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