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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 | 34 | #include "zebra/zebra_dplane.h" |
f2a0ba3a | 35 | #include "zebra/zebra_vxlan_private.h" |
7cdb1a84 MS |
36 | #include "zebra/rt.h" |
37 | #include "zebra/debug.h" | |
38 | ||
39 | /* Memory type for context blocks */ | |
c1344b54 DL |
40 | DEFINE_MTYPE_STATIC(ZEBRA, DP_CTX, "Zebra DPlane Ctx") |
41 | DEFINE_MTYPE_STATIC(ZEBRA, DP_PROV, "Zebra DPlane Provider") | |
7cdb1a84 MS |
42 | |
43 | #ifndef AOK | |
44 | # define AOK 0 | |
45 | #endif | |
46 | ||
e5a60d82 MS |
47 | /* Enable test dataplane provider */ |
48 | /*#define DPLANE_TEST_PROVIDER 1 */ | |
49 | ||
91f16812 MS |
50 | /* Default value for max queued incoming updates */ |
51 | const uint32_t DPLANE_DEFAULT_MAX_QUEUED = 200; | |
52 | ||
c831033f MS |
53 | /* Default value for new work per cycle */ |
54 | const uint32_t DPLANE_DEFAULT_NEW_WORK = 100; | |
55 | ||
7cdb1a84 MS |
56 | /* Validation check macro for context blocks */ |
57 | /* #define DPLANE_DEBUG 1 */ | |
58 | ||
59 | #ifdef DPLANE_DEBUG | |
60 | ||
25779064 MS |
61 | # define DPLANE_CTX_VALID(p) \ |
62 | assert((p) != NULL) | |
7cdb1a84 MS |
63 | |
64 | #else | |
65 | ||
5709131c | 66 | # define DPLANE_CTX_VALID(p) |
7cdb1a84 MS |
67 | |
68 | #endif /* DPLANE_DEBUG */ | |
69 | ||
0c8215cb SW |
70 | /* |
71 | * Nexthop information captured for nexthop/nexthop group updates | |
72 | */ | |
73 | struct dplane_nexthop_info { | |
74 | uint32_t id; | |
75 | afi_t afi; | |
76 | vrf_id_t vrf_id; | |
38e40db1 | 77 | int type; |
0c8215cb SW |
78 | |
79 | struct nexthop_group ng; | |
e22e8001 SW |
80 | struct nh_grp nh_grp[MULTIPATH_NUM]; |
81 | uint8_t nh_grp_count; | |
0c8215cb SW |
82 | }; |
83 | ||
7cdb1a84 | 84 | /* |
0f461727 | 85 | * Route information captured for route updates. |
7cdb1a84 | 86 | */ |
0f461727 | 87 | struct dplane_route_info { |
7cdb1a84 MS |
88 | |
89 | /* Dest and (optional) source prefixes */ | |
90 | struct prefix zd_dest; | |
91 | struct prefix zd_src; | |
92 | ||
0f461727 MS |
93 | afi_t zd_afi; |
94 | safi_t zd_safi; | |
7cdb1a84 MS |
95 | |
96 | int zd_type; | |
97 | int zd_old_type; | |
98 | ||
7cdb1a84 MS |
99 | route_tag_t zd_tag; |
100 | route_tag_t zd_old_tag; | |
101 | uint32_t zd_metric; | |
01ce7cba | 102 | uint32_t zd_old_metric; |
0f461727 | 103 | |
7cdb1a84 MS |
104 | uint16_t zd_instance; |
105 | uint16_t zd_old_instance; | |
106 | ||
107 | uint8_t zd_distance; | |
108 | uint8_t zd_old_distance; | |
109 | ||
110 | uint32_t zd_mtu; | |
111 | uint32_t zd_nexthop_mtu; | |
112 | ||
0c8215cb SW |
113 | /* Nexthop hash entry info */ |
114 | struct dplane_nexthop_info nhe; | |
f820d025 | 115 | |
7cdb1a84 | 116 | /* Nexthops */ |
1d48702e | 117 | uint32_t zd_nhg_id; |
7cdb1a84 MS |
118 | struct nexthop_group zd_ng; |
119 | ||
1d48702e MS |
120 | /* Backup nexthops (if present) */ |
121 | struct nexthop_group backup_ng; | |
122 | ||
4dfd7a02 | 123 | /* "Previous" nexthops, used only in route updates without netlink */ |
01ce7cba | 124 | struct nexthop_group zd_old_ng; |
1d48702e | 125 | struct nexthop_group old_backup_ng; |
01ce7cba | 126 | |
b8e0423d MS |
127 | /* TODO -- use fixed array of nexthops, to avoid mallocs? */ |
128 | ||
0f461727 MS |
129 | }; |
130 | ||
d613b8e1 MS |
131 | /* |
132 | * Pseudowire info for the dataplane | |
133 | */ | |
134 | struct dplane_pw_info { | |
d613b8e1 MS |
135 | int type; |
136 | int af; | |
137 | int status; | |
138 | uint32_t flags; | |
16d69787 | 139 | union g_addr dest; |
d613b8e1 MS |
140 | mpls_label_t local_label; |
141 | mpls_label_t remote_label; | |
142 | ||
16d69787 MS |
143 | /* Nexthops */ |
144 | struct nexthop_group nhg; | |
145 | ||
d613b8e1 MS |
146 | union pw_protocol_fields fields; |
147 | }; | |
148 | ||
a4a4802a MS |
149 | /* |
150 | * Interface/prefix info for the dataplane | |
151 | */ | |
152 | struct dplane_intf_info { | |
153 | ||
a4a4802a MS |
154 | uint32_t metric; |
155 | uint32_t flags; | |
156 | ||
157 | #define DPLANE_INTF_CONNECTED (1 << 0) /* Connected peer, p2p */ | |
158 | #define DPLANE_INTF_SECONDARY (1 << 1) | |
64168803 | 159 | #define DPLANE_INTF_BROADCAST (1 << 2) |
0f3af738 | 160 | #define DPLANE_INTF_HAS_DEST DPLANE_INTF_CONNECTED |
64168803 | 161 | #define DPLANE_INTF_HAS_LABEL (1 << 4) |
a4a4802a MS |
162 | |
163 | /* Interface address/prefix */ | |
164 | struct prefix prefix; | |
165 | ||
166 | /* Dest address, for p2p, or broadcast prefix */ | |
167 | struct prefix dest_prefix; | |
168 | ||
169 | char *label; | |
170 | char label_buf[32]; | |
171 | }; | |
172 | ||
7597ac7b | 173 | /* |
0bbd4ff4 | 174 | * EVPN MAC address info for the dataplane. |
7597ac7b MS |
175 | */ |
176 | struct dplane_mac_info { | |
177 | vlanid_t vid; | |
478566d6 | 178 | ifindex_t br_ifindex; |
7597ac7b MS |
179 | struct ethaddr mac; |
180 | struct in_addr vtep_ip; | |
181 | bool is_sticky; | |
7597ac7b MS |
182 | }; |
183 | ||
931fa60c MS |
184 | /* |
185 | * EVPN neighbor info for the dataplane | |
186 | */ | |
187 | struct dplane_neigh_info { | |
188 | struct ipaddr ip_addr; | |
189 | struct ethaddr mac; | |
190 | uint32_t flags; | |
191 | uint16_t state; | |
192 | }; | |
193 | ||
0f461727 MS |
194 | /* |
195 | * The context block used to exchange info about route updates across | |
196 | * the boundary between the zebra main context (and pthread) and the | |
197 | * dataplane layer (and pthread). | |
198 | */ | |
199 | struct zebra_dplane_ctx { | |
200 | ||
201 | /* Operation code */ | |
202 | enum dplane_op_e zd_op; | |
203 | ||
204 | /* Status on return */ | |
205 | enum zebra_dplane_result zd_status; | |
206 | ||
207 | /* Dplane provider id */ | |
208 | uint32_t zd_provider; | |
209 | ||
210 | /* Flags - used by providers, e.g. */ | |
211 | int zd_flags; | |
212 | ||
213 | bool zd_is_update; | |
214 | ||
215 | uint32_t zd_seq; | |
216 | uint32_t zd_old_seq; | |
217 | ||
0024a559 MS |
218 | /* Some updates may be generated by notifications: allow the |
219 | * plugin to notice and ignore results from its own notifications. | |
220 | */ | |
221 | uint32_t zd_notif_provider; | |
222 | ||
0f461727 MS |
223 | /* TODO -- internal/sub-operation status? */ |
224 | enum zebra_dplane_result zd_remote_status; | |
225 | enum zebra_dplane_result zd_kernel_status; | |
226 | ||
227 | vrf_id_t zd_vrf_id; | |
228 | uint32_t zd_table_id; | |
229 | ||
7c7ef4a8 MS |
230 | char zd_ifname[INTERFACE_NAMSIZ]; |
231 | ifindex_t zd_ifindex; | |
232 | ||
a4a4802a | 233 | /* Support info for different kinds of updates */ |
0f461727 MS |
234 | union { |
235 | struct dplane_route_info rinfo; | |
236 | zebra_lsp_t lsp; | |
d613b8e1 | 237 | struct dplane_pw_info pw; |
a4a4802a | 238 | struct dplane_intf_info intf; |
7597ac7b | 239 | struct dplane_mac_info macinfo; |
931fa60c | 240 | struct dplane_neigh_info neigh; |
0f461727 MS |
241 | } u; |
242 | ||
243 | /* Namespace info, used especially for netlink kernel communication */ | |
244 | struct zebra_dplane_info zd_ns_info; | |
245 | ||
7cdb1a84 | 246 | /* Embedded list linkage */ |
25779064 | 247 | TAILQ_ENTRY(zebra_dplane_ctx) zd_q_entries; |
7cdb1a84 MS |
248 | }; |
249 | ||
c831033f MS |
250 | /* Flag that can be set by a pre-kernel provider as a signal that an update |
251 | * should bypass the kernel. | |
252 | */ | |
253 | #define DPLANE_CTX_FLAG_NO_KERNEL 0x01 | |
254 | ||
255 | ||
7cdb1a84 MS |
256 | /* |
257 | * Registration block for one dataplane provider. | |
258 | */ | |
25779064 | 259 | struct zebra_dplane_provider { |
7cdb1a84 MS |
260 | /* Name */ |
261 | char dp_name[DPLANE_PROVIDER_NAMELEN + 1]; | |
262 | ||
263 | /* Priority, for ordering among providers */ | |
264 | uint8_t dp_priority; | |
265 | ||
266 | /* Id value */ | |
267 | uint32_t dp_id; | |
268 | ||
c831033f MS |
269 | /* Mutex */ |
270 | pthread_mutex_t dp_mutex; | |
271 | ||
272 | /* Plugin-provided extra data */ | |
273 | void *dp_data; | |
274 | ||
275 | /* Flags */ | |
276 | int dp_flags; | |
277 | ||
1dd4ea8a MS |
278 | int (*dp_start)(struct zebra_dplane_provider *prov); |
279 | ||
4c206c8f | 280 | int (*dp_fp)(struct zebra_dplane_provider *prov); |
7cdb1a84 | 281 | |
4c206c8f | 282 | int (*dp_fini)(struct zebra_dplane_provider *prov, bool early_p); |
18c37974 | 283 | |
0545c373 | 284 | _Atomic uint32_t dp_in_counter; |
c9d17fe8 | 285 | _Atomic uint32_t dp_in_queued; |
c831033f MS |
286 | _Atomic uint32_t dp_in_max; |
287 | _Atomic uint32_t dp_out_counter; | |
c9d17fe8 | 288 | _Atomic uint32_t dp_out_queued; |
c831033f | 289 | _Atomic uint32_t dp_out_max; |
0545c373 | 290 | _Atomic uint32_t dp_error_counter; |
1d11b21f | 291 | |
c831033f MS |
292 | /* Queue of contexts inbound to the provider */ |
293 | struct dplane_ctx_q dp_ctx_in_q; | |
294 | ||
295 | /* Queue of completed contexts outbound from the provider back | |
296 | * towards the dataplane module. | |
297 | */ | |
298 | struct dplane_ctx_q dp_ctx_out_q; | |
7cdb1a84 | 299 | |
c831033f MS |
300 | /* Embedded list linkage for provider objects */ |
301 | TAILQ_ENTRY(zebra_dplane_provider) dp_prov_link; | |
7cdb1a84 MS |
302 | }; |
303 | ||
304 | /* | |
305 | * Globals | |
306 | */ | |
25779064 | 307 | static struct zebra_dplane_globals { |
7cdb1a84 MS |
308 | /* Mutex to control access to dataplane components */ |
309 | pthread_mutex_t dg_mutex; | |
310 | ||
311 | /* Results callback registered by zebra 'core' */ | |
4c206c8f | 312 | int (*dg_results_cb)(struct dplane_ctx_q *ctxlist); |
7cdb1a84 | 313 | |
4dfd7a02 MS |
314 | /* Sentinel for beginning of shutdown */ |
315 | volatile bool dg_is_shutdown; | |
316 | ||
317 | /* Sentinel for end of shutdown */ | |
1d11b21f MS |
318 | volatile bool dg_run; |
319 | ||
3fe4ccc4 MS |
320 | /* Update context queue inbound to the dataplane */ |
321 | TAILQ_HEAD(zdg_ctx_q, zebra_dplane_ctx) dg_update_ctx_q; | |
7cdb1a84 MS |
322 | |
323 | /* Ordered list of providers */ | |
25779064 | 324 | TAILQ_HEAD(zdg_prov_q, zebra_dplane_provider) dg_providers_q; |
7cdb1a84 | 325 | |
1d11b21f | 326 | /* Counter used to assign internal ids to providers */ |
b8e0423d MS |
327 | uint32_t dg_provider_id; |
328 | ||
91f16812 MS |
329 | /* Limit number of pending, unprocessed updates */ |
330 | _Atomic uint32_t dg_max_queued_updates; | |
331 | ||
cf363e1b MS |
332 | /* Control whether system route notifications should be produced. */ |
333 | bool dg_sys_route_notifs; | |
334 | ||
c831033f MS |
335 | /* Limit number of new updates dequeued at once, to pace an |
336 | * incoming burst. | |
337 | */ | |
338 | uint32_t dg_updates_per_cycle; | |
339 | ||
0545c373 | 340 | _Atomic uint32_t dg_routes_in; |
1d11b21f | 341 | _Atomic uint32_t dg_routes_queued; |
4dfd7a02 | 342 | _Atomic uint32_t dg_routes_queued_max; |
0545c373 | 343 | _Atomic uint32_t dg_route_errors; |
16c628de MS |
344 | _Atomic uint32_t dg_other_errors; |
345 | ||
f820d025 SW |
346 | _Atomic uint32_t dg_nexthops_in; |
347 | _Atomic uint32_t dg_nexthop_errors; | |
348 | ||
16c628de | 349 | _Atomic uint32_t dg_lsps_in; |
16c628de MS |
350 | _Atomic uint32_t dg_lsp_errors; |
351 | ||
97d8d05a MS |
352 | _Atomic uint32_t dg_pws_in; |
353 | _Atomic uint32_t dg_pw_errors; | |
354 | ||
64168803 MS |
355 | _Atomic uint32_t dg_intf_addrs_in; |
356 | _Atomic uint32_t dg_intf_addr_errors; | |
357 | ||
7597ac7b MS |
358 | _Atomic uint32_t dg_macs_in; |
359 | _Atomic uint32_t dg_mac_errors; | |
360 | ||
931fa60c MS |
361 | _Atomic uint32_t dg_neighs_in; |
362 | _Atomic uint32_t dg_neigh_errors; | |
363 | ||
c831033f | 364 | _Atomic uint32_t dg_update_yields; |
1d11b21f | 365 | |
d8c16a95 MS |
366 | /* Dataplane pthread */ |
367 | struct frr_pthread *dg_pthread; | |
368 | ||
7cdb1a84 MS |
369 | /* Event-delivery context 'master' for the dplane */ |
370 | struct thread_master *dg_master; | |
371 | ||
372 | /* Event/'thread' pointer for queued updates */ | |
373 | struct thread *dg_t_update; | |
374 | ||
4dfd7a02 MS |
375 | /* Event pointer for pending shutdown check loop */ |
376 | struct thread *dg_t_shutdown_check; | |
377 | ||
25779064 | 378 | } zdplane_info; |
7cdb1a84 MS |
379 | |
380 | /* | |
c831033f | 381 | * Lock and unlock for interactions with the zebra 'core' pthread |
7cdb1a84 | 382 | */ |
25779064 | 383 | #define DPLANE_LOCK() pthread_mutex_lock(&zdplane_info.dg_mutex) |
25779064 | 384 | #define DPLANE_UNLOCK() pthread_mutex_unlock(&zdplane_info.dg_mutex) |
7cdb1a84 | 385 | |
c831033f MS |
386 | |
387 | /* | |
388 | * Lock and unlock for individual providers | |
389 | */ | |
390 | #define DPLANE_PROV_LOCK(p) pthread_mutex_lock(&((p)->dp_mutex)) | |
391 | #define DPLANE_PROV_UNLOCK(p) pthread_mutex_unlock(&((p)->dp_mutex)) | |
392 | ||
7cdb1a84 | 393 | /* Prototypes */ |
c831033f | 394 | static int dplane_thread_loop(struct thread *event); |
62b8bb7a MS |
395 | static void dplane_info_from_zns(struct zebra_dplane_info *ns_info, |
396 | struct zebra_ns *zns); | |
16c628de MS |
397 | static enum zebra_dplane_result lsp_update_internal(zebra_lsp_t *lsp, |
398 | enum dplane_op_e op); | |
97d8d05a MS |
399 | static enum zebra_dplane_result pw_update_internal(struct zebra_pw *pw, |
400 | enum dplane_op_e op); | |
64168803 MS |
401 | static enum zebra_dplane_result intf_addr_update_internal( |
402 | const struct interface *ifp, const struct connected *ifc, | |
403 | enum dplane_op_e op); | |
f73a8467 | 404 | static enum zebra_dplane_result mac_update_common( |
7597ac7b | 405 | enum dplane_op_e op, const struct interface *ifp, |
478566d6 | 406 | const struct interface *br_ifp, |
7597ac7b MS |
407 | vlanid_t vid, const struct ethaddr *mac, |
408 | struct in_addr vtep_ip, bool sticky); | |
931fa60c MS |
409 | static enum zebra_dplane_result neigh_update_internal( |
410 | enum dplane_op_e op, | |
411 | const struct interface *ifp, | |
412 | const struct ethaddr *mac, | |
413 | const struct ipaddr *ip, | |
414 | uint32_t flags, uint16_t state); | |
7cdb1a84 MS |
415 | |
416 | /* | |
417 | * Public APIs | |
418 | */ | |
419 | ||
ad6aad4d MS |
420 | /* Obtain thread_master for dataplane thread */ |
421 | struct thread_master *dplane_get_thread_master(void) | |
422 | { | |
423 | return zdplane_info.dg_master; | |
424 | } | |
425 | ||
7cdb1a84 | 426 | /* |
b8e0423d | 427 | * Allocate a dataplane update context |
7cdb1a84 | 428 | */ |
593e4eb1 | 429 | struct zebra_dplane_ctx *dplane_ctx_alloc(void) |
7cdb1a84 | 430 | { |
25779064 | 431 | struct zebra_dplane_ctx *p; |
7cdb1a84 | 432 | |
b8e0423d MS |
433 | /* TODO -- just alloc'ing memory, but would like to maintain |
434 | * a pool | |
435 | */ | |
25779064 | 436 | p = XCALLOC(MTYPE_DP_CTX, sizeof(struct zebra_dplane_ctx)); |
7cdb1a84 | 437 | |
5709131c | 438 | return p; |
7cdb1a84 MS |
439 | } |
440 | ||
cf363e1b MS |
441 | /* Enable system route notifications */ |
442 | void dplane_enable_sys_route_notifs(void) | |
443 | { | |
444 | zdplane_info.dg_sys_route_notifs = true; | |
445 | } | |
446 | ||
7cdb1a84 | 447 | /* |
f73a8467 | 448 | * Clean up dependent/internal allocations inside a context object |
7cdb1a84 | 449 | */ |
f73a8467 | 450 | static void dplane_ctx_free_internal(struct zebra_dplane_ctx *ctx) |
7cdb1a84 | 451 | { |
f73a8467 MS |
452 | /* |
453 | * Some internal allocations may need to be freed, depending on | |
16c628de MS |
454 | * the type of info captured in the ctx. |
455 | */ | |
f73a8467 | 456 | switch (ctx->zd_op) { |
16c628de MS |
457 | case DPLANE_OP_ROUTE_INSTALL: |
458 | case DPLANE_OP_ROUTE_UPDATE: | |
459 | case DPLANE_OP_ROUTE_DELETE: | |
cf363e1b MS |
460 | case DPLANE_OP_SYS_ROUTE_ADD: |
461 | case DPLANE_OP_SYS_ROUTE_DELETE: | |
54818e3b | 462 | case DPLANE_OP_ROUTE_NOTIFY: |
b8e0423d | 463 | |
16c628de | 464 | /* Free allocated nexthops */ |
f73a8467 | 465 | if (ctx->u.rinfo.zd_ng.nexthop) { |
7cdb1a84 | 466 | /* This deals with recursive nexthops too */ |
f73a8467 | 467 | nexthops_free(ctx->u.rinfo.zd_ng.nexthop); |
16c628de | 468 | |
f73a8467 | 469 | ctx->u.rinfo.zd_ng.nexthop = NULL; |
7cdb1a84 MS |
470 | } |
471 | ||
1d48702e | 472 | /* Free backup info also (if present) */ |
f73a8467 | 473 | if (ctx->u.rinfo.backup_ng.nexthop) { |
1d48702e | 474 | /* This deals with recursive nexthops too */ |
f73a8467 | 475 | nexthops_free(ctx->u.rinfo.backup_ng.nexthop); |
1d48702e | 476 | |
f73a8467 | 477 | ctx->u.rinfo.backup_ng.nexthop = NULL; |
1d48702e MS |
478 | } |
479 | ||
f73a8467 | 480 | if (ctx->u.rinfo.zd_old_ng.nexthop) { |
4dfd7a02 | 481 | /* This deals with recursive nexthops too */ |
f73a8467 | 482 | nexthops_free(ctx->u.rinfo.zd_old_ng.nexthop); |
16c628de | 483 | |
f73a8467 | 484 | ctx->u.rinfo.zd_old_ng.nexthop = NULL; |
16c628de MS |
485 | } |
486 | ||
f73a8467 | 487 | if (ctx->u.rinfo.old_backup_ng.nexthop) { |
1d48702e | 488 | /* This deals with recursive nexthops too */ |
f73a8467 | 489 | nexthops_free(ctx->u.rinfo.old_backup_ng.nexthop); |
1d48702e | 490 | |
f73a8467 | 491 | ctx->u.rinfo.old_backup_ng.nexthop = NULL; |
1d48702e MS |
492 | } |
493 | ||
16c628de MS |
494 | break; |
495 | ||
f820d025 SW |
496 | case DPLANE_OP_NH_INSTALL: |
497 | case DPLANE_OP_NH_UPDATE: | |
498 | case DPLANE_OP_NH_DELETE: { | |
f73a8467 | 499 | if (ctx->u.rinfo.nhe.ng.nexthop) { |
0c8215cb | 500 | /* This deals with recursive nexthops too */ |
f73a8467 | 501 | nexthops_free(ctx->u.rinfo.nhe.ng.nexthop); |
0c8215cb | 502 | |
f73a8467 | 503 | ctx->u.rinfo.nhe.ng.nexthop = NULL; |
0c8215cb | 504 | } |
f820d025 SW |
505 | break; |
506 | } | |
507 | ||
16c628de MS |
508 | case DPLANE_OP_LSP_INSTALL: |
509 | case DPLANE_OP_LSP_UPDATE: | |
510 | case DPLANE_OP_LSP_DELETE: | |
104e3ad9 | 511 | case DPLANE_OP_LSP_NOTIFY: |
16c628de MS |
512 | { |
513 | zebra_nhlfe_t *nhlfe, *next; | |
514 | ||
515 | /* Free allocated NHLFEs */ | |
f73a8467 | 516 | for (nhlfe = ctx->u.lsp.nhlfe_list; nhlfe; nhlfe = next) { |
16c628de MS |
517 | next = nhlfe->next; |
518 | ||
519 | zebra_mpls_nhlfe_del(nhlfe); | |
01ce7cba MS |
520 | } |
521 | ||
16c628de MS |
522 | /* Clear pointers in lsp struct, in case we're cacheing |
523 | * free context structs. | |
524 | */ | |
f73a8467 MS |
525 | ctx->u.lsp.nhlfe_list = NULL; |
526 | ctx->u.lsp.best_nhlfe = NULL; | |
16c628de MS |
527 | |
528 | break; | |
529 | } | |
530 | ||
97d8d05a MS |
531 | case DPLANE_OP_PW_INSTALL: |
532 | case DPLANE_OP_PW_UNINSTALL: | |
16d69787 | 533 | /* Free allocated nexthops */ |
f73a8467 | 534 | if (ctx->u.pw.nhg.nexthop) { |
16d69787 | 535 | /* This deals with recursive nexthops too */ |
f73a8467 | 536 | nexthops_free(ctx->u.pw.nhg.nexthop); |
16d69787 | 537 | |
f73a8467 | 538 | ctx->u.pw.nhg.nexthop = NULL; |
16d69787 MS |
539 | } |
540 | break; | |
541 | ||
a4a4802a MS |
542 | case DPLANE_OP_ADDR_INSTALL: |
543 | case DPLANE_OP_ADDR_UNINSTALL: | |
64168803 | 544 | /* Maybe free label string, if allocated */ |
f73a8467 MS |
545 | if (ctx->u.intf.label != NULL && |
546 | ctx->u.intf.label != ctx->u.intf.label_buf) { | |
547 | free(ctx->u.intf.label); | |
548 | ctx->u.intf.label = NULL; | |
64168803 MS |
549 | } |
550 | break; | |
551 | ||
7597ac7b MS |
552 | case DPLANE_OP_MAC_INSTALL: |
553 | case DPLANE_OP_MAC_DELETE: | |
f2412b2d | 554 | case DPLANE_OP_NEIGH_INSTALL: |
931fa60c | 555 | case DPLANE_OP_NEIGH_UPDATE: |
f2412b2d | 556 | case DPLANE_OP_NEIGH_DELETE: |
0bbd4ff4 MS |
557 | case DPLANE_OP_VTEP_ADD: |
558 | case DPLANE_OP_VTEP_DELETE: | |
16c628de MS |
559 | case DPLANE_OP_NONE: |
560 | break; | |
7cdb1a84 | 561 | } |
f73a8467 MS |
562 | } |
563 | ||
564 | /* | |
565 | * Free a dataplane results context. | |
566 | */ | |
567 | static void dplane_ctx_free(struct zebra_dplane_ctx **pctx) | |
568 | { | |
569 | if (pctx == NULL) | |
570 | return; | |
571 | ||
572 | DPLANE_CTX_VALID(*pctx); | |
573 | ||
574 | /* TODO -- just freeing memory, but would like to maintain | |
575 | * a pool | |
576 | */ | |
577 | ||
578 | /* Some internal allocations may need to be freed, depending on | |
579 | * the type of info captured in the ctx. | |
580 | */ | |
581 | dplane_ctx_free_internal(*pctx); | |
16c628de MS |
582 | |
583 | XFREE(MTYPE_DP_CTX, *pctx); | |
7cdb1a84 MS |
584 | } |
585 | ||
f73a8467 MS |
586 | /* |
587 | * Reset an allocated context object for re-use. All internal allocations are | |
588 | * freed and the context is memset. | |
589 | */ | |
590 | void dplane_ctx_reset(struct zebra_dplane_ctx *ctx) | |
591 | { | |
592 | dplane_ctx_free_internal(ctx); | |
593 | memset(ctx, 0, sizeof(*ctx)); | |
594 | } | |
595 | ||
7cdb1a84 MS |
596 | /* |
597 | * Return a context block to the dplane module after processing | |
598 | */ | |
25779064 | 599 | void dplane_ctx_fini(struct zebra_dplane_ctx **pctx) |
7cdb1a84 | 600 | { |
14b0bc8e | 601 | /* TODO -- maintain pool; for now, just free */ |
7cdb1a84 MS |
602 | dplane_ctx_free(pctx); |
603 | } | |
604 | ||
605 | /* Enqueue a context block */ | |
25779064 MS |
606 | void dplane_ctx_enqueue_tail(struct dplane_ctx_q *q, |
607 | const struct zebra_dplane_ctx *ctx) | |
7cdb1a84 | 608 | { |
25779064 | 609 | TAILQ_INSERT_TAIL(q, (struct zebra_dplane_ctx *)ctx, zd_q_entries); |
7cdb1a84 MS |
610 | } |
611 | ||
14b0bc8e MS |
612 | /* Append a list of context blocks to another list */ |
613 | void dplane_ctx_list_append(struct dplane_ctx_q *to_list, | |
614 | struct dplane_ctx_q *from_list) | |
615 | { | |
616 | if (TAILQ_FIRST(from_list)) { | |
617 | TAILQ_CONCAT(to_list, from_list, zd_q_entries); | |
618 | ||
619 | /* And clear 'from' list */ | |
620 | TAILQ_INIT(from_list); | |
621 | } | |
622 | } | |
623 | ||
7cdb1a84 | 624 | /* Dequeue a context block from the head of a list */ |
68b375e0 | 625 | struct zebra_dplane_ctx *dplane_ctx_dequeue(struct dplane_ctx_q *q) |
7cdb1a84 | 626 | { |
25779064 | 627 | struct zebra_dplane_ctx *ctx = TAILQ_FIRST(q); |
5709131c MS |
628 | |
629 | if (ctx) | |
7cdb1a84 | 630 | TAILQ_REMOVE(q, ctx, zd_q_entries); |
7cdb1a84 | 631 | |
68b375e0 | 632 | return ctx; |
7cdb1a84 MS |
633 | } |
634 | ||
635 | /* | |
636 | * Accessors for information from the context object | |
637 | */ | |
25779064 MS |
638 | enum zebra_dplane_result dplane_ctx_get_status( |
639 | const struct zebra_dplane_ctx *ctx) | |
7cdb1a84 MS |
640 | { |
641 | DPLANE_CTX_VALID(ctx); | |
642 | ||
5709131c | 643 | return ctx->zd_status; |
7cdb1a84 MS |
644 | } |
645 | ||
c831033f MS |
646 | void dplane_ctx_set_status(struct zebra_dplane_ctx *ctx, |
647 | enum zebra_dplane_result status) | |
648 | { | |
649 | DPLANE_CTX_VALID(ctx); | |
650 | ||
651 | ctx->zd_status = status; | |
652 | } | |
653 | ||
654 | /* Retrieve last/current provider id */ | |
655 | uint32_t dplane_ctx_get_provider(const struct zebra_dplane_ctx *ctx) | |
656 | { | |
657 | DPLANE_CTX_VALID(ctx); | |
658 | return ctx->zd_provider; | |
659 | } | |
660 | ||
661 | /* Providers run before the kernel can control whether a kernel | |
662 | * update should be done. | |
663 | */ | |
664 | void dplane_ctx_set_skip_kernel(struct zebra_dplane_ctx *ctx) | |
665 | { | |
666 | DPLANE_CTX_VALID(ctx); | |
667 | ||
668 | SET_FLAG(ctx->zd_flags, DPLANE_CTX_FLAG_NO_KERNEL); | |
669 | } | |
670 | ||
671 | bool dplane_ctx_is_skip_kernel(const struct zebra_dplane_ctx *ctx) | |
672 | { | |
673 | DPLANE_CTX_VALID(ctx); | |
674 | ||
675 | return CHECK_FLAG(ctx->zd_flags, DPLANE_CTX_FLAG_NO_KERNEL); | |
676 | } | |
677 | ||
593e4eb1 MS |
678 | void dplane_ctx_set_op(struct zebra_dplane_ctx *ctx, enum dplane_op_e op) |
679 | { | |
680 | DPLANE_CTX_VALID(ctx); | |
681 | ctx->zd_op = op; | |
682 | } | |
683 | ||
25779064 | 684 | enum dplane_op_e dplane_ctx_get_op(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
685 | { |
686 | DPLANE_CTX_VALID(ctx); | |
687 | ||
5709131c | 688 | return ctx->zd_op; |
7cdb1a84 MS |
689 | } |
690 | ||
5709131c | 691 | const char *dplane_op2str(enum dplane_op_e op) |
7cdb1a84 MS |
692 | { |
693 | const char *ret = "UNKNOWN"; | |
694 | ||
5709131c | 695 | switch (op) { |
7cdb1a84 MS |
696 | case DPLANE_OP_NONE: |
697 | ret = "NONE"; | |
698 | break; | |
699 | ||
700 | /* Route update */ | |
701 | case DPLANE_OP_ROUTE_INSTALL: | |
702 | ret = "ROUTE_INSTALL"; | |
703 | break; | |
704 | case DPLANE_OP_ROUTE_UPDATE: | |
705 | ret = "ROUTE_UPDATE"; | |
706 | break; | |
707 | case DPLANE_OP_ROUTE_DELETE: | |
708 | ret = "ROUTE_DELETE"; | |
709 | break; | |
54818e3b MS |
710 | case DPLANE_OP_ROUTE_NOTIFY: |
711 | ret = "ROUTE_NOTIFY"; | |
712 | break; | |
7cdb1a84 | 713 | |
f820d025 SW |
714 | /* Nexthop update */ |
715 | case DPLANE_OP_NH_INSTALL: | |
716 | ret = "NH_INSTALL"; | |
717 | break; | |
718 | case DPLANE_OP_NH_UPDATE: | |
719 | ret = "NH_UPDATE"; | |
720 | break; | |
721 | case DPLANE_OP_NH_DELETE: | |
722 | ret = "NH_DELETE"; | |
723 | break; | |
724 | ||
16c628de MS |
725 | case DPLANE_OP_LSP_INSTALL: |
726 | ret = "LSP_INSTALL"; | |
727 | break; | |
728 | case DPLANE_OP_LSP_UPDATE: | |
729 | ret = "LSP_UPDATE"; | |
730 | break; | |
731 | case DPLANE_OP_LSP_DELETE: | |
732 | ret = "LSP_DELETE"; | |
733 | break; | |
104e3ad9 MS |
734 | case DPLANE_OP_LSP_NOTIFY: |
735 | ret = "LSP_NOTIFY"; | |
736 | break; | |
16c628de | 737 | |
97d8d05a MS |
738 | case DPLANE_OP_PW_INSTALL: |
739 | ret = "PW_INSTALL"; | |
740 | break; | |
741 | case DPLANE_OP_PW_UNINSTALL: | |
742 | ret = "PW_UNINSTALL"; | |
743 | break; | |
744 | ||
cf363e1b MS |
745 | case DPLANE_OP_SYS_ROUTE_ADD: |
746 | ret = "SYS_ROUTE_ADD"; | |
747 | break; | |
748 | case DPLANE_OP_SYS_ROUTE_DELETE: | |
749 | ret = "SYS_ROUTE_DEL"; | |
750 | break; | |
a4a4802a MS |
751 | |
752 | case DPLANE_OP_ADDR_INSTALL: | |
753 | ret = "ADDR_INSTALL"; | |
754 | break; | |
755 | case DPLANE_OP_ADDR_UNINSTALL: | |
756 | ret = "ADDR_UNINSTALL"; | |
757 | break; | |
758 | ||
7597ac7b MS |
759 | case DPLANE_OP_MAC_INSTALL: |
760 | ret = "MAC_INSTALL"; | |
761 | break; | |
762 | case DPLANE_OP_MAC_DELETE: | |
763 | ret = "MAC_DELETE"; | |
764 | break; | |
f2412b2d MS |
765 | |
766 | case DPLANE_OP_NEIGH_INSTALL: | |
767 | ret = "NEIGH_INSTALL"; | |
768 | break; | |
931fa60c MS |
769 | case DPLANE_OP_NEIGH_UPDATE: |
770 | ret = "NEIGH_UPDATE"; | |
771 | break; | |
f2412b2d MS |
772 | case DPLANE_OP_NEIGH_DELETE: |
773 | ret = "NEIGH_DELETE"; | |
774 | break; | |
0bbd4ff4 MS |
775 | case DPLANE_OP_VTEP_ADD: |
776 | ret = "VTEP_ADD"; | |
777 | break; | |
778 | case DPLANE_OP_VTEP_DELETE: | |
779 | ret = "VTEP_DELETE"; | |
780 | break; | |
5b94ec50 | 781 | } |
7cdb1a84 | 782 | |
5709131c | 783 | return ret; |
7cdb1a84 MS |
784 | } |
785 | ||
f183e380 MS |
786 | const char *dplane_res2str(enum zebra_dplane_result res) |
787 | { | |
788 | const char *ret = "<Unknown>"; | |
789 | ||
790 | switch (res) { | |
791 | case ZEBRA_DPLANE_REQUEST_FAILURE: | |
792 | ret = "FAILURE"; | |
793 | break; | |
794 | case ZEBRA_DPLANE_REQUEST_QUEUED: | |
795 | ret = "QUEUED"; | |
796 | break; | |
797 | case ZEBRA_DPLANE_REQUEST_SUCCESS: | |
798 | ret = "SUCCESS"; | |
799 | break; | |
5b94ec50 | 800 | } |
f183e380 MS |
801 | |
802 | return ret; | |
803 | } | |
804 | ||
593e4eb1 MS |
805 | void dplane_ctx_set_dest(struct zebra_dplane_ctx *ctx, |
806 | const struct prefix *dest) | |
807 | { | |
808 | DPLANE_CTX_VALID(ctx); | |
809 | ||
810 | prefix_copy(&(ctx->u.rinfo.zd_dest), dest); | |
811 | } | |
812 | ||
25779064 | 813 | const struct prefix *dplane_ctx_get_dest(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
814 | { |
815 | DPLANE_CTX_VALID(ctx); | |
816 | ||
0f461727 | 817 | return &(ctx->u.rinfo.zd_dest); |
7cdb1a84 MS |
818 | } |
819 | ||
593e4eb1 MS |
820 | void dplane_ctx_set_src(struct zebra_dplane_ctx *ctx, const struct prefix *src) |
821 | { | |
822 | DPLANE_CTX_VALID(ctx); | |
823 | ||
824 | if (src) | |
825 | prefix_copy(&(ctx->u.rinfo.zd_src), src); | |
826 | else | |
827 | memset(&(ctx->u.rinfo.zd_src), 0, sizeof(struct prefix)); | |
828 | } | |
829 | ||
5709131c | 830 | /* Source prefix is a little special - return NULL for "no src prefix" */ |
25779064 | 831 | const struct prefix *dplane_ctx_get_src(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
832 | { |
833 | DPLANE_CTX_VALID(ctx); | |
834 | ||
0f461727 MS |
835 | if (ctx->u.rinfo.zd_src.prefixlen == 0 && |
836 | IN6_IS_ADDR_UNSPECIFIED(&(ctx->u.rinfo.zd_src.u.prefix6))) { | |
5709131c | 837 | return NULL; |
7cdb1a84 | 838 | } else { |
0f461727 | 839 | return &(ctx->u.rinfo.zd_src); |
7cdb1a84 MS |
840 | } |
841 | } | |
842 | ||
25779064 | 843 | bool dplane_ctx_is_update(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
844 | { |
845 | DPLANE_CTX_VALID(ctx); | |
846 | ||
5709131c | 847 | return ctx->zd_is_update; |
7cdb1a84 MS |
848 | } |
849 | ||
25779064 | 850 | uint32_t dplane_ctx_get_seq(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
851 | { |
852 | DPLANE_CTX_VALID(ctx); | |
853 | ||
5709131c | 854 | return ctx->zd_seq; |
7cdb1a84 MS |
855 | } |
856 | ||
25779064 | 857 | uint32_t dplane_ctx_get_old_seq(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
858 | { |
859 | DPLANE_CTX_VALID(ctx); | |
860 | ||
5709131c | 861 | return ctx->zd_old_seq; |
7cdb1a84 MS |
862 | } |
863 | ||
593e4eb1 MS |
864 | void dplane_ctx_set_vrf(struct zebra_dplane_ctx *ctx, vrf_id_t vrf) |
865 | { | |
866 | DPLANE_CTX_VALID(ctx); | |
867 | ||
868 | ctx->zd_vrf_id = vrf; | |
869 | } | |
870 | ||
25779064 | 871 | vrf_id_t dplane_ctx_get_vrf(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
872 | { |
873 | DPLANE_CTX_VALID(ctx); | |
874 | ||
5709131c | 875 | return ctx->zd_vrf_id; |
7cdb1a84 MS |
876 | } |
877 | ||
0024a559 MS |
878 | bool dplane_ctx_is_from_notif(const struct zebra_dplane_ctx *ctx) |
879 | { | |
880 | DPLANE_CTX_VALID(ctx); | |
881 | ||
882 | return (ctx->zd_notif_provider != 0); | |
883 | } | |
884 | ||
885 | uint32_t dplane_ctx_get_notif_provider(const struct zebra_dplane_ctx *ctx) | |
886 | { | |
887 | DPLANE_CTX_VALID(ctx); | |
888 | ||
889 | return ctx->zd_notif_provider; | |
890 | } | |
891 | ||
9651af61 MS |
892 | void dplane_ctx_set_notif_provider(struct zebra_dplane_ctx *ctx, |
893 | uint32_t id) | |
894 | { | |
895 | DPLANE_CTX_VALID(ctx); | |
896 | ||
897 | ctx->zd_notif_provider = id; | |
898 | } | |
7c7ef4a8 MS |
899 | const char *dplane_ctx_get_ifname(const struct zebra_dplane_ctx *ctx) |
900 | { | |
901 | DPLANE_CTX_VALID(ctx); | |
902 | ||
903 | return ctx->zd_ifname; | |
904 | } | |
905 | ||
906 | ifindex_t dplane_ctx_get_ifindex(const struct zebra_dplane_ctx *ctx) | |
907 | { | |
908 | DPLANE_CTX_VALID(ctx); | |
909 | ||
910 | return ctx->zd_ifindex; | |
911 | } | |
9651af61 | 912 | |
593e4eb1 MS |
913 | void dplane_ctx_set_type(struct zebra_dplane_ctx *ctx, int type) |
914 | { | |
915 | DPLANE_CTX_VALID(ctx); | |
916 | ||
917 | ctx->u.rinfo.zd_type = type; | |
918 | } | |
919 | ||
25779064 | 920 | int dplane_ctx_get_type(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
921 | { |
922 | DPLANE_CTX_VALID(ctx); | |
923 | ||
0f461727 | 924 | return ctx->u.rinfo.zd_type; |
7cdb1a84 MS |
925 | } |
926 | ||
25779064 | 927 | int dplane_ctx_get_old_type(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
928 | { |
929 | DPLANE_CTX_VALID(ctx); | |
930 | ||
0f461727 | 931 | return ctx->u.rinfo.zd_old_type; |
7cdb1a84 MS |
932 | } |
933 | ||
593e4eb1 MS |
934 | void dplane_ctx_set_afi(struct zebra_dplane_ctx *ctx, afi_t afi) |
935 | { | |
936 | DPLANE_CTX_VALID(ctx); | |
937 | ||
938 | ctx->u.rinfo.zd_afi = afi; | |
939 | } | |
940 | ||
25779064 | 941 | afi_t dplane_ctx_get_afi(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
942 | { |
943 | DPLANE_CTX_VALID(ctx); | |
944 | ||
0f461727 | 945 | return ctx->u.rinfo.zd_afi; |
7cdb1a84 MS |
946 | } |
947 | ||
593e4eb1 MS |
948 | void dplane_ctx_set_safi(struct zebra_dplane_ctx *ctx, safi_t safi) |
949 | { | |
950 | DPLANE_CTX_VALID(ctx); | |
951 | ||
952 | ctx->u.rinfo.zd_safi = safi; | |
953 | } | |
954 | ||
25779064 | 955 | safi_t dplane_ctx_get_safi(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
956 | { |
957 | DPLANE_CTX_VALID(ctx); | |
958 | ||
0f461727 | 959 | return ctx->u.rinfo.zd_safi; |
7cdb1a84 MS |
960 | } |
961 | ||
593e4eb1 MS |
962 | void dplane_ctx_set_table(struct zebra_dplane_ctx *ctx, uint32_t table) |
963 | { | |
964 | DPLANE_CTX_VALID(ctx); | |
965 | ||
966 | ctx->zd_table_id = table; | |
967 | } | |
968 | ||
25779064 | 969 | uint32_t dplane_ctx_get_table(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
970 | { |
971 | DPLANE_CTX_VALID(ctx); | |
972 | ||
5709131c | 973 | return ctx->zd_table_id; |
7cdb1a84 MS |
974 | } |
975 | ||
25779064 | 976 | route_tag_t dplane_ctx_get_tag(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
977 | { |
978 | DPLANE_CTX_VALID(ctx); | |
979 | ||
0f461727 | 980 | return ctx->u.rinfo.zd_tag; |
7cdb1a84 MS |
981 | } |
982 | ||
6a91ae98 MS |
983 | void dplane_ctx_set_tag(struct zebra_dplane_ctx *ctx, route_tag_t tag) |
984 | { | |
985 | DPLANE_CTX_VALID(ctx); | |
986 | ||
987 | ctx->u.rinfo.zd_tag = tag; | |
988 | } | |
989 | ||
25779064 | 990 | route_tag_t dplane_ctx_get_old_tag(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
991 | { |
992 | DPLANE_CTX_VALID(ctx); | |
993 | ||
0f461727 | 994 | return ctx->u.rinfo.zd_old_tag; |
7cdb1a84 MS |
995 | } |
996 | ||
25779064 | 997 | uint16_t dplane_ctx_get_instance(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
998 | { |
999 | DPLANE_CTX_VALID(ctx); | |
1000 | ||
0f461727 | 1001 | return ctx->u.rinfo.zd_instance; |
7cdb1a84 MS |
1002 | } |
1003 | ||
6a91ae98 MS |
1004 | void dplane_ctx_set_instance(struct zebra_dplane_ctx *ctx, uint16_t instance) |
1005 | { | |
1006 | DPLANE_CTX_VALID(ctx); | |
1007 | ||
1008 | ctx->u.rinfo.zd_instance = instance; | |
1009 | } | |
1010 | ||
25779064 | 1011 | uint16_t dplane_ctx_get_old_instance(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
1012 | { |
1013 | DPLANE_CTX_VALID(ctx); | |
1014 | ||
0f461727 | 1015 | return ctx->u.rinfo.zd_old_instance; |
7cdb1a84 MS |
1016 | } |
1017 | ||
25779064 | 1018 | uint32_t dplane_ctx_get_metric(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
1019 | { |
1020 | DPLANE_CTX_VALID(ctx); | |
1021 | ||
0f461727 | 1022 | return ctx->u.rinfo.zd_metric; |
7cdb1a84 MS |
1023 | } |
1024 | ||
25779064 | 1025 | uint32_t dplane_ctx_get_old_metric(const struct zebra_dplane_ctx *ctx) |
01ce7cba MS |
1026 | { |
1027 | DPLANE_CTX_VALID(ctx); | |
1028 | ||
0f461727 | 1029 | return ctx->u.rinfo.zd_old_metric; |
01ce7cba MS |
1030 | } |
1031 | ||
25779064 | 1032 | uint32_t dplane_ctx_get_mtu(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
1033 | { |
1034 | DPLANE_CTX_VALID(ctx); | |
1035 | ||
0f461727 | 1036 | return ctx->u.rinfo.zd_mtu; |
7cdb1a84 MS |
1037 | } |
1038 | ||
25779064 | 1039 | uint32_t dplane_ctx_get_nh_mtu(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
1040 | { |
1041 | DPLANE_CTX_VALID(ctx); | |
1042 | ||
0f461727 | 1043 | return ctx->u.rinfo.zd_nexthop_mtu; |
7cdb1a84 MS |
1044 | } |
1045 | ||
25779064 | 1046 | uint8_t dplane_ctx_get_distance(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
1047 | { |
1048 | DPLANE_CTX_VALID(ctx); | |
1049 | ||
0f461727 | 1050 | return ctx->u.rinfo.zd_distance; |
7cdb1a84 MS |
1051 | } |
1052 | ||
6a91ae98 MS |
1053 | void dplane_ctx_set_distance(struct zebra_dplane_ctx *ctx, uint8_t distance) |
1054 | { | |
1055 | DPLANE_CTX_VALID(ctx); | |
1056 | ||
1057 | ctx->u.rinfo.zd_distance = distance; | |
1058 | } | |
1059 | ||
25779064 | 1060 | uint8_t dplane_ctx_get_old_distance(const struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
1061 | { |
1062 | DPLANE_CTX_VALID(ctx); | |
1063 | ||
0f461727 | 1064 | return ctx->u.rinfo.zd_old_distance; |
7cdb1a84 MS |
1065 | } |
1066 | ||
e1f3a8eb MS |
1067 | /* |
1068 | * Set the nexthops associated with a context: note that processing code | |
1069 | * may well expect that nexthops are in canonical (sorted) order, so we | |
1070 | * will enforce that here. | |
1071 | */ | |
593e4eb1 MS |
1072 | void dplane_ctx_set_nexthops(struct zebra_dplane_ctx *ctx, struct nexthop *nh) |
1073 | { | |
1074 | DPLANE_CTX_VALID(ctx); | |
1075 | ||
1076 | if (ctx->u.rinfo.zd_ng.nexthop) { | |
1077 | nexthops_free(ctx->u.rinfo.zd_ng.nexthop); | |
1078 | ctx->u.rinfo.zd_ng.nexthop = NULL; | |
1079 | } | |
e1f3a8eb | 1080 | nexthop_group_copy_nh_sorted(&(ctx->u.rinfo.zd_ng), nh); |
593e4eb1 MS |
1081 | } |
1082 | ||
1d48702e MS |
1083 | uint32_t dplane_ctx_get_nhg_id(const struct zebra_dplane_ctx *ctx) |
1084 | { | |
1085 | DPLANE_CTX_VALID(ctx); | |
1086 | return ctx->u.rinfo.zd_nhg_id; | |
1087 | } | |
1088 | ||
25779064 MS |
1089 | const struct nexthop_group *dplane_ctx_get_ng( |
1090 | const struct zebra_dplane_ctx *ctx) | |
7cdb1a84 MS |
1091 | { |
1092 | DPLANE_CTX_VALID(ctx); | |
1093 | ||
0f461727 | 1094 | return &(ctx->u.rinfo.zd_ng); |
7cdb1a84 MS |
1095 | } |
1096 | ||
1d48702e MS |
1097 | const struct nexthop_group * |
1098 | dplane_ctx_get_backup_ng(const struct zebra_dplane_ctx *ctx) | |
1099 | { | |
1100 | DPLANE_CTX_VALID(ctx); | |
1101 | ||
1102 | return &(ctx->u.rinfo.backup_ng); | |
1103 | } | |
1104 | ||
1105 | const struct nexthop_group * | |
1106 | dplane_ctx_get_old_ng(const struct zebra_dplane_ctx *ctx) | |
01ce7cba MS |
1107 | { |
1108 | DPLANE_CTX_VALID(ctx); | |
1109 | ||
0f461727 | 1110 | return &(ctx->u.rinfo.zd_old_ng); |
01ce7cba MS |
1111 | } |
1112 | ||
1d48702e MS |
1113 | const struct nexthop_group * |
1114 | dplane_ctx_get_old_backup_ng(const struct zebra_dplane_ctx *ctx) | |
1115 | { | |
1116 | DPLANE_CTX_VALID(ctx); | |
1117 | ||
1118 | return &(ctx->u.rinfo.old_backup_ng); | |
1119 | } | |
1120 | ||
25779064 MS |
1121 | const struct zebra_dplane_info *dplane_ctx_get_ns( |
1122 | const struct zebra_dplane_ctx *ctx) | |
7cdb1a84 MS |
1123 | { |
1124 | DPLANE_CTX_VALID(ctx); | |
1125 | ||
5709131c | 1126 | return &(ctx->zd_ns_info); |
7cdb1a84 MS |
1127 | } |
1128 | ||
f820d025 | 1129 | /* Accessors for nexthop information */ |
0c8215cb SW |
1130 | uint32_t dplane_ctx_get_nhe_id(const struct zebra_dplane_ctx *ctx) |
1131 | { | |
1132 | DPLANE_CTX_VALID(ctx); | |
1133 | return ctx->u.rinfo.nhe.id; | |
1134 | } | |
1135 | ||
1136 | afi_t dplane_ctx_get_nhe_afi(const struct zebra_dplane_ctx *ctx) | |
1137 | { | |
1138 | DPLANE_CTX_VALID(ctx); | |
1139 | return ctx->u.rinfo.nhe.afi; | |
1140 | } | |
1141 | ||
1142 | vrf_id_t dplane_ctx_get_nhe_vrf_id(const struct zebra_dplane_ctx *ctx) | |
f820d025 SW |
1143 | { |
1144 | DPLANE_CTX_VALID(ctx); | |
0c8215cb SW |
1145 | return ctx->u.rinfo.nhe.vrf_id; |
1146 | } | |
1147 | ||
38e40db1 | 1148 | int dplane_ctx_get_nhe_type(const struct zebra_dplane_ctx *ctx) |
0c8215cb SW |
1149 | { |
1150 | DPLANE_CTX_VALID(ctx); | |
38e40db1 | 1151 | return ctx->u.rinfo.nhe.type; |
0c8215cb SW |
1152 | } |
1153 | ||
1154 | const struct nexthop_group * | |
1155 | dplane_ctx_get_nhe_ng(const struct zebra_dplane_ctx *ctx) | |
1156 | { | |
1157 | DPLANE_CTX_VALID(ctx); | |
1158 | return &(ctx->u.rinfo.nhe.ng); | |
1159 | } | |
1160 | ||
e22e8001 SW |
1161 | const struct nh_grp * |
1162 | dplane_ctx_get_nhe_nh_grp(const struct zebra_dplane_ctx *ctx) | |
0c8215cb SW |
1163 | { |
1164 | DPLANE_CTX_VALID(ctx); | |
e22e8001 | 1165 | return ctx->u.rinfo.nhe.nh_grp; |
0c8215cb SW |
1166 | } |
1167 | ||
e22e8001 | 1168 | uint8_t dplane_ctx_get_nhe_nh_grp_count(const struct zebra_dplane_ctx *ctx) |
0c8215cb SW |
1169 | { |
1170 | DPLANE_CTX_VALID(ctx); | |
e22e8001 | 1171 | return ctx->u.rinfo.nhe.nh_grp_count; |
f820d025 SW |
1172 | } |
1173 | ||
0f461727 MS |
1174 | /* Accessors for LSP information */ |
1175 | ||
1176 | mpls_label_t dplane_ctx_get_in_label(const struct zebra_dplane_ctx *ctx) | |
1177 | { | |
1178 | DPLANE_CTX_VALID(ctx); | |
1179 | ||
1180 | return ctx->u.lsp.ile.in_label; | |
1181 | } | |
1182 | ||
3ab54059 MS |
1183 | void dplane_ctx_set_in_label(struct zebra_dplane_ctx *ctx, mpls_label_t label) |
1184 | { | |
1185 | DPLANE_CTX_VALID(ctx); | |
1186 | ||
1187 | ctx->u.lsp.ile.in_label = label; | |
1188 | } | |
1189 | ||
0f461727 MS |
1190 | uint8_t dplane_ctx_get_addr_family(const struct zebra_dplane_ctx *ctx) |
1191 | { | |
1192 | DPLANE_CTX_VALID(ctx); | |
1193 | ||
1194 | return ctx->u.lsp.addr_family; | |
1195 | } | |
1196 | ||
3ab54059 MS |
1197 | void dplane_ctx_set_addr_family(struct zebra_dplane_ctx *ctx, |
1198 | uint8_t family) | |
1199 | { | |
1200 | DPLANE_CTX_VALID(ctx); | |
1201 | ||
1202 | ctx->u.lsp.addr_family = family; | |
1203 | } | |
1204 | ||
0f461727 MS |
1205 | uint32_t dplane_ctx_get_lsp_flags(const struct zebra_dplane_ctx *ctx) |
1206 | { | |
1207 | DPLANE_CTX_VALID(ctx); | |
1208 | ||
1209 | return ctx->u.lsp.flags; | |
1210 | } | |
1211 | ||
3ab54059 MS |
1212 | void dplane_ctx_set_lsp_flags(struct zebra_dplane_ctx *ctx, |
1213 | uint32_t flags) | |
1214 | { | |
1215 | DPLANE_CTX_VALID(ctx); | |
1216 | ||
1217 | ctx->u.lsp.flags = flags; | |
1218 | } | |
1219 | ||
81793ac1 | 1220 | const zebra_nhlfe_t *dplane_ctx_get_nhlfe(const struct zebra_dplane_ctx *ctx) |
0f461727 MS |
1221 | { |
1222 | DPLANE_CTX_VALID(ctx); | |
1223 | ||
1224 | return ctx->u.lsp.nhlfe_list; | |
1225 | } | |
1226 | ||
3ab54059 MS |
1227 | zebra_nhlfe_t *dplane_ctx_add_nhlfe(struct zebra_dplane_ctx *ctx, |
1228 | enum lsp_types_t lsp_type, | |
1229 | enum nexthop_types_t nh_type, | |
1230 | union g_addr *gate, | |
1231 | ifindex_t ifindex, | |
5065db0a RW |
1232 | uint8_t num_labels, |
1233 | mpls_label_t out_labels[]) | |
3ab54059 MS |
1234 | { |
1235 | zebra_nhlfe_t *nhlfe; | |
1236 | ||
1237 | DPLANE_CTX_VALID(ctx); | |
1238 | ||
1239 | nhlfe = zebra_mpls_lsp_add_nhlfe(&(ctx->u.lsp), | |
1240 | lsp_type, nh_type, gate, | |
5065db0a | 1241 | ifindex, num_labels, out_labels); |
3ab54059 MS |
1242 | |
1243 | return nhlfe; | |
1244 | } | |
1245 | ||
81793ac1 MS |
1246 | const zebra_nhlfe_t * |
1247 | dplane_ctx_get_best_nhlfe(const struct zebra_dplane_ctx *ctx) | |
0f461727 MS |
1248 | { |
1249 | DPLANE_CTX_VALID(ctx); | |
1250 | ||
1251 | return ctx->u.lsp.best_nhlfe; | |
1252 | } | |
1253 | ||
3ab54059 MS |
1254 | const zebra_nhlfe_t * |
1255 | dplane_ctx_set_best_nhlfe(struct zebra_dplane_ctx *ctx, | |
1256 | zebra_nhlfe_t *nhlfe) | |
1257 | { | |
1258 | DPLANE_CTX_VALID(ctx); | |
1259 | ||
1260 | ctx->u.lsp.best_nhlfe = nhlfe; | |
1261 | return ctx->u.lsp.best_nhlfe; | |
1262 | } | |
1263 | ||
0f461727 MS |
1264 | uint32_t dplane_ctx_get_lsp_num_ecmp(const struct zebra_dplane_ctx *ctx) |
1265 | { | |
1266 | DPLANE_CTX_VALID(ctx); | |
1267 | ||
1268 | return ctx->u.lsp.num_ecmp; | |
1269 | } | |
1270 | ||
d613b8e1 MS |
1271 | mpls_label_t dplane_ctx_get_pw_local_label(const struct zebra_dplane_ctx *ctx) |
1272 | { | |
1273 | DPLANE_CTX_VALID(ctx); | |
1274 | ||
1275 | return ctx->u.pw.local_label; | |
1276 | } | |
1277 | ||
1278 | mpls_label_t dplane_ctx_get_pw_remote_label(const struct zebra_dplane_ctx *ctx) | |
1279 | { | |
1280 | DPLANE_CTX_VALID(ctx); | |
1281 | ||
1282 | return ctx->u.pw.remote_label; | |
1283 | } | |
1284 | ||
1285 | int dplane_ctx_get_pw_type(const struct zebra_dplane_ctx *ctx) | |
1286 | { | |
1287 | DPLANE_CTX_VALID(ctx); | |
1288 | ||
1289 | return ctx->u.pw.type; | |
1290 | } | |
1291 | ||
1292 | int dplane_ctx_get_pw_af(const struct zebra_dplane_ctx *ctx) | |
1293 | { | |
1294 | DPLANE_CTX_VALID(ctx); | |
1295 | ||
1296 | return ctx->u.pw.af; | |
1297 | } | |
1298 | ||
1299 | uint32_t dplane_ctx_get_pw_flags(const struct zebra_dplane_ctx *ctx) | |
1300 | { | |
1301 | DPLANE_CTX_VALID(ctx); | |
1302 | ||
1303 | return ctx->u.pw.flags; | |
1304 | } | |
1305 | ||
1306 | int dplane_ctx_get_pw_status(const struct zebra_dplane_ctx *ctx) | |
1307 | { | |
1308 | DPLANE_CTX_VALID(ctx); | |
1309 | ||
1310 | return ctx->u.pw.status; | |
1311 | } | |
1312 | ||
16d69787 | 1313 | const union g_addr *dplane_ctx_get_pw_dest( |
d613b8e1 MS |
1314 | const struct zebra_dplane_ctx *ctx) |
1315 | { | |
1316 | DPLANE_CTX_VALID(ctx); | |
1317 | ||
16d69787 | 1318 | return &(ctx->u.pw.dest); |
d613b8e1 MS |
1319 | } |
1320 | ||
1321 | const union pw_protocol_fields *dplane_ctx_get_pw_proto( | |
1322 | const struct zebra_dplane_ctx *ctx) | |
1323 | { | |
1324 | DPLANE_CTX_VALID(ctx); | |
1325 | ||
1326 | return &(ctx->u.pw.fields); | |
1327 | } | |
1328 | ||
09cd307c MS |
1329 | const struct nexthop_group * |
1330 | dplane_ctx_get_pw_nhg(const struct zebra_dplane_ctx *ctx) | |
1331 | { | |
1332 | DPLANE_CTX_VALID(ctx); | |
1333 | ||
1334 | return &(ctx->u.pw.nhg); | |
1335 | } | |
1336 | ||
a4a4802a | 1337 | /* Accessors for interface information */ |
a4a4802a MS |
1338 | uint32_t dplane_ctx_get_intf_metric(const struct zebra_dplane_ctx *ctx) |
1339 | { | |
1340 | DPLANE_CTX_VALID(ctx); | |
1341 | ||
1342 | return ctx->u.intf.metric; | |
1343 | } | |
1344 | ||
1345 | /* Is interface addr p2p? */ | |
1346 | bool dplane_ctx_intf_is_connected(const struct zebra_dplane_ctx *ctx) | |
1347 | { | |
1348 | DPLANE_CTX_VALID(ctx); | |
1349 | ||
1350 | return (ctx->u.intf.flags & DPLANE_INTF_CONNECTED); | |
1351 | } | |
1352 | ||
1353 | bool dplane_ctx_intf_is_secondary(const struct zebra_dplane_ctx *ctx) | |
1354 | { | |
1355 | DPLANE_CTX_VALID(ctx); | |
1356 | ||
1357 | return (ctx->u.intf.flags & DPLANE_INTF_SECONDARY); | |
1358 | } | |
1359 | ||
64168803 MS |
1360 | bool dplane_ctx_intf_is_broadcast(const struct zebra_dplane_ctx *ctx) |
1361 | { | |
1362 | DPLANE_CTX_VALID(ctx); | |
1363 | ||
1364 | return (ctx->u.intf.flags & DPLANE_INTF_BROADCAST); | |
1365 | } | |
1366 | ||
a4a4802a MS |
1367 | const struct prefix *dplane_ctx_get_intf_addr( |
1368 | const struct zebra_dplane_ctx *ctx) | |
1369 | { | |
1370 | DPLANE_CTX_VALID(ctx); | |
1371 | ||
1372 | return &(ctx->u.intf.prefix); | |
1373 | } | |
1374 | ||
1375 | bool dplane_ctx_intf_has_dest(const struct zebra_dplane_ctx *ctx) | |
1376 | { | |
1377 | DPLANE_CTX_VALID(ctx); | |
1378 | ||
1379 | return (ctx->u.intf.flags & DPLANE_INTF_HAS_DEST); | |
1380 | } | |
1381 | ||
1382 | const struct prefix *dplane_ctx_get_intf_dest( | |
1383 | const struct zebra_dplane_ctx *ctx) | |
1384 | { | |
1385 | DPLANE_CTX_VALID(ctx); | |
1386 | ||
1387 | if (ctx->u.intf.flags & DPLANE_INTF_HAS_DEST) | |
1388 | return &(ctx->u.intf.dest_prefix); | |
1389 | else | |
1390 | return NULL; | |
1391 | } | |
1392 | ||
1393 | bool dplane_ctx_intf_has_label(const struct zebra_dplane_ctx *ctx) | |
1394 | { | |
1395 | DPLANE_CTX_VALID(ctx); | |
1396 | ||
1397 | return (ctx->u.intf.flags & DPLANE_INTF_HAS_LABEL); | |
1398 | } | |
1399 | ||
1400 | const char *dplane_ctx_get_intf_label(const struct zebra_dplane_ctx *ctx) | |
1401 | { | |
1402 | DPLANE_CTX_VALID(ctx); | |
1403 | ||
1404 | return ctx->u.intf.label; | |
1405 | } | |
1406 | ||
7597ac7b MS |
1407 | /* Accessors for MAC information */ |
1408 | vlanid_t dplane_ctx_mac_get_vlan(const struct zebra_dplane_ctx *ctx) | |
1409 | { | |
1410 | DPLANE_CTX_VALID(ctx); | |
1411 | return ctx->u.macinfo.vid; | |
1412 | } | |
1413 | ||
1414 | bool dplane_ctx_mac_is_sticky(const struct zebra_dplane_ctx *ctx) | |
1415 | { | |
1416 | DPLANE_CTX_VALID(ctx); | |
1417 | return ctx->u.macinfo.is_sticky; | |
1418 | } | |
1419 | ||
1420 | const struct ethaddr *dplane_ctx_mac_get_addr( | |
1421 | const struct zebra_dplane_ctx *ctx) | |
1422 | { | |
1423 | DPLANE_CTX_VALID(ctx); | |
1424 | return &(ctx->u.macinfo.mac); | |
1425 | } | |
1426 | ||
1427 | const struct in_addr *dplane_ctx_mac_get_vtep_ip( | |
1428 | const struct zebra_dplane_ctx *ctx) | |
1429 | { | |
1430 | DPLANE_CTX_VALID(ctx); | |
1431 | return &(ctx->u.macinfo.vtep_ip); | |
1432 | } | |
1433 | ||
478566d6 MS |
1434 | ifindex_t dplane_ctx_mac_get_br_ifindex(const struct zebra_dplane_ctx *ctx) |
1435 | { | |
1436 | DPLANE_CTX_VALID(ctx); | |
1437 | return ctx->u.macinfo.br_ifindex; | |
1438 | } | |
1439 | ||
931fa60c MS |
1440 | /* Accessors for neighbor information */ |
1441 | const struct ipaddr *dplane_ctx_neigh_get_ipaddr( | |
1442 | const struct zebra_dplane_ctx *ctx) | |
1443 | { | |
1444 | DPLANE_CTX_VALID(ctx); | |
1445 | return &(ctx->u.neigh.ip_addr); | |
1446 | } | |
1447 | ||
1448 | const struct ethaddr *dplane_ctx_neigh_get_mac( | |
1449 | const struct zebra_dplane_ctx *ctx) | |
1450 | { | |
1451 | DPLANE_CTX_VALID(ctx); | |
1452 | return &(ctx->u.neigh.mac); | |
1453 | } | |
1454 | ||
1455 | uint32_t dplane_ctx_neigh_get_flags(const struct zebra_dplane_ctx *ctx) | |
1456 | { | |
1457 | DPLANE_CTX_VALID(ctx); | |
1458 | return ctx->u.neigh.flags; | |
1459 | } | |
1460 | ||
1461 | uint16_t dplane_ctx_neigh_get_state(const struct zebra_dplane_ctx *ctx) | |
1462 | { | |
1463 | DPLANE_CTX_VALID(ctx); | |
1464 | return ctx->u.neigh.state; | |
1465 | } | |
1466 | ||
7cdb1a84 MS |
1467 | /* |
1468 | * End of dplane context accessors | |
1469 | */ | |
1470 | ||
c831033f | 1471 | |
91f16812 MS |
1472 | /* |
1473 | * Retrieve the limit on the number of pending, unprocessed updates. | |
1474 | */ | |
1475 | uint32_t dplane_get_in_queue_limit(void) | |
1476 | { | |
1477 | return atomic_load_explicit(&zdplane_info.dg_max_queued_updates, | |
1478 | memory_order_relaxed); | |
1479 | } | |
1480 | ||
1481 | /* | |
1482 | * Configure limit on the number of pending, queued updates. | |
1483 | */ | |
1484 | void dplane_set_in_queue_limit(uint32_t limit, bool set) | |
1485 | { | |
1486 | /* Reset to default on 'unset' */ | |
1487 | if (!set) | |
1488 | limit = DPLANE_DEFAULT_MAX_QUEUED; | |
1489 | ||
1490 | atomic_store_explicit(&zdplane_info.dg_max_queued_updates, limit, | |
1491 | memory_order_relaxed); | |
1492 | } | |
1493 | ||
1494 | /* | |
1495 | * Retrieve the current queue depth of incoming, unprocessed updates | |
1496 | */ | |
1497 | uint32_t dplane_get_in_queue_len(void) | |
1498 | { | |
1499 | return atomic_load_explicit(&zdplane_info.dg_routes_queued, | |
1500 | memory_order_seq_cst); | |
1501 | } | |
1502 | ||
16c628de MS |
1503 | /* |
1504 | * Common dataplane context init with zebra namespace info. | |
1505 | */ | |
1506 | static int dplane_ctx_ns_init(struct zebra_dplane_ctx *ctx, | |
1507 | struct zebra_ns *zns, | |
1508 | bool is_update) | |
1509 | { | |
1510 | dplane_info_from_zns(&(ctx->zd_ns_info), zns); | |
1511 | ||
1512 | #if defined(HAVE_NETLINK) | |
1513 | /* Increment message counter after copying to context struct - may need | |
1514 | * two messages in some 'update' cases. | |
1515 | */ | |
1516 | if (is_update) | |
1517 | zns->netlink_dplane.seq += 2; | |
1518 | else | |
1519 | zns->netlink_dplane.seq++; | |
1520 | #endif /* HAVE_NETLINK */ | |
1521 | ||
1522 | return AOK; | |
1523 | } | |
1524 | ||
7cdb1a84 MS |
1525 | /* |
1526 | * Initialize a context block for a route update from zebra data structs. | |
1527 | */ | |
018e77bc RZ |
1528 | int dplane_ctx_route_init(struct zebra_dplane_ctx *ctx, enum dplane_op_e op, |
1529 | struct route_node *rn, struct route_entry *re) | |
7cdb1a84 MS |
1530 | { |
1531 | int ret = EINVAL; | |
1532 | const struct route_table *table = NULL; | |
1533 | const rib_table_info_t *info; | |
1534 | const struct prefix *p, *src_p; | |
1535 | struct zebra_ns *zns; | |
1536 | struct zebra_vrf *zvrf; | |
f183e380 | 1537 | struct nexthop *nexthop; |
f2a0ba3a | 1538 | zebra_l3vni_t *zl3vni; |
7cdb1a84 | 1539 | |
5709131c | 1540 | if (!ctx || !rn || !re) |
7cdb1a84 | 1541 | goto done; |
7cdb1a84 MS |
1542 | |
1543 | ctx->zd_op = op; | |
14b0bc8e | 1544 | ctx->zd_status = ZEBRA_DPLANE_REQUEST_SUCCESS; |
7cdb1a84 | 1545 | |
0f461727 MS |
1546 | ctx->u.rinfo.zd_type = re->type; |
1547 | ctx->u.rinfo.zd_old_type = re->type; | |
7cdb1a84 MS |
1548 | |
1549 | /* Prefixes: dest, and optional source */ | |
1550 | srcdest_rnode_prefixes(rn, &p, &src_p); | |
1551 | ||
0f461727 | 1552 | prefix_copy(&(ctx->u.rinfo.zd_dest), p); |
7cdb1a84 | 1553 | |
5709131c | 1554 | if (src_p) |
0f461727 | 1555 | prefix_copy(&(ctx->u.rinfo.zd_src), src_p); |
5709131c | 1556 | else |
0f461727 | 1557 | memset(&(ctx->u.rinfo.zd_src), 0, sizeof(ctx->u.rinfo.zd_src)); |
7cdb1a84 MS |
1558 | |
1559 | ctx->zd_table_id = re->table; | |
1560 | ||
0f461727 MS |
1561 | ctx->u.rinfo.zd_metric = re->metric; |
1562 | ctx->u.rinfo.zd_old_metric = re->metric; | |
7cdb1a84 | 1563 | ctx->zd_vrf_id = re->vrf_id; |
0f461727 MS |
1564 | ctx->u.rinfo.zd_mtu = re->mtu; |
1565 | ctx->u.rinfo.zd_nexthop_mtu = re->nexthop_mtu; | |
1566 | ctx->u.rinfo.zd_instance = re->instance; | |
1567 | ctx->u.rinfo.zd_tag = re->tag; | |
1568 | ctx->u.rinfo.zd_old_tag = re->tag; | |
1569 | ctx->u.rinfo.zd_distance = re->distance; | |
7cdb1a84 MS |
1570 | |
1571 | table = srcdest_rnode_table(rn); | |
1572 | info = table->info; | |
1573 | ||
0f461727 MS |
1574 | ctx->u.rinfo.zd_afi = info->afi; |
1575 | ctx->u.rinfo.zd_safi = info->safi; | |
7cdb1a84 | 1576 | |
7cdb1a84 | 1577 | /* Copy nexthops; recursive info is included too */ |
0eb97b86 | 1578 | copy_nexthops(&(ctx->u.rinfo.zd_ng.nexthop), |
c415d895 | 1579 | re->nhe->nhg.nexthop, NULL); |
1d48702e MS |
1580 | ctx->u.rinfo.zd_nhg_id = re->nhe->id; |
1581 | ||
1582 | /* Copy backup nexthop info, if present */ | |
1583 | if (re->nhe->backup_info && re->nhe->backup_info->nhe) { | |
1584 | copy_nexthops(&(ctx->u.rinfo.backup_ng.nexthop), | |
1585 | re->nhe->backup_info->nhe->nhg.nexthop, NULL); | |
1586 | } | |
7cdb1a84 | 1587 | |
f2a0ba3a RZ |
1588 | /* |
1589 | * Ensure that the dplane nexthops' flags are clear and copy | |
1590 | * encapsulation information. | |
1591 | */ | |
1592 | for (ALL_NEXTHOPS(ctx->u.rinfo.zd_ng, nexthop)) { | |
f183e380 | 1593 | UNSET_FLAG(nexthop->flags, NEXTHOP_FLAG_FIB); |
f183e380 | 1594 | |
f2a0ba3a RZ |
1595 | /* Check for available encapsulations. */ |
1596 | if (!CHECK_FLAG(re->flags, ZEBRA_FLAG_EVPN_ROUTE)) | |
1597 | continue; | |
1598 | ||
1599 | zl3vni = zl3vni_from_vrf(nexthop->vrf_id); | |
1600 | if (zl3vni && is_l3vni_oper_up(zl3vni)) { | |
1601 | nexthop->nh_encap_type = NET_VXLAN; | |
1602 | nexthop->nh_encap.vni = zl3vni->vni; | |
1603 | } | |
1604 | } | |
1605 | ||
cf363e1b MS |
1606 | /* Don't need some info when capturing a system notification */ |
1607 | if (op == DPLANE_OP_SYS_ROUTE_ADD || | |
1608 | op == DPLANE_OP_SYS_ROUTE_DELETE) { | |
1609 | ret = AOK; | |
1610 | goto done; | |
1611 | } | |
1612 | ||
1613 | /* Extract ns info - can't use pointers to 'core' structs */ | |
1614 | zvrf = vrf_info_lookup(re->vrf_id); | |
1615 | zns = zvrf->zns; | |
1616 | dplane_ctx_ns_init(ctx, zns, (op == DPLANE_OP_ROUTE_UPDATE)); | |
1617 | ||
6df59152 | 1618 | #ifdef HAVE_NETLINK |
f924db49 | 1619 | { |
1d48702e | 1620 | struct nhg_hash_entry *nhe = zebra_nhg_resolve(re->nhe); |
6df59152 | 1621 | |
ae9bfa06 | 1622 | ctx->u.rinfo.nhe.id = nhe->id; |
6df59152 | 1623 | /* |
ae9bfa06 SW |
1624 | * Check if the nhe is installed/queued before doing anything |
1625 | * with this route. | |
08c51a38 SW |
1626 | * |
1627 | * If its a delete we only use the prefix anyway, so this only | |
1628 | * matters for INSTALL/UPDATE. | |
6df59152 | 1629 | */ |
08c51a38 SW |
1630 | if (((op == DPLANE_OP_ROUTE_INSTALL) |
1631 | || (op == DPLANE_OP_ROUTE_UPDATE)) | |
1632 | && !CHECK_FLAG(nhe->flags, NEXTHOP_GROUP_INSTALLED) | |
ae9bfa06 | 1633 | && !CHECK_FLAG(nhe->flags, NEXTHOP_GROUP_QUEUED)) { |
6df59152 SW |
1634 | ret = ENOENT; |
1635 | goto done; | |
1636 | } | |
98cda54a | 1637 | } |
6df59152 | 1638 | #endif /* HAVE_NETLINK */ |
de3f5488 | 1639 | |
7cdb1a84 MS |
1640 | /* Trying out the sequence number idea, so we can try to detect |
1641 | * when a result is stale. | |
1642 | */ | |
1485bbe7 | 1643 | re->dplane_sequence = zebra_router_get_next_sequence(); |
7cdb1a84 MS |
1644 | ctx->zd_seq = re->dplane_sequence; |
1645 | ||
1646 | ret = AOK; | |
1647 | ||
1648 | done: | |
1649 | return ret; | |
1650 | } | |
1651 | ||
f820d025 SW |
1652 | /** |
1653 | * dplane_ctx_nexthop_init() - Initialize a context block for a nexthop update | |
1654 | * | |
1655 | * @ctx: Dataplane context to init | |
1656 | * @op: Operation being performed | |
1657 | * @nhe: Nexthop group hash entry | |
1658 | * | |
1659 | * Return: Result status | |
1660 | */ | |
981ca597 RZ |
1661 | int dplane_ctx_nexthop_init(struct zebra_dplane_ctx *ctx, |
1662 | enum dplane_op_e op, | |
1663 | struct nhg_hash_entry *nhe) | |
f820d025 | 1664 | { |
a7df21c4 | 1665 | struct zebra_vrf *zvrf = NULL; |
8e401b25 | 1666 | struct zebra_ns *zns = NULL; |
f820d025 SW |
1667 | int ret = EINVAL; |
1668 | ||
1669 | if (!ctx || !nhe) | |
1670 | goto done; | |
1671 | ||
1672 | ctx->zd_op = op; | |
1673 | ctx->zd_status = ZEBRA_DPLANE_REQUEST_SUCCESS; | |
1674 | ||
1675 | /* Copy over nhe info */ | |
0c8215cb SW |
1676 | ctx->u.rinfo.nhe.id = nhe->id; |
1677 | ctx->u.rinfo.nhe.afi = nhe->afi; | |
1678 | ctx->u.rinfo.nhe.vrf_id = nhe->vrf_id; | |
38e40db1 | 1679 | ctx->u.rinfo.nhe.type = nhe->type; |
0c8215cb | 1680 | |
c415d895 | 1681 | nexthop_group_copy(&(ctx->u.rinfo.nhe.ng), &(nhe->nhg)); |
0c8215cb | 1682 | |
c415d895 | 1683 | /* If this is a group, convert it to a grp array of ids */ |
98cda54a SW |
1684 | if (!zebra_nhg_depends_is_empty(nhe) |
1685 | && !CHECK_FLAG(nhe->flags, NEXTHOP_GROUP_RECURSIVE)) | |
8dbc800f SW |
1686 | ctx->u.rinfo.nhe.nh_grp_count = zebra_nhg_nhe2grp( |
1687 | ctx->u.rinfo.nhe.nh_grp, nhe, MULTIPATH_NUM); | |
f820d025 | 1688 | |
a7df21c4 SW |
1689 | zvrf = vrf_info_lookup(nhe->vrf_id); |
1690 | ||
1691 | /* | |
1692 | * Fallback to default namespace if the vrf got ripped out from under | |
1693 | * us. | |
1694 | */ | |
1695 | zns = zvrf ? zvrf->zns : zebra_ns_lookup(NS_DEFAULT); | |
1909e63a | 1696 | |
2d3c57e6 SW |
1697 | /* |
1698 | * TODO: Might not need to mark this as an update, since | |
1699 | * it probably won't require two messages | |
1700 | */ | |
1909e63a SW |
1701 | dplane_ctx_ns_init(ctx, zns, (op == DPLANE_OP_NH_UPDATE)); |
1702 | ||
f820d025 SW |
1703 | ret = AOK; |
1704 | ||
1705 | done: | |
1706 | return ret; | |
1707 | } | |
1708 | ||
16c628de MS |
1709 | /* |
1710 | * Capture information for an LSP update in a dplane context. | |
1711 | */ | |
1712 | static int dplane_ctx_lsp_init(struct zebra_dplane_ctx *ctx, | |
1713 | enum dplane_op_e op, | |
1714 | zebra_lsp_t *lsp) | |
1715 | { | |
1716 | int ret = AOK; | |
1717 | zebra_nhlfe_t *nhlfe, *new_nhlfe; | |
1718 | ||
1719 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) | |
1720 | zlog_debug("init dplane ctx %s: in-label %u ecmp# %d", | |
1721 | dplane_op2str(op), lsp->ile.in_label, | |
1722 | lsp->num_ecmp); | |
1723 | ||
1724 | ctx->zd_op = op; | |
1725 | ctx->zd_status = ZEBRA_DPLANE_REQUEST_SUCCESS; | |
1726 | ||
1727 | /* Capture namespace info */ | |
1728 | dplane_ctx_ns_init(ctx, zebra_ns_lookup(NS_DEFAULT), | |
1729 | (op == DPLANE_OP_LSP_UPDATE)); | |
1730 | ||
1731 | memset(&ctx->u.lsp, 0, sizeof(ctx->u.lsp)); | |
1732 | ||
1733 | ctx->u.lsp.ile = lsp->ile; | |
1734 | ctx->u.lsp.addr_family = lsp->addr_family; | |
1735 | ctx->u.lsp.num_ecmp = lsp->num_ecmp; | |
1736 | ctx->u.lsp.flags = lsp->flags; | |
1737 | ||
1738 | /* Copy source LSP's nhlfes, and capture 'best' nhlfe */ | |
1739 | for (nhlfe = lsp->nhlfe_list; nhlfe; nhlfe = nhlfe->next) { | |
1740 | /* Not sure if this is meaningful... */ | |
1741 | if (nhlfe->nexthop == NULL) | |
1742 | continue; | |
1743 | ||
1744 | new_nhlfe = | |
1745 | zebra_mpls_lsp_add_nhlfe( | |
1746 | &(ctx->u.lsp), | |
1747 | nhlfe->type, | |
1748 | nhlfe->nexthop->type, | |
1749 | &(nhlfe->nexthop->gate), | |
1750 | nhlfe->nexthop->ifindex, | |
5065db0a RW |
1751 | nhlfe->nexthop->nh_label->num_labels, |
1752 | nhlfe->nexthop->nh_label->label); | |
16c628de MS |
1753 | |
1754 | if (new_nhlfe == NULL || new_nhlfe->nexthop == NULL) { | |
1755 | ret = ENOMEM; | |
1756 | break; | |
1757 | } | |
1758 | ||
1759 | /* Need to copy flags too */ | |
1760 | new_nhlfe->flags = nhlfe->flags; | |
1761 | new_nhlfe->nexthop->flags = nhlfe->nexthop->flags; | |
1762 | ||
1763 | if (nhlfe == lsp->best_nhlfe) | |
1764 | ctx->u.lsp.best_nhlfe = new_nhlfe; | |
1765 | } | |
1766 | ||
1767 | /* On error the ctx will be cleaned-up, so we don't need to | |
1768 | * deal with any allocated nhlfe or nexthop structs here. | |
1769 | */ | |
1770 | ||
1771 | return ret; | |
1772 | } | |
1773 | ||
97d8d05a MS |
1774 | /* |
1775 | * Capture information for an LSP update in a dplane context. | |
1776 | */ | |
1777 | static int dplane_ctx_pw_init(struct zebra_dplane_ctx *ctx, | |
1778 | enum dplane_op_e op, | |
1779 | struct zebra_pw *pw) | |
1780 | { | |
09cd307c MS |
1781 | struct prefix p; |
1782 | afi_t afi; | |
1783 | struct route_table *table; | |
1784 | struct route_node *rn; | |
1785 | struct route_entry *re; | |
1786 | ||
97d8d05a MS |
1787 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) |
1788 | zlog_debug("init dplane ctx %s: pw '%s', loc %u, rem %u", | |
1789 | dplane_op2str(op), pw->ifname, pw->local_label, | |
1790 | pw->remote_label); | |
1791 | ||
1792 | ctx->zd_op = op; | |
1793 | ctx->zd_status = ZEBRA_DPLANE_REQUEST_SUCCESS; | |
1794 | ||
1795 | /* Capture namespace info: no netlink support as of 12/18, | |
1796 | * but just in case... | |
1797 | */ | |
1798 | dplane_ctx_ns_init(ctx, zebra_ns_lookup(NS_DEFAULT), false); | |
1799 | ||
1800 | memset(&ctx->u.pw, 0, sizeof(ctx->u.pw)); | |
1801 | ||
1802 | /* This name appears to be c-string, so we use string copy. */ | |
7c7ef4a8 | 1803 | strlcpy(ctx->zd_ifname, pw->ifname, sizeof(ctx->zd_ifname)); |
16d69787 | 1804 | |
9bd9717b | 1805 | ctx->zd_vrf_id = pw->vrf_id; |
7c7ef4a8 | 1806 | ctx->zd_ifindex = pw->ifindex; |
97d8d05a MS |
1807 | ctx->u.pw.type = pw->type; |
1808 | ctx->u.pw.af = pw->af; | |
1809 | ctx->u.pw.local_label = pw->local_label; | |
1810 | ctx->u.pw.remote_label = pw->remote_label; | |
1811 | ctx->u.pw.flags = pw->flags; | |
1812 | ||
16d69787 | 1813 | ctx->u.pw.dest = pw->nexthop; |
97d8d05a MS |
1814 | |
1815 | ctx->u.pw.fields = pw->data; | |
1816 | ||
09cd307c MS |
1817 | /* Capture nexthop info for the pw destination. We need to look |
1818 | * up and use zebra datastructs, but we're running in the zebra | |
1819 | * pthread here so that should be ok. | |
1820 | */ | |
1821 | memcpy(&p.u, &pw->nexthop, sizeof(pw->nexthop)); | |
1822 | p.family = pw->af; | |
1823 | p.prefixlen = ((pw->af == AF_INET) ? | |
1824 | IPV4_MAX_PREFIXLEN : IPV6_MAX_PREFIXLEN); | |
1825 | ||
1826 | afi = (pw->af == AF_INET) ? AFI_IP : AFI_IP6; | |
1827 | table = zebra_vrf_table(afi, SAFI_UNICAST, pw->vrf_id); | |
1828 | if (table) { | |
1829 | rn = route_node_match(table, &p); | |
1830 | if (rn) { | |
1831 | RNODE_FOREACH_RE(rn, re) { | |
1832 | if (CHECK_FLAG(re->flags, ZEBRA_FLAG_SELECTED)) | |
1833 | break; | |
1834 | } | |
1835 | ||
1836 | if (re) | |
1837 | copy_nexthops(&(ctx->u.pw.nhg.nexthop), | |
c415d895 | 1838 | re->nhe->nhg.nexthop, NULL); |
09cd307c MS |
1839 | |
1840 | route_unlock_node(rn); | |
1841 | } | |
1842 | } | |
1843 | ||
9f2d0354 | 1844 | return AOK; |
97d8d05a MS |
1845 | } |
1846 | ||
7cdb1a84 | 1847 | /* |
3fe4ccc4 | 1848 | * Enqueue a new update, |
16c628de | 1849 | * and ensure an event is active for the dataplane pthread. |
7cdb1a84 | 1850 | */ |
3fe4ccc4 | 1851 | static int dplane_update_enqueue(struct zebra_dplane_ctx *ctx) |
7cdb1a84 MS |
1852 | { |
1853 | int ret = EINVAL; | |
91f16812 | 1854 | uint32_t high, curr; |
7cdb1a84 | 1855 | |
16c628de | 1856 | /* Enqueue for processing by the dataplane pthread */ |
7cdb1a84 MS |
1857 | DPLANE_LOCK(); |
1858 | { | |
3fe4ccc4 | 1859 | TAILQ_INSERT_TAIL(&zdplane_info.dg_update_ctx_q, ctx, |
25779064 | 1860 | zd_q_entries); |
7cdb1a84 MS |
1861 | } |
1862 | DPLANE_UNLOCK(); | |
1863 | ||
e07e9549 MS |
1864 | curr = atomic_add_fetch_explicit( |
1865 | #ifdef __clang__ | |
1866 | /* TODO -- issue with the clang atomic/intrinsics currently; | |
1867 | * casting away the 'Atomic'-ness of the variable works. | |
1868 | */ | |
1869 | (uint32_t *)&(zdplane_info.dg_routes_queued), | |
1870 | #else | |
1871 | &(zdplane_info.dg_routes_queued), | |
1872 | #endif | |
1873 | 1, memory_order_seq_cst); | |
91f16812 MS |
1874 | |
1875 | /* Maybe update high-water counter also */ | |
1876 | high = atomic_load_explicit(&zdplane_info.dg_routes_queued_max, | |
1877 | memory_order_seq_cst); | |
1878 | while (high < curr) { | |
1879 | if (atomic_compare_exchange_weak_explicit( | |
1880 | &zdplane_info.dg_routes_queued_max, | |
1881 | &high, curr, | |
1882 | memory_order_seq_cst, | |
1883 | memory_order_seq_cst)) | |
1884 | break; | |
1885 | } | |
1886 | ||
7cdb1a84 | 1887 | /* Ensure that an event for the dataplane thread is active */ |
c831033f | 1888 | ret = dplane_provider_work_ready(); |
7cdb1a84 | 1889 | |
5709131c | 1890 | return ret; |
7cdb1a84 MS |
1891 | } |
1892 | ||
7cdb1a84 MS |
1893 | /* |
1894 | * Utility that prepares a route update and enqueues it for processing | |
1895 | */ | |
655d681a MS |
1896 | static enum zebra_dplane_result |
1897 | dplane_route_update_internal(struct route_node *rn, | |
1898 | struct route_entry *re, | |
1899 | struct route_entry *old_re, | |
5709131c | 1900 | enum dplane_op_e op) |
7cdb1a84 | 1901 | { |
655d681a | 1902 | enum zebra_dplane_result result = ZEBRA_DPLANE_REQUEST_FAILURE; |
7cdb1a84 | 1903 | int ret = EINVAL; |
25779064 | 1904 | struct zebra_dplane_ctx *ctx = NULL; |
7cdb1a84 MS |
1905 | |
1906 | /* Obtain context block */ | |
1907 | ctx = dplane_ctx_alloc(); | |
7cdb1a84 MS |
1908 | |
1909 | /* Init context with info from zebra data structs */ | |
1910 | ret = dplane_ctx_route_init(ctx, op, rn, re); | |
1911 | if (ret == AOK) { | |
1912 | /* Capture some extra info for update case | |
1913 | * where there's a different 'old' route. | |
1914 | */ | |
b8e0423d MS |
1915 | if ((op == DPLANE_OP_ROUTE_UPDATE) && |
1916 | old_re && (old_re != re)) { | |
7cdb1a84 MS |
1917 | ctx->zd_is_update = true; |
1918 | ||
1485bbe7 DS |
1919 | old_re->dplane_sequence = |
1920 | zebra_router_get_next_sequence(); | |
7cdb1a84 MS |
1921 | ctx->zd_old_seq = old_re->dplane_sequence; |
1922 | ||
0f461727 MS |
1923 | ctx->u.rinfo.zd_old_tag = old_re->tag; |
1924 | ctx->u.rinfo.zd_old_type = old_re->type; | |
1925 | ctx->u.rinfo.zd_old_instance = old_re->instance; | |
1926 | ctx->u.rinfo.zd_old_distance = old_re->distance; | |
1927 | ctx->u.rinfo.zd_old_metric = old_re->metric; | |
01ce7cba MS |
1928 | |
1929 | #ifndef HAVE_NETLINK | |
f183e380 MS |
1930 | /* For bsd, capture previous re's nexthops too, sigh. |
1931 | * We'll need these to do per-nexthop deletes. | |
1932 | */ | |
0f461727 | 1933 | copy_nexthops(&(ctx->u.rinfo.zd_old_ng.nexthop), |
c415d895 | 1934 | old_re->nhe->nhg.nexthop, NULL); |
1d48702e MS |
1935 | |
1936 | if (zebra_nhg_get_backup_nhg(old_re->nhe) != NULL) { | |
1937 | struct nexthop_group *nhg; | |
1938 | struct nexthop **nh; | |
1939 | ||
1940 | nhg = zebra_nhg_get_backup_nhg(old_re->nhe); | |
1941 | nh = &(ctx->u.rinfo.old_backup_ng.nexthop); | |
1942 | ||
1943 | if (nhg->nexthop) | |
1944 | copy_nexthops(nh, nhg->nexthop, NULL); | |
1945 | } | |
01ce7cba | 1946 | #endif /* !HAVE_NETLINK */ |
7cdb1a84 MS |
1947 | } |
1948 | ||
1949 | /* Enqueue context for processing */ | |
3fe4ccc4 | 1950 | ret = dplane_update_enqueue(ctx); |
7cdb1a84 MS |
1951 | } |
1952 | ||
91f16812 | 1953 | /* Update counter */ |
25779064 | 1954 | atomic_fetch_add_explicit(&zdplane_info.dg_routes_in, 1, |
1d11b21f MS |
1955 | memory_order_relaxed); |
1956 | ||
91f16812 | 1957 | if (ret == AOK) |
655d681a | 1958 | result = ZEBRA_DPLANE_REQUEST_QUEUED; |
16c628de | 1959 | else { |
6df59152 SW |
1960 | if (ret == ENOENT) |
1961 | result = ZEBRA_DPLANE_REQUEST_SUCCESS; | |
1962 | else | |
1963 | atomic_fetch_add_explicit(&zdplane_info.dg_route_errors, | |
1964 | 1, memory_order_relaxed); | |
16c628de MS |
1965 | if (ctx) |
1966 | dplane_ctx_free(&ctx); | |
1d11b21f | 1967 | } |
7cdb1a84 | 1968 | |
5709131c | 1969 | return result; |
7cdb1a84 MS |
1970 | } |
1971 | ||
f820d025 SW |
1972 | /** |
1973 | * dplane_nexthop_update_internal() - Helper for enqueuing nexthop changes | |
1974 | * | |
1975 | * @nhe: Nexthop group hash entry where the change occured | |
1976 | * @op: The operation to be enqued | |
1977 | * | |
1978 | * Return: Result of the change | |
1979 | */ | |
1980 | static enum zebra_dplane_result | |
1981 | dplane_nexthop_update_internal(struct nhg_hash_entry *nhe, enum dplane_op_e op) | |
1982 | { | |
1983 | enum zebra_dplane_result result = ZEBRA_DPLANE_REQUEST_FAILURE; | |
1984 | int ret = EINVAL; | |
1985 | struct zebra_dplane_ctx *ctx = NULL; | |
1986 | ||
1987 | /* Obtain context block */ | |
1988 | ctx = dplane_ctx_alloc(); | |
1989 | if (!ctx) { | |
1990 | ret = ENOMEM; | |
1991 | goto done; | |
1992 | } | |
1993 | ||
1994 | ret = dplane_ctx_nexthop_init(ctx, op, nhe); | |
2d3c57e6 | 1995 | if (ret == AOK) |
f820d025 | 1996 | ret = dplane_update_enqueue(ctx); |
2d3c57e6 | 1997 | |
f820d025 SW |
1998 | done: |
1999 | /* Update counter */ | |
2000 | atomic_fetch_add_explicit(&zdplane_info.dg_nexthops_in, 1, | |
2001 | memory_order_relaxed); | |
2002 | ||
2003 | if (ret == AOK) | |
2004 | result = ZEBRA_DPLANE_REQUEST_QUEUED; | |
2005 | else { | |
81505946 SW |
2006 | atomic_fetch_add_explicit(&zdplane_info.dg_nexthop_errors, 1, |
2007 | memory_order_relaxed); | |
f820d025 SW |
2008 | if (ctx) |
2009 | dplane_ctx_free(&ctx); | |
2010 | } | |
2011 | ||
2012 | return result; | |
2013 | } | |
2014 | ||
7cdb1a84 MS |
2015 | /* |
2016 | * Enqueue a route 'add' for the dataplane. | |
2017 | */ | |
655d681a MS |
2018 | enum zebra_dplane_result dplane_route_add(struct route_node *rn, |
2019 | struct route_entry *re) | |
7cdb1a84 | 2020 | { |
655d681a | 2021 | enum zebra_dplane_result ret = ZEBRA_DPLANE_REQUEST_FAILURE; |
7cdb1a84 | 2022 | |
5709131c | 2023 | if (rn == NULL || re == NULL) |
7cdb1a84 | 2024 | goto done; |
7cdb1a84 MS |
2025 | |
2026 | ret = dplane_route_update_internal(rn, re, NULL, | |
2027 | DPLANE_OP_ROUTE_INSTALL); | |
2028 | ||
2029 | done: | |
5709131c | 2030 | return ret; |
7cdb1a84 MS |
2031 | } |
2032 | ||
2033 | /* | |
2034 | * Enqueue a route update for the dataplane. | |
2035 | */ | |
655d681a MS |
2036 | enum zebra_dplane_result dplane_route_update(struct route_node *rn, |
2037 | struct route_entry *re, | |
2038 | struct route_entry *old_re) | |
7cdb1a84 | 2039 | { |
655d681a | 2040 | enum zebra_dplane_result ret = ZEBRA_DPLANE_REQUEST_FAILURE; |
7cdb1a84 | 2041 | |
5709131c | 2042 | if (rn == NULL || re == NULL) |
7cdb1a84 | 2043 | goto done; |
7cdb1a84 MS |
2044 | |
2045 | ret = dplane_route_update_internal(rn, re, old_re, | |
2046 | DPLANE_OP_ROUTE_UPDATE); | |
7cdb1a84 | 2047 | done: |
5709131c | 2048 | return ret; |
7cdb1a84 MS |
2049 | } |
2050 | ||
2051 | /* | |
2052 | * Enqueue a route removal for the dataplane. | |
2053 | */ | |
655d681a MS |
2054 | enum zebra_dplane_result dplane_route_delete(struct route_node *rn, |
2055 | struct route_entry *re) | |
7cdb1a84 | 2056 | { |
655d681a | 2057 | enum zebra_dplane_result ret = ZEBRA_DPLANE_REQUEST_FAILURE; |
7cdb1a84 | 2058 | |
5709131c | 2059 | if (rn == NULL || re == NULL) |
7cdb1a84 | 2060 | goto done; |
7cdb1a84 MS |
2061 | |
2062 | ret = dplane_route_update_internal(rn, re, NULL, | |
2063 | DPLANE_OP_ROUTE_DELETE); | |
2064 | ||
2065 | done: | |
5709131c | 2066 | return ret; |
7cdb1a84 MS |
2067 | } |
2068 | ||
cf363e1b MS |
2069 | /* |
2070 | * Notify the dplane when system/connected routes change. | |
2071 | */ | |
2072 | enum zebra_dplane_result dplane_sys_route_add(struct route_node *rn, | |
2073 | struct route_entry *re) | |
2074 | { | |
2075 | enum zebra_dplane_result ret = ZEBRA_DPLANE_REQUEST_FAILURE; | |
2076 | ||
2077 | /* Ignore this event unless a provider plugin has requested it. */ | |
2078 | if (!zdplane_info.dg_sys_route_notifs) { | |
2079 | ret = ZEBRA_DPLANE_REQUEST_SUCCESS; | |
2080 | goto done; | |
2081 | } | |
2082 | ||
2083 | if (rn == NULL || re == NULL) | |
2084 | goto done; | |
2085 | ||
2086 | ret = dplane_route_update_internal(rn, re, NULL, | |
2087 | DPLANE_OP_SYS_ROUTE_ADD); | |
2088 | ||
2089 | done: | |
2090 | return ret; | |
2091 | } | |
2092 | ||
2093 | /* | |
2094 | * Notify the dplane when system/connected routes are deleted. | |
2095 | */ | |
2096 | enum zebra_dplane_result dplane_sys_route_del(struct route_node *rn, | |
2097 | struct route_entry *re) | |
2098 | { | |
2099 | enum zebra_dplane_result ret = ZEBRA_DPLANE_REQUEST_FAILURE; | |
2100 | ||
2101 | /* Ignore this event unless a provider plugin has requested it. */ | |
2102 | if (!zdplane_info.dg_sys_route_notifs) { | |
2103 | ret = ZEBRA_DPLANE_REQUEST_SUCCESS; | |
2104 | goto done; | |
2105 | } | |
2106 | ||
2107 | if (rn == NULL || re == NULL) | |
2108 | goto done; | |
2109 | ||
2110 | ret = dplane_route_update_internal(rn, re, NULL, | |
2111 | DPLANE_OP_SYS_ROUTE_DELETE); | |
2112 | ||
2113 | done: | |
2114 | return ret; | |
2115 | } | |
2116 | ||
188a00e0 MS |
2117 | /* |
2118 | * Update from an async notification, to bring other fibs up-to-date. | |
2119 | */ | |
2120 | enum zebra_dplane_result | |
2121 | dplane_route_notif_update(struct route_node *rn, | |
2122 | struct route_entry *re, | |
2123 | enum dplane_op_e op, | |
2124 | struct zebra_dplane_ctx *ctx) | |
2125 | { | |
2126 | enum zebra_dplane_result ret = ZEBRA_DPLANE_REQUEST_FAILURE; | |
2127 | struct zebra_dplane_ctx *new_ctx = NULL; | |
2128 | struct nexthop *nexthop; | |
2129 | ||
2130 | if (rn == NULL || re == NULL) | |
2131 | goto done; | |
2132 | ||
2133 | new_ctx = dplane_ctx_alloc(); | |
2134 | if (new_ctx == NULL) | |
2135 | goto done; | |
2136 | ||
2137 | /* Init context with info from zebra data structs */ | |
2138 | dplane_ctx_route_init(new_ctx, op, rn, re); | |
2139 | ||
2140 | /* For add/update, need to adjust the nexthops so that we match | |
2141 | * the notification state, which may not be the route-entry/RIB | |
2142 | * state. | |
2143 | */ | |
2144 | if (op == DPLANE_OP_ROUTE_UPDATE || | |
2145 | op == DPLANE_OP_ROUTE_INSTALL) { | |
2146 | ||
2147 | nexthops_free(new_ctx->u.rinfo.zd_ng.nexthop); | |
2148 | new_ctx->u.rinfo.zd_ng.nexthop = NULL; | |
2149 | ||
2150 | copy_nexthops(&(new_ctx->u.rinfo.zd_ng.nexthop), | |
2151 | (rib_active_nhg(re))->nexthop, NULL); | |
2152 | ||
2153 | for (ALL_NEXTHOPS(new_ctx->u.rinfo.zd_ng, nexthop)) | |
2154 | UNSET_FLAG(nexthop->flags, NEXTHOP_FLAG_FIB); | |
2155 | ||
2156 | } | |
2157 | ||
2158 | /* Capture info about the source of the notification, in 'ctx' */ | |
2159 | dplane_ctx_set_notif_provider(new_ctx, | |
2160 | dplane_ctx_get_notif_provider(ctx)); | |
2161 | ||
3fe4ccc4 | 2162 | dplane_update_enqueue(new_ctx); |
188a00e0 MS |
2163 | |
2164 | ret = ZEBRA_DPLANE_REQUEST_QUEUED; | |
2165 | ||
2166 | done: | |
2167 | return ret; | |
2168 | } | |
2169 | ||
f820d025 SW |
2170 | /* |
2171 | * Enqueue a nexthop add for the dataplane. | |
2172 | */ | |
2173 | enum zebra_dplane_result dplane_nexthop_add(struct nhg_hash_entry *nhe) | |
2174 | { | |
2175 | enum zebra_dplane_result ret = ZEBRA_DPLANE_REQUEST_FAILURE; | |
2176 | ||
2177 | if (nhe) | |
2178 | ret = dplane_nexthop_update_internal(nhe, DPLANE_OP_NH_INSTALL); | |
2179 | return ret; | |
2180 | } | |
2181 | ||
2182 | /* | |
2183 | * Enqueue a nexthop update for the dataplane. | |
81505946 SW |
2184 | * |
2185 | * Might not need this func since zebra's nexthop objects should be immutable? | |
f820d025 SW |
2186 | */ |
2187 | enum zebra_dplane_result dplane_nexthop_update(struct nhg_hash_entry *nhe) | |
2188 | { | |
2189 | enum zebra_dplane_result ret = ZEBRA_DPLANE_REQUEST_FAILURE; | |
2190 | ||
2191 | if (nhe) | |
2192 | ret = dplane_nexthop_update_internal(nhe, DPLANE_OP_NH_UPDATE); | |
2193 | return ret; | |
2194 | } | |
2195 | ||
2196 | /* | |
2197 | * Enqueue a nexthop removal for the dataplane. | |
2198 | */ | |
2199 | enum zebra_dplane_result dplane_nexthop_delete(struct nhg_hash_entry *nhe) | |
2200 | { | |
2201 | enum zebra_dplane_result ret = ZEBRA_DPLANE_REQUEST_FAILURE; | |
2202 | ||
2203 | if (nhe) | |
2204 | ret = dplane_nexthop_update_internal(nhe, DPLANE_OP_NH_DELETE); | |
2205 | ||
2206 | return ret; | |
2207 | } | |
2208 | ||
16c628de MS |
2209 | /* |
2210 | * Enqueue LSP add for the dataplane. | |
2211 | */ | |
2212 | enum zebra_dplane_result dplane_lsp_add(zebra_lsp_t *lsp) | |
2213 | { | |
2214 | enum zebra_dplane_result ret = | |
2215 | lsp_update_internal(lsp, DPLANE_OP_LSP_INSTALL); | |
2216 | ||
2217 | return ret; | |
2218 | } | |
2219 | ||
2220 | /* | |
2221 | * Enqueue LSP update for the dataplane. | |
2222 | */ | |
2223 | enum zebra_dplane_result dplane_lsp_update(zebra_lsp_t *lsp) | |
2224 | { | |
2225 | enum zebra_dplane_result ret = | |
2226 | lsp_update_internal(lsp, DPLANE_OP_LSP_UPDATE); | |
2227 | ||
2228 | return ret; | |
2229 | } | |
2230 | ||
2231 | /* | |
2232 | * Enqueue LSP delete for the dataplane. | |
2233 | */ | |
2234 | enum zebra_dplane_result dplane_lsp_delete(zebra_lsp_t *lsp) | |
2235 | { | |
2236 | enum zebra_dplane_result ret = | |
2237 | lsp_update_internal(lsp, DPLANE_OP_LSP_DELETE); | |
2238 | ||
2239 | return ret; | |
2240 | } | |
2241 | ||
188a00e0 MS |
2242 | /* Update or un-install resulting from an async notification */ |
2243 | enum zebra_dplane_result | |
2244 | dplane_lsp_notif_update(zebra_lsp_t *lsp, | |
2245 | enum dplane_op_e op, | |
2246 | struct zebra_dplane_ctx *notif_ctx) | |
2247 | { | |
2248 | enum zebra_dplane_result result = ZEBRA_DPLANE_REQUEST_FAILURE; | |
2249 | int ret = EINVAL; | |
2250 | struct zebra_dplane_ctx *ctx = NULL; | |
2251 | ||
2252 | /* Obtain context block */ | |
2253 | ctx = dplane_ctx_alloc(); | |
2254 | if (ctx == NULL) { | |
2255 | ret = ENOMEM; | |
2256 | goto done; | |
2257 | } | |
2258 | ||
2259 | ret = dplane_ctx_lsp_init(ctx, op, lsp); | |
2260 | if (ret != AOK) | |
2261 | goto done; | |
2262 | ||
2263 | /* Capture info about the source of the notification */ | |
2264 | dplane_ctx_set_notif_provider( | |
2265 | ctx, | |
2266 | dplane_ctx_get_notif_provider(notif_ctx)); | |
2267 | ||
3fe4ccc4 | 2268 | ret = dplane_update_enqueue(ctx); |
188a00e0 MS |
2269 | |
2270 | done: | |
2271 | /* Update counter */ | |
2272 | atomic_fetch_add_explicit(&zdplane_info.dg_lsps_in, 1, | |
2273 | memory_order_relaxed); | |
2274 | ||
2275 | if (ret == AOK) | |
2276 | result = ZEBRA_DPLANE_REQUEST_QUEUED; | |
2277 | else { | |
2278 | atomic_fetch_add_explicit(&zdplane_info.dg_lsp_errors, 1, | |
2279 | memory_order_relaxed); | |
2280 | if (ctx) | |
2281 | dplane_ctx_free(&ctx); | |
2282 | } | |
2283 | return result; | |
2284 | } | |
2285 | ||
97d8d05a MS |
2286 | /* |
2287 | * Enqueue pseudowire install for the dataplane. | |
2288 | */ | |
2289 | enum zebra_dplane_result dplane_pw_install(struct zebra_pw *pw) | |
2290 | { | |
2291 | return pw_update_internal(pw, DPLANE_OP_PW_INSTALL); | |
2292 | } | |
2293 | ||
2294 | /* | |
2295 | * Enqueue pseudowire un-install for the dataplane. | |
2296 | */ | |
2297 | enum zebra_dplane_result dplane_pw_uninstall(struct zebra_pw *pw) | |
2298 | { | |
2299 | return pw_update_internal(pw, DPLANE_OP_PW_UNINSTALL); | |
2300 | } | |
2301 | ||
16c628de MS |
2302 | /* |
2303 | * Common internal LSP update utility | |
2304 | */ | |
2305 | static enum zebra_dplane_result lsp_update_internal(zebra_lsp_t *lsp, | |
2306 | enum dplane_op_e op) | |
2307 | { | |
2308 | enum zebra_dplane_result result = ZEBRA_DPLANE_REQUEST_FAILURE; | |
2309 | int ret = EINVAL; | |
2310 | struct zebra_dplane_ctx *ctx = NULL; | |
2311 | ||
2312 | /* Obtain context block */ | |
2313 | ctx = dplane_ctx_alloc(); | |
16c628de MS |
2314 | |
2315 | ret = dplane_ctx_lsp_init(ctx, op, lsp); | |
2316 | if (ret != AOK) | |
2317 | goto done; | |
2318 | ||
3fe4ccc4 | 2319 | ret = dplane_update_enqueue(ctx); |
16c628de MS |
2320 | |
2321 | done: | |
2322 | /* Update counter */ | |
2323 | atomic_fetch_add_explicit(&zdplane_info.dg_lsps_in, 1, | |
2324 | memory_order_relaxed); | |
2325 | ||
2326 | if (ret == AOK) | |
2327 | result = ZEBRA_DPLANE_REQUEST_QUEUED; | |
2328 | else { | |
2329 | atomic_fetch_add_explicit(&zdplane_info.dg_lsp_errors, 1, | |
2330 | memory_order_relaxed); | |
d8e479a3 | 2331 | dplane_ctx_free(&ctx); |
16c628de MS |
2332 | } |
2333 | ||
2334 | return result; | |
2335 | } | |
2336 | ||
97d8d05a MS |
2337 | /* |
2338 | * Internal, common handler for pseudowire updates. | |
2339 | */ | |
2340 | static enum zebra_dplane_result pw_update_internal(struct zebra_pw *pw, | |
2341 | enum dplane_op_e op) | |
2342 | { | |
2343 | enum zebra_dplane_result result = ZEBRA_DPLANE_REQUEST_FAILURE; | |
2344 | int ret; | |
2345 | struct zebra_dplane_ctx *ctx = NULL; | |
2346 | ||
2347 | ctx = dplane_ctx_alloc(); | |
97d8d05a MS |
2348 | |
2349 | ret = dplane_ctx_pw_init(ctx, op, pw); | |
2350 | if (ret != AOK) | |
2351 | goto done; | |
2352 | ||
3fe4ccc4 | 2353 | ret = dplane_update_enqueue(ctx); |
97d8d05a MS |
2354 | |
2355 | done: | |
2356 | /* Update counter */ | |
2357 | atomic_fetch_add_explicit(&zdplane_info.dg_pws_in, 1, | |
2358 | memory_order_relaxed); | |
2359 | ||
2360 | if (ret == AOK) | |
2361 | result = ZEBRA_DPLANE_REQUEST_QUEUED; | |
2362 | else { | |
2363 | atomic_fetch_add_explicit(&zdplane_info.dg_pw_errors, 1, | |
2364 | memory_order_relaxed); | |
d8e479a3 | 2365 | dplane_ctx_free(&ctx); |
97d8d05a MS |
2366 | } |
2367 | ||
2368 | return result; | |
2369 | } | |
2370 | ||
a4a4802a MS |
2371 | /* |
2372 | * Enqueue interface address add for the dataplane. | |
2373 | */ | |
2374 | enum zebra_dplane_result dplane_intf_addr_set(const struct interface *ifp, | |
2375 | const struct connected *ifc) | |
2376 | { | |
64168803 MS |
2377 | #if !defined(HAVE_NETLINK) && defined(HAVE_STRUCT_IFALIASREQ) |
2378 | /* Extra checks for this OS path. */ | |
2379 | ||
2380 | /* Don't configure PtP addresses on broadcast ifs or reverse */ | |
2381 | if (!(ifp->flags & IFF_POINTOPOINT) != !CONNECTED_PEER(ifc)) { | |
2382 | if (IS_ZEBRA_DEBUG_KERNEL || IS_ZEBRA_DEBUG_DPLANE) | |
2383 | zlog_debug("Failed to set intf addr: mismatch p2p and connected"); | |
2384 | ||
2385 | return ZEBRA_DPLANE_REQUEST_FAILURE; | |
2386 | } | |
2387 | ||
2388 | /* Ensure that no existing installed v4 route conflicts with | |
2389 | * the new interface prefix. This check must be done in the | |
2390 | * zebra pthread context, and any route delete (if needed) | |
2391 | * is enqueued before the interface address programming attempt. | |
2392 | */ | |
2393 | if (ifc->address->family == AF_INET) { | |
2394 | struct prefix_ipv4 *p; | |
2395 | ||
2396 | p = (struct prefix_ipv4 *)ifc->address; | |
a36898e7 | 2397 | rib_lookup_and_pushup(p, ifp->vrf_id); |
64168803 MS |
2398 | } |
2399 | #endif | |
2400 | ||
2401 | return intf_addr_update_internal(ifp, ifc, DPLANE_OP_ADDR_INSTALL); | |
a4a4802a MS |
2402 | } |
2403 | ||
2404 | /* | |
2405 | * Enqueue interface address remove/uninstall for the dataplane. | |
2406 | */ | |
2407 | enum zebra_dplane_result dplane_intf_addr_unset(const struct interface *ifp, | |
2408 | const struct connected *ifc) | |
2409 | { | |
64168803 MS |
2410 | return intf_addr_update_internal(ifp, ifc, DPLANE_OP_ADDR_UNINSTALL); |
2411 | } | |
2412 | ||
2413 | static enum zebra_dplane_result intf_addr_update_internal( | |
2414 | const struct interface *ifp, const struct connected *ifc, | |
2415 | enum dplane_op_e op) | |
2416 | { | |
2417 | enum zebra_dplane_result result = ZEBRA_DPLANE_REQUEST_FAILURE; | |
2418 | int ret = EINVAL; | |
2419 | struct zebra_dplane_ctx *ctx = NULL; | |
2420 | struct zebra_ns *zns; | |
2421 | ||
2422 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) { | |
2423 | char addr_str[PREFIX_STRLEN]; | |
2424 | ||
2425 | prefix2str(ifc->address, addr_str, sizeof(addr_str)); | |
2426 | ||
2427 | zlog_debug("init intf ctx %s: idx %d, addr %u:%s", | |
a36898e7 | 2428 | dplane_op2str(op), ifp->ifindex, ifp->vrf_id, |
64168803 MS |
2429 | addr_str); |
2430 | } | |
2431 | ||
2432 | ctx = dplane_ctx_alloc(); | |
64168803 MS |
2433 | |
2434 | ctx->zd_op = op; | |
2435 | ctx->zd_status = ZEBRA_DPLANE_REQUEST_SUCCESS; | |
a36898e7 | 2436 | ctx->zd_vrf_id = ifp->vrf_id; |
64168803 | 2437 | |
a36898e7 | 2438 | zns = zebra_ns_lookup(ifp->vrf_id); |
64168803 MS |
2439 | dplane_ctx_ns_init(ctx, zns, false); |
2440 | ||
2441 | /* Init the interface-addr-specific area */ | |
2442 | memset(&ctx->u.intf, 0, sizeof(ctx->u.intf)); | |
2443 | ||
7c7ef4a8 MS |
2444 | strlcpy(ctx->zd_ifname, ifp->name, sizeof(ctx->zd_ifname)); |
2445 | ctx->zd_ifindex = ifp->ifindex; | |
64168803 MS |
2446 | ctx->u.intf.prefix = *(ifc->address); |
2447 | ||
2448 | if (if_is_broadcast(ifp)) | |
2449 | ctx->u.intf.flags |= DPLANE_INTF_BROADCAST; | |
2450 | ||
2451 | if (CONNECTED_PEER(ifc)) { | |
2452 | ctx->u.intf.dest_prefix = *(ifc->destination); | |
2453 | ctx->u.intf.flags |= | |
2454 | (DPLANE_INTF_CONNECTED | DPLANE_INTF_HAS_DEST); | |
64168803 MS |
2455 | } |
2456 | ||
2457 | if (CHECK_FLAG(ifc->flags, ZEBRA_IFA_SECONDARY)) | |
2458 | ctx->u.intf.flags |= DPLANE_INTF_SECONDARY; | |
2459 | ||
2460 | if (ifc->label) { | |
2461 | size_t len; | |
2462 | ||
2463 | ctx->u.intf.flags |= DPLANE_INTF_HAS_LABEL; | |
2464 | ||
2465 | /* Use embedded buffer if it's adequate; else allocate. */ | |
2466 | len = strlen(ifc->label); | |
2467 | ||
2468 | if (len < sizeof(ctx->u.intf.label_buf)) { | |
b7b7bf31 | 2469 | strlcpy(ctx->u.intf.label_buf, ifc->label, |
64168803 MS |
2470 | sizeof(ctx->u.intf.label_buf)); |
2471 | ctx->u.intf.label = ctx->u.intf.label_buf; | |
2472 | } else { | |
2473 | ctx->u.intf.label = strdup(ifc->label); | |
2474 | } | |
2475 | } | |
2476 | ||
3fe4ccc4 | 2477 | ret = dplane_update_enqueue(ctx); |
64168803 | 2478 | |
64168803 MS |
2479 | /* Increment counter */ |
2480 | atomic_fetch_add_explicit(&zdplane_info.dg_intf_addrs_in, 1, | |
2481 | memory_order_relaxed); | |
2482 | ||
2483 | if (ret == AOK) | |
2484 | result = ZEBRA_DPLANE_REQUEST_QUEUED; | |
2485 | else { | |
2486 | /* Error counter */ | |
2487 | atomic_fetch_add_explicit(&zdplane_info.dg_intf_addr_errors, | |
2488 | 1, memory_order_relaxed); | |
d8e479a3 | 2489 | dplane_ctx_free(&ctx); |
64168803 MS |
2490 | } |
2491 | ||
2492 | return result; | |
a4a4802a MS |
2493 | } |
2494 | ||
7597ac7b MS |
2495 | /* |
2496 | * Enqueue vxlan/evpn mac add (or update). | |
2497 | */ | |
2498 | enum zebra_dplane_result dplane_mac_add(const struct interface *ifp, | |
478566d6 | 2499 | const struct interface *bridge_ifp, |
7597ac7b MS |
2500 | vlanid_t vid, |
2501 | const struct ethaddr *mac, | |
2502 | struct in_addr vtep_ip, | |
2503 | bool sticky) | |
2504 | { | |
2505 | enum zebra_dplane_result result; | |
2506 | ||
2507 | /* Use common helper api */ | |
f73a8467 MS |
2508 | result = mac_update_common(DPLANE_OP_MAC_INSTALL, ifp, bridge_ifp, |
2509 | vid, mac, vtep_ip, sticky); | |
7597ac7b MS |
2510 | return result; |
2511 | } | |
2512 | ||
2513 | /* | |
2514 | * Enqueue vxlan/evpn mac delete. | |
2515 | */ | |
2516 | enum zebra_dplane_result dplane_mac_del(const struct interface *ifp, | |
478566d6 | 2517 | const struct interface *bridge_ifp, |
7597ac7b MS |
2518 | vlanid_t vid, |
2519 | const struct ethaddr *mac, | |
2520 | struct in_addr vtep_ip) | |
2521 | { | |
2522 | enum zebra_dplane_result result; | |
2523 | ||
2524 | /* Use common helper api */ | |
f73a8467 MS |
2525 | result = mac_update_common(DPLANE_OP_MAC_DELETE, ifp, bridge_ifp, |
2526 | vid, mac, vtep_ip, false); | |
7597ac7b MS |
2527 | return result; |
2528 | } | |
2529 | ||
2530 | /* | |
f73a8467 MS |
2531 | * Public api to init an empty context - either newly-allocated or |
2532 | * reset/cleared - for a MAC update. | |
7597ac7b | 2533 | */ |
f73a8467 MS |
2534 | void dplane_mac_init(struct zebra_dplane_ctx *ctx, |
2535 | const struct interface *ifp, | |
2536 | const struct interface *br_ifp, | |
2537 | vlanid_t vid, | |
2538 | const struct ethaddr *mac, | |
2539 | struct in_addr vtep_ip, | |
2540 | bool sticky) | |
7597ac7b | 2541 | { |
7597ac7b MS |
2542 | struct zebra_ns *zns; |
2543 | ||
7597ac7b MS |
2544 | ctx->zd_status = ZEBRA_DPLANE_REQUEST_SUCCESS; |
2545 | ctx->zd_vrf_id = ifp->vrf_id; | |
2546 | ||
2547 | zns = zebra_ns_lookup(ifp->vrf_id); | |
2548 | dplane_ctx_ns_init(ctx, zns, false); | |
2549 | ||
2550 | strlcpy(ctx->zd_ifname, ifp->name, sizeof(ctx->zd_ifname)); | |
2551 | ctx->zd_ifindex = ifp->ifindex; | |
2552 | ||
2553 | /* Init the mac-specific data area */ | |
2554 | memset(&ctx->u.macinfo, 0, sizeof(ctx->u.macinfo)); | |
2555 | ||
478566d6 | 2556 | ctx->u.macinfo.br_ifindex = br_ifp->ifindex; |
7597ac7b MS |
2557 | ctx->u.macinfo.vtep_ip = vtep_ip; |
2558 | ctx->u.macinfo.mac = *mac; | |
2559 | ctx->u.macinfo.vid = vid; | |
2560 | ctx->u.macinfo.is_sticky = sticky; | |
f73a8467 MS |
2561 | } |
2562 | ||
2563 | /* | |
2564 | * Common helper api for MAC address/vxlan updates | |
2565 | */ | |
2566 | static enum zebra_dplane_result | |
2567 | mac_update_common(enum dplane_op_e op, | |
2568 | const struct interface *ifp, | |
2569 | const struct interface *br_ifp, | |
2570 | vlanid_t vid, | |
2571 | const struct ethaddr *mac, | |
2572 | struct in_addr vtep_ip, | |
2573 | bool sticky) | |
2574 | { | |
2575 | enum zebra_dplane_result result = ZEBRA_DPLANE_REQUEST_FAILURE; | |
2576 | int ret; | |
2577 | struct zebra_dplane_ctx *ctx = NULL; | |
2578 | ||
2579 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) { | |
2580 | char buf1[ETHER_ADDR_STRLEN], buf2[PREFIX_STRLEN]; | |
2581 | ||
2582 | zlog_debug("init mac ctx %s: mac %s, ifp %s, vtep %s", | |
2583 | dplane_op2str(op), | |
2584 | prefix_mac2str(mac, buf1, sizeof(buf1)), | |
2585 | ifp->name, | |
2586 | inet_ntop(AF_INET, &vtep_ip, buf2, sizeof(buf2))); | |
2587 | } | |
2588 | ||
2589 | ctx = dplane_ctx_alloc(); | |
2590 | ctx->zd_op = op; | |
2591 | ||
2592 | /* Common init for the ctx */ | |
2593 | dplane_mac_init(ctx, ifp, br_ifp, vid, mac, vtep_ip, sticky); | |
7597ac7b MS |
2594 | |
2595 | /* Enqueue for processing on the dplane pthread */ | |
2596 | ret = dplane_update_enqueue(ctx); | |
2597 | ||
2598 | /* Increment counter */ | |
2599 | atomic_fetch_add_explicit(&zdplane_info.dg_macs_in, 1, | |
2600 | memory_order_relaxed); | |
2601 | ||
2602 | if (ret == AOK) | |
2603 | result = ZEBRA_DPLANE_REQUEST_QUEUED; | |
2604 | else { | |
2605 | /* Error counter */ | |
2606 | atomic_fetch_add_explicit(&zdplane_info.dg_mac_errors, 1, | |
2607 | memory_order_relaxed); | |
2608 | dplane_ctx_free(&ctx); | |
2609 | } | |
2610 | ||
2611 | return result; | |
2612 | } | |
2613 | ||
931fa60c MS |
2614 | /* |
2615 | * Enqueue evpn neighbor add for the dataplane. | |
2616 | */ | |
2617 | enum zebra_dplane_result dplane_neigh_add(const struct interface *ifp, | |
2618 | const struct ipaddr *ip, | |
2619 | const struct ethaddr *mac, | |
2620 | uint32_t flags) | |
2621 | { | |
2622 | enum zebra_dplane_result result = ZEBRA_DPLANE_REQUEST_FAILURE; | |
2623 | ||
2624 | result = neigh_update_internal(DPLANE_OP_NEIGH_INSTALL, | |
4dd9d11c | 2625 | ifp, mac, ip, flags, DPLANE_NUD_NOARP); |
931fa60c MS |
2626 | |
2627 | return result; | |
2628 | } | |
2629 | ||
2630 | /* | |
2631 | * Enqueue evpn neighbor update for the dataplane. | |
2632 | */ | |
2633 | enum zebra_dplane_result dplane_neigh_update(const struct interface *ifp, | |
2634 | const struct ipaddr *ip, | |
2635 | const struct ethaddr *mac) | |
2636 | { | |
0bbd4ff4 | 2637 | enum zebra_dplane_result result; |
931fa60c MS |
2638 | |
2639 | result = neigh_update_internal(DPLANE_OP_NEIGH_UPDATE, | |
2640 | ifp, mac, ip, 0, DPLANE_NUD_PROBE); | |
2641 | ||
2642 | return result; | |
2643 | } | |
2644 | ||
2645 | /* | |
2646 | * Enqueue evpn neighbor delete for the dataplane. | |
2647 | */ | |
2648 | enum zebra_dplane_result dplane_neigh_delete(const struct interface *ifp, | |
2649 | const struct ipaddr *ip) | |
2650 | { | |
0bbd4ff4 | 2651 | enum zebra_dplane_result result; |
931fa60c MS |
2652 | |
2653 | result = neigh_update_internal(DPLANE_OP_NEIGH_DELETE, | |
2654 | ifp, NULL, ip, 0, 0); | |
2655 | ||
2656 | return result; | |
2657 | } | |
2658 | ||
0bbd4ff4 MS |
2659 | /* |
2660 | * Enqueue evpn VTEP add for the dataplane. | |
2661 | */ | |
2662 | enum zebra_dplane_result dplane_vtep_add(const struct interface *ifp, | |
2663 | const struct in_addr *ip, | |
2664 | vni_t vni) | |
2665 | { | |
2666 | enum zebra_dplane_result result; | |
2667 | struct ethaddr mac = { {0, 0, 0, 0, 0, 0} }; | |
2668 | struct ipaddr addr; | |
2669 | ||
2670 | if (IS_ZEBRA_DEBUG_VXLAN) | |
2671 | zlog_debug("Install %s into flood list for VNI %u intf %s(%u)", | |
2672 | inet_ntoa(*ip), vni, ifp->name, ifp->ifindex); | |
2673 | ||
2674 | SET_IPADDR_V4(&addr); | |
2675 | addr.ipaddr_v4 = *ip; | |
2676 | ||
2677 | result = neigh_update_internal(DPLANE_OP_VTEP_ADD, | |
2678 | ifp, &mac, &addr, 0, 0); | |
2679 | ||
2680 | return result; | |
2681 | } | |
2682 | ||
2683 | /* | |
2684 | * Enqueue evpn VTEP add for the dataplane. | |
2685 | */ | |
2686 | enum zebra_dplane_result dplane_vtep_delete(const struct interface *ifp, | |
2687 | const struct in_addr *ip, | |
2688 | vni_t vni) | |
2689 | { | |
2690 | enum zebra_dplane_result result; | |
2691 | struct ethaddr mac = { {0, 0, 0, 0, 0, 0} }; | |
2692 | struct ipaddr addr; | |
2693 | ||
2694 | if (IS_ZEBRA_DEBUG_VXLAN) | |
2695 | zlog_debug( | |
2696 | "Uninstall %s from flood list for VNI %u intf %s(%u)", | |
2697 | inet_ntoa(*ip), vni, ifp->name, ifp->ifindex); | |
2698 | ||
2699 | SET_IPADDR_V4(&addr); | |
2700 | addr.ipaddr_v4 = *ip; | |
2701 | ||
2702 | result = neigh_update_internal(DPLANE_OP_VTEP_DELETE, | |
2703 | ifp, &mac, &addr, 0, 0); | |
2704 | ||
2705 | return result; | |
2706 | } | |
2707 | ||
931fa60c MS |
2708 | /* |
2709 | * Common helper api for evpn neighbor updates | |
2710 | */ | |
2711 | static enum zebra_dplane_result | |
2712 | neigh_update_internal(enum dplane_op_e op, | |
2713 | const struct interface *ifp, | |
2714 | const struct ethaddr *mac, | |
2715 | const struct ipaddr *ip, | |
2716 | uint32_t flags, uint16_t state) | |
2717 | { | |
2718 | enum zebra_dplane_result result = ZEBRA_DPLANE_REQUEST_FAILURE; | |
2719 | int ret; | |
2720 | struct zebra_dplane_ctx *ctx = NULL; | |
2721 | struct zebra_ns *zns; | |
2722 | ||
2723 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) { | |
2724 | char buf1[ETHER_ADDR_STRLEN], buf2[PREFIX_STRLEN]; | |
2725 | ||
2726 | zlog_debug("init neigh ctx %s: ifp %s, mac %s, ip %s", | |
2727 | dplane_op2str(op), | |
2728 | prefix_mac2str(mac, buf1, sizeof(buf1)), | |
2729 | ifp->name, | |
2730 | ipaddr2str(ip, buf2, sizeof(buf2))); | |
2731 | } | |
2732 | ||
2733 | ctx = dplane_ctx_alloc(); | |
2734 | ||
2735 | ctx->zd_op = op; | |
2736 | ctx->zd_status = ZEBRA_DPLANE_REQUEST_SUCCESS; | |
2737 | ctx->zd_vrf_id = ifp->vrf_id; | |
2738 | ||
2739 | zns = zebra_ns_lookup(ifp->vrf_id); | |
2740 | dplane_ctx_ns_init(ctx, zns, false); | |
2741 | ||
2742 | strlcpy(ctx->zd_ifname, ifp->name, sizeof(ctx->zd_ifname)); | |
2743 | ctx->zd_ifindex = ifp->ifindex; | |
2744 | ||
2745 | /* Init the neighbor-specific data area */ | |
2746 | memset(&ctx->u.neigh, 0, sizeof(ctx->u.neigh)); | |
2747 | ||
2748 | ctx->u.neigh.ip_addr = *ip; | |
2749 | if (mac) | |
2750 | ctx->u.neigh.mac = *mac; | |
2751 | ctx->u.neigh.flags = flags; | |
2752 | ctx->u.neigh.state = state; | |
2753 | ||
2754 | /* Enqueue for processing on the dplane pthread */ | |
2755 | ret = dplane_update_enqueue(ctx); | |
2756 | ||
2757 | /* Increment counter */ | |
2758 | atomic_fetch_add_explicit(&zdplane_info.dg_neighs_in, 1, | |
2759 | memory_order_relaxed); | |
2760 | ||
2761 | if (ret == AOK) | |
2762 | result = ZEBRA_DPLANE_REQUEST_QUEUED; | |
2763 | else { | |
2764 | /* Error counter */ | |
2765 | atomic_fetch_add_explicit(&zdplane_info.dg_neigh_errors, 1, | |
2766 | memory_order_relaxed); | |
2767 | dplane_ctx_free(&ctx); | |
2768 | } | |
2769 | ||
2770 | return result; | |
2771 | } | |
2772 | ||
1d11b21f MS |
2773 | /* |
2774 | * Handler for 'show dplane' | |
2775 | */ | |
2776 | int dplane_show_helper(struct vty *vty, bool detailed) | |
2777 | { | |
16c628de MS |
2778 | uint64_t queued, queue_max, limit, errs, incoming, yields, |
2779 | other_errs; | |
1d11b21f | 2780 | |
4dfd7a02 | 2781 | /* Using atomics because counters are being changed in different |
c831033f | 2782 | * pthread contexts. |
4dfd7a02 | 2783 | */ |
25779064 | 2784 | incoming = atomic_load_explicit(&zdplane_info.dg_routes_in, |
1d11b21f | 2785 | memory_order_relaxed); |
91f16812 MS |
2786 | limit = atomic_load_explicit(&zdplane_info.dg_max_queued_updates, |
2787 | memory_order_relaxed); | |
25779064 | 2788 | queued = atomic_load_explicit(&zdplane_info.dg_routes_queued, |
1d11b21f | 2789 | memory_order_relaxed); |
25779064 | 2790 | queue_max = atomic_load_explicit(&zdplane_info.dg_routes_queued_max, |
4dfd7a02 | 2791 | memory_order_relaxed); |
25779064 | 2792 | errs = atomic_load_explicit(&zdplane_info.dg_route_errors, |
1d11b21f | 2793 | memory_order_relaxed); |
c831033f MS |
2794 | yields = atomic_load_explicit(&zdplane_info.dg_update_yields, |
2795 | memory_order_relaxed); | |
16c628de MS |
2796 | other_errs = atomic_load_explicit(&zdplane_info.dg_other_errors, |
2797 | memory_order_relaxed); | |
1d11b21f | 2798 | |
c831033f MS |
2799 | vty_out(vty, "Zebra dataplane:\nRoute updates: %"PRIu64"\n", |
2800 | incoming); | |
1d11b21f | 2801 | vty_out(vty, "Route update errors: %"PRIu64"\n", errs); |
16c628de | 2802 | vty_out(vty, "Other errors : %"PRIu64"\n", other_errs); |
91f16812 | 2803 | vty_out(vty, "Route update queue limit: %"PRIu64"\n", limit); |
1d11b21f | 2804 | vty_out(vty, "Route update queue depth: %"PRIu64"\n", queued); |
4dfd7a02 | 2805 | vty_out(vty, "Route update queue max: %"PRIu64"\n", queue_max); |
4280d91c MS |
2806 | vty_out(vty, "Dplane update yields: %"PRIu64"\n", yields); |
2807 | ||
2808 | incoming = atomic_load_explicit(&zdplane_info.dg_lsps_in, | |
2809 | memory_order_relaxed); | |
2810 | errs = atomic_load_explicit(&zdplane_info.dg_lsp_errors, | |
2811 | memory_order_relaxed); | |
2812 | vty_out(vty, "LSP updates: %"PRIu64"\n", incoming); | |
2813 | vty_out(vty, "LSP update errors: %"PRIu64"\n", errs); | |
2814 | ||
2815 | incoming = atomic_load_explicit(&zdplane_info.dg_pws_in, | |
2816 | memory_order_relaxed); | |
2817 | errs = atomic_load_explicit(&zdplane_info.dg_pw_errors, | |
2818 | memory_order_relaxed); | |
2819 | vty_out(vty, "PW updates: %"PRIu64"\n", incoming); | |
2820 | vty_out(vty, "PW update errors: %"PRIu64"\n", errs); | |
2821 | ||
2822 | incoming = atomic_load_explicit(&zdplane_info.dg_intf_addrs_in, | |
2823 | memory_order_relaxed); | |
2824 | errs = atomic_load_explicit(&zdplane_info.dg_intf_addr_errors, | |
2825 | memory_order_relaxed); | |
2826 | vty_out(vty, "Intf addr updates: %"PRIu64"\n", incoming); | |
2827 | vty_out(vty, "Intf addr errors: %"PRIu64"\n", errs); | |
2828 | ||
2829 | incoming = atomic_load_explicit(&zdplane_info.dg_macs_in, | |
2830 | memory_order_relaxed); | |
2831 | errs = atomic_load_explicit(&zdplane_info.dg_mac_errors, | |
2832 | memory_order_relaxed); | |
2833 | vty_out(vty, "EVPN MAC updates: %"PRIu64"\n", incoming); | |
2834 | vty_out(vty, "EVPN MAC errors: %"PRIu64"\n", errs); | |
1d11b21f | 2835 | |
931fa60c MS |
2836 | incoming = atomic_load_explicit(&zdplane_info.dg_neighs_in, |
2837 | memory_order_relaxed); | |
2838 | errs = atomic_load_explicit(&zdplane_info.dg_neigh_errors, | |
2839 | memory_order_relaxed); | |
2840 | vty_out(vty, "EVPN neigh updates: %"PRIu64"\n", incoming); | |
2841 | vty_out(vty, "EVPN neigh errors: %"PRIu64"\n", errs); | |
2842 | ||
1d11b21f MS |
2843 | return CMD_SUCCESS; |
2844 | } | |
2845 | ||
2846 | /* | |
2847 | * Handler for 'show dplane providers' | |
2848 | */ | |
2849 | int dplane_show_provs_helper(struct vty *vty, bool detailed) | |
2850 | { | |
c831033f MS |
2851 | struct zebra_dplane_provider *prov; |
2852 | uint64_t in, in_max, out, out_max; | |
2853 | ||
2854 | vty_out(vty, "Zebra dataplane providers:\n"); | |
2855 | ||
2856 | DPLANE_LOCK(); | |
2857 | prov = TAILQ_FIRST(&zdplane_info.dg_providers_q); | |
2858 | DPLANE_UNLOCK(); | |
2859 | ||
2860 | /* Show counters, useful info from each registered provider */ | |
2861 | while (prov) { | |
2862 | ||
2863 | in = atomic_load_explicit(&prov->dp_in_counter, | |
2864 | memory_order_relaxed); | |
2865 | in_max = atomic_load_explicit(&prov->dp_in_max, | |
2866 | memory_order_relaxed); | |
2867 | out = atomic_load_explicit(&prov->dp_out_counter, | |
2868 | memory_order_relaxed); | |
2869 | out_max = atomic_load_explicit(&prov->dp_out_max, | |
2870 | memory_order_relaxed); | |
2871 | ||
c9d17fe8 MS |
2872 | vty_out(vty, "%s (%u): in: %"PRIu64", q_max: %"PRIu64", " |
2873 | "out: %"PRIu64", q_max: %"PRIu64"\n", | |
c831033f MS |
2874 | prov->dp_name, prov->dp_id, in, in_max, out, out_max); |
2875 | ||
2876 | DPLANE_LOCK(); | |
2877 | prov = TAILQ_NEXT(prov, dp_prov_link); | |
2878 | DPLANE_UNLOCK(); | |
2879 | } | |
1d11b21f MS |
2880 | |
2881 | return CMD_SUCCESS; | |
2882 | } | |
2883 | ||
f26730e1 MS |
2884 | /* |
2885 | * Helper for 'show run' etc. | |
2886 | */ | |
2887 | int dplane_config_write_helper(struct vty *vty) | |
2888 | { | |
2889 | if (zdplane_info.dg_max_queued_updates != DPLANE_DEFAULT_MAX_QUEUED) | |
2890 | vty_out(vty, "zebra dplane limit %u\n", | |
2891 | zdplane_info.dg_max_queued_updates); | |
2892 | ||
2893 | return 0; | |
2894 | } | |
2895 | ||
b8e0423d MS |
2896 | /* |
2897 | * Provider registration | |
2898 | */ | |
2899 | int dplane_provider_register(const char *name, | |
c831033f MS |
2900 | enum dplane_provider_prio prio, |
2901 | int flags, | |
1dd4ea8a | 2902 | int (*start_fp)(struct zebra_dplane_provider *), |
4c206c8f MS |
2903 | int (*fp)(struct zebra_dplane_provider *), |
2904 | int (*fini_fp)(struct zebra_dplane_provider *, | |
2905 | bool early), | |
1ff8a248 MS |
2906 | void *data, |
2907 | struct zebra_dplane_provider **prov_p) | |
b8e0423d MS |
2908 | { |
2909 | int ret = 0; | |
6fb51ccb | 2910 | struct zebra_dplane_provider *p = NULL, *last; |
b8e0423d MS |
2911 | |
2912 | /* Validate */ | |
2913 | if (fp == NULL) { | |
2914 | ret = EINVAL; | |
2915 | goto done; | |
2916 | } | |
2917 | ||
2918 | if (prio <= DPLANE_PRIO_NONE || | |
1bcea841 | 2919 | prio > DPLANE_PRIO_LAST) { |
b8e0423d MS |
2920 | ret = EINVAL; |
2921 | goto done; | |
2922 | } | |
2923 | ||
2924 | /* Allocate and init new provider struct */ | |
25779064 | 2925 | p = XCALLOC(MTYPE_DP_PROV, sizeof(struct zebra_dplane_provider)); |
b8e0423d | 2926 | |
c831033f MS |
2927 | pthread_mutex_init(&(p->dp_mutex), NULL); |
2928 | TAILQ_INIT(&(p->dp_ctx_in_q)); | |
2929 | TAILQ_INIT(&(p->dp_ctx_out_q)); | |
b8e0423d | 2930 | |
932dbb4d | 2931 | p->dp_flags = flags; |
b8e0423d MS |
2932 | p->dp_priority = prio; |
2933 | p->dp_fp = fp; | |
1dd4ea8a | 2934 | p->dp_start = start_fp; |
18c37974 | 2935 | p->dp_fini = fini_fp; |
c831033f | 2936 | p->dp_data = data; |
18c37974 | 2937 | |
c831033f | 2938 | /* Lock - the dplane pthread may be running */ |
18c37974 | 2939 | DPLANE_LOCK(); |
b8e0423d | 2940 | |
25779064 | 2941 | p->dp_id = ++zdplane_info.dg_provider_id; |
b8e0423d | 2942 | |
c831033f MS |
2943 | if (name) |
2944 | strlcpy(p->dp_name, name, DPLANE_PROVIDER_NAMELEN); | |
2945 | else | |
2946 | snprintf(p->dp_name, DPLANE_PROVIDER_NAMELEN, | |
2947 | "provider-%u", p->dp_id); | |
2948 | ||
b8e0423d | 2949 | /* Insert into list ordered by priority */ |
c831033f | 2950 | TAILQ_FOREACH(last, &zdplane_info.dg_providers_q, dp_prov_link) { |
5709131c | 2951 | if (last->dp_priority > p->dp_priority) |
b8e0423d | 2952 | break; |
b8e0423d MS |
2953 | } |
2954 | ||
5709131c | 2955 | if (last) |
c831033f | 2956 | TAILQ_INSERT_BEFORE(last, p, dp_prov_link); |
5709131c | 2957 | else |
25779064 | 2958 | TAILQ_INSERT_TAIL(&zdplane_info.dg_providers_q, p, |
c831033f | 2959 | dp_prov_link); |
b8e0423d | 2960 | |
18c37974 MS |
2961 | /* And unlock */ |
2962 | DPLANE_UNLOCK(); | |
2963 | ||
c831033f MS |
2964 | if (IS_ZEBRA_DEBUG_DPLANE) |
2965 | zlog_debug("dplane: registered new provider '%s' (%u), prio %d", | |
2966 | p->dp_name, p->dp_id, p->dp_priority); | |
2967 | ||
b8e0423d | 2968 | done: |
1ff8a248 MS |
2969 | if (prov_p) |
2970 | *prov_p = p; | |
2971 | ||
5709131c | 2972 | return ret; |
b8e0423d MS |
2973 | } |
2974 | ||
c831033f MS |
2975 | /* Accessors for provider attributes */ |
2976 | const char *dplane_provider_get_name(const struct zebra_dplane_provider *prov) | |
2977 | { | |
2978 | return prov->dp_name; | |
2979 | } | |
2980 | ||
2981 | uint32_t dplane_provider_get_id(const struct zebra_dplane_provider *prov) | |
2982 | { | |
2983 | return prov->dp_id; | |
2984 | } | |
2985 | ||
2986 | void *dplane_provider_get_data(const struct zebra_dplane_provider *prov) | |
2987 | { | |
2988 | return prov->dp_data; | |
2989 | } | |
2990 | ||
2991 | int dplane_provider_get_work_limit(const struct zebra_dplane_provider *prov) | |
2992 | { | |
2993 | return zdplane_info.dg_updates_per_cycle; | |
2994 | } | |
2995 | ||
ad6aad4d MS |
2996 | /* Lock/unlock a provider's mutex - iff the provider was registered with |
2997 | * the THREADED flag. | |
2998 | */ | |
2999 | void dplane_provider_lock(struct zebra_dplane_provider *prov) | |
3000 | { | |
3001 | if (dplane_provider_is_threaded(prov)) | |
3002 | DPLANE_PROV_LOCK(prov); | |
3003 | } | |
3004 | ||
3005 | void dplane_provider_unlock(struct zebra_dplane_provider *prov) | |
3006 | { | |
3007 | if (dplane_provider_is_threaded(prov)) | |
3008 | DPLANE_PROV_UNLOCK(prov); | |
3009 | } | |
3010 | ||
c831033f MS |
3011 | /* |
3012 | * Dequeue and maintain associated counter | |
3013 | */ | |
3014 | struct zebra_dplane_ctx *dplane_provider_dequeue_in_ctx( | |
3015 | struct zebra_dplane_provider *prov) | |
3016 | { | |
3017 | struct zebra_dplane_ctx *ctx = NULL; | |
3018 | ||
ad6aad4d | 3019 | dplane_provider_lock(prov); |
c831033f MS |
3020 | |
3021 | ctx = TAILQ_FIRST(&(prov->dp_ctx_in_q)); | |
3022 | if (ctx) { | |
3023 | TAILQ_REMOVE(&(prov->dp_ctx_in_q), ctx, zd_q_entries); | |
c9d17fe8 MS |
3024 | |
3025 | atomic_fetch_sub_explicit(&prov->dp_in_queued, 1, | |
3026 | memory_order_relaxed); | |
c831033f MS |
3027 | } |
3028 | ||
ad6aad4d | 3029 | dplane_provider_unlock(prov); |
c831033f MS |
3030 | |
3031 | return ctx; | |
3032 | } | |
3033 | ||
3034 | /* | |
3035 | * Dequeue work to a list, return count | |
3036 | */ | |
3037 | int dplane_provider_dequeue_in_list(struct zebra_dplane_provider *prov, | |
3038 | struct dplane_ctx_q *listp) | |
3039 | { | |
3040 | int limit, ret; | |
3041 | struct zebra_dplane_ctx *ctx; | |
3042 | ||
3043 | limit = zdplane_info.dg_updates_per_cycle; | |
3044 | ||
ad6aad4d | 3045 | dplane_provider_lock(prov); |
c831033f MS |
3046 | |
3047 | for (ret = 0; ret < limit; ret++) { | |
3048 | ctx = TAILQ_FIRST(&(prov->dp_ctx_in_q)); | |
3049 | if (ctx) { | |
3050 | TAILQ_REMOVE(&(prov->dp_ctx_in_q), ctx, zd_q_entries); | |
3051 | ||
3052 | TAILQ_INSERT_TAIL(listp, ctx, zd_q_entries); | |
3053 | } else { | |
3054 | break; | |
3055 | } | |
3056 | } | |
3057 | ||
c9d17fe8 MS |
3058 | if (ret > 0) |
3059 | atomic_fetch_sub_explicit(&prov->dp_in_queued, ret, | |
3060 | memory_order_relaxed); | |
3061 | ||
ad6aad4d | 3062 | dplane_provider_unlock(prov); |
c831033f MS |
3063 | |
3064 | return ret; | |
3065 | } | |
3066 | ||
3067 | /* | |
3068 | * Enqueue and maintain associated counter | |
3069 | */ | |
3070 | void dplane_provider_enqueue_out_ctx(struct zebra_dplane_provider *prov, | |
3071 | struct zebra_dplane_ctx *ctx) | |
3072 | { | |
ad6aad4d | 3073 | dplane_provider_lock(prov); |
c831033f MS |
3074 | |
3075 | TAILQ_INSERT_TAIL(&(prov->dp_ctx_out_q), ctx, | |
3076 | zd_q_entries); | |
3077 | ||
ad6aad4d | 3078 | dplane_provider_unlock(prov); |
c831033f MS |
3079 | |
3080 | atomic_fetch_add_explicit(&(prov->dp_out_counter), 1, | |
3081 | memory_order_relaxed); | |
3082 | } | |
3083 | ||
62b8bb7a MS |
3084 | /* |
3085 | * Accessor for provider object | |
3086 | */ | |
c831033f MS |
3087 | bool dplane_provider_is_threaded(const struct zebra_dplane_provider *prov) |
3088 | { | |
3089 | return (prov->dp_flags & DPLANE_PROV_FLAG_THREADED); | |
3090 | } | |
3091 | ||
62b8bb7a MS |
3092 | /* |
3093 | * Internal helper that copies information from a zebra ns object; this is | |
3094 | * called in the zebra main pthread context as part of dplane ctx init. | |
3095 | */ | |
3096 | static void dplane_info_from_zns(struct zebra_dplane_info *ns_info, | |
3097 | struct zebra_ns *zns) | |
3098 | { | |
3099 | ns_info->ns_id = zns->ns_id; | |
3100 | ||
3101 | #if defined(HAVE_NETLINK) | |
3102 | ns_info->is_cmd = true; | |
3103 | ns_info->nls = zns->netlink_dplane; | |
3104 | #endif /* NETLINK */ | |
3105 | } | |
3106 | ||
c831033f MS |
3107 | /* |
3108 | * Provider api to signal that work/events are available | |
3109 | * for the dataplane pthread. | |
3110 | */ | |
3111 | int dplane_provider_work_ready(void) | |
3112 | { | |
e5a60d82 MS |
3113 | /* Note that during zebra startup, we may be offered work before |
3114 | * the dataplane pthread (and thread-master) are ready. We want to | |
3115 | * enqueue the work, but the event-scheduling machinery may not be | |
3116 | * available. | |
3117 | */ | |
3118 | if (zdplane_info.dg_run) { | |
3119 | thread_add_event(zdplane_info.dg_master, | |
3120 | dplane_thread_loop, NULL, 0, | |
3121 | &zdplane_info.dg_t_update); | |
3122 | } | |
c831033f MS |
3123 | |
3124 | return AOK; | |
3125 | } | |
3126 | ||
593e4eb1 MS |
3127 | /* |
3128 | * Enqueue a context directly to zebra main. | |
3129 | */ | |
3130 | void dplane_provider_enqueue_to_zebra(struct zebra_dplane_ctx *ctx) | |
3131 | { | |
3132 | struct dplane_ctx_q temp_list; | |
3133 | ||
3134 | /* Zebra's api takes a list, so we need to use a temporary list */ | |
3135 | TAILQ_INIT(&temp_list); | |
3136 | ||
3137 | TAILQ_INSERT_TAIL(&temp_list, ctx, zd_q_entries); | |
3138 | (zdplane_info.dg_results_cb)(&temp_list); | |
3139 | } | |
3140 | ||
7cdb1a84 | 3141 | /* |
c831033f | 3142 | * Kernel dataplane provider |
7cdb1a84 | 3143 | */ |
c831033f | 3144 | |
16c628de MS |
3145 | /* |
3146 | * Handler for kernel LSP updates | |
3147 | */ | |
3148 | static enum zebra_dplane_result | |
3149 | kernel_dplane_lsp_update(struct zebra_dplane_ctx *ctx) | |
3150 | { | |
3151 | enum zebra_dplane_result res; | |
3152 | ||
3153 | /* Call into the synchronous kernel-facing code here */ | |
3154 | res = kernel_lsp_update(ctx); | |
3155 | ||
3156 | if (res != ZEBRA_DPLANE_REQUEST_SUCCESS) | |
3157 | atomic_fetch_add_explicit( | |
3158 | &zdplane_info.dg_lsp_errors, 1, | |
3159 | memory_order_relaxed); | |
3160 | ||
3161 | return res; | |
3162 | } | |
3163 | ||
c10a646d MS |
3164 | /* |
3165 | * Handler for kernel pseudowire updates | |
3166 | */ | |
3167 | static enum zebra_dplane_result | |
3168 | kernel_dplane_pw_update(struct zebra_dplane_ctx *ctx) | |
3169 | { | |
3170 | enum zebra_dplane_result res; | |
3171 | ||
3172 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) | |
3173 | zlog_debug("Dplane pw %s: op %s af %d loc: %u rem: %u", | |
7c7ef4a8 | 3174 | dplane_ctx_get_ifname(ctx), |
c10a646d MS |
3175 | dplane_op2str(ctx->zd_op), |
3176 | dplane_ctx_get_pw_af(ctx), | |
3177 | dplane_ctx_get_pw_local_label(ctx), | |
3178 | dplane_ctx_get_pw_remote_label(ctx)); | |
3179 | ||
3180 | res = kernel_pw_update(ctx); | |
3181 | ||
3182 | if (res != ZEBRA_DPLANE_REQUEST_SUCCESS) | |
3183 | atomic_fetch_add_explicit( | |
3184 | &zdplane_info.dg_pw_errors, 1, | |
3185 | memory_order_relaxed); | |
3186 | ||
3187 | return res; | |
3188 | } | |
3189 | ||
16c628de MS |
3190 | /* |
3191 | * Handler for kernel route updates | |
3192 | */ | |
3193 | static enum zebra_dplane_result | |
3194 | kernel_dplane_route_update(struct zebra_dplane_ctx *ctx) | |
3195 | { | |
3196 | enum zebra_dplane_result res; | |
3197 | ||
3198 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) { | |
3199 | char dest_str[PREFIX_STRLEN]; | |
3200 | ||
3201 | prefix2str(dplane_ctx_get_dest(ctx), | |
3202 | dest_str, sizeof(dest_str)); | |
3203 | ||
3204 | zlog_debug("%u:%s Dplane route update ctx %p op %s", | |
3205 | dplane_ctx_get_vrf(ctx), dest_str, | |
3206 | ctx, dplane_op2str(dplane_ctx_get_op(ctx))); | |
3207 | } | |
3208 | ||
3209 | /* Call into the synchronous kernel-facing code here */ | |
3210 | res = kernel_route_update(ctx); | |
3211 | ||
3212 | if (res != ZEBRA_DPLANE_REQUEST_SUCCESS) | |
3213 | atomic_fetch_add_explicit( | |
3214 | &zdplane_info.dg_route_errors, 1, | |
3215 | memory_order_relaxed); | |
3216 | ||
3217 | return res; | |
3218 | } | |
3219 | ||
64168803 MS |
3220 | /* |
3221 | * Handler for kernel-facing interface address updates | |
3222 | */ | |
3223 | static enum zebra_dplane_result | |
3224 | kernel_dplane_address_update(struct zebra_dplane_ctx *ctx) | |
3225 | { | |
3226 | enum zebra_dplane_result res; | |
3227 | ||
64168803 MS |
3228 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) { |
3229 | char dest_str[PREFIX_STRLEN]; | |
3230 | ||
3231 | prefix2str(dplane_ctx_get_intf_addr(ctx), dest_str, | |
3232 | sizeof(dest_str)); | |
3233 | ||
3234 | zlog_debug("Dplane intf %s, idx %u, addr %s", | |
3235 | dplane_op2str(dplane_ctx_get_op(ctx)), | |
3236 | dplane_ctx_get_ifindex(ctx), dest_str); | |
3237 | } | |
3238 | ||
3239 | res = kernel_address_update_ctx(ctx); | |
3240 | ||
3241 | if (res != ZEBRA_DPLANE_REQUEST_SUCCESS) | |
3242 | atomic_fetch_add_explicit(&zdplane_info.dg_intf_addr_errors, | |
3243 | 1, memory_order_relaxed); | |
3244 | ||
3245 | return res; | |
3246 | } | |
3247 | ||
f820d025 SW |
3248 | /** |
3249 | * kernel_dplane_nexthop_update() - Handler for kernel nexthop updates | |
3250 | * | |
3251 | * @ctx: Dataplane context | |
3252 | * | |
3253 | * Return: Dataplane result flag | |
3254 | */ | |
3255 | static enum zebra_dplane_result | |
3256 | kernel_dplane_nexthop_update(struct zebra_dplane_ctx *ctx) | |
3257 | { | |
3258 | enum zebra_dplane_result res; | |
3259 | ||
3260 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) { | |
3261 | zlog_debug("ID (%u) Dplane nexthop update ctx %p op %s", | |
0c8215cb | 3262 | dplane_ctx_get_nhe_id(ctx), ctx, |
f820d025 SW |
3263 | dplane_op2str(dplane_ctx_get_op(ctx))); |
3264 | } | |
3265 | ||
3266 | res = kernel_nexthop_update(ctx); | |
3267 | ||
3268 | if (res != ZEBRA_DPLANE_REQUEST_SUCCESS) | |
3269 | atomic_fetch_add_explicit(&zdplane_info.dg_nexthop_errors, 1, | |
3270 | memory_order_relaxed); | |
3271 | ||
3272 | return res; | |
3273 | } | |
3274 | ||
036d93c0 | 3275 | /* |
931fa60c | 3276 | * Handler for kernel-facing EVPN MAC address updates |
036d93c0 MS |
3277 | */ |
3278 | static enum zebra_dplane_result | |
3279 | kernel_dplane_mac_update(struct zebra_dplane_ctx *ctx) | |
3280 | { | |
3281 | enum zebra_dplane_result res; | |
3282 | ||
3283 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) { | |
3284 | char buf[ETHER_ADDR_STRLEN]; | |
3285 | ||
3286 | prefix_mac2str(dplane_ctx_mac_get_addr(ctx), buf, | |
3287 | sizeof(buf)); | |
3288 | ||
3289 | zlog_debug("Dplane %s, mac %s, ifindex %u", | |
3290 | dplane_op2str(dplane_ctx_get_op(ctx)), | |
3291 | buf, dplane_ctx_get_ifindex(ctx)); | |
3292 | } | |
3293 | ||
3294 | res = kernel_mac_update_ctx(ctx); | |
3295 | ||
3296 | if (res != ZEBRA_DPLANE_REQUEST_SUCCESS) | |
3297 | atomic_fetch_add_explicit(&zdplane_info.dg_mac_errors, | |
3298 | 1, memory_order_relaxed); | |
3299 | ||
3300 | return res; | |
3301 | } | |
3302 | ||
931fa60c MS |
3303 | /* |
3304 | * Handler for kernel-facing EVPN neighbor updates | |
3305 | */ | |
3306 | static enum zebra_dplane_result | |
3307 | kernel_dplane_neigh_update(struct zebra_dplane_ctx *ctx) | |
3308 | { | |
3309 | enum zebra_dplane_result res; | |
3310 | ||
3311 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) { | |
3312 | char buf[PREFIX_STRLEN]; | |
3313 | ||
3314 | ipaddr2str(dplane_ctx_neigh_get_ipaddr(ctx), buf, | |
3315 | sizeof(buf)); | |
3316 | ||
3317 | zlog_debug("Dplane %s, ip %s, ifindex %u", | |
3318 | dplane_op2str(dplane_ctx_get_op(ctx)), | |
3319 | buf, dplane_ctx_get_ifindex(ctx)); | |
3320 | } | |
3321 | ||
3322 | res = kernel_neigh_update_ctx(ctx); | |
3323 | ||
3324 | if (res != ZEBRA_DPLANE_REQUEST_SUCCESS) | |
3325 | atomic_fetch_add_explicit(&zdplane_info.dg_neigh_errors, | |
3326 | 1, memory_order_relaxed); | |
3327 | ||
3328 | return res; | |
3329 | } | |
3330 | ||
c831033f MS |
3331 | /* |
3332 | * Kernel provider callback | |
3333 | */ | |
3334 | static int kernel_dplane_process_func(struct zebra_dplane_provider *prov) | |
7cdb1a84 | 3335 | { |
c831033f MS |
3336 | enum zebra_dplane_result res; |
3337 | struct zebra_dplane_ctx *ctx; | |
3338 | int counter, limit; | |
7cdb1a84 | 3339 | |
c831033f | 3340 | limit = dplane_provider_get_work_limit(prov); |
7cdb1a84 | 3341 | |
c831033f MS |
3342 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) |
3343 | zlog_debug("dplane provider '%s': processing", | |
3344 | dplane_provider_get_name(prov)); | |
7cdb1a84 | 3345 | |
c831033f | 3346 | for (counter = 0; counter < limit; counter++) { |
91f16812 | 3347 | |
c831033f MS |
3348 | ctx = dplane_provider_dequeue_in_ctx(prov); |
3349 | if (ctx == NULL) | |
3350 | break; | |
d8c16a95 | 3351 | |
9677961e MS |
3352 | /* A previous provider plugin may have asked to skip the |
3353 | * kernel update. | |
3354 | */ | |
3355 | if (dplane_ctx_is_skip_kernel(ctx)) { | |
3356 | res = ZEBRA_DPLANE_REQUEST_SUCCESS; | |
3357 | goto skip_one; | |
3358 | } | |
3359 | ||
16c628de MS |
3360 | /* Dispatch to appropriate kernel-facing apis */ |
3361 | switch (dplane_ctx_get_op(ctx)) { | |
1d11b21f | 3362 | |
16c628de MS |
3363 | case DPLANE_OP_ROUTE_INSTALL: |
3364 | case DPLANE_OP_ROUTE_UPDATE: | |
3365 | case DPLANE_OP_ROUTE_DELETE: | |
3366 | res = kernel_dplane_route_update(ctx); | |
3367 | break; | |
d8c16a95 | 3368 | |
f820d025 SW |
3369 | case DPLANE_OP_NH_INSTALL: |
3370 | case DPLANE_OP_NH_UPDATE: | |
3371 | case DPLANE_OP_NH_DELETE: | |
3372 | res = kernel_dplane_nexthop_update(ctx); | |
3373 | break; | |
3374 | ||
16c628de MS |
3375 | case DPLANE_OP_LSP_INSTALL: |
3376 | case DPLANE_OP_LSP_UPDATE: | |
3377 | case DPLANE_OP_LSP_DELETE: | |
3378 | res = kernel_dplane_lsp_update(ctx); | |
3379 | break; | |
d8c16a95 | 3380 | |
c10a646d MS |
3381 | case DPLANE_OP_PW_INSTALL: |
3382 | case DPLANE_OP_PW_UNINSTALL: | |
3383 | res = kernel_dplane_pw_update(ctx); | |
3384 | break; | |
3385 | ||
64168803 MS |
3386 | case DPLANE_OP_ADDR_INSTALL: |
3387 | case DPLANE_OP_ADDR_UNINSTALL: | |
3388 | res = kernel_dplane_address_update(ctx); | |
3389 | break; | |
3390 | ||
036d93c0 MS |
3391 | case DPLANE_OP_MAC_INSTALL: |
3392 | case DPLANE_OP_MAC_DELETE: | |
3393 | res = kernel_dplane_mac_update(ctx); | |
3394 | break; | |
3395 | ||
931fa60c MS |
3396 | case DPLANE_OP_NEIGH_INSTALL: |
3397 | case DPLANE_OP_NEIGH_UPDATE: | |
3398 | case DPLANE_OP_NEIGH_DELETE: | |
0bbd4ff4 MS |
3399 | case DPLANE_OP_VTEP_ADD: |
3400 | case DPLANE_OP_VTEP_DELETE: | |
931fa60c MS |
3401 | res = kernel_dplane_neigh_update(ctx); |
3402 | break; | |
3403 | ||
104e3ad9 | 3404 | /* Ignore 'notifications' - no-op */ |
cf363e1b MS |
3405 | case DPLANE_OP_SYS_ROUTE_ADD: |
3406 | case DPLANE_OP_SYS_ROUTE_DELETE: | |
54818e3b | 3407 | case DPLANE_OP_ROUTE_NOTIFY: |
104e3ad9 | 3408 | case DPLANE_OP_LSP_NOTIFY: |
cf363e1b MS |
3409 | res = ZEBRA_DPLANE_REQUEST_SUCCESS; |
3410 | break; | |
3411 | ||
16c628de | 3412 | default: |
c831033f | 3413 | atomic_fetch_add_explicit( |
16c628de | 3414 | &zdplane_info.dg_other_errors, 1, |
c831033f | 3415 | memory_order_relaxed); |
d8c16a95 | 3416 | |
16c628de MS |
3417 | res = ZEBRA_DPLANE_REQUEST_FAILURE; |
3418 | break; | |
3419 | } | |
3420 | ||
9677961e | 3421 | skip_one: |
c831033f MS |
3422 | dplane_ctx_set_status(ctx, res); |
3423 | ||
3424 | dplane_provider_enqueue_out_ctx(prov, ctx); | |
3425 | } | |
3426 | ||
3427 | /* Ensure that we'll run the work loop again if there's still | |
3428 | * more work to do. | |
3429 | */ | |
3430 | if (counter >= limit) { | |
3431 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) | |
3432 | zlog_debug("dplane provider '%s' reached max updates %d", | |
3433 | dplane_provider_get_name(prov), counter); | |
3434 | ||
3435 | atomic_fetch_add_explicit(&zdplane_info.dg_update_yields, | |
3436 | 1, memory_order_relaxed); | |
3437 | ||
3438 | dplane_provider_work_ready(); | |
3439 | } | |
3440 | ||
3441 | return 0; | |
3442 | } | |
3443 | ||
1e20238a | 3444 | #ifdef DPLANE_TEST_PROVIDER |
e5a60d82 | 3445 | |
c831033f MS |
3446 | /* |
3447 | * Test dataplane provider plugin | |
3448 | */ | |
3449 | ||
3450 | /* | |
3451 | * Test provider process callback | |
3452 | */ | |
3453 | static int test_dplane_process_func(struct zebra_dplane_provider *prov) | |
3454 | { | |
3455 | struct zebra_dplane_ctx *ctx; | |
3456 | int counter, limit; | |
3457 | ||
3458 | /* Just moving from 'in' queue to 'out' queue */ | |
3459 | ||
3460 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) | |
3461 | zlog_debug("dplane provider '%s': processing", | |
3462 | dplane_provider_get_name(prov)); | |
3463 | ||
3464 | limit = dplane_provider_get_work_limit(prov); | |
3465 | ||
3466 | for (counter = 0; counter < limit; counter++) { | |
3467 | ||
3468 | ctx = dplane_provider_dequeue_in_ctx(prov); | |
3469 | if (ctx == NULL) | |
3470 | break; | |
3471 | ||
cf363e1b MS |
3472 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) |
3473 | zlog_debug("dplane provider '%s': op %s", | |
3474 | dplane_provider_get_name(prov), | |
3475 | dplane_op2str(dplane_ctx_get_op(ctx))); | |
3476 | ||
c831033f MS |
3477 | dplane_ctx_set_status(ctx, ZEBRA_DPLANE_REQUEST_SUCCESS); |
3478 | ||
3479 | dplane_provider_enqueue_out_ctx(prov, ctx); | |
3480 | } | |
3481 | ||
c9d17fe8 MS |
3482 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) |
3483 | zlog_debug("dplane provider '%s': processed %d", | |
3484 | dplane_provider_get_name(prov), counter); | |
3485 | ||
c831033f MS |
3486 | /* Ensure that we'll run the work loop again if there's still |
3487 | * more work to do. | |
3488 | */ | |
3489 | if (counter >= limit) | |
3490 | dplane_provider_work_ready(); | |
3491 | ||
3492 | return 0; | |
3493 | } | |
3494 | ||
3495 | /* | |
3496 | * Test provider shutdown/fini callback | |
3497 | */ | |
3498 | static int test_dplane_shutdown_func(struct zebra_dplane_provider *prov, | |
3499 | bool early) | |
3500 | { | |
3501 | if (IS_ZEBRA_DEBUG_DPLANE) | |
3502 | zlog_debug("dplane provider '%s': %sshutdown", | |
3503 | dplane_provider_get_name(prov), | |
3504 | early ? "early " : ""); | |
3505 | ||
3506 | return 0; | |
3507 | } | |
e5a60d82 | 3508 | #endif /* DPLANE_TEST_PROVIDER */ |
c831033f MS |
3509 | |
3510 | /* | |
3511 | * Register default kernel provider | |
3512 | */ | |
3513 | static void dplane_provider_init(void) | |
3514 | { | |
3515 | int ret; | |
3516 | ||
3517 | ret = dplane_provider_register("Kernel", | |
3518 | DPLANE_PRIO_KERNEL, | |
1dd4ea8a | 3519 | DPLANE_PROV_FLAGS_DEFAULT, NULL, |
c831033f MS |
3520 | kernel_dplane_process_func, |
3521 | NULL, | |
1ff8a248 | 3522 | NULL, NULL); |
c831033f MS |
3523 | |
3524 | if (ret != AOK) | |
3525 | zlog_err("Unable to register kernel dplane provider: %d", | |
3526 | ret); | |
3527 | ||
1e20238a | 3528 | #ifdef DPLANE_TEST_PROVIDER |
e5a60d82 | 3529 | /* Optional test provider ... */ |
c831033f MS |
3530 | ret = dplane_provider_register("Test", |
3531 | DPLANE_PRIO_PRE_KERNEL, | |
1dd4ea8a | 3532 | DPLANE_PROV_FLAGS_DEFAULT, NULL, |
c831033f MS |
3533 | test_dplane_process_func, |
3534 | test_dplane_shutdown_func, | |
1ff8a248 | 3535 | NULL /* data */, NULL); |
c831033f MS |
3536 | |
3537 | if (ret != AOK) | |
3538 | zlog_err("Unable to register test dplane provider: %d", | |
3539 | ret); | |
e5a60d82 | 3540 | #endif /* DPLANE_TEST_PROVIDER */ |
7cdb1a84 MS |
3541 | } |
3542 | ||
4dfd7a02 MS |
3543 | /* Indicates zebra shutdown/exit is in progress. Some operations may be |
3544 | * simplified or skipped during shutdown processing. | |
3545 | */ | |
3546 | bool dplane_is_in_shutdown(void) | |
3547 | { | |
25779064 | 3548 | return zdplane_info.dg_is_shutdown; |
4dfd7a02 MS |
3549 | } |
3550 | ||
3551 | /* | |
3552 | * Early or pre-shutdown, de-init notification api. This runs pretty | |
3553 | * early during zebra shutdown, as a signal to stop new work and prepare | |
3554 | * for updates generated by shutdown/cleanup activity, as zebra tries to | |
3555 | * remove everything it's responsible for. | |
c9d17fe8 | 3556 | * NB: This runs in the main zebra pthread context. |
4dfd7a02 MS |
3557 | */ |
3558 | void zebra_dplane_pre_finish(void) | |
3559 | { | |
6ba8db21 RZ |
3560 | struct zebra_dplane_provider *dp; |
3561 | ||
4dfd7a02 MS |
3562 | if (IS_ZEBRA_DEBUG_DPLANE) |
3563 | zlog_debug("Zebra dataplane pre-fini called"); | |
3564 | ||
25779064 | 3565 | zdplane_info.dg_is_shutdown = true; |
4dfd7a02 | 3566 | |
6ba8db21 RZ |
3567 | /* Notify provider(s) of pending shutdown. */ |
3568 | TAILQ_FOREACH(dp, &zdplane_info.dg_providers_q, dp_prov_link) { | |
3569 | if (dp->dp_fini == NULL) | |
3570 | continue; | |
3571 | ||
3572 | dp->dp_fini(dp, true); | |
3573 | } | |
4dfd7a02 MS |
3574 | } |
3575 | ||
3576 | /* | |
3577 | * Utility to determine whether work remains enqueued within the dplane; | |
3578 | * used during system shutdown processing. | |
3579 | */ | |
3580 | static bool dplane_work_pending(void) | |
3581 | { | |
c9d17fe8 | 3582 | bool ret = false; |
25779064 | 3583 | struct zebra_dplane_ctx *ctx; |
c9d17fe8 | 3584 | struct zebra_dplane_provider *prov; |
4dfd7a02 | 3585 | |
c831033f MS |
3586 | /* TODO -- just checking incoming/pending work for now, must check |
3587 | * providers | |
3588 | */ | |
4dfd7a02 MS |
3589 | DPLANE_LOCK(); |
3590 | { | |
3fe4ccc4 | 3591 | ctx = TAILQ_FIRST(&zdplane_info.dg_update_ctx_q); |
c9d17fe8 | 3592 | prov = TAILQ_FIRST(&zdplane_info.dg_providers_q); |
4dfd7a02 MS |
3593 | } |
3594 | DPLANE_UNLOCK(); | |
3595 | ||
c9d17fe8 MS |
3596 | if (ctx != NULL) { |
3597 | ret = true; | |
3598 | goto done; | |
3599 | } | |
3600 | ||
3601 | while (prov) { | |
3602 | ||
ad6aad4d | 3603 | dplane_provider_lock(prov); |
c9d17fe8 MS |
3604 | |
3605 | ctx = TAILQ_FIRST(&(prov->dp_ctx_in_q)); | |
3606 | if (ctx == NULL) | |
3607 | ctx = TAILQ_FIRST(&(prov->dp_ctx_out_q)); | |
3608 | ||
ad6aad4d | 3609 | dplane_provider_unlock(prov); |
c9d17fe8 MS |
3610 | |
3611 | if (ctx != NULL) | |
3612 | break; | |
3613 | ||
3614 | DPLANE_LOCK(); | |
3615 | prov = TAILQ_NEXT(prov, dp_prov_link); | |
3616 | DPLANE_UNLOCK(); | |
3617 | } | |
3618 | ||
3619 | if (ctx != NULL) | |
3620 | ret = true; | |
3621 | ||
3622 | done: | |
3623 | return ret; | |
4dfd7a02 MS |
3624 | } |
3625 | ||
3626 | /* | |
3627 | * Shutdown-time intermediate callback, used to determine when all pending | |
3628 | * in-flight updates are done. If there's still work to do, reschedules itself. | |
3629 | * If all work is done, schedules an event to the main zebra thread for | |
3630 | * final zebra shutdown. | |
3631 | * This runs in the dplane pthread context. | |
3632 | */ | |
3633 | static int dplane_check_shutdown_status(struct thread *event) | |
3634 | { | |
3635 | if (IS_ZEBRA_DEBUG_DPLANE) | |
3636 | zlog_debug("Zebra dataplane shutdown status check called"); | |
3637 | ||
3638 | if (dplane_work_pending()) { | |
3639 | /* Reschedule dplane check on a short timer */ | |
25779064 | 3640 | thread_add_timer_msec(zdplane_info.dg_master, |
4dfd7a02 MS |
3641 | dplane_check_shutdown_status, |
3642 | NULL, 100, | |
25779064 | 3643 | &zdplane_info.dg_t_shutdown_check); |
4dfd7a02 MS |
3644 | |
3645 | /* TODO - give up and stop waiting after a short time? */ | |
3646 | ||
3647 | } else { | |
3648 | /* We appear to be done - schedule a final callback event | |
3649 | * for the zebra main pthread. | |
3650 | */ | |
3801e764 | 3651 | thread_add_event(zrouter.master, zebra_finalize, NULL, 0, NULL); |
4dfd7a02 MS |
3652 | } |
3653 | ||
3654 | return 0; | |
3655 | } | |
3656 | ||
18c37974 | 3657 | /* |
1d11b21f | 3658 | * Shutdown, de-init api. This runs pretty late during shutdown, |
4dfd7a02 MS |
3659 | * after zebra has tried to free/remove/uninstall all routes during shutdown. |
3660 | * At this point, dplane work may still remain to be done, so we can't just | |
3661 | * blindly terminate. If there's still work to do, we'll periodically check | |
3662 | * and when done, we'll enqueue a task to the zebra main thread for final | |
3663 | * termination processing. | |
3664 | * | |
1d11b21f | 3665 | * NB: This runs in the main zebra thread context. |
18c37974 | 3666 | */ |
1d11b21f | 3667 | void zebra_dplane_finish(void) |
18c37974 | 3668 | { |
4dfd7a02 MS |
3669 | if (IS_ZEBRA_DEBUG_DPLANE) |
3670 | zlog_debug("Zebra dataplane fini called"); | |
3671 | ||
25779064 | 3672 | thread_add_event(zdplane_info.dg_master, |
4dfd7a02 | 3673 | dplane_check_shutdown_status, NULL, 0, |
25779064 | 3674 | &zdplane_info.dg_t_shutdown_check); |
4dfd7a02 MS |
3675 | } |
3676 | ||
c831033f MS |
3677 | /* |
3678 | * Main dataplane pthread event loop. The thread takes new incoming work | |
3679 | * and offers it to the first provider. It then iterates through the | |
3680 | * providers, taking complete work from each one and offering it | |
3681 | * to the next in order. At each step, a limited number of updates are | |
3682 | * processed during a cycle in order to provide some fairness. | |
14b0bc8e MS |
3683 | * |
3684 | * This loop through the providers is only run once, so that the dataplane | |
3685 | * pthread can look for other pending work - such as i/o work on behalf of | |
3686 | * providers. | |
c831033f MS |
3687 | */ |
3688 | static int dplane_thread_loop(struct thread *event) | |
3689 | { | |
3690 | struct dplane_ctx_q work_list; | |
3691 | struct dplane_ctx_q error_list; | |
3692 | struct zebra_dplane_provider *prov; | |
3693 | struct zebra_dplane_ctx *ctx, *tctx; | |
3694 | int limit, counter, error_counter; | |
c9d17fe8 | 3695 | uint64_t curr, high; |
c831033f MS |
3696 | |
3697 | /* Capture work limit per cycle */ | |
3698 | limit = zdplane_info.dg_updates_per_cycle; | |
3699 | ||
14b0bc8e | 3700 | /* Init temporary lists used to move contexts among providers */ |
c831033f | 3701 | TAILQ_INIT(&work_list); |
14b0bc8e MS |
3702 | TAILQ_INIT(&error_list); |
3703 | error_counter = 0; | |
c831033f MS |
3704 | |
3705 | /* Check for zebra shutdown */ | |
3706 | if (!zdplane_info.dg_run) | |
3707 | goto done; | |
3708 | ||
3709 | /* Dequeue some incoming work from zebra (if any) onto the temporary | |
3710 | * working list. | |
3711 | */ | |
3712 | DPLANE_LOCK(); | |
3713 | ||
3714 | /* Locate initial registered provider */ | |
3715 | prov = TAILQ_FIRST(&zdplane_info.dg_providers_q); | |
3716 | ||
14b0bc8e | 3717 | /* Move new work from incoming list to temp list */ |
c831033f | 3718 | for (counter = 0; counter < limit; counter++) { |
3fe4ccc4 | 3719 | ctx = TAILQ_FIRST(&zdplane_info.dg_update_ctx_q); |
c831033f | 3720 | if (ctx) { |
3fe4ccc4 | 3721 | TAILQ_REMOVE(&zdplane_info.dg_update_ctx_q, ctx, |
c831033f MS |
3722 | zd_q_entries); |
3723 | ||
c831033f MS |
3724 | ctx->zd_provider = prov->dp_id; |
3725 | ||
3726 | TAILQ_INSERT_TAIL(&work_list, ctx, zd_q_entries); | |
3727 | } else { | |
3728 | break; | |
3729 | } | |
3730 | } | |
3731 | ||
3732 | DPLANE_UNLOCK(); | |
3733 | ||
14b0bc8e MS |
3734 | atomic_fetch_sub_explicit(&zdplane_info.dg_routes_queued, counter, |
3735 | memory_order_relaxed); | |
3736 | ||
c831033f MS |
3737 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) |
3738 | zlog_debug("dplane: incoming new work counter: %d", counter); | |
3739 | ||
3740 | /* Iterate through the registered providers, offering new incoming | |
3741 | * work. If the provider has outgoing work in its queue, take that | |
3742 | * work for the next provider | |
3743 | */ | |
3744 | while (prov) { | |
3745 | ||
14b0bc8e MS |
3746 | /* At each iteration, the temporary work list has 'counter' |
3747 | * items. | |
3748 | */ | |
c831033f MS |
3749 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) |
3750 | zlog_debug("dplane enqueues %d new work to provider '%s'", | |
3751 | counter, dplane_provider_get_name(prov)); | |
3752 | ||
3753 | /* Capture current provider id in each context; check for | |
3754 | * error status. | |
3755 | */ | |
3756 | TAILQ_FOREACH_SAFE(ctx, &work_list, zd_q_entries, tctx) { | |
3757 | if (dplane_ctx_get_status(ctx) == | |
3758 | ZEBRA_DPLANE_REQUEST_SUCCESS) { | |
3759 | ctx->zd_provider = prov->dp_id; | |
3760 | } else { | |
3761 | /* | |
3762 | * TODO -- improve error-handling: recirc | |
3763 | * errors backwards so that providers can | |
3764 | * 'undo' their work (if they want to) | |
3765 | */ | |
3766 | ||
3767 | /* Move to error list; will be returned | |
3768 | * zebra main. | |
3769 | */ | |
3770 | TAILQ_REMOVE(&work_list, ctx, zd_q_entries); | |
3771 | TAILQ_INSERT_TAIL(&error_list, | |
3772 | ctx, zd_q_entries); | |
3773 | error_counter++; | |
3774 | } | |
3775 | } | |
3776 | ||
3777 | /* Enqueue new work to the provider */ | |
ad6aad4d | 3778 | dplane_provider_lock(prov); |
c831033f MS |
3779 | |
3780 | if (TAILQ_FIRST(&work_list)) | |
3781 | TAILQ_CONCAT(&(prov->dp_ctx_in_q), &work_list, | |
3782 | zd_q_entries); | |
3783 | ||
c9d17fe8 MS |
3784 | atomic_fetch_add_explicit(&prov->dp_in_counter, counter, |
3785 | memory_order_relaxed); | |
3786 | atomic_fetch_add_explicit(&prov->dp_in_queued, counter, | |
3787 | memory_order_relaxed); | |
3788 | curr = atomic_load_explicit(&prov->dp_in_queued, | |
3789 | memory_order_relaxed); | |
3790 | high = atomic_load_explicit(&prov->dp_in_max, | |
3791 | memory_order_relaxed); | |
3792 | if (curr > high) | |
3793 | atomic_store_explicit(&prov->dp_in_max, curr, | |
c831033f MS |
3794 | memory_order_relaxed); |
3795 | ||
ad6aad4d | 3796 | dplane_provider_unlock(prov); |
c831033f | 3797 | |
14b0bc8e MS |
3798 | /* Reset the temp list (though the 'concat' may have done this |
3799 | * already), and the counter | |
3800 | */ | |
c831033f MS |
3801 | TAILQ_INIT(&work_list); |
3802 | counter = 0; | |
3803 | ||
14b0bc8e MS |
3804 | /* Call into the provider code. Note that this is |
3805 | * unconditional: we offer to do work even if we don't enqueue | |
3806 | * any _new_ work. | |
3807 | */ | |
c831033f MS |
3808 | (*prov->dp_fp)(prov); |
3809 | ||
3810 | /* Check for zebra shutdown */ | |
3811 | if (!zdplane_info.dg_run) | |
3812 | break; | |
3813 | ||
3814 | /* Dequeue completed work from the provider */ | |
ad6aad4d | 3815 | dplane_provider_lock(prov); |
c831033f MS |
3816 | |
3817 | while (counter < limit) { | |
3818 | ctx = TAILQ_FIRST(&(prov->dp_ctx_out_q)); | |
3819 | if (ctx) { | |
3820 | TAILQ_REMOVE(&(prov->dp_ctx_out_q), ctx, | |
3821 | zd_q_entries); | |
3822 | ||
3823 | TAILQ_INSERT_TAIL(&work_list, | |
3824 | ctx, zd_q_entries); | |
3825 | counter++; | |
3826 | } else | |
3827 | break; | |
3828 | } | |
3829 | ||
ad6aad4d | 3830 | dplane_provider_unlock(prov); |
c831033f MS |
3831 | |
3832 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) | |
3833 | zlog_debug("dplane dequeues %d completed work from provider %s", | |
3834 | counter, dplane_provider_get_name(prov)); | |
3835 | ||
3836 | /* Locate next provider */ | |
3837 | DPLANE_LOCK(); | |
3838 | prov = TAILQ_NEXT(prov, dp_prov_link); | |
3839 | DPLANE_UNLOCK(); | |
c831033f MS |
3840 | } |
3841 | ||
3842 | /* After all providers have been serviced, enqueue any completed | |
14b0bc8e | 3843 | * work and any errors back to zebra so it can process the results. |
c831033f | 3844 | */ |
c831033f | 3845 | if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) |
14b0bc8e MS |
3846 | zlog_debug("dplane has %d completed, %d errors, for zebra main", |
3847 | counter, error_counter); | |
c831033f MS |
3848 | |
3849 | /* | |
4c206c8f | 3850 | * Hand lists through the api to zebra main, |
c831033f MS |
3851 | * to reduce the number of lock/unlock cycles |
3852 | */ | |
14b0bc8e | 3853 | |
4c206c8f MS |
3854 | /* Call through to zebra main */ |
3855 | (zdplane_info.dg_results_cb)(&error_list); | |
14b0bc8e | 3856 | |
4c206c8f | 3857 | TAILQ_INIT(&error_list); |
14b0bc8e | 3858 | |
4c206c8f MS |
3859 | /* Call through to zebra main */ |
3860 | (zdplane_info.dg_results_cb)(&work_list); | |
c831033f | 3861 | |
4c206c8f | 3862 | TAILQ_INIT(&work_list); |
c831033f MS |
3863 | |
3864 | done: | |
3865 | return 0; | |
3866 | } | |
3867 | ||
4dfd7a02 MS |
3868 | /* |
3869 | * Final phase of shutdown, after all work enqueued to dplane has been | |
3870 | * processed. This is called from the zebra main pthread context. | |
3871 | */ | |
3872 | void zebra_dplane_shutdown(void) | |
3873 | { | |
6ba8db21 RZ |
3874 | struct zebra_dplane_provider *dp; |
3875 | ||
4dfd7a02 MS |
3876 | if (IS_ZEBRA_DEBUG_DPLANE) |
3877 | zlog_debug("Zebra dataplane shutdown called"); | |
1d11b21f MS |
3878 | |
3879 | /* Stop dplane thread, if it's running */ | |
3880 | ||
25779064 | 3881 | zdplane_info.dg_run = false; |
1d11b21f | 3882 | |
9344d3fc SW |
3883 | if (zdplane_info.dg_t_update) |
3884 | thread_cancel_async(zdplane_info.dg_t_update->master, | |
3885 | &zdplane_info.dg_t_update, NULL); | |
1d11b21f | 3886 | |
d8c16a95 MS |
3887 | frr_pthread_stop(zdplane_info.dg_pthread, NULL); |
3888 | ||
3889 | /* Destroy pthread */ | |
3890 | frr_pthread_destroy(zdplane_info.dg_pthread); | |
3891 | zdplane_info.dg_pthread = NULL; | |
3892 | zdplane_info.dg_master = NULL; | |
4dfd7a02 | 3893 | |
6ba8db21 RZ |
3894 | /* Notify provider(s) of final shutdown. */ |
3895 | TAILQ_FOREACH(dp, &zdplane_info.dg_providers_q, dp_prov_link) { | |
3896 | if (dp->dp_fini == NULL) | |
3897 | continue; | |
3898 | ||
3899 | dp->dp_fini(dp, false); | |
3900 | } | |
c831033f MS |
3901 | |
3902 | /* TODO -- Clean-up provider objects */ | |
3903 | ||
3904 | /* TODO -- Clean queue(s), free memory */ | |
3905 | } | |
3906 | ||
3907 | /* | |
3908 | * Initialize the dataplane module during startup, internal/private version | |
3909 | */ | |
2561d12e | 3910 | static void zebra_dplane_init_internal(void) |
c831033f MS |
3911 | { |
3912 | memset(&zdplane_info, 0, sizeof(zdplane_info)); | |
3913 | ||
3914 | pthread_mutex_init(&zdplane_info.dg_mutex, NULL); | |
1d11b21f | 3915 | |
3fe4ccc4 | 3916 | TAILQ_INIT(&zdplane_info.dg_update_ctx_q); |
c831033f | 3917 | TAILQ_INIT(&zdplane_info.dg_providers_q); |
1d11b21f | 3918 | |
c831033f MS |
3919 | zdplane_info.dg_updates_per_cycle = DPLANE_DEFAULT_NEW_WORK; |
3920 | ||
3921 | zdplane_info.dg_max_queued_updates = DPLANE_DEFAULT_MAX_QUEUED; | |
3922 | ||
3923 | /* Register default kernel 'provider' during init */ | |
3924 | dplane_provider_init(); | |
e5a60d82 | 3925 | } |
c831033f | 3926 | |
e5a60d82 MS |
3927 | /* |
3928 | * Start the dataplane pthread. This step needs to be run later than the | |
3929 | * 'init' step, in case zebra has fork-ed. | |
3930 | */ | |
3931 | void zebra_dplane_start(void) | |
3932 | { | |
1dd4ea8a | 3933 | struct zebra_dplane_provider *prov; |
c831033f MS |
3934 | struct frr_pthread_attr pattr = { |
3935 | .start = frr_pthread_attr_default.start, | |
3936 | .stop = frr_pthread_attr_default.stop | |
3937 | }; | |
3938 | ||
1dd4ea8a MS |
3939 | /* Start dataplane pthread */ |
3940 | ||
c831033f | 3941 | zdplane_info.dg_pthread = frr_pthread_new(&pattr, "Zebra dplane thread", |
0eca319c | 3942 | "zebra_dplane"); |
c831033f MS |
3943 | |
3944 | zdplane_info.dg_master = zdplane_info.dg_pthread->master; | |
3945 | ||
e5a60d82 MS |
3946 | zdplane_info.dg_run = true; |
3947 | ||
c831033f MS |
3948 | /* Enqueue an initial event for the dataplane pthread */ |
3949 | thread_add_event(zdplane_info.dg_master, dplane_thread_loop, NULL, 0, | |
3950 | &zdplane_info.dg_t_update); | |
3951 | ||
1dd4ea8a MS |
3952 | /* Call start callbacks for registered providers */ |
3953 | ||
3954 | DPLANE_LOCK(); | |
3955 | prov = TAILQ_FIRST(&zdplane_info.dg_providers_q); | |
3956 | DPLANE_UNLOCK(); | |
3957 | ||
3958 | while (prov) { | |
3959 | ||
3960 | if (prov->dp_start) | |
3961 | (prov->dp_start)(prov); | |
3962 | ||
3963 | /* Locate next provider */ | |
3964 | DPLANE_LOCK(); | |
3965 | prov = TAILQ_NEXT(prov, dp_prov_link); | |
3966 | DPLANE_UNLOCK(); | |
3967 | } | |
3968 | ||
c831033f | 3969 | frr_pthread_run(zdplane_info.dg_pthread, NULL); |
18c37974 MS |
3970 | } |
3971 | ||
7cdb1a84 | 3972 | /* |
b8e0423d | 3973 | * Initialize the dataplane module at startup; called by zebra rib_init() |
7cdb1a84 | 3974 | */ |
4c206c8f | 3975 | void zebra_dplane_init(int (*results_fp)(struct dplane_ctx_q *)) |
7cdb1a84 | 3976 | { |
2561d12e | 3977 | zebra_dplane_init_internal(); |
4c206c8f | 3978 | zdplane_info.dg_results_cb = results_fp; |
7cdb1a84 | 3979 | } |