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Commit | Line | Data |
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2e5d83bb PB |
1 | /* |
2 | * SCSI Device emulation | |
3 | * | |
4 | * Copyright (c) 2006 CodeSourcery. | |
5 | * Based on code by Fabrice Bellard | |
6 | * | |
7 | * Written by Paul Brook | |
ad3cea42 AT |
8 | * Modifications: |
9 | * 2009-Dec-12 Artyom Tarasenko : implemented stamdard inquiry for the case | |
10 | * when the allocation length of CDB is smaller | |
11 | * than 36. | |
12 | * 2009-Oct-13 Artyom Tarasenko : implemented the block descriptor in the | |
13 | * MODE SENSE response. | |
2e5d83bb | 14 | * |
8e31bf38 | 15 | * This code is licensed under the LGPL. |
a917d384 PB |
16 | * |
17 | * Note that this file only handles the SCSI architecture model and device | |
1d4db89c AZ |
18 | * commands. Emulation of interface/link layer protocols is handled by |
19 | * the host adapter emulator. | |
2e5d83bb PB |
20 | */ |
21 | ||
22 | //#define DEBUG_SCSI | |
23 | ||
24 | #ifdef DEBUG_SCSI | |
001faf32 BS |
25 | #define DPRINTF(fmt, ...) \ |
26 | do { printf("scsi-disk: " fmt , ## __VA_ARGS__); } while (0) | |
2e5d83bb | 27 | #else |
001faf32 | 28 | #define DPRINTF(fmt, ...) do {} while(0) |
2e5d83bb PB |
29 | #endif |
30 | ||
001faf32 BS |
31 | #define BADF(fmt, ...) \ |
32 | do { fprintf(stderr, "scsi-disk: " fmt , ## __VA_ARGS__); } while (0) | |
2e5d83bb | 33 | |
87ecb68b | 34 | #include "qemu-common.h" |
2f792016 | 35 | #include "qemu-error.h" |
43b443b6 | 36 | #include "scsi.h" |
0d65e1f8 | 37 | #include "scsi-defs.h" |
666daa68 | 38 | #include "sysemu.h" |
2446333c | 39 | #include "blockdev.h" |
d1a0739d | 40 | #include "block_int.h" |
22864256 | 41 | |
336a6915 PB |
42 | #ifdef __linux |
43 | #include <scsi/sg.h> | |
44 | #endif | |
45 | ||
f0f72ffe | 46 | #define SCSI_DMA_BUF_SIZE 131072 |
57575058 | 47 | #define SCSI_MAX_INQUIRY_LEN 256 |
a917d384 | 48 | |
d52affa7 GH |
49 | typedef struct SCSIDiskState SCSIDiskState; |
50 | ||
4c41d2ef GH |
51 | typedef struct SCSIDiskReq { |
52 | SCSIRequest req; | |
a917d384 | 53 | /* Both sector and sector_count are in terms of qemu 512 byte blocks. */ |
e035b43d AL |
54 | uint64_t sector; |
55 | uint32_t sector_count; | |
7285477a | 56 | uint32_t buflen; |
c87c0672 AL |
57 | struct iovec iov; |
58 | QEMUIOVector qiov; | |
a597e79c | 59 | BlockAcctCookie acct; |
4c41d2ef | 60 | } SCSIDiskReq; |
a917d384 | 61 | |
d52affa7 | 62 | struct SCSIDiskState |
a917d384 | 63 | { |
d52affa7 | 64 | SCSIDevice qdev; |
419e691f | 65 | uint32_t removable; |
8a9c16f6 | 66 | bool media_changed; |
3c2f7c12 | 67 | bool media_event; |
4480de19 | 68 | bool eject_request; |
213189ab | 69 | QEMUBH *bh; |
383b4d9b | 70 | char *version; |
a0fef654 | 71 | char *serial; |
ece0d5e9 | 72 | bool tray_open; |
81b1008d | 73 | bool tray_locked; |
2e5d83bb PB |
74 | }; |
75 | ||
71544d30 | 76 | static int scsi_handle_rw_error(SCSIDiskReq *r, int error); |
5dba48a8 | 77 | |
ad2d30f7 | 78 | static void scsi_free_request(SCSIRequest *req) |
4d611c9a | 79 | { |
ad2d30f7 PB |
80 | SCSIDiskReq *r = DO_UPCAST(SCSIDiskReq, req, req); |
81 | ||
7285477a PB |
82 | if (r->iov.iov_base) { |
83 | qemu_vfree(r->iov.iov_base); | |
84 | } | |
4d611c9a PB |
85 | } |
86 | ||
b45ef674 PB |
87 | /* Helper function for command completion with sense. */ |
88 | static void scsi_check_condition(SCSIDiskReq *r, SCSISense sense) | |
ed3a34a3 | 89 | { |
02fa69b6 BS |
90 | DPRINTF("Command complete tag=0x%x sense=%d/%d/%d\n", |
91 | r->req.tag, sense.key, sense.asc, sense.ascq); | |
b45ef674 PB |
92 | scsi_req_build_sense(&r->req, sense); |
93 | scsi_req_complete(&r->req, CHECK_CONDITION); | |
4d611c9a PB |
94 | } |
95 | ||
96 | /* Cancel a pending data transfer. */ | |
5c6c0e51 | 97 | static void scsi_cancel_io(SCSIRequest *req) |
4d611c9a | 98 | { |
5c6c0e51 HR |
99 | SCSIDiskReq *r = DO_UPCAST(SCSIDiskReq, req, req); |
100 | ||
101 | DPRINTF("Cancel tag=0x%x\n", req->tag); | |
102 | if (r->req.aiocb) { | |
103 | bdrv_aio_cancel(r->req.aiocb); | |
c7bae6a7 PB |
104 | |
105 | /* This reference was left in by scsi_*_data. We take ownership of | |
106 | * it the moment scsi_req_cancel is called, independent of whether | |
107 | * bdrv_aio_cancel completes the request or not. */ | |
108 | scsi_req_unref(&r->req); | |
a917d384 | 109 | } |
5c6c0e51 | 110 | r->req.aiocb = NULL; |
a917d384 PB |
111 | } |
112 | ||
103b40f5 PB |
113 | static uint32_t scsi_init_iovec(SCSIDiskReq *r) |
114 | { | |
7285477a PB |
115 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); |
116 | ||
117 | if (!r->iov.iov_base) { | |
118 | r->buflen = SCSI_DMA_BUF_SIZE; | |
44740c38 | 119 | r->iov.iov_base = qemu_blockalign(s->qdev.conf.bs, r->buflen); |
7285477a PB |
120 | } |
121 | r->iov.iov_len = MIN(r->sector_count * 512, r->buflen); | |
103b40f5 PB |
122 | qemu_iovec_init_external(&r->qiov, &r->iov, 1); |
123 | return r->qiov.size / 512; | |
124 | } | |
125 | ||
a917d384 PB |
126 | static void scsi_read_complete(void * opaque, int ret) |
127 | { | |
4c41d2ef | 128 | SCSIDiskReq *r = (SCSIDiskReq *)opaque; |
a597e79c | 129 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); |
5dba48a8 | 130 | int n; |
a917d384 | 131 | |
8e321cc6 PB |
132 | if (r->req.aiocb != NULL) { |
133 | r->req.aiocb = NULL; | |
44740c38 | 134 | bdrv_acct_done(s->qdev.conf.bs, &r->acct); |
8e321cc6 | 135 | } |
a597e79c | 136 | |
a917d384 | 137 | if (ret) { |
71544d30 | 138 | if (scsi_handle_rw_error(r, -ret)) { |
c7bae6a7 | 139 | goto done; |
5dba48a8 | 140 | } |
4d611c9a | 141 | } |
5dba48a8 | 142 | |
103b40f5 | 143 | DPRINTF("Data ready tag=0x%x len=%zd\n", r->req.tag, r->qiov.size); |
a917d384 | 144 | |
103b40f5 | 145 | n = r->qiov.size / 512; |
5dba48a8 KW |
146 | r->sector += n; |
147 | r->sector_count -= n; | |
103b40f5 | 148 | scsi_req_data(&r->req, r->qiov.size); |
c7bae6a7 PB |
149 | |
150 | done: | |
151 | if (!r->req.io_canceled) { | |
152 | scsi_req_unref(&r->req); | |
153 | } | |
4d611c9a PB |
154 | } |
155 | ||
0a4ac106 PB |
156 | static void scsi_flush_complete(void * opaque, int ret) |
157 | { | |
158 | SCSIDiskReq *r = (SCSIDiskReq *)opaque; | |
159 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); | |
160 | ||
161 | if (r->req.aiocb != NULL) { | |
162 | r->req.aiocb = NULL; | |
44740c38 | 163 | bdrv_acct_done(s->qdev.conf.bs, &r->acct); |
0a4ac106 PB |
164 | } |
165 | ||
166 | if (ret < 0) { | |
71544d30 | 167 | if (scsi_handle_rw_error(r, -ret)) { |
c7bae6a7 | 168 | goto done; |
0a4ac106 PB |
169 | } |
170 | } | |
171 | ||
172 | scsi_req_complete(&r->req, GOOD); | |
c7bae6a7 PB |
173 | |
174 | done: | |
175 | if (!r->req.io_canceled) { | |
176 | scsi_req_unref(&r->req); | |
177 | } | |
0a4ac106 | 178 | } |
5dba48a8 | 179 | |
5c6c0e51 HR |
180 | /* Read more data from scsi device into buffer. */ |
181 | static void scsi_read_data(SCSIRequest *req) | |
2e5d83bb | 182 | { |
5c6c0e51 | 183 | SCSIDiskReq *r = DO_UPCAST(SCSIDiskReq, req, req); |
5dba48a8 | 184 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); |
2e5d83bb PB |
185 | uint32_t n; |
186 | ||
a917d384 | 187 | if (r->sector_count == (uint32_t)-1) { |
aa2b1e89 | 188 | DPRINTF("Read buf_len=%zd\n", r->iov.iov_len); |
a917d384 | 189 | r->sector_count = 0; |
ab9adc88 | 190 | scsi_req_data(&r->req, r->iov.iov_len); |
a917d384 | 191 | return; |
2e5d83bb | 192 | } |
a917d384 PB |
193 | DPRINTF("Read sector_count=%d\n", r->sector_count); |
194 | if (r->sector_count == 0) { | |
b45ef674 PB |
195 | /* This also clears the sense buffer for REQUEST SENSE. */ |
196 | scsi_req_complete(&r->req, GOOD); | |
a917d384 | 197 | return; |
2e5d83bb PB |
198 | } |
199 | ||
6fa2c95f SH |
200 | /* No data transfer may already be in progress */ |
201 | assert(r->req.aiocb == NULL); | |
202 | ||
c7bae6a7 PB |
203 | /* The request is used as the AIO opaque value, so add a ref. */ |
204 | scsi_req_ref(&r->req); | |
efb9ee02 HR |
205 | if (r->req.cmd.mode == SCSI_XFER_TO_DEV) { |
206 | DPRINTF("Data transfer direction invalid\n"); | |
207 | scsi_read_complete(r, -EINVAL); | |
208 | return; | |
209 | } | |
210 | ||
a1aff5bf MA |
211 | if (s->tray_open) { |
212 | scsi_read_complete(r, -ENOMEDIUM); | |
c7bae6a7 | 213 | return; |
a1aff5bf | 214 | } |
c7bae6a7 | 215 | |
103b40f5 | 216 | n = scsi_init_iovec(r); |
44740c38 PB |
217 | bdrv_acct_start(s->qdev.conf.bs, &r->acct, n * BDRV_SECTOR_SIZE, BDRV_ACCT_READ); |
218 | r->req.aiocb = bdrv_aio_readv(s->qdev.conf.bs, r->sector, &r->qiov, n, | |
c87c0672 | 219 | scsi_read_complete, r); |
d33ea50a KW |
220 | if (r->req.aiocb == NULL) { |
221 | scsi_read_complete(r, -EIO); | |
222 | } | |
2e5d83bb PB |
223 | } |
224 | ||
c7bae6a7 PB |
225 | /* |
226 | * scsi_handle_rw_error has two return values. 0 means that the error | |
227 | * must be ignored, 1 means that the error has been processed and the | |
228 | * caller should not do anything else for this request. Note that | |
229 | * scsi_handle_rw_error always manages its reference counts, independent | |
230 | * of the return value. | |
231 | */ | |
71544d30 | 232 | static int scsi_handle_rw_error(SCSIDiskReq *r, int error) |
5dba48a8 | 233 | { |
71544d30 | 234 | int is_read = (r->req.cmd.xfer == SCSI_XFER_FROM_DEV); |
4c41d2ef | 235 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); |
44740c38 | 236 | BlockErrorAction action = bdrv_get_on_error(s->qdev.conf.bs, is_read); |
ea8a5d7f | 237 | |
380f640f | 238 | if (action == BLOCK_ERR_IGNORE) { |
44740c38 | 239 | bdrv_mon_event(s->qdev.conf.bs, BDRV_ACTION_IGNORE, is_read); |
ea8a5d7f | 240 | return 0; |
380f640f | 241 | } |
ea8a5d7f AL |
242 | |
243 | if ((error == ENOSPC && action == BLOCK_ERR_STOP_ENOSPC) | |
244 | || action == BLOCK_ERR_STOP_ANY) { | |
5dba48a8 | 245 | |
44740c38 | 246 | bdrv_mon_event(s->qdev.conf.bs, BDRV_ACTION_STOP, is_read); |
0461d5a6 | 247 | vm_stop(RUN_STATE_IO_ERROR); |
44740c38 | 248 | bdrv_iostatus_set_err(s->qdev.conf.bs, error); |
71544d30 | 249 | scsi_req_retry(&r->req); |
ea8a5d7f | 250 | } else { |
efb9ee02 | 251 | switch (error) { |
7e218df5 PB |
252 | case ENOMEDIUM: |
253 | scsi_check_condition(r, SENSE_CODE(NO_MEDIUM)); | |
254 | break; | |
efb9ee02 | 255 | case ENOMEM: |
b45ef674 | 256 | scsi_check_condition(r, SENSE_CODE(TARGET_FAILURE)); |
efb9ee02 HR |
257 | break; |
258 | case EINVAL: | |
b45ef674 | 259 | scsi_check_condition(r, SENSE_CODE(INVALID_FIELD)); |
efb9ee02 HR |
260 | break; |
261 | default: | |
b45ef674 | 262 | scsi_check_condition(r, SENSE_CODE(IO_ERROR)); |
efb9ee02 | 263 | break; |
a1f0cce2 | 264 | } |
44740c38 | 265 | bdrv_mon_event(s->qdev.conf.bs, BDRV_ACTION_REPORT, is_read); |
ea8a5d7f | 266 | } |
ea8a5d7f AL |
267 | return 1; |
268 | } | |
269 | ||
4d611c9a PB |
270 | static void scsi_write_complete(void * opaque, int ret) |
271 | { | |
4c41d2ef | 272 | SCSIDiskReq *r = (SCSIDiskReq *)opaque; |
a597e79c | 273 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); |
ea8a5d7f AL |
274 | uint32_t n; |
275 | ||
8e321cc6 PB |
276 | if (r->req.aiocb != NULL) { |
277 | r->req.aiocb = NULL; | |
44740c38 | 278 | bdrv_acct_done(s->qdev.conf.bs, &r->acct); |
8e321cc6 | 279 | } |
a597e79c | 280 | |
4d611c9a | 281 | if (ret) { |
71544d30 | 282 | if (scsi_handle_rw_error(r, -ret)) { |
c7bae6a7 | 283 | goto done; |
5dba48a8 | 284 | } |
4d611c9a PB |
285 | } |
286 | ||
103b40f5 | 287 | n = r->qiov.size / 512; |
ea8a5d7f AL |
288 | r->sector += n; |
289 | r->sector_count -= n; | |
a917d384 | 290 | if (r->sector_count == 0) { |
b45ef674 | 291 | scsi_req_complete(&r->req, GOOD); |
a917d384 | 292 | } else { |
103b40f5 PB |
293 | scsi_init_iovec(r); |
294 | DPRINTF("Write complete tag=0x%x more=%d\n", r->req.tag, r->qiov.size); | |
295 | scsi_req_data(&r->req, r->qiov.size); | |
4d611c9a | 296 | } |
c7bae6a7 PB |
297 | |
298 | done: | |
299 | if (!r->req.io_canceled) { | |
300 | scsi_req_unref(&r->req); | |
301 | } | |
4d611c9a PB |
302 | } |
303 | ||
42741212 | 304 | static void scsi_write_data(SCSIRequest *req) |
ea8a5d7f | 305 | { |
5c6c0e51 | 306 | SCSIDiskReq *r = DO_UPCAST(SCSIDiskReq, req, req); |
4c41d2ef | 307 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); |
ea8a5d7f AL |
308 | uint32_t n; |
309 | ||
6fa2c95f SH |
310 | /* No data transfer may already be in progress */ |
311 | assert(r->req.aiocb == NULL); | |
312 | ||
c7bae6a7 PB |
313 | /* The request is used as the AIO opaque value, so add a ref. */ |
314 | scsi_req_ref(&r->req); | |
efb9ee02 HR |
315 | if (r->req.cmd.mode != SCSI_XFER_TO_DEV) { |
316 | DPRINTF("Data transfer direction invalid\n"); | |
317 | scsi_write_complete(r, -EINVAL); | |
42741212 | 318 | return; |
efb9ee02 HR |
319 | } |
320 | ||
103b40f5 | 321 | n = r->qiov.size / 512; |
ea8a5d7f | 322 | if (n) { |
a1aff5bf MA |
323 | if (s->tray_open) { |
324 | scsi_write_complete(r, -ENOMEDIUM); | |
c7bae6a7 | 325 | return; |
a1aff5bf | 326 | } |
44740c38 PB |
327 | bdrv_acct_start(s->qdev.conf.bs, &r->acct, n * BDRV_SECTOR_SIZE, BDRV_ACCT_WRITE); |
328 | r->req.aiocb = bdrv_aio_writev(s->qdev.conf.bs, r->sector, &r->qiov, n, | |
103b40f5 | 329 | scsi_write_complete, r); |
d33ea50a | 330 | if (r->req.aiocb == NULL) { |
a1f0cce2 | 331 | scsi_write_complete(r, -ENOMEM); |
d33ea50a | 332 | } |
ea8a5d7f | 333 | } else { |
103b40f5 | 334 | /* Called for the first time. Ask the driver to send us more data. */ |
ea8a5d7f AL |
335 | scsi_write_complete(r, 0); |
336 | } | |
a917d384 | 337 | } |
2e5d83bb | 338 | |
a917d384 | 339 | /* Return a pointer to the data buffer. */ |
5c6c0e51 | 340 | static uint8_t *scsi_get_buf(SCSIRequest *req) |
a917d384 | 341 | { |
5c6c0e51 | 342 | SCSIDiskReq *r = DO_UPCAST(SCSIDiskReq, req, req); |
2e5d83bb | 343 | |
3f4cb3d3 | 344 | return (uint8_t *)r->iov.iov_base; |
2e5d83bb PB |
345 | } |
346 | ||
0b06c059 GH |
347 | static int scsi_disk_emulate_inquiry(SCSIRequest *req, uint8_t *outbuf) |
348 | { | |
383b4d9b | 349 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, req->dev); |
0b06c059 GH |
350 | int buflen = 0; |
351 | ||
352 | if (req->cmd.buf[1] & 0x2) { | |
353 | /* Command support data - optional, not implemented */ | |
354 | BADF("optional INQUIRY command support request not implemented\n"); | |
355 | return -1; | |
356 | } | |
357 | ||
358 | if (req->cmd.buf[1] & 0x1) { | |
359 | /* Vital product data */ | |
360 | uint8_t page_code = req->cmd.buf[2]; | |
361 | if (req->cmd.xfer < 4) { | |
362 | BADF("Error: Inquiry (EVPD[%02X]) buffer size %zd is " | |
363 | "less than 4\n", page_code, req->cmd.xfer); | |
364 | return -1; | |
365 | } | |
366 | ||
e39be482 | 367 | outbuf[buflen++] = s->qdev.type & 0x1f; |
0b06c059 GH |
368 | outbuf[buflen++] = page_code ; // this page |
369 | outbuf[buflen++] = 0x00; | |
370 | ||
371 | switch (page_code) { | |
372 | case 0x00: /* Supported page codes, mandatory */ | |
39d98982 HR |
373 | { |
374 | int pages; | |
0b06c059 GH |
375 | DPRINTF("Inquiry EVPD[Supported pages] " |
376 | "buffer size %zd\n", req->cmd.xfer); | |
39d98982 | 377 | pages = buflen++; |
0b06c059 | 378 | outbuf[buflen++] = 0x00; // list of supported pages (this page) |
f01b5931 | 379 | if (s->serial) { |
3e1c0c9a | 380 | outbuf[buflen++] = 0x80; // unit serial number |
f01b5931 | 381 | } |
0b06c059 | 382 | outbuf[buflen++] = 0x83; // device identification |
f37bd73b | 383 | if (s->qdev.type == TYPE_DISK) { |
ea3bd56f CH |
384 | outbuf[buflen++] = 0xb0; // block limits |
385 | outbuf[buflen++] = 0xb2; // thin provisioning | |
39d98982 HR |
386 | } |
387 | outbuf[pages] = buflen - pages - 1; // number of pages | |
0b06c059 | 388 | break; |
39d98982 | 389 | } |
0b06c059 GH |
390 | case 0x80: /* Device serial number, optional */ |
391 | { | |
3e1c0c9a | 392 | int l; |
0b06c059 | 393 | |
3e1c0c9a HR |
394 | if (!s->serial) { |
395 | DPRINTF("Inquiry (EVPD[Serial number] not supported\n"); | |
396 | return -1; | |
397 | } | |
398 | ||
399 | l = strlen(s->serial); | |
f01b5931 | 400 | if (l > req->cmd.xfer) { |
0b06c059 | 401 | l = req->cmd.xfer; |
f01b5931 PB |
402 | } |
403 | if (l > 20) { | |
0b06c059 | 404 | l = 20; |
f01b5931 | 405 | } |
0b06c059 GH |
406 | |
407 | DPRINTF("Inquiry EVPD[Serial number] " | |
408 | "buffer size %zd\n", req->cmd.xfer); | |
409 | outbuf[buflen++] = l; | |
a0fef654 | 410 | memcpy(outbuf+buflen, s->serial, l); |
0b06c059 GH |
411 | buflen += l; |
412 | break; | |
413 | } | |
414 | ||
415 | case 0x83: /* Device identification page, mandatory */ | |
416 | { | |
417 | int max_len = 255 - 8; | |
44740c38 | 418 | int id_len = strlen(bdrv_get_device_name(s->qdev.conf.bs)); |
0b06c059 | 419 | |
f01b5931 | 420 | if (id_len > max_len) { |
0b06c059 | 421 | id_len = max_len; |
f01b5931 | 422 | } |
0b06c059 GH |
423 | DPRINTF("Inquiry EVPD[Device identification] " |
424 | "buffer size %zd\n", req->cmd.xfer); | |
425 | ||
39d98982 | 426 | outbuf[buflen++] = 4 + id_len; |
0b06c059 GH |
427 | outbuf[buflen++] = 0x2; // ASCII |
428 | outbuf[buflen++] = 0; // not officially assigned | |
429 | outbuf[buflen++] = 0; // reserved | |
430 | outbuf[buflen++] = id_len; // length of data following | |
431 | ||
44740c38 | 432 | memcpy(outbuf+buflen, bdrv_get_device_name(s->qdev.conf.bs), id_len); |
0b06c059 GH |
433 | buflen += id_len; |
434 | break; | |
435 | } | |
ea3bd56f | 436 | case 0xb0: /* block limits */ |
ee3659e3 | 437 | { |
ea3bd56f CH |
438 | unsigned int unmap_sectors = |
439 | s->qdev.conf.discard_granularity / s->qdev.blocksize; | |
8cfacf07 CH |
440 | unsigned int min_io_size = |
441 | s->qdev.conf.min_io_size / s->qdev.blocksize; | |
442 | unsigned int opt_io_size = | |
443 | s->qdev.conf.opt_io_size / s->qdev.blocksize; | |
ee3659e3 | 444 | |
f37bd73b | 445 | if (s->qdev.type == TYPE_ROM) { |
39d98982 HR |
446 | DPRINTF("Inquiry (EVPD[%02X] not supported for CDROM\n", |
447 | page_code); | |
448 | return -1; | |
449 | } | |
ee3659e3 CH |
450 | /* required VPD size with unmap support */ |
451 | outbuf[3] = buflen = 0x3c; | |
452 | ||
453 | memset(outbuf + 4, 0, buflen - 4); | |
454 | ||
455 | /* optimal transfer length granularity */ | |
456 | outbuf[6] = (min_io_size >> 8) & 0xff; | |
457 | outbuf[7] = min_io_size & 0xff; | |
458 | ||
459 | /* optimal transfer length */ | |
460 | outbuf[12] = (opt_io_size >> 24) & 0xff; | |
461 | outbuf[13] = (opt_io_size >> 16) & 0xff; | |
462 | outbuf[14] = (opt_io_size >> 8) & 0xff; | |
463 | outbuf[15] = opt_io_size & 0xff; | |
ea3bd56f CH |
464 | |
465 | /* optimal unmap granularity */ | |
466 | outbuf[28] = (unmap_sectors >> 24) & 0xff; | |
467 | outbuf[29] = (unmap_sectors >> 16) & 0xff; | |
468 | outbuf[30] = (unmap_sectors >> 8) & 0xff; | |
469 | outbuf[31] = unmap_sectors & 0xff; | |
470 | break; | |
471 | } | |
472 | case 0xb2: /* thin provisioning */ | |
473 | { | |
474 | outbuf[3] = buflen = 8; | |
475 | outbuf[4] = 0; | |
476 | outbuf[5] = 0x40; /* write same with unmap supported */ | |
477 | outbuf[6] = 0; | |
478 | outbuf[7] = 0; | |
ee3659e3 CH |
479 | break; |
480 | } | |
0b06c059 GH |
481 | default: |
482 | BADF("Error: unsupported Inquiry (EVPD[%02X]) " | |
483 | "buffer size %zd\n", page_code, req->cmd.xfer); | |
484 | return -1; | |
485 | } | |
486 | /* done with EVPD */ | |
487 | return buflen; | |
488 | } | |
489 | ||
490 | /* Standard INQUIRY data */ | |
491 | if (req->cmd.buf[2] != 0) { | |
492 | BADF("Error: Inquiry (STANDARD) page or code " | |
493 | "is non-zero [%02X]\n", req->cmd.buf[2]); | |
494 | return -1; | |
495 | } | |
496 | ||
497 | /* PAGE CODE == 0 */ | |
498 | if (req->cmd.xfer < 5) { | |
499 | BADF("Error: Inquiry (STANDARD) buffer size %zd " | |
500 | "is less than 5\n", req->cmd.xfer); | |
501 | return -1; | |
502 | } | |
503 | ||
0b06c059 | 504 | buflen = req->cmd.xfer; |
f01b5931 | 505 | if (buflen > SCSI_MAX_INQUIRY_LEN) { |
0b06c059 | 506 | buflen = SCSI_MAX_INQUIRY_LEN; |
f01b5931 | 507 | } |
0b06c059 GH |
508 | memset(outbuf, 0, buflen); |
509 | ||
f37bd73b | 510 | outbuf[0] = s->qdev.type & 0x1f; |
e39be482 | 511 | outbuf[1] = s->removable ? 0x80 : 0; |
f37bd73b | 512 | if (s->qdev.type == TYPE_ROM) { |
550fe6c6 | 513 | memcpy(&outbuf[16], "QEMU CD-ROM ", 16); |
0b06c059 | 514 | } else { |
550fe6c6 | 515 | memcpy(&outbuf[16], "QEMU HARDDISK ", 16); |
0b06c059 | 516 | } |
550fe6c6 | 517 | memcpy(&outbuf[8], "QEMU ", 8); |
314b1811 | 518 | memset(&outbuf[32], 0, 4); |
552fee93 | 519 | memcpy(&outbuf[32], s->version, MIN(4, strlen(s->version))); |
99aba0c4 CH |
520 | /* |
521 | * We claim conformance to SPC-3, which is required for guests | |
522 | * to ask for modern features like READ CAPACITY(16) or the | |
523 | * block characteristics VPD page by default. Not all of SPC-3 | |
524 | * is actually implemented, but we're good enough. | |
525 | */ | |
ee3659e3 | 526 | outbuf[2] = 5; |
0b06c059 | 527 | outbuf[3] = 2; /* Format 2 */ |
ad3cea42 AT |
528 | |
529 | if (buflen > 36) { | |
530 | outbuf[4] = buflen - 5; /* Additional Length = (Len - 1) - 4 */ | |
531 | } else { | |
532 | /* If the allocation length of CDB is too small, | |
533 | the additional length is not adjusted */ | |
534 | outbuf[4] = 36 - 5; | |
535 | } | |
536 | ||
0b06c059 | 537 | /* Sync data transfer and TCQ. */ |
afd4030c | 538 | outbuf[7] = 0x10 | (req->bus->info->tcq ? 0x02 : 0); |
0b06c059 GH |
539 | return buflen; |
540 | } | |
541 | ||
430ee2f2 PB |
542 | static inline bool media_is_dvd(SCSIDiskState *s) |
543 | { | |
544 | uint64_t nb_sectors; | |
545 | if (s->qdev.type != TYPE_ROM) { | |
546 | return false; | |
547 | } | |
44740c38 | 548 | if (!bdrv_is_inserted(s->qdev.conf.bs)) { |
430ee2f2 PB |
549 | return false; |
550 | } | |
44740c38 | 551 | bdrv_get_geometry(s->qdev.conf.bs, &nb_sectors); |
430ee2f2 PB |
552 | return nb_sectors > CD_MAX_SECTORS; |
553 | } | |
554 | ||
ceb792ef PB |
555 | static inline bool media_is_cd(SCSIDiskState *s) |
556 | { | |
557 | uint64_t nb_sectors; | |
558 | if (s->qdev.type != TYPE_ROM) { | |
559 | return false; | |
560 | } | |
44740c38 | 561 | if (!bdrv_is_inserted(s->qdev.conf.bs)) { |
ceb792ef PB |
562 | return false; |
563 | } | |
44740c38 | 564 | bdrv_get_geometry(s->qdev.conf.bs, &nb_sectors); |
ceb792ef PB |
565 | return nb_sectors <= CD_MAX_SECTORS; |
566 | } | |
567 | ||
b6c251ab PB |
568 | static int scsi_read_dvd_structure(SCSIDiskState *s, SCSIDiskReq *r, |
569 | uint8_t *outbuf) | |
570 | { | |
ceb792ef PB |
571 | static const int rds_caps_size[5] = { |
572 | [0] = 2048 + 4, | |
573 | [1] = 4 + 4, | |
574 | [3] = 188 + 4, | |
575 | [4] = 2048 + 4, | |
576 | }; | |
577 | ||
578 | uint8_t media = r->req.cmd.buf[1]; | |
579 | uint8_t layer = r->req.cmd.buf[6]; | |
580 | uint8_t format = r->req.cmd.buf[7]; | |
581 | int size = -1; | |
582 | ||
583 | if (s->qdev.type != TYPE_ROM) { | |
584 | return -1; | |
585 | } | |
586 | if (media != 0) { | |
587 | scsi_check_condition(r, SENSE_CODE(INVALID_FIELD)); | |
588 | return -1; | |
589 | } | |
590 | ||
591 | if (format != 0xff) { | |
44740c38 | 592 | if (s->tray_open || !bdrv_is_inserted(s->qdev.conf.bs)) { |
ceb792ef PB |
593 | scsi_check_condition(r, SENSE_CODE(NO_MEDIUM)); |
594 | return -1; | |
595 | } | |
596 | if (media_is_cd(s)) { | |
597 | scsi_check_condition(r, SENSE_CODE(INCOMPATIBLE_FORMAT)); | |
598 | return -1; | |
599 | } | |
600 | if (format >= ARRAY_SIZE(rds_caps_size)) { | |
601 | return -1; | |
602 | } | |
603 | size = rds_caps_size[format]; | |
604 | memset(outbuf, 0, size); | |
605 | } | |
606 | ||
607 | switch (format) { | |
608 | case 0x00: { | |
609 | /* Physical format information */ | |
610 | uint64_t nb_sectors; | |
611 | if (layer != 0) { | |
612 | goto fail; | |
613 | } | |
44740c38 | 614 | bdrv_get_geometry(s->qdev.conf.bs, &nb_sectors); |
ceb792ef PB |
615 | |
616 | outbuf[4] = 1; /* DVD-ROM, part version 1 */ | |
617 | outbuf[5] = 0xf; /* 120mm disc, minimum rate unspecified */ | |
618 | outbuf[6] = 1; /* one layer, read-only (per MMC-2 spec) */ | |
619 | outbuf[7] = 0; /* default densities */ | |
620 | ||
621 | stl_be_p(&outbuf[12], (nb_sectors >> 2) - 1); /* end sector */ | |
622 | stl_be_p(&outbuf[16], (nb_sectors >> 2) - 1); /* l0 end sector */ | |
623 | break; | |
624 | } | |
625 | ||
626 | case 0x01: /* DVD copyright information, all zeros */ | |
627 | break; | |
628 | ||
629 | case 0x03: /* BCA information - invalid field for no BCA info */ | |
630 | return -1; | |
631 | ||
632 | case 0x04: /* DVD disc manufacturing information, all zeros */ | |
633 | break; | |
634 | ||
635 | case 0xff: { /* List capabilities */ | |
636 | int i; | |
637 | size = 4; | |
638 | for (i = 0; i < ARRAY_SIZE(rds_caps_size); i++) { | |
639 | if (!rds_caps_size[i]) { | |
640 | continue; | |
641 | } | |
642 | outbuf[size] = i; | |
643 | outbuf[size + 1] = 0x40; /* Not writable, readable */ | |
644 | stw_be_p(&outbuf[size + 2], rds_caps_size[i]); | |
645 | size += 4; | |
646 | } | |
647 | break; | |
648 | } | |
649 | ||
650 | default: | |
651 | return -1; | |
652 | } | |
653 | ||
654 | /* Size of buffer, not including 2 byte size field */ | |
655 | stw_be_p(outbuf, size - 2); | |
656 | return size; | |
657 | ||
658 | fail: | |
b6c251ab PB |
659 | return -1; |
660 | } | |
661 | ||
3c2f7c12 | 662 | static int scsi_event_status_media(SCSIDiskState *s, uint8_t *outbuf) |
b6c251ab | 663 | { |
3c2f7c12 PB |
664 | uint8_t event_code, media_status; |
665 | ||
666 | media_status = 0; | |
667 | if (s->tray_open) { | |
668 | media_status = MS_TRAY_OPEN; | |
44740c38 | 669 | } else if (bdrv_is_inserted(s->qdev.conf.bs)) { |
3c2f7c12 PB |
670 | media_status = MS_MEDIA_PRESENT; |
671 | } | |
672 | ||
673 | /* Event notification descriptor */ | |
674 | event_code = MEC_NO_CHANGE; | |
4480de19 PB |
675 | if (media_status != MS_TRAY_OPEN) { |
676 | if (s->media_event) { | |
677 | event_code = MEC_NEW_MEDIA; | |
678 | s->media_event = false; | |
679 | } else if (s->eject_request) { | |
680 | event_code = MEC_EJECT_REQUESTED; | |
681 | s->eject_request = false; | |
682 | } | |
3c2f7c12 PB |
683 | } |
684 | ||
685 | outbuf[0] = event_code; | |
686 | outbuf[1] = media_status; | |
687 | ||
688 | /* These fields are reserved, just clear them. */ | |
689 | outbuf[2] = 0; | |
690 | outbuf[3] = 0; | |
691 | return 4; | |
692 | } | |
693 | ||
694 | static int scsi_get_event_status_notification(SCSIDiskState *s, SCSIDiskReq *r, | |
695 | uint8_t *outbuf) | |
696 | { | |
697 | int size; | |
698 | uint8_t *buf = r->req.cmd.buf; | |
699 | uint8_t notification_class_request = buf[4]; | |
700 | if (s->qdev.type != TYPE_ROM) { | |
701 | return -1; | |
702 | } | |
703 | if ((buf[1] & 1) == 0) { | |
704 | /* asynchronous */ | |
705 | return -1; | |
706 | } | |
707 | ||
708 | size = 4; | |
709 | outbuf[0] = outbuf[1] = 0; | |
710 | outbuf[3] = 1 << GESN_MEDIA; /* supported events */ | |
711 | if (notification_class_request & (1 << GESN_MEDIA)) { | |
712 | outbuf[2] = GESN_MEDIA; | |
713 | size += scsi_event_status_media(s, &outbuf[size]); | |
714 | } else { | |
715 | outbuf[2] = 0x80; | |
716 | } | |
717 | stw_be_p(outbuf, size - 4); | |
718 | return size; | |
b6c251ab PB |
719 | } |
720 | ||
430ee2f2 | 721 | static int scsi_get_configuration(SCSIDiskState *s, uint8_t *outbuf) |
b6c251ab | 722 | { |
430ee2f2 PB |
723 | int current; |
724 | ||
b6c251ab PB |
725 | if (s->qdev.type != TYPE_ROM) { |
726 | return -1; | |
727 | } | |
430ee2f2 PB |
728 | current = media_is_dvd(s) ? MMC_PROFILE_DVD_ROM : MMC_PROFILE_CD_ROM; |
729 | memset(outbuf, 0, 40); | |
730 | stl_be_p(&outbuf[0], 36); /* Bytes after the data length field */ | |
731 | stw_be_p(&outbuf[6], current); | |
732 | /* outbuf[8] - outbuf[19]: Feature 0 - Profile list */ | |
733 | outbuf[10] = 0x03; /* persistent, current */ | |
734 | outbuf[11] = 8; /* two profiles */ | |
735 | stw_be_p(&outbuf[12], MMC_PROFILE_DVD_ROM); | |
736 | outbuf[14] = (current == MMC_PROFILE_DVD_ROM); | |
737 | stw_be_p(&outbuf[16], MMC_PROFILE_CD_ROM); | |
738 | outbuf[18] = (current == MMC_PROFILE_CD_ROM); | |
739 | /* outbuf[20] - outbuf[31]: Feature 1 - Core feature */ | |
740 | stw_be_p(&outbuf[20], 1); | |
741 | outbuf[22] = 0x08 | 0x03; /* version 2, persistent, current */ | |
742 | outbuf[23] = 8; | |
743 | stl_be_p(&outbuf[24], 1); /* SCSI */ | |
744 | outbuf[28] = 1; /* DBE = 1, mandatory */ | |
745 | /* outbuf[32] - outbuf[39]: Feature 3 - Removable media feature */ | |
746 | stw_be_p(&outbuf[32], 3); | |
747 | outbuf[34] = 0x08 | 0x03; /* version 2, persistent, current */ | |
748 | outbuf[35] = 4; | |
749 | outbuf[36] = 0x39; /* tray, load=1, eject=1, unlocked at powerup, lock=1 */ | |
750 | /* TODO: Random readable, CD read, DVD read, drive serial number, | |
751 | power management */ | |
752 | return 40; | |
b6c251ab PB |
753 | } |
754 | ||
755 | static int scsi_emulate_mechanism_status(SCSIDiskState *s, uint8_t *outbuf) | |
756 | { | |
757 | if (s->qdev.type != TYPE_ROM) { | |
758 | return -1; | |
759 | } | |
760 | memset(outbuf, 0, 8); | |
761 | outbuf[5] = 1; /* CD-ROM */ | |
762 | return 8; | |
763 | } | |
764 | ||
cfc606da | 765 | static int mode_sense_page(SCSIDiskState *s, int page, uint8_t **p_outbuf, |
282ab04e | 766 | int page_control) |
ebddfcbe | 767 | { |
a8f4bbe2 PB |
768 | static const int mode_sense_valid[0x3f] = { |
769 | [MODE_PAGE_HD_GEOMETRY] = (1 << TYPE_DISK), | |
770 | [MODE_PAGE_FLEXIBLE_DISK_GEOMETRY] = (1 << TYPE_DISK), | |
771 | [MODE_PAGE_CACHING] = (1 << TYPE_DISK) | (1 << TYPE_ROM), | |
a07c7dcd PB |
772 | [MODE_PAGE_R_W_ERROR] = (1 << TYPE_DISK) | (1 << TYPE_ROM), |
773 | [MODE_PAGE_AUDIO_CTL] = (1 << TYPE_ROM), | |
a8f4bbe2 PB |
774 | [MODE_PAGE_CAPABILITIES] = (1 << TYPE_ROM), |
775 | }; | |
776 | ||
44740c38 | 777 | BlockDriverState *bdrv = s->qdev.conf.bs; |
ebddfcbe | 778 | int cylinders, heads, secs; |
cfc606da | 779 | uint8_t *p = *p_outbuf; |
ebddfcbe | 780 | |
a8f4bbe2 PB |
781 | if ((mode_sense_valid[page] & (1 << s->qdev.type)) == 0) { |
782 | return -1; | |
783 | } | |
784 | ||
785 | p[0] = page; | |
786 | ||
282ab04e BK |
787 | /* |
788 | * If Changeable Values are requested, a mask denoting those mode parameters | |
789 | * that are changeable shall be returned. As we currently don't support | |
790 | * parameter changes via MODE_SELECT all bits are returned set to zero. | |
791 | * The buffer was already menset to zero by the caller of this function. | |
792 | */ | |
ebddfcbe | 793 | switch (page) { |
67cc61e4 | 794 | case MODE_PAGE_HD_GEOMETRY: |
ebddfcbe | 795 | p[1] = 0x16; |
282ab04e | 796 | if (page_control == 1) { /* Changeable Values */ |
cfc606da | 797 | break; |
282ab04e | 798 | } |
ebddfcbe | 799 | /* if a geometry hint is available, use it */ |
245d0049 | 800 | bdrv_guess_geometry(bdrv, &cylinders, &heads, &secs); |
ebddfcbe GH |
801 | p[2] = (cylinders >> 16) & 0xff; |
802 | p[3] = (cylinders >> 8) & 0xff; | |
803 | p[4] = cylinders & 0xff; | |
804 | p[5] = heads & 0xff; | |
805 | /* Write precomp start cylinder, disabled */ | |
806 | p[6] = (cylinders >> 16) & 0xff; | |
807 | p[7] = (cylinders >> 8) & 0xff; | |
808 | p[8] = cylinders & 0xff; | |
809 | /* Reduced current start cylinder, disabled */ | |
810 | p[9] = (cylinders >> 16) & 0xff; | |
811 | p[10] = (cylinders >> 8) & 0xff; | |
812 | p[11] = cylinders & 0xff; | |
813 | /* Device step rate [ns], 200ns */ | |
814 | p[12] = 0; | |
815 | p[13] = 200; | |
816 | /* Landing zone cylinder */ | |
817 | p[14] = 0xff; | |
818 | p[15] = 0xff; | |
819 | p[16] = 0xff; | |
820 | /* Medium rotation rate [rpm], 5400 rpm */ | |
821 | p[20] = (5400 >> 8) & 0xff; | |
822 | p[21] = 5400 & 0xff; | |
cfc606da | 823 | break; |
ebddfcbe | 824 | |
67cc61e4 | 825 | case MODE_PAGE_FLEXIBLE_DISK_GEOMETRY: |
ebddfcbe | 826 | p[1] = 0x1e; |
282ab04e | 827 | if (page_control == 1) { /* Changeable Values */ |
cfc606da | 828 | break; |
282ab04e | 829 | } |
ebddfcbe GH |
830 | /* Transfer rate [kbit/s], 5Mbit/s */ |
831 | p[2] = 5000 >> 8; | |
832 | p[3] = 5000 & 0xff; | |
833 | /* if a geometry hint is available, use it */ | |
245d0049 | 834 | bdrv_guess_geometry(bdrv, &cylinders, &heads, &secs); |
ebddfcbe GH |
835 | p[4] = heads & 0xff; |
836 | p[5] = secs & 0xff; | |
69377307 | 837 | p[6] = s->qdev.blocksize >> 8; |
ebddfcbe GH |
838 | p[8] = (cylinders >> 8) & 0xff; |
839 | p[9] = cylinders & 0xff; | |
840 | /* Write precomp start cylinder, disabled */ | |
841 | p[10] = (cylinders >> 8) & 0xff; | |
842 | p[11] = cylinders & 0xff; | |
843 | /* Reduced current start cylinder, disabled */ | |
844 | p[12] = (cylinders >> 8) & 0xff; | |
845 | p[13] = cylinders & 0xff; | |
846 | /* Device step rate [100us], 100us */ | |
847 | p[14] = 0; | |
848 | p[15] = 1; | |
849 | /* Device step pulse width [us], 1us */ | |
850 | p[16] = 1; | |
851 | /* Device head settle delay [100us], 100us */ | |
852 | p[17] = 0; | |
853 | p[18] = 1; | |
854 | /* Motor on delay [0.1s], 0.1s */ | |
855 | p[19] = 1; | |
856 | /* Motor off delay [0.1s], 0.1s */ | |
857 | p[20] = 1; | |
858 | /* Medium rotation rate [rpm], 5400 rpm */ | |
859 | p[28] = (5400 >> 8) & 0xff; | |
860 | p[29] = 5400 & 0xff; | |
cfc606da | 861 | break; |
ebddfcbe | 862 | |
67cc61e4 | 863 | case MODE_PAGE_CACHING: |
ebddfcbe GH |
864 | p[0] = 8; |
865 | p[1] = 0x12; | |
282ab04e | 866 | if (page_control == 1) { /* Changeable Values */ |
cfc606da | 867 | break; |
282ab04e | 868 | } |
44740c38 | 869 | if (bdrv_enable_write_cache(s->qdev.conf.bs)) { |
ebddfcbe GH |
870 | p[2] = 4; /* WCE */ |
871 | } | |
cfc606da | 872 | break; |
ebddfcbe | 873 | |
a07c7dcd PB |
874 | case MODE_PAGE_R_W_ERROR: |
875 | p[1] = 10; | |
876 | p[2] = 0x80; /* Automatic Write Reallocation Enabled */ | |
877 | if (s->qdev.type == TYPE_ROM) { | |
878 | p[3] = 0x20; /* Read Retry Count */ | |
879 | } | |
880 | break; | |
881 | ||
882 | case MODE_PAGE_AUDIO_CTL: | |
883 | p[1] = 14; | |
884 | break; | |
885 | ||
67cc61e4 | 886 | case MODE_PAGE_CAPABILITIES: |
ebddfcbe | 887 | p[1] = 0x14; |
282ab04e | 888 | if (page_control == 1) { /* Changeable Values */ |
cfc606da | 889 | break; |
282ab04e | 890 | } |
a07c7dcd PB |
891 | |
892 | p[2] = 0x3b; /* CD-R & CD-RW read */ | |
893 | p[3] = 0; /* Writing not supported */ | |
ebddfcbe GH |
894 | p[4] = 0x7f; /* Audio, composite, digital out, |
895 | mode 2 form 1&2, multi session */ | |
896 | p[5] = 0xff; /* CD DA, DA accurate, RW supported, | |
897 | RW corrected, C2 errors, ISRC, | |
898 | UPC, Bar code */ | |
81b1008d | 899 | p[6] = 0x2d | (s->tray_locked ? 2 : 0); |
ebddfcbe GH |
900 | /* Locking supported, jumper present, eject, tray */ |
901 | p[7] = 0; /* no volume & mute control, no | |
902 | changer */ | |
a07c7dcd | 903 | p[8] = (50 * 176) >> 8; /* 50x read speed */ |
ebddfcbe | 904 | p[9] = (50 * 176) & 0xff; |
a07c7dcd PB |
905 | p[10] = 2 >> 8; /* Two volume levels */ |
906 | p[11] = 2 & 0xff; | |
907 | p[12] = 2048 >> 8; /* 2M buffer */ | |
ebddfcbe | 908 | p[13] = 2048 & 0xff; |
a07c7dcd | 909 | p[14] = (16 * 176) >> 8; /* 16x read speed current */ |
ebddfcbe | 910 | p[15] = (16 * 176) & 0xff; |
a07c7dcd | 911 | p[18] = (16 * 176) >> 8; /* 16x write speed */ |
ebddfcbe | 912 | p[19] = (16 * 176) & 0xff; |
a07c7dcd | 913 | p[20] = (16 * 176) >> 8; /* 16x write speed current */ |
ebddfcbe | 914 | p[21] = (16 * 176) & 0xff; |
cfc606da | 915 | break; |
ebddfcbe GH |
916 | |
917 | default: | |
cfc606da | 918 | return -1; |
ebddfcbe | 919 | } |
cfc606da PB |
920 | |
921 | *p_outbuf += p[1] + 2; | |
922 | return p[1] + 2; | |
ebddfcbe GH |
923 | } |
924 | ||
cfc606da | 925 | static int scsi_disk_emulate_mode_sense(SCSIDiskReq *r, uint8_t *outbuf) |
ebddfcbe | 926 | { |
cfc606da | 927 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); |
ebddfcbe | 928 | uint64_t nb_sectors; |
cfc606da | 929 | int page, dbd, buflen, ret, page_control; |
ebddfcbe | 930 | uint8_t *p; |
ce512ee1 | 931 | uint8_t dev_specific_param; |
ebddfcbe | 932 | |
cfc606da PB |
933 | dbd = r->req.cmd.buf[1] & 0x8; |
934 | page = r->req.cmd.buf[2] & 0x3f; | |
935 | page_control = (r->req.cmd.buf[2] & 0xc0) >> 6; | |
aa2b1e89 | 936 | DPRINTF("Mode Sense(%d) (page %d, xfer %zd, page_control %d)\n", |
cfc606da PB |
937 | (r->req.cmd.buf[0] == MODE_SENSE) ? 6 : 10, page, r->req.cmd.xfer, page_control); |
938 | memset(outbuf, 0, r->req.cmd.xfer); | |
ebddfcbe GH |
939 | p = outbuf; |
940 | ||
44740c38 | 941 | if (bdrv_is_read_only(s->qdev.conf.bs)) { |
ce512ee1 BK |
942 | dev_specific_param = 0x80; /* Readonly. */ |
943 | } else { | |
944 | dev_specific_param = 0x00; | |
945 | } | |
946 | ||
cfc606da | 947 | if (r->req.cmd.buf[0] == MODE_SENSE) { |
ce512ee1 BK |
948 | p[1] = 0; /* Default media type. */ |
949 | p[2] = dev_specific_param; | |
950 | p[3] = 0; /* Block descriptor length. */ | |
951 | p += 4; | |
952 | } else { /* MODE_SENSE_10 */ | |
953 | p[2] = 0; /* Default media type. */ | |
954 | p[3] = dev_specific_param; | |
955 | p[6] = p[7] = 0; /* Block descriptor length. */ | |
956 | p += 8; | |
ebddfcbe | 957 | } |
ebddfcbe | 958 | |
0fd76ff4 | 959 | /* MMC prescribes that CD/DVD drives have no block descriptors. */ |
44740c38 | 960 | bdrv_get_geometry(s->qdev.conf.bs, &nb_sectors); |
0fd76ff4 | 961 | if (!dbd && s->qdev.type == TYPE_DISK && nb_sectors) { |
cfc606da | 962 | if (r->req.cmd.buf[0] == MODE_SENSE) { |
ce512ee1 BK |
963 | outbuf[3] = 8; /* Block descriptor length */ |
964 | } else { /* MODE_SENSE_10 */ | |
965 | outbuf[7] = 8; /* Block descriptor length */ | |
966 | } | |
69377307 | 967 | nb_sectors /= (s->qdev.blocksize / 512); |
f01b5931 | 968 | if (nb_sectors > 0xffffff) { |
2488b740 | 969 | nb_sectors = 0; |
f01b5931 | 970 | } |
ebddfcbe GH |
971 | p[0] = 0; /* media density code */ |
972 | p[1] = (nb_sectors >> 16) & 0xff; | |
973 | p[2] = (nb_sectors >> 8) & 0xff; | |
974 | p[3] = nb_sectors & 0xff; | |
975 | p[4] = 0; /* reserved */ | |
976 | p[5] = 0; /* bytes 5-7 are the sector size in bytes */ | |
69377307 | 977 | p[6] = s->qdev.blocksize >> 8; |
ebddfcbe GH |
978 | p[7] = 0; |
979 | p += 8; | |
980 | } | |
981 | ||
cfc606da PB |
982 | if (page_control == 3) { |
983 | /* Saved Values */ | |
984 | scsi_check_condition(r, SENSE_CODE(SAVING_PARAMS_NOT_SUPPORTED)); | |
985 | return -1; | |
282ab04e BK |
986 | } |
987 | ||
cfc606da PB |
988 | if (page == 0x3f) { |
989 | for (page = 0; page <= 0x3e; page++) { | |
990 | mode_sense_page(s, page, &p, page_control); | |
991 | } | |
992 | } else { | |
993 | ret = mode_sense_page(s, page, &p, page_control); | |
994 | if (ret == -1) { | |
995 | return -1; | |
996 | } | |
ebddfcbe GH |
997 | } |
998 | ||
999 | buflen = p - outbuf; | |
ce512ee1 BK |
1000 | /* |
1001 | * The mode data length field specifies the length in bytes of the | |
1002 | * following data that is available to be transferred. The mode data | |
1003 | * length does not include itself. | |
1004 | */ | |
cfc606da | 1005 | if (r->req.cmd.buf[0] == MODE_SENSE) { |
ce512ee1 BK |
1006 | outbuf[0] = buflen - 1; |
1007 | } else { /* MODE_SENSE_10 */ | |
1008 | outbuf[0] = ((buflen - 2) >> 8) & 0xff; | |
1009 | outbuf[1] = (buflen - 2) & 0xff; | |
1010 | } | |
f01b5931 | 1011 | if (buflen > r->req.cmd.xfer) { |
cfc606da | 1012 | buflen = r->req.cmd.xfer; |
f01b5931 | 1013 | } |
ebddfcbe GH |
1014 | return buflen; |
1015 | } | |
1016 | ||
02880f43 GH |
1017 | static int scsi_disk_emulate_read_toc(SCSIRequest *req, uint8_t *outbuf) |
1018 | { | |
1019 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, req->dev); | |
02880f43 GH |
1020 | int start_track, format, msf, toclen; |
1021 | uint64_t nb_sectors; | |
1022 | ||
1023 | msf = req->cmd.buf[1] & 2; | |
1024 | format = req->cmd.buf[2] & 0xf; | |
1025 | start_track = req->cmd.buf[6]; | |
44740c38 | 1026 | bdrv_get_geometry(s->qdev.conf.bs, &nb_sectors); |
02880f43 | 1027 | DPRINTF("Read TOC (track %d format %d msf %d)\n", start_track, format, msf >> 1); |
69377307 | 1028 | nb_sectors /= s->qdev.blocksize / 512; |
02880f43 GH |
1029 | switch (format) { |
1030 | case 0: | |
1031 | toclen = cdrom_read_toc(nb_sectors, outbuf, msf, start_track); | |
1032 | break; | |
1033 | case 1: | |
1034 | /* multi session : only a single session defined */ | |
1035 | toclen = 12; | |
1036 | memset(outbuf, 0, 12); | |
1037 | outbuf[1] = 0x0a; | |
1038 | outbuf[2] = 0x01; | |
1039 | outbuf[3] = 0x01; | |
1040 | break; | |
1041 | case 2: | |
1042 | toclen = cdrom_read_toc_raw(nb_sectors, outbuf, msf, start_track); | |
1043 | break; | |
1044 | default: | |
1045 | return -1; | |
1046 | } | |
f01b5931 | 1047 | if (toclen > req->cmd.xfer) { |
02880f43 | 1048 | toclen = req->cmd.xfer; |
f01b5931 | 1049 | } |
02880f43 GH |
1050 | return toclen; |
1051 | } | |
1052 | ||
68bb01f3 | 1053 | static int scsi_disk_emulate_start_stop(SCSIDiskReq *r) |
bfd52647 MA |
1054 | { |
1055 | SCSIRequest *req = &r->req; | |
1056 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, req->dev); | |
1057 | bool start = req->cmd.buf[4] & 1; | |
1058 | bool loej = req->cmd.buf[4] & 2; /* load on start, eject on !start */ | |
1059 | ||
1060 | if (s->qdev.type == TYPE_ROM && loej) { | |
68bb01f3 MA |
1061 | if (!start && !s->tray_open && s->tray_locked) { |
1062 | scsi_check_condition(r, | |
44740c38 | 1063 | bdrv_is_inserted(s->qdev.conf.bs) |
68bb01f3 MA |
1064 | ? SENSE_CODE(ILLEGAL_REQ_REMOVAL_PREVENTED) |
1065 | : SENSE_CODE(NOT_READY_REMOVAL_PREVENTED)); | |
1066 | return -1; | |
fdec4404 | 1067 | } |
44740c38 | 1068 | bdrv_eject(s->qdev.conf.bs, !start); |
ece0d5e9 | 1069 | s->tray_open = !start; |
bfd52647 | 1070 | } |
68bb01f3 | 1071 | return 0; |
bfd52647 MA |
1072 | } |
1073 | ||
7285477a | 1074 | static int scsi_disk_emulate_command(SCSIDiskReq *r) |
aa5dbdc1 | 1075 | { |
8af7a3ab | 1076 | SCSIRequest *req = &r->req; |
e7e25e32 | 1077 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, req->dev); |
e7e25e32 | 1078 | uint64_t nb_sectors; |
7285477a | 1079 | uint8_t *outbuf; |
aa5dbdc1 GH |
1080 | int buflen = 0; |
1081 | ||
7285477a PB |
1082 | if (!r->iov.iov_base) { |
1083 | /* | |
1084 | * FIXME: we shouldn't return anything bigger than 4k, but the code | |
1085 | * requires the buffer to be as big as req->cmd.xfer in several | |
1086 | * places. So, do not allow CDBs with a very large ALLOCATION | |
1087 | * LENGTH. The real fix would be to modify scsi_read_data and | |
1088 | * dma_buf_read, so that they return data beyond the buflen | |
1089 | * as all zeros. | |
1090 | */ | |
1091 | if (req->cmd.xfer > 65536) { | |
1092 | goto illegal_request; | |
1093 | } | |
1094 | r->buflen = MAX(4096, req->cmd.xfer); | |
44740c38 | 1095 | r->iov.iov_base = qemu_blockalign(s->qdev.conf.bs, r->buflen); |
7285477a PB |
1096 | } |
1097 | ||
1098 | outbuf = r->iov.iov_base; | |
aa5dbdc1 GH |
1099 | switch (req->cmd.buf[0]) { |
1100 | case TEST_UNIT_READY: | |
44740c38 | 1101 | if (s->tray_open || !bdrv_is_inserted(s->qdev.conf.bs)) { |
aa5dbdc1 | 1102 | goto not_ready; |
f01b5931 | 1103 | } |
5f71d32f | 1104 | break; |
0b06c059 GH |
1105 | case INQUIRY: |
1106 | buflen = scsi_disk_emulate_inquiry(req, outbuf); | |
f01b5931 | 1107 | if (buflen < 0) { |
0b06c059 | 1108 | goto illegal_request; |
f01b5931 | 1109 | } |
5f71d32f | 1110 | break; |
ebddfcbe GH |
1111 | case MODE_SENSE: |
1112 | case MODE_SENSE_10: | |
cfc606da | 1113 | buflen = scsi_disk_emulate_mode_sense(r, outbuf); |
f01b5931 | 1114 | if (buflen < 0) { |
ebddfcbe | 1115 | goto illegal_request; |
f01b5931 | 1116 | } |
ebddfcbe | 1117 | break; |
02880f43 GH |
1118 | case READ_TOC: |
1119 | buflen = scsi_disk_emulate_read_toc(req, outbuf); | |
f01b5931 | 1120 | if (buflen < 0) { |
02880f43 | 1121 | goto illegal_request; |
f01b5931 | 1122 | } |
02880f43 | 1123 | break; |
3d53ba18 | 1124 | case RESERVE: |
f01b5931 | 1125 | if (req->cmd.buf[1] & 1) { |
3d53ba18 | 1126 | goto illegal_request; |
f01b5931 | 1127 | } |
3d53ba18 GH |
1128 | break; |
1129 | case RESERVE_10: | |
f01b5931 | 1130 | if (req->cmd.buf[1] & 3) { |
3d53ba18 | 1131 | goto illegal_request; |
f01b5931 | 1132 | } |
3d53ba18 GH |
1133 | break; |
1134 | case RELEASE: | |
f01b5931 | 1135 | if (req->cmd.buf[1] & 1) { |
3d53ba18 | 1136 | goto illegal_request; |
f01b5931 | 1137 | } |
3d53ba18 GH |
1138 | break; |
1139 | case RELEASE_10: | |
f01b5931 | 1140 | if (req->cmd.buf[1] & 3) { |
3d53ba18 | 1141 | goto illegal_request; |
f01b5931 | 1142 | } |
3d53ba18 | 1143 | break; |
8d3628ff | 1144 | case START_STOP: |
68bb01f3 MA |
1145 | if (scsi_disk_emulate_start_stop(r) < 0) { |
1146 | return -1; | |
1147 | } | |
5f71d32f | 1148 | break; |
c68b9f34 | 1149 | case ALLOW_MEDIUM_REMOVAL: |
81b1008d | 1150 | s->tray_locked = req->cmd.buf[4] & 1; |
44740c38 | 1151 | bdrv_lock_medium(s->qdev.conf.bs, req->cmd.buf[4] & 1); |
5f71d32f | 1152 | break; |
5e30a07d | 1153 | case READ_CAPACITY_10: |
e7e25e32 | 1154 | /* The normal LEN field for this command is zero. */ |
5f71d32f | 1155 | memset(outbuf, 0, 8); |
44740c38 | 1156 | bdrv_get_geometry(s->qdev.conf.bs, &nb_sectors); |
f01b5931 | 1157 | if (!nb_sectors) { |
e7e25e32 | 1158 | goto not_ready; |
f01b5931 | 1159 | } |
7cec78b6 PB |
1160 | if ((req->cmd.buf[8] & 1) == 0 && req->cmd.lba) { |
1161 | goto illegal_request; | |
1162 | } | |
69377307 | 1163 | nb_sectors /= s->qdev.blocksize / 512; |
e7e25e32 GH |
1164 | /* Returned value is the address of the last sector. */ |
1165 | nb_sectors--; | |
1166 | /* Remember the new size for read/write sanity checking. */ | |
7877903a | 1167 | s->qdev.max_lba = nb_sectors; |
e7e25e32 | 1168 | /* Clip to 2TB, instead of returning capacity modulo 2TB. */ |
f01b5931 | 1169 | if (nb_sectors > UINT32_MAX) { |
e7e25e32 | 1170 | nb_sectors = UINT32_MAX; |
f01b5931 | 1171 | } |
e7e25e32 GH |
1172 | outbuf[0] = (nb_sectors >> 24) & 0xff; |
1173 | outbuf[1] = (nb_sectors >> 16) & 0xff; | |
1174 | outbuf[2] = (nb_sectors >> 8) & 0xff; | |
1175 | outbuf[3] = nb_sectors & 0xff; | |
1176 | outbuf[4] = 0; | |
1177 | outbuf[5] = 0; | |
69377307 | 1178 | outbuf[6] = s->qdev.blocksize >> 8; |
e7e25e32 GH |
1179 | outbuf[7] = 0; |
1180 | buflen = 8; | |
5f71d32f | 1181 | break; |
f3b338ef PB |
1182 | case REQUEST_SENSE: |
1183 | /* Just return "NO SENSE". */ | |
1184 | buflen = scsi_build_sense(NULL, 0, outbuf, r->buflen, | |
1185 | (req->cmd.buf[1] & 1) == 0); | |
1186 | break; | |
b6c251ab PB |
1187 | case MECHANISM_STATUS: |
1188 | buflen = scsi_emulate_mechanism_status(s, outbuf); | |
1189 | if (buflen < 0) { | |
1190 | goto illegal_request; | |
1191 | } | |
1192 | break; | |
38215553 | 1193 | case GET_CONFIGURATION: |
430ee2f2 | 1194 | buflen = scsi_get_configuration(s, outbuf); |
b6c251ab PB |
1195 | if (buflen < 0) { |
1196 | goto illegal_request; | |
1197 | } | |
1198 | break; | |
1199 | case GET_EVENT_STATUS_NOTIFICATION: | |
1200 | buflen = scsi_get_event_status_notification(s, r, outbuf); | |
1201 | if (buflen < 0) { | |
1202 | goto illegal_request; | |
1203 | } | |
1204 | break; | |
1205 | case READ_DVD_STRUCTURE: | |
1206 | buflen = scsi_read_dvd_structure(s, r, outbuf); | |
1207 | if (buflen < 0) { | |
1208 | goto illegal_request; | |
1209 | } | |
38215553 | 1210 | break; |
f6515262 | 1211 | case SERVICE_ACTION_IN_16: |
5dd90e2a | 1212 | /* Service Action In subcommands. */ |
f6515262 | 1213 | if ((req->cmd.buf[1] & 31) == SAI_READ_CAPACITY_16) { |
5dd90e2a GH |
1214 | DPRINTF("SAI READ CAPACITY(16)\n"); |
1215 | memset(outbuf, 0, req->cmd.xfer); | |
44740c38 | 1216 | bdrv_get_geometry(s->qdev.conf.bs, &nb_sectors); |
f01b5931 | 1217 | if (!nb_sectors) { |
5dd90e2a | 1218 | goto not_ready; |
f01b5931 | 1219 | } |
7cec78b6 PB |
1220 | if ((req->cmd.buf[14] & 1) == 0 && req->cmd.lba) { |
1221 | goto illegal_request; | |
1222 | } | |
69377307 | 1223 | nb_sectors /= s->qdev.blocksize / 512; |
5dd90e2a GH |
1224 | /* Returned value is the address of the last sector. */ |
1225 | nb_sectors--; | |
1226 | /* Remember the new size for read/write sanity checking. */ | |
7877903a | 1227 | s->qdev.max_lba = nb_sectors; |
5dd90e2a GH |
1228 | outbuf[0] = (nb_sectors >> 56) & 0xff; |
1229 | outbuf[1] = (nb_sectors >> 48) & 0xff; | |
1230 | outbuf[2] = (nb_sectors >> 40) & 0xff; | |
1231 | outbuf[3] = (nb_sectors >> 32) & 0xff; | |
1232 | outbuf[4] = (nb_sectors >> 24) & 0xff; | |
1233 | outbuf[5] = (nb_sectors >> 16) & 0xff; | |
1234 | outbuf[6] = (nb_sectors >> 8) & 0xff; | |
1235 | outbuf[7] = nb_sectors & 0xff; | |
1236 | outbuf[8] = 0; | |
1237 | outbuf[9] = 0; | |
69377307 | 1238 | outbuf[10] = s->qdev.blocksize >> 8; |
5dd90e2a | 1239 | outbuf[11] = 0; |
ee3659e3 CH |
1240 | outbuf[12] = 0; |
1241 | outbuf[13] = get_physical_block_exp(&s->qdev.conf); | |
ea3bd56f CH |
1242 | |
1243 | /* set TPE bit if the format supports discard */ | |
1244 | if (s->qdev.conf.discard_granularity) { | |
1245 | outbuf[14] = 0x80; | |
1246 | } | |
1247 | ||
5dd90e2a GH |
1248 | /* Protection, exponent and lowest lba field left blank. */ |
1249 | buflen = req->cmd.xfer; | |
1250 | break; | |
1251 | } | |
1252 | DPRINTF("Unsupported Service Action In\n"); | |
1253 | goto illegal_request; | |
5e30a07d | 1254 | case VERIFY_10: |
88f8a5ed | 1255 | break; |
aa5dbdc1 | 1256 | default: |
b45ef674 | 1257 | scsi_check_condition(r, SENSE_CODE(INVALID_OPCODE)); |
a1f0cce2 | 1258 | return -1; |
aa5dbdc1 | 1259 | } |
aa5dbdc1 GH |
1260 | return buflen; |
1261 | ||
1262 | not_ready: | |
44740c38 | 1263 | if (s->tray_open || !bdrv_is_inserted(s->qdev.conf.bs)) { |
b45ef674 | 1264 | scsi_check_condition(r, SENSE_CODE(NO_MEDIUM)); |
a1f0cce2 | 1265 | } else { |
b45ef674 | 1266 | scsi_check_condition(r, SENSE_CODE(LUN_NOT_READY)); |
a1f0cce2 | 1267 | } |
8af7a3ab | 1268 | return -1; |
aa5dbdc1 GH |
1269 | |
1270 | illegal_request: | |
cfc606da PB |
1271 | if (r->req.status == -1) { |
1272 | scsi_check_condition(r, SENSE_CODE(INVALID_FIELD)); | |
1273 | } | |
8af7a3ab | 1274 | return -1; |
aa5dbdc1 GH |
1275 | } |
1276 | ||
2e5d83bb PB |
1277 | /* Execute a scsi command. Returns the length of the data expected by the |
1278 | command. This will be Positive for data transfers from the device | |
1279 | (eg. disk reads), negative for transfers to the device (eg. disk writes), | |
1280 | and zero if the command does not transfer any data. */ | |
1281 | ||
5c6c0e51 | 1282 | static int32_t scsi_send_command(SCSIRequest *req, uint8_t *buf) |
2e5d83bb | 1283 | { |
5c6c0e51 HR |
1284 | SCSIDiskReq *r = DO_UPCAST(SCSIDiskReq, req, req); |
1285 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, req->dev); | |
ad2d30f7 | 1286 | int32_t len; |
a917d384 | 1287 | uint8_t command; |
aa5dbdc1 | 1288 | int rc; |
a917d384 PB |
1289 | |
1290 | command = buf[0]; | |
653c1c3f | 1291 | DPRINTF("Command: lun=%d tag=0x%x data=0x%02x", req->lun, req->tag, buf[0]); |
2dd791b6 | 1292 | |
2e5d83bb PB |
1293 | #ifdef DEBUG_SCSI |
1294 | { | |
1295 | int i; | |
2dd791b6 | 1296 | for (i = 1; i < r->req.cmd.len; i++) { |
2e5d83bb PB |
1297 | printf(" 0x%02x", buf[i]); |
1298 | } | |
1299 | printf("\n"); | |
1300 | } | |
1301 | #endif | |
aa5dbdc1 | 1302 | |
a917d384 | 1303 | switch (command) { |
ebf46023 | 1304 | case TEST_UNIT_READY: |
0b06c059 | 1305 | case INQUIRY: |
ebddfcbe GH |
1306 | case MODE_SENSE: |
1307 | case MODE_SENSE_10: | |
3d53ba18 GH |
1308 | case RESERVE: |
1309 | case RESERVE_10: | |
1310 | case RELEASE: | |
1311 | case RELEASE_10: | |
8d3628ff | 1312 | case START_STOP: |
c68b9f34 | 1313 | case ALLOW_MEDIUM_REMOVAL: |
5e30a07d | 1314 | case READ_CAPACITY_10: |
02880f43 | 1315 | case READ_TOC: |
b6c251ab | 1316 | case READ_DVD_STRUCTURE: |
38215553 | 1317 | case GET_CONFIGURATION: |
b6c251ab PB |
1318 | case GET_EVENT_STATUS_NOTIFICATION: |
1319 | case MECHANISM_STATUS: | |
f6515262 | 1320 | case SERVICE_ACTION_IN_16: |
f3b338ef | 1321 | case REQUEST_SENSE: |
5e30a07d | 1322 | case VERIFY_10: |
7285477a | 1323 | rc = scsi_disk_emulate_command(r); |
8af7a3ab | 1324 | if (rc < 0) { |
0b06c059 | 1325 | return 0; |
aa5dbdc1 | 1326 | } |
8af7a3ab KW |
1327 | |
1328 | r->iov.iov_len = rc; | |
0b06c059 | 1329 | break; |
0a4ac106 | 1330 | case SYNCHRONIZE_CACHE: |
c7bae6a7 PB |
1331 | /* The request is used as the AIO opaque value, so add a ref. */ |
1332 | scsi_req_ref(&r->req); | |
44740c38 PB |
1333 | bdrv_acct_start(s->qdev.conf.bs, &r->acct, 0, BDRV_ACCT_FLUSH); |
1334 | r->req.aiocb = bdrv_aio_flush(s->qdev.conf.bs, scsi_flush_complete, r); | |
0a4ac106 PB |
1335 | if (r->req.aiocb == NULL) { |
1336 | scsi_flush_complete(r, -EIO); | |
1337 | } | |
1338 | return 0; | |
ebf46023 GH |
1339 | case READ_6: |
1340 | case READ_10: | |
bd536cf3 GH |
1341 | case READ_12: |
1342 | case READ_16: | |
5c6c0e51 | 1343 | len = r->req.cmd.xfer / s->qdev.blocksize; |
2dd791b6 | 1344 | DPRINTF("Read (sector %" PRId64 ", count %d)\n", r->req.cmd.lba, len); |
7877903a | 1345 | if (r->req.cmd.lba > s->qdev.max_lba) { |
274fb0e1 | 1346 | goto illegal_lba; |
f01b5931 | 1347 | } |
69377307 PB |
1348 | r->sector = r->req.cmd.lba * (s->qdev.blocksize / 512); |
1349 | r->sector_count = len * (s->qdev.blocksize / 512); | |
2e5d83bb | 1350 | break; |
ebf46023 GH |
1351 | case WRITE_6: |
1352 | case WRITE_10: | |
bd536cf3 GH |
1353 | case WRITE_12: |
1354 | case WRITE_16: | |
5e30a07d | 1355 | case WRITE_VERIFY_10: |
ebef0bbb BK |
1356 | case WRITE_VERIFY_12: |
1357 | case WRITE_VERIFY_16: | |
5c6c0e51 | 1358 | len = r->req.cmd.xfer / s->qdev.blocksize; |
ebef0bbb | 1359 | DPRINTF("Write %s(sector %" PRId64 ", count %d)\n", |
2dd791b6 HR |
1360 | (command & 0xe) == 0xe ? "And Verify " : "", |
1361 | r->req.cmd.lba, len); | |
7877903a | 1362 | if (r->req.cmd.lba > s->qdev.max_lba) { |
274fb0e1 | 1363 | goto illegal_lba; |
f01b5931 | 1364 | } |
69377307 PB |
1365 | r->sector = r->req.cmd.lba * (s->qdev.blocksize / 512); |
1366 | r->sector_count = len * (s->qdev.blocksize / 512); | |
2e5d83bb | 1367 | break; |
ebef0bbb | 1368 | case MODE_SELECT: |
2dd791b6 | 1369 | DPRINTF("Mode Select(6) (len %lu)\n", (long)r->req.cmd.xfer); |
ebef0bbb BK |
1370 | /* We don't support mode parameter changes. |
1371 | Allow the mode parameter header + block descriptors only. */ | |
2dd791b6 | 1372 | if (r->req.cmd.xfer > 12) { |
ebef0bbb BK |
1373 | goto fail; |
1374 | } | |
1375 | break; | |
1376 | case MODE_SELECT_10: | |
2dd791b6 | 1377 | DPRINTF("Mode Select(10) (len %lu)\n", (long)r->req.cmd.xfer); |
ebef0bbb BK |
1378 | /* We don't support mode parameter changes. |
1379 | Allow the mode parameter header + block descriptors only. */ | |
2dd791b6 | 1380 | if (r->req.cmd.xfer > 16) { |
ebef0bbb BK |
1381 | goto fail; |
1382 | } | |
1383 | break; | |
ebef0bbb | 1384 | case SEEK_10: |
00a01ad4 | 1385 | DPRINTF("Seek(10) (sector %" PRId64 ")\n", r->req.cmd.lba); |
7877903a | 1386 | if (r->req.cmd.lba > s->qdev.max_lba) { |
ebef0bbb BK |
1387 | goto illegal_lba; |
1388 | } | |
ea3bd56f CH |
1389 | break; |
1390 | case WRITE_SAME_16: | |
5c6c0e51 | 1391 | len = r->req.cmd.xfer / s->qdev.blocksize; |
ea3bd56f CH |
1392 | |
1393 | DPRINTF("WRITE SAME(16) (sector %" PRId64 ", count %d)\n", | |
1394 | r->req.cmd.lba, len); | |
1395 | ||
7877903a | 1396 | if (r->req.cmd.lba > s->qdev.max_lba) { |
ea3bd56f CH |
1397 | goto illegal_lba; |
1398 | } | |
1399 | ||
1400 | /* | |
1401 | * We only support WRITE SAME with the unmap bit set for now. | |
1402 | */ | |
1403 | if (!(buf[1] & 0x8)) { | |
1404 | goto fail; | |
1405 | } | |
1406 | ||
69377307 PB |
1407 | rc = bdrv_discard(s->qdev.conf.bs, |
1408 | r->req.cmd.lba * (s->qdev.blocksize / 512), | |
1409 | len * (s->qdev.blocksize / 512)); | |
ea3bd56f CH |
1410 | if (rc < 0) { |
1411 | /* XXX: better error code ?*/ | |
1412 | goto fail; | |
1413 | } | |
1414 | ||
ebef0bbb | 1415 | break; |
2e5d83bb | 1416 | default: |
2dd791b6 | 1417 | DPRINTF("Unknown SCSI command (%2.2x)\n", buf[0]); |
b45ef674 | 1418 | scsi_check_condition(r, SENSE_CODE(INVALID_OPCODE)); |
a1f0cce2 | 1419 | return 0; |
2e5d83bb | 1420 | fail: |
b45ef674 | 1421 | scsi_check_condition(r, SENSE_CODE(INVALID_FIELD)); |
2dd791b6 | 1422 | return 0; |
274fb0e1 | 1423 | illegal_lba: |
b45ef674 | 1424 | scsi_check_condition(r, SENSE_CODE(LBA_OUT_OF_RANGE)); |
274fb0e1 | 1425 | return 0; |
2e5d83bb | 1426 | } |
c87c0672 | 1427 | if (r->sector_count == 0 && r->iov.iov_len == 0) { |
b45ef674 | 1428 | scsi_req_complete(&r->req, GOOD); |
a917d384 | 1429 | } |
c87c0672 | 1430 | len = r->sector_count * 512 + r->iov.iov_len; |
efb9ee02 HR |
1431 | if (r->req.cmd.mode == SCSI_XFER_TO_DEV) { |
1432 | return -len; | |
a917d384 | 1433 | } else { |
f01b5931 | 1434 | if (!r->sector_count) { |
a917d384 | 1435 | r->sector_count = -1; |
f01b5931 | 1436 | } |
efb9ee02 | 1437 | return len; |
2e5d83bb | 1438 | } |
2e5d83bb PB |
1439 | } |
1440 | ||
e9447f35 JK |
1441 | static void scsi_disk_reset(DeviceState *dev) |
1442 | { | |
1443 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev.qdev, dev); | |
1444 | uint64_t nb_sectors; | |
1445 | ||
c7b48872 | 1446 | scsi_device_purge_requests(&s->qdev, SENSE_CODE(RESET)); |
e9447f35 | 1447 | |
44740c38 | 1448 | bdrv_get_geometry(s->qdev.conf.bs, &nb_sectors); |
69377307 | 1449 | nb_sectors /= s->qdev.blocksize / 512; |
e9447f35 JK |
1450 | if (nb_sectors) { |
1451 | nb_sectors--; | |
1452 | } | |
7877903a | 1453 | s->qdev.max_lba = nb_sectors; |
e9447f35 JK |
1454 | } |
1455 | ||
1456 | static void scsi_destroy(SCSIDevice *dev) | |
1457 | { | |
1458 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, dev); | |
1459 | ||
c7b48872 | 1460 | scsi_device_purge_requests(&s->qdev, SENSE_CODE(NO_SENSE)); |
f8b6cc00 | 1461 | blockdev_mark_auto_del(s->qdev.conf.bs); |
56a14938 GH |
1462 | } |
1463 | ||
7d4b4ba5 | 1464 | static void scsi_cd_change_media_cb(void *opaque, bool load) |
2c6942fa | 1465 | { |
8a9c16f6 PB |
1466 | SCSIDiskState *s = opaque; |
1467 | ||
1468 | /* | |
1469 | * When a CD gets changed, we have to report an ejected state and | |
1470 | * then a loaded state to guests so that they detect tray | |
1471 | * open/close and media change events. Guests that do not use | |
1472 | * GET_EVENT_STATUS_NOTIFICATION to detect such tray open/close | |
1473 | * states rely on this behavior. | |
1474 | * | |
1475 | * media_changed governs the state machine used for unit attention | |
1476 | * report. media_event is used by GET EVENT STATUS NOTIFICATION. | |
1477 | */ | |
1478 | s->media_changed = load; | |
1479 | s->tray_open = !load; | |
1480 | s->qdev.unit_attention = SENSE_CODE(UNIT_ATTENTION_NO_MEDIUM); | |
3c2f7c12 | 1481 | s->media_event = true; |
4480de19 PB |
1482 | s->eject_request = false; |
1483 | } | |
1484 | ||
1485 | static void scsi_cd_eject_request_cb(void *opaque, bool force) | |
1486 | { | |
1487 | SCSIDiskState *s = opaque; | |
1488 | ||
1489 | s->eject_request = true; | |
1490 | if (force) { | |
1491 | s->tray_locked = false; | |
1492 | } | |
2c6942fa MA |
1493 | } |
1494 | ||
e4def80b MA |
1495 | static bool scsi_cd_is_tray_open(void *opaque) |
1496 | { | |
1497 | return ((SCSIDiskState *)opaque)->tray_open; | |
1498 | } | |
1499 | ||
f107639a MA |
1500 | static bool scsi_cd_is_medium_locked(void *opaque) |
1501 | { | |
1502 | return ((SCSIDiskState *)opaque)->tray_locked; | |
1503 | } | |
1504 | ||
1505 | static const BlockDevOps scsi_cd_block_ops = { | |
2c6942fa | 1506 | .change_media_cb = scsi_cd_change_media_cb, |
4480de19 | 1507 | .eject_request_cb = scsi_cd_eject_request_cb, |
e4def80b | 1508 | .is_tray_open = scsi_cd_is_tray_open, |
f107639a MA |
1509 | .is_medium_locked = scsi_cd_is_medium_locked, |
1510 | }; | |
1511 | ||
8a9c16f6 PB |
1512 | static void scsi_disk_unit_attention_reported(SCSIDevice *dev) |
1513 | { | |
1514 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, dev); | |
1515 | if (s->media_changed) { | |
1516 | s->media_changed = false; | |
1517 | s->qdev.unit_attention = SENSE_CODE(MEDIUM_CHANGED); | |
1518 | } | |
1519 | } | |
1520 | ||
e39be482 | 1521 | static int scsi_initfn(SCSIDevice *dev) |
2e5d83bb | 1522 | { |
d52affa7 | 1523 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, dev); |
f8b6cc00 | 1524 | DriveInfo *dinfo; |
2e5d83bb | 1525 | |
f8b6cc00 | 1526 | if (!s->qdev.conf.bs) { |
1ecda02b | 1527 | error_report("scsi-disk: drive property not set"); |
d52affa7 GH |
1528 | return -1; |
1529 | } | |
1530 | ||
e39be482 | 1531 | if (!s->removable && !bdrv_is_inserted(s->qdev.conf.bs)) { |
98f28ad7 MA |
1532 | error_report("Device needs media, but drive is empty"); |
1533 | return -1; | |
1534 | } | |
1535 | ||
a0fef654 | 1536 | if (!s->serial) { |
f8b6cc00 | 1537 | /* try to fall back to value set with legacy -drive serial=... */ |
44740c38 | 1538 | dinfo = drive_get_by_blockdev(s->qdev.conf.bs); |
3e1c0c9a | 1539 | if (*dinfo->serial) { |
7267c094 | 1540 | s->serial = g_strdup(dinfo->serial); |
3e1c0c9a | 1541 | } |
a0fef654 MA |
1542 | } |
1543 | ||
552fee93 | 1544 | if (!s->version) { |
7267c094 | 1545 | s->version = g_strdup(QEMU_VERSION); |
552fee93 MA |
1546 | } |
1547 | ||
44740c38 | 1548 | if (bdrv_is_sg(s->qdev.conf.bs)) { |
1ecda02b | 1549 | error_report("scsi-disk: unwanted /dev/sg*"); |
32bb404a MA |
1550 | return -1; |
1551 | } | |
1552 | ||
e39be482 | 1553 | if (s->removable) { |
44740c38 | 1554 | bdrv_set_dev_ops(s->qdev.conf.bs, &scsi_cd_block_ops, s); |
2e5d83bb | 1555 | } |
44740c38 | 1556 | bdrv_set_buffer_alignment(s->qdev.conf.bs, s->qdev.blocksize); |
8cfacf07 | 1557 | |
44740c38 | 1558 | bdrv_iostatus_enable(s->qdev.conf.bs); |
7082826e | 1559 | add_boot_device_path(s->qdev.conf.bootindex, &dev->qdev, NULL); |
d52affa7 GH |
1560 | return 0; |
1561 | } | |
1562 | ||
b443ae67 MA |
1563 | static int scsi_hd_initfn(SCSIDevice *dev) |
1564 | { | |
e39be482 PB |
1565 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, dev); |
1566 | s->qdev.blocksize = s->qdev.conf.logical_block_size; | |
1567 | s->qdev.type = TYPE_DISK; | |
1568 | return scsi_initfn(&s->qdev); | |
b443ae67 MA |
1569 | } |
1570 | ||
1571 | static int scsi_cd_initfn(SCSIDevice *dev) | |
1572 | { | |
e39be482 PB |
1573 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, dev); |
1574 | s->qdev.blocksize = 2048; | |
1575 | s->qdev.type = TYPE_ROM; | |
1576 | s->removable = true; | |
1577 | return scsi_initfn(&s->qdev); | |
b443ae67 MA |
1578 | } |
1579 | ||
1580 | static int scsi_disk_initfn(SCSIDevice *dev) | |
1581 | { | |
95b5edcd | 1582 | DriveInfo *dinfo; |
b443ae67 MA |
1583 | |
1584 | if (!dev->conf.bs) { | |
e39be482 | 1585 | return scsi_initfn(dev); /* ... and die there */ |
b443ae67 MA |
1586 | } |
1587 | ||
e39be482 PB |
1588 | dinfo = drive_get_by_blockdev(dev->conf.bs); |
1589 | if (dinfo->media_cd) { | |
1590 | return scsi_cd_initfn(dev); | |
1591 | } else { | |
1592 | return scsi_hd_initfn(dev); | |
1593 | } | |
b443ae67 MA |
1594 | } |
1595 | ||
adcf2754 | 1596 | static const SCSIReqOps scsi_disk_reqops = { |
8dbd4574 | 1597 | .size = sizeof(SCSIDiskReq), |
12010e7b PB |
1598 | .free_req = scsi_free_request, |
1599 | .send_command = scsi_send_command, | |
1600 | .read_data = scsi_read_data, | |
1601 | .write_data = scsi_write_data, | |
1602 | .cancel_io = scsi_cancel_io, | |
1603 | .get_buf = scsi_get_buf, | |
8dbd4574 PB |
1604 | }; |
1605 | ||
63db0f0e PB |
1606 | static SCSIRequest *scsi_new_request(SCSIDevice *d, uint32_t tag, uint32_t lun, |
1607 | uint8_t *buf, void *hba_private) | |
8dbd4574 PB |
1608 | { |
1609 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, d); | |
1610 | SCSIRequest *req; | |
8dbd4574 PB |
1611 | |
1612 | req = scsi_req_alloc(&scsi_disk_reqops, &s->qdev, tag, lun, hba_private); | |
8dbd4574 PB |
1613 | return req; |
1614 | } | |
1615 | ||
336a6915 PB |
1616 | #ifdef __linux__ |
1617 | static int get_device_type(SCSIDiskState *s) | |
1618 | { | |
1619 | BlockDriverState *bdrv = s->qdev.conf.bs; | |
1620 | uint8_t cmd[16]; | |
1621 | uint8_t buf[36]; | |
1622 | uint8_t sensebuf[8]; | |
1623 | sg_io_hdr_t io_header; | |
1624 | int ret; | |
1625 | ||
1626 | memset(cmd, 0, sizeof(cmd)); | |
1627 | memset(buf, 0, sizeof(buf)); | |
1628 | cmd[0] = INQUIRY; | |
1629 | cmd[4] = sizeof(buf); | |
1630 | ||
1631 | memset(&io_header, 0, sizeof(io_header)); | |
1632 | io_header.interface_id = 'S'; | |
1633 | io_header.dxfer_direction = SG_DXFER_FROM_DEV; | |
1634 | io_header.dxfer_len = sizeof(buf); | |
1635 | io_header.dxferp = buf; | |
1636 | io_header.cmdp = cmd; | |
1637 | io_header.cmd_len = sizeof(cmd); | |
1638 | io_header.mx_sb_len = sizeof(sensebuf); | |
1639 | io_header.sbp = sensebuf; | |
1640 | io_header.timeout = 6000; /* XXX */ | |
1641 | ||
1642 | ret = bdrv_ioctl(bdrv, SG_IO, &io_header); | |
1643 | if (ret < 0 || io_header.driver_status || io_header.host_status) { | |
1644 | return -1; | |
1645 | } | |
1646 | s->qdev.type = buf[0]; | |
1647 | s->removable = (buf[1] & 0x80) != 0; | |
1648 | return 0; | |
1649 | } | |
1650 | ||
1651 | static int scsi_block_initfn(SCSIDevice *dev) | |
1652 | { | |
1653 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, dev); | |
1654 | int sg_version; | |
1655 | int rc; | |
1656 | ||
1657 | if (!s->qdev.conf.bs) { | |
1658 | error_report("scsi-block: drive property not set"); | |
1659 | return -1; | |
1660 | } | |
1661 | ||
1662 | /* check we are using a driver managing SG_IO (version 3 and after) */ | |
1663 | if (bdrv_ioctl(s->qdev.conf.bs, SG_GET_VERSION_NUM, &sg_version) < 0 || | |
1664 | sg_version < 30000) { | |
1665 | error_report("scsi-block: scsi generic interface too old"); | |
1666 | return -1; | |
1667 | } | |
1668 | ||
1669 | /* get device type from INQUIRY data */ | |
1670 | rc = get_device_type(s); | |
1671 | if (rc < 0) { | |
1672 | error_report("scsi-block: INQUIRY failed"); | |
1673 | return -1; | |
1674 | } | |
1675 | ||
1676 | /* Make a guess for the block size, we'll fix it when the guest sends. | |
1677 | * READ CAPACITY. If they don't, they likely would assume these sizes | |
1678 | * anyway. (TODO: check in /sys). | |
1679 | */ | |
1680 | if (s->qdev.type == TYPE_ROM || s->qdev.type == TYPE_WORM) { | |
1681 | s->qdev.blocksize = 2048; | |
1682 | } else { | |
1683 | s->qdev.blocksize = 512; | |
1684 | } | |
1685 | return scsi_initfn(&s->qdev); | |
1686 | } | |
1687 | ||
1688 | static SCSIRequest *scsi_block_new_request(SCSIDevice *d, uint32_t tag, | |
1689 | uint32_t lun, uint8_t *buf, | |
1690 | void *hba_private) | |
1691 | { | |
1692 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, d); | |
1693 | ||
1694 | switch (buf[0]) { | |
1695 | case READ_6: | |
1696 | case READ_10: | |
1697 | case READ_12: | |
1698 | case READ_16: | |
1699 | case WRITE_6: | |
1700 | case WRITE_10: | |
1701 | case WRITE_12: | |
1702 | case WRITE_16: | |
1703 | case WRITE_VERIFY_10: | |
1704 | case WRITE_VERIFY_12: | |
1705 | case WRITE_VERIFY_16: | |
33ebad12 PB |
1706 | /* MMC writing cannot be done via pread/pwrite, because it sometimes |
1707 | * involves writing beyond the maximum LBA or to negative LBA (lead-in). | |
1708 | * And once you do these writes, reading from the block device is | |
1709 | * unreliable, too. It is even possible that reads deliver random data | |
1710 | * from the host page cache (this is probably a Linux bug). | |
1711 | * | |
1712 | * We might use scsi_disk_reqops as long as no writing commands are | |
1713 | * seen, but performance usually isn't paramount on optical media. So, | |
1714 | * just make scsi-block operate the same as scsi-generic for them. | |
1715 | */ | |
1716 | if (s->qdev.type != TYPE_ROM) { | |
1717 | return scsi_req_alloc(&scsi_disk_reqops, &s->qdev, tag, lun, | |
1718 | hba_private); | |
1719 | } | |
336a6915 PB |
1720 | } |
1721 | ||
1722 | return scsi_req_alloc(&scsi_generic_req_ops, &s->qdev, tag, lun, | |
1723 | hba_private); | |
1724 | } | |
1725 | #endif | |
1726 | ||
b443ae67 MA |
1727 | #define DEFINE_SCSI_DISK_PROPERTIES() \ |
1728 | DEFINE_BLOCK_PROPERTIES(SCSIDiskState, qdev.conf), \ | |
1729 | DEFINE_PROP_STRING("ver", SCSIDiskState, version), \ | |
1730 | DEFINE_PROP_STRING("serial", SCSIDiskState, serial) | |
1731 | ||
1732 | static SCSIDeviceInfo scsi_disk_info[] = { | |
1733 | { | |
1734 | .qdev.name = "scsi-hd", | |
1735 | .qdev.fw_name = "disk", | |
1736 | .qdev.desc = "virtual SCSI disk", | |
1737 | .qdev.size = sizeof(SCSIDiskState), | |
1738 | .qdev.reset = scsi_disk_reset, | |
1739 | .init = scsi_hd_initfn, | |
1740 | .destroy = scsi_destroy, | |
5c6c0e51 | 1741 | .alloc_req = scsi_new_request, |
8a9c16f6 | 1742 | .unit_attention_reported = scsi_disk_unit_attention_reported, |
b443ae67 MA |
1743 | .qdev.props = (Property[]) { |
1744 | DEFINE_SCSI_DISK_PROPERTIES(), | |
1745 | DEFINE_PROP_BIT("removable", SCSIDiskState, removable, 0, false), | |
1746 | DEFINE_PROP_END_OF_LIST(), | |
1747 | } | |
1748 | },{ | |
1749 | .qdev.name = "scsi-cd", | |
1750 | .qdev.fw_name = "disk", | |
1751 | .qdev.desc = "virtual SCSI CD-ROM", | |
1752 | .qdev.size = sizeof(SCSIDiskState), | |
1753 | .qdev.reset = scsi_disk_reset, | |
1754 | .init = scsi_cd_initfn, | |
1755 | .destroy = scsi_destroy, | |
5c6c0e51 | 1756 | .alloc_req = scsi_new_request, |
8a9c16f6 | 1757 | .unit_attention_reported = scsi_disk_unit_attention_reported, |
b443ae67 MA |
1758 | .qdev.props = (Property[]) { |
1759 | DEFINE_SCSI_DISK_PROPERTIES(), | |
1760 | DEFINE_PROP_END_OF_LIST(), | |
1761 | }, | |
336a6915 PB |
1762 | #ifdef __linux__ |
1763 | },{ | |
1764 | .qdev.name = "scsi-block", | |
1765 | .qdev.fw_name = "disk", | |
1766 | .qdev.desc = "SCSI block device passthrough", | |
1767 | .qdev.size = sizeof(SCSIDiskState), | |
1768 | .qdev.reset = scsi_disk_reset, | |
1769 | .init = scsi_block_initfn, | |
1770 | .destroy = scsi_destroy, | |
1771 | .alloc_req = scsi_block_new_request, | |
1772 | .qdev.props = (Property[]) { | |
1773 | DEFINE_SCSI_DISK_PROPERTIES(), | |
1774 | DEFINE_PROP_END_OF_LIST(), | |
1775 | }, | |
1776 | #endif | |
b443ae67 MA |
1777 | },{ |
1778 | .qdev.name = "scsi-disk", /* legacy -device scsi-disk */ | |
1779 | .qdev.fw_name = "disk", | |
1780 | .qdev.desc = "virtual SCSI disk or CD-ROM (legacy)", | |
1781 | .qdev.size = sizeof(SCSIDiskState), | |
1782 | .qdev.reset = scsi_disk_reset, | |
1783 | .init = scsi_disk_initfn, | |
1784 | .destroy = scsi_destroy, | |
5c6c0e51 | 1785 | .alloc_req = scsi_new_request, |
8a9c16f6 | 1786 | .unit_attention_reported = scsi_disk_unit_attention_reported, |
b443ae67 MA |
1787 | .qdev.props = (Property[]) { |
1788 | DEFINE_SCSI_DISK_PROPERTIES(), | |
1789 | DEFINE_PROP_BIT("removable", SCSIDiskState, removable, 0, false), | |
1790 | DEFINE_PROP_END_OF_LIST(), | |
1791 | } | |
1792 | } | |
d52affa7 GH |
1793 | }; |
1794 | ||
1795 | static void scsi_disk_register_devices(void) | |
1796 | { | |
b443ae67 MA |
1797 | int i; |
1798 | ||
1799 | for (i = 0; i < ARRAY_SIZE(scsi_disk_info); i++) { | |
1800 | scsi_qdev_register(&scsi_disk_info[i]); | |
1801 | } | |
8ccc2ace | 1802 | } |
d52affa7 | 1803 | device_init(scsi_disk_register_devices) |