2 * Copyright (c) 2005 Ammasso, Inc. All rights reserved.
3 * Copyright (c) 2006 Open Grid Computing, Inc. All rights reserved.
5 * This software is available to you under a choice of one of two
6 * licenses. You may choose to be licensed under the terms of the GNU
7 * General Public License (GPL) Version 2, available from the file
8 * COPYING in the main directory of this source tree, or the
9 * OpenIB.org BSD license below:
11 * Redistribution and use in source and binary forms, with or
12 * without modification, are permitted provided that the following
15 * - Redistributions of source code must retain the above
16 * copyright notice, this list of conditions and the following
19 * - Redistributions in binary form must reproduce the above
20 * copyright notice, this list of conditions and the following
21 * disclaimer in the documentation and/or other materials
22 * provided with the distribution.
24 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
25 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
26 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
27 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
28 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
29 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
30 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
34 #include <sys/cdefs.h>
35 __FBSDID("$FreeBSD$");
37 #include <sys/ctype.h>
39 #include <sys/param.h>
40 #include <sys/condvar.h>
41 #include <sys/systm.h>
42 #include <sys/kernel.h>
43 #include <sys/socket.h>
44 #include <sys/endian.h>
45 #include <sys/limits.h>
47 #include <sys/signalvar.h>
50 #include <sys/mutex.h>
51 #include <sys/rwlock.h>
52 #include <sys/queue.h>
53 #include <sys/taskqueue.h>
54 #include <sys/syslog.h>
55 #include <netinet/in.h>
60 #include <linux/types.h>
61 #include <rdma/rdma_cm.h>
66 #define PFX "krping: "
69 #define DEBUG_LOG if (debug) printf
71 static const struct krping_option krping_opts[] = {
72 {"count", OPT_INT, 'C'},
73 {"size", OPT_INT, 'S'},
74 {"addr", OPT_STRING, 'a'},
75 {"port", OPT_INT, 'p'},
76 {"verbose", OPT_NOPARAM, 'v'},
77 {"validate", OPT_NOPARAM, 'V'},
78 {"server", OPT_NOPARAM, 's'},
79 {"client", OPT_NOPARAM, 'c'},
80 {"dmamr", OPT_NOPARAM, 'D'},
81 {"debug", OPT_NOPARAM, 'd'},
82 {"wlat", OPT_NOPARAM, 'l'},
83 {"rlat", OPT_NOPARAM, 'L'},
84 {"bw", OPT_NOPARAM, 'B'},
85 {"tx-depth", OPT_INT, 't'},
86 {"poll", OPT_NOPARAM, 'P'},
87 {"memlimit", OPT_INT, 'm'},
91 struct mtx krping_mutex;
94 * List of running krping threads.
96 struct krping_cb_list krping_cbs;
99 * krping "ping/pong" loop:
100 * client sends source rkey/addr/len
101 * server receives source rkey/add/len
102 * server rdma reads "ping" data from source
103 * server sends "go ahead" on rdma read completion
104 * client sends sink rkey/addr/len
105 * server receives sink rkey/addr/len
106 * server rdma writes "pong" data to sink
107 * server sends "go ahead" on rdma write completion
112 * Default max buffer size for IO...
114 #define RPING_BUFSIZE 128*1024
115 #define RPING_SQ_DEPTH 32
117 static void krping_wait(struct krping_cb *cb, int state)
121 while (cb->state < state) {
122 rc = msleep(cb, &cb->lock, 0, "krping", 0);
123 if (rc && rc != ERESTART) {
128 mtx_unlock(&cb->lock);
131 static int krping_cma_event_handler(struct rdma_cm_id *cma_id,
132 struct rdma_cm_event *event)
135 struct krping_cb *cb = cma_id->context;
137 DEBUG_LOG(PFX "cma_event type %d cma_id %p (%s)\n", event->event, cma_id,
138 (cma_id == cb->cm_id) ? "parent" : "child");
141 switch (event->event) {
142 case RDMA_CM_EVENT_ADDR_RESOLVED:
143 cb->state = ADDR_RESOLVED;
144 ret = rdma_resolve_route(cma_id, 2000);
146 log(LOG_ERR, "rdma_resolve_route error %d\n",
152 case RDMA_CM_EVENT_ROUTE_RESOLVED:
153 cb->state = ROUTE_RESOLVED;
157 case RDMA_CM_EVENT_CONNECT_REQUEST:
158 cb->state = CONNECT_REQUEST;
159 cb->child_cm_id = cma_id;
160 DEBUG_LOG(PFX "child cma %p\n", cb->child_cm_id);
164 case RDMA_CM_EVENT_ESTABLISHED:
165 DEBUG_LOG(PFX "ESTABLISHED\n");
167 cb->state = CONNECTED;
172 case RDMA_CM_EVENT_ADDR_ERROR:
173 case RDMA_CM_EVENT_ROUTE_ERROR:
174 case RDMA_CM_EVENT_CONNECT_ERROR:
175 case RDMA_CM_EVENT_UNREACHABLE:
176 case RDMA_CM_EVENT_REJECTED:
177 log(LOG_ERR, "cma event %d, error %d\n", event->event,
183 case RDMA_CM_EVENT_DISCONNECTED:
184 DEBUG_LOG(PFX "DISCONNECT EVENT...\n");
189 case RDMA_CM_EVENT_DEVICE_REMOVAL:
190 DEBUG_LOG(PFX "cma detected device removal!!!!\n");
194 log(LOG_ERR, "oof bad type!\n");
198 mtx_unlock(&cb->lock);
202 static int server_recv(struct krping_cb *cb, struct ib_wc *wc)
204 if (wc->byte_len != sizeof(cb->recv_buf)) {
205 log(LOG_ERR, "Received bogus data, size %d\n",
210 cb->remote_rkey = ntohl(cb->recv_buf.rkey);
211 cb->remote_addr = ntohll(cb->recv_buf.buf);
212 cb->remote_len = ntohl(cb->recv_buf.size);
213 DEBUG_LOG(PFX "Received rkey %x addr %llx len %d from peer\n",
214 cb->remote_rkey, (unsigned long long)cb->remote_addr,
217 if (cb->state <= CONNECTED || cb->state == RDMA_WRITE_COMPLETE)
218 cb->state = RDMA_READ_ADV;
220 cb->state = RDMA_WRITE_ADV;
225 static int client_recv(struct krping_cb *cb, struct ib_wc *wc)
227 if (wc->byte_len != sizeof(cb->recv_buf)) {
228 log(LOG_ERR, "Received bogus data, size %d\n",
233 if (cb->state == RDMA_READ_ADV)
234 cb->state = RDMA_WRITE_ADV;
236 cb->state = RDMA_WRITE_COMPLETE;
241 static void krping_cq_event_handler(struct ib_cq *cq, void *ctx)
243 struct krping_cb *cb = ctx;
245 struct ib_recv_wr *bad_wr;
249 KASSERT(cb->cq == cq, ("bad condition"));
250 if (cb->state == ERROR) {
251 log(LOG_ERR, "cq completion in ERROR state\n");
252 mtx_unlock(&cb->lock);
255 if (!cb->wlat && !cb->rlat && !cb->bw)
256 ib_req_notify_cq(cb->cq, IB_CQ_NEXT_COMP);
257 while ((ret = ib_poll_cq(cb->cq, 1, &wc)) == 1) {
259 if (wc.status == IB_WC_WR_FLUSH_ERR) {
260 DEBUG_LOG("cq flushed\n");
263 log(LOG_CRIT, "cq completion failed status %d\n",
271 DEBUG_LOG(PFX "send completion\n");
272 cb->stats.send_bytes += cb->send_sgl.length;
273 cb->stats.send_msgs++;
276 case IB_WC_RDMA_WRITE:
277 DEBUG_LOG(PFX "rdma write completion\n");
278 cb->stats.write_bytes += cb->rdma_sq_wr.sg_list->length;
279 cb->stats.write_msgs++;
280 cb->state = RDMA_WRITE_COMPLETE;
284 case IB_WC_RDMA_READ:
285 DEBUG_LOG(PFX "rdma read completion\n");
286 cb->stats.read_bytes += cb->rdma_sq_wr.sg_list->length;
287 cb->stats.read_msgs++;
288 cb->state = RDMA_READ_COMPLETE;
293 DEBUG_LOG(PFX "recv completion\n");
294 cb->stats.recv_bytes += sizeof(cb->recv_buf);
295 cb->stats.recv_msgs++;
296 if (cb->wlat || cb->rlat || cb->bw)
297 ret = server_recv(cb, &wc);
299 ret = cb->server ? server_recv(cb, &wc) :
300 client_recv(cb, &wc);
302 log(LOG_ERR, "recv wc error: %d\n", ret);
306 ret = ib_post_recv(cb->qp, &cb->rq_wr, &bad_wr);
308 log(LOG_ERR, "post recv error: %d\n",
316 log(LOG_ERR, "unknown!!!!! completion\n");
321 log(LOG_ERR, "poll error %d\n", ret);
324 mtx_unlock(&cb->lock);
329 mtx_unlock(&cb->lock);
332 static int krping_accept(struct krping_cb *cb)
334 struct rdma_conn_param conn_param;
337 DEBUG_LOG(PFX "accepting client connection request\n");
339 memset(&conn_param, 0, sizeof conn_param);
340 conn_param.responder_resources = 1;
341 conn_param.initiator_depth = 1;
343 ret = rdma_accept(cb->child_cm_id, &conn_param);
345 log(LOG_ERR, "rdma_accept error: %d\n", ret);
349 if (!cb->wlat && !cb->rlat && !cb->bw) {
350 krping_wait(cb, CONNECTED);
351 if (cb->state == ERROR) {
352 log(LOG_ERR, "wait for CONNECTED state %d\n", cb->state);
359 static void krping_setup_wr(struct krping_cb *cb)
361 /* XXX X86 only here... not mapping for dma! */
362 cb->recv_sgl.addr = vtophys(&cb->recv_buf);
363 cb->recv_sgl.length = sizeof cb->recv_buf;
365 cb->recv_sgl.lkey = cb->dma_mr->lkey;
367 cb->recv_sgl.lkey = cb->recv_mr->lkey;
368 cb->rq_wr.sg_list = &cb->recv_sgl;
369 cb->rq_wr.num_sge = 1;
371 cb->send_sgl.addr = vtophys(&cb->send_buf);
372 cb->send_sgl.length = sizeof cb->send_buf;
374 cb->send_sgl.lkey = cb->dma_mr->lkey;
376 cb->send_sgl.lkey = cb->send_mr->lkey;
378 cb->sq_wr.opcode = IB_WR_SEND;
379 cb->sq_wr.send_flags = IB_SEND_SIGNALED;
380 cb->sq_wr.sg_list = &cb->send_sgl;
381 cb->sq_wr.num_sge = 1;
383 cb->rdma_addr = vtophys(cb->rdma_buf);
384 cb->rdma_sgl.addr = cb->rdma_addr;
386 cb->rdma_sgl.lkey = cb->dma_mr->lkey;
388 cb->rdma_sgl.lkey = cb->rdma_mr->lkey;
389 cb->rdma_sq_wr.send_flags = IB_SEND_SIGNALED;
390 cb->rdma_sq_wr.sg_list = &cb->rdma_sgl;
391 cb->rdma_sq_wr.num_sge = 1;
393 if (!cb->server || cb->wlat || cb->rlat || cb->bw) {
394 cb->start_addr = vtophys(cb->start_buf);
398 static int krping_setup_buffers(struct krping_cb *cb)
401 struct ib_phys_buf buf;
404 DEBUG_LOG(PFX "krping_setup_buffers called on cb %p\n", cb);
407 cb->dma_mr = ib_get_dma_mr(cb->pd, IB_ACCESS_LOCAL_WRITE|
408 IB_ACCESS_REMOTE_READ|
409 IB_ACCESS_REMOTE_WRITE);
410 if (IS_ERR(cb->dma_mr)) {
411 log(LOG_ERR, "reg_dmamr failed\n");
412 return PTR_ERR(cb->dma_mr);
416 buf.addr = vtophys(&cb->recv_buf);
417 buf.size = sizeof cb->recv_buf;
418 iovbase = vtophys(&cb->recv_buf);
419 cb->recv_mr = ib_reg_phys_mr(cb->pd, &buf, 1,
420 IB_ACCESS_LOCAL_WRITE,
423 if (IS_ERR(cb->recv_mr)) {
424 log(LOG_ERR, "recv_buf reg_mr failed\n");
425 return PTR_ERR(cb->recv_mr);
428 buf.addr = vtophys(&cb->send_buf);
429 buf.size = sizeof cb->send_buf;
430 iovbase = vtophys(&cb->send_buf);
431 cb->send_mr = ib_reg_phys_mr(cb->pd, &buf, 1,
434 if (IS_ERR(cb->send_mr)) {
435 log(LOG_ERR, "send_buf reg_mr failed\n");
436 ib_dereg_mr(cb->recv_mr);
437 return PTR_ERR(cb->send_mr);
441 /* RNIC adapters have a limit upto which it can register physical memory
442 * If DMA-MR memory mode is set then normally driver registers maximum
443 * supported memory. After that if contigmalloc allocates memory beyond the
444 * specified RNIC limit then Krping may not work.
446 if (cb->use_dmamr && cb->memlimit)
447 cb->rdma_buf = contigmalloc(cb->size, M_DEVBUF, M_WAITOK, 0, cb->memlimit,
450 cb->rdma_buf = contigmalloc(cb->size, M_DEVBUF, M_WAITOK, 0, -1UL,
454 log(LOG_ERR, "rdma_buf malloc failed\n");
458 if (!cb->use_dmamr) {
460 buf.addr = vtophys(cb->rdma_buf);
462 iovbase = vtophys(cb->rdma_buf);
463 cb->rdma_mr = ib_reg_phys_mr(cb->pd, &buf, 1,
464 IB_ACCESS_REMOTE_READ|
465 IB_ACCESS_REMOTE_WRITE,
468 if (IS_ERR(cb->rdma_mr)) {
469 log(LOG_ERR, "rdma_buf reg_mr failed\n");
470 ret = PTR_ERR(cb->rdma_mr);
475 if (!cb->server || cb->wlat || cb->rlat || cb->bw) {
476 if (cb->use_dmamr && cb->memlimit)
477 cb->start_buf = contigmalloc(cb->size, M_DEVBUF, M_WAITOK,
478 0, cb->memlimit, PAGE_SIZE, 0);
480 cb->start_buf = contigmalloc(cb->size, M_DEVBUF, M_WAITOK,
481 0, -1UL, PAGE_SIZE, 0);
482 if (!cb->start_buf) {
483 log(LOG_ERR, "start_buf malloc failed\n");
487 if (!cb->use_dmamr) {
488 unsigned flags = IB_ACCESS_REMOTE_READ;
490 if (cb->wlat || cb->rlat || cb->bw)
491 flags |= IB_ACCESS_REMOTE_WRITE;
492 buf.addr = vtophys(cb->start_buf);
494 iovbase = vtophys(cb->start_buf);
495 cb->start_mr = ib_reg_phys_mr(cb->pd, &buf, 1,
499 if (IS_ERR(cb->start_mr)) {
500 log(LOG_ERR, "start_buf reg_mr failed\n");
501 ret = PTR_ERR(cb->start_mr);
508 DEBUG_LOG(PFX "allocated & registered buffers...\n");
511 contigfree(cb->start_buf, cb->size, M_DEVBUF);
514 ib_dereg_mr(cb->rdma_mr);
516 contigfree(cb->rdma_buf, cb->size, M_DEVBUF);
519 ib_dereg_mr(cb->dma_mr);
521 ib_dereg_mr(cb->recv_mr);
522 ib_dereg_mr(cb->send_mr);
527 static void krping_free_buffers(struct krping_cb *cb)
529 DEBUG_LOG(PFX "krping_free_buffers called on cb %p\n", cb);
532 dma_unmap_single(cb->pd->device->dma_device,
533 pci_unmap_addr(cb, recv_mapping),
534 sizeof(cb->recv_buf), DMA_BIDIRECTIONAL);
535 dma_unmap_single(cb->pd->device->dma_device,
536 pci_unmap_addr(cb, send_mapping),
537 sizeof(cb->send_buf), DMA_BIDIRECTIONAL);
538 dma_unmap_single(cb->pd->device->dma_device,
539 pci_unmap_addr(cb, rdma_mapping),
540 cb->size, DMA_BIDIRECTIONAL);
542 contigfree(cb->rdma_buf, cb->size, M_DEVBUF);
543 if (!cb->server || cb->wlat || cb->rlat || cb->bw) {
545 dma_unmap_single(cb->pd->device->dma_device,
546 pci_unmap_addr(cb, start_mapping),
547 cb->size, DMA_BIDIRECTIONAL);
549 contigfree(cb->start_buf, cb->size, M_DEVBUF);
552 ib_dereg_mr(cb->dma_mr);
554 ib_dereg_mr(cb->send_mr);
555 ib_dereg_mr(cb->recv_mr);
556 ib_dereg_mr(cb->rdma_mr);
558 ib_dereg_mr(cb->start_mr);
562 static int krping_create_qp(struct krping_cb *cb)
564 struct ib_qp_init_attr init_attr;
567 memset(&init_attr, 0, sizeof(init_attr));
568 init_attr.cap.max_send_wr = cb->txdepth;
569 init_attr.cap.max_recv_wr = 2;
570 init_attr.cap.max_recv_sge = 1;
571 init_attr.cap.max_send_sge = 1;
572 init_attr.qp_type = IB_QPT_RC;
573 init_attr.send_cq = cb->cq;
574 init_attr.recv_cq = cb->cq;
577 ret = rdma_create_qp(cb->child_cm_id, cb->pd, &init_attr);
579 cb->qp = cb->child_cm_id->qp;
581 ret = rdma_create_qp(cb->cm_id, cb->pd, &init_attr);
583 cb->qp = cb->cm_id->qp;
589 static void krping_free_qp(struct krping_cb *cb)
591 ib_destroy_qp(cb->qp);
592 ib_destroy_cq(cb->cq);
593 ib_dealloc_pd(cb->pd);
596 static int krping_setup_qp(struct krping_cb *cb, struct rdma_cm_id *cm_id)
599 cb->pd = ib_alloc_pd(cm_id->device);
600 if (IS_ERR(cb->pd)) {
601 log(LOG_ERR, "ib_alloc_pd failed\n");
602 return PTR_ERR(cb->pd);
604 DEBUG_LOG(PFX "created pd %p\n", cb->pd);
606 cb->cq = ib_create_cq(cm_id->device, krping_cq_event_handler, NULL,
607 cb, cb->txdepth * 2, 0);
608 if (IS_ERR(cb->cq)) {
609 log(LOG_ERR, "ib_create_cq failed\n");
610 ret = PTR_ERR(cb->cq);
613 DEBUG_LOG(PFX "created cq %p\n", cb->cq);
615 if (!cb->wlat && !cb->rlat && !cb->bw) {
616 ret = ib_req_notify_cq(cb->cq, IB_CQ_NEXT_COMP);
618 log(LOG_ERR, "ib_create_cq failed\n");
623 ret = krping_create_qp(cb);
625 log(LOG_ERR, "krping_create_qp failed: %d\n", ret);
628 DEBUG_LOG(PFX "created qp %p\n", cb->qp);
631 ib_destroy_cq(cb->cq);
633 ib_dealloc_pd(cb->pd);
637 static void krping_format_send(struct krping_cb *cb, u64 buf,
640 struct krping_rdma_info *info = &cb->send_buf;
642 info->buf = htonll(buf);
643 info->rkey = htonl(mr->rkey);
644 info->size = htonl(cb->size);
646 DEBUG_LOG(PFX "RDMA addr %llx rkey %x len %d\n",
647 (unsigned long long)buf, mr->rkey, cb->size);
650 static void krping_test_server(struct krping_cb *cb)
652 struct ib_send_wr *bad_wr;
656 /* Wait for client's Start STAG/TO/Len */
657 krping_wait(cb, RDMA_READ_ADV);
658 if (cb->state != RDMA_READ_ADV) {
659 DEBUG_LOG(PFX "wait for RDMA_READ_ADV state %d\n",
664 DEBUG_LOG(PFX "server received sink adv\n");
666 /* Issue RDMA Read. */
667 cb->rdma_sq_wr.opcode = IB_WR_RDMA_READ;
668 cb->rdma_sq_wr.wr.rdma.rkey = cb->remote_rkey;
669 cb->rdma_sq_wr.wr.rdma.remote_addr = cb->remote_addr;
670 cb->rdma_sq_wr.sg_list->length = cb->remote_len;
672 ret = ib_post_send(cb->qp, &cb->rdma_sq_wr, &bad_wr);
674 log(LOG_ERR, "post send error %d\n", ret);
677 DEBUG_LOG(PFX "server posted rdma read req \n");
679 /* Wait for read completion */
680 krping_wait(cb, RDMA_READ_COMPLETE);
681 if (cb->state != RDMA_READ_COMPLETE) {
683 "wait for RDMA_READ_COMPLETE state %d\n",
687 DEBUG_LOG(PFX "server received read complete\n");
689 /* Display data in recv buf */
691 DEBUG_LOG("server ping data: %s\n", cb->rdma_buf);
693 /* Tell client to continue */
694 ret = ib_post_send(cb->qp, &cb->sq_wr, &bad_wr);
696 log(LOG_ERR, "post send error %d\n", ret);
699 DEBUG_LOG(PFX "server posted go ahead\n");
701 /* Wait for client's RDMA STAG/TO/Len */
702 krping_wait(cb, RDMA_WRITE_ADV);
703 if (cb->state != RDMA_WRITE_ADV) {
705 "wait for RDMA_WRITE_ADV state %d\n",
709 DEBUG_LOG(PFX "server received sink adv\n");
711 /* RDMA Write echo data */
712 cb->rdma_sq_wr.opcode = IB_WR_RDMA_WRITE;
713 cb->rdma_sq_wr.wr.rdma.rkey = cb->remote_rkey;
714 cb->rdma_sq_wr.wr.rdma.remote_addr = cb->remote_addr;
715 cb->rdma_sq_wr.sg_list->length = strlen(cb->rdma_buf) + 1;
716 DEBUG_LOG(PFX "rdma write from lkey %x laddr %llx len %d\n",
717 cb->rdma_sq_wr.sg_list->lkey,
718 (unsigned long long)cb->rdma_sq_wr.sg_list->addr,
719 cb->rdma_sq_wr.sg_list->length);
721 ret = ib_post_send(cb->qp, &cb->rdma_sq_wr, &bad_wr);
723 log(LOG_ERR, "post send error %d\n", ret);
727 /* Wait for completion */
728 krping_wait(cb, RDMA_WRITE_COMPLETE);
729 if (cb->state != RDMA_WRITE_COMPLETE) {
731 "wait for RDMA_WRITE_COMPLETE state %d\n",
735 DEBUG_LOG(PFX "server rdma write complete \n");
737 cb->state = CONNECTED;
739 /* Tell client to begin again */
740 ret = ib_post_send(cb->qp, &cb->sq_wr, &bad_wr);
742 log(LOG_ERR, "post send error %d\n", ret);
745 DEBUG_LOG(PFX "server posted go ahead\n");
749 static void rlat_test(struct krping_cb *cb)
752 int iters = cb->count;
753 struct timeval start_tv, stop_tv;
756 struct ib_send_wr *bad_wr;
760 cb->rdma_sq_wr.opcode = IB_WR_RDMA_READ;
761 cb->rdma_sq_wr.wr.rdma.rkey = cb->remote_rkey;
762 cb->rdma_sq_wr.wr.rdma.remote_addr = cb->remote_addr;
763 cb->rdma_sq_wr.sg_list->length = cb->size;
765 microtime(&start_tv);
767 cb->state = RDMA_READ_ADV;
768 ib_req_notify_cq(cb->cq, IB_CQ_NEXT_COMP);
770 while (scnt < iters) {
772 cb->state = RDMA_READ_ADV;
773 ret = ib_post_send(cb->qp, &cb->rdma_sq_wr, &bad_wr);
776 "Couldn't post send: ret=%d scnt %d\n",
783 krping_wait(cb, RDMA_READ_COMPLETE);
784 if (cb->state == RDMA_READ_COMPLETE) {
786 ib_req_notify_cq(cb->cq, IB_CQ_NEXT_COMP);
791 ne = ib_poll_cq(cb->cq, 1, &wc);
792 if (cb->state == ERROR) {
794 "state == ERROR...bailing scnt %d\n", scnt);
800 log(LOG_ERR, "poll CQ failed %d\n", ne);
803 if (cb->poll && wc.status != IB_WC_SUCCESS) {
804 log(LOG_ERR, "Completion wth error at %s:\n",
805 cb->server ? "server" : "client");
806 log(LOG_ERR, "Failed status %d: wr_id %d\n",
807 wc.status, (int) wc.wr_id);
814 if (stop_tv.tv_usec < start_tv.tv_usec) {
815 stop_tv.tv_usec += 1000000;
819 log(LOG_ERR, "delta sec %zu delta usec %lu iter %d size %d\n",
820 stop_tv.tv_sec - start_tv.tv_sec,
821 stop_tv.tv_usec - start_tv.tv_usec,
825 static int alloc_cycle_mem(int cycle_iters,
826 cycles_t **post_cycles_start,
827 cycles_t **post_cycles_stop,
828 cycles_t **poll_cycles_start,
829 cycles_t **poll_cycles_stop,
830 cycles_t **last_poll_cycles_start)
832 *post_cycles_start = malloc(cycle_iters * sizeof(cycles_t), M_DEVBUF, M_WAITOK);
833 if (!*post_cycles_start) {
836 *post_cycles_stop = malloc(cycle_iters * sizeof(cycles_t), M_DEVBUF, M_WAITOK);
837 if (!*post_cycles_stop) {
840 *poll_cycles_start = malloc(cycle_iters * sizeof(cycles_t), M_DEVBUF, M_WAITOK);
841 if (!*poll_cycles_start) {
844 *poll_cycles_stop = malloc(cycle_iters * sizeof(cycles_t), M_DEVBUF, M_WAITOK);
845 if (!*poll_cycles_stop) {
848 *last_poll_cycles_start = malloc(cycle_iters * sizeof(cycles_t), M_DEVBUF, M_WAITOK);
849 if (!*last_poll_cycles_start) {
854 free(*poll_cycles_stop, M_DEVBUF);
856 free(*poll_cycles_start, M_DEVBUF);
858 free(*post_cycles_stop, M_DEVBUF);
860 free(*post_cycles_start, M_DEVBUF);
862 log(LOG_ERR, "%s malloc failed\n", __FUNCTION__);
866 static void free_cycle_mem(cycles_t *post_cycles_start,
867 cycles_t *post_cycles_stop,
868 cycles_t *poll_cycles_start,
869 cycles_t *poll_cycles_stop,
870 cycles_t *last_poll_cycles_start)
872 free(last_poll_cycles_start, M_DEVBUF);
873 free(poll_cycles_stop, M_DEVBUF);
874 free(poll_cycles_start, M_DEVBUF);
875 free(post_cycles_stop, M_DEVBUF);
876 free(post_cycles_start, M_DEVBUF);
879 static void wlat_test(struct krping_cb *cb)
881 int ccnt, scnt, rcnt;
883 volatile char *poll_buf = (char *) cb->start_buf;
884 char *buf = (char *)cb->rdma_buf;
888 struct timeval start_tv, stop_tv;
889 cycles_t *post_cycles_start, *post_cycles_stop;
890 cycles_t *poll_cycles_start, *poll_cycles_stop;
891 cycles_t *last_poll_cycles_start;
892 cycles_t sum_poll = 0, sum_post = 0, sum_last_poll = 0;
894 int cycle_iters = 1000;
897 err = alloc_cycle_mem(cycle_iters, &post_cycles_start, &post_cycles_stop,
898 &poll_cycles_start, &poll_cycles_stop, &last_poll_cycles_start);
901 log(LOG_ERR, "%s malloc failed\n", __FUNCTION__);
905 cb->rdma_sq_wr.opcode = IB_WR_RDMA_WRITE;
906 cb->rdma_sq_wr.wr.rdma.rkey = cb->remote_rkey;
907 cb->rdma_sq_wr.wr.rdma.remote_addr = cb->remote_addr;
908 cb->rdma_sq_wr.sg_list->length = cb->size;
910 if (cycle_iters > iters)
912 microtime(&start_tv);
913 while (scnt < iters || ccnt < iters || rcnt < iters) {
915 /* Wait till buffer changes. */
916 if (rcnt < iters && !(scnt < 1 && !cb->server)) {
918 while (*poll_buf != (char)rcnt) {
919 if (cb->state == ERROR) {
920 log(LOG_ERR, "state = ERROR, bailing\n");
927 struct ib_send_wr *bad_wr;
930 if (scnt < cycle_iters)
931 post_cycles_start[scnt] = get_cycles();
932 if (ib_post_send(cb->qp, &cb->rdma_sq_wr, &bad_wr)) {
933 log(LOG_ERR, "Couldn't post send: scnt=%d\n",
937 if (scnt < cycle_iters)
938 post_cycles_stop[scnt] = get_cycles();
946 if (ccnt < cycle_iters)
947 poll_cycles_start[ccnt] = get_cycles();
949 if (ccnt < cycle_iters)
950 last_poll_cycles_start[ccnt] = get_cycles();
951 ne = ib_poll_cq(cb->cq, 1, &wc);
953 if (ccnt < cycle_iters)
954 poll_cycles_stop[ccnt] = get_cycles();
958 log(LOG_ERR, "poll CQ failed %d\n", ne);
961 if (wc.status != IB_WC_SUCCESS) {
962 log(LOG_ERR, "Completion wth error at %s:\n",
963 cb->server ? "server" : "client");
964 log(LOG_ERR, "Failed status %d: wr_id %d\n",
965 wc.status, (int) wc.wr_id);
966 log(LOG_ERR, "scnt=%d, rcnt=%d, ccnt=%d\n",
974 if (stop_tv.tv_usec < start_tv.tv_usec) {
975 stop_tv.tv_usec += 1000000;
979 for (i=0; i < cycle_iters; i++) {
980 sum_post += post_cycles_stop[i] - post_cycles_start[i];
981 sum_poll += poll_cycles_stop[i] - poll_cycles_start[i];
982 sum_last_poll += poll_cycles_stop[i] - last_poll_cycles_start[i];
985 log(LOG_ERR, "delta sec %zu delta usec %lu iter %d size %d cycle_iters %d sum_post %llu sum_poll %llu sum_last_poll %llu\n",
986 stop_tv.tv_sec - start_tv.tv_sec,
987 stop_tv.tv_usec - start_tv.tv_usec,
988 scnt, cb->size, cycle_iters,
989 (unsigned long long)sum_post, (unsigned long long)sum_poll,
990 (unsigned long long)sum_last_poll);
992 free_cycle_mem(post_cycles_start, post_cycles_stop, poll_cycles_start,
993 poll_cycles_stop, last_poll_cycles_start);
996 static void bw_test(struct krping_cb *cb)
998 int ccnt, scnt, rcnt;
1003 struct timeval start_tv, stop_tv;
1004 cycles_t *post_cycles_start, *post_cycles_stop;
1005 cycles_t *poll_cycles_start, *poll_cycles_stop;
1006 cycles_t *last_poll_cycles_start;
1007 cycles_t sum_poll = 0, sum_post = 0, sum_last_poll = 0;
1009 int cycle_iters = 1000;
1012 err = alloc_cycle_mem(cycle_iters, &post_cycles_start, &post_cycles_stop,
1013 &poll_cycles_start, &poll_cycles_stop, &last_poll_cycles_start);
1016 log(LOG_ERR, "%s kmalloc failed\n", __FUNCTION__);
1020 cb->rdma_sq_wr.opcode = IB_WR_RDMA_WRITE;
1021 cb->rdma_sq_wr.wr.rdma.rkey = cb->remote_rkey;
1022 cb->rdma_sq_wr.wr.rdma.remote_addr = cb->remote_addr;
1023 cb->rdma_sq_wr.sg_list->length = cb->size;
1025 if (cycle_iters > iters)
1026 cycle_iters = iters;
1027 microtime(&start_tv);
1028 while (scnt < iters || ccnt < iters) {
1030 while (scnt < iters && scnt - ccnt < cb->txdepth) {
1031 struct ib_send_wr *bad_wr;
1033 if (scnt < cycle_iters)
1034 post_cycles_start[scnt] = get_cycles();
1035 if (ib_post_send(cb->qp, &cb->rdma_sq_wr, &bad_wr)) {
1036 log(LOG_ERR, "Couldn't post send: scnt=%d\n",
1040 if (scnt < cycle_iters)
1041 post_cycles_stop[scnt] = get_cycles();
1049 if (ccnt < cycle_iters)
1050 poll_cycles_start[ccnt] = get_cycles();
1052 if (ccnt < cycle_iters)
1053 last_poll_cycles_start[ccnt] = get_cycles();
1054 ne = ib_poll_cq(cb->cq, 1, &wc);
1056 if (ccnt < cycle_iters)
1057 poll_cycles_stop[ccnt] = get_cycles();
1061 log(LOG_ERR, "poll CQ failed %d\n", ne);
1064 if (wc.status != IB_WC_SUCCESS) {
1065 log(LOG_ERR, "Completion wth error at %s:\n",
1066 cb->server ? "server" : "client");
1067 log(LOG_ERR, "Failed status %d: wr_id %d\n",
1068 wc.status, (int) wc.wr_id);
1073 microtime(&stop_tv);
1075 if (stop_tv.tv_usec < start_tv.tv_usec) {
1076 stop_tv.tv_usec += 1000000;
1077 stop_tv.tv_sec -= 1;
1080 for (i=0; i < cycle_iters; i++) {
1081 sum_post += post_cycles_stop[i] - post_cycles_start[i];
1082 sum_poll += poll_cycles_stop[i] - poll_cycles_start[i];
1083 sum_last_poll += poll_cycles_stop[i] - last_poll_cycles_start[i];
1086 log(LOG_ERR, "delta sec %zu delta usec %lu iter %d size %d cycle_iters %d sum_post %llu sum_poll %llu sum_last_poll %llu\n",
1087 stop_tv.tv_sec - start_tv.tv_sec,
1088 stop_tv.tv_usec - start_tv.tv_usec,
1089 scnt, cb->size, cycle_iters,
1090 (unsigned long long)sum_post, (unsigned long long)sum_poll,
1091 (unsigned long long)sum_last_poll);
1093 free_cycle_mem(post_cycles_start, post_cycles_stop, poll_cycles_start,
1094 poll_cycles_stop, last_poll_cycles_start);
1097 static void krping_rlat_test_server(struct krping_cb *cb)
1099 struct ib_send_wr *bad_wr;
1103 /* Spin waiting for client's Start STAG/TO/Len */
1104 while (cb->state < RDMA_READ_ADV) {
1105 krping_cq_event_handler(cb->cq, cb);
1108 /* Send STAG/TO/Len to client */
1110 krping_format_send(cb, cb->start_addr, cb->dma_mr);
1112 krping_format_send(cb, cb->start_addr, cb->start_mr);
1113 ret = ib_post_send(cb->qp, &cb->sq_wr, &bad_wr);
1115 log(LOG_ERR, "post send error %d\n", ret);
1119 /* Spin waiting for send completion */
1120 while ((ret = ib_poll_cq(cb->cq, 1, &wc) == 0));
1122 log(LOG_ERR, "poll error %d\n", ret);
1126 log(LOG_ERR, "send completiong error %d\n", wc.status);
1130 krping_wait(cb, ERROR);
1133 static void krping_wlat_test_server(struct krping_cb *cb)
1135 struct ib_send_wr *bad_wr;
1139 /* Spin waiting for client's Start STAG/TO/Len */
1140 while (cb->state < RDMA_READ_ADV) {
1141 krping_cq_event_handler(cb->cq, cb);
1144 /* Send STAG/TO/Len to client */
1146 krping_format_send(cb, cb->start_addr, cb->dma_mr);
1148 krping_format_send(cb, cb->start_addr, cb->start_mr);
1149 ret = ib_post_send(cb->qp, &cb->sq_wr, &bad_wr);
1151 log(LOG_ERR, "post send error %d\n", ret);
1155 /* Spin waiting for send completion */
1156 while ((ret = ib_poll_cq(cb->cq, 1, &wc) == 0));
1158 log(LOG_ERR, "poll error %d\n", ret);
1162 log(LOG_ERR, "send completiong error %d\n", wc.status);
1170 static void krping_bw_test_server(struct krping_cb *cb)
1172 struct ib_send_wr *bad_wr;
1176 /* Spin waiting for client's Start STAG/TO/Len */
1177 while (cb->state < RDMA_READ_ADV) {
1178 krping_cq_event_handler(cb->cq, cb);
1181 /* Send STAG/TO/Len to client */
1183 krping_format_send(cb, cb->start_addr, cb->dma_mr);
1185 krping_format_send(cb, cb->start_addr, cb->start_mr);
1186 ret = ib_post_send(cb->qp, &cb->sq_wr, &bad_wr);
1188 log(LOG_ERR, "post send error %d\n", ret);
1192 /* Spin waiting for send completion */
1193 while ((ret = ib_poll_cq(cb->cq, 1, &wc) == 0));
1195 log(LOG_ERR, "poll error %d\n", ret);
1199 log(LOG_ERR, "send completiong error %d\n", wc.status);
1205 krping_wait(cb, ERROR);
1208 static int krping_bind_server(struct krping_cb *cb)
1210 struct sockaddr_in sin;
1213 memset(&sin, 0, sizeof(sin));
1214 sin.sin_len = sizeof sin;
1215 sin.sin_family = AF_INET;
1216 sin.sin_addr.s_addr = cb->addr.s_addr;
1217 sin.sin_port = cb->port;
1219 ret = rdma_bind_addr(cb->cm_id, (struct sockaddr *) &sin);
1221 log(LOG_ERR, "rdma_bind_addr error %d\n", ret);
1224 DEBUG_LOG(PFX "rdma_bind_addr successful\n");
1226 DEBUG_LOG(PFX "rdma_listen\n");
1227 ret = rdma_listen(cb->cm_id, 3);
1229 log(LOG_ERR, "rdma_listen failed: %d\n", ret);
1233 krping_wait(cb, CONNECT_REQUEST);
1234 if (cb->state != CONNECT_REQUEST) {
1235 log(LOG_ERR, "wait for CONNECT_REQUEST state %d\n",
1243 static void krping_run_server(struct krping_cb *cb)
1245 struct ib_recv_wr *bad_wr;
1248 ret = krping_bind_server(cb);
1252 ret = krping_setup_qp(cb, cb->child_cm_id);
1254 log(LOG_ERR, "setup_qp failed: %d\n", ret);
1258 ret = krping_setup_buffers(cb);
1260 log(LOG_ERR, "krping_setup_buffers failed: %d\n", ret);
1264 ret = ib_post_recv(cb->qp, &cb->rq_wr, &bad_wr);
1266 log(LOG_ERR, "ib_post_recv failed: %d\n", ret);
1270 ret = krping_accept(cb);
1272 log(LOG_ERR, "connect error %d\n", ret);
1277 krping_wlat_test_server(cb);
1279 krping_rlat_test_server(cb);
1281 krping_bw_test_server(cb);
1283 krping_test_server(cb);
1285 rdma_disconnect(cb->child_cm_id);
1286 rdma_destroy_id(cb->child_cm_id);
1288 krping_free_buffers(cb);
1293 static void krping_test_client(struct krping_cb *cb)
1295 int ping, start, cc, i, ret;
1296 struct ib_send_wr *bad_wr;
1300 for (ping = 0; !cb->count || ping < cb->count; ping++) {
1301 cb->state = RDMA_READ_ADV;
1303 /* Put some ascii text in the buffer. */
1304 cc = sprintf(cb->start_buf, "rdma-ping-%d: ", ping);
1305 for (i = cc, c = start; i < cb->size; i++) {
1306 cb->start_buf[i] = c;
1314 cb->start_buf[cb->size - 1] = 0;
1317 krping_format_send(cb, cb->start_addr, cb->dma_mr);
1319 krping_format_send(cb, cb->start_addr, cb->start_mr);
1321 ret = ib_post_send(cb->qp, &cb->sq_wr, &bad_wr);
1323 log(LOG_ERR, "post send error %d\n", ret);
1327 /* Wait for server to ACK */
1328 krping_wait(cb, RDMA_WRITE_ADV);
1329 if (cb->state != RDMA_WRITE_ADV) {
1331 "wait for RDMA_WRITE_ADV state %d\n",
1337 krping_format_send(cb, cb->rdma_addr, cb->dma_mr);
1339 krping_format_send(cb, cb->rdma_addr, cb->rdma_mr);
1341 ret = ib_post_send(cb->qp, &cb->sq_wr, &bad_wr);
1343 log(LOG_ERR, "post send error %d\n", ret);
1347 /* Wait for the server to say the RDMA Write is complete. */
1348 krping_wait(cb, RDMA_WRITE_COMPLETE);
1349 if (cb->state != RDMA_WRITE_COMPLETE) {
1351 "wait for RDMA_WRITE_COMPLETE state %d\n",
1357 if (memcmp(cb->start_buf, cb->rdma_buf, cb->size)) {
1358 log(LOG_ERR, "data mismatch!\n");
1363 DEBUG_LOG("ping data: %s\n", cb->rdma_buf);
1367 static void krping_rlat_test_client(struct krping_cb *cb)
1369 struct ib_send_wr *bad_wr;
1373 cb->state = RDMA_READ_ADV;
1375 /* Send STAG/TO/Len to client */
1377 krping_format_send(cb, cb->start_addr, cb->dma_mr);
1379 krping_format_send(cb, cb->start_addr, cb->rdma_mr);
1380 ret = ib_post_send(cb->qp, &cb->sq_wr, &bad_wr);
1382 log(LOG_ERR, "post send error %d\n", ret);
1386 /* Spin waiting for send completion */
1387 while ((ret = ib_poll_cq(cb->cq, 1, &wc) == 0));
1389 log(LOG_ERR, "poll error %d\n", ret);
1393 log(LOG_ERR, "send completion error %d\n", wc.status);
1397 /* Spin waiting for server's Start STAG/TO/Len */
1398 while (cb->state < RDMA_WRITE_ADV) {
1399 krping_cq_event_handler(cb->cq, cb);
1405 struct timeval start, stop;
1408 unsigned long long elapsed;
1410 struct ib_send_wr *bad_wr;
1413 cb->rdma_sq_wr.opcode = IB_WR_RDMA_WRITE;
1414 cb->rdma_sq_wr.wr.rdma.rkey = cb->remote_rkey;
1415 cb->rdma_sq_wr.wr.rdma.remote_addr = cb->remote_addr;
1416 cb->rdma_sq_wr.sg_list->length = 0;
1417 cb->rdma_sq_wr.num_sge = 0;
1420 for (i=0; i < 100000; i++) {
1421 if (ib_post_send(cb->qp, &cb->rdma_sq_wr, &bad_wr)) {
1422 log(LOG_ERR, "Couldn't post send\n");
1426 ne = ib_poll_cq(cb->cq, 1, &wc);
1429 log(LOG_ERR, "poll CQ failed %d\n", ne);
1432 if (wc.status != IB_WC_SUCCESS) {
1433 log(LOG_ERR, "Completion wth error at %s:\n",
1434 cb->server ? "server" : "client");
1435 log(LOG_ERR, "Failed status %d: wr_id %d\n",
1436 wc.status, (int) wc.wr_id);
1442 if (stop.tv_usec < start.tv_usec) {
1443 stop.tv_usec += 1000000;
1446 sec = stop.tv_sec - start.tv_sec;
1447 usec = stop.tv_usec - start.tv_usec;
1448 elapsed = sec * 1000000 + usec;
1449 log(LOG_ERR, "0B-write-lat iters 100000 usec %llu\n", elapsed);
1456 static void krping_wlat_test_client(struct krping_cb *cb)
1458 struct ib_send_wr *bad_wr;
1462 cb->state = RDMA_READ_ADV;
1464 /* Send STAG/TO/Len to client */
1466 krping_format_send(cb, cb->start_addr, cb->dma_mr);
1468 krping_format_send(cb, cb->start_addr, cb->start_mr);
1469 ret = ib_post_send(cb->qp, &cb->sq_wr, &bad_wr);
1471 log(LOG_ERR, "post send error %d\n", ret);
1475 /* Spin waiting for send completion */
1476 while ((ret = ib_poll_cq(cb->cq, 1, &wc) == 0));
1478 log(LOG_ERR, "poll error %d\n", ret);
1482 log(LOG_ERR, "send completion error %d\n", wc.status);
1486 /* Spin waiting for server's Start STAG/TO/Len */
1487 while (cb->state < RDMA_WRITE_ADV) {
1488 krping_cq_event_handler(cb->cq, cb);
1494 static void krping_bw_test_client(struct krping_cb *cb)
1496 struct ib_send_wr *bad_wr;
1500 cb->state = RDMA_READ_ADV;
1502 /* Send STAG/TO/Len to client */
1504 krping_format_send(cb, cb->start_addr, cb->dma_mr);
1506 krping_format_send(cb, cb->start_addr, cb->start_mr);
1507 ret = ib_post_send(cb->qp, &cb->sq_wr, &bad_wr);
1509 log(LOG_ERR, "post send error %d\n", ret);
1513 /* Spin waiting for send completion */
1514 while ((ret = ib_poll_cq(cb->cq, 1, &wc) == 0));
1516 log(LOG_ERR, "poll error %d\n", ret);
1520 log(LOG_ERR, "send completion error %d\n", wc.status);
1524 /* Spin waiting for server's Start STAG/TO/Len */
1525 while (cb->state < RDMA_WRITE_ADV) {
1526 krping_cq_event_handler(cb->cq, cb);
1532 static int krping_connect_client(struct krping_cb *cb)
1534 struct rdma_conn_param conn_param;
1537 memset(&conn_param, 0, sizeof conn_param);
1538 conn_param.responder_resources = 1;
1539 conn_param.initiator_depth = 1;
1540 conn_param.retry_count = 10;
1542 ret = rdma_connect(cb->cm_id, &conn_param);
1544 log(LOG_ERR, "rdma_connect error %d\n", ret);
1548 krping_wait(cb, CONNECTED);
1549 if (cb->state == ERROR) {
1550 log(LOG_ERR, "wait for CONNECTED state %d\n", cb->state);
1554 DEBUG_LOG(PFX "rdma_connect successful\n");
1558 static int krping_bind_client(struct krping_cb *cb)
1560 struct sockaddr_in sin;
1563 memset(&sin, 0, sizeof(sin));
1564 sin.sin_len = sizeof sin;
1565 sin.sin_family = AF_INET;
1566 sin.sin_addr.s_addr = cb->addr.s_addr;
1567 sin.sin_port = cb->port;
1569 ret = rdma_resolve_addr(cb->cm_id, NULL, (struct sockaddr *) &sin,
1572 log(LOG_ERR, "rdma_resolve_addr error %d\n", ret);
1576 krping_wait(cb, ROUTE_RESOLVED);
1577 if (cb->state != ROUTE_RESOLVED) {
1579 "addr/route resolution did not resolve: state %d\n",
1584 DEBUG_LOG(PFX "rdma_resolve_addr - rdma_resolve_route successful\n");
1588 static void krping_run_client(struct krping_cb *cb)
1590 struct ib_recv_wr *bad_wr;
1593 ret = krping_bind_client(cb);
1597 ret = krping_setup_qp(cb, cb->cm_id);
1599 log(LOG_ERR, "setup_qp failed: %d\n", ret);
1603 ret = krping_setup_buffers(cb);
1605 log(LOG_ERR, "krping_setup_buffers failed: %d\n", ret);
1609 ret = ib_post_recv(cb->qp, &cb->rq_wr, &bad_wr);
1611 log(LOG_ERR, "ib_post_recv failed: %d\n", ret);
1615 ret = krping_connect_client(cb);
1617 log(LOG_ERR, "connect error %d\n", ret);
1622 krping_wlat_test_client(cb);
1624 krping_rlat_test_client(cb);
1626 krping_bw_test_client(cb);
1628 krping_test_client(cb);
1629 rdma_disconnect(cb->cm_id);
1631 krping_free_buffers(cb);
1636 int krping_doit(char *cmd)
1638 struct krping_cb *cb;
1642 unsigned long optint;
1645 cb = malloc(sizeof(*cb), M_DEVBUF, M_WAITOK);
1648 bzero(cb, sizeof *cb);
1650 mtx_lock(&krping_mutex);
1651 TAILQ_INSERT_TAIL(&krping_cbs, cb, list);
1652 mtx_unlock(&krping_mutex);
1657 cb->txdepth = RPING_SQ_DEPTH;
1660 mtx_init(&cb->lock, "krping mtx", NULL, MTX_DUPOK|MTX_DEF);
1662 while ((op = krping_getopt("krping", &cmd, krping_opts, NULL, &optarg,
1666 cb->addr_str = optarg;
1667 DEBUG_LOG(PFX "ipaddr (%s)\n", optarg);
1668 if (!inet_aton(optarg, &cb->addr)) {
1669 log(LOG_ERR, "bad addr string %s\n", optarg);
1675 DEBUG_LOG(PFX "using dma mr\n");
1678 cb->port = htons(optint);
1679 DEBUG_LOG(PFX "port %d\n", (int)optint);
1683 DEBUG_LOG("server\n");
1687 DEBUG_LOG(PFX "server\n");
1691 DEBUG_LOG(PFX "client\n");
1695 if ((cb->size < 1) ||
1696 (cb->size > RPING_BUFSIZE)) {
1697 log(LOG_ERR, "Invalid size %d "
1698 "(valid range is 1 to %d)\n",
1699 cb->size, RPING_BUFSIZE);
1702 DEBUG_LOG(PFX "size %d\n", (int)optint);
1706 if (cb->count < 0) {
1707 log(LOG_ERR, "Invalid count %d\n",
1711 DEBUG_LOG(PFX "count %d\n", (int) cb->count);
1715 DEBUG_LOG(PFX "verbose\n");
1719 DEBUG_LOG(PFX "validate data\n");
1731 cb->txdepth = optint;
1732 DEBUG_LOG(PFX "txdepth %d\n", cb->txdepth);
1738 cb->memlimit = optint;
1739 if (cb->memlimit < 1) {
1740 log(LOG_ERR, "Invalid memory limit %ju\n",
1744 DEBUG_LOG(PFX "memory limit %d\n", (int)optint);
1747 log(LOG_ERR, "unknown opt %s\n", optarg);
1755 if (cb->server == -1) {
1756 log(LOG_ERR, "must be either client or server\n");
1760 if ((cb->bw + cb->rlat + cb->wlat) > 1) {
1761 log(LOG_ERR, "Pick only one test: bw, rlat, wlat\n");
1767 cb->cm_id = rdma_create_id(krping_cma_event_handler, cb, RDMA_PS_TCP);
1768 if (IS_ERR(cb->cm_id)) {
1769 ret = PTR_ERR(cb->cm_id);
1770 log(LOG_ERR, "rdma_create_id error %d\n", ret);
1773 DEBUG_LOG(PFX "created cm_id %p\n", cb->cm_id);
1775 krping_run_server(cb);
1777 krping_run_client(cb);
1778 DEBUG_LOG(PFX "destroy cm_id %p\n", cb->cm_id);
1779 rdma_destroy_id(cb->cm_id);
1781 mtx_lock(&krping_mutex);
1782 TAILQ_REMOVE(&krping_cbs, cb, list);
1783 mtx_unlock(&krping_mutex);
1788 void krping_init(void)
1790 mtx_init(&krping_mutex, "krping lock", NULL, MTX_DEF);
1791 TAILQ_INIT(&krping_cbs);