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/module.h>
45 #include <sys/endian.h>
46 #include <sys/limits.h>
48 #include <sys/signalvar.h>
51 #include <sys/mutex.h>
52 #include <sys/rwlock.h>
53 #include <sys/queue.h>
54 #include <sys/taskqueue.h>
55 #include <sys/syslog.h>
60 #include <contrib/rdma/rdma_cm.h>
65 #define PFX "krping: "
68 #define DEBUG_LOG if (debug) printf
70 static const struct krping_option krping_opts[] = {
71 {"count", OPT_INT, 'C'},
72 {"size", OPT_INT, 'S'},
73 {"addr", OPT_STRING, 'a'},
74 {"port", OPT_INT, 'p'},
75 {"verbose", OPT_NOPARAM, 'v'},
76 {"validate", OPT_NOPARAM, 'V'},
77 {"server", OPT_NOPARAM, 's'},
78 {"client", OPT_NOPARAM, 'c'},
79 {"dmamr", OPT_NOPARAM, 'D'},
80 {"debug", OPT_NOPARAM, 'd'},
81 {"wlat", OPT_NOPARAM, 'l'},
82 {"rlat", OPT_NOPARAM, 'L'},
83 {"bw", OPT_NOPARAM, 'B'},
84 {"tx-depth", OPT_INT, 't'},
85 {"poll", OPT_NOPARAM, 'P'},
89 struct mtx krping_mutex;
92 * List of running krping threads.
94 struct krping_cb_list krping_cbs;
97 * krping "ping/pong" loop:
98 * client sends source rkey/addr/len
99 * server receives source rkey/add/len
100 * server rdma reads "ping" data from source
101 * server sends "go ahead" on rdma read completion
102 * client sends sink rkey/addr/len
103 * server receives sink rkey/addr/len
104 * server rdma writes "pong" data to sink
105 * server sends "go ahead" on rdma write completion
110 * Default max buffer size for IO...
112 #define RPING_BUFSIZE 128*1024
113 #define RPING_SQ_DEPTH 32
115 static void krping_wait(struct krping_cb *cb, int state)
119 while (cb->state < state) {
120 rc = msleep(cb, &cb->lock, 0, "krping", 0);
121 if (rc && rc != ERESTART) {
126 mtx_unlock(&cb->lock);
129 static int krping_cma_event_handler(struct rdma_cm_id *cma_id,
130 struct rdma_cm_event *event)
133 struct krping_cb *cb = cma_id->context;
135 DEBUG_LOG(PFX "cma_event type %d cma_id %p (%s)\n", event->event, cma_id,
136 (cma_id == cb->cm_id) ? "parent" : "child");
139 switch (event->event) {
140 case RDMA_CM_EVENT_ADDR_RESOLVED:
141 cb->state = ADDR_RESOLVED;
142 ret = rdma_resolve_route(cma_id, 2000);
144 log(LOG_ERR, "rdma_resolve_route error %d\n",
150 case RDMA_CM_EVENT_ROUTE_RESOLVED:
151 cb->state = ROUTE_RESOLVED;
155 case RDMA_CM_EVENT_CONNECT_REQUEST:
156 cb->state = CONNECT_REQUEST;
157 cb->child_cm_id = cma_id;
158 DEBUG_LOG(PFX "child cma %p\n", cb->child_cm_id);
162 case RDMA_CM_EVENT_ESTABLISHED:
163 DEBUG_LOG(PFX "ESTABLISHED\n");
165 cb->state = CONNECTED;
170 case RDMA_CM_EVENT_ADDR_ERROR:
171 case RDMA_CM_EVENT_ROUTE_ERROR:
172 case RDMA_CM_EVENT_CONNECT_ERROR:
173 case RDMA_CM_EVENT_UNREACHABLE:
174 case RDMA_CM_EVENT_REJECTED:
175 log(LOG_ERR, "cma event %d, error %d\n", event->event,
181 case RDMA_CM_EVENT_DISCONNECTED:
182 DEBUG_LOG(PFX "DISCONNECT EVENT...\n");
187 case RDMA_CM_EVENT_DEVICE_REMOVAL:
188 DEBUG_LOG(PFX "cma detected device removal!!!!\n");
192 log(LOG_ERR, "oof bad type!\n");
196 mtx_unlock(&cb->lock);
200 static int server_recv(struct krping_cb *cb, struct ib_wc *wc)
202 if (wc->byte_len != sizeof(cb->recv_buf)) {
203 log(LOG_ERR, "Received bogus data, size %d\n",
208 cb->remote_rkey = ntohl(cb->recv_buf.rkey);
209 cb->remote_addr = ntohll(cb->recv_buf.buf);
210 cb->remote_len = ntohl(cb->recv_buf.size);
211 DEBUG_LOG(PFX "Received rkey %x addr %llx len %d from peer\n",
212 cb->remote_rkey, (unsigned long long)cb->remote_addr,
215 if (cb->state <= CONNECTED || cb->state == RDMA_WRITE_COMPLETE)
216 cb->state = RDMA_READ_ADV;
218 cb->state = RDMA_WRITE_ADV;
223 static int client_recv(struct krping_cb *cb, struct ib_wc *wc)
225 if (wc->byte_len != sizeof(cb->recv_buf)) {
226 log(LOG_ERR, "Received bogus data, size %d\n",
231 if (cb->state == RDMA_READ_ADV)
232 cb->state = RDMA_WRITE_ADV;
234 cb->state = RDMA_WRITE_COMPLETE;
239 static void krping_cq_event_handler(struct ib_cq *cq, void *ctx)
241 struct krping_cb *cb = ctx;
243 struct ib_recv_wr *bad_wr;
247 KASSERT(cb->cq == cq, ("bad condition"));
248 if (cb->state == ERROR) {
249 log(LOG_ERR, "cq completion in ERROR state\n");
250 mtx_unlock(&cb->lock);
253 if (!cb->wlat && !cb->rlat && !cb->bw)
254 ib_req_notify_cq(cb->cq, IB_CQ_NEXT_COMP);
255 while ((ret = ib_poll_cq(cb->cq, 1, &wc)) == 1) {
257 if (wc.status != IB_WC_WR_FLUSH_ERR)
258 log(LOG_ERR, "cq completion failed status %d\n",
265 DEBUG_LOG(PFX "send completion\n");
266 cb->stats.send_bytes += cb->send_sgl.length;
267 cb->stats.send_msgs++;
270 case IB_WC_RDMA_WRITE:
271 DEBUG_LOG(PFX "rdma write completion\n");
272 cb->stats.write_bytes += cb->rdma_sq_wr.sg_list->length;
273 cb->stats.write_msgs++;
274 cb->state = RDMA_WRITE_COMPLETE;
278 case IB_WC_RDMA_READ:
279 DEBUG_LOG(PFX "rdma read completion\n");
280 cb->stats.read_bytes += cb->rdma_sq_wr.sg_list->length;
281 cb->stats.read_msgs++;
282 cb->state = RDMA_READ_COMPLETE;
287 DEBUG_LOG(PFX "recv completion\n");
288 cb->stats.recv_bytes += sizeof(cb->recv_buf);
289 cb->stats.recv_msgs++;
290 if (cb->wlat || cb->rlat || cb->bw)
291 ret = server_recv(cb, &wc);
293 ret = cb->server ? server_recv(cb, &wc) :
294 client_recv(cb, &wc);
296 log(LOG_ERR, "recv wc error: %d\n", ret);
300 ret = ib_post_recv(cb->qp, &cb->rq_wr, &bad_wr);
302 log(LOG_ERR, "post recv error: %d\n",
310 log(LOG_ERR, "unknown!!!!! completion\n");
315 log(LOG_ERR, "poll error %d\n", ret);
318 mtx_unlock(&cb->lock);
323 mtx_unlock(&cb->lock);
326 static int krping_accept(struct krping_cb *cb)
328 struct rdma_conn_param conn_param;
331 DEBUG_LOG(PFX "accepting client connection request\n");
333 memset(&conn_param, 0, sizeof conn_param);
334 conn_param.responder_resources = 1;
335 conn_param.initiator_depth = 1;
337 ret = rdma_accept(cb->child_cm_id, &conn_param);
339 log(LOG_ERR, "rdma_accept error: %d\n", ret);
343 if (!cb->wlat && !cb->rlat && !cb->bw) {
344 krping_wait(cb, CONNECTED);
345 if (cb->state == ERROR) {
346 log(LOG_ERR, "wait for CONNECTED state %d\n", cb->state);
353 static void krping_setup_wr(struct krping_cb *cb)
355 /* XXX X86 only here... not mapping for dma! */
356 cb->recv_sgl.addr = vtophys(&cb->recv_buf);
357 cb->recv_sgl.length = sizeof cb->recv_buf;
359 cb->recv_sgl.lkey = cb->dma_mr->lkey;
361 cb->recv_sgl.lkey = cb->recv_mr->lkey;
362 cb->rq_wr.sg_list = &cb->recv_sgl;
363 cb->rq_wr.num_sge = 1;
365 cb->send_sgl.addr = vtophys(&cb->send_buf);
366 cb->send_sgl.length = sizeof cb->send_buf;
368 cb->send_sgl.lkey = cb->dma_mr->lkey;
370 cb->send_sgl.lkey = cb->send_mr->lkey;
372 cb->sq_wr.opcode = IB_WR_SEND;
373 cb->sq_wr.send_flags = IB_SEND_SIGNALED;
374 cb->sq_wr.sg_list = &cb->send_sgl;
375 cb->sq_wr.num_sge = 1;
377 cb->rdma_addr = vtophys(cb->rdma_buf);
378 cb->rdma_sgl.addr = cb->rdma_addr;
380 cb->rdma_sgl.lkey = cb->dma_mr->lkey;
382 cb->rdma_sgl.lkey = cb->rdma_mr->lkey;
383 cb->rdma_sq_wr.send_flags = IB_SEND_SIGNALED;
384 cb->rdma_sq_wr.sg_list = &cb->rdma_sgl;
385 cb->rdma_sq_wr.num_sge = 1;
387 if (!cb->server || cb->wlat || cb->rlat || cb->bw) {
388 cb->start_addr = vtophys(cb->start_buf);
392 static int krping_setup_buffers(struct krping_cb *cb)
395 struct ib_phys_buf buf;
398 DEBUG_LOG(PFX "krping_setup_buffers called on cb %p\n", cb);
401 cb->dma_mr = ib_get_dma_mr(cb->pd, IB_ACCESS_LOCAL_WRITE|
402 IB_ACCESS_REMOTE_READ|
403 IB_ACCESS_REMOTE_WRITE);
404 if (IS_ERR(cb->dma_mr)) {
405 log(LOG_ERR, "reg_dmamr failed\n");
406 return PTR_ERR(cb->dma_mr);
410 buf.addr = vtophys(&cb->recv_buf);
411 buf.size = sizeof cb->recv_buf;
412 iovbase = vtophys(&cb->recv_buf);
413 cb->recv_mr = ib_reg_phys_mr(cb->pd, &buf, 1,
414 IB_ACCESS_LOCAL_WRITE,
417 if (IS_ERR(cb->recv_mr)) {
418 log(LOG_ERR, "recv_buf reg_mr failed\n");
419 return PTR_ERR(cb->recv_mr);
422 buf.addr = vtophys(&cb->send_buf);
423 buf.size = sizeof cb->send_buf;
424 iovbase = vtophys(&cb->send_buf);
425 cb->send_mr = ib_reg_phys_mr(cb->pd, &buf, 1,
428 if (IS_ERR(cb->send_mr)) {
429 log(LOG_ERR, "send_buf reg_mr failed\n");
430 ib_dereg_mr(cb->recv_mr);
431 return PTR_ERR(cb->send_mr);
435 cb->rdma_buf = contigmalloc(cb->size, M_DEVBUF, M_WAITOK, 0, -1UL,
439 log(LOG_ERR, "rdma_buf malloc failed\n");
443 if (!cb->use_dmamr) {
445 buf.addr = vtophys(cb->rdma_buf);
447 iovbase = vtophys(cb->rdma_buf);
448 cb->rdma_mr = ib_reg_phys_mr(cb->pd, &buf, 1,
449 IB_ACCESS_REMOTE_READ|
450 IB_ACCESS_REMOTE_WRITE,
453 if (IS_ERR(cb->rdma_mr)) {
454 log(LOG_ERR, "rdma_buf reg_mr failed\n");
455 ret = PTR_ERR(cb->rdma_mr);
460 if (!cb->server || cb->wlat || cb->rlat || cb->bw) {
461 cb->start_buf = contigmalloc(cb->size, M_DEVBUF, M_WAITOK,
462 0, -1UL, PAGE_SIZE, 0);
463 if (!cb->start_buf) {
464 log(LOG_ERR, "start_buf malloc failed\n");
468 if (!cb->use_dmamr) {
469 unsigned flags = IB_ACCESS_REMOTE_READ;
471 if (cb->wlat || cb->rlat || cb->bw)
472 flags |= IB_ACCESS_REMOTE_WRITE;
473 buf.addr = vtophys(cb->start_buf);
475 iovbase = vtophys(cb->start_buf);
476 cb->start_mr = ib_reg_phys_mr(cb->pd, &buf, 1,
480 if (IS_ERR(cb->start_mr)) {
481 log(LOG_ERR, "start_buf reg_mr failed\n");
482 ret = PTR_ERR(cb->start_mr);
489 DEBUG_LOG(PFX "allocated & registered buffers...\n");
492 contigfree(cb->start_buf, cb->size, M_DEVBUF);
495 ib_dereg_mr(cb->rdma_mr);
497 contigfree(cb->rdma_buf, cb->size, M_DEVBUF);
500 ib_dereg_mr(cb->dma_mr);
502 ib_dereg_mr(cb->recv_mr);
503 ib_dereg_mr(cb->send_mr);
508 static void krping_free_buffers(struct krping_cb *cb)
510 DEBUG_LOG(PFX "krping_free_buffers called on cb %p\n", cb);
513 dma_unmap_single(cb->pd->device->dma_device,
514 pci_unmap_addr(cb, recv_mapping),
515 sizeof(cb->recv_buf), DMA_BIDIRECTIONAL);
516 dma_unmap_single(cb->pd->device->dma_device,
517 pci_unmap_addr(cb, send_mapping),
518 sizeof(cb->send_buf), DMA_BIDIRECTIONAL);
519 dma_unmap_single(cb->pd->device->dma_device,
520 pci_unmap_addr(cb, rdma_mapping),
521 cb->size, DMA_BIDIRECTIONAL);
523 contigfree(cb->rdma_buf, cb->size, M_DEVBUF);
524 if (!cb->server || cb->wlat || cb->rlat || cb->bw) {
526 dma_unmap_single(cb->pd->device->dma_device,
527 pci_unmap_addr(cb, start_mapping),
528 cb->size, DMA_BIDIRECTIONAL);
530 contigfree(cb->start_buf, cb->size, M_DEVBUF);
533 ib_dereg_mr(cb->dma_mr);
535 ib_dereg_mr(cb->send_mr);
536 ib_dereg_mr(cb->recv_mr);
537 ib_dereg_mr(cb->rdma_mr);
539 ib_dereg_mr(cb->start_mr);
543 static int krping_create_qp(struct krping_cb *cb)
545 struct ib_qp_init_attr init_attr;
548 memset(&init_attr, 0, sizeof(init_attr));
549 init_attr.cap.max_send_wr = cb->txdepth;
550 init_attr.cap.max_recv_wr = 2;
551 init_attr.cap.max_recv_sge = 1;
552 init_attr.cap.max_send_sge = 1;
553 init_attr.qp_type = IB_QPT_RC;
554 init_attr.send_cq = cb->cq;
555 init_attr.recv_cq = cb->cq;
558 ret = rdma_create_qp(cb->child_cm_id, cb->pd, &init_attr);
560 cb->qp = cb->child_cm_id->qp;
562 ret = rdma_create_qp(cb->cm_id, cb->pd, &init_attr);
564 cb->qp = cb->cm_id->qp;
570 static void krping_free_qp(struct krping_cb *cb)
572 ib_destroy_qp(cb->qp);
573 ib_destroy_cq(cb->cq);
574 ib_dealloc_pd(cb->pd);
577 static int krping_setup_qp(struct krping_cb *cb, struct rdma_cm_id *cm_id)
580 cb->pd = ib_alloc_pd(cm_id->device);
581 if (IS_ERR(cb->pd)) {
582 log(LOG_ERR, "ib_alloc_pd failed\n");
583 return PTR_ERR(cb->pd);
585 DEBUG_LOG(PFX "created pd %p\n", cb->pd);
587 cb->cq = ib_create_cq(cm_id->device, krping_cq_event_handler, NULL,
588 cb, cb->txdepth * 2, 0);
589 if (IS_ERR(cb->cq)) {
590 log(LOG_ERR, "ib_create_cq failed\n");
591 ret = PTR_ERR(cb->cq);
594 DEBUG_LOG(PFX "created cq %p\n", cb->cq);
596 if (!cb->wlat && !cb->rlat && !cb->bw) {
597 ret = ib_req_notify_cq(cb->cq, IB_CQ_NEXT_COMP);
599 log(LOG_ERR, "ib_create_cq failed\n");
604 ret = krping_create_qp(cb);
606 log(LOG_ERR, "krping_create_qp failed: %d\n", ret);
609 DEBUG_LOG(PFX "created qp %p\n", cb->qp);
612 ib_destroy_cq(cb->cq);
614 ib_dealloc_pd(cb->pd);
618 static void krping_format_send(struct krping_cb *cb, u64 buf,
621 struct krping_rdma_info *info = &cb->send_buf;
623 info->buf = htonll(buf);
624 info->rkey = htonl(mr->rkey);
625 info->size = htonl(cb->size);
627 DEBUG_LOG(PFX "RDMA addr %llx rkey %x len %d\n",
628 (unsigned long long)buf, mr->rkey, cb->size);
631 static void krping_test_server(struct krping_cb *cb)
633 struct ib_send_wr *bad_wr;
637 /* Wait for client's Start STAG/TO/Len */
638 krping_wait(cb, RDMA_READ_ADV);
639 if (cb->state != RDMA_READ_ADV) {
640 DEBUG_LOG(PFX "wait for RDMA_READ_ADV state %d\n",
645 DEBUG_LOG(PFX "server received sink adv\n");
647 /* Issue RDMA Read. */
648 cb->rdma_sq_wr.opcode = IB_WR_RDMA_READ;
649 cb->rdma_sq_wr.wr.rdma.rkey = cb->remote_rkey;
650 cb->rdma_sq_wr.wr.rdma.remote_addr = cb->remote_addr;
651 cb->rdma_sq_wr.sg_list->length = cb->remote_len;
653 ret = ib_post_send(cb->qp, &cb->rdma_sq_wr, &bad_wr);
655 log(LOG_ERR, "post send error %d\n", ret);
658 DEBUG_LOG(PFX "server posted rdma read req \n");
660 /* Wait for read completion */
661 krping_wait(cb, RDMA_READ_COMPLETE);
662 if (cb->state != RDMA_READ_COMPLETE) {
664 "wait for RDMA_READ_COMPLETE state %d\n",
668 DEBUG_LOG(PFX "server received read complete\n");
670 /* Display data in recv buf */
672 DEBUG_LOG("server ping data: %s\n", cb->rdma_buf);
674 /* Tell client to continue */
675 ret = ib_post_send(cb->qp, &cb->sq_wr, &bad_wr);
677 log(LOG_ERR, "post send error %d\n", ret);
680 DEBUG_LOG(PFX "server posted go ahead\n");
682 /* Wait for client's RDMA STAG/TO/Len */
683 krping_wait(cb, RDMA_WRITE_ADV);
684 if (cb->state != RDMA_WRITE_ADV) {
686 "wait for RDMA_WRITE_ADV state %d\n",
690 DEBUG_LOG(PFX "server received sink adv\n");
692 /* RDMA Write echo data */
693 cb->rdma_sq_wr.opcode = IB_WR_RDMA_WRITE;
694 cb->rdma_sq_wr.wr.rdma.rkey = cb->remote_rkey;
695 cb->rdma_sq_wr.wr.rdma.remote_addr = cb->remote_addr;
696 cb->rdma_sq_wr.sg_list->length = strlen(cb->rdma_buf) + 1;
697 DEBUG_LOG(PFX "rdma write from lkey %x laddr %llx len %d\n",
698 cb->rdma_sq_wr.sg_list->lkey,
699 (unsigned long long)cb->rdma_sq_wr.sg_list->addr,
700 cb->rdma_sq_wr.sg_list->length);
702 ret = ib_post_send(cb->qp, &cb->rdma_sq_wr, &bad_wr);
704 log(LOG_ERR, "post send error %d\n", ret);
708 /* Wait for completion */
709 krping_wait(cb, RDMA_WRITE_COMPLETE);
710 if (cb->state != RDMA_WRITE_COMPLETE) {
712 "wait for RDMA_WRITE_COMPLETE state %d\n",
716 DEBUG_LOG(PFX "server rdma write complete \n");
718 cb->state = CONNECTED;
720 /* Tell client to begin again */
721 ret = ib_post_send(cb->qp, &cb->sq_wr, &bad_wr);
723 log(LOG_ERR, "post send error %d\n", ret);
726 DEBUG_LOG(PFX "server posted go ahead\n");
730 static void rlat_test(struct krping_cb *cb)
733 int iters = cb->count;
734 struct timeval start_tv, stop_tv;
737 struct ib_send_wr *bad_wr;
741 cb->rdma_sq_wr.opcode = IB_WR_RDMA_READ;
742 cb->rdma_sq_wr.wr.rdma.rkey = cb->remote_rkey;
743 cb->rdma_sq_wr.wr.rdma.remote_addr = cb->remote_addr;
744 cb->rdma_sq_wr.sg_list->length = cb->size;
746 microtime(&start_tv);
748 cb->state = RDMA_READ_ADV;
749 ib_req_notify_cq(cb->cq, IB_CQ_NEXT_COMP);
751 while (scnt < iters) {
753 cb->state = RDMA_READ_ADV;
754 ret = ib_post_send(cb->qp, &cb->rdma_sq_wr, &bad_wr);
757 "Couldn't post send: ret=%d scnt %d\n",
764 krping_wait(cb, RDMA_READ_COMPLETE);
765 if (cb->state == RDMA_READ_COMPLETE) {
767 ib_req_notify_cq(cb->cq, IB_CQ_NEXT_COMP);
772 ne = ib_poll_cq(cb->cq, 1, &wc);
773 if (cb->state == ERROR) {
775 "state == ERROR...bailing scnt %d\n", scnt);
781 log(LOG_ERR, "poll CQ failed %d\n", ne);
784 if (cb->poll && wc.status != IB_WC_SUCCESS) {
785 log(LOG_ERR, "Completion wth error at %s:\n",
786 cb->server ? "server" : "client");
787 log(LOG_ERR, "Failed status %d: wr_id %d\n",
788 wc.status, (int) wc.wr_id);
795 if (stop_tv.tv_usec < start_tv.tv_usec) {
796 stop_tv.tv_usec += 1000000;
800 log(LOG_ERR, "delta sec %zu delta usec %lu iter %d size %d\n",
801 stop_tv.tv_sec - start_tv.tv_sec,
802 stop_tv.tv_usec - start_tv.tv_usec,
806 static int alloc_cycle_mem(int cycle_iters,
807 cycles_t **post_cycles_start,
808 cycles_t **post_cycles_stop,
809 cycles_t **poll_cycles_start,
810 cycles_t **poll_cycles_stop,
811 cycles_t **last_poll_cycles_start)
813 *post_cycles_start = malloc(cycle_iters * sizeof(cycles_t), M_DEVBUF, M_WAITOK);
814 if (!*post_cycles_start) {
817 *post_cycles_stop = malloc(cycle_iters * sizeof(cycles_t), M_DEVBUF, M_WAITOK);
818 if (!*post_cycles_stop) {
821 *poll_cycles_start = malloc(cycle_iters * sizeof(cycles_t), M_DEVBUF, M_WAITOK);
822 if (!*poll_cycles_start) {
825 *poll_cycles_stop = malloc(cycle_iters * sizeof(cycles_t), M_DEVBUF, M_WAITOK);
826 if (!*poll_cycles_stop) {
829 *last_poll_cycles_start = malloc(cycle_iters * sizeof(cycles_t), M_DEVBUF, M_WAITOK);
830 if (!*last_poll_cycles_start) {
835 free(*poll_cycles_stop, M_DEVBUF);
837 free(*poll_cycles_start, M_DEVBUF);
839 free(*post_cycles_stop, M_DEVBUF);
841 free(*post_cycles_start, M_DEVBUF);
843 log(LOG_ERR, "%s malloc failed\n", __FUNCTION__);
847 static void free_cycle_mem(cycles_t *post_cycles_start,
848 cycles_t *post_cycles_stop,
849 cycles_t *poll_cycles_start,
850 cycles_t *poll_cycles_stop,
851 cycles_t *last_poll_cycles_start)
853 free(last_poll_cycles_start, M_DEVBUF);
854 free(poll_cycles_stop, M_DEVBUF);
855 free(poll_cycles_start, M_DEVBUF);
856 free(post_cycles_stop, M_DEVBUF);
857 free(post_cycles_start, M_DEVBUF);
860 static void wlat_test(struct krping_cb *cb)
862 int ccnt, scnt, rcnt;
864 volatile char *poll_buf = (char *) cb->start_buf;
865 char *buf = (char *)cb->rdma_buf;
869 struct timeval start_tv, stop_tv;
870 cycles_t *post_cycles_start, *post_cycles_stop;
871 cycles_t *poll_cycles_start, *poll_cycles_stop;
872 cycles_t *last_poll_cycles_start;
873 cycles_t sum_poll = 0, sum_post = 0, sum_last_poll = 0;
875 int cycle_iters = 1000;
878 err = alloc_cycle_mem(cycle_iters, &post_cycles_start, &post_cycles_stop,
879 &poll_cycles_start, &poll_cycles_stop, &last_poll_cycles_start);
882 log(LOG_ERR, "%s malloc failed\n", __FUNCTION__);
886 cb->rdma_sq_wr.opcode = IB_WR_RDMA_WRITE;
887 cb->rdma_sq_wr.wr.rdma.rkey = cb->remote_rkey;
888 cb->rdma_sq_wr.wr.rdma.remote_addr = cb->remote_addr;
889 cb->rdma_sq_wr.sg_list->length = cb->size;
891 if (cycle_iters > iters)
893 microtime(&start_tv);
894 while (scnt < iters || ccnt < iters || rcnt < iters) {
896 /* Wait till buffer changes. */
897 if (rcnt < iters && !(scnt < 1 && !cb->server)) {
899 while (*poll_buf != (char)rcnt) {
900 if (cb->state == ERROR) {
901 log(LOG_ERR, "state = ERROR, bailing\n");
908 struct ib_send_wr *bad_wr;
911 if (scnt < cycle_iters)
912 post_cycles_start[scnt] = get_cycles();
913 if (ib_post_send(cb->qp, &cb->rdma_sq_wr, &bad_wr)) {
914 log(LOG_ERR, "Couldn't post send: scnt=%d\n",
918 if (scnt < cycle_iters)
919 post_cycles_stop[scnt] = get_cycles();
927 if (ccnt < cycle_iters)
928 poll_cycles_start[ccnt] = get_cycles();
930 if (ccnt < cycle_iters)
931 last_poll_cycles_start[ccnt] = get_cycles();
932 ne = ib_poll_cq(cb->cq, 1, &wc);
934 if (ccnt < cycle_iters)
935 poll_cycles_stop[ccnt] = get_cycles();
939 log(LOG_ERR, "poll CQ failed %d\n", ne);
942 if (wc.status != IB_WC_SUCCESS) {
943 log(LOG_ERR, "Completion wth error at %s:\n",
944 cb->server ? "server" : "client");
945 log(LOG_ERR, "Failed status %d: wr_id %d\n",
946 wc.status, (int) wc.wr_id);
947 log(LOG_ERR, "scnt=%d, rcnt=%d, ccnt=%d\n",
955 if (stop_tv.tv_usec < start_tv.tv_usec) {
956 stop_tv.tv_usec += 1000000;
960 for (i=0; i < cycle_iters; i++) {
961 sum_post += post_cycles_stop[i] - post_cycles_start[i];
962 sum_poll += poll_cycles_stop[i] - poll_cycles_start[i];
963 sum_last_poll += poll_cycles_stop[i] - last_poll_cycles_start[i];
966 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",
967 stop_tv.tv_sec - start_tv.tv_sec,
968 stop_tv.tv_usec - start_tv.tv_usec,
969 scnt, cb->size, cycle_iters,
970 (unsigned long long)sum_post, (unsigned long long)sum_poll,
971 (unsigned long long)sum_last_poll);
973 free_cycle_mem(post_cycles_start, post_cycles_stop, poll_cycles_start,
974 poll_cycles_stop, last_poll_cycles_start);
977 static void bw_test(struct krping_cb *cb)
979 int ccnt, scnt, rcnt;
984 struct timeval start_tv, stop_tv;
985 cycles_t *post_cycles_start, *post_cycles_stop;
986 cycles_t *poll_cycles_start, *poll_cycles_stop;
987 cycles_t *last_poll_cycles_start;
988 cycles_t sum_poll = 0, sum_post = 0, sum_last_poll = 0;
990 int cycle_iters = 1000;
993 err = alloc_cycle_mem(cycle_iters, &post_cycles_start, &post_cycles_stop,
994 &poll_cycles_start, &poll_cycles_stop, &last_poll_cycles_start);
997 log(LOG_ERR, "%s kmalloc failed\n", __FUNCTION__);
1001 cb->rdma_sq_wr.opcode = IB_WR_RDMA_WRITE;
1002 cb->rdma_sq_wr.wr.rdma.rkey = cb->remote_rkey;
1003 cb->rdma_sq_wr.wr.rdma.remote_addr = cb->remote_addr;
1004 cb->rdma_sq_wr.sg_list->length = cb->size;
1006 if (cycle_iters > iters)
1007 cycle_iters = iters;
1008 microtime(&start_tv);
1009 while (scnt < iters || ccnt < iters) {
1011 while (scnt < iters && scnt - ccnt < cb->txdepth) {
1012 struct ib_send_wr *bad_wr;
1014 if (scnt < cycle_iters)
1015 post_cycles_start[scnt] = get_cycles();
1016 if (ib_post_send(cb->qp, &cb->rdma_sq_wr, &bad_wr)) {
1017 log(LOG_ERR, "Couldn't post send: scnt=%d\n",
1021 if (scnt < cycle_iters)
1022 post_cycles_stop[scnt] = get_cycles();
1030 if (ccnt < cycle_iters)
1031 poll_cycles_start[ccnt] = get_cycles();
1033 if (ccnt < cycle_iters)
1034 last_poll_cycles_start[ccnt] = get_cycles();
1035 ne = ib_poll_cq(cb->cq, 1, &wc);
1037 if (ccnt < cycle_iters)
1038 poll_cycles_stop[ccnt] = get_cycles();
1042 log(LOG_ERR, "poll CQ failed %d\n", ne);
1045 if (wc.status != IB_WC_SUCCESS) {
1046 log(LOG_ERR, "Completion wth error at %s:\n",
1047 cb->server ? "server" : "client");
1048 log(LOG_ERR, "Failed status %d: wr_id %d\n",
1049 wc.status, (int) wc.wr_id);
1054 microtime(&stop_tv);
1056 if (stop_tv.tv_usec < start_tv.tv_usec) {
1057 stop_tv.tv_usec += 1000000;
1058 stop_tv.tv_sec -= 1;
1061 for (i=0; i < cycle_iters; i++) {
1062 sum_post += post_cycles_stop[i] - post_cycles_start[i];
1063 sum_poll += poll_cycles_stop[i] - poll_cycles_start[i];
1064 sum_last_poll += poll_cycles_stop[i] - last_poll_cycles_start[i];
1067 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",
1068 stop_tv.tv_sec - start_tv.tv_sec,
1069 stop_tv.tv_usec - start_tv.tv_usec,
1070 scnt, cb->size, cycle_iters,
1071 (unsigned long long)sum_post, (unsigned long long)sum_poll,
1072 (unsigned long long)sum_last_poll);
1074 free_cycle_mem(post_cycles_start, post_cycles_stop, poll_cycles_start,
1075 poll_cycles_stop, last_poll_cycles_start);
1078 static void krping_rlat_test_server(struct krping_cb *cb)
1080 struct ib_send_wr *bad_wr;
1084 /* Spin waiting for client's Start STAG/TO/Len */
1085 while (cb->state < RDMA_READ_ADV) {
1086 krping_cq_event_handler(cb->cq, cb);
1089 /* Send STAG/TO/Len to client */
1091 krping_format_send(cb, cb->start_addr, cb->dma_mr);
1093 krping_format_send(cb, cb->start_addr, cb->start_mr);
1094 ret = ib_post_send(cb->qp, &cb->sq_wr, &bad_wr);
1096 log(LOG_ERR, "post send error %d\n", ret);
1100 /* Spin waiting for send completion */
1101 while ((ret = ib_poll_cq(cb->cq, 1, &wc) == 0));
1103 log(LOG_ERR, "poll error %d\n", ret);
1107 log(LOG_ERR, "send completiong error %d\n", wc.status);
1111 krping_wait(cb, ERROR);
1114 static void krping_wlat_test_server(struct krping_cb *cb)
1116 struct ib_send_wr *bad_wr;
1120 /* Spin waiting for client's Start STAG/TO/Len */
1121 while (cb->state < RDMA_READ_ADV) {
1122 krping_cq_event_handler(cb->cq, cb);
1125 /* Send STAG/TO/Len to client */
1127 krping_format_send(cb, cb->start_addr, cb->dma_mr);
1129 krping_format_send(cb, cb->start_addr, cb->start_mr);
1130 ret = ib_post_send(cb->qp, &cb->sq_wr, &bad_wr);
1132 log(LOG_ERR, "post send error %d\n", ret);
1136 /* Spin waiting for send completion */
1137 while ((ret = ib_poll_cq(cb->cq, 1, &wc) == 0));
1139 log(LOG_ERR, "poll error %d\n", ret);
1143 log(LOG_ERR, "send completiong error %d\n", wc.status);
1151 static void krping_bw_test_server(struct krping_cb *cb)
1153 struct ib_send_wr *bad_wr;
1157 /* Spin waiting for client's Start STAG/TO/Len */
1158 while (cb->state < RDMA_READ_ADV) {
1159 krping_cq_event_handler(cb->cq, cb);
1162 /* Send STAG/TO/Len to client */
1164 krping_format_send(cb, cb->start_addr, cb->dma_mr);
1166 krping_format_send(cb, cb->start_addr, cb->start_mr);
1167 ret = ib_post_send(cb->qp, &cb->sq_wr, &bad_wr);
1169 log(LOG_ERR, "post send error %d\n", ret);
1173 /* Spin waiting for send completion */
1174 while ((ret = ib_poll_cq(cb->cq, 1, &wc) == 0));
1176 log(LOG_ERR, "poll error %d\n", ret);
1180 log(LOG_ERR, "send completiong error %d\n", wc.status);
1186 krping_wait(cb, ERROR);
1189 static int krping_bind_server(struct krping_cb *cb)
1191 struct sockaddr_in sin;
1194 memset(&sin, 0, sizeof(sin));
1195 sin.sin_len = sizeof sin;
1196 sin.sin_family = AF_INET;
1197 sin.sin_addr.s_addr = cb->addr.s_addr;
1198 sin.sin_port = cb->port;
1200 ret = rdma_bind_addr(cb->cm_id, (struct sockaddr *) &sin);
1202 log(LOG_ERR, "rdma_bind_addr error %d\n", ret);
1205 DEBUG_LOG(PFX "rdma_bind_addr successful\n");
1207 DEBUG_LOG(PFX "rdma_listen\n");
1208 ret = rdma_listen(cb->cm_id, 3);
1210 log(LOG_ERR, "rdma_listen failed: %d\n", ret);
1214 krping_wait(cb, CONNECT_REQUEST);
1215 if (cb->state != CONNECT_REQUEST) {
1216 log(LOG_ERR, "wait for CONNECT_REQUEST state %d\n",
1224 static void krping_run_server(struct krping_cb *cb)
1226 struct ib_recv_wr *bad_wr;
1229 ret = krping_bind_server(cb);
1233 ret = krping_setup_qp(cb, cb->child_cm_id);
1235 log(LOG_ERR, "setup_qp failed: %d\n", ret);
1239 ret = krping_setup_buffers(cb);
1241 log(LOG_ERR, "krping_setup_buffers failed: %d\n", ret);
1245 ret = ib_post_recv(cb->qp, &cb->rq_wr, &bad_wr);
1247 log(LOG_ERR, "ib_post_recv failed: %d\n", ret);
1251 ret = krping_accept(cb);
1253 log(LOG_ERR, "connect error %d\n", ret);
1258 krping_wlat_test_server(cb);
1260 krping_rlat_test_server(cb);
1262 krping_bw_test_server(cb);
1264 krping_test_server(cb);
1266 rdma_disconnect(cb->child_cm_id);
1267 rdma_destroy_id(cb->child_cm_id);
1269 krping_free_buffers(cb);
1274 static void krping_test_client(struct krping_cb *cb)
1276 int ping, start, cc, i, ret;
1277 struct ib_send_wr *bad_wr;
1281 for (ping = 0; !cb->count || ping < cb->count; ping++) {
1282 cb->state = RDMA_READ_ADV;
1284 /* Put some ascii text in the buffer. */
1285 cc = sprintf(cb->start_buf, "rdma-ping-%d: ", ping);
1286 for (i = cc, c = start; i < cb->size; i++) {
1287 cb->start_buf[i] = c;
1295 cb->start_buf[cb->size - 1] = 0;
1298 krping_format_send(cb, cb->start_addr, cb->dma_mr);
1300 krping_format_send(cb, cb->start_addr, cb->start_mr);
1302 ret = ib_post_send(cb->qp, &cb->sq_wr, &bad_wr);
1304 log(LOG_ERR, "post send error %d\n", ret);
1308 /* Wait for server to ACK */
1309 krping_wait(cb, RDMA_WRITE_ADV);
1310 if (cb->state != RDMA_WRITE_ADV) {
1312 "wait for RDMA_WRITE_ADV state %d\n",
1318 krping_format_send(cb, cb->rdma_addr, cb->dma_mr);
1320 krping_format_send(cb, cb->rdma_addr, cb->rdma_mr);
1322 ret = ib_post_send(cb->qp, &cb->sq_wr, &bad_wr);
1324 log(LOG_ERR, "post send error %d\n", ret);
1328 /* Wait for the server to say the RDMA Write is complete. */
1329 krping_wait(cb, RDMA_WRITE_COMPLETE);
1330 if (cb->state != RDMA_WRITE_COMPLETE) {
1332 "wait for RDMA_WRITE_COMPLETE state %d\n",
1338 if (memcmp(cb->start_buf, cb->rdma_buf, cb->size)) {
1339 log(LOG_ERR, "data mismatch!\n");
1344 DEBUG_LOG("ping data: %s\n", cb->rdma_buf);
1348 static void krping_rlat_test_client(struct krping_cb *cb)
1350 struct ib_send_wr *bad_wr;
1354 cb->state = RDMA_READ_ADV;
1356 /* Send STAG/TO/Len to client */
1358 krping_format_send(cb, cb->start_addr, cb->dma_mr);
1360 krping_format_send(cb, cb->start_addr, cb->rdma_mr);
1361 ret = ib_post_send(cb->qp, &cb->sq_wr, &bad_wr);
1363 log(LOG_ERR, "post send error %d\n", ret);
1367 /* Spin waiting for send completion */
1368 while ((ret = ib_poll_cq(cb->cq, 1, &wc) == 0));
1370 log(LOG_ERR, "poll error %d\n", ret);
1374 log(LOG_ERR, "send completion error %d\n", wc.status);
1378 /* Spin waiting for server's Start STAG/TO/Len */
1379 while (cb->state < RDMA_WRITE_ADV) {
1380 krping_cq_event_handler(cb->cq, cb);
1386 struct timeval start, stop;
1389 unsigned long long elapsed;
1391 struct ib_send_wr *bad_wr;
1394 cb->rdma_sq_wr.opcode = IB_WR_RDMA_WRITE;
1395 cb->rdma_sq_wr.wr.rdma.rkey = cb->remote_rkey;
1396 cb->rdma_sq_wr.wr.rdma.remote_addr = cb->remote_addr;
1397 cb->rdma_sq_wr.sg_list->length = 0;
1398 cb->rdma_sq_wr.num_sge = 0;
1401 for (i=0; i < 100000; i++) {
1402 if (ib_post_send(cb->qp, &cb->rdma_sq_wr, &bad_wr)) {
1403 log(LOG_ERR, "Couldn't post send\n");
1407 ne = ib_poll_cq(cb->cq, 1, &wc);
1410 log(LOG_ERR, "poll CQ failed %d\n", ne);
1413 if (wc.status != IB_WC_SUCCESS) {
1414 log(LOG_ERR, "Completion wth error at %s:\n",
1415 cb->server ? "server" : "client");
1416 log(LOG_ERR, "Failed status %d: wr_id %d\n",
1417 wc.status, (int) wc.wr_id);
1423 if (stop.tv_usec < start.tv_usec) {
1424 stop.tv_usec += 1000000;
1427 sec = stop.tv_sec - start.tv_sec;
1428 usec = stop.tv_usec - start.tv_usec;
1429 elapsed = sec * 1000000 + usec;
1430 log(LOG_ERR, "0B-write-lat iters 100000 usec %llu\n", elapsed);
1437 static void krping_wlat_test_client(struct krping_cb *cb)
1439 struct ib_send_wr *bad_wr;
1443 cb->state = RDMA_READ_ADV;
1445 /* Send STAG/TO/Len to client */
1447 krping_format_send(cb, cb->start_addr, cb->dma_mr);
1449 krping_format_send(cb, cb->start_addr, cb->start_mr);
1450 ret = ib_post_send(cb->qp, &cb->sq_wr, &bad_wr);
1452 log(LOG_ERR, "post send error %d\n", ret);
1456 /* Spin waiting for send completion */
1457 while ((ret = ib_poll_cq(cb->cq, 1, &wc) == 0));
1459 log(LOG_ERR, "poll error %d\n", ret);
1463 log(LOG_ERR, "send completion error %d\n", wc.status);
1467 /* Spin waiting for server's Start STAG/TO/Len */
1468 while (cb->state < RDMA_WRITE_ADV) {
1469 krping_cq_event_handler(cb->cq, cb);
1475 static void krping_bw_test_client(struct krping_cb *cb)
1477 struct ib_send_wr *bad_wr;
1481 cb->state = RDMA_READ_ADV;
1483 /* Send STAG/TO/Len to client */
1485 krping_format_send(cb, cb->start_addr, cb->dma_mr);
1487 krping_format_send(cb, cb->start_addr, cb->start_mr);
1488 ret = ib_post_send(cb->qp, &cb->sq_wr, &bad_wr);
1490 log(LOG_ERR, "post send error %d\n", ret);
1494 /* Spin waiting for send completion */
1495 while ((ret = ib_poll_cq(cb->cq, 1, &wc) == 0));
1497 log(LOG_ERR, "poll error %d\n", ret);
1501 log(LOG_ERR, "send completion error %d\n", wc.status);
1505 /* Spin waiting for server's Start STAG/TO/Len */
1506 while (cb->state < RDMA_WRITE_ADV) {
1507 krping_cq_event_handler(cb->cq, cb);
1513 static int krping_connect_client(struct krping_cb *cb)
1515 struct rdma_conn_param conn_param;
1518 memset(&conn_param, 0, sizeof conn_param);
1519 conn_param.responder_resources = 1;
1520 conn_param.initiator_depth = 1;
1521 conn_param.retry_count = 10;
1523 ret = rdma_connect(cb->cm_id, &conn_param);
1525 log(LOG_ERR, "rdma_connect error %d\n", ret);
1529 krping_wait(cb, CONNECTED);
1530 if (cb->state == ERROR) {
1531 log(LOG_ERR, "wait for CONNECTED state %d\n", cb->state);
1535 DEBUG_LOG(PFX "rdma_connect successful\n");
1539 static int krping_bind_client(struct krping_cb *cb)
1541 struct sockaddr_in sin;
1544 memset(&sin, 0, sizeof(sin));
1545 sin.sin_len = sizeof sin;
1546 sin.sin_family = AF_INET;
1547 sin.sin_addr.s_addr = cb->addr.s_addr;
1548 sin.sin_port = cb->port;
1550 ret = rdma_resolve_addr(cb->cm_id, NULL, (struct sockaddr *) &sin,
1553 log(LOG_ERR, "rdma_resolve_addr error %d\n", ret);
1557 krping_wait(cb, ROUTE_RESOLVED);
1558 if (cb->state != ROUTE_RESOLVED) {
1560 "addr/route resolution did not resolve: state %d\n",
1565 DEBUG_LOG(PFX "rdma_resolve_addr - rdma_resolve_route successful\n");
1569 static void krping_run_client(struct krping_cb *cb)
1571 struct ib_recv_wr *bad_wr;
1574 ret = krping_bind_client(cb);
1578 ret = krping_setup_qp(cb, cb->cm_id);
1580 log(LOG_ERR, "setup_qp failed: %d\n", ret);
1584 ret = krping_setup_buffers(cb);
1586 log(LOG_ERR, "krping_setup_buffers failed: %d\n", ret);
1590 ret = ib_post_recv(cb->qp, &cb->rq_wr, &bad_wr);
1592 log(LOG_ERR, "ib_post_recv failed: %d\n", ret);
1596 ret = krping_connect_client(cb);
1598 log(LOG_ERR, "connect error %d\n", ret);
1603 krping_wlat_test_client(cb);
1605 krping_rlat_test_client(cb);
1607 krping_bw_test_client(cb);
1609 krping_test_client(cb);
1610 rdma_disconnect(cb->cm_id);
1612 krping_free_buffers(cb);
1617 int krping_doit(char *cmd)
1619 struct krping_cb *cb;
1623 unsigned long optint;
1626 cb = malloc(sizeof(*cb), M_DEVBUF, M_WAITOK);
1629 bzero(cb, sizeof *cb);
1631 mtx_lock(&krping_mutex);
1632 TAILQ_INSERT_TAIL(&krping_cbs, cb, list);
1633 mtx_unlock(&krping_mutex);
1638 cb->txdepth = RPING_SQ_DEPTH;
1639 mtx_init(&cb->lock, "krping mtx", NULL, MTX_DUPOK|MTX_DEF);
1641 while ((op = krping_getopt("krping", &cmd, krping_opts, NULL, &optarg,
1645 cb->addr_str = optarg;
1646 DEBUG_LOG(PFX "ipaddr (%s)\n", optarg);
1647 if (!inet_aton(optarg, &cb->addr)) {
1648 log(LOG_ERR, "bad addr string %s\n", optarg);
1654 DEBUG_LOG(PFX "using dma mr\n");
1657 cb->port = htons(optint);
1658 DEBUG_LOG(PFX "port %d\n", (int)optint);
1662 DEBUG_LOG("server\n");
1666 DEBUG_LOG(PFX "server\n");
1670 DEBUG_LOG(PFX "client\n");
1674 if ((cb->size < 1) ||
1675 (cb->size > RPING_BUFSIZE)) {
1676 log(LOG_ERR, "Invalid size %d "
1677 "(valid range is 1 to %d)\n",
1678 cb->size, RPING_BUFSIZE);
1681 DEBUG_LOG(PFX "size %d\n", (int)optint);
1685 if (cb->count < 0) {
1686 log(LOG_ERR, "Invalid count %d\n",
1690 DEBUG_LOG(PFX "count %d\n", (int) cb->count);
1694 DEBUG_LOG(PFX "verbose\n");
1698 DEBUG_LOG(PFX "validate data\n");
1710 cb->txdepth = optint;
1711 DEBUG_LOG(PFX "txdepth %d\n", cb->txdepth);
1717 log(LOG_ERR, "unknown opt %s\n", optarg);
1725 if (cb->server == -1) {
1726 log(LOG_ERR, "must be either client or server\n");
1730 if ((cb->bw + cb->rlat + cb->wlat) > 1) {
1731 log(LOG_ERR, "Pick only one test: bw, rlat, wlat\n");
1737 cb->cm_id = rdma_create_id(krping_cma_event_handler, cb, RDMA_PS_TCP);
1738 if (IS_ERR(cb->cm_id)) {
1739 ret = PTR_ERR(cb->cm_id);
1740 log(LOG_ERR, "rdma_create_id error %d\n", ret);
1743 DEBUG_LOG(PFX "created cm_id %p\n", cb->cm_id);
1745 krping_run_server(cb);
1747 krping_run_client(cb);
1748 DEBUG_LOG(PFX "destroy cm_id %p\n", cb->cm_id);
1749 rdma_destroy_id(cb->cm_id);
1751 mtx_lock(&krping_mutex);
1752 TAILQ_REMOVE(&krping_cbs, cb, list);
1753 mtx_unlock(&krping_mutex);
1758 void krping_init(void)
1760 mtx_init(&krping_mutex, "krping lock", NULL, MTX_DEF);
1761 TAILQ_INIT(&krping_cbs);