1 /* SPDX-License-Identifier: BSD-3-Clause 2 * Copyright(c) 2015 Intel Corporation 3 */ 4 5 /* 6 * This application is a simple Layer 2 PTP v2 client. It shows delta values 7 * which are used to synchronize the PHC clock. if the "-T 1" parameter is 8 * passed to the application the Linux kernel clock is also synchronized. 9 */ 10 11 #include <stdint.h> 12 #include <inttypes.h> 13 #include <rte_eal.h> 14 #include <rte_ethdev.h> 15 #include <rte_cycles.h> 16 #include <rte_lcore.h> 17 #include <rte_mbuf.h> 18 #include <rte_ip.h> 19 #include <limits.h> 20 #include <sys/time.h> 21 #include <getopt.h> 22 23 #define RX_RING_SIZE 1024 24 #define TX_RING_SIZE 1024 25 26 #define NUM_MBUFS 8191 27 #define MBUF_CACHE_SIZE 250 28 29 /* Values for the PTP messageType field. */ 30 #define SYNC 0x0 31 #define DELAY_REQ 0x1 32 #define PDELAY_REQ 0x2 33 #define PDELAY_RESP 0x3 34 #define FOLLOW_UP 0x8 35 #define DELAY_RESP 0x9 36 #define PDELAY_RESP_FOLLOW_UP 0xA 37 #define ANNOUNCE 0xB 38 #define SIGNALING 0xC 39 #define MANAGEMENT 0xD 40 41 #define NSEC_PER_SEC 1000000000L 42 #define KERNEL_TIME_ADJUST_LIMIT 20000 43 #define PTP_PROTOCOL 0x88F7 44 45 struct rte_mempool *mbuf_pool; 46 uint32_t ptp_enabled_port_mask; 47 uint8_t ptp_enabled_port_nb; 48 static uint8_t ptp_enabled_ports[RTE_MAX_ETHPORTS]; 49 50 static const struct rte_eth_conf port_conf_default = { 51 .rxmode = { 52 .max_rx_pkt_len = ETHER_MAX_LEN, 53 }, 54 }; 55 56 static const struct ether_addr ether_multicast = { 57 .addr_bytes = {0x01, 0x1b, 0x19, 0x0, 0x0, 0x0} 58 }; 59 60 /* Structs used for PTP handling. */ 61 struct tstamp { 62 uint16_t sec_msb; 63 uint32_t sec_lsb; 64 uint32_t ns; 65 } __attribute__((packed)); 66 67 struct clock_id { 68 uint8_t id[8]; 69 }; 70 71 struct port_id { 72 struct clock_id clock_id; 73 uint16_t port_number; 74 } __attribute__((packed)); 75 76 struct ptp_header { 77 uint8_t msg_type; 78 uint8_t ver; 79 uint16_t message_length; 80 uint8_t domain_number; 81 uint8_t reserved1; 82 uint8_t flag_field[2]; 83 int64_t correction; 84 uint32_t reserved2; 85 struct port_id source_port_id; 86 uint16_t seq_id; 87 uint8_t control; 88 int8_t log_message_interval; 89 } __attribute__((packed)); 90 91 struct sync_msg { 92 struct ptp_header hdr; 93 struct tstamp origin_tstamp; 94 } __attribute__((packed)); 95 96 struct follow_up_msg { 97 struct ptp_header hdr; 98 struct tstamp precise_origin_tstamp; 99 uint8_t suffix[0]; 100 } __attribute__((packed)); 101 102 struct delay_req_msg { 103 struct ptp_header hdr; 104 struct tstamp origin_tstamp; 105 } __attribute__((packed)); 106 107 struct delay_resp_msg { 108 struct ptp_header hdr; 109 struct tstamp rx_tstamp; 110 struct port_id req_port_id; 111 uint8_t suffix[0]; 112 } __attribute__((packed)); 113 114 struct ptp_message { 115 union { 116 struct ptp_header header; 117 struct sync_msg sync; 118 struct delay_req_msg delay_req; 119 struct follow_up_msg follow_up; 120 struct delay_resp_msg delay_resp; 121 } __attribute__((packed)); 122 }; 123 124 struct ptpv2_data_slave_ordinary { 125 struct rte_mbuf *m; 126 struct timespec tstamp1; 127 struct timespec tstamp2; 128 struct timespec tstamp3; 129 struct timespec tstamp4; 130 struct clock_id client_clock_id; 131 struct clock_id master_clock_id; 132 struct timeval new_adj; 133 int64_t delta; 134 uint16_t portid; 135 uint16_t seqID_SYNC; 136 uint16_t seqID_FOLLOWUP; 137 uint8_t ptpset; 138 uint8_t kernel_time_set; 139 uint16_t current_ptp_port; 140 }; 141 142 static struct ptpv2_data_slave_ordinary ptp_data; 143 144 static inline uint64_t timespec64_to_ns(const struct timespec *ts) 145 { 146 return ((uint64_t) ts->tv_sec * NSEC_PER_SEC) + ts->tv_nsec; 147 } 148 149 static struct timeval 150 ns_to_timeval(int64_t nsec) 151 { 152 struct timespec t_spec = {0, 0}; 153 struct timeval t_eval = {0, 0}; 154 int32_t rem; 155 156 if (nsec == 0) 157 return t_eval; 158 rem = nsec % NSEC_PER_SEC; 159 t_spec.tv_sec = nsec / NSEC_PER_SEC; 160 161 if (rem < 0) { 162 t_spec.tv_sec--; 163 rem += NSEC_PER_SEC; 164 } 165 166 t_spec.tv_nsec = rem; 167 t_eval.tv_sec = t_spec.tv_sec; 168 t_eval.tv_usec = t_spec.tv_nsec / 1000; 169 170 return t_eval; 171 } 172 173 /* 174 * Initializes a given port using global settings and with the RX buffers 175 * coming from the mbuf_pool passed as a parameter. 176 */ 177 static inline int 178 port_init(uint16_t port, struct rte_mempool *mbuf_pool) 179 { 180 struct rte_eth_dev_info dev_info; 181 struct rte_eth_conf port_conf = port_conf_default; 182 const uint16_t rx_rings = 1; 183 const uint16_t tx_rings = 1; 184 int retval; 185 uint16_t q; 186 uint16_t nb_rxd = RX_RING_SIZE; 187 uint16_t nb_txd = TX_RING_SIZE; 188 189 if (!rte_eth_dev_is_valid_port(port)) 190 return -1; 191 192 rte_eth_dev_info_get(port, &dev_info); 193 if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE) 194 port_conf.txmode.offloads |= 195 DEV_TX_OFFLOAD_MBUF_FAST_FREE; 196 /* Force full Tx path in the driver, required for IEEE1588 */ 197 port_conf.txmode.offloads |= DEV_TX_OFFLOAD_MULTI_SEGS; 198 199 /* Configure the Ethernet device. */ 200 retval = rte_eth_dev_configure(port, rx_rings, tx_rings, &port_conf); 201 if (retval != 0) 202 return retval; 203 204 retval = rte_eth_dev_adjust_nb_rx_tx_desc(port, &nb_rxd, &nb_txd); 205 if (retval != 0) 206 return retval; 207 208 /* Allocate and set up 1 RX queue per Ethernet port. */ 209 for (q = 0; q < rx_rings; q++) { 210 retval = rte_eth_rx_queue_setup(port, q, nb_rxd, 211 rte_eth_dev_socket_id(port), NULL, mbuf_pool); 212 213 if (retval < 0) 214 return retval; 215 } 216 217 /* Allocate and set up 1 TX queue per Ethernet port. */ 218 for (q = 0; q < tx_rings; q++) { 219 struct rte_eth_txconf *txconf; 220 221 txconf = &dev_info.default_txconf; 222 txconf->offloads = port_conf.txmode.offloads; 223 224 retval = rte_eth_tx_queue_setup(port, q, nb_txd, 225 rte_eth_dev_socket_id(port), txconf); 226 if (retval < 0) 227 return retval; 228 } 229 230 /* Start the Ethernet port. */ 231 retval = rte_eth_dev_start(port); 232 if (retval < 0) 233 return retval; 234 235 /* Enable timesync timestamping for the Ethernet device */ 236 retval = rte_eth_timesync_enable(port); 237 if (retval < 0) { 238 printf("Timesync enable failed: %d\n", retval); 239 return retval; 240 } 241 242 /* Enable RX in promiscuous mode for the Ethernet device. */ 243 rte_eth_promiscuous_enable(port); 244 245 return 0; 246 } 247 248 static void 249 print_clock_info(struct ptpv2_data_slave_ordinary *ptp_data) 250 { 251 int64_t nsec; 252 struct timespec net_time, sys_time; 253 254 printf("Master Clock id: %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x", 255 ptp_data->master_clock_id.id[0], 256 ptp_data->master_clock_id.id[1], 257 ptp_data->master_clock_id.id[2], 258 ptp_data->master_clock_id.id[3], 259 ptp_data->master_clock_id.id[4], 260 ptp_data->master_clock_id.id[5], 261 ptp_data->master_clock_id.id[6], 262 ptp_data->master_clock_id.id[7]); 263 264 printf("\nT2 - Slave Clock. %lds %ldns", 265 (ptp_data->tstamp2.tv_sec), 266 (ptp_data->tstamp2.tv_nsec)); 267 268 printf("\nT1 - Master Clock. %lds %ldns ", 269 ptp_data->tstamp1.tv_sec, 270 (ptp_data->tstamp1.tv_nsec)); 271 272 printf("\nT3 - Slave Clock. %lds %ldns", 273 ptp_data->tstamp3.tv_sec, 274 (ptp_data->tstamp3.tv_nsec)); 275 276 printf("\nT4 - Master Clock. %lds %ldns ", 277 ptp_data->tstamp4.tv_sec, 278 (ptp_data->tstamp4.tv_nsec)); 279 280 printf("\nDelta between master and slave clocks:%"PRId64"ns\n", 281 ptp_data->delta); 282 283 clock_gettime(CLOCK_REALTIME, &sys_time); 284 rte_eth_timesync_read_time(ptp_data->current_ptp_port, &net_time); 285 286 time_t ts = net_time.tv_sec; 287 288 printf("\n\nComparison between Linux kernel Time and PTP:"); 289 290 printf("\nCurrent PTP Time: %.24s %.9ld ns", 291 ctime(&ts), net_time.tv_nsec); 292 293 nsec = (int64_t)timespec64_to_ns(&net_time) - 294 (int64_t)timespec64_to_ns(&sys_time); 295 ptp_data->new_adj = ns_to_timeval(nsec); 296 297 gettimeofday(&ptp_data->new_adj, NULL); 298 299 time_t tp = ptp_data->new_adj.tv_sec; 300 301 printf("\nCurrent SYS Time: %.24s %.6ld ns", 302 ctime(&tp), ptp_data->new_adj.tv_usec); 303 304 printf("\nDelta between PTP and Linux Kernel time:%"PRId64"ns\n", 305 nsec); 306 307 printf("[Ctrl+C to quit]\n"); 308 309 /* Clear screen and put cursor in column 1, row 1 */ 310 printf("\033[2J\033[1;1H"); 311 } 312 313 static int64_t 314 delta_eval(struct ptpv2_data_slave_ordinary *ptp_data) 315 { 316 int64_t delta; 317 uint64_t t1 = 0; 318 uint64_t t2 = 0; 319 uint64_t t3 = 0; 320 uint64_t t4 = 0; 321 322 t1 = timespec64_to_ns(&ptp_data->tstamp1); 323 t2 = timespec64_to_ns(&ptp_data->tstamp2); 324 t3 = timespec64_to_ns(&ptp_data->tstamp3); 325 t4 = timespec64_to_ns(&ptp_data->tstamp4); 326 327 delta = -((int64_t)((t2 - t1) - (t4 - t3))) / 2; 328 329 return delta; 330 } 331 332 /* 333 * Parse the PTP SYNC message. 334 */ 335 static void 336 parse_sync(struct ptpv2_data_slave_ordinary *ptp_data, uint16_t rx_tstamp_idx) 337 { 338 struct ptp_header *ptp_hdr; 339 340 ptp_hdr = (struct ptp_header *)(rte_pktmbuf_mtod(ptp_data->m, char *) 341 + sizeof(struct ether_hdr)); 342 ptp_data->seqID_SYNC = rte_be_to_cpu_16(ptp_hdr->seq_id); 343 344 if (ptp_data->ptpset == 0) { 345 rte_memcpy(&ptp_data->master_clock_id, 346 &ptp_hdr->source_port_id.clock_id, 347 sizeof(struct clock_id)); 348 ptp_data->ptpset = 1; 349 } 350 351 if (memcmp(&ptp_hdr->source_port_id.clock_id, 352 &ptp_hdr->source_port_id.clock_id, 353 sizeof(struct clock_id)) == 0) { 354 355 if (ptp_data->ptpset == 1) 356 rte_eth_timesync_read_rx_timestamp(ptp_data->portid, 357 &ptp_data->tstamp2, rx_tstamp_idx); 358 } 359 360 } 361 362 /* 363 * Parse the PTP FOLLOWUP message and send DELAY_REQ to the master clock. 364 */ 365 static void 366 parse_fup(struct ptpv2_data_slave_ordinary *ptp_data) 367 { 368 struct ether_hdr *eth_hdr; 369 struct ptp_header *ptp_hdr; 370 struct clock_id *client_clkid; 371 struct ptp_message *ptp_msg; 372 struct rte_mbuf *created_pkt; 373 struct tstamp *origin_tstamp; 374 struct ether_addr eth_multicast = ether_multicast; 375 size_t pkt_size; 376 int wait_us; 377 struct rte_mbuf *m = ptp_data->m; 378 379 eth_hdr = rte_pktmbuf_mtod(m, struct ether_hdr *); 380 ptp_hdr = (struct ptp_header *)(rte_pktmbuf_mtod(m, char *) 381 + sizeof(struct ether_hdr)); 382 if (memcmp(&ptp_data->master_clock_id, 383 &ptp_hdr->source_port_id.clock_id, 384 sizeof(struct clock_id)) != 0) 385 return; 386 387 ptp_data->seqID_FOLLOWUP = rte_be_to_cpu_16(ptp_hdr->seq_id); 388 ptp_msg = (struct ptp_message *) (rte_pktmbuf_mtod(m, char *) + 389 sizeof(struct ether_hdr)); 390 391 origin_tstamp = &ptp_msg->follow_up.precise_origin_tstamp; 392 ptp_data->tstamp1.tv_nsec = ntohl(origin_tstamp->ns); 393 ptp_data->tstamp1.tv_sec = 394 ((uint64_t)ntohl(origin_tstamp->sec_lsb)) | 395 (((uint64_t)ntohs(origin_tstamp->sec_msb)) << 32); 396 397 if (ptp_data->seqID_FOLLOWUP == ptp_data->seqID_SYNC) { 398 399 created_pkt = rte_pktmbuf_alloc(mbuf_pool); 400 pkt_size = sizeof(struct ether_hdr) + 401 sizeof(struct ptp_message); 402 created_pkt->data_len = pkt_size; 403 created_pkt->pkt_len = pkt_size; 404 eth_hdr = rte_pktmbuf_mtod(created_pkt, struct ether_hdr *); 405 rte_eth_macaddr_get(ptp_data->portid, ð_hdr->s_addr); 406 407 /* Set multicast address 01-1B-19-00-00-00. */ 408 ether_addr_copy(ð_multicast, ð_hdr->d_addr); 409 410 eth_hdr->ether_type = htons(PTP_PROTOCOL); 411 ptp_msg = (struct ptp_message *) 412 (rte_pktmbuf_mtod(created_pkt, char *) + 413 sizeof(struct ether_hdr)); 414 415 ptp_msg->delay_req.hdr.seq_id = htons(ptp_data->seqID_SYNC); 416 ptp_msg->delay_req.hdr.msg_type = DELAY_REQ; 417 ptp_msg->delay_req.hdr.ver = 2; 418 ptp_msg->delay_req.hdr.control = 1; 419 ptp_msg->delay_req.hdr.log_message_interval = 127; 420 ptp_msg->delay_req.hdr.message_length = 421 htons(sizeof(struct delay_req_msg)); 422 ptp_msg->delay_req.hdr.domain_number = ptp_hdr->domain_number; 423 424 /* Set up clock id. */ 425 client_clkid = 426 &ptp_msg->delay_req.hdr.source_port_id.clock_id; 427 428 client_clkid->id[0] = eth_hdr->s_addr.addr_bytes[0]; 429 client_clkid->id[1] = eth_hdr->s_addr.addr_bytes[1]; 430 client_clkid->id[2] = eth_hdr->s_addr.addr_bytes[2]; 431 client_clkid->id[3] = 0xFF; 432 client_clkid->id[4] = 0xFE; 433 client_clkid->id[5] = eth_hdr->s_addr.addr_bytes[3]; 434 client_clkid->id[6] = eth_hdr->s_addr.addr_bytes[4]; 435 client_clkid->id[7] = eth_hdr->s_addr.addr_bytes[5]; 436 437 rte_memcpy(&ptp_data->client_clock_id, 438 client_clkid, 439 sizeof(struct clock_id)); 440 441 /* Enable flag for hardware timestamping. */ 442 created_pkt->ol_flags |= PKT_TX_IEEE1588_TMST; 443 444 /*Read value from NIC to prevent latching with old value. */ 445 rte_eth_timesync_read_tx_timestamp(ptp_data->portid, 446 &ptp_data->tstamp3); 447 448 /* Transmit the packet. */ 449 rte_eth_tx_burst(ptp_data->portid, 0, &created_pkt, 1); 450 451 wait_us = 0; 452 ptp_data->tstamp3.tv_nsec = 0; 453 ptp_data->tstamp3.tv_sec = 0; 454 455 /* Wait at least 1 us to read TX timestamp. */ 456 while ((rte_eth_timesync_read_tx_timestamp(ptp_data->portid, 457 &ptp_data->tstamp3) < 0) && (wait_us < 1000)) { 458 rte_delay_us(1); 459 wait_us++; 460 } 461 } 462 } 463 464 /* 465 * Update the kernel time with the difference between it and the current NIC 466 * time. 467 */ 468 static inline void 469 update_kernel_time(void) 470 { 471 int64_t nsec; 472 struct timespec net_time, sys_time; 473 474 clock_gettime(CLOCK_REALTIME, &sys_time); 475 rte_eth_timesync_read_time(ptp_data.current_ptp_port, &net_time); 476 477 nsec = (int64_t)timespec64_to_ns(&net_time) - 478 (int64_t)timespec64_to_ns(&sys_time); 479 480 ptp_data.new_adj = ns_to_timeval(nsec); 481 482 /* 483 * If difference between kernel time and system time in NIC is too big 484 * (more than +/- 20 microseconds), use clock_settime to set directly 485 * the kernel time, as adjtime is better for small adjustments (takes 486 * longer to adjust the time). 487 */ 488 489 if (nsec > KERNEL_TIME_ADJUST_LIMIT || nsec < -KERNEL_TIME_ADJUST_LIMIT) 490 clock_settime(CLOCK_REALTIME, &net_time); 491 else 492 adjtime(&ptp_data.new_adj, 0); 493 494 495 } 496 497 /* 498 * Parse the DELAY_RESP message. 499 */ 500 static void 501 parse_drsp(struct ptpv2_data_slave_ordinary *ptp_data) 502 { 503 struct rte_mbuf *m = ptp_data->m; 504 struct ptp_message *ptp_msg; 505 struct tstamp *rx_tstamp; 506 uint16_t seq_id; 507 508 ptp_msg = (struct ptp_message *) (rte_pktmbuf_mtod(m, char *) + 509 sizeof(struct ether_hdr)); 510 seq_id = rte_be_to_cpu_16(ptp_msg->delay_resp.hdr.seq_id); 511 if (memcmp(&ptp_data->client_clock_id, 512 &ptp_msg->delay_resp.req_port_id.clock_id, 513 sizeof(struct clock_id)) == 0) { 514 if (seq_id == ptp_data->seqID_FOLLOWUP) { 515 rx_tstamp = &ptp_msg->delay_resp.rx_tstamp; 516 ptp_data->tstamp4.tv_nsec = ntohl(rx_tstamp->ns); 517 ptp_data->tstamp4.tv_sec = 518 ((uint64_t)ntohl(rx_tstamp->sec_lsb)) | 519 (((uint64_t)ntohs(rx_tstamp->sec_msb)) << 32); 520 521 /* Evaluate the delta for adjustment. */ 522 ptp_data->delta = delta_eval(ptp_data); 523 524 rte_eth_timesync_adjust_time(ptp_data->portid, 525 ptp_data->delta); 526 527 ptp_data->current_ptp_port = ptp_data->portid; 528 529 /* Update kernel time if enabled in app parameters. */ 530 if (ptp_data->kernel_time_set == 1) 531 update_kernel_time(); 532 533 534 535 } 536 } 537 } 538 539 /* This function processes PTP packets, implementing slave PTP IEEE1588 L2 540 * functionality. 541 */ 542 static void 543 parse_ptp_frames(uint16_t portid, struct rte_mbuf *m) { 544 struct ptp_header *ptp_hdr; 545 struct ether_hdr *eth_hdr; 546 uint16_t eth_type; 547 548 eth_hdr = rte_pktmbuf_mtod(m, struct ether_hdr *); 549 eth_type = rte_be_to_cpu_16(eth_hdr->ether_type); 550 551 if (eth_type == PTP_PROTOCOL) { 552 ptp_data.m = m; 553 ptp_data.portid = portid; 554 ptp_hdr = (struct ptp_header *)(rte_pktmbuf_mtod(m, char *) 555 + sizeof(struct ether_hdr)); 556 557 switch (ptp_hdr->msg_type) { 558 case SYNC: 559 parse_sync(&ptp_data, m->timesync); 560 break; 561 case FOLLOW_UP: 562 parse_fup(&ptp_data); 563 break; 564 case DELAY_RESP: 565 parse_drsp(&ptp_data); 566 print_clock_info(&ptp_data); 567 break; 568 default: 569 break; 570 } 571 } 572 } 573 574 /* 575 * The lcore main. This is the main thread that does the work, reading from an 576 * input port and writing to an output port. 577 */ 578 static __attribute__((noreturn)) void 579 lcore_main(void) 580 { 581 uint16_t portid; 582 unsigned nb_rx; 583 struct rte_mbuf *m; 584 585 /* 586 * Check that the port is on the same NUMA node as the polling thread 587 * for best performance. 588 */ 589 printf("\nCore %u Waiting for SYNC packets. [Ctrl+C to quit]\n", 590 rte_lcore_id()); 591 592 /* Run until the application is quit or killed. */ 593 594 while (1) { 595 /* Read packet from RX queues. */ 596 for (portid = 0; portid < ptp_enabled_port_nb; portid++) { 597 598 portid = ptp_enabled_ports[portid]; 599 nb_rx = rte_eth_rx_burst(portid, 0, &m, 1); 600 601 if (likely(nb_rx == 0)) 602 continue; 603 604 if (m->ol_flags & PKT_RX_IEEE1588_PTP) 605 parse_ptp_frames(portid, m); 606 607 rte_pktmbuf_free(m); 608 } 609 } 610 } 611 612 static void 613 print_usage(const char *prgname) 614 { 615 printf("%s [EAL options] -- -p PORTMASK -T VALUE\n" 616 " -T VALUE: 0 - Disable, 1 - Enable Linux Clock" 617 " Synchronization (0 default)\n" 618 " -p PORTMASK: hexadecimal bitmask of ports to configure\n", 619 prgname); 620 } 621 622 static int 623 ptp_parse_portmask(const char *portmask) 624 { 625 char *end = NULL; 626 unsigned long pm; 627 628 /* Parse the hexadecimal string. */ 629 pm = strtoul(portmask, &end, 16); 630 631 if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0')) 632 return -1; 633 634 if (pm == 0) 635 return -1; 636 637 return pm; 638 } 639 640 static int 641 parse_ptp_kernel(const char *param) 642 { 643 char *end = NULL; 644 unsigned long pm; 645 646 /* Parse the hexadecimal string. */ 647 pm = strtoul(param, &end, 16); 648 649 if ((param[0] == '\0') || (end == NULL) || (*end != '\0')) 650 return -1; 651 if (pm == 0) 652 return 0; 653 654 return 1; 655 } 656 657 /* Parse the commandline arguments. */ 658 static int 659 ptp_parse_args(int argc, char **argv) 660 { 661 int opt, ret; 662 char **argvopt; 663 int option_index; 664 char *prgname = argv[0]; 665 static struct option lgopts[] = { {NULL, 0, 0, 0} }; 666 667 argvopt = argv; 668 669 while ((opt = getopt_long(argc, argvopt, "p:T:", 670 lgopts, &option_index)) != EOF) { 671 672 switch (opt) { 673 674 /* Portmask. */ 675 case 'p': 676 ptp_enabled_port_mask = ptp_parse_portmask(optarg); 677 if (ptp_enabled_port_mask == 0) { 678 printf("invalid portmask\n"); 679 print_usage(prgname); 680 return -1; 681 } 682 break; 683 /* Time synchronization. */ 684 case 'T': 685 ret = parse_ptp_kernel(optarg); 686 if (ret < 0) { 687 print_usage(prgname); 688 return -1; 689 } 690 691 ptp_data.kernel_time_set = ret; 692 break; 693 694 default: 695 print_usage(prgname); 696 return -1; 697 } 698 } 699 700 argv[optind-1] = prgname; 701 702 optind = 1; /* Reset getopt lib. */ 703 704 return 0; 705 } 706 707 /* 708 * The main function, which does initialization and calls the per-lcore 709 * functions. 710 */ 711 int 712 main(int argc, char *argv[]) 713 { 714 unsigned nb_ports; 715 716 uint16_t portid; 717 718 /* Initialize the Environment Abstraction Layer (EAL). */ 719 int ret = rte_eal_init(argc, argv); 720 721 if (ret < 0) 722 rte_exit(EXIT_FAILURE, "Error with EAL initialization\n"); 723 724 memset(&ptp_data, '\0', sizeof(struct ptpv2_data_slave_ordinary)); 725 726 argc -= ret; 727 argv += ret; 728 729 ret = ptp_parse_args(argc, argv); 730 if (ret < 0) 731 rte_exit(EXIT_FAILURE, "Error with PTP initialization\n"); 732 733 /* Check that there is an even number of ports to send/receive on. */ 734 nb_ports = rte_eth_dev_count_avail(); 735 736 /* Creates a new mempool in memory to hold the mbufs. */ 737 mbuf_pool = rte_pktmbuf_pool_create("MBUF_POOL", NUM_MBUFS * nb_ports, 738 MBUF_CACHE_SIZE, 0, RTE_MBUF_DEFAULT_BUF_SIZE, rte_socket_id()); 739 740 if (mbuf_pool == NULL) 741 rte_exit(EXIT_FAILURE, "Cannot create mbuf pool\n"); 742 743 /* Initialize all ports. */ 744 RTE_ETH_FOREACH_DEV(portid) { 745 if ((ptp_enabled_port_mask & (1 << portid)) != 0) { 746 if (port_init(portid, mbuf_pool) == 0) { 747 ptp_enabled_ports[ptp_enabled_port_nb] = portid; 748 ptp_enabled_port_nb++; 749 } else { 750 rte_exit(EXIT_FAILURE, 751 "Cannot init port %"PRIu8 "\n", 752 portid); 753 } 754 } else 755 printf("Skipping disabled port %u\n", portid); 756 } 757 758 if (ptp_enabled_port_nb == 0) { 759 rte_exit(EXIT_FAILURE, 760 "All available ports are disabled." 761 " Please set portmask.\n"); 762 } 763 764 if (rte_lcore_count() > 1) 765 printf("\nWARNING: Too many lcores enabled. Only 1 used.\n"); 766 767 /* Call lcore_main on the master core only. */ 768 lcore_main(); 769 770 return 0; 771 } 772