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> |
47 | #include <infiniband/arch.h> | |
48 | ||
7d7803fa | 49 | #define FIO_RDMA_MAX_IO_DEPTH 512 |
21b8aee8 | 50 | |
51 | enum rdma_io_mode { | |
52 | FIO_RDMA_UNKNOWN = 0, | |
53 | FIO_RDMA_MEM_WRITE, | |
54 | FIO_RDMA_MEM_READ, | |
55 | FIO_RDMA_CHA_SEND, | |
56 | FIO_RDMA_CHA_RECV | |
57 | }; | |
58 | ||
cdf91594 LG |
59 | struct rdmaio_options { |
60 | struct thread_data *td; | |
61 | unsigned int port; | |
62 | enum rdma_io_mode verb; | |
63 | }; | |
64 | ||
65 | static int str_hostname_cb(void *data, const char *input) | |
66 | { | |
67 | struct rdmaio_options *o = data; | |
68 | ||
69 | if (o->td->o.filename) | |
70 | free(o->td->o.filename); | |
71 | o->td->o.filename = strdup(input); | |
72 | return 0; | |
73 | } | |
74 | ||
75 | static struct fio_option options[] = { | |
76 | { | |
77 | .name = "hostname", | |
78 | .lname = "rdma engine hostname", | |
79 | .type = FIO_OPT_STR_STORE, | |
80 | .cb = str_hostname_cb, | |
81 | .help = "Hostname for RDMA IO engine", | |
82 | .category = FIO_OPT_C_ENGINE, | |
83 | .group = FIO_OPT_G_RDMA, | |
84 | }, | |
85 | { | |
86 | .name = "port", | |
87 | .lname = "rdma engine port", | |
88 | .type = FIO_OPT_INT, | |
89 | .off1 = offsetof(struct rdmaio_options, port), | |
90 | .minval = 1, | |
91 | .maxval = 65535, | |
92 | .help = "Port to use for RDMA connections", | |
93 | .category = FIO_OPT_C_ENGINE, | |
94 | .group = FIO_OPT_G_RDMA, | |
95 | }, | |
96 | { | |
97 | .name = "verb", | |
98 | .lname = "RDMA engine verb", | |
99 | .alias = "proto", | |
100 | .type = FIO_OPT_STR, | |
101 | .off1 = offsetof(struct rdmaio_options, verb), | |
102 | .help = "RDMA engine verb", | |
103 | .def = "write", | |
104 | .posval = { | |
105 | { .ival = "write", | |
106 | .oval = FIO_RDMA_MEM_WRITE, | |
107 | .help = "Memory Write", | |
108 | }, | |
109 | { .ival = "read", | |
110 | .oval = FIO_RDMA_MEM_READ, | |
111 | .help = "Memory Read", | |
112 | }, | |
113 | { .ival = "send", | |
114 | .oval = FIO_RDMA_CHA_SEND, | |
115 | .help = "Posted Send", | |
116 | }, | |
117 | { .ival = "recv", | |
118 | .oval = FIO_RDMA_CHA_RECV, | |
ee386b78 | 119 | .help = "Posted Receive", |
cdf91594 LG |
120 | }, |
121 | }, | |
122 | .category = FIO_OPT_C_ENGINE, | |
123 | .group = FIO_OPT_G_RDMA, | |
124 | }, | |
125 | { | |
126 | .name = NULL, | |
127 | }, | |
128 | }; | |
129 | ||
21b8aee8 | 130 | struct remote_u { |
131 | uint64_t buf; | |
132 | uint32_t rkey; | |
133 | uint32_t size; | |
134 | }; | |
135 | ||
136 | struct rdma_info_blk { | |
137 | uint32_t mode; /* channel semantic or memory semantic */ | |
138 | uint32_t nr; /* client: io depth | |
139 | server: number of records for memory semantic | |
140 | */ | |
c4421263 | 141 | uint32_t max_bs; /* maximum block size */ |
76cc5224 | 142 | struct remote_u rmt_us[FIO_RDMA_MAX_IO_DEPTH]; |
21b8aee8 | 143 | }; |
144 | ||
145 | struct rdma_io_u_data { | |
146 | uint64_t wr_id; | |
147 | struct ibv_send_wr sq_wr; | |
148 | struct ibv_recv_wr rq_wr; | |
149 | struct ibv_sge rdma_sgl; | |
150 | }; | |
151 | ||
152 | struct rdmaio_data { | |
153 | int is_client; | |
154 | enum rdma_io_mode rdma_protocol; | |
155 | char host[64]; | |
156 | struct sockaddr_in addr; | |
157 | ||
158 | struct ibv_recv_wr rq_wr; | |
159 | struct ibv_sge recv_sgl; | |
160 | struct rdma_info_blk recv_buf; | |
161 | struct ibv_mr *recv_mr; | |
162 | ||
163 | struct ibv_send_wr sq_wr; | |
164 | struct ibv_sge send_sgl; | |
165 | struct rdma_info_blk send_buf; | |
166 | struct ibv_mr *send_mr; | |
167 | ||
168 | struct ibv_comp_channel *channel; | |
169 | struct ibv_cq *cq; | |
170 | struct ibv_pd *pd; | |
171 | struct ibv_qp *qp; | |
172 | ||
173 | pthread_t cmthread; | |
174 | struct rdma_event_channel *cm_channel; | |
175 | struct rdma_cm_id *cm_id; | |
176 | struct rdma_cm_id *child_cm_id; | |
177 | ||
178 | int cq_event_num; | |
179 | ||
180 | struct remote_u *rmt_us; | |
181 | int rmt_nr; | |
182 | struct io_u **io_us_queued; | |
183 | int io_u_queued_nr; | |
184 | struct io_u **io_us_flight; | |
185 | int io_u_flight_nr; | |
186 | struct io_u **io_us_completed; | |
187 | int io_u_completed_nr; | |
ea6209ad JA |
188 | |
189 | struct frand_state rand_state; | |
21b8aee8 | 190 | }; |
191 | ||
192 | static int client_recv(struct thread_data *td, struct ibv_wc *wc) | |
193 | { | |
565e784d | 194 | struct rdmaio_data *rd = td->io_ops_data; |
c4421263 | 195 | unsigned int max_bs; |
21b8aee8 | 196 | |
197 | if (wc->byte_len != sizeof(rd->recv_buf)) { | |
b6cf38f0 | 198 | log_err("Received bogus data, size %d\n", wc->byte_len); |
21b8aee8 | 199 | return 1; |
200 | } | |
201 | ||
c4421263 LG |
202 | max_bs = max(td->o.max_bs[DDIR_READ], td->o.max_bs[DDIR_WRITE]); |
203 | if (max_bs > ntohl(rd->recv_buf.max_bs)) { | |
204 | log_err("fio: Server's block size (%d) must be greater than or " | |
205 | "equal to the client's block size (%d)!\n", | |
206 | ntohl(rd->recv_buf.max_bs), max_bs); | |
207 | return 1; | |
208 | } | |
209 | ||
21b8aee8 | 210 | /* store mr info for MEMORY semantic */ |
211 | if ((rd->rdma_protocol == FIO_RDMA_MEM_WRITE) || | |
212 | (rd->rdma_protocol == FIO_RDMA_MEM_READ)) { | |
213 | /* struct flist_head *entry; */ | |
214 | int i = 0; | |
215 | ||
216 | rd->rmt_nr = ntohl(rd->recv_buf.nr); | |
217 | ||
218 | for (i = 0; i < rd->rmt_nr; i++) { | |
219 | rd->rmt_us[i].buf = ntohll(rd->recv_buf.rmt_us[i].buf); | |
220 | rd->rmt_us[i].rkey = ntohl(rd->recv_buf.rmt_us[i].rkey); | |
221 | rd->rmt_us[i].size = ntohl(rd->recv_buf.rmt_us[i].size); | |
222 | ||
223 | dprint(FD_IO, | |
224 | "fio: Received rkey %x addr %" PRIx64 | |
225 | " len %d from peer\n", rd->rmt_us[i].rkey, | |
226 | rd->rmt_us[i].buf, rd->rmt_us[i].size); | |
227 | } | |
228 | } | |
229 | ||
230 | return 0; | |
231 | } | |
232 | ||
233 | static int server_recv(struct thread_data *td, struct ibv_wc *wc) | |
234 | { | |
565e784d | 235 | struct rdmaio_data *rd = td->io_ops_data; |
c4421263 | 236 | unsigned int max_bs; |
21b8aee8 | 237 | |
76cc5224 | 238 | if (wc->wr_id == FIO_RDMA_MAX_IO_DEPTH) { |
21b8aee8 | 239 | rd->rdma_protocol = ntohl(rd->recv_buf.mode); |
240 | ||
241 | /* CHANNEL semantic, do nothing */ | |
242 | if (rd->rdma_protocol == FIO_RDMA_CHA_SEND) | |
243 | rd->rdma_protocol = FIO_RDMA_CHA_RECV; | |
c4421263 LG |
244 | |
245 | max_bs = max(td->o.max_bs[DDIR_READ], td->o.max_bs[DDIR_WRITE]); | |
246 | if (max_bs < ntohl(rd->recv_buf.max_bs)) { | |
247 | log_err("fio: Server's block size (%d) must be greater than or " | |
248 | "equal to the client's block size (%d)!\n", | |
249 | ntohl(rd->recv_buf.max_bs), max_bs); | |
250 | return 1; | |
251 | } | |
252 | ||
21b8aee8 | 253 | } |
254 | ||
255 | return 0; | |
256 | } | |
257 | ||
258 | static int cq_event_handler(struct thread_data *td, enum ibv_wc_opcode opcode) | |
259 | { | |
565e784d | 260 | struct rdmaio_data *rd = td->io_ops_data; |
21b8aee8 | 261 | struct ibv_wc wc; |
262 | struct rdma_io_u_data *r_io_u_d; | |
263 | int ret; | |
264 | int compevnum = 0; | |
265 | int i; | |
266 | ||
267 | while ((ret = ibv_poll_cq(rd->cq, 1, &wc)) == 1) { | |
268 | ret = 0; | |
269 | compevnum++; | |
270 | ||
271 | if (wc.status) { | |
272 | log_err("fio: cq completion status %d(%s)\n", | |
273 | wc.status, ibv_wc_status_str(wc.status)); | |
274 | return -1; | |
275 | } | |
276 | ||
277 | switch (wc.opcode) { | |
278 | ||
279 | case IBV_WC_RECV: | |
280 | if (rd->is_client == 1) | |
c4421263 | 281 | ret = client_recv(td, &wc); |
21b8aee8 | 282 | else |
c4421263 LG |
283 | ret = server_recv(td, &wc); |
284 | ||
285 | if (ret) | |
286 | return -1; | |
21b8aee8 | 287 | |
76cc5224 | 288 | if (wc.wr_id == FIO_RDMA_MAX_IO_DEPTH) |
21b8aee8 | 289 | break; |
290 | ||
291 | for (i = 0; i < rd->io_u_flight_nr; i++) { | |
292 | r_io_u_d = rd->io_us_flight[i]->engine_data; | |
293 | ||
294 | if (wc.wr_id == r_io_u_d->rq_wr.wr_id) { | |
295 | rd->io_us_flight[i]->resid = | |
296 | rd->io_us_flight[i]->buflen | |
297 | - wc.byte_len; | |
298 | ||
299 | rd->io_us_flight[i]->error = 0; | |
300 | ||
301 | rd->io_us_completed[rd-> | |
302 | io_u_completed_nr] | |
303 | = rd->io_us_flight[i]; | |
304 | rd->io_u_completed_nr++; | |
305 | break; | |
306 | } | |
307 | } | |
308 | if (i == rd->io_u_flight_nr) | |
e07f72d3 | 309 | log_err("fio: recv wr %" PRId64 " not found\n", |
21b8aee8 | 310 | wc.wr_id); |
311 | else { | |
312 | /* put the last one into middle of the list */ | |
313 | rd->io_us_flight[i] = | |
314 | rd->io_us_flight[rd->io_u_flight_nr - 1]; | |
315 | rd->io_u_flight_nr--; | |
316 | } | |
317 | ||
318 | break; | |
319 | ||
320 | case IBV_WC_SEND: | |
321 | case IBV_WC_RDMA_WRITE: | |
322 | case IBV_WC_RDMA_READ: | |
76cc5224 | 323 | if (wc.wr_id == FIO_RDMA_MAX_IO_DEPTH) |
21b8aee8 | 324 | break; |
325 | ||
326 | for (i = 0; i < rd->io_u_flight_nr; i++) { | |
327 | r_io_u_d = rd->io_us_flight[i]->engine_data; | |
328 | ||
329 | if (wc.wr_id == r_io_u_d->sq_wr.wr_id) { | |
330 | rd->io_us_completed[rd-> | |
331 | io_u_completed_nr] | |
332 | = rd->io_us_flight[i]; | |
333 | rd->io_u_completed_nr++; | |
334 | break; | |
335 | } | |
336 | } | |
337 | if (i == rd->io_u_flight_nr) | |
e07f72d3 | 338 | log_err("fio: send wr %" PRId64 " not found\n", |
21b8aee8 | 339 | wc.wr_id); |
340 | else { | |
341 | /* put the last one into middle of the list */ | |
342 | rd->io_us_flight[i] = | |
343 | rd->io_us_flight[rd->io_u_flight_nr - 1]; | |
344 | rd->io_u_flight_nr--; | |
345 | } | |
346 | ||
347 | break; | |
348 | ||
349 | default: | |
350 | log_info("fio: unknown completion event %d\n", | |
351 | wc.opcode); | |
352 | return -1; | |
353 | } | |
354 | rd->cq_event_num++; | |
355 | } | |
c4421263 | 356 | |
21b8aee8 | 357 | if (ret) { |
358 | log_err("fio: poll error %d\n", ret); | |
359 | return 1; | |
360 | } | |
361 | ||
362 | return compevnum; | |
363 | } | |
364 | ||
365 | /* | |
366 | * Return -1 for error and 'nr events' for a positive number | |
367 | * of events | |
368 | */ | |
369 | static int rdma_poll_wait(struct thread_data *td, enum ibv_wc_opcode opcode) | |
370 | { | |
565e784d | 371 | struct rdmaio_data *rd = td->io_ops_data; |
21b8aee8 | 372 | struct ibv_cq *ev_cq; |
373 | void *ev_ctx; | |
374 | int ret; | |
375 | ||
376 | if (rd->cq_event_num > 0) { /* previous left */ | |
377 | rd->cq_event_num--; | |
378 | return 0; | |
379 | } | |
380 | ||
381 | again: | |
382 | if (ibv_get_cq_event(rd->channel, &ev_cq, &ev_ctx) != 0) { | |
383 | log_err("fio: Failed to get cq event!\n"); | |
384 | return -1; | |
385 | } | |
386 | if (ev_cq != rd->cq) { | |
387 | log_err("fio: Unknown CQ!\n"); | |
388 | return -1; | |
389 | } | |
390 | if (ibv_req_notify_cq(rd->cq, 0) != 0) { | |
391 | log_err("fio: Failed to set notify!\n"); | |
392 | return -1; | |
393 | } | |
394 | ||
395 | ret = cq_event_handler(td, opcode); | |
c4421263 | 396 | if (ret == 0) |
21b8aee8 | 397 | goto again; |
398 | ||
399 | ibv_ack_cq_events(rd->cq, ret); | |
400 | ||
401 | rd->cq_event_num--; | |
402 | ||
403 | return ret; | |
404 | } | |
405 | ||
406 | static int fio_rdmaio_setup_qp(struct thread_data *td) | |
407 | { | |
565e784d | 408 | struct rdmaio_data *rd = td->io_ops_data; |
21b8aee8 | 409 | struct ibv_qp_init_attr init_attr; |
410 | int qp_depth = td->o.iodepth * 2; /* 2 times of io depth */ | |
411 | ||
412 | if (rd->is_client == 0) | |
413 | rd->pd = ibv_alloc_pd(rd->child_cm_id->verbs); | |
414 | else | |
415 | rd->pd = ibv_alloc_pd(rd->cm_id->verbs); | |
222757cc | 416 | |
21b8aee8 | 417 | if (rd->pd == NULL) { |
2a442a30 | 418 | log_err("fio: ibv_alloc_pd fail: %m\n"); |
21b8aee8 | 419 | return 1; |
420 | } | |
421 | ||
422 | if (rd->is_client == 0) | |
423 | rd->channel = ibv_create_comp_channel(rd->child_cm_id->verbs); | |
424 | else | |
425 | rd->channel = ibv_create_comp_channel(rd->cm_id->verbs); | |
426 | if (rd->channel == NULL) { | |
2a442a30 | 427 | log_err("fio: ibv_create_comp_channel fail: %m\n"); |
21b8aee8 | 428 | goto err1; |
429 | } | |
430 | ||
431 | if (qp_depth < 16) | |
432 | qp_depth = 16; | |
433 | ||
434 | if (rd->is_client == 0) | |
435 | rd->cq = ibv_create_cq(rd->child_cm_id->verbs, | |
436 | qp_depth, rd, rd->channel, 0); | |
437 | else | |
438 | rd->cq = ibv_create_cq(rd->cm_id->verbs, | |
439 | qp_depth, rd, rd->channel, 0); | |
440 | if (rd->cq == NULL) { | |
2a442a30 | 441 | log_err("fio: ibv_create_cq failed: %m\n"); |
21b8aee8 | 442 | goto err2; |
443 | } | |
444 | ||
445 | if (ibv_req_notify_cq(rd->cq, 0) != 0) { | |
2a442a30 | 446 | log_err("fio: ibv_req_notify_cq failed: %m\n"); |
21b8aee8 | 447 | goto err3; |
448 | } | |
449 | ||
450 | /* create queue pair */ | |
451 | memset(&init_attr, 0, sizeof(init_attr)); | |
452 | init_attr.cap.max_send_wr = qp_depth; | |
453 | init_attr.cap.max_recv_wr = qp_depth; | |
454 | init_attr.cap.max_recv_sge = 1; | |
455 | init_attr.cap.max_send_sge = 1; | |
456 | init_attr.qp_type = IBV_QPT_RC; | |
457 | init_attr.send_cq = rd->cq; | |
458 | init_attr.recv_cq = rd->cq; | |
459 | ||
460 | if (rd->is_client == 0) { | |
461 | if (rdma_create_qp(rd->child_cm_id, rd->pd, &init_attr) != 0) { | |
2a442a30 | 462 | log_err("fio: rdma_create_qp failed: %m\n"); |
21b8aee8 | 463 | goto err3; |
464 | } | |
465 | rd->qp = rd->child_cm_id->qp; | |
466 | } else { | |
467 | if (rdma_create_qp(rd->cm_id, rd->pd, &init_attr) != 0) { | |
2a442a30 | 468 | log_err("fio: rdma_create_qp failed: %m\n"); |
21b8aee8 | 469 | goto err3; |
470 | } | |
471 | rd->qp = rd->cm_id->qp; | |
472 | } | |
473 | ||
474 | return 0; | |
475 | ||
476 | err3: | |
477 | ibv_destroy_cq(rd->cq); | |
478 | err2: | |
479 | ibv_destroy_comp_channel(rd->channel); | |
480 | err1: | |
481 | ibv_dealloc_pd(rd->pd); | |
482 | ||
483 | return 1; | |
484 | } | |
485 | ||
486 | static int fio_rdmaio_setup_control_msg_buffers(struct thread_data *td) | |
487 | { | |
565e784d | 488 | struct rdmaio_data *rd = td->io_ops_data; |
21b8aee8 | 489 | |
490 | rd->recv_mr = ibv_reg_mr(rd->pd, &rd->recv_buf, sizeof(rd->recv_buf), | |
491 | IBV_ACCESS_LOCAL_WRITE); | |
492 | if (rd->recv_mr == NULL) { | |
2a442a30 | 493 | log_err("fio: recv_buf reg_mr failed: %m\n"); |
21b8aee8 | 494 | return 1; |
495 | } | |
496 | ||
497 | rd->send_mr = ibv_reg_mr(rd->pd, &rd->send_buf, sizeof(rd->send_buf), | |
498 | 0); | |
499 | if (rd->send_mr == NULL) { | |
2a442a30 | 500 | log_err("fio: send_buf reg_mr failed: %m\n"); |
21b8aee8 | 501 | ibv_dereg_mr(rd->recv_mr); |
502 | return 1; | |
503 | } | |
504 | ||
505 | /* setup work request */ | |
506 | /* recv wq */ | |
507 | rd->recv_sgl.addr = (uint64_t) (unsigned long)&rd->recv_buf; | |
222757cc | 508 | rd->recv_sgl.length = sizeof(rd->recv_buf); |
21b8aee8 | 509 | rd->recv_sgl.lkey = rd->recv_mr->lkey; |
510 | rd->rq_wr.sg_list = &rd->recv_sgl; | |
511 | rd->rq_wr.num_sge = 1; | |
76cc5224 | 512 | rd->rq_wr.wr_id = FIO_RDMA_MAX_IO_DEPTH; |
21b8aee8 | 513 | |
514 | /* send wq */ | |
515 | rd->send_sgl.addr = (uint64_t) (unsigned long)&rd->send_buf; | |
222757cc | 516 | rd->send_sgl.length = sizeof(rd->send_buf); |
21b8aee8 | 517 | rd->send_sgl.lkey = rd->send_mr->lkey; |
518 | ||
519 | rd->sq_wr.opcode = IBV_WR_SEND; | |
520 | rd->sq_wr.send_flags = IBV_SEND_SIGNALED; | |
521 | rd->sq_wr.sg_list = &rd->send_sgl; | |
522 | rd->sq_wr.num_sge = 1; | |
76cc5224 | 523 | rd->sq_wr.wr_id = FIO_RDMA_MAX_IO_DEPTH; |
21b8aee8 | 524 | |
525 | return 0; | |
526 | } | |
527 | ||
528 | static int get_next_channel_event(struct thread_data *td, | |
529 | struct rdma_event_channel *channel, | |
530 | enum rdma_cm_event_type wait_event) | |
531 | { | |
565e784d | 532 | struct rdmaio_data *rd = td->io_ops_data; |
21b8aee8 | 533 | struct rdma_cm_event *event; |
222757cc | 534 | int ret; |
21b8aee8 | 535 | |
536 | ret = rdma_get_cm_event(channel, &event); | |
537 | if (ret) { | |
222757cc | 538 | log_err("fio: rdma_get_cm_event: %d\n", ret); |
21b8aee8 | 539 | return 1; |
540 | } | |
541 | ||
542 | if (event->event != wait_event) { | |
543 | log_err("fio: event is %s instead of %s\n", | |
544 | rdma_event_str(event->event), | |
545 | rdma_event_str(wait_event)); | |
546 | return 1; | |
547 | } | |
548 | ||
549 | switch (event->event) { | |
550 | case RDMA_CM_EVENT_CONNECT_REQUEST: | |
551 | rd->child_cm_id = event->id; | |
552 | break; | |
553 | default: | |
554 | break; | |
555 | } | |
556 | ||
557 | rdma_ack_cm_event(event); | |
558 | ||
559 | return 0; | |
560 | } | |
561 | ||
562 | static int fio_rdmaio_prep(struct thread_data *td, struct io_u *io_u) | |
563 | { | |
565e784d | 564 | struct rdmaio_data *rd = td->io_ops_data; |
21b8aee8 | 565 | struct rdma_io_u_data *r_io_u_d; |
566 | ||
567 | r_io_u_d = io_u->engine_data; | |
568 | ||
569 | switch (rd->rdma_protocol) { | |
570 | case FIO_RDMA_MEM_WRITE: | |
571 | case FIO_RDMA_MEM_READ: | |
572 | r_io_u_d->rdma_sgl.addr = (uint64_t) (unsigned long)io_u->buf; | |
573 | r_io_u_d->rdma_sgl.lkey = io_u->mr->lkey; | |
574 | r_io_u_d->sq_wr.wr_id = r_io_u_d->wr_id; | |
575 | r_io_u_d->sq_wr.send_flags = IBV_SEND_SIGNALED; | |
576 | r_io_u_d->sq_wr.sg_list = &r_io_u_d->rdma_sgl; | |
577 | r_io_u_d->sq_wr.num_sge = 1; | |
578 | break; | |
579 | case FIO_RDMA_CHA_SEND: | |
580 | r_io_u_d->rdma_sgl.addr = (uint64_t) (unsigned long)io_u->buf; | |
581 | r_io_u_d->rdma_sgl.lkey = io_u->mr->lkey; | |
582 | r_io_u_d->rdma_sgl.length = io_u->buflen; | |
583 | r_io_u_d->sq_wr.wr_id = r_io_u_d->wr_id; | |
584 | r_io_u_d->sq_wr.opcode = IBV_WR_SEND; | |
585 | r_io_u_d->sq_wr.send_flags = IBV_SEND_SIGNALED; | |
586 | r_io_u_d->sq_wr.sg_list = &r_io_u_d->rdma_sgl; | |
587 | r_io_u_d->sq_wr.num_sge = 1; | |
588 | break; | |
589 | case FIO_RDMA_CHA_RECV: | |
590 | r_io_u_d->rdma_sgl.addr = (uint64_t) (unsigned long)io_u->buf; | |
591 | r_io_u_d->rdma_sgl.lkey = io_u->mr->lkey; | |
592 | r_io_u_d->rdma_sgl.length = io_u->buflen; | |
593 | r_io_u_d->rq_wr.wr_id = r_io_u_d->wr_id; | |
594 | r_io_u_d->rq_wr.sg_list = &r_io_u_d->rdma_sgl; | |
595 | r_io_u_d->rq_wr.num_sge = 1; | |
596 | break; | |
597 | default: | |
598 | log_err("fio: unknown rdma protocol - %d\n", rd->rdma_protocol); | |
599 | break; | |
600 | } | |
601 | ||
602 | return 0; | |
603 | } | |
604 | ||
605 | static struct io_u *fio_rdmaio_event(struct thread_data *td, int event) | |
606 | { | |
565e784d | 607 | struct rdmaio_data *rd = td->io_ops_data; |
21b8aee8 | 608 | struct io_u *io_u; |
609 | int i; | |
610 | ||
611 | io_u = rd->io_us_completed[0]; | |
222757cc | 612 | for (i = 0; i < rd->io_u_completed_nr - 1; i++) |
21b8aee8 | 613 | rd->io_us_completed[i] = rd->io_us_completed[i + 1]; |
222757cc | 614 | |
21b8aee8 | 615 | rd->io_u_completed_nr--; |
616 | ||
617 | dprint_io_u(io_u, "fio_rdmaio_event"); | |
618 | ||
619 | return io_u; | |
620 | } | |
621 | ||
622 | static int fio_rdmaio_getevents(struct thread_data *td, unsigned int min, | |
1f440ece | 623 | unsigned int max, const struct timespec *t) |
21b8aee8 | 624 | { |
565e784d | 625 | struct rdmaio_data *rd = td->io_ops_data; |
21b8aee8 | 626 | enum ibv_wc_opcode comp_opcode; |
21b8aee8 | 627 | struct ibv_cq *ev_cq; |
628 | void *ev_ctx; | |
222757cc | 629 | int ret, r = 0; |
954cd73a | 630 | comp_opcode = IBV_WC_RDMA_WRITE; |
21b8aee8 | 631 | |
632 | switch (rd->rdma_protocol) { | |
633 | case FIO_RDMA_MEM_WRITE: | |
634 | comp_opcode = IBV_WC_RDMA_WRITE; | |
635 | break; | |
636 | case FIO_RDMA_MEM_READ: | |
637 | comp_opcode = IBV_WC_RDMA_READ; | |
638 | break; | |
639 | case FIO_RDMA_CHA_SEND: | |
640 | comp_opcode = IBV_WC_SEND; | |
641 | break; | |
642 | case FIO_RDMA_CHA_RECV: | |
643 | comp_opcode = IBV_WC_RECV; | |
644 | break; | |
645 | default: | |
646 | log_err("fio: unknown rdma protocol - %d\n", rd->rdma_protocol); | |
647 | break; | |
648 | } | |
649 | ||
650 | if (rd->cq_event_num > 0) { /* previous left */ | |
651 | rd->cq_event_num--; | |
652 | return 0; | |
653 | } | |
654 | ||
655 | again: | |
656 | if (ibv_get_cq_event(rd->channel, &ev_cq, &ev_ctx) != 0) { | |
657 | log_err("fio: Failed to get cq event!\n"); | |
658 | return -1; | |
659 | } | |
660 | if (ev_cq != rd->cq) { | |
661 | log_err("fio: Unknown CQ!\n"); | |
662 | return -1; | |
663 | } | |
664 | if (ibv_req_notify_cq(rd->cq, 0) != 0) { | |
665 | log_err("fio: Failed to set notify!\n"); | |
666 | return -1; | |
667 | } | |
668 | ||
669 | ret = cq_event_handler(td, comp_opcode); | |
670 | if (ret < 1) | |
671 | goto again; | |
672 | ||
673 | ibv_ack_cq_events(rd->cq, ret); | |
674 | ||
675 | r += ret; | |
676 | if (r < min) | |
677 | goto again; | |
678 | ||
679 | rd->cq_event_num -= r; | |
680 | ||
681 | return r; | |
682 | } | |
683 | ||
684 | static int fio_rdmaio_send(struct thread_data *td, struct io_u **io_us, | |
685 | unsigned int nr) | |
686 | { | |
565e784d | 687 | struct rdmaio_data *rd = td->io_ops_data; |
21b8aee8 | 688 | struct ibv_send_wr *bad_wr; |
e07f72d3 | 689 | #if 0 |
21b8aee8 | 690 | enum ibv_wc_opcode comp_opcode; |
691 | comp_opcode = IBV_WC_RDMA_WRITE; | |
e07f72d3 | 692 | #endif |
7d7803fa YR |
693 | int i; |
694 | long index; | |
21b8aee8 | 695 | struct rdma_io_u_data *r_io_u_d; |
696 | ||
697 | r_io_u_d = NULL; | |
698 | ||
699 | for (i = 0; i < nr; i++) { | |
700 | /* RDMA_WRITE or RDMA_READ */ | |
701 | switch (rd->rdma_protocol) { | |
702 | case FIO_RDMA_MEM_WRITE: | |
703 | /* compose work request */ | |
704 | r_io_u_d = io_us[i]->engine_data; | |
222757cc | 705 | index = __rand(&rd->rand_state) % rd->rmt_nr; |
21b8aee8 | 706 | r_io_u_d->sq_wr.opcode = IBV_WR_RDMA_WRITE; |
707 | r_io_u_d->sq_wr.wr.rdma.rkey = rd->rmt_us[index].rkey; | |
b6cf38f0 YR |
708 | r_io_u_d->sq_wr.wr.rdma.remote_addr = \ |
709 | rd->rmt_us[index].buf; | |
21b8aee8 | 710 | r_io_u_d->sq_wr.sg_list->length = io_us[i]->buflen; |
711 | break; | |
712 | case FIO_RDMA_MEM_READ: | |
713 | /* compose work request */ | |
714 | r_io_u_d = io_us[i]->engine_data; | |
222757cc | 715 | index = __rand(&rd->rand_state) % rd->rmt_nr; |
21b8aee8 | 716 | r_io_u_d->sq_wr.opcode = IBV_WR_RDMA_READ; |
717 | r_io_u_d->sq_wr.wr.rdma.rkey = rd->rmt_us[index].rkey; | |
b6cf38f0 YR |
718 | r_io_u_d->sq_wr.wr.rdma.remote_addr = \ |
719 | rd->rmt_us[index].buf; | |
21b8aee8 | 720 | r_io_u_d->sq_wr.sg_list->length = io_us[i]->buflen; |
721 | break; | |
722 | case FIO_RDMA_CHA_SEND: | |
723 | r_io_u_d = io_us[i]->engine_data; | |
724 | r_io_u_d->sq_wr.opcode = IBV_WR_SEND; | |
725 | r_io_u_d->sq_wr.send_flags = IBV_SEND_SIGNALED; | |
726 | break; | |
727 | default: | |
728 | log_err("fio: unknown rdma protocol - %d\n", | |
729 | rd->rdma_protocol); | |
730 | break; | |
731 | } | |
732 | ||
733 | if (ibv_post_send(rd->qp, &r_io_u_d->sq_wr, &bad_wr) != 0) { | |
2a442a30 | 734 | log_err("fio: ibv_post_send fail: %m\n"); |
21b8aee8 | 735 | return -1; |
736 | } | |
737 | ||
738 | dprint_io_u(io_us[i], "fio_rdmaio_send"); | |
739 | } | |
740 | ||
741 | /* wait for completion | |
742 | rdma_poll_wait(td, comp_opcode); */ | |
743 | ||
744 | return i; | |
745 | } | |
746 | ||
747 | static int fio_rdmaio_recv(struct thread_data *td, struct io_u **io_us, | |
748 | unsigned int nr) | |
749 | { | |
565e784d | 750 | struct rdmaio_data *rd = td->io_ops_data; |
21b8aee8 | 751 | struct ibv_recv_wr *bad_wr; |
752 | struct rdma_io_u_data *r_io_u_d; | |
753 | int i; | |
754 | ||
755 | i = 0; | |
756 | if (rd->rdma_protocol == FIO_RDMA_CHA_RECV) { | |
757 | /* post io_u into recv queue */ | |
758 | for (i = 0; i < nr; i++) { | |
759 | r_io_u_d = io_us[i]->engine_data; | |
760 | if (ibv_post_recv(rd->qp, &r_io_u_d->rq_wr, &bad_wr) != | |
761 | 0) { | |
2a442a30 | 762 | log_err("fio: ibv_post_recv fail: %m\n"); |
21b8aee8 | 763 | return 1; |
764 | } | |
765 | } | |
766 | } else if ((rd->rdma_protocol == FIO_RDMA_MEM_READ) | |
767 | || (rd->rdma_protocol == FIO_RDMA_MEM_WRITE)) { | |
768 | /* re-post the rq_wr */ | |
769 | if (ibv_post_recv(rd->qp, &rd->rq_wr, &bad_wr) != 0) { | |
2a442a30 | 770 | log_err("fio: ibv_post_recv fail: %m\n"); |
21b8aee8 | 771 | return 1; |
772 | } | |
773 | ||
774 | rdma_poll_wait(td, IBV_WC_RECV); | |
775 | ||
776 | dprint(FD_IO, "fio: recv FINISH message\n"); | |
a05d62b2 YR |
777 | td->done = 1; |
778 | return 0; | |
21b8aee8 | 779 | } |
780 | ||
781 | return i; | |
782 | } | |
783 | ||
784 | static int fio_rdmaio_queue(struct thread_data *td, struct io_u *io_u) | |
785 | { | |
565e784d | 786 | struct rdmaio_data *rd = td->io_ops_data; |
21b8aee8 | 787 | |
788 | fio_ro_check(td, io_u); | |
789 | ||
790 | if (rd->io_u_queued_nr == (int)td->o.iodepth) | |
791 | return FIO_Q_BUSY; | |
792 | ||
793 | rd->io_us_queued[rd->io_u_queued_nr] = io_u; | |
794 | rd->io_u_queued_nr++; | |
795 | ||
796 | dprint_io_u(io_u, "fio_rdmaio_queue"); | |
797 | ||
798 | return FIO_Q_QUEUED; | |
799 | } | |
800 | ||
801 | static void fio_rdmaio_queued(struct thread_data *td, struct io_u **io_us, | |
802 | unsigned int nr) | |
803 | { | |
565e784d | 804 | struct rdmaio_data *rd = td->io_ops_data; |
21b8aee8 | 805 | struct timeval now; |
806 | unsigned int i; | |
807 | ||
808 | if (!fio_fill_issue_time(td)) | |
809 | return; | |
810 | ||
811 | fio_gettime(&now, NULL); | |
812 | ||
813 | for (i = 0; i < nr; i++) { | |
814 | struct io_u *io_u = io_us[i]; | |
815 | ||
816 | /* queued -> flight */ | |
817 | rd->io_us_flight[rd->io_u_flight_nr] = io_u; | |
818 | rd->io_u_flight_nr++; | |
819 | ||
820 | memcpy(&io_u->issue_time, &now, sizeof(now)); | |
821 | io_u_queued(td, io_u); | |
822 | } | |
823 | } | |
824 | ||
825 | static int fio_rdmaio_commit(struct thread_data *td) | |
826 | { | |
565e784d | 827 | struct rdmaio_data *rd = td->io_ops_data; |
21b8aee8 | 828 | struct io_u **io_us; |
829 | int ret; | |
830 | ||
831 | if (!rd->io_us_queued) | |
832 | return 0; | |
833 | ||
834 | io_us = rd->io_us_queued; | |
835 | do { | |
836 | /* RDMA_WRITE or RDMA_READ */ | |
222757cc | 837 | if (rd->is_client) |
21b8aee8 | 838 | ret = fio_rdmaio_send(td, io_us, rd->io_u_queued_nr); |
222757cc | 839 | else if (!rd->is_client) |
21b8aee8 | 840 | ret = fio_rdmaio_recv(td, io_us, rd->io_u_queued_nr); |
222757cc | 841 | else |
21b8aee8 | 842 | ret = 0; /* must be a SYNC */ |
843 | ||
844 | if (ret > 0) { | |
845 | fio_rdmaio_queued(td, io_us, ret); | |
846 | io_u_mark_submit(td, ret); | |
847 | rd->io_u_queued_nr -= ret; | |
848 | io_us += ret; | |
849 | ret = 0; | |
850 | } else | |
851 | break; | |
852 | } while (rd->io_u_queued_nr); | |
853 | ||
854 | return ret; | |
855 | } | |
856 | ||
857 | static int fio_rdmaio_connect(struct thread_data *td, struct fio_file *f) | |
858 | { | |
565e784d | 859 | struct rdmaio_data *rd = td->io_ops_data; |
21b8aee8 | 860 | struct rdma_conn_param conn_param; |
861 | struct ibv_send_wr *bad_wr; | |
862 | ||
222757cc | 863 | memset(&conn_param, 0, sizeof(conn_param)); |
21b8aee8 | 864 | conn_param.responder_resources = 1; |
865 | conn_param.initiator_depth = 1; | |
866 | conn_param.retry_count = 10; | |
867 | ||
868 | if (rdma_connect(rd->cm_id, &conn_param) != 0) { | |
2a442a30 | 869 | log_err("fio: rdma_connect fail: %m\n"); |
21b8aee8 | 870 | return 1; |
871 | } | |
872 | ||
873 | if (get_next_channel_event | |
874 | (td, rd->cm_channel, RDMA_CM_EVENT_ESTABLISHED) != 0) { | |
875 | log_err("fio: wait for RDMA_CM_EVENT_ESTABLISHED\n"); | |
876 | return 1; | |
877 | } | |
878 | ||
879 | /* send task request */ | |
880 | rd->send_buf.mode = htonl(rd->rdma_protocol); | |
881 | rd->send_buf.nr = htonl(td->o.iodepth); | |
882 | ||
883 | if (ibv_post_send(rd->qp, &rd->sq_wr, &bad_wr) != 0) { | |
2a442a30 | 884 | log_err("fio: ibv_post_send fail: %m"); |
21b8aee8 | 885 | return 1; |
886 | } | |
887 | ||
c4421263 LG |
888 | if (rdma_poll_wait(td, IBV_WC_SEND) < 0) |
889 | return 1; | |
21b8aee8 | 890 | |
891 | /* wait for remote MR info from server side */ | |
c4421263 LG |
892 | if (rdma_poll_wait(td, IBV_WC_RECV) < 0) |
893 | return 1; | |
21b8aee8 | 894 | |
7d7803fa YR |
895 | /* In SEND/RECV test, it's a good practice to setup the iodepth of |
896 | * of the RECV side deeper than that of the SEND side to | |
897 | * avoid RNR (receiver not ready) error. The | |
222757cc | 898 | * SEND side may send so many unsolicited message before |
7d7803fa YR |
899 | * RECV side commits sufficient recv buffers into recv queue. |
900 | * This may lead to RNR error. Here, SEND side pauses for a while | |
901 | * during which RECV side commits sufficient recv buffers. | |
902 | */ | |
903 | usleep(500000); | |
904 | ||
21b8aee8 | 905 | return 0; |
906 | } | |
907 | ||
908 | static int fio_rdmaio_accept(struct thread_data *td, struct fio_file *f) | |
909 | { | |
565e784d | 910 | struct rdmaio_data *rd = td->io_ops_data; |
21b8aee8 | 911 | struct rdma_conn_param conn_param; |
912 | struct ibv_send_wr *bad_wr; | |
c4421263 | 913 | int ret = 0; |
21b8aee8 | 914 | |
915 | /* rdma_accept() - then wait for accept success */ | |
222757cc | 916 | memset(&conn_param, 0, sizeof(conn_param)); |
21b8aee8 | 917 | conn_param.responder_resources = 1; |
918 | conn_param.initiator_depth = 1; | |
919 | ||
920 | if (rdma_accept(rd->child_cm_id, &conn_param) != 0) { | |
2a442a30 | 921 | log_err("fio: rdma_accept: %m\n"); |
21b8aee8 | 922 | return 1; |
923 | } | |
924 | ||
925 | if (get_next_channel_event | |
926 | (td, rd->cm_channel, RDMA_CM_EVENT_ESTABLISHED) != 0) { | |
927 | log_err("fio: wait for RDMA_CM_EVENT_ESTABLISHED\n"); | |
928 | return 1; | |
929 | } | |
930 | ||
931 | /* wait for request */ | |
c4421263 | 932 | ret = rdma_poll_wait(td, IBV_WC_RECV) < 0; |
21b8aee8 | 933 | |
934 | if (ibv_post_send(rd->qp, &rd->sq_wr, &bad_wr) != 0) { | |
2a442a30 | 935 | log_err("fio: ibv_post_send fail: %m"); |
21b8aee8 | 936 | return 1; |
937 | } | |
938 | ||
c4421263 LG |
939 | if (rdma_poll_wait(td, IBV_WC_SEND) < 0) |
940 | return 1; | |
21b8aee8 | 941 | |
c4421263 | 942 | return ret; |
21b8aee8 | 943 | } |
944 | ||
945 | static int fio_rdmaio_open_file(struct thread_data *td, struct fio_file *f) | |
946 | { | |
947 | if (td_read(td)) | |
948 | return fio_rdmaio_accept(td, f); | |
949 | else | |
950 | return fio_rdmaio_connect(td, f); | |
951 | } | |
952 | ||
953 | static int fio_rdmaio_close_file(struct thread_data *td, struct fio_file *f) | |
954 | { | |
565e784d | 955 | struct rdmaio_data *rd = td->io_ops_data; |
21b8aee8 | 956 | struct ibv_send_wr *bad_wr; |
957 | ||
958 | /* unregister rdma buffer */ | |
959 | ||
960 | /* | |
961 | * Client sends notification to the server side | |
962 | */ | |
963 | /* refer to: http://linux.die.net/man/7/rdma_cm */ | |
964 | if ((rd->is_client == 1) && ((rd->rdma_protocol == FIO_RDMA_MEM_WRITE) | |
965 | || (rd->rdma_protocol == | |
966 | FIO_RDMA_MEM_READ))) { | |
967 | if (ibv_post_send(rd->qp, &rd->sq_wr, &bad_wr) != 0) { | |
2a442a30 | 968 | log_err("fio: ibv_post_send fail: %m"); |
21b8aee8 | 969 | return 1; |
970 | } | |
971 | ||
de8f6de9 | 972 | dprint(FD_IO, "fio: close information sent success\n"); |
21b8aee8 | 973 | rdma_poll_wait(td, IBV_WC_SEND); |
974 | } | |
975 | ||
976 | if (rd->is_client == 1) | |
977 | rdma_disconnect(rd->cm_id); | |
978 | else { | |
979 | rdma_disconnect(rd->child_cm_id); | |
222757cc JA |
980 | #if 0 |
981 | rdma_disconnect(rd->cm_id); | |
982 | #endif | |
21b8aee8 | 983 | } |
984 | ||
222757cc JA |
985 | #if 0 |
986 | if (get_next_channel_event(td, rd->cm_channel, RDMA_CM_EVENT_DISCONNECTED) != 0) { | |
987 | log_err("fio: wait for RDMA_CM_EVENT_DISCONNECTED\n"); | |
988 | return 1; | |
989 | } | |
990 | #endif | |
21b8aee8 | 991 | |
21b8aee8 | 992 | ibv_destroy_cq(rd->cq); |
7d7803fa | 993 | ibv_destroy_qp(rd->qp); |
21b8aee8 | 994 | |
995 | if (rd->is_client == 1) | |
996 | rdma_destroy_id(rd->cm_id); | |
997 | else { | |
998 | rdma_destroy_id(rd->child_cm_id); | |
999 | rdma_destroy_id(rd->cm_id); | |
1000 | } | |
1001 | ||
1002 | ibv_destroy_comp_channel(rd->channel); | |
1003 | ibv_dealloc_pd(rd->pd); | |
1004 | ||
1005 | return 0; | |
1006 | } | |
1007 | ||
1008 | static int fio_rdmaio_setup_connect(struct thread_data *td, const char *host, | |
1009 | unsigned short port) | |
1010 | { | |
565e784d | 1011 | struct rdmaio_data *rd = td->io_ops_data; |
21b8aee8 | 1012 | struct ibv_recv_wr *bad_wr; |
222757cc | 1013 | int err; |
21b8aee8 | 1014 | |
1015 | rd->addr.sin_family = AF_INET; | |
1016 | rd->addr.sin_port = htons(port); | |
1017 | ||
1018 | if (inet_aton(host, &rd->addr.sin_addr) != 1) { | |
1019 | struct hostent *hent; | |
1020 | ||
1021 | hent = gethostbyname(host); | |
1022 | if (!hent) { | |
1023 | td_verror(td, errno, "gethostbyname"); | |
1024 | return 1; | |
1025 | } | |
1026 | ||
1027 | memcpy(&rd->addr.sin_addr, hent->h_addr, 4); | |
1028 | } | |
1029 | ||
1030 | /* resolve route */ | |
222757cc JA |
1031 | err = rdma_resolve_addr(rd->cm_id, NULL, (struct sockaddr *)&rd->addr, 2000); |
1032 | if (err != 0) { | |
1033 | log_err("fio: rdma_resolve_addr: %d\n", err); | |
21b8aee8 | 1034 | return 1; |
1035 | } | |
1036 | ||
222757cc JA |
1037 | err = get_next_channel_event(td, rd->cm_channel, RDMA_CM_EVENT_ADDR_RESOLVED); |
1038 | if (err != 0) { | |
1039 | log_err("fio: get_next_channel_event: %d\n", err); | |
21b8aee8 | 1040 | return 1; |
1041 | } | |
1042 | ||
1043 | /* resolve route */ | |
222757cc JA |
1044 | err = rdma_resolve_route(rd->cm_id, 2000); |
1045 | if (err != 0) { | |
1046 | log_err("fio: rdma_resolve_route: %d\n", err); | |
21b8aee8 | 1047 | return 1; |
1048 | } | |
1049 | ||
222757cc JA |
1050 | err = get_next_channel_event(td, rd->cm_channel, RDMA_CM_EVENT_ROUTE_RESOLVED); |
1051 | if (err != 0) { | |
1052 | log_err("fio: get_next_channel_event: %d\n", err); | |
21b8aee8 | 1053 | return 1; |
1054 | } | |
1055 | ||
1056 | /* create qp and buffer */ | |
1057 | if (fio_rdmaio_setup_qp(td) != 0) | |
1058 | return 1; | |
1059 | ||
1060 | if (fio_rdmaio_setup_control_msg_buffers(td) != 0) | |
1061 | return 1; | |
1062 | ||
1063 | /* post recv buf */ | |
222757cc JA |
1064 | err = ibv_post_recv(rd->qp, &rd->rq_wr, &bad_wr); |
1065 | if (err != 0) { | |
1066 | log_err("fio: ibv_post_recv fail: %d\n", err); | |
21b8aee8 | 1067 | return 1; |
1068 | } | |
1069 | ||
1070 | return 0; | |
1071 | } | |
1072 | ||
1073 | static int fio_rdmaio_setup_listen(struct thread_data *td, short port) | |
1074 | { | |
565e784d | 1075 | struct rdmaio_data *rd = td->io_ops_data; |
21b8aee8 | 1076 | struct ibv_recv_wr *bad_wr; |
263775ad LG |
1077 | int state = td->runstate; |
1078 | ||
1079 | td_set_runstate(td, TD_SETTING_UP); | |
21b8aee8 | 1080 | |
1081 | rd->addr.sin_family = AF_INET; | |
1082 | rd->addr.sin_addr.s_addr = htonl(INADDR_ANY); | |
1083 | rd->addr.sin_port = htons(port); | |
1084 | ||
1085 | /* rdma_listen */ | |
1086 | if (rdma_bind_addr(rd->cm_id, (struct sockaddr *)&rd->addr) != 0) { | |
2a442a30 | 1087 | log_err("fio: rdma_bind_addr fail: %m\n"); |
21b8aee8 | 1088 | return 1; |
1089 | } | |
1090 | ||
1091 | if (rdma_listen(rd->cm_id, 3) != 0) { | |
2a442a30 | 1092 | log_err("fio: rdma_listen fail: %m\n"); |
21b8aee8 | 1093 | return 1; |
1094 | } | |
1095 | ||
263775ad LG |
1096 | log_info("fio: waiting for connection\n"); |
1097 | ||
21b8aee8 | 1098 | /* wait for CONNECT_REQUEST */ |
1099 | if (get_next_channel_event | |
1100 | (td, rd->cm_channel, RDMA_CM_EVENT_CONNECT_REQUEST) != 0) { | |
1101 | log_err("fio: wait for RDMA_CM_EVENT_CONNECT_REQUEST\n"); | |
1102 | return 1; | |
1103 | } | |
1104 | ||
1105 | if (fio_rdmaio_setup_qp(td) != 0) | |
1106 | return 1; | |
1107 | ||
1108 | if (fio_rdmaio_setup_control_msg_buffers(td) != 0) | |
1109 | return 1; | |
1110 | ||
1111 | /* post recv buf */ | |
1112 | if (ibv_post_recv(rd->qp, &rd->rq_wr, &bad_wr) != 0) { | |
2a442a30 | 1113 | log_err("fio: ibv_post_recv fail: %m\n"); |
21b8aee8 | 1114 | return 1; |
1115 | } | |
1116 | ||
263775ad | 1117 | td_set_runstate(td, state); |
21b8aee8 | 1118 | return 0; |
1119 | } | |
1120 | ||
38b9354a | 1121 | static int check_set_rlimits(struct thread_data *td) |
21b8aee8 | 1122 | { |
38b9354a | 1123 | #ifdef CONFIG_RLIMIT_MEMLOCK |
21b8aee8 | 1124 | struct rlimit rl; |
1125 | ||
21b8aee8 | 1126 | /* check RLIMIT_MEMLOCK */ |
1127 | if (getrlimit(RLIMIT_MEMLOCK, &rl) != 0) { | |
1128 | log_err("fio: getrlimit fail: %d(%s)\n", | |
1129 | errno, strerror(errno)); | |
1130 | return 1; | |
1131 | } | |
1132 | ||
1133 | /* soft limit */ | |
1134 | if ((rl.rlim_cur != RLIM_INFINITY) | |
1135 | && (rl.rlim_cur < td->orig_buffer_size)) { | |
e07f72d3 BVA |
1136 | log_err("fio: soft RLIMIT_MEMLOCK is: %" PRId64 "\n", |
1137 | rl.rlim_cur); | |
1138 | log_err("fio: total block size is: %zd\n", | |
21b8aee8 | 1139 | td->orig_buffer_size); |
1140 | /* try to set larger RLIMIT_MEMLOCK */ | |
1141 | rl.rlim_cur = rl.rlim_max; | |
1142 | if (setrlimit(RLIMIT_MEMLOCK, &rl) != 0) { | |
1143 | log_err("fio: setrlimit fail: %d(%s)\n", | |
1144 | errno, strerror(errno)); | |
1145 | log_err("fio: you may try enlarge MEMLOCK by root\n"); | |
1146 | log_err("# ulimit -l unlimited\n"); | |
1147 | return 1; | |
1148 | } | |
1149 | } | |
38b9354a JA |
1150 | #endif |
1151 | ||
1152 | return 0; | |
1153 | } | |
1154 | ||
cdf91594 | 1155 | static int compat_options(struct thread_data *td) |
38b9354a | 1156 | { |
cdf91594 LG |
1157 | // The original RDMA engine had an ugly / seperator |
1158 | // on the filename for it's options. This function | |
1159 | // retains backwards compatibility with it.100 | |
38b9354a | 1160 | |
cdf91594 LG |
1161 | struct rdmaio_options *o = td->eo; |
1162 | char *modep, *portp; | |
1163 | char *filename = td->o.filename; | |
38b9354a | 1164 | |
cdf91594 LG |
1165 | if (!filename) |
1166 | return 0; | |
21b8aee8 | 1167 | |
cdf91594 LG |
1168 | portp = strchr(filename, '/'); |
1169 | if (portp == NULL) | |
1170 | return 0; | |
21b8aee8 | 1171 | |
cdf91594 LG |
1172 | *portp = '\0'; |
1173 | portp++; | |
21b8aee8 | 1174 | |
cdf91594 LG |
1175 | o->port = strtol(portp, NULL, 10); |
1176 | if (!o->port || o->port > 65535) | |
21b8aee8 | 1177 | goto bad_host; |
1178 | ||
cdf91594 LG |
1179 | modep = strchr(portp, '/'); |
1180 | if (modep != NULL) { | |
1181 | *modep = '\0'; | |
1182 | modep++; | |
21b8aee8 | 1183 | } |
1184 | ||
21b8aee8 | 1185 | if (modep) { |
1186 | if (!strncmp("rdma_write", modep, strlen(modep)) || | |
1187 | !strncmp("RDMA_WRITE", modep, strlen(modep))) | |
cdf91594 | 1188 | o->verb = FIO_RDMA_MEM_WRITE; |
21b8aee8 | 1189 | else if (!strncmp("rdma_read", modep, strlen(modep)) || |
1190 | !strncmp("RDMA_READ", modep, strlen(modep))) | |
cdf91594 | 1191 | o->verb = FIO_RDMA_MEM_READ; |
21b8aee8 | 1192 | else if (!strncmp("send", modep, strlen(modep)) || |
1193 | !strncmp("SEND", modep, strlen(modep))) | |
cdf91594 | 1194 | o->verb = FIO_RDMA_CHA_SEND; |
21b8aee8 | 1195 | else |
1196 | goto bad_host; | |
1197 | } else | |
cdf91594 LG |
1198 | o->verb = FIO_RDMA_MEM_WRITE; |
1199 | ||
1200 | ||
1201 | return 0; | |
21b8aee8 | 1202 | |
cdf91594 LG |
1203 | bad_host: |
1204 | log_err("fio: bad rdma host/port/protocol: %s\n", td->o.filename); | |
1205 | return 1; | |
1206 | } | |
1207 | ||
1208 | static int fio_rdmaio_init(struct thread_data *td) | |
1209 | { | |
565e784d | 1210 | struct rdmaio_data *rd = td->io_ops_data; |
cdf91594 LG |
1211 | struct rdmaio_options *o = td->eo; |
1212 | unsigned int max_bs; | |
1213 | int ret, i; | |
1214 | ||
1215 | if (td_rw(td)) { | |
1216 | log_err("fio: rdma connections must be read OR write\n"); | |
1217 | return 1; | |
1218 | } | |
1219 | if (td_random(td)) { | |
1220 | log_err("fio: RDMA network IO can't be random\n"); | |
1221 | return 1; | |
1222 | } | |
1223 | ||
1224 | if (compat_options(td)) | |
1225 | return 1; | |
1226 | ||
1227 | if (!o->port) { | |
1228 | log_err("fio: no port has been specified which is required " | |
1229 | "for the rdma engine\n"); | |
1230 | return 1; | |
1231 | } | |
1232 | ||
1233 | if (check_set_rlimits(td)) | |
1234 | return 1; | |
1235 | ||
1236 | rd->rdma_protocol = o->verb; | |
21b8aee8 | 1237 | rd->cq_event_num = 0; |
1238 | ||
1239 | rd->cm_channel = rdma_create_event_channel(); | |
1240 | if (!rd->cm_channel) { | |
2a442a30 | 1241 | log_err("fio: rdma_create_event_channel fail: %m\n"); |
21b8aee8 | 1242 | return 1; |
1243 | } | |
1244 | ||
1245 | ret = rdma_create_id(rd->cm_channel, &rd->cm_id, rd, RDMA_PS_TCP); | |
1246 | if (ret) { | |
2a442a30 | 1247 | log_err("fio: rdma_create_id fail: %m\n"); |
21b8aee8 | 1248 | return 1; |
1249 | } | |
1250 | ||
1251 | if ((rd->rdma_protocol == FIO_RDMA_MEM_WRITE) || | |
1252 | (rd->rdma_protocol == FIO_RDMA_MEM_READ)) { | |
1253 | rd->rmt_us = | |
76cc5224 | 1254 | malloc(FIO_RDMA_MAX_IO_DEPTH * sizeof(struct remote_u)); |
21b8aee8 | 1255 | memset(rd->rmt_us, 0, |
76cc5224 | 1256 | FIO_RDMA_MAX_IO_DEPTH * sizeof(struct remote_u)); |
21b8aee8 | 1257 | rd->rmt_nr = 0; |
1258 | } | |
1259 | ||
1260 | rd->io_us_queued = malloc(td->o.iodepth * sizeof(struct io_u *)); | |
1261 | memset(rd->io_us_queued, 0, td->o.iodepth * sizeof(struct io_u *)); | |
1262 | rd->io_u_queued_nr = 0; | |
1263 | ||
1264 | rd->io_us_flight = malloc(td->o.iodepth * sizeof(struct io_u *)); | |
1265 | memset(rd->io_us_flight, 0, td->o.iodepth * sizeof(struct io_u *)); | |
1266 | rd->io_u_flight_nr = 0; | |
1267 | ||
1268 | rd->io_us_completed = malloc(td->o.iodepth * sizeof(struct io_u *)); | |
1269 | memset(rd->io_us_completed, 0, td->o.iodepth * sizeof(struct io_u *)); | |
1270 | rd->io_u_completed_nr = 0; | |
1271 | ||
1272 | if (td_read(td)) { /* READ as the server */ | |
1273 | rd->is_client = 0; | |
263775ad | 1274 | td->flags |= TD_F_NO_PROGRESS; |
21b8aee8 | 1275 | /* server rd->rdma_buf_len will be setup after got request */ |
cdf91594 | 1276 | ret = fio_rdmaio_setup_listen(td, o->port); |
21b8aee8 | 1277 | } else { /* WRITE as the client */ |
1278 | rd->is_client = 1; | |
cdf91594 | 1279 | ret = fio_rdmaio_setup_connect(td, td->o.filename, o->port); |
21b8aee8 | 1280 | } |
1281 | ||
21b8aee8 | 1282 | max_bs = max(td->o.max_bs[DDIR_READ], td->o.max_bs[DDIR_WRITE]); |
c4421263 LG |
1283 | rd->send_buf.max_bs = htonl(max_bs); |
1284 | ||
21b8aee8 | 1285 | /* register each io_u in the free list */ |
954cd73a YR |
1286 | for (i = 0; i < td->io_u_freelist.nr; i++) { |
1287 | struct io_u *io_u = td->io_u_freelist.io_us[i]; | |
21b8aee8 | 1288 | |
1289 | io_u->engine_data = malloc(sizeof(struct rdma_io_u_data)); | |
1290 | memset(io_u->engine_data, 0, sizeof(struct rdma_io_u_data)); | |
1291 | ((struct rdma_io_u_data *)io_u->engine_data)->wr_id = i; | |
1292 | ||
1293 | io_u->mr = ibv_reg_mr(rd->pd, io_u->buf, max_bs, | |
1294 | IBV_ACCESS_LOCAL_WRITE | | |
1295 | IBV_ACCESS_REMOTE_READ | | |
1296 | IBV_ACCESS_REMOTE_WRITE); | |
1297 | if (io_u->mr == NULL) { | |
2a442a30 | 1298 | log_err("fio: ibv_reg_mr io_u failed: %m\n"); |
21b8aee8 | 1299 | return 1; |
1300 | } | |
1301 | ||
1302 | rd->send_buf.rmt_us[i].buf = | |
1303 | htonll((uint64_t) (unsigned long)io_u->buf); | |
1304 | rd->send_buf.rmt_us[i].rkey = htonl(io_u->mr->rkey); | |
1305 | rd->send_buf.rmt_us[i].size = htonl(max_bs); | |
1306 | ||
222757cc JA |
1307 | #if 0 |
1308 | log_info("fio: Send rkey %x addr %" PRIx64 " len %d to client\n", io_u->mr->rkey, io_u->buf, max_bs); */ | |
1309 | #endif | |
21b8aee8 | 1310 | } |
1311 | ||
1312 | rd->send_buf.nr = htonl(i); | |
1313 | ||
1314 | return ret; | |
21b8aee8 | 1315 | } |
1316 | ||
1317 | static void fio_rdmaio_cleanup(struct thread_data *td) | |
1318 | { | |
565e784d | 1319 | struct rdmaio_data *rd = td->io_ops_data; |
21b8aee8 | 1320 | |
222757cc | 1321 | if (rd) |
21b8aee8 | 1322 | free(rd); |
21b8aee8 | 1323 | } |
1324 | ||
1325 | static int fio_rdmaio_setup(struct thread_data *td) | |
1326 | { | |
1327 | struct rdmaio_data *rd; | |
1328 | ||
cdf91594 LG |
1329 | if (!td->files_index) { |
1330 | add_file(td, td->o.filename ?: "rdma", 0, 0); | |
1331 | td->o.nr_files = td->o.nr_files ?: 1; | |
1332 | td->o.open_files++; | |
1333 | } | |
1334 | ||
565e784d | 1335 | if (!td->io_ops_data) { |
222757cc | 1336 | rd = malloc(sizeof(*rd)); |
21b8aee8 | 1337 | |
1338 | memset(rd, 0, sizeof(*rd)); | |
ec4dde59 | 1339 | init_rand_seed(&rd->rand_state, (unsigned int) GOLDEN_RATIO_PRIME, 0); |
565e784d | 1340 | td->io_ops_data = rd; |
21b8aee8 | 1341 | } |
1342 | ||
1343 | return 0; | |
1344 | } | |
1345 | ||
1346 | static struct ioengine_ops ioengine_rw = { | |
cdf91594 LG |
1347 | .name = "rdma", |
1348 | .version = FIO_IOOPS_VERSION, | |
1349 | .setup = fio_rdmaio_setup, | |
1350 | .init = fio_rdmaio_init, | |
1351 | .prep = fio_rdmaio_prep, | |
1352 | .queue = fio_rdmaio_queue, | |
1353 | .commit = fio_rdmaio_commit, | |
1354 | .getevents = fio_rdmaio_getevents, | |
1355 | .event = fio_rdmaio_event, | |
1356 | .cleanup = fio_rdmaio_cleanup, | |
1357 | .open_file = fio_rdmaio_open_file, | |
1358 | .close_file = fio_rdmaio_close_file, | |
1359 | .flags = FIO_DISKLESSIO | FIO_UNIDIR | FIO_PIPEIO, | |
1360 | .options = options, | |
1361 | .option_struct_size = sizeof(struct rdmaio_options), | |
21b8aee8 | 1362 | }; |
1363 | ||
21b8aee8 | 1364 | static void fio_init fio_rdmaio_register(void) |
1365 | { | |
1366 | register_ioengine(&ioengine_rw); | |
1367 | } | |
1368 | ||
1369 | static void fio_exit fio_rdmaio_unregister(void) | |
1370 | { | |
1371 | unregister_ioengine(&ioengine_rw); | |
1372 | } |