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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 | ||
20 | #include <linux/nvme.h> | |
21 | #include <linux/bio.h> | |
22 | #include <linux/bitops.h> | |
23 | #include <linux/blkdev.h> | |
320a3827 | 24 | #include <linux/compat.h> |
5d0f6131 VV |
25 | #include <linux/delay.h> |
26 | #include <linux/errno.h> | |
27 | #include <linux/fs.h> | |
28 | #include <linux/genhd.h> | |
29 | #include <linux/idr.h> | |
30 | #include <linux/init.h> | |
31 | #include <linux/interrupt.h> | |
32 | #include <linux/io.h> | |
33 | #include <linux/kdev_t.h> | |
34 | #include <linux/kthread.h> | |
35 | #include <linux/kernel.h> | |
36 | #include <linux/mm.h> | |
37 | #include <linux/module.h> | |
38 | #include <linux/moduleparam.h> | |
39 | #include <linux/pci.h> | |
40 | #include <linux/poison.h> | |
41 | #include <linux/sched.h> | |
42 | #include <linux/slab.h> | |
43 | #include <linux/types.h> | |
3726897e | 44 | #include <asm/unaligned.h> |
5d0f6131 VV |
45 | #include <scsi/sg.h> |
46 | #include <scsi/scsi.h> | |
47 | ||
48 | ||
49 | static int sg_version_num = 30534; /* 2 digits for each component */ | |
50 | ||
5d0f6131 VV |
51 | /* VPD Page Codes */ |
52 | #define VPD_SUPPORTED_PAGES 0x00 | |
53 | #define VPD_SERIAL_NUMBER 0x80 | |
54 | #define VPD_DEVICE_IDENTIFIERS 0x83 | |
55 | #define VPD_EXTENDED_INQUIRY 0x86 | |
7f749d9c | 56 | #define VPD_BLOCK_LIMITS 0xB0 |
5d0f6131 VV |
57 | #define VPD_BLOCK_DEV_CHARACTERISTICS 0xB1 |
58 | ||
3726897e | 59 | /* format unit paramter list offsets */ |
5d0f6131 VV |
60 | #define FORMAT_UNIT_SHORT_PARM_LIST_LEN 4 |
61 | #define FORMAT_UNIT_LONG_PARM_LIST_LEN 8 | |
62 | #define FORMAT_UNIT_PROT_INT_OFFSET 3 | |
63 | #define FORMAT_UNIT_PROT_FIELD_USAGE_OFFSET 0 | |
64 | #define FORMAT_UNIT_PROT_FIELD_USAGE_MASK 0x07 | |
65 | ||
66 | /* Misc. defines */ | |
5d0f6131 VV |
67 | #define FIXED_SENSE_DATA 0x70 |
68 | #define DESC_FORMAT_SENSE_DATA 0x72 | |
69 | #define FIXED_SENSE_DATA_ADD_LENGTH 10 | |
70 | #define LUN_ENTRY_SIZE 8 | |
71 | #define LUN_DATA_HEADER_SIZE 8 | |
72 | #define ALL_LUNS_RETURNED 0x02 | |
73 | #define ALL_WELL_KNOWN_LUNS_RETURNED 0x01 | |
74 | #define RESTRICTED_LUNS_RETURNED 0x00 | |
75 | #define NVME_POWER_STATE_START_VALID 0x00 | |
76 | #define NVME_POWER_STATE_ACTIVE 0x01 | |
77 | #define NVME_POWER_STATE_IDLE 0x02 | |
78 | #define NVME_POWER_STATE_STANDBY 0x03 | |
79 | #define NVME_POWER_STATE_LU_CONTROL 0x07 | |
80 | #define POWER_STATE_0 0 | |
81 | #define POWER_STATE_1 1 | |
82 | #define POWER_STATE_2 2 | |
83 | #define POWER_STATE_3 3 | |
84 | #define DOWNLOAD_SAVE_ACTIVATE 0x05 | |
85 | #define DOWNLOAD_SAVE_DEFER_ACTIVATE 0x0E | |
86 | #define ACTIVATE_DEFERRED_MICROCODE 0x0F | |
87 | #define FORMAT_UNIT_IMMED_MASK 0x2 | |
88 | #define FORMAT_UNIT_IMMED_OFFSET 1 | |
89 | #define KELVIN_TEMP_FACTOR 273 | |
90 | #define FIXED_FMT_SENSE_DATA_SIZE 18 | |
91 | #define DESC_FMT_SENSE_DATA_SIZE 8 | |
92 | ||
93 | /* SCSI/NVMe defines and bit masks */ | |
94 | #define INQ_STANDARD_INQUIRY_PAGE 0x00 | |
95 | #define INQ_SUPPORTED_VPD_PAGES_PAGE 0x00 | |
96 | #define INQ_UNIT_SERIAL_NUMBER_PAGE 0x80 | |
97 | #define INQ_DEVICE_IDENTIFICATION_PAGE 0x83 | |
98 | #define INQ_EXTENDED_INQUIRY_DATA_PAGE 0x86 | |
7f749d9c | 99 | #define INQ_BDEV_LIMITS_PAGE 0xB0 |
5d0f6131 VV |
100 | #define INQ_BDEV_CHARACTERISTICS_PAGE 0xB1 |
101 | #define INQ_SERIAL_NUMBER_LENGTH 0x14 | |
7f749d9c | 102 | #define INQ_NUM_SUPPORTED_VPD_PAGES 6 |
5d0f6131 VV |
103 | #define VERSION_SPC_4 0x06 |
104 | #define ACA_UNSUPPORTED 0 | |
105 | #define STANDARD_INQUIRY_LENGTH 36 | |
106 | #define ADDITIONAL_STD_INQ_LENGTH 31 | |
107 | #define EXTENDED_INQUIRY_DATA_PAGE_LENGTH 0x3C | |
108 | #define RESERVED_FIELD 0 | |
109 | ||
5d0f6131 VV |
110 | /* Mode Sense/Select defines */ |
111 | #define MODE_PAGE_INFO_EXCEP 0x1C | |
112 | #define MODE_PAGE_CACHING 0x08 | |
113 | #define MODE_PAGE_CONTROL 0x0A | |
114 | #define MODE_PAGE_POWER_CONDITION 0x1A | |
115 | #define MODE_PAGE_RETURN_ALL 0x3F | |
116 | #define MODE_PAGE_BLK_DES_LEN 0x08 | |
117 | #define MODE_PAGE_LLBAA_BLK_DES_LEN 0x10 | |
118 | #define MODE_PAGE_CACHING_LEN 0x14 | |
119 | #define MODE_PAGE_CONTROL_LEN 0x0C | |
120 | #define MODE_PAGE_POW_CND_LEN 0x28 | |
121 | #define MODE_PAGE_INF_EXC_LEN 0x0C | |
122 | #define MODE_PAGE_ALL_LEN 0x54 | |
123 | #define MODE_SENSE6_MPH_SIZE 4 | |
5d0f6131 VV |
124 | #define MODE_SENSE_PAGE_CONTROL_MASK 0xC0 |
125 | #define MODE_SENSE_PAGE_CODE_OFFSET 2 | |
126 | #define MODE_SENSE_PAGE_CODE_MASK 0x3F | |
5d0f6131 VV |
127 | #define MODE_SENSE_LLBAA_MASK 0x10 |
128 | #define MODE_SENSE_LLBAA_SHIFT 4 | |
5d0f6131 VV |
129 | #define MODE_SENSE_DBD_MASK 8 |
130 | #define MODE_SENSE_DBD_SHIFT 3 | |
131 | #define MODE_SENSE10_MPH_SIZE 8 | |
5d0f6131 VV |
132 | #define MODE_SELECT_CDB_PAGE_FORMAT_MASK 0x10 |
133 | #define MODE_SELECT_CDB_SAVE_PAGES_MASK 0x1 | |
134 | #define MODE_SELECT_6_BD_OFFSET 3 | |
135 | #define MODE_SELECT_10_BD_OFFSET 6 | |
136 | #define MODE_SELECT_10_LLBAA_OFFSET 4 | |
137 | #define MODE_SELECT_10_LLBAA_MASK 1 | |
138 | #define MODE_SELECT_6_MPH_SIZE 4 | |
139 | #define MODE_SELECT_10_MPH_SIZE 8 | |
140 | #define CACHING_MODE_PAGE_WCE_MASK 0x04 | |
141 | #define MODE_SENSE_BLK_DESC_ENABLED 0 | |
142 | #define MODE_SENSE_BLK_DESC_COUNT 1 | |
143 | #define MODE_SELECT_PAGE_CODE_MASK 0x3F | |
144 | #define SHORT_DESC_BLOCK 8 | |
145 | #define LONG_DESC_BLOCK 16 | |
146 | #define MODE_PAGE_POW_CND_LEN_FIELD 0x26 | |
147 | #define MODE_PAGE_INF_EXC_LEN_FIELD 0x0A | |
148 | #define MODE_PAGE_CACHING_LEN_FIELD 0x12 | |
149 | #define MODE_PAGE_CONTROL_LEN_FIELD 0x0A | |
150 | #define MODE_SENSE_PC_CURRENT_VALUES 0 | |
151 | ||
152 | /* Log Sense defines */ | |
153 | #define LOG_PAGE_SUPPORTED_LOG_PAGES_PAGE 0x00 | |
154 | #define LOG_PAGE_SUPPORTED_LOG_PAGES_LENGTH 0x07 | |
155 | #define LOG_PAGE_INFORMATIONAL_EXCEPTIONS_PAGE 0x2F | |
156 | #define LOG_PAGE_TEMPERATURE_PAGE 0x0D | |
5d0f6131 | 157 | #define LOG_SENSE_CDB_SP_NOT_ENABLED 0 |
5d0f6131 VV |
158 | #define LOG_SENSE_CDB_PC_MASK 0xC0 |
159 | #define LOG_SENSE_CDB_PC_SHIFT 6 | |
160 | #define LOG_SENSE_CDB_PC_CUMULATIVE_VALUES 1 | |
161 | #define LOG_SENSE_CDB_PAGE_CODE_MASK 0x3F | |
5d0f6131 VV |
162 | #define REMAINING_INFO_EXCP_PAGE_LENGTH 0x8 |
163 | #define LOG_INFO_EXCP_PAGE_LENGTH 0xC | |
164 | #define REMAINING_TEMP_PAGE_LENGTH 0xC | |
165 | #define LOG_TEMP_PAGE_LENGTH 0x10 | |
166 | #define LOG_TEMP_UNKNOWN 0xFF | |
167 | #define SUPPORTED_LOG_PAGES_PAGE_LENGTH 0x3 | |
168 | ||
169 | /* Read Capacity defines */ | |
170 | #define READ_CAP_10_RESP_SIZE 8 | |
171 | #define READ_CAP_16_RESP_SIZE 32 | |
172 | ||
173 | /* NVMe Namespace and Command Defines */ | |
5d0f6131 VV |
174 | #define BYTES_TO_DWORDS 4 |
175 | #define NVME_MAX_FIRMWARE_SLOT 7 | |
176 | ||
177 | /* Report LUNs defines */ | |
178 | #define REPORT_LUNS_FIRST_LUN_OFFSET 8 | |
179 | ||
180 | /* SCSI ADDITIONAL SENSE Codes */ | |
181 | ||
182 | #define SCSI_ASC_NO_SENSE 0x00 | |
183 | #define SCSI_ASC_PERIPHERAL_DEV_WRITE_FAULT 0x03 | |
184 | #define SCSI_ASC_LUN_NOT_READY 0x04 | |
185 | #define SCSI_ASC_WARNING 0x0B | |
186 | #define SCSI_ASC_LOG_BLOCK_GUARD_CHECK_FAILED 0x10 | |
187 | #define SCSI_ASC_LOG_BLOCK_APPTAG_CHECK_FAILED 0x10 | |
188 | #define SCSI_ASC_LOG_BLOCK_REFTAG_CHECK_FAILED 0x10 | |
189 | #define SCSI_ASC_UNRECOVERED_READ_ERROR 0x11 | |
190 | #define SCSI_ASC_MISCOMPARE_DURING_VERIFY 0x1D | |
191 | #define SCSI_ASC_ACCESS_DENIED_INVALID_LUN_ID 0x20 | |
192 | #define SCSI_ASC_ILLEGAL_COMMAND 0x20 | |
193 | #define SCSI_ASC_ILLEGAL_BLOCK 0x21 | |
194 | #define SCSI_ASC_INVALID_CDB 0x24 | |
195 | #define SCSI_ASC_INVALID_LUN 0x25 | |
196 | #define SCSI_ASC_INVALID_PARAMETER 0x26 | |
197 | #define SCSI_ASC_FORMAT_COMMAND_FAILED 0x31 | |
198 | #define SCSI_ASC_INTERNAL_TARGET_FAILURE 0x44 | |
199 | ||
200 | /* SCSI ADDITIONAL SENSE Code Qualifiers */ | |
201 | ||
202 | #define SCSI_ASCQ_CAUSE_NOT_REPORTABLE 0x00 | |
203 | #define SCSI_ASCQ_FORMAT_COMMAND_FAILED 0x01 | |
204 | #define SCSI_ASCQ_LOG_BLOCK_GUARD_CHECK_FAILED 0x01 | |
205 | #define SCSI_ASCQ_LOG_BLOCK_APPTAG_CHECK_FAILED 0x02 | |
206 | #define SCSI_ASCQ_LOG_BLOCK_REFTAG_CHECK_FAILED 0x03 | |
207 | #define SCSI_ASCQ_FORMAT_IN_PROGRESS 0x04 | |
208 | #define SCSI_ASCQ_POWER_LOSS_EXPECTED 0x08 | |
209 | #define SCSI_ASCQ_INVALID_LUN_ID 0x09 | |
210 | ||
3726897e CH |
211 | /* copied from drivers/usb/gadget/function/storage_common.h */ |
212 | static inline u32 get_unaligned_be24(u8 *buf) | |
213 | { | |
214 | return 0xffffff & (u32) get_unaligned_be32(buf - 1); | |
215 | } | |
5d0f6131 VV |
216 | |
217 | /* Struct to gather data that needs to be extracted from a SCSI CDB. | |
218 | Not conforming to any particular CDB variant, but compatible with all. */ | |
219 | ||
220 | struct nvme_trans_io_cdb { | |
221 | u8 fua; | |
222 | u8 prot_info; | |
223 | u64 lba; | |
224 | u32 xfer_len; | |
225 | }; | |
226 | ||
227 | ||
228 | /* Internal Helper Functions */ | |
229 | ||
230 | ||
231 | /* Copy data to userspace memory */ | |
232 | ||
233 | static int nvme_trans_copy_to_user(struct sg_io_hdr *hdr, void *from, | |
234 | unsigned long n) | |
235 | { | |
5d0f6131 VV |
236 | int i; |
237 | void *index = from; | |
238 | size_t remaining = n; | |
239 | size_t xfer_len; | |
240 | ||
241 | if (hdr->iovec_count > 0) { | |
8741ee4c | 242 | struct sg_iovec sgl; |
5d0f6131 VV |
243 | |
244 | for (i = 0; i < hdr->iovec_count; i++) { | |
e61b0a86 | 245 | if (copy_from_user(&sgl, hdr->dxferp + |
8741ee4c | 246 | i * sizeof(struct sg_iovec), |
e61b0a86 | 247 | sizeof(struct sg_iovec))) |
8741ee4c VV |
248 | return -EFAULT; |
249 | xfer_len = min(remaining, sgl.iov_len); | |
e61b0a86 CH |
250 | if (copy_to_user(sgl.iov_base, index, xfer_len)) |
251 | return -EFAULT; | |
252 | ||
5d0f6131 VV |
253 | index += xfer_len; |
254 | remaining -= xfer_len; | |
255 | if (remaining == 0) | |
256 | break; | |
257 | } | |
e61b0a86 | 258 | return 0; |
5d0f6131 | 259 | } |
e61b0a86 CH |
260 | |
261 | if (copy_to_user(hdr->dxferp, from, n)) | |
262 | return -EFAULT; | |
263 | return 0; | |
5d0f6131 VV |
264 | } |
265 | ||
266 | /* Copy data from userspace memory */ | |
267 | ||
268 | static int nvme_trans_copy_from_user(struct sg_io_hdr *hdr, void *to, | |
269 | unsigned long n) | |
270 | { | |
5d0f6131 VV |
271 | int i; |
272 | void *index = to; | |
273 | size_t remaining = n; | |
274 | size_t xfer_len; | |
275 | ||
276 | if (hdr->iovec_count > 0) { | |
8741ee4c | 277 | struct sg_iovec sgl; |
5d0f6131 VV |
278 | |
279 | for (i = 0; i < hdr->iovec_count; i++) { | |
e61b0a86 | 280 | if (copy_from_user(&sgl, hdr->dxferp + |
8741ee4c | 281 | i * sizeof(struct sg_iovec), |
e61b0a86 | 282 | sizeof(struct sg_iovec))) |
8741ee4c VV |
283 | return -EFAULT; |
284 | xfer_len = min(remaining, sgl.iov_len); | |
e61b0a86 CH |
285 | if (copy_from_user(index, sgl.iov_base, xfer_len)) |
286 | return -EFAULT; | |
5d0f6131 VV |
287 | index += xfer_len; |
288 | remaining -= xfer_len; | |
289 | if (remaining == 0) | |
290 | break; | |
291 | } | |
e61b0a86 | 292 | return 0; |
5d0f6131 VV |
293 | } |
294 | ||
e61b0a86 CH |
295 | if (copy_from_user(to, hdr->dxferp, n)) |
296 | return -EFAULT; | |
297 | return 0; | |
5d0f6131 VV |
298 | } |
299 | ||
300 | /* Status/Sense Buffer Writeback */ | |
301 | ||
302 | static int nvme_trans_completion(struct sg_io_hdr *hdr, u8 status, u8 sense_key, | |
303 | u8 asc, u8 ascq) | |
304 | { | |
5d0f6131 VV |
305 | u8 xfer_len; |
306 | u8 resp[DESC_FMT_SENSE_DATA_SIZE]; | |
307 | ||
308 | if (scsi_status_is_good(status)) { | |
309 | hdr->status = SAM_STAT_GOOD; | |
310 | hdr->masked_status = GOOD; | |
311 | hdr->host_status = DID_OK; | |
312 | hdr->driver_status = DRIVER_OK; | |
313 | hdr->sb_len_wr = 0; | |
314 | } else { | |
315 | hdr->status = status; | |
316 | hdr->masked_status = status >> 1; | |
317 | hdr->host_status = DID_OK; | |
318 | hdr->driver_status = DRIVER_OK; | |
319 | ||
320 | memset(resp, 0, DESC_FMT_SENSE_DATA_SIZE); | |
321 | resp[0] = DESC_FORMAT_SENSE_DATA; | |
322 | resp[1] = sense_key; | |
323 | resp[2] = asc; | |
324 | resp[3] = ascq; | |
325 | ||
326 | xfer_len = min_t(u8, hdr->mx_sb_len, DESC_FMT_SENSE_DATA_SIZE); | |
327 | hdr->sb_len_wr = xfer_len; | |
8741ee4c | 328 | if (copy_to_user(hdr->sbp, resp, xfer_len) > 0) |
e61b0a86 | 329 | return -EFAULT; |
5d0f6131 VV |
330 | } |
331 | ||
e61b0a86 | 332 | return 0; |
5d0f6131 VV |
333 | } |
334 | ||
e61b0a86 CH |
335 | /* |
336 | * Take a status code from a lowlevel routine, and if it was a positive NVMe | |
337 | * error code update the sense data based on it. In either case the passed | |
338 | * in value is returned again, unless an -EFAULT from copy_to_user overrides | |
339 | * it. | |
340 | */ | |
5d0f6131 VV |
341 | static int nvme_trans_status_code(struct sg_io_hdr *hdr, int nvme_sc) |
342 | { | |
343 | u8 status, sense_key, asc, ascq; | |
e61b0a86 | 344 | int res; |
5d0f6131 VV |
345 | |
346 | /* For non-nvme (Linux) errors, simply return the error code */ | |
347 | if (nvme_sc < 0) | |
348 | return nvme_sc; | |
349 | ||
350 | /* Mask DNR, More, and reserved fields */ | |
e61b0a86 | 351 | switch (nvme_sc & 0x7FF) { |
5d0f6131 VV |
352 | /* Generic Command Status */ |
353 | case NVME_SC_SUCCESS: | |
354 | status = SAM_STAT_GOOD; | |
355 | sense_key = NO_SENSE; | |
356 | asc = SCSI_ASC_NO_SENSE; | |
357 | ascq = SCSI_ASCQ_CAUSE_NOT_REPORTABLE; | |
358 | break; | |
359 | case NVME_SC_INVALID_OPCODE: | |
360 | status = SAM_STAT_CHECK_CONDITION; | |
361 | sense_key = ILLEGAL_REQUEST; | |
362 | asc = SCSI_ASC_ILLEGAL_COMMAND; | |
363 | ascq = SCSI_ASCQ_CAUSE_NOT_REPORTABLE; | |
364 | break; | |
365 | case NVME_SC_INVALID_FIELD: | |
366 | status = SAM_STAT_CHECK_CONDITION; | |
367 | sense_key = ILLEGAL_REQUEST; | |
368 | asc = SCSI_ASC_INVALID_CDB; | |
369 | ascq = SCSI_ASCQ_CAUSE_NOT_REPORTABLE; | |
370 | break; | |
371 | case NVME_SC_DATA_XFER_ERROR: | |
372 | status = SAM_STAT_CHECK_CONDITION; | |
373 | sense_key = MEDIUM_ERROR; | |
374 | asc = SCSI_ASC_NO_SENSE; | |
375 | ascq = SCSI_ASCQ_CAUSE_NOT_REPORTABLE; | |
376 | break; | |
377 | case NVME_SC_POWER_LOSS: | |
378 | status = SAM_STAT_TASK_ABORTED; | |
379 | sense_key = ABORTED_COMMAND; | |
380 | asc = SCSI_ASC_WARNING; | |
381 | ascq = SCSI_ASCQ_POWER_LOSS_EXPECTED; | |
382 | break; | |
383 | case NVME_SC_INTERNAL: | |
384 | status = SAM_STAT_CHECK_CONDITION; | |
385 | sense_key = HARDWARE_ERROR; | |
386 | asc = SCSI_ASC_INTERNAL_TARGET_FAILURE; | |
387 | ascq = SCSI_ASCQ_CAUSE_NOT_REPORTABLE; | |
388 | break; | |
389 | case NVME_SC_ABORT_REQ: | |
390 | status = SAM_STAT_TASK_ABORTED; | |
391 | sense_key = ABORTED_COMMAND; | |
392 | asc = SCSI_ASC_NO_SENSE; | |
393 | ascq = SCSI_ASCQ_CAUSE_NOT_REPORTABLE; | |
394 | break; | |
395 | case NVME_SC_ABORT_QUEUE: | |
396 | status = SAM_STAT_TASK_ABORTED; | |
397 | sense_key = ABORTED_COMMAND; | |
398 | asc = SCSI_ASC_NO_SENSE; | |
399 | ascq = SCSI_ASCQ_CAUSE_NOT_REPORTABLE; | |
400 | break; | |
401 | case NVME_SC_FUSED_FAIL: | |
402 | status = SAM_STAT_TASK_ABORTED; | |
403 | sense_key = ABORTED_COMMAND; | |
404 | asc = SCSI_ASC_NO_SENSE; | |
405 | ascq = SCSI_ASCQ_CAUSE_NOT_REPORTABLE; | |
406 | break; | |
407 | case NVME_SC_FUSED_MISSING: | |
408 | status = SAM_STAT_TASK_ABORTED; | |
409 | sense_key = ABORTED_COMMAND; | |
410 | asc = SCSI_ASC_NO_SENSE; | |
411 | ascq = SCSI_ASCQ_CAUSE_NOT_REPORTABLE; | |
412 | break; | |
413 | case NVME_SC_INVALID_NS: | |
414 | status = SAM_STAT_CHECK_CONDITION; | |
415 | sense_key = ILLEGAL_REQUEST; | |
416 | asc = SCSI_ASC_ACCESS_DENIED_INVALID_LUN_ID; | |
417 | ascq = SCSI_ASCQ_INVALID_LUN_ID; | |
418 | break; | |
419 | case NVME_SC_LBA_RANGE: | |
420 | status = SAM_STAT_CHECK_CONDITION; | |
421 | sense_key = ILLEGAL_REQUEST; | |
422 | asc = SCSI_ASC_ILLEGAL_BLOCK; | |
423 | ascq = SCSI_ASCQ_CAUSE_NOT_REPORTABLE; | |
424 | break; | |
425 | case NVME_SC_CAP_EXCEEDED: | |
426 | status = SAM_STAT_CHECK_CONDITION; | |
427 | sense_key = MEDIUM_ERROR; | |
428 | asc = SCSI_ASC_NO_SENSE; | |
429 | ascq = SCSI_ASCQ_CAUSE_NOT_REPORTABLE; | |
430 | break; | |
431 | case NVME_SC_NS_NOT_READY: | |
432 | status = SAM_STAT_CHECK_CONDITION; | |
433 | sense_key = NOT_READY; | |
434 | asc = SCSI_ASC_LUN_NOT_READY; | |
435 | ascq = SCSI_ASCQ_CAUSE_NOT_REPORTABLE; | |
436 | break; | |
437 | ||
438 | /* Command Specific Status */ | |
439 | case NVME_SC_INVALID_FORMAT: | |
440 | status = SAM_STAT_CHECK_CONDITION; | |
441 | sense_key = ILLEGAL_REQUEST; | |
442 | asc = SCSI_ASC_FORMAT_COMMAND_FAILED; | |
443 | ascq = SCSI_ASCQ_FORMAT_COMMAND_FAILED; | |
444 | break; | |
445 | case NVME_SC_BAD_ATTRIBUTES: | |
446 | status = SAM_STAT_CHECK_CONDITION; | |
447 | sense_key = ILLEGAL_REQUEST; | |
448 | asc = SCSI_ASC_INVALID_CDB; | |
449 | ascq = SCSI_ASCQ_CAUSE_NOT_REPORTABLE; | |
450 | break; | |
451 | ||
452 | /* Media Errors */ | |
453 | case NVME_SC_WRITE_FAULT: | |
454 | status = SAM_STAT_CHECK_CONDITION; | |
455 | sense_key = MEDIUM_ERROR; | |
456 | asc = SCSI_ASC_PERIPHERAL_DEV_WRITE_FAULT; | |
457 | ascq = SCSI_ASCQ_CAUSE_NOT_REPORTABLE; | |
458 | break; | |
459 | case NVME_SC_READ_ERROR: | |
460 | status = SAM_STAT_CHECK_CONDITION; | |
461 | sense_key = MEDIUM_ERROR; | |
462 | asc = SCSI_ASC_UNRECOVERED_READ_ERROR; | |
463 | ascq = SCSI_ASCQ_CAUSE_NOT_REPORTABLE; | |
464 | break; | |
465 | case NVME_SC_GUARD_CHECK: | |
466 | status = SAM_STAT_CHECK_CONDITION; | |
467 | sense_key = MEDIUM_ERROR; | |
468 | asc = SCSI_ASC_LOG_BLOCK_GUARD_CHECK_FAILED; | |
469 | ascq = SCSI_ASCQ_LOG_BLOCK_GUARD_CHECK_FAILED; | |
470 | break; | |
471 | case NVME_SC_APPTAG_CHECK: | |
472 | status = SAM_STAT_CHECK_CONDITION; | |
473 | sense_key = MEDIUM_ERROR; | |
474 | asc = SCSI_ASC_LOG_BLOCK_APPTAG_CHECK_FAILED; | |
475 | ascq = SCSI_ASCQ_LOG_BLOCK_APPTAG_CHECK_FAILED; | |
476 | break; | |
477 | case NVME_SC_REFTAG_CHECK: | |
478 | status = SAM_STAT_CHECK_CONDITION; | |
479 | sense_key = MEDIUM_ERROR; | |
480 | asc = SCSI_ASC_LOG_BLOCK_REFTAG_CHECK_FAILED; | |
481 | ascq = SCSI_ASCQ_LOG_BLOCK_REFTAG_CHECK_FAILED; | |
482 | break; | |
483 | case NVME_SC_COMPARE_FAILED: | |
484 | status = SAM_STAT_CHECK_CONDITION; | |
485 | sense_key = MISCOMPARE; | |
486 | asc = SCSI_ASC_MISCOMPARE_DURING_VERIFY; | |
487 | ascq = SCSI_ASCQ_CAUSE_NOT_REPORTABLE; | |
488 | break; | |
489 | case NVME_SC_ACCESS_DENIED: | |
490 | status = SAM_STAT_CHECK_CONDITION; | |
491 | sense_key = ILLEGAL_REQUEST; | |
492 | asc = SCSI_ASC_ACCESS_DENIED_INVALID_LUN_ID; | |
493 | ascq = SCSI_ASCQ_INVALID_LUN_ID; | |
494 | break; | |
495 | ||
496 | /* Unspecified/Default */ | |
497 | case NVME_SC_CMDID_CONFLICT: | |
498 | case NVME_SC_CMD_SEQ_ERROR: | |
499 | case NVME_SC_CQ_INVALID: | |
500 | case NVME_SC_QID_INVALID: | |
501 | case NVME_SC_QUEUE_SIZE: | |
502 | case NVME_SC_ABORT_LIMIT: | |
503 | case NVME_SC_ABORT_MISSING: | |
504 | case NVME_SC_ASYNC_LIMIT: | |
505 | case NVME_SC_FIRMWARE_SLOT: | |
506 | case NVME_SC_FIRMWARE_IMAGE: | |
507 | case NVME_SC_INVALID_VECTOR: | |
508 | case NVME_SC_INVALID_LOG_PAGE: | |
509 | default: | |
510 | status = SAM_STAT_CHECK_CONDITION; | |
511 | sense_key = ILLEGAL_REQUEST; | |
512 | asc = SCSI_ASC_NO_SENSE; | |
513 | ascq = SCSI_ASCQ_CAUSE_NOT_REPORTABLE; | |
514 | break; | |
515 | } | |
516 | ||
517 | res = nvme_trans_completion(hdr, status, sense_key, asc, ascq); | |
e61b0a86 | 518 | return res ? res : nvme_sc; |
5d0f6131 VV |
519 | } |
520 | ||
521 | /* INQUIRY Helper Functions */ | |
522 | ||
523 | static int nvme_trans_standard_inquiry_page(struct nvme_ns *ns, | |
524 | struct sg_io_hdr *hdr, u8 *inq_response, | |
525 | int alloc_len) | |
526 | { | |
527 | struct nvme_dev *dev = ns->dev; | |
528 | dma_addr_t dma_addr; | |
529 | void *mem; | |
530 | struct nvme_id_ns *id_ns; | |
e61b0a86 | 531 | int res; |
5d0f6131 VV |
532 | int nvme_sc; |
533 | int xfer_len; | |
534 | u8 resp_data_format = 0x02; | |
535 | u8 protect; | |
536 | u8 cmdque = 0x01 << 1; | |
dedf4b15 | 537 | u8 fw_offset = sizeof(dev->firmware_rev); |
5d0f6131 | 538 | |
e75ec752 | 539 | mem = dma_alloc_coherent(dev->dev, sizeof(struct nvme_id_ns), |
5d0f6131 VV |
540 | &dma_addr, GFP_KERNEL); |
541 | if (mem == NULL) { | |
542 | res = -ENOMEM; | |
543 | goto out_dma; | |
544 | } | |
545 | ||
546 | /* nvme ns identify - use DPS value for PROTECT field */ | |
547 | nvme_sc = nvme_identify(dev, ns->ns_id, 0, dma_addr); | |
548 | res = nvme_trans_status_code(hdr, nvme_sc); | |
5d0f6131 VV |
549 | if (res) |
550 | goto out_free; | |
e61b0a86 | 551 | |
5d0f6131 VV |
552 | id_ns = mem; |
553 | (id_ns->dps) ? (protect = 0x01) : (protect = 0); | |
554 | ||
555 | memset(inq_response, 0, STANDARD_INQUIRY_LENGTH); | |
556 | inq_response[2] = VERSION_SPC_4; | |
557 | inq_response[3] = resp_data_format; /*normaca=0 | hisup=0 */ | |
558 | inq_response[4] = ADDITIONAL_STD_INQ_LENGTH; | |
559 | inq_response[5] = protect; /* sccs=0 | acc=0 | tpgs=0 | pc3=0 */ | |
560 | inq_response[7] = cmdque; /* wbus16=0 | sync=0 | vs=0 */ | |
561 | strncpy(&inq_response[8], "NVMe ", 8); | |
562 | strncpy(&inq_response[16], dev->model, 16); | |
dedf4b15 KB |
563 | |
564 | while (dev->firmware_rev[fw_offset - 1] == ' ' && fw_offset > 4) | |
565 | fw_offset--; | |
566 | fw_offset -= 4; | |
567 | strncpy(&inq_response[32], dev->firmware_rev + fw_offset, 4); | |
5d0f6131 VV |
568 | |
569 | xfer_len = min(alloc_len, STANDARD_INQUIRY_LENGTH); | |
570 | res = nvme_trans_copy_to_user(hdr, inq_response, xfer_len); | |
571 | ||
572 | out_free: | |
e75ec752 | 573 | dma_free_coherent(dev->dev, sizeof(struct nvme_id_ns), mem, dma_addr); |
5d0f6131 VV |
574 | out_dma: |
575 | return res; | |
576 | } | |
577 | ||
578 | static int nvme_trans_supported_vpd_pages(struct nvme_ns *ns, | |
579 | struct sg_io_hdr *hdr, u8 *inq_response, | |
580 | int alloc_len) | |
581 | { | |
5d0f6131 VV |
582 | int xfer_len; |
583 | ||
584 | memset(inq_response, 0, STANDARD_INQUIRY_LENGTH); | |
585 | inq_response[1] = INQ_SUPPORTED_VPD_PAGES_PAGE; /* Page Code */ | |
586 | inq_response[3] = INQ_NUM_SUPPORTED_VPD_PAGES; /* Page Length */ | |
587 | inq_response[4] = INQ_SUPPORTED_VPD_PAGES_PAGE; | |
588 | inq_response[5] = INQ_UNIT_SERIAL_NUMBER_PAGE; | |
589 | inq_response[6] = INQ_DEVICE_IDENTIFICATION_PAGE; | |
590 | inq_response[7] = INQ_EXTENDED_INQUIRY_DATA_PAGE; | |
591 | inq_response[8] = INQ_BDEV_CHARACTERISTICS_PAGE; | |
7f749d9c | 592 | inq_response[9] = INQ_BDEV_LIMITS_PAGE; |
5d0f6131 VV |
593 | |
594 | xfer_len = min(alloc_len, STANDARD_INQUIRY_LENGTH); | |
e61b0a86 | 595 | return nvme_trans_copy_to_user(hdr, inq_response, xfer_len); |
5d0f6131 VV |
596 | } |
597 | ||
598 | static int nvme_trans_unit_serial_page(struct nvme_ns *ns, | |
599 | struct sg_io_hdr *hdr, u8 *inq_response, | |
600 | int alloc_len) | |
601 | { | |
602 | struct nvme_dev *dev = ns->dev; | |
5d0f6131 VV |
603 | int xfer_len; |
604 | ||
605 | memset(inq_response, 0, STANDARD_INQUIRY_LENGTH); | |
606 | inq_response[1] = INQ_UNIT_SERIAL_NUMBER_PAGE; /* Page Code */ | |
607 | inq_response[3] = INQ_SERIAL_NUMBER_LENGTH; /* Page Length */ | |
608 | strncpy(&inq_response[4], dev->serial, INQ_SERIAL_NUMBER_LENGTH); | |
609 | ||
610 | xfer_len = min(alloc_len, STANDARD_INQUIRY_LENGTH); | |
e61b0a86 | 611 | return nvme_trans_copy_to_user(hdr, inq_response, xfer_len); |
5d0f6131 VV |
612 | } |
613 | ||
614 | static int nvme_trans_device_id_page(struct nvme_ns *ns, struct sg_io_hdr *hdr, | |
615 | u8 *inq_response, int alloc_len) | |
616 | { | |
617 | struct nvme_dev *dev = ns->dev; | |
618 | dma_addr_t dma_addr; | |
619 | void *mem; | |
e61b0a86 | 620 | int res; |
5d0f6131 | 621 | int nvme_sc; |
5d0f6131 | 622 | int xfer_len; |
8741ee4c | 623 | __be32 tmp_id = cpu_to_be32(ns->ns_id); |
5d0f6131 | 624 | |
e75ec752 | 625 | mem = dma_alloc_coherent(dev->dev, sizeof(struct nvme_id_ns), |
5d0f6131 VV |
626 | &dma_addr, GFP_KERNEL); |
627 | if (mem == NULL) { | |
628 | res = -ENOMEM; | |
629 | goto out_dma; | |
630 | } | |
631 | ||
4f1982b4 | 632 | memset(inq_response, 0, alloc_len); |
5d0f6131 | 633 | inq_response[1] = INQ_DEVICE_IDENTIFICATION_PAGE; /* Page Code */ |
4f1982b4 KB |
634 | if (readl(&dev->bar->vs) >= NVME_VS(1, 1)) { |
635 | struct nvme_id_ns *id_ns = mem; | |
636 | void *eui = id_ns->eui64; | |
637 | int len = sizeof(id_ns->eui64); | |
5d0f6131 | 638 | |
4f1982b4 KB |
639 | nvme_sc = nvme_identify(dev, ns->ns_id, 0, dma_addr); |
640 | res = nvme_trans_status_code(hdr, nvme_sc); | |
641 | if (res) | |
642 | goto out_free; | |
4f1982b4 KB |
643 | |
644 | if (readl(&dev->bar->vs) >= NVME_VS(1, 2)) { | |
645 | if (bitmap_empty(eui, len * 8)) { | |
646 | eui = id_ns->nguid; | |
647 | len = sizeof(id_ns->nguid); | |
648 | } | |
649 | } | |
650 | if (bitmap_empty(eui, len * 8)) | |
651 | goto scsi_string; | |
652 | ||
653 | inq_response[3] = 4 + len; /* Page Length */ | |
654 | /* Designation Descriptor start */ | |
655 | inq_response[4] = 0x01; /* Proto ID=0h | Code set=1h */ | |
656 | inq_response[5] = 0x02; /* PIV=0b | Asso=00b | Designator Type=2h */ | |
657 | inq_response[6] = 0x00; /* Rsvd */ | |
658 | inq_response[7] = len; /* Designator Length */ | |
659 | memcpy(&inq_response[8], eui, len); | |
660 | } else { | |
661 | scsi_string: | |
662 | if (alloc_len < 72) { | |
663 | res = nvme_trans_completion(hdr, | |
664 | SAM_STAT_CHECK_CONDITION, | |
665 | ILLEGAL_REQUEST, SCSI_ASC_INVALID_CDB, | |
666 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
667 | goto out_free; | |
668 | } | |
669 | inq_response[3] = 0x48; /* Page Length */ | |
670 | /* Designation Descriptor start */ | |
671 | inq_response[4] = 0x03; /* Proto ID=0h | Code set=3h */ | |
672 | inq_response[5] = 0x08; /* PIV=0b | Asso=00b | Designator Type=8h */ | |
673 | inq_response[6] = 0x00; /* Rsvd */ | |
674 | inq_response[7] = 0x44; /* Designator Length */ | |
675 | ||
e75ec752 | 676 | sprintf(&inq_response[8], "%04x", to_pci_dev(dev->dev)->vendor); |
4f1982b4 KB |
677 | memcpy(&inq_response[12], dev->model, sizeof(dev->model)); |
678 | sprintf(&inq_response[52], "%04x", tmp_id); | |
679 | memcpy(&inq_response[56], dev->serial, sizeof(dev->serial)); | |
680 | } | |
681 | xfer_len = alloc_len; | |
5d0f6131 VV |
682 | res = nvme_trans_copy_to_user(hdr, inq_response, xfer_len); |
683 | ||
684 | out_free: | |
e75ec752 | 685 | dma_free_coherent(dev->dev, sizeof(struct nvme_id_ns), mem, dma_addr); |
5d0f6131 VV |
686 | out_dma: |
687 | return res; | |
688 | } | |
689 | ||
690 | static int nvme_trans_ext_inq_page(struct nvme_ns *ns, struct sg_io_hdr *hdr, | |
691 | int alloc_len) | |
692 | { | |
693 | u8 *inq_response; | |
e61b0a86 | 694 | int res; |
5d0f6131 VV |
695 | int nvme_sc; |
696 | struct nvme_dev *dev = ns->dev; | |
697 | dma_addr_t dma_addr; | |
698 | void *mem; | |
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); | |
711 | if (inq_response == NULL) { | |
712 | res = -ENOMEM; | |
713 | goto out_mem; | |
714 | } | |
715 | ||
e75ec752 | 716 | mem = dma_alloc_coherent(dev->dev, sizeof(struct nvme_id_ns), |
5d0f6131 VV |
717 | &dma_addr, GFP_KERNEL); |
718 | if (mem == NULL) { | |
719 | res = -ENOMEM; | |
720 | goto out_dma; | |
721 | } | |
722 | ||
723 | /* nvme ns identify */ | |
724 | nvme_sc = nvme_identify(dev, ns->ns_id, 0, dma_addr); | |
725 | res = nvme_trans_status_code(hdr, nvme_sc); | |
726 | if (res) | |
727 | goto out_free; | |
e61b0a86 | 728 | |
5d0f6131 VV |
729 | id_ns = mem; |
730 | spt = spt_lut[(id_ns->dpc) & 0x07] << 3; | |
731 | (id_ns->dps) ? (protect = 0x01) : (protect = 0); | |
732 | grd_chk = protect << 2; | |
733 | app_chk = protect << 1; | |
734 | ref_chk = protect; | |
735 | ||
736 | /* nvme controller identify */ | |
737 | nvme_sc = nvme_identify(dev, 0, 1, dma_addr); | |
738 | res = nvme_trans_status_code(hdr, nvme_sc); | |
739 | if (res) | |
740 | goto out_free; | |
e61b0a86 | 741 | |
5d0f6131 VV |
742 | id_ctrl = mem; |
743 | v_sup = id_ctrl->vwc; | |
744 | ||
745 | memset(inq_response, 0, EXTENDED_INQUIRY_DATA_PAGE_LENGTH); | |
746 | inq_response[1] = INQ_EXTENDED_INQUIRY_DATA_PAGE; /* Page Code */ | |
747 | inq_response[2] = 0x00; /* Page Length MSB */ | |
748 | inq_response[3] = 0x3C; /* Page Length LSB */ | |
749 | inq_response[4] = microcode | spt | grd_chk | app_chk | ref_chk; | |
750 | inq_response[5] = uask_sup; | |
751 | inq_response[6] = v_sup; | |
752 | inq_response[7] = luiclr; | |
753 | inq_response[8] = 0; | |
754 | inq_response[9] = 0; | |
755 | ||
756 | xfer_len = min(alloc_len, EXTENDED_INQUIRY_DATA_PAGE_LENGTH); | |
757 | res = nvme_trans_copy_to_user(hdr, inq_response, xfer_len); | |
758 | ||
759 | out_free: | |
e75ec752 | 760 | dma_free_coherent(dev->dev, sizeof(struct nvme_id_ns), mem, dma_addr); |
5d0f6131 VV |
761 | out_dma: |
762 | kfree(inq_response); | |
763 | out_mem: | |
764 | return res; | |
765 | } | |
766 | ||
7f749d9c KB |
767 | static int nvme_trans_bdev_limits_page(struct nvme_ns *ns, struct sg_io_hdr *hdr, |
768 | u8 *inq_response, int alloc_len) | |
769 | { | |
770 | __be32 max_sectors = cpu_to_be32(queue_max_hw_sectors(ns->queue)); | |
771 | __be32 max_discard = cpu_to_be32(ns->queue->limits.max_discard_sectors); | |
772 | __be32 discard_desc_count = cpu_to_be32(0x100); | |
773 | ||
774 | memset(inq_response, 0, STANDARD_INQUIRY_LENGTH); | |
775 | inq_response[1] = VPD_BLOCK_LIMITS; | |
776 | inq_response[3] = 0x3c; /* Page Length */ | |
777 | memcpy(&inq_response[8], &max_sectors, sizeof(u32)); | |
778 | memcpy(&inq_response[20], &max_discard, sizeof(u32)); | |
779 | ||
780 | if (max_discard) | |
781 | memcpy(&inq_response[24], &discard_desc_count, sizeof(u32)); | |
782 | ||
783 | return nvme_trans_copy_to_user(hdr, inq_response, 0x3c); | |
784 | } | |
785 | ||
5d0f6131 VV |
786 | static int nvme_trans_bdev_char_page(struct nvme_ns *ns, struct sg_io_hdr *hdr, |
787 | int alloc_len) | |
788 | { | |
789 | u8 *inq_response; | |
e61b0a86 | 790 | int res; |
5d0f6131 VV |
791 | int xfer_len; |
792 | ||
03ea83e9 | 793 | inq_response = kzalloc(EXTENDED_INQUIRY_DATA_PAGE_LENGTH, GFP_KERNEL); |
5d0f6131 VV |
794 | if (inq_response == NULL) { |
795 | res = -ENOMEM; | |
796 | goto out_mem; | |
797 | } | |
798 | ||
5d0f6131 VV |
799 | inq_response[1] = INQ_BDEV_CHARACTERISTICS_PAGE; /* Page Code */ |
800 | inq_response[2] = 0x00; /* Page Length MSB */ | |
801 | inq_response[3] = 0x3C; /* Page Length LSB */ | |
802 | inq_response[4] = 0x00; /* Medium Rotation Rate MSB */ | |
803 | inq_response[5] = 0x01; /* Medium Rotation Rate LSB */ | |
804 | inq_response[6] = 0x00; /* Form Factor */ | |
805 | ||
806 | xfer_len = min(alloc_len, EXTENDED_INQUIRY_DATA_PAGE_LENGTH); | |
807 | res = nvme_trans_copy_to_user(hdr, inq_response, xfer_len); | |
808 | ||
809 | kfree(inq_response); | |
810 | out_mem: | |
811 | return res; | |
812 | } | |
813 | ||
814 | /* LOG SENSE Helper Functions */ | |
815 | ||
816 | static int nvme_trans_log_supp_pages(struct nvme_ns *ns, struct sg_io_hdr *hdr, | |
817 | int alloc_len) | |
818 | { | |
e61b0a86 | 819 | int res; |
5d0f6131 VV |
820 | int xfer_len; |
821 | u8 *log_response; | |
822 | ||
03ea83e9 | 823 | log_response = kzalloc(LOG_PAGE_SUPPORTED_LOG_PAGES_LENGTH, GFP_KERNEL); |
5d0f6131 VV |
824 | if (log_response == NULL) { |
825 | res = -ENOMEM; | |
826 | goto out_mem; | |
827 | } | |
5d0f6131 VV |
828 | |
829 | log_response[0] = LOG_PAGE_SUPPORTED_LOG_PAGES_PAGE; | |
830 | /* Subpage=0x00, Page Length MSB=0 */ | |
831 | log_response[3] = SUPPORTED_LOG_PAGES_PAGE_LENGTH; | |
832 | log_response[4] = LOG_PAGE_SUPPORTED_LOG_PAGES_PAGE; | |
833 | log_response[5] = LOG_PAGE_INFORMATIONAL_EXCEPTIONS_PAGE; | |
834 | log_response[6] = LOG_PAGE_TEMPERATURE_PAGE; | |
835 | ||
836 | xfer_len = min(alloc_len, LOG_PAGE_SUPPORTED_LOG_PAGES_LENGTH); | |
837 | res = nvme_trans_copy_to_user(hdr, log_response, xfer_len); | |
838 | ||
839 | kfree(log_response); | |
840 | out_mem: | |
841 | return res; | |
842 | } | |
843 | ||
844 | static int nvme_trans_log_info_exceptions(struct nvme_ns *ns, | |
845 | struct sg_io_hdr *hdr, int alloc_len) | |
846 | { | |
e61b0a86 | 847 | int res; |
5d0f6131 VV |
848 | int xfer_len; |
849 | u8 *log_response; | |
850 | struct nvme_command c; | |
851 | struct nvme_dev *dev = ns->dev; | |
852 | struct nvme_smart_log *smart_log; | |
853 | dma_addr_t dma_addr; | |
854 | void *mem; | |
855 | u8 temp_c; | |
856 | u16 temp_k; | |
857 | ||
03ea83e9 | 858 | log_response = kzalloc(LOG_INFO_EXCP_PAGE_LENGTH, GFP_KERNEL); |
5d0f6131 VV |
859 | if (log_response == NULL) { |
860 | res = -ENOMEM; | |
861 | goto out_mem; | |
862 | } | |
5d0f6131 | 863 | |
e75ec752 | 864 | mem = dma_alloc_coherent(dev->dev, sizeof(struct nvme_smart_log), |
5d0f6131 VV |
865 | &dma_addr, GFP_KERNEL); |
866 | if (mem == NULL) { | |
867 | res = -ENOMEM; | |
868 | goto out_dma; | |
869 | } | |
870 | ||
871 | /* Get SMART Log Page */ | |
872 | memset(&c, 0, sizeof(c)); | |
873 | c.common.opcode = nvme_admin_get_log_page; | |
874 | c.common.nsid = cpu_to_le32(0xFFFFFFFF); | |
875 | c.common.prp1 = cpu_to_le64(dma_addr); | |
4131f2fc | 876 | c.common.cdw10[0] = cpu_to_le32((((sizeof(struct nvme_smart_log) / |
ef351b97 | 877 | BYTES_TO_DWORDS) - 1) << 16) | NVME_LOG_SMART); |
f705f837 | 878 | res = nvme_submit_sync_cmd(dev->admin_q, &c); |
5d0f6131 VV |
879 | if (res != NVME_SC_SUCCESS) { |
880 | temp_c = LOG_TEMP_UNKNOWN; | |
881 | } else { | |
882 | smart_log = mem; | |
883 | temp_k = (smart_log->temperature[1] << 8) + | |
884 | (smart_log->temperature[0]); | |
885 | temp_c = temp_k - KELVIN_TEMP_FACTOR; | |
886 | } | |
887 | ||
888 | log_response[0] = LOG_PAGE_INFORMATIONAL_EXCEPTIONS_PAGE; | |
889 | /* Subpage=0x00, Page Length MSB=0 */ | |
890 | log_response[3] = REMAINING_INFO_EXCP_PAGE_LENGTH; | |
891 | /* Informational Exceptions Log Parameter 1 Start */ | |
892 | /* Parameter Code=0x0000 bytes 4,5 */ | |
893 | log_response[6] = 0x23; /* DU=0, TSD=1, ETC=0, TMC=0, FMT_AND_LNK=11b */ | |
894 | log_response[7] = 0x04; /* PARAMETER LENGTH */ | |
895 | /* Add sense Code and qualifier = 0x00 each */ | |
896 | /* Use Temperature from NVMe Get Log Page, convert to C from K */ | |
897 | log_response[10] = temp_c; | |
898 | ||
899 | xfer_len = min(alloc_len, LOG_INFO_EXCP_PAGE_LENGTH); | |
900 | res = nvme_trans_copy_to_user(hdr, log_response, xfer_len); | |
901 | ||
e75ec752 | 902 | dma_free_coherent(dev->dev, sizeof(struct nvme_smart_log), |
5d0f6131 VV |
903 | mem, dma_addr); |
904 | out_dma: | |
905 | kfree(log_response); | |
906 | out_mem: | |
907 | return res; | |
908 | } | |
909 | ||
910 | static int nvme_trans_log_temperature(struct nvme_ns *ns, struct sg_io_hdr *hdr, | |
911 | int alloc_len) | |
912 | { | |
e61b0a86 | 913 | int res; |
5d0f6131 VV |
914 | int xfer_len; |
915 | u8 *log_response; | |
916 | struct nvme_command c; | |
917 | struct nvme_dev *dev = ns->dev; | |
918 | struct nvme_smart_log *smart_log; | |
919 | dma_addr_t dma_addr; | |
920 | void *mem; | |
921 | u32 feature_resp; | |
922 | u8 temp_c_cur, temp_c_thresh; | |
923 | u16 temp_k; | |
924 | ||
03ea83e9 | 925 | log_response = kzalloc(LOG_TEMP_PAGE_LENGTH, GFP_KERNEL); |
5d0f6131 VV |
926 | if (log_response == NULL) { |
927 | res = -ENOMEM; | |
928 | goto out_mem; | |
929 | } | |
5d0f6131 | 930 | |
e75ec752 | 931 | mem = dma_alloc_coherent(dev->dev, sizeof(struct nvme_smart_log), |
5d0f6131 VV |
932 | &dma_addr, GFP_KERNEL); |
933 | if (mem == NULL) { | |
934 | res = -ENOMEM; | |
935 | goto out_dma; | |
936 | } | |
937 | ||
938 | /* Get SMART Log Page */ | |
939 | memset(&c, 0, sizeof(c)); | |
940 | c.common.opcode = nvme_admin_get_log_page; | |
941 | c.common.nsid = cpu_to_le32(0xFFFFFFFF); | |
942 | c.common.prp1 = cpu_to_le64(dma_addr); | |
4131f2fc | 943 | c.common.cdw10[0] = cpu_to_le32((((sizeof(struct nvme_smart_log) / |
ef351b97 | 944 | BYTES_TO_DWORDS) - 1) << 16) | NVME_LOG_SMART); |
f705f837 | 945 | res = nvme_submit_sync_cmd(dev->admin_q, &c); |
5d0f6131 VV |
946 | if (res != NVME_SC_SUCCESS) { |
947 | temp_c_cur = LOG_TEMP_UNKNOWN; | |
948 | } else { | |
949 | smart_log = mem; | |
950 | temp_k = (smart_log->temperature[1] << 8) + | |
951 | (smart_log->temperature[0]); | |
952 | temp_c_cur = temp_k - KELVIN_TEMP_FACTOR; | |
953 | } | |
954 | ||
955 | /* Get Features for Temp Threshold */ | |
956 | res = nvme_get_features(dev, NVME_FEAT_TEMP_THRESH, 0, 0, | |
957 | &feature_resp); | |
958 | if (res != NVME_SC_SUCCESS) | |
959 | temp_c_thresh = LOG_TEMP_UNKNOWN; | |
960 | else | |
961 | temp_c_thresh = (feature_resp & 0xFFFF) - KELVIN_TEMP_FACTOR; | |
962 | ||
963 | log_response[0] = LOG_PAGE_TEMPERATURE_PAGE; | |
964 | /* Subpage=0x00, Page Length MSB=0 */ | |
965 | log_response[3] = REMAINING_TEMP_PAGE_LENGTH; | |
966 | /* Temperature Log Parameter 1 (Temperature) Start */ | |
967 | /* Parameter Code = 0x0000 */ | |
968 | log_response[6] = 0x01; /* Format and Linking = 01b */ | |
969 | log_response[7] = 0x02; /* Parameter Length */ | |
970 | /* Use Temperature from NVMe Get Log Page, convert to C from K */ | |
971 | log_response[9] = temp_c_cur; | |
972 | /* Temperature Log Parameter 2 (Reference Temperature) Start */ | |
973 | log_response[11] = 0x01; /* Parameter Code = 0x0001 */ | |
974 | log_response[12] = 0x01; /* Format and Linking = 01b */ | |
975 | log_response[13] = 0x02; /* Parameter Length */ | |
976 | /* Use Temperature Thresh from NVMe Get Log Page, convert to C from K */ | |
977 | log_response[15] = temp_c_thresh; | |
978 | ||
979 | xfer_len = min(alloc_len, LOG_TEMP_PAGE_LENGTH); | |
980 | res = nvme_trans_copy_to_user(hdr, log_response, xfer_len); | |
981 | ||
e75ec752 | 982 | dma_free_coherent(dev->dev, sizeof(struct nvme_smart_log), |
5d0f6131 VV |
983 | mem, dma_addr); |
984 | out_dma: | |
985 | kfree(log_response); | |
986 | out_mem: | |
987 | return res; | |
988 | } | |
989 | ||
990 | /* MODE SENSE Helper Functions */ | |
991 | ||
992 | static int nvme_trans_fill_mode_parm_hdr(u8 *resp, int len, u8 cdb10, u8 llbaa, | |
993 | u16 mode_data_length, u16 blk_desc_len) | |
994 | { | |
995 | /* Quick check to make sure I don't stomp on my own memory... */ | |
996 | if ((cdb10 && len < 8) || (!cdb10 && len < 4)) | |
e61b0a86 | 997 | return -EINVAL; |
5d0f6131 VV |
998 | |
999 | if (cdb10) { | |
1000 | resp[0] = (mode_data_length & 0xFF00) >> 8; | |
1001 | resp[1] = (mode_data_length & 0x00FF); | |
90851768 | 1002 | resp[3] = 0x10 /* DPOFUA */; |
5d0f6131 VV |
1003 | resp[4] = llbaa; |
1004 | resp[5] = RESERVED_FIELD; | |
1005 | resp[6] = (blk_desc_len & 0xFF00) >> 8; | |
1006 | resp[7] = (blk_desc_len & 0x00FF); | |
1007 | } else { | |
1008 | resp[0] = (mode_data_length & 0x00FF); | |
90851768 | 1009 | resp[2] = 0x10 /* DPOFUA */; |
5d0f6131 VV |
1010 | resp[3] = (blk_desc_len & 0x00FF); |
1011 | } | |
1012 | ||
e61b0a86 | 1013 | return 0; |
5d0f6131 VV |
1014 | } |
1015 | ||
1016 | static int nvme_trans_fill_blk_desc(struct nvme_ns *ns, struct sg_io_hdr *hdr, | |
1017 | u8 *resp, int len, u8 llbaa) | |
1018 | { | |
e61b0a86 | 1019 | int res; |
5d0f6131 VV |
1020 | int nvme_sc; |
1021 | struct nvme_dev *dev = ns->dev; | |
1022 | dma_addr_t dma_addr; | |
1023 | void *mem; | |
1024 | struct nvme_id_ns *id_ns; | |
1025 | u8 flbas; | |
1026 | u32 lba_length; | |
1027 | ||
1028 | if (llbaa == 0 && len < MODE_PAGE_BLK_DES_LEN) | |
e61b0a86 | 1029 | return -EINVAL; |
5d0f6131 | 1030 | else if (llbaa > 0 && len < MODE_PAGE_LLBAA_BLK_DES_LEN) |
e61b0a86 | 1031 | return -EINVAL; |
5d0f6131 | 1032 | |
e75ec752 | 1033 | mem = dma_alloc_coherent(dev->dev, sizeof(struct nvme_id_ns), |
5d0f6131 VV |
1034 | &dma_addr, GFP_KERNEL); |
1035 | if (mem == NULL) { | |
1036 | res = -ENOMEM; | |
1037 | goto out; | |
1038 | } | |
1039 | ||
1040 | /* nvme ns identify */ | |
1041 | nvme_sc = nvme_identify(dev, ns->ns_id, 0, dma_addr); | |
1042 | res = nvme_trans_status_code(hdr, nvme_sc); | |
1043 | if (res) | |
1044 | goto out_dma; | |
e61b0a86 | 1045 | |
5d0f6131 VV |
1046 | id_ns = mem; |
1047 | flbas = (id_ns->flbas) & 0x0F; | |
1048 | lba_length = (1 << (id_ns->lbaf[flbas].ds)); | |
1049 | ||
1050 | if (llbaa == 0) { | |
8741ee4c | 1051 | __be32 tmp_cap = cpu_to_be32(le64_to_cpu(id_ns->ncap)); |
5d0f6131 | 1052 | /* Byte 4 is reserved */ |
8741ee4c | 1053 | __be32 tmp_len = cpu_to_be32(lba_length & 0x00FFFFFF); |
5d0f6131 VV |
1054 | |
1055 | memcpy(resp, &tmp_cap, sizeof(u32)); | |
1056 | memcpy(&resp[4], &tmp_len, sizeof(u32)); | |
1057 | } else { | |
8741ee4c VV |
1058 | __be64 tmp_cap = cpu_to_be64(le64_to_cpu(id_ns->ncap)); |
1059 | __be32 tmp_len = cpu_to_be32(lba_length); | |
5d0f6131 VV |
1060 | |
1061 | memcpy(resp, &tmp_cap, sizeof(u64)); | |
1062 | /* Bytes 8, 9, 10, 11 are reserved */ | |
1063 | memcpy(&resp[12], &tmp_len, sizeof(u32)); | |
1064 | } | |
1065 | ||
1066 | out_dma: | |
e75ec752 | 1067 | dma_free_coherent(dev->dev, sizeof(struct nvme_id_ns), mem, dma_addr); |
5d0f6131 VV |
1068 | out: |
1069 | return res; | |
1070 | } | |
1071 | ||
1072 | static int nvme_trans_fill_control_page(struct nvme_ns *ns, | |
1073 | struct sg_io_hdr *hdr, u8 *resp, | |
1074 | int len) | |
1075 | { | |
1076 | if (len < MODE_PAGE_CONTROL_LEN) | |
e61b0a86 | 1077 | return -EINVAL; |
5d0f6131 VV |
1078 | |
1079 | resp[0] = MODE_PAGE_CONTROL; | |
1080 | resp[1] = MODE_PAGE_CONTROL_LEN_FIELD; | |
1081 | resp[2] = 0x0E; /* TST=000b, TMF_ONLY=0, DPICZ=1, | |
1082 | * D_SENSE=1, GLTSD=1, RLEC=0 */ | |
1083 | resp[3] = 0x12; /* Q_ALGO_MODIFIER=1h, NUAR=0, QERR=01b */ | |
1084 | /* Byte 4: VS=0, RAC=0, UA_INT=0, SWP=0 */ | |
1085 | resp[5] = 0x40; /* ATO=0, TAS=1, ATMPE=0, RWWP=0, AUTOLOAD=0 */ | |
1086 | /* resp[6] and [7] are obsolete, thus zero */ | |
1087 | resp[8] = 0xFF; /* Busy timeout period = 0xffff */ | |
1088 | resp[9] = 0xFF; | |
1089 | /* Bytes 10,11: Extended selftest completion time = 0x0000 */ | |
1090 | ||
e61b0a86 | 1091 | return 0; |
5d0f6131 VV |
1092 | } |
1093 | ||
1094 | static int nvme_trans_fill_caching_page(struct nvme_ns *ns, | |
1095 | struct sg_io_hdr *hdr, | |
1096 | u8 *resp, int len) | |
1097 | { | |
e61b0a86 | 1098 | int res = 0; |
5d0f6131 VV |
1099 | int nvme_sc; |
1100 | struct nvme_dev *dev = ns->dev; | |
1101 | u32 feature_resp; | |
1102 | u8 vwc; | |
1103 | ||
1104 | if (len < MODE_PAGE_CACHING_LEN) | |
e61b0a86 | 1105 | return -EINVAL; |
5d0f6131 VV |
1106 | |
1107 | nvme_sc = nvme_get_features(dev, NVME_FEAT_VOLATILE_WC, 0, 0, | |
1108 | &feature_resp); | |
1109 | res = nvme_trans_status_code(hdr, nvme_sc); | |
1110 | if (res) | |
e61b0a86 CH |
1111 | return res; |
1112 | ||
5d0f6131 VV |
1113 | vwc = feature_resp & 0x00000001; |
1114 | ||
1115 | resp[0] = MODE_PAGE_CACHING; | |
1116 | resp[1] = MODE_PAGE_CACHING_LEN_FIELD; | |
1117 | resp[2] = vwc << 2; | |
e61b0a86 | 1118 | return 0; |
5d0f6131 VV |
1119 | } |
1120 | ||
1121 | static int nvme_trans_fill_pow_cnd_page(struct nvme_ns *ns, | |
1122 | struct sg_io_hdr *hdr, u8 *resp, | |
1123 | int len) | |
1124 | { | |
5d0f6131 | 1125 | if (len < MODE_PAGE_POW_CND_LEN) |
e61b0a86 | 1126 | return -EINVAL; |
5d0f6131 VV |
1127 | |
1128 | resp[0] = MODE_PAGE_POWER_CONDITION; | |
1129 | resp[1] = MODE_PAGE_POW_CND_LEN_FIELD; | |
1130 | /* All other bytes are zero */ | |
1131 | ||
e61b0a86 | 1132 | return 0; |
5d0f6131 VV |
1133 | } |
1134 | ||
1135 | static int nvme_trans_fill_inf_exc_page(struct nvme_ns *ns, | |
1136 | struct sg_io_hdr *hdr, u8 *resp, | |
1137 | int len) | |
1138 | { | |
5d0f6131 | 1139 | if (len < MODE_PAGE_INF_EXC_LEN) |
e61b0a86 | 1140 | return -EINVAL; |
5d0f6131 VV |
1141 | |
1142 | resp[0] = MODE_PAGE_INFO_EXCEP; | |
1143 | resp[1] = MODE_PAGE_INF_EXC_LEN_FIELD; | |
1144 | resp[2] = 0x88; | |
1145 | /* All other bytes are zero */ | |
1146 | ||
e61b0a86 | 1147 | return 0; |
5d0f6131 VV |
1148 | } |
1149 | ||
1150 | static int nvme_trans_fill_all_pages(struct nvme_ns *ns, struct sg_io_hdr *hdr, | |
1151 | u8 *resp, int len) | |
1152 | { | |
e61b0a86 | 1153 | int res; |
5d0f6131 VV |
1154 | u16 mode_pages_offset_1 = 0; |
1155 | u16 mode_pages_offset_2, mode_pages_offset_3, mode_pages_offset_4; | |
1156 | ||
1157 | mode_pages_offset_2 = mode_pages_offset_1 + MODE_PAGE_CACHING_LEN; | |
1158 | mode_pages_offset_3 = mode_pages_offset_2 + MODE_PAGE_CONTROL_LEN; | |
1159 | mode_pages_offset_4 = mode_pages_offset_3 + MODE_PAGE_POW_CND_LEN; | |
1160 | ||
1161 | res = nvme_trans_fill_caching_page(ns, hdr, &resp[mode_pages_offset_1], | |
1162 | MODE_PAGE_CACHING_LEN); | |
e61b0a86 CH |
1163 | if (res) |
1164 | return res; | |
5d0f6131 VV |
1165 | res = nvme_trans_fill_control_page(ns, hdr, &resp[mode_pages_offset_2], |
1166 | MODE_PAGE_CONTROL_LEN); | |
e61b0a86 CH |
1167 | if (res) |
1168 | return res; | |
5d0f6131 VV |
1169 | res = nvme_trans_fill_pow_cnd_page(ns, hdr, &resp[mode_pages_offset_3], |
1170 | MODE_PAGE_POW_CND_LEN); | |
e61b0a86 CH |
1171 | if (res) |
1172 | return res; | |
1173 | return nvme_trans_fill_inf_exc_page(ns, hdr, &resp[mode_pages_offset_4], | |
5d0f6131 | 1174 | MODE_PAGE_INF_EXC_LEN); |
5d0f6131 VV |
1175 | } |
1176 | ||
1177 | static inline int nvme_trans_get_blk_desc_len(u8 dbd, u8 llbaa) | |
1178 | { | |
1179 | if (dbd == MODE_SENSE_BLK_DESC_ENABLED) { | |
1180 | /* SPC-4: len = 8 x Num_of_descriptors if llbaa = 0, 16x if 1 */ | |
1181 | return 8 * (llbaa + 1) * MODE_SENSE_BLK_DESC_COUNT; | |
1182 | } else { | |
1183 | return 0; | |
1184 | } | |
1185 | } | |
1186 | ||
1187 | static int nvme_trans_mode_page_create(struct nvme_ns *ns, | |
1188 | struct sg_io_hdr *hdr, u8 *cmd, | |
1189 | u16 alloc_len, u8 cdb10, | |
1190 | int (*mode_page_fill_func) | |
1191 | (struct nvme_ns *, | |
1192 | struct sg_io_hdr *hdr, u8 *, int), | |
1193 | u16 mode_pages_tot_len) | |
1194 | { | |
e61b0a86 | 1195 | int res; |
5d0f6131 VV |
1196 | int xfer_len; |
1197 | u8 *response; | |
1198 | u8 dbd, llbaa; | |
1199 | u16 resp_size; | |
1200 | int mph_size; | |
1201 | u16 mode_pages_offset_1; | |
1202 | u16 blk_desc_len, blk_desc_offset, mode_data_length; | |
1203 | ||
3726897e CH |
1204 | dbd = (cmd[1] & MODE_SENSE_DBD_MASK) >> MODE_SENSE_DBD_SHIFT; |
1205 | llbaa = (cmd[1] & MODE_SENSE_LLBAA_MASK) >> MODE_SENSE_LLBAA_SHIFT; | |
1206 | mph_size = cdb10 ? MODE_SENSE10_MPH_SIZE : MODE_SENSE6_MPH_SIZE; | |
1207 | ||
5d0f6131 VV |
1208 | blk_desc_len = nvme_trans_get_blk_desc_len(dbd, llbaa); |
1209 | ||
1210 | resp_size = mph_size + blk_desc_len + mode_pages_tot_len; | |
1211 | /* Refer spc4r34 Table 440 for calculation of Mode data Length field */ | |
1212 | mode_data_length = 3 + (3 * cdb10) + blk_desc_len + mode_pages_tot_len; | |
1213 | ||
1214 | blk_desc_offset = mph_size; | |
1215 | mode_pages_offset_1 = blk_desc_offset + blk_desc_len; | |
1216 | ||
03ea83e9 | 1217 | response = kzalloc(resp_size, GFP_KERNEL); |
5d0f6131 VV |
1218 | if (response == NULL) { |
1219 | res = -ENOMEM; | |
1220 | goto out_mem; | |
1221 | } | |
5d0f6131 VV |
1222 | |
1223 | res = nvme_trans_fill_mode_parm_hdr(&response[0], mph_size, cdb10, | |
1224 | llbaa, mode_data_length, blk_desc_len); | |
e61b0a86 | 1225 | if (res) |
5d0f6131 VV |
1226 | goto out_free; |
1227 | if (blk_desc_len > 0) { | |
1228 | res = nvme_trans_fill_blk_desc(ns, hdr, | |
1229 | &response[blk_desc_offset], | |
1230 | blk_desc_len, llbaa); | |
e61b0a86 | 1231 | if (res) |
5d0f6131 VV |
1232 | goto out_free; |
1233 | } | |
1234 | res = mode_page_fill_func(ns, hdr, &response[mode_pages_offset_1], | |
1235 | mode_pages_tot_len); | |
e61b0a86 | 1236 | if (res) |
5d0f6131 VV |
1237 | goto out_free; |
1238 | ||
1239 | xfer_len = min(alloc_len, resp_size); | |
1240 | res = nvme_trans_copy_to_user(hdr, response, xfer_len); | |
1241 | ||
1242 | out_free: | |
1243 | kfree(response); | |
1244 | out_mem: | |
1245 | return res; | |
1246 | } | |
1247 | ||
1248 | /* Read Capacity Helper Functions */ | |
1249 | ||
1250 | static void nvme_trans_fill_read_cap(u8 *response, struct nvme_id_ns *id_ns, | |
1251 | u8 cdb16) | |
1252 | { | |
1253 | u8 flbas; | |
1254 | u32 lba_length; | |
1255 | u64 rlba; | |
1256 | u8 prot_en; | |
1257 | u8 p_type_lut[4] = {0, 0, 1, 2}; | |
8741ee4c VV |
1258 | __be64 tmp_rlba; |
1259 | __be32 tmp_rlba_32; | |
1260 | __be32 tmp_len; | |
5d0f6131 VV |
1261 | |
1262 | flbas = (id_ns->flbas) & 0x0F; | |
1263 | lba_length = (1 << (id_ns->lbaf[flbas].ds)); | |
1264 | rlba = le64_to_cpup(&id_ns->nsze) - 1; | |
1265 | (id_ns->dps) ? (prot_en = 0x01) : (prot_en = 0); | |
1266 | ||
1267 | if (!cdb16) { | |
1268 | if (rlba > 0xFFFFFFFF) | |
1269 | rlba = 0xFFFFFFFF; | |
1270 | tmp_rlba_32 = cpu_to_be32(rlba); | |
1271 | tmp_len = cpu_to_be32(lba_length); | |
1272 | memcpy(response, &tmp_rlba_32, sizeof(u32)); | |
1273 | memcpy(&response[4], &tmp_len, sizeof(u32)); | |
1274 | } else { | |
1275 | tmp_rlba = cpu_to_be64(rlba); | |
1276 | tmp_len = cpu_to_be32(lba_length); | |
1277 | memcpy(response, &tmp_rlba, sizeof(u64)); | |
1278 | memcpy(&response[8], &tmp_len, sizeof(u32)); | |
1279 | response[12] = (p_type_lut[id_ns->dps & 0x3] << 1) | prot_en; | |
1280 | /* P_I_Exponent = 0x0 | LBPPBE = 0x0 */ | |
1281 | /* LBPME = 0 | LBPRZ = 0 | LALBA = 0x00 */ | |
1282 | /* Bytes 16-31 - Reserved */ | |
1283 | } | |
1284 | } | |
1285 | ||
1286 | /* Start Stop Unit Helper Functions */ | |
1287 | ||
1288 | static int nvme_trans_power_state(struct nvme_ns *ns, struct sg_io_hdr *hdr, | |
1289 | u8 pc, u8 pcmod, u8 start) | |
1290 | { | |
e61b0a86 | 1291 | int res; |
5d0f6131 VV |
1292 | int nvme_sc; |
1293 | struct nvme_dev *dev = ns->dev; | |
1294 | dma_addr_t dma_addr; | |
1295 | void *mem; | |
1296 | struct nvme_id_ctrl *id_ctrl; | |
1297 | int lowest_pow_st; /* max npss = lowest power consumption */ | |
1298 | unsigned ps_desired = 0; | |
1299 | ||
1300 | /* NVMe Controller Identify */ | |
e75ec752 | 1301 | mem = dma_alloc_coherent(dev->dev, sizeof(struct nvme_id_ctrl), |
5d0f6131 VV |
1302 | &dma_addr, GFP_KERNEL); |
1303 | if (mem == NULL) { | |
1304 | res = -ENOMEM; | |
1305 | goto out; | |
1306 | } | |
1307 | nvme_sc = nvme_identify(dev, 0, 1, dma_addr); | |
1308 | res = nvme_trans_status_code(hdr, nvme_sc); | |
1309 | if (res) | |
1310 | goto out_dma; | |
e61b0a86 | 1311 | |
5d0f6131 | 1312 | id_ctrl = mem; |
b8e08084 | 1313 | lowest_pow_st = max(POWER_STATE_0, (int)(id_ctrl->npss - 1)); |
5d0f6131 VV |
1314 | |
1315 | switch (pc) { | |
1316 | case NVME_POWER_STATE_START_VALID: | |
1317 | /* Action unspecified if POWER CONDITION MODIFIER != 0 */ | |
1318 | if (pcmod == 0 && start == 0x1) | |
1319 | ps_desired = POWER_STATE_0; | |
1320 | if (pcmod == 0 && start == 0x0) | |
1321 | ps_desired = lowest_pow_st; | |
1322 | break; | |
1323 | case NVME_POWER_STATE_ACTIVE: | |
1324 | /* Action unspecified if POWER CONDITION MODIFIER != 0 */ | |
1325 | if (pcmod == 0) | |
1326 | ps_desired = POWER_STATE_0; | |
1327 | break; | |
1328 | case NVME_POWER_STATE_IDLE: | |
1329 | /* Action unspecified if POWER CONDITION MODIFIER != [0,1,2] */ | |
5d0f6131 | 1330 | if (pcmod == 0x0) |
b8e08084 | 1331 | ps_desired = POWER_STATE_1; |
5d0f6131 | 1332 | else if (pcmod == 0x1) |
b8e08084 | 1333 | ps_desired = POWER_STATE_2; |
5d0f6131 | 1334 | else if (pcmod == 0x2) |
b8e08084 | 1335 | ps_desired = POWER_STATE_3; |
5d0f6131 VV |
1336 | break; |
1337 | case NVME_POWER_STATE_STANDBY: | |
1338 | /* Action unspecified if POWER CONDITION MODIFIER != [0,1] */ | |
1339 | if (pcmod == 0x0) | |
b8e08084 | 1340 | ps_desired = max(POWER_STATE_0, (lowest_pow_st - 2)); |
5d0f6131 | 1341 | else if (pcmod == 0x1) |
b8e08084 | 1342 | ps_desired = max(POWER_STATE_0, (lowest_pow_st - 1)); |
5d0f6131 VV |
1343 | break; |
1344 | case NVME_POWER_STATE_LU_CONTROL: | |
1345 | default: | |
1346 | res = nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION, | |
1347 | ILLEGAL_REQUEST, SCSI_ASC_INVALID_CDB, | |
1348 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
1349 | break; | |
1350 | } | |
1351 | nvme_sc = nvme_set_features(dev, NVME_FEAT_POWER_MGMT, ps_desired, 0, | |
1352 | NULL); | |
1353 | res = nvme_trans_status_code(hdr, nvme_sc); | |
e61b0a86 | 1354 | |
5d0f6131 | 1355 | out_dma: |
e75ec752 | 1356 | dma_free_coherent(dev->dev, sizeof(struct nvme_id_ctrl), mem, dma_addr); |
5d0f6131 VV |
1357 | out: |
1358 | return res; | |
1359 | } | |
1360 | ||
b90c48d0 CH |
1361 | static int nvme_trans_send_activate_fw_cmd(struct nvme_ns *ns, struct sg_io_hdr *hdr, |
1362 | u8 buffer_id) | |
1363 | { | |
1364 | struct nvme_command c; | |
1365 | int nvme_sc; | |
b90c48d0 CH |
1366 | |
1367 | memset(&c, 0, sizeof(c)); | |
1368 | c.common.opcode = nvme_admin_activate_fw; | |
1369 | c.common.cdw10[0] = cpu_to_le32(buffer_id | NVME_FWACT_REPL_ACTV); | |
1370 | ||
1371 | nvme_sc = nvme_submit_sync_cmd(ns->queue, &c); | |
e61b0a86 | 1372 | return nvme_trans_status_code(hdr, nvme_sc); |
b90c48d0 | 1373 | } |
5d0f6131 | 1374 | |
b90c48d0 | 1375 | static int nvme_trans_send_download_fw_cmd(struct nvme_ns *ns, struct sg_io_hdr *hdr, |
5d0f6131 VV |
1376 | u8 opcode, u32 tot_len, u32 offset, |
1377 | u8 buffer_id) | |
1378 | { | |
e61b0a86 | 1379 | int res; |
5d0f6131 VV |
1380 | int nvme_sc; |
1381 | struct nvme_dev *dev = ns->dev; | |
1382 | struct nvme_command c; | |
1383 | struct nvme_iod *iod = NULL; | |
1384 | unsigned length; | |
1385 | ||
1386 | memset(&c, 0, sizeof(c)); | |
b90c48d0 | 1387 | c.common.opcode = nvme_admin_download_fw; |
5d0f6131 | 1388 | |
b90c48d0 CH |
1389 | if (hdr->iovec_count > 0) { |
1390 | /* Assuming SGL is not allowed for this command */ | |
1391 | return nvme_trans_completion(hdr, | |
1392 | SAM_STAT_CHECK_CONDITION, | |
1393 | ILLEGAL_REQUEST, | |
1394 | SCSI_ASC_INVALID_CDB, | |
1395 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
1396 | } | |
1397 | iod = nvme_map_user_pages(dev, DMA_TO_DEVICE, | |
1398 | (unsigned long)hdr->dxferp, tot_len); | |
1399 | if (IS_ERR(iod)) | |
1400 | return PTR_ERR(iod); | |
1401 | length = nvme_setup_prps(dev, iod, tot_len, GFP_KERNEL); | |
1402 | if (length != tot_len) { | |
1403 | res = -ENOMEM; | |
1404 | goto out_unmap; | |
5d0f6131 VV |
1405 | } |
1406 | ||
b90c48d0 CH |
1407 | c.dlfw.prp1 = cpu_to_le64(sg_dma_address(iod->sg)); |
1408 | c.dlfw.prp2 = cpu_to_le64(iod->first_dma); | |
1409 | c.dlfw.numd = cpu_to_le32((tot_len/BYTES_TO_DWORDS) - 1); | |
1410 | c.dlfw.offset = cpu_to_le32(offset/BYTES_TO_DWORDS); | |
1411 | ||
f705f837 | 1412 | nvme_sc = nvme_submit_sync_cmd(dev->admin_q, &c); |
5d0f6131 | 1413 | res = nvme_trans_status_code(hdr, nvme_sc); |
5d0f6131 VV |
1414 | |
1415 | out_unmap: | |
b90c48d0 CH |
1416 | nvme_unmap_user_pages(dev, DMA_TO_DEVICE, iod); |
1417 | nvme_free_iod(dev, iod); | |
5d0f6131 VV |
1418 | return res; |
1419 | } | |
1420 | ||
1421 | /* Mode Select Helper Functions */ | |
1422 | ||
1423 | static inline void nvme_trans_modesel_get_bd_len(u8 *parm_list, u8 cdb10, | |
1424 | u16 *bd_len, u8 *llbaa) | |
1425 | { | |
1426 | if (cdb10) { | |
1427 | /* 10 Byte CDB */ | |
1428 | *bd_len = (parm_list[MODE_SELECT_10_BD_OFFSET] << 8) + | |
1429 | parm_list[MODE_SELECT_10_BD_OFFSET + 1]; | |
9ac16938 | 1430 | *llbaa = parm_list[MODE_SELECT_10_LLBAA_OFFSET] & |
5d0f6131 VV |
1431 | MODE_SELECT_10_LLBAA_MASK; |
1432 | } else { | |
1433 | /* 6 Byte CDB */ | |
1434 | *bd_len = parm_list[MODE_SELECT_6_BD_OFFSET]; | |
1435 | } | |
1436 | } | |
1437 | ||
1438 | static void nvme_trans_modesel_save_bd(struct nvme_ns *ns, u8 *parm_list, | |
1439 | u16 idx, u16 bd_len, u8 llbaa) | |
1440 | { | |
1441 | u16 bd_num; | |
1442 | ||
1443 | bd_num = bd_len / ((llbaa == 0) ? | |
1444 | SHORT_DESC_BLOCK : LONG_DESC_BLOCK); | |
1445 | /* Store block descriptor info if a FORMAT UNIT comes later */ | |
1446 | /* TODO Saving 1st BD info; what to do if multiple BD received? */ | |
1447 | if (llbaa == 0) { | |
1448 | /* Standard Block Descriptor - spc4r34 7.5.5.1 */ | |
1449 | ns->mode_select_num_blocks = | |
1450 | (parm_list[idx + 1] << 16) + | |
1451 | (parm_list[idx + 2] << 8) + | |
1452 | (parm_list[idx + 3]); | |
1453 | ||
1454 | ns->mode_select_block_len = | |
1455 | (parm_list[idx + 5] << 16) + | |
1456 | (parm_list[idx + 6] << 8) + | |
1457 | (parm_list[idx + 7]); | |
1458 | } else { | |
1459 | /* Long LBA Block Descriptor - sbc3r27 6.4.2.3 */ | |
1460 | ns->mode_select_num_blocks = | |
1461 | (((u64)parm_list[idx + 0]) << 56) + | |
1462 | (((u64)parm_list[idx + 1]) << 48) + | |
1463 | (((u64)parm_list[idx + 2]) << 40) + | |
1464 | (((u64)parm_list[idx + 3]) << 32) + | |
1465 | (((u64)parm_list[idx + 4]) << 24) + | |
1466 | (((u64)parm_list[idx + 5]) << 16) + | |
1467 | (((u64)parm_list[idx + 6]) << 8) + | |
1468 | ((u64)parm_list[idx + 7]); | |
1469 | ||
1470 | ns->mode_select_block_len = | |
1471 | (parm_list[idx + 12] << 24) + | |
1472 | (parm_list[idx + 13] << 16) + | |
1473 | (parm_list[idx + 14] << 8) + | |
1474 | (parm_list[idx + 15]); | |
1475 | } | |
1476 | } | |
1477 | ||
710a143d | 1478 | static int nvme_trans_modesel_get_mp(struct nvme_ns *ns, struct sg_io_hdr *hdr, |
5d0f6131 VV |
1479 | u8 *mode_page, u8 page_code) |
1480 | { | |
e61b0a86 | 1481 | int res = 0; |
5d0f6131 VV |
1482 | int nvme_sc; |
1483 | struct nvme_dev *dev = ns->dev; | |
1484 | unsigned dword11; | |
1485 | ||
1486 | switch (page_code) { | |
1487 | case MODE_PAGE_CACHING: | |
1488 | dword11 = ((mode_page[2] & CACHING_MODE_PAGE_WCE_MASK) ? 1 : 0); | |
1489 | nvme_sc = nvme_set_features(dev, NVME_FEAT_VOLATILE_WC, dword11, | |
1490 | 0, NULL); | |
1491 | res = nvme_trans_status_code(hdr, nvme_sc); | |
5d0f6131 VV |
1492 | break; |
1493 | case MODE_PAGE_CONTROL: | |
1494 | break; | |
1495 | case MODE_PAGE_POWER_CONDITION: | |
1496 | /* Verify the OS is not trying to set timers */ | |
1497 | if ((mode_page[2] & 0x01) != 0 || (mode_page[3] & 0x0F) != 0) { | |
1498 | res = nvme_trans_completion(hdr, | |
1499 | SAM_STAT_CHECK_CONDITION, | |
1500 | ILLEGAL_REQUEST, | |
1501 | SCSI_ASC_INVALID_PARAMETER, | |
1502 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
5d0f6131 VV |
1503 | break; |
1504 | } | |
1505 | break; | |
1506 | default: | |
1507 | res = nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION, | |
1508 | ILLEGAL_REQUEST, SCSI_ASC_INVALID_CDB, | |
1509 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
5d0f6131 VV |
1510 | break; |
1511 | } | |
1512 | ||
1513 | return res; | |
1514 | } | |
1515 | ||
1516 | static int nvme_trans_modesel_data(struct nvme_ns *ns, struct sg_io_hdr *hdr, | |
1517 | u8 *cmd, u16 parm_list_len, u8 pf, | |
1518 | u8 sp, u8 cdb10) | |
1519 | { | |
e61b0a86 | 1520 | int res; |
5d0f6131 VV |
1521 | u8 *parm_list; |
1522 | u16 bd_len; | |
1523 | u8 llbaa = 0; | |
1524 | u16 index, saved_index; | |
1525 | u8 page_code; | |
1526 | u16 mp_size; | |
1527 | ||
1528 | /* Get parm list from data-in/out buffer */ | |
1529 | parm_list = kmalloc(parm_list_len, GFP_KERNEL); | |
1530 | if (parm_list == NULL) { | |
1531 | res = -ENOMEM; | |
1532 | goto out; | |
1533 | } | |
1534 | ||
1535 | res = nvme_trans_copy_from_user(hdr, parm_list, parm_list_len); | |
e61b0a86 | 1536 | if (res) |
5d0f6131 VV |
1537 | goto out_mem; |
1538 | ||
1539 | nvme_trans_modesel_get_bd_len(parm_list, cdb10, &bd_len, &llbaa); | |
1540 | index = (cdb10) ? (MODE_SELECT_10_MPH_SIZE) : (MODE_SELECT_6_MPH_SIZE); | |
1541 | ||
1542 | if (bd_len != 0) { | |
1543 | /* Block Descriptors present, parse */ | |
1544 | nvme_trans_modesel_save_bd(ns, parm_list, index, bd_len, llbaa); | |
1545 | index += bd_len; | |
1546 | } | |
1547 | saved_index = index; | |
1548 | ||
1549 | /* Multiple mode pages may be present; iterate through all */ | |
1550 | /* In 1st Iteration, don't do NVME Command, only check for CDB errors */ | |
1551 | do { | |
1552 | page_code = parm_list[index] & MODE_SELECT_PAGE_CODE_MASK; | |
1553 | mp_size = parm_list[index + 1] + 2; | |
1554 | if ((page_code != MODE_PAGE_CACHING) && | |
1555 | (page_code != MODE_PAGE_CONTROL) && | |
1556 | (page_code != MODE_PAGE_POWER_CONDITION)) { | |
1557 | res = nvme_trans_completion(hdr, | |
1558 | SAM_STAT_CHECK_CONDITION, | |
1559 | ILLEGAL_REQUEST, | |
1560 | SCSI_ASC_INVALID_CDB, | |
1561 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
1562 | goto out_mem; | |
1563 | } | |
1564 | index += mp_size; | |
1565 | } while (index < parm_list_len); | |
1566 | ||
1567 | /* In 2nd Iteration, do the NVME Commands */ | |
1568 | index = saved_index; | |
1569 | do { | |
1570 | page_code = parm_list[index] & MODE_SELECT_PAGE_CODE_MASK; | |
1571 | mp_size = parm_list[index + 1] + 2; | |
1572 | res = nvme_trans_modesel_get_mp(ns, hdr, &parm_list[index], | |
1573 | page_code); | |
e61b0a86 | 1574 | if (res) |
5d0f6131 VV |
1575 | break; |
1576 | index += mp_size; | |
1577 | } while (index < parm_list_len); | |
1578 | ||
1579 | out_mem: | |
1580 | kfree(parm_list); | |
1581 | out: | |
1582 | return res; | |
1583 | } | |
1584 | ||
1585 | /* Format Unit Helper Functions */ | |
1586 | ||
1587 | static int nvme_trans_fmt_set_blk_size_count(struct nvme_ns *ns, | |
1588 | struct sg_io_hdr *hdr) | |
1589 | { | |
e61b0a86 | 1590 | int res = 0; |
5d0f6131 VV |
1591 | int nvme_sc; |
1592 | struct nvme_dev *dev = ns->dev; | |
1593 | dma_addr_t dma_addr; | |
1594 | void *mem; | |
1595 | struct nvme_id_ns *id_ns; | |
1596 | u8 flbas; | |
1597 | ||
1598 | /* | |
1599 | * SCSI Expects a MODE SELECT would have been issued prior to | |
1600 | * a FORMAT UNIT, and the block size and number would be used | |
1601 | * from the block descriptor in it. If a MODE SELECT had not | |
1602 | * been issued, FORMAT shall use the current values for both. | |
1603 | */ | |
1604 | ||
1605 | if (ns->mode_select_num_blocks == 0 || ns->mode_select_block_len == 0) { | |
e75ec752 | 1606 | mem = dma_alloc_coherent(dev->dev, |
5d0f6131 VV |
1607 | sizeof(struct nvme_id_ns), &dma_addr, GFP_KERNEL); |
1608 | if (mem == NULL) { | |
1609 | res = -ENOMEM; | |
1610 | goto out; | |
1611 | } | |
1612 | /* nvme ns identify */ | |
1613 | nvme_sc = nvme_identify(dev, ns->ns_id, 0, dma_addr); | |
1614 | res = nvme_trans_status_code(hdr, nvme_sc); | |
1615 | if (res) | |
1616 | goto out_dma; | |
e61b0a86 | 1617 | |
5d0f6131 VV |
1618 | id_ns = mem; |
1619 | ||
1620 | if (ns->mode_select_num_blocks == 0) | |
8741ee4c | 1621 | ns->mode_select_num_blocks = le64_to_cpu(id_ns->ncap); |
5d0f6131 VV |
1622 | if (ns->mode_select_block_len == 0) { |
1623 | flbas = (id_ns->flbas) & 0x0F; | |
1624 | ns->mode_select_block_len = | |
1625 | (1 << (id_ns->lbaf[flbas].ds)); | |
1626 | } | |
1627 | out_dma: | |
e75ec752 | 1628 | dma_free_coherent(dev->dev, sizeof(struct nvme_id_ns), |
5d0f6131 VV |
1629 | mem, dma_addr); |
1630 | } | |
1631 | out: | |
1632 | return res; | |
1633 | } | |
1634 | ||
1635 | static int nvme_trans_fmt_get_parm_header(struct sg_io_hdr *hdr, u8 len, | |
1636 | u8 format_prot_info, u8 *nvme_pf_code) | |
1637 | { | |
e61b0a86 | 1638 | int res; |
5d0f6131 VV |
1639 | u8 *parm_list; |
1640 | u8 pf_usage, pf_code; | |
1641 | ||
1642 | parm_list = kmalloc(len, GFP_KERNEL); | |
1643 | if (parm_list == NULL) { | |
1644 | res = -ENOMEM; | |
1645 | goto out; | |
1646 | } | |
1647 | res = nvme_trans_copy_from_user(hdr, parm_list, len); | |
e61b0a86 | 1648 | if (res) |
5d0f6131 VV |
1649 | goto out_mem; |
1650 | ||
1651 | if ((parm_list[FORMAT_UNIT_IMMED_OFFSET] & | |
1652 | FORMAT_UNIT_IMMED_MASK) != 0) { | |
1653 | res = nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION, | |
1654 | ILLEGAL_REQUEST, SCSI_ASC_INVALID_CDB, | |
1655 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
1656 | goto out_mem; | |
1657 | } | |
1658 | ||
1659 | if (len == FORMAT_UNIT_LONG_PARM_LIST_LEN && | |
1660 | (parm_list[FORMAT_UNIT_PROT_INT_OFFSET] & 0x0F) != 0) { | |
1661 | res = nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION, | |
1662 | ILLEGAL_REQUEST, SCSI_ASC_INVALID_CDB, | |
1663 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
1664 | goto out_mem; | |
1665 | } | |
1666 | pf_usage = parm_list[FORMAT_UNIT_PROT_FIELD_USAGE_OFFSET] & | |
1667 | FORMAT_UNIT_PROT_FIELD_USAGE_MASK; | |
1668 | pf_code = (pf_usage << 2) | format_prot_info; | |
1669 | switch (pf_code) { | |
1670 | case 0: | |
1671 | *nvme_pf_code = 0; | |
1672 | break; | |
1673 | case 2: | |
1674 | *nvme_pf_code = 1; | |
1675 | break; | |
1676 | case 3: | |
1677 | *nvme_pf_code = 2; | |
1678 | break; | |
1679 | case 7: | |
1680 | *nvme_pf_code = 3; | |
1681 | break; | |
1682 | default: | |
1683 | res = nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION, | |
1684 | ILLEGAL_REQUEST, SCSI_ASC_INVALID_CDB, | |
1685 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
1686 | break; | |
1687 | } | |
1688 | ||
1689 | out_mem: | |
1690 | kfree(parm_list); | |
1691 | out: | |
1692 | return res; | |
1693 | } | |
1694 | ||
1695 | static int nvme_trans_fmt_send_cmd(struct nvme_ns *ns, struct sg_io_hdr *hdr, | |
1696 | u8 prot_info) | |
1697 | { | |
e61b0a86 | 1698 | int res; |
5d0f6131 VV |
1699 | int nvme_sc; |
1700 | struct nvme_dev *dev = ns->dev; | |
1701 | dma_addr_t dma_addr; | |
1702 | void *mem; | |
1703 | struct nvme_id_ns *id_ns; | |
1704 | u8 i; | |
1705 | u8 flbas, nlbaf; | |
1706 | u8 selected_lbaf = 0xFF; | |
1707 | u32 cdw10 = 0; | |
1708 | struct nvme_command c; | |
1709 | ||
1710 | /* Loop thru LBAF's in id_ns to match reqd lbaf, put in cdw10 */ | |
e75ec752 | 1711 | mem = dma_alloc_coherent(dev->dev, sizeof(struct nvme_id_ns), |
5d0f6131 VV |
1712 | &dma_addr, GFP_KERNEL); |
1713 | if (mem == NULL) { | |
1714 | res = -ENOMEM; | |
1715 | goto out; | |
1716 | } | |
1717 | /* nvme ns identify */ | |
1718 | nvme_sc = nvme_identify(dev, ns->ns_id, 0, dma_addr); | |
1719 | res = nvme_trans_status_code(hdr, nvme_sc); | |
1720 | if (res) | |
1721 | goto out_dma; | |
e61b0a86 | 1722 | |
5d0f6131 VV |
1723 | id_ns = mem; |
1724 | flbas = (id_ns->flbas) & 0x0F; | |
1725 | nlbaf = id_ns->nlbaf; | |
1726 | ||
1727 | for (i = 0; i < nlbaf; i++) { | |
1728 | if (ns->mode_select_block_len == (1 << (id_ns->lbaf[i].ds))) { | |
1729 | selected_lbaf = i; | |
1730 | break; | |
1731 | } | |
1732 | } | |
1733 | if (selected_lbaf > 0x0F) { | |
1734 | res = nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION, | |
1735 | ILLEGAL_REQUEST, SCSI_ASC_INVALID_PARAMETER, | |
1736 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
1737 | } | |
8741ee4c | 1738 | if (ns->mode_select_num_blocks != le64_to_cpu(id_ns->ncap)) { |
5d0f6131 VV |
1739 | res = nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION, |
1740 | ILLEGAL_REQUEST, SCSI_ASC_INVALID_PARAMETER, | |
1741 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
1742 | } | |
1743 | ||
1744 | cdw10 |= prot_info << 5; | |
1745 | cdw10 |= selected_lbaf & 0x0F; | |
1746 | memset(&c, 0, sizeof(c)); | |
1747 | c.format.opcode = nvme_admin_format_nvm; | |
8741ee4c | 1748 | c.format.nsid = cpu_to_le32(ns->ns_id); |
5d0f6131 VV |
1749 | c.format.cdw10 = cpu_to_le32(cdw10); |
1750 | ||
f705f837 | 1751 | nvme_sc = nvme_submit_sync_cmd(dev->admin_q, &c); |
5d0f6131 | 1752 | res = nvme_trans_status_code(hdr, nvme_sc); |
5d0f6131 VV |
1753 | |
1754 | out_dma: | |
e75ec752 | 1755 | dma_free_coherent(dev->dev, sizeof(struct nvme_id_ns), mem, dma_addr); |
5d0f6131 VV |
1756 | out: |
1757 | return res; | |
1758 | } | |
1759 | ||
5d0f6131 VV |
1760 | static inline u32 nvme_trans_io_get_num_cmds(struct sg_io_hdr *hdr, |
1761 | struct nvme_trans_io_cdb *cdb_info, | |
1762 | u32 max_blocks) | |
1763 | { | |
1764 | /* If using iovecs, send one nvme command per vector */ | |
1765 | if (hdr->iovec_count > 0) | |
1766 | return hdr->iovec_count; | |
1767 | else if (cdb_info->xfer_len > max_blocks) | |
1768 | return ((cdb_info->xfer_len - 1) / max_blocks) + 1; | |
1769 | else | |
1770 | return 1; | |
1771 | } | |
1772 | ||
1773 | static u16 nvme_trans_io_get_control(struct nvme_ns *ns, | |
1774 | struct nvme_trans_io_cdb *cdb_info) | |
1775 | { | |
1776 | u16 control = 0; | |
1777 | ||
1778 | /* When Protection information support is added, implement here */ | |
1779 | ||
1780 | if (cdb_info->fua > 0) | |
1781 | control |= NVME_RW_FUA; | |
1782 | ||
1783 | return control; | |
1784 | } | |
1785 | ||
1786 | static int nvme_trans_do_nvme_io(struct nvme_ns *ns, struct sg_io_hdr *hdr, | |
1787 | struct nvme_trans_io_cdb *cdb_info, u8 is_write) | |
1788 | { | |
e61b0a86 | 1789 | int nvme_sc = NVME_SC_SUCCESS; |
5d0f6131 | 1790 | struct nvme_dev *dev = ns->dev; |
5d0f6131 VV |
1791 | u32 num_cmds; |
1792 | struct nvme_iod *iod; | |
1793 | u64 unit_len; | |
1794 | u64 unit_num_blocks; /* Number of blocks to xfer in each nvme cmd */ | |
1795 | u32 retcode; | |
1796 | u32 i = 0; | |
1797 | u64 nvme_offset = 0; | |
8741ee4c | 1798 | void __user *next_mapping_addr; |
5d0f6131 VV |
1799 | struct nvme_command c; |
1800 | u8 opcode = (is_write ? nvme_cmd_write : nvme_cmd_read); | |
1801 | u16 control; | |
ddcb7762 | 1802 | u32 max_blocks = queue_max_hw_sectors(ns->queue); |
5d0f6131 VV |
1803 | |
1804 | num_cmds = nvme_trans_io_get_num_cmds(hdr, cdb_info, max_blocks); | |
1805 | ||
1806 | /* | |
1807 | * This loop handles two cases. | |
1808 | * First, when an SGL is used in the form of an iovec list: | |
1809 | * - Use iov_base as the next mapping address for the nvme command_id | |
1810 | * - Use iov_len as the data transfer length for the command. | |
1811 | * Second, when we have a single buffer | |
1812 | * - If larger than max_blocks, split into chunks, offset | |
1813 | * each nvme command accordingly. | |
1814 | */ | |
1815 | for (i = 0; i < num_cmds; i++) { | |
1816 | memset(&c, 0, sizeof(c)); | |
1817 | if (hdr->iovec_count > 0) { | |
8741ee4c VV |
1818 | struct sg_iovec sgl; |
1819 | ||
1820 | retcode = copy_from_user(&sgl, hdr->dxferp + | |
1821 | i * sizeof(struct sg_iovec), | |
1822 | sizeof(struct sg_iovec)); | |
1823 | if (retcode) | |
1824 | return -EFAULT; | |
1825 | unit_len = sgl.iov_len; | |
5d0f6131 | 1826 | unit_num_blocks = unit_len >> ns->lba_shift; |
8741ee4c | 1827 | next_mapping_addr = sgl.iov_base; |
5d0f6131 VV |
1828 | } else { |
1829 | unit_num_blocks = min((u64)max_blocks, | |
1830 | (cdb_info->xfer_len - nvme_offset)); | |
1831 | unit_len = unit_num_blocks << ns->lba_shift; | |
1832 | next_mapping_addr = hdr->dxferp + | |
1833 | ((1 << ns->lba_shift) * nvme_offset); | |
1834 | } | |
1835 | ||
1836 | c.rw.opcode = opcode; | |
1837 | c.rw.nsid = cpu_to_le32(ns->ns_id); | |
1838 | c.rw.slba = cpu_to_le64(cdb_info->lba + nvme_offset); | |
1839 | c.rw.length = cpu_to_le16(unit_num_blocks - 1); | |
1840 | control = nvme_trans_io_get_control(ns, cdb_info); | |
1841 | c.rw.control = cpu_to_le16(control); | |
1842 | ||
1843 | iod = nvme_map_user_pages(dev, | |
1844 | (is_write) ? DMA_TO_DEVICE : DMA_FROM_DEVICE, | |
1845 | (unsigned long)next_mapping_addr, unit_len); | |
e61b0a86 CH |
1846 | if (IS_ERR(iod)) |
1847 | return PTR_ERR(iod); | |
1848 | ||
edd10d33 | 1849 | retcode = nvme_setup_prps(dev, iod, unit_len, GFP_KERNEL); |
5d0f6131 VV |
1850 | if (retcode != unit_len) { |
1851 | nvme_unmap_user_pages(dev, | |
1852 | (is_write) ? DMA_TO_DEVICE : DMA_FROM_DEVICE, | |
1853 | iod); | |
1854 | nvme_free_iod(dev, iod); | |
e61b0a86 | 1855 | return -ENOMEM; |
5d0f6131 | 1856 | } |
edd10d33 KB |
1857 | c.rw.prp1 = cpu_to_le64(sg_dma_address(iod->sg)); |
1858 | c.rw.prp2 = cpu_to_le64(iod->first_dma); | |
5d0f6131 VV |
1859 | |
1860 | nvme_offset += unit_num_blocks; | |
1861 | ||
f705f837 | 1862 | nvme_sc = nvme_submit_sync_cmd(ns->queue, &c); |
e61b0a86 | 1863 | |
5d0f6131 VV |
1864 | nvme_unmap_user_pages(dev, |
1865 | (is_write) ? DMA_TO_DEVICE : DMA_FROM_DEVICE, | |
1866 | iod); | |
1867 | nvme_free_iod(dev, iod); | |
e61b0a86 CH |
1868 | |
1869 | ||
1870 | if (nvme_sc != NVME_SC_SUCCESS) | |
1871 | break; | |
5d0f6131 | 1872 | } |
5d0f6131 | 1873 | |
e61b0a86 | 1874 | return nvme_trans_status_code(hdr, nvme_sc); |
5d0f6131 VV |
1875 | } |
1876 | ||
1877 | ||
1878 | /* SCSI Command Translation Functions */ | |
1879 | ||
1880 | static int nvme_trans_io(struct nvme_ns *ns, struct sg_io_hdr *hdr, u8 is_write, | |
1881 | u8 *cmd) | |
1882 | { | |
e61b0a86 | 1883 | int res = 0; |
cbbb7a2e | 1884 | struct nvme_trans_io_cdb cdb_info = { 0, }; |
5d0f6131 VV |
1885 | u8 opcode = cmd[0]; |
1886 | u64 xfer_bytes; | |
1887 | u64 sum_iov_len = 0; | |
8741ee4c | 1888 | struct sg_iovec sgl; |
5d0f6131 | 1889 | int i; |
8741ee4c | 1890 | size_t not_copied; |
5d0f6131 | 1891 | |
cbbb7a2e CH |
1892 | /* |
1893 | * The FUA and WPROTECT fields are not supported in 6-byte CDBs, | |
1894 | * but always in the same place for all others. | |
1895 | */ | |
1896 | switch (opcode) { | |
1897 | case WRITE_6: | |
1898 | case READ_6: | |
1899 | break; | |
1900 | default: | |
1901 | cdb_info.fua = cmd[1] & 0x8; | |
1902 | cdb_info.prot_info = (cmd[1] & 0xe0) >> 5; | |
1903 | } | |
1904 | ||
5d0f6131 VV |
1905 | switch (opcode) { |
1906 | case WRITE_6: | |
1907 | case READ_6: | |
cbbb7a2e CH |
1908 | cdb_info.lba = get_unaligned_be24(&cmd[1]); |
1909 | cdb_info.xfer_len = cmd[4]; | |
1910 | if (cdb_info.xfer_len == 0) | |
1911 | cdb_info.xfer_len = 256; | |
5d0f6131 VV |
1912 | break; |
1913 | case WRITE_10: | |
1914 | case READ_10: | |
cbbb7a2e CH |
1915 | cdb_info.lba = get_unaligned_be32(&cmd[2]); |
1916 | cdb_info.xfer_len = get_unaligned_be16(&cmd[7]); | |
5d0f6131 VV |
1917 | break; |
1918 | case WRITE_12: | |
1919 | case READ_12: | |
cbbb7a2e CH |
1920 | cdb_info.lba = get_unaligned_be32(&cmd[2]); |
1921 | cdb_info.xfer_len = get_unaligned_be32(&cmd[6]); | |
5d0f6131 VV |
1922 | break; |
1923 | case WRITE_16: | |
1924 | case READ_16: | |
cbbb7a2e CH |
1925 | cdb_info.lba = get_unaligned_be64(&cmd[2]); |
1926 | cdb_info.xfer_len = get_unaligned_be32(&cmd[10]); | |
5d0f6131 VV |
1927 | break; |
1928 | default: | |
1929 | /* Will never really reach here */ | |
e61b0a86 | 1930 | res = -EIO; |
5d0f6131 VV |
1931 | goto out; |
1932 | } | |
1933 | ||
1934 | /* Calculate total length of transfer (in bytes) */ | |
1935 | if (hdr->iovec_count > 0) { | |
5d0f6131 | 1936 | for (i = 0; i < hdr->iovec_count; i++) { |
8741ee4c VV |
1937 | not_copied = copy_from_user(&sgl, hdr->dxferp + |
1938 | i * sizeof(struct sg_iovec), | |
1939 | sizeof(struct sg_iovec)); | |
1940 | if (not_copied) | |
1941 | return -EFAULT; | |
1942 | sum_iov_len += sgl.iov_len; | |
5d0f6131 | 1943 | /* IO vector sizes should be multiples of block size */ |
8741ee4c | 1944 | if (sgl.iov_len % (1 << ns->lba_shift) != 0) { |
5d0f6131 VV |
1945 | res = nvme_trans_completion(hdr, |
1946 | SAM_STAT_CHECK_CONDITION, | |
1947 | ILLEGAL_REQUEST, | |
1948 | SCSI_ASC_INVALID_PARAMETER, | |
1949 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
1950 | goto out; | |
1951 | } | |
1952 | } | |
1953 | } else { | |
1954 | sum_iov_len = hdr->dxfer_len; | |
1955 | } | |
1956 | ||
1957 | /* As Per sg ioctl howto, if the lengths differ, use the lower one */ | |
1958 | xfer_bytes = min(((u64)hdr->dxfer_len), sum_iov_len); | |
1959 | ||
1960 | /* If block count and actual data buffer size dont match, error out */ | |
1961 | if (xfer_bytes != (cdb_info.xfer_len << ns->lba_shift)) { | |
1962 | res = -EINVAL; | |
1963 | goto out; | |
1964 | } | |
1965 | ||
1966 | /* Check for 0 length transfer - it is not illegal */ | |
1967 | if (cdb_info.xfer_len == 0) | |
1968 | goto out; | |
1969 | ||
1970 | /* Send NVMe IO Command(s) */ | |
1971 | res = nvme_trans_do_nvme_io(ns, hdr, &cdb_info, is_write); | |
e61b0a86 | 1972 | if (res) |
5d0f6131 VV |
1973 | goto out; |
1974 | ||
1975 | out: | |
1976 | return res; | |
1977 | } | |
1978 | ||
1979 | static int nvme_trans_inquiry(struct nvme_ns *ns, struct sg_io_hdr *hdr, | |
1980 | u8 *cmd) | |
1981 | { | |
e61b0a86 | 1982 | int res = 0; |
5d0f6131 VV |
1983 | u8 evpd; |
1984 | u8 page_code; | |
1985 | int alloc_len; | |
1986 | u8 *inq_response; | |
1987 | ||
3726897e CH |
1988 | evpd = cmd[1] & 0x01; |
1989 | page_code = cmd[2]; | |
1990 | alloc_len = get_unaligned_be16(&cmd[3]); | |
5d0f6131 | 1991 | |
4f1982b4 | 1992 | inq_response = kmalloc(alloc_len, GFP_KERNEL); |
5d0f6131 VV |
1993 | if (inq_response == NULL) { |
1994 | res = -ENOMEM; | |
1995 | goto out_mem; | |
1996 | } | |
1997 | ||
1998 | if (evpd == 0) { | |
1999 | if (page_code == INQ_STANDARD_INQUIRY_PAGE) { | |
2000 | res = nvme_trans_standard_inquiry_page(ns, hdr, | |
2001 | inq_response, alloc_len); | |
2002 | } else { | |
2003 | res = nvme_trans_completion(hdr, | |
2004 | SAM_STAT_CHECK_CONDITION, | |
2005 | ILLEGAL_REQUEST, | |
2006 | SCSI_ASC_INVALID_CDB, | |
2007 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
2008 | } | |
2009 | } else { | |
2010 | switch (page_code) { | |
2011 | case VPD_SUPPORTED_PAGES: | |
2012 | res = nvme_trans_supported_vpd_pages(ns, hdr, | |
2013 | inq_response, alloc_len); | |
2014 | break; | |
2015 | case VPD_SERIAL_NUMBER: | |
2016 | res = nvme_trans_unit_serial_page(ns, hdr, inq_response, | |
2017 | alloc_len); | |
2018 | break; | |
2019 | case VPD_DEVICE_IDENTIFIERS: | |
2020 | res = nvme_trans_device_id_page(ns, hdr, inq_response, | |
2021 | alloc_len); | |
2022 | break; | |
2023 | case VPD_EXTENDED_INQUIRY: | |
2024 | res = nvme_trans_ext_inq_page(ns, hdr, alloc_len); | |
2025 | break; | |
7f749d9c KB |
2026 | case VPD_BLOCK_LIMITS: |
2027 | res = nvme_trans_bdev_limits_page(ns, hdr, inq_response, | |
2028 | alloc_len); | |
2029 | break; | |
5d0f6131 VV |
2030 | case VPD_BLOCK_DEV_CHARACTERISTICS: |
2031 | res = nvme_trans_bdev_char_page(ns, hdr, alloc_len); | |
2032 | break; | |
2033 | default: | |
2034 | res = nvme_trans_completion(hdr, | |
2035 | SAM_STAT_CHECK_CONDITION, | |
2036 | ILLEGAL_REQUEST, | |
2037 | SCSI_ASC_INVALID_CDB, | |
2038 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
2039 | break; | |
2040 | } | |
2041 | } | |
2042 | kfree(inq_response); | |
2043 | out_mem: | |
2044 | return res; | |
2045 | } | |
2046 | ||
2047 | static int nvme_trans_log_sense(struct nvme_ns *ns, struct sg_io_hdr *hdr, | |
2048 | u8 *cmd) | |
2049 | { | |
e61b0a86 | 2050 | int res; |
5d0f6131 | 2051 | u16 alloc_len; |
5d0f6131 VV |
2052 | u8 pc; |
2053 | u8 page_code; | |
2054 | ||
3726897e | 2055 | if (cmd[1] != LOG_SENSE_CDB_SP_NOT_ENABLED) { |
5d0f6131 VV |
2056 | res = nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION, |
2057 | ILLEGAL_REQUEST, SCSI_ASC_INVALID_CDB, | |
2058 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
2059 | goto out; | |
2060 | } | |
3726897e CH |
2061 | |
2062 | page_code = cmd[2] & LOG_SENSE_CDB_PAGE_CODE_MASK; | |
2063 | pc = (cmd[2] & LOG_SENSE_CDB_PC_MASK) >> LOG_SENSE_CDB_PC_SHIFT; | |
5d0f6131 VV |
2064 | if (pc != LOG_SENSE_CDB_PC_CUMULATIVE_VALUES) { |
2065 | res = nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION, | |
2066 | ILLEGAL_REQUEST, SCSI_ASC_INVALID_CDB, | |
2067 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
2068 | goto out; | |
2069 | } | |
3726897e | 2070 | alloc_len = get_unaligned_be16(&cmd[7]); |
5d0f6131 VV |
2071 | switch (page_code) { |
2072 | case LOG_PAGE_SUPPORTED_LOG_PAGES_PAGE: | |
2073 | res = nvme_trans_log_supp_pages(ns, hdr, alloc_len); | |
2074 | break; | |
2075 | case LOG_PAGE_INFORMATIONAL_EXCEPTIONS_PAGE: | |
2076 | res = nvme_trans_log_info_exceptions(ns, hdr, alloc_len); | |
2077 | break; | |
2078 | case LOG_PAGE_TEMPERATURE_PAGE: | |
2079 | res = nvme_trans_log_temperature(ns, hdr, alloc_len); | |
2080 | break; | |
2081 | default: | |
2082 | res = nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION, | |
2083 | ILLEGAL_REQUEST, SCSI_ASC_INVALID_CDB, | |
2084 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
2085 | break; | |
2086 | } | |
2087 | ||
2088 | out: | |
2089 | return res; | |
2090 | } | |
2091 | ||
2092 | static int nvme_trans_mode_select(struct nvme_ns *ns, struct sg_io_hdr *hdr, | |
2093 | u8 *cmd) | |
2094 | { | |
5d0f6131 VV |
2095 | u8 cdb10 = 0; |
2096 | u16 parm_list_len; | |
2097 | u8 page_format; | |
2098 | u8 save_pages; | |
2099 | ||
3726897e CH |
2100 | page_format = cmd[1] & MODE_SELECT_CDB_PAGE_FORMAT_MASK; |
2101 | save_pages = cmd[1] & MODE_SELECT_CDB_SAVE_PAGES_MASK; | |
5d0f6131 | 2102 | |
3726897e CH |
2103 | if (cmd[0] == MODE_SELECT) { |
2104 | parm_list_len = cmd[4]; | |
5d0f6131 | 2105 | } else { |
3726897e | 2106 | parm_list_len = cmd[7]; |
5d0f6131 VV |
2107 | cdb10 = 1; |
2108 | } | |
2109 | ||
2110 | if (parm_list_len != 0) { | |
2111 | /* | |
2112 | * According to SPC-4 r24, a paramter list length field of 0 | |
2113 | * shall not be considered an error | |
2114 | */ | |
e61b0a86 | 2115 | return nvme_trans_modesel_data(ns, hdr, cmd, parm_list_len, |
5d0f6131 VV |
2116 | page_format, save_pages, cdb10); |
2117 | } | |
2118 | ||
e61b0a86 | 2119 | return 0; |
5d0f6131 VV |
2120 | } |
2121 | ||
2122 | static int nvme_trans_mode_sense(struct nvme_ns *ns, struct sg_io_hdr *hdr, | |
2123 | u8 *cmd) | |
2124 | { | |
e61b0a86 | 2125 | int res = 0; |
5d0f6131 VV |
2126 | u16 alloc_len; |
2127 | u8 cdb10 = 0; | |
5d0f6131 | 2128 | |
3726897e CH |
2129 | if (cmd[0] == MODE_SENSE) { |
2130 | alloc_len = cmd[4]; | |
5d0f6131 | 2131 | } else { |
3726897e | 2132 | alloc_len = get_unaligned_be16(&cmd[7]); |
5d0f6131 VV |
2133 | cdb10 = 1; |
2134 | } | |
2135 | ||
3726897e CH |
2136 | if ((cmd[2] & MODE_SENSE_PAGE_CONTROL_MASK) != |
2137 | MODE_SENSE_PC_CURRENT_VALUES) { | |
5d0f6131 VV |
2138 | res = nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION, |
2139 | ILLEGAL_REQUEST, SCSI_ASC_INVALID_CDB, | |
2140 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
2141 | goto out; | |
2142 | } | |
2143 | ||
3726897e | 2144 | switch (cmd[2] & MODE_SENSE_PAGE_CODE_MASK) { |
5d0f6131 VV |
2145 | case MODE_PAGE_CACHING: |
2146 | res = nvme_trans_mode_page_create(ns, hdr, cmd, alloc_len, | |
2147 | cdb10, | |
2148 | &nvme_trans_fill_caching_page, | |
2149 | MODE_PAGE_CACHING_LEN); | |
2150 | break; | |
2151 | case MODE_PAGE_CONTROL: | |
2152 | res = nvme_trans_mode_page_create(ns, hdr, cmd, alloc_len, | |
2153 | cdb10, | |
2154 | &nvme_trans_fill_control_page, | |
2155 | MODE_PAGE_CONTROL_LEN); | |
2156 | break; | |
2157 | case MODE_PAGE_POWER_CONDITION: | |
2158 | res = nvme_trans_mode_page_create(ns, hdr, cmd, alloc_len, | |
2159 | cdb10, | |
2160 | &nvme_trans_fill_pow_cnd_page, | |
2161 | MODE_PAGE_POW_CND_LEN); | |
2162 | break; | |
2163 | case MODE_PAGE_INFO_EXCEP: | |
2164 | res = nvme_trans_mode_page_create(ns, hdr, cmd, alloc_len, | |
2165 | cdb10, | |
2166 | &nvme_trans_fill_inf_exc_page, | |
2167 | MODE_PAGE_INF_EXC_LEN); | |
2168 | break; | |
2169 | case MODE_PAGE_RETURN_ALL: | |
2170 | res = nvme_trans_mode_page_create(ns, hdr, cmd, alloc_len, | |
2171 | cdb10, | |
2172 | &nvme_trans_fill_all_pages, | |
2173 | MODE_PAGE_ALL_LEN); | |
2174 | break; | |
2175 | default: | |
2176 | res = nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION, | |
2177 | ILLEGAL_REQUEST, SCSI_ASC_INVALID_CDB, | |
2178 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
2179 | break; | |
2180 | } | |
2181 | ||
2182 | out: | |
2183 | return res; | |
2184 | } | |
2185 | ||
2186 | static int nvme_trans_read_capacity(struct nvme_ns *ns, struct sg_io_hdr *hdr, | |
3726897e | 2187 | u8 *cmd, u8 cdb16) |
5d0f6131 | 2188 | { |
e61b0a86 | 2189 | int res; |
5d0f6131 | 2190 | int nvme_sc; |
3726897e CH |
2191 | u32 alloc_len; |
2192 | u32 resp_size; | |
5d0f6131 | 2193 | u32 xfer_len; |
5d0f6131 VV |
2194 | struct nvme_dev *dev = ns->dev; |
2195 | dma_addr_t dma_addr; | |
2196 | void *mem; | |
2197 | struct nvme_id_ns *id_ns; | |
2198 | u8 *response; | |
2199 | ||
5d0f6131 | 2200 | if (cdb16) { |
3726897e | 2201 | alloc_len = get_unaligned_be32(&cmd[10]); |
5d0f6131 | 2202 | resp_size = READ_CAP_16_RESP_SIZE; |
3726897e CH |
2203 | } else { |
2204 | alloc_len = READ_CAP_10_RESP_SIZE; | |
2205 | resp_size = READ_CAP_10_RESP_SIZE; | |
5d0f6131 VV |
2206 | } |
2207 | ||
e75ec752 | 2208 | mem = dma_alloc_coherent(dev->dev, sizeof(struct nvme_id_ns), |
5d0f6131 VV |
2209 | &dma_addr, GFP_KERNEL); |
2210 | if (mem == NULL) { | |
2211 | res = -ENOMEM; | |
2212 | goto out; | |
2213 | } | |
2214 | /* nvme ns identify */ | |
2215 | nvme_sc = nvme_identify(dev, ns->ns_id, 0, dma_addr); | |
2216 | res = nvme_trans_status_code(hdr, nvme_sc); | |
2217 | if (res) | |
2218 | goto out_dma; | |
e61b0a86 | 2219 | |
5d0f6131 VV |
2220 | id_ns = mem; |
2221 | ||
03ea83e9 | 2222 | response = kzalloc(resp_size, GFP_KERNEL); |
5d0f6131 VV |
2223 | if (response == NULL) { |
2224 | res = -ENOMEM; | |
2225 | goto out_dma; | |
2226 | } | |
5d0f6131 VV |
2227 | nvme_trans_fill_read_cap(response, id_ns, cdb16); |
2228 | ||
2229 | xfer_len = min(alloc_len, resp_size); | |
2230 | res = nvme_trans_copy_to_user(hdr, response, xfer_len); | |
2231 | ||
2232 | kfree(response); | |
2233 | out_dma: | |
e75ec752 | 2234 | dma_free_coherent(dev->dev, sizeof(struct nvme_id_ns), mem, dma_addr); |
5d0f6131 VV |
2235 | out: |
2236 | return res; | |
2237 | } | |
2238 | ||
2239 | static int nvme_trans_report_luns(struct nvme_ns *ns, struct sg_io_hdr *hdr, | |
2240 | u8 *cmd) | |
2241 | { | |
e61b0a86 | 2242 | int res; |
5d0f6131 VV |
2243 | int nvme_sc; |
2244 | u32 alloc_len, xfer_len, resp_size; | |
5d0f6131 VV |
2245 | u8 *response; |
2246 | struct nvme_dev *dev = ns->dev; | |
2247 | dma_addr_t dma_addr; | |
2248 | void *mem; | |
2249 | struct nvme_id_ctrl *id_ctrl; | |
2250 | u32 ll_length, lun_id; | |
2251 | u8 lun_id_offset = REPORT_LUNS_FIRST_LUN_OFFSET; | |
8741ee4c | 2252 | __be32 tmp_len; |
5d0f6131 | 2253 | |
3726897e CH |
2254 | switch (cmd[2]) { |
2255 | default: | |
2256 | return nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION, | |
5d0f6131 VV |
2257 | ILLEGAL_REQUEST, SCSI_ASC_INVALID_CDB, |
2258 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
3726897e CH |
2259 | case ALL_LUNS_RETURNED: |
2260 | case ALL_WELL_KNOWN_LUNS_RETURNED: | |
2261 | case RESTRICTED_LUNS_RETURNED: | |
5d0f6131 | 2262 | /* NVMe Controller Identify */ |
e75ec752 | 2263 | mem = dma_alloc_coherent(dev->dev, sizeof(struct nvme_id_ctrl), |
5d0f6131 VV |
2264 | &dma_addr, GFP_KERNEL); |
2265 | if (mem == NULL) { | |
2266 | res = -ENOMEM; | |
2267 | goto out; | |
2268 | } | |
2269 | nvme_sc = nvme_identify(dev, 0, 1, dma_addr); | |
2270 | res = nvme_trans_status_code(hdr, nvme_sc); | |
2271 | if (res) | |
2272 | goto out_dma; | |
e61b0a86 | 2273 | |
5d0f6131 | 2274 | id_ctrl = mem; |
8741ee4c | 2275 | ll_length = le32_to_cpu(id_ctrl->nn) * LUN_ENTRY_SIZE; |
5d0f6131 VV |
2276 | resp_size = ll_length + LUN_DATA_HEADER_SIZE; |
2277 | ||
3726897e | 2278 | alloc_len = get_unaligned_be32(&cmd[6]); |
5d0f6131 VV |
2279 | if (alloc_len < resp_size) { |
2280 | res = nvme_trans_completion(hdr, | |
2281 | SAM_STAT_CHECK_CONDITION, | |
2282 | ILLEGAL_REQUEST, SCSI_ASC_INVALID_CDB, | |
2283 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
2284 | goto out_dma; | |
2285 | } | |
2286 | ||
03ea83e9 | 2287 | response = kzalloc(resp_size, GFP_KERNEL); |
5d0f6131 VV |
2288 | if (response == NULL) { |
2289 | res = -ENOMEM; | |
2290 | goto out_dma; | |
2291 | } | |
5d0f6131 VV |
2292 | |
2293 | /* The first LUN ID will always be 0 per the SAM spec */ | |
8741ee4c | 2294 | for (lun_id = 0; lun_id < le32_to_cpu(id_ctrl->nn); lun_id++) { |
5d0f6131 VV |
2295 | /* |
2296 | * Set the LUN Id and then increment to the next LUN | |
2297 | * location in the parameter data. | |
2298 | */ | |
8741ee4c | 2299 | __be64 tmp_id = cpu_to_be64(lun_id); |
5d0f6131 VV |
2300 | memcpy(&response[lun_id_offset], &tmp_id, sizeof(u64)); |
2301 | lun_id_offset += LUN_ENTRY_SIZE; | |
2302 | } | |
2303 | tmp_len = cpu_to_be32(ll_length); | |
2304 | memcpy(response, &tmp_len, sizeof(u32)); | |
2305 | } | |
2306 | ||
2307 | xfer_len = min(alloc_len, resp_size); | |
2308 | res = nvme_trans_copy_to_user(hdr, response, xfer_len); | |
2309 | ||
2310 | kfree(response); | |
2311 | out_dma: | |
e75ec752 | 2312 | dma_free_coherent(dev->dev, sizeof(struct nvme_id_ctrl), mem, dma_addr); |
5d0f6131 VV |
2313 | out: |
2314 | return res; | |
2315 | } | |
2316 | ||
2317 | static int nvme_trans_request_sense(struct nvme_ns *ns, struct sg_io_hdr *hdr, | |
2318 | u8 *cmd) | |
2319 | { | |
e61b0a86 | 2320 | int res; |
5d0f6131 VV |
2321 | u8 alloc_len, xfer_len, resp_size; |
2322 | u8 desc_format; | |
2323 | u8 *response; | |
2324 | ||
3726897e CH |
2325 | desc_format = cmd[1] & 0x01; |
2326 | alloc_len = cmd[4]; | |
5d0f6131 VV |
2327 | |
2328 | resp_size = ((desc_format) ? (DESC_FMT_SENSE_DATA_SIZE) : | |
2329 | (FIXED_FMT_SENSE_DATA_SIZE)); | |
03ea83e9 | 2330 | response = kzalloc(resp_size, GFP_KERNEL); |
5d0f6131 VV |
2331 | if (response == NULL) { |
2332 | res = -ENOMEM; | |
2333 | goto out; | |
2334 | } | |
5d0f6131 | 2335 | |
3726897e | 2336 | if (desc_format) { |
5d0f6131 VV |
2337 | /* Descriptor Format Sense Data */ |
2338 | response[0] = DESC_FORMAT_SENSE_DATA; | |
2339 | response[1] = NO_SENSE; | |
2340 | /* TODO How is LOW POWER CONDITION ON handled? (byte 2) */ | |
2341 | response[2] = SCSI_ASC_NO_SENSE; | |
2342 | response[3] = SCSI_ASCQ_CAUSE_NOT_REPORTABLE; | |
2343 | /* SDAT_OVFL = 0 | Additional Sense Length = 0 */ | |
2344 | } else { | |
2345 | /* Fixed Format Sense Data */ | |
2346 | response[0] = FIXED_SENSE_DATA; | |
2347 | /* Byte 1 = Obsolete */ | |
2348 | response[2] = NO_SENSE; /* FM, EOM, ILI, SDAT_OVFL = 0 */ | |
2349 | /* Bytes 3-6 - Information - set to zero */ | |
2350 | response[7] = FIXED_SENSE_DATA_ADD_LENGTH; | |
2351 | /* Bytes 8-11 - Cmd Specific Information - set to zero */ | |
2352 | response[12] = SCSI_ASC_NO_SENSE; | |
2353 | response[13] = SCSI_ASCQ_CAUSE_NOT_REPORTABLE; | |
2354 | /* Byte 14 = Field Replaceable Unit Code = 0 */ | |
2355 | /* Bytes 15-17 - SKSV=0; Sense Key Specific = 0 */ | |
2356 | } | |
2357 | ||
2358 | xfer_len = min(alloc_len, resp_size); | |
2359 | res = nvme_trans_copy_to_user(hdr, response, xfer_len); | |
2360 | ||
2361 | kfree(response); | |
2362 | out: | |
2363 | return res; | |
2364 | } | |
2365 | ||
2366 | static int nvme_trans_security_protocol(struct nvme_ns *ns, | |
2367 | struct sg_io_hdr *hdr, | |
2368 | u8 *cmd) | |
2369 | { | |
2370 | return nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION, | |
2371 | ILLEGAL_REQUEST, SCSI_ASC_ILLEGAL_COMMAND, | |
2372 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
2373 | } | |
2374 | ||
2375 | static int nvme_trans_start_stop(struct nvme_ns *ns, struct sg_io_hdr *hdr, | |
2376 | u8 *cmd) | |
2377 | { | |
e61b0a86 | 2378 | int res; |
5d0f6131 | 2379 | int nvme_sc; |
14385de1 | 2380 | struct nvme_command c; |
5d0f6131 VV |
2381 | u8 immed, pcmod, pc, no_flush, start; |
2382 | ||
3726897e CH |
2383 | immed = cmd[1] & 0x01; |
2384 | pcmod = cmd[3] & 0x0f; | |
2385 | pc = (cmd[4] & 0xf0) >> 4; | |
2386 | no_flush = cmd[4] & 0x04; | |
2387 | start = cmd[4] & 0x01; | |
5d0f6131 VV |
2388 | |
2389 | if (immed != 0) { | |
e61b0a86 | 2390 | return nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION, |
5d0f6131 VV |
2391 | ILLEGAL_REQUEST, SCSI_ASC_INVALID_CDB, |
2392 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
2393 | } else { | |
2394 | if (no_flush == 0) { | |
2395 | /* Issue NVME FLUSH command prior to START STOP UNIT */ | |
14385de1 KB |
2396 | memset(&c, 0, sizeof(c)); |
2397 | c.common.opcode = nvme_cmd_flush; | |
2398 | c.common.nsid = cpu_to_le32(ns->ns_id); | |
2399 | ||
f705f837 | 2400 | nvme_sc = nvme_submit_sync_cmd(ns->queue, &c); |
5d0f6131 VV |
2401 | res = nvme_trans_status_code(hdr, nvme_sc); |
2402 | if (res) | |
e61b0a86 | 2403 | return res; |
5d0f6131 VV |
2404 | } |
2405 | /* Setup the expected power state transition */ | |
e61b0a86 | 2406 | return nvme_trans_power_state(ns, hdr, pc, pcmod, start); |
5d0f6131 | 2407 | } |
5d0f6131 VV |
2408 | } |
2409 | ||
2410 | static int nvme_trans_synchronize_cache(struct nvme_ns *ns, | |
2411 | struct sg_io_hdr *hdr, u8 *cmd) | |
2412 | { | |
5d0f6131 | 2413 | int nvme_sc; |
14385de1 | 2414 | struct nvme_command c; |
14385de1 KB |
2415 | |
2416 | memset(&c, 0, sizeof(c)); | |
2417 | c.common.opcode = nvme_cmd_flush; | |
2418 | c.common.nsid = cpu_to_le32(ns->ns_id); | |
2419 | ||
f705f837 | 2420 | nvme_sc = nvme_submit_sync_cmd(ns->queue, &c); |
e61b0a86 | 2421 | return nvme_trans_status_code(hdr, nvme_sc); |
5d0f6131 VV |
2422 | } |
2423 | ||
2424 | static int nvme_trans_format_unit(struct nvme_ns *ns, struct sg_io_hdr *hdr, | |
2425 | u8 *cmd) | |
2426 | { | |
e61b0a86 | 2427 | int res; |
5d0f6131 VV |
2428 | u8 parm_hdr_len = 0; |
2429 | u8 nvme_pf_code = 0; | |
2430 | u8 format_prot_info, long_list, format_data; | |
2431 | ||
3726897e CH |
2432 | format_prot_info = (cmd[1] & 0xc0) >> 6; |
2433 | long_list = cmd[1] & 0x20; | |
2434 | format_data = cmd[1] & 0x10; | |
5d0f6131 VV |
2435 | |
2436 | if (format_data != 0) { | |
2437 | if (format_prot_info != 0) { | |
2438 | if (long_list == 0) | |
2439 | parm_hdr_len = FORMAT_UNIT_SHORT_PARM_LIST_LEN; | |
2440 | else | |
2441 | parm_hdr_len = FORMAT_UNIT_LONG_PARM_LIST_LEN; | |
2442 | } | |
2443 | } else if (format_data == 0 && format_prot_info != 0) { | |
2444 | res = nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION, | |
2445 | ILLEGAL_REQUEST, SCSI_ASC_INVALID_CDB, | |
2446 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
2447 | goto out; | |
2448 | } | |
2449 | ||
2450 | /* Get parm header from data-in/out buffer */ | |
2451 | /* | |
2452 | * According to the translation spec, the only fields in the parameter | |
2453 | * list we are concerned with are in the header. So allocate only that. | |
2454 | */ | |
2455 | if (parm_hdr_len > 0) { | |
2456 | res = nvme_trans_fmt_get_parm_header(hdr, parm_hdr_len, | |
2457 | format_prot_info, &nvme_pf_code); | |
e61b0a86 | 2458 | if (res) |
5d0f6131 VV |
2459 | goto out; |
2460 | } | |
2461 | ||
2462 | /* Attempt to activate any previously downloaded firmware image */ | |
b90c48d0 | 2463 | res = nvme_trans_send_activate_fw_cmd(ns, hdr, 0); |
5d0f6131 VV |
2464 | |
2465 | /* Determine Block size and count and send format command */ | |
2466 | res = nvme_trans_fmt_set_blk_size_count(ns, hdr); | |
e61b0a86 | 2467 | if (res) |
5d0f6131 VV |
2468 | goto out; |
2469 | ||
2470 | res = nvme_trans_fmt_send_cmd(ns, hdr, nvme_pf_code); | |
2471 | ||
2472 | out: | |
2473 | return res; | |
2474 | } | |
2475 | ||
2476 | static int nvme_trans_test_unit_ready(struct nvme_ns *ns, | |
2477 | struct sg_io_hdr *hdr, | |
2478 | u8 *cmd) | |
2479 | { | |
5d0f6131 VV |
2480 | struct nvme_dev *dev = ns->dev; |
2481 | ||
2482 | if (!(readl(&dev->bar->csts) & NVME_CSTS_RDY)) | |
e61b0a86 | 2483 | return nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION, |
5d0f6131 VV |
2484 | NOT_READY, SCSI_ASC_LUN_NOT_READY, |
2485 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
2486 | else | |
e61b0a86 | 2487 | return nvme_trans_completion(hdr, SAM_STAT_GOOD, NO_SENSE, 0, 0); |
5d0f6131 VV |
2488 | } |
2489 | ||
2490 | static int nvme_trans_write_buffer(struct nvme_ns *ns, struct sg_io_hdr *hdr, | |
2491 | u8 *cmd) | |
2492 | { | |
e61b0a86 | 2493 | int res = 0; |
5d0f6131 VV |
2494 | u32 buffer_offset, parm_list_length; |
2495 | u8 buffer_id, mode; | |
2496 | ||
3726897e | 2497 | parm_list_length = get_unaligned_be24(&cmd[6]); |
5d0f6131 VV |
2498 | if (parm_list_length % BYTES_TO_DWORDS != 0) { |
2499 | /* NVMe expects Firmware file to be a whole number of DWORDS */ | |
2500 | res = nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION, | |
2501 | ILLEGAL_REQUEST, SCSI_ASC_INVALID_CDB, | |
2502 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
2503 | goto out; | |
2504 | } | |
3726897e | 2505 | buffer_id = cmd[2]; |
5d0f6131 VV |
2506 | if (buffer_id > NVME_MAX_FIRMWARE_SLOT) { |
2507 | res = nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION, | |
2508 | ILLEGAL_REQUEST, SCSI_ASC_INVALID_CDB, | |
2509 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
2510 | goto out; | |
2511 | } | |
3726897e CH |
2512 | mode = cmd[1] & 0x1f; |
2513 | buffer_offset = get_unaligned_be24(&cmd[3]); | |
5d0f6131 VV |
2514 | |
2515 | switch (mode) { | |
2516 | case DOWNLOAD_SAVE_ACTIVATE: | |
b90c48d0 | 2517 | res = nvme_trans_send_download_fw_cmd(ns, hdr, nvme_admin_download_fw, |
5d0f6131 VV |
2518 | parm_list_length, buffer_offset, |
2519 | buffer_id); | |
e61b0a86 | 2520 | if (res) |
5d0f6131 | 2521 | goto out; |
b90c48d0 | 2522 | res = nvme_trans_send_activate_fw_cmd(ns, hdr, buffer_id); |
5d0f6131 VV |
2523 | break; |
2524 | case DOWNLOAD_SAVE_DEFER_ACTIVATE: | |
b90c48d0 | 2525 | res = nvme_trans_send_download_fw_cmd(ns, hdr, nvme_admin_download_fw, |
5d0f6131 VV |
2526 | parm_list_length, buffer_offset, |
2527 | buffer_id); | |
2528 | break; | |
2529 | case ACTIVATE_DEFERRED_MICROCODE: | |
b90c48d0 | 2530 | res = nvme_trans_send_activate_fw_cmd(ns, hdr, buffer_id); |
5d0f6131 VV |
2531 | break; |
2532 | default: | |
2533 | res = nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION, | |
2534 | ILLEGAL_REQUEST, SCSI_ASC_INVALID_CDB, | |
2535 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
2536 | break; | |
2537 | } | |
2538 | ||
2539 | out: | |
2540 | return res; | |
2541 | } | |
2542 | ||
ec503733 KB |
2543 | struct scsi_unmap_blk_desc { |
2544 | __be64 slba; | |
2545 | __be32 nlb; | |
2546 | u32 resv; | |
2547 | }; | |
2548 | ||
2549 | struct scsi_unmap_parm_list { | |
2550 | __be16 unmap_data_len; | |
2551 | __be16 unmap_blk_desc_data_len; | |
2552 | u32 resv; | |
2553 | struct scsi_unmap_blk_desc desc[0]; | |
2554 | }; | |
2555 | ||
2556 | static int nvme_trans_unmap(struct nvme_ns *ns, struct sg_io_hdr *hdr, | |
2557 | u8 *cmd) | |
2558 | { | |
2559 | struct nvme_dev *dev = ns->dev; | |
2560 | struct scsi_unmap_parm_list *plist; | |
2561 | struct nvme_dsm_range *range; | |
ec503733 KB |
2562 | struct nvme_command c; |
2563 | int i, nvme_sc, res = -ENOMEM; | |
2564 | u16 ndesc, list_len; | |
2565 | dma_addr_t dma_addr; | |
2566 | ||
3726897e | 2567 | list_len = get_unaligned_be16(&cmd[7]); |
ec503733 KB |
2568 | if (!list_len) |
2569 | return -EINVAL; | |
2570 | ||
2571 | plist = kmalloc(list_len, GFP_KERNEL); | |
2572 | if (!plist) | |
2573 | return -ENOMEM; | |
2574 | ||
2575 | res = nvme_trans_copy_from_user(hdr, plist, list_len); | |
e61b0a86 | 2576 | if (res) |
ec503733 KB |
2577 | goto out; |
2578 | ||
2579 | ndesc = be16_to_cpu(plist->unmap_blk_desc_data_len) >> 4; | |
2580 | if (!ndesc || ndesc > 256) { | |
2581 | res = -EINVAL; | |
2582 | goto out; | |
2583 | } | |
2584 | ||
e75ec752 | 2585 | range = dma_alloc_coherent(dev->dev, ndesc * sizeof(*range), |
ec503733 KB |
2586 | &dma_addr, GFP_KERNEL); |
2587 | if (!range) | |
2588 | goto out; | |
2589 | ||
2590 | for (i = 0; i < ndesc; i++) { | |
2591 | range[i].nlb = cpu_to_le32(be32_to_cpu(plist->desc[i].nlb)); | |
2592 | range[i].slba = cpu_to_le64(be64_to_cpu(plist->desc[i].slba)); | |
2593 | range[i].cattr = 0; | |
2594 | } | |
2595 | ||
2596 | memset(&c, 0, sizeof(c)); | |
2597 | c.dsm.opcode = nvme_cmd_dsm; | |
2598 | c.dsm.nsid = cpu_to_le32(ns->ns_id); | |
2599 | c.dsm.prp1 = cpu_to_le64(dma_addr); | |
2600 | c.dsm.nr = cpu_to_le32(ndesc - 1); | |
2601 | c.dsm.attributes = cpu_to_le32(NVME_DSMGMT_AD); | |
2602 | ||
f705f837 | 2603 | nvme_sc = nvme_submit_sync_cmd(ns->queue, &c); |
ec503733 KB |
2604 | res = nvme_trans_status_code(hdr, nvme_sc); |
2605 | ||
e75ec752 | 2606 | dma_free_coherent(dev->dev, ndesc * sizeof(*range), range, dma_addr); |
ec503733 KB |
2607 | out: |
2608 | kfree(plist); | |
2609 | return res; | |
2610 | } | |
2611 | ||
5d0f6131 VV |
2612 | static int nvme_scsi_translate(struct nvme_ns *ns, struct sg_io_hdr *hdr) |
2613 | { | |
2614 | u8 cmd[BLK_MAX_CDB]; | |
2615 | int retcode; | |
2616 | unsigned int opcode; | |
2617 | ||
2618 | if (hdr->cmdp == NULL) | |
2619 | return -EMSGSIZE; | |
2620 | if (copy_from_user(cmd, hdr->cmdp, hdr->cmd_len)) | |
2621 | return -EFAULT; | |
2622 | ||
695a4fe7 KB |
2623 | /* |
2624 | * Prime the hdr with good status for scsi commands that don't require | |
2625 | * an nvme command for translation. | |
2626 | */ | |
2627 | retcode = nvme_trans_status_code(hdr, NVME_SC_SUCCESS); | |
2628 | if (retcode) | |
2629 | return retcode; | |
2630 | ||
5d0f6131 VV |
2631 | opcode = cmd[0]; |
2632 | ||
2633 | switch (opcode) { | |
2634 | case READ_6: | |
2635 | case READ_10: | |
2636 | case READ_12: | |
2637 | case READ_16: | |
2638 | retcode = nvme_trans_io(ns, hdr, 0, cmd); | |
2639 | break; | |
2640 | case WRITE_6: | |
2641 | case WRITE_10: | |
2642 | case WRITE_12: | |
2643 | case WRITE_16: | |
2644 | retcode = nvme_trans_io(ns, hdr, 1, cmd); | |
2645 | break; | |
2646 | case INQUIRY: | |
2647 | retcode = nvme_trans_inquiry(ns, hdr, cmd); | |
2648 | break; | |
2649 | case LOG_SENSE: | |
2650 | retcode = nvme_trans_log_sense(ns, hdr, cmd); | |
2651 | break; | |
2652 | case MODE_SELECT: | |
2653 | case MODE_SELECT_10: | |
2654 | retcode = nvme_trans_mode_select(ns, hdr, cmd); | |
2655 | break; | |
2656 | case MODE_SENSE: | |
2657 | case MODE_SENSE_10: | |
2658 | retcode = nvme_trans_mode_sense(ns, hdr, cmd); | |
2659 | break; | |
2660 | case READ_CAPACITY: | |
3726897e | 2661 | retcode = nvme_trans_read_capacity(ns, hdr, cmd, 0); |
5d0f6131 | 2662 | break; |
eb846d9f | 2663 | case SERVICE_ACTION_IN_16: |
3726897e CH |
2664 | switch (cmd[1]) { |
2665 | case SAI_READ_CAPACITY_16: | |
2666 | retcode = nvme_trans_read_capacity(ns, hdr, cmd, 1); | |
2667 | break; | |
2668 | default: | |
5d0f6131 | 2669 | goto out; |
3726897e | 2670 | } |
5d0f6131 VV |
2671 | break; |
2672 | case REPORT_LUNS: | |
2673 | retcode = nvme_trans_report_luns(ns, hdr, cmd); | |
2674 | break; | |
2675 | case REQUEST_SENSE: | |
2676 | retcode = nvme_trans_request_sense(ns, hdr, cmd); | |
2677 | break; | |
2678 | case SECURITY_PROTOCOL_IN: | |
2679 | case SECURITY_PROTOCOL_OUT: | |
2680 | retcode = nvme_trans_security_protocol(ns, hdr, cmd); | |
2681 | break; | |
2682 | case START_STOP: | |
2683 | retcode = nvme_trans_start_stop(ns, hdr, cmd); | |
2684 | break; | |
2685 | case SYNCHRONIZE_CACHE: | |
2686 | retcode = nvme_trans_synchronize_cache(ns, hdr, cmd); | |
2687 | break; | |
2688 | case FORMAT_UNIT: | |
2689 | retcode = nvme_trans_format_unit(ns, hdr, cmd); | |
2690 | break; | |
2691 | case TEST_UNIT_READY: | |
2692 | retcode = nvme_trans_test_unit_ready(ns, hdr, cmd); | |
2693 | break; | |
2694 | case WRITE_BUFFER: | |
2695 | retcode = nvme_trans_write_buffer(ns, hdr, cmd); | |
2696 | break; | |
ec503733 KB |
2697 | case UNMAP: |
2698 | retcode = nvme_trans_unmap(ns, hdr, cmd); | |
2699 | break; | |
5d0f6131 VV |
2700 | default: |
2701 | out: | |
2702 | retcode = nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION, | |
2703 | ILLEGAL_REQUEST, SCSI_ASC_ILLEGAL_COMMAND, | |
2704 | SCSI_ASCQ_CAUSE_NOT_REPORTABLE); | |
2705 | break; | |
2706 | } | |
2707 | return retcode; | |
2708 | } | |
2709 | ||
2710 | int nvme_sg_io(struct nvme_ns *ns, struct sg_io_hdr __user *u_hdr) | |
2711 | { | |
2712 | struct sg_io_hdr hdr; | |
2713 | int retcode; | |
2714 | ||
2715 | if (!capable(CAP_SYS_ADMIN)) | |
2716 | return -EACCES; | |
2717 | if (copy_from_user(&hdr, u_hdr, sizeof(hdr))) | |
2718 | return -EFAULT; | |
2719 | if (hdr.interface_id != 'S') | |
2720 | return -EINVAL; | |
2721 | if (hdr.cmd_len > BLK_MAX_CDB) | |
2722 | return -EINVAL; | |
2723 | ||
e61b0a86 CH |
2724 | /* |
2725 | * A positive return code means a NVMe status, which has been | |
2726 | * translated to sense data. | |
2727 | */ | |
5d0f6131 VV |
2728 | retcode = nvme_scsi_translate(ns, &hdr); |
2729 | if (retcode < 0) | |
2730 | return retcode; | |
8741ee4c | 2731 | if (copy_to_user(u_hdr, &hdr, sizeof(sg_io_hdr_t)) > 0) |
5d0f6131 | 2732 | return -EFAULT; |
e61b0a86 | 2733 | return 0; |
5d0f6131 VV |
2734 | } |
2735 | ||
2736 | int nvme_sg_get_version_num(int __user *ip) | |
2737 | { | |
2738 | return put_user(sg_version_num, ip); | |
2739 | } |