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