Commit | Line | Data |
---|---|---|
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 | ||
76cc5224 | 43 | #define FIO_RDMA_MAX_IO_DEPTH 128 |
21b8aee8 | 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 | */ | |
76cc5224 | 64 | struct remote_u rmt_us[FIO_RDMA_MAX_IO_DEPTH]; |
21b8aee8 | 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)) { | |
b6cf38f0 | 117 | log_err("Received bogus data, size %d\n", wc->byte_len); |
21b8aee8 | 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 | ||
76cc5224 | 148 | if (wc->wr_id == FIO_RDMA_MAX_IO_DEPTH) { |
21b8aee8 | 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 | ||
76cc5224 | 186 | if (wc.wr_id == FIO_RDMA_MAX_IO_DEPTH) |
21b8aee8 | 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: | |
76cc5224 | 221 | if (wc.wr_id == FIO_RDMA_MAX_IO_DEPTH) |
21b8aee8 | 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; | |
76cc5224 | 408 | rd->rq_wr.wr_id = FIO_RDMA_MAX_IO_DEPTH; |
21b8aee8 | 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; | |
76cc5224 | 419 | rd->sq_wr.wr_id = FIO_RDMA_MAX_IO_DEPTH; |
21b8aee8 | 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; | |
b6cf38f0 YR |
605 | r_io_u_d->sq_wr.wr.rdma.remote_addr = \ |
606 | rd->rmt_us[index].buf; | |
21b8aee8 | 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; | |
b6cf38f0 YR |
615 | r_io_u_d->sq_wr.wr.rdma.remote_addr = \ |
616 | rd->rmt_us[index].buf; | |
21b8aee8 | 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 = | |
76cc5224 | 1090 | malloc(FIO_RDMA_MAX_IO_DEPTH * sizeof(struct remote_u)); |
21b8aee8 | 1091 | memset(rd->rmt_us, 0, |
76cc5224 | 1092 | FIO_RDMA_MAX_IO_DEPTH * sizeof(struct remote_u)); |
21b8aee8 | 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 = { | |
b6cf38f0 YR |
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, | |
21b8aee8 | 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 = { | |
b6cf38f0 YR |
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, | |
21b8aee8 | 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 | } |