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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 | ||
a4ab4792 | 22 | #include "qemu/osdep.h" |
7e462605 | 23 | #include "qemu/units.h" |
da34e65c | 24 | #include "qapi/error.h" |
1de7afc9 | 25 | #include "qemu/error-report.h" |
0d09e41a | 26 | #include "hw/scsi/scsi.h" |
3d4a8bf0 | 27 | #include "hw/scsi/emulation.h" |
08e2c9f1 | 28 | #include "scsi/constants.h" |
9c17d615 | 29 | #include "sysemu/sysemu.h" |
4be74634 | 30 | #include "sysemu/block-backend.h" |
9c17d615 | 31 | #include "sysemu/blockdev.h" |
0d09e41a | 32 | #include "hw/block/block.h" |
9c17d615 | 33 | #include "sysemu/dma.h" |
f348b6d1 | 34 | #include "qemu/cutils.h" |
59ee9500 | 35 | #include "trace.h" |
22864256 | 36 | |
336a6915 PB |
37 | #ifdef __linux |
38 | #include <scsi/sg.h> | |
39 | #endif | |
40 | ||
7e462605 PMD |
41 | #define SCSI_WRITE_SAME_MAX (512 * KiB) |
42 | #define SCSI_DMA_BUF_SIZE (128 * KiB) | |
215e47b9 PB |
43 | #define SCSI_MAX_INQUIRY_LEN 256 |
44 | #define SCSI_MAX_MODE_LEN 256 | |
45 | ||
7e462605 PMD |
46 | #define DEFAULT_DISCARD_GRANULARITY (4 * KiB) |
47 | #define DEFAULT_MAX_UNMAP_SIZE (1 * GiB) | |
f8e1f533 | 48 | #define DEFAULT_MAX_IO_SIZE INT_MAX /* 2 GB - 1 block */ |
a917d384 | 49 | |
993935f3 PB |
50 | #define TYPE_SCSI_DISK_BASE "scsi-disk-base" |
51 | ||
fcaafb10 PB |
52 | #define SCSI_DISK_BASE(obj) \ |
53 | OBJECT_CHECK(SCSIDiskState, (obj), TYPE_SCSI_DISK_BASE) | |
54 | #define SCSI_DISK_BASE_CLASS(klass) \ | |
55 | OBJECT_CLASS_CHECK(SCSIDiskClass, (klass), TYPE_SCSI_DISK_BASE) | |
56 | #define SCSI_DISK_BASE_GET_CLASS(obj) \ | |
57 | OBJECT_GET_CLASS(SCSIDiskClass, (obj), TYPE_SCSI_DISK_BASE) | |
58 | ||
59 | typedef struct SCSIDiskClass { | |
60 | SCSIDeviceClass parent_class; | |
61 | DMAIOFunc *dma_readv; | |
62 | DMAIOFunc *dma_writev; | |
94f8ba11 | 63 | bool (*need_fua_emulation)(SCSICommand *cmd); |
fcaafb10 | 64 | } SCSIDiskClass; |
d52affa7 | 65 | |
4c41d2ef GH |
66 | typedef struct SCSIDiskReq { |
67 | SCSIRequest req; | |
a917d384 | 68 | /* Both sector and sector_count are in terms of qemu 512 byte blocks. */ |
e035b43d AL |
69 | uint64_t sector; |
70 | uint32_t sector_count; | |
7285477a | 71 | uint32_t buflen; |
a0e66a69 | 72 | bool started; |
94f8ba11 | 73 | bool need_fua_emulation; |
c87c0672 AL |
74 | struct iovec iov; |
75 | QEMUIOVector qiov; | |
a597e79c | 76 | BlockAcctCookie acct; |
8fdc7839 | 77 | unsigned char *status; |
4c41d2ef | 78 | } SCSIDiskReq; |
a917d384 | 79 | |
18e673b8 PH |
80 | #define SCSI_DISK_F_REMOVABLE 0 |
81 | #define SCSI_DISK_F_DPOFUA 1 | |
82 | #define SCSI_DISK_F_NO_REMOVABLE_DEVOPS 2 | |
bfe3d7ac | 83 | |
fcaafb10 | 84 | typedef struct SCSIDiskState |
a917d384 | 85 | { |
d52affa7 | 86 | SCSIDevice qdev; |
bfe3d7ac | 87 | uint32_t features; |
8a9c16f6 | 88 | bool media_changed; |
3c2f7c12 | 89 | bool media_event; |
4480de19 | 90 | bool eject_request; |
64cc2284 | 91 | uint16_t port_index; |
8a1bd297 | 92 | uint64_t max_unmap_size; |
f8e1f533 | 93 | uint64_t max_io_size; |
213189ab | 94 | QEMUBH *bh; |
383b4d9b | 95 | char *version; |
a0fef654 | 96 | char *serial; |
353815aa DF |
97 | char *vendor; |
98 | char *product; | |
7471a649 | 99 | char *device_id; |
ece0d5e9 | 100 | bool tray_open; |
81b1008d | 101 | bool tray_locked; |
070f8009 DB |
102 | /* |
103 | * 0x0000 - rotation rate not reported | |
104 | * 0x0001 - non-rotating medium (SSD) | |
105 | * 0x0002-0x0400 - reserved | |
106 | * 0x0401-0xffe - rotations per minute | |
107 | * 0xffff - reserved | |
108 | */ | |
109 | uint16_t rotation_rate; | |
fcaafb10 | 110 | } SCSIDiskState; |
2e5d83bb | 111 | |
14b20748 | 112 | static bool scsi_handle_rw_error(SCSIDiskReq *r, int error, bool acct_failed); |
5dba48a8 | 113 | |
ad2d30f7 | 114 | static void scsi_free_request(SCSIRequest *req) |
4d611c9a | 115 | { |
ad2d30f7 PB |
116 | SCSIDiskReq *r = DO_UPCAST(SCSIDiskReq, req, req); |
117 | ||
db4c34c3 | 118 | qemu_vfree(r->iov.iov_base); |
4d611c9a PB |
119 | } |
120 | ||
b45ef674 PB |
121 | /* Helper function for command completion with sense. */ |
122 | static void scsi_check_condition(SCSIDiskReq *r, SCSISense sense) | |
ed3a34a3 | 123 | { |
59ee9500 LV |
124 | trace_scsi_disk_check_condition(r->req.tag, sense.key, sense.asc, |
125 | sense.ascq); | |
b45ef674 PB |
126 | scsi_req_build_sense(&r->req, sense); |
127 | scsi_req_complete(&r->req, CHECK_CONDITION); | |
4d611c9a PB |
128 | } |
129 | ||
03c90063 | 130 | static void scsi_init_iovec(SCSIDiskReq *r, size_t size) |
103b40f5 | 131 | { |
7285477a PB |
132 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); |
133 | ||
134 | if (!r->iov.iov_base) { | |
43b978b9 | 135 | r->buflen = size; |
4be74634 | 136 | r->iov.iov_base = blk_blockalign(s->qdev.conf.blk, r->buflen); |
7285477a PB |
137 | } |
138 | r->iov.iov_len = MIN(r->sector_count * 512, r->buflen); | |
103b40f5 | 139 | qemu_iovec_init_external(&r->qiov, &r->iov, 1); |
103b40f5 PB |
140 | } |
141 | ||
43b978b9 PB |
142 | static void scsi_disk_save_request(QEMUFile *f, SCSIRequest *req) |
143 | { | |
144 | SCSIDiskReq *r = DO_UPCAST(SCSIDiskReq, req, req); | |
145 | ||
146 | qemu_put_be64s(f, &r->sector); | |
147 | qemu_put_be32s(f, &r->sector_count); | |
148 | qemu_put_be32s(f, &r->buflen); | |
18eef3bc GH |
149 | if (r->buflen) { |
150 | if (r->req.cmd.mode == SCSI_XFER_TO_DEV) { | |
151 | qemu_put_buffer(f, r->iov.iov_base, r->iov.iov_len); | |
152 | } else if (!req->retry) { | |
153 | uint32_t len = r->iov.iov_len; | |
154 | qemu_put_be32s(f, &len); | |
155 | qemu_put_buffer(f, r->iov.iov_base, r->iov.iov_len); | |
156 | } | |
43b978b9 PB |
157 | } |
158 | } | |
159 | ||
160 | static void scsi_disk_load_request(QEMUFile *f, SCSIRequest *req) | |
161 | { | |
162 | SCSIDiskReq *r = DO_UPCAST(SCSIDiskReq, req, req); | |
163 | ||
164 | qemu_get_be64s(f, &r->sector); | |
165 | qemu_get_be32s(f, &r->sector_count); | |
166 | qemu_get_be32s(f, &r->buflen); | |
167 | if (r->buflen) { | |
168 | scsi_init_iovec(r, r->buflen); | |
169 | if (r->req.cmd.mode == SCSI_XFER_TO_DEV) { | |
170 | qemu_get_buffer(f, r->iov.iov_base, r->iov.iov_len); | |
18eef3bc GH |
171 | } else if (!r->req.retry) { |
172 | uint32_t len; | |
173 | qemu_get_be32s(f, &len); | |
174 | r->iov.iov_len = len; | |
175 | assert(r->iov.iov_len <= r->buflen); | |
176 | qemu_get_buffer(f, r->iov.iov_base, r->iov.iov_len); | |
43b978b9 PB |
177 | } |
178 | } | |
179 | ||
180 | qemu_iovec_init_external(&r->qiov, &r->iov, 1); | |
181 | } | |
182 | ||
5b956f41 PB |
183 | static bool scsi_disk_req_check_error(SCSIDiskReq *r, int ret, bool acct_failed) |
184 | { | |
185 | if (r->req.io_canceled) { | |
186 | scsi_req_cancel_complete(&r->req); | |
187 | return true; | |
188 | } | |
189 | ||
14b20748 | 190 | if (ret < 0 || (r->status && *r->status)) { |
5b956f41 PB |
191 | return scsi_handle_rw_error(r, -ret, acct_failed); |
192 | } | |
193 | ||
194 | return false; | |
195 | } | |
196 | ||
c1b35247 | 197 | static void scsi_aio_complete(void *opaque, int ret) |
5d0d2467 PB |
198 | { |
199 | SCSIDiskReq *r = (SCSIDiskReq *)opaque; | |
200 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); | |
201 | ||
46e3f30e PB |
202 | assert(r->req.aiocb != NULL); |
203 | r->req.aiocb = NULL; | |
b9e413dd | 204 | aio_context_acquire(blk_get_aio_context(s->qdev.conf.blk)); |
5b956f41 | 205 | if (scsi_disk_req_check_error(r, ret, true)) { |
0c92e0e6 PB |
206 | goto done; |
207 | } | |
5d0d2467 | 208 | |
d7628080 | 209 | block_acct_done(blk_get_stats(s->qdev.conf.blk), &r->acct); |
5d0d2467 PB |
210 | scsi_req_complete(&r->req, GOOD); |
211 | ||
212 | done: | |
b9e413dd | 213 | aio_context_release(blk_get_aio_context(s->qdev.conf.blk)); |
3df9caf8 | 214 | scsi_req_unref(&r->req); |
5d0d2467 PB |
215 | } |
216 | ||
7e8c49c5 PB |
217 | static bool scsi_is_cmd_fua(SCSICommand *cmd) |
218 | { | |
219 | switch (cmd->buf[0]) { | |
220 | case READ_10: | |
221 | case READ_12: | |
222 | case READ_16: | |
223 | case WRITE_10: | |
224 | case WRITE_12: | |
225 | case WRITE_16: | |
226 | return (cmd->buf[1] & 8) != 0; | |
227 | ||
7f64f8e2 PB |
228 | case VERIFY_10: |
229 | case VERIFY_12: | |
230 | case VERIFY_16: | |
7e8c49c5 PB |
231 | case WRITE_VERIFY_10: |
232 | case WRITE_VERIFY_12: | |
233 | case WRITE_VERIFY_16: | |
234 | return true; | |
235 | ||
236 | case READ_6: | |
237 | case WRITE_6: | |
238 | default: | |
239 | return false; | |
240 | } | |
241 | } | |
242 | ||
243 | static void scsi_write_do_fua(SCSIDiskReq *r) | |
244 | { | |
245 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); | |
246 | ||
5fd2b563 | 247 | assert(r->req.aiocb == NULL); |
5b956f41 | 248 | assert(!r->req.io_canceled); |
0c92e0e6 | 249 | |
94f8ba11 | 250 | if (r->need_fua_emulation) { |
4be74634 | 251 | block_acct_start(blk_get_stats(s->qdev.conf.blk), &r->acct, 0, |
5366d0c8 | 252 | BLOCK_ACCT_FLUSH); |
4be74634 | 253 | r->req.aiocb = blk_aio_flush(s->qdev.conf.blk, scsi_aio_complete, r); |
7e8c49c5 PB |
254 | return; |
255 | } | |
256 | ||
257 | scsi_req_complete(&r->req, GOOD); | |
3df9caf8 | 258 | scsi_req_unref(&r->req); |
7e8c49c5 PB |
259 | } |
260 | ||
5fd2b563 | 261 | static void scsi_dma_complete_noio(SCSIDiskReq *r, int ret) |
a917d384 | 262 | { |
5fd2b563 | 263 | assert(r->req.aiocb == NULL); |
5b956f41 | 264 | if (scsi_disk_req_check_error(r, ret, false)) { |
0c92e0e6 PB |
265 | goto done; |
266 | } | |
a597e79c | 267 | |
b77912a7 PB |
268 | r->sector += r->sector_count; |
269 | r->sector_count = 0; | |
7e8c49c5 PB |
270 | if (r->req.cmd.mode == SCSI_XFER_TO_DEV) { |
271 | scsi_write_do_fua(r); | |
272 | return; | |
273 | } else { | |
274 | scsi_req_complete(&r->req, GOOD); | |
275 | } | |
c7bae6a7 PB |
276 | |
277 | done: | |
3df9caf8 | 278 | scsi_req_unref(&r->req); |
4d611c9a PB |
279 | } |
280 | ||
ef8489d4 PB |
281 | static void scsi_dma_complete(void *opaque, int ret) |
282 | { | |
283 | SCSIDiskReq *r = (SCSIDiskReq *)opaque; | |
5fd2b563 | 284 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); |
ef8489d4 PB |
285 | |
286 | assert(r->req.aiocb != NULL); | |
5fd2b563 PB |
287 | r->req.aiocb = NULL; |
288 | ||
b9e413dd | 289 | aio_context_acquire(blk_get_aio_context(s->qdev.conf.blk)); |
d7628080 AG |
290 | if (ret < 0) { |
291 | block_acct_failed(blk_get_stats(s->qdev.conf.blk), &r->acct); | |
292 | } else { | |
293 | block_acct_done(blk_get_stats(s->qdev.conf.blk), &r->acct); | |
294 | } | |
5fd2b563 | 295 | scsi_dma_complete_noio(r, ret); |
b9e413dd | 296 | aio_context_release(blk_get_aio_context(s->qdev.conf.blk)); |
ef8489d4 PB |
297 | } |
298 | ||
1505421a | 299 | static void scsi_read_complete_noio(SCSIDiskReq *r, int ret) |
0a4ac106 | 300 | { |
1505421a | 301 | uint32_t n; |
0a4ac106 | 302 | |
1505421a ZL |
303 | assert(r->req.aiocb == NULL); |
304 | if (scsi_disk_req_check_error(r, ret, false)) { | |
0c92e0e6 PB |
305 | goto done; |
306 | } | |
0a4ac106 | 307 | |
b77912a7 PB |
308 | n = r->qiov.size / 512; |
309 | r->sector += n; | |
310 | r->sector_count -= n; | |
311 | scsi_req_data(&r->req, r->qiov.size); | |
c7bae6a7 PB |
312 | |
313 | done: | |
3df9caf8 | 314 | scsi_req_unref(&r->req); |
1505421a ZL |
315 | } |
316 | ||
317 | static void scsi_read_complete(void *opaque, int ret) | |
318 | { | |
319 | SCSIDiskReq *r = (SCSIDiskReq *)opaque; | |
320 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); | |
321 | ||
322 | assert(r->req.aiocb != NULL); | |
323 | r->req.aiocb = NULL; | |
324 | ||
325 | aio_context_acquire(blk_get_aio_context(s->qdev.conf.blk)); | |
326 | if (ret < 0) { | |
327 | block_acct_failed(blk_get_stats(s->qdev.conf.blk), &r->acct); | |
328 | } else { | |
329 | block_acct_done(blk_get_stats(s->qdev.conf.blk), &r->acct); | |
330 | trace_scsi_disk_read_complete(r->req.tag, r->qiov.size); | |
331 | } | |
332 | scsi_read_complete_noio(r, ret); | |
b9e413dd | 333 | aio_context_release(blk_get_aio_context(s->qdev.conf.blk)); |
0a4ac106 | 334 | } |
5dba48a8 | 335 | |
ac668426 | 336 | /* Actually issue a read to the block device. */ |
5fd2b563 | 337 | static void scsi_do_read(SCSIDiskReq *r, int ret) |
ac668426 | 338 | { |
ac668426 | 339 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); |
fcaafb10 | 340 | SCSIDiskClass *sdc = (SCSIDiskClass *) object_get_class(OBJECT(s)); |
ac668426 | 341 | |
5fd2b563 | 342 | assert (r->req.aiocb == NULL); |
5b956f41 | 343 | if (scsi_disk_req_check_error(r, ret, false)) { |
0c92e0e6 PB |
344 | goto done; |
345 | } | |
ac668426 | 346 | |
31e8fd86 PB |
347 | /* The request is used as the AIO opaque value, so add a ref. */ |
348 | scsi_req_ref(&r->req); | |
349 | ||
ac668426 | 350 | if (r->req.sg) { |
4be74634 | 351 | dma_acct_start(s->qdev.conf.blk, &r->acct, r->req.sg, BLOCK_ACCT_READ); |
ac668426 | 352 | r->req.resid -= r->req.sg->size; |
fcaafb10 PB |
353 | r->req.aiocb = dma_blk_io(blk_get_aio_context(s->qdev.conf.blk), |
354 | r->req.sg, r->sector << BDRV_SECTOR_BITS, | |
99868af3 | 355 | BDRV_SECTOR_SIZE, |
fcaafb10 PB |
356 | sdc->dma_readv, r, scsi_dma_complete, r, |
357 | DMA_DIRECTION_FROM_DEVICE); | |
ac668426 | 358 | } else { |
03c90063 | 359 | scsi_init_iovec(r, SCSI_DMA_BUF_SIZE); |
4be74634 | 360 | block_acct_start(blk_get_stats(s->qdev.conf.blk), &r->acct, |
03c90063 | 361 | r->qiov.size, BLOCK_ACCT_READ); |
890e48d7 | 362 | r->req.aiocb = sdc->dma_readv(r->sector << BDRV_SECTOR_BITS, &r->qiov, |
fcaafb10 | 363 | scsi_read_complete, r, r); |
ac668426 PB |
364 | } |
365 | ||
366 | done: | |
3df9caf8 | 367 | scsi_req_unref(&r->req); |
ac668426 PB |
368 | } |
369 | ||
5fd2b563 PB |
370 | static void scsi_do_read_cb(void *opaque, int ret) |
371 | { | |
372 | SCSIDiskReq *r = (SCSIDiskReq *)opaque; | |
373 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); | |
374 | ||
375 | assert (r->req.aiocb != NULL); | |
376 | r->req.aiocb = NULL; | |
377 | ||
b9e413dd | 378 | aio_context_acquire(blk_get_aio_context(s->qdev.conf.blk)); |
d7628080 AG |
379 | if (ret < 0) { |
380 | block_acct_failed(blk_get_stats(s->qdev.conf.blk), &r->acct); | |
381 | } else { | |
382 | block_acct_done(blk_get_stats(s->qdev.conf.blk), &r->acct); | |
383 | } | |
5fd2b563 | 384 | scsi_do_read(opaque, ret); |
b9e413dd | 385 | aio_context_release(blk_get_aio_context(s->qdev.conf.blk)); |
5fd2b563 PB |
386 | } |
387 | ||
5c6c0e51 HR |
388 | /* Read more data from scsi device into buffer. */ |
389 | static void scsi_read_data(SCSIRequest *req) | |
2e5d83bb | 390 | { |
5c6c0e51 | 391 | SCSIDiskReq *r = DO_UPCAST(SCSIDiskReq, req, req); |
5dba48a8 | 392 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); |
ac668426 | 393 | bool first; |
2e5d83bb | 394 | |
59ee9500 | 395 | trace_scsi_disk_read_data_count(r->sector_count); |
a917d384 | 396 | if (r->sector_count == 0) { |
b45ef674 PB |
397 | /* This also clears the sense buffer for REQUEST SENSE. */ |
398 | scsi_req_complete(&r->req, GOOD); | |
a917d384 | 399 | return; |
2e5d83bb PB |
400 | } |
401 | ||
6fa2c95f SH |
402 | /* No data transfer may already be in progress */ |
403 | assert(r->req.aiocb == NULL); | |
404 | ||
c7bae6a7 PB |
405 | /* The request is used as the AIO opaque value, so add a ref. */ |
406 | scsi_req_ref(&r->req); | |
efb9ee02 | 407 | if (r->req.cmd.mode == SCSI_XFER_TO_DEV) { |
59ee9500 | 408 | trace_scsi_disk_read_data_invalid(); |
1505421a | 409 | scsi_read_complete_noio(r, -EINVAL); |
efb9ee02 HR |
410 | return; |
411 | } | |
412 | ||
cd723b85 | 413 | if (!blk_is_available(req->dev->conf.blk)) { |
1505421a | 414 | scsi_read_complete_noio(r, -ENOMEDIUM); |
c7bae6a7 | 415 | return; |
a1aff5bf | 416 | } |
c7bae6a7 | 417 | |
ac668426 | 418 | first = !r->started; |
a0e66a69 | 419 | r->started = true; |
94f8ba11 | 420 | if (first && r->need_fua_emulation) { |
4be74634 | 421 | block_acct_start(blk_get_stats(s->qdev.conf.blk), &r->acct, 0, |
5366d0c8 | 422 | BLOCK_ACCT_FLUSH); |
5fd2b563 | 423 | r->req.aiocb = blk_aio_flush(s->qdev.conf.blk, scsi_do_read_cb, r); |
5d0d2467 | 424 | } else { |
ac668426 | 425 | scsi_do_read(r, 0); |
5d0d2467 | 426 | } |
2e5d83bb PB |
427 | } |
428 | ||
c7bae6a7 | 429 | /* |
14b20748 FZ |
430 | * scsi_handle_rw_error has two return values. False means that the error |
431 | * must be ignored, true means that the error has been processed and the | |
c7bae6a7 PB |
432 | * caller should not do anything else for this request. Note that |
433 | * scsi_handle_rw_error always manages its reference counts, independent | |
434 | * of the return value. | |
435 | */ | |
14b20748 | 436 | static bool scsi_handle_rw_error(SCSIDiskReq *r, int error, bool acct_failed) |
5dba48a8 | 437 | { |
c85a7a00 | 438 | bool is_read = (r->req.cmd.mode == SCSI_XFER_FROM_DEV); |
4c41d2ef | 439 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); |
4be74634 MA |
440 | BlockErrorAction action = blk_get_error_action(s->qdev.conf.blk, |
441 | is_read, error); | |
ea8a5d7f | 442 | |
a589569f | 443 | if (action == BLOCK_ERROR_ACTION_REPORT) { |
d7628080 AG |
444 | if (acct_failed) { |
445 | block_acct_failed(blk_get_stats(s->qdev.conf.blk), &r->acct); | |
446 | } | |
efb9ee02 | 447 | switch (error) { |
14b20748 | 448 | case 0: |
e6aa5ba4 PB |
449 | /* A passthrough command has run and has produced sense data; check |
450 | * whether the error has to be handled by the guest or should rather | |
451 | * pause the host. | |
452 | */ | |
14b20748 | 453 | assert(r->status && *r->status); |
e6aa5ba4 PB |
454 | error = scsi_sense_buf_to_errno(r->req.sense, sizeof(r->req.sense)); |
455 | if (error == ECANCELED || error == EAGAIN || error == ENOTCONN || | |
456 | error == 0) { | |
457 | /* These errors are handled by guest. */ | |
458 | scsi_req_complete(&r->req, *r->status); | |
459 | return true; | |
460 | } | |
14b20748 | 461 | break; |
7e218df5 PB |
462 | case ENOMEDIUM: |
463 | scsi_check_condition(r, SENSE_CODE(NO_MEDIUM)); | |
464 | break; | |
efb9ee02 | 465 | case ENOMEM: |
b45ef674 | 466 | scsi_check_condition(r, SENSE_CODE(TARGET_FAILURE)); |
efb9ee02 HR |
467 | break; |
468 | case EINVAL: | |
b45ef674 | 469 | scsi_check_condition(r, SENSE_CODE(INVALID_FIELD)); |
efb9ee02 | 470 | break; |
703dd81a PB |
471 | case ENOSPC: |
472 | scsi_check_condition(r, SENSE_CODE(SPACE_ALLOC_FAILED)); | |
473 | break; | |
efb9ee02 | 474 | default: |
b45ef674 | 475 | scsi_check_condition(r, SENSE_CODE(IO_ERROR)); |
efb9ee02 | 476 | break; |
a1f0cce2 | 477 | } |
ea8a5d7f | 478 | } |
14b20748 | 479 | |
4be74634 | 480 | blk_error_action(s->qdev.conf.blk, action, is_read, error); |
40dce4ee PB |
481 | if (action == BLOCK_ERROR_ACTION_IGNORE) { |
482 | scsi_req_complete(&r->req, 0); | |
483 | return true; | |
484 | } | |
485 | ||
a589569f | 486 | if (action == BLOCK_ERROR_ACTION_STOP) { |
3e1caa5f PB |
487 | scsi_req_retry(&r->req); |
488 | } | |
1c7f618f | 489 | return true; |
ea8a5d7f AL |
490 | } |
491 | ||
5fd2b563 | 492 | static void scsi_write_complete_noio(SCSIDiskReq *r, int ret) |
4d611c9a | 493 | { |
ea8a5d7f AL |
494 | uint32_t n; |
495 | ||
5fd2b563 | 496 | assert (r->req.aiocb == NULL); |
5b956f41 | 497 | if (scsi_disk_req_check_error(r, ret, false)) { |
0c92e0e6 PB |
498 | goto done; |
499 | } | |
a597e79c | 500 | |
103b40f5 | 501 | n = r->qiov.size / 512; |
ea8a5d7f AL |
502 | r->sector += n; |
503 | r->sector_count -= n; | |
a917d384 | 504 | if (r->sector_count == 0) { |
7e8c49c5 PB |
505 | scsi_write_do_fua(r); |
506 | return; | |
a917d384 | 507 | } else { |
43b978b9 | 508 | scsi_init_iovec(r, SCSI_DMA_BUF_SIZE); |
59ee9500 | 509 | trace_scsi_disk_write_complete_noio(r->req.tag, r->qiov.size); |
103b40f5 | 510 | scsi_req_data(&r->req, r->qiov.size); |
4d611c9a | 511 | } |
c7bae6a7 PB |
512 | |
513 | done: | |
3df9caf8 | 514 | scsi_req_unref(&r->req); |
4d611c9a PB |
515 | } |
516 | ||
5fd2b563 PB |
517 | static void scsi_write_complete(void * opaque, int ret) |
518 | { | |
519 | SCSIDiskReq *r = (SCSIDiskReq *)opaque; | |
520 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); | |
521 | ||
522 | assert (r->req.aiocb != NULL); | |
523 | r->req.aiocb = NULL; | |
524 | ||
b9e413dd | 525 | aio_context_acquire(blk_get_aio_context(s->qdev.conf.blk)); |
d7628080 AG |
526 | if (ret < 0) { |
527 | block_acct_failed(blk_get_stats(s->qdev.conf.blk), &r->acct); | |
528 | } else { | |
529 | block_acct_done(blk_get_stats(s->qdev.conf.blk), &r->acct); | |
530 | } | |
5fd2b563 | 531 | scsi_write_complete_noio(r, ret); |
b9e413dd | 532 | aio_context_release(blk_get_aio_context(s->qdev.conf.blk)); |
5fd2b563 PB |
533 | } |
534 | ||
42741212 | 535 | static void scsi_write_data(SCSIRequest *req) |
ea8a5d7f | 536 | { |
5c6c0e51 | 537 | SCSIDiskReq *r = DO_UPCAST(SCSIDiskReq, req, req); |
4c41d2ef | 538 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); |
fcaafb10 | 539 | SCSIDiskClass *sdc = (SCSIDiskClass *) object_get_class(OBJECT(s)); |
ea8a5d7f | 540 | |
6fa2c95f SH |
541 | /* No data transfer may already be in progress */ |
542 | assert(r->req.aiocb == NULL); | |
543 | ||
c7bae6a7 PB |
544 | /* The request is used as the AIO opaque value, so add a ref. */ |
545 | scsi_req_ref(&r->req); | |
efb9ee02 | 546 | if (r->req.cmd.mode != SCSI_XFER_TO_DEV) { |
59ee9500 | 547 | trace_scsi_disk_write_data_invalid(); |
5fd2b563 | 548 | scsi_write_complete_noio(r, -EINVAL); |
42741212 | 549 | return; |
efb9ee02 HR |
550 | } |
551 | ||
5d0d2467 PB |
552 | if (!r->req.sg && !r->qiov.size) { |
553 | /* Called for the first time. Ask the driver to send us more data. */ | |
a0e66a69 | 554 | r->started = true; |
5fd2b563 | 555 | scsi_write_complete_noio(r, 0); |
5d0d2467 PB |
556 | return; |
557 | } | |
cd723b85 | 558 | if (!blk_is_available(req->dev->conf.blk)) { |
5fd2b563 | 559 | scsi_write_complete_noio(r, -ENOMEDIUM); |
5d0d2467 PB |
560 | return; |
561 | } | |
562 | ||
7f64f8e2 PB |
563 | if (r->req.cmd.buf[0] == VERIFY_10 || r->req.cmd.buf[0] == VERIFY_12 || |
564 | r->req.cmd.buf[0] == VERIFY_16) { | |
565 | if (r->req.sg) { | |
ef8489d4 | 566 | scsi_dma_complete_noio(r, 0); |
7f64f8e2 | 567 | } else { |
5fd2b563 | 568 | scsi_write_complete_noio(r, 0); |
7f64f8e2 PB |
569 | } |
570 | return; | |
571 | } | |
572 | ||
5d0d2467 | 573 | if (r->req.sg) { |
4be74634 | 574 | dma_acct_start(s->qdev.conf.blk, &r->acct, r->req.sg, BLOCK_ACCT_WRITE); |
5d0d2467 | 575 | r->req.resid -= r->req.sg->size; |
fcaafb10 PB |
576 | r->req.aiocb = dma_blk_io(blk_get_aio_context(s->qdev.conf.blk), |
577 | r->req.sg, r->sector << BDRV_SECTOR_BITS, | |
99868af3 | 578 | BDRV_SECTOR_SIZE, |
fcaafb10 PB |
579 | sdc->dma_writev, r, scsi_dma_complete, r, |
580 | DMA_DIRECTION_TO_DEVICE); | |
5d0d2467 | 581 | } else { |
4be74634 | 582 | block_acct_start(blk_get_stats(s->qdev.conf.blk), &r->acct, |
03c90063 | 583 | r->qiov.size, BLOCK_ACCT_WRITE); |
fcaafb10 PB |
584 | r->req.aiocb = sdc->dma_writev(r->sector << BDRV_SECTOR_BITS, &r->qiov, |
585 | scsi_write_complete, r, r); | |
ea8a5d7f | 586 | } |
a917d384 | 587 | } |
2e5d83bb | 588 | |
a917d384 | 589 | /* Return a pointer to the data buffer. */ |
5c6c0e51 | 590 | static uint8_t *scsi_get_buf(SCSIRequest *req) |
a917d384 | 591 | { |
5c6c0e51 | 592 | SCSIDiskReq *r = DO_UPCAST(SCSIDiskReq, req, req); |
2e5d83bb | 593 | |
3f4cb3d3 | 594 | return (uint8_t *)r->iov.iov_base; |
2e5d83bb PB |
595 | } |
596 | ||
3d4a8bf0 | 597 | static int scsi_disk_emulate_vpd_page(SCSIRequest *req, uint8_t *outbuf) |
0b06c059 | 598 | { |
383b4d9b | 599 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, req->dev); |
0a96ca24 DHB |
600 | uint8_t page_code = req->cmd.buf[2]; |
601 | int start, buflen = 0; | |
0b06c059 | 602 | |
0a96ca24 DHB |
603 | outbuf[buflen++] = s->qdev.type & 0x1f; |
604 | outbuf[buflen++] = page_code; | |
605 | outbuf[buflen++] = 0x00; | |
606 | outbuf[buflen++] = 0x00; | |
607 | start = buflen; | |
3e1c0c9a | 608 | |
0a96ca24 DHB |
609 | switch (page_code) { |
610 | case 0x00: /* Supported page codes, mandatory */ | |
611 | { | |
59ee9500 | 612 | trace_scsi_disk_emulate_vpd_page_00(req->cmd.xfer); |
0a96ca24 DHB |
613 | outbuf[buflen++] = 0x00; /* list of supported pages (this page) */ |
614 | if (s->serial) { | |
615 | outbuf[buflen++] = 0x80; /* unit serial number */ | |
616 | } | |
617 | outbuf[buflen++] = 0x83; /* device identification */ | |
618 | if (s->qdev.type == TYPE_DISK) { | |
619 | outbuf[buflen++] = 0xb0; /* block limits */ | |
620 | outbuf[buflen++] = 0xb1; /* block device characteristics */ | |
621 | outbuf[buflen++] = 0xb2; /* thin provisioning */ | |
622 | } | |
623 | break; | |
624 | } | |
625 | case 0x80: /* Device serial number, optional */ | |
626 | { | |
627 | int l; | |
0b06c059 | 628 | |
0a96ca24 | 629 | if (!s->serial) { |
59ee9500 | 630 | trace_scsi_disk_emulate_vpd_page_80_not_supported(); |
0a96ca24 | 631 | return -1; |
0b06c059 GH |
632 | } |
633 | ||
0a96ca24 DHB |
634 | l = strlen(s->serial); |
635 | if (l > 36) { | |
636 | l = 36; | |
637 | } | |
0b06c059 | 638 | |
59ee9500 | 639 | trace_scsi_disk_emulate_vpd_page_80(req->cmd.xfer); |
0a96ca24 DHB |
640 | memcpy(outbuf + buflen, s->serial, l); |
641 | buflen += l; | |
642 | break; | |
643 | } | |
64cc2284 | 644 | |
0a96ca24 DHB |
645 | case 0x83: /* Device identification page, mandatory */ |
646 | { | |
7471a649 | 647 | int id_len = s->device_id ? MIN(strlen(s->device_id), 255 - 8) : 0; |
64cc2284 | 648 | |
59ee9500 | 649 | trace_scsi_disk_emulate_vpd_page_83(req->cmd.xfer); |
0a96ca24 | 650 | |
a8f58afc KW |
651 | if (id_len) { |
652 | outbuf[buflen++] = 0x2; /* ASCII */ | |
653 | outbuf[buflen++] = 0; /* not officially assigned */ | |
654 | outbuf[buflen++] = 0; /* reserved */ | |
655 | outbuf[buflen++] = id_len; /* length of data following */ | |
7471a649 | 656 | memcpy(outbuf + buflen, s->device_id, id_len); |
a8f58afc KW |
657 | buflen += id_len; |
658 | } | |
0a96ca24 DHB |
659 | |
660 | if (s->qdev.wwn) { | |
661 | outbuf[buflen++] = 0x1; /* Binary */ | |
662 | outbuf[buflen++] = 0x3; /* NAA */ | |
663 | outbuf[buflen++] = 0; /* reserved */ | |
664 | outbuf[buflen++] = 8; | |
665 | stq_be_p(&outbuf[buflen], s->qdev.wwn); | |
666 | buflen += 8; | |
ea3bd56f | 667 | } |
0a96ca24 DHB |
668 | |
669 | if (s->qdev.port_wwn) { | |
670 | outbuf[buflen++] = 0x61; /* SAS / Binary */ | |
671 | outbuf[buflen++] = 0x93; /* PIV / Target port / NAA */ | |
672 | outbuf[buflen++] = 0; /* reserved */ | |
673 | outbuf[buflen++] = 8; | |
674 | stq_be_p(&outbuf[buflen], s->qdev.port_wwn); | |
675 | buflen += 8; | |
070f8009 | 676 | } |
0a96ca24 DHB |
677 | |
678 | if (s->port_index) { | |
679 | outbuf[buflen++] = 0x61; /* SAS / Binary */ | |
680 | ||
681 | /* PIV/Target port/relative target port */ | |
682 | outbuf[buflen++] = 0x94; | |
683 | ||
684 | outbuf[buflen++] = 0; /* reserved */ | |
685 | outbuf[buflen++] = 4; | |
686 | stw_be_p(&outbuf[buflen + 2], s->port_index); | |
687 | buflen += 4; | |
ee3659e3 | 688 | } |
0a96ca24 DHB |
689 | break; |
690 | } | |
691 | case 0xb0: /* block limits */ | |
692 | { | |
3d4a8bf0 | 693 | SCSIBlockLimits bl = {}; |
0a96ca24 DHB |
694 | |
695 | if (s->qdev.type == TYPE_ROM) { | |
59ee9500 | 696 | trace_scsi_disk_emulate_vpd_page_b0_not_supported(); |
0b06c059 GH |
697 | return -1; |
698 | } | |
3d4a8bf0 PB |
699 | bl.wsnz = 1; |
700 | bl.unmap_sectors = | |
701 | s->qdev.conf.discard_granularity / s->qdev.blocksize; | |
702 | bl.min_io_size = | |
703 | s->qdev.conf.min_io_size / s->qdev.blocksize; | |
704 | bl.opt_io_size = | |
705 | s->qdev.conf.opt_io_size / s->qdev.blocksize; | |
706 | bl.max_unmap_sectors = | |
707 | s->max_unmap_size / s->qdev.blocksize; | |
708 | bl.max_io_sectors = | |
709 | s->max_io_size / s->qdev.blocksize; | |
710 | /* 255 descriptors fit in 4 KiB with an 8-byte header */ | |
711 | bl.max_unmap_descr = 255; | |
712 | ||
0a96ca24 DHB |
713 | if (s->qdev.type == TYPE_DISK) { |
714 | int max_transfer_blk = blk_get_max_transfer(s->qdev.conf.blk); | |
715 | int max_io_sectors_blk = | |
716 | max_transfer_blk / s->qdev.blocksize; | |
717 | ||
3d4a8bf0 PB |
718 | bl.max_io_sectors = |
719 | MIN_NON_ZERO(max_io_sectors_blk, bl.max_io_sectors); | |
0a96ca24 | 720 | } |
3d4a8bf0 | 721 | buflen += scsi_emulate_block_limits(outbuf + buflen, &bl); |
0a96ca24 DHB |
722 | break; |
723 | } | |
724 | case 0xb1: /* block device characteristics */ | |
725 | { | |
740842c9 | 726 | buflen = 0x40; |
0a96ca24 DHB |
727 | outbuf[4] = (s->rotation_rate >> 8) & 0xff; |
728 | outbuf[5] = s->rotation_rate & 0xff; | |
740842c9 DHB |
729 | outbuf[6] = 0; /* PRODUCT TYPE */ |
730 | outbuf[7] = 0; /* WABEREQ | WACEREQ | NOMINAL FORM FACTOR */ | |
731 | outbuf[8] = 0; /* VBULS */ | |
0a96ca24 DHB |
732 | break; |
733 | } | |
734 | case 0xb2: /* thin provisioning */ | |
735 | { | |
736 | buflen = 8; | |
737 | outbuf[4] = 0; | |
738 | outbuf[5] = 0xe0; /* unmap & write_same 10/16 all supported */ | |
739 | outbuf[6] = s->qdev.conf.discard_granularity ? 2 : 1; | |
740 | outbuf[7] = 0; | |
741 | break; | |
742 | } | |
743 | default: | |
744 | return -1; | |
745 | } | |
746 | /* done with EVPD */ | |
747 | assert(buflen - start <= 255); | |
748 | outbuf[start - 1] = buflen - start; | |
749 | return buflen; | |
750 | } | |
751 | ||
752 | static int scsi_disk_emulate_inquiry(SCSIRequest *req, uint8_t *outbuf) | |
753 | { | |
754 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, req->dev); | |
755 | int buflen = 0; | |
756 | ||
757 | if (req->cmd.buf[1] & 0x1) { | |
758 | /* Vital product data */ | |
759 | return scsi_disk_emulate_vpd_page(req, outbuf); | |
0b06c059 GH |
760 | } |
761 | ||
762 | /* Standard INQUIRY data */ | |
763 | if (req->cmd.buf[2] != 0) { | |
0b06c059 GH |
764 | return -1; |
765 | } | |
766 | ||
767 | /* PAGE CODE == 0 */ | |
0b06c059 | 768 | buflen = req->cmd.xfer; |
f01b5931 | 769 | if (buflen > SCSI_MAX_INQUIRY_LEN) { |
0b06c059 | 770 | buflen = SCSI_MAX_INQUIRY_LEN; |
f01b5931 | 771 | } |
0b06c059 | 772 | |
f37bd73b | 773 | outbuf[0] = s->qdev.type & 0x1f; |
bfe3d7ac | 774 | outbuf[1] = (s->features & (1 << SCSI_DISK_F_REMOVABLE)) ? 0x80 : 0; |
353815aa DF |
775 | |
776 | strpadcpy((char *) &outbuf[16], 16, s->product, ' '); | |
777 | strpadcpy((char *) &outbuf[8], 8, s->vendor, ' '); | |
778 | ||
314b1811 | 779 | memset(&outbuf[32], 0, 4); |
552fee93 | 780 | memcpy(&outbuf[32], s->version, MIN(4, strlen(s->version))); |
99aba0c4 CH |
781 | /* |
782 | * We claim conformance to SPC-3, which is required for guests | |
783 | * to ask for modern features like READ CAPACITY(16) or the | |
784 | * block characteristics VPD page by default. Not all of SPC-3 | |
785 | * is actually implemented, but we're good enough. | |
786 | */ | |
2343be0d | 787 | outbuf[2] = s->qdev.default_scsi_version; |
1109c894 | 788 | outbuf[3] = 2 | 0x10; /* Format 2, HiSup */ |
ad3cea42 AT |
789 | |
790 | if (buflen > 36) { | |
791 | outbuf[4] = buflen - 5; /* Additional Length = (Len - 1) - 4 */ | |
792 | } else { | |
793 | /* If the allocation length of CDB is too small, | |
794 | the additional length is not adjusted */ | |
795 | outbuf[4] = 36 - 5; | |
796 | } | |
797 | ||
0b06c059 | 798 | /* Sync data transfer and TCQ. */ |
afd4030c | 799 | outbuf[7] = 0x10 | (req->bus->info->tcq ? 0x02 : 0); |
0b06c059 GH |
800 | return buflen; |
801 | } | |
802 | ||
430ee2f2 PB |
803 | static inline bool media_is_dvd(SCSIDiskState *s) |
804 | { | |
805 | uint64_t nb_sectors; | |
806 | if (s->qdev.type != TYPE_ROM) { | |
807 | return false; | |
808 | } | |
cd723b85 | 809 | if (!blk_is_available(s->qdev.conf.blk)) { |
7d99f4c1 MR |
810 | return false; |
811 | } | |
4be74634 | 812 | blk_get_geometry(s->qdev.conf.blk, &nb_sectors); |
430ee2f2 PB |
813 | return nb_sectors > CD_MAX_SECTORS; |
814 | } | |
815 | ||
ceb792ef PB |
816 | static inline bool media_is_cd(SCSIDiskState *s) |
817 | { | |
818 | uint64_t nb_sectors; | |
819 | if (s->qdev.type != TYPE_ROM) { | |
820 | return false; | |
821 | } | |
cd723b85 | 822 | if (!blk_is_available(s->qdev.conf.blk)) { |
7d99f4c1 MR |
823 | return false; |
824 | } | |
4be74634 | 825 | blk_get_geometry(s->qdev.conf.blk, &nb_sectors); |
ceb792ef PB |
826 | return nb_sectors <= CD_MAX_SECTORS; |
827 | } | |
828 | ||
1a4f0c3a PB |
829 | static int scsi_read_disc_information(SCSIDiskState *s, SCSIDiskReq *r, |
830 | uint8_t *outbuf) | |
831 | { | |
832 | uint8_t type = r->req.cmd.buf[1] & 7; | |
833 | ||
834 | if (s->qdev.type != TYPE_ROM) { | |
835 | return -1; | |
836 | } | |
837 | ||
838 | /* Types 1/2 are only defined for Blu-Ray. */ | |
839 | if (type != 0) { | |
840 | scsi_check_condition(r, SENSE_CODE(INVALID_FIELD)); | |
841 | return -1; | |
842 | } | |
843 | ||
844 | memset(outbuf, 0, 34); | |
845 | outbuf[1] = 32; | |
846 | outbuf[2] = 0xe; /* last session complete, disc finalized */ | |
847 | outbuf[3] = 1; /* first track on disc */ | |
848 | outbuf[4] = 1; /* # of sessions */ | |
849 | outbuf[5] = 1; /* first track of last session */ | |
850 | outbuf[6] = 1; /* last track of last session */ | |
851 | outbuf[7] = 0x20; /* unrestricted use */ | |
852 | outbuf[8] = 0x00; /* CD-ROM or DVD-ROM */ | |
853 | /* 9-10-11: most significant byte corresponding bytes 4-5-6 */ | |
854 | /* 12-23: not meaningful for CD-ROM or DVD-ROM */ | |
855 | /* 24-31: disc bar code */ | |
856 | /* 32: disc application code */ | |
857 | /* 33: number of OPC tables */ | |
858 | ||
859 | return 34; | |
860 | } | |
861 | ||
b6c251ab PB |
862 | static int scsi_read_dvd_structure(SCSIDiskState *s, SCSIDiskReq *r, |
863 | uint8_t *outbuf) | |
864 | { | |
ceb792ef PB |
865 | static const int rds_caps_size[5] = { |
866 | [0] = 2048 + 4, | |
867 | [1] = 4 + 4, | |
868 | [3] = 188 + 4, | |
869 | [4] = 2048 + 4, | |
870 | }; | |
871 | ||
872 | uint8_t media = r->req.cmd.buf[1]; | |
873 | uint8_t layer = r->req.cmd.buf[6]; | |
874 | uint8_t format = r->req.cmd.buf[7]; | |
875 | int size = -1; | |
876 | ||
877 | if (s->qdev.type != TYPE_ROM) { | |
878 | return -1; | |
879 | } | |
880 | if (media != 0) { | |
881 | scsi_check_condition(r, SENSE_CODE(INVALID_FIELD)); | |
882 | return -1; | |
883 | } | |
884 | ||
885 | if (format != 0xff) { | |
cd723b85 | 886 | if (!blk_is_available(s->qdev.conf.blk)) { |
ceb792ef PB |
887 | scsi_check_condition(r, SENSE_CODE(NO_MEDIUM)); |
888 | return -1; | |
889 | } | |
890 | if (media_is_cd(s)) { | |
891 | scsi_check_condition(r, SENSE_CODE(INCOMPATIBLE_FORMAT)); | |
892 | return -1; | |
893 | } | |
894 | if (format >= ARRAY_SIZE(rds_caps_size)) { | |
895 | return -1; | |
896 | } | |
897 | size = rds_caps_size[format]; | |
898 | memset(outbuf, 0, size); | |
899 | } | |
900 | ||
901 | switch (format) { | |
902 | case 0x00: { | |
903 | /* Physical format information */ | |
904 | uint64_t nb_sectors; | |
905 | if (layer != 0) { | |
906 | goto fail; | |
907 | } | |
4be74634 | 908 | blk_get_geometry(s->qdev.conf.blk, &nb_sectors); |
ceb792ef PB |
909 | |
910 | outbuf[4] = 1; /* DVD-ROM, part version 1 */ | |
911 | outbuf[5] = 0xf; /* 120mm disc, minimum rate unspecified */ | |
912 | outbuf[6] = 1; /* one layer, read-only (per MMC-2 spec) */ | |
913 | outbuf[7] = 0; /* default densities */ | |
914 | ||
915 | stl_be_p(&outbuf[12], (nb_sectors >> 2) - 1); /* end sector */ | |
916 | stl_be_p(&outbuf[16], (nb_sectors >> 2) - 1); /* l0 end sector */ | |
917 | break; | |
918 | } | |
919 | ||
920 | case 0x01: /* DVD copyright information, all zeros */ | |
921 | break; | |
922 | ||
923 | case 0x03: /* BCA information - invalid field for no BCA info */ | |
924 | return -1; | |
925 | ||
926 | case 0x04: /* DVD disc manufacturing information, all zeros */ | |
927 | break; | |
928 | ||
929 | case 0xff: { /* List capabilities */ | |
930 | int i; | |
931 | size = 4; | |
932 | for (i = 0; i < ARRAY_SIZE(rds_caps_size); i++) { | |
933 | if (!rds_caps_size[i]) { | |
934 | continue; | |
935 | } | |
936 | outbuf[size] = i; | |
937 | outbuf[size + 1] = 0x40; /* Not writable, readable */ | |
938 | stw_be_p(&outbuf[size + 2], rds_caps_size[i]); | |
939 | size += 4; | |
940 | } | |
941 | break; | |
942 | } | |
943 | ||
944 | default: | |
945 | return -1; | |
946 | } | |
947 | ||
948 | /* Size of buffer, not including 2 byte size field */ | |
949 | stw_be_p(outbuf, size - 2); | |
950 | return size; | |
951 | ||
952 | fail: | |
b6c251ab PB |
953 | return -1; |
954 | } | |
955 | ||
3c2f7c12 | 956 | static int scsi_event_status_media(SCSIDiskState *s, uint8_t *outbuf) |
b6c251ab | 957 | { |
3c2f7c12 PB |
958 | uint8_t event_code, media_status; |
959 | ||
960 | media_status = 0; | |
961 | if (s->tray_open) { | |
962 | media_status = MS_TRAY_OPEN; | |
4be74634 | 963 | } else if (blk_is_inserted(s->qdev.conf.blk)) { |
3c2f7c12 PB |
964 | media_status = MS_MEDIA_PRESENT; |
965 | } | |
966 | ||
967 | /* Event notification descriptor */ | |
968 | event_code = MEC_NO_CHANGE; | |
4480de19 PB |
969 | if (media_status != MS_TRAY_OPEN) { |
970 | if (s->media_event) { | |
971 | event_code = MEC_NEW_MEDIA; | |
972 | s->media_event = false; | |
973 | } else if (s->eject_request) { | |
974 | event_code = MEC_EJECT_REQUESTED; | |
975 | s->eject_request = false; | |
976 | } | |
3c2f7c12 PB |
977 | } |
978 | ||
979 | outbuf[0] = event_code; | |
980 | outbuf[1] = media_status; | |
981 | ||
982 | /* These fields are reserved, just clear them. */ | |
983 | outbuf[2] = 0; | |
984 | outbuf[3] = 0; | |
985 | return 4; | |
986 | } | |
987 | ||
988 | static int scsi_get_event_status_notification(SCSIDiskState *s, SCSIDiskReq *r, | |
989 | uint8_t *outbuf) | |
990 | { | |
991 | int size; | |
992 | uint8_t *buf = r->req.cmd.buf; | |
993 | uint8_t notification_class_request = buf[4]; | |
994 | if (s->qdev.type != TYPE_ROM) { | |
995 | return -1; | |
996 | } | |
997 | if ((buf[1] & 1) == 0) { | |
998 | /* asynchronous */ | |
999 | return -1; | |
1000 | } | |
1001 | ||
1002 | size = 4; | |
1003 | outbuf[0] = outbuf[1] = 0; | |
1004 | outbuf[3] = 1 << GESN_MEDIA; /* supported events */ | |
1005 | if (notification_class_request & (1 << GESN_MEDIA)) { | |
1006 | outbuf[2] = GESN_MEDIA; | |
1007 | size += scsi_event_status_media(s, &outbuf[size]); | |
1008 | } else { | |
1009 | outbuf[2] = 0x80; | |
1010 | } | |
1011 | stw_be_p(outbuf, size - 4); | |
1012 | return size; | |
b6c251ab PB |
1013 | } |
1014 | ||
430ee2f2 | 1015 | static int scsi_get_configuration(SCSIDiskState *s, uint8_t *outbuf) |
b6c251ab | 1016 | { |
430ee2f2 PB |
1017 | int current; |
1018 | ||
b6c251ab PB |
1019 | if (s->qdev.type != TYPE_ROM) { |
1020 | return -1; | |
1021 | } | |
7d99f4c1 MR |
1022 | |
1023 | if (media_is_dvd(s)) { | |
1024 | current = MMC_PROFILE_DVD_ROM; | |
1025 | } else if (media_is_cd(s)) { | |
1026 | current = MMC_PROFILE_CD_ROM; | |
1027 | } else { | |
1028 | current = MMC_PROFILE_NONE; | |
1029 | } | |
1030 | ||
430ee2f2 PB |
1031 | memset(outbuf, 0, 40); |
1032 | stl_be_p(&outbuf[0], 36); /* Bytes after the data length field */ | |
1033 | stw_be_p(&outbuf[6], current); | |
1034 | /* outbuf[8] - outbuf[19]: Feature 0 - Profile list */ | |
1035 | outbuf[10] = 0x03; /* persistent, current */ | |
1036 | outbuf[11] = 8; /* two profiles */ | |
1037 | stw_be_p(&outbuf[12], MMC_PROFILE_DVD_ROM); | |
1038 | outbuf[14] = (current == MMC_PROFILE_DVD_ROM); | |
1039 | stw_be_p(&outbuf[16], MMC_PROFILE_CD_ROM); | |
1040 | outbuf[18] = (current == MMC_PROFILE_CD_ROM); | |
1041 | /* outbuf[20] - outbuf[31]: Feature 1 - Core feature */ | |
1042 | stw_be_p(&outbuf[20], 1); | |
1043 | outbuf[22] = 0x08 | 0x03; /* version 2, persistent, current */ | |
1044 | outbuf[23] = 8; | |
1045 | stl_be_p(&outbuf[24], 1); /* SCSI */ | |
1046 | outbuf[28] = 1; /* DBE = 1, mandatory */ | |
1047 | /* outbuf[32] - outbuf[39]: Feature 3 - Removable media feature */ | |
1048 | stw_be_p(&outbuf[32], 3); | |
1049 | outbuf[34] = 0x08 | 0x03; /* version 2, persistent, current */ | |
1050 | outbuf[35] = 4; | |
1051 | outbuf[36] = 0x39; /* tray, load=1, eject=1, unlocked at powerup, lock=1 */ | |
1052 | /* TODO: Random readable, CD read, DVD read, drive serial number, | |
1053 | power management */ | |
1054 | return 40; | |
b6c251ab PB |
1055 | } |
1056 | ||
1057 | static int scsi_emulate_mechanism_status(SCSIDiskState *s, uint8_t *outbuf) | |
1058 | { | |
1059 | if (s->qdev.type != TYPE_ROM) { | |
1060 | return -1; | |
1061 | } | |
1062 | memset(outbuf, 0, 8); | |
1063 | outbuf[5] = 1; /* CD-ROM */ | |
1064 | return 8; | |
1065 | } | |
1066 | ||
cfc606da | 1067 | static int mode_sense_page(SCSIDiskState *s, int page, uint8_t **p_outbuf, |
282ab04e | 1068 | int page_control) |
ebddfcbe | 1069 | { |
a8f4bbe2 PB |
1070 | static const int mode_sense_valid[0x3f] = { |
1071 | [MODE_PAGE_HD_GEOMETRY] = (1 << TYPE_DISK), | |
1072 | [MODE_PAGE_FLEXIBLE_DISK_GEOMETRY] = (1 << TYPE_DISK), | |
1073 | [MODE_PAGE_CACHING] = (1 << TYPE_DISK) | (1 << TYPE_ROM), | |
a07c7dcd PB |
1074 | [MODE_PAGE_R_W_ERROR] = (1 << TYPE_DISK) | (1 << TYPE_ROM), |
1075 | [MODE_PAGE_AUDIO_CTL] = (1 << TYPE_ROM), | |
a8f4bbe2 PB |
1076 | [MODE_PAGE_CAPABILITIES] = (1 << TYPE_ROM), |
1077 | }; | |
ef405611 PB |
1078 | |
1079 | uint8_t *p = *p_outbuf + 2; | |
1080 | int length; | |
ebddfcbe | 1081 | |
a8f4bbe2 PB |
1082 | if ((mode_sense_valid[page] & (1 << s->qdev.type)) == 0) { |
1083 | return -1; | |
1084 | } | |
1085 | ||
282ab04e BK |
1086 | /* |
1087 | * If Changeable Values are requested, a mask denoting those mode parameters | |
1088 | * that are changeable shall be returned. As we currently don't support | |
1089 | * parameter changes via MODE_SELECT all bits are returned set to zero. | |
1090 | * The buffer was already menset to zero by the caller of this function. | |
ef405611 PB |
1091 | * |
1092 | * The offsets here are off by two compared to the descriptions in the | |
1093 | * SCSI specs, because those include a 2-byte header. This is unfortunate, | |
1094 | * but it is done so that offsets are consistent within our implementation | |
1095 | * of MODE SENSE and MODE SELECT. MODE SELECT has to deal with both | |
1096 | * 2-byte and 4-byte headers. | |
282ab04e | 1097 | */ |
ebddfcbe | 1098 | switch (page) { |
67cc61e4 | 1099 | case MODE_PAGE_HD_GEOMETRY: |
ef405611 | 1100 | length = 0x16; |
282ab04e | 1101 | if (page_control == 1) { /* Changeable Values */ |
cfc606da | 1102 | break; |
282ab04e | 1103 | } |
ebddfcbe | 1104 | /* if a geometry hint is available, use it */ |
ef405611 PB |
1105 | p[0] = (s->qdev.conf.cyls >> 16) & 0xff; |
1106 | p[1] = (s->qdev.conf.cyls >> 8) & 0xff; | |
1107 | p[2] = s->qdev.conf.cyls & 0xff; | |
1108 | p[3] = s->qdev.conf.heads & 0xff; | |
ebddfcbe | 1109 | /* Write precomp start cylinder, disabled */ |
ef405611 PB |
1110 | p[4] = (s->qdev.conf.cyls >> 16) & 0xff; |
1111 | p[5] = (s->qdev.conf.cyls >> 8) & 0xff; | |
1112 | p[6] = s->qdev.conf.cyls & 0xff; | |
ebddfcbe | 1113 | /* Reduced current start cylinder, disabled */ |
ef405611 PB |
1114 | p[7] = (s->qdev.conf.cyls >> 16) & 0xff; |
1115 | p[8] = (s->qdev.conf.cyls >> 8) & 0xff; | |
1116 | p[9] = s->qdev.conf.cyls & 0xff; | |
ebddfcbe | 1117 | /* Device step rate [ns], 200ns */ |
ef405611 PB |
1118 | p[10] = 0; |
1119 | p[11] = 200; | |
ebddfcbe | 1120 | /* Landing zone cylinder */ |
ef405611 PB |
1121 | p[12] = 0xff; |
1122 | p[13] = 0xff; | |
ebddfcbe | 1123 | p[14] = 0xff; |
ebddfcbe | 1124 | /* Medium rotation rate [rpm], 5400 rpm */ |
ef405611 PB |
1125 | p[18] = (5400 >> 8) & 0xff; |
1126 | p[19] = 5400 & 0xff; | |
cfc606da | 1127 | break; |
ebddfcbe | 1128 | |
67cc61e4 | 1129 | case MODE_PAGE_FLEXIBLE_DISK_GEOMETRY: |
ef405611 | 1130 | length = 0x1e; |
282ab04e | 1131 | if (page_control == 1) { /* Changeable Values */ |
cfc606da | 1132 | break; |
282ab04e | 1133 | } |
ebddfcbe | 1134 | /* Transfer rate [kbit/s], 5Mbit/s */ |
ef405611 PB |
1135 | p[0] = 5000 >> 8; |
1136 | p[1] = 5000 & 0xff; | |
ebddfcbe | 1137 | /* if a geometry hint is available, use it */ |
ef405611 PB |
1138 | p[2] = s->qdev.conf.heads & 0xff; |
1139 | p[3] = s->qdev.conf.secs & 0xff; | |
1140 | p[4] = s->qdev.blocksize >> 8; | |
1141 | p[6] = (s->qdev.conf.cyls >> 8) & 0xff; | |
1142 | p[7] = s->qdev.conf.cyls & 0xff; | |
1143 | /* Write precomp start cylinder, disabled */ | |
d252df48 MA |
1144 | p[8] = (s->qdev.conf.cyls >> 8) & 0xff; |
1145 | p[9] = s->qdev.conf.cyls & 0xff; | |
ef405611 | 1146 | /* Reduced current start cylinder, disabled */ |
d252df48 MA |
1147 | p[10] = (s->qdev.conf.cyls >> 8) & 0xff; |
1148 | p[11] = s->qdev.conf.cyls & 0xff; | |
ebddfcbe | 1149 | /* Device step rate [100us], 100us */ |
ef405611 PB |
1150 | p[12] = 0; |
1151 | p[13] = 1; | |
ebddfcbe | 1152 | /* Device step pulse width [us], 1us */ |
ef405611 | 1153 | p[14] = 1; |
ebddfcbe | 1154 | /* Device head settle delay [100us], 100us */ |
ef405611 PB |
1155 | p[15] = 0; |
1156 | p[16] = 1; | |
ebddfcbe | 1157 | /* Motor on delay [0.1s], 0.1s */ |
ef405611 | 1158 | p[17] = 1; |
ebddfcbe | 1159 | /* Motor off delay [0.1s], 0.1s */ |
ef405611 | 1160 | p[18] = 1; |
ebddfcbe | 1161 | /* Medium rotation rate [rpm], 5400 rpm */ |
ef405611 PB |
1162 | p[26] = (5400 >> 8) & 0xff; |
1163 | p[27] = 5400 & 0xff; | |
cfc606da | 1164 | break; |
ebddfcbe | 1165 | |
67cc61e4 | 1166 | case MODE_PAGE_CACHING: |
ef405611 | 1167 | length = 0x12; |
96c91bbf | 1168 | if (page_control == 1 || /* Changeable Values */ |
4be74634 | 1169 | blk_enable_write_cache(s->qdev.conf.blk)) { |
ef405611 | 1170 | p[0] = 4; /* WCE */ |
ebddfcbe | 1171 | } |
cfc606da | 1172 | break; |
ebddfcbe | 1173 | |
a07c7dcd | 1174 | case MODE_PAGE_R_W_ERROR: |
ef405611 | 1175 | length = 10; |
4f588b15 PB |
1176 | if (page_control == 1) { /* Changeable Values */ |
1177 | break; | |
1178 | } | |
ef405611 | 1179 | p[0] = 0x80; /* Automatic Write Reallocation Enabled */ |
a07c7dcd | 1180 | if (s->qdev.type == TYPE_ROM) { |
ef405611 | 1181 | p[1] = 0x20; /* Read Retry Count */ |
a07c7dcd PB |
1182 | } |
1183 | break; | |
1184 | ||
1185 | case MODE_PAGE_AUDIO_CTL: | |
ef405611 | 1186 | length = 14; |
a07c7dcd PB |
1187 | break; |
1188 | ||
67cc61e4 | 1189 | case MODE_PAGE_CAPABILITIES: |
ef405611 | 1190 | length = 0x14; |
282ab04e | 1191 | if (page_control == 1) { /* Changeable Values */ |
cfc606da | 1192 | break; |
282ab04e | 1193 | } |
a07c7dcd | 1194 | |
ef405611 PB |
1195 | p[0] = 0x3b; /* CD-R & CD-RW read */ |
1196 | p[1] = 0; /* Writing not supported */ | |
1197 | p[2] = 0x7f; /* Audio, composite, digital out, | |
ebddfcbe | 1198 | mode 2 form 1&2, multi session */ |
ef405611 | 1199 | p[3] = 0xff; /* CD DA, DA accurate, RW supported, |
ebddfcbe GH |
1200 | RW corrected, C2 errors, ISRC, |
1201 | UPC, Bar code */ | |
ef405611 | 1202 | p[4] = 0x2d | (s->tray_locked ? 2 : 0); |
ebddfcbe | 1203 | /* Locking supported, jumper present, eject, tray */ |
ef405611 | 1204 | p[5] = 0; /* no volume & mute control, no |
ebddfcbe | 1205 | changer */ |
ef405611 PB |
1206 | p[6] = (50 * 176) >> 8; /* 50x read speed */ |
1207 | p[7] = (50 * 176) & 0xff; | |
1208 | p[8] = 2 >> 8; /* Two volume levels */ | |
1209 | p[9] = 2 & 0xff; | |
1210 | p[10] = 2048 >> 8; /* 2M buffer */ | |
1211 | p[11] = 2048 & 0xff; | |
1212 | p[12] = (16 * 176) >> 8; /* 16x read speed current */ | |
1213 | p[13] = (16 * 176) & 0xff; | |
1214 | p[16] = (16 * 176) >> 8; /* 16x write speed */ | |
1215 | p[17] = (16 * 176) & 0xff; | |
1216 | p[18] = (16 * 176) >> 8; /* 16x write speed current */ | |
ebddfcbe | 1217 | p[19] = (16 * 176) & 0xff; |
cfc606da | 1218 | break; |
ebddfcbe GH |
1219 | |
1220 | default: | |
cfc606da | 1221 | return -1; |
ebddfcbe | 1222 | } |
cfc606da | 1223 | |
ef405611 PB |
1224 | assert(length < 256); |
1225 | (*p_outbuf)[0] = page; | |
1226 | (*p_outbuf)[1] = length; | |
1227 | *p_outbuf += length + 2; | |
1228 | return length + 2; | |
ebddfcbe GH |
1229 | } |
1230 | ||
cfc606da | 1231 | static int scsi_disk_emulate_mode_sense(SCSIDiskReq *r, uint8_t *outbuf) |
ebddfcbe | 1232 | { |
cfc606da | 1233 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); |
ebddfcbe | 1234 | uint64_t nb_sectors; |
e590ecbe PB |
1235 | bool dbd; |
1236 | int page, buflen, ret, page_control; | |
ebddfcbe | 1237 | uint8_t *p; |
ce512ee1 | 1238 | uint8_t dev_specific_param; |
ebddfcbe | 1239 | |
e590ecbe | 1240 | dbd = (r->req.cmd.buf[1] & 0x8) != 0; |
cfc606da PB |
1241 | page = r->req.cmd.buf[2] & 0x3f; |
1242 | page_control = (r->req.cmd.buf[2] & 0xc0) >> 6; | |
59ee9500 LV |
1243 | |
1244 | trace_scsi_disk_emulate_mode_sense((r->req.cmd.buf[0] == MODE_SENSE) ? 6 : | |
1245 | 10, page, r->req.cmd.xfer, page_control); | |
cfc606da | 1246 | memset(outbuf, 0, r->req.cmd.xfer); |
ebddfcbe GH |
1247 | p = outbuf; |
1248 | ||
e590ecbe | 1249 | if (s->qdev.type == TYPE_DISK) { |
da8365db | 1250 | dev_specific_param = s->features & (1 << SCSI_DISK_F_DPOFUA) ? 0x10 : 0; |
4be74634 | 1251 | if (blk_is_read_only(s->qdev.conf.blk)) { |
e590ecbe PB |
1252 | dev_specific_param |= 0x80; /* Readonly. */ |
1253 | } | |
ce512ee1 | 1254 | } else { |
e590ecbe PB |
1255 | /* MMC prescribes that CD/DVD drives have no block descriptors, |
1256 | * and defines no device-specific parameter. */ | |
6a2de0f2 | 1257 | dev_specific_param = 0x00; |
e590ecbe | 1258 | dbd = true; |
ce512ee1 BK |
1259 | } |
1260 | ||
cfc606da | 1261 | if (r->req.cmd.buf[0] == MODE_SENSE) { |
ce512ee1 BK |
1262 | p[1] = 0; /* Default media type. */ |
1263 | p[2] = dev_specific_param; | |
1264 | p[3] = 0; /* Block descriptor length. */ | |
1265 | p += 4; | |
1266 | } else { /* MODE_SENSE_10 */ | |
1267 | p[2] = 0; /* Default media type. */ | |
1268 | p[3] = dev_specific_param; | |
1269 | p[6] = p[7] = 0; /* Block descriptor length. */ | |
1270 | p += 8; | |
ebddfcbe | 1271 | } |
ebddfcbe | 1272 | |
4be74634 | 1273 | blk_get_geometry(s->qdev.conf.blk, &nb_sectors); |
e590ecbe | 1274 | if (!dbd && nb_sectors) { |
cfc606da | 1275 | if (r->req.cmd.buf[0] == MODE_SENSE) { |
ce512ee1 BK |
1276 | outbuf[3] = 8; /* Block descriptor length */ |
1277 | } else { /* MODE_SENSE_10 */ | |
1278 | outbuf[7] = 8; /* Block descriptor length */ | |
1279 | } | |
69377307 | 1280 | nb_sectors /= (s->qdev.blocksize / 512); |
f01b5931 | 1281 | if (nb_sectors > 0xffffff) { |
2488b740 | 1282 | nb_sectors = 0; |
f01b5931 | 1283 | } |
ebddfcbe GH |
1284 | p[0] = 0; /* media density code */ |
1285 | p[1] = (nb_sectors >> 16) & 0xff; | |
1286 | p[2] = (nb_sectors >> 8) & 0xff; | |
1287 | p[3] = nb_sectors & 0xff; | |
1288 | p[4] = 0; /* reserved */ | |
1289 | p[5] = 0; /* bytes 5-7 are the sector size in bytes */ | |
69377307 | 1290 | p[6] = s->qdev.blocksize >> 8; |
ebddfcbe GH |
1291 | p[7] = 0; |
1292 | p += 8; | |
1293 | } | |
1294 | ||
cfc606da PB |
1295 | if (page_control == 3) { |
1296 | /* Saved Values */ | |
1297 | scsi_check_condition(r, SENSE_CODE(SAVING_PARAMS_NOT_SUPPORTED)); | |
1298 | return -1; | |
282ab04e BK |
1299 | } |
1300 | ||
cfc606da PB |
1301 | if (page == 0x3f) { |
1302 | for (page = 0; page <= 0x3e; page++) { | |
1303 | mode_sense_page(s, page, &p, page_control); | |
1304 | } | |
1305 | } else { | |
1306 | ret = mode_sense_page(s, page, &p, page_control); | |
1307 | if (ret == -1) { | |
1308 | return -1; | |
1309 | } | |
ebddfcbe GH |
1310 | } |
1311 | ||
1312 | buflen = p - outbuf; | |
ce512ee1 BK |
1313 | /* |
1314 | * The mode data length field specifies the length in bytes of the | |
1315 | * following data that is available to be transferred. The mode data | |
1316 | * length does not include itself. | |
1317 | */ | |
cfc606da | 1318 | if (r->req.cmd.buf[0] == MODE_SENSE) { |
ce512ee1 BK |
1319 | outbuf[0] = buflen - 1; |
1320 | } else { /* MODE_SENSE_10 */ | |
1321 | outbuf[0] = ((buflen - 2) >> 8) & 0xff; | |
1322 | outbuf[1] = (buflen - 2) & 0xff; | |
1323 | } | |
ebddfcbe GH |
1324 | return buflen; |
1325 | } | |
1326 | ||
02880f43 GH |
1327 | static int scsi_disk_emulate_read_toc(SCSIRequest *req, uint8_t *outbuf) |
1328 | { | |
1329 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, req->dev); | |
02880f43 GH |
1330 | int start_track, format, msf, toclen; |
1331 | uint64_t nb_sectors; | |
1332 | ||
1333 | msf = req->cmd.buf[1] & 2; | |
1334 | format = req->cmd.buf[2] & 0xf; | |
1335 | start_track = req->cmd.buf[6]; | |
4be74634 | 1336 | blk_get_geometry(s->qdev.conf.blk, &nb_sectors); |
59ee9500 | 1337 | trace_scsi_disk_emulate_read_toc(start_track, format, msf >> 1); |
69377307 | 1338 | nb_sectors /= s->qdev.blocksize / 512; |
02880f43 GH |
1339 | switch (format) { |
1340 | case 0: | |
1341 | toclen = cdrom_read_toc(nb_sectors, outbuf, msf, start_track); | |
1342 | break; | |
1343 | case 1: | |
1344 | /* multi session : only a single session defined */ | |
1345 | toclen = 12; | |
1346 | memset(outbuf, 0, 12); | |
1347 | outbuf[1] = 0x0a; | |
1348 | outbuf[2] = 0x01; | |
1349 | outbuf[3] = 0x01; | |
1350 | break; | |
1351 | case 2: | |
1352 | toclen = cdrom_read_toc_raw(nb_sectors, outbuf, msf, start_track); | |
1353 | break; | |
1354 | default: | |
1355 | return -1; | |
1356 | } | |
02880f43 GH |
1357 | return toclen; |
1358 | } | |
1359 | ||
68bb01f3 | 1360 | static int scsi_disk_emulate_start_stop(SCSIDiskReq *r) |
bfd52647 MA |
1361 | { |
1362 | SCSIRequest *req = &r->req; | |
1363 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, req->dev); | |
1364 | bool start = req->cmd.buf[4] & 1; | |
1365 | bool loej = req->cmd.buf[4] & 2; /* load on start, eject on !start */ | |
ae5708b3 RS |
1366 | int pwrcnd = req->cmd.buf[4] & 0xf0; |
1367 | ||
1368 | if (pwrcnd) { | |
1369 | /* eject/load only happens for power condition == 0 */ | |
1370 | return 0; | |
1371 | } | |
bfd52647 | 1372 | |
b456a71c | 1373 | if ((s->features & (1 << SCSI_DISK_F_REMOVABLE)) && loej) { |
68bb01f3 MA |
1374 | if (!start && !s->tray_open && s->tray_locked) { |
1375 | scsi_check_condition(r, | |
4be74634 | 1376 | blk_is_inserted(s->qdev.conf.blk) |
68bb01f3 MA |
1377 | ? SENSE_CODE(ILLEGAL_REQ_REMOVAL_PREVENTED) |
1378 | : SENSE_CODE(NOT_READY_REMOVAL_PREVENTED)); | |
1379 | return -1; | |
fdec4404 | 1380 | } |
d88b1819 LC |
1381 | |
1382 | if (s->tray_open != !start) { | |
4be74634 | 1383 | blk_eject(s->qdev.conf.blk, !start); |
d88b1819 LC |
1384 | s->tray_open = !start; |
1385 | } | |
bfd52647 | 1386 | } |
68bb01f3 | 1387 | return 0; |
bfd52647 MA |
1388 | } |
1389 | ||
314a3299 PB |
1390 | static void scsi_disk_emulate_read_data(SCSIRequest *req) |
1391 | { | |
1392 | SCSIDiskReq *r = DO_UPCAST(SCSIDiskReq, req, req); | |
1393 | int buflen = r->iov.iov_len; | |
1394 | ||
1395 | if (buflen) { | |
59ee9500 | 1396 | trace_scsi_disk_emulate_read_data(buflen); |
314a3299 PB |
1397 | r->iov.iov_len = 0; |
1398 | r->started = true; | |
1399 | scsi_req_data(&r->req, buflen); | |
1400 | return; | |
1401 | } | |
1402 | ||
1403 | /* This also clears the sense buffer for REQUEST SENSE. */ | |
1404 | scsi_req_complete(&r->req, GOOD); | |
1405 | } | |
1406 | ||
380feaff PB |
1407 | static int scsi_disk_check_mode_select(SCSIDiskState *s, int page, |
1408 | uint8_t *inbuf, int inlen) | |
1409 | { | |
1410 | uint8_t mode_current[SCSI_MAX_MODE_LEN]; | |
1411 | uint8_t mode_changeable[SCSI_MAX_MODE_LEN]; | |
1412 | uint8_t *p; | |
1413 | int len, expected_len, changeable_len, i; | |
1414 | ||
1415 | /* The input buffer does not include the page header, so it is | |
1416 | * off by 2 bytes. | |
1417 | */ | |
1418 | expected_len = inlen + 2; | |
1419 | if (expected_len > SCSI_MAX_MODE_LEN) { | |
1420 | return -1; | |
1421 | } | |
1422 | ||
1423 | p = mode_current; | |
1424 | memset(mode_current, 0, inlen + 2); | |
1425 | len = mode_sense_page(s, page, &p, 0); | |
1426 | if (len < 0 || len != expected_len) { | |
1427 | return -1; | |
1428 | } | |
1429 | ||
1430 | p = mode_changeable; | |
1431 | memset(mode_changeable, 0, inlen + 2); | |
1432 | changeable_len = mode_sense_page(s, page, &p, 1); | |
1433 | assert(changeable_len == len); | |
1434 | ||
1435 | /* Check that unchangeable bits are the same as what MODE SENSE | |
1436 | * would return. | |
1437 | */ | |
1438 | for (i = 2; i < len; i++) { | |
1439 | if (((mode_current[i] ^ inbuf[i - 2]) & ~mode_changeable[i]) != 0) { | |
1440 | return -1; | |
1441 | } | |
1442 | } | |
1443 | return 0; | |
1444 | } | |
1445 | ||
1446 | static void scsi_disk_apply_mode_select(SCSIDiskState *s, int page, uint8_t *p) | |
1447 | { | |
96c91bbf PB |
1448 | switch (page) { |
1449 | case MODE_PAGE_CACHING: | |
4be74634 | 1450 | blk_set_enable_write_cache(s->qdev.conf.blk, (p[0] & 4) != 0); |
96c91bbf PB |
1451 | break; |
1452 | ||
1453 | default: | |
1454 | break; | |
1455 | } | |
380feaff PB |
1456 | } |
1457 | ||
1458 | static int mode_select_pages(SCSIDiskReq *r, uint8_t *p, int len, bool change) | |
1459 | { | |
1460 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); | |
1461 | ||
1462 | while (len > 0) { | |
1463 | int page, subpage, page_len; | |
1464 | ||
1465 | /* Parse both possible formats for the mode page headers. */ | |
1466 | page = p[0] & 0x3f; | |
1467 | if (p[0] & 0x40) { | |
1468 | if (len < 4) { | |
1469 | goto invalid_param_len; | |
1470 | } | |
1471 | subpage = p[1]; | |
1472 | page_len = lduw_be_p(&p[2]); | |
1473 | p += 4; | |
1474 | len -= 4; | |
1475 | } else { | |
1476 | if (len < 2) { | |
1477 | goto invalid_param_len; | |
1478 | } | |
1479 | subpage = 0; | |
1480 | page_len = p[1]; | |
1481 | p += 2; | |
1482 | len -= 2; | |
1483 | } | |
1484 | ||
1485 | if (subpage) { | |
1486 | goto invalid_param; | |
1487 | } | |
1488 | if (page_len > len) { | |
1489 | goto invalid_param_len; | |
1490 | } | |
1491 | ||
1492 | if (!change) { | |
1493 | if (scsi_disk_check_mode_select(s, page, p, page_len) < 0) { | |
1494 | goto invalid_param; | |
1495 | } | |
1496 | } else { | |
1497 | scsi_disk_apply_mode_select(s, page, p); | |
1498 | } | |
1499 | ||
1500 | p += page_len; | |
1501 | len -= page_len; | |
1502 | } | |
1503 | return 0; | |
1504 | ||
1505 | invalid_param: | |
1506 | scsi_check_condition(r, SENSE_CODE(INVALID_PARAM)); | |
1507 | return -1; | |
1508 | ||
1509 | invalid_param_len: | |
1510 | scsi_check_condition(r, SENSE_CODE(INVALID_PARAM_LEN)); | |
1511 | return -1; | |
1512 | } | |
1513 | ||
1514 | static void scsi_disk_emulate_mode_select(SCSIDiskReq *r, uint8_t *inbuf) | |
1515 | { | |
accfeb2d | 1516 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); |
380feaff PB |
1517 | uint8_t *p = inbuf; |
1518 | int cmd = r->req.cmd.buf[0]; | |
1519 | int len = r->req.cmd.xfer; | |
1520 | int hdr_len = (cmd == MODE_SELECT ? 4 : 8); | |
1521 | int bd_len; | |
1522 | int pass; | |
1523 | ||
1524 | /* We only support PF=1, SP=0. */ | |
1525 | if ((r->req.cmd.buf[1] & 0x11) != 0x10) { | |
1526 | goto invalid_field; | |
1527 | } | |
1528 | ||
1529 | if (len < hdr_len) { | |
1530 | goto invalid_param_len; | |
1531 | } | |
1532 | ||
1533 | bd_len = (cmd == MODE_SELECT ? p[3] : lduw_be_p(&p[6])); | |
1534 | len -= hdr_len; | |
1535 | p += hdr_len; | |
1536 | if (len < bd_len) { | |
1537 | goto invalid_param_len; | |
1538 | } | |
1539 | if (bd_len != 0 && bd_len != 8) { | |
1540 | goto invalid_param; | |
1541 | } | |
1542 | ||
1543 | len -= bd_len; | |
1544 | p += bd_len; | |
1545 | ||
1546 | /* Ensure no change is made if there is an error! */ | |
1547 | for (pass = 0; pass < 2; pass++) { | |
1548 | if (mode_select_pages(r, p, len, pass == 1) < 0) { | |
1549 | assert(pass == 0); | |
1550 | return; | |
1551 | } | |
1552 | } | |
4be74634 | 1553 | if (!blk_enable_write_cache(s->qdev.conf.blk)) { |
accfeb2d PB |
1554 | /* The request is used as the AIO opaque value, so add a ref. */ |
1555 | scsi_req_ref(&r->req); | |
4be74634 | 1556 | block_acct_start(blk_get_stats(s->qdev.conf.blk), &r->acct, 0, |
5366d0c8 | 1557 | BLOCK_ACCT_FLUSH); |
4be74634 | 1558 | r->req.aiocb = blk_aio_flush(s->qdev.conf.blk, scsi_aio_complete, r); |
accfeb2d PB |
1559 | return; |
1560 | } | |
1561 | ||
380feaff PB |
1562 | scsi_req_complete(&r->req, GOOD); |
1563 | return; | |
1564 | ||
1565 | invalid_param: | |
1566 | scsi_check_condition(r, SENSE_CODE(INVALID_PARAM)); | |
1567 | return; | |
1568 | ||
1569 | invalid_param_len: | |
1570 | scsi_check_condition(r, SENSE_CODE(INVALID_PARAM_LEN)); | |
1571 | return; | |
1572 | ||
1573 | invalid_field: | |
1574 | scsi_check_condition(r, SENSE_CODE(INVALID_FIELD)); | |
380feaff PB |
1575 | } |
1576 | ||
444bc908 PB |
1577 | static inline bool check_lba_range(SCSIDiskState *s, |
1578 | uint64_t sector_num, uint32_t nb_sectors) | |
1579 | { | |
1580 | /* | |
1581 | * The first line tests that no overflow happens when computing the last | |
1582 | * sector. The second line tests that the last accessed sector is in | |
1583 | * range. | |
12ca76fc PB |
1584 | * |
1585 | * Careful, the computations should not underflow for nb_sectors == 0, | |
1586 | * and a 0-block read to the first LBA beyond the end of device is | |
1587 | * valid. | |
444bc908 PB |
1588 | */ |
1589 | return (sector_num <= sector_num + nb_sectors && | |
12ca76fc | 1590 | sector_num + nb_sectors <= s->qdev.max_lba + 1); |
444bc908 PB |
1591 | } |
1592 | ||
5222aaf2 PB |
1593 | typedef struct UnmapCBData { |
1594 | SCSIDiskReq *r; | |
1595 | uint8_t *inbuf; | |
1596 | int count; | |
1597 | } UnmapCBData; | |
1598 | ||
5fd2b563 PB |
1599 | static void scsi_unmap_complete(void *opaque, int ret); |
1600 | ||
1601 | static void scsi_unmap_complete_noio(UnmapCBData *data, int ret) | |
5222aaf2 | 1602 | { |
5222aaf2 PB |
1603 | SCSIDiskReq *r = data->r; |
1604 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); | |
1605 | uint64_t sector_num; | |
5bb0b62e | 1606 | uint32_t nb_sectors; |
5222aaf2 | 1607 | |
5fd2b563 | 1608 | assert(r->req.aiocb == NULL); |
5b956f41 | 1609 | if (scsi_disk_req_check_error(r, ret, false)) { |
d0242ead PB |
1610 | goto done; |
1611 | } | |
1612 | ||
d0242ead | 1613 | if (data->count > 0) { |
5222aaf2 PB |
1614 | sector_num = ldq_be_p(&data->inbuf[0]); |
1615 | nb_sectors = ldl_be_p(&data->inbuf[8]) & 0xffffffffULL; | |
444bc908 | 1616 | if (!check_lba_range(s, sector_num, nb_sectors)) { |
5222aaf2 PB |
1617 | scsi_check_condition(r, SENSE_CODE(LBA_OUT_OF_RANGE)); |
1618 | goto done; | |
1619 | } | |
1620 | ||
1c6c4bb7 EB |
1621 | r->req.aiocb = blk_aio_pdiscard(s->qdev.conf.blk, |
1622 | sector_num * s->qdev.blocksize, | |
1623 | nb_sectors * s->qdev.blocksize, | |
1624 | scsi_unmap_complete, data); | |
5222aaf2 PB |
1625 | data->count--; |
1626 | data->inbuf += 16; | |
1627 | return; | |
1628 | } | |
1629 | ||
d0242ead PB |
1630 | scsi_req_complete(&r->req, GOOD); |
1631 | ||
5222aaf2 | 1632 | done: |
3df9caf8 | 1633 | scsi_req_unref(&r->req); |
5222aaf2 PB |
1634 | g_free(data); |
1635 | } | |
1636 | ||
5fd2b563 PB |
1637 | static void scsi_unmap_complete(void *opaque, int ret) |
1638 | { | |
1639 | UnmapCBData *data = opaque; | |
1640 | SCSIDiskReq *r = data->r; | |
b9e413dd | 1641 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); |
5fd2b563 PB |
1642 | |
1643 | assert(r->req.aiocb != NULL); | |
1644 | r->req.aiocb = NULL; | |
1645 | ||
b9e413dd | 1646 | aio_context_acquire(blk_get_aio_context(s->qdev.conf.blk)); |
5fd2b563 | 1647 | scsi_unmap_complete_noio(data, ret); |
b9e413dd | 1648 | aio_context_release(blk_get_aio_context(s->qdev.conf.blk)); |
5fd2b563 PB |
1649 | } |
1650 | ||
5222aaf2 PB |
1651 | static void scsi_disk_emulate_unmap(SCSIDiskReq *r, uint8_t *inbuf) |
1652 | { | |
c5fd1fb0 | 1653 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); |
5222aaf2 PB |
1654 | uint8_t *p = inbuf; |
1655 | int len = r->req.cmd.xfer; | |
1656 | UnmapCBData *data; | |
1657 | ||
823bd739 PB |
1658 | /* Reject ANCHOR=1. */ |
1659 | if (r->req.cmd.buf[1] & 0x1) { | |
1660 | goto invalid_field; | |
1661 | } | |
1662 | ||
5222aaf2 PB |
1663 | if (len < 8) { |
1664 | goto invalid_param_len; | |
1665 | } | |
1666 | if (len < lduw_be_p(&p[0]) + 2) { | |
1667 | goto invalid_param_len; | |
1668 | } | |
1669 | if (len < lduw_be_p(&p[2]) + 8) { | |
1670 | goto invalid_param_len; | |
1671 | } | |
1672 | if (lduw_be_p(&p[2]) & 15) { | |
1673 | goto invalid_param_len; | |
1674 | } | |
1675 | ||
4be74634 | 1676 | if (blk_is_read_only(s->qdev.conf.blk)) { |
c5fd1fb0 PB |
1677 | scsi_check_condition(r, SENSE_CODE(WRITE_PROTECTED)); |
1678 | return; | |
1679 | } | |
1680 | ||
5222aaf2 PB |
1681 | data = g_new0(UnmapCBData, 1); |
1682 | data->r = r; | |
1683 | data->inbuf = &p[8]; | |
1684 | data->count = lduw_be_p(&p[2]) >> 4; | |
1685 | ||
1686 | /* The matching unref is in scsi_unmap_complete, before data is freed. */ | |
1687 | scsi_req_ref(&r->req); | |
5fd2b563 | 1688 | scsi_unmap_complete_noio(data, 0); |
5222aaf2 PB |
1689 | return; |
1690 | ||
1691 | invalid_param_len: | |
1692 | scsi_check_condition(r, SENSE_CODE(INVALID_PARAM_LEN)); | |
823bd739 PB |
1693 | return; |
1694 | ||
1695 | invalid_field: | |
1696 | scsi_check_condition(r, SENSE_CODE(INVALID_FIELD)); | |
5222aaf2 PB |
1697 | } |
1698 | ||
84f94a9a PB |
1699 | typedef struct WriteSameCBData { |
1700 | SCSIDiskReq *r; | |
1701 | int64_t sector; | |
1702 | int nb_sectors; | |
1703 | QEMUIOVector qiov; | |
1704 | struct iovec iov; | |
1705 | } WriteSameCBData; | |
1706 | ||
1707 | static void scsi_write_same_complete(void *opaque, int ret) | |
1708 | { | |
1709 | WriteSameCBData *data = opaque; | |
1710 | SCSIDiskReq *r = data->r; | |
1711 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); | |
1712 | ||
1713 | assert(r->req.aiocb != NULL); | |
1714 | r->req.aiocb = NULL; | |
b9e413dd | 1715 | aio_context_acquire(blk_get_aio_context(s->qdev.conf.blk)); |
5b956f41 | 1716 | if (scsi_disk_req_check_error(r, ret, true)) { |
84f94a9a PB |
1717 | goto done; |
1718 | } | |
1719 | ||
d7628080 AG |
1720 | block_acct_done(blk_get_stats(s->qdev.conf.blk), &r->acct); |
1721 | ||
84f94a9a PB |
1722 | data->nb_sectors -= data->iov.iov_len / 512; |
1723 | data->sector += data->iov.iov_len / 512; | |
1724 | data->iov.iov_len = MIN(data->nb_sectors * 512, data->iov.iov_len); | |
1725 | if (data->iov.iov_len) { | |
4be74634 | 1726 | block_acct_start(blk_get_stats(s->qdev.conf.blk), &r->acct, |
5366d0c8 | 1727 | data->iov.iov_len, BLOCK_ACCT_WRITE); |
03c90063 EB |
1728 | /* Reinitialize qiov, to handle unaligned WRITE SAME request |
1729 | * where final qiov may need smaller size */ | |
a56537a1 | 1730 | qemu_iovec_init_external(&data->qiov, &data->iov, 1); |
03c90063 EB |
1731 | r->req.aiocb = blk_aio_pwritev(s->qdev.conf.blk, |
1732 | data->sector << BDRV_SECTOR_BITS, | |
1733 | &data->qiov, 0, | |
1734 | scsi_write_same_complete, data); | |
24355b79 | 1735 | aio_context_release(blk_get_aio_context(s->qdev.conf.blk)); |
84f94a9a PB |
1736 | return; |
1737 | } | |
1738 | ||
1739 | scsi_req_complete(&r->req, GOOD); | |
1740 | ||
1741 | done: | |
3df9caf8 | 1742 | scsi_req_unref(&r->req); |
84f94a9a PB |
1743 | qemu_vfree(data->iov.iov_base); |
1744 | g_free(data); | |
b9e413dd | 1745 | aio_context_release(blk_get_aio_context(s->qdev.conf.blk)); |
84f94a9a PB |
1746 | } |
1747 | ||
1748 | static void scsi_disk_emulate_write_same(SCSIDiskReq *r, uint8_t *inbuf) | |
1749 | { | |
1750 | SCSIRequest *req = &r->req; | |
1751 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, req->dev); | |
1894df02 | 1752 | uint32_t nb_sectors = scsi_data_cdb_xfer(r->req.cmd.buf); |
84f94a9a PB |
1753 | WriteSameCBData *data; |
1754 | uint8_t *buf; | |
1755 | int i; | |
1756 | ||
1757 | /* Fail if PBDATA=1 or LBDATA=1 or ANCHOR=1. */ | |
1758 | if (nb_sectors == 0 || (req->cmd.buf[1] & 0x16)) { | |
1759 | scsi_check_condition(r, SENSE_CODE(INVALID_FIELD)); | |
1760 | return; | |
1761 | } | |
1762 | ||
4be74634 | 1763 | if (blk_is_read_only(s->qdev.conf.blk)) { |
84f94a9a PB |
1764 | scsi_check_condition(r, SENSE_CODE(WRITE_PROTECTED)); |
1765 | return; | |
1766 | } | |
1767 | if (!check_lba_range(s, r->req.cmd.lba, nb_sectors)) { | |
1768 | scsi_check_condition(r, SENSE_CODE(LBA_OUT_OF_RANGE)); | |
1769 | return; | |
1770 | } | |
1771 | ||
4397a018 | 1772 | if ((req->cmd.buf[1] & 0x1) || buffer_is_zero(inbuf, s->qdev.blocksize)) { |
84f94a9a PB |
1773 | int flags = (req->cmd.buf[1] & 0x8) ? BDRV_REQ_MAY_UNMAP : 0; |
1774 | ||
1775 | /* The request is used as the AIO opaque value, so add a ref. */ | |
1776 | scsi_req_ref(&r->req); | |
4be74634 | 1777 | block_acct_start(blk_get_stats(s->qdev.conf.blk), &r->acct, |
5366d0c8 BC |
1778 | nb_sectors * s->qdev.blocksize, |
1779 | BLOCK_ACCT_WRITE); | |
d004bd52 | 1780 | r->req.aiocb = blk_aio_pwrite_zeroes(s->qdev.conf.blk, |
983a1600 EB |
1781 | r->req.cmd.lba * s->qdev.blocksize, |
1782 | nb_sectors * s->qdev.blocksize, | |
4be74634 | 1783 | flags, scsi_aio_complete, r); |
84f94a9a PB |
1784 | return; |
1785 | } | |
1786 | ||
1787 | data = g_new0(WriteSameCBData, 1); | |
1788 | data->r = r; | |
1789 | data->sector = r->req.cmd.lba * (s->qdev.blocksize / 512); | |
1790 | data->nb_sectors = nb_sectors * (s->qdev.blocksize / 512); | |
1791 | data->iov.iov_len = MIN(data->nb_sectors * 512, SCSI_WRITE_SAME_MAX); | |
4be74634 MA |
1792 | data->iov.iov_base = buf = blk_blockalign(s->qdev.conf.blk, |
1793 | data->iov.iov_len); | |
84f94a9a PB |
1794 | qemu_iovec_init_external(&data->qiov, &data->iov, 1); |
1795 | ||
1796 | for (i = 0; i < data->iov.iov_len; i += s->qdev.blocksize) { | |
1797 | memcpy(&buf[i], inbuf, s->qdev.blocksize); | |
1798 | } | |
1799 | ||
1800 | scsi_req_ref(&r->req); | |
4be74634 | 1801 | block_acct_start(blk_get_stats(s->qdev.conf.blk), &r->acct, |
5366d0c8 | 1802 | data->iov.iov_len, BLOCK_ACCT_WRITE); |
03c90063 EB |
1803 | r->req.aiocb = blk_aio_pwritev(s->qdev.conf.blk, |
1804 | data->sector << BDRV_SECTOR_BITS, | |
1805 | &data->qiov, 0, | |
1806 | scsi_write_same_complete, data); | |
84f94a9a PB |
1807 | } |
1808 | ||
314a3299 PB |
1809 | static void scsi_disk_emulate_write_data(SCSIRequest *req) |
1810 | { | |
af6d510d PB |
1811 | SCSIDiskReq *r = DO_UPCAST(SCSIDiskReq, req, req); |
1812 | ||
1813 | if (r->iov.iov_len) { | |
1814 | int buflen = r->iov.iov_len; | |
59ee9500 | 1815 | trace_scsi_disk_emulate_write_data(buflen); |
af6d510d PB |
1816 | r->iov.iov_len = 0; |
1817 | scsi_req_data(&r->req, buflen); | |
1818 | return; | |
1819 | } | |
1820 | ||
1821 | switch (req->cmd.buf[0]) { | |
1822 | case MODE_SELECT: | |
1823 | case MODE_SELECT_10: | |
1824 | /* This also clears the sense buffer for REQUEST SENSE. */ | |
380feaff | 1825 | scsi_disk_emulate_mode_select(r, r->iov.iov_base); |
af6d510d PB |
1826 | break; |
1827 | ||
5222aaf2 PB |
1828 | case UNMAP: |
1829 | scsi_disk_emulate_unmap(r, r->iov.iov_base); | |
1830 | break; | |
1831 | ||
d97e7730 PB |
1832 | case VERIFY_10: |
1833 | case VERIFY_12: | |
1834 | case VERIFY_16: | |
1835 | if (r->req.status == -1) { | |
1836 | scsi_check_condition(r, SENSE_CODE(INVALID_FIELD)); | |
1837 | } | |
1838 | break; | |
1839 | ||
84f94a9a PB |
1840 | case WRITE_SAME_10: |
1841 | case WRITE_SAME_16: | |
1842 | scsi_disk_emulate_write_same(r, r->iov.iov_base); | |
1843 | break; | |
d97e7730 | 1844 | |
af6d510d PB |
1845 | default: |
1846 | abort(); | |
1847 | } | |
314a3299 PB |
1848 | } |
1849 | ||
b08d0ea0 | 1850 | static int32_t scsi_disk_emulate_command(SCSIRequest *req, uint8_t *buf) |
aa5dbdc1 | 1851 | { |
b08d0ea0 | 1852 | SCSIDiskReq *r = DO_UPCAST(SCSIDiskReq, req, req); |
e7e25e32 | 1853 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, req->dev); |
e7e25e32 | 1854 | uint64_t nb_sectors; |
7285477a | 1855 | uint8_t *outbuf; |
af6d510d | 1856 | int buflen; |
aa5dbdc1 | 1857 | |
b08d0ea0 PB |
1858 | switch (req->cmd.buf[0]) { |
1859 | case INQUIRY: | |
1860 | case MODE_SENSE: | |
1861 | case MODE_SENSE_10: | |
1862 | case RESERVE: | |
1863 | case RESERVE_10: | |
1864 | case RELEASE: | |
1865 | case RELEASE_10: | |
1866 | case START_STOP: | |
1867 | case ALLOW_MEDIUM_REMOVAL: | |
1868 | case GET_CONFIGURATION: | |
1869 | case GET_EVENT_STATUS_NOTIFICATION: | |
1870 | case MECHANISM_STATUS: | |
1871 | case REQUEST_SENSE: | |
1872 | break; | |
1873 | ||
1874 | default: | |
cd723b85 | 1875 | if (!blk_is_available(s->qdev.conf.blk)) { |
b08d0ea0 PB |
1876 | scsi_check_condition(r, SENSE_CODE(NO_MEDIUM)); |
1877 | return 0; | |
1878 | } | |
1879 | break; | |
1880 | } | |
1881 | ||
c8dcb531 PB |
1882 | /* |
1883 | * FIXME: we shouldn't return anything bigger than 4k, but the code | |
1884 | * requires the buffer to be as big as req->cmd.xfer in several | |
1885 | * places. So, do not allow CDBs with a very large ALLOCATION | |
1886 | * LENGTH. The real fix would be to modify scsi_read_data and | |
1887 | * dma_buf_read, so that they return data beyond the buflen | |
1888 | * as all zeros. | |
1889 | */ | |
1890 | if (req->cmd.xfer > 65536) { | |
1891 | goto illegal_request; | |
1892 | } | |
1893 | r->buflen = MAX(4096, req->cmd.xfer); | |
1894 | ||
7285477a | 1895 | if (!r->iov.iov_base) { |
4be74634 | 1896 | r->iov.iov_base = blk_blockalign(s->qdev.conf.blk, r->buflen); |
7285477a PB |
1897 | } |
1898 | ||
af6d510d | 1899 | buflen = req->cmd.xfer; |
7285477a | 1900 | outbuf = r->iov.iov_base; |
c8dcb531 | 1901 | memset(outbuf, 0, r->buflen); |
aa5dbdc1 GH |
1902 | switch (req->cmd.buf[0]) { |
1903 | case TEST_UNIT_READY: | |
cd723b85 | 1904 | assert(blk_is_available(s->qdev.conf.blk)); |
5f71d32f | 1905 | break; |
0b06c059 GH |
1906 | case INQUIRY: |
1907 | buflen = scsi_disk_emulate_inquiry(req, outbuf); | |
f01b5931 | 1908 | if (buflen < 0) { |
0b06c059 | 1909 | goto illegal_request; |
f01b5931 | 1910 | } |
5f71d32f | 1911 | break; |
ebddfcbe GH |
1912 | case MODE_SENSE: |
1913 | case MODE_SENSE_10: | |
cfc606da | 1914 | buflen = scsi_disk_emulate_mode_sense(r, outbuf); |
f01b5931 | 1915 | if (buflen < 0) { |
ebddfcbe | 1916 | goto illegal_request; |
f01b5931 | 1917 | } |
ebddfcbe | 1918 | break; |
02880f43 GH |
1919 | case READ_TOC: |
1920 | buflen = scsi_disk_emulate_read_toc(req, outbuf); | |
f01b5931 | 1921 | if (buflen < 0) { |
02880f43 | 1922 | goto illegal_request; |
f01b5931 | 1923 | } |
02880f43 | 1924 | break; |
3d53ba18 | 1925 | case RESERVE: |
f01b5931 | 1926 | if (req->cmd.buf[1] & 1) { |
3d53ba18 | 1927 | goto illegal_request; |
f01b5931 | 1928 | } |
3d53ba18 GH |
1929 | break; |
1930 | case RESERVE_10: | |
f01b5931 | 1931 | if (req->cmd.buf[1] & 3) { |
3d53ba18 | 1932 | goto illegal_request; |
f01b5931 | 1933 | } |
3d53ba18 GH |
1934 | break; |
1935 | case RELEASE: | |
f01b5931 | 1936 | if (req->cmd.buf[1] & 1) { |
3d53ba18 | 1937 | goto illegal_request; |
f01b5931 | 1938 | } |
3d53ba18 GH |
1939 | break; |
1940 | case RELEASE_10: | |
f01b5931 | 1941 | if (req->cmd.buf[1] & 3) { |
3d53ba18 | 1942 | goto illegal_request; |
f01b5931 | 1943 | } |
3d53ba18 | 1944 | break; |
8d3628ff | 1945 | case START_STOP: |
68bb01f3 | 1946 | if (scsi_disk_emulate_start_stop(r) < 0) { |
b08d0ea0 | 1947 | return 0; |
68bb01f3 | 1948 | } |
5f71d32f | 1949 | break; |
c68b9f34 | 1950 | case ALLOW_MEDIUM_REMOVAL: |
81b1008d | 1951 | s->tray_locked = req->cmd.buf[4] & 1; |
4be74634 | 1952 | blk_lock_medium(s->qdev.conf.blk, req->cmd.buf[4] & 1); |
5f71d32f | 1953 | break; |
5e30a07d | 1954 | case READ_CAPACITY_10: |
e7e25e32 | 1955 | /* The normal LEN field for this command is zero. */ |
5f71d32f | 1956 | memset(outbuf, 0, 8); |
4be74634 | 1957 | blk_get_geometry(s->qdev.conf.blk, &nb_sectors); |
f01b5931 | 1958 | if (!nb_sectors) { |
9bcaf4fe | 1959 | scsi_check_condition(r, SENSE_CODE(LUN_NOT_READY)); |
0369f06f | 1960 | return 0; |
f01b5931 | 1961 | } |
7cec78b6 PB |
1962 | if ((req->cmd.buf[8] & 1) == 0 && req->cmd.lba) { |
1963 | goto illegal_request; | |
1964 | } | |
69377307 | 1965 | nb_sectors /= s->qdev.blocksize / 512; |
e7e25e32 GH |
1966 | /* Returned value is the address of the last sector. */ |
1967 | nb_sectors--; | |
1968 | /* Remember the new size for read/write sanity checking. */ | |
7877903a | 1969 | s->qdev.max_lba = nb_sectors; |
e7e25e32 | 1970 | /* Clip to 2TB, instead of returning capacity modulo 2TB. */ |
f01b5931 | 1971 | if (nb_sectors > UINT32_MAX) { |
e7e25e32 | 1972 | nb_sectors = UINT32_MAX; |
f01b5931 | 1973 | } |
e7e25e32 GH |
1974 | outbuf[0] = (nb_sectors >> 24) & 0xff; |
1975 | outbuf[1] = (nb_sectors >> 16) & 0xff; | |
1976 | outbuf[2] = (nb_sectors >> 8) & 0xff; | |
1977 | outbuf[3] = nb_sectors & 0xff; | |
1978 | outbuf[4] = 0; | |
1979 | outbuf[5] = 0; | |
69377307 | 1980 | outbuf[6] = s->qdev.blocksize >> 8; |
e7e25e32 | 1981 | outbuf[7] = 0; |
5f71d32f | 1982 | break; |
f3b338ef PB |
1983 | case REQUEST_SENSE: |
1984 | /* Just return "NO SENSE". */ | |
37b6045c PB |
1985 | buflen = scsi_convert_sense(NULL, 0, outbuf, r->buflen, |
1986 | (req->cmd.buf[1] & 1) == 0); | |
c8dcb531 PB |
1987 | if (buflen < 0) { |
1988 | goto illegal_request; | |
1989 | } | |
f3b338ef | 1990 | break; |
b6c251ab PB |
1991 | case MECHANISM_STATUS: |
1992 | buflen = scsi_emulate_mechanism_status(s, outbuf); | |
1993 | if (buflen < 0) { | |
1994 | goto illegal_request; | |
1995 | } | |
1996 | break; | |
38215553 | 1997 | case GET_CONFIGURATION: |
430ee2f2 | 1998 | buflen = scsi_get_configuration(s, outbuf); |
b6c251ab PB |
1999 | if (buflen < 0) { |
2000 | goto illegal_request; | |
2001 | } | |
2002 | break; | |
2003 | case GET_EVENT_STATUS_NOTIFICATION: | |
2004 | buflen = scsi_get_event_status_notification(s, r, outbuf); | |
2005 | if (buflen < 0) { | |
2006 | goto illegal_request; | |
2007 | } | |
2008 | break; | |
1a4f0c3a PB |
2009 | case READ_DISC_INFORMATION: |
2010 | buflen = scsi_read_disc_information(s, r, outbuf); | |
2011 | if (buflen < 0) { | |
2012 | goto illegal_request; | |
2013 | } | |
2014 | break; | |
b6c251ab PB |
2015 | case READ_DVD_STRUCTURE: |
2016 | buflen = scsi_read_dvd_structure(s, r, outbuf); | |
2017 | if (buflen < 0) { | |
2018 | goto illegal_request; | |
2019 | } | |
38215553 | 2020 | break; |
f6515262 | 2021 | case SERVICE_ACTION_IN_16: |
5dd90e2a | 2022 | /* Service Action In subcommands. */ |
f6515262 | 2023 | if ((req->cmd.buf[1] & 31) == SAI_READ_CAPACITY_16) { |
59ee9500 | 2024 | trace_scsi_disk_emulate_command_SAI_16(); |
5dd90e2a | 2025 | memset(outbuf, 0, req->cmd.xfer); |
4be74634 | 2026 | blk_get_geometry(s->qdev.conf.blk, &nb_sectors); |
f01b5931 | 2027 | if (!nb_sectors) { |
9bcaf4fe | 2028 | scsi_check_condition(r, SENSE_CODE(LUN_NOT_READY)); |
0369f06f | 2029 | return 0; |
f01b5931 | 2030 | } |
7cec78b6 PB |
2031 | if ((req->cmd.buf[14] & 1) == 0 && req->cmd.lba) { |
2032 | goto illegal_request; | |
2033 | } | |
69377307 | 2034 | nb_sectors /= s->qdev.blocksize / 512; |
5dd90e2a GH |
2035 | /* Returned value is the address of the last sector. */ |
2036 | nb_sectors--; | |
2037 | /* Remember the new size for read/write sanity checking. */ | |
7877903a | 2038 | s->qdev.max_lba = nb_sectors; |
5dd90e2a GH |
2039 | outbuf[0] = (nb_sectors >> 56) & 0xff; |
2040 | outbuf[1] = (nb_sectors >> 48) & 0xff; | |
2041 | outbuf[2] = (nb_sectors >> 40) & 0xff; | |
2042 | outbuf[3] = (nb_sectors >> 32) & 0xff; | |
2043 | outbuf[4] = (nb_sectors >> 24) & 0xff; | |
2044 | outbuf[5] = (nb_sectors >> 16) & 0xff; | |
2045 | outbuf[6] = (nb_sectors >> 8) & 0xff; | |
2046 | outbuf[7] = nb_sectors & 0xff; | |
2047 | outbuf[8] = 0; | |
2048 | outbuf[9] = 0; | |
69377307 | 2049 | outbuf[10] = s->qdev.blocksize >> 8; |
5dd90e2a | 2050 | outbuf[11] = 0; |
ee3659e3 CH |
2051 | outbuf[12] = 0; |
2052 | outbuf[13] = get_physical_block_exp(&s->qdev.conf); | |
ea3bd56f CH |
2053 | |
2054 | /* set TPE bit if the format supports discard */ | |
2055 | if (s->qdev.conf.discard_granularity) { | |
2056 | outbuf[14] = 0x80; | |
2057 | } | |
2058 | ||
5dd90e2a | 2059 | /* Protection, exponent and lowest lba field left blank. */ |
5dd90e2a GH |
2060 | break; |
2061 | } | |
59ee9500 | 2062 | trace_scsi_disk_emulate_command_SAI_unsupported(); |
5dd90e2a | 2063 | goto illegal_request; |
101aa85f PB |
2064 | case SYNCHRONIZE_CACHE: |
2065 | /* The request is used as the AIO opaque value, so add a ref. */ | |
2066 | scsi_req_ref(&r->req); | |
4be74634 | 2067 | block_acct_start(blk_get_stats(s->qdev.conf.blk), &r->acct, 0, |
5366d0c8 | 2068 | BLOCK_ACCT_FLUSH); |
4be74634 | 2069 | r->req.aiocb = blk_aio_flush(s->qdev.conf.blk, scsi_aio_complete, r); |
101aa85f PB |
2070 | return 0; |
2071 | case SEEK_10: | |
59ee9500 | 2072 | trace_scsi_disk_emulate_command_SEEK_10(r->req.cmd.lba); |
101aa85f PB |
2073 | if (r->req.cmd.lba > s->qdev.max_lba) { |
2074 | goto illegal_lba; | |
2075 | } | |
2076 | break; | |
101aa85f | 2077 | case MODE_SELECT: |
59ee9500 | 2078 | trace_scsi_disk_emulate_command_MODE_SELECT(r->req.cmd.xfer); |
101aa85f PB |
2079 | break; |
2080 | case MODE_SELECT_10: | |
59ee9500 | 2081 | trace_scsi_disk_emulate_command_MODE_SELECT_10(r->req.cmd.xfer); |
101aa85f | 2082 | break; |
5222aaf2 | 2083 | case UNMAP: |
59ee9500 | 2084 | trace_scsi_disk_emulate_command_UNMAP(r->req.cmd.xfer); |
5222aaf2 | 2085 | break; |
d97e7730 PB |
2086 | case VERIFY_10: |
2087 | case VERIFY_12: | |
2088 | case VERIFY_16: | |
59ee9500 | 2089 | trace_scsi_disk_emulate_command_VERIFY((req->cmd.buf[1] >> 1) & 3); |
d97e7730 PB |
2090 | if (req->cmd.buf[1] & 6) { |
2091 | goto illegal_request; | |
2092 | } | |
2093 | break; | |
101aa85f | 2094 | case WRITE_SAME_10: |
101aa85f | 2095 | case WRITE_SAME_16: |
59ee9500 LV |
2096 | trace_scsi_disk_emulate_command_WRITE_SAME( |
2097 | req->cmd.buf[0] == WRITE_SAME_10 ? 10 : 16, r->req.cmd.xfer); | |
84f94a9a | 2098 | break; |
aa5dbdc1 | 2099 | default: |
59ee9500 LV |
2100 | trace_scsi_disk_emulate_command_UNKNOWN(buf[0], |
2101 | scsi_command_name(buf[0])); | |
b45ef674 | 2102 | scsi_check_condition(r, SENSE_CODE(INVALID_OPCODE)); |
b08d0ea0 | 2103 | return 0; |
aa5dbdc1 | 2104 | } |
314a3299 | 2105 | assert(!r->req.aiocb); |
c8dcb531 | 2106 | r->iov.iov_len = MIN(r->buflen, req->cmd.xfer); |
b08d0ea0 PB |
2107 | if (r->iov.iov_len == 0) { |
2108 | scsi_req_complete(&r->req, GOOD); | |
2109 | } | |
af6d510d PB |
2110 | if (r->req.cmd.mode == SCSI_XFER_TO_DEV) { |
2111 | assert(r->iov.iov_len == req->cmd.xfer); | |
2112 | return -r->iov.iov_len; | |
2113 | } else { | |
2114 | return r->iov.iov_len; | |
2115 | } | |
aa5dbdc1 | 2116 | |
aa5dbdc1 | 2117 | illegal_request: |
cfc606da PB |
2118 | if (r->req.status == -1) { |
2119 | scsi_check_condition(r, SENSE_CODE(INVALID_FIELD)); | |
2120 | } | |
b08d0ea0 | 2121 | return 0; |
101aa85f PB |
2122 | |
2123 | illegal_lba: | |
2124 | scsi_check_condition(r, SENSE_CODE(LBA_OUT_OF_RANGE)); | |
2125 | return 0; | |
aa5dbdc1 GH |
2126 | } |
2127 | ||
2e5d83bb PB |
2128 | /* Execute a scsi command. Returns the length of the data expected by the |
2129 | command. This will be Positive for data transfers from the device | |
2130 | (eg. disk reads), negative for transfers to the device (eg. disk writes), | |
2131 | and zero if the command does not transfer any data. */ | |
2132 | ||
b08d0ea0 | 2133 | static int32_t scsi_disk_dma_command(SCSIRequest *req, uint8_t *buf) |
2e5d83bb | 2134 | { |
5c6c0e51 HR |
2135 | SCSIDiskReq *r = DO_UPCAST(SCSIDiskReq, req, req); |
2136 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, req->dev); | |
94f8ba11 | 2137 | SCSIDiskClass *sdc = (SCSIDiskClass *) object_get_class(OBJECT(s)); |
e93176d5 | 2138 | uint32_t len; |
a917d384 | 2139 | uint8_t command; |
a917d384 PB |
2140 | |
2141 | command = buf[0]; | |
aa5dbdc1 | 2142 | |
cd723b85 | 2143 | if (!blk_is_available(s->qdev.conf.blk)) { |
b08d0ea0 PB |
2144 | scsi_check_condition(r, SENSE_CODE(NO_MEDIUM)); |
2145 | return 0; | |
9bcaf4fe PB |
2146 | } |
2147 | ||
1894df02 | 2148 | len = scsi_data_cdb_xfer(r->req.cmd.buf); |
a917d384 | 2149 | switch (command) { |
ebf46023 GH |
2150 | case READ_6: |
2151 | case READ_10: | |
bd536cf3 GH |
2152 | case READ_12: |
2153 | case READ_16: | |
59ee9500 | 2154 | trace_scsi_disk_dma_command_READ(r->req.cmd.lba, len); |
2343be0d PB |
2155 | /* Protection information is not supported. For SCSI versions 2 and |
2156 | * older (as determined by snooping the guest's INQUIRY commands), | |
2157 | * there is no RD/WR/VRPROTECT, so skip this check in these versions. | |
2158 | */ | |
2159 | if (s->qdev.scsi_version > 2 && (r->req.cmd.buf[1] & 0xe0)) { | |
96bdbbab RS |
2160 | goto illegal_request; |
2161 | } | |
444bc908 | 2162 | if (!check_lba_range(s, r->req.cmd.lba, len)) { |
274fb0e1 | 2163 | goto illegal_lba; |
f01b5931 | 2164 | } |
69377307 PB |
2165 | r->sector = r->req.cmd.lba * (s->qdev.blocksize / 512); |
2166 | r->sector_count = len * (s->qdev.blocksize / 512); | |
2e5d83bb | 2167 | break; |
ebf46023 GH |
2168 | case WRITE_6: |
2169 | case WRITE_10: | |
bd536cf3 GH |
2170 | case WRITE_12: |
2171 | case WRITE_16: | |
5e30a07d | 2172 | case WRITE_VERIFY_10: |
ebef0bbb BK |
2173 | case WRITE_VERIFY_12: |
2174 | case WRITE_VERIFY_16: | |
4be74634 | 2175 | if (blk_is_read_only(s->qdev.conf.blk)) { |
6a8a685c RS |
2176 | scsi_check_condition(r, SENSE_CODE(WRITE_PROTECTED)); |
2177 | return 0; | |
2178 | } | |
59ee9500 | 2179 | trace_scsi_disk_dma_command_WRITE( |
2dd791b6 HR |
2180 | (command & 0xe) == 0xe ? "And Verify " : "", |
2181 | r->req.cmd.lba, len); | |
4f04560b | 2182 | /* fall through */ |
166dbda7 PB |
2183 | case VERIFY_10: |
2184 | case VERIFY_12: | |
2185 | case VERIFY_16: | |
2186 | /* We get here only for BYTCHK == 0x01 and only for scsi-block. | |
2187 | * As far as DMA is concerned, we can treat it the same as a write; | |
2188 | * scsi_block_do_sgio will send VERIFY commands. | |
2189 | */ | |
2343be0d | 2190 | if (s->qdev.scsi_version > 2 && (r->req.cmd.buf[1] & 0xe0)) { |
96bdbbab RS |
2191 | goto illegal_request; |
2192 | } | |
444bc908 | 2193 | if (!check_lba_range(s, r->req.cmd.lba, len)) { |
274fb0e1 | 2194 | goto illegal_lba; |
f01b5931 | 2195 | } |
69377307 PB |
2196 | r->sector = r->req.cmd.lba * (s->qdev.blocksize / 512); |
2197 | r->sector_count = len * (s->qdev.blocksize / 512); | |
2e5d83bb | 2198 | break; |
101aa85f | 2199 | default: |
b08d0ea0 | 2200 | abort(); |
96bdbbab RS |
2201 | illegal_request: |
2202 | scsi_check_condition(r, SENSE_CODE(INVALID_FIELD)); | |
2203 | return 0; | |
274fb0e1 | 2204 | illegal_lba: |
b45ef674 | 2205 | scsi_check_condition(r, SENSE_CODE(LBA_OUT_OF_RANGE)); |
274fb0e1 | 2206 | return 0; |
2e5d83bb | 2207 | } |
94f8ba11 | 2208 | r->need_fua_emulation = sdc->need_fua_emulation(&r->req.cmd); |
b08d0ea0 | 2209 | if (r->sector_count == 0) { |
b45ef674 | 2210 | scsi_req_complete(&r->req, GOOD); |
a917d384 | 2211 | } |
b08d0ea0 | 2212 | assert(r->iov.iov_len == 0); |
efb9ee02 | 2213 | if (r->req.cmd.mode == SCSI_XFER_TO_DEV) { |
b08d0ea0 | 2214 | return -r->sector_count * 512; |
a917d384 | 2215 | } else { |
b08d0ea0 | 2216 | return r->sector_count * 512; |
2e5d83bb | 2217 | } |
2e5d83bb PB |
2218 | } |
2219 | ||
e9447f35 JK |
2220 | static void scsi_disk_reset(DeviceState *dev) |
2221 | { | |
2222 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev.qdev, dev); | |
2223 | uint64_t nb_sectors; | |
2224 | ||
c7b48872 | 2225 | scsi_device_purge_requests(&s->qdev, SENSE_CODE(RESET)); |
e9447f35 | 2226 | |
4be74634 | 2227 | blk_get_geometry(s->qdev.conf.blk, &nb_sectors); |
69377307 | 2228 | nb_sectors /= s->qdev.blocksize / 512; |
e9447f35 JK |
2229 | if (nb_sectors) { |
2230 | nb_sectors--; | |
2231 | } | |
7877903a | 2232 | s->qdev.max_lba = nb_sectors; |
7721c7f7 PH |
2233 | /* reset tray statuses */ |
2234 | s->tray_locked = 0; | |
2235 | s->tray_open = 0; | |
2343be0d PB |
2236 | |
2237 | s->qdev.scsi_version = s->qdev.default_scsi_version; | |
e9447f35 JK |
2238 | } |
2239 | ||
aaebacef PB |
2240 | static void scsi_disk_resize_cb(void *opaque) |
2241 | { | |
2242 | SCSIDiskState *s = opaque; | |
2243 | ||
2244 | /* SPC lists this sense code as available only for | |
2245 | * direct-access devices. | |
2246 | */ | |
2247 | if (s->qdev.type == TYPE_DISK) { | |
53200fad | 2248 | scsi_device_report_change(&s->qdev, SENSE_CODE(CAPACITY_CHANGED)); |
aaebacef PB |
2249 | } |
2250 | } | |
2251 | ||
39829a01 | 2252 | static void scsi_cd_change_media_cb(void *opaque, bool load, Error **errp) |
2c6942fa | 2253 | { |
8a9c16f6 PB |
2254 | SCSIDiskState *s = opaque; |
2255 | ||
2256 | /* | |
2257 | * When a CD gets changed, we have to report an ejected state and | |
2258 | * then a loaded state to guests so that they detect tray | |
2259 | * open/close and media change events. Guests that do not use | |
2260 | * GET_EVENT_STATUS_NOTIFICATION to detect such tray open/close | |
2261 | * states rely on this behavior. | |
2262 | * | |
2263 | * media_changed governs the state machine used for unit attention | |
2264 | * report. media_event is used by GET EVENT STATUS NOTIFICATION. | |
2265 | */ | |
2266 | s->media_changed = load; | |
2267 | s->tray_open = !load; | |
e48e84ea | 2268 | scsi_device_set_ua(&s->qdev, SENSE_CODE(UNIT_ATTENTION_NO_MEDIUM)); |
3c2f7c12 | 2269 | s->media_event = true; |
4480de19 PB |
2270 | s->eject_request = false; |
2271 | } | |
2272 | ||
2273 | static void scsi_cd_eject_request_cb(void *opaque, bool force) | |
2274 | { | |
2275 | SCSIDiskState *s = opaque; | |
2276 | ||
2277 | s->eject_request = true; | |
2278 | if (force) { | |
2279 | s->tray_locked = false; | |
2280 | } | |
2c6942fa MA |
2281 | } |
2282 | ||
e4def80b MA |
2283 | static bool scsi_cd_is_tray_open(void *opaque) |
2284 | { | |
2285 | return ((SCSIDiskState *)opaque)->tray_open; | |
2286 | } | |
2287 | ||
f107639a MA |
2288 | static bool scsi_cd_is_medium_locked(void *opaque) |
2289 | { | |
2290 | return ((SCSIDiskState *)opaque)->tray_locked; | |
2291 | } | |
2292 | ||
aaebacef | 2293 | static const BlockDevOps scsi_disk_removable_block_ops = { |
2c6942fa | 2294 | .change_media_cb = scsi_cd_change_media_cb, |
4480de19 | 2295 | .eject_request_cb = scsi_cd_eject_request_cb, |
e4def80b | 2296 | .is_tray_open = scsi_cd_is_tray_open, |
f107639a | 2297 | .is_medium_locked = scsi_cd_is_medium_locked, |
aaebacef PB |
2298 | |
2299 | .resize_cb = scsi_disk_resize_cb, | |
2300 | }; | |
2301 | ||
2302 | static const BlockDevOps scsi_disk_block_ops = { | |
2303 | .resize_cb = scsi_disk_resize_cb, | |
f107639a MA |
2304 | }; |
2305 | ||
8a9c16f6 PB |
2306 | static void scsi_disk_unit_attention_reported(SCSIDevice *dev) |
2307 | { | |
2308 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, dev); | |
2309 | if (s->media_changed) { | |
2310 | s->media_changed = false; | |
e48e84ea | 2311 | scsi_device_set_ua(&s->qdev, SENSE_CODE(MEDIUM_CHANGED)); |
8a9c16f6 PB |
2312 | } |
2313 | } | |
2314 | ||
a818a4b6 | 2315 | static void scsi_realize(SCSIDevice *dev, Error **errp) |
2e5d83bb | 2316 | { |
d52affa7 | 2317 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, dev); |
2e5d83bb | 2318 | |
4be74634 | 2319 | if (!s->qdev.conf.blk) { |
a818a4b6 FZ |
2320 | error_setg(errp, "drive property not set"); |
2321 | return; | |
d52affa7 GH |
2322 | } |
2323 | ||
bfe3d7ac | 2324 | if (!(s->features & (1 << SCSI_DISK_F_REMOVABLE)) && |
4be74634 | 2325 | !blk_is_inserted(s->qdev.conf.blk)) { |
a818a4b6 FZ |
2326 | error_setg(errp, "Device needs media, but drive is empty"); |
2327 | return; | |
98f28ad7 MA |
2328 | } |
2329 | ||
0eb28a42 | 2330 | blkconf_blocksizes(&s->qdev.conf); |
3da023b5 MK |
2331 | |
2332 | if (s->qdev.conf.logical_block_size > | |
2333 | s->qdev.conf.physical_block_size) { | |
2334 | error_setg(errp, | |
2335 | "logical_block_size > physical_block_size not supported"); | |
2336 | return; | |
2337 | } | |
2338 | ||
5ff5efb4 | 2339 | if (dev->type == TYPE_DISK) { |
ceff3e1f | 2340 | if (!blkconf_geometry(&dev->conf, NULL, 65535, 255, 255, errp)) { |
a818a4b6 | 2341 | return; |
5ff5efb4 | 2342 | } |
b7eb0c9f | 2343 | } |
ceff3e1f MZ |
2344 | if (!blkconf_apply_backend_options(&dev->conf, |
2345 | blk_is_read_only(s->qdev.conf.blk), | |
2346 | dev->type == TYPE_DISK, errp)) { | |
a17c17a2 KW |
2347 | return; |
2348 | } | |
a0fef654 | 2349 | |
215e47b9 PB |
2350 | if (s->qdev.conf.discard_granularity == -1) { |
2351 | s->qdev.conf.discard_granularity = | |
2352 | MAX(s->qdev.conf.logical_block_size, DEFAULT_DISCARD_GRANULARITY); | |
2353 | } | |
2354 | ||
552fee93 | 2355 | if (!s->version) { |
35c2c8dc | 2356 | s->version = g_strdup(qemu_hw_version()); |
552fee93 | 2357 | } |
353815aa DF |
2358 | if (!s->vendor) { |
2359 | s->vendor = g_strdup("QEMU"); | |
2360 | } | |
7471a649 KW |
2361 | if (!s->device_id) { |
2362 | if (s->serial) { | |
2363 | s->device_id = g_strdup_printf("%.20s", s->serial); | |
2364 | } else { | |
2365 | const char *str = blk_name(s->qdev.conf.blk); | |
2366 | if (str && *str) { | |
2367 | s->device_id = g_strdup(str); | |
2368 | } | |
2369 | } | |
2370 | } | |
552fee93 | 2371 | |
4be74634 | 2372 | if (blk_is_sg(s->qdev.conf.blk)) { |
a818a4b6 FZ |
2373 | error_setg(errp, "unwanted /dev/sg*"); |
2374 | return; | |
32bb404a MA |
2375 | } |
2376 | ||
18e673b8 PH |
2377 | if ((s->features & (1 << SCSI_DISK_F_REMOVABLE)) && |
2378 | !(s->features & (1 << SCSI_DISK_F_NO_REMOVABLE_DEVOPS))) { | |
4be74634 | 2379 | blk_set_dev_ops(s->qdev.conf.blk, &scsi_disk_removable_block_ops, s); |
aaebacef | 2380 | } else { |
4be74634 | 2381 | blk_set_dev_ops(s->qdev.conf.blk, &scsi_disk_block_ops, s); |
2e5d83bb | 2382 | } |
4be74634 | 2383 | blk_set_guest_block_size(s->qdev.conf.blk, s->qdev.blocksize); |
8cfacf07 | 2384 | |
4be74634 | 2385 | blk_iostatus_enable(s->qdev.conf.blk); |
d52affa7 GH |
2386 | } |
2387 | ||
a818a4b6 | 2388 | static void scsi_hd_realize(SCSIDevice *dev, Error **errp) |
b443ae67 | 2389 | { |
e39be482 | 2390 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, dev); |
3ff35ba3 | 2391 | AioContext *ctx = NULL; |
df1d4c34 ET |
2392 | /* can happen for devices without drive. The error message for missing |
2393 | * backend will be issued in scsi_realize | |
2394 | */ | |
2395 | if (s->qdev.conf.blk) { | |
3ff35ba3 AG |
2396 | ctx = blk_get_aio_context(s->qdev.conf.blk); |
2397 | aio_context_acquire(ctx); | |
df1d4c34 ET |
2398 | blkconf_blocksizes(&s->qdev.conf); |
2399 | } | |
e39be482 PB |
2400 | s->qdev.blocksize = s->qdev.conf.logical_block_size; |
2401 | s->qdev.type = TYPE_DISK; | |
353815aa DF |
2402 | if (!s->product) { |
2403 | s->product = g_strdup("QEMU HARDDISK"); | |
2404 | } | |
a818a4b6 | 2405 | scsi_realize(&s->qdev, errp); |
3ff35ba3 AG |
2406 | if (ctx) { |
2407 | aio_context_release(ctx); | |
2408 | } | |
b443ae67 MA |
2409 | } |
2410 | ||
a818a4b6 | 2411 | static void scsi_cd_realize(SCSIDevice *dev, Error **errp) |
b443ae67 | 2412 | { |
e39be482 | 2413 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, dev); |
3ff35ba3 | 2414 | AioContext *ctx; |
83b4fe0e | 2415 | int ret; |
9ef6e505 KW |
2416 | |
2417 | if (!dev->conf.blk) { | |
83b4fe0e KW |
2418 | /* Anonymous BlockBackend for an empty drive. As we put it into |
2419 | * dev->conf, qdev takes care of detaching on unplug. */ | |
6d0eb64d | 2420 | dev->conf.blk = blk_new(0, BLK_PERM_ALL); |
83b4fe0e KW |
2421 | ret = blk_attach_dev(dev->conf.blk, &dev->qdev); |
2422 | assert(ret == 0); | |
9ef6e505 KW |
2423 | } |
2424 | ||
3ff35ba3 AG |
2425 | ctx = blk_get_aio_context(dev->conf.blk); |
2426 | aio_context_acquire(ctx); | |
e39be482 PB |
2427 | s->qdev.blocksize = 2048; |
2428 | s->qdev.type = TYPE_ROM; | |
bfe3d7ac | 2429 | s->features |= 1 << SCSI_DISK_F_REMOVABLE; |
353815aa DF |
2430 | if (!s->product) { |
2431 | s->product = g_strdup("QEMU CD-ROM"); | |
2432 | } | |
a818a4b6 | 2433 | scsi_realize(&s->qdev, errp); |
3ff35ba3 | 2434 | aio_context_release(ctx); |
b443ae67 MA |
2435 | } |
2436 | ||
a818a4b6 | 2437 | static void scsi_disk_realize(SCSIDevice *dev, Error **errp) |
b443ae67 | 2438 | { |
95b5edcd | 2439 | DriveInfo *dinfo; |
a818a4b6 | 2440 | Error *local_err = NULL; |
b443ae67 | 2441 | |
4be74634 | 2442 | if (!dev->conf.blk) { |
a818a4b6 FZ |
2443 | scsi_realize(dev, &local_err); |
2444 | assert(local_err); | |
2445 | error_propagate(errp, local_err); | |
2446 | return; | |
b443ae67 MA |
2447 | } |
2448 | ||
4be74634 | 2449 | dinfo = blk_legacy_dinfo(dev->conf.blk); |
26f8b3a8 | 2450 | if (dinfo && dinfo->media_cd) { |
a818a4b6 | 2451 | scsi_cd_realize(dev, errp); |
e39be482 | 2452 | } else { |
a818a4b6 | 2453 | scsi_hd_realize(dev, errp); |
e39be482 | 2454 | } |
b443ae67 MA |
2455 | } |
2456 | ||
b08d0ea0 | 2457 | static const SCSIReqOps scsi_disk_emulate_reqops = { |
8dbd4574 | 2458 | .size = sizeof(SCSIDiskReq), |
12010e7b | 2459 | .free_req = scsi_free_request, |
b08d0ea0 | 2460 | .send_command = scsi_disk_emulate_command, |
314a3299 PB |
2461 | .read_data = scsi_disk_emulate_read_data, |
2462 | .write_data = scsi_disk_emulate_write_data, | |
b08d0ea0 PB |
2463 | .get_buf = scsi_get_buf, |
2464 | }; | |
2465 | ||
2466 | static const SCSIReqOps scsi_disk_dma_reqops = { | |
2467 | .size = sizeof(SCSIDiskReq), | |
2468 | .free_req = scsi_free_request, | |
2469 | .send_command = scsi_disk_dma_command, | |
12010e7b PB |
2470 | .read_data = scsi_read_data, |
2471 | .write_data = scsi_write_data, | |
12010e7b | 2472 | .get_buf = scsi_get_buf, |
43b978b9 PB |
2473 | .load_request = scsi_disk_load_request, |
2474 | .save_request = scsi_disk_save_request, | |
8dbd4574 PB |
2475 | }; |
2476 | ||
b08d0ea0 PB |
2477 | static const SCSIReqOps *const scsi_disk_reqops_dispatch[256] = { |
2478 | [TEST_UNIT_READY] = &scsi_disk_emulate_reqops, | |
2479 | [INQUIRY] = &scsi_disk_emulate_reqops, | |
2480 | [MODE_SENSE] = &scsi_disk_emulate_reqops, | |
2481 | [MODE_SENSE_10] = &scsi_disk_emulate_reqops, | |
2482 | [START_STOP] = &scsi_disk_emulate_reqops, | |
2483 | [ALLOW_MEDIUM_REMOVAL] = &scsi_disk_emulate_reqops, | |
2484 | [READ_CAPACITY_10] = &scsi_disk_emulate_reqops, | |
2485 | [READ_TOC] = &scsi_disk_emulate_reqops, | |
2486 | [READ_DVD_STRUCTURE] = &scsi_disk_emulate_reqops, | |
2487 | [READ_DISC_INFORMATION] = &scsi_disk_emulate_reqops, | |
2488 | [GET_CONFIGURATION] = &scsi_disk_emulate_reqops, | |
2489 | [GET_EVENT_STATUS_NOTIFICATION] = &scsi_disk_emulate_reqops, | |
2490 | [MECHANISM_STATUS] = &scsi_disk_emulate_reqops, | |
2491 | [SERVICE_ACTION_IN_16] = &scsi_disk_emulate_reqops, | |
2492 | [REQUEST_SENSE] = &scsi_disk_emulate_reqops, | |
2493 | [SYNCHRONIZE_CACHE] = &scsi_disk_emulate_reqops, | |
2494 | [SEEK_10] = &scsi_disk_emulate_reqops, | |
b08d0ea0 PB |
2495 | [MODE_SELECT] = &scsi_disk_emulate_reqops, |
2496 | [MODE_SELECT_10] = &scsi_disk_emulate_reqops, | |
5222aaf2 | 2497 | [UNMAP] = &scsi_disk_emulate_reqops, |
b08d0ea0 PB |
2498 | [WRITE_SAME_10] = &scsi_disk_emulate_reqops, |
2499 | [WRITE_SAME_16] = &scsi_disk_emulate_reqops, | |
d97e7730 PB |
2500 | [VERIFY_10] = &scsi_disk_emulate_reqops, |
2501 | [VERIFY_12] = &scsi_disk_emulate_reqops, | |
2502 | [VERIFY_16] = &scsi_disk_emulate_reqops, | |
b08d0ea0 PB |
2503 | |
2504 | [READ_6] = &scsi_disk_dma_reqops, | |
2505 | [READ_10] = &scsi_disk_dma_reqops, | |
2506 | [READ_12] = &scsi_disk_dma_reqops, | |
2507 | [READ_16] = &scsi_disk_dma_reqops, | |
b08d0ea0 PB |
2508 | [WRITE_6] = &scsi_disk_dma_reqops, |
2509 | [WRITE_10] = &scsi_disk_dma_reqops, | |
2510 | [WRITE_12] = &scsi_disk_dma_reqops, | |
2511 | [WRITE_16] = &scsi_disk_dma_reqops, | |
2512 | [WRITE_VERIFY_10] = &scsi_disk_dma_reqops, | |
2513 | [WRITE_VERIFY_12] = &scsi_disk_dma_reqops, | |
2514 | [WRITE_VERIFY_16] = &scsi_disk_dma_reqops, | |
2515 | }; | |
2516 | ||
59ee9500 LV |
2517 | static void scsi_disk_new_request_dump(uint32_t lun, uint32_t tag, uint8_t *buf) |
2518 | { | |
2519 | int i; | |
2520 | int len = scsi_cdb_length(buf); | |
2521 | char *line_buffer, *p; | |
2522 | ||
2523 | line_buffer = g_malloc(len * 5 + 1); | |
2524 | ||
2525 | for (i = 0, p = line_buffer; i < len; i++) { | |
2526 | p += sprintf(p, " 0x%02x", buf[i]); | |
2527 | } | |
2528 | trace_scsi_disk_new_request(lun, tag, line_buffer); | |
2529 | ||
2530 | g_free(line_buffer); | |
2531 | } | |
2532 | ||
63db0f0e PB |
2533 | static SCSIRequest *scsi_new_request(SCSIDevice *d, uint32_t tag, uint32_t lun, |
2534 | uint8_t *buf, void *hba_private) | |
8dbd4574 PB |
2535 | { |
2536 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, d); | |
2537 | SCSIRequest *req; | |
b08d0ea0 PB |
2538 | const SCSIReqOps *ops; |
2539 | uint8_t command; | |
8dbd4574 | 2540 | |
79fb50bb PB |
2541 | command = buf[0]; |
2542 | ops = scsi_disk_reqops_dispatch[command]; | |
2543 | if (!ops) { | |
2544 | ops = &scsi_disk_emulate_reqops; | |
2545 | } | |
2546 | req = scsi_req_alloc(ops, &s->qdev, tag, lun, hba_private); | |
2547 | ||
59ee9500 LV |
2548 | if (trace_event_get_state_backends(TRACE_SCSI_DISK_NEW_REQUEST)) { |
2549 | scsi_disk_new_request_dump(lun, tag, buf); | |
b08d0ea0 | 2550 | } |
b08d0ea0 | 2551 | |
8dbd4574 PB |
2552 | return req; |
2553 | } | |
2554 | ||
336a6915 PB |
2555 | #ifdef __linux__ |
2556 | static int get_device_type(SCSIDiskState *s) | |
2557 | { | |
336a6915 PB |
2558 | uint8_t cmd[16]; |
2559 | uint8_t buf[36]; | |
336a6915 PB |
2560 | int ret; |
2561 | ||
2562 | memset(cmd, 0, sizeof(cmd)); | |
2563 | memset(buf, 0, sizeof(buf)); | |
2564 | cmd[0] = INQUIRY; | |
2565 | cmd[4] = sizeof(buf); | |
2566 | ||
a0c7e35b DHB |
2567 | ret = scsi_SG_IO_FROM_DEV(s->qdev.conf.blk, cmd, sizeof(cmd), |
2568 | buf, sizeof(buf)); | |
2569 | if (ret < 0) { | |
336a6915 PB |
2570 | return -1; |
2571 | } | |
2572 | s->qdev.type = buf[0]; | |
bfe3d7ac PB |
2573 | if (buf[1] & 0x80) { |
2574 | s->features |= 1 << SCSI_DISK_F_REMOVABLE; | |
2575 | } | |
336a6915 PB |
2576 | return 0; |
2577 | } | |
2578 | ||
a818a4b6 | 2579 | static void scsi_block_realize(SCSIDevice *dev, Error **errp) |
336a6915 PB |
2580 | { |
2581 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, dev); | |
3ff35ba3 | 2582 | AioContext *ctx; |
336a6915 PB |
2583 | int sg_version; |
2584 | int rc; | |
2585 | ||
4be74634 | 2586 | if (!s->qdev.conf.blk) { |
a818a4b6 FZ |
2587 | error_setg(errp, "drive property not set"); |
2588 | return; | |
336a6915 PB |
2589 | } |
2590 | ||
51f43d57 FZ |
2591 | if (s->rotation_rate) { |
2592 | error_report_once("rotation_rate is specified for scsi-block but is " | |
2593 | "not implemented. This option is deprecated and will " | |
2594 | "be removed in a future version"); | |
2595 | } | |
2596 | ||
3ff35ba3 AG |
2597 | ctx = blk_get_aio_context(s->qdev.conf.blk); |
2598 | aio_context_acquire(ctx); | |
2599 | ||
336a6915 | 2600 | /* check we are using a driver managing SG_IO (version 3 and after) */ |
4be74634 | 2601 | rc = blk_ioctl(s->qdev.conf.blk, SG_GET_VERSION_NUM, &sg_version); |
4bbeb8b1 | 2602 | if (rc < 0) { |
09c2c6ff PB |
2603 | error_setg_errno(errp, -rc, "cannot get SG_IO version number"); |
2604 | if (rc != -EPERM) { | |
2605 | error_append_hint(errp, "Is this a SCSI device?\n"); | |
2606 | } | |
3ff35ba3 | 2607 | goto out; |
4bbeb8b1 FZ |
2608 | } |
2609 | if (sg_version < 30000) { | |
a818a4b6 | 2610 | error_setg(errp, "scsi generic interface too old"); |
3ff35ba3 | 2611 | goto out; |
336a6915 PB |
2612 | } |
2613 | ||
2614 | /* get device type from INQUIRY data */ | |
2615 | rc = get_device_type(s); | |
2616 | if (rc < 0) { | |
a818a4b6 | 2617 | error_setg(errp, "INQUIRY failed"); |
3ff35ba3 | 2618 | goto out; |
336a6915 PB |
2619 | } |
2620 | ||
2621 | /* Make a guess for the block size, we'll fix it when the guest sends. | |
2622 | * READ CAPACITY. If they don't, they likely would assume these sizes | |
2623 | * anyway. (TODO: check in /sys). | |
2624 | */ | |
2625 | if (s->qdev.type == TYPE_ROM || s->qdev.type == TYPE_WORM) { | |
2626 | s->qdev.blocksize = 2048; | |
2627 | } else { | |
2628 | s->qdev.blocksize = 512; | |
2629 | } | |
18e673b8 PH |
2630 | |
2631 | /* Makes the scsi-block device not removable by using HMP and QMP eject | |
2632 | * command. | |
2633 | */ | |
2634 | s->features |= (1 << SCSI_DISK_F_NO_REMOVABLE_DEVOPS); | |
2635 | ||
a818a4b6 | 2636 | scsi_realize(&s->qdev, errp); |
a71c775b | 2637 | scsi_generic_read_device_inquiry(&s->qdev); |
3ff35ba3 AG |
2638 | |
2639 | out: | |
2640 | aio_context_release(ctx); | |
336a6915 PB |
2641 | } |
2642 | ||
8fdc7839 PB |
2643 | typedef struct SCSIBlockReq { |
2644 | SCSIDiskReq req; | |
2645 | sg_io_hdr_t io_header; | |
2646 | ||
2647 | /* Selected bytes of the original CDB, copied into our own CDB. */ | |
2648 | uint8_t cmd, cdb1, group_number; | |
2649 | ||
2650 | /* CDB passed to SG_IO. */ | |
2651 | uint8_t cdb[16]; | |
2652 | } SCSIBlockReq; | |
2653 | ||
2654 | static BlockAIOCB *scsi_block_do_sgio(SCSIBlockReq *req, | |
2655 | int64_t offset, QEMUIOVector *iov, | |
2656 | int direction, | |
2657 | BlockCompletionFunc *cb, void *opaque) | |
2658 | { | |
2659 | sg_io_hdr_t *io_header = &req->io_header; | |
2660 | SCSIDiskReq *r = &req->req; | |
2661 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); | |
2662 | int nb_logical_blocks; | |
2663 | uint64_t lba; | |
2664 | BlockAIOCB *aiocb; | |
2665 | ||
2666 | /* This is not supported yet. It can only happen if the guest does | |
2667 | * reads and writes that are not aligned to one logical sectors | |
2668 | * _and_ cover multiple MemoryRegions. | |
2669 | */ | |
2670 | assert(offset % s->qdev.blocksize == 0); | |
2671 | assert(iov->size % s->qdev.blocksize == 0); | |
2672 | ||
2673 | io_header->interface_id = 'S'; | |
2674 | ||
2675 | /* The data transfer comes from the QEMUIOVector. */ | |
2676 | io_header->dxfer_direction = direction; | |
2677 | io_header->dxfer_len = iov->size; | |
2678 | io_header->dxferp = (void *)iov->iov; | |
2679 | io_header->iovec_count = iov->niov; | |
2680 | assert(io_header->iovec_count == iov->niov); /* no overflow! */ | |
2681 | ||
2682 | /* Build a new CDB with the LBA and length patched in, in case | |
2683 | * DMA helpers split the transfer in multiple segments. Do not | |
2684 | * build a CDB smaller than what the guest wanted, and only build | |
2685 | * a larger one if strictly necessary. | |
2686 | */ | |
2687 | io_header->cmdp = req->cdb; | |
2688 | lba = offset / s->qdev.blocksize; | |
2689 | nb_logical_blocks = io_header->dxfer_len / s->qdev.blocksize; | |
2690 | ||
2691 | if ((req->cmd >> 5) == 0 && lba <= 0x1ffff) { | |
2692 | /* 6-byte CDB */ | |
2693 | stl_be_p(&req->cdb[0], lba | (req->cmd << 24)); | |
2694 | req->cdb[4] = nb_logical_blocks; | |
2695 | req->cdb[5] = 0; | |
2696 | io_header->cmd_len = 6; | |
2697 | } else if ((req->cmd >> 5) <= 1 && lba <= 0xffffffffULL) { | |
2698 | /* 10-byte CDB */ | |
2699 | req->cdb[0] = (req->cmd & 0x1f) | 0x20; | |
2700 | req->cdb[1] = req->cdb1; | |
2701 | stl_be_p(&req->cdb[2], lba); | |
2702 | req->cdb[6] = req->group_number; | |
2703 | stw_be_p(&req->cdb[7], nb_logical_blocks); | |
2704 | req->cdb[9] = 0; | |
2705 | io_header->cmd_len = 10; | |
2706 | } else if ((req->cmd >> 5) != 4 && lba <= 0xffffffffULL) { | |
2707 | /* 12-byte CDB */ | |
2708 | req->cdb[0] = (req->cmd & 0x1f) | 0xA0; | |
2709 | req->cdb[1] = req->cdb1; | |
2710 | stl_be_p(&req->cdb[2], lba); | |
2711 | stl_be_p(&req->cdb[6], nb_logical_blocks); | |
2712 | req->cdb[10] = req->group_number; | |
2713 | req->cdb[11] = 0; | |
2714 | io_header->cmd_len = 12; | |
2715 | } else { | |
2716 | /* 16-byte CDB */ | |
2717 | req->cdb[0] = (req->cmd & 0x1f) | 0x80; | |
2718 | req->cdb[1] = req->cdb1; | |
2719 | stq_be_p(&req->cdb[2], lba); | |
2720 | stl_be_p(&req->cdb[10], nb_logical_blocks); | |
2721 | req->cdb[14] = req->group_number; | |
2722 | req->cdb[15] = 0; | |
2723 | io_header->cmd_len = 16; | |
2724 | } | |
2725 | ||
2726 | /* The rest is as in scsi-generic.c. */ | |
2727 | io_header->mx_sb_len = sizeof(r->req.sense); | |
2728 | io_header->sbp = r->req.sense; | |
2729 | io_header->timeout = UINT_MAX; | |
2730 | io_header->usr_ptr = r; | |
2731 | io_header->flags |= SG_FLAG_DIRECT_IO; | |
2732 | ||
2733 | aiocb = blk_aio_ioctl(s->qdev.conf.blk, SG_IO, io_header, cb, opaque); | |
2734 | assert(aiocb != NULL); | |
2735 | return aiocb; | |
2736 | } | |
2737 | ||
2738 | static bool scsi_block_no_fua(SCSICommand *cmd) | |
2739 | { | |
2740 | return false; | |
2741 | } | |
2742 | ||
2743 | static BlockAIOCB *scsi_block_dma_readv(int64_t offset, | |
2744 | QEMUIOVector *iov, | |
2745 | BlockCompletionFunc *cb, void *cb_opaque, | |
2746 | void *opaque) | |
2747 | { | |
2748 | SCSIBlockReq *r = opaque; | |
2749 | return scsi_block_do_sgio(r, offset, iov, | |
2750 | SG_DXFER_FROM_DEV, cb, cb_opaque); | |
2751 | } | |
2752 | ||
2753 | static BlockAIOCB *scsi_block_dma_writev(int64_t offset, | |
2754 | QEMUIOVector *iov, | |
2755 | BlockCompletionFunc *cb, void *cb_opaque, | |
2756 | void *opaque) | |
2757 | { | |
2758 | SCSIBlockReq *r = opaque; | |
2759 | return scsi_block_do_sgio(r, offset, iov, | |
2760 | SG_DXFER_TO_DEV, cb, cb_opaque); | |
2761 | } | |
2762 | ||
592c3b28 | 2763 | static bool scsi_block_is_passthrough(SCSIDiskState *s, uint8_t *buf) |
336a6915 | 2764 | { |
336a6915 | 2765 | switch (buf[0]) { |
8fdc7839 PB |
2766 | case VERIFY_10: |
2767 | case VERIFY_12: | |
2768 | case VERIFY_16: | |
2769 | /* Check if BYTCHK == 0x01 (data-out buffer contains data | |
2770 | * for the number of logical blocks specified in the length | |
2771 | * field). For other modes, do not use scatter/gather operation. | |
2772 | */ | |
1f8af0d1 | 2773 | if ((buf[1] & 6) == 2) { |
8fdc7839 PB |
2774 | return false; |
2775 | } | |
2776 | break; | |
2777 | ||
336a6915 PB |
2778 | case READ_6: |
2779 | case READ_10: | |
2780 | case READ_12: | |
2781 | case READ_16: | |
2782 | case WRITE_6: | |
2783 | case WRITE_10: | |
2784 | case WRITE_12: | |
2785 | case WRITE_16: | |
2786 | case WRITE_VERIFY_10: | |
2787 | case WRITE_VERIFY_12: | |
2788 | case WRITE_VERIFY_16: | |
8fdc7839 | 2789 | /* MMC writing cannot be done via DMA helpers, because it sometimes |
33ebad12 | 2790 | * involves writing beyond the maximum LBA or to negative LBA (lead-in). |
166dbda7 | 2791 | * We might use scsi_block_dma_reqops as long as no writing commands are |
33ebad12 PB |
2792 | * seen, but performance usually isn't paramount on optical media. So, |
2793 | * just make scsi-block operate the same as scsi-generic for them. | |
2794 | */ | |
b08d0ea0 | 2795 | if (s->qdev.type != TYPE_ROM) { |
592c3b28 | 2796 | return false; |
b08d0ea0 | 2797 | } |
592c3b28 PB |
2798 | break; |
2799 | ||
2800 | default: | |
2801 | break; | |
336a6915 PB |
2802 | } |
2803 | ||
592c3b28 PB |
2804 | return true; |
2805 | } | |
2806 | ||
2807 | ||
8fdc7839 PB |
2808 | static int32_t scsi_block_dma_command(SCSIRequest *req, uint8_t *buf) |
2809 | { | |
2810 | SCSIBlockReq *r = (SCSIBlockReq *)req; | |
2343be0d PB |
2811 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, req->dev); |
2812 | ||
8fdc7839 PB |
2813 | r->cmd = req->cmd.buf[0]; |
2814 | switch (r->cmd >> 5) { | |
2815 | case 0: | |
2816 | /* 6-byte CDB. */ | |
2817 | r->cdb1 = r->group_number = 0; | |
2818 | break; | |
2819 | case 1: | |
2820 | /* 10-byte CDB. */ | |
2821 | r->cdb1 = req->cmd.buf[1]; | |
2822 | r->group_number = req->cmd.buf[6]; | |
ed45cae3 | 2823 | break; |
8fdc7839 PB |
2824 | case 4: |
2825 | /* 12-byte CDB. */ | |
2826 | r->cdb1 = req->cmd.buf[1]; | |
2827 | r->group_number = req->cmd.buf[10]; | |
2828 | break; | |
2829 | case 5: | |
2830 | /* 16-byte CDB. */ | |
2831 | r->cdb1 = req->cmd.buf[1]; | |
2832 | r->group_number = req->cmd.buf[14]; | |
2833 | break; | |
2834 | default: | |
2835 | abort(); | |
2836 | } | |
2837 | ||
2343be0d PB |
2838 | /* Protection information is not supported. For SCSI versions 2 and |
2839 | * older (as determined by snooping the guest's INQUIRY commands), | |
2840 | * there is no RD/WR/VRPROTECT, so skip this check in these versions. | |
2841 | */ | |
2842 | if (s->qdev.scsi_version > 2 && (req->cmd.buf[1] & 0xe0)) { | |
8fdc7839 PB |
2843 | scsi_check_condition(&r->req, SENSE_CODE(INVALID_FIELD)); |
2844 | return 0; | |
2845 | } | |
2846 | ||
2847 | r->req.status = &r->io_header.status; | |
2848 | return scsi_disk_dma_command(req, buf); | |
2849 | } | |
2850 | ||
2851 | static const SCSIReqOps scsi_block_dma_reqops = { | |
2852 | .size = sizeof(SCSIBlockReq), | |
2853 | .free_req = scsi_free_request, | |
2854 | .send_command = scsi_block_dma_command, | |
2855 | .read_data = scsi_read_data, | |
2856 | .write_data = scsi_write_data, | |
2857 | .get_buf = scsi_get_buf, | |
2858 | .load_request = scsi_disk_load_request, | |
2859 | .save_request = scsi_disk_save_request, | |
2860 | }; | |
2861 | ||
592c3b28 PB |
2862 | static SCSIRequest *scsi_block_new_request(SCSIDevice *d, uint32_t tag, |
2863 | uint32_t lun, uint8_t *buf, | |
2864 | void *hba_private) | |
2865 | { | |
2866 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, d); | |
2867 | ||
2868 | if (scsi_block_is_passthrough(s, buf)) { | |
2869 | return scsi_req_alloc(&scsi_generic_req_ops, &s->qdev, tag, lun, | |
2870 | hba_private); | |
2871 | } else { | |
8fdc7839 | 2872 | return scsi_req_alloc(&scsi_block_dma_reqops, &s->qdev, tag, lun, |
592c3b28 PB |
2873 | hba_private); |
2874 | } | |
336a6915 | 2875 | } |
3e7e180a PB |
2876 | |
2877 | static int scsi_block_parse_cdb(SCSIDevice *d, SCSICommand *cmd, | |
2878 | uint8_t *buf, void *hba_private) | |
2879 | { | |
2880 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, d); | |
2881 | ||
2882 | if (scsi_block_is_passthrough(s, buf)) { | |
2883 | return scsi_bus_parse_cdb(&s->qdev, cmd, buf, hba_private); | |
2884 | } else { | |
2885 | return scsi_req_parse_cdb(&s->qdev, cmd, buf); | |
2886 | } | |
2887 | } | |
2888 | ||
336a6915 PB |
2889 | #endif |
2890 | ||
fcaafb10 PB |
2891 | static |
2892 | BlockAIOCB *scsi_dma_readv(int64_t offset, QEMUIOVector *iov, | |
2893 | BlockCompletionFunc *cb, void *cb_opaque, | |
2894 | void *opaque) | |
2895 | { | |
2896 | SCSIDiskReq *r = opaque; | |
2897 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); | |
2898 | return blk_aio_preadv(s->qdev.conf.blk, offset, iov, 0, cb, cb_opaque); | |
2899 | } | |
2900 | ||
2901 | static | |
2902 | BlockAIOCB *scsi_dma_writev(int64_t offset, QEMUIOVector *iov, | |
2903 | BlockCompletionFunc *cb, void *cb_opaque, | |
2904 | void *opaque) | |
2905 | { | |
2906 | SCSIDiskReq *r = opaque; | |
2907 | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); | |
2908 | return blk_aio_pwritev(s->qdev.conf.blk, offset, iov, 0, cb, cb_opaque); | |
2909 | } | |
2910 | ||
993935f3 PB |
2911 | static void scsi_disk_base_class_initfn(ObjectClass *klass, void *data) |
2912 | { | |
2913 | DeviceClass *dc = DEVICE_CLASS(klass); | |
fcaafb10 | 2914 | SCSIDiskClass *sdc = SCSI_DISK_BASE_CLASS(klass); |
993935f3 PB |
2915 | |
2916 | dc->fw_name = "disk"; | |
2917 | dc->reset = scsi_disk_reset; | |
fcaafb10 PB |
2918 | sdc->dma_readv = scsi_dma_readv; |
2919 | sdc->dma_writev = scsi_dma_writev; | |
94f8ba11 | 2920 | sdc->need_fua_emulation = scsi_is_cmd_fua; |
993935f3 PB |
2921 | } |
2922 | ||
2923 | static const TypeInfo scsi_disk_base_info = { | |
2924 | .name = TYPE_SCSI_DISK_BASE, | |
2925 | .parent = TYPE_SCSI_DEVICE, | |
2926 | .class_init = scsi_disk_base_class_initfn, | |
2927 | .instance_size = sizeof(SCSIDiskState), | |
fcaafb10 | 2928 | .class_size = sizeof(SCSIDiskClass), |
6214a11a | 2929 | .abstract = true, |
993935f3 PB |
2930 | }; |
2931 | ||
353815aa DF |
2932 | #define DEFINE_SCSI_DISK_PROPERTIES() \ |
2933 | DEFINE_BLOCK_PROPERTIES(SCSIDiskState, qdev.conf), \ | |
8c398252 | 2934 | DEFINE_BLOCK_ERROR_PROPERTIES(SCSIDiskState, qdev.conf), \ |
353815aa DF |
2935 | DEFINE_PROP_STRING("ver", SCSIDiskState, version), \ |
2936 | DEFINE_PROP_STRING("serial", SCSIDiskState, serial), \ | |
2937 | DEFINE_PROP_STRING("vendor", SCSIDiskState, vendor), \ | |
7471a649 KW |
2938 | DEFINE_PROP_STRING("product", SCSIDiskState, product), \ |
2939 | DEFINE_PROP_STRING("device_id", SCSIDiskState, device_id) | |
2940 | ||
b443ae67 | 2941 | |
39bffca2 AL |
2942 | static Property scsi_hd_properties[] = { |
2943 | DEFINE_SCSI_DISK_PROPERTIES(), | |
bfe3d7ac PB |
2944 | DEFINE_PROP_BIT("removable", SCSIDiskState, features, |
2945 | SCSI_DISK_F_REMOVABLE, false), | |
da8365db PB |
2946 | DEFINE_PROP_BIT("dpofua", SCSIDiskState, features, |
2947 | SCSI_DISK_F_DPOFUA, false), | |
2ecab408 PB |
2948 | DEFINE_PROP_UINT64("wwn", SCSIDiskState, qdev.wwn, 0), |
2949 | DEFINE_PROP_UINT64("port_wwn", SCSIDiskState, qdev.port_wwn, 0), | |
64cc2284 | 2950 | DEFINE_PROP_UINT16("port_index", SCSIDiskState, port_index, 0), |
8a1bd297 PB |
2951 | DEFINE_PROP_UINT64("max_unmap_size", SCSIDiskState, max_unmap_size, |
2952 | DEFAULT_MAX_UNMAP_SIZE), | |
f8e1f533 PB |
2953 | DEFINE_PROP_UINT64("max_io_size", SCSIDiskState, max_io_size, |
2954 | DEFAULT_MAX_IO_SIZE), | |
070f8009 | 2955 | DEFINE_PROP_UINT16("rotation_rate", SCSIDiskState, rotation_rate, 0), |
2343be0d PB |
2956 | DEFINE_PROP_INT32("scsi_version", SCSIDiskState, qdev.default_scsi_version, |
2957 | 5), | |
d252df48 | 2958 | DEFINE_BLOCK_CHS_PROPERTIES(SCSIDiskState, qdev.conf), |
39bffca2 AL |
2959 | DEFINE_PROP_END_OF_LIST(), |
2960 | }; | |
2961 | ||
43b978b9 PB |
2962 | static const VMStateDescription vmstate_scsi_disk_state = { |
2963 | .name = "scsi-disk", | |
2964 | .version_id = 1, | |
2965 | .minimum_version_id = 1, | |
43b978b9 PB |
2966 | .fields = (VMStateField[]) { |
2967 | VMSTATE_SCSI_DEVICE(qdev, SCSIDiskState), | |
2968 | VMSTATE_BOOL(media_changed, SCSIDiskState), | |
2969 | VMSTATE_BOOL(media_event, SCSIDiskState), | |
2970 | VMSTATE_BOOL(eject_request, SCSIDiskState), | |
2971 | VMSTATE_BOOL(tray_open, SCSIDiskState), | |
2972 | VMSTATE_BOOL(tray_locked, SCSIDiskState), | |
2973 | VMSTATE_END_OF_LIST() | |
2974 | } | |
2975 | }; | |
2976 | ||
b9eea3e6 AL |
2977 | static void scsi_hd_class_initfn(ObjectClass *klass, void *data) |
2978 | { | |
39bffca2 | 2979 | DeviceClass *dc = DEVICE_CLASS(klass); |
b9eea3e6 AL |
2980 | SCSIDeviceClass *sc = SCSI_DEVICE_CLASS(klass); |
2981 | ||
a818a4b6 | 2982 | sc->realize = scsi_hd_realize; |
b9eea3e6 AL |
2983 | sc->alloc_req = scsi_new_request; |
2984 | sc->unit_attention_reported = scsi_disk_unit_attention_reported; | |
39bffca2 | 2985 | dc->desc = "virtual SCSI disk"; |
39bffca2 | 2986 | dc->props = scsi_hd_properties; |
43b978b9 | 2987 | dc->vmsd = &vmstate_scsi_disk_state; |
b9eea3e6 AL |
2988 | } |
2989 | ||
8c43a6f0 | 2990 | static const TypeInfo scsi_hd_info = { |
39bffca2 | 2991 | .name = "scsi-hd", |
993935f3 | 2992 | .parent = TYPE_SCSI_DISK_BASE, |
39bffca2 AL |
2993 | .class_init = scsi_hd_class_initfn, |
2994 | }; | |
2995 | ||
2996 | static Property scsi_cd_properties[] = { | |
2997 | DEFINE_SCSI_DISK_PROPERTIES(), | |
2ecab408 PB |
2998 | DEFINE_PROP_UINT64("wwn", SCSIDiskState, qdev.wwn, 0), |
2999 | DEFINE_PROP_UINT64("port_wwn", SCSIDiskState, qdev.port_wwn, 0), | |
64cc2284 | 3000 | DEFINE_PROP_UINT16("port_index", SCSIDiskState, port_index, 0), |
f8e1f533 PB |
3001 | DEFINE_PROP_UINT64("max_io_size", SCSIDiskState, max_io_size, |
3002 | DEFAULT_MAX_IO_SIZE), | |
2343be0d PB |
3003 | DEFINE_PROP_INT32("scsi_version", SCSIDiskState, qdev.default_scsi_version, |
3004 | 5), | |
39bffca2 | 3005 | DEFINE_PROP_END_OF_LIST(), |
b9eea3e6 AL |
3006 | }; |
3007 | ||
3008 | static void scsi_cd_class_initfn(ObjectClass *klass, void *data) | |
3009 | { | |
39bffca2 | 3010 | DeviceClass *dc = DEVICE_CLASS(klass); |
b9eea3e6 AL |
3011 | SCSIDeviceClass *sc = SCSI_DEVICE_CLASS(klass); |
3012 | ||
a818a4b6 | 3013 | sc->realize = scsi_cd_realize; |
b9eea3e6 AL |
3014 | sc->alloc_req = scsi_new_request; |
3015 | sc->unit_attention_reported = scsi_disk_unit_attention_reported; | |
39bffca2 | 3016 | dc->desc = "virtual SCSI CD-ROM"; |
39bffca2 | 3017 | dc->props = scsi_cd_properties; |
43b978b9 | 3018 | dc->vmsd = &vmstate_scsi_disk_state; |
b9eea3e6 AL |
3019 | } |
3020 | ||
8c43a6f0 | 3021 | static const TypeInfo scsi_cd_info = { |
39bffca2 | 3022 | .name = "scsi-cd", |
993935f3 | 3023 | .parent = TYPE_SCSI_DISK_BASE, |
39bffca2 | 3024 | .class_init = scsi_cd_class_initfn, |
b9eea3e6 AL |
3025 | }; |
3026 | ||
336a6915 | 3027 | #ifdef __linux__ |
39bffca2 | 3028 | static Property scsi_block_properties[] = { |
14b20748 | 3029 | DEFINE_BLOCK_ERROR_PROPERTIES(SCSIDiskState, qdev.conf), \ |
4be74634 | 3030 | DEFINE_PROP_DRIVE("drive", SCSIDiskState, qdev.conf.blk), |
07488549 | 3031 | DEFINE_PROP_BOOL("share-rw", SCSIDiskState, qdev.conf.share_rw, false), |
070f8009 | 3032 | DEFINE_PROP_UINT16("rotation_rate", SCSIDiskState, rotation_rate, 0), |
0a96ca24 DHB |
3033 | DEFINE_PROP_UINT64("max_unmap_size", SCSIDiskState, max_unmap_size, |
3034 | DEFAULT_MAX_UNMAP_SIZE), | |
3035 | DEFINE_PROP_UINT64("max_io_size", SCSIDiskState, max_io_size, | |
3036 | DEFAULT_MAX_IO_SIZE), | |
2343be0d | 3037 | DEFINE_PROP_INT32("scsi_version", SCSIDiskState, qdev.default_scsi_version, |
29e560f0 | 3038 | -1), |
39bffca2 AL |
3039 | DEFINE_PROP_END_OF_LIST(), |
3040 | }; | |
3041 | ||
b9eea3e6 AL |
3042 | static void scsi_block_class_initfn(ObjectClass *klass, void *data) |
3043 | { | |
39bffca2 | 3044 | DeviceClass *dc = DEVICE_CLASS(klass); |
b9eea3e6 | 3045 | SCSIDeviceClass *sc = SCSI_DEVICE_CLASS(klass); |
8fdc7839 | 3046 | SCSIDiskClass *sdc = SCSI_DISK_BASE_CLASS(klass); |
b9eea3e6 | 3047 | |
a818a4b6 | 3048 | sc->realize = scsi_block_realize; |
b9eea3e6 | 3049 | sc->alloc_req = scsi_block_new_request; |
3e7e180a | 3050 | sc->parse_cdb = scsi_block_parse_cdb; |
8fdc7839 PB |
3051 | sdc->dma_readv = scsi_block_dma_readv; |
3052 | sdc->dma_writev = scsi_block_dma_writev; | |
3053 | sdc->need_fua_emulation = scsi_block_no_fua; | |
39bffca2 | 3054 | dc->desc = "SCSI block device passthrough"; |
39bffca2 | 3055 | dc->props = scsi_block_properties; |
43b978b9 | 3056 | dc->vmsd = &vmstate_scsi_disk_state; |
b9eea3e6 AL |
3057 | } |
3058 | ||
8c43a6f0 | 3059 | static const TypeInfo scsi_block_info = { |
39bffca2 | 3060 | .name = "scsi-block", |
993935f3 | 3061 | .parent = TYPE_SCSI_DISK_BASE, |
39bffca2 | 3062 | .class_init = scsi_block_class_initfn, |
b9eea3e6 | 3063 | }; |
336a6915 | 3064 | #endif |
b9eea3e6 | 3065 | |
39bffca2 AL |
3066 | static Property scsi_disk_properties[] = { |
3067 | DEFINE_SCSI_DISK_PROPERTIES(), | |
bfe3d7ac PB |
3068 | DEFINE_PROP_BIT("removable", SCSIDiskState, features, |
3069 | SCSI_DISK_F_REMOVABLE, false), | |
da8365db PB |
3070 | DEFINE_PROP_BIT("dpofua", SCSIDiskState, features, |
3071 | SCSI_DISK_F_DPOFUA, false), | |
2ecab408 PB |
3072 | DEFINE_PROP_UINT64("wwn", SCSIDiskState, qdev.wwn, 0), |
3073 | DEFINE_PROP_UINT64("port_wwn", SCSIDiskState, qdev.port_wwn, 0), | |
64cc2284 | 3074 | DEFINE_PROP_UINT16("port_index", SCSIDiskState, port_index, 0), |
8a1bd297 PB |
3075 | DEFINE_PROP_UINT64("max_unmap_size", SCSIDiskState, max_unmap_size, |
3076 | DEFAULT_MAX_UNMAP_SIZE), | |
f8e1f533 PB |
3077 | DEFINE_PROP_UINT64("max_io_size", SCSIDiskState, max_io_size, |
3078 | DEFAULT_MAX_IO_SIZE), | |
2343be0d PB |
3079 | DEFINE_PROP_INT32("scsi_version", SCSIDiskState, qdev.default_scsi_version, |
3080 | 5), | |
39bffca2 AL |
3081 | DEFINE_PROP_END_OF_LIST(), |
3082 | }; | |
3083 | ||
b9eea3e6 AL |
3084 | static void scsi_disk_class_initfn(ObjectClass *klass, void *data) |
3085 | { | |
39bffca2 | 3086 | DeviceClass *dc = DEVICE_CLASS(klass); |
b9eea3e6 AL |
3087 | SCSIDeviceClass *sc = SCSI_DEVICE_CLASS(klass); |
3088 | ||
a818a4b6 | 3089 | sc->realize = scsi_disk_realize; |
b9eea3e6 AL |
3090 | sc->alloc_req = scsi_new_request; |
3091 | sc->unit_attention_reported = scsi_disk_unit_attention_reported; | |
39bffca2 AL |
3092 | dc->fw_name = "disk"; |
3093 | dc->desc = "virtual SCSI disk or CD-ROM (legacy)"; | |
3094 | dc->reset = scsi_disk_reset; | |
3095 | dc->props = scsi_disk_properties; | |
43b978b9 | 3096 | dc->vmsd = &vmstate_scsi_disk_state; |
b9eea3e6 AL |
3097 | } |
3098 | ||
8c43a6f0 | 3099 | static const TypeInfo scsi_disk_info = { |
39bffca2 | 3100 | .name = "scsi-disk", |
993935f3 | 3101 | .parent = TYPE_SCSI_DISK_BASE, |
39bffca2 | 3102 | .class_init = scsi_disk_class_initfn, |
d52affa7 GH |
3103 | }; |
3104 | ||
83f7d43a | 3105 | static void scsi_disk_register_types(void) |
d52affa7 | 3106 | { |
993935f3 | 3107 | type_register_static(&scsi_disk_base_info); |
39bffca2 AL |
3108 | type_register_static(&scsi_hd_info); |
3109 | type_register_static(&scsi_cd_info); | |
b9eea3e6 | 3110 | #ifdef __linux__ |
39bffca2 | 3111 | type_register_static(&scsi_block_info); |
b9eea3e6 | 3112 | #endif |
39bffca2 | 3113 | type_register_static(&scsi_disk_info); |
8ccc2ace | 3114 | } |
83f7d43a AF |
3115 | |
3116 | type_init(scsi_disk_register_types) |