1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright(c) 2017 - 2018 Intel Corporation. */
4 #include <asm/barrier.h>
9 #include <linux/compiler.h>
10 #include <linux/if_link.h>
11 #include <linux/if_xdp.h>
12 #include <linux/if_ether.h>
14 #include <net/ethernet.h>
24 #include <sys/resource.h>
25 #include <sys/socket.h>
26 #include <sys/types.h>
47 #define NUM_FRAMES (4 * 1024)
50 #define DEBUG_HEXDUMP 0
55 static unsigned long prev_time;
63 static enum benchmark_type opt_bench = BENCH_RXDROP;
64 static u32 opt_xdp_flags = XDP_FLAGS_UPDATE_IF_NOEXIST;
65 static const char *opt_if = "";
66 static int opt_ifindex;
68 static unsigned long opt_duration;
69 static unsigned long start_time;
70 static bool benchmark_done;
72 static int opt_interval = 1;
73 static u32 opt_xdp_bind_flags = XDP_USE_NEED_WAKEUP;
74 static u32 opt_umem_flags;
75 static int opt_unaligned_chunks;
76 static int opt_mmap_flags;
77 static u32 opt_xdp_bind_flags;
78 static int opt_xsk_frame_size = XSK_UMEM__DEFAULT_FRAME_SIZE;
79 static int opt_timeout = 1000;
80 static bool opt_need_wakeup = true;
81 static u32 opt_num_xsks = 1;
84 struct xsk_umem_info {
85 struct xsk_ring_prod fq;
86 struct xsk_ring_cons cq;
87 struct xsk_umem *umem;
91 struct xsk_socket_info {
92 struct xsk_ring_cons rx;
93 struct xsk_ring_prod tx;
94 struct xsk_umem_info *umem;
95 struct xsk_socket *xsk;
96 unsigned long rx_npkts;
97 unsigned long tx_npkts;
98 unsigned long prev_rx_npkts;
99 unsigned long prev_tx_npkts;
103 static int num_socks;
104 struct xsk_socket_info *xsks[MAX_SOCKS];
106 static unsigned long get_nsecs(void)
110 clock_gettime(CLOCK_MONOTONIC, &ts);
111 return ts.tv_sec * 1000000000UL + ts.tv_nsec;
114 static void print_benchmark(bool running)
116 const char *bench_str = "INVALID";
118 if (opt_bench == BENCH_RXDROP)
119 bench_str = "rxdrop";
120 else if (opt_bench == BENCH_TXONLY)
121 bench_str = "txonly";
122 else if (opt_bench == BENCH_L2FWD)
125 printf("%s:%d %s ", opt_if, opt_queue, bench_str);
126 if (opt_xdp_flags & XDP_FLAGS_SKB_MODE)
128 else if (opt_xdp_flags & XDP_FLAGS_DRV_MODE)
137 printf("running...");
142 static void dump_stats(void)
144 unsigned long now = get_nsecs();
145 long dt = now - prev_time;
150 for (i = 0; i < num_socks && xsks[i]; i++) {
151 char *fmt = "%-15s %'-11.0f %'-11lu\n";
152 double rx_pps, tx_pps;
154 rx_pps = (xsks[i]->rx_npkts - xsks[i]->prev_rx_npkts) *
156 tx_pps = (xsks[i]->tx_npkts - xsks[i]->prev_tx_npkts) *
159 printf("\n sock%d@", i);
160 print_benchmark(false);
163 printf("%-15s %-11s %-11s %-11.2f\n", "", "pps", "pkts",
165 printf(fmt, "rx", rx_pps, xsks[i]->rx_npkts);
166 printf(fmt, "tx", tx_pps, xsks[i]->tx_npkts);
168 xsks[i]->prev_rx_npkts = xsks[i]->rx_npkts;
169 xsks[i]->prev_tx_npkts = xsks[i]->tx_npkts;
173 static bool is_benchmark_done(void)
175 if (opt_duration > 0) {
176 unsigned long dt = (get_nsecs() - start_time);
178 if (dt >= opt_duration)
179 benchmark_done = true;
181 return benchmark_done;
184 static void *poller(void *arg)
187 while (!is_benchmark_done()) {
195 static void remove_xdp_program(void)
197 u32 curr_prog_id = 0;
199 if (bpf_get_link_xdp_id(opt_ifindex, &curr_prog_id, opt_xdp_flags)) {
200 printf("bpf_get_link_xdp_id failed\n");
203 if (prog_id == curr_prog_id)
204 bpf_set_link_xdp_fd(opt_ifindex, -1, opt_xdp_flags);
205 else if (!curr_prog_id)
206 printf("couldn't find a prog id on a given interface\n");
208 printf("program on interface changed, not removing\n");
211 static void int_exit(int sig)
213 benchmark_done = true;
216 static void xdpsock_cleanup(void)
218 struct xsk_umem *umem = xsks[0]->umem->umem;
222 for (i = 0; i < num_socks; i++)
223 xsk_socket__delete(xsks[i]->xsk);
224 (void)xsk_umem__delete(umem);
225 remove_xdp_program();
228 static void __exit_with_error(int error, const char *file, const char *func,
231 fprintf(stderr, "%s:%s:%i: errno: %d/\"%s\"\n", file, func,
232 line, error, strerror(error));
234 remove_xdp_program();
238 #define exit_with_error(error) __exit_with_error(error, __FILE__, __func__, \
241 static const char pkt_data[] =
242 "\x3c\xfd\xfe\x9e\x7f\x71\xec\xb1\xd7\x98\x3a\xc0\x08\x00\x45\x00"
243 "\x00\x2e\x00\x00\x00\x00\x40\x11\x88\x97\x05\x08\x07\x08\xc8\x14"
244 "\x1e\x04\x10\x92\x10\x92\x00\x1a\x6d\xa3\x34\x33\x1f\x69\x40\x6b"
245 "\x54\x59\xb6\x14\x2d\x11\x44\xbf\xaf\xd9\xbe\xaa";
247 static void swap_mac_addresses(void *data)
249 struct ether_header *eth = (struct ether_header *)data;
250 struct ether_addr *src_addr = (struct ether_addr *)ð->ether_shost;
251 struct ether_addr *dst_addr = (struct ether_addr *)ð->ether_dhost;
252 struct ether_addr tmp;
255 *src_addr = *dst_addr;
259 static void hex_dump(void *pkt, size_t length, u64 addr)
261 const unsigned char *address = (unsigned char *)pkt;
262 const unsigned char *line = address;
263 size_t line_size = 32;
271 sprintf(buf, "addr=%llu", addr);
272 printf("length = %zu\n", length);
273 printf("%s | ", buf);
274 while (length-- > 0) {
275 printf("%02X ", *address++);
276 if (!(++i % line_size) || (length == 0 && i % line_size)) {
278 while (i++ % line_size)
281 printf(" | "); /* right close */
282 while (line < address) {
284 printf("%c", (c < 33 || c == 255) ? 0x2E : c);
288 printf("%s | ", buf);
294 static size_t gen_eth_frame(struct xsk_umem_info *umem, u64 addr)
296 memcpy(xsk_umem__get_data(umem->buffer, addr), pkt_data,
297 sizeof(pkt_data) - 1);
298 return sizeof(pkt_data) - 1;
301 static struct xsk_umem_info *xsk_configure_umem(void *buffer, u64 size)
303 struct xsk_umem_info *umem;
304 struct xsk_umem_config cfg = {
305 .fill_size = XSK_RING_PROD__DEFAULT_NUM_DESCS,
306 .comp_size = XSK_RING_CONS__DEFAULT_NUM_DESCS,
307 .frame_size = opt_xsk_frame_size,
308 .frame_headroom = XSK_UMEM__DEFAULT_FRAME_HEADROOM,
309 .flags = opt_umem_flags
313 umem = calloc(1, sizeof(*umem));
315 exit_with_error(errno);
317 ret = xsk_umem__create(&umem->umem, buffer, size, &umem->fq, &umem->cq,
320 exit_with_error(-ret);
322 umem->buffer = buffer;
326 static void xsk_populate_fill_ring(struct xsk_umem_info *umem)
331 ret = xsk_ring_prod__reserve(&umem->fq,
332 XSK_RING_PROD__DEFAULT_NUM_DESCS, &idx);
333 if (ret != XSK_RING_PROD__DEFAULT_NUM_DESCS)
334 exit_with_error(-ret);
335 for (i = 0; i < XSK_RING_PROD__DEFAULT_NUM_DESCS; i++)
336 *xsk_ring_prod__fill_addr(&umem->fq, idx++) =
337 i * opt_xsk_frame_size;
338 xsk_ring_prod__submit(&umem->fq, XSK_RING_PROD__DEFAULT_NUM_DESCS);
341 static struct xsk_socket_info *xsk_configure_socket(struct xsk_umem_info *umem,
344 struct xsk_socket_config cfg;
345 struct xsk_socket_info *xsk;
346 struct xsk_ring_cons *rxr;
347 struct xsk_ring_prod *txr;
350 xsk = calloc(1, sizeof(*xsk));
352 exit_with_error(errno);
355 cfg.rx_size = XSK_RING_CONS__DEFAULT_NUM_DESCS;
356 cfg.tx_size = XSK_RING_PROD__DEFAULT_NUM_DESCS;
357 if (opt_num_xsks > 1)
358 cfg.libbpf_flags = XSK_LIBBPF_FLAGS__INHIBIT_PROG_LOAD;
360 cfg.libbpf_flags = 0;
361 cfg.xdp_flags = opt_xdp_flags;
362 cfg.bind_flags = opt_xdp_bind_flags;
364 rxr = rx ? &xsk->rx : NULL;
365 txr = tx ? &xsk->tx : NULL;
366 ret = xsk_socket__create(&xsk->xsk, opt_if, opt_queue, umem->umem,
369 exit_with_error(-ret);
371 ret = bpf_get_link_xdp_id(opt_ifindex, &prog_id, opt_xdp_flags);
373 exit_with_error(-ret);
378 static struct option long_options[] = {
379 {"rxdrop", no_argument, 0, 'r'},
380 {"txonly", no_argument, 0, 't'},
381 {"l2fwd", no_argument, 0, 'l'},
382 {"interface", required_argument, 0, 'i'},
383 {"queue", required_argument, 0, 'q'},
384 {"poll", no_argument, 0, 'p'},
385 {"xdp-skb", no_argument, 0, 'S'},
386 {"xdp-native", no_argument, 0, 'N'},
387 {"interval", required_argument, 0, 'n'},
388 {"zero-copy", no_argument, 0, 'z'},
389 {"copy", no_argument, 0, 'c'},
390 {"frame-size", required_argument, 0, 'f'},
391 {"no-need-wakeup", no_argument, 0, 'm'},
392 {"unaligned", no_argument, 0, 'u'},
393 {"shared-umem", no_argument, 0, 'M'},
394 {"force", no_argument, 0, 'F'},
395 {"duration", required_argument, 0, 'd'},
399 static void usage(const char *prog)
402 " Usage: %s [OPTIONS]\n"
404 " -r, --rxdrop Discard all incoming packets (default)\n"
405 " -t, --txonly Only send packets\n"
406 " -l, --l2fwd MAC swap L2 forwarding\n"
407 " -i, --interface=n Run on interface n\n"
408 " -q, --queue=n Use queue n (default 0)\n"
409 " -p, --poll Use poll syscall\n"
410 " -S, --xdp-skb=n Use XDP skb-mod\n"
411 " -N, --xdp-native=n Enforce XDP native mode\n"
412 " -n, --interval=n Specify statistics update interval (default 1 sec).\n"
413 " -z, --zero-copy Force zero-copy mode.\n"
414 " -c, --copy Force copy mode.\n"
415 " -m, --no-need-wakeup Turn off use of driver need wakeup flag.\n"
416 " -f, --frame-size=n Set the frame size (must be a power of two in aligned mode, default is %d).\n"
417 " -u, --unaligned Enable unaligned chunk placement\n"
418 " -M, --shared-umem Enable XDP_SHARED_UMEM\n"
419 " -F, --force Force loading the XDP prog\n"
420 " -d, --duration=n Duration in secs to run command.\n"
421 " Default: forever.\n"
423 fprintf(stderr, str, prog, XSK_UMEM__DEFAULT_FRAME_SIZE);
427 static void parse_command_line(int argc, char **argv)
434 c = getopt_long(argc, argv, "Frtli:q:psSNn:czf:muMd:",
435 long_options, &option_index);
441 opt_bench = BENCH_RXDROP;
444 opt_bench = BENCH_TXONLY;
447 opt_bench = BENCH_L2FWD;
453 opt_queue = atoi(optarg);
459 opt_xdp_flags |= XDP_FLAGS_SKB_MODE;
460 opt_xdp_bind_flags |= XDP_COPY;
463 /* default, set below */
466 opt_interval = atoi(optarg);
469 opt_xdp_bind_flags |= XDP_ZEROCOPY;
472 opt_xdp_bind_flags |= XDP_COPY;
475 opt_umem_flags |= XDP_UMEM_UNALIGNED_CHUNK_FLAG;
476 opt_unaligned_chunks = 1;
477 opt_mmap_flags = MAP_HUGETLB;
480 opt_xdp_flags &= ~XDP_FLAGS_UPDATE_IF_NOEXIST;
483 opt_xsk_frame_size = atoi(optarg);
486 opt_need_wakeup = false;
487 opt_xdp_bind_flags &= ~XDP_USE_NEED_WAKEUP;
490 opt_num_xsks = MAX_SOCKS;
493 opt_duration = atoi(optarg);
494 opt_duration *= 1000000000;
497 usage(basename(argv[0]));
501 if (!(opt_xdp_flags & XDP_FLAGS_SKB_MODE))
502 opt_xdp_flags |= XDP_FLAGS_DRV_MODE;
504 opt_ifindex = if_nametoindex(opt_if);
506 fprintf(stderr, "ERROR: interface \"%s\" does not exist\n",
508 usage(basename(argv[0]));
511 if ((opt_xsk_frame_size & (opt_xsk_frame_size - 1)) &&
512 !opt_unaligned_chunks) {
513 fprintf(stderr, "--frame-size=%d is not a power of two\n",
515 usage(basename(argv[0]));
519 static void kick_tx(struct xsk_socket_info *xsk)
523 ret = sendto(xsk_socket__fd(xsk->xsk), NULL, 0, MSG_DONTWAIT, NULL, 0);
524 if (ret >= 0 || errno == ENOBUFS || errno == EAGAIN || errno == EBUSY)
526 exit_with_error(errno);
529 static inline void complete_tx_l2fwd(struct xsk_socket_info *xsk,
532 struct xsk_umem_info *umem = xsk->umem;
533 u32 idx_cq = 0, idx_fq = 0;
537 if (!xsk->outstanding_tx)
540 if (!opt_need_wakeup || xsk_ring_prod__needs_wakeup(&xsk->tx))
543 ndescs = (xsk->outstanding_tx > BATCH_SIZE) ? BATCH_SIZE :
546 /* re-add completed Tx buffers */
547 rcvd = xsk_ring_cons__peek(&umem->cq, ndescs, &idx_cq);
552 ret = xsk_ring_prod__reserve(&umem->fq, rcvd, &idx_fq);
553 while (ret != rcvd) {
555 exit_with_error(-ret);
556 if (xsk_ring_prod__needs_wakeup(&umem->fq))
557 ret = poll(fds, num_socks, opt_timeout);
558 ret = xsk_ring_prod__reserve(&umem->fq, rcvd, &idx_fq);
561 for (i = 0; i < rcvd; i++)
562 *xsk_ring_prod__fill_addr(&umem->fq, idx_fq++) =
563 *xsk_ring_cons__comp_addr(&umem->cq, idx_cq++);
565 xsk_ring_prod__submit(&xsk->umem->fq, rcvd);
566 xsk_ring_cons__release(&xsk->umem->cq, rcvd);
567 xsk->outstanding_tx -= rcvd;
568 xsk->tx_npkts += rcvd;
572 static inline void complete_tx_only(struct xsk_socket_info *xsk)
577 if (!xsk->outstanding_tx)
580 if (!opt_need_wakeup || xsk_ring_prod__needs_wakeup(&xsk->tx))
583 rcvd = xsk_ring_cons__peek(&xsk->umem->cq, BATCH_SIZE, &idx);
585 xsk_ring_cons__release(&xsk->umem->cq, rcvd);
586 xsk->outstanding_tx -= rcvd;
587 xsk->tx_npkts += rcvd;
591 static void rx_drop(struct xsk_socket_info *xsk, struct pollfd *fds)
593 unsigned int rcvd, i;
594 u32 idx_rx = 0, idx_fq = 0;
597 rcvd = xsk_ring_cons__peek(&xsk->rx, BATCH_SIZE, &idx_rx);
599 if (xsk_ring_prod__needs_wakeup(&xsk->umem->fq))
600 ret = poll(fds, num_socks, opt_timeout);
604 ret = xsk_ring_prod__reserve(&xsk->umem->fq, rcvd, &idx_fq);
605 while (ret != rcvd) {
607 exit_with_error(-ret);
608 if (xsk_ring_prod__needs_wakeup(&xsk->umem->fq))
609 ret = poll(fds, num_socks, opt_timeout);
610 ret = xsk_ring_prod__reserve(&xsk->umem->fq, rcvd, &idx_fq);
613 for (i = 0; i < rcvd; i++) {
614 u64 addr = xsk_ring_cons__rx_desc(&xsk->rx, idx_rx)->addr;
615 u32 len = xsk_ring_cons__rx_desc(&xsk->rx, idx_rx++)->len;
616 u64 orig = xsk_umem__extract_addr(addr);
618 addr = xsk_umem__add_offset_to_addr(addr);
619 char *pkt = xsk_umem__get_data(xsk->umem->buffer, addr);
621 hex_dump(pkt, len, addr);
622 *xsk_ring_prod__fill_addr(&xsk->umem->fq, idx_fq++) = orig;
625 xsk_ring_prod__submit(&xsk->umem->fq, rcvd);
626 xsk_ring_cons__release(&xsk->rx, rcvd);
627 xsk->rx_npkts += rcvd;
630 static void rx_drop_all(void)
632 struct pollfd fds[MAX_SOCKS] = {};
635 for (i = 0; i < num_socks; i++) {
636 fds[i].fd = xsk_socket__fd(xsks[i]->xsk);
637 fds[i].events = POLLIN;
642 ret = poll(fds, num_socks, opt_timeout);
647 for (i = 0; i < num_socks; i++)
648 rx_drop(xsks[i], fds);
655 static void tx_only(struct xsk_socket_info *xsk, u32 frame_nb)
659 if (xsk_ring_prod__reserve(&xsk->tx, BATCH_SIZE, &idx) == BATCH_SIZE) {
662 for (i = 0; i < BATCH_SIZE; i++) {
663 xsk_ring_prod__tx_desc(&xsk->tx, idx + i)->addr =
664 (frame_nb + i) << XSK_UMEM__DEFAULT_FRAME_SHIFT;
665 xsk_ring_prod__tx_desc(&xsk->tx, idx + i)->len =
666 sizeof(pkt_data) - 1;
669 xsk_ring_prod__submit(&xsk->tx, BATCH_SIZE);
670 xsk->outstanding_tx += BATCH_SIZE;
671 frame_nb += BATCH_SIZE;
672 frame_nb %= NUM_FRAMES;
675 complete_tx_only(xsk);
678 static void tx_only_all(void)
680 struct pollfd fds[MAX_SOCKS] = {};
681 u32 frame_nb[MAX_SOCKS] = {};
684 for (i = 0; i < num_socks; i++) {
685 fds[0].fd = xsk_socket__fd(xsks[i]->xsk);
686 fds[0].events = POLLOUT;
691 ret = poll(fds, num_socks, opt_timeout);
695 if (!(fds[0].revents & POLLOUT))
699 for (i = 0; i < num_socks; i++)
700 tx_only(xsks[i], frame_nb[i]);
707 static void l2fwd(struct xsk_socket_info *xsk, struct pollfd *fds)
709 unsigned int rcvd, i;
710 u32 idx_rx = 0, idx_tx = 0;
713 complete_tx_l2fwd(xsk, fds);
715 rcvd = xsk_ring_cons__peek(&xsk->rx, BATCH_SIZE, &idx_rx);
717 if (xsk_ring_prod__needs_wakeup(&xsk->umem->fq))
718 ret = poll(fds, num_socks, opt_timeout);
722 ret = xsk_ring_prod__reserve(&xsk->tx, rcvd, &idx_tx);
723 while (ret != rcvd) {
725 exit_with_error(-ret);
726 if (xsk_ring_prod__needs_wakeup(&xsk->tx))
728 ret = xsk_ring_prod__reserve(&xsk->tx, rcvd, &idx_tx);
731 for (i = 0; i < rcvd; i++) {
732 u64 addr = xsk_ring_cons__rx_desc(&xsk->rx, idx_rx)->addr;
733 u32 len = xsk_ring_cons__rx_desc(&xsk->rx, idx_rx++)->len;
736 addr = xsk_umem__add_offset_to_addr(addr);
737 char *pkt = xsk_umem__get_data(xsk->umem->buffer, addr);
739 swap_mac_addresses(pkt);
741 hex_dump(pkt, len, addr);
742 xsk_ring_prod__tx_desc(&xsk->tx, idx_tx)->addr = orig;
743 xsk_ring_prod__tx_desc(&xsk->tx, idx_tx++)->len = len;
746 xsk_ring_prod__submit(&xsk->tx, rcvd);
747 xsk_ring_cons__release(&xsk->rx, rcvd);
749 xsk->rx_npkts += rcvd;
750 xsk->outstanding_tx += rcvd;
753 static void l2fwd_all(void)
755 struct pollfd fds[MAX_SOCKS] = {};
758 for (i = 0; i < num_socks; i++) {
759 fds[i].fd = xsk_socket__fd(xsks[i]->xsk);
760 fds[i].events = POLLOUT | POLLIN;
765 ret = poll(fds, num_socks, opt_timeout);
770 for (i = 0; i < num_socks; i++)
778 static void load_xdp_program(char **argv, struct bpf_object **obj)
780 struct bpf_prog_load_attr prog_load_attr = {
781 .prog_type = BPF_PROG_TYPE_XDP,
783 char xdp_filename[256];
786 snprintf(xdp_filename, sizeof(xdp_filename), "%s_kern.o", argv[0]);
787 prog_load_attr.file = xdp_filename;
789 if (bpf_prog_load_xattr(&prog_load_attr, obj, &prog_fd))
792 fprintf(stderr, "ERROR: no program found: %s\n",
797 if (bpf_set_link_xdp_fd(opt_ifindex, prog_fd, opt_xdp_flags) < 0) {
798 fprintf(stderr, "ERROR: link set xdp fd failed\n");
803 static void enter_xsks_into_map(struct bpf_object *obj)
808 map = bpf_object__find_map_by_name(obj, "xsks_map");
809 xsks_map = bpf_map__fd(map);
811 fprintf(stderr, "ERROR: no xsks map found: %s\n",
816 for (i = 0; i < num_socks; i++) {
817 int fd = xsk_socket__fd(xsks[i]->xsk);
821 ret = bpf_map_update_elem(xsks_map, &key, &fd, 0);
823 fprintf(stderr, "ERROR: bpf_map_update_elem %d\n", i);
829 int main(int argc, char **argv)
831 struct rlimit r = {RLIM_INFINITY, RLIM_INFINITY};
832 bool rx = false, tx = false;
833 struct xsk_umem_info *umem;
834 struct bpf_object *obj;
839 parse_command_line(argc, argv);
841 if (setrlimit(RLIMIT_MEMLOCK, &r)) {
842 fprintf(stderr, "ERROR: setrlimit(RLIMIT_MEMLOCK) \"%s\"\n",
847 if (opt_num_xsks > 1)
848 load_xdp_program(argv, &obj);
850 /* Reserve memory for the umem. Use hugepages if unaligned chunk mode */
851 bufs = mmap(NULL, NUM_FRAMES * opt_xsk_frame_size,
852 PROT_READ | PROT_WRITE,
853 MAP_PRIVATE | MAP_ANONYMOUS | opt_mmap_flags, -1, 0);
854 if (bufs == MAP_FAILED) {
855 printf("ERROR: mmap failed\n");
859 /* Create sockets... */
860 umem = xsk_configure_umem(bufs, NUM_FRAMES * opt_xsk_frame_size);
861 if (opt_bench == BENCH_RXDROP || opt_bench == BENCH_L2FWD) {
863 xsk_populate_fill_ring(umem);
865 if (opt_bench == BENCH_L2FWD || opt_bench == BENCH_TXONLY)
867 for (i = 0; i < opt_num_xsks; i++)
868 xsks[num_socks++] = xsk_configure_socket(umem, rx, tx);
870 if (opt_bench == BENCH_TXONLY)
871 for (i = 0; i < NUM_FRAMES; i++)
872 gen_eth_frame(umem, i * opt_xsk_frame_size);
874 if (opt_num_xsks > 1 && opt_bench != BENCH_TXONLY)
875 enter_xsks_into_map(obj);
877 signal(SIGINT, int_exit);
878 signal(SIGTERM, int_exit);
879 signal(SIGABRT, int_exit);
881 setlocale(LC_ALL, "");
883 ret = pthread_create(&pt, NULL, poller, NULL);
885 exit_with_error(ret);
887 prev_time = get_nsecs();
888 start_time = prev_time;
890 if (opt_bench == BENCH_RXDROP)
892 else if (opt_bench == BENCH_TXONLY)
897 pthread_join(pt, NULL);