1 /*- 2 * BSD LICENSE 3 * 4 * Copyright (c) Intel Corporation. All rights reserved. 5 * Copyright (c) 2018-2020 Mellanox Technologies LTD. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 11 * * Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * * Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in 15 * the documentation and/or other materials provided with the 16 * distribution. 17 * * Neither the name of Intel Corporation nor the names of its 18 * contributors may be used to endorse or promote products derived 19 * from this software without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 22 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 24 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 25 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 26 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 27 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 #include "spdk/bdev.h" 35 #include "spdk/log.h" 36 #include "spdk/rpc.h" 37 #include "spdk/env.h" 38 #include "spdk/nvme.h" 39 #include "spdk/nvmf.h" 40 #include "spdk/string.h" 41 #include "spdk/util.h" 42 #include "spdk/bit_array.h" 43 44 #include "spdk_internal/log.h" 45 #include "spdk_internal/assert.h" 46 47 #include "nvmf_internal.h" 48 49 static int 50 json_write_hex_str(struct spdk_json_write_ctx *w, const void *data, size_t size) 51 { 52 static const char hex_char[16] = "0123456789ABCDEF"; 53 const uint8_t *buf = data; 54 char *str, *out; 55 int rc; 56 57 str = malloc(size * 2 + 1); 58 if (str == NULL) { 59 return -1; 60 } 61 62 out = str; 63 while (size--) { 64 unsigned byte = *buf++; 65 66 out[0] = hex_char[(byte >> 4) & 0xF]; 67 out[1] = hex_char[byte & 0xF]; 68 69 out += 2; 70 } 71 *out = '\0'; 72 73 rc = spdk_json_write_string(w, str); 74 free(str); 75 76 return rc; 77 } 78 79 static int 80 hex_nybble_to_num(char c) 81 { 82 if (c >= '0' && c <= '9') { 83 return c - '0'; 84 } 85 86 if (c >= 'a' && c <= 'f') { 87 return c - 'a' + 0xA; 88 } 89 90 if (c >= 'A' && c <= 'F') { 91 return c - 'A' + 0xA; 92 } 93 94 return -1; 95 } 96 97 static int 98 hex_byte_to_num(const char *str) 99 { 100 int hi, lo; 101 102 hi = hex_nybble_to_num(str[0]); 103 if (hi < 0) { 104 return hi; 105 } 106 107 lo = hex_nybble_to_num(str[1]); 108 if (lo < 0) { 109 return lo; 110 } 111 112 return hi * 16 + lo; 113 } 114 115 static int 116 decode_hex_string_be(const char *str, uint8_t *out, size_t size) 117 { 118 size_t i; 119 120 /* Decode a string in "ABCDEF012345" format to its binary representation */ 121 for (i = 0; i < size; i++) { 122 int num = hex_byte_to_num(str); 123 124 if (num < 0) { 125 /* Invalid hex byte or end of string */ 126 return -1; 127 } 128 129 out[i] = (uint8_t)num; 130 str += 2; 131 } 132 133 if (i != size || *str != '\0') { 134 /* Length mismatch */ 135 return -1; 136 } 137 138 return 0; 139 } 140 141 static int 142 decode_ns_nguid(const struct spdk_json_val *val, void *out) 143 { 144 char *str = NULL; 145 int rc; 146 147 rc = spdk_json_decode_string(val, &str); 148 if (rc == 0) { 149 /* 16-byte NGUID */ 150 rc = decode_hex_string_be(str, out, 16); 151 } 152 153 free(str); 154 return rc; 155 } 156 157 static int 158 decode_ns_eui64(const struct spdk_json_val *val, void *out) 159 { 160 char *str = NULL; 161 int rc; 162 163 rc = spdk_json_decode_string(val, &str); 164 if (rc == 0) { 165 /* 8-byte EUI-64 */ 166 rc = decode_hex_string_be(str, out, 8); 167 } 168 169 free(str); 170 return rc; 171 } 172 173 static int 174 decode_ns_uuid(const struct spdk_json_val *val, void *out) 175 { 176 char *str = NULL; 177 int rc; 178 179 rc = spdk_json_decode_string(val, &str); 180 if (rc == 0) { 181 rc = spdk_uuid_parse(out, str); 182 } 183 184 free(str); 185 return rc; 186 } 187 188 struct rpc_get_subsystem { 189 char *tgt_name; 190 }; 191 192 static const struct spdk_json_object_decoder rpc_get_subsystem_decoders[] = { 193 {"tgt_name", offsetof(struct rpc_get_subsystem, tgt_name), spdk_json_decode_string, true}, 194 }; 195 196 static void 197 dump_nvmf_subsystem(struct spdk_json_write_ctx *w, struct spdk_nvmf_subsystem *subsystem) 198 { 199 struct spdk_nvmf_host *host; 200 struct spdk_nvmf_subsystem_listener *listener; 201 202 spdk_json_write_object_begin(w); 203 204 spdk_json_write_named_string(w, "nqn", spdk_nvmf_subsystem_get_nqn(subsystem)); 205 spdk_json_write_name(w, "subtype"); 206 if (spdk_nvmf_subsystem_get_type(subsystem) == SPDK_NVMF_SUBTYPE_NVME) { 207 spdk_json_write_string(w, "NVMe"); 208 } else { 209 spdk_json_write_string(w, "Discovery"); 210 } 211 212 spdk_json_write_named_array_begin(w, "listen_addresses"); 213 214 for (listener = spdk_nvmf_subsystem_get_first_listener(subsystem); listener != NULL; 215 listener = spdk_nvmf_subsystem_get_next_listener(subsystem, listener)) { 216 const struct spdk_nvme_transport_id *trid; 217 const char *adrfam; 218 219 trid = spdk_nvmf_subsystem_listener_get_trid(listener); 220 221 spdk_json_write_object_begin(w); 222 adrfam = spdk_nvme_transport_id_adrfam_str(trid->adrfam); 223 if (adrfam == NULL) { 224 adrfam = "unknown"; 225 } 226 /* NOTE: "transport" is kept for compatibility; new code should use "trtype" */ 227 spdk_json_write_named_string(w, "transport", trid->trstring); 228 spdk_json_write_named_string(w, "trtype", trid->trstring); 229 spdk_json_write_named_string(w, "adrfam", adrfam); 230 spdk_json_write_named_string(w, "traddr", trid->traddr); 231 spdk_json_write_named_string(w, "trsvcid", trid->trsvcid); 232 spdk_json_write_object_end(w); 233 } 234 spdk_json_write_array_end(w); 235 236 spdk_json_write_named_bool(w, "allow_any_host", 237 spdk_nvmf_subsystem_get_allow_any_host(subsystem)); 238 239 spdk_json_write_named_array_begin(w, "hosts"); 240 241 for (host = spdk_nvmf_subsystem_get_first_host(subsystem); host != NULL; 242 host = spdk_nvmf_subsystem_get_next_host(subsystem, host)) { 243 spdk_json_write_object_begin(w); 244 spdk_json_write_named_string(w, "nqn", spdk_nvmf_host_get_nqn(host)); 245 spdk_json_write_object_end(w); 246 } 247 spdk_json_write_array_end(w); 248 249 if (spdk_nvmf_subsystem_get_type(subsystem) == SPDK_NVMF_SUBTYPE_NVME) { 250 struct spdk_nvmf_ns *ns; 251 struct spdk_nvmf_ns_opts ns_opts; 252 uint32_t max_namespaces; 253 254 spdk_json_write_named_string(w, "serial_number", spdk_nvmf_subsystem_get_sn(subsystem)); 255 256 spdk_json_write_named_string(w, "model_number", spdk_nvmf_subsystem_get_mn(subsystem)); 257 258 max_namespaces = spdk_nvmf_subsystem_get_max_namespaces(subsystem); 259 if (max_namespaces != 0) { 260 spdk_json_write_named_uint32(w, "max_namespaces", max_namespaces); 261 } 262 263 spdk_json_write_named_array_begin(w, "namespaces"); 264 for (ns = spdk_nvmf_subsystem_get_first_ns(subsystem); ns != NULL; 265 ns = spdk_nvmf_subsystem_get_next_ns(subsystem, ns)) { 266 spdk_nvmf_ns_get_opts(ns, &ns_opts, sizeof(ns_opts)); 267 spdk_json_write_object_begin(w); 268 spdk_json_write_named_int32(w, "nsid", spdk_nvmf_ns_get_id(ns)); 269 spdk_json_write_named_string(w, "bdev_name", 270 spdk_bdev_get_name(spdk_nvmf_ns_get_bdev(ns))); 271 /* NOTE: "name" is kept for compatibility only - new code should use bdev_name. */ 272 spdk_json_write_named_string(w, "name", 273 spdk_bdev_get_name(spdk_nvmf_ns_get_bdev(ns))); 274 275 if (!spdk_mem_all_zero(ns_opts.nguid, sizeof(ns_opts.nguid))) { 276 spdk_json_write_name(w, "nguid"); 277 json_write_hex_str(w, ns_opts.nguid, sizeof(ns_opts.nguid)); 278 } 279 280 if (!spdk_mem_all_zero(ns_opts.eui64, sizeof(ns_opts.eui64))) { 281 spdk_json_write_name(w, "eui64"); 282 json_write_hex_str(w, ns_opts.eui64, sizeof(ns_opts.eui64)); 283 } 284 285 if (!spdk_mem_all_zero(&ns_opts.uuid, sizeof(ns_opts.uuid))) { 286 char uuid_str[SPDK_UUID_STRING_LEN]; 287 288 spdk_uuid_fmt_lower(uuid_str, sizeof(uuid_str), &ns_opts.uuid); 289 spdk_json_write_named_string(w, "uuid", uuid_str); 290 } 291 292 spdk_json_write_object_end(w); 293 } 294 spdk_json_write_array_end(w); 295 } 296 spdk_json_write_object_end(w); 297 } 298 299 static void 300 rpc_nvmf_get_subsystems(struct spdk_jsonrpc_request *request, 301 const struct spdk_json_val *params) 302 { 303 struct rpc_get_subsystem req = { 0 }; 304 struct spdk_json_write_ctx *w; 305 struct spdk_nvmf_subsystem *subsystem; 306 struct spdk_nvmf_tgt *tgt; 307 308 if (params) { 309 if (spdk_json_decode_object(params, rpc_get_subsystem_decoders, 310 SPDK_COUNTOF(rpc_get_subsystem_decoders), 311 &req)) { 312 SPDK_ERRLOG("spdk_json_decode_object failed\n"); 313 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid parameters"); 314 return; 315 } 316 } 317 318 tgt = spdk_nvmf_get_tgt(req.tgt_name); 319 if (!tgt) { 320 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, 321 "Unable to find a target."); 322 free(req.tgt_name); 323 return; 324 } 325 326 w = spdk_jsonrpc_begin_result(request); 327 spdk_json_write_array_begin(w); 328 subsystem = spdk_nvmf_subsystem_get_first(tgt); 329 while (subsystem) { 330 dump_nvmf_subsystem(w, subsystem); 331 subsystem = spdk_nvmf_subsystem_get_next(subsystem); 332 } 333 spdk_json_write_array_end(w); 334 spdk_jsonrpc_end_result(request, w); 335 free(req.tgt_name); 336 } 337 SPDK_RPC_REGISTER("nvmf_get_subsystems", rpc_nvmf_get_subsystems, SPDK_RPC_RUNTIME) 338 SPDK_RPC_REGISTER_ALIAS_DEPRECATED(nvmf_get_subsystems, get_nvmf_subsystems) 339 340 struct rpc_subsystem_create { 341 char *nqn; 342 char *serial_number; 343 char *model_number; 344 char *tgt_name; 345 uint32_t max_namespaces; 346 bool allow_any_host; 347 bool ana_reporting; 348 }; 349 350 static const struct spdk_json_object_decoder rpc_subsystem_create_decoders[] = { 351 {"nqn", offsetof(struct rpc_subsystem_create, nqn), spdk_json_decode_string}, 352 {"serial_number", offsetof(struct rpc_subsystem_create, serial_number), spdk_json_decode_string, true}, 353 {"model_number", offsetof(struct rpc_subsystem_create, model_number), spdk_json_decode_string, true}, 354 {"tgt_name", offsetof(struct rpc_subsystem_create, tgt_name), spdk_json_decode_string, true}, 355 {"max_namespaces", offsetof(struct rpc_subsystem_create, max_namespaces), spdk_json_decode_uint32, true}, 356 {"allow_any_host", offsetof(struct rpc_subsystem_create, allow_any_host), spdk_json_decode_bool, true}, 357 {"ana_reporting", offsetof(struct rpc_subsystem_create, ana_reporting), spdk_json_decode_bool, true}, 358 }; 359 360 static void 361 rpc_nvmf_subsystem_started(struct spdk_nvmf_subsystem *subsystem, 362 void *cb_arg, int status) 363 { 364 struct spdk_jsonrpc_request *request = cb_arg; 365 366 if (!status) { 367 struct spdk_json_write_ctx *w = spdk_jsonrpc_begin_result(request); 368 spdk_json_write_bool(w, true); 369 spdk_jsonrpc_end_result(request, w); 370 } else { 371 spdk_jsonrpc_send_error_response_fmt(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, 372 "Subsystem %s start failed", 373 subsystem->subnqn); 374 spdk_nvmf_subsystem_destroy(subsystem); 375 } 376 } 377 378 static void 379 rpc_nvmf_create_subsystem(struct spdk_jsonrpc_request *request, 380 const struct spdk_json_val *params) 381 { 382 struct rpc_subsystem_create *req; 383 struct spdk_nvmf_subsystem *subsystem = NULL; 384 struct spdk_nvmf_tgt *tgt; 385 int rc = -1; 386 387 req = calloc(1, sizeof(*req)); 388 if (!req) { 389 SPDK_ERRLOG("Memory allocation failed\n"); 390 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, 391 "Memory allocation failed"); 392 return; 393 } 394 395 if (spdk_json_decode_object(params, rpc_subsystem_create_decoders, 396 SPDK_COUNTOF(rpc_subsystem_create_decoders), 397 req)) { 398 SPDK_ERRLOG("spdk_json_decode_object failed\n"); 399 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid parameters"); 400 goto cleanup; 401 } 402 403 tgt = spdk_nvmf_get_tgt(req->tgt_name); 404 if (!tgt) { 405 SPDK_ERRLOG("Unable to find target %s\n", req->tgt_name); 406 spdk_jsonrpc_send_error_response_fmt(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, 407 "Unable to find target %s", req->tgt_name); 408 goto cleanup; 409 } 410 411 subsystem = spdk_nvmf_subsystem_create(tgt, req->nqn, SPDK_NVMF_SUBTYPE_NVME, 412 req->max_namespaces); 413 if (!subsystem) { 414 SPDK_ERRLOG("Unable to create subsystem %s\n", req->nqn); 415 spdk_jsonrpc_send_error_response_fmt(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, 416 "Unable to create subsystem %s", req->nqn); 417 goto cleanup; 418 } 419 420 if (req->serial_number) { 421 if (spdk_nvmf_subsystem_set_sn(subsystem, req->serial_number)) { 422 SPDK_ERRLOG("Subsystem %s: invalid serial number '%s'\n", req->nqn, req->serial_number); 423 spdk_jsonrpc_send_error_response_fmt(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, 424 "Invalid SN %s", req->serial_number); 425 goto cleanup; 426 } 427 } 428 429 if (req->model_number) { 430 if (spdk_nvmf_subsystem_set_mn(subsystem, req->model_number)) { 431 SPDK_ERRLOG("Subsystem %s: invalid model number '%s'\n", req->nqn, req->model_number); 432 spdk_jsonrpc_send_error_response_fmt(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, 433 "Invalid MN %s", req->model_number); 434 goto cleanup; 435 } 436 } 437 438 spdk_nvmf_subsystem_set_allow_any_host(subsystem, req->allow_any_host); 439 440 spdk_nvmf_subsystem_set_ana_reporting(subsystem, req->ana_reporting); 441 442 rc = spdk_nvmf_subsystem_start(subsystem, 443 rpc_nvmf_subsystem_started, 444 request); 445 446 cleanup: 447 free(req->nqn); 448 free(req->tgt_name); 449 free(req->serial_number); 450 free(req->model_number); 451 free(req); 452 453 if (rc && subsystem) { 454 spdk_nvmf_subsystem_destroy(subsystem); 455 } 456 } 457 SPDK_RPC_REGISTER("nvmf_create_subsystem", rpc_nvmf_create_subsystem, SPDK_RPC_RUNTIME) 458 SPDK_RPC_REGISTER_ALIAS_DEPRECATED(nvmf_create_subsystem, nvmf_subsystem_create) 459 460 struct rpc_delete_subsystem { 461 char *nqn; 462 char *tgt_name; 463 }; 464 465 static void 466 free_rpc_delete_subsystem(struct rpc_delete_subsystem *r) 467 { 468 free(r->nqn); 469 free(r->tgt_name); 470 } 471 472 static void 473 rpc_nvmf_subsystem_stopped(struct spdk_nvmf_subsystem *subsystem, 474 void *cb_arg, int status) 475 { 476 struct spdk_jsonrpc_request *request = cb_arg; 477 struct spdk_json_write_ctx *w; 478 479 nvmf_subsystem_remove_all_listeners(subsystem, true); 480 spdk_nvmf_subsystem_destroy(subsystem); 481 482 w = spdk_jsonrpc_begin_result(request); 483 spdk_json_write_bool(w, true); 484 spdk_jsonrpc_end_result(request, w); 485 } 486 487 static const struct spdk_json_object_decoder rpc_delete_subsystem_decoders[] = { 488 {"nqn", offsetof(struct rpc_delete_subsystem, nqn), spdk_json_decode_string}, 489 {"tgt_name", offsetof(struct rpc_delete_subsystem, tgt_name), spdk_json_decode_string, true}, 490 }; 491 492 static void 493 rpc_nvmf_delete_subsystem(struct spdk_jsonrpc_request *request, 494 const struct spdk_json_val *params) 495 { 496 struct rpc_delete_subsystem req = { 0 }; 497 struct spdk_nvmf_subsystem *subsystem; 498 struct spdk_nvmf_tgt *tgt; 499 500 if (spdk_json_decode_object(params, rpc_delete_subsystem_decoders, 501 SPDK_COUNTOF(rpc_delete_subsystem_decoders), 502 &req)) { 503 SPDK_ERRLOG("spdk_json_decode_object failed\n"); 504 goto invalid; 505 } 506 507 if (req.nqn == NULL) { 508 SPDK_ERRLOG("missing name param\n"); 509 goto invalid; 510 } 511 512 tgt = spdk_nvmf_get_tgt(req.tgt_name); 513 if (!tgt) { 514 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, 515 "Unable to find a target."); 516 goto invalid_custom_response; 517 } 518 519 subsystem = spdk_nvmf_tgt_find_subsystem(tgt, req.nqn); 520 if (!subsystem) { 521 goto invalid; 522 } 523 524 free_rpc_delete_subsystem(&req); 525 526 spdk_nvmf_subsystem_stop(subsystem, 527 rpc_nvmf_subsystem_stopped, 528 request); 529 530 return; 531 532 invalid: 533 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid parameters"); 534 invalid_custom_response: 535 free_rpc_delete_subsystem(&req); 536 } 537 SPDK_RPC_REGISTER("nvmf_delete_subsystem", rpc_nvmf_delete_subsystem, SPDK_RPC_RUNTIME) 538 SPDK_RPC_REGISTER_ALIAS_DEPRECATED(nvmf_delete_subsystem, delete_nvmf_subsystem) 539 540 struct rpc_listen_address { 541 char *transport; 542 char *adrfam; 543 char *traddr; 544 char *trsvcid; 545 }; 546 547 #define RPC_MAX_LISTEN_ADDRESSES 255 548 #define RPC_MAX_NAMESPACES 255 549 550 struct rpc_listen_addresses { 551 size_t num_listen_address; 552 struct rpc_listen_address addresses[RPC_MAX_LISTEN_ADDRESSES]; 553 }; 554 555 static const struct spdk_json_object_decoder rpc_listen_address_decoders[] = { 556 /* NOTE: "transport" is kept for compatibility; new code should use "trtype" */ 557 {"transport", offsetof(struct rpc_listen_address, transport), spdk_json_decode_string, true}, 558 {"trtype", offsetof(struct rpc_listen_address, transport), spdk_json_decode_string, true}, 559 {"adrfam", offsetof(struct rpc_listen_address, adrfam), spdk_json_decode_string, true}, 560 {"traddr", offsetof(struct rpc_listen_address, traddr), spdk_json_decode_string}, 561 {"trsvcid", offsetof(struct rpc_listen_address, trsvcid), spdk_json_decode_string}, 562 }; 563 564 static int 565 decode_rpc_listen_address(const struct spdk_json_val *val, void *out) 566 { 567 struct rpc_listen_address *req = (struct rpc_listen_address *)out; 568 if (spdk_json_decode_object(val, rpc_listen_address_decoders, 569 SPDK_COUNTOF(rpc_listen_address_decoders), 570 req)) { 571 SPDK_ERRLOG("spdk_json_decode_object failed\n"); 572 return -1; 573 } 574 return 0; 575 } 576 577 static void 578 free_rpc_listen_address(struct rpc_listen_address *r) 579 { 580 free(r->transport); 581 free(r->adrfam); 582 free(r->traddr); 583 free(r->trsvcid); 584 } 585 586 enum nvmf_rpc_listen_op { 587 NVMF_RPC_LISTEN_ADD, 588 NVMF_RPC_LISTEN_REMOVE, 589 }; 590 591 struct nvmf_rpc_listener_ctx { 592 char *nqn; 593 char *tgt_name; 594 struct spdk_nvmf_tgt *tgt; 595 struct spdk_nvmf_transport *transport; 596 struct spdk_nvmf_subsystem *subsystem; 597 struct rpc_listen_address address; 598 599 struct spdk_jsonrpc_request *request; 600 struct spdk_nvme_transport_id trid; 601 enum nvmf_rpc_listen_op op; 602 bool response_sent; 603 }; 604 605 static const struct spdk_json_object_decoder nvmf_rpc_listener_decoder[] = { 606 {"nqn", offsetof(struct nvmf_rpc_listener_ctx, nqn), spdk_json_decode_string}, 607 {"listen_address", offsetof(struct nvmf_rpc_listener_ctx, address), decode_rpc_listen_address}, 608 {"tgt_name", offsetof(struct nvmf_rpc_listener_ctx, tgt_name), spdk_json_decode_string, true}, 609 }; 610 611 static void 612 nvmf_rpc_listener_ctx_free(struct nvmf_rpc_listener_ctx *ctx) 613 { 614 free(ctx->nqn); 615 free(ctx->tgt_name); 616 free_rpc_listen_address(&ctx->address); 617 free(ctx); 618 } 619 620 static void 621 nvmf_rpc_listen_resumed(struct spdk_nvmf_subsystem *subsystem, 622 void *cb_arg, int status) 623 { 624 struct nvmf_rpc_listener_ctx *ctx = cb_arg; 625 struct spdk_jsonrpc_request *request; 626 struct spdk_json_write_ctx *w; 627 628 request = ctx->request; 629 if (ctx->response_sent) { 630 /* If an error occurred, the response has already been sent. */ 631 nvmf_rpc_listener_ctx_free(ctx); 632 return; 633 } 634 635 nvmf_rpc_listener_ctx_free(ctx); 636 637 w = spdk_jsonrpc_begin_result(request); 638 spdk_json_write_bool(w, true); 639 spdk_jsonrpc_end_result(request, w); 640 } 641 642 static void 643 nvmf_rpc_subsystem_listen(void *cb_arg, int status) 644 { 645 struct nvmf_rpc_listener_ctx *ctx = cb_arg; 646 647 if (status) { 648 /* Destroy the listener that we just created. Ignore the error code because 649 * the RPC is failing already anyway. */ 650 spdk_nvmf_tgt_stop_listen(ctx->tgt, &ctx->trid); 651 652 spdk_jsonrpc_send_error_response(ctx->request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, 653 "Invalid parameters"); 654 ctx->response_sent = true; 655 } 656 657 if (spdk_nvmf_subsystem_resume(ctx->subsystem, nvmf_rpc_listen_resumed, ctx)) { 658 if (!ctx->response_sent) { 659 spdk_jsonrpc_send_error_response(ctx->request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, "Internal error"); 660 } 661 nvmf_rpc_listener_ctx_free(ctx); 662 /* Can't really do anything to recover here - subsystem will remain paused. */ 663 } 664 } 665 static void 666 nvmf_rpc_stop_listen_async_done(void *cb_arg, int status) 667 { 668 struct nvmf_rpc_listener_ctx *ctx = cb_arg; 669 670 if (status) { 671 SPDK_ERRLOG("Unable to remove listener.\n"); 672 spdk_jsonrpc_send_error_response_fmt(ctx->request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, 673 "error stopping listener: %d\n", status); 674 ctx->response_sent = true; 675 } 676 677 if (spdk_nvmf_subsystem_resume(ctx->subsystem, nvmf_rpc_listen_resumed, ctx)) { 678 if (!ctx->response_sent) { 679 spdk_jsonrpc_send_error_response(ctx->request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, "Internal error"); 680 } 681 nvmf_rpc_listener_ctx_free(ctx); 682 /* Can't really do anything to recover here - subsystem will remain paused. */ 683 } 684 } 685 686 static void 687 nvmf_rpc_listen_paused(struct spdk_nvmf_subsystem *subsystem, 688 void *cb_arg, int status) 689 { 690 struct nvmf_rpc_listener_ctx *ctx = cb_arg; 691 int rc; 692 693 if (ctx->op == NVMF_RPC_LISTEN_ADD) { 694 if (!nvmf_subsystem_find_listener(subsystem, &ctx->trid)) { 695 rc = spdk_nvmf_tgt_listen(ctx->tgt, &ctx->trid); 696 if (rc == 0) { 697 spdk_nvmf_subsystem_add_listener(ctx->subsystem, &ctx->trid, nvmf_rpc_subsystem_listen, ctx); 698 return; 699 } 700 701 spdk_jsonrpc_send_error_response(ctx->request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, 702 "Invalid parameters"); 703 ctx->response_sent = true; 704 } 705 } else if (ctx->op == NVMF_RPC_LISTEN_REMOVE) { 706 if (spdk_nvmf_subsystem_remove_listener(subsystem, &ctx->trid)) { 707 SPDK_ERRLOG("Unable to remove listener.\n"); 708 spdk_jsonrpc_send_error_response(ctx->request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, 709 "Invalid parameters"); 710 ctx->response_sent = true; 711 } 712 spdk_nvmf_transport_stop_listen_async(ctx->transport, &ctx->trid, nvmf_rpc_stop_listen_async_done, 713 ctx); 714 return; 715 } else { 716 SPDK_UNREACHABLE(); 717 } 718 719 if (spdk_nvmf_subsystem_resume(subsystem, nvmf_rpc_listen_resumed, ctx)) { 720 if (!ctx->response_sent) { 721 spdk_jsonrpc_send_error_response(ctx->request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, "Internal error"); 722 } 723 nvmf_rpc_listener_ctx_free(ctx); 724 /* Can't really do anything to recover here - subsystem will remain paused. */ 725 } 726 } 727 728 static int 729 rpc_listen_address_to_trid(const struct rpc_listen_address *address, 730 struct spdk_nvme_transport_id *trid) 731 { 732 size_t len; 733 734 memset(trid, 0, sizeof(*trid)); 735 736 if (spdk_nvme_transport_id_populate_trstring(trid, address->transport)) { 737 SPDK_ERRLOG("Invalid transport string: %s\n", address->transport); 738 return -EINVAL; 739 } 740 741 if (spdk_nvme_transport_id_parse_trtype(&trid->trtype, address->transport)) { 742 SPDK_ERRLOG("Invalid transport type: %s\n", address->transport); 743 return -EINVAL; 744 } 745 746 if (address->adrfam) { 747 if (spdk_nvme_transport_id_parse_adrfam(&trid->adrfam, address->adrfam)) { 748 SPDK_ERRLOG("Invalid adrfam: %s\n", address->adrfam); 749 return -EINVAL; 750 } 751 } else { 752 trid->adrfam = SPDK_NVMF_ADRFAM_IPV4; 753 } 754 755 len = strlen(address->traddr); 756 if (len > sizeof(trid->traddr) - 1) { 757 SPDK_ERRLOG("Transport address longer than %zu characters: %s\n", 758 sizeof(trid->traddr) - 1, address->traddr); 759 return -EINVAL; 760 } 761 memcpy(trid->traddr, address->traddr, len + 1); 762 763 len = strlen(address->trsvcid); 764 if (len > sizeof(trid->trsvcid) - 1) { 765 SPDK_ERRLOG("Transport service id longer than %zu characters: %s\n", 766 sizeof(trid->trsvcid) - 1, address->trsvcid); 767 return -EINVAL; 768 } 769 memcpy(trid->trsvcid, address->trsvcid, len + 1); 770 771 return 0; 772 } 773 774 static void 775 rpc_nvmf_subsystem_add_listener(struct spdk_jsonrpc_request *request, 776 const struct spdk_json_val *params) 777 { 778 struct nvmf_rpc_listener_ctx *ctx; 779 struct spdk_nvmf_subsystem *subsystem; 780 struct spdk_nvmf_tgt *tgt; 781 782 ctx = calloc(1, sizeof(*ctx)); 783 if (!ctx) { 784 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, "Out of memory"); 785 return; 786 } 787 788 ctx->request = request; 789 790 if (spdk_json_decode_object(params, nvmf_rpc_listener_decoder, 791 SPDK_COUNTOF(nvmf_rpc_listener_decoder), 792 ctx)) { 793 SPDK_ERRLOG("spdk_json_decode_object failed\n"); 794 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid parameters"); 795 nvmf_rpc_listener_ctx_free(ctx); 796 return; 797 } 798 799 tgt = spdk_nvmf_get_tgt(ctx->tgt_name); 800 if (!tgt) { 801 SPDK_ERRLOG("Unable to find a target object.\n"); 802 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, 803 "Unable to find a target."); 804 nvmf_rpc_listener_ctx_free(ctx); 805 return; 806 } 807 ctx->tgt = tgt; 808 809 subsystem = spdk_nvmf_tgt_find_subsystem(tgt, ctx->nqn); 810 if (!subsystem) { 811 SPDK_ERRLOG("Unable to find subsystem with NQN %s\n", ctx->nqn); 812 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid parameters"); 813 nvmf_rpc_listener_ctx_free(ctx); 814 return; 815 } 816 817 ctx->subsystem = subsystem; 818 819 if (rpc_listen_address_to_trid(&ctx->address, &ctx->trid)) { 820 spdk_jsonrpc_send_error_response(ctx->request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, 821 "Invalid parameters"); 822 nvmf_rpc_listener_ctx_free(ctx); 823 return; 824 } 825 826 ctx->op = NVMF_RPC_LISTEN_ADD; 827 828 if (spdk_nvmf_subsystem_pause(subsystem, nvmf_rpc_listen_paused, ctx)) { 829 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, "Internal error"); 830 nvmf_rpc_listener_ctx_free(ctx); 831 } 832 } 833 SPDK_RPC_REGISTER("nvmf_subsystem_add_listener", rpc_nvmf_subsystem_add_listener, 834 SPDK_RPC_RUNTIME); 835 836 static void 837 rpc_nvmf_subsystem_remove_listener(struct spdk_jsonrpc_request *request, 838 const struct spdk_json_val *params) 839 { 840 struct nvmf_rpc_listener_ctx *ctx; 841 struct spdk_nvmf_subsystem *subsystem; 842 struct spdk_nvmf_tgt *tgt; 843 844 ctx = calloc(1, sizeof(*ctx)); 845 if (!ctx) { 846 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, "Out of memory"); 847 return; 848 } 849 850 ctx->request = request; 851 852 if (spdk_json_decode_object(params, nvmf_rpc_listener_decoder, 853 SPDK_COUNTOF(nvmf_rpc_listener_decoder), 854 ctx)) { 855 SPDK_ERRLOG("spdk_json_decode_object failed\n"); 856 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid parameters"); 857 nvmf_rpc_listener_ctx_free(ctx); 858 return; 859 } 860 861 tgt = spdk_nvmf_get_tgt(ctx->tgt_name); 862 if (!tgt) { 863 SPDK_ERRLOG("Unable to find a target object.\n"); 864 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, 865 "Unable to find a target."); 866 nvmf_rpc_listener_ctx_free(ctx); 867 return; 868 } 869 ctx->tgt = tgt; 870 871 subsystem = spdk_nvmf_tgt_find_subsystem(tgt, ctx->nqn); 872 if (!subsystem) { 873 SPDK_ERRLOG("Unable to find subsystem with NQN %s\n", ctx->nqn); 874 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid parameters"); 875 nvmf_rpc_listener_ctx_free(ctx); 876 return; 877 } 878 879 ctx->subsystem = subsystem; 880 881 if (rpc_listen_address_to_trid(&ctx->address, &ctx->trid)) { 882 spdk_jsonrpc_send_error_response(ctx->request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, 883 "Invalid parameters"); 884 nvmf_rpc_listener_ctx_free(ctx); 885 return; 886 } 887 888 ctx->transport = spdk_nvmf_tgt_get_transport(tgt, ctx->trid.trstring); 889 if (!ctx->transport) { 890 spdk_jsonrpc_send_error_response(ctx->request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, 891 "Invalid parameters"); 892 nvmf_rpc_listener_ctx_free(ctx); 893 return; 894 } 895 896 ctx->op = NVMF_RPC_LISTEN_REMOVE; 897 898 if (spdk_nvmf_subsystem_pause(subsystem, nvmf_rpc_listen_paused, ctx)) { 899 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, "Internal error"); 900 nvmf_rpc_listener_ctx_free(ctx); 901 } 902 } 903 SPDK_RPC_REGISTER("nvmf_subsystem_remove_listener", rpc_nvmf_subsystem_remove_listener, 904 SPDK_RPC_RUNTIME); 905 906 struct spdk_nvmf_ns_params { 907 char *bdev_name; 908 char *ptpl_file; 909 uint32_t nsid; 910 char nguid[16]; 911 char eui64[8]; 912 struct spdk_uuid uuid; 913 }; 914 915 struct rpc_namespaces { 916 size_t num_ns; 917 struct spdk_nvmf_ns_params ns_params[RPC_MAX_NAMESPACES]; 918 }; 919 920 921 static const struct spdk_json_object_decoder rpc_ns_params_decoders[] = { 922 {"nsid", offsetof(struct spdk_nvmf_ns_params, nsid), spdk_json_decode_uint32, true}, 923 {"bdev_name", offsetof(struct spdk_nvmf_ns_params, bdev_name), spdk_json_decode_string}, 924 {"ptpl_file", offsetof(struct spdk_nvmf_ns_params, ptpl_file), spdk_json_decode_string, true}, 925 {"nguid", offsetof(struct spdk_nvmf_ns_params, nguid), decode_ns_nguid, true}, 926 {"eui64", offsetof(struct spdk_nvmf_ns_params, eui64), decode_ns_eui64, true}, 927 {"uuid", offsetof(struct spdk_nvmf_ns_params, uuid), decode_ns_uuid, true}, 928 }; 929 930 static int 931 decode_rpc_ns_params(const struct spdk_json_val *val, void *out) 932 { 933 struct spdk_nvmf_ns_params *ns_params = out; 934 935 return spdk_json_decode_object(val, rpc_ns_params_decoders, 936 SPDK_COUNTOF(rpc_ns_params_decoders), 937 ns_params); 938 } 939 940 struct nvmf_rpc_ns_ctx { 941 char *nqn; 942 char *tgt_name; 943 struct spdk_nvmf_ns_params ns_params; 944 945 struct spdk_jsonrpc_request *request; 946 bool response_sent; 947 }; 948 949 static const struct spdk_json_object_decoder nvmf_rpc_subsystem_ns_decoder[] = { 950 {"nqn", offsetof(struct nvmf_rpc_ns_ctx, nqn), spdk_json_decode_string}, 951 {"namespace", offsetof(struct nvmf_rpc_ns_ctx, ns_params), decode_rpc_ns_params}, 952 {"tgt_name", offsetof(struct nvmf_rpc_ns_ctx, tgt_name), spdk_json_decode_string, true}, 953 }; 954 955 static void 956 nvmf_rpc_ns_ctx_free(struct nvmf_rpc_ns_ctx *ctx) 957 { 958 free(ctx->nqn); 959 free(ctx->tgt_name); 960 free(ctx->ns_params.bdev_name); 961 free(ctx->ns_params.ptpl_file); 962 free(ctx); 963 } 964 965 static void 966 nvmf_rpc_ns_resumed(struct spdk_nvmf_subsystem *subsystem, 967 void *cb_arg, int status) 968 { 969 struct nvmf_rpc_ns_ctx *ctx = cb_arg; 970 struct spdk_jsonrpc_request *request = ctx->request; 971 uint32_t nsid = ctx->ns_params.nsid; 972 bool response_sent = ctx->response_sent; 973 struct spdk_json_write_ctx *w; 974 975 nvmf_rpc_ns_ctx_free(ctx); 976 977 if (response_sent) { 978 return; 979 } 980 981 w = spdk_jsonrpc_begin_result(request); 982 spdk_json_write_uint32(w, nsid); 983 spdk_jsonrpc_end_result(request, w); 984 } 985 986 static void 987 nvmf_rpc_ns_paused(struct spdk_nvmf_subsystem *subsystem, 988 void *cb_arg, int status) 989 { 990 struct nvmf_rpc_ns_ctx *ctx = cb_arg; 991 struct spdk_nvmf_ns_opts ns_opts; 992 struct spdk_bdev *bdev; 993 994 bdev = spdk_bdev_get_by_name(ctx->ns_params.bdev_name); 995 if (!bdev) { 996 SPDK_ERRLOG("No bdev with name %s\n", ctx->ns_params.bdev_name); 997 spdk_jsonrpc_send_error_response(ctx->request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, 998 "Invalid parameters"); 999 ctx->response_sent = true; 1000 goto resume; 1001 } 1002 1003 spdk_nvmf_ns_opts_get_defaults(&ns_opts, sizeof(ns_opts)); 1004 ns_opts.nsid = ctx->ns_params.nsid; 1005 1006 SPDK_STATIC_ASSERT(sizeof(ns_opts.nguid) == sizeof(ctx->ns_params.nguid), "size mismatch"); 1007 memcpy(ns_opts.nguid, ctx->ns_params.nguid, sizeof(ns_opts.nguid)); 1008 1009 SPDK_STATIC_ASSERT(sizeof(ns_opts.eui64) == sizeof(ctx->ns_params.eui64), "size mismatch"); 1010 memcpy(ns_opts.eui64, ctx->ns_params.eui64, sizeof(ns_opts.eui64)); 1011 1012 if (!spdk_mem_all_zero(&ctx->ns_params.uuid, sizeof(ctx->ns_params.uuid))) { 1013 ns_opts.uuid = ctx->ns_params.uuid; 1014 } 1015 1016 ctx->ns_params.nsid = spdk_nvmf_subsystem_add_ns(subsystem, bdev, &ns_opts, sizeof(ns_opts), 1017 ctx->ns_params.ptpl_file); 1018 if (ctx->ns_params.nsid == 0) { 1019 SPDK_ERRLOG("Unable to add namespace\n"); 1020 spdk_jsonrpc_send_error_response(ctx->request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, 1021 "Invalid parameters"); 1022 ctx->response_sent = true; 1023 goto resume; 1024 } 1025 1026 resume: 1027 if (spdk_nvmf_subsystem_resume(subsystem, nvmf_rpc_ns_resumed, ctx)) { 1028 spdk_jsonrpc_send_error_response(ctx->request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, "Internal error"); 1029 nvmf_rpc_ns_ctx_free(ctx); 1030 } 1031 } 1032 1033 static void 1034 rpc_nvmf_subsystem_add_ns(struct spdk_jsonrpc_request *request, 1035 const struct spdk_json_val *params) 1036 { 1037 struct nvmf_rpc_ns_ctx *ctx; 1038 struct spdk_nvmf_subsystem *subsystem; 1039 struct spdk_nvmf_tgt *tgt; 1040 1041 ctx = calloc(1, sizeof(*ctx)); 1042 if (!ctx) { 1043 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, "Out of memory"); 1044 return; 1045 } 1046 1047 if (spdk_json_decode_object(params, nvmf_rpc_subsystem_ns_decoder, 1048 SPDK_COUNTOF(nvmf_rpc_subsystem_ns_decoder), 1049 ctx)) { 1050 SPDK_ERRLOG("spdk_json_decode_object failed\n"); 1051 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid parameters"); 1052 nvmf_rpc_ns_ctx_free(ctx); 1053 return; 1054 } 1055 1056 ctx->request = request; 1057 ctx->response_sent = false; 1058 1059 tgt = spdk_nvmf_get_tgt(ctx->tgt_name); 1060 if (!tgt) { 1061 SPDK_ERRLOG("Unable to find a target object.\n"); 1062 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, 1063 "Unable to find a target."); 1064 nvmf_rpc_ns_ctx_free(ctx); 1065 return; 1066 } 1067 1068 subsystem = spdk_nvmf_tgt_find_subsystem(tgt, ctx->nqn); 1069 if (!subsystem) { 1070 SPDK_ERRLOG("Unable to find subsystem with NQN %s\n", ctx->nqn); 1071 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid parameters"); 1072 nvmf_rpc_ns_ctx_free(ctx); 1073 return; 1074 } 1075 1076 if (spdk_nvmf_subsystem_pause(subsystem, nvmf_rpc_ns_paused, ctx)) { 1077 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, "Internal error"); 1078 nvmf_rpc_ns_ctx_free(ctx); 1079 } 1080 } 1081 SPDK_RPC_REGISTER("nvmf_subsystem_add_ns", rpc_nvmf_subsystem_add_ns, SPDK_RPC_RUNTIME) 1082 1083 struct nvmf_rpc_remove_ns_ctx { 1084 char *nqn; 1085 char *tgt_name; 1086 uint32_t nsid; 1087 1088 struct spdk_jsonrpc_request *request; 1089 bool response_sent; 1090 }; 1091 1092 static const struct spdk_json_object_decoder nvmf_rpc_subsystem_remove_ns_decoder[] = { 1093 {"nqn", offsetof(struct nvmf_rpc_remove_ns_ctx, nqn), spdk_json_decode_string}, 1094 {"nsid", offsetof(struct nvmf_rpc_remove_ns_ctx, nsid), spdk_json_decode_uint32}, 1095 {"tgt_name", offsetof(struct nvmf_rpc_remove_ns_ctx, tgt_name), spdk_json_decode_string, true}, 1096 }; 1097 1098 static void 1099 nvmf_rpc_remove_ns_ctx_free(struct nvmf_rpc_remove_ns_ctx *ctx) 1100 { 1101 free(ctx->nqn); 1102 free(ctx->tgt_name); 1103 free(ctx); 1104 } 1105 1106 static void 1107 nvmf_rpc_remove_ns_resumed(struct spdk_nvmf_subsystem *subsystem, 1108 void *cb_arg, int status) 1109 { 1110 struct nvmf_rpc_remove_ns_ctx *ctx = cb_arg; 1111 struct spdk_jsonrpc_request *request = ctx->request; 1112 bool response_sent = ctx->response_sent; 1113 struct spdk_json_write_ctx *w; 1114 1115 nvmf_rpc_remove_ns_ctx_free(ctx); 1116 1117 if (response_sent) { 1118 return; 1119 } 1120 1121 w = spdk_jsonrpc_begin_result(request); 1122 spdk_json_write_bool(w, true); 1123 spdk_jsonrpc_end_result(request, w); 1124 } 1125 1126 static void 1127 nvmf_rpc_remove_ns_paused(struct spdk_nvmf_subsystem *subsystem, 1128 void *cb_arg, int status) 1129 { 1130 struct nvmf_rpc_remove_ns_ctx *ctx = cb_arg; 1131 int ret; 1132 1133 ret = spdk_nvmf_subsystem_remove_ns(subsystem, ctx->nsid); 1134 if (ret < 0) { 1135 SPDK_ERRLOG("Unable to remove namespace ID %u\n", ctx->nsid); 1136 spdk_jsonrpc_send_error_response(ctx->request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, 1137 "Invalid parameters"); 1138 ctx->response_sent = true; 1139 } 1140 1141 if (spdk_nvmf_subsystem_resume(subsystem, nvmf_rpc_remove_ns_resumed, ctx)) { 1142 if (!ctx->response_sent) { 1143 spdk_jsonrpc_send_error_response(ctx->request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, "Internal error"); 1144 } 1145 nvmf_rpc_remove_ns_ctx_free(ctx); 1146 } 1147 } 1148 1149 static void 1150 rpc_nvmf_subsystem_remove_ns(struct spdk_jsonrpc_request *request, 1151 const struct spdk_json_val *params) 1152 { 1153 struct nvmf_rpc_remove_ns_ctx *ctx; 1154 struct spdk_nvmf_subsystem *subsystem; 1155 struct spdk_nvmf_tgt *tgt; 1156 1157 ctx = calloc(1, sizeof(*ctx)); 1158 if (!ctx) { 1159 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, "Out of memory"); 1160 return; 1161 } 1162 1163 if (spdk_json_decode_object(params, nvmf_rpc_subsystem_remove_ns_decoder, 1164 SPDK_COUNTOF(nvmf_rpc_subsystem_remove_ns_decoder), 1165 ctx)) { 1166 SPDK_ERRLOG("spdk_json_decode_object failed\n"); 1167 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid parameters"); 1168 nvmf_rpc_remove_ns_ctx_free(ctx); 1169 return; 1170 } 1171 1172 tgt = spdk_nvmf_get_tgt(ctx->tgt_name); 1173 if (!tgt) { 1174 SPDK_ERRLOG("Unable to find a target object.\n"); 1175 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, 1176 "Unable to find a target."); 1177 nvmf_rpc_remove_ns_ctx_free(ctx); 1178 return; 1179 } 1180 1181 ctx->request = request; 1182 ctx->response_sent = false; 1183 1184 subsystem = spdk_nvmf_tgt_find_subsystem(tgt, ctx->nqn); 1185 if (!subsystem) { 1186 SPDK_ERRLOG("Unable to find subsystem with NQN %s\n", ctx->nqn); 1187 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid parameters"); 1188 nvmf_rpc_remove_ns_ctx_free(ctx); 1189 return; 1190 } 1191 1192 if (spdk_nvmf_subsystem_pause(subsystem, nvmf_rpc_remove_ns_paused, ctx)) { 1193 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, "Internal error"); 1194 nvmf_rpc_remove_ns_ctx_free(ctx); 1195 } 1196 } 1197 SPDK_RPC_REGISTER("nvmf_subsystem_remove_ns", rpc_nvmf_subsystem_remove_ns, SPDK_RPC_RUNTIME) 1198 1199 enum nvmf_rpc_host_op { 1200 NVMF_RPC_HOST_ADD, 1201 NVMF_RPC_HOST_REMOVE, 1202 NVMF_RPC_HOST_ALLOW_ANY, 1203 }; 1204 1205 struct nvmf_rpc_host_ctx { 1206 struct spdk_jsonrpc_request *request; 1207 1208 char *nqn; 1209 char *host; 1210 char *tgt_name; 1211 1212 enum nvmf_rpc_host_op op; 1213 1214 bool allow_any_host; 1215 1216 bool response_sent; 1217 }; 1218 1219 static const struct spdk_json_object_decoder nvmf_rpc_subsystem_host_decoder[] = { 1220 {"nqn", offsetof(struct nvmf_rpc_host_ctx, nqn), spdk_json_decode_string}, 1221 {"host", offsetof(struct nvmf_rpc_host_ctx, host), spdk_json_decode_string}, 1222 {"tgt_name", offsetof(struct nvmf_rpc_host_ctx, tgt_name), spdk_json_decode_string, true}, 1223 }; 1224 1225 static void 1226 nvmf_rpc_host_ctx_free(struct nvmf_rpc_host_ctx *ctx) 1227 { 1228 free(ctx->nqn); 1229 free(ctx->host); 1230 free(ctx->tgt_name); 1231 free(ctx); 1232 } 1233 1234 static void 1235 nvmf_rpc_host_resumed(struct spdk_nvmf_subsystem *subsystem, 1236 void *cb_arg, int status) 1237 { 1238 struct nvmf_rpc_host_ctx *ctx = cb_arg; 1239 struct spdk_jsonrpc_request *request; 1240 struct spdk_json_write_ctx *w; 1241 bool response_sent = ctx->response_sent; 1242 1243 request = ctx->request; 1244 nvmf_rpc_host_ctx_free(ctx); 1245 1246 if (response_sent) { 1247 return; 1248 } 1249 1250 w = spdk_jsonrpc_begin_result(request); 1251 spdk_json_write_bool(w, true); 1252 spdk_jsonrpc_end_result(request, w); 1253 } 1254 1255 static void 1256 nvmf_rpc_host_paused(struct spdk_nvmf_subsystem *subsystem, 1257 void *cb_arg, int status) 1258 { 1259 struct nvmf_rpc_host_ctx *ctx = cb_arg; 1260 int rc = -1; 1261 1262 switch (ctx->op) { 1263 case NVMF_RPC_HOST_ADD: 1264 rc = spdk_nvmf_subsystem_add_host(subsystem, ctx->host); 1265 break; 1266 case NVMF_RPC_HOST_REMOVE: 1267 rc = spdk_nvmf_subsystem_remove_host(subsystem, ctx->host); 1268 break; 1269 case NVMF_RPC_HOST_ALLOW_ANY: 1270 rc = spdk_nvmf_subsystem_set_allow_any_host(subsystem, ctx->allow_any_host); 1271 break; 1272 } 1273 1274 if (rc != 0) { 1275 spdk_jsonrpc_send_error_response(ctx->request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, "Internal error"); 1276 ctx->response_sent = true; 1277 } 1278 1279 if (spdk_nvmf_subsystem_resume(subsystem, nvmf_rpc_host_resumed, ctx)) { 1280 if (!ctx->response_sent) { 1281 spdk_jsonrpc_send_error_response(ctx->request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, "Internal error"); 1282 } 1283 nvmf_rpc_host_ctx_free(ctx); 1284 } 1285 } 1286 1287 static void 1288 rpc_nvmf_subsystem_add_host(struct spdk_jsonrpc_request *request, 1289 const struct spdk_json_val *params) 1290 { 1291 struct nvmf_rpc_host_ctx *ctx; 1292 struct spdk_nvmf_subsystem *subsystem; 1293 struct spdk_nvmf_tgt *tgt; 1294 1295 ctx = calloc(1, sizeof(*ctx)); 1296 if (!ctx) { 1297 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, "Out of memory"); 1298 return; 1299 } 1300 1301 if (spdk_json_decode_object(params, nvmf_rpc_subsystem_host_decoder, 1302 SPDK_COUNTOF(nvmf_rpc_subsystem_host_decoder), 1303 ctx)) { 1304 SPDK_ERRLOG("spdk_json_decode_object failed\n"); 1305 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid parameters"); 1306 nvmf_rpc_host_ctx_free(ctx); 1307 return; 1308 } 1309 1310 tgt = spdk_nvmf_get_tgt(ctx->tgt_name); 1311 if (!tgt) { 1312 SPDK_ERRLOG("Unable to find a target object.\n"); 1313 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, 1314 "Unable to find a target."); 1315 nvmf_rpc_host_ctx_free(ctx); 1316 return; 1317 } 1318 1319 ctx->request = request; 1320 ctx->op = NVMF_RPC_HOST_ADD; 1321 ctx->response_sent = false; 1322 1323 subsystem = spdk_nvmf_tgt_find_subsystem(tgt, ctx->nqn); 1324 if (!subsystem) { 1325 SPDK_ERRLOG("Unable to find subsystem with NQN %s\n", ctx->nqn); 1326 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid parameters"); 1327 nvmf_rpc_host_ctx_free(ctx); 1328 return; 1329 } 1330 1331 if (spdk_nvmf_subsystem_pause(subsystem, nvmf_rpc_host_paused, ctx)) { 1332 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, "Internal error"); 1333 nvmf_rpc_host_ctx_free(ctx); 1334 } 1335 } 1336 SPDK_RPC_REGISTER("nvmf_subsystem_add_host", rpc_nvmf_subsystem_add_host, SPDK_RPC_RUNTIME) 1337 1338 static void 1339 rpc_nvmf_subsystem_remove_host(struct spdk_jsonrpc_request *request, 1340 const struct spdk_json_val *params) 1341 { 1342 struct nvmf_rpc_host_ctx *ctx; 1343 struct spdk_nvmf_subsystem *subsystem; 1344 struct spdk_nvmf_tgt *tgt; 1345 1346 ctx = calloc(1, sizeof(*ctx)); 1347 if (!ctx) { 1348 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, "Out of memory"); 1349 return; 1350 } 1351 1352 if (spdk_json_decode_object(params, nvmf_rpc_subsystem_host_decoder, 1353 SPDK_COUNTOF(nvmf_rpc_subsystem_host_decoder), 1354 ctx)) { 1355 SPDK_ERRLOG("spdk_json_decode_object failed\n"); 1356 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid parameters"); 1357 nvmf_rpc_host_ctx_free(ctx); 1358 return; 1359 } 1360 1361 tgt = spdk_nvmf_get_tgt(ctx->tgt_name); 1362 if (!tgt) { 1363 SPDK_ERRLOG("Unable to find a target object.\n"); 1364 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, 1365 "Unable to find a target."); 1366 nvmf_rpc_host_ctx_free(ctx); 1367 return; 1368 } 1369 1370 ctx->request = request; 1371 ctx->op = NVMF_RPC_HOST_REMOVE; 1372 ctx->response_sent = false; 1373 1374 subsystem = spdk_nvmf_tgt_find_subsystem(tgt, ctx->nqn); 1375 if (!subsystem) { 1376 SPDK_ERRLOG("Unable to find subsystem with NQN %s\n", ctx->nqn); 1377 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid parameters"); 1378 nvmf_rpc_host_ctx_free(ctx); 1379 return; 1380 } 1381 1382 if (spdk_nvmf_subsystem_pause(subsystem, nvmf_rpc_host_paused, ctx)) { 1383 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, "Internal error"); 1384 nvmf_rpc_host_ctx_free(ctx); 1385 } 1386 } 1387 SPDK_RPC_REGISTER("nvmf_subsystem_remove_host", rpc_nvmf_subsystem_remove_host, 1388 SPDK_RPC_RUNTIME) 1389 1390 1391 static const struct spdk_json_object_decoder nvmf_rpc_subsystem_any_host_decoder[] = { 1392 {"nqn", offsetof(struct nvmf_rpc_host_ctx, nqn), spdk_json_decode_string}, 1393 {"allow_any_host", offsetof(struct nvmf_rpc_host_ctx, allow_any_host), spdk_json_decode_bool}, 1394 {"tgt_name", offsetof(struct nvmf_rpc_host_ctx, tgt_name), spdk_json_decode_string, true}, 1395 }; 1396 1397 static void 1398 rpc_nvmf_subsystem_allow_any_host(struct spdk_jsonrpc_request *request, 1399 const struct spdk_json_val *params) 1400 { 1401 struct nvmf_rpc_host_ctx *ctx; 1402 struct spdk_nvmf_subsystem *subsystem; 1403 struct spdk_nvmf_tgt *tgt; 1404 1405 ctx = calloc(1, sizeof(*ctx)); 1406 if (!ctx) { 1407 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, "Out of memory"); 1408 return; 1409 } 1410 1411 if (spdk_json_decode_object(params, nvmf_rpc_subsystem_any_host_decoder, 1412 SPDK_COUNTOF(nvmf_rpc_subsystem_any_host_decoder), 1413 ctx)) { 1414 SPDK_ERRLOG("spdk_json_decode_object failed\n"); 1415 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid parameters"); 1416 nvmf_rpc_host_ctx_free(ctx); 1417 return; 1418 } 1419 1420 tgt = spdk_nvmf_get_tgt(ctx->tgt_name); 1421 if (!tgt) { 1422 SPDK_ERRLOG("Unable to find a target object.\n"); 1423 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, 1424 "Unable to find a target."); 1425 nvmf_rpc_host_ctx_free(ctx); 1426 return; 1427 } 1428 1429 ctx->request = request; 1430 ctx->op = NVMF_RPC_HOST_ALLOW_ANY; 1431 ctx->response_sent = false; 1432 1433 subsystem = spdk_nvmf_tgt_find_subsystem(tgt, ctx->nqn); 1434 if (!subsystem) { 1435 SPDK_ERRLOG("Unable to find subsystem with NQN %s\n", ctx->nqn); 1436 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid parameters"); 1437 nvmf_rpc_host_ctx_free(ctx); 1438 return; 1439 } 1440 1441 if (spdk_nvmf_subsystem_pause(subsystem, nvmf_rpc_host_paused, ctx)) { 1442 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, "Internal error"); 1443 nvmf_rpc_host_ctx_free(ctx); 1444 } 1445 } 1446 SPDK_RPC_REGISTER("nvmf_subsystem_allow_any_host", rpc_nvmf_subsystem_allow_any_host, 1447 SPDK_RPC_RUNTIME) 1448 1449 struct nvmf_rpc_target_ctx { 1450 char *name; 1451 uint32_t max_subsystems; 1452 }; 1453 1454 static const struct spdk_json_object_decoder nvmf_rpc_create_target_decoder[] = { 1455 {"name", offsetof(struct nvmf_rpc_target_ctx, name), spdk_json_decode_string}, 1456 {"max_subsystems", offsetof(struct nvmf_rpc_target_ctx, max_subsystems), spdk_json_decode_uint32, true}, 1457 }; 1458 1459 static void 1460 rpc_nvmf_create_target(struct spdk_jsonrpc_request *request, 1461 const struct spdk_json_val *params) 1462 { 1463 struct spdk_nvmf_target_opts opts; 1464 struct nvmf_rpc_target_ctx ctx = {0}; 1465 struct spdk_nvmf_tgt *tgt; 1466 struct spdk_json_write_ctx *w; 1467 1468 /* Decode parameters the first time to get the transport type */ 1469 if (spdk_json_decode_object(params, nvmf_rpc_create_target_decoder, 1470 SPDK_COUNTOF(nvmf_rpc_create_target_decoder), 1471 &ctx)) { 1472 SPDK_ERRLOG("spdk_json_decode_object failed\n"); 1473 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid parameters"); 1474 free(ctx.name); 1475 return; 1476 } 1477 1478 snprintf(opts.name, NVMF_TGT_NAME_MAX_LENGTH, "%s", ctx.name); 1479 opts.max_subsystems = ctx.max_subsystems; 1480 1481 if (spdk_nvmf_get_tgt(opts.name) != NULL) { 1482 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, 1483 "Target already exists."); 1484 free(ctx.name); 1485 return; 1486 } 1487 1488 tgt = spdk_nvmf_tgt_create(&opts); 1489 1490 if (tgt == NULL) { 1491 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, 1492 "Unable to create the requested target."); 1493 free(ctx.name); 1494 return; 1495 } 1496 1497 w = spdk_jsonrpc_begin_result(request); 1498 spdk_json_write_string(w, spdk_nvmf_tgt_get_name(tgt)); 1499 spdk_jsonrpc_end_result(request, w); 1500 free(ctx.name); 1501 } 1502 SPDK_RPC_REGISTER("nvmf_create_target", rpc_nvmf_create_target, SPDK_RPC_RUNTIME); 1503 1504 static const struct spdk_json_object_decoder nvmf_rpc_destroy_target_decoder[] = { 1505 {"name", offsetof(struct nvmf_rpc_target_ctx, name), spdk_json_decode_string}, 1506 }; 1507 1508 static void 1509 nvmf_rpc_destroy_target_done(void *ctx, int status) 1510 { 1511 struct spdk_jsonrpc_request *request = ctx; 1512 struct spdk_json_write_ctx *w; 1513 1514 w = spdk_jsonrpc_begin_result(request); 1515 spdk_json_write_bool(w, true); 1516 spdk_jsonrpc_end_result(request, w); 1517 } 1518 1519 static void 1520 rpc_nvmf_delete_target(struct spdk_jsonrpc_request *request, 1521 const struct spdk_json_val *params) 1522 { 1523 struct nvmf_rpc_target_ctx ctx = {0}; 1524 struct spdk_nvmf_tgt *tgt; 1525 1526 /* Decode parameters the first time to get the transport type */ 1527 if (spdk_json_decode_object(params, nvmf_rpc_destroy_target_decoder, 1528 SPDK_COUNTOF(nvmf_rpc_destroy_target_decoder), 1529 &ctx)) { 1530 SPDK_ERRLOG("spdk_json_decode_object failed\n"); 1531 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid parameters"); 1532 free(ctx.name); 1533 return; 1534 } 1535 1536 tgt = spdk_nvmf_get_tgt(ctx.name); 1537 1538 if (tgt == NULL) { 1539 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, 1540 "The specified target doesn't exist, cannot delete it."); 1541 free(ctx.name); 1542 return; 1543 } 1544 1545 spdk_nvmf_tgt_destroy(tgt, nvmf_rpc_destroy_target_done, request); 1546 free(ctx.name); 1547 } 1548 SPDK_RPC_REGISTER("nvmf_delete_target", rpc_nvmf_delete_target, SPDK_RPC_RUNTIME); 1549 1550 static void 1551 rpc_nvmf_get_targets(struct spdk_jsonrpc_request *request, 1552 const struct spdk_json_val *params) 1553 { 1554 struct spdk_json_write_ctx *w; 1555 struct spdk_nvmf_tgt *tgt; 1556 const char *name; 1557 1558 if (params != NULL) { 1559 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, 1560 "nvmf_get_targets has no parameters."); 1561 return; 1562 } 1563 1564 w = spdk_jsonrpc_begin_result(request); 1565 spdk_json_write_array_begin(w); 1566 1567 tgt = spdk_nvmf_get_first_tgt(); 1568 1569 while (tgt != NULL) { 1570 name = spdk_nvmf_tgt_get_name(tgt); 1571 spdk_json_write_string(w, name); 1572 tgt = spdk_nvmf_get_next_tgt(tgt); 1573 } 1574 1575 spdk_json_write_array_end(w); 1576 spdk_jsonrpc_end_result(request, w); 1577 } 1578 SPDK_RPC_REGISTER("nvmf_get_targets", rpc_nvmf_get_targets, SPDK_RPC_RUNTIME); 1579 1580 struct nvmf_rpc_create_transport_ctx { 1581 char *trtype; 1582 char *tgt_name; 1583 struct spdk_nvmf_transport_opts opts; 1584 struct spdk_jsonrpc_request *request; 1585 }; 1586 1587 /** 1588 * `max_qpairs_per_ctrlr` represents both admin and IO qpairs, that confuses 1589 * users when they configure a transport using RPC. So it was decided to 1590 * deprecate `max_qpairs_per_ctrlr` RPC parameter and use `max_io_qpairs_per_ctrlr` 1591 * But internal logic remains unchanged and SPDK expects that 1592 * spdk_nvmf_transport_opts::max_qpairs_per_ctrlr includes an admin qpair. 1593 * This function parses the number of IO qpairs and adds +1 for admin qpair. 1594 */ 1595 static int 1596 nvmf_rpc_decode_max_io_qpairs(const struct spdk_json_val *val, void *out) 1597 { 1598 uint16_t *i = out; 1599 int rc; 1600 1601 rc = spdk_json_number_to_uint16(val, i); 1602 if (rc == 0) { 1603 (*i)++; 1604 } 1605 1606 return rc; 1607 } 1608 1609 /** 1610 * This function parses deprecated `max_qpairs_per_ctrlr` and warns the user to use 1611 * the new parameter `max_io_qpairs_per_ctrlr` 1612 */ 1613 static int 1614 nvmf_rpc_decode_max_qpairs(const struct spdk_json_val *val, void *out) 1615 { 1616 uint16_t *i = out; 1617 int rc; 1618 1619 rc = spdk_json_number_to_uint16(val, i); 1620 if (rc == 0) { 1621 SPDK_WARNLOG("Parameter max_qpairs_per_ctrlr is deprecated, use max_io_qpairs_per_ctrlr instead.\n"); 1622 } 1623 1624 return rc; 1625 } 1626 1627 static const struct spdk_json_object_decoder nvmf_rpc_create_transport_decoder[] = { 1628 { "trtype", offsetof(struct nvmf_rpc_create_transport_ctx, trtype), spdk_json_decode_string}, 1629 { 1630 "max_queue_depth", offsetof(struct nvmf_rpc_create_transport_ctx, opts.max_queue_depth), 1631 spdk_json_decode_uint16, true 1632 }, 1633 { 1634 "max_qpairs_per_ctrlr", offsetof(struct nvmf_rpc_create_transport_ctx, opts.max_qpairs_per_ctrlr), 1635 nvmf_rpc_decode_max_qpairs, true 1636 }, 1637 { 1638 "max_io_qpairs_per_ctrlr", offsetof(struct nvmf_rpc_create_transport_ctx, opts.max_qpairs_per_ctrlr), 1639 nvmf_rpc_decode_max_io_qpairs, true 1640 }, 1641 { 1642 "in_capsule_data_size", offsetof(struct nvmf_rpc_create_transport_ctx, opts.in_capsule_data_size), 1643 spdk_json_decode_uint32, true 1644 }, 1645 { 1646 "max_io_size", offsetof(struct nvmf_rpc_create_transport_ctx, opts.max_io_size), 1647 spdk_json_decode_uint32, true 1648 }, 1649 { 1650 "io_unit_size", offsetof(struct nvmf_rpc_create_transport_ctx, opts.io_unit_size), 1651 spdk_json_decode_uint32, true 1652 }, 1653 { 1654 "max_aq_depth", offsetof(struct nvmf_rpc_create_transport_ctx, opts.max_aq_depth), 1655 spdk_json_decode_uint32, true 1656 }, 1657 { 1658 "num_shared_buffers", offsetof(struct nvmf_rpc_create_transport_ctx, opts.num_shared_buffers), 1659 spdk_json_decode_uint32, true 1660 }, 1661 { 1662 "buf_cache_size", offsetof(struct nvmf_rpc_create_transport_ctx, opts.buf_cache_size), 1663 spdk_json_decode_uint32, true 1664 }, 1665 { 1666 "max_srq_depth", offsetof(struct nvmf_rpc_create_transport_ctx, opts.max_srq_depth), 1667 spdk_json_decode_uint32, true 1668 }, 1669 { 1670 "no_srq", offsetof(struct nvmf_rpc_create_transport_ctx, opts.no_srq), 1671 spdk_json_decode_bool, true 1672 }, 1673 { 1674 "c2h_success", offsetof(struct nvmf_rpc_create_transport_ctx, opts.c2h_success), 1675 spdk_json_decode_bool, true 1676 }, 1677 { 1678 "dif_insert_or_strip", offsetof(struct nvmf_rpc_create_transport_ctx, opts.dif_insert_or_strip), 1679 spdk_json_decode_bool, true 1680 }, 1681 { 1682 "sock_priority", offsetof(struct nvmf_rpc_create_transport_ctx, opts.sock_priority), 1683 spdk_json_decode_uint32, true 1684 }, 1685 { 1686 "acceptor_backlog", offsetof(struct nvmf_rpc_create_transport_ctx, opts.acceptor_backlog), 1687 spdk_json_decode_int32, true 1688 }, 1689 { 1690 "abort_timeout_sec", offsetof(struct nvmf_rpc_create_transport_ctx, opts.abort_timeout_sec), 1691 spdk_json_decode_uint32, true 1692 }, 1693 { 1694 "tgt_name", offsetof(struct nvmf_rpc_create_transport_ctx, tgt_name), 1695 spdk_json_decode_string, true 1696 }, 1697 }; 1698 1699 static void 1700 nvmf_rpc_create_transport_ctx_free(struct nvmf_rpc_create_transport_ctx *ctx) 1701 { 1702 free(ctx->trtype); 1703 free(ctx->tgt_name); 1704 free(ctx); 1705 } 1706 1707 static void 1708 nvmf_rpc_tgt_add_transport_done(void *cb_arg, int status) 1709 { 1710 struct nvmf_rpc_create_transport_ctx *ctx = cb_arg; 1711 struct spdk_jsonrpc_request *request; 1712 struct spdk_json_write_ctx *w; 1713 1714 request = ctx->request; 1715 nvmf_rpc_create_transport_ctx_free(ctx); 1716 1717 if (status) { 1718 SPDK_ERRLOG("Failed to add transport to tgt.(%d)\n", status); 1719 spdk_jsonrpc_send_error_response_fmt(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, 1720 "Failed to add transport to tgt.(%d)\n", 1721 status); 1722 return; 1723 } 1724 1725 w = spdk_jsonrpc_begin_result(request); 1726 spdk_json_write_bool(w, true); 1727 spdk_jsonrpc_end_result(request, w); 1728 } 1729 1730 static void 1731 rpc_nvmf_create_transport(struct spdk_jsonrpc_request *request, 1732 const struct spdk_json_val *params) 1733 { 1734 struct nvmf_rpc_create_transport_ctx *ctx; 1735 enum spdk_nvme_transport_type trtype; 1736 struct spdk_nvmf_transport *transport; 1737 struct spdk_nvmf_tgt *tgt; 1738 1739 ctx = calloc(1, sizeof(*ctx)); 1740 if (!ctx) { 1741 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, "Out of memory"); 1742 return; 1743 } 1744 1745 /* Decode parameters the first time to get the transport type */ 1746 if (spdk_json_decode_object(params, nvmf_rpc_create_transport_decoder, 1747 SPDK_COUNTOF(nvmf_rpc_create_transport_decoder), 1748 ctx)) { 1749 SPDK_ERRLOG("spdk_json_decode_object failed\n"); 1750 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid parameters"); 1751 nvmf_rpc_create_transport_ctx_free(ctx); 1752 return; 1753 } 1754 1755 tgt = spdk_nvmf_get_tgt(ctx->tgt_name); 1756 if (!tgt) { 1757 SPDK_ERRLOG("Unable to find a target object.\n"); 1758 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, 1759 "Unable to find a target."); 1760 nvmf_rpc_create_transport_ctx_free(ctx); 1761 return; 1762 } 1763 1764 if (spdk_nvme_transport_id_parse_trtype(&trtype, ctx->trtype)) { 1765 SPDK_ERRLOG("Invalid transport type '%s'\n", ctx->trtype); 1766 spdk_jsonrpc_send_error_response_fmt(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, 1767 "Invalid transport type '%s'\n", ctx->trtype); 1768 nvmf_rpc_create_transport_ctx_free(ctx); 1769 return; 1770 } 1771 1772 /* Initialize all the transport options (based on transport type) and decode the 1773 * parameters again to update any options passed in rpc create transport call. 1774 */ 1775 if (!spdk_nvmf_transport_opts_init(ctx->trtype, &ctx->opts)) { 1776 /* This can happen if user specifies PCIE transport type which isn't valid for 1777 * NVMe-oF. 1778 */ 1779 SPDK_ERRLOG("Invalid transport type '%s'\n", ctx->trtype); 1780 spdk_jsonrpc_send_error_response_fmt(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, 1781 "Invalid transport type '%s'\n", ctx->trtype); 1782 nvmf_rpc_create_transport_ctx_free(ctx); 1783 return; 1784 } 1785 1786 if (spdk_json_decode_object(params, nvmf_rpc_create_transport_decoder, 1787 SPDK_COUNTOF(nvmf_rpc_create_transport_decoder), 1788 ctx)) { 1789 SPDK_ERRLOG("spdk_json_decode_object failed\n"); 1790 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid parameters"); 1791 nvmf_rpc_create_transport_ctx_free(ctx); 1792 return; 1793 } 1794 1795 if (spdk_nvmf_tgt_get_transport(tgt, ctx->trtype)) { 1796 SPDK_ERRLOG("Transport type '%s' already exists\n", ctx->trtype); 1797 spdk_jsonrpc_send_error_response_fmt(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, 1798 "Transport type '%s' already exists\n", ctx->trtype); 1799 nvmf_rpc_create_transport_ctx_free(ctx); 1800 return; 1801 } 1802 1803 transport = spdk_nvmf_transport_create(ctx->trtype, &ctx->opts); 1804 1805 if (!transport) { 1806 SPDK_ERRLOG("Transport type '%s' create failed\n", ctx->trtype); 1807 spdk_jsonrpc_send_error_response_fmt(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, 1808 "Transport type '%s' create failed\n", ctx->trtype); 1809 nvmf_rpc_create_transport_ctx_free(ctx); 1810 return; 1811 } 1812 1813 /* add transport to target */ 1814 ctx->request = request; 1815 spdk_nvmf_tgt_add_transport(tgt, transport, nvmf_rpc_tgt_add_transport_done, ctx); 1816 } 1817 SPDK_RPC_REGISTER("nvmf_create_transport", rpc_nvmf_create_transport, SPDK_RPC_RUNTIME) 1818 1819 static void 1820 dump_nvmf_transport(struct spdk_json_write_ctx *w, struct spdk_nvmf_transport *transport) 1821 { 1822 const struct spdk_nvmf_transport_opts *opts = spdk_nvmf_get_transport_opts(transport); 1823 spdk_nvme_transport_type_t type = spdk_nvmf_get_transport_type(transport); 1824 1825 spdk_json_write_object_begin(w); 1826 1827 spdk_json_write_named_string(w, "trtype", spdk_nvmf_get_transport_name(transport)); 1828 spdk_json_write_named_uint32(w, "max_queue_depth", opts->max_queue_depth); 1829 spdk_json_write_named_uint32(w, "max_io_qpairs_per_ctrlr", opts->max_qpairs_per_ctrlr - 1); 1830 spdk_json_write_named_uint32(w, "in_capsule_data_size", opts->in_capsule_data_size); 1831 spdk_json_write_named_uint32(w, "max_io_size", opts->max_io_size); 1832 spdk_json_write_named_uint32(w, "io_unit_size", opts->io_unit_size); 1833 spdk_json_write_named_uint32(w, "max_aq_depth", opts->max_aq_depth); 1834 spdk_json_write_named_uint32(w, "num_shared_buffers", opts->num_shared_buffers); 1835 spdk_json_write_named_uint32(w, "buf_cache_size", opts->buf_cache_size); 1836 spdk_json_write_named_bool(w, "dif_insert_or_strip", opts->dif_insert_or_strip); 1837 if (type == SPDK_NVME_TRANSPORT_RDMA) { 1838 spdk_json_write_named_uint32(w, "max_srq_depth", opts->max_srq_depth); 1839 spdk_json_write_named_bool(w, "no_srq", opts->no_srq); 1840 spdk_json_write_named_int32(w, "acceptor_backlog", opts->acceptor_backlog); 1841 } else if (type == SPDK_NVME_TRANSPORT_TCP) { 1842 spdk_json_write_named_bool(w, "c2h_success", opts->c2h_success); 1843 spdk_json_write_named_uint32(w, "sock_priority", opts->sock_priority); 1844 } 1845 spdk_json_write_named_uint32(w, "abort_timeout_sec", opts->abort_timeout_sec); 1846 1847 spdk_json_write_object_end(w); 1848 } 1849 1850 struct rpc_get_transport { 1851 char *tgt_name; 1852 }; 1853 1854 static const struct spdk_json_object_decoder rpc_get_transport_decoders[] = { 1855 {"tgt_name", offsetof(struct rpc_get_transport, tgt_name), spdk_json_decode_string, true}, 1856 }; 1857 1858 static void 1859 rpc_nvmf_get_transports(struct spdk_jsonrpc_request *request, 1860 const struct spdk_json_val *params) 1861 { 1862 struct rpc_get_transport req = { 0 }; 1863 struct spdk_json_write_ctx *w; 1864 struct spdk_nvmf_transport *transport; 1865 struct spdk_nvmf_tgt *tgt; 1866 1867 if (params) { 1868 if (spdk_json_decode_object(params, rpc_get_transport_decoders, 1869 SPDK_COUNTOF(rpc_get_transport_decoders), 1870 &req)) { 1871 SPDK_ERRLOG("spdk_json_decode_object failed\n"); 1872 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid parameters"); 1873 return; 1874 } 1875 } 1876 1877 tgt = spdk_nvmf_get_tgt(req.tgt_name); 1878 if (!tgt) { 1879 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, 1880 "Unable to find a target."); 1881 free(req.tgt_name); 1882 return; 1883 } 1884 1885 w = spdk_jsonrpc_begin_result(request); 1886 spdk_json_write_array_begin(w); 1887 transport = spdk_nvmf_transport_get_first(tgt); 1888 while (transport) { 1889 dump_nvmf_transport(w, transport); 1890 transport = spdk_nvmf_transport_get_next(transport); 1891 } 1892 spdk_json_write_array_end(w); 1893 spdk_jsonrpc_end_result(request, w); 1894 free(req.tgt_name); 1895 } 1896 SPDK_RPC_REGISTER("nvmf_get_transports", rpc_nvmf_get_transports, SPDK_RPC_RUNTIME) 1897 SPDK_RPC_REGISTER_ALIAS_DEPRECATED(nvmf_get_transports, get_nvmf_transports) 1898 1899 struct rpc_nvmf_get_stats_ctx { 1900 char *tgt_name; 1901 struct spdk_nvmf_tgt *tgt; 1902 struct spdk_jsonrpc_request *request; 1903 struct spdk_json_write_ctx *w; 1904 }; 1905 1906 static const struct spdk_json_object_decoder rpc_get_stats_decoders[] = { 1907 {"tgt_name", offsetof(struct rpc_nvmf_get_stats_ctx, tgt_name), spdk_json_decode_string, true}, 1908 }; 1909 1910 static void 1911 free_get_stats_ctx(struct rpc_nvmf_get_stats_ctx *ctx) 1912 { 1913 free(ctx->tgt_name); 1914 free(ctx); 1915 } 1916 1917 static void 1918 rpc_nvmf_get_stats_done(struct spdk_io_channel_iter *i, int status) 1919 { 1920 struct rpc_nvmf_get_stats_ctx *ctx = spdk_io_channel_iter_get_ctx(i); 1921 1922 spdk_json_write_array_end(ctx->w); 1923 spdk_json_write_object_end(ctx->w); 1924 spdk_jsonrpc_end_result(ctx->request, ctx->w); 1925 free_get_stats_ctx(ctx); 1926 } 1927 1928 static void 1929 write_nvmf_transport_stats(struct spdk_json_write_ctx *w, 1930 struct spdk_nvmf_transport_poll_group_stat *stat) 1931 { 1932 uint64_t i; 1933 1934 spdk_json_write_object_begin(w); 1935 spdk_json_write_named_string(w, "trtype", 1936 spdk_nvme_transport_id_trtype_str(stat->trtype)); 1937 switch (stat->trtype) { 1938 case SPDK_NVME_TRANSPORT_RDMA: 1939 spdk_json_write_named_uint64(w, "pending_data_buffer", stat->rdma.pending_data_buffer); 1940 spdk_json_write_named_array_begin(w, "devices"); 1941 for (i = 0; i < stat->rdma.num_devices; ++i) { 1942 spdk_json_write_object_begin(w); 1943 spdk_json_write_named_string(w, "name", stat->rdma.devices[i].name); 1944 spdk_json_write_named_uint64(w, "polls", stat->rdma.devices[i].polls); 1945 spdk_json_write_named_uint64(w, "completions", stat->rdma.devices[i].completions); 1946 spdk_json_write_named_uint64(w, "requests", 1947 stat->rdma.devices[i].requests); 1948 spdk_json_write_named_uint64(w, "request_latency", 1949 stat->rdma.devices[i].request_latency); 1950 spdk_json_write_named_uint64(w, "pending_free_request", 1951 stat->rdma.devices[i].pending_free_request); 1952 spdk_json_write_named_uint64(w, "pending_rdma_read", 1953 stat->rdma.devices[i].pending_rdma_read); 1954 spdk_json_write_named_uint64(w, "pending_rdma_write", 1955 stat->rdma.devices[i].pending_rdma_write); 1956 spdk_json_write_object_end(w); 1957 } 1958 spdk_json_write_array_end(w); 1959 break; 1960 default: 1961 break; 1962 } 1963 spdk_json_write_object_end(w); 1964 } 1965 1966 static void 1967 _rpc_nvmf_get_stats(struct spdk_io_channel_iter *i) 1968 { 1969 struct rpc_nvmf_get_stats_ctx *ctx = spdk_io_channel_iter_get_ctx(i); 1970 struct spdk_nvmf_transport *transport; 1971 struct spdk_nvmf_poll_group_stat stat; 1972 struct spdk_nvmf_transport_poll_group_stat *trstat; 1973 int rc; 1974 1975 if (0 == spdk_nvmf_poll_group_get_stat(ctx->tgt, &stat)) { 1976 spdk_json_write_object_begin(ctx->w); 1977 spdk_json_write_named_string(ctx->w, "name", spdk_thread_get_name(spdk_get_thread())); 1978 spdk_json_write_named_uint32(ctx->w, "admin_qpairs", stat.admin_qpairs); 1979 spdk_json_write_named_uint32(ctx->w, "io_qpairs", stat.io_qpairs); 1980 spdk_json_write_named_uint64(ctx->w, "pending_bdev_io", stat.pending_bdev_io); 1981 1982 spdk_json_write_named_array_begin(ctx->w, "transports"); 1983 transport = spdk_nvmf_transport_get_first(ctx->tgt); 1984 while (transport) { 1985 rc = spdk_nvmf_transport_poll_group_get_stat(ctx->tgt, transport, &trstat); 1986 if (0 == rc) { 1987 write_nvmf_transport_stats(ctx->w, trstat); 1988 spdk_nvmf_transport_poll_group_free_stat(transport, trstat); 1989 } else if (-ENOTSUP != rc) { 1990 SPDK_ERRLOG("Failed to get poll group statistics for transport %s, errno %d\n", 1991 spdk_nvme_transport_id_trtype_str(spdk_nvmf_get_transport_type(transport)), 1992 rc); 1993 } 1994 transport = spdk_nvmf_transport_get_next(transport); 1995 } 1996 spdk_json_write_array_end(ctx->w); 1997 spdk_json_write_object_end(ctx->w); 1998 } 1999 2000 spdk_for_each_channel_continue(i, 0); 2001 } 2002 2003 2004 static void 2005 rpc_nvmf_get_stats(struct spdk_jsonrpc_request *request, 2006 const struct spdk_json_val *params) 2007 { 2008 struct rpc_nvmf_get_stats_ctx *ctx; 2009 2010 ctx = calloc(1, sizeof(*ctx)); 2011 if (!ctx) { 2012 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, 2013 "Memory allocation error"); 2014 return; 2015 } 2016 ctx->request = request; 2017 2018 if (params) { 2019 if (spdk_json_decode_object(params, rpc_get_stats_decoders, 2020 SPDK_COUNTOF(rpc_get_stats_decoders), 2021 ctx)) { 2022 SPDK_ERRLOG("spdk_json_decode_object failed\n"); 2023 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid parameters"); 2024 free_get_stats_ctx(ctx); 2025 return; 2026 } 2027 } 2028 2029 ctx->tgt = spdk_nvmf_get_tgt(ctx->tgt_name); 2030 if (!ctx->tgt) { 2031 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, 2032 "Unable to find a target."); 2033 free_get_stats_ctx(ctx); 2034 return; 2035 } 2036 2037 ctx->w = spdk_jsonrpc_begin_result(ctx->request); 2038 spdk_json_write_object_begin(ctx->w); 2039 spdk_json_write_named_uint64(ctx->w, "tick_rate", spdk_get_ticks_hz()); 2040 spdk_json_write_named_array_begin(ctx->w, "poll_groups"); 2041 2042 spdk_for_each_channel(ctx->tgt, 2043 _rpc_nvmf_get_stats, 2044 ctx, 2045 rpc_nvmf_get_stats_done); 2046 } 2047 2048 SPDK_RPC_REGISTER("nvmf_get_stats", rpc_nvmf_get_stats, SPDK_RPC_RUNTIME) 2049 2050 static void 2051 dump_nvmf_ctrlr(struct spdk_json_write_ctx *w, struct spdk_nvmf_ctrlr *ctrlr) 2052 { 2053 char uuid_str[SPDK_UUID_STRING_LEN] = {}; 2054 uint32_t count; 2055 2056 spdk_json_write_object_begin(w); 2057 2058 spdk_json_write_named_uint32(w, "cntlid", ctrlr->cntlid); 2059 2060 spdk_json_write_named_string(w, "hostnqn", ctrlr->hostnqn); 2061 2062 spdk_uuid_fmt_lower(uuid_str, sizeof(uuid_str), &ctrlr->hostid); 2063 spdk_json_write_named_string(w, "hostid", uuid_str); 2064 2065 count = spdk_bit_array_count_set(ctrlr->qpair_mask); 2066 spdk_json_write_named_uint32(w, "num_io_qpairs", count); 2067 2068 spdk_json_write_object_end(w); 2069 } 2070 2071 struct rpc_nvmf_get_ctrlr_ctx { 2072 char *nqn; 2073 char *tgt_name; 2074 struct spdk_nvmf_subsystem *subsystem; 2075 struct spdk_jsonrpc_request *request; 2076 struct spdk_json_write_ctx *w; 2077 }; 2078 2079 static const struct spdk_json_object_decoder rpc_nvmf_get_ctrlr_decoders[] = { 2080 {"nqn", offsetof(struct rpc_nvmf_get_ctrlr_ctx, nqn), spdk_json_decode_string}, 2081 {"tgt_name", offsetof(struct rpc_nvmf_get_ctrlr_ctx, tgt_name), spdk_json_decode_string, true}, 2082 }; 2083 2084 static void 2085 free_rpc_nvmf_get_ctrlr_ctx(struct rpc_nvmf_get_ctrlr_ctx *ctx) 2086 { 2087 free(ctx->nqn); 2088 free(ctx->tgt_name); 2089 free(ctx); 2090 } 2091 2092 static void 2093 rpc_nvmf_get_controllers_paused(struct spdk_nvmf_subsystem *subsystem, 2094 void *cb_arg, int status) 2095 { 2096 struct rpc_nvmf_get_ctrlr_ctx *ctx = cb_arg; 2097 struct spdk_json_write_ctx *w; 2098 struct spdk_nvmf_ctrlr *ctrlr; 2099 2100 w = spdk_jsonrpc_begin_result(ctx->request); 2101 2102 spdk_json_write_array_begin(w); 2103 TAILQ_FOREACH(ctrlr, &ctx->subsystem->ctrlrs, link) { 2104 dump_nvmf_ctrlr(w, ctrlr); 2105 } 2106 spdk_json_write_array_end(w); 2107 2108 spdk_jsonrpc_end_result(ctx->request, w); 2109 2110 if (spdk_nvmf_subsystem_resume(ctx->subsystem, NULL, NULL)) { 2111 SPDK_ERRLOG("Resuming subsystem with NQN %s failed\n", ctx->nqn); 2112 /* FIXME: RPC should fail if resuming the subsystem failed. */ 2113 } 2114 2115 free_rpc_nvmf_get_ctrlr_ctx(ctx); 2116 } 2117 2118 static void 2119 rpc_nvmf_subsystem_get_controllers(struct spdk_jsonrpc_request *request, 2120 const struct spdk_json_val *params) 2121 { 2122 struct rpc_nvmf_get_ctrlr_ctx *ctx; 2123 struct spdk_nvmf_subsystem *subsystem; 2124 struct spdk_nvmf_tgt *tgt; 2125 2126 ctx = calloc(1, sizeof(*ctx)); 2127 if (!ctx) { 2128 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, 2129 "Out of memory"); 2130 return; 2131 } 2132 2133 ctx->request = request; 2134 2135 if (spdk_json_decode_object(params, rpc_nvmf_get_ctrlr_decoders, 2136 SPDK_COUNTOF(rpc_nvmf_get_ctrlr_decoders), 2137 ctx)) { 2138 SPDK_ERRLOG("spdk_json_decode_object failed\n"); 2139 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, 2140 "Invalid parameters"); 2141 free_rpc_nvmf_get_ctrlr_ctx(ctx); 2142 return; 2143 } 2144 2145 tgt = spdk_nvmf_get_tgt(ctx->tgt_name); 2146 if (!tgt) { 2147 SPDK_ERRLOG("Unable to find a target object.\n"); 2148 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, 2149 "Unable to find a target"); 2150 free_rpc_nvmf_get_ctrlr_ctx(ctx); 2151 return; 2152 } 2153 2154 subsystem = spdk_nvmf_tgt_find_subsystem(tgt, ctx->nqn); 2155 if (!subsystem) { 2156 SPDK_ERRLOG("Unable to find subsystem with NQN %s\n", ctx->nqn); 2157 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, 2158 "Invalid parameters"); 2159 free_rpc_nvmf_get_ctrlr_ctx(ctx); 2160 return; 2161 } 2162 2163 ctx->subsystem = subsystem; 2164 2165 if (spdk_nvmf_subsystem_pause(subsystem, rpc_nvmf_get_controllers_paused, ctx)) { 2166 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, 2167 "Internal error"); 2168 free_rpc_nvmf_get_ctrlr_ctx(ctx); 2169 return; 2170 } 2171 } 2172 SPDK_RPC_REGISTER("nvmf_subsystem_get_controllers", rpc_nvmf_subsystem_get_controllers, 2173 SPDK_RPC_RUNTIME); 2174