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 | * |
0ac5d398 | 8 | * You will need the Linux RDMA software installed, either |
85286c5c | 9 | * from your Linux distributor or directly from openfabrics.org: |
21b8aee8 | 10 | * |
11 | * http://www.openfabrics.org/downloads/OFED/ | |
12 | * | |
7d7803fa YR |
13 | * Exchanging steps of RDMA ioengine control messages: |
14 | * 1. client side sends test mode (RDMA_WRITE/RDMA_READ/SEND) | |
15 | * to server side. | |
222757cc | 16 | * 2. server side parses test mode, and sends back confirmation |
7d7803fa | 17 | * to client side. In RDMA WRITE/READ test, this confirmation |
222757cc | 18 | * includes memory information, such as rkey, address. |
7d7803fa | 19 | * 3. client side initiates test loop. |
222757cc | 20 | * 4. In RDMA WRITE/READ test, client side sends a completion |
7d7803fa | 21 | * notification to server side. Server side updates its |
222757cc | 22 | * td->done as true. |
7d7803fa | 23 | * |
21b8aee8 | 24 | */ |
25 | #include <stdio.h> | |
26 | #include <stdlib.h> | |
27 | #include <unistd.h> | |
28 | #include <errno.h> | |
29 | #include <assert.h> | |
30 | #include <netinet/in.h> | |
31 | #include <arpa/inet.h> | |
32 | #include <netdb.h> | |
33 | #include <sys/poll.h> | |
34 | #include <sys/types.h> | |
35 | #include <sys/socket.h> | |
36 | #include <sys/time.h> | |
37 | #include <sys/resource.h> | |
38 | ||
21b8aee8 | 39 | #include <pthread.h> |
40 | #include <inttypes.h> | |
41 | ||
42 | #include "../fio.h" | |
ee88d056 | 43 | #include "../hash.h" |
21b8aee8 | 44 | |
21b8aee8 | 45 | #include <rdma/rdma_cma.h> |
46 | #include <infiniband/arch.h> | |
47 | ||
7d7803fa | 48 | #define FIO_RDMA_MAX_IO_DEPTH 512 |
21b8aee8 | 49 | |
50 | enum rdma_io_mode { | |
51 | FIO_RDMA_UNKNOWN = 0, | |
52 | FIO_RDMA_MEM_WRITE, | |
53 | FIO_RDMA_MEM_READ, | |
54 | FIO_RDMA_CHA_SEND, | |
55 | FIO_RDMA_CHA_RECV | |
56 | }; | |
57 | ||
cdf91594 LG |
58 | struct rdmaio_options { |
59 | struct thread_data *td; | |
60 | unsigned int port; | |
61 | enum rdma_io_mode verb; | |
62 | }; | |
63 | ||
64 | static int str_hostname_cb(void *data, const char *input) | |
65 | { | |
66 | struct rdmaio_options *o = data; | |
67 | ||
68 | if (o->td->o.filename) | |
69 | free(o->td->o.filename); | |
70 | o->td->o.filename = strdup(input); | |
71 | return 0; | |
72 | } | |
73 | ||
74 | static struct fio_option options[] = { | |
75 | { | |
76 | .name = "hostname", | |
77 | .lname = "rdma engine hostname", | |
78 | .type = FIO_OPT_STR_STORE, | |
79 | .cb = str_hostname_cb, | |
80 | .help = "Hostname for RDMA IO engine", | |
81 | .category = FIO_OPT_C_ENGINE, | |
82 | .group = FIO_OPT_G_RDMA, | |
83 | }, | |
84 | { | |
85 | .name = "port", | |
86 | .lname = "rdma engine port", | |
87 | .type = FIO_OPT_INT, | |
88 | .off1 = offsetof(struct rdmaio_options, port), | |
89 | .minval = 1, | |
90 | .maxval = 65535, | |
91 | .help = "Port to use for RDMA connections", | |
92 | .category = FIO_OPT_C_ENGINE, | |
93 | .group = FIO_OPT_G_RDMA, | |
94 | }, | |
95 | { | |
96 | .name = "verb", | |
97 | .lname = "RDMA engine verb", | |
98 | .alias = "proto", | |
99 | .type = FIO_OPT_STR, | |
100 | .off1 = offsetof(struct rdmaio_options, verb), | |
101 | .help = "RDMA engine verb", | |
102 | .def = "write", | |
103 | .posval = { | |
104 | { .ival = "write", | |
105 | .oval = FIO_RDMA_MEM_WRITE, | |
106 | .help = "Memory Write", | |
107 | }, | |
108 | { .ival = "read", | |
109 | .oval = FIO_RDMA_MEM_READ, | |
110 | .help = "Memory Read", | |
111 | }, | |
112 | { .ival = "send", | |
113 | .oval = FIO_RDMA_CHA_SEND, | |
114 | .help = "Posted Send", | |
115 | }, | |
116 | { .ival = "recv", | |
117 | .oval = FIO_RDMA_CHA_RECV, | |
118 | .help = "Posted Recieve", | |
119 | }, | |
120 | }, | |
121 | .category = FIO_OPT_C_ENGINE, | |
122 | .group = FIO_OPT_G_RDMA, | |
123 | }, | |
124 | { | |
125 | .name = NULL, | |
126 | }, | |
127 | }; | |
128 | ||
21b8aee8 | 129 | struct remote_u { |
130 | uint64_t buf; | |
131 | uint32_t rkey; | |
132 | uint32_t size; | |
133 | }; | |
134 | ||
135 | struct rdma_info_blk { | |
136 | uint32_t mode; /* channel semantic or memory semantic */ | |
137 | uint32_t nr; /* client: io depth | |
138 | server: number of records for memory semantic | |
139 | */ | |
76cc5224 | 140 | struct remote_u rmt_us[FIO_RDMA_MAX_IO_DEPTH]; |
21b8aee8 | 141 | }; |
142 | ||
143 | struct rdma_io_u_data { | |
144 | uint64_t wr_id; | |
145 | struct ibv_send_wr sq_wr; | |
146 | struct ibv_recv_wr rq_wr; | |
147 | struct ibv_sge rdma_sgl; | |
148 | }; | |
149 | ||
150 | struct rdmaio_data { | |
151 | int is_client; | |
152 | enum rdma_io_mode rdma_protocol; | |
153 | char host[64]; | |
154 | struct sockaddr_in addr; | |
155 | ||
156 | struct ibv_recv_wr rq_wr; | |
157 | struct ibv_sge recv_sgl; | |
158 | struct rdma_info_blk recv_buf; | |
159 | struct ibv_mr *recv_mr; | |
160 | ||
161 | struct ibv_send_wr sq_wr; | |
162 | struct ibv_sge send_sgl; | |
163 | struct rdma_info_blk send_buf; | |
164 | struct ibv_mr *send_mr; | |
165 | ||
166 | struct ibv_comp_channel *channel; | |
167 | struct ibv_cq *cq; | |
168 | struct ibv_pd *pd; | |
169 | struct ibv_qp *qp; | |
170 | ||
171 | pthread_t cmthread; | |
172 | struct rdma_event_channel *cm_channel; | |
173 | struct rdma_cm_id *cm_id; | |
174 | struct rdma_cm_id *child_cm_id; | |
175 | ||
176 | int cq_event_num; | |
177 | ||
178 | struct remote_u *rmt_us; | |
179 | int rmt_nr; | |
180 | struct io_u **io_us_queued; | |
181 | int io_u_queued_nr; | |
182 | struct io_u **io_us_flight; | |
183 | int io_u_flight_nr; | |
184 | struct io_u **io_us_completed; | |
185 | int io_u_completed_nr; | |
ea6209ad JA |
186 | |
187 | struct frand_state rand_state; | |
21b8aee8 | 188 | }; |
189 | ||
190 | static int client_recv(struct thread_data *td, struct ibv_wc *wc) | |
191 | { | |
192 | struct rdmaio_data *rd = td->io_ops->data; | |
193 | ||
194 | if (wc->byte_len != sizeof(rd->recv_buf)) { | |
b6cf38f0 | 195 | log_err("Received bogus data, size %d\n", wc->byte_len); |
21b8aee8 | 196 | return 1; |
197 | } | |
198 | ||
199 | /* store mr info for MEMORY semantic */ | |
200 | if ((rd->rdma_protocol == FIO_RDMA_MEM_WRITE) || | |
201 | (rd->rdma_protocol == FIO_RDMA_MEM_READ)) { | |
202 | /* struct flist_head *entry; */ | |
203 | int i = 0; | |
204 | ||
205 | rd->rmt_nr = ntohl(rd->recv_buf.nr); | |
206 | ||
207 | for (i = 0; i < rd->rmt_nr; i++) { | |
208 | rd->rmt_us[i].buf = ntohll(rd->recv_buf.rmt_us[i].buf); | |
209 | rd->rmt_us[i].rkey = ntohl(rd->recv_buf.rmt_us[i].rkey); | |
210 | rd->rmt_us[i].size = ntohl(rd->recv_buf.rmt_us[i].size); | |
211 | ||
212 | dprint(FD_IO, | |
213 | "fio: Received rkey %x addr %" PRIx64 | |
214 | " len %d from peer\n", rd->rmt_us[i].rkey, | |
215 | rd->rmt_us[i].buf, rd->rmt_us[i].size); | |
216 | } | |
217 | } | |
218 | ||
219 | return 0; | |
220 | } | |
221 | ||
222 | static int server_recv(struct thread_data *td, struct ibv_wc *wc) | |
223 | { | |
224 | struct rdmaio_data *rd = td->io_ops->data; | |
225 | ||
76cc5224 | 226 | if (wc->wr_id == FIO_RDMA_MAX_IO_DEPTH) { |
21b8aee8 | 227 | rd->rdma_protocol = ntohl(rd->recv_buf.mode); |
228 | ||
229 | /* CHANNEL semantic, do nothing */ | |
230 | if (rd->rdma_protocol == FIO_RDMA_CHA_SEND) | |
231 | rd->rdma_protocol = FIO_RDMA_CHA_RECV; | |
232 | } | |
233 | ||
234 | return 0; | |
235 | } | |
236 | ||
237 | static int cq_event_handler(struct thread_data *td, enum ibv_wc_opcode opcode) | |
238 | { | |
239 | struct rdmaio_data *rd = td->io_ops->data; | |
240 | struct ibv_wc wc; | |
241 | struct rdma_io_u_data *r_io_u_d; | |
242 | int ret; | |
243 | int compevnum = 0; | |
244 | int i; | |
245 | ||
246 | while ((ret = ibv_poll_cq(rd->cq, 1, &wc)) == 1) { | |
247 | ret = 0; | |
248 | compevnum++; | |
249 | ||
250 | if (wc.status) { | |
251 | log_err("fio: cq completion status %d(%s)\n", | |
252 | wc.status, ibv_wc_status_str(wc.status)); | |
253 | return -1; | |
254 | } | |
255 | ||
256 | switch (wc.opcode) { | |
257 | ||
258 | case IBV_WC_RECV: | |
259 | if (rd->is_client == 1) | |
260 | client_recv(td, &wc); | |
261 | else | |
262 | server_recv(td, &wc); | |
263 | ||
76cc5224 | 264 | if (wc.wr_id == FIO_RDMA_MAX_IO_DEPTH) |
21b8aee8 | 265 | break; |
266 | ||
267 | for (i = 0; i < rd->io_u_flight_nr; i++) { | |
268 | r_io_u_d = rd->io_us_flight[i]->engine_data; | |
269 | ||
270 | if (wc.wr_id == r_io_u_d->rq_wr.wr_id) { | |
271 | rd->io_us_flight[i]->resid = | |
272 | rd->io_us_flight[i]->buflen | |
273 | - wc.byte_len; | |
274 | ||
275 | rd->io_us_flight[i]->error = 0; | |
276 | ||
277 | rd->io_us_completed[rd-> | |
278 | io_u_completed_nr] | |
279 | = rd->io_us_flight[i]; | |
280 | rd->io_u_completed_nr++; | |
281 | break; | |
282 | } | |
283 | } | |
284 | if (i == rd->io_u_flight_nr) | |
e07f72d3 | 285 | log_err("fio: recv wr %" PRId64 " not found\n", |
21b8aee8 | 286 | wc.wr_id); |
287 | else { | |
288 | /* put the last one into middle of the list */ | |
289 | rd->io_us_flight[i] = | |
290 | rd->io_us_flight[rd->io_u_flight_nr - 1]; | |
291 | rd->io_u_flight_nr--; | |
292 | } | |
293 | ||
294 | break; | |
295 | ||
296 | case IBV_WC_SEND: | |
297 | case IBV_WC_RDMA_WRITE: | |
298 | case IBV_WC_RDMA_READ: | |
76cc5224 | 299 | if (wc.wr_id == FIO_RDMA_MAX_IO_DEPTH) |
21b8aee8 | 300 | break; |
301 | ||
302 | for (i = 0; i < rd->io_u_flight_nr; i++) { | |
303 | r_io_u_d = rd->io_us_flight[i]->engine_data; | |
304 | ||
305 | if (wc.wr_id == r_io_u_d->sq_wr.wr_id) { | |
306 | rd->io_us_completed[rd-> | |
307 | io_u_completed_nr] | |
308 | = rd->io_us_flight[i]; | |
309 | rd->io_u_completed_nr++; | |
310 | break; | |
311 | } | |
312 | } | |
313 | if (i == rd->io_u_flight_nr) | |
e07f72d3 | 314 | log_err("fio: send wr %" PRId64 " not found\n", |
21b8aee8 | 315 | wc.wr_id); |
316 | else { | |
317 | /* put the last one into middle of the list */ | |
318 | rd->io_us_flight[i] = | |
319 | rd->io_us_flight[rd->io_u_flight_nr - 1]; | |
320 | rd->io_u_flight_nr--; | |
321 | } | |
322 | ||
323 | break; | |
324 | ||
325 | default: | |
326 | log_info("fio: unknown completion event %d\n", | |
327 | wc.opcode); | |
328 | return -1; | |
329 | } | |
330 | rd->cq_event_num++; | |
331 | } | |
332 | if (ret) { | |
333 | log_err("fio: poll error %d\n", ret); | |
334 | return 1; | |
335 | } | |
336 | ||
337 | return compevnum; | |
338 | } | |
339 | ||
340 | /* | |
341 | * Return -1 for error and 'nr events' for a positive number | |
342 | * of events | |
343 | */ | |
344 | static int rdma_poll_wait(struct thread_data *td, enum ibv_wc_opcode opcode) | |
345 | { | |
346 | struct rdmaio_data *rd = td->io_ops->data; | |
347 | struct ibv_cq *ev_cq; | |
348 | void *ev_ctx; | |
349 | int ret; | |
350 | ||
351 | if (rd->cq_event_num > 0) { /* previous left */ | |
352 | rd->cq_event_num--; | |
353 | return 0; | |
354 | } | |
355 | ||
356 | again: | |
357 | if (ibv_get_cq_event(rd->channel, &ev_cq, &ev_ctx) != 0) { | |
358 | log_err("fio: Failed to get cq event!\n"); | |
359 | return -1; | |
360 | } | |
361 | if (ev_cq != rd->cq) { | |
362 | log_err("fio: Unknown CQ!\n"); | |
363 | return -1; | |
364 | } | |
365 | if (ibv_req_notify_cq(rd->cq, 0) != 0) { | |
366 | log_err("fio: Failed to set notify!\n"); | |
367 | return -1; | |
368 | } | |
369 | ||
370 | ret = cq_event_handler(td, opcode); | |
371 | if (ret < 1) | |
372 | goto again; | |
373 | ||
374 | ibv_ack_cq_events(rd->cq, ret); | |
375 | ||
376 | rd->cq_event_num--; | |
377 | ||
378 | return ret; | |
379 | } | |
380 | ||
381 | static int fio_rdmaio_setup_qp(struct thread_data *td) | |
382 | { | |
383 | struct rdmaio_data *rd = td->io_ops->data; | |
384 | struct ibv_qp_init_attr init_attr; | |
385 | int qp_depth = td->o.iodepth * 2; /* 2 times of io depth */ | |
386 | ||
387 | if (rd->is_client == 0) | |
388 | rd->pd = ibv_alloc_pd(rd->child_cm_id->verbs); | |
389 | else | |
390 | rd->pd = ibv_alloc_pd(rd->cm_id->verbs); | |
222757cc | 391 | |
21b8aee8 | 392 | if (rd->pd == NULL) { |
393 | log_err("fio: ibv_alloc_pd fail\n"); | |
394 | return 1; | |
395 | } | |
396 | ||
397 | if (rd->is_client == 0) | |
398 | rd->channel = ibv_create_comp_channel(rd->child_cm_id->verbs); | |
399 | else | |
400 | rd->channel = ibv_create_comp_channel(rd->cm_id->verbs); | |
401 | if (rd->channel == NULL) { | |
402 | log_err("fio: ibv_create_comp_channel fail\n"); | |
403 | goto err1; | |
404 | } | |
405 | ||
406 | if (qp_depth < 16) | |
407 | qp_depth = 16; | |
408 | ||
409 | if (rd->is_client == 0) | |
410 | rd->cq = ibv_create_cq(rd->child_cm_id->verbs, | |
411 | qp_depth, rd, rd->channel, 0); | |
412 | else | |
413 | rd->cq = ibv_create_cq(rd->cm_id->verbs, | |
414 | qp_depth, rd, rd->channel, 0); | |
415 | if (rd->cq == NULL) { | |
416 | log_err("fio: ibv_create_cq failed\n"); | |
417 | goto err2; | |
418 | } | |
419 | ||
420 | if (ibv_req_notify_cq(rd->cq, 0) != 0) { | |
421 | log_err("fio: ibv_create_cq failed\n"); | |
422 | goto err3; | |
423 | } | |
424 | ||
425 | /* create queue pair */ | |
426 | memset(&init_attr, 0, sizeof(init_attr)); | |
427 | init_attr.cap.max_send_wr = qp_depth; | |
428 | init_attr.cap.max_recv_wr = qp_depth; | |
429 | init_attr.cap.max_recv_sge = 1; | |
430 | init_attr.cap.max_send_sge = 1; | |
431 | init_attr.qp_type = IBV_QPT_RC; | |
432 | init_attr.send_cq = rd->cq; | |
433 | init_attr.recv_cq = rd->cq; | |
434 | ||
435 | if (rd->is_client == 0) { | |
436 | if (rdma_create_qp(rd->child_cm_id, rd->pd, &init_attr) != 0) { | |
437 | log_err("fio: rdma_create_qp failed\n"); | |
438 | goto err3; | |
439 | } | |
440 | rd->qp = rd->child_cm_id->qp; | |
441 | } else { | |
442 | if (rdma_create_qp(rd->cm_id, rd->pd, &init_attr) != 0) { | |
443 | log_err("fio: rdma_create_qp failed\n"); | |
444 | goto err3; | |
445 | } | |
446 | rd->qp = rd->cm_id->qp; | |
447 | } | |
448 | ||
449 | return 0; | |
450 | ||
451 | err3: | |
452 | ibv_destroy_cq(rd->cq); | |
453 | err2: | |
454 | ibv_destroy_comp_channel(rd->channel); | |
455 | err1: | |
456 | ibv_dealloc_pd(rd->pd); | |
457 | ||
458 | return 1; | |
459 | } | |
460 | ||
461 | static int fio_rdmaio_setup_control_msg_buffers(struct thread_data *td) | |
462 | { | |
463 | struct rdmaio_data *rd = td->io_ops->data; | |
464 | ||
465 | rd->recv_mr = ibv_reg_mr(rd->pd, &rd->recv_buf, sizeof(rd->recv_buf), | |
466 | IBV_ACCESS_LOCAL_WRITE); | |
467 | if (rd->recv_mr == NULL) { | |
468 | log_err("fio: recv_buf reg_mr failed\n"); | |
469 | return 1; | |
470 | } | |
471 | ||
472 | rd->send_mr = ibv_reg_mr(rd->pd, &rd->send_buf, sizeof(rd->send_buf), | |
473 | 0); | |
474 | if (rd->send_mr == NULL) { | |
475 | log_err("fio: send_buf reg_mr failed\n"); | |
476 | ibv_dereg_mr(rd->recv_mr); | |
477 | return 1; | |
478 | } | |
479 | ||
480 | /* setup work request */ | |
481 | /* recv wq */ | |
482 | rd->recv_sgl.addr = (uint64_t) (unsigned long)&rd->recv_buf; | |
222757cc | 483 | rd->recv_sgl.length = sizeof(rd->recv_buf); |
21b8aee8 | 484 | rd->recv_sgl.lkey = rd->recv_mr->lkey; |
485 | rd->rq_wr.sg_list = &rd->recv_sgl; | |
486 | rd->rq_wr.num_sge = 1; | |
76cc5224 | 487 | rd->rq_wr.wr_id = FIO_RDMA_MAX_IO_DEPTH; |
21b8aee8 | 488 | |
489 | /* send wq */ | |
490 | rd->send_sgl.addr = (uint64_t) (unsigned long)&rd->send_buf; | |
222757cc | 491 | rd->send_sgl.length = sizeof(rd->send_buf); |
21b8aee8 | 492 | rd->send_sgl.lkey = rd->send_mr->lkey; |
493 | ||
494 | rd->sq_wr.opcode = IBV_WR_SEND; | |
495 | rd->sq_wr.send_flags = IBV_SEND_SIGNALED; | |
496 | rd->sq_wr.sg_list = &rd->send_sgl; | |
497 | rd->sq_wr.num_sge = 1; | |
76cc5224 | 498 | rd->sq_wr.wr_id = FIO_RDMA_MAX_IO_DEPTH; |
21b8aee8 | 499 | |
500 | return 0; | |
501 | } | |
502 | ||
503 | static int get_next_channel_event(struct thread_data *td, | |
504 | struct rdma_event_channel *channel, | |
505 | enum rdma_cm_event_type wait_event) | |
506 | { | |
507 | struct rdmaio_data *rd = td->io_ops->data; | |
21b8aee8 | 508 | struct rdma_cm_event *event; |
222757cc | 509 | int ret; |
21b8aee8 | 510 | |
511 | ret = rdma_get_cm_event(channel, &event); | |
512 | if (ret) { | |
222757cc | 513 | log_err("fio: rdma_get_cm_event: %d\n", ret); |
21b8aee8 | 514 | return 1; |
515 | } | |
516 | ||
517 | if (event->event != wait_event) { | |
518 | log_err("fio: event is %s instead of %s\n", | |
519 | rdma_event_str(event->event), | |
520 | rdma_event_str(wait_event)); | |
521 | return 1; | |
522 | } | |
523 | ||
524 | switch (event->event) { | |
525 | case RDMA_CM_EVENT_CONNECT_REQUEST: | |
526 | rd->child_cm_id = event->id; | |
527 | break; | |
528 | default: | |
529 | break; | |
530 | } | |
531 | ||
532 | rdma_ack_cm_event(event); | |
533 | ||
534 | return 0; | |
535 | } | |
536 | ||
537 | static int fio_rdmaio_prep(struct thread_data *td, struct io_u *io_u) | |
538 | { | |
539 | struct rdmaio_data *rd = td->io_ops->data; | |
540 | struct rdma_io_u_data *r_io_u_d; | |
541 | ||
542 | r_io_u_d = io_u->engine_data; | |
543 | ||
544 | switch (rd->rdma_protocol) { | |
545 | case FIO_RDMA_MEM_WRITE: | |
546 | case FIO_RDMA_MEM_READ: | |
547 | r_io_u_d->rdma_sgl.addr = (uint64_t) (unsigned long)io_u->buf; | |
548 | r_io_u_d->rdma_sgl.lkey = io_u->mr->lkey; | |
549 | r_io_u_d->sq_wr.wr_id = r_io_u_d->wr_id; | |
550 | r_io_u_d->sq_wr.send_flags = IBV_SEND_SIGNALED; | |
551 | r_io_u_d->sq_wr.sg_list = &r_io_u_d->rdma_sgl; | |
552 | r_io_u_d->sq_wr.num_sge = 1; | |
553 | break; | |
554 | case FIO_RDMA_CHA_SEND: | |
555 | r_io_u_d->rdma_sgl.addr = (uint64_t) (unsigned long)io_u->buf; | |
556 | r_io_u_d->rdma_sgl.lkey = io_u->mr->lkey; | |
557 | r_io_u_d->rdma_sgl.length = io_u->buflen; | |
558 | r_io_u_d->sq_wr.wr_id = r_io_u_d->wr_id; | |
559 | r_io_u_d->sq_wr.opcode = IBV_WR_SEND; | |
560 | r_io_u_d->sq_wr.send_flags = IBV_SEND_SIGNALED; | |
561 | r_io_u_d->sq_wr.sg_list = &r_io_u_d->rdma_sgl; | |
562 | r_io_u_d->sq_wr.num_sge = 1; | |
563 | break; | |
564 | case FIO_RDMA_CHA_RECV: | |
565 | r_io_u_d->rdma_sgl.addr = (uint64_t) (unsigned long)io_u->buf; | |
566 | r_io_u_d->rdma_sgl.lkey = io_u->mr->lkey; | |
567 | r_io_u_d->rdma_sgl.length = io_u->buflen; | |
568 | r_io_u_d->rq_wr.wr_id = r_io_u_d->wr_id; | |
569 | r_io_u_d->rq_wr.sg_list = &r_io_u_d->rdma_sgl; | |
570 | r_io_u_d->rq_wr.num_sge = 1; | |
571 | break; | |
572 | default: | |
573 | log_err("fio: unknown rdma protocol - %d\n", rd->rdma_protocol); | |
574 | break; | |
575 | } | |
576 | ||
577 | return 0; | |
578 | } | |
579 | ||
580 | static struct io_u *fio_rdmaio_event(struct thread_data *td, int event) | |
581 | { | |
582 | struct rdmaio_data *rd = td->io_ops->data; | |
583 | struct io_u *io_u; | |
584 | int i; | |
585 | ||
586 | io_u = rd->io_us_completed[0]; | |
222757cc | 587 | for (i = 0; i < rd->io_u_completed_nr - 1; i++) |
21b8aee8 | 588 | rd->io_us_completed[i] = rd->io_us_completed[i + 1]; |
222757cc | 589 | |
21b8aee8 | 590 | rd->io_u_completed_nr--; |
591 | ||
592 | dprint_io_u(io_u, "fio_rdmaio_event"); | |
593 | ||
594 | return io_u; | |
595 | } | |
596 | ||
597 | static int fio_rdmaio_getevents(struct thread_data *td, unsigned int min, | |
1f440ece | 598 | unsigned int max, const struct timespec *t) |
21b8aee8 | 599 | { |
600 | struct rdmaio_data *rd = td->io_ops->data; | |
21b8aee8 | 601 | enum ibv_wc_opcode comp_opcode; |
21b8aee8 | 602 | struct ibv_cq *ev_cq; |
603 | void *ev_ctx; | |
222757cc | 604 | int ret, r = 0; |
954cd73a | 605 | comp_opcode = IBV_WC_RDMA_WRITE; |
21b8aee8 | 606 | |
607 | switch (rd->rdma_protocol) { | |
608 | case FIO_RDMA_MEM_WRITE: | |
609 | comp_opcode = IBV_WC_RDMA_WRITE; | |
610 | break; | |
611 | case FIO_RDMA_MEM_READ: | |
612 | comp_opcode = IBV_WC_RDMA_READ; | |
613 | break; | |
614 | case FIO_RDMA_CHA_SEND: | |
615 | comp_opcode = IBV_WC_SEND; | |
616 | break; | |
617 | case FIO_RDMA_CHA_RECV: | |
618 | comp_opcode = IBV_WC_RECV; | |
619 | break; | |
620 | default: | |
621 | log_err("fio: unknown rdma protocol - %d\n", rd->rdma_protocol); | |
622 | break; | |
623 | } | |
624 | ||
625 | if (rd->cq_event_num > 0) { /* previous left */ | |
626 | rd->cq_event_num--; | |
627 | return 0; | |
628 | } | |
629 | ||
630 | again: | |
631 | if (ibv_get_cq_event(rd->channel, &ev_cq, &ev_ctx) != 0) { | |
632 | log_err("fio: Failed to get cq event!\n"); | |
633 | return -1; | |
634 | } | |
635 | if (ev_cq != rd->cq) { | |
636 | log_err("fio: Unknown CQ!\n"); | |
637 | return -1; | |
638 | } | |
639 | if (ibv_req_notify_cq(rd->cq, 0) != 0) { | |
640 | log_err("fio: Failed to set notify!\n"); | |
641 | return -1; | |
642 | } | |
643 | ||
644 | ret = cq_event_handler(td, comp_opcode); | |
645 | if (ret < 1) | |
646 | goto again; | |
647 | ||
648 | ibv_ack_cq_events(rd->cq, ret); | |
649 | ||
650 | r += ret; | |
651 | if (r < min) | |
652 | goto again; | |
653 | ||
654 | rd->cq_event_num -= r; | |
655 | ||
656 | return r; | |
657 | } | |
658 | ||
659 | static int fio_rdmaio_send(struct thread_data *td, struct io_u **io_us, | |
660 | unsigned int nr) | |
661 | { | |
662 | struct rdmaio_data *rd = td->io_ops->data; | |
663 | struct ibv_send_wr *bad_wr; | |
e07f72d3 | 664 | #if 0 |
21b8aee8 | 665 | enum ibv_wc_opcode comp_opcode; |
666 | comp_opcode = IBV_WC_RDMA_WRITE; | |
e07f72d3 | 667 | #endif |
7d7803fa YR |
668 | int i; |
669 | long index; | |
21b8aee8 | 670 | struct rdma_io_u_data *r_io_u_d; |
671 | ||
672 | r_io_u_d = NULL; | |
673 | ||
674 | for (i = 0; i < nr; i++) { | |
675 | /* RDMA_WRITE or RDMA_READ */ | |
676 | switch (rd->rdma_protocol) { | |
677 | case FIO_RDMA_MEM_WRITE: | |
678 | /* compose work request */ | |
679 | r_io_u_d = io_us[i]->engine_data; | |
222757cc | 680 | index = __rand(&rd->rand_state) % rd->rmt_nr; |
21b8aee8 | 681 | r_io_u_d->sq_wr.opcode = IBV_WR_RDMA_WRITE; |
682 | r_io_u_d->sq_wr.wr.rdma.rkey = rd->rmt_us[index].rkey; | |
b6cf38f0 YR |
683 | r_io_u_d->sq_wr.wr.rdma.remote_addr = \ |
684 | rd->rmt_us[index].buf; | |
21b8aee8 | 685 | r_io_u_d->sq_wr.sg_list->length = io_us[i]->buflen; |
686 | break; | |
687 | case FIO_RDMA_MEM_READ: | |
688 | /* compose work request */ | |
689 | r_io_u_d = io_us[i]->engine_data; | |
222757cc | 690 | index = __rand(&rd->rand_state) % rd->rmt_nr; |
21b8aee8 | 691 | r_io_u_d->sq_wr.opcode = IBV_WR_RDMA_READ; |
692 | r_io_u_d->sq_wr.wr.rdma.rkey = rd->rmt_us[index].rkey; | |
b6cf38f0 YR |
693 | r_io_u_d->sq_wr.wr.rdma.remote_addr = \ |
694 | rd->rmt_us[index].buf; | |
21b8aee8 | 695 | r_io_u_d->sq_wr.sg_list->length = io_us[i]->buflen; |
696 | break; | |
697 | case FIO_RDMA_CHA_SEND: | |
698 | r_io_u_d = io_us[i]->engine_data; | |
699 | r_io_u_d->sq_wr.opcode = IBV_WR_SEND; | |
700 | r_io_u_d->sq_wr.send_flags = IBV_SEND_SIGNALED; | |
701 | break; | |
702 | default: | |
703 | log_err("fio: unknown rdma protocol - %d\n", | |
704 | rd->rdma_protocol); | |
705 | break; | |
706 | } | |
707 | ||
708 | if (ibv_post_send(rd->qp, &r_io_u_d->sq_wr, &bad_wr) != 0) { | |
709 | log_err("fio: ibv_post_send fail\n"); | |
710 | return -1; | |
711 | } | |
712 | ||
713 | dprint_io_u(io_us[i], "fio_rdmaio_send"); | |
714 | } | |
715 | ||
716 | /* wait for completion | |
717 | rdma_poll_wait(td, comp_opcode); */ | |
718 | ||
719 | return i; | |
720 | } | |
721 | ||
722 | static int fio_rdmaio_recv(struct thread_data *td, struct io_u **io_us, | |
723 | unsigned int nr) | |
724 | { | |
725 | struct rdmaio_data *rd = td->io_ops->data; | |
726 | struct ibv_recv_wr *bad_wr; | |
727 | struct rdma_io_u_data *r_io_u_d; | |
728 | int i; | |
729 | ||
730 | i = 0; | |
731 | if (rd->rdma_protocol == FIO_RDMA_CHA_RECV) { | |
732 | /* post io_u into recv queue */ | |
733 | for (i = 0; i < nr; i++) { | |
734 | r_io_u_d = io_us[i]->engine_data; | |
735 | if (ibv_post_recv(rd->qp, &r_io_u_d->rq_wr, &bad_wr) != | |
736 | 0) { | |
737 | log_err("fio: ibv_post_recv fail\n"); | |
738 | return 1; | |
739 | } | |
740 | } | |
741 | } else if ((rd->rdma_protocol == FIO_RDMA_MEM_READ) | |
742 | || (rd->rdma_protocol == FIO_RDMA_MEM_WRITE)) { | |
743 | /* re-post the rq_wr */ | |
744 | if (ibv_post_recv(rd->qp, &rd->rq_wr, &bad_wr) != 0) { | |
745 | log_err("fio: ibv_post_recv fail\n"); | |
746 | return 1; | |
747 | } | |
748 | ||
749 | rdma_poll_wait(td, IBV_WC_RECV); | |
750 | ||
751 | dprint(FD_IO, "fio: recv FINISH message\n"); | |
a05d62b2 YR |
752 | td->done = 1; |
753 | return 0; | |
21b8aee8 | 754 | } |
755 | ||
756 | return i; | |
757 | } | |
758 | ||
759 | static int fio_rdmaio_queue(struct thread_data *td, struct io_u *io_u) | |
760 | { | |
761 | struct rdmaio_data *rd = td->io_ops->data; | |
762 | ||
763 | fio_ro_check(td, io_u); | |
764 | ||
765 | if (rd->io_u_queued_nr == (int)td->o.iodepth) | |
766 | return FIO_Q_BUSY; | |
767 | ||
768 | rd->io_us_queued[rd->io_u_queued_nr] = io_u; | |
769 | rd->io_u_queued_nr++; | |
770 | ||
771 | dprint_io_u(io_u, "fio_rdmaio_queue"); | |
772 | ||
773 | return FIO_Q_QUEUED; | |
774 | } | |
775 | ||
776 | static void fio_rdmaio_queued(struct thread_data *td, struct io_u **io_us, | |
777 | unsigned int nr) | |
778 | { | |
779 | struct rdmaio_data *rd = td->io_ops->data; | |
780 | struct timeval now; | |
781 | unsigned int i; | |
782 | ||
783 | if (!fio_fill_issue_time(td)) | |
784 | return; | |
785 | ||
786 | fio_gettime(&now, NULL); | |
787 | ||
788 | for (i = 0; i < nr; i++) { | |
789 | struct io_u *io_u = io_us[i]; | |
790 | ||
791 | /* queued -> flight */ | |
792 | rd->io_us_flight[rd->io_u_flight_nr] = io_u; | |
793 | rd->io_u_flight_nr++; | |
794 | ||
795 | memcpy(&io_u->issue_time, &now, sizeof(now)); | |
796 | io_u_queued(td, io_u); | |
797 | } | |
798 | } | |
799 | ||
800 | static int fio_rdmaio_commit(struct thread_data *td) | |
801 | { | |
802 | struct rdmaio_data *rd = td->io_ops->data; | |
803 | struct io_u **io_us; | |
804 | int ret; | |
805 | ||
806 | if (!rd->io_us_queued) | |
807 | return 0; | |
808 | ||
809 | io_us = rd->io_us_queued; | |
810 | do { | |
811 | /* RDMA_WRITE or RDMA_READ */ | |
222757cc | 812 | if (rd->is_client) |
21b8aee8 | 813 | ret = fio_rdmaio_send(td, io_us, rd->io_u_queued_nr); |
222757cc | 814 | else if (!rd->is_client) |
21b8aee8 | 815 | ret = fio_rdmaio_recv(td, io_us, rd->io_u_queued_nr); |
222757cc | 816 | else |
21b8aee8 | 817 | ret = 0; /* must be a SYNC */ |
818 | ||
819 | if (ret > 0) { | |
820 | fio_rdmaio_queued(td, io_us, ret); | |
821 | io_u_mark_submit(td, ret); | |
822 | rd->io_u_queued_nr -= ret; | |
823 | io_us += ret; | |
824 | ret = 0; | |
825 | } else | |
826 | break; | |
827 | } while (rd->io_u_queued_nr); | |
828 | ||
829 | return ret; | |
830 | } | |
831 | ||
832 | static int fio_rdmaio_connect(struct thread_data *td, struct fio_file *f) | |
833 | { | |
834 | struct rdmaio_data *rd = td->io_ops->data; | |
835 | struct rdma_conn_param conn_param; | |
836 | struct ibv_send_wr *bad_wr; | |
837 | ||
222757cc | 838 | memset(&conn_param, 0, sizeof(conn_param)); |
21b8aee8 | 839 | conn_param.responder_resources = 1; |
840 | conn_param.initiator_depth = 1; | |
841 | conn_param.retry_count = 10; | |
842 | ||
843 | if (rdma_connect(rd->cm_id, &conn_param) != 0) { | |
844 | log_err("fio: rdma_connect fail\n"); | |
845 | return 1; | |
846 | } | |
847 | ||
848 | if (get_next_channel_event | |
849 | (td, rd->cm_channel, RDMA_CM_EVENT_ESTABLISHED) != 0) { | |
850 | log_err("fio: wait for RDMA_CM_EVENT_ESTABLISHED\n"); | |
851 | return 1; | |
852 | } | |
853 | ||
854 | /* send task request */ | |
855 | rd->send_buf.mode = htonl(rd->rdma_protocol); | |
856 | rd->send_buf.nr = htonl(td->o.iodepth); | |
857 | ||
858 | if (ibv_post_send(rd->qp, &rd->sq_wr, &bad_wr) != 0) { | |
859 | log_err("fio: ibv_post_send fail"); | |
860 | return 1; | |
861 | } | |
862 | ||
863 | rdma_poll_wait(td, IBV_WC_SEND); | |
864 | ||
865 | /* wait for remote MR info from server side */ | |
866 | rdma_poll_wait(td, IBV_WC_RECV); | |
867 | ||
7d7803fa YR |
868 | /* In SEND/RECV test, it's a good practice to setup the iodepth of |
869 | * of the RECV side deeper than that of the SEND side to | |
870 | * avoid RNR (receiver not ready) error. The | |
222757cc | 871 | * SEND side may send so many unsolicited message before |
7d7803fa YR |
872 | * RECV side commits sufficient recv buffers into recv queue. |
873 | * This may lead to RNR error. Here, SEND side pauses for a while | |
874 | * during which RECV side commits sufficient recv buffers. | |
875 | */ | |
876 | usleep(500000); | |
877 | ||
21b8aee8 | 878 | return 0; |
879 | } | |
880 | ||
881 | static int fio_rdmaio_accept(struct thread_data *td, struct fio_file *f) | |
882 | { | |
883 | struct rdmaio_data *rd = td->io_ops->data; | |
884 | struct rdma_conn_param conn_param; | |
885 | struct ibv_send_wr *bad_wr; | |
886 | ||
887 | /* rdma_accept() - then wait for accept success */ | |
222757cc | 888 | memset(&conn_param, 0, sizeof(conn_param)); |
21b8aee8 | 889 | conn_param.responder_resources = 1; |
890 | conn_param.initiator_depth = 1; | |
891 | ||
892 | if (rdma_accept(rd->child_cm_id, &conn_param) != 0) { | |
893 | log_err("fio: rdma_accept\n"); | |
894 | return 1; | |
895 | } | |
896 | ||
897 | if (get_next_channel_event | |
898 | (td, rd->cm_channel, RDMA_CM_EVENT_ESTABLISHED) != 0) { | |
899 | log_err("fio: wait for RDMA_CM_EVENT_ESTABLISHED\n"); | |
900 | return 1; | |
901 | } | |
902 | ||
903 | /* wait for request */ | |
904 | rdma_poll_wait(td, IBV_WC_RECV); | |
905 | ||
906 | if (ibv_post_send(rd->qp, &rd->sq_wr, &bad_wr) != 0) { | |
907 | log_err("fio: ibv_post_send fail"); | |
908 | return 1; | |
909 | } | |
910 | ||
911 | rdma_poll_wait(td, IBV_WC_SEND); | |
912 | ||
913 | return 0; | |
914 | } | |
915 | ||
916 | static int fio_rdmaio_open_file(struct thread_data *td, struct fio_file *f) | |
917 | { | |
918 | if (td_read(td)) | |
919 | return fio_rdmaio_accept(td, f); | |
920 | else | |
921 | return fio_rdmaio_connect(td, f); | |
922 | } | |
923 | ||
924 | static int fio_rdmaio_close_file(struct thread_data *td, struct fio_file *f) | |
925 | { | |
926 | struct rdmaio_data *rd = td->io_ops->data; | |
927 | struct ibv_send_wr *bad_wr; | |
928 | ||
929 | /* unregister rdma buffer */ | |
930 | ||
931 | /* | |
932 | * Client sends notification to the server side | |
933 | */ | |
934 | /* refer to: http://linux.die.net/man/7/rdma_cm */ | |
935 | if ((rd->is_client == 1) && ((rd->rdma_protocol == FIO_RDMA_MEM_WRITE) | |
936 | || (rd->rdma_protocol == | |
937 | FIO_RDMA_MEM_READ))) { | |
938 | if (ibv_post_send(rd->qp, &rd->sq_wr, &bad_wr) != 0) { | |
939 | log_err("fio: ibv_post_send fail"); | |
940 | return 1; | |
941 | } | |
942 | ||
de8f6de9 | 943 | dprint(FD_IO, "fio: close information sent success\n"); |
21b8aee8 | 944 | rdma_poll_wait(td, IBV_WC_SEND); |
945 | } | |
946 | ||
947 | if (rd->is_client == 1) | |
948 | rdma_disconnect(rd->cm_id); | |
949 | else { | |
950 | rdma_disconnect(rd->child_cm_id); | |
222757cc JA |
951 | #if 0 |
952 | rdma_disconnect(rd->cm_id); | |
953 | #endif | |
21b8aee8 | 954 | } |
955 | ||
222757cc JA |
956 | #if 0 |
957 | if (get_next_channel_event(td, rd->cm_channel, RDMA_CM_EVENT_DISCONNECTED) != 0) { | |
958 | log_err("fio: wait for RDMA_CM_EVENT_DISCONNECTED\n"); | |
959 | return 1; | |
960 | } | |
961 | #endif | |
21b8aee8 | 962 | |
21b8aee8 | 963 | ibv_destroy_cq(rd->cq); |
7d7803fa | 964 | ibv_destroy_qp(rd->qp); |
21b8aee8 | 965 | |
966 | if (rd->is_client == 1) | |
967 | rdma_destroy_id(rd->cm_id); | |
968 | else { | |
969 | rdma_destroy_id(rd->child_cm_id); | |
970 | rdma_destroy_id(rd->cm_id); | |
971 | } | |
972 | ||
973 | ibv_destroy_comp_channel(rd->channel); | |
974 | ibv_dealloc_pd(rd->pd); | |
975 | ||
976 | return 0; | |
977 | } | |
978 | ||
979 | static int fio_rdmaio_setup_connect(struct thread_data *td, const char *host, | |
980 | unsigned short port) | |
981 | { | |
982 | struct rdmaio_data *rd = td->io_ops->data; | |
983 | struct ibv_recv_wr *bad_wr; | |
222757cc | 984 | int err; |
21b8aee8 | 985 | |
986 | rd->addr.sin_family = AF_INET; | |
987 | rd->addr.sin_port = htons(port); | |
988 | ||
989 | if (inet_aton(host, &rd->addr.sin_addr) != 1) { | |
990 | struct hostent *hent; | |
991 | ||
992 | hent = gethostbyname(host); | |
993 | if (!hent) { | |
994 | td_verror(td, errno, "gethostbyname"); | |
995 | return 1; | |
996 | } | |
997 | ||
998 | memcpy(&rd->addr.sin_addr, hent->h_addr, 4); | |
999 | } | |
1000 | ||
1001 | /* resolve route */ | |
222757cc JA |
1002 | err = rdma_resolve_addr(rd->cm_id, NULL, (struct sockaddr *)&rd->addr, 2000); |
1003 | if (err != 0) { | |
1004 | log_err("fio: rdma_resolve_addr: %d\n", err); | |
21b8aee8 | 1005 | return 1; |
1006 | } | |
1007 | ||
222757cc JA |
1008 | err = get_next_channel_event(td, rd->cm_channel, RDMA_CM_EVENT_ADDR_RESOLVED); |
1009 | if (err != 0) { | |
1010 | log_err("fio: get_next_channel_event: %d\n", err); | |
21b8aee8 | 1011 | return 1; |
1012 | } | |
1013 | ||
1014 | /* resolve route */ | |
222757cc JA |
1015 | err = rdma_resolve_route(rd->cm_id, 2000); |
1016 | if (err != 0) { | |
1017 | log_err("fio: rdma_resolve_route: %d\n", err); | |
21b8aee8 | 1018 | return 1; |
1019 | } | |
1020 | ||
222757cc JA |
1021 | err = get_next_channel_event(td, rd->cm_channel, RDMA_CM_EVENT_ROUTE_RESOLVED); |
1022 | if (err != 0) { | |
1023 | log_err("fio: get_next_channel_event: %d\n", err); | |
21b8aee8 | 1024 | return 1; |
1025 | } | |
1026 | ||
1027 | /* create qp and buffer */ | |
1028 | if (fio_rdmaio_setup_qp(td) != 0) | |
1029 | return 1; | |
1030 | ||
1031 | if (fio_rdmaio_setup_control_msg_buffers(td) != 0) | |
1032 | return 1; | |
1033 | ||
1034 | /* post recv buf */ | |
222757cc JA |
1035 | err = ibv_post_recv(rd->qp, &rd->rq_wr, &bad_wr); |
1036 | if (err != 0) { | |
1037 | log_err("fio: ibv_post_recv fail: %d\n", err); | |
21b8aee8 | 1038 | return 1; |
1039 | } | |
1040 | ||
1041 | return 0; | |
1042 | } | |
1043 | ||
1044 | static int fio_rdmaio_setup_listen(struct thread_data *td, short port) | |
1045 | { | |
1046 | struct rdmaio_data *rd = td->io_ops->data; | |
1047 | struct ibv_recv_wr *bad_wr; | |
1048 | ||
1049 | rd->addr.sin_family = AF_INET; | |
1050 | rd->addr.sin_addr.s_addr = htonl(INADDR_ANY); | |
1051 | rd->addr.sin_port = htons(port); | |
1052 | ||
1053 | /* rdma_listen */ | |
1054 | if (rdma_bind_addr(rd->cm_id, (struct sockaddr *)&rd->addr) != 0) { | |
1055 | log_err("fio: rdma_bind_addr fail\n"); | |
1056 | return 1; | |
1057 | } | |
1058 | ||
1059 | if (rdma_listen(rd->cm_id, 3) != 0) { | |
1060 | log_err("fio: rdma_listen fail\n"); | |
1061 | return 1; | |
1062 | } | |
1063 | ||
1064 | /* wait for CONNECT_REQUEST */ | |
1065 | if (get_next_channel_event | |
1066 | (td, rd->cm_channel, RDMA_CM_EVENT_CONNECT_REQUEST) != 0) { | |
1067 | log_err("fio: wait for RDMA_CM_EVENT_CONNECT_REQUEST\n"); | |
1068 | return 1; | |
1069 | } | |
1070 | ||
1071 | if (fio_rdmaio_setup_qp(td) != 0) | |
1072 | return 1; | |
1073 | ||
1074 | if (fio_rdmaio_setup_control_msg_buffers(td) != 0) | |
1075 | return 1; | |
1076 | ||
1077 | /* post recv buf */ | |
1078 | if (ibv_post_recv(rd->qp, &rd->rq_wr, &bad_wr) != 0) { | |
1079 | log_err("fio: ibv_post_recv fail\n"); | |
1080 | return 1; | |
1081 | } | |
1082 | ||
1083 | return 0; | |
1084 | } | |
1085 | ||
38b9354a | 1086 | static int check_set_rlimits(struct thread_data *td) |
21b8aee8 | 1087 | { |
38b9354a | 1088 | #ifdef CONFIG_RLIMIT_MEMLOCK |
21b8aee8 | 1089 | struct rlimit rl; |
1090 | ||
21b8aee8 | 1091 | /* check RLIMIT_MEMLOCK */ |
1092 | if (getrlimit(RLIMIT_MEMLOCK, &rl) != 0) { | |
1093 | log_err("fio: getrlimit fail: %d(%s)\n", | |
1094 | errno, strerror(errno)); | |
1095 | return 1; | |
1096 | } | |
1097 | ||
1098 | /* soft limit */ | |
1099 | if ((rl.rlim_cur != RLIM_INFINITY) | |
1100 | && (rl.rlim_cur < td->orig_buffer_size)) { | |
e07f72d3 BVA |
1101 | log_err("fio: soft RLIMIT_MEMLOCK is: %" PRId64 "\n", |
1102 | rl.rlim_cur); | |
1103 | log_err("fio: total block size is: %zd\n", | |
21b8aee8 | 1104 | td->orig_buffer_size); |
1105 | /* try to set larger RLIMIT_MEMLOCK */ | |
1106 | rl.rlim_cur = rl.rlim_max; | |
1107 | if (setrlimit(RLIMIT_MEMLOCK, &rl) != 0) { | |
1108 | log_err("fio: setrlimit fail: %d(%s)\n", | |
1109 | errno, strerror(errno)); | |
1110 | log_err("fio: you may try enlarge MEMLOCK by root\n"); | |
1111 | log_err("# ulimit -l unlimited\n"); | |
1112 | return 1; | |
1113 | } | |
1114 | } | |
38b9354a JA |
1115 | #endif |
1116 | ||
1117 | return 0; | |
1118 | } | |
1119 | ||
cdf91594 | 1120 | static int compat_options(struct thread_data *td) |
38b9354a | 1121 | { |
cdf91594 LG |
1122 | // The original RDMA engine had an ugly / seperator |
1123 | // on the filename for it's options. This function | |
1124 | // retains backwards compatibility with it.100 | |
38b9354a | 1125 | |
cdf91594 LG |
1126 | struct rdmaio_options *o = td->eo; |
1127 | char *modep, *portp; | |
1128 | char *filename = td->o.filename; | |
38b9354a | 1129 | |
cdf91594 LG |
1130 | if (!filename) |
1131 | return 0; | |
21b8aee8 | 1132 | |
cdf91594 LG |
1133 | portp = strchr(filename, '/'); |
1134 | if (portp == NULL) | |
1135 | return 0; | |
21b8aee8 | 1136 | |
cdf91594 LG |
1137 | *portp = '\0'; |
1138 | portp++; | |
21b8aee8 | 1139 | |
cdf91594 LG |
1140 | o->port = strtol(portp, NULL, 10); |
1141 | if (!o->port || o->port > 65535) | |
21b8aee8 | 1142 | goto bad_host; |
1143 | ||
cdf91594 LG |
1144 | modep = strchr(portp, '/'); |
1145 | if (modep != NULL) { | |
1146 | *modep = '\0'; | |
1147 | modep++; | |
21b8aee8 | 1148 | } |
1149 | ||
21b8aee8 | 1150 | if (modep) { |
1151 | if (!strncmp("rdma_write", modep, strlen(modep)) || | |
1152 | !strncmp("RDMA_WRITE", modep, strlen(modep))) | |
cdf91594 | 1153 | o->verb = FIO_RDMA_MEM_WRITE; |
21b8aee8 | 1154 | else if (!strncmp("rdma_read", modep, strlen(modep)) || |
1155 | !strncmp("RDMA_READ", modep, strlen(modep))) | |
cdf91594 | 1156 | o->verb = FIO_RDMA_MEM_READ; |
21b8aee8 | 1157 | else if (!strncmp("send", modep, strlen(modep)) || |
1158 | !strncmp("SEND", modep, strlen(modep))) | |
cdf91594 | 1159 | o->verb = FIO_RDMA_CHA_SEND; |
21b8aee8 | 1160 | else |
1161 | goto bad_host; | |
1162 | } else | |
cdf91594 LG |
1163 | o->verb = FIO_RDMA_MEM_WRITE; |
1164 | ||
1165 | ||
1166 | return 0; | |
21b8aee8 | 1167 | |
cdf91594 LG |
1168 | bad_host: |
1169 | log_err("fio: bad rdma host/port/protocol: %s\n", td->o.filename); | |
1170 | return 1; | |
1171 | } | |
1172 | ||
1173 | static int fio_rdmaio_init(struct thread_data *td) | |
1174 | { | |
1175 | struct rdmaio_data *rd = td->io_ops->data; | |
1176 | struct rdmaio_options *o = td->eo; | |
1177 | unsigned int max_bs; | |
1178 | int ret, i; | |
1179 | ||
1180 | if (td_rw(td)) { | |
1181 | log_err("fio: rdma connections must be read OR write\n"); | |
1182 | return 1; | |
1183 | } | |
1184 | if (td_random(td)) { | |
1185 | log_err("fio: RDMA network IO can't be random\n"); | |
1186 | return 1; | |
1187 | } | |
1188 | ||
1189 | if (compat_options(td)) | |
1190 | return 1; | |
1191 | ||
1192 | if (!o->port) { | |
1193 | log_err("fio: no port has been specified which is required " | |
1194 | "for the rdma engine\n"); | |
1195 | return 1; | |
1196 | } | |
1197 | ||
1198 | if (check_set_rlimits(td)) | |
1199 | return 1; | |
1200 | ||
1201 | rd->rdma_protocol = o->verb; | |
21b8aee8 | 1202 | rd->cq_event_num = 0; |
1203 | ||
1204 | rd->cm_channel = rdma_create_event_channel(); | |
1205 | if (!rd->cm_channel) { | |
1206 | log_err("fio: rdma_create_event_channel fail\n"); | |
1207 | return 1; | |
1208 | } | |
1209 | ||
1210 | ret = rdma_create_id(rd->cm_channel, &rd->cm_id, rd, RDMA_PS_TCP); | |
1211 | if (ret) { | |
1212 | log_err("fio: rdma_create_id fail\n"); | |
1213 | return 1; | |
1214 | } | |
1215 | ||
1216 | if ((rd->rdma_protocol == FIO_RDMA_MEM_WRITE) || | |
1217 | (rd->rdma_protocol == FIO_RDMA_MEM_READ)) { | |
1218 | rd->rmt_us = | |
76cc5224 | 1219 | malloc(FIO_RDMA_MAX_IO_DEPTH * sizeof(struct remote_u)); |
21b8aee8 | 1220 | memset(rd->rmt_us, 0, |
76cc5224 | 1221 | FIO_RDMA_MAX_IO_DEPTH * sizeof(struct remote_u)); |
21b8aee8 | 1222 | rd->rmt_nr = 0; |
1223 | } | |
1224 | ||
1225 | rd->io_us_queued = malloc(td->o.iodepth * sizeof(struct io_u *)); | |
1226 | memset(rd->io_us_queued, 0, td->o.iodepth * sizeof(struct io_u *)); | |
1227 | rd->io_u_queued_nr = 0; | |
1228 | ||
1229 | rd->io_us_flight = malloc(td->o.iodepth * sizeof(struct io_u *)); | |
1230 | memset(rd->io_us_flight, 0, td->o.iodepth * sizeof(struct io_u *)); | |
1231 | rd->io_u_flight_nr = 0; | |
1232 | ||
1233 | rd->io_us_completed = malloc(td->o.iodepth * sizeof(struct io_u *)); | |
1234 | memset(rd->io_us_completed, 0, td->o.iodepth * sizeof(struct io_u *)); | |
1235 | rd->io_u_completed_nr = 0; | |
1236 | ||
1237 | if (td_read(td)) { /* READ as the server */ | |
1238 | rd->is_client = 0; | |
1239 | /* server rd->rdma_buf_len will be setup after got request */ | |
cdf91594 | 1240 | ret = fio_rdmaio_setup_listen(td, o->port); |
21b8aee8 | 1241 | } else { /* WRITE as the client */ |
1242 | rd->is_client = 1; | |
cdf91594 | 1243 | ret = fio_rdmaio_setup_connect(td, td->o.filename, o->port); |
21b8aee8 | 1244 | } |
1245 | ||
21b8aee8 | 1246 | max_bs = max(td->o.max_bs[DDIR_READ], td->o.max_bs[DDIR_WRITE]); |
1247 | /* register each io_u in the free list */ | |
954cd73a YR |
1248 | for (i = 0; i < td->io_u_freelist.nr; i++) { |
1249 | struct io_u *io_u = td->io_u_freelist.io_us[i]; | |
21b8aee8 | 1250 | |
1251 | io_u->engine_data = malloc(sizeof(struct rdma_io_u_data)); | |
1252 | memset(io_u->engine_data, 0, sizeof(struct rdma_io_u_data)); | |
1253 | ((struct rdma_io_u_data *)io_u->engine_data)->wr_id = i; | |
1254 | ||
1255 | io_u->mr = ibv_reg_mr(rd->pd, io_u->buf, max_bs, | |
1256 | IBV_ACCESS_LOCAL_WRITE | | |
1257 | IBV_ACCESS_REMOTE_READ | | |
1258 | IBV_ACCESS_REMOTE_WRITE); | |
1259 | if (io_u->mr == NULL) { | |
1260 | log_err("fio: ibv_reg_mr io_u failed\n"); | |
1261 | return 1; | |
1262 | } | |
1263 | ||
1264 | rd->send_buf.rmt_us[i].buf = | |
1265 | htonll((uint64_t) (unsigned long)io_u->buf); | |
1266 | rd->send_buf.rmt_us[i].rkey = htonl(io_u->mr->rkey); | |
1267 | rd->send_buf.rmt_us[i].size = htonl(max_bs); | |
1268 | ||
222757cc JA |
1269 | #if 0 |
1270 | log_info("fio: Send rkey %x addr %" PRIx64 " len %d to client\n", io_u->mr->rkey, io_u->buf, max_bs); */ | |
1271 | #endif | |
21b8aee8 | 1272 | } |
1273 | ||
1274 | rd->send_buf.nr = htonl(i); | |
1275 | ||
1276 | return ret; | |
21b8aee8 | 1277 | } |
1278 | ||
1279 | static void fio_rdmaio_cleanup(struct thread_data *td) | |
1280 | { | |
1281 | struct rdmaio_data *rd = td->io_ops->data; | |
1282 | ||
222757cc | 1283 | if (rd) |
21b8aee8 | 1284 | free(rd); |
21b8aee8 | 1285 | } |
1286 | ||
1287 | static int fio_rdmaio_setup(struct thread_data *td) | |
1288 | { | |
1289 | struct rdmaio_data *rd; | |
1290 | ||
cdf91594 LG |
1291 | if (!td->files_index) { |
1292 | add_file(td, td->o.filename ?: "rdma", 0, 0); | |
1293 | td->o.nr_files = td->o.nr_files ?: 1; | |
1294 | td->o.open_files++; | |
1295 | } | |
1296 | ||
21b8aee8 | 1297 | if (!td->io_ops->data) { |
222757cc | 1298 | rd = malloc(sizeof(*rd)); |
21b8aee8 | 1299 | |
1300 | memset(rd, 0, sizeof(*rd)); | |
ec4dde59 | 1301 | init_rand_seed(&rd->rand_state, (unsigned int) GOLDEN_RATIO_PRIME, 0); |
21b8aee8 | 1302 | td->io_ops->data = rd; |
1303 | } | |
1304 | ||
1305 | return 0; | |
1306 | } | |
1307 | ||
1308 | static struct ioengine_ops ioengine_rw = { | |
cdf91594 LG |
1309 | .name = "rdma", |
1310 | .version = FIO_IOOPS_VERSION, | |
1311 | .setup = fio_rdmaio_setup, | |
1312 | .init = fio_rdmaio_init, | |
1313 | .prep = fio_rdmaio_prep, | |
1314 | .queue = fio_rdmaio_queue, | |
1315 | .commit = fio_rdmaio_commit, | |
1316 | .getevents = fio_rdmaio_getevents, | |
1317 | .event = fio_rdmaio_event, | |
1318 | .cleanup = fio_rdmaio_cleanup, | |
1319 | .open_file = fio_rdmaio_open_file, | |
1320 | .close_file = fio_rdmaio_close_file, | |
1321 | .flags = FIO_DISKLESSIO | FIO_UNIDIR | FIO_PIPEIO, | |
1322 | .options = options, | |
1323 | .option_struct_size = sizeof(struct rdmaio_options), | |
21b8aee8 | 1324 | }; |
1325 | ||
21b8aee8 | 1326 | static void fio_init fio_rdmaio_register(void) |
1327 | { | |
1328 | register_ioengine(&ioengine_rw); | |
1329 | } | |
1330 | ||
1331 | static void fio_exit fio_rdmaio_unregister(void) | |
1332 | { | |
1333 | unregister_ioengine(&ioengine_rw); | |
1334 | } |