2 * NVM Express device driver
3 * Copyright (c) 2011-2014, Intel Corporation.
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.
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
16 * Refer to the SCSI-NVMe Translation spec for details on how
17 * each command is translated.
20 #include <linux/nvme.h>
21 #include <linux/bio.h>
22 #include <linux/bitops.h>
23 #include <linux/blkdev.h>
24 #include <linux/compat.h>
25 #include <linux/delay.h>
26 #include <linux/errno.h>
28 #include <linux/genhd.h>
29 #include <linux/idr.h>
30 #include <linux/init.h>
31 #include <linux/interrupt.h>
33 #include <linux/kdev_t.h>
34 #include <linux/kthread.h>
35 #include <linux/kernel.h>
37 #include <linux/module.h>
38 #include <linux/moduleparam.h>
39 #include <linux/pci.h>
40 #include <linux/poison.h>
41 #include <linux/sched.h>
42 #include <linux/slab.h>
43 #include <linux/types.h>
45 #include <scsi/scsi.h>
48 static int sg_version_num
= 30534; /* 2 digits for each component */
50 #define SNTI_TRANSLATION_SUCCESS 0
51 #define SNTI_INTERNAL_ERROR 1
54 #define VPD_SUPPORTED_PAGES 0x00
55 #define VPD_SERIAL_NUMBER 0x80
56 #define VPD_DEVICE_IDENTIFIERS 0x83
57 #define VPD_EXTENDED_INQUIRY 0x86
58 #define VPD_BLOCK_LIMITS 0xB0
59 #define VPD_BLOCK_DEV_CHARACTERISTICS 0xB1
62 #define REPORT_LUNS_CDB_ALLOC_LENGTH_OFFSET 6
63 #define REPORT_LUNS_SR_OFFSET 2
64 #define READ_CAP_16_CDB_ALLOC_LENGTH_OFFSET 10
65 #define REQUEST_SENSE_CDB_ALLOC_LENGTH_OFFSET 4
66 #define REQUEST_SENSE_DESC_OFFSET 1
67 #define REQUEST_SENSE_DESC_MASK 0x01
68 #define DESCRIPTOR_FORMAT_SENSE_DATA_TYPE 1
69 #define INQUIRY_EVPD_BYTE_OFFSET 1
70 #define INQUIRY_PAGE_CODE_BYTE_OFFSET 2
71 #define INQUIRY_EVPD_BIT_MASK 1
72 #define INQUIRY_CDB_ALLOCATION_LENGTH_OFFSET 3
73 #define START_STOP_UNIT_CDB_IMMED_OFFSET 1
74 #define START_STOP_UNIT_CDB_IMMED_MASK 0x1
75 #define START_STOP_UNIT_CDB_POWER_COND_MOD_OFFSET 3
76 #define START_STOP_UNIT_CDB_POWER_COND_MOD_MASK 0xF
77 #define START_STOP_UNIT_CDB_POWER_COND_OFFSET 4
78 #define START_STOP_UNIT_CDB_POWER_COND_MASK 0xF0
79 #define START_STOP_UNIT_CDB_NO_FLUSH_OFFSET 4
80 #define START_STOP_UNIT_CDB_NO_FLUSH_MASK 0x4
81 #define START_STOP_UNIT_CDB_START_OFFSET 4
82 #define START_STOP_UNIT_CDB_START_MASK 0x1
83 #define WRITE_BUFFER_CDB_MODE_OFFSET 1
84 #define WRITE_BUFFER_CDB_MODE_MASK 0x1F
85 #define WRITE_BUFFER_CDB_BUFFER_ID_OFFSET 2
86 #define WRITE_BUFFER_CDB_BUFFER_OFFSET_OFFSET 3
87 #define WRITE_BUFFER_CDB_PARM_LIST_LENGTH_OFFSET 6
88 #define FORMAT_UNIT_CDB_FORMAT_PROT_INFO_OFFSET 1
89 #define FORMAT_UNIT_CDB_FORMAT_PROT_INFO_MASK 0xC0
90 #define FORMAT_UNIT_CDB_FORMAT_PROT_INFO_SHIFT 6
91 #define FORMAT_UNIT_CDB_LONG_LIST_OFFSET 1
92 #define FORMAT_UNIT_CDB_LONG_LIST_MASK 0x20
93 #define FORMAT_UNIT_CDB_FORMAT_DATA_OFFSET 1
94 #define FORMAT_UNIT_CDB_FORMAT_DATA_MASK 0x10
95 #define FORMAT_UNIT_SHORT_PARM_LIST_LEN 4
96 #define FORMAT_UNIT_LONG_PARM_LIST_LEN 8
97 #define FORMAT_UNIT_PROT_INT_OFFSET 3
98 #define FORMAT_UNIT_PROT_FIELD_USAGE_OFFSET 0
99 #define FORMAT_UNIT_PROT_FIELD_USAGE_MASK 0x07
100 #define UNMAP_CDB_PARAM_LIST_LENGTH_OFFSET 7
103 #define NIBBLE_SHIFT 4
104 #define FIXED_SENSE_DATA 0x70
105 #define DESC_FORMAT_SENSE_DATA 0x72
106 #define FIXED_SENSE_DATA_ADD_LENGTH 10
107 #define LUN_ENTRY_SIZE 8
108 #define LUN_DATA_HEADER_SIZE 8
109 #define ALL_LUNS_RETURNED 0x02
110 #define ALL_WELL_KNOWN_LUNS_RETURNED 0x01
111 #define RESTRICTED_LUNS_RETURNED 0x00
112 #define NVME_POWER_STATE_START_VALID 0x00
113 #define NVME_POWER_STATE_ACTIVE 0x01
114 #define NVME_POWER_STATE_IDLE 0x02
115 #define NVME_POWER_STATE_STANDBY 0x03
116 #define NVME_POWER_STATE_LU_CONTROL 0x07
117 #define POWER_STATE_0 0
118 #define POWER_STATE_1 1
119 #define POWER_STATE_2 2
120 #define POWER_STATE_3 3
121 #define DOWNLOAD_SAVE_ACTIVATE 0x05
122 #define DOWNLOAD_SAVE_DEFER_ACTIVATE 0x0E
123 #define ACTIVATE_DEFERRED_MICROCODE 0x0F
124 #define FORMAT_UNIT_IMMED_MASK 0x2
125 #define FORMAT_UNIT_IMMED_OFFSET 1
126 #define KELVIN_TEMP_FACTOR 273
127 #define FIXED_FMT_SENSE_DATA_SIZE 18
128 #define DESC_FMT_SENSE_DATA_SIZE 8
130 /* SCSI/NVMe defines and bit masks */
131 #define INQ_STANDARD_INQUIRY_PAGE 0x00
132 #define INQ_SUPPORTED_VPD_PAGES_PAGE 0x00
133 #define INQ_UNIT_SERIAL_NUMBER_PAGE 0x80
134 #define INQ_DEVICE_IDENTIFICATION_PAGE 0x83
135 #define INQ_EXTENDED_INQUIRY_DATA_PAGE 0x86
136 #define INQ_BDEV_LIMITS_PAGE 0xB0
137 #define INQ_BDEV_CHARACTERISTICS_PAGE 0xB1
138 #define INQ_SERIAL_NUMBER_LENGTH 0x14
139 #define INQ_NUM_SUPPORTED_VPD_PAGES 6
140 #define VERSION_SPC_4 0x06
141 #define ACA_UNSUPPORTED 0
142 #define STANDARD_INQUIRY_LENGTH 36
143 #define ADDITIONAL_STD_INQ_LENGTH 31
144 #define EXTENDED_INQUIRY_DATA_PAGE_LENGTH 0x3C
145 #define RESERVED_FIELD 0
147 /* SCSI READ/WRITE Defines */
148 #define IO_CDB_WP_MASK 0xE0
149 #define IO_CDB_WP_SHIFT 5
150 #define IO_CDB_FUA_MASK 0x8
151 #define IO_6_CDB_LBA_OFFSET 0
152 #define IO_6_CDB_LBA_MASK 0x001FFFFF
153 #define IO_6_CDB_TX_LEN_OFFSET 4
154 #define IO_6_DEFAULT_TX_LEN 256
155 #define IO_10_CDB_LBA_OFFSET 2
156 #define IO_10_CDB_TX_LEN_OFFSET 7
157 #define IO_10_CDB_WP_OFFSET 1
158 #define IO_10_CDB_FUA_OFFSET 1
159 #define IO_12_CDB_LBA_OFFSET 2
160 #define IO_12_CDB_TX_LEN_OFFSET 6
161 #define IO_12_CDB_WP_OFFSET 1
162 #define IO_12_CDB_FUA_OFFSET 1
163 #define IO_16_CDB_FUA_OFFSET 1
164 #define IO_16_CDB_WP_OFFSET 1
165 #define IO_16_CDB_LBA_OFFSET 2
166 #define IO_16_CDB_TX_LEN_OFFSET 10
168 /* Mode Sense/Select defines */
169 #define MODE_PAGE_INFO_EXCEP 0x1C
170 #define MODE_PAGE_CACHING 0x08
171 #define MODE_PAGE_CONTROL 0x0A
172 #define MODE_PAGE_POWER_CONDITION 0x1A
173 #define MODE_PAGE_RETURN_ALL 0x3F
174 #define MODE_PAGE_BLK_DES_LEN 0x08
175 #define MODE_PAGE_LLBAA_BLK_DES_LEN 0x10
176 #define MODE_PAGE_CACHING_LEN 0x14
177 #define MODE_PAGE_CONTROL_LEN 0x0C
178 #define MODE_PAGE_POW_CND_LEN 0x28
179 #define MODE_PAGE_INF_EXC_LEN 0x0C
180 #define MODE_PAGE_ALL_LEN 0x54
181 #define MODE_SENSE6_MPH_SIZE 4
182 #define MODE_SENSE6_ALLOC_LEN_OFFSET 4
183 #define MODE_SENSE_PAGE_CONTROL_OFFSET 2
184 #define MODE_SENSE_PAGE_CONTROL_MASK 0xC0
185 #define MODE_SENSE_PAGE_CODE_OFFSET 2
186 #define MODE_SENSE_PAGE_CODE_MASK 0x3F
187 #define MODE_SENSE_LLBAA_OFFSET 1
188 #define MODE_SENSE_LLBAA_MASK 0x10
189 #define MODE_SENSE_LLBAA_SHIFT 4
190 #define MODE_SENSE_DBD_OFFSET 1
191 #define MODE_SENSE_DBD_MASK 8
192 #define MODE_SENSE_DBD_SHIFT 3
193 #define MODE_SENSE10_MPH_SIZE 8
194 #define MODE_SENSE10_ALLOC_LEN_OFFSET 7
195 #define MODE_SELECT_CDB_PAGE_FORMAT_OFFSET 1
196 #define MODE_SELECT_CDB_SAVE_PAGES_OFFSET 1
197 #define MODE_SELECT_6_CDB_PARAM_LIST_LENGTH_OFFSET 4
198 #define MODE_SELECT_10_CDB_PARAM_LIST_LENGTH_OFFSET 7
199 #define MODE_SELECT_CDB_PAGE_FORMAT_MASK 0x10
200 #define MODE_SELECT_CDB_SAVE_PAGES_MASK 0x1
201 #define MODE_SELECT_6_BD_OFFSET 3
202 #define MODE_SELECT_10_BD_OFFSET 6
203 #define MODE_SELECT_10_LLBAA_OFFSET 4
204 #define MODE_SELECT_10_LLBAA_MASK 1
205 #define MODE_SELECT_6_MPH_SIZE 4
206 #define MODE_SELECT_10_MPH_SIZE 8
207 #define CACHING_MODE_PAGE_WCE_MASK 0x04
208 #define MODE_SENSE_BLK_DESC_ENABLED 0
209 #define MODE_SENSE_BLK_DESC_COUNT 1
210 #define MODE_SELECT_PAGE_CODE_MASK 0x3F
211 #define SHORT_DESC_BLOCK 8
212 #define LONG_DESC_BLOCK 16
213 #define MODE_PAGE_POW_CND_LEN_FIELD 0x26
214 #define MODE_PAGE_INF_EXC_LEN_FIELD 0x0A
215 #define MODE_PAGE_CACHING_LEN_FIELD 0x12
216 #define MODE_PAGE_CONTROL_LEN_FIELD 0x0A
217 #define MODE_SENSE_PC_CURRENT_VALUES 0
219 /* Log Sense defines */
220 #define LOG_PAGE_SUPPORTED_LOG_PAGES_PAGE 0x00
221 #define LOG_PAGE_SUPPORTED_LOG_PAGES_LENGTH 0x07
222 #define LOG_PAGE_INFORMATIONAL_EXCEPTIONS_PAGE 0x2F
223 #define LOG_PAGE_TEMPERATURE_PAGE 0x0D
224 #define LOG_SENSE_CDB_SP_OFFSET 1
225 #define LOG_SENSE_CDB_SP_NOT_ENABLED 0
226 #define LOG_SENSE_CDB_PC_OFFSET 2
227 #define LOG_SENSE_CDB_PC_MASK 0xC0
228 #define LOG_SENSE_CDB_PC_SHIFT 6
229 #define LOG_SENSE_CDB_PC_CUMULATIVE_VALUES 1
230 #define LOG_SENSE_CDB_PAGE_CODE_MASK 0x3F
231 #define LOG_SENSE_CDB_ALLOC_LENGTH_OFFSET 7
232 #define REMAINING_INFO_EXCP_PAGE_LENGTH 0x8
233 #define LOG_INFO_EXCP_PAGE_LENGTH 0xC
234 #define REMAINING_TEMP_PAGE_LENGTH 0xC
235 #define LOG_TEMP_PAGE_LENGTH 0x10
236 #define LOG_TEMP_UNKNOWN 0xFF
237 #define SUPPORTED_LOG_PAGES_PAGE_LENGTH 0x3
239 /* Read Capacity defines */
240 #define READ_CAP_10_RESP_SIZE 8
241 #define READ_CAP_16_RESP_SIZE 32
243 /* NVMe Namespace and Command Defines */
244 #define BYTES_TO_DWORDS 4
245 #define NVME_MAX_FIRMWARE_SLOT 7
247 /* Report LUNs defines */
248 #define REPORT_LUNS_FIRST_LUN_OFFSET 8
250 /* SCSI ADDITIONAL SENSE Codes */
252 #define SCSI_ASC_NO_SENSE 0x00
253 #define SCSI_ASC_PERIPHERAL_DEV_WRITE_FAULT 0x03
254 #define SCSI_ASC_LUN_NOT_READY 0x04
255 #define SCSI_ASC_WARNING 0x0B
256 #define SCSI_ASC_LOG_BLOCK_GUARD_CHECK_FAILED 0x10
257 #define SCSI_ASC_LOG_BLOCK_APPTAG_CHECK_FAILED 0x10
258 #define SCSI_ASC_LOG_BLOCK_REFTAG_CHECK_FAILED 0x10
259 #define SCSI_ASC_UNRECOVERED_READ_ERROR 0x11
260 #define SCSI_ASC_MISCOMPARE_DURING_VERIFY 0x1D
261 #define SCSI_ASC_ACCESS_DENIED_INVALID_LUN_ID 0x20
262 #define SCSI_ASC_ILLEGAL_COMMAND 0x20
263 #define SCSI_ASC_ILLEGAL_BLOCK 0x21
264 #define SCSI_ASC_INVALID_CDB 0x24
265 #define SCSI_ASC_INVALID_LUN 0x25
266 #define SCSI_ASC_INVALID_PARAMETER 0x26
267 #define SCSI_ASC_FORMAT_COMMAND_FAILED 0x31
268 #define SCSI_ASC_INTERNAL_TARGET_FAILURE 0x44
270 /* SCSI ADDITIONAL SENSE Code Qualifiers */
272 #define SCSI_ASCQ_CAUSE_NOT_REPORTABLE 0x00
273 #define SCSI_ASCQ_FORMAT_COMMAND_FAILED 0x01
274 #define SCSI_ASCQ_LOG_BLOCK_GUARD_CHECK_FAILED 0x01
275 #define SCSI_ASCQ_LOG_BLOCK_APPTAG_CHECK_FAILED 0x02
276 #define SCSI_ASCQ_LOG_BLOCK_REFTAG_CHECK_FAILED 0x03
277 #define SCSI_ASCQ_FORMAT_IN_PROGRESS 0x04
278 #define SCSI_ASCQ_POWER_LOSS_EXPECTED 0x08
279 #define SCSI_ASCQ_INVALID_LUN_ID 0x09
282 * DEVICE_SPECIFIC_PARAMETER in mode parameter header (see sbc2r16) to
283 * enable DPOFUA support type 0x10 value.
285 #define DEVICE_SPECIFIC_PARAMETER 0
286 #define VPD_ID_DESCRIPTOR_LENGTH sizeof(VPD_IDENTIFICATION_DESCRIPTOR)
288 /* MACROs to extract information from CDBs */
290 #define GET_OPCODE(cdb) cdb[0]
292 #define GET_U8_FROM_CDB(cdb, index) (cdb[index] << 0)
294 #define GET_U16_FROM_CDB(cdb, index) ((cdb[index] << 8) | (cdb[index + 1] << 0))
296 #define GET_U24_FROM_CDB(cdb, index) ((cdb[index] << 16) | \
297 (cdb[index + 1] << 8) | \
298 (cdb[index + 2] << 0))
300 #define GET_U32_FROM_CDB(cdb, index) ((cdb[index] << 24) | \
301 (cdb[index + 1] << 16) | \
302 (cdb[index + 2] << 8) | \
303 (cdb[index + 3] << 0))
305 #define GET_U64_FROM_CDB(cdb, index) ((((u64)cdb[index]) << 56) | \
306 (((u64)cdb[index + 1]) << 48) | \
307 (((u64)cdb[index + 2]) << 40) | \
308 (((u64)cdb[index + 3]) << 32) | \
309 (((u64)cdb[index + 4]) << 24) | \
310 (((u64)cdb[index + 5]) << 16) | \
311 (((u64)cdb[index + 6]) << 8) | \
312 (((u64)cdb[index + 7]) << 0))
314 /* Inquiry Helper Macros */
315 #define GET_INQ_EVPD_BIT(cdb) \
316 ((GET_U8_FROM_CDB(cdb, INQUIRY_EVPD_BYTE_OFFSET) & \
317 INQUIRY_EVPD_BIT_MASK) ? 1 : 0)
319 #define GET_INQ_PAGE_CODE(cdb) \
320 (GET_U8_FROM_CDB(cdb, INQUIRY_PAGE_CODE_BYTE_OFFSET))
322 #define GET_INQ_ALLOC_LENGTH(cdb) \
323 (GET_U16_FROM_CDB(cdb, INQUIRY_CDB_ALLOCATION_LENGTH_OFFSET))
325 /* Report LUNs Helper Macros */
326 #define GET_REPORT_LUNS_ALLOC_LENGTH(cdb) \
327 (GET_U32_FROM_CDB(cdb, REPORT_LUNS_CDB_ALLOC_LENGTH_OFFSET))
329 /* Read Capacity Helper Macros */
330 #define GET_READ_CAP_16_ALLOC_LENGTH(cdb) \
331 (GET_U32_FROM_CDB(cdb, READ_CAP_16_CDB_ALLOC_LENGTH_OFFSET))
333 #define IS_READ_CAP_16(cdb) \
334 ((cdb[0] == SERVICE_ACTION_IN_16 && cdb[1] == SAI_READ_CAPACITY_16) ? 1 : 0)
336 /* Request Sense Helper Macros */
337 #define GET_REQUEST_SENSE_ALLOC_LENGTH(cdb) \
338 (GET_U8_FROM_CDB(cdb, REQUEST_SENSE_CDB_ALLOC_LENGTH_OFFSET))
340 /* Mode Sense Helper Macros */
341 #define GET_MODE_SENSE_DBD(cdb) \
342 ((GET_U8_FROM_CDB(cdb, MODE_SENSE_DBD_OFFSET) & MODE_SENSE_DBD_MASK) >> \
343 MODE_SENSE_DBD_SHIFT)
345 #define GET_MODE_SENSE_LLBAA(cdb) \
346 ((GET_U8_FROM_CDB(cdb, MODE_SENSE_LLBAA_OFFSET) & \
347 MODE_SENSE_LLBAA_MASK) >> MODE_SENSE_LLBAA_SHIFT)
349 #define GET_MODE_SENSE_MPH_SIZE(cdb10) \
350 (cdb10 ? MODE_SENSE10_MPH_SIZE : MODE_SENSE6_MPH_SIZE)
353 /* Struct to gather data that needs to be extracted from a SCSI CDB.
354 Not conforming to any particular CDB variant, but compatible with all. */
356 struct nvme_trans_io_cdb
{
364 /* Internal Helper Functions */
367 /* Copy data to userspace memory */
369 static int nvme_trans_copy_to_user(struct sg_io_hdr
*hdr
, void *from
,
372 int res
= SNTI_TRANSLATION_SUCCESS
;
373 unsigned long not_copied
;
376 size_t remaining
= n
;
379 if (hdr
->iovec_count
> 0) {
382 for (i
= 0; i
< hdr
->iovec_count
; i
++) {
383 not_copied
= copy_from_user(&sgl
, hdr
->dxferp
+
384 i
* sizeof(struct sg_iovec
),
385 sizeof(struct sg_iovec
));
388 xfer_len
= min(remaining
, sgl
.iov_len
);
389 not_copied
= copy_to_user(sgl
.iov_base
, index
,
396 remaining
-= xfer_len
;
402 not_copied
= copy_to_user(hdr
->dxferp
, from
, n
);
408 /* Copy data from userspace memory */
410 static int nvme_trans_copy_from_user(struct sg_io_hdr
*hdr
, void *to
,
413 int res
= SNTI_TRANSLATION_SUCCESS
;
414 unsigned long not_copied
;
417 size_t remaining
= n
;
420 if (hdr
->iovec_count
> 0) {
423 for (i
= 0; i
< hdr
->iovec_count
; i
++) {
424 not_copied
= copy_from_user(&sgl
, hdr
->dxferp
+
425 i
* sizeof(struct sg_iovec
),
426 sizeof(struct sg_iovec
));
429 xfer_len
= min(remaining
, sgl
.iov_len
);
430 not_copied
= copy_from_user(index
, sgl
.iov_base
,
437 remaining
-= xfer_len
;
444 not_copied
= copy_from_user(to
, hdr
->dxferp
, n
);
450 /* Status/Sense Buffer Writeback */
452 static int nvme_trans_completion(struct sg_io_hdr
*hdr
, u8 status
, u8 sense_key
,
455 int res
= SNTI_TRANSLATION_SUCCESS
;
457 u8 resp
[DESC_FMT_SENSE_DATA_SIZE
];
459 if (scsi_status_is_good(status
)) {
460 hdr
->status
= SAM_STAT_GOOD
;
461 hdr
->masked_status
= GOOD
;
462 hdr
->host_status
= DID_OK
;
463 hdr
->driver_status
= DRIVER_OK
;
466 hdr
->status
= status
;
467 hdr
->masked_status
= status
>> 1;
468 hdr
->host_status
= DID_OK
;
469 hdr
->driver_status
= DRIVER_OK
;
471 memset(resp
, 0, DESC_FMT_SENSE_DATA_SIZE
);
472 resp
[0] = DESC_FORMAT_SENSE_DATA
;
477 xfer_len
= min_t(u8
, hdr
->mx_sb_len
, DESC_FMT_SENSE_DATA_SIZE
);
478 hdr
->sb_len_wr
= xfer_len
;
479 if (copy_to_user(hdr
->sbp
, resp
, xfer_len
) > 0)
486 static int nvme_trans_status_code(struct sg_io_hdr
*hdr
, int nvme_sc
)
488 u8 status
, sense_key
, asc
, ascq
;
489 int res
= SNTI_TRANSLATION_SUCCESS
;
491 /* For non-nvme (Linux) errors, simply return the error code */
495 /* Mask DNR, More, and reserved fields */
499 /* Generic Command Status */
500 case NVME_SC_SUCCESS
:
501 status
= SAM_STAT_GOOD
;
502 sense_key
= NO_SENSE
;
503 asc
= SCSI_ASC_NO_SENSE
;
504 ascq
= SCSI_ASCQ_CAUSE_NOT_REPORTABLE
;
506 case NVME_SC_INVALID_OPCODE
:
507 status
= SAM_STAT_CHECK_CONDITION
;
508 sense_key
= ILLEGAL_REQUEST
;
509 asc
= SCSI_ASC_ILLEGAL_COMMAND
;
510 ascq
= SCSI_ASCQ_CAUSE_NOT_REPORTABLE
;
512 case NVME_SC_INVALID_FIELD
:
513 status
= SAM_STAT_CHECK_CONDITION
;
514 sense_key
= ILLEGAL_REQUEST
;
515 asc
= SCSI_ASC_INVALID_CDB
;
516 ascq
= SCSI_ASCQ_CAUSE_NOT_REPORTABLE
;
518 case NVME_SC_DATA_XFER_ERROR
:
519 status
= SAM_STAT_CHECK_CONDITION
;
520 sense_key
= MEDIUM_ERROR
;
521 asc
= SCSI_ASC_NO_SENSE
;
522 ascq
= SCSI_ASCQ_CAUSE_NOT_REPORTABLE
;
524 case NVME_SC_POWER_LOSS
:
525 status
= SAM_STAT_TASK_ABORTED
;
526 sense_key
= ABORTED_COMMAND
;
527 asc
= SCSI_ASC_WARNING
;
528 ascq
= SCSI_ASCQ_POWER_LOSS_EXPECTED
;
530 case NVME_SC_INTERNAL
:
531 status
= SAM_STAT_CHECK_CONDITION
;
532 sense_key
= HARDWARE_ERROR
;
533 asc
= SCSI_ASC_INTERNAL_TARGET_FAILURE
;
534 ascq
= SCSI_ASCQ_CAUSE_NOT_REPORTABLE
;
536 case NVME_SC_ABORT_REQ
:
537 status
= SAM_STAT_TASK_ABORTED
;
538 sense_key
= ABORTED_COMMAND
;
539 asc
= SCSI_ASC_NO_SENSE
;
540 ascq
= SCSI_ASCQ_CAUSE_NOT_REPORTABLE
;
542 case NVME_SC_ABORT_QUEUE
:
543 status
= SAM_STAT_TASK_ABORTED
;
544 sense_key
= ABORTED_COMMAND
;
545 asc
= SCSI_ASC_NO_SENSE
;
546 ascq
= SCSI_ASCQ_CAUSE_NOT_REPORTABLE
;
548 case NVME_SC_FUSED_FAIL
:
549 status
= SAM_STAT_TASK_ABORTED
;
550 sense_key
= ABORTED_COMMAND
;
551 asc
= SCSI_ASC_NO_SENSE
;
552 ascq
= SCSI_ASCQ_CAUSE_NOT_REPORTABLE
;
554 case NVME_SC_FUSED_MISSING
:
555 status
= SAM_STAT_TASK_ABORTED
;
556 sense_key
= ABORTED_COMMAND
;
557 asc
= SCSI_ASC_NO_SENSE
;
558 ascq
= SCSI_ASCQ_CAUSE_NOT_REPORTABLE
;
560 case NVME_SC_INVALID_NS
:
561 status
= SAM_STAT_CHECK_CONDITION
;
562 sense_key
= ILLEGAL_REQUEST
;
563 asc
= SCSI_ASC_ACCESS_DENIED_INVALID_LUN_ID
;
564 ascq
= SCSI_ASCQ_INVALID_LUN_ID
;
566 case NVME_SC_LBA_RANGE
:
567 status
= SAM_STAT_CHECK_CONDITION
;
568 sense_key
= ILLEGAL_REQUEST
;
569 asc
= SCSI_ASC_ILLEGAL_BLOCK
;
570 ascq
= SCSI_ASCQ_CAUSE_NOT_REPORTABLE
;
572 case NVME_SC_CAP_EXCEEDED
:
573 status
= SAM_STAT_CHECK_CONDITION
;
574 sense_key
= MEDIUM_ERROR
;
575 asc
= SCSI_ASC_NO_SENSE
;
576 ascq
= SCSI_ASCQ_CAUSE_NOT_REPORTABLE
;
578 case NVME_SC_NS_NOT_READY
:
579 status
= SAM_STAT_CHECK_CONDITION
;
580 sense_key
= NOT_READY
;
581 asc
= SCSI_ASC_LUN_NOT_READY
;
582 ascq
= SCSI_ASCQ_CAUSE_NOT_REPORTABLE
;
585 /* Command Specific Status */
586 case NVME_SC_INVALID_FORMAT
:
587 status
= SAM_STAT_CHECK_CONDITION
;
588 sense_key
= ILLEGAL_REQUEST
;
589 asc
= SCSI_ASC_FORMAT_COMMAND_FAILED
;
590 ascq
= SCSI_ASCQ_FORMAT_COMMAND_FAILED
;
592 case NVME_SC_BAD_ATTRIBUTES
:
593 status
= SAM_STAT_CHECK_CONDITION
;
594 sense_key
= ILLEGAL_REQUEST
;
595 asc
= SCSI_ASC_INVALID_CDB
;
596 ascq
= SCSI_ASCQ_CAUSE_NOT_REPORTABLE
;
600 case NVME_SC_WRITE_FAULT
:
601 status
= SAM_STAT_CHECK_CONDITION
;
602 sense_key
= MEDIUM_ERROR
;
603 asc
= SCSI_ASC_PERIPHERAL_DEV_WRITE_FAULT
;
604 ascq
= SCSI_ASCQ_CAUSE_NOT_REPORTABLE
;
606 case NVME_SC_READ_ERROR
:
607 status
= SAM_STAT_CHECK_CONDITION
;
608 sense_key
= MEDIUM_ERROR
;
609 asc
= SCSI_ASC_UNRECOVERED_READ_ERROR
;
610 ascq
= SCSI_ASCQ_CAUSE_NOT_REPORTABLE
;
612 case NVME_SC_GUARD_CHECK
:
613 status
= SAM_STAT_CHECK_CONDITION
;
614 sense_key
= MEDIUM_ERROR
;
615 asc
= SCSI_ASC_LOG_BLOCK_GUARD_CHECK_FAILED
;
616 ascq
= SCSI_ASCQ_LOG_BLOCK_GUARD_CHECK_FAILED
;
618 case NVME_SC_APPTAG_CHECK
:
619 status
= SAM_STAT_CHECK_CONDITION
;
620 sense_key
= MEDIUM_ERROR
;
621 asc
= SCSI_ASC_LOG_BLOCK_APPTAG_CHECK_FAILED
;
622 ascq
= SCSI_ASCQ_LOG_BLOCK_APPTAG_CHECK_FAILED
;
624 case NVME_SC_REFTAG_CHECK
:
625 status
= SAM_STAT_CHECK_CONDITION
;
626 sense_key
= MEDIUM_ERROR
;
627 asc
= SCSI_ASC_LOG_BLOCK_REFTAG_CHECK_FAILED
;
628 ascq
= SCSI_ASCQ_LOG_BLOCK_REFTAG_CHECK_FAILED
;
630 case NVME_SC_COMPARE_FAILED
:
631 status
= SAM_STAT_CHECK_CONDITION
;
632 sense_key
= MISCOMPARE
;
633 asc
= SCSI_ASC_MISCOMPARE_DURING_VERIFY
;
634 ascq
= SCSI_ASCQ_CAUSE_NOT_REPORTABLE
;
636 case NVME_SC_ACCESS_DENIED
:
637 status
= SAM_STAT_CHECK_CONDITION
;
638 sense_key
= ILLEGAL_REQUEST
;
639 asc
= SCSI_ASC_ACCESS_DENIED_INVALID_LUN_ID
;
640 ascq
= SCSI_ASCQ_INVALID_LUN_ID
;
643 /* Unspecified/Default */
644 case NVME_SC_CMDID_CONFLICT
:
645 case NVME_SC_CMD_SEQ_ERROR
:
646 case NVME_SC_CQ_INVALID
:
647 case NVME_SC_QID_INVALID
:
648 case NVME_SC_QUEUE_SIZE
:
649 case NVME_SC_ABORT_LIMIT
:
650 case NVME_SC_ABORT_MISSING
:
651 case NVME_SC_ASYNC_LIMIT
:
652 case NVME_SC_FIRMWARE_SLOT
:
653 case NVME_SC_FIRMWARE_IMAGE
:
654 case NVME_SC_INVALID_VECTOR
:
655 case NVME_SC_INVALID_LOG_PAGE
:
657 status
= SAM_STAT_CHECK_CONDITION
;
658 sense_key
= ILLEGAL_REQUEST
;
659 asc
= SCSI_ASC_NO_SENSE
;
660 ascq
= SCSI_ASCQ_CAUSE_NOT_REPORTABLE
;
664 res
= nvme_trans_completion(hdr
, status
, sense_key
, asc
, ascq
);
669 /* INQUIRY Helper Functions */
671 static int nvme_trans_standard_inquiry_page(struct nvme_ns
*ns
,
672 struct sg_io_hdr
*hdr
, u8
*inq_response
,
675 struct nvme_dev
*dev
= ns
->dev
;
678 struct nvme_id_ns
*id_ns
;
679 int res
= SNTI_TRANSLATION_SUCCESS
;
682 u8 resp_data_format
= 0x02;
684 u8 cmdque
= 0x01 << 1;
685 u8 fw_offset
= sizeof(dev
->firmware_rev
);
687 mem
= dma_alloc_coherent(&dev
->pci_dev
->dev
, sizeof(struct nvme_id_ns
),
688 &dma_addr
, GFP_KERNEL
);
694 /* nvme ns identify - use DPS value for PROTECT field */
695 nvme_sc
= nvme_identify(dev
, ns
->ns_id
, 0, dma_addr
);
696 res
= nvme_trans_status_code(hdr
, nvme_sc
);
698 * If nvme_sc was -ve, res will be -ve here.
699 * If nvme_sc was +ve, the status would bace been translated, and res
700 * can only be 0 or -ve.
701 * - If 0 && nvme_sc > 0, then go into next if where res gets nvme_sc
702 * - If -ve, return because its a Linux error.
711 (id_ns
->dps
) ? (protect
= 0x01) : (protect
= 0);
713 memset(inq_response
, 0, STANDARD_INQUIRY_LENGTH
);
714 inq_response
[2] = VERSION_SPC_4
;
715 inq_response
[3] = resp_data_format
; /*normaca=0 | hisup=0 */
716 inq_response
[4] = ADDITIONAL_STD_INQ_LENGTH
;
717 inq_response
[5] = protect
; /* sccs=0 | acc=0 | tpgs=0 | pc3=0 */
718 inq_response
[7] = cmdque
; /* wbus16=0 | sync=0 | vs=0 */
719 strncpy(&inq_response
[8], "NVMe ", 8);
720 strncpy(&inq_response
[16], dev
->model
, 16);
722 while (dev
->firmware_rev
[fw_offset
- 1] == ' ' && fw_offset
> 4)
725 strncpy(&inq_response
[32], dev
->firmware_rev
+ fw_offset
, 4);
727 xfer_len
= min(alloc_len
, STANDARD_INQUIRY_LENGTH
);
728 res
= nvme_trans_copy_to_user(hdr
, inq_response
, xfer_len
);
731 dma_free_coherent(&dev
->pci_dev
->dev
, sizeof(struct nvme_id_ns
), mem
,
737 static int nvme_trans_supported_vpd_pages(struct nvme_ns
*ns
,
738 struct sg_io_hdr
*hdr
, u8
*inq_response
,
741 int res
= SNTI_TRANSLATION_SUCCESS
;
744 memset(inq_response
, 0, STANDARD_INQUIRY_LENGTH
);
745 inq_response
[1] = INQ_SUPPORTED_VPD_PAGES_PAGE
; /* Page Code */
746 inq_response
[3] = INQ_NUM_SUPPORTED_VPD_PAGES
; /* Page Length */
747 inq_response
[4] = INQ_SUPPORTED_VPD_PAGES_PAGE
;
748 inq_response
[5] = INQ_UNIT_SERIAL_NUMBER_PAGE
;
749 inq_response
[6] = INQ_DEVICE_IDENTIFICATION_PAGE
;
750 inq_response
[7] = INQ_EXTENDED_INQUIRY_DATA_PAGE
;
751 inq_response
[8] = INQ_BDEV_CHARACTERISTICS_PAGE
;
752 inq_response
[9] = INQ_BDEV_LIMITS_PAGE
;
754 xfer_len
= min(alloc_len
, STANDARD_INQUIRY_LENGTH
);
755 res
= nvme_trans_copy_to_user(hdr
, inq_response
, xfer_len
);
760 static int nvme_trans_unit_serial_page(struct nvme_ns
*ns
,
761 struct sg_io_hdr
*hdr
, u8
*inq_response
,
764 struct nvme_dev
*dev
= ns
->dev
;
765 int res
= SNTI_TRANSLATION_SUCCESS
;
768 memset(inq_response
, 0, STANDARD_INQUIRY_LENGTH
);
769 inq_response
[1] = INQ_UNIT_SERIAL_NUMBER_PAGE
; /* Page Code */
770 inq_response
[3] = INQ_SERIAL_NUMBER_LENGTH
; /* Page Length */
771 strncpy(&inq_response
[4], dev
->serial
, INQ_SERIAL_NUMBER_LENGTH
);
773 xfer_len
= min(alloc_len
, STANDARD_INQUIRY_LENGTH
);
774 res
= nvme_trans_copy_to_user(hdr
, inq_response
, xfer_len
);
779 static int nvme_trans_device_id_page(struct nvme_ns
*ns
, struct sg_io_hdr
*hdr
,
780 u8
*inq_response
, int alloc_len
)
782 struct nvme_dev
*dev
= ns
->dev
;
785 int res
= SNTI_TRANSLATION_SUCCESS
;
788 __be32 tmp_id
= cpu_to_be32(ns
->ns_id
);
790 mem
= dma_alloc_coherent(&dev
->pci_dev
->dev
, sizeof(struct nvme_id_ns
),
791 &dma_addr
, GFP_KERNEL
);
797 memset(inq_response
, 0, alloc_len
);
798 inq_response
[1] = INQ_DEVICE_IDENTIFICATION_PAGE
; /* Page Code */
799 if (readl(&dev
->bar
->vs
) >= NVME_VS(1, 1)) {
800 struct nvme_id_ns
*id_ns
= mem
;
801 void *eui
= id_ns
->eui64
;
802 int len
= sizeof(id_ns
->eui64
);
804 nvme_sc
= nvme_identify(dev
, ns
->ns_id
, 0, dma_addr
);
805 res
= nvme_trans_status_code(hdr
, nvme_sc
);
813 if (readl(&dev
->bar
->vs
) >= NVME_VS(1, 2)) {
814 if (bitmap_empty(eui
, len
* 8)) {
816 len
= sizeof(id_ns
->nguid
);
819 if (bitmap_empty(eui
, len
* 8))
822 inq_response
[3] = 4 + len
; /* Page Length */
823 /* Designation Descriptor start */
824 inq_response
[4] = 0x01; /* Proto ID=0h | Code set=1h */
825 inq_response
[5] = 0x02; /* PIV=0b | Asso=00b | Designator Type=2h */
826 inq_response
[6] = 0x00; /* Rsvd */
827 inq_response
[7] = len
; /* Designator Length */
828 memcpy(&inq_response
[8], eui
, len
);
831 if (alloc_len
< 72) {
832 res
= nvme_trans_completion(hdr
,
833 SAM_STAT_CHECK_CONDITION
,
834 ILLEGAL_REQUEST
, SCSI_ASC_INVALID_CDB
,
835 SCSI_ASCQ_CAUSE_NOT_REPORTABLE
);
838 inq_response
[3] = 0x48; /* Page Length */
839 /* Designation Descriptor start */
840 inq_response
[4] = 0x03; /* Proto ID=0h | Code set=3h */
841 inq_response
[5] = 0x08; /* PIV=0b | Asso=00b | Designator Type=8h */
842 inq_response
[6] = 0x00; /* Rsvd */
843 inq_response
[7] = 0x44; /* Designator Length */
845 sprintf(&inq_response
[8], "%04x", dev
->pci_dev
->vendor
);
846 memcpy(&inq_response
[12], dev
->model
, sizeof(dev
->model
));
847 sprintf(&inq_response
[52], "%04x", tmp_id
);
848 memcpy(&inq_response
[56], dev
->serial
, sizeof(dev
->serial
));
850 xfer_len
= alloc_len
;
851 res
= nvme_trans_copy_to_user(hdr
, inq_response
, xfer_len
);
854 dma_free_coherent(&dev
->pci_dev
->dev
, sizeof(struct nvme_id_ns
), mem
,
860 static int nvme_trans_ext_inq_page(struct nvme_ns
*ns
, struct sg_io_hdr
*hdr
,
864 int res
= SNTI_TRANSLATION_SUCCESS
;
866 struct nvme_dev
*dev
= ns
->dev
;
869 struct nvme_id_ctrl
*id_ctrl
;
870 struct nvme_id_ns
*id_ns
;
874 u8 spt_lut
[8] = {0, 0, 2, 1, 4, 6, 5, 7};
875 u8 grd_chk
, app_chk
, ref_chk
, protect
;
880 inq_response
= kmalloc(EXTENDED_INQUIRY_DATA_PAGE_LENGTH
, GFP_KERNEL
);
881 if (inq_response
== NULL
) {
886 mem
= dma_alloc_coherent(&dev
->pci_dev
->dev
, sizeof(struct nvme_id_ns
),
887 &dma_addr
, GFP_KERNEL
);
893 /* nvme ns identify */
894 nvme_sc
= nvme_identify(dev
, ns
->ns_id
, 0, dma_addr
);
895 res
= nvme_trans_status_code(hdr
, nvme_sc
);
903 spt
= spt_lut
[(id_ns
->dpc
) & 0x07] << 3;
904 (id_ns
->dps
) ? (protect
= 0x01) : (protect
= 0);
905 grd_chk
= protect
<< 2;
906 app_chk
= protect
<< 1;
909 /* nvme controller identify */
910 nvme_sc
= nvme_identify(dev
, 0, 1, dma_addr
);
911 res
= nvme_trans_status_code(hdr
, nvme_sc
);
919 v_sup
= id_ctrl
->vwc
;
921 memset(inq_response
, 0, EXTENDED_INQUIRY_DATA_PAGE_LENGTH
);
922 inq_response
[1] = INQ_EXTENDED_INQUIRY_DATA_PAGE
; /* Page Code */
923 inq_response
[2] = 0x00; /* Page Length MSB */
924 inq_response
[3] = 0x3C; /* Page Length LSB */
925 inq_response
[4] = microcode
| spt
| grd_chk
| app_chk
| ref_chk
;
926 inq_response
[5] = uask_sup
;
927 inq_response
[6] = v_sup
;
928 inq_response
[7] = luiclr
;
932 xfer_len
= min(alloc_len
, EXTENDED_INQUIRY_DATA_PAGE_LENGTH
);
933 res
= nvme_trans_copy_to_user(hdr
, inq_response
, xfer_len
);
936 dma_free_coherent(&dev
->pci_dev
->dev
, sizeof(struct nvme_id_ns
), mem
,
944 static int nvme_trans_bdev_limits_page(struct nvme_ns
*ns
, struct sg_io_hdr
*hdr
,
945 u8
*inq_response
, int alloc_len
)
947 __be32 max_sectors
= cpu_to_be32(
948 nvme_block_nr(ns
, queue_max_hw_sectors(ns
->queue
)));
949 __be32 max_discard
= cpu_to_be32(ns
->queue
->limits
.max_discard_sectors
);
950 __be32 discard_desc_count
= cpu_to_be32(0x100);
952 memset(inq_response
, 0, STANDARD_INQUIRY_LENGTH
);
953 inq_response
[1] = VPD_BLOCK_LIMITS
;
954 inq_response
[3] = 0x3c; /* Page Length */
955 memcpy(&inq_response
[8], &max_sectors
, sizeof(u32
));
956 memcpy(&inq_response
[20], &max_discard
, sizeof(u32
));
959 memcpy(&inq_response
[24], &discard_desc_count
, sizeof(u32
));
961 return nvme_trans_copy_to_user(hdr
, inq_response
, 0x3c);
964 static int nvme_trans_bdev_char_page(struct nvme_ns
*ns
, struct sg_io_hdr
*hdr
,
968 int res
= SNTI_TRANSLATION_SUCCESS
;
971 inq_response
= kzalloc(EXTENDED_INQUIRY_DATA_PAGE_LENGTH
, GFP_KERNEL
);
972 if (inq_response
== NULL
) {
977 inq_response
[1] = INQ_BDEV_CHARACTERISTICS_PAGE
; /* Page Code */
978 inq_response
[2] = 0x00; /* Page Length MSB */
979 inq_response
[3] = 0x3C; /* Page Length LSB */
980 inq_response
[4] = 0x00; /* Medium Rotation Rate MSB */
981 inq_response
[5] = 0x01; /* Medium Rotation Rate LSB */
982 inq_response
[6] = 0x00; /* Form Factor */
984 xfer_len
= min(alloc_len
, EXTENDED_INQUIRY_DATA_PAGE_LENGTH
);
985 res
= nvme_trans_copy_to_user(hdr
, inq_response
, xfer_len
);
992 /* LOG SENSE Helper Functions */
994 static int nvme_trans_log_supp_pages(struct nvme_ns
*ns
, struct sg_io_hdr
*hdr
,
997 int res
= SNTI_TRANSLATION_SUCCESS
;
1001 log_response
= kzalloc(LOG_PAGE_SUPPORTED_LOG_PAGES_LENGTH
, GFP_KERNEL
);
1002 if (log_response
== NULL
) {
1007 log_response
[0] = LOG_PAGE_SUPPORTED_LOG_PAGES_PAGE
;
1008 /* Subpage=0x00, Page Length MSB=0 */
1009 log_response
[3] = SUPPORTED_LOG_PAGES_PAGE_LENGTH
;
1010 log_response
[4] = LOG_PAGE_SUPPORTED_LOG_PAGES_PAGE
;
1011 log_response
[5] = LOG_PAGE_INFORMATIONAL_EXCEPTIONS_PAGE
;
1012 log_response
[6] = LOG_PAGE_TEMPERATURE_PAGE
;
1014 xfer_len
= min(alloc_len
, LOG_PAGE_SUPPORTED_LOG_PAGES_LENGTH
);
1015 res
= nvme_trans_copy_to_user(hdr
, log_response
, xfer_len
);
1017 kfree(log_response
);
1022 static int nvme_trans_log_info_exceptions(struct nvme_ns
*ns
,
1023 struct sg_io_hdr
*hdr
, int alloc_len
)
1025 int res
= SNTI_TRANSLATION_SUCCESS
;
1028 struct nvme_command c
;
1029 struct nvme_dev
*dev
= ns
->dev
;
1030 struct nvme_smart_log
*smart_log
;
1031 dma_addr_t dma_addr
;
1036 log_response
= kzalloc(LOG_INFO_EXCP_PAGE_LENGTH
, GFP_KERNEL
);
1037 if (log_response
== NULL
) {
1042 mem
= dma_alloc_coherent(&dev
->pci_dev
->dev
,
1043 sizeof(struct nvme_smart_log
),
1044 &dma_addr
, GFP_KERNEL
);
1050 /* Get SMART Log Page */
1051 memset(&c
, 0, sizeof(c
));
1052 c
.common
.opcode
= nvme_admin_get_log_page
;
1053 c
.common
.nsid
= cpu_to_le32(0xFFFFFFFF);
1054 c
.common
.prp1
= cpu_to_le64(dma_addr
);
1055 c
.common
.cdw10
[0] = cpu_to_le32((((sizeof(struct nvme_smart_log
) /
1056 BYTES_TO_DWORDS
) - 1) << 16) | NVME_LOG_SMART
);
1057 res
= nvme_submit_admin_cmd(dev
, &c
, NULL
);
1058 if (res
!= NVME_SC_SUCCESS
) {
1059 temp_c
= LOG_TEMP_UNKNOWN
;
1062 temp_k
= (smart_log
->temperature
[1] << 8) +
1063 (smart_log
->temperature
[0]);
1064 temp_c
= temp_k
- KELVIN_TEMP_FACTOR
;
1067 log_response
[0] = LOG_PAGE_INFORMATIONAL_EXCEPTIONS_PAGE
;
1068 /* Subpage=0x00, Page Length MSB=0 */
1069 log_response
[3] = REMAINING_INFO_EXCP_PAGE_LENGTH
;
1070 /* Informational Exceptions Log Parameter 1 Start */
1071 /* Parameter Code=0x0000 bytes 4,5 */
1072 log_response
[6] = 0x23; /* DU=0, TSD=1, ETC=0, TMC=0, FMT_AND_LNK=11b */
1073 log_response
[7] = 0x04; /* PARAMETER LENGTH */
1074 /* Add sense Code and qualifier = 0x00 each */
1075 /* Use Temperature from NVMe Get Log Page, convert to C from K */
1076 log_response
[10] = temp_c
;
1078 xfer_len
= min(alloc_len
, LOG_INFO_EXCP_PAGE_LENGTH
);
1079 res
= nvme_trans_copy_to_user(hdr
, log_response
, xfer_len
);
1081 dma_free_coherent(&dev
->pci_dev
->dev
, sizeof(struct nvme_smart_log
),
1084 kfree(log_response
);
1089 static int nvme_trans_log_temperature(struct nvme_ns
*ns
, struct sg_io_hdr
*hdr
,
1092 int res
= SNTI_TRANSLATION_SUCCESS
;
1095 struct nvme_command c
;
1096 struct nvme_dev
*dev
= ns
->dev
;
1097 struct nvme_smart_log
*smart_log
;
1098 dma_addr_t dma_addr
;
1101 u8 temp_c_cur
, temp_c_thresh
;
1104 log_response
= kzalloc(LOG_TEMP_PAGE_LENGTH
, GFP_KERNEL
);
1105 if (log_response
== NULL
) {
1110 mem
= dma_alloc_coherent(&dev
->pci_dev
->dev
,
1111 sizeof(struct nvme_smart_log
),
1112 &dma_addr
, GFP_KERNEL
);
1118 /* Get SMART Log Page */
1119 memset(&c
, 0, sizeof(c
));
1120 c
.common
.opcode
= nvme_admin_get_log_page
;
1121 c
.common
.nsid
= cpu_to_le32(0xFFFFFFFF);
1122 c
.common
.prp1
= cpu_to_le64(dma_addr
);
1123 c
.common
.cdw10
[0] = cpu_to_le32((((sizeof(struct nvme_smart_log
) /
1124 BYTES_TO_DWORDS
) - 1) << 16) | NVME_LOG_SMART
);
1125 res
= nvme_submit_admin_cmd(dev
, &c
, NULL
);
1126 if (res
!= NVME_SC_SUCCESS
) {
1127 temp_c_cur
= LOG_TEMP_UNKNOWN
;
1130 temp_k
= (smart_log
->temperature
[1] << 8) +
1131 (smart_log
->temperature
[0]);
1132 temp_c_cur
= temp_k
- KELVIN_TEMP_FACTOR
;
1135 /* Get Features for Temp Threshold */
1136 res
= nvme_get_features(dev
, NVME_FEAT_TEMP_THRESH
, 0, 0,
1138 if (res
!= NVME_SC_SUCCESS
)
1139 temp_c_thresh
= LOG_TEMP_UNKNOWN
;
1141 temp_c_thresh
= (feature_resp
& 0xFFFF) - KELVIN_TEMP_FACTOR
;
1143 log_response
[0] = LOG_PAGE_TEMPERATURE_PAGE
;
1144 /* Subpage=0x00, Page Length MSB=0 */
1145 log_response
[3] = REMAINING_TEMP_PAGE_LENGTH
;
1146 /* Temperature Log Parameter 1 (Temperature) Start */
1147 /* Parameter Code = 0x0000 */
1148 log_response
[6] = 0x01; /* Format and Linking = 01b */
1149 log_response
[7] = 0x02; /* Parameter Length */
1150 /* Use Temperature from NVMe Get Log Page, convert to C from K */
1151 log_response
[9] = temp_c_cur
;
1152 /* Temperature Log Parameter 2 (Reference Temperature) Start */
1153 log_response
[11] = 0x01; /* Parameter Code = 0x0001 */
1154 log_response
[12] = 0x01; /* Format and Linking = 01b */
1155 log_response
[13] = 0x02; /* Parameter Length */
1156 /* Use Temperature Thresh from NVMe Get Log Page, convert to C from K */
1157 log_response
[15] = temp_c_thresh
;
1159 xfer_len
= min(alloc_len
, LOG_TEMP_PAGE_LENGTH
);
1160 res
= nvme_trans_copy_to_user(hdr
, log_response
, xfer_len
);
1162 dma_free_coherent(&dev
->pci_dev
->dev
, sizeof(struct nvme_smart_log
),
1165 kfree(log_response
);
1170 /* MODE SENSE Helper Functions */
1172 static int nvme_trans_fill_mode_parm_hdr(u8
*resp
, int len
, u8 cdb10
, u8 llbaa
,
1173 u16 mode_data_length
, u16 blk_desc_len
)
1175 /* Quick check to make sure I don't stomp on my own memory... */
1176 if ((cdb10
&& len
< 8) || (!cdb10
&& len
< 4))
1177 return SNTI_INTERNAL_ERROR
;
1180 resp
[0] = (mode_data_length
& 0xFF00) >> 8;
1181 resp
[1] = (mode_data_length
& 0x00FF);
1182 /* resp[2] and [3] are zero */
1184 resp
[5] = RESERVED_FIELD
;
1185 resp
[6] = (blk_desc_len
& 0xFF00) >> 8;
1186 resp
[7] = (blk_desc_len
& 0x00FF);
1188 resp
[0] = (mode_data_length
& 0x00FF);
1189 /* resp[1] and [2] are zero */
1190 resp
[3] = (blk_desc_len
& 0x00FF);
1193 return SNTI_TRANSLATION_SUCCESS
;
1196 static int nvme_trans_fill_blk_desc(struct nvme_ns
*ns
, struct sg_io_hdr
*hdr
,
1197 u8
*resp
, int len
, u8 llbaa
)
1199 int res
= SNTI_TRANSLATION_SUCCESS
;
1201 struct nvme_dev
*dev
= ns
->dev
;
1202 dma_addr_t dma_addr
;
1204 struct nvme_id_ns
*id_ns
;
1208 if (llbaa
== 0 && len
< MODE_PAGE_BLK_DES_LEN
)
1209 return SNTI_INTERNAL_ERROR
;
1210 else if (llbaa
> 0 && len
< MODE_PAGE_LLBAA_BLK_DES_LEN
)
1211 return SNTI_INTERNAL_ERROR
;
1213 mem
= dma_alloc_coherent(&dev
->pci_dev
->dev
, sizeof(struct nvme_id_ns
),
1214 &dma_addr
, GFP_KERNEL
);
1220 /* nvme ns identify */
1221 nvme_sc
= nvme_identify(dev
, ns
->ns_id
, 0, dma_addr
);
1222 res
= nvme_trans_status_code(hdr
, nvme_sc
);
1230 flbas
= (id_ns
->flbas
) & 0x0F;
1231 lba_length
= (1 << (id_ns
->lbaf
[flbas
].ds
));
1234 __be32 tmp_cap
= cpu_to_be32(le64_to_cpu(id_ns
->ncap
));
1235 /* Byte 4 is reserved */
1236 __be32 tmp_len
= cpu_to_be32(lba_length
& 0x00FFFFFF);
1238 memcpy(resp
, &tmp_cap
, sizeof(u32
));
1239 memcpy(&resp
[4], &tmp_len
, sizeof(u32
));
1241 __be64 tmp_cap
= cpu_to_be64(le64_to_cpu(id_ns
->ncap
));
1242 __be32 tmp_len
= cpu_to_be32(lba_length
);
1244 memcpy(resp
, &tmp_cap
, sizeof(u64
));
1245 /* Bytes 8, 9, 10, 11 are reserved */
1246 memcpy(&resp
[12], &tmp_len
, sizeof(u32
));
1250 dma_free_coherent(&dev
->pci_dev
->dev
, sizeof(struct nvme_id_ns
), mem
,
1256 static int nvme_trans_fill_control_page(struct nvme_ns
*ns
,
1257 struct sg_io_hdr
*hdr
, u8
*resp
,
1260 if (len
< MODE_PAGE_CONTROL_LEN
)
1261 return SNTI_INTERNAL_ERROR
;
1263 resp
[0] = MODE_PAGE_CONTROL
;
1264 resp
[1] = MODE_PAGE_CONTROL_LEN_FIELD
;
1265 resp
[2] = 0x0E; /* TST=000b, TMF_ONLY=0, DPICZ=1,
1266 * D_SENSE=1, GLTSD=1, RLEC=0 */
1267 resp
[3] = 0x12; /* Q_ALGO_MODIFIER=1h, NUAR=0, QERR=01b */
1268 /* Byte 4: VS=0, RAC=0, UA_INT=0, SWP=0 */
1269 resp
[5] = 0x40; /* ATO=0, TAS=1, ATMPE=0, RWWP=0, AUTOLOAD=0 */
1270 /* resp[6] and [7] are obsolete, thus zero */
1271 resp
[8] = 0xFF; /* Busy timeout period = 0xffff */
1273 /* Bytes 10,11: Extended selftest completion time = 0x0000 */
1275 return SNTI_TRANSLATION_SUCCESS
;
1278 static int nvme_trans_fill_caching_page(struct nvme_ns
*ns
,
1279 struct sg_io_hdr
*hdr
,
1282 int res
= SNTI_TRANSLATION_SUCCESS
;
1284 struct nvme_dev
*dev
= ns
->dev
;
1288 if (len
< MODE_PAGE_CACHING_LEN
)
1289 return SNTI_INTERNAL_ERROR
;
1291 nvme_sc
= nvme_get_features(dev
, NVME_FEAT_VOLATILE_WC
, 0, 0,
1293 res
= nvme_trans_status_code(hdr
, nvme_sc
);
1300 vwc
= feature_resp
& 0x00000001;
1302 resp
[0] = MODE_PAGE_CACHING
;
1303 resp
[1] = MODE_PAGE_CACHING_LEN_FIELD
;
1310 static int nvme_trans_fill_pow_cnd_page(struct nvme_ns
*ns
,
1311 struct sg_io_hdr
*hdr
, u8
*resp
,
1314 int res
= SNTI_TRANSLATION_SUCCESS
;
1316 if (len
< MODE_PAGE_POW_CND_LEN
)
1317 return SNTI_INTERNAL_ERROR
;
1319 resp
[0] = MODE_PAGE_POWER_CONDITION
;
1320 resp
[1] = MODE_PAGE_POW_CND_LEN_FIELD
;
1321 /* All other bytes are zero */
1326 static int nvme_trans_fill_inf_exc_page(struct nvme_ns
*ns
,
1327 struct sg_io_hdr
*hdr
, u8
*resp
,
1330 int res
= SNTI_TRANSLATION_SUCCESS
;
1332 if (len
< MODE_PAGE_INF_EXC_LEN
)
1333 return SNTI_INTERNAL_ERROR
;
1335 resp
[0] = MODE_PAGE_INFO_EXCEP
;
1336 resp
[1] = MODE_PAGE_INF_EXC_LEN_FIELD
;
1338 /* All other bytes are zero */
1343 static int nvme_trans_fill_all_pages(struct nvme_ns
*ns
, struct sg_io_hdr
*hdr
,
1346 int res
= SNTI_TRANSLATION_SUCCESS
;
1347 u16 mode_pages_offset_1
= 0;
1348 u16 mode_pages_offset_2
, mode_pages_offset_3
, mode_pages_offset_4
;
1350 mode_pages_offset_2
= mode_pages_offset_1
+ MODE_PAGE_CACHING_LEN
;
1351 mode_pages_offset_3
= mode_pages_offset_2
+ MODE_PAGE_CONTROL_LEN
;
1352 mode_pages_offset_4
= mode_pages_offset_3
+ MODE_PAGE_POW_CND_LEN
;
1354 res
= nvme_trans_fill_caching_page(ns
, hdr
, &resp
[mode_pages_offset_1
],
1355 MODE_PAGE_CACHING_LEN
);
1356 if (res
!= SNTI_TRANSLATION_SUCCESS
)
1358 res
= nvme_trans_fill_control_page(ns
, hdr
, &resp
[mode_pages_offset_2
],
1359 MODE_PAGE_CONTROL_LEN
);
1360 if (res
!= SNTI_TRANSLATION_SUCCESS
)
1362 res
= nvme_trans_fill_pow_cnd_page(ns
, hdr
, &resp
[mode_pages_offset_3
],
1363 MODE_PAGE_POW_CND_LEN
);
1364 if (res
!= SNTI_TRANSLATION_SUCCESS
)
1366 res
= nvme_trans_fill_inf_exc_page(ns
, hdr
, &resp
[mode_pages_offset_4
],
1367 MODE_PAGE_INF_EXC_LEN
);
1368 if (res
!= SNTI_TRANSLATION_SUCCESS
)
1375 static inline int nvme_trans_get_blk_desc_len(u8 dbd
, u8 llbaa
)
1377 if (dbd
== MODE_SENSE_BLK_DESC_ENABLED
) {
1378 /* SPC-4: len = 8 x Num_of_descriptors if llbaa = 0, 16x if 1 */
1379 return 8 * (llbaa
+ 1) * MODE_SENSE_BLK_DESC_COUNT
;
1385 static int nvme_trans_mode_page_create(struct nvme_ns
*ns
,
1386 struct sg_io_hdr
*hdr
, u8
*cmd
,
1387 u16 alloc_len
, u8 cdb10
,
1388 int (*mode_page_fill_func
)
1390 struct sg_io_hdr
*hdr
, u8
*, int),
1391 u16 mode_pages_tot_len
)
1393 int res
= SNTI_TRANSLATION_SUCCESS
;
1399 u16 mode_pages_offset_1
;
1400 u16 blk_desc_len
, blk_desc_offset
, mode_data_length
;
1402 dbd
= GET_MODE_SENSE_DBD(cmd
);
1403 llbaa
= GET_MODE_SENSE_LLBAA(cmd
);
1404 mph_size
= GET_MODE_SENSE_MPH_SIZE(cdb10
);
1405 blk_desc_len
= nvme_trans_get_blk_desc_len(dbd
, llbaa
);
1407 resp_size
= mph_size
+ blk_desc_len
+ mode_pages_tot_len
;
1408 /* Refer spc4r34 Table 440 for calculation of Mode data Length field */
1409 mode_data_length
= 3 + (3 * cdb10
) + blk_desc_len
+ mode_pages_tot_len
;
1411 blk_desc_offset
= mph_size
;
1412 mode_pages_offset_1
= blk_desc_offset
+ blk_desc_len
;
1414 response
= kzalloc(resp_size
, GFP_KERNEL
);
1415 if (response
== NULL
) {
1420 res
= nvme_trans_fill_mode_parm_hdr(&response
[0], mph_size
, cdb10
,
1421 llbaa
, mode_data_length
, blk_desc_len
);
1422 if (res
!= SNTI_TRANSLATION_SUCCESS
)
1424 if (blk_desc_len
> 0) {
1425 res
= nvme_trans_fill_blk_desc(ns
, hdr
,
1426 &response
[blk_desc_offset
],
1427 blk_desc_len
, llbaa
);
1428 if (res
!= SNTI_TRANSLATION_SUCCESS
)
1431 res
= mode_page_fill_func(ns
, hdr
, &response
[mode_pages_offset_1
],
1432 mode_pages_tot_len
);
1433 if (res
!= SNTI_TRANSLATION_SUCCESS
)
1436 xfer_len
= min(alloc_len
, resp_size
);
1437 res
= nvme_trans_copy_to_user(hdr
, response
, xfer_len
);
1445 /* Read Capacity Helper Functions */
1447 static void nvme_trans_fill_read_cap(u8
*response
, struct nvme_id_ns
*id_ns
,
1454 u8 p_type_lut
[4] = {0, 0, 1, 2};
1459 flbas
= (id_ns
->flbas
) & 0x0F;
1460 lba_length
= (1 << (id_ns
->lbaf
[flbas
].ds
));
1461 rlba
= le64_to_cpup(&id_ns
->nsze
) - 1;
1462 (id_ns
->dps
) ? (prot_en
= 0x01) : (prot_en
= 0);
1465 if (rlba
> 0xFFFFFFFF)
1467 tmp_rlba_32
= cpu_to_be32(rlba
);
1468 tmp_len
= cpu_to_be32(lba_length
);
1469 memcpy(response
, &tmp_rlba_32
, sizeof(u32
));
1470 memcpy(&response
[4], &tmp_len
, sizeof(u32
));
1472 tmp_rlba
= cpu_to_be64(rlba
);
1473 tmp_len
= cpu_to_be32(lba_length
);
1474 memcpy(response
, &tmp_rlba
, sizeof(u64
));
1475 memcpy(&response
[8], &tmp_len
, sizeof(u32
));
1476 response
[12] = (p_type_lut
[id_ns
->dps
& 0x3] << 1) | prot_en
;
1477 /* P_I_Exponent = 0x0 | LBPPBE = 0x0 */
1478 /* LBPME = 0 | LBPRZ = 0 | LALBA = 0x00 */
1479 /* Bytes 16-31 - Reserved */
1483 /* Start Stop Unit Helper Functions */
1485 static int nvme_trans_power_state(struct nvme_ns
*ns
, struct sg_io_hdr
*hdr
,
1486 u8 pc
, u8 pcmod
, u8 start
)
1488 int res
= SNTI_TRANSLATION_SUCCESS
;
1490 struct nvme_dev
*dev
= ns
->dev
;
1491 dma_addr_t dma_addr
;
1493 struct nvme_id_ctrl
*id_ctrl
;
1494 int lowest_pow_st
; /* max npss = lowest power consumption */
1495 unsigned ps_desired
= 0;
1497 /* NVMe Controller Identify */
1498 mem
= dma_alloc_coherent(&dev
->pci_dev
->dev
,
1499 sizeof(struct nvme_id_ctrl
),
1500 &dma_addr
, GFP_KERNEL
);
1505 nvme_sc
= nvme_identify(dev
, 0, 1, dma_addr
);
1506 res
= nvme_trans_status_code(hdr
, nvme_sc
);
1514 lowest_pow_st
= max(POWER_STATE_0
, (int)(id_ctrl
->npss
- 1));
1517 case NVME_POWER_STATE_START_VALID
:
1518 /* Action unspecified if POWER CONDITION MODIFIER != 0 */
1519 if (pcmod
== 0 && start
== 0x1)
1520 ps_desired
= POWER_STATE_0
;
1521 if (pcmod
== 0 && start
== 0x0)
1522 ps_desired
= lowest_pow_st
;
1524 case NVME_POWER_STATE_ACTIVE
:
1525 /* Action unspecified if POWER CONDITION MODIFIER != 0 */
1527 ps_desired
= POWER_STATE_0
;
1529 case NVME_POWER_STATE_IDLE
:
1530 /* Action unspecified if POWER CONDITION MODIFIER != [0,1,2] */
1532 ps_desired
= POWER_STATE_1
;
1533 else if (pcmod
== 0x1)
1534 ps_desired
= POWER_STATE_2
;
1535 else if (pcmod
== 0x2)
1536 ps_desired
= POWER_STATE_3
;
1538 case NVME_POWER_STATE_STANDBY
:
1539 /* Action unspecified if POWER CONDITION MODIFIER != [0,1] */
1541 ps_desired
= max(POWER_STATE_0
, (lowest_pow_st
- 2));
1542 else if (pcmod
== 0x1)
1543 ps_desired
= max(POWER_STATE_0
, (lowest_pow_st
- 1));
1545 case NVME_POWER_STATE_LU_CONTROL
:
1547 res
= nvme_trans_completion(hdr
, SAM_STAT_CHECK_CONDITION
,
1548 ILLEGAL_REQUEST
, SCSI_ASC_INVALID_CDB
,
1549 SCSI_ASCQ_CAUSE_NOT_REPORTABLE
);
1552 nvme_sc
= nvme_set_features(dev
, NVME_FEAT_POWER_MGMT
, ps_desired
, 0,
1554 res
= nvme_trans_status_code(hdr
, nvme_sc
);
1560 dma_free_coherent(&dev
->pci_dev
->dev
, sizeof(struct nvme_id_ctrl
), mem
,
1566 /* Write Buffer Helper Functions */
1567 /* Also using this for Format Unit with hdr passed as NULL, and buffer_id, 0 */
1569 static int nvme_trans_send_fw_cmd(struct nvme_ns
*ns
, struct sg_io_hdr
*hdr
,
1570 u8 opcode
, u32 tot_len
, u32 offset
,
1573 int res
= SNTI_TRANSLATION_SUCCESS
;
1575 struct nvme_dev
*dev
= ns
->dev
;
1576 struct nvme_command c
;
1577 struct nvme_iod
*iod
= NULL
;
1580 memset(&c
, 0, sizeof(c
));
1581 c
.common
.opcode
= opcode
;
1582 if (opcode
== nvme_admin_download_fw
) {
1583 if (hdr
->iovec_count
> 0) {
1584 /* Assuming SGL is not allowed for this command */
1585 res
= nvme_trans_completion(hdr
,
1586 SAM_STAT_CHECK_CONDITION
,
1588 SCSI_ASC_INVALID_CDB
,
1589 SCSI_ASCQ_CAUSE_NOT_REPORTABLE
);
1592 iod
= nvme_map_user_pages(dev
, DMA_TO_DEVICE
,
1593 (unsigned long)hdr
->dxferp
, tot_len
);
1598 length
= nvme_setup_prps(dev
, iod
, tot_len
, GFP_KERNEL
);
1599 if (length
!= tot_len
) {
1604 c
.dlfw
.prp1
= cpu_to_le64(sg_dma_address(iod
->sg
));
1605 c
.dlfw
.prp2
= cpu_to_le64(iod
->first_dma
);
1606 c
.dlfw
.numd
= cpu_to_le32((tot_len
/BYTES_TO_DWORDS
) - 1);
1607 c
.dlfw
.offset
= cpu_to_le32(offset
/BYTES_TO_DWORDS
);
1608 } else if (opcode
== nvme_admin_activate_fw
) {
1609 u32 cdw10
= buffer_id
| NVME_FWACT_REPL_ACTV
;
1610 c
.common
.cdw10
[0] = cpu_to_le32(cdw10
);
1613 nvme_sc
= nvme_submit_admin_cmd(dev
, &c
, NULL
);
1614 res
= nvme_trans_status_code(hdr
, nvme_sc
);
1621 if (opcode
== nvme_admin_download_fw
) {
1622 nvme_unmap_user_pages(dev
, DMA_TO_DEVICE
, iod
);
1623 nvme_free_iod(dev
, iod
);
1629 /* Mode Select Helper Functions */
1631 static inline void nvme_trans_modesel_get_bd_len(u8
*parm_list
, u8 cdb10
,
1632 u16
*bd_len
, u8
*llbaa
)
1636 *bd_len
= (parm_list
[MODE_SELECT_10_BD_OFFSET
] << 8) +
1637 parm_list
[MODE_SELECT_10_BD_OFFSET
+ 1];
1638 *llbaa
= parm_list
[MODE_SELECT_10_LLBAA_OFFSET
] &
1639 MODE_SELECT_10_LLBAA_MASK
;
1642 *bd_len
= parm_list
[MODE_SELECT_6_BD_OFFSET
];
1646 static void nvme_trans_modesel_save_bd(struct nvme_ns
*ns
, u8
*parm_list
,
1647 u16 idx
, u16 bd_len
, u8 llbaa
)
1651 bd_num
= bd_len
/ ((llbaa
== 0) ?
1652 SHORT_DESC_BLOCK
: LONG_DESC_BLOCK
);
1653 /* Store block descriptor info if a FORMAT UNIT comes later */
1654 /* TODO Saving 1st BD info; what to do if multiple BD received? */
1656 /* Standard Block Descriptor - spc4r34 7.5.5.1 */
1657 ns
->mode_select_num_blocks
=
1658 (parm_list
[idx
+ 1] << 16) +
1659 (parm_list
[idx
+ 2] << 8) +
1660 (parm_list
[idx
+ 3]);
1662 ns
->mode_select_block_len
=
1663 (parm_list
[idx
+ 5] << 16) +
1664 (parm_list
[idx
+ 6] << 8) +
1665 (parm_list
[idx
+ 7]);
1667 /* Long LBA Block Descriptor - sbc3r27 6.4.2.3 */
1668 ns
->mode_select_num_blocks
=
1669 (((u64
)parm_list
[idx
+ 0]) << 56) +
1670 (((u64
)parm_list
[idx
+ 1]) << 48) +
1671 (((u64
)parm_list
[idx
+ 2]) << 40) +
1672 (((u64
)parm_list
[idx
+ 3]) << 32) +
1673 (((u64
)parm_list
[idx
+ 4]) << 24) +
1674 (((u64
)parm_list
[idx
+ 5]) << 16) +
1675 (((u64
)parm_list
[idx
+ 6]) << 8) +
1676 ((u64
)parm_list
[idx
+ 7]);
1678 ns
->mode_select_block_len
=
1679 (parm_list
[idx
+ 12] << 24) +
1680 (parm_list
[idx
+ 13] << 16) +
1681 (parm_list
[idx
+ 14] << 8) +
1682 (parm_list
[idx
+ 15]);
1686 static int nvme_trans_modesel_get_mp(struct nvme_ns
*ns
, struct sg_io_hdr
*hdr
,
1687 u8
*mode_page
, u8 page_code
)
1689 int res
= SNTI_TRANSLATION_SUCCESS
;
1691 struct nvme_dev
*dev
= ns
->dev
;
1694 switch (page_code
) {
1695 case MODE_PAGE_CACHING
:
1696 dword11
= ((mode_page
[2] & CACHING_MODE_PAGE_WCE_MASK
) ? 1 : 0);
1697 nvme_sc
= nvme_set_features(dev
, NVME_FEAT_VOLATILE_WC
, dword11
,
1699 res
= nvme_trans_status_code(hdr
, nvme_sc
);
1707 case MODE_PAGE_CONTROL
:
1709 case MODE_PAGE_POWER_CONDITION
:
1710 /* Verify the OS is not trying to set timers */
1711 if ((mode_page
[2] & 0x01) != 0 || (mode_page
[3] & 0x0F) != 0) {
1712 res
= nvme_trans_completion(hdr
,
1713 SAM_STAT_CHECK_CONDITION
,
1715 SCSI_ASC_INVALID_PARAMETER
,
1716 SCSI_ASCQ_CAUSE_NOT_REPORTABLE
);
1718 res
= SNTI_INTERNAL_ERROR
;
1723 res
= nvme_trans_completion(hdr
, SAM_STAT_CHECK_CONDITION
,
1724 ILLEGAL_REQUEST
, SCSI_ASC_INVALID_CDB
,
1725 SCSI_ASCQ_CAUSE_NOT_REPORTABLE
);
1727 res
= SNTI_INTERNAL_ERROR
;
1734 static int nvme_trans_modesel_data(struct nvme_ns
*ns
, struct sg_io_hdr
*hdr
,
1735 u8
*cmd
, u16 parm_list_len
, u8 pf
,
1738 int res
= SNTI_TRANSLATION_SUCCESS
;
1742 u16 index
, saved_index
;
1746 /* Get parm list from data-in/out buffer */
1747 parm_list
= kmalloc(parm_list_len
, GFP_KERNEL
);
1748 if (parm_list
== NULL
) {
1753 res
= nvme_trans_copy_from_user(hdr
, parm_list
, parm_list_len
);
1754 if (res
!= SNTI_TRANSLATION_SUCCESS
)
1757 nvme_trans_modesel_get_bd_len(parm_list
, cdb10
, &bd_len
, &llbaa
);
1758 index
= (cdb10
) ? (MODE_SELECT_10_MPH_SIZE
) : (MODE_SELECT_6_MPH_SIZE
);
1761 /* Block Descriptors present, parse */
1762 nvme_trans_modesel_save_bd(ns
, parm_list
, index
, bd_len
, llbaa
);
1765 saved_index
= index
;
1767 /* Multiple mode pages may be present; iterate through all */
1768 /* In 1st Iteration, don't do NVME Command, only check for CDB errors */
1770 page_code
= parm_list
[index
] & MODE_SELECT_PAGE_CODE_MASK
;
1771 mp_size
= parm_list
[index
+ 1] + 2;
1772 if ((page_code
!= MODE_PAGE_CACHING
) &&
1773 (page_code
!= MODE_PAGE_CONTROL
) &&
1774 (page_code
!= MODE_PAGE_POWER_CONDITION
)) {
1775 res
= nvme_trans_completion(hdr
,
1776 SAM_STAT_CHECK_CONDITION
,
1778 SCSI_ASC_INVALID_CDB
,
1779 SCSI_ASCQ_CAUSE_NOT_REPORTABLE
);
1783 } while (index
< parm_list_len
);
1785 /* In 2nd Iteration, do the NVME Commands */
1786 index
= saved_index
;
1788 page_code
= parm_list
[index
] & MODE_SELECT_PAGE_CODE_MASK
;
1789 mp_size
= parm_list
[index
+ 1] + 2;
1790 res
= nvme_trans_modesel_get_mp(ns
, hdr
, &parm_list
[index
],
1792 if (res
!= SNTI_TRANSLATION_SUCCESS
)
1795 } while (index
< parm_list_len
);
1803 /* Format Unit Helper Functions */
1805 static int nvme_trans_fmt_set_blk_size_count(struct nvme_ns
*ns
,
1806 struct sg_io_hdr
*hdr
)
1808 int res
= SNTI_TRANSLATION_SUCCESS
;
1810 struct nvme_dev
*dev
= ns
->dev
;
1811 dma_addr_t dma_addr
;
1813 struct nvme_id_ns
*id_ns
;
1817 * SCSI Expects a MODE SELECT would have been issued prior to
1818 * a FORMAT UNIT, and the block size and number would be used
1819 * from the block descriptor in it. If a MODE SELECT had not
1820 * been issued, FORMAT shall use the current values for both.
1823 if (ns
->mode_select_num_blocks
== 0 || ns
->mode_select_block_len
== 0) {
1824 mem
= dma_alloc_coherent(&dev
->pci_dev
->dev
,
1825 sizeof(struct nvme_id_ns
), &dma_addr
, GFP_KERNEL
);
1830 /* nvme ns identify */
1831 nvme_sc
= nvme_identify(dev
, ns
->ns_id
, 0, dma_addr
);
1832 res
= nvme_trans_status_code(hdr
, nvme_sc
);
1841 if (ns
->mode_select_num_blocks
== 0)
1842 ns
->mode_select_num_blocks
= le64_to_cpu(id_ns
->ncap
);
1843 if (ns
->mode_select_block_len
== 0) {
1844 flbas
= (id_ns
->flbas
) & 0x0F;
1845 ns
->mode_select_block_len
=
1846 (1 << (id_ns
->lbaf
[flbas
].ds
));
1849 dma_free_coherent(&dev
->pci_dev
->dev
, sizeof(struct nvme_id_ns
),
1856 static int nvme_trans_fmt_get_parm_header(struct sg_io_hdr
*hdr
, u8 len
,
1857 u8 format_prot_info
, u8
*nvme_pf_code
)
1859 int res
= SNTI_TRANSLATION_SUCCESS
;
1861 u8 pf_usage
, pf_code
;
1863 parm_list
= kmalloc(len
, GFP_KERNEL
);
1864 if (parm_list
== NULL
) {
1868 res
= nvme_trans_copy_from_user(hdr
, parm_list
, len
);
1869 if (res
!= SNTI_TRANSLATION_SUCCESS
)
1872 if ((parm_list
[FORMAT_UNIT_IMMED_OFFSET
] &
1873 FORMAT_UNIT_IMMED_MASK
) != 0) {
1874 res
= nvme_trans_completion(hdr
, SAM_STAT_CHECK_CONDITION
,
1875 ILLEGAL_REQUEST
, SCSI_ASC_INVALID_CDB
,
1876 SCSI_ASCQ_CAUSE_NOT_REPORTABLE
);
1880 if (len
== FORMAT_UNIT_LONG_PARM_LIST_LEN
&&
1881 (parm_list
[FORMAT_UNIT_PROT_INT_OFFSET
] & 0x0F) != 0) {
1882 res
= nvme_trans_completion(hdr
, SAM_STAT_CHECK_CONDITION
,
1883 ILLEGAL_REQUEST
, SCSI_ASC_INVALID_CDB
,
1884 SCSI_ASCQ_CAUSE_NOT_REPORTABLE
);
1887 pf_usage
= parm_list
[FORMAT_UNIT_PROT_FIELD_USAGE_OFFSET
] &
1888 FORMAT_UNIT_PROT_FIELD_USAGE_MASK
;
1889 pf_code
= (pf_usage
<< 2) | format_prot_info
;
1904 res
= nvme_trans_completion(hdr
, SAM_STAT_CHECK_CONDITION
,
1905 ILLEGAL_REQUEST
, SCSI_ASC_INVALID_CDB
,
1906 SCSI_ASCQ_CAUSE_NOT_REPORTABLE
);
1916 static int nvme_trans_fmt_send_cmd(struct nvme_ns
*ns
, struct sg_io_hdr
*hdr
,
1919 int res
= SNTI_TRANSLATION_SUCCESS
;
1921 struct nvme_dev
*dev
= ns
->dev
;
1922 dma_addr_t dma_addr
;
1924 struct nvme_id_ns
*id_ns
;
1927 u8 selected_lbaf
= 0xFF;
1929 struct nvme_command c
;
1931 /* Loop thru LBAF's in id_ns to match reqd lbaf, put in cdw10 */
1932 mem
= dma_alloc_coherent(&dev
->pci_dev
->dev
, sizeof(struct nvme_id_ns
),
1933 &dma_addr
, GFP_KERNEL
);
1938 /* nvme ns identify */
1939 nvme_sc
= nvme_identify(dev
, ns
->ns_id
, 0, dma_addr
);
1940 res
= nvme_trans_status_code(hdr
, nvme_sc
);
1948 flbas
= (id_ns
->flbas
) & 0x0F;
1949 nlbaf
= id_ns
->nlbaf
;
1951 for (i
= 0; i
< nlbaf
; i
++) {
1952 if (ns
->mode_select_block_len
== (1 << (id_ns
->lbaf
[i
].ds
))) {
1957 if (selected_lbaf
> 0x0F) {
1958 res
= nvme_trans_completion(hdr
, SAM_STAT_CHECK_CONDITION
,
1959 ILLEGAL_REQUEST
, SCSI_ASC_INVALID_PARAMETER
,
1960 SCSI_ASCQ_CAUSE_NOT_REPORTABLE
);
1962 if (ns
->mode_select_num_blocks
!= le64_to_cpu(id_ns
->ncap
)) {
1963 res
= nvme_trans_completion(hdr
, SAM_STAT_CHECK_CONDITION
,
1964 ILLEGAL_REQUEST
, SCSI_ASC_INVALID_PARAMETER
,
1965 SCSI_ASCQ_CAUSE_NOT_REPORTABLE
);
1968 cdw10
|= prot_info
<< 5;
1969 cdw10
|= selected_lbaf
& 0x0F;
1970 memset(&c
, 0, sizeof(c
));
1971 c
.format
.opcode
= nvme_admin_format_nvm
;
1972 c
.format
.nsid
= cpu_to_le32(ns
->ns_id
);
1973 c
.format
.cdw10
= cpu_to_le32(cdw10
);
1975 nvme_sc
= nvme_submit_admin_cmd(dev
, &c
, NULL
);
1976 res
= nvme_trans_status_code(hdr
, nvme_sc
);
1983 dma_free_coherent(&dev
->pci_dev
->dev
, sizeof(struct nvme_id_ns
), mem
,
1989 /* Read/Write Helper Functions */
1991 static inline void nvme_trans_get_io_cdb6(u8
*cmd
,
1992 struct nvme_trans_io_cdb
*cdb_info
)
1995 cdb_info
->prot_info
= 0;
1996 cdb_info
->lba
= GET_U32_FROM_CDB(cmd
, IO_6_CDB_LBA_OFFSET
) &
1998 cdb_info
->xfer_len
= GET_U8_FROM_CDB(cmd
, IO_6_CDB_TX_LEN_OFFSET
);
2000 /* sbc3r27 sec 5.32 - TRANSFER LEN of 0 implies a 256 Block transfer */
2001 if (cdb_info
->xfer_len
== 0)
2002 cdb_info
->xfer_len
= IO_6_DEFAULT_TX_LEN
;
2005 static inline void nvme_trans_get_io_cdb10(u8
*cmd
,
2006 struct nvme_trans_io_cdb
*cdb_info
)
2008 cdb_info
->fua
= GET_U8_FROM_CDB(cmd
, IO_10_CDB_FUA_OFFSET
) &
2010 cdb_info
->prot_info
= GET_U8_FROM_CDB(cmd
, IO_10_CDB_WP_OFFSET
) &
2011 IO_CDB_WP_MASK
>> IO_CDB_WP_SHIFT
;
2012 cdb_info
->lba
= GET_U32_FROM_CDB(cmd
, IO_10_CDB_LBA_OFFSET
);
2013 cdb_info
->xfer_len
= GET_U16_FROM_CDB(cmd
, IO_10_CDB_TX_LEN_OFFSET
);
2016 static inline void nvme_trans_get_io_cdb12(u8
*cmd
,
2017 struct nvme_trans_io_cdb
*cdb_info
)
2019 cdb_info
->fua
= GET_U8_FROM_CDB(cmd
, IO_12_CDB_FUA_OFFSET
) &
2021 cdb_info
->prot_info
= GET_U8_FROM_CDB(cmd
, IO_12_CDB_WP_OFFSET
) &
2022 IO_CDB_WP_MASK
>> IO_CDB_WP_SHIFT
;
2023 cdb_info
->lba
= GET_U32_FROM_CDB(cmd
, IO_12_CDB_LBA_OFFSET
);
2024 cdb_info
->xfer_len
= GET_U32_FROM_CDB(cmd
, IO_12_CDB_TX_LEN_OFFSET
);
2027 static inline void nvme_trans_get_io_cdb16(u8
*cmd
,
2028 struct nvme_trans_io_cdb
*cdb_info
)
2030 cdb_info
->fua
= GET_U8_FROM_CDB(cmd
, IO_16_CDB_FUA_OFFSET
) &
2032 cdb_info
->prot_info
= GET_U8_FROM_CDB(cmd
, IO_16_CDB_WP_OFFSET
) &
2033 IO_CDB_WP_MASK
>> IO_CDB_WP_SHIFT
;
2034 cdb_info
->lba
= GET_U64_FROM_CDB(cmd
, IO_16_CDB_LBA_OFFSET
);
2035 cdb_info
->xfer_len
= GET_U32_FROM_CDB(cmd
, IO_16_CDB_TX_LEN_OFFSET
);
2038 static inline u32
nvme_trans_io_get_num_cmds(struct sg_io_hdr
*hdr
,
2039 struct nvme_trans_io_cdb
*cdb_info
,
2042 /* If using iovecs, send one nvme command per vector */
2043 if (hdr
->iovec_count
> 0)
2044 return hdr
->iovec_count
;
2045 else if (cdb_info
->xfer_len
> max_blocks
)
2046 return ((cdb_info
->xfer_len
- 1) / max_blocks
) + 1;
2051 static u16
nvme_trans_io_get_control(struct nvme_ns
*ns
,
2052 struct nvme_trans_io_cdb
*cdb_info
)
2056 /* When Protection information support is added, implement here */
2058 if (cdb_info
->fua
> 0)
2059 control
|= NVME_RW_FUA
;
2064 static int nvme_trans_do_nvme_io(struct nvme_ns
*ns
, struct sg_io_hdr
*hdr
,
2065 struct nvme_trans_io_cdb
*cdb_info
, u8 is_write
)
2067 int res
= SNTI_TRANSLATION_SUCCESS
;
2069 struct nvme_dev
*dev
= ns
->dev
;
2071 struct nvme_iod
*iod
;
2073 u64 unit_num_blocks
; /* Number of blocks to xfer in each nvme cmd */
2076 u64 nvme_offset
= 0;
2077 void __user
*next_mapping_addr
;
2078 struct nvme_command c
;
2079 u8 opcode
= (is_write
? nvme_cmd_write
: nvme_cmd_read
);
2081 u32 max_blocks
= queue_max_hw_sectors(ns
->queue
);
2083 num_cmds
= nvme_trans_io_get_num_cmds(hdr
, cdb_info
, max_blocks
);
2086 * This loop handles two cases.
2087 * First, when an SGL is used in the form of an iovec list:
2088 * - Use iov_base as the next mapping address for the nvme command_id
2089 * - Use iov_len as the data transfer length for the command.
2090 * Second, when we have a single buffer
2091 * - If larger than max_blocks, split into chunks, offset
2092 * each nvme command accordingly.
2094 for (i
= 0; i
< num_cmds
; i
++) {
2095 memset(&c
, 0, sizeof(c
));
2096 if (hdr
->iovec_count
> 0) {
2097 struct sg_iovec sgl
;
2099 retcode
= copy_from_user(&sgl
, hdr
->dxferp
+
2100 i
* sizeof(struct sg_iovec
),
2101 sizeof(struct sg_iovec
));
2104 unit_len
= sgl
.iov_len
;
2105 unit_num_blocks
= unit_len
>> ns
->lba_shift
;
2106 next_mapping_addr
= sgl
.iov_base
;
2108 unit_num_blocks
= min((u64
)max_blocks
,
2109 (cdb_info
->xfer_len
- nvme_offset
));
2110 unit_len
= unit_num_blocks
<< ns
->lba_shift
;
2111 next_mapping_addr
= hdr
->dxferp
+
2112 ((1 << ns
->lba_shift
) * nvme_offset
);
2115 c
.rw
.opcode
= opcode
;
2116 c
.rw
.nsid
= cpu_to_le32(ns
->ns_id
);
2117 c
.rw
.slba
= cpu_to_le64(cdb_info
->lba
+ nvme_offset
);
2118 c
.rw
.length
= cpu_to_le16(unit_num_blocks
- 1);
2119 control
= nvme_trans_io_get_control(ns
, cdb_info
);
2120 c
.rw
.control
= cpu_to_le16(control
);
2122 iod
= nvme_map_user_pages(dev
,
2123 (is_write
) ? DMA_TO_DEVICE
: DMA_FROM_DEVICE
,
2124 (unsigned long)next_mapping_addr
, unit_len
);
2129 retcode
= nvme_setup_prps(dev
, iod
, unit_len
, GFP_KERNEL
);
2130 if (retcode
!= unit_len
) {
2131 nvme_unmap_user_pages(dev
,
2132 (is_write
) ? DMA_TO_DEVICE
: DMA_FROM_DEVICE
,
2134 nvme_free_iod(dev
, iod
);
2138 c
.rw
.prp1
= cpu_to_le64(sg_dma_address(iod
->sg
));
2139 c
.rw
.prp2
= cpu_to_le64(iod
->first_dma
);
2141 nvme_offset
+= unit_num_blocks
;
2143 nvme_sc
= nvme_submit_io_cmd(dev
, ns
, &c
, NULL
);
2144 if (nvme_sc
!= NVME_SC_SUCCESS
) {
2145 nvme_unmap_user_pages(dev
,
2146 (is_write
) ? DMA_TO_DEVICE
: DMA_FROM_DEVICE
,
2148 nvme_free_iod(dev
, iod
);
2149 res
= nvme_trans_status_code(hdr
, nvme_sc
);
2152 nvme_unmap_user_pages(dev
,
2153 (is_write
) ? DMA_TO_DEVICE
: DMA_FROM_DEVICE
,
2155 nvme_free_iod(dev
, iod
);
2157 res
= nvme_trans_status_code(hdr
, NVME_SC_SUCCESS
);
2164 /* SCSI Command Translation Functions */
2166 static int nvme_trans_io(struct nvme_ns
*ns
, struct sg_io_hdr
*hdr
, u8 is_write
,
2169 int res
= SNTI_TRANSLATION_SUCCESS
;
2170 struct nvme_trans_io_cdb cdb_info
;
2173 u64 sum_iov_len
= 0;
2174 struct sg_iovec sgl
;
2178 /* Extract Fields from CDB */
2182 nvme_trans_get_io_cdb6(cmd
, &cdb_info
);
2186 nvme_trans_get_io_cdb10(cmd
, &cdb_info
);
2190 nvme_trans_get_io_cdb12(cmd
, &cdb_info
);
2194 nvme_trans_get_io_cdb16(cmd
, &cdb_info
);
2197 /* Will never really reach here */
2198 res
= SNTI_INTERNAL_ERROR
;
2202 /* Calculate total length of transfer (in bytes) */
2203 if (hdr
->iovec_count
> 0) {
2204 for (i
= 0; i
< hdr
->iovec_count
; i
++) {
2205 not_copied
= copy_from_user(&sgl
, hdr
->dxferp
+
2206 i
* sizeof(struct sg_iovec
),
2207 sizeof(struct sg_iovec
));
2210 sum_iov_len
+= sgl
.iov_len
;
2211 /* IO vector sizes should be multiples of block size */
2212 if (sgl
.iov_len
% (1 << ns
->lba_shift
) != 0) {
2213 res
= nvme_trans_completion(hdr
,
2214 SAM_STAT_CHECK_CONDITION
,
2216 SCSI_ASC_INVALID_PARAMETER
,
2217 SCSI_ASCQ_CAUSE_NOT_REPORTABLE
);
2222 sum_iov_len
= hdr
->dxfer_len
;
2225 /* As Per sg ioctl howto, if the lengths differ, use the lower one */
2226 xfer_bytes
= min(((u64
)hdr
->dxfer_len
), sum_iov_len
);
2228 /* If block count and actual data buffer size dont match, error out */
2229 if (xfer_bytes
!= (cdb_info
.xfer_len
<< ns
->lba_shift
)) {
2234 /* Check for 0 length transfer - it is not illegal */
2235 if (cdb_info
.xfer_len
== 0)
2238 /* Send NVMe IO Command(s) */
2239 res
= nvme_trans_do_nvme_io(ns
, hdr
, &cdb_info
, is_write
);
2240 if (res
!= SNTI_TRANSLATION_SUCCESS
)
2247 static int nvme_trans_inquiry(struct nvme_ns
*ns
, struct sg_io_hdr
*hdr
,
2250 int res
= SNTI_TRANSLATION_SUCCESS
;
2256 evpd
= GET_INQ_EVPD_BIT(cmd
);
2257 page_code
= GET_INQ_PAGE_CODE(cmd
);
2258 alloc_len
= GET_INQ_ALLOC_LENGTH(cmd
);
2260 inq_response
= kmalloc(max(alloc_len
, STANDARD_INQUIRY_LENGTH
),
2262 if (inq_response
== NULL
) {
2268 if (page_code
== INQ_STANDARD_INQUIRY_PAGE
) {
2269 res
= nvme_trans_standard_inquiry_page(ns
, hdr
,
2270 inq_response
, alloc_len
);
2272 res
= nvme_trans_completion(hdr
,
2273 SAM_STAT_CHECK_CONDITION
,
2275 SCSI_ASC_INVALID_CDB
,
2276 SCSI_ASCQ_CAUSE_NOT_REPORTABLE
);
2279 switch (page_code
) {
2280 case VPD_SUPPORTED_PAGES
:
2281 res
= nvme_trans_supported_vpd_pages(ns
, hdr
,
2282 inq_response
, alloc_len
);
2284 case VPD_SERIAL_NUMBER
:
2285 res
= nvme_trans_unit_serial_page(ns
, hdr
, inq_response
,
2288 case VPD_DEVICE_IDENTIFIERS
:
2289 res
= nvme_trans_device_id_page(ns
, hdr
, inq_response
,
2292 case VPD_EXTENDED_INQUIRY
:
2293 res
= nvme_trans_ext_inq_page(ns
, hdr
, alloc_len
);
2295 case VPD_BLOCK_LIMITS
:
2296 res
= nvme_trans_bdev_limits_page(ns
, hdr
, inq_response
,
2299 case VPD_BLOCK_DEV_CHARACTERISTICS
:
2300 res
= nvme_trans_bdev_char_page(ns
, hdr
, alloc_len
);
2303 res
= nvme_trans_completion(hdr
,
2304 SAM_STAT_CHECK_CONDITION
,
2306 SCSI_ASC_INVALID_CDB
,
2307 SCSI_ASCQ_CAUSE_NOT_REPORTABLE
);
2311 kfree(inq_response
);
2316 static int nvme_trans_log_sense(struct nvme_ns
*ns
, struct sg_io_hdr
*hdr
,
2319 int res
= SNTI_TRANSLATION_SUCCESS
;
2325 sp
= GET_U8_FROM_CDB(cmd
, LOG_SENSE_CDB_SP_OFFSET
);
2326 if (sp
!= LOG_SENSE_CDB_SP_NOT_ENABLED
) {
2327 res
= nvme_trans_completion(hdr
, SAM_STAT_CHECK_CONDITION
,
2328 ILLEGAL_REQUEST
, SCSI_ASC_INVALID_CDB
,
2329 SCSI_ASCQ_CAUSE_NOT_REPORTABLE
);
2332 pc
= GET_U8_FROM_CDB(cmd
, LOG_SENSE_CDB_PC_OFFSET
);
2333 page_code
= pc
& LOG_SENSE_CDB_PAGE_CODE_MASK
;
2334 pc
= (pc
& LOG_SENSE_CDB_PC_MASK
) >> LOG_SENSE_CDB_PC_SHIFT
;
2335 if (pc
!= LOG_SENSE_CDB_PC_CUMULATIVE_VALUES
) {
2336 res
= nvme_trans_completion(hdr
, SAM_STAT_CHECK_CONDITION
,
2337 ILLEGAL_REQUEST
, SCSI_ASC_INVALID_CDB
,
2338 SCSI_ASCQ_CAUSE_NOT_REPORTABLE
);
2341 alloc_len
= GET_U16_FROM_CDB(cmd
, LOG_SENSE_CDB_ALLOC_LENGTH_OFFSET
);
2342 switch (page_code
) {
2343 case LOG_PAGE_SUPPORTED_LOG_PAGES_PAGE
:
2344 res
= nvme_trans_log_supp_pages(ns
, hdr
, alloc_len
);
2346 case LOG_PAGE_INFORMATIONAL_EXCEPTIONS_PAGE
:
2347 res
= nvme_trans_log_info_exceptions(ns
, hdr
, alloc_len
);
2349 case LOG_PAGE_TEMPERATURE_PAGE
:
2350 res
= nvme_trans_log_temperature(ns
, hdr
, alloc_len
);
2353 res
= nvme_trans_completion(hdr
, SAM_STAT_CHECK_CONDITION
,
2354 ILLEGAL_REQUEST
, SCSI_ASC_INVALID_CDB
,
2355 SCSI_ASCQ_CAUSE_NOT_REPORTABLE
);
2363 static int nvme_trans_mode_select(struct nvme_ns
*ns
, struct sg_io_hdr
*hdr
,
2366 int res
= SNTI_TRANSLATION_SUCCESS
;
2372 page_format
= GET_U8_FROM_CDB(cmd
, MODE_SELECT_CDB_PAGE_FORMAT_OFFSET
);
2373 page_format
&= MODE_SELECT_CDB_PAGE_FORMAT_MASK
;
2375 save_pages
= GET_U8_FROM_CDB(cmd
, MODE_SELECT_CDB_SAVE_PAGES_OFFSET
);
2376 save_pages
&= MODE_SELECT_CDB_SAVE_PAGES_MASK
;
2378 if (GET_OPCODE(cmd
) == MODE_SELECT
) {
2379 parm_list_len
= GET_U8_FROM_CDB(cmd
,
2380 MODE_SELECT_6_CDB_PARAM_LIST_LENGTH_OFFSET
);
2382 parm_list_len
= GET_U16_FROM_CDB(cmd
,
2383 MODE_SELECT_10_CDB_PARAM_LIST_LENGTH_OFFSET
);
2387 if (parm_list_len
!= 0) {
2389 * According to SPC-4 r24, a paramter list length field of 0
2390 * shall not be considered an error
2392 res
= nvme_trans_modesel_data(ns
, hdr
, cmd
, parm_list_len
,
2393 page_format
, save_pages
, cdb10
);
2399 static int nvme_trans_mode_sense(struct nvme_ns
*ns
, struct sg_io_hdr
*hdr
,
2402 int res
= SNTI_TRANSLATION_SUCCESS
;
2408 if (GET_OPCODE(cmd
) == MODE_SENSE
) {
2409 alloc_len
= GET_U8_FROM_CDB(cmd
, MODE_SENSE6_ALLOC_LEN_OFFSET
);
2411 alloc_len
= GET_U16_FROM_CDB(cmd
,
2412 MODE_SENSE10_ALLOC_LEN_OFFSET
);
2416 pc
= GET_U8_FROM_CDB(cmd
, MODE_SENSE_PAGE_CONTROL_OFFSET
) &
2417 MODE_SENSE_PAGE_CONTROL_MASK
;
2418 if (pc
!= MODE_SENSE_PC_CURRENT_VALUES
) {
2419 res
= nvme_trans_completion(hdr
, SAM_STAT_CHECK_CONDITION
,
2420 ILLEGAL_REQUEST
, SCSI_ASC_INVALID_CDB
,
2421 SCSI_ASCQ_CAUSE_NOT_REPORTABLE
);
2425 page_code
= GET_U8_FROM_CDB(cmd
, MODE_SENSE_PAGE_CODE_OFFSET
) &
2426 MODE_SENSE_PAGE_CODE_MASK
;
2427 switch (page_code
) {
2428 case MODE_PAGE_CACHING
:
2429 res
= nvme_trans_mode_page_create(ns
, hdr
, cmd
, alloc_len
,
2431 &nvme_trans_fill_caching_page
,
2432 MODE_PAGE_CACHING_LEN
);
2434 case MODE_PAGE_CONTROL
:
2435 res
= nvme_trans_mode_page_create(ns
, hdr
, cmd
, alloc_len
,
2437 &nvme_trans_fill_control_page
,
2438 MODE_PAGE_CONTROL_LEN
);
2440 case MODE_PAGE_POWER_CONDITION
:
2441 res
= nvme_trans_mode_page_create(ns
, hdr
, cmd
, alloc_len
,
2443 &nvme_trans_fill_pow_cnd_page
,
2444 MODE_PAGE_POW_CND_LEN
);
2446 case MODE_PAGE_INFO_EXCEP
:
2447 res
= nvme_trans_mode_page_create(ns
, hdr
, cmd
, alloc_len
,
2449 &nvme_trans_fill_inf_exc_page
,
2450 MODE_PAGE_INF_EXC_LEN
);
2452 case MODE_PAGE_RETURN_ALL
:
2453 res
= nvme_trans_mode_page_create(ns
, hdr
, cmd
, alloc_len
,
2455 &nvme_trans_fill_all_pages
,
2459 res
= nvme_trans_completion(hdr
, SAM_STAT_CHECK_CONDITION
,
2460 ILLEGAL_REQUEST
, SCSI_ASC_INVALID_CDB
,
2461 SCSI_ASCQ_CAUSE_NOT_REPORTABLE
);
2469 static int nvme_trans_read_capacity(struct nvme_ns
*ns
, struct sg_io_hdr
*hdr
,
2472 int res
= SNTI_TRANSLATION_SUCCESS
;
2474 u32 alloc_len
= READ_CAP_10_RESP_SIZE
;
2475 u32 resp_size
= READ_CAP_10_RESP_SIZE
;
2478 struct nvme_dev
*dev
= ns
->dev
;
2479 dma_addr_t dma_addr
;
2481 struct nvme_id_ns
*id_ns
;
2484 cdb16
= IS_READ_CAP_16(cmd
);
2486 alloc_len
= GET_READ_CAP_16_ALLOC_LENGTH(cmd
);
2487 resp_size
= READ_CAP_16_RESP_SIZE
;
2490 mem
= dma_alloc_coherent(&dev
->pci_dev
->dev
, sizeof(struct nvme_id_ns
),
2491 &dma_addr
, GFP_KERNEL
);
2496 /* nvme ns identify */
2497 nvme_sc
= nvme_identify(dev
, ns
->ns_id
, 0, dma_addr
);
2498 res
= nvme_trans_status_code(hdr
, nvme_sc
);
2507 response
= kzalloc(resp_size
, GFP_KERNEL
);
2508 if (response
== NULL
) {
2512 nvme_trans_fill_read_cap(response
, id_ns
, cdb16
);
2514 xfer_len
= min(alloc_len
, resp_size
);
2515 res
= nvme_trans_copy_to_user(hdr
, response
, xfer_len
);
2519 dma_free_coherent(&dev
->pci_dev
->dev
, sizeof(struct nvme_id_ns
), mem
,
2525 static int nvme_trans_report_luns(struct nvme_ns
*ns
, struct sg_io_hdr
*hdr
,
2528 int res
= SNTI_TRANSLATION_SUCCESS
;
2530 u32 alloc_len
, xfer_len
, resp_size
;
2533 struct nvme_dev
*dev
= ns
->dev
;
2534 dma_addr_t dma_addr
;
2536 struct nvme_id_ctrl
*id_ctrl
;
2537 u32 ll_length
, lun_id
;
2538 u8 lun_id_offset
= REPORT_LUNS_FIRST_LUN_OFFSET
;
2541 alloc_len
= GET_REPORT_LUNS_ALLOC_LENGTH(cmd
);
2542 select_report
= GET_U8_FROM_CDB(cmd
, REPORT_LUNS_SR_OFFSET
);
2544 if ((select_report
!= ALL_LUNS_RETURNED
) &&
2545 (select_report
!= ALL_WELL_KNOWN_LUNS_RETURNED
) &&
2546 (select_report
!= RESTRICTED_LUNS_RETURNED
)) {
2547 res
= nvme_trans_completion(hdr
, SAM_STAT_CHECK_CONDITION
,
2548 ILLEGAL_REQUEST
, SCSI_ASC_INVALID_CDB
,
2549 SCSI_ASCQ_CAUSE_NOT_REPORTABLE
);
2552 /* NVMe Controller Identify */
2553 mem
= dma_alloc_coherent(&dev
->pci_dev
->dev
,
2554 sizeof(struct nvme_id_ctrl
),
2555 &dma_addr
, GFP_KERNEL
);
2560 nvme_sc
= nvme_identify(dev
, 0, 1, dma_addr
);
2561 res
= nvme_trans_status_code(hdr
, nvme_sc
);
2569 ll_length
= le32_to_cpu(id_ctrl
->nn
) * LUN_ENTRY_SIZE
;
2570 resp_size
= ll_length
+ LUN_DATA_HEADER_SIZE
;
2572 if (alloc_len
< resp_size
) {
2573 res
= nvme_trans_completion(hdr
,
2574 SAM_STAT_CHECK_CONDITION
,
2575 ILLEGAL_REQUEST
, SCSI_ASC_INVALID_CDB
,
2576 SCSI_ASCQ_CAUSE_NOT_REPORTABLE
);
2580 response
= kzalloc(resp_size
, GFP_KERNEL
);
2581 if (response
== NULL
) {
2586 /* The first LUN ID will always be 0 per the SAM spec */
2587 for (lun_id
= 0; lun_id
< le32_to_cpu(id_ctrl
->nn
); lun_id
++) {
2589 * Set the LUN Id and then increment to the next LUN
2590 * location in the parameter data.
2592 __be64 tmp_id
= cpu_to_be64(lun_id
);
2593 memcpy(&response
[lun_id_offset
], &tmp_id
, sizeof(u64
));
2594 lun_id_offset
+= LUN_ENTRY_SIZE
;
2596 tmp_len
= cpu_to_be32(ll_length
);
2597 memcpy(response
, &tmp_len
, sizeof(u32
));
2600 xfer_len
= min(alloc_len
, resp_size
);
2601 res
= nvme_trans_copy_to_user(hdr
, response
, xfer_len
);
2605 dma_free_coherent(&dev
->pci_dev
->dev
, sizeof(struct nvme_id_ctrl
), mem
,
2611 static int nvme_trans_request_sense(struct nvme_ns
*ns
, struct sg_io_hdr
*hdr
,
2614 int res
= SNTI_TRANSLATION_SUCCESS
;
2615 u8 alloc_len
, xfer_len
, resp_size
;
2619 alloc_len
= GET_REQUEST_SENSE_ALLOC_LENGTH(cmd
);
2620 desc_format
= GET_U8_FROM_CDB(cmd
, REQUEST_SENSE_DESC_OFFSET
);
2621 desc_format
&= REQUEST_SENSE_DESC_MASK
;
2623 resp_size
= ((desc_format
) ? (DESC_FMT_SENSE_DATA_SIZE
) :
2624 (FIXED_FMT_SENSE_DATA_SIZE
));
2625 response
= kzalloc(resp_size
, GFP_KERNEL
);
2626 if (response
== NULL
) {
2631 if (desc_format
== DESCRIPTOR_FORMAT_SENSE_DATA_TYPE
) {
2632 /* Descriptor Format Sense Data */
2633 response
[0] = DESC_FORMAT_SENSE_DATA
;
2634 response
[1] = NO_SENSE
;
2635 /* TODO How is LOW POWER CONDITION ON handled? (byte 2) */
2636 response
[2] = SCSI_ASC_NO_SENSE
;
2637 response
[3] = SCSI_ASCQ_CAUSE_NOT_REPORTABLE
;
2638 /* SDAT_OVFL = 0 | Additional Sense Length = 0 */
2640 /* Fixed Format Sense Data */
2641 response
[0] = FIXED_SENSE_DATA
;
2642 /* Byte 1 = Obsolete */
2643 response
[2] = NO_SENSE
; /* FM, EOM, ILI, SDAT_OVFL = 0 */
2644 /* Bytes 3-6 - Information - set to zero */
2645 response
[7] = FIXED_SENSE_DATA_ADD_LENGTH
;
2646 /* Bytes 8-11 - Cmd Specific Information - set to zero */
2647 response
[12] = SCSI_ASC_NO_SENSE
;
2648 response
[13] = SCSI_ASCQ_CAUSE_NOT_REPORTABLE
;
2649 /* Byte 14 = Field Replaceable Unit Code = 0 */
2650 /* Bytes 15-17 - SKSV=0; Sense Key Specific = 0 */
2653 xfer_len
= min(alloc_len
, resp_size
);
2654 res
= nvme_trans_copy_to_user(hdr
, response
, xfer_len
);
2661 static int nvme_trans_security_protocol(struct nvme_ns
*ns
,
2662 struct sg_io_hdr
*hdr
,
2665 return nvme_trans_completion(hdr
, SAM_STAT_CHECK_CONDITION
,
2666 ILLEGAL_REQUEST
, SCSI_ASC_ILLEGAL_COMMAND
,
2667 SCSI_ASCQ_CAUSE_NOT_REPORTABLE
);
2670 static int nvme_trans_start_stop(struct nvme_ns
*ns
, struct sg_io_hdr
*hdr
,
2673 int res
= SNTI_TRANSLATION_SUCCESS
;
2675 struct nvme_command c
;
2676 u8 immed
, pcmod
, pc
, no_flush
, start
;
2678 immed
= GET_U8_FROM_CDB(cmd
, START_STOP_UNIT_CDB_IMMED_OFFSET
);
2679 pcmod
= GET_U8_FROM_CDB(cmd
, START_STOP_UNIT_CDB_POWER_COND_MOD_OFFSET
);
2680 pc
= GET_U8_FROM_CDB(cmd
, START_STOP_UNIT_CDB_POWER_COND_OFFSET
);
2681 no_flush
= GET_U8_FROM_CDB(cmd
, START_STOP_UNIT_CDB_NO_FLUSH_OFFSET
);
2682 start
= GET_U8_FROM_CDB(cmd
, START_STOP_UNIT_CDB_START_OFFSET
);
2684 immed
&= START_STOP_UNIT_CDB_IMMED_MASK
;
2685 pcmod
&= START_STOP_UNIT_CDB_POWER_COND_MOD_MASK
;
2686 pc
= (pc
& START_STOP_UNIT_CDB_POWER_COND_MASK
) >> NIBBLE_SHIFT
;
2687 no_flush
&= START_STOP_UNIT_CDB_NO_FLUSH_MASK
;
2688 start
&= START_STOP_UNIT_CDB_START_MASK
;
2691 res
= nvme_trans_completion(hdr
, SAM_STAT_CHECK_CONDITION
,
2692 ILLEGAL_REQUEST
, SCSI_ASC_INVALID_CDB
,
2693 SCSI_ASCQ_CAUSE_NOT_REPORTABLE
);
2695 if (no_flush
== 0) {
2696 /* Issue NVME FLUSH command prior to START STOP UNIT */
2697 memset(&c
, 0, sizeof(c
));
2698 c
.common
.opcode
= nvme_cmd_flush
;
2699 c
.common
.nsid
= cpu_to_le32(ns
->ns_id
);
2701 nvme_sc
= nvme_submit_io_cmd(ns
->dev
, ns
, &c
, NULL
);
2702 res
= nvme_trans_status_code(hdr
, nvme_sc
);
2710 /* Setup the expected power state transition */
2711 res
= nvme_trans_power_state(ns
, hdr
, pc
, pcmod
, start
);
2718 static int nvme_trans_synchronize_cache(struct nvme_ns
*ns
,
2719 struct sg_io_hdr
*hdr
, u8
*cmd
)
2721 int res
= SNTI_TRANSLATION_SUCCESS
;
2723 struct nvme_command c
;
2725 memset(&c
, 0, sizeof(c
));
2726 c
.common
.opcode
= nvme_cmd_flush
;
2727 c
.common
.nsid
= cpu_to_le32(ns
->ns_id
);
2729 nvme_sc
= nvme_submit_io_cmd(ns
->dev
, ns
, &c
, NULL
);
2731 res
= nvme_trans_status_code(hdr
, nvme_sc
);
2741 static int nvme_trans_format_unit(struct nvme_ns
*ns
, struct sg_io_hdr
*hdr
,
2744 int res
= SNTI_TRANSLATION_SUCCESS
;
2745 u8 parm_hdr_len
= 0;
2746 u8 nvme_pf_code
= 0;
2747 u8 format_prot_info
, long_list
, format_data
;
2749 format_prot_info
= GET_U8_FROM_CDB(cmd
,
2750 FORMAT_UNIT_CDB_FORMAT_PROT_INFO_OFFSET
);
2751 long_list
= GET_U8_FROM_CDB(cmd
, FORMAT_UNIT_CDB_LONG_LIST_OFFSET
);
2752 format_data
= GET_U8_FROM_CDB(cmd
, FORMAT_UNIT_CDB_FORMAT_DATA_OFFSET
);
2754 format_prot_info
= (format_prot_info
&
2755 FORMAT_UNIT_CDB_FORMAT_PROT_INFO_MASK
) >>
2756 FORMAT_UNIT_CDB_FORMAT_PROT_INFO_SHIFT
;
2757 long_list
&= FORMAT_UNIT_CDB_LONG_LIST_MASK
;
2758 format_data
&= FORMAT_UNIT_CDB_FORMAT_DATA_MASK
;
2760 if (format_data
!= 0) {
2761 if (format_prot_info
!= 0) {
2763 parm_hdr_len
= FORMAT_UNIT_SHORT_PARM_LIST_LEN
;
2765 parm_hdr_len
= FORMAT_UNIT_LONG_PARM_LIST_LEN
;
2767 } else if (format_data
== 0 && format_prot_info
!= 0) {
2768 res
= nvme_trans_completion(hdr
, SAM_STAT_CHECK_CONDITION
,
2769 ILLEGAL_REQUEST
, SCSI_ASC_INVALID_CDB
,
2770 SCSI_ASCQ_CAUSE_NOT_REPORTABLE
);
2774 /* Get parm header from data-in/out buffer */
2776 * According to the translation spec, the only fields in the parameter
2777 * list we are concerned with are in the header. So allocate only that.
2779 if (parm_hdr_len
> 0) {
2780 res
= nvme_trans_fmt_get_parm_header(hdr
, parm_hdr_len
,
2781 format_prot_info
, &nvme_pf_code
);
2782 if (res
!= SNTI_TRANSLATION_SUCCESS
)
2786 /* Attempt to activate any previously downloaded firmware image */
2787 res
= nvme_trans_send_fw_cmd(ns
, hdr
, nvme_admin_activate_fw
, 0, 0, 0);
2789 /* Determine Block size and count and send format command */
2790 res
= nvme_trans_fmt_set_blk_size_count(ns
, hdr
);
2791 if (res
!= SNTI_TRANSLATION_SUCCESS
)
2794 res
= nvme_trans_fmt_send_cmd(ns
, hdr
, nvme_pf_code
);
2800 static int nvme_trans_test_unit_ready(struct nvme_ns
*ns
,
2801 struct sg_io_hdr
*hdr
,
2804 int res
= SNTI_TRANSLATION_SUCCESS
;
2805 struct nvme_dev
*dev
= ns
->dev
;
2807 if (!(readl(&dev
->bar
->csts
) & NVME_CSTS_RDY
))
2808 res
= nvme_trans_completion(hdr
, SAM_STAT_CHECK_CONDITION
,
2809 NOT_READY
, SCSI_ASC_LUN_NOT_READY
,
2810 SCSI_ASCQ_CAUSE_NOT_REPORTABLE
);
2812 res
= nvme_trans_completion(hdr
, SAM_STAT_GOOD
, NO_SENSE
, 0, 0);
2817 static int nvme_trans_write_buffer(struct nvme_ns
*ns
, struct sg_io_hdr
*hdr
,
2820 int res
= SNTI_TRANSLATION_SUCCESS
;
2821 u32 buffer_offset
, parm_list_length
;
2825 GET_U24_FROM_CDB(cmd
, WRITE_BUFFER_CDB_PARM_LIST_LENGTH_OFFSET
);
2826 if (parm_list_length
% BYTES_TO_DWORDS
!= 0) {
2827 /* NVMe expects Firmware file to be a whole number of DWORDS */
2828 res
= nvme_trans_completion(hdr
, SAM_STAT_CHECK_CONDITION
,
2829 ILLEGAL_REQUEST
, SCSI_ASC_INVALID_CDB
,
2830 SCSI_ASCQ_CAUSE_NOT_REPORTABLE
);
2833 buffer_id
= GET_U8_FROM_CDB(cmd
, WRITE_BUFFER_CDB_BUFFER_ID_OFFSET
);
2834 if (buffer_id
> NVME_MAX_FIRMWARE_SLOT
) {
2835 res
= nvme_trans_completion(hdr
, SAM_STAT_CHECK_CONDITION
,
2836 ILLEGAL_REQUEST
, SCSI_ASC_INVALID_CDB
,
2837 SCSI_ASCQ_CAUSE_NOT_REPORTABLE
);
2840 mode
= GET_U8_FROM_CDB(cmd
, WRITE_BUFFER_CDB_MODE_OFFSET
) &
2841 WRITE_BUFFER_CDB_MODE_MASK
;
2843 GET_U24_FROM_CDB(cmd
, WRITE_BUFFER_CDB_BUFFER_OFFSET_OFFSET
);
2846 case DOWNLOAD_SAVE_ACTIVATE
:
2847 res
= nvme_trans_send_fw_cmd(ns
, hdr
, nvme_admin_download_fw
,
2848 parm_list_length
, buffer_offset
,
2850 if (res
!= SNTI_TRANSLATION_SUCCESS
)
2852 res
= nvme_trans_send_fw_cmd(ns
, hdr
, nvme_admin_activate_fw
,
2853 parm_list_length
, buffer_offset
,
2856 case DOWNLOAD_SAVE_DEFER_ACTIVATE
:
2857 res
= nvme_trans_send_fw_cmd(ns
, hdr
, nvme_admin_download_fw
,
2858 parm_list_length
, buffer_offset
,
2861 case ACTIVATE_DEFERRED_MICROCODE
:
2862 res
= nvme_trans_send_fw_cmd(ns
, hdr
, nvme_admin_activate_fw
,
2863 parm_list_length
, buffer_offset
,
2867 res
= nvme_trans_completion(hdr
, SAM_STAT_CHECK_CONDITION
,
2868 ILLEGAL_REQUEST
, SCSI_ASC_INVALID_CDB
,
2869 SCSI_ASCQ_CAUSE_NOT_REPORTABLE
);
2877 struct scsi_unmap_blk_desc
{
2883 struct scsi_unmap_parm_list
{
2884 __be16 unmap_data_len
;
2885 __be16 unmap_blk_desc_data_len
;
2887 struct scsi_unmap_blk_desc desc
[0];
2890 static int nvme_trans_unmap(struct nvme_ns
*ns
, struct sg_io_hdr
*hdr
,
2893 struct nvme_dev
*dev
= ns
->dev
;
2894 struct scsi_unmap_parm_list
*plist
;
2895 struct nvme_dsm_range
*range
;
2896 struct nvme_command c
;
2897 int i
, nvme_sc
, res
= -ENOMEM
;
2898 u16 ndesc
, list_len
;
2899 dma_addr_t dma_addr
;
2901 list_len
= GET_U16_FROM_CDB(cmd
, UNMAP_CDB_PARAM_LIST_LENGTH_OFFSET
);
2905 plist
= kmalloc(list_len
, GFP_KERNEL
);
2909 res
= nvme_trans_copy_from_user(hdr
, plist
, list_len
);
2910 if (res
!= SNTI_TRANSLATION_SUCCESS
)
2913 ndesc
= be16_to_cpu(plist
->unmap_blk_desc_data_len
) >> 4;
2914 if (!ndesc
|| ndesc
> 256) {
2919 range
= dma_alloc_coherent(&dev
->pci_dev
->dev
, ndesc
* sizeof(*range
),
2920 &dma_addr
, GFP_KERNEL
);
2924 for (i
= 0; i
< ndesc
; i
++) {
2925 range
[i
].nlb
= cpu_to_le32(be32_to_cpu(plist
->desc
[i
].nlb
));
2926 range
[i
].slba
= cpu_to_le64(be64_to_cpu(plist
->desc
[i
].slba
));
2930 memset(&c
, 0, sizeof(c
));
2931 c
.dsm
.opcode
= nvme_cmd_dsm
;
2932 c
.dsm
.nsid
= cpu_to_le32(ns
->ns_id
);
2933 c
.dsm
.prp1
= cpu_to_le64(dma_addr
);
2934 c
.dsm
.nr
= cpu_to_le32(ndesc
- 1);
2935 c
.dsm
.attributes
= cpu_to_le32(NVME_DSMGMT_AD
);
2937 nvme_sc
= nvme_submit_io_cmd(dev
, ns
, &c
, NULL
);
2938 res
= nvme_trans_status_code(hdr
, nvme_sc
);
2940 dma_free_coherent(&dev
->pci_dev
->dev
, ndesc
* sizeof(*range
),
2947 static int nvme_scsi_translate(struct nvme_ns
*ns
, struct sg_io_hdr
*hdr
)
2949 u8 cmd
[BLK_MAX_CDB
];
2951 unsigned int opcode
;
2953 if (hdr
->cmdp
== NULL
)
2955 if (copy_from_user(cmd
, hdr
->cmdp
, hdr
->cmd_len
))
2959 * Prime the hdr with good status for scsi commands that don't require
2960 * an nvme command for translation.
2962 retcode
= nvme_trans_status_code(hdr
, NVME_SC_SUCCESS
);
2973 retcode
= nvme_trans_io(ns
, hdr
, 0, cmd
);
2979 retcode
= nvme_trans_io(ns
, hdr
, 1, cmd
);
2982 retcode
= nvme_trans_inquiry(ns
, hdr
, cmd
);
2985 retcode
= nvme_trans_log_sense(ns
, hdr
, cmd
);
2988 case MODE_SELECT_10
:
2989 retcode
= nvme_trans_mode_select(ns
, hdr
, cmd
);
2993 retcode
= nvme_trans_mode_sense(ns
, hdr
, cmd
);
2996 retcode
= nvme_trans_read_capacity(ns
, hdr
, cmd
);
2998 case SERVICE_ACTION_IN_16
:
2999 if (IS_READ_CAP_16(cmd
))
3000 retcode
= nvme_trans_read_capacity(ns
, hdr
, cmd
);
3005 retcode
= nvme_trans_report_luns(ns
, hdr
, cmd
);
3008 retcode
= nvme_trans_request_sense(ns
, hdr
, cmd
);
3010 case SECURITY_PROTOCOL_IN
:
3011 case SECURITY_PROTOCOL_OUT
:
3012 retcode
= nvme_trans_security_protocol(ns
, hdr
, cmd
);
3015 retcode
= nvme_trans_start_stop(ns
, hdr
, cmd
);
3017 case SYNCHRONIZE_CACHE
:
3018 retcode
= nvme_trans_synchronize_cache(ns
, hdr
, cmd
);
3021 retcode
= nvme_trans_format_unit(ns
, hdr
, cmd
);
3023 case TEST_UNIT_READY
:
3024 retcode
= nvme_trans_test_unit_ready(ns
, hdr
, cmd
);
3027 retcode
= nvme_trans_write_buffer(ns
, hdr
, cmd
);
3030 retcode
= nvme_trans_unmap(ns
, hdr
, cmd
);
3034 retcode
= nvme_trans_completion(hdr
, SAM_STAT_CHECK_CONDITION
,
3035 ILLEGAL_REQUEST
, SCSI_ASC_ILLEGAL_COMMAND
,
3036 SCSI_ASCQ_CAUSE_NOT_REPORTABLE
);
3042 int nvme_sg_io(struct nvme_ns
*ns
, struct sg_io_hdr __user
*u_hdr
)
3044 struct sg_io_hdr hdr
;
3047 if (!capable(CAP_SYS_ADMIN
))
3049 if (copy_from_user(&hdr
, u_hdr
, sizeof(hdr
)))
3051 if (hdr
.interface_id
!= 'S')
3053 if (hdr
.cmd_len
> BLK_MAX_CDB
)
3056 retcode
= nvme_scsi_translate(ns
, &hdr
);
3060 retcode
= SNTI_TRANSLATION_SUCCESS
;
3061 if (copy_to_user(u_hdr
, &hdr
, sizeof(sg_io_hdr_t
)) > 0)
3067 int nvme_sg_get_version_num(int __user
*ip
)
3069 return put_user(sg_version_num
, ip
);