1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2010-2016 Intel Corporation
3 */
4
5 #include <stdio.h>
6 #include <stdlib.h>
7 #include <stdint.h>
8 #include <inttypes.h>
9 #include <sys/types.h>
10 #include <string.h>
11 #include <sys/queue.h>
12 #include <stdarg.h>
13 #include <errno.h>
14 #include <getopt.h>
15 #include <stdbool.h>
16 #include <sys/socket.h>
17 #include <arpa/inet.h>
18
19 #include <rte_debug.h>
20 #include <rte_ether.h>
21 #include <rte_ethdev.h>
22 #include <rte_cycles.h>
23 #include <rte_mbuf.h>
24 #include <rte_ip.h>
25 #include <rte_tcp.h>
26 #include <rte_udp.h>
27 #include <rte_lpm.h>
28 #include <rte_lpm6.h>
29
30 #include "l3fwd.h"
31 #include "l3fwd_common.h"
32 #include "l3fwd_event.h"
33
34 #include "lpm_route_parse.c"
35
36 #define IPV4_L3FWD_LPM_MAX_RULES 1024
37 #define IPV4_L3FWD_LPM_NUMBER_TBL8S (1 << 8)
38 #define IPV6_L3FWD_LPM_MAX_RULES 1024
39 #define IPV6_L3FWD_LPM_NUMBER_TBL8S (1 << 16)
40
41 static struct rte_lpm *ipv4_l3fwd_lpm_lookup_struct[NB_SOCKETS];
42 static struct rte_lpm6 *ipv6_l3fwd_lpm_lookup_struct[NB_SOCKETS];
43
44 /* Performing LPM-based lookups. 8< */
45 static inline uint16_t
lpm_get_ipv4_dst_port(const struct rte_ipv4_hdr * ipv4_hdr,uint16_t portid,struct rte_lpm * ipv4_l3fwd_lookup_struct)46 lpm_get_ipv4_dst_port(const struct rte_ipv4_hdr *ipv4_hdr,
47 uint16_t portid,
48 struct rte_lpm *ipv4_l3fwd_lookup_struct)
49 {
50 uint32_t dst_ip = rte_be_to_cpu_32(ipv4_hdr->dst_addr);
51 uint32_t next_hop;
52
53 if (rte_lpm_lookup(ipv4_l3fwd_lookup_struct, dst_ip, &next_hop) == 0)
54 return next_hop;
55 else
56 return portid;
57 }
58 /* >8 End of performing LPM-based lookups. */
59
60 static inline uint16_t
lpm_get_ipv6_dst_port(const struct rte_ipv6_hdr * ipv6_hdr,uint16_t portid,struct rte_lpm6 * ipv6_l3fwd_lookup_struct)61 lpm_get_ipv6_dst_port(const struct rte_ipv6_hdr *ipv6_hdr,
62 uint16_t portid,
63 struct rte_lpm6 *ipv6_l3fwd_lookup_struct)
64 {
65 const uint8_t *dst_ip = ipv6_hdr->dst_addr;
66 uint32_t next_hop;
67
68 if (rte_lpm6_lookup(ipv6_l3fwd_lookup_struct, dst_ip, &next_hop) == 0)
69 return next_hop;
70 else
71 return portid;
72 }
73
74 static __rte_always_inline uint16_t
lpm_get_dst_port(const struct lcore_conf * qconf,struct rte_mbuf * pkt,uint16_t portid)75 lpm_get_dst_port(const struct lcore_conf *qconf, struct rte_mbuf *pkt,
76 uint16_t portid)
77 {
78 struct rte_ipv6_hdr *ipv6_hdr;
79 struct rte_ipv4_hdr *ipv4_hdr;
80 struct rte_ether_hdr *eth_hdr;
81
82 if (RTE_ETH_IS_IPV4_HDR(pkt->packet_type)) {
83
84 eth_hdr = rte_pktmbuf_mtod(pkt, struct rte_ether_hdr *);
85 ipv4_hdr = (struct rte_ipv4_hdr *)(eth_hdr + 1);
86
87 return lpm_get_ipv4_dst_port(ipv4_hdr, portid,
88 qconf->ipv4_lookup_struct);
89 } else if (RTE_ETH_IS_IPV6_HDR(pkt->packet_type)) {
90
91 eth_hdr = rte_pktmbuf_mtod(pkt, struct rte_ether_hdr *);
92 ipv6_hdr = (struct rte_ipv6_hdr *)(eth_hdr + 1);
93
94 return lpm_get_ipv6_dst_port(ipv6_hdr, portid,
95 qconf->ipv6_lookup_struct);
96 }
97
98 return portid;
99 }
100
101 /*
102 * lpm_get_dst_port optimized routine for packets where dst_ipv4 is already
103 * precalculated. If packet is ipv6 dst_addr is taken directly from packet
104 * header and dst_ipv4 value is not used.
105 */
106 static __rte_always_inline uint16_t
lpm_get_dst_port_with_ipv4(const struct lcore_conf * qconf,struct rte_mbuf * pkt,uint32_t dst_ipv4,uint16_t portid)107 lpm_get_dst_port_with_ipv4(const struct lcore_conf *qconf, struct rte_mbuf *pkt,
108 uint32_t dst_ipv4, uint16_t portid)
109 {
110 uint32_t next_hop;
111 struct rte_ipv6_hdr *ipv6_hdr;
112 struct rte_ether_hdr *eth_hdr;
113
114 if (RTE_ETH_IS_IPV4_HDR(pkt->packet_type)) {
115 return (uint16_t) ((rte_lpm_lookup(qconf->ipv4_lookup_struct,
116 dst_ipv4, &next_hop) == 0)
117 ? next_hop : portid);
118
119 } else if (RTE_ETH_IS_IPV6_HDR(pkt->packet_type)) {
120
121 eth_hdr = rte_pktmbuf_mtod(pkt, struct rte_ether_hdr *);
122 ipv6_hdr = (struct rte_ipv6_hdr *)(eth_hdr + 1);
123
124 return (uint16_t) ((rte_lpm6_lookup(qconf->ipv6_lookup_struct,
125 ipv6_hdr->dst_addr, &next_hop) == 0)
126 ? next_hop : portid);
127
128 }
129
130 return portid;
131 }
132
133 #if defined(RTE_ARCH_X86)
134 #include "l3fwd_lpm_sse.h"
135 #elif defined __ARM_NEON
136 #include "l3fwd_lpm_neon.h"
137 #elif defined(RTE_ARCH_PPC_64)
138 #include "l3fwd_lpm_altivec.h"
139 #else
140 #include "l3fwd_lpm.h"
141 #endif
142
143 /* main processing loop */
144 int
lpm_main_loop(__rte_unused void * dummy)145 lpm_main_loop(__rte_unused void *dummy)
146 {
147 struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
148 unsigned lcore_id;
149 uint64_t prev_tsc, diff_tsc, cur_tsc;
150 int i, nb_rx;
151 uint16_t portid;
152 uint8_t queueid;
153 struct lcore_conf *qconf;
154 const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1) /
155 US_PER_S * BURST_TX_DRAIN_US;
156
157 lcore_id = rte_lcore_id();
158 qconf = &lcore_conf[lcore_id];
159
160 const uint16_t n_rx_q = qconf->n_rx_queue;
161 const uint16_t n_tx_p = qconf->n_tx_port;
162 if (n_rx_q == 0) {
163 RTE_LOG(INFO, L3FWD, "lcore %u has nothing to do\n", lcore_id);
164 return 0;
165 }
166
167 RTE_LOG(INFO, L3FWD, "entering main loop on lcore %u\n", lcore_id);
168
169 for (i = 0; i < n_rx_q; i++) {
170
171 portid = qconf->rx_queue_list[i].port_id;
172 queueid = qconf->rx_queue_list[i].queue_id;
173 RTE_LOG(INFO, L3FWD,
174 " -- lcoreid=%u portid=%u rxqueueid=%hhu\n",
175 lcore_id, portid, queueid);
176 }
177
178 cur_tsc = rte_rdtsc();
179 prev_tsc = cur_tsc;
180
181 while (!force_quit) {
182
183 /*
184 * TX burst queue drain
185 */
186 diff_tsc = cur_tsc - prev_tsc;
187 if (unlikely(diff_tsc > drain_tsc)) {
188
189 for (i = 0; i < n_tx_p; ++i) {
190 portid = qconf->tx_port_id[i];
191 if (qconf->tx_mbufs[portid].len == 0)
192 continue;
193 send_burst(qconf,
194 qconf->tx_mbufs[portid].len,
195 portid);
196 qconf->tx_mbufs[portid].len = 0;
197 }
198
199 prev_tsc = cur_tsc;
200 }
201
202 /*
203 * Read packet from RX queues
204 */
205 for (i = 0; i < n_rx_q; ++i) {
206 portid = qconf->rx_queue_list[i].port_id;
207 queueid = qconf->rx_queue_list[i].queue_id;
208 nb_rx = rte_eth_rx_burst(portid, queueid, pkts_burst,
209 MAX_PKT_BURST);
210 if (nb_rx == 0)
211 continue;
212
213 #if defined RTE_ARCH_X86 || defined __ARM_NEON \
214 || defined RTE_ARCH_PPC_64
215 l3fwd_lpm_send_packets(nb_rx, pkts_burst,
216 portid, qconf);
217 #else
218 l3fwd_lpm_no_opt_send_packets(nb_rx, pkts_burst,
219 portid, qconf);
220 #endif /* X86 */
221 }
222
223 cur_tsc = rte_rdtsc();
224 }
225
226 return 0;
227 }
228
229 static __rte_always_inline uint16_t
lpm_process_event_pkt(const struct lcore_conf * lconf,struct rte_mbuf * mbuf)230 lpm_process_event_pkt(const struct lcore_conf *lconf, struct rte_mbuf *mbuf)
231 {
232 mbuf->port = lpm_get_dst_port(lconf, mbuf, mbuf->port);
233
234 #if defined RTE_ARCH_X86 || defined __ARM_NEON \
235 || defined RTE_ARCH_PPC_64
236 process_packet(mbuf, &mbuf->port);
237 #else
238
239 struct rte_ether_hdr *eth_hdr = rte_pktmbuf_mtod(mbuf,
240 struct rte_ether_hdr *);
241
242 /* dst addr */
243 *(uint64_t *)ð_hdr->dst_addr = dest_eth_addr[mbuf->port];
244
245 /* src addr */
246 rte_ether_addr_copy(&ports_eth_addr[mbuf->port],
247 ð_hdr->src_addr);
248
249 rfc1812_process(rte_pktmbuf_mtod_offset(mbuf, struct rte_ipv4_hdr *,
250 sizeof(struct rte_ether_hdr)),
251 &mbuf->port, mbuf->packet_type);
252 #endif
253 return mbuf->port;
254 }
255
256 static __rte_always_inline void
lpm_event_loop_single(struct l3fwd_event_resources * evt_rsrc,const uint8_t flags)257 lpm_event_loop_single(struct l3fwd_event_resources *evt_rsrc,
258 const uint8_t flags)
259 {
260 const int event_p_id = l3fwd_get_free_event_port(evt_rsrc);
261 const uint8_t tx_q_id = evt_rsrc->evq.event_q_id[
262 evt_rsrc->evq.nb_queues - 1];
263 const uint8_t event_d_id = evt_rsrc->event_d_id;
264 uint8_t enq = 0, deq = 0;
265 struct lcore_conf *lconf;
266 unsigned int lcore_id;
267 struct rte_event ev;
268
269 if (event_p_id < 0)
270 return;
271
272 lcore_id = rte_lcore_id();
273 lconf = &lcore_conf[lcore_id];
274
275 RTE_LOG(INFO, L3FWD, "entering %s on lcore %u\n", __func__, lcore_id);
276 while (!force_quit) {
277 deq = rte_event_dequeue_burst(event_d_id, event_p_id, &ev, 1,
278 0);
279 if (!deq)
280 continue;
281
282 if (lpm_process_event_pkt(lconf, ev.mbuf) == BAD_PORT) {
283 rte_pktmbuf_free(ev.mbuf);
284 continue;
285 }
286
287 if (flags & L3FWD_EVENT_TX_ENQ) {
288 ev.queue_id = tx_q_id;
289 ev.op = RTE_EVENT_OP_FORWARD;
290 do {
291 enq = rte_event_enqueue_burst(
292 event_d_id, event_p_id, &ev, 1);
293 } while (!enq && !force_quit);
294 }
295
296 if (flags & L3FWD_EVENT_TX_DIRECT) {
297 rte_event_eth_tx_adapter_txq_set(ev.mbuf, 0);
298 do {
299 enq = rte_event_eth_tx_adapter_enqueue(
300 event_d_id, event_p_id, &ev, 1, 0);
301 } while (!enq && !force_quit);
302 }
303 }
304
305 l3fwd_event_worker_cleanup(event_d_id, event_p_id, &ev, enq, deq, 0);
306 }
307
308 static __rte_always_inline void
lpm_event_loop_burst(struct l3fwd_event_resources * evt_rsrc,const uint8_t flags)309 lpm_event_loop_burst(struct l3fwd_event_resources *evt_rsrc,
310 const uint8_t flags)
311 {
312 const int event_p_id = l3fwd_get_free_event_port(evt_rsrc);
313 const uint8_t tx_q_id = evt_rsrc->evq.event_q_id[
314 evt_rsrc->evq.nb_queues - 1];
315 const uint8_t event_d_id = evt_rsrc->event_d_id;
316 const uint16_t deq_len = evt_rsrc->deq_depth;
317 struct rte_event events[MAX_PKT_BURST];
318 int i, nb_enq = 0, nb_deq = 0;
319 struct lcore_conf *lconf;
320 unsigned int lcore_id;
321
322 if (event_p_id < 0)
323 return;
324
325 lcore_id = rte_lcore_id();
326
327 lconf = &lcore_conf[lcore_id];
328
329 RTE_LOG(INFO, L3FWD, "entering %s on lcore %u\n", __func__, lcore_id);
330
331 while (!force_quit) {
332 /* Read events from RX queues */
333 nb_deq = rte_event_dequeue_burst(event_d_id, event_p_id,
334 events, deq_len, 0);
335 if (nb_deq == 0) {
336 rte_pause();
337 continue;
338 }
339
340 for (i = 0; i < nb_deq; i++) {
341 if (flags & L3FWD_EVENT_TX_ENQ) {
342 events[i].queue_id = tx_q_id;
343 events[i].op = RTE_EVENT_OP_FORWARD;
344 }
345
346 if (flags & L3FWD_EVENT_TX_DIRECT)
347 rte_event_eth_tx_adapter_txq_set(events[i].mbuf,
348 0);
349
350 lpm_process_event_pkt(lconf, events[i].mbuf);
351 }
352
353 if (flags & L3FWD_EVENT_TX_ENQ) {
354 nb_enq = rte_event_enqueue_burst(event_d_id, event_p_id,
355 events, nb_deq);
356 while (nb_enq < nb_deq && !force_quit)
357 nb_enq += rte_event_enqueue_burst(event_d_id,
358 event_p_id, events + nb_enq,
359 nb_deq - nb_enq);
360 }
361
362 if (flags & L3FWD_EVENT_TX_DIRECT) {
363 nb_enq = rte_event_eth_tx_adapter_enqueue(event_d_id,
364 event_p_id, events, nb_deq, 0);
365 while (nb_enq < nb_deq && !force_quit)
366 nb_enq += rte_event_eth_tx_adapter_enqueue(
367 event_d_id, event_p_id,
368 events + nb_enq,
369 nb_deq - nb_enq, 0);
370 }
371 }
372
373 l3fwd_event_worker_cleanup(event_d_id, event_p_id, events, nb_enq,
374 nb_deq, 0);
375 }
376
377 static __rte_always_inline void
lpm_event_loop(struct l3fwd_event_resources * evt_rsrc,const uint8_t flags)378 lpm_event_loop(struct l3fwd_event_resources *evt_rsrc,
379 const uint8_t flags)
380 {
381 if (flags & L3FWD_EVENT_SINGLE)
382 lpm_event_loop_single(evt_rsrc, flags);
383 if (flags & L3FWD_EVENT_BURST)
384 lpm_event_loop_burst(evt_rsrc, flags);
385 }
386
387 int __rte_noinline
lpm_event_main_loop_tx_d(__rte_unused void * dummy)388 lpm_event_main_loop_tx_d(__rte_unused void *dummy)
389 {
390 struct l3fwd_event_resources *evt_rsrc =
391 l3fwd_get_eventdev_rsrc();
392
393 lpm_event_loop(evt_rsrc, L3FWD_EVENT_TX_DIRECT | L3FWD_EVENT_SINGLE);
394 return 0;
395 }
396
397 int __rte_noinline
lpm_event_main_loop_tx_d_burst(__rte_unused void * dummy)398 lpm_event_main_loop_tx_d_burst(__rte_unused void *dummy)
399 {
400 struct l3fwd_event_resources *evt_rsrc =
401 l3fwd_get_eventdev_rsrc();
402
403 lpm_event_loop(evt_rsrc, L3FWD_EVENT_TX_DIRECT | L3FWD_EVENT_BURST);
404 return 0;
405 }
406
407 int __rte_noinline
lpm_event_main_loop_tx_q(__rte_unused void * dummy)408 lpm_event_main_loop_tx_q(__rte_unused void *dummy)
409 {
410 struct l3fwd_event_resources *evt_rsrc =
411 l3fwd_get_eventdev_rsrc();
412
413 lpm_event_loop(evt_rsrc, L3FWD_EVENT_TX_ENQ | L3FWD_EVENT_SINGLE);
414 return 0;
415 }
416
417 int __rte_noinline
lpm_event_main_loop_tx_q_burst(__rte_unused void * dummy)418 lpm_event_main_loop_tx_q_burst(__rte_unused void *dummy)
419 {
420 struct l3fwd_event_resources *evt_rsrc =
421 l3fwd_get_eventdev_rsrc();
422
423 lpm_event_loop(evt_rsrc, L3FWD_EVENT_TX_ENQ | L3FWD_EVENT_BURST);
424 return 0;
425 }
426
427 static __rte_always_inline void
lpm_process_event_vector(struct rte_event_vector * vec,struct lcore_conf * lconf)428 lpm_process_event_vector(struct rte_event_vector *vec, struct lcore_conf *lconf)
429 {
430 struct rte_mbuf **mbufs = vec->mbufs;
431 int i;
432
433 /* Process first packet to init vector attributes */
434 lpm_process_event_pkt(lconf, mbufs[0]);
435 if (vec->attr_valid) {
436 if (mbufs[0]->port != BAD_PORT)
437 vec->port = mbufs[0]->port;
438 else
439 vec->attr_valid = 0;
440 }
441
442 for (i = 1; i < vec->nb_elem; i++) {
443 lpm_process_event_pkt(lconf, mbufs[i]);
444 event_vector_attr_validate(vec, mbufs[i]);
445 }
446 }
447
448 /* Same eventdev loop for single and burst of vector */
449 static __rte_always_inline void
lpm_event_loop_vector(struct l3fwd_event_resources * evt_rsrc,const uint8_t flags)450 lpm_event_loop_vector(struct l3fwd_event_resources *evt_rsrc,
451 const uint8_t flags)
452 {
453 const int event_p_id = l3fwd_get_free_event_port(evt_rsrc);
454 const uint8_t tx_q_id =
455 evt_rsrc->evq.event_q_id[evt_rsrc->evq.nb_queues - 1];
456 const uint8_t event_d_id = evt_rsrc->event_d_id;
457 const uint16_t deq_len = evt_rsrc->deq_depth;
458 struct rte_event events[MAX_PKT_BURST];
459 int i, nb_enq = 0, nb_deq = 0;
460 struct lcore_conf *lconf;
461 unsigned int lcore_id;
462
463 if (event_p_id < 0)
464 return;
465
466 lcore_id = rte_lcore_id();
467 lconf = &lcore_conf[lcore_id];
468
469 RTE_LOG(INFO, L3FWD, "entering %s on lcore %u\n", __func__, lcore_id);
470
471 while (!force_quit) {
472 /* Read events from RX queues */
473 nb_deq = rte_event_dequeue_burst(event_d_id, event_p_id, events,
474 deq_len, 0);
475 if (nb_deq == 0) {
476 rte_pause();
477 continue;
478 }
479
480 for (i = 0; i < nb_deq; i++) {
481 if (flags & L3FWD_EVENT_TX_ENQ) {
482 events[i].queue_id = tx_q_id;
483 events[i].op = RTE_EVENT_OP_FORWARD;
484 }
485
486 lpm_process_event_vector(events[i].vec, lconf);
487
488 if (flags & L3FWD_EVENT_TX_DIRECT)
489 event_vector_txq_set(events[i].vec, 0);
490 }
491
492 if (flags & L3FWD_EVENT_TX_ENQ) {
493 nb_enq = rte_event_enqueue_burst(event_d_id, event_p_id,
494 events, nb_deq);
495 while (nb_enq < nb_deq && !force_quit)
496 nb_enq += rte_event_enqueue_burst(
497 event_d_id, event_p_id, events + nb_enq,
498 nb_deq - nb_enq);
499 }
500
501 if (flags & L3FWD_EVENT_TX_DIRECT) {
502 nb_enq = rte_event_eth_tx_adapter_enqueue(
503 event_d_id, event_p_id, events, nb_deq, 0);
504 while (nb_enq < nb_deq && !force_quit)
505 nb_enq += rte_event_eth_tx_adapter_enqueue(
506 event_d_id, event_p_id, events + nb_enq,
507 nb_deq - nb_enq, 0);
508 }
509 }
510
511 l3fwd_event_worker_cleanup(event_d_id, event_p_id, events, nb_enq,
512 nb_deq, 1);
513 }
514
515 int __rte_noinline
lpm_event_main_loop_tx_d_vector(__rte_unused void * dummy)516 lpm_event_main_loop_tx_d_vector(__rte_unused void *dummy)
517 {
518 struct l3fwd_event_resources *evt_rsrc = l3fwd_get_eventdev_rsrc();
519
520 lpm_event_loop_vector(evt_rsrc, L3FWD_EVENT_TX_DIRECT);
521 return 0;
522 }
523
524 int __rte_noinline
lpm_event_main_loop_tx_d_burst_vector(__rte_unused void * dummy)525 lpm_event_main_loop_tx_d_burst_vector(__rte_unused void *dummy)
526 {
527 struct l3fwd_event_resources *evt_rsrc = l3fwd_get_eventdev_rsrc();
528
529 lpm_event_loop_vector(evt_rsrc, L3FWD_EVENT_TX_DIRECT);
530 return 0;
531 }
532
533 int __rte_noinline
lpm_event_main_loop_tx_q_vector(__rte_unused void * dummy)534 lpm_event_main_loop_tx_q_vector(__rte_unused void *dummy)
535 {
536 struct l3fwd_event_resources *evt_rsrc = l3fwd_get_eventdev_rsrc();
537
538 lpm_event_loop_vector(evt_rsrc, L3FWD_EVENT_TX_ENQ);
539 return 0;
540 }
541
542 int __rte_noinline
lpm_event_main_loop_tx_q_burst_vector(__rte_unused void * dummy)543 lpm_event_main_loop_tx_q_burst_vector(__rte_unused void *dummy)
544 {
545 struct l3fwd_event_resources *evt_rsrc = l3fwd_get_eventdev_rsrc();
546
547 lpm_event_loop_vector(evt_rsrc, L3FWD_EVENT_TX_ENQ);
548 return 0;
549 }
550
551 void
setup_lpm(const int socketid)552 setup_lpm(const int socketid)
553 {
554 struct rte_eth_dev_info dev_info;
555 struct rte_lpm6_config config;
556 struct rte_lpm_config config_ipv4;
557 int i;
558 int ret;
559 char s[64];
560 char abuf[INET6_ADDRSTRLEN];
561
562 /* create the LPM table */
563 config_ipv4.max_rules = IPV4_L3FWD_LPM_MAX_RULES;
564 config_ipv4.number_tbl8s = IPV4_L3FWD_LPM_NUMBER_TBL8S;
565 config_ipv4.flags = 0;
566 snprintf(s, sizeof(s), "IPV4_L3FWD_LPM_%d", socketid);
567 ipv4_l3fwd_lpm_lookup_struct[socketid] =
568 rte_lpm_create(s, socketid, &config_ipv4);
569 if (ipv4_l3fwd_lpm_lookup_struct[socketid] == NULL)
570 rte_exit(EXIT_FAILURE,
571 "Unable to create the l3fwd LPM table on socket %d\n",
572 socketid);
573
574 /* populate the LPM table */
575 for (i = 0; i < route_num_v4; i++) {
576 struct in_addr in;
577
578 /* skip unused ports */
579 if ((1 << route_base_v4[i].if_out &
580 enabled_port_mask) == 0)
581 continue;
582
583 rte_eth_dev_info_get(route_base_v4[i].if_out,
584 &dev_info);
585 ret = rte_lpm_add(ipv4_l3fwd_lpm_lookup_struct[socketid],
586 route_base_v4[i].ip,
587 route_base_v4[i].depth,
588 route_base_v4[i].if_out);
589
590 if (ret < 0) {
591 lpm_free_routes();
592 rte_exit(EXIT_FAILURE,
593 "Unable to add entry %u to the l3fwd LPM table on socket %d\n",
594 i, socketid);
595 }
596
597 in.s_addr = htonl(route_base_v4[i].ip);
598 printf("LPM: Adding route %s / %d (%d) [%s]\n",
599 inet_ntop(AF_INET, &in, abuf, sizeof(abuf)),
600 route_base_v4[i].depth,
601 route_base_v4[i].if_out, dev_info.device->name);
602 }
603
604 /* create the LPM6 table */
605 snprintf(s, sizeof(s), "IPV6_L3FWD_LPM_%d", socketid);
606
607 config.max_rules = IPV6_L3FWD_LPM_MAX_RULES;
608 config.number_tbl8s = IPV6_L3FWD_LPM_NUMBER_TBL8S;
609 config.flags = 0;
610 ipv6_l3fwd_lpm_lookup_struct[socketid] = rte_lpm6_create(s, socketid,
611 &config);
612 if (ipv6_l3fwd_lpm_lookup_struct[socketid] == NULL) {
613 lpm_free_routes();
614 rte_exit(EXIT_FAILURE,
615 "Unable to create the l3fwd LPM table on socket %d\n",
616 socketid);
617 }
618
619 /* populate the LPM table */
620 for (i = 0; i < route_num_v6; i++) {
621
622 /* skip unused ports */
623 if ((1 << route_base_v6[i].if_out &
624 enabled_port_mask) == 0)
625 continue;
626
627 rte_eth_dev_info_get(route_base_v6[i].if_out,
628 &dev_info);
629 ret = rte_lpm6_add(ipv6_l3fwd_lpm_lookup_struct[socketid],
630 route_base_v6[i].ip_8,
631 route_base_v6[i].depth,
632 route_base_v6[i].if_out);
633
634 if (ret < 0) {
635 lpm_free_routes();
636 rte_exit(EXIT_FAILURE,
637 "Unable to add entry %u to the l3fwd LPM table on socket %d\n",
638 i, socketid);
639 }
640
641 printf("LPM: Adding route %s / %d (%d) [%s]\n",
642 inet_ntop(AF_INET6, route_base_v6[i].ip_8, abuf,
643 sizeof(abuf)),
644 route_base_v6[i].depth,
645 route_base_v6[i].if_out, dev_info.device->name);
646 }
647 }
648
649 int
lpm_check_ptype(int portid)650 lpm_check_ptype(int portid)
651 {
652 int i, ret;
653 int ptype_l3_ipv4 = 0, ptype_l3_ipv6 = 0;
654 uint32_t ptype_mask = RTE_PTYPE_L3_MASK;
655
656 ret = rte_eth_dev_get_supported_ptypes(portid, ptype_mask, NULL, 0);
657 if (ret <= 0)
658 return 0;
659
660 uint32_t ptypes[ret];
661
662 ret = rte_eth_dev_get_supported_ptypes(portid, ptype_mask, ptypes, ret);
663 for (i = 0; i < ret; ++i) {
664 if (ptypes[i] & RTE_PTYPE_L3_IPV4)
665 ptype_l3_ipv4 = 1;
666 if (ptypes[i] & RTE_PTYPE_L3_IPV6)
667 ptype_l3_ipv6 = 1;
668 }
669
670 if (ptype_l3_ipv4 == 0)
671 printf("port %d cannot parse RTE_PTYPE_L3_IPV4\n", portid);
672
673 if (ptype_l3_ipv6 == 0)
674 printf("port %d cannot parse RTE_PTYPE_L3_IPV6\n", portid);
675
676 if (ptype_l3_ipv4 && ptype_l3_ipv6)
677 return 1;
678
679 return 0;
680
681 }
682
683 static inline void
lpm_parse_ptype(struct rte_mbuf * m)684 lpm_parse_ptype(struct rte_mbuf *m)
685 {
686 struct rte_ether_hdr *eth_hdr;
687 uint32_t packet_type = RTE_PTYPE_UNKNOWN;
688 uint16_t ether_type;
689
690 eth_hdr = rte_pktmbuf_mtod(m, struct rte_ether_hdr *);
691 ether_type = eth_hdr->ether_type;
692 if (ether_type == rte_cpu_to_be_16(RTE_ETHER_TYPE_IPV4))
693 packet_type |= RTE_PTYPE_L3_IPV4_EXT_UNKNOWN;
694 else if (ether_type == rte_cpu_to_be_16(RTE_ETHER_TYPE_IPV6))
695 packet_type |= RTE_PTYPE_L3_IPV6_EXT_UNKNOWN;
696
697 m->packet_type = packet_type;
698 }
699
700 uint16_t
lpm_cb_parse_ptype(uint16_t port __rte_unused,uint16_t queue __rte_unused,struct rte_mbuf * pkts[],uint16_t nb_pkts,uint16_t max_pkts __rte_unused,void * user_param __rte_unused)701 lpm_cb_parse_ptype(uint16_t port __rte_unused, uint16_t queue __rte_unused,
702 struct rte_mbuf *pkts[], uint16_t nb_pkts,
703 uint16_t max_pkts __rte_unused,
704 void *user_param __rte_unused)
705 {
706 unsigned int i;
707
708 if (unlikely(nb_pkts == 0))
709 return nb_pkts;
710 rte_prefetch0(rte_pktmbuf_mtod(pkts[0], struct ether_hdr *));
711 for (i = 0; i < (unsigned int) (nb_pkts - 1); ++i) {
712 rte_prefetch0(rte_pktmbuf_mtod(pkts[i+1],
713 struct ether_hdr *));
714 lpm_parse_ptype(pkts[i]);
715 }
716 lpm_parse_ptype(pkts[i]);
717
718 return nb_pkts;
719 }
720
721 /* Return ipv4/ipv6 lpm fwd lookup struct. */
722 void *
lpm_get_ipv4_l3fwd_lookup_struct(const int socketid)723 lpm_get_ipv4_l3fwd_lookup_struct(const int socketid)
724 {
725 return ipv4_l3fwd_lpm_lookup_struct[socketid];
726 }
727
728 void *
lpm_get_ipv6_l3fwd_lookup_struct(const int socketid)729 lpm_get_ipv6_l3fwd_lookup_struct(const int socketid)
730 {
731 return ipv6_l3fwd_lpm_lookup_struct[socketid];
732 }
733