aboutsummaryrefslogtreecommitdiffstats
path: root/include
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2013-09-07 23:19:02 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2013-09-07 23:19:02 -0400
commitb409624ad5a99c2e84df6657bd0f7931ac470d2d (patch)
treea4d2197ed560300b831504789744fd10a3c58039 /include
parentc4c17252283a13c0d63a8d9df828da109c116411 (diff)
parentd82e8bfdef9afae83b894be49af4644d9ac3c359 (diff)
Merge git://git.infradead.org/users/willy/linux-nvme
Pull NVM Express driver update from Matthew Wilcox. * git://git.infradead.org/users/willy/linux-nvme: NVMe: Merge issue on character device bring-up NVMe: Handle ioremap failure NVMe: Add pci suspend/resume driver callbacks NVMe: Use normal shutdown NVMe: Separate controller init from disk discovery NVMe: Separate queue alloc/free from create/delete NVMe: Group pci related actions in functions NVMe: Disk stats for read/write commands only NVMe: Bring up cdev on set feature failure NVMe: Fix checkpatch issues NVMe: Namespace IDs are unsigned NVMe: Update nvme_id_power_state with latest spec NVMe: Split header file into user-visible and kernel-visible pieces NVMe: Call nvme_process_cq from submission path NVMe: Remove "process_cq did something" message NVMe: Return correct value from interrupt handler NVMe: Disk IO statistics NVMe: Restructure MSI / MSI-X setup NVMe: Use kzalloc instead of kmalloc+memset
Diffstat (limited to 'include')
-rw-r--r--include/linux/nvme.h466
-rw-r--r--include/uapi/linux/Kbuild1
-rw-r--r--include/uapi/linux/nvme.h477
3 files changed, 487 insertions, 457 deletions
diff --git a/include/linux/nvme.h b/include/linux/nvme.h
index f451c8d6e231..26ebcf41c213 100644
--- a/include/linux/nvme.h
+++ b/include/linux/nvme.h
@@ -1,6 +1,6 @@
1/* 1/*
2 * Definitions for the NVM Express interface 2 * Definitions for the NVM Express interface
3 * Copyright (c) 2011, Intel Corporation. 3 * Copyright (c) 2011-2013, Intel Corporation.
4 * 4 *
5 * This program is free software; you can redistribute it and/or modify it 5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms and conditions of the GNU General Public License, 6 * under the terms and conditions of the GNU General Public License,
@@ -19,7 +19,10 @@
19#ifndef _LINUX_NVME_H 19#ifndef _LINUX_NVME_H
20#define _LINUX_NVME_H 20#define _LINUX_NVME_H
21 21
22#include <linux/types.h> 22#include <uapi/linux/nvme.h>
23#include <linux/pci.h>
24#include <linux/miscdevice.h>
25#include <linux/kref.h>
23 26
24struct nvme_bar { 27struct nvme_bar {
25 __u64 cap; /* Controller Capabilities */ 28 __u64 cap; /* Controller Capabilities */
@@ -50,6 +53,7 @@ enum {
50 NVME_CC_SHN_NONE = 0 << 14, 53 NVME_CC_SHN_NONE = 0 << 14,
51 NVME_CC_SHN_NORMAL = 1 << 14, 54 NVME_CC_SHN_NORMAL = 1 << 14,
52 NVME_CC_SHN_ABRUPT = 2 << 14, 55 NVME_CC_SHN_ABRUPT = 2 << 14,
56 NVME_CC_SHN_MASK = 3 << 14,
53 NVME_CC_IOSQES = 6 << 16, 57 NVME_CC_IOSQES = 6 << 16,
54 NVME_CC_IOCQES = 4 << 20, 58 NVME_CC_IOCQES = 4 << 20,
55 NVME_CSTS_RDY = 1 << 0, 59 NVME_CSTS_RDY = 1 << 0,
@@ -57,462 +61,11 @@ enum {
57 NVME_CSTS_SHST_NORMAL = 0 << 2, 61 NVME_CSTS_SHST_NORMAL = 0 << 2,
58 NVME_CSTS_SHST_OCCUR = 1 << 2, 62 NVME_CSTS_SHST_OCCUR = 1 << 2,
59 NVME_CSTS_SHST_CMPLT = 2 << 2, 63 NVME_CSTS_SHST_CMPLT = 2 << 2,
60}; 64 NVME_CSTS_SHST_MASK = 3 << 2,
61
62struct nvme_id_power_state {
63 __le16 max_power; /* centiwatts */
64 __u16 rsvd2;
65 __le32 entry_lat; /* microseconds */
66 __le32 exit_lat; /* microseconds */
67 __u8 read_tput;
68 __u8 read_lat;
69 __u8 write_tput;
70 __u8 write_lat;
71 __u8 rsvd16[16];
72}; 65};
73 66
74#define NVME_VS(major, minor) (major << 16 | minor) 67#define NVME_VS(major, minor) (major << 16 | minor)
75 68
76struct nvme_id_ctrl {
77 __le16 vid;
78 __le16 ssvid;
79 char sn[20];
80 char mn[40];
81 char fr[8];
82 __u8 rab;
83 __u8 ieee[3];
84 __u8 mic;
85 __u8 mdts;
86 __u8 rsvd78[178];
87 __le16 oacs;
88 __u8 acl;
89 __u8 aerl;
90 __u8 frmw;
91 __u8 lpa;
92 __u8 elpe;
93 __u8 npss;
94 __u8 rsvd264[248];
95 __u8 sqes;
96 __u8 cqes;
97 __u8 rsvd514[2];
98 __le32 nn;
99 __le16 oncs;
100 __le16 fuses;
101 __u8 fna;
102 __u8 vwc;
103 __le16 awun;
104 __le16 awupf;
105 __u8 rsvd530[1518];
106 struct nvme_id_power_state psd[32];
107 __u8 vs[1024];
108};
109
110enum {
111 NVME_CTRL_ONCS_COMPARE = 1 << 0,
112 NVME_CTRL_ONCS_WRITE_UNCORRECTABLE = 1 << 1,
113 NVME_CTRL_ONCS_DSM = 1 << 2,
114};
115
116struct nvme_lbaf {
117 __le16 ms;
118 __u8 ds;
119 __u8 rp;
120};
121
122struct nvme_id_ns {
123 __le64 nsze;
124 __le64 ncap;
125 __le64 nuse;
126 __u8 nsfeat;
127 __u8 nlbaf;
128 __u8 flbas;
129 __u8 mc;
130 __u8 dpc;
131 __u8 dps;
132 __u8 rsvd30[98];
133 struct nvme_lbaf lbaf[16];
134 __u8 rsvd192[192];
135 __u8 vs[3712];
136};
137
138enum {
139 NVME_NS_FEAT_THIN = 1 << 0,
140 NVME_LBAF_RP_BEST = 0,
141 NVME_LBAF_RP_BETTER = 1,
142 NVME_LBAF_RP_GOOD = 2,
143 NVME_LBAF_RP_DEGRADED = 3,
144};
145
146struct nvme_smart_log {
147 __u8 critical_warning;
148 __u8 temperature[2];
149 __u8 avail_spare;
150 __u8 spare_thresh;
151 __u8 percent_used;
152 __u8 rsvd6[26];
153 __u8 data_units_read[16];
154 __u8 data_units_written[16];
155 __u8 host_reads[16];
156 __u8 host_writes[16];
157 __u8 ctrl_busy_time[16];
158 __u8 power_cycles[16];
159 __u8 power_on_hours[16];
160 __u8 unsafe_shutdowns[16];
161 __u8 media_errors[16];
162 __u8 num_err_log_entries[16];
163 __u8 rsvd192[320];
164};
165
166enum {
167 NVME_SMART_CRIT_SPARE = 1 << 0,
168 NVME_SMART_CRIT_TEMPERATURE = 1 << 1,
169 NVME_SMART_CRIT_RELIABILITY = 1 << 2,
170 NVME_SMART_CRIT_MEDIA = 1 << 3,
171 NVME_SMART_CRIT_VOLATILE_MEMORY = 1 << 4,
172};
173
174struct nvme_lba_range_type {
175 __u8 type;
176 __u8 attributes;
177 __u8 rsvd2[14];
178 __u64 slba;
179 __u64 nlb;
180 __u8 guid[16];
181 __u8 rsvd48[16];
182};
183
184enum {
185 NVME_LBART_TYPE_FS = 0x01,
186 NVME_LBART_TYPE_RAID = 0x02,
187 NVME_LBART_TYPE_CACHE = 0x03,
188 NVME_LBART_TYPE_SWAP = 0x04,
189
190 NVME_LBART_ATTRIB_TEMP = 1 << 0,
191 NVME_LBART_ATTRIB_HIDE = 1 << 1,
192};
193
194/* I/O commands */
195
196enum nvme_opcode {
197 nvme_cmd_flush = 0x00,
198 nvme_cmd_write = 0x01,
199 nvme_cmd_read = 0x02,
200 nvme_cmd_write_uncor = 0x04,
201 nvme_cmd_compare = 0x05,
202 nvme_cmd_dsm = 0x09,
203};
204
205struct nvme_common_command {
206 __u8 opcode;
207 __u8 flags;
208 __u16 command_id;
209 __le32 nsid;
210 __le32 cdw2[2];
211 __le64 metadata;
212 __le64 prp1;
213 __le64 prp2;
214 __le32 cdw10[6];
215};
216
217struct nvme_rw_command {
218 __u8 opcode;
219 __u8 flags;
220 __u16 command_id;
221 __le32 nsid;
222 __u64 rsvd2;
223 __le64 metadata;
224 __le64 prp1;
225 __le64 prp2;
226 __le64 slba;
227 __le16 length;
228 __le16 control;
229 __le32 dsmgmt;
230 __le32 reftag;
231 __le16 apptag;
232 __le16 appmask;
233};
234
235enum {
236 NVME_RW_LR = 1 << 15,
237 NVME_RW_FUA = 1 << 14,
238 NVME_RW_DSM_FREQ_UNSPEC = 0,
239 NVME_RW_DSM_FREQ_TYPICAL = 1,
240 NVME_RW_DSM_FREQ_RARE = 2,
241 NVME_RW_DSM_FREQ_READS = 3,
242 NVME_RW_DSM_FREQ_WRITES = 4,
243 NVME_RW_DSM_FREQ_RW = 5,
244 NVME_RW_DSM_FREQ_ONCE = 6,
245 NVME_RW_DSM_FREQ_PREFETCH = 7,
246 NVME_RW_DSM_FREQ_TEMP = 8,
247 NVME_RW_DSM_LATENCY_NONE = 0 << 4,
248 NVME_RW_DSM_LATENCY_IDLE = 1 << 4,
249 NVME_RW_DSM_LATENCY_NORM = 2 << 4,
250 NVME_RW_DSM_LATENCY_LOW = 3 << 4,
251 NVME_RW_DSM_SEQ_REQ = 1 << 6,
252 NVME_RW_DSM_COMPRESSED = 1 << 7,
253};
254
255struct nvme_dsm_cmd {
256 __u8 opcode;
257 __u8 flags;
258 __u16 command_id;
259 __le32 nsid;
260 __u64 rsvd2[2];
261 __le64 prp1;
262 __le64 prp2;
263 __le32 nr;
264 __le32 attributes;
265 __u32 rsvd12[4];
266};
267
268enum {
269 NVME_DSMGMT_IDR = 1 << 0,
270 NVME_DSMGMT_IDW = 1 << 1,
271 NVME_DSMGMT_AD = 1 << 2,
272};
273
274struct nvme_dsm_range {
275 __le32 cattr;
276 __le32 nlb;
277 __le64 slba;
278};
279
280/* Admin commands */
281
282enum nvme_admin_opcode {
283 nvme_admin_delete_sq = 0x00,
284 nvme_admin_create_sq = 0x01,
285 nvme_admin_get_log_page = 0x02,
286 nvme_admin_delete_cq = 0x04,
287 nvme_admin_create_cq = 0x05,
288 nvme_admin_identify = 0x06,
289 nvme_admin_abort_cmd = 0x08,
290 nvme_admin_set_features = 0x09,
291 nvme_admin_get_features = 0x0a,
292 nvme_admin_async_event = 0x0c,
293 nvme_admin_activate_fw = 0x10,
294 nvme_admin_download_fw = 0x11,
295 nvme_admin_format_nvm = 0x80,
296 nvme_admin_security_send = 0x81,
297 nvme_admin_security_recv = 0x82,
298};
299
300enum {
301 NVME_QUEUE_PHYS_CONTIG = (1 << 0),
302 NVME_CQ_IRQ_ENABLED = (1 << 1),
303 NVME_SQ_PRIO_URGENT = (0 << 1),
304 NVME_SQ_PRIO_HIGH = (1 << 1),
305 NVME_SQ_PRIO_MEDIUM = (2 << 1),
306 NVME_SQ_PRIO_LOW = (3 << 1),
307 NVME_FEAT_ARBITRATION = 0x01,
308 NVME_FEAT_POWER_MGMT = 0x02,
309 NVME_FEAT_LBA_RANGE = 0x03,
310 NVME_FEAT_TEMP_THRESH = 0x04,
311 NVME_FEAT_ERR_RECOVERY = 0x05,
312 NVME_FEAT_VOLATILE_WC = 0x06,
313 NVME_FEAT_NUM_QUEUES = 0x07,
314 NVME_FEAT_IRQ_COALESCE = 0x08,
315 NVME_FEAT_IRQ_CONFIG = 0x09,
316 NVME_FEAT_WRITE_ATOMIC = 0x0a,
317 NVME_FEAT_ASYNC_EVENT = 0x0b,
318 NVME_FEAT_SW_PROGRESS = 0x0c,
319 NVME_FWACT_REPL = (0 << 3),
320 NVME_FWACT_REPL_ACTV = (1 << 3),
321 NVME_FWACT_ACTV = (2 << 3),
322};
323
324struct nvme_identify {
325 __u8 opcode;
326 __u8 flags;
327 __u16 command_id;
328 __le32 nsid;
329 __u64 rsvd2[2];
330 __le64 prp1;
331 __le64 prp2;
332 __le32 cns;
333 __u32 rsvd11[5];
334};
335
336struct nvme_features {
337 __u8 opcode;
338 __u8 flags;
339 __u16 command_id;
340 __le32 nsid;
341 __u64 rsvd2[2];
342 __le64 prp1;
343 __le64 prp2;
344 __le32 fid;
345 __le32 dword11;
346 __u32 rsvd12[4];
347};
348
349struct nvme_create_cq {
350 __u8 opcode;
351 __u8 flags;
352 __u16 command_id;
353 __u32 rsvd1[5];
354 __le64 prp1;
355 __u64 rsvd8;
356 __le16 cqid;
357 __le16 qsize;
358 __le16 cq_flags;
359 __le16 irq_vector;
360 __u32 rsvd12[4];
361};
362
363struct nvme_create_sq {
364 __u8 opcode;
365 __u8 flags;
366 __u16 command_id;
367 __u32 rsvd1[5];
368 __le64 prp1;
369 __u64 rsvd8;
370 __le16 sqid;
371 __le16 qsize;
372 __le16 sq_flags;
373 __le16 cqid;
374 __u32 rsvd12[4];
375};
376
377struct nvme_delete_queue {
378 __u8 opcode;
379 __u8 flags;
380 __u16 command_id;
381 __u32 rsvd1[9];
382 __le16 qid;
383 __u16 rsvd10;
384 __u32 rsvd11[5];
385};
386
387struct nvme_download_firmware {
388 __u8 opcode;
389 __u8 flags;
390 __u16 command_id;
391 __u32 rsvd1[5];
392 __le64 prp1;
393 __le64 prp2;
394 __le32 numd;
395 __le32 offset;
396 __u32 rsvd12[4];
397};
398
399struct nvme_format_cmd {
400 __u8 opcode;
401 __u8 flags;
402 __u16 command_id;
403 __le32 nsid;
404 __u64 rsvd2[4];
405 __le32 cdw10;
406 __u32 rsvd11[5];
407};
408
409struct nvme_command {
410 union {
411 struct nvme_common_command common;
412 struct nvme_rw_command rw;
413 struct nvme_identify identify;
414 struct nvme_features features;
415 struct nvme_create_cq create_cq;
416 struct nvme_create_sq create_sq;
417 struct nvme_delete_queue delete_queue;
418 struct nvme_download_firmware dlfw;
419 struct nvme_format_cmd format;
420 struct nvme_dsm_cmd dsm;
421 };
422};
423
424enum {
425 NVME_SC_SUCCESS = 0x0,
426 NVME_SC_INVALID_OPCODE = 0x1,
427 NVME_SC_INVALID_FIELD = 0x2,
428 NVME_SC_CMDID_CONFLICT = 0x3,
429 NVME_SC_DATA_XFER_ERROR = 0x4,
430 NVME_SC_POWER_LOSS = 0x5,
431 NVME_SC_INTERNAL = 0x6,
432 NVME_SC_ABORT_REQ = 0x7,
433 NVME_SC_ABORT_QUEUE = 0x8,
434 NVME_SC_FUSED_FAIL = 0x9,
435 NVME_SC_FUSED_MISSING = 0xa,
436 NVME_SC_INVALID_NS = 0xb,
437 NVME_SC_CMD_SEQ_ERROR = 0xc,
438 NVME_SC_LBA_RANGE = 0x80,
439 NVME_SC_CAP_EXCEEDED = 0x81,
440 NVME_SC_NS_NOT_READY = 0x82,
441 NVME_SC_CQ_INVALID = 0x100,
442 NVME_SC_QID_INVALID = 0x101,
443 NVME_SC_QUEUE_SIZE = 0x102,
444 NVME_SC_ABORT_LIMIT = 0x103,
445 NVME_SC_ABORT_MISSING = 0x104,
446 NVME_SC_ASYNC_LIMIT = 0x105,
447 NVME_SC_FIRMWARE_SLOT = 0x106,
448 NVME_SC_FIRMWARE_IMAGE = 0x107,
449 NVME_SC_INVALID_VECTOR = 0x108,
450 NVME_SC_INVALID_LOG_PAGE = 0x109,
451 NVME_SC_INVALID_FORMAT = 0x10a,
452 NVME_SC_BAD_ATTRIBUTES = 0x180,
453 NVME_SC_WRITE_FAULT = 0x280,
454 NVME_SC_READ_ERROR = 0x281,
455 NVME_SC_GUARD_CHECK = 0x282,
456 NVME_SC_APPTAG_CHECK = 0x283,
457 NVME_SC_REFTAG_CHECK = 0x284,
458 NVME_SC_COMPARE_FAILED = 0x285,
459 NVME_SC_ACCESS_DENIED = 0x286,
460};
461
462struct nvme_completion {
463 __le32 result; /* Used by admin commands to return data */
464 __u32 rsvd;
465 __le16 sq_head; /* how much of this queue may be reclaimed */
466 __le16 sq_id; /* submission queue that generated this entry */
467 __u16 command_id; /* of the command which completed */
468 __le16 status; /* did the command fail, and if so, why? */
469};
470
471struct nvme_user_io {
472 __u8 opcode;
473 __u8 flags;
474 __u16 control;
475 __u16 nblocks;
476 __u16 rsvd;
477 __u64 metadata;
478 __u64 addr;
479 __u64 slba;
480 __u32 dsmgmt;
481 __u32 reftag;
482 __u16 apptag;
483 __u16 appmask;
484};
485
486struct nvme_admin_cmd {
487 __u8 opcode;
488 __u8 flags;
489 __u16 rsvd1;
490 __u32 nsid;
491 __u32 cdw2;
492 __u32 cdw3;
493 __u64 metadata;
494 __u64 addr;
495 __u32 metadata_len;
496 __u32 data_len;
497 __u32 cdw10;
498 __u32 cdw11;
499 __u32 cdw12;
500 __u32 cdw13;
501 __u32 cdw14;
502 __u32 cdw15;
503 __u32 timeout_ms;
504 __u32 result;
505};
506
507#define NVME_IOCTL_ID _IO('N', 0x40)
508#define NVME_IOCTL_ADMIN_CMD _IOWR('N', 0x41, struct nvme_admin_cmd)
509#define NVME_IOCTL_SUBMIT_IO _IOW('N', 0x42, struct nvme_user_io)
510
511#ifdef __KERNEL__
512#include <linux/pci.h>
513#include <linux/miscdevice.h>
514#include <linux/kref.h>
515
516#define NVME_IO_TIMEOUT (5 * HZ) 69#define NVME_IO_TIMEOUT (5 * HZ)
517 70
518/* 71/*
@@ -553,7 +106,7 @@ struct nvme_ns {
553 struct request_queue *queue; 106 struct request_queue *queue;
554 struct gendisk *disk; 107 struct gendisk *disk;
555 108
556 int ns_id; 109 unsigned ns_id;
557 int lba_shift; 110 int lba_shift;
558 int ms; 111 int ms;
559 u64 mode_select_num_blocks; 112 u64 mode_select_num_blocks;
@@ -572,6 +125,7 @@ struct nvme_iod {
572 int offset; /* Of PRP list */ 125 int offset; /* Of PRP list */
573 int nents; /* Used in scatterlist */ 126 int nents; /* Used in scatterlist */
574 int length; /* Of data, in bytes */ 127 int length; /* Of data, in bytes */
128 unsigned long start_time;
575 dma_addr_t first_dma; 129 dma_addr_t first_dma;
576 struct scatterlist sg[0]; 130 struct scatterlist sg[0];
577}; 131};
@@ -613,6 +167,4 @@ struct sg_io_hdr;
613int nvme_sg_io(struct nvme_ns *ns, struct sg_io_hdr __user *u_hdr); 167int nvme_sg_io(struct nvme_ns *ns, struct sg_io_hdr __user *u_hdr);
614int nvme_sg_get_version_num(int __user *ip); 168int nvme_sg_get_version_num(int __user *ip);
615 169
616#endif
617
618#endif /* _LINUX_NVME_H */ 170#endif /* _LINUX_NVME_H */
diff --git a/include/uapi/linux/Kbuild b/include/uapi/linux/Kbuild
index e7c94eeb9475..115add2515aa 100644
--- a/include/uapi/linux/Kbuild
+++ b/include/uapi/linux/Kbuild
@@ -284,6 +284,7 @@ header-y += nfs_mount.h
284header-y += nfsacl.h 284header-y += nfsacl.h
285header-y += nl80211.h 285header-y += nl80211.h
286header-y += nubus.h 286header-y += nubus.h
287header-y += nvme.h
287header-y += nvram.h 288header-y += nvram.h
288header-y += omap3isp.h 289header-y += omap3isp.h
289header-y += omapfb.h 290header-y += omapfb.h
diff --git a/include/uapi/linux/nvme.h b/include/uapi/linux/nvme.h
new file mode 100644
index 000000000000..989c04e0c563
--- /dev/null
+++ b/include/uapi/linux/nvme.h
@@ -0,0 +1,477 @@
1/*
2 * Definitions for the NVM Express interface
3 * Copyright (c) 2011-2013, Intel Corporation.
4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms and conditions of the GNU General Public License,
7 * version 2, as published by the Free Software Foundation.
8 *
9 * This program is distributed in the hope it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
12 * more details.
13 *
14 * You should have received a copy of the GNU General Public License along with
15 * this program; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
17 */
18
19#ifndef _UAPI_LINUX_NVME_H
20#define _UAPI_LINUX_NVME_H
21
22#include <linux/types.h>
23
24struct nvme_id_power_state {
25 __le16 max_power; /* centiwatts */
26 __u8 rsvd2;
27 __u8 flags;
28 __le32 entry_lat; /* microseconds */
29 __le32 exit_lat; /* microseconds */
30 __u8 read_tput;
31 __u8 read_lat;
32 __u8 write_tput;
33 __u8 write_lat;
34 __u8 rsvd16[16];
35};
36
37enum {
38 NVME_PS_FLAGS_MAX_POWER_SCALE = 1 << 0,
39 NVME_PS_FLAGS_NON_OP_STATE = 1 << 1,
40};
41
42struct nvme_id_ctrl {
43 __le16 vid;
44 __le16 ssvid;
45 char sn[20];
46 char mn[40];
47 char fr[8];
48 __u8 rab;
49 __u8 ieee[3];
50 __u8 mic;
51 __u8 mdts;
52 __u8 rsvd78[178];
53 __le16 oacs;
54 __u8 acl;
55 __u8 aerl;
56 __u8 frmw;
57 __u8 lpa;
58 __u8 elpe;
59 __u8 npss;
60 __u8 rsvd264[248];
61 __u8 sqes;
62 __u8 cqes;
63 __u8 rsvd514[2];
64 __le32 nn;
65 __le16 oncs;
66 __le16 fuses;
67 __u8 fna;
68 __u8 vwc;
69 __le16 awun;
70 __le16 awupf;
71 __u8 rsvd530[1518];
72 struct nvme_id_power_state psd[32];
73 __u8 vs[1024];
74};
75
76enum {
77 NVME_CTRL_ONCS_COMPARE = 1 << 0,
78 NVME_CTRL_ONCS_WRITE_UNCORRECTABLE = 1 << 1,
79 NVME_CTRL_ONCS_DSM = 1 << 2,
80};
81
82struct nvme_lbaf {
83 __le16 ms;
84 __u8 ds;
85 __u8 rp;
86};
87
88struct nvme_id_ns {
89 __le64 nsze;
90 __le64 ncap;
91 __le64 nuse;
92 __u8 nsfeat;
93 __u8 nlbaf;
94 __u8 flbas;
95 __u8 mc;
96 __u8 dpc;
97 __u8 dps;
98 __u8 rsvd30[98];
99 struct nvme_lbaf lbaf[16];
100 __u8 rsvd192[192];
101 __u8 vs[3712];
102};
103
104enum {
105 NVME_NS_FEAT_THIN = 1 << 0,
106 NVME_LBAF_RP_BEST = 0,
107 NVME_LBAF_RP_BETTER = 1,
108 NVME_LBAF_RP_GOOD = 2,
109 NVME_LBAF_RP_DEGRADED = 3,
110};
111
112struct nvme_smart_log {
113 __u8 critical_warning;
114 __u8 temperature[2];
115 __u8 avail_spare;
116 __u8 spare_thresh;
117 __u8 percent_used;
118 __u8 rsvd6[26];
119 __u8 data_units_read[16];
120 __u8 data_units_written[16];
121 __u8 host_reads[16];
122 __u8 host_writes[16];
123 __u8 ctrl_busy_time[16];
124 __u8 power_cycles[16];
125 __u8 power_on_hours[16];
126 __u8 unsafe_shutdowns[16];
127 __u8 media_errors[16];
128 __u8 num_err_log_entries[16];
129 __u8 rsvd192[320];
130};
131
132enum {
133 NVME_SMART_CRIT_SPARE = 1 << 0,
134 NVME_SMART_CRIT_TEMPERATURE = 1 << 1,
135 NVME_SMART_CRIT_RELIABILITY = 1 << 2,
136 NVME_SMART_CRIT_MEDIA = 1 << 3,
137 NVME_SMART_CRIT_VOLATILE_MEMORY = 1 << 4,
138};
139
140struct nvme_lba_range_type {
141 __u8 type;
142 __u8 attributes;
143 __u8 rsvd2[14];
144 __u64 slba;
145 __u64 nlb;
146 __u8 guid[16];
147 __u8 rsvd48[16];
148};
149
150enum {
151 NVME_LBART_TYPE_FS = 0x01,
152 NVME_LBART_TYPE_RAID = 0x02,
153 NVME_LBART_TYPE_CACHE = 0x03,
154 NVME_LBART_TYPE_SWAP = 0x04,
155
156 NVME_LBART_ATTRIB_TEMP = 1 << 0,
157 NVME_LBART_ATTRIB_HIDE = 1 << 1,
158};
159
160/* I/O commands */
161
162enum nvme_opcode {
163 nvme_cmd_flush = 0x00,
164 nvme_cmd_write = 0x01,
165 nvme_cmd_read = 0x02,
166 nvme_cmd_write_uncor = 0x04,
167 nvme_cmd_compare = 0x05,
168 nvme_cmd_dsm = 0x09,
169};
170
171struct nvme_common_command {
172 __u8 opcode;
173 __u8 flags;
174 __u16 command_id;
175 __le32 nsid;
176 __le32 cdw2[2];
177 __le64 metadata;
178 __le64 prp1;
179 __le64 prp2;
180 __le32 cdw10[6];
181};
182
183struct nvme_rw_command {
184 __u8 opcode;
185 __u8 flags;
186 __u16 command_id;
187 __le32 nsid;
188 __u64 rsvd2;
189 __le64 metadata;
190 __le64 prp1;
191 __le64 prp2;
192 __le64 slba;
193 __le16 length;
194 __le16 control;
195 __le32 dsmgmt;
196 __le32 reftag;
197 __le16 apptag;
198 __le16 appmask;
199};
200
201enum {
202 NVME_RW_LR = 1 << 15,
203 NVME_RW_FUA = 1 << 14,
204 NVME_RW_DSM_FREQ_UNSPEC = 0,
205 NVME_RW_DSM_FREQ_TYPICAL = 1,
206 NVME_RW_DSM_FREQ_RARE = 2,
207 NVME_RW_DSM_FREQ_READS = 3,
208 NVME_RW_DSM_FREQ_WRITES = 4,
209 NVME_RW_DSM_FREQ_RW = 5,
210 NVME_RW_DSM_FREQ_ONCE = 6,
211 NVME_RW_DSM_FREQ_PREFETCH = 7,
212 NVME_RW_DSM_FREQ_TEMP = 8,
213 NVME_RW_DSM_LATENCY_NONE = 0 << 4,
214 NVME_RW_DSM_LATENCY_IDLE = 1 << 4,
215 NVME_RW_DSM_LATENCY_NORM = 2 << 4,
216 NVME_RW_DSM_LATENCY_LOW = 3 << 4,
217 NVME_RW_DSM_SEQ_REQ = 1 << 6,
218 NVME_RW_DSM_COMPRESSED = 1 << 7,
219};
220
221struct nvme_dsm_cmd {
222 __u8 opcode;
223 __u8 flags;
224 __u16 command_id;
225 __le32 nsid;
226 __u64 rsvd2[2];
227 __le64 prp1;
228 __le64 prp2;
229 __le32 nr;
230 __le32 attributes;
231 __u32 rsvd12[4];
232};
233
234enum {
235 NVME_DSMGMT_IDR = 1 << 0,
236 NVME_DSMGMT_IDW = 1 << 1,
237 NVME_DSMGMT_AD = 1 << 2,
238};
239
240struct nvme_dsm_range {
241 __le32 cattr;
242 __le32 nlb;
243 __le64 slba;
244};
245
246/* Admin commands */
247
248enum nvme_admin_opcode {
249 nvme_admin_delete_sq = 0x00,
250 nvme_admin_create_sq = 0x01,
251 nvme_admin_get_log_page = 0x02,
252 nvme_admin_delete_cq = 0x04,
253 nvme_admin_create_cq = 0x05,
254 nvme_admin_identify = 0x06,
255 nvme_admin_abort_cmd = 0x08,
256 nvme_admin_set_features = 0x09,
257 nvme_admin_get_features = 0x0a,
258 nvme_admin_async_event = 0x0c,
259 nvme_admin_activate_fw = 0x10,
260 nvme_admin_download_fw = 0x11,
261 nvme_admin_format_nvm = 0x80,
262 nvme_admin_security_send = 0x81,
263 nvme_admin_security_recv = 0x82,
264};
265
266enum {
267 NVME_QUEUE_PHYS_CONTIG = (1 << 0),
268 NVME_CQ_IRQ_ENABLED = (1 << 1),
269 NVME_SQ_PRIO_URGENT = (0 << 1),
270 NVME_SQ_PRIO_HIGH = (1 << 1),
271 NVME_SQ_PRIO_MEDIUM = (2 << 1),
272 NVME_SQ_PRIO_LOW = (3 << 1),
273 NVME_FEAT_ARBITRATION = 0x01,
274 NVME_FEAT_POWER_MGMT = 0x02,
275 NVME_FEAT_LBA_RANGE = 0x03,
276 NVME_FEAT_TEMP_THRESH = 0x04,
277 NVME_FEAT_ERR_RECOVERY = 0x05,
278 NVME_FEAT_VOLATILE_WC = 0x06,
279 NVME_FEAT_NUM_QUEUES = 0x07,
280 NVME_FEAT_IRQ_COALESCE = 0x08,
281 NVME_FEAT_IRQ_CONFIG = 0x09,
282 NVME_FEAT_WRITE_ATOMIC = 0x0a,
283 NVME_FEAT_ASYNC_EVENT = 0x0b,
284 NVME_FEAT_SW_PROGRESS = 0x0c,
285 NVME_FWACT_REPL = (0 << 3),
286 NVME_FWACT_REPL_ACTV = (1 << 3),
287 NVME_FWACT_ACTV = (2 << 3),
288};
289
290struct nvme_identify {
291 __u8 opcode;
292 __u8 flags;
293 __u16 command_id;
294 __le32 nsid;
295 __u64 rsvd2[2];
296 __le64 prp1;
297 __le64 prp2;
298 __le32 cns;
299 __u32 rsvd11[5];
300};
301
302struct nvme_features {
303 __u8 opcode;
304 __u8 flags;
305 __u16 command_id;
306 __le32 nsid;
307 __u64 rsvd2[2];
308 __le64 prp1;
309 __le64 prp2;
310 __le32 fid;
311 __le32 dword11;
312 __u32 rsvd12[4];
313};
314
315struct nvme_create_cq {
316 __u8 opcode;
317 __u8 flags;
318 __u16 command_id;
319 __u32 rsvd1[5];
320 __le64 prp1;
321 __u64 rsvd8;
322 __le16 cqid;
323 __le16 qsize;
324 __le16 cq_flags;
325 __le16 irq_vector;
326 __u32 rsvd12[4];
327};
328
329struct nvme_create_sq {
330 __u8 opcode;
331 __u8 flags;
332 __u16 command_id;
333 __u32 rsvd1[5];
334 __le64 prp1;
335 __u64 rsvd8;
336 __le16 sqid;
337 __le16 qsize;
338 __le16 sq_flags;
339 __le16 cqid;
340 __u32 rsvd12[4];
341};
342
343struct nvme_delete_queue {
344 __u8 opcode;
345 __u8 flags;
346 __u16 command_id;
347 __u32 rsvd1[9];
348 __le16 qid;
349 __u16 rsvd10;
350 __u32 rsvd11[5];
351};
352
353struct nvme_download_firmware {
354 __u8 opcode;
355 __u8 flags;
356 __u16 command_id;
357 __u32 rsvd1[5];
358 __le64 prp1;
359 __le64 prp2;
360 __le32 numd;
361 __le32 offset;
362 __u32 rsvd12[4];
363};
364
365struct nvme_format_cmd {
366 __u8 opcode;
367 __u8 flags;
368 __u16 command_id;
369 __le32 nsid;
370 __u64 rsvd2[4];
371 __le32 cdw10;
372 __u32 rsvd11[5];
373};
374
375struct nvme_command {
376 union {
377 struct nvme_common_command common;
378 struct nvme_rw_command rw;
379 struct nvme_identify identify;
380 struct nvme_features features;
381 struct nvme_create_cq create_cq;
382 struct nvme_create_sq create_sq;
383 struct nvme_delete_queue delete_queue;
384 struct nvme_download_firmware dlfw;
385 struct nvme_format_cmd format;
386 struct nvme_dsm_cmd dsm;
387 };
388};
389
390enum {
391 NVME_SC_SUCCESS = 0x0,
392 NVME_SC_INVALID_OPCODE = 0x1,
393 NVME_SC_INVALID_FIELD = 0x2,
394 NVME_SC_CMDID_CONFLICT = 0x3,
395 NVME_SC_DATA_XFER_ERROR = 0x4,
396 NVME_SC_POWER_LOSS = 0x5,
397 NVME_SC_INTERNAL = 0x6,
398 NVME_SC_ABORT_REQ = 0x7,
399 NVME_SC_ABORT_QUEUE = 0x8,
400 NVME_SC_FUSED_FAIL = 0x9,
401 NVME_SC_FUSED_MISSING = 0xa,
402 NVME_SC_INVALID_NS = 0xb,
403 NVME_SC_CMD_SEQ_ERROR = 0xc,
404 NVME_SC_LBA_RANGE = 0x80,
405 NVME_SC_CAP_EXCEEDED = 0x81,
406 NVME_SC_NS_NOT_READY = 0x82,
407 NVME_SC_CQ_INVALID = 0x100,
408 NVME_SC_QID_INVALID = 0x101,
409 NVME_SC_QUEUE_SIZE = 0x102,
410 NVME_SC_ABORT_LIMIT = 0x103,
411 NVME_SC_ABORT_MISSING = 0x104,
412 NVME_SC_ASYNC_LIMIT = 0x105,
413 NVME_SC_FIRMWARE_SLOT = 0x106,
414 NVME_SC_FIRMWARE_IMAGE = 0x107,
415 NVME_SC_INVALID_VECTOR = 0x108,
416 NVME_SC_INVALID_LOG_PAGE = 0x109,
417 NVME_SC_INVALID_FORMAT = 0x10a,
418 NVME_SC_BAD_ATTRIBUTES = 0x180,
419 NVME_SC_WRITE_FAULT = 0x280,
420 NVME_SC_READ_ERROR = 0x281,
421 NVME_SC_GUARD_CHECK = 0x282,
422 NVME_SC_APPTAG_CHECK = 0x283,
423 NVME_SC_REFTAG_CHECK = 0x284,
424 NVME_SC_COMPARE_FAILED = 0x285,
425 NVME_SC_ACCESS_DENIED = 0x286,
426};
427
428struct nvme_completion {
429 __le32 result; /* Used by admin commands to return data */
430 __u32 rsvd;
431 __le16 sq_head; /* how much of this queue may be reclaimed */
432 __le16 sq_id; /* submission queue that generated this entry */
433 __u16 command_id; /* of the command which completed */
434 __le16 status; /* did the command fail, and if so, why? */
435};
436
437struct nvme_user_io {
438 __u8 opcode;
439 __u8 flags;
440 __u16 control;
441 __u16 nblocks;
442 __u16 rsvd;
443 __u64 metadata;
444 __u64 addr;
445 __u64 slba;
446 __u32 dsmgmt;
447 __u32 reftag;
448 __u16 apptag;
449 __u16 appmask;
450};
451
452struct nvme_admin_cmd {
453 __u8 opcode;
454 __u8 flags;
455 __u16 rsvd1;
456 __u32 nsid;
457 __u32 cdw2;
458 __u32 cdw3;
459 __u64 metadata;
460 __u64 addr;
461 __u32 metadata_len;
462 __u32 data_len;
463 __u32 cdw10;
464 __u32 cdw11;
465 __u32 cdw12;
466 __u32 cdw13;
467 __u32 cdw14;
468 __u32 cdw15;
469 __u32 timeout_ms;
470 __u32 result;
471};
472
473#define NVME_IOCTL_ID _IO('N', 0x40)
474#define NVME_IOCTL_ADMIN_CMD _IOWR('N', 0x41, struct nvme_admin_cmd)
475#define NVME_IOCTL_SUBMIT_IO _IOW('N', 0x42, struct nvme_user_io)
476
477#endif /* _UAPI_LINUX_NVME_H */
generated by cgit v1.2.2 (git 2.25.0) at 2026-03-12 04:18:56 -0400