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Commit | Line | Data |
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83c9f4ca | 1 | #include "hw/hw.h" |
1de7afc9 | 2 | #include "qemu/error-report.h" |
0d09e41a PB |
3 | #include "hw/scsi/scsi.h" |
4 | #include "block/scsi.h" | |
83c9f4ca | 5 | #include "hw/qdev.h" |
9c17d615 | 6 | #include "sysemu/blockdev.h" |
5138efec | 7 | #include "trace.h" |
9c17d615 | 8 | #include "sysemu/dma.h" |
d52affa7 | 9 | |
baa1bd89 | 10 | static char *scsibus_get_dev_path(DeviceState *dev); |
db07c0f8 | 11 | static char *scsibus_get_fw_dev_path(DeviceState *dev); |
afa46c46 | 12 | static int scsi_req_parse(SCSICommand *cmd, SCSIDevice *dev, uint8_t *buf); |
71544d30 | 13 | static void scsi_req_dequeue(SCSIRequest *req); |
84642435 AH |
14 | static uint8_t *scsi_target_alloc_buf(SCSIRequest *req, size_t len); |
15 | static void scsi_target_free_buf(SCSIRequest *req); | |
db07c0f8 | 16 | |
3cb75a7c PB |
17 | static Property scsi_props[] = { |
18 | DEFINE_PROP_UINT32("channel", SCSIDevice, channel, 0), | |
19 | DEFINE_PROP_UINT32("scsi-id", SCSIDevice, id, -1), | |
20 | DEFINE_PROP_UINT32("lun", SCSIDevice, lun, -1), | |
21 | DEFINE_PROP_END_OF_LIST(), | |
22 | }; | |
23 | ||
0d936928 AL |
24 | static void scsi_bus_class_init(ObjectClass *klass, void *data) |
25 | { | |
26 | BusClass *k = BUS_CLASS(klass); | |
27 | ||
28 | k->get_dev_path = scsibus_get_dev_path; | |
29 | k->get_fw_dev_path = scsibus_get_fw_dev_path; | |
30 | } | |
31 | ||
32 | static const TypeInfo scsi_bus_info = { | |
33 | .name = TYPE_SCSI_BUS, | |
34 | .parent = TYPE_BUS, | |
35 | .instance_size = sizeof(SCSIBus), | |
36 | .class_init = scsi_bus_class_init, | |
d52affa7 GH |
37 | }; |
38 | static int next_scsi_bus; | |
39 | ||
b9eea3e6 AL |
40 | static int scsi_device_init(SCSIDevice *s) |
41 | { | |
42 | SCSIDeviceClass *sc = SCSI_DEVICE_GET_CLASS(s); | |
43 | if (sc->init) { | |
44 | return sc->init(s); | |
45 | } | |
46 | return 0; | |
47 | } | |
48 | ||
49 | static void scsi_device_destroy(SCSIDevice *s) | |
50 | { | |
51 | SCSIDeviceClass *sc = SCSI_DEVICE_GET_CLASS(s); | |
52 | if (sc->destroy) { | |
53 | sc->destroy(s); | |
54 | } | |
55 | } | |
56 | ||
57 | static SCSIRequest *scsi_device_alloc_req(SCSIDevice *s, uint32_t tag, uint32_t lun, | |
58 | uint8_t *buf, void *hba_private) | |
59 | { | |
60 | SCSIDeviceClass *sc = SCSI_DEVICE_GET_CLASS(s); | |
61 | if (sc->alloc_req) { | |
62 | return sc->alloc_req(s, tag, lun, buf, hba_private); | |
63 | } | |
64 | ||
65 | return NULL; | |
66 | } | |
67 | ||
68 | static void scsi_device_unit_attention_reported(SCSIDevice *s) | |
69 | { | |
70 | SCSIDeviceClass *sc = SCSI_DEVICE_GET_CLASS(s); | |
71 | if (sc->unit_attention_reported) { | |
72 | sc->unit_attention_reported(s); | |
73 | } | |
74 | } | |
75 | ||
d52affa7 | 76 | /* Create a scsi bus, and attach devices to it. */ |
b1187b51 AF |
77 | void scsi_bus_new(SCSIBus *bus, size_t bus_size, DeviceState *host, |
78 | const SCSIBusInfo *info, const char *bus_name) | |
d52affa7 | 79 | { |
fb17dfe0 | 80 | qbus_create_inplace(bus, bus_size, TYPE_SCSI_BUS, host, bus_name); |
d52affa7 | 81 | bus->busnr = next_scsi_bus++; |
afd4030c | 82 | bus->info = info; |
cb23117b | 83 | bus->qbus.allow_hotplug = 1; |
d52affa7 GH |
84 | } |
85 | ||
71544d30 PB |
86 | static void scsi_dma_restart_bh(void *opaque) |
87 | { | |
88 | SCSIDevice *s = opaque; | |
89 | SCSIRequest *req, *next; | |
90 | ||
91 | qemu_bh_delete(s->bh); | |
92 | s->bh = NULL; | |
93 | ||
94 | QTAILQ_FOREACH_SAFE(req, &s->requests, next, next) { | |
95 | scsi_req_ref(req); | |
96 | if (req->retry) { | |
97 | req->retry = false; | |
98 | switch (req->cmd.mode) { | |
99 | case SCSI_XFER_FROM_DEV: | |
100 | case SCSI_XFER_TO_DEV: | |
101 | scsi_req_continue(req); | |
102 | break; | |
103 | case SCSI_XFER_NONE: | |
104 | scsi_req_dequeue(req); | |
105 | scsi_req_enqueue(req); | |
106 | break; | |
107 | } | |
108 | } | |
109 | scsi_req_unref(req); | |
110 | } | |
111 | } | |
112 | ||
113 | void scsi_req_retry(SCSIRequest *req) | |
114 | { | |
115 | /* No need to save a reference, because scsi_dma_restart_bh just | |
116 | * looks at the request list. */ | |
117 | req->retry = true; | |
118 | } | |
119 | ||
120 | static void scsi_dma_restart_cb(void *opaque, int running, RunState state) | |
121 | { | |
122 | SCSIDevice *s = opaque; | |
123 | ||
124 | if (!running) { | |
125 | return; | |
126 | } | |
127 | if (!s->bh) { | |
128 | s->bh = qemu_bh_new(scsi_dma_restart_bh, s); | |
129 | qemu_bh_schedule(s->bh); | |
130 | } | |
131 | } | |
132 | ||
d307af79 | 133 | static int scsi_qdev_init(DeviceState *qdev) |
d52affa7 | 134 | { |
b9eea3e6 | 135 | SCSIDevice *dev = SCSI_DEVICE(qdev); |
d52affa7 | 136 | SCSIBus *bus = DO_UPCAST(SCSIBus, qbus, dev->qdev.parent_bus); |
7e0380b9 | 137 | SCSIDevice *d; |
01985dcf | 138 | int rc = -1; |
d52affa7 | 139 | |
0d3545e7 PB |
140 | if (dev->channel > bus->info->max_channel) { |
141 | error_report("bad scsi channel id: %d", dev->channel); | |
142 | goto err; | |
143 | } | |
7e0380b9 | 144 | if (dev->id != -1 && dev->id > bus->info->max_target) { |
1ecda02b | 145 | error_report("bad scsi device id: %d", dev->id); |
d52affa7 GH |
146 | goto err; |
147 | } | |
d3d250bd PB |
148 | if (dev->lun != -1 && dev->lun > bus->info->max_lun) { |
149 | error_report("bad scsi device lun: %d", dev->lun); | |
150 | goto err; | |
151 | } | |
d52affa7 | 152 | |
7e0380b9 PB |
153 | if (dev->id == -1) { |
154 | int id = -1; | |
155 | if (dev->lun == -1) { | |
156 | dev->lun = 0; | |
157 | } | |
158 | do { | |
0d3545e7 | 159 | d = scsi_device_find(bus, dev->channel, ++id, dev->lun); |
d3d250bd PB |
160 | } while (d && d->lun == dev->lun && id < bus->info->max_target); |
161 | if (d && d->lun == dev->lun) { | |
7e0380b9 PB |
162 | error_report("no free target"); |
163 | goto err; | |
164 | } | |
165 | dev->id = id; | |
166 | } else if (dev->lun == -1) { | |
167 | int lun = -1; | |
168 | do { | |
0d3545e7 | 169 | d = scsi_device_find(bus, dev->channel, dev->id, ++lun); |
7e0380b9 | 170 | } while (d && d->lun == lun && lun < bus->info->max_lun); |
d3d250bd | 171 | if (d && d->lun == lun) { |
7e0380b9 PB |
172 | error_report("no free lun"); |
173 | goto err; | |
174 | } | |
175 | dev->lun = lun; | |
176 | } else { | |
0d3545e7 | 177 | d = scsi_device_find(bus, dev->channel, dev->id, dev->lun); |
d3d250bd PB |
178 | assert(d); |
179 | if (d->lun == dev->lun && dev != d) { | |
02a5c4c9 | 180 | object_unparent(OBJECT(d)); |
7e0380b9 | 181 | } |
d52affa7 | 182 | } |
d52affa7 | 183 | |
9af99d98 | 184 | QTAILQ_INIT(&dev->requests); |
b9eea3e6 | 185 | rc = scsi_device_init(dev); |
71544d30 PB |
186 | if (rc == 0) { |
187 | dev->vmsentry = qemu_add_vm_change_state_handler(scsi_dma_restart_cb, | |
188 | dev); | |
189 | } | |
d52affa7 | 190 | |
350e6e41 CM |
191 | if (bus->info->hotplug) { |
192 | bus->info->hotplug(bus, dev); | |
193 | } | |
194 | ||
d52affa7 | 195 | err: |
01985dcf GH |
196 | return rc; |
197 | } | |
198 | ||
199 | static int scsi_qdev_exit(DeviceState *qdev) | |
200 | { | |
b9eea3e6 | 201 | SCSIDevice *dev = SCSI_DEVICE(qdev); |
01985dcf | 202 | |
71544d30 PB |
203 | if (dev->vmsentry) { |
204 | qemu_del_vm_change_state_handler(dev->vmsentry); | |
205 | } | |
b9eea3e6 | 206 | scsi_device_destroy(dev); |
01985dcf | 207 | return 0; |
d52affa7 GH |
208 | } |
209 | ||
d52affa7 | 210 | /* handle legacy '-drive if=scsi,...' cmd line args */ |
2d1fd261 | 211 | SCSIDevice *scsi_bus_legacy_add_drive(SCSIBus *bus, BlockDriverState *bdrv, |
76534da7 | 212 | int unit, bool removable, int bootindex, |
caad4eb3 | 213 | const char *serial, Error **errp) |
d52affa7 GH |
214 | { |
215 | const char *driver; | |
216 | DeviceState *dev; | |
caad4eb3 | 217 | Error *err = NULL; |
d52affa7 | 218 | |
f8b6cc00 | 219 | driver = bdrv_is_sg(bdrv) ? "scsi-generic" : "scsi-disk"; |
d52affa7 GH |
220 | dev = qdev_create(&bus->qbus, driver); |
221 | qdev_prop_set_uint32(dev, "scsi-id", unit); | |
ce4e7e46 PB |
222 | if (bootindex >= 0) { |
223 | qdev_prop_set_int32(dev, "bootindex", bootindex); | |
224 | } | |
89bfe000 | 225 | if (object_property_find(OBJECT(dev), "removable", NULL)) { |
2d1fd261 SH |
226 | qdev_prop_set_bit(dev, "removable", removable); |
227 | } | |
c24e7517 | 228 | if (serial && object_property_find(OBJECT(dev), "serial", NULL)) { |
76534da7 KW |
229 | qdev_prop_set_string(dev, "serial", serial); |
230 | } | |
18846dee | 231 | if (qdev_prop_set_drive(dev, "drive", bdrv) < 0) { |
caad4eb3 | 232 | error_setg(errp, "Setting drive property failed"); |
02a5c4c9 | 233 | object_unparent(OBJECT(dev)); |
18846dee MA |
234 | return NULL; |
235 | } | |
caad4eb3 AF |
236 | object_property_set_bool(OBJECT(dev), true, "realized", &err); |
237 | if (err != NULL) { | |
238 | error_propagate(errp, err); | |
02a5c4c9 | 239 | object_unparent(OBJECT(dev)); |
33e66b86 | 240 | return NULL; |
caad4eb3 | 241 | } |
b9eea3e6 | 242 | return SCSI_DEVICE(dev); |
d52affa7 GH |
243 | } |
244 | ||
caad4eb3 | 245 | void scsi_bus_legacy_handle_cmdline(SCSIBus *bus, Error **errp) |
d52affa7 | 246 | { |
42e766a2 | 247 | Location loc; |
d52affa7 | 248 | DriveInfo *dinfo; |
caad4eb3 AF |
249 | int unit; |
250 | Error *err = NULL; | |
d52affa7 | 251 | |
42e766a2 | 252 | loc_push_none(&loc); |
d3d250bd | 253 | for (unit = 0; unit <= bus->info->max_target; unit++) { |
d52affa7 GH |
254 | dinfo = drive_get(IF_SCSI, bus->busnr, unit); |
255 | if (dinfo == NULL) { | |
256 | continue; | |
257 | } | |
42e766a2 | 258 | qemu_opts_loc_restore(dinfo->opts); |
caad4eb3 AF |
259 | scsi_bus_legacy_add_drive(bus, dinfo->bdrv, unit, false, -1, NULL, |
260 | &err); | |
261 | if (err != NULL) { | |
262 | error_propagate(errp, err); | |
fa66b909 MA |
263 | break; |
264 | } | |
d52affa7 | 265 | } |
42e766a2 | 266 | loc_pop(&loc); |
d52affa7 | 267 | } |
89b08ae1 | 268 | |
12a08998 PB |
269 | static int32_t scsi_invalid_field(SCSIRequest *req, uint8_t *buf) |
270 | { | |
271 | scsi_req_build_sense(req, SENSE_CODE(INVALID_FIELD)); | |
272 | scsi_req_complete(req, CHECK_CONDITION); | |
273 | return 0; | |
274 | } | |
275 | ||
276 | static const struct SCSIReqOps reqops_invalid_field = { | |
277 | .size = sizeof(SCSIRequest), | |
278 | .send_command = scsi_invalid_field | |
279 | }; | |
280 | ||
afa46c46 PB |
281 | /* SCSIReqOps implementation for invalid commands. */ |
282 | ||
283 | static int32_t scsi_invalid_command(SCSIRequest *req, uint8_t *buf) | |
284 | { | |
285 | scsi_req_build_sense(req, SENSE_CODE(INVALID_OPCODE)); | |
286 | scsi_req_complete(req, CHECK_CONDITION); | |
287 | return 0; | |
288 | } | |
289 | ||
adcf2754 | 290 | static const struct SCSIReqOps reqops_invalid_opcode = { |
afa46c46 PB |
291 | .size = sizeof(SCSIRequest), |
292 | .send_command = scsi_invalid_command | |
293 | }; | |
294 | ||
6dc06f08 PB |
295 | /* SCSIReqOps implementation for unit attention conditions. */ |
296 | ||
297 | static int32_t scsi_unit_attention(SCSIRequest *req, uint8_t *buf) | |
298 | { | |
0bf8264e | 299 | if (req->dev->unit_attention.key == UNIT_ATTENTION) { |
6dc06f08 PB |
300 | scsi_req_build_sense(req, req->dev->unit_attention); |
301 | } else if (req->bus->unit_attention.key == UNIT_ATTENTION) { | |
302 | scsi_req_build_sense(req, req->bus->unit_attention); | |
303 | } | |
304 | scsi_req_complete(req, CHECK_CONDITION); | |
305 | return 0; | |
306 | } | |
307 | ||
adcf2754 | 308 | static const struct SCSIReqOps reqops_unit_attention = { |
6dc06f08 PB |
309 | .size = sizeof(SCSIRequest), |
310 | .send_command = scsi_unit_attention | |
311 | }; | |
312 | ||
fdaef069 PB |
313 | /* SCSIReqOps implementation for REPORT LUNS and for commands sent to |
314 | an invalid LUN. */ | |
315 | ||
316 | typedef struct SCSITargetReq SCSITargetReq; | |
317 | ||
318 | struct SCSITargetReq { | |
319 | SCSIRequest req; | |
320 | int len; | |
84642435 AH |
321 | uint8_t *buf; |
322 | int buf_len; | |
fdaef069 PB |
323 | }; |
324 | ||
325 | static void store_lun(uint8_t *outbuf, int lun) | |
326 | { | |
327 | if (lun < 256) { | |
328 | outbuf[1] = lun; | |
329 | return; | |
330 | } | |
331 | outbuf[1] = (lun & 255); | |
332 | outbuf[0] = (lun >> 8) | 0x40; | |
333 | } | |
334 | ||
335 | static bool scsi_target_emulate_report_luns(SCSITargetReq *r) | |
336 | { | |
0866aca1 | 337 | BusChild *kid; |
ba74307c | 338 | int i, len, n; |
0d3545e7 | 339 | int channel, id; |
ba74307c PB |
340 | bool found_lun0; |
341 | ||
fdaef069 PB |
342 | if (r->req.cmd.xfer < 16) { |
343 | return false; | |
344 | } | |
345 | if (r->req.cmd.buf[2] > 2) { | |
346 | return false; | |
347 | } | |
0d3545e7 | 348 | channel = r->req.dev->channel; |
ba74307c PB |
349 | id = r->req.dev->id; |
350 | found_lun0 = false; | |
351 | n = 0; | |
0866aca1 AL |
352 | QTAILQ_FOREACH(kid, &r->req.bus->qbus.children, sibling) { |
353 | DeviceState *qdev = kid->child; | |
b9eea3e6 | 354 | SCSIDevice *dev = SCSI_DEVICE(qdev); |
ba74307c | 355 | |
0d3545e7 | 356 | if (dev->channel == channel && dev->id == id) { |
ba74307c PB |
357 | if (dev->lun == 0) { |
358 | found_lun0 = true; | |
359 | } | |
360 | n += 8; | |
361 | } | |
362 | } | |
363 | if (!found_lun0) { | |
364 | n += 8; | |
365 | } | |
ba74307c | 366 | |
84642435 AH |
367 | scsi_target_alloc_buf(&r->req, n + 8); |
368 | ||
369 | len = MIN(n + 8, r->req.cmd.xfer & ~7); | |
fdaef069 | 370 | memset(r->buf, 0, len); |
84642435 | 371 | stl_be_p(&r->buf[0], n); |
ba74307c | 372 | i = found_lun0 ? 8 : 16; |
0866aca1 AL |
373 | QTAILQ_FOREACH(kid, &r->req.bus->qbus.children, sibling) { |
374 | DeviceState *qdev = kid->child; | |
b9eea3e6 | 375 | SCSIDevice *dev = SCSI_DEVICE(qdev); |
ba74307c | 376 | |
0d3545e7 | 377 | if (dev->channel == channel && dev->id == id) { |
ba74307c PB |
378 | store_lun(&r->buf[i], dev->lun); |
379 | i += 8; | |
380 | } | |
fdaef069 | 381 | } |
ba74307c PB |
382 | assert(i == n + 8); |
383 | r->len = len; | |
fdaef069 PB |
384 | return true; |
385 | } | |
386 | ||
387 | static bool scsi_target_emulate_inquiry(SCSITargetReq *r) | |
388 | { | |
389 | assert(r->req.dev->lun != r->req.lun); | |
84642435 AH |
390 | |
391 | scsi_target_alloc_buf(&r->req, SCSI_INQUIRY_LEN); | |
392 | ||
fdaef069 PB |
393 | if (r->req.cmd.buf[1] & 0x2) { |
394 | /* Command support data - optional, not implemented */ | |
395 | return false; | |
396 | } | |
397 | ||
398 | if (r->req.cmd.buf[1] & 0x1) { | |
399 | /* Vital product data */ | |
400 | uint8_t page_code = r->req.cmd.buf[2]; | |
fdaef069 PB |
401 | r->buf[r->len++] = page_code ; /* this page */ |
402 | r->buf[r->len++] = 0x00; | |
403 | ||
404 | switch (page_code) { | |
405 | case 0x00: /* Supported page codes, mandatory */ | |
406 | { | |
407 | int pages; | |
408 | pages = r->len++; | |
409 | r->buf[r->len++] = 0x00; /* list of supported pages (this page) */ | |
410 | r->buf[pages] = r->len - pages - 1; /* number of pages */ | |
411 | break; | |
412 | } | |
413 | default: | |
414 | return false; | |
415 | } | |
416 | /* done with EVPD */ | |
84642435 | 417 | assert(r->len < r->buf_len); |
fdaef069 PB |
418 | r->len = MIN(r->req.cmd.xfer, r->len); |
419 | return true; | |
420 | } | |
421 | ||
422 | /* Standard INQUIRY data */ | |
423 | if (r->req.cmd.buf[2] != 0) { | |
424 | return false; | |
425 | } | |
426 | ||
427 | /* PAGE CODE == 0 */ | |
84642435 | 428 | r->len = MIN(r->req.cmd.xfer, SCSI_INQUIRY_LEN); |
fdaef069 PB |
429 | memset(r->buf, 0, r->len); |
430 | if (r->req.lun != 0) { | |
431 | r->buf[0] = TYPE_NO_LUN; | |
432 | } else { | |
433 | r->buf[0] = TYPE_NOT_PRESENT | TYPE_INACTIVE; | |
434 | r->buf[2] = 5; /* Version */ | |
435 | r->buf[3] = 2 | 0x10; /* HiSup, response data format */ | |
436 | r->buf[4] = r->len - 5; /* Additional Length = (Len - 1) - 4 */ | |
afd4030c | 437 | r->buf[7] = 0x10 | (r->req.bus->info->tcq ? 0x02 : 0); /* Sync, TCQ. */ |
fdaef069 PB |
438 | memcpy(&r->buf[8], "QEMU ", 8); |
439 | memcpy(&r->buf[16], "QEMU TARGET ", 16); | |
93bfef4c | 440 | pstrcpy((char *) &r->buf[32], 4, qemu_get_version()); |
fdaef069 PB |
441 | } |
442 | return true; | |
443 | } | |
444 | ||
445 | static int32_t scsi_target_send_command(SCSIRequest *req, uint8_t *buf) | |
446 | { | |
447 | SCSITargetReq *r = DO_UPCAST(SCSITargetReq, req, req); | |
448 | ||
449 | switch (buf[0]) { | |
450 | case REPORT_LUNS: | |
451 | if (!scsi_target_emulate_report_luns(r)) { | |
452 | goto illegal_request; | |
453 | } | |
454 | break; | |
455 | case INQUIRY: | |
456 | if (!scsi_target_emulate_inquiry(r)) { | |
457 | goto illegal_request; | |
458 | } | |
459 | break; | |
739df215 | 460 | case REQUEST_SENSE: |
84642435 | 461 | scsi_target_alloc_buf(&r->req, SCSI_SENSE_LEN); |
8b2a04ee | 462 | r->len = scsi_device_get_sense(r->req.dev, r->buf, |
84642435 | 463 | MIN(req->cmd.xfer, r->buf_len), |
739df215 | 464 | (req->cmd.buf[1] & 1) == 0); |
3653d8c4 | 465 | if (r->req.dev->sense_is_ua) { |
b9eea3e6 | 466 | scsi_device_unit_attention_reported(req->dev); |
3653d8c4 PB |
467 | r->req.dev->sense_len = 0; |
468 | r->req.dev->sense_is_ua = false; | |
469 | } | |
739df215 | 470 | break; |
1cb27d92 PB |
471 | case TEST_UNIT_READY: |
472 | break; | |
fdaef069 PB |
473 | default: |
474 | scsi_req_build_sense(req, SENSE_CODE(LUN_NOT_SUPPORTED)); | |
475 | scsi_req_complete(req, CHECK_CONDITION); | |
476 | return 0; | |
477 | illegal_request: | |
478 | scsi_req_build_sense(req, SENSE_CODE(INVALID_FIELD)); | |
479 | scsi_req_complete(req, CHECK_CONDITION); | |
480 | return 0; | |
481 | } | |
482 | ||
483 | if (!r->len) { | |
484 | scsi_req_complete(req, GOOD); | |
485 | } | |
486 | return r->len; | |
487 | } | |
488 | ||
489 | static void scsi_target_read_data(SCSIRequest *req) | |
490 | { | |
491 | SCSITargetReq *r = DO_UPCAST(SCSITargetReq, req, req); | |
492 | uint32_t n; | |
493 | ||
494 | n = r->len; | |
495 | if (n > 0) { | |
496 | r->len = 0; | |
497 | scsi_req_data(&r->req, n); | |
498 | } else { | |
499 | scsi_req_complete(&r->req, GOOD); | |
500 | } | |
501 | } | |
502 | ||
503 | static uint8_t *scsi_target_get_buf(SCSIRequest *req) | |
504 | { | |
505 | SCSITargetReq *r = DO_UPCAST(SCSITargetReq, req, req); | |
506 | ||
507 | return r->buf; | |
508 | } | |
509 | ||
84642435 AH |
510 | static uint8_t *scsi_target_alloc_buf(SCSIRequest *req, size_t len) |
511 | { | |
512 | SCSITargetReq *r = DO_UPCAST(SCSITargetReq, req, req); | |
513 | ||
514 | r->buf = g_malloc(len); | |
515 | r->buf_len = len; | |
516 | ||
517 | return r->buf; | |
518 | } | |
519 | ||
520 | static void scsi_target_free_buf(SCSIRequest *req) | |
521 | { | |
522 | SCSITargetReq *r = DO_UPCAST(SCSITargetReq, req, req); | |
523 | ||
524 | g_free(r->buf); | |
525 | } | |
526 | ||
adcf2754 | 527 | static const struct SCSIReqOps reqops_target_command = { |
fdaef069 PB |
528 | .size = sizeof(SCSITargetReq), |
529 | .send_command = scsi_target_send_command, | |
530 | .read_data = scsi_target_read_data, | |
531 | .get_buf = scsi_target_get_buf, | |
84642435 | 532 | .free_req = scsi_target_free_buf, |
fdaef069 PB |
533 | }; |
534 | ||
535 | ||
adcf2754 PB |
536 | SCSIRequest *scsi_req_alloc(const SCSIReqOps *reqops, SCSIDevice *d, |
537 | uint32_t tag, uint32_t lun, void *hba_private) | |
89b08ae1 GH |
538 | { |
539 | SCSIRequest *req; | |
cac3c384 PB |
540 | SCSIBus *bus = scsi_bus_from_device(d); |
541 | BusState *qbus = BUS(bus); | |
89b08ae1 | 542 | |
7267c094 | 543 | req = g_malloc0(reqops->size); |
5c6c0e51 | 544 | req->refcount = 1; |
cac3c384 | 545 | req->bus = bus; |
89b08ae1 GH |
546 | req->dev = d; |
547 | req->tag = tag; | |
548 | req->lun = lun; | |
c5bf71a9 | 549 | req->hba_private = hba_private; |
ed3a34a3 | 550 | req->status = -1; |
b45ef674 | 551 | req->sense_len = 0; |
8dbd4574 | 552 | req->ops = reqops; |
cac3c384 PB |
553 | object_ref(OBJECT(d)); |
554 | object_ref(OBJECT(qbus->parent)); | |
5138efec | 555 | trace_scsi_req_alloc(req->dev->id, req->lun, req->tag); |
89b08ae1 GH |
556 | return req; |
557 | } | |
558 | ||
c5bf71a9 | 559 | SCSIRequest *scsi_req_new(SCSIDevice *d, uint32_t tag, uint32_t lun, |
c39ce112 | 560 | uint8_t *buf, void *hba_private) |
43a2b339 | 561 | { |
6dc06f08 | 562 | SCSIBus *bus = DO_UPCAST(SCSIBus, qbus, d->qdev.parent_bus); |
c39ce112 | 563 | SCSIRequest *req; |
afa46c46 PB |
564 | SCSICommand cmd; |
565 | ||
566 | if (scsi_req_parse(&cmd, d, buf) != 0) { | |
567 | trace_scsi_req_parse_bad(d->id, lun, tag, buf[0]); | |
568 | req = scsi_req_alloc(&reqops_invalid_opcode, d, tag, lun, hba_private); | |
569 | } else { | |
570 | trace_scsi_req_parsed(d->id, lun, tag, buf[0], | |
571 | cmd.mode, cmd.xfer); | |
3b6ffe50 | 572 | if (cmd.lba != -1) { |
afa46c46 PB |
573 | trace_scsi_req_parsed_lba(d->id, lun, tag, buf[0], |
574 | cmd.lba); | |
575 | } | |
fdaef069 | 576 | |
12a08998 PB |
577 | if (cmd.xfer > INT32_MAX) { |
578 | req = scsi_req_alloc(&reqops_invalid_field, d, tag, lun, hba_private); | |
579 | } else if ((d->unit_attention.key == UNIT_ATTENTION || | |
580 | bus->unit_attention.key == UNIT_ATTENTION) && | |
581 | (buf[0] != INQUIRY && | |
582 | buf[0] != REPORT_LUNS && | |
583 | buf[0] != GET_CONFIGURATION && | |
584 | buf[0] != GET_EVENT_STATUS_NOTIFICATION && | |
585 | ||
586 | /* | |
587 | * If we already have a pending unit attention condition, | |
588 | * report this one before triggering another one. | |
589 | */ | |
590 | !(buf[0] == REQUEST_SENSE && d->sense_is_ua))) { | |
6dc06f08 PB |
591 | req = scsi_req_alloc(&reqops_unit_attention, d, tag, lun, |
592 | hba_private); | |
593 | } else if (lun != d->lun || | |
e5f38ff6 PB |
594 | buf[0] == REPORT_LUNS || |
595 | (buf[0] == REQUEST_SENSE && d->sense_len)) { | |
fdaef069 PB |
596 | req = scsi_req_alloc(&reqops_target_command, d, tag, lun, |
597 | hba_private); | |
598 | } else { | |
b9eea3e6 | 599 | req = scsi_device_alloc_req(d, tag, lun, buf, hba_private); |
fdaef069 | 600 | } |
afa46c46 PB |
601 | } |
602 | ||
603 | req->cmd = cmd; | |
01e95455 PB |
604 | req->resid = req->cmd.xfer; |
605 | ||
98254542 PB |
606 | switch (buf[0]) { |
607 | case INQUIRY: | |
608 | trace_scsi_inquiry(d->id, lun, tag, cmd.buf[1], cmd.buf[2]); | |
609 | break; | |
610 | case TEST_UNIT_READY: | |
611 | trace_scsi_test_unit_ready(d->id, lun, tag); | |
612 | break; | |
613 | case REPORT_LUNS: | |
614 | trace_scsi_report_luns(d->id, lun, tag); | |
615 | break; | |
616 | case REQUEST_SENSE: | |
617 | trace_scsi_request_sense(d->id, lun, tag); | |
618 | break; | |
619 | default: | |
620 | break; | |
621 | } | |
622 | ||
c39ce112 | 623 | return req; |
43a2b339 PB |
624 | } |
625 | ||
0c34459b PB |
626 | uint8_t *scsi_req_get_buf(SCSIRequest *req) |
627 | { | |
12010e7b | 628 | return req->ops->get_buf(req); |
0c34459b PB |
629 | } |
630 | ||
6dc06f08 PB |
631 | static void scsi_clear_unit_attention(SCSIRequest *req) |
632 | { | |
633 | SCSISense *ua; | |
634 | if (req->dev->unit_attention.key != UNIT_ATTENTION && | |
635 | req->bus->unit_attention.key != UNIT_ATTENTION) { | |
636 | return; | |
637 | } | |
638 | ||
639 | /* | |
640 | * If an INQUIRY command enters the enabled command state, | |
641 | * the device server shall [not] clear any unit attention condition; | |
642 | * See also MMC-6, paragraphs 6.5 and 6.6.2. | |
643 | */ | |
644 | if (req->cmd.buf[0] == INQUIRY || | |
645 | req->cmd.buf[0] == GET_CONFIGURATION || | |
646 | req->cmd.buf[0] == GET_EVENT_STATUS_NOTIFICATION) { | |
647 | return; | |
648 | } | |
649 | ||
650 | if (req->dev->unit_attention.key == UNIT_ATTENTION) { | |
651 | ua = &req->dev->unit_attention; | |
652 | } else { | |
653 | ua = &req->bus->unit_attention; | |
654 | } | |
655 | ||
656 | /* | |
657 | * If a REPORT LUNS command enters the enabled command state, [...] | |
658 | * the device server shall clear any pending unit attention condition | |
659 | * with an additional sense code of REPORTED LUNS DATA HAS CHANGED. | |
660 | */ | |
661 | if (req->cmd.buf[0] == REPORT_LUNS && | |
662 | !(ua->asc == SENSE_CODE(REPORTED_LUNS_CHANGED).asc && | |
663 | ua->ascq == SENSE_CODE(REPORTED_LUNS_CHANGED).ascq)) { | |
664 | return; | |
665 | } | |
666 | ||
667 | *ua = SENSE_CODE(NO_SENSE); | |
668 | } | |
669 | ||
74382217 HR |
670 | int scsi_req_get_sense(SCSIRequest *req, uint8_t *buf, int len) |
671 | { | |
6dc06f08 PB |
672 | int ret; |
673 | ||
b45ef674 PB |
674 | assert(len >= 14); |
675 | if (!req->sense_len) { | |
74382217 HR |
676 | return 0; |
677 | } | |
6dc06f08 PB |
678 | |
679 | ret = scsi_build_sense(req->sense, req->sense_len, buf, len, true); | |
680 | ||
681 | /* | |
682 | * FIXME: clearing unit attention conditions upon autosense should be done | |
683 | * only if the UA_INTLCK_CTRL field in the Control mode page is set to 00b | |
684 | * (SAM-5, 5.14). | |
685 | * | |
686 | * We assume UA_INTLCK_CTRL to be 00b for HBAs that support autosense, and | |
687 | * 10b for HBAs that do not support it (do not call scsi_req_get_sense). | |
3653d8c4 | 688 | * Here we handle unit attention clearing for UA_INTLCK_CTRL == 00b. |
6dc06f08 | 689 | */ |
3653d8c4 | 690 | if (req->dev->sense_is_ua) { |
b9eea3e6 | 691 | scsi_device_unit_attention_reported(req->dev); |
3653d8c4 PB |
692 | req->dev->sense_len = 0; |
693 | req->dev->sense_is_ua = false; | |
694 | } | |
6dc06f08 | 695 | return ret; |
b45ef674 PB |
696 | } |
697 | ||
698 | int scsi_device_get_sense(SCSIDevice *dev, uint8_t *buf, int len, bool fixed) | |
699 | { | |
700 | return scsi_build_sense(dev->sense, dev->sense_len, buf, len, fixed); | |
701 | } | |
702 | ||
703 | void scsi_req_build_sense(SCSIRequest *req, SCSISense sense) | |
704 | { | |
705 | trace_scsi_req_build_sense(req->dev->id, req->lun, req->tag, | |
706 | sense.key, sense.asc, sense.ascq); | |
707 | memset(req->sense, 0, 18); | |
77e4743c | 708 | req->sense[0] = 0x70; |
b45ef674 | 709 | req->sense[2] = sense.key; |
eae31cb9 | 710 | req->sense[7] = 10; |
b45ef674 PB |
711 | req->sense[12] = sense.asc; |
712 | req->sense[13] = sense.ascq; | |
713 | req->sense_len = 18; | |
74382217 HR |
714 | } |
715 | ||
63f740dd | 716 | static void scsi_req_enqueue_internal(SCSIRequest *req) |
89b08ae1 | 717 | { |
5c6c0e51 HR |
718 | assert(!req->enqueued); |
719 | scsi_req_ref(req); | |
3d5aba97 PB |
720 | if (req->bus->info->get_sg_list) { |
721 | req->sg = req->bus->info->get_sg_list(req); | |
722 | } else { | |
723 | req->sg = NULL; | |
724 | } | |
5c6c0e51 HR |
725 | req->enqueued = true; |
726 | QTAILQ_INSERT_TAIL(&req->dev->requests, req, next); | |
63f740dd | 727 | } |
fc4f0754 | 728 | |
63f740dd PB |
729 | int32_t scsi_req_enqueue(SCSIRequest *req) |
730 | { | |
731 | int32_t rc; | |
732 | ||
733 | assert(!req->retry); | |
734 | scsi_req_enqueue_internal(req); | |
fc4f0754 | 735 | scsi_req_ref(req); |
c39ce112 | 736 | rc = req->ops->send_command(req, req->cmd.buf); |
fc4f0754 PB |
737 | scsi_req_unref(req); |
738 | return rc; | |
89b08ae1 GH |
739 | } |
740 | ||
a1f0cce2 | 741 | static void scsi_req_dequeue(SCSIRequest *req) |
e8637c90 | 742 | { |
5138efec | 743 | trace_scsi_req_dequeue(req->dev->id, req->lun, req->tag); |
71544d30 | 744 | req->retry = false; |
e8637c90 JK |
745 | if (req->enqueued) { |
746 | QTAILQ_REMOVE(&req->dev->requests, req, next); | |
747 | req->enqueued = false; | |
ad2d30f7 | 748 | scsi_req_unref(req); |
e8637c90 JK |
749 | } |
750 | } | |
751 | ||
06b86357 PB |
752 | static int scsi_get_performance_length(int num_desc, int type, int data_type) |
753 | { | |
754 | /* MMC-6, paragraph 6.7. */ | |
755 | switch (type) { | |
756 | case 0: | |
757 | if ((data_type & 3) == 0) { | |
758 | /* Each descriptor is as in Table 295 - Nominal performance. */ | |
759 | return 16 * num_desc + 8; | |
760 | } else { | |
761 | /* Each descriptor is as in Table 296 - Exceptions. */ | |
762 | return 6 * num_desc + 8; | |
763 | } | |
764 | case 1: | |
765 | case 4: | |
766 | case 5: | |
767 | return 8 * num_desc + 8; | |
768 | case 2: | |
769 | return 2048 * num_desc + 8; | |
770 | case 3: | |
771 | return 16 * num_desc + 8; | |
772 | default: | |
773 | return 8; | |
774 | } | |
775 | } | |
776 | ||
e4b65262 CM |
777 | static int ata_passthrough_xfer_unit(SCSIDevice *dev, uint8_t *buf) |
778 | { | |
779 | int byte_block = (buf[2] >> 2) & 0x1; | |
780 | int type = (buf[2] >> 4) & 0x1; | |
781 | int xfer_unit; | |
782 | ||
783 | if (byte_block) { | |
784 | if (type) { | |
785 | xfer_unit = dev->blocksize; | |
786 | } else { | |
787 | xfer_unit = 512; | |
788 | } | |
789 | } else { | |
790 | xfer_unit = 1; | |
791 | } | |
792 | ||
793 | return xfer_unit; | |
794 | } | |
795 | ||
796 | static int ata_passthrough_12_xfer_size(SCSIDevice *dev, uint8_t *buf) | |
797 | { | |
798 | int length = buf[2] & 0x3; | |
799 | int xfer; | |
800 | int unit = ata_passthrough_xfer_unit(dev, buf); | |
801 | ||
802 | switch (length) { | |
803 | case 0: | |
804 | case 3: /* USB-specific. */ | |
d83c951c | 805 | default: |
e4b65262 CM |
806 | xfer = 0; |
807 | break; | |
808 | case 1: | |
809 | xfer = buf[3]; | |
810 | break; | |
811 | case 2: | |
812 | xfer = buf[4]; | |
813 | break; | |
814 | } | |
815 | ||
816 | return xfer * unit; | |
817 | } | |
818 | ||
819 | static int ata_passthrough_16_xfer_size(SCSIDevice *dev, uint8_t *buf) | |
820 | { | |
821 | int extend = buf[1] & 0x1; | |
822 | int length = buf[2] & 0x3; | |
823 | int xfer; | |
824 | int unit = ata_passthrough_xfer_unit(dev, buf); | |
825 | ||
826 | switch (length) { | |
827 | case 0: | |
828 | case 3: /* USB-specific. */ | |
d83c951c | 829 | default: |
e4b65262 CM |
830 | xfer = 0; |
831 | break; | |
832 | case 1: | |
833 | xfer = buf[4]; | |
834 | xfer |= (extend ? buf[3] << 8 : 0); | |
835 | break; | |
836 | case 2: | |
837 | xfer = buf[6]; | |
838 | xfer |= (extend ? buf[5] << 8 : 0); | |
839 | break; | |
840 | } | |
841 | ||
842 | return xfer * unit; | |
843 | } | |
844 | ||
bb729f75 PB |
845 | uint32_t scsi_data_cdb_length(uint8_t *buf) |
846 | { | |
847 | if ((buf[0] >> 5) == 0 && buf[4] == 0) { | |
848 | return 256; | |
849 | } else { | |
850 | return scsi_cdb_length(buf); | |
851 | } | |
852 | } | |
853 | ||
854 | uint32_t scsi_cdb_length(uint8_t *buf) | |
2ec749cb | 855 | { |
2599aece | 856 | switch (buf[0] >> 5) { |
2ec749cb | 857 | case 0: |
bb729f75 | 858 | return buf[4]; |
2ec749cb GH |
859 | break; |
860 | case 1: | |
861 | case 2: | |
bb729f75 | 862 | return lduw_be_p(&buf[7]); |
2ec749cb GH |
863 | break; |
864 | case 4: | |
bb729f75 | 865 | return ldl_be_p(&buf[10]) & 0xffffffffULL; |
2ec749cb GH |
866 | break; |
867 | case 5: | |
bb729f75 | 868 | return ldl_be_p(&buf[6]) & 0xffffffffULL; |
2ec749cb GH |
869 | break; |
870 | default: | |
871 | return -1; | |
872 | } | |
bb729f75 | 873 | } |
2ec749cb | 874 | |
bb729f75 PB |
875 | static int scsi_req_length(SCSICommand *cmd, SCSIDevice *dev, uint8_t *buf) |
876 | { | |
877 | cmd->xfer = scsi_cdb_length(buf); | |
2599aece | 878 | switch (buf[0]) { |
2ec749cb | 879 | case TEST_UNIT_READY: |
5e30a07d | 880 | case REWIND: |
2ec749cb | 881 | case START_STOP: |
00a01ad4 | 882 | case SET_CAPACITY: |
2ec749cb | 883 | case WRITE_FILEMARKS: |
06b86357 | 884 | case WRITE_FILEMARKS_16: |
2ec749cb | 885 | case SPACE: |
a5e3d9ef BK |
886 | case RESERVE: |
887 | case RELEASE: | |
2ec749cb GH |
888 | case ERASE: |
889 | case ALLOW_MEDIUM_REMOVAL: | |
2ec749cb GH |
890 | case SEEK_10: |
891 | case SYNCHRONIZE_CACHE: | |
06b86357 PB |
892 | case SYNCHRONIZE_CACHE_16: |
893 | case LOCATE_16: | |
2ec749cb | 894 | case LOCK_UNLOCK_CACHE: |
2ec749cb GH |
895 | case SET_CD_SPEED: |
896 | case SET_LIMITS: | |
5e30a07d | 897 | case WRITE_LONG_10: |
2ec749cb | 898 | case UPDATE_BLOCK: |
06b86357 PB |
899 | case RESERVE_TRACK: |
900 | case SET_READ_AHEAD: | |
901 | case PRE_FETCH: | |
902 | case PRE_FETCH_16: | |
903 | case ALLOW_OVERWRITE: | |
2599aece | 904 | cmd->xfer = 0; |
2ec749cb | 905 | break; |
d12ad44c PB |
906 | case VERIFY_10: |
907 | case VERIFY_12: | |
908 | case VERIFY_16: | |
909 | if ((buf[1] & 2) == 0) { | |
910 | cmd->xfer = 0; | |
7ef8cf9a | 911 | } else if ((buf[1] & 4) != 0) { |
d12ad44c PB |
912 | cmd->xfer = 1; |
913 | } | |
914 | cmd->xfer *= dev->blocksize; | |
915 | break; | |
2ec749cb GH |
916 | case MODE_SENSE: |
917 | break; | |
5e30a07d | 918 | case WRITE_SAME_10: |
a5ee9085 PB |
919 | case WRITE_SAME_16: |
920 | cmd->xfer = dev->blocksize; | |
2ec749cb | 921 | break; |
5e30a07d | 922 | case READ_CAPACITY_10: |
2599aece | 923 | cmd->xfer = 8; |
2ec749cb GH |
924 | break; |
925 | case READ_BLOCK_LIMITS: | |
2599aece | 926 | cmd->xfer = 6; |
2ec749cb | 927 | break; |
2ec749cb | 928 | case SEND_VOLUME_TAG: |
06b86357 PB |
929 | /* GPCMD_SET_STREAMING from multimedia commands. */ |
930 | if (dev->type == TYPE_ROM) { | |
931 | cmd->xfer = buf[10] | (buf[9] << 8); | |
932 | } else { | |
933 | cmd->xfer = buf[9] | (buf[8] << 8); | |
934 | } | |
2ec749cb | 935 | break; |
f62d0594 PB |
936 | case WRITE_6: |
937 | /* length 0 means 256 blocks */ | |
938 | if (cmd->xfer == 0) { | |
939 | cmd->xfer = 256; | |
940 | } | |
c4ce4c4b | 941 | /* fall through */ |
2ec749cb | 942 | case WRITE_10: |
5e30a07d | 943 | case WRITE_VERIFY_10: |
2ec749cb GH |
944 | case WRITE_12: |
945 | case WRITE_VERIFY_12: | |
bd536cf3 GH |
946 | case WRITE_16: |
947 | case WRITE_VERIFY_16: | |
2599aece | 948 | cmd->xfer *= dev->blocksize; |
2ec749cb | 949 | break; |
2ec749cb GH |
950 | case READ_6: |
951 | case READ_REVERSE: | |
f62d0594 PB |
952 | /* length 0 means 256 blocks */ |
953 | if (cmd->xfer == 0) { | |
954 | cmd->xfer = 256; | |
955 | } | |
c4ce4c4b | 956 | /* fall through */ |
f62d0594 | 957 | case READ_10: |
2ec749cb GH |
958 | case RECOVER_BUFFERED_DATA: |
959 | case READ_12: | |
bd536cf3 | 960 | case READ_16: |
2599aece | 961 | cmd->xfer *= dev->blocksize; |
2ec749cb | 962 | break; |
06b86357 PB |
963 | case FORMAT_UNIT: |
964 | /* MMC mandates the parameter list to be 12-bytes long. Parameters | |
965 | * for block devices are restricted to the header right now. */ | |
966 | if (dev->type == TYPE_ROM && (buf[1] & 16)) { | |
967 | cmd->xfer = 12; | |
968 | } else { | |
969 | cmd->xfer = (buf[1] & 16) == 0 ? 0 : (buf[1] & 32 ? 8 : 4); | |
970 | } | |
971 | break; | |
2ec749cb | 972 | case INQUIRY: |
06b86357 PB |
973 | case RECEIVE_DIAGNOSTIC: |
974 | case SEND_DIAGNOSTIC: | |
2599aece | 975 | cmd->xfer = buf[4] | (buf[3] << 8); |
2ec749cb | 976 | break; |
06b86357 PB |
977 | case READ_CD: |
978 | case READ_BUFFER: | |
979 | case WRITE_BUFFER: | |
980 | case SEND_CUE_SHEET: | |
981 | cmd->xfer = buf[8] | (buf[7] << 8) | (buf[6] << 16); | |
982 | break; | |
983 | case PERSISTENT_RESERVE_OUT: | |
984 | cmd->xfer = ldl_be_p(&buf[5]) & 0xffffffffULL; | |
985 | break; | |
986 | case ERASE_12: | |
987 | if (dev->type == TYPE_ROM) { | |
988 | /* MMC command GET PERFORMANCE. */ | |
989 | cmd->xfer = scsi_get_performance_length(buf[9] | (buf[8] << 8), | |
990 | buf[10], buf[1] & 0x1f); | |
991 | } | |
992 | break; | |
993 | case MECHANISM_STATUS: | |
994 | case READ_DVD_STRUCTURE: | |
995 | case SEND_DVD_STRUCTURE: | |
c7126d5b NB |
996 | case MAINTENANCE_OUT: |
997 | case MAINTENANCE_IN: | |
2599aece | 998 | if (dev->type == TYPE_ROM) { |
c7126d5b | 999 | /* GPCMD_REPORT_KEY and GPCMD_SEND_KEY from multi media commands */ |
2599aece | 1000 | cmd->xfer = buf[9] | (buf[8] << 8); |
c7126d5b NB |
1001 | } |
1002 | break; | |
e4b65262 CM |
1003 | case ATA_PASSTHROUGH_12: |
1004 | if (dev->type == TYPE_ROM) { | |
1005 | /* BLANK command of MMC */ | |
1006 | cmd->xfer = 0; | |
1007 | } else { | |
1008 | cmd->xfer = ata_passthrough_12_xfer_size(dev, buf); | |
1009 | } | |
1010 | break; | |
1011 | case ATA_PASSTHROUGH_16: | |
1012 | cmd->xfer = ata_passthrough_16_xfer_size(dev, buf); | |
1013 | break; | |
2ec749cb GH |
1014 | } |
1015 | return 0; | |
1016 | } | |
1017 | ||
2599aece | 1018 | static int scsi_req_stream_length(SCSICommand *cmd, SCSIDevice *dev, uint8_t *buf) |
2ec749cb | 1019 | { |
2599aece | 1020 | switch (buf[0]) { |
2ec749cb | 1021 | /* stream commands */ |
06b86357 PB |
1022 | case ERASE_12: |
1023 | case ERASE_16: | |
1024 | cmd->xfer = 0; | |
1025 | break; | |
2ec749cb GH |
1026 | case READ_6: |
1027 | case READ_REVERSE: | |
1028 | case RECOVER_BUFFERED_DATA: | |
1029 | case WRITE_6: | |
2599aece PB |
1030 | cmd->xfer = buf[4] | (buf[3] << 8) | (buf[2] << 16); |
1031 | if (buf[1] & 0x01) { /* fixed */ | |
1032 | cmd->xfer *= dev->blocksize; | |
1033 | } | |
2ec749cb | 1034 | break; |
065c2599 PB |
1035 | case READ_16: |
1036 | case READ_REVERSE_16: | |
1037 | case VERIFY_16: | |
1038 | case WRITE_16: | |
065c2599 PB |
1039 | cmd->xfer = buf[14] | (buf[13] << 8) | (buf[12] << 16); |
1040 | if (buf[1] & 0x01) { /* fixed */ | |
1041 | cmd->xfer *= dev->blocksize; | |
1042 | } | |
1043 | break; | |
2ec749cb | 1044 | case REWIND: |
15e58a21 | 1045 | case LOAD_UNLOAD: |
2599aece | 1046 | cmd->xfer = 0; |
2ec749cb | 1047 | break; |
06b86357 PB |
1048 | case SPACE_16: |
1049 | cmd->xfer = buf[13] | (buf[12] << 8); | |
1050 | break; | |
1051 | case READ_POSITION: | |
9ce1bb2d CH |
1052 | switch (buf[1] & 0x1f) /* operation code */ { |
1053 | case SHORT_FORM_BLOCK_ID: | |
1054 | case SHORT_FORM_VENDOR_SPECIFIC: | |
1055 | cmd->xfer = 20; | |
1056 | break; | |
1057 | case LONG_FORM: | |
1058 | cmd->xfer = 32; | |
1059 | break; | |
1060 | case EXTENDED_FORM: | |
1061 | cmd->xfer = buf[8] | (buf[7] << 8); | |
1062 | break; | |
1063 | default: | |
1064 | return -1; | |
1065 | } | |
1066 | ||
06b86357 PB |
1067 | break; |
1068 | case FORMAT_UNIT: | |
1069 | cmd->xfer = buf[4] | (buf[3] << 8); | |
1070 | break; | |
2ec749cb GH |
1071 | /* generic commands */ |
1072 | default: | |
2599aece | 1073 | return scsi_req_length(cmd, dev, buf); |
2ec749cb GH |
1074 | } |
1075 | return 0; | |
1076 | } | |
1077 | ||
40723a99 CH |
1078 | static int scsi_req_medium_changer_length(SCSICommand *cmd, SCSIDevice *dev, uint8_t *buf) |
1079 | { | |
1080 | switch (buf[0]) { | |
1081 | /* medium changer commands */ | |
1082 | case EXCHANGE_MEDIUM: | |
1083 | case INITIALIZE_ELEMENT_STATUS: | |
1084 | case INITIALIZE_ELEMENT_STATUS_WITH_RANGE: | |
1085 | case MOVE_MEDIUM: | |
1086 | case POSITION_TO_ELEMENT: | |
1087 | cmd->xfer = 0; | |
1088 | break; | |
1089 | case READ_ELEMENT_STATUS: | |
1090 | cmd->xfer = buf[9] | (buf[8] << 8) | (buf[7] << 16); | |
1091 | break; | |
1092 | ||
1093 | /* generic commands */ | |
1094 | default: | |
1095 | return scsi_req_length(cmd, dev, buf); | |
1096 | } | |
1097 | return 0; | |
1098 | } | |
1099 | ||
1100 | ||
2599aece | 1101 | static void scsi_cmd_xfer_mode(SCSICommand *cmd) |
97a06435 | 1102 | { |
a5ee9085 PB |
1103 | if (!cmd->xfer) { |
1104 | cmd->mode = SCSI_XFER_NONE; | |
1105 | return; | |
1106 | } | |
2599aece | 1107 | switch (cmd->buf[0]) { |
97a06435 GH |
1108 | case WRITE_6: |
1109 | case WRITE_10: | |
5e30a07d | 1110 | case WRITE_VERIFY_10: |
97a06435 GH |
1111 | case WRITE_12: |
1112 | case WRITE_VERIFY_12: | |
bd536cf3 GH |
1113 | case WRITE_16: |
1114 | case WRITE_VERIFY_16: | |
d12ad44c PB |
1115 | case VERIFY_10: |
1116 | case VERIFY_12: | |
1117 | case VERIFY_16: | |
97a06435 GH |
1118 | case COPY: |
1119 | case COPY_VERIFY: | |
1120 | case COMPARE: | |
1121 | case CHANGE_DEFINITION: | |
1122 | case LOG_SELECT: | |
1123 | case MODE_SELECT: | |
1124 | case MODE_SELECT_10: | |
1125 | case SEND_DIAGNOSTIC: | |
1126 | case WRITE_BUFFER: | |
1127 | case FORMAT_UNIT: | |
1128 | case REASSIGN_BLOCKS: | |
97a06435 GH |
1129 | case SEARCH_EQUAL: |
1130 | case SEARCH_HIGH: | |
1131 | case SEARCH_LOW: | |
1132 | case UPDATE_BLOCK: | |
5e30a07d HR |
1133 | case WRITE_LONG_10: |
1134 | case WRITE_SAME_10: | |
a5ee9085 | 1135 | case WRITE_SAME_16: |
381b634c | 1136 | case UNMAP: |
97a06435 GH |
1137 | case SEARCH_HIGH_12: |
1138 | case SEARCH_EQUAL_12: | |
1139 | case SEARCH_LOW_12: | |
97a06435 GH |
1140 | case MEDIUM_SCAN: |
1141 | case SEND_VOLUME_TAG: | |
06b86357 PB |
1142 | case SEND_CUE_SHEET: |
1143 | case SEND_DVD_STRUCTURE: | |
01bedeba | 1144 | case PERSISTENT_RESERVE_OUT: |
c7126d5b | 1145 | case MAINTENANCE_OUT: |
2599aece | 1146 | cmd->mode = SCSI_XFER_TO_DEV; |
97a06435 | 1147 | break; |
e4b65262 CM |
1148 | case ATA_PASSTHROUGH_12: |
1149 | case ATA_PASSTHROUGH_16: | |
1150 | /* T_DIR */ | |
1151 | cmd->mode = (cmd->buf[2] & 0x8) ? | |
1152 | SCSI_XFER_FROM_DEV : SCSI_XFER_TO_DEV; | |
1153 | break; | |
97a06435 | 1154 | default: |
a5ee9085 | 1155 | cmd->mode = SCSI_XFER_FROM_DEV; |
97a06435 GH |
1156 | break; |
1157 | } | |
1158 | } | |
1159 | ||
2599aece | 1160 | static uint64_t scsi_cmd_lba(SCSICommand *cmd) |
2ec749cb | 1161 | { |
2599aece | 1162 | uint8_t *buf = cmd->buf; |
2ec749cb GH |
1163 | uint64_t lba; |
1164 | ||
1165 | switch (buf[0] >> 5) { | |
1166 | case 0: | |
bd5da232 | 1167 | lba = ldl_be_p(&buf[0]) & 0x1fffff; |
2ec749cb GH |
1168 | break; |
1169 | case 1: | |
1170 | case 2: | |
bd5da232 | 1171 | case 5: |
06b86357 | 1172 | lba = ldl_be_p(&buf[2]) & 0xffffffffULL; |
2ec749cb GH |
1173 | break; |
1174 | case 4: | |
bd5da232 | 1175 | lba = ldq_be_p(&buf[2]); |
2ec749cb GH |
1176 | break; |
1177 | default: | |
1178 | lba = -1; | |
1179 | ||
1180 | } | |
1181 | return lba; | |
1182 | } | |
1183 | ||
6a0a70b0 | 1184 | static int scsi_req_parse(SCSICommand *cmd, SCSIDevice *dev, uint8_t *buf) |
2ec749cb GH |
1185 | { |
1186 | int rc; | |
1187 | ||
28b70c9d PB |
1188 | switch (buf[0] >> 5) { |
1189 | case 0: | |
1190 | cmd->len = 6; | |
1191 | break; | |
1192 | case 1: | |
1193 | case 2: | |
1194 | cmd->len = 10; | |
1195 | break; | |
1196 | case 4: | |
1197 | cmd->len = 16; | |
1198 | break; | |
1199 | case 5: | |
1200 | cmd->len = 12; | |
1201 | break; | |
1202 | default: | |
1203 | return -1; | |
1204 | } | |
1205 | ||
40723a99 CH |
1206 | switch (dev->type) { |
1207 | case TYPE_TAPE: | |
afa46c46 | 1208 | rc = scsi_req_stream_length(cmd, dev, buf); |
40723a99 CH |
1209 | break; |
1210 | case TYPE_MEDIUM_CHANGER: | |
1211 | rc = scsi_req_medium_changer_length(cmd, dev, buf); | |
1212 | break; | |
1213 | default: | |
afa46c46 | 1214 | rc = scsi_req_length(cmd, dev, buf); |
40723a99 | 1215 | break; |
2ec749cb | 1216 | } |
40723a99 | 1217 | |
2ec749cb GH |
1218 | if (rc != 0) |
1219 | return rc; | |
1220 | ||
afa46c46 PB |
1221 | memcpy(cmd->buf, buf, cmd->len); |
1222 | scsi_cmd_xfer_mode(cmd); | |
1223 | cmd->lba = scsi_cmd_lba(cmd); | |
2ec749cb GH |
1224 | return 0; |
1225 | } | |
ed3a34a3 | 1226 | |
53200fad PB |
1227 | void scsi_device_report_change(SCSIDevice *dev, SCSISense sense) |
1228 | { | |
1229 | SCSIBus *bus = DO_UPCAST(SCSIBus, qbus, dev->qdev.parent_bus); | |
1230 | ||
1231 | scsi_device_set_ua(dev, sense); | |
1232 | if (bus->info->change) { | |
1233 | bus->info->change(bus, dev, sense); | |
1234 | } | |
1235 | } | |
1236 | ||
a1f0cce2 HR |
1237 | /* |
1238 | * Predefined sense codes | |
1239 | */ | |
1240 | ||
1241 | /* No sense data available */ | |
1242 | const struct SCSISense sense_code_NO_SENSE = { | |
1243 | .key = NO_SENSE , .asc = 0x00 , .ascq = 0x00 | |
1244 | }; | |
1245 | ||
1246 | /* LUN not ready, Manual intervention required */ | |
1247 | const struct SCSISense sense_code_LUN_NOT_READY = { | |
1248 | .key = NOT_READY, .asc = 0x04, .ascq = 0x03 | |
1249 | }; | |
1250 | ||
1251 | /* LUN not ready, Medium not present */ | |
1252 | const struct SCSISense sense_code_NO_MEDIUM = { | |
1253 | .key = NOT_READY, .asc = 0x3a, .ascq = 0x00 | |
1254 | }; | |
1255 | ||
68bb01f3 MA |
1256 | /* LUN not ready, medium removal prevented */ |
1257 | const struct SCSISense sense_code_NOT_READY_REMOVAL_PREVENTED = { | |
93161b69 | 1258 | .key = NOT_READY, .asc = 0x53, .ascq = 0x02 |
68bb01f3 MA |
1259 | }; |
1260 | ||
a1f0cce2 HR |
1261 | /* Hardware error, internal target failure */ |
1262 | const struct SCSISense sense_code_TARGET_FAILURE = { | |
1263 | .key = HARDWARE_ERROR, .asc = 0x44, .ascq = 0x00 | |
1264 | }; | |
1265 | ||
1266 | /* Illegal request, invalid command operation code */ | |
1267 | const struct SCSISense sense_code_INVALID_OPCODE = { | |
1268 | .key = ILLEGAL_REQUEST, .asc = 0x20, .ascq = 0x00 | |
1269 | }; | |
1270 | ||
1271 | /* Illegal request, LBA out of range */ | |
1272 | const struct SCSISense sense_code_LBA_OUT_OF_RANGE = { | |
1273 | .key = ILLEGAL_REQUEST, .asc = 0x21, .ascq = 0x00 | |
1274 | }; | |
1275 | ||
1276 | /* Illegal request, Invalid field in CDB */ | |
1277 | const struct SCSISense sense_code_INVALID_FIELD = { | |
1278 | .key = ILLEGAL_REQUEST, .asc = 0x24, .ascq = 0x00 | |
1279 | }; | |
1280 | ||
380feaff PB |
1281 | /* Illegal request, Invalid field in parameter list */ |
1282 | const struct SCSISense sense_code_INVALID_PARAM = { | |
1283 | .key = ILLEGAL_REQUEST, .asc = 0x26, .ascq = 0x00 | |
1284 | }; | |
1285 | ||
1286 | /* Illegal request, Parameter list length error */ | |
1287 | const struct SCSISense sense_code_INVALID_PARAM_LEN = { | |
1288 | .key = ILLEGAL_REQUEST, .asc = 0x1a, .ascq = 0x00 | |
1289 | }; | |
1290 | ||
a1f0cce2 HR |
1291 | /* Illegal request, LUN not supported */ |
1292 | const struct SCSISense sense_code_LUN_NOT_SUPPORTED = { | |
1293 | .key = ILLEGAL_REQUEST, .asc = 0x25, .ascq = 0x00 | |
1294 | }; | |
1295 | ||
a872a304 PB |
1296 | /* Illegal request, Saving parameters not supported */ |
1297 | const struct SCSISense sense_code_SAVING_PARAMS_NOT_SUPPORTED = { | |
1298 | .key = ILLEGAL_REQUEST, .asc = 0x39, .ascq = 0x00 | |
1299 | }; | |
1300 | ||
1301 | /* Illegal request, Incompatible medium installed */ | |
67cc61e4 | 1302 | const struct SCSISense sense_code_INCOMPATIBLE_FORMAT = { |
a872a304 PB |
1303 | .key = ILLEGAL_REQUEST, .asc = 0x30, .ascq = 0x00 |
1304 | }; | |
1305 | ||
68bb01f3 MA |
1306 | /* Illegal request, medium removal prevented */ |
1307 | const struct SCSISense sense_code_ILLEGAL_REQ_REMOVAL_PREVENTED = { | |
93161b69 | 1308 | .key = ILLEGAL_REQUEST, .asc = 0x53, .ascq = 0x02 |
68bb01f3 MA |
1309 | }; |
1310 | ||
9ec557bd HG |
1311 | /* Illegal request, Invalid Transfer Tag */ |
1312 | const struct SCSISense sense_code_INVALID_TAG = { | |
1313 | .key = ILLEGAL_REQUEST, .asc = 0x4b, .ascq = 0x01 | |
1314 | }; | |
1315 | ||
a1f0cce2 HR |
1316 | /* Command aborted, I/O process terminated */ |
1317 | const struct SCSISense sense_code_IO_ERROR = { | |
1318 | .key = ABORTED_COMMAND, .asc = 0x00, .ascq = 0x06 | |
1319 | }; | |
1320 | ||
1321 | /* Command aborted, I_T Nexus loss occurred */ | |
1322 | const struct SCSISense sense_code_I_T_NEXUS_LOSS = { | |
1323 | .key = ABORTED_COMMAND, .asc = 0x29, .ascq = 0x07 | |
1324 | }; | |
1325 | ||
1326 | /* Command aborted, Logical Unit failure */ | |
1327 | const struct SCSISense sense_code_LUN_FAILURE = { | |
1328 | .key = ABORTED_COMMAND, .asc = 0x3e, .ascq = 0x01 | |
1329 | }; | |
1330 | ||
9ec557bd HG |
1331 | /* Command aborted, Overlapped Commands Attempted */ |
1332 | const struct SCSISense sense_code_OVERLAPPED_COMMANDS = { | |
1333 | .key = ABORTED_COMMAND, .asc = 0x4e, .ascq = 0x00 | |
1334 | }; | |
1335 | ||
aaebacef PB |
1336 | /* Unit attention, Capacity data has changed */ |
1337 | const struct SCSISense sense_code_CAPACITY_CHANGED = { | |
1338 | .key = UNIT_ATTENTION, .asc = 0x2a, .ascq = 0x09 | |
1339 | }; | |
1340 | ||
a872a304 PB |
1341 | /* Unit attention, Power on, reset or bus device reset occurred */ |
1342 | const struct SCSISense sense_code_RESET = { | |
1343 | .key = UNIT_ATTENTION, .asc = 0x29, .ascq = 0x00 | |
1344 | }; | |
1345 | ||
8a9c16f6 PB |
1346 | /* Unit attention, No medium */ |
1347 | const struct SCSISense sense_code_UNIT_ATTENTION_NO_MEDIUM = { | |
1348 | .key = UNIT_ATTENTION, .asc = 0x3a, .ascq = 0x00 | |
1349 | }; | |
1350 | ||
a872a304 PB |
1351 | /* Unit attention, Medium may have changed */ |
1352 | const struct SCSISense sense_code_MEDIUM_CHANGED = { | |
1353 | .key = UNIT_ATTENTION, .asc = 0x28, .ascq = 0x00 | |
1354 | }; | |
1355 | ||
1356 | /* Unit attention, Reported LUNs data has changed */ | |
1357 | const struct SCSISense sense_code_REPORTED_LUNS_CHANGED = { | |
1358 | .key = UNIT_ATTENTION, .asc = 0x3f, .ascq = 0x0e | |
1359 | }; | |
1360 | ||
1361 | /* Unit attention, Device internal reset */ | |
1362 | const struct SCSISense sense_code_DEVICE_INTERNAL_RESET = { | |
1363 | .key = UNIT_ATTENTION, .asc = 0x29, .ascq = 0x04 | |
1364 | }; | |
1365 | ||
6a8a685c RS |
1366 | /* Data Protection, Write Protected */ |
1367 | const struct SCSISense sense_code_WRITE_PROTECTED = { | |
1368 | .key = DATA_PROTECT, .asc = 0x27, .ascq = 0x00 | |
1369 | }; | |
1370 | ||
703dd81a PB |
1371 | /* Data Protection, Space Allocation Failed Write Protect */ |
1372 | const struct SCSISense sense_code_SPACE_ALLOC_FAILED = { | |
1373 | .key = DATA_PROTECT, .asc = 0x27, .ascq = 0x07 | |
1374 | }; | |
1375 | ||
a1f0cce2 HR |
1376 | /* |
1377 | * scsi_build_sense | |
1378 | * | |
b45ef674 | 1379 | * Convert between fixed and descriptor sense buffers |
a1f0cce2 | 1380 | */ |
b45ef674 PB |
1381 | int scsi_build_sense(uint8_t *in_buf, int in_len, |
1382 | uint8_t *buf, int len, bool fixed) | |
a1f0cce2 | 1383 | { |
b45ef674 PB |
1384 | bool fixed_in; |
1385 | SCSISense sense; | |
a1f0cce2 HR |
1386 | if (!fixed && len < 8) { |
1387 | return 0; | |
1388 | } | |
1389 | ||
b45ef674 PB |
1390 | if (in_len == 0) { |
1391 | sense.key = NO_SENSE; | |
1392 | sense.asc = 0; | |
1393 | sense.ascq = 0; | |
1394 | } else { | |
1395 | fixed_in = (in_buf[0] & 2) == 0; | |
1396 | ||
1397 | if (fixed == fixed_in) { | |
1398 | memcpy(buf, in_buf, MIN(len, in_len)); | |
1399 | return MIN(len, in_len); | |
1400 | } | |
1401 | ||
1402 | if (fixed_in) { | |
1403 | sense.key = in_buf[2]; | |
1404 | sense.asc = in_buf[12]; | |
1405 | sense.ascq = in_buf[13]; | |
1406 | } else { | |
1407 | sense.key = in_buf[1]; | |
1408 | sense.asc = in_buf[2]; | |
1409 | sense.ascq = in_buf[3]; | |
1410 | } | |
1411 | } | |
1412 | ||
a1f0cce2 HR |
1413 | memset(buf, 0, len); |
1414 | if (fixed) { | |
1415 | /* Return fixed format sense buffer */ | |
77e4743c | 1416 | buf[0] = 0x70; |
a1f0cce2 | 1417 | buf[2] = sense.key; |
eae31cb9 | 1418 | buf[7] = 10; |
a1f0cce2 HR |
1419 | buf[12] = sense.asc; |
1420 | buf[13] = sense.ascq; | |
84642435 | 1421 | return MIN(len, SCSI_SENSE_LEN); |
a1f0cce2 HR |
1422 | } else { |
1423 | /* Return descriptor format sense buffer */ | |
1424 | buf[0] = 0x72; | |
1425 | buf[1] = sense.key; | |
1426 | buf[2] = sense.asc; | |
1427 | buf[3] = sense.ascq; | |
1428 | return 8; | |
1429 | } | |
1430 | } | |
1431 | ||
ec766865 GH |
1432 | static const char *scsi_command_name(uint8_t cmd) |
1433 | { | |
1434 | static const char *names[] = { | |
1435 | [ TEST_UNIT_READY ] = "TEST_UNIT_READY", | |
5e30a07d | 1436 | [ REWIND ] = "REWIND", |
ec766865 GH |
1437 | [ REQUEST_SENSE ] = "REQUEST_SENSE", |
1438 | [ FORMAT_UNIT ] = "FORMAT_UNIT", | |
1439 | [ READ_BLOCK_LIMITS ] = "READ_BLOCK_LIMITS", | |
40723a99 CH |
1440 | [ REASSIGN_BLOCKS ] = "REASSIGN_BLOCKS/INITIALIZE ELEMENT STATUS", |
1441 | /* LOAD_UNLOAD and INITIALIZE_ELEMENT_STATUS use the same operation code */ | |
ec766865 GH |
1442 | [ READ_6 ] = "READ_6", |
1443 | [ WRITE_6 ] = "WRITE_6", | |
00a01ad4 | 1444 | [ SET_CAPACITY ] = "SET_CAPACITY", |
ec766865 GH |
1445 | [ READ_REVERSE ] = "READ_REVERSE", |
1446 | [ WRITE_FILEMARKS ] = "WRITE_FILEMARKS", | |
1447 | [ SPACE ] = "SPACE", | |
1448 | [ INQUIRY ] = "INQUIRY", | |
1449 | [ RECOVER_BUFFERED_DATA ] = "RECOVER_BUFFERED_DATA", | |
c7126d5b NB |
1450 | [ MAINTENANCE_IN ] = "MAINTENANCE_IN", |
1451 | [ MAINTENANCE_OUT ] = "MAINTENANCE_OUT", | |
ec766865 GH |
1452 | [ MODE_SELECT ] = "MODE_SELECT", |
1453 | [ RESERVE ] = "RESERVE", | |
1454 | [ RELEASE ] = "RELEASE", | |
1455 | [ COPY ] = "COPY", | |
1456 | [ ERASE ] = "ERASE", | |
1457 | [ MODE_SENSE ] = "MODE_SENSE", | |
15e58a21 CH |
1458 | [ START_STOP ] = "START_STOP/LOAD_UNLOAD", |
1459 | /* LOAD_UNLOAD and START_STOP use the same operation code */ | |
ec766865 GH |
1460 | [ RECEIVE_DIAGNOSTIC ] = "RECEIVE_DIAGNOSTIC", |
1461 | [ SEND_DIAGNOSTIC ] = "SEND_DIAGNOSTIC", | |
1462 | [ ALLOW_MEDIUM_REMOVAL ] = "ALLOW_MEDIUM_REMOVAL", | |
5e30a07d | 1463 | [ READ_CAPACITY_10 ] = "READ_CAPACITY_10", |
ec766865 GH |
1464 | [ READ_10 ] = "READ_10", |
1465 | [ WRITE_10 ] = "WRITE_10", | |
40723a99 CH |
1466 | [ SEEK_10 ] = "SEEK_10/POSITION_TO_ELEMENT", |
1467 | /* SEEK_10 and POSITION_TO_ELEMENT use the same operation code */ | |
5e30a07d HR |
1468 | [ WRITE_VERIFY_10 ] = "WRITE_VERIFY_10", |
1469 | [ VERIFY_10 ] = "VERIFY_10", | |
ec766865 GH |
1470 | [ SEARCH_HIGH ] = "SEARCH_HIGH", |
1471 | [ SEARCH_EQUAL ] = "SEARCH_EQUAL", | |
1472 | [ SEARCH_LOW ] = "SEARCH_LOW", | |
1473 | [ SET_LIMITS ] = "SET_LIMITS", | |
00a01ad4 | 1474 | [ PRE_FETCH ] = "PRE_FETCH/READ_POSITION", |
545557d4 | 1475 | /* READ_POSITION and PRE_FETCH use the same operation code */ |
ec766865 GH |
1476 | [ SYNCHRONIZE_CACHE ] = "SYNCHRONIZE_CACHE", |
1477 | [ LOCK_UNLOCK_CACHE ] = "LOCK_UNLOCK_CACHE", | |
40723a99 CH |
1478 | [ READ_DEFECT_DATA ] = "READ_DEFECT_DATA/INITIALIZE_ELEMENT_STATUS_WITH_RANGE", |
1479 | /* READ_DEFECT_DATA and INITIALIZE_ELEMENT_STATUS_WITH_RANGE use the same operation code */ | |
ec766865 GH |
1480 | [ MEDIUM_SCAN ] = "MEDIUM_SCAN", |
1481 | [ COMPARE ] = "COMPARE", | |
1482 | [ COPY_VERIFY ] = "COPY_VERIFY", | |
1483 | [ WRITE_BUFFER ] = "WRITE_BUFFER", | |
1484 | [ READ_BUFFER ] = "READ_BUFFER", | |
1485 | [ UPDATE_BLOCK ] = "UPDATE_BLOCK", | |
5e30a07d HR |
1486 | [ READ_LONG_10 ] = "READ_LONG_10", |
1487 | [ WRITE_LONG_10 ] = "WRITE_LONG_10", | |
ec766865 | 1488 | [ CHANGE_DEFINITION ] = "CHANGE_DEFINITION", |
5e30a07d HR |
1489 | [ WRITE_SAME_10 ] = "WRITE_SAME_10", |
1490 | [ UNMAP ] = "UNMAP", | |
ec766865 | 1491 | [ READ_TOC ] = "READ_TOC", |
5e30a07d | 1492 | [ REPORT_DENSITY_SUPPORT ] = "REPORT_DENSITY_SUPPORT", |
3e46d87d | 1493 | [ SANITIZE ] = "SANITIZE", |
5e30a07d | 1494 | [ GET_CONFIGURATION ] = "GET_CONFIGURATION", |
ec766865 GH |
1495 | [ LOG_SELECT ] = "LOG_SELECT", |
1496 | [ LOG_SENSE ] = "LOG_SENSE", | |
1497 | [ MODE_SELECT_10 ] = "MODE_SELECT_10", | |
1498 | [ RESERVE_10 ] = "RESERVE_10", | |
1499 | [ RELEASE_10 ] = "RELEASE_10", | |
1500 | [ MODE_SENSE_10 ] = "MODE_SENSE_10", | |
1501 | [ PERSISTENT_RESERVE_IN ] = "PERSISTENT_RESERVE_IN", | |
1502 | [ PERSISTENT_RESERVE_OUT ] = "PERSISTENT_RESERVE_OUT", | |
5e30a07d HR |
1503 | [ WRITE_FILEMARKS_16 ] = "WRITE_FILEMARKS_16", |
1504 | [ EXTENDED_COPY ] = "EXTENDED_COPY", | |
e4b65262 | 1505 | [ ATA_PASSTHROUGH_16 ] = "ATA_PASSTHROUGH_16", |
5e30a07d HR |
1506 | [ ACCESS_CONTROL_IN ] = "ACCESS_CONTROL_IN", |
1507 | [ ACCESS_CONTROL_OUT ] = "ACCESS_CONTROL_OUT", | |
1508 | [ READ_16 ] = "READ_16", | |
1509 | [ COMPARE_AND_WRITE ] = "COMPARE_AND_WRITE", | |
1510 | [ WRITE_16 ] = "WRITE_16", | |
1511 | [ WRITE_VERIFY_16 ] = "WRITE_VERIFY_16", | |
1512 | [ VERIFY_16 ] = "VERIFY_16", | |
00a01ad4 PB |
1513 | [ PRE_FETCH_16 ] = "PRE_FETCH_16", |
1514 | [ SYNCHRONIZE_CACHE_16 ] = "SPACE_16/SYNCHRONIZE_CACHE_16", | |
1515 | /* SPACE_16 and SYNCHRONIZE_CACHE_16 use the same operation code */ | |
5e30a07d | 1516 | [ LOCATE_16 ] = "LOCATE_16", |
00a01ad4 | 1517 | [ WRITE_SAME_16 ] = "ERASE_16/WRITE_SAME_16", |
48bb9f53 | 1518 | /* ERASE_16 and WRITE_SAME_16 use the same operation code */ |
f6515262 | 1519 | [ SERVICE_ACTION_IN_16 ] = "SERVICE_ACTION_IN_16", |
5e30a07d HR |
1520 | [ WRITE_LONG_16 ] = "WRITE_LONG_16", |
1521 | [ REPORT_LUNS ] = "REPORT_LUNS", | |
e4b65262 | 1522 | [ ATA_PASSTHROUGH_12 ] = "BLANK/ATA_PASSTHROUGH_12", |
ec766865 | 1523 | [ MOVE_MEDIUM ] = "MOVE_MEDIUM", |
40723a99 | 1524 | [ EXCHANGE_MEDIUM ] = "EXCHANGE MEDIUM", |
ec766865 GH |
1525 | [ READ_12 ] = "READ_12", |
1526 | [ WRITE_12 ] = "WRITE_12", | |
00a01ad4 PB |
1527 | [ ERASE_12 ] = "ERASE_12/GET_PERFORMANCE", |
1528 | /* ERASE_12 and GET_PERFORMANCE use the same operation code */ | |
f6515262 | 1529 | [ SERVICE_ACTION_IN_12 ] = "SERVICE_ACTION_IN_12", |
ec766865 | 1530 | [ WRITE_VERIFY_12 ] = "WRITE_VERIFY_12", |
5e30a07d | 1531 | [ VERIFY_12 ] = "VERIFY_12", |
ec766865 GH |
1532 | [ SEARCH_HIGH_12 ] = "SEARCH_HIGH_12", |
1533 | [ SEARCH_EQUAL_12 ] = "SEARCH_EQUAL_12", | |
1534 | [ SEARCH_LOW_12 ] = "SEARCH_LOW_12", | |
1535 | [ READ_ELEMENT_STATUS ] = "READ_ELEMENT_STATUS", | |
00a01ad4 PB |
1536 | [ SEND_VOLUME_TAG ] = "SEND_VOLUME_TAG/SET_STREAMING", |
1537 | /* SEND_VOLUME_TAG and SET_STREAMING use the same operation code */ | |
1538 | [ READ_CD ] = "READ_CD", | |
5e30a07d | 1539 | [ READ_DEFECT_DATA_12 ] = "READ_DEFECT_DATA_12", |
00a01ad4 PB |
1540 | [ READ_DVD_STRUCTURE ] = "READ_DVD_STRUCTURE", |
1541 | [ RESERVE_TRACK ] = "RESERVE_TRACK", | |
1542 | [ SEND_CUE_SHEET ] = "SEND_CUE_SHEET", | |
1543 | [ SEND_DVD_STRUCTURE ] = "SEND_DVD_STRUCTURE", | |
ec766865 | 1544 | [ SET_CD_SPEED ] = "SET_CD_SPEED", |
00a01ad4 PB |
1545 | [ SET_READ_AHEAD ] = "SET_READ_AHEAD", |
1546 | [ ALLOW_OVERWRITE ] = "ALLOW_OVERWRITE", | |
1547 | [ MECHANISM_STATUS ] = "MECHANISM_STATUS", | |
ec766865 GH |
1548 | }; |
1549 | ||
1550 | if (cmd >= ARRAY_SIZE(names) || names[cmd] == NULL) | |
1551 | return "*UNKNOWN*"; | |
1552 | return names[cmd]; | |
1553 | } | |
1554 | ||
ad2d30f7 PB |
1555 | SCSIRequest *scsi_req_ref(SCSIRequest *req) |
1556 | { | |
8e86b93c | 1557 | assert(req->refcount > 0); |
ad2d30f7 PB |
1558 | req->refcount++; |
1559 | return req; | |
1560 | } | |
1561 | ||
1562 | void scsi_req_unref(SCSIRequest *req) | |
1563 | { | |
68bd348a | 1564 | assert(req->refcount > 0); |
ad2d30f7 | 1565 | if (--req->refcount == 0) { |
cac3c384 PB |
1566 | BusState *qbus = req->dev->qdev.parent_bus; |
1567 | SCSIBus *bus = DO_UPCAST(SCSIBus, qbus, qbus); | |
1568 | ||
8e86b93c PB |
1569 | if (bus->info->free_request && req->hba_private) { |
1570 | bus->info->free_request(bus, req->hba_private); | |
1571 | } | |
12010e7b PB |
1572 | if (req->ops->free_req) { |
1573 | req->ops->free_req(req); | |
ad2d30f7 | 1574 | } |
cac3c384 PB |
1575 | object_unref(OBJECT(req->dev)); |
1576 | object_unref(OBJECT(qbus->parent)); | |
7267c094 | 1577 | g_free(req); |
ad2d30f7 PB |
1578 | } |
1579 | } | |
1580 | ||
ad3376cc PB |
1581 | /* Tell the device that we finished processing this chunk of I/O. It |
1582 | will start the next chunk or complete the command. */ | |
1583 | void scsi_req_continue(SCSIRequest *req) | |
1584 | { | |
6f6710aa PB |
1585 | if (req->io_canceled) { |
1586 | trace_scsi_req_continue_canceled(req->dev->id, req->lun, req->tag); | |
1587 | return; | |
1588 | } | |
ad3376cc PB |
1589 | trace_scsi_req_continue(req->dev->id, req->lun, req->tag); |
1590 | if (req->cmd.mode == SCSI_XFER_TO_DEV) { | |
12010e7b | 1591 | req->ops->write_data(req); |
ad3376cc | 1592 | } else { |
12010e7b | 1593 | req->ops->read_data(req); |
ad3376cc PB |
1594 | } |
1595 | } | |
1596 | ||
ab9adc88 PB |
1597 | /* Called by the devices when data is ready for the HBA. The HBA should |
1598 | start a DMA operation to read or fill the device's data buffer. | |
ad3376cc | 1599 | Once it completes, calling scsi_req_continue will restart I/O. */ |
ab9adc88 PB |
1600 | void scsi_req_data(SCSIRequest *req, int len) |
1601 | { | |
3d5aba97 | 1602 | uint8_t *buf; |
e88c591d PB |
1603 | if (req->io_canceled) { |
1604 | trace_scsi_req_data_canceled(req->dev->id, req->lun, req->tag, len); | |
01e95455 | 1605 | return; |
e88c591d | 1606 | } |
01e95455 PB |
1607 | trace_scsi_req_data(req->dev->id, req->lun, req->tag, len); |
1608 | assert(req->cmd.mode != SCSI_XFER_NONE); | |
3d5aba97 PB |
1609 | if (!req->sg) { |
1610 | req->resid -= len; | |
1611 | req->bus->info->transfer_data(req, len); | |
1612 | return; | |
1613 | } | |
1614 | ||
1615 | /* If the device calls scsi_req_data and the HBA specified a | |
1616 | * scatter/gather list, the transfer has to happen in a single | |
1617 | * step. */ | |
1618 | assert(!req->dma_started); | |
1619 | req->dma_started = true; | |
1620 | ||
1621 | buf = scsi_req_get_buf(req); | |
1622 | if (req->cmd.mode == SCSI_XFER_FROM_DEV) { | |
1623 | req->resid = dma_buf_read(buf, len, req->sg); | |
1624 | } else { | |
1625 | req->resid = dma_buf_write(buf, len, req->sg); | |
1626 | } | |
1627 | scsi_req_continue(req); | |
ab9adc88 PB |
1628 | } |
1629 | ||
ec766865 GH |
1630 | void scsi_req_print(SCSIRequest *req) |
1631 | { | |
1632 | FILE *fp = stderr; | |
1633 | int i; | |
1634 | ||
1635 | fprintf(fp, "[%s id=%d] %s", | |
1636 | req->dev->qdev.parent_bus->name, | |
1637 | req->dev->id, | |
1638 | scsi_command_name(req->cmd.buf[0])); | |
1639 | for (i = 1; i < req->cmd.len; i++) { | |
1640 | fprintf(fp, " 0x%02x", req->cmd.buf[i]); | |
1641 | } | |
1642 | switch (req->cmd.mode) { | |
1643 | case SCSI_XFER_NONE: | |
1644 | fprintf(fp, " - none\n"); | |
1645 | break; | |
1646 | case SCSI_XFER_FROM_DEV: | |
1647 | fprintf(fp, " - from-dev len=%zd\n", req->cmd.xfer); | |
1648 | break; | |
1649 | case SCSI_XFER_TO_DEV: | |
1650 | fprintf(fp, " - to-dev len=%zd\n", req->cmd.xfer); | |
1651 | break; | |
1652 | default: | |
1653 | fprintf(fp, " - Oops\n"); | |
1654 | break; | |
1655 | } | |
1656 | } | |
1657 | ||
682a9b21 | 1658 | void scsi_req_complete(SCSIRequest *req, int status) |
ed3a34a3 | 1659 | { |
682a9b21 PB |
1660 | assert(req->status == -1); |
1661 | req->status = status; | |
b45ef674 | 1662 | |
335f560f | 1663 | assert(req->sense_len <= sizeof(req->sense)); |
b45ef674 PB |
1664 | if (status == GOOD) { |
1665 | req->sense_len = 0; | |
1666 | } | |
1667 | ||
1668 | if (req->sense_len) { | |
1669 | memcpy(req->dev->sense, req->sense, req->sense_len); | |
3653d8c4 PB |
1670 | req->dev->sense_len = req->sense_len; |
1671 | req->dev->sense_is_ua = (req->ops == &reqops_unit_attention); | |
1672 | } else { | |
1673 | req->dev->sense_len = 0; | |
1674 | req->dev->sense_is_ua = false; | |
b45ef674 | 1675 | } |
b45ef674 | 1676 | |
6dc06f08 PB |
1677 | /* |
1678 | * Unit attention state is now stored in the device's sense buffer | |
1679 | * if the HBA didn't do autosense. Clear the pending unit attention | |
1680 | * flags. | |
1681 | */ | |
1682 | scsi_clear_unit_attention(req); | |
1683 | ||
ad2d30f7 | 1684 | scsi_req_ref(req); |
e8637c90 | 1685 | scsi_req_dequeue(req); |
01e95455 | 1686 | req->bus->info->complete(req, req->status, req->resid); |
ad2d30f7 | 1687 | scsi_req_unref(req); |
ed3a34a3 | 1688 | } |
db07c0f8 | 1689 | |
94d3f98a PB |
1690 | void scsi_req_cancel(SCSIRequest *req) |
1691 | { | |
814589c4 | 1692 | trace_scsi_req_cancel(req->dev->id, req->lun, req->tag); |
e88c591d PB |
1693 | if (!req->enqueued) { |
1694 | return; | |
94d3f98a PB |
1695 | } |
1696 | scsi_req_ref(req); | |
1697 | scsi_req_dequeue(req); | |
e88c591d PB |
1698 | req->io_canceled = true; |
1699 | if (req->ops->cancel_io) { | |
1700 | req->ops->cancel_io(req); | |
1701 | } | |
afd4030c PB |
1702 | if (req->bus->info->cancel) { |
1703 | req->bus->info->cancel(req); | |
94d3f98a PB |
1704 | } |
1705 | scsi_req_unref(req); | |
1706 | } | |
1707 | ||
19d110ab PB |
1708 | void scsi_req_abort(SCSIRequest *req, int status) |
1709 | { | |
e88c591d PB |
1710 | if (!req->enqueued) { |
1711 | return; | |
1712 | } | |
1713 | scsi_req_ref(req); | |
1714 | scsi_req_dequeue(req); | |
1715 | req->io_canceled = true; | |
12010e7b PB |
1716 | if (req->ops->cancel_io) { |
1717 | req->ops->cancel_io(req); | |
19d110ab | 1718 | } |
682a9b21 | 1719 | scsi_req_complete(req, status); |
e88c591d | 1720 | scsi_req_unref(req); |
19d110ab PB |
1721 | } |
1722 | ||
e48e84ea PB |
1723 | static int scsi_ua_precedence(SCSISense sense) |
1724 | { | |
1725 | if (sense.key != UNIT_ATTENTION) { | |
1726 | return INT_MAX; | |
1727 | } | |
1728 | if (sense.asc == 0x29 && sense.ascq == 0x04) { | |
1729 | /* DEVICE INTERNAL RESET goes with POWER ON OCCURRED */ | |
1730 | return 1; | |
1731 | } else if (sense.asc == 0x3F && sense.ascq == 0x01) { | |
1732 | /* MICROCODE HAS BEEN CHANGED goes with SCSI BUS RESET OCCURRED */ | |
1733 | return 2; | |
1734 | } else if (sense.asc == 0x29 && (sense.ascq == 0x05 || sense.ascq == 0x06)) { | |
1735 | /* These two go with "all others". */ | |
1736 | ; | |
1737 | } else if (sense.asc == 0x29 && sense.ascq <= 0x07) { | |
1738 | /* POWER ON, RESET OR BUS DEVICE RESET OCCURRED = 0 | |
1739 | * POWER ON OCCURRED = 1 | |
1740 | * SCSI BUS RESET OCCURRED = 2 | |
1741 | * BUS DEVICE RESET FUNCTION OCCURRED = 3 | |
1742 | * I_T NEXUS LOSS OCCURRED = 7 | |
1743 | */ | |
1744 | return sense.ascq; | |
1745 | } else if (sense.asc == 0x2F && sense.ascq == 0x01) { | |
1746 | /* COMMANDS CLEARED BY POWER LOSS NOTIFICATION */ | |
1747 | return 8; | |
1748 | } | |
1749 | return (sense.asc << 8) | sense.ascq; | |
1750 | } | |
1751 | ||
1752 | void scsi_device_set_ua(SCSIDevice *sdev, SCSISense sense) | |
1753 | { | |
1754 | int prec1, prec2; | |
1755 | if (sense.key != UNIT_ATTENTION) { | |
1756 | return; | |
1757 | } | |
1758 | trace_scsi_device_set_ua(sdev->id, sdev->lun, sense.key, | |
1759 | sense.asc, sense.ascq); | |
1760 | ||
1761 | /* | |
1762 | * Override a pre-existing unit attention condition, except for a more | |
1763 | * important reset condition. | |
1764 | */ | |
1765 | prec1 = scsi_ua_precedence(sdev->unit_attention); | |
1766 | prec2 = scsi_ua_precedence(sense); | |
1767 | if (prec2 < prec1) { | |
1768 | sdev->unit_attention = sense; | |
1769 | } | |
1770 | } | |
1771 | ||
c7b48872 | 1772 | void scsi_device_purge_requests(SCSIDevice *sdev, SCSISense sense) |
c557e889 PB |
1773 | { |
1774 | SCSIRequest *req; | |
1775 | ||
1776 | while (!QTAILQ_EMPTY(&sdev->requests)) { | |
1777 | req = QTAILQ_FIRST(&sdev->requests); | |
94d3f98a | 1778 | scsi_req_cancel(req); |
c557e889 | 1779 | } |
e48e84ea PB |
1780 | |
1781 | scsi_device_set_ua(sdev, sense); | |
c557e889 PB |
1782 | } |
1783 | ||
baa1bd89 PB |
1784 | static char *scsibus_get_dev_path(DeviceState *dev) |
1785 | { | |
1786 | SCSIDevice *d = DO_UPCAST(SCSIDevice, qdev, dev); | |
1787 | DeviceState *hba = dev->parent_bus->parent; | |
09e5ab63 | 1788 | char *id; |
b7c8c35f | 1789 | char *path; |
baa1bd89 | 1790 | |
09e5ab63 | 1791 | id = qdev_get_dev_path(hba); |
baa1bd89 | 1792 | if (id) { |
b7c8c35f | 1793 | path = g_strdup_printf("%s/%d:%d:%d", id, d->channel, d->id, d->lun); |
baa1bd89 | 1794 | } else { |
b7c8c35f | 1795 | path = g_strdup_printf("%d:%d:%d", d->channel, d->id, d->lun); |
baa1bd89 | 1796 | } |
b7c8c35f PB |
1797 | g_free(id); |
1798 | return path; | |
baa1bd89 PB |
1799 | } |
1800 | ||
db07c0f8 GN |
1801 | static char *scsibus_get_fw_dev_path(DeviceState *dev) |
1802 | { | |
b9eea3e6 | 1803 | SCSIDevice *d = SCSI_DEVICE(dev); |
a5cf8262 JM |
1804 | return g_strdup_printf("channel@%x/%s@%x,%x", d->channel, |
1805 | qdev_fw_name(dev), d->id, d->lun); | |
f48a7a6e PB |
1806 | } |
1807 | ||
0d3545e7 | 1808 | SCSIDevice *scsi_device_find(SCSIBus *bus, int channel, int id, int lun) |
f48a7a6e | 1809 | { |
0866aca1 | 1810 | BusChild *kid; |
f48a7a6e | 1811 | SCSIDevice *target_dev = NULL; |
db07c0f8 | 1812 | |
0866aca1 AL |
1813 | QTAILQ_FOREACH_REVERSE(kid, &bus->qbus.children, ChildrenHead, sibling) { |
1814 | DeviceState *qdev = kid->child; | |
b9eea3e6 | 1815 | SCSIDevice *dev = SCSI_DEVICE(qdev); |
db07c0f8 | 1816 | |
0d3545e7 | 1817 | if (dev->channel == channel && dev->id == id) { |
f48a7a6e PB |
1818 | if (dev->lun == lun) { |
1819 | return dev; | |
1820 | } | |
1821 | target_dev = dev; | |
1822 | } | |
1823 | } | |
1824 | return target_dev; | |
db07c0f8 | 1825 | } |
b9eea3e6 | 1826 | |
63f740dd PB |
1827 | /* SCSI request list. For simplicity, pv points to the whole device */ |
1828 | ||
1829 | static void put_scsi_requests(QEMUFile *f, void *pv, size_t size) | |
1830 | { | |
1831 | SCSIDevice *s = pv; | |
1832 | SCSIBus *bus = DO_UPCAST(SCSIBus, qbus, s->qdev.parent_bus); | |
1833 | SCSIRequest *req; | |
1834 | ||
1835 | QTAILQ_FOREACH(req, &s->requests, next) { | |
1836 | assert(!req->io_canceled); | |
1837 | assert(req->status == -1); | |
63f740dd PB |
1838 | assert(req->enqueued); |
1839 | ||
18eef3bc | 1840 | qemu_put_sbyte(f, req->retry ? 1 : 2); |
63f740dd PB |
1841 | qemu_put_buffer(f, req->cmd.buf, sizeof(req->cmd.buf)); |
1842 | qemu_put_be32s(f, &req->tag); | |
1843 | qemu_put_be32s(f, &req->lun); | |
1844 | if (bus->info->save_request) { | |
1845 | bus->info->save_request(f, req); | |
1846 | } | |
1847 | if (req->ops->save_request) { | |
1848 | req->ops->save_request(f, req); | |
1849 | } | |
1850 | } | |
1851 | qemu_put_sbyte(f, 0); | |
1852 | } | |
1853 | ||
1854 | static int get_scsi_requests(QEMUFile *f, void *pv, size_t size) | |
1855 | { | |
1856 | SCSIDevice *s = pv; | |
1857 | SCSIBus *bus = DO_UPCAST(SCSIBus, qbus, s->qdev.parent_bus); | |
18eef3bc | 1858 | int8_t sbyte; |
63f740dd | 1859 | |
18eef3bc | 1860 | while ((sbyte = qemu_get_sbyte(f)) > 0) { |
63f740dd PB |
1861 | uint8_t buf[SCSI_CMD_BUF_SIZE]; |
1862 | uint32_t tag; | |
1863 | uint32_t lun; | |
1864 | SCSIRequest *req; | |
1865 | ||
1866 | qemu_get_buffer(f, buf, sizeof(buf)); | |
1867 | qemu_get_be32s(f, &tag); | |
1868 | qemu_get_be32s(f, &lun); | |
1869 | req = scsi_req_new(s, tag, lun, buf, NULL); | |
18eef3bc | 1870 | req->retry = (sbyte == 1); |
63f740dd PB |
1871 | if (bus->info->load_request) { |
1872 | req->hba_private = bus->info->load_request(f, req); | |
1873 | } | |
1874 | if (req->ops->load_request) { | |
1875 | req->ops->load_request(f, req); | |
1876 | } | |
1877 | ||
1878 | /* Just restart it later. */ | |
63f740dd PB |
1879 | scsi_req_enqueue_internal(req); |
1880 | ||
1881 | /* At this point, the request will be kept alive by the reference | |
1882 | * added by scsi_req_enqueue_internal, so we can release our reference. | |
1883 | * The HBA of course will add its own reference in the load_request | |
1884 | * callback if it needs to hold on the SCSIRequest. | |
1885 | */ | |
1886 | scsi_req_unref(req); | |
1887 | } | |
1888 | ||
1889 | return 0; | |
1890 | } | |
1891 | ||
350e6e41 CM |
1892 | static int scsi_qdev_unplug(DeviceState *qdev) |
1893 | { | |
1894 | SCSIDevice *dev = SCSI_DEVICE(qdev); | |
1895 | SCSIBus *bus = DO_UPCAST(SCSIBus, qbus, dev->qdev.parent_bus); | |
1896 | ||
1897 | if (bus->info->hot_unplug) { | |
1898 | bus->info->hot_unplug(bus, dev); | |
1899 | } | |
1900 | return qdev_simple_unplug_cb(qdev); | |
1901 | } | |
1902 | ||
12badfc2 | 1903 | static const VMStateInfo vmstate_info_scsi_requests = { |
63f740dd PB |
1904 | .name = "scsi-requests", |
1905 | .get = get_scsi_requests, | |
1906 | .put = put_scsi_requests, | |
1907 | }; | |
1908 | ||
2e323f03 FZ |
1909 | static bool scsi_sense_state_needed(void *opaque) |
1910 | { | |
1911 | SCSIDevice *s = opaque; | |
1912 | ||
1913 | return s->sense_len > SCSI_SENSE_BUF_SIZE_OLD; | |
1914 | } | |
1915 | ||
1916 | static const VMStateDescription vmstate_scsi_sense_state = { | |
1917 | .name = "SCSIDevice/sense", | |
1918 | .version_id = 1, | |
1919 | .minimum_version_id = 1, | |
d49805ae | 1920 | .fields = (VMStateField[]) { |
2e323f03 FZ |
1921 | VMSTATE_UINT8_SUB_ARRAY(sense, SCSIDevice, |
1922 | SCSI_SENSE_BUF_SIZE_OLD, | |
1923 | SCSI_SENSE_BUF_SIZE - SCSI_SENSE_BUF_SIZE_OLD), | |
1924 | VMSTATE_END_OF_LIST() | |
1925 | } | |
1926 | }; | |
1927 | ||
63f740dd PB |
1928 | const VMStateDescription vmstate_scsi_device = { |
1929 | .name = "SCSIDevice", | |
1930 | .version_id = 1, | |
1931 | .minimum_version_id = 1, | |
63f740dd PB |
1932 | .fields = (VMStateField[]) { |
1933 | VMSTATE_UINT8(unit_attention.key, SCSIDevice), | |
1934 | VMSTATE_UINT8(unit_attention.asc, SCSIDevice), | |
1935 | VMSTATE_UINT8(unit_attention.ascq, SCSIDevice), | |
1936 | VMSTATE_BOOL(sense_is_ua, SCSIDevice), | |
2e323f03 | 1937 | VMSTATE_UINT8_SUB_ARRAY(sense, SCSIDevice, 0, SCSI_SENSE_BUF_SIZE_OLD), |
63f740dd PB |
1938 | VMSTATE_UINT32(sense_len, SCSIDevice), |
1939 | { | |
1940 | .name = "requests", | |
1941 | .version_id = 0, | |
1942 | .field_exists = NULL, | |
1943 | .size = 0, /* ouch */ | |
1944 | .info = &vmstate_info_scsi_requests, | |
1945 | .flags = VMS_SINGLE, | |
1946 | .offset = 0, | |
1947 | }, | |
1948 | VMSTATE_END_OF_LIST() | |
2e323f03 FZ |
1949 | }, |
1950 | .subsections = (VMStateSubsection []) { | |
1951 | { | |
1952 | .vmsd = &vmstate_scsi_sense_state, | |
1953 | .needed = scsi_sense_state_needed, | |
1954 | }, { | |
1955 | /* empty */ | |
1956 | } | |
63f740dd PB |
1957 | } |
1958 | }; | |
1959 | ||
39bffca2 AL |
1960 | static void scsi_device_class_init(ObjectClass *klass, void *data) |
1961 | { | |
1962 | DeviceClass *k = DEVICE_CLASS(klass); | |
125ee0ed | 1963 | set_bit(DEVICE_CATEGORY_STORAGE, k->categories); |
0d936928 | 1964 | k->bus_type = TYPE_SCSI_BUS; |
39bffca2 | 1965 | k->init = scsi_qdev_init; |
350e6e41 | 1966 | k->unplug = scsi_qdev_unplug; |
39bffca2 | 1967 | k->exit = scsi_qdev_exit; |
bce54474 | 1968 | k->props = scsi_props; |
39bffca2 AL |
1969 | } |
1970 | ||
8c43a6f0 | 1971 | static const TypeInfo scsi_device_type_info = { |
b9eea3e6 AL |
1972 | .name = TYPE_SCSI_DEVICE, |
1973 | .parent = TYPE_DEVICE, | |
1974 | .instance_size = sizeof(SCSIDevice), | |
1975 | .abstract = true, | |
1976 | .class_size = sizeof(SCSIDeviceClass), | |
39bffca2 | 1977 | .class_init = scsi_device_class_init, |
b9eea3e6 AL |
1978 | }; |
1979 | ||
83f7d43a | 1980 | static void scsi_register_types(void) |
b9eea3e6 | 1981 | { |
0d936928 | 1982 | type_register_static(&scsi_bus_info); |
b9eea3e6 AL |
1983 | type_register_static(&scsi_device_type_info); |
1984 | } | |
1985 | ||
83f7d43a | 1986 | type_init(scsi_register_types) |