| 1 | // SPDX-License-Identifier: GPL-2.0 |
| 2 | /* |
| 3 | * nvme structure declarations and helper functions for the |
| 4 | * io_uring_cmd engine. |
| 5 | */ |
| 6 | |
| 7 | #include "nvme.h" |
| 8 | #include "../crc/crc-t10dif.h" |
| 9 | #include "../crc/crc64.h" |
| 10 | |
| 11 | static inline __u64 get_slba(struct nvme_data *data, __u64 offset) |
| 12 | { |
| 13 | if (data->lba_ext) |
| 14 | return offset / data->lba_ext; |
| 15 | |
| 16 | return offset >> data->lba_shift; |
| 17 | } |
| 18 | |
| 19 | static inline __u32 get_nlb(struct nvme_data *data, __u64 len) |
| 20 | { |
| 21 | if (data->lba_ext) |
| 22 | return len / data->lba_ext - 1; |
| 23 | |
| 24 | return (len >> data->lba_shift) - 1; |
| 25 | } |
| 26 | |
| 27 | static void fio_nvme_generate_pi_16b_guard(struct nvme_data *data, |
| 28 | struct io_u *io_u, |
| 29 | struct nvme_cmd_ext_io_opts *opts) |
| 30 | { |
| 31 | struct nvme_pi_data *pi_data = io_u->engine_data; |
| 32 | struct nvme_16b_guard_pif *pi; |
| 33 | unsigned char *buf = io_u->xfer_buf; |
| 34 | unsigned char *md_buf = io_u->mmap_data; |
| 35 | __u64 slba = get_slba(data, io_u->offset); |
| 36 | __u32 nlb = get_nlb(data, io_u->xfer_buflen) + 1; |
| 37 | __u32 lba_num = 0; |
| 38 | __u16 guard = 0; |
| 39 | |
| 40 | if (data->pi_loc) { |
| 41 | if (data->lba_ext) |
| 42 | pi_data->interval = data->lba_ext - data->ms; |
| 43 | else |
| 44 | pi_data->interval = 0; |
| 45 | } else { |
| 46 | if (data->lba_ext) |
| 47 | pi_data->interval = data->lba_ext - sizeof(struct nvme_16b_guard_pif); |
| 48 | else |
| 49 | pi_data->interval = data->ms - sizeof(struct nvme_16b_guard_pif); |
| 50 | } |
| 51 | |
| 52 | if (io_u->ddir != DDIR_WRITE) |
| 53 | return; |
| 54 | |
| 55 | while (lba_num < nlb) { |
| 56 | if (data->lba_ext) |
| 57 | pi = (struct nvme_16b_guard_pif *)(buf + pi_data->interval); |
| 58 | else |
| 59 | pi = (struct nvme_16b_guard_pif *)(md_buf + pi_data->interval); |
| 60 | |
| 61 | if (opts->io_flags & NVME_IO_PRINFO_PRCHK_GUARD) { |
| 62 | if (data->lba_ext) { |
| 63 | guard = fio_crc_t10dif(0, buf, pi_data->interval); |
| 64 | } else { |
| 65 | guard = fio_crc_t10dif(0, buf, data->lba_size); |
| 66 | guard = fio_crc_t10dif(guard, md_buf, pi_data->interval); |
| 67 | } |
| 68 | pi->guard = cpu_to_be16(guard); |
| 69 | } |
| 70 | |
| 71 | if (opts->io_flags & NVME_IO_PRINFO_PRCHK_APP) |
| 72 | pi->apptag = cpu_to_be16(pi_data->apptag); |
| 73 | |
| 74 | if (opts->io_flags & NVME_IO_PRINFO_PRCHK_REF) { |
| 75 | switch (data->pi_type) { |
| 76 | case NVME_NS_DPS_PI_TYPE1: |
| 77 | case NVME_NS_DPS_PI_TYPE2: |
| 78 | pi->srtag = cpu_to_be32((__u32)slba + lba_num); |
| 79 | break; |
| 80 | case NVME_NS_DPS_PI_TYPE3: |
| 81 | break; |
| 82 | } |
| 83 | } |
| 84 | if (data->lba_ext) { |
| 85 | buf += data->lba_ext; |
| 86 | } else { |
| 87 | buf += data->lba_size; |
| 88 | md_buf += data->ms; |
| 89 | } |
| 90 | lba_num++; |
| 91 | } |
| 92 | } |
| 93 | |
| 94 | static int fio_nvme_verify_pi_16b_guard(struct nvme_data *data, |
| 95 | struct io_u *io_u) |
| 96 | { |
| 97 | struct nvme_pi_data *pi_data = io_u->engine_data; |
| 98 | struct nvme_16b_guard_pif *pi; |
| 99 | struct fio_file *f = io_u->file; |
| 100 | unsigned char *buf = io_u->xfer_buf; |
| 101 | unsigned char *md_buf = io_u->mmap_data; |
| 102 | __u64 slba = get_slba(data, io_u->offset); |
| 103 | __u32 nlb = get_nlb(data, io_u->xfer_buflen) + 1; |
| 104 | __u32 lba_num = 0; |
| 105 | __u16 unmask_app, unmask_app_exp, guard = 0; |
| 106 | |
| 107 | while (lba_num < nlb) { |
| 108 | if (data->lba_ext) |
| 109 | pi = (struct nvme_16b_guard_pif *)(buf + pi_data->interval); |
| 110 | else |
| 111 | pi = (struct nvme_16b_guard_pif *)(md_buf + pi_data->interval); |
| 112 | |
| 113 | if (data->pi_type == NVME_NS_DPS_PI_TYPE3) { |
| 114 | if (pi->apptag == NVME_PI_APP_DISABLE && |
| 115 | pi->srtag == NVME_PI_REF_DISABLE) |
| 116 | goto next; |
| 117 | } else if (data->pi_type == NVME_NS_DPS_PI_TYPE1 || |
| 118 | data->pi_type == NVME_NS_DPS_PI_TYPE2) { |
| 119 | if (pi->apptag == NVME_PI_APP_DISABLE) |
| 120 | goto next; |
| 121 | } |
| 122 | |
| 123 | if (pi_data->io_flags & NVME_IO_PRINFO_PRCHK_GUARD) { |
| 124 | if (data->lba_ext) { |
| 125 | guard = fio_crc_t10dif(0, buf, pi_data->interval); |
| 126 | } else { |
| 127 | guard = fio_crc_t10dif(0, buf, data->lba_size); |
| 128 | guard = fio_crc_t10dif(guard, md_buf, pi_data->interval); |
| 129 | } |
| 130 | if (be16_to_cpu(pi->guard) != guard) { |
| 131 | log_err("%s: Guard compare error: LBA: %llu Expected=%x, Actual=%x\n", |
| 132 | f->file_name, (unsigned long long)slba, |
| 133 | guard, be16_to_cpu(pi->guard)); |
| 134 | return -EIO; |
| 135 | } |
| 136 | } |
| 137 | |
| 138 | if (pi_data->io_flags & NVME_IO_PRINFO_PRCHK_APP) { |
| 139 | unmask_app = be16_to_cpu(pi->apptag) & pi_data->apptag_mask; |
| 140 | unmask_app_exp = pi_data->apptag & pi_data->apptag_mask; |
| 141 | if (unmask_app != unmask_app_exp) { |
| 142 | log_err("%s: APPTAG compare error: LBA: %llu Expected=%x, Actual=%x\n", |
| 143 | f->file_name, (unsigned long long)slba, |
| 144 | unmask_app_exp, unmask_app); |
| 145 | return -EIO; |
| 146 | } |
| 147 | } |
| 148 | |
| 149 | if (pi_data->io_flags & NVME_IO_PRINFO_PRCHK_REF) { |
| 150 | switch (data->pi_type) { |
| 151 | case NVME_NS_DPS_PI_TYPE1: |
| 152 | case NVME_NS_DPS_PI_TYPE2: |
| 153 | if (be32_to_cpu(pi->srtag) != |
| 154 | ((__u32)slba + lba_num)) { |
| 155 | log_err("%s: REFTAG compare error: LBA: %llu Expected=%x, Actual=%x\n", |
| 156 | f->file_name, (unsigned long long)slba, |
| 157 | (__u32)slba + lba_num, |
| 158 | be32_to_cpu(pi->srtag)); |
| 159 | return -EIO; |
| 160 | } |
| 161 | break; |
| 162 | case NVME_NS_DPS_PI_TYPE3: |
| 163 | break; |
| 164 | } |
| 165 | } |
| 166 | next: |
| 167 | if (data->lba_ext) { |
| 168 | buf += data->lba_ext; |
| 169 | } else { |
| 170 | buf += data->lba_size; |
| 171 | md_buf += data->ms; |
| 172 | } |
| 173 | lba_num++; |
| 174 | } |
| 175 | |
| 176 | return 0; |
| 177 | } |
| 178 | |
| 179 | static void fio_nvme_generate_pi_64b_guard(struct nvme_data *data, |
| 180 | struct io_u *io_u, |
| 181 | struct nvme_cmd_ext_io_opts *opts) |
| 182 | { |
| 183 | struct nvme_pi_data *pi_data = io_u->engine_data; |
| 184 | struct nvme_64b_guard_pif *pi; |
| 185 | unsigned char *buf = io_u->xfer_buf; |
| 186 | unsigned char *md_buf = io_u->mmap_data; |
| 187 | uint64_t guard = 0; |
| 188 | __u64 slba = get_slba(data, io_u->offset); |
| 189 | __u32 nlb = get_nlb(data, io_u->xfer_buflen) + 1; |
| 190 | __u32 lba_num = 0; |
| 191 | |
| 192 | if (data->pi_loc) { |
| 193 | if (data->lba_ext) |
| 194 | pi_data->interval = data->lba_ext - data->ms; |
| 195 | else |
| 196 | pi_data->interval = 0; |
| 197 | } else { |
| 198 | if (data->lba_ext) |
| 199 | pi_data->interval = data->lba_ext - sizeof(struct nvme_64b_guard_pif); |
| 200 | else |
| 201 | pi_data->interval = data->ms - sizeof(struct nvme_64b_guard_pif); |
| 202 | } |
| 203 | |
| 204 | if (io_u->ddir != DDIR_WRITE) |
| 205 | return; |
| 206 | |
| 207 | while (lba_num < nlb) { |
| 208 | if (data->lba_ext) |
| 209 | pi = (struct nvme_64b_guard_pif *)(buf + pi_data->interval); |
| 210 | else |
| 211 | pi = (struct nvme_64b_guard_pif *)(md_buf + pi_data->interval); |
| 212 | |
| 213 | if (opts->io_flags & NVME_IO_PRINFO_PRCHK_GUARD) { |
| 214 | if (data->lba_ext) { |
| 215 | guard = fio_crc64_nvme(0, buf, pi_data->interval); |
| 216 | } else { |
| 217 | guard = fio_crc64_nvme(0, buf, data->lba_size); |
| 218 | guard = fio_crc64_nvme(guard, md_buf, pi_data->interval); |
| 219 | } |
| 220 | pi->guard = cpu_to_be64(guard); |
| 221 | } |
| 222 | |
| 223 | if (opts->io_flags & NVME_IO_PRINFO_PRCHK_APP) |
| 224 | pi->apptag = cpu_to_be16(pi_data->apptag); |
| 225 | |
| 226 | if (opts->io_flags & NVME_IO_PRINFO_PRCHK_REF) { |
| 227 | switch (data->pi_type) { |
| 228 | case NVME_NS_DPS_PI_TYPE1: |
| 229 | case NVME_NS_DPS_PI_TYPE2: |
| 230 | put_unaligned_be48(slba + lba_num, pi->srtag); |
| 231 | break; |
| 232 | case NVME_NS_DPS_PI_TYPE3: |
| 233 | break; |
| 234 | } |
| 235 | } |
| 236 | if (data->lba_ext) { |
| 237 | buf += data->lba_ext; |
| 238 | } else { |
| 239 | buf += data->lba_size; |
| 240 | md_buf += data->ms; |
| 241 | } |
| 242 | lba_num++; |
| 243 | } |
| 244 | } |
| 245 | |
| 246 | static int fio_nvme_verify_pi_64b_guard(struct nvme_data *data, |
| 247 | struct io_u *io_u) |
| 248 | { |
| 249 | struct nvme_pi_data *pi_data = io_u->engine_data; |
| 250 | struct nvme_64b_guard_pif *pi; |
| 251 | struct fio_file *f = io_u->file; |
| 252 | unsigned char *buf = io_u->xfer_buf; |
| 253 | unsigned char *md_buf = io_u->mmap_data; |
| 254 | __u64 slba = get_slba(data, io_u->offset); |
| 255 | __u64 ref, ref_exp, guard = 0; |
| 256 | __u32 nlb = get_nlb(data, io_u->xfer_buflen) + 1; |
| 257 | __u32 lba_num = 0; |
| 258 | __u16 unmask_app, unmask_app_exp; |
| 259 | |
| 260 | while (lba_num < nlb) { |
| 261 | if (data->lba_ext) |
| 262 | pi = (struct nvme_64b_guard_pif *)(buf + pi_data->interval); |
| 263 | else |
| 264 | pi = (struct nvme_64b_guard_pif *)(md_buf + pi_data->interval); |
| 265 | |
| 266 | if (data->pi_type == NVME_NS_DPS_PI_TYPE3) { |
| 267 | if (pi->apptag == NVME_PI_APP_DISABLE && |
| 268 | fio_nvme_pi_ref_escape(pi->srtag)) |
| 269 | goto next; |
| 270 | } else if (data->pi_type == NVME_NS_DPS_PI_TYPE1 || |
| 271 | data->pi_type == NVME_NS_DPS_PI_TYPE2) { |
| 272 | if (pi->apptag == NVME_PI_APP_DISABLE) |
| 273 | goto next; |
| 274 | } |
| 275 | |
| 276 | if (pi_data->io_flags & NVME_IO_PRINFO_PRCHK_GUARD) { |
| 277 | if (data->lba_ext) { |
| 278 | guard = fio_crc64_nvme(0, buf, pi_data->interval); |
| 279 | } else { |
| 280 | guard = fio_crc64_nvme(0, buf, data->lba_size); |
| 281 | guard = fio_crc64_nvme(guard, md_buf, pi_data->interval); |
| 282 | } |
| 283 | if (be64_to_cpu((uint64_t)pi->guard) != guard) { |
| 284 | log_err("%s: Guard compare error: LBA: %llu Expected=%llx, Actual=%llx\n", |
| 285 | f->file_name, (unsigned long long)slba, |
| 286 | guard, be64_to_cpu((uint64_t)pi->guard)); |
| 287 | return -EIO; |
| 288 | } |
| 289 | } |
| 290 | |
| 291 | if (pi_data->io_flags & NVME_IO_PRINFO_PRCHK_APP) { |
| 292 | unmask_app = be16_to_cpu(pi->apptag) & pi_data->apptag_mask; |
| 293 | unmask_app_exp = pi_data->apptag & pi_data->apptag_mask; |
| 294 | if (unmask_app != unmask_app_exp) { |
| 295 | log_err("%s: APPTAG compare error: LBA: %llu Expected=%x, Actual=%x\n", |
| 296 | f->file_name, (unsigned long long)slba, |
| 297 | unmask_app_exp, unmask_app); |
| 298 | return -EIO; |
| 299 | } |
| 300 | } |
| 301 | |
| 302 | if (pi_data->io_flags & NVME_IO_PRINFO_PRCHK_REF) { |
| 303 | switch (data->pi_type) { |
| 304 | case NVME_NS_DPS_PI_TYPE1: |
| 305 | case NVME_NS_DPS_PI_TYPE2: |
| 306 | ref = get_unaligned_be48(pi->srtag); |
| 307 | ref_exp = (slba + lba_num) & ((1ULL << 48) - 1); |
| 308 | if (ref != ref_exp) { |
| 309 | log_err("%s: REFTAG compare error: LBA: %llu Expected=%llx, Actual=%llx\n", |
| 310 | f->file_name, (unsigned long long)slba, |
| 311 | ref_exp, ref); |
| 312 | return -EIO; |
| 313 | } |
| 314 | break; |
| 315 | case NVME_NS_DPS_PI_TYPE3: |
| 316 | break; |
| 317 | } |
| 318 | } |
| 319 | next: |
| 320 | if (data->lba_ext) { |
| 321 | buf += data->lba_ext; |
| 322 | } else { |
| 323 | buf += data->lba_size; |
| 324 | md_buf += data->ms; |
| 325 | } |
| 326 | lba_num++; |
| 327 | } |
| 328 | |
| 329 | return 0; |
| 330 | } |
| 331 | void fio_nvme_uring_cmd_trim_prep(struct nvme_uring_cmd *cmd, struct io_u *io_u, |
| 332 | struct nvme_dsm_range *dsm) |
| 333 | { |
| 334 | struct nvme_data *data = FILE_ENG_DATA(io_u->file); |
| 335 | |
| 336 | cmd->opcode = nvme_cmd_dsm; |
| 337 | cmd->nsid = data->nsid; |
| 338 | cmd->cdw10 = 0; |
| 339 | cmd->cdw11 = NVME_ATTRIBUTE_DEALLOCATE; |
| 340 | cmd->addr = (__u64) (uintptr_t) dsm; |
| 341 | cmd->data_len = sizeof(*dsm); |
| 342 | |
| 343 | dsm->slba = get_slba(data, io_u); |
| 344 | /* nlb is a 1-based value for deallocate */ |
| 345 | dsm->nlb = get_nlb(data, io_u) + 1; |
| 346 | } |
| 347 | |
| 348 | int fio_nvme_uring_cmd_prep(struct nvme_uring_cmd *cmd, struct io_u *io_u, |
| 349 | struct iovec *iov, struct nvme_dsm_range *dsm) |
| 350 | { |
| 351 | struct nvme_data *data = FILE_ENG_DATA(io_u->file); |
| 352 | __u64 slba; |
| 353 | __u32 nlb; |
| 354 | |
| 355 | memset(cmd, 0, sizeof(struct nvme_uring_cmd)); |
| 356 | |
| 357 | switch (io_u->ddir) { |
| 358 | case DDIR_READ: |
| 359 | cmd->opcode = nvme_cmd_read; |
| 360 | break; |
| 361 | case DDIR_WRITE: |
| 362 | cmd->opcode = nvme_cmd_write; |
| 363 | break; |
| 364 | case DDIR_TRIM: |
| 365 | fio_nvme_uring_cmd_trim_prep(cmd, io_u, dsm); |
| 366 | return 0; |
| 367 | default: |
| 368 | return -ENOTSUP; |
| 369 | } |
| 370 | |
| 371 | slba = get_slba(data, io_u->offset); |
| 372 | nlb = get_nlb(data, io_u->xfer_buflen); |
| 373 | |
| 374 | /* cdw10 and cdw11 represent starting lba */ |
| 375 | cmd->cdw10 = slba & 0xffffffff; |
| 376 | cmd->cdw11 = slba >> 32; |
| 377 | /* cdw12 represent number of lba's for read/write */ |
| 378 | cmd->cdw12 = nlb | (io_u->dtype << 20); |
| 379 | cmd->cdw13 = io_u->dspec << 16; |
| 380 | if (iov) { |
| 381 | iov->iov_base = io_u->xfer_buf; |
| 382 | iov->iov_len = io_u->xfer_buflen; |
| 383 | cmd->addr = (__u64)(uintptr_t)iov; |
| 384 | cmd->data_len = 1; |
| 385 | } else { |
| 386 | cmd->addr = (__u64)(uintptr_t)io_u->xfer_buf; |
| 387 | cmd->data_len = io_u->xfer_buflen; |
| 388 | } |
| 389 | if (data->lba_shift && data->ms) { |
| 390 | cmd->metadata = (__u64)(uintptr_t)io_u->mmap_data; |
| 391 | cmd->metadata_len = (nlb + 1) * data->ms; |
| 392 | } |
| 393 | cmd->nsid = data->nsid; |
| 394 | return 0; |
| 395 | } |
| 396 | |
| 397 | void fio_nvme_pi_fill(struct nvme_uring_cmd *cmd, struct io_u *io_u, |
| 398 | struct nvme_cmd_ext_io_opts *opts) |
| 399 | { |
| 400 | struct nvme_data *data = FILE_ENG_DATA(io_u->file); |
| 401 | __u64 slba; |
| 402 | |
| 403 | slba = get_slba(data, io_u->offset); |
| 404 | cmd->cdw12 |= opts->io_flags; |
| 405 | |
| 406 | if (data->pi_type && !(opts->io_flags & NVME_IO_PRINFO_PRACT)) { |
| 407 | if (data->guard_type == NVME_NVM_NS_16B_GUARD) |
| 408 | fio_nvme_generate_pi_16b_guard(data, io_u, opts); |
| 409 | else if (data->guard_type == NVME_NVM_NS_64B_GUARD) |
| 410 | fio_nvme_generate_pi_64b_guard(data, io_u, opts); |
| 411 | } |
| 412 | |
| 413 | switch (data->pi_type) { |
| 414 | case NVME_NS_DPS_PI_TYPE1: |
| 415 | case NVME_NS_DPS_PI_TYPE2: |
| 416 | switch (data->guard_type) { |
| 417 | case NVME_NVM_NS_16B_GUARD: |
| 418 | if (opts->io_flags & NVME_IO_PRINFO_PRCHK_REF) |
| 419 | cmd->cdw14 = (__u32)slba; |
| 420 | break; |
| 421 | case NVME_NVM_NS_64B_GUARD: |
| 422 | if (opts->io_flags & NVME_IO_PRINFO_PRCHK_REF) { |
| 423 | cmd->cdw14 = (__u32)slba; |
| 424 | cmd->cdw3 = ((slba >> 32) & 0xffff); |
| 425 | } |
| 426 | break; |
| 427 | default: |
| 428 | break; |
| 429 | } |
| 430 | if (opts->io_flags & NVME_IO_PRINFO_PRCHK_APP) |
| 431 | cmd->cdw15 = (opts->apptag_mask << 16 | opts->apptag); |
| 432 | break; |
| 433 | case NVME_NS_DPS_PI_TYPE3: |
| 434 | if (opts->io_flags & NVME_IO_PRINFO_PRCHK_APP) |
| 435 | cmd->cdw15 = (opts->apptag_mask << 16 | opts->apptag); |
| 436 | break; |
| 437 | case NVME_NS_DPS_PI_NONE: |
| 438 | break; |
| 439 | } |
| 440 | } |
| 441 | |
| 442 | int fio_nvme_pi_verify(struct nvme_data *data, struct io_u *io_u) |
| 443 | { |
| 444 | int ret = 0; |
| 445 | |
| 446 | switch (data->guard_type) { |
| 447 | case NVME_NVM_NS_16B_GUARD: |
| 448 | ret = fio_nvme_verify_pi_16b_guard(data, io_u); |
| 449 | break; |
| 450 | case NVME_NVM_NS_64B_GUARD: |
| 451 | ret = fio_nvme_verify_pi_64b_guard(data, io_u); |
| 452 | break; |
| 453 | default: |
| 454 | break; |
| 455 | } |
| 456 | |
| 457 | return ret; |
| 458 | } |
| 459 | |
| 460 | static int nvme_identify(int fd, __u32 nsid, enum nvme_identify_cns cns, |
| 461 | enum nvme_csi csi, void *data) |
| 462 | { |
| 463 | struct nvme_passthru_cmd cmd = { |
| 464 | .opcode = nvme_admin_identify, |
| 465 | .nsid = nsid, |
| 466 | .addr = (__u64)(uintptr_t)data, |
| 467 | .data_len = NVME_IDENTIFY_DATA_SIZE, |
| 468 | .cdw10 = cns, |
| 469 | .cdw11 = csi << NVME_IDENTIFY_CSI_SHIFT, |
| 470 | .timeout_ms = NVME_DEFAULT_IOCTL_TIMEOUT, |
| 471 | }; |
| 472 | |
| 473 | return ioctl(fd, NVME_IOCTL_ADMIN_CMD, &cmd); |
| 474 | } |
| 475 | |
| 476 | int fio_nvme_get_info(struct fio_file *f, __u64 *nlba, __u32 pi_act, |
| 477 | struct nvme_data *data) |
| 478 | { |
| 479 | struct nvme_id_ns ns; |
| 480 | struct nvme_id_ctrl ctrl; |
| 481 | struct nvme_nvm_id_ns nvm_ns; |
| 482 | int namespace_id; |
| 483 | int fd, err; |
| 484 | __u32 format_idx, elbaf; |
| 485 | |
| 486 | if (f->filetype != FIO_TYPE_CHAR) { |
| 487 | log_err("ioengine io_uring_cmd only works with nvme ns " |
| 488 | "generic char devices (/dev/ngXnY)\n"); |
| 489 | return 1; |
| 490 | } |
| 491 | |
| 492 | fd = open(f->file_name, O_RDONLY); |
| 493 | if (fd < 0) |
| 494 | return -errno; |
| 495 | |
| 496 | namespace_id = ioctl(fd, NVME_IOCTL_ID); |
| 497 | if (namespace_id < 0) { |
| 498 | err = -errno; |
| 499 | log_err("%s: failed to fetch namespace-id\n", f->file_name); |
| 500 | goto out; |
| 501 | } |
| 502 | |
| 503 | err = nvme_identify(fd, 0, NVME_IDENTIFY_CNS_CTRL, NVME_CSI_NVM, &ctrl); |
| 504 | if (err) { |
| 505 | log_err("%s: failed to fetch identify ctrl\n", f->file_name); |
| 506 | goto out; |
| 507 | } |
| 508 | |
| 509 | /* |
| 510 | * Identify namespace to get namespace-id, namespace size in LBA's |
| 511 | * and LBA data size. |
| 512 | */ |
| 513 | err = nvme_identify(fd, namespace_id, NVME_IDENTIFY_CNS_NS, |
| 514 | NVME_CSI_NVM, &ns); |
| 515 | if (err) { |
| 516 | log_err("%s: failed to fetch identify namespace\n", |
| 517 | f->file_name); |
| 518 | goto out; |
| 519 | } |
| 520 | |
| 521 | data->nsid = namespace_id; |
| 522 | |
| 523 | /* |
| 524 | * 16 or 64 as maximum number of supported LBA formats. |
| 525 | * From flbas bit 0-3 indicates lsb and bit 5-6 indicates msb |
| 526 | * of the format index used to format the namespace. |
| 527 | */ |
| 528 | if (ns.nlbaf < 16) |
| 529 | format_idx = ns.flbas & 0xf; |
| 530 | else |
| 531 | format_idx = (ns.flbas & 0xf) + (((ns.flbas >> 5) & 0x3) << 4); |
| 532 | |
| 533 | data->lba_size = 1 << ns.lbaf[format_idx].ds; |
| 534 | data->ms = le16_to_cpu(ns.lbaf[format_idx].ms); |
| 535 | |
| 536 | /* Check for end to end data protection support */ |
| 537 | if (data->ms && (ns.dps & NVME_NS_DPS_PI_MASK)) |
| 538 | data->pi_type = (ns.dps & NVME_NS_DPS_PI_MASK); |
| 539 | |
| 540 | if (!data->pi_type) |
| 541 | goto check_elba; |
| 542 | |
| 543 | if (ctrl.ctratt & NVME_CTRL_CTRATT_ELBAS) { |
| 544 | err = nvme_identify(fd, namespace_id, NVME_IDENTIFY_CNS_CSI_NS, |
| 545 | NVME_CSI_NVM, &nvm_ns); |
| 546 | if (err) { |
| 547 | log_err("%s: failed to fetch identify nvm namespace\n", |
| 548 | f->file_name); |
| 549 | goto out; |
| 550 | } |
| 551 | |
| 552 | elbaf = le32_to_cpu(nvm_ns.elbaf[format_idx]); |
| 553 | |
| 554 | /* Currently we don't support storage tags */ |
| 555 | if (elbaf & NVME_ID_NS_NVM_STS_MASK) { |
| 556 | log_err("%s: Storage tag not supported\n", |
| 557 | f->file_name); |
| 558 | err = -ENOTSUP; |
| 559 | goto out; |
| 560 | } |
| 561 | |
| 562 | data->guard_type = (elbaf >> NVME_ID_NS_NVM_GUARD_SHIFT) & |
| 563 | NVME_ID_NS_NVM_GUARD_MASK; |
| 564 | |
| 565 | /* No 32 bit guard, as storage tag is mandatory for it */ |
| 566 | switch (data->guard_type) { |
| 567 | case NVME_NVM_NS_16B_GUARD: |
| 568 | data->pi_size = sizeof(struct nvme_16b_guard_pif); |
| 569 | break; |
| 570 | case NVME_NVM_NS_64B_GUARD: |
| 571 | data->pi_size = sizeof(struct nvme_64b_guard_pif); |
| 572 | break; |
| 573 | default: |
| 574 | break; |
| 575 | } |
| 576 | } else { |
| 577 | data->guard_type = NVME_NVM_NS_16B_GUARD; |
| 578 | data->pi_size = sizeof(struct nvme_16b_guard_pif); |
| 579 | } |
| 580 | |
| 581 | /* |
| 582 | * when PRACT bit is set to 1, and metadata size is equal to protection |
| 583 | * information size, controller inserts and removes PI for write and |
| 584 | * read commands respectively. |
| 585 | */ |
| 586 | if (pi_act && data->ms == data->pi_size) |
| 587 | data->ms = 0; |
| 588 | |
| 589 | data->pi_loc = (ns.dps & NVME_NS_DPS_PI_FIRST); |
| 590 | |
| 591 | check_elba: |
| 592 | /* |
| 593 | * Bit 4 for flbas indicates if metadata is transferred at the end of |
| 594 | * logical block creating an extended LBA. |
| 595 | */ |
| 596 | if (data->ms && ((ns.flbas >> 4) & 0x1)) |
| 597 | data->lba_ext = data->lba_size + data->ms; |
| 598 | else |
| 599 | data->lba_shift = ilog2(data->lba_size); |
| 600 | |
| 601 | *nlba = ns.nsze; |
| 602 | |
| 603 | out: |
| 604 | close(fd); |
| 605 | return err; |
| 606 | } |
| 607 | |
| 608 | int fio_nvme_get_zoned_model(struct thread_data *td, struct fio_file *f, |
| 609 | enum zbd_zoned_model *model) |
| 610 | { |
| 611 | struct nvme_data *data = FILE_ENG_DATA(f); |
| 612 | struct nvme_id_ns ns; |
| 613 | struct nvme_passthru_cmd cmd; |
| 614 | int fd, ret = 0; |
| 615 | |
| 616 | if (f->filetype != FIO_TYPE_CHAR) |
| 617 | return -EINVAL; |
| 618 | |
| 619 | /* File is not yet opened */ |
| 620 | fd = open(f->file_name, O_RDONLY | O_LARGEFILE); |
| 621 | if (fd < 0) |
| 622 | return -errno; |
| 623 | |
| 624 | /* Using nvme_id_ns for data as sizes are same */ |
| 625 | ret = nvme_identify(fd, data->nsid, NVME_IDENTIFY_CNS_CSI_CTRL, |
| 626 | NVME_CSI_ZNS, &ns); |
| 627 | if (ret) { |
| 628 | *model = ZBD_NONE; |
| 629 | goto out; |
| 630 | } |
| 631 | |
| 632 | memset(&cmd, 0, sizeof(struct nvme_passthru_cmd)); |
| 633 | |
| 634 | /* Using nvme_id_ns for data as sizes are same */ |
| 635 | ret = nvme_identify(fd, data->nsid, NVME_IDENTIFY_CNS_CSI_NS, |
| 636 | NVME_CSI_ZNS, &ns); |
| 637 | if (ret) { |
| 638 | *model = ZBD_NONE; |
| 639 | goto out; |
| 640 | } |
| 641 | |
| 642 | *model = ZBD_HOST_MANAGED; |
| 643 | out: |
| 644 | close(fd); |
| 645 | return 0; |
| 646 | } |
| 647 | |
| 648 | static int nvme_report_zones(int fd, __u32 nsid, __u64 slba, __u32 zras_feat, |
| 649 | __u32 data_len, void *data) |
| 650 | { |
| 651 | struct nvme_passthru_cmd cmd = { |
| 652 | .opcode = nvme_zns_cmd_mgmt_recv, |
| 653 | .nsid = nsid, |
| 654 | .addr = (__u64)(uintptr_t)data, |
| 655 | .data_len = data_len, |
| 656 | .cdw10 = slba & 0xffffffff, |
| 657 | .cdw11 = slba >> 32, |
| 658 | .cdw12 = (data_len >> 2) - 1, |
| 659 | .cdw13 = NVME_ZNS_ZRA_REPORT_ZONES | zras_feat, |
| 660 | .timeout_ms = NVME_DEFAULT_IOCTL_TIMEOUT, |
| 661 | }; |
| 662 | |
| 663 | return ioctl(fd, NVME_IOCTL_IO_CMD, &cmd); |
| 664 | } |
| 665 | |
| 666 | int fio_nvme_report_zones(struct thread_data *td, struct fio_file *f, |
| 667 | uint64_t offset, struct zbd_zone *zbdz, |
| 668 | unsigned int nr_zones) |
| 669 | { |
| 670 | struct nvme_data *data = FILE_ENG_DATA(f); |
| 671 | struct nvme_zone_report *zr; |
| 672 | struct nvme_zns_id_ns zns_ns; |
| 673 | struct nvme_id_ns ns; |
| 674 | unsigned int i = 0, j, zones_fetched = 0; |
| 675 | unsigned int max_zones, zones_chunks = 1024; |
| 676 | int fd, ret = 0; |
| 677 | __u32 zr_len; |
| 678 | __u64 zlen; |
| 679 | |
| 680 | /* File is not yet opened */ |
| 681 | fd = open(f->file_name, O_RDONLY | O_LARGEFILE); |
| 682 | if (fd < 0) |
| 683 | return -errno; |
| 684 | |
| 685 | zones_fetched = 0; |
| 686 | zr_len = sizeof(*zr) + (zones_chunks * sizeof(struct nvme_zns_desc)); |
| 687 | zr = calloc(1, zr_len); |
| 688 | if (!zr) { |
| 689 | close(fd); |
| 690 | return -ENOMEM; |
| 691 | } |
| 692 | |
| 693 | ret = nvme_identify(fd, data->nsid, NVME_IDENTIFY_CNS_NS, |
| 694 | NVME_CSI_NVM, &ns); |
| 695 | if (ret) { |
| 696 | log_err("%s: nvme_identify_ns failed, err=%d\n", f->file_name, |
| 697 | ret); |
| 698 | goto out; |
| 699 | } |
| 700 | |
| 701 | ret = nvme_identify(fd, data->nsid, NVME_IDENTIFY_CNS_CSI_NS, |
| 702 | NVME_CSI_ZNS, &zns_ns); |
| 703 | if (ret) { |
| 704 | log_err("%s: nvme_zns_identify_ns failed, err=%d\n", |
| 705 | f->file_name, ret); |
| 706 | goto out; |
| 707 | } |
| 708 | zlen = zns_ns.lbafe[ns.flbas & 0x0f].zsze << data->lba_shift; |
| 709 | |
| 710 | max_zones = (f->real_file_size - offset) / zlen; |
| 711 | if (max_zones < nr_zones) |
| 712 | nr_zones = max_zones; |
| 713 | |
| 714 | if (nr_zones < zones_chunks) |
| 715 | zones_chunks = nr_zones; |
| 716 | |
| 717 | while (zones_fetched < nr_zones) { |
| 718 | if (zones_fetched + zones_chunks >= nr_zones) { |
| 719 | zones_chunks = nr_zones - zones_fetched; |
| 720 | zr_len = sizeof(*zr) + (zones_chunks * sizeof(struct nvme_zns_desc)); |
| 721 | } |
| 722 | ret = nvme_report_zones(fd, data->nsid, offset >> data->lba_shift, |
| 723 | NVME_ZNS_ZRAS_FEAT_ERZ, zr_len, (void *)zr); |
| 724 | if (ret) { |
| 725 | log_err("%s: nvme_zns_report_zones failed, err=%d\n", |
| 726 | f->file_name, ret); |
| 727 | goto out; |
| 728 | } |
| 729 | |
| 730 | /* Transform the zone-report */ |
| 731 | for (j = 0; j < zr->nr_zones; j++, i++) { |
| 732 | struct nvme_zns_desc *desc = (struct nvme_zns_desc *)&(zr->entries[j]); |
| 733 | |
| 734 | zbdz[i].start = desc->zslba << data->lba_shift; |
| 735 | zbdz[i].len = zlen; |
| 736 | zbdz[i].wp = desc->wp << data->lba_shift; |
| 737 | zbdz[i].capacity = desc->zcap << data->lba_shift; |
| 738 | |
| 739 | /* Zone Type is stored in first 4 bits. */ |
| 740 | switch (desc->zt & 0x0f) { |
| 741 | case NVME_ZONE_TYPE_SEQWRITE_REQ: |
| 742 | zbdz[i].type = ZBD_ZONE_TYPE_SWR; |
| 743 | break; |
| 744 | default: |
| 745 | log_err("%s: invalid type for zone at offset %llu.\n", |
| 746 | f->file_name, (unsigned long long) desc->zslba); |
| 747 | ret = -EIO; |
| 748 | goto out; |
| 749 | } |
| 750 | |
| 751 | /* Zone State is stored in last 4 bits. */ |
| 752 | switch (desc->zs >> 4) { |
| 753 | case NVME_ZNS_ZS_EMPTY: |
| 754 | zbdz[i].cond = ZBD_ZONE_COND_EMPTY; |
| 755 | break; |
| 756 | case NVME_ZNS_ZS_IMPL_OPEN: |
| 757 | zbdz[i].cond = ZBD_ZONE_COND_IMP_OPEN; |
| 758 | break; |
| 759 | case NVME_ZNS_ZS_EXPL_OPEN: |
| 760 | zbdz[i].cond = ZBD_ZONE_COND_EXP_OPEN; |
| 761 | break; |
| 762 | case NVME_ZNS_ZS_CLOSED: |
| 763 | zbdz[i].cond = ZBD_ZONE_COND_CLOSED; |
| 764 | break; |
| 765 | case NVME_ZNS_ZS_FULL: |
| 766 | zbdz[i].cond = ZBD_ZONE_COND_FULL; |
| 767 | break; |
| 768 | case NVME_ZNS_ZS_READ_ONLY: |
| 769 | case NVME_ZNS_ZS_OFFLINE: |
| 770 | default: |
| 771 | /* Treat all these conditions as offline (don't use!) */ |
| 772 | zbdz[i].cond = ZBD_ZONE_COND_OFFLINE; |
| 773 | zbdz[i].wp = zbdz[i].start; |
| 774 | } |
| 775 | } |
| 776 | zones_fetched += zr->nr_zones; |
| 777 | offset += zr->nr_zones * zlen; |
| 778 | } |
| 779 | |
| 780 | ret = zones_fetched; |
| 781 | out: |
| 782 | free(zr); |
| 783 | close(fd); |
| 784 | |
| 785 | return ret; |
| 786 | } |
| 787 | |
| 788 | int fio_nvme_reset_wp(struct thread_data *td, struct fio_file *f, |
| 789 | uint64_t offset, uint64_t length) |
| 790 | { |
| 791 | struct nvme_data *data = FILE_ENG_DATA(f); |
| 792 | unsigned int nr_zones; |
| 793 | unsigned long long zslba; |
| 794 | int i, fd, ret = 0; |
| 795 | |
| 796 | /* If the file is not yet opened, open it for this function. */ |
| 797 | fd = f->fd; |
| 798 | if (fd < 0) { |
| 799 | fd = open(f->file_name, O_RDWR | O_LARGEFILE); |
| 800 | if (fd < 0) |
| 801 | return -errno; |
| 802 | } |
| 803 | |
| 804 | zslba = offset >> data->lba_shift; |
| 805 | nr_zones = (length + td->o.zone_size - 1) / td->o.zone_size; |
| 806 | |
| 807 | for (i = 0; i < nr_zones; i++, zslba += (td->o.zone_size >> data->lba_shift)) { |
| 808 | struct nvme_passthru_cmd cmd = { |
| 809 | .opcode = nvme_zns_cmd_mgmt_send, |
| 810 | .nsid = data->nsid, |
| 811 | .cdw10 = zslba & 0xffffffff, |
| 812 | .cdw11 = zslba >> 32, |
| 813 | .cdw13 = NVME_ZNS_ZSA_RESET, |
| 814 | .addr = (__u64)(uintptr_t)NULL, |
| 815 | .data_len = 0, |
| 816 | .timeout_ms = NVME_DEFAULT_IOCTL_TIMEOUT, |
| 817 | }; |
| 818 | |
| 819 | ret = ioctl(fd, NVME_IOCTL_IO_CMD, &cmd); |
| 820 | } |
| 821 | |
| 822 | if (f->fd < 0) |
| 823 | close(fd); |
| 824 | return -ret; |
| 825 | } |
| 826 | |
| 827 | int fio_nvme_get_max_open_zones(struct thread_data *td, struct fio_file *f, |
| 828 | unsigned int *max_open_zones) |
| 829 | { |
| 830 | struct nvme_data *data = FILE_ENG_DATA(f); |
| 831 | struct nvme_zns_id_ns zns_ns; |
| 832 | int fd, ret = 0; |
| 833 | |
| 834 | fd = open(f->file_name, O_RDONLY | O_LARGEFILE); |
| 835 | if (fd < 0) |
| 836 | return -errno; |
| 837 | |
| 838 | ret = nvme_identify(fd, data->nsid, NVME_IDENTIFY_CNS_CSI_NS, |
| 839 | NVME_CSI_ZNS, &zns_ns); |
| 840 | if (ret) { |
| 841 | log_err("%s: nvme_zns_identify_ns failed, err=%d\n", |
| 842 | f->file_name, ret); |
| 843 | goto out; |
| 844 | } |
| 845 | |
| 846 | *max_open_zones = zns_ns.mor + 1; |
| 847 | out: |
| 848 | close(fd); |
| 849 | return ret; |
| 850 | } |
| 851 | |
| 852 | static inline int nvme_fdp_reclaim_unit_handle_status(int fd, __u32 nsid, |
| 853 | __u32 data_len, void *data) |
| 854 | { |
| 855 | struct nvme_passthru_cmd cmd = { |
| 856 | .opcode = nvme_cmd_io_mgmt_recv, |
| 857 | .nsid = nsid, |
| 858 | .addr = (__u64)(uintptr_t)data, |
| 859 | .data_len = data_len, |
| 860 | .cdw10 = 1, |
| 861 | .cdw11 = (data_len >> 2) - 1, |
| 862 | }; |
| 863 | |
| 864 | return ioctl(fd, NVME_IOCTL_IO_CMD, &cmd); |
| 865 | } |
| 866 | |
| 867 | int fio_nvme_iomgmt_ruhs(struct thread_data *td, struct fio_file *f, |
| 868 | struct nvme_fdp_ruh_status *ruhs, __u32 bytes) |
| 869 | { |
| 870 | struct nvme_data *data = FILE_ENG_DATA(f); |
| 871 | int fd, ret; |
| 872 | |
| 873 | fd = open(f->file_name, O_RDONLY | O_LARGEFILE); |
| 874 | if (fd < 0) |
| 875 | return -errno; |
| 876 | |
| 877 | ret = nvme_fdp_reclaim_unit_handle_status(fd, data->nsid, bytes, ruhs); |
| 878 | if (ret) { |
| 879 | log_err("%s: nvme_fdp_reclaim_unit_handle_status failed, err=%d\n", |
| 880 | f->file_name, ret); |
| 881 | errno = ENOTSUP; |
| 882 | } else |
| 883 | errno = 0; |
| 884 | |
| 885 | ret = -errno; |
| 886 | close(fd); |
| 887 | return ret; |
| 888 | } |