2 #include "qemu-error.h"
9 static char *scsibus_get_fw_dev_path(DeviceState
*dev
);
10 static int scsi_build_sense(uint8_t *in_buf
, int in_len
,
11 uint8_t *buf
, int len
, bool fixed
);
13 static struct BusInfo scsi_bus_info
= {
15 .size
= sizeof(SCSIBus
),
16 .get_fw_dev_path
= scsibus_get_fw_dev_path
,
17 .props
= (Property
[]) {
18 DEFINE_PROP_UINT32("scsi-id", SCSIDevice
, id
, -1),
19 DEFINE_PROP_END_OF_LIST(),
22 static int next_scsi_bus
;
24 /* Create a scsi bus, and attach devices to it. */
25 void scsi_bus_new(SCSIBus
*bus
, DeviceState
*host
, int tcq
, int ndev
,
26 const SCSIBusOps
*ops
)
28 qbus_create_inplace(&bus
->qbus
, &scsi_bus_info
, host
, NULL
);
29 bus
->busnr
= next_scsi_bus
++;
33 bus
->qbus
.allow_hotplug
= 1;
36 static int scsi_qdev_init(DeviceState
*qdev
, DeviceInfo
*base
)
38 SCSIDevice
*dev
= DO_UPCAST(SCSIDevice
, qdev
, qdev
);
39 SCSIDeviceInfo
*info
= DO_UPCAST(SCSIDeviceInfo
, qdev
, base
);
40 SCSIBus
*bus
= DO_UPCAST(SCSIBus
, qbus
, dev
->qdev
.parent_bus
);
44 for (dev
->id
= 0; dev
->id
< bus
->ndev
; dev
->id
++) {
45 if (bus
->devs
[dev
->id
] == NULL
)
49 if (dev
->id
>= bus
->ndev
) {
50 error_report("bad scsi device id: %d", dev
->id
);
54 if (bus
->devs
[dev
->id
]) {
55 qdev_free(&bus
->devs
[dev
->id
]->qdev
);
57 bus
->devs
[dev
->id
] = dev
;
60 QTAILQ_INIT(&dev
->requests
);
61 rc
= dev
->info
->init(dev
);
63 bus
->devs
[dev
->id
] = NULL
;
70 static int scsi_qdev_exit(DeviceState
*qdev
)
72 SCSIDevice
*dev
= DO_UPCAST(SCSIDevice
, qdev
, qdev
);
73 SCSIBus
*bus
= DO_UPCAST(SCSIBus
, qbus
, dev
->qdev
.parent_bus
);
75 assert(bus
->devs
[dev
->id
] != NULL
);
76 if (bus
->devs
[dev
->id
]->info
->destroy
) {
77 bus
->devs
[dev
->id
]->info
->destroy(bus
->devs
[dev
->id
]);
79 bus
->devs
[dev
->id
] = NULL
;
83 void scsi_qdev_register(SCSIDeviceInfo
*info
)
85 info
->qdev
.bus_info
= &scsi_bus_info
;
86 info
->qdev
.init
= scsi_qdev_init
;
87 info
->qdev
.unplug
= qdev_simple_unplug_cb
;
88 info
->qdev
.exit
= scsi_qdev_exit
;
89 qdev_register(&info
->qdev
);
92 /* handle legacy '-drive if=scsi,...' cmd line args */
93 SCSIDevice
*scsi_bus_legacy_add_drive(SCSIBus
*bus
, BlockDriverState
*bdrv
,
94 int unit
, bool removable
)
99 driver
= bdrv_is_sg(bdrv
) ? "scsi-generic" : "scsi-disk";
100 dev
= qdev_create(&bus
->qbus
, driver
);
101 qdev_prop_set_uint32(dev
, "scsi-id", unit
);
102 if (qdev_prop_exists(dev
, "removable")) {
103 qdev_prop_set_bit(dev
, "removable", removable
);
105 if (qdev_prop_set_drive(dev
, "drive", bdrv
) < 0) {
109 if (qdev_init(dev
) < 0)
111 return DO_UPCAST(SCSIDevice
, qdev
, dev
);
114 int scsi_bus_legacy_handle_cmdline(SCSIBus
*bus
)
121 for (unit
= 0; unit
< bus
->ndev
; unit
++) {
122 dinfo
= drive_get(IF_SCSI
, bus
->busnr
, unit
);
126 qemu_opts_loc_restore(dinfo
->opts
);
127 if (!scsi_bus_legacy_add_drive(bus
, dinfo
->bdrv
, unit
, false)) {
136 SCSIRequest
*scsi_req_alloc(SCSIReqOps
*reqops
, SCSIDevice
*d
, uint32_t tag
,
137 uint32_t lun
, void *hba_private
)
141 req
= qemu_mallocz(reqops
->size
);
143 req
->bus
= scsi_bus_from_device(d
);
147 req
->hba_private
= hba_private
;
151 trace_scsi_req_alloc(req
->dev
->id
, req
->lun
, req
->tag
);
155 SCSIRequest
*scsi_req_new(SCSIDevice
*d
, uint32_t tag
, uint32_t lun
,
158 return d
->info
->alloc_req(d
, tag
, lun
, hba_private
);
161 uint8_t *scsi_req_get_buf(SCSIRequest
*req
)
163 return req
->ops
->get_buf(req
);
166 int scsi_req_get_sense(SCSIRequest
*req
, uint8_t *buf
, int len
)
169 if (!req
->sense_len
) {
172 return scsi_build_sense(req
->sense
, req
->sense_len
, buf
, len
, true);
175 int scsi_device_get_sense(SCSIDevice
*dev
, uint8_t *buf
, int len
, bool fixed
)
177 return scsi_build_sense(dev
->sense
, dev
->sense_len
, buf
, len
, fixed
);
180 void scsi_req_build_sense(SCSIRequest
*req
, SCSISense sense
)
182 trace_scsi_req_build_sense(req
->dev
->id
, req
->lun
, req
->tag
,
183 sense
.key
, sense
.asc
, sense
.ascq
);
184 memset(req
->sense
, 0, 18);
185 req
->sense
[0] = 0xf0;
186 req
->sense
[2] = sense
.key
;
187 req
->sense
[12] = sense
.asc
;
188 req
->sense
[13] = sense
.ascq
;
192 int32_t scsi_req_enqueue(SCSIRequest
*req
, uint8_t *buf
)
196 assert(!req
->enqueued
);
198 req
->enqueued
= true;
199 QTAILQ_INSERT_TAIL(&req
->dev
->requests
, req
, next
);
202 rc
= req
->ops
->send_command(req
, buf
);
207 static void scsi_req_dequeue(SCSIRequest
*req
)
209 trace_scsi_req_dequeue(req
->dev
->id
, req
->lun
, req
->tag
);
211 QTAILQ_REMOVE(&req
->dev
->requests
, req
, next
);
212 req
->enqueued
= false;
217 static int scsi_req_length(SCSIRequest
*req
, uint8_t *cmd
)
219 switch (cmd
[0] >> 5) {
221 req
->cmd
.xfer
= cmd
[4];
223 /* length 0 means 256 blocks */
224 if (req
->cmd
.xfer
== 0)
229 req
->cmd
.xfer
= cmd
[8] | (cmd
[7] << 8);
233 req
->cmd
.xfer
= cmd
[13] | (cmd
[12] << 8) | (cmd
[11] << 16) | (cmd
[10] << 24);
237 req
->cmd
.xfer
= cmd
[9] | (cmd
[8] << 8) | (cmd
[7] << 16) | (cmd
[6] << 24);
241 trace_scsi_req_parse_bad(req
->dev
->id
, req
->lun
, req
->tag
, cmd
[0]);
246 case TEST_UNIT_READY
:
250 case WRITE_FILEMARKS
:
255 case ALLOW_MEDIUM_REMOVAL
:
258 case SYNCHRONIZE_CACHE
:
259 case LOCK_UNLOCK_CACHE
:
273 case READ_CAPACITY_10
:
276 case READ_BLOCK_LIMITS
:
282 case SEND_VOLUME_TAG
:
289 case WRITE_VERIFY_10
:
292 case WRITE_VERIFY_12
:
294 case WRITE_VERIFY_16
:
295 req
->cmd
.xfer
*= req
->dev
->blocksize
;
300 case RECOVER_BUFFERED_DATA
:
303 req
->cmd
.xfer
*= req
->dev
->blocksize
;
306 req
->cmd
.xfer
= cmd
[4] | (cmd
[3] << 8);
308 case MAINTENANCE_OUT
:
310 if (req
->dev
->type
== TYPE_ROM
) {
311 /* GPCMD_REPORT_KEY and GPCMD_SEND_KEY from multi media commands */
312 req
->cmd
.xfer
= cmd
[9] | (cmd
[8] << 8);
319 static int scsi_req_stream_length(SCSIRequest
*req
, uint8_t *cmd
)
322 /* stream commands */
325 case RECOVER_BUFFERED_DATA
:
328 req
->cmd
.xfer
= cmd
[4] | (cmd
[3] << 8) | (cmd
[2] << 16);
329 if (cmd
[1] & 0x01) /* fixed */
330 req
->cmd
.xfer
*= req
->dev
->blocksize
;
337 /* generic commands */
339 return scsi_req_length(req
, cmd
);
344 static void scsi_req_xfer_mode(SCSIRequest
*req
)
346 switch (req
->cmd
.buf
[0]) {
349 case WRITE_VERIFY_10
:
351 case WRITE_VERIFY_12
:
353 case WRITE_VERIFY_16
:
357 case CHANGE_DEFINITION
:
361 case SEND_DIAGNOSTIC
:
364 case REASSIGN_BLOCKS
:
372 case SEARCH_EQUAL_12
:
375 case SEND_VOLUME_TAG
:
376 case PERSISTENT_RESERVE_OUT
:
377 case MAINTENANCE_OUT
:
378 req
->cmd
.mode
= SCSI_XFER_TO_DEV
;
382 req
->cmd
.mode
= SCSI_XFER_FROM_DEV
;
384 req
->cmd
.mode
= SCSI_XFER_NONE
;
390 static uint64_t scsi_req_lba(SCSIRequest
*req
)
392 uint8_t *buf
= req
->cmd
.buf
;
395 switch (buf
[0] >> 5) {
397 lba
= (uint64_t) buf
[3] | ((uint64_t) buf
[2] << 8) |
398 (((uint64_t) buf
[1] & 0x1f) << 16);
402 lba
= (uint64_t) buf
[5] | ((uint64_t) buf
[4] << 8) |
403 ((uint64_t) buf
[3] << 16) | ((uint64_t) buf
[2] << 24);
406 lba
= (uint64_t) buf
[9] | ((uint64_t) buf
[8] << 8) |
407 ((uint64_t) buf
[7] << 16) | ((uint64_t) buf
[6] << 24) |
408 ((uint64_t) buf
[5] << 32) | ((uint64_t) buf
[4] << 40) |
409 ((uint64_t) buf
[3] << 48) | ((uint64_t) buf
[2] << 56);
412 lba
= (uint64_t) buf
[5] | ((uint64_t) buf
[4] << 8) |
413 ((uint64_t) buf
[3] << 16) | ((uint64_t) buf
[2] << 24);
422 int scsi_req_parse(SCSIRequest
*req
, uint8_t *buf
)
426 if (req
->dev
->type
== TYPE_TAPE
) {
427 rc
= scsi_req_stream_length(req
, buf
);
429 rc
= scsi_req_length(req
, buf
);
434 memcpy(req
->cmd
.buf
, buf
, req
->cmd
.len
);
435 scsi_req_xfer_mode(req
);
436 req
->cmd
.lba
= scsi_req_lba(req
);
437 trace_scsi_req_parsed(req
->dev
->id
, req
->lun
, req
->tag
, buf
[0],
438 req
->cmd
.mode
, req
->cmd
.xfer
);
439 if (req
->cmd
.lba
!= -1) {
440 trace_scsi_req_parsed_lba(req
->dev
->id
, req
->lun
, req
->tag
, buf
[0],
447 * Predefined sense codes
450 /* No sense data available */
451 const struct SCSISense sense_code_NO_SENSE
= {
452 .key
= NO_SENSE
, .asc
= 0x00 , .ascq
= 0x00
455 /* LUN not ready, Manual intervention required */
456 const struct SCSISense sense_code_LUN_NOT_READY
= {
457 .key
= NOT_READY
, .asc
= 0x04, .ascq
= 0x03
460 /* LUN not ready, Medium not present */
461 const struct SCSISense sense_code_NO_MEDIUM
= {
462 .key
= NOT_READY
, .asc
= 0x3a, .ascq
= 0x00
465 /* Hardware error, internal target failure */
466 const struct SCSISense sense_code_TARGET_FAILURE
= {
467 .key
= HARDWARE_ERROR
, .asc
= 0x44, .ascq
= 0x00
470 /* Illegal request, invalid command operation code */
471 const struct SCSISense sense_code_INVALID_OPCODE
= {
472 .key
= ILLEGAL_REQUEST
, .asc
= 0x20, .ascq
= 0x00
475 /* Illegal request, LBA out of range */
476 const struct SCSISense sense_code_LBA_OUT_OF_RANGE
= {
477 .key
= ILLEGAL_REQUEST
, .asc
= 0x21, .ascq
= 0x00
480 /* Illegal request, Invalid field in CDB */
481 const struct SCSISense sense_code_INVALID_FIELD
= {
482 .key
= ILLEGAL_REQUEST
, .asc
= 0x24, .ascq
= 0x00
485 /* Illegal request, LUN not supported */
486 const struct SCSISense sense_code_LUN_NOT_SUPPORTED
= {
487 .key
= ILLEGAL_REQUEST
, .asc
= 0x25, .ascq
= 0x00
490 /* Command aborted, I/O process terminated */
491 const struct SCSISense sense_code_IO_ERROR
= {
492 .key
= ABORTED_COMMAND
, .asc
= 0x00, .ascq
= 0x06
495 /* Command aborted, I_T Nexus loss occurred */
496 const struct SCSISense sense_code_I_T_NEXUS_LOSS
= {
497 .key
= ABORTED_COMMAND
, .asc
= 0x29, .ascq
= 0x07
500 /* Command aborted, Logical Unit failure */
501 const struct SCSISense sense_code_LUN_FAILURE
= {
502 .key
= ABORTED_COMMAND
, .asc
= 0x3e, .ascq
= 0x01
508 * Convert between fixed and descriptor sense buffers
510 int scsi_build_sense(uint8_t *in_buf
, int in_len
,
511 uint8_t *buf
, int len
, bool fixed
)
515 if (!fixed
&& len
< 8) {
520 sense
.key
= NO_SENSE
;
524 fixed_in
= (in_buf
[0] & 2) == 0;
526 if (fixed
== fixed_in
) {
527 memcpy(buf
, in_buf
, MIN(len
, in_len
));
528 return MIN(len
, in_len
);
532 sense
.key
= in_buf
[2];
533 sense
.asc
= in_buf
[12];
534 sense
.ascq
= in_buf
[13];
536 sense
.key
= in_buf
[1];
537 sense
.asc
= in_buf
[2];
538 sense
.ascq
= in_buf
[3];
544 /* Return fixed format sense buffer */
549 buf
[13] = sense
.ascq
;
552 /* Return descriptor format sense buffer */
561 static const char *scsi_command_name(uint8_t cmd
)
563 static const char *names
[] = {
564 [ TEST_UNIT_READY
] = "TEST_UNIT_READY",
565 [ REWIND
] = "REWIND",
566 [ REQUEST_SENSE
] = "REQUEST_SENSE",
567 [ FORMAT_UNIT
] = "FORMAT_UNIT",
568 [ READ_BLOCK_LIMITS
] = "READ_BLOCK_LIMITS",
569 [ REASSIGN_BLOCKS
] = "REASSIGN_BLOCKS",
570 [ READ_6
] = "READ_6",
571 [ WRITE_6
] = "WRITE_6",
572 [ SEEK_6
] = "SEEK_6",
573 [ READ_REVERSE
] = "READ_REVERSE",
574 [ WRITE_FILEMARKS
] = "WRITE_FILEMARKS",
576 [ INQUIRY
] = "INQUIRY",
577 [ RECOVER_BUFFERED_DATA
] = "RECOVER_BUFFERED_DATA",
578 [ MAINTENANCE_IN
] = "MAINTENANCE_IN",
579 [ MAINTENANCE_OUT
] = "MAINTENANCE_OUT",
580 [ MODE_SELECT
] = "MODE_SELECT",
581 [ RESERVE
] = "RESERVE",
582 [ RELEASE
] = "RELEASE",
585 [ MODE_SENSE
] = "MODE_SENSE",
586 [ START_STOP
] = "START_STOP",
587 [ RECEIVE_DIAGNOSTIC
] = "RECEIVE_DIAGNOSTIC",
588 [ SEND_DIAGNOSTIC
] = "SEND_DIAGNOSTIC",
589 [ ALLOW_MEDIUM_REMOVAL
] = "ALLOW_MEDIUM_REMOVAL",
590 [ READ_CAPACITY_10
] = "READ_CAPACITY_10",
591 [ READ_10
] = "READ_10",
592 [ WRITE_10
] = "WRITE_10",
593 [ SEEK_10
] = "SEEK_10",
594 [ WRITE_VERIFY_10
] = "WRITE_VERIFY_10",
595 [ VERIFY_10
] = "VERIFY_10",
596 [ SEARCH_HIGH
] = "SEARCH_HIGH",
597 [ SEARCH_EQUAL
] = "SEARCH_EQUAL",
598 [ SEARCH_LOW
] = "SEARCH_LOW",
599 [ SET_LIMITS
] = "SET_LIMITS",
600 [ PRE_FETCH
] = "PRE_FETCH",
601 /* READ_POSITION and PRE_FETCH use the same operation code */
602 [ SYNCHRONIZE_CACHE
] = "SYNCHRONIZE_CACHE",
603 [ LOCK_UNLOCK_CACHE
] = "LOCK_UNLOCK_CACHE",
604 [ READ_DEFECT_DATA
] = "READ_DEFECT_DATA",
605 [ MEDIUM_SCAN
] = "MEDIUM_SCAN",
606 [ COMPARE
] = "COMPARE",
607 [ COPY_VERIFY
] = "COPY_VERIFY",
608 [ WRITE_BUFFER
] = "WRITE_BUFFER",
609 [ READ_BUFFER
] = "READ_BUFFER",
610 [ UPDATE_BLOCK
] = "UPDATE_BLOCK",
611 [ READ_LONG_10
] = "READ_LONG_10",
612 [ WRITE_LONG_10
] = "WRITE_LONG_10",
613 [ CHANGE_DEFINITION
] = "CHANGE_DEFINITION",
614 [ WRITE_SAME_10
] = "WRITE_SAME_10",
616 [ READ_TOC
] = "READ_TOC",
617 [ REPORT_DENSITY_SUPPORT
] = "REPORT_DENSITY_SUPPORT",
618 [ GET_CONFIGURATION
] = "GET_CONFIGURATION",
619 [ LOG_SELECT
] = "LOG_SELECT",
620 [ LOG_SENSE
] = "LOG_SENSE",
621 [ MODE_SELECT_10
] = "MODE_SELECT_10",
622 [ RESERVE_10
] = "RESERVE_10",
623 [ RELEASE_10
] = "RELEASE_10",
624 [ MODE_SENSE_10
] = "MODE_SENSE_10",
625 [ PERSISTENT_RESERVE_IN
] = "PERSISTENT_RESERVE_IN",
626 [ PERSISTENT_RESERVE_OUT
] = "PERSISTENT_RESERVE_OUT",
627 [ WRITE_FILEMARKS_16
] = "WRITE_FILEMARKS_16",
628 [ EXTENDED_COPY
] = "EXTENDED_COPY",
629 [ ATA_PASSTHROUGH
] = "ATA_PASSTHROUGH",
630 [ ACCESS_CONTROL_IN
] = "ACCESS_CONTROL_IN",
631 [ ACCESS_CONTROL_OUT
] = "ACCESS_CONTROL_OUT",
632 [ READ_16
] = "READ_16",
633 [ COMPARE_AND_WRITE
] = "COMPARE_AND_WRITE",
634 [ WRITE_16
] = "WRITE_16",
635 [ WRITE_VERIFY_16
] = "WRITE_VERIFY_16",
636 [ VERIFY_16
] = "VERIFY_16",
637 [ SYNCHRONIZE_CACHE_16
] = "SYNCHRONIZE_CACHE_16",
638 [ LOCATE_16
] = "LOCATE_16",
639 [ WRITE_SAME_16
] = "WRITE_SAME_16",
640 [ ERASE_16
] = "ERASE_16",
641 [ SERVICE_ACTION_IN
] = "SERVICE_ACTION_IN",
642 [ WRITE_LONG_16
] = "WRITE_LONG_16",
643 [ REPORT_LUNS
] = "REPORT_LUNS",
645 [ MAINTENANCE_IN
] = "MAINTENANCE_IN",
646 [ MAINTENANCE_OUT
] = "MAINTENANCE_OUT",
647 [ MOVE_MEDIUM
] = "MOVE_MEDIUM",
648 [ LOAD_UNLOAD
] = "LOAD_UNLOAD",
649 [ READ_12
] = "READ_12",
650 [ WRITE_12
] = "WRITE_12",
651 [ WRITE_VERIFY_12
] = "WRITE_VERIFY_12",
652 [ VERIFY_12
] = "VERIFY_12",
653 [ SEARCH_HIGH_12
] = "SEARCH_HIGH_12",
654 [ SEARCH_EQUAL_12
] = "SEARCH_EQUAL_12",
655 [ SEARCH_LOW_12
] = "SEARCH_LOW_12",
656 [ READ_ELEMENT_STATUS
] = "READ_ELEMENT_STATUS",
657 [ SEND_VOLUME_TAG
] = "SEND_VOLUME_TAG",
658 [ READ_DEFECT_DATA_12
] = "READ_DEFECT_DATA_12",
659 [ SET_CD_SPEED
] = "SET_CD_SPEED",
662 if (cmd
>= ARRAY_SIZE(names
) || names
[cmd
] == NULL
)
667 SCSIRequest
*scsi_req_ref(SCSIRequest
*req
)
673 void scsi_req_unref(SCSIRequest
*req
)
675 if (--req
->refcount
== 0) {
676 if (req
->ops
->free_req
) {
677 req
->ops
->free_req(req
);
683 /* Tell the device that we finished processing this chunk of I/O. It
684 will start the next chunk or complete the command. */
685 void scsi_req_continue(SCSIRequest
*req
)
687 trace_scsi_req_continue(req
->dev
->id
, req
->lun
, req
->tag
);
688 if (req
->cmd
.mode
== SCSI_XFER_TO_DEV
) {
689 req
->ops
->write_data(req
);
691 req
->ops
->read_data(req
);
695 /* Called by the devices when data is ready for the HBA. The HBA should
696 start a DMA operation to read or fill the device's data buffer.
697 Once it completes, calling scsi_req_continue will restart I/O. */
698 void scsi_req_data(SCSIRequest
*req
, int len
)
700 trace_scsi_req_data(req
->dev
->id
, req
->lun
, req
->tag
, len
);
701 req
->bus
->ops
->transfer_data(req
, len
);
704 void scsi_req_print(SCSIRequest
*req
)
709 fprintf(fp
, "[%s id=%d] %s",
710 req
->dev
->qdev
.parent_bus
->name
,
712 scsi_command_name(req
->cmd
.buf
[0]));
713 for (i
= 1; i
< req
->cmd
.len
; i
++) {
714 fprintf(fp
, " 0x%02x", req
->cmd
.buf
[i
]);
716 switch (req
->cmd
.mode
) {
718 fprintf(fp
, " - none\n");
720 case SCSI_XFER_FROM_DEV
:
721 fprintf(fp
, " - from-dev len=%zd\n", req
->cmd
.xfer
);
723 case SCSI_XFER_TO_DEV
:
724 fprintf(fp
, " - to-dev len=%zd\n", req
->cmd
.xfer
);
727 fprintf(fp
, " - Oops\n");
732 void scsi_req_complete(SCSIRequest
*req
, int status
)
734 assert(req
->status
== -1);
735 req
->status
= status
;
737 assert(req
->sense_len
< sizeof(req
->sense
));
738 if (status
== GOOD
) {
742 if (req
->sense_len
) {
743 memcpy(req
->dev
->sense
, req
->sense
, req
->sense_len
);
745 req
->dev
->sense_len
= req
->sense_len
;
748 scsi_req_dequeue(req
);
749 req
->bus
->ops
->complete(req
, req
->status
);
753 void scsi_req_cancel(SCSIRequest
*req
)
755 if (req
->ops
->cancel_io
) {
756 req
->ops
->cancel_io(req
);
759 scsi_req_dequeue(req
);
760 if (req
->bus
->ops
->cancel
) {
761 req
->bus
->ops
->cancel(req
);
766 void scsi_req_abort(SCSIRequest
*req
, int status
)
768 if (req
->ops
->cancel_io
) {
769 req
->ops
->cancel_io(req
);
771 scsi_req_complete(req
, status
);
774 void scsi_device_purge_requests(SCSIDevice
*sdev
)
778 while (!QTAILQ_EMPTY(&sdev
->requests
)) {
779 req
= QTAILQ_FIRST(&sdev
->requests
);
780 scsi_req_cancel(req
);
784 static char *scsibus_get_fw_dev_path(DeviceState
*dev
)
786 SCSIDevice
*d
= DO_UPCAST(SCSIDevice
, qdev
, dev
);
787 SCSIBus
*bus
= scsi_bus_from_device(d
);
791 for (i
= 0; i
< bus
->ndev
; i
++) {
792 if (bus
->devs
[i
] == d
) {
797 assert(i
!= bus
->ndev
);
799 snprintf(path
, sizeof(path
), "%s@%x", qdev_fw_name(dev
), i
);