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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. */ | |
afd4030c | 27 | void scsi_bus_new(SCSIBus *bus, DeviceState *host, const SCSIBusInfo *info) |
d52affa7 | 28 | { |
ca9c39fa | 29 | qbus_create_inplace(&bus->qbus, &scsi_bus_info, host, NULL); |
d52affa7 | 30 | bus->busnr = next_scsi_bus++; |
afd4030c | 31 | bus->info = info; |
cb23117b | 32 | bus->qbus.allow_hotplug = 1; |
d52affa7 GH |
33 | } |
34 | ||
35 | static int scsi_qdev_init(DeviceState *qdev, DeviceInfo *base) | |
36 | { | |
37 | SCSIDevice *dev = DO_UPCAST(SCSIDevice, qdev, qdev); | |
38 | SCSIDeviceInfo *info = DO_UPCAST(SCSIDeviceInfo, qdev, base); | |
39 | SCSIBus *bus = DO_UPCAST(SCSIBus, qbus, dev->qdev.parent_bus); | |
01985dcf | 40 | int rc = -1; |
d52affa7 GH |
41 | |
42 | if (dev->id == -1) { | |
afd4030c | 43 | for (dev->id = 0; dev->id < bus->info->ndev; dev->id++) { |
d52affa7 GH |
44 | if (bus->devs[dev->id] == NULL) |
45 | break; | |
46 | } | |
47 | } | |
afd4030c | 48 | if (dev->id >= bus->info->ndev) { |
1ecda02b | 49 | error_report("bad scsi device id: %d", dev->id); |
d52affa7 GH |
50 | goto err; |
51 | } | |
52 | ||
53 | if (bus->devs[dev->id]) { | |
01985dcf | 54 | qdev_free(&bus->devs[dev->id]->qdev); |
d52affa7 GH |
55 | } |
56 | bus->devs[dev->id] = dev; | |
57 | ||
58 | dev->info = info; | |
9af99d98 | 59 | QTAILQ_INIT(&dev->requests); |
01985dcf GH |
60 | rc = dev->info->init(dev); |
61 | if (rc != 0) { | |
62 | bus->devs[dev->id] = NULL; | |
63 | } | |
d52affa7 GH |
64 | |
65 | err: | |
01985dcf GH |
66 | return rc; |
67 | } | |
68 | ||
69 | static int scsi_qdev_exit(DeviceState *qdev) | |
70 | { | |
71 | SCSIDevice *dev = DO_UPCAST(SCSIDevice, qdev, qdev); | |
72 | SCSIBus *bus = DO_UPCAST(SCSIBus, qbus, dev->qdev.parent_bus); | |
73 | ||
74 | assert(bus->devs[dev->id] != NULL); | |
75 | if (bus->devs[dev->id]->info->destroy) { | |
76 | bus->devs[dev->id]->info->destroy(bus->devs[dev->id]); | |
77 | } | |
78 | bus->devs[dev->id] = NULL; | |
79 | return 0; | |
d52affa7 GH |
80 | } |
81 | ||
82 | void scsi_qdev_register(SCSIDeviceInfo *info) | |
83 | { | |
84 | info->qdev.bus_info = &scsi_bus_info; | |
85 | info->qdev.init = scsi_qdev_init; | |
cb23117b | 86 | info->qdev.unplug = qdev_simple_unplug_cb; |
01985dcf | 87 | info->qdev.exit = scsi_qdev_exit; |
d52affa7 GH |
88 | qdev_register(&info->qdev); |
89 | } | |
90 | ||
91 | /* handle legacy '-drive if=scsi,...' cmd line args */ | |
2d1fd261 SH |
92 | SCSIDevice *scsi_bus_legacy_add_drive(SCSIBus *bus, BlockDriverState *bdrv, |
93 | int unit, bool removable) | |
d52affa7 GH |
94 | { |
95 | const char *driver; | |
96 | DeviceState *dev; | |
97 | ||
f8b6cc00 | 98 | driver = bdrv_is_sg(bdrv) ? "scsi-generic" : "scsi-disk"; |
d52affa7 GH |
99 | dev = qdev_create(&bus->qbus, driver); |
100 | qdev_prop_set_uint32(dev, "scsi-id", unit); | |
2d1fd261 SH |
101 | if (qdev_prop_exists(dev, "removable")) { |
102 | qdev_prop_set_bit(dev, "removable", removable); | |
103 | } | |
18846dee MA |
104 | if (qdev_prop_set_drive(dev, "drive", bdrv) < 0) { |
105 | qdev_free(dev); | |
106 | return NULL; | |
107 | } | |
33e66b86 MA |
108 | if (qdev_init(dev) < 0) |
109 | return NULL; | |
d52affa7 GH |
110 | return DO_UPCAST(SCSIDevice, qdev, dev); |
111 | } | |
112 | ||
fa66b909 | 113 | int scsi_bus_legacy_handle_cmdline(SCSIBus *bus) |
d52affa7 | 114 | { |
42e766a2 | 115 | Location loc; |
d52affa7 | 116 | DriveInfo *dinfo; |
fa66b909 | 117 | int res = 0, unit; |
d52affa7 | 118 | |
42e766a2 | 119 | loc_push_none(&loc); |
afd4030c | 120 | for (unit = 0; unit < bus->info->ndev; unit++) { |
d52affa7 GH |
121 | dinfo = drive_get(IF_SCSI, bus->busnr, unit); |
122 | if (dinfo == NULL) { | |
123 | continue; | |
124 | } | |
42e766a2 | 125 | qemu_opts_loc_restore(dinfo->opts); |
2d1fd261 | 126 | if (!scsi_bus_legacy_add_drive(bus, dinfo->bdrv, unit, false)) { |
fa66b909 MA |
127 | res = -1; |
128 | break; | |
129 | } | |
d52affa7 | 130 | } |
42e766a2 | 131 | loc_pop(&loc); |
fa66b909 | 132 | return res; |
d52affa7 | 133 | } |
89b08ae1 | 134 | |
afa46c46 PB |
135 | /* SCSIReqOps implementation for invalid commands. */ |
136 | ||
137 | static int32_t scsi_invalid_command(SCSIRequest *req, uint8_t *buf) | |
138 | { | |
139 | scsi_req_build_sense(req, SENSE_CODE(INVALID_OPCODE)); | |
140 | scsi_req_complete(req, CHECK_CONDITION); | |
141 | return 0; | |
142 | } | |
143 | ||
144 | struct SCSIReqOps reqops_invalid_opcode = { | |
145 | .size = sizeof(SCSIRequest), | |
146 | .send_command = scsi_invalid_command | |
147 | }; | |
148 | ||
6dc06f08 PB |
149 | /* SCSIReqOps implementation for unit attention conditions. */ |
150 | ||
151 | static int32_t scsi_unit_attention(SCSIRequest *req, uint8_t *buf) | |
152 | { | |
153 | if (req->dev && req->dev->unit_attention.key == UNIT_ATTENTION) { | |
154 | scsi_req_build_sense(req, req->dev->unit_attention); | |
155 | } else if (req->bus->unit_attention.key == UNIT_ATTENTION) { | |
156 | scsi_req_build_sense(req, req->bus->unit_attention); | |
157 | } | |
158 | scsi_req_complete(req, CHECK_CONDITION); | |
159 | return 0; | |
160 | } | |
161 | ||
162 | struct SCSIReqOps reqops_unit_attention = { | |
163 | .size = sizeof(SCSIRequest), | |
164 | .send_command = scsi_unit_attention | |
165 | }; | |
166 | ||
fdaef069 PB |
167 | /* SCSIReqOps implementation for REPORT LUNS and for commands sent to |
168 | an invalid LUN. */ | |
169 | ||
170 | typedef struct SCSITargetReq SCSITargetReq; | |
171 | ||
172 | struct SCSITargetReq { | |
173 | SCSIRequest req; | |
174 | int len; | |
175 | uint8_t buf[64]; | |
176 | }; | |
177 | ||
178 | static void store_lun(uint8_t *outbuf, int lun) | |
179 | { | |
180 | if (lun < 256) { | |
181 | outbuf[1] = lun; | |
182 | return; | |
183 | } | |
184 | outbuf[1] = (lun & 255); | |
185 | outbuf[0] = (lun >> 8) | 0x40; | |
186 | } | |
187 | ||
188 | static bool scsi_target_emulate_report_luns(SCSITargetReq *r) | |
189 | { | |
190 | int len; | |
191 | if (r->req.cmd.xfer < 16) { | |
192 | return false; | |
193 | } | |
194 | if (r->req.cmd.buf[2] > 2) { | |
195 | return false; | |
196 | } | |
197 | len = MIN(sizeof r->buf, r->req.cmd.xfer); | |
198 | memset(r->buf, 0, len); | |
199 | if (r->req.dev->lun != 0) { | |
200 | r->buf[3] = 16; | |
201 | r->len = 24; | |
202 | store_lun(&r->buf[16], r->req.dev->lun); | |
203 | } else { | |
204 | r->buf[3] = 8; | |
205 | r->len = 16; | |
206 | } | |
207 | return true; | |
208 | } | |
209 | ||
210 | static bool scsi_target_emulate_inquiry(SCSITargetReq *r) | |
211 | { | |
212 | assert(r->req.dev->lun != r->req.lun); | |
213 | if (r->req.cmd.buf[1] & 0x2) { | |
214 | /* Command support data - optional, not implemented */ | |
215 | return false; | |
216 | } | |
217 | ||
218 | if (r->req.cmd.buf[1] & 0x1) { | |
219 | /* Vital product data */ | |
220 | uint8_t page_code = r->req.cmd.buf[2]; | |
221 | if (r->req.cmd.xfer < 4) { | |
222 | return false; | |
223 | } | |
224 | ||
225 | r->buf[r->len++] = page_code ; /* this page */ | |
226 | r->buf[r->len++] = 0x00; | |
227 | ||
228 | switch (page_code) { | |
229 | case 0x00: /* Supported page codes, mandatory */ | |
230 | { | |
231 | int pages; | |
232 | pages = r->len++; | |
233 | r->buf[r->len++] = 0x00; /* list of supported pages (this page) */ | |
234 | r->buf[pages] = r->len - pages - 1; /* number of pages */ | |
235 | break; | |
236 | } | |
237 | default: | |
238 | return false; | |
239 | } | |
240 | /* done with EVPD */ | |
241 | assert(r->len < sizeof(r->buf)); | |
242 | r->len = MIN(r->req.cmd.xfer, r->len); | |
243 | return true; | |
244 | } | |
245 | ||
246 | /* Standard INQUIRY data */ | |
247 | if (r->req.cmd.buf[2] != 0) { | |
248 | return false; | |
249 | } | |
250 | ||
251 | /* PAGE CODE == 0 */ | |
252 | if (r->req.cmd.xfer < 5) { | |
253 | return -1; | |
254 | } | |
255 | ||
256 | r->len = MIN(r->req.cmd.xfer, 36); | |
257 | memset(r->buf, 0, r->len); | |
258 | if (r->req.lun != 0) { | |
259 | r->buf[0] = TYPE_NO_LUN; | |
260 | } else { | |
261 | r->buf[0] = TYPE_NOT_PRESENT | TYPE_INACTIVE; | |
262 | r->buf[2] = 5; /* Version */ | |
263 | r->buf[3] = 2 | 0x10; /* HiSup, response data format */ | |
264 | r->buf[4] = r->len - 5; /* Additional Length = (Len - 1) - 4 */ | |
afd4030c | 265 | r->buf[7] = 0x10 | (r->req.bus->info->tcq ? 0x02 : 0); /* Sync, TCQ. */ |
fdaef069 PB |
266 | memcpy(&r->buf[8], "QEMU ", 8); |
267 | memcpy(&r->buf[16], "QEMU TARGET ", 16); | |
268 | strncpy((char *) &r->buf[32], QEMU_VERSION, 4); | |
269 | } | |
270 | return true; | |
271 | } | |
272 | ||
273 | static int32_t scsi_target_send_command(SCSIRequest *req, uint8_t *buf) | |
274 | { | |
275 | SCSITargetReq *r = DO_UPCAST(SCSITargetReq, req, req); | |
276 | ||
277 | switch (buf[0]) { | |
278 | case REPORT_LUNS: | |
279 | if (!scsi_target_emulate_report_luns(r)) { | |
280 | goto illegal_request; | |
281 | } | |
282 | break; | |
283 | case INQUIRY: | |
284 | if (!scsi_target_emulate_inquiry(r)) { | |
285 | goto illegal_request; | |
286 | } | |
287 | break; | |
739df215 PB |
288 | case REQUEST_SENSE: |
289 | if (req->cmd.xfer < 4) { | |
290 | goto illegal_request; | |
291 | } | |
8b2a04ee PB |
292 | r->len = scsi_device_get_sense(r->req.dev, r->buf, |
293 | MIN(req->cmd.xfer, sizeof r->buf), | |
739df215 | 294 | (req->cmd.buf[1] & 1) == 0); |
3653d8c4 PB |
295 | if (r->req.dev->sense_is_ua) { |
296 | if (r->req.dev->info->unit_attention_reported) { | |
297 | r->req.dev->info->unit_attention_reported(req->dev); | |
298 | } | |
299 | r->req.dev->sense_len = 0; | |
300 | r->req.dev->sense_is_ua = false; | |
301 | } | |
739df215 | 302 | break; |
fdaef069 PB |
303 | default: |
304 | scsi_req_build_sense(req, SENSE_CODE(LUN_NOT_SUPPORTED)); | |
305 | scsi_req_complete(req, CHECK_CONDITION); | |
306 | return 0; | |
307 | illegal_request: | |
308 | scsi_req_build_sense(req, SENSE_CODE(INVALID_FIELD)); | |
309 | scsi_req_complete(req, CHECK_CONDITION); | |
310 | return 0; | |
311 | } | |
312 | ||
313 | if (!r->len) { | |
314 | scsi_req_complete(req, GOOD); | |
315 | } | |
316 | return r->len; | |
317 | } | |
318 | ||
319 | static void scsi_target_read_data(SCSIRequest *req) | |
320 | { | |
321 | SCSITargetReq *r = DO_UPCAST(SCSITargetReq, req, req); | |
322 | uint32_t n; | |
323 | ||
324 | n = r->len; | |
325 | if (n > 0) { | |
326 | r->len = 0; | |
327 | scsi_req_data(&r->req, n); | |
328 | } else { | |
329 | scsi_req_complete(&r->req, GOOD); | |
330 | } | |
331 | } | |
332 | ||
333 | static uint8_t *scsi_target_get_buf(SCSIRequest *req) | |
334 | { | |
335 | SCSITargetReq *r = DO_UPCAST(SCSITargetReq, req, req); | |
336 | ||
337 | return r->buf; | |
338 | } | |
339 | ||
340 | struct SCSIReqOps reqops_target_command = { | |
341 | .size = sizeof(SCSITargetReq), | |
342 | .send_command = scsi_target_send_command, | |
343 | .read_data = scsi_target_read_data, | |
344 | .get_buf = scsi_target_get_buf, | |
345 | }; | |
346 | ||
347 | ||
8dbd4574 | 348 | SCSIRequest *scsi_req_alloc(SCSIReqOps *reqops, SCSIDevice *d, uint32_t tag, |
c5bf71a9 | 349 | uint32_t lun, void *hba_private) |
89b08ae1 GH |
350 | { |
351 | SCSIRequest *req; | |
352 | ||
7267c094 | 353 | req = g_malloc0(reqops->size); |
5c6c0e51 | 354 | req->refcount = 1; |
89b08ae1 GH |
355 | req->bus = scsi_bus_from_device(d); |
356 | req->dev = d; | |
357 | req->tag = tag; | |
358 | req->lun = lun; | |
c5bf71a9 | 359 | req->hba_private = hba_private; |
ed3a34a3 | 360 | req->status = -1; |
b45ef674 | 361 | req->sense_len = 0; |
8dbd4574 | 362 | req->ops = reqops; |
5138efec | 363 | trace_scsi_req_alloc(req->dev->id, req->lun, req->tag); |
89b08ae1 GH |
364 | return req; |
365 | } | |
366 | ||
c5bf71a9 | 367 | SCSIRequest *scsi_req_new(SCSIDevice *d, uint32_t tag, uint32_t lun, |
c39ce112 | 368 | uint8_t *buf, void *hba_private) |
43a2b339 | 369 | { |
6dc06f08 | 370 | SCSIBus *bus = DO_UPCAST(SCSIBus, qbus, d->qdev.parent_bus); |
c39ce112 | 371 | SCSIRequest *req; |
afa46c46 PB |
372 | SCSICommand cmd; |
373 | ||
374 | if (scsi_req_parse(&cmd, d, buf) != 0) { | |
375 | trace_scsi_req_parse_bad(d->id, lun, tag, buf[0]); | |
376 | req = scsi_req_alloc(&reqops_invalid_opcode, d, tag, lun, hba_private); | |
377 | } else { | |
378 | trace_scsi_req_parsed(d->id, lun, tag, buf[0], | |
379 | cmd.mode, cmd.xfer); | |
3b6ffe50 | 380 | if (cmd.lba != -1) { |
afa46c46 PB |
381 | trace_scsi_req_parsed_lba(d->id, lun, tag, buf[0], |
382 | cmd.lba); | |
383 | } | |
fdaef069 | 384 | |
6dc06f08 PB |
385 | if ((d->unit_attention.key == UNIT_ATTENTION || |
386 | bus->unit_attention.key == UNIT_ATTENTION) && | |
387 | (buf[0] != INQUIRY && | |
388 | buf[0] != REPORT_LUNS && | |
389 | buf[0] != GET_CONFIGURATION && | |
3653d8c4 PB |
390 | buf[0] != GET_EVENT_STATUS_NOTIFICATION && |
391 | ||
392 | /* | |
393 | * If we already have a pending unit attention condition, | |
394 | * report this one before triggering another one. | |
395 | */ | |
396 | !(buf[0] == REQUEST_SENSE && d->sense_is_ua))) { | |
6dc06f08 PB |
397 | req = scsi_req_alloc(&reqops_unit_attention, d, tag, lun, |
398 | hba_private); | |
399 | } else if (lun != d->lun || | |
739df215 PB |
400 | buf[0] == REPORT_LUNS || |
401 | buf[0] == REQUEST_SENSE) { | |
fdaef069 PB |
402 | req = scsi_req_alloc(&reqops_target_command, d, tag, lun, |
403 | hba_private); | |
404 | } else { | |
405 | req = d->info->alloc_req(d, tag, lun, hba_private); | |
406 | } | |
afa46c46 PB |
407 | } |
408 | ||
409 | req->cmd = cmd; | |
98254542 PB |
410 | switch (buf[0]) { |
411 | case INQUIRY: | |
412 | trace_scsi_inquiry(d->id, lun, tag, cmd.buf[1], cmd.buf[2]); | |
413 | break; | |
414 | case TEST_UNIT_READY: | |
415 | trace_scsi_test_unit_ready(d->id, lun, tag); | |
416 | break; | |
417 | case REPORT_LUNS: | |
418 | trace_scsi_report_luns(d->id, lun, tag); | |
419 | break; | |
420 | case REQUEST_SENSE: | |
421 | trace_scsi_request_sense(d->id, lun, tag); | |
422 | break; | |
423 | default: | |
424 | break; | |
425 | } | |
426 | ||
c39ce112 | 427 | return req; |
43a2b339 PB |
428 | } |
429 | ||
0c34459b PB |
430 | uint8_t *scsi_req_get_buf(SCSIRequest *req) |
431 | { | |
12010e7b | 432 | return req->ops->get_buf(req); |
0c34459b PB |
433 | } |
434 | ||
6dc06f08 PB |
435 | static void scsi_clear_unit_attention(SCSIRequest *req) |
436 | { | |
437 | SCSISense *ua; | |
438 | if (req->dev->unit_attention.key != UNIT_ATTENTION && | |
439 | req->bus->unit_attention.key != UNIT_ATTENTION) { | |
440 | return; | |
441 | } | |
442 | ||
443 | /* | |
444 | * If an INQUIRY command enters the enabled command state, | |
445 | * the device server shall [not] clear any unit attention condition; | |
446 | * See also MMC-6, paragraphs 6.5 and 6.6.2. | |
447 | */ | |
448 | if (req->cmd.buf[0] == INQUIRY || | |
449 | req->cmd.buf[0] == GET_CONFIGURATION || | |
450 | req->cmd.buf[0] == GET_EVENT_STATUS_NOTIFICATION) { | |
451 | return; | |
452 | } | |
453 | ||
454 | if (req->dev->unit_attention.key == UNIT_ATTENTION) { | |
455 | ua = &req->dev->unit_attention; | |
456 | } else { | |
457 | ua = &req->bus->unit_attention; | |
458 | } | |
459 | ||
460 | /* | |
461 | * If a REPORT LUNS command enters the enabled command state, [...] | |
462 | * the device server shall clear any pending unit attention condition | |
463 | * with an additional sense code of REPORTED LUNS DATA HAS CHANGED. | |
464 | */ | |
465 | if (req->cmd.buf[0] == REPORT_LUNS && | |
466 | !(ua->asc == SENSE_CODE(REPORTED_LUNS_CHANGED).asc && | |
467 | ua->ascq == SENSE_CODE(REPORTED_LUNS_CHANGED).ascq)) { | |
468 | return; | |
469 | } | |
470 | ||
471 | *ua = SENSE_CODE(NO_SENSE); | |
472 | } | |
473 | ||
74382217 HR |
474 | int scsi_req_get_sense(SCSIRequest *req, uint8_t *buf, int len) |
475 | { | |
6dc06f08 PB |
476 | int ret; |
477 | ||
b45ef674 PB |
478 | assert(len >= 14); |
479 | if (!req->sense_len) { | |
74382217 HR |
480 | return 0; |
481 | } | |
6dc06f08 PB |
482 | |
483 | ret = scsi_build_sense(req->sense, req->sense_len, buf, len, true); | |
484 | ||
485 | /* | |
486 | * FIXME: clearing unit attention conditions upon autosense should be done | |
487 | * only if the UA_INTLCK_CTRL field in the Control mode page is set to 00b | |
488 | * (SAM-5, 5.14). | |
489 | * | |
490 | * We assume UA_INTLCK_CTRL to be 00b for HBAs that support autosense, and | |
491 | * 10b for HBAs that do not support it (do not call scsi_req_get_sense). | |
3653d8c4 | 492 | * Here we handle unit attention clearing for UA_INTLCK_CTRL == 00b. |
6dc06f08 | 493 | */ |
3653d8c4 PB |
494 | if (req->dev->sense_is_ua) { |
495 | if (req->dev->info->unit_attention_reported) { | |
496 | req->dev->info->unit_attention_reported(req->dev); | |
497 | } | |
498 | req->dev->sense_len = 0; | |
499 | req->dev->sense_is_ua = false; | |
500 | } | |
6dc06f08 | 501 | return ret; |
b45ef674 PB |
502 | } |
503 | ||
504 | int scsi_device_get_sense(SCSIDevice *dev, uint8_t *buf, int len, bool fixed) | |
505 | { | |
506 | return scsi_build_sense(dev->sense, dev->sense_len, buf, len, fixed); | |
507 | } | |
508 | ||
509 | void scsi_req_build_sense(SCSIRequest *req, SCSISense sense) | |
510 | { | |
511 | trace_scsi_req_build_sense(req->dev->id, req->lun, req->tag, | |
512 | sense.key, sense.asc, sense.ascq); | |
513 | memset(req->sense, 0, 18); | |
514 | req->sense[0] = 0xf0; | |
515 | req->sense[2] = sense.key; | |
eae31cb9 | 516 | req->sense[7] = 10; |
b45ef674 PB |
517 | req->sense[12] = sense.asc; |
518 | req->sense[13] = sense.ascq; | |
519 | req->sense_len = 18; | |
74382217 HR |
520 | } |
521 | ||
c39ce112 | 522 | int32_t scsi_req_enqueue(SCSIRequest *req) |
89b08ae1 | 523 | { |
fc4f0754 PB |
524 | int32_t rc; |
525 | ||
5c6c0e51 HR |
526 | assert(!req->enqueued); |
527 | scsi_req_ref(req); | |
528 | req->enqueued = true; | |
529 | QTAILQ_INSERT_TAIL(&req->dev->requests, req, next); | |
fc4f0754 PB |
530 | |
531 | scsi_req_ref(req); | |
c39ce112 | 532 | rc = req->ops->send_command(req, req->cmd.buf); |
fc4f0754 PB |
533 | scsi_req_unref(req); |
534 | return rc; | |
89b08ae1 GH |
535 | } |
536 | ||
a1f0cce2 | 537 | static void scsi_req_dequeue(SCSIRequest *req) |
e8637c90 | 538 | { |
5138efec | 539 | trace_scsi_req_dequeue(req->dev->id, req->lun, req->tag); |
e8637c90 JK |
540 | if (req->enqueued) { |
541 | QTAILQ_REMOVE(&req->dev->requests, req, next); | |
542 | req->enqueued = false; | |
ad2d30f7 | 543 | scsi_req_unref(req); |
e8637c90 JK |
544 | } |
545 | } | |
546 | ||
2599aece | 547 | static int scsi_req_length(SCSICommand *cmd, SCSIDevice *dev, uint8_t *buf) |
2ec749cb | 548 | { |
2599aece | 549 | switch (buf[0] >> 5) { |
2ec749cb | 550 | case 0: |
2599aece PB |
551 | cmd->xfer = buf[4]; |
552 | cmd->len = 6; | |
2ec749cb | 553 | /* length 0 means 256 blocks */ |
2599aece PB |
554 | if (cmd->xfer == 0) { |
555 | cmd->xfer = 256; | |
556 | } | |
2ec749cb GH |
557 | break; |
558 | case 1: | |
559 | case 2: | |
bd5da232 | 560 | cmd->xfer = lduw_be_p(&buf[7]); |
2599aece | 561 | cmd->len = 10; |
2ec749cb GH |
562 | break; |
563 | case 4: | |
bd5da232 | 564 | cmd->xfer = ldl_be_p(&buf[10]); |
2599aece | 565 | cmd->len = 16; |
2ec749cb GH |
566 | break; |
567 | case 5: | |
bd5da232 | 568 | cmd->xfer = ldl_be_p(&buf[6]); |
2599aece | 569 | cmd->len = 12; |
2ec749cb GH |
570 | break; |
571 | default: | |
572 | return -1; | |
573 | } | |
574 | ||
2599aece | 575 | switch (buf[0]) { |
2ec749cb | 576 | case TEST_UNIT_READY: |
5e30a07d | 577 | case REWIND: |
2ec749cb GH |
578 | case START_STOP: |
579 | case SEEK_6: | |
580 | case WRITE_FILEMARKS: | |
581 | case SPACE: | |
a5e3d9ef BK |
582 | case RESERVE: |
583 | case RELEASE: | |
2ec749cb GH |
584 | case ERASE: |
585 | case ALLOW_MEDIUM_REMOVAL: | |
5e30a07d | 586 | case VERIFY_10: |
2ec749cb GH |
587 | case SEEK_10: |
588 | case SYNCHRONIZE_CACHE: | |
589 | case LOCK_UNLOCK_CACHE: | |
590 | case LOAD_UNLOAD: | |
591 | case SET_CD_SPEED: | |
592 | case SET_LIMITS: | |
5e30a07d | 593 | case WRITE_LONG_10: |
2ec749cb GH |
594 | case MOVE_MEDIUM: |
595 | case UPDATE_BLOCK: | |
2599aece | 596 | cmd->xfer = 0; |
2ec749cb GH |
597 | break; |
598 | case MODE_SENSE: | |
599 | break; | |
5e30a07d | 600 | case WRITE_SAME_10: |
2599aece | 601 | cmd->xfer = 1; |
2ec749cb | 602 | break; |
5e30a07d | 603 | case READ_CAPACITY_10: |
2599aece | 604 | cmd->xfer = 8; |
2ec749cb GH |
605 | break; |
606 | case READ_BLOCK_LIMITS: | |
2599aece | 607 | cmd->xfer = 6; |
2ec749cb GH |
608 | break; |
609 | case READ_POSITION: | |
2599aece | 610 | cmd->xfer = 20; |
2ec749cb GH |
611 | break; |
612 | case SEND_VOLUME_TAG: | |
2599aece | 613 | cmd->xfer *= 40; |
2ec749cb GH |
614 | break; |
615 | case MEDIUM_SCAN: | |
2599aece | 616 | cmd->xfer *= 8; |
2ec749cb GH |
617 | break; |
618 | case WRITE_10: | |
5e30a07d | 619 | case WRITE_VERIFY_10: |
2ec749cb GH |
620 | case WRITE_6: |
621 | case WRITE_12: | |
622 | case WRITE_VERIFY_12: | |
bd536cf3 GH |
623 | case WRITE_16: |
624 | case WRITE_VERIFY_16: | |
2599aece | 625 | cmd->xfer *= dev->blocksize; |
2ec749cb GH |
626 | break; |
627 | case READ_10: | |
628 | case READ_6: | |
629 | case READ_REVERSE: | |
630 | case RECOVER_BUFFERED_DATA: | |
631 | case READ_12: | |
bd536cf3 | 632 | case READ_16: |
2599aece | 633 | cmd->xfer *= dev->blocksize; |
2ec749cb GH |
634 | break; |
635 | case INQUIRY: | |
2599aece | 636 | cmd->xfer = buf[4] | (buf[3] << 8); |
2ec749cb | 637 | break; |
c7126d5b NB |
638 | case MAINTENANCE_OUT: |
639 | case MAINTENANCE_IN: | |
2599aece | 640 | if (dev->type == TYPE_ROM) { |
c7126d5b | 641 | /* GPCMD_REPORT_KEY and GPCMD_SEND_KEY from multi media commands */ |
2599aece | 642 | cmd->xfer = buf[9] | (buf[8] << 8); |
c7126d5b NB |
643 | } |
644 | break; | |
2ec749cb GH |
645 | } |
646 | return 0; | |
647 | } | |
648 | ||
2599aece | 649 | static int scsi_req_stream_length(SCSICommand *cmd, SCSIDevice *dev, uint8_t *buf) |
2ec749cb | 650 | { |
2599aece | 651 | switch (buf[0]) { |
2ec749cb GH |
652 | /* stream commands */ |
653 | case READ_6: | |
654 | case READ_REVERSE: | |
655 | case RECOVER_BUFFERED_DATA: | |
656 | case WRITE_6: | |
2599aece PB |
657 | cmd->len = 6; |
658 | cmd->xfer = buf[4] | (buf[3] << 8) | (buf[2] << 16); | |
659 | if (buf[1] & 0x01) { /* fixed */ | |
660 | cmd->xfer *= dev->blocksize; | |
661 | } | |
2ec749cb GH |
662 | break; |
663 | case REWIND: | |
664 | case START_STOP: | |
2599aece PB |
665 | cmd->len = 6; |
666 | cmd->xfer = 0; | |
2ec749cb GH |
667 | break; |
668 | /* generic commands */ | |
669 | default: | |
2599aece | 670 | return scsi_req_length(cmd, dev, buf); |
2ec749cb GH |
671 | } |
672 | return 0; | |
673 | } | |
674 | ||
2599aece | 675 | static void scsi_cmd_xfer_mode(SCSICommand *cmd) |
97a06435 | 676 | { |
2599aece | 677 | switch (cmd->buf[0]) { |
97a06435 GH |
678 | case WRITE_6: |
679 | case WRITE_10: | |
5e30a07d | 680 | case WRITE_VERIFY_10: |
97a06435 GH |
681 | case WRITE_12: |
682 | case WRITE_VERIFY_12: | |
bd536cf3 GH |
683 | case WRITE_16: |
684 | case WRITE_VERIFY_16: | |
97a06435 GH |
685 | case COPY: |
686 | case COPY_VERIFY: | |
687 | case COMPARE: | |
688 | case CHANGE_DEFINITION: | |
689 | case LOG_SELECT: | |
690 | case MODE_SELECT: | |
691 | case MODE_SELECT_10: | |
692 | case SEND_DIAGNOSTIC: | |
693 | case WRITE_BUFFER: | |
694 | case FORMAT_UNIT: | |
695 | case REASSIGN_BLOCKS: | |
97a06435 GH |
696 | case SEARCH_EQUAL: |
697 | case SEARCH_HIGH: | |
698 | case SEARCH_LOW: | |
699 | case UPDATE_BLOCK: | |
5e30a07d HR |
700 | case WRITE_LONG_10: |
701 | case WRITE_SAME_10: | |
97a06435 GH |
702 | case SEARCH_HIGH_12: |
703 | case SEARCH_EQUAL_12: | |
704 | case SEARCH_LOW_12: | |
97a06435 GH |
705 | case MEDIUM_SCAN: |
706 | case SEND_VOLUME_TAG: | |
01bedeba | 707 | case PERSISTENT_RESERVE_OUT: |
c7126d5b | 708 | case MAINTENANCE_OUT: |
2599aece | 709 | cmd->mode = SCSI_XFER_TO_DEV; |
97a06435 GH |
710 | break; |
711 | default: | |
2599aece PB |
712 | if (cmd->xfer) |
713 | cmd->mode = SCSI_XFER_FROM_DEV; | |
97a06435 | 714 | else { |
2599aece | 715 | cmd->mode = SCSI_XFER_NONE; |
97a06435 GH |
716 | } |
717 | break; | |
718 | } | |
719 | } | |
720 | ||
2599aece | 721 | static uint64_t scsi_cmd_lba(SCSICommand *cmd) |
2ec749cb | 722 | { |
2599aece | 723 | uint8_t *buf = cmd->buf; |
2ec749cb GH |
724 | uint64_t lba; |
725 | ||
726 | switch (buf[0] >> 5) { | |
727 | case 0: | |
bd5da232 | 728 | lba = ldl_be_p(&buf[0]) & 0x1fffff; |
2ec749cb GH |
729 | break; |
730 | case 1: | |
731 | case 2: | |
bd5da232 PB |
732 | case 5: |
733 | lba = ldl_be_p(&buf[2]); | |
2ec749cb GH |
734 | break; |
735 | case 4: | |
bd5da232 | 736 | lba = ldq_be_p(&buf[2]); |
2ec749cb GH |
737 | break; |
738 | default: | |
739 | lba = -1; | |
740 | ||
741 | } | |
742 | return lba; | |
743 | } | |
744 | ||
afa46c46 | 745 | int scsi_req_parse(SCSICommand *cmd, SCSIDevice *dev, uint8_t *buf) |
2ec749cb GH |
746 | { |
747 | int rc; | |
748 | ||
afa46c46 PB |
749 | if (dev->type == TYPE_TAPE) { |
750 | rc = scsi_req_stream_length(cmd, dev, buf); | |
2ec749cb | 751 | } else { |
afa46c46 | 752 | rc = scsi_req_length(cmd, dev, buf); |
2ec749cb GH |
753 | } |
754 | if (rc != 0) | |
755 | return rc; | |
756 | ||
afa46c46 PB |
757 | memcpy(cmd->buf, buf, cmd->len); |
758 | scsi_cmd_xfer_mode(cmd); | |
759 | cmd->lba = scsi_cmd_lba(cmd); | |
2ec749cb GH |
760 | return 0; |
761 | } | |
ed3a34a3 | 762 | |
a1f0cce2 HR |
763 | /* |
764 | * Predefined sense codes | |
765 | */ | |
766 | ||
767 | /* No sense data available */ | |
768 | const struct SCSISense sense_code_NO_SENSE = { | |
769 | .key = NO_SENSE , .asc = 0x00 , .ascq = 0x00 | |
770 | }; | |
771 | ||
772 | /* LUN not ready, Manual intervention required */ | |
773 | const struct SCSISense sense_code_LUN_NOT_READY = { | |
774 | .key = NOT_READY, .asc = 0x04, .ascq = 0x03 | |
775 | }; | |
776 | ||
777 | /* LUN not ready, Medium not present */ | |
778 | const struct SCSISense sense_code_NO_MEDIUM = { | |
779 | .key = NOT_READY, .asc = 0x3a, .ascq = 0x00 | |
780 | }; | |
781 | ||
68bb01f3 MA |
782 | /* LUN not ready, medium removal prevented */ |
783 | const struct SCSISense sense_code_NOT_READY_REMOVAL_PREVENTED = { | |
784 | .key = NOT_READY, .asc = 0x53, .ascq = 0x00 | |
785 | }; | |
786 | ||
a1f0cce2 HR |
787 | /* Hardware error, internal target failure */ |
788 | const struct SCSISense sense_code_TARGET_FAILURE = { | |
789 | .key = HARDWARE_ERROR, .asc = 0x44, .ascq = 0x00 | |
790 | }; | |
791 | ||
792 | /* Illegal request, invalid command operation code */ | |
793 | const struct SCSISense sense_code_INVALID_OPCODE = { | |
794 | .key = ILLEGAL_REQUEST, .asc = 0x20, .ascq = 0x00 | |
795 | }; | |
796 | ||
797 | /* Illegal request, LBA out of range */ | |
798 | const struct SCSISense sense_code_LBA_OUT_OF_RANGE = { | |
799 | .key = ILLEGAL_REQUEST, .asc = 0x21, .ascq = 0x00 | |
800 | }; | |
801 | ||
802 | /* Illegal request, Invalid field in CDB */ | |
803 | const struct SCSISense sense_code_INVALID_FIELD = { | |
804 | .key = ILLEGAL_REQUEST, .asc = 0x24, .ascq = 0x00 | |
805 | }; | |
806 | ||
807 | /* Illegal request, LUN not supported */ | |
808 | const struct SCSISense sense_code_LUN_NOT_SUPPORTED = { | |
809 | .key = ILLEGAL_REQUEST, .asc = 0x25, .ascq = 0x00 | |
810 | }; | |
811 | ||
a872a304 PB |
812 | /* Illegal request, Saving parameters not supported */ |
813 | const struct SCSISense sense_code_SAVING_PARAMS_NOT_SUPPORTED = { | |
814 | .key = ILLEGAL_REQUEST, .asc = 0x39, .ascq = 0x00 | |
815 | }; | |
816 | ||
817 | /* Illegal request, Incompatible medium installed */ | |
67cc61e4 | 818 | const struct SCSISense sense_code_INCOMPATIBLE_FORMAT = { |
a872a304 PB |
819 | .key = ILLEGAL_REQUEST, .asc = 0x30, .ascq = 0x00 |
820 | }; | |
821 | ||
68bb01f3 MA |
822 | /* Illegal request, medium removal prevented */ |
823 | const struct SCSISense sense_code_ILLEGAL_REQ_REMOVAL_PREVENTED = { | |
824 | .key = ILLEGAL_REQUEST, .asc = 0x53, .ascq = 0x00 | |
825 | }; | |
826 | ||
a1f0cce2 HR |
827 | /* Command aborted, I/O process terminated */ |
828 | const struct SCSISense sense_code_IO_ERROR = { | |
829 | .key = ABORTED_COMMAND, .asc = 0x00, .ascq = 0x06 | |
830 | }; | |
831 | ||
832 | /* Command aborted, I_T Nexus loss occurred */ | |
833 | const struct SCSISense sense_code_I_T_NEXUS_LOSS = { | |
834 | .key = ABORTED_COMMAND, .asc = 0x29, .ascq = 0x07 | |
835 | }; | |
836 | ||
837 | /* Command aborted, Logical Unit failure */ | |
838 | const struct SCSISense sense_code_LUN_FAILURE = { | |
839 | .key = ABORTED_COMMAND, .asc = 0x3e, .ascq = 0x01 | |
840 | }; | |
841 | ||
a872a304 PB |
842 | /* Unit attention, Power on, reset or bus device reset occurred */ |
843 | const struct SCSISense sense_code_RESET = { | |
844 | .key = UNIT_ATTENTION, .asc = 0x29, .ascq = 0x00 | |
845 | }; | |
846 | ||
8a9c16f6 PB |
847 | /* Unit attention, No medium */ |
848 | const struct SCSISense sense_code_UNIT_ATTENTION_NO_MEDIUM = { | |
849 | .key = UNIT_ATTENTION, .asc = 0x3a, .ascq = 0x00 | |
850 | }; | |
851 | ||
a872a304 PB |
852 | /* Unit attention, Medium may have changed */ |
853 | const struct SCSISense sense_code_MEDIUM_CHANGED = { | |
854 | .key = UNIT_ATTENTION, .asc = 0x28, .ascq = 0x00 | |
855 | }; | |
856 | ||
857 | /* Unit attention, Reported LUNs data has changed */ | |
858 | const struct SCSISense sense_code_REPORTED_LUNS_CHANGED = { | |
859 | .key = UNIT_ATTENTION, .asc = 0x3f, .ascq = 0x0e | |
860 | }; | |
861 | ||
862 | /* Unit attention, Device internal reset */ | |
863 | const struct SCSISense sense_code_DEVICE_INTERNAL_RESET = { | |
864 | .key = UNIT_ATTENTION, .asc = 0x29, .ascq = 0x04 | |
865 | }; | |
866 | ||
a1f0cce2 HR |
867 | /* |
868 | * scsi_build_sense | |
869 | * | |
b45ef674 | 870 | * Convert between fixed and descriptor sense buffers |
a1f0cce2 | 871 | */ |
b45ef674 PB |
872 | int scsi_build_sense(uint8_t *in_buf, int in_len, |
873 | uint8_t *buf, int len, bool fixed) | |
a1f0cce2 | 874 | { |
b45ef674 PB |
875 | bool fixed_in; |
876 | SCSISense sense; | |
a1f0cce2 HR |
877 | if (!fixed && len < 8) { |
878 | return 0; | |
879 | } | |
880 | ||
b45ef674 PB |
881 | if (in_len == 0) { |
882 | sense.key = NO_SENSE; | |
883 | sense.asc = 0; | |
884 | sense.ascq = 0; | |
885 | } else { | |
886 | fixed_in = (in_buf[0] & 2) == 0; | |
887 | ||
888 | if (fixed == fixed_in) { | |
889 | memcpy(buf, in_buf, MIN(len, in_len)); | |
890 | return MIN(len, in_len); | |
891 | } | |
892 | ||
893 | if (fixed_in) { | |
894 | sense.key = in_buf[2]; | |
895 | sense.asc = in_buf[12]; | |
896 | sense.ascq = in_buf[13]; | |
897 | } else { | |
898 | sense.key = in_buf[1]; | |
899 | sense.asc = in_buf[2]; | |
900 | sense.ascq = in_buf[3]; | |
901 | } | |
902 | } | |
903 | ||
a1f0cce2 HR |
904 | memset(buf, 0, len); |
905 | if (fixed) { | |
906 | /* Return fixed format sense buffer */ | |
907 | buf[0] = 0xf0; | |
908 | buf[2] = sense.key; | |
eae31cb9 | 909 | buf[7] = 10; |
a1f0cce2 HR |
910 | buf[12] = sense.asc; |
911 | buf[13] = sense.ascq; | |
912 | return MIN(len, 18); | |
913 | } else { | |
914 | /* Return descriptor format sense buffer */ | |
915 | buf[0] = 0x72; | |
916 | buf[1] = sense.key; | |
917 | buf[2] = sense.asc; | |
918 | buf[3] = sense.ascq; | |
919 | return 8; | |
920 | } | |
921 | } | |
922 | ||
ec766865 GH |
923 | static const char *scsi_command_name(uint8_t cmd) |
924 | { | |
925 | static const char *names[] = { | |
926 | [ TEST_UNIT_READY ] = "TEST_UNIT_READY", | |
5e30a07d | 927 | [ REWIND ] = "REWIND", |
ec766865 GH |
928 | [ REQUEST_SENSE ] = "REQUEST_SENSE", |
929 | [ FORMAT_UNIT ] = "FORMAT_UNIT", | |
930 | [ READ_BLOCK_LIMITS ] = "READ_BLOCK_LIMITS", | |
931 | [ REASSIGN_BLOCKS ] = "REASSIGN_BLOCKS", | |
932 | [ READ_6 ] = "READ_6", | |
933 | [ WRITE_6 ] = "WRITE_6", | |
934 | [ SEEK_6 ] = "SEEK_6", | |
935 | [ READ_REVERSE ] = "READ_REVERSE", | |
936 | [ WRITE_FILEMARKS ] = "WRITE_FILEMARKS", | |
937 | [ SPACE ] = "SPACE", | |
938 | [ INQUIRY ] = "INQUIRY", | |
939 | [ RECOVER_BUFFERED_DATA ] = "RECOVER_BUFFERED_DATA", | |
c7126d5b NB |
940 | [ MAINTENANCE_IN ] = "MAINTENANCE_IN", |
941 | [ MAINTENANCE_OUT ] = "MAINTENANCE_OUT", | |
ec766865 GH |
942 | [ MODE_SELECT ] = "MODE_SELECT", |
943 | [ RESERVE ] = "RESERVE", | |
944 | [ RELEASE ] = "RELEASE", | |
945 | [ COPY ] = "COPY", | |
946 | [ ERASE ] = "ERASE", | |
947 | [ MODE_SENSE ] = "MODE_SENSE", | |
948 | [ START_STOP ] = "START_STOP", | |
949 | [ RECEIVE_DIAGNOSTIC ] = "RECEIVE_DIAGNOSTIC", | |
950 | [ SEND_DIAGNOSTIC ] = "SEND_DIAGNOSTIC", | |
951 | [ ALLOW_MEDIUM_REMOVAL ] = "ALLOW_MEDIUM_REMOVAL", | |
5e30a07d | 952 | [ READ_CAPACITY_10 ] = "READ_CAPACITY_10", |
ec766865 GH |
953 | [ READ_10 ] = "READ_10", |
954 | [ WRITE_10 ] = "WRITE_10", | |
955 | [ SEEK_10 ] = "SEEK_10", | |
5e30a07d HR |
956 | [ WRITE_VERIFY_10 ] = "WRITE_VERIFY_10", |
957 | [ VERIFY_10 ] = "VERIFY_10", | |
ec766865 GH |
958 | [ SEARCH_HIGH ] = "SEARCH_HIGH", |
959 | [ SEARCH_EQUAL ] = "SEARCH_EQUAL", | |
960 | [ SEARCH_LOW ] = "SEARCH_LOW", | |
961 | [ SET_LIMITS ] = "SET_LIMITS", | |
962 | [ PRE_FETCH ] = "PRE_FETCH", | |
545557d4 | 963 | /* READ_POSITION and PRE_FETCH use the same operation code */ |
ec766865 GH |
964 | [ SYNCHRONIZE_CACHE ] = "SYNCHRONIZE_CACHE", |
965 | [ LOCK_UNLOCK_CACHE ] = "LOCK_UNLOCK_CACHE", | |
966 | [ READ_DEFECT_DATA ] = "READ_DEFECT_DATA", | |
967 | [ MEDIUM_SCAN ] = "MEDIUM_SCAN", | |
968 | [ COMPARE ] = "COMPARE", | |
969 | [ COPY_VERIFY ] = "COPY_VERIFY", | |
970 | [ WRITE_BUFFER ] = "WRITE_BUFFER", | |
971 | [ READ_BUFFER ] = "READ_BUFFER", | |
972 | [ UPDATE_BLOCK ] = "UPDATE_BLOCK", | |
5e30a07d HR |
973 | [ READ_LONG_10 ] = "READ_LONG_10", |
974 | [ WRITE_LONG_10 ] = "WRITE_LONG_10", | |
ec766865 | 975 | [ CHANGE_DEFINITION ] = "CHANGE_DEFINITION", |
5e30a07d HR |
976 | [ WRITE_SAME_10 ] = "WRITE_SAME_10", |
977 | [ UNMAP ] = "UNMAP", | |
ec766865 | 978 | [ READ_TOC ] = "READ_TOC", |
5e30a07d HR |
979 | [ REPORT_DENSITY_SUPPORT ] = "REPORT_DENSITY_SUPPORT", |
980 | [ GET_CONFIGURATION ] = "GET_CONFIGURATION", | |
ec766865 GH |
981 | [ LOG_SELECT ] = "LOG_SELECT", |
982 | [ LOG_SENSE ] = "LOG_SENSE", | |
983 | [ MODE_SELECT_10 ] = "MODE_SELECT_10", | |
984 | [ RESERVE_10 ] = "RESERVE_10", | |
985 | [ RELEASE_10 ] = "RELEASE_10", | |
986 | [ MODE_SENSE_10 ] = "MODE_SENSE_10", | |
987 | [ PERSISTENT_RESERVE_IN ] = "PERSISTENT_RESERVE_IN", | |
988 | [ PERSISTENT_RESERVE_OUT ] = "PERSISTENT_RESERVE_OUT", | |
5e30a07d HR |
989 | [ WRITE_FILEMARKS_16 ] = "WRITE_FILEMARKS_16", |
990 | [ EXTENDED_COPY ] = "EXTENDED_COPY", | |
991 | [ ATA_PASSTHROUGH ] = "ATA_PASSTHROUGH", | |
992 | [ ACCESS_CONTROL_IN ] = "ACCESS_CONTROL_IN", | |
993 | [ ACCESS_CONTROL_OUT ] = "ACCESS_CONTROL_OUT", | |
994 | [ READ_16 ] = "READ_16", | |
995 | [ COMPARE_AND_WRITE ] = "COMPARE_AND_WRITE", | |
996 | [ WRITE_16 ] = "WRITE_16", | |
997 | [ WRITE_VERIFY_16 ] = "WRITE_VERIFY_16", | |
998 | [ VERIFY_16 ] = "VERIFY_16", | |
999 | [ SYNCHRONIZE_CACHE_16 ] = "SYNCHRONIZE_CACHE_16", | |
1000 | [ LOCATE_16 ] = "LOCATE_16", | |
1001 | [ WRITE_SAME_16 ] = "WRITE_SAME_16", | |
48bb9f53 | 1002 | /* ERASE_16 and WRITE_SAME_16 use the same operation code */ |
f6515262 | 1003 | [ SERVICE_ACTION_IN_16 ] = "SERVICE_ACTION_IN_16", |
5e30a07d HR |
1004 | [ WRITE_LONG_16 ] = "WRITE_LONG_16", |
1005 | [ REPORT_LUNS ] = "REPORT_LUNS", | |
1006 | [ BLANK ] = "BLANK", | |
ec766865 | 1007 | [ MOVE_MEDIUM ] = "MOVE_MEDIUM", |
5e30a07d | 1008 | [ LOAD_UNLOAD ] = "LOAD_UNLOAD", |
ec766865 GH |
1009 | [ READ_12 ] = "READ_12", |
1010 | [ WRITE_12 ] = "WRITE_12", | |
f6515262 | 1011 | [ SERVICE_ACTION_IN_12 ] = "SERVICE_ACTION_IN_12", |
ec766865 | 1012 | [ WRITE_VERIFY_12 ] = "WRITE_VERIFY_12", |
5e30a07d | 1013 | [ VERIFY_12 ] = "VERIFY_12", |
ec766865 GH |
1014 | [ SEARCH_HIGH_12 ] = "SEARCH_HIGH_12", |
1015 | [ SEARCH_EQUAL_12 ] = "SEARCH_EQUAL_12", | |
1016 | [ SEARCH_LOW_12 ] = "SEARCH_LOW_12", | |
1017 | [ READ_ELEMENT_STATUS ] = "READ_ELEMENT_STATUS", | |
1018 | [ SEND_VOLUME_TAG ] = "SEND_VOLUME_TAG", | |
5e30a07d | 1019 | [ READ_DEFECT_DATA_12 ] = "READ_DEFECT_DATA_12", |
ec766865 | 1020 | [ SET_CD_SPEED ] = "SET_CD_SPEED", |
ec766865 GH |
1021 | }; |
1022 | ||
1023 | if (cmd >= ARRAY_SIZE(names) || names[cmd] == NULL) | |
1024 | return "*UNKNOWN*"; | |
1025 | return names[cmd]; | |
1026 | } | |
1027 | ||
ad2d30f7 PB |
1028 | SCSIRequest *scsi_req_ref(SCSIRequest *req) |
1029 | { | |
1030 | req->refcount++; | |
1031 | return req; | |
1032 | } | |
1033 | ||
1034 | void scsi_req_unref(SCSIRequest *req) | |
1035 | { | |
1036 | if (--req->refcount == 0) { | |
12010e7b PB |
1037 | if (req->ops->free_req) { |
1038 | req->ops->free_req(req); | |
ad2d30f7 | 1039 | } |
7267c094 | 1040 | g_free(req); |
ad2d30f7 PB |
1041 | } |
1042 | } | |
1043 | ||
ad3376cc PB |
1044 | /* Tell the device that we finished processing this chunk of I/O. It |
1045 | will start the next chunk or complete the command. */ | |
1046 | void scsi_req_continue(SCSIRequest *req) | |
1047 | { | |
1048 | trace_scsi_req_continue(req->dev->id, req->lun, req->tag); | |
1049 | if (req->cmd.mode == SCSI_XFER_TO_DEV) { | |
12010e7b | 1050 | req->ops->write_data(req); |
ad3376cc | 1051 | } else { |
12010e7b | 1052 | req->ops->read_data(req); |
ad3376cc PB |
1053 | } |
1054 | } | |
1055 | ||
ab9adc88 PB |
1056 | /* Called by the devices when data is ready for the HBA. The HBA should |
1057 | start a DMA operation to read or fill the device's data buffer. | |
ad3376cc | 1058 | Once it completes, calling scsi_req_continue will restart I/O. */ |
ab9adc88 PB |
1059 | void scsi_req_data(SCSIRequest *req, int len) |
1060 | { | |
1061 | trace_scsi_req_data(req->dev->id, req->lun, req->tag, len); | |
afd4030c | 1062 | req->bus->info->transfer_data(req, len); |
ab9adc88 PB |
1063 | } |
1064 | ||
ec766865 GH |
1065 | void scsi_req_print(SCSIRequest *req) |
1066 | { | |
1067 | FILE *fp = stderr; | |
1068 | int i; | |
1069 | ||
1070 | fprintf(fp, "[%s id=%d] %s", | |
1071 | req->dev->qdev.parent_bus->name, | |
1072 | req->dev->id, | |
1073 | scsi_command_name(req->cmd.buf[0])); | |
1074 | for (i = 1; i < req->cmd.len; i++) { | |
1075 | fprintf(fp, " 0x%02x", req->cmd.buf[i]); | |
1076 | } | |
1077 | switch (req->cmd.mode) { | |
1078 | case SCSI_XFER_NONE: | |
1079 | fprintf(fp, " - none\n"); | |
1080 | break; | |
1081 | case SCSI_XFER_FROM_DEV: | |
1082 | fprintf(fp, " - from-dev len=%zd\n", req->cmd.xfer); | |
1083 | break; | |
1084 | case SCSI_XFER_TO_DEV: | |
1085 | fprintf(fp, " - to-dev len=%zd\n", req->cmd.xfer); | |
1086 | break; | |
1087 | default: | |
1088 | fprintf(fp, " - Oops\n"); | |
1089 | break; | |
1090 | } | |
1091 | } | |
1092 | ||
682a9b21 | 1093 | void scsi_req_complete(SCSIRequest *req, int status) |
ed3a34a3 | 1094 | { |
682a9b21 PB |
1095 | assert(req->status == -1); |
1096 | req->status = status; | |
b45ef674 PB |
1097 | |
1098 | assert(req->sense_len < sizeof(req->sense)); | |
1099 | if (status == GOOD) { | |
1100 | req->sense_len = 0; | |
1101 | } | |
1102 | ||
1103 | if (req->sense_len) { | |
1104 | memcpy(req->dev->sense, req->sense, req->sense_len); | |
3653d8c4 PB |
1105 | req->dev->sense_len = req->sense_len; |
1106 | req->dev->sense_is_ua = (req->ops == &reqops_unit_attention); | |
1107 | } else { | |
1108 | req->dev->sense_len = 0; | |
1109 | req->dev->sense_is_ua = false; | |
b45ef674 | 1110 | } |
b45ef674 | 1111 | |
6dc06f08 PB |
1112 | /* |
1113 | * Unit attention state is now stored in the device's sense buffer | |
1114 | * if the HBA didn't do autosense. Clear the pending unit attention | |
1115 | * flags. | |
1116 | */ | |
1117 | scsi_clear_unit_attention(req); | |
1118 | ||
ad2d30f7 | 1119 | scsi_req_ref(req); |
e8637c90 | 1120 | scsi_req_dequeue(req); |
afd4030c | 1121 | req->bus->info->complete(req, req->status); |
ad2d30f7 | 1122 | scsi_req_unref(req); |
ed3a34a3 | 1123 | } |
db07c0f8 | 1124 | |
94d3f98a PB |
1125 | void scsi_req_cancel(SCSIRequest *req) |
1126 | { | |
12010e7b PB |
1127 | if (req->ops->cancel_io) { |
1128 | req->ops->cancel_io(req); | |
94d3f98a PB |
1129 | } |
1130 | scsi_req_ref(req); | |
1131 | scsi_req_dequeue(req); | |
afd4030c PB |
1132 | if (req->bus->info->cancel) { |
1133 | req->bus->info->cancel(req); | |
94d3f98a PB |
1134 | } |
1135 | scsi_req_unref(req); | |
1136 | } | |
1137 | ||
19d110ab PB |
1138 | void scsi_req_abort(SCSIRequest *req, int status) |
1139 | { | |
12010e7b PB |
1140 | if (req->ops->cancel_io) { |
1141 | req->ops->cancel_io(req); | |
19d110ab | 1142 | } |
682a9b21 | 1143 | scsi_req_complete(req, status); |
19d110ab PB |
1144 | } |
1145 | ||
c7b48872 | 1146 | void scsi_device_purge_requests(SCSIDevice *sdev, SCSISense sense) |
c557e889 PB |
1147 | { |
1148 | SCSIRequest *req; | |
1149 | ||
1150 | while (!QTAILQ_EMPTY(&sdev->requests)) { | |
1151 | req = QTAILQ_FIRST(&sdev->requests); | |
94d3f98a | 1152 | scsi_req_cancel(req); |
c557e889 | 1153 | } |
c7b48872 | 1154 | sdev->unit_attention = sense; |
c557e889 PB |
1155 | } |
1156 | ||
db07c0f8 GN |
1157 | static char *scsibus_get_fw_dev_path(DeviceState *dev) |
1158 | { | |
645a8ad6 | 1159 | SCSIDevice *d = DO_UPCAST(SCSIDevice, qdev, dev); |
db07c0f8 GN |
1160 | SCSIBus *bus = scsi_bus_from_device(d); |
1161 | char path[100]; | |
1162 | int i; | |
1163 | ||
afd4030c | 1164 | for (i = 0; i < bus->info->ndev; i++) { |
db07c0f8 GN |
1165 | if (bus->devs[i] == d) { |
1166 | break; | |
1167 | } | |
1168 | } | |
1169 | ||
afd4030c | 1170 | assert(i != bus->info->ndev); |
db07c0f8 GN |
1171 | |
1172 | snprintf(path, sizeof(path), "%s@%x", qdev_fw_name(dev), i); | |
1173 | ||
1174 | return strdup(path); | |
1175 | } |