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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 | ||
a4ab4792 | 31 | #include "qemu/osdep.h" |
da34e65c | 32 | #include "qapi/error.h" |
1de7afc9 | 33 | #include "qemu/error-report.h" |
0d09e41a PB |
34 | #include "hw/scsi/scsi.h" |
35 | #include "block/scsi.h" | |
9c17d615 | 36 | #include "sysemu/sysemu.h" |
4be74634 | 37 | #include "sysemu/block-backend.h" |
9c17d615 | 38 | #include "sysemu/blockdev.h" |
0d09e41a | 39 | #include "hw/block/block.h" |
9c17d615 | 40 | #include "sysemu/dma.h" |
f348b6d1 | 41 | #include "qemu/cutils.h" |
22864256 | 42 | |
336a6915 PB |
43 | #ifdef __linux |
44 | #include <scsi/sg.h> | |
45 | #endif | |
46 | ||
84f94a9a | 47 | #define SCSI_WRITE_SAME_MAX 524288 |
215e47b9 PB |
48 | #define SCSI_DMA_BUF_SIZE 131072 |
49 | #define SCSI_MAX_INQUIRY_LEN 256 | |
50 | #define SCSI_MAX_MODE_LEN 256 | |
51 | ||
52 | #define DEFAULT_DISCARD_GRANULARITY 4096 | |
8a1bd297 | 53 | #define DEFAULT_MAX_UNMAP_SIZE (1 << 30) /* 1 GB */ |
f8e1f533 | 54 | #define DEFAULT_MAX_IO_SIZE INT_MAX /* 2 GB - 1 block */ |
a917d384 | 55 | |
993935f3 PB |
56 | #define TYPE_SCSI_DISK_BASE "scsi-disk-base" |
57 | ||
fcaafb10 PB |
58 | #define SCSI_DISK_BASE(obj) \ |
59 | OBJECT_CHECK(SCSIDiskState, (obj), TYPE_SCSI_DISK_BASE) | |
60 | #define SCSI_DISK_BASE_CLASS(klass) \ | |
61 | OBJECT_CLASS_CHECK(SCSIDiskClass, (klass), TYPE_SCSI_DISK_BASE) | |
62 | #define SCSI_DISK_BASE_GET_CLASS(obj) \ | |
63 | OBJECT_GET_CLASS(SCSIDiskClass, (obj), TYPE_SCSI_DISK_BASE) | |
64 | ||
65 | typedef struct SCSIDiskClass { | |
66 | SCSIDeviceClass parent_class; | |
67 | DMAIOFunc *dma_readv; | |
68 | DMAIOFunc *dma_writev; | |
94f8ba11 | 69 | bool (*need_fua_emulation)(SCSICommand *cmd); |
fcaafb10 | 70 | } SCSIDiskClass; |
d52affa7 | 71 | |
4c41d2ef GH |
72 | typedef struct SCSIDiskReq { |
73 | SCSIRequest req; | |
a917d384 | 74 | /* Both sector and sector_count are in terms of qemu 512 byte blocks. */ |
e035b43d AL |
75 | uint64_t sector; |
76 | uint32_t sector_count; | |
7285477a | 77 | uint32_t buflen; |
a0e66a69 | 78 | bool started; |
94f8ba11 | 79 | bool need_fua_emulation; |
c87c0672 AL |
80 | struct iovec iov; |
81 | QEMUIOVector qiov; | |
a597e79c | 82 | BlockAcctCookie acct; |
8fdc7839 | 83 | unsigned char *status; |
4c41d2ef | 84 | } SCSIDiskReq; |
a917d384 | 85 | |
18e673b8 PH |
86 | #define SCSI_DISK_F_REMOVABLE 0 |
87 | #define SCSI_DISK_F_DPOFUA 1 | |
88 | #define SCSI_DISK_F_NO_REMOVABLE_DEVOPS 2 | |
bfe3d7ac | 89 | |
fcaafb10 | 90 | typedef struct SCSIDiskState |
a917d384 | 91 | { |
d52affa7 | 92 | SCSIDevice qdev; |
bfe3d7ac | 93 | uint32_t features; |
8a9c16f6 | 94 | bool media_changed; |
3c2f7c12 | 95 | bool media_event; |
4480de19 | 96 | bool eject_request; |
64cc2284 | 97 | uint16_t port_index; |
8a1bd297 | 98 | uint64_t max_unmap_size; |
f8e1f533 | 99 | uint64_t max_io_size; |
213189ab | 100 | QEMUBH *bh; |
383b4d9b | 101 | char *version; |
a0fef654 | 102 | char *serial; |
353815aa DF |
103 | char *vendor; |
104 | char *product; | |
ece0d5e9 | 105 | bool tray_open; |
81b1008d | 106 | bool tray_locked; |
fcaafb10 | 107 | } SCSIDiskState; |
2e5d83bb | 108 | |
d7628080 | 109 | static int scsi_handle_rw_error(SCSIDiskReq *r, int error, bool acct_failed); |
5dba48a8 | 110 | |
ad2d30f7 | 111 | static void scsi_free_request(SCSIRequest *req) |
4d611c9a | 112 | { |
ad2d30f7 PB |
113 | SCSIDiskReq *r = DO_UPCAST(SCSIDiskReq, req, req); |
114 | ||
db4c34c3 | 115 | qemu_vfree(r->iov.iov_base); |
4d611c9a PB |
116 | } |
117 | ||
b45ef674 PB |
118 | /* Helper function for command completion with sense. */ |
119 | static void scsi_check_condition(SCSIDiskReq *r, SCSISense sense) | |
ed3a34a3 | 120 | { |
02fa69b6 BS |
121 | DPRINTF("Command complete tag=0x%x sense=%d/%d/%d\n", |
122 | r->req.tag, sense.key, sense.asc, sense.ascq); | |
b45ef674 PB |
123 | scsi_req_build_sense(&r->req, sense); |
124 | scsi_req_complete(&r->req, CHECK_CONDITION); | |
4d611c9a PB |
125 | } |
126 | ||
03c90063 | 127 | static void scsi_init_iovec(SCSIDiskReq *r, size_t size) |
103b40f5 | 128 | { |
7285477a PB |
129 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); |
130 | ||
131 | if (!r->iov.iov_base) { | |
43b978b9 | 132 | r->buflen = size; |
4be74634 | 133 | r->iov.iov_base = blk_blockalign(s->qdev.conf.blk, r->buflen); |
7285477a PB |
134 | } |
135 | r->iov.iov_len = MIN(r->sector_count * 512, r->buflen); | |
103b40f5 | 136 | qemu_iovec_init_external(&r->qiov, &r->iov, 1); |
103b40f5 PB |
137 | } |
138 | ||
43b978b9 PB |
139 | static void scsi_disk_save_request(QEMUFile *f, SCSIRequest *req) |
140 | { | |
141 | SCSIDiskReq *r = DO_UPCAST(SCSIDiskReq, req, req); | |
142 | ||
143 | qemu_put_be64s(f, &r->sector); | |
144 | qemu_put_be32s(f, &r->sector_count); | |
145 | qemu_put_be32s(f, &r->buflen); | |
18eef3bc GH |
146 | if (r->buflen) { |
147 | if (r->req.cmd.mode == SCSI_XFER_TO_DEV) { | |
148 | qemu_put_buffer(f, r->iov.iov_base, r->iov.iov_len); | |
149 | } else if (!req->retry) { | |
150 | uint32_t len = r->iov.iov_len; | |
151 | qemu_put_be32s(f, &len); | |
152 | qemu_put_buffer(f, r->iov.iov_base, r->iov.iov_len); | |
153 | } | |
43b978b9 PB |
154 | } |
155 | } | |
156 | ||
157 | static void scsi_disk_load_request(QEMUFile *f, SCSIRequest *req) | |
158 | { | |
159 | SCSIDiskReq *r = DO_UPCAST(SCSIDiskReq, req, req); | |
160 | ||
161 | qemu_get_be64s(f, &r->sector); | |
162 | qemu_get_be32s(f, &r->sector_count); | |
163 | qemu_get_be32s(f, &r->buflen); | |
164 | if (r->buflen) { | |
165 | scsi_init_iovec(r, r->buflen); | |
166 | if (r->req.cmd.mode == SCSI_XFER_TO_DEV) { | |
167 | qemu_get_buffer(f, r->iov.iov_base, r->iov.iov_len); | |
18eef3bc GH |
168 | } else if (!r->req.retry) { |
169 | uint32_t len; | |
170 | qemu_get_be32s(f, &len); | |
171 | r->iov.iov_len = len; | |
172 | assert(r->iov.iov_len <= r->buflen); | |
173 | qemu_get_buffer(f, r->iov.iov_base, r->iov.iov_len); | |
43b978b9 PB |
174 | } |
175 | } | |
176 | ||
177 | qemu_iovec_init_external(&r->qiov, &r->iov, 1); | |
178 | } | |
179 | ||
5b956f41 PB |
180 | static bool scsi_disk_req_check_error(SCSIDiskReq *r, int ret, bool acct_failed) |
181 | { | |
182 | if (r->req.io_canceled) { | |
183 | scsi_req_cancel_complete(&r->req); | |
184 | return true; | |
185 | } | |
186 | ||
187 | if (ret < 0) { | |
188 | return scsi_handle_rw_error(r, -ret, acct_failed); | |
189 | } | |
190 | ||
8fdc7839 PB |
191 | if (r->status && *r->status) { |
192 | if (acct_failed) { | |
193 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); | |
194 | block_acct_failed(blk_get_stats(s->qdev.conf.blk), &r->acct); | |
195 | } | |
196 | scsi_req_complete(&r->req, *r->status); | |
197 | return true; | |
198 | } | |
199 | ||
5b956f41 PB |
200 | return false; |
201 | } | |
202 | ||
c1b35247 | 203 | static void scsi_aio_complete(void *opaque, int ret) |
5d0d2467 PB |
204 | { |
205 | SCSIDiskReq *r = (SCSIDiskReq *)opaque; | |
206 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); | |
207 | ||
46e3f30e PB |
208 | assert(r->req.aiocb != NULL); |
209 | r->req.aiocb = NULL; | |
5b956f41 | 210 | if (scsi_disk_req_check_error(r, ret, true)) { |
0c92e0e6 PB |
211 | goto done; |
212 | } | |
5d0d2467 | 213 | |
d7628080 | 214 | block_acct_done(blk_get_stats(s->qdev.conf.blk), &r->acct); |
5d0d2467 PB |
215 | scsi_req_complete(&r->req, GOOD); |
216 | ||
217 | done: | |
3df9caf8 | 218 | scsi_req_unref(&r->req); |
5d0d2467 PB |
219 | } |
220 | ||
7e8c49c5 PB |
221 | static bool scsi_is_cmd_fua(SCSICommand *cmd) |
222 | { | |
223 | switch (cmd->buf[0]) { | |
224 | case READ_10: | |
225 | case READ_12: | |
226 | case READ_16: | |
227 | case WRITE_10: | |
228 | case WRITE_12: | |
229 | case WRITE_16: | |
230 | return (cmd->buf[1] & 8) != 0; | |
231 | ||
7f64f8e2 PB |
232 | case VERIFY_10: |
233 | case VERIFY_12: | |
234 | case VERIFY_16: | |
7e8c49c5 PB |
235 | case WRITE_VERIFY_10: |
236 | case WRITE_VERIFY_12: | |
237 | case WRITE_VERIFY_16: | |
238 | return true; | |
239 | ||
240 | case READ_6: | |
241 | case WRITE_6: | |
242 | default: | |
243 | return false; | |
244 | } | |
245 | } | |
246 | ||
247 | static void scsi_write_do_fua(SCSIDiskReq *r) | |
248 | { | |
249 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); | |
250 | ||
5fd2b563 | 251 | assert(r->req.aiocb == NULL); |
5b956f41 | 252 | assert(!r->req.io_canceled); |
0c92e0e6 | 253 | |
94f8ba11 | 254 | if (r->need_fua_emulation) { |
4be74634 | 255 | block_acct_start(blk_get_stats(s->qdev.conf.blk), &r->acct, 0, |
5366d0c8 | 256 | BLOCK_ACCT_FLUSH); |
4be74634 | 257 | r->req.aiocb = blk_aio_flush(s->qdev.conf.blk, scsi_aio_complete, r); |
7e8c49c5 PB |
258 | return; |
259 | } | |
260 | ||
261 | scsi_req_complete(&r->req, GOOD); | |
3df9caf8 | 262 | scsi_req_unref(&r->req); |
7e8c49c5 PB |
263 | } |
264 | ||
5fd2b563 | 265 | static void scsi_dma_complete_noio(SCSIDiskReq *r, int ret) |
a917d384 | 266 | { |
5fd2b563 | 267 | assert(r->req.aiocb == NULL); |
5b956f41 | 268 | if (scsi_disk_req_check_error(r, ret, false)) { |
0c92e0e6 PB |
269 | goto done; |
270 | } | |
a597e79c | 271 | |
b77912a7 PB |
272 | r->sector += r->sector_count; |
273 | r->sector_count = 0; | |
7e8c49c5 PB |
274 | if (r->req.cmd.mode == SCSI_XFER_TO_DEV) { |
275 | scsi_write_do_fua(r); | |
276 | return; | |
277 | } else { | |
278 | scsi_req_complete(&r->req, GOOD); | |
279 | } | |
c7bae6a7 PB |
280 | |
281 | done: | |
3df9caf8 | 282 | scsi_req_unref(&r->req); |
4d611c9a PB |
283 | } |
284 | ||
ef8489d4 PB |
285 | static void scsi_dma_complete(void *opaque, int ret) |
286 | { | |
287 | SCSIDiskReq *r = (SCSIDiskReq *)opaque; | |
5fd2b563 | 288 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); |
ef8489d4 PB |
289 | |
290 | assert(r->req.aiocb != NULL); | |
5fd2b563 PB |
291 | r->req.aiocb = NULL; |
292 | ||
d7628080 AG |
293 | if (ret < 0) { |
294 | block_acct_failed(blk_get_stats(s->qdev.conf.blk), &r->acct); | |
295 | } else { | |
296 | block_acct_done(blk_get_stats(s->qdev.conf.blk), &r->acct); | |
297 | } | |
5fd2b563 | 298 | scsi_dma_complete_noio(r, ret); |
ef8489d4 PB |
299 | } |
300 | ||
b77912a7 | 301 | static void scsi_read_complete(void * opaque, int ret) |
0a4ac106 PB |
302 | { |
303 | SCSIDiskReq *r = (SCSIDiskReq *)opaque; | |
304 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); | |
b77912a7 | 305 | int n; |
0a4ac106 | 306 | |
46e3f30e PB |
307 | assert(r->req.aiocb != NULL); |
308 | r->req.aiocb = NULL; | |
5b956f41 | 309 | if (scsi_disk_req_check_error(r, ret, true)) { |
0c92e0e6 PB |
310 | goto done; |
311 | } | |
0a4ac106 | 312 | |
d7628080 | 313 | block_acct_done(blk_get_stats(s->qdev.conf.blk), &r->acct); |
b77912a7 PB |
314 | DPRINTF("Data ready tag=0x%x len=%zd\n", r->req.tag, r->qiov.size); |
315 | ||
316 | n = r->qiov.size / 512; | |
317 | r->sector += n; | |
318 | r->sector_count -= n; | |
319 | scsi_req_data(&r->req, r->qiov.size); | |
c7bae6a7 PB |
320 | |
321 | done: | |
3df9caf8 | 322 | scsi_req_unref(&r->req); |
0a4ac106 | 323 | } |
5dba48a8 | 324 | |
ac668426 | 325 | /* Actually issue a read to the block device. */ |
5fd2b563 | 326 | static void scsi_do_read(SCSIDiskReq *r, int ret) |
ac668426 | 327 | { |
ac668426 | 328 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); |
fcaafb10 | 329 | SCSIDiskClass *sdc = (SCSIDiskClass *) object_get_class(OBJECT(s)); |
ac668426 | 330 | |
5fd2b563 | 331 | assert (r->req.aiocb == NULL); |
5b956f41 | 332 | if (scsi_disk_req_check_error(r, ret, false)) { |
0c92e0e6 PB |
333 | goto done; |
334 | } | |
ac668426 | 335 | |
31e8fd86 PB |
336 | /* The request is used as the AIO opaque value, so add a ref. */ |
337 | scsi_req_ref(&r->req); | |
338 | ||
ac668426 | 339 | if (r->req.sg) { |
4be74634 | 340 | dma_acct_start(s->qdev.conf.blk, &r->acct, r->req.sg, BLOCK_ACCT_READ); |
ac668426 | 341 | r->req.resid -= r->req.sg->size; |
fcaafb10 PB |
342 | r->req.aiocb = dma_blk_io(blk_get_aio_context(s->qdev.conf.blk), |
343 | r->req.sg, r->sector << BDRV_SECTOR_BITS, | |
99868af3 | 344 | BDRV_SECTOR_SIZE, |
fcaafb10 PB |
345 | sdc->dma_readv, r, scsi_dma_complete, r, |
346 | DMA_DIRECTION_FROM_DEVICE); | |
ac668426 | 347 | } else { |
03c90063 | 348 | scsi_init_iovec(r, SCSI_DMA_BUF_SIZE); |
4be74634 | 349 | block_acct_start(blk_get_stats(s->qdev.conf.blk), &r->acct, |
03c90063 | 350 | r->qiov.size, BLOCK_ACCT_READ); |
890e48d7 | 351 | r->req.aiocb = sdc->dma_readv(r->sector << BDRV_SECTOR_BITS, &r->qiov, |
fcaafb10 | 352 | scsi_read_complete, r, r); |
ac668426 PB |
353 | } |
354 | ||
355 | done: | |
3df9caf8 | 356 | scsi_req_unref(&r->req); |
ac668426 PB |
357 | } |
358 | ||
5fd2b563 PB |
359 | static void scsi_do_read_cb(void *opaque, int ret) |
360 | { | |
361 | SCSIDiskReq *r = (SCSIDiskReq *)opaque; | |
362 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); | |
363 | ||
364 | assert (r->req.aiocb != NULL); | |
365 | r->req.aiocb = NULL; | |
366 | ||
d7628080 AG |
367 | if (ret < 0) { |
368 | block_acct_failed(blk_get_stats(s->qdev.conf.blk), &r->acct); | |
369 | } else { | |
370 | block_acct_done(blk_get_stats(s->qdev.conf.blk), &r->acct); | |
371 | } | |
5fd2b563 PB |
372 | scsi_do_read(opaque, ret); |
373 | } | |
374 | ||
5c6c0e51 HR |
375 | /* Read more data from scsi device into buffer. */ |
376 | static void scsi_read_data(SCSIRequest *req) | |
2e5d83bb | 377 | { |
5c6c0e51 | 378 | SCSIDiskReq *r = DO_UPCAST(SCSIDiskReq, req, req); |
5dba48a8 | 379 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); |
ac668426 | 380 | bool first; |
2e5d83bb | 381 | |
a917d384 PB |
382 | DPRINTF("Read sector_count=%d\n", r->sector_count); |
383 | if (r->sector_count == 0) { | |
b45ef674 PB |
384 | /* This also clears the sense buffer for REQUEST SENSE. */ |
385 | scsi_req_complete(&r->req, GOOD); | |
a917d384 | 386 | return; |
2e5d83bb PB |
387 | } |
388 | ||
6fa2c95f SH |
389 | /* No data transfer may already be in progress */ |
390 | assert(r->req.aiocb == NULL); | |
391 | ||
c7bae6a7 PB |
392 | /* The request is used as the AIO opaque value, so add a ref. */ |
393 | scsi_req_ref(&r->req); | |
efb9ee02 HR |
394 | if (r->req.cmd.mode == SCSI_XFER_TO_DEV) { |
395 | DPRINTF("Data transfer direction invalid\n"); | |
396 | scsi_read_complete(r, -EINVAL); | |
397 | return; | |
398 | } | |
399 | ||
cd723b85 | 400 | if (!blk_is_available(req->dev->conf.blk)) { |
a1aff5bf | 401 | scsi_read_complete(r, -ENOMEDIUM); |
c7bae6a7 | 402 | return; |
a1aff5bf | 403 | } |
c7bae6a7 | 404 | |
ac668426 | 405 | first = !r->started; |
a0e66a69 | 406 | r->started = true; |
94f8ba11 | 407 | if (first && r->need_fua_emulation) { |
4be74634 | 408 | block_acct_start(blk_get_stats(s->qdev.conf.blk), &r->acct, 0, |
5366d0c8 | 409 | BLOCK_ACCT_FLUSH); |
5fd2b563 | 410 | r->req.aiocb = blk_aio_flush(s->qdev.conf.blk, scsi_do_read_cb, r); |
5d0d2467 | 411 | } else { |
ac668426 | 412 | scsi_do_read(r, 0); |
5d0d2467 | 413 | } |
2e5d83bb PB |
414 | } |
415 | ||
c7bae6a7 PB |
416 | /* |
417 | * scsi_handle_rw_error has two return values. 0 means that the error | |
418 | * must be ignored, 1 means that the error has been processed and the | |
419 | * caller should not do anything else for this request. Note that | |
420 | * scsi_handle_rw_error always manages its reference counts, independent | |
421 | * of the return value. | |
422 | */ | |
d7628080 | 423 | static int scsi_handle_rw_error(SCSIDiskReq *r, int error, bool acct_failed) |
5dba48a8 | 424 | { |
c85a7a00 | 425 | bool is_read = (r->req.cmd.mode == SCSI_XFER_FROM_DEV); |
4c41d2ef | 426 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); |
4be74634 MA |
427 | BlockErrorAction action = blk_get_error_action(s->qdev.conf.blk, |
428 | is_read, error); | |
ea8a5d7f | 429 | |
a589569f | 430 | if (action == BLOCK_ERROR_ACTION_REPORT) { |
d7628080 AG |
431 | if (acct_failed) { |
432 | block_acct_failed(blk_get_stats(s->qdev.conf.blk), &r->acct); | |
433 | } | |
efb9ee02 | 434 | switch (error) { |
7e218df5 PB |
435 | case ENOMEDIUM: |
436 | scsi_check_condition(r, SENSE_CODE(NO_MEDIUM)); | |
437 | break; | |
efb9ee02 | 438 | case ENOMEM: |
b45ef674 | 439 | scsi_check_condition(r, SENSE_CODE(TARGET_FAILURE)); |
efb9ee02 HR |
440 | break; |
441 | case EINVAL: | |
b45ef674 | 442 | scsi_check_condition(r, SENSE_CODE(INVALID_FIELD)); |
efb9ee02 | 443 | break; |
703dd81a PB |
444 | case ENOSPC: |
445 | scsi_check_condition(r, SENSE_CODE(SPACE_ALLOC_FAILED)); | |
446 | break; | |
efb9ee02 | 447 | default: |
b45ef674 | 448 | scsi_check_condition(r, SENSE_CODE(IO_ERROR)); |
efb9ee02 | 449 | break; |
a1f0cce2 | 450 | } |
ea8a5d7f | 451 | } |
4be74634 | 452 | blk_error_action(s->qdev.conf.blk, action, is_read, error); |
a589569f | 453 | if (action == BLOCK_ERROR_ACTION_STOP) { |
3e1caa5f PB |
454 | scsi_req_retry(&r->req); |
455 | } | |
a589569f | 456 | return action != BLOCK_ERROR_ACTION_IGNORE; |
ea8a5d7f AL |
457 | } |
458 | ||
5fd2b563 | 459 | static void scsi_write_complete_noio(SCSIDiskReq *r, int ret) |
4d611c9a | 460 | { |
ea8a5d7f AL |
461 | uint32_t n; |
462 | ||
5fd2b563 | 463 | assert (r->req.aiocb == NULL); |
5b956f41 | 464 | if (scsi_disk_req_check_error(r, ret, false)) { |
0c92e0e6 PB |
465 | goto done; |
466 | } | |
a597e79c | 467 | |
103b40f5 | 468 | n = r->qiov.size / 512; |
ea8a5d7f AL |
469 | r->sector += n; |
470 | r->sector_count -= n; | |
a917d384 | 471 | if (r->sector_count == 0) { |
7e8c49c5 PB |
472 | scsi_write_do_fua(r); |
473 | return; | |
a917d384 | 474 | } else { |
43b978b9 | 475 | scsi_init_iovec(r, SCSI_DMA_BUF_SIZE); |
79fb50bb | 476 | DPRINTF("Write complete tag=0x%x more=%zd\n", r->req.tag, r->qiov.size); |
103b40f5 | 477 | scsi_req_data(&r->req, r->qiov.size); |
4d611c9a | 478 | } |
c7bae6a7 PB |
479 | |
480 | done: | |
3df9caf8 | 481 | scsi_req_unref(&r->req); |
4d611c9a PB |
482 | } |
483 | ||
5fd2b563 PB |
484 | static void scsi_write_complete(void * opaque, int ret) |
485 | { | |
486 | SCSIDiskReq *r = (SCSIDiskReq *)opaque; | |
487 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); | |
488 | ||
489 | assert (r->req.aiocb != NULL); | |
490 | r->req.aiocb = NULL; | |
491 | ||
d7628080 AG |
492 | if (ret < 0) { |
493 | block_acct_failed(blk_get_stats(s->qdev.conf.blk), &r->acct); | |
494 | } else { | |
495 | block_acct_done(blk_get_stats(s->qdev.conf.blk), &r->acct); | |
496 | } | |
5fd2b563 PB |
497 | scsi_write_complete_noio(r, ret); |
498 | } | |
499 | ||
42741212 | 500 | static void scsi_write_data(SCSIRequest *req) |
ea8a5d7f | 501 | { |
5c6c0e51 | 502 | SCSIDiskReq *r = DO_UPCAST(SCSIDiskReq, req, req); |
4c41d2ef | 503 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); |
fcaafb10 | 504 | SCSIDiskClass *sdc = (SCSIDiskClass *) object_get_class(OBJECT(s)); |
ea8a5d7f | 505 | |
6fa2c95f SH |
506 | /* No data transfer may already be in progress */ |
507 | assert(r->req.aiocb == NULL); | |
508 | ||
c7bae6a7 PB |
509 | /* The request is used as the AIO opaque value, so add a ref. */ |
510 | scsi_req_ref(&r->req); | |
efb9ee02 HR |
511 | if (r->req.cmd.mode != SCSI_XFER_TO_DEV) { |
512 | DPRINTF("Data transfer direction invalid\n"); | |
5fd2b563 | 513 | scsi_write_complete_noio(r, -EINVAL); |
42741212 | 514 | return; |
efb9ee02 HR |
515 | } |
516 | ||
5d0d2467 PB |
517 | if (!r->req.sg && !r->qiov.size) { |
518 | /* Called for the first time. Ask the driver to send us more data. */ | |
a0e66a69 | 519 | r->started = true; |
5fd2b563 | 520 | scsi_write_complete_noio(r, 0); |
5d0d2467 PB |
521 | return; |
522 | } | |
cd723b85 | 523 | if (!blk_is_available(req->dev->conf.blk)) { |
5fd2b563 | 524 | scsi_write_complete_noio(r, -ENOMEDIUM); |
5d0d2467 PB |
525 | return; |
526 | } | |
527 | ||
7f64f8e2 PB |
528 | if (r->req.cmd.buf[0] == VERIFY_10 || r->req.cmd.buf[0] == VERIFY_12 || |
529 | r->req.cmd.buf[0] == VERIFY_16) { | |
530 | if (r->req.sg) { | |
ef8489d4 | 531 | scsi_dma_complete_noio(r, 0); |
7f64f8e2 | 532 | } else { |
5fd2b563 | 533 | scsi_write_complete_noio(r, 0); |
7f64f8e2 PB |
534 | } |
535 | return; | |
536 | } | |
537 | ||
5d0d2467 | 538 | if (r->req.sg) { |
4be74634 | 539 | dma_acct_start(s->qdev.conf.blk, &r->acct, r->req.sg, BLOCK_ACCT_WRITE); |
5d0d2467 | 540 | r->req.resid -= r->req.sg->size; |
fcaafb10 PB |
541 | r->req.aiocb = dma_blk_io(blk_get_aio_context(s->qdev.conf.blk), |
542 | r->req.sg, r->sector << BDRV_SECTOR_BITS, | |
99868af3 | 543 | BDRV_SECTOR_SIZE, |
fcaafb10 PB |
544 | sdc->dma_writev, r, scsi_dma_complete, r, |
545 | DMA_DIRECTION_TO_DEVICE); | |
5d0d2467 | 546 | } else { |
4be74634 | 547 | block_acct_start(blk_get_stats(s->qdev.conf.blk), &r->acct, |
03c90063 | 548 | r->qiov.size, BLOCK_ACCT_WRITE); |
fcaafb10 PB |
549 | r->req.aiocb = sdc->dma_writev(r->sector << BDRV_SECTOR_BITS, &r->qiov, |
550 | scsi_write_complete, r, r); | |
ea8a5d7f | 551 | } |
a917d384 | 552 | } |
2e5d83bb | 553 | |
a917d384 | 554 | /* Return a pointer to the data buffer. */ |
5c6c0e51 | 555 | static uint8_t *scsi_get_buf(SCSIRequest *req) |
a917d384 | 556 | { |
5c6c0e51 | 557 | SCSIDiskReq *r = DO_UPCAST(SCSIDiskReq, req, req); |
2e5d83bb | 558 | |
3f4cb3d3 | 559 | return (uint8_t *)r->iov.iov_base; |
2e5d83bb PB |
560 | } |
561 | ||
0b06c059 GH |
562 | static int scsi_disk_emulate_inquiry(SCSIRequest *req, uint8_t *outbuf) |
563 | { | |
383b4d9b | 564 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, req->dev); |
0b06c059 | 565 | int buflen = 0; |
82579390 | 566 | int start; |
0b06c059 | 567 | |
0b06c059 GH |
568 | if (req->cmd.buf[1] & 0x1) { |
569 | /* Vital product data */ | |
570 | uint8_t page_code = req->cmd.buf[2]; | |
0b06c059 | 571 | |
e39be482 | 572 | outbuf[buflen++] = s->qdev.type & 0x1f; |
0b06c059 GH |
573 | outbuf[buflen++] = page_code ; // this page |
574 | outbuf[buflen++] = 0x00; | |
82579390 PB |
575 | outbuf[buflen++] = 0x00; |
576 | start = buflen; | |
0b06c059 GH |
577 | |
578 | switch (page_code) { | |
579 | case 0x00: /* Supported page codes, mandatory */ | |
39d98982 | 580 | { |
0b06c059 GH |
581 | DPRINTF("Inquiry EVPD[Supported pages] " |
582 | "buffer size %zd\n", req->cmd.xfer); | |
0b06c059 | 583 | outbuf[buflen++] = 0x00; // list of supported pages (this page) |
f01b5931 | 584 | if (s->serial) { |
3e1c0c9a | 585 | outbuf[buflen++] = 0x80; // unit serial number |
f01b5931 | 586 | } |
0b06c059 | 587 | outbuf[buflen++] = 0x83; // device identification |
f37bd73b | 588 | if (s->qdev.type == TYPE_DISK) { |
ea3bd56f CH |
589 | outbuf[buflen++] = 0xb0; // block limits |
590 | outbuf[buflen++] = 0xb2; // thin provisioning | |
39d98982 | 591 | } |
0b06c059 | 592 | break; |
39d98982 | 593 | } |
0b06c059 GH |
594 | case 0x80: /* Device serial number, optional */ |
595 | { | |
3e1c0c9a | 596 | int l; |
0b06c059 | 597 | |
3e1c0c9a HR |
598 | if (!s->serial) { |
599 | DPRINTF("Inquiry (EVPD[Serial number] not supported\n"); | |
600 | return -1; | |
601 | } | |
602 | ||
603 | l = strlen(s->serial); | |
48b62063 RW |
604 | if (l > 36) { |
605 | l = 36; | |
f01b5931 | 606 | } |
0b06c059 GH |
607 | |
608 | DPRINTF("Inquiry EVPD[Serial number] " | |
609 | "buffer size %zd\n", req->cmd.xfer); | |
a0fef654 | 610 | memcpy(outbuf+buflen, s->serial, l); |
0b06c059 GH |
611 | buflen += l; |
612 | break; | |
613 | } | |
614 | ||
615 | case 0x83: /* Device identification page, mandatory */ | |
616 | { | |
4be74634 | 617 | const char *str = s->serial ?: blk_name(s->qdev.conf.blk); |
fd930791 PB |
618 | int max_len = s->serial ? 20 : 255 - 8; |
619 | int id_len = strlen(str); | |
0b06c059 | 620 | |
f01b5931 | 621 | if (id_len > max_len) { |
0b06c059 | 622 | id_len = max_len; |
f01b5931 | 623 | } |
0b06c059 GH |
624 | DPRINTF("Inquiry EVPD[Device identification] " |
625 | "buffer size %zd\n", req->cmd.xfer); | |
626 | ||
0b06c059 GH |
627 | outbuf[buflen++] = 0x2; // ASCII |
628 | outbuf[buflen++] = 0; // not officially assigned | |
629 | outbuf[buflen++] = 0; // reserved | |
630 | outbuf[buflen++] = id_len; // length of data following | |
fd930791 | 631 | memcpy(outbuf+buflen, str, id_len); |
0b06c059 | 632 | buflen += id_len; |
27395add | 633 | |
2ecab408 | 634 | if (s->qdev.wwn) { |
27395add PB |
635 | outbuf[buflen++] = 0x1; // Binary |
636 | outbuf[buflen++] = 0x3; // NAA | |
637 | outbuf[buflen++] = 0; // reserved | |
638 | outbuf[buflen++] = 8; | |
2ecab408 | 639 | stq_be_p(&outbuf[buflen], s->qdev.wwn); |
27395add PB |
640 | buflen += 8; |
641 | } | |
64cc2284 | 642 | |
2ecab408 | 643 | if (s->qdev.port_wwn) { |
64cc2284 RD |
644 | outbuf[buflen++] = 0x61; // SAS / Binary |
645 | outbuf[buflen++] = 0x93; // PIV / Target port / NAA | |
646 | outbuf[buflen++] = 0; // reserved | |
647 | outbuf[buflen++] = 8; | |
2ecab408 | 648 | stq_be_p(&outbuf[buflen], s->qdev.port_wwn); |
64cc2284 RD |
649 | buflen += 8; |
650 | } | |
651 | ||
652 | if (s->port_index) { | |
653 | outbuf[buflen++] = 0x61; // SAS / Binary | |
654 | outbuf[buflen++] = 0x94; // PIV / Target port / relative target port | |
655 | outbuf[buflen++] = 0; // reserved | |
656 | outbuf[buflen++] = 4; | |
657 | stw_be_p(&outbuf[buflen + 2], s->port_index); | |
658 | buflen += 4; | |
659 | } | |
0b06c059 GH |
660 | break; |
661 | } | |
ea3bd56f | 662 | case 0xb0: /* block limits */ |
ee3659e3 | 663 | { |
ea3bd56f CH |
664 | unsigned int unmap_sectors = |
665 | s->qdev.conf.discard_granularity / s->qdev.blocksize; | |
8cfacf07 CH |
666 | unsigned int min_io_size = |
667 | s->qdev.conf.min_io_size / s->qdev.blocksize; | |
668 | unsigned int opt_io_size = | |
669 | s->qdev.conf.opt_io_size / s->qdev.blocksize; | |
8a1bd297 PB |
670 | unsigned int max_unmap_sectors = |
671 | s->max_unmap_size / s->qdev.blocksize; | |
f8e1f533 PB |
672 | unsigned int max_io_sectors = |
673 | s->max_io_size / s->qdev.blocksize; | |
ee3659e3 | 674 | |
f37bd73b | 675 | if (s->qdev.type == TYPE_ROM) { |
39d98982 HR |
676 | DPRINTF("Inquiry (EVPD[%02X] not supported for CDROM\n", |
677 | page_code); | |
678 | return -1; | |
679 | } | |
ee3659e3 | 680 | /* required VPD size with unmap support */ |
82579390 | 681 | buflen = 0x40; |
ee3659e3 CH |
682 | memset(outbuf + 4, 0, buflen - 4); |
683 | ||
84f94a9a PB |
684 | outbuf[4] = 0x1; /* wsnz */ |
685 | ||
ee3659e3 CH |
686 | /* optimal transfer length granularity */ |
687 | outbuf[6] = (min_io_size >> 8) & 0xff; | |
688 | outbuf[7] = min_io_size & 0xff; | |
689 | ||
f8e1f533 PB |
690 | /* maximum transfer length */ |
691 | outbuf[8] = (max_io_sectors >> 24) & 0xff; | |
692 | outbuf[9] = (max_io_sectors >> 16) & 0xff; | |
693 | outbuf[10] = (max_io_sectors >> 8) & 0xff; | |
694 | outbuf[11] = max_io_sectors & 0xff; | |
695 | ||
ee3659e3 CH |
696 | /* optimal transfer length */ |
697 | outbuf[12] = (opt_io_size >> 24) & 0xff; | |
698 | outbuf[13] = (opt_io_size >> 16) & 0xff; | |
699 | outbuf[14] = (opt_io_size >> 8) & 0xff; | |
700 | outbuf[15] = opt_io_size & 0xff; | |
ea3bd56f | 701 | |
8a1bd297 PB |
702 | /* max unmap LBA count, default is 1GB */ |
703 | outbuf[20] = (max_unmap_sectors >> 24) & 0xff; | |
704 | outbuf[21] = (max_unmap_sectors >> 16) & 0xff; | |
705 | outbuf[22] = (max_unmap_sectors >> 8) & 0xff; | |
706 | outbuf[23] = max_unmap_sectors & 0xff; | |
707 | ||
708 | /* max unmap descriptors, 255 fit in 4 kb with an 8-byte header. */ | |
709 | outbuf[24] = 0; | |
710 | outbuf[25] = 0; | |
711 | outbuf[26] = 0; | |
712 | outbuf[27] = 255; | |
713 | ||
ea3bd56f CH |
714 | /* optimal unmap granularity */ |
715 | outbuf[28] = (unmap_sectors >> 24) & 0xff; | |
716 | outbuf[29] = (unmap_sectors >> 16) & 0xff; | |
717 | outbuf[30] = (unmap_sectors >> 8) & 0xff; | |
718 | outbuf[31] = unmap_sectors & 0xff; | |
f8e1f533 PB |
719 | |
720 | /* max write same size */ | |
721 | outbuf[36] = 0; | |
722 | outbuf[37] = 0; | |
723 | outbuf[38] = 0; | |
724 | outbuf[39] = 0; | |
725 | ||
726 | outbuf[40] = (max_io_sectors >> 24) & 0xff; | |
727 | outbuf[41] = (max_io_sectors >> 16) & 0xff; | |
728 | outbuf[42] = (max_io_sectors >> 8) & 0xff; | |
729 | outbuf[43] = max_io_sectors & 0xff; | |
ea3bd56f CH |
730 | break; |
731 | } | |
732 | case 0xb2: /* thin provisioning */ | |
733 | { | |
82579390 | 734 | buflen = 8; |
ea3bd56f | 735 | outbuf[4] = 0; |
5222aaf2 | 736 | outbuf[5] = 0xe0; /* unmap & write_same 10/16 all supported */ |
f644a290 | 737 | outbuf[6] = s->qdev.conf.discard_granularity ? 2 : 1; |
ea3bd56f | 738 | outbuf[7] = 0; |
ee3659e3 CH |
739 | break; |
740 | } | |
0b06c059 | 741 | default: |
0b06c059 GH |
742 | return -1; |
743 | } | |
744 | /* done with EVPD */ | |
82579390 PB |
745 | assert(buflen - start <= 255); |
746 | outbuf[start - 1] = buflen - start; | |
0b06c059 GH |
747 | return buflen; |
748 | } | |
749 | ||
750 | /* Standard INQUIRY data */ | |
751 | if (req->cmd.buf[2] != 0) { | |
0b06c059 GH |
752 | return -1; |
753 | } | |
754 | ||
755 | /* PAGE CODE == 0 */ | |
0b06c059 | 756 | buflen = req->cmd.xfer; |
f01b5931 | 757 | if (buflen > SCSI_MAX_INQUIRY_LEN) { |
0b06c059 | 758 | buflen = SCSI_MAX_INQUIRY_LEN; |
f01b5931 | 759 | } |
0b06c059 | 760 | |
f37bd73b | 761 | outbuf[0] = s->qdev.type & 0x1f; |
bfe3d7ac | 762 | outbuf[1] = (s->features & (1 << SCSI_DISK_F_REMOVABLE)) ? 0x80 : 0; |
353815aa DF |
763 | |
764 | strpadcpy((char *) &outbuf[16], 16, s->product, ' '); | |
765 | strpadcpy((char *) &outbuf[8], 8, s->vendor, ' '); | |
766 | ||
314b1811 | 767 | memset(&outbuf[32], 0, 4); |
552fee93 | 768 | memcpy(&outbuf[32], s->version, MIN(4, strlen(s->version))); |
99aba0c4 CH |
769 | /* |
770 | * We claim conformance to SPC-3, which is required for guests | |
771 | * to ask for modern features like READ CAPACITY(16) or the | |
772 | * block characteristics VPD page by default. Not all of SPC-3 | |
773 | * is actually implemented, but we're good enough. | |
774 | */ | |
ee3659e3 | 775 | outbuf[2] = 5; |
1109c894 | 776 | outbuf[3] = 2 | 0x10; /* Format 2, HiSup */ |
ad3cea42 AT |
777 | |
778 | if (buflen > 36) { | |
779 | outbuf[4] = buflen - 5; /* Additional Length = (Len - 1) - 4 */ | |
780 | } else { | |
781 | /* If the allocation length of CDB is too small, | |
782 | the additional length is not adjusted */ | |
783 | outbuf[4] = 36 - 5; | |
784 | } | |
785 | ||
0b06c059 | 786 | /* Sync data transfer and TCQ. */ |
afd4030c | 787 | outbuf[7] = 0x10 | (req->bus->info->tcq ? 0x02 : 0); |
0b06c059 GH |
788 | return buflen; |
789 | } | |
790 | ||
430ee2f2 PB |
791 | static inline bool media_is_dvd(SCSIDiskState *s) |
792 | { | |
793 | uint64_t nb_sectors; | |
794 | if (s->qdev.type != TYPE_ROM) { | |
795 | return false; | |
796 | } | |
cd723b85 | 797 | if (!blk_is_available(s->qdev.conf.blk)) { |
7d99f4c1 MR |
798 | return false; |
799 | } | |
4be74634 | 800 | blk_get_geometry(s->qdev.conf.blk, &nb_sectors); |
430ee2f2 PB |
801 | return nb_sectors > CD_MAX_SECTORS; |
802 | } | |
803 | ||
ceb792ef PB |
804 | static inline bool media_is_cd(SCSIDiskState *s) |
805 | { | |
806 | uint64_t nb_sectors; | |
807 | if (s->qdev.type != TYPE_ROM) { | |
808 | return false; | |
809 | } | |
cd723b85 | 810 | if (!blk_is_available(s->qdev.conf.blk)) { |
7d99f4c1 MR |
811 | return false; |
812 | } | |
4be74634 | 813 | blk_get_geometry(s->qdev.conf.blk, &nb_sectors); |
ceb792ef PB |
814 | return nb_sectors <= CD_MAX_SECTORS; |
815 | } | |
816 | ||
1a4f0c3a PB |
817 | static int scsi_read_disc_information(SCSIDiskState *s, SCSIDiskReq *r, |
818 | uint8_t *outbuf) | |
819 | { | |
820 | uint8_t type = r->req.cmd.buf[1] & 7; | |
821 | ||
822 | if (s->qdev.type != TYPE_ROM) { | |
823 | return -1; | |
824 | } | |
825 | ||
826 | /* Types 1/2 are only defined for Blu-Ray. */ | |
827 | if (type != 0) { | |
828 | scsi_check_condition(r, SENSE_CODE(INVALID_FIELD)); | |
829 | return -1; | |
830 | } | |
831 | ||
832 | memset(outbuf, 0, 34); | |
833 | outbuf[1] = 32; | |
834 | outbuf[2] = 0xe; /* last session complete, disc finalized */ | |
835 | outbuf[3] = 1; /* first track on disc */ | |
836 | outbuf[4] = 1; /* # of sessions */ | |
837 | outbuf[5] = 1; /* first track of last session */ | |
838 | outbuf[6] = 1; /* last track of last session */ | |
839 | outbuf[7] = 0x20; /* unrestricted use */ | |
840 | outbuf[8] = 0x00; /* CD-ROM or DVD-ROM */ | |
841 | /* 9-10-11: most significant byte corresponding bytes 4-5-6 */ | |
842 | /* 12-23: not meaningful for CD-ROM or DVD-ROM */ | |
843 | /* 24-31: disc bar code */ | |
844 | /* 32: disc application code */ | |
845 | /* 33: number of OPC tables */ | |
846 | ||
847 | return 34; | |
848 | } | |
849 | ||
b6c251ab PB |
850 | static int scsi_read_dvd_structure(SCSIDiskState *s, SCSIDiskReq *r, |
851 | uint8_t *outbuf) | |
852 | { | |
ceb792ef PB |
853 | static const int rds_caps_size[5] = { |
854 | [0] = 2048 + 4, | |
855 | [1] = 4 + 4, | |
856 | [3] = 188 + 4, | |
857 | [4] = 2048 + 4, | |
858 | }; | |
859 | ||
860 | uint8_t media = r->req.cmd.buf[1]; | |
861 | uint8_t layer = r->req.cmd.buf[6]; | |
862 | uint8_t format = r->req.cmd.buf[7]; | |
863 | int size = -1; | |
864 | ||
865 | if (s->qdev.type != TYPE_ROM) { | |
866 | return -1; | |
867 | } | |
868 | if (media != 0) { | |
869 | scsi_check_condition(r, SENSE_CODE(INVALID_FIELD)); | |
870 | return -1; | |
871 | } | |
872 | ||
873 | if (format != 0xff) { | |
cd723b85 | 874 | if (!blk_is_available(s->qdev.conf.blk)) { |
ceb792ef PB |
875 | scsi_check_condition(r, SENSE_CODE(NO_MEDIUM)); |
876 | return -1; | |
877 | } | |
878 | if (media_is_cd(s)) { | |
879 | scsi_check_condition(r, SENSE_CODE(INCOMPATIBLE_FORMAT)); | |
880 | return -1; | |
881 | } | |
882 | if (format >= ARRAY_SIZE(rds_caps_size)) { | |
883 | return -1; | |
884 | } | |
885 | size = rds_caps_size[format]; | |
886 | memset(outbuf, 0, size); | |
887 | } | |
888 | ||
889 | switch (format) { | |
890 | case 0x00: { | |
891 | /* Physical format information */ | |
892 | uint64_t nb_sectors; | |
893 | if (layer != 0) { | |
894 | goto fail; | |
895 | } | |
4be74634 | 896 | blk_get_geometry(s->qdev.conf.blk, &nb_sectors); |
ceb792ef PB |
897 | |
898 | outbuf[4] = 1; /* DVD-ROM, part version 1 */ | |
899 | outbuf[5] = 0xf; /* 120mm disc, minimum rate unspecified */ | |
900 | outbuf[6] = 1; /* one layer, read-only (per MMC-2 spec) */ | |
901 | outbuf[7] = 0; /* default densities */ | |
902 | ||
903 | stl_be_p(&outbuf[12], (nb_sectors >> 2) - 1); /* end sector */ | |
904 | stl_be_p(&outbuf[16], (nb_sectors >> 2) - 1); /* l0 end sector */ | |
905 | break; | |
906 | } | |
907 | ||
908 | case 0x01: /* DVD copyright information, all zeros */ | |
909 | break; | |
910 | ||
911 | case 0x03: /* BCA information - invalid field for no BCA info */ | |
912 | return -1; | |
913 | ||
914 | case 0x04: /* DVD disc manufacturing information, all zeros */ | |
915 | break; | |
916 | ||
917 | case 0xff: { /* List capabilities */ | |
918 | int i; | |
919 | size = 4; | |
920 | for (i = 0; i < ARRAY_SIZE(rds_caps_size); i++) { | |
921 | if (!rds_caps_size[i]) { | |
922 | continue; | |
923 | } | |
924 | outbuf[size] = i; | |
925 | outbuf[size + 1] = 0x40; /* Not writable, readable */ | |
926 | stw_be_p(&outbuf[size + 2], rds_caps_size[i]); | |
927 | size += 4; | |
928 | } | |
929 | break; | |
930 | } | |
931 | ||
932 | default: | |
933 | return -1; | |
934 | } | |
935 | ||
936 | /* Size of buffer, not including 2 byte size field */ | |
937 | stw_be_p(outbuf, size - 2); | |
938 | return size; | |
939 | ||
940 | fail: | |
b6c251ab PB |
941 | return -1; |
942 | } | |
943 | ||
3c2f7c12 | 944 | static int scsi_event_status_media(SCSIDiskState *s, uint8_t *outbuf) |
b6c251ab | 945 | { |
3c2f7c12 PB |
946 | uint8_t event_code, media_status; |
947 | ||
948 | media_status = 0; | |
949 | if (s->tray_open) { | |
950 | media_status = MS_TRAY_OPEN; | |
4be74634 | 951 | } else if (blk_is_inserted(s->qdev.conf.blk)) { |
3c2f7c12 PB |
952 | media_status = MS_MEDIA_PRESENT; |
953 | } | |
954 | ||
955 | /* Event notification descriptor */ | |
956 | event_code = MEC_NO_CHANGE; | |
4480de19 PB |
957 | if (media_status != MS_TRAY_OPEN) { |
958 | if (s->media_event) { | |
959 | event_code = MEC_NEW_MEDIA; | |
960 | s->media_event = false; | |
961 | } else if (s->eject_request) { | |
962 | event_code = MEC_EJECT_REQUESTED; | |
963 | s->eject_request = false; | |
964 | } | |
3c2f7c12 PB |
965 | } |
966 | ||
967 | outbuf[0] = event_code; | |
968 | outbuf[1] = media_status; | |
969 | ||
970 | /* These fields are reserved, just clear them. */ | |
971 | outbuf[2] = 0; | |
972 | outbuf[3] = 0; | |
973 | return 4; | |
974 | } | |
975 | ||
976 | static int scsi_get_event_status_notification(SCSIDiskState *s, SCSIDiskReq *r, | |
977 | uint8_t *outbuf) | |
978 | { | |
979 | int size; | |
980 | uint8_t *buf = r->req.cmd.buf; | |
981 | uint8_t notification_class_request = buf[4]; | |
982 | if (s->qdev.type != TYPE_ROM) { | |
983 | return -1; | |
984 | } | |
985 | if ((buf[1] & 1) == 0) { | |
986 | /* asynchronous */ | |
987 | return -1; | |
988 | } | |
989 | ||
990 | size = 4; | |
991 | outbuf[0] = outbuf[1] = 0; | |
992 | outbuf[3] = 1 << GESN_MEDIA; /* supported events */ | |
993 | if (notification_class_request & (1 << GESN_MEDIA)) { | |
994 | outbuf[2] = GESN_MEDIA; | |
995 | size += scsi_event_status_media(s, &outbuf[size]); | |
996 | } else { | |
997 | outbuf[2] = 0x80; | |
998 | } | |
999 | stw_be_p(outbuf, size - 4); | |
1000 | return size; | |
b6c251ab PB |
1001 | } |
1002 | ||
430ee2f2 | 1003 | static int scsi_get_configuration(SCSIDiskState *s, uint8_t *outbuf) |
b6c251ab | 1004 | { |
430ee2f2 PB |
1005 | int current; |
1006 | ||
b6c251ab PB |
1007 | if (s->qdev.type != TYPE_ROM) { |
1008 | return -1; | |
1009 | } | |
7d99f4c1 MR |
1010 | |
1011 | if (media_is_dvd(s)) { | |
1012 | current = MMC_PROFILE_DVD_ROM; | |
1013 | } else if (media_is_cd(s)) { | |
1014 | current = MMC_PROFILE_CD_ROM; | |
1015 | } else { | |
1016 | current = MMC_PROFILE_NONE; | |
1017 | } | |
1018 | ||
430ee2f2 PB |
1019 | memset(outbuf, 0, 40); |
1020 | stl_be_p(&outbuf[0], 36); /* Bytes after the data length field */ | |
1021 | stw_be_p(&outbuf[6], current); | |
1022 | /* outbuf[8] - outbuf[19]: Feature 0 - Profile list */ | |
1023 | outbuf[10] = 0x03; /* persistent, current */ | |
1024 | outbuf[11] = 8; /* two profiles */ | |
1025 | stw_be_p(&outbuf[12], MMC_PROFILE_DVD_ROM); | |
1026 | outbuf[14] = (current == MMC_PROFILE_DVD_ROM); | |
1027 | stw_be_p(&outbuf[16], MMC_PROFILE_CD_ROM); | |
1028 | outbuf[18] = (current == MMC_PROFILE_CD_ROM); | |
1029 | /* outbuf[20] - outbuf[31]: Feature 1 - Core feature */ | |
1030 | stw_be_p(&outbuf[20], 1); | |
1031 | outbuf[22] = 0x08 | 0x03; /* version 2, persistent, current */ | |
1032 | outbuf[23] = 8; | |
1033 | stl_be_p(&outbuf[24], 1); /* SCSI */ | |
1034 | outbuf[28] = 1; /* DBE = 1, mandatory */ | |
1035 | /* outbuf[32] - outbuf[39]: Feature 3 - Removable media feature */ | |
1036 | stw_be_p(&outbuf[32], 3); | |
1037 | outbuf[34] = 0x08 | 0x03; /* version 2, persistent, current */ | |
1038 | outbuf[35] = 4; | |
1039 | outbuf[36] = 0x39; /* tray, load=1, eject=1, unlocked at powerup, lock=1 */ | |
1040 | /* TODO: Random readable, CD read, DVD read, drive serial number, | |
1041 | power management */ | |
1042 | return 40; | |
b6c251ab PB |
1043 | } |
1044 | ||
1045 | static int scsi_emulate_mechanism_status(SCSIDiskState *s, uint8_t *outbuf) | |
1046 | { | |
1047 | if (s->qdev.type != TYPE_ROM) { | |
1048 | return -1; | |
1049 | } | |
1050 | memset(outbuf, 0, 8); | |
1051 | outbuf[5] = 1; /* CD-ROM */ | |
1052 | return 8; | |
1053 | } | |
1054 | ||
cfc606da | 1055 | static int mode_sense_page(SCSIDiskState *s, int page, uint8_t **p_outbuf, |
282ab04e | 1056 | int page_control) |
ebddfcbe | 1057 | { |
a8f4bbe2 PB |
1058 | static const int mode_sense_valid[0x3f] = { |
1059 | [MODE_PAGE_HD_GEOMETRY] = (1 << TYPE_DISK), | |
1060 | [MODE_PAGE_FLEXIBLE_DISK_GEOMETRY] = (1 << TYPE_DISK), | |
1061 | [MODE_PAGE_CACHING] = (1 << TYPE_DISK) | (1 << TYPE_ROM), | |
a07c7dcd PB |
1062 | [MODE_PAGE_R_W_ERROR] = (1 << TYPE_DISK) | (1 << TYPE_ROM), |
1063 | [MODE_PAGE_AUDIO_CTL] = (1 << TYPE_ROM), | |
a8f4bbe2 PB |
1064 | [MODE_PAGE_CAPABILITIES] = (1 << TYPE_ROM), |
1065 | }; | |
ef405611 PB |
1066 | |
1067 | uint8_t *p = *p_outbuf + 2; | |
1068 | int length; | |
ebddfcbe | 1069 | |
a8f4bbe2 PB |
1070 | if ((mode_sense_valid[page] & (1 << s->qdev.type)) == 0) { |
1071 | return -1; | |
1072 | } | |
1073 | ||
282ab04e BK |
1074 | /* |
1075 | * If Changeable Values are requested, a mask denoting those mode parameters | |
1076 | * that are changeable shall be returned. As we currently don't support | |
1077 | * parameter changes via MODE_SELECT all bits are returned set to zero. | |
1078 | * The buffer was already menset to zero by the caller of this function. | |
ef405611 PB |
1079 | * |
1080 | * The offsets here are off by two compared to the descriptions in the | |
1081 | * SCSI specs, because those include a 2-byte header. This is unfortunate, | |
1082 | * but it is done so that offsets are consistent within our implementation | |
1083 | * of MODE SENSE and MODE SELECT. MODE SELECT has to deal with both | |
1084 | * 2-byte and 4-byte headers. | |
282ab04e | 1085 | */ |
ebddfcbe | 1086 | switch (page) { |
67cc61e4 | 1087 | case MODE_PAGE_HD_GEOMETRY: |
ef405611 | 1088 | length = 0x16; |
282ab04e | 1089 | if (page_control == 1) { /* Changeable Values */ |
cfc606da | 1090 | break; |
282ab04e | 1091 | } |
ebddfcbe | 1092 | /* if a geometry hint is available, use it */ |
ef405611 PB |
1093 | p[0] = (s->qdev.conf.cyls >> 16) & 0xff; |
1094 | p[1] = (s->qdev.conf.cyls >> 8) & 0xff; | |
1095 | p[2] = s->qdev.conf.cyls & 0xff; | |
1096 | p[3] = s->qdev.conf.heads & 0xff; | |
ebddfcbe | 1097 | /* Write precomp start cylinder, disabled */ |
ef405611 PB |
1098 | p[4] = (s->qdev.conf.cyls >> 16) & 0xff; |
1099 | p[5] = (s->qdev.conf.cyls >> 8) & 0xff; | |
1100 | p[6] = s->qdev.conf.cyls & 0xff; | |
ebddfcbe | 1101 | /* Reduced current start cylinder, disabled */ |
ef405611 PB |
1102 | p[7] = (s->qdev.conf.cyls >> 16) & 0xff; |
1103 | p[8] = (s->qdev.conf.cyls >> 8) & 0xff; | |
1104 | p[9] = s->qdev.conf.cyls & 0xff; | |
ebddfcbe | 1105 | /* Device step rate [ns], 200ns */ |
ef405611 PB |
1106 | p[10] = 0; |
1107 | p[11] = 200; | |
ebddfcbe | 1108 | /* Landing zone cylinder */ |
ef405611 PB |
1109 | p[12] = 0xff; |
1110 | p[13] = 0xff; | |
ebddfcbe | 1111 | p[14] = 0xff; |
ebddfcbe | 1112 | /* Medium rotation rate [rpm], 5400 rpm */ |
ef405611 PB |
1113 | p[18] = (5400 >> 8) & 0xff; |
1114 | p[19] = 5400 & 0xff; | |
cfc606da | 1115 | break; |
ebddfcbe | 1116 | |
67cc61e4 | 1117 | case MODE_PAGE_FLEXIBLE_DISK_GEOMETRY: |
ef405611 | 1118 | length = 0x1e; |
282ab04e | 1119 | if (page_control == 1) { /* Changeable Values */ |
cfc606da | 1120 | break; |
282ab04e | 1121 | } |
ebddfcbe | 1122 | /* Transfer rate [kbit/s], 5Mbit/s */ |
ef405611 PB |
1123 | p[0] = 5000 >> 8; |
1124 | p[1] = 5000 & 0xff; | |
ebddfcbe | 1125 | /* if a geometry hint is available, use it */ |
ef405611 PB |
1126 | p[2] = s->qdev.conf.heads & 0xff; |
1127 | p[3] = s->qdev.conf.secs & 0xff; | |
1128 | p[4] = s->qdev.blocksize >> 8; | |
1129 | p[6] = (s->qdev.conf.cyls >> 8) & 0xff; | |
1130 | p[7] = s->qdev.conf.cyls & 0xff; | |
1131 | /* Write precomp start cylinder, disabled */ | |
d252df48 MA |
1132 | p[8] = (s->qdev.conf.cyls >> 8) & 0xff; |
1133 | p[9] = s->qdev.conf.cyls & 0xff; | |
ef405611 | 1134 | /* Reduced current start cylinder, disabled */ |
d252df48 MA |
1135 | p[10] = (s->qdev.conf.cyls >> 8) & 0xff; |
1136 | p[11] = s->qdev.conf.cyls & 0xff; | |
ebddfcbe | 1137 | /* Device step rate [100us], 100us */ |
ef405611 PB |
1138 | p[12] = 0; |
1139 | p[13] = 1; | |
ebddfcbe | 1140 | /* Device step pulse width [us], 1us */ |
ef405611 | 1141 | p[14] = 1; |
ebddfcbe | 1142 | /* Device head settle delay [100us], 100us */ |
ef405611 PB |
1143 | p[15] = 0; |
1144 | p[16] = 1; | |
ebddfcbe | 1145 | /* Motor on delay [0.1s], 0.1s */ |
ef405611 | 1146 | p[17] = 1; |
ebddfcbe | 1147 | /* Motor off delay [0.1s], 0.1s */ |
ef405611 | 1148 | p[18] = 1; |
ebddfcbe | 1149 | /* Medium rotation rate [rpm], 5400 rpm */ |
ef405611 PB |
1150 | p[26] = (5400 >> 8) & 0xff; |
1151 | p[27] = 5400 & 0xff; | |
cfc606da | 1152 | break; |
ebddfcbe | 1153 | |
67cc61e4 | 1154 | case MODE_PAGE_CACHING: |
ef405611 | 1155 | length = 0x12; |
96c91bbf | 1156 | if (page_control == 1 || /* Changeable Values */ |
4be74634 | 1157 | blk_enable_write_cache(s->qdev.conf.blk)) { |
ef405611 | 1158 | p[0] = 4; /* WCE */ |
ebddfcbe | 1159 | } |
cfc606da | 1160 | break; |
ebddfcbe | 1161 | |
a07c7dcd | 1162 | case MODE_PAGE_R_W_ERROR: |
ef405611 | 1163 | length = 10; |
4f588b15 PB |
1164 | if (page_control == 1) { /* Changeable Values */ |
1165 | break; | |
1166 | } | |
ef405611 | 1167 | p[0] = 0x80; /* Automatic Write Reallocation Enabled */ |
a07c7dcd | 1168 | if (s->qdev.type == TYPE_ROM) { |
ef405611 | 1169 | p[1] = 0x20; /* Read Retry Count */ |
a07c7dcd PB |
1170 | } |
1171 | break; | |
1172 | ||
1173 | case MODE_PAGE_AUDIO_CTL: | |
ef405611 | 1174 | length = 14; |
a07c7dcd PB |
1175 | break; |
1176 | ||
67cc61e4 | 1177 | case MODE_PAGE_CAPABILITIES: |
ef405611 | 1178 | length = 0x14; |
282ab04e | 1179 | if (page_control == 1) { /* Changeable Values */ |
cfc606da | 1180 | break; |
282ab04e | 1181 | } |
a07c7dcd | 1182 | |
ef405611 PB |
1183 | p[0] = 0x3b; /* CD-R & CD-RW read */ |
1184 | p[1] = 0; /* Writing not supported */ | |
1185 | p[2] = 0x7f; /* Audio, composite, digital out, | |
ebddfcbe | 1186 | mode 2 form 1&2, multi session */ |
ef405611 | 1187 | p[3] = 0xff; /* CD DA, DA accurate, RW supported, |
ebddfcbe GH |
1188 | RW corrected, C2 errors, ISRC, |
1189 | UPC, Bar code */ | |
ef405611 | 1190 | p[4] = 0x2d | (s->tray_locked ? 2 : 0); |
ebddfcbe | 1191 | /* Locking supported, jumper present, eject, tray */ |
ef405611 | 1192 | p[5] = 0; /* no volume & mute control, no |
ebddfcbe | 1193 | changer */ |
ef405611 PB |
1194 | p[6] = (50 * 176) >> 8; /* 50x read speed */ |
1195 | p[7] = (50 * 176) & 0xff; | |
1196 | p[8] = 2 >> 8; /* Two volume levels */ | |
1197 | p[9] = 2 & 0xff; | |
1198 | p[10] = 2048 >> 8; /* 2M buffer */ | |
1199 | p[11] = 2048 & 0xff; | |
1200 | p[12] = (16 * 176) >> 8; /* 16x read speed current */ | |
1201 | p[13] = (16 * 176) & 0xff; | |
1202 | p[16] = (16 * 176) >> 8; /* 16x write speed */ | |
1203 | p[17] = (16 * 176) & 0xff; | |
1204 | p[18] = (16 * 176) >> 8; /* 16x write speed current */ | |
ebddfcbe | 1205 | p[19] = (16 * 176) & 0xff; |
cfc606da | 1206 | break; |
ebddfcbe GH |
1207 | |
1208 | default: | |
cfc606da | 1209 | return -1; |
ebddfcbe | 1210 | } |
cfc606da | 1211 | |
ef405611 PB |
1212 | assert(length < 256); |
1213 | (*p_outbuf)[0] = page; | |
1214 | (*p_outbuf)[1] = length; | |
1215 | *p_outbuf += length + 2; | |
1216 | return length + 2; | |
ebddfcbe GH |
1217 | } |
1218 | ||
cfc606da | 1219 | static int scsi_disk_emulate_mode_sense(SCSIDiskReq *r, uint8_t *outbuf) |
ebddfcbe | 1220 | { |
cfc606da | 1221 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); |
ebddfcbe | 1222 | uint64_t nb_sectors; |
e590ecbe PB |
1223 | bool dbd; |
1224 | int page, buflen, ret, page_control; | |
ebddfcbe | 1225 | uint8_t *p; |
ce512ee1 | 1226 | uint8_t dev_specific_param; |
ebddfcbe | 1227 | |
e590ecbe | 1228 | dbd = (r->req.cmd.buf[1] & 0x8) != 0; |
cfc606da PB |
1229 | page = r->req.cmd.buf[2] & 0x3f; |
1230 | page_control = (r->req.cmd.buf[2] & 0xc0) >> 6; | |
aa2b1e89 | 1231 | DPRINTF("Mode Sense(%d) (page %d, xfer %zd, page_control %d)\n", |
cfc606da PB |
1232 | (r->req.cmd.buf[0] == MODE_SENSE) ? 6 : 10, page, r->req.cmd.xfer, page_control); |
1233 | memset(outbuf, 0, r->req.cmd.xfer); | |
ebddfcbe GH |
1234 | p = outbuf; |
1235 | ||
e590ecbe | 1236 | if (s->qdev.type == TYPE_DISK) { |
da8365db | 1237 | dev_specific_param = s->features & (1 << SCSI_DISK_F_DPOFUA) ? 0x10 : 0; |
4be74634 | 1238 | if (blk_is_read_only(s->qdev.conf.blk)) { |
e590ecbe PB |
1239 | dev_specific_param |= 0x80; /* Readonly. */ |
1240 | } | |
ce512ee1 | 1241 | } else { |
e590ecbe PB |
1242 | /* MMC prescribes that CD/DVD drives have no block descriptors, |
1243 | * and defines no device-specific parameter. */ | |
6a2de0f2 | 1244 | dev_specific_param = 0x00; |
e590ecbe | 1245 | dbd = true; |
ce512ee1 BK |
1246 | } |
1247 | ||
cfc606da | 1248 | if (r->req.cmd.buf[0] == MODE_SENSE) { |
ce512ee1 BK |
1249 | p[1] = 0; /* Default media type. */ |
1250 | p[2] = dev_specific_param; | |
1251 | p[3] = 0; /* Block descriptor length. */ | |
1252 | p += 4; | |
1253 | } else { /* MODE_SENSE_10 */ | |
1254 | p[2] = 0; /* Default media type. */ | |
1255 | p[3] = dev_specific_param; | |
1256 | p[6] = p[7] = 0; /* Block descriptor length. */ | |
1257 | p += 8; | |
ebddfcbe | 1258 | } |
ebddfcbe | 1259 | |
4be74634 | 1260 | blk_get_geometry(s->qdev.conf.blk, &nb_sectors); |
e590ecbe | 1261 | if (!dbd && nb_sectors) { |
cfc606da | 1262 | if (r->req.cmd.buf[0] == MODE_SENSE) { |
ce512ee1 BK |
1263 | outbuf[3] = 8; /* Block descriptor length */ |
1264 | } else { /* MODE_SENSE_10 */ | |
1265 | outbuf[7] = 8; /* Block descriptor length */ | |
1266 | } | |
69377307 | 1267 | nb_sectors /= (s->qdev.blocksize / 512); |
f01b5931 | 1268 | if (nb_sectors > 0xffffff) { |
2488b740 | 1269 | nb_sectors = 0; |
f01b5931 | 1270 | } |
ebddfcbe GH |
1271 | p[0] = 0; /* media density code */ |
1272 | p[1] = (nb_sectors >> 16) & 0xff; | |
1273 | p[2] = (nb_sectors >> 8) & 0xff; | |
1274 | p[3] = nb_sectors & 0xff; | |
1275 | p[4] = 0; /* reserved */ | |
1276 | p[5] = 0; /* bytes 5-7 are the sector size in bytes */ | |
69377307 | 1277 | p[6] = s->qdev.blocksize >> 8; |
ebddfcbe GH |
1278 | p[7] = 0; |
1279 | p += 8; | |
1280 | } | |
1281 | ||
cfc606da PB |
1282 | if (page_control == 3) { |
1283 | /* Saved Values */ | |
1284 | scsi_check_condition(r, SENSE_CODE(SAVING_PARAMS_NOT_SUPPORTED)); | |
1285 | return -1; | |
282ab04e BK |
1286 | } |
1287 | ||
cfc606da PB |
1288 | if (page == 0x3f) { |
1289 | for (page = 0; page <= 0x3e; page++) { | |
1290 | mode_sense_page(s, page, &p, page_control); | |
1291 | } | |
1292 | } else { | |
1293 | ret = mode_sense_page(s, page, &p, page_control); | |
1294 | if (ret == -1) { | |
1295 | return -1; | |
1296 | } | |
ebddfcbe GH |
1297 | } |
1298 | ||
1299 | buflen = p - outbuf; | |
ce512ee1 BK |
1300 | /* |
1301 | * The mode data length field specifies the length in bytes of the | |
1302 | * following data that is available to be transferred. The mode data | |
1303 | * length does not include itself. | |
1304 | */ | |
cfc606da | 1305 | if (r->req.cmd.buf[0] == MODE_SENSE) { |
ce512ee1 BK |
1306 | outbuf[0] = buflen - 1; |
1307 | } else { /* MODE_SENSE_10 */ | |
1308 | outbuf[0] = ((buflen - 2) >> 8) & 0xff; | |
1309 | outbuf[1] = (buflen - 2) & 0xff; | |
1310 | } | |
ebddfcbe GH |
1311 | return buflen; |
1312 | } | |
1313 | ||
02880f43 GH |
1314 | static int scsi_disk_emulate_read_toc(SCSIRequest *req, uint8_t *outbuf) |
1315 | { | |
1316 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, req->dev); | |
02880f43 GH |
1317 | int start_track, format, msf, toclen; |
1318 | uint64_t nb_sectors; | |
1319 | ||
1320 | msf = req->cmd.buf[1] & 2; | |
1321 | format = req->cmd.buf[2] & 0xf; | |
1322 | start_track = req->cmd.buf[6]; | |
4be74634 | 1323 | blk_get_geometry(s->qdev.conf.blk, &nb_sectors); |
02880f43 | 1324 | DPRINTF("Read TOC (track %d format %d msf %d)\n", start_track, format, msf >> 1); |
69377307 | 1325 | nb_sectors /= s->qdev.blocksize / 512; |
02880f43 GH |
1326 | switch (format) { |
1327 | case 0: | |
1328 | toclen = cdrom_read_toc(nb_sectors, outbuf, msf, start_track); | |
1329 | break; | |
1330 | case 1: | |
1331 | /* multi session : only a single session defined */ | |
1332 | toclen = 12; | |
1333 | memset(outbuf, 0, 12); | |
1334 | outbuf[1] = 0x0a; | |
1335 | outbuf[2] = 0x01; | |
1336 | outbuf[3] = 0x01; | |
1337 | break; | |
1338 | case 2: | |
1339 | toclen = cdrom_read_toc_raw(nb_sectors, outbuf, msf, start_track); | |
1340 | break; | |
1341 | default: | |
1342 | return -1; | |
1343 | } | |
02880f43 GH |
1344 | return toclen; |
1345 | } | |
1346 | ||
68bb01f3 | 1347 | static int scsi_disk_emulate_start_stop(SCSIDiskReq *r) |
bfd52647 MA |
1348 | { |
1349 | SCSIRequest *req = &r->req; | |
1350 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, req->dev); | |
1351 | bool start = req->cmd.buf[4] & 1; | |
1352 | bool loej = req->cmd.buf[4] & 2; /* load on start, eject on !start */ | |
ae5708b3 RS |
1353 | int pwrcnd = req->cmd.buf[4] & 0xf0; |
1354 | ||
1355 | if (pwrcnd) { | |
1356 | /* eject/load only happens for power condition == 0 */ | |
1357 | return 0; | |
1358 | } | |
bfd52647 | 1359 | |
b456a71c | 1360 | if ((s->features & (1 << SCSI_DISK_F_REMOVABLE)) && loej) { |
68bb01f3 MA |
1361 | if (!start && !s->tray_open && s->tray_locked) { |
1362 | scsi_check_condition(r, | |
4be74634 | 1363 | blk_is_inserted(s->qdev.conf.blk) |
68bb01f3 MA |
1364 | ? SENSE_CODE(ILLEGAL_REQ_REMOVAL_PREVENTED) |
1365 | : SENSE_CODE(NOT_READY_REMOVAL_PREVENTED)); | |
1366 | return -1; | |
fdec4404 | 1367 | } |
d88b1819 LC |
1368 | |
1369 | if (s->tray_open != !start) { | |
4be74634 | 1370 | blk_eject(s->qdev.conf.blk, !start); |
d88b1819 LC |
1371 | s->tray_open = !start; |
1372 | } | |
bfd52647 | 1373 | } |
68bb01f3 | 1374 | return 0; |
bfd52647 MA |
1375 | } |
1376 | ||
314a3299 PB |
1377 | static void scsi_disk_emulate_read_data(SCSIRequest *req) |
1378 | { | |
1379 | SCSIDiskReq *r = DO_UPCAST(SCSIDiskReq, req, req); | |
1380 | int buflen = r->iov.iov_len; | |
1381 | ||
1382 | if (buflen) { | |
79fb50bb | 1383 | DPRINTF("Read buf_len=%d\n", buflen); |
314a3299 PB |
1384 | r->iov.iov_len = 0; |
1385 | r->started = true; | |
1386 | scsi_req_data(&r->req, buflen); | |
1387 | return; | |
1388 | } | |
1389 | ||
1390 | /* This also clears the sense buffer for REQUEST SENSE. */ | |
1391 | scsi_req_complete(&r->req, GOOD); | |
1392 | } | |
1393 | ||
380feaff PB |
1394 | static int scsi_disk_check_mode_select(SCSIDiskState *s, int page, |
1395 | uint8_t *inbuf, int inlen) | |
1396 | { | |
1397 | uint8_t mode_current[SCSI_MAX_MODE_LEN]; | |
1398 | uint8_t mode_changeable[SCSI_MAX_MODE_LEN]; | |
1399 | uint8_t *p; | |
1400 | int len, expected_len, changeable_len, i; | |
1401 | ||
1402 | /* The input buffer does not include the page header, so it is | |
1403 | * off by 2 bytes. | |
1404 | */ | |
1405 | expected_len = inlen + 2; | |
1406 | if (expected_len > SCSI_MAX_MODE_LEN) { | |
1407 | return -1; | |
1408 | } | |
1409 | ||
1410 | p = mode_current; | |
1411 | memset(mode_current, 0, inlen + 2); | |
1412 | len = mode_sense_page(s, page, &p, 0); | |
1413 | if (len < 0 || len != expected_len) { | |
1414 | return -1; | |
1415 | } | |
1416 | ||
1417 | p = mode_changeable; | |
1418 | memset(mode_changeable, 0, inlen + 2); | |
1419 | changeable_len = mode_sense_page(s, page, &p, 1); | |
1420 | assert(changeable_len == len); | |
1421 | ||
1422 | /* Check that unchangeable bits are the same as what MODE SENSE | |
1423 | * would return. | |
1424 | */ | |
1425 | for (i = 2; i < len; i++) { | |
1426 | if (((mode_current[i] ^ inbuf[i - 2]) & ~mode_changeable[i]) != 0) { | |
1427 | return -1; | |
1428 | } | |
1429 | } | |
1430 | return 0; | |
1431 | } | |
1432 | ||
1433 | static void scsi_disk_apply_mode_select(SCSIDiskState *s, int page, uint8_t *p) | |
1434 | { | |
96c91bbf PB |
1435 | switch (page) { |
1436 | case MODE_PAGE_CACHING: | |
4be74634 | 1437 | blk_set_enable_write_cache(s->qdev.conf.blk, (p[0] & 4) != 0); |
96c91bbf PB |
1438 | break; |
1439 | ||
1440 | default: | |
1441 | break; | |
1442 | } | |
380feaff PB |
1443 | } |
1444 | ||
1445 | static int mode_select_pages(SCSIDiskReq *r, uint8_t *p, int len, bool change) | |
1446 | { | |
1447 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); | |
1448 | ||
1449 | while (len > 0) { | |
1450 | int page, subpage, page_len; | |
1451 | ||
1452 | /* Parse both possible formats for the mode page headers. */ | |
1453 | page = p[0] & 0x3f; | |
1454 | if (p[0] & 0x40) { | |
1455 | if (len < 4) { | |
1456 | goto invalid_param_len; | |
1457 | } | |
1458 | subpage = p[1]; | |
1459 | page_len = lduw_be_p(&p[2]); | |
1460 | p += 4; | |
1461 | len -= 4; | |
1462 | } else { | |
1463 | if (len < 2) { | |
1464 | goto invalid_param_len; | |
1465 | } | |
1466 | subpage = 0; | |
1467 | page_len = p[1]; | |
1468 | p += 2; | |
1469 | len -= 2; | |
1470 | } | |
1471 | ||
1472 | if (subpage) { | |
1473 | goto invalid_param; | |
1474 | } | |
1475 | if (page_len > len) { | |
1476 | goto invalid_param_len; | |
1477 | } | |
1478 | ||
1479 | if (!change) { | |
1480 | if (scsi_disk_check_mode_select(s, page, p, page_len) < 0) { | |
1481 | goto invalid_param; | |
1482 | } | |
1483 | } else { | |
1484 | scsi_disk_apply_mode_select(s, page, p); | |
1485 | } | |
1486 | ||
1487 | p += page_len; | |
1488 | len -= page_len; | |
1489 | } | |
1490 | return 0; | |
1491 | ||
1492 | invalid_param: | |
1493 | scsi_check_condition(r, SENSE_CODE(INVALID_PARAM)); | |
1494 | return -1; | |
1495 | ||
1496 | invalid_param_len: | |
1497 | scsi_check_condition(r, SENSE_CODE(INVALID_PARAM_LEN)); | |
1498 | return -1; | |
1499 | } | |
1500 | ||
1501 | static void scsi_disk_emulate_mode_select(SCSIDiskReq *r, uint8_t *inbuf) | |
1502 | { | |
accfeb2d | 1503 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); |
380feaff PB |
1504 | uint8_t *p = inbuf; |
1505 | int cmd = r->req.cmd.buf[0]; | |
1506 | int len = r->req.cmd.xfer; | |
1507 | int hdr_len = (cmd == MODE_SELECT ? 4 : 8); | |
1508 | int bd_len; | |
1509 | int pass; | |
1510 | ||
1511 | /* We only support PF=1, SP=0. */ | |
1512 | if ((r->req.cmd.buf[1] & 0x11) != 0x10) { | |
1513 | goto invalid_field; | |
1514 | } | |
1515 | ||
1516 | if (len < hdr_len) { | |
1517 | goto invalid_param_len; | |
1518 | } | |
1519 | ||
1520 | bd_len = (cmd == MODE_SELECT ? p[3] : lduw_be_p(&p[6])); | |
1521 | len -= hdr_len; | |
1522 | p += hdr_len; | |
1523 | if (len < bd_len) { | |
1524 | goto invalid_param_len; | |
1525 | } | |
1526 | if (bd_len != 0 && bd_len != 8) { | |
1527 | goto invalid_param; | |
1528 | } | |
1529 | ||
1530 | len -= bd_len; | |
1531 | p += bd_len; | |
1532 | ||
1533 | /* Ensure no change is made if there is an error! */ | |
1534 | for (pass = 0; pass < 2; pass++) { | |
1535 | if (mode_select_pages(r, p, len, pass == 1) < 0) { | |
1536 | assert(pass == 0); | |
1537 | return; | |
1538 | } | |
1539 | } | |
4be74634 | 1540 | if (!blk_enable_write_cache(s->qdev.conf.blk)) { |
accfeb2d PB |
1541 | /* The request is used as the AIO opaque value, so add a ref. */ |
1542 | scsi_req_ref(&r->req); | |
4be74634 | 1543 | block_acct_start(blk_get_stats(s->qdev.conf.blk), &r->acct, 0, |
5366d0c8 | 1544 | BLOCK_ACCT_FLUSH); |
4be74634 | 1545 | r->req.aiocb = blk_aio_flush(s->qdev.conf.blk, scsi_aio_complete, r); |
accfeb2d PB |
1546 | return; |
1547 | } | |
1548 | ||
380feaff PB |
1549 | scsi_req_complete(&r->req, GOOD); |
1550 | return; | |
1551 | ||
1552 | invalid_param: | |
1553 | scsi_check_condition(r, SENSE_CODE(INVALID_PARAM)); | |
1554 | return; | |
1555 | ||
1556 | invalid_param_len: | |
1557 | scsi_check_condition(r, SENSE_CODE(INVALID_PARAM_LEN)); | |
1558 | return; | |
1559 | ||
1560 | invalid_field: | |
1561 | scsi_check_condition(r, SENSE_CODE(INVALID_FIELD)); | |
380feaff PB |
1562 | } |
1563 | ||
444bc908 PB |
1564 | static inline bool check_lba_range(SCSIDiskState *s, |
1565 | uint64_t sector_num, uint32_t nb_sectors) | |
1566 | { | |
1567 | /* | |
1568 | * The first line tests that no overflow happens when computing the last | |
1569 | * sector. The second line tests that the last accessed sector is in | |
1570 | * range. | |
12ca76fc PB |
1571 | * |
1572 | * Careful, the computations should not underflow for nb_sectors == 0, | |
1573 | * and a 0-block read to the first LBA beyond the end of device is | |
1574 | * valid. | |
444bc908 PB |
1575 | */ |
1576 | return (sector_num <= sector_num + nb_sectors && | |
12ca76fc | 1577 | sector_num + nb_sectors <= s->qdev.max_lba + 1); |
444bc908 PB |
1578 | } |
1579 | ||
5222aaf2 PB |
1580 | typedef struct UnmapCBData { |
1581 | SCSIDiskReq *r; | |
1582 | uint8_t *inbuf; | |
1583 | int count; | |
1584 | } UnmapCBData; | |
1585 | ||
5fd2b563 PB |
1586 | static void scsi_unmap_complete(void *opaque, int ret); |
1587 | ||
1588 | static void scsi_unmap_complete_noio(UnmapCBData *data, int ret) | |
5222aaf2 | 1589 | { |
5222aaf2 PB |
1590 | SCSIDiskReq *r = data->r; |
1591 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); | |
1592 | uint64_t sector_num; | |
5bb0b62e | 1593 | uint32_t nb_sectors; |
5222aaf2 | 1594 | |
5fd2b563 | 1595 | assert(r->req.aiocb == NULL); |
5b956f41 | 1596 | if (scsi_disk_req_check_error(r, ret, false)) { |
d0242ead PB |
1597 | goto done; |
1598 | } | |
1599 | ||
d0242ead | 1600 | if (data->count > 0) { |
5222aaf2 PB |
1601 | sector_num = ldq_be_p(&data->inbuf[0]); |
1602 | nb_sectors = ldl_be_p(&data->inbuf[8]) & 0xffffffffULL; | |
444bc908 | 1603 | if (!check_lba_range(s, sector_num, nb_sectors)) { |
5222aaf2 PB |
1604 | scsi_check_condition(r, SENSE_CODE(LBA_OUT_OF_RANGE)); |
1605 | goto done; | |
1606 | } | |
1607 | ||
1c6c4bb7 EB |
1608 | r->req.aiocb = blk_aio_pdiscard(s->qdev.conf.blk, |
1609 | sector_num * s->qdev.blocksize, | |
1610 | nb_sectors * s->qdev.blocksize, | |
1611 | scsi_unmap_complete, data); | |
5222aaf2 PB |
1612 | data->count--; |
1613 | data->inbuf += 16; | |
1614 | return; | |
1615 | } | |
1616 | ||
d0242ead PB |
1617 | scsi_req_complete(&r->req, GOOD); |
1618 | ||
5222aaf2 | 1619 | done: |
3df9caf8 | 1620 | scsi_req_unref(&r->req); |
5222aaf2 PB |
1621 | g_free(data); |
1622 | } | |
1623 | ||
5fd2b563 PB |
1624 | static void scsi_unmap_complete(void *opaque, int ret) |
1625 | { | |
1626 | UnmapCBData *data = opaque; | |
1627 | SCSIDiskReq *r = data->r; | |
1628 | ||
1629 | assert(r->req.aiocb != NULL); | |
1630 | r->req.aiocb = NULL; | |
1631 | ||
1632 | scsi_unmap_complete_noio(data, ret); | |
1633 | } | |
1634 | ||
5222aaf2 PB |
1635 | static void scsi_disk_emulate_unmap(SCSIDiskReq *r, uint8_t *inbuf) |
1636 | { | |
c5fd1fb0 | 1637 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); |
5222aaf2 PB |
1638 | uint8_t *p = inbuf; |
1639 | int len = r->req.cmd.xfer; | |
1640 | UnmapCBData *data; | |
1641 | ||
823bd739 PB |
1642 | /* Reject ANCHOR=1. */ |
1643 | if (r->req.cmd.buf[1] & 0x1) { | |
1644 | goto invalid_field; | |
1645 | } | |
1646 | ||
5222aaf2 PB |
1647 | if (len < 8) { |
1648 | goto invalid_param_len; | |
1649 | } | |
1650 | if (len < lduw_be_p(&p[0]) + 2) { | |
1651 | goto invalid_param_len; | |
1652 | } | |
1653 | if (len < lduw_be_p(&p[2]) + 8) { | |
1654 | goto invalid_param_len; | |
1655 | } | |
1656 | if (lduw_be_p(&p[2]) & 15) { | |
1657 | goto invalid_param_len; | |
1658 | } | |
1659 | ||
4be74634 | 1660 | if (blk_is_read_only(s->qdev.conf.blk)) { |
c5fd1fb0 PB |
1661 | scsi_check_condition(r, SENSE_CODE(WRITE_PROTECTED)); |
1662 | return; | |
1663 | } | |
1664 | ||
5222aaf2 PB |
1665 | data = g_new0(UnmapCBData, 1); |
1666 | data->r = r; | |
1667 | data->inbuf = &p[8]; | |
1668 | data->count = lduw_be_p(&p[2]) >> 4; | |
1669 | ||
1670 | /* The matching unref is in scsi_unmap_complete, before data is freed. */ | |
1671 | scsi_req_ref(&r->req); | |
5fd2b563 | 1672 | scsi_unmap_complete_noio(data, 0); |
5222aaf2 PB |
1673 | return; |
1674 | ||
1675 | invalid_param_len: | |
1676 | scsi_check_condition(r, SENSE_CODE(INVALID_PARAM_LEN)); | |
823bd739 PB |
1677 | return; |
1678 | ||
1679 | invalid_field: | |
1680 | scsi_check_condition(r, SENSE_CODE(INVALID_FIELD)); | |
5222aaf2 PB |
1681 | } |
1682 | ||
84f94a9a PB |
1683 | typedef struct WriteSameCBData { |
1684 | SCSIDiskReq *r; | |
1685 | int64_t sector; | |
1686 | int nb_sectors; | |
1687 | QEMUIOVector qiov; | |
1688 | struct iovec iov; | |
1689 | } WriteSameCBData; | |
1690 | ||
1691 | static void scsi_write_same_complete(void *opaque, int ret) | |
1692 | { | |
1693 | WriteSameCBData *data = opaque; | |
1694 | SCSIDiskReq *r = data->r; | |
1695 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); | |
1696 | ||
1697 | assert(r->req.aiocb != NULL); | |
1698 | r->req.aiocb = NULL; | |
5b956f41 | 1699 | if (scsi_disk_req_check_error(r, ret, true)) { |
84f94a9a PB |
1700 | goto done; |
1701 | } | |
1702 | ||
d7628080 AG |
1703 | block_acct_done(blk_get_stats(s->qdev.conf.blk), &r->acct); |
1704 | ||
84f94a9a PB |
1705 | data->nb_sectors -= data->iov.iov_len / 512; |
1706 | data->sector += data->iov.iov_len / 512; | |
1707 | data->iov.iov_len = MIN(data->nb_sectors * 512, data->iov.iov_len); | |
1708 | if (data->iov.iov_len) { | |
4be74634 | 1709 | block_acct_start(blk_get_stats(s->qdev.conf.blk), &r->acct, |
5366d0c8 | 1710 | data->iov.iov_len, BLOCK_ACCT_WRITE); |
03c90063 EB |
1711 | /* Reinitialize qiov, to handle unaligned WRITE SAME request |
1712 | * where final qiov may need smaller size */ | |
a56537a1 | 1713 | qemu_iovec_init_external(&data->qiov, &data->iov, 1); |
03c90063 EB |
1714 | r->req.aiocb = blk_aio_pwritev(s->qdev.conf.blk, |
1715 | data->sector << BDRV_SECTOR_BITS, | |
1716 | &data->qiov, 0, | |
1717 | scsi_write_same_complete, data); | |
84f94a9a PB |
1718 | return; |
1719 | } | |
1720 | ||
1721 | scsi_req_complete(&r->req, GOOD); | |
1722 | ||
1723 | done: | |
3df9caf8 | 1724 | scsi_req_unref(&r->req); |
84f94a9a PB |
1725 | qemu_vfree(data->iov.iov_base); |
1726 | g_free(data); | |
1727 | } | |
1728 | ||
1729 | static void scsi_disk_emulate_write_same(SCSIDiskReq *r, uint8_t *inbuf) | |
1730 | { | |
1731 | SCSIRequest *req = &r->req; | |
1732 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, req->dev); | |
1894df02 | 1733 | uint32_t nb_sectors = scsi_data_cdb_xfer(r->req.cmd.buf); |
84f94a9a PB |
1734 | WriteSameCBData *data; |
1735 | uint8_t *buf; | |
1736 | int i; | |
1737 | ||
1738 | /* Fail if PBDATA=1 or LBDATA=1 or ANCHOR=1. */ | |
1739 | if (nb_sectors == 0 || (req->cmd.buf[1] & 0x16)) { | |
1740 | scsi_check_condition(r, SENSE_CODE(INVALID_FIELD)); | |
1741 | return; | |
1742 | } | |
1743 | ||
4be74634 | 1744 | if (blk_is_read_only(s->qdev.conf.blk)) { |
84f94a9a PB |
1745 | scsi_check_condition(r, SENSE_CODE(WRITE_PROTECTED)); |
1746 | return; | |
1747 | } | |
1748 | if (!check_lba_range(s, r->req.cmd.lba, nb_sectors)) { | |
1749 | scsi_check_condition(r, SENSE_CODE(LBA_OUT_OF_RANGE)); | |
1750 | return; | |
1751 | } | |
1752 | ||
1753 | if (buffer_is_zero(inbuf, s->qdev.blocksize)) { | |
1754 | int flags = (req->cmd.buf[1] & 0x8) ? BDRV_REQ_MAY_UNMAP : 0; | |
1755 | ||
1756 | /* The request is used as the AIO opaque value, so add a ref. */ | |
1757 | scsi_req_ref(&r->req); | |
4be74634 | 1758 | block_acct_start(blk_get_stats(s->qdev.conf.blk), &r->acct, |
5366d0c8 BC |
1759 | nb_sectors * s->qdev.blocksize, |
1760 | BLOCK_ACCT_WRITE); | |
d004bd52 | 1761 | r->req.aiocb = blk_aio_pwrite_zeroes(s->qdev.conf.blk, |
983a1600 EB |
1762 | r->req.cmd.lba * s->qdev.blocksize, |
1763 | nb_sectors * s->qdev.blocksize, | |
4be74634 | 1764 | flags, scsi_aio_complete, r); |
84f94a9a PB |
1765 | return; |
1766 | } | |
1767 | ||
1768 | data = g_new0(WriteSameCBData, 1); | |
1769 | data->r = r; | |
1770 | data->sector = r->req.cmd.lba * (s->qdev.blocksize / 512); | |
1771 | data->nb_sectors = nb_sectors * (s->qdev.blocksize / 512); | |
1772 | data->iov.iov_len = MIN(data->nb_sectors * 512, SCSI_WRITE_SAME_MAX); | |
4be74634 MA |
1773 | data->iov.iov_base = buf = blk_blockalign(s->qdev.conf.blk, |
1774 | data->iov.iov_len); | |
84f94a9a PB |
1775 | qemu_iovec_init_external(&data->qiov, &data->iov, 1); |
1776 | ||
1777 | for (i = 0; i < data->iov.iov_len; i += s->qdev.blocksize) { | |
1778 | memcpy(&buf[i], inbuf, s->qdev.blocksize); | |
1779 | } | |
1780 | ||
1781 | scsi_req_ref(&r->req); | |
4be74634 | 1782 | block_acct_start(blk_get_stats(s->qdev.conf.blk), &r->acct, |
5366d0c8 | 1783 | data->iov.iov_len, BLOCK_ACCT_WRITE); |
03c90063 EB |
1784 | r->req.aiocb = blk_aio_pwritev(s->qdev.conf.blk, |
1785 | data->sector << BDRV_SECTOR_BITS, | |
1786 | &data->qiov, 0, | |
1787 | scsi_write_same_complete, data); | |
84f94a9a PB |
1788 | } |
1789 | ||
314a3299 PB |
1790 | static void scsi_disk_emulate_write_data(SCSIRequest *req) |
1791 | { | |
af6d510d PB |
1792 | SCSIDiskReq *r = DO_UPCAST(SCSIDiskReq, req, req); |
1793 | ||
1794 | if (r->iov.iov_len) { | |
1795 | int buflen = r->iov.iov_len; | |
79fb50bb | 1796 | DPRINTF("Write buf_len=%d\n", buflen); |
af6d510d PB |
1797 | r->iov.iov_len = 0; |
1798 | scsi_req_data(&r->req, buflen); | |
1799 | return; | |
1800 | } | |
1801 | ||
1802 | switch (req->cmd.buf[0]) { | |
1803 | case MODE_SELECT: | |
1804 | case MODE_SELECT_10: | |
1805 | /* This also clears the sense buffer for REQUEST SENSE. */ | |
380feaff | 1806 | scsi_disk_emulate_mode_select(r, r->iov.iov_base); |
af6d510d PB |
1807 | break; |
1808 | ||
5222aaf2 PB |
1809 | case UNMAP: |
1810 | scsi_disk_emulate_unmap(r, r->iov.iov_base); | |
1811 | break; | |
1812 | ||
d97e7730 PB |
1813 | case VERIFY_10: |
1814 | case VERIFY_12: | |
1815 | case VERIFY_16: | |
1816 | if (r->req.status == -1) { | |
1817 | scsi_check_condition(r, SENSE_CODE(INVALID_FIELD)); | |
1818 | } | |
1819 | break; | |
1820 | ||
84f94a9a PB |
1821 | case WRITE_SAME_10: |
1822 | case WRITE_SAME_16: | |
1823 | scsi_disk_emulate_write_same(r, r->iov.iov_base); | |
1824 | break; | |
d97e7730 | 1825 | |
af6d510d PB |
1826 | default: |
1827 | abort(); | |
1828 | } | |
314a3299 PB |
1829 | } |
1830 | ||
b08d0ea0 | 1831 | static int32_t scsi_disk_emulate_command(SCSIRequest *req, uint8_t *buf) |
aa5dbdc1 | 1832 | { |
b08d0ea0 | 1833 | SCSIDiskReq *r = DO_UPCAST(SCSIDiskReq, req, req); |
e7e25e32 | 1834 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, req->dev); |
e7e25e32 | 1835 | uint64_t nb_sectors; |
7285477a | 1836 | uint8_t *outbuf; |
af6d510d | 1837 | int buflen; |
aa5dbdc1 | 1838 | |
b08d0ea0 PB |
1839 | switch (req->cmd.buf[0]) { |
1840 | case INQUIRY: | |
1841 | case MODE_SENSE: | |
1842 | case MODE_SENSE_10: | |
1843 | case RESERVE: | |
1844 | case RESERVE_10: | |
1845 | case RELEASE: | |
1846 | case RELEASE_10: | |
1847 | case START_STOP: | |
1848 | case ALLOW_MEDIUM_REMOVAL: | |
1849 | case GET_CONFIGURATION: | |
1850 | case GET_EVENT_STATUS_NOTIFICATION: | |
1851 | case MECHANISM_STATUS: | |
1852 | case REQUEST_SENSE: | |
1853 | break; | |
1854 | ||
1855 | default: | |
cd723b85 | 1856 | if (!blk_is_available(s->qdev.conf.blk)) { |
b08d0ea0 PB |
1857 | scsi_check_condition(r, SENSE_CODE(NO_MEDIUM)); |
1858 | return 0; | |
1859 | } | |
1860 | break; | |
1861 | } | |
1862 | ||
c8dcb531 PB |
1863 | /* |
1864 | * FIXME: we shouldn't return anything bigger than 4k, but the code | |
1865 | * requires the buffer to be as big as req->cmd.xfer in several | |
1866 | * places. So, do not allow CDBs with a very large ALLOCATION | |
1867 | * LENGTH. The real fix would be to modify scsi_read_data and | |
1868 | * dma_buf_read, so that they return data beyond the buflen | |
1869 | * as all zeros. | |
1870 | */ | |
1871 | if (req->cmd.xfer > 65536) { | |
1872 | goto illegal_request; | |
1873 | } | |
1874 | r->buflen = MAX(4096, req->cmd.xfer); | |
1875 | ||
7285477a | 1876 | if (!r->iov.iov_base) { |
4be74634 | 1877 | r->iov.iov_base = blk_blockalign(s->qdev.conf.blk, r->buflen); |
7285477a PB |
1878 | } |
1879 | ||
af6d510d | 1880 | buflen = req->cmd.xfer; |
7285477a | 1881 | outbuf = r->iov.iov_base; |
c8dcb531 | 1882 | memset(outbuf, 0, r->buflen); |
aa5dbdc1 GH |
1883 | switch (req->cmd.buf[0]) { |
1884 | case TEST_UNIT_READY: | |
cd723b85 | 1885 | assert(blk_is_available(s->qdev.conf.blk)); |
5f71d32f | 1886 | break; |
0b06c059 GH |
1887 | case INQUIRY: |
1888 | buflen = scsi_disk_emulate_inquiry(req, outbuf); | |
f01b5931 | 1889 | if (buflen < 0) { |
0b06c059 | 1890 | goto illegal_request; |
f01b5931 | 1891 | } |
5f71d32f | 1892 | break; |
ebddfcbe GH |
1893 | case MODE_SENSE: |
1894 | case MODE_SENSE_10: | |
cfc606da | 1895 | buflen = scsi_disk_emulate_mode_sense(r, outbuf); |
f01b5931 | 1896 | if (buflen < 0) { |
ebddfcbe | 1897 | goto illegal_request; |
f01b5931 | 1898 | } |
ebddfcbe | 1899 | break; |
02880f43 GH |
1900 | case READ_TOC: |
1901 | buflen = scsi_disk_emulate_read_toc(req, outbuf); | |
f01b5931 | 1902 | if (buflen < 0) { |
02880f43 | 1903 | goto illegal_request; |
f01b5931 | 1904 | } |
02880f43 | 1905 | break; |
3d53ba18 | 1906 | case RESERVE: |
f01b5931 | 1907 | if (req->cmd.buf[1] & 1) { |
3d53ba18 | 1908 | goto illegal_request; |
f01b5931 | 1909 | } |
3d53ba18 GH |
1910 | break; |
1911 | case RESERVE_10: | |
f01b5931 | 1912 | if (req->cmd.buf[1] & 3) { |
3d53ba18 | 1913 | goto illegal_request; |
f01b5931 | 1914 | } |
3d53ba18 GH |
1915 | break; |
1916 | case RELEASE: | |
f01b5931 | 1917 | if (req->cmd.buf[1] & 1) { |
3d53ba18 | 1918 | goto illegal_request; |
f01b5931 | 1919 | } |
3d53ba18 GH |
1920 | break; |
1921 | case RELEASE_10: | |
f01b5931 | 1922 | if (req->cmd.buf[1] & 3) { |
3d53ba18 | 1923 | goto illegal_request; |
f01b5931 | 1924 | } |
3d53ba18 | 1925 | break; |
8d3628ff | 1926 | case START_STOP: |
68bb01f3 | 1927 | if (scsi_disk_emulate_start_stop(r) < 0) { |
b08d0ea0 | 1928 | return 0; |
68bb01f3 | 1929 | } |
5f71d32f | 1930 | break; |
c68b9f34 | 1931 | case ALLOW_MEDIUM_REMOVAL: |
81b1008d | 1932 | s->tray_locked = req->cmd.buf[4] & 1; |
4be74634 | 1933 | blk_lock_medium(s->qdev.conf.blk, req->cmd.buf[4] & 1); |
5f71d32f | 1934 | break; |
5e30a07d | 1935 | case READ_CAPACITY_10: |
e7e25e32 | 1936 | /* The normal LEN field for this command is zero. */ |
5f71d32f | 1937 | memset(outbuf, 0, 8); |
4be74634 | 1938 | blk_get_geometry(s->qdev.conf.blk, &nb_sectors); |
f01b5931 | 1939 | if (!nb_sectors) { |
9bcaf4fe | 1940 | scsi_check_condition(r, SENSE_CODE(LUN_NOT_READY)); |
0369f06f | 1941 | return 0; |
f01b5931 | 1942 | } |
7cec78b6 PB |
1943 | if ((req->cmd.buf[8] & 1) == 0 && req->cmd.lba) { |
1944 | goto illegal_request; | |
1945 | } | |
69377307 | 1946 | nb_sectors /= s->qdev.blocksize / 512; |
e7e25e32 GH |
1947 | /* Returned value is the address of the last sector. */ |
1948 | nb_sectors--; | |
1949 | /* Remember the new size for read/write sanity checking. */ | |
7877903a | 1950 | s->qdev.max_lba = nb_sectors; |
e7e25e32 | 1951 | /* Clip to 2TB, instead of returning capacity modulo 2TB. */ |
f01b5931 | 1952 | if (nb_sectors > UINT32_MAX) { |
e7e25e32 | 1953 | nb_sectors = UINT32_MAX; |
f01b5931 | 1954 | } |
e7e25e32 GH |
1955 | outbuf[0] = (nb_sectors >> 24) & 0xff; |
1956 | outbuf[1] = (nb_sectors >> 16) & 0xff; | |
1957 | outbuf[2] = (nb_sectors >> 8) & 0xff; | |
1958 | outbuf[3] = nb_sectors & 0xff; | |
1959 | outbuf[4] = 0; | |
1960 | outbuf[5] = 0; | |
69377307 | 1961 | outbuf[6] = s->qdev.blocksize >> 8; |
e7e25e32 | 1962 | outbuf[7] = 0; |
5f71d32f | 1963 | break; |
f3b338ef PB |
1964 | case REQUEST_SENSE: |
1965 | /* Just return "NO SENSE". */ | |
1966 | buflen = scsi_build_sense(NULL, 0, outbuf, r->buflen, | |
1967 | (req->cmd.buf[1] & 1) == 0); | |
c8dcb531 PB |
1968 | if (buflen < 0) { |
1969 | goto illegal_request; | |
1970 | } | |
f3b338ef | 1971 | break; |
b6c251ab PB |
1972 | case MECHANISM_STATUS: |
1973 | buflen = scsi_emulate_mechanism_status(s, outbuf); | |
1974 | if (buflen < 0) { | |
1975 | goto illegal_request; | |
1976 | } | |
1977 | break; | |
38215553 | 1978 | case GET_CONFIGURATION: |
430ee2f2 | 1979 | buflen = scsi_get_configuration(s, outbuf); |
b6c251ab PB |
1980 | if (buflen < 0) { |
1981 | goto illegal_request; | |
1982 | } | |
1983 | break; | |
1984 | case GET_EVENT_STATUS_NOTIFICATION: | |
1985 | buflen = scsi_get_event_status_notification(s, r, outbuf); | |
1986 | if (buflen < 0) { | |
1987 | goto illegal_request; | |
1988 | } | |
1989 | break; | |
1a4f0c3a PB |
1990 | case READ_DISC_INFORMATION: |
1991 | buflen = scsi_read_disc_information(s, r, outbuf); | |
1992 | if (buflen < 0) { | |
1993 | goto illegal_request; | |
1994 | } | |
1995 | break; | |
b6c251ab PB |
1996 | case READ_DVD_STRUCTURE: |
1997 | buflen = scsi_read_dvd_structure(s, r, outbuf); | |
1998 | if (buflen < 0) { | |
1999 | goto illegal_request; | |
2000 | } | |
38215553 | 2001 | break; |
f6515262 | 2002 | case SERVICE_ACTION_IN_16: |
5dd90e2a | 2003 | /* Service Action In subcommands. */ |
f6515262 | 2004 | if ((req->cmd.buf[1] & 31) == SAI_READ_CAPACITY_16) { |
5dd90e2a GH |
2005 | DPRINTF("SAI READ CAPACITY(16)\n"); |
2006 | memset(outbuf, 0, req->cmd.xfer); | |
4be74634 | 2007 | blk_get_geometry(s->qdev.conf.blk, &nb_sectors); |
f01b5931 | 2008 | if (!nb_sectors) { |
9bcaf4fe | 2009 | scsi_check_condition(r, SENSE_CODE(LUN_NOT_READY)); |
0369f06f | 2010 | return 0; |
f01b5931 | 2011 | } |
7cec78b6 PB |
2012 | if ((req->cmd.buf[14] & 1) == 0 && req->cmd.lba) { |
2013 | goto illegal_request; | |
2014 | } | |
69377307 | 2015 | nb_sectors /= s->qdev.blocksize / 512; |
5dd90e2a GH |
2016 | /* Returned value is the address of the last sector. */ |
2017 | nb_sectors--; | |
2018 | /* Remember the new size for read/write sanity checking. */ | |
7877903a | 2019 | s->qdev.max_lba = nb_sectors; |
5dd90e2a GH |
2020 | outbuf[0] = (nb_sectors >> 56) & 0xff; |
2021 | outbuf[1] = (nb_sectors >> 48) & 0xff; | |
2022 | outbuf[2] = (nb_sectors >> 40) & 0xff; | |
2023 | outbuf[3] = (nb_sectors >> 32) & 0xff; | |
2024 | outbuf[4] = (nb_sectors >> 24) & 0xff; | |
2025 | outbuf[5] = (nb_sectors >> 16) & 0xff; | |
2026 | outbuf[6] = (nb_sectors >> 8) & 0xff; | |
2027 | outbuf[7] = nb_sectors & 0xff; | |
2028 | outbuf[8] = 0; | |
2029 | outbuf[9] = 0; | |
69377307 | 2030 | outbuf[10] = s->qdev.blocksize >> 8; |
5dd90e2a | 2031 | outbuf[11] = 0; |
ee3659e3 CH |
2032 | outbuf[12] = 0; |
2033 | outbuf[13] = get_physical_block_exp(&s->qdev.conf); | |
ea3bd56f CH |
2034 | |
2035 | /* set TPE bit if the format supports discard */ | |
2036 | if (s->qdev.conf.discard_granularity) { | |
2037 | outbuf[14] = 0x80; | |
2038 | } | |
2039 | ||
5dd90e2a | 2040 | /* Protection, exponent and lowest lba field left blank. */ |
5dd90e2a GH |
2041 | break; |
2042 | } | |
2043 | DPRINTF("Unsupported Service Action In\n"); | |
2044 | goto illegal_request; | |
101aa85f PB |
2045 | case SYNCHRONIZE_CACHE: |
2046 | /* The request is used as the AIO opaque value, so add a ref. */ | |
2047 | scsi_req_ref(&r->req); | |
4be74634 | 2048 | block_acct_start(blk_get_stats(s->qdev.conf.blk), &r->acct, 0, |
5366d0c8 | 2049 | BLOCK_ACCT_FLUSH); |
4be74634 | 2050 | r->req.aiocb = blk_aio_flush(s->qdev.conf.blk, scsi_aio_complete, r); |
101aa85f PB |
2051 | return 0; |
2052 | case SEEK_10: | |
2053 | DPRINTF("Seek(10) (sector %" PRId64 ")\n", r->req.cmd.lba); | |
2054 | if (r->req.cmd.lba > s->qdev.max_lba) { | |
2055 | goto illegal_lba; | |
2056 | } | |
2057 | break; | |
101aa85f | 2058 | case MODE_SELECT: |
142c2145 | 2059 | DPRINTF("Mode Select(6) (len %lu)\n", (unsigned long)r->req.cmd.xfer); |
101aa85f PB |
2060 | break; |
2061 | case MODE_SELECT_10: | |
142c2145 | 2062 | DPRINTF("Mode Select(10) (len %lu)\n", (unsigned long)r->req.cmd.xfer); |
101aa85f | 2063 | break; |
5222aaf2 | 2064 | case UNMAP: |
142c2145 | 2065 | DPRINTF("Unmap (len %lu)\n", (unsigned long)r->req.cmd.xfer); |
5222aaf2 | 2066 | break; |
d97e7730 PB |
2067 | case VERIFY_10: |
2068 | case VERIFY_12: | |
2069 | case VERIFY_16: | |
4525c133 | 2070 | DPRINTF("Verify (bytchk %d)\n", (req->cmd.buf[1] >> 1) & 3); |
d97e7730 PB |
2071 | if (req->cmd.buf[1] & 6) { |
2072 | goto illegal_request; | |
2073 | } | |
2074 | break; | |
101aa85f | 2075 | case WRITE_SAME_10: |
101aa85f | 2076 | case WRITE_SAME_16: |
84f94a9a PB |
2077 | DPRINTF("WRITE SAME %d (len %lu)\n", |
2078 | req->cmd.buf[0] == WRITE_SAME_10 ? 10 : 16, | |
142c2145 | 2079 | (unsigned long)r->req.cmd.xfer); |
84f94a9a | 2080 | break; |
aa5dbdc1 | 2081 | default: |
b9e77bc7 AK |
2082 | DPRINTF("Unknown SCSI command (%2.2x=%s)\n", buf[0], |
2083 | scsi_command_name(buf[0])); | |
b45ef674 | 2084 | scsi_check_condition(r, SENSE_CODE(INVALID_OPCODE)); |
b08d0ea0 | 2085 | return 0; |
aa5dbdc1 | 2086 | } |
314a3299 | 2087 | assert(!r->req.aiocb); |
c8dcb531 | 2088 | r->iov.iov_len = MIN(r->buflen, req->cmd.xfer); |
b08d0ea0 PB |
2089 | if (r->iov.iov_len == 0) { |
2090 | scsi_req_complete(&r->req, GOOD); | |
2091 | } | |
af6d510d PB |
2092 | if (r->req.cmd.mode == SCSI_XFER_TO_DEV) { |
2093 | assert(r->iov.iov_len == req->cmd.xfer); | |
2094 | return -r->iov.iov_len; | |
2095 | } else { | |
2096 | return r->iov.iov_len; | |
2097 | } | |
aa5dbdc1 | 2098 | |
aa5dbdc1 | 2099 | illegal_request: |
cfc606da PB |
2100 | if (r->req.status == -1) { |
2101 | scsi_check_condition(r, SENSE_CODE(INVALID_FIELD)); | |
2102 | } | |
b08d0ea0 | 2103 | return 0; |
101aa85f PB |
2104 | |
2105 | illegal_lba: | |
2106 | scsi_check_condition(r, SENSE_CODE(LBA_OUT_OF_RANGE)); | |
2107 | return 0; | |
aa5dbdc1 GH |
2108 | } |
2109 | ||
2e5d83bb PB |
2110 | /* Execute a scsi command. Returns the length of the data expected by the |
2111 | command. This will be Positive for data transfers from the device | |
2112 | (eg. disk reads), negative for transfers to the device (eg. disk writes), | |
2113 | and zero if the command does not transfer any data. */ | |
2114 | ||
b08d0ea0 | 2115 | static int32_t scsi_disk_dma_command(SCSIRequest *req, uint8_t *buf) |
2e5d83bb | 2116 | { |
5c6c0e51 HR |
2117 | SCSIDiskReq *r = DO_UPCAST(SCSIDiskReq, req, req); |
2118 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, req->dev); | |
94f8ba11 | 2119 | SCSIDiskClass *sdc = (SCSIDiskClass *) object_get_class(OBJECT(s)); |
e93176d5 | 2120 | uint32_t len; |
a917d384 | 2121 | uint8_t command; |
a917d384 PB |
2122 | |
2123 | command = buf[0]; | |
aa5dbdc1 | 2124 | |
cd723b85 | 2125 | if (!blk_is_available(s->qdev.conf.blk)) { |
b08d0ea0 PB |
2126 | scsi_check_condition(r, SENSE_CODE(NO_MEDIUM)); |
2127 | return 0; | |
9bcaf4fe PB |
2128 | } |
2129 | ||
1894df02 | 2130 | len = scsi_data_cdb_xfer(r->req.cmd.buf); |
a917d384 | 2131 | switch (command) { |
ebf46023 GH |
2132 | case READ_6: |
2133 | case READ_10: | |
bd536cf3 GH |
2134 | case READ_12: |
2135 | case READ_16: | |
e93176d5 | 2136 | DPRINTF("Read (sector %" PRId64 ", count %u)\n", r->req.cmd.lba, len); |
96bdbbab RS |
2137 | if (r->req.cmd.buf[1] & 0xe0) { |
2138 | goto illegal_request; | |
2139 | } | |
444bc908 | 2140 | if (!check_lba_range(s, r->req.cmd.lba, len)) { |
274fb0e1 | 2141 | goto illegal_lba; |
f01b5931 | 2142 | } |
69377307 PB |
2143 | r->sector = r->req.cmd.lba * (s->qdev.blocksize / 512); |
2144 | r->sector_count = len * (s->qdev.blocksize / 512); | |
2e5d83bb | 2145 | break; |
ebf46023 GH |
2146 | case WRITE_6: |
2147 | case WRITE_10: | |
bd536cf3 GH |
2148 | case WRITE_12: |
2149 | case WRITE_16: | |
5e30a07d | 2150 | case WRITE_VERIFY_10: |
ebef0bbb BK |
2151 | case WRITE_VERIFY_12: |
2152 | case WRITE_VERIFY_16: | |
4be74634 | 2153 | if (blk_is_read_only(s->qdev.conf.blk)) { |
6a8a685c RS |
2154 | scsi_check_condition(r, SENSE_CODE(WRITE_PROTECTED)); |
2155 | return 0; | |
2156 | } | |
e93176d5 | 2157 | DPRINTF("Write %s(sector %" PRId64 ", count %u)\n", |
2dd791b6 HR |
2158 | (command & 0xe) == 0xe ? "And Verify " : "", |
2159 | r->req.cmd.lba, len); | |
96bdbbab RS |
2160 | if (r->req.cmd.buf[1] & 0xe0) { |
2161 | goto illegal_request; | |
2162 | } | |
444bc908 | 2163 | if (!check_lba_range(s, r->req.cmd.lba, len)) { |
274fb0e1 | 2164 | goto illegal_lba; |
f01b5931 | 2165 | } |
69377307 PB |
2166 | r->sector = r->req.cmd.lba * (s->qdev.blocksize / 512); |
2167 | r->sector_count = len * (s->qdev.blocksize / 512); | |
2e5d83bb | 2168 | break; |
101aa85f | 2169 | default: |
b08d0ea0 | 2170 | abort(); |
96bdbbab RS |
2171 | illegal_request: |
2172 | scsi_check_condition(r, SENSE_CODE(INVALID_FIELD)); | |
2173 | return 0; | |
274fb0e1 | 2174 | illegal_lba: |
b45ef674 | 2175 | scsi_check_condition(r, SENSE_CODE(LBA_OUT_OF_RANGE)); |
274fb0e1 | 2176 | return 0; |
2e5d83bb | 2177 | } |
94f8ba11 | 2178 | r->need_fua_emulation = sdc->need_fua_emulation(&r->req.cmd); |
b08d0ea0 | 2179 | if (r->sector_count == 0) { |
b45ef674 | 2180 | scsi_req_complete(&r->req, GOOD); |
a917d384 | 2181 | } |
b08d0ea0 | 2182 | assert(r->iov.iov_len == 0); |
efb9ee02 | 2183 | if (r->req.cmd.mode == SCSI_XFER_TO_DEV) { |
b08d0ea0 | 2184 | return -r->sector_count * 512; |
a917d384 | 2185 | } else { |
b08d0ea0 | 2186 | return r->sector_count * 512; |
2e5d83bb | 2187 | } |
2e5d83bb PB |
2188 | } |
2189 | ||
e9447f35 JK |
2190 | static void scsi_disk_reset(DeviceState *dev) |
2191 | { | |
2192 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev.qdev, dev); | |
2193 | uint64_t nb_sectors; | |
2194 | ||
c7b48872 | 2195 | scsi_device_purge_requests(&s->qdev, SENSE_CODE(RESET)); |
e9447f35 | 2196 | |
4be74634 | 2197 | blk_get_geometry(s->qdev.conf.blk, &nb_sectors); |
69377307 | 2198 | nb_sectors /= s->qdev.blocksize / 512; |
e9447f35 JK |
2199 | if (nb_sectors) { |
2200 | nb_sectors--; | |
2201 | } | |
7877903a | 2202 | s->qdev.max_lba = nb_sectors; |
7721c7f7 PH |
2203 | /* reset tray statuses */ |
2204 | s->tray_locked = 0; | |
2205 | s->tray_open = 0; | |
e9447f35 JK |
2206 | } |
2207 | ||
aaebacef PB |
2208 | static void scsi_disk_resize_cb(void *opaque) |
2209 | { | |
2210 | SCSIDiskState *s = opaque; | |
2211 | ||
2212 | /* SPC lists this sense code as available only for | |
2213 | * direct-access devices. | |
2214 | */ | |
2215 | if (s->qdev.type == TYPE_DISK) { | |
53200fad | 2216 | scsi_device_report_change(&s->qdev, SENSE_CODE(CAPACITY_CHANGED)); |
aaebacef PB |
2217 | } |
2218 | } | |
2219 | ||
7d4b4ba5 | 2220 | static void scsi_cd_change_media_cb(void *opaque, bool load) |
2c6942fa | 2221 | { |
8a9c16f6 PB |
2222 | SCSIDiskState *s = opaque; |
2223 | ||
2224 | /* | |
2225 | * When a CD gets changed, we have to report an ejected state and | |
2226 | * then a loaded state to guests so that they detect tray | |
2227 | * open/close and media change events. Guests that do not use | |
2228 | * GET_EVENT_STATUS_NOTIFICATION to detect such tray open/close | |
2229 | * states rely on this behavior. | |
2230 | * | |
2231 | * media_changed governs the state machine used for unit attention | |
2232 | * report. media_event is used by GET EVENT STATUS NOTIFICATION. | |
2233 | */ | |
2234 | s->media_changed = load; | |
2235 | s->tray_open = !load; | |
e48e84ea | 2236 | scsi_device_set_ua(&s->qdev, SENSE_CODE(UNIT_ATTENTION_NO_MEDIUM)); |
3c2f7c12 | 2237 | s->media_event = true; |
4480de19 PB |
2238 | s->eject_request = false; |
2239 | } | |
2240 | ||
2241 | static void scsi_cd_eject_request_cb(void *opaque, bool force) | |
2242 | { | |
2243 | SCSIDiskState *s = opaque; | |
2244 | ||
2245 | s->eject_request = true; | |
2246 | if (force) { | |
2247 | s->tray_locked = false; | |
2248 | } | |
2c6942fa MA |
2249 | } |
2250 | ||
e4def80b MA |
2251 | static bool scsi_cd_is_tray_open(void *opaque) |
2252 | { | |
2253 | return ((SCSIDiskState *)opaque)->tray_open; | |
2254 | } | |
2255 | ||
f107639a MA |
2256 | static bool scsi_cd_is_medium_locked(void *opaque) |
2257 | { | |
2258 | return ((SCSIDiskState *)opaque)->tray_locked; | |
2259 | } | |
2260 | ||
aaebacef | 2261 | static const BlockDevOps scsi_disk_removable_block_ops = { |
2c6942fa | 2262 | .change_media_cb = scsi_cd_change_media_cb, |
4480de19 | 2263 | .eject_request_cb = scsi_cd_eject_request_cb, |
e4def80b | 2264 | .is_tray_open = scsi_cd_is_tray_open, |
f107639a | 2265 | .is_medium_locked = scsi_cd_is_medium_locked, |
aaebacef PB |
2266 | |
2267 | .resize_cb = scsi_disk_resize_cb, | |
2268 | }; | |
2269 | ||
2270 | static const BlockDevOps scsi_disk_block_ops = { | |
2271 | .resize_cb = scsi_disk_resize_cb, | |
f107639a MA |
2272 | }; |
2273 | ||
8a9c16f6 PB |
2274 | static void scsi_disk_unit_attention_reported(SCSIDevice *dev) |
2275 | { | |
2276 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, dev); | |
2277 | if (s->media_changed) { | |
2278 | s->media_changed = false; | |
e48e84ea | 2279 | scsi_device_set_ua(&s->qdev, SENSE_CODE(MEDIUM_CHANGED)); |
8a9c16f6 PB |
2280 | } |
2281 | } | |
2282 | ||
a818a4b6 | 2283 | static void scsi_realize(SCSIDevice *dev, Error **errp) |
2e5d83bb | 2284 | { |
d52affa7 | 2285 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, dev); |
5ff5efb4 | 2286 | Error *err = NULL; |
2e5d83bb | 2287 | |
4be74634 | 2288 | if (!s->qdev.conf.blk) { |
a818a4b6 FZ |
2289 | error_setg(errp, "drive property not set"); |
2290 | return; | |
d52affa7 GH |
2291 | } |
2292 | ||
bfe3d7ac | 2293 | if (!(s->features & (1 << SCSI_DISK_F_REMOVABLE)) && |
4be74634 | 2294 | !blk_is_inserted(s->qdev.conf.blk)) { |
a818a4b6 FZ |
2295 | error_setg(errp, "Device needs media, but drive is empty"); |
2296 | return; | |
98f28ad7 MA |
2297 | } |
2298 | ||
911525db | 2299 | blkconf_serial(&s->qdev.conf, &s->serial); |
0eb28a42 | 2300 | blkconf_blocksizes(&s->qdev.conf); |
5ff5efb4 FZ |
2301 | if (dev->type == TYPE_DISK) { |
2302 | blkconf_geometry(&dev->conf, NULL, 65535, 255, 255, &err); | |
2303 | if (err) { | |
a818a4b6 FZ |
2304 | error_propagate(errp, err); |
2305 | return; | |
5ff5efb4 | 2306 | } |
b7eb0c9f | 2307 | } |
f6166a06 | 2308 | blkconf_apply_backend_options(&dev->conf); |
a0fef654 | 2309 | |
215e47b9 PB |
2310 | if (s->qdev.conf.discard_granularity == -1) { |
2311 | s->qdev.conf.discard_granularity = | |
2312 | MAX(s->qdev.conf.logical_block_size, DEFAULT_DISCARD_GRANULARITY); | |
2313 | } | |
2314 | ||
552fee93 | 2315 | if (!s->version) { |
35c2c8dc | 2316 | s->version = g_strdup(qemu_hw_version()); |
552fee93 | 2317 | } |
353815aa DF |
2318 | if (!s->vendor) { |
2319 | s->vendor = g_strdup("QEMU"); | |
2320 | } | |
552fee93 | 2321 | |
4be74634 | 2322 | if (blk_is_sg(s->qdev.conf.blk)) { |
a818a4b6 FZ |
2323 | error_setg(errp, "unwanted /dev/sg*"); |
2324 | return; | |
32bb404a MA |
2325 | } |
2326 | ||
18e673b8 PH |
2327 | if ((s->features & (1 << SCSI_DISK_F_REMOVABLE)) && |
2328 | !(s->features & (1 << SCSI_DISK_F_NO_REMOVABLE_DEVOPS))) { | |
4be74634 | 2329 | blk_set_dev_ops(s->qdev.conf.blk, &scsi_disk_removable_block_ops, s); |
aaebacef | 2330 | } else { |
4be74634 | 2331 | blk_set_dev_ops(s->qdev.conf.blk, &scsi_disk_block_ops, s); |
2e5d83bb | 2332 | } |
4be74634 | 2333 | blk_set_guest_block_size(s->qdev.conf.blk, s->qdev.blocksize); |
8cfacf07 | 2334 | |
4be74634 | 2335 | blk_iostatus_enable(s->qdev.conf.blk); |
d52affa7 GH |
2336 | } |
2337 | ||
a818a4b6 | 2338 | static void scsi_hd_realize(SCSIDevice *dev, Error **errp) |
b443ae67 | 2339 | { |
e39be482 | 2340 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, dev); |
df1d4c34 ET |
2341 | /* can happen for devices without drive. The error message for missing |
2342 | * backend will be issued in scsi_realize | |
2343 | */ | |
2344 | if (s->qdev.conf.blk) { | |
2345 | blkconf_blocksizes(&s->qdev.conf); | |
2346 | } | |
e39be482 PB |
2347 | s->qdev.blocksize = s->qdev.conf.logical_block_size; |
2348 | s->qdev.type = TYPE_DISK; | |
353815aa DF |
2349 | if (!s->product) { |
2350 | s->product = g_strdup("QEMU HARDDISK"); | |
2351 | } | |
a818a4b6 | 2352 | scsi_realize(&s->qdev, errp); |
b443ae67 MA |
2353 | } |
2354 | ||
a818a4b6 | 2355 | static void scsi_cd_realize(SCSIDevice *dev, Error **errp) |
b443ae67 | 2356 | { |
e39be482 | 2357 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, dev); |
9ef6e505 KW |
2358 | |
2359 | if (!dev->conf.blk) { | |
2360 | dev->conf.blk = blk_new(); | |
2361 | } | |
2362 | ||
e39be482 PB |
2363 | s->qdev.blocksize = 2048; |
2364 | s->qdev.type = TYPE_ROM; | |
bfe3d7ac | 2365 | s->features |= 1 << SCSI_DISK_F_REMOVABLE; |
353815aa DF |
2366 | if (!s->product) { |
2367 | s->product = g_strdup("QEMU CD-ROM"); | |
2368 | } | |
a818a4b6 | 2369 | scsi_realize(&s->qdev, errp); |
b443ae67 MA |
2370 | } |
2371 | ||
a818a4b6 | 2372 | static void scsi_disk_realize(SCSIDevice *dev, Error **errp) |
b443ae67 | 2373 | { |
95b5edcd | 2374 | DriveInfo *dinfo; |
a818a4b6 | 2375 | Error *local_err = NULL; |
b443ae67 | 2376 | |
4be74634 | 2377 | if (!dev->conf.blk) { |
a818a4b6 FZ |
2378 | scsi_realize(dev, &local_err); |
2379 | assert(local_err); | |
2380 | error_propagate(errp, local_err); | |
2381 | return; | |
b443ae67 MA |
2382 | } |
2383 | ||
4be74634 | 2384 | dinfo = blk_legacy_dinfo(dev->conf.blk); |
26f8b3a8 | 2385 | if (dinfo && dinfo->media_cd) { |
a818a4b6 | 2386 | scsi_cd_realize(dev, errp); |
e39be482 | 2387 | } else { |
a818a4b6 | 2388 | scsi_hd_realize(dev, errp); |
e39be482 | 2389 | } |
b443ae67 MA |
2390 | } |
2391 | ||
b08d0ea0 | 2392 | static const SCSIReqOps scsi_disk_emulate_reqops = { |
8dbd4574 | 2393 | .size = sizeof(SCSIDiskReq), |
12010e7b | 2394 | .free_req = scsi_free_request, |
b08d0ea0 | 2395 | .send_command = scsi_disk_emulate_command, |
314a3299 PB |
2396 | .read_data = scsi_disk_emulate_read_data, |
2397 | .write_data = scsi_disk_emulate_write_data, | |
b08d0ea0 PB |
2398 | .get_buf = scsi_get_buf, |
2399 | }; | |
2400 | ||
2401 | static const SCSIReqOps scsi_disk_dma_reqops = { | |
2402 | .size = sizeof(SCSIDiskReq), | |
2403 | .free_req = scsi_free_request, | |
2404 | .send_command = scsi_disk_dma_command, | |
12010e7b PB |
2405 | .read_data = scsi_read_data, |
2406 | .write_data = scsi_write_data, | |
12010e7b | 2407 | .get_buf = scsi_get_buf, |
43b978b9 PB |
2408 | .load_request = scsi_disk_load_request, |
2409 | .save_request = scsi_disk_save_request, | |
8dbd4574 PB |
2410 | }; |
2411 | ||
b08d0ea0 PB |
2412 | static const SCSIReqOps *const scsi_disk_reqops_dispatch[256] = { |
2413 | [TEST_UNIT_READY] = &scsi_disk_emulate_reqops, | |
2414 | [INQUIRY] = &scsi_disk_emulate_reqops, | |
2415 | [MODE_SENSE] = &scsi_disk_emulate_reqops, | |
2416 | [MODE_SENSE_10] = &scsi_disk_emulate_reqops, | |
2417 | [START_STOP] = &scsi_disk_emulate_reqops, | |
2418 | [ALLOW_MEDIUM_REMOVAL] = &scsi_disk_emulate_reqops, | |
2419 | [READ_CAPACITY_10] = &scsi_disk_emulate_reqops, | |
2420 | [READ_TOC] = &scsi_disk_emulate_reqops, | |
2421 | [READ_DVD_STRUCTURE] = &scsi_disk_emulate_reqops, | |
2422 | [READ_DISC_INFORMATION] = &scsi_disk_emulate_reqops, | |
2423 | [GET_CONFIGURATION] = &scsi_disk_emulate_reqops, | |
2424 | [GET_EVENT_STATUS_NOTIFICATION] = &scsi_disk_emulate_reqops, | |
2425 | [MECHANISM_STATUS] = &scsi_disk_emulate_reqops, | |
2426 | [SERVICE_ACTION_IN_16] = &scsi_disk_emulate_reqops, | |
2427 | [REQUEST_SENSE] = &scsi_disk_emulate_reqops, | |
2428 | [SYNCHRONIZE_CACHE] = &scsi_disk_emulate_reqops, | |
2429 | [SEEK_10] = &scsi_disk_emulate_reqops, | |
b08d0ea0 PB |
2430 | [MODE_SELECT] = &scsi_disk_emulate_reqops, |
2431 | [MODE_SELECT_10] = &scsi_disk_emulate_reqops, | |
5222aaf2 | 2432 | [UNMAP] = &scsi_disk_emulate_reqops, |
b08d0ea0 PB |
2433 | [WRITE_SAME_10] = &scsi_disk_emulate_reqops, |
2434 | [WRITE_SAME_16] = &scsi_disk_emulate_reqops, | |
d97e7730 PB |
2435 | [VERIFY_10] = &scsi_disk_emulate_reqops, |
2436 | [VERIFY_12] = &scsi_disk_emulate_reqops, | |
2437 | [VERIFY_16] = &scsi_disk_emulate_reqops, | |
b08d0ea0 PB |
2438 | |
2439 | [READ_6] = &scsi_disk_dma_reqops, | |
2440 | [READ_10] = &scsi_disk_dma_reqops, | |
2441 | [READ_12] = &scsi_disk_dma_reqops, | |
2442 | [READ_16] = &scsi_disk_dma_reqops, | |
b08d0ea0 PB |
2443 | [WRITE_6] = &scsi_disk_dma_reqops, |
2444 | [WRITE_10] = &scsi_disk_dma_reqops, | |
2445 | [WRITE_12] = &scsi_disk_dma_reqops, | |
2446 | [WRITE_16] = &scsi_disk_dma_reqops, | |
2447 | [WRITE_VERIFY_10] = &scsi_disk_dma_reqops, | |
2448 | [WRITE_VERIFY_12] = &scsi_disk_dma_reqops, | |
2449 | [WRITE_VERIFY_16] = &scsi_disk_dma_reqops, | |
2450 | }; | |
2451 | ||
63db0f0e PB |
2452 | static SCSIRequest *scsi_new_request(SCSIDevice *d, uint32_t tag, uint32_t lun, |
2453 | uint8_t *buf, void *hba_private) | |
8dbd4574 PB |
2454 | { |
2455 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, d); | |
2456 | SCSIRequest *req; | |
b08d0ea0 PB |
2457 | const SCSIReqOps *ops; |
2458 | uint8_t command; | |
8dbd4574 | 2459 | |
79fb50bb PB |
2460 | command = buf[0]; |
2461 | ops = scsi_disk_reqops_dispatch[command]; | |
2462 | if (!ops) { | |
2463 | ops = &scsi_disk_emulate_reqops; | |
2464 | } | |
2465 | req = scsi_req_alloc(ops, &s->qdev, tag, lun, hba_private); | |
2466 | ||
b08d0ea0 | 2467 | #ifdef DEBUG_SCSI |
79fb50bb | 2468 | DPRINTF("Command: lun=%d tag=0x%x data=0x%02x", lun, tag, buf[0]); |
b08d0ea0 PB |
2469 | { |
2470 | int i; | |
1894df02 | 2471 | for (i = 1; i < scsi_cdb_length(buf); i++) { |
b08d0ea0 PB |
2472 | printf(" 0x%02x", buf[i]); |
2473 | } | |
2474 | printf("\n"); | |
2475 | } | |
2476 | #endif | |
2477 | ||
8dbd4574 PB |
2478 | return req; |
2479 | } | |
2480 | ||
336a6915 PB |
2481 | #ifdef __linux__ |
2482 | static int get_device_type(SCSIDiskState *s) | |
2483 | { | |
336a6915 PB |
2484 | uint8_t cmd[16]; |
2485 | uint8_t buf[36]; | |
2486 | uint8_t sensebuf[8]; | |
2487 | sg_io_hdr_t io_header; | |
2488 | int ret; | |
2489 | ||
2490 | memset(cmd, 0, sizeof(cmd)); | |
2491 | memset(buf, 0, sizeof(buf)); | |
2492 | cmd[0] = INQUIRY; | |
2493 | cmd[4] = sizeof(buf); | |
2494 | ||
2495 | memset(&io_header, 0, sizeof(io_header)); | |
2496 | io_header.interface_id = 'S'; | |
2497 | io_header.dxfer_direction = SG_DXFER_FROM_DEV; | |
2498 | io_header.dxfer_len = sizeof(buf); | |
2499 | io_header.dxferp = buf; | |
2500 | io_header.cmdp = cmd; | |
2501 | io_header.cmd_len = sizeof(cmd); | |
2502 | io_header.mx_sb_len = sizeof(sensebuf); | |
2503 | io_header.sbp = sensebuf; | |
2504 | io_header.timeout = 6000; /* XXX */ | |
2505 | ||
4be74634 | 2506 | ret = blk_ioctl(s->qdev.conf.blk, SG_IO, &io_header); |
336a6915 PB |
2507 | if (ret < 0 || io_header.driver_status || io_header.host_status) { |
2508 | return -1; | |
2509 | } | |
2510 | s->qdev.type = buf[0]; | |
bfe3d7ac PB |
2511 | if (buf[1] & 0x80) { |
2512 | s->features |= 1 << SCSI_DISK_F_REMOVABLE; | |
2513 | } | |
336a6915 PB |
2514 | return 0; |
2515 | } | |
2516 | ||
a818a4b6 | 2517 | static void scsi_block_realize(SCSIDevice *dev, Error **errp) |
336a6915 PB |
2518 | { |
2519 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, dev); | |
2520 | int sg_version; | |
2521 | int rc; | |
2522 | ||
4be74634 | 2523 | if (!s->qdev.conf.blk) { |
a818a4b6 FZ |
2524 | error_setg(errp, "drive property not set"); |
2525 | return; | |
336a6915 PB |
2526 | } |
2527 | ||
2528 | /* check we are using a driver managing SG_IO (version 3 and after) */ | |
4be74634 | 2529 | rc = blk_ioctl(s->qdev.conf.blk, SG_GET_VERSION_NUM, &sg_version); |
4bbeb8b1 | 2530 | if (rc < 0) { |
a818a4b6 | 2531 | error_setg(errp, "cannot get SG_IO version number: %s. " |
6ee143a0 | 2532 | "Is this a SCSI device?", |
4bbeb8b1 | 2533 | strerror(-rc)); |
a818a4b6 | 2534 | return; |
4bbeb8b1 FZ |
2535 | } |
2536 | if (sg_version < 30000) { | |
a818a4b6 FZ |
2537 | error_setg(errp, "scsi generic interface too old"); |
2538 | return; | |
336a6915 PB |
2539 | } |
2540 | ||
2541 | /* get device type from INQUIRY data */ | |
2542 | rc = get_device_type(s); | |
2543 | if (rc < 0) { | |
a818a4b6 FZ |
2544 | error_setg(errp, "INQUIRY failed"); |
2545 | return; | |
336a6915 PB |
2546 | } |
2547 | ||
2548 | /* Make a guess for the block size, we'll fix it when the guest sends. | |
2549 | * READ CAPACITY. If they don't, they likely would assume these sizes | |
2550 | * anyway. (TODO: check in /sys). | |
2551 | */ | |
2552 | if (s->qdev.type == TYPE_ROM || s->qdev.type == TYPE_WORM) { | |
2553 | s->qdev.blocksize = 2048; | |
2554 | } else { | |
2555 | s->qdev.blocksize = 512; | |
2556 | } | |
18e673b8 PH |
2557 | |
2558 | /* Makes the scsi-block device not removable by using HMP and QMP eject | |
2559 | * command. | |
2560 | */ | |
2561 | s->features |= (1 << SCSI_DISK_F_NO_REMOVABLE_DEVOPS); | |
2562 | ||
a818a4b6 | 2563 | scsi_realize(&s->qdev, errp); |
9fd7e859 | 2564 | scsi_generic_read_device_identification(&s->qdev); |
336a6915 PB |
2565 | } |
2566 | ||
8fdc7839 PB |
2567 | typedef struct SCSIBlockReq { |
2568 | SCSIDiskReq req; | |
2569 | sg_io_hdr_t io_header; | |
2570 | ||
2571 | /* Selected bytes of the original CDB, copied into our own CDB. */ | |
2572 | uint8_t cmd, cdb1, group_number; | |
2573 | ||
2574 | /* CDB passed to SG_IO. */ | |
2575 | uint8_t cdb[16]; | |
2576 | } SCSIBlockReq; | |
2577 | ||
2578 | static BlockAIOCB *scsi_block_do_sgio(SCSIBlockReq *req, | |
2579 | int64_t offset, QEMUIOVector *iov, | |
2580 | int direction, | |
2581 | BlockCompletionFunc *cb, void *opaque) | |
2582 | { | |
2583 | sg_io_hdr_t *io_header = &req->io_header; | |
2584 | SCSIDiskReq *r = &req->req; | |
2585 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); | |
2586 | int nb_logical_blocks; | |
2587 | uint64_t lba; | |
2588 | BlockAIOCB *aiocb; | |
2589 | ||
2590 | /* This is not supported yet. It can only happen if the guest does | |
2591 | * reads and writes that are not aligned to one logical sectors | |
2592 | * _and_ cover multiple MemoryRegions. | |
2593 | */ | |
2594 | assert(offset % s->qdev.blocksize == 0); | |
2595 | assert(iov->size % s->qdev.blocksize == 0); | |
2596 | ||
2597 | io_header->interface_id = 'S'; | |
2598 | ||
2599 | /* The data transfer comes from the QEMUIOVector. */ | |
2600 | io_header->dxfer_direction = direction; | |
2601 | io_header->dxfer_len = iov->size; | |
2602 | io_header->dxferp = (void *)iov->iov; | |
2603 | io_header->iovec_count = iov->niov; | |
2604 | assert(io_header->iovec_count == iov->niov); /* no overflow! */ | |
2605 | ||
2606 | /* Build a new CDB with the LBA and length patched in, in case | |
2607 | * DMA helpers split the transfer in multiple segments. Do not | |
2608 | * build a CDB smaller than what the guest wanted, and only build | |
2609 | * a larger one if strictly necessary. | |
2610 | */ | |
2611 | io_header->cmdp = req->cdb; | |
2612 | lba = offset / s->qdev.blocksize; | |
2613 | nb_logical_blocks = io_header->dxfer_len / s->qdev.blocksize; | |
2614 | ||
2615 | if ((req->cmd >> 5) == 0 && lba <= 0x1ffff) { | |
2616 | /* 6-byte CDB */ | |
2617 | stl_be_p(&req->cdb[0], lba | (req->cmd << 24)); | |
2618 | req->cdb[4] = nb_logical_blocks; | |
2619 | req->cdb[5] = 0; | |
2620 | io_header->cmd_len = 6; | |
2621 | } else if ((req->cmd >> 5) <= 1 && lba <= 0xffffffffULL) { | |
2622 | /* 10-byte CDB */ | |
2623 | req->cdb[0] = (req->cmd & 0x1f) | 0x20; | |
2624 | req->cdb[1] = req->cdb1; | |
2625 | stl_be_p(&req->cdb[2], lba); | |
2626 | req->cdb[6] = req->group_number; | |
2627 | stw_be_p(&req->cdb[7], nb_logical_blocks); | |
2628 | req->cdb[9] = 0; | |
2629 | io_header->cmd_len = 10; | |
2630 | } else if ((req->cmd >> 5) != 4 && lba <= 0xffffffffULL) { | |
2631 | /* 12-byte CDB */ | |
2632 | req->cdb[0] = (req->cmd & 0x1f) | 0xA0; | |
2633 | req->cdb[1] = req->cdb1; | |
2634 | stl_be_p(&req->cdb[2], lba); | |
2635 | stl_be_p(&req->cdb[6], nb_logical_blocks); | |
2636 | req->cdb[10] = req->group_number; | |
2637 | req->cdb[11] = 0; | |
2638 | io_header->cmd_len = 12; | |
2639 | } else { | |
2640 | /* 16-byte CDB */ | |
2641 | req->cdb[0] = (req->cmd & 0x1f) | 0x80; | |
2642 | req->cdb[1] = req->cdb1; | |
2643 | stq_be_p(&req->cdb[2], lba); | |
2644 | stl_be_p(&req->cdb[10], nb_logical_blocks); | |
2645 | req->cdb[14] = req->group_number; | |
2646 | req->cdb[15] = 0; | |
2647 | io_header->cmd_len = 16; | |
2648 | } | |
2649 | ||
2650 | /* The rest is as in scsi-generic.c. */ | |
2651 | io_header->mx_sb_len = sizeof(r->req.sense); | |
2652 | io_header->sbp = r->req.sense; | |
2653 | io_header->timeout = UINT_MAX; | |
2654 | io_header->usr_ptr = r; | |
2655 | io_header->flags |= SG_FLAG_DIRECT_IO; | |
2656 | ||
2657 | aiocb = blk_aio_ioctl(s->qdev.conf.blk, SG_IO, io_header, cb, opaque); | |
2658 | assert(aiocb != NULL); | |
2659 | return aiocb; | |
2660 | } | |
2661 | ||
2662 | static bool scsi_block_no_fua(SCSICommand *cmd) | |
2663 | { | |
2664 | return false; | |
2665 | } | |
2666 | ||
2667 | static BlockAIOCB *scsi_block_dma_readv(int64_t offset, | |
2668 | QEMUIOVector *iov, | |
2669 | BlockCompletionFunc *cb, void *cb_opaque, | |
2670 | void *opaque) | |
2671 | { | |
2672 | SCSIBlockReq *r = opaque; | |
2673 | return scsi_block_do_sgio(r, offset, iov, | |
2674 | SG_DXFER_FROM_DEV, cb, cb_opaque); | |
2675 | } | |
2676 | ||
2677 | static BlockAIOCB *scsi_block_dma_writev(int64_t offset, | |
2678 | QEMUIOVector *iov, | |
2679 | BlockCompletionFunc *cb, void *cb_opaque, | |
2680 | void *opaque) | |
2681 | { | |
2682 | SCSIBlockReq *r = opaque; | |
2683 | return scsi_block_do_sgio(r, offset, iov, | |
2684 | SG_DXFER_TO_DEV, cb, cb_opaque); | |
2685 | } | |
2686 | ||
592c3b28 | 2687 | static bool scsi_block_is_passthrough(SCSIDiskState *s, uint8_t *buf) |
336a6915 | 2688 | { |
336a6915 | 2689 | switch (buf[0]) { |
8fdc7839 PB |
2690 | case VERIFY_10: |
2691 | case VERIFY_12: | |
2692 | case VERIFY_16: | |
2693 | /* Check if BYTCHK == 0x01 (data-out buffer contains data | |
2694 | * for the number of logical blocks specified in the length | |
2695 | * field). For other modes, do not use scatter/gather operation. | |
2696 | */ | |
2697 | if ((buf[1] & 6) != 2) { | |
2698 | return false; | |
2699 | } | |
2700 | break; | |
2701 | ||
336a6915 PB |
2702 | case READ_6: |
2703 | case READ_10: | |
2704 | case READ_12: | |
2705 | case READ_16: | |
2706 | case WRITE_6: | |
2707 | case WRITE_10: | |
2708 | case WRITE_12: | |
2709 | case WRITE_16: | |
2710 | case WRITE_VERIFY_10: | |
2711 | case WRITE_VERIFY_12: | |
2712 | case WRITE_VERIFY_16: | |
8fdc7839 | 2713 | /* MMC writing cannot be done via DMA helpers, because it sometimes |
33ebad12 | 2714 | * involves writing beyond the maximum LBA or to negative LBA (lead-in). |
b08d0ea0 | 2715 | * We might use scsi_disk_dma_reqops as long as no writing commands are |
33ebad12 PB |
2716 | * seen, but performance usually isn't paramount on optical media. So, |
2717 | * just make scsi-block operate the same as scsi-generic for them. | |
2718 | */ | |
b08d0ea0 | 2719 | if (s->qdev.type != TYPE_ROM) { |
592c3b28 | 2720 | return false; |
b08d0ea0 | 2721 | } |
592c3b28 PB |
2722 | break; |
2723 | ||
2724 | default: | |
2725 | break; | |
336a6915 PB |
2726 | } |
2727 | ||
592c3b28 PB |
2728 | return true; |
2729 | } | |
2730 | ||
2731 | ||
8fdc7839 PB |
2732 | static int32_t scsi_block_dma_command(SCSIRequest *req, uint8_t *buf) |
2733 | { | |
2734 | SCSIBlockReq *r = (SCSIBlockReq *)req; | |
2735 | r->cmd = req->cmd.buf[0]; | |
2736 | switch (r->cmd >> 5) { | |
2737 | case 0: | |
2738 | /* 6-byte CDB. */ | |
2739 | r->cdb1 = r->group_number = 0; | |
2740 | break; | |
2741 | case 1: | |
2742 | /* 10-byte CDB. */ | |
2743 | r->cdb1 = req->cmd.buf[1]; | |
2744 | r->group_number = req->cmd.buf[6]; | |
ed45cae3 | 2745 | break; |
8fdc7839 PB |
2746 | case 4: |
2747 | /* 12-byte CDB. */ | |
2748 | r->cdb1 = req->cmd.buf[1]; | |
2749 | r->group_number = req->cmd.buf[10]; | |
2750 | break; | |
2751 | case 5: | |
2752 | /* 16-byte CDB. */ | |
2753 | r->cdb1 = req->cmd.buf[1]; | |
2754 | r->group_number = req->cmd.buf[14]; | |
2755 | break; | |
2756 | default: | |
2757 | abort(); | |
2758 | } | |
2759 | ||
2760 | if (r->cdb1 & 0xe0) { | |
2761 | /* Protection information is not supported. */ | |
2762 | scsi_check_condition(&r->req, SENSE_CODE(INVALID_FIELD)); | |
2763 | return 0; | |
2764 | } | |
2765 | ||
2766 | r->req.status = &r->io_header.status; | |
2767 | return scsi_disk_dma_command(req, buf); | |
2768 | } | |
2769 | ||
2770 | static const SCSIReqOps scsi_block_dma_reqops = { | |
2771 | .size = sizeof(SCSIBlockReq), | |
2772 | .free_req = scsi_free_request, | |
2773 | .send_command = scsi_block_dma_command, | |
2774 | .read_data = scsi_read_data, | |
2775 | .write_data = scsi_write_data, | |
2776 | .get_buf = scsi_get_buf, | |
2777 | .load_request = scsi_disk_load_request, | |
2778 | .save_request = scsi_disk_save_request, | |
2779 | }; | |
2780 | ||
592c3b28 PB |
2781 | static SCSIRequest *scsi_block_new_request(SCSIDevice *d, uint32_t tag, |
2782 | uint32_t lun, uint8_t *buf, | |
2783 | void *hba_private) | |
2784 | { | |
2785 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, d); | |
2786 | ||
2787 | if (scsi_block_is_passthrough(s, buf)) { | |
2788 | return scsi_req_alloc(&scsi_generic_req_ops, &s->qdev, tag, lun, | |
2789 | hba_private); | |
2790 | } else { | |
8fdc7839 | 2791 | return scsi_req_alloc(&scsi_block_dma_reqops, &s->qdev, tag, lun, |
592c3b28 PB |
2792 | hba_private); |
2793 | } | |
336a6915 | 2794 | } |
3e7e180a PB |
2795 | |
2796 | static int scsi_block_parse_cdb(SCSIDevice *d, SCSICommand *cmd, | |
2797 | uint8_t *buf, void *hba_private) | |
2798 | { | |
2799 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, d); | |
2800 | ||
2801 | if (scsi_block_is_passthrough(s, buf)) { | |
2802 | return scsi_bus_parse_cdb(&s->qdev, cmd, buf, hba_private); | |
2803 | } else { | |
2804 | return scsi_req_parse_cdb(&s->qdev, cmd, buf); | |
2805 | } | |
2806 | } | |
2807 | ||
336a6915 PB |
2808 | #endif |
2809 | ||
fcaafb10 PB |
2810 | static |
2811 | BlockAIOCB *scsi_dma_readv(int64_t offset, QEMUIOVector *iov, | |
2812 | BlockCompletionFunc *cb, void *cb_opaque, | |
2813 | void *opaque) | |
2814 | { | |
2815 | SCSIDiskReq *r = opaque; | |
2816 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); | |
2817 | return blk_aio_preadv(s->qdev.conf.blk, offset, iov, 0, cb, cb_opaque); | |
2818 | } | |
2819 | ||
2820 | static | |
2821 | BlockAIOCB *scsi_dma_writev(int64_t offset, QEMUIOVector *iov, | |
2822 | BlockCompletionFunc *cb, void *cb_opaque, | |
2823 | void *opaque) | |
2824 | { | |
2825 | SCSIDiskReq *r = opaque; | |
2826 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); | |
2827 | return blk_aio_pwritev(s->qdev.conf.blk, offset, iov, 0, cb, cb_opaque); | |
2828 | } | |
2829 | ||
993935f3 PB |
2830 | static void scsi_disk_base_class_initfn(ObjectClass *klass, void *data) |
2831 | { | |
2832 | DeviceClass *dc = DEVICE_CLASS(klass); | |
fcaafb10 | 2833 | SCSIDiskClass *sdc = SCSI_DISK_BASE_CLASS(klass); |
993935f3 PB |
2834 | |
2835 | dc->fw_name = "disk"; | |
2836 | dc->reset = scsi_disk_reset; | |
fcaafb10 PB |
2837 | sdc->dma_readv = scsi_dma_readv; |
2838 | sdc->dma_writev = scsi_dma_writev; | |
94f8ba11 | 2839 | sdc->need_fua_emulation = scsi_is_cmd_fua; |
993935f3 PB |
2840 | } |
2841 | ||
2842 | static const TypeInfo scsi_disk_base_info = { | |
2843 | .name = TYPE_SCSI_DISK_BASE, | |
2844 | .parent = TYPE_SCSI_DEVICE, | |
2845 | .class_init = scsi_disk_base_class_initfn, | |
2846 | .instance_size = sizeof(SCSIDiskState), | |
fcaafb10 | 2847 | .class_size = sizeof(SCSIDiskClass), |
6214a11a | 2848 | .abstract = true, |
993935f3 PB |
2849 | }; |
2850 | ||
353815aa DF |
2851 | #define DEFINE_SCSI_DISK_PROPERTIES() \ |
2852 | DEFINE_BLOCK_PROPERTIES(SCSIDiskState, qdev.conf), \ | |
8c398252 | 2853 | DEFINE_BLOCK_ERROR_PROPERTIES(SCSIDiskState, qdev.conf), \ |
353815aa DF |
2854 | DEFINE_PROP_STRING("ver", SCSIDiskState, version), \ |
2855 | DEFINE_PROP_STRING("serial", SCSIDiskState, serial), \ | |
2856 | DEFINE_PROP_STRING("vendor", SCSIDiskState, vendor), \ | |
2857 | DEFINE_PROP_STRING("product", SCSIDiskState, product) | |
b443ae67 | 2858 | |
39bffca2 AL |
2859 | static Property scsi_hd_properties[] = { |
2860 | DEFINE_SCSI_DISK_PROPERTIES(), | |
bfe3d7ac PB |
2861 | DEFINE_PROP_BIT("removable", SCSIDiskState, features, |
2862 | SCSI_DISK_F_REMOVABLE, false), | |
da8365db PB |
2863 | DEFINE_PROP_BIT("dpofua", SCSIDiskState, features, |
2864 | SCSI_DISK_F_DPOFUA, false), | |
2ecab408 PB |
2865 | DEFINE_PROP_UINT64("wwn", SCSIDiskState, qdev.wwn, 0), |
2866 | DEFINE_PROP_UINT64("port_wwn", SCSIDiskState, qdev.port_wwn, 0), | |
64cc2284 | 2867 | DEFINE_PROP_UINT16("port_index", SCSIDiskState, port_index, 0), |
8a1bd297 PB |
2868 | DEFINE_PROP_UINT64("max_unmap_size", SCSIDiskState, max_unmap_size, |
2869 | DEFAULT_MAX_UNMAP_SIZE), | |
f8e1f533 PB |
2870 | DEFINE_PROP_UINT64("max_io_size", SCSIDiskState, max_io_size, |
2871 | DEFAULT_MAX_IO_SIZE), | |
d252df48 | 2872 | DEFINE_BLOCK_CHS_PROPERTIES(SCSIDiskState, qdev.conf), |
39bffca2 AL |
2873 | DEFINE_PROP_END_OF_LIST(), |
2874 | }; | |
2875 | ||
43b978b9 PB |
2876 | static const VMStateDescription vmstate_scsi_disk_state = { |
2877 | .name = "scsi-disk", | |
2878 | .version_id = 1, | |
2879 | .minimum_version_id = 1, | |
43b978b9 PB |
2880 | .fields = (VMStateField[]) { |
2881 | VMSTATE_SCSI_DEVICE(qdev, SCSIDiskState), | |
2882 | VMSTATE_BOOL(media_changed, SCSIDiskState), | |
2883 | VMSTATE_BOOL(media_event, SCSIDiskState), | |
2884 | VMSTATE_BOOL(eject_request, SCSIDiskState), | |
2885 | VMSTATE_BOOL(tray_open, SCSIDiskState), | |
2886 | VMSTATE_BOOL(tray_locked, SCSIDiskState), | |
2887 | VMSTATE_END_OF_LIST() | |
2888 | } | |
2889 | }; | |
2890 | ||
b9eea3e6 AL |
2891 | static void scsi_hd_class_initfn(ObjectClass *klass, void *data) |
2892 | { | |
39bffca2 | 2893 | DeviceClass *dc = DEVICE_CLASS(klass); |
b9eea3e6 AL |
2894 | SCSIDeviceClass *sc = SCSI_DEVICE_CLASS(klass); |
2895 | ||
a818a4b6 | 2896 | sc->realize = scsi_hd_realize; |
b9eea3e6 AL |
2897 | sc->alloc_req = scsi_new_request; |
2898 | sc->unit_attention_reported = scsi_disk_unit_attention_reported; | |
39bffca2 | 2899 | dc->desc = "virtual SCSI disk"; |
39bffca2 | 2900 | dc->props = scsi_hd_properties; |
43b978b9 | 2901 | dc->vmsd = &vmstate_scsi_disk_state; |
b9eea3e6 AL |
2902 | } |
2903 | ||
8c43a6f0 | 2904 | static const TypeInfo scsi_hd_info = { |
39bffca2 | 2905 | .name = "scsi-hd", |
993935f3 | 2906 | .parent = TYPE_SCSI_DISK_BASE, |
39bffca2 AL |
2907 | .class_init = scsi_hd_class_initfn, |
2908 | }; | |
2909 | ||
2910 | static Property scsi_cd_properties[] = { | |
2911 | DEFINE_SCSI_DISK_PROPERTIES(), | |
2ecab408 PB |
2912 | DEFINE_PROP_UINT64("wwn", SCSIDiskState, qdev.wwn, 0), |
2913 | DEFINE_PROP_UINT64("port_wwn", SCSIDiskState, qdev.port_wwn, 0), | |
64cc2284 | 2914 | DEFINE_PROP_UINT16("port_index", SCSIDiskState, port_index, 0), |
f8e1f533 PB |
2915 | DEFINE_PROP_UINT64("max_io_size", SCSIDiskState, max_io_size, |
2916 | DEFAULT_MAX_IO_SIZE), | |
39bffca2 | 2917 | DEFINE_PROP_END_OF_LIST(), |
b9eea3e6 AL |
2918 | }; |
2919 | ||
2920 | static void scsi_cd_class_initfn(ObjectClass *klass, void *data) | |
2921 | { | |
39bffca2 | 2922 | DeviceClass *dc = DEVICE_CLASS(klass); |
b9eea3e6 AL |
2923 | SCSIDeviceClass *sc = SCSI_DEVICE_CLASS(klass); |
2924 | ||
a818a4b6 | 2925 | sc->realize = scsi_cd_realize; |
b9eea3e6 AL |
2926 | sc->alloc_req = scsi_new_request; |
2927 | sc->unit_attention_reported = scsi_disk_unit_attention_reported; | |
39bffca2 | 2928 | dc->desc = "virtual SCSI CD-ROM"; |
39bffca2 | 2929 | dc->props = scsi_cd_properties; |
43b978b9 | 2930 | dc->vmsd = &vmstate_scsi_disk_state; |
b9eea3e6 AL |
2931 | } |
2932 | ||
8c43a6f0 | 2933 | static const TypeInfo scsi_cd_info = { |
39bffca2 | 2934 | .name = "scsi-cd", |
993935f3 | 2935 | .parent = TYPE_SCSI_DISK_BASE, |
39bffca2 | 2936 | .class_init = scsi_cd_class_initfn, |
b9eea3e6 AL |
2937 | }; |
2938 | ||
336a6915 | 2939 | #ifdef __linux__ |
39bffca2 | 2940 | static Property scsi_block_properties[] = { |
4be74634 | 2941 | DEFINE_PROP_DRIVE("drive", SCSIDiskState, qdev.conf.blk), |
39bffca2 AL |
2942 | DEFINE_PROP_END_OF_LIST(), |
2943 | }; | |
2944 | ||
b9eea3e6 AL |
2945 | static void scsi_block_class_initfn(ObjectClass *klass, void *data) |
2946 | { | |
39bffca2 | 2947 | DeviceClass *dc = DEVICE_CLASS(klass); |
b9eea3e6 | 2948 | SCSIDeviceClass *sc = SCSI_DEVICE_CLASS(klass); |
8fdc7839 | 2949 | SCSIDiskClass *sdc = SCSI_DISK_BASE_CLASS(klass); |
b9eea3e6 | 2950 | |
a818a4b6 | 2951 | sc->realize = scsi_block_realize; |
b9eea3e6 | 2952 | sc->alloc_req = scsi_block_new_request; |
3e7e180a | 2953 | sc->parse_cdb = scsi_block_parse_cdb; |
8fdc7839 PB |
2954 | sdc->dma_readv = scsi_block_dma_readv; |
2955 | sdc->dma_writev = scsi_block_dma_writev; | |
2956 | sdc->need_fua_emulation = scsi_block_no_fua; | |
39bffca2 | 2957 | dc->desc = "SCSI block device passthrough"; |
39bffca2 | 2958 | dc->props = scsi_block_properties; |
43b978b9 | 2959 | dc->vmsd = &vmstate_scsi_disk_state; |
b9eea3e6 AL |
2960 | } |
2961 | ||
8c43a6f0 | 2962 | static const TypeInfo scsi_block_info = { |
39bffca2 | 2963 | .name = "scsi-block", |
993935f3 | 2964 | .parent = TYPE_SCSI_DISK_BASE, |
39bffca2 | 2965 | .class_init = scsi_block_class_initfn, |
b9eea3e6 | 2966 | }; |
336a6915 | 2967 | #endif |
b9eea3e6 | 2968 | |
39bffca2 AL |
2969 | static Property scsi_disk_properties[] = { |
2970 | DEFINE_SCSI_DISK_PROPERTIES(), | |
bfe3d7ac PB |
2971 | DEFINE_PROP_BIT("removable", SCSIDiskState, features, |
2972 | SCSI_DISK_F_REMOVABLE, false), | |
da8365db PB |
2973 | DEFINE_PROP_BIT("dpofua", SCSIDiskState, features, |
2974 | SCSI_DISK_F_DPOFUA, false), | |
2ecab408 PB |
2975 | DEFINE_PROP_UINT64("wwn", SCSIDiskState, qdev.wwn, 0), |
2976 | DEFINE_PROP_UINT64("port_wwn", SCSIDiskState, qdev.port_wwn, 0), | |
64cc2284 | 2977 | DEFINE_PROP_UINT16("port_index", SCSIDiskState, port_index, 0), |
8a1bd297 PB |
2978 | DEFINE_PROP_UINT64("max_unmap_size", SCSIDiskState, max_unmap_size, |
2979 | DEFAULT_MAX_UNMAP_SIZE), | |
f8e1f533 PB |
2980 | DEFINE_PROP_UINT64("max_io_size", SCSIDiskState, max_io_size, |
2981 | DEFAULT_MAX_IO_SIZE), | |
39bffca2 AL |
2982 | DEFINE_PROP_END_OF_LIST(), |
2983 | }; | |
2984 | ||
b9eea3e6 AL |
2985 | static void scsi_disk_class_initfn(ObjectClass *klass, void *data) |
2986 | { | |
39bffca2 | 2987 | DeviceClass *dc = DEVICE_CLASS(klass); |
b9eea3e6 AL |
2988 | SCSIDeviceClass *sc = SCSI_DEVICE_CLASS(klass); |
2989 | ||
a818a4b6 | 2990 | sc->realize = scsi_disk_realize; |
b9eea3e6 AL |
2991 | sc->alloc_req = scsi_new_request; |
2992 | sc->unit_attention_reported = scsi_disk_unit_attention_reported; | |
39bffca2 AL |
2993 | dc->fw_name = "disk"; |
2994 | dc->desc = "virtual SCSI disk or CD-ROM (legacy)"; | |
2995 | dc->reset = scsi_disk_reset; | |
2996 | dc->props = scsi_disk_properties; | |
43b978b9 | 2997 | dc->vmsd = &vmstate_scsi_disk_state; |
b9eea3e6 AL |
2998 | } |
2999 | ||
8c43a6f0 | 3000 | static const TypeInfo scsi_disk_info = { |
39bffca2 | 3001 | .name = "scsi-disk", |
993935f3 | 3002 | .parent = TYPE_SCSI_DISK_BASE, |
39bffca2 | 3003 | .class_init = scsi_disk_class_initfn, |
d52affa7 GH |
3004 | }; |
3005 | ||
83f7d43a | 3006 | static void scsi_disk_register_types(void) |
d52affa7 | 3007 | { |
993935f3 | 3008 | type_register_static(&scsi_disk_base_info); |
39bffca2 AL |
3009 | type_register_static(&scsi_hd_info); |
3010 | type_register_static(&scsi_cd_info); | |
b9eea3e6 | 3011 | #ifdef __linux__ |
39bffca2 | 3012 | type_register_static(&scsi_block_info); |
b9eea3e6 | 3013 | #endif |
39bffca2 | 3014 | type_register_static(&scsi_disk_info); |
8ccc2ace | 3015 | } |
83f7d43a AF |
3016 | |
3017 | type_init(scsi_disk_register_types) |