Commit | Line | Data |
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e4c4625f JM |
1 | /* |
2 | * librpma_fio: librpma_apm and librpma_gpspm engines' common part. | |
3 | * | |
8fabefc1 | 4 | * Copyright 2021-2022, Intel Corporation |
e4c4625f JM |
5 | * |
6 | * This program is free software; you can redistribute it and/or | |
7 | * modify it under the terms of the GNU General Public License, | |
8 | * version 2 as published by the Free Software Foundation.. | |
9 | * | |
10 | * This program is distributed in the hope that it will be useful, | |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | * GNU General Public License for more details. | |
14 | */ | |
15 | ||
8fabefc1 KS |
16 | #ifdef CONFIG_LIBPMEM2_INSTALLED |
17 | #include "librpma_fio_pmem2.h" | |
18 | #else | |
19 | #include "librpma_fio_pmem.h" | |
20 | #endif /* CONFIG_LIBPMEM2_INSTALLED */ | |
e4c4625f JM |
21 | |
22 | struct fio_option librpma_fio_options[] = { | |
23 | { | |
24 | .name = "serverip", | |
25 | .lname = "rpma_server_ip", | |
26 | .type = FIO_OPT_STR_STORE, | |
27 | .off1 = offsetof(struct librpma_fio_options_values, server_ip), | |
28 | .help = "IP address the server is listening on", | |
29 | .def = "", | |
30 | .category = FIO_OPT_C_ENGINE, | |
31 | .group = FIO_OPT_G_LIBRPMA, | |
32 | }, | |
33 | { | |
34 | .name = "port", | |
35 | .lname = "rpma_server port", | |
36 | .type = FIO_OPT_STR_STORE, | |
37 | .off1 = offsetof(struct librpma_fio_options_values, port), | |
38 | .help = "port the server is listening on", | |
39 | .def = "7204", | |
40 | .category = FIO_OPT_C_ENGINE, | |
41 | .group = FIO_OPT_G_LIBRPMA, | |
42 | }, | |
43 | { | |
44 | .name = "direct_write_to_pmem", | |
45 | .lname = "Direct Write to PMem (via RDMA) from the remote host is possible", | |
46 | .type = FIO_OPT_BOOL, | |
47 | .off1 = offsetof(struct librpma_fio_options_values, | |
48 | direct_write_to_pmem), | |
49 | .help = "Set to true ONLY when Direct Write to PMem from the remote host is possible (https://pmem.io/rpma/documentation/basic-direct-write-to-pmem.html)", | |
50 | .def = "", | |
51 | .category = FIO_OPT_C_ENGINE, | |
52 | .group = FIO_OPT_G_LIBRPMA, | |
53 | }, | |
6a229978 OS |
54 | { |
55 | .name = "busy_wait_polling", | |
56 | .lname = "Set to 0 to wait for completion instead of busy-wait polling completion.", | |
57 | .type = FIO_OPT_BOOL, | |
58 | .off1 = offsetof(struct librpma_fio_options_values, | |
59 | busy_wait_polling), | |
60 | .help = "Set to false if you want to reduce CPU usage", | |
61 | .def = "1", | |
62 | .category = FIO_OPT_C_ENGINE, | |
63 | .group = FIO_OPT_G_LIBRPMA, | |
64 | }, | |
e4c4625f JM |
65 | { |
66 | .name = NULL, | |
67 | }, | |
68 | }; | |
69 | ||
70 | int librpma_fio_td_port(const char *port_base_str, struct thread_data *td, | |
71 | char *port_out) | |
72 | { | |
73 | unsigned long int port_ul = strtoul(port_base_str, NULL, 10); | |
74 | unsigned int port_new; | |
75 | ||
76 | port_out[0] = '\0'; | |
77 | ||
78 | if (port_ul == ULONG_MAX) { | |
79 | td_verror(td, errno, "strtoul"); | |
80 | return -1; | |
81 | } | |
82 | port_ul += td->thread_number - 1; | |
83 | if (port_ul >= UINT_MAX) { | |
84 | log_err("[%u] port number (%lu) bigger than UINT_MAX\n", | |
85 | td->thread_number, port_ul); | |
86 | return -1; | |
87 | } | |
88 | ||
89 | port_new = port_ul; | |
90 | snprintf(port_out, LIBRPMA_FIO_PORT_STR_LEN_MAX - 1, "%u", port_new); | |
91 | ||
92 | return 0; | |
93 | } | |
94 | ||
95 | char *librpma_fio_allocate_dram(struct thread_data *td, size_t size, | |
96 | struct librpma_fio_mem *mem) | |
97 | { | |
98 | char *mem_ptr = NULL; | |
99 | int ret; | |
100 | ||
101 | if ((ret = posix_memalign((void **)&mem_ptr, page_size, size))) { | |
102 | log_err("fio: posix_memalign() failed\n"); | |
103 | td_verror(td, ret, "posix_memalign"); | |
104 | return NULL; | |
105 | } | |
106 | ||
107 | mem->mem_ptr = mem_ptr; | |
108 | mem->size_mmap = 0; | |
109 | ||
110 | return mem_ptr; | |
111 | } | |
112 | ||
a6becc33 | 113 | char *librpma_fio_allocate_pmem(struct thread_data *td, struct fio_file *f, |
e4c4625f JM |
114 | size_t size, struct librpma_fio_mem *mem) |
115 | { | |
e4c4625f | 116 | size_t ws_offset; |
8fabefc1 | 117 | mem->mem_ptr = NULL; |
e4c4625f JM |
118 | |
119 | if (size % page_size) { | |
120 | log_err("fio: size (%zu) is not aligned to page size (%zu)\n", | |
121 | size, page_size); | |
122 | return NULL; | |
123 | } | |
124 | ||
a6becc33 WL |
125 | if (f->filetype == FIO_TYPE_CHAR) { |
126 | /* Each thread uses a separate offset within DeviceDAX. */ | |
127 | ws_offset = (td->thread_number - 1) * size; | |
128 | } else { | |
129 | /* Each thread uses a separate FileSystemDAX file. No offset is needed. */ | |
130 | ws_offset = 0; | |
131 | } | |
e4c4625f | 132 | |
a6becc33 | 133 | if (!f->file_name) { |
e4c4625f JM |
134 | log_err("fio: filename is not set\n"); |
135 | return NULL; | |
136 | } | |
137 | ||
8fabefc1 KS |
138 | if (librpma_fio_pmem_map_file(f, size, mem, ws_offset)) { |
139 | log_err("fio: librpma_fio_pmem_map_file(%s) failed\n", | |
a6becc33 | 140 | f->file_name); |
8fabefc1 | 141 | return NULL; |
e4c4625f JM |
142 | } |
143 | ||
144 | log_info("fio: size of memory mapped from the file %s: %zu\n", | |
8fabefc1 | 145 | f->file_name, mem->size_mmap); |
e4c4625f | 146 | |
8fabefc1 | 147 | log_info("fio: library used to map PMem from file: %s\n", RPMA_PMEM_USED); |
e4c4625f | 148 | |
8fabefc1 | 149 | return mem->mem_ptr ? mem->mem_ptr + ws_offset : NULL; |
e4c4625f JM |
150 | } |
151 | ||
152 | void librpma_fio_free(struct librpma_fio_mem *mem) | |
153 | { | |
154 | if (mem->size_mmap) | |
8fabefc1 | 155 | librpma_fio_unmap(mem); |
e4c4625f JM |
156 | else |
157 | free(mem->mem_ptr); | |
158 | } | |
159 | ||
160 | #define LIBRPMA_FIO_RETRY_MAX_NO 10 | |
161 | #define LIBRPMA_FIO_RETRY_DELAY_S 5 | |
162 | ||
163 | int librpma_fio_client_init(struct thread_data *td, | |
164 | struct rpma_conn_cfg *cfg) | |
165 | { | |
166 | struct librpma_fio_client_data *ccd; | |
167 | struct librpma_fio_options_values *o = td->eo; | |
168 | struct ibv_context *dev = NULL; | |
169 | char port_td[LIBRPMA_FIO_PORT_STR_LEN_MAX]; | |
170 | struct rpma_conn_req *req = NULL; | |
171 | enum rpma_conn_event event; | |
172 | struct rpma_conn_private_data pdata; | |
173 | enum rpma_log_level log_level_aux = RPMA_LOG_LEVEL_WARNING; | |
174 | int remote_flush_type; | |
175 | int retry; | |
176 | int ret; | |
177 | ||
178 | /* --debug=net sets RPMA_LOG_THRESHOLD_AUX to RPMA_LOG_LEVEL_INFO */ | |
179 | #ifdef FIO_INC_DEBUG | |
180 | if ((1UL << FD_NET) & fio_debug) | |
181 | log_level_aux = RPMA_LOG_LEVEL_INFO; | |
182 | #endif | |
183 | ||
184 | /* configure logging thresholds to see more details */ | |
185 | rpma_log_set_threshold(RPMA_LOG_THRESHOLD, RPMA_LOG_LEVEL_INFO); | |
186 | rpma_log_set_threshold(RPMA_LOG_THRESHOLD_AUX, log_level_aux); | |
187 | ||
188 | /* obtain an IBV context for a remote IP address */ | |
189 | if ((ret = rpma_utils_get_ibv_context(o->server_ip, | |
190 | RPMA_UTIL_IBV_CONTEXT_REMOTE, &dev))) { | |
191 | librpma_td_verror(td, ret, "rpma_utils_get_ibv_context"); | |
192 | return -1; | |
193 | } | |
194 | ||
195 | /* allocate client's data */ | |
196 | ccd = calloc(1, sizeof(*ccd)); | |
197 | if (ccd == NULL) { | |
198 | td_verror(td, errno, "calloc"); | |
199 | return -1; | |
200 | } | |
201 | ||
202 | /* allocate all in-memory queues */ | |
203 | ccd->io_us_queued = calloc(td->o.iodepth, sizeof(*ccd->io_us_queued)); | |
204 | if (ccd->io_us_queued == NULL) { | |
205 | td_verror(td, errno, "calloc"); | |
206 | goto err_free_ccd; | |
207 | } | |
208 | ||
209 | ccd->io_us_flight = calloc(td->o.iodepth, sizeof(*ccd->io_us_flight)); | |
210 | if (ccd->io_us_flight == NULL) { | |
211 | td_verror(td, errno, "calloc"); | |
212 | goto err_free_io_u_queues; | |
213 | } | |
214 | ||
215 | ccd->io_us_completed = calloc(td->o.iodepth, | |
216 | sizeof(*ccd->io_us_completed)); | |
217 | if (ccd->io_us_completed == NULL) { | |
218 | td_verror(td, errno, "calloc"); | |
219 | goto err_free_io_u_queues; | |
220 | } | |
221 | ||
222 | /* create a new peer object */ | |
223 | if ((ret = rpma_peer_new(dev, &ccd->peer))) { | |
224 | librpma_td_verror(td, ret, "rpma_peer_new"); | |
225 | goto err_free_io_u_queues; | |
226 | } | |
227 | ||
228 | /* create a connection request */ | |
229 | if (librpma_fio_td_port(o->port, td, port_td)) | |
230 | goto err_peer_delete; | |
231 | ||
232 | for (retry = 0; retry < LIBRPMA_FIO_RETRY_MAX_NO; retry++) { | |
233 | if ((ret = rpma_conn_req_new(ccd->peer, o->server_ip, port_td, | |
234 | cfg, &req))) { | |
235 | librpma_td_verror(td, ret, "rpma_conn_req_new"); | |
236 | goto err_peer_delete; | |
237 | } | |
238 | ||
239 | /* | |
240 | * Connect the connection request | |
241 | * and obtain the connection object. | |
242 | */ | |
243 | if ((ret = rpma_conn_req_connect(&req, NULL, &ccd->conn))) { | |
244 | librpma_td_verror(td, ret, "rpma_conn_req_connect"); | |
245 | goto err_req_delete; | |
246 | } | |
247 | ||
248 | /* wait for the connection to establish */ | |
249 | if ((ret = rpma_conn_next_event(ccd->conn, &event))) { | |
250 | librpma_td_verror(td, ret, "rpma_conn_next_event"); | |
251 | goto err_conn_delete; | |
252 | } else if (event == RPMA_CONN_ESTABLISHED) { | |
253 | break; | |
254 | } else if (event == RPMA_CONN_REJECTED) { | |
255 | (void) rpma_conn_disconnect(ccd->conn); | |
256 | (void) rpma_conn_delete(&ccd->conn); | |
257 | if (retry < LIBRPMA_FIO_RETRY_MAX_NO - 1) { | |
258 | log_err("Thread [%d]: Retrying (#%i) ...\n", | |
259 | td->thread_number, retry + 1); | |
260 | sleep(LIBRPMA_FIO_RETRY_DELAY_S); | |
261 | } else { | |
262 | log_err( | |
263 | "Thread [%d]: The maximum number of retries exceeded. Closing.\n", | |
264 | td->thread_number); | |
265 | } | |
266 | } else { | |
267 | log_err( | |
268 | "rpma_conn_next_event returned an unexptected event: (%s != RPMA_CONN_ESTABLISHED)\n", | |
269 | rpma_utils_conn_event_2str(event)); | |
270 | goto err_conn_delete; | |
271 | } | |
272 | } | |
273 | ||
274 | if (retry > 0) | |
275 | log_err("Thread [%d]: Connected after retry #%i\n", | |
276 | td->thread_number, retry); | |
277 | ||
278 | if (ccd->conn == NULL) | |
279 | goto err_peer_delete; | |
280 | ||
4ef7dd21 OS |
281 | /* get the connection's main CQ */ |
282 | if ((ret = rpma_conn_get_cq(ccd->conn, &ccd->cq))) { | |
283 | librpma_td_verror(td, ret, "rpma_conn_get_cq"); | |
284 | goto err_conn_delete; | |
285 | } | |
286 | ||
e4c4625f JM |
287 | /* get the connection's private data sent from the server */ |
288 | if ((ret = rpma_conn_get_private_data(ccd->conn, &pdata))) { | |
289 | librpma_td_verror(td, ret, "rpma_conn_get_private_data"); | |
290 | goto err_conn_delete; | |
291 | } | |
292 | ||
293 | /* get the server's workspace representation */ | |
294 | ccd->ws = pdata.ptr; | |
295 | ||
296 | /* create the server's memory representation */ | |
297 | if ((ret = rpma_mr_remote_from_descriptor(&ccd->ws->descriptor[0], | |
298 | ccd->ws->mr_desc_size, &ccd->server_mr))) { | |
299 | librpma_td_verror(td, ret, "rpma_mr_remote_from_descriptor"); | |
300 | goto err_conn_delete; | |
301 | } | |
302 | ||
303 | /* get the total size of the shared server memory */ | |
304 | if ((ret = rpma_mr_remote_get_size(ccd->server_mr, &ccd->ws_size))) { | |
305 | librpma_td_verror(td, ret, "rpma_mr_remote_get_size"); | |
306 | goto err_conn_delete; | |
307 | } | |
308 | ||
309 | /* get flush type of the remote node */ | |
310 | if ((ret = rpma_mr_remote_get_flush_type(ccd->server_mr, | |
311 | &remote_flush_type))) { | |
312 | librpma_td_verror(td, ret, "rpma_mr_remote_get_flush_type"); | |
313 | goto err_conn_delete; | |
314 | } | |
315 | ||
316 | ccd->server_mr_flush_type = | |
317 | (remote_flush_type & RPMA_MR_USAGE_FLUSH_TYPE_PERSISTENT) ? | |
318 | RPMA_FLUSH_TYPE_PERSISTENT : RPMA_FLUSH_TYPE_VISIBILITY; | |
319 | ||
320 | /* | |
321 | * Assure an io_us buffer allocation is page-size-aligned which is required | |
322 | * to register for RDMA. User-provided value is intentionally ignored. | |
323 | */ | |
324 | td->o.mem_align = page_size; | |
325 | ||
326 | td->io_ops_data = ccd; | |
327 | ||
328 | return 0; | |
329 | ||
330 | err_conn_delete: | |
331 | (void) rpma_conn_disconnect(ccd->conn); | |
332 | (void) rpma_conn_delete(&ccd->conn); | |
333 | ||
334 | err_req_delete: | |
335 | (void) rpma_conn_req_delete(&req); | |
336 | ||
337 | err_peer_delete: | |
338 | (void) rpma_peer_delete(&ccd->peer); | |
339 | ||
340 | err_free_io_u_queues: | |
341 | free(ccd->io_us_queued); | |
342 | free(ccd->io_us_flight); | |
343 | free(ccd->io_us_completed); | |
344 | ||
345 | err_free_ccd: | |
346 | free(ccd); | |
347 | ||
348 | return -1; | |
349 | } | |
350 | ||
351 | void librpma_fio_client_cleanup(struct thread_data *td) | |
352 | { | |
353 | struct librpma_fio_client_data *ccd = td->io_ops_data; | |
354 | enum rpma_conn_event ev; | |
355 | int ret; | |
356 | ||
357 | if (ccd == NULL) | |
358 | return; | |
359 | ||
360 | /* delete the iou's memory registration */ | |
361 | if ((ret = rpma_mr_dereg(&ccd->orig_mr))) | |
362 | librpma_td_verror(td, ret, "rpma_mr_dereg"); | |
363 | /* delete the iou's memory registration */ | |
364 | if ((ret = rpma_mr_remote_delete(&ccd->server_mr))) | |
365 | librpma_td_verror(td, ret, "rpma_mr_remote_delete"); | |
366 | /* initiate disconnection */ | |
367 | if ((ret = rpma_conn_disconnect(ccd->conn))) | |
368 | librpma_td_verror(td, ret, "rpma_conn_disconnect"); | |
369 | /* wait for disconnection to end up */ | |
370 | if ((ret = rpma_conn_next_event(ccd->conn, &ev))) { | |
371 | librpma_td_verror(td, ret, "rpma_conn_next_event"); | |
372 | } else if (ev != RPMA_CONN_CLOSED) { | |
373 | log_err( | |
374 | "client_cleanup received an unexpected event (%s != RPMA_CONN_CLOSED)\n", | |
375 | rpma_utils_conn_event_2str(ev)); | |
376 | } | |
377 | /* delete the connection */ | |
378 | if ((ret = rpma_conn_delete(&ccd->conn))) | |
379 | librpma_td_verror(td, ret, "rpma_conn_delete"); | |
380 | /* delete the peer */ | |
381 | if ((ret = rpma_peer_delete(&ccd->peer))) | |
382 | librpma_td_verror(td, ret, "rpma_peer_delete"); | |
383 | /* free the software queues */ | |
384 | free(ccd->io_us_queued); | |
385 | free(ccd->io_us_flight); | |
386 | free(ccd->io_us_completed); | |
387 | free(ccd); | |
388 | td->io_ops_data = NULL; /* zero ccd */ | |
389 | } | |
390 | ||
391 | int librpma_fio_file_nop(struct thread_data *td, struct fio_file *f) | |
392 | { | |
393 | /* NOP */ | |
394 | return 0; | |
395 | } | |
396 | ||
397 | int librpma_fio_client_post_init(struct thread_data *td) | |
398 | { | |
399 | struct librpma_fio_client_data *ccd = td->io_ops_data; | |
400 | size_t io_us_size; | |
401 | int ret; | |
402 | ||
403 | /* | |
404 | * td->orig_buffer is not aligned. The engine requires aligned io_us | |
fc002f14 | 405 | * so FIO aligns up the address using the formula below. |
e4c4625f JM |
406 | */ |
407 | ccd->orig_buffer_aligned = PTR_ALIGN(td->orig_buffer, page_mask) + | |
408 | td->o.mem_align; | |
409 | ||
410 | /* | |
411 | * td->orig_buffer_size beside the space really consumed by io_us | |
412 | * has paddings which can be omitted for the memory registration. | |
413 | */ | |
414 | io_us_size = (unsigned long long)td_max_bs(td) * | |
415 | (unsigned long long)td->o.iodepth; | |
416 | ||
417 | if ((ret = rpma_mr_reg(ccd->peer, ccd->orig_buffer_aligned, io_us_size, | |
418 | RPMA_MR_USAGE_READ_DST | RPMA_MR_USAGE_READ_SRC | | |
419 | RPMA_MR_USAGE_WRITE_DST | RPMA_MR_USAGE_WRITE_SRC | | |
420 | RPMA_MR_USAGE_FLUSH_TYPE_PERSISTENT, &ccd->orig_mr))) | |
421 | librpma_td_verror(td, ret, "rpma_mr_reg"); | |
422 | return ret; | |
423 | } | |
424 | ||
425 | int librpma_fio_client_get_file_size(struct thread_data *td, | |
426 | struct fio_file *f) | |
427 | { | |
428 | struct librpma_fio_client_data *ccd = td->io_ops_data; | |
429 | ||
430 | f->real_file_size = ccd->ws_size; | |
431 | fio_file_set_size_known(f); | |
432 | ||
433 | return 0; | |
434 | } | |
435 | ||
436 | static enum fio_q_status client_queue_sync(struct thread_data *td, | |
437 | struct io_u *io_u) | |
438 | { | |
439 | struct librpma_fio_client_data *ccd = td->io_ops_data; | |
4ef7dd21 | 440 | struct ibv_wc wc; |
e4c4625f JM |
441 | unsigned io_u_index; |
442 | int ret; | |
443 | ||
444 | /* execute io_u */ | |
445 | if (io_u->ddir == DDIR_READ) { | |
446 | /* post an RDMA read operation */ | |
447 | if (librpma_fio_client_io_read(td, io_u, | |
448 | RPMA_F_COMPLETION_ALWAYS)) | |
449 | goto err; | |
450 | } else if (io_u->ddir == DDIR_WRITE) { | |
451 | /* post an RDMA write operation */ | |
452 | if (librpma_fio_client_io_write(td, io_u)) | |
453 | goto err; | |
454 | if (ccd->flush(td, io_u, io_u, io_u->xfer_buflen)) | |
455 | goto err; | |
456 | } else { | |
457 | log_err("unsupported IO mode: %s\n", io_ddir_name(io_u->ddir)); | |
458 | goto err; | |
459 | } | |
460 | ||
461 | do { | |
462 | /* get a completion */ | |
4ef7dd21 | 463 | ret = rpma_cq_get_wc(ccd->cq, 1, &wc, NULL); |
e4c4625f JM |
464 | if (ret == RPMA_E_NO_COMPLETION) { |
465 | /* lack of completion is not an error */ | |
466 | continue; | |
467 | } else if (ret != 0) { | |
468 | /* an error occurred */ | |
4ef7dd21 | 469 | librpma_td_verror(td, ret, "rpma_cq_get_wc"); |
e4c4625f JM |
470 | goto err; |
471 | } | |
472 | ||
473 | /* if io_us has completed with an error */ | |
4ef7dd21 | 474 | if (wc.status != IBV_WC_SUCCESS) |
e4c4625f JM |
475 | goto err; |
476 | ||
4ef7dd21 | 477 | if (wc.opcode == IBV_WC_SEND) |
e4c4625f JM |
478 | ++ccd->op_send_completed; |
479 | else { | |
4ef7dd21 | 480 | if (wc.opcode == IBV_WC_RECV) |
e4c4625f JM |
481 | ++ccd->op_recv_completed; |
482 | ||
483 | break; | |
484 | } | |
485 | } while (1); | |
486 | ||
4ef7dd21 | 487 | if (ccd->get_io_u_index(&wc, &io_u_index) != 1) |
e4c4625f JM |
488 | goto err; |
489 | ||
490 | if (io_u->index != io_u_index) { | |
491 | log_err( | |
492 | "no matching io_u for received completion found (io_u_index=%u)\n", | |
493 | io_u_index); | |
494 | goto err; | |
495 | } | |
496 | ||
497 | /* make sure all SENDs are completed before exit - clean up SQ */ | |
498 | if (librpma_fio_client_io_complete_all_sends(td)) | |
499 | goto err; | |
500 | ||
501 | return FIO_Q_COMPLETED; | |
502 | ||
503 | err: | |
504 | io_u->error = -1; | |
505 | return FIO_Q_COMPLETED; | |
506 | } | |
507 | ||
508 | enum fio_q_status librpma_fio_client_queue(struct thread_data *td, | |
509 | struct io_u *io_u) | |
510 | { | |
511 | struct librpma_fio_client_data *ccd = td->io_ops_data; | |
512 | ||
513 | if (ccd->io_u_queued_nr == (int)td->o.iodepth) | |
514 | return FIO_Q_BUSY; | |
515 | ||
516 | if (td->o.sync_io) | |
517 | return client_queue_sync(td, io_u); | |
518 | ||
519 | /* io_u -> queued[] */ | |
520 | ccd->io_us_queued[ccd->io_u_queued_nr] = io_u; | |
521 | ccd->io_u_queued_nr++; | |
522 | ||
523 | return FIO_Q_QUEUED; | |
524 | } | |
525 | ||
526 | int librpma_fio_client_commit(struct thread_data *td) | |
527 | { | |
528 | struct librpma_fio_client_data *ccd = td->io_ops_data; | |
529 | int flags = RPMA_F_COMPLETION_ON_ERROR; | |
530 | struct timespec now; | |
531 | bool fill_time; | |
532 | int i; | |
533 | struct io_u *flush_first_io_u = NULL; | |
534 | unsigned long long int flush_len = 0; | |
535 | ||
536 | if (!ccd->io_us_queued) | |
537 | return -1; | |
538 | ||
539 | /* execute all io_us from queued[] */ | |
540 | for (i = 0; i < ccd->io_u_queued_nr; i++) { | |
541 | struct io_u *io_u = ccd->io_us_queued[i]; | |
542 | ||
543 | if (io_u->ddir == DDIR_READ) { | |
544 | if (i + 1 == ccd->io_u_queued_nr || | |
545 | ccd->io_us_queued[i + 1]->ddir == DDIR_WRITE) | |
546 | flags = RPMA_F_COMPLETION_ALWAYS; | |
547 | /* post an RDMA read operation */ | |
548 | if (librpma_fio_client_io_read(td, io_u, flags)) | |
549 | return -1; | |
550 | } else if (io_u->ddir == DDIR_WRITE) { | |
551 | /* post an RDMA write operation */ | |
552 | if (librpma_fio_client_io_write(td, io_u)) | |
553 | return -1; | |
554 | ||
555 | /* cache the first io_u in the sequence */ | |
556 | if (flush_first_io_u == NULL) | |
557 | flush_first_io_u = io_u; | |
558 | ||
559 | /* | |
560 | * the flush length is the sum of all io_u's creating | |
561 | * the sequence | |
562 | */ | |
563 | flush_len += io_u->xfer_buflen; | |
564 | ||
565 | /* | |
566 | * if io_u's are random the rpma_flush is required | |
567 | * after each one of them | |
568 | */ | |
569 | if (!td_random(td)) { | |
570 | /* | |
571 | * When the io_u's are sequential and | |
572 | * the current io_u is not the last one and | |
573 | * the next one is also a write operation | |
574 | * the flush can be postponed by one io_u and | |
575 | * cover all of them which build a continuous | |
576 | * sequence. | |
577 | */ | |
578 | if ((i + 1 < ccd->io_u_queued_nr) && | |
579 | (ccd->io_us_queued[i + 1]->ddir == DDIR_WRITE)) | |
580 | continue; | |
581 | } | |
582 | ||
583 | /* flush all writes which build a continuous sequence */ | |
584 | if (ccd->flush(td, flush_first_io_u, io_u, flush_len)) | |
585 | return -1; | |
586 | ||
587 | /* | |
588 | * reset the flush parameters in preparation for | |
589 | * the next one | |
590 | */ | |
591 | flush_first_io_u = NULL; | |
592 | flush_len = 0; | |
593 | } else { | |
594 | log_err("unsupported IO mode: %s\n", | |
595 | io_ddir_name(io_u->ddir)); | |
596 | return -1; | |
597 | } | |
598 | } | |
599 | ||
2b82135e | 600 | if ((fill_time = fio_fill_issue_time(td))) { |
e4c4625f JM |
601 | fio_gettime(&now, NULL); |
602 | ||
2b82135e VF |
603 | /* |
604 | * only used for iolog | |
605 | */ | |
606 | if (td->o.read_iolog_file) | |
607 | memcpy(&td->last_issue, &now, sizeof(now)); | |
608 | ||
609 | } | |
e4c4625f JM |
610 | /* move executed io_us from queued[] to flight[] */ |
611 | for (i = 0; i < ccd->io_u_queued_nr; i++) { | |
612 | struct io_u *io_u = ccd->io_us_queued[i]; | |
613 | ||
614 | /* FIO does not do this if the engine is asynchronous */ | |
615 | if (fill_time) | |
616 | memcpy(&io_u->issue_time, &now, sizeof(now)); | |
617 | ||
618 | /* move executed io_us from queued[] to flight[] */ | |
619 | ccd->io_us_flight[ccd->io_u_flight_nr] = io_u; | |
620 | ccd->io_u_flight_nr++; | |
621 | ||
622 | /* | |
623 | * FIO says: | |
624 | * If an engine has the commit hook | |
625 | * it has to call io_u_queued() itself. | |
626 | */ | |
627 | io_u_queued(td, io_u); | |
628 | } | |
629 | ||
630 | /* FIO does not do this if an engine has the commit hook. */ | |
631 | io_u_mark_submit(td, ccd->io_u_queued_nr); | |
632 | ccd->io_u_queued_nr = 0; | |
633 | ||
634 | return 0; | |
635 | } | |
636 | ||
637 | /* | |
638 | * RETURN VALUE | |
639 | * - > 0 - a number of completed io_us | |
640 | * - 0 - when no complicitions received | |
641 | * - (-1) - when an error occurred | |
642 | */ | |
643 | static int client_getevent_process(struct thread_data *td) | |
644 | { | |
645 | struct librpma_fio_client_data *ccd = td->io_ops_data; | |
4ef7dd21 OS |
646 | struct ibv_wc wc; |
647 | /* io_u->index of completed io_u (wc.wr_id) */ | |
e4c4625f JM |
648 | unsigned int io_u_index; |
649 | /* # of completed io_us */ | |
650 | int cmpl_num = 0; | |
651 | /* helpers */ | |
652 | struct io_u *io_u; | |
653 | int i; | |
654 | int ret; | |
655 | ||
656 | /* get a completion */ | |
4ef7dd21 | 657 | if ((ret = rpma_cq_get_wc(ccd->cq, 1, &wc, NULL))) { |
e4c4625f JM |
658 | /* lack of completion is not an error */ |
659 | if (ret == RPMA_E_NO_COMPLETION) { | |
660 | /* lack of completion is not an error */ | |
661 | return 0; | |
662 | } | |
663 | ||
664 | /* an error occurred */ | |
4ef7dd21 | 665 | librpma_td_verror(td, ret, "rpma_cq_get_wc"); |
e4c4625f JM |
666 | return -1; |
667 | } | |
668 | ||
669 | /* if io_us has completed with an error */ | |
4ef7dd21 OS |
670 | if (wc.status != IBV_WC_SUCCESS) { |
671 | td->error = wc.status; | |
e4c4625f JM |
672 | return -1; |
673 | } | |
674 | ||
4ef7dd21 | 675 | if (wc.opcode == IBV_WC_SEND) |
e4c4625f | 676 | ++ccd->op_send_completed; |
4ef7dd21 | 677 | else if (wc.opcode == IBV_WC_RECV) |
e4c4625f JM |
678 | ++ccd->op_recv_completed; |
679 | ||
4ef7dd21 | 680 | if ((ret = ccd->get_io_u_index(&wc, &io_u_index)) != 1) |
e4c4625f JM |
681 | return ret; |
682 | ||
683 | /* look for an io_u being completed */ | |
684 | for (i = 0; i < ccd->io_u_flight_nr; ++i) { | |
685 | if (ccd->io_us_flight[i]->index == io_u_index) { | |
686 | cmpl_num = i + 1; | |
687 | break; | |
688 | } | |
689 | } | |
690 | ||
691 | /* if no matching io_u has been found */ | |
692 | if (cmpl_num == 0) { | |
693 | log_err( | |
694 | "no matching io_u for received completion found (io_u_index=%u)\n", | |
695 | io_u_index); | |
696 | return -1; | |
697 | } | |
698 | ||
699 | /* move completed io_us to the completed in-memory queue */ | |
700 | for (i = 0; i < cmpl_num; ++i) { | |
701 | /* get and prepare io_u */ | |
702 | io_u = ccd->io_us_flight[i]; | |
703 | ||
704 | /* append to the queue */ | |
705 | ccd->io_us_completed[ccd->io_u_completed_nr] = io_u; | |
706 | ccd->io_u_completed_nr++; | |
707 | } | |
708 | ||
709 | /* remove completed io_us from the flight queue */ | |
710 | for (i = cmpl_num; i < ccd->io_u_flight_nr; ++i) | |
711 | ccd->io_us_flight[i - cmpl_num] = ccd->io_us_flight[i]; | |
712 | ccd->io_u_flight_nr -= cmpl_num; | |
713 | ||
714 | return cmpl_num; | |
715 | } | |
716 | ||
717 | int librpma_fio_client_getevents(struct thread_data *td, unsigned int min, | |
718 | unsigned int max, const struct timespec *t) | |
719 | { | |
720 | struct librpma_fio_client_data *ccd = td->io_ops_data; | |
721 | /* total # of completed io_us */ | |
722 | int cmpl_num_total = 0; | |
723 | /* # of completed io_us from a single event */ | |
724 | int cmpl_num; | |
725 | ||
726 | do { | |
727 | cmpl_num = client_getevent_process(td); | |
728 | if (cmpl_num > 0) { | |
729 | /* new completions collected */ | |
730 | cmpl_num_total += cmpl_num; | |
731 | } else if (cmpl_num == 0) { | |
732 | /* | |
733 | * It is required to make sure that CQEs for SENDs | |
734 | * will flow at least at the same pace as CQEs for RECVs. | |
735 | */ | |
736 | if (cmpl_num_total >= min && | |
737 | ccd->op_send_completed >= ccd->op_recv_completed) | |
738 | break; | |
739 | ||
740 | /* | |
741 | * To reduce CPU consumption one can use | |
4ef7dd21 | 742 | * the rpma_cq_wait() function. |
e4c4625f JM |
743 | * Note this greatly increase the latency |
744 | * and make the results less stable. | |
745 | * The bandwidth stays more or less the same. | |
746 | */ | |
747 | } else { | |
748 | /* an error occurred */ | |
749 | return -1; | |
750 | } | |
751 | ||
752 | /* | |
753 | * The expected max can be exceeded if CQEs for RECVs will come up | |
754 | * faster than CQEs for SENDs. But it is required to make sure CQEs for | |
755 | * SENDs will flow at least at the same pace as CQEs for RECVs. | |
756 | */ | |
757 | } while (cmpl_num_total < max || | |
758 | ccd->op_send_completed < ccd->op_recv_completed); | |
759 | ||
760 | /* | |
761 | * All posted SENDs are completed and RECVs for them (responses) are | |
762 | * completed. This is the initial situation so the counters are reset. | |
763 | */ | |
764 | if (ccd->op_send_posted == ccd->op_send_completed && | |
765 | ccd->op_send_completed == ccd->op_recv_completed) { | |
766 | ccd->op_send_posted = 0; | |
767 | ccd->op_send_completed = 0; | |
768 | ccd->op_recv_completed = 0; | |
769 | } | |
770 | ||
771 | return cmpl_num_total; | |
772 | } | |
773 | ||
774 | struct io_u *librpma_fio_client_event(struct thread_data *td, int event) | |
775 | { | |
776 | struct librpma_fio_client_data *ccd = td->io_ops_data; | |
777 | struct io_u *io_u; | |
778 | int i; | |
779 | ||
780 | /* get the first io_u from the queue */ | |
781 | io_u = ccd->io_us_completed[0]; | |
782 | ||
783 | /* remove the first io_u from the queue */ | |
784 | for (i = 1; i < ccd->io_u_completed_nr; ++i) | |
785 | ccd->io_us_completed[i - 1] = ccd->io_us_completed[i]; | |
786 | ccd->io_u_completed_nr--; | |
787 | ||
788 | dprint_io_u(io_u, "client_event"); | |
789 | ||
790 | return io_u; | |
791 | } | |
792 | ||
793 | char *librpma_fio_client_errdetails(struct io_u *io_u) | |
794 | { | |
795 | /* get the string representation of an error */ | |
796 | enum ibv_wc_status status = io_u->error; | |
797 | const char *status_str = ibv_wc_status_str(status); | |
798 | ||
799 | char *details = strdup(status_str); | |
800 | if (details == NULL) { | |
801 | fprintf(stderr, "Error: %s\n", status_str); | |
802 | fprintf(stderr, "Fatal error: out of memory. Aborting.\n"); | |
803 | abort(); | |
804 | } | |
805 | ||
806 | /* FIO frees the returned string when it becomes obsolete */ | |
807 | return details; | |
808 | } | |
809 | ||
810 | int librpma_fio_server_init(struct thread_data *td) | |
811 | { | |
812 | struct librpma_fio_options_values *o = td->eo; | |
813 | struct librpma_fio_server_data *csd; | |
814 | struct ibv_context *dev = NULL; | |
815 | enum rpma_log_level log_level_aux = RPMA_LOG_LEVEL_WARNING; | |
816 | int ret = -1; | |
817 | ||
818 | /* --debug=net sets RPMA_LOG_THRESHOLD_AUX to RPMA_LOG_LEVEL_INFO */ | |
819 | #ifdef FIO_INC_DEBUG | |
820 | if ((1UL << FD_NET) & fio_debug) | |
821 | log_level_aux = RPMA_LOG_LEVEL_INFO; | |
822 | #endif | |
823 | ||
824 | /* configure logging thresholds to see more details */ | |
825 | rpma_log_set_threshold(RPMA_LOG_THRESHOLD, RPMA_LOG_LEVEL_INFO); | |
826 | rpma_log_set_threshold(RPMA_LOG_THRESHOLD_AUX, log_level_aux); | |
827 | ||
828 | ||
829 | /* obtain an IBV context for a remote IP address */ | |
830 | if ((ret = rpma_utils_get_ibv_context(o->server_ip, | |
831 | RPMA_UTIL_IBV_CONTEXT_LOCAL, &dev))) { | |
832 | librpma_td_verror(td, ret, "rpma_utils_get_ibv_context"); | |
833 | return -1; | |
834 | } | |
835 | ||
836 | /* allocate server's data */ | |
837 | csd = calloc(1, sizeof(*csd)); | |
838 | if (csd == NULL) { | |
839 | td_verror(td, errno, "calloc"); | |
840 | return -1; | |
841 | } | |
842 | ||
843 | /* create a new peer object */ | |
844 | if ((ret = rpma_peer_new(dev, &csd->peer))) { | |
845 | librpma_td_verror(td, ret, "rpma_peer_new"); | |
846 | goto err_free_csd; | |
847 | } | |
848 | ||
849 | td->io_ops_data = csd; | |
850 | ||
851 | return 0; | |
852 | ||
853 | err_free_csd: | |
854 | free(csd); | |
855 | ||
856 | return -1; | |
857 | } | |
858 | ||
859 | void librpma_fio_server_cleanup(struct thread_data *td) | |
860 | { | |
861 | struct librpma_fio_server_data *csd = td->io_ops_data; | |
862 | int ret; | |
863 | ||
864 | if (csd == NULL) | |
865 | return; | |
866 | ||
867 | /* free the peer */ | |
868 | if ((ret = rpma_peer_delete(&csd->peer))) | |
869 | librpma_td_verror(td, ret, "rpma_peer_delete"); | |
870 | ||
871 | free(csd); | |
872 | } | |
873 | ||
874 | int librpma_fio_server_open_file(struct thread_data *td, struct fio_file *f, | |
875 | struct rpma_conn_cfg *cfg) | |
876 | { | |
877 | struct librpma_fio_server_data *csd = td->io_ops_data; | |
878 | struct librpma_fio_options_values *o = td->eo; | |
879 | enum rpma_conn_event conn_event = RPMA_CONN_UNDEFINED; | |
880 | struct librpma_fio_workspace ws = {0}; | |
881 | struct rpma_conn_private_data pdata; | |
882 | uint32_t max_msg_num; | |
883 | struct rpma_conn_req *conn_req; | |
884 | struct rpma_conn *conn; | |
885 | struct rpma_mr_local *mr; | |
886 | char port_td[LIBRPMA_FIO_PORT_STR_LEN_MAX]; | |
887 | struct rpma_ep *ep; | |
888 | size_t mem_size = td->o.size; | |
889 | size_t mr_desc_size; | |
890 | void *ws_ptr; | |
a6becc33 | 891 | bool is_dram; |
e4c4625f JM |
892 | int usage_mem_type; |
893 | int ret; | |
894 | ||
895 | if (!f->file_name) { | |
896 | log_err("fio: filename is not set\n"); | |
897 | return -1; | |
898 | } | |
899 | ||
900 | /* start a listening endpoint at addr:port */ | |
901 | if (librpma_fio_td_port(o->port, td, port_td)) | |
902 | return -1; | |
903 | ||
904 | if ((ret = rpma_ep_listen(csd->peer, o->server_ip, port_td, &ep))) { | |
905 | librpma_td_verror(td, ret, "rpma_ep_listen"); | |
906 | return -1; | |
907 | } | |
908 | ||
a6becc33 WL |
909 | is_dram = !strcmp(f->file_name, "malloc"); |
910 | if (is_dram) { | |
e4c4625f JM |
911 | /* allocation from DRAM using posix_memalign() */ |
912 | ws_ptr = librpma_fio_allocate_dram(td, mem_size, &csd->mem); | |
913 | usage_mem_type = RPMA_MR_USAGE_FLUSH_TYPE_VISIBILITY; | |
914 | } else { | |
915 | /* allocation from PMEM using pmem_map_file() */ | |
a6becc33 | 916 | ws_ptr = librpma_fio_allocate_pmem(td, f, mem_size, &csd->mem); |
e4c4625f JM |
917 | usage_mem_type = RPMA_MR_USAGE_FLUSH_TYPE_PERSISTENT; |
918 | } | |
919 | ||
920 | if (ws_ptr == NULL) | |
921 | goto err_ep_shutdown; | |
922 | ||
923 | f->real_file_size = mem_size; | |
924 | ||
925 | if ((ret = rpma_mr_reg(csd->peer, ws_ptr, mem_size, | |
926 | RPMA_MR_USAGE_READ_DST | RPMA_MR_USAGE_READ_SRC | | |
927 | RPMA_MR_USAGE_WRITE_DST | RPMA_MR_USAGE_WRITE_SRC | | |
928 | usage_mem_type, &mr))) { | |
929 | librpma_td_verror(td, ret, "rpma_mr_reg"); | |
930 | goto err_free; | |
931 | } | |
932 | ||
a6becc33 WL |
933 | if (!is_dram && f->filetype == FIO_TYPE_FILE) { |
934 | ret = rpma_mr_advise(mr, 0, mem_size, | |
935 | IBV_ADVISE_MR_ADVICE_PREFETCH_WRITE, | |
936 | IBV_ADVISE_MR_FLAG_FLUSH); | |
937 | if (ret) { | |
938 | librpma_td_verror(td, ret, "rpma_mr_advise"); | |
939 | /* an invalid argument is an error */ | |
940 | if (ret == RPMA_E_INVAL) | |
941 | goto err_mr_dereg; | |
942 | ||
943 | /* log_err used instead of log_info to avoid corruption of the JSON output */ | |
944 | log_err("Note: having rpma_mr_advise(3) failed because of RPMA_E_NOSUPP or RPMA_E_PROVIDER may come with a performance penalty, but it is not a blocker for running the benchmark.\n"); | |
945 | } | |
946 | } | |
947 | ||
e4c4625f JM |
948 | /* get size of the memory region's descriptor */ |
949 | if ((ret = rpma_mr_get_descriptor_size(mr, &mr_desc_size))) { | |
950 | librpma_td_verror(td, ret, "rpma_mr_get_descriptor_size"); | |
951 | goto err_mr_dereg; | |
952 | } | |
953 | ||
954 | /* verify size of the memory region's descriptor */ | |
955 | if (mr_desc_size > LIBRPMA_FIO_DESCRIPTOR_MAX_SIZE) { | |
956 | log_err( | |
957 | "size of the memory region's descriptor is too big (max=%i)\n", | |
958 | LIBRPMA_FIO_DESCRIPTOR_MAX_SIZE); | |
959 | goto err_mr_dereg; | |
960 | } | |
961 | ||
962 | /* get the memory region's descriptor */ | |
963 | if ((ret = rpma_mr_get_descriptor(mr, &ws.descriptor[0]))) { | |
964 | librpma_td_verror(td, ret, "rpma_mr_get_descriptor"); | |
965 | goto err_mr_dereg; | |
966 | } | |
967 | ||
968 | if (cfg != NULL) { | |
969 | if ((ret = rpma_conn_cfg_get_rq_size(cfg, &max_msg_num))) { | |
970 | librpma_td_verror(td, ret, "rpma_conn_cfg_get_rq_size"); | |
971 | goto err_mr_dereg; | |
972 | } | |
973 | ||
974 | /* verify whether iodepth fits into uint16_t */ | |
975 | if (max_msg_num > UINT16_MAX) { | |
976 | log_err("fio: iodepth too big (%u > %u)\n", | |
977 | max_msg_num, UINT16_MAX); | |
978 | return -1; | |
979 | } | |
980 | ||
981 | ws.max_msg_num = max_msg_num; | |
982 | } | |
983 | ||
984 | /* prepare a workspace description */ | |
985 | ws.direct_write_to_pmem = o->direct_write_to_pmem; | |
986 | ws.mr_desc_size = mr_desc_size; | |
987 | pdata.ptr = &ws; | |
988 | pdata.len = sizeof(ws); | |
989 | ||
990 | /* receive an incoming connection request */ | |
991 | if ((ret = rpma_ep_next_conn_req(ep, cfg, &conn_req))) { | |
992 | librpma_td_verror(td, ret, "rpma_ep_next_conn_req"); | |
993 | goto err_mr_dereg; | |
994 | } | |
995 | ||
996 | if (csd->prepare_connection && csd->prepare_connection(td, conn_req)) | |
997 | goto err_req_delete; | |
998 | ||
999 | /* accept the connection request and obtain the connection object */ | |
1000 | if ((ret = rpma_conn_req_connect(&conn_req, &pdata, &conn))) { | |
1001 | librpma_td_verror(td, ret, "rpma_conn_req_connect"); | |
1002 | goto err_req_delete; | |
1003 | } | |
1004 | ||
1005 | /* wait for the connection to be established */ | |
1006 | if ((ret = rpma_conn_next_event(conn, &conn_event))) { | |
1007 | librpma_td_verror(td, ret, "rpma_conn_next_event"); | |
1008 | goto err_conn_delete; | |
1009 | } else if (conn_event != RPMA_CONN_ESTABLISHED) { | |
1010 | log_err("rpma_conn_next_event returned an unexptected event\n"); | |
1011 | goto err_conn_delete; | |
1012 | } | |
1013 | ||
1014 | /* end-point is no longer needed */ | |
1015 | (void) rpma_ep_shutdown(&ep); | |
1016 | ||
1017 | csd->ws_mr = mr; | |
1018 | csd->ws_ptr = ws_ptr; | |
1019 | csd->conn = conn; | |
1020 | ||
4ef7dd21 OS |
1021 | /* get the connection's main CQ */ |
1022 | if ((ret = rpma_conn_get_cq(csd->conn, &csd->cq))) { | |
1023 | librpma_td_verror(td, ret, "rpma_conn_get_cq"); | |
1024 | goto err_conn_delete; | |
1025 | } | |
1026 | ||
e4c4625f JM |
1027 | return 0; |
1028 | ||
1029 | err_conn_delete: | |
1030 | (void) rpma_conn_delete(&conn); | |
1031 | ||
1032 | err_req_delete: | |
1033 | (void) rpma_conn_req_delete(&conn_req); | |
1034 | ||
1035 | err_mr_dereg: | |
1036 | (void) rpma_mr_dereg(&mr); | |
1037 | ||
1038 | err_free: | |
1039 | librpma_fio_free(&csd->mem); | |
1040 | ||
1041 | err_ep_shutdown: | |
1042 | (void) rpma_ep_shutdown(&ep); | |
1043 | ||
1044 | return -1; | |
1045 | } | |
1046 | ||
1047 | int librpma_fio_server_close_file(struct thread_data *td, struct fio_file *f) | |
1048 | { | |
1049 | struct librpma_fio_server_data *csd = td->io_ops_data; | |
1050 | enum rpma_conn_event conn_event = RPMA_CONN_UNDEFINED; | |
1051 | int rv = 0; | |
1052 | int ret; | |
1053 | ||
1054 | /* wait for the connection to be closed */ | |
1055 | ret = rpma_conn_next_event(csd->conn, &conn_event); | |
1056 | if (!ret && conn_event != RPMA_CONN_CLOSED) { | |
1057 | log_err("rpma_conn_next_event returned an unexptected event\n"); | |
1058 | rv = -1; | |
1059 | } | |
1060 | ||
1061 | if ((ret = rpma_conn_disconnect(csd->conn))) { | |
1062 | librpma_td_verror(td, ret, "rpma_conn_disconnect"); | |
1063 | rv = -1; | |
1064 | } | |
1065 | ||
1066 | if ((ret = rpma_conn_delete(&csd->conn))) { | |
1067 | librpma_td_verror(td, ret, "rpma_conn_delete"); | |
1068 | rv = -1; | |
1069 | } | |
1070 | ||
1071 | if ((ret = rpma_mr_dereg(&csd->ws_mr))) { | |
1072 | librpma_td_verror(td, ret, "rpma_mr_dereg"); | |
1073 | rv = -1; | |
1074 | } | |
1075 | ||
1076 | librpma_fio_free(&csd->mem); | |
1077 | ||
1078 | return rv; | |
1079 | } |