static char *scsibus_get_fw_dev_path(DeviceState *dev);
static int scsi_req_parse(SCSICommand *cmd, SCSIDevice *dev, uint8_t *buf);
-static int scsi_build_sense(uint8_t *in_buf, int in_len,
- uint8_t *buf, int len, bool fixed);
+static void scsi_req_dequeue(SCSIRequest *req);
static struct BusInfo scsi_bus_info = {
.name = "SCSI",
.size = sizeof(SCSIBus),
.get_fw_dev_path = scsibus_get_fw_dev_path,
.props = (Property[]) {
+ DEFINE_PROP_UINT32("channel", SCSIDevice, channel, 0),
DEFINE_PROP_UINT32("scsi-id", SCSIDevice, id, -1),
- DEFINE_PROP_UINT32("lun", SCSIDevice, lun, 0),
+ DEFINE_PROP_UINT32("lun", SCSIDevice, lun, -1),
DEFINE_PROP_END_OF_LIST(),
},
};
static int next_scsi_bus;
+static int scsi_device_init(SCSIDevice *s)
+{
+ SCSIDeviceClass *sc = SCSI_DEVICE_GET_CLASS(s);
+ if (sc->init) {
+ return sc->init(s);
+ }
+ return 0;
+}
+
+static void scsi_device_destroy(SCSIDevice *s)
+{
+ SCSIDeviceClass *sc = SCSI_DEVICE_GET_CLASS(s);
+ if (sc->destroy) {
+ sc->destroy(s);
+ }
+}
+
+static SCSIRequest *scsi_device_alloc_req(SCSIDevice *s, uint32_t tag, uint32_t lun,
+ uint8_t *buf, void *hba_private)
+{
+ SCSIDeviceClass *sc = SCSI_DEVICE_GET_CLASS(s);
+ if (sc->alloc_req) {
+ return sc->alloc_req(s, tag, lun, buf, hba_private);
+ }
+
+ return NULL;
+}
+
+static void scsi_device_unit_attention_reported(SCSIDevice *s)
+{
+ SCSIDeviceClass *sc = SCSI_DEVICE_GET_CLASS(s);
+ if (sc->unit_attention_reported) {
+ sc->unit_attention_reported(s);
+ }
+}
+
/* Create a scsi bus, and attach devices to it. */
void scsi_bus_new(SCSIBus *bus, DeviceState *host, const SCSIBusInfo *info)
{
bus->qbus.allow_hotplug = 1;
}
-static int scsi_qdev_init(DeviceState *qdev, DeviceInfo *base)
+static void scsi_dma_restart_bh(void *opaque)
+{
+ SCSIDevice *s = opaque;
+ SCSIRequest *req, *next;
+
+ qemu_bh_delete(s->bh);
+ s->bh = NULL;
+
+ QTAILQ_FOREACH_SAFE(req, &s->requests, next, next) {
+ scsi_req_ref(req);
+ if (req->retry) {
+ req->retry = false;
+ switch (req->cmd.mode) {
+ case SCSI_XFER_FROM_DEV:
+ case SCSI_XFER_TO_DEV:
+ scsi_req_continue(req);
+ break;
+ case SCSI_XFER_NONE:
+ scsi_req_dequeue(req);
+ scsi_req_enqueue(req);
+ break;
+ }
+ }
+ scsi_req_unref(req);
+ }
+}
+
+void scsi_req_retry(SCSIRequest *req)
+{
+ /* No need to save a reference, because scsi_dma_restart_bh just
+ * looks at the request list. */
+ req->retry = true;
+}
+
+static void scsi_dma_restart_cb(void *opaque, int running, RunState state)
+{
+ SCSIDevice *s = opaque;
+
+ if (!running) {
+ return;
+ }
+ if (!s->bh) {
+ s->bh = qemu_bh_new(scsi_dma_restart_bh, s);
+ qemu_bh_schedule(s->bh);
+ }
+}
+
+static int scsi_qdev_init(DeviceState *qdev)
{
- SCSIDevice *dev = DO_UPCAST(SCSIDevice, qdev, qdev);
- SCSIDeviceInfo *info = DO_UPCAST(SCSIDeviceInfo, qdev, base);
+ SCSIDevice *dev = SCSI_DEVICE(qdev);
SCSIBus *bus = DO_UPCAST(SCSIBus, qbus, dev->qdev.parent_bus);
+ SCSIDevice *d;
int rc = -1;
- if (dev->id == -1) {
- for (dev->id = 0; dev->id < bus->info->ndev; dev->id++) {
- if (bus->devs[dev->id] == NULL)
- break;
- }
+ if (dev->channel > bus->info->max_channel) {
+ error_report("bad scsi channel id: %d", dev->channel);
+ goto err;
}
- if (dev->id >= bus->info->ndev) {
+ if (dev->id != -1 && dev->id > bus->info->max_target) {
error_report("bad scsi device id: %d", dev->id);
goto err;
}
- if (bus->devs[dev->id]) {
- qdev_free(&bus->devs[dev->id]->qdev);
+ if (dev->id == -1) {
+ int id = -1;
+ if (dev->lun == -1) {
+ dev->lun = 0;
+ }
+ do {
+ d = scsi_device_find(bus, dev->channel, ++id, dev->lun);
+ } while (d && d->lun == dev->lun && id <= bus->info->max_target);
+ if (id > bus->info->max_target) {
+ error_report("no free target");
+ goto err;
+ }
+ dev->id = id;
+ } else if (dev->lun == -1) {
+ int lun = -1;
+ do {
+ d = scsi_device_find(bus, dev->channel, dev->id, ++lun);
+ } while (d && d->lun == lun && lun < bus->info->max_lun);
+ if (lun > bus->info->max_lun) {
+ error_report("no free lun");
+ goto err;
+ }
+ dev->lun = lun;
+ } else {
+ d = scsi_device_find(bus, dev->channel, dev->id, dev->lun);
+ if (dev->lun == d->lun && dev != d) {
+ qdev_free(&d->qdev);
+ }
}
- bus->devs[dev->id] = dev;
- dev->info = info;
QTAILQ_INIT(&dev->requests);
- rc = dev->info->init(dev);
- if (rc != 0) {
- bus->devs[dev->id] = NULL;
+ rc = scsi_device_init(dev);
+ if (rc == 0) {
+ dev->vmsentry = qemu_add_vm_change_state_handler(scsi_dma_restart_cb,
+ dev);
}
err:
static int scsi_qdev_exit(DeviceState *qdev)
{
- SCSIDevice *dev = DO_UPCAST(SCSIDevice, qdev, qdev);
- SCSIBus *bus = DO_UPCAST(SCSIBus, qbus, dev->qdev.parent_bus);
+ SCSIDevice *dev = SCSI_DEVICE(qdev);
- assert(bus->devs[dev->id] != NULL);
- if (bus->devs[dev->id]->info->destroy) {
- bus->devs[dev->id]->info->destroy(bus->devs[dev->id]);
+ if (dev->vmsentry) {
+ qemu_del_vm_change_state_handler(dev->vmsentry);
}
- bus->devs[dev->id] = NULL;
+ scsi_device_destroy(dev);
return 0;
}
-void scsi_qdev_register(SCSIDeviceInfo *info)
-{
- info->qdev.bus_info = &scsi_bus_info;
- info->qdev.init = scsi_qdev_init;
- info->qdev.unplug = qdev_simple_unplug_cb;
- info->qdev.exit = scsi_qdev_exit;
- qdev_register(&info->qdev);
-}
-
/* handle legacy '-drive if=scsi,...' cmd line args */
SCSIDevice *scsi_bus_legacy_add_drive(SCSIBus *bus, BlockDriverState *bdrv,
- int unit, bool removable)
+ int unit, bool removable, int bootindex)
{
const char *driver;
DeviceState *dev;
driver = bdrv_is_sg(bdrv) ? "scsi-generic" : "scsi-disk";
dev = qdev_create(&bus->qbus, driver);
qdev_prop_set_uint32(dev, "scsi-id", unit);
+ if (bootindex >= 0) {
+ qdev_prop_set_int32(dev, "bootindex", bootindex);
+ }
if (qdev_prop_exists(dev, "removable")) {
qdev_prop_set_bit(dev, "removable", removable);
}
}
if (qdev_init(dev) < 0)
return NULL;
- return DO_UPCAST(SCSIDevice, qdev, dev);
+ return SCSI_DEVICE(dev);
}
int scsi_bus_legacy_handle_cmdline(SCSIBus *bus)
int res = 0, unit;
loc_push_none(&loc);
- for (unit = 0; unit < bus->info->ndev; unit++) {
+ for (unit = 0; unit < bus->info->max_target; unit++) {
dinfo = drive_get(IF_SCSI, bus->busnr, unit);
if (dinfo == NULL) {
continue;
}
qemu_opts_loc_restore(dinfo->opts);
- if (!scsi_bus_legacy_add_drive(bus, dinfo->bdrv, unit, false)) {
+ if (!scsi_bus_legacy_add_drive(bus, dinfo->bdrv, unit, false, -1)) {
res = -1;
break;
}
return 0;
}
-struct SCSIReqOps reqops_invalid_opcode = {
+static const struct SCSIReqOps reqops_invalid_opcode = {
.size = sizeof(SCSIRequest),
.send_command = scsi_invalid_command
};
return 0;
}
-struct SCSIReqOps reqops_unit_attention = {
+static const struct SCSIReqOps reqops_unit_attention = {
.size = sizeof(SCSIRequest),
.send_command = scsi_unit_attention
};
struct SCSITargetReq {
SCSIRequest req;
int len;
- uint8_t buf[64];
+ uint8_t buf[2056];
};
static void store_lun(uint8_t *outbuf, int lun)
static bool scsi_target_emulate_report_luns(SCSITargetReq *r)
{
- int len;
+ DeviceState *qdev;
+ int i, len, n;
+ int channel, id;
+ bool found_lun0;
+
if (r->req.cmd.xfer < 16) {
return false;
}
if (r->req.cmd.buf[2] > 2) {
return false;
}
- len = MIN(sizeof r->buf, r->req.cmd.xfer);
+ channel = r->req.dev->channel;
+ id = r->req.dev->id;
+ found_lun0 = false;
+ n = 0;
+ QTAILQ_FOREACH(qdev, &r->req.bus->qbus.children, sibling) {
+ SCSIDevice *dev = SCSI_DEVICE(qdev);
+
+ if (dev->channel == channel && dev->id == id) {
+ if (dev->lun == 0) {
+ found_lun0 = true;
+ }
+ n += 8;
+ }
+ }
+ if (!found_lun0) {
+ n += 8;
+ }
+ len = MIN(n + 8, r->req.cmd.xfer & ~7);
+ if (len > sizeof(r->buf)) {
+ /* TODO: > 256 LUNs? */
+ return false;
+ }
+
memset(r->buf, 0, len);
- if (r->req.dev->lun != 0) {
- r->buf[3] = 16;
- r->len = 24;
- store_lun(&r->buf[16], r->req.dev->lun);
- } else {
- r->buf[3] = 8;
- r->len = 16;
+ stl_be_p(&r->buf, n);
+ i = found_lun0 ? 8 : 16;
+ QTAILQ_FOREACH(qdev, &r->req.bus->qbus.children, sibling) {
+ SCSIDevice *dev = SCSI_DEVICE(qdev);
+
+ if (dev->channel == channel && dev->id == id) {
+ store_lun(&r->buf[i], dev->lun);
+ i += 8;
+ }
}
+ assert(i == n + 8);
+ r->len = len;
return true;
}
MIN(req->cmd.xfer, sizeof r->buf),
(req->cmd.buf[1] & 1) == 0);
if (r->req.dev->sense_is_ua) {
- if (r->req.dev->info->unit_attention_reported) {
- r->req.dev->info->unit_attention_reported(req->dev);
- }
+ scsi_device_unit_attention_reported(req->dev);
r->req.dev->sense_len = 0;
r->req.dev->sense_is_ua = false;
}
return r->buf;
}
-struct SCSIReqOps reqops_target_command = {
+static const struct SCSIReqOps reqops_target_command = {
.size = sizeof(SCSITargetReq),
.send_command = scsi_target_send_command,
.read_data = scsi_target_read_data,
};
-SCSIRequest *scsi_req_alloc(SCSIReqOps *reqops, SCSIDevice *d, uint32_t tag,
- uint32_t lun, void *hba_private)
+SCSIRequest *scsi_req_alloc(const SCSIReqOps *reqops, SCSIDevice *d,
+ uint32_t tag, uint32_t lun, void *hba_private)
{
SCSIRequest *req;
hba_private);
} else if (lun != d->lun ||
buf[0] == REPORT_LUNS ||
- buf[0] == REQUEST_SENSE) {
+ (buf[0] == REQUEST_SENSE && (d->sense_len || cmd.xfer < 4))) {
req = scsi_req_alloc(&reqops_target_command, d, tag, lun,
hba_private);
} else {
- req = d->info->alloc_req(d, tag, lun, hba_private);
+ req = scsi_device_alloc_req(d, tag, lun, buf, hba_private);
}
}
* Here we handle unit attention clearing for UA_INTLCK_CTRL == 00b.
*/
if (req->dev->sense_is_ua) {
- if (req->dev->info->unit_attention_reported) {
- req->dev->info->unit_attention_reported(req->dev);
- }
+ scsi_device_unit_attention_reported(req->dev);
req->dev->sense_len = 0;
req->dev->sense_is_ua = false;
}
static void scsi_req_dequeue(SCSIRequest *req)
{
trace_scsi_req_dequeue(req->dev->id, req->lun, req->tag);
+ req->retry = false;
if (req->enqueued) {
QTAILQ_REMOVE(&req->dev->requests, req, next);
req->enqueued = false;
}
}
+static int scsi_get_performance_length(int num_desc, int type, int data_type)
+{
+ /* MMC-6, paragraph 6.7. */
+ switch (type) {
+ case 0:
+ if ((data_type & 3) == 0) {
+ /* Each descriptor is as in Table 295 - Nominal performance. */
+ return 16 * num_desc + 8;
+ } else {
+ /* Each descriptor is as in Table 296 - Exceptions. */
+ return 6 * num_desc + 8;
+ }
+ case 1:
+ case 4:
+ case 5:
+ return 8 * num_desc + 8;
+ case 2:
+ return 2048 * num_desc + 8;
+ case 3:
+ return 16 * num_desc + 8;
+ default:
+ return 8;
+ }
+}
+
static int scsi_req_length(SCSICommand *cmd, SCSIDevice *dev, uint8_t *buf)
{
switch (buf[0] >> 5) {
cmd->len = 10;
break;
case 4:
- cmd->xfer = ldl_be_p(&buf[10]);
+ cmd->xfer = ldl_be_p(&buf[10]) & 0xffffffffULL;
cmd->len = 16;
break;
case 5:
- cmd->xfer = ldl_be_p(&buf[6]);
+ cmd->xfer = ldl_be_p(&buf[6]) & 0xffffffffULL;
cmd->len = 12;
break;
default:
case TEST_UNIT_READY:
case REWIND:
case START_STOP:
- case SEEK_6:
+ case SET_CAPACITY:
case WRITE_FILEMARKS:
+ case WRITE_FILEMARKS_16:
case SPACE:
case RESERVE:
case RELEASE:
case VERIFY_10:
case SEEK_10:
case SYNCHRONIZE_CACHE:
+ case SYNCHRONIZE_CACHE_16:
+ case LOCATE_16:
case LOCK_UNLOCK_CACHE:
case LOAD_UNLOAD:
case SET_CD_SPEED:
case WRITE_LONG_10:
case MOVE_MEDIUM:
case UPDATE_BLOCK:
+ case RESERVE_TRACK:
+ case SET_READ_AHEAD:
+ case PRE_FETCH:
+ case PRE_FETCH_16:
+ case ALLOW_OVERWRITE:
cmd->xfer = 0;
break;
case MODE_SENSE:
case READ_BLOCK_LIMITS:
cmd->xfer = 6;
break;
- case READ_POSITION:
- cmd->xfer = 20;
- break;
case SEND_VOLUME_TAG:
- cmd->xfer *= 40;
- break;
- case MEDIUM_SCAN:
- cmd->xfer *= 8;
+ /* GPCMD_SET_STREAMING from multimedia commands. */
+ if (dev->type == TYPE_ROM) {
+ cmd->xfer = buf[10] | (buf[9] << 8);
+ } else {
+ cmd->xfer = buf[9] | (buf[8] << 8);
+ }
break;
case WRITE_10:
case WRITE_VERIFY_10:
case READ_16:
cmd->xfer *= dev->blocksize;
break;
+ case FORMAT_UNIT:
+ /* MMC mandates the parameter list to be 12-bytes long. Parameters
+ * for block devices are restricted to the header right now. */
+ if (dev->type == TYPE_ROM && (buf[1] & 16)) {
+ cmd->xfer = 12;
+ } else {
+ cmd->xfer = (buf[1] & 16) == 0 ? 0 : (buf[1] & 32 ? 8 : 4);
+ }
+ break;
case INQUIRY:
+ case RECEIVE_DIAGNOSTIC:
+ case SEND_DIAGNOSTIC:
cmd->xfer = buf[4] | (buf[3] << 8);
break;
+ case READ_CD:
+ case READ_BUFFER:
+ case WRITE_BUFFER:
+ case SEND_CUE_SHEET:
+ cmd->xfer = buf[8] | (buf[7] << 8) | (buf[6] << 16);
+ break;
+ case PERSISTENT_RESERVE_OUT:
+ cmd->xfer = ldl_be_p(&buf[5]) & 0xffffffffULL;
+ break;
+ case ERASE_12:
+ if (dev->type == TYPE_ROM) {
+ /* MMC command GET PERFORMANCE. */
+ cmd->xfer = scsi_get_performance_length(buf[9] | (buf[8] << 8),
+ buf[10], buf[1] & 0x1f);
+ }
+ break;
+ case MECHANISM_STATUS:
+ case READ_DVD_STRUCTURE:
+ case SEND_DVD_STRUCTURE:
case MAINTENANCE_OUT:
case MAINTENANCE_IN:
if (dev->type == TYPE_ROM) {
{
switch (buf[0]) {
/* stream commands */
+ case ERASE_12:
+ case ERASE_16:
+ cmd->xfer = 0;
+ break;
case READ_6:
case READ_REVERSE:
case RECOVER_BUFFERED_DATA:
cmd->len = 6;
cmd->xfer = 0;
break;
+ case SPACE_16:
+ cmd->xfer = buf[13] | (buf[12] << 8);
+ break;
+ case READ_POSITION:
+ cmd->xfer = buf[8] | (buf[7] << 8);
+ break;
+ case FORMAT_UNIT:
+ cmd->xfer = buf[4] | (buf[3] << 8);
+ break;
/* generic commands */
default:
return scsi_req_length(cmd, dev, buf);
case SEARCH_LOW_12:
case MEDIUM_SCAN:
case SEND_VOLUME_TAG:
+ case SEND_CUE_SHEET:
+ case SEND_DVD_STRUCTURE:
case PERSISTENT_RESERVE_OUT:
case MAINTENANCE_OUT:
cmd->mode = SCSI_XFER_TO_DEV;
case 1:
case 2:
case 5:
- lba = ldl_be_p(&buf[2]);
+ lba = ldl_be_p(&buf[2]) & 0xffffffffULL;
break;
case 4:
lba = ldq_be_p(&buf[2]);
[ REASSIGN_BLOCKS ] = "REASSIGN_BLOCKS",
[ READ_6 ] = "READ_6",
[ WRITE_6 ] = "WRITE_6",
- [ SEEK_6 ] = "SEEK_6",
+ [ SET_CAPACITY ] = "SET_CAPACITY",
[ READ_REVERSE ] = "READ_REVERSE",
[ WRITE_FILEMARKS ] = "WRITE_FILEMARKS",
[ SPACE ] = "SPACE",
[ SEARCH_EQUAL ] = "SEARCH_EQUAL",
[ SEARCH_LOW ] = "SEARCH_LOW",
[ SET_LIMITS ] = "SET_LIMITS",
- [ PRE_FETCH ] = "PRE_FETCH",
+ [ PRE_FETCH ] = "PRE_FETCH/READ_POSITION",
/* READ_POSITION and PRE_FETCH use the same operation code */
[ SYNCHRONIZE_CACHE ] = "SYNCHRONIZE_CACHE",
[ LOCK_UNLOCK_CACHE ] = "LOCK_UNLOCK_CACHE",
[ WRITE_16 ] = "WRITE_16",
[ WRITE_VERIFY_16 ] = "WRITE_VERIFY_16",
[ VERIFY_16 ] = "VERIFY_16",
- [ SYNCHRONIZE_CACHE_16 ] = "SYNCHRONIZE_CACHE_16",
+ [ PRE_FETCH_16 ] = "PRE_FETCH_16",
+ [ SYNCHRONIZE_CACHE_16 ] = "SPACE_16/SYNCHRONIZE_CACHE_16",
+ /* SPACE_16 and SYNCHRONIZE_CACHE_16 use the same operation code */
[ LOCATE_16 ] = "LOCATE_16",
- [ WRITE_SAME_16 ] = "WRITE_SAME_16",
+ [ WRITE_SAME_16 ] = "ERASE_16/WRITE_SAME_16",
/* ERASE_16 and WRITE_SAME_16 use the same operation code */
[ SERVICE_ACTION_IN_16 ] = "SERVICE_ACTION_IN_16",
[ WRITE_LONG_16 ] = "WRITE_LONG_16",
[ LOAD_UNLOAD ] = "LOAD_UNLOAD",
[ READ_12 ] = "READ_12",
[ WRITE_12 ] = "WRITE_12",
+ [ ERASE_12 ] = "ERASE_12/GET_PERFORMANCE",
+ /* ERASE_12 and GET_PERFORMANCE use the same operation code */
[ SERVICE_ACTION_IN_12 ] = "SERVICE_ACTION_IN_12",
[ WRITE_VERIFY_12 ] = "WRITE_VERIFY_12",
[ VERIFY_12 ] = "VERIFY_12",
[ SEARCH_EQUAL_12 ] = "SEARCH_EQUAL_12",
[ SEARCH_LOW_12 ] = "SEARCH_LOW_12",
[ READ_ELEMENT_STATUS ] = "READ_ELEMENT_STATUS",
- [ SEND_VOLUME_TAG ] = "SEND_VOLUME_TAG",
+ [ SEND_VOLUME_TAG ] = "SEND_VOLUME_TAG/SET_STREAMING",
+ /* SEND_VOLUME_TAG and SET_STREAMING use the same operation code */
+ [ READ_CD ] = "READ_CD",
[ READ_DEFECT_DATA_12 ] = "READ_DEFECT_DATA_12",
+ [ READ_DVD_STRUCTURE ] = "READ_DVD_STRUCTURE",
+ [ RESERVE_TRACK ] = "RESERVE_TRACK",
+ [ SEND_CUE_SHEET ] = "SEND_CUE_SHEET",
+ [ SEND_DVD_STRUCTURE ] = "SEND_DVD_STRUCTURE",
[ SET_CD_SPEED ] = "SET_CD_SPEED",
+ [ SET_READ_AHEAD ] = "SET_READ_AHEAD",
+ [ ALLOW_OVERWRITE ] = "ALLOW_OVERWRITE",
+ [ MECHANISM_STATUS ] = "MECHANISM_STATUS",
};
if (cmd >= ARRAY_SIZE(names) || names[cmd] == NULL)
Once it completes, calling scsi_req_continue will restart I/O. */
void scsi_req_data(SCSIRequest *req, int len)
{
- trace_scsi_req_data(req->dev->id, req->lun, req->tag, len);
- req->bus->info->transfer_data(req, len);
+ if (req->io_canceled) {
+ trace_scsi_req_data_canceled(req->dev->id, req->lun, req->tag, len);
+ } else {
+ trace_scsi_req_data(req->dev->id, req->lun, req->tag, len);
+ req->bus->info->transfer_data(req, len);
+ }
}
void scsi_req_print(SCSIRequest *req)
void scsi_req_cancel(SCSIRequest *req)
{
- if (req->ops->cancel_io) {
- req->ops->cancel_io(req);
+ if (!req->enqueued) {
+ return;
}
scsi_req_ref(req);
scsi_req_dequeue(req);
+ req->io_canceled = true;
+ if (req->ops->cancel_io) {
+ req->ops->cancel_io(req);
+ }
if (req->bus->info->cancel) {
req->bus->info->cancel(req);
}
void scsi_req_abort(SCSIRequest *req, int status)
{
+ if (!req->enqueued) {
+ return;
+ }
+ scsi_req_ref(req);
+ scsi_req_dequeue(req);
+ req->io_canceled = true;
if (req->ops->cancel_io) {
req->ops->cancel_io(req);
}
scsi_req_complete(req, status);
+ scsi_req_unref(req);
}
void scsi_device_purge_requests(SCSIDevice *sdev, SCSISense sense)
static char *scsibus_get_fw_dev_path(DeviceState *dev)
{
- SCSIDevice *d = DO_UPCAST(SCSIDevice, qdev, dev);
- SCSIBus *bus = scsi_bus_from_device(d);
+ SCSIDevice *d = SCSI_DEVICE(dev);
char path[100];
- int i;
- for (i = 0; i < bus->info->ndev; i++) {
- if (bus->devs[i] == d) {
- break;
+ snprintf(path, sizeof(path), "channel@%x/%s@%x,%x", d->channel,
+ qdev_fw_name(dev), d->id, d->lun);
+
+ return strdup(path);
+}
+
+SCSIDevice *scsi_device_find(SCSIBus *bus, int channel, int id, int lun)
+{
+ DeviceState *qdev;
+ SCSIDevice *target_dev = NULL;
+
+ QTAILQ_FOREACH_REVERSE(qdev, &bus->qbus.children, ChildrenHead, sibling) {
+ SCSIDevice *dev = SCSI_DEVICE(qdev);
+
+ if (dev->channel == channel && dev->id == id) {
+ if (dev->lun == lun) {
+ return dev;
+ }
+ target_dev = dev;
}
}
+ return target_dev;
+}
- assert(i != bus->info->ndev);
+static void scsi_device_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *k = DEVICE_CLASS(klass);
+ k->bus_info = &scsi_bus_info;
+ k->init = scsi_qdev_init;
+ k->unplug = qdev_simple_unplug_cb;
+ k->exit = scsi_qdev_exit;
+}
- snprintf(path, sizeof(path), "%s@%x", qdev_fw_name(dev), i);
+static TypeInfo scsi_device_type_info = {
+ .name = TYPE_SCSI_DEVICE,
+ .parent = TYPE_DEVICE,
+ .instance_size = sizeof(SCSIDevice),
+ .abstract = true,
+ .class_size = sizeof(SCSIDeviceClass),
+ .class_init = scsi_device_class_init,
+};
- return strdup(path);
+static void scsi_register_devices(void)
+{
+ type_register_static(&scsi_device_type_info);
}
+
+device_init(scsi_register_devices);
projects / mirror_qemu.git / blobdiff