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" |
d220c761 | 44 | #include "../optgroup.h" |
21b8aee8 | 45 | |
21b8aee8 | 46 | #include <rdma/rdma_cma.h> |
21b8aee8 | 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, | |
ee386b78 | 118 | .help = "Posted Receive", |
cdf91594 LG |
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 | */ | |
c4421263 | 140 | uint32_t max_bs; /* maximum block size */ |
76cc5224 | 141 | struct remote_u rmt_us[FIO_RDMA_MAX_IO_DEPTH]; |
21b8aee8 | 142 | }; |
143 | ||
144 | struct rdma_io_u_data { | |
145 | uint64_t wr_id; | |
146 | struct ibv_send_wr sq_wr; | |
147 | struct ibv_recv_wr rq_wr; | |
148 | struct ibv_sge rdma_sgl; | |
149 | }; | |
150 | ||
151 | struct rdmaio_data { | |
152 | int is_client; | |
153 | enum rdma_io_mode rdma_protocol; | |
154 | char host[64]; | |
155 | struct sockaddr_in addr; | |
156 | ||
157 | struct ibv_recv_wr rq_wr; | |
158 | struct ibv_sge recv_sgl; | |
159 | struct rdma_info_blk recv_buf; | |
160 | struct ibv_mr *recv_mr; | |
161 | ||
162 | struct ibv_send_wr sq_wr; | |
163 | struct ibv_sge send_sgl; | |
164 | struct rdma_info_blk send_buf; | |
165 | struct ibv_mr *send_mr; | |
166 | ||
167 | struct ibv_comp_channel *channel; | |
168 | struct ibv_cq *cq; | |
169 | struct ibv_pd *pd; | |
170 | struct ibv_qp *qp; | |
171 | ||
172 | pthread_t cmthread; | |
173 | struct rdma_event_channel *cm_channel; | |
174 | struct rdma_cm_id *cm_id; | |
175 | struct rdma_cm_id *child_cm_id; | |
176 | ||
177 | int cq_event_num; | |
178 | ||
179 | struct remote_u *rmt_us; | |
180 | int rmt_nr; | |
181 | struct io_u **io_us_queued; | |
182 | int io_u_queued_nr; | |
183 | struct io_u **io_us_flight; | |
184 | int io_u_flight_nr; | |
185 | struct io_u **io_us_completed; | |
186 | int io_u_completed_nr; | |
ea6209ad JA |
187 | |
188 | struct frand_state rand_state; | |
21b8aee8 | 189 | }; |
190 | ||
191 | static int client_recv(struct thread_data *td, struct ibv_wc *wc) | |
192 | { | |
565e784d | 193 | struct rdmaio_data *rd = td->io_ops_data; |
c4421263 | 194 | unsigned int max_bs; |
21b8aee8 | 195 | |
196 | if (wc->byte_len != sizeof(rd->recv_buf)) { | |
b6cf38f0 | 197 | log_err("Received bogus data, size %d\n", wc->byte_len); |
21b8aee8 | 198 | return 1; |
199 | } | |
200 | ||
c4421263 LG |
201 | max_bs = max(td->o.max_bs[DDIR_READ], td->o.max_bs[DDIR_WRITE]); |
202 | if (max_bs > ntohl(rd->recv_buf.max_bs)) { | |
203 | log_err("fio: Server's block size (%d) must be greater than or " | |
204 | "equal to the client's block size (%d)!\n", | |
205 | ntohl(rd->recv_buf.max_bs), max_bs); | |
206 | return 1; | |
207 | } | |
208 | ||
21b8aee8 | 209 | /* store mr info for MEMORY semantic */ |
210 | if ((rd->rdma_protocol == FIO_RDMA_MEM_WRITE) || | |
211 | (rd->rdma_protocol == FIO_RDMA_MEM_READ)) { | |
212 | /* struct flist_head *entry; */ | |
213 | int i = 0; | |
214 | ||
215 | rd->rmt_nr = ntohl(rd->recv_buf.nr); | |
216 | ||
217 | for (i = 0; i < rd->rmt_nr; i++) { | |
b747af64 | 218 | rd->rmt_us[i].buf = be64_to_cpu(rd->recv_buf.rmt_us[i].buf); |
21b8aee8 | 219 | rd->rmt_us[i].rkey = ntohl(rd->recv_buf.rmt_us[i].rkey); |
220 | rd->rmt_us[i].size = ntohl(rd->recv_buf.rmt_us[i].size); | |
221 | ||
222 | dprint(FD_IO, | |
223 | "fio: Received rkey %x addr %" PRIx64 | |
224 | " len %d from peer\n", rd->rmt_us[i].rkey, | |
225 | rd->rmt_us[i].buf, rd->rmt_us[i].size); | |
226 | } | |
227 | } | |
228 | ||
229 | return 0; | |
230 | } | |
231 | ||
232 | static int server_recv(struct thread_data *td, struct ibv_wc *wc) | |
233 | { | |
565e784d | 234 | struct rdmaio_data *rd = td->io_ops_data; |
c4421263 | 235 | unsigned int max_bs; |
21b8aee8 | 236 | |
76cc5224 | 237 | if (wc->wr_id == FIO_RDMA_MAX_IO_DEPTH) { |
21b8aee8 | 238 | rd->rdma_protocol = ntohl(rd->recv_buf.mode); |
239 | ||
240 | /* CHANNEL semantic, do nothing */ | |
241 | if (rd->rdma_protocol == FIO_RDMA_CHA_SEND) | |
242 | rd->rdma_protocol = FIO_RDMA_CHA_RECV; | |
c4421263 LG |
243 | |
244 | max_bs = max(td->o.max_bs[DDIR_READ], td->o.max_bs[DDIR_WRITE]); | |
245 | if (max_bs < ntohl(rd->recv_buf.max_bs)) { | |
246 | log_err("fio: Server's block size (%d) must be greater than or " | |
247 | "equal to the client's block size (%d)!\n", | |
248 | ntohl(rd->recv_buf.max_bs), max_bs); | |
249 | return 1; | |
250 | } | |
251 | ||
21b8aee8 | 252 | } |
253 | ||
254 | return 0; | |
255 | } | |
256 | ||
257 | static int cq_event_handler(struct thread_data *td, enum ibv_wc_opcode opcode) | |
258 | { | |
565e784d | 259 | struct rdmaio_data *rd = td->io_ops_data; |
21b8aee8 | 260 | struct ibv_wc wc; |
261 | struct rdma_io_u_data *r_io_u_d; | |
262 | int ret; | |
263 | int compevnum = 0; | |
264 | int i; | |
265 | ||
266 | while ((ret = ibv_poll_cq(rd->cq, 1, &wc)) == 1) { | |
267 | ret = 0; | |
268 | compevnum++; | |
269 | ||
270 | if (wc.status) { | |
271 | log_err("fio: cq completion status %d(%s)\n", | |
272 | wc.status, ibv_wc_status_str(wc.status)); | |
273 | return -1; | |
274 | } | |
275 | ||
276 | switch (wc.opcode) { | |
277 | ||
278 | case IBV_WC_RECV: | |
279 | if (rd->is_client == 1) | |
c4421263 | 280 | ret = client_recv(td, &wc); |
21b8aee8 | 281 | else |
c4421263 LG |
282 | ret = server_recv(td, &wc); |
283 | ||
284 | if (ret) | |
285 | return -1; | |
21b8aee8 | 286 | |
76cc5224 | 287 | if (wc.wr_id == FIO_RDMA_MAX_IO_DEPTH) |
21b8aee8 | 288 | break; |
289 | ||
290 | for (i = 0; i < rd->io_u_flight_nr; i++) { | |
291 | r_io_u_d = rd->io_us_flight[i]->engine_data; | |
292 | ||
293 | if (wc.wr_id == r_io_u_d->rq_wr.wr_id) { | |
294 | rd->io_us_flight[i]->resid = | |
295 | rd->io_us_flight[i]->buflen | |
296 | - wc.byte_len; | |
297 | ||
298 | rd->io_us_flight[i]->error = 0; | |
299 | ||
300 | rd->io_us_completed[rd-> | |
301 | io_u_completed_nr] | |
302 | = rd->io_us_flight[i]; | |
303 | rd->io_u_completed_nr++; | |
304 | break; | |
305 | } | |
306 | } | |
307 | if (i == rd->io_u_flight_nr) | |
e07f72d3 | 308 | log_err("fio: recv wr %" PRId64 " not found\n", |
21b8aee8 | 309 | wc.wr_id); |
310 | else { | |
311 | /* put the last one into middle of the list */ | |
312 | rd->io_us_flight[i] = | |
313 | rd->io_us_flight[rd->io_u_flight_nr - 1]; | |
314 | rd->io_u_flight_nr--; | |
315 | } | |
316 | ||
317 | break; | |
318 | ||
319 | case IBV_WC_SEND: | |
320 | case IBV_WC_RDMA_WRITE: | |
321 | case IBV_WC_RDMA_READ: | |
76cc5224 | 322 | if (wc.wr_id == FIO_RDMA_MAX_IO_DEPTH) |
21b8aee8 | 323 | break; |
324 | ||
325 | for (i = 0; i < rd->io_u_flight_nr; i++) { | |
326 | r_io_u_d = rd->io_us_flight[i]->engine_data; | |
327 | ||
328 | if (wc.wr_id == r_io_u_d->sq_wr.wr_id) { | |
329 | rd->io_us_completed[rd-> | |
330 | io_u_completed_nr] | |
331 | = rd->io_us_flight[i]; | |
332 | rd->io_u_completed_nr++; | |
333 | break; | |
334 | } | |
335 | } | |
336 | if (i == rd->io_u_flight_nr) | |
e07f72d3 | 337 | log_err("fio: send wr %" PRId64 " not found\n", |
21b8aee8 | 338 | wc.wr_id); |
339 | else { | |
340 | /* put the last one into middle of the list */ | |
341 | rd->io_us_flight[i] = | |
342 | rd->io_us_flight[rd->io_u_flight_nr - 1]; | |
343 | rd->io_u_flight_nr--; | |
344 | } | |
345 | ||
346 | break; | |
347 | ||
348 | default: | |
349 | log_info("fio: unknown completion event %d\n", | |
350 | wc.opcode); | |
351 | return -1; | |
352 | } | |
353 | rd->cq_event_num++; | |
354 | } | |
c4421263 | 355 | |
21b8aee8 | 356 | if (ret) { |
357 | log_err("fio: poll error %d\n", ret); | |
358 | return 1; | |
359 | } | |
360 | ||
361 | return compevnum; | |
362 | } | |
363 | ||
364 | /* | |
365 | * Return -1 for error and 'nr events' for a positive number | |
366 | * of events | |
367 | */ | |
368 | static int rdma_poll_wait(struct thread_data *td, enum ibv_wc_opcode opcode) | |
369 | { | |
565e784d | 370 | struct rdmaio_data *rd = td->io_ops_data; |
21b8aee8 | 371 | struct ibv_cq *ev_cq; |
372 | void *ev_ctx; | |
373 | int ret; | |
374 | ||
375 | if (rd->cq_event_num > 0) { /* previous left */ | |
376 | rd->cq_event_num--; | |
377 | return 0; | |
378 | } | |
379 | ||
380 | again: | |
381 | if (ibv_get_cq_event(rd->channel, &ev_cq, &ev_ctx) != 0) { | |
382 | log_err("fio: Failed to get cq event!\n"); | |
383 | return -1; | |
384 | } | |
385 | if (ev_cq != rd->cq) { | |
386 | log_err("fio: Unknown CQ!\n"); | |
387 | return -1; | |
388 | } | |
389 | if (ibv_req_notify_cq(rd->cq, 0) != 0) { | |
390 | log_err("fio: Failed to set notify!\n"); | |
391 | return -1; | |
392 | } | |
393 | ||
394 | ret = cq_event_handler(td, opcode); | |
c4421263 | 395 | if (ret == 0) |
21b8aee8 | 396 | goto again; |
397 | ||
398 | ibv_ack_cq_events(rd->cq, ret); | |
399 | ||
400 | rd->cq_event_num--; | |
401 | ||
402 | return ret; | |
403 | } | |
404 | ||
405 | static int fio_rdmaio_setup_qp(struct thread_data *td) | |
406 | { | |
565e784d | 407 | struct rdmaio_data *rd = td->io_ops_data; |
21b8aee8 | 408 | struct ibv_qp_init_attr init_attr; |
409 | int qp_depth = td->o.iodepth * 2; /* 2 times of io depth */ | |
410 | ||
411 | if (rd->is_client == 0) | |
412 | rd->pd = ibv_alloc_pd(rd->child_cm_id->verbs); | |
413 | else | |
414 | rd->pd = ibv_alloc_pd(rd->cm_id->verbs); | |
222757cc | 415 | |
21b8aee8 | 416 | if (rd->pd == NULL) { |
2a442a30 | 417 | log_err("fio: ibv_alloc_pd fail: %m\n"); |
21b8aee8 | 418 | return 1; |
419 | } | |
420 | ||
421 | if (rd->is_client == 0) | |
422 | rd->channel = ibv_create_comp_channel(rd->child_cm_id->verbs); | |
423 | else | |
424 | rd->channel = ibv_create_comp_channel(rd->cm_id->verbs); | |
425 | if (rd->channel == NULL) { | |
2a442a30 | 426 | log_err("fio: ibv_create_comp_channel fail: %m\n"); |
21b8aee8 | 427 | goto err1; |
428 | } | |
429 | ||
430 | if (qp_depth < 16) | |
431 | qp_depth = 16; | |
432 | ||
433 | if (rd->is_client == 0) | |
434 | rd->cq = ibv_create_cq(rd->child_cm_id->verbs, | |
435 | qp_depth, rd, rd->channel, 0); | |
436 | else | |
437 | rd->cq = ibv_create_cq(rd->cm_id->verbs, | |
438 | qp_depth, rd, rd->channel, 0); | |
439 | if (rd->cq == NULL) { | |
2a442a30 | 440 | log_err("fio: ibv_create_cq failed: %m\n"); |
21b8aee8 | 441 | goto err2; |
442 | } | |
443 | ||
444 | if (ibv_req_notify_cq(rd->cq, 0) != 0) { | |
2a442a30 | 445 | log_err("fio: ibv_req_notify_cq failed: %m\n"); |
21b8aee8 | 446 | goto err3; |
447 | } | |
448 | ||
449 | /* create queue pair */ | |
450 | memset(&init_attr, 0, sizeof(init_attr)); | |
451 | init_attr.cap.max_send_wr = qp_depth; | |
452 | init_attr.cap.max_recv_wr = qp_depth; | |
453 | init_attr.cap.max_recv_sge = 1; | |
454 | init_attr.cap.max_send_sge = 1; | |
455 | init_attr.qp_type = IBV_QPT_RC; | |
456 | init_attr.send_cq = rd->cq; | |
457 | init_attr.recv_cq = rd->cq; | |
458 | ||
459 | if (rd->is_client == 0) { | |
460 | if (rdma_create_qp(rd->child_cm_id, rd->pd, &init_attr) != 0) { | |
2a442a30 | 461 | log_err("fio: rdma_create_qp failed: %m\n"); |
21b8aee8 | 462 | goto err3; |
463 | } | |
464 | rd->qp = rd->child_cm_id->qp; | |
465 | } else { | |
466 | if (rdma_create_qp(rd->cm_id, rd->pd, &init_attr) != 0) { | |
2a442a30 | 467 | log_err("fio: rdma_create_qp failed: %m\n"); |
21b8aee8 | 468 | goto err3; |
469 | } | |
470 | rd->qp = rd->cm_id->qp; | |
471 | } | |
472 | ||
473 | return 0; | |
474 | ||
475 | err3: | |
476 | ibv_destroy_cq(rd->cq); | |
477 | err2: | |
478 | ibv_destroy_comp_channel(rd->channel); | |
479 | err1: | |
480 | ibv_dealloc_pd(rd->pd); | |
481 | ||
482 | return 1; | |
483 | } | |
484 | ||
485 | static int fio_rdmaio_setup_control_msg_buffers(struct thread_data *td) | |
486 | { | |
565e784d | 487 | struct rdmaio_data *rd = td->io_ops_data; |
21b8aee8 | 488 | |
489 | rd->recv_mr = ibv_reg_mr(rd->pd, &rd->recv_buf, sizeof(rd->recv_buf), | |
490 | IBV_ACCESS_LOCAL_WRITE); | |
491 | if (rd->recv_mr == NULL) { | |
2a442a30 | 492 | log_err("fio: recv_buf reg_mr failed: %m\n"); |
21b8aee8 | 493 | return 1; |
494 | } | |
495 | ||
496 | rd->send_mr = ibv_reg_mr(rd->pd, &rd->send_buf, sizeof(rd->send_buf), | |
497 | 0); | |
498 | if (rd->send_mr == NULL) { | |
2a442a30 | 499 | log_err("fio: send_buf reg_mr failed: %m\n"); |
21b8aee8 | 500 | ibv_dereg_mr(rd->recv_mr); |
501 | return 1; | |
502 | } | |
503 | ||
504 | /* setup work request */ | |
505 | /* recv wq */ | |
506 | rd->recv_sgl.addr = (uint64_t) (unsigned long)&rd->recv_buf; | |
222757cc | 507 | rd->recv_sgl.length = sizeof(rd->recv_buf); |
21b8aee8 | 508 | rd->recv_sgl.lkey = rd->recv_mr->lkey; |
509 | rd->rq_wr.sg_list = &rd->recv_sgl; | |
510 | rd->rq_wr.num_sge = 1; | |
76cc5224 | 511 | rd->rq_wr.wr_id = FIO_RDMA_MAX_IO_DEPTH; |
21b8aee8 | 512 | |
513 | /* send wq */ | |
514 | rd->send_sgl.addr = (uint64_t) (unsigned long)&rd->send_buf; | |
222757cc | 515 | rd->send_sgl.length = sizeof(rd->send_buf); |
21b8aee8 | 516 | rd->send_sgl.lkey = rd->send_mr->lkey; |
517 | ||
518 | rd->sq_wr.opcode = IBV_WR_SEND; | |
519 | rd->sq_wr.send_flags = IBV_SEND_SIGNALED; | |
520 | rd->sq_wr.sg_list = &rd->send_sgl; | |
521 | rd->sq_wr.num_sge = 1; | |
76cc5224 | 522 | rd->sq_wr.wr_id = FIO_RDMA_MAX_IO_DEPTH; |
21b8aee8 | 523 | |
524 | return 0; | |
525 | } | |
526 | ||
527 | static int get_next_channel_event(struct thread_data *td, | |
528 | struct rdma_event_channel *channel, | |
529 | enum rdma_cm_event_type wait_event) | |
530 | { | |
565e784d | 531 | struct rdmaio_data *rd = td->io_ops_data; |
21b8aee8 | 532 | struct rdma_cm_event *event; |
222757cc | 533 | int ret; |
21b8aee8 | 534 | |
535 | ret = rdma_get_cm_event(channel, &event); | |
536 | if (ret) { | |
222757cc | 537 | log_err("fio: rdma_get_cm_event: %d\n", ret); |
21b8aee8 | 538 | return 1; |
539 | } | |
540 | ||
541 | if (event->event != wait_event) { | |
542 | log_err("fio: event is %s instead of %s\n", | |
543 | rdma_event_str(event->event), | |
544 | rdma_event_str(wait_event)); | |
545 | return 1; | |
546 | } | |
547 | ||
548 | switch (event->event) { | |
549 | case RDMA_CM_EVENT_CONNECT_REQUEST: | |
550 | rd->child_cm_id = event->id; | |
551 | break; | |
552 | default: | |
553 | break; | |
554 | } | |
555 | ||
556 | rdma_ack_cm_event(event); | |
557 | ||
558 | return 0; | |
559 | } | |
560 | ||
561 | static int fio_rdmaio_prep(struct thread_data *td, struct io_u *io_u) | |
562 | { | |
565e784d | 563 | struct rdmaio_data *rd = td->io_ops_data; |
21b8aee8 | 564 | struct rdma_io_u_data *r_io_u_d; |
565 | ||
566 | r_io_u_d = io_u->engine_data; | |
567 | ||
568 | switch (rd->rdma_protocol) { | |
569 | case FIO_RDMA_MEM_WRITE: | |
570 | case FIO_RDMA_MEM_READ: | |
571 | r_io_u_d->rdma_sgl.addr = (uint64_t) (unsigned long)io_u->buf; | |
572 | r_io_u_d->rdma_sgl.lkey = io_u->mr->lkey; | |
573 | r_io_u_d->sq_wr.wr_id = r_io_u_d->wr_id; | |
574 | r_io_u_d->sq_wr.send_flags = IBV_SEND_SIGNALED; | |
575 | r_io_u_d->sq_wr.sg_list = &r_io_u_d->rdma_sgl; | |
576 | r_io_u_d->sq_wr.num_sge = 1; | |
577 | break; | |
578 | case FIO_RDMA_CHA_SEND: | |
579 | r_io_u_d->rdma_sgl.addr = (uint64_t) (unsigned long)io_u->buf; | |
580 | r_io_u_d->rdma_sgl.lkey = io_u->mr->lkey; | |
581 | r_io_u_d->rdma_sgl.length = io_u->buflen; | |
582 | r_io_u_d->sq_wr.wr_id = r_io_u_d->wr_id; | |
583 | r_io_u_d->sq_wr.opcode = IBV_WR_SEND; | |
584 | r_io_u_d->sq_wr.send_flags = IBV_SEND_SIGNALED; | |
585 | r_io_u_d->sq_wr.sg_list = &r_io_u_d->rdma_sgl; | |
586 | r_io_u_d->sq_wr.num_sge = 1; | |
587 | break; | |
588 | case FIO_RDMA_CHA_RECV: | |
589 | r_io_u_d->rdma_sgl.addr = (uint64_t) (unsigned long)io_u->buf; | |
590 | r_io_u_d->rdma_sgl.lkey = io_u->mr->lkey; | |
591 | r_io_u_d->rdma_sgl.length = io_u->buflen; | |
592 | r_io_u_d->rq_wr.wr_id = r_io_u_d->wr_id; | |
593 | r_io_u_d->rq_wr.sg_list = &r_io_u_d->rdma_sgl; | |
594 | r_io_u_d->rq_wr.num_sge = 1; | |
595 | break; | |
596 | default: | |
597 | log_err("fio: unknown rdma protocol - %d\n", rd->rdma_protocol); | |
598 | break; | |
599 | } | |
600 | ||
601 | return 0; | |
602 | } | |
603 | ||
604 | static struct io_u *fio_rdmaio_event(struct thread_data *td, int event) | |
605 | { | |
565e784d | 606 | struct rdmaio_data *rd = td->io_ops_data; |
21b8aee8 | 607 | struct io_u *io_u; |
608 | int i; | |
609 | ||
610 | io_u = rd->io_us_completed[0]; | |
222757cc | 611 | for (i = 0; i < rd->io_u_completed_nr - 1; i++) |
21b8aee8 | 612 | rd->io_us_completed[i] = rd->io_us_completed[i + 1]; |
222757cc | 613 | |
21b8aee8 | 614 | rd->io_u_completed_nr--; |
615 | ||
616 | dprint_io_u(io_u, "fio_rdmaio_event"); | |
617 | ||
618 | return io_u; | |
619 | } | |
620 | ||
621 | static int fio_rdmaio_getevents(struct thread_data *td, unsigned int min, | |
1f440ece | 622 | unsigned int max, const struct timespec *t) |
21b8aee8 | 623 | { |
565e784d | 624 | struct rdmaio_data *rd = td->io_ops_data; |
21b8aee8 | 625 | enum ibv_wc_opcode comp_opcode; |
21b8aee8 | 626 | struct ibv_cq *ev_cq; |
627 | void *ev_ctx; | |
222757cc | 628 | int ret, r = 0; |
954cd73a | 629 | comp_opcode = IBV_WC_RDMA_WRITE; |
21b8aee8 | 630 | |
631 | switch (rd->rdma_protocol) { | |
632 | case FIO_RDMA_MEM_WRITE: | |
633 | comp_opcode = IBV_WC_RDMA_WRITE; | |
634 | break; | |
635 | case FIO_RDMA_MEM_READ: | |
636 | comp_opcode = IBV_WC_RDMA_READ; | |
637 | break; | |
638 | case FIO_RDMA_CHA_SEND: | |
639 | comp_opcode = IBV_WC_SEND; | |
640 | break; | |
641 | case FIO_RDMA_CHA_RECV: | |
642 | comp_opcode = IBV_WC_RECV; | |
643 | break; | |
644 | default: | |
645 | log_err("fio: unknown rdma protocol - %d\n", rd->rdma_protocol); | |
646 | break; | |
647 | } | |
648 | ||
649 | if (rd->cq_event_num > 0) { /* previous left */ | |
650 | rd->cq_event_num--; | |
651 | return 0; | |
652 | } | |
653 | ||
654 | again: | |
655 | if (ibv_get_cq_event(rd->channel, &ev_cq, &ev_ctx) != 0) { | |
656 | log_err("fio: Failed to get cq event!\n"); | |
657 | return -1; | |
658 | } | |
659 | if (ev_cq != rd->cq) { | |
660 | log_err("fio: Unknown CQ!\n"); | |
661 | return -1; | |
662 | } | |
663 | if (ibv_req_notify_cq(rd->cq, 0) != 0) { | |
664 | log_err("fio: Failed to set notify!\n"); | |
665 | return -1; | |
666 | } | |
667 | ||
668 | ret = cq_event_handler(td, comp_opcode); | |
669 | if (ret < 1) | |
670 | goto again; | |
671 | ||
672 | ibv_ack_cq_events(rd->cq, ret); | |
673 | ||
674 | r += ret; | |
675 | if (r < min) | |
676 | goto again; | |
677 | ||
678 | rd->cq_event_num -= r; | |
679 | ||
680 | return r; | |
681 | } | |
682 | ||
683 | static int fio_rdmaio_send(struct thread_data *td, struct io_u **io_us, | |
684 | unsigned int nr) | |
685 | { | |
565e784d | 686 | struct rdmaio_data *rd = td->io_ops_data; |
21b8aee8 | 687 | struct ibv_send_wr *bad_wr; |
e07f72d3 | 688 | #if 0 |
21b8aee8 | 689 | enum ibv_wc_opcode comp_opcode; |
690 | comp_opcode = IBV_WC_RDMA_WRITE; | |
e07f72d3 | 691 | #endif |
7d7803fa YR |
692 | int i; |
693 | long index; | |
21b8aee8 | 694 | struct rdma_io_u_data *r_io_u_d; |
695 | ||
696 | r_io_u_d = NULL; | |
697 | ||
698 | for (i = 0; i < nr; i++) { | |
699 | /* RDMA_WRITE or RDMA_READ */ | |
700 | switch (rd->rdma_protocol) { | |
701 | case FIO_RDMA_MEM_WRITE: | |
702 | /* compose work request */ | |
703 | r_io_u_d = io_us[i]->engine_data; | |
222757cc | 704 | index = __rand(&rd->rand_state) % rd->rmt_nr; |
21b8aee8 | 705 | r_io_u_d->sq_wr.opcode = IBV_WR_RDMA_WRITE; |
706 | r_io_u_d->sq_wr.wr.rdma.rkey = rd->rmt_us[index].rkey; | |
b6cf38f0 YR |
707 | r_io_u_d->sq_wr.wr.rdma.remote_addr = \ |
708 | rd->rmt_us[index].buf; | |
21b8aee8 | 709 | r_io_u_d->sq_wr.sg_list->length = io_us[i]->buflen; |
710 | break; | |
711 | case FIO_RDMA_MEM_READ: | |
712 | /* compose work request */ | |
713 | r_io_u_d = io_us[i]->engine_data; | |
222757cc | 714 | index = __rand(&rd->rand_state) % rd->rmt_nr; |
21b8aee8 | 715 | r_io_u_d->sq_wr.opcode = IBV_WR_RDMA_READ; |
716 | r_io_u_d->sq_wr.wr.rdma.rkey = rd->rmt_us[index].rkey; | |
b6cf38f0 YR |
717 | r_io_u_d->sq_wr.wr.rdma.remote_addr = \ |
718 | rd->rmt_us[index].buf; | |
21b8aee8 | 719 | r_io_u_d->sq_wr.sg_list->length = io_us[i]->buflen; |
720 | break; | |
721 | case FIO_RDMA_CHA_SEND: | |
722 | r_io_u_d = io_us[i]->engine_data; | |
723 | r_io_u_d->sq_wr.opcode = IBV_WR_SEND; | |
724 | r_io_u_d->sq_wr.send_flags = IBV_SEND_SIGNALED; | |
725 | break; | |
726 | default: | |
727 | log_err("fio: unknown rdma protocol - %d\n", | |
728 | rd->rdma_protocol); | |
729 | break; | |
730 | } | |
731 | ||
732 | if (ibv_post_send(rd->qp, &r_io_u_d->sq_wr, &bad_wr) != 0) { | |
2a442a30 | 733 | log_err("fio: ibv_post_send fail: %m\n"); |
21b8aee8 | 734 | return -1; |
735 | } | |
736 | ||
737 | dprint_io_u(io_us[i], "fio_rdmaio_send"); | |
738 | } | |
739 | ||
740 | /* wait for completion | |
741 | rdma_poll_wait(td, comp_opcode); */ | |
742 | ||
743 | return i; | |
744 | } | |
745 | ||
746 | static int fio_rdmaio_recv(struct thread_data *td, struct io_u **io_us, | |
747 | unsigned int nr) | |
748 | { | |
565e784d | 749 | struct rdmaio_data *rd = td->io_ops_data; |
21b8aee8 | 750 | struct ibv_recv_wr *bad_wr; |
751 | struct rdma_io_u_data *r_io_u_d; | |
752 | int i; | |
753 | ||
754 | i = 0; | |
755 | if (rd->rdma_protocol == FIO_RDMA_CHA_RECV) { | |
756 | /* post io_u into recv queue */ | |
757 | for (i = 0; i < nr; i++) { | |
758 | r_io_u_d = io_us[i]->engine_data; | |
759 | if (ibv_post_recv(rd->qp, &r_io_u_d->rq_wr, &bad_wr) != | |
760 | 0) { | |
2a442a30 | 761 | log_err("fio: ibv_post_recv fail: %m\n"); |
21b8aee8 | 762 | return 1; |
763 | } | |
764 | } | |
765 | } else if ((rd->rdma_protocol == FIO_RDMA_MEM_READ) | |
766 | || (rd->rdma_protocol == FIO_RDMA_MEM_WRITE)) { | |
767 | /* re-post the rq_wr */ | |
768 | if (ibv_post_recv(rd->qp, &rd->rq_wr, &bad_wr) != 0) { | |
2a442a30 | 769 | log_err("fio: ibv_post_recv fail: %m\n"); |
21b8aee8 | 770 | return 1; |
771 | } | |
772 | ||
773 | rdma_poll_wait(td, IBV_WC_RECV); | |
774 | ||
775 | dprint(FD_IO, "fio: recv FINISH message\n"); | |
a05d62b2 YR |
776 | td->done = 1; |
777 | return 0; | |
21b8aee8 | 778 | } |
779 | ||
780 | return i; | |
781 | } | |
782 | ||
783 | static int fio_rdmaio_queue(struct thread_data *td, struct io_u *io_u) | |
784 | { | |
565e784d | 785 | struct rdmaio_data *rd = td->io_ops_data; |
21b8aee8 | 786 | |
787 | fio_ro_check(td, io_u); | |
788 | ||
789 | if (rd->io_u_queued_nr == (int)td->o.iodepth) | |
790 | return FIO_Q_BUSY; | |
791 | ||
792 | rd->io_us_queued[rd->io_u_queued_nr] = io_u; | |
793 | rd->io_u_queued_nr++; | |
794 | ||
795 | dprint_io_u(io_u, "fio_rdmaio_queue"); | |
796 | ||
797 | return FIO_Q_QUEUED; | |
798 | } | |
799 | ||
800 | static void fio_rdmaio_queued(struct thread_data *td, struct io_u **io_us, | |
801 | unsigned int nr) | |
802 | { | |
565e784d | 803 | struct rdmaio_data *rd = td->io_ops_data; |
8b6a404c | 804 | struct timespec now; |
21b8aee8 | 805 | unsigned int i; |
806 | ||
807 | if (!fio_fill_issue_time(td)) | |
808 | return; | |
809 | ||
810 | fio_gettime(&now, NULL); | |
811 | ||
812 | for (i = 0; i < nr; i++) { | |
813 | struct io_u *io_u = io_us[i]; | |
814 | ||
815 | /* queued -> flight */ | |
816 | rd->io_us_flight[rd->io_u_flight_nr] = io_u; | |
817 | rd->io_u_flight_nr++; | |
818 | ||
819 | memcpy(&io_u->issue_time, &now, sizeof(now)); | |
820 | io_u_queued(td, io_u); | |
821 | } | |
822 | } | |
823 | ||
824 | static int fio_rdmaio_commit(struct thread_data *td) | |
825 | { | |
565e784d | 826 | struct rdmaio_data *rd = td->io_ops_data; |
21b8aee8 | 827 | struct io_u **io_us; |
828 | int ret; | |
829 | ||
830 | if (!rd->io_us_queued) | |
831 | return 0; | |
832 | ||
833 | io_us = rd->io_us_queued; | |
834 | do { | |
835 | /* RDMA_WRITE or RDMA_READ */ | |
222757cc | 836 | if (rd->is_client) |
21b8aee8 | 837 | ret = fio_rdmaio_send(td, io_us, rd->io_u_queued_nr); |
222757cc | 838 | else if (!rd->is_client) |
21b8aee8 | 839 | ret = fio_rdmaio_recv(td, io_us, rd->io_u_queued_nr); |
222757cc | 840 | else |
21b8aee8 | 841 | ret = 0; /* must be a SYNC */ |
842 | ||
843 | if (ret > 0) { | |
844 | fio_rdmaio_queued(td, io_us, ret); | |
845 | io_u_mark_submit(td, ret); | |
846 | rd->io_u_queued_nr -= ret; | |
847 | io_us += ret; | |
848 | ret = 0; | |
849 | } else | |
850 | break; | |
851 | } while (rd->io_u_queued_nr); | |
852 | ||
853 | return ret; | |
854 | } | |
855 | ||
856 | static int fio_rdmaio_connect(struct thread_data *td, struct fio_file *f) | |
857 | { | |
565e784d | 858 | struct rdmaio_data *rd = td->io_ops_data; |
21b8aee8 | 859 | struct rdma_conn_param conn_param; |
860 | struct ibv_send_wr *bad_wr; | |
861 | ||
222757cc | 862 | memset(&conn_param, 0, sizeof(conn_param)); |
21b8aee8 | 863 | conn_param.responder_resources = 1; |
864 | conn_param.initiator_depth = 1; | |
865 | conn_param.retry_count = 10; | |
866 | ||
867 | if (rdma_connect(rd->cm_id, &conn_param) != 0) { | |
2a442a30 | 868 | log_err("fio: rdma_connect fail: %m\n"); |
21b8aee8 | 869 | return 1; |
870 | } | |
871 | ||
872 | if (get_next_channel_event | |
873 | (td, rd->cm_channel, RDMA_CM_EVENT_ESTABLISHED) != 0) { | |
874 | log_err("fio: wait for RDMA_CM_EVENT_ESTABLISHED\n"); | |
875 | return 1; | |
876 | } | |
877 | ||
878 | /* send task request */ | |
879 | rd->send_buf.mode = htonl(rd->rdma_protocol); | |
880 | rd->send_buf.nr = htonl(td->o.iodepth); | |
881 | ||
882 | if (ibv_post_send(rd->qp, &rd->sq_wr, &bad_wr) != 0) { | |
c5839011 | 883 | log_err("fio: ibv_post_send fail: %m\n"); |
21b8aee8 | 884 | return 1; |
885 | } | |
886 | ||
c4421263 LG |
887 | if (rdma_poll_wait(td, IBV_WC_SEND) < 0) |
888 | return 1; | |
21b8aee8 | 889 | |
890 | /* wait for remote MR info from server side */ | |
c4421263 LG |
891 | if (rdma_poll_wait(td, IBV_WC_RECV) < 0) |
892 | return 1; | |
21b8aee8 | 893 | |
7d7803fa YR |
894 | /* In SEND/RECV test, it's a good practice to setup the iodepth of |
895 | * of the RECV side deeper than that of the SEND side to | |
896 | * avoid RNR (receiver not ready) error. The | |
222757cc | 897 | * SEND side may send so many unsolicited message before |
7d7803fa YR |
898 | * RECV side commits sufficient recv buffers into recv queue. |
899 | * This may lead to RNR error. Here, SEND side pauses for a while | |
900 | * during which RECV side commits sufficient recv buffers. | |
901 | */ | |
902 | usleep(500000); | |
903 | ||
21b8aee8 | 904 | return 0; |
905 | } | |
906 | ||
907 | static int fio_rdmaio_accept(struct thread_data *td, struct fio_file *f) | |
908 | { | |
565e784d | 909 | struct rdmaio_data *rd = td->io_ops_data; |
21b8aee8 | 910 | struct rdma_conn_param conn_param; |
911 | struct ibv_send_wr *bad_wr; | |
c4421263 | 912 | int ret = 0; |
21b8aee8 | 913 | |
914 | /* rdma_accept() - then wait for accept success */ | |
222757cc | 915 | memset(&conn_param, 0, sizeof(conn_param)); |
21b8aee8 | 916 | conn_param.responder_resources = 1; |
917 | conn_param.initiator_depth = 1; | |
918 | ||
919 | if (rdma_accept(rd->child_cm_id, &conn_param) != 0) { | |
2a442a30 | 920 | log_err("fio: rdma_accept: %m\n"); |
21b8aee8 | 921 | return 1; |
922 | } | |
923 | ||
924 | if (get_next_channel_event | |
925 | (td, rd->cm_channel, RDMA_CM_EVENT_ESTABLISHED) != 0) { | |
926 | log_err("fio: wait for RDMA_CM_EVENT_ESTABLISHED\n"); | |
927 | return 1; | |
928 | } | |
929 | ||
930 | /* wait for request */ | |
c4421263 | 931 | ret = rdma_poll_wait(td, IBV_WC_RECV) < 0; |
21b8aee8 | 932 | |
933 | if (ibv_post_send(rd->qp, &rd->sq_wr, &bad_wr) != 0) { | |
c5839011 | 934 | log_err("fio: ibv_post_send fail: %m\n"); |
21b8aee8 | 935 | return 1; |
936 | } | |
937 | ||
c4421263 LG |
938 | if (rdma_poll_wait(td, IBV_WC_SEND) < 0) |
939 | return 1; | |
21b8aee8 | 940 | |
c4421263 | 941 | return ret; |
21b8aee8 | 942 | } |
943 | ||
944 | static int fio_rdmaio_open_file(struct thread_data *td, struct fio_file *f) | |
945 | { | |
946 | if (td_read(td)) | |
947 | return fio_rdmaio_accept(td, f); | |
948 | else | |
949 | return fio_rdmaio_connect(td, f); | |
950 | } | |
951 | ||
952 | static int fio_rdmaio_close_file(struct thread_data *td, struct fio_file *f) | |
953 | { | |
565e784d | 954 | struct rdmaio_data *rd = td->io_ops_data; |
21b8aee8 | 955 | struct ibv_send_wr *bad_wr; |
956 | ||
957 | /* unregister rdma buffer */ | |
958 | ||
959 | /* | |
960 | * Client sends notification to the server side | |
961 | */ | |
962 | /* refer to: http://linux.die.net/man/7/rdma_cm */ | |
963 | if ((rd->is_client == 1) && ((rd->rdma_protocol == FIO_RDMA_MEM_WRITE) | |
964 | || (rd->rdma_protocol == | |
965 | FIO_RDMA_MEM_READ))) { | |
966 | if (ibv_post_send(rd->qp, &rd->sq_wr, &bad_wr) != 0) { | |
c5839011 | 967 | log_err("fio: ibv_post_send fail: %m\n"); |
21b8aee8 | 968 | return 1; |
969 | } | |
970 | ||
de8f6de9 | 971 | dprint(FD_IO, "fio: close information sent success\n"); |
21b8aee8 | 972 | rdma_poll_wait(td, IBV_WC_SEND); |
973 | } | |
974 | ||
975 | if (rd->is_client == 1) | |
976 | rdma_disconnect(rd->cm_id); | |
977 | else { | |
978 | rdma_disconnect(rd->child_cm_id); | |
222757cc JA |
979 | #if 0 |
980 | rdma_disconnect(rd->cm_id); | |
981 | #endif | |
21b8aee8 | 982 | } |
983 | ||
222757cc JA |
984 | #if 0 |
985 | if (get_next_channel_event(td, rd->cm_channel, RDMA_CM_EVENT_DISCONNECTED) != 0) { | |
986 | log_err("fio: wait for RDMA_CM_EVENT_DISCONNECTED\n"); | |
987 | return 1; | |
988 | } | |
989 | #endif | |
21b8aee8 | 990 | |
21b8aee8 | 991 | ibv_destroy_cq(rd->cq); |
7d7803fa | 992 | ibv_destroy_qp(rd->qp); |
21b8aee8 | 993 | |
994 | if (rd->is_client == 1) | |
995 | rdma_destroy_id(rd->cm_id); | |
996 | else { | |
997 | rdma_destroy_id(rd->child_cm_id); | |
998 | rdma_destroy_id(rd->cm_id); | |
999 | } | |
1000 | ||
1001 | ibv_destroy_comp_channel(rd->channel); | |
1002 | ibv_dealloc_pd(rd->pd); | |
1003 | ||
1004 | return 0; | |
1005 | } | |
1006 | ||
1007 | static int fio_rdmaio_setup_connect(struct thread_data *td, const char *host, | |
1008 | unsigned short port) | |
1009 | { | |
565e784d | 1010 | struct rdmaio_data *rd = td->io_ops_data; |
21b8aee8 | 1011 | struct ibv_recv_wr *bad_wr; |
222757cc | 1012 | int err; |
21b8aee8 | 1013 | |
1014 | rd->addr.sin_family = AF_INET; | |
1015 | rd->addr.sin_port = htons(port); | |
1016 | ||
1017 | if (inet_aton(host, &rd->addr.sin_addr) != 1) { | |
1018 | struct hostent *hent; | |
1019 | ||
1020 | hent = gethostbyname(host); | |
1021 | if (!hent) { | |
1022 | td_verror(td, errno, "gethostbyname"); | |
1023 | return 1; | |
1024 | } | |
1025 | ||
1026 | memcpy(&rd->addr.sin_addr, hent->h_addr, 4); | |
1027 | } | |
1028 | ||
1029 | /* resolve route */ | |
222757cc JA |
1030 | err = rdma_resolve_addr(rd->cm_id, NULL, (struct sockaddr *)&rd->addr, 2000); |
1031 | if (err != 0) { | |
1032 | log_err("fio: rdma_resolve_addr: %d\n", err); | |
21b8aee8 | 1033 | return 1; |
1034 | } | |
1035 | ||
222757cc JA |
1036 | err = get_next_channel_event(td, rd->cm_channel, RDMA_CM_EVENT_ADDR_RESOLVED); |
1037 | if (err != 0) { | |
1038 | log_err("fio: get_next_channel_event: %d\n", err); | |
21b8aee8 | 1039 | return 1; |
1040 | } | |
1041 | ||
1042 | /* resolve route */ | |
222757cc JA |
1043 | err = rdma_resolve_route(rd->cm_id, 2000); |
1044 | if (err != 0) { | |
1045 | log_err("fio: rdma_resolve_route: %d\n", err); | |
21b8aee8 | 1046 | return 1; |
1047 | } | |
1048 | ||
222757cc JA |
1049 | err = get_next_channel_event(td, rd->cm_channel, RDMA_CM_EVENT_ROUTE_RESOLVED); |
1050 | if (err != 0) { | |
1051 | log_err("fio: get_next_channel_event: %d\n", err); | |
21b8aee8 | 1052 | return 1; |
1053 | } | |
1054 | ||
1055 | /* create qp and buffer */ | |
1056 | if (fio_rdmaio_setup_qp(td) != 0) | |
1057 | return 1; | |
1058 | ||
1059 | if (fio_rdmaio_setup_control_msg_buffers(td) != 0) | |
1060 | return 1; | |
1061 | ||
1062 | /* post recv buf */ | |
222757cc JA |
1063 | err = ibv_post_recv(rd->qp, &rd->rq_wr, &bad_wr); |
1064 | if (err != 0) { | |
1065 | log_err("fio: ibv_post_recv fail: %d\n", err); | |
21b8aee8 | 1066 | return 1; |
1067 | } | |
1068 | ||
1069 | return 0; | |
1070 | } | |
1071 | ||
1072 | static int fio_rdmaio_setup_listen(struct thread_data *td, short port) | |
1073 | { | |
565e784d | 1074 | struct rdmaio_data *rd = td->io_ops_data; |
21b8aee8 | 1075 | struct ibv_recv_wr *bad_wr; |
263775ad LG |
1076 | int state = td->runstate; |
1077 | ||
1078 | td_set_runstate(td, TD_SETTING_UP); | |
21b8aee8 | 1079 | |
1080 | rd->addr.sin_family = AF_INET; | |
1081 | rd->addr.sin_addr.s_addr = htonl(INADDR_ANY); | |
1082 | rd->addr.sin_port = htons(port); | |
1083 | ||
1084 | /* rdma_listen */ | |
1085 | if (rdma_bind_addr(rd->cm_id, (struct sockaddr *)&rd->addr) != 0) { | |
2a442a30 | 1086 | log_err("fio: rdma_bind_addr fail: %m\n"); |
21b8aee8 | 1087 | return 1; |
1088 | } | |
1089 | ||
1090 | if (rdma_listen(rd->cm_id, 3) != 0) { | |
2a442a30 | 1091 | log_err("fio: rdma_listen fail: %m\n"); |
21b8aee8 | 1092 | return 1; |
1093 | } | |
1094 | ||
263775ad LG |
1095 | log_info("fio: waiting for connection\n"); |
1096 | ||
21b8aee8 | 1097 | /* wait for CONNECT_REQUEST */ |
1098 | if (get_next_channel_event | |
1099 | (td, rd->cm_channel, RDMA_CM_EVENT_CONNECT_REQUEST) != 0) { | |
1100 | log_err("fio: wait for RDMA_CM_EVENT_CONNECT_REQUEST\n"); | |
1101 | return 1; | |
1102 | } | |
1103 | ||
1104 | if (fio_rdmaio_setup_qp(td) != 0) | |
1105 | return 1; | |
1106 | ||
1107 | if (fio_rdmaio_setup_control_msg_buffers(td) != 0) | |
1108 | return 1; | |
1109 | ||
1110 | /* post recv buf */ | |
1111 | if (ibv_post_recv(rd->qp, &rd->rq_wr, &bad_wr) != 0) { | |
2a442a30 | 1112 | log_err("fio: ibv_post_recv fail: %m\n"); |
21b8aee8 | 1113 | return 1; |
1114 | } | |
1115 | ||
263775ad | 1116 | td_set_runstate(td, state); |
21b8aee8 | 1117 | return 0; |
1118 | } | |
1119 | ||
38b9354a | 1120 | static int check_set_rlimits(struct thread_data *td) |
21b8aee8 | 1121 | { |
38b9354a | 1122 | #ifdef CONFIG_RLIMIT_MEMLOCK |
21b8aee8 | 1123 | struct rlimit rl; |
1124 | ||
21b8aee8 | 1125 | /* check RLIMIT_MEMLOCK */ |
1126 | if (getrlimit(RLIMIT_MEMLOCK, &rl) != 0) { | |
1127 | log_err("fio: getrlimit fail: %d(%s)\n", | |
1128 | errno, strerror(errno)); | |
1129 | return 1; | |
1130 | } | |
1131 | ||
1132 | /* soft limit */ | |
1133 | if ((rl.rlim_cur != RLIM_INFINITY) | |
1134 | && (rl.rlim_cur < td->orig_buffer_size)) { | |
e07f72d3 BVA |
1135 | log_err("fio: soft RLIMIT_MEMLOCK is: %" PRId64 "\n", |
1136 | rl.rlim_cur); | |
1137 | log_err("fio: total block size is: %zd\n", | |
21b8aee8 | 1138 | td->orig_buffer_size); |
1139 | /* try to set larger RLIMIT_MEMLOCK */ | |
1140 | rl.rlim_cur = rl.rlim_max; | |
1141 | if (setrlimit(RLIMIT_MEMLOCK, &rl) != 0) { | |
1142 | log_err("fio: setrlimit fail: %d(%s)\n", | |
1143 | errno, strerror(errno)); | |
1144 | log_err("fio: you may try enlarge MEMLOCK by root\n"); | |
1145 | log_err("# ulimit -l unlimited\n"); | |
1146 | return 1; | |
1147 | } | |
1148 | } | |
38b9354a JA |
1149 | #endif |
1150 | ||
1151 | return 0; | |
1152 | } | |
1153 | ||
cdf91594 | 1154 | static int compat_options(struct thread_data *td) |
38b9354a | 1155 | { |
cdf91594 LG |
1156 | // The original RDMA engine had an ugly / seperator |
1157 | // on the filename for it's options. This function | |
1158 | // retains backwards compatibility with it.100 | |
38b9354a | 1159 | |
cdf91594 LG |
1160 | struct rdmaio_options *o = td->eo; |
1161 | char *modep, *portp; | |
1162 | char *filename = td->o.filename; | |
38b9354a | 1163 | |
cdf91594 LG |
1164 | if (!filename) |
1165 | return 0; | |
21b8aee8 | 1166 | |
cdf91594 LG |
1167 | portp = strchr(filename, '/'); |
1168 | if (portp == NULL) | |
1169 | return 0; | |
21b8aee8 | 1170 | |
cdf91594 LG |
1171 | *portp = '\0'; |
1172 | portp++; | |
21b8aee8 | 1173 | |
cdf91594 LG |
1174 | o->port = strtol(portp, NULL, 10); |
1175 | if (!o->port || o->port > 65535) | |
21b8aee8 | 1176 | goto bad_host; |
1177 | ||
cdf91594 LG |
1178 | modep = strchr(portp, '/'); |
1179 | if (modep != NULL) { | |
1180 | *modep = '\0'; | |
1181 | modep++; | |
21b8aee8 | 1182 | } |
1183 | ||
21b8aee8 | 1184 | if (modep) { |
1185 | if (!strncmp("rdma_write", modep, strlen(modep)) || | |
1186 | !strncmp("RDMA_WRITE", modep, strlen(modep))) | |
cdf91594 | 1187 | o->verb = FIO_RDMA_MEM_WRITE; |
21b8aee8 | 1188 | else if (!strncmp("rdma_read", modep, strlen(modep)) || |
1189 | !strncmp("RDMA_READ", modep, strlen(modep))) | |
cdf91594 | 1190 | o->verb = FIO_RDMA_MEM_READ; |
21b8aee8 | 1191 | else if (!strncmp("send", modep, strlen(modep)) || |
1192 | !strncmp("SEND", modep, strlen(modep))) | |
cdf91594 | 1193 | o->verb = FIO_RDMA_CHA_SEND; |
21b8aee8 | 1194 | else |
1195 | goto bad_host; | |
1196 | } else | |
cdf91594 LG |
1197 | o->verb = FIO_RDMA_MEM_WRITE; |
1198 | ||
1199 | ||
1200 | return 0; | |
21b8aee8 | 1201 | |
cdf91594 LG |
1202 | bad_host: |
1203 | log_err("fio: bad rdma host/port/protocol: %s\n", td->o.filename); | |
1204 | return 1; | |
1205 | } | |
1206 | ||
1207 | static int fio_rdmaio_init(struct thread_data *td) | |
1208 | { | |
565e784d | 1209 | struct rdmaio_data *rd = td->io_ops_data; |
cdf91594 LG |
1210 | struct rdmaio_options *o = td->eo; |
1211 | unsigned int max_bs; | |
1212 | int ret, i; | |
1213 | ||
1214 | if (td_rw(td)) { | |
1215 | log_err("fio: rdma connections must be read OR write\n"); | |
1216 | return 1; | |
1217 | } | |
1218 | if (td_random(td)) { | |
1219 | log_err("fio: RDMA network IO can't be random\n"); | |
1220 | return 1; | |
1221 | } | |
1222 | ||
1223 | if (compat_options(td)) | |
1224 | return 1; | |
1225 | ||
1226 | if (!o->port) { | |
1227 | log_err("fio: no port has been specified which is required " | |
1228 | "for the rdma engine\n"); | |
1229 | return 1; | |
1230 | } | |
1231 | ||
1232 | if (check_set_rlimits(td)) | |
1233 | return 1; | |
1234 | ||
1235 | rd->rdma_protocol = o->verb; | |
21b8aee8 | 1236 | rd->cq_event_num = 0; |
1237 | ||
1238 | rd->cm_channel = rdma_create_event_channel(); | |
1239 | if (!rd->cm_channel) { | |
2a442a30 | 1240 | log_err("fio: rdma_create_event_channel fail: %m\n"); |
21b8aee8 | 1241 | return 1; |
1242 | } | |
1243 | ||
1244 | ret = rdma_create_id(rd->cm_channel, &rd->cm_id, rd, RDMA_PS_TCP); | |
1245 | if (ret) { | |
2a442a30 | 1246 | log_err("fio: rdma_create_id fail: %m\n"); |
21b8aee8 | 1247 | return 1; |
1248 | } | |
1249 | ||
1250 | if ((rd->rdma_protocol == FIO_RDMA_MEM_WRITE) || | |
1251 | (rd->rdma_protocol == FIO_RDMA_MEM_READ)) { | |
1252 | rd->rmt_us = | |
76cc5224 | 1253 | malloc(FIO_RDMA_MAX_IO_DEPTH * sizeof(struct remote_u)); |
21b8aee8 | 1254 | memset(rd->rmt_us, 0, |
76cc5224 | 1255 | FIO_RDMA_MAX_IO_DEPTH * sizeof(struct remote_u)); |
21b8aee8 | 1256 | rd->rmt_nr = 0; |
1257 | } | |
1258 | ||
1259 | rd->io_us_queued = malloc(td->o.iodepth * sizeof(struct io_u *)); | |
1260 | memset(rd->io_us_queued, 0, td->o.iodepth * sizeof(struct io_u *)); | |
1261 | rd->io_u_queued_nr = 0; | |
1262 | ||
1263 | rd->io_us_flight = malloc(td->o.iodepth * sizeof(struct io_u *)); | |
1264 | memset(rd->io_us_flight, 0, td->o.iodepth * sizeof(struct io_u *)); | |
1265 | rd->io_u_flight_nr = 0; | |
1266 | ||
1267 | rd->io_us_completed = malloc(td->o.iodepth * sizeof(struct io_u *)); | |
1268 | memset(rd->io_us_completed, 0, td->o.iodepth * sizeof(struct io_u *)); | |
1269 | rd->io_u_completed_nr = 0; | |
1270 | ||
1271 | if (td_read(td)) { /* READ as the server */ | |
1272 | rd->is_client = 0; | |
263775ad | 1273 | td->flags |= TD_F_NO_PROGRESS; |
21b8aee8 | 1274 | /* server rd->rdma_buf_len will be setup after got request */ |
cdf91594 | 1275 | ret = fio_rdmaio_setup_listen(td, o->port); |
21b8aee8 | 1276 | } else { /* WRITE as the client */ |
1277 | rd->is_client = 1; | |
cdf91594 | 1278 | ret = fio_rdmaio_setup_connect(td, td->o.filename, o->port); |
21b8aee8 | 1279 | } |
1280 | ||
21b8aee8 | 1281 | max_bs = max(td->o.max_bs[DDIR_READ], td->o.max_bs[DDIR_WRITE]); |
c4421263 LG |
1282 | rd->send_buf.max_bs = htonl(max_bs); |
1283 | ||
21b8aee8 | 1284 | /* register each io_u in the free list */ |
954cd73a YR |
1285 | for (i = 0; i < td->io_u_freelist.nr; i++) { |
1286 | struct io_u *io_u = td->io_u_freelist.io_us[i]; | |
21b8aee8 | 1287 | |
1288 | io_u->engine_data = malloc(sizeof(struct rdma_io_u_data)); | |
1289 | memset(io_u->engine_data, 0, sizeof(struct rdma_io_u_data)); | |
1290 | ((struct rdma_io_u_data *)io_u->engine_data)->wr_id = i; | |
1291 | ||
1292 | io_u->mr = ibv_reg_mr(rd->pd, io_u->buf, max_bs, | |
1293 | IBV_ACCESS_LOCAL_WRITE | | |
1294 | IBV_ACCESS_REMOTE_READ | | |
1295 | IBV_ACCESS_REMOTE_WRITE); | |
1296 | if (io_u->mr == NULL) { | |
2a442a30 | 1297 | log_err("fio: ibv_reg_mr io_u failed: %m\n"); |
21b8aee8 | 1298 | return 1; |
1299 | } | |
1300 | ||
1301 | rd->send_buf.rmt_us[i].buf = | |
b747af64 | 1302 | cpu_to_be64((uint64_t) (unsigned long)io_u->buf); |
21b8aee8 | 1303 | rd->send_buf.rmt_us[i].rkey = htonl(io_u->mr->rkey); |
1304 | rd->send_buf.rmt_us[i].size = htonl(max_bs); | |
1305 | ||
222757cc JA |
1306 | #if 0 |
1307 | log_info("fio: Send rkey %x addr %" PRIx64 " len %d to client\n", io_u->mr->rkey, io_u->buf, max_bs); */ | |
1308 | #endif | |
21b8aee8 | 1309 | } |
1310 | ||
1311 | rd->send_buf.nr = htonl(i); | |
1312 | ||
1313 | return ret; | |
21b8aee8 | 1314 | } |
1315 | ||
1316 | static void fio_rdmaio_cleanup(struct thread_data *td) | |
1317 | { | |
565e784d | 1318 | struct rdmaio_data *rd = td->io_ops_data; |
21b8aee8 | 1319 | |
222757cc | 1320 | if (rd) |
21b8aee8 | 1321 | free(rd); |
21b8aee8 | 1322 | } |
1323 | ||
1324 | static int fio_rdmaio_setup(struct thread_data *td) | |
1325 | { | |
1326 | struct rdmaio_data *rd; | |
1327 | ||
cdf91594 LG |
1328 | if (!td->files_index) { |
1329 | add_file(td, td->o.filename ?: "rdma", 0, 0); | |
1330 | td->o.nr_files = td->o.nr_files ?: 1; | |
1331 | td->o.open_files++; | |
1332 | } | |
1333 | ||
565e784d | 1334 | if (!td->io_ops_data) { |
222757cc | 1335 | rd = malloc(sizeof(*rd)); |
21b8aee8 | 1336 | |
1337 | memset(rd, 0, sizeof(*rd)); | |
ec4dde59 | 1338 | init_rand_seed(&rd->rand_state, (unsigned int) GOLDEN_RATIO_PRIME, 0); |
565e784d | 1339 | td->io_ops_data = rd; |
21b8aee8 | 1340 | } |
1341 | ||
1342 | return 0; | |
1343 | } | |
1344 | ||
1345 | static struct ioengine_ops ioengine_rw = { | |
cdf91594 LG |
1346 | .name = "rdma", |
1347 | .version = FIO_IOOPS_VERSION, | |
1348 | .setup = fio_rdmaio_setup, | |
1349 | .init = fio_rdmaio_init, | |
1350 | .prep = fio_rdmaio_prep, | |
1351 | .queue = fio_rdmaio_queue, | |
1352 | .commit = fio_rdmaio_commit, | |
1353 | .getevents = fio_rdmaio_getevents, | |
1354 | .event = fio_rdmaio_event, | |
1355 | .cleanup = fio_rdmaio_cleanup, | |
1356 | .open_file = fio_rdmaio_open_file, | |
1357 | .close_file = fio_rdmaio_close_file, | |
1358 | .flags = FIO_DISKLESSIO | FIO_UNIDIR | FIO_PIPEIO, | |
1359 | .options = options, | |
1360 | .option_struct_size = sizeof(struct rdmaio_options), | |
21b8aee8 | 1361 | }; |
1362 | ||
21b8aee8 | 1363 | static void fio_init fio_rdmaio_register(void) |
1364 | { | |
1365 | register_ioengine(&ioengine_rw); | |
1366 | } | |
1367 | ||
1368 | static void fio_exit fio_rdmaio_unregister(void) | |
1369 | { | |
1370 | unregister_ioengine(&ioengine_rw); | |
1371 | } |