1 /* 2 * QEMU NVM Express 3 * 4 * Copyright (c) 2012 Intel Corporation 5 * Copyright (c) 2021 Minwoo Im 6 * Copyright (c) 2021 Samsung Electronics Co., Ltd. 7 * 8 * Authors: 9 * Keith Busch <kbusch@kernel.org> 10 * Klaus Jensen <k.jensen@samsung.com> 11 * Gollu Appalanaidu <anaidu.gollu@samsung.com> 12 * Dmitry Fomichev <dmitry.fomichev@wdc.com> 13 * Minwoo Im <minwoo.im.dev@gmail.com> 14 * 15 * This code is licensed under the GNU GPL v2 or later. 16 */ 17 18 #ifndef HW_NVME_NVME_H 19 #define HW_NVME_NVME_H 20 21 #include "qemu/uuid.h" 22 #include "hw/pci/pci_device.h" 23 #include "hw/block/block.h" 24 25 #include "block/nvme.h" 26 27 #define NVME_MAX_CONTROLLERS 256 28 #define NVME_MAX_NAMESPACES 256 29 #define NVME_EUI64_DEFAULT ((uint64_t)0x5254000000000000) 30 #define NVME_FDP_MAX_EVENTS 63 31 #define NVME_FDP_MAXPIDS 128 32 33 /* 34 * The controller only supports Submission and Completion Queue Entry Sizes of 35 * 64 and 16 bytes respectively. 36 */ 37 #define NVME_SQES 6 38 #define NVME_CQES 4 39 40 QEMU_BUILD_BUG_ON(NVME_MAX_NAMESPACES > NVME_NSID_BROADCAST - 1); 41 42 typedef struct NvmeCtrl NvmeCtrl; 43 typedef struct NvmeNamespace NvmeNamespace; 44 45 #define TYPE_NVME_BUS "nvme-bus" 46 OBJECT_DECLARE_SIMPLE_TYPE(NvmeBus, NVME_BUS) 47 48 typedef struct NvmeBus { 49 BusState parent_bus; 50 } NvmeBus; 51 52 #define TYPE_NVME_SUBSYS "nvme-subsys" 53 #define NVME_SUBSYS(obj) \ 54 OBJECT_CHECK(NvmeSubsystem, (obj), TYPE_NVME_SUBSYS) 55 #define SUBSYS_SLOT_RSVD (void *)0xFFFF 56 57 typedef struct NvmeReclaimUnit { 58 uint64_t ruamw; 59 } NvmeReclaimUnit; 60 61 typedef struct NvmeRuHandle { 62 uint8_t ruht; 63 uint8_t ruha; 64 uint64_t event_filter; 65 uint8_t lbafi; 66 uint64_t ruamw; 67 68 /* reclaim units indexed by reclaim group */ 69 NvmeReclaimUnit *rus; 70 } NvmeRuHandle; 71 72 typedef struct NvmeFdpEventBuffer { 73 NvmeFdpEvent events[NVME_FDP_MAX_EVENTS]; 74 unsigned int nelems; 75 unsigned int start; 76 unsigned int next; 77 } NvmeFdpEventBuffer; 78 79 typedef struct NvmeEnduranceGroup { 80 uint8_t event_conf; 81 82 struct { 83 NvmeFdpEventBuffer host_events, ctrl_events; 84 85 uint16_t nruh; 86 uint16_t nrg; 87 uint8_t rgif; 88 uint64_t runs; 89 90 uint64_t hbmw; 91 uint64_t mbmw; 92 uint64_t mbe; 93 94 bool enabled; 95 96 NvmeRuHandle *ruhs; 97 } fdp; 98 } NvmeEnduranceGroup; 99 100 typedef struct NvmeSubsystem { 101 DeviceState parent_obj; 102 NvmeBus bus; 103 uint8_t subnqn[256]; 104 char *serial; 105 106 NvmeCtrl *ctrls[NVME_MAX_CONTROLLERS]; 107 NvmeNamespace *namespaces[NVME_MAX_NAMESPACES + 1]; 108 NvmeEnduranceGroup endgrp; 109 110 struct { 111 char *nqn; 112 113 struct { 114 bool enabled; 115 uint64_t runs; 116 uint16_t nruh; 117 uint32_t nrg; 118 } fdp; 119 } params; 120 } NvmeSubsystem; 121 122 int nvme_subsys_register_ctrl(NvmeCtrl *n, Error **errp); 123 void nvme_subsys_unregister_ctrl(NvmeSubsystem *subsys, NvmeCtrl *n); 124 125 static inline NvmeCtrl *nvme_subsys_ctrl(NvmeSubsystem *subsys, 126 uint32_t cntlid) 127 { 128 if (!subsys || cntlid >= NVME_MAX_CONTROLLERS) { 129 return NULL; 130 } 131 132 if (subsys->ctrls[cntlid] == SUBSYS_SLOT_RSVD) { 133 return NULL; 134 } 135 136 return subsys->ctrls[cntlid]; 137 } 138 139 static inline NvmeNamespace *nvme_subsys_ns(NvmeSubsystem *subsys, 140 uint32_t nsid) 141 { 142 if (!subsys || !nsid || nsid > NVME_MAX_NAMESPACES) { 143 return NULL; 144 } 145 146 return subsys->namespaces[nsid]; 147 } 148 149 #define TYPE_NVME_NS "nvme-ns" 150 #define NVME_NS(obj) \ 151 OBJECT_CHECK(NvmeNamespace, (obj), TYPE_NVME_NS) 152 153 typedef struct NvmeZone { 154 NvmeZoneDescr d; 155 uint64_t w_ptr; 156 QTAILQ_ENTRY(NvmeZone) entry; 157 } NvmeZone; 158 159 #define FDP_EVT_MAX 0xff 160 #define NVME_FDP_MAX_NS_RUHS 32u 161 #define FDPVSS 0 162 163 static const uint8_t nvme_fdp_evf_shifts[FDP_EVT_MAX] = { 164 /* Host events */ 165 [FDP_EVT_RU_NOT_FULLY_WRITTEN] = 0, 166 [FDP_EVT_RU_ATL_EXCEEDED] = 1, 167 [FDP_EVT_CTRL_RESET_RUH] = 2, 168 [FDP_EVT_INVALID_PID] = 3, 169 /* CTRL events */ 170 [FDP_EVT_MEDIA_REALLOC] = 32, 171 [FDP_EVT_RUH_IMPLICIT_RU_CHANGE] = 33, 172 }; 173 174 #define NGUID_LEN 16 175 176 typedef struct { 177 uint8_t data[NGUID_LEN]; 178 } NvmeNGUID; 179 180 bool nvme_nguid_is_null(const NvmeNGUID *nguid); 181 182 extern const PropertyInfo qdev_prop_nguid; 183 184 #define DEFINE_PROP_NGUID_NODEFAULT(_name, _state, _field) \ 185 DEFINE_PROP(_name, _state, _field, qdev_prop_nguid, NvmeNGUID) 186 187 typedef struct NvmeNamespaceParams { 188 bool detached; 189 bool shared; 190 uint32_t nsid; 191 QemuUUID uuid; 192 NvmeNGUID nguid; 193 uint64_t eui64; 194 bool eui64_default; 195 196 uint16_t ms; 197 uint8_t mset; 198 uint8_t pi; 199 uint8_t pil; 200 uint8_t pif; 201 202 uint16_t mssrl; 203 uint32_t mcl; 204 uint8_t msrc; 205 206 bool zoned; 207 bool cross_zone_read; 208 uint64_t zone_size_bs; 209 uint64_t zone_cap_bs; 210 uint32_t max_active_zones; 211 uint32_t max_open_zones; 212 uint32_t zd_extension_size; 213 214 uint32_t numzrwa; 215 uint64_t zrwas; 216 uint64_t zrwafg; 217 218 struct { 219 char *ruhs; 220 } fdp; 221 } NvmeNamespaceParams; 222 223 typedef struct NvmeNamespace { 224 DeviceState parent_obj; 225 BlockConf blkconf; 226 int32_t bootindex; 227 int64_t size; 228 int64_t moff; 229 NvmeIdNs id_ns; 230 NvmeIdNsNvm id_ns_nvm; 231 NvmeLBAF lbaf; 232 unsigned int nlbaf; 233 size_t lbasz; 234 const uint32_t *iocs; 235 uint8_t csi; 236 uint16_t status; 237 int attached; 238 uint8_t pif; 239 240 struct { 241 uint16_t zrwas; 242 uint16_t zrwafg; 243 uint32_t numzrwa; 244 } zns; 245 246 QTAILQ_ENTRY(NvmeNamespace) entry; 247 248 NvmeIdNsZoned *id_ns_zoned; 249 NvmeZone *zone_array; 250 QTAILQ_HEAD(, NvmeZone) exp_open_zones; 251 QTAILQ_HEAD(, NvmeZone) imp_open_zones; 252 QTAILQ_HEAD(, NvmeZone) closed_zones; 253 QTAILQ_HEAD(, NvmeZone) full_zones; 254 uint32_t num_zones; 255 uint64_t zone_size; 256 uint64_t zone_capacity; 257 uint32_t zone_size_log2; 258 uint8_t *zd_extensions; 259 int32_t nr_open_zones; 260 int32_t nr_active_zones; 261 262 NvmeNamespaceParams params; 263 NvmeSubsystem *subsys; 264 NvmeEnduranceGroup *endgrp; 265 266 struct { 267 uint32_t err_rec; 268 } features; 269 270 struct { 271 uint16_t nphs; 272 /* reclaim unit handle identifiers indexed by placement handle */ 273 uint16_t *phs; 274 } fdp; 275 } NvmeNamespace; 276 277 static inline uint32_t nvme_nsid(NvmeNamespace *ns) 278 { 279 if (ns) { 280 return ns->params.nsid; 281 } 282 283 return 0; 284 } 285 286 static inline size_t nvme_l2b(NvmeNamespace *ns, uint64_t lba) 287 { 288 return lba << ns->lbaf.ds; 289 } 290 291 static inline size_t nvme_m2b(NvmeNamespace *ns, uint64_t lba) 292 { 293 return ns->lbaf.ms * lba; 294 } 295 296 static inline int64_t nvme_moff(NvmeNamespace *ns, uint64_t lba) 297 { 298 return ns->moff + nvme_m2b(ns, lba); 299 } 300 301 static inline bool nvme_ns_ext(NvmeNamespace *ns) 302 { 303 return !!NVME_ID_NS_FLBAS_EXTENDED(ns->id_ns.flbas); 304 } 305 306 static inline NvmeZoneState nvme_get_zone_state(NvmeZone *zone) 307 { 308 return zone->d.zs >> 4; 309 } 310 311 static inline void nvme_set_zone_state(NvmeZone *zone, NvmeZoneState state) 312 { 313 zone->d.zs = state << 4; 314 } 315 316 static inline uint64_t nvme_zone_rd_boundary(NvmeNamespace *ns, NvmeZone *zone) 317 { 318 return zone->d.zslba + ns->zone_size; 319 } 320 321 static inline uint64_t nvme_zone_wr_boundary(NvmeZone *zone) 322 { 323 return zone->d.zslba + zone->d.zcap; 324 } 325 326 static inline bool nvme_wp_is_valid(NvmeZone *zone) 327 { 328 uint8_t st = nvme_get_zone_state(zone); 329 330 return st != NVME_ZONE_STATE_FULL && 331 st != NVME_ZONE_STATE_READ_ONLY && 332 st != NVME_ZONE_STATE_OFFLINE; 333 } 334 335 static inline uint8_t *nvme_get_zd_extension(NvmeNamespace *ns, 336 uint32_t zone_idx) 337 { 338 return &ns->zd_extensions[zone_idx * ns->params.zd_extension_size]; 339 } 340 341 static inline void nvme_aor_inc_open(NvmeNamespace *ns) 342 { 343 assert(ns->nr_open_zones >= 0); 344 if (ns->params.max_open_zones) { 345 ns->nr_open_zones++; 346 assert(ns->nr_open_zones <= ns->params.max_open_zones); 347 } 348 } 349 350 static inline void nvme_aor_dec_open(NvmeNamespace *ns) 351 { 352 if (ns->params.max_open_zones) { 353 assert(ns->nr_open_zones > 0); 354 ns->nr_open_zones--; 355 } 356 assert(ns->nr_open_zones >= 0); 357 } 358 359 static inline void nvme_aor_inc_active(NvmeNamespace *ns) 360 { 361 assert(ns->nr_active_zones >= 0); 362 if (ns->params.max_active_zones) { 363 ns->nr_active_zones++; 364 assert(ns->nr_active_zones <= ns->params.max_active_zones); 365 } 366 } 367 368 static inline void nvme_aor_dec_active(NvmeNamespace *ns) 369 { 370 if (ns->params.max_active_zones) { 371 assert(ns->nr_active_zones > 0); 372 ns->nr_active_zones--; 373 assert(ns->nr_active_zones >= ns->nr_open_zones); 374 } 375 assert(ns->nr_active_zones >= 0); 376 } 377 378 static inline void nvme_fdp_stat_inc(uint64_t *a, uint64_t b) 379 { 380 uint64_t ret = *a + b; 381 *a = ret < *a ? UINT64_MAX : ret; 382 } 383 384 void nvme_ns_init_format(NvmeNamespace *ns); 385 int nvme_ns_setup(NvmeNamespace *ns, Error **errp); 386 void nvme_ns_drain(NvmeNamespace *ns); 387 void nvme_ns_shutdown(NvmeNamespace *ns); 388 void nvme_ns_cleanup(NvmeNamespace *ns); 389 390 typedef struct NvmeAsyncEvent { 391 QTAILQ_ENTRY(NvmeAsyncEvent) entry; 392 NvmeAerResult result; 393 } NvmeAsyncEvent; 394 395 enum { 396 NVME_SG_ALLOC = 1 << 0, 397 NVME_SG_DMA = 1 << 1, 398 }; 399 400 typedef struct NvmeSg { 401 int flags; 402 403 union { 404 QEMUSGList qsg; 405 QEMUIOVector iov; 406 }; 407 } NvmeSg; 408 409 typedef enum NvmeTxDirection { 410 NVME_TX_DIRECTION_TO_DEVICE = 0, 411 NVME_TX_DIRECTION_FROM_DEVICE = 1, 412 } NvmeTxDirection; 413 414 typedef struct NvmeRequest { 415 struct NvmeSQueue *sq; 416 struct NvmeNamespace *ns; 417 BlockAIOCB *aiocb; 418 uint16_t status; 419 void *opaque; 420 NvmeCqe cqe; 421 NvmeCmd cmd; 422 BlockAcctCookie acct; 423 NvmeSg sg; 424 QTAILQ_ENTRY(NvmeRequest)entry; 425 } NvmeRequest; 426 427 typedef struct NvmeBounceContext { 428 NvmeRequest *req; 429 430 struct { 431 QEMUIOVector iov; 432 uint8_t *bounce; 433 } data, mdata; 434 } NvmeBounceContext; 435 436 static inline const char *nvme_adm_opc_str(uint8_t opc) 437 { 438 switch (opc) { 439 case NVME_ADM_CMD_DELETE_SQ: return "NVME_ADM_CMD_DELETE_SQ"; 440 case NVME_ADM_CMD_CREATE_SQ: return "NVME_ADM_CMD_CREATE_SQ"; 441 case NVME_ADM_CMD_GET_LOG_PAGE: return "NVME_ADM_CMD_GET_LOG_PAGE"; 442 case NVME_ADM_CMD_DELETE_CQ: return "NVME_ADM_CMD_DELETE_CQ"; 443 case NVME_ADM_CMD_CREATE_CQ: return "NVME_ADM_CMD_CREATE_CQ"; 444 case NVME_ADM_CMD_IDENTIFY: return "NVME_ADM_CMD_IDENTIFY"; 445 case NVME_ADM_CMD_ABORT: return "NVME_ADM_CMD_ABORT"; 446 case NVME_ADM_CMD_SET_FEATURES: return "NVME_ADM_CMD_SET_FEATURES"; 447 case NVME_ADM_CMD_GET_FEATURES: return "NVME_ADM_CMD_GET_FEATURES"; 448 case NVME_ADM_CMD_ASYNC_EV_REQ: return "NVME_ADM_CMD_ASYNC_EV_REQ"; 449 case NVME_ADM_CMD_NS_ATTACHMENT: return "NVME_ADM_CMD_NS_ATTACHMENT"; 450 case NVME_ADM_CMD_DIRECTIVE_SEND: return "NVME_ADM_CMD_DIRECTIVE_SEND"; 451 case NVME_ADM_CMD_VIRT_MNGMT: return "NVME_ADM_CMD_VIRT_MNGMT"; 452 case NVME_ADM_CMD_DIRECTIVE_RECV: return "NVME_ADM_CMD_DIRECTIVE_RECV"; 453 case NVME_ADM_CMD_DBBUF_CONFIG: return "NVME_ADM_CMD_DBBUF_CONFIG"; 454 case NVME_ADM_CMD_FORMAT_NVM: return "NVME_ADM_CMD_FORMAT_NVM"; 455 default: return "NVME_ADM_CMD_UNKNOWN"; 456 } 457 } 458 459 static inline const char *nvme_io_opc_str(uint8_t opc) 460 { 461 switch (opc) { 462 case NVME_CMD_FLUSH: return "NVME_NVM_CMD_FLUSH"; 463 case NVME_CMD_WRITE: return "NVME_NVM_CMD_WRITE"; 464 case NVME_CMD_READ: return "NVME_NVM_CMD_READ"; 465 case NVME_CMD_COMPARE: return "NVME_NVM_CMD_COMPARE"; 466 case NVME_CMD_WRITE_ZEROES: return "NVME_NVM_CMD_WRITE_ZEROES"; 467 case NVME_CMD_DSM: return "NVME_NVM_CMD_DSM"; 468 case NVME_CMD_VERIFY: return "NVME_NVM_CMD_VERIFY"; 469 case NVME_CMD_COPY: return "NVME_NVM_CMD_COPY"; 470 case NVME_CMD_ZONE_MGMT_SEND: return "NVME_ZONED_CMD_MGMT_SEND"; 471 case NVME_CMD_ZONE_MGMT_RECV: return "NVME_ZONED_CMD_MGMT_RECV"; 472 case NVME_CMD_ZONE_APPEND: return "NVME_ZONED_CMD_ZONE_APPEND"; 473 default: return "NVME_NVM_CMD_UNKNOWN"; 474 } 475 } 476 477 typedef struct NvmeSQueue { 478 struct NvmeCtrl *ctrl; 479 uint16_t sqid; 480 uint16_t cqid; 481 uint32_t head; 482 uint32_t tail; 483 uint32_t size; 484 uint64_t dma_addr; 485 uint64_t db_addr; 486 uint64_t ei_addr; 487 QEMUBH *bh; 488 EventNotifier notifier; 489 bool ioeventfd_enabled; 490 NvmeRequest *io_req; 491 QTAILQ_HEAD(, NvmeRequest) req_list; 492 QTAILQ_HEAD(, NvmeRequest) out_req_list; 493 QTAILQ_ENTRY(NvmeSQueue) entry; 494 } NvmeSQueue; 495 496 typedef struct NvmeCQueue { 497 struct NvmeCtrl *ctrl; 498 uint8_t phase; 499 uint16_t cqid; 500 uint16_t irq_enabled; 501 uint32_t head; 502 uint32_t tail; 503 uint32_t vector; 504 uint32_t size; 505 uint64_t dma_addr; 506 uint64_t db_addr; 507 uint64_t ei_addr; 508 QEMUBH *bh; 509 EventNotifier notifier; 510 bool ioeventfd_enabled; 511 QTAILQ_HEAD(, NvmeSQueue) sq_list; 512 QTAILQ_HEAD(, NvmeRequest) req_list; 513 } NvmeCQueue; 514 515 #define TYPE_NVME "nvme" 516 #define NVME(obj) \ 517 OBJECT_CHECK(NvmeCtrl, (obj), TYPE_NVME) 518 519 typedef struct NvmeParams { 520 char *serial; 521 uint32_t num_queues; /* deprecated since 5.1 */ 522 uint32_t max_ioqpairs; 523 uint16_t msix_qsize; 524 uint16_t mqes; 525 uint32_t cmb_size_mb; 526 uint8_t aerl; 527 uint32_t aer_max_queued; 528 uint8_t mdts; 529 uint8_t vsl; 530 bool use_intel_id; 531 uint8_t zasl; 532 bool auto_transition_zones; 533 bool legacy_cmb; 534 bool ioeventfd; 535 uint16_t sriov_max_vfs; 536 uint16_t sriov_vq_flexible; 537 uint16_t sriov_vi_flexible; 538 uint32_t sriov_max_vq_per_vf; 539 uint32_t sriov_max_vi_per_vf; 540 bool msix_exclusive_bar; 541 } NvmeParams; 542 543 typedef struct NvmeCtrl { 544 PCIDevice parent_obj; 545 MemoryRegion bar0; 546 MemoryRegion iomem; 547 NvmeBar bar; 548 NvmeParams params; 549 NvmeBus bus; 550 551 uint16_t cntlid; 552 bool qs_created; 553 uint32_t page_size; 554 uint16_t page_bits; 555 uint16_t max_prp_ents; 556 uint32_t max_q_ents; 557 uint8_t outstanding_aers; 558 uint32_t irq_status; 559 int cq_pending; 560 uint64_t host_timestamp; /* Timestamp sent by the host */ 561 uint64_t timestamp_set_qemu_clock_ms; /* QEMU clock time */ 562 uint64_t starttime_ms; 563 uint16_t temperature; 564 uint8_t smart_critical_warning; 565 uint32_t conf_msix_qsize; 566 uint32_t conf_ioqpairs; 567 uint64_t dbbuf_dbs; 568 uint64_t dbbuf_eis; 569 bool dbbuf_enabled; 570 571 struct { 572 MemoryRegion mem; 573 uint8_t *buf; 574 bool cmse; 575 hwaddr cba; 576 } cmb; 577 578 struct { 579 HostMemoryBackend *dev; 580 bool cmse; 581 hwaddr cba; 582 } pmr; 583 584 uint8_t aer_mask; 585 NvmeRequest **aer_reqs; 586 QTAILQ_HEAD(, NvmeAsyncEvent) aer_queue; 587 int aer_queued; 588 589 uint32_t dmrsl; 590 591 /* Namespace ID is started with 1 so bitmap should be 1-based */ 592 #define NVME_CHANGED_NSID_SIZE (NVME_MAX_NAMESPACES + 1) 593 DECLARE_BITMAP(changed_nsids, NVME_CHANGED_NSID_SIZE); 594 595 NvmeSubsystem *subsys; 596 597 NvmeNamespace namespace; 598 NvmeNamespace *namespaces[NVME_MAX_NAMESPACES + 1]; 599 NvmeSQueue **sq; 600 NvmeCQueue **cq; 601 NvmeSQueue admin_sq; 602 NvmeCQueue admin_cq; 603 NvmeIdCtrl id_ctrl; 604 605 struct { 606 struct { 607 uint16_t temp_thresh_hi; 608 uint16_t temp_thresh_low; 609 }; 610 611 uint32_t async_config; 612 NvmeHostBehaviorSupport hbs; 613 } features; 614 615 NvmePriCtrlCap pri_ctrl_cap; 616 uint32_t nr_sec_ctrls; 617 NvmeSecCtrlEntry *sec_ctrl_list; 618 struct { 619 uint16_t vqrfap; 620 uint16_t virfap; 621 } next_pri_ctrl_cap; /* These override pri_ctrl_cap after reset */ 622 } NvmeCtrl; 623 624 typedef enum NvmeResetType { 625 NVME_RESET_FUNCTION = 0, 626 NVME_RESET_CONTROLLER = 1, 627 } NvmeResetType; 628 629 static inline NvmeNamespace *nvme_ns(NvmeCtrl *n, uint32_t nsid) 630 { 631 if (!nsid || nsid > NVME_MAX_NAMESPACES) { 632 return NULL; 633 } 634 635 return n->namespaces[nsid]; 636 } 637 638 static inline NvmeCQueue *nvme_cq(NvmeRequest *req) 639 { 640 NvmeSQueue *sq = req->sq; 641 NvmeCtrl *n = sq->ctrl; 642 643 return n->cq[sq->cqid]; 644 } 645 646 static inline NvmeCtrl *nvme_ctrl(NvmeRequest *req) 647 { 648 NvmeSQueue *sq = req->sq; 649 return sq->ctrl; 650 } 651 652 static inline uint16_t nvme_cid(NvmeRequest *req) 653 { 654 if (!req) { 655 return 0xffff; 656 } 657 658 return le16_to_cpu(req->cqe.cid); 659 } 660 661 static inline NvmeSecCtrlEntry *nvme_sctrl(NvmeCtrl *n) 662 { 663 PCIDevice *pci_dev = &n->parent_obj; 664 NvmeCtrl *pf = NVME(pcie_sriov_get_pf(pci_dev)); 665 666 if (pci_is_vf(pci_dev)) { 667 return &pf->sec_ctrl_list[pcie_sriov_vf_number(pci_dev)]; 668 } 669 670 return NULL; 671 } 672 673 static inline NvmeSecCtrlEntry *nvme_sctrl_for_cntlid(NvmeCtrl *n, 674 uint16_t cntlid) 675 { 676 NvmeSecCtrlEntry *list = n->sec_ctrl_list; 677 uint8_t i; 678 679 for (i = 0; i < n->nr_sec_ctrls; i++) { 680 if (le16_to_cpu(list[i].scid) == cntlid) { 681 return &list[i]; 682 } 683 } 684 685 return NULL; 686 } 687 688 void nvme_attach_ns(NvmeCtrl *n, NvmeNamespace *ns); 689 uint16_t nvme_bounce_data(NvmeCtrl *n, void *ptr, uint32_t len, 690 NvmeTxDirection dir, NvmeRequest *req); 691 uint16_t nvme_bounce_mdata(NvmeCtrl *n, void *ptr, uint32_t len, 692 NvmeTxDirection dir, NvmeRequest *req); 693 void nvme_rw_complete_cb(void *opaque, int ret); 694 uint16_t nvme_map_dptr(NvmeCtrl *n, NvmeSg *sg, size_t len, 695 NvmeCmd *cmd); 696 697 #endif /* HW_NVME_NVME_H */ 698