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5d0f6131 VV |
1 | /* |
2 | * NVM Express device driver | |
8757ad65 | 3 | * Copyright (c) 2011-2014, Intel Corporation. |
5d0f6131 VV |
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. | |
5d0f6131 VV |
13 | */ |
14 | ||
15 | /* | |
16 | * Refer to the SCSI-NVMe Translation spec for details on how | |
17 | * each command is translated. | |
18 | */ | |
19 | ||
5d0f6131 VV |
20 | #include <linux/bio.h> |
21 | #include <linux/bitops.h> | |
22 | #include <linux/blkdev.h> | |
320a3827 | 23 | #include <linux/compat.h> |
5d0f6131 VV |
24 | #include <linux/delay.h> |
25 | #include <linux/errno.h> | |
26 | #include <linux/fs.h> | |
27 | #include <linux/genhd.h> | |
28 | #include <linux/idr.h> | |
29 | #include <linux/init.h> | |
30 | #include <linux/interrupt.h> | |
31 | #include <linux/io.h> | |
32 | #include <linux/kdev_t.h> | |
33 | #include <linux/kthread.h> | |
34 | #include <linux/kernel.h> | |
35 | #include <linux/mm.h> | |
36 | #include <linux/module.h> | |
37 | #include <linux/moduleparam.h> | |
38 | #include <linux/pci.h> | |
39 | #include <linux/poison.h> | |
40 | #include <linux/sched.h> | |
41 | #include <linux/slab.h> | |
42 | #include <linux/types.h> | |
3726897e | 43 | #include <asm/unaligned.h> |
5d0f6131 VV |
44 | #include <scsi/sg.h> |
45 | #include <scsi/scsi.h> | |
46 | ||
f11bb3e2 | 47 | #include "nvme.h" |
5d0f6131 VV |
48 | |
49 | static int sg_version_num = 30534; /* 2 digits for each component */ | |
50 | ||
5d0f6131 VV |
51 | /* VPD Page Codes */ |
52 | #define VPD_SUPPORTED_PAGES 0x00 | |
53 | #define VPD_SERIAL_NUMBER 0x80 | |
54 | #define VPD_DEVICE_IDENTIFIERS 0x83 | |
55 | #define VPD_EXTENDED_INQUIRY 0x86 | |
7f749d9c | 56 | #define VPD_BLOCK_LIMITS 0xB0 |
5d0f6131 VV |
57 | #define VPD_BLOCK_DEV_CHARACTERISTICS 0xB1 |
58 | ||
3726897e | 59 | /* format unit paramter list offsets */ |
5d0f6131 VV |
60 | #define FORMAT_UNIT_SHORT_PARM_LIST_LEN 4 |
61 | #define FORMAT_UNIT_LONG_PARM_LIST_LEN 8 | |
62 | #define FORMAT_UNIT_PROT_INT_OFFSET 3 | |
63 | #define FORMAT_UNIT_PROT_FIELD_USAGE_OFFSET 0 | |
64 | #define FORMAT_UNIT_PROT_FIELD_USAGE_MASK 0x07 | |
65 | ||
66 | /* Misc. defines */ | |
5d0f6131 VV |
67 | #define FIXED_SENSE_DATA 0x70 |
68 | #define DESC_FORMAT_SENSE_DATA 0x72 | |
69 | #define FIXED_SENSE_DATA_ADD_LENGTH 10 | |
70 | #define LUN_ENTRY_SIZE 8 | |
71 | #define LUN_DATA_HEADER_SIZE 8 | |
72 | #define ALL_LUNS_RETURNED 0x02 | |
73 | #define ALL_WELL_KNOWN_LUNS_RETURNED 0x01 | |
74 | #define RESTRICTED_LUNS_RETURNED 0x00 | |
75 | #define NVME_POWER_STATE_START_VALID 0x00 | |
76 | #define NVME_POWER_STATE_ACTIVE 0x01 | |
77 | #define NVME_POWER_STATE_IDLE 0x02 | |
78 | #define NVME_POWER_STATE_STANDBY 0x03 | |
79 | #define NVME_POWER_STATE_LU_CONTROL 0x07 | |
80 | #define POWER_STATE_0 0 | |
81 | #define POWER_STATE_1 1 | |
82 | #define POWER_STATE_2 2 | |
83 | #define POWER_STATE_3 3 | |
84 | #define DOWNLOAD_SAVE_ACTIVATE 0x05 | |
85 | #define DOWNLOAD_SAVE_DEFER_ACTIVATE 0x0E | |
86 | #define ACTIVATE_DEFERRED_MICROCODE 0x0F | |
87 | #define FORMAT_UNIT_IMMED_MASK 0x2 | |
88 | #define FORMAT_UNIT_IMMED_OFFSET 1 | |
89 | #define KELVIN_TEMP_FACTOR 273 | |
90 | #define FIXED_FMT_SENSE_DATA_SIZE 18 | |
91 | #define DESC_FMT_SENSE_DATA_SIZE 8 | |
92 | ||
93 | /* SCSI/NVMe defines and bit masks */ | |
94 | #define INQ_STANDARD_INQUIRY_PAGE 0x00 | |
95 | #define INQ_SUPPORTED_VPD_PAGES_PAGE 0x00 | |
96 | #define INQ_UNIT_SERIAL_NUMBER_PAGE 0x80 | |
97 | #define INQ_DEVICE_IDENTIFICATION_PAGE 0x83 | |
98 | #define INQ_EXTENDED_INQUIRY_DATA_PAGE 0x86 | |
7f749d9c | 99 | #define INQ_BDEV_LIMITS_PAGE 0xB0 |
5d0f6131 VV |
100 | #define INQ_BDEV_CHARACTERISTICS_PAGE 0xB1 |
101 | #define INQ_SERIAL_NUMBER_LENGTH 0x14 | |
7f749d9c | 102 | #define INQ_NUM_SUPPORTED_VPD_PAGES 6 |
5d0f6131 VV |
103 | #define VERSION_SPC_4 0x06 |
104 | #define ACA_UNSUPPORTED 0 | |
105 | #define STANDARD_INQUIRY_LENGTH 36 | |
106 | #define ADDITIONAL_STD_INQ_LENGTH 31 | |
107 | #define EXTENDED_INQUIRY_DATA_PAGE_LENGTH 0x3C | |
108 | #define RESERVED_FIELD 0 | |
109 | ||
5d0f6131 VV |
110 | /* Mode Sense/Select defines */ |
111 | #define MODE_PAGE_INFO_EXCEP 0x1C | |
112 | #define MODE_PAGE_CACHING 0x08 | |
113 | #define MODE_PAGE_CONTROL 0x0A | |
114 | #define MODE_PAGE_POWER_CONDITION 0x1A | |
115 | #define MODE_PAGE_RETURN_ALL 0x3F | |
116 | #define MODE_PAGE_BLK_DES_LEN 0x08 | |
117 | #define MODE_PAGE_LLBAA_BLK_DES_LEN 0x10 | |
118 | #define MODE_PAGE_CACHING_LEN 0x14 | |
119 | #define MODE_PAGE_CONTROL_LEN 0x0C | |
120 | #define MODE_PAGE_POW_CND_LEN 0x28 | |
121 | #define MODE_PAGE_INF_EXC_LEN 0x0C | |
122 | #define MODE_PAGE_ALL_LEN 0x54 | |
123 | #define MODE_SENSE6_MPH_SIZE 4 | |
5d0f6131 VV |
124 | #define MODE_SENSE_PAGE_CONTROL_MASK 0xC0 |
125 | #define MODE_SENSE_PAGE_CODE_OFFSET 2 | |
126 | #define MODE_SENSE_PAGE_CODE_MASK 0x3F | |
5d0f6131 VV |
127 | #define MODE_SENSE_LLBAA_MASK 0x10 |
128 | #define MODE_SENSE_LLBAA_SHIFT 4 | |
5d0f6131 VV |
129 | #define MODE_SENSE_DBD_MASK 8 |
130 | #define MODE_SENSE_DBD_SHIFT 3 | |
131 | #define MODE_SENSE10_MPH_SIZE 8 | |
5d0f6131 VV |
132 | #define MODE_SELECT_CDB_PAGE_FORMAT_MASK 0x10 |
133 | #define MODE_SELECT_CDB_SAVE_PAGES_MASK 0x1 | |
134 | #define MODE_SELECT_6_BD_OFFSET 3 | |
135 | #define MODE_SELECT_10_BD_OFFSET 6 | |
136 | #define MODE_SELECT_10_LLBAA_OFFSET 4 | |
137 | #define MODE_SELECT_10_LLBAA_MASK 1 | |
138 | #define MODE_SELECT_6_MPH_SIZE 4 | |
139 | #define MODE_SELECT_10_MPH_SIZE 8 | |
140 | #define CACHING_MODE_PAGE_WCE_MASK 0x04 | |
141 | #define MODE_SENSE_BLK_DESC_ENABLED 0 | |
142 | #define MODE_SENSE_BLK_DESC_COUNT 1 | |
143 | #define MODE_SELECT_PAGE_CODE_MASK 0x3F | |
144 | #define SHORT_DESC_BLOCK 8 | |
145 | #define LONG_DESC_BLOCK 16 | |
146 | #define MODE_PAGE_POW_CND_LEN_FIELD 0x26 | |
147 | #define MODE_PAGE_INF_EXC_LEN_FIELD 0x0A | |
148 | #define MODE_PAGE_CACHING_LEN_FIELD 0x12 | |
149 | #define MODE_PAGE_CONTROL_LEN_FIELD 0x0A | |
150 | #define MODE_SENSE_PC_CURRENT_VALUES 0 | |
151 | ||
152 | /* Log Sense defines */ | |
153 | #define LOG_PAGE_SUPPORTED_LOG_PAGES_PAGE 0x00 | |
154 | #define LOG_PAGE_SUPPORTED_LOG_PAGES_LENGTH 0x07 | |
155 | #define LOG_PAGE_INFORMATIONAL_EXCEPTIONS_PAGE 0x2F | |
156 | #define LOG_PAGE_TEMPERATURE_PAGE 0x0D | |
5d0f6131 | 157 | #define LOG_SENSE_CDB_SP_NOT_ENABLED 0 |
5d0f6131 VV |
158 | #define LOG_SENSE_CDB_PC_MASK 0xC0 |
159 | #define LOG_SENSE_CDB_PC_SHIFT 6 | |
160 | #define LOG_SENSE_CDB_PC_CUMULATIVE_VALUES 1 | |
161 | #define LOG_SENSE_CDB_PAGE_CODE_MASK 0x3F | |
5d0f6131 VV |
162 | #define REMAINING_INFO_EXCP_PAGE_LENGTH 0x8 |
163 | #define LOG_INFO_EXCP_PAGE_LENGTH 0xC | |
164 | #define REMAINING_TEMP_PAGE_LENGTH 0xC | |
165 | #define LOG_TEMP_PAGE_LENGTH 0x10 | |
166 | #define LOG_TEMP_UNKNOWN 0xFF | |
167 | #define SUPPORTED_LOG_PAGES_PAGE_LENGTH 0x3 | |
168 | ||
169 | /* Read Capacity defines */ | |
170 | #define READ_CAP_10_RESP_SIZE 8 | |
171 | #define READ_CAP_16_RESP_SIZE 32 | |
172 | ||
173 | /* NVMe Namespace and Command Defines */ | |
5d0f6131 VV |
174 | #define BYTES_TO_DWORDS 4 |
175 | #define NVME_MAX_FIRMWARE_SLOT 7 | |
176 | ||
177 | /* Report LUNs defines */ | |
178 | #define REPORT_LUNS_FIRST_LUN_OFFSET 8 | |
179 | ||
180 | /* SCSI ADDITIONAL SENSE Codes */ | |
181 | ||
182 | #define SCSI_ASC_NO_SENSE 0x00 | |
183 | #define SCSI_ASC_PERIPHERAL_DEV_WRITE_FAULT 0x03 | |
184 | #define SCSI_ASC_LUN_NOT_READY 0x04 | |
185 | #define SCSI_ASC_WARNING 0x0B | |
186 | #define SCSI_ASC_LOG_BLOCK_GUARD_CHECK_FAILED 0x10 | |
187 | #define SCSI_ASC_LOG_BLOCK_APPTAG_CHECK_FAILED 0x10 | |
188 | #define SCSI_ASC_LOG_BLOCK_REFTAG_CHECK_FAILED 0x10 | |
189 | #define SCSI_ASC_UNRECOVERED_READ_ERROR 0x11 | |
190 | #define SCSI_ASC_MISCOMPARE_DURING_VERIFY 0x1D | |
191 | #define SCSI_ASC_ACCESS_DENIED_INVALID_LUN_ID 0x20 | |
192 | #define SCSI_ASC_ILLEGAL_COMMAND 0x20 | |
193 | #define SCSI_ASC_ILLEGAL_BLOCK 0x21 | |
194 | #define SCSI_ASC_INVALID_CDB 0x24 | |
195 | #define SCSI_ASC_INVALID_LUN 0x25 | |
196 | #define SCSI_ASC_INVALID_PARAMETER 0x26 | |
197 | #define SCSI_ASC_FORMAT_COMMAND_FAILED 0x31 | |
198 | #define SCSI_ASC_INTERNAL_TARGET_FAILURE 0x44 | |
199 | ||
200 | /* SCSI ADDITIONAL SENSE Code Qualifiers */ | |
201 | ||
202 | #define SCSI_ASCQ_CAUSE_NOT_REPORTABLE 0x00 | |
203 | #define SCSI_ASCQ_FORMAT_COMMAND_FAILED 0x01 | |
204 | #define SCSI_ASCQ_LOG_BLOCK_GUARD_CHECK_FAILED 0x01 | |
205 | #define SCSI_ASCQ_LOG_BLOCK_APPTAG_CHECK_FAILED 0x02 | |
206 | #define SCSI_ASCQ_LOG_BLOCK_REFTAG_CHECK_FAILED 0x03 | |
207 | #define SCSI_ASCQ_FORMAT_IN_PROGRESS 0x04 | |
208 | #define SCSI_ASCQ_POWER_LOSS_EXPECTED 0x08 | |
209 | #define SCSI_ASCQ_INVALID_LUN_ID 0x09 | |
210 | ||
3726897e CH |
211 | /* copied from drivers/usb/gadget/function/storage_common.h */ |
212 | static inline u32 get_unaligned_be24(u8 *buf) | |
213 | { | |
214 | return 0xffffff & (u32) get_unaligned_be32(buf - 1); | |
215 | } | |
5d0f6131 VV |
216 | |
217 | /* Struct to gather data that needs to be extracted from a SCSI CDB. | |
218 | Not conforming to any particular CDB variant, but compatible with all. */ | |
219 | ||
220 | struct nvme_trans_io_cdb { | |
221 | u8 fua; | |
222 | u8 prot_info; | |
223 | u64 lba; | |
224 | u32 xfer_len; | |
225 | }; | |
226 | ||
227 | ||
228 | /* Internal Helper Functions */ | |
229 | ||
230 | ||
231 | /* Copy data to userspace memory */ | |
232 | ||
233 | static int nvme_trans_copy_to_user(struct sg_io_hdr *hdr, void *from, | |
234 | unsigned long n) | |
235 | { | |
5d0f6131 VV |
236 | int i; |
237 | void *index = from; | |
238 | size_t remaining = n; | |
239 | size_t xfer_len; | |
240 | ||
241 | if (hdr->iovec_count > 0) { | |
8741ee4c | 242 | struct sg_iovec sgl; |
5d0f6131 VV |
243 | |
244 | for (i = 0; i < hdr->iovec_count; i++) { | |
e61b0a86 | 245 | if (copy_from_user(&sgl, hdr->dxferp + |
8741ee4c | 246 | i * sizeof(struct sg_iovec), |
e61b0a86 | 247 | sizeof(struct sg_iovec))) |
8741ee4c VV |
248 | return -EFAULT; |
249 | xfer_len = min(remaining, sgl.iov_len); | |
e61b0a86 CH |
250 | if (copy_to_user(sgl.iov_base, index, xfer_len)) |
251 | return -EFAULT; | |
252 | ||
5d0f6131 VV |
253 | index += xfer_len; |
254 | remaining -= xfer_len; | |
255 | if (remaining == 0) | |
256 | break; | |
257 | } | |
e61b0a86 | 258 | return 0; |
5d0f6131 | 259 | } |
e61b0a86 CH |
260 | |
261 | if (copy_to_user(hdr->dxferp, from, n)) | |
262 | return -EFAULT; | |
263 | return 0; | |
5d0f6131 VV |
264 | } |
265 | ||
266 | /* Copy data from userspace memory */ | |
267 | ||
268 | static int nvme_trans_copy_from_user(struct sg_io_hdr *hdr, void *to, | |
269 | unsigned long n) | |
270 | { | |
5d0f6131 VV |
271 | int i; |
272 | void *index = to; | |
273 | size_t remaining = n; | |
274 | size_t xfer_len; | |
275 | ||
276 | if (hdr->iovec_count > 0) { | |
8741ee4c | 277 | struct sg_iovec sgl; |
5d0f6131 VV |
278 | |
279 | for (i = 0; i < hdr->iovec_count; i++) { | |
e61b0a86 | 280 | if (copy_from_user(&sgl, hdr->dxferp + |
8741ee4c | 281 | i * sizeof(struct sg_iovec), |
e61b0a86 | 282 | sizeof(struct sg_iovec))) |
8741ee4c VV |
283 | return -EFAULT; |
284 | xfer_len = min(remaining, sgl.iov_len); | |
e61b0a86 CH |
285 | if (copy_from_user(index, sgl.iov_base, xfer_len)) |
286 | return -EFAULT; | |
5d0f6131 VV |
287 | index += xfer_len; |
288 | remaining -= xfer_len; | |
289 | if (remaining == 0) | |
290 | break; | |
291 | } | |
e61b0a86 | 292 | return 0; |
5d0f6131 VV |
293 | } |
294 | ||
e61b0a86 CH |
295 | if (copy_from_user(to, hdr->dxferp, n)) |
296 | return -EFAULT; | |
297 | return 0; | |
5d0f6131 VV |
298 | } |
299 | ||
300 | /* Status/Sense Buffer Writeback */ | |
301 | ||
302 | static int nvme_trans_completion(struct sg_io_hdr *hdr, u8 status, u8 sense_key, | |
303 | u8 asc, u8 ascq) | |
304 | { | |
5d0f6131 VV |
305 | u8 xfer_len; |
306 | u8 resp[DESC_FMT_SENSE_DATA_SIZE]; | |
307 | ||
308 | if (scsi_status_is_good(status)) { | |
309 | hdr->status = SAM_STAT_GOOD; | |
310 | hdr->masked_status = GOOD; | |
311 | hdr->host_status = DID_OK; | |
312 | hdr->driver_status = DRIVER_OK; | |
313 | hdr->sb_len_wr = 0; | |
314 | } else { | |
315 | hdr->status = status; | |
316 | hdr->masked_status = status >> 1; | |
317 | hdr->host_status = DID_OK; | |
318 | hdr->driver_status = DRIVER_OK; | |
319 | ||
320 | memset(resp, 0, DESC_FMT_SENSE_DATA_SIZE); | |
321 | resp[0] = DESC_FORMAT_SENSE_DATA; | |
322 | resp[1] = sense_key; | |
323 | resp[2] = asc; | |
324 | resp[3] = ascq; | |
325 | ||
326 | xfer_len = min_t(u8, hdr->mx_sb_len, DESC_FMT_SENSE_DATA_SIZE); | |
327 | hdr->sb_len_wr = xfer_len; | |
8741ee4c | 328 | if (copy_to_user(hdr->sbp, resp, xfer_len) > 0) |
e61b0a86 | 329 | return -EFAULT; |
5d0f6131 VV |
330 | } |
331 | ||
e61b0a86 | 332 | return 0; |
5d0f6131 VV |
333 | } |
334 | ||
e61b0a86 CH |
335 | /* |
336 | * Take a status code from a lowlevel routine, and if it was a positive NVMe | |
337 | * error code update the sense data based on it. In either case the passed | |
338 | * in value is returned again, unless an -EFAULT from copy_to_user overrides | |
339 | * it. | |
340 | */ | |
5d0f6131 VV |
341 | static int nvme_trans_status_code(struct sg_io_hdr *hdr, int nvme_sc) |
342 | { | |
343 | u8 status, sense_key, asc, ascq; | |
e61b0a86 | 344 | int res; |
5d0f6131 VV |
345 | |
346 | /* For non-nvme (Linux) errors, simply return the error code */ | |
347 | if (nvme_sc < 0) | |
348 | return nvme_sc; | |
349 | ||
350 | /* Mask DNR, More, and reserved fields */ | |
e61b0a86 | 351 | switch (nvme_sc & 0x7FF) { |
5d0f6131 VV |
352 | /* Generic Command Status */ |
353 | case NVME_SC_SUCCESS: | |
354 | status = SAM_STAT_GOOD; | |
355 | sense_key = NO_SENSE; | |
356 | asc = SCSI_ASC_NO_SENSE; | |
357 | ascq = SCSI_ASCQ_CAUSE_NOT_REPORTABLE; | |
358 | break; | |
359 | case NVME_SC_INVALID_OPCODE: | |
360 | status = SAM_STAT_CHECK_CONDITION; | |
361 | sense_key = ILLEGAL_REQUEST; | |
362 | asc = SCSI_ASC_ILLEGAL_COMMAND; | |
363 | ascq = SCSI_ASCQ_CAUSE_NOT_REPORTABLE; | |
364 | break; | |
365 | case NVME_SC_INVALID_FIELD: | |
366 | status = SAM_STAT_CHECK_CONDITION; | |
367 | sense_key = ILLEGAL_REQUEST; | |
368 | asc = SCSI_ASC_INVALID_CDB; | |
369 | ascq = SCSI_ASCQ_CAUSE_NOT_REPORTABLE; | |
370 | break; | |
371 | case NVME_SC_DATA_XFER_ERROR: | |
372 | status = SAM_STAT_CHECK_CONDITION; | |
373 | sense_key = MEDIUM_ERROR; | |
374 | asc = SCSI_ASC_NO_SENSE; | |
375 | ascq = SCSI_ASCQ_CAUSE_NOT_REPORTABLE; | |
376 | break; | |
377 | case NVME_SC_POWER_LOSS: | |
378 | status = SAM_STAT_TASK_ABORTED; | |
379 | sense_key = ABORTED_COMMAND; | |
380 | asc = SCSI_ASC_WARNING; | |
381 | ascq = SCSI_ASCQ_POWER_LOSS_EXPECTED; | |
382 | break; | |
383 | case NVME_SC_INTERNAL: | |
384 | status = SAM_STAT_CHECK_CONDITION; | |
385 | sense_key = HARDWARE_ERROR; | |
386 | asc = SCSI_ASC_INTERNAL_TARGET_FAILURE; | |
387 | ascq = SCSI_ASCQ_CAUSE_NOT_REPORTABLE; | |
388 | break; | |
389 | case NVME_SC_ABORT_REQ: | |
390 | status = SAM_STAT_TASK_ABORTED; | |
391 | sense_key = ABORTED_COMMAND; | |
392 | asc = SCSI_ASC_NO_SENSE; | |
393 | ascq = SCSI_ASCQ_CAUSE_NOT_REPORTABLE; | |
394 | break; | |
395 | case NVME_SC_ABORT_QUEUE: | |
396 | status = SAM_STAT_TASK_ABORTED; | |
397 | sense_key = ABORTED_COMMAND; | |
398 | asc = SCSI_ASC_NO_SENSE; | |
399 | ascq = SCSI_ASCQ_CAUSE_NOT_REPORTABLE; | |
400 | break; | |
401 | case NVME_SC_FUSED_FAIL: | |
402 | status = SAM_STAT_TASK_ABORTED; | |
403 | sense_key = ABORTED_COMMAND; | |
404 | asc = SCSI_ASC_NO_SENSE; | |
405 | ascq = SCSI_ASCQ_CAUSE_NOT_REPORTABLE; | |
406 | break; | |
407 | case NVME_SC_FUSED_MISSING: | |
408 | status = SAM_STAT_TASK_ABORTED; | |
409 | sense_key = ABORTED_COMMAND; | |
410 | asc = SCSI_ASC_NO_SENSE; | |
411 | ascq = SCSI_ASCQ_CAUSE_NOT_REPORTABLE; | |
412 | break; | |
413 | case NVME_SC_INVALID_NS: | |
414 | status = SAM_STAT_CHECK_CONDITION; | |
415 | sense_key = ILLEGAL_REQUEST; | |
416 | asc = SCSI_ASC_ACCESS_DENIED_INVALID_LUN_ID; | |
417 | ascq = SCSI_ASCQ_INVALID_LUN_ID; | |
418 | break; | |
419 | case NVME_SC_LBA_RANGE: | |
420 | status = SAM_STAT_CHECK_CONDITION; | |
421 | sense_key = ILLEGAL_REQUEST; | |
422 | asc = SCSI_ASC_ILLEGAL_BLOCK; | |
423 | ascq = SCSI_ASCQ_CAUSE_NOT_REPORTABLE; | |
424 | break; | |
425 | case NVME_SC_CAP_EXCEEDED: | |
426 | status = SAM_STAT_CHECK_CONDITION; | |
427 | sense_key = MEDIUM_ERROR; | |
428 | asc = SCSI_ASC_NO_SENSE; | |
429 | ascq = SCSI_ASCQ_CAUSE_NOT_REPORTABLE; | |
430 | break; | |
431 | case NVME_SC_NS_NOT_READY: | |
432 | status = SAM_STAT_CHECK_CONDITION; | |
433 | sense_key = NOT_READY; | |
434 | asc = SCSI_ASC_LUN_NOT_READY; | |
435 | ascq = SCSI_ASCQ_CAUSE_NOT_REPORTABLE; | |
436 | break; | |
437 | ||
438 | /* Command Specific Status */ | |
439 | case NVME_SC_INVALID_FORMAT: | |
440 | status = SAM_STAT_CHECK_CONDITION; | |
441 | sense_key = ILLEGAL_REQUEST; | |
442 | asc = SCSI_ASC_FORMAT_COMMAND_FAILED; | |
443 | ascq = SCSI_ASCQ_FORMAT_COMMAND_FAILED; | |
444 | break; | |
445 | case NVME_SC_BAD_ATTRIBUTES: | |
446 | status = SAM_STAT_CHECK_CONDITION; | |
447 | sense_key = ILLEGAL_REQUEST; | |
448 | asc = SCSI_ASC_INVALID_CDB; | |
449 | ascq = SCSI_ASCQ_CAUSE_NOT_REPORTABLE; | |
450 | break; | |
451 | ||
452 | /* Media Errors */ | |
453 | case NVME_SC_WRITE_FAULT: | |
454 | status = SAM_STAT_CHECK_CONDITION; | |
455 | sense_key = MEDIUM_ERROR; | |
456 | asc = SCSI_ASC_PERIPHERAL_DEV_WRITE_FAULT; | |
457 | ascq = SCSI_ASCQ_CAUSE_NOT_REPORTABLE; | |
458 | break; | |
459 | case NVME_SC_READ_ERROR: | |
460 | status = SAM_STAT_CHECK_CONDITION; | |
461 | sense_key = MEDIUM_ERROR; | |
462 | asc = SCSI_ASC_UNRECOVERED_READ_ERROR; | |
463 | ascq = SCSI_ASCQ_CAUSE_NOT_REPORTABLE; | |
464 | break; | |
465 | case NVME_SC_GUARD_CHECK: | |
466 | status = SAM_STAT_CHECK_CONDITION; | |
467 | sense_key = MEDIUM_ERROR; | |
468 | asc = SCSI_ASC_LOG_BLOCK_GUARD_CHECK_FAILED; | |
469 | ascq = SCSI_ASCQ_LOG_BLOCK_GUARD_CHECK_FAILED; | |
470 | break; | |
471 | case NVME_SC_APPTAG_CHECK: | |
472 | status = SAM_STAT_CHECK_CONDITION; | |
473 | sense_key = MEDIUM_ERROR; | |
474 | asc = SCSI_ASC_LOG_BLOCK_APPTAG_CHECK_FAILED; | |
475 | ascq = SCSI_ASCQ_LOG_BLOCK_APPTAG_CHECK_FAILED; | |
476 | break; | |
477 | case NVME_SC_REFTAG_CHECK: | |
478 | status = SAM_STAT_CHECK_CONDITION; | |
479 | sense_key = MEDIUM_ERROR; | |
480 | asc = SCSI_ASC_LOG_BLOCK_REFTAG_CHECK_FAILED; | |
481 | ascq = SCSI_ASCQ_LOG_BLOCK_REFTAG_CHECK_FAILED; | |
482 | break; | |
483 | case NVME_SC_COMPARE_FAILED: | |
484 | status = SAM_STAT_CHECK_CONDITION; | |
485 | sense_key = MISCOMPARE; | |
486 | asc = SCSI_ASC_MISCOMPARE_DURING_VERIFY; | |
487 | ascq = SCSI_ASCQ_CAUSE_NOT_REPORTABLE; | |
488 | break; | |
489 | case NVME_SC_ACCESS_DENIED: | |
490 | status = SAM_STAT_CHECK_CONDITION; | |
491 | sense_key = ILLEGAL_REQUEST; | |
492 | asc = SCSI_ASC_ACCESS_DENIED_INVALID_LUN_ID; | |
493 | ascq = SCSI_ASCQ_INVALID_LUN_ID; | |
494 | break; | |
495 | ||
496 | /* Unspecified/Default */ | |
497 | case NVME_SC_CMDID_CONFLICT: | |
498 | case NVME_SC_CMD_SEQ_ERROR: | |
499 | case NVME_SC_CQ_INVALID: | |
500 | case NVME_SC_QID_INVALID: | |
501 | case NVME_SC_QUEUE_SIZE: | |
502 | case NVME_SC_ABORT_LIMIT: | |
503 | case NVME_SC_ABORT_MISSING: | |
504 | case NVME_SC_ASYNC_LIMIT: | |
505 | case NVME_SC_FIRMWARE_SLOT: | |
506 | case NVME_SC_FIRMWARE_IMAGE: | |
507 | case NVME_SC_INVALID_VECTOR: | |
508 | case NVME_SC_INVALID_LOG_PAGE: | |
509 | default: | |
510 | status = SAM_STAT_CHECK_CONDITION; | |
511 | sense_key = ILLEGAL_REQUEST; | |
512 | asc = SCSI_ASC_NO_SENSE; | |
513 | ascq = SCSI_ASCQ_CAUSE_NOT_REPORTABLE; | |
514 | break; | |
515 | } | |
516 | ||
517 | res = nvme_trans_completion(hdr, status, sense_key, asc, ascq); | |
e61b0a86 | 518 | return res ? res : nvme_sc; |
5d0f6131 VV |
519 | } |
520 | ||
521 | /* INQUIRY Helper Functions */ | |
522 | ||
523 | static int nvme_trans_standard_inquiry_page(struct nvme_ns *ns, | |
524 | struct sg_io_hdr *hdr, u8 *inq_response, | |
525 | int alloc_len) | |
526 | { | |
1c63dc66 | 527 | struct nvme_ctrl *ctrl = ns->ctrl; |
5d0f6131 | 528 | struct nvme_id_ns *id_ns; |
e61b0a86 | 529 | int res; |
5d0f6131 VV |
530 | int nvme_sc; |
531 | int xfer_len; | |
532 | u8 resp_data_format = 0x02; | |
533 | u8 protect; | |
534 | u8 cmdque = 0x01 << 1; | |
1c63dc66 | 535 | u8 fw_offset = sizeof(ctrl->firmware_rev); |
5d0f6131 | 536 | |
5d0f6131 | 537 | /* nvme ns identify - use DPS value for PROTECT field */ |
1c63dc66 | 538 | nvme_sc = nvme_identify_ns(ctrl, ns->ns_id, &id_ns); |
5d0f6131 | 539 | res = nvme_trans_status_code(hdr, nvme_sc); |
5d0f6131 | 540 | if (res) |
d29ec824 | 541 | return res; |
e61b0a86 | 542 | |
d29ec824 CH |
543 | if (id_ns->dps) |
544 | protect = 0x01; | |
545 | else | |
546 | protect = 0; | |
547 | kfree(id_ns); | |
5d0f6131 VV |
548 | |
549 | memset(inq_response, 0, STANDARD_INQUIRY_LENGTH); | |
550 | inq_response[2] = VERSION_SPC_4; | |
551 | inq_response[3] = resp_data_format; /*normaca=0 | hisup=0 */ | |
552 | inq_response[4] = ADDITIONAL_STD_INQ_LENGTH; | |
553 | inq_response[5] = protect; /* sccs=0 | acc=0 | tpgs=0 | pc3=0 */ | |
554 | inq_response[7] = cmdque; /* wbus16=0 | sync=0 | vs=0 */ | |
555 | strncpy(&inq_response[8], "NVMe ", 8); | |
1c63dc66 | 556 | strncpy(&inq_response[16], ctrl->model, 16); |
dedf4b15 | 557 | |
1c63dc66 | 558 | while (ctrl->firmware_rev[fw_offset - 1] == ' ' && fw_offset > 4) |
dedf4b15 KB |
559 | fw_offset--; |
560 | fw_offset -= 4; | |
1c63dc66 | 561 | strncpy(&inq_response[32], ctrl->firmware_rev + fw_offset, 4); |
5d0f6131 VV |
562 | |
563 | xfer_len = min(alloc_len, STANDARD_INQUIRY_LENGTH); | |
d29ec824 | 564 | return nvme_trans_copy_to_user(hdr, inq_response, xfer_len); |
5d0f6131 VV |
565 | } |
566 | ||
567 | static int nvme_trans_supported_vpd_pages(struct nvme_ns *ns, | |
568 | struct sg_io_hdr *hdr, u8 *inq_response, | |
569 | int alloc_len) | |
570 | { | |
5d0f6131 VV |
571 | int xfer_len; |
572 | ||
573 | memset(inq_response, 0, STANDARD_INQUIRY_LENGTH); | |
574 | inq_response[1] = INQ_SUPPORTED_VPD_PAGES_PAGE; /* Page Code */ | |
575 | inq_response[3] = INQ_NUM_SUPPORTED_VPD_PAGES; /* Page Length */ | |
576 | inq_response[4] = INQ_SUPPORTED_VPD_PAGES_PAGE; | |
577 | inq_response[5] = INQ_UNIT_SERIAL_NUMBER_PAGE; | |
578 | inq_response[6] = INQ_DEVICE_IDENTIFICATION_PAGE; | |
579 | inq_response[7] = INQ_EXTENDED_INQUIRY_DATA_PAGE; | |
580 | inq_response[8] = INQ_BDEV_CHARACTERISTICS_PAGE; | |
7f749d9c | 581 | inq_response[9] = INQ_BDEV_LIMITS_PAGE; |
5d0f6131 VV |
582 | |
583 | xfer_len = min(alloc_len, STANDARD_INQUIRY_LENGTH); | |
e61b0a86 | 584 | return nvme_trans_copy_to_user(hdr, inq_response, xfer_len); |
5d0f6131 VV |
585 | } |
586 | ||
587 | static int nvme_trans_unit_serial_page(struct nvme_ns *ns, | |
588 | struct sg_io_hdr *hdr, u8 *inq_response, | |
589 | int alloc_len) | |
590 | { | |
5d0f6131 VV |
591 | int xfer_len; |
592 | ||
593 | memset(inq_response, 0, STANDARD_INQUIRY_LENGTH); | |
594 | inq_response[1] = INQ_UNIT_SERIAL_NUMBER_PAGE; /* Page Code */ | |
595 | inq_response[3] = INQ_SERIAL_NUMBER_LENGTH; /* Page Length */ | |
1c63dc66 | 596 | strncpy(&inq_response[4], ns->ctrl->serial, INQ_SERIAL_NUMBER_LENGTH); |
5d0f6131 VV |
597 | |
598 | xfer_len = min(alloc_len, STANDARD_INQUIRY_LENGTH); | |
e61b0a86 | 599 | return nvme_trans_copy_to_user(hdr, inq_response, xfer_len); |
5d0f6131 VV |
600 | } |
601 | ||
bf7d3ebb | 602 | static int nvme_fill_device_id_eui64(struct nvme_ns *ns, struct sg_io_hdr *hdr, |
f3ca80fc | 603 | u8 *inq_response, int alloc_len) |
5d0f6131 | 604 | { |
bf7d3ebb CH |
605 | struct nvme_id_ns *id_ns; |
606 | int nvme_sc, res; | |
607 | size_t len; | |
608 | void *eui; | |
5d0f6131 | 609 | |
1c63dc66 | 610 | nvme_sc = nvme_identify_ns(ns->ctrl, ns->ns_id, &id_ns); |
bf7d3ebb CH |
611 | res = nvme_trans_status_code(hdr, nvme_sc); |
612 | if (res) | |
613 | return res; | |
4f1982b4 | 614 | |
bf7d3ebb CH |
615 | eui = id_ns->eui64; |
616 | len = sizeof(id_ns->eui64); | |
617 | ||
f3ca80fc | 618 | if (ns->ctrl->vs >= NVME_VS(1, 2)) { |
d29ec824 | 619 | if (bitmap_empty(eui, len * 8)) { |
bf7d3ebb CH |
620 | eui = id_ns->nguid; |
621 | len = sizeof(id_ns->nguid); | |
d29ec824 | 622 | } |
bf7d3ebb | 623 | } |
4f1982b4 | 624 | |
bf7d3ebb CH |
625 | if (bitmap_empty(eui, len * 8)) { |
626 | res = -EOPNOTSUPP; | |
627 | goto out_free_id; | |
4f1982b4 | 628 | } |
bf7d3ebb CH |
629 | |
630 | memset(inq_response, 0, alloc_len); | |
631 | inq_response[1] = INQ_DEVICE_IDENTIFICATION_PAGE; | |
632 | inq_response[3] = 4 + len; /* Page Length */ | |
633 | ||
634 | /* Designation Descriptor start */ | |
635 | inq_response[4] = 0x01; /* Proto ID=0h | Code set=1h */ | |
636 | inq_response[5] = 0x02; /* PIV=0b | Asso=00b | Designator Type=2h */ | |
637 | inq_response[6] = 0x00; /* Rsvd */ | |
638 | inq_response[7] = len; /* Designator Length */ | |
639 | memcpy(&inq_response[8], eui, len); | |
640 | ||
641 | res = nvme_trans_copy_to_user(hdr, inq_response, alloc_len); | |
642 | out_free_id: | |
643 | kfree(id_ns); | |
644 | return res; | |
645 | } | |
646 | ||
647 | static int nvme_fill_device_id_scsi_string(struct nvme_ns *ns, | |
648 | struct sg_io_hdr *hdr, u8 *inq_response, int alloc_len) | |
649 | { | |
1c63dc66 | 650 | struct nvme_ctrl *ctrl = ns->ctrl; |
01fec28a CH |
651 | struct nvme_id_ctrl *id_ctrl; |
652 | int nvme_sc, res; | |
bf7d3ebb CH |
653 | |
654 | if (alloc_len < 72) { | |
655 | return nvme_trans_completion(hdr, | |
656 | SAM_STAT_CHECK_CONDITION, | |
657 | ILLEGAL_REQUEST, SCSI_ASC_INVALID_CDB, | |
658 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
659 | } | |
660 | ||
1c63dc66 | 661 | nvme_sc = nvme_identify_ctrl(ctrl, &id_ctrl); |
01fec28a CH |
662 | res = nvme_trans_status_code(hdr, nvme_sc); |
663 | if (res) | |
664 | return res; | |
665 | ||
bf7d3ebb CH |
666 | memset(inq_response, 0, alloc_len); |
667 | inq_response[1] = INQ_DEVICE_IDENTIFICATION_PAGE; | |
668 | inq_response[3] = 0x48; /* Page Length */ | |
669 | ||
670 | /* Designation Descriptor start */ | |
671 | inq_response[4] = 0x03; /* Proto ID=0h | Code set=3h */ | |
672 | inq_response[5] = 0x08; /* PIV=0b | Asso=00b | Designator Type=8h */ | |
673 | inq_response[6] = 0x00; /* Rsvd */ | |
674 | inq_response[7] = 0x44; /* Designator Length */ | |
675 | ||
01fec28a | 676 | sprintf(&inq_response[8], "%04x", le16_to_cpu(id_ctrl->vid)); |
1c63dc66 | 677 | memcpy(&inq_response[12], ctrl->model, sizeof(ctrl->model)); |
bf7d3ebb | 678 | sprintf(&inq_response[52], "%04x", cpu_to_be32(ns->ns_id)); |
1c63dc66 | 679 | memcpy(&inq_response[56], ctrl->serial, sizeof(ctrl->serial)); |
bf7d3ebb | 680 | |
01fec28a CH |
681 | res = nvme_trans_copy_to_user(hdr, inq_response, alloc_len); |
682 | kfree(id_ctrl); | |
683 | return res; | |
bf7d3ebb CH |
684 | } |
685 | ||
686 | static int nvme_trans_device_id_page(struct nvme_ns *ns, struct sg_io_hdr *hdr, | |
687 | u8 *resp, int alloc_len) | |
688 | { | |
689 | int res; | |
690 | ||
f3ca80fc CH |
691 | if (ns->ctrl->vs >= NVME_VS(1, 1)) { |
692 | res = nvme_fill_device_id_eui64(ns, hdr, resp, alloc_len); | |
bf7d3ebb CH |
693 | if (res != -EOPNOTSUPP) |
694 | return res; | |
695 | } | |
696 | ||
697 | return nvme_fill_device_id_scsi_string(ns, hdr, resp, alloc_len); | |
5d0f6131 VV |
698 | } |
699 | ||
700 | static int nvme_trans_ext_inq_page(struct nvme_ns *ns, struct sg_io_hdr *hdr, | |
701 | int alloc_len) | |
702 | { | |
703 | u8 *inq_response; | |
e61b0a86 | 704 | int res; |
5d0f6131 | 705 | int nvme_sc; |
1c63dc66 | 706 | struct nvme_ctrl *ctrl = ns->ctrl; |
5d0f6131 VV |
707 | struct nvme_id_ctrl *id_ctrl; |
708 | struct nvme_id_ns *id_ns; | |
709 | int xfer_len; | |
710 | u8 microcode = 0x80; | |
711 | u8 spt; | |
712 | u8 spt_lut[8] = {0, 0, 2, 1, 4, 6, 5, 7}; | |
713 | u8 grd_chk, app_chk, ref_chk, protect; | |
714 | u8 uask_sup = 0x20; | |
715 | u8 v_sup; | |
716 | u8 luiclr = 0x01; | |
717 | ||
718 | inq_response = kmalloc(EXTENDED_INQUIRY_DATA_PAGE_LENGTH, GFP_KERNEL); | |
d29ec824 CH |
719 | if (inq_response == NULL) |
720 | return -ENOMEM; | |
5d0f6131 | 721 | |
1c63dc66 | 722 | nvme_sc = nvme_identify_ns(ctrl, ns->ns_id, &id_ns); |
5d0f6131 VV |
723 | res = nvme_trans_status_code(hdr, nvme_sc); |
724 | if (res) | |
d29ec824 CH |
725 | goto out_free_inq; |
726 | ||
727 | spt = spt_lut[id_ns->dpc & 0x07] << 3; | |
728 | if (id_ns->dps) | |
729 | protect = 0x01; | |
730 | else | |
731 | protect = 0; | |
732 | kfree(id_ns); | |
e61b0a86 | 733 | |
5d0f6131 VV |
734 | grd_chk = protect << 2; |
735 | app_chk = protect << 1; | |
736 | ref_chk = protect; | |
737 | ||
1c63dc66 | 738 | nvme_sc = nvme_identify_ctrl(ctrl, &id_ctrl); |
5d0f6131 VV |
739 | res = nvme_trans_status_code(hdr, nvme_sc); |
740 | if (res) | |
d29ec824 | 741 | goto out_free_inq; |
e61b0a86 | 742 | |
5d0f6131 | 743 | v_sup = id_ctrl->vwc; |
d29ec824 | 744 | kfree(id_ctrl); |
5d0f6131 VV |
745 | |
746 | memset(inq_response, 0, EXTENDED_INQUIRY_DATA_PAGE_LENGTH); | |
747 | inq_response[1] = INQ_EXTENDED_INQUIRY_DATA_PAGE; /* Page Code */ | |
748 | inq_response[2] = 0x00; /* Page Length MSB */ | |
749 | inq_response[3] = 0x3C; /* Page Length LSB */ | |
750 | inq_response[4] = microcode | spt | grd_chk | app_chk | ref_chk; | |
751 | inq_response[5] = uask_sup; | |
752 | inq_response[6] = v_sup; | |
753 | inq_response[7] = luiclr; | |
754 | inq_response[8] = 0; | |
755 | inq_response[9] = 0; | |
756 | ||
757 | xfer_len = min(alloc_len, EXTENDED_INQUIRY_DATA_PAGE_LENGTH); | |
758 | res = nvme_trans_copy_to_user(hdr, inq_response, xfer_len); | |
759 | ||
d29ec824 | 760 | out_free_inq: |
5d0f6131 | 761 | kfree(inq_response); |
5d0f6131 VV |
762 | return res; |
763 | } | |
764 | ||
7f749d9c KB |
765 | static int nvme_trans_bdev_limits_page(struct nvme_ns *ns, struct sg_io_hdr *hdr, |
766 | u8 *inq_response, int alloc_len) | |
767 | { | |
9283b42e KB |
768 | __be32 max_sectors = cpu_to_be32( |
769 | nvme_block_nr(ns, queue_max_hw_sectors(ns->queue))); | |
7f749d9c KB |
770 | __be32 max_discard = cpu_to_be32(ns->queue->limits.max_discard_sectors); |
771 | __be32 discard_desc_count = cpu_to_be32(0x100); | |
772 | ||
773 | memset(inq_response, 0, STANDARD_INQUIRY_LENGTH); | |
774 | inq_response[1] = VPD_BLOCK_LIMITS; | |
775 | inq_response[3] = 0x3c; /* Page Length */ | |
776 | memcpy(&inq_response[8], &max_sectors, sizeof(u32)); | |
777 | memcpy(&inq_response[20], &max_discard, sizeof(u32)); | |
778 | ||
779 | if (max_discard) | |
780 | memcpy(&inq_response[24], &discard_desc_count, sizeof(u32)); | |
781 | ||
782 | return nvme_trans_copy_to_user(hdr, inq_response, 0x3c); | |
783 | } | |
784 | ||
5d0f6131 VV |
785 | static int nvme_trans_bdev_char_page(struct nvme_ns *ns, struct sg_io_hdr *hdr, |
786 | int alloc_len) | |
787 | { | |
788 | u8 *inq_response; | |
e61b0a86 | 789 | int res; |
5d0f6131 VV |
790 | int xfer_len; |
791 | ||
03ea83e9 | 792 | inq_response = kzalloc(EXTENDED_INQUIRY_DATA_PAGE_LENGTH, GFP_KERNEL); |
5d0f6131 VV |
793 | if (inq_response == NULL) { |
794 | res = -ENOMEM; | |
795 | goto out_mem; | |
796 | } | |
797 | ||
5d0f6131 VV |
798 | inq_response[1] = INQ_BDEV_CHARACTERISTICS_PAGE; /* Page Code */ |
799 | inq_response[2] = 0x00; /* Page Length MSB */ | |
800 | inq_response[3] = 0x3C; /* Page Length LSB */ | |
801 | inq_response[4] = 0x00; /* Medium Rotation Rate MSB */ | |
802 | inq_response[5] = 0x01; /* Medium Rotation Rate LSB */ | |
803 | inq_response[6] = 0x00; /* Form Factor */ | |
804 | ||
805 | xfer_len = min(alloc_len, EXTENDED_INQUIRY_DATA_PAGE_LENGTH); | |
806 | res = nvme_trans_copy_to_user(hdr, inq_response, xfer_len); | |
807 | ||
808 | kfree(inq_response); | |
809 | out_mem: | |
810 | return res; | |
811 | } | |
812 | ||
813 | /* LOG SENSE Helper Functions */ | |
814 | ||
815 | static int nvme_trans_log_supp_pages(struct nvme_ns *ns, struct sg_io_hdr *hdr, | |
816 | int alloc_len) | |
817 | { | |
e61b0a86 | 818 | int res; |
5d0f6131 VV |
819 | int xfer_len; |
820 | u8 *log_response; | |
821 | ||
03ea83e9 | 822 | log_response = kzalloc(LOG_PAGE_SUPPORTED_LOG_PAGES_LENGTH, GFP_KERNEL); |
5d0f6131 VV |
823 | if (log_response == NULL) { |
824 | res = -ENOMEM; | |
825 | goto out_mem; | |
826 | } | |
5d0f6131 VV |
827 | |
828 | log_response[0] = LOG_PAGE_SUPPORTED_LOG_PAGES_PAGE; | |
829 | /* Subpage=0x00, Page Length MSB=0 */ | |
830 | log_response[3] = SUPPORTED_LOG_PAGES_PAGE_LENGTH; | |
831 | log_response[4] = LOG_PAGE_SUPPORTED_LOG_PAGES_PAGE; | |
832 | log_response[5] = LOG_PAGE_INFORMATIONAL_EXCEPTIONS_PAGE; | |
833 | log_response[6] = LOG_PAGE_TEMPERATURE_PAGE; | |
834 | ||
835 | xfer_len = min(alloc_len, LOG_PAGE_SUPPORTED_LOG_PAGES_LENGTH); | |
836 | res = nvme_trans_copy_to_user(hdr, log_response, xfer_len); | |
837 | ||
838 | kfree(log_response); | |
839 | out_mem: | |
840 | return res; | |
841 | } | |
842 | ||
843 | static int nvme_trans_log_info_exceptions(struct nvme_ns *ns, | |
844 | struct sg_io_hdr *hdr, int alloc_len) | |
845 | { | |
e61b0a86 | 846 | int res; |
5d0f6131 VV |
847 | int xfer_len; |
848 | u8 *log_response; | |
5d0f6131 | 849 | struct nvme_smart_log *smart_log; |
5d0f6131 VV |
850 | u8 temp_c; |
851 | u16 temp_k; | |
852 | ||
03ea83e9 | 853 | log_response = kzalloc(LOG_INFO_EXCP_PAGE_LENGTH, GFP_KERNEL); |
d29ec824 CH |
854 | if (log_response == NULL) |
855 | return -ENOMEM; | |
5d0f6131 | 856 | |
1c63dc66 | 857 | res = nvme_get_log_page(ns->ctrl, &smart_log); |
d29ec824 CH |
858 | if (res < 0) |
859 | goto out_free_response; | |
5d0f6131 | 860 | |
5d0f6131 VV |
861 | if (res != NVME_SC_SUCCESS) { |
862 | temp_c = LOG_TEMP_UNKNOWN; | |
863 | } else { | |
5d0f6131 VV |
864 | temp_k = (smart_log->temperature[1] << 8) + |
865 | (smart_log->temperature[0]); | |
866 | temp_c = temp_k - KELVIN_TEMP_FACTOR; | |
867 | } | |
d29ec824 | 868 | kfree(smart_log); |
5d0f6131 VV |
869 | |
870 | log_response[0] = LOG_PAGE_INFORMATIONAL_EXCEPTIONS_PAGE; | |
871 | /* Subpage=0x00, Page Length MSB=0 */ | |
872 | log_response[3] = REMAINING_INFO_EXCP_PAGE_LENGTH; | |
873 | /* Informational Exceptions Log Parameter 1 Start */ | |
874 | /* Parameter Code=0x0000 bytes 4,5 */ | |
875 | log_response[6] = 0x23; /* DU=0, TSD=1, ETC=0, TMC=0, FMT_AND_LNK=11b */ | |
876 | log_response[7] = 0x04; /* PARAMETER LENGTH */ | |
877 | /* Add sense Code and qualifier = 0x00 each */ | |
878 | /* Use Temperature from NVMe Get Log Page, convert to C from K */ | |
879 | log_response[10] = temp_c; | |
880 | ||
881 | xfer_len = min(alloc_len, LOG_INFO_EXCP_PAGE_LENGTH); | |
882 | res = nvme_trans_copy_to_user(hdr, log_response, xfer_len); | |
883 | ||
d29ec824 | 884 | out_free_response: |
5d0f6131 | 885 | kfree(log_response); |
5d0f6131 VV |
886 | return res; |
887 | } | |
888 | ||
889 | static int nvme_trans_log_temperature(struct nvme_ns *ns, struct sg_io_hdr *hdr, | |
890 | int alloc_len) | |
891 | { | |
e61b0a86 | 892 | int res; |
5d0f6131 VV |
893 | int xfer_len; |
894 | u8 *log_response; | |
5d0f6131 | 895 | struct nvme_smart_log *smart_log; |
5d0f6131 VV |
896 | u32 feature_resp; |
897 | u8 temp_c_cur, temp_c_thresh; | |
898 | u16 temp_k; | |
899 | ||
03ea83e9 | 900 | log_response = kzalloc(LOG_TEMP_PAGE_LENGTH, GFP_KERNEL); |
d29ec824 CH |
901 | if (log_response == NULL) |
902 | return -ENOMEM; | |
5d0f6131 | 903 | |
1c63dc66 | 904 | res = nvme_get_log_page(ns->ctrl, &smart_log); |
d29ec824 CH |
905 | if (res < 0) |
906 | goto out_free_response; | |
5d0f6131 | 907 | |
5d0f6131 VV |
908 | if (res != NVME_SC_SUCCESS) { |
909 | temp_c_cur = LOG_TEMP_UNKNOWN; | |
910 | } else { | |
5d0f6131 VV |
911 | temp_k = (smart_log->temperature[1] << 8) + |
912 | (smart_log->temperature[0]); | |
913 | temp_c_cur = temp_k - KELVIN_TEMP_FACTOR; | |
914 | } | |
d29ec824 | 915 | kfree(smart_log); |
5d0f6131 VV |
916 | |
917 | /* Get Features for Temp Threshold */ | |
1c63dc66 | 918 | res = nvme_get_features(ns->ctrl, NVME_FEAT_TEMP_THRESH, 0, 0, |
5d0f6131 VV |
919 | &feature_resp); |
920 | if (res != NVME_SC_SUCCESS) | |
921 | temp_c_thresh = LOG_TEMP_UNKNOWN; | |
922 | else | |
923 | temp_c_thresh = (feature_resp & 0xFFFF) - KELVIN_TEMP_FACTOR; | |
924 | ||
925 | log_response[0] = LOG_PAGE_TEMPERATURE_PAGE; | |
926 | /* Subpage=0x00, Page Length MSB=0 */ | |
927 | log_response[3] = REMAINING_TEMP_PAGE_LENGTH; | |
928 | /* Temperature Log Parameter 1 (Temperature) Start */ | |
929 | /* Parameter Code = 0x0000 */ | |
930 | log_response[6] = 0x01; /* Format and Linking = 01b */ | |
931 | log_response[7] = 0x02; /* Parameter Length */ | |
932 | /* Use Temperature from NVMe Get Log Page, convert to C from K */ | |
933 | log_response[9] = temp_c_cur; | |
934 | /* Temperature Log Parameter 2 (Reference Temperature) Start */ | |
935 | log_response[11] = 0x01; /* Parameter Code = 0x0001 */ | |
936 | log_response[12] = 0x01; /* Format and Linking = 01b */ | |
937 | log_response[13] = 0x02; /* Parameter Length */ | |
938 | /* Use Temperature Thresh from NVMe Get Log Page, convert to C from K */ | |
939 | log_response[15] = temp_c_thresh; | |
940 | ||
941 | xfer_len = min(alloc_len, LOG_TEMP_PAGE_LENGTH); | |
942 | res = nvme_trans_copy_to_user(hdr, log_response, xfer_len); | |
943 | ||
d29ec824 | 944 | out_free_response: |
5d0f6131 | 945 | kfree(log_response); |
5d0f6131 VV |
946 | return res; |
947 | } | |
948 | ||
949 | /* MODE SENSE Helper Functions */ | |
950 | ||
951 | static int nvme_trans_fill_mode_parm_hdr(u8 *resp, int len, u8 cdb10, u8 llbaa, | |
952 | u16 mode_data_length, u16 blk_desc_len) | |
953 | { | |
954 | /* Quick check to make sure I don't stomp on my own memory... */ | |
955 | if ((cdb10 && len < 8) || (!cdb10 && len < 4)) | |
e61b0a86 | 956 | return -EINVAL; |
5d0f6131 VV |
957 | |
958 | if (cdb10) { | |
959 | resp[0] = (mode_data_length & 0xFF00) >> 8; | |
960 | resp[1] = (mode_data_length & 0x00FF); | |
90851768 | 961 | resp[3] = 0x10 /* DPOFUA */; |
5d0f6131 VV |
962 | resp[4] = llbaa; |
963 | resp[5] = RESERVED_FIELD; | |
964 | resp[6] = (blk_desc_len & 0xFF00) >> 8; | |
965 | resp[7] = (blk_desc_len & 0x00FF); | |
966 | } else { | |
967 | resp[0] = (mode_data_length & 0x00FF); | |
90851768 | 968 | resp[2] = 0x10 /* DPOFUA */; |
5d0f6131 VV |
969 | resp[3] = (blk_desc_len & 0x00FF); |
970 | } | |
971 | ||
e61b0a86 | 972 | return 0; |
5d0f6131 VV |
973 | } |
974 | ||
975 | static int nvme_trans_fill_blk_desc(struct nvme_ns *ns, struct sg_io_hdr *hdr, | |
976 | u8 *resp, int len, u8 llbaa) | |
977 | { | |
e61b0a86 | 978 | int res; |
5d0f6131 | 979 | int nvme_sc; |
5d0f6131 VV |
980 | struct nvme_id_ns *id_ns; |
981 | u8 flbas; | |
982 | u32 lba_length; | |
983 | ||
984 | if (llbaa == 0 && len < MODE_PAGE_BLK_DES_LEN) | |
e61b0a86 | 985 | return -EINVAL; |
5d0f6131 | 986 | else if (llbaa > 0 && len < MODE_PAGE_LLBAA_BLK_DES_LEN) |
e61b0a86 | 987 | return -EINVAL; |
5d0f6131 | 988 | |
1c63dc66 | 989 | nvme_sc = nvme_identify_ns(ns->ctrl, ns->ns_id, &id_ns); |
5d0f6131 VV |
990 | res = nvme_trans_status_code(hdr, nvme_sc); |
991 | if (res) | |
d29ec824 | 992 | return res; |
e61b0a86 | 993 | |
5d0f6131 VV |
994 | flbas = (id_ns->flbas) & 0x0F; |
995 | lba_length = (1 << (id_ns->lbaf[flbas].ds)); | |
996 | ||
997 | if (llbaa == 0) { | |
8741ee4c | 998 | __be32 tmp_cap = cpu_to_be32(le64_to_cpu(id_ns->ncap)); |
5d0f6131 | 999 | /* Byte 4 is reserved */ |
8741ee4c | 1000 | __be32 tmp_len = cpu_to_be32(lba_length & 0x00FFFFFF); |
5d0f6131 VV |
1001 | |
1002 | memcpy(resp, &tmp_cap, sizeof(u32)); | |
1003 | memcpy(&resp[4], &tmp_len, sizeof(u32)); | |
1004 | } else { | |
8741ee4c VV |
1005 | __be64 tmp_cap = cpu_to_be64(le64_to_cpu(id_ns->ncap)); |
1006 | __be32 tmp_len = cpu_to_be32(lba_length); | |
5d0f6131 VV |
1007 | |
1008 | memcpy(resp, &tmp_cap, sizeof(u64)); | |
1009 | /* Bytes 8, 9, 10, 11 are reserved */ | |
1010 | memcpy(&resp[12], &tmp_len, sizeof(u32)); | |
1011 | } | |
1012 | ||
d29ec824 | 1013 | kfree(id_ns); |
5d0f6131 VV |
1014 | return res; |
1015 | } | |
1016 | ||
1017 | static int nvme_trans_fill_control_page(struct nvme_ns *ns, | |
1018 | struct sg_io_hdr *hdr, u8 *resp, | |
1019 | int len) | |
1020 | { | |
1021 | if (len < MODE_PAGE_CONTROL_LEN) | |
e61b0a86 | 1022 | return -EINVAL; |
5d0f6131 VV |
1023 | |
1024 | resp[0] = MODE_PAGE_CONTROL; | |
1025 | resp[1] = MODE_PAGE_CONTROL_LEN_FIELD; | |
1026 | resp[2] = 0x0E; /* TST=000b, TMF_ONLY=0, DPICZ=1, | |
1027 | * D_SENSE=1, GLTSD=1, RLEC=0 */ | |
1028 | resp[3] = 0x12; /* Q_ALGO_MODIFIER=1h, NUAR=0, QERR=01b */ | |
1029 | /* Byte 4: VS=0, RAC=0, UA_INT=0, SWP=0 */ | |
1030 | resp[5] = 0x40; /* ATO=0, TAS=1, ATMPE=0, RWWP=0, AUTOLOAD=0 */ | |
1031 | /* resp[6] and [7] are obsolete, thus zero */ | |
1032 | resp[8] = 0xFF; /* Busy timeout period = 0xffff */ | |
1033 | resp[9] = 0xFF; | |
1034 | /* Bytes 10,11: Extended selftest completion time = 0x0000 */ | |
1035 | ||
e61b0a86 | 1036 | return 0; |
5d0f6131 VV |
1037 | } |
1038 | ||
1039 | static int nvme_trans_fill_caching_page(struct nvme_ns *ns, | |
1040 | struct sg_io_hdr *hdr, | |
1041 | u8 *resp, int len) | |
1042 | { | |
e61b0a86 | 1043 | int res = 0; |
5d0f6131 | 1044 | int nvme_sc; |
5d0f6131 VV |
1045 | u32 feature_resp; |
1046 | u8 vwc; | |
1047 | ||
1048 | if (len < MODE_PAGE_CACHING_LEN) | |
e61b0a86 | 1049 | return -EINVAL; |
5d0f6131 | 1050 | |
1c63dc66 | 1051 | nvme_sc = nvme_get_features(ns->ctrl, NVME_FEAT_VOLATILE_WC, 0, 0, |
5d0f6131 VV |
1052 | &feature_resp); |
1053 | res = nvme_trans_status_code(hdr, nvme_sc); | |
1054 | if (res) | |
e61b0a86 CH |
1055 | return res; |
1056 | ||
5d0f6131 VV |
1057 | vwc = feature_resp & 0x00000001; |
1058 | ||
1059 | resp[0] = MODE_PAGE_CACHING; | |
1060 | resp[1] = MODE_PAGE_CACHING_LEN_FIELD; | |
1061 | resp[2] = vwc << 2; | |
e61b0a86 | 1062 | return 0; |
5d0f6131 VV |
1063 | } |
1064 | ||
1065 | static int nvme_trans_fill_pow_cnd_page(struct nvme_ns *ns, | |
1066 | struct sg_io_hdr *hdr, u8 *resp, | |
1067 | int len) | |
1068 | { | |
5d0f6131 | 1069 | if (len < MODE_PAGE_POW_CND_LEN) |
e61b0a86 | 1070 | return -EINVAL; |
5d0f6131 VV |
1071 | |
1072 | resp[0] = MODE_PAGE_POWER_CONDITION; | |
1073 | resp[1] = MODE_PAGE_POW_CND_LEN_FIELD; | |
1074 | /* All other bytes are zero */ | |
1075 | ||
e61b0a86 | 1076 | return 0; |
5d0f6131 VV |
1077 | } |
1078 | ||
1079 | static int nvme_trans_fill_inf_exc_page(struct nvme_ns *ns, | |
1080 | struct sg_io_hdr *hdr, u8 *resp, | |
1081 | int len) | |
1082 | { | |
5d0f6131 | 1083 | if (len < MODE_PAGE_INF_EXC_LEN) |
e61b0a86 | 1084 | return -EINVAL; |
5d0f6131 VV |
1085 | |
1086 | resp[0] = MODE_PAGE_INFO_EXCEP; | |
1087 | resp[1] = MODE_PAGE_INF_EXC_LEN_FIELD; | |
1088 | resp[2] = 0x88; | |
1089 | /* All other bytes are zero */ | |
1090 | ||
e61b0a86 | 1091 | return 0; |
5d0f6131 VV |
1092 | } |
1093 | ||
1094 | static int nvme_trans_fill_all_pages(struct nvme_ns *ns, struct sg_io_hdr *hdr, | |
1095 | u8 *resp, int len) | |
1096 | { | |
e61b0a86 | 1097 | int res; |
5d0f6131 VV |
1098 | u16 mode_pages_offset_1 = 0; |
1099 | u16 mode_pages_offset_2, mode_pages_offset_3, mode_pages_offset_4; | |
1100 | ||
1101 | mode_pages_offset_2 = mode_pages_offset_1 + MODE_PAGE_CACHING_LEN; | |
1102 | mode_pages_offset_3 = mode_pages_offset_2 + MODE_PAGE_CONTROL_LEN; | |
1103 | mode_pages_offset_4 = mode_pages_offset_3 + MODE_PAGE_POW_CND_LEN; | |
1104 | ||
1105 | res = nvme_trans_fill_caching_page(ns, hdr, &resp[mode_pages_offset_1], | |
1106 | MODE_PAGE_CACHING_LEN); | |
e61b0a86 CH |
1107 | if (res) |
1108 | return res; | |
5d0f6131 VV |
1109 | res = nvme_trans_fill_control_page(ns, hdr, &resp[mode_pages_offset_2], |
1110 | MODE_PAGE_CONTROL_LEN); | |
e61b0a86 CH |
1111 | if (res) |
1112 | return res; | |
5d0f6131 VV |
1113 | res = nvme_trans_fill_pow_cnd_page(ns, hdr, &resp[mode_pages_offset_3], |
1114 | MODE_PAGE_POW_CND_LEN); | |
e61b0a86 CH |
1115 | if (res) |
1116 | return res; | |
1117 | return nvme_trans_fill_inf_exc_page(ns, hdr, &resp[mode_pages_offset_4], | |
5d0f6131 | 1118 | MODE_PAGE_INF_EXC_LEN); |
5d0f6131 VV |
1119 | } |
1120 | ||
1121 | static inline int nvme_trans_get_blk_desc_len(u8 dbd, u8 llbaa) | |
1122 | { | |
1123 | if (dbd == MODE_SENSE_BLK_DESC_ENABLED) { | |
1124 | /* SPC-4: len = 8 x Num_of_descriptors if llbaa = 0, 16x if 1 */ | |
1125 | return 8 * (llbaa + 1) * MODE_SENSE_BLK_DESC_COUNT; | |
1126 | } else { | |
1127 | return 0; | |
1128 | } | |
1129 | } | |
1130 | ||
1131 | static int nvme_trans_mode_page_create(struct nvme_ns *ns, | |
1132 | struct sg_io_hdr *hdr, u8 *cmd, | |
1133 | u16 alloc_len, u8 cdb10, | |
1134 | int (*mode_page_fill_func) | |
1135 | (struct nvme_ns *, | |
1136 | struct sg_io_hdr *hdr, u8 *, int), | |
1137 | u16 mode_pages_tot_len) | |
1138 | { | |
e61b0a86 | 1139 | int res; |
5d0f6131 VV |
1140 | int xfer_len; |
1141 | u8 *response; | |
1142 | u8 dbd, llbaa; | |
1143 | u16 resp_size; | |
1144 | int mph_size; | |
1145 | u16 mode_pages_offset_1; | |
1146 | u16 blk_desc_len, blk_desc_offset, mode_data_length; | |
1147 | ||
3726897e CH |
1148 | dbd = (cmd[1] & MODE_SENSE_DBD_MASK) >> MODE_SENSE_DBD_SHIFT; |
1149 | llbaa = (cmd[1] & MODE_SENSE_LLBAA_MASK) >> MODE_SENSE_LLBAA_SHIFT; | |
1150 | mph_size = cdb10 ? MODE_SENSE10_MPH_SIZE : MODE_SENSE6_MPH_SIZE; | |
1151 | ||
5d0f6131 VV |
1152 | blk_desc_len = nvme_trans_get_blk_desc_len(dbd, llbaa); |
1153 | ||
1154 | resp_size = mph_size + blk_desc_len + mode_pages_tot_len; | |
1155 | /* Refer spc4r34 Table 440 for calculation of Mode data Length field */ | |
1156 | mode_data_length = 3 + (3 * cdb10) + blk_desc_len + mode_pages_tot_len; | |
1157 | ||
1158 | blk_desc_offset = mph_size; | |
1159 | mode_pages_offset_1 = blk_desc_offset + blk_desc_len; | |
1160 | ||
03ea83e9 | 1161 | response = kzalloc(resp_size, GFP_KERNEL); |
5d0f6131 VV |
1162 | if (response == NULL) { |
1163 | res = -ENOMEM; | |
1164 | goto out_mem; | |
1165 | } | |
5d0f6131 VV |
1166 | |
1167 | res = nvme_trans_fill_mode_parm_hdr(&response[0], mph_size, cdb10, | |
1168 | llbaa, mode_data_length, blk_desc_len); | |
e61b0a86 | 1169 | if (res) |
5d0f6131 VV |
1170 | goto out_free; |
1171 | if (blk_desc_len > 0) { | |
1172 | res = nvme_trans_fill_blk_desc(ns, hdr, | |
1173 | &response[blk_desc_offset], | |
1174 | blk_desc_len, llbaa); | |
e61b0a86 | 1175 | if (res) |
5d0f6131 VV |
1176 | goto out_free; |
1177 | } | |
1178 | res = mode_page_fill_func(ns, hdr, &response[mode_pages_offset_1], | |
1179 | mode_pages_tot_len); | |
e61b0a86 | 1180 | if (res) |
5d0f6131 VV |
1181 | goto out_free; |
1182 | ||
1183 | xfer_len = min(alloc_len, resp_size); | |
1184 | res = nvme_trans_copy_to_user(hdr, response, xfer_len); | |
1185 | ||
1186 | out_free: | |
1187 | kfree(response); | |
1188 | out_mem: | |
1189 | return res; | |
1190 | } | |
1191 | ||
1192 | /* Read Capacity Helper Functions */ | |
1193 | ||
1194 | static void nvme_trans_fill_read_cap(u8 *response, struct nvme_id_ns *id_ns, | |
1195 | u8 cdb16) | |
1196 | { | |
1197 | u8 flbas; | |
1198 | u32 lba_length; | |
1199 | u64 rlba; | |
1200 | u8 prot_en; | |
1201 | u8 p_type_lut[4] = {0, 0, 1, 2}; | |
8741ee4c VV |
1202 | __be64 tmp_rlba; |
1203 | __be32 tmp_rlba_32; | |
1204 | __be32 tmp_len; | |
5d0f6131 VV |
1205 | |
1206 | flbas = (id_ns->flbas) & 0x0F; | |
1207 | lba_length = (1 << (id_ns->lbaf[flbas].ds)); | |
1208 | rlba = le64_to_cpup(&id_ns->nsze) - 1; | |
1209 | (id_ns->dps) ? (prot_en = 0x01) : (prot_en = 0); | |
1210 | ||
1211 | if (!cdb16) { | |
1212 | if (rlba > 0xFFFFFFFF) | |
1213 | rlba = 0xFFFFFFFF; | |
1214 | tmp_rlba_32 = cpu_to_be32(rlba); | |
1215 | tmp_len = cpu_to_be32(lba_length); | |
1216 | memcpy(response, &tmp_rlba_32, sizeof(u32)); | |
1217 | memcpy(&response[4], &tmp_len, sizeof(u32)); | |
1218 | } else { | |
1219 | tmp_rlba = cpu_to_be64(rlba); | |
1220 | tmp_len = cpu_to_be32(lba_length); | |
1221 | memcpy(response, &tmp_rlba, sizeof(u64)); | |
1222 | memcpy(&response[8], &tmp_len, sizeof(u32)); | |
1223 | response[12] = (p_type_lut[id_ns->dps & 0x3] << 1) | prot_en; | |
1224 | /* P_I_Exponent = 0x0 | LBPPBE = 0x0 */ | |
1225 | /* LBPME = 0 | LBPRZ = 0 | LALBA = 0x00 */ | |
1226 | /* Bytes 16-31 - Reserved */ | |
1227 | } | |
1228 | } | |
1229 | ||
1230 | /* Start Stop Unit Helper Functions */ | |
1231 | ||
1232 | static int nvme_trans_power_state(struct nvme_ns *ns, struct sg_io_hdr *hdr, | |
1233 | u8 pc, u8 pcmod, u8 start) | |
1234 | { | |
e61b0a86 | 1235 | int res; |
5d0f6131 | 1236 | int nvme_sc; |
5d0f6131 VV |
1237 | struct nvme_id_ctrl *id_ctrl; |
1238 | int lowest_pow_st; /* max npss = lowest power consumption */ | |
1239 | unsigned ps_desired = 0; | |
1240 | ||
1c63dc66 | 1241 | nvme_sc = nvme_identify_ctrl(ns->ctrl, &id_ctrl); |
5d0f6131 VV |
1242 | res = nvme_trans_status_code(hdr, nvme_sc); |
1243 | if (res) | |
d29ec824 | 1244 | return res; |
e61b0a86 | 1245 | |
b8e08084 | 1246 | lowest_pow_st = max(POWER_STATE_0, (int)(id_ctrl->npss - 1)); |
d29ec824 | 1247 | kfree(id_ctrl); |
5d0f6131 VV |
1248 | |
1249 | switch (pc) { | |
1250 | case NVME_POWER_STATE_START_VALID: | |
1251 | /* Action unspecified if POWER CONDITION MODIFIER != 0 */ | |
1252 | if (pcmod == 0 && start == 0x1) | |
1253 | ps_desired = POWER_STATE_0; | |
1254 | if (pcmod == 0 && start == 0x0) | |
1255 | ps_desired = lowest_pow_st; | |
1256 | break; | |
1257 | case NVME_POWER_STATE_ACTIVE: | |
1258 | /* Action unspecified if POWER CONDITION MODIFIER != 0 */ | |
1259 | if (pcmod == 0) | |
1260 | ps_desired = POWER_STATE_0; | |
1261 | break; | |
1262 | case NVME_POWER_STATE_IDLE: | |
1263 | /* Action unspecified if POWER CONDITION MODIFIER != [0,1,2] */ | |
5d0f6131 | 1264 | if (pcmod == 0x0) |
b8e08084 | 1265 | ps_desired = POWER_STATE_1; |
5d0f6131 | 1266 | else if (pcmod == 0x1) |
b8e08084 | 1267 | ps_desired = POWER_STATE_2; |
5d0f6131 | 1268 | else if (pcmod == 0x2) |
b8e08084 | 1269 | ps_desired = POWER_STATE_3; |
5d0f6131 VV |
1270 | break; |
1271 | case NVME_POWER_STATE_STANDBY: | |
1272 | /* Action unspecified if POWER CONDITION MODIFIER != [0,1] */ | |
1273 | if (pcmod == 0x0) | |
b8e08084 | 1274 | ps_desired = max(POWER_STATE_0, (lowest_pow_st - 2)); |
5d0f6131 | 1275 | else if (pcmod == 0x1) |
b8e08084 | 1276 | ps_desired = max(POWER_STATE_0, (lowest_pow_st - 1)); |
5d0f6131 VV |
1277 | break; |
1278 | case NVME_POWER_STATE_LU_CONTROL: | |
1279 | default: | |
1280 | res = nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION, | |
1281 | ILLEGAL_REQUEST, SCSI_ASC_INVALID_CDB, | |
1282 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
1283 | break; | |
1284 | } | |
1c63dc66 | 1285 | nvme_sc = nvme_set_features(ns->ctrl, NVME_FEAT_POWER_MGMT, ps_desired, 0, |
5d0f6131 | 1286 | NULL); |
d29ec824 | 1287 | return nvme_trans_status_code(hdr, nvme_sc); |
5d0f6131 VV |
1288 | } |
1289 | ||
b90c48d0 CH |
1290 | static int nvme_trans_send_activate_fw_cmd(struct nvme_ns *ns, struct sg_io_hdr *hdr, |
1291 | u8 buffer_id) | |
1292 | { | |
1293 | struct nvme_command c; | |
1294 | int nvme_sc; | |
5d0f6131 | 1295 | |
b90c48d0 CH |
1296 | memset(&c, 0, sizeof(c)); |
1297 | c.common.opcode = nvme_admin_activate_fw; | |
1298 | c.common.cdw10[0] = cpu_to_le32(buffer_id | NVME_FWACT_REPL_ACTV); | |
1299 | ||
d29ec824 | 1300 | nvme_sc = nvme_submit_sync_cmd(ns->queue, &c, NULL, 0); |
e61b0a86 | 1301 | return nvme_trans_status_code(hdr, nvme_sc); |
b90c48d0 | 1302 | } |
5d0f6131 | 1303 | |
b90c48d0 | 1304 | static int nvme_trans_send_download_fw_cmd(struct nvme_ns *ns, struct sg_io_hdr *hdr, |
5d0f6131 VV |
1305 | u8 opcode, u32 tot_len, u32 offset, |
1306 | u8 buffer_id) | |
1307 | { | |
5d0f6131 | 1308 | int nvme_sc; |
5d0f6131 | 1309 | struct nvme_command c; |
5d0f6131 | 1310 | |
b90c48d0 CH |
1311 | if (hdr->iovec_count > 0) { |
1312 | /* Assuming SGL is not allowed for this command */ | |
1313 | return nvme_trans_completion(hdr, | |
1314 | SAM_STAT_CHECK_CONDITION, | |
1315 | ILLEGAL_REQUEST, | |
1316 | SCSI_ASC_INVALID_CDB, | |
1317 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
5d0f6131 VV |
1318 | } |
1319 | ||
d29ec824 CH |
1320 | memset(&c, 0, sizeof(c)); |
1321 | c.common.opcode = nvme_admin_download_fw; | |
b90c48d0 CH |
1322 | c.dlfw.numd = cpu_to_le32((tot_len/BYTES_TO_DWORDS) - 1); |
1323 | c.dlfw.offset = cpu_to_le32(offset/BYTES_TO_DWORDS); | |
1324 | ||
4160982e | 1325 | nvme_sc = nvme_submit_user_cmd(ns->ctrl->admin_q, &c, |
d29ec824 CH |
1326 | hdr->dxferp, tot_len, NULL, 0); |
1327 | return nvme_trans_status_code(hdr, nvme_sc); | |
5d0f6131 VV |
1328 | } |
1329 | ||
1330 | /* Mode Select Helper Functions */ | |
1331 | ||
1332 | static inline void nvme_trans_modesel_get_bd_len(u8 *parm_list, u8 cdb10, | |
1333 | u16 *bd_len, u8 *llbaa) | |
1334 | { | |
1335 | if (cdb10) { | |
1336 | /* 10 Byte CDB */ | |
1337 | *bd_len = (parm_list[MODE_SELECT_10_BD_OFFSET] << 8) + | |
1338 | parm_list[MODE_SELECT_10_BD_OFFSET + 1]; | |
9ac16938 | 1339 | *llbaa = parm_list[MODE_SELECT_10_LLBAA_OFFSET] & |
5d0f6131 VV |
1340 | MODE_SELECT_10_LLBAA_MASK; |
1341 | } else { | |
1342 | /* 6 Byte CDB */ | |
1343 | *bd_len = parm_list[MODE_SELECT_6_BD_OFFSET]; | |
1344 | } | |
1345 | } | |
1346 | ||
1347 | static void nvme_trans_modesel_save_bd(struct nvme_ns *ns, u8 *parm_list, | |
1348 | u16 idx, u16 bd_len, u8 llbaa) | |
1349 | { | |
1350 | u16 bd_num; | |
1351 | ||
1352 | bd_num = bd_len / ((llbaa == 0) ? | |
1353 | SHORT_DESC_BLOCK : LONG_DESC_BLOCK); | |
1354 | /* Store block descriptor info if a FORMAT UNIT comes later */ | |
1355 | /* TODO Saving 1st BD info; what to do if multiple BD received? */ | |
1356 | if (llbaa == 0) { | |
1357 | /* Standard Block Descriptor - spc4r34 7.5.5.1 */ | |
1358 | ns->mode_select_num_blocks = | |
1359 | (parm_list[idx + 1] << 16) + | |
1360 | (parm_list[idx + 2] << 8) + | |
1361 | (parm_list[idx + 3]); | |
1362 | ||
1363 | ns->mode_select_block_len = | |
1364 | (parm_list[idx + 5] << 16) + | |
1365 | (parm_list[idx + 6] << 8) + | |
1366 | (parm_list[idx + 7]); | |
1367 | } else { | |
1368 | /* Long LBA Block Descriptor - sbc3r27 6.4.2.3 */ | |
1369 | ns->mode_select_num_blocks = | |
1370 | (((u64)parm_list[idx + 0]) << 56) + | |
1371 | (((u64)parm_list[idx + 1]) << 48) + | |
1372 | (((u64)parm_list[idx + 2]) << 40) + | |
1373 | (((u64)parm_list[idx + 3]) << 32) + | |
1374 | (((u64)parm_list[idx + 4]) << 24) + | |
1375 | (((u64)parm_list[idx + 5]) << 16) + | |
1376 | (((u64)parm_list[idx + 6]) << 8) + | |
1377 | ((u64)parm_list[idx + 7]); | |
1378 | ||
1379 | ns->mode_select_block_len = | |
1380 | (parm_list[idx + 12] << 24) + | |
1381 | (parm_list[idx + 13] << 16) + | |
1382 | (parm_list[idx + 14] << 8) + | |
1383 | (parm_list[idx + 15]); | |
1384 | } | |
1385 | } | |
1386 | ||
710a143d | 1387 | static int nvme_trans_modesel_get_mp(struct nvme_ns *ns, struct sg_io_hdr *hdr, |
5d0f6131 VV |
1388 | u8 *mode_page, u8 page_code) |
1389 | { | |
e61b0a86 | 1390 | int res = 0; |
5d0f6131 | 1391 | int nvme_sc; |
5d0f6131 VV |
1392 | unsigned dword11; |
1393 | ||
1394 | switch (page_code) { | |
1395 | case MODE_PAGE_CACHING: | |
1396 | dword11 = ((mode_page[2] & CACHING_MODE_PAGE_WCE_MASK) ? 1 : 0); | |
1c63dc66 CH |
1397 | nvme_sc = nvme_set_features(ns->ctrl, NVME_FEAT_VOLATILE_WC, |
1398 | dword11, 0, NULL); | |
5d0f6131 | 1399 | res = nvme_trans_status_code(hdr, nvme_sc); |
5d0f6131 VV |
1400 | break; |
1401 | case MODE_PAGE_CONTROL: | |
1402 | break; | |
1403 | case MODE_PAGE_POWER_CONDITION: | |
1404 | /* Verify the OS is not trying to set timers */ | |
1405 | if ((mode_page[2] & 0x01) != 0 || (mode_page[3] & 0x0F) != 0) { | |
1406 | res = nvme_trans_completion(hdr, | |
1407 | SAM_STAT_CHECK_CONDITION, | |
1408 | ILLEGAL_REQUEST, | |
1409 | SCSI_ASC_INVALID_PARAMETER, | |
1410 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
5d0f6131 VV |
1411 | break; |
1412 | } | |
1413 | break; | |
1414 | default: | |
1415 | res = nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION, | |
1416 | ILLEGAL_REQUEST, SCSI_ASC_INVALID_CDB, | |
1417 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
5d0f6131 VV |
1418 | break; |
1419 | } | |
1420 | ||
1421 | return res; | |
1422 | } | |
1423 | ||
1424 | static int nvme_trans_modesel_data(struct nvme_ns *ns, struct sg_io_hdr *hdr, | |
1425 | u8 *cmd, u16 parm_list_len, u8 pf, | |
1426 | u8 sp, u8 cdb10) | |
1427 | { | |
e61b0a86 | 1428 | int res; |
5d0f6131 VV |
1429 | u8 *parm_list; |
1430 | u16 bd_len; | |
1431 | u8 llbaa = 0; | |
1432 | u16 index, saved_index; | |
1433 | u8 page_code; | |
1434 | u16 mp_size; | |
1435 | ||
1436 | /* Get parm list from data-in/out buffer */ | |
1437 | parm_list = kmalloc(parm_list_len, GFP_KERNEL); | |
1438 | if (parm_list == NULL) { | |
1439 | res = -ENOMEM; | |
1440 | goto out; | |
1441 | } | |
1442 | ||
1443 | res = nvme_trans_copy_from_user(hdr, parm_list, parm_list_len); | |
e61b0a86 | 1444 | if (res) |
5d0f6131 VV |
1445 | goto out_mem; |
1446 | ||
1447 | nvme_trans_modesel_get_bd_len(parm_list, cdb10, &bd_len, &llbaa); | |
1448 | index = (cdb10) ? (MODE_SELECT_10_MPH_SIZE) : (MODE_SELECT_6_MPH_SIZE); | |
1449 | ||
1450 | if (bd_len != 0) { | |
1451 | /* Block Descriptors present, parse */ | |
1452 | nvme_trans_modesel_save_bd(ns, parm_list, index, bd_len, llbaa); | |
1453 | index += bd_len; | |
1454 | } | |
1455 | saved_index = index; | |
1456 | ||
1457 | /* Multiple mode pages may be present; iterate through all */ | |
1458 | /* In 1st Iteration, don't do NVME Command, only check for CDB errors */ | |
1459 | do { | |
1460 | page_code = parm_list[index] & MODE_SELECT_PAGE_CODE_MASK; | |
1461 | mp_size = parm_list[index + 1] + 2; | |
1462 | if ((page_code != MODE_PAGE_CACHING) && | |
1463 | (page_code != MODE_PAGE_CONTROL) && | |
1464 | (page_code != MODE_PAGE_POWER_CONDITION)) { | |
1465 | res = nvme_trans_completion(hdr, | |
1466 | SAM_STAT_CHECK_CONDITION, | |
1467 | ILLEGAL_REQUEST, | |
1468 | SCSI_ASC_INVALID_CDB, | |
1469 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
1470 | goto out_mem; | |
1471 | } | |
1472 | index += mp_size; | |
1473 | } while (index < parm_list_len); | |
1474 | ||
1475 | /* In 2nd Iteration, do the NVME Commands */ | |
1476 | index = saved_index; | |
1477 | do { | |
1478 | page_code = parm_list[index] & MODE_SELECT_PAGE_CODE_MASK; | |
1479 | mp_size = parm_list[index + 1] + 2; | |
1480 | res = nvme_trans_modesel_get_mp(ns, hdr, &parm_list[index], | |
1481 | page_code); | |
e61b0a86 | 1482 | if (res) |
5d0f6131 VV |
1483 | break; |
1484 | index += mp_size; | |
1485 | } while (index < parm_list_len); | |
1486 | ||
1487 | out_mem: | |
1488 | kfree(parm_list); | |
1489 | out: | |
1490 | return res; | |
1491 | } | |
1492 | ||
1493 | /* Format Unit Helper Functions */ | |
1494 | ||
1495 | static int nvme_trans_fmt_set_blk_size_count(struct nvme_ns *ns, | |
1496 | struct sg_io_hdr *hdr) | |
1497 | { | |
e61b0a86 | 1498 | int res = 0; |
5d0f6131 | 1499 | int nvme_sc; |
5d0f6131 VV |
1500 | u8 flbas; |
1501 | ||
1502 | /* | |
1503 | * SCSI Expects a MODE SELECT would have been issued prior to | |
1504 | * a FORMAT UNIT, and the block size and number would be used | |
1505 | * from the block descriptor in it. If a MODE SELECT had not | |
1506 | * been issued, FORMAT shall use the current values for both. | |
1507 | */ | |
1508 | ||
1509 | if (ns->mode_select_num_blocks == 0 || ns->mode_select_block_len == 0) { | |
d29ec824 CH |
1510 | struct nvme_id_ns *id_ns; |
1511 | ||
1c63dc66 | 1512 | nvme_sc = nvme_identify_ns(ns->ctrl, ns->ns_id, &id_ns); |
5d0f6131 VV |
1513 | res = nvme_trans_status_code(hdr, nvme_sc); |
1514 | if (res) | |
d29ec824 | 1515 | return res; |
5d0f6131 VV |
1516 | |
1517 | if (ns->mode_select_num_blocks == 0) | |
8741ee4c | 1518 | ns->mode_select_num_blocks = le64_to_cpu(id_ns->ncap); |
5d0f6131 VV |
1519 | if (ns->mode_select_block_len == 0) { |
1520 | flbas = (id_ns->flbas) & 0x0F; | |
1521 | ns->mode_select_block_len = | |
1522 | (1 << (id_ns->lbaf[flbas].ds)); | |
1523 | } | |
d29ec824 CH |
1524 | |
1525 | kfree(id_ns); | |
5d0f6131 | 1526 | } |
d29ec824 CH |
1527 | |
1528 | return 0; | |
5d0f6131 VV |
1529 | } |
1530 | ||
1531 | static int nvme_trans_fmt_get_parm_header(struct sg_io_hdr *hdr, u8 len, | |
1532 | u8 format_prot_info, u8 *nvme_pf_code) | |
1533 | { | |
e61b0a86 | 1534 | int res; |
5d0f6131 VV |
1535 | u8 *parm_list; |
1536 | u8 pf_usage, pf_code; | |
1537 | ||
1538 | parm_list = kmalloc(len, GFP_KERNEL); | |
1539 | if (parm_list == NULL) { | |
1540 | res = -ENOMEM; | |
1541 | goto out; | |
1542 | } | |
1543 | res = nvme_trans_copy_from_user(hdr, parm_list, len); | |
e61b0a86 | 1544 | if (res) |
5d0f6131 VV |
1545 | goto out_mem; |
1546 | ||
1547 | if ((parm_list[FORMAT_UNIT_IMMED_OFFSET] & | |
1548 | FORMAT_UNIT_IMMED_MASK) != 0) { | |
1549 | res = nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION, | |
1550 | ILLEGAL_REQUEST, SCSI_ASC_INVALID_CDB, | |
1551 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
1552 | goto out_mem; | |
1553 | } | |
1554 | ||
1555 | if (len == FORMAT_UNIT_LONG_PARM_LIST_LEN && | |
1556 | (parm_list[FORMAT_UNIT_PROT_INT_OFFSET] & 0x0F) != 0) { | |
1557 | res = nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION, | |
1558 | ILLEGAL_REQUEST, SCSI_ASC_INVALID_CDB, | |
1559 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
1560 | goto out_mem; | |
1561 | } | |
1562 | pf_usage = parm_list[FORMAT_UNIT_PROT_FIELD_USAGE_OFFSET] & | |
1563 | FORMAT_UNIT_PROT_FIELD_USAGE_MASK; | |
1564 | pf_code = (pf_usage << 2) | format_prot_info; | |
1565 | switch (pf_code) { | |
1566 | case 0: | |
1567 | *nvme_pf_code = 0; | |
1568 | break; | |
1569 | case 2: | |
1570 | *nvme_pf_code = 1; | |
1571 | break; | |
1572 | case 3: | |
1573 | *nvme_pf_code = 2; | |
1574 | break; | |
1575 | case 7: | |
1576 | *nvme_pf_code = 3; | |
1577 | break; | |
1578 | default: | |
1579 | res = nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION, | |
1580 | ILLEGAL_REQUEST, SCSI_ASC_INVALID_CDB, | |
1581 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
1582 | break; | |
1583 | } | |
1584 | ||
1585 | out_mem: | |
1586 | kfree(parm_list); | |
1587 | out: | |
1588 | return res; | |
1589 | } | |
1590 | ||
1591 | static int nvme_trans_fmt_send_cmd(struct nvme_ns *ns, struct sg_io_hdr *hdr, | |
1592 | u8 prot_info) | |
1593 | { | |
e61b0a86 | 1594 | int res; |
5d0f6131 | 1595 | int nvme_sc; |
5d0f6131 VV |
1596 | struct nvme_id_ns *id_ns; |
1597 | u8 i; | |
1598 | u8 flbas, nlbaf; | |
1599 | u8 selected_lbaf = 0xFF; | |
1600 | u32 cdw10 = 0; | |
1601 | struct nvme_command c; | |
1602 | ||
1603 | /* Loop thru LBAF's in id_ns to match reqd lbaf, put in cdw10 */ | |
1c63dc66 | 1604 | nvme_sc = nvme_identify_ns(ns->ctrl, ns->ns_id, &id_ns); |
5d0f6131 VV |
1605 | res = nvme_trans_status_code(hdr, nvme_sc); |
1606 | if (res) | |
d29ec824 | 1607 | return res; |
e61b0a86 | 1608 | |
5d0f6131 VV |
1609 | flbas = (id_ns->flbas) & 0x0F; |
1610 | nlbaf = id_ns->nlbaf; | |
1611 | ||
1612 | for (i = 0; i < nlbaf; i++) { | |
1613 | if (ns->mode_select_block_len == (1 << (id_ns->lbaf[i].ds))) { | |
1614 | selected_lbaf = i; | |
1615 | break; | |
1616 | } | |
1617 | } | |
1618 | if (selected_lbaf > 0x0F) { | |
1619 | res = nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION, | |
1620 | ILLEGAL_REQUEST, SCSI_ASC_INVALID_PARAMETER, | |
1621 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
1622 | } | |
8741ee4c | 1623 | if (ns->mode_select_num_blocks != le64_to_cpu(id_ns->ncap)) { |
5d0f6131 VV |
1624 | res = nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION, |
1625 | ILLEGAL_REQUEST, SCSI_ASC_INVALID_PARAMETER, | |
1626 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
1627 | } | |
1628 | ||
1629 | cdw10 |= prot_info << 5; | |
1630 | cdw10 |= selected_lbaf & 0x0F; | |
1631 | memset(&c, 0, sizeof(c)); | |
1632 | c.format.opcode = nvme_admin_format_nvm; | |
8741ee4c | 1633 | c.format.nsid = cpu_to_le32(ns->ns_id); |
5d0f6131 VV |
1634 | c.format.cdw10 = cpu_to_le32(cdw10); |
1635 | ||
1c63dc66 | 1636 | nvme_sc = nvme_submit_sync_cmd(ns->ctrl->admin_q, &c, NULL, 0); |
5d0f6131 | 1637 | res = nvme_trans_status_code(hdr, nvme_sc); |
5d0f6131 | 1638 | |
d29ec824 | 1639 | kfree(id_ns); |
5d0f6131 VV |
1640 | return res; |
1641 | } | |
1642 | ||
5d0f6131 VV |
1643 | static inline u32 nvme_trans_io_get_num_cmds(struct sg_io_hdr *hdr, |
1644 | struct nvme_trans_io_cdb *cdb_info, | |
1645 | u32 max_blocks) | |
1646 | { | |
1647 | /* If using iovecs, send one nvme command per vector */ | |
1648 | if (hdr->iovec_count > 0) | |
1649 | return hdr->iovec_count; | |
1650 | else if (cdb_info->xfer_len > max_blocks) | |
1651 | return ((cdb_info->xfer_len - 1) / max_blocks) + 1; | |
1652 | else | |
1653 | return 1; | |
1654 | } | |
1655 | ||
1656 | static u16 nvme_trans_io_get_control(struct nvme_ns *ns, | |
1657 | struct nvme_trans_io_cdb *cdb_info) | |
1658 | { | |
1659 | u16 control = 0; | |
1660 | ||
1661 | /* When Protection information support is added, implement here */ | |
1662 | ||
1663 | if (cdb_info->fua > 0) | |
1664 | control |= NVME_RW_FUA; | |
1665 | ||
1666 | return control; | |
1667 | } | |
1668 | ||
1669 | static int nvme_trans_do_nvme_io(struct nvme_ns *ns, struct sg_io_hdr *hdr, | |
1670 | struct nvme_trans_io_cdb *cdb_info, u8 is_write) | |
1671 | { | |
e61b0a86 | 1672 | int nvme_sc = NVME_SC_SUCCESS; |
5d0f6131 | 1673 | u32 num_cmds; |
5d0f6131 VV |
1674 | u64 unit_len; |
1675 | u64 unit_num_blocks; /* Number of blocks to xfer in each nvme cmd */ | |
1676 | u32 retcode; | |
1677 | u32 i = 0; | |
1678 | u64 nvme_offset = 0; | |
8741ee4c | 1679 | void __user *next_mapping_addr; |
5d0f6131 VV |
1680 | struct nvme_command c; |
1681 | u8 opcode = (is_write ? nvme_cmd_write : nvme_cmd_read); | |
1682 | u16 control; | |
ddcb7762 | 1683 | u32 max_blocks = queue_max_hw_sectors(ns->queue); |
5d0f6131 VV |
1684 | |
1685 | num_cmds = nvme_trans_io_get_num_cmds(hdr, cdb_info, max_blocks); | |
1686 | ||
1687 | /* | |
1688 | * This loop handles two cases. | |
1689 | * First, when an SGL is used in the form of an iovec list: | |
1690 | * - Use iov_base as the next mapping address for the nvme command_id | |
1691 | * - Use iov_len as the data transfer length for the command. | |
1692 | * Second, when we have a single buffer | |
1693 | * - If larger than max_blocks, split into chunks, offset | |
1694 | * each nvme command accordingly. | |
1695 | */ | |
1696 | for (i = 0; i < num_cmds; i++) { | |
1697 | memset(&c, 0, sizeof(c)); | |
1698 | if (hdr->iovec_count > 0) { | |
8741ee4c VV |
1699 | struct sg_iovec sgl; |
1700 | ||
1701 | retcode = copy_from_user(&sgl, hdr->dxferp + | |
1702 | i * sizeof(struct sg_iovec), | |
1703 | sizeof(struct sg_iovec)); | |
1704 | if (retcode) | |
1705 | return -EFAULT; | |
1706 | unit_len = sgl.iov_len; | |
5d0f6131 | 1707 | unit_num_blocks = unit_len >> ns->lba_shift; |
8741ee4c | 1708 | next_mapping_addr = sgl.iov_base; |
5d0f6131 VV |
1709 | } else { |
1710 | unit_num_blocks = min((u64)max_blocks, | |
1711 | (cdb_info->xfer_len - nvme_offset)); | |
1712 | unit_len = unit_num_blocks << ns->lba_shift; | |
1713 | next_mapping_addr = hdr->dxferp + | |
1714 | ((1 << ns->lba_shift) * nvme_offset); | |
1715 | } | |
1716 | ||
1717 | c.rw.opcode = opcode; | |
1718 | c.rw.nsid = cpu_to_le32(ns->ns_id); | |
1719 | c.rw.slba = cpu_to_le64(cdb_info->lba + nvme_offset); | |
1720 | c.rw.length = cpu_to_le16(unit_num_blocks - 1); | |
1721 | control = nvme_trans_io_get_control(ns, cdb_info); | |
1722 | c.rw.control = cpu_to_le16(control); | |
1723 | ||
d29ec824 CH |
1724 | if (get_capacity(ns->disk) - unit_num_blocks < |
1725 | cdb_info->lba + nvme_offset) { | |
1726 | nvme_sc = NVME_SC_LBA_RANGE; | |
1727 | break; | |
5d0f6131 | 1728 | } |
4160982e | 1729 | nvme_sc = nvme_submit_user_cmd(ns->queue, &c, |
d29ec824 CH |
1730 | next_mapping_addr, unit_len, NULL, 0); |
1731 | if (nvme_sc) | |
1732 | break; | |
5d0f6131 VV |
1733 | |
1734 | nvme_offset += unit_num_blocks; | |
5d0f6131 | 1735 | } |
5d0f6131 | 1736 | |
e61b0a86 | 1737 | return nvme_trans_status_code(hdr, nvme_sc); |
5d0f6131 VV |
1738 | } |
1739 | ||
1740 | ||
1741 | /* SCSI Command Translation Functions */ | |
1742 | ||
1743 | static int nvme_trans_io(struct nvme_ns *ns, struct sg_io_hdr *hdr, u8 is_write, | |
1744 | u8 *cmd) | |
1745 | { | |
e61b0a86 | 1746 | int res = 0; |
cbbb7a2e | 1747 | struct nvme_trans_io_cdb cdb_info = { 0, }; |
5d0f6131 VV |
1748 | u8 opcode = cmd[0]; |
1749 | u64 xfer_bytes; | |
1750 | u64 sum_iov_len = 0; | |
8741ee4c | 1751 | struct sg_iovec sgl; |
5d0f6131 | 1752 | int i; |
8741ee4c | 1753 | size_t not_copied; |
5d0f6131 | 1754 | |
cbbb7a2e CH |
1755 | /* |
1756 | * The FUA and WPROTECT fields are not supported in 6-byte CDBs, | |
1757 | * but always in the same place for all others. | |
1758 | */ | |
1759 | switch (opcode) { | |
1760 | case WRITE_6: | |
1761 | case READ_6: | |
1762 | break; | |
1763 | default: | |
1764 | cdb_info.fua = cmd[1] & 0x8; | |
1765 | cdb_info.prot_info = (cmd[1] & 0xe0) >> 5; | |
772ce435 CH |
1766 | if (cdb_info.prot_info && !ns->pi_type) { |
1767 | return nvme_trans_completion(hdr, | |
1768 | SAM_STAT_CHECK_CONDITION, | |
1769 | ILLEGAL_REQUEST, | |
1770 | SCSI_ASC_INVALID_CDB, | |
1771 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
1772 | } | |
cbbb7a2e CH |
1773 | } |
1774 | ||
5d0f6131 VV |
1775 | switch (opcode) { |
1776 | case WRITE_6: | |
1777 | case READ_6: | |
cbbb7a2e CH |
1778 | cdb_info.lba = get_unaligned_be24(&cmd[1]); |
1779 | cdb_info.xfer_len = cmd[4]; | |
1780 | if (cdb_info.xfer_len == 0) | |
1781 | cdb_info.xfer_len = 256; | |
5d0f6131 VV |
1782 | break; |
1783 | case WRITE_10: | |
1784 | case READ_10: | |
cbbb7a2e CH |
1785 | cdb_info.lba = get_unaligned_be32(&cmd[2]); |
1786 | cdb_info.xfer_len = get_unaligned_be16(&cmd[7]); | |
5d0f6131 VV |
1787 | break; |
1788 | case WRITE_12: | |
1789 | case READ_12: | |
cbbb7a2e CH |
1790 | cdb_info.lba = get_unaligned_be32(&cmd[2]); |
1791 | cdb_info.xfer_len = get_unaligned_be32(&cmd[6]); | |
5d0f6131 VV |
1792 | break; |
1793 | case WRITE_16: | |
1794 | case READ_16: | |
cbbb7a2e CH |
1795 | cdb_info.lba = get_unaligned_be64(&cmd[2]); |
1796 | cdb_info.xfer_len = get_unaligned_be32(&cmd[10]); | |
5d0f6131 VV |
1797 | break; |
1798 | default: | |
1799 | /* Will never really reach here */ | |
e61b0a86 | 1800 | res = -EIO; |
5d0f6131 VV |
1801 | goto out; |
1802 | } | |
1803 | ||
1804 | /* Calculate total length of transfer (in bytes) */ | |
1805 | if (hdr->iovec_count > 0) { | |
5d0f6131 | 1806 | for (i = 0; i < hdr->iovec_count; i++) { |
8741ee4c VV |
1807 | not_copied = copy_from_user(&sgl, hdr->dxferp + |
1808 | i * sizeof(struct sg_iovec), | |
1809 | sizeof(struct sg_iovec)); | |
1810 | if (not_copied) | |
1811 | return -EFAULT; | |
1812 | sum_iov_len += sgl.iov_len; | |
5d0f6131 | 1813 | /* IO vector sizes should be multiples of block size */ |
8741ee4c | 1814 | if (sgl.iov_len % (1 << ns->lba_shift) != 0) { |
5d0f6131 VV |
1815 | res = nvme_trans_completion(hdr, |
1816 | SAM_STAT_CHECK_CONDITION, | |
1817 | ILLEGAL_REQUEST, | |
1818 | SCSI_ASC_INVALID_PARAMETER, | |
1819 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
1820 | goto out; | |
1821 | } | |
1822 | } | |
1823 | } else { | |
1824 | sum_iov_len = hdr->dxfer_len; | |
1825 | } | |
1826 | ||
1827 | /* As Per sg ioctl howto, if the lengths differ, use the lower one */ | |
1828 | xfer_bytes = min(((u64)hdr->dxfer_len), sum_iov_len); | |
1829 | ||
1830 | /* If block count and actual data buffer size dont match, error out */ | |
1831 | if (xfer_bytes != (cdb_info.xfer_len << ns->lba_shift)) { | |
1832 | res = -EINVAL; | |
1833 | goto out; | |
1834 | } | |
1835 | ||
1836 | /* Check for 0 length transfer - it is not illegal */ | |
1837 | if (cdb_info.xfer_len == 0) | |
1838 | goto out; | |
1839 | ||
1840 | /* Send NVMe IO Command(s) */ | |
1841 | res = nvme_trans_do_nvme_io(ns, hdr, &cdb_info, is_write); | |
e61b0a86 | 1842 | if (res) |
5d0f6131 VV |
1843 | goto out; |
1844 | ||
1845 | out: | |
1846 | return res; | |
1847 | } | |
1848 | ||
1849 | static int nvme_trans_inquiry(struct nvme_ns *ns, struct sg_io_hdr *hdr, | |
1850 | u8 *cmd) | |
1851 | { | |
e61b0a86 | 1852 | int res = 0; |
5d0f6131 VV |
1853 | u8 evpd; |
1854 | u8 page_code; | |
1855 | int alloc_len; | |
1856 | u8 *inq_response; | |
1857 | ||
3726897e CH |
1858 | evpd = cmd[1] & 0x01; |
1859 | page_code = cmd[2]; | |
1860 | alloc_len = get_unaligned_be16(&cmd[3]); | |
5d0f6131 | 1861 | |
3fd61b20 CH |
1862 | inq_response = kmalloc(max(alloc_len, STANDARD_INQUIRY_LENGTH), |
1863 | GFP_KERNEL); | |
5d0f6131 VV |
1864 | if (inq_response == NULL) { |
1865 | res = -ENOMEM; | |
1866 | goto out_mem; | |
1867 | } | |
1868 | ||
1869 | if (evpd == 0) { | |
1870 | if (page_code == INQ_STANDARD_INQUIRY_PAGE) { | |
1871 | res = nvme_trans_standard_inquiry_page(ns, hdr, | |
1872 | inq_response, alloc_len); | |
1873 | } else { | |
1874 | res = nvme_trans_completion(hdr, | |
1875 | SAM_STAT_CHECK_CONDITION, | |
1876 | ILLEGAL_REQUEST, | |
1877 | SCSI_ASC_INVALID_CDB, | |
1878 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
1879 | } | |
1880 | } else { | |
1881 | switch (page_code) { | |
1882 | case VPD_SUPPORTED_PAGES: | |
1883 | res = nvme_trans_supported_vpd_pages(ns, hdr, | |
1884 | inq_response, alloc_len); | |
1885 | break; | |
1886 | case VPD_SERIAL_NUMBER: | |
1887 | res = nvme_trans_unit_serial_page(ns, hdr, inq_response, | |
1888 | alloc_len); | |
1889 | break; | |
1890 | case VPD_DEVICE_IDENTIFIERS: | |
1891 | res = nvme_trans_device_id_page(ns, hdr, inq_response, | |
1892 | alloc_len); | |
1893 | break; | |
1894 | case VPD_EXTENDED_INQUIRY: | |
1895 | res = nvme_trans_ext_inq_page(ns, hdr, alloc_len); | |
1896 | break; | |
7f749d9c KB |
1897 | case VPD_BLOCK_LIMITS: |
1898 | res = nvme_trans_bdev_limits_page(ns, hdr, inq_response, | |
1899 | alloc_len); | |
1900 | break; | |
5d0f6131 VV |
1901 | case VPD_BLOCK_DEV_CHARACTERISTICS: |
1902 | res = nvme_trans_bdev_char_page(ns, hdr, alloc_len); | |
1903 | break; | |
1904 | default: | |
1905 | res = nvme_trans_completion(hdr, | |
1906 | SAM_STAT_CHECK_CONDITION, | |
1907 | ILLEGAL_REQUEST, | |
1908 | SCSI_ASC_INVALID_CDB, | |
1909 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
1910 | break; | |
1911 | } | |
1912 | } | |
1913 | kfree(inq_response); | |
1914 | out_mem: | |
1915 | return res; | |
1916 | } | |
1917 | ||
1918 | static int nvme_trans_log_sense(struct nvme_ns *ns, struct sg_io_hdr *hdr, | |
1919 | u8 *cmd) | |
1920 | { | |
e61b0a86 | 1921 | int res; |
5d0f6131 | 1922 | u16 alloc_len; |
5d0f6131 VV |
1923 | u8 pc; |
1924 | u8 page_code; | |
1925 | ||
3726897e | 1926 | if (cmd[1] != LOG_SENSE_CDB_SP_NOT_ENABLED) { |
5d0f6131 VV |
1927 | res = nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION, |
1928 | ILLEGAL_REQUEST, SCSI_ASC_INVALID_CDB, | |
1929 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
1930 | goto out; | |
1931 | } | |
3726897e CH |
1932 | |
1933 | page_code = cmd[2] & LOG_SENSE_CDB_PAGE_CODE_MASK; | |
1934 | pc = (cmd[2] & LOG_SENSE_CDB_PC_MASK) >> LOG_SENSE_CDB_PC_SHIFT; | |
5d0f6131 VV |
1935 | if (pc != LOG_SENSE_CDB_PC_CUMULATIVE_VALUES) { |
1936 | res = nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION, | |
1937 | ILLEGAL_REQUEST, SCSI_ASC_INVALID_CDB, | |
1938 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
1939 | goto out; | |
1940 | } | |
3726897e | 1941 | alloc_len = get_unaligned_be16(&cmd[7]); |
5d0f6131 VV |
1942 | switch (page_code) { |
1943 | case LOG_PAGE_SUPPORTED_LOG_PAGES_PAGE: | |
1944 | res = nvme_trans_log_supp_pages(ns, hdr, alloc_len); | |
1945 | break; | |
1946 | case LOG_PAGE_INFORMATIONAL_EXCEPTIONS_PAGE: | |
1947 | res = nvme_trans_log_info_exceptions(ns, hdr, alloc_len); | |
1948 | break; | |
1949 | case LOG_PAGE_TEMPERATURE_PAGE: | |
1950 | res = nvme_trans_log_temperature(ns, hdr, alloc_len); | |
1951 | break; | |
1952 | default: | |
1953 | res = nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION, | |
1954 | ILLEGAL_REQUEST, SCSI_ASC_INVALID_CDB, | |
1955 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
1956 | break; | |
1957 | } | |
1958 | ||
1959 | out: | |
1960 | return res; | |
1961 | } | |
1962 | ||
1963 | static int nvme_trans_mode_select(struct nvme_ns *ns, struct sg_io_hdr *hdr, | |
1964 | u8 *cmd) | |
1965 | { | |
5d0f6131 VV |
1966 | u8 cdb10 = 0; |
1967 | u16 parm_list_len; | |
1968 | u8 page_format; | |
1969 | u8 save_pages; | |
1970 | ||
3726897e CH |
1971 | page_format = cmd[1] & MODE_SELECT_CDB_PAGE_FORMAT_MASK; |
1972 | save_pages = cmd[1] & MODE_SELECT_CDB_SAVE_PAGES_MASK; | |
5d0f6131 | 1973 | |
3726897e CH |
1974 | if (cmd[0] == MODE_SELECT) { |
1975 | parm_list_len = cmd[4]; | |
5d0f6131 | 1976 | } else { |
3726897e | 1977 | parm_list_len = cmd[7]; |
5d0f6131 VV |
1978 | cdb10 = 1; |
1979 | } | |
1980 | ||
1981 | if (parm_list_len != 0) { | |
1982 | /* | |
1983 | * According to SPC-4 r24, a paramter list length field of 0 | |
1984 | * shall not be considered an error | |
1985 | */ | |
e61b0a86 | 1986 | return nvme_trans_modesel_data(ns, hdr, cmd, parm_list_len, |
5d0f6131 VV |
1987 | page_format, save_pages, cdb10); |
1988 | } | |
1989 | ||
e61b0a86 | 1990 | return 0; |
5d0f6131 VV |
1991 | } |
1992 | ||
1993 | static int nvme_trans_mode_sense(struct nvme_ns *ns, struct sg_io_hdr *hdr, | |
1994 | u8 *cmd) | |
1995 | { | |
e61b0a86 | 1996 | int res = 0; |
5d0f6131 VV |
1997 | u16 alloc_len; |
1998 | u8 cdb10 = 0; | |
5d0f6131 | 1999 | |
3726897e CH |
2000 | if (cmd[0] == MODE_SENSE) { |
2001 | alloc_len = cmd[4]; | |
5d0f6131 | 2002 | } else { |
3726897e | 2003 | alloc_len = get_unaligned_be16(&cmd[7]); |
5d0f6131 VV |
2004 | cdb10 = 1; |
2005 | } | |
2006 | ||
3726897e CH |
2007 | if ((cmd[2] & MODE_SENSE_PAGE_CONTROL_MASK) != |
2008 | MODE_SENSE_PC_CURRENT_VALUES) { | |
5d0f6131 VV |
2009 | res = nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION, |
2010 | ILLEGAL_REQUEST, SCSI_ASC_INVALID_CDB, | |
2011 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
2012 | goto out; | |
2013 | } | |
2014 | ||
3726897e | 2015 | switch (cmd[2] & MODE_SENSE_PAGE_CODE_MASK) { |
5d0f6131 VV |
2016 | case MODE_PAGE_CACHING: |
2017 | res = nvme_trans_mode_page_create(ns, hdr, cmd, alloc_len, | |
2018 | cdb10, | |
2019 | &nvme_trans_fill_caching_page, | |
2020 | MODE_PAGE_CACHING_LEN); | |
2021 | break; | |
2022 | case MODE_PAGE_CONTROL: | |
2023 | res = nvme_trans_mode_page_create(ns, hdr, cmd, alloc_len, | |
2024 | cdb10, | |
2025 | &nvme_trans_fill_control_page, | |
2026 | MODE_PAGE_CONTROL_LEN); | |
2027 | break; | |
2028 | case MODE_PAGE_POWER_CONDITION: | |
2029 | res = nvme_trans_mode_page_create(ns, hdr, cmd, alloc_len, | |
2030 | cdb10, | |
2031 | &nvme_trans_fill_pow_cnd_page, | |
2032 | MODE_PAGE_POW_CND_LEN); | |
2033 | break; | |
2034 | case MODE_PAGE_INFO_EXCEP: | |
2035 | res = nvme_trans_mode_page_create(ns, hdr, cmd, alloc_len, | |
2036 | cdb10, | |
2037 | &nvme_trans_fill_inf_exc_page, | |
2038 | MODE_PAGE_INF_EXC_LEN); | |
2039 | break; | |
2040 | case MODE_PAGE_RETURN_ALL: | |
2041 | res = nvme_trans_mode_page_create(ns, hdr, cmd, alloc_len, | |
2042 | cdb10, | |
2043 | &nvme_trans_fill_all_pages, | |
2044 | MODE_PAGE_ALL_LEN); | |
2045 | break; | |
2046 | default: | |
2047 | res = nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION, | |
2048 | ILLEGAL_REQUEST, SCSI_ASC_INVALID_CDB, | |
2049 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
2050 | break; | |
2051 | } | |
2052 | ||
2053 | out: | |
2054 | return res; | |
2055 | } | |
2056 | ||
2057 | static int nvme_trans_read_capacity(struct nvme_ns *ns, struct sg_io_hdr *hdr, | |
3726897e | 2058 | u8 *cmd, u8 cdb16) |
5d0f6131 | 2059 | { |
e61b0a86 | 2060 | int res; |
5d0f6131 | 2061 | int nvme_sc; |
3726897e CH |
2062 | u32 alloc_len; |
2063 | u32 resp_size; | |
5d0f6131 | 2064 | u32 xfer_len; |
5d0f6131 VV |
2065 | struct nvme_id_ns *id_ns; |
2066 | u8 *response; | |
2067 | ||
5d0f6131 | 2068 | if (cdb16) { |
3726897e | 2069 | alloc_len = get_unaligned_be32(&cmd[10]); |
5d0f6131 | 2070 | resp_size = READ_CAP_16_RESP_SIZE; |
3726897e CH |
2071 | } else { |
2072 | alloc_len = READ_CAP_10_RESP_SIZE; | |
2073 | resp_size = READ_CAP_10_RESP_SIZE; | |
5d0f6131 VV |
2074 | } |
2075 | ||
1c63dc66 | 2076 | nvme_sc = nvme_identify_ns(ns->ctrl, ns->ns_id, &id_ns); |
5d0f6131 VV |
2077 | res = nvme_trans_status_code(hdr, nvme_sc); |
2078 | if (res) | |
d29ec824 | 2079 | return res; |
5d0f6131 | 2080 | |
03ea83e9 | 2081 | response = kzalloc(resp_size, GFP_KERNEL); |
5d0f6131 VV |
2082 | if (response == NULL) { |
2083 | res = -ENOMEM; | |
d29ec824 | 2084 | goto out_free_id; |
5d0f6131 | 2085 | } |
5d0f6131 VV |
2086 | nvme_trans_fill_read_cap(response, id_ns, cdb16); |
2087 | ||
2088 | xfer_len = min(alloc_len, resp_size); | |
2089 | res = nvme_trans_copy_to_user(hdr, response, xfer_len); | |
2090 | ||
2091 | kfree(response); | |
d29ec824 CH |
2092 | out_free_id: |
2093 | kfree(id_ns); | |
5d0f6131 VV |
2094 | return res; |
2095 | } | |
2096 | ||
2097 | static int nvme_trans_report_luns(struct nvme_ns *ns, struct sg_io_hdr *hdr, | |
2098 | u8 *cmd) | |
2099 | { | |
e61b0a86 | 2100 | int res; |
5d0f6131 VV |
2101 | int nvme_sc; |
2102 | u32 alloc_len, xfer_len, resp_size; | |
5d0f6131 | 2103 | u8 *response; |
5d0f6131 VV |
2104 | struct nvme_id_ctrl *id_ctrl; |
2105 | u32 ll_length, lun_id; | |
2106 | u8 lun_id_offset = REPORT_LUNS_FIRST_LUN_OFFSET; | |
8741ee4c | 2107 | __be32 tmp_len; |
5d0f6131 | 2108 | |
3726897e CH |
2109 | switch (cmd[2]) { |
2110 | default: | |
2111 | return nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION, | |
5d0f6131 VV |
2112 | ILLEGAL_REQUEST, SCSI_ASC_INVALID_CDB, |
2113 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
3726897e CH |
2114 | case ALL_LUNS_RETURNED: |
2115 | case ALL_WELL_KNOWN_LUNS_RETURNED: | |
2116 | case RESTRICTED_LUNS_RETURNED: | |
1c63dc66 | 2117 | nvme_sc = nvme_identify_ctrl(ns->ctrl, &id_ctrl); |
5d0f6131 VV |
2118 | res = nvme_trans_status_code(hdr, nvme_sc); |
2119 | if (res) | |
d29ec824 | 2120 | return res; |
e61b0a86 | 2121 | |
8741ee4c | 2122 | ll_length = le32_to_cpu(id_ctrl->nn) * LUN_ENTRY_SIZE; |
5d0f6131 VV |
2123 | resp_size = ll_length + LUN_DATA_HEADER_SIZE; |
2124 | ||
3726897e | 2125 | alloc_len = get_unaligned_be32(&cmd[6]); |
5d0f6131 VV |
2126 | if (alloc_len < resp_size) { |
2127 | res = nvme_trans_completion(hdr, | |
2128 | SAM_STAT_CHECK_CONDITION, | |
2129 | ILLEGAL_REQUEST, SCSI_ASC_INVALID_CDB, | |
2130 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
d29ec824 | 2131 | goto out_free_id; |
5d0f6131 VV |
2132 | } |
2133 | ||
03ea83e9 | 2134 | response = kzalloc(resp_size, GFP_KERNEL); |
5d0f6131 VV |
2135 | if (response == NULL) { |
2136 | res = -ENOMEM; | |
d29ec824 | 2137 | goto out_free_id; |
5d0f6131 | 2138 | } |
5d0f6131 VV |
2139 | |
2140 | /* The first LUN ID will always be 0 per the SAM spec */ | |
8741ee4c | 2141 | for (lun_id = 0; lun_id < le32_to_cpu(id_ctrl->nn); lun_id++) { |
5d0f6131 VV |
2142 | /* |
2143 | * Set the LUN Id and then increment to the next LUN | |
2144 | * location in the parameter data. | |
2145 | */ | |
8741ee4c | 2146 | __be64 tmp_id = cpu_to_be64(lun_id); |
5d0f6131 VV |
2147 | memcpy(&response[lun_id_offset], &tmp_id, sizeof(u64)); |
2148 | lun_id_offset += LUN_ENTRY_SIZE; | |
2149 | } | |
2150 | tmp_len = cpu_to_be32(ll_length); | |
2151 | memcpy(response, &tmp_len, sizeof(u32)); | |
2152 | } | |
2153 | ||
2154 | xfer_len = min(alloc_len, resp_size); | |
2155 | res = nvme_trans_copy_to_user(hdr, response, xfer_len); | |
2156 | ||
2157 | kfree(response); | |
d29ec824 CH |
2158 | out_free_id: |
2159 | kfree(id_ctrl); | |
5d0f6131 VV |
2160 | return res; |
2161 | } | |
2162 | ||
2163 | static int nvme_trans_request_sense(struct nvme_ns *ns, struct sg_io_hdr *hdr, | |
2164 | u8 *cmd) | |
2165 | { | |
e61b0a86 | 2166 | int res; |
5d0f6131 VV |
2167 | u8 alloc_len, xfer_len, resp_size; |
2168 | u8 desc_format; | |
2169 | u8 *response; | |
2170 | ||
3726897e CH |
2171 | desc_format = cmd[1] & 0x01; |
2172 | alloc_len = cmd[4]; | |
5d0f6131 VV |
2173 | |
2174 | resp_size = ((desc_format) ? (DESC_FMT_SENSE_DATA_SIZE) : | |
2175 | (FIXED_FMT_SENSE_DATA_SIZE)); | |
03ea83e9 | 2176 | response = kzalloc(resp_size, GFP_KERNEL); |
5d0f6131 VV |
2177 | if (response == NULL) { |
2178 | res = -ENOMEM; | |
2179 | goto out; | |
2180 | } | |
5d0f6131 | 2181 | |
3726897e | 2182 | if (desc_format) { |
5d0f6131 VV |
2183 | /* Descriptor Format Sense Data */ |
2184 | response[0] = DESC_FORMAT_SENSE_DATA; | |
2185 | response[1] = NO_SENSE; | |
2186 | /* TODO How is LOW POWER CONDITION ON handled? (byte 2) */ | |
2187 | response[2] = SCSI_ASC_NO_SENSE; | |
2188 | response[3] = SCSI_ASCQ_CAUSE_NOT_REPORTABLE; | |
2189 | /* SDAT_OVFL = 0 | Additional Sense Length = 0 */ | |
2190 | } else { | |
2191 | /* Fixed Format Sense Data */ | |
2192 | response[0] = FIXED_SENSE_DATA; | |
2193 | /* Byte 1 = Obsolete */ | |
2194 | response[2] = NO_SENSE; /* FM, EOM, ILI, SDAT_OVFL = 0 */ | |
2195 | /* Bytes 3-6 - Information - set to zero */ | |
2196 | response[7] = FIXED_SENSE_DATA_ADD_LENGTH; | |
2197 | /* Bytes 8-11 - Cmd Specific Information - set to zero */ | |
2198 | response[12] = SCSI_ASC_NO_SENSE; | |
2199 | response[13] = SCSI_ASCQ_CAUSE_NOT_REPORTABLE; | |
2200 | /* Byte 14 = Field Replaceable Unit Code = 0 */ | |
2201 | /* Bytes 15-17 - SKSV=0; Sense Key Specific = 0 */ | |
2202 | } | |
2203 | ||
2204 | xfer_len = min(alloc_len, resp_size); | |
2205 | res = nvme_trans_copy_to_user(hdr, response, xfer_len); | |
2206 | ||
2207 | kfree(response); | |
2208 | out: | |
2209 | return res; | |
2210 | } | |
2211 | ||
2212 | static int nvme_trans_security_protocol(struct nvme_ns *ns, | |
2213 | struct sg_io_hdr *hdr, | |
2214 | u8 *cmd) | |
2215 | { | |
2216 | return nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION, | |
2217 | ILLEGAL_REQUEST, SCSI_ASC_ILLEGAL_COMMAND, | |
2218 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
2219 | } | |
2220 | ||
d29ec824 CH |
2221 | static int nvme_trans_synchronize_cache(struct nvme_ns *ns, |
2222 | struct sg_io_hdr *hdr) | |
5d0f6131 | 2223 | { |
5d0f6131 | 2224 | int nvme_sc; |
14385de1 | 2225 | struct nvme_command c; |
5d0f6131 | 2226 | |
d29ec824 CH |
2227 | memset(&c, 0, sizeof(c)); |
2228 | c.common.opcode = nvme_cmd_flush; | |
2229 | c.common.nsid = cpu_to_le32(ns->ns_id); | |
5d0f6131 | 2230 | |
d29ec824 CH |
2231 | nvme_sc = nvme_submit_sync_cmd(ns->queue, &c, NULL, 0); |
2232 | return nvme_trans_status_code(hdr, nvme_sc); | |
2233 | } | |
2234 | ||
2235 | static int nvme_trans_start_stop(struct nvme_ns *ns, struct sg_io_hdr *hdr, | |
2236 | u8 *cmd) | |
2237 | { | |
5d0f6131 VV |
2238 | u8 immed, pcmod, pc, no_flush, start; |
2239 | ||
3726897e CH |
2240 | immed = cmd[1] & 0x01; |
2241 | pcmod = cmd[3] & 0x0f; | |
2242 | pc = (cmd[4] & 0xf0) >> 4; | |
2243 | no_flush = cmd[4] & 0x04; | |
2244 | start = cmd[4] & 0x01; | |
5d0f6131 VV |
2245 | |
2246 | if (immed != 0) { | |
e61b0a86 | 2247 | return nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION, |
5d0f6131 VV |
2248 | ILLEGAL_REQUEST, SCSI_ASC_INVALID_CDB, |
2249 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
2250 | } else { | |
2251 | if (no_flush == 0) { | |
2252 | /* Issue NVME FLUSH command prior to START STOP UNIT */ | |
d29ec824 | 2253 | int res = nvme_trans_synchronize_cache(ns, hdr); |
5d0f6131 | 2254 | if (res) |
e61b0a86 | 2255 | return res; |
5d0f6131 VV |
2256 | } |
2257 | /* Setup the expected power state transition */ | |
e61b0a86 | 2258 | return nvme_trans_power_state(ns, hdr, pc, pcmod, start); |
5d0f6131 | 2259 | } |
5d0f6131 VV |
2260 | } |
2261 | ||
2262 | static int nvme_trans_format_unit(struct nvme_ns *ns, struct sg_io_hdr *hdr, | |
2263 | u8 *cmd) | |
2264 | { | |
e61b0a86 | 2265 | int res; |
5d0f6131 VV |
2266 | u8 parm_hdr_len = 0; |
2267 | u8 nvme_pf_code = 0; | |
2268 | u8 format_prot_info, long_list, format_data; | |
2269 | ||
3726897e CH |
2270 | format_prot_info = (cmd[1] & 0xc0) >> 6; |
2271 | long_list = cmd[1] & 0x20; | |
2272 | format_data = cmd[1] & 0x10; | |
5d0f6131 VV |
2273 | |
2274 | if (format_data != 0) { | |
2275 | if (format_prot_info != 0) { | |
2276 | if (long_list == 0) | |
2277 | parm_hdr_len = FORMAT_UNIT_SHORT_PARM_LIST_LEN; | |
2278 | else | |
2279 | parm_hdr_len = FORMAT_UNIT_LONG_PARM_LIST_LEN; | |
2280 | } | |
2281 | } else if (format_data == 0 && format_prot_info != 0) { | |
2282 | res = nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION, | |
2283 | ILLEGAL_REQUEST, SCSI_ASC_INVALID_CDB, | |
2284 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
2285 | goto out; | |
2286 | } | |
2287 | ||
2288 | /* Get parm header from data-in/out buffer */ | |
2289 | /* | |
2290 | * According to the translation spec, the only fields in the parameter | |
2291 | * list we are concerned with are in the header. So allocate only that. | |
2292 | */ | |
2293 | if (parm_hdr_len > 0) { | |
2294 | res = nvme_trans_fmt_get_parm_header(hdr, parm_hdr_len, | |
2295 | format_prot_info, &nvme_pf_code); | |
e61b0a86 | 2296 | if (res) |
5d0f6131 VV |
2297 | goto out; |
2298 | } | |
2299 | ||
2300 | /* Attempt to activate any previously downloaded firmware image */ | |
b90c48d0 | 2301 | res = nvme_trans_send_activate_fw_cmd(ns, hdr, 0); |
5d0f6131 VV |
2302 | |
2303 | /* Determine Block size and count and send format command */ | |
2304 | res = nvme_trans_fmt_set_blk_size_count(ns, hdr); | |
e61b0a86 | 2305 | if (res) |
5d0f6131 VV |
2306 | goto out; |
2307 | ||
2308 | res = nvme_trans_fmt_send_cmd(ns, hdr, nvme_pf_code); | |
2309 | ||
2310 | out: | |
2311 | return res; | |
2312 | } | |
2313 | ||
2314 | static int nvme_trans_test_unit_ready(struct nvme_ns *ns, | |
2315 | struct sg_io_hdr *hdr, | |
2316 | u8 *cmd) | |
2317 | { | |
1c63dc66 | 2318 | if (nvme_ctrl_ready(ns->ctrl)) |
e61b0a86 | 2319 | return nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION, |
5d0f6131 VV |
2320 | NOT_READY, SCSI_ASC_LUN_NOT_READY, |
2321 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
2322 | else | |
e61b0a86 | 2323 | return nvme_trans_completion(hdr, SAM_STAT_GOOD, NO_SENSE, 0, 0); |
5d0f6131 VV |
2324 | } |
2325 | ||
2326 | static int nvme_trans_write_buffer(struct nvme_ns *ns, struct sg_io_hdr *hdr, | |
2327 | u8 *cmd) | |
2328 | { | |
e61b0a86 | 2329 | int res = 0; |
5d0f6131 VV |
2330 | u32 buffer_offset, parm_list_length; |
2331 | u8 buffer_id, mode; | |
2332 | ||
3726897e | 2333 | parm_list_length = get_unaligned_be24(&cmd[6]); |
5d0f6131 VV |
2334 | if (parm_list_length % BYTES_TO_DWORDS != 0) { |
2335 | /* NVMe expects Firmware file to be a whole number of DWORDS */ | |
2336 | res = nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION, | |
2337 | ILLEGAL_REQUEST, SCSI_ASC_INVALID_CDB, | |
2338 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
2339 | goto out; | |
2340 | } | |
3726897e | 2341 | buffer_id = cmd[2]; |
5d0f6131 VV |
2342 | if (buffer_id > NVME_MAX_FIRMWARE_SLOT) { |
2343 | res = nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION, | |
2344 | ILLEGAL_REQUEST, SCSI_ASC_INVALID_CDB, | |
2345 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
2346 | goto out; | |
2347 | } | |
3726897e CH |
2348 | mode = cmd[1] & 0x1f; |
2349 | buffer_offset = get_unaligned_be24(&cmd[3]); | |
5d0f6131 VV |
2350 | |
2351 | switch (mode) { | |
2352 | case DOWNLOAD_SAVE_ACTIVATE: | |
b90c48d0 | 2353 | res = nvme_trans_send_download_fw_cmd(ns, hdr, nvme_admin_download_fw, |
5d0f6131 VV |
2354 | parm_list_length, buffer_offset, |
2355 | buffer_id); | |
e61b0a86 | 2356 | if (res) |
5d0f6131 | 2357 | goto out; |
b90c48d0 | 2358 | res = nvme_trans_send_activate_fw_cmd(ns, hdr, buffer_id); |
5d0f6131 VV |
2359 | break; |
2360 | case DOWNLOAD_SAVE_DEFER_ACTIVATE: | |
b90c48d0 | 2361 | res = nvme_trans_send_download_fw_cmd(ns, hdr, nvme_admin_download_fw, |
5d0f6131 VV |
2362 | parm_list_length, buffer_offset, |
2363 | buffer_id); | |
2364 | break; | |
2365 | case ACTIVATE_DEFERRED_MICROCODE: | |
b90c48d0 | 2366 | res = nvme_trans_send_activate_fw_cmd(ns, hdr, buffer_id); |
5d0f6131 VV |
2367 | break; |
2368 | default: | |
2369 | res = nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION, | |
2370 | ILLEGAL_REQUEST, SCSI_ASC_INVALID_CDB, | |
2371 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
2372 | break; | |
2373 | } | |
2374 | ||
2375 | out: | |
2376 | return res; | |
2377 | } | |
2378 | ||
ec503733 KB |
2379 | struct scsi_unmap_blk_desc { |
2380 | __be64 slba; | |
2381 | __be32 nlb; | |
2382 | u32 resv; | |
2383 | }; | |
2384 | ||
2385 | struct scsi_unmap_parm_list { | |
2386 | __be16 unmap_data_len; | |
2387 | __be16 unmap_blk_desc_data_len; | |
2388 | u32 resv; | |
2389 | struct scsi_unmap_blk_desc desc[0]; | |
2390 | }; | |
2391 | ||
2392 | static int nvme_trans_unmap(struct nvme_ns *ns, struct sg_io_hdr *hdr, | |
2393 | u8 *cmd) | |
2394 | { | |
ec503733 KB |
2395 | struct scsi_unmap_parm_list *plist; |
2396 | struct nvme_dsm_range *range; | |
ec503733 | 2397 | struct nvme_command c; |
51ef72bd | 2398 | int i, nvme_sc, res; |
ec503733 | 2399 | u16 ndesc, list_len; |
ec503733 | 2400 | |
3726897e | 2401 | list_len = get_unaligned_be16(&cmd[7]); |
ec503733 KB |
2402 | if (!list_len) |
2403 | return -EINVAL; | |
2404 | ||
2405 | plist = kmalloc(list_len, GFP_KERNEL); | |
2406 | if (!plist) | |
2407 | return -ENOMEM; | |
2408 | ||
2409 | res = nvme_trans_copy_from_user(hdr, plist, list_len); | |
e61b0a86 | 2410 | if (res) |
ec503733 KB |
2411 | goto out; |
2412 | ||
2413 | ndesc = be16_to_cpu(plist->unmap_blk_desc_data_len) >> 4; | |
2414 | if (!ndesc || ndesc > 256) { | |
2415 | res = -EINVAL; | |
2416 | goto out; | |
2417 | } | |
2418 | ||
d29ec824 | 2419 | range = kcalloc(ndesc, sizeof(*range), GFP_KERNEL); |
51ef72bd AL |
2420 | if (!range) { |
2421 | res = -ENOMEM; | |
ec503733 | 2422 | goto out; |
51ef72bd | 2423 | } |
ec503733 KB |
2424 | |
2425 | for (i = 0; i < ndesc; i++) { | |
2426 | range[i].nlb = cpu_to_le32(be32_to_cpu(plist->desc[i].nlb)); | |
2427 | range[i].slba = cpu_to_le64(be64_to_cpu(plist->desc[i].slba)); | |
2428 | range[i].cattr = 0; | |
2429 | } | |
2430 | ||
2431 | memset(&c, 0, sizeof(c)); | |
2432 | c.dsm.opcode = nvme_cmd_dsm; | |
2433 | c.dsm.nsid = cpu_to_le32(ns->ns_id); | |
ec503733 KB |
2434 | c.dsm.nr = cpu_to_le32(ndesc - 1); |
2435 | c.dsm.attributes = cpu_to_le32(NVME_DSMGMT_AD); | |
2436 | ||
d29ec824 CH |
2437 | nvme_sc = nvme_submit_sync_cmd(ns->queue, &c, range, |
2438 | ndesc * sizeof(*range)); | |
ec503733 KB |
2439 | res = nvme_trans_status_code(hdr, nvme_sc); |
2440 | ||
d29ec824 | 2441 | kfree(range); |
ec503733 KB |
2442 | out: |
2443 | kfree(plist); | |
2444 | return res; | |
2445 | } | |
2446 | ||
5d0f6131 VV |
2447 | static int nvme_scsi_translate(struct nvme_ns *ns, struct sg_io_hdr *hdr) |
2448 | { | |
2449 | u8 cmd[BLK_MAX_CDB]; | |
2450 | int retcode; | |
2451 | unsigned int opcode; | |
2452 | ||
2453 | if (hdr->cmdp == NULL) | |
2454 | return -EMSGSIZE; | |
2455 | if (copy_from_user(cmd, hdr->cmdp, hdr->cmd_len)) | |
2456 | return -EFAULT; | |
2457 | ||
695a4fe7 KB |
2458 | /* |
2459 | * Prime the hdr with good status for scsi commands that don't require | |
2460 | * an nvme command for translation. | |
2461 | */ | |
2462 | retcode = nvme_trans_status_code(hdr, NVME_SC_SUCCESS); | |
2463 | if (retcode) | |
2464 | return retcode; | |
2465 | ||
5d0f6131 VV |
2466 | opcode = cmd[0]; |
2467 | ||
2468 | switch (opcode) { | |
2469 | case READ_6: | |
2470 | case READ_10: | |
2471 | case READ_12: | |
2472 | case READ_16: | |
2473 | retcode = nvme_trans_io(ns, hdr, 0, cmd); | |
2474 | break; | |
2475 | case WRITE_6: | |
2476 | case WRITE_10: | |
2477 | case WRITE_12: | |
2478 | case WRITE_16: | |
2479 | retcode = nvme_trans_io(ns, hdr, 1, cmd); | |
2480 | break; | |
2481 | case INQUIRY: | |
2482 | retcode = nvme_trans_inquiry(ns, hdr, cmd); | |
2483 | break; | |
2484 | case LOG_SENSE: | |
2485 | retcode = nvme_trans_log_sense(ns, hdr, cmd); | |
2486 | break; | |
2487 | case MODE_SELECT: | |
2488 | case MODE_SELECT_10: | |
2489 | retcode = nvme_trans_mode_select(ns, hdr, cmd); | |
2490 | break; | |
2491 | case MODE_SENSE: | |
2492 | case MODE_SENSE_10: | |
2493 | retcode = nvme_trans_mode_sense(ns, hdr, cmd); | |
2494 | break; | |
2495 | case READ_CAPACITY: | |
3726897e | 2496 | retcode = nvme_trans_read_capacity(ns, hdr, cmd, 0); |
5d0f6131 | 2497 | break; |
eb846d9f | 2498 | case SERVICE_ACTION_IN_16: |
3726897e CH |
2499 | switch (cmd[1]) { |
2500 | case SAI_READ_CAPACITY_16: | |
2501 | retcode = nvme_trans_read_capacity(ns, hdr, cmd, 1); | |
2502 | break; | |
2503 | default: | |
5d0f6131 | 2504 | goto out; |
3726897e | 2505 | } |
5d0f6131 VV |
2506 | break; |
2507 | case REPORT_LUNS: | |
2508 | retcode = nvme_trans_report_luns(ns, hdr, cmd); | |
2509 | break; | |
2510 | case REQUEST_SENSE: | |
2511 | retcode = nvme_trans_request_sense(ns, hdr, cmd); | |
2512 | break; | |
2513 | case SECURITY_PROTOCOL_IN: | |
2514 | case SECURITY_PROTOCOL_OUT: | |
2515 | retcode = nvme_trans_security_protocol(ns, hdr, cmd); | |
2516 | break; | |
2517 | case START_STOP: | |
2518 | retcode = nvme_trans_start_stop(ns, hdr, cmd); | |
2519 | break; | |
2520 | case SYNCHRONIZE_CACHE: | |
d29ec824 | 2521 | retcode = nvme_trans_synchronize_cache(ns, hdr); |
5d0f6131 VV |
2522 | break; |
2523 | case FORMAT_UNIT: | |
2524 | retcode = nvme_trans_format_unit(ns, hdr, cmd); | |
2525 | break; | |
2526 | case TEST_UNIT_READY: | |
2527 | retcode = nvme_trans_test_unit_ready(ns, hdr, cmd); | |
2528 | break; | |
2529 | case WRITE_BUFFER: | |
2530 | retcode = nvme_trans_write_buffer(ns, hdr, cmd); | |
2531 | break; | |
ec503733 KB |
2532 | case UNMAP: |
2533 | retcode = nvme_trans_unmap(ns, hdr, cmd); | |
2534 | break; | |
5d0f6131 VV |
2535 | default: |
2536 | out: | |
2537 | retcode = nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION, | |
2538 | ILLEGAL_REQUEST, SCSI_ASC_ILLEGAL_COMMAND, | |
2539 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
2540 | break; | |
2541 | } | |
2542 | return retcode; | |
2543 | } | |
2544 | ||
2545 | int nvme_sg_io(struct nvme_ns *ns, struct sg_io_hdr __user *u_hdr) | |
2546 | { | |
2547 | struct sg_io_hdr hdr; | |
2548 | int retcode; | |
2549 | ||
2550 | if (!capable(CAP_SYS_ADMIN)) | |
2551 | return -EACCES; | |
2552 | if (copy_from_user(&hdr, u_hdr, sizeof(hdr))) | |
2553 | return -EFAULT; | |
2554 | if (hdr.interface_id != 'S') | |
2555 | return -EINVAL; | |
2556 | if (hdr.cmd_len > BLK_MAX_CDB) | |
2557 | return -EINVAL; | |
2558 | ||
e61b0a86 CH |
2559 | /* |
2560 | * A positive return code means a NVMe status, which has been | |
2561 | * translated to sense data. | |
2562 | */ | |
5d0f6131 VV |
2563 | retcode = nvme_scsi_translate(ns, &hdr); |
2564 | if (retcode < 0) | |
2565 | return retcode; | |
8741ee4c | 2566 | if (copy_to_user(u_hdr, &hdr, sizeof(sg_io_hdr_t)) > 0) |
5d0f6131 | 2567 | return -EFAULT; |
e61b0a86 | 2568 | return 0; |
5d0f6131 VV |
2569 | } |
2570 | ||
2571 | int nvme_sg_get_version_num(int __user *ip) | |
2572 | { | |
2573 | return put_user(sg_version_num, ip); | |
2574 | } |