]>
Commit | Line | Data |
---|---|---|
d35f447d RZ |
1 | /* |
2 | * Zebra dataplane plugin for Forwarding Plane Manager (FPM) using netlink. | |
3 | * | |
4 | * Copyright (C) 2019 Network Device Education Foundation, Inc. ("NetDEF") | |
5 | * Rafael Zalamena | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published by | |
9 | * the Free Software Foundation; either version 2 of the License, or | |
10 | * (at your option) any later version. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, but | |
13 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | * General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License along | |
18 | * with this program; see the file COPYING; if not, write to the Free Software | |
19 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
20 | */ | |
21 | ||
7309092b DL |
22 | #ifdef HAVE_CONFIG_H |
23 | #include "config.h" /* Include this explicitly */ | |
24 | #endif | |
25 | ||
d35f447d RZ |
26 | #include <arpa/inet.h> |
27 | ||
28 | #include <sys/types.h> | |
29 | #include <sys/socket.h> | |
30 | ||
31 | #include <errno.h> | |
32 | #include <string.h> | |
33 | ||
d35f447d | 34 | #include "lib/zebra.h" |
6cc059cd | 35 | #include "lib/json.h" |
d35f447d | 36 | #include "lib/libfrr.h" |
c871e6c9 | 37 | #include "lib/frratomic.h" |
3bdd7fca | 38 | #include "lib/command.h" |
d35f447d RZ |
39 | #include "lib/memory.h" |
40 | #include "lib/network.h" | |
41 | #include "lib/ns.h" | |
42 | #include "lib/frr_pthread.h" | |
e5e444d8 | 43 | #include "zebra/debug.h" |
bda10adf | 44 | #include "zebra/interface.h" |
d35f447d | 45 | #include "zebra/zebra_dplane.h" |
b300c8bb | 46 | #include "zebra/zebra_mpls.h" |
018e77bc | 47 | #include "zebra/zebra_router.h" |
b2998086 PR |
48 | #include "zebra/zebra_evpn.h" |
49 | #include "zebra/zebra_evpn_mac.h" | |
bda10adf | 50 | #include "zebra/zebra_vxlan_private.h" |
d35f447d RZ |
51 | #include "zebra/kernel_netlink.h" |
52 | #include "zebra/rt_netlink.h" | |
53 | #include "zebra/debug.h" | |
54 | ||
55 | #define SOUTHBOUND_DEFAULT_ADDR INADDR_LOOPBACK | |
56 | #define SOUTHBOUND_DEFAULT_PORT 2620 | |
57 | ||
a179ba35 RZ |
58 | /** |
59 | * FPM header: | |
60 | * { | |
61 | * version: 1 byte (always 1), | |
62 | * type: 1 byte (1 for netlink, 2 protobuf), | |
63 | * len: 2 bytes (network order), | |
64 | * } | |
65 | * | |
66 | * This header is used with any format to tell the users how many bytes to | |
67 | * expect. | |
68 | */ | |
69 | #define FPM_HEADER_SIZE 4 | |
70 | ||
d35f447d RZ |
71 | static const char *prov_name = "dplane_fpm_nl"; |
72 | ||
73 | struct fpm_nl_ctx { | |
74 | /* data plane connection. */ | |
75 | int socket; | |
3bdd7fca | 76 | bool disabled; |
d35f447d | 77 | bool connecting; |
55eb9d4d | 78 | bool nhg_complete; |
018e77bc | 79 | bool rib_complete; |
bda10adf | 80 | bool rmac_complete; |
b55ab92a | 81 | bool use_nhg; |
d35f447d RZ |
82 | struct sockaddr_storage addr; |
83 | ||
84 | /* data plane buffers. */ | |
85 | struct stream *ibuf; | |
86 | struct stream *obuf; | |
87 | pthread_mutex_t obuf_mutex; | |
88 | ||
ba803a2f RZ |
89 | /* |
90 | * data plane context queue: | |
91 | * When a FPM server connection becomes a bottleneck, we must keep the | |
92 | * data plane contexts until we get a chance to process them. | |
93 | */ | |
94 | struct dplane_ctx_q ctxqueue; | |
95 | pthread_mutex_t ctxqueue_mutex; | |
96 | ||
d35f447d | 97 | /* data plane events. */ |
ba803a2f | 98 | struct zebra_dplane_provider *prov; |
d35f447d RZ |
99 | struct frr_pthread *fthread; |
100 | struct thread *t_connect; | |
101 | struct thread *t_read; | |
102 | struct thread *t_write; | |
3bdd7fca | 103 | struct thread *t_event; |
ba803a2f | 104 | struct thread *t_dequeue; |
018e77bc RZ |
105 | |
106 | /* zebra events. */ | |
f9bf1ecc DE |
107 | struct thread *t_lspreset; |
108 | struct thread *t_lspwalk; | |
981ca597 RZ |
109 | struct thread *t_nhgreset; |
110 | struct thread *t_nhgwalk; | |
018e77bc RZ |
111 | struct thread *t_ribreset; |
112 | struct thread *t_ribwalk; | |
bda10adf RZ |
113 | struct thread *t_rmacreset; |
114 | struct thread *t_rmacwalk; | |
6cc059cd RZ |
115 | |
116 | /* Statistic counters. */ | |
117 | struct { | |
118 | /* Amount of bytes read into ibuf. */ | |
770a8d28 | 119 | _Atomic uint32_t bytes_read; |
6cc059cd | 120 | /* Amount of bytes written from obuf. */ |
770a8d28 | 121 | _Atomic uint32_t bytes_sent; |
ad4d1022 | 122 | /* Output buffer current usage. */ |
770a8d28 | 123 | _Atomic uint32_t obuf_bytes; |
ad4d1022 | 124 | /* Output buffer peak usage. */ |
770a8d28 | 125 | _Atomic uint32_t obuf_peak; |
6cc059cd RZ |
126 | |
127 | /* Amount of connection closes. */ | |
770a8d28 | 128 | _Atomic uint32_t connection_closes; |
6cc059cd | 129 | /* Amount of connection errors. */ |
770a8d28 | 130 | _Atomic uint32_t connection_errors; |
6cc059cd RZ |
131 | |
132 | /* Amount of user configurations: FNE_RECONNECT. */ | |
770a8d28 | 133 | _Atomic uint32_t user_configures; |
6cc059cd | 134 | /* Amount of user disable requests: FNE_DISABLE. */ |
770a8d28 | 135 | _Atomic uint32_t user_disables; |
6cc059cd RZ |
136 | |
137 | /* Amount of data plane context processed. */ | |
770a8d28 | 138 | _Atomic uint32_t dplane_contexts; |
ba803a2f | 139 | /* Amount of data plane contexts enqueued. */ |
770a8d28 | 140 | _Atomic uint32_t ctxqueue_len; |
ba803a2f | 141 | /* Peak amount of data plane contexts enqueued. */ |
770a8d28 | 142 | _Atomic uint32_t ctxqueue_len_peak; |
6cc059cd RZ |
143 | |
144 | /* Amount of buffer full events. */ | |
770a8d28 | 145 | _Atomic uint32_t buffer_full; |
6cc059cd | 146 | } counters; |
770a8d28 | 147 | } *gfnc; |
3bdd7fca RZ |
148 | |
149 | enum fpm_nl_events { | |
150 | /* Ask for FPM to reconnect the external server. */ | |
151 | FNE_RECONNECT, | |
152 | /* Disable FPM. */ | |
153 | FNE_DISABLE, | |
6cc059cd RZ |
154 | /* Reset counters. */ |
155 | FNE_RESET_COUNTERS, | |
b55ab92a RZ |
156 | /* Toggle next hop group feature. */ |
157 | FNE_TOGGLE_NHG, | |
a2032324 RZ |
158 | /* Reconnect request by our own code to avoid races. */ |
159 | FNE_INTERNAL_RECONNECT, | |
55eb9d4d | 160 | |
f9bf1ecc DE |
161 | /* LSP walk finished. */ |
162 | FNE_LSP_FINISHED, | |
55eb9d4d RZ |
163 | /* Next hop groups walk finished. */ |
164 | FNE_NHG_FINISHED, | |
165 | /* RIB walk finished. */ | |
166 | FNE_RIB_FINISHED, | |
167 | /* RMAC walk finished. */ | |
168 | FNE_RMAC_FINISHED, | |
d35f447d RZ |
169 | }; |
170 | ||
a2032324 RZ |
171 | #define FPM_RECONNECT(fnc) \ |
172 | thread_add_event((fnc)->fthread->master, fpm_process_event, (fnc), \ | |
173 | FNE_INTERNAL_RECONNECT, &(fnc)->t_event) | |
174 | ||
55eb9d4d RZ |
175 | #define WALK_FINISH(fnc, ev) \ |
176 | thread_add_event((fnc)->fthread->master, fpm_process_event, (fnc), \ | |
177 | (ev), NULL) | |
178 | ||
018e77bc RZ |
179 | /* |
180 | * Prototypes. | |
181 | */ | |
3bdd7fca | 182 | static int fpm_process_event(struct thread *t); |
018e77bc | 183 | static int fpm_nl_enqueue(struct fpm_nl_ctx *fnc, struct zebra_dplane_ctx *ctx); |
f9bf1ecc DE |
184 | static int fpm_lsp_send(struct thread *t); |
185 | static int fpm_lsp_reset(struct thread *t); | |
981ca597 RZ |
186 | static int fpm_nhg_send(struct thread *t); |
187 | static int fpm_nhg_reset(struct thread *t); | |
018e77bc RZ |
188 | static int fpm_rib_send(struct thread *t); |
189 | static int fpm_rib_reset(struct thread *t); | |
bda10adf RZ |
190 | static int fpm_rmac_send(struct thread *t); |
191 | static int fpm_rmac_reset(struct thread *t); | |
018e77bc | 192 | |
3bdd7fca RZ |
193 | /* |
194 | * CLI. | |
195 | */ | |
6cc059cd RZ |
196 | #define FPM_STR "Forwarding Plane Manager configuration\n" |
197 | ||
3bdd7fca RZ |
198 | DEFUN(fpm_set_address, fpm_set_address_cmd, |
199 | "fpm address <A.B.C.D|X:X::X:X> [port (1-65535)]", | |
6cc059cd | 200 | FPM_STR |
3bdd7fca RZ |
201 | "FPM remote listening server address\n" |
202 | "Remote IPv4 FPM server\n" | |
203 | "Remote IPv6 FPM server\n" | |
204 | "FPM remote listening server port\n" | |
205 | "Remote FPM server port\n") | |
206 | { | |
207 | struct sockaddr_in *sin; | |
208 | struct sockaddr_in6 *sin6; | |
209 | uint16_t port = 0; | |
210 | uint8_t naddr[INET6_BUFSIZ]; | |
211 | ||
212 | if (argc == 5) | |
213 | port = strtol(argv[4]->arg, NULL, 10); | |
214 | ||
215 | /* Handle IPv4 addresses. */ | |
216 | if (inet_pton(AF_INET, argv[2]->arg, naddr) == 1) { | |
217 | sin = (struct sockaddr_in *)&gfnc->addr; | |
218 | ||
219 | memset(sin, 0, sizeof(*sin)); | |
220 | sin->sin_family = AF_INET; | |
221 | sin->sin_port = | |
222 | port ? htons(port) : htons(SOUTHBOUND_DEFAULT_PORT); | |
223 | #ifdef HAVE_STRUCT_SOCKADDR_SA_LEN | |
224 | sin->sin_len = sizeof(*sin); | |
225 | #endif /* HAVE_STRUCT_SOCKADDR_SA_LEN */ | |
226 | memcpy(&sin->sin_addr, naddr, sizeof(sin->sin_addr)); | |
227 | ||
228 | goto ask_reconnect; | |
229 | } | |
230 | ||
231 | /* Handle IPv6 addresses. */ | |
232 | if (inet_pton(AF_INET6, argv[2]->arg, naddr) != 1) { | |
233 | vty_out(vty, "%% Invalid address: %s\n", argv[2]->arg); | |
234 | return CMD_WARNING; | |
235 | } | |
236 | ||
237 | sin6 = (struct sockaddr_in6 *)&gfnc->addr; | |
238 | memset(sin6, 0, sizeof(*sin6)); | |
239 | sin6->sin6_family = AF_INET6; | |
240 | sin6->sin6_port = port ? htons(port) : htons(SOUTHBOUND_DEFAULT_PORT); | |
241 | #ifdef HAVE_STRUCT_SOCKADDR_SA_LEN | |
242 | sin6->sin6_len = sizeof(*sin6); | |
243 | #endif /* HAVE_STRUCT_SOCKADDR_SA_LEN */ | |
244 | memcpy(&sin6->sin6_addr, naddr, sizeof(sin6->sin6_addr)); | |
245 | ||
246 | ask_reconnect: | |
247 | thread_add_event(gfnc->fthread->master, fpm_process_event, gfnc, | |
248 | FNE_RECONNECT, &gfnc->t_event); | |
249 | return CMD_SUCCESS; | |
250 | } | |
251 | ||
252 | DEFUN(no_fpm_set_address, no_fpm_set_address_cmd, | |
253 | "no fpm address [<A.B.C.D|X:X::X:X> [port <1-65535>]]", | |
254 | NO_STR | |
6cc059cd | 255 | FPM_STR |
3bdd7fca RZ |
256 | "FPM remote listening server address\n" |
257 | "Remote IPv4 FPM server\n" | |
258 | "Remote IPv6 FPM server\n" | |
259 | "FPM remote listening server port\n" | |
260 | "Remote FPM server port\n") | |
261 | { | |
262 | thread_add_event(gfnc->fthread->master, fpm_process_event, gfnc, | |
263 | FNE_DISABLE, &gfnc->t_event); | |
264 | return CMD_SUCCESS; | |
265 | } | |
266 | ||
b55ab92a RZ |
267 | DEFUN(fpm_use_nhg, fpm_use_nhg_cmd, |
268 | "fpm use-next-hop-groups", | |
269 | FPM_STR | |
270 | "Use netlink next hop groups feature.\n") | |
271 | { | |
272 | /* Already enabled. */ | |
273 | if (gfnc->use_nhg) | |
274 | return CMD_SUCCESS; | |
275 | ||
276 | thread_add_event(gfnc->fthread->master, fpm_process_event, gfnc, | |
277 | FNE_TOGGLE_NHG, &gfnc->t_event); | |
278 | ||
279 | return CMD_SUCCESS; | |
280 | } | |
281 | ||
282 | DEFUN(no_fpm_use_nhg, no_fpm_use_nhg_cmd, | |
283 | "no fpm use-next-hop-groups", | |
284 | NO_STR | |
285 | FPM_STR | |
286 | "Use netlink next hop groups feature.\n") | |
287 | { | |
288 | /* Already disabled. */ | |
289 | if (!gfnc->use_nhg) | |
290 | return CMD_SUCCESS; | |
291 | ||
292 | thread_add_event(gfnc->fthread->master, fpm_process_event, gfnc, | |
293 | FNE_TOGGLE_NHG, &gfnc->t_event); | |
294 | ||
295 | return CMD_SUCCESS; | |
296 | } | |
297 | ||
6cc059cd RZ |
298 | DEFUN(fpm_reset_counters, fpm_reset_counters_cmd, |
299 | "clear fpm counters", | |
300 | CLEAR_STR | |
301 | FPM_STR | |
302 | "FPM statistic counters\n") | |
303 | { | |
304 | thread_add_event(gfnc->fthread->master, fpm_process_event, gfnc, | |
305 | FNE_RESET_COUNTERS, &gfnc->t_event); | |
306 | return CMD_SUCCESS; | |
307 | } | |
308 | ||
309 | DEFUN(fpm_show_counters, fpm_show_counters_cmd, | |
310 | "show fpm counters", | |
311 | SHOW_STR | |
312 | FPM_STR | |
313 | "FPM statistic counters\n") | |
314 | { | |
315 | vty_out(vty, "%30s\n%30s\n", "FPM counters", "============"); | |
316 | ||
317 | #define SHOW_COUNTER(label, counter) \ | |
770a8d28 | 318 | vty_out(vty, "%28s: %u\n", (label), (counter)) |
6cc059cd RZ |
319 | |
320 | SHOW_COUNTER("Input bytes", gfnc->counters.bytes_read); | |
321 | SHOW_COUNTER("Output bytes", gfnc->counters.bytes_sent); | |
ad4d1022 RZ |
322 | SHOW_COUNTER("Output buffer current size", gfnc->counters.obuf_bytes); |
323 | SHOW_COUNTER("Output buffer peak size", gfnc->counters.obuf_peak); | |
6cc059cd RZ |
324 | SHOW_COUNTER("Connection closes", gfnc->counters.connection_closes); |
325 | SHOW_COUNTER("Connection errors", gfnc->counters.connection_errors); | |
326 | SHOW_COUNTER("Data plane items processed", | |
327 | gfnc->counters.dplane_contexts); | |
ba803a2f RZ |
328 | SHOW_COUNTER("Data plane items enqueued", |
329 | gfnc->counters.ctxqueue_len); | |
330 | SHOW_COUNTER("Data plane items queue peak", | |
331 | gfnc->counters.ctxqueue_len_peak); | |
6cc059cd RZ |
332 | SHOW_COUNTER("Buffer full hits", gfnc->counters.buffer_full); |
333 | SHOW_COUNTER("User FPM configurations", gfnc->counters.user_configures); | |
334 | SHOW_COUNTER("User FPM disable requests", gfnc->counters.user_disables); | |
335 | ||
336 | #undef SHOW_COUNTER | |
337 | ||
338 | return CMD_SUCCESS; | |
339 | } | |
340 | ||
341 | DEFUN(fpm_show_counters_json, fpm_show_counters_json_cmd, | |
342 | "show fpm counters json", | |
343 | SHOW_STR | |
344 | FPM_STR | |
345 | "FPM statistic counters\n" | |
346 | JSON_STR) | |
347 | { | |
348 | struct json_object *jo; | |
349 | ||
350 | jo = json_object_new_object(); | |
351 | json_object_int_add(jo, "bytes-read", gfnc->counters.bytes_read); | |
352 | json_object_int_add(jo, "bytes-sent", gfnc->counters.bytes_sent); | |
ad4d1022 RZ |
353 | json_object_int_add(jo, "obuf-bytes", gfnc->counters.obuf_bytes); |
354 | json_object_int_add(jo, "obuf-bytes-peak", gfnc->counters.obuf_peak); | |
a50404aa RZ |
355 | json_object_int_add(jo, "connection-closes", |
356 | gfnc->counters.connection_closes); | |
357 | json_object_int_add(jo, "connection-errors", | |
358 | gfnc->counters.connection_errors); | |
359 | json_object_int_add(jo, "data-plane-contexts", | |
360 | gfnc->counters.dplane_contexts); | |
ba803a2f RZ |
361 | json_object_int_add(jo, "data-plane-contexts-queue", |
362 | gfnc->counters.ctxqueue_len); | |
363 | json_object_int_add(jo, "data-plane-contexts-queue-peak", | |
364 | gfnc->counters.ctxqueue_len_peak); | |
6cc059cd | 365 | json_object_int_add(jo, "buffer-full-hits", gfnc->counters.buffer_full); |
a50404aa RZ |
366 | json_object_int_add(jo, "user-configures", |
367 | gfnc->counters.user_configures); | |
6cc059cd RZ |
368 | json_object_int_add(jo, "user-disables", gfnc->counters.user_disables); |
369 | vty_out(vty, "%s\n", json_object_to_json_string_ext(jo, 0)); | |
370 | json_object_free(jo); | |
371 | ||
372 | return CMD_SUCCESS; | |
373 | } | |
374 | ||
3bdd7fca RZ |
375 | static int fpm_write_config(struct vty *vty) |
376 | { | |
377 | struct sockaddr_in *sin; | |
378 | struct sockaddr_in6 *sin6; | |
379 | int written = 0; | |
380 | char addrstr[INET6_ADDRSTRLEN]; | |
381 | ||
382 | if (gfnc->disabled) | |
383 | return written; | |
384 | ||
385 | switch (gfnc->addr.ss_family) { | |
386 | case AF_INET: | |
387 | written = 1; | |
388 | sin = (struct sockaddr_in *)&gfnc->addr; | |
389 | inet_ntop(AF_INET, &sin->sin_addr, addrstr, sizeof(addrstr)); | |
390 | vty_out(vty, "fpm address %s", addrstr); | |
391 | if (sin->sin_port != htons(SOUTHBOUND_DEFAULT_PORT)) | |
392 | vty_out(vty, " port %d", ntohs(sin->sin_port)); | |
393 | ||
394 | vty_out(vty, "\n"); | |
395 | break; | |
396 | case AF_INET6: | |
397 | written = 1; | |
398 | sin6 = (struct sockaddr_in6 *)&gfnc->addr; | |
399 | inet_ntop(AF_INET, &sin6->sin6_addr, addrstr, sizeof(addrstr)); | |
400 | vty_out(vty, "fpm address %s", addrstr); | |
401 | if (sin6->sin6_port != htons(SOUTHBOUND_DEFAULT_PORT)) | |
402 | vty_out(vty, " port %d", ntohs(sin6->sin6_port)); | |
403 | ||
404 | vty_out(vty, "\n"); | |
405 | break; | |
406 | ||
407 | default: | |
408 | break; | |
409 | } | |
410 | ||
b55ab92a RZ |
411 | if (!gfnc->use_nhg) { |
412 | vty_out(vty, "no fpm use-next-hop-groups\n"); | |
413 | written = 1; | |
414 | } | |
415 | ||
3bdd7fca RZ |
416 | return written; |
417 | } | |
418 | ||
612c2c15 | 419 | static struct cmd_node fpm_node = { |
893d8beb DL |
420 | .name = "fpm", |
421 | .node = FPM_NODE, | |
3bdd7fca | 422 | .prompt = "", |
612c2c15 | 423 | .config_write = fpm_write_config, |
3bdd7fca RZ |
424 | }; |
425 | ||
d35f447d RZ |
426 | /* |
427 | * FPM functions. | |
428 | */ | |
429 | static int fpm_connect(struct thread *t); | |
430 | ||
431 | static void fpm_reconnect(struct fpm_nl_ctx *fnc) | |
432 | { | |
a2032324 | 433 | /* Cancel all zebra threads first. */ |
f9bf1ecc DE |
434 | thread_cancel_async(zrouter.master, &fnc->t_lspreset, NULL); |
435 | thread_cancel_async(zrouter.master, &fnc->t_lspwalk, NULL); | |
a2032324 RZ |
436 | thread_cancel_async(zrouter.master, &fnc->t_nhgreset, NULL); |
437 | thread_cancel_async(zrouter.master, &fnc->t_nhgwalk, NULL); | |
438 | thread_cancel_async(zrouter.master, &fnc->t_ribreset, NULL); | |
439 | thread_cancel_async(zrouter.master, &fnc->t_ribwalk, NULL); | |
440 | thread_cancel_async(zrouter.master, &fnc->t_rmacreset, NULL); | |
441 | thread_cancel_async(zrouter.master, &fnc->t_rmacwalk, NULL); | |
442 | ||
443 | /* | |
444 | * Grab the lock to empty the streams (data plane might try to | |
445 | * enqueue updates while we are closing). | |
446 | */ | |
d35f447d RZ |
447 | frr_mutex_lock_autounlock(&fnc->obuf_mutex); |
448 | ||
3bdd7fca RZ |
449 | /* Avoid calling close on `-1`. */ |
450 | if (fnc->socket != -1) { | |
451 | close(fnc->socket); | |
452 | fnc->socket = -1; | |
453 | } | |
454 | ||
d35f447d RZ |
455 | stream_reset(fnc->ibuf); |
456 | stream_reset(fnc->obuf); | |
457 | THREAD_OFF(fnc->t_read); | |
458 | THREAD_OFF(fnc->t_write); | |
018e77bc | 459 | |
3bdd7fca RZ |
460 | /* FPM is disabled, don't attempt to connect. */ |
461 | if (fnc->disabled) | |
462 | return; | |
463 | ||
d35f447d RZ |
464 | thread_add_timer(fnc->fthread->master, fpm_connect, fnc, 3, |
465 | &fnc->t_connect); | |
466 | } | |
467 | ||
468 | static int fpm_read(struct thread *t) | |
469 | { | |
470 | struct fpm_nl_ctx *fnc = THREAD_ARG(t); | |
471 | ssize_t rv; | |
472 | ||
473 | /* Let's ignore the input at the moment. */ | |
474 | rv = stream_read_try(fnc->ibuf, fnc->socket, | |
475 | STREAM_WRITEABLE(fnc->ibuf)); | |
e1afb97f RZ |
476 | /* We've got an interruption. */ |
477 | if (rv == -2) { | |
478 | /* Schedule next read. */ | |
479 | thread_add_read(fnc->fthread->master, fpm_read, fnc, | |
480 | fnc->socket, &fnc->t_read); | |
481 | return 0; | |
482 | } | |
d35f447d | 483 | if (rv == 0) { |
c871e6c9 RZ |
484 | atomic_fetch_add_explicit(&fnc->counters.connection_closes, 1, |
485 | memory_order_relaxed); | |
e5e444d8 RZ |
486 | |
487 | if (IS_ZEBRA_DEBUG_FPM) | |
488 | zlog_debug("%s: connection closed", __func__); | |
489 | ||
a2032324 | 490 | FPM_RECONNECT(fnc); |
d35f447d RZ |
491 | return 0; |
492 | } | |
493 | if (rv == -1) { | |
c871e6c9 RZ |
494 | atomic_fetch_add_explicit(&fnc->counters.connection_errors, 1, |
495 | memory_order_relaxed); | |
e5e444d8 RZ |
496 | zlog_warn("%s: connection failure: %s", __func__, |
497 | strerror(errno)); | |
a2032324 | 498 | FPM_RECONNECT(fnc); |
d35f447d RZ |
499 | return 0; |
500 | } | |
501 | stream_reset(fnc->ibuf); | |
502 | ||
6cc059cd | 503 | /* Account all bytes read. */ |
c871e6c9 RZ |
504 | atomic_fetch_add_explicit(&fnc->counters.bytes_read, rv, |
505 | memory_order_relaxed); | |
6cc059cd | 506 | |
d35f447d RZ |
507 | thread_add_read(fnc->fthread->master, fpm_read, fnc, fnc->socket, |
508 | &fnc->t_read); | |
509 | ||
510 | return 0; | |
511 | } | |
512 | ||
513 | static int fpm_write(struct thread *t) | |
514 | { | |
515 | struct fpm_nl_ctx *fnc = THREAD_ARG(t); | |
516 | socklen_t statuslen; | |
517 | ssize_t bwritten; | |
518 | int rv, status; | |
519 | size_t btotal; | |
520 | ||
521 | if (fnc->connecting == true) { | |
522 | status = 0; | |
523 | statuslen = sizeof(status); | |
524 | ||
525 | rv = getsockopt(fnc->socket, SOL_SOCKET, SO_ERROR, &status, | |
526 | &statuslen); | |
527 | if (rv == -1 || status != 0) { | |
528 | if (rv != -1) | |
e5e444d8 RZ |
529 | zlog_warn("%s: connection failed: %s", __func__, |
530 | strerror(status)); | |
d35f447d | 531 | else |
e5e444d8 RZ |
532 | zlog_warn("%s: SO_ERROR failed: %s", __func__, |
533 | strerror(status)); | |
d35f447d | 534 | |
c871e6c9 RZ |
535 | atomic_fetch_add_explicit( |
536 | &fnc->counters.connection_errors, 1, | |
537 | memory_order_relaxed); | |
6cc059cd | 538 | |
a2032324 | 539 | FPM_RECONNECT(fnc); |
d35f447d RZ |
540 | return 0; |
541 | } | |
542 | ||
543 | fnc->connecting = false; | |
018e77bc | 544 | |
e1afb97f RZ |
545 | /* Permit receiving messages now. */ |
546 | thread_add_read(fnc->fthread->master, fpm_read, fnc, | |
547 | fnc->socket, &fnc->t_read); | |
d35f447d RZ |
548 | } |
549 | ||
550 | frr_mutex_lock_autounlock(&fnc->obuf_mutex); | |
551 | ||
552 | while (true) { | |
553 | /* Stream is empty: reset pointers and return. */ | |
554 | if (STREAM_READABLE(fnc->obuf) == 0) { | |
555 | stream_reset(fnc->obuf); | |
556 | break; | |
557 | } | |
558 | ||
559 | /* Try to write all at once. */ | |
560 | btotal = stream_get_endp(fnc->obuf) - | |
561 | stream_get_getp(fnc->obuf); | |
562 | bwritten = write(fnc->socket, stream_pnt(fnc->obuf), btotal); | |
563 | if (bwritten == 0) { | |
c871e6c9 RZ |
564 | atomic_fetch_add_explicit( |
565 | &fnc->counters.connection_closes, 1, | |
566 | memory_order_relaxed); | |
e5e444d8 RZ |
567 | |
568 | if (IS_ZEBRA_DEBUG_FPM) | |
569 | zlog_debug("%s: connection closed", __func__); | |
d35f447d RZ |
570 | break; |
571 | } | |
572 | if (bwritten == -1) { | |
ad4d1022 RZ |
573 | /* Attempt to continue if blocked by a signal. */ |
574 | if (errno == EINTR) | |
575 | continue; | |
576 | /* Receiver is probably slow, lets give it some time. */ | |
577 | if (errno == EAGAIN || errno == EWOULDBLOCK) | |
d35f447d RZ |
578 | break; |
579 | ||
c871e6c9 RZ |
580 | atomic_fetch_add_explicit( |
581 | &fnc->counters.connection_errors, 1, | |
582 | memory_order_relaxed); | |
e5e444d8 RZ |
583 | zlog_warn("%s: connection failure: %s", __func__, |
584 | strerror(errno)); | |
a2032324 RZ |
585 | |
586 | FPM_RECONNECT(fnc); | |
587 | return 0; | |
d35f447d RZ |
588 | } |
589 | ||
6cc059cd | 590 | /* Account all bytes sent. */ |
c871e6c9 RZ |
591 | atomic_fetch_add_explicit(&fnc->counters.bytes_sent, bwritten, |
592 | memory_order_relaxed); | |
6cc059cd | 593 | |
ad4d1022 | 594 | /* Account number of bytes free. */ |
c871e6c9 RZ |
595 | atomic_fetch_sub_explicit(&fnc->counters.obuf_bytes, bwritten, |
596 | memory_order_relaxed); | |
ad4d1022 | 597 | |
d35f447d RZ |
598 | stream_forward_getp(fnc->obuf, (size_t)bwritten); |
599 | } | |
600 | ||
601 | /* Stream is not empty yet, we must schedule more writes. */ | |
602 | if (STREAM_READABLE(fnc->obuf)) { | |
ad4d1022 | 603 | stream_pulldown(fnc->obuf); |
d35f447d RZ |
604 | thread_add_write(fnc->fthread->master, fpm_write, fnc, |
605 | fnc->socket, &fnc->t_write); | |
606 | return 0; | |
607 | } | |
608 | ||
609 | return 0; | |
610 | } | |
611 | ||
612 | static int fpm_connect(struct thread *t) | |
613 | { | |
614 | struct fpm_nl_ctx *fnc = THREAD_ARG(t); | |
3bdd7fca RZ |
615 | struct sockaddr_in *sin = (struct sockaddr_in *)&fnc->addr; |
616 | struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)&fnc->addr; | |
617 | socklen_t slen; | |
d35f447d RZ |
618 | int rv, sock; |
619 | char addrstr[INET6_ADDRSTRLEN]; | |
620 | ||
3bdd7fca | 621 | sock = socket(fnc->addr.ss_family, SOCK_STREAM, 0); |
d35f447d | 622 | if (sock == -1) { |
6cc059cd | 623 | zlog_err("%s: fpm socket failed: %s", __func__, |
d35f447d RZ |
624 | strerror(errno)); |
625 | thread_add_timer(fnc->fthread->master, fpm_connect, fnc, 3, | |
626 | &fnc->t_connect); | |
627 | return 0; | |
628 | } | |
629 | ||
630 | set_nonblocking(sock); | |
631 | ||
3bdd7fca RZ |
632 | if (fnc->addr.ss_family == AF_INET) { |
633 | inet_ntop(AF_INET, &sin->sin_addr, addrstr, sizeof(addrstr)); | |
634 | slen = sizeof(*sin); | |
635 | } else { | |
636 | inet_ntop(AF_INET6, &sin6->sin6_addr, addrstr, sizeof(addrstr)); | |
637 | slen = sizeof(*sin6); | |
638 | } | |
d35f447d | 639 | |
e5e444d8 RZ |
640 | if (IS_ZEBRA_DEBUG_FPM) |
641 | zlog_debug("%s: attempting to connect to %s:%d", __func__, | |
642 | addrstr, ntohs(sin->sin_port)); | |
d35f447d | 643 | |
3bdd7fca | 644 | rv = connect(sock, (struct sockaddr *)&fnc->addr, slen); |
d35f447d | 645 | if (rv == -1 && errno != EINPROGRESS) { |
c871e6c9 RZ |
646 | atomic_fetch_add_explicit(&fnc->counters.connection_errors, 1, |
647 | memory_order_relaxed); | |
d35f447d RZ |
648 | close(sock); |
649 | zlog_warn("%s: fpm connection failed: %s", __func__, | |
650 | strerror(errno)); | |
651 | thread_add_timer(fnc->fthread->master, fpm_connect, fnc, 3, | |
652 | &fnc->t_connect); | |
653 | return 0; | |
654 | } | |
655 | ||
656 | fnc->connecting = (errno == EINPROGRESS); | |
657 | fnc->socket = sock; | |
e1afb97f RZ |
658 | if (!fnc->connecting) |
659 | thread_add_read(fnc->fthread->master, fpm_read, fnc, sock, | |
660 | &fnc->t_read); | |
d35f447d RZ |
661 | thread_add_write(fnc->fthread->master, fpm_write, fnc, sock, |
662 | &fnc->t_write); | |
663 | ||
f9bf1ecc DE |
664 | /* |
665 | * Starting with LSPs walk all FPM objects, marking them | |
666 | * as unsent and then replaying them. | |
667 | */ | |
668 | thread_add_timer(zrouter.master, fpm_lsp_reset, fnc, 0, | |
669 | &fnc->t_lspreset); | |
018e77bc | 670 | |
d35f447d RZ |
671 | return 0; |
672 | } | |
673 | ||
674 | /** | |
675 | * Encode data plane operation context into netlink and enqueue it in the FPM | |
676 | * output buffer. | |
677 | * | |
678 | * @param fnc the netlink FPM context. | |
679 | * @param ctx the data plane operation context data. | |
680 | * @return 0 on success or -1 on not enough space. | |
681 | */ | |
682 | static int fpm_nl_enqueue(struct fpm_nl_ctx *fnc, struct zebra_dplane_ctx *ctx) | |
683 | { | |
684 | uint8_t nl_buf[NL_PKT_BUF_SIZE]; | |
685 | size_t nl_buf_len; | |
686 | ssize_t rv; | |
edfeff42 | 687 | uint64_t obytes, obytes_peak; |
b55ab92a RZ |
688 | enum dplane_op_e op = dplane_ctx_get_op(ctx); |
689 | ||
690 | /* | |
691 | * If we were configured to not use next hop groups, then quit as soon | |
692 | * as possible. | |
693 | */ | |
694 | if ((!fnc->use_nhg) | |
695 | && (op == DPLANE_OP_NH_DELETE || op == DPLANE_OP_NH_INSTALL | |
696 | || op == DPLANE_OP_NH_UPDATE)) | |
697 | return 0; | |
d35f447d RZ |
698 | |
699 | nl_buf_len = 0; | |
700 | ||
701 | frr_mutex_lock_autounlock(&fnc->obuf_mutex); | |
702 | ||
b55ab92a | 703 | switch (op) { |
d35f447d RZ |
704 | case DPLANE_OP_ROUTE_UPDATE: |
705 | case DPLANE_OP_ROUTE_DELETE: | |
0be6e7d7 JU |
706 | rv = netlink_route_multipath_msg_encode(RTM_DELROUTE, ctx, |
707 | nl_buf, sizeof(nl_buf), | |
708 | true, fnc->use_nhg); | |
d35f447d | 709 | if (rv <= 0) { |
0be6e7d7 JU |
710 | zlog_err( |
711 | "%s: netlink_route_multipath_msg_encode failed", | |
712 | __func__); | |
d35f447d RZ |
713 | return 0; |
714 | } | |
715 | ||
716 | nl_buf_len = (size_t)rv; | |
d35f447d RZ |
717 | |
718 | /* UPDATE operations need a INSTALL, otherwise just quit. */ | |
b55ab92a | 719 | if (op == DPLANE_OP_ROUTE_DELETE) |
d35f447d RZ |
720 | break; |
721 | ||
722 | /* FALL THROUGH */ | |
723 | case DPLANE_OP_ROUTE_INSTALL: | |
0be6e7d7 | 724 | rv = netlink_route_multipath_msg_encode( |
b55ab92a RZ |
725 | RTM_NEWROUTE, ctx, &nl_buf[nl_buf_len], |
726 | sizeof(nl_buf) - nl_buf_len, true, fnc->use_nhg); | |
d35f447d | 727 | if (rv <= 0) { |
0be6e7d7 JU |
728 | zlog_err( |
729 | "%s: netlink_route_multipath_msg_encode failed", | |
730 | __func__); | |
d35f447d RZ |
731 | return 0; |
732 | } | |
733 | ||
734 | nl_buf_len += (size_t)rv; | |
d35f447d RZ |
735 | break; |
736 | ||
bda10adf RZ |
737 | case DPLANE_OP_MAC_INSTALL: |
738 | case DPLANE_OP_MAC_DELETE: | |
739 | rv = netlink_macfdb_update_ctx(ctx, nl_buf, sizeof(nl_buf)); | |
740 | if (rv <= 0) { | |
e5e444d8 RZ |
741 | zlog_err("%s: netlink_macfdb_update_ctx failed", |
742 | __func__); | |
bda10adf RZ |
743 | return 0; |
744 | } | |
745 | ||
746 | nl_buf_len = (size_t)rv; | |
bda10adf RZ |
747 | break; |
748 | ||
e9a1cd93 | 749 | case DPLANE_OP_NH_DELETE: |
0be6e7d7 JU |
750 | rv = netlink_nexthop_msg_encode(RTM_DELNEXTHOP, ctx, nl_buf, |
751 | sizeof(nl_buf)); | |
e9a1cd93 | 752 | if (rv <= 0) { |
0be6e7d7 JU |
753 | zlog_err("%s: netlink_nexthop_msg_encode failed", |
754 | __func__); | |
e9a1cd93 RZ |
755 | return 0; |
756 | } | |
757 | ||
758 | nl_buf_len = (size_t)rv; | |
759 | break; | |
d35f447d RZ |
760 | case DPLANE_OP_NH_INSTALL: |
761 | case DPLANE_OP_NH_UPDATE: | |
0be6e7d7 JU |
762 | rv = netlink_nexthop_msg_encode(RTM_NEWNEXTHOP, ctx, nl_buf, |
763 | sizeof(nl_buf)); | |
e9a1cd93 | 764 | if (rv <= 0) { |
0be6e7d7 JU |
765 | zlog_err("%s: netlink_nexthop_msg_encode failed", |
766 | __func__); | |
e9a1cd93 RZ |
767 | return 0; |
768 | } | |
769 | ||
770 | nl_buf_len = (size_t)rv; | |
771 | break; | |
772 | ||
d35f447d RZ |
773 | case DPLANE_OP_LSP_INSTALL: |
774 | case DPLANE_OP_LSP_UPDATE: | |
775 | case DPLANE_OP_LSP_DELETE: | |
b300c8bb DE |
776 | rv = netlink_lsp_msg_encoder(ctx, nl_buf, sizeof(nl_buf)); |
777 | if (rv <= 0) { | |
f9bf1ecc DE |
778 | zlog_err("%s: netlink_lsp_msg_encoder failed", |
779 | __func__); | |
b300c8bb DE |
780 | return 0; |
781 | } | |
782 | ||
783 | nl_buf_len += (size_t)rv; | |
784 | break; | |
785 | ||
d35f447d RZ |
786 | case DPLANE_OP_PW_INSTALL: |
787 | case DPLANE_OP_PW_UNINSTALL: | |
788 | case DPLANE_OP_ADDR_INSTALL: | |
789 | case DPLANE_OP_ADDR_UNINSTALL: | |
d35f447d RZ |
790 | case DPLANE_OP_NEIGH_INSTALL: |
791 | case DPLANE_OP_NEIGH_UPDATE: | |
792 | case DPLANE_OP_NEIGH_DELETE: | |
793 | case DPLANE_OP_VTEP_ADD: | |
794 | case DPLANE_OP_VTEP_DELETE: | |
795 | case DPLANE_OP_SYS_ROUTE_ADD: | |
796 | case DPLANE_OP_SYS_ROUTE_DELETE: | |
797 | case DPLANE_OP_ROUTE_NOTIFY: | |
798 | case DPLANE_OP_LSP_NOTIFY: | |
799 | case DPLANE_OP_NONE: | |
800 | break; | |
801 | ||
802 | default: | |
e5e444d8 RZ |
803 | if (IS_ZEBRA_DEBUG_FPM) |
804 | zlog_debug("%s: unhandled data plane message (%d) %s", | |
805 | __func__, dplane_ctx_get_op(ctx), | |
806 | dplane_op2str(dplane_ctx_get_op(ctx))); | |
d35f447d RZ |
807 | break; |
808 | } | |
809 | ||
810 | /* Skip empty enqueues. */ | |
811 | if (nl_buf_len == 0) | |
812 | return 0; | |
813 | ||
a179ba35 RZ |
814 | /* We must know if someday a message goes beyond 65KiB. */ |
815 | assert((nl_buf_len + FPM_HEADER_SIZE) <= UINT16_MAX); | |
816 | ||
817 | /* Check if we have enough buffer space. */ | |
818 | if (STREAM_WRITEABLE(fnc->obuf) < (nl_buf_len + FPM_HEADER_SIZE)) { | |
c871e6c9 RZ |
819 | atomic_fetch_add_explicit(&fnc->counters.buffer_full, 1, |
820 | memory_order_relaxed); | |
e5e444d8 RZ |
821 | |
822 | if (IS_ZEBRA_DEBUG_FPM) | |
823 | zlog_debug( | |
824 | "%s: buffer full: wants to write %zu but has %zu", | |
825 | __func__, nl_buf_len + FPM_HEADER_SIZE, | |
826 | STREAM_WRITEABLE(fnc->obuf)); | |
827 | ||
a179ba35 RZ |
828 | return -1; |
829 | } | |
830 | ||
d35f447d | 831 | /* |
a179ba35 RZ |
832 | * Fill in the FPM header information. |
833 | * | |
834 | * See FPM_HEADER_SIZE definition for more information. | |
d35f447d RZ |
835 | */ |
836 | stream_putc(fnc->obuf, 1); | |
837 | stream_putc(fnc->obuf, 1); | |
a179ba35 | 838 | stream_putw(fnc->obuf, nl_buf_len + FPM_HEADER_SIZE); |
d35f447d RZ |
839 | |
840 | /* Write current data. */ | |
841 | stream_write(fnc->obuf, nl_buf, (size_t)nl_buf_len); | |
842 | ||
ad4d1022 | 843 | /* Account number of bytes waiting to be written. */ |
c871e6c9 RZ |
844 | atomic_fetch_add_explicit(&fnc->counters.obuf_bytes, |
845 | nl_buf_len + FPM_HEADER_SIZE, | |
846 | memory_order_relaxed); | |
edfeff42 RZ |
847 | obytes = atomic_load_explicit(&fnc->counters.obuf_bytes, |
848 | memory_order_relaxed); | |
849 | obytes_peak = atomic_load_explicit(&fnc->counters.obuf_peak, | |
850 | memory_order_relaxed); | |
851 | if (obytes_peak < obytes) | |
c871e6c9 RZ |
852 | atomic_store_explicit(&fnc->counters.obuf_peak, obytes, |
853 | memory_order_relaxed); | |
ad4d1022 | 854 | |
d35f447d RZ |
855 | /* Tell the thread to start writing. */ |
856 | thread_add_write(fnc->fthread->master, fpm_write, fnc, fnc->socket, | |
857 | &fnc->t_write); | |
858 | ||
859 | return 0; | |
860 | } | |
861 | ||
f9bf1ecc DE |
862 | /* |
863 | * LSP walk/send functions | |
864 | */ | |
865 | struct fpm_lsp_arg { | |
866 | struct zebra_dplane_ctx *ctx; | |
867 | struct fpm_nl_ctx *fnc; | |
868 | bool complete; | |
869 | }; | |
870 | ||
871 | static int fpm_lsp_send_cb(struct hash_bucket *bucket, void *arg) | |
872 | { | |
873 | zebra_lsp_t *lsp = bucket->data; | |
874 | struct fpm_lsp_arg *fla = arg; | |
875 | ||
876 | /* Skip entries which have already been sent */ | |
877 | if (CHECK_FLAG(lsp->flags, LSP_FLAG_FPM)) | |
878 | return HASHWALK_CONTINUE; | |
879 | ||
880 | dplane_ctx_reset(fla->ctx); | |
881 | dplane_ctx_lsp_init(fla->ctx, DPLANE_OP_LSP_INSTALL, lsp); | |
882 | ||
883 | if (fpm_nl_enqueue(fla->fnc, fla->ctx) == -1) { | |
884 | fla->complete = false; | |
885 | return HASHWALK_ABORT; | |
886 | } | |
887 | ||
888 | /* Mark entry as sent */ | |
889 | SET_FLAG(lsp->flags, LSP_FLAG_FPM); | |
890 | return HASHWALK_CONTINUE; | |
891 | } | |
892 | ||
893 | static int fpm_lsp_send(struct thread *t) | |
894 | { | |
895 | struct fpm_nl_ctx *fnc = THREAD_ARG(t); | |
896 | struct zebra_vrf *zvrf = vrf_info_lookup(VRF_DEFAULT); | |
897 | struct fpm_lsp_arg fla; | |
898 | ||
899 | fla.fnc = fnc; | |
900 | fla.ctx = dplane_ctx_alloc(); | |
901 | fla.complete = true; | |
902 | ||
903 | hash_walk(zvrf->lsp_table, fpm_lsp_send_cb, &fla); | |
904 | ||
905 | dplane_ctx_fini(&fla.ctx); | |
906 | ||
907 | if (fla.complete) { | |
908 | WALK_FINISH(fnc, FNE_LSP_FINISHED); | |
909 | ||
910 | /* Now move onto routes */ | |
911 | if (fnc->use_nhg) | |
912 | thread_add_timer(zrouter.master, fpm_nhg_reset, fnc, 0, | |
913 | &fnc->t_nhgreset); | |
914 | else | |
915 | thread_add_timer(zrouter.master, fpm_rib_reset, fnc, 0, | |
916 | &fnc->t_ribreset); | |
917 | } else { | |
918 | /* Didn't finish - reschedule LSP walk */ | |
919 | thread_add_timer(zrouter.master, fpm_lsp_send, fnc, 0, | |
920 | &fnc->t_lspwalk); | |
921 | } | |
922 | ||
923 | return 0; | |
924 | } | |
925 | ||
981ca597 RZ |
926 | /* |
927 | * Next hop walk/send functions. | |
928 | */ | |
929 | struct fpm_nhg_arg { | |
930 | struct zebra_dplane_ctx *ctx; | |
931 | struct fpm_nl_ctx *fnc; | |
932 | bool complete; | |
933 | }; | |
934 | ||
935 | static int fpm_nhg_send_cb(struct hash_bucket *bucket, void *arg) | |
936 | { | |
937 | struct nhg_hash_entry *nhe = bucket->data; | |
938 | struct fpm_nhg_arg *fna = arg; | |
939 | ||
940 | /* This entry was already sent, skip it. */ | |
941 | if (CHECK_FLAG(nhe->flags, NEXTHOP_GROUP_FPM)) | |
942 | return HASHWALK_CONTINUE; | |
943 | ||
944 | /* Reset ctx to reuse allocated memory, take a snapshot and send it. */ | |
945 | dplane_ctx_reset(fna->ctx); | |
946 | dplane_ctx_nexthop_init(fna->ctx, DPLANE_OP_NH_INSTALL, nhe); | |
947 | if (fpm_nl_enqueue(fna->fnc, fna->ctx) == -1) { | |
948 | /* Our buffers are full, lets give it some cycles. */ | |
949 | fna->complete = false; | |
950 | return HASHWALK_ABORT; | |
951 | } | |
952 | ||
953 | /* Mark group as sent, so it doesn't get sent again. */ | |
954 | SET_FLAG(nhe->flags, NEXTHOP_GROUP_FPM); | |
955 | ||
956 | return HASHWALK_CONTINUE; | |
957 | } | |
958 | ||
959 | static int fpm_nhg_send(struct thread *t) | |
960 | { | |
961 | struct fpm_nl_ctx *fnc = THREAD_ARG(t); | |
962 | struct fpm_nhg_arg fna; | |
963 | ||
964 | fna.fnc = fnc; | |
965 | fna.ctx = dplane_ctx_alloc(); | |
966 | fna.complete = true; | |
967 | ||
968 | /* Send next hops. */ | |
969 | hash_walk(zrouter.nhgs_id, fpm_nhg_send_cb, &fna); | |
970 | ||
971 | /* `free()` allocated memory. */ | |
972 | dplane_ctx_fini(&fna.ctx); | |
973 | ||
974 | /* We are done sending next hops, lets install the routes now. */ | |
55eb9d4d RZ |
975 | if (fna.complete) { |
976 | WALK_FINISH(fnc, FNE_NHG_FINISHED); | |
e41e0f81 RZ |
977 | thread_add_timer(zrouter.master, fpm_rib_reset, fnc, 0, |
978 | &fnc->t_ribreset); | |
55eb9d4d | 979 | } else /* Otherwise reschedule next hop group again. */ |
981ca597 RZ |
980 | thread_add_timer(zrouter.master, fpm_nhg_send, fnc, 0, |
981 | &fnc->t_nhgwalk); | |
982 | ||
983 | return 0; | |
984 | } | |
985 | ||
018e77bc RZ |
986 | /** |
987 | * Send all RIB installed routes to the connected data plane. | |
988 | */ | |
989 | static int fpm_rib_send(struct thread *t) | |
990 | { | |
991 | struct fpm_nl_ctx *fnc = THREAD_ARG(t); | |
992 | rib_dest_t *dest; | |
993 | struct route_node *rn; | |
994 | struct route_table *rt; | |
995 | struct zebra_dplane_ctx *ctx; | |
996 | rib_tables_iter_t rt_iter; | |
997 | ||
998 | /* Allocate temporary context for all transactions. */ | |
999 | ctx = dplane_ctx_alloc(); | |
1000 | ||
1001 | rt_iter.state = RIB_TABLES_ITER_S_INIT; | |
1002 | while ((rt = rib_tables_iter_next(&rt_iter))) { | |
1003 | for (rn = route_top(rt); rn; rn = srcdest_route_next(rn)) { | |
1004 | dest = rib_dest_from_rnode(rn); | |
1005 | /* Skip bad route entries. */ | |
a50404aa | 1006 | if (dest == NULL || dest->selected_fib == NULL) |
018e77bc | 1007 | continue; |
018e77bc RZ |
1008 | |
1009 | /* Check for already sent routes. */ | |
a50404aa | 1010 | if (CHECK_FLAG(dest->flags, RIB_DEST_UPDATE_FPM)) |
018e77bc | 1011 | continue; |
018e77bc RZ |
1012 | |
1013 | /* Enqueue route install. */ | |
1014 | dplane_ctx_reset(ctx); | |
1015 | dplane_ctx_route_init(ctx, DPLANE_OP_ROUTE_INSTALL, rn, | |
1016 | dest->selected_fib); | |
1017 | if (fpm_nl_enqueue(fnc, ctx) == -1) { | |
1018 | /* Free the temporary allocated context. */ | |
1019 | dplane_ctx_fini(&ctx); | |
1020 | ||
018e77bc RZ |
1021 | thread_add_timer(zrouter.master, fpm_rib_send, |
1022 | fnc, 1, &fnc->t_ribwalk); | |
1023 | return 0; | |
1024 | } | |
1025 | ||
1026 | /* Mark as sent. */ | |
1027 | SET_FLAG(dest->flags, RIB_DEST_UPDATE_FPM); | |
1028 | } | |
1029 | } | |
1030 | ||
1031 | /* Free the temporary allocated context. */ | |
1032 | dplane_ctx_fini(&ctx); | |
1033 | ||
1034 | /* All RIB routes sent! */ | |
55eb9d4d | 1035 | WALK_FINISH(fnc, FNE_RIB_FINISHED); |
018e77bc | 1036 | |
e41e0f81 RZ |
1037 | /* Schedule next event: RMAC reset. */ |
1038 | thread_add_event(zrouter.master, fpm_rmac_reset, fnc, 0, | |
1039 | &fnc->t_rmacreset); | |
1040 | ||
018e77bc RZ |
1041 | return 0; |
1042 | } | |
1043 | ||
bda10adf RZ |
1044 | /* |
1045 | * The next three functions will handle RMAC enqueue. | |
1046 | */ | |
1047 | struct fpm_rmac_arg { | |
1048 | struct zebra_dplane_ctx *ctx; | |
1049 | struct fpm_nl_ctx *fnc; | |
1050 | zebra_l3vni_t *zl3vni; | |
55eb9d4d | 1051 | bool complete; |
bda10adf RZ |
1052 | }; |
1053 | ||
9d5c3268 | 1054 | static void fpm_enqueue_rmac_table(struct hash_bucket *backet, void *arg) |
bda10adf RZ |
1055 | { |
1056 | struct fpm_rmac_arg *fra = arg; | |
1057 | zebra_mac_t *zrmac = backet->data; | |
1058 | struct zebra_if *zif = fra->zl3vni->vxlan_if->info; | |
1059 | const struct zebra_l2info_vxlan *vxl = &zif->l2info.vxl; | |
1060 | struct zebra_if *br_zif; | |
1061 | vlanid_t vid; | |
1062 | bool sticky; | |
1063 | ||
1064 | /* Entry already sent. */ | |
55eb9d4d | 1065 | if (CHECK_FLAG(zrmac->flags, ZEBRA_MAC_FPM_SENT) || !fra->complete) |
bda10adf RZ |
1066 | return; |
1067 | ||
1068 | sticky = !!CHECK_FLAG(zrmac->flags, | |
1069 | (ZEBRA_MAC_STICKY | ZEBRA_MAC_REMOTE_DEF_GW)); | |
1070 | br_zif = (struct zebra_if *)(zif->brslave_info.br_if->info); | |
1071 | vid = IS_ZEBRA_IF_BRIDGE_VLAN_AWARE(br_zif) ? vxl->access_vlan : 0; | |
1072 | ||
1073 | dplane_ctx_reset(fra->ctx); | |
1074 | dplane_ctx_set_op(fra->ctx, DPLANE_OP_MAC_INSTALL); | |
1075 | dplane_mac_init(fra->ctx, fra->zl3vni->vxlan_if, | |
f2a0ba3a | 1076 | zif->brslave_info.br_if, vid, |
f188e68e AK |
1077 | &zrmac->macaddr, zrmac->fwd_info.r_vtep_ip, sticky, |
1078 | 0 /*nhg*/, 0 /*update_flags*/); | |
bda10adf | 1079 | if (fpm_nl_enqueue(fra->fnc, fra->ctx) == -1) { |
bda10adf RZ |
1080 | thread_add_timer(zrouter.master, fpm_rmac_send, |
1081 | fra->fnc, 1, &fra->fnc->t_rmacwalk); | |
55eb9d4d | 1082 | fra->complete = false; |
bda10adf RZ |
1083 | } |
1084 | } | |
1085 | ||
9d5c3268 | 1086 | static void fpm_enqueue_l3vni_table(struct hash_bucket *backet, void *arg) |
bda10adf RZ |
1087 | { |
1088 | struct fpm_rmac_arg *fra = arg; | |
1089 | zebra_l3vni_t *zl3vni = backet->data; | |
1090 | ||
1091 | fra->zl3vni = zl3vni; | |
1092 | hash_iterate(zl3vni->rmac_table, fpm_enqueue_rmac_table, zl3vni); | |
1093 | } | |
1094 | ||
1095 | static int fpm_rmac_send(struct thread *t) | |
1096 | { | |
1097 | struct fpm_rmac_arg fra; | |
1098 | ||
1099 | fra.fnc = THREAD_ARG(t); | |
1100 | fra.ctx = dplane_ctx_alloc(); | |
55eb9d4d | 1101 | fra.complete = true; |
bda10adf RZ |
1102 | hash_iterate(zrouter.l3vni_table, fpm_enqueue_l3vni_table, &fra); |
1103 | dplane_ctx_fini(&fra.ctx); | |
1104 | ||
55eb9d4d RZ |
1105 | /* RMAC walk completed. */ |
1106 | if (fra.complete) | |
1107 | WALK_FINISH(fra.fnc, FNE_RMAC_FINISHED); | |
1108 | ||
bda10adf RZ |
1109 | return 0; |
1110 | } | |
1111 | ||
981ca597 RZ |
1112 | /* |
1113 | * Resets the next hop FPM flags so we send all next hops again. | |
1114 | */ | |
1115 | static void fpm_nhg_reset_cb(struct hash_bucket *bucket, void *arg) | |
1116 | { | |
1117 | struct nhg_hash_entry *nhe = bucket->data; | |
1118 | ||
1119 | /* Unset FPM installation flag so it gets installed again. */ | |
1120 | UNSET_FLAG(nhe->flags, NEXTHOP_GROUP_FPM); | |
1121 | } | |
1122 | ||
1123 | static int fpm_nhg_reset(struct thread *t) | |
1124 | { | |
55eb9d4d RZ |
1125 | struct fpm_nl_ctx *fnc = THREAD_ARG(t); |
1126 | ||
1127 | fnc->nhg_complete = false; | |
981ca597 | 1128 | hash_iterate(zrouter.nhgs_id, fpm_nhg_reset_cb, NULL); |
e41e0f81 RZ |
1129 | |
1130 | /* Schedule next step: send next hop groups. */ | |
1131 | thread_add_event(zrouter.master, fpm_nhg_send, fnc, 0, &fnc->t_nhgwalk); | |
1132 | ||
981ca597 RZ |
1133 | return 0; |
1134 | } | |
1135 | ||
f9bf1ecc DE |
1136 | /* |
1137 | * Resets the LSP FPM flag so we send all LSPs again. | |
1138 | */ | |
1139 | static void fpm_lsp_reset_cb(struct hash_bucket *bucket, void *arg) | |
1140 | { | |
1141 | zebra_lsp_t *lsp = bucket->data; | |
1142 | ||
1143 | UNSET_FLAG(lsp->flags, LSP_FLAG_FPM); | |
1144 | } | |
1145 | ||
1146 | static int fpm_lsp_reset(struct thread *t) | |
1147 | { | |
1148 | struct fpm_nl_ctx *fnc = THREAD_ARG(t); | |
1149 | struct zebra_vrf *zvrf = vrf_info_lookup(VRF_DEFAULT); | |
1150 | ||
1151 | hash_iterate(zvrf->lsp_table, fpm_lsp_reset_cb, NULL); | |
1152 | ||
1153 | /* Schedule next step: send LSPs */ | |
1154 | thread_add_event(zrouter.master, fpm_lsp_send, fnc, 0, &fnc->t_lspwalk); | |
1155 | ||
1156 | return 0; | |
1157 | } | |
1158 | ||
018e77bc RZ |
1159 | /** |
1160 | * Resets the RIB FPM flags so we send all routes again. | |
1161 | */ | |
1162 | static int fpm_rib_reset(struct thread *t) | |
1163 | { | |
1164 | struct fpm_nl_ctx *fnc = THREAD_ARG(t); | |
1165 | rib_dest_t *dest; | |
1166 | struct route_node *rn; | |
1167 | struct route_table *rt; | |
1168 | rib_tables_iter_t rt_iter; | |
1169 | ||
1170 | fnc->rib_complete = false; | |
1171 | ||
1172 | rt_iter.state = RIB_TABLES_ITER_S_INIT; | |
1173 | while ((rt = rib_tables_iter_next(&rt_iter))) { | |
1174 | for (rn = route_top(rt); rn; rn = srcdest_route_next(rn)) { | |
1175 | dest = rib_dest_from_rnode(rn); | |
1176 | /* Skip bad route entries. */ | |
1177 | if (dest == NULL) | |
1178 | continue; | |
1179 | ||
1180 | UNSET_FLAG(dest->flags, RIB_DEST_UPDATE_FPM); | |
1181 | } | |
1182 | } | |
1183 | ||
e41e0f81 RZ |
1184 | /* Schedule next step: send RIB routes. */ |
1185 | thread_add_event(zrouter.master, fpm_rib_send, fnc, 0, &fnc->t_ribwalk); | |
1186 | ||
018e77bc RZ |
1187 | return 0; |
1188 | } | |
1189 | ||
bda10adf RZ |
1190 | /* |
1191 | * The next three function will handle RMAC table reset. | |
1192 | */ | |
9d5c3268 | 1193 | static void fpm_unset_rmac_table(struct hash_bucket *backet, void *arg) |
bda10adf RZ |
1194 | { |
1195 | zebra_mac_t *zrmac = backet->data; | |
1196 | ||
1197 | UNSET_FLAG(zrmac->flags, ZEBRA_MAC_FPM_SENT); | |
1198 | } | |
1199 | ||
9d5c3268 | 1200 | static void fpm_unset_l3vni_table(struct hash_bucket *backet, void *arg) |
bda10adf RZ |
1201 | { |
1202 | zebra_l3vni_t *zl3vni = backet->data; | |
1203 | ||
1204 | hash_iterate(zl3vni->rmac_table, fpm_unset_rmac_table, zl3vni); | |
1205 | } | |
1206 | ||
1207 | static int fpm_rmac_reset(struct thread *t) | |
1208 | { | |
55eb9d4d RZ |
1209 | struct fpm_nl_ctx *fnc = THREAD_ARG(t); |
1210 | ||
1211 | fnc->rmac_complete = false; | |
bda10adf RZ |
1212 | hash_iterate(zrouter.l3vni_table, fpm_unset_l3vni_table, NULL); |
1213 | ||
e41e0f81 RZ |
1214 | /* Schedule next event: send RMAC entries. */ |
1215 | thread_add_event(zrouter.master, fpm_rmac_send, fnc, 0, | |
1216 | &fnc->t_rmacwalk); | |
1217 | ||
bda10adf RZ |
1218 | return 0; |
1219 | } | |
1220 | ||
ba803a2f RZ |
1221 | static int fpm_process_queue(struct thread *t) |
1222 | { | |
1223 | struct fpm_nl_ctx *fnc = THREAD_ARG(t); | |
1224 | struct zebra_dplane_ctx *ctx; | |
1225 | ||
1226 | frr_mutex_lock_autounlock(&fnc->ctxqueue_mutex); | |
1227 | ||
1228 | while (true) { | |
1229 | /* No space available yet. */ | |
1230 | if (STREAM_WRITEABLE(fnc->obuf) < NL_PKT_BUF_SIZE) | |
1231 | break; | |
1232 | ||
1233 | /* Dequeue next item or quit processing. */ | |
1234 | ctx = dplane_ctx_dequeue(&fnc->ctxqueue); | |
1235 | if (ctx == NULL) | |
1236 | break; | |
1237 | ||
1238 | fpm_nl_enqueue(fnc, ctx); | |
1239 | ||
1240 | /* Account the processed entries. */ | |
c871e6c9 RZ |
1241 | atomic_fetch_add_explicit(&fnc->counters.dplane_contexts, 1, |
1242 | memory_order_relaxed); | |
1243 | atomic_fetch_sub_explicit(&fnc->counters.ctxqueue_len, 1, | |
1244 | memory_order_relaxed); | |
ba803a2f RZ |
1245 | |
1246 | dplane_ctx_set_status(ctx, ZEBRA_DPLANE_REQUEST_SUCCESS); | |
1247 | dplane_provider_enqueue_out_ctx(fnc->prov, ctx); | |
1248 | } | |
1249 | ||
1250 | /* Check for more items in the queue. */ | |
c871e6c9 RZ |
1251 | if (atomic_load_explicit(&fnc->counters.ctxqueue_len, |
1252 | memory_order_relaxed) | |
1253 | > 0) | |
ba803a2f RZ |
1254 | thread_add_timer(fnc->fthread->master, fpm_process_queue, |
1255 | fnc, 0, &fnc->t_dequeue); | |
1256 | ||
1257 | return 0; | |
1258 | } | |
1259 | ||
3bdd7fca RZ |
1260 | /** |
1261 | * Handles external (e.g. CLI, data plane or others) events. | |
1262 | */ | |
1263 | static int fpm_process_event(struct thread *t) | |
1264 | { | |
1265 | struct fpm_nl_ctx *fnc = THREAD_ARG(t); | |
1266 | int event = THREAD_VAL(t); | |
1267 | ||
1268 | switch (event) { | |
1269 | case FNE_DISABLE: | |
e5e444d8 | 1270 | zlog_info("%s: manual FPM disable event", __func__); |
3bdd7fca | 1271 | fnc->disabled = true; |
c871e6c9 RZ |
1272 | atomic_fetch_add_explicit(&fnc->counters.user_disables, 1, |
1273 | memory_order_relaxed); | |
3bdd7fca RZ |
1274 | |
1275 | /* Call reconnect to disable timers and clean up context. */ | |
1276 | fpm_reconnect(fnc); | |
1277 | break; | |
1278 | ||
1279 | case FNE_RECONNECT: | |
e5e444d8 | 1280 | zlog_info("%s: manual FPM reconnect event", __func__); |
3bdd7fca | 1281 | fnc->disabled = false; |
c871e6c9 RZ |
1282 | atomic_fetch_add_explicit(&fnc->counters.user_configures, 1, |
1283 | memory_order_relaxed); | |
3bdd7fca RZ |
1284 | fpm_reconnect(fnc); |
1285 | break; | |
1286 | ||
6cc059cd | 1287 | case FNE_RESET_COUNTERS: |
e5e444d8 | 1288 | zlog_info("%s: manual FPM counters reset event", __func__); |
6cc059cd RZ |
1289 | memset(&fnc->counters, 0, sizeof(fnc->counters)); |
1290 | break; | |
1291 | ||
b55ab92a RZ |
1292 | case FNE_TOGGLE_NHG: |
1293 | zlog_info("%s: toggle next hop groups support", __func__); | |
1294 | fnc->use_nhg = !fnc->use_nhg; | |
1295 | fpm_reconnect(fnc); | |
1296 | break; | |
1297 | ||
a2032324 RZ |
1298 | case FNE_INTERNAL_RECONNECT: |
1299 | fpm_reconnect(fnc); | |
1300 | break; | |
1301 | ||
55eb9d4d RZ |
1302 | case FNE_NHG_FINISHED: |
1303 | if (IS_ZEBRA_DEBUG_FPM) | |
1304 | zlog_debug("%s: next hop groups walk finished", | |
1305 | __func__); | |
1306 | ||
1307 | fnc->nhg_complete = true; | |
1308 | break; | |
1309 | case FNE_RIB_FINISHED: | |
1310 | if (IS_ZEBRA_DEBUG_FPM) | |
1311 | zlog_debug("%s: RIB walk finished", __func__); | |
1312 | ||
1313 | fnc->rib_complete = true; | |
1314 | break; | |
1315 | case FNE_RMAC_FINISHED: | |
1316 | if (IS_ZEBRA_DEBUG_FPM) | |
1317 | zlog_debug("%s: RMAC walk finished", __func__); | |
1318 | ||
1319 | fnc->rmac_complete = true; | |
1320 | break; | |
f9bf1ecc DE |
1321 | case FNE_LSP_FINISHED: |
1322 | if (IS_ZEBRA_DEBUG_FPM) | |
1323 | zlog_debug("%s: LSP walk finished", __func__); | |
1324 | break; | |
55eb9d4d | 1325 | |
3bdd7fca | 1326 | default: |
e5e444d8 RZ |
1327 | if (IS_ZEBRA_DEBUG_FPM) |
1328 | zlog_debug("%s: unhandled event %d", __func__, event); | |
3bdd7fca RZ |
1329 | break; |
1330 | } | |
1331 | ||
1332 | return 0; | |
1333 | } | |
1334 | ||
d35f447d RZ |
1335 | /* |
1336 | * Data plane functions. | |
1337 | */ | |
1338 | static int fpm_nl_start(struct zebra_dplane_provider *prov) | |
1339 | { | |
1340 | struct fpm_nl_ctx *fnc; | |
1341 | ||
1342 | fnc = dplane_provider_get_data(prov); | |
1343 | fnc->fthread = frr_pthread_new(NULL, prov_name, prov_name); | |
1344 | assert(frr_pthread_run(fnc->fthread, NULL) == 0); | |
1345 | fnc->ibuf = stream_new(NL_PKT_BUF_SIZE); | |
1346 | fnc->obuf = stream_new(NL_PKT_BUF_SIZE * 128); | |
1347 | pthread_mutex_init(&fnc->obuf_mutex, NULL); | |
1348 | fnc->socket = -1; | |
3bdd7fca | 1349 | fnc->disabled = true; |
ba803a2f RZ |
1350 | fnc->prov = prov; |
1351 | TAILQ_INIT(&fnc->ctxqueue); | |
1352 | pthread_mutex_init(&fnc->ctxqueue_mutex, NULL); | |
d35f447d | 1353 | |
b55ab92a RZ |
1354 | /* Set default values. */ |
1355 | fnc->use_nhg = true; | |
1356 | ||
d35f447d RZ |
1357 | return 0; |
1358 | } | |
1359 | ||
98a87504 | 1360 | static int fpm_nl_finish_early(struct fpm_nl_ctx *fnc) |
d35f447d | 1361 | { |
98a87504 | 1362 | /* Disable all events and close socket. */ |
f9bf1ecc DE |
1363 | THREAD_OFF(fnc->t_lspreset); |
1364 | THREAD_OFF(fnc->t_lspwalk); | |
981ca597 RZ |
1365 | THREAD_OFF(fnc->t_nhgreset); |
1366 | THREAD_OFF(fnc->t_nhgwalk); | |
98a87504 RZ |
1367 | THREAD_OFF(fnc->t_ribreset); |
1368 | THREAD_OFF(fnc->t_ribwalk); | |
1369 | THREAD_OFF(fnc->t_rmacreset); | |
1370 | THREAD_OFF(fnc->t_rmacwalk); | |
1371 | thread_cancel_async(fnc->fthread->master, &fnc->t_read, NULL); | |
1372 | thread_cancel_async(fnc->fthread->master, &fnc->t_write, NULL); | |
1373 | thread_cancel_async(fnc->fthread->master, &fnc->t_connect, NULL); | |
d35f447d | 1374 | |
98a87504 RZ |
1375 | if (fnc->socket != -1) { |
1376 | close(fnc->socket); | |
1377 | fnc->socket = -1; | |
1378 | } | |
1379 | ||
1380 | return 0; | |
1381 | } | |
1382 | ||
1383 | static int fpm_nl_finish_late(struct fpm_nl_ctx *fnc) | |
1384 | { | |
1385 | /* Stop the running thread. */ | |
1386 | frr_pthread_stop(fnc->fthread, NULL); | |
1387 | ||
1388 | /* Free all allocated resources. */ | |
1389 | pthread_mutex_destroy(&fnc->obuf_mutex); | |
1390 | pthread_mutex_destroy(&fnc->ctxqueue_mutex); | |
d35f447d RZ |
1391 | stream_free(fnc->ibuf); |
1392 | stream_free(fnc->obuf); | |
98a87504 RZ |
1393 | free(gfnc); |
1394 | gfnc = NULL; | |
d35f447d RZ |
1395 | |
1396 | return 0; | |
1397 | } | |
1398 | ||
98a87504 RZ |
1399 | static int fpm_nl_finish(struct zebra_dplane_provider *prov, bool early) |
1400 | { | |
1401 | struct fpm_nl_ctx *fnc; | |
1402 | ||
1403 | fnc = dplane_provider_get_data(prov); | |
1404 | if (early) | |
1405 | return fpm_nl_finish_early(fnc); | |
1406 | ||
1407 | return fpm_nl_finish_late(fnc); | |
1408 | } | |
1409 | ||
d35f447d RZ |
1410 | static int fpm_nl_process(struct zebra_dplane_provider *prov) |
1411 | { | |
1412 | struct zebra_dplane_ctx *ctx; | |
1413 | struct fpm_nl_ctx *fnc; | |
1414 | int counter, limit; | |
edfeff42 | 1415 | uint64_t cur_queue, peak_queue; |
d35f447d RZ |
1416 | |
1417 | fnc = dplane_provider_get_data(prov); | |
1418 | limit = dplane_provider_get_work_limit(prov); | |
1419 | for (counter = 0; counter < limit; counter++) { | |
1420 | ctx = dplane_provider_dequeue_in_ctx(prov); | |
1421 | if (ctx == NULL) | |
1422 | break; | |
1423 | ||
1424 | /* | |
1425 | * Skip all notifications if not connected, we'll walk the RIB | |
1426 | * anyway. | |
1427 | */ | |
6cc059cd | 1428 | if (fnc->socket != -1 && fnc->connecting == false) { |
ba803a2f RZ |
1429 | frr_mutex_lock_autounlock(&fnc->ctxqueue_mutex); |
1430 | dplane_ctx_enqueue_tail(&fnc->ctxqueue, ctx); | |
1431 | ||
1432 | /* Account the number of contexts. */ | |
c871e6c9 RZ |
1433 | atomic_fetch_add_explicit(&fnc->counters.ctxqueue_len, |
1434 | 1, memory_order_relaxed); | |
1435 | cur_queue = atomic_load_explicit( | |
1436 | &fnc->counters.ctxqueue_len, | |
1437 | memory_order_relaxed); | |
1438 | peak_queue = atomic_load_explicit( | |
1439 | &fnc->counters.ctxqueue_len_peak, | |
1440 | memory_order_relaxed); | |
edfeff42 | 1441 | if (peak_queue < cur_queue) |
c871e6c9 RZ |
1442 | atomic_store_explicit( |
1443 | &fnc->counters.ctxqueue_len_peak, | |
7545bda0 | 1444 | cur_queue, memory_order_relaxed); |
ba803a2f | 1445 | continue; |
6cc059cd RZ |
1446 | } |
1447 | ||
d35f447d RZ |
1448 | dplane_ctx_set_status(ctx, ZEBRA_DPLANE_REQUEST_SUCCESS); |
1449 | dplane_provider_enqueue_out_ctx(prov, ctx); | |
1450 | } | |
1451 | ||
c871e6c9 RZ |
1452 | if (atomic_load_explicit(&fnc->counters.ctxqueue_len, |
1453 | memory_order_relaxed) | |
1454 | > 0) | |
ba803a2f RZ |
1455 | thread_add_timer(fnc->fthread->master, fpm_process_queue, |
1456 | fnc, 0, &fnc->t_dequeue); | |
1457 | ||
d35f447d RZ |
1458 | return 0; |
1459 | } | |
1460 | ||
1461 | static int fpm_nl_new(struct thread_master *tm) | |
1462 | { | |
1463 | struct zebra_dplane_provider *prov = NULL; | |
d35f447d RZ |
1464 | int rv; |
1465 | ||
3bdd7fca | 1466 | gfnc = calloc(1, sizeof(*gfnc)); |
d35f447d RZ |
1467 | rv = dplane_provider_register(prov_name, DPLANE_PRIO_POSTPROCESS, |
1468 | DPLANE_PROV_FLAG_THREADED, fpm_nl_start, | |
3bdd7fca | 1469 | fpm_nl_process, fpm_nl_finish, gfnc, |
d35f447d RZ |
1470 | &prov); |
1471 | ||
1472 | if (IS_ZEBRA_DEBUG_DPLANE) | |
1473 | zlog_debug("%s register status: %d", prov_name, rv); | |
1474 | ||
612c2c15 | 1475 | install_node(&fpm_node); |
6cc059cd RZ |
1476 | install_element(ENABLE_NODE, &fpm_show_counters_cmd); |
1477 | install_element(ENABLE_NODE, &fpm_show_counters_json_cmd); | |
1478 | install_element(ENABLE_NODE, &fpm_reset_counters_cmd); | |
3bdd7fca RZ |
1479 | install_element(CONFIG_NODE, &fpm_set_address_cmd); |
1480 | install_element(CONFIG_NODE, &no_fpm_set_address_cmd); | |
b55ab92a RZ |
1481 | install_element(CONFIG_NODE, &fpm_use_nhg_cmd); |
1482 | install_element(CONFIG_NODE, &no_fpm_use_nhg_cmd); | |
3bdd7fca | 1483 | |
d35f447d RZ |
1484 | return 0; |
1485 | } | |
1486 | ||
1487 | static int fpm_nl_init(void) | |
1488 | { | |
1489 | hook_register(frr_late_init, fpm_nl_new); | |
1490 | return 0; | |
1491 | } | |
1492 | ||
1493 | FRR_MODULE_SETUP( | |
1494 | .name = "dplane_fpm_nl", | |
1495 | .version = "0.0.1", | |
1496 | .description = "Data plane plugin for FPM using netlink.", | |
1497 | .init = fpm_nl_init, | |
1498 | ) |