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