1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2019 Intel Corporation
11 #include <rte_malloc.h>
12 #include <rte_ethdev.h>
13 #include <rte_rawdev.h>
14 #include <rte_ioat_rawdev.h>
16 /* size of ring used for software copying between rx and tx. */
17 #define RTE_LOGTYPE_IOAT RTE_LOGTYPE_USER1
18 #define MAX_PKT_BURST 32
19 #define MEMPOOL_CACHE_SIZE 512
20 #define MIN_POOL_SIZE 65536U
21 #define CMD_LINE_OPT_MAC_UPDATING "mac-updating"
22 #define CMD_LINE_OPT_NO_MAC_UPDATING "no-mac-updating"
23 #define CMD_LINE_OPT_PORTMASK "portmask"
24 #define CMD_LINE_OPT_NB_QUEUE "nb-queue"
25 #define CMD_LINE_OPT_COPY_TYPE "copy-type"
26 #define CMD_LINE_OPT_RING_SIZE "ring-size"
28 /* configurable number of RX/TX ring descriptors */
29 #define RX_DEFAULT_RINGSIZE 1024
30 #define TX_DEFAULT_RINGSIZE 1024
32 /* max number of RX queues per port */
33 #define MAX_RX_QUEUES_COUNT 8
35 struct rxtx_port_config {
39 /* for software copy mode */
40 struct rte_ring *rx_to_tx_ring;
41 /* for IOAT rawdev copy mode */
42 uint16_t ioat_ids[MAX_RX_QUEUES_COUNT];
45 struct rxtx_transmission_config {
46 struct rxtx_port_config ports[RTE_MAX_ETHPORTS];
51 /* per-port statistics struct */
52 struct ioat_port_statistics {
53 uint64_t rx[RTE_MAX_ETHPORTS];
54 uint64_t tx[RTE_MAX_ETHPORTS];
55 uint64_t tx_dropped[RTE_MAX_ETHPORTS];
56 uint64_t copy_dropped[RTE_MAX_ETHPORTS];
58 struct ioat_port_statistics port_statistics;
60 struct total_statistics {
61 uint64_t total_packets_dropped;
62 uint64_t total_packets_tx;
63 uint64_t total_packets_rx;
64 uint64_t total_successful_enqueues;
65 uint64_t total_failed_enqueues;
68 typedef enum copy_mode_t {
69 #define COPY_MODE_SW "sw"
71 #define COPY_MODE_IOAT "hw"
73 COPY_MODE_INVALID_NUM,
74 COPY_MODE_SIZE_NUM = COPY_MODE_INVALID_NUM
77 /* mask of enabled ports */
78 static uint32_t ioat_enabled_port_mask;
80 /* number of RX queues per port */
81 static uint16_t nb_queues = 1;
83 /* MAC updating enabled by default. */
84 static int mac_updating = 1;
86 /* hardare copy mode enabled by default. */
87 static copy_mode_t copy_mode = COPY_MODE_IOAT_NUM;
89 /* size of IOAT rawdev ring for hardware copy mode or
90 * rte_ring for software copy mode
92 static unsigned short ring_size = 2048;
94 /* global transmission config */
95 struct rxtx_transmission_config cfg;
97 /* configurable number of RX/TX ring descriptors */
98 static uint16_t nb_rxd = RX_DEFAULT_RINGSIZE;
99 static uint16_t nb_txd = TX_DEFAULT_RINGSIZE;
101 static volatile bool force_quit;
103 /* ethernet addresses of ports */
104 static struct rte_ether_addr ioat_ports_eth_addr[RTE_MAX_ETHPORTS];
106 static struct rte_eth_dev_tx_buffer *tx_buffer[RTE_MAX_ETHPORTS];
107 struct rte_mempool *ioat_pktmbuf_pool;
109 /* Print out statistics for one port. */
111 print_port_stats(uint16_t port_id)
113 printf("\nStatistics for port %u ------------------------------"
114 "\nPackets sent: %34"PRIu64
115 "\nPackets received: %30"PRIu64
116 "\nPackets dropped on tx: %25"PRIu64
117 "\nPackets dropped on copy: %23"PRIu64,
119 port_statistics.tx[port_id],
120 port_statistics.rx[port_id],
121 port_statistics.tx_dropped[port_id],
122 port_statistics.copy_dropped[port_id]);
125 /* Print out statistics for one IOAT rawdev device. */
127 print_rawdev_stats(uint32_t dev_id, uint64_t *xstats,
128 unsigned int *ids_xstats, uint16_t nb_xstats,
129 struct rte_rawdev_xstats_name *names_xstats)
133 printf("\nIOAT channel %u", dev_id);
134 for (i = 0; i < nb_xstats; i++)
135 printf("\n\t %s: %*"PRIu64,
136 names_xstats[ids_xstats[i]].name,
137 (int)(37 - strlen(names_xstats[ids_xstats[i]].name)),
142 print_total_stats(struct total_statistics *ts)
144 printf("\nAggregate statistics ==============================="
145 "\nTotal packets Tx: %24"PRIu64" [pps]"
146 "\nTotal packets Rx: %24"PRIu64" [pps]"
147 "\nTotal packets dropped: %19"PRIu64" [pps]",
148 ts->total_packets_tx,
149 ts->total_packets_rx,
150 ts->total_packets_dropped);
152 if (copy_mode == COPY_MODE_IOAT_NUM) {
153 printf("\nTotal IOAT successful enqueues: %8"PRIu64" [enq/s]"
154 "\nTotal IOAT failed enqueues: %12"PRIu64" [enq/s]",
155 ts->total_successful_enqueues,
156 ts->total_failed_enqueues);
159 printf("\n====================================================\n");
162 /* Print out statistics on packets dropped. */
164 print_stats(char *prgname)
166 struct total_statistics ts, delta_ts;
167 uint32_t i, port_id, dev_id;
168 struct rte_rawdev_xstats_name *names_xstats;
170 unsigned int *ids_xstats, nb_xstats;
171 char status_string[120]; /* to print at the top of the output */
175 const char clr[] = { 27, '[', '2', 'J', '\0' };
176 const char topLeft[] = { 27, '[', '1', ';', '1', 'H', '\0' };
178 status_strlen = snprintf(status_string, sizeof(status_string),
180 status_strlen += snprintf(status_string + status_strlen,
181 sizeof(status_string) - status_strlen,
182 "Worker Threads = %d, ",
183 rte_lcore_count() > 2 ? 2 : 1);
184 status_strlen += snprintf(status_string + status_strlen,
185 sizeof(status_string) - status_strlen,
186 "Copy Mode = %s,\n", copy_mode == COPY_MODE_SW_NUM ?
187 COPY_MODE_SW : COPY_MODE_IOAT);
188 status_strlen += snprintf(status_string + status_strlen,
189 sizeof(status_string) - status_strlen,
190 "Updating MAC = %s, ", mac_updating ?
191 "enabled" : "disabled");
192 status_strlen += snprintf(status_string + status_strlen,
193 sizeof(status_string) - status_strlen,
194 "Rx Queues = %d, ", nb_queues);
195 status_strlen += snprintf(status_string + status_strlen,
196 sizeof(status_string) - status_strlen,
197 "Ring Size = %d\n", ring_size);
199 /* Allocate memory for xstats names and values */
200 nb_xstats = rte_rawdev_xstats_names_get(
201 cfg.ports[0].ioat_ids[0], NULL, 0);
203 names_xstats = malloc(sizeof(*names_xstats) * nb_xstats);
204 if (names_xstats == NULL) {
205 rte_exit(EXIT_FAILURE,
206 "Error allocating xstat names memory\n");
208 rte_rawdev_xstats_names_get(cfg.ports[0].ioat_ids[0],
209 names_xstats, nb_xstats);
211 ids_xstats = malloc(sizeof(*ids_xstats) * 2);
212 if (ids_xstats == NULL) {
213 rte_exit(EXIT_FAILURE,
214 "Error allocating xstat ids_xstats memory\n");
217 xstats = malloc(sizeof(*xstats) * 2);
218 if (xstats == NULL) {
219 rte_exit(EXIT_FAILURE,
220 "Error allocating xstat memory\n");
223 /* Get failed/successful enqueues stats index */
224 ids_xstats[0] = ids_xstats[1] = nb_xstats;
225 for (i = 0; i < nb_xstats; i++) {
226 if (!strcmp(names_xstats[i].name, "failed_enqueues"))
228 else if (!strcmp(names_xstats[i].name, "successful_enqueues"))
230 if (ids_xstats[0] < nb_xstats && ids_xstats[1] < nb_xstats)
233 if (ids_xstats[0] == nb_xstats || ids_xstats[1] == nb_xstats) {
234 rte_exit(EXIT_FAILURE,
235 "Error getting failed/successful enqueues stats index\n");
238 memset(&ts, 0, sizeof(struct total_statistics));
240 while (!force_quit) {
241 /* Sleep for 1 second each round - init sleep allows reading
242 * messages from app startup.
246 /* Clear screen and move to top left */
247 printf("%s%s", clr, topLeft);
249 memset(&delta_ts, 0, sizeof(struct total_statistics));
251 printf("%s", status_string);
253 for (i = 0; i < cfg.nb_ports; i++) {
254 port_id = cfg.ports[i].rxtx_port;
255 print_port_stats(port_id);
257 delta_ts.total_packets_dropped +=
258 port_statistics.tx_dropped[port_id]
259 + port_statistics.copy_dropped[port_id];
260 delta_ts.total_packets_tx +=
261 port_statistics.tx[port_id];
262 delta_ts.total_packets_rx +=
263 port_statistics.rx[port_id];
265 if (copy_mode == COPY_MODE_IOAT_NUM) {
268 for (j = 0; j < cfg.ports[i].nb_queues; j++) {
269 dev_id = cfg.ports[i].ioat_ids[j];
270 rte_rawdev_xstats_get(dev_id,
271 ids_xstats, xstats, 2);
273 print_rawdev_stats(dev_id, xstats,
274 ids_xstats, 2, names_xstats);
276 delta_ts.total_failed_enqueues +=
277 xstats[ids_xstats[0]];
278 delta_ts.total_successful_enqueues +=
279 xstats[ids_xstats[1]];
284 delta_ts.total_packets_tx -= ts.total_packets_tx;
285 delta_ts.total_packets_rx -= ts.total_packets_rx;
286 delta_ts.total_packets_dropped -= ts.total_packets_dropped;
287 delta_ts.total_failed_enqueues -= ts.total_failed_enqueues;
288 delta_ts.total_successful_enqueues -=
289 ts.total_successful_enqueues;
292 print_total_stats(&delta_ts);
294 ts.total_packets_tx += delta_ts.total_packets_tx;
295 ts.total_packets_rx += delta_ts.total_packets_rx;
296 ts.total_packets_dropped += delta_ts.total_packets_dropped;
297 ts.total_failed_enqueues += delta_ts.total_failed_enqueues;
298 ts.total_successful_enqueues +=
299 delta_ts.total_successful_enqueues;
308 update_mac_addrs(struct rte_mbuf *m, uint32_t dest_portid)
310 struct rte_ether_hdr *eth;
313 eth = rte_pktmbuf_mtod(m, struct rte_ether_hdr *);
315 /* 02:00:00:00:00:xx - overwriting 2 bytes of source address but
316 * it's acceptable cause it gets overwritten by rte_ether_addr_copy
318 tmp = ð->d_addr.addr_bytes[0];
319 *((uint64_t *)tmp) = 0x000000000002 + ((uint64_t)dest_portid << 40);
322 rte_ether_addr_copy(&ioat_ports_eth_addr[dest_portid], ð->s_addr);
326 pktmbuf_sw_copy(struct rte_mbuf *src, struct rte_mbuf *dst)
328 /* Copy packet metadata */
329 rte_memcpy(&dst->rearm_data,
331 offsetof(struct rte_mbuf, cacheline1)
332 - offsetof(struct rte_mbuf, rearm_data));
334 /* Copy packet data */
335 rte_memcpy(rte_pktmbuf_mtod(dst, char *),
336 rte_pktmbuf_mtod(src, char *), src->data_len);
340 ioat_enqueue_packets(struct rte_mbuf **pkts,
341 uint32_t nb_rx, uint16_t dev_id)
345 struct rte_mbuf *pkts_copy[MAX_PKT_BURST];
347 const uint64_t addr_offset = RTE_PTR_DIFF(pkts[0]->buf_addr,
348 &pkts[0]->rearm_data);
350 ret = rte_mempool_get_bulk(ioat_pktmbuf_pool,
351 (void *)pkts_copy, nb_rx);
353 if (unlikely(ret < 0))
354 rte_exit(EXIT_FAILURE, "Unable to allocate memory.\n");
356 for (i = 0; i < nb_rx; i++) {
357 /* Perform data copy */
358 ret = rte_ioat_enqueue_copy(dev_id,
361 pkts_copy[i]->buf_iova
363 rte_pktmbuf_data_len(pkts[i])
366 (uintptr_t)pkts_copy[i],
374 /* Free any not enqueued packets. */
375 rte_mempool_put_bulk(ioat_pktmbuf_pool, (void *)&pkts[i], nb_rx - i);
376 rte_mempool_put_bulk(ioat_pktmbuf_pool, (void *)&pkts_copy[i],
382 /* Receive packets on one port and enqueue to IOAT rawdev or rte_ring. */
384 ioat_rx_port(struct rxtx_port_config *rx_config)
386 uint32_t nb_rx, nb_enq, i, j;
387 struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
389 for (i = 0; i < rx_config->nb_queues; i++) {
391 nb_rx = rte_eth_rx_burst(rx_config->rxtx_port, i,
392 pkts_burst, MAX_PKT_BURST);
397 port_statistics.rx[rx_config->rxtx_port] += nb_rx;
399 if (copy_mode == COPY_MODE_IOAT_NUM) {
400 /* Perform packet hardware copy */
401 nb_enq = ioat_enqueue_packets(pkts_burst,
402 nb_rx, rx_config->ioat_ids[i]);
404 rte_ioat_do_copies(rx_config->ioat_ids[i]);
406 /* Perform packet software copy, free source packets */
408 struct rte_mbuf *pkts_burst_copy[MAX_PKT_BURST];
410 ret = rte_mempool_get_bulk(ioat_pktmbuf_pool,
411 (void *)pkts_burst_copy, nb_rx);
413 if (unlikely(ret < 0))
414 rte_exit(EXIT_FAILURE,
415 "Unable to allocate memory.\n");
417 for (j = 0; j < nb_rx; j++)
418 pktmbuf_sw_copy(pkts_burst[j],
421 rte_mempool_put_bulk(ioat_pktmbuf_pool,
422 (void *)pkts_burst, nb_rx);
424 nb_enq = rte_ring_enqueue_burst(
425 rx_config->rx_to_tx_ring,
426 (void *)pkts_burst_copy, nb_rx, NULL);
428 /* Free any not enqueued packets. */
429 rte_mempool_put_bulk(ioat_pktmbuf_pool,
430 (void *)&pkts_burst_copy[nb_enq],
434 port_statistics.copy_dropped[rx_config->rxtx_port] +=
439 /* Transmit packets from IOAT rawdev/rte_ring for one port. */
441 ioat_tx_port(struct rxtx_port_config *tx_config)
443 uint32_t i, j, nb_dq = 0;
444 struct rte_mbuf *mbufs_src[MAX_PKT_BURST];
445 struct rte_mbuf *mbufs_dst[MAX_PKT_BURST];
447 for (i = 0; i < tx_config->nb_queues; i++) {
448 if (copy_mode == COPY_MODE_IOAT_NUM) {
449 /* Deque the mbufs from IOAT device. */
450 nb_dq = rte_ioat_completed_copies(
451 tx_config->ioat_ids[i], MAX_PKT_BURST,
452 (void *)mbufs_src, (void *)mbufs_dst);
454 /* Deque the mbufs from rx_to_tx_ring. */
455 nb_dq = rte_ring_dequeue_burst(
456 tx_config->rx_to_tx_ring, (void *)mbufs_dst,
457 MAX_PKT_BURST, NULL);
463 if (copy_mode == COPY_MODE_IOAT_NUM)
464 rte_mempool_put_bulk(ioat_pktmbuf_pool,
465 (void *)mbufs_src, nb_dq);
467 /* Update macs if enabled */
469 for (j = 0; j < nb_dq; j++)
470 update_mac_addrs(mbufs_dst[j],
471 tx_config->rxtx_port);
474 const uint16_t nb_tx = rte_eth_tx_burst(
475 tx_config->rxtx_port, 0,
476 (void *)mbufs_dst, nb_dq);
478 port_statistics.tx[tx_config->rxtx_port] += nb_tx;
480 /* Free any unsent packets. */
481 if (unlikely(nb_tx < nb_dq))
482 rte_mempool_put_bulk(ioat_pktmbuf_pool,
483 (void *)&mbufs_dst[nb_tx],
488 /* Main rx processing loop for IOAT rawdev. */
493 uint16_t nb_ports = cfg.nb_ports;
495 RTE_LOG(INFO, IOAT, "Entering main rx loop for copy on lcore %u\n",
499 for (i = 0; i < nb_ports; i++)
500 ioat_rx_port(&cfg.ports[i]);
503 /* Main tx processing loop for hardware copy. */
508 uint16_t nb_ports = cfg.nb_ports;
510 RTE_LOG(INFO, IOAT, "Entering main tx loop for copy on lcore %u\n",
514 for (i = 0; i < nb_ports; i++)
515 ioat_tx_port(&cfg.ports[i]);
518 /* Main rx and tx loop if only one slave lcore available */
523 uint16_t nb_ports = cfg.nb_ports;
525 RTE_LOG(INFO, IOAT, "Entering main rx and tx loop for copy on"
526 " lcore %u\n", rte_lcore_id());
529 for (i = 0; i < nb_ports; i++) {
530 ioat_rx_port(&cfg.ports[i]);
531 ioat_tx_port(&cfg.ports[i]);
535 static void start_forwarding_cores(void)
537 uint32_t lcore_id = rte_lcore_id();
539 RTE_LOG(INFO, IOAT, "Entering %s on lcore %u\n",
540 __func__, rte_lcore_id());
542 if (cfg.nb_lcores == 1) {
543 lcore_id = rte_get_next_lcore(lcore_id, true, true);
544 rte_eal_remote_launch((lcore_function_t *)rxtx_main_loop,
546 } else if (cfg.nb_lcores > 1) {
547 lcore_id = rte_get_next_lcore(lcore_id, true, true);
548 rte_eal_remote_launch((lcore_function_t *)rx_main_loop,
551 lcore_id = rte_get_next_lcore(lcore_id, true, true);
552 rte_eal_remote_launch((lcore_function_t *)tx_main_loop, NULL,
559 ioat_usage(const char *prgname)
561 printf("%s [EAL options] -- -p PORTMASK [-q NQ]\n"
562 " -p --portmask: hexadecimal bitmask of ports to configure\n"
563 " -q NQ: number of RX queues per port (default is 1)\n"
564 " --[no-]mac-updating: Enable or disable MAC addresses updating (enabled by default)\n"
566 " - The source MAC address is replaced by the TX port MAC address\n"
567 " - The destination MAC address is replaced by 02:00:00:00:00:TX_PORT_ID\n"
568 " -c --copy-type CT: type of copy: sw|hw\n"
569 " -s --ring-size RS: size of IOAT rawdev ring for hardware copy mode or rte_ring for software copy mode\n",
574 ioat_parse_portmask(const char *portmask)
579 /* Parse hexadecimal string */
580 pm = strtoul(portmask, &end, 16);
581 if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0'))
588 ioat_parse_copy_mode(const char *copy_mode)
590 if (strcmp(copy_mode, COPY_MODE_SW) == 0)
591 return COPY_MODE_SW_NUM;
592 else if (strcmp(copy_mode, COPY_MODE_IOAT) == 0)
593 return COPY_MODE_IOAT_NUM;
595 return COPY_MODE_INVALID_NUM;
598 /* Parse the argument given in the command line of the application */
600 ioat_parse_args(int argc, char **argv, unsigned int nb_ports)
602 static const char short_options[] =
604 "q:" /* number of RX queues per port */
605 "c:" /* copy type (sw|hw) */
609 static const struct option lgopts[] = {
610 {CMD_LINE_OPT_MAC_UPDATING, no_argument, &mac_updating, 1},
611 {CMD_LINE_OPT_NO_MAC_UPDATING, no_argument, &mac_updating, 0},
612 {CMD_LINE_OPT_PORTMASK, required_argument, NULL, 'p'},
613 {CMD_LINE_OPT_NB_QUEUE, required_argument, NULL, 'q'},
614 {CMD_LINE_OPT_COPY_TYPE, required_argument, NULL, 'c'},
615 {CMD_LINE_OPT_RING_SIZE, required_argument, NULL, 's'},
619 const unsigned int default_port_mask = (1 << nb_ports) - 1;
623 char *prgname = argv[0];
625 ioat_enabled_port_mask = default_port_mask;
628 while ((opt = getopt_long(argc, argvopt, short_options,
629 lgopts, &option_index)) != EOF) {
634 ioat_enabled_port_mask = ioat_parse_portmask(optarg);
635 if (ioat_enabled_port_mask & ~default_port_mask ||
636 ioat_enabled_port_mask <= 0) {
637 printf("Invalid portmask, %s, suggest 0x%x\n",
638 optarg, default_port_mask);
645 nb_queues = atoi(optarg);
646 if (nb_queues == 0 || nb_queues > MAX_RX_QUEUES_COUNT) {
647 printf("Invalid RX queues number %s. Max %u\n",
648 optarg, MAX_RX_QUEUES_COUNT);
655 copy_mode = ioat_parse_copy_mode(optarg);
656 if (copy_mode == COPY_MODE_INVALID_NUM) {
657 printf("Invalid copy type. Use: sw, hw\n");
664 ring_size = atoi(optarg);
665 if (ring_size == 0) {
666 printf("Invalid ring size, %s.\n", optarg);
682 printf("MAC updating %s\n", mac_updating ? "enabled" : "disabled");
684 argv[optind - 1] = prgname;
687 optind = 1; /* reset getopt lib */
691 /* check link status, return true if at least one port is up */
693 check_link_status(uint32_t port_mask)
696 struct rte_eth_link link;
699 printf("\nChecking link status\n");
700 RTE_ETH_FOREACH_DEV(portid) {
701 if ((port_mask & (1 << portid)) == 0)
704 memset(&link, 0, sizeof(link));
705 rte_eth_link_get(portid, &link);
707 /* Print link status */
708 if (link.link_status) {
710 "Port %d Link Up. Speed %u Mbps - %s\n",
711 portid, link.link_speed,
712 (link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
713 ("full-duplex") : ("half-duplex\n"));
716 printf("Port %d Link Down\n", portid);
722 configure_rawdev_queue(uint32_t dev_id)
724 struct rte_ioat_rawdev_config dev_config = { .ring_size = ring_size };
725 struct rte_rawdev_info info = { .dev_private = &dev_config };
727 if (rte_rawdev_configure(dev_id, &info) != 0) {
728 rte_exit(EXIT_FAILURE,
729 "Error with rte_rawdev_configure()\n");
731 if (rte_rawdev_start(dev_id) != 0) {
732 rte_exit(EXIT_FAILURE,
733 "Error with rte_rawdev_start()\n");
740 uint16_t nb_rawdev = 0, rdev_id = 0;
743 for (i = 0; i < cfg.nb_ports; i++) {
744 for (j = 0; j < cfg.ports[i].nb_queues; j++) {
745 struct rte_rawdev_info rdev_info = { 0 };
748 if (rdev_id == rte_rawdev_count())
750 rte_rawdev_info_get(rdev_id++, &rdev_info);
751 } while (strcmp(rdev_info.driver_name,
752 IOAT_PMD_RAWDEV_NAME_STR) != 0);
754 cfg.ports[i].ioat_ids[j] = rdev_id - 1;
755 configure_rawdev_queue(cfg.ports[i].ioat_ids[j]);
760 if (nb_rawdev < cfg.nb_ports * cfg.ports[0].nb_queues)
761 rte_exit(EXIT_FAILURE,
762 "Not enough IOAT rawdevs (%u) for all queues (%u).\n",
763 nb_rawdev, cfg.nb_ports * cfg.ports[0].nb_queues);
764 RTE_LOG(INFO, IOAT, "Number of used rawdevs: %u.\n", nb_rawdev);
772 for (i = 0; i < cfg.nb_ports; i++) {
773 char ring_name[RTE_RING_NAMESIZE];
775 snprintf(ring_name, sizeof(ring_name), "rx_to_tx_ring_%u", i);
776 /* Create ring for inter core communication */
777 cfg.ports[i].rx_to_tx_ring = rte_ring_create(
778 ring_name, ring_size,
779 rte_socket_id(), RING_F_SP_ENQ | RING_F_SC_DEQ);
781 if (cfg.ports[i].rx_to_tx_ring == NULL)
782 rte_exit(EXIT_FAILURE, "Ring create failed: %s\n",
783 rte_strerror(rte_errno));
788 * Initializes a given port using global settings and with the RX buffers
789 * coming from the mbuf_pool passed as a parameter.
792 port_init(uint16_t portid, struct rte_mempool *mbuf_pool, uint16_t nb_queues)
794 /* configuring port to use RSS for multiple RX queues */
795 static const struct rte_eth_conf port_conf = {
797 .mq_mode = ETH_MQ_RX_RSS,
798 .max_rx_pkt_len = RTE_ETHER_MAX_LEN
803 .rss_hf = ETH_RSS_PROTO_MASK,
808 struct rte_eth_rxconf rxq_conf;
809 struct rte_eth_txconf txq_conf;
810 struct rte_eth_conf local_port_conf = port_conf;
811 struct rte_eth_dev_info dev_info;
814 /* Skip ports that are not enabled */
815 if ((ioat_enabled_port_mask & (1 << portid)) == 0) {
816 printf("Skipping disabled port %u\n", portid);
821 printf("Initializing port %u... ", portid);
823 rte_eth_dev_info_get(portid, &dev_info);
824 local_port_conf.rx_adv_conf.rss_conf.rss_hf &=
825 dev_info.flow_type_rss_offloads;
826 if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
827 local_port_conf.txmode.offloads |=
828 DEV_TX_OFFLOAD_MBUF_FAST_FREE;
829 ret = rte_eth_dev_configure(portid, nb_queues, 1, &local_port_conf);
831 rte_exit(EXIT_FAILURE, "Cannot configure device:"
832 " err=%d, port=%u\n", ret, portid);
834 ret = rte_eth_dev_adjust_nb_rx_tx_desc(portid, &nb_rxd,
837 rte_exit(EXIT_FAILURE,
838 "Cannot adjust number of descriptors: err=%d, port=%u\n",
841 rte_eth_macaddr_get(portid, &ioat_ports_eth_addr[portid]);
844 rxq_conf = dev_info.default_rxconf;
845 rxq_conf.offloads = local_port_conf.rxmode.offloads;
846 for (i = 0; i < nb_queues; i++) {
847 ret = rte_eth_rx_queue_setup(portid, i, nb_rxd,
848 rte_eth_dev_socket_id(portid), &rxq_conf,
851 rte_exit(EXIT_FAILURE,
852 "rte_eth_rx_queue_setup:err=%d,port=%u, queue_id=%u\n",
856 /* Init one TX queue on each port */
857 txq_conf = dev_info.default_txconf;
858 txq_conf.offloads = local_port_conf.txmode.offloads;
859 ret = rte_eth_tx_queue_setup(portid, 0, nb_txd,
860 rte_eth_dev_socket_id(portid),
863 rte_exit(EXIT_FAILURE,
864 "rte_eth_tx_queue_setup:err=%d,port=%u\n",
867 /* Initialize TX buffers */
868 tx_buffer[portid] = rte_zmalloc_socket("tx_buffer",
869 RTE_ETH_TX_BUFFER_SIZE(MAX_PKT_BURST), 0,
870 rte_eth_dev_socket_id(portid));
871 if (tx_buffer[portid] == NULL)
872 rte_exit(EXIT_FAILURE,
873 "Cannot allocate buffer for tx on port %u\n",
876 rte_eth_tx_buffer_init(tx_buffer[portid], MAX_PKT_BURST);
878 ret = rte_eth_tx_buffer_set_err_callback(tx_buffer[portid],
879 rte_eth_tx_buffer_count_callback,
880 &port_statistics.tx_dropped[portid]);
882 rte_exit(EXIT_FAILURE,
883 "Cannot set error callback for tx buffer on port %u\n",
887 ret = rte_eth_dev_start(portid);
889 rte_exit(EXIT_FAILURE,
890 "rte_eth_dev_start:err=%d, port=%u\n",
893 rte_eth_promiscuous_enable(portid);
895 printf("Port %u, MAC address: %02X:%02X:%02X:%02X:%02X:%02X\n\n",
897 ioat_ports_eth_addr[portid].addr_bytes[0],
898 ioat_ports_eth_addr[portid].addr_bytes[1],
899 ioat_ports_eth_addr[portid].addr_bytes[2],
900 ioat_ports_eth_addr[portid].addr_bytes[3],
901 ioat_ports_eth_addr[portid].addr_bytes[4],
902 ioat_ports_eth_addr[portid].addr_bytes[5]);
904 cfg.ports[cfg.nb_ports].rxtx_port = portid;
905 cfg.ports[cfg.nb_ports++].nb_queues = nb_queues;
909 signal_handler(int signum)
911 if (signum == SIGINT || signum == SIGTERM) {
912 printf("\n\nSignal %d received, preparing to exit...\n",
919 main(int argc, char **argv)
922 uint16_t nb_ports, portid;
924 unsigned int nb_mbufs;
927 ret = rte_eal_init(argc, argv);
929 rte_exit(EXIT_FAILURE, "Invalid EAL arguments\n");
934 signal(SIGINT, signal_handler);
935 signal(SIGTERM, signal_handler);
937 nb_ports = rte_eth_dev_count_avail();
939 rte_exit(EXIT_FAILURE, "No Ethernet ports - bye\n");
941 /* Parse application arguments (after the EAL ones) */
942 ret = ioat_parse_args(argc, argv, nb_ports);
944 rte_exit(EXIT_FAILURE, "Invalid IOAT arguments\n");
946 nb_mbufs = RTE_MAX(nb_ports * (nb_queues * (nb_rxd + nb_txd +
947 4 * MAX_PKT_BURST) + rte_lcore_count() * MEMPOOL_CACHE_SIZE),
950 /* Create the mbuf pool */
951 ioat_pktmbuf_pool = rte_pktmbuf_pool_create("mbuf_pool", nb_mbufs,
952 MEMPOOL_CACHE_SIZE, 0, RTE_MBUF_DEFAULT_BUF_SIZE,
954 if (ioat_pktmbuf_pool == NULL)
955 rte_exit(EXIT_FAILURE, "Cannot init mbuf pool\n");
957 /* Initialise each port */
959 RTE_ETH_FOREACH_DEV(portid)
960 port_init(portid, ioat_pktmbuf_pool, nb_queues);
962 /* Initialize port xstats */
963 memset(&port_statistics, 0, sizeof(port_statistics));
965 while (!check_link_status(ioat_enabled_port_mask) && !force_quit)
968 /* Check if there is enough lcores for all ports. */
969 cfg.nb_lcores = rte_lcore_count() - 1;
970 if (cfg.nb_lcores < 1)
971 rte_exit(EXIT_FAILURE,
972 "There should be at least one slave lcore.\n");
974 if (copy_mode == COPY_MODE_IOAT_NUM)
976 else /* copy_mode == COPY_MODE_SW_NUM */
979 start_forwarding_cores();
980 /* master core prints stats while other cores forward */
981 print_stats(argv[0]);
983 /* force_quit is true when we get here */
984 rte_eal_mp_wait_lcore();
987 for (i = 0; i < cfg.nb_ports; i++) {
988 printf("Closing port %d\n", cfg.ports[i].rxtx_port);
989 rte_eth_dev_stop(cfg.ports[i].rxtx_port);
990 rte_eth_dev_close(cfg.ports[i].rxtx_port);
991 if (copy_mode == COPY_MODE_IOAT_NUM) {
992 for (j = 0; j < cfg.ports[i].nb_queues; j++) {
993 printf("Stopping rawdev %d\n",
994 cfg.ports[i].ioat_ids[j]);
995 rte_rawdev_stop(cfg.ports[i].ioat_ids[j]);
997 } else /* copy_mode == COPY_MODE_SW_NUM */
998 rte_ring_free(cfg.ports[i].rx_to_tx_ring);