2 * Copyright (c) 2005 Topspin Communications. All rights reserved.
4 * This software is available to you under a choice of one of two
5 * licenses. You may choose to be licensed under the terms of the GNU
6 * General Public License (GPL) Version 2, available from the file
7 * COPYING in the main directory of this source tree, or the
8 * OpenIB.org BSD license below:
10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
18 * - Redistributions in binary form must reproduce the above
19 * copyright notice, this list of conditions and the following
20 * disclaimer in the documentation and/or other materials
21 * provided with the distribution.
23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
39 #include <sys/types.h>
40 #include <sys/socket.h>
45 #include <arpa/inet.h>
51 PINGPONG_RECV_WRID = 1,
52 PINGPONG_SEND_WRID = 2,
57 struct pingpong_context {
58 struct ibv_context *context;
59 struct ibv_comp_channel *channel;
69 struct ibv_port_attr portinfo;
72 struct pingpong_dest {
79 static int pp_connect_ctx(struct pingpong_context *ctx, int port, int my_psn,
80 enum ibv_mtu mtu, int sl,
81 struct pingpong_dest *dest, int sgid_idx)
83 struct ibv_qp_attr attr = {
84 .qp_state = IBV_QPS_RTR,
86 .dest_qp_num = dest->qpn,
97 if (dest->gid.global.interface_id) {
98 attr.ah_attr.is_global = 1;
99 attr.ah_attr.grh.hop_limit = 1;
100 attr.ah_attr.grh.dgid = dest->gid;
101 attr.ah_attr.grh.sgid_index = sgid_idx;
103 if (ibv_modify_qp(ctx->qp, &attr,
109 fprintf(stderr, "Failed to modify QP to RTR\n");
113 attr.qp_state = IBV_QPS_RTS;
114 attr.sq_psn = my_psn;
115 if (ibv_modify_qp(ctx->qp, &attr,
118 fprintf(stderr, "Failed to modify QP to RTS\n");
125 static struct pingpong_dest *pp_client_exch_dest(const char *servername, int port,
126 const struct pingpong_dest *my_dest)
128 struct addrinfo *res, *t;
129 struct addrinfo hints = {
130 .ai_family = AF_UNSPEC,
131 .ai_socktype = SOCK_STREAM
134 char msg[sizeof "0000:000000:000000:00000000000000000000000000000000"];
137 struct pingpong_dest *rem_dest = NULL;
140 if (asprintf(&service, "%d", port) < 0)
143 n = getaddrinfo(servername, service, &hints, &res);
146 fprintf(stderr, "%s for %s:%d\n", gai_strerror(n), servername, port);
151 for (t = res; t; t = t->ai_next) {
152 sockfd = socket(t->ai_family, t->ai_socktype, t->ai_protocol);
154 if (!connect(sockfd, t->ai_addr, t->ai_addrlen))
161 freeaddrinfo_null(res);
165 fprintf(stderr, "Couldn't connect to %s:%d\n", servername, port);
169 gid_to_wire_gid(&my_dest->gid, gid);
170 sprintf(msg, "%04x:%06x:%06x:%s", my_dest->lid, my_dest->qpn,
172 if (write(sockfd, msg, sizeof msg) != sizeof msg) {
173 fprintf(stderr, "Couldn't send local address\n");
177 if (read(sockfd, msg, sizeof msg) != sizeof msg ||
178 write(sockfd, "done", sizeof "done") != sizeof "done") {
179 perror("client read/write");
180 fprintf(stderr, "Couldn't read/write remote address\n");
185 rem_dest = malloc(sizeof *rem_dest);
189 sscanf(msg, "%x:%x:%x:%s", &rem_dest->lid, &rem_dest->qpn,
190 &rem_dest->psn, gid);
191 wire_gid_to_gid(gid, &rem_dest->gid);
198 static struct pingpong_dest *pp_server_exch_dest(struct pingpong_context *ctx,
199 int ib_port, enum ibv_mtu mtu,
201 const struct pingpong_dest *my_dest,
204 struct addrinfo *res, *t;
205 struct addrinfo hints = {
206 .ai_flags = AI_PASSIVE,
207 .ai_family = AF_INET,
208 .ai_socktype = SOCK_STREAM
211 char msg[sizeof "0000:000000:000000:00000000000000000000000000000000"];
213 int sockfd = -1, connfd;
214 struct pingpong_dest *rem_dest = NULL;
217 if (asprintf(&service, "%d", port) < 0)
220 n = getaddrinfo(NULL, service, &hints, &res);
223 fprintf(stderr, "%s for port %d\n", gai_strerror(n), port);
228 for (t = res; t; t = t->ai_next) {
229 sockfd = socket(t->ai_family, t->ai_socktype, t->ai_protocol);
233 setsockopt(sockfd, SOL_SOCKET, SO_REUSEADDR, &n, sizeof n);
235 if (!bind(sockfd, t->ai_addr, t->ai_addrlen))
242 freeaddrinfo_null(res);
246 fprintf(stderr, "Couldn't listen to port %d\n", port);
250 if (listen(sockfd, 1) < 0) {
251 perror("listen() failed");
255 connfd = accept(sockfd, NULL, NULL);
258 fprintf(stderr, "accept() failed\n");
262 n = read(connfd, msg, sizeof msg);
263 if (n != sizeof msg) {
264 perror("server read");
265 fprintf(stderr, "%d/%d: Couldn't read remote address\n", n, (int) sizeof msg);
269 rem_dest = malloc(sizeof *rem_dest);
273 sscanf(msg, "%x:%x:%x:%s", &rem_dest->lid, &rem_dest->qpn,
274 &rem_dest->psn, gid);
275 wire_gid_to_gid(gid, &rem_dest->gid);
277 if (pp_connect_ctx(ctx, ib_port, my_dest->psn, mtu, sl, rem_dest,
279 fprintf(stderr, "Couldn't connect to remote QP\n");
286 gid_to_wire_gid(&my_dest->gid, gid);
287 sprintf(msg, "%04x:%06x:%06x:%s", my_dest->lid, my_dest->qpn,
289 if (write(connfd, msg, sizeof msg) != sizeof msg ||
290 read(connfd, msg, sizeof msg) != sizeof "done") {
291 fprintf(stderr, "Couldn't send/recv local address\n");
302 static struct pingpong_context *pp_init_ctx(struct ibv_device *ib_dev, int size,
303 int rx_depth, int port,
306 struct pingpong_context *ctx;
308 ctx = calloc(1, sizeof *ctx);
313 ctx->send_flags = IBV_SEND_SIGNALED;
314 ctx->rx_depth = rx_depth;
316 ctx->buf = memalign(page_size, size);
318 fprintf(stderr, "Couldn't allocate work buf.\n");
322 /* FIXME memset(ctx->buf, 0, size); */
323 memset(ctx->buf, 0x7b, size);
325 ctx->context = ibv_open_device(ib_dev);
327 fprintf(stderr, "Couldn't get context for %s\n",
328 ibv_get_device_name(ib_dev));
333 ctx->channel = ibv_create_comp_channel(ctx->context);
335 fprintf(stderr, "Couldn't create completion channel\n");
341 ctx->pd = ibv_alloc_pd(ctx->context);
343 fprintf(stderr, "Couldn't allocate PD\n");
344 goto clean_comp_channel;
347 ctx->mr = ibv_reg_mr(ctx->pd, ctx->buf, size, IBV_ACCESS_LOCAL_WRITE);
349 fprintf(stderr, "Couldn't register MR\n");
353 ctx->cq = ibv_create_cq(ctx->context, rx_depth + 1, NULL,
356 fprintf(stderr, "Couldn't create CQ\n");
361 struct ibv_qp_attr attr;
362 struct ibv_qp_init_attr init_attr = {
367 .max_recv_wr = rx_depth,
371 .qp_type = IBV_QPT_UC
374 ctx->qp = ibv_create_qp(ctx->pd, &init_attr);
376 fprintf(stderr, "Couldn't create QP\n");
379 ibv_query_qp(ctx->qp, &attr, IBV_QP_CAP, &init_attr);
380 if (init_attr.cap.max_inline_data >= size) {
381 ctx->send_flags |= IBV_SEND_INLINE;
386 struct ibv_qp_attr attr = {
387 .qp_state = IBV_QPS_INIT,
393 if (ibv_modify_qp(ctx->qp, &attr,
397 IBV_QP_ACCESS_FLAGS)) {
398 fprintf(stderr, "Failed to modify QP to INIT\n");
406 ibv_destroy_qp(ctx->qp);
409 ibv_destroy_cq(ctx->cq);
412 ibv_dereg_mr(ctx->mr);
415 ibv_dealloc_pd(ctx->pd);
419 ibv_destroy_comp_channel(ctx->channel);
422 ibv_close_device(ctx->context);
433 static int pp_close_ctx(struct pingpong_context *ctx)
435 if (ibv_destroy_qp(ctx->qp)) {
436 fprintf(stderr, "Couldn't destroy QP\n");
440 if (ibv_destroy_cq(ctx->cq)) {
441 fprintf(stderr, "Couldn't destroy CQ\n");
445 if (ibv_dereg_mr(ctx->mr)) {
446 fprintf(stderr, "Couldn't deregister MR\n");
450 if (ibv_dealloc_pd(ctx->pd)) {
451 fprintf(stderr, "Couldn't deallocate PD\n");
456 if (ibv_destroy_comp_channel(ctx->channel)) {
457 fprintf(stderr, "Couldn't destroy completion channel\n");
462 if (ibv_close_device(ctx->context)) {
463 fprintf(stderr, "Couldn't release context\n");
473 static int pp_post_recv(struct pingpong_context *ctx, int n)
475 struct ibv_sge list = {
476 .addr = (uintptr_t) ctx->buf,
478 .lkey = ctx->mr->lkey
480 struct ibv_recv_wr wr = {
481 .wr_id = PINGPONG_RECV_WRID,
485 struct ibv_recv_wr *bad_wr;
488 for (i = 0; i < n; ++i)
489 if (ibv_post_recv(ctx->qp, &wr, &bad_wr))
495 static int pp_post_send(struct pingpong_context *ctx)
497 struct ibv_sge list = {
498 .addr = (uintptr_t) ctx->buf,
500 .lkey = ctx->mr->lkey
502 struct ibv_send_wr wr = {
503 .wr_id = PINGPONG_SEND_WRID,
506 .opcode = IBV_WR_SEND,
507 .send_flags = ctx->send_flags,
509 struct ibv_send_wr *bad_wr;
511 return ibv_post_send(ctx->qp, &wr, &bad_wr);
514 static void usage(const char *argv0)
517 printf(" %s start a server and wait for connection\n", argv0);
518 printf(" %s <host> connect to server at <host>\n", argv0);
520 printf("Options:\n");
521 printf(" -p, --port=<port> listen on/connect to port <port> (default 18515)\n");
522 printf(" -d, --ib-dev=<dev> use IB device <dev> (default first device found)\n");
523 printf(" -i, --ib-port=<port> use port <port> of IB device (default 1)\n");
524 printf(" -s, --size=<size> size of message to exchange (default 4096)\n");
525 printf(" -m, --mtu=<size> path MTU (default 1024)\n");
526 printf(" -r, --rx-depth=<dep> number of receives to post at a time (default 500)\n");
527 printf(" -n, --iters=<iters> number of exchanges (default 1000)\n");
528 printf(" -l, --sl=<sl> service level value\n");
529 printf(" -e, --events sleep on CQ events (default poll)\n");
530 printf(" -g, --gid-idx=<gid index> local port gid index\n");
533 int main(int argc, char *argv[])
535 struct ibv_device **dev_list;
536 struct ibv_device *ib_dev;
537 struct pingpong_context *ctx;
538 struct pingpong_dest my_dest;
539 struct pingpong_dest *rem_dest;
540 struct timeval start, end;
541 char *ib_devname = NULL;
542 char *servername = NULL;
543 unsigned int port = 18515;
545 unsigned int size = 4096;
546 enum ibv_mtu mtu = IBV_MTU_1024;
547 unsigned int rx_depth = 500;
548 unsigned int iters = 1000;
552 int num_cq_events = 0;
557 srand48(getpid() * time(NULL));
562 static struct option long_options[] = {
563 { .name = "port", .has_arg = 1, .val = 'p' },
564 { .name = "ib-dev", .has_arg = 1, .val = 'd' },
565 { .name = "ib-port", .has_arg = 1, .val = 'i' },
566 { .name = "size", .has_arg = 1, .val = 's' },
567 { .name = "mtu", .has_arg = 1, .val = 'm' },
568 { .name = "rx-depth", .has_arg = 1, .val = 'r' },
569 { .name = "iters", .has_arg = 1, .val = 'n' },
570 { .name = "sl", .has_arg = 1, .val = 'l' },
571 { .name = "events", .has_arg = 0, .val = 'e' },
572 { .name = "gid-idx", .has_arg = 1, .val = 'g' },
576 c = getopt_long(argc, argv, "p:d:i:s:m:r:n:l:eg:",
583 port = strtoul(optarg, NULL, 0);
591 ib_devname = strdupa(optarg);
595 ib_port = strtol(optarg, NULL, 0);
603 size = strtoul(optarg, NULL, 0);
607 mtu = pp_mtu_to_enum(strtol(optarg, NULL, 0));
615 rx_depth = strtoul(optarg, NULL, 0);
619 iters = strtoul(optarg, NULL, 0);
623 sl = strtol(optarg, NULL, 0);
631 gidx = strtol(optarg, NULL, 0);
640 if (optind == argc - 1)
641 servername = strdupa(argv[optind]);
642 else if (optind < argc) {
647 page_size = sysconf(_SC_PAGESIZE);
649 dev_list = ibv_get_device_list(NULL);
651 perror("Failed to get IB devices list");
658 fprintf(stderr, "No IB devices found\n");
663 for (i = 0; dev_list[i]; ++i)
664 if (!strcmp(ibv_get_device_name(dev_list[i]), ib_devname))
666 ib_dev = dev_list[i];
668 fprintf(stderr, "IB device %s not found\n", ib_devname);
673 ctx = pp_init_ctx(ib_dev, size, rx_depth, ib_port, use_event);
677 routs = pp_post_recv(ctx, ctx->rx_depth);
678 if (routs < ctx->rx_depth) {
679 fprintf(stderr, "Couldn't post receive (%d)\n", routs);
684 if (ibv_req_notify_cq(ctx->cq, 0)) {
685 fprintf(stderr, "Couldn't request CQ notification\n");
690 if (pp_get_port_info(ctx->context, ib_port, &ctx->portinfo)) {
691 fprintf(stderr, "Couldn't get port info\n");
695 my_dest.lid = ctx->portinfo.lid;
696 if (ctx->portinfo.link_layer != IBV_LINK_LAYER_ETHERNET &&
698 fprintf(stderr, "Couldn't get local LID\n");
703 if (ibv_query_gid(ctx->context, ib_port, gidx, &my_dest.gid)) {
704 fprintf(stderr, "can't read sgid of index %d\n", gidx);
708 memset(&my_dest.gid, 0, sizeof my_dest.gid);
710 my_dest.qpn = ctx->qp->qp_num;
711 my_dest.psn = lrand48() & 0xffffff;
712 inet_ntop(AF_INET6, &my_dest.gid, gid, sizeof gid);
713 printf(" local address: LID 0x%04x, QPN 0x%06x, PSN 0x%06x, GID %s\n",
714 my_dest.lid, my_dest.qpn, my_dest.psn, gid);
718 rem_dest = pp_client_exch_dest(servername, port, &my_dest);
720 rem_dest = pp_server_exch_dest(ctx, ib_port, mtu, port, sl,
726 inet_ntop(AF_INET6, &rem_dest->gid, gid, sizeof gid);
727 printf(" remote address: LID 0x%04x, QPN 0x%06x, PSN 0x%06x, GID %s\n",
728 rem_dest->lid, rem_dest->qpn, rem_dest->psn, gid);
731 if (pp_connect_ctx(ctx, ib_port, my_dest.psn, mtu, sl, rem_dest,
735 ctx->pending = PINGPONG_RECV_WRID;
738 if (pp_post_send(ctx)) {
739 fprintf(stderr, "Couldn't post send\n");
742 ctx->pending |= PINGPONG_SEND_WRID;
745 if (gettimeofday(&start, NULL)) {
746 perror("gettimeofday");
751 while (rcnt < iters || scnt < iters) {
753 struct ibv_cq *ev_cq;
756 if (ibv_get_cq_event(ctx->channel, &ev_cq, &ev_ctx)) {
757 fprintf(stderr, "Failed to get cq_event\n");
763 if (ev_cq != ctx->cq) {
764 fprintf(stderr, "CQ event for unknown CQ %p\n", ev_cq);
768 if (ibv_req_notify_cq(ctx->cq, 0)) {
769 fprintf(stderr, "Couldn't request CQ notification\n");
779 ne = ibv_poll_cq(ctx->cq, 2, wc);
781 fprintf(stderr, "poll CQ failed %d\n", ne);
785 } while (!use_event && ne < 1);
787 for (i = 0; i < ne; ++i) {
788 if (wc[i].status != IBV_WC_SUCCESS) {
789 fprintf(stderr, "Failed status %s (%d) for wr_id %d\n",
790 ibv_wc_status_str(wc[i].status),
791 wc[i].status, (int) wc[i].wr_id);
795 switch ((int) wc[i].wr_id) {
796 case PINGPONG_SEND_WRID:
800 case PINGPONG_RECV_WRID:
802 routs += pp_post_recv(ctx, ctx->rx_depth - routs);
803 if (routs < ctx->rx_depth) {
805 "Couldn't post receive (%d)\n",
815 fprintf(stderr, "Completion for unknown wr_id %d\n",
820 ctx->pending &= ~(int) wc[i].wr_id;
821 if (scnt < iters && !ctx->pending) {
822 if (pp_post_send(ctx)) {
823 fprintf(stderr, "Couldn't post send\n");
826 ctx->pending = PINGPONG_RECV_WRID |
833 if (gettimeofday(&end, NULL)) {
834 perror("gettimeofday");
839 float usec = (end.tv_sec - start.tv_sec) * 1000000 +
840 (end.tv_usec - start.tv_usec);
841 long long bytes = (long long) size * iters * 2;
843 printf("%lld bytes in %.2f seconds = %.2f Mbit/sec\n",
844 bytes, usec / 1000000., bytes * 8. / usec);
845 printf("%d iters in %.2f seconds = %.2f usec/iter\n",
846 iters, usec / 1000000., usec / iters);
849 ibv_ack_cq_events(ctx->cq, num_cq_events);
851 if (pp_close_ctx(ctx))
854 ibv_free_device_list(dev_list);