra_dplane_provider *prov) | |
2891 | { | |
2892 | if (dplane_provider_is_threaded(prov)) | |
2893 | DPLANE_PROV_LOCK(prov); | |
2894 | } | |
2895 | ||
2896 | void dplane_provider_unlock(struct zebra_dplane_provider *prov) | |
2897 | { | |
2898 | if (dplane_provider_is_threaded(prov)) | |
2899 | DPLANE_PROV_UNLOCK(prov); | |
2900 | } | |
2901 | ||
c831033f MS |
2902 | /* |
2903 | * Dequeue and maintain associated counter | |
2904 | */ | |
2905 | struct zebra_dplane_ctx *dplane_provider_dequeue_in_ctx( | |
2906 | struct zebra_dplane_provider *prov) | |
2907 | { | |
2908 | struct zebra_dplane_ctx *ctx = NULL; | |
2909 | ||
ad6aad4d | 2910 | dplane_provider_lock(prov); |
c831033f MS |
2911 | |
2912 | ctx = TAILQ_FIRST(&(prov->dp_ctx_in_q)); | |
2913 | if (ctx) { | |
2914 | TAILQ_REMOVE(&(prov->dp_ctx_in_q), ctx, zd_q_entries); | |
c9d17fe8 MS |
2915 | |
2916 | atomic_fetch_sub_explicit(&prov->dp_in_queued, 1, | |
2917 | memory_order_relaxed); | |
c831033f MS |
2918 | } |
2919 | ||
ad6aad4d | 2920 | dplane_provider_unlock(prov); |
c831033f MS |
2921 | |
2922 | return ctx; | |
2923 | } | |
2924 | ||
2925 | /* | |
2926 | * Dequeue work to a list, return count | |
2927 | */ | |
2928 | int dplane_provider_dequeue_in_list(struct zebra_dplane_provider *prov, | |
2929 | struct dplane_ctx_q *listp) | |
2930 | { | |
2931 | int limit, ret; | |
2932 | struct zebra_dplane_ctx *ctx; | |
2933 | ||
2934 | limit = zdplane_info.dg_updates_per_cycle; | |
2935 | ||
ad6aad4d | 2936 | dplane_provider_lock(prov); |
c831033f MS |
2937 | |
2938 | for (ret = 0; ret < limit; ret++) { | |
2939 | ctx = TAILQ_FIRST(&(prov->dp_ctx_in_q)); | |
2940 | if (ctx) { | |
2941 | TAILQ_REMOVE(&(prov->dp_ctx_in_q), ctx, zd_q_entries); | |
2942 | ||
2943 | TAILQ_INSERT_TAIL(listp, ctx, zd_q_entries); | |
2944 | } else { | |
2945 | break; | |
2946 | } | |
2947 | } | |
2948 | ||
c9d17fe8 MS |
2949 | if (ret > 0) |
2950 | atomic_fetch_sub_explicit(&prov->dp_in_queued, ret, | |
2951 | memory_order_relaxed); | |
2952 | ||
ad6aad4d | 2953 | dplane_provider_unlock(prov); |
c831033f MS |
2954 | |
2955 | return ret; | |
2956 | } | |
2957 | ||
2958 | /* | |
2959 | * Enqueue and maintain associated counter | |
2960 | */ | |
2961 | void dplane_provider_enqueue_out_ctx(struct zebra_dplane_provider *prov, | |
2962 | struct zebra_dplane_ctx *ctx) | |
2963 | { | |
ad6aad4d | 2964 | dplane_provider_lock(prov); |
c831033f MS |
2965 | |
2966 | TAILQ_INSERT_TAIL(&(prov->dp_ctx_out_q), ctx, | |
2967 | zd_q_entries); | |
2968 | ||
ad6aad4d | 2969 | dplane_provider_unlock(prov); |
c831033f MS |
2970 | |
2971 | atomic_fetch_add_explicit(&(prov->dp_out_counter), 1, | |
2972 | memory_order_relaxed); | |
2973 | } | |
2974 | ||
62b8bb7a MS |
2975 | /* |
2976 | * Accessor for provider object | |
2977 | */ | |
c831033f MS |
2978 | bool dplane_provider_is_threaded(const struct zebra_dplane_provider *prov) |
2979 | { | |
2980 | return (prov->dp_flags & DPLANE_PROV_FLAG_THREADED); | |
2981 | } | |
2982 | ||
62b8bb7a MS |
2983 | /* |
2984 | * Internal helper that copies information from a zebra ns object; this is | |
2985 | * called in the zebra main pthread context as part of dplane ctx init. | |
2986 | */ | |
2987 | static void dplane_info_from_zns(struct zebra_dplane_info *ns_info, | |
2988 | struct zebra_ns *zns) | |
2989 | { | |
2990 | ns_info->ns_id = zns->ns_id; | |
2991 | ||
2992 | #if defined(HAVE_NETLINK) | |
2993 | ns_info->is_cmd = true; | |
2994 | ns_info->nls = zns->netlink_dplane; | |
2995 | #endif /* NETLINK */ | |
2996 | } | |
2997 | ||
c831033f MS |
2998 | /* |
2999 | * Provider api to signal that work/events are available | |
3000 | * for the dataplane pthread. | |
3001 | */ | |
3002 | int dplane_provider_work_ready(void) | |
3003 | { | |
e5a60d82 MS |
3004 | /* Note that during zebra startup, we may be offered work before |
3005 | * the dataplane pthread (and thread-master) are ready. We want to | |
3006 | * enqueue the work, but the event-scheduling machinery may not be | |
3007 | * available. | |
3008 | */ | |
3009 | if (zdplane_info.dg_run) { | |
3010 | thread_add_event(zdplane_info.dg_master, | |
3011 | dplane_thread_loop, NULL, 0, | |
3012 | &zdplane_info.dg_t_update); | |
3013 | } | |
c831033f MS |
3014 | |
3015 | return AOK; | |
3016 | } | |
3017 | ||
593e4eb1 MS |
3018 | /* |
3019 | * Enqueue a context directly to zebra main. | |
3020 | */ | |
3021 | void dplane_provider_enqueue_to_zebra(struct zebra_dplane_ctx *ctx) | |
3022 | { | |
3023 | struct dplane_ctx_q temp_list; | |
3024 | ||
3025 | /* Zebra's api takes a list, so we need to use a temporary list */ | |
3026 | TAILQ_INIT(&temp_list); | |
3027 | ||
3028 | TAILQ_INSERT_TAIL(&temp_list, ctx, zd_q_entries); | |
3029 | (zdplane_info.dg_results_cb)(&temp_list); | |
3030 | } | |
3031 | ||
7cdb1a84 | 3032 | /* |
c831033f | 3033 | * Kernel dataplane provider |
7cdb1a84 | 3034 | */ |
c831033f | 3035 | |
16c628de MS |
3036 | /* |
3037 | * Handler for kernel LSP updates | |
3038 | */ | |
3039 | static enum zebra_dplane_result | |
3040 | kernel_dplane_lsp_update(struct zebra_dplane_ctx *ctx) | |
3041 | { | |
3042 | enum zebra_dplane_result res; | |
3043 | ||
3044 | /* Call into the synchronous kernel-facing code here */ | |
3045 | res = kernel_lsp_update(ctx); | |
3046 | ||
3047 | if (res != ZEBRA_DPLANE_REQUEST_SUCCESS) | |
3048 | atomic_fetch_add_explicit( | |
3049 | &zdplane_info.dg_lsp_errors, 1, | |
3050 | memory_order_relaxed); | |
3051 | ||
3052 | return res; | |
3053 | } | |
3054 | ||
c10a646d MS |
3055 | /* |
3056 | * Handler for kernel pseudowire updates | |
3057 | */ | |
3058 | static enum zebra_dplane_result | |
3059 | kernel_dplane_pw_update(struct zebra_dplane_ctx *ctx) | |
3060 | { | |
3061 | enum zebra_dplane_result res; | |
3062 | ||
3063 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) | |
3064 | zlog_debug("Dplane pw %s: op %s af %d loc: %u rem: %u", | |
7c7ef4a8 | 3065 | dplane_ctx_get_ifname(ctx), |
c10a646d MS |
3066 | dplane_op2str(ctx->zd_op), |
3067 | dplane_ctx_get_pw_af(ctx), | |
3068 | dplane_ctx_get_pw_local_label(ctx), | |
3069 | dplane_ctx_get_pw_remote_label(ctx)); | |
3070 | ||
3071 | res = kernel_pw_update(ctx); | |
3072 | ||
3073 | if (res != ZEBRA_DPLANE_REQUEST_SUCCESS) | |
3074 | atomic_fetch_add_explicit( | |
3075 | &zdplane_info.dg_pw_errors, 1, | |
3076 | memory_order_relaxed); | |
3077 | ||
3078 | return res; | |
3079 | } | |
3080 | ||
16c628de MS |
3081 | /* |
3082 | * Handler for kernel route updates | |
3083 | */ | |
3084 | static enum zebra_dplane_result | |
3085 | kernel_dplane_route_update(struct zebra_dplane_ctx *ctx) | |
3086 | { | |
3087 | enum zebra_dplane_result res; | |
3088 | ||
3089 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) { | |
3090 | char dest_str[PREFIX_STRLEN]; | |
3091 | ||
3092 | prefix2str(dplane_ctx_get_dest(ctx), | |
3093 | dest_str, sizeof(dest_str)); | |
3094 | ||
3095 | zlog_debug("%u:%s Dplane route update ctx %p op %s", | |
3096 | dplane_ctx_get_vrf(ctx), dest_str, | |
3097 | ctx, dplane_op2str(dplane_ctx_get_op(ctx))); | |
3098 | } | |
3099 | ||
3100 | /* Call into the synchronous kernel-facing code here */ | |
3101 | res = kernel_route_update(ctx); | |
3102 | ||
3103 | if (res != ZEBRA_DPLANE_REQUEST_SUCCESS) | |
3104 | atomic_fetch_add_explicit( | |
3105 | &zdplane_info.dg_route_errors, 1, | |
3106 | memory_order_relaxed); | |
3107 | ||
3108 | return res; | |
3109 | } | |
3110 | ||
64168803 MS |
3111 | /* |
3112 | * Handler for kernel-facing interface address updates | |
3113 | */ | |
3114 | static enum zebra_dplane_result | |
3115 | kernel_dplane_address_update(struct zebra_dplane_ctx *ctx) | |
3116 | { | |
3117 | enum zebra_dplane_result res; | |
3118 | ||
64168803 MS |
3119 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) { |
3120 | char dest_str[PREFIX_STRLEN]; | |
3121 | ||
3122 | prefix2str(dplane_ctx_get_intf_addr(ctx), dest_str, | |
3123 | sizeof(dest_str)); | |
3124 | ||
3125 | zlog_debug("Dplane intf %s, idx %u, addr %s", | |
3126 | dplane_op2str(dplane_ctx_get_op(ctx)), | |
3127 | dplane_ctx_get_ifindex(ctx), dest_str); | |
3128 | } | |
3129 | ||
3130 | res = kernel_address_update_ctx(ctx); | |
3131 | ||
3132 | if (res != ZEBRA_DPLANE_REQUEST_SUCCESS) | |
3133 | atomic_fetch_add_explicit(&zdplane_info.dg_intf_addr_errors, | |
3134 | 1, memory_order_relaxed); | |
3135 | ||
3136 | return res; | |
3137 | } | |
3138 | ||
f820d025 SW |
3139 | /** |
3140 | * kernel_dplane_nexthop_update() - Handler for kernel nexthop updates | |
3141 | * | |
3142 | * @ctx: Dataplane context | |
3143 | * | |
3144 | * Return: Dataplane result flag | |
3145 | */ | |
3146 | static enum zebra_dplane_result | |
3147 | kernel_dplane_nexthop_update(struct zebra_dplane_ctx *ctx) | |
3148 | { | |
3149 | enum zebra_dplane_result res; | |
3150 | ||
3151 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) { | |
3152 | zlog_debug("ID (%u) Dplane nexthop update ctx %p op %s", | |
0c8215cb | 3153 | dplane_ctx_get_nhe_id(ctx), ctx, |
f820d025 SW |
3154 | dplane_op2str(dplane_ctx_get_op(ctx))); |
3155 | } | |
3156 | ||
3157 | res = kernel_nexthop_update(ctx); | |
3158 | ||
3159 | if (res != ZEBRA_DPLANE_REQUEST_SUCCESS) | |
3160 | atomic_fetch_add_explicit(&zdplane_info.dg_nexthop_errors, 1, | |
3161 | memory_order_relaxed); | |
3162 | ||
3163 | return res; | |
3164 | } | |
3165 | ||
036d93c0 | 3166 | /* |
931fa60c | 3167 | * Handler for kernel-facing EVPN MAC address updates |
036d93c0 MS |
3168 | */ |
3169 | static enum zebra_dplane_result | |
3170 | kernel_dplane_mac_update(struct zebra_dplane_ctx *ctx) | |
3171 | { | |
3172 | enum zebra_dplane_result res; | |
3173 | ||
3174 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) { | |
3175 | char buf[ETHER_ADDR_STRLEN]; | |
3176 | ||
3177 | prefix_mac2str(dplane_ctx_mac_get_addr(ctx), buf, | |
3178 | sizeof(buf)); | |
3179 | ||
3180 | zlog_debug("Dplane %s, mac %s, ifindex %u", | |
3181 | dplane_op2str(dplane_ctx_get_op(ctx)), | |
3182 | buf, dplane_ctx_get_ifindex(ctx)); | |
3183 | } | |
3184 | ||
3185 | res = kernel_mac_update_ctx(ctx); | |
3186 | ||
3187 | if (res != ZEBRA_DPLANE_REQUEST_SUCCESS) | |
3188 | atomic_fetch_add_explicit(&zdplane_info.dg_mac_errors, | |
3189 | 1, memory_order_relaxed); | |
3190 | ||
3191 | return res; | |
3192 | } | |
3193 | ||
931fa60c MS |
3194 | /* |
3195 | * Handler for kernel-facing EVPN neighbor updates | |
3196 | */ | |
3197 | static enum zebra_dplane_result | |
3198 | kernel_dplane_neigh_update(struct zebra_dplane_ctx *ctx) | |
3199 | { | |
3200 | enum zebra_dplane_result res; | |
3201 | ||
3202 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) { | |
3203 | char buf[PREFIX_STRLEN]; | |
3204 | ||
3205 | ipaddr2str(dplane_ctx_neigh_get_ipaddr(ctx), buf, | |
3206 | sizeof(buf)); | |
3207 | ||
3208 | zlog_debug("Dplane %s, ip %s, ifindex %u", | |
3209 | dplane_op2str(dplane_ctx_get_op(ctx)), | |
3210 | buf, dplane_ctx_get_ifindex(ctx)); | |
3211 | } | |
3212 | ||
3213 | res = kernel_neigh_update_ctx(ctx); | |
3214 | ||
3215 | if (res != ZEBRA_DPLANE_REQUEST_SUCCESS) | |
3216 | atomic_fetch_add_explicit(&zdplane_info.dg_neigh_errors, | |
3217 | 1, memory_order_relaxed); | |
3218 | ||
3219 | return res; | |
3220 | } | |
3221 | ||
c831033f MS |
3222 | /* |
3223 | * Kernel provider callback | |
3224 | */ | |
3225 | static int kernel_dplane_process_func(struct zebra_dplane_provider *prov) | |
7cdb1a84 | 3226 | { |
c831033f MS |
3227 | enum zebra_dplane_result res; |
3228 | struct zebra_dplane_ctx *ctx; | |
3229 | int counter, limit; | |
7cdb1a84 | 3230 | |
c831033f | 3231 | limit = dplane_provider_get_work_limit(prov); |
7cdb1a84 | 3232 | |
c831033f MS |
3233 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) |
3234 | zlog_debug("dplane provider '%s': processing", | |
3235 | dplane_provider_get_name(prov)); | |
7cdb1a84 | 3236 | |
c831033f | 3237 | for (counter = 0; counter < limit; counter++) { |
91f16812 | 3238 | |
c831033f MS |
3239 | ctx = dplane_provider_dequeue_in_ctx(prov); |
3240 | if (ctx == NULL) | |
3241 | break; | |
d8c16a95 | 3242 | |
9677961e MS |
3243 | /* A previous provider plugin may have asked to skip the |
3244 | * kernel update. | |
3245 | */ | |
3246 | if (dplane_ctx_is_skip_kernel(ctx)) { | |
3247 | res = ZEBRA_DPLANE_REQUEST_SUCCESS; | |
3248 | goto skip_one; | |
3249 | } | |
3250 | ||
16c628de MS |
3251 | /* Dispatch to appropriate kernel-facing apis */ |
3252 | switch (dplane_ctx_get_op(ctx)) { | |
1d11b21f | 3253 | |
16c628de MS |
3254 | case DPLANE_OP_ROUTE_INSTALL: |
3255 | case DPLANE_OP_ROUTE_UPDATE: | |
3256 | case DPLANE_OP_ROUTE_DELETE: | |
3257 | res = kernel_dplane_route_update(ctx); | |
3258 | break; | |
d8c16a95 | 3259 | |
f820d025 SW |
3260 | case DPLANE_OP_NH_INSTALL: |
3261 | case DPLANE_OP_NH_UPDATE: | |
3262 | case DPLANE_OP_NH_DELETE: | |
3263 | res = kernel_dplane_nexthop_update(ctx); | |
3264 | break; | |
3265 | ||
16c628de MS |
3266 | case DPLANE_OP_LSP_INSTALL: |
3267 | case DPLANE_OP_LSP_UPDATE: | |
3268 | case DPLANE_OP_LSP_DELETE: | |
3269 | res = kernel_dplane_lsp_update(ctx); | |
3270 | break; | |
d8c16a95 | 3271 | |
c10a646d MS |
3272 | case DPLANE_OP_PW_INSTALL: |
3273 | case DPLANE_OP_PW_UNINSTALL: | |
3274 | res = kernel_dplane_pw_update(ctx); | |
3275 | break; | |
3276 | ||
64168803 MS |
3277 | case DPLANE_OP_ADDR_INSTALL: |
3278 | case DPLANE_OP_ADDR_UNINSTALL: | |
3279 | res = kernel_dplane_address_update(ctx); | |
3280 | break; | |
3281 | ||
036d93c0 MS |
3282 | case DPLANE_OP_MAC_INSTALL: |
3283 | case DPLANE_OP_MAC_DELETE: | |
3284 | res = kernel_dplane_mac_update(ctx); | |
3285 | break; | |
3286 | ||
931fa60c MS |
3287 | case DPLANE_OP_NEIGH_INSTALL: |
3288 | case DPLANE_OP_NEIGH_UPDATE: | |
3289 | case DPLANE_OP_NEIGH_DELETE: | |
0bbd4ff4 MS |
3290 | case DPLANE_OP_VTEP_ADD: |
3291 | case DPLANE_OP_VTEP_DELETE: | |
931fa60c MS |
3292 | res = kernel_dplane_neigh_update(ctx); |
3293 | break; | |
3294 | ||
104e3ad9 | 3295 | /* Ignore 'notifications' - no-op */ |
cf363e1b MS |
3296 | case DPLANE_OP_SYS_ROUTE_ADD: |
3297 | case DPLANE_OP_SYS_ROUTE_DELETE: | |
54818e3b | 3298 | case DPLANE_OP_ROUTE_NOTIFY: |
104e3ad9 | 3299 | case DPLANE_OP_LSP_NOTIFY: |
cf363e1b MS |
3300 | res = ZEBRA_DPLANE_REQUEST_SUCCESS; |
3301 | break; | |
3302 | ||
16c628de | 3303 | default: |
c831033f | 3304 | atomic_fetch_add_explicit( |
16c628de | 3305 | &zdplane_info.dg_other_errors, 1, |
c831033f | 3306 | memory_order_relaxed); |
d8c16a95 | 3307 | |
16c628de MS |
3308 | res = ZEBRA_DPLANE_REQUEST_FAILURE; |
3309 | break; | |
3310 | } | |
3311 | ||
9677961e | 3312 | skip_one: |
c831033f MS |
3313 | dplane_ctx_set_status(ctx, res); |
3314 | ||
3315 | dplane_provider_enqueue_out_ctx(prov, ctx); | |
3316 | } | |
3317 | ||
3318 | /* Ensure that we'll run the work loop again if there's still | |
3319 | * more work to do. | |
3320 | */ | |
3321 | if (counter >= limit) { | |
3322 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) | |
3323 | zlog_debug("dplane provider '%s' reached max updates %d", | |
3324 | dplane_provider_get_name(prov), counter); | |
3325 | ||
3326 | atomic_fetch_add_explicit(&zdplane_info.dg_update_yields, | |
3327 | 1, memory_order_relaxed); | |
3328 | ||
3329 | dplane_provider_work_ready(); | |
3330 | } | |
3331 | ||
3332 | return 0; | |
3333 | } | |
3334 | ||
e5a60d82 MS |
3335 | #if DPLANE_TEST_PROVIDER |
3336 | ||
c831033f MS |
3337 | /* |
3338 | * Test dataplane provider plugin | |
3339 | */ | |
3340 | ||
3341 | /* | |
3342 | * Test provider process callback | |
3343 | */ | |
3344 | static int test_dplane_process_func(struct zebra_dplane_provider *prov) | |
3345 | { | |
3346 | struct zebra_dplane_ctx *ctx; | |
3347 | int counter, limit; | |
3348 | ||
3349 | /* Just moving from 'in' queue to 'out' queue */ | |
3350 | ||
3351 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) | |
3352 | zlog_debug("dplane provider '%s': processing", | |
3353 | dplane_provider_get_name(prov)); | |
3354 | ||
3355 | limit = dplane_provider_get_work_limit(prov); | |
3356 | ||
3357 | for (counter = 0; counter < limit; counter++) { | |
3358 | ||
3359 | ctx = dplane_provider_dequeue_in_ctx(prov); | |
3360 | if (ctx == NULL) | |
3361 | break; | |
3362 | ||
cf363e1b MS |
3363 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) |
3364 | zlog_debug("dplane provider '%s': op %s", | |
3365 | dplane_provider_get_name(prov), | |
3366 | dplane_op2str(dplane_ctx_get_op(ctx))); | |
3367 | ||
c831033f MS |
3368 | dplane_ctx_set_status(ctx, ZEBRA_DPLANE_REQUEST_SUCCESS); |
3369 | ||
3370 | dplane_provider_enqueue_out_ctx(prov, ctx); | |
3371 | } | |
3372 | ||
c9d17fe8 MS |
3373 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) |
3374 | zlog_debug("dplane provider '%s': processed %d", | |
3375 | dplane_provider_get_name(prov), counter); | |
3376 | ||
c831033f MS |
3377 | /* Ensure that we'll run the work loop again if there's still |
3378 | * more work to do. | |
3379 | */ | |
3380 | if (counter >= limit) | |
3381 | dplane_provider_work_ready(); | |
3382 | ||
3383 | return 0; | |
3384 | } | |
3385 | ||
3386 | /* | |
3387 | * Test provider shutdown/fini callback | |
3388 | */ | |
3389 | static int test_dplane_shutdown_func(struct zebra_dplane_provider *prov, | |
3390 | bool early) | |
3391 | { | |
3392 | if (IS_ZEBRA_DEBUG_DPLANE) | |
3393 | zlog_debug("dplane provider '%s': %sshutdown", | |
3394 | dplane_provider_get_name(prov), | |
3395 | early ? "early " : ""); | |
3396 | ||
3397 | return 0; | |
3398 | } | |
e5a60d82 | 3399 | #endif /* DPLANE_TEST_PROVIDER */ |
c831033f MS |
3400 | |
3401 | /* | |
3402 | * Register default kernel provider | |
3403 | */ | |
3404 | static void dplane_provider_init(void) | |
3405 | { | |
3406 | int ret; | |
3407 | ||
3408 | ret = dplane_provider_register("Kernel", | |
3409 | DPLANE_PRIO_KERNEL, | |
1dd4ea8a | 3410 | DPLANE_PROV_FLAGS_DEFAULT, NULL, |
c831033f MS |
3411 | kernel_dplane_process_func, |
3412 | NULL, | |
1ff8a248 | 3413 | NULL, NULL); |
c831033f MS |
3414 | |
3415 | if (ret != AOK) | |
3416 | zlog_err("Unable to register kernel dplane provider: %d", | |
3417 | ret); | |
3418 | ||
e5a60d82 MS |
3419 | #if DPLANE_TEST_PROVIDER |
3420 | /* Optional test provider ... */ | |
c831033f MS |
3421 | ret = dplane_provider_register("Test", |
3422 | DPLANE_PRIO_PRE_KERNEL, | |
1dd4ea8a | 3423 | DPLANE_PROV_FLAGS_DEFAULT, NULL, |
c831033f MS |
3424 | test_dplane_process_func, |
3425 | test_dplane_shutdown_func, | |
1ff8a248 | 3426 | NULL /* data */, NULL); |
c831033f MS |
3427 | |
3428 | if (ret != AOK) | |
3429 | zlog_err("Unable to register test dplane provider: %d", | |
3430 | ret); | |
e5a60d82 | 3431 | #endif /* DPLANE_TEST_PROVIDER */ |
7cdb1a84 MS |
3432 | } |
3433 | ||
4dfd7a02 MS |
3434 | /* Indicates zebra shutdown/exit is in progress. Some operations may be |
3435 | * simplified or skipped during shutdown processing. | |
3436 | */ | |
3437 | bool dplane_is_in_shutdown(void) | |
3438 | { | |
25779064 | 3439 | return zdplane_info.dg_is_shutdown; |
4dfd7a02 MS |
3440 | } |
3441 | ||
3442 | /* | |
3443 | * Early or pre-shutdown, de-init notification api. This runs pretty | |
3444 | * early during zebra shutdown, as a signal to stop new work and prepare | |
3445 | * for updates generated by shutdown/cleanup activity, as zebra tries to | |
3446 | * remove everything it's responsible for. | |
c9d17fe8 | 3447 | * NB: This runs in the main zebra pthread context. |
4dfd7a02 MS |
3448 | */ |
3449 | void zebra_dplane_pre_finish(void) | |
3450 | { | |
3451 | if (IS_ZEBRA_DEBUG_DPLANE) | |
3452 | zlog_debug("Zebra dataplane pre-fini called"); | |
3453 | ||
25779064 | 3454 | zdplane_info.dg_is_shutdown = true; |
4dfd7a02 | 3455 | |
c9d17fe8 | 3456 | /* TODO -- Notify provider(s) of pending shutdown */ |
4dfd7a02 MS |
3457 | } |
3458 | ||
3459 | /* | |
3460 | * Utility to determine whether work remains enqueued within the dplane; | |
3461 | * used during system shutdown processing. | |
3462 | */ | |
3463 | static bool dplane_work_pending(void) | |
3464 | { | |
c9d17fe8 | 3465 | bool ret = false; |
25779064 | 3466 | struct zebra_dplane_ctx *ctx; |
c9d17fe8 | 3467 | struct zebra_dplane_provider *prov; |
4dfd7a02 | 3468 | |
c831033f MS |
3469 | /* TODO -- just checking incoming/pending work for now, must check |
3470 | * providers | |
3471 | */ | |
4dfd7a02 MS |
3472 | DPLANE_LOCK(); |
3473 | { | |
3fe4ccc4 | 3474 | ctx = TAILQ_FIRST(&zdplane_info.dg_update_ctx_q); |
c9d17fe8 | 3475 | prov = TAILQ_FIRST(&zdplane_info.dg_providers_q); |
4dfd7a02 MS |
3476 | } |
3477 | DPLANE_UNLOCK(); | |
3478 | ||
c9d17fe8 MS |
3479 | if (ctx != NULL) { |
3480 | ret = true; | |
3481 | goto done; | |
3482 | } | |
3483 | ||
3484 | while (prov) { | |
3485 | ||
ad6aad4d | 3486 | dplane_provider_lock(prov); |
c9d17fe8 MS |
3487 | |
3488 | ctx = TAILQ_FIRST(&(prov->dp_ctx_in_q)); | |
3489 | if (ctx == NULL) | |
3490 | ctx = TAILQ_FIRST(&(prov->dp_ctx_out_q)); | |
3491 | ||
ad6aad4d | 3492 | dplane_provider_unlock(prov); |
c9d17fe8 MS |
3493 | |
3494 | if (ctx != NULL) | |
3495 | break; | |
3496 | ||
3497 | DPLANE_LOCK(); | |
3498 | prov = TAILQ_NEXT(prov, dp_prov_link); | |
3499 | DPLANE_UNLOCK(); | |
3500 | } | |
3501 | ||
3502 | if (ctx != NULL) | |
3503 | ret = true; | |
3504 | ||
3505 | done: | |
3506 | return ret; | |
4dfd7a02 MS |
3507 | } |
3508 | ||
3509 | /* | |
3510 | * Shutdown-time intermediate callback, used to determine when all pending | |
3511 | * in-flight updates are done. If there's still work to do, reschedules itself. | |
3512 | * If all work is done, schedules an event to the main zebra thread for | |
3513 | * final zebra shutdown. | |
3514 | * This runs in the dplane pthread context. | |
3515 | */ | |
3516 | static int dplane_check_shutdown_status(struct thread *event) | |
3517 | { | |
3518 | if (IS_ZEBRA_DEBUG_DPLANE) | |
3519 | zlog_debug("Zebra dataplane shutdown status check called"); | |
3520 | ||
3521 | if (dplane_work_pending()) { | |
3522 | /* Reschedule dplane check on a short timer */ | |
25779064 | 3523 | thread_add_timer_msec(zdplane_info.dg_master, |
4dfd7a02 MS |
3524 | dplane_check_shutdown_status, |
3525 | NULL, 100, | |
25779064 | 3526 | &zdplane_info.dg_t_shutdown_check); |
4dfd7a02 MS |
3527 | |
3528 | /* TODO - give up and stop waiting after a short time? */ | |
3529 | ||
3530 | } else { | |
3531 | /* We appear to be done - schedule a final callback event | |
3532 | * for the zebra main pthread. | |
3533 | */ | |
3801e764 | 3534 | thread_add_event(zrouter.master, zebra_finalize, NULL, 0, NULL); |
4dfd7a02 MS |
3535 | } |
3536 | ||
3537 | return 0; | |
3538 | } | |
3539 | ||
18c37974 | 3540 | /* |
1d11b21f | 3541 | * Shutdown, de-init api. This runs pretty late during shutdown, |
4dfd7a02 MS |
3542 | * after zebra has tried to free/remove/uninstall all routes during shutdown. |
3543 | * At this point, dplane work may still remain to be done, so we can't just | |
3544 | * blindly terminate. If there's still work to do, we'll periodically check | |
3545 | * and when done, we'll enqueue a task to the zebra main thread for final | |
3546 | * termination processing. | |
3547 | * | |
1d11b21f | 3548 | * NB: This runs in the main zebra thread context. |
18c37974 | 3549 | */ |
1d11b21f | 3550 | void zebra_dplane_finish(void) |
18c37974 | 3551 | { |
4dfd7a02 MS |
3552 | if (IS_ZEBRA_DEBUG_DPLANE) |
3553 | zlog_debug("Zebra dataplane fini called"); | |
3554 | ||
25779064 | 3555 | thread_add_event(zdplane_info.dg_master, |
4dfd7a02 | 3556 | dplane_check_shutdown_status, NULL, 0, |
25779064 | 3557 | &zdplane_info.dg_t_shutdown_check); |
4dfd7a02 MS |
3558 | } |
3559 | ||
c831033f MS |
3560 | /* |
3561 | * Main dataplane pthread event loop. The thread takes new incoming work | |
3562 | * and offers it to the first provider. It then iterates through the | |
3563 | * providers, taking complete work from each one and offering it | |
3564 | * to the next in order. At each step, a limited number of updates are | |
3565 | * processed during a cycle in order to provide some fairness. | |
14b0bc8e MS |
3566 | * |
3567 | * This loop through the providers is only run once, so that the dataplane | |
3568 | * pthread can look for other pending work - such as i/o work on behalf of | |
3569 | * providers. | |
c831033f MS |
3570 | */ |
3571 | static int dplane_thread_loop(struct thread *event) | |
3572 | { | |
3573 | struct dplane_ctx_q work_list; | |
3574 | struct dplane_ctx_q error_list; | |
3575 | struct zebra_dplane_provider *prov; | |
3576 | struct zebra_dplane_ctx *ctx, *tctx; | |
3577 | int limit, counter, error_counter; | |
c9d17fe8 | 3578 | uint64_t curr, high; |
c831033f MS |
3579 | |
3580 | /* Capture work limit per cycle */ | |
3581 | limit = zdplane_info.dg_updates_per_cycle; | |
3582 | ||
14b0bc8e | 3583 | /* Init temporary lists used to move contexts among providers */ |
c831033f | 3584 | TAILQ_INIT(&work_list); |
14b0bc8e MS |
3585 | TAILQ_INIT(&error_list); |
3586 | error_counter = 0; | |
c831033f MS |
3587 | |
3588 | /* Check for zebra shutdown */ | |
3589 | if (!zdplane_info.dg_run) | |
3590 | goto done; | |
3591 | ||
3592 | /* Dequeue some incoming work from zebra (if any) onto the temporary | |
3593 | * working list. | |
3594 | */ | |
3595 | DPLANE_LOCK(); | |
3596 | ||
3597 | /* Locate initial registered provider */ | |
3598 | prov = TAILQ_FIRST(&zdplane_info.dg_providers_q); | |
3599 | ||
14b0bc8e | 3600 | /* Move new work from incoming list to temp list */ |
c831033f | 3601 | for (counter = 0; counter < limit; counter++) { |
3fe4ccc4 | 3602 | ctx = TAILQ_FIRST(&zdplane_info.dg_update_ctx_q); |
c831033f | 3603 | if (ctx) { |
3fe4ccc4 | 3604 | TAILQ_REMOVE(&zdplane_info.dg_update_ctx_q, ctx, |
c831033f MS |
3605 | zd_q_entries); |
3606 | ||
c831033f MS |
3607 | ctx->zd_provider = prov->dp_id; |
3608 | ||
3609 | TAILQ_INSERT_TAIL(&work_list, ctx, zd_q_entries); | |
3610 | } else { | |
3611 | break; | |
3612 | } | |
3613 | } | |
3614 | ||
3615 | DPLANE_UNLOCK(); | |
3616 | ||
14b0bc8e MS |
3617 | atomic_fetch_sub_explicit(&zdplane_info.dg_routes_queued, counter, |
3618 | memory_order_relaxed); | |
3619 | ||
c831033f MS |
3620 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) |
3621 | zlog_debug("dplane: incoming new work counter: %d", counter); | |
3622 | ||
3623 | /* Iterate through the registered providers, offering new incoming | |
3624 | * work. If the provider has outgoing work in its queue, take that | |
3625 | * work for the next provider | |
3626 | */ | |
3627 | while (prov) { | |
3628 | ||
14b0bc8e MS |
3629 | /* At each iteration, the temporary work list has 'counter' |
3630 | * items. | |
3631 | */ | |
c831033f MS |
3632 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) |
3633 | zlog_debug("dplane enqueues %d new work to provider '%s'", | |
3634 | counter, dplane_provider_get_name(prov)); | |
3635 | ||
3636 | /* Capture current provider id in each context; check for | |
3637 | * error status. | |
3638 | */ | |
3639 | TAILQ_FOREACH_SAFE(ctx, &work_list, zd_q_entries, tctx) { | |
3640 | if (dplane_ctx_get_status(ctx) == | |
3641 | ZEBRA_DPLANE_REQUEST_SUCCESS) { | |
3642 | ctx->zd_provider = prov->dp_id; | |
3643 | } else { | |
3644 | /* | |
3645 | * TODO -- improve error-handling: recirc | |
3646 | * errors backwards so that providers can | |
3647 | * 'undo' their work (if they want to) | |
3648 | */ | |
3649 | ||
3650 | /* Move to error list; will be returned | |
3651 | * zebra main. | |
3652 | */ | |
3653 | TAILQ_REMOVE(&work_list, ctx, zd_q_entries); | |
3654 | TAILQ_INSERT_TAIL(&error_list, | |
3655 | ctx, zd_q_entries); | |
3656 | error_counter++; | |
3657 | } | |
3658 | } | |
3659 | ||
3660 | /* Enqueue new work to the provider */ | |
ad6aad4d | 3661 | dplane_provider_lock(prov); |
c831033f MS |
3662 | |
3663 | if (TAILQ_FIRST(&work_list)) | |
3664 | TAILQ_CONCAT(&(prov->dp_ctx_in_q), &work_list, | |
3665 | zd_q_entries); | |
3666 | ||
c9d17fe8 MS |
3667 | atomic_fetch_add_explicit(&prov->dp_in_counter, counter, |
3668 | memory_order_relaxed); | |
3669 | atomic_fetch_add_explicit(&prov->dp_in_queued, counter, | |
3670 | memory_order_relaxed); | |
3671 | curr = atomic_load_explicit(&prov->dp_in_queued, | |
3672 | memory_order_relaxed); | |
3673 | high = atomic_load_explicit(&prov->dp_in_max, | |
3674 | memory_order_relaxed); | |
3675 | if (curr > high) | |
3676 | atomic_store_explicit(&prov->dp_in_max, curr, | |
c831033f MS |
3677 | memory_order_relaxed); |
3678 | ||
ad6aad4d | 3679 | dplane_provider_unlock(prov); |
c831033f | 3680 | |
14b0bc8e MS |
3681 | /* Reset the temp list (though the 'concat' may have done this |
3682 | * already), and the counter | |
3683 | */ | |
c831033f MS |
3684 | TAILQ_INIT(&work_list); |
3685 | counter = 0; | |
3686 | ||
14b0bc8e MS |
3687 | /* Call into the provider code. Note that this is |
3688 | * unconditional: we offer to do work even if we don't enqueue | |
3689 | * any _new_ work. | |
3690 | */ | |
c831033f MS |
3691 | (*prov->dp_fp)(prov); |
3692 | ||
3693 | /* Check for zebra shutdown */ | |
3694 | if (!zdplane_info.dg_run) | |
3695 | break; | |
3696 | ||
3697 | /* Dequeue completed work from the provider */ | |
ad6aad4d | 3698 | dplane_provider_lock(prov); |
c831033f MS |
3699 | |
3700 | while (counter < limit) { | |
3701 | ctx = TAILQ_FIRST(&(prov->dp_ctx_out_q)); | |
3702 | if (ctx) { | |
3703 | TAILQ_REMOVE(&(prov->dp_ctx_out_q), ctx, | |
3704 | zd_q_entries); | |
3705 | ||
3706 | TAILQ_INSERT_TAIL(&work_list, | |
3707 | ctx, zd_q_entries); | |
3708 | counter++; | |
3709 | } else | |
3710 | break; | |
3711 | } | |
3712 | ||
ad6aad4d | 3713 | dplane_provider_unlock(prov); |
c831033f MS |
3714 | |
3715 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) | |
3716 | zlog_debug("dplane dequeues %d completed work from provider %s", | |
3717 | counter, dplane_provider_get_name(prov)); | |
3718 | ||
3719 | /* Locate next provider */ | |
3720 | DPLANE_LOCK(); | |
3721 | prov = TAILQ_NEXT(prov, dp_prov_link); | |
3722 | DPLANE_UNLOCK(); | |
c831033f MS |
3723 | } |
3724 | ||
3725 | /* After all providers have been serviced, enqueue any completed | |
14b0bc8e | 3726 | * work and any errors back to zebra so it can process the results. |
c831033f | 3727 | */ |
c831033f | 3728 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) |
14b0bc8e MS |
3729 | zlog_debug("dplane has %d completed, %d errors, for zebra main", |
3730 | counter, error_counter); | |
c831033f MS |
3731 | |
3732 | /* | |
4c206c8f | 3733 | * Hand lists through the api to zebra main, |
c831033f MS |
3734 | * to reduce the number of lock/unlock cycles |
3735 | */ | |
14b0bc8e | 3736 | |
4c206c8f MS |
3737 | /* Call through to zebra main */ |
3738 | (zdplane_info.dg_results_cb)(&error_list); | |
14b0bc8e | 3739 | |
4c206c8f | 3740 | TAILQ_INIT(&error_list); |
14b0bc8e | 3741 | |
4c206c8f MS |
3742 | /* Call through to zebra main */ |
3743 | (zdplane_info.dg_results_cb)(&work_list); | |
c831033f | 3744 | |
4c206c8f | 3745 | TAILQ_INIT(&work_list); |
c831033f MS |
3746 | |
3747 | done: | |
3748 | return 0; | |
3749 | } | |
3750 | ||
4dfd7a02 MS |
3751 | /* |
3752 | * Final phase of shutdown, after all work enqueued to dplane has been | |
3753 | * processed. This is called from the zebra main pthread context. | |
3754 | */ | |
3755 | void zebra_dplane_shutdown(void) | |
3756 | { | |
3757 | if (IS_ZEBRA_DEBUG_DPLANE) | |
3758 | zlog_debug("Zebra dataplane shutdown called"); | |
1d11b21f MS |
3759 | |
3760 | /* Stop dplane thread, if it's running */ | |
3761 | ||
25779064 | 3762 | zdplane_info.dg_run = false; |
1d11b21f | 3763 | |
9344d3fc SW |
3764 | if (zdplane_info.dg_t_update) |
3765 | thread_cancel_async(zdplane_info.dg_t_update->master, | |
3766 | &zdplane_info.dg_t_update, NULL); | |
1d11b21f | 3767 | |
d8c16a95 MS |
3768 | frr_pthread_stop(zdplane_info.dg_pthread, NULL); |
3769 | ||
3770 | /* Destroy pthread */ | |
3771 | frr_pthread_destroy(zdplane_info.dg_pthread); | |
3772 | zdplane_info.dg_pthread = NULL; | |
3773 | zdplane_info.dg_master = NULL; | |
4dfd7a02 | 3774 | |
c831033f MS |
3775 | /* TODO -- Notify provider(s) of final shutdown */ |
3776 | ||
3777 | /* TODO -- Clean-up provider objects */ | |
3778 | ||
3779 | /* TODO -- Clean queue(s), free memory */ | |
3780 | } | |
3781 | ||
3782 | /* | |
3783 | * Initialize the dataplane module during startup, internal/private version | |
3784 | */ | |
2561d12e | 3785 | static void zebra_dplane_init_internal(void) |
c831033f MS |
3786 | { |
3787 | memset(&zdplane_info, 0, sizeof(zdplane_info)); | |
3788 | ||
3789 | pthread_mutex_init(&zdplane_info.dg_mutex, NULL); | |
1d11b21f | 3790 | |
3fe4ccc4 | 3791 | TAILQ_INIT(&zdplane_info.dg_update_ctx_q); |
c831033f | 3792 | TAILQ_INIT(&zdplane_info.dg_providers_q); |
1d11b21f | 3793 | |
c831033f MS |
3794 | zdplane_info.dg_updates_per_cycle = DPLANE_DEFAULT_NEW_WORK; |
3795 | ||
3796 | zdplane_info.dg_max_queued_updates = DPLANE_DEFAULT_MAX_QUEUED; | |
3797 | ||
3798 | /* Register default kernel 'provider' during init */ | |
3799 | dplane_provider_init(); | |
e5a60d82 | 3800 | } |
c831033f | 3801 | |
e5a60d82 MS |
3802 | /* |
3803 | * Start the dataplane pthread. This step needs to be run later than the | |
3804 | * 'init' step, in case zebra has fork-ed. | |
3805 | */ | |
3806 | void zebra_dplane_start(void) | |
3807 | { | |
1dd4ea8a | 3808 | struct zebra_dplane_provider *prov; |
c831033f MS |
3809 | struct frr_pthread_attr pattr = { |
3810 | .start = frr_pthread_attr_default.start, | |
3811 | .stop = frr_pthread_attr_default.stop | |
3812 | }; | |
3813 | ||
1dd4ea8a MS |
3814 | /* Start dataplane pthread */ |
3815 | ||
c831033f | 3816 | zdplane_info.dg_pthread = frr_pthread_new(&pattr, "Zebra dplane thread", |
0eca319c | 3817 | "zebra_dplane"); |
c831033f MS |
3818 | |
3819 | zdplane_info.dg_master = zdplane_info.dg_pthread->master; | |
3820 | ||
e5a60d82 MS |
3821 | zdplane_info.dg_run = true; |
3822 | ||
c831033f MS |
3823 | /* Enqueue an initial event for the dataplane pthread */ |
3824 | thread_add_event(zdplane_info.dg_master, dplane_thread_loop, NULL, 0, | |
3825 | &zdplane_info.dg_t_update); | |
3826 | ||
1dd4ea8a MS |
3827 | /* Call start callbacks for registered providers */ |
3828 | ||
3829 | DPLANE_LOCK(); | |
3830 | prov = TAILQ_FIRST(&zdplane_info.dg_providers_q); | |
3831 | DPLANE_UNLOCK(); | |
3832 | ||
3833 | while (prov) { | |
3834 | ||
3835 | if (prov->dp_start) | |
3836 | (prov->dp_start)(prov); | |
3837 | ||
3838 | /* Locate next provider */ | |
3839 | DPLANE_LOCK(); | |
3840 | prov = TAILQ_NEXT(prov, dp_prov_link); | |
3841 | DPLANE_UNLOCK(); | |
3842 | } | |
3843 | ||
c831033f | 3844 | frr_pthread_run(zdplane_info.dg_pthread, NULL); |
18c37974 MS |
3845 | } |
3846 | ||
7cdb1a84 | 3847 | /* |
b8e0423d | 3848 | * Initialize the dataplane module at startup; called by zebra rib_init() |
7cdb1a84 | 3849 | */ |
4c206c8f | 3850 | void zebra_dplane_init(int (*results_fp)(struct dplane_ctx_q *)) |
7cdb1a84 | 3851 | { |
2561d12e | 3852 | zebra_dplane_init_internal(); |
4c206c8f | 3853 | zdplane_info.dg_results_cb = results_fp; |
7cdb1a84 | 3854 | } |