21b8aee8 |
1 | /* |
2 | * rdma engine |
3 | * |
4 | * RDMA IO engine using OFED library. |
5 | * Support both RDMA memory semantic and channel semantic |
6 | * in InfiniBand, RoCE and iWarp environment. |
7 | * |
8 | * This is currently disabled. To enable it, execute: |
9 | * |
10 | * $ export EXTFLAGS="-DFIO_HAVE_RDMA" |
11 | * $ export EXTLIBS="-libverbs -lrdmacm" |
12 | * |
13 | * before running make. You'll need the OFED as well: |
14 | * |
15 | * http://www.openfabrics.org/downloads/OFED/ |
16 | * |
17 | */ |
18 | #include <stdio.h> |
19 | #include <stdlib.h> |
20 | #include <unistd.h> |
21 | #include <errno.h> |
22 | #include <assert.h> |
23 | #include <netinet/in.h> |
24 | #include <arpa/inet.h> |
25 | #include <netdb.h> |
26 | #include <sys/poll.h> |
27 | #include <sys/types.h> |
28 | #include <sys/socket.h> |
29 | #include <sys/time.h> |
30 | #include <sys/resource.h> |
31 | |
32 | #include <byteswap.h> |
33 | #include <pthread.h> |
34 | #include <inttypes.h> |
35 | |
36 | #include "../fio.h" |
37 | |
38 | #ifdef FIO_HAVE_RDMA |
39 | |
40 | #include <rdma/rdma_cma.h> |
41 | #include <infiniband/arch.h> |
42 | |
43 | #define FIO_RDMA_MAX_IO_DPETH 128 |
44 | |
45 | enum rdma_io_mode { |
46 | FIO_RDMA_UNKNOWN = 0, |
47 | FIO_RDMA_MEM_WRITE, |
48 | FIO_RDMA_MEM_READ, |
49 | FIO_RDMA_CHA_SEND, |
50 | FIO_RDMA_CHA_RECV |
51 | }; |
52 | |
53 | struct remote_u { |
54 | uint64_t buf; |
55 | uint32_t rkey; |
56 | uint32_t size; |
57 | }; |
58 | |
59 | struct rdma_info_blk { |
60 | uint32_t mode; /* channel semantic or memory semantic */ |
61 | uint32_t nr; /* client: io depth |
62 | server: number of records for memory semantic |
63 | */ |
64 | struct remote_u rmt_us[FIO_RDMA_MAX_IO_DPETH]; |
65 | }; |
66 | |
67 | struct rdma_io_u_data { |
68 | uint64_t wr_id; |
69 | struct ibv_send_wr sq_wr; |
70 | struct ibv_recv_wr rq_wr; |
71 | struct ibv_sge rdma_sgl; |
72 | }; |
73 | |
74 | struct rdmaio_data { |
75 | int is_client; |
76 | enum rdma_io_mode rdma_protocol; |
77 | char host[64]; |
78 | struct sockaddr_in addr; |
79 | |
80 | struct ibv_recv_wr rq_wr; |
81 | struct ibv_sge recv_sgl; |
82 | struct rdma_info_blk recv_buf; |
83 | struct ibv_mr *recv_mr; |
84 | |
85 | struct ibv_send_wr sq_wr; |
86 | struct ibv_sge send_sgl; |
87 | struct rdma_info_blk send_buf; |
88 | struct ibv_mr *send_mr; |
89 | |
90 | struct ibv_comp_channel *channel; |
91 | struct ibv_cq *cq; |
92 | struct ibv_pd *pd; |
93 | struct ibv_qp *qp; |
94 | |
95 | pthread_t cmthread; |
96 | struct rdma_event_channel *cm_channel; |
97 | struct rdma_cm_id *cm_id; |
98 | struct rdma_cm_id *child_cm_id; |
99 | |
100 | int cq_event_num; |
101 | |
102 | struct remote_u *rmt_us; |
103 | int rmt_nr; |
104 | struct io_u **io_us_queued; |
105 | int io_u_queued_nr; |
106 | struct io_u **io_us_flight; |
107 | int io_u_flight_nr; |
108 | struct io_u **io_us_completed; |
109 | int io_u_completed_nr; |
110 | }; |
111 | |
112 | static int client_recv(struct thread_data *td, struct ibv_wc *wc) |
113 | { |
114 | struct rdmaio_data *rd = td->io_ops->data; |
115 | |
116 | if (wc->byte_len != sizeof(rd->recv_buf)) { |
117 | fprintf(stderr, "Received bogus data, size %d\n", wc->byte_len); |
118 | return 1; |
119 | } |
120 | |
121 | /* store mr info for MEMORY semantic */ |
122 | if ((rd->rdma_protocol == FIO_RDMA_MEM_WRITE) || |
123 | (rd->rdma_protocol == FIO_RDMA_MEM_READ)) { |
124 | /* struct flist_head *entry; */ |
125 | int i = 0; |
126 | |
127 | rd->rmt_nr = ntohl(rd->recv_buf.nr); |
128 | |
129 | for (i = 0; i < rd->rmt_nr; i++) { |
130 | rd->rmt_us[i].buf = ntohll(rd->recv_buf.rmt_us[i].buf); |
131 | rd->rmt_us[i].rkey = ntohl(rd->recv_buf.rmt_us[i].rkey); |
132 | rd->rmt_us[i].size = ntohl(rd->recv_buf.rmt_us[i].size); |
133 | |
134 | dprint(FD_IO, |
135 | "fio: Received rkey %x addr %" PRIx64 |
136 | " len %d from peer\n", rd->rmt_us[i].rkey, |
137 | rd->rmt_us[i].buf, rd->rmt_us[i].size); |
138 | } |
139 | } |
140 | |
141 | return 0; |
142 | } |
143 | |
144 | static int server_recv(struct thread_data *td, struct ibv_wc *wc) |
145 | { |
146 | struct rdmaio_data *rd = td->io_ops->data; |
147 | |
148 | if (wc->wr_id == FIO_RDMA_MAX_IO_DPETH) { |
149 | rd->rdma_protocol = ntohl(rd->recv_buf.mode); |
150 | |
151 | /* CHANNEL semantic, do nothing */ |
152 | if (rd->rdma_protocol == FIO_RDMA_CHA_SEND) |
153 | rd->rdma_protocol = FIO_RDMA_CHA_RECV; |
154 | } |
155 | |
156 | return 0; |
157 | } |
158 | |
159 | static int cq_event_handler(struct thread_data *td, enum ibv_wc_opcode opcode) |
160 | { |
161 | struct rdmaio_data *rd = td->io_ops->data; |
162 | struct ibv_wc wc; |
163 | struct rdma_io_u_data *r_io_u_d; |
164 | int ret; |
165 | int compevnum = 0; |
166 | int i; |
167 | |
168 | while ((ret = ibv_poll_cq(rd->cq, 1, &wc)) == 1) { |
169 | ret = 0; |
170 | compevnum++; |
171 | |
172 | if (wc.status) { |
173 | log_err("fio: cq completion status %d(%s)\n", |
174 | wc.status, ibv_wc_status_str(wc.status)); |
175 | return -1; |
176 | } |
177 | |
178 | switch (wc.opcode) { |
179 | |
180 | case IBV_WC_RECV: |
181 | if (rd->is_client == 1) |
182 | client_recv(td, &wc); |
183 | else |
184 | server_recv(td, &wc); |
185 | |
186 | if (wc.wr_id == FIO_RDMA_MAX_IO_DPETH) |
187 | break; |
188 | |
189 | for (i = 0; i < rd->io_u_flight_nr; i++) { |
190 | r_io_u_d = rd->io_us_flight[i]->engine_data; |
191 | |
192 | if (wc.wr_id == r_io_u_d->rq_wr.wr_id) { |
193 | rd->io_us_flight[i]->resid = |
194 | rd->io_us_flight[i]->buflen |
195 | - wc.byte_len; |
196 | |
197 | rd->io_us_flight[i]->error = 0; |
198 | |
199 | rd->io_us_completed[rd-> |
200 | io_u_completed_nr] |
201 | = rd->io_us_flight[i]; |
202 | rd->io_u_completed_nr++; |
203 | break; |
204 | } |
205 | } |
206 | if (i == rd->io_u_flight_nr) |
207 | log_err("fio: recv wr %ld not found\n", |
208 | wc.wr_id); |
209 | else { |
210 | /* put the last one into middle of the list */ |
211 | rd->io_us_flight[i] = |
212 | rd->io_us_flight[rd->io_u_flight_nr - 1]; |
213 | rd->io_u_flight_nr--; |
214 | } |
215 | |
216 | break; |
217 | |
218 | case IBV_WC_SEND: |
219 | case IBV_WC_RDMA_WRITE: |
220 | case IBV_WC_RDMA_READ: |
221 | if (wc.wr_id == FIO_RDMA_MAX_IO_DPETH) |
222 | break; |
223 | |
224 | for (i = 0; i < rd->io_u_flight_nr; i++) { |
225 | r_io_u_d = rd->io_us_flight[i]->engine_data; |
226 | |
227 | if (wc.wr_id == r_io_u_d->sq_wr.wr_id) { |
228 | rd->io_us_completed[rd-> |
229 | io_u_completed_nr] |
230 | = rd->io_us_flight[i]; |
231 | rd->io_u_completed_nr++; |
232 | break; |
233 | } |
234 | } |
235 | if (i == rd->io_u_flight_nr) |
236 | log_err("fio: send wr %ld not found\n", |
237 | wc.wr_id); |
238 | else { |
239 | /* put the last one into middle of the list */ |
240 | rd->io_us_flight[i] = |
241 | rd->io_us_flight[rd->io_u_flight_nr - 1]; |
242 | rd->io_u_flight_nr--; |
243 | } |
244 | |
245 | break; |
246 | |
247 | default: |
248 | log_info("fio: unknown completion event %d\n", |
249 | wc.opcode); |
250 | return -1; |
251 | } |
252 | rd->cq_event_num++; |
253 | } |
254 | if (ret) { |
255 | log_err("fio: poll error %d\n", ret); |
256 | return 1; |
257 | } |
258 | |
259 | return compevnum; |
260 | } |
261 | |
262 | /* |
263 | * Return -1 for error and 'nr events' for a positive number |
264 | * of events |
265 | */ |
266 | static int rdma_poll_wait(struct thread_data *td, enum ibv_wc_opcode opcode) |
267 | { |
268 | struct rdmaio_data *rd = td->io_ops->data; |
269 | struct ibv_cq *ev_cq; |
270 | void *ev_ctx; |
271 | int ret; |
272 | |
273 | if (rd->cq_event_num > 0) { /* previous left */ |
274 | rd->cq_event_num--; |
275 | return 0; |
276 | } |
277 | |
278 | again: |
279 | if (ibv_get_cq_event(rd->channel, &ev_cq, &ev_ctx) != 0) { |
280 | log_err("fio: Failed to get cq event!\n"); |
281 | return -1; |
282 | } |
283 | if (ev_cq != rd->cq) { |
284 | log_err("fio: Unknown CQ!\n"); |
285 | return -1; |
286 | } |
287 | if (ibv_req_notify_cq(rd->cq, 0) != 0) { |
288 | log_err("fio: Failed to set notify!\n"); |
289 | return -1; |
290 | } |
291 | |
292 | ret = cq_event_handler(td, opcode); |
293 | if (ret < 1) |
294 | goto again; |
295 | |
296 | ibv_ack_cq_events(rd->cq, ret); |
297 | |
298 | rd->cq_event_num--; |
299 | |
300 | return ret; |
301 | } |
302 | |
303 | static int fio_rdmaio_setup_qp(struct thread_data *td) |
304 | { |
305 | struct rdmaio_data *rd = td->io_ops->data; |
306 | struct ibv_qp_init_attr init_attr; |
307 | int qp_depth = td->o.iodepth * 2; /* 2 times of io depth */ |
308 | |
309 | if (rd->is_client == 0) |
310 | rd->pd = ibv_alloc_pd(rd->child_cm_id->verbs); |
311 | else |
312 | rd->pd = ibv_alloc_pd(rd->cm_id->verbs); |
313 | if (rd->pd == NULL) { |
314 | log_err("fio: ibv_alloc_pd fail\n"); |
315 | return 1; |
316 | } |
317 | |
318 | if (rd->is_client == 0) |
319 | rd->channel = ibv_create_comp_channel(rd->child_cm_id->verbs); |
320 | else |
321 | rd->channel = ibv_create_comp_channel(rd->cm_id->verbs); |
322 | if (rd->channel == NULL) { |
323 | log_err("fio: ibv_create_comp_channel fail\n"); |
324 | goto err1; |
325 | } |
326 | |
327 | if (qp_depth < 16) |
328 | qp_depth = 16; |
329 | |
330 | if (rd->is_client == 0) |
331 | rd->cq = ibv_create_cq(rd->child_cm_id->verbs, |
332 | qp_depth, rd, rd->channel, 0); |
333 | else |
334 | rd->cq = ibv_create_cq(rd->cm_id->verbs, |
335 | qp_depth, rd, rd->channel, 0); |
336 | if (rd->cq == NULL) { |
337 | log_err("fio: ibv_create_cq failed\n"); |
338 | goto err2; |
339 | } |
340 | |
341 | if (ibv_req_notify_cq(rd->cq, 0) != 0) { |
342 | log_err("fio: ibv_create_cq failed\n"); |
343 | goto err3; |
344 | } |
345 | |
346 | /* create queue pair */ |
347 | memset(&init_attr, 0, sizeof(init_attr)); |
348 | init_attr.cap.max_send_wr = qp_depth; |
349 | init_attr.cap.max_recv_wr = qp_depth; |
350 | init_attr.cap.max_recv_sge = 1; |
351 | init_attr.cap.max_send_sge = 1; |
352 | init_attr.qp_type = IBV_QPT_RC; |
353 | init_attr.send_cq = rd->cq; |
354 | init_attr.recv_cq = rd->cq; |
355 | |
356 | if (rd->is_client == 0) { |
357 | if (rdma_create_qp(rd->child_cm_id, rd->pd, &init_attr) != 0) { |
358 | log_err("fio: rdma_create_qp failed\n"); |
359 | goto err3; |
360 | } |
361 | rd->qp = rd->child_cm_id->qp; |
362 | } else { |
363 | if (rdma_create_qp(rd->cm_id, rd->pd, &init_attr) != 0) { |
364 | log_err("fio: rdma_create_qp failed\n"); |
365 | goto err3; |
366 | } |
367 | rd->qp = rd->cm_id->qp; |
368 | } |
369 | |
370 | return 0; |
371 | |
372 | err3: |
373 | ibv_destroy_cq(rd->cq); |
374 | err2: |
375 | ibv_destroy_comp_channel(rd->channel); |
376 | err1: |
377 | ibv_dealloc_pd(rd->pd); |
378 | |
379 | return 1; |
380 | } |
381 | |
382 | static int fio_rdmaio_setup_control_msg_buffers(struct thread_data *td) |
383 | { |
384 | struct rdmaio_data *rd = td->io_ops->data; |
385 | |
386 | rd->recv_mr = ibv_reg_mr(rd->pd, &rd->recv_buf, sizeof(rd->recv_buf), |
387 | IBV_ACCESS_LOCAL_WRITE); |
388 | if (rd->recv_mr == NULL) { |
389 | log_err("fio: recv_buf reg_mr failed\n"); |
390 | return 1; |
391 | } |
392 | |
393 | rd->send_mr = ibv_reg_mr(rd->pd, &rd->send_buf, sizeof(rd->send_buf), |
394 | 0); |
395 | if (rd->send_mr == NULL) { |
396 | log_err("fio: send_buf reg_mr failed\n"); |
397 | ibv_dereg_mr(rd->recv_mr); |
398 | return 1; |
399 | } |
400 | |
401 | /* setup work request */ |
402 | /* recv wq */ |
403 | rd->recv_sgl.addr = (uint64_t) (unsigned long)&rd->recv_buf; |
404 | rd->recv_sgl.length = sizeof rd->recv_buf; |
405 | rd->recv_sgl.lkey = rd->recv_mr->lkey; |
406 | rd->rq_wr.sg_list = &rd->recv_sgl; |
407 | rd->rq_wr.num_sge = 1; |
408 | rd->rq_wr.wr_id = FIO_RDMA_MAX_IO_DPETH; |
409 | |
410 | /* send wq */ |
411 | rd->send_sgl.addr = (uint64_t) (unsigned long)&rd->send_buf; |
412 | rd->send_sgl.length = sizeof rd->send_buf; |
413 | rd->send_sgl.lkey = rd->send_mr->lkey; |
414 | |
415 | rd->sq_wr.opcode = IBV_WR_SEND; |
416 | rd->sq_wr.send_flags = IBV_SEND_SIGNALED; |
417 | rd->sq_wr.sg_list = &rd->send_sgl; |
418 | rd->sq_wr.num_sge = 1; |
419 | rd->sq_wr.wr_id = FIO_RDMA_MAX_IO_DPETH; |
420 | |
421 | return 0; |
422 | } |
423 | |
424 | static int get_next_channel_event(struct thread_data *td, |
425 | struct rdma_event_channel *channel, |
426 | enum rdma_cm_event_type wait_event) |
427 | { |
428 | struct rdmaio_data *rd = td->io_ops->data; |
429 | |
430 | int ret; |
431 | struct rdma_cm_event *event; |
432 | |
433 | ret = rdma_get_cm_event(channel, &event); |
434 | if (ret) { |
435 | log_err("fio: rdma_get_cm_event"); |
436 | return 1; |
437 | } |
438 | |
439 | if (event->event != wait_event) { |
440 | log_err("fio: event is %s instead of %s\n", |
441 | rdma_event_str(event->event), |
442 | rdma_event_str(wait_event)); |
443 | return 1; |
444 | } |
445 | |
446 | switch (event->event) { |
447 | case RDMA_CM_EVENT_CONNECT_REQUEST: |
448 | rd->child_cm_id = event->id; |
449 | break; |
450 | default: |
451 | break; |
452 | } |
453 | |
454 | rdma_ack_cm_event(event); |
455 | |
456 | return 0; |
457 | } |
458 | |
459 | static int fio_rdmaio_prep(struct thread_data *td, struct io_u *io_u) |
460 | { |
461 | struct rdmaio_data *rd = td->io_ops->data; |
462 | struct rdma_io_u_data *r_io_u_d; |
463 | |
464 | r_io_u_d = io_u->engine_data; |
465 | |
466 | switch (rd->rdma_protocol) { |
467 | case FIO_RDMA_MEM_WRITE: |
468 | case FIO_RDMA_MEM_READ: |
469 | r_io_u_d->rdma_sgl.addr = (uint64_t) (unsigned long)io_u->buf; |
470 | r_io_u_d->rdma_sgl.lkey = io_u->mr->lkey; |
471 | r_io_u_d->sq_wr.wr_id = r_io_u_d->wr_id; |
472 | r_io_u_d->sq_wr.send_flags = IBV_SEND_SIGNALED; |
473 | r_io_u_d->sq_wr.sg_list = &r_io_u_d->rdma_sgl; |
474 | r_io_u_d->sq_wr.num_sge = 1; |
475 | break; |
476 | case FIO_RDMA_CHA_SEND: |
477 | r_io_u_d->rdma_sgl.addr = (uint64_t) (unsigned long)io_u->buf; |
478 | r_io_u_d->rdma_sgl.lkey = io_u->mr->lkey; |
479 | r_io_u_d->rdma_sgl.length = io_u->buflen; |
480 | r_io_u_d->sq_wr.wr_id = r_io_u_d->wr_id; |
481 | r_io_u_d->sq_wr.opcode = IBV_WR_SEND; |
482 | r_io_u_d->sq_wr.send_flags = IBV_SEND_SIGNALED; |
483 | r_io_u_d->sq_wr.sg_list = &r_io_u_d->rdma_sgl; |
484 | r_io_u_d->sq_wr.num_sge = 1; |
485 | break; |
486 | case FIO_RDMA_CHA_RECV: |
487 | r_io_u_d->rdma_sgl.addr = (uint64_t) (unsigned long)io_u->buf; |
488 | r_io_u_d->rdma_sgl.lkey = io_u->mr->lkey; |
489 | r_io_u_d->rdma_sgl.length = io_u->buflen; |
490 | r_io_u_d->rq_wr.wr_id = r_io_u_d->wr_id; |
491 | r_io_u_d->rq_wr.sg_list = &r_io_u_d->rdma_sgl; |
492 | r_io_u_d->rq_wr.num_sge = 1; |
493 | break; |
494 | default: |
495 | log_err("fio: unknown rdma protocol - %d\n", rd->rdma_protocol); |
496 | break; |
497 | } |
498 | |
499 | return 0; |
500 | } |
501 | |
502 | static struct io_u *fio_rdmaio_event(struct thread_data *td, int event) |
503 | { |
504 | struct rdmaio_data *rd = td->io_ops->data; |
505 | struct io_u *io_u; |
506 | int i; |
507 | |
508 | io_u = rd->io_us_completed[0]; |
509 | for (i = 0; i < rd->io_u_completed_nr - 1; i++) { |
510 | rd->io_us_completed[i] = rd->io_us_completed[i + 1]; |
511 | } |
512 | rd->io_u_completed_nr--; |
513 | |
514 | dprint_io_u(io_u, "fio_rdmaio_event"); |
515 | |
516 | return io_u; |
517 | } |
518 | |
519 | static int fio_rdmaio_getevents(struct thread_data *td, unsigned int min, |
520 | unsigned int max, struct timespec *t) |
521 | { |
522 | struct rdmaio_data *rd = td->io_ops->data; |
523 | int r; |
524 | enum ibv_wc_opcode comp_opcode; |
525 | comp_opcode = IBV_WC_RDMA_WRITE; |
526 | struct ibv_cq *ev_cq; |
527 | void *ev_ctx; |
528 | int ret; |
529 | |
530 | r = 0; |
531 | |
532 | switch (rd->rdma_protocol) { |
533 | case FIO_RDMA_MEM_WRITE: |
534 | comp_opcode = IBV_WC_RDMA_WRITE; |
535 | break; |
536 | case FIO_RDMA_MEM_READ: |
537 | comp_opcode = IBV_WC_RDMA_READ; |
538 | break; |
539 | case FIO_RDMA_CHA_SEND: |
540 | comp_opcode = IBV_WC_SEND; |
541 | break; |
542 | case FIO_RDMA_CHA_RECV: |
543 | comp_opcode = IBV_WC_RECV; |
544 | break; |
545 | default: |
546 | log_err("fio: unknown rdma protocol - %d\n", rd->rdma_protocol); |
547 | break; |
548 | } |
549 | |
550 | if (rd->cq_event_num > 0) { /* previous left */ |
551 | rd->cq_event_num--; |
552 | return 0; |
553 | } |
554 | |
555 | again: |
556 | if (ibv_get_cq_event(rd->channel, &ev_cq, &ev_ctx) != 0) { |
557 | log_err("fio: Failed to get cq event!\n"); |
558 | return -1; |
559 | } |
560 | if (ev_cq != rd->cq) { |
561 | log_err("fio: Unknown CQ!\n"); |
562 | return -1; |
563 | } |
564 | if (ibv_req_notify_cq(rd->cq, 0) != 0) { |
565 | log_err("fio: Failed to set notify!\n"); |
566 | return -1; |
567 | } |
568 | |
569 | ret = cq_event_handler(td, comp_opcode); |
570 | if (ret < 1) |
571 | goto again; |
572 | |
573 | ibv_ack_cq_events(rd->cq, ret); |
574 | |
575 | r += ret; |
576 | if (r < min) |
577 | goto again; |
578 | |
579 | rd->cq_event_num -= r; |
580 | |
581 | return r; |
582 | } |
583 | |
584 | static int fio_rdmaio_send(struct thread_data *td, struct io_u **io_us, |
585 | unsigned int nr) |
586 | { |
587 | struct rdmaio_data *rd = td->io_ops->data; |
588 | struct ibv_send_wr *bad_wr; |
589 | enum ibv_wc_opcode comp_opcode; |
590 | comp_opcode = IBV_WC_RDMA_WRITE; |
591 | int i, index; |
592 | struct rdma_io_u_data *r_io_u_d; |
593 | |
594 | r_io_u_d = NULL; |
595 | |
596 | for (i = 0; i < nr; i++) { |
597 | /* RDMA_WRITE or RDMA_READ */ |
598 | switch (rd->rdma_protocol) { |
599 | case FIO_RDMA_MEM_WRITE: |
600 | /* compose work request */ |
601 | r_io_u_d = io_us[i]->engine_data; |
602 | index = rand() % rd->rmt_nr; |
603 | r_io_u_d->sq_wr.opcode = IBV_WR_RDMA_WRITE; |
604 | r_io_u_d->sq_wr.wr.rdma.rkey = rd->rmt_us[index].rkey; |
605 | r_io_u_d->sq_wr.wr.rdma.remote_addr = |
606 | rd->rmt_us[index].buf; |
607 | r_io_u_d->sq_wr.sg_list->length = io_us[i]->buflen; |
608 | break; |
609 | case FIO_RDMA_MEM_READ: |
610 | /* compose work request */ |
611 | r_io_u_d = io_us[i]->engine_data; |
612 | index = rand() % rd->rmt_nr; |
613 | r_io_u_d->sq_wr.opcode = IBV_WR_RDMA_READ; |
614 | r_io_u_d->sq_wr.wr.rdma.rkey = rd->rmt_us[index].rkey; |
615 | r_io_u_d->sq_wr.wr.rdma.remote_addr = |
616 | rd->rmt_us[index].buf; |
617 | r_io_u_d->sq_wr.sg_list->length = io_us[i]->buflen; |
618 | break; |
619 | case FIO_RDMA_CHA_SEND: |
620 | r_io_u_d = io_us[i]->engine_data; |
621 | r_io_u_d->sq_wr.opcode = IBV_WR_SEND; |
622 | r_io_u_d->sq_wr.send_flags = IBV_SEND_SIGNALED; |
623 | break; |
624 | default: |
625 | log_err("fio: unknown rdma protocol - %d\n", |
626 | rd->rdma_protocol); |
627 | break; |
628 | } |
629 | |
630 | if (ibv_post_send(rd->qp, &r_io_u_d->sq_wr, &bad_wr) != 0) { |
631 | log_err("fio: ibv_post_send fail\n"); |
632 | return -1; |
633 | } |
634 | |
635 | dprint_io_u(io_us[i], "fio_rdmaio_send"); |
636 | } |
637 | |
638 | /* wait for completion |
639 | rdma_poll_wait(td, comp_opcode); */ |
640 | |
641 | return i; |
642 | } |
643 | |
644 | static int fio_rdmaio_recv(struct thread_data *td, struct io_u **io_us, |
645 | unsigned int nr) |
646 | { |
647 | struct rdmaio_data *rd = td->io_ops->data; |
648 | struct ibv_recv_wr *bad_wr; |
649 | struct rdma_io_u_data *r_io_u_d; |
650 | int i; |
651 | |
652 | i = 0; |
653 | if (rd->rdma_protocol == FIO_RDMA_CHA_RECV) { |
654 | /* post io_u into recv queue */ |
655 | for (i = 0; i < nr; i++) { |
656 | r_io_u_d = io_us[i]->engine_data; |
657 | if (ibv_post_recv(rd->qp, &r_io_u_d->rq_wr, &bad_wr) != |
658 | 0) { |
659 | log_err("fio: ibv_post_recv fail\n"); |
660 | return 1; |
661 | } |
662 | } |
663 | } else if ((rd->rdma_protocol == FIO_RDMA_MEM_READ) |
664 | || (rd->rdma_protocol == FIO_RDMA_MEM_WRITE)) { |
665 | /* re-post the rq_wr */ |
666 | if (ibv_post_recv(rd->qp, &rd->rq_wr, &bad_wr) != 0) { |
667 | log_err("fio: ibv_post_recv fail\n"); |
668 | return 1; |
669 | } |
670 | |
671 | rdma_poll_wait(td, IBV_WC_RECV); |
672 | |
673 | dprint(FD_IO, "fio: recv FINISH message\n"); |
674 | exit(0); |
675 | } |
676 | |
677 | return i; |
678 | } |
679 | |
680 | static int fio_rdmaio_queue(struct thread_data *td, struct io_u *io_u) |
681 | { |
682 | struct rdmaio_data *rd = td->io_ops->data; |
683 | |
684 | fio_ro_check(td, io_u); |
685 | |
686 | if (rd->io_u_queued_nr == (int)td->o.iodepth) |
687 | return FIO_Q_BUSY; |
688 | |
689 | rd->io_us_queued[rd->io_u_queued_nr] = io_u; |
690 | rd->io_u_queued_nr++; |
691 | |
692 | dprint_io_u(io_u, "fio_rdmaio_queue"); |
693 | |
694 | return FIO_Q_QUEUED; |
695 | } |
696 | |
697 | static void fio_rdmaio_queued(struct thread_data *td, struct io_u **io_us, |
698 | unsigned int nr) |
699 | { |
700 | struct rdmaio_data *rd = td->io_ops->data; |
701 | struct timeval now; |
702 | unsigned int i; |
703 | |
704 | if (!fio_fill_issue_time(td)) |
705 | return; |
706 | |
707 | fio_gettime(&now, NULL); |
708 | |
709 | for (i = 0; i < nr; i++) { |
710 | struct io_u *io_u = io_us[i]; |
711 | |
712 | /* queued -> flight */ |
713 | rd->io_us_flight[rd->io_u_flight_nr] = io_u; |
714 | rd->io_u_flight_nr++; |
715 | |
716 | memcpy(&io_u->issue_time, &now, sizeof(now)); |
717 | io_u_queued(td, io_u); |
718 | } |
719 | } |
720 | |
721 | static int fio_rdmaio_commit(struct thread_data *td) |
722 | { |
723 | struct rdmaio_data *rd = td->io_ops->data; |
724 | struct io_u **io_us; |
725 | int ret; |
726 | |
727 | if (!rd->io_us_queued) |
728 | return 0; |
729 | |
730 | io_us = rd->io_us_queued; |
731 | do { |
732 | /* RDMA_WRITE or RDMA_READ */ |
733 | if (rd->is_client) { |
734 | ret = fio_rdmaio_send(td, io_us, rd->io_u_queued_nr); |
735 | } else if (!rd->is_client) { |
736 | ret = fio_rdmaio_recv(td, io_us, rd->io_u_queued_nr); |
737 | } else |
738 | ret = 0; /* must be a SYNC */ |
739 | |
740 | if (ret > 0) { |
741 | fio_rdmaio_queued(td, io_us, ret); |
742 | io_u_mark_submit(td, ret); |
743 | rd->io_u_queued_nr -= ret; |
744 | io_us += ret; |
745 | ret = 0; |
746 | } else |
747 | break; |
748 | } while (rd->io_u_queued_nr); |
749 | |
750 | return ret; |
751 | } |
752 | |
753 | static int fio_rdmaio_connect(struct thread_data *td, struct fio_file *f) |
754 | { |
755 | struct rdmaio_data *rd = td->io_ops->data; |
756 | struct rdma_conn_param conn_param; |
757 | struct ibv_send_wr *bad_wr; |
758 | |
759 | memset(&conn_param, 0, sizeof conn_param); |
760 | conn_param.responder_resources = 1; |
761 | conn_param.initiator_depth = 1; |
762 | conn_param.retry_count = 10; |
763 | |
764 | if (rdma_connect(rd->cm_id, &conn_param) != 0) { |
765 | log_err("fio: rdma_connect fail\n"); |
766 | return 1; |
767 | } |
768 | |
769 | if (get_next_channel_event |
770 | (td, rd->cm_channel, RDMA_CM_EVENT_ESTABLISHED) != 0) { |
771 | log_err("fio: wait for RDMA_CM_EVENT_ESTABLISHED\n"); |
772 | return 1; |
773 | } |
774 | |
775 | /* send task request */ |
776 | rd->send_buf.mode = htonl(rd->rdma_protocol); |
777 | rd->send_buf.nr = htonl(td->o.iodepth); |
778 | |
779 | if (ibv_post_send(rd->qp, &rd->sq_wr, &bad_wr) != 0) { |
780 | log_err("fio: ibv_post_send fail"); |
781 | return 1; |
782 | } |
783 | |
784 | rdma_poll_wait(td, IBV_WC_SEND); |
785 | |
786 | /* wait for remote MR info from server side */ |
787 | rdma_poll_wait(td, IBV_WC_RECV); |
788 | |
789 | return 0; |
790 | } |
791 | |
792 | static int fio_rdmaio_accept(struct thread_data *td, struct fio_file *f) |
793 | { |
794 | struct rdmaio_data *rd = td->io_ops->data; |
795 | struct rdma_conn_param conn_param; |
796 | struct ibv_send_wr *bad_wr; |
797 | |
798 | /* rdma_accept() - then wait for accept success */ |
799 | memset(&conn_param, 0, sizeof conn_param); |
800 | conn_param.responder_resources = 1; |
801 | conn_param.initiator_depth = 1; |
802 | |
803 | if (rdma_accept(rd->child_cm_id, &conn_param) != 0) { |
804 | log_err("fio: rdma_accept\n"); |
805 | return 1; |
806 | } |
807 | |
808 | if (get_next_channel_event |
809 | (td, rd->cm_channel, RDMA_CM_EVENT_ESTABLISHED) != 0) { |
810 | log_err("fio: wait for RDMA_CM_EVENT_ESTABLISHED\n"); |
811 | return 1; |
812 | } |
813 | |
814 | /* wait for request */ |
815 | rdma_poll_wait(td, IBV_WC_RECV); |
816 | |
817 | if (ibv_post_send(rd->qp, &rd->sq_wr, &bad_wr) != 0) { |
818 | log_err("fio: ibv_post_send fail"); |
819 | return 1; |
820 | } |
821 | |
822 | rdma_poll_wait(td, IBV_WC_SEND); |
823 | |
824 | return 0; |
825 | } |
826 | |
827 | static int fio_rdmaio_open_file(struct thread_data *td, struct fio_file *f) |
828 | { |
829 | if (td_read(td)) |
830 | return fio_rdmaio_accept(td, f); |
831 | else |
832 | return fio_rdmaio_connect(td, f); |
833 | } |
834 | |
835 | static int fio_rdmaio_close_file(struct thread_data *td, struct fio_file *f) |
836 | { |
837 | struct rdmaio_data *rd = td->io_ops->data; |
838 | struct ibv_send_wr *bad_wr; |
839 | |
840 | /* unregister rdma buffer */ |
841 | |
842 | /* |
843 | * Client sends notification to the server side |
844 | */ |
845 | /* refer to: http://linux.die.net/man/7/rdma_cm */ |
846 | if ((rd->is_client == 1) && ((rd->rdma_protocol == FIO_RDMA_MEM_WRITE) |
847 | || (rd->rdma_protocol == |
848 | FIO_RDMA_MEM_READ))) { |
849 | if (ibv_post_send(rd->qp, &rd->sq_wr, &bad_wr) != 0) { |
850 | log_err("fio: ibv_post_send fail"); |
851 | return 1; |
852 | } |
853 | |
854 | dprint(FD_IO, "fio: close infomation sent success\n"); |
855 | rdma_poll_wait(td, IBV_WC_SEND); |
856 | } |
857 | |
858 | if (rd->is_client == 1) |
859 | rdma_disconnect(rd->cm_id); |
860 | else { |
861 | rdma_disconnect(rd->child_cm_id); |
862 | /* rdma_disconnect(rd->cm_id); */ |
863 | } |
864 | |
865 | /* if (get_next_channel_event(td, rd->cm_channel, RDMA_CM_EVENT_DISCONNECTED) != 0) |
866 | { |
867 | log_err("fio: wait for RDMA_CM_EVENT_DISCONNECTED\n"); |
868 | return 1; |
869 | }*/ |
870 | |
871 | ibv_destroy_qp(rd->qp); |
872 | ibv_destroy_cq(rd->cq); |
873 | |
874 | if (rd->is_client == 1) |
875 | rdma_destroy_id(rd->cm_id); |
876 | else { |
877 | rdma_destroy_id(rd->child_cm_id); |
878 | rdma_destroy_id(rd->cm_id); |
879 | } |
880 | |
881 | ibv_destroy_comp_channel(rd->channel); |
882 | ibv_dealloc_pd(rd->pd); |
883 | |
884 | return 0; |
885 | } |
886 | |
887 | static int fio_rdmaio_setup_connect(struct thread_data *td, const char *host, |
888 | unsigned short port) |
889 | { |
890 | struct rdmaio_data *rd = td->io_ops->data; |
891 | struct ibv_recv_wr *bad_wr; |
892 | |
893 | rd->addr.sin_family = AF_INET; |
894 | rd->addr.sin_port = htons(port); |
895 | |
896 | if (inet_aton(host, &rd->addr.sin_addr) != 1) { |
897 | struct hostent *hent; |
898 | |
899 | hent = gethostbyname(host); |
900 | if (!hent) { |
901 | td_verror(td, errno, "gethostbyname"); |
902 | return 1; |
903 | } |
904 | |
905 | memcpy(&rd->addr.sin_addr, hent->h_addr, 4); |
906 | } |
907 | |
908 | /* resolve route */ |
909 | if (rdma_resolve_addr(rd->cm_id, NULL, |
910 | (struct sockaddr *)&rd->addr, 2000) != 0) { |
911 | log_err("fio: rdma_resolve_addr"); |
912 | return 1; |
913 | } |
914 | |
915 | if (get_next_channel_event |
916 | (td, rd->cm_channel, RDMA_CM_EVENT_ADDR_RESOLVED) |
917 | != 0) { |
918 | log_err("fio: get_next_channel_event"); |
919 | return 1; |
920 | } |
921 | |
922 | /* resolve route */ |
923 | if (rdma_resolve_route(rd->cm_id, 2000) != 0) { |
924 | log_err("fio: rdma_resolve_route"); |
925 | return 1; |
926 | } |
927 | |
928 | if (get_next_channel_event |
929 | (td, rd->cm_channel, RDMA_CM_EVENT_ROUTE_RESOLVED) != 0) { |
930 | log_err("fio: get_next_channel_event"); |
931 | return 1; |
932 | } |
933 | |
934 | /* create qp and buffer */ |
935 | if (fio_rdmaio_setup_qp(td) != 0) |
936 | return 1; |
937 | |
938 | if (fio_rdmaio_setup_control_msg_buffers(td) != 0) |
939 | return 1; |
940 | |
941 | /* post recv buf */ |
942 | if (ibv_post_recv(rd->qp, &rd->rq_wr, &bad_wr) != 0) { |
943 | log_err("fio: ibv_post_recv fail\n"); |
944 | return 1; |
945 | } |
946 | |
947 | return 0; |
948 | } |
949 | |
950 | static int fio_rdmaio_setup_listen(struct thread_data *td, short port) |
951 | { |
952 | struct rdmaio_data *rd = td->io_ops->data; |
953 | struct ibv_recv_wr *bad_wr; |
954 | |
955 | rd->addr.sin_family = AF_INET; |
956 | rd->addr.sin_addr.s_addr = htonl(INADDR_ANY); |
957 | rd->addr.sin_port = htons(port); |
958 | |
959 | /* rdma_listen */ |
960 | if (rdma_bind_addr(rd->cm_id, (struct sockaddr *)&rd->addr) != 0) { |
961 | log_err("fio: rdma_bind_addr fail\n"); |
962 | return 1; |
963 | } |
964 | |
965 | if (rdma_listen(rd->cm_id, 3) != 0) { |
966 | log_err("fio: rdma_listen fail\n"); |
967 | return 1; |
968 | } |
969 | |
970 | /* wait for CONNECT_REQUEST */ |
971 | if (get_next_channel_event |
972 | (td, rd->cm_channel, RDMA_CM_EVENT_CONNECT_REQUEST) != 0) { |
973 | log_err("fio: wait for RDMA_CM_EVENT_CONNECT_REQUEST\n"); |
974 | return 1; |
975 | } |
976 | |
977 | if (fio_rdmaio_setup_qp(td) != 0) |
978 | return 1; |
979 | |
980 | if (fio_rdmaio_setup_control_msg_buffers(td) != 0) |
981 | return 1; |
982 | |
983 | /* post recv buf */ |
984 | if (ibv_post_recv(rd->qp, &rd->rq_wr, &bad_wr) != 0) { |
985 | log_err("fio: ibv_post_recv fail\n"); |
986 | return 1; |
987 | } |
988 | |
989 | return 0; |
990 | } |
991 | |
992 | static int fio_rdmaio_init(struct thread_data *td) |
993 | { |
994 | struct rdmaio_data *rd = td->io_ops->data; |
995 | unsigned int port; |
996 | char host[64], buf[128]; |
997 | char *sep, *portp, *modep; |
998 | int ret; |
999 | struct rlimit rl; |
1000 | |
1001 | if (td_rw(td)) { |
1002 | log_err("fio: rdma connections must be read OR write\n"); |
1003 | return 1; |
1004 | } |
1005 | if (td_random(td)) { |
1006 | log_err("fio: RDMA network IO can't be random\n"); |
1007 | return 1; |
1008 | } |
1009 | |
1010 | /* check RLIMIT_MEMLOCK */ |
1011 | if (getrlimit(RLIMIT_MEMLOCK, &rl) != 0) { |
1012 | log_err("fio: getrlimit fail: %d(%s)\n", |
1013 | errno, strerror(errno)); |
1014 | return 1; |
1015 | } |
1016 | |
1017 | /* soft limit */ |
1018 | if ((rl.rlim_cur != RLIM_INFINITY) |
1019 | && (rl.rlim_cur < td->orig_buffer_size)) { |
1020 | log_err("fio: soft RLIMIT_MEMLOCK is: %ld\n", rl.rlim_cur); |
1021 | log_err("fio: total block size is: %ld\n", |
1022 | td->orig_buffer_size); |
1023 | /* try to set larger RLIMIT_MEMLOCK */ |
1024 | rl.rlim_cur = rl.rlim_max; |
1025 | if (setrlimit(RLIMIT_MEMLOCK, &rl) != 0) { |
1026 | log_err("fio: setrlimit fail: %d(%s)\n", |
1027 | errno, strerror(errno)); |
1028 | log_err("fio: you may try enlarge MEMLOCK by root\n"); |
1029 | log_err("# ulimit -l unlimited\n"); |
1030 | return 1; |
1031 | } |
1032 | } |
1033 | |
1034 | strcpy(buf, td->o.filename); |
1035 | |
1036 | sep = strchr(buf, '/'); |
1037 | if (!sep) |
1038 | goto bad_host; |
1039 | |
1040 | *sep = '\0'; |
1041 | sep++; |
1042 | strcpy(host, buf); |
1043 | if (!strlen(host)) |
1044 | goto bad_host; |
1045 | |
1046 | modep = NULL; |
1047 | portp = sep; |
1048 | sep = strchr(portp, '/'); |
1049 | if (sep) { |
1050 | *sep = '\0'; |
1051 | modep = sep + 1; |
1052 | } |
1053 | |
1054 | port = strtol(portp, NULL, 10); |
1055 | if (!port || port > 65535) |
1056 | goto bad_host; |
1057 | |
1058 | if (modep) { |
1059 | if (!strncmp("rdma_write", modep, strlen(modep)) || |
1060 | !strncmp("RDMA_WRITE", modep, strlen(modep))) |
1061 | rd->rdma_protocol = FIO_RDMA_MEM_WRITE; |
1062 | else if (!strncmp("rdma_read", modep, strlen(modep)) || |
1063 | !strncmp("RDMA_READ", modep, strlen(modep))) |
1064 | rd->rdma_protocol = FIO_RDMA_MEM_READ; |
1065 | else if (!strncmp("send", modep, strlen(modep)) || |
1066 | !strncmp("SEND", modep, strlen(modep))) |
1067 | rd->rdma_protocol = FIO_RDMA_CHA_SEND; |
1068 | else |
1069 | goto bad_host; |
1070 | } else |
1071 | rd->rdma_protocol = FIO_RDMA_MEM_WRITE; |
1072 | |
1073 | rd->cq_event_num = 0; |
1074 | |
1075 | rd->cm_channel = rdma_create_event_channel(); |
1076 | if (!rd->cm_channel) { |
1077 | log_err("fio: rdma_create_event_channel fail\n"); |
1078 | return 1; |
1079 | } |
1080 | |
1081 | ret = rdma_create_id(rd->cm_channel, &rd->cm_id, rd, RDMA_PS_TCP); |
1082 | if (ret) { |
1083 | log_err("fio: rdma_create_id fail\n"); |
1084 | return 1; |
1085 | } |
1086 | |
1087 | if ((rd->rdma_protocol == FIO_RDMA_MEM_WRITE) || |
1088 | (rd->rdma_protocol == FIO_RDMA_MEM_READ)) { |
1089 | rd->rmt_us = |
1090 | malloc(FIO_RDMA_MAX_IO_DPETH * sizeof(struct remote_u)); |
1091 | memset(rd->rmt_us, 0, |
1092 | FIO_RDMA_MAX_IO_DPETH * sizeof(struct remote_u)); |
1093 | rd->rmt_nr = 0; |
1094 | } |
1095 | |
1096 | rd->io_us_queued = malloc(td->o.iodepth * sizeof(struct io_u *)); |
1097 | memset(rd->io_us_queued, 0, td->o.iodepth * sizeof(struct io_u *)); |
1098 | rd->io_u_queued_nr = 0; |
1099 | |
1100 | rd->io_us_flight = malloc(td->o.iodepth * sizeof(struct io_u *)); |
1101 | memset(rd->io_us_flight, 0, td->o.iodepth * sizeof(struct io_u *)); |
1102 | rd->io_u_flight_nr = 0; |
1103 | |
1104 | rd->io_us_completed = malloc(td->o.iodepth * sizeof(struct io_u *)); |
1105 | memset(rd->io_us_completed, 0, td->o.iodepth * sizeof(struct io_u *)); |
1106 | rd->io_u_completed_nr = 0; |
1107 | |
1108 | if (td_read(td)) { /* READ as the server */ |
1109 | rd->is_client = 0; |
1110 | /* server rd->rdma_buf_len will be setup after got request */ |
1111 | ret = fio_rdmaio_setup_listen(td, port); |
1112 | } else { /* WRITE as the client */ |
1113 | rd->is_client = 1; |
1114 | ret = fio_rdmaio_setup_connect(td, host, port); |
1115 | } |
1116 | |
1117 | struct flist_head *entry; |
1118 | unsigned int max_bs; |
1119 | max_bs = max(td->o.max_bs[DDIR_READ], td->o.max_bs[DDIR_WRITE]); |
1120 | /* register each io_u in the free list */ |
1121 | int i = 0; |
1122 | flist_for_each(entry, &td->io_u_freelist) { |
1123 | struct io_u *io_u = flist_entry(entry, struct io_u, list); |
1124 | |
1125 | io_u->engine_data = malloc(sizeof(struct rdma_io_u_data)); |
1126 | memset(io_u->engine_data, 0, sizeof(struct rdma_io_u_data)); |
1127 | ((struct rdma_io_u_data *)io_u->engine_data)->wr_id = i; |
1128 | |
1129 | io_u->mr = ibv_reg_mr(rd->pd, io_u->buf, max_bs, |
1130 | IBV_ACCESS_LOCAL_WRITE | |
1131 | IBV_ACCESS_REMOTE_READ | |
1132 | IBV_ACCESS_REMOTE_WRITE); |
1133 | if (io_u->mr == NULL) { |
1134 | log_err("fio: ibv_reg_mr io_u failed\n"); |
1135 | return 1; |
1136 | } |
1137 | |
1138 | rd->send_buf.rmt_us[i].buf = |
1139 | htonll((uint64_t) (unsigned long)io_u->buf); |
1140 | rd->send_buf.rmt_us[i].rkey = htonl(io_u->mr->rkey); |
1141 | rd->send_buf.rmt_us[i].size = htonl(max_bs); |
1142 | |
1143 | /* log_info("fio: Send rkey %x addr %" PRIx64 " len %d to client\n", |
1144 | io_u->mr->rkey, io_u->buf, max_bs); */ |
1145 | i++; |
1146 | } |
1147 | |
1148 | rd->send_buf.nr = htonl(i); |
1149 | |
1150 | return ret; |
1151 | bad_host: |
1152 | log_err("fio: bad rdma host/port/protocol: %s\n", td->o.filename); |
1153 | return 1; |
1154 | } |
1155 | |
1156 | static void fio_rdmaio_cleanup(struct thread_data *td) |
1157 | { |
1158 | struct rdmaio_data *rd = td->io_ops->data; |
1159 | |
1160 | if (rd) { |
1161 | /* if (nd->listenfd != -1) |
1162 | close(nd->listenfd); |
1163 | if (nd->pipes[0] != -1) |
1164 | close(nd->pipes[0]); |
1165 | if (nd->pipes[1] != -1) |
1166 | close(nd->pipes[1]); |
1167 | */ |
1168 | free(rd); |
1169 | } |
1170 | } |
1171 | |
1172 | static int fio_rdmaio_setup(struct thread_data *td) |
1173 | { |
1174 | struct rdmaio_data *rd; |
1175 | |
1176 | if (!td->io_ops->data) { |
1177 | rd = malloc(sizeof(*rd));; |
1178 | |
1179 | memset(rd, 0, sizeof(*rd)); |
1180 | td->io_ops->data = rd; |
1181 | } |
1182 | |
1183 | return 0; |
1184 | } |
1185 | |
1186 | static struct ioengine_ops ioengine_rw = { |
1187 | .name = "rdma", |
1188 | .version = FIO_IOOPS_VERSION, |
1189 | .setup = fio_rdmaio_setup, |
1190 | .init = fio_rdmaio_init, |
1191 | .prep = fio_rdmaio_prep, |
1192 | .queue = fio_rdmaio_queue, |
1193 | .commit = fio_rdmaio_commit, |
1194 | .getevents = fio_rdmaio_getevents, |
1195 | .event = fio_rdmaio_event, |
1196 | .cleanup = fio_rdmaio_cleanup, |
1197 | .open_file = fio_rdmaio_open_file, |
1198 | .close_file = fio_rdmaio_close_file, |
1199 | .flags = FIO_DISKLESSIO | FIO_UNIDIR | FIO_PIPEIO, |
1200 | }; |
1201 | |
1202 | #else /* FIO_HAVE_RDMA */ |
1203 | |
1204 | static int fio_rdmaio_open_file(struct thread_data *td, struct fio_file *f) |
1205 | { |
1206 | return 0; |
1207 | } |
1208 | |
1209 | static int fio_rdmaio_close_file(struct thread_data *td, struct fio_file *f) |
1210 | { |
1211 | return 0; |
1212 | } |
1213 | |
1214 | static int fio_rdmaio_queue(struct thread_data *td, struct io_u *io_u) |
1215 | { |
1216 | return FIO_Q_COMPLETED; |
1217 | } |
1218 | |
1219 | static int fio_rdmaio_init(struct thread_data fio_unused * td) |
1220 | { |
1221 | log_err("fio: rdma(librdmacm libibverbs) not available\n"); |
1222 | log_err(" You haven't compiled rdma ioengine into fio.\n"); |
1223 | log_err(" If you want to try rdma ioengine,\n"); |
1224 | log_err(" make sure OFED is installed,\n"); |
1225 | log_err(" $ ofed_info\n"); |
1226 | log_err(" then try to make fio as follows:\n"); |
1227 | log_err(" $ export EXTFLAGS=\"-DFIO_HAVE_RDMA\"\n"); |
1228 | log_err(" $ export EXTLIBS=\"-libverbs -lrdmacm\"\n"); |
1229 | log_err(" $ make clean && make\n"); |
1230 | return 1; |
1231 | } |
1232 | |
1233 | static struct ioengine_ops ioengine_rw = { |
1234 | .name = "rdma", |
1235 | .version = FIO_IOOPS_VERSION, |
1236 | .init = fio_rdmaio_init, |
1237 | .queue = fio_rdmaio_queue, |
1238 | .open_file = fio_rdmaio_open_file, |
1239 | .close_file = fio_rdmaio_close_file, |
1240 | .flags = FIO_SYNCIO | FIO_DISKLESSIO | FIO_UNIDIR | FIO_PIPEIO, |
1241 | }; |
1242 | |
1243 | #endif |
1244 | |
1245 | static void fio_init fio_rdmaio_register(void) |
1246 | { |
1247 | register_ioengine(&ioengine_rw); |
1248 | } |
1249 | |
1250 | static void fio_exit fio_rdmaio_unregister(void) |
1251 | { |
1252 | unregister_ioengine(&ioengine_rw); |
1253 | } |