Line data Source code
1 : /* SPDX-License-Identifier: BSD-3-Clause
2 : * Copyright (C) 2015 Intel Corporation. All rights reserved.
3 : * Copyright (c) 2020, 2021 Mellanox Technologies LTD. All rights reserved.
4 : * Copyright (c) 2021-2023 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
5 : */
6 :
7 : #ifndef __NVME_INTERNAL_H__
8 : #define __NVME_INTERNAL_H__
9 :
10 : #include "spdk/config.h"
11 : #include "spdk/likely.h"
12 : #include "spdk/stdinc.h"
13 :
14 : #include "spdk/nvme.h"
15 :
16 : #if defined(__i386__) || defined(__x86_64__)
17 : #include <x86intrin.h>
18 : #endif
19 :
20 : #include "spdk/queue.h"
21 : #include "spdk/barrier.h"
22 : #include "spdk/bit_array.h"
23 : #include "spdk/mmio.h"
24 : #include "spdk/pci_ids.h"
25 : #include "spdk/util.h"
26 : #include "spdk/memory.h"
27 : #include "spdk/nvme_intel.h"
28 : #include "spdk/nvmf_spec.h"
29 : #include "spdk/tree.h"
30 : #include "spdk/uuid.h"
31 : #include "spdk/fd_group.h"
32 :
33 : #include "spdk_internal/assert.h"
34 : #include "spdk/log.h"
35 :
36 : extern pid_t g_spdk_nvme_pid;
37 :
38 : extern struct spdk_nvme_transport_opts g_spdk_nvme_transport_opts;
39 :
40 : /*
41 : * Some Intel devices support vendor-unique read latency log page even
42 : * though the log page directory says otherwise.
43 : */
44 : #define NVME_INTEL_QUIRK_READ_LATENCY 0x1
45 :
46 : /*
47 : * Some Intel devices support vendor-unique write latency log page even
48 : * though the log page directory says otherwise.
49 : */
50 : #define NVME_INTEL_QUIRK_WRITE_LATENCY 0x2
51 :
52 : /*
53 : * The controller needs a delay before starts checking the device
54 : * readiness, which is done by reading the NVME_CSTS_RDY bit.
55 : */
56 : #define NVME_QUIRK_DELAY_BEFORE_CHK_RDY 0x4
57 :
58 : /*
59 : * The controller performs best when I/O is split on particular
60 : * LBA boundaries.
61 : */
62 : #define NVME_INTEL_QUIRK_STRIPING 0x8
63 :
64 : /*
65 : * The controller needs a delay after allocating an I/O queue pair
66 : * before it is ready to accept I/O commands.
67 : */
68 : #define NVME_QUIRK_DELAY_AFTER_QUEUE_ALLOC 0x10
69 :
70 : /*
71 : * Earlier NVMe devices do not indicate whether unmapped blocks
72 : * will read all zeroes or not. This define indicates that the
73 : * device does in fact read all zeroes after an unmap event
74 : */
75 : #define NVME_QUIRK_READ_ZERO_AFTER_DEALLOCATE 0x20
76 :
77 : /*
78 : * The controller doesn't handle Identify value others than 0 or 1 correctly.
79 : */
80 : #define NVME_QUIRK_IDENTIFY_CNS 0x40
81 :
82 : /*
83 : * The controller supports Open Channel command set if matching additional
84 : * condition, like the first byte (value 0x1) in the vendor specific
85 : * bits of the namespace identify structure is set.
86 : */
87 : #define NVME_QUIRK_OCSSD 0x80
88 :
89 : /*
90 : * The controller has an Intel vendor ID but does not support Intel vendor-specific
91 : * log pages. This is primarily for QEMU emulated SSDs which report an Intel vendor
92 : * ID but do not support these log pages.
93 : */
94 : #define NVME_INTEL_QUIRK_NO_LOG_PAGES 0x100
95 :
96 : /*
97 : * The controller does not set SHST_COMPLETE in a reasonable amount of time. This
98 : * is primarily seen in virtual VMWare NVMe SSDs. This quirk merely adds an additional
99 : * error message that on VMWare NVMe SSDs, the shutdown timeout may be expected.
100 : */
101 : #define NVME_QUIRK_SHST_COMPLETE 0x200
102 :
103 : /*
104 : * The controller requires an extra delay before starting the initialization process
105 : * during attach.
106 : */
107 : #define NVME_QUIRK_DELAY_BEFORE_INIT 0x400
108 :
109 : /*
110 : * Some SSDs exhibit poor performance with the default SPDK NVMe IO queue size.
111 : * This quirk will increase the default to 1024 which matches other operating
112 : * systems, at the cost of some extra memory usage. Users can still override
113 : * the increased default by changing the spdk_nvme_io_qpair_opts when allocating
114 : * a new queue pair.
115 : */
116 : #define NVME_QUIRK_MINIMUM_IO_QUEUE_SIZE 0x800
117 :
118 : /**
119 : * The maximum access width to PCI memory space is 8 Bytes, don't use AVX2 or
120 : * SSE instructions to optimize the memory access(memcpy or memset) larger than
121 : * 8 Bytes.
122 : */
123 : #define NVME_QUIRK_MAXIMUM_PCI_ACCESS_WIDTH 0x1000
124 :
125 : /**
126 : * The SSD does not support OPAL even through it sets the security bit in OACS.
127 : */
128 : #define NVME_QUIRK_OACS_SECURITY 0x2000
129 :
130 : /**
131 : * Intel P55XX SSDs can't support Dataset Management command with SGL format,
132 : * so use PRP with DSM command.
133 : */
134 : #define NVME_QUIRK_NO_SGL_FOR_DSM 0x4000
135 :
136 : /**
137 : * Maximum Data Transfer Size(MDTS) excludes interleaved metadata.
138 : */
139 : #define NVME_QUIRK_MDTS_EXCLUDE_MD 0x8000
140 :
141 : /**
142 : * Force not to use SGL even the controller report that it can
143 : * support it.
144 : */
145 : #define NVME_QUIRK_NOT_USE_SGL 0x10000
146 :
147 : /*
148 : * Some SSDs require the admin submission queue size to equate to an even
149 : * 4KiB multiple.
150 : */
151 : #define NVME_QUIRK_MINIMUM_ADMIN_QUEUE_SIZE 0x20000
152 :
153 : #define NVME_MAX_ASYNC_EVENTS (8)
154 :
155 : #define NVME_MAX_ADMIN_TIMEOUT_IN_SECS (30)
156 :
157 : /* Maximum log page size to fetch for AERs. */
158 : #define NVME_MAX_AER_LOG_SIZE (4096)
159 :
160 : /*
161 : * NVME_MAX_IO_QUEUES in nvme_spec.h defines the 64K spec-limit, but this
162 : * define specifies the maximum number of queues this driver will actually
163 : * try to configure, if available.
164 : */
165 : #define DEFAULT_MAX_IO_QUEUES (1024)
166 : #define MAX_IO_QUEUES_WITH_INTERRUPTS (256)
167 : #define DEFAULT_ADMIN_QUEUE_SIZE (32)
168 : #define DEFAULT_IO_QUEUE_SIZE (256)
169 : #define DEFAULT_IO_QUEUE_SIZE_FOR_QUIRK (1024) /* Matches Linux kernel driver */
170 :
171 : #define DEFAULT_IO_QUEUE_REQUESTS (512)
172 :
173 : #define SPDK_NVME_DEFAULT_RETRY_COUNT (4)
174 :
175 : #define SPDK_NVME_TRANSPORT_ACK_TIMEOUT_DISABLED (0)
176 : #define SPDK_NVME_DEFAULT_TRANSPORT_ACK_TIMEOUT SPDK_NVME_TRANSPORT_ACK_TIMEOUT_DISABLED
177 :
178 : #define SPDK_NVME_TRANSPORT_TOS_DISABLED (0)
179 :
180 : #define MIN_KEEP_ALIVE_TIMEOUT_IN_MS (10000)
181 :
182 : /* We want to fit submission and completion rings each in a single 2MB
183 : * hugepage to ensure physical address contiguity.
184 : */
185 : #define MAX_IO_QUEUE_ENTRIES (VALUE_2MB / spdk_max( \
186 : sizeof(struct spdk_nvme_cmd), \
187 : sizeof(struct spdk_nvme_cpl)))
188 :
189 : /* Default timeout for fabrics connect commands. */
190 : #ifdef DEBUG
191 : #define NVME_FABRIC_CONNECT_COMMAND_TIMEOUT 0
192 : #else
193 : /* 500 millisecond timeout. */
194 : #define NVME_FABRIC_CONNECT_COMMAND_TIMEOUT 500000
195 : #endif
196 :
197 : /* This value indicates that a read from a PCIe register is invalid. This can happen when a device is no longer present */
198 : #define SPDK_NVME_INVALID_REGISTER_VALUE 0xFFFFFFFFu
199 :
200 : enum nvme_payload_type {
201 : NVME_PAYLOAD_TYPE_INVALID = 0,
202 :
203 : /** nvme_request::u.payload.contig_buffer is valid for this request */
204 : NVME_PAYLOAD_TYPE_CONTIG,
205 :
206 : /** nvme_request::u.sgl is valid for this request */
207 : NVME_PAYLOAD_TYPE_SGL,
208 : };
209 :
210 : /** Boot partition write states */
211 : enum nvme_bp_write_state {
212 : SPDK_NVME_BP_WS_DOWNLOADING = 0x0,
213 : SPDK_NVME_BP_WS_DOWNLOADED = 0x1,
214 : SPDK_NVME_BP_WS_REPLACE = 0x2,
215 : SPDK_NVME_BP_WS_ACTIVATE = 0x3,
216 : };
217 :
218 : /**
219 : * Descriptor for a request data payload.
220 : */
221 : struct nvme_payload {
222 : /**
223 : * Functions for retrieving physical addresses for scattered payloads.
224 : */
225 : spdk_nvme_req_reset_sgl_cb reset_sgl_fn;
226 : spdk_nvme_req_next_sge_cb next_sge_fn;
227 :
228 : /**
229 : * Extended IO options passed by the user
230 : */
231 : struct spdk_nvme_ns_cmd_ext_io_opts *opts;
232 : /**
233 : * If reset_sgl_fn == NULL, this is a contig payload, and contig_or_cb_arg contains the
234 : * virtual memory address of a single virtually contiguous buffer.
235 : *
236 : * If reset_sgl_fn != NULL, this is a SGL payload, and contig_or_cb_arg contains the
237 : * cb_arg that will be passed to the SGL callback functions.
238 : */
239 : void *contig_or_cb_arg;
240 :
241 : /** Virtual memory address of a single virtually contiguous metadata buffer */
242 : void *md;
243 : };
244 :
245 : #define NVME_PAYLOAD_CONTIG(contig_, md_) \
246 : (struct nvme_payload) { \
247 : .reset_sgl_fn = NULL, \
248 : .next_sge_fn = NULL, \
249 : .contig_or_cb_arg = (contig_), \
250 : .md = (md_), \
251 : }
252 :
253 : #define NVME_PAYLOAD_SGL(reset_sgl_fn_, next_sge_fn_, cb_arg_, md_) \
254 : (struct nvme_payload) { \
255 : .reset_sgl_fn = (reset_sgl_fn_), \
256 : .next_sge_fn = (next_sge_fn_), \
257 : .contig_or_cb_arg = (cb_arg_), \
258 : .md = (md_), \
259 : }
260 :
261 : static inline enum nvme_payload_type
262 149 : nvme_payload_type(const struct nvme_payload *payload) {
263 149 : return payload->reset_sgl_fn ? NVME_PAYLOAD_TYPE_SGL : NVME_PAYLOAD_TYPE_CONTIG;
264 : }
265 :
266 : struct nvme_error_cmd {
267 : bool do_not_submit;
268 : uint64_t timeout_tsc;
269 : uint32_t err_count;
270 : uint8_t opc;
271 : struct spdk_nvme_status status;
272 : TAILQ_ENTRY(nvme_error_cmd) link;
273 : };
274 :
275 : struct nvme_request {
276 : struct spdk_nvme_cmd cmd;
277 :
278 : uint8_t retries;
279 :
280 : uint8_t timed_out : 1;
281 :
282 : /**
283 : * True if the request is in the queued_req list.
284 : */
285 : uint8_t queued : 1;
286 : uint8_t reserved : 6;
287 :
288 : /**
289 : * Number of children requests still outstanding for this
290 : * request which was split into multiple child requests.
291 : */
292 : uint16_t num_children;
293 :
294 : /**
295 : * Offset in bytes from the beginning of payload for this request.
296 : * This is used for I/O commands that are split into multiple requests.
297 : */
298 : uint32_t payload_offset;
299 : uint32_t md_offset;
300 :
301 : uint32_t payload_size;
302 :
303 : /**
304 : * Timeout ticks for error injection requests, can be extended in future
305 : * to support per-request timeout feature.
306 : */
307 : uint64_t timeout_tsc;
308 :
309 : /**
310 : * Data payload for this request's command.
311 : */
312 : struct nvme_payload payload;
313 :
314 : spdk_nvme_cmd_cb cb_fn;
315 : void *cb_arg;
316 : STAILQ_ENTRY(nvme_request) stailq;
317 :
318 : struct spdk_nvme_qpair *qpair;
319 :
320 : /*
321 : * The value of spdk_get_ticks() when the request was submitted to the hardware.
322 : * Only set if ctrlr->timeout_enabled is true.
323 : */
324 : uint64_t submit_tick;
325 :
326 : /**
327 : * The active admin request can be moved to a per process pending
328 : * list based on the saved pid to tell which process it belongs
329 : * to. The cpl saves the original completion information which
330 : * is used in the completion callback.
331 : * NOTE: these below two fields are only used for admin request.
332 : */
333 : pid_t pid;
334 : struct spdk_nvme_cpl cpl;
335 :
336 : uint32_t md_size;
337 :
338 : /**
339 : * The following members should not be reordered with members
340 : * above. These members are only needed when splitting
341 : * requests which is done rarely, and the driver is careful
342 : * to not touch the following fields until a split operation is
343 : * needed, to avoid touching an extra cacheline.
344 : */
345 :
346 : /**
347 : * Points to the outstanding child requests for a parent request.
348 : * Only valid if a request was split into multiple children
349 : * requests, and is not initialized for non-split requests.
350 : */
351 : TAILQ_HEAD(, nvme_request) children;
352 :
353 : /**
354 : * Linked-list pointers for a child request in its parent's list.
355 : */
356 : TAILQ_ENTRY(nvme_request) child_tailq;
357 :
358 : /**
359 : * Points to a parent request if part of a split request,
360 : * NULL otherwise.
361 : */
362 : struct nvme_request *parent;
363 :
364 : /**
365 : * Completion status for a parent request. Initialized to all 0's
366 : * (SUCCESS) before child requests are submitted. If a child
367 : * request completes with error, the error status is copied here,
368 : * to ensure that the parent request is also completed with error
369 : * status once all child requests are completed.
370 : */
371 : struct spdk_nvme_cpl parent_status;
372 :
373 : /**
374 : * The user_cb_fn and user_cb_arg fields are used for holding the original
375 : * callback data when using nvme_allocate_request_user_copy.
376 : */
377 : spdk_nvme_cmd_cb user_cb_fn;
378 : void *user_cb_arg;
379 : void *user_buffer;
380 :
381 : /** Sequence of accel operations associated with this request */
382 : void *accel_sequence;
383 : };
384 :
385 : struct nvme_completion_poll_status {
386 : struct spdk_nvme_cpl cpl;
387 : uint64_t timeout_tsc;
388 : /**
389 : * DMA buffer retained throughout the duration of the command. It'll be released
390 : * automatically if the command times out, otherwise the user is responsible for freeing it.
391 : */
392 : void *dma_data;
393 : bool done;
394 : /* This flag indicates that the request has been timed out and the memory
395 : must be freed in a completion callback */
396 : bool timed_out;
397 : };
398 :
399 : struct nvme_async_event_request {
400 : struct spdk_nvme_ctrlr *ctrlr;
401 : struct nvme_request *req;
402 : struct spdk_nvme_cpl cpl;
403 : };
404 :
405 : enum nvme_qpair_state {
406 : NVME_QPAIR_DISCONNECTED,
407 : NVME_QPAIR_DISCONNECTING,
408 : NVME_QPAIR_CONNECTING,
409 : NVME_QPAIR_CONNECTED,
410 : NVME_QPAIR_ENABLING,
411 : NVME_QPAIR_ENABLED,
412 : NVME_QPAIR_DESTROYING,
413 : };
414 :
415 : enum nvme_qpair_auth_state {
416 : NVME_QPAIR_AUTH_STATE_NEGOTIATE,
417 : NVME_QPAIR_AUTH_STATE_AWAIT_NEGOTIATE,
418 : NVME_QPAIR_AUTH_STATE_AWAIT_CHALLENGE,
419 : NVME_QPAIR_AUTH_STATE_AWAIT_REPLY,
420 : NVME_QPAIR_AUTH_STATE_AWAIT_SUCCESS1,
421 : NVME_QPAIR_AUTH_STATE_AWAIT_SUCCESS2,
422 : NVME_QPAIR_AUTH_STATE_AWAIT_FAILURE2,
423 : NVME_QPAIR_AUTH_STATE_DONE,
424 : };
425 :
426 : /* Authentication transaction required (authreq.atr) */
427 : #define NVME_QPAIR_AUTH_FLAG_ATR (1 << 0)
428 : /* Authentication and secure channel required (authreq.ascr) */
429 : #define NVME_QPAIR_AUTH_FLAG_ASCR (1 << 1)
430 :
431 : /* Maximum size of a digest */
432 : #define NVME_AUTH_DIGEST_MAX_SIZE 64
433 :
434 : struct nvme_auth {
435 : /* State of the authentication */
436 : enum nvme_qpair_auth_state state;
437 : /* Status of the authentication */
438 : int status;
439 : /* Transaction ID */
440 : uint16_t tid;
441 : /* Flags */
442 : uint32_t flags;
443 : /* Selected hash function */
444 : uint8_t hash;
445 : /* Buffer used for controller challenge */
446 : uint8_t challenge[NVME_AUTH_DIGEST_MAX_SIZE];
447 : /* User's auth cb fn/ctx */
448 : spdk_nvme_authenticate_cb cb_fn;
449 : void *cb_ctx;
450 : };
451 :
452 : struct spdk_nvme_qpair {
453 : struct spdk_nvme_ctrlr *ctrlr;
454 :
455 : uint16_t id;
456 :
457 : uint8_t qprio: 2;
458 :
459 : uint8_t state: 3;
460 :
461 : uint8_t async: 1;
462 :
463 : uint8_t is_new_qpair: 1;
464 :
465 : uint8_t abort_dnr: 1;
466 : /*
467 : * Members for handling IO qpair deletion inside of a completion context.
468 : * These are specifically defined as single bits, so that they do not
469 : * push this data structure out to another cacheline.
470 : */
471 : uint8_t in_completion_context: 1;
472 : uint8_t delete_after_completion_context: 1;
473 :
474 : /*
475 : * Set when no deletion notification is needed. For example, the process
476 : * which allocated this qpair exited unexpectedly.
477 : */
478 : uint8_t no_deletion_notification_needed: 1;
479 :
480 : uint8_t last_fuse: 2;
481 :
482 : uint8_t transport_failure_reason: 3;
483 : uint8_t last_transport_failure_reason: 3;
484 :
485 : /* The user is destroying qpair */
486 : uint8_t destroy_in_progress: 1;
487 :
488 : /* Number of IO outstanding at transport level */
489 : uint16_t queue_depth;
490 :
491 : enum spdk_nvme_transport_type trtype;
492 :
493 : uint32_t num_outstanding_reqs;
494 :
495 : /* request object used only for this qpair's FABRICS/CONNECT command (if needed) */
496 : struct nvme_request *reserved_req;
497 :
498 : STAILQ_HEAD(, nvme_request) free_req;
499 : STAILQ_HEAD(, nvme_request) queued_req;
500 :
501 : /* List entry for spdk_nvme_transport_poll_group::qpairs */
502 : STAILQ_ENTRY(spdk_nvme_qpair) poll_group_stailq;
503 :
504 : /** Commands opcode in this list will return error */
505 : TAILQ_HEAD(, nvme_error_cmd) err_cmd_head;
506 : /** Requests in this list will return error */
507 : STAILQ_HEAD(, nvme_request) err_req_head;
508 :
509 : struct spdk_nvme_ctrlr_process *active_proc;
510 :
511 : struct spdk_nvme_transport_poll_group *poll_group;
512 :
513 : void *poll_group_tailq_head;
514 :
515 : const struct spdk_nvme_transport *transport;
516 :
517 : /* Entries below here are not touched in the main I/O path. */
518 :
519 : struct nvme_completion_poll_status *poll_status;
520 :
521 : /* List entry for spdk_nvme_ctrlr::active_io_qpairs */
522 : TAILQ_ENTRY(spdk_nvme_qpair) tailq;
523 :
524 : /* List entry for spdk_nvme_ctrlr_process::allocated_io_qpairs */
525 : TAILQ_ENTRY(spdk_nvme_qpair) per_process_tailq;
526 :
527 : STAILQ_HEAD(, nvme_request) aborting_queued_req;
528 :
529 : void *req_buf;
530 :
531 : /* In-band authentication state */
532 : struct nvme_auth auth;
533 : };
534 :
535 : struct spdk_nvme_poll_group {
536 : void *ctx;
537 : struct spdk_nvme_accel_fn_table accel_fn_table;
538 : STAILQ_HEAD(, spdk_nvme_transport_poll_group) tgroups;
539 : bool in_process_completions;
540 : bool enable_interrupts;
541 : bool enable_interrupts_is_valid;
542 : int disconnect_qpair_fd;
543 : struct spdk_fd_group *fgrp;
544 : };
545 :
546 : struct spdk_nvme_transport_poll_group {
547 : struct spdk_nvme_poll_group *group;
548 : const struct spdk_nvme_transport *transport;
549 : STAILQ_HEAD(, spdk_nvme_qpair) connected_qpairs;
550 : STAILQ_HEAD(, spdk_nvme_qpair) disconnected_qpairs;
551 : STAILQ_ENTRY(spdk_nvme_transport_poll_group) link;
552 : uint32_t num_connected_qpairs;
553 : };
554 :
555 : struct spdk_nvme_ns {
556 : struct spdk_nvme_ctrlr *ctrlr;
557 : uint32_t sector_size;
558 :
559 : /*
560 : * Size of data transferred as part of each block,
561 : * including metadata if FLBAS indicates the metadata is transferred
562 : * as part of the data buffer at the end of each LBA.
563 : */
564 : uint32_t extended_lba_size;
565 :
566 : uint32_t md_size;
567 : uint32_t pi_type;
568 : uint32_t pi_format;
569 : uint32_t sectors_per_max_io;
570 : uint32_t sectors_per_max_io_no_md;
571 : uint32_t sectors_per_stripe;
572 : uint32_t id;
573 : uint16_t flags;
574 : bool active;
575 :
576 : /* Command Set Identifier */
577 : enum spdk_nvme_csi csi;
578 :
579 : /* Namespace Identification Descriptor List (CNS = 03h) */
580 : uint8_t id_desc_list[4096];
581 :
582 : uint32_t ana_group_id;
583 : enum spdk_nvme_ana_state ana_state;
584 :
585 : /* Identify Namespace data. */
586 : struct spdk_nvme_ns_data nsdata;
587 :
588 : /* Zoned Namespace Command Set Specific Identify Namespace data. */
589 : struct spdk_nvme_zns_ns_data *nsdata_zns;
590 :
591 : struct spdk_nvme_nvm_ns_data *nsdata_nvm;
592 :
593 : RB_ENTRY(spdk_nvme_ns) node;
594 : };
595 :
596 : #define CTRLR_STRING(ctrlr) \
597 : (spdk_nvme_trtype_is_fabrics(ctrlr->trid.trtype) ? \
598 : ctrlr->trid.subnqn : ctrlr->trid.traddr)
599 :
600 : #define NVME_CTRLR_ERRLOG(ctrlr, format, ...) \
601 : SPDK_ERRLOG("[%s, %u] " format, CTRLR_STRING(ctrlr), ctrlr->cntlid, ##__VA_ARGS__);
602 :
603 : #define NVME_CTRLR_WARNLOG(ctrlr, format, ...) \
604 : SPDK_WARNLOG("[%s, %u] " format, CTRLR_STRING(ctrlr), ctrlr->cntlid, ##__VA_ARGS__);
605 :
606 : #define NVME_CTRLR_NOTICELOG(ctrlr, format, ...) \
607 : SPDK_NOTICELOG("[%s, %u] " format, CTRLR_STRING(ctrlr), ctrlr->cntlid, ##__VA_ARGS__);
608 :
609 : #define NVME_CTRLR_INFOLOG(ctrlr, format, ...) \
610 : SPDK_INFOLOG(nvme, "[%s, %u] " format, CTRLR_STRING(ctrlr), ctrlr->cntlid, ##__VA_ARGS__);
611 :
612 : #ifdef DEBUG
613 : #define NVME_CTRLR_DEBUGLOG(ctrlr, format, ...) \
614 : SPDK_DEBUGLOG(nvme, "[%s, %u] " format, CTRLR_STRING(ctrlr), ctrlr->cntlid, ##__VA_ARGS__);
615 : #else
616 : #define NVME_CTRLR_DEBUGLOG(ctrlr, ...) do { } while (0)
617 : #endif
618 :
619 : /**
620 : * State of struct spdk_nvme_ctrlr (in particular, during initialization).
621 : */
622 : enum nvme_ctrlr_state {
623 : /**
624 : * Wait before initializing the controller.
625 : */
626 : NVME_CTRLR_STATE_INIT_DELAY,
627 :
628 : /**
629 : * Connect the admin queue.
630 : */
631 : NVME_CTRLR_STATE_CONNECT_ADMINQ,
632 :
633 : /**
634 : * Controller has not started initialized yet.
635 : */
636 : NVME_CTRLR_STATE_INIT = NVME_CTRLR_STATE_CONNECT_ADMINQ,
637 :
638 : /**
639 : * Waiting for admin queue to connect.
640 : */
641 : NVME_CTRLR_STATE_WAIT_FOR_CONNECT_ADMINQ,
642 :
643 : /**
644 : * Read Version (VS) register.
645 : */
646 : NVME_CTRLR_STATE_READ_VS,
647 :
648 : /**
649 : * Waiting for Version (VS) register to be read.
650 : */
651 : NVME_CTRLR_STATE_READ_VS_WAIT_FOR_VS,
652 :
653 : /**
654 : * Read Capabilities (CAP) register.
655 : */
656 : NVME_CTRLR_STATE_READ_CAP,
657 :
658 : /**
659 : * Waiting for Capabilities (CAP) register to be read.
660 : */
661 : NVME_CTRLR_STATE_READ_CAP_WAIT_FOR_CAP,
662 :
663 : /**
664 : * Check EN to prepare for controller initialization.
665 : */
666 : NVME_CTRLR_STATE_CHECK_EN,
667 :
668 : /**
669 : * Waiting for CC to be read as part of EN check.
670 : */
671 : NVME_CTRLR_STATE_CHECK_EN_WAIT_FOR_CC,
672 :
673 : /**
674 : * Waiting for CSTS.RDY to transition from 0 to 1 so that CC.EN may be set to 0.
675 : */
676 : NVME_CTRLR_STATE_DISABLE_WAIT_FOR_READY_1,
677 :
678 : /**
679 : * Waiting for CSTS register to be read as part of waiting for CSTS.RDY = 1.
680 : */
681 : NVME_CTRLR_STATE_DISABLE_WAIT_FOR_READY_1_WAIT_FOR_CSTS,
682 :
683 : /**
684 : * Disabling the controller by setting CC.EN to 0.
685 : */
686 : NVME_CTRLR_STATE_SET_EN_0,
687 :
688 : /**
689 : * Waiting for the CC register to be read as part of disabling the controller.
690 : */
691 : NVME_CTRLR_STATE_SET_EN_0_WAIT_FOR_CC,
692 :
693 : /**
694 : * Waiting for CSTS.RDY to transition from 1 to 0 so that CC.EN may be set to 1.
695 : */
696 : NVME_CTRLR_STATE_DISABLE_WAIT_FOR_READY_0,
697 :
698 : /**
699 : * Waiting for CSTS register to be read as part of waiting for CSTS.RDY = 0.
700 : */
701 : NVME_CTRLR_STATE_DISABLE_WAIT_FOR_READY_0_WAIT_FOR_CSTS,
702 :
703 : /**
704 : * The controller is disabled. (CC.EN and CSTS.RDY are 0.)
705 : */
706 : NVME_CTRLR_STATE_DISABLED,
707 :
708 : /**
709 : * Enable the controller by writing CC.EN to 1
710 : */
711 : NVME_CTRLR_STATE_ENABLE,
712 :
713 : /**
714 : * Waiting for CC register to be written as part of enabling the controller.
715 : */
716 : NVME_CTRLR_STATE_ENABLE_WAIT_FOR_CC,
717 :
718 : /**
719 : * Waiting for CSTS.RDY to transition from 0 to 1 after enabling the controller.
720 : */
721 : NVME_CTRLR_STATE_ENABLE_WAIT_FOR_READY_1,
722 :
723 : /**
724 : * Waiting for CSTS register to be read as part of waiting for CSTS.RDY = 1.
725 : */
726 : NVME_CTRLR_STATE_ENABLE_WAIT_FOR_READY_1_WAIT_FOR_CSTS,
727 :
728 : /**
729 : * Reset the Admin queue of the controller.
730 : */
731 : NVME_CTRLR_STATE_RESET_ADMIN_QUEUE,
732 :
733 : /**
734 : * Identify Controller command will be sent to then controller.
735 : */
736 : NVME_CTRLR_STATE_IDENTIFY,
737 :
738 : /**
739 : * Waiting for Identify Controller command be completed.
740 : */
741 : NVME_CTRLR_STATE_WAIT_FOR_IDENTIFY,
742 :
743 : /**
744 : * Configure AER of the controller.
745 : */
746 : NVME_CTRLR_STATE_CONFIGURE_AER,
747 :
748 : /**
749 : * Waiting for the Configure AER to be completed.
750 : */
751 : NVME_CTRLR_STATE_WAIT_FOR_CONFIGURE_AER,
752 :
753 : /**
754 : * Set Keep Alive Timeout of the controller.
755 : */
756 : NVME_CTRLR_STATE_SET_KEEP_ALIVE_TIMEOUT,
757 :
758 : /**
759 : * Waiting for Set Keep Alive Timeout to be completed.
760 : */
761 : NVME_CTRLR_STATE_WAIT_FOR_KEEP_ALIVE_TIMEOUT,
762 :
763 : /**
764 : * Get Identify I/O Command Set Specific Controller data structure.
765 : */
766 : NVME_CTRLR_STATE_IDENTIFY_IOCS_SPECIFIC,
767 :
768 : /**
769 : * Waiting for Identify I/O Command Set Specific Controller command to be completed.
770 : */
771 : NVME_CTRLR_STATE_WAIT_FOR_IDENTIFY_IOCS_SPECIFIC,
772 :
773 : /**
774 : * Get Commands Supported and Effects log page for the Zoned Namespace Command Set.
775 : */
776 : NVME_CTRLR_STATE_GET_ZNS_CMD_EFFECTS_LOG,
777 :
778 : /**
779 : * Waiting for the Get Log Page command to be completed.
780 : */
781 : NVME_CTRLR_STATE_WAIT_FOR_GET_ZNS_CMD_EFFECTS_LOG,
782 :
783 : /**
784 : * Set Number of Queues of the controller.
785 : */
786 : NVME_CTRLR_STATE_SET_NUM_QUEUES,
787 :
788 : /**
789 : * Waiting for Set Num of Queues command to be completed.
790 : */
791 : NVME_CTRLR_STATE_WAIT_FOR_SET_NUM_QUEUES,
792 :
793 : /**
794 : * Get active Namespace list of the controller.
795 : */
796 : NVME_CTRLR_STATE_IDENTIFY_ACTIVE_NS,
797 :
798 : /**
799 : * Waiting for the Identify Active Namespace commands to be completed.
800 : */
801 : NVME_CTRLR_STATE_WAIT_FOR_IDENTIFY_ACTIVE_NS,
802 :
803 : /**
804 : * Get Identify Namespace Data structure for each NS.
805 : */
806 : NVME_CTRLR_STATE_IDENTIFY_NS,
807 :
808 : /**
809 : * Waiting for the Identify Namespace commands to be completed.
810 : */
811 : NVME_CTRLR_STATE_WAIT_FOR_IDENTIFY_NS,
812 :
813 : /**
814 : * Get Identify Namespace Identification Descriptors.
815 : */
816 : NVME_CTRLR_STATE_IDENTIFY_ID_DESCS,
817 :
818 : /**
819 : * Get Identify I/O Command Set Specific Namespace data structure for each NS.
820 : */
821 : NVME_CTRLR_STATE_IDENTIFY_NS_IOCS_SPECIFIC,
822 :
823 : /**
824 : * Waiting for the Identify I/O Command Set Specific Namespace commands to be completed.
825 : */
826 : NVME_CTRLR_STATE_WAIT_FOR_IDENTIFY_NS_IOCS_SPECIFIC,
827 :
828 : /**
829 : * Waiting for the Identify Namespace Identification
830 : * Descriptors to be completed.
831 : */
832 : NVME_CTRLR_STATE_WAIT_FOR_IDENTIFY_ID_DESCS,
833 :
834 : /**
835 : * Set supported log pages of the controller.
836 : */
837 : NVME_CTRLR_STATE_SET_SUPPORTED_LOG_PAGES,
838 :
839 : /**
840 : * Set supported log pages of INTEL controller.
841 : */
842 : NVME_CTRLR_STATE_SET_SUPPORTED_INTEL_LOG_PAGES,
843 :
844 : /**
845 : * Waiting for supported log pages of INTEL controller.
846 : */
847 : NVME_CTRLR_STATE_WAIT_FOR_SUPPORTED_INTEL_LOG_PAGES,
848 :
849 : /**
850 : * Set supported features of the controller.
851 : */
852 : NVME_CTRLR_STATE_SET_SUPPORTED_FEATURES,
853 :
854 : /**
855 : * Set the Host Behavior Support feature of the controller.
856 : */
857 : NVME_CTRLR_STATE_SET_HOST_FEATURE,
858 :
859 : /**
860 : * Waiting for the Host Behavior Support feature of the controller.
861 : */
862 : NVME_CTRLR_STATE_WAIT_FOR_SET_HOST_FEATURE,
863 :
864 : /**
865 : * Set Doorbell Buffer Config of the controller.
866 : */
867 : NVME_CTRLR_STATE_SET_DB_BUF_CFG,
868 :
869 : /**
870 : * Waiting for Doorbell Buffer Config to be completed.
871 : */
872 : NVME_CTRLR_STATE_WAIT_FOR_DB_BUF_CFG,
873 :
874 : /**
875 : * Set Host ID of the controller.
876 : */
877 : NVME_CTRLR_STATE_SET_HOST_ID,
878 :
879 : /**
880 : * Waiting for Set Host ID to be completed.
881 : */
882 : NVME_CTRLR_STATE_WAIT_FOR_HOST_ID,
883 :
884 : /**
885 : * Let transport layer do its part of initialization.
886 : */
887 : NVME_CTRLR_STATE_TRANSPORT_READY,
888 :
889 : /**
890 : * Controller initialization has completed and the controller is ready.
891 : */
892 : NVME_CTRLR_STATE_READY,
893 :
894 : /**
895 : * Controller initialization has an error.
896 : */
897 : NVME_CTRLR_STATE_ERROR,
898 :
899 : /**
900 : * Admin qpair was disconnected, controller needs to be re-initialized
901 : */
902 : NVME_CTRLR_STATE_DISCONNECTED,
903 : };
904 :
905 : #define NVME_TIMEOUT_INFINITE 0
906 : #define NVME_TIMEOUT_KEEP_EXISTING UINT64_MAX
907 :
908 : struct spdk_nvme_ctrlr_aer_completion {
909 : struct spdk_nvme_cpl cpl;
910 : STAILQ_ENTRY(spdk_nvme_ctrlr_aer_completion) link;
911 : };
912 :
913 : /*
914 : * Used to track properties for all processes accessing the controller.
915 : */
916 : struct spdk_nvme_ctrlr_process {
917 : /** Whether it is the primary process */
918 : bool is_primary;
919 :
920 : /** Process ID */
921 : pid_t pid;
922 :
923 : /** Active admin requests to be completed */
924 : STAILQ_HEAD(, nvme_request) active_reqs;
925 :
926 : TAILQ_ENTRY(spdk_nvme_ctrlr_process) tailq;
927 :
928 : /** Per process PCI device handle */
929 : struct spdk_pci_device *devhandle;
930 :
931 : /** Reference to track the number of attachment to this controller. */
932 : int ref;
933 :
934 : /** Allocated IO qpairs */
935 : TAILQ_HEAD(, spdk_nvme_qpair) allocated_io_qpairs;
936 :
937 : spdk_nvme_aer_cb aer_cb_fn;
938 : void *aer_cb_arg;
939 :
940 : /**
941 : * A function pointer to timeout callback function
942 : */
943 : spdk_nvme_timeout_cb timeout_cb_fn;
944 : void *timeout_cb_arg;
945 : /** separate timeout values for io vs. admin reqs */
946 : uint64_t timeout_io_ticks;
947 : uint64_t timeout_admin_ticks;
948 :
949 : /** List to publish AENs to all procs in multiprocess setup */
950 : STAILQ_HEAD(, spdk_nvme_ctrlr_aer_completion) async_events;
951 : };
952 :
953 : struct nvme_register_completion {
954 : struct spdk_nvme_cpl cpl;
955 : uint64_t value;
956 : spdk_nvme_reg_cb cb_fn;
957 : void *cb_ctx;
958 : STAILQ_ENTRY(nvme_register_completion) stailq;
959 : pid_t pid;
960 : };
961 :
962 : struct spdk_nvme_ctrlr {
963 : /* Hot data (accessed in I/O path) starts here. */
964 :
965 : /* Tree of namespaces */
966 : RB_HEAD(nvme_ns_tree, spdk_nvme_ns) ns;
967 :
968 : /* The number of active namespaces */
969 : uint32_t active_ns_count;
970 :
971 : bool is_removed;
972 :
973 : bool is_resetting;
974 :
975 : bool is_failed;
976 :
977 : bool is_destructed;
978 :
979 : bool timeout_enabled;
980 :
981 : /* The application is preparing to reset the controller. Transports
982 : * can use this to skip unnecessary parts of the qpair deletion process
983 : * for example, like the DELETE_SQ/CQ commands.
984 : */
985 : bool prepare_for_reset;
986 :
987 : bool is_disconnecting;
988 :
989 : bool needs_io_msg_update;
990 :
991 : uint16_t max_sges;
992 :
993 : uint16_t cntlid;
994 :
995 : /** Controller support flags */
996 : uint64_t flags;
997 :
998 : /** NVMEoF in-capsule data size in bytes */
999 : uint32_t ioccsz_bytes;
1000 :
1001 : /** NVMEoF in-capsule data offset in 16 byte units */
1002 : uint16_t icdoff;
1003 :
1004 : /* Cold data (not accessed in normal I/O path) is after this point. */
1005 :
1006 : struct spdk_nvme_transport_id trid;
1007 :
1008 : struct {
1009 : /** Is numa.id valid? Ensures numa.id == 0 is interpreted correctly. */
1010 : uint32_t id_valid : 1;
1011 : int32_t id : 31;
1012 : } numa;
1013 :
1014 : union spdk_nvme_cap_register cap;
1015 : union spdk_nvme_vs_register vs;
1016 :
1017 : int state;
1018 : uint64_t state_timeout_tsc;
1019 :
1020 : uint64_t next_keep_alive_tick;
1021 : uint64_t keep_alive_interval_ticks;
1022 :
1023 : TAILQ_ENTRY(spdk_nvme_ctrlr) tailq;
1024 :
1025 : /** All the log pages supported */
1026 : bool log_page_supported[256];
1027 :
1028 : /** All the features supported */
1029 : bool feature_supported[256];
1030 :
1031 : /** maximum i/o size in bytes */
1032 : uint32_t max_xfer_size;
1033 :
1034 : /** minimum page size supported by this controller in bytes */
1035 : uint32_t min_page_size;
1036 :
1037 : /** selected memory page size for this controller in bytes */
1038 : uint32_t page_size;
1039 :
1040 : uint32_t num_aers;
1041 : struct nvme_async_event_request aer[NVME_MAX_ASYNC_EVENTS];
1042 :
1043 : /** guards access to the controller itself, including admin queues */
1044 : pthread_mutex_t ctrlr_lock;
1045 :
1046 : struct spdk_nvme_qpair *adminq;
1047 :
1048 : /** shadow doorbell buffer */
1049 : uint32_t *shadow_doorbell;
1050 : /** eventidx buffer */
1051 : uint32_t *eventidx;
1052 :
1053 : /**
1054 : * Identify Controller data.
1055 : */
1056 : struct spdk_nvme_ctrlr_data cdata;
1057 :
1058 : /**
1059 : * Zoned Namespace Command Set Specific Identify Controller data.
1060 : */
1061 : struct spdk_nvme_zns_ctrlr_data *cdata_zns;
1062 :
1063 : struct spdk_bit_array *free_io_qids;
1064 : TAILQ_HEAD(, spdk_nvme_qpair) active_io_qpairs;
1065 :
1066 : struct spdk_nvme_ctrlr_opts opts;
1067 :
1068 : uint64_t quirks;
1069 :
1070 : /* Extra sleep time during controller initialization */
1071 : uint64_t sleep_timeout_tsc;
1072 :
1073 : /** Track all the processes manage this controller */
1074 : TAILQ_HEAD(, spdk_nvme_ctrlr_process) active_procs;
1075 :
1076 :
1077 : STAILQ_HEAD(, nvme_request) queued_aborts;
1078 : uint32_t outstanding_aborts;
1079 :
1080 : uint32_t lock_depth;
1081 :
1082 : /* CB to notify the user when the ctrlr is removed/failed. */
1083 : spdk_nvme_remove_cb remove_cb;
1084 : void *cb_ctx;
1085 :
1086 : struct spdk_nvme_qpair *external_io_msgs_qpair;
1087 : pthread_mutex_t external_io_msgs_lock;
1088 : struct spdk_ring *external_io_msgs;
1089 :
1090 : STAILQ_HEAD(, nvme_io_msg_producer) io_producers;
1091 :
1092 : struct spdk_nvme_ana_page *ana_log_page;
1093 : struct spdk_nvme_ana_group_descriptor *copied_ana_desc;
1094 : uint32_t ana_log_page_size;
1095 :
1096 : /* scratchpad pointer that can be used to send data between two NVME_CTRLR_STATEs */
1097 : void *tmp_ptr;
1098 :
1099 : /* maximum zone append size in bytes */
1100 : uint32_t max_zone_append_size;
1101 :
1102 : /* PMR size in bytes */
1103 : uint64_t pmr_size;
1104 :
1105 : /* Boot Partition Info */
1106 : enum nvme_bp_write_state bp_ws;
1107 : uint32_t bpid;
1108 : spdk_nvme_cmd_cb bp_write_cb_fn;
1109 : void *bp_write_cb_arg;
1110 :
1111 : /* Firmware Download */
1112 : void *fw_payload;
1113 : unsigned int fw_size_remaining;
1114 : unsigned int fw_offset;
1115 : unsigned int fw_transfer_size;
1116 :
1117 : /* Completed register operations */
1118 : STAILQ_HEAD(, nvme_register_completion) register_operations;
1119 :
1120 : union spdk_nvme_cc_register process_init_cc;
1121 :
1122 : /* Authentication transaction ID */
1123 : uint16_t auth_tid;
1124 : /* Authentication sequence number */
1125 : uint32_t auth_seqnum;
1126 : };
1127 :
1128 : struct spdk_nvme_detach_ctx {
1129 : TAILQ_HEAD(, nvme_ctrlr_detach_ctx) head;
1130 : };
1131 :
1132 : struct spdk_nvme_probe_ctx {
1133 : struct spdk_nvme_transport_id trid;
1134 : const struct spdk_nvme_ctrlr_opts *opts;
1135 : void *cb_ctx;
1136 : spdk_nvme_probe_cb probe_cb;
1137 : spdk_nvme_attach_cb attach_cb;
1138 : spdk_nvme_attach_fail_cb attach_fail_cb;
1139 : spdk_nvme_remove_cb remove_cb;
1140 : TAILQ_HEAD(, spdk_nvme_ctrlr) init_ctrlrs;
1141 : /* detach contexts allocated for controllers that failed to initialize */
1142 : struct spdk_nvme_detach_ctx failed_ctxs;
1143 : };
1144 :
1145 : typedef void (*nvme_ctrlr_detach_cb)(struct spdk_nvme_ctrlr *ctrlr);
1146 :
1147 : enum nvme_ctrlr_detach_state {
1148 : NVME_CTRLR_DETACH_SET_CC,
1149 : NVME_CTRLR_DETACH_CHECK_CSTS,
1150 : NVME_CTRLR_DETACH_GET_CSTS,
1151 : NVME_CTRLR_DETACH_GET_CSTS_DONE,
1152 : };
1153 :
1154 : struct nvme_ctrlr_detach_ctx {
1155 : struct spdk_nvme_ctrlr *ctrlr;
1156 : nvme_ctrlr_detach_cb cb_fn;
1157 : uint64_t shutdown_start_tsc;
1158 : uint32_t shutdown_timeout_ms;
1159 : bool shutdown_complete;
1160 : enum nvme_ctrlr_detach_state state;
1161 : union spdk_nvme_csts_register csts;
1162 : TAILQ_ENTRY(nvme_ctrlr_detach_ctx) link;
1163 : };
1164 :
1165 : struct nvme_driver {
1166 : pthread_mutex_t lock;
1167 :
1168 : /** Multi-process shared attached controller list */
1169 : TAILQ_HEAD(, spdk_nvme_ctrlr) shared_attached_ctrlrs;
1170 :
1171 : bool initialized;
1172 : struct spdk_uuid default_extended_host_id;
1173 :
1174 : /** netlink socket fd for hotplug messages */
1175 : int hotplug_fd;
1176 : };
1177 :
1178 : #define nvme_ns_cmd_get_ext_io_opt(opts, field, defval) \
1179 : ((opts) != NULL && offsetof(struct spdk_nvme_ns_cmd_ext_io_opts, field) + \
1180 : sizeof((opts)->field) <= (opts)->size ? (opts)->field : (defval))
1181 :
1182 : extern struct nvme_driver *g_spdk_nvme_driver;
1183 :
1184 : int nvme_driver_init(void);
1185 :
1186 : #define nvme_delay usleep
1187 :
1188 : static inline bool
1189 70 : nvme_qpair_is_admin_queue(struct spdk_nvme_qpair *qpair)
1190 : {
1191 70 : return qpair->id == 0;
1192 : }
1193 :
1194 : static inline bool
1195 : nvme_qpair_is_io_queue(struct spdk_nvme_qpair *qpair)
1196 : {
1197 : return qpair->id != 0;
1198 : }
1199 :
1200 : static inline int
1201 12677 : nvme_robust_mutex_lock(pthread_mutex_t *mtx)
1202 : {
1203 12677 : int rc = pthread_mutex_lock(mtx);
1204 :
1205 : #ifndef __FreeBSD__
1206 12677 : if (rc == EOWNERDEAD) {
1207 0 : rc = pthread_mutex_consistent(mtx);
1208 0 : }
1209 : #endif
1210 :
1211 25354 : return rc;
1212 12677 : }
1213 :
1214 : static inline int
1215 12609 : nvme_ctrlr_lock(struct spdk_nvme_ctrlr *ctrlr)
1216 : {
1217 12609 : int rc;
1218 :
1219 12609 : rc = nvme_robust_mutex_lock(&ctrlr->ctrlr_lock);
1220 12609 : ctrlr->lock_depth++;
1221 25218 : return rc;
1222 12609 : }
1223 :
1224 : static inline int
1225 12675 : nvme_robust_mutex_unlock(pthread_mutex_t *mtx)
1226 : {
1227 12675 : return pthread_mutex_unlock(mtx);
1228 : }
1229 :
1230 : static inline int
1231 12607 : nvme_ctrlr_unlock(struct spdk_nvme_ctrlr *ctrlr)
1232 : {
1233 12607 : ctrlr->lock_depth--;
1234 12607 : return nvme_robust_mutex_unlock(&ctrlr->ctrlr_lock);
1235 : }
1236 :
1237 : /* Poll group management functions. */
1238 : int nvme_poll_group_connect_qpair(struct spdk_nvme_qpair *qpair);
1239 : int nvme_poll_group_disconnect_qpair(struct spdk_nvme_qpair *qpair);
1240 : void nvme_poll_group_write_disconnect_qpair_fd(struct spdk_nvme_poll_group *group);
1241 :
1242 : /* Admin functions */
1243 : int nvme_ctrlr_cmd_identify(struct spdk_nvme_ctrlr *ctrlr,
1244 : uint8_t cns, uint16_t cntid, uint32_t nsid,
1245 : uint8_t csi, void *payload, size_t payload_size,
1246 : spdk_nvme_cmd_cb cb_fn, void *cb_arg);
1247 : int nvme_ctrlr_cmd_set_num_queues(struct spdk_nvme_ctrlr *ctrlr,
1248 : uint32_t num_queues, spdk_nvme_cmd_cb cb_fn,
1249 : void *cb_arg);
1250 : int nvme_ctrlr_cmd_get_num_queues(struct spdk_nvme_ctrlr *ctrlr,
1251 : spdk_nvme_cmd_cb cb_fn, void *cb_arg);
1252 : int nvme_ctrlr_cmd_set_async_event_config(struct spdk_nvme_ctrlr *ctrlr,
1253 : union spdk_nvme_feat_async_event_configuration config,
1254 : spdk_nvme_cmd_cb cb_fn, void *cb_arg);
1255 : int nvme_ctrlr_cmd_set_host_id(struct spdk_nvme_ctrlr *ctrlr, void *host_id, uint32_t host_id_size,
1256 : spdk_nvme_cmd_cb cb_fn, void *cb_arg);
1257 : int nvme_ctrlr_cmd_attach_ns(struct spdk_nvme_ctrlr *ctrlr, uint32_t nsid,
1258 : struct spdk_nvme_ctrlr_list *payload, spdk_nvme_cmd_cb cb_fn, void *cb_arg);
1259 : int nvme_ctrlr_cmd_detach_ns(struct spdk_nvme_ctrlr *ctrlr, uint32_t nsid,
1260 : struct spdk_nvme_ctrlr_list *payload, spdk_nvme_cmd_cb cb_fn, void *cb_arg);
1261 : int nvme_ctrlr_cmd_create_ns(struct spdk_nvme_ctrlr *ctrlr, struct spdk_nvme_ns_data *payload,
1262 : spdk_nvme_cmd_cb cb_fn, void *cb_arg);
1263 : int nvme_ctrlr_cmd_doorbell_buffer_config(struct spdk_nvme_ctrlr *ctrlr,
1264 : uint64_t prp1, uint64_t prp2,
1265 : spdk_nvme_cmd_cb cb_fn, void *cb_arg);
1266 : int nvme_ctrlr_cmd_delete_ns(struct spdk_nvme_ctrlr *ctrlr, uint32_t nsid, spdk_nvme_cmd_cb cb_fn,
1267 : void *cb_arg);
1268 : int nvme_ctrlr_cmd_format(struct spdk_nvme_ctrlr *ctrlr, uint32_t nsid,
1269 : struct spdk_nvme_format *format, spdk_nvme_cmd_cb cb_fn, void *cb_arg);
1270 : int nvme_ctrlr_cmd_fw_commit(struct spdk_nvme_ctrlr *ctrlr,
1271 : const struct spdk_nvme_fw_commit *fw_commit,
1272 : spdk_nvme_cmd_cb cb_fn, void *cb_arg);
1273 : int nvme_ctrlr_cmd_fw_image_download(struct spdk_nvme_ctrlr *ctrlr,
1274 : uint32_t size, uint32_t offset, void *payload,
1275 : spdk_nvme_cmd_cb cb_fn, void *cb_arg);
1276 : int nvme_ctrlr_cmd_sanitize(struct spdk_nvme_ctrlr *ctrlr, uint32_t nsid,
1277 : struct spdk_nvme_sanitize *sanitize, uint32_t cdw11,
1278 : spdk_nvme_cmd_cb cb_fn, void *cb_arg);
1279 : void nvme_completion_poll_cb(void *arg, const struct spdk_nvme_cpl *cpl);
1280 : int nvme_wait_for_completion(struct spdk_nvme_qpair *qpair,
1281 : struct nvme_completion_poll_status *status);
1282 : int nvme_wait_for_completion_robust_lock(struct spdk_nvme_qpair *qpair,
1283 : struct nvme_completion_poll_status *status,
1284 : pthread_mutex_t *robust_mutex);
1285 : int nvme_wait_for_completion_timeout(struct spdk_nvme_qpair *qpair,
1286 : struct nvme_completion_poll_status *status,
1287 : uint64_t timeout_in_usecs);
1288 : int nvme_wait_for_completion_robust_lock_timeout(struct spdk_nvme_qpair *qpair,
1289 : struct nvme_completion_poll_status *status,
1290 : pthread_mutex_t *robust_mutex,
1291 : uint64_t timeout_in_usecs);
1292 : int nvme_wait_for_completion_robust_lock_timeout_poll(struct spdk_nvme_qpair *qpair,
1293 : struct nvme_completion_poll_status *status,
1294 : pthread_mutex_t *robust_mutex);
1295 :
1296 : struct spdk_nvme_ctrlr_process *nvme_ctrlr_get_process(struct spdk_nvme_ctrlr *ctrlr,
1297 : pid_t pid);
1298 : struct spdk_nvme_ctrlr_process *nvme_ctrlr_get_current_process(struct spdk_nvme_ctrlr *ctrlr);
1299 : int nvme_ctrlr_add_process(struct spdk_nvme_ctrlr *ctrlr, void *devhandle);
1300 : void nvme_ctrlr_free_processes(struct spdk_nvme_ctrlr *ctrlr);
1301 : struct spdk_pci_device *nvme_ctrlr_proc_get_devhandle(struct spdk_nvme_ctrlr *ctrlr);
1302 :
1303 : int nvme_ctrlr_probe(const struct spdk_nvme_transport_id *trid,
1304 : struct spdk_nvme_probe_ctx *probe_ctx, void *devhandle);
1305 :
1306 : int nvme_ctrlr_construct(struct spdk_nvme_ctrlr *ctrlr);
1307 : void nvme_ctrlr_destruct_finish(struct spdk_nvme_ctrlr *ctrlr);
1308 : void nvme_ctrlr_destruct(struct spdk_nvme_ctrlr *ctrlr);
1309 : void nvme_ctrlr_destruct_async(struct spdk_nvme_ctrlr *ctrlr,
1310 : struct nvme_ctrlr_detach_ctx *ctx);
1311 : int nvme_ctrlr_destruct_poll_async(struct spdk_nvme_ctrlr *ctrlr,
1312 : struct nvme_ctrlr_detach_ctx *ctx);
1313 : void nvme_ctrlr_fail(struct spdk_nvme_ctrlr *ctrlr, bool hot_remove);
1314 : int nvme_ctrlr_process_init(struct spdk_nvme_ctrlr *ctrlr);
1315 : void nvme_ctrlr_disable(struct spdk_nvme_ctrlr *ctrlr);
1316 : int nvme_ctrlr_disable_poll(struct spdk_nvme_ctrlr *ctrlr);
1317 : void nvme_ctrlr_connected(struct spdk_nvme_probe_ctx *probe_ctx,
1318 : struct spdk_nvme_ctrlr *ctrlr);
1319 :
1320 : int nvme_ctrlr_submit_admin_request(struct spdk_nvme_ctrlr *ctrlr,
1321 : struct nvme_request *req);
1322 : int nvme_ctrlr_get_cap(struct spdk_nvme_ctrlr *ctrlr, union spdk_nvme_cap_register *cap);
1323 : int nvme_ctrlr_get_vs(struct spdk_nvme_ctrlr *ctrlr, union spdk_nvme_vs_register *vs);
1324 : int nvme_ctrlr_get_cmbsz(struct spdk_nvme_ctrlr *ctrlr, union spdk_nvme_cmbsz_register *cmbsz);
1325 : int nvme_ctrlr_get_pmrcap(struct spdk_nvme_ctrlr *ctrlr, union spdk_nvme_pmrcap_register *pmrcap);
1326 : int nvme_ctrlr_get_bpinfo(struct spdk_nvme_ctrlr *ctrlr, union spdk_nvme_bpinfo_register *bpinfo);
1327 : int nvme_ctrlr_set_bprsel(struct spdk_nvme_ctrlr *ctrlr, union spdk_nvme_bprsel_register *bprsel);
1328 : int nvme_ctrlr_set_bpmbl(struct spdk_nvme_ctrlr *ctrlr, uint64_t bpmbl_value);
1329 : bool nvme_ctrlr_multi_iocs_enabled(struct spdk_nvme_ctrlr *ctrlr);
1330 : void nvme_ctrlr_disconnect_qpair(struct spdk_nvme_qpair *qpair);
1331 : void nvme_ctrlr_abort_queued_aborts(struct spdk_nvme_ctrlr *ctrlr);
1332 : int nvme_qpair_init(struct spdk_nvme_qpair *qpair, uint16_t id,
1333 : struct spdk_nvme_ctrlr *ctrlr,
1334 : enum spdk_nvme_qprio qprio,
1335 : uint32_t num_requests, bool async);
1336 : void nvme_qpair_deinit(struct spdk_nvme_qpair *qpair);
1337 : void nvme_qpair_complete_error_reqs(struct spdk_nvme_qpair *qpair);
1338 : int nvme_qpair_submit_request(struct spdk_nvme_qpair *qpair,
1339 : struct nvme_request *req);
1340 : void nvme_qpair_abort_all_queued_reqs(struct spdk_nvme_qpair *qpair);
1341 : uint32_t nvme_qpair_abort_queued_reqs_with_cbarg(struct spdk_nvme_qpair *qpair, void *cmd_cb_arg);
1342 : void nvme_qpair_abort_queued_reqs(struct spdk_nvme_qpair *qpair);
1343 : void nvme_qpair_resubmit_requests(struct spdk_nvme_qpair *qpair, uint32_t num_requests);
1344 : int nvme_ctrlr_identify_active_ns(struct spdk_nvme_ctrlr *ctrlr);
1345 : void nvme_ns_set_identify_data(struct spdk_nvme_ns *ns);
1346 : void nvme_ns_set_id_desc_list_data(struct spdk_nvme_ns *ns);
1347 : void nvme_ns_free_zns_specific_data(struct spdk_nvme_ns *ns);
1348 : void nvme_ns_free_nvm_specific_data(struct spdk_nvme_ns *ns);
1349 : void nvme_ns_free_iocs_specific_data(struct spdk_nvme_ns *ns);
1350 : bool nvme_ns_has_supported_iocs_specific_data(struct spdk_nvme_ns *ns);
1351 : int nvme_ns_construct(struct spdk_nvme_ns *ns, uint32_t id,
1352 : struct spdk_nvme_ctrlr *ctrlr);
1353 : void nvme_ns_destruct(struct spdk_nvme_ns *ns);
1354 : int nvme_ns_cmd_zone_append_with_md(struct spdk_nvme_ns *ns, struct spdk_nvme_qpair *qpair,
1355 : void *buffer, void *metadata, uint64_t zslba,
1356 : uint32_t lba_count, spdk_nvme_cmd_cb cb_fn, void *cb_arg,
1357 : uint32_t io_flags, uint16_t apptag_mask, uint16_t apptag);
1358 : int nvme_ns_cmd_zone_appendv_with_md(struct spdk_nvme_ns *ns, struct spdk_nvme_qpair *qpair,
1359 : uint64_t zslba, uint32_t lba_count,
1360 : spdk_nvme_cmd_cb cb_fn, void *cb_arg, uint32_t io_flags,
1361 : spdk_nvme_req_reset_sgl_cb reset_sgl_fn,
1362 : spdk_nvme_req_next_sge_cb next_sge_fn, void *metadata,
1363 : uint16_t apptag_mask, uint16_t apptag);
1364 :
1365 : int nvme_fabric_ctrlr_set_reg_4(struct spdk_nvme_ctrlr *ctrlr, uint32_t offset, uint32_t value);
1366 : int nvme_fabric_ctrlr_set_reg_8(struct spdk_nvme_ctrlr *ctrlr, uint32_t offset, uint64_t value);
1367 : int nvme_fabric_ctrlr_get_reg_4(struct spdk_nvme_ctrlr *ctrlr, uint32_t offset, uint32_t *value);
1368 : int nvme_fabric_ctrlr_get_reg_8(struct spdk_nvme_ctrlr *ctrlr, uint32_t offset, uint64_t *value);
1369 : int nvme_fabric_ctrlr_set_reg_4_async(struct spdk_nvme_ctrlr *ctrlr, uint32_t offset,
1370 : uint32_t value, spdk_nvme_reg_cb cb_fn, void *cb_arg);
1371 : int nvme_fabric_ctrlr_set_reg_8_async(struct spdk_nvme_ctrlr *ctrlr, uint32_t offset,
1372 : uint64_t value, spdk_nvme_reg_cb cb_fn, void *cb_arg);
1373 : int nvme_fabric_ctrlr_get_reg_4_async(struct spdk_nvme_ctrlr *ctrlr, uint32_t offset,
1374 : spdk_nvme_reg_cb cb_fn, void *cb_arg);
1375 : int nvme_fabric_ctrlr_get_reg_8_async(struct spdk_nvme_ctrlr *ctrlr, uint32_t offset,
1376 : spdk_nvme_reg_cb cb_fn, void *cb_arg);
1377 : int nvme_fabric_ctrlr_scan(struct spdk_nvme_probe_ctx *probe_ctx, bool direct_connect);
1378 : int nvme_fabric_ctrlr_discover(struct spdk_nvme_ctrlr *ctrlr,
1379 : struct spdk_nvme_probe_ctx *probe_ctx);
1380 : int nvme_fabric_qpair_connect(struct spdk_nvme_qpair *qpair, uint32_t num_entries);
1381 : int nvme_fabric_qpair_connect_async(struct spdk_nvme_qpair *qpair, uint32_t num_entries);
1382 : int nvme_fabric_qpair_connect_poll(struct spdk_nvme_qpair *qpair);
1383 : bool nvme_fabric_qpair_auth_required(struct spdk_nvme_qpair *qpair);
1384 : int nvme_fabric_qpair_authenticate_async(struct spdk_nvme_qpair *qpair);
1385 : int nvme_fabric_qpair_authenticate_poll(struct spdk_nvme_qpair *qpair);
1386 :
1387 : typedef int (*spdk_nvme_parse_ana_log_page_cb)(
1388 : const struct spdk_nvme_ana_group_descriptor *desc, void *cb_arg);
1389 : int nvme_ctrlr_parse_ana_log_page(struct spdk_nvme_ctrlr *ctrlr,
1390 : spdk_nvme_parse_ana_log_page_cb cb_fn, void *cb_arg);
1391 :
1392 : static inline void
1393 223 : nvme_request_clear(struct nvme_request *req)
1394 : {
1395 : /*
1396 : * Only memset/zero fields that need it. All other fields
1397 : * will be initialized appropriately either later in this
1398 : * function, or before they are needed later in the
1399 : * submission patch. For example, the children
1400 : * TAILQ_ENTRY and following members are
1401 : * only used as part of I/O splitting so we avoid
1402 : * memsetting them until it is actually needed.
1403 : * They will be initialized in nvme_request_add_child()
1404 : * if the request is split.
1405 : */
1406 223 : memset(req, 0, offsetof(struct nvme_request, payload_size));
1407 223 : }
1408 :
1409 : #define NVME_INIT_REQUEST(req, _cb_fn, _cb_arg, _payload, _payload_size, _md_size) \
1410 : do { \
1411 : nvme_request_clear(req); \
1412 : req->cb_fn = _cb_fn; \
1413 : req->cb_arg = _cb_arg; \
1414 : req->payload = _payload; \
1415 : req->payload_size = _payload_size; \
1416 : req->md_size = _md_size; \
1417 : req->pid = g_spdk_nvme_pid; \
1418 : req->submit_tick = 0; \
1419 : req->accel_sequence = NULL; \
1420 : } while (0);
1421 :
1422 : static inline struct nvme_request *
1423 234 : nvme_allocate_request(struct spdk_nvme_qpair *qpair,
1424 : const struct nvme_payload *payload, uint32_t payload_size, uint32_t md_size,
1425 : spdk_nvme_cmd_cb cb_fn, void *cb_arg)
1426 : {
1427 234 : struct nvme_request *req;
1428 :
1429 234 : req = STAILQ_FIRST(&qpair->free_req);
1430 234 : if (req == NULL) {
1431 14 : return req;
1432 : }
1433 :
1434 220 : STAILQ_REMOVE_HEAD(&qpair->free_req, stailq);
1435 220 : qpair->num_outstanding_reqs++;
1436 :
1437 220 : NVME_INIT_REQUEST(req, cb_fn, cb_arg, *payload, payload_size, md_size);
1438 :
1439 220 : return req;
1440 234 : }
1441 :
1442 : static inline struct nvme_request *
1443 118 : nvme_allocate_request_contig(struct spdk_nvme_qpair *qpair,
1444 : void *buffer, uint32_t payload_size,
1445 : spdk_nvme_cmd_cb cb_fn, void *cb_arg)
1446 : {
1447 118 : struct nvme_payload payload;
1448 :
1449 118 : payload = NVME_PAYLOAD_CONTIG(buffer, NULL);
1450 :
1451 236 : return nvme_allocate_request(qpair, &payload, payload_size, 0, cb_fn, cb_arg);
1452 118 : }
1453 :
1454 : static inline struct nvme_request *
1455 76 : nvme_allocate_request_null(struct spdk_nvme_qpair *qpair, spdk_nvme_cmd_cb cb_fn, void *cb_arg)
1456 : {
1457 76 : return nvme_allocate_request_contig(qpair, NULL, 0, cb_fn, cb_arg);
1458 : }
1459 :
1460 : struct nvme_request *nvme_allocate_request_user_copy(struct spdk_nvme_qpair *qpair,
1461 : void *buffer, uint32_t payload_size,
1462 : spdk_nvme_cmd_cb cb_fn, void *cb_arg, bool host_to_controller);
1463 :
1464 : static inline void
1465 159 : _nvme_free_request(struct nvme_request *req, struct spdk_nvme_qpair *qpair)
1466 : {
1467 159 : assert(req != NULL);
1468 159 : assert(req->num_children == 0);
1469 159 : assert(qpair != NULL);
1470 :
1471 : /* The reserved_req does not go in the free_req STAILQ - it is
1472 : * saved only for use with a FABRICS/CONNECT command.
1473 : */
1474 159 : if (spdk_likely(qpair->reserved_req != req)) {
1475 159 : STAILQ_INSERT_HEAD(&qpair->free_req, req, stailq);
1476 :
1477 159 : assert(qpair->num_outstanding_reqs > 0);
1478 159 : qpair->num_outstanding_reqs--;
1479 159 : }
1480 159 : }
1481 :
1482 : static inline void
1483 143 : nvme_free_request(struct nvme_request *req)
1484 : {
1485 143 : _nvme_free_request(req, req->qpair);
1486 143 : }
1487 :
1488 : static inline void
1489 16 : nvme_complete_request(spdk_nvme_cmd_cb cb_fn, void *cb_arg, struct spdk_nvme_qpair *qpair,
1490 : struct nvme_request *req, struct spdk_nvme_cpl *cpl)
1491 : {
1492 16 : struct spdk_nvme_cpl err_cpl;
1493 16 : struct nvme_error_cmd *cmd;
1494 :
1495 16 : if (spdk_unlikely(req->accel_sequence != NULL)) {
1496 0 : struct spdk_nvme_poll_group *pg = qpair->poll_group->group;
1497 :
1498 : /* Transports are required to execute the sequence and clear req->accel_sequence.
1499 : * If it's left non-NULL it must mean the request is failed. */
1500 0 : assert(spdk_nvme_cpl_is_error(cpl));
1501 0 : pg->accel_fn_table.abort_sequence(req->accel_sequence);
1502 0 : req->accel_sequence = NULL;
1503 0 : }
1504 :
1505 : /* error injection at completion path,
1506 : * only inject for successful completed commands
1507 : */
1508 16 : if (spdk_unlikely(!TAILQ_EMPTY(&qpair->err_cmd_head) &&
1509 : !spdk_nvme_cpl_is_error(cpl))) {
1510 2 : TAILQ_FOREACH(cmd, &qpair->err_cmd_head, link) {
1511 :
1512 1 : if (cmd->do_not_submit) {
1513 0 : continue;
1514 : }
1515 :
1516 1 : if ((cmd->opc == req->cmd.opc) && cmd->err_count) {
1517 :
1518 0 : err_cpl = *cpl;
1519 0 : err_cpl.status.sct = cmd->status.sct;
1520 0 : err_cpl.status.sc = cmd->status.sc;
1521 :
1522 0 : cpl = &err_cpl;
1523 0 : cmd->err_count--;
1524 0 : break;
1525 : }
1526 1 : }
1527 1 : }
1528 :
1529 : /* For PCIe completions, we want to avoid touching the req itself to avoid
1530 : * dependencies on loading those cachelines. So call the internal helper
1531 : * function instead using the qpair that was passed by the caller, instead
1532 : * of getting it from the req.
1533 : */
1534 16 : _nvme_free_request(req, qpair);
1535 :
1536 16 : if (spdk_likely(cb_fn)) {
1537 15 : cb_fn(cb_arg, cpl);
1538 15 : }
1539 16 : }
1540 :
1541 : static inline void
1542 6 : nvme_cleanup_user_req(struct nvme_request *req)
1543 : {
1544 6 : if (req->user_buffer && req->payload_size) {
1545 2 : spdk_free(req->payload.contig_or_cb_arg);
1546 2 : req->user_buffer = NULL;
1547 2 : }
1548 :
1549 6 : req->user_cb_arg = NULL;
1550 6 : req->user_cb_fn = NULL;
1551 6 : }
1552 :
1553 : static inline bool
1554 3 : nvme_request_abort_match(struct nvme_request *req, void *cmd_cb_arg)
1555 : {
1556 4 : return req->cb_arg == cmd_cb_arg ||
1557 2 : req->user_cb_arg == cmd_cb_arg ||
1558 1 : (req->parent != NULL && req->parent->cb_arg == cmd_cb_arg);
1559 : }
1560 :
1561 : static inline void
1562 42 : nvme_qpair_set_state(struct spdk_nvme_qpair *qpair, enum nvme_qpair_state state)
1563 : {
1564 42 : qpair->state = state;
1565 42 : if (state == NVME_QPAIR_ENABLED) {
1566 24 : qpair->is_new_qpair = false;
1567 24 : }
1568 42 : }
1569 :
1570 : static inline enum nvme_qpair_state
1571 139 : nvme_qpair_get_state(struct spdk_nvme_qpair *qpair) {
1572 139 : return qpair->state;
1573 : }
1574 :
1575 : static inline void
1576 70 : nvme_request_remove_child(struct nvme_request *parent, struct nvme_request *child)
1577 : {
1578 70 : assert(parent != NULL);
1579 70 : assert(child != NULL);
1580 70 : assert(child->parent == parent);
1581 70 : assert(parent->num_children != 0);
1582 :
1583 70 : parent->num_children--;
1584 70 : child->parent = NULL;
1585 70 : TAILQ_REMOVE(&parent->children, child, child_tailq);
1586 70 : }
1587 :
1588 : static inline void
1589 0 : nvme_cb_complete_child(void *child_arg, const struct spdk_nvme_cpl *cpl)
1590 : {
1591 0 : struct nvme_request *child = child_arg;
1592 0 : struct nvme_request *parent = child->parent;
1593 :
1594 0 : nvme_request_remove_child(parent, child);
1595 :
1596 0 : if (spdk_nvme_cpl_is_error(cpl)) {
1597 0 : memcpy(&parent->parent_status, cpl, sizeof(*cpl));
1598 0 : }
1599 :
1600 0 : if (parent->num_children == 0) {
1601 0 : nvme_complete_request(parent->cb_fn, parent->cb_arg, parent->qpair,
1602 0 : parent, &parent->parent_status);
1603 0 : }
1604 0 : }
1605 :
1606 : static inline void
1607 57 : nvme_request_add_child(struct nvme_request *parent, struct nvme_request *child)
1608 : {
1609 57 : assert(parent->num_children != UINT16_MAX);
1610 :
1611 57 : if (parent->num_children == 0) {
1612 : /*
1613 : * Defer initialization of the children TAILQ since it falls
1614 : * on a separate cacheline. This ensures we do not touch this
1615 : * cacheline except on request splitting cases, which are
1616 : * relatively rare.
1617 : */
1618 15 : TAILQ_INIT(&parent->children);
1619 15 : parent->parent = NULL;
1620 15 : memset(&parent->parent_status, 0, sizeof(struct spdk_nvme_cpl));
1621 15 : }
1622 :
1623 57 : parent->num_children++;
1624 57 : TAILQ_INSERT_TAIL(&parent->children, child, child_tailq);
1625 57 : child->parent = parent;
1626 57 : child->cb_fn = nvme_cb_complete_child;
1627 57 : child->cb_arg = child;
1628 57 : }
1629 :
1630 : static inline void
1631 69 : nvme_request_free_children(struct nvme_request *req)
1632 : {
1633 69 : struct nvme_request *child, *tmp;
1634 :
1635 69 : if (req->num_children == 0) {
1636 57 : return;
1637 : }
1638 :
1639 : /* free all child nvme_request */
1640 62 : TAILQ_FOREACH_SAFE(child, &req->children, child_tailq, tmp) {
1641 50 : nvme_request_remove_child(req, child);
1642 50 : nvme_request_free_children(child);
1643 50 : nvme_free_request(child);
1644 50 : }
1645 69 : }
1646 :
1647 : int nvme_request_check_timeout(struct nvme_request *req, uint16_t cid,
1648 : struct spdk_nvme_ctrlr_process *active_proc, uint64_t now_tick);
1649 : uint64_t nvme_get_quirks(const struct spdk_pci_id *id);
1650 :
1651 : int nvme_robust_mutex_init_shared(pthread_mutex_t *mtx);
1652 : int nvme_robust_mutex_init_recursive_shared(pthread_mutex_t *mtx);
1653 :
1654 : bool nvme_completion_is_retry(const struct spdk_nvme_cpl *cpl);
1655 :
1656 : struct spdk_nvme_ctrlr *nvme_get_ctrlr_by_trid_unsafe(
1657 : const struct spdk_nvme_transport_id *trid, const char *hostnqn);
1658 :
1659 : const struct spdk_nvme_transport *nvme_get_transport(const char *transport_name);
1660 : const struct spdk_nvme_transport *nvme_get_first_transport(void);
1661 : const struct spdk_nvme_transport *nvme_get_next_transport(const struct spdk_nvme_transport
1662 : *transport);
1663 : void nvme_ctrlr_update_namespaces(struct spdk_nvme_ctrlr *ctrlr);
1664 :
1665 : /* Transport specific functions */
1666 : struct spdk_nvme_ctrlr *nvme_transport_ctrlr_construct(const struct spdk_nvme_transport_id *trid,
1667 : const struct spdk_nvme_ctrlr_opts *opts,
1668 : void *devhandle);
1669 : int nvme_transport_ctrlr_destruct(struct spdk_nvme_ctrlr *ctrlr);
1670 : int nvme_transport_ctrlr_scan(struct spdk_nvme_probe_ctx *probe_ctx, bool direct_connect);
1671 : int nvme_transport_ctrlr_scan_attached(struct spdk_nvme_probe_ctx *probe_ctx);
1672 : int nvme_transport_ctrlr_enable(struct spdk_nvme_ctrlr *ctrlr);
1673 : int nvme_transport_ctrlr_ready(struct spdk_nvme_ctrlr *ctrlr);
1674 : int nvme_transport_ctrlr_enable_interrupts(struct spdk_nvme_ctrlr *ctrlr);
1675 : int nvme_transport_ctrlr_set_reg_4(struct spdk_nvme_ctrlr *ctrlr, uint32_t offset, uint32_t value);
1676 : int nvme_transport_ctrlr_set_reg_8(struct spdk_nvme_ctrlr *ctrlr, uint32_t offset, uint64_t value);
1677 : int nvme_transport_ctrlr_get_reg_4(struct spdk_nvme_ctrlr *ctrlr, uint32_t offset, uint32_t *value);
1678 : int nvme_transport_ctrlr_get_reg_8(struct spdk_nvme_ctrlr *ctrlr, uint32_t offset, uint64_t *value);
1679 : int nvme_transport_ctrlr_set_reg_4_async(struct spdk_nvme_ctrlr *ctrlr, uint32_t offset,
1680 : uint32_t value, spdk_nvme_reg_cb cb_fn, void *cb_arg);
1681 : int nvme_transport_ctrlr_set_reg_8_async(struct spdk_nvme_ctrlr *ctrlr, uint32_t offset,
1682 : uint64_t value, spdk_nvme_reg_cb cb_fn, void *cb_arg);
1683 : int nvme_transport_ctrlr_get_reg_4_async(struct spdk_nvme_ctrlr *ctrlr, uint32_t offset,
1684 : spdk_nvme_reg_cb cb_fn, void *cb_arg);
1685 : int nvme_transport_ctrlr_get_reg_8_async(struct spdk_nvme_ctrlr *ctrlr, uint32_t offset,
1686 : spdk_nvme_reg_cb cb_fn, void *cb_arg);
1687 : uint32_t nvme_transport_ctrlr_get_max_xfer_size(struct spdk_nvme_ctrlr *ctrlr);
1688 : uint16_t nvme_transport_ctrlr_get_max_sges(struct spdk_nvme_ctrlr *ctrlr);
1689 : struct spdk_nvme_qpair *nvme_transport_ctrlr_create_io_qpair(struct spdk_nvme_ctrlr *ctrlr,
1690 : uint16_t qid, const struct spdk_nvme_io_qpair_opts *opts);
1691 : int nvme_transport_ctrlr_reserve_cmb(struct spdk_nvme_ctrlr *ctrlr);
1692 : void *nvme_transport_ctrlr_map_cmb(struct spdk_nvme_ctrlr *ctrlr, size_t *size);
1693 : int nvme_transport_ctrlr_unmap_cmb(struct spdk_nvme_ctrlr *ctrlr);
1694 : int nvme_transport_ctrlr_enable_pmr(struct spdk_nvme_ctrlr *ctrlr);
1695 : int nvme_transport_ctrlr_disable_pmr(struct spdk_nvme_ctrlr *ctrlr);
1696 : void *nvme_transport_ctrlr_map_pmr(struct spdk_nvme_ctrlr *ctrlr, size_t *size);
1697 : int nvme_transport_ctrlr_unmap_pmr(struct spdk_nvme_ctrlr *ctrlr);
1698 : void nvme_transport_ctrlr_delete_io_qpair(struct spdk_nvme_ctrlr *ctrlr,
1699 : struct spdk_nvme_qpair *qpair);
1700 : int nvme_transport_ctrlr_connect_qpair(struct spdk_nvme_ctrlr *ctrlr,
1701 : struct spdk_nvme_qpair *qpair);
1702 : void nvme_transport_ctrlr_disconnect_qpair(struct spdk_nvme_ctrlr *ctrlr,
1703 : struct spdk_nvme_qpair *qpair);
1704 : void nvme_transport_ctrlr_disconnect_qpair_done(struct spdk_nvme_qpair *qpair);
1705 : int nvme_transport_ctrlr_get_memory_domains(const struct spdk_nvme_ctrlr *ctrlr,
1706 : struct spdk_memory_domain **domains, int array_size);
1707 : void nvme_transport_qpair_abort_reqs(struct spdk_nvme_qpair *qpair);
1708 : int nvme_transport_qpair_reset(struct spdk_nvme_qpair *qpair);
1709 : int nvme_transport_qpair_submit_request(struct spdk_nvme_qpair *qpair, struct nvme_request *req);
1710 : int nvme_transport_qpair_get_fd(struct spdk_nvme_ctrlr *ctrlr, struct spdk_nvme_qpair *qpair,
1711 : struct spdk_event_handler_opts *opts);
1712 : int32_t nvme_transport_qpair_process_completions(struct spdk_nvme_qpair *qpair,
1713 : uint32_t max_completions);
1714 : void nvme_transport_admin_qpair_abort_aers(struct spdk_nvme_qpair *qpair);
1715 : int nvme_transport_qpair_iterate_requests(struct spdk_nvme_qpair *qpair,
1716 : int (*iter_fn)(struct nvme_request *req, void *arg),
1717 : void *arg);
1718 : int nvme_transport_qpair_authenticate(struct spdk_nvme_qpair *qpair);
1719 :
1720 : struct spdk_nvme_transport_poll_group *nvme_transport_poll_group_create(
1721 : const struct spdk_nvme_transport *transport);
1722 : struct spdk_nvme_transport_poll_group *nvme_transport_qpair_get_optimal_poll_group(
1723 : const struct spdk_nvme_transport *transport,
1724 : struct spdk_nvme_qpair *qpair);
1725 : int nvme_transport_poll_group_add(struct spdk_nvme_transport_poll_group *tgroup,
1726 : struct spdk_nvme_qpair *qpair);
1727 : int nvme_transport_poll_group_remove(struct spdk_nvme_transport_poll_group *tgroup,
1728 : struct spdk_nvme_qpair *qpair);
1729 : int nvme_transport_poll_group_disconnect_qpair(struct spdk_nvme_qpair *qpair);
1730 : int nvme_transport_poll_group_connect_qpair(struct spdk_nvme_qpair *qpair);
1731 : int64_t nvme_transport_poll_group_process_completions(struct spdk_nvme_transport_poll_group *tgroup,
1732 : uint32_t completions_per_qpair, spdk_nvme_disconnected_qpair_cb disconnected_qpair_cb);
1733 : void nvme_transport_poll_group_check_disconnected_qpairs(
1734 : struct spdk_nvme_transport_poll_group *tgroup,
1735 : spdk_nvme_disconnected_qpair_cb disconnected_qpair_cb);
1736 : int nvme_transport_poll_group_destroy(struct spdk_nvme_transport_poll_group *tgroup);
1737 : int nvme_transport_poll_group_get_stats(struct spdk_nvme_transport_poll_group *tgroup,
1738 : struct spdk_nvme_transport_poll_group_stat **stats);
1739 : void nvme_transport_poll_group_free_stats(struct spdk_nvme_transport_poll_group *tgroup,
1740 : struct spdk_nvme_transport_poll_group_stat *stats);
1741 : enum spdk_nvme_transport_type nvme_transport_get_trtype(const struct spdk_nvme_transport
1742 : *transport);
1743 : /*
1744 : * Below ref related functions must be called with the global
1745 : * driver lock held for the multi-process condition.
1746 : * Within these functions, the per ctrlr ctrlr_lock is also
1747 : * acquired for the multi-thread condition.
1748 : */
1749 : void nvme_ctrlr_proc_get_ref(struct spdk_nvme_ctrlr *ctrlr);
1750 : void nvme_ctrlr_proc_put_ref(struct spdk_nvme_ctrlr *ctrlr);
1751 : int nvme_ctrlr_get_ref_count(struct spdk_nvme_ctrlr *ctrlr);
1752 :
1753 : int nvme_ctrlr_reinitialize_io_qpair(struct spdk_nvme_ctrlr *ctrlr, struct spdk_nvme_qpair *qpair);
1754 : int nvme_parse_addr(struct sockaddr_storage *sa, int family,
1755 : const char *addr, const char *service, long int *port);
1756 : int nvme_get_default_hostnqn(char *buf, int len);
1757 :
1758 : static inline bool
1759 5 : _is_page_aligned(uint64_t address, uint64_t page_size)
1760 : {
1761 5 : return (address & (page_size - 1)) == 0;
1762 : }
1763 :
1764 : #endif /* __NVME_INTERNAL_H__ */
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