1/* 2 * Copyright (c) 2005-2007 Intel Corporation. All rights reserved. 3 * 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: 9 * 10 * Redistribution and use in source and binary forms, with or 11 * without modification, are permitted provided that the following 12 * conditions are met: 13 * 14 * - Redistributions of source code must retain the above 15 * copyright notice, this list of conditions and the following 16 * disclaimer. 17 * 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. 22 * 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 30 * SOFTWARE. 31 * 32 * $Id$ 33 */ 34 35#include <stdlib.h> 36#include <string.h> 37#include <stdio.h> 38#include <errno.h> 39#include <sys/types.h> 40#include <arpa/inet.h> 41#include <sys/socket.h> 42#include <netdb.h> 43#include <unistd.h> 44#include <getopt.h> 45 46#include <rdma/rdma_cma.h> 47#include <infiniband/ib.h> 48 49struct cmatest_node { 50 int id; 51 struct rdma_cm_id *cma_id; 52 int connected; 53 struct ibv_pd *pd; 54 struct ibv_cq *cq; 55 struct ibv_mr *mr; 56 struct ibv_ah *ah; 57 uint32_t remote_qpn; 58 uint32_t remote_qkey; 59 void *mem; 60}; 61 62struct cmatest { 63 struct rdma_event_channel *channel; 64 pthread_t cmathread; 65 struct cmatest_node *nodes; 66 int conn_index; 67 int connects_left; 68 69 struct sockaddr_storage dst_in; 70 struct sockaddr *dst_addr; 71 struct sockaddr_storage src_in; 72 struct sockaddr *src_addr; 73}; 74 75static struct cmatest test; 76static int connections = 1; 77static int message_size = 100; 78static int message_count = 10; 79static int is_sender; 80static int unmapped_addr; 81static char *dst_addr; 82static char *src_addr; 83static enum rdma_port_space port_space = RDMA_PS_UDP; 84 85static int create_message(struct cmatest_node *node) 86{ 87 if (!message_size) 88 message_count = 0; 89 90 if (!message_count) 91 return 0; 92 93 node->mem = malloc(message_size + sizeof(struct ibv_grh)); 94 if (!node->mem) { 95 printf("failed message allocation\n"); 96 return -1; 97 } 98 node->mr = ibv_reg_mr(node->pd, node->mem, 99 message_size + sizeof(struct ibv_grh), 100 IBV_ACCESS_LOCAL_WRITE); 101 if (!node->mr) { 102 printf("failed to reg MR\n"); 103 goto err; 104 } 105 return 0; 106err: 107 free(node->mem); 108 return -1; 109} 110 111static int verify_test_params(struct cmatest_node *node) 112{ 113 struct ibv_port_attr port_attr; 114 int ret; 115 116 ret = ibv_query_port(node->cma_id->verbs, node->cma_id->port_num, 117 &port_attr); 118 if (ret) 119 return ret; 120 121 if (message_count && message_size > (1 << (port_attr.active_mtu + 7))) { 122 printf("mckey: message_size %d is larger than active mtu %d\n", 123 message_size, 1 << (port_attr.active_mtu + 7)); 124 return -EINVAL; 125 } 126 127 return 0; 128} 129 130static int init_node(struct cmatest_node *node) 131{ 132 struct ibv_qp_init_attr init_qp_attr; 133 int cqe, ret; 134 135 node->pd = ibv_alloc_pd(node->cma_id->verbs); 136 if (!node->pd) { 137 ret = -ENOMEM; 138 printf("mckey: unable to allocate PD\n"); 139 goto out; 140 } 141 142 cqe = message_count ? message_count * 2 : 2; 143 node->cq = ibv_create_cq(node->cma_id->verbs, cqe, node, NULL, 0); 144 if (!node->cq) { 145 ret = -ENOMEM; 146 printf("mckey: unable to create CQ\n"); 147 goto out; 148 } 149 150 memset(&init_qp_attr, 0, sizeof init_qp_attr); 151 init_qp_attr.cap.max_send_wr = message_count ? message_count : 1; 152 init_qp_attr.cap.max_recv_wr = message_count ? message_count : 1; 153 init_qp_attr.cap.max_send_sge = 1; 154 init_qp_attr.cap.max_recv_sge = 1; 155 init_qp_attr.qp_context = node; 156 init_qp_attr.sq_sig_all = 0; 157 init_qp_attr.qp_type = IBV_QPT_UD; 158 init_qp_attr.send_cq = node->cq; 159 init_qp_attr.recv_cq = node->cq; 160 ret = rdma_create_qp(node->cma_id, node->pd, &init_qp_attr); 161 if (ret) { 162 perror("mckey: unable to create QP"); 163 goto out; 164 } 165 166 ret = create_message(node); 167 if (ret) { 168 printf("mckey: failed to create messages: %d\n", ret); 169 goto out; 170 } 171out: 172 return ret; 173} 174 175static int post_recvs(struct cmatest_node *node) 176{ 177 struct ibv_recv_wr recv_wr, *recv_failure; 178 struct ibv_sge sge; 179 int i, ret = 0; 180 181 if (!message_count) 182 return 0; 183 184 recv_wr.next = NULL; 185 recv_wr.sg_list = &sge; 186 recv_wr.num_sge = 1; 187 recv_wr.wr_id = (uintptr_t) node; 188 189 sge.length = message_size + sizeof(struct ibv_grh); 190 sge.lkey = node->mr->lkey; 191 sge.addr = (uintptr_t) node->mem; 192 193 for (i = 0; i < message_count && !ret; i++ ) { 194 ret = ibv_post_recv(node->cma_id->qp, &recv_wr, &recv_failure); 195 if (ret) { 196 printf("failed to post receives: %d\n", ret); 197 break; 198 } 199 } 200 return ret; 201} 202 203static int post_sends(struct cmatest_node *node, int signal_flag) 204{ 205 struct ibv_send_wr send_wr, *bad_send_wr; 206 struct ibv_sge sge; 207 int i, ret = 0; 208 209 if (!node->connected || !message_count) 210 return 0; 211 212 send_wr.next = NULL; 213 send_wr.sg_list = &sge; 214 send_wr.num_sge = 1; 215 send_wr.opcode = IBV_WR_SEND_WITH_IMM; 216 send_wr.send_flags = signal_flag; 217 send_wr.wr_id = (unsigned long)node; 218 send_wr.imm_data = htobe32(node->cma_id->qp->qp_num); 219 220 send_wr.wr.ud.ah = node->ah; 221 send_wr.wr.ud.remote_qpn = node->remote_qpn; 222 send_wr.wr.ud.remote_qkey = node->remote_qkey; 223 224 sge.length = message_size; 225 sge.lkey = node->mr->lkey; 226 sge.addr = (uintptr_t) node->mem; 227 228 for (i = 0; i < message_count && !ret; i++) { 229 ret = ibv_post_send(node->cma_id->qp, &send_wr, &bad_send_wr); 230 if (ret) 231 printf("failed to post sends: %d\n", ret); 232 } 233 return ret; 234} 235 236static void connect_error(void) 237{ 238 test.connects_left--; 239} 240 241static int addr_handler(struct cmatest_node *node) 242{ 243 int ret; 244 245 ret = verify_test_params(node); 246 if (ret) 247 goto err; 248 249 ret = init_node(node); 250 if (ret) 251 goto err; 252 253 if (!is_sender) { 254 ret = post_recvs(node); 255 if (ret) 256 goto err; 257 } 258 259 ret = rdma_join_multicast(node->cma_id, test.dst_addr, node); 260 if (ret) { 261 perror("mckey: failure joining"); 262 goto err; 263 } 264 return 0; 265err: 266 connect_error(); 267 return ret; 268} 269 270static int join_handler(struct cmatest_node *node, 271 struct rdma_ud_param *param) 272{ 273 char buf[40]; 274 275 inet_ntop(AF_INET6, param->ah_attr.grh.dgid.raw, buf, 40); 276 printf("mckey: joined dgid: %s mlid 0x%x sl %d\n", buf, 277 param->ah_attr.dlid, param->ah_attr.sl); 278 279 node->remote_qpn = param->qp_num; 280 node->remote_qkey = param->qkey; 281 node->ah = ibv_create_ah(node->pd, ¶m->ah_attr); 282 if (!node->ah) { 283 printf("mckey: failure creating address handle\n"); 284 goto err; 285 } 286 287 node->connected = 1; 288 test.connects_left--; 289 return 0; 290err: 291 connect_error(); 292 return -1; 293} 294 295static int cma_handler(struct rdma_cm_id *cma_id, struct rdma_cm_event *event) 296{ 297 int ret = 0; 298 299 switch (event->event) { 300 case RDMA_CM_EVENT_ADDR_RESOLVED: 301 ret = addr_handler(cma_id->context); 302 break; 303 case RDMA_CM_EVENT_MULTICAST_JOIN: 304 ret = join_handler(cma_id->context, &event->param.ud); 305 break; 306 case RDMA_CM_EVENT_ADDR_ERROR: 307 case RDMA_CM_EVENT_ROUTE_ERROR: 308 case RDMA_CM_EVENT_MULTICAST_ERROR: 309 printf("mckey: event: %s, error: %d\n", 310 rdma_event_str(event->event), event->status); 311 connect_error(); 312 ret = event->status; 313 break; 314 case RDMA_CM_EVENT_DEVICE_REMOVAL: 315 /* Cleanup will occur after test completes. */ 316 break; 317 default: 318 break; 319 } 320 return ret; 321} 322 323static void *cma_thread(void *arg) 324{ 325 struct rdma_cm_event *event; 326 int ret; 327 328 while (1) { 329 ret = rdma_get_cm_event(test.channel, &event); 330 if (ret) { 331 perror("rdma_get_cm_event"); 332 break; 333 } 334 335 switch (event->event) { 336 case RDMA_CM_EVENT_MULTICAST_ERROR: 337 case RDMA_CM_EVENT_ADDR_CHANGE: 338 printf("mckey: event: %s, status: %d\n", 339 rdma_event_str(event->event), event->status); 340 break; 341 default: 342 break; 343 } 344 345 rdma_ack_cm_event(event); 346 } 347 return NULL; 348} 349 350static void destroy_node(struct cmatest_node *node) 351{ 352 if (!node->cma_id) 353 return; 354 355 if (node->ah) 356 ibv_destroy_ah(node->ah); 357 358 if (node->cma_id->qp) 359 rdma_destroy_qp(node->cma_id); 360 361 if (node->cq) 362 ibv_destroy_cq(node->cq); 363 364 if (node->mem) { 365 ibv_dereg_mr(node->mr); 366 free(node->mem); 367 } 368 369 if (node->pd) 370 ibv_dealloc_pd(node->pd); 371 372 /* Destroy the RDMA ID after all device resources */ 373 rdma_destroy_id(node->cma_id); 374} 375 376static int alloc_nodes(void) 377{ 378 int ret, i; 379 380 test.nodes = malloc(sizeof *test.nodes * connections); 381 if (!test.nodes) { 382 printf("mckey: unable to allocate memory for test nodes\n"); 383 return -ENOMEM; 384 } 385 memset(test.nodes, 0, sizeof *test.nodes * connections); 386 387 for (i = 0; i < connections; i++) { 388 test.nodes[i].id = i; 389 ret = rdma_create_id(test.channel, &test.nodes[i].cma_id, 390 &test.nodes[i], port_space); 391 if (ret) 392 goto err; 393 } 394 return 0; 395err: 396 while (--i >= 0) 397 rdma_destroy_id(test.nodes[i].cma_id); 398 free(test.nodes); 399 return ret; 400} 401 402static void destroy_nodes(void) 403{ 404 int i; 405 406 for (i = 0; i < connections; i++) 407 destroy_node(&test.nodes[i]); 408 free(test.nodes); 409} 410 411static int poll_cqs(void) 412{ 413 struct ibv_wc wc[8]; 414 int done, i, ret; 415 416 for (i = 0; i < connections; i++) { 417 if (!test.nodes[i].connected) 418 continue; 419 420 for (done = 0; done < message_count; done += ret) { 421 ret = ibv_poll_cq(test.nodes[i].cq, 8, wc); 422 if (ret < 0) { 423 printf("mckey: failed polling CQ: %d\n", ret); 424 return ret; 425 } 426 } 427 } 428 return 0; 429} 430 431static int connect_events(void) 432{ 433 struct rdma_cm_event *event; 434 int ret = 0; 435 436 while (test.connects_left && !ret) { 437 ret = rdma_get_cm_event(test.channel, &event); 438 if (!ret) { 439 ret = cma_handler(event->id, event); 440 rdma_ack_cm_event(event); 441 } 442 } 443 return ret; 444} 445 446static int get_addr(char *dst, struct sockaddr *addr) 447{ 448 struct addrinfo *res; 449 int ret; 450 451 ret = getaddrinfo(dst, NULL, NULL, &res); 452 if (ret) { 453 printf("getaddrinfo failed (%s) - invalid hostname or IP address\n", gai_strerror(ret)); 454 return ret; 455 } 456 457 memcpy(addr, res->ai_addr, res->ai_addrlen); 458 freeaddrinfo(res); 459 return ret; 460} 461 462static int get_dst_addr(char *dst, struct sockaddr *addr) 463{ 464 struct sockaddr_ib *sib; 465 466 if (!unmapped_addr) 467 return get_addr(dst, addr); 468 469 sib = (struct sockaddr_ib *) addr; 470 memset(sib, 0, sizeof *sib); 471 sib->sib_family = AF_IB; 472 inet_pton(AF_INET6, dst, &sib->sib_addr); 473 return 0; 474} 475 476static int run(void) 477{ 478 int i, ret, err; 479 480 printf("mckey: starting %s\n", is_sender ? "client" : "server"); 481 if (src_addr) { 482 ret = get_addr(src_addr, (struct sockaddr *) &test.src_in); 483 if (ret) 484 return ret; 485 } 486 487 ret = get_dst_addr(dst_addr, (struct sockaddr *) &test.dst_in); 488 if (ret) 489 return ret; 490 491 printf("mckey: joining\n"); 492 for (i = 0; i < connections; i++) { 493 if (src_addr) { 494 ret = rdma_bind_addr(test.nodes[i].cma_id, 495 test.src_addr); 496 if (ret) { 497 perror("mckey: addr bind failure"); 498 connect_error(); 499 return ret; 500 } 501 } 502 503 if (unmapped_addr) 504 ret = addr_handler(&test.nodes[i]); 505 else 506 ret = rdma_resolve_addr(test.nodes[i].cma_id, 507 test.src_addr, test.dst_addr, 508 2000); 509 if (ret) { 510 perror("mckey: resolve addr failure"); 511 connect_error(); 512 return ret; 513 } 514 } 515 516 ret = connect_events(); 517 if (ret) 518 goto out; 519 520 pthread_create(&test.cmathread, NULL, cma_thread, NULL); 521 522 /* 523 * Pause to give SM chance to configure switches. We don't want to 524 * handle reliability issue in this simple test program. 525 */ 526 sleep(3); 527 528 if (message_count) { 529 if (is_sender) { 530 printf("initiating data transfers\n"); 531 for (i = 0; i < connections; i++) { 532 ret = post_sends(&test.nodes[i], 0); 533 if (ret) 534 goto out; 535 } 536 } else { 537 printf("receiving data transfers\n"); 538 ret = poll_cqs(); 539 if (ret) 540 goto out; 541 } 542 printf("data transfers complete\n"); 543 } 544out: 545 for (i = 0; i < connections; i++) { 546 err = rdma_leave_multicast(test.nodes[i].cma_id, 547 test.dst_addr); 548 if (err) { 549 perror("mckey: failure leaving"); 550 ret = err; 551 } 552 } 553 return ret; 554} 555 556int main(int argc, char **argv) 557{ 558 int op, ret; 559 560 561 while ((op = getopt(argc, argv, "m:M:sb:c:C:S:p:")) != -1) { 562 switch (op) { 563 case 'm': 564 dst_addr = optarg; 565 break; 566 case 'M': 567 unmapped_addr = 1; 568 dst_addr = optarg; 569 break; 570 case 's': 571 is_sender = 1; 572 break; 573 case 'b': 574 src_addr = optarg; 575 test.src_addr = (struct sockaddr *) &test.src_in; 576 break; 577 case 'c': 578 connections = atoi(optarg); 579 break; 580 case 'C': 581 message_count = atoi(optarg); 582 break; 583 case 'S': 584 message_size = atoi(optarg); 585 break; 586 case 'p': 587 port_space = strtol(optarg, NULL, 0); 588 break; 589 default: 590 printf("usage: %s\n", argv[0]); 591 printf("\t-m multicast_address\n"); 592 printf("\t[-M unmapped_multicast_address]\n" 593 "\t replaces -m and requires -b\n"); 594 printf("\t[-s(ender)]\n"); 595 printf("\t[-b bind_address]\n"); 596 printf("\t[-c connections]\n"); 597 printf("\t[-C message_count]\n"); 598 printf("\t[-S message_size]\n"); 599 printf("\t[-p port_space - %#x for UDP (default), " 600 "%#x for IPOIB]\n", RDMA_PS_UDP, RDMA_PS_IPOIB); 601 exit(1); 602 } 603 } 604 605 if (unmapped_addr && !src_addr) { 606 printf("unmapped multicast address requires binding " 607 "to source address\n"); 608 exit(1); 609 } 610 611 test.dst_addr = (struct sockaddr *) &test.dst_in; 612 test.connects_left = connections; 613 614 test.channel = rdma_create_event_channel(); 615 if (!test.channel) { 616 perror("failed to create event channel"); 617 exit(1); 618 } 619 620 if (alloc_nodes()) 621 exit(1); 622 623 ret = run(); 624 625 printf("test complete\n"); 626 destroy_nodes(); 627 rdma_destroy_event_channel(test.channel); 628 629 printf("return status %d\n", ret); 630 return ret; 631} 632