]>
Commit | Line | Data |
---|---|---|
d52affa7 | 1 | #include "hw.h" |
2f792016 | 2 | #include "qemu-error.h" |
43b443b6 | 3 | #include "scsi.h" |
2ec749cb | 4 | #include "scsi-defs.h" |
d52affa7 | 5 | #include "qdev.h" |
2446333c | 6 | #include "blockdev.h" |
5138efec | 7 | #include "trace.h" |
d52affa7 | 8 | |
db07c0f8 | 9 | static char *scsibus_get_fw_dev_path(DeviceState *dev); |
afa46c46 | 10 | static int scsi_req_parse(SCSICommand *cmd, SCSIDevice *dev, uint8_t *buf); |
b45ef674 PB |
11 | static int scsi_build_sense(uint8_t *in_buf, int in_len, |
12 | uint8_t *buf, int len, bool fixed); | |
db07c0f8 | 13 | |
d52affa7 GH |
14 | static struct BusInfo scsi_bus_info = { |
15 | .name = "SCSI", | |
16 | .size = sizeof(SCSIBus), | |
db07c0f8 | 17 | .get_fw_dev_path = scsibus_get_fw_dev_path, |
d52affa7 GH |
18 | .props = (Property[]) { |
19 | DEFINE_PROP_UINT32("scsi-id", SCSIDevice, id, -1), | |
87dcd1b2 | 20 | DEFINE_PROP_UINT32("lun", SCSIDevice, lun, 0), |
d52affa7 GH |
21 | DEFINE_PROP_END_OF_LIST(), |
22 | }, | |
23 | }; | |
24 | static int next_scsi_bus; | |
25 | ||
26 | /* Create a scsi bus, and attach devices to it. */ | |
ca9c39fa | 27 | void scsi_bus_new(SCSIBus *bus, DeviceState *host, int tcq, int ndev, |
cfdc1bb0 | 28 | const SCSIBusOps *ops) |
d52affa7 | 29 | { |
ca9c39fa | 30 | qbus_create_inplace(&bus->qbus, &scsi_bus_info, host, NULL); |
d52affa7 GH |
31 | bus->busnr = next_scsi_bus++; |
32 | bus->tcq = tcq; | |
33 | bus->ndev = ndev; | |
cfdc1bb0 | 34 | bus->ops = ops; |
cb23117b | 35 | bus->qbus.allow_hotplug = 1; |
d52affa7 GH |
36 | } |
37 | ||
38 | static int scsi_qdev_init(DeviceState *qdev, DeviceInfo *base) | |
39 | { | |
40 | SCSIDevice *dev = DO_UPCAST(SCSIDevice, qdev, qdev); | |
41 | SCSIDeviceInfo *info = DO_UPCAST(SCSIDeviceInfo, qdev, base); | |
42 | SCSIBus *bus = DO_UPCAST(SCSIBus, qbus, dev->qdev.parent_bus); | |
01985dcf | 43 | int rc = -1; |
d52affa7 GH |
44 | |
45 | if (dev->id == -1) { | |
46 | for (dev->id = 0; dev->id < bus->ndev; dev->id++) { | |
47 | if (bus->devs[dev->id] == NULL) | |
48 | break; | |
49 | } | |
50 | } | |
51 | if (dev->id >= bus->ndev) { | |
1ecda02b | 52 | error_report("bad scsi device id: %d", dev->id); |
d52affa7 GH |
53 | goto err; |
54 | } | |
55 | ||
56 | if (bus->devs[dev->id]) { | |
01985dcf | 57 | qdev_free(&bus->devs[dev->id]->qdev); |
d52affa7 GH |
58 | } |
59 | bus->devs[dev->id] = dev; | |
60 | ||
61 | dev->info = info; | |
9af99d98 | 62 | QTAILQ_INIT(&dev->requests); |
01985dcf GH |
63 | rc = dev->info->init(dev); |
64 | if (rc != 0) { | |
65 | bus->devs[dev->id] = NULL; | |
66 | } | |
d52affa7 GH |
67 | |
68 | err: | |
01985dcf GH |
69 | return rc; |
70 | } | |
71 | ||
72 | static int scsi_qdev_exit(DeviceState *qdev) | |
73 | { | |
74 | SCSIDevice *dev = DO_UPCAST(SCSIDevice, qdev, qdev); | |
75 | SCSIBus *bus = DO_UPCAST(SCSIBus, qbus, dev->qdev.parent_bus); | |
76 | ||
77 | assert(bus->devs[dev->id] != NULL); | |
78 | if (bus->devs[dev->id]->info->destroy) { | |
79 | bus->devs[dev->id]->info->destroy(bus->devs[dev->id]); | |
80 | } | |
81 | bus->devs[dev->id] = NULL; | |
82 | return 0; | |
d52affa7 GH |
83 | } |
84 | ||
85 | void scsi_qdev_register(SCSIDeviceInfo *info) | |
86 | { | |
87 | info->qdev.bus_info = &scsi_bus_info; | |
88 | info->qdev.init = scsi_qdev_init; | |
cb23117b | 89 | info->qdev.unplug = qdev_simple_unplug_cb; |
01985dcf | 90 | info->qdev.exit = scsi_qdev_exit; |
d52affa7 GH |
91 | qdev_register(&info->qdev); |
92 | } | |
93 | ||
94 | /* handle legacy '-drive if=scsi,...' cmd line args */ | |
2d1fd261 SH |
95 | SCSIDevice *scsi_bus_legacy_add_drive(SCSIBus *bus, BlockDriverState *bdrv, |
96 | int unit, bool removable) | |
d52affa7 GH |
97 | { |
98 | const char *driver; | |
99 | DeviceState *dev; | |
100 | ||
f8b6cc00 | 101 | driver = bdrv_is_sg(bdrv) ? "scsi-generic" : "scsi-disk"; |
d52affa7 GH |
102 | dev = qdev_create(&bus->qbus, driver); |
103 | qdev_prop_set_uint32(dev, "scsi-id", unit); | |
2d1fd261 SH |
104 | if (qdev_prop_exists(dev, "removable")) { |
105 | qdev_prop_set_bit(dev, "removable", removable); | |
106 | } | |
18846dee MA |
107 | if (qdev_prop_set_drive(dev, "drive", bdrv) < 0) { |
108 | qdev_free(dev); | |
109 | return NULL; | |
110 | } | |
33e66b86 MA |
111 | if (qdev_init(dev) < 0) |
112 | return NULL; | |
d52affa7 GH |
113 | return DO_UPCAST(SCSIDevice, qdev, dev); |
114 | } | |
115 | ||
fa66b909 | 116 | int scsi_bus_legacy_handle_cmdline(SCSIBus *bus) |
d52affa7 | 117 | { |
42e766a2 | 118 | Location loc; |
d52affa7 | 119 | DriveInfo *dinfo; |
fa66b909 | 120 | int res = 0, unit; |
d52affa7 | 121 | |
42e766a2 | 122 | loc_push_none(&loc); |
622b520f | 123 | for (unit = 0; unit < bus->ndev; unit++) { |
d52affa7 GH |
124 | dinfo = drive_get(IF_SCSI, bus->busnr, unit); |
125 | if (dinfo == NULL) { | |
126 | continue; | |
127 | } | |
42e766a2 | 128 | qemu_opts_loc_restore(dinfo->opts); |
2d1fd261 | 129 | if (!scsi_bus_legacy_add_drive(bus, dinfo->bdrv, unit, false)) { |
fa66b909 MA |
130 | res = -1; |
131 | break; | |
132 | } | |
d52affa7 | 133 | } |
42e766a2 | 134 | loc_pop(&loc); |
fa66b909 | 135 | return res; |
d52affa7 | 136 | } |
89b08ae1 | 137 | |
afa46c46 PB |
138 | /* SCSIReqOps implementation for invalid commands. */ |
139 | ||
140 | static int32_t scsi_invalid_command(SCSIRequest *req, uint8_t *buf) | |
141 | { | |
142 | scsi_req_build_sense(req, SENSE_CODE(INVALID_OPCODE)); | |
143 | scsi_req_complete(req, CHECK_CONDITION); | |
144 | return 0; | |
145 | } | |
146 | ||
147 | struct SCSIReqOps reqops_invalid_opcode = { | |
148 | .size = sizeof(SCSIRequest), | |
149 | .send_command = scsi_invalid_command | |
150 | }; | |
151 | ||
fdaef069 PB |
152 | /* SCSIReqOps implementation for REPORT LUNS and for commands sent to |
153 | an invalid LUN. */ | |
154 | ||
155 | typedef struct SCSITargetReq SCSITargetReq; | |
156 | ||
157 | struct SCSITargetReq { | |
158 | SCSIRequest req; | |
159 | int len; | |
160 | uint8_t buf[64]; | |
161 | }; | |
162 | ||
163 | static void store_lun(uint8_t *outbuf, int lun) | |
164 | { | |
165 | if (lun < 256) { | |
166 | outbuf[1] = lun; | |
167 | return; | |
168 | } | |
169 | outbuf[1] = (lun & 255); | |
170 | outbuf[0] = (lun >> 8) | 0x40; | |
171 | } | |
172 | ||
173 | static bool scsi_target_emulate_report_luns(SCSITargetReq *r) | |
174 | { | |
175 | int len; | |
176 | if (r->req.cmd.xfer < 16) { | |
177 | return false; | |
178 | } | |
179 | if (r->req.cmd.buf[2] > 2) { | |
180 | return false; | |
181 | } | |
182 | len = MIN(sizeof r->buf, r->req.cmd.xfer); | |
183 | memset(r->buf, 0, len); | |
184 | if (r->req.dev->lun != 0) { | |
185 | r->buf[3] = 16; | |
186 | r->len = 24; | |
187 | store_lun(&r->buf[16], r->req.dev->lun); | |
188 | } else { | |
189 | r->buf[3] = 8; | |
190 | r->len = 16; | |
191 | } | |
192 | return true; | |
193 | } | |
194 | ||
195 | static bool scsi_target_emulate_inquiry(SCSITargetReq *r) | |
196 | { | |
197 | assert(r->req.dev->lun != r->req.lun); | |
198 | if (r->req.cmd.buf[1] & 0x2) { | |
199 | /* Command support data - optional, not implemented */ | |
200 | return false; | |
201 | } | |
202 | ||
203 | if (r->req.cmd.buf[1] & 0x1) { | |
204 | /* Vital product data */ | |
205 | uint8_t page_code = r->req.cmd.buf[2]; | |
206 | if (r->req.cmd.xfer < 4) { | |
207 | return false; | |
208 | } | |
209 | ||
210 | r->buf[r->len++] = page_code ; /* this page */ | |
211 | r->buf[r->len++] = 0x00; | |
212 | ||
213 | switch (page_code) { | |
214 | case 0x00: /* Supported page codes, mandatory */ | |
215 | { | |
216 | int pages; | |
217 | pages = r->len++; | |
218 | r->buf[r->len++] = 0x00; /* list of supported pages (this page) */ | |
219 | r->buf[pages] = r->len - pages - 1; /* number of pages */ | |
220 | break; | |
221 | } | |
222 | default: | |
223 | return false; | |
224 | } | |
225 | /* done with EVPD */ | |
226 | assert(r->len < sizeof(r->buf)); | |
227 | r->len = MIN(r->req.cmd.xfer, r->len); | |
228 | return true; | |
229 | } | |
230 | ||
231 | /* Standard INQUIRY data */ | |
232 | if (r->req.cmd.buf[2] != 0) { | |
233 | return false; | |
234 | } | |
235 | ||
236 | /* PAGE CODE == 0 */ | |
237 | if (r->req.cmd.xfer < 5) { | |
238 | return -1; | |
239 | } | |
240 | ||
241 | r->len = MIN(r->req.cmd.xfer, 36); | |
242 | memset(r->buf, 0, r->len); | |
243 | if (r->req.lun != 0) { | |
244 | r->buf[0] = TYPE_NO_LUN; | |
245 | } else { | |
246 | r->buf[0] = TYPE_NOT_PRESENT | TYPE_INACTIVE; | |
247 | r->buf[2] = 5; /* Version */ | |
248 | r->buf[3] = 2 | 0x10; /* HiSup, response data format */ | |
249 | r->buf[4] = r->len - 5; /* Additional Length = (Len - 1) - 4 */ | |
250 | r->buf[7] = 0x10 | (r->req.bus->tcq ? 0x02 : 0); /* Sync, TCQ. */ | |
251 | memcpy(&r->buf[8], "QEMU ", 8); | |
252 | memcpy(&r->buf[16], "QEMU TARGET ", 16); | |
253 | strncpy((char *) &r->buf[32], QEMU_VERSION, 4); | |
254 | } | |
255 | return true; | |
256 | } | |
257 | ||
258 | static int32_t scsi_target_send_command(SCSIRequest *req, uint8_t *buf) | |
259 | { | |
260 | SCSITargetReq *r = DO_UPCAST(SCSITargetReq, req, req); | |
261 | ||
262 | switch (buf[0]) { | |
263 | case REPORT_LUNS: | |
264 | if (!scsi_target_emulate_report_luns(r)) { | |
265 | goto illegal_request; | |
266 | } | |
267 | break; | |
268 | case INQUIRY: | |
269 | if (!scsi_target_emulate_inquiry(r)) { | |
270 | goto illegal_request; | |
271 | } | |
272 | break; | |
273 | default: | |
274 | scsi_req_build_sense(req, SENSE_CODE(LUN_NOT_SUPPORTED)); | |
275 | scsi_req_complete(req, CHECK_CONDITION); | |
276 | return 0; | |
277 | illegal_request: | |
278 | scsi_req_build_sense(req, SENSE_CODE(INVALID_FIELD)); | |
279 | scsi_req_complete(req, CHECK_CONDITION); | |
280 | return 0; | |
281 | } | |
282 | ||
283 | if (!r->len) { | |
284 | scsi_req_complete(req, GOOD); | |
285 | } | |
286 | return r->len; | |
287 | } | |
288 | ||
289 | static void scsi_target_read_data(SCSIRequest *req) | |
290 | { | |
291 | SCSITargetReq *r = DO_UPCAST(SCSITargetReq, req, req); | |
292 | uint32_t n; | |
293 | ||
294 | n = r->len; | |
295 | if (n > 0) { | |
296 | r->len = 0; | |
297 | scsi_req_data(&r->req, n); | |
298 | } else { | |
299 | scsi_req_complete(&r->req, GOOD); | |
300 | } | |
301 | } | |
302 | ||
303 | static uint8_t *scsi_target_get_buf(SCSIRequest *req) | |
304 | { | |
305 | SCSITargetReq *r = DO_UPCAST(SCSITargetReq, req, req); | |
306 | ||
307 | return r->buf; | |
308 | } | |
309 | ||
310 | struct SCSIReqOps reqops_target_command = { | |
311 | .size = sizeof(SCSITargetReq), | |
312 | .send_command = scsi_target_send_command, | |
313 | .read_data = scsi_target_read_data, | |
314 | .get_buf = scsi_target_get_buf, | |
315 | }; | |
316 | ||
317 | ||
8dbd4574 | 318 | SCSIRequest *scsi_req_alloc(SCSIReqOps *reqops, SCSIDevice *d, uint32_t tag, |
c5bf71a9 | 319 | uint32_t lun, void *hba_private) |
89b08ae1 GH |
320 | { |
321 | SCSIRequest *req; | |
322 | ||
8dbd4574 | 323 | req = qemu_mallocz(reqops->size); |
5c6c0e51 | 324 | req->refcount = 1; |
89b08ae1 GH |
325 | req->bus = scsi_bus_from_device(d); |
326 | req->dev = d; | |
327 | req->tag = tag; | |
328 | req->lun = lun; | |
c5bf71a9 | 329 | req->hba_private = hba_private; |
ed3a34a3 | 330 | req->status = -1; |
b45ef674 | 331 | req->sense_len = 0; |
8dbd4574 | 332 | req->ops = reqops; |
5138efec | 333 | trace_scsi_req_alloc(req->dev->id, req->lun, req->tag); |
89b08ae1 GH |
334 | return req; |
335 | } | |
336 | ||
c5bf71a9 | 337 | SCSIRequest *scsi_req_new(SCSIDevice *d, uint32_t tag, uint32_t lun, |
c39ce112 | 338 | uint8_t *buf, void *hba_private) |
43a2b339 | 339 | { |
c39ce112 | 340 | SCSIRequest *req; |
afa46c46 PB |
341 | SCSICommand cmd; |
342 | ||
343 | if (scsi_req_parse(&cmd, d, buf) != 0) { | |
344 | trace_scsi_req_parse_bad(d->id, lun, tag, buf[0]); | |
345 | req = scsi_req_alloc(&reqops_invalid_opcode, d, tag, lun, hba_private); | |
346 | } else { | |
347 | trace_scsi_req_parsed(d->id, lun, tag, buf[0], | |
348 | cmd.mode, cmd.xfer); | |
349 | if (req->cmd.lba != -1) { | |
350 | trace_scsi_req_parsed_lba(d->id, lun, tag, buf[0], | |
351 | cmd.lba); | |
352 | } | |
fdaef069 PB |
353 | |
354 | if ((lun != d->lun && buf[0] != REQUEST_SENSE) || | |
355 | buf[0] == REPORT_LUNS) { | |
356 | req = scsi_req_alloc(&reqops_target_command, d, tag, lun, | |
357 | hba_private); | |
358 | } else { | |
359 | req = d->info->alloc_req(d, tag, lun, hba_private); | |
360 | } | |
afa46c46 PB |
361 | } |
362 | ||
363 | req->cmd = cmd; | |
c39ce112 | 364 | return req; |
43a2b339 PB |
365 | } |
366 | ||
0c34459b PB |
367 | uint8_t *scsi_req_get_buf(SCSIRequest *req) |
368 | { | |
12010e7b | 369 | return req->ops->get_buf(req); |
0c34459b PB |
370 | } |
371 | ||
74382217 HR |
372 | int scsi_req_get_sense(SCSIRequest *req, uint8_t *buf, int len) |
373 | { | |
b45ef674 PB |
374 | assert(len >= 14); |
375 | if (!req->sense_len) { | |
74382217 HR |
376 | return 0; |
377 | } | |
b45ef674 PB |
378 | return scsi_build_sense(req->sense, req->sense_len, buf, len, true); |
379 | } | |
380 | ||
381 | int scsi_device_get_sense(SCSIDevice *dev, uint8_t *buf, int len, bool fixed) | |
382 | { | |
383 | return scsi_build_sense(dev->sense, dev->sense_len, buf, len, fixed); | |
384 | } | |
385 | ||
386 | void scsi_req_build_sense(SCSIRequest *req, SCSISense sense) | |
387 | { | |
388 | trace_scsi_req_build_sense(req->dev->id, req->lun, req->tag, | |
389 | sense.key, sense.asc, sense.ascq); | |
390 | memset(req->sense, 0, 18); | |
391 | req->sense[0] = 0xf0; | |
392 | req->sense[2] = sense.key; | |
393 | req->sense[12] = sense.asc; | |
394 | req->sense[13] = sense.ascq; | |
395 | req->sense_len = 18; | |
74382217 HR |
396 | } |
397 | ||
c39ce112 | 398 | int32_t scsi_req_enqueue(SCSIRequest *req) |
89b08ae1 | 399 | { |
fc4f0754 PB |
400 | int32_t rc; |
401 | ||
5c6c0e51 HR |
402 | assert(!req->enqueued); |
403 | scsi_req_ref(req); | |
404 | req->enqueued = true; | |
405 | QTAILQ_INSERT_TAIL(&req->dev->requests, req, next); | |
fc4f0754 PB |
406 | |
407 | scsi_req_ref(req); | |
c39ce112 | 408 | rc = req->ops->send_command(req, req->cmd.buf); |
fc4f0754 PB |
409 | scsi_req_unref(req); |
410 | return rc; | |
89b08ae1 GH |
411 | } |
412 | ||
a1f0cce2 | 413 | static void scsi_req_dequeue(SCSIRequest *req) |
e8637c90 | 414 | { |
5138efec | 415 | trace_scsi_req_dequeue(req->dev->id, req->lun, req->tag); |
e8637c90 JK |
416 | if (req->enqueued) { |
417 | QTAILQ_REMOVE(&req->dev->requests, req, next); | |
418 | req->enqueued = false; | |
ad2d30f7 | 419 | scsi_req_unref(req); |
e8637c90 JK |
420 | } |
421 | } | |
422 | ||
2599aece | 423 | static int scsi_req_length(SCSICommand *cmd, SCSIDevice *dev, uint8_t *buf) |
2ec749cb | 424 | { |
2599aece | 425 | switch (buf[0] >> 5) { |
2ec749cb | 426 | case 0: |
2599aece PB |
427 | cmd->xfer = buf[4]; |
428 | cmd->len = 6; | |
2ec749cb | 429 | /* length 0 means 256 blocks */ |
2599aece PB |
430 | if (cmd->xfer == 0) { |
431 | cmd->xfer = 256; | |
432 | } | |
2ec749cb GH |
433 | break; |
434 | case 1: | |
435 | case 2: | |
2599aece PB |
436 | cmd->xfer = buf[8] | (buf[7] << 8); |
437 | cmd->len = 10; | |
2ec749cb GH |
438 | break; |
439 | case 4: | |
2599aece PB |
440 | cmd->xfer = buf[13] | (buf[12] << 8) | (buf[11] << 16) | (buf[10] << 24); |
441 | cmd->len = 16; | |
2ec749cb GH |
442 | break; |
443 | case 5: | |
2599aece PB |
444 | cmd->xfer = buf[9] | (buf[8] << 8) | (buf[7] << 16) | (buf[6] << 24); |
445 | cmd->len = 12; | |
2ec749cb GH |
446 | break; |
447 | default: | |
448 | return -1; | |
449 | } | |
450 | ||
2599aece | 451 | switch (buf[0]) { |
2ec749cb | 452 | case TEST_UNIT_READY: |
5e30a07d | 453 | case REWIND: |
2ec749cb GH |
454 | case START_STOP: |
455 | case SEEK_6: | |
456 | case WRITE_FILEMARKS: | |
457 | case SPACE: | |
a5e3d9ef BK |
458 | case RESERVE: |
459 | case RELEASE: | |
2ec749cb GH |
460 | case ERASE: |
461 | case ALLOW_MEDIUM_REMOVAL: | |
5e30a07d | 462 | case VERIFY_10: |
2ec749cb GH |
463 | case SEEK_10: |
464 | case SYNCHRONIZE_CACHE: | |
465 | case LOCK_UNLOCK_CACHE: | |
466 | case LOAD_UNLOAD: | |
467 | case SET_CD_SPEED: | |
468 | case SET_LIMITS: | |
5e30a07d | 469 | case WRITE_LONG_10: |
2ec749cb GH |
470 | case MOVE_MEDIUM: |
471 | case UPDATE_BLOCK: | |
2599aece | 472 | cmd->xfer = 0; |
2ec749cb GH |
473 | break; |
474 | case MODE_SENSE: | |
475 | break; | |
5e30a07d | 476 | case WRITE_SAME_10: |
2599aece | 477 | cmd->xfer = 1; |
2ec749cb | 478 | break; |
5e30a07d | 479 | case READ_CAPACITY_10: |
2599aece | 480 | cmd->xfer = 8; |
2ec749cb GH |
481 | break; |
482 | case READ_BLOCK_LIMITS: | |
2599aece | 483 | cmd->xfer = 6; |
2ec749cb GH |
484 | break; |
485 | case READ_POSITION: | |
2599aece | 486 | cmd->xfer = 20; |
2ec749cb GH |
487 | break; |
488 | case SEND_VOLUME_TAG: | |
2599aece | 489 | cmd->xfer *= 40; |
2ec749cb GH |
490 | break; |
491 | case MEDIUM_SCAN: | |
2599aece | 492 | cmd->xfer *= 8; |
2ec749cb GH |
493 | break; |
494 | case WRITE_10: | |
5e30a07d | 495 | case WRITE_VERIFY_10: |
2ec749cb GH |
496 | case WRITE_6: |
497 | case WRITE_12: | |
498 | case WRITE_VERIFY_12: | |
bd536cf3 GH |
499 | case WRITE_16: |
500 | case WRITE_VERIFY_16: | |
2599aece | 501 | cmd->xfer *= dev->blocksize; |
2ec749cb GH |
502 | break; |
503 | case READ_10: | |
504 | case READ_6: | |
505 | case READ_REVERSE: | |
506 | case RECOVER_BUFFERED_DATA: | |
507 | case READ_12: | |
bd536cf3 | 508 | case READ_16: |
2599aece | 509 | cmd->xfer *= dev->blocksize; |
2ec749cb GH |
510 | break; |
511 | case INQUIRY: | |
2599aece | 512 | cmd->xfer = buf[4] | (buf[3] << 8); |
2ec749cb | 513 | break; |
c7126d5b NB |
514 | case MAINTENANCE_OUT: |
515 | case MAINTENANCE_IN: | |
2599aece | 516 | if (dev->type == TYPE_ROM) { |
c7126d5b | 517 | /* GPCMD_REPORT_KEY and GPCMD_SEND_KEY from multi media commands */ |
2599aece | 518 | cmd->xfer = buf[9] | (buf[8] << 8); |
c7126d5b NB |
519 | } |
520 | break; | |
2ec749cb GH |
521 | } |
522 | return 0; | |
523 | } | |
524 | ||
2599aece | 525 | static int scsi_req_stream_length(SCSICommand *cmd, SCSIDevice *dev, uint8_t *buf) |
2ec749cb | 526 | { |
2599aece | 527 | switch (buf[0]) { |
2ec749cb GH |
528 | /* stream commands */ |
529 | case READ_6: | |
530 | case READ_REVERSE: | |
531 | case RECOVER_BUFFERED_DATA: | |
532 | case WRITE_6: | |
2599aece PB |
533 | cmd->len = 6; |
534 | cmd->xfer = buf[4] | (buf[3] << 8) | (buf[2] << 16); | |
535 | if (buf[1] & 0x01) { /* fixed */ | |
536 | cmd->xfer *= dev->blocksize; | |
537 | } | |
2ec749cb GH |
538 | break; |
539 | case REWIND: | |
540 | case START_STOP: | |
2599aece PB |
541 | cmd->len = 6; |
542 | cmd->xfer = 0; | |
2ec749cb GH |
543 | break; |
544 | /* generic commands */ | |
545 | default: | |
2599aece | 546 | return scsi_req_length(cmd, dev, buf); |
2ec749cb GH |
547 | } |
548 | return 0; | |
549 | } | |
550 | ||
2599aece | 551 | static void scsi_cmd_xfer_mode(SCSICommand *cmd) |
97a06435 | 552 | { |
2599aece | 553 | switch (cmd->buf[0]) { |
97a06435 GH |
554 | case WRITE_6: |
555 | case WRITE_10: | |
5e30a07d | 556 | case WRITE_VERIFY_10: |
97a06435 GH |
557 | case WRITE_12: |
558 | case WRITE_VERIFY_12: | |
bd536cf3 GH |
559 | case WRITE_16: |
560 | case WRITE_VERIFY_16: | |
97a06435 GH |
561 | case COPY: |
562 | case COPY_VERIFY: | |
563 | case COMPARE: | |
564 | case CHANGE_DEFINITION: | |
565 | case LOG_SELECT: | |
566 | case MODE_SELECT: | |
567 | case MODE_SELECT_10: | |
568 | case SEND_DIAGNOSTIC: | |
569 | case WRITE_BUFFER: | |
570 | case FORMAT_UNIT: | |
571 | case REASSIGN_BLOCKS: | |
97a06435 GH |
572 | case SEARCH_EQUAL: |
573 | case SEARCH_HIGH: | |
574 | case SEARCH_LOW: | |
575 | case UPDATE_BLOCK: | |
5e30a07d HR |
576 | case WRITE_LONG_10: |
577 | case WRITE_SAME_10: | |
97a06435 GH |
578 | case SEARCH_HIGH_12: |
579 | case SEARCH_EQUAL_12: | |
580 | case SEARCH_LOW_12: | |
97a06435 GH |
581 | case MEDIUM_SCAN: |
582 | case SEND_VOLUME_TAG: | |
01bedeba | 583 | case PERSISTENT_RESERVE_OUT: |
c7126d5b | 584 | case MAINTENANCE_OUT: |
2599aece | 585 | cmd->mode = SCSI_XFER_TO_DEV; |
97a06435 GH |
586 | break; |
587 | default: | |
2599aece PB |
588 | if (cmd->xfer) |
589 | cmd->mode = SCSI_XFER_FROM_DEV; | |
97a06435 | 590 | else { |
2599aece | 591 | cmd->mode = SCSI_XFER_NONE; |
97a06435 GH |
592 | } |
593 | break; | |
594 | } | |
595 | } | |
596 | ||
2599aece | 597 | static uint64_t scsi_cmd_lba(SCSICommand *cmd) |
2ec749cb | 598 | { |
2599aece | 599 | uint8_t *buf = cmd->buf; |
2ec749cb GH |
600 | uint64_t lba; |
601 | ||
602 | switch (buf[0] >> 5) { | |
603 | case 0: | |
604 | lba = (uint64_t) buf[3] | ((uint64_t) buf[2] << 8) | | |
605 | (((uint64_t) buf[1] & 0x1f) << 16); | |
606 | break; | |
607 | case 1: | |
608 | case 2: | |
609 | lba = (uint64_t) buf[5] | ((uint64_t) buf[4] << 8) | | |
610 | ((uint64_t) buf[3] << 16) | ((uint64_t) buf[2] << 24); | |
611 | break; | |
612 | case 4: | |
613 | lba = (uint64_t) buf[9] | ((uint64_t) buf[8] << 8) | | |
614 | ((uint64_t) buf[7] << 16) | ((uint64_t) buf[6] << 24) | | |
615 | ((uint64_t) buf[5] << 32) | ((uint64_t) buf[4] << 40) | | |
616 | ((uint64_t) buf[3] << 48) | ((uint64_t) buf[2] << 56); | |
617 | break; | |
618 | case 5: | |
619 | lba = (uint64_t) buf[5] | ((uint64_t) buf[4] << 8) | | |
620 | ((uint64_t) buf[3] << 16) | ((uint64_t) buf[2] << 24); | |
621 | break; | |
622 | default: | |
623 | lba = -1; | |
624 | ||
625 | } | |
626 | return lba; | |
627 | } | |
628 | ||
afa46c46 | 629 | int scsi_req_parse(SCSICommand *cmd, SCSIDevice *dev, uint8_t *buf) |
2ec749cb GH |
630 | { |
631 | int rc; | |
632 | ||
afa46c46 PB |
633 | if (dev->type == TYPE_TAPE) { |
634 | rc = scsi_req_stream_length(cmd, dev, buf); | |
2ec749cb | 635 | } else { |
afa46c46 | 636 | rc = scsi_req_length(cmd, dev, buf); |
2ec749cb GH |
637 | } |
638 | if (rc != 0) | |
639 | return rc; | |
640 | ||
afa46c46 PB |
641 | memcpy(cmd->buf, buf, cmd->len); |
642 | scsi_cmd_xfer_mode(cmd); | |
643 | cmd->lba = scsi_cmd_lba(cmd); | |
2ec749cb GH |
644 | return 0; |
645 | } | |
ed3a34a3 | 646 | |
a1f0cce2 HR |
647 | /* |
648 | * Predefined sense codes | |
649 | */ | |
650 | ||
651 | /* No sense data available */ | |
652 | const struct SCSISense sense_code_NO_SENSE = { | |
653 | .key = NO_SENSE , .asc = 0x00 , .ascq = 0x00 | |
654 | }; | |
655 | ||
656 | /* LUN not ready, Manual intervention required */ | |
657 | const struct SCSISense sense_code_LUN_NOT_READY = { | |
658 | .key = NOT_READY, .asc = 0x04, .ascq = 0x03 | |
659 | }; | |
660 | ||
661 | /* LUN not ready, Medium not present */ | |
662 | const struct SCSISense sense_code_NO_MEDIUM = { | |
663 | .key = NOT_READY, .asc = 0x3a, .ascq = 0x00 | |
664 | }; | |
665 | ||
666 | /* Hardware error, internal target failure */ | |
667 | const struct SCSISense sense_code_TARGET_FAILURE = { | |
668 | .key = HARDWARE_ERROR, .asc = 0x44, .ascq = 0x00 | |
669 | }; | |
670 | ||
671 | /* Illegal request, invalid command operation code */ | |
672 | const struct SCSISense sense_code_INVALID_OPCODE = { | |
673 | .key = ILLEGAL_REQUEST, .asc = 0x20, .ascq = 0x00 | |
674 | }; | |
675 | ||
676 | /* Illegal request, LBA out of range */ | |
677 | const struct SCSISense sense_code_LBA_OUT_OF_RANGE = { | |
678 | .key = ILLEGAL_REQUEST, .asc = 0x21, .ascq = 0x00 | |
679 | }; | |
680 | ||
681 | /* Illegal request, Invalid field in CDB */ | |
682 | const struct SCSISense sense_code_INVALID_FIELD = { | |
683 | .key = ILLEGAL_REQUEST, .asc = 0x24, .ascq = 0x00 | |
684 | }; | |
685 | ||
686 | /* Illegal request, LUN not supported */ | |
687 | const struct SCSISense sense_code_LUN_NOT_SUPPORTED = { | |
688 | .key = ILLEGAL_REQUEST, .asc = 0x25, .ascq = 0x00 | |
689 | }; | |
690 | ||
691 | /* Command aborted, I/O process terminated */ | |
692 | const struct SCSISense sense_code_IO_ERROR = { | |
693 | .key = ABORTED_COMMAND, .asc = 0x00, .ascq = 0x06 | |
694 | }; | |
695 | ||
696 | /* Command aborted, I_T Nexus loss occurred */ | |
697 | const struct SCSISense sense_code_I_T_NEXUS_LOSS = { | |
698 | .key = ABORTED_COMMAND, .asc = 0x29, .ascq = 0x07 | |
699 | }; | |
700 | ||
701 | /* Command aborted, Logical Unit failure */ | |
702 | const struct SCSISense sense_code_LUN_FAILURE = { | |
703 | .key = ABORTED_COMMAND, .asc = 0x3e, .ascq = 0x01 | |
704 | }; | |
705 | ||
706 | /* | |
707 | * scsi_build_sense | |
708 | * | |
b45ef674 | 709 | * Convert between fixed and descriptor sense buffers |
a1f0cce2 | 710 | */ |
b45ef674 PB |
711 | int scsi_build_sense(uint8_t *in_buf, int in_len, |
712 | uint8_t *buf, int len, bool fixed) | |
a1f0cce2 | 713 | { |
b45ef674 PB |
714 | bool fixed_in; |
715 | SCSISense sense; | |
a1f0cce2 HR |
716 | if (!fixed && len < 8) { |
717 | return 0; | |
718 | } | |
719 | ||
b45ef674 PB |
720 | if (in_len == 0) { |
721 | sense.key = NO_SENSE; | |
722 | sense.asc = 0; | |
723 | sense.ascq = 0; | |
724 | } else { | |
725 | fixed_in = (in_buf[0] & 2) == 0; | |
726 | ||
727 | if (fixed == fixed_in) { | |
728 | memcpy(buf, in_buf, MIN(len, in_len)); | |
729 | return MIN(len, in_len); | |
730 | } | |
731 | ||
732 | if (fixed_in) { | |
733 | sense.key = in_buf[2]; | |
734 | sense.asc = in_buf[12]; | |
735 | sense.ascq = in_buf[13]; | |
736 | } else { | |
737 | sense.key = in_buf[1]; | |
738 | sense.asc = in_buf[2]; | |
739 | sense.ascq = in_buf[3]; | |
740 | } | |
741 | } | |
742 | ||
a1f0cce2 HR |
743 | memset(buf, 0, len); |
744 | if (fixed) { | |
745 | /* Return fixed format sense buffer */ | |
746 | buf[0] = 0xf0; | |
747 | buf[2] = sense.key; | |
748 | buf[7] = 7; | |
749 | buf[12] = sense.asc; | |
750 | buf[13] = sense.ascq; | |
751 | return MIN(len, 18); | |
752 | } else { | |
753 | /* Return descriptor format sense buffer */ | |
754 | buf[0] = 0x72; | |
755 | buf[1] = sense.key; | |
756 | buf[2] = sense.asc; | |
757 | buf[3] = sense.ascq; | |
758 | return 8; | |
759 | } | |
760 | } | |
761 | ||
ec766865 GH |
762 | static const char *scsi_command_name(uint8_t cmd) |
763 | { | |
764 | static const char *names[] = { | |
765 | [ TEST_UNIT_READY ] = "TEST_UNIT_READY", | |
5e30a07d | 766 | [ REWIND ] = "REWIND", |
ec766865 GH |
767 | [ REQUEST_SENSE ] = "REQUEST_SENSE", |
768 | [ FORMAT_UNIT ] = "FORMAT_UNIT", | |
769 | [ READ_BLOCK_LIMITS ] = "READ_BLOCK_LIMITS", | |
770 | [ REASSIGN_BLOCKS ] = "REASSIGN_BLOCKS", | |
771 | [ READ_6 ] = "READ_6", | |
772 | [ WRITE_6 ] = "WRITE_6", | |
773 | [ SEEK_6 ] = "SEEK_6", | |
774 | [ READ_REVERSE ] = "READ_REVERSE", | |
775 | [ WRITE_FILEMARKS ] = "WRITE_FILEMARKS", | |
776 | [ SPACE ] = "SPACE", | |
777 | [ INQUIRY ] = "INQUIRY", | |
778 | [ RECOVER_BUFFERED_DATA ] = "RECOVER_BUFFERED_DATA", | |
c7126d5b NB |
779 | [ MAINTENANCE_IN ] = "MAINTENANCE_IN", |
780 | [ MAINTENANCE_OUT ] = "MAINTENANCE_OUT", | |
ec766865 GH |
781 | [ MODE_SELECT ] = "MODE_SELECT", |
782 | [ RESERVE ] = "RESERVE", | |
783 | [ RELEASE ] = "RELEASE", | |
784 | [ COPY ] = "COPY", | |
785 | [ ERASE ] = "ERASE", | |
786 | [ MODE_SENSE ] = "MODE_SENSE", | |
787 | [ START_STOP ] = "START_STOP", | |
788 | [ RECEIVE_DIAGNOSTIC ] = "RECEIVE_DIAGNOSTIC", | |
789 | [ SEND_DIAGNOSTIC ] = "SEND_DIAGNOSTIC", | |
790 | [ ALLOW_MEDIUM_REMOVAL ] = "ALLOW_MEDIUM_REMOVAL", | |
5e30a07d | 791 | [ READ_CAPACITY_10 ] = "READ_CAPACITY_10", |
ec766865 GH |
792 | [ READ_10 ] = "READ_10", |
793 | [ WRITE_10 ] = "WRITE_10", | |
794 | [ SEEK_10 ] = "SEEK_10", | |
5e30a07d HR |
795 | [ WRITE_VERIFY_10 ] = "WRITE_VERIFY_10", |
796 | [ VERIFY_10 ] = "VERIFY_10", | |
ec766865 GH |
797 | [ SEARCH_HIGH ] = "SEARCH_HIGH", |
798 | [ SEARCH_EQUAL ] = "SEARCH_EQUAL", | |
799 | [ SEARCH_LOW ] = "SEARCH_LOW", | |
800 | [ SET_LIMITS ] = "SET_LIMITS", | |
801 | [ PRE_FETCH ] = "PRE_FETCH", | |
545557d4 | 802 | /* READ_POSITION and PRE_FETCH use the same operation code */ |
ec766865 GH |
803 | [ SYNCHRONIZE_CACHE ] = "SYNCHRONIZE_CACHE", |
804 | [ LOCK_UNLOCK_CACHE ] = "LOCK_UNLOCK_CACHE", | |
805 | [ READ_DEFECT_DATA ] = "READ_DEFECT_DATA", | |
806 | [ MEDIUM_SCAN ] = "MEDIUM_SCAN", | |
807 | [ COMPARE ] = "COMPARE", | |
808 | [ COPY_VERIFY ] = "COPY_VERIFY", | |
809 | [ WRITE_BUFFER ] = "WRITE_BUFFER", | |
810 | [ READ_BUFFER ] = "READ_BUFFER", | |
811 | [ UPDATE_BLOCK ] = "UPDATE_BLOCK", | |
5e30a07d HR |
812 | [ READ_LONG_10 ] = "READ_LONG_10", |
813 | [ WRITE_LONG_10 ] = "WRITE_LONG_10", | |
ec766865 | 814 | [ CHANGE_DEFINITION ] = "CHANGE_DEFINITION", |
5e30a07d HR |
815 | [ WRITE_SAME_10 ] = "WRITE_SAME_10", |
816 | [ UNMAP ] = "UNMAP", | |
ec766865 | 817 | [ READ_TOC ] = "READ_TOC", |
5e30a07d HR |
818 | [ REPORT_DENSITY_SUPPORT ] = "REPORT_DENSITY_SUPPORT", |
819 | [ GET_CONFIGURATION ] = "GET_CONFIGURATION", | |
ec766865 GH |
820 | [ LOG_SELECT ] = "LOG_SELECT", |
821 | [ LOG_SENSE ] = "LOG_SENSE", | |
822 | [ MODE_SELECT_10 ] = "MODE_SELECT_10", | |
823 | [ RESERVE_10 ] = "RESERVE_10", | |
824 | [ RELEASE_10 ] = "RELEASE_10", | |
825 | [ MODE_SENSE_10 ] = "MODE_SENSE_10", | |
826 | [ PERSISTENT_RESERVE_IN ] = "PERSISTENT_RESERVE_IN", | |
827 | [ PERSISTENT_RESERVE_OUT ] = "PERSISTENT_RESERVE_OUT", | |
5e30a07d HR |
828 | [ WRITE_FILEMARKS_16 ] = "WRITE_FILEMARKS_16", |
829 | [ EXTENDED_COPY ] = "EXTENDED_COPY", | |
830 | [ ATA_PASSTHROUGH ] = "ATA_PASSTHROUGH", | |
831 | [ ACCESS_CONTROL_IN ] = "ACCESS_CONTROL_IN", | |
832 | [ ACCESS_CONTROL_OUT ] = "ACCESS_CONTROL_OUT", | |
833 | [ READ_16 ] = "READ_16", | |
834 | [ COMPARE_AND_WRITE ] = "COMPARE_AND_WRITE", | |
835 | [ WRITE_16 ] = "WRITE_16", | |
836 | [ WRITE_VERIFY_16 ] = "WRITE_VERIFY_16", | |
837 | [ VERIFY_16 ] = "VERIFY_16", | |
838 | [ SYNCHRONIZE_CACHE_16 ] = "SYNCHRONIZE_CACHE_16", | |
839 | [ LOCATE_16 ] = "LOCATE_16", | |
840 | [ WRITE_SAME_16 ] = "WRITE_SAME_16", | |
841 | [ ERASE_16 ] = "ERASE_16", | |
842 | [ SERVICE_ACTION_IN ] = "SERVICE_ACTION_IN", | |
843 | [ WRITE_LONG_16 ] = "WRITE_LONG_16", | |
844 | [ REPORT_LUNS ] = "REPORT_LUNS", | |
845 | [ BLANK ] = "BLANK", | |
846 | [ MAINTENANCE_IN ] = "MAINTENANCE_IN", | |
847 | [ MAINTENANCE_OUT ] = "MAINTENANCE_OUT", | |
ec766865 | 848 | [ MOVE_MEDIUM ] = "MOVE_MEDIUM", |
5e30a07d | 849 | [ LOAD_UNLOAD ] = "LOAD_UNLOAD", |
ec766865 GH |
850 | [ READ_12 ] = "READ_12", |
851 | [ WRITE_12 ] = "WRITE_12", | |
852 | [ WRITE_VERIFY_12 ] = "WRITE_VERIFY_12", | |
5e30a07d | 853 | [ VERIFY_12 ] = "VERIFY_12", |
ec766865 GH |
854 | [ SEARCH_HIGH_12 ] = "SEARCH_HIGH_12", |
855 | [ SEARCH_EQUAL_12 ] = "SEARCH_EQUAL_12", | |
856 | [ SEARCH_LOW_12 ] = "SEARCH_LOW_12", | |
857 | [ READ_ELEMENT_STATUS ] = "READ_ELEMENT_STATUS", | |
858 | [ SEND_VOLUME_TAG ] = "SEND_VOLUME_TAG", | |
5e30a07d | 859 | [ READ_DEFECT_DATA_12 ] = "READ_DEFECT_DATA_12", |
ec766865 | 860 | [ SET_CD_SPEED ] = "SET_CD_SPEED", |
ec766865 GH |
861 | }; |
862 | ||
863 | if (cmd >= ARRAY_SIZE(names) || names[cmd] == NULL) | |
864 | return "*UNKNOWN*"; | |
865 | return names[cmd]; | |
866 | } | |
867 | ||
ad2d30f7 PB |
868 | SCSIRequest *scsi_req_ref(SCSIRequest *req) |
869 | { | |
870 | req->refcount++; | |
871 | return req; | |
872 | } | |
873 | ||
874 | void scsi_req_unref(SCSIRequest *req) | |
875 | { | |
876 | if (--req->refcount == 0) { | |
12010e7b PB |
877 | if (req->ops->free_req) { |
878 | req->ops->free_req(req); | |
ad2d30f7 PB |
879 | } |
880 | qemu_free(req); | |
881 | } | |
882 | } | |
883 | ||
ad3376cc PB |
884 | /* Tell the device that we finished processing this chunk of I/O. It |
885 | will start the next chunk or complete the command. */ | |
886 | void scsi_req_continue(SCSIRequest *req) | |
887 | { | |
888 | trace_scsi_req_continue(req->dev->id, req->lun, req->tag); | |
889 | if (req->cmd.mode == SCSI_XFER_TO_DEV) { | |
12010e7b | 890 | req->ops->write_data(req); |
ad3376cc | 891 | } else { |
12010e7b | 892 | req->ops->read_data(req); |
ad3376cc PB |
893 | } |
894 | } | |
895 | ||
ab9adc88 PB |
896 | /* Called by the devices when data is ready for the HBA. The HBA should |
897 | start a DMA operation to read or fill the device's data buffer. | |
ad3376cc | 898 | Once it completes, calling scsi_req_continue will restart I/O. */ |
ab9adc88 PB |
899 | void scsi_req_data(SCSIRequest *req, int len) |
900 | { | |
901 | trace_scsi_req_data(req->dev->id, req->lun, req->tag, len); | |
c6df7102 | 902 | req->bus->ops->transfer_data(req, len); |
ab9adc88 PB |
903 | } |
904 | ||
ec766865 GH |
905 | void scsi_req_print(SCSIRequest *req) |
906 | { | |
907 | FILE *fp = stderr; | |
908 | int i; | |
909 | ||
910 | fprintf(fp, "[%s id=%d] %s", | |
911 | req->dev->qdev.parent_bus->name, | |
912 | req->dev->id, | |
913 | scsi_command_name(req->cmd.buf[0])); | |
914 | for (i = 1; i < req->cmd.len; i++) { | |
915 | fprintf(fp, " 0x%02x", req->cmd.buf[i]); | |
916 | } | |
917 | switch (req->cmd.mode) { | |
918 | case SCSI_XFER_NONE: | |
919 | fprintf(fp, " - none\n"); | |
920 | break; | |
921 | case SCSI_XFER_FROM_DEV: | |
922 | fprintf(fp, " - from-dev len=%zd\n", req->cmd.xfer); | |
923 | break; | |
924 | case SCSI_XFER_TO_DEV: | |
925 | fprintf(fp, " - to-dev len=%zd\n", req->cmd.xfer); | |
926 | break; | |
927 | default: | |
928 | fprintf(fp, " - Oops\n"); | |
929 | break; | |
930 | } | |
931 | } | |
932 | ||
682a9b21 | 933 | void scsi_req_complete(SCSIRequest *req, int status) |
ed3a34a3 | 934 | { |
682a9b21 PB |
935 | assert(req->status == -1); |
936 | req->status = status; | |
b45ef674 PB |
937 | |
938 | assert(req->sense_len < sizeof(req->sense)); | |
939 | if (status == GOOD) { | |
940 | req->sense_len = 0; | |
941 | } | |
942 | ||
943 | if (req->sense_len) { | |
944 | memcpy(req->dev->sense, req->sense, req->sense_len); | |
945 | } | |
946 | req->dev->sense_len = req->sense_len; | |
947 | ||
ad2d30f7 | 948 | scsi_req_ref(req); |
e8637c90 | 949 | scsi_req_dequeue(req); |
c6df7102 | 950 | req->bus->ops->complete(req, req->status); |
ad2d30f7 | 951 | scsi_req_unref(req); |
ed3a34a3 | 952 | } |
db07c0f8 | 953 | |
94d3f98a PB |
954 | void scsi_req_cancel(SCSIRequest *req) |
955 | { | |
12010e7b PB |
956 | if (req->ops->cancel_io) { |
957 | req->ops->cancel_io(req); | |
94d3f98a PB |
958 | } |
959 | scsi_req_ref(req); | |
960 | scsi_req_dequeue(req); | |
961 | if (req->bus->ops->cancel) { | |
962 | req->bus->ops->cancel(req); | |
963 | } | |
964 | scsi_req_unref(req); | |
965 | } | |
966 | ||
19d110ab PB |
967 | void scsi_req_abort(SCSIRequest *req, int status) |
968 | { | |
12010e7b PB |
969 | if (req->ops->cancel_io) { |
970 | req->ops->cancel_io(req); | |
19d110ab | 971 | } |
682a9b21 | 972 | scsi_req_complete(req, status); |
19d110ab PB |
973 | } |
974 | ||
c557e889 PB |
975 | void scsi_device_purge_requests(SCSIDevice *sdev) |
976 | { | |
977 | SCSIRequest *req; | |
978 | ||
979 | while (!QTAILQ_EMPTY(&sdev->requests)) { | |
980 | req = QTAILQ_FIRST(&sdev->requests); | |
94d3f98a | 981 | scsi_req_cancel(req); |
c557e889 PB |
982 | } |
983 | } | |
984 | ||
db07c0f8 GN |
985 | static char *scsibus_get_fw_dev_path(DeviceState *dev) |
986 | { | |
645a8ad6 | 987 | SCSIDevice *d = DO_UPCAST(SCSIDevice, qdev, dev); |
db07c0f8 GN |
988 | SCSIBus *bus = scsi_bus_from_device(d); |
989 | char path[100]; | |
990 | int i; | |
991 | ||
992 | for (i = 0; i < bus->ndev; i++) { | |
993 | if (bus->devs[i] == d) { | |
994 | break; | |
995 | } | |
996 | } | |
997 | ||
998 | assert(i != bus->ndev); | |
999 | ||
1000 | snprintf(path, sizeof(path), "%s@%x", qdev_fw_name(dev), i); | |
1001 | ||
1002 | return strdup(path); | |
1003 | } |