static CcwDevice *s390_get_ccw_device(DeviceState *dev_st)
{
CcwDevice *ccw_dev = NULL;
if (dev_st) {
VirtioCcwDevice *virtio_ccw_dev = (VirtioCcwDevice *)
object_dynamic_cast(OBJECT(qdev_get_parent_bus(dev_st)->parent),
TYPE_VIRTIO_CCW_DEVICE);
if (virtio_ccw_dev) {
ccw_dev = CCW_DEVICE(virtio_ccw_dev);
} else {
SCSIDevice *sd = (SCSIDevice *)
object_dynamic_cast(OBJECT(dev_st),
TYPE_SCSI_DEVICE);
if (sd) {
SCSIBus *bus = scsi_bus_from_device(sd);
VirtIOSCSI *vdev = container_of(bus, VirtIOSCSI, bus);
VirtIOSCSICcw *scsi_ccw = container_of(vdev, VirtIOSCSICcw,
vdev);
ccw_dev = (CcwDevice *)object_dynamic_cast(OBJECT(scsi_ccw),
TYPE_CCW_DEVICE);
}
}
}
return ccw_dev;
}
/*
* Invoke device-specific unplug handler, disable the subchannel
* (including sending a channel report to the guest) and remove the
* device from the virtual css bus.
*/
static void ccw_device_unplug(HotplugHandler *hotplug_dev,
DeviceState *dev, Error **errp)
{
CcwDevice *ccw_dev = CCW_DEVICE(dev);
CCWDeviceClass *k = CCW_DEVICE_GET_CLASS(ccw_dev);
SubchDev *sch = ccw_dev->sch;
Error *err = NULL;
if (k->unplug) {
k->unplug(hotplug_dev, dev, &err);
if (err) {
error_propagate(errp, err);
return;
}
}
/*
* We should arrive here only for device_del, since we don't support
* direct hot(un)plug of channels.
*/
assert(sch != NULL);
/* Subchannel is now disabled and no longer valid. */
sch->curr_status.pmcw.flags &= ~(PMCW_FLAGS_MASK_ENA |
PMCW_FLAGS_MASK_DNV);
css_generate_sch_crws(sch->cssid, sch->ssid, sch->schid, 1, 0);
object_unparent(OBJECT(dev));
}
static bool s390_gen_initial_iplb(S390IPLState *ipl)
{
DeviceState *dev_st;
dev_st = get_boot_device(0);
if (dev_st) {
VirtioCcwDevice *virtio_ccw_dev = (VirtioCcwDevice *)
object_dynamic_cast(OBJECT(qdev_get_parent_bus(dev_st)->parent),
TYPE_VIRTIO_CCW_DEVICE);
SCSIDevice *sd = (SCSIDevice *) object_dynamic_cast(OBJECT(dev_st),
TYPE_SCSI_DEVICE);
VirtIONet *vn = (VirtIONet *) object_dynamic_cast(OBJECT(dev_st),
TYPE_VIRTIO_NET);
if (vn) {
ipl->netboot = true;
}
if (virtio_ccw_dev) {
CcwDevice *ccw_dev = CCW_DEVICE(virtio_ccw_dev);
ipl->iplb.len = cpu_to_be32(S390_IPLB_MIN_CCW_LEN);
ipl->iplb.blk0_len =
cpu_to_be32(S390_IPLB_MIN_CCW_LEN - S390_IPLB_HEADER_LEN);
ipl->iplb.pbt = S390_IPL_TYPE_CCW;
ipl->iplb.ccw.devno = cpu_to_be16(ccw_dev->sch->devno);
ipl->iplb.ccw.ssid = ccw_dev->sch->ssid & 3;
} else if (sd) {
SCSIBus *bus = scsi_bus_from_device(sd);
VirtIOSCSI *vdev = container_of(bus, VirtIOSCSI, bus);
VirtIOSCSICcw *scsi_ccw = container_of(vdev, VirtIOSCSICcw, vdev);
CcwDevice *ccw_dev;
ccw_dev = (CcwDevice *)object_dynamic_cast(OBJECT(scsi_ccw),
TYPE_CCW_DEVICE);
if (!ccw_dev) { /* It might be a PCI device instead */
return false;
}
ipl->iplb.len = cpu_to_be32(S390_IPLB_MIN_QEMU_SCSI_LEN);
ipl->iplb.blk0_len =
cpu_to_be32(S390_IPLB_MIN_QEMU_SCSI_LEN - S390_IPLB_HEADER_LEN);
ipl->iplb.pbt = S390_IPL_TYPE_QEMU_SCSI;
ipl->iplb.scsi.lun = cpu_to_be32(sd->lun);
ipl->iplb.scsi.target = cpu_to_be16(sd->id);
ipl->iplb.scsi.channel = cpu_to_be16(sd->channel);
ipl->iplb.scsi.devno = cpu_to_be16(ccw_dev->sch->devno);
ipl->iplb.scsi.ssid = ccw_dev->sch->ssid & 3;
} else {
return false; /* unknown device */
}
if (!s390_ipl_set_loadparm(ipl->iplb.loadparm)) {
ipl->iplb.flags |= DIAG308_FLAGS_LP_VALID;
}
return true;
}
return false;
}
static char *virtual_css_bus_get_dev_path(DeviceState *dev)
{
CcwDevice *ccw_dev = CCW_DEVICE(dev);
SubchDev *sch = ccw_dev->sch;
VirtualCssBridge *bridge =
VIRTUAL_CSS_BRIDGE(qdev_get_parent_bus(dev)->parent);
/*
* We can't provide a dev path for backward compatibility on
* older machines, as it is visible in the migration stream.
*/
return bridge->css_dev_path ?
g_strdup_printf("/%02x.%1x.%04x", sch->cssid, sch->ssid, sch->devno) :
NULL;
}
struct raw3215_info *raw;
unsigned long flags;
/* Allow I/O again and flush output buffer. */
raw = dev_get_drvdata(&cdev->dev);
spin_lock_irqsave(get_ccwdev_lock(raw->cdev), flags);
raw->port.flags &= ~ASYNC_SUSPENDED;
raw->flags |= RAW3215_FLUSHING;
raw3215_try_io(raw);
raw->flags &= ~RAW3215_FLUSHING;
spin_unlock_irqrestore(get_ccwdev_lock(raw->cdev), flags);
return 0;
}
static struct ccw_device_id raw3215_id[] = {
{ CCW_DEVICE(0x3215, 0) },
{ /* end of list */ },
};
static struct ccw_driver raw3215_ccw_driver = {
.driver = {
.name = "3215",
.owner = THIS_MODULE,
},
.ids = raw3215_id,
.probe = &raw3215_probe,
.remove = &raw3215_remove,
.set_online = &raw3215_set_online,
.set_offline = &raw3215_set_offline,
.freeze = &raw3215_pm_stop,
.thaw = &raw3215_pm_start,
const char *cu3088_type[] = {
"not a channel",
"CTC/A",
"ESCON channel",
"FICON channel",
"P390 LCS card",
"OSA2 card",
"unknown channel type",
"unsupported channel type",
};
/* static definitions */
static struct ccw_device_id cu3088_ids[] = {
{ CCW_DEVICE(0x3088, 0x08), .driver_info = channel_type_parallel },
{ CCW_DEVICE(0x3088, 0x1f), .driver_info = channel_type_escon },
{ CCW_DEVICE(0x3088, 0x1e), .driver_info = channel_type_ficon },
{ CCW_DEVICE(0x3088, 0x01), .driver_info = channel_type_p390 },
{ CCW_DEVICE(0x3088, 0x60), .driver_info = channel_type_osa2 },
{ /* end of list */ }
};
static struct ccw_driver cu3088_driver;
static void
cu3088_root_dev_release (struct device *dev)
{
}
struct device cu3088_root_dev = {
