1 /*- 2 * BSD LICENSE 3 * 4 * Copyright (c) Intel Corporation. 5 * 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/stdinc.h" 35 36 #include "blobstore.h" 37 #include "request.h" 38 39 #include "spdk/thread.h" 40 #include "spdk/queue.h" 41 42 #include "spdk/log.h" 43 44 void 45 bs_call_cpl(struct spdk_bs_cpl *cpl, int bserrno) 46 { 47 switch (cpl->type) { 48 case SPDK_BS_CPL_TYPE_BS_BASIC: 49 cpl->u.bs_basic.cb_fn(cpl->u.bs_basic.cb_arg, 50 bserrno); 51 break; 52 case SPDK_BS_CPL_TYPE_BS_HANDLE: 53 cpl->u.bs_handle.cb_fn(cpl->u.bs_handle.cb_arg, 54 bserrno == 0 ? cpl->u.bs_handle.bs : NULL, 55 bserrno); 56 break; 57 case SPDK_BS_CPL_TYPE_BLOB_BASIC: 58 cpl->u.blob_basic.cb_fn(cpl->u.blob_basic.cb_arg, 59 bserrno); 60 break; 61 case SPDK_BS_CPL_TYPE_BLOBID: 62 cpl->u.blobid.cb_fn(cpl->u.blobid.cb_arg, 63 bserrno == 0 ? cpl->u.blobid.blobid : SPDK_BLOBID_INVALID, 64 bserrno); 65 break; 66 case SPDK_BS_CPL_TYPE_BLOB_HANDLE: 67 cpl->u.blob_handle.cb_fn(cpl->u.blob_handle.cb_arg, 68 bserrno == 0 ? cpl->u.blob_handle.blob : NULL, 69 bserrno); 70 break; 71 case SPDK_BS_CPL_TYPE_NESTED_SEQUENCE: 72 cpl->u.nested_seq.cb_fn(cpl->u.nested_seq.cb_arg, 73 cpl->u.nested_seq.parent, 74 bserrno); 75 break; 76 case SPDK_BS_CPL_TYPE_NONE: 77 /* this completion's callback is handled elsewhere */ 78 break; 79 } 80 } 81 82 static void 83 bs_request_set_complete(struct spdk_bs_request_set *set) 84 { 85 struct spdk_bs_cpl cpl = set->cpl; 86 int bserrno = set->bserrno; 87 88 TAILQ_INSERT_TAIL(&set->channel->reqs, set, link); 89 90 bs_call_cpl(&cpl, bserrno); 91 } 92 93 static void 94 bs_sequence_completion(struct spdk_io_channel *channel, void *cb_arg, int bserrno) 95 { 96 struct spdk_bs_request_set *set = cb_arg; 97 98 set->bserrno = bserrno; 99 set->u.sequence.cb_fn((spdk_bs_sequence_t *)set, set->u.sequence.cb_arg, bserrno); 100 } 101 102 spdk_bs_sequence_t * 103 bs_sequence_start(struct spdk_io_channel *_channel, 104 struct spdk_bs_cpl *cpl) 105 { 106 struct spdk_bs_channel *channel; 107 struct spdk_bs_request_set *set; 108 109 channel = spdk_io_channel_get_ctx(_channel); 110 assert(channel != NULL); 111 set = TAILQ_FIRST(&channel->reqs); 112 if (!set) { 113 return NULL; 114 } 115 TAILQ_REMOVE(&channel->reqs, set, link); 116 117 set->cpl = *cpl; 118 set->bserrno = 0; 119 set->channel = channel; 120 121 set->cb_args.cb_fn = bs_sequence_completion; 122 set->cb_args.cb_arg = set; 123 set->cb_args.channel = channel->dev_channel; 124 125 return (spdk_bs_sequence_t *)set; 126 } 127 128 void 129 bs_sequence_read_bs_dev(spdk_bs_sequence_t *seq, struct spdk_bs_dev *bs_dev, 130 void *payload, uint64_t lba, uint32_t lba_count, 131 spdk_bs_sequence_cpl cb_fn, void *cb_arg) 132 { 133 struct spdk_bs_request_set *set = (struct spdk_bs_request_set *)seq; 134 struct spdk_bs_channel *channel = set->channel; 135 136 SPDK_DEBUGLOG(blob_rw, "Reading %" PRIu32 " blocks from LBA %" PRIu64 "\n", lba_count, 137 lba); 138 139 set->u.sequence.cb_fn = cb_fn; 140 set->u.sequence.cb_arg = cb_arg; 141 142 bs_dev->read(bs_dev, spdk_io_channel_from_ctx(channel), payload, lba, lba_count, &set->cb_args); 143 } 144 145 void 146 bs_sequence_read_dev(spdk_bs_sequence_t *seq, void *payload, 147 uint64_t lba, uint32_t lba_count, 148 spdk_bs_sequence_cpl cb_fn, void *cb_arg) 149 { 150 struct spdk_bs_request_set *set = (struct spdk_bs_request_set *)seq; 151 struct spdk_bs_channel *channel = set->channel; 152 153 SPDK_DEBUGLOG(blob_rw, "Reading %" PRIu32 " blocks from LBA %" PRIu64 "\n", lba_count, 154 lba); 155 156 set->u.sequence.cb_fn = cb_fn; 157 set->u.sequence.cb_arg = cb_arg; 158 159 channel->dev->read(channel->dev, channel->dev_channel, payload, lba, lba_count, &set->cb_args); 160 } 161 162 void 163 bs_sequence_write_dev(spdk_bs_sequence_t *seq, void *payload, 164 uint64_t lba, uint32_t lba_count, 165 spdk_bs_sequence_cpl cb_fn, void *cb_arg) 166 { 167 struct spdk_bs_request_set *set = (struct spdk_bs_request_set *)seq; 168 struct spdk_bs_channel *channel = set->channel; 169 170 SPDK_DEBUGLOG(blob_rw, "Writing %" PRIu32 " blocks from LBA %" PRIu64 "\n", lba_count, 171 lba); 172 173 set->u.sequence.cb_fn = cb_fn; 174 set->u.sequence.cb_arg = cb_arg; 175 176 channel->dev->write(channel->dev, channel->dev_channel, payload, lba, lba_count, 177 &set->cb_args); 178 } 179 180 void 181 bs_sequence_readv_bs_dev(spdk_bs_sequence_t *seq, struct spdk_bs_dev *bs_dev, 182 struct iovec *iov, int iovcnt, uint64_t lba, uint32_t lba_count, 183 spdk_bs_sequence_cpl cb_fn, void *cb_arg) 184 { 185 struct spdk_bs_request_set *set = (struct spdk_bs_request_set *)seq; 186 struct spdk_bs_channel *channel = set->channel; 187 188 SPDK_DEBUGLOG(blob_rw, "Reading %" PRIu32 " blocks from LBA %" PRIu64 "\n", lba_count, 189 lba); 190 191 set->u.sequence.cb_fn = cb_fn; 192 set->u.sequence.cb_arg = cb_arg; 193 194 bs_dev->readv(bs_dev, spdk_io_channel_from_ctx(channel), iov, iovcnt, lba, lba_count, 195 &set->cb_args); 196 } 197 198 void 199 bs_sequence_readv_dev(spdk_bs_sequence_t *seq, struct iovec *iov, int iovcnt, 200 uint64_t lba, uint32_t lba_count, spdk_bs_sequence_cpl cb_fn, void *cb_arg) 201 { 202 struct spdk_bs_request_set *set = (struct spdk_bs_request_set *)seq; 203 struct spdk_bs_channel *channel = set->channel; 204 205 SPDK_DEBUGLOG(blob_rw, "Reading %" PRIu32 " blocks from LBA %" PRIu64 "\n", lba_count, 206 lba); 207 208 set->u.sequence.cb_fn = cb_fn; 209 set->u.sequence.cb_arg = cb_arg; 210 channel->dev->readv(channel->dev, channel->dev_channel, iov, iovcnt, lba, lba_count, 211 &set->cb_args); 212 } 213 214 void 215 bs_sequence_writev_dev(spdk_bs_sequence_t *seq, struct iovec *iov, int iovcnt, 216 uint64_t lba, uint32_t lba_count, 217 spdk_bs_sequence_cpl cb_fn, void *cb_arg) 218 { 219 struct spdk_bs_request_set *set = (struct spdk_bs_request_set *)seq; 220 struct spdk_bs_channel *channel = set->channel; 221 222 SPDK_DEBUGLOG(blob_rw, "Writing %" PRIu32 " blocks from LBA %" PRIu64 "\n", lba_count, 223 lba); 224 225 set->u.sequence.cb_fn = cb_fn; 226 set->u.sequence.cb_arg = cb_arg; 227 228 channel->dev->writev(channel->dev, channel->dev_channel, iov, iovcnt, lba, lba_count, 229 &set->cb_args); 230 } 231 232 void 233 bs_sequence_write_zeroes_dev(spdk_bs_sequence_t *seq, 234 uint64_t lba, uint32_t lba_count, 235 spdk_bs_sequence_cpl cb_fn, void *cb_arg) 236 { 237 struct spdk_bs_request_set *set = (struct spdk_bs_request_set *)seq; 238 struct spdk_bs_channel *channel = set->channel; 239 240 SPDK_DEBUGLOG(blob_rw, "writing zeroes to %" PRIu32 " blocks at LBA %" PRIu64 "\n", 241 lba_count, lba); 242 243 set->u.sequence.cb_fn = cb_fn; 244 set->u.sequence.cb_arg = cb_arg; 245 246 channel->dev->write_zeroes(channel->dev, channel->dev_channel, lba, lba_count, 247 &set->cb_args); 248 } 249 250 void 251 bs_sequence_finish(spdk_bs_sequence_t *seq, int bserrno) 252 { 253 if (bserrno != 0) { 254 seq->bserrno = bserrno; 255 } 256 bs_request_set_complete((struct spdk_bs_request_set *)seq); 257 } 258 259 void 260 bs_user_op_sequence_finish(void *cb_arg, int bserrno) 261 { 262 spdk_bs_sequence_t *seq = cb_arg; 263 264 bs_sequence_finish(seq, bserrno); 265 } 266 267 static void 268 bs_batch_completion(struct spdk_io_channel *_channel, 269 void *cb_arg, int bserrno) 270 { 271 struct spdk_bs_request_set *set = cb_arg; 272 273 set->u.batch.outstanding_ops--; 274 if (bserrno != 0) { 275 set->bserrno = bserrno; 276 } 277 278 if (set->u.batch.outstanding_ops == 0 && set->u.batch.batch_closed) { 279 if (set->u.batch.cb_fn) { 280 set->cb_args.cb_fn = bs_sequence_completion; 281 set->u.batch.cb_fn((spdk_bs_sequence_t *)set, set->u.batch.cb_arg, bserrno); 282 } else { 283 bs_request_set_complete(set); 284 } 285 } 286 } 287 288 spdk_bs_batch_t * 289 bs_batch_open(struct spdk_io_channel *_channel, 290 struct spdk_bs_cpl *cpl) 291 { 292 struct spdk_bs_channel *channel; 293 struct spdk_bs_request_set *set; 294 295 channel = spdk_io_channel_get_ctx(_channel); 296 assert(channel != NULL); 297 set = TAILQ_FIRST(&channel->reqs); 298 if (!set) { 299 return NULL; 300 } 301 TAILQ_REMOVE(&channel->reqs, set, link); 302 303 set->cpl = *cpl; 304 set->bserrno = 0; 305 set->channel = channel; 306 307 set->u.batch.cb_fn = NULL; 308 set->u.batch.cb_arg = NULL; 309 set->u.batch.outstanding_ops = 0; 310 set->u.batch.batch_closed = 0; 311 312 set->cb_args.cb_fn = bs_batch_completion; 313 set->cb_args.cb_arg = set; 314 set->cb_args.channel = channel->dev_channel; 315 316 return (spdk_bs_batch_t *)set; 317 } 318 319 void 320 bs_batch_read_bs_dev(spdk_bs_batch_t *batch, struct spdk_bs_dev *bs_dev, 321 void *payload, uint64_t lba, uint32_t lba_count) 322 { 323 struct spdk_bs_request_set *set = (struct spdk_bs_request_set *)batch; 324 struct spdk_bs_channel *channel = set->channel; 325 326 SPDK_DEBUGLOG(blob_rw, "Reading %" PRIu32 " blocks from LBA %" PRIu64 "\n", lba_count, 327 lba); 328 329 set->u.batch.outstanding_ops++; 330 bs_dev->read(bs_dev, spdk_io_channel_from_ctx(channel), payload, lba, lba_count, &set->cb_args); 331 } 332 333 void 334 bs_batch_read_dev(spdk_bs_batch_t *batch, void *payload, 335 uint64_t lba, uint32_t lba_count) 336 { 337 struct spdk_bs_request_set *set = (struct spdk_bs_request_set *)batch; 338 struct spdk_bs_channel *channel = set->channel; 339 340 SPDK_DEBUGLOG(blob_rw, "Reading %" PRIu32 " blocks from LBA %" PRIu64 "\n", lba_count, 341 lba); 342 343 set->u.batch.outstanding_ops++; 344 channel->dev->read(channel->dev, channel->dev_channel, payload, lba, lba_count, &set->cb_args); 345 } 346 347 void 348 bs_batch_write_dev(spdk_bs_batch_t *batch, void *payload, 349 uint64_t lba, uint32_t lba_count) 350 { 351 struct spdk_bs_request_set *set = (struct spdk_bs_request_set *)batch; 352 struct spdk_bs_channel *channel = set->channel; 353 354 SPDK_DEBUGLOG(blob_rw, "Writing %" PRIu32 " blocks to LBA %" PRIu64 "\n", lba_count, lba); 355 356 set->u.batch.outstanding_ops++; 357 channel->dev->write(channel->dev, channel->dev_channel, payload, lba, lba_count, 358 &set->cb_args); 359 } 360 361 void 362 bs_batch_unmap_dev(spdk_bs_batch_t *batch, 363 uint64_t lba, uint32_t lba_count) 364 { 365 struct spdk_bs_request_set *set = (struct spdk_bs_request_set *)batch; 366 struct spdk_bs_channel *channel = set->channel; 367 368 SPDK_DEBUGLOG(blob_rw, "Unmapping %" PRIu32 " blocks at LBA %" PRIu64 "\n", lba_count, 369 lba); 370 371 set->u.batch.outstanding_ops++; 372 channel->dev->unmap(channel->dev, channel->dev_channel, lba, lba_count, 373 &set->cb_args); 374 } 375 376 void 377 bs_batch_write_zeroes_dev(spdk_bs_batch_t *batch, 378 uint64_t lba, uint32_t lba_count) 379 { 380 struct spdk_bs_request_set *set = (struct spdk_bs_request_set *)batch; 381 struct spdk_bs_channel *channel = set->channel; 382 383 SPDK_DEBUGLOG(blob_rw, "Zeroing %" PRIu32 " blocks at LBA %" PRIu64 "\n", lba_count, lba); 384 385 set->u.batch.outstanding_ops++; 386 channel->dev->write_zeroes(channel->dev, channel->dev_channel, lba, lba_count, 387 &set->cb_args); 388 } 389 390 void 391 bs_batch_close(spdk_bs_batch_t *batch) 392 { 393 struct spdk_bs_request_set *set = (struct spdk_bs_request_set *)batch; 394 395 set->u.batch.batch_closed = 1; 396 397 if (set->u.batch.outstanding_ops == 0) { 398 if (set->u.batch.cb_fn) { 399 set->cb_args.cb_fn = bs_sequence_completion; 400 set->u.batch.cb_fn((spdk_bs_sequence_t *)set, set->u.batch.cb_arg, set->bserrno); 401 } else { 402 bs_request_set_complete(set); 403 } 404 } 405 } 406 407 spdk_bs_batch_t * 408 bs_sequence_to_batch(spdk_bs_sequence_t *seq, spdk_bs_sequence_cpl cb_fn, void *cb_arg) 409 { 410 struct spdk_bs_request_set *set = (struct spdk_bs_request_set *)seq; 411 412 set->u.batch.cb_fn = cb_fn; 413 set->u.batch.cb_arg = cb_arg; 414 set->u.batch.outstanding_ops = 0; 415 set->u.batch.batch_closed = 0; 416 417 set->cb_args.cb_fn = bs_batch_completion; 418 419 return set; 420 } 421 422 spdk_bs_user_op_t * 423 bs_user_op_alloc(struct spdk_io_channel *_channel, struct spdk_bs_cpl *cpl, 424 enum spdk_blob_op_type op_type, struct spdk_blob *blob, 425 void *payload, int iovcnt, uint64_t offset, uint64_t length) 426 { 427 struct spdk_bs_channel *channel; 428 struct spdk_bs_request_set *set; 429 struct spdk_bs_user_op_args *args; 430 431 channel = spdk_io_channel_get_ctx(_channel); 432 assert(channel != NULL); 433 set = TAILQ_FIRST(&channel->reqs); 434 if (!set) { 435 return NULL; 436 } 437 TAILQ_REMOVE(&channel->reqs, set, link); 438 439 set->cpl = *cpl; 440 set->channel = channel; 441 442 args = &set->u.user_op; 443 444 args->type = op_type; 445 args->iovcnt = iovcnt; 446 args->blob = blob; 447 args->offset = offset; 448 args->length = length; 449 args->payload = payload; 450 451 return (spdk_bs_user_op_t *)set; 452 } 453 454 void 455 bs_user_op_execute(spdk_bs_user_op_t *op) 456 { 457 struct spdk_bs_request_set *set; 458 struct spdk_bs_user_op_args *args; 459 struct spdk_io_channel *ch; 460 461 set = (struct spdk_bs_request_set *)op; 462 args = &set->u.user_op; 463 ch = spdk_io_channel_from_ctx(set->channel); 464 465 switch (args->type) { 466 case SPDK_BLOB_READ: 467 spdk_blob_io_read(args->blob, ch, args->payload, args->offset, args->length, 468 set->cpl.u.blob_basic.cb_fn, set->cpl.u.blob_basic.cb_arg); 469 break; 470 case SPDK_BLOB_WRITE: 471 spdk_blob_io_write(args->blob, ch, args->payload, args->offset, args->length, 472 set->cpl.u.blob_basic.cb_fn, set->cpl.u.blob_basic.cb_arg); 473 break; 474 case SPDK_BLOB_UNMAP: 475 spdk_blob_io_unmap(args->blob, ch, args->offset, args->length, 476 set->cpl.u.blob_basic.cb_fn, set->cpl.u.blob_basic.cb_arg); 477 break; 478 case SPDK_BLOB_WRITE_ZEROES: 479 spdk_blob_io_write_zeroes(args->blob, ch, args->offset, args->length, 480 set->cpl.u.blob_basic.cb_fn, set->cpl.u.blob_basic.cb_arg); 481 break; 482 case SPDK_BLOB_READV: 483 spdk_blob_io_readv(args->blob, ch, args->payload, args->iovcnt, 484 args->offset, args->length, 485 set->cpl.u.blob_basic.cb_fn, set->cpl.u.blob_basic.cb_arg); 486 break; 487 case SPDK_BLOB_WRITEV: 488 spdk_blob_io_writev(args->blob, ch, args->payload, args->iovcnt, 489 args->offset, args->length, 490 set->cpl.u.blob_basic.cb_fn, set->cpl.u.blob_basic.cb_arg); 491 break; 492 } 493 TAILQ_INSERT_TAIL(&set->channel->reqs, set, link); 494 } 495 496 void 497 bs_user_op_abort(spdk_bs_user_op_t *op) 498 { 499 struct spdk_bs_request_set *set; 500 501 set = (struct spdk_bs_request_set *)op; 502 503 set->cpl.u.blob_basic.cb_fn(set->cpl.u.blob_basic.cb_arg, -EIO); 504 TAILQ_INSERT_TAIL(&set->channel->reqs, set, link); 505 } 506 507 void 508 bs_sequence_to_batch_completion(void *cb_arg, int bserrno) 509 { 510 struct spdk_bs_request_set *set = (struct spdk_bs_request_set *)cb_arg; 511 512 set->u.batch.outstanding_ops--; 513 514 if (set->u.batch.outstanding_ops == 0 && set->u.batch.batch_closed) { 515 if (set->cb_args.cb_fn) { 516 set->cb_args.cb_fn(set->cb_args.channel, set->cb_args.cb_arg, bserrno); 517 } 518 } 519 } 520 521 SPDK_LOG_REGISTER_COMPONENT(blob_rw) 522