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Commit | Line | Data |
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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; | |
739df215 PB |
273 | case REQUEST_SENSE: |
274 | if (req->cmd.xfer < 4) { | |
275 | goto illegal_request; | |
276 | } | |
277 | r->len = scsi_device_get_sense(r->req.dev, r->buf, req->cmd.xfer, | |
278 | (req->cmd.buf[1] & 1) == 0); | |
279 | break; | |
fdaef069 PB |
280 | default: |
281 | scsi_req_build_sense(req, SENSE_CODE(LUN_NOT_SUPPORTED)); | |
282 | scsi_req_complete(req, CHECK_CONDITION); | |
283 | return 0; | |
284 | illegal_request: | |
285 | scsi_req_build_sense(req, SENSE_CODE(INVALID_FIELD)); | |
286 | scsi_req_complete(req, CHECK_CONDITION); | |
287 | return 0; | |
288 | } | |
289 | ||
290 | if (!r->len) { | |
291 | scsi_req_complete(req, GOOD); | |
292 | } | |
293 | return r->len; | |
294 | } | |
295 | ||
296 | static void scsi_target_read_data(SCSIRequest *req) | |
297 | { | |
298 | SCSITargetReq *r = DO_UPCAST(SCSITargetReq, req, req); | |
299 | uint32_t n; | |
300 | ||
301 | n = r->len; | |
302 | if (n > 0) { | |
303 | r->len = 0; | |
304 | scsi_req_data(&r->req, n); | |
305 | } else { | |
306 | scsi_req_complete(&r->req, GOOD); | |
307 | } | |
308 | } | |
309 | ||
310 | static uint8_t *scsi_target_get_buf(SCSIRequest *req) | |
311 | { | |
312 | SCSITargetReq *r = DO_UPCAST(SCSITargetReq, req, req); | |
313 | ||
314 | return r->buf; | |
315 | } | |
316 | ||
317 | struct SCSIReqOps reqops_target_command = { | |
318 | .size = sizeof(SCSITargetReq), | |
319 | .send_command = scsi_target_send_command, | |
320 | .read_data = scsi_target_read_data, | |
321 | .get_buf = scsi_target_get_buf, | |
322 | }; | |
323 | ||
324 | ||
8dbd4574 | 325 | SCSIRequest *scsi_req_alloc(SCSIReqOps *reqops, SCSIDevice *d, uint32_t tag, |
c5bf71a9 | 326 | uint32_t lun, void *hba_private) |
89b08ae1 GH |
327 | { |
328 | SCSIRequest *req; | |
329 | ||
8dbd4574 | 330 | req = qemu_mallocz(reqops->size); |
5c6c0e51 | 331 | req->refcount = 1; |
89b08ae1 GH |
332 | req->bus = scsi_bus_from_device(d); |
333 | req->dev = d; | |
334 | req->tag = tag; | |
335 | req->lun = lun; | |
c5bf71a9 | 336 | req->hba_private = hba_private; |
ed3a34a3 | 337 | req->status = -1; |
b45ef674 | 338 | req->sense_len = 0; |
8dbd4574 | 339 | req->ops = reqops; |
5138efec | 340 | trace_scsi_req_alloc(req->dev->id, req->lun, req->tag); |
89b08ae1 GH |
341 | return req; |
342 | } | |
343 | ||
c5bf71a9 | 344 | SCSIRequest *scsi_req_new(SCSIDevice *d, uint32_t tag, uint32_t lun, |
c39ce112 | 345 | uint8_t *buf, void *hba_private) |
43a2b339 | 346 | { |
c39ce112 | 347 | SCSIRequest *req; |
afa46c46 PB |
348 | SCSICommand cmd; |
349 | ||
350 | if (scsi_req_parse(&cmd, d, buf) != 0) { | |
351 | trace_scsi_req_parse_bad(d->id, lun, tag, buf[0]); | |
352 | req = scsi_req_alloc(&reqops_invalid_opcode, d, tag, lun, hba_private); | |
353 | } else { | |
354 | trace_scsi_req_parsed(d->id, lun, tag, buf[0], | |
355 | cmd.mode, cmd.xfer); | |
356 | if (req->cmd.lba != -1) { | |
357 | trace_scsi_req_parsed_lba(d->id, lun, tag, buf[0], | |
358 | cmd.lba); | |
359 | } | |
fdaef069 | 360 | |
739df215 PB |
361 | if (lun != d->lun || |
362 | buf[0] == REPORT_LUNS || | |
363 | buf[0] == REQUEST_SENSE) { | |
fdaef069 PB |
364 | req = scsi_req_alloc(&reqops_target_command, d, tag, lun, |
365 | hba_private); | |
366 | } else { | |
367 | req = d->info->alloc_req(d, tag, lun, hba_private); | |
368 | } | |
afa46c46 PB |
369 | } |
370 | ||
371 | req->cmd = cmd; | |
c39ce112 | 372 | return req; |
43a2b339 PB |
373 | } |
374 | ||
0c34459b PB |
375 | uint8_t *scsi_req_get_buf(SCSIRequest *req) |
376 | { | |
12010e7b | 377 | return req->ops->get_buf(req); |
0c34459b PB |
378 | } |
379 | ||
74382217 HR |
380 | int scsi_req_get_sense(SCSIRequest *req, uint8_t *buf, int len) |
381 | { | |
b45ef674 PB |
382 | assert(len >= 14); |
383 | if (!req->sense_len) { | |
74382217 HR |
384 | return 0; |
385 | } | |
b45ef674 PB |
386 | return scsi_build_sense(req->sense, req->sense_len, buf, len, true); |
387 | } | |
388 | ||
389 | int scsi_device_get_sense(SCSIDevice *dev, uint8_t *buf, int len, bool fixed) | |
390 | { | |
391 | return scsi_build_sense(dev->sense, dev->sense_len, buf, len, fixed); | |
392 | } | |
393 | ||
394 | void scsi_req_build_sense(SCSIRequest *req, SCSISense sense) | |
395 | { | |
396 | trace_scsi_req_build_sense(req->dev->id, req->lun, req->tag, | |
397 | sense.key, sense.asc, sense.ascq); | |
398 | memset(req->sense, 0, 18); | |
399 | req->sense[0] = 0xf0; | |
400 | req->sense[2] = sense.key; | |
401 | req->sense[12] = sense.asc; | |
402 | req->sense[13] = sense.ascq; | |
403 | req->sense_len = 18; | |
74382217 HR |
404 | } |
405 | ||
c39ce112 | 406 | int32_t scsi_req_enqueue(SCSIRequest *req) |
89b08ae1 | 407 | { |
fc4f0754 PB |
408 | int32_t rc; |
409 | ||
5c6c0e51 HR |
410 | assert(!req->enqueued); |
411 | scsi_req_ref(req); | |
412 | req->enqueued = true; | |
413 | QTAILQ_INSERT_TAIL(&req->dev->requests, req, next); | |
fc4f0754 PB |
414 | |
415 | scsi_req_ref(req); | |
c39ce112 | 416 | rc = req->ops->send_command(req, req->cmd.buf); |
fc4f0754 PB |
417 | scsi_req_unref(req); |
418 | return rc; | |
89b08ae1 GH |
419 | } |
420 | ||
a1f0cce2 | 421 | static void scsi_req_dequeue(SCSIRequest *req) |
e8637c90 | 422 | { |
5138efec | 423 | trace_scsi_req_dequeue(req->dev->id, req->lun, req->tag); |
e8637c90 JK |
424 | if (req->enqueued) { |
425 | QTAILQ_REMOVE(&req->dev->requests, req, next); | |
426 | req->enqueued = false; | |
ad2d30f7 | 427 | scsi_req_unref(req); |
e8637c90 JK |
428 | } |
429 | } | |
430 | ||
2599aece | 431 | static int scsi_req_length(SCSICommand *cmd, SCSIDevice *dev, uint8_t *buf) |
2ec749cb | 432 | { |
2599aece | 433 | switch (buf[0] >> 5) { |
2ec749cb | 434 | case 0: |
2599aece PB |
435 | cmd->xfer = buf[4]; |
436 | cmd->len = 6; | |
2ec749cb | 437 | /* length 0 means 256 blocks */ |
2599aece PB |
438 | if (cmd->xfer == 0) { |
439 | cmd->xfer = 256; | |
440 | } | |
2ec749cb GH |
441 | break; |
442 | case 1: | |
443 | case 2: | |
2599aece PB |
444 | cmd->xfer = buf[8] | (buf[7] << 8); |
445 | cmd->len = 10; | |
2ec749cb GH |
446 | break; |
447 | case 4: | |
2599aece PB |
448 | cmd->xfer = buf[13] | (buf[12] << 8) | (buf[11] << 16) | (buf[10] << 24); |
449 | cmd->len = 16; | |
2ec749cb GH |
450 | break; |
451 | case 5: | |
2599aece PB |
452 | cmd->xfer = buf[9] | (buf[8] << 8) | (buf[7] << 16) | (buf[6] << 24); |
453 | cmd->len = 12; | |
2ec749cb GH |
454 | break; |
455 | default: | |
456 | return -1; | |
457 | } | |
458 | ||
2599aece | 459 | switch (buf[0]) { |
2ec749cb | 460 | case TEST_UNIT_READY: |
5e30a07d | 461 | case REWIND: |
2ec749cb GH |
462 | case START_STOP: |
463 | case SEEK_6: | |
464 | case WRITE_FILEMARKS: | |
465 | case SPACE: | |
a5e3d9ef BK |
466 | case RESERVE: |
467 | case RELEASE: | |
2ec749cb GH |
468 | case ERASE: |
469 | case ALLOW_MEDIUM_REMOVAL: | |
5e30a07d | 470 | case VERIFY_10: |
2ec749cb GH |
471 | case SEEK_10: |
472 | case SYNCHRONIZE_CACHE: | |
473 | case LOCK_UNLOCK_CACHE: | |
474 | case LOAD_UNLOAD: | |
475 | case SET_CD_SPEED: | |
476 | case SET_LIMITS: | |
5e30a07d | 477 | case WRITE_LONG_10: |
2ec749cb GH |
478 | case MOVE_MEDIUM: |
479 | case UPDATE_BLOCK: | |
2599aece | 480 | cmd->xfer = 0; |
2ec749cb GH |
481 | break; |
482 | case MODE_SENSE: | |
483 | break; | |
5e30a07d | 484 | case WRITE_SAME_10: |
2599aece | 485 | cmd->xfer = 1; |
2ec749cb | 486 | break; |
5e30a07d | 487 | case READ_CAPACITY_10: |
2599aece | 488 | cmd->xfer = 8; |
2ec749cb GH |
489 | break; |
490 | case READ_BLOCK_LIMITS: | |
2599aece | 491 | cmd->xfer = 6; |
2ec749cb GH |
492 | break; |
493 | case READ_POSITION: | |
2599aece | 494 | cmd->xfer = 20; |
2ec749cb GH |
495 | break; |
496 | case SEND_VOLUME_TAG: | |
2599aece | 497 | cmd->xfer *= 40; |
2ec749cb GH |
498 | break; |
499 | case MEDIUM_SCAN: | |
2599aece | 500 | cmd->xfer *= 8; |
2ec749cb GH |
501 | break; |
502 | case WRITE_10: | |
5e30a07d | 503 | case WRITE_VERIFY_10: |
2ec749cb GH |
504 | case WRITE_6: |
505 | case WRITE_12: | |
506 | case WRITE_VERIFY_12: | |
bd536cf3 GH |
507 | case WRITE_16: |
508 | case WRITE_VERIFY_16: | |
2599aece | 509 | cmd->xfer *= dev->blocksize; |
2ec749cb GH |
510 | break; |
511 | case READ_10: | |
512 | case READ_6: | |
513 | case READ_REVERSE: | |
514 | case RECOVER_BUFFERED_DATA: | |
515 | case READ_12: | |
bd536cf3 | 516 | case READ_16: |
2599aece | 517 | cmd->xfer *= dev->blocksize; |
2ec749cb GH |
518 | break; |
519 | case INQUIRY: | |
2599aece | 520 | cmd->xfer = buf[4] | (buf[3] << 8); |
2ec749cb | 521 | break; |
c7126d5b NB |
522 | case MAINTENANCE_OUT: |
523 | case MAINTENANCE_IN: | |
2599aece | 524 | if (dev->type == TYPE_ROM) { |
c7126d5b | 525 | /* GPCMD_REPORT_KEY and GPCMD_SEND_KEY from multi media commands */ |
2599aece | 526 | cmd->xfer = buf[9] | (buf[8] << 8); |
c7126d5b NB |
527 | } |
528 | break; | |
2ec749cb GH |
529 | } |
530 | return 0; | |
531 | } | |
532 | ||
2599aece | 533 | static int scsi_req_stream_length(SCSICommand *cmd, SCSIDevice *dev, uint8_t *buf) |
2ec749cb | 534 | { |
2599aece | 535 | switch (buf[0]) { |
2ec749cb GH |
536 | /* stream commands */ |
537 | case READ_6: | |
538 | case READ_REVERSE: | |
539 | case RECOVER_BUFFERED_DATA: | |
540 | case WRITE_6: | |
2599aece PB |
541 | cmd->len = 6; |
542 | cmd->xfer = buf[4] | (buf[3] << 8) | (buf[2] << 16); | |
543 | if (buf[1] & 0x01) { /* fixed */ | |
544 | cmd->xfer *= dev->blocksize; | |
545 | } | |
2ec749cb GH |
546 | break; |
547 | case REWIND: | |
548 | case START_STOP: | |
2599aece PB |
549 | cmd->len = 6; |
550 | cmd->xfer = 0; | |
2ec749cb GH |
551 | break; |
552 | /* generic commands */ | |
553 | default: | |
2599aece | 554 | return scsi_req_length(cmd, dev, buf); |
2ec749cb GH |
555 | } |
556 | return 0; | |
557 | } | |
558 | ||
2599aece | 559 | static void scsi_cmd_xfer_mode(SCSICommand *cmd) |
97a06435 | 560 | { |
2599aece | 561 | switch (cmd->buf[0]) { |
97a06435 GH |
562 | case WRITE_6: |
563 | case WRITE_10: | |
5e30a07d | 564 | case WRITE_VERIFY_10: |
97a06435 GH |
565 | case WRITE_12: |
566 | case WRITE_VERIFY_12: | |
bd536cf3 GH |
567 | case WRITE_16: |
568 | case WRITE_VERIFY_16: | |
97a06435 GH |
569 | case COPY: |
570 | case COPY_VERIFY: | |
571 | case COMPARE: | |
572 | case CHANGE_DEFINITION: | |
573 | case LOG_SELECT: | |
574 | case MODE_SELECT: | |
575 | case MODE_SELECT_10: | |
576 | case SEND_DIAGNOSTIC: | |
577 | case WRITE_BUFFER: | |
578 | case FORMAT_UNIT: | |
579 | case REASSIGN_BLOCKS: | |
97a06435 GH |
580 | case SEARCH_EQUAL: |
581 | case SEARCH_HIGH: | |
582 | case SEARCH_LOW: | |
583 | case UPDATE_BLOCK: | |
5e30a07d HR |
584 | case WRITE_LONG_10: |
585 | case WRITE_SAME_10: | |
97a06435 GH |
586 | case SEARCH_HIGH_12: |
587 | case SEARCH_EQUAL_12: | |
588 | case SEARCH_LOW_12: | |
97a06435 GH |
589 | case MEDIUM_SCAN: |
590 | case SEND_VOLUME_TAG: | |
01bedeba | 591 | case PERSISTENT_RESERVE_OUT: |
c7126d5b | 592 | case MAINTENANCE_OUT: |
2599aece | 593 | cmd->mode = SCSI_XFER_TO_DEV; |
97a06435 GH |
594 | break; |
595 | default: | |
2599aece PB |
596 | if (cmd->xfer) |
597 | cmd->mode = SCSI_XFER_FROM_DEV; | |
97a06435 | 598 | else { |
2599aece | 599 | cmd->mode = SCSI_XFER_NONE; |
97a06435 GH |
600 | } |
601 | break; | |
602 | } | |
603 | } | |
604 | ||
2599aece | 605 | static uint64_t scsi_cmd_lba(SCSICommand *cmd) |
2ec749cb | 606 | { |
2599aece | 607 | uint8_t *buf = cmd->buf; |
2ec749cb GH |
608 | uint64_t lba; |
609 | ||
610 | switch (buf[0] >> 5) { | |
611 | case 0: | |
612 | lba = (uint64_t) buf[3] | ((uint64_t) buf[2] << 8) | | |
613 | (((uint64_t) buf[1] & 0x1f) << 16); | |
614 | break; | |
615 | case 1: | |
616 | case 2: | |
617 | lba = (uint64_t) buf[5] | ((uint64_t) buf[4] << 8) | | |
618 | ((uint64_t) buf[3] << 16) | ((uint64_t) buf[2] << 24); | |
619 | break; | |
620 | case 4: | |
621 | lba = (uint64_t) buf[9] | ((uint64_t) buf[8] << 8) | | |
622 | ((uint64_t) buf[7] << 16) | ((uint64_t) buf[6] << 24) | | |
623 | ((uint64_t) buf[5] << 32) | ((uint64_t) buf[4] << 40) | | |
624 | ((uint64_t) buf[3] << 48) | ((uint64_t) buf[2] << 56); | |
625 | break; | |
626 | case 5: | |
627 | lba = (uint64_t) buf[5] | ((uint64_t) buf[4] << 8) | | |
628 | ((uint64_t) buf[3] << 16) | ((uint64_t) buf[2] << 24); | |
629 | break; | |
630 | default: | |
631 | lba = -1; | |
632 | ||
633 | } | |
634 | return lba; | |
635 | } | |
636 | ||
afa46c46 | 637 | int scsi_req_parse(SCSICommand *cmd, SCSIDevice *dev, uint8_t *buf) |
2ec749cb GH |
638 | { |
639 | int rc; | |
640 | ||
afa46c46 PB |
641 | if (dev->type == TYPE_TAPE) { |
642 | rc = scsi_req_stream_length(cmd, dev, buf); | |
2ec749cb | 643 | } else { |
afa46c46 | 644 | rc = scsi_req_length(cmd, dev, buf); |
2ec749cb GH |
645 | } |
646 | if (rc != 0) | |
647 | return rc; | |
648 | ||
afa46c46 PB |
649 | memcpy(cmd->buf, buf, cmd->len); |
650 | scsi_cmd_xfer_mode(cmd); | |
651 | cmd->lba = scsi_cmd_lba(cmd); | |
2ec749cb GH |
652 | return 0; |
653 | } | |
ed3a34a3 | 654 | |
a1f0cce2 HR |
655 | /* |
656 | * Predefined sense codes | |
657 | */ | |
658 | ||
659 | /* No sense data available */ | |
660 | const struct SCSISense sense_code_NO_SENSE = { | |
661 | .key = NO_SENSE , .asc = 0x00 , .ascq = 0x00 | |
662 | }; | |
663 | ||
664 | /* LUN not ready, Manual intervention required */ | |
665 | const struct SCSISense sense_code_LUN_NOT_READY = { | |
666 | .key = NOT_READY, .asc = 0x04, .ascq = 0x03 | |
667 | }; | |
668 | ||
669 | /* LUN not ready, Medium not present */ | |
670 | const struct SCSISense sense_code_NO_MEDIUM = { | |
671 | .key = NOT_READY, .asc = 0x3a, .ascq = 0x00 | |
672 | }; | |
673 | ||
674 | /* Hardware error, internal target failure */ | |
675 | const struct SCSISense sense_code_TARGET_FAILURE = { | |
676 | .key = HARDWARE_ERROR, .asc = 0x44, .ascq = 0x00 | |
677 | }; | |
678 | ||
679 | /* Illegal request, invalid command operation code */ | |
680 | const struct SCSISense sense_code_INVALID_OPCODE = { | |
681 | .key = ILLEGAL_REQUEST, .asc = 0x20, .ascq = 0x00 | |
682 | }; | |
683 | ||
684 | /* Illegal request, LBA out of range */ | |
685 | const struct SCSISense sense_code_LBA_OUT_OF_RANGE = { | |
686 | .key = ILLEGAL_REQUEST, .asc = 0x21, .ascq = 0x00 | |
687 | }; | |
688 | ||
689 | /* Illegal request, Invalid field in CDB */ | |
690 | const struct SCSISense sense_code_INVALID_FIELD = { | |
691 | .key = ILLEGAL_REQUEST, .asc = 0x24, .ascq = 0x00 | |
692 | }; | |
693 | ||
694 | /* Illegal request, LUN not supported */ | |
695 | const struct SCSISense sense_code_LUN_NOT_SUPPORTED = { | |
696 | .key = ILLEGAL_REQUEST, .asc = 0x25, .ascq = 0x00 | |
697 | }; | |
698 | ||
699 | /* Command aborted, I/O process terminated */ | |
700 | const struct SCSISense sense_code_IO_ERROR = { | |
701 | .key = ABORTED_COMMAND, .asc = 0x00, .ascq = 0x06 | |
702 | }; | |
703 | ||
704 | /* Command aborted, I_T Nexus loss occurred */ | |
705 | const struct SCSISense sense_code_I_T_NEXUS_LOSS = { | |
706 | .key = ABORTED_COMMAND, .asc = 0x29, .ascq = 0x07 | |
707 | }; | |
708 | ||
709 | /* Command aborted, Logical Unit failure */ | |
710 | const struct SCSISense sense_code_LUN_FAILURE = { | |
711 | .key = ABORTED_COMMAND, .asc = 0x3e, .ascq = 0x01 | |
712 | }; | |
713 | ||
714 | /* | |
715 | * scsi_build_sense | |
716 | * | |
b45ef674 | 717 | * Convert between fixed and descriptor sense buffers |
a1f0cce2 | 718 | */ |
b45ef674 PB |
719 | int scsi_build_sense(uint8_t *in_buf, int in_len, |
720 | uint8_t *buf, int len, bool fixed) | |
a1f0cce2 | 721 | { |
b45ef674 PB |
722 | bool fixed_in; |
723 | SCSISense sense; | |
a1f0cce2 HR |
724 | if (!fixed && len < 8) { |
725 | return 0; | |
726 | } | |
727 | ||
b45ef674 PB |
728 | if (in_len == 0) { |
729 | sense.key = NO_SENSE; | |
730 | sense.asc = 0; | |
731 | sense.ascq = 0; | |
732 | } else { | |
733 | fixed_in = (in_buf[0] & 2) == 0; | |
734 | ||
735 | if (fixed == fixed_in) { | |
736 | memcpy(buf, in_buf, MIN(len, in_len)); | |
737 | return MIN(len, in_len); | |
738 | } | |
739 | ||
740 | if (fixed_in) { | |
741 | sense.key = in_buf[2]; | |
742 | sense.asc = in_buf[12]; | |
743 | sense.ascq = in_buf[13]; | |
744 | } else { | |
745 | sense.key = in_buf[1]; | |
746 | sense.asc = in_buf[2]; | |
747 | sense.ascq = in_buf[3]; | |
748 | } | |
749 | } | |
750 | ||
a1f0cce2 HR |
751 | memset(buf, 0, len); |
752 | if (fixed) { | |
753 | /* Return fixed format sense buffer */ | |
754 | buf[0] = 0xf0; | |
755 | buf[2] = sense.key; | |
756 | buf[7] = 7; | |
757 | buf[12] = sense.asc; | |
758 | buf[13] = sense.ascq; | |
759 | return MIN(len, 18); | |
760 | } else { | |
761 | /* Return descriptor format sense buffer */ | |
762 | buf[0] = 0x72; | |
763 | buf[1] = sense.key; | |
764 | buf[2] = sense.asc; | |
765 | buf[3] = sense.ascq; | |
766 | return 8; | |
767 | } | |
768 | } | |
769 | ||
ec766865 GH |
770 | static const char *scsi_command_name(uint8_t cmd) |
771 | { | |
772 | static const char *names[] = { | |
773 | [ TEST_UNIT_READY ] = "TEST_UNIT_READY", | |
5e30a07d | 774 | [ REWIND ] = "REWIND", |
ec766865 GH |
775 | [ REQUEST_SENSE ] = "REQUEST_SENSE", |
776 | [ FORMAT_UNIT ] = "FORMAT_UNIT", | |
777 | [ READ_BLOCK_LIMITS ] = "READ_BLOCK_LIMITS", | |
778 | [ REASSIGN_BLOCKS ] = "REASSIGN_BLOCKS", | |
779 | [ READ_6 ] = "READ_6", | |
780 | [ WRITE_6 ] = "WRITE_6", | |
781 | [ SEEK_6 ] = "SEEK_6", | |
782 | [ READ_REVERSE ] = "READ_REVERSE", | |
783 | [ WRITE_FILEMARKS ] = "WRITE_FILEMARKS", | |
784 | [ SPACE ] = "SPACE", | |
785 | [ INQUIRY ] = "INQUIRY", | |
786 | [ RECOVER_BUFFERED_DATA ] = "RECOVER_BUFFERED_DATA", | |
c7126d5b NB |
787 | [ MAINTENANCE_IN ] = "MAINTENANCE_IN", |
788 | [ MAINTENANCE_OUT ] = "MAINTENANCE_OUT", | |
ec766865 GH |
789 | [ MODE_SELECT ] = "MODE_SELECT", |
790 | [ RESERVE ] = "RESERVE", | |
791 | [ RELEASE ] = "RELEASE", | |
792 | [ COPY ] = "COPY", | |
793 | [ ERASE ] = "ERASE", | |
794 | [ MODE_SENSE ] = "MODE_SENSE", | |
795 | [ START_STOP ] = "START_STOP", | |
796 | [ RECEIVE_DIAGNOSTIC ] = "RECEIVE_DIAGNOSTIC", | |
797 | [ SEND_DIAGNOSTIC ] = "SEND_DIAGNOSTIC", | |
798 | [ ALLOW_MEDIUM_REMOVAL ] = "ALLOW_MEDIUM_REMOVAL", | |
5e30a07d | 799 | [ READ_CAPACITY_10 ] = "READ_CAPACITY_10", |
ec766865 GH |
800 | [ READ_10 ] = "READ_10", |
801 | [ WRITE_10 ] = "WRITE_10", | |
802 | [ SEEK_10 ] = "SEEK_10", | |
5e30a07d HR |
803 | [ WRITE_VERIFY_10 ] = "WRITE_VERIFY_10", |
804 | [ VERIFY_10 ] = "VERIFY_10", | |
ec766865 GH |
805 | [ SEARCH_HIGH ] = "SEARCH_HIGH", |
806 | [ SEARCH_EQUAL ] = "SEARCH_EQUAL", | |
807 | [ SEARCH_LOW ] = "SEARCH_LOW", | |
808 | [ SET_LIMITS ] = "SET_LIMITS", | |
809 | [ PRE_FETCH ] = "PRE_FETCH", | |
545557d4 | 810 | /* READ_POSITION and PRE_FETCH use the same operation code */ |
ec766865 GH |
811 | [ SYNCHRONIZE_CACHE ] = "SYNCHRONIZE_CACHE", |
812 | [ LOCK_UNLOCK_CACHE ] = "LOCK_UNLOCK_CACHE", | |
813 | [ READ_DEFECT_DATA ] = "READ_DEFECT_DATA", | |
814 | [ MEDIUM_SCAN ] = "MEDIUM_SCAN", | |
815 | [ COMPARE ] = "COMPARE", | |
816 | [ COPY_VERIFY ] = "COPY_VERIFY", | |
817 | [ WRITE_BUFFER ] = "WRITE_BUFFER", | |
818 | [ READ_BUFFER ] = "READ_BUFFER", | |
819 | [ UPDATE_BLOCK ] = "UPDATE_BLOCK", | |
5e30a07d HR |
820 | [ READ_LONG_10 ] = "READ_LONG_10", |
821 | [ WRITE_LONG_10 ] = "WRITE_LONG_10", | |
ec766865 | 822 | [ CHANGE_DEFINITION ] = "CHANGE_DEFINITION", |
5e30a07d HR |
823 | [ WRITE_SAME_10 ] = "WRITE_SAME_10", |
824 | [ UNMAP ] = "UNMAP", | |
ec766865 | 825 | [ READ_TOC ] = "READ_TOC", |
5e30a07d HR |
826 | [ REPORT_DENSITY_SUPPORT ] = "REPORT_DENSITY_SUPPORT", |
827 | [ GET_CONFIGURATION ] = "GET_CONFIGURATION", | |
ec766865 GH |
828 | [ LOG_SELECT ] = "LOG_SELECT", |
829 | [ LOG_SENSE ] = "LOG_SENSE", | |
830 | [ MODE_SELECT_10 ] = "MODE_SELECT_10", | |
831 | [ RESERVE_10 ] = "RESERVE_10", | |
832 | [ RELEASE_10 ] = "RELEASE_10", | |
833 | [ MODE_SENSE_10 ] = "MODE_SENSE_10", | |
834 | [ PERSISTENT_RESERVE_IN ] = "PERSISTENT_RESERVE_IN", | |
835 | [ PERSISTENT_RESERVE_OUT ] = "PERSISTENT_RESERVE_OUT", | |
5e30a07d HR |
836 | [ WRITE_FILEMARKS_16 ] = "WRITE_FILEMARKS_16", |
837 | [ EXTENDED_COPY ] = "EXTENDED_COPY", | |
838 | [ ATA_PASSTHROUGH ] = "ATA_PASSTHROUGH", | |
839 | [ ACCESS_CONTROL_IN ] = "ACCESS_CONTROL_IN", | |
840 | [ ACCESS_CONTROL_OUT ] = "ACCESS_CONTROL_OUT", | |
841 | [ READ_16 ] = "READ_16", | |
842 | [ COMPARE_AND_WRITE ] = "COMPARE_AND_WRITE", | |
843 | [ WRITE_16 ] = "WRITE_16", | |
844 | [ WRITE_VERIFY_16 ] = "WRITE_VERIFY_16", | |
845 | [ VERIFY_16 ] = "VERIFY_16", | |
846 | [ SYNCHRONIZE_CACHE_16 ] = "SYNCHRONIZE_CACHE_16", | |
847 | [ LOCATE_16 ] = "LOCATE_16", | |
848 | [ WRITE_SAME_16 ] = "WRITE_SAME_16", | |
849 | [ ERASE_16 ] = "ERASE_16", | |
850 | [ SERVICE_ACTION_IN ] = "SERVICE_ACTION_IN", | |
851 | [ WRITE_LONG_16 ] = "WRITE_LONG_16", | |
852 | [ REPORT_LUNS ] = "REPORT_LUNS", | |
853 | [ BLANK ] = "BLANK", | |
854 | [ MAINTENANCE_IN ] = "MAINTENANCE_IN", | |
855 | [ MAINTENANCE_OUT ] = "MAINTENANCE_OUT", | |
ec766865 | 856 | [ MOVE_MEDIUM ] = "MOVE_MEDIUM", |
5e30a07d | 857 | [ LOAD_UNLOAD ] = "LOAD_UNLOAD", |
ec766865 GH |
858 | [ READ_12 ] = "READ_12", |
859 | [ WRITE_12 ] = "WRITE_12", | |
860 | [ WRITE_VERIFY_12 ] = "WRITE_VERIFY_12", | |
5e30a07d | 861 | [ VERIFY_12 ] = "VERIFY_12", |
ec766865 GH |
862 | [ SEARCH_HIGH_12 ] = "SEARCH_HIGH_12", |
863 | [ SEARCH_EQUAL_12 ] = "SEARCH_EQUAL_12", | |
864 | [ SEARCH_LOW_12 ] = "SEARCH_LOW_12", | |
865 | [ READ_ELEMENT_STATUS ] = "READ_ELEMENT_STATUS", | |
866 | [ SEND_VOLUME_TAG ] = "SEND_VOLUME_TAG", | |
5e30a07d | 867 | [ READ_DEFECT_DATA_12 ] = "READ_DEFECT_DATA_12", |
ec766865 | 868 | [ SET_CD_SPEED ] = "SET_CD_SPEED", |
ec766865 GH |
869 | }; |
870 | ||
871 | if (cmd >= ARRAY_SIZE(names) || names[cmd] == NULL) | |
872 | return "*UNKNOWN*"; | |
873 | return names[cmd]; | |
874 | } | |
875 | ||
ad2d30f7 PB |
876 | SCSIRequest *scsi_req_ref(SCSIRequest *req) |
877 | { | |
878 | req->refcount++; | |
879 | return req; | |
880 | } | |
881 | ||
882 | void scsi_req_unref(SCSIRequest *req) | |
883 | { | |
884 | if (--req->refcount == 0) { | |
12010e7b PB |
885 | if (req->ops->free_req) { |
886 | req->ops->free_req(req); | |
ad2d30f7 PB |
887 | } |
888 | qemu_free(req); | |
889 | } | |
890 | } | |
891 | ||
ad3376cc PB |
892 | /* Tell the device that we finished processing this chunk of I/O. It |
893 | will start the next chunk or complete the command. */ | |
894 | void scsi_req_continue(SCSIRequest *req) | |
895 | { | |
896 | trace_scsi_req_continue(req->dev->id, req->lun, req->tag); | |
897 | if (req->cmd.mode == SCSI_XFER_TO_DEV) { | |
12010e7b | 898 | req->ops->write_data(req); |
ad3376cc | 899 | } else { |
12010e7b | 900 | req->ops->read_data(req); |
ad3376cc PB |
901 | } |
902 | } | |
903 | ||
ab9adc88 PB |
904 | /* Called by the devices when data is ready for the HBA. The HBA should |
905 | start a DMA operation to read or fill the device's data buffer. | |
ad3376cc | 906 | Once it completes, calling scsi_req_continue will restart I/O. */ |
ab9adc88 PB |
907 | void scsi_req_data(SCSIRequest *req, int len) |
908 | { | |
909 | trace_scsi_req_data(req->dev->id, req->lun, req->tag, len); | |
c6df7102 | 910 | req->bus->ops->transfer_data(req, len); |
ab9adc88 PB |
911 | } |
912 | ||
ec766865 GH |
913 | void scsi_req_print(SCSIRequest *req) |
914 | { | |
915 | FILE *fp = stderr; | |
916 | int i; | |
917 | ||
918 | fprintf(fp, "[%s id=%d] %s", | |
919 | req->dev->qdev.parent_bus->name, | |
920 | req->dev->id, | |
921 | scsi_command_name(req->cmd.buf[0])); | |
922 | for (i = 1; i < req->cmd.len; i++) { | |
923 | fprintf(fp, " 0x%02x", req->cmd.buf[i]); | |
924 | } | |
925 | switch (req->cmd.mode) { | |
926 | case SCSI_XFER_NONE: | |
927 | fprintf(fp, " - none\n"); | |
928 | break; | |
929 | case SCSI_XFER_FROM_DEV: | |
930 | fprintf(fp, " - from-dev len=%zd\n", req->cmd.xfer); | |
931 | break; | |
932 | case SCSI_XFER_TO_DEV: | |
933 | fprintf(fp, " - to-dev len=%zd\n", req->cmd.xfer); | |
934 | break; | |
935 | default: | |
936 | fprintf(fp, " - Oops\n"); | |
937 | break; | |
938 | } | |
939 | } | |
940 | ||
682a9b21 | 941 | void scsi_req_complete(SCSIRequest *req, int status) |
ed3a34a3 | 942 | { |
682a9b21 PB |
943 | assert(req->status == -1); |
944 | req->status = status; | |
b45ef674 PB |
945 | |
946 | assert(req->sense_len < sizeof(req->sense)); | |
947 | if (status == GOOD) { | |
948 | req->sense_len = 0; | |
949 | } | |
950 | ||
951 | if (req->sense_len) { | |
952 | memcpy(req->dev->sense, req->sense, req->sense_len); | |
953 | } | |
954 | req->dev->sense_len = req->sense_len; | |
955 | ||
ad2d30f7 | 956 | scsi_req_ref(req); |
e8637c90 | 957 | scsi_req_dequeue(req); |
c6df7102 | 958 | req->bus->ops->complete(req, req->status); |
ad2d30f7 | 959 | scsi_req_unref(req); |
ed3a34a3 | 960 | } |
db07c0f8 | 961 | |
94d3f98a PB |
962 | void scsi_req_cancel(SCSIRequest *req) |
963 | { | |
12010e7b PB |
964 | if (req->ops->cancel_io) { |
965 | req->ops->cancel_io(req); | |
94d3f98a PB |
966 | } |
967 | scsi_req_ref(req); | |
968 | scsi_req_dequeue(req); | |
969 | if (req->bus->ops->cancel) { | |
970 | req->bus->ops->cancel(req); | |
971 | } | |
972 | scsi_req_unref(req); | |
973 | } | |
974 | ||
19d110ab PB |
975 | void scsi_req_abort(SCSIRequest *req, int status) |
976 | { | |
12010e7b PB |
977 | if (req->ops->cancel_io) { |
978 | req->ops->cancel_io(req); | |
19d110ab | 979 | } |
682a9b21 | 980 | scsi_req_complete(req, status); |
19d110ab PB |
981 | } |
982 | ||
c557e889 PB |
983 | void scsi_device_purge_requests(SCSIDevice *sdev) |
984 | { | |
985 | SCSIRequest *req; | |
986 | ||
987 | while (!QTAILQ_EMPTY(&sdev->requests)) { | |
988 | req = QTAILQ_FIRST(&sdev->requests); | |
94d3f98a | 989 | scsi_req_cancel(req); |
c557e889 PB |
990 | } |
991 | } | |
992 | ||
db07c0f8 GN |
993 | static char *scsibus_get_fw_dev_path(DeviceState *dev) |
994 | { | |
645a8ad6 | 995 | SCSIDevice *d = DO_UPCAST(SCSIDevice, qdev, dev); |
db07c0f8 GN |
996 | SCSIBus *bus = scsi_bus_from_device(d); |
997 | char path[100]; | |
998 | int i; | |
999 | ||
1000 | for (i = 0; i < bus->ndev; i++) { | |
1001 | if (bus->devs[i] == d) { | |
1002 | break; | |
1003 | } | |
1004 | } | |
1005 | ||
1006 | assert(i != bus->ndev); | |
1007 | ||
1008 | snprintf(path, sizeof(path), "%s@%x", qdev_fw_name(dev), i); | |
1009 | ||
1010 | return strdup(path); | |
1011 | } |