Commit | Line | Data |
---|---|---|
21b8aee8 | 1 | /* |
85286c5c | 2 | * RDMA I/O engine |
21b8aee8 | 3 | * |
85286c5c BVA |
4 | * RDMA I/O engine based on the IB verbs and RDMA/CM user space libraries. |
5 | * Supports both RDMA memory semantics and channel semantics | |
6 | * for the InfiniBand, RoCE and iWARP protocols. | |
21b8aee8 | 7 | * |
85286c5c | 8 | * This I/O engine is disabled by default. To enable it, execute: |
21b8aee8 | 9 | * |
10 | * $ export EXTFLAGS="-DFIO_HAVE_RDMA" | |
11 | * $ export EXTLIBS="-libverbs -lrdmacm" | |
12 | * | |
85286c5c BVA |
13 | * before running make. You will need the Linux RDMA software as well, either |
14 | * from your Linux distributor or directly from openfabrics.org: | |
21b8aee8 | 15 | * |
16 | * http://www.openfabrics.org/downloads/OFED/ | |
17 | * | |
18 | */ | |
19 | #include <stdio.h> | |
20 | #include <stdlib.h> | |
21 | #include <unistd.h> | |
22 | #include <errno.h> | |
23 | #include <assert.h> | |
24 | #include <netinet/in.h> | |
25 | #include <arpa/inet.h> | |
26 | #include <netdb.h> | |
27 | #include <sys/poll.h> | |
28 | #include <sys/types.h> | |
29 | #include <sys/socket.h> | |
30 | #include <sys/time.h> | |
31 | #include <sys/resource.h> | |
32 | ||
33 | #include <byteswap.h> | |
34 | #include <pthread.h> | |
35 | #include <inttypes.h> | |
36 | ||
37 | #include "../fio.h" | |
38 | ||
39 | #ifdef FIO_HAVE_RDMA | |
40 | ||
41 | #include <rdma/rdma_cma.h> | |
42 | #include <infiniband/arch.h> | |
43 | ||
76cc5224 | 44 | #define FIO_RDMA_MAX_IO_DEPTH 128 |
21b8aee8 | 45 | |
46 | enum rdma_io_mode { | |
47 | FIO_RDMA_UNKNOWN = 0, | |
48 | FIO_RDMA_MEM_WRITE, | |
49 | FIO_RDMA_MEM_READ, | |
50 | FIO_RDMA_CHA_SEND, | |
51 | FIO_RDMA_CHA_RECV | |
52 | }; | |
53 | ||
54 | struct remote_u { | |
55 | uint64_t buf; | |
56 | uint32_t rkey; | |
57 | uint32_t size; | |
58 | }; | |
59 | ||
60 | struct rdma_info_blk { | |
61 | uint32_t mode; /* channel semantic or memory semantic */ | |
62 | uint32_t nr; /* client: io depth | |
63 | server: number of records for memory semantic | |
64 | */ | |
76cc5224 | 65 | struct remote_u rmt_us[FIO_RDMA_MAX_IO_DEPTH]; |
21b8aee8 | 66 | }; |
67 | ||
68 | struct rdma_io_u_data { | |
69 | uint64_t wr_id; | |
70 | struct ibv_send_wr sq_wr; | |
71 | struct ibv_recv_wr rq_wr; | |
72 | struct ibv_sge rdma_sgl; | |
73 | }; | |
74 | ||
75 | struct rdmaio_data { | |
76 | int is_client; | |
77 | enum rdma_io_mode rdma_protocol; | |
78 | char host[64]; | |
79 | struct sockaddr_in addr; | |
80 | ||
81 | struct ibv_recv_wr rq_wr; | |
82 | struct ibv_sge recv_sgl; | |
83 | struct rdma_info_blk recv_buf; | |
84 | struct ibv_mr *recv_mr; | |
85 | ||
86 | struct ibv_send_wr sq_wr; | |
87 | struct ibv_sge send_sgl; | |
88 | struct rdma_info_blk send_buf; | |
89 | struct ibv_mr *send_mr; | |
90 | ||
91 | struct ibv_comp_channel *channel; | |
92 | struct ibv_cq *cq; | |
93 | struct ibv_pd *pd; | |
94 | struct ibv_qp *qp; | |
95 | ||
96 | pthread_t cmthread; | |
97 | struct rdma_event_channel *cm_channel; | |
98 | struct rdma_cm_id *cm_id; | |
99 | struct rdma_cm_id *child_cm_id; | |
100 | ||
101 | int cq_event_num; | |
102 | ||
103 | struct remote_u *rmt_us; | |
104 | int rmt_nr; | |
105 | struct io_u **io_us_queued; | |
106 | int io_u_queued_nr; | |
107 | struct io_u **io_us_flight; | |
108 | int io_u_flight_nr; | |
109 | struct io_u **io_us_completed; | |
110 | int io_u_completed_nr; | |
111 | }; | |
112 | ||
113 | static int client_recv(struct thread_data *td, struct ibv_wc *wc) | |
114 | { | |
115 | struct rdmaio_data *rd = td->io_ops->data; | |
116 | ||
117 | if (wc->byte_len != sizeof(rd->recv_buf)) { | |
b6cf38f0 | 118 | log_err("Received bogus data, size %d\n", wc->byte_len); |
21b8aee8 | 119 | return 1; |
120 | } | |
121 | ||
122 | /* store mr info for MEMORY semantic */ | |
123 | if ((rd->rdma_protocol == FIO_RDMA_MEM_WRITE) || | |
124 | (rd->rdma_protocol == FIO_RDMA_MEM_READ)) { | |
125 | /* struct flist_head *entry; */ | |
126 | int i = 0; | |
127 | ||
128 | rd->rmt_nr = ntohl(rd->recv_buf.nr); | |
129 | ||
130 | for (i = 0; i < rd->rmt_nr; i++) { | |
131 | rd->rmt_us[i].buf = ntohll(rd->recv_buf.rmt_us[i].buf); | |
132 | rd->rmt_us[i].rkey = ntohl(rd->recv_buf.rmt_us[i].rkey); | |
133 | rd->rmt_us[i].size = ntohl(rd->recv_buf.rmt_us[i].size); | |
134 | ||
135 | dprint(FD_IO, | |
136 | "fio: Received rkey %x addr %" PRIx64 | |
137 | " len %d from peer\n", rd->rmt_us[i].rkey, | |
138 | rd->rmt_us[i].buf, rd->rmt_us[i].size); | |
139 | } | |
140 | } | |
141 | ||
142 | return 0; | |
143 | } | |
144 | ||
145 | static int server_recv(struct thread_data *td, struct ibv_wc *wc) | |
146 | { | |
147 | struct rdmaio_data *rd = td->io_ops->data; | |
148 | ||
76cc5224 | 149 | if (wc->wr_id == FIO_RDMA_MAX_IO_DEPTH) { |
21b8aee8 | 150 | rd->rdma_protocol = ntohl(rd->recv_buf.mode); |
151 | ||
152 | /* CHANNEL semantic, do nothing */ | |
153 | if (rd->rdma_protocol == FIO_RDMA_CHA_SEND) | |
154 | rd->rdma_protocol = FIO_RDMA_CHA_RECV; | |
155 | } | |
156 | ||
157 | return 0; | |
158 | } | |
159 | ||
160 | static int cq_event_handler(struct thread_data *td, enum ibv_wc_opcode opcode) | |
161 | { | |
162 | struct rdmaio_data *rd = td->io_ops->data; | |
163 | struct ibv_wc wc; | |
164 | struct rdma_io_u_data *r_io_u_d; | |
165 | int ret; | |
166 | int compevnum = 0; | |
167 | int i; | |
168 | ||
169 | while ((ret = ibv_poll_cq(rd->cq, 1, &wc)) == 1) { | |
170 | ret = 0; | |
171 | compevnum++; | |
172 | ||
173 | if (wc.status) { | |
174 | log_err("fio: cq completion status %d(%s)\n", | |
175 | wc.status, ibv_wc_status_str(wc.status)); | |
176 | return -1; | |
177 | } | |
178 | ||
179 | switch (wc.opcode) { | |
180 | ||
181 | case IBV_WC_RECV: | |
182 | if (rd->is_client == 1) | |
183 | client_recv(td, &wc); | |
184 | else | |
185 | server_recv(td, &wc); | |
186 | ||
76cc5224 | 187 | if (wc.wr_id == FIO_RDMA_MAX_IO_DEPTH) |
21b8aee8 | 188 | break; |
189 | ||
190 | for (i = 0; i < rd->io_u_flight_nr; i++) { | |
191 | r_io_u_d = rd->io_us_flight[i]->engine_data; | |
192 | ||
193 | if (wc.wr_id == r_io_u_d->rq_wr.wr_id) { | |
194 | rd->io_us_flight[i]->resid = | |
195 | rd->io_us_flight[i]->buflen | |
196 | - wc.byte_len; | |
197 | ||
198 | rd->io_us_flight[i]->error = 0; | |
199 | ||
200 | rd->io_us_completed[rd-> | |
201 | io_u_completed_nr] | |
202 | = rd->io_us_flight[i]; | |
203 | rd->io_u_completed_nr++; | |
204 | break; | |
205 | } | |
206 | } | |
207 | if (i == rd->io_u_flight_nr) | |
e07f72d3 | 208 | log_err("fio: recv wr %" PRId64 " not found\n", |
21b8aee8 | 209 | wc.wr_id); |
210 | else { | |
211 | /* put the last one into middle of the list */ | |
212 | rd->io_us_flight[i] = | |
213 | rd->io_us_flight[rd->io_u_flight_nr - 1]; | |
214 | rd->io_u_flight_nr--; | |
215 | } | |
216 | ||
217 | break; | |
218 | ||
219 | case IBV_WC_SEND: | |
220 | case IBV_WC_RDMA_WRITE: | |
221 | case IBV_WC_RDMA_READ: | |
76cc5224 | 222 | if (wc.wr_id == FIO_RDMA_MAX_IO_DEPTH) |
21b8aee8 | 223 | break; |
224 | ||
225 | for (i = 0; i < rd->io_u_flight_nr; i++) { | |
226 | r_io_u_d = rd->io_us_flight[i]->engine_data; | |
227 | ||
228 | if (wc.wr_id == r_io_u_d->sq_wr.wr_id) { | |
229 | rd->io_us_completed[rd-> | |
230 | io_u_completed_nr] | |
231 | = rd->io_us_flight[i]; | |
232 | rd->io_u_completed_nr++; | |
233 | break; | |
234 | } | |
235 | } | |
236 | if (i == rd->io_u_flight_nr) | |
e07f72d3 | 237 | log_err("fio: send wr %" PRId64 " not found\n", |
21b8aee8 | 238 | wc.wr_id); |
239 | else { | |
240 | /* put the last one into middle of the list */ | |
241 | rd->io_us_flight[i] = | |
242 | rd->io_us_flight[rd->io_u_flight_nr - 1]; | |
243 | rd->io_u_flight_nr--; | |
244 | } | |
245 | ||
246 | break; | |
247 | ||
248 | default: | |
249 | log_info("fio: unknown completion event %d\n", | |
250 | wc.opcode); | |
251 | return -1; | |
252 | } | |
253 | rd->cq_event_num++; | |
254 | } | |
255 | if (ret) { | |
256 | log_err("fio: poll error %d\n", ret); | |
257 | return 1; | |
258 | } | |
259 | ||
260 | return compevnum; | |
261 | } | |
262 | ||
263 | /* | |
264 | * Return -1 for error and 'nr events' for a positive number | |
265 | * of events | |
266 | */ | |
267 | static int rdma_poll_wait(struct thread_data *td, enum ibv_wc_opcode opcode) | |
268 | { | |
269 | struct rdmaio_data *rd = td->io_ops->data; | |
270 | struct ibv_cq *ev_cq; | |
271 | void *ev_ctx; | |
272 | int ret; | |
273 | ||
274 | if (rd->cq_event_num > 0) { /* previous left */ | |
275 | rd->cq_event_num--; | |
276 | return 0; | |
277 | } | |
278 | ||
279 | again: | |
280 | if (ibv_get_cq_event(rd->channel, &ev_cq, &ev_ctx) != 0) { | |
281 | log_err("fio: Failed to get cq event!\n"); | |
282 | return -1; | |
283 | } | |
284 | if (ev_cq != rd->cq) { | |
285 | log_err("fio: Unknown CQ!\n"); | |
286 | return -1; | |
287 | } | |
288 | if (ibv_req_notify_cq(rd->cq, 0) != 0) { | |
289 | log_err("fio: Failed to set notify!\n"); | |
290 | return -1; | |
291 | } | |
292 | ||
293 | ret = cq_event_handler(td, opcode); | |
294 | if (ret < 1) | |
295 | goto again; | |
296 | ||
297 | ibv_ack_cq_events(rd->cq, ret); | |
298 | ||
299 | rd->cq_event_num--; | |
300 | ||
301 | return ret; | |
302 | } | |
303 | ||
304 | static int fio_rdmaio_setup_qp(struct thread_data *td) | |
305 | { | |
306 | struct rdmaio_data *rd = td->io_ops->data; | |
307 | struct ibv_qp_init_attr init_attr; | |
308 | int qp_depth = td->o.iodepth * 2; /* 2 times of io depth */ | |
309 | ||
310 | if (rd->is_client == 0) | |
311 | rd->pd = ibv_alloc_pd(rd->child_cm_id->verbs); | |
312 | else | |
313 | rd->pd = ibv_alloc_pd(rd->cm_id->verbs); | |
314 | if (rd->pd == NULL) { | |
315 | log_err("fio: ibv_alloc_pd fail\n"); | |
316 | return 1; | |
317 | } | |
318 | ||
319 | if (rd->is_client == 0) | |
320 | rd->channel = ibv_create_comp_channel(rd->child_cm_id->verbs); | |
321 | else | |
322 | rd->channel = ibv_create_comp_channel(rd->cm_id->verbs); | |
323 | if (rd->channel == NULL) { | |
324 | log_err("fio: ibv_create_comp_channel fail\n"); | |
325 | goto err1; | |
326 | } | |
327 | ||
328 | if (qp_depth < 16) | |
329 | qp_depth = 16; | |
330 | ||
331 | if (rd->is_client == 0) | |
332 | rd->cq = ibv_create_cq(rd->child_cm_id->verbs, | |
333 | qp_depth, rd, rd->channel, 0); | |
334 | else | |
335 | rd->cq = ibv_create_cq(rd->cm_id->verbs, | |
336 | qp_depth, rd, rd->channel, 0); | |
337 | if (rd->cq == NULL) { | |
338 | log_err("fio: ibv_create_cq failed\n"); | |
339 | goto err2; | |
340 | } | |
341 | ||
342 | if (ibv_req_notify_cq(rd->cq, 0) != 0) { | |
343 | log_err("fio: ibv_create_cq failed\n"); | |
344 | goto err3; | |
345 | } | |
346 | ||
347 | /* create queue pair */ | |
348 | memset(&init_attr, 0, sizeof(init_attr)); | |
349 | init_attr.cap.max_send_wr = qp_depth; | |
350 | init_attr.cap.max_recv_wr = qp_depth; | |
351 | init_attr.cap.max_recv_sge = 1; | |
352 | init_attr.cap.max_send_sge = 1; | |
353 | init_attr.qp_type = IBV_QPT_RC; | |
354 | init_attr.send_cq = rd->cq; | |
355 | init_attr.recv_cq = rd->cq; | |
356 | ||
357 | if (rd->is_client == 0) { | |
358 | if (rdma_create_qp(rd->child_cm_id, rd->pd, &init_attr) != 0) { | |
359 | log_err("fio: rdma_create_qp failed\n"); | |
360 | goto err3; | |
361 | } | |
362 | rd->qp = rd->child_cm_id->qp; | |
363 | } else { | |
364 | if (rdma_create_qp(rd->cm_id, rd->pd, &init_attr) != 0) { | |
365 | log_err("fio: rdma_create_qp failed\n"); | |
366 | goto err3; | |
367 | } | |
368 | rd->qp = rd->cm_id->qp; | |
369 | } | |
370 | ||
371 | return 0; | |
372 | ||
373 | err3: | |
374 | ibv_destroy_cq(rd->cq); | |
375 | err2: | |
376 | ibv_destroy_comp_channel(rd->channel); | |
377 | err1: | |
378 | ibv_dealloc_pd(rd->pd); | |
379 | ||
380 | return 1; | |
381 | } | |
382 | ||
383 | static int fio_rdmaio_setup_control_msg_buffers(struct thread_data *td) | |
384 | { | |
385 | struct rdmaio_data *rd = td->io_ops->data; | |
386 | ||
387 | rd->recv_mr = ibv_reg_mr(rd->pd, &rd->recv_buf, sizeof(rd->recv_buf), | |
388 | IBV_ACCESS_LOCAL_WRITE); | |
389 | if (rd->recv_mr == NULL) { | |
390 | log_err("fio: recv_buf reg_mr failed\n"); | |
391 | return 1; | |
392 | } | |
393 | ||
394 | rd->send_mr = ibv_reg_mr(rd->pd, &rd->send_buf, sizeof(rd->send_buf), | |
395 | 0); | |
396 | if (rd->send_mr == NULL) { | |
397 | log_err("fio: send_buf reg_mr failed\n"); | |
398 | ibv_dereg_mr(rd->recv_mr); | |
399 | return 1; | |
400 | } | |
401 | ||
402 | /* setup work request */ | |
403 | /* recv wq */ | |
404 | rd->recv_sgl.addr = (uint64_t) (unsigned long)&rd->recv_buf; | |
405 | rd->recv_sgl.length = sizeof rd->recv_buf; | |
406 | rd->recv_sgl.lkey = rd->recv_mr->lkey; | |
407 | rd->rq_wr.sg_list = &rd->recv_sgl; | |
408 | rd->rq_wr.num_sge = 1; | |
76cc5224 | 409 | rd->rq_wr.wr_id = FIO_RDMA_MAX_IO_DEPTH; |
21b8aee8 | 410 | |
411 | /* send wq */ | |
412 | rd->send_sgl.addr = (uint64_t) (unsigned long)&rd->send_buf; | |
413 | rd->send_sgl.length = sizeof rd->send_buf; | |
414 | rd->send_sgl.lkey = rd->send_mr->lkey; | |
415 | ||
416 | rd->sq_wr.opcode = IBV_WR_SEND; | |
417 | rd->sq_wr.send_flags = IBV_SEND_SIGNALED; | |
418 | rd->sq_wr.sg_list = &rd->send_sgl; | |
419 | rd->sq_wr.num_sge = 1; | |
76cc5224 | 420 | rd->sq_wr.wr_id = FIO_RDMA_MAX_IO_DEPTH; |
21b8aee8 | 421 | |
422 | return 0; | |
423 | } | |
424 | ||
425 | static int get_next_channel_event(struct thread_data *td, | |
426 | struct rdma_event_channel *channel, | |
427 | enum rdma_cm_event_type wait_event) | |
428 | { | |
429 | struct rdmaio_data *rd = td->io_ops->data; | |
430 | ||
431 | int ret; | |
432 | struct rdma_cm_event *event; | |
433 | ||
434 | ret = rdma_get_cm_event(channel, &event); | |
435 | if (ret) { | |
436 | log_err("fio: rdma_get_cm_event"); | |
437 | return 1; | |
438 | } | |
439 | ||
440 | if (event->event != wait_event) { | |
441 | log_err("fio: event is %s instead of %s\n", | |
442 | rdma_event_str(event->event), | |
443 | rdma_event_str(wait_event)); | |
444 | return 1; | |
445 | } | |
446 | ||
447 | switch (event->event) { | |
448 | case RDMA_CM_EVENT_CONNECT_REQUEST: | |
449 | rd->child_cm_id = event->id; | |
450 | break; | |
451 | default: | |
452 | break; | |
453 | } | |
454 | ||
455 | rdma_ack_cm_event(event); | |
456 | ||
457 | return 0; | |
458 | } | |
459 | ||
460 | static int fio_rdmaio_prep(struct thread_data *td, struct io_u *io_u) | |
461 | { | |
462 | struct rdmaio_data *rd = td->io_ops->data; | |
463 | struct rdma_io_u_data *r_io_u_d; | |
464 | ||
465 | r_io_u_d = io_u->engine_data; | |
466 | ||
467 | switch (rd->rdma_protocol) { | |
468 | case FIO_RDMA_MEM_WRITE: | |
469 | case FIO_RDMA_MEM_READ: | |
470 | r_io_u_d->rdma_sgl.addr = (uint64_t) (unsigned long)io_u->buf; | |
471 | r_io_u_d->rdma_sgl.lkey = io_u->mr->lkey; | |
472 | r_io_u_d->sq_wr.wr_id = r_io_u_d->wr_id; | |
473 | r_io_u_d->sq_wr.send_flags = IBV_SEND_SIGNALED; | |
474 | r_io_u_d->sq_wr.sg_list = &r_io_u_d->rdma_sgl; | |
475 | r_io_u_d->sq_wr.num_sge = 1; | |
476 | break; | |
477 | case FIO_RDMA_CHA_SEND: | |
478 | r_io_u_d->rdma_sgl.addr = (uint64_t) (unsigned long)io_u->buf; | |
479 | r_io_u_d->rdma_sgl.lkey = io_u->mr->lkey; | |
480 | r_io_u_d->rdma_sgl.length = io_u->buflen; | |
481 | r_io_u_d->sq_wr.wr_id = r_io_u_d->wr_id; | |
482 | r_io_u_d->sq_wr.opcode = IBV_WR_SEND; | |
483 | r_io_u_d->sq_wr.send_flags = IBV_SEND_SIGNALED; | |
484 | r_io_u_d->sq_wr.sg_list = &r_io_u_d->rdma_sgl; | |
485 | r_io_u_d->sq_wr.num_sge = 1; | |
486 | break; | |
487 | case FIO_RDMA_CHA_RECV: | |
488 | r_io_u_d->rdma_sgl.addr = (uint64_t) (unsigned long)io_u->buf; | |
489 | r_io_u_d->rdma_sgl.lkey = io_u->mr->lkey; | |
490 | r_io_u_d->rdma_sgl.length = io_u->buflen; | |
491 | r_io_u_d->rq_wr.wr_id = r_io_u_d->wr_id; | |
492 | r_io_u_d->rq_wr.sg_list = &r_io_u_d->rdma_sgl; | |
493 | r_io_u_d->rq_wr.num_sge = 1; | |
494 | break; | |
495 | default: | |
496 | log_err("fio: unknown rdma protocol - %d\n", rd->rdma_protocol); | |
497 | break; | |
498 | } | |
499 | ||
500 | return 0; | |
501 | } | |
502 | ||
503 | static struct io_u *fio_rdmaio_event(struct thread_data *td, int event) | |
504 | { | |
505 | struct rdmaio_data *rd = td->io_ops->data; | |
506 | struct io_u *io_u; | |
507 | int i; | |
508 | ||
509 | io_u = rd->io_us_completed[0]; | |
510 | for (i = 0; i < rd->io_u_completed_nr - 1; i++) { | |
511 | rd->io_us_completed[i] = rd->io_us_completed[i + 1]; | |
512 | } | |
513 | rd->io_u_completed_nr--; | |
514 | ||
515 | dprint_io_u(io_u, "fio_rdmaio_event"); | |
516 | ||
517 | return io_u; | |
518 | } | |
519 | ||
520 | static int fio_rdmaio_getevents(struct thread_data *td, unsigned int min, | |
521 | unsigned int max, struct timespec *t) | |
522 | { | |
523 | struct rdmaio_data *rd = td->io_ops->data; | |
524 | int r; | |
525 | enum ibv_wc_opcode comp_opcode; | |
526 | comp_opcode = IBV_WC_RDMA_WRITE; | |
527 | struct ibv_cq *ev_cq; | |
528 | void *ev_ctx; | |
529 | int ret; | |
530 | ||
531 | r = 0; | |
532 | ||
533 | switch (rd->rdma_protocol) { | |
534 | case FIO_RDMA_MEM_WRITE: | |
535 | comp_opcode = IBV_WC_RDMA_WRITE; | |
536 | break; | |
537 | case FIO_RDMA_MEM_READ: | |
538 | comp_opcode = IBV_WC_RDMA_READ; | |
539 | break; | |
540 | case FIO_RDMA_CHA_SEND: | |
541 | comp_opcode = IBV_WC_SEND; | |
542 | break; | |
543 | case FIO_RDMA_CHA_RECV: | |
544 | comp_opcode = IBV_WC_RECV; | |
545 | break; | |
546 | default: | |
547 | log_err("fio: unknown rdma protocol - %d\n", rd->rdma_protocol); | |
548 | break; | |
549 | } | |
550 | ||
551 | if (rd->cq_event_num > 0) { /* previous left */ | |
552 | rd->cq_event_num--; | |
553 | return 0; | |
554 | } | |
555 | ||
556 | again: | |
557 | if (ibv_get_cq_event(rd->channel, &ev_cq, &ev_ctx) != 0) { | |
558 | log_err("fio: Failed to get cq event!\n"); | |
559 | return -1; | |
560 | } | |
561 | if (ev_cq != rd->cq) { | |
562 | log_err("fio: Unknown CQ!\n"); | |
563 | return -1; | |
564 | } | |
565 | if (ibv_req_notify_cq(rd->cq, 0) != 0) { | |
566 | log_err("fio: Failed to set notify!\n"); | |
567 | return -1; | |
568 | } | |
569 | ||
570 | ret = cq_event_handler(td, comp_opcode); | |
571 | if (ret < 1) | |
572 | goto again; | |
573 | ||
574 | ibv_ack_cq_events(rd->cq, ret); | |
575 | ||
576 | r += ret; | |
577 | if (r < min) | |
578 | goto again; | |
579 | ||
580 | rd->cq_event_num -= r; | |
581 | ||
582 | return r; | |
583 | } | |
584 | ||
585 | static int fio_rdmaio_send(struct thread_data *td, struct io_u **io_us, | |
586 | unsigned int nr) | |
587 | { | |
588 | struct rdmaio_data *rd = td->io_ops->data; | |
589 | struct ibv_send_wr *bad_wr; | |
e07f72d3 | 590 | #if 0 |
21b8aee8 | 591 | enum ibv_wc_opcode comp_opcode; |
592 | comp_opcode = IBV_WC_RDMA_WRITE; | |
e07f72d3 | 593 | #endif |
21b8aee8 | 594 | int i, index; |
595 | struct rdma_io_u_data *r_io_u_d; | |
596 | ||
597 | r_io_u_d = NULL; | |
598 | ||
599 | for (i = 0; i < nr; i++) { | |
600 | /* RDMA_WRITE or RDMA_READ */ | |
601 | switch (rd->rdma_protocol) { | |
602 | case FIO_RDMA_MEM_WRITE: | |
603 | /* compose work request */ | |
604 | r_io_u_d = io_us[i]->engine_data; | |
605 | index = rand() % rd->rmt_nr; | |
606 | r_io_u_d->sq_wr.opcode = IBV_WR_RDMA_WRITE; | |
607 | r_io_u_d->sq_wr.wr.rdma.rkey = rd->rmt_us[index].rkey; | |
b6cf38f0 YR |
608 | r_io_u_d->sq_wr.wr.rdma.remote_addr = \ |
609 | rd->rmt_us[index].buf; | |
21b8aee8 | 610 | r_io_u_d->sq_wr.sg_list->length = io_us[i]->buflen; |
611 | break; | |
612 | case FIO_RDMA_MEM_READ: | |
613 | /* compose work request */ | |
614 | r_io_u_d = io_us[i]->engine_data; | |
615 | index = rand() % rd->rmt_nr; | |
616 | r_io_u_d->sq_wr.opcode = IBV_WR_RDMA_READ; | |
617 | r_io_u_d->sq_wr.wr.rdma.rkey = rd->rmt_us[index].rkey; | |
b6cf38f0 YR |
618 | r_io_u_d->sq_wr.wr.rdma.remote_addr = \ |
619 | rd->rmt_us[index].buf; | |
21b8aee8 | 620 | r_io_u_d->sq_wr.sg_list->length = io_us[i]->buflen; |
621 | break; | |
622 | case FIO_RDMA_CHA_SEND: | |
623 | r_io_u_d = io_us[i]->engine_data; | |
624 | r_io_u_d->sq_wr.opcode = IBV_WR_SEND; | |
625 | r_io_u_d->sq_wr.send_flags = IBV_SEND_SIGNALED; | |
626 | break; | |
627 | default: | |
628 | log_err("fio: unknown rdma protocol - %d\n", | |
629 | rd->rdma_protocol); | |
630 | break; | |
631 | } | |
632 | ||
633 | if (ibv_post_send(rd->qp, &r_io_u_d->sq_wr, &bad_wr) != 0) { | |
634 | log_err("fio: ibv_post_send fail\n"); | |
635 | return -1; | |
636 | } | |
637 | ||
638 | dprint_io_u(io_us[i], "fio_rdmaio_send"); | |
639 | } | |
640 | ||
641 | /* wait for completion | |
642 | rdma_poll_wait(td, comp_opcode); */ | |
643 | ||
644 | return i; | |
645 | } | |
646 | ||
647 | static int fio_rdmaio_recv(struct thread_data *td, struct io_u **io_us, | |
648 | unsigned int nr) | |
649 | { | |
650 | struct rdmaio_data *rd = td->io_ops->data; | |
651 | struct ibv_recv_wr *bad_wr; | |
652 | struct rdma_io_u_data *r_io_u_d; | |
653 | int i; | |
654 | ||
655 | i = 0; | |
656 | if (rd->rdma_protocol == FIO_RDMA_CHA_RECV) { | |
657 | /* post io_u into recv queue */ | |
658 | for (i = 0; i < nr; i++) { | |
659 | r_io_u_d = io_us[i]->engine_data; | |
660 | if (ibv_post_recv(rd->qp, &r_io_u_d->rq_wr, &bad_wr) != | |
661 | 0) { | |
662 | log_err("fio: ibv_post_recv fail\n"); | |
663 | return 1; | |
664 | } | |
665 | } | |
666 | } else if ((rd->rdma_protocol == FIO_RDMA_MEM_READ) | |
667 | || (rd->rdma_protocol == FIO_RDMA_MEM_WRITE)) { | |
668 | /* re-post the rq_wr */ | |
669 | if (ibv_post_recv(rd->qp, &rd->rq_wr, &bad_wr) != 0) { | |
670 | log_err("fio: ibv_post_recv fail\n"); | |
671 | return 1; | |
672 | } | |
673 | ||
674 | rdma_poll_wait(td, IBV_WC_RECV); | |
675 | ||
676 | dprint(FD_IO, "fio: recv FINISH message\n"); | |
677 | exit(0); | |
678 | } | |
679 | ||
680 | return i; | |
681 | } | |
682 | ||
683 | static int fio_rdmaio_queue(struct thread_data *td, struct io_u *io_u) | |
684 | { | |
685 | struct rdmaio_data *rd = td->io_ops->data; | |
686 | ||
687 | fio_ro_check(td, io_u); | |
688 | ||
689 | if (rd->io_u_queued_nr == (int)td->o.iodepth) | |
690 | return FIO_Q_BUSY; | |
691 | ||
692 | rd->io_us_queued[rd->io_u_queued_nr] = io_u; | |
693 | rd->io_u_queued_nr++; | |
694 | ||
695 | dprint_io_u(io_u, "fio_rdmaio_queue"); | |
696 | ||
697 | return FIO_Q_QUEUED; | |
698 | } | |
699 | ||
700 | static void fio_rdmaio_queued(struct thread_data *td, struct io_u **io_us, | |
701 | unsigned int nr) | |
702 | { | |
703 | struct rdmaio_data *rd = td->io_ops->data; | |
704 | struct timeval now; | |
705 | unsigned int i; | |
706 | ||
707 | if (!fio_fill_issue_time(td)) | |
708 | return; | |
709 | ||
710 | fio_gettime(&now, NULL); | |
711 | ||
712 | for (i = 0; i < nr; i++) { | |
713 | struct io_u *io_u = io_us[i]; | |
714 | ||
715 | /* queued -> flight */ | |
716 | rd->io_us_flight[rd->io_u_flight_nr] = io_u; | |
717 | rd->io_u_flight_nr++; | |
718 | ||
719 | memcpy(&io_u->issue_time, &now, sizeof(now)); | |
720 | io_u_queued(td, io_u); | |
721 | } | |
722 | } | |
723 | ||
724 | static int fio_rdmaio_commit(struct thread_data *td) | |
725 | { | |
726 | struct rdmaio_data *rd = td->io_ops->data; | |
727 | struct io_u **io_us; | |
728 | int ret; | |
729 | ||
730 | if (!rd->io_us_queued) | |
731 | return 0; | |
732 | ||
733 | io_us = rd->io_us_queued; | |
734 | do { | |
735 | /* RDMA_WRITE or RDMA_READ */ | |
736 | if (rd->is_client) { | |
737 | ret = fio_rdmaio_send(td, io_us, rd->io_u_queued_nr); | |
738 | } else if (!rd->is_client) { | |
739 | ret = fio_rdmaio_recv(td, io_us, rd->io_u_queued_nr); | |
740 | } else | |
741 | ret = 0; /* must be a SYNC */ | |
742 | ||
743 | if (ret > 0) { | |
744 | fio_rdmaio_queued(td, io_us, ret); | |
745 | io_u_mark_submit(td, ret); | |
746 | rd->io_u_queued_nr -= ret; | |
747 | io_us += ret; | |
748 | ret = 0; | |
749 | } else | |
750 | break; | |
751 | } while (rd->io_u_queued_nr); | |
752 | ||
753 | return ret; | |
754 | } | |
755 | ||
756 | static int fio_rdmaio_connect(struct thread_data *td, struct fio_file *f) | |
757 | { | |
758 | struct rdmaio_data *rd = td->io_ops->data; | |
759 | struct rdma_conn_param conn_param; | |
760 | struct ibv_send_wr *bad_wr; | |
761 | ||
762 | memset(&conn_param, 0, sizeof conn_param); | |
763 | conn_param.responder_resources = 1; | |
764 | conn_param.initiator_depth = 1; | |
765 | conn_param.retry_count = 10; | |
766 | ||
767 | if (rdma_connect(rd->cm_id, &conn_param) != 0) { | |
768 | log_err("fio: rdma_connect fail\n"); | |
769 | return 1; | |
770 | } | |
771 | ||
772 | if (get_next_channel_event | |
773 | (td, rd->cm_channel, RDMA_CM_EVENT_ESTABLISHED) != 0) { | |
774 | log_err("fio: wait for RDMA_CM_EVENT_ESTABLISHED\n"); | |
775 | return 1; | |
776 | } | |
777 | ||
778 | /* send task request */ | |
779 | rd->send_buf.mode = htonl(rd->rdma_protocol); | |
780 | rd->send_buf.nr = htonl(td->o.iodepth); | |
781 | ||
782 | if (ibv_post_send(rd->qp, &rd->sq_wr, &bad_wr) != 0) { | |
783 | log_err("fio: ibv_post_send fail"); | |
784 | return 1; | |
785 | } | |
786 | ||
787 | rdma_poll_wait(td, IBV_WC_SEND); | |
788 | ||
789 | /* wait for remote MR info from server side */ | |
790 | rdma_poll_wait(td, IBV_WC_RECV); | |
791 | ||
792 | return 0; | |
793 | } | |
794 | ||
795 | static int fio_rdmaio_accept(struct thread_data *td, struct fio_file *f) | |
796 | { | |
797 | struct rdmaio_data *rd = td->io_ops->data; | |
798 | struct rdma_conn_param conn_param; | |
799 | struct ibv_send_wr *bad_wr; | |
800 | ||
801 | /* rdma_accept() - then wait for accept success */ | |
802 | memset(&conn_param, 0, sizeof conn_param); | |
803 | conn_param.responder_resources = 1; | |
804 | conn_param.initiator_depth = 1; | |
805 | ||
806 | if (rdma_accept(rd->child_cm_id, &conn_param) != 0) { | |
807 | log_err("fio: rdma_accept\n"); | |
808 | return 1; | |
809 | } | |
810 | ||
811 | if (get_next_channel_event | |
812 | (td, rd->cm_channel, RDMA_CM_EVENT_ESTABLISHED) != 0) { | |
813 | log_err("fio: wait for RDMA_CM_EVENT_ESTABLISHED\n"); | |
814 | return 1; | |
815 | } | |
816 | ||
817 | /* wait for request */ | |
818 | rdma_poll_wait(td, IBV_WC_RECV); | |
819 | ||
820 | if (ibv_post_send(rd->qp, &rd->sq_wr, &bad_wr) != 0) { | |
821 | log_err("fio: ibv_post_send fail"); | |
822 | return 1; | |
823 | } | |
824 | ||
825 | rdma_poll_wait(td, IBV_WC_SEND); | |
826 | ||
827 | return 0; | |
828 | } | |
829 | ||
830 | static int fio_rdmaio_open_file(struct thread_data *td, struct fio_file *f) | |
831 | { | |
832 | if (td_read(td)) | |
833 | return fio_rdmaio_accept(td, f); | |
834 | else | |
835 | return fio_rdmaio_connect(td, f); | |
836 | } | |
837 | ||
838 | static int fio_rdmaio_close_file(struct thread_data *td, struct fio_file *f) | |
839 | { | |
840 | struct rdmaio_data *rd = td->io_ops->data; | |
841 | struct ibv_send_wr *bad_wr; | |
842 | ||
843 | /* unregister rdma buffer */ | |
844 | ||
845 | /* | |
846 | * Client sends notification to the server side | |
847 | */ | |
848 | /* refer to: http://linux.die.net/man/7/rdma_cm */ | |
849 | if ((rd->is_client == 1) && ((rd->rdma_protocol == FIO_RDMA_MEM_WRITE) | |
850 | || (rd->rdma_protocol == | |
851 | FIO_RDMA_MEM_READ))) { | |
852 | if (ibv_post_send(rd->qp, &rd->sq_wr, &bad_wr) != 0) { | |
853 | log_err("fio: ibv_post_send fail"); | |
854 | return 1; | |
855 | } | |
856 | ||
857 | dprint(FD_IO, "fio: close infomation sent success\n"); | |
858 | rdma_poll_wait(td, IBV_WC_SEND); | |
859 | } | |
860 | ||
861 | if (rd->is_client == 1) | |
862 | rdma_disconnect(rd->cm_id); | |
863 | else { | |
864 | rdma_disconnect(rd->child_cm_id); | |
865 | /* rdma_disconnect(rd->cm_id); */ | |
866 | } | |
867 | ||
868 | /* if (get_next_channel_event(td, rd->cm_channel, RDMA_CM_EVENT_DISCONNECTED) != 0) | |
869 | { | |
870 | log_err("fio: wait for RDMA_CM_EVENT_DISCONNECTED\n"); | |
871 | return 1; | |
872 | }*/ | |
873 | ||
874 | ibv_destroy_qp(rd->qp); | |
875 | ibv_destroy_cq(rd->cq); | |
876 | ||
877 | if (rd->is_client == 1) | |
878 | rdma_destroy_id(rd->cm_id); | |
879 | else { | |
880 | rdma_destroy_id(rd->child_cm_id); | |
881 | rdma_destroy_id(rd->cm_id); | |
882 | } | |
883 | ||
884 | ibv_destroy_comp_channel(rd->channel); | |
885 | ibv_dealloc_pd(rd->pd); | |
886 | ||
887 | return 0; | |
888 | } | |
889 | ||
890 | static int fio_rdmaio_setup_connect(struct thread_data *td, const char *host, | |
891 | unsigned short port) | |
892 | { | |
893 | struct rdmaio_data *rd = td->io_ops->data; | |
894 | struct ibv_recv_wr *bad_wr; | |
895 | ||
896 | rd->addr.sin_family = AF_INET; | |
897 | rd->addr.sin_port = htons(port); | |
898 | ||
899 | if (inet_aton(host, &rd->addr.sin_addr) != 1) { | |
900 | struct hostent *hent; | |
901 | ||
902 | hent = gethostbyname(host); | |
903 | if (!hent) { | |
904 | td_verror(td, errno, "gethostbyname"); | |
905 | return 1; | |
906 | } | |
907 | ||
908 | memcpy(&rd->addr.sin_addr, hent->h_addr, 4); | |
909 | } | |
910 | ||
911 | /* resolve route */ | |
912 | if (rdma_resolve_addr(rd->cm_id, NULL, | |
913 | (struct sockaddr *)&rd->addr, 2000) != 0) { | |
914 | log_err("fio: rdma_resolve_addr"); | |
915 | return 1; | |
916 | } | |
917 | ||
918 | if (get_next_channel_event | |
919 | (td, rd->cm_channel, RDMA_CM_EVENT_ADDR_RESOLVED) | |
920 | != 0) { | |
921 | log_err("fio: get_next_channel_event"); | |
922 | return 1; | |
923 | } | |
924 | ||
925 | /* resolve route */ | |
926 | if (rdma_resolve_route(rd->cm_id, 2000) != 0) { | |
927 | log_err("fio: rdma_resolve_route"); | |
928 | return 1; | |
929 | } | |
930 | ||
931 | if (get_next_channel_event | |
932 | (td, rd->cm_channel, RDMA_CM_EVENT_ROUTE_RESOLVED) != 0) { | |
933 | log_err("fio: get_next_channel_event"); | |
934 | return 1; | |
935 | } | |
936 | ||
937 | /* create qp and buffer */ | |
938 | if (fio_rdmaio_setup_qp(td) != 0) | |
939 | return 1; | |
940 | ||
941 | if (fio_rdmaio_setup_control_msg_buffers(td) != 0) | |
942 | return 1; | |
943 | ||
944 | /* post recv buf */ | |
945 | if (ibv_post_recv(rd->qp, &rd->rq_wr, &bad_wr) != 0) { | |
946 | log_err("fio: ibv_post_recv fail\n"); | |
947 | return 1; | |
948 | } | |
949 | ||
950 | return 0; | |
951 | } | |
952 | ||
953 | static int fio_rdmaio_setup_listen(struct thread_data *td, short port) | |
954 | { | |
955 | struct rdmaio_data *rd = td->io_ops->data; | |
956 | struct ibv_recv_wr *bad_wr; | |
957 | ||
958 | rd->addr.sin_family = AF_INET; | |
959 | rd->addr.sin_addr.s_addr = htonl(INADDR_ANY); | |
960 | rd->addr.sin_port = htons(port); | |
961 | ||
962 | /* rdma_listen */ | |
963 | if (rdma_bind_addr(rd->cm_id, (struct sockaddr *)&rd->addr) != 0) { | |
964 | log_err("fio: rdma_bind_addr fail\n"); | |
965 | return 1; | |
966 | } | |
967 | ||
968 | if (rdma_listen(rd->cm_id, 3) != 0) { | |
969 | log_err("fio: rdma_listen fail\n"); | |
970 | return 1; | |
971 | } | |
972 | ||
973 | /* wait for CONNECT_REQUEST */ | |
974 | if (get_next_channel_event | |
975 | (td, rd->cm_channel, RDMA_CM_EVENT_CONNECT_REQUEST) != 0) { | |
976 | log_err("fio: wait for RDMA_CM_EVENT_CONNECT_REQUEST\n"); | |
977 | return 1; | |
978 | } | |
979 | ||
980 | if (fio_rdmaio_setup_qp(td) != 0) | |
981 | return 1; | |
982 | ||
983 | if (fio_rdmaio_setup_control_msg_buffers(td) != 0) | |
984 | return 1; | |
985 | ||
986 | /* post recv buf */ | |
987 | if (ibv_post_recv(rd->qp, &rd->rq_wr, &bad_wr) != 0) { | |
988 | log_err("fio: ibv_post_recv fail\n"); | |
989 | return 1; | |
990 | } | |
991 | ||
992 | return 0; | |
993 | } | |
994 | ||
995 | static int fio_rdmaio_init(struct thread_data *td) | |
996 | { | |
997 | struct rdmaio_data *rd = td->io_ops->data; | |
998 | unsigned int port; | |
999 | char host[64], buf[128]; | |
1000 | char *sep, *portp, *modep; | |
1001 | int ret; | |
1002 | struct rlimit rl; | |
1003 | ||
1004 | if (td_rw(td)) { | |
1005 | log_err("fio: rdma connections must be read OR write\n"); | |
1006 | return 1; | |
1007 | } | |
1008 | if (td_random(td)) { | |
1009 | log_err("fio: RDMA network IO can't be random\n"); | |
1010 | return 1; | |
1011 | } | |
1012 | ||
1013 | /* check RLIMIT_MEMLOCK */ | |
1014 | if (getrlimit(RLIMIT_MEMLOCK, &rl) != 0) { | |
1015 | log_err("fio: getrlimit fail: %d(%s)\n", | |
1016 | errno, strerror(errno)); | |
1017 | return 1; | |
1018 | } | |
1019 | ||
1020 | /* soft limit */ | |
1021 | if ((rl.rlim_cur != RLIM_INFINITY) | |
1022 | && (rl.rlim_cur < td->orig_buffer_size)) { | |
e07f72d3 BVA |
1023 | log_err("fio: soft RLIMIT_MEMLOCK is: %" PRId64 "\n", |
1024 | rl.rlim_cur); | |
1025 | log_err("fio: total block size is: %zd\n", | |
21b8aee8 | 1026 | td->orig_buffer_size); |
1027 | /* try to set larger RLIMIT_MEMLOCK */ | |
1028 | rl.rlim_cur = rl.rlim_max; | |
1029 | if (setrlimit(RLIMIT_MEMLOCK, &rl) != 0) { | |
1030 | log_err("fio: setrlimit fail: %d(%s)\n", | |
1031 | errno, strerror(errno)); | |
1032 | log_err("fio: you may try enlarge MEMLOCK by root\n"); | |
1033 | log_err("# ulimit -l unlimited\n"); | |
1034 | return 1; | |
1035 | } | |
1036 | } | |
1037 | ||
1038 | strcpy(buf, td->o.filename); | |
1039 | ||
1040 | sep = strchr(buf, '/'); | |
1041 | if (!sep) | |
1042 | goto bad_host; | |
1043 | ||
1044 | *sep = '\0'; | |
1045 | sep++; | |
1046 | strcpy(host, buf); | |
1047 | if (!strlen(host)) | |
1048 | goto bad_host; | |
1049 | ||
1050 | modep = NULL; | |
1051 | portp = sep; | |
1052 | sep = strchr(portp, '/'); | |
1053 | if (sep) { | |
1054 | *sep = '\0'; | |
1055 | modep = sep + 1; | |
1056 | } | |
1057 | ||
1058 | port = strtol(portp, NULL, 10); | |
1059 | if (!port || port > 65535) | |
1060 | goto bad_host; | |
1061 | ||
1062 | if (modep) { | |
1063 | if (!strncmp("rdma_write", modep, strlen(modep)) || | |
1064 | !strncmp("RDMA_WRITE", modep, strlen(modep))) | |
1065 | rd->rdma_protocol = FIO_RDMA_MEM_WRITE; | |
1066 | else if (!strncmp("rdma_read", modep, strlen(modep)) || | |
1067 | !strncmp("RDMA_READ", modep, strlen(modep))) | |
1068 | rd->rdma_protocol = FIO_RDMA_MEM_READ; | |
1069 | else if (!strncmp("send", modep, strlen(modep)) || | |
1070 | !strncmp("SEND", modep, strlen(modep))) | |
1071 | rd->rdma_protocol = FIO_RDMA_CHA_SEND; | |
1072 | else | |
1073 | goto bad_host; | |
1074 | } else | |
1075 | rd->rdma_protocol = FIO_RDMA_MEM_WRITE; | |
1076 | ||
1077 | rd->cq_event_num = 0; | |
1078 | ||
1079 | rd->cm_channel = rdma_create_event_channel(); | |
1080 | if (!rd->cm_channel) { | |
1081 | log_err("fio: rdma_create_event_channel fail\n"); | |
1082 | return 1; | |
1083 | } | |
1084 | ||
1085 | ret = rdma_create_id(rd->cm_channel, &rd->cm_id, rd, RDMA_PS_TCP); | |
1086 | if (ret) { | |
1087 | log_err("fio: rdma_create_id fail\n"); | |
1088 | return 1; | |
1089 | } | |
1090 | ||
1091 | if ((rd->rdma_protocol == FIO_RDMA_MEM_WRITE) || | |
1092 | (rd->rdma_protocol == FIO_RDMA_MEM_READ)) { | |
1093 | rd->rmt_us = | |
76cc5224 | 1094 | malloc(FIO_RDMA_MAX_IO_DEPTH * sizeof(struct remote_u)); |
21b8aee8 | 1095 | memset(rd->rmt_us, 0, |
76cc5224 | 1096 | FIO_RDMA_MAX_IO_DEPTH * sizeof(struct remote_u)); |
21b8aee8 | 1097 | rd->rmt_nr = 0; |
1098 | } | |
1099 | ||
1100 | rd->io_us_queued = malloc(td->o.iodepth * sizeof(struct io_u *)); | |
1101 | memset(rd->io_us_queued, 0, td->o.iodepth * sizeof(struct io_u *)); | |
1102 | rd->io_u_queued_nr = 0; | |
1103 | ||
1104 | rd->io_us_flight = malloc(td->o.iodepth * sizeof(struct io_u *)); | |
1105 | memset(rd->io_us_flight, 0, td->o.iodepth * sizeof(struct io_u *)); | |
1106 | rd->io_u_flight_nr = 0; | |
1107 | ||
1108 | rd->io_us_completed = malloc(td->o.iodepth * sizeof(struct io_u *)); | |
1109 | memset(rd->io_us_completed, 0, td->o.iodepth * sizeof(struct io_u *)); | |
1110 | rd->io_u_completed_nr = 0; | |
1111 | ||
1112 | if (td_read(td)) { /* READ as the server */ | |
1113 | rd->is_client = 0; | |
1114 | /* server rd->rdma_buf_len will be setup after got request */ | |
1115 | ret = fio_rdmaio_setup_listen(td, port); | |
1116 | } else { /* WRITE as the client */ | |
1117 | rd->is_client = 1; | |
1118 | ret = fio_rdmaio_setup_connect(td, host, port); | |
1119 | } | |
1120 | ||
1121 | struct flist_head *entry; | |
1122 | unsigned int max_bs; | |
1123 | max_bs = max(td->o.max_bs[DDIR_READ], td->o.max_bs[DDIR_WRITE]); | |
1124 | /* register each io_u in the free list */ | |
1125 | int i = 0; | |
1126 | flist_for_each(entry, &td->io_u_freelist) { | |
1127 | struct io_u *io_u = flist_entry(entry, struct io_u, list); | |
1128 | ||
1129 | io_u->engine_data = malloc(sizeof(struct rdma_io_u_data)); | |
1130 | memset(io_u->engine_data, 0, sizeof(struct rdma_io_u_data)); | |
1131 | ((struct rdma_io_u_data *)io_u->engine_data)->wr_id = i; | |
1132 | ||
1133 | io_u->mr = ibv_reg_mr(rd->pd, io_u->buf, max_bs, | |
1134 | IBV_ACCESS_LOCAL_WRITE | | |
1135 | IBV_ACCESS_REMOTE_READ | | |
1136 | IBV_ACCESS_REMOTE_WRITE); | |
1137 | if (io_u->mr == NULL) { | |
1138 | log_err("fio: ibv_reg_mr io_u failed\n"); | |
1139 | return 1; | |
1140 | } | |
1141 | ||
1142 | rd->send_buf.rmt_us[i].buf = | |
1143 | htonll((uint64_t) (unsigned long)io_u->buf); | |
1144 | rd->send_buf.rmt_us[i].rkey = htonl(io_u->mr->rkey); | |
1145 | rd->send_buf.rmt_us[i].size = htonl(max_bs); | |
1146 | ||
1147 | /* log_info("fio: Send rkey %x addr %" PRIx64 " len %d to client\n", | |
1148 | io_u->mr->rkey, io_u->buf, max_bs); */ | |
1149 | i++; | |
1150 | } | |
1151 | ||
1152 | rd->send_buf.nr = htonl(i); | |
1153 | ||
1154 | return ret; | |
1155 | bad_host: | |
1156 | log_err("fio: bad rdma host/port/protocol: %s\n", td->o.filename); | |
1157 | return 1; | |
1158 | } | |
1159 | ||
1160 | static void fio_rdmaio_cleanup(struct thread_data *td) | |
1161 | { | |
1162 | struct rdmaio_data *rd = td->io_ops->data; | |
1163 | ||
1164 | if (rd) { | |
1165 | /* if (nd->listenfd != -1) | |
1166 | close(nd->listenfd); | |
1167 | if (nd->pipes[0] != -1) | |
1168 | close(nd->pipes[0]); | |
1169 | if (nd->pipes[1] != -1) | |
1170 | close(nd->pipes[1]); | |
1171 | */ | |
1172 | free(rd); | |
1173 | } | |
1174 | } | |
1175 | ||
1176 | static int fio_rdmaio_setup(struct thread_data *td) | |
1177 | { | |
1178 | struct rdmaio_data *rd; | |
1179 | ||
1180 | if (!td->io_ops->data) { | |
1181 | rd = malloc(sizeof(*rd));; | |
1182 | ||
1183 | memset(rd, 0, sizeof(*rd)); | |
1184 | td->io_ops->data = rd; | |
1185 | } | |
1186 | ||
1187 | return 0; | |
1188 | } | |
1189 | ||
1190 | static struct ioengine_ops ioengine_rw = { | |
b6cf38f0 YR |
1191 | .name = "rdma", |
1192 | .version = FIO_IOOPS_VERSION, | |
1193 | .setup = fio_rdmaio_setup, | |
1194 | .init = fio_rdmaio_init, | |
1195 | .prep = fio_rdmaio_prep, | |
1196 | .queue = fio_rdmaio_queue, | |
1197 | .commit = fio_rdmaio_commit, | |
1198 | .getevents = fio_rdmaio_getevents, | |
1199 | .event = fio_rdmaio_event, | |
1200 | .cleanup = fio_rdmaio_cleanup, | |
1201 | .open_file = fio_rdmaio_open_file, | |
1202 | .close_file = fio_rdmaio_close_file, | |
1203 | .flags = FIO_DISKLESSIO | FIO_UNIDIR | FIO_PIPEIO, | |
21b8aee8 | 1204 | }; |
1205 | ||
1206 | #else /* FIO_HAVE_RDMA */ | |
1207 | ||
1208 | static int fio_rdmaio_open_file(struct thread_data *td, struct fio_file *f) | |
1209 | { | |
1210 | return 0; | |
1211 | } | |
1212 | ||
1213 | static int fio_rdmaio_close_file(struct thread_data *td, struct fio_file *f) | |
1214 | { | |
1215 | return 0; | |
1216 | } | |
1217 | ||
1218 | static int fio_rdmaio_queue(struct thread_data *td, struct io_u *io_u) | |
1219 | { | |
1220 | return FIO_Q_COMPLETED; | |
1221 | } | |
1222 | ||
1223 | static int fio_rdmaio_init(struct thread_data fio_unused * td) | |
1224 | { | |
1225 | log_err("fio: rdma(librdmacm libibverbs) not available\n"); | |
1226 | log_err(" You haven't compiled rdma ioengine into fio.\n"); | |
1227 | log_err(" If you want to try rdma ioengine,\n"); | |
1228 | log_err(" make sure OFED is installed,\n"); | |
1229 | log_err(" $ ofed_info\n"); | |
1230 | log_err(" then try to make fio as follows:\n"); | |
1231 | log_err(" $ export EXTFLAGS=\"-DFIO_HAVE_RDMA\"\n"); | |
1232 | log_err(" $ export EXTLIBS=\"-libverbs -lrdmacm\"\n"); | |
1233 | log_err(" $ make clean && make\n"); | |
1234 | return 1; | |
1235 | } | |
1236 | ||
1237 | static struct ioengine_ops ioengine_rw = { | |
b6cf38f0 YR |
1238 | .name = "rdma", |
1239 | .version = FIO_IOOPS_VERSION, | |
1240 | .init = fio_rdmaio_init, | |
1241 | .queue = fio_rdmaio_queue, | |
1242 | .open_file = fio_rdmaio_open_file, | |
1243 | .close_file = fio_rdmaio_close_file, | |
1244 | .flags = FIO_SYNCIO | FIO_DISKLESSIO | FIO_UNIDIR | FIO_PIPEIO, | |
21b8aee8 | 1245 | }; |
1246 | ||
1247 | #endif | |
1248 | ||
1249 | static void fio_init fio_rdmaio_register(void) | |
1250 | { | |
1251 | register_ioengine(&ioengine_rw); | |
1252 | } | |
1253 | ||
1254 | static void fio_exit fio_rdmaio_unregister(void) | |
1255 | { | |
1256 | unregister_ioengine(&ioengine_rw); | |
1257 | } |