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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> | |
f605208e | 46 | #include <scsi/scsi_request.h> |
5d0f6131 | 47 | |
f11bb3e2 | 48 | #include "nvme.h" |
5d0f6131 VV |
49 | |
50 | static int sg_version_num = 30534; /* 2 digits for each component */ | |
51 | ||
5d0f6131 VV |
52 | /* VPD Page Codes */ |
53 | #define VPD_SUPPORTED_PAGES 0x00 | |
54 | #define VPD_SERIAL_NUMBER 0x80 | |
55 | #define VPD_DEVICE_IDENTIFIERS 0x83 | |
56 | #define VPD_EXTENDED_INQUIRY 0x86 | |
7f749d9c | 57 | #define VPD_BLOCK_LIMITS 0xB0 |
5d0f6131 VV |
58 | #define VPD_BLOCK_DEV_CHARACTERISTICS 0xB1 |
59 | ||
3726897e | 60 | /* format unit paramter list offsets */ |
5d0f6131 VV |
61 | #define FORMAT_UNIT_SHORT_PARM_LIST_LEN 4 |
62 | #define FORMAT_UNIT_LONG_PARM_LIST_LEN 8 | |
63 | #define FORMAT_UNIT_PROT_INT_OFFSET 3 | |
64 | #define FORMAT_UNIT_PROT_FIELD_USAGE_OFFSET 0 | |
65 | #define FORMAT_UNIT_PROT_FIELD_USAGE_MASK 0x07 | |
66 | ||
67 | /* Misc. defines */ | |
5d0f6131 VV |
68 | #define FIXED_SENSE_DATA 0x70 |
69 | #define DESC_FORMAT_SENSE_DATA 0x72 | |
70 | #define FIXED_SENSE_DATA_ADD_LENGTH 10 | |
71 | #define LUN_ENTRY_SIZE 8 | |
72 | #define LUN_DATA_HEADER_SIZE 8 | |
73 | #define ALL_LUNS_RETURNED 0x02 | |
74 | #define ALL_WELL_KNOWN_LUNS_RETURNED 0x01 | |
75 | #define RESTRICTED_LUNS_RETURNED 0x00 | |
5d0f6131 VV |
76 | #define DOWNLOAD_SAVE_ACTIVATE 0x05 |
77 | #define DOWNLOAD_SAVE_DEFER_ACTIVATE 0x0E | |
78 | #define ACTIVATE_DEFERRED_MICROCODE 0x0F | |
79 | #define FORMAT_UNIT_IMMED_MASK 0x2 | |
80 | #define FORMAT_UNIT_IMMED_OFFSET 1 | |
81 | #define KELVIN_TEMP_FACTOR 273 | |
82 | #define FIXED_FMT_SENSE_DATA_SIZE 18 | |
83 | #define DESC_FMT_SENSE_DATA_SIZE 8 | |
84 | ||
85 | /* SCSI/NVMe defines and bit masks */ | |
86 | #define INQ_STANDARD_INQUIRY_PAGE 0x00 | |
87 | #define INQ_SUPPORTED_VPD_PAGES_PAGE 0x00 | |
88 | #define INQ_UNIT_SERIAL_NUMBER_PAGE 0x80 | |
89 | #define INQ_DEVICE_IDENTIFICATION_PAGE 0x83 | |
90 | #define INQ_EXTENDED_INQUIRY_DATA_PAGE 0x86 | |
7f749d9c | 91 | #define INQ_BDEV_LIMITS_PAGE 0xB0 |
5d0f6131 VV |
92 | #define INQ_BDEV_CHARACTERISTICS_PAGE 0xB1 |
93 | #define INQ_SERIAL_NUMBER_LENGTH 0x14 | |
7f749d9c | 94 | #define INQ_NUM_SUPPORTED_VPD_PAGES 6 |
5d0f6131 VV |
95 | #define VERSION_SPC_4 0x06 |
96 | #define ACA_UNSUPPORTED 0 | |
97 | #define STANDARD_INQUIRY_LENGTH 36 | |
98 | #define ADDITIONAL_STD_INQ_LENGTH 31 | |
99 | #define EXTENDED_INQUIRY_DATA_PAGE_LENGTH 0x3C | |
100 | #define RESERVED_FIELD 0 | |
101 | ||
5d0f6131 VV |
102 | /* Mode Sense/Select defines */ |
103 | #define MODE_PAGE_INFO_EXCEP 0x1C | |
104 | #define MODE_PAGE_CACHING 0x08 | |
105 | #define MODE_PAGE_CONTROL 0x0A | |
106 | #define MODE_PAGE_POWER_CONDITION 0x1A | |
107 | #define MODE_PAGE_RETURN_ALL 0x3F | |
108 | #define MODE_PAGE_BLK_DES_LEN 0x08 | |
109 | #define MODE_PAGE_LLBAA_BLK_DES_LEN 0x10 | |
110 | #define MODE_PAGE_CACHING_LEN 0x14 | |
111 | #define MODE_PAGE_CONTROL_LEN 0x0C | |
112 | #define MODE_PAGE_POW_CND_LEN 0x28 | |
113 | #define MODE_PAGE_INF_EXC_LEN 0x0C | |
114 | #define MODE_PAGE_ALL_LEN 0x54 | |
115 | #define MODE_SENSE6_MPH_SIZE 4 | |
5d0f6131 VV |
116 | #define MODE_SENSE_PAGE_CONTROL_MASK 0xC0 |
117 | #define MODE_SENSE_PAGE_CODE_OFFSET 2 | |
118 | #define MODE_SENSE_PAGE_CODE_MASK 0x3F | |
5d0f6131 VV |
119 | #define MODE_SENSE_LLBAA_MASK 0x10 |
120 | #define MODE_SENSE_LLBAA_SHIFT 4 | |
5d0f6131 VV |
121 | #define MODE_SENSE_DBD_MASK 8 |
122 | #define MODE_SENSE_DBD_SHIFT 3 | |
123 | #define MODE_SENSE10_MPH_SIZE 8 | |
5d0f6131 VV |
124 | #define MODE_SELECT_CDB_PAGE_FORMAT_MASK 0x10 |
125 | #define MODE_SELECT_CDB_SAVE_PAGES_MASK 0x1 | |
126 | #define MODE_SELECT_6_BD_OFFSET 3 | |
127 | #define MODE_SELECT_10_BD_OFFSET 6 | |
128 | #define MODE_SELECT_10_LLBAA_OFFSET 4 | |
129 | #define MODE_SELECT_10_LLBAA_MASK 1 | |
130 | #define MODE_SELECT_6_MPH_SIZE 4 | |
131 | #define MODE_SELECT_10_MPH_SIZE 8 | |
132 | #define CACHING_MODE_PAGE_WCE_MASK 0x04 | |
133 | #define MODE_SENSE_BLK_DESC_ENABLED 0 | |
134 | #define MODE_SENSE_BLK_DESC_COUNT 1 | |
135 | #define MODE_SELECT_PAGE_CODE_MASK 0x3F | |
136 | #define SHORT_DESC_BLOCK 8 | |
137 | #define LONG_DESC_BLOCK 16 | |
138 | #define MODE_PAGE_POW_CND_LEN_FIELD 0x26 | |
139 | #define MODE_PAGE_INF_EXC_LEN_FIELD 0x0A | |
140 | #define MODE_PAGE_CACHING_LEN_FIELD 0x12 | |
141 | #define MODE_PAGE_CONTROL_LEN_FIELD 0x0A | |
142 | #define MODE_SENSE_PC_CURRENT_VALUES 0 | |
143 | ||
144 | /* Log Sense defines */ | |
145 | #define LOG_PAGE_SUPPORTED_LOG_PAGES_PAGE 0x00 | |
146 | #define LOG_PAGE_SUPPORTED_LOG_PAGES_LENGTH 0x07 | |
147 | #define LOG_PAGE_INFORMATIONAL_EXCEPTIONS_PAGE 0x2F | |
148 | #define LOG_PAGE_TEMPERATURE_PAGE 0x0D | |
5d0f6131 | 149 | #define LOG_SENSE_CDB_SP_NOT_ENABLED 0 |
5d0f6131 VV |
150 | #define LOG_SENSE_CDB_PC_MASK 0xC0 |
151 | #define LOG_SENSE_CDB_PC_SHIFT 6 | |
152 | #define LOG_SENSE_CDB_PC_CUMULATIVE_VALUES 1 | |
153 | #define LOG_SENSE_CDB_PAGE_CODE_MASK 0x3F | |
5d0f6131 VV |
154 | #define REMAINING_INFO_EXCP_PAGE_LENGTH 0x8 |
155 | #define LOG_INFO_EXCP_PAGE_LENGTH 0xC | |
156 | #define REMAINING_TEMP_PAGE_LENGTH 0xC | |
157 | #define LOG_TEMP_PAGE_LENGTH 0x10 | |
158 | #define LOG_TEMP_UNKNOWN 0xFF | |
159 | #define SUPPORTED_LOG_PAGES_PAGE_LENGTH 0x3 | |
160 | ||
161 | /* Read Capacity defines */ | |
162 | #define READ_CAP_10_RESP_SIZE 8 | |
163 | #define READ_CAP_16_RESP_SIZE 32 | |
164 | ||
165 | /* NVMe Namespace and Command Defines */ | |
5d0f6131 VV |
166 | #define BYTES_TO_DWORDS 4 |
167 | #define NVME_MAX_FIRMWARE_SLOT 7 | |
168 | ||
169 | /* Report LUNs defines */ | |
170 | #define REPORT_LUNS_FIRST_LUN_OFFSET 8 | |
171 | ||
172 | /* SCSI ADDITIONAL SENSE Codes */ | |
173 | ||
174 | #define SCSI_ASC_NO_SENSE 0x00 | |
175 | #define SCSI_ASC_PERIPHERAL_DEV_WRITE_FAULT 0x03 | |
176 | #define SCSI_ASC_LUN_NOT_READY 0x04 | |
177 | #define SCSI_ASC_WARNING 0x0B | |
178 | #define SCSI_ASC_LOG_BLOCK_GUARD_CHECK_FAILED 0x10 | |
179 | #define SCSI_ASC_LOG_BLOCK_APPTAG_CHECK_FAILED 0x10 | |
180 | #define SCSI_ASC_LOG_BLOCK_REFTAG_CHECK_FAILED 0x10 | |
181 | #define SCSI_ASC_UNRECOVERED_READ_ERROR 0x11 | |
182 | #define SCSI_ASC_MISCOMPARE_DURING_VERIFY 0x1D | |
183 | #define SCSI_ASC_ACCESS_DENIED_INVALID_LUN_ID 0x20 | |
184 | #define SCSI_ASC_ILLEGAL_COMMAND 0x20 | |
185 | #define SCSI_ASC_ILLEGAL_BLOCK 0x21 | |
186 | #define SCSI_ASC_INVALID_CDB 0x24 | |
187 | #define SCSI_ASC_INVALID_LUN 0x25 | |
188 | #define SCSI_ASC_INVALID_PARAMETER 0x26 | |
189 | #define SCSI_ASC_FORMAT_COMMAND_FAILED 0x31 | |
190 | #define SCSI_ASC_INTERNAL_TARGET_FAILURE 0x44 | |
191 | ||
192 | /* SCSI ADDITIONAL SENSE Code Qualifiers */ | |
193 | ||
194 | #define SCSI_ASCQ_CAUSE_NOT_REPORTABLE 0x00 | |
195 | #define SCSI_ASCQ_FORMAT_COMMAND_FAILED 0x01 | |
196 | #define SCSI_ASCQ_LOG_BLOCK_GUARD_CHECK_FAILED 0x01 | |
197 | #define SCSI_ASCQ_LOG_BLOCK_APPTAG_CHECK_FAILED 0x02 | |
198 | #define SCSI_ASCQ_LOG_BLOCK_REFTAG_CHECK_FAILED 0x03 | |
199 | #define SCSI_ASCQ_FORMAT_IN_PROGRESS 0x04 | |
200 | #define SCSI_ASCQ_POWER_LOSS_EXPECTED 0x08 | |
201 | #define SCSI_ASCQ_INVALID_LUN_ID 0x09 | |
202 | ||
3726897e CH |
203 | /* copied from drivers/usb/gadget/function/storage_common.h */ |
204 | static inline u32 get_unaligned_be24(u8 *buf) | |
205 | { | |
206 | return 0xffffff & (u32) get_unaligned_be32(buf - 1); | |
207 | } | |
5d0f6131 VV |
208 | |
209 | /* Struct to gather data that needs to be extracted from a SCSI CDB. | |
210 | Not conforming to any particular CDB variant, but compatible with all. */ | |
211 | ||
212 | struct nvme_trans_io_cdb { | |
213 | u8 fua; | |
214 | u8 prot_info; | |
215 | u64 lba; | |
216 | u32 xfer_len; | |
217 | }; | |
218 | ||
219 | ||
220 | /* Internal Helper Functions */ | |
221 | ||
222 | ||
223 | /* Copy data to userspace memory */ | |
224 | ||
225 | static int nvme_trans_copy_to_user(struct sg_io_hdr *hdr, void *from, | |
226 | unsigned long n) | |
227 | { | |
5d0f6131 VV |
228 | int i; |
229 | void *index = from; | |
230 | size_t remaining = n; | |
231 | size_t xfer_len; | |
232 | ||
233 | if (hdr->iovec_count > 0) { | |
8741ee4c | 234 | struct sg_iovec sgl; |
5d0f6131 VV |
235 | |
236 | for (i = 0; i < hdr->iovec_count; i++) { | |
e61b0a86 | 237 | if (copy_from_user(&sgl, hdr->dxferp + |
8741ee4c | 238 | i * sizeof(struct sg_iovec), |
e61b0a86 | 239 | sizeof(struct sg_iovec))) |
8741ee4c VV |
240 | return -EFAULT; |
241 | xfer_len = min(remaining, sgl.iov_len); | |
e61b0a86 CH |
242 | if (copy_to_user(sgl.iov_base, index, xfer_len)) |
243 | return -EFAULT; | |
244 | ||
5d0f6131 VV |
245 | index += xfer_len; |
246 | remaining -= xfer_len; | |
247 | if (remaining == 0) | |
248 | break; | |
249 | } | |
e61b0a86 | 250 | return 0; |
5d0f6131 | 251 | } |
e61b0a86 CH |
252 | |
253 | if (copy_to_user(hdr->dxferp, from, n)) | |
254 | return -EFAULT; | |
255 | return 0; | |
5d0f6131 VV |
256 | } |
257 | ||
258 | /* Copy data from userspace memory */ | |
259 | ||
260 | static int nvme_trans_copy_from_user(struct sg_io_hdr *hdr, void *to, | |
261 | unsigned long n) | |
262 | { | |
5d0f6131 VV |
263 | int i; |
264 | void *index = to; | |
265 | size_t remaining = n; | |
266 | size_t xfer_len; | |
267 | ||
268 | if (hdr->iovec_count > 0) { | |
8741ee4c | 269 | struct sg_iovec sgl; |
5d0f6131 VV |
270 | |
271 | for (i = 0; i < hdr->iovec_count; i++) { | |
e61b0a86 | 272 | if (copy_from_user(&sgl, hdr->dxferp + |
8741ee4c | 273 | i * sizeof(struct sg_iovec), |
e61b0a86 | 274 | sizeof(struct sg_iovec))) |
8741ee4c VV |
275 | return -EFAULT; |
276 | xfer_len = min(remaining, sgl.iov_len); | |
e61b0a86 CH |
277 | if (copy_from_user(index, sgl.iov_base, xfer_len)) |
278 | return -EFAULT; | |
5d0f6131 VV |
279 | index += xfer_len; |
280 | remaining -= xfer_len; | |
281 | if (remaining == 0) | |
282 | break; | |
283 | } | |
e61b0a86 | 284 | return 0; |
5d0f6131 VV |
285 | } |
286 | ||
e61b0a86 CH |
287 | if (copy_from_user(to, hdr->dxferp, n)) |
288 | return -EFAULT; | |
289 | return 0; | |
5d0f6131 VV |
290 | } |
291 | ||
292 | /* Status/Sense Buffer Writeback */ | |
293 | ||
294 | static int nvme_trans_completion(struct sg_io_hdr *hdr, u8 status, u8 sense_key, | |
295 | u8 asc, u8 ascq) | |
296 | { | |
5d0f6131 VV |
297 | u8 xfer_len; |
298 | u8 resp[DESC_FMT_SENSE_DATA_SIZE]; | |
299 | ||
300 | if (scsi_status_is_good(status)) { | |
301 | hdr->status = SAM_STAT_GOOD; | |
302 | hdr->masked_status = GOOD; | |
303 | hdr->host_status = DID_OK; | |
304 | hdr->driver_status = DRIVER_OK; | |
305 | hdr->sb_len_wr = 0; | |
306 | } else { | |
307 | hdr->status = status; | |
308 | hdr->masked_status = status >> 1; | |
309 | hdr->host_status = DID_OK; | |
310 | hdr->driver_status = DRIVER_OK; | |
311 | ||
312 | memset(resp, 0, DESC_FMT_SENSE_DATA_SIZE); | |
313 | resp[0] = DESC_FORMAT_SENSE_DATA; | |
314 | resp[1] = sense_key; | |
315 | resp[2] = asc; | |
316 | resp[3] = ascq; | |
317 | ||
318 | xfer_len = min_t(u8, hdr->mx_sb_len, DESC_FMT_SENSE_DATA_SIZE); | |
319 | hdr->sb_len_wr = xfer_len; | |
8741ee4c | 320 | if (copy_to_user(hdr->sbp, resp, xfer_len) > 0) |
e61b0a86 | 321 | return -EFAULT; |
5d0f6131 VV |
322 | } |
323 | ||
e61b0a86 | 324 | return 0; |
5d0f6131 VV |
325 | } |
326 | ||
e61b0a86 CH |
327 | /* |
328 | * Take a status code from a lowlevel routine, and if it was a positive NVMe | |
329 | * error code update the sense data based on it. In either case the passed | |
330 | * in value is returned again, unless an -EFAULT from copy_to_user overrides | |
331 | * it. | |
332 | */ | |
5d0f6131 VV |
333 | static int nvme_trans_status_code(struct sg_io_hdr *hdr, int nvme_sc) |
334 | { | |
335 | u8 status, sense_key, asc, ascq; | |
e61b0a86 | 336 | int res; |
5d0f6131 VV |
337 | |
338 | /* For non-nvme (Linux) errors, simply return the error code */ | |
339 | if (nvme_sc < 0) | |
340 | return nvme_sc; | |
341 | ||
342 | /* Mask DNR, More, and reserved fields */ | |
e61b0a86 | 343 | switch (nvme_sc & 0x7FF) { |
5d0f6131 VV |
344 | /* Generic Command Status */ |
345 | case NVME_SC_SUCCESS: | |
346 | status = SAM_STAT_GOOD; | |
347 | sense_key = NO_SENSE; | |
348 | asc = SCSI_ASC_NO_SENSE; | |
349 | ascq = SCSI_ASCQ_CAUSE_NOT_REPORTABLE; | |
350 | break; | |
351 | case NVME_SC_INVALID_OPCODE: | |
352 | status = SAM_STAT_CHECK_CONDITION; | |
353 | sense_key = ILLEGAL_REQUEST; | |
354 | asc = SCSI_ASC_ILLEGAL_COMMAND; | |
355 | ascq = SCSI_ASCQ_CAUSE_NOT_REPORTABLE; | |
356 | break; | |
357 | case NVME_SC_INVALID_FIELD: | |
358 | status = SAM_STAT_CHECK_CONDITION; | |
359 | sense_key = ILLEGAL_REQUEST; | |
360 | asc = SCSI_ASC_INVALID_CDB; | |
361 | ascq = SCSI_ASCQ_CAUSE_NOT_REPORTABLE; | |
362 | break; | |
363 | case NVME_SC_DATA_XFER_ERROR: | |
364 | status = SAM_STAT_CHECK_CONDITION; | |
365 | sense_key = MEDIUM_ERROR; | |
366 | asc = SCSI_ASC_NO_SENSE; | |
367 | ascq = SCSI_ASCQ_CAUSE_NOT_REPORTABLE; | |
368 | break; | |
369 | case NVME_SC_POWER_LOSS: | |
370 | status = SAM_STAT_TASK_ABORTED; | |
371 | sense_key = ABORTED_COMMAND; | |
372 | asc = SCSI_ASC_WARNING; | |
373 | ascq = SCSI_ASCQ_POWER_LOSS_EXPECTED; | |
374 | break; | |
375 | case NVME_SC_INTERNAL: | |
376 | status = SAM_STAT_CHECK_CONDITION; | |
377 | sense_key = HARDWARE_ERROR; | |
378 | asc = SCSI_ASC_INTERNAL_TARGET_FAILURE; | |
379 | ascq = SCSI_ASCQ_CAUSE_NOT_REPORTABLE; | |
380 | break; | |
381 | case NVME_SC_ABORT_REQ: | |
382 | status = SAM_STAT_TASK_ABORTED; | |
383 | sense_key = ABORTED_COMMAND; | |
384 | asc = SCSI_ASC_NO_SENSE; | |
385 | ascq = SCSI_ASCQ_CAUSE_NOT_REPORTABLE; | |
386 | break; | |
387 | case NVME_SC_ABORT_QUEUE: | |
388 | status = SAM_STAT_TASK_ABORTED; | |
389 | sense_key = ABORTED_COMMAND; | |
390 | asc = SCSI_ASC_NO_SENSE; | |
391 | ascq = SCSI_ASCQ_CAUSE_NOT_REPORTABLE; | |
392 | break; | |
393 | case NVME_SC_FUSED_FAIL: | |
394 | status = SAM_STAT_TASK_ABORTED; | |
395 | sense_key = ABORTED_COMMAND; | |
396 | asc = SCSI_ASC_NO_SENSE; | |
397 | ascq = SCSI_ASCQ_CAUSE_NOT_REPORTABLE; | |
398 | break; | |
399 | case NVME_SC_FUSED_MISSING: | |
400 | status = SAM_STAT_TASK_ABORTED; | |
401 | sense_key = ABORTED_COMMAND; | |
402 | asc = SCSI_ASC_NO_SENSE; | |
403 | ascq = SCSI_ASCQ_CAUSE_NOT_REPORTABLE; | |
404 | break; | |
405 | case NVME_SC_INVALID_NS: | |
406 | status = SAM_STAT_CHECK_CONDITION; | |
407 | sense_key = ILLEGAL_REQUEST; | |
408 | asc = SCSI_ASC_ACCESS_DENIED_INVALID_LUN_ID; | |
409 | ascq = SCSI_ASCQ_INVALID_LUN_ID; | |
410 | break; | |
411 | case NVME_SC_LBA_RANGE: | |
412 | status = SAM_STAT_CHECK_CONDITION; | |
413 | sense_key = ILLEGAL_REQUEST; | |
414 | asc = SCSI_ASC_ILLEGAL_BLOCK; | |
415 | ascq = SCSI_ASCQ_CAUSE_NOT_REPORTABLE; | |
416 | break; | |
417 | case NVME_SC_CAP_EXCEEDED: | |
418 | status = SAM_STAT_CHECK_CONDITION; | |
419 | sense_key = MEDIUM_ERROR; | |
420 | asc = SCSI_ASC_NO_SENSE; | |
421 | ascq = SCSI_ASCQ_CAUSE_NOT_REPORTABLE; | |
422 | break; | |
423 | case NVME_SC_NS_NOT_READY: | |
424 | status = SAM_STAT_CHECK_CONDITION; | |
425 | sense_key = NOT_READY; | |
426 | asc = SCSI_ASC_LUN_NOT_READY; | |
427 | ascq = SCSI_ASCQ_CAUSE_NOT_REPORTABLE; | |
428 | break; | |
429 | ||
430 | /* Command Specific Status */ | |
431 | case NVME_SC_INVALID_FORMAT: | |
432 | status = SAM_STAT_CHECK_CONDITION; | |
433 | sense_key = ILLEGAL_REQUEST; | |
434 | asc = SCSI_ASC_FORMAT_COMMAND_FAILED; | |
435 | ascq = SCSI_ASCQ_FORMAT_COMMAND_FAILED; | |
436 | break; | |
437 | case NVME_SC_BAD_ATTRIBUTES: | |
438 | status = SAM_STAT_CHECK_CONDITION; | |
439 | sense_key = ILLEGAL_REQUEST; | |
440 | asc = SCSI_ASC_INVALID_CDB; | |
441 | ascq = SCSI_ASCQ_CAUSE_NOT_REPORTABLE; | |
442 | break; | |
443 | ||
444 | /* Media Errors */ | |
445 | case NVME_SC_WRITE_FAULT: | |
446 | status = SAM_STAT_CHECK_CONDITION; | |
447 | sense_key = MEDIUM_ERROR; | |
448 | asc = SCSI_ASC_PERIPHERAL_DEV_WRITE_FAULT; | |
449 | ascq = SCSI_ASCQ_CAUSE_NOT_REPORTABLE; | |
450 | break; | |
451 | case NVME_SC_READ_ERROR: | |
452 | status = SAM_STAT_CHECK_CONDITION; | |
453 | sense_key = MEDIUM_ERROR; | |
454 | asc = SCSI_ASC_UNRECOVERED_READ_ERROR; | |
455 | ascq = SCSI_ASCQ_CAUSE_NOT_REPORTABLE; | |
456 | break; | |
457 | case NVME_SC_GUARD_CHECK: | |
458 | status = SAM_STAT_CHECK_CONDITION; | |
459 | sense_key = MEDIUM_ERROR; | |
460 | asc = SCSI_ASC_LOG_BLOCK_GUARD_CHECK_FAILED; | |
461 | ascq = SCSI_ASCQ_LOG_BLOCK_GUARD_CHECK_FAILED; | |
462 | break; | |
463 | case NVME_SC_APPTAG_CHECK: | |
464 | status = SAM_STAT_CHECK_CONDITION; | |
465 | sense_key = MEDIUM_ERROR; | |
466 | asc = SCSI_ASC_LOG_BLOCK_APPTAG_CHECK_FAILED; | |
467 | ascq = SCSI_ASCQ_LOG_BLOCK_APPTAG_CHECK_FAILED; | |
468 | break; | |
469 | case NVME_SC_REFTAG_CHECK: | |
470 | status = SAM_STAT_CHECK_CONDITION; | |
471 | sense_key = MEDIUM_ERROR; | |
472 | asc = SCSI_ASC_LOG_BLOCK_REFTAG_CHECK_FAILED; | |
473 | ascq = SCSI_ASCQ_LOG_BLOCK_REFTAG_CHECK_FAILED; | |
474 | break; | |
475 | case NVME_SC_COMPARE_FAILED: | |
476 | status = SAM_STAT_CHECK_CONDITION; | |
477 | sense_key = MISCOMPARE; | |
478 | asc = SCSI_ASC_MISCOMPARE_DURING_VERIFY; | |
479 | ascq = SCSI_ASCQ_CAUSE_NOT_REPORTABLE; | |
480 | break; | |
481 | case NVME_SC_ACCESS_DENIED: | |
482 | status = SAM_STAT_CHECK_CONDITION; | |
483 | sense_key = ILLEGAL_REQUEST; | |
484 | asc = SCSI_ASC_ACCESS_DENIED_INVALID_LUN_ID; | |
485 | ascq = SCSI_ASCQ_INVALID_LUN_ID; | |
486 | break; | |
487 | ||
488 | /* Unspecified/Default */ | |
489 | case NVME_SC_CMDID_CONFLICT: | |
490 | case NVME_SC_CMD_SEQ_ERROR: | |
491 | case NVME_SC_CQ_INVALID: | |
492 | case NVME_SC_QID_INVALID: | |
493 | case NVME_SC_QUEUE_SIZE: | |
494 | case NVME_SC_ABORT_LIMIT: | |
495 | case NVME_SC_ABORT_MISSING: | |
496 | case NVME_SC_ASYNC_LIMIT: | |
497 | case NVME_SC_FIRMWARE_SLOT: | |
498 | case NVME_SC_FIRMWARE_IMAGE: | |
499 | case NVME_SC_INVALID_VECTOR: | |
500 | case NVME_SC_INVALID_LOG_PAGE: | |
501 | default: | |
502 | status = SAM_STAT_CHECK_CONDITION; | |
503 | sense_key = ILLEGAL_REQUEST; | |
504 | asc = SCSI_ASC_NO_SENSE; | |
505 | ascq = SCSI_ASCQ_CAUSE_NOT_REPORTABLE; | |
506 | break; | |
507 | } | |
508 | ||
509 | res = nvme_trans_completion(hdr, status, sense_key, asc, ascq); | |
e61b0a86 | 510 | return res ? res : nvme_sc; |
5d0f6131 VV |
511 | } |
512 | ||
513 | /* INQUIRY Helper Functions */ | |
514 | ||
515 | static int nvme_trans_standard_inquiry_page(struct nvme_ns *ns, | |
516 | struct sg_io_hdr *hdr, u8 *inq_response, | |
517 | int alloc_len) | |
518 | { | |
1c63dc66 | 519 | struct nvme_ctrl *ctrl = ns->ctrl; |
5d0f6131 | 520 | struct nvme_id_ns *id_ns; |
e61b0a86 | 521 | int res; |
5d0f6131 VV |
522 | int nvme_sc; |
523 | int xfer_len; | |
524 | u8 resp_data_format = 0x02; | |
525 | u8 protect; | |
526 | u8 cmdque = 0x01 << 1; | |
1c63dc66 | 527 | u8 fw_offset = sizeof(ctrl->firmware_rev); |
5d0f6131 | 528 | |
5d0f6131 | 529 | /* nvme ns identify - use DPS value for PROTECT field */ |
1c63dc66 | 530 | nvme_sc = nvme_identify_ns(ctrl, ns->ns_id, &id_ns); |
5d0f6131 | 531 | res = nvme_trans_status_code(hdr, nvme_sc); |
5d0f6131 | 532 | if (res) |
d29ec824 | 533 | return res; |
e61b0a86 | 534 | |
d29ec824 CH |
535 | if (id_ns->dps) |
536 | protect = 0x01; | |
537 | else | |
538 | protect = 0; | |
539 | kfree(id_ns); | |
5d0f6131 VV |
540 | |
541 | memset(inq_response, 0, STANDARD_INQUIRY_LENGTH); | |
542 | inq_response[2] = VERSION_SPC_4; | |
543 | inq_response[3] = resp_data_format; /*normaca=0 | hisup=0 */ | |
544 | inq_response[4] = ADDITIONAL_STD_INQ_LENGTH; | |
545 | inq_response[5] = protect; /* sccs=0 | acc=0 | tpgs=0 | pc3=0 */ | |
546 | inq_response[7] = cmdque; /* wbus16=0 | sync=0 | vs=0 */ | |
547 | strncpy(&inq_response[8], "NVMe ", 8); | |
1c63dc66 | 548 | strncpy(&inq_response[16], ctrl->model, 16); |
dedf4b15 | 549 | |
1c63dc66 | 550 | while (ctrl->firmware_rev[fw_offset - 1] == ' ' && fw_offset > 4) |
dedf4b15 KB |
551 | fw_offset--; |
552 | fw_offset -= 4; | |
1c63dc66 | 553 | strncpy(&inq_response[32], ctrl->firmware_rev + fw_offset, 4); |
5d0f6131 VV |
554 | |
555 | xfer_len = min(alloc_len, STANDARD_INQUIRY_LENGTH); | |
d29ec824 | 556 | return nvme_trans_copy_to_user(hdr, inq_response, xfer_len); |
5d0f6131 VV |
557 | } |
558 | ||
559 | static int nvme_trans_supported_vpd_pages(struct nvme_ns *ns, | |
560 | struct sg_io_hdr *hdr, u8 *inq_response, | |
561 | int alloc_len) | |
562 | { | |
5d0f6131 VV |
563 | int xfer_len; |
564 | ||
565 | memset(inq_response, 0, STANDARD_INQUIRY_LENGTH); | |
566 | inq_response[1] = INQ_SUPPORTED_VPD_PAGES_PAGE; /* Page Code */ | |
567 | inq_response[3] = INQ_NUM_SUPPORTED_VPD_PAGES; /* Page Length */ | |
568 | inq_response[4] = INQ_SUPPORTED_VPD_PAGES_PAGE; | |
569 | inq_response[5] = INQ_UNIT_SERIAL_NUMBER_PAGE; | |
570 | inq_response[6] = INQ_DEVICE_IDENTIFICATION_PAGE; | |
571 | inq_response[7] = INQ_EXTENDED_INQUIRY_DATA_PAGE; | |
572 | inq_response[8] = INQ_BDEV_CHARACTERISTICS_PAGE; | |
7f749d9c | 573 | inq_response[9] = INQ_BDEV_LIMITS_PAGE; |
5d0f6131 VV |
574 | |
575 | xfer_len = min(alloc_len, STANDARD_INQUIRY_LENGTH); | |
e61b0a86 | 576 | return nvme_trans_copy_to_user(hdr, inq_response, xfer_len); |
5d0f6131 VV |
577 | } |
578 | ||
579 | static int nvme_trans_unit_serial_page(struct nvme_ns *ns, | |
580 | struct sg_io_hdr *hdr, u8 *inq_response, | |
581 | int alloc_len) | |
582 | { | |
5d0f6131 VV |
583 | int xfer_len; |
584 | ||
585 | memset(inq_response, 0, STANDARD_INQUIRY_LENGTH); | |
586 | inq_response[1] = INQ_UNIT_SERIAL_NUMBER_PAGE; /* Page Code */ | |
587 | inq_response[3] = INQ_SERIAL_NUMBER_LENGTH; /* Page Length */ | |
1c63dc66 | 588 | strncpy(&inq_response[4], ns->ctrl->serial, INQ_SERIAL_NUMBER_LENGTH); |
5d0f6131 VV |
589 | |
590 | xfer_len = min(alloc_len, STANDARD_INQUIRY_LENGTH); | |
e61b0a86 | 591 | return nvme_trans_copy_to_user(hdr, inq_response, xfer_len); |
5d0f6131 VV |
592 | } |
593 | ||
bf7d3ebb | 594 | static int nvme_fill_device_id_eui64(struct nvme_ns *ns, struct sg_io_hdr *hdr, |
f3ca80fc | 595 | u8 *inq_response, int alloc_len) |
5d0f6131 | 596 | { |
bf7d3ebb CH |
597 | struct nvme_id_ns *id_ns; |
598 | int nvme_sc, res; | |
599 | size_t len; | |
600 | void *eui; | |
5d0f6131 | 601 | |
1c63dc66 | 602 | nvme_sc = nvme_identify_ns(ns->ctrl, ns->ns_id, &id_ns); |
bf7d3ebb CH |
603 | res = nvme_trans_status_code(hdr, nvme_sc); |
604 | if (res) | |
605 | return res; | |
4f1982b4 | 606 | |
bf7d3ebb CH |
607 | eui = id_ns->eui64; |
608 | len = sizeof(id_ns->eui64); | |
609 | ||
8ef2074d | 610 | if (ns->ctrl->vs >= NVME_VS(1, 2, 0)) { |
d29ec824 | 611 | if (bitmap_empty(eui, len * 8)) { |
bf7d3ebb CH |
612 | eui = id_ns->nguid; |
613 | len = sizeof(id_ns->nguid); | |
d29ec824 | 614 | } |
bf7d3ebb | 615 | } |
4f1982b4 | 616 | |
bf7d3ebb CH |
617 | if (bitmap_empty(eui, len * 8)) { |
618 | res = -EOPNOTSUPP; | |
619 | goto out_free_id; | |
4f1982b4 | 620 | } |
bf7d3ebb CH |
621 | |
622 | memset(inq_response, 0, alloc_len); | |
623 | inq_response[1] = INQ_DEVICE_IDENTIFICATION_PAGE; | |
624 | inq_response[3] = 4 + len; /* Page Length */ | |
625 | ||
626 | /* Designation Descriptor start */ | |
627 | inq_response[4] = 0x01; /* Proto ID=0h | Code set=1h */ | |
628 | inq_response[5] = 0x02; /* PIV=0b | Asso=00b | Designator Type=2h */ | |
629 | inq_response[6] = 0x00; /* Rsvd */ | |
630 | inq_response[7] = len; /* Designator Length */ | |
631 | memcpy(&inq_response[8], eui, len); | |
632 | ||
633 | res = nvme_trans_copy_to_user(hdr, inq_response, alloc_len); | |
634 | out_free_id: | |
635 | kfree(id_ns); | |
636 | return res; | |
637 | } | |
638 | ||
639 | static int nvme_fill_device_id_scsi_string(struct nvme_ns *ns, | |
640 | struct sg_io_hdr *hdr, u8 *inq_response, int alloc_len) | |
641 | { | |
1c63dc66 | 642 | struct nvme_ctrl *ctrl = ns->ctrl; |
01fec28a CH |
643 | struct nvme_id_ctrl *id_ctrl; |
644 | int nvme_sc, res; | |
bf7d3ebb CH |
645 | |
646 | if (alloc_len < 72) { | |
647 | return nvme_trans_completion(hdr, | |
648 | SAM_STAT_CHECK_CONDITION, | |
649 | ILLEGAL_REQUEST, SCSI_ASC_INVALID_CDB, | |
650 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
651 | } | |
652 | ||
1c63dc66 | 653 | nvme_sc = nvme_identify_ctrl(ctrl, &id_ctrl); |
01fec28a CH |
654 | res = nvme_trans_status_code(hdr, nvme_sc); |
655 | if (res) | |
656 | return res; | |
657 | ||
bf7d3ebb CH |
658 | memset(inq_response, 0, alloc_len); |
659 | inq_response[1] = INQ_DEVICE_IDENTIFICATION_PAGE; | |
660 | inq_response[3] = 0x48; /* Page Length */ | |
661 | ||
662 | /* Designation Descriptor start */ | |
663 | inq_response[4] = 0x03; /* Proto ID=0h | Code set=3h */ | |
664 | inq_response[5] = 0x08; /* PIV=0b | Asso=00b | Designator Type=8h */ | |
665 | inq_response[6] = 0x00; /* Rsvd */ | |
666 | inq_response[7] = 0x44; /* Designator Length */ | |
667 | ||
01fec28a | 668 | sprintf(&inq_response[8], "%04x", le16_to_cpu(id_ctrl->vid)); |
1c63dc66 | 669 | memcpy(&inq_response[12], ctrl->model, sizeof(ctrl->model)); |
bf7d3ebb | 670 | sprintf(&inq_response[52], "%04x", cpu_to_be32(ns->ns_id)); |
1c63dc66 | 671 | memcpy(&inq_response[56], ctrl->serial, sizeof(ctrl->serial)); |
bf7d3ebb | 672 | |
01fec28a CH |
673 | res = nvme_trans_copy_to_user(hdr, inq_response, alloc_len); |
674 | kfree(id_ctrl); | |
675 | return res; | |
bf7d3ebb CH |
676 | } |
677 | ||
678 | static int nvme_trans_device_id_page(struct nvme_ns *ns, struct sg_io_hdr *hdr, | |
679 | u8 *resp, int alloc_len) | |
680 | { | |
681 | int res; | |
682 | ||
8ef2074d | 683 | if (ns->ctrl->vs >= NVME_VS(1, 1, 0)) { |
f3ca80fc | 684 | res = nvme_fill_device_id_eui64(ns, hdr, resp, alloc_len); |
bf7d3ebb CH |
685 | if (res != -EOPNOTSUPP) |
686 | return res; | |
687 | } | |
688 | ||
689 | return nvme_fill_device_id_scsi_string(ns, hdr, resp, alloc_len); | |
5d0f6131 VV |
690 | } |
691 | ||
692 | static int nvme_trans_ext_inq_page(struct nvme_ns *ns, struct sg_io_hdr *hdr, | |
693 | int alloc_len) | |
694 | { | |
695 | u8 *inq_response; | |
e61b0a86 | 696 | int res; |
5d0f6131 | 697 | int nvme_sc; |
1c63dc66 | 698 | struct nvme_ctrl *ctrl = ns->ctrl; |
5d0f6131 VV |
699 | struct nvme_id_ctrl *id_ctrl; |
700 | struct nvme_id_ns *id_ns; | |
701 | int xfer_len; | |
702 | u8 microcode = 0x80; | |
703 | u8 spt; | |
704 | u8 spt_lut[8] = {0, 0, 2, 1, 4, 6, 5, 7}; | |
705 | u8 grd_chk, app_chk, ref_chk, protect; | |
706 | u8 uask_sup = 0x20; | |
707 | u8 v_sup; | |
708 | u8 luiclr = 0x01; | |
709 | ||
710 | inq_response = kmalloc(EXTENDED_INQUIRY_DATA_PAGE_LENGTH, GFP_KERNEL); | |
d29ec824 CH |
711 | if (inq_response == NULL) |
712 | return -ENOMEM; | |
5d0f6131 | 713 | |
1c63dc66 | 714 | nvme_sc = nvme_identify_ns(ctrl, ns->ns_id, &id_ns); |
5d0f6131 VV |
715 | res = nvme_trans_status_code(hdr, nvme_sc); |
716 | if (res) | |
d29ec824 CH |
717 | goto out_free_inq; |
718 | ||
719 | spt = spt_lut[id_ns->dpc & 0x07] << 3; | |
720 | if (id_ns->dps) | |
721 | protect = 0x01; | |
722 | else | |
723 | protect = 0; | |
724 | kfree(id_ns); | |
e61b0a86 | 725 | |
5d0f6131 VV |
726 | grd_chk = protect << 2; |
727 | app_chk = protect << 1; | |
728 | ref_chk = protect; | |
729 | ||
1c63dc66 | 730 | nvme_sc = nvme_identify_ctrl(ctrl, &id_ctrl); |
5d0f6131 VV |
731 | res = nvme_trans_status_code(hdr, nvme_sc); |
732 | if (res) | |
d29ec824 | 733 | goto out_free_inq; |
e61b0a86 | 734 | |
5d0f6131 | 735 | v_sup = id_ctrl->vwc; |
d29ec824 | 736 | kfree(id_ctrl); |
5d0f6131 VV |
737 | |
738 | memset(inq_response, 0, EXTENDED_INQUIRY_DATA_PAGE_LENGTH); | |
739 | inq_response[1] = INQ_EXTENDED_INQUIRY_DATA_PAGE; /* Page Code */ | |
740 | inq_response[2] = 0x00; /* Page Length MSB */ | |
741 | inq_response[3] = 0x3C; /* Page Length LSB */ | |
742 | inq_response[4] = microcode | spt | grd_chk | app_chk | ref_chk; | |
743 | inq_response[5] = uask_sup; | |
744 | inq_response[6] = v_sup; | |
745 | inq_response[7] = luiclr; | |
746 | inq_response[8] = 0; | |
747 | inq_response[9] = 0; | |
748 | ||
749 | xfer_len = min(alloc_len, EXTENDED_INQUIRY_DATA_PAGE_LENGTH); | |
750 | res = nvme_trans_copy_to_user(hdr, inq_response, xfer_len); | |
751 | ||
d29ec824 | 752 | out_free_inq: |
5d0f6131 | 753 | kfree(inq_response); |
5d0f6131 VV |
754 | return res; |
755 | } | |
756 | ||
7f749d9c KB |
757 | static int nvme_trans_bdev_limits_page(struct nvme_ns *ns, struct sg_io_hdr *hdr, |
758 | u8 *inq_response, int alloc_len) | |
759 | { | |
9283b42e KB |
760 | __be32 max_sectors = cpu_to_be32( |
761 | nvme_block_nr(ns, queue_max_hw_sectors(ns->queue))); | |
7f749d9c KB |
762 | __be32 max_discard = cpu_to_be32(ns->queue->limits.max_discard_sectors); |
763 | __be32 discard_desc_count = cpu_to_be32(0x100); | |
764 | ||
765 | memset(inq_response, 0, STANDARD_INQUIRY_LENGTH); | |
766 | inq_response[1] = VPD_BLOCK_LIMITS; | |
767 | inq_response[3] = 0x3c; /* Page Length */ | |
768 | memcpy(&inq_response[8], &max_sectors, sizeof(u32)); | |
769 | memcpy(&inq_response[20], &max_discard, sizeof(u32)); | |
770 | ||
771 | if (max_discard) | |
772 | memcpy(&inq_response[24], &discard_desc_count, sizeof(u32)); | |
773 | ||
774 | return nvme_trans_copy_to_user(hdr, inq_response, 0x3c); | |
775 | } | |
776 | ||
5d0f6131 VV |
777 | static int nvme_trans_bdev_char_page(struct nvme_ns *ns, struct sg_io_hdr *hdr, |
778 | int alloc_len) | |
779 | { | |
780 | u8 *inq_response; | |
e61b0a86 | 781 | int res; |
5d0f6131 VV |
782 | int xfer_len; |
783 | ||
03ea83e9 | 784 | inq_response = kzalloc(EXTENDED_INQUIRY_DATA_PAGE_LENGTH, GFP_KERNEL); |
5d0f6131 VV |
785 | if (inq_response == NULL) { |
786 | res = -ENOMEM; | |
787 | goto out_mem; | |
788 | } | |
789 | ||
5d0f6131 VV |
790 | inq_response[1] = INQ_BDEV_CHARACTERISTICS_PAGE; /* Page Code */ |
791 | inq_response[2] = 0x00; /* Page Length MSB */ | |
792 | inq_response[3] = 0x3C; /* Page Length LSB */ | |
793 | inq_response[4] = 0x00; /* Medium Rotation Rate MSB */ | |
794 | inq_response[5] = 0x01; /* Medium Rotation Rate LSB */ | |
795 | inq_response[6] = 0x00; /* Form Factor */ | |
796 | ||
797 | xfer_len = min(alloc_len, EXTENDED_INQUIRY_DATA_PAGE_LENGTH); | |
798 | res = nvme_trans_copy_to_user(hdr, inq_response, xfer_len); | |
799 | ||
800 | kfree(inq_response); | |
801 | out_mem: | |
802 | return res; | |
803 | } | |
804 | ||
805 | /* LOG SENSE Helper Functions */ | |
806 | ||
807 | static int nvme_trans_log_supp_pages(struct nvme_ns *ns, struct sg_io_hdr *hdr, | |
808 | int alloc_len) | |
809 | { | |
e61b0a86 | 810 | int res; |
5d0f6131 VV |
811 | int xfer_len; |
812 | u8 *log_response; | |
813 | ||
03ea83e9 | 814 | log_response = kzalloc(LOG_PAGE_SUPPORTED_LOG_PAGES_LENGTH, GFP_KERNEL); |
5d0f6131 VV |
815 | if (log_response == NULL) { |
816 | res = -ENOMEM; | |
817 | goto out_mem; | |
818 | } | |
5d0f6131 VV |
819 | |
820 | log_response[0] = LOG_PAGE_SUPPORTED_LOG_PAGES_PAGE; | |
821 | /* Subpage=0x00, Page Length MSB=0 */ | |
822 | log_response[3] = SUPPORTED_LOG_PAGES_PAGE_LENGTH; | |
823 | log_response[4] = LOG_PAGE_SUPPORTED_LOG_PAGES_PAGE; | |
824 | log_response[5] = LOG_PAGE_INFORMATIONAL_EXCEPTIONS_PAGE; | |
825 | log_response[6] = LOG_PAGE_TEMPERATURE_PAGE; | |
826 | ||
827 | xfer_len = min(alloc_len, LOG_PAGE_SUPPORTED_LOG_PAGES_LENGTH); | |
828 | res = nvme_trans_copy_to_user(hdr, log_response, xfer_len); | |
829 | ||
830 | kfree(log_response); | |
831 | out_mem: | |
832 | return res; | |
833 | } | |
834 | ||
835 | static int nvme_trans_log_info_exceptions(struct nvme_ns *ns, | |
836 | struct sg_io_hdr *hdr, int alloc_len) | |
837 | { | |
e61b0a86 | 838 | int res; |
5d0f6131 VV |
839 | int xfer_len; |
840 | u8 *log_response; | |
5d0f6131 | 841 | struct nvme_smart_log *smart_log; |
5d0f6131 VV |
842 | u8 temp_c; |
843 | u16 temp_k; | |
844 | ||
03ea83e9 | 845 | log_response = kzalloc(LOG_INFO_EXCP_PAGE_LENGTH, GFP_KERNEL); |
d29ec824 CH |
846 | if (log_response == NULL) |
847 | return -ENOMEM; | |
5d0f6131 | 848 | |
1c63dc66 | 849 | res = nvme_get_log_page(ns->ctrl, &smart_log); |
d29ec824 CH |
850 | if (res < 0) |
851 | goto out_free_response; | |
5d0f6131 | 852 | |
5d0f6131 VV |
853 | if (res != NVME_SC_SUCCESS) { |
854 | temp_c = LOG_TEMP_UNKNOWN; | |
855 | } else { | |
5d0f6131 VV |
856 | temp_k = (smart_log->temperature[1] << 8) + |
857 | (smart_log->temperature[0]); | |
858 | temp_c = temp_k - KELVIN_TEMP_FACTOR; | |
859 | } | |
d29ec824 | 860 | kfree(smart_log); |
5d0f6131 VV |
861 | |
862 | log_response[0] = LOG_PAGE_INFORMATIONAL_EXCEPTIONS_PAGE; | |
863 | /* Subpage=0x00, Page Length MSB=0 */ | |
864 | log_response[3] = REMAINING_INFO_EXCP_PAGE_LENGTH; | |
865 | /* Informational Exceptions Log Parameter 1 Start */ | |
866 | /* Parameter Code=0x0000 bytes 4,5 */ | |
867 | log_response[6] = 0x23; /* DU=0, TSD=1, ETC=0, TMC=0, FMT_AND_LNK=11b */ | |
868 | log_response[7] = 0x04; /* PARAMETER LENGTH */ | |
869 | /* Add sense Code and qualifier = 0x00 each */ | |
870 | /* Use Temperature from NVMe Get Log Page, convert to C from K */ | |
871 | log_response[10] = temp_c; | |
872 | ||
873 | xfer_len = min(alloc_len, LOG_INFO_EXCP_PAGE_LENGTH); | |
874 | res = nvme_trans_copy_to_user(hdr, log_response, xfer_len); | |
875 | ||
d29ec824 | 876 | out_free_response: |
5d0f6131 | 877 | kfree(log_response); |
5d0f6131 VV |
878 | return res; |
879 | } | |
880 | ||
881 | static int nvme_trans_log_temperature(struct nvme_ns *ns, struct sg_io_hdr *hdr, | |
882 | int alloc_len) | |
883 | { | |
e61b0a86 | 884 | int res; |
5d0f6131 VV |
885 | int xfer_len; |
886 | u8 *log_response; | |
5d0f6131 | 887 | struct nvme_smart_log *smart_log; |
5d0f6131 VV |
888 | u32 feature_resp; |
889 | u8 temp_c_cur, temp_c_thresh; | |
890 | u16 temp_k; | |
891 | ||
03ea83e9 | 892 | log_response = kzalloc(LOG_TEMP_PAGE_LENGTH, GFP_KERNEL); |
d29ec824 CH |
893 | if (log_response == NULL) |
894 | return -ENOMEM; | |
5d0f6131 | 895 | |
1c63dc66 | 896 | res = nvme_get_log_page(ns->ctrl, &smart_log); |
d29ec824 CH |
897 | if (res < 0) |
898 | goto out_free_response; | |
5d0f6131 | 899 | |
5d0f6131 VV |
900 | if (res != NVME_SC_SUCCESS) { |
901 | temp_c_cur = LOG_TEMP_UNKNOWN; | |
902 | } else { | |
5d0f6131 VV |
903 | temp_k = (smart_log->temperature[1] << 8) + |
904 | (smart_log->temperature[0]); | |
905 | temp_c_cur = temp_k - KELVIN_TEMP_FACTOR; | |
906 | } | |
d29ec824 | 907 | kfree(smart_log); |
5d0f6131 VV |
908 | |
909 | /* Get Features for Temp Threshold */ | |
1a6fe74d | 910 | res = nvme_get_features(ns->ctrl, NVME_FEAT_TEMP_THRESH, 0, NULL, 0, |
5d0f6131 VV |
911 | &feature_resp); |
912 | if (res != NVME_SC_SUCCESS) | |
913 | temp_c_thresh = LOG_TEMP_UNKNOWN; | |
914 | else | |
915 | temp_c_thresh = (feature_resp & 0xFFFF) - KELVIN_TEMP_FACTOR; | |
916 | ||
917 | log_response[0] = LOG_PAGE_TEMPERATURE_PAGE; | |
918 | /* Subpage=0x00, Page Length MSB=0 */ | |
919 | log_response[3] = REMAINING_TEMP_PAGE_LENGTH; | |
920 | /* Temperature Log Parameter 1 (Temperature) Start */ | |
921 | /* Parameter Code = 0x0000 */ | |
922 | log_response[6] = 0x01; /* Format and Linking = 01b */ | |
923 | log_response[7] = 0x02; /* Parameter Length */ | |
924 | /* Use Temperature from NVMe Get Log Page, convert to C from K */ | |
925 | log_response[9] = temp_c_cur; | |
926 | /* Temperature Log Parameter 2 (Reference Temperature) Start */ | |
927 | log_response[11] = 0x01; /* Parameter Code = 0x0001 */ | |
928 | log_response[12] = 0x01; /* Format and Linking = 01b */ | |
929 | log_response[13] = 0x02; /* Parameter Length */ | |
930 | /* Use Temperature Thresh from NVMe Get Log Page, convert to C from K */ | |
931 | log_response[15] = temp_c_thresh; | |
932 | ||
933 | xfer_len = min(alloc_len, LOG_TEMP_PAGE_LENGTH); | |
934 | res = nvme_trans_copy_to_user(hdr, log_response, xfer_len); | |
935 | ||
d29ec824 | 936 | out_free_response: |
5d0f6131 | 937 | kfree(log_response); |
5d0f6131 VV |
938 | return res; |
939 | } | |
940 | ||
941 | /* MODE SENSE Helper Functions */ | |
942 | ||
943 | static int nvme_trans_fill_mode_parm_hdr(u8 *resp, int len, u8 cdb10, u8 llbaa, | |
944 | u16 mode_data_length, u16 blk_desc_len) | |
945 | { | |
946 | /* Quick check to make sure I don't stomp on my own memory... */ | |
947 | if ((cdb10 && len < 8) || (!cdb10 && len < 4)) | |
e61b0a86 | 948 | return -EINVAL; |
5d0f6131 VV |
949 | |
950 | if (cdb10) { | |
951 | resp[0] = (mode_data_length & 0xFF00) >> 8; | |
952 | resp[1] = (mode_data_length & 0x00FF); | |
90851768 | 953 | resp[3] = 0x10 /* DPOFUA */; |
5d0f6131 VV |
954 | resp[4] = llbaa; |
955 | resp[5] = RESERVED_FIELD; | |
956 | resp[6] = (blk_desc_len & 0xFF00) >> 8; | |
957 | resp[7] = (blk_desc_len & 0x00FF); | |
958 | } else { | |
959 | resp[0] = (mode_data_length & 0x00FF); | |
90851768 | 960 | resp[2] = 0x10 /* DPOFUA */; |
5d0f6131 VV |
961 | resp[3] = (blk_desc_len & 0x00FF); |
962 | } | |
963 | ||
e61b0a86 | 964 | return 0; |
5d0f6131 VV |
965 | } |
966 | ||
967 | static int nvme_trans_fill_blk_desc(struct nvme_ns *ns, struct sg_io_hdr *hdr, | |
968 | u8 *resp, int len, u8 llbaa) | |
969 | { | |
e61b0a86 | 970 | int res; |
5d0f6131 | 971 | int nvme_sc; |
5d0f6131 VV |
972 | struct nvme_id_ns *id_ns; |
973 | u8 flbas; | |
974 | u32 lba_length; | |
975 | ||
976 | if (llbaa == 0 && len < MODE_PAGE_BLK_DES_LEN) | |
e61b0a86 | 977 | return -EINVAL; |
5d0f6131 | 978 | else if (llbaa > 0 && len < MODE_PAGE_LLBAA_BLK_DES_LEN) |
e61b0a86 | 979 | return -EINVAL; |
5d0f6131 | 980 | |
1c63dc66 | 981 | nvme_sc = nvme_identify_ns(ns->ctrl, ns->ns_id, &id_ns); |
5d0f6131 VV |
982 | res = nvme_trans_status_code(hdr, nvme_sc); |
983 | if (res) | |
d29ec824 | 984 | return res; |
e61b0a86 | 985 | |
5d0f6131 VV |
986 | flbas = (id_ns->flbas) & 0x0F; |
987 | lba_length = (1 << (id_ns->lbaf[flbas].ds)); | |
988 | ||
989 | if (llbaa == 0) { | |
8741ee4c | 990 | __be32 tmp_cap = cpu_to_be32(le64_to_cpu(id_ns->ncap)); |
5d0f6131 | 991 | /* Byte 4 is reserved */ |
8741ee4c | 992 | __be32 tmp_len = cpu_to_be32(lba_length & 0x00FFFFFF); |
5d0f6131 VV |
993 | |
994 | memcpy(resp, &tmp_cap, sizeof(u32)); | |
995 | memcpy(&resp[4], &tmp_len, sizeof(u32)); | |
996 | } else { | |
8741ee4c VV |
997 | __be64 tmp_cap = cpu_to_be64(le64_to_cpu(id_ns->ncap)); |
998 | __be32 tmp_len = cpu_to_be32(lba_length); | |
5d0f6131 VV |
999 | |
1000 | memcpy(resp, &tmp_cap, sizeof(u64)); | |
1001 | /* Bytes 8, 9, 10, 11 are reserved */ | |
1002 | memcpy(&resp[12], &tmp_len, sizeof(u32)); | |
1003 | } | |
1004 | ||
d29ec824 | 1005 | kfree(id_ns); |
5d0f6131 VV |
1006 | return res; |
1007 | } | |
1008 | ||
1009 | static int nvme_trans_fill_control_page(struct nvme_ns *ns, | |
1010 | struct sg_io_hdr *hdr, u8 *resp, | |
1011 | int len) | |
1012 | { | |
1013 | if (len < MODE_PAGE_CONTROL_LEN) | |
e61b0a86 | 1014 | return -EINVAL; |
5d0f6131 VV |
1015 | |
1016 | resp[0] = MODE_PAGE_CONTROL; | |
1017 | resp[1] = MODE_PAGE_CONTROL_LEN_FIELD; | |
1018 | resp[2] = 0x0E; /* TST=000b, TMF_ONLY=0, DPICZ=1, | |
1019 | * D_SENSE=1, GLTSD=1, RLEC=0 */ | |
1020 | resp[3] = 0x12; /* Q_ALGO_MODIFIER=1h, NUAR=0, QERR=01b */ | |
1021 | /* Byte 4: VS=0, RAC=0, UA_INT=0, SWP=0 */ | |
1022 | resp[5] = 0x40; /* ATO=0, TAS=1, ATMPE=0, RWWP=0, AUTOLOAD=0 */ | |
1023 | /* resp[6] and [7] are obsolete, thus zero */ | |
1024 | resp[8] = 0xFF; /* Busy timeout period = 0xffff */ | |
1025 | resp[9] = 0xFF; | |
1026 | /* Bytes 10,11: Extended selftest completion time = 0x0000 */ | |
1027 | ||
e61b0a86 | 1028 | return 0; |
5d0f6131 VV |
1029 | } |
1030 | ||
1031 | static int nvme_trans_fill_caching_page(struct nvme_ns *ns, | |
1032 | struct sg_io_hdr *hdr, | |
1033 | u8 *resp, int len) | |
1034 | { | |
e61b0a86 | 1035 | int res = 0; |
5d0f6131 | 1036 | int nvme_sc; |
5d0f6131 VV |
1037 | u32 feature_resp; |
1038 | u8 vwc; | |
1039 | ||
1040 | if (len < MODE_PAGE_CACHING_LEN) | |
e61b0a86 | 1041 | return -EINVAL; |
5d0f6131 | 1042 | |
1a6fe74d | 1043 | nvme_sc = nvme_get_features(ns->ctrl, NVME_FEAT_VOLATILE_WC, 0, NULL, 0, |
5d0f6131 VV |
1044 | &feature_resp); |
1045 | res = nvme_trans_status_code(hdr, nvme_sc); | |
1046 | if (res) | |
e61b0a86 CH |
1047 | return res; |
1048 | ||
5d0f6131 VV |
1049 | vwc = feature_resp & 0x00000001; |
1050 | ||
1051 | resp[0] = MODE_PAGE_CACHING; | |
1052 | resp[1] = MODE_PAGE_CACHING_LEN_FIELD; | |
1053 | resp[2] = vwc << 2; | |
e61b0a86 | 1054 | return 0; |
5d0f6131 VV |
1055 | } |
1056 | ||
1057 | static int nvme_trans_fill_pow_cnd_page(struct nvme_ns *ns, | |
1058 | struct sg_io_hdr *hdr, u8 *resp, | |
1059 | int len) | |
1060 | { | |
5d0f6131 | 1061 | if (len < MODE_PAGE_POW_CND_LEN) |
e61b0a86 | 1062 | return -EINVAL; |
5d0f6131 VV |
1063 | |
1064 | resp[0] = MODE_PAGE_POWER_CONDITION; | |
1065 | resp[1] = MODE_PAGE_POW_CND_LEN_FIELD; | |
1066 | /* All other bytes are zero */ | |
1067 | ||
e61b0a86 | 1068 | return 0; |
5d0f6131 VV |
1069 | } |
1070 | ||
1071 | static int nvme_trans_fill_inf_exc_page(struct nvme_ns *ns, | |
1072 | struct sg_io_hdr *hdr, u8 *resp, | |
1073 | int len) | |
1074 | { | |
5d0f6131 | 1075 | if (len < MODE_PAGE_INF_EXC_LEN) |
e61b0a86 | 1076 | return -EINVAL; |
5d0f6131 VV |
1077 | |
1078 | resp[0] = MODE_PAGE_INFO_EXCEP; | |
1079 | resp[1] = MODE_PAGE_INF_EXC_LEN_FIELD; | |
1080 | resp[2] = 0x88; | |
1081 | /* All other bytes are zero */ | |
1082 | ||
e61b0a86 | 1083 | return 0; |
5d0f6131 VV |
1084 | } |
1085 | ||
1086 | static int nvme_trans_fill_all_pages(struct nvme_ns *ns, struct sg_io_hdr *hdr, | |
1087 | u8 *resp, int len) | |
1088 | { | |
e61b0a86 | 1089 | int res; |
5d0f6131 VV |
1090 | u16 mode_pages_offset_1 = 0; |
1091 | u16 mode_pages_offset_2, mode_pages_offset_3, mode_pages_offset_4; | |
1092 | ||
1093 | mode_pages_offset_2 = mode_pages_offset_1 + MODE_PAGE_CACHING_LEN; | |
1094 | mode_pages_offset_3 = mode_pages_offset_2 + MODE_PAGE_CONTROL_LEN; | |
1095 | mode_pages_offset_4 = mode_pages_offset_3 + MODE_PAGE_POW_CND_LEN; | |
1096 | ||
1097 | res = nvme_trans_fill_caching_page(ns, hdr, &resp[mode_pages_offset_1], | |
1098 | MODE_PAGE_CACHING_LEN); | |
e61b0a86 CH |
1099 | if (res) |
1100 | return res; | |
5d0f6131 VV |
1101 | res = nvme_trans_fill_control_page(ns, hdr, &resp[mode_pages_offset_2], |
1102 | MODE_PAGE_CONTROL_LEN); | |
e61b0a86 CH |
1103 | if (res) |
1104 | return res; | |
5d0f6131 VV |
1105 | res = nvme_trans_fill_pow_cnd_page(ns, hdr, &resp[mode_pages_offset_3], |
1106 | MODE_PAGE_POW_CND_LEN); | |
e61b0a86 CH |
1107 | if (res) |
1108 | return res; | |
1109 | return nvme_trans_fill_inf_exc_page(ns, hdr, &resp[mode_pages_offset_4], | |
5d0f6131 | 1110 | MODE_PAGE_INF_EXC_LEN); |
5d0f6131 VV |
1111 | } |
1112 | ||
1113 | static inline int nvme_trans_get_blk_desc_len(u8 dbd, u8 llbaa) | |
1114 | { | |
1115 | if (dbd == MODE_SENSE_BLK_DESC_ENABLED) { | |
1116 | /* SPC-4: len = 8 x Num_of_descriptors if llbaa = 0, 16x if 1 */ | |
1117 | return 8 * (llbaa + 1) * MODE_SENSE_BLK_DESC_COUNT; | |
1118 | } else { | |
1119 | return 0; | |
1120 | } | |
1121 | } | |
1122 | ||
1123 | static int nvme_trans_mode_page_create(struct nvme_ns *ns, | |
1124 | struct sg_io_hdr *hdr, u8 *cmd, | |
1125 | u16 alloc_len, u8 cdb10, | |
1126 | int (*mode_page_fill_func) | |
1127 | (struct nvme_ns *, | |
1128 | struct sg_io_hdr *hdr, u8 *, int), | |
1129 | u16 mode_pages_tot_len) | |
1130 | { | |
e61b0a86 | 1131 | int res; |
5d0f6131 VV |
1132 | int xfer_len; |
1133 | u8 *response; | |
1134 | u8 dbd, llbaa; | |
1135 | u16 resp_size; | |
1136 | int mph_size; | |
1137 | u16 mode_pages_offset_1; | |
1138 | u16 blk_desc_len, blk_desc_offset, mode_data_length; | |
1139 | ||
3726897e CH |
1140 | dbd = (cmd[1] & MODE_SENSE_DBD_MASK) >> MODE_SENSE_DBD_SHIFT; |
1141 | llbaa = (cmd[1] & MODE_SENSE_LLBAA_MASK) >> MODE_SENSE_LLBAA_SHIFT; | |
1142 | mph_size = cdb10 ? MODE_SENSE10_MPH_SIZE : MODE_SENSE6_MPH_SIZE; | |
1143 | ||
5d0f6131 VV |
1144 | blk_desc_len = nvme_trans_get_blk_desc_len(dbd, llbaa); |
1145 | ||
1146 | resp_size = mph_size + blk_desc_len + mode_pages_tot_len; | |
1147 | /* Refer spc4r34 Table 440 for calculation of Mode data Length field */ | |
1148 | mode_data_length = 3 + (3 * cdb10) + blk_desc_len + mode_pages_tot_len; | |
1149 | ||
1150 | blk_desc_offset = mph_size; | |
1151 | mode_pages_offset_1 = blk_desc_offset + blk_desc_len; | |
1152 | ||
03ea83e9 | 1153 | response = kzalloc(resp_size, GFP_KERNEL); |
5d0f6131 VV |
1154 | if (response == NULL) { |
1155 | res = -ENOMEM; | |
1156 | goto out_mem; | |
1157 | } | |
5d0f6131 VV |
1158 | |
1159 | res = nvme_trans_fill_mode_parm_hdr(&response[0], mph_size, cdb10, | |
1160 | llbaa, mode_data_length, blk_desc_len); | |
e61b0a86 | 1161 | if (res) |
5d0f6131 VV |
1162 | goto out_free; |
1163 | if (blk_desc_len > 0) { | |
1164 | res = nvme_trans_fill_blk_desc(ns, hdr, | |
1165 | &response[blk_desc_offset], | |
1166 | blk_desc_len, llbaa); | |
e61b0a86 | 1167 | if (res) |
5d0f6131 VV |
1168 | goto out_free; |
1169 | } | |
1170 | res = mode_page_fill_func(ns, hdr, &response[mode_pages_offset_1], | |
1171 | mode_pages_tot_len); | |
e61b0a86 | 1172 | if (res) |
5d0f6131 VV |
1173 | goto out_free; |
1174 | ||
1175 | xfer_len = min(alloc_len, resp_size); | |
1176 | res = nvme_trans_copy_to_user(hdr, response, xfer_len); | |
1177 | ||
1178 | out_free: | |
1179 | kfree(response); | |
1180 | out_mem: | |
1181 | return res; | |
1182 | } | |
1183 | ||
1184 | /* Read Capacity Helper Functions */ | |
1185 | ||
1186 | static void nvme_trans_fill_read_cap(u8 *response, struct nvme_id_ns *id_ns, | |
1187 | u8 cdb16) | |
1188 | { | |
1189 | u8 flbas; | |
1190 | u32 lba_length; | |
1191 | u64 rlba; | |
1192 | u8 prot_en; | |
1193 | u8 p_type_lut[4] = {0, 0, 1, 2}; | |
8741ee4c VV |
1194 | __be64 tmp_rlba; |
1195 | __be32 tmp_rlba_32; | |
1196 | __be32 tmp_len; | |
5d0f6131 VV |
1197 | |
1198 | flbas = (id_ns->flbas) & 0x0F; | |
1199 | lba_length = (1 << (id_ns->lbaf[flbas].ds)); | |
1200 | rlba = le64_to_cpup(&id_ns->nsze) - 1; | |
1201 | (id_ns->dps) ? (prot_en = 0x01) : (prot_en = 0); | |
1202 | ||
1203 | if (!cdb16) { | |
1204 | if (rlba > 0xFFFFFFFF) | |
1205 | rlba = 0xFFFFFFFF; | |
1206 | tmp_rlba_32 = cpu_to_be32(rlba); | |
1207 | tmp_len = cpu_to_be32(lba_length); | |
1208 | memcpy(response, &tmp_rlba_32, sizeof(u32)); | |
1209 | memcpy(&response[4], &tmp_len, sizeof(u32)); | |
1210 | } else { | |
1211 | tmp_rlba = cpu_to_be64(rlba); | |
1212 | tmp_len = cpu_to_be32(lba_length); | |
1213 | memcpy(response, &tmp_rlba, sizeof(u64)); | |
1214 | memcpy(&response[8], &tmp_len, sizeof(u32)); | |
1215 | response[12] = (p_type_lut[id_ns->dps & 0x3] << 1) | prot_en; | |
1216 | /* P_I_Exponent = 0x0 | LBPPBE = 0x0 */ | |
1217 | /* LBPME = 0 | LBPRZ = 0 | LALBA = 0x00 */ | |
1218 | /* Bytes 16-31 - Reserved */ | |
1219 | } | |
1220 | } | |
1221 | ||
1222 | /* Start Stop Unit Helper Functions */ | |
1223 | ||
b90c48d0 CH |
1224 | static int nvme_trans_send_activate_fw_cmd(struct nvme_ns *ns, struct sg_io_hdr *hdr, |
1225 | u8 buffer_id) | |
1226 | { | |
1227 | struct nvme_command c; | |
1228 | int nvme_sc; | |
5d0f6131 | 1229 | |
b90c48d0 CH |
1230 | memset(&c, 0, sizeof(c)); |
1231 | c.common.opcode = nvme_admin_activate_fw; | |
1232 | c.common.cdw10[0] = cpu_to_le32(buffer_id | NVME_FWACT_REPL_ACTV); | |
1233 | ||
d29ec824 | 1234 | nvme_sc = nvme_submit_sync_cmd(ns->queue, &c, NULL, 0); |
e61b0a86 | 1235 | return nvme_trans_status_code(hdr, nvme_sc); |
b90c48d0 | 1236 | } |
5d0f6131 | 1237 | |
b90c48d0 | 1238 | static int nvme_trans_send_download_fw_cmd(struct nvme_ns *ns, struct sg_io_hdr *hdr, |
5d0f6131 VV |
1239 | u8 opcode, u32 tot_len, u32 offset, |
1240 | u8 buffer_id) | |
1241 | { | |
5d0f6131 | 1242 | int nvme_sc; |
5d0f6131 | 1243 | struct nvme_command c; |
5d0f6131 | 1244 | |
b90c48d0 CH |
1245 | if (hdr->iovec_count > 0) { |
1246 | /* Assuming SGL is not allowed for this command */ | |
1247 | return nvme_trans_completion(hdr, | |
1248 | SAM_STAT_CHECK_CONDITION, | |
1249 | ILLEGAL_REQUEST, | |
1250 | SCSI_ASC_INVALID_CDB, | |
1251 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
5d0f6131 VV |
1252 | } |
1253 | ||
d29ec824 CH |
1254 | memset(&c, 0, sizeof(c)); |
1255 | c.common.opcode = nvme_admin_download_fw; | |
b90c48d0 CH |
1256 | c.dlfw.numd = cpu_to_le32((tot_len/BYTES_TO_DWORDS) - 1); |
1257 | c.dlfw.offset = cpu_to_le32(offset/BYTES_TO_DWORDS); | |
1258 | ||
4160982e | 1259 | nvme_sc = nvme_submit_user_cmd(ns->ctrl->admin_q, &c, |
d29ec824 CH |
1260 | hdr->dxferp, tot_len, NULL, 0); |
1261 | return nvme_trans_status_code(hdr, nvme_sc); | |
5d0f6131 VV |
1262 | } |
1263 | ||
1264 | /* Mode Select Helper Functions */ | |
1265 | ||
1266 | static inline void nvme_trans_modesel_get_bd_len(u8 *parm_list, u8 cdb10, | |
1267 | u16 *bd_len, u8 *llbaa) | |
1268 | { | |
1269 | if (cdb10) { | |
1270 | /* 10 Byte CDB */ | |
1271 | *bd_len = (parm_list[MODE_SELECT_10_BD_OFFSET] << 8) + | |
1272 | parm_list[MODE_SELECT_10_BD_OFFSET + 1]; | |
9ac16938 | 1273 | *llbaa = parm_list[MODE_SELECT_10_LLBAA_OFFSET] & |
5d0f6131 VV |
1274 | MODE_SELECT_10_LLBAA_MASK; |
1275 | } else { | |
1276 | /* 6 Byte CDB */ | |
1277 | *bd_len = parm_list[MODE_SELECT_6_BD_OFFSET]; | |
1278 | } | |
1279 | } | |
1280 | ||
1281 | static void nvme_trans_modesel_save_bd(struct nvme_ns *ns, u8 *parm_list, | |
1282 | u16 idx, u16 bd_len, u8 llbaa) | |
1283 | { | |
5d0f6131 VV |
1284 | /* Store block descriptor info if a FORMAT UNIT comes later */ |
1285 | /* TODO Saving 1st BD info; what to do if multiple BD received? */ | |
1286 | if (llbaa == 0) { | |
1287 | /* Standard Block Descriptor - spc4r34 7.5.5.1 */ | |
1288 | ns->mode_select_num_blocks = | |
1289 | (parm_list[idx + 1] << 16) + | |
1290 | (parm_list[idx + 2] << 8) + | |
1291 | (parm_list[idx + 3]); | |
1292 | ||
1293 | ns->mode_select_block_len = | |
1294 | (parm_list[idx + 5] << 16) + | |
1295 | (parm_list[idx + 6] << 8) + | |
1296 | (parm_list[idx + 7]); | |
1297 | } else { | |
1298 | /* Long LBA Block Descriptor - sbc3r27 6.4.2.3 */ | |
1299 | ns->mode_select_num_blocks = | |
1300 | (((u64)parm_list[idx + 0]) << 56) + | |
1301 | (((u64)parm_list[idx + 1]) << 48) + | |
1302 | (((u64)parm_list[idx + 2]) << 40) + | |
1303 | (((u64)parm_list[idx + 3]) << 32) + | |
1304 | (((u64)parm_list[idx + 4]) << 24) + | |
1305 | (((u64)parm_list[idx + 5]) << 16) + | |
1306 | (((u64)parm_list[idx + 6]) << 8) + | |
1307 | ((u64)parm_list[idx + 7]); | |
1308 | ||
1309 | ns->mode_select_block_len = | |
1310 | (parm_list[idx + 12] << 24) + | |
1311 | (parm_list[idx + 13] << 16) + | |
1312 | (parm_list[idx + 14] << 8) + | |
1313 | (parm_list[idx + 15]); | |
1314 | } | |
1315 | } | |
1316 | ||
710a143d | 1317 | static int nvme_trans_modesel_get_mp(struct nvme_ns *ns, struct sg_io_hdr *hdr, |
5d0f6131 VV |
1318 | u8 *mode_page, u8 page_code) |
1319 | { | |
e61b0a86 | 1320 | int res = 0; |
5d0f6131 | 1321 | int nvme_sc; |
5d0f6131 VV |
1322 | unsigned dword11; |
1323 | ||
1324 | switch (page_code) { | |
1325 | case MODE_PAGE_CACHING: | |
1326 | dword11 = ((mode_page[2] & CACHING_MODE_PAGE_WCE_MASK) ? 1 : 0); | |
1c63dc66 | 1327 | nvme_sc = nvme_set_features(ns->ctrl, NVME_FEAT_VOLATILE_WC, |
1a6fe74d | 1328 | dword11, NULL, 0, NULL); |
5d0f6131 | 1329 | res = nvme_trans_status_code(hdr, nvme_sc); |
5d0f6131 VV |
1330 | break; |
1331 | case MODE_PAGE_CONTROL: | |
1332 | break; | |
1333 | case MODE_PAGE_POWER_CONDITION: | |
1334 | /* Verify the OS is not trying to set timers */ | |
1335 | if ((mode_page[2] & 0x01) != 0 || (mode_page[3] & 0x0F) != 0) { | |
1336 | res = nvme_trans_completion(hdr, | |
1337 | SAM_STAT_CHECK_CONDITION, | |
1338 | ILLEGAL_REQUEST, | |
1339 | SCSI_ASC_INVALID_PARAMETER, | |
1340 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
5d0f6131 VV |
1341 | break; |
1342 | } | |
1343 | break; | |
1344 | default: | |
1345 | res = nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION, | |
1346 | ILLEGAL_REQUEST, SCSI_ASC_INVALID_CDB, | |
1347 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
5d0f6131 VV |
1348 | break; |
1349 | } | |
1350 | ||
1351 | return res; | |
1352 | } | |
1353 | ||
1354 | static int nvme_trans_modesel_data(struct nvme_ns *ns, struct sg_io_hdr *hdr, | |
1355 | u8 *cmd, u16 parm_list_len, u8 pf, | |
1356 | u8 sp, u8 cdb10) | |
1357 | { | |
e61b0a86 | 1358 | int res; |
5d0f6131 VV |
1359 | u8 *parm_list; |
1360 | u16 bd_len; | |
1361 | u8 llbaa = 0; | |
1362 | u16 index, saved_index; | |
1363 | u8 page_code; | |
1364 | u16 mp_size; | |
1365 | ||
1366 | /* Get parm list from data-in/out buffer */ | |
1367 | parm_list = kmalloc(parm_list_len, GFP_KERNEL); | |
1368 | if (parm_list == NULL) { | |
1369 | res = -ENOMEM; | |
1370 | goto out; | |
1371 | } | |
1372 | ||
1373 | res = nvme_trans_copy_from_user(hdr, parm_list, parm_list_len); | |
e61b0a86 | 1374 | if (res) |
5d0f6131 VV |
1375 | goto out_mem; |
1376 | ||
1377 | nvme_trans_modesel_get_bd_len(parm_list, cdb10, &bd_len, &llbaa); | |
1378 | index = (cdb10) ? (MODE_SELECT_10_MPH_SIZE) : (MODE_SELECT_6_MPH_SIZE); | |
1379 | ||
1380 | if (bd_len != 0) { | |
1381 | /* Block Descriptors present, parse */ | |
1382 | nvme_trans_modesel_save_bd(ns, parm_list, index, bd_len, llbaa); | |
1383 | index += bd_len; | |
1384 | } | |
1385 | saved_index = index; | |
1386 | ||
1387 | /* Multiple mode pages may be present; iterate through all */ | |
1388 | /* In 1st Iteration, don't do NVME Command, only check for CDB errors */ | |
1389 | do { | |
1390 | page_code = parm_list[index] & MODE_SELECT_PAGE_CODE_MASK; | |
1391 | mp_size = parm_list[index + 1] + 2; | |
1392 | if ((page_code != MODE_PAGE_CACHING) && | |
1393 | (page_code != MODE_PAGE_CONTROL) && | |
1394 | (page_code != MODE_PAGE_POWER_CONDITION)) { | |
1395 | res = nvme_trans_completion(hdr, | |
1396 | SAM_STAT_CHECK_CONDITION, | |
1397 | ILLEGAL_REQUEST, | |
1398 | SCSI_ASC_INVALID_CDB, | |
1399 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
1400 | goto out_mem; | |
1401 | } | |
1402 | index += mp_size; | |
1403 | } while (index < parm_list_len); | |
1404 | ||
1405 | /* In 2nd Iteration, do the NVME Commands */ | |
1406 | index = saved_index; | |
1407 | do { | |
1408 | page_code = parm_list[index] & MODE_SELECT_PAGE_CODE_MASK; | |
1409 | mp_size = parm_list[index + 1] + 2; | |
1410 | res = nvme_trans_modesel_get_mp(ns, hdr, &parm_list[index], | |
1411 | page_code); | |
e61b0a86 | 1412 | if (res) |
5d0f6131 VV |
1413 | break; |
1414 | index += mp_size; | |
1415 | } while (index < parm_list_len); | |
1416 | ||
1417 | out_mem: | |
1418 | kfree(parm_list); | |
1419 | out: | |
1420 | return res; | |
1421 | } | |
1422 | ||
1423 | /* Format Unit Helper Functions */ | |
1424 | ||
1425 | static int nvme_trans_fmt_set_blk_size_count(struct nvme_ns *ns, | |
1426 | struct sg_io_hdr *hdr) | |
1427 | { | |
e61b0a86 | 1428 | int res = 0; |
5d0f6131 | 1429 | int nvme_sc; |
5d0f6131 VV |
1430 | u8 flbas; |
1431 | ||
1432 | /* | |
1433 | * SCSI Expects a MODE SELECT would have been issued prior to | |
1434 | * a FORMAT UNIT, and the block size and number would be used | |
1435 | * from the block descriptor in it. If a MODE SELECT had not | |
1436 | * been issued, FORMAT shall use the current values for both. | |
1437 | */ | |
1438 | ||
1439 | if (ns->mode_select_num_blocks == 0 || ns->mode_select_block_len == 0) { | |
d29ec824 CH |
1440 | struct nvme_id_ns *id_ns; |
1441 | ||
1c63dc66 | 1442 | nvme_sc = nvme_identify_ns(ns->ctrl, ns->ns_id, &id_ns); |
5d0f6131 VV |
1443 | res = nvme_trans_status_code(hdr, nvme_sc); |
1444 | if (res) | |
d29ec824 | 1445 | return res; |
5d0f6131 VV |
1446 | |
1447 | if (ns->mode_select_num_blocks == 0) | |
8741ee4c | 1448 | ns->mode_select_num_blocks = le64_to_cpu(id_ns->ncap); |
5d0f6131 VV |
1449 | if (ns->mode_select_block_len == 0) { |
1450 | flbas = (id_ns->flbas) & 0x0F; | |
1451 | ns->mode_select_block_len = | |
1452 | (1 << (id_ns->lbaf[flbas].ds)); | |
1453 | } | |
d29ec824 CH |
1454 | |
1455 | kfree(id_ns); | |
5d0f6131 | 1456 | } |
d29ec824 CH |
1457 | |
1458 | return 0; | |
5d0f6131 VV |
1459 | } |
1460 | ||
1461 | static int nvme_trans_fmt_get_parm_header(struct sg_io_hdr *hdr, u8 len, | |
1462 | u8 format_prot_info, u8 *nvme_pf_code) | |
1463 | { | |
e61b0a86 | 1464 | int res; |
5d0f6131 VV |
1465 | u8 *parm_list; |
1466 | u8 pf_usage, pf_code; | |
1467 | ||
1468 | parm_list = kmalloc(len, GFP_KERNEL); | |
1469 | if (parm_list == NULL) { | |
1470 | res = -ENOMEM; | |
1471 | goto out; | |
1472 | } | |
1473 | res = nvme_trans_copy_from_user(hdr, parm_list, len); | |
e61b0a86 | 1474 | if (res) |
5d0f6131 VV |
1475 | goto out_mem; |
1476 | ||
1477 | if ((parm_list[FORMAT_UNIT_IMMED_OFFSET] & | |
1478 | FORMAT_UNIT_IMMED_MASK) != 0) { | |
1479 | res = nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION, | |
1480 | ILLEGAL_REQUEST, SCSI_ASC_INVALID_CDB, | |
1481 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
1482 | goto out_mem; | |
1483 | } | |
1484 | ||
1485 | if (len == FORMAT_UNIT_LONG_PARM_LIST_LEN && | |
1486 | (parm_list[FORMAT_UNIT_PROT_INT_OFFSET] & 0x0F) != 0) { | |
1487 | res = nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION, | |
1488 | ILLEGAL_REQUEST, SCSI_ASC_INVALID_CDB, | |
1489 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
1490 | goto out_mem; | |
1491 | } | |
1492 | pf_usage = parm_list[FORMAT_UNIT_PROT_FIELD_USAGE_OFFSET] & | |
1493 | FORMAT_UNIT_PROT_FIELD_USAGE_MASK; | |
1494 | pf_code = (pf_usage << 2) | format_prot_info; | |
1495 | switch (pf_code) { | |
1496 | case 0: | |
1497 | *nvme_pf_code = 0; | |
1498 | break; | |
1499 | case 2: | |
1500 | *nvme_pf_code = 1; | |
1501 | break; | |
1502 | case 3: | |
1503 | *nvme_pf_code = 2; | |
1504 | break; | |
1505 | case 7: | |
1506 | *nvme_pf_code = 3; | |
1507 | break; | |
1508 | default: | |
1509 | res = nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION, | |
1510 | ILLEGAL_REQUEST, SCSI_ASC_INVALID_CDB, | |
1511 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
1512 | break; | |
1513 | } | |
1514 | ||
1515 | out_mem: | |
1516 | kfree(parm_list); | |
1517 | out: | |
1518 | return res; | |
1519 | } | |
1520 | ||
1521 | static int nvme_trans_fmt_send_cmd(struct nvme_ns *ns, struct sg_io_hdr *hdr, | |
1522 | u8 prot_info) | |
1523 | { | |
e61b0a86 | 1524 | int res; |
5d0f6131 | 1525 | int nvme_sc; |
5d0f6131 VV |
1526 | struct nvme_id_ns *id_ns; |
1527 | u8 i; | |
6bcb5268 | 1528 | u8 nlbaf; |
5d0f6131 VV |
1529 | u8 selected_lbaf = 0xFF; |
1530 | u32 cdw10 = 0; | |
1531 | struct nvme_command c; | |
1532 | ||
1533 | /* Loop thru LBAF's in id_ns to match reqd lbaf, put in cdw10 */ | |
1c63dc66 | 1534 | nvme_sc = nvme_identify_ns(ns->ctrl, ns->ns_id, &id_ns); |
5d0f6131 VV |
1535 | res = nvme_trans_status_code(hdr, nvme_sc); |
1536 | if (res) | |
d29ec824 | 1537 | return res; |
e61b0a86 | 1538 | |
5d0f6131 VV |
1539 | nlbaf = id_ns->nlbaf; |
1540 | ||
1541 | for (i = 0; i < nlbaf; i++) { | |
1542 | if (ns->mode_select_block_len == (1 << (id_ns->lbaf[i].ds))) { | |
1543 | selected_lbaf = i; | |
1544 | break; | |
1545 | } | |
1546 | } | |
1547 | if (selected_lbaf > 0x0F) { | |
1548 | res = nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION, | |
1549 | ILLEGAL_REQUEST, SCSI_ASC_INVALID_PARAMETER, | |
1550 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
1551 | } | |
8741ee4c | 1552 | if (ns->mode_select_num_blocks != le64_to_cpu(id_ns->ncap)) { |
5d0f6131 VV |
1553 | res = nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION, |
1554 | ILLEGAL_REQUEST, SCSI_ASC_INVALID_PARAMETER, | |
1555 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
1556 | } | |
1557 | ||
1558 | cdw10 |= prot_info << 5; | |
1559 | cdw10 |= selected_lbaf & 0x0F; | |
1560 | memset(&c, 0, sizeof(c)); | |
1561 | c.format.opcode = nvme_admin_format_nvm; | |
8741ee4c | 1562 | c.format.nsid = cpu_to_le32(ns->ns_id); |
5d0f6131 VV |
1563 | c.format.cdw10 = cpu_to_le32(cdw10); |
1564 | ||
1c63dc66 | 1565 | nvme_sc = nvme_submit_sync_cmd(ns->ctrl->admin_q, &c, NULL, 0); |
5d0f6131 | 1566 | res = nvme_trans_status_code(hdr, nvme_sc); |
5d0f6131 | 1567 | |
d29ec824 | 1568 | kfree(id_ns); |
5d0f6131 VV |
1569 | return res; |
1570 | } | |
1571 | ||
5d0f6131 VV |
1572 | static inline u32 nvme_trans_io_get_num_cmds(struct sg_io_hdr *hdr, |
1573 | struct nvme_trans_io_cdb *cdb_info, | |
1574 | u32 max_blocks) | |
1575 | { | |
1576 | /* If using iovecs, send one nvme command per vector */ | |
1577 | if (hdr->iovec_count > 0) | |
1578 | return hdr->iovec_count; | |
1579 | else if (cdb_info->xfer_len > max_blocks) | |
1580 | return ((cdb_info->xfer_len - 1) / max_blocks) + 1; | |
1581 | else | |
1582 | return 1; | |
1583 | } | |
1584 | ||
1585 | static u16 nvme_trans_io_get_control(struct nvme_ns *ns, | |
1586 | struct nvme_trans_io_cdb *cdb_info) | |
1587 | { | |
1588 | u16 control = 0; | |
1589 | ||
1590 | /* When Protection information support is added, implement here */ | |
1591 | ||
1592 | if (cdb_info->fua > 0) | |
1593 | control |= NVME_RW_FUA; | |
1594 | ||
1595 | return control; | |
1596 | } | |
1597 | ||
1598 | static int nvme_trans_do_nvme_io(struct nvme_ns *ns, struct sg_io_hdr *hdr, | |
1599 | struct nvme_trans_io_cdb *cdb_info, u8 is_write) | |
1600 | { | |
e61b0a86 | 1601 | int nvme_sc = NVME_SC_SUCCESS; |
5d0f6131 | 1602 | u32 num_cmds; |
5d0f6131 VV |
1603 | u64 unit_len; |
1604 | u64 unit_num_blocks; /* Number of blocks to xfer in each nvme cmd */ | |
1605 | u32 retcode; | |
1606 | u32 i = 0; | |
1607 | u64 nvme_offset = 0; | |
8741ee4c | 1608 | void __user *next_mapping_addr; |
5d0f6131 VV |
1609 | struct nvme_command c; |
1610 | u8 opcode = (is_write ? nvme_cmd_write : nvme_cmd_read); | |
1611 | u16 control; | |
7fad1fd4 | 1612 | u32 max_blocks = queue_max_hw_sectors(ns->queue) >> (ns->lba_shift - 9); |
5d0f6131 VV |
1613 | |
1614 | num_cmds = nvme_trans_io_get_num_cmds(hdr, cdb_info, max_blocks); | |
1615 | ||
1616 | /* | |
1617 | * This loop handles two cases. | |
1618 | * First, when an SGL is used in the form of an iovec list: | |
1619 | * - Use iov_base as the next mapping address for the nvme command_id | |
1620 | * - Use iov_len as the data transfer length for the command. | |
1621 | * Second, when we have a single buffer | |
1622 | * - If larger than max_blocks, split into chunks, offset | |
1623 | * each nvme command accordingly. | |
1624 | */ | |
1625 | for (i = 0; i < num_cmds; i++) { | |
1626 | memset(&c, 0, sizeof(c)); | |
1627 | if (hdr->iovec_count > 0) { | |
8741ee4c VV |
1628 | struct sg_iovec sgl; |
1629 | ||
1630 | retcode = copy_from_user(&sgl, hdr->dxferp + | |
1631 | i * sizeof(struct sg_iovec), | |
1632 | sizeof(struct sg_iovec)); | |
1633 | if (retcode) | |
1634 | return -EFAULT; | |
1635 | unit_len = sgl.iov_len; | |
5d0f6131 | 1636 | unit_num_blocks = unit_len >> ns->lba_shift; |
8741ee4c | 1637 | next_mapping_addr = sgl.iov_base; |
5d0f6131 VV |
1638 | } else { |
1639 | unit_num_blocks = min((u64)max_blocks, | |
1640 | (cdb_info->xfer_len - nvme_offset)); | |
1641 | unit_len = unit_num_blocks << ns->lba_shift; | |
1642 | next_mapping_addr = hdr->dxferp + | |
1643 | ((1 << ns->lba_shift) * nvme_offset); | |
1644 | } | |
1645 | ||
1646 | c.rw.opcode = opcode; | |
1647 | c.rw.nsid = cpu_to_le32(ns->ns_id); | |
1648 | c.rw.slba = cpu_to_le64(cdb_info->lba + nvme_offset); | |
1649 | c.rw.length = cpu_to_le16(unit_num_blocks - 1); | |
1650 | control = nvme_trans_io_get_control(ns, cdb_info); | |
1651 | c.rw.control = cpu_to_le16(control); | |
1652 | ||
d29ec824 CH |
1653 | if (get_capacity(ns->disk) - unit_num_blocks < |
1654 | cdb_info->lba + nvme_offset) { | |
1655 | nvme_sc = NVME_SC_LBA_RANGE; | |
1656 | break; | |
5d0f6131 | 1657 | } |
4160982e | 1658 | nvme_sc = nvme_submit_user_cmd(ns->queue, &c, |
d29ec824 CH |
1659 | next_mapping_addr, unit_len, NULL, 0); |
1660 | if (nvme_sc) | |
1661 | break; | |
5d0f6131 VV |
1662 | |
1663 | nvme_offset += unit_num_blocks; | |
5d0f6131 | 1664 | } |
5d0f6131 | 1665 | |
e61b0a86 | 1666 | return nvme_trans_status_code(hdr, nvme_sc); |
5d0f6131 VV |
1667 | } |
1668 | ||
1669 | ||
1670 | /* SCSI Command Translation Functions */ | |
1671 | ||
1672 | static int nvme_trans_io(struct nvme_ns *ns, struct sg_io_hdr *hdr, u8 is_write, | |
1673 | u8 *cmd) | |
1674 | { | |
e61b0a86 | 1675 | int res = 0; |
cbbb7a2e | 1676 | struct nvme_trans_io_cdb cdb_info = { 0, }; |
5d0f6131 VV |
1677 | u8 opcode = cmd[0]; |
1678 | u64 xfer_bytes; | |
1679 | u64 sum_iov_len = 0; | |
8741ee4c | 1680 | struct sg_iovec sgl; |
5d0f6131 | 1681 | int i; |
8741ee4c | 1682 | size_t not_copied; |
5d0f6131 | 1683 | |
cbbb7a2e CH |
1684 | /* |
1685 | * The FUA and WPROTECT fields are not supported in 6-byte CDBs, | |
1686 | * but always in the same place for all others. | |
1687 | */ | |
1688 | switch (opcode) { | |
1689 | case WRITE_6: | |
1690 | case READ_6: | |
1691 | break; | |
1692 | default: | |
1693 | cdb_info.fua = cmd[1] & 0x8; | |
1694 | cdb_info.prot_info = (cmd[1] & 0xe0) >> 5; | |
772ce435 CH |
1695 | if (cdb_info.prot_info && !ns->pi_type) { |
1696 | return nvme_trans_completion(hdr, | |
1697 | SAM_STAT_CHECK_CONDITION, | |
1698 | ILLEGAL_REQUEST, | |
1699 | SCSI_ASC_INVALID_CDB, | |
1700 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
1701 | } | |
cbbb7a2e CH |
1702 | } |
1703 | ||
5d0f6131 VV |
1704 | switch (opcode) { |
1705 | case WRITE_6: | |
1706 | case READ_6: | |
cbbb7a2e CH |
1707 | cdb_info.lba = get_unaligned_be24(&cmd[1]); |
1708 | cdb_info.xfer_len = cmd[4]; | |
1709 | if (cdb_info.xfer_len == 0) | |
1710 | cdb_info.xfer_len = 256; | |
5d0f6131 VV |
1711 | break; |
1712 | case WRITE_10: | |
1713 | case READ_10: | |
cbbb7a2e CH |
1714 | cdb_info.lba = get_unaligned_be32(&cmd[2]); |
1715 | cdb_info.xfer_len = get_unaligned_be16(&cmd[7]); | |
5d0f6131 VV |
1716 | break; |
1717 | case WRITE_12: | |
1718 | case READ_12: | |
cbbb7a2e CH |
1719 | cdb_info.lba = get_unaligned_be32(&cmd[2]); |
1720 | cdb_info.xfer_len = get_unaligned_be32(&cmd[6]); | |
5d0f6131 VV |
1721 | break; |
1722 | case WRITE_16: | |
1723 | case READ_16: | |
cbbb7a2e CH |
1724 | cdb_info.lba = get_unaligned_be64(&cmd[2]); |
1725 | cdb_info.xfer_len = get_unaligned_be32(&cmd[10]); | |
5d0f6131 VV |
1726 | break; |
1727 | default: | |
1728 | /* Will never really reach here */ | |
e61b0a86 | 1729 | res = -EIO; |
5d0f6131 VV |
1730 | goto out; |
1731 | } | |
1732 | ||
1733 | /* Calculate total length of transfer (in bytes) */ | |
1734 | if (hdr->iovec_count > 0) { | |
5d0f6131 | 1735 | for (i = 0; i < hdr->iovec_count; i++) { |
8741ee4c VV |
1736 | not_copied = copy_from_user(&sgl, hdr->dxferp + |
1737 | i * sizeof(struct sg_iovec), | |
1738 | sizeof(struct sg_iovec)); | |
1739 | if (not_copied) | |
1740 | return -EFAULT; | |
1741 | sum_iov_len += sgl.iov_len; | |
5d0f6131 | 1742 | /* IO vector sizes should be multiples of block size */ |
8741ee4c | 1743 | if (sgl.iov_len % (1 << ns->lba_shift) != 0) { |
5d0f6131 VV |
1744 | res = nvme_trans_completion(hdr, |
1745 | SAM_STAT_CHECK_CONDITION, | |
1746 | ILLEGAL_REQUEST, | |
1747 | SCSI_ASC_INVALID_PARAMETER, | |
1748 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
1749 | goto out; | |
1750 | } | |
1751 | } | |
1752 | } else { | |
1753 | sum_iov_len = hdr->dxfer_len; | |
1754 | } | |
1755 | ||
1756 | /* As Per sg ioctl howto, if the lengths differ, use the lower one */ | |
1757 | xfer_bytes = min(((u64)hdr->dxfer_len), sum_iov_len); | |
1758 | ||
1759 | /* If block count and actual data buffer size dont match, error out */ | |
1760 | if (xfer_bytes != (cdb_info.xfer_len << ns->lba_shift)) { | |
1761 | res = -EINVAL; | |
1762 | goto out; | |
1763 | } | |
1764 | ||
1765 | /* Check for 0 length transfer - it is not illegal */ | |
1766 | if (cdb_info.xfer_len == 0) | |
1767 | goto out; | |
1768 | ||
1769 | /* Send NVMe IO Command(s) */ | |
1770 | res = nvme_trans_do_nvme_io(ns, hdr, &cdb_info, is_write); | |
e61b0a86 | 1771 | if (res) |
5d0f6131 VV |
1772 | goto out; |
1773 | ||
1774 | out: | |
1775 | return res; | |
1776 | } | |
1777 | ||
1778 | static int nvme_trans_inquiry(struct nvme_ns *ns, struct sg_io_hdr *hdr, | |
1779 | u8 *cmd) | |
1780 | { | |
e61b0a86 | 1781 | int res = 0; |
5d0f6131 VV |
1782 | u8 evpd; |
1783 | u8 page_code; | |
1784 | int alloc_len; | |
1785 | u8 *inq_response; | |
1786 | ||
3726897e CH |
1787 | evpd = cmd[1] & 0x01; |
1788 | page_code = cmd[2]; | |
1789 | alloc_len = get_unaligned_be16(&cmd[3]); | |
5d0f6131 | 1790 | |
3fd61b20 CH |
1791 | inq_response = kmalloc(max(alloc_len, STANDARD_INQUIRY_LENGTH), |
1792 | GFP_KERNEL); | |
5d0f6131 VV |
1793 | if (inq_response == NULL) { |
1794 | res = -ENOMEM; | |
1795 | goto out_mem; | |
1796 | } | |
1797 | ||
1798 | if (evpd == 0) { | |
1799 | if (page_code == INQ_STANDARD_INQUIRY_PAGE) { | |
1800 | res = nvme_trans_standard_inquiry_page(ns, hdr, | |
1801 | inq_response, alloc_len); | |
1802 | } else { | |
1803 | res = nvme_trans_completion(hdr, | |
1804 | SAM_STAT_CHECK_CONDITION, | |
1805 | ILLEGAL_REQUEST, | |
1806 | SCSI_ASC_INVALID_CDB, | |
1807 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
1808 | } | |
1809 | } else { | |
1810 | switch (page_code) { | |
1811 | case VPD_SUPPORTED_PAGES: | |
1812 | res = nvme_trans_supported_vpd_pages(ns, hdr, | |
1813 | inq_response, alloc_len); | |
1814 | break; | |
1815 | case VPD_SERIAL_NUMBER: | |
1816 | res = nvme_trans_unit_serial_page(ns, hdr, inq_response, | |
1817 | alloc_len); | |
1818 | break; | |
1819 | case VPD_DEVICE_IDENTIFIERS: | |
1820 | res = nvme_trans_device_id_page(ns, hdr, inq_response, | |
1821 | alloc_len); | |
1822 | break; | |
1823 | case VPD_EXTENDED_INQUIRY: | |
1824 | res = nvme_trans_ext_inq_page(ns, hdr, alloc_len); | |
1825 | break; | |
7f749d9c KB |
1826 | case VPD_BLOCK_LIMITS: |
1827 | res = nvme_trans_bdev_limits_page(ns, hdr, inq_response, | |
1828 | alloc_len); | |
1829 | break; | |
5d0f6131 VV |
1830 | case VPD_BLOCK_DEV_CHARACTERISTICS: |
1831 | res = nvme_trans_bdev_char_page(ns, hdr, alloc_len); | |
1832 | break; | |
1833 | default: | |
1834 | res = nvme_trans_completion(hdr, | |
1835 | SAM_STAT_CHECK_CONDITION, | |
1836 | ILLEGAL_REQUEST, | |
1837 | SCSI_ASC_INVALID_CDB, | |
1838 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
1839 | break; | |
1840 | } | |
1841 | } | |
1842 | kfree(inq_response); | |
1843 | out_mem: | |
1844 | return res; | |
1845 | } | |
1846 | ||
1847 | static int nvme_trans_log_sense(struct nvme_ns *ns, struct sg_io_hdr *hdr, | |
1848 | u8 *cmd) | |
1849 | { | |
e61b0a86 | 1850 | int res; |
5d0f6131 | 1851 | u16 alloc_len; |
5d0f6131 VV |
1852 | u8 pc; |
1853 | u8 page_code; | |
1854 | ||
3726897e | 1855 | if (cmd[1] != LOG_SENSE_CDB_SP_NOT_ENABLED) { |
5d0f6131 VV |
1856 | res = nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION, |
1857 | ILLEGAL_REQUEST, SCSI_ASC_INVALID_CDB, | |
1858 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
1859 | goto out; | |
1860 | } | |
3726897e CH |
1861 | |
1862 | page_code = cmd[2] & LOG_SENSE_CDB_PAGE_CODE_MASK; | |
1863 | pc = (cmd[2] & LOG_SENSE_CDB_PC_MASK) >> LOG_SENSE_CDB_PC_SHIFT; | |
5d0f6131 VV |
1864 | if (pc != LOG_SENSE_CDB_PC_CUMULATIVE_VALUES) { |
1865 | res = nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION, | |
1866 | ILLEGAL_REQUEST, SCSI_ASC_INVALID_CDB, | |
1867 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
1868 | goto out; | |
1869 | } | |
3726897e | 1870 | alloc_len = get_unaligned_be16(&cmd[7]); |
5d0f6131 VV |
1871 | switch (page_code) { |
1872 | case LOG_PAGE_SUPPORTED_LOG_PAGES_PAGE: | |
1873 | res = nvme_trans_log_supp_pages(ns, hdr, alloc_len); | |
1874 | break; | |
1875 | case LOG_PAGE_INFORMATIONAL_EXCEPTIONS_PAGE: | |
1876 | res = nvme_trans_log_info_exceptions(ns, hdr, alloc_len); | |
1877 | break; | |
1878 | case LOG_PAGE_TEMPERATURE_PAGE: | |
1879 | res = nvme_trans_log_temperature(ns, hdr, alloc_len); | |
1880 | break; | |
1881 | default: | |
1882 | res = nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION, | |
1883 | ILLEGAL_REQUEST, SCSI_ASC_INVALID_CDB, | |
1884 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
1885 | break; | |
1886 | } | |
1887 | ||
1888 | out: | |
1889 | return res; | |
1890 | } | |
1891 | ||
1892 | static int nvme_trans_mode_select(struct nvme_ns *ns, struct sg_io_hdr *hdr, | |
1893 | u8 *cmd) | |
1894 | { | |
5d0f6131 VV |
1895 | u8 cdb10 = 0; |
1896 | u16 parm_list_len; | |
1897 | u8 page_format; | |
1898 | u8 save_pages; | |
1899 | ||
3726897e CH |
1900 | page_format = cmd[1] & MODE_SELECT_CDB_PAGE_FORMAT_MASK; |
1901 | save_pages = cmd[1] & MODE_SELECT_CDB_SAVE_PAGES_MASK; | |
5d0f6131 | 1902 | |
3726897e CH |
1903 | if (cmd[0] == MODE_SELECT) { |
1904 | parm_list_len = cmd[4]; | |
5d0f6131 | 1905 | } else { |
3726897e | 1906 | parm_list_len = cmd[7]; |
5d0f6131 VV |
1907 | cdb10 = 1; |
1908 | } | |
1909 | ||
1910 | if (parm_list_len != 0) { | |
1911 | /* | |
1912 | * According to SPC-4 r24, a paramter list length field of 0 | |
1913 | * shall not be considered an error | |
1914 | */ | |
e61b0a86 | 1915 | return nvme_trans_modesel_data(ns, hdr, cmd, parm_list_len, |
5d0f6131 VV |
1916 | page_format, save_pages, cdb10); |
1917 | } | |
1918 | ||
e61b0a86 | 1919 | return 0; |
5d0f6131 VV |
1920 | } |
1921 | ||
1922 | static int nvme_trans_mode_sense(struct nvme_ns *ns, struct sg_io_hdr *hdr, | |
1923 | u8 *cmd) | |
1924 | { | |
e61b0a86 | 1925 | int res = 0; |
5d0f6131 VV |
1926 | u16 alloc_len; |
1927 | u8 cdb10 = 0; | |
5d0f6131 | 1928 | |
3726897e CH |
1929 | if (cmd[0] == MODE_SENSE) { |
1930 | alloc_len = cmd[4]; | |
5d0f6131 | 1931 | } else { |
3726897e | 1932 | alloc_len = get_unaligned_be16(&cmd[7]); |
5d0f6131 VV |
1933 | cdb10 = 1; |
1934 | } | |
1935 | ||
3726897e CH |
1936 | if ((cmd[2] & MODE_SENSE_PAGE_CONTROL_MASK) != |
1937 | MODE_SENSE_PC_CURRENT_VALUES) { | |
5d0f6131 VV |
1938 | res = nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION, |
1939 | ILLEGAL_REQUEST, SCSI_ASC_INVALID_CDB, | |
1940 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
1941 | goto out; | |
1942 | } | |
1943 | ||
3726897e | 1944 | switch (cmd[2] & MODE_SENSE_PAGE_CODE_MASK) { |
5d0f6131 VV |
1945 | case MODE_PAGE_CACHING: |
1946 | res = nvme_trans_mode_page_create(ns, hdr, cmd, alloc_len, | |
1947 | cdb10, | |
1948 | &nvme_trans_fill_caching_page, | |
1949 | MODE_PAGE_CACHING_LEN); | |
1950 | break; | |
1951 | case MODE_PAGE_CONTROL: | |
1952 | res = nvme_trans_mode_page_create(ns, hdr, cmd, alloc_len, | |
1953 | cdb10, | |
1954 | &nvme_trans_fill_control_page, | |
1955 | MODE_PAGE_CONTROL_LEN); | |
1956 | break; | |
1957 | case MODE_PAGE_POWER_CONDITION: | |
1958 | res = nvme_trans_mode_page_create(ns, hdr, cmd, alloc_len, | |
1959 | cdb10, | |
1960 | &nvme_trans_fill_pow_cnd_page, | |
1961 | MODE_PAGE_POW_CND_LEN); | |
1962 | break; | |
1963 | case MODE_PAGE_INFO_EXCEP: | |
1964 | res = nvme_trans_mode_page_create(ns, hdr, cmd, alloc_len, | |
1965 | cdb10, | |
1966 | &nvme_trans_fill_inf_exc_page, | |
1967 | MODE_PAGE_INF_EXC_LEN); | |
1968 | break; | |
1969 | case MODE_PAGE_RETURN_ALL: | |
1970 | res = nvme_trans_mode_page_create(ns, hdr, cmd, alloc_len, | |
1971 | cdb10, | |
1972 | &nvme_trans_fill_all_pages, | |
1973 | MODE_PAGE_ALL_LEN); | |
1974 | break; | |
1975 | default: | |
1976 | res = nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION, | |
1977 | ILLEGAL_REQUEST, SCSI_ASC_INVALID_CDB, | |
1978 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
1979 | break; | |
1980 | } | |
1981 | ||
1982 | out: | |
1983 | return res; | |
1984 | } | |
1985 | ||
1986 | static int nvme_trans_read_capacity(struct nvme_ns *ns, struct sg_io_hdr *hdr, | |
3726897e | 1987 | u8 *cmd, u8 cdb16) |
5d0f6131 | 1988 | { |
e61b0a86 | 1989 | int res; |
5d0f6131 | 1990 | int nvme_sc; |
3726897e CH |
1991 | u32 alloc_len; |
1992 | u32 resp_size; | |
5d0f6131 | 1993 | u32 xfer_len; |
5d0f6131 VV |
1994 | struct nvme_id_ns *id_ns; |
1995 | u8 *response; | |
1996 | ||
5d0f6131 | 1997 | if (cdb16) { |
3726897e | 1998 | alloc_len = get_unaligned_be32(&cmd[10]); |
5d0f6131 | 1999 | resp_size = READ_CAP_16_RESP_SIZE; |
3726897e CH |
2000 | } else { |
2001 | alloc_len = READ_CAP_10_RESP_SIZE; | |
2002 | resp_size = READ_CAP_10_RESP_SIZE; | |
5d0f6131 VV |
2003 | } |
2004 | ||
1c63dc66 | 2005 | nvme_sc = nvme_identify_ns(ns->ctrl, ns->ns_id, &id_ns); |
5d0f6131 VV |
2006 | res = nvme_trans_status_code(hdr, nvme_sc); |
2007 | if (res) | |
d29ec824 | 2008 | return res; |
5d0f6131 | 2009 | |
03ea83e9 | 2010 | response = kzalloc(resp_size, GFP_KERNEL); |
5d0f6131 VV |
2011 | if (response == NULL) { |
2012 | res = -ENOMEM; | |
d29ec824 | 2013 | goto out_free_id; |
5d0f6131 | 2014 | } |
5d0f6131 VV |
2015 | nvme_trans_fill_read_cap(response, id_ns, cdb16); |
2016 | ||
2017 | xfer_len = min(alloc_len, resp_size); | |
2018 | res = nvme_trans_copy_to_user(hdr, response, xfer_len); | |
2019 | ||
2020 | kfree(response); | |
d29ec824 CH |
2021 | out_free_id: |
2022 | kfree(id_ns); | |
5d0f6131 VV |
2023 | return res; |
2024 | } | |
2025 | ||
2026 | static int nvme_trans_report_luns(struct nvme_ns *ns, struct sg_io_hdr *hdr, | |
2027 | u8 *cmd) | |
2028 | { | |
e61b0a86 | 2029 | int res; |
5d0f6131 VV |
2030 | int nvme_sc; |
2031 | u32 alloc_len, xfer_len, resp_size; | |
5d0f6131 | 2032 | u8 *response; |
5d0f6131 VV |
2033 | struct nvme_id_ctrl *id_ctrl; |
2034 | u32 ll_length, lun_id; | |
2035 | u8 lun_id_offset = REPORT_LUNS_FIRST_LUN_OFFSET; | |
8741ee4c | 2036 | __be32 tmp_len; |
5d0f6131 | 2037 | |
3726897e CH |
2038 | switch (cmd[2]) { |
2039 | default: | |
2040 | return nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION, | |
5d0f6131 VV |
2041 | ILLEGAL_REQUEST, SCSI_ASC_INVALID_CDB, |
2042 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
3726897e CH |
2043 | case ALL_LUNS_RETURNED: |
2044 | case ALL_WELL_KNOWN_LUNS_RETURNED: | |
2045 | case RESTRICTED_LUNS_RETURNED: | |
1c63dc66 | 2046 | nvme_sc = nvme_identify_ctrl(ns->ctrl, &id_ctrl); |
5d0f6131 VV |
2047 | res = nvme_trans_status_code(hdr, nvme_sc); |
2048 | if (res) | |
d29ec824 | 2049 | return res; |
e61b0a86 | 2050 | |
8741ee4c | 2051 | ll_length = le32_to_cpu(id_ctrl->nn) * LUN_ENTRY_SIZE; |
5d0f6131 VV |
2052 | resp_size = ll_length + LUN_DATA_HEADER_SIZE; |
2053 | ||
3726897e | 2054 | alloc_len = get_unaligned_be32(&cmd[6]); |
5d0f6131 VV |
2055 | if (alloc_len < resp_size) { |
2056 | res = nvme_trans_completion(hdr, | |
2057 | SAM_STAT_CHECK_CONDITION, | |
2058 | ILLEGAL_REQUEST, SCSI_ASC_INVALID_CDB, | |
2059 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
d29ec824 | 2060 | goto out_free_id; |
5d0f6131 VV |
2061 | } |
2062 | ||
03ea83e9 | 2063 | response = kzalloc(resp_size, GFP_KERNEL); |
5d0f6131 VV |
2064 | if (response == NULL) { |
2065 | res = -ENOMEM; | |
d29ec824 | 2066 | goto out_free_id; |
5d0f6131 | 2067 | } |
5d0f6131 VV |
2068 | |
2069 | /* The first LUN ID will always be 0 per the SAM spec */ | |
8741ee4c | 2070 | for (lun_id = 0; lun_id < le32_to_cpu(id_ctrl->nn); lun_id++) { |
5d0f6131 VV |
2071 | /* |
2072 | * Set the LUN Id and then increment to the next LUN | |
2073 | * location in the parameter data. | |
2074 | */ | |
8741ee4c | 2075 | __be64 tmp_id = cpu_to_be64(lun_id); |
5d0f6131 VV |
2076 | memcpy(&response[lun_id_offset], &tmp_id, sizeof(u64)); |
2077 | lun_id_offset += LUN_ENTRY_SIZE; | |
2078 | } | |
2079 | tmp_len = cpu_to_be32(ll_length); | |
2080 | memcpy(response, &tmp_len, sizeof(u32)); | |
2081 | } | |
2082 | ||
2083 | xfer_len = min(alloc_len, resp_size); | |
2084 | res = nvme_trans_copy_to_user(hdr, response, xfer_len); | |
2085 | ||
2086 | kfree(response); | |
d29ec824 CH |
2087 | out_free_id: |
2088 | kfree(id_ctrl); | |
5d0f6131 VV |
2089 | return res; |
2090 | } | |
2091 | ||
2092 | static int nvme_trans_request_sense(struct nvme_ns *ns, struct sg_io_hdr *hdr, | |
2093 | u8 *cmd) | |
2094 | { | |
e61b0a86 | 2095 | int res; |
5d0f6131 VV |
2096 | u8 alloc_len, xfer_len, resp_size; |
2097 | u8 desc_format; | |
2098 | u8 *response; | |
2099 | ||
3726897e CH |
2100 | desc_format = cmd[1] & 0x01; |
2101 | alloc_len = cmd[4]; | |
5d0f6131 VV |
2102 | |
2103 | resp_size = ((desc_format) ? (DESC_FMT_SENSE_DATA_SIZE) : | |
2104 | (FIXED_FMT_SENSE_DATA_SIZE)); | |
03ea83e9 | 2105 | response = kzalloc(resp_size, GFP_KERNEL); |
5d0f6131 VV |
2106 | if (response == NULL) { |
2107 | res = -ENOMEM; | |
2108 | goto out; | |
2109 | } | |
5d0f6131 | 2110 | |
3726897e | 2111 | if (desc_format) { |
5d0f6131 VV |
2112 | /* Descriptor Format Sense Data */ |
2113 | response[0] = DESC_FORMAT_SENSE_DATA; | |
2114 | response[1] = NO_SENSE; | |
2115 | /* TODO How is LOW POWER CONDITION ON handled? (byte 2) */ | |
2116 | response[2] = SCSI_ASC_NO_SENSE; | |
2117 | response[3] = SCSI_ASCQ_CAUSE_NOT_REPORTABLE; | |
2118 | /* SDAT_OVFL = 0 | Additional Sense Length = 0 */ | |
2119 | } else { | |
2120 | /* Fixed Format Sense Data */ | |
2121 | response[0] = FIXED_SENSE_DATA; | |
2122 | /* Byte 1 = Obsolete */ | |
2123 | response[2] = NO_SENSE; /* FM, EOM, ILI, SDAT_OVFL = 0 */ | |
2124 | /* Bytes 3-6 - Information - set to zero */ | |
2125 | response[7] = FIXED_SENSE_DATA_ADD_LENGTH; | |
2126 | /* Bytes 8-11 - Cmd Specific Information - set to zero */ | |
2127 | response[12] = SCSI_ASC_NO_SENSE; | |
2128 | response[13] = SCSI_ASCQ_CAUSE_NOT_REPORTABLE; | |
2129 | /* Byte 14 = Field Replaceable Unit Code = 0 */ | |
2130 | /* Bytes 15-17 - SKSV=0; Sense Key Specific = 0 */ | |
2131 | } | |
2132 | ||
2133 | xfer_len = min(alloc_len, resp_size); | |
2134 | res = nvme_trans_copy_to_user(hdr, response, xfer_len); | |
2135 | ||
2136 | kfree(response); | |
2137 | out: | |
2138 | return res; | |
2139 | } | |
2140 | ||
d29ec824 CH |
2141 | static int nvme_trans_synchronize_cache(struct nvme_ns *ns, |
2142 | struct sg_io_hdr *hdr) | |
5d0f6131 | 2143 | { |
5d0f6131 | 2144 | int nvme_sc; |
14385de1 | 2145 | struct nvme_command c; |
5d0f6131 | 2146 | |
d29ec824 CH |
2147 | memset(&c, 0, sizeof(c)); |
2148 | c.common.opcode = nvme_cmd_flush; | |
2149 | c.common.nsid = cpu_to_le32(ns->ns_id); | |
5d0f6131 | 2150 | |
d29ec824 CH |
2151 | nvme_sc = nvme_submit_sync_cmd(ns->queue, &c, NULL, 0); |
2152 | return nvme_trans_status_code(hdr, nvme_sc); | |
2153 | } | |
2154 | ||
5d0f6131 VV |
2155 | static int nvme_trans_format_unit(struct nvme_ns *ns, struct sg_io_hdr *hdr, |
2156 | u8 *cmd) | |
2157 | { | |
e61b0a86 | 2158 | int res; |
5d0f6131 VV |
2159 | u8 parm_hdr_len = 0; |
2160 | u8 nvme_pf_code = 0; | |
2161 | u8 format_prot_info, long_list, format_data; | |
2162 | ||
3726897e CH |
2163 | format_prot_info = (cmd[1] & 0xc0) >> 6; |
2164 | long_list = cmd[1] & 0x20; | |
2165 | format_data = cmd[1] & 0x10; | |
5d0f6131 VV |
2166 | |
2167 | if (format_data != 0) { | |
2168 | if (format_prot_info != 0) { | |
2169 | if (long_list == 0) | |
2170 | parm_hdr_len = FORMAT_UNIT_SHORT_PARM_LIST_LEN; | |
2171 | else | |
2172 | parm_hdr_len = FORMAT_UNIT_LONG_PARM_LIST_LEN; | |
2173 | } | |
2174 | } else if (format_data == 0 && format_prot_info != 0) { | |
2175 | res = nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION, | |
2176 | ILLEGAL_REQUEST, SCSI_ASC_INVALID_CDB, | |
2177 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
2178 | goto out; | |
2179 | } | |
2180 | ||
2181 | /* Get parm header from data-in/out buffer */ | |
2182 | /* | |
2183 | * According to the translation spec, the only fields in the parameter | |
2184 | * list we are concerned with are in the header. So allocate only that. | |
2185 | */ | |
2186 | if (parm_hdr_len > 0) { | |
2187 | res = nvme_trans_fmt_get_parm_header(hdr, parm_hdr_len, | |
2188 | format_prot_info, &nvme_pf_code); | |
e61b0a86 | 2189 | if (res) |
5d0f6131 VV |
2190 | goto out; |
2191 | } | |
2192 | ||
2193 | /* Attempt to activate any previously downloaded firmware image */ | |
b90c48d0 | 2194 | res = nvme_trans_send_activate_fw_cmd(ns, hdr, 0); |
5d0f6131 VV |
2195 | |
2196 | /* Determine Block size and count and send format command */ | |
2197 | res = nvme_trans_fmt_set_blk_size_count(ns, hdr); | |
e61b0a86 | 2198 | if (res) |
5d0f6131 VV |
2199 | goto out; |
2200 | ||
2201 | res = nvme_trans_fmt_send_cmd(ns, hdr, nvme_pf_code); | |
2202 | ||
2203 | out: | |
2204 | return res; | |
2205 | } | |
2206 | ||
2207 | static int nvme_trans_test_unit_ready(struct nvme_ns *ns, | |
2208 | struct sg_io_hdr *hdr, | |
2209 | u8 *cmd) | |
2210 | { | |
1c63dc66 | 2211 | if (nvme_ctrl_ready(ns->ctrl)) |
e61b0a86 | 2212 | return nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION, |
5d0f6131 VV |
2213 | NOT_READY, SCSI_ASC_LUN_NOT_READY, |
2214 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
2215 | else | |
e61b0a86 | 2216 | return nvme_trans_completion(hdr, SAM_STAT_GOOD, NO_SENSE, 0, 0); |
5d0f6131 VV |
2217 | } |
2218 | ||
2219 | static int nvme_trans_write_buffer(struct nvme_ns *ns, struct sg_io_hdr *hdr, | |
2220 | u8 *cmd) | |
2221 | { | |
e61b0a86 | 2222 | int res = 0; |
5d0f6131 VV |
2223 | u32 buffer_offset, parm_list_length; |
2224 | u8 buffer_id, mode; | |
2225 | ||
3726897e | 2226 | parm_list_length = get_unaligned_be24(&cmd[6]); |
5d0f6131 VV |
2227 | if (parm_list_length % BYTES_TO_DWORDS != 0) { |
2228 | /* NVMe expects Firmware file to be a whole number of DWORDS */ | |
2229 | res = nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION, | |
2230 | ILLEGAL_REQUEST, SCSI_ASC_INVALID_CDB, | |
2231 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
2232 | goto out; | |
2233 | } | |
3726897e | 2234 | buffer_id = cmd[2]; |
5d0f6131 VV |
2235 | if (buffer_id > NVME_MAX_FIRMWARE_SLOT) { |
2236 | res = nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION, | |
2237 | ILLEGAL_REQUEST, SCSI_ASC_INVALID_CDB, | |
2238 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
2239 | goto out; | |
2240 | } | |
3726897e CH |
2241 | mode = cmd[1] & 0x1f; |
2242 | buffer_offset = get_unaligned_be24(&cmd[3]); | |
5d0f6131 VV |
2243 | |
2244 | switch (mode) { | |
2245 | case DOWNLOAD_SAVE_ACTIVATE: | |
b90c48d0 | 2246 | res = nvme_trans_send_download_fw_cmd(ns, hdr, nvme_admin_download_fw, |
5d0f6131 VV |
2247 | parm_list_length, buffer_offset, |
2248 | buffer_id); | |
e61b0a86 | 2249 | if (res) |
5d0f6131 | 2250 | goto out; |
b90c48d0 | 2251 | res = nvme_trans_send_activate_fw_cmd(ns, hdr, buffer_id); |
5d0f6131 VV |
2252 | break; |
2253 | case DOWNLOAD_SAVE_DEFER_ACTIVATE: | |
b90c48d0 | 2254 | res = nvme_trans_send_download_fw_cmd(ns, hdr, nvme_admin_download_fw, |
5d0f6131 VV |
2255 | parm_list_length, buffer_offset, |
2256 | buffer_id); | |
2257 | break; | |
2258 | case ACTIVATE_DEFERRED_MICROCODE: | |
b90c48d0 | 2259 | res = nvme_trans_send_activate_fw_cmd(ns, hdr, buffer_id); |
5d0f6131 VV |
2260 | break; |
2261 | default: | |
2262 | res = nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION, | |
2263 | ILLEGAL_REQUEST, SCSI_ASC_INVALID_CDB, | |
2264 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
2265 | break; | |
2266 | } | |
2267 | ||
2268 | out: | |
2269 | return res; | |
2270 | } | |
2271 | ||
ec503733 KB |
2272 | struct scsi_unmap_blk_desc { |
2273 | __be64 slba; | |
2274 | __be32 nlb; | |
2275 | u32 resv; | |
2276 | }; | |
2277 | ||
2278 | struct scsi_unmap_parm_list { | |
2279 | __be16 unmap_data_len; | |
2280 | __be16 unmap_blk_desc_data_len; | |
2281 | u32 resv; | |
2282 | struct scsi_unmap_blk_desc desc[0]; | |
2283 | }; | |
2284 | ||
2285 | static int nvme_trans_unmap(struct nvme_ns *ns, struct sg_io_hdr *hdr, | |
2286 | u8 *cmd) | |
2287 | { | |
ec503733 KB |
2288 | struct scsi_unmap_parm_list *plist; |
2289 | struct nvme_dsm_range *range; | |
ec503733 | 2290 | struct nvme_command c; |
51ef72bd | 2291 | int i, nvme_sc, res; |
ec503733 | 2292 | u16 ndesc, list_len; |
ec503733 | 2293 | |
3726897e | 2294 | list_len = get_unaligned_be16(&cmd[7]); |
ec503733 KB |
2295 | if (!list_len) |
2296 | return -EINVAL; | |
2297 | ||
2298 | plist = kmalloc(list_len, GFP_KERNEL); | |
2299 | if (!plist) | |
2300 | return -ENOMEM; | |
2301 | ||
2302 | res = nvme_trans_copy_from_user(hdr, plist, list_len); | |
e61b0a86 | 2303 | if (res) |
ec503733 KB |
2304 | goto out; |
2305 | ||
2306 | ndesc = be16_to_cpu(plist->unmap_blk_desc_data_len) >> 4; | |
2307 | if (!ndesc || ndesc > 256) { | |
2308 | res = -EINVAL; | |
2309 | goto out; | |
2310 | } | |
2311 | ||
d29ec824 | 2312 | range = kcalloc(ndesc, sizeof(*range), GFP_KERNEL); |
51ef72bd AL |
2313 | if (!range) { |
2314 | res = -ENOMEM; | |
ec503733 | 2315 | goto out; |
51ef72bd | 2316 | } |
ec503733 KB |
2317 | |
2318 | for (i = 0; i < ndesc; i++) { | |
2319 | range[i].nlb = cpu_to_le32(be32_to_cpu(plist->desc[i].nlb)); | |
2320 | range[i].slba = cpu_to_le64(be64_to_cpu(plist->desc[i].slba)); | |
2321 | range[i].cattr = 0; | |
2322 | } | |
2323 | ||
2324 | memset(&c, 0, sizeof(c)); | |
2325 | c.dsm.opcode = nvme_cmd_dsm; | |
2326 | c.dsm.nsid = cpu_to_le32(ns->ns_id); | |
ec503733 KB |
2327 | c.dsm.nr = cpu_to_le32(ndesc - 1); |
2328 | c.dsm.attributes = cpu_to_le32(NVME_DSMGMT_AD); | |
2329 | ||
d29ec824 CH |
2330 | nvme_sc = nvme_submit_sync_cmd(ns->queue, &c, range, |
2331 | ndesc * sizeof(*range)); | |
ec503733 KB |
2332 | res = nvme_trans_status_code(hdr, nvme_sc); |
2333 | ||
d29ec824 | 2334 | kfree(range); |
ec503733 KB |
2335 | out: |
2336 | kfree(plist); | |
2337 | return res; | |
2338 | } | |
2339 | ||
5d0f6131 VV |
2340 | static int nvme_scsi_translate(struct nvme_ns *ns, struct sg_io_hdr *hdr) |
2341 | { | |
1a7347c7 | 2342 | u8 cmd[16]; |
5d0f6131 VV |
2343 | int retcode; |
2344 | unsigned int opcode; | |
2345 | ||
2346 | if (hdr->cmdp == NULL) | |
2347 | return -EMSGSIZE; | |
1a7347c7 CH |
2348 | if (hdr->cmd_len > sizeof(cmd)) |
2349 | return -EINVAL; | |
5d0f6131 VV |
2350 | if (copy_from_user(cmd, hdr->cmdp, hdr->cmd_len)) |
2351 | return -EFAULT; | |
2352 | ||
695a4fe7 KB |
2353 | /* |
2354 | * Prime the hdr with good status for scsi commands that don't require | |
2355 | * an nvme command for translation. | |
2356 | */ | |
2357 | retcode = nvme_trans_status_code(hdr, NVME_SC_SUCCESS); | |
2358 | if (retcode) | |
2359 | return retcode; | |
2360 | ||
5d0f6131 VV |
2361 | opcode = cmd[0]; |
2362 | ||
2363 | switch (opcode) { | |
2364 | case READ_6: | |
2365 | case READ_10: | |
2366 | case READ_12: | |
2367 | case READ_16: | |
2368 | retcode = nvme_trans_io(ns, hdr, 0, cmd); | |
2369 | break; | |
2370 | case WRITE_6: | |
2371 | case WRITE_10: | |
2372 | case WRITE_12: | |
2373 | case WRITE_16: | |
2374 | retcode = nvme_trans_io(ns, hdr, 1, cmd); | |
2375 | break; | |
2376 | case INQUIRY: | |
2377 | retcode = nvme_trans_inquiry(ns, hdr, cmd); | |
2378 | break; | |
2379 | case LOG_SENSE: | |
2380 | retcode = nvme_trans_log_sense(ns, hdr, cmd); | |
2381 | break; | |
2382 | case MODE_SELECT: | |
2383 | case MODE_SELECT_10: | |
2384 | retcode = nvme_trans_mode_select(ns, hdr, cmd); | |
2385 | break; | |
2386 | case MODE_SENSE: | |
2387 | case MODE_SENSE_10: | |
2388 | retcode = nvme_trans_mode_sense(ns, hdr, cmd); | |
2389 | break; | |
2390 | case READ_CAPACITY: | |
3726897e | 2391 | retcode = nvme_trans_read_capacity(ns, hdr, cmd, 0); |
5d0f6131 | 2392 | break; |
eb846d9f | 2393 | case SERVICE_ACTION_IN_16: |
3726897e CH |
2394 | switch (cmd[1]) { |
2395 | case SAI_READ_CAPACITY_16: | |
2396 | retcode = nvme_trans_read_capacity(ns, hdr, cmd, 1); | |
2397 | break; | |
2398 | default: | |
5d0f6131 | 2399 | goto out; |
3726897e | 2400 | } |
5d0f6131 VV |
2401 | break; |
2402 | case REPORT_LUNS: | |
2403 | retcode = nvme_trans_report_luns(ns, hdr, cmd); | |
2404 | break; | |
2405 | case REQUEST_SENSE: | |
2406 | retcode = nvme_trans_request_sense(ns, hdr, cmd); | |
2407 | break; | |
5d0f6131 | 2408 | case SYNCHRONIZE_CACHE: |
d29ec824 | 2409 | retcode = nvme_trans_synchronize_cache(ns, hdr); |
5d0f6131 VV |
2410 | break; |
2411 | case FORMAT_UNIT: | |
2412 | retcode = nvme_trans_format_unit(ns, hdr, cmd); | |
2413 | break; | |
2414 | case TEST_UNIT_READY: | |
2415 | retcode = nvme_trans_test_unit_ready(ns, hdr, cmd); | |
2416 | break; | |
2417 | case WRITE_BUFFER: | |
2418 | retcode = nvme_trans_write_buffer(ns, hdr, cmd); | |
2419 | break; | |
ec503733 KB |
2420 | case UNMAP: |
2421 | retcode = nvme_trans_unmap(ns, hdr, cmd); | |
2422 | break; | |
5d0f6131 VV |
2423 | default: |
2424 | out: | |
2425 | retcode = nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION, | |
2426 | ILLEGAL_REQUEST, SCSI_ASC_ILLEGAL_COMMAND, | |
2427 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
2428 | break; | |
2429 | } | |
2430 | return retcode; | |
2431 | } | |
2432 | ||
2433 | int nvme_sg_io(struct nvme_ns *ns, struct sg_io_hdr __user *u_hdr) | |
2434 | { | |
2435 | struct sg_io_hdr hdr; | |
2436 | int retcode; | |
2437 | ||
2438 | if (!capable(CAP_SYS_ADMIN)) | |
2439 | return -EACCES; | |
2440 | if (copy_from_user(&hdr, u_hdr, sizeof(hdr))) | |
2441 | return -EFAULT; | |
2442 | if (hdr.interface_id != 'S') | |
2443 | return -EINVAL; | |
5d0f6131 | 2444 | |
e61b0a86 CH |
2445 | /* |
2446 | * A positive return code means a NVMe status, which has been | |
2447 | * translated to sense data. | |
2448 | */ | |
5d0f6131 VV |
2449 | retcode = nvme_scsi_translate(ns, &hdr); |
2450 | if (retcode < 0) | |
2451 | return retcode; | |
8741ee4c | 2452 | if (copy_to_user(u_hdr, &hdr, sizeof(sg_io_hdr_t)) > 0) |
5d0f6131 | 2453 | return -EFAULT; |
e61b0a86 | 2454 | return 0; |
5d0f6131 VV |
2455 | } |
2456 | ||
2457 | int nvme_sg_get_version_num(int __user *ip) | |
2458 | { | |
2459 | return put_user(sg_version_num, ip); | |
2460 | } |