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s390x/css: Unplug handler of virtual css bridge 

The previous patch moved virtual css bridge and bus out from
virtio-ccw, but kept the direct reference of virtio-ccw specific
unplug function inside css-bridge.c.

To make the virtual css bus and bridge useful for non-virtio devices,
this introduces a common unplug function pointer "unplug" to call
specific virtio-ccw unplug parts. Thus, the tight coupling to
virtio-ccw can be removed.

This unplug pointer is a member of CCWDeviceClass, which is introduced
as an abstract device layer called "ccw-device". This layer is between
DeviceState and specific devices which are plugged in virtual css bus,
like virtio-ccw device. The specific unplug handlers should be assigned
to "unplug" during initialization.

Signed-off-by: Jing Liu <liujbjl@linux.vnet.ibm.com>
Reviewed-by: Sascha Silbe <silbe@linux.vnet.ibm.com>
Reviewed-by: Dong Jia Shi <bjsdjshi@linux.vnet.ibm.com>
Reviewed-by: Yi Min Zhao <zyimin@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
This commit is contained in:
Jing Liu 2016-02-26 06:46:12 +01:00 committed by Cornelia Huck
parent dd70bd0d4c
commit b804e8a62a
7 changed files with 164 additions and 57 deletions
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1
hw/s390x/Makefile.objs
View File

@ -9,6 +9,7 @@ obj-y += css.o
obj-y += s390-virtio-ccw.o
obj-y += virtio-ccw.o
obj-y += css-bridge.o
obj-y += ccw-device.o
obj-y += s390-pci-bus.o s390-pci-inst.o
obj-y += s390-skeys.o
obj-$(CONFIG_KVM) += s390-skeys-kvm.o

27
hw/s390x/ccw-device.c Normal file
View File

@ -0,0 +1,27 @@
/*
* Common device infrastructure for devices in the virtual css
*
* Copyright 2016 IBM Corp.
* Author(s): Jing Liu <liujbjl@linux.vnet.ibm.com>
*
* This work is licensed under the terms of the GNU GPL, version 2 or (at
* your option) any later version. See the COPYING file in the top-level
* directory.
*/
#include "qemu/osdep.h"
#include "ccw-device.h"
static const TypeInfo ccw_device_info = {
.name = TYPE_CCW_DEVICE,
.parent = TYPE_DEVICE,
.instance_size = sizeof(CcwDevice),
.class_size = sizeof(CCWDeviceClass),
.abstract = true,
};
static void ccw_device_register(void)
{
type_register_static(&ccw_device_info);
}
type_init(ccw_device_register)

43
hw/s390x/ccw-device.h Normal file
View File

@ -0,0 +1,43 @@
/*
* Common device infrastructure for devices in the virtual css
*
* Copyright 2016 IBM Corp.
* Author(s): Jing Liu <liujbjl@linux.vnet.ibm.com>
*
* This work is licensed under the terms of the GNU GPL, version 2 or (at
* your option) any later version. See the COPYING file in the top-level
* directory.
*/
#ifndef HW_S390X_CCW_DEVICE_H
#define HW_S390X_CCW_DEVICE_H
#include "qom/object.h"
#include "hw/qdev-core.h"
#include "hw/s390x/css.h"
typedef struct CcwDevice {
DeviceState parent_obj;
SubchDev *sch;
/* <cssid>.<ssid>.<device number> */
CssDevId bus_id;
} CcwDevice;
typedef struct CCWDeviceClass {
DeviceClass parent_class;
void (*unplug)(HotplugHandler *, DeviceState *, Error **);
} CCWDeviceClass;
static inline CcwDevice *to_ccw_dev_fast(DeviceState *d)
{
return container_of(d, CcwDevice, parent_obj);
}
#define TYPE_CCW_DEVICE "ccw-device"
#define CCW_DEVICE(obj) OBJECT_CHECK(CcwDevice, (obj), TYPE_CCW_DEVICE)
#define CCW_DEVICE_GET_CLASS(obj) \
OBJECT_GET_CLASS(CCWDeviceClass, (obj), TYPE_CCW_DEVICE)
#define CCW_DEVICE_CLASS(klass) \
OBJECT_CLASS_CHECK(CCWDeviceClass, (klass), TYPE_CCW_DEVICE)
#endif

39
hw/s390x/css-bridge.c
View File

@ -11,13 +11,48 @@
*/
#include "qemu/osdep.h"
#include "qapi/error.h"
#include "virtio-ccw.h"
#include "hw/hotplug.h"
#include "hw/sysbus.h"
#include "qemu/bitops.h"
#include "hw/s390x/css.h"
#include "ccw-device.h"
#include "hw/s390x/css-bridge.h"
/*
* 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 void virtual_css_bus_reset(BusState *qbus)
{
/* This should actually be modelled via the generic css */
@ -65,7 +100,7 @@ static void virtual_css_bridge_class_init(ObjectClass *klass, void *data)
HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(klass);
DeviceClass *dc = DEVICE_CLASS(klass);
hc->unplug = virtio_ccw_busdev_unplug;
hc->unplug = ccw_device_unplug;
set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
}

14
hw/s390x/ipl.c
View File

@ -221,12 +221,14 @@ static bool s390_gen_initial_iplb(S390IPLState *ipl)
dev_st = get_boot_device(0);
if (dev_st) {
VirtioCcwDevice *ccw_dev = (VirtioCcwDevice *) object_dynamic_cast(
OBJECT(qdev_get_parent_bus(dev_st)->parent),
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);
if (ccw_dev) {
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);
@ -238,7 +240,7 @@ static bool s390_gen_initial_iplb(S390IPLState *ipl)
SCSIBus *bus = scsi_bus_from_device(sd);
VirtIOSCSI *vdev = container_of(bus, VirtIOSCSI, bus);
VirtIOSCSICcw *scsi_ccw = container_of(vdev, VirtIOSCSICcw, vdev);
VirtioCcwDevice *ccw = &scsi_ccw->parent_obj;
CcwDevice *ccw_dev = CCW_DEVICE(scsi_ccw);
ipl->iplb.len = cpu_to_be32(S390_IPLB_MIN_QEMU_SCSI_LEN);
ipl->iplb.blk0_len =
@ -247,8 +249,8 @@ static bool s390_gen_initial_iplb(S390IPLState *ipl)
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->sch->devno);
ipl->iplb.scsi.ssid = ccw->sch->ssid & 3;
ipl->iplb.scsi.devno = cpu_to_be16(ccw_dev->sch->devno);
ipl->iplb.scsi.ssid = ccw_dev->sch->ssid & 3;
return true;
}
}

86
hw/s390x/virtio-ccw.c
View File

@ -97,7 +97,8 @@ static int virtio_ccw_ioeventfd_assign(DeviceState *d, EventNotifier *notifier,
int n, bool assign)
{
VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
SubchDev *sch = dev->sch;
CcwDevice *ccw_dev = CCW_DEVICE(dev);
SubchDev *sch = ccw_dev->sch;
uint32_t sch_id = (css_build_subchannel_id(sch) << 16) | sch->schid;
return s390_assign_subch_ioeventfd(notifier, sch_id, n, assign);
@ -194,6 +195,8 @@ static int virtio_ccw_set_vqs(SubchDev *sch, VqInfoBlock *info,
static void virtio_ccw_reset_virtio(VirtioCcwDevice *dev, VirtIODevice *vdev)
{
CcwDevice *ccw_dev = CCW_DEVICE(dev);
virtio_ccw_stop_ioeventfd(dev);
virtio_reset(vdev);
if (dev->indicators) {
@ -208,7 +211,7 @@ static void virtio_ccw_reset_virtio(VirtioCcwDevice *dev, VirtIODevice *vdev)
release_indicator(&dev->routes.adapter, dev->summary_indicator);
dev->summary_indicator = NULL;
}
dev->sch->thinint_active = false;
ccw_dev->sch->thinint_active = false;
}
static int virtio_ccw_handle_set_vq(SubchDev *sch, CCW1 ccw, bool check_len,
@ -664,7 +667,8 @@ static void virtio_sch_disable_cb(SubchDev *sch)
static void virtio_ccw_device_realize(VirtioCcwDevice *dev, Error **errp)
{
VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_GET_CLASS(dev);
SubchDev *sch = css_create_virtual_sch(dev->bus_id, errp);
CcwDevice *ccw_dev = CCW_DEVICE(dev);
SubchDev *sch = css_create_virtual_sch(ccw_dev->bus_id, errp);
Error *err = NULL;
if (!sch) {
@ -676,14 +680,14 @@ static void virtio_ccw_device_realize(VirtioCcwDevice *dev, Error **errp)
sch->disable_cb = virtio_sch_disable_cb;
sch->id.reserved = 0xff;
sch->id.cu_type = VIRTIO_CCW_CU_TYPE;
dev->sch = sch;
ccw_dev->sch = sch;
dev->indicators = NULL;
dev->revision = -1;
css_sch_build_virtual_schib(sch, 0, VIRTIO_CCW_CHPID_TYPE);
trace_virtio_ccw_new_device(
sch->cssid, sch->ssid, sch->schid, sch->devno,
dev->bus_id.valid ? "user-configured" : "auto-configured");
ccw_dev->bus_id.valid ? "user-configured" : "auto-configured");
if (k->realize) {
k->realize(dev, &err);
@ -691,14 +695,15 @@ static void virtio_ccw_device_realize(VirtioCcwDevice *dev, Error **errp)
if (err) {
error_propagate(errp, err);
css_subch_assign(sch->cssid, sch->ssid, sch->schid, sch->devno, NULL);
dev->sch = NULL;
ccw_dev->sch = NULL;
g_free(sch);
}
}
static int virtio_ccw_exit(VirtioCcwDevice *dev)
{
SubchDev *sch = dev->sch;
CcwDevice *ccw_dev = CCW_DEVICE(dev);
SubchDev *sch = ccw_dev->sch;
if (sch) {
css_subch_assign(sch->cssid, sch->ssid, sch->schid, sch->devno, NULL);
@ -879,7 +884,9 @@ static void virtio_ccw_rng_realize(VirtioCcwDevice *ccw_dev, Error **errp)
*/
static inline VirtioCcwDevice *to_virtio_ccw_dev_fast(DeviceState *d)
{
return container_of(d, VirtioCcwDevice, parent_obj);
CcwDevice *ccw_dev = to_ccw_dev_fast(d);
return container_of(ccw_dev, VirtioCcwDevice, parent_obj);
}
static uint8_t virtio_set_ind_atomic(SubchDev *sch, uint64_t ind_loc,
@ -908,7 +915,8 @@ static uint8_t virtio_set_ind_atomic(SubchDev *sch, uint64_t ind_loc,
static void virtio_ccw_notify(DeviceState *d, uint16_t vector)
{
VirtioCcwDevice *dev = to_virtio_ccw_dev_fast(d);
SubchDev *sch = dev->sch;
CcwDevice *ccw_dev = to_ccw_dev_fast(d);
SubchDev *sch = ccw_dev->sch;
uint64_t indicators;
/* queue indicators + secondary indicators */
@ -966,9 +974,10 @@ static void virtio_ccw_reset(DeviceState *d)
{
VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
VirtIODevice *vdev = virtio_bus_get_device(&dev->bus);
CcwDevice *ccw_dev = CCW_DEVICE(d);
virtio_ccw_reset_virtio(dev, vdev);
css_reset_sch(dev->sch);
css_reset_sch(ccw_dev->sch);
}
static void virtio_ccw_vmstate_change(DeviceState *d, bool running)
@ -984,7 +993,7 @@ static void virtio_ccw_vmstate_change(DeviceState *d, bool running)
static bool virtio_ccw_query_guest_notifiers(DeviceState *d)
{
VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
CcwDevice *dev = CCW_DEVICE(d);
return !!(dev->sch->curr_status.pmcw.flags & PMCW_FLAGS_MASK_ENA);
}
@ -992,8 +1001,9 @@ static bool virtio_ccw_query_guest_notifiers(DeviceState *d)
static int virtio_ccw_get_mappings(VirtioCcwDevice *dev)
{
int r;
CcwDevice *ccw_dev = CCW_DEVICE(dev);
if (!dev->sch->thinint_active) {
if (!ccw_dev->sch->thinint_active) {
return -EINVAL;
}
@ -1115,7 +1125,8 @@ static int virtio_ccw_set_guest_notifiers(DeviceState *d, int nvqs,
{
VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
VirtIODevice *vdev = virtio_bus_get_device(&dev->bus);
bool with_irqfd = dev->sch->thinint_active && kvm_irqfds_enabled();
CcwDevice *ccw_dev = CCW_DEVICE(d);
bool with_irqfd = ccw_dev->sch->thinint_active && kvm_irqfds_enabled();
int r, n;
if (with_irqfd && assigned) {
@ -1174,7 +1185,8 @@ static int virtio_ccw_load_queue(DeviceState *d, int n, QEMUFile *f)
static void virtio_ccw_save_config(DeviceState *d, QEMUFile *f)
{
VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
SubchDev *s = dev->sch;
CcwDevice *ccw_dev = CCW_DEVICE(d);
SubchDev *s = ccw_dev->sch;
VirtIODevice *vdev = virtio_ccw_get_vdev(s);
subch_device_save(s, f);
@ -1208,7 +1220,8 @@ static void virtio_ccw_save_config(DeviceState *d, QEMUFile *f)
static int virtio_ccw_load_config(DeviceState *d, QEMUFile *f)
{
VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
SubchDev *s = dev->sch;
CcwDevice *ccw_dev = CCW_DEVICE(d);
SubchDev *s = ccw_dev->sch;
VirtIODevice *vdev = virtio_ccw_get_vdev(s);
int len;
@ -1253,7 +1266,8 @@ static void virtio_ccw_device_plugged(DeviceState *d, Error **errp)
{
VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
VirtIODevice *vdev = virtio_bus_get_device(&dev->bus);
SubchDev *sch = dev->sch;
CcwDevice *ccw_dev = CCW_DEVICE(d);
SubchDev *sch = ccw_dev->sch;
int n = virtio_get_num_queues(vdev);
if (virtio_get_num_queues(vdev) > VIRTIO_CCW_QUEUE_MAX) {
@ -1297,7 +1311,7 @@ static void virtio_ccw_device_unplugged(DeviceState *d)
/**************** Virtio-ccw Bus Device Descriptions *******************/
static Property virtio_ccw_net_properties[] = {
DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, bus_id),
DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, parent_obj.bus_id),
DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags,
VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true),
DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
@ -1326,7 +1340,7 @@ static const TypeInfo virtio_ccw_net = {
};
static Property virtio_ccw_blk_properties[] = {
DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, bus_id),
DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, parent_obj.bus_id),
DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags,
VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true),
DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
@ -1355,7 +1369,7 @@ static const TypeInfo virtio_ccw_blk = {
};
static Property virtio_ccw_serial_properties[] = {
DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, bus_id),
DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, parent_obj.bus_id),
DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags,
VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true),
DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
@ -1384,7 +1398,7 @@ static const TypeInfo virtio_ccw_serial = {
};
static Property virtio_ccw_balloon_properties[] = {
DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, bus_id),
DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, parent_obj.bus_id),
DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags,
VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true),
DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
@ -1413,7 +1427,7 @@ static const TypeInfo virtio_ccw_balloon = {
};
static Property virtio_ccw_scsi_properties[] = {
DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, bus_id),
DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, parent_obj.bus_id),
DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags,
VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true),
DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
@ -1443,7 +1457,7 @@ static const TypeInfo virtio_ccw_scsi = {
#ifdef CONFIG_VHOST_SCSI
static Property vhost_ccw_scsi_properties[] = {
DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, bus_id),
DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, parent_obj.bus_id),
DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
VIRTIO_CCW_MAX_REV),
DEFINE_PROP_END_OF_LIST(),
@ -1481,7 +1495,7 @@ static void virtio_ccw_rng_instance_init(Object *obj)
}
static Property virtio_ccw_rng_properties[] = {
DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, bus_id),
DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, parent_obj.bus_id),
DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags,
VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true),
DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
@ -1525,32 +1539,20 @@ static int virtio_ccw_busdev_exit(DeviceState *dev)
return _info->exit(_dev);
}
void virtio_ccw_busdev_unplug(HotplugHandler *hotplug_dev,
DeviceState *dev, Error **errp)
static void virtio_ccw_busdev_unplug(HotplugHandler *hotplug_dev,
DeviceState *dev, Error **errp)
{
VirtioCcwDevice *_dev = (VirtioCcwDevice *)dev;
SubchDev *sch = _dev->sch;
VirtioCcwDevice *_dev = to_virtio_ccw_dev_fast(dev);
virtio_ccw_stop_ioeventfd(_dev);
/*
* We should arrive here only for device_del, since we don't support
* direct hot(un)plug of channels, but only through virtio.
*/
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 void virtio_ccw_device_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
CCWDeviceClass *k = CCW_DEVICE_CLASS(dc);
k->unplug = virtio_ccw_busdev_unplug;
dc->realize = virtio_ccw_busdev_realize;
dc->exit = virtio_ccw_busdev_exit;
dc->bus_type = TYPE_VIRTUAL_CSS_BUS;
@ -1558,7 +1560,7 @@ static void virtio_ccw_device_class_init(ObjectClass *klass, void *data)
static const TypeInfo virtio_ccw_device_info = {
.name = TYPE_VIRTIO_CCW_DEVICE,
.parent = TYPE_DEVICE,
.parent = TYPE_CCW_DEVICE,
.instance_size = sizeof(VirtioCcwDevice),
.class_init = virtio_ccw_device_class_init,
.class_size = sizeof(VirtIOCCWDeviceClass),
@ -1610,7 +1612,7 @@ static const TypeInfo virtio_ccw_bus_info = {
#ifdef CONFIG_VIRTFS
static Property virtio_ccw_9p_properties[] = {
DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, bus_id),
DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, parent_obj.bus_id),
DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags,
VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true),
DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,

11
hw/s390x/virtio-ccw.h
View File

@ -26,6 +26,8 @@
#include <hw/s390x/s390_flic.h>
#include <hw/s390x/css.h>
#include "ccw-device.h"
#include "hw/s390x/css-bridge.h"
#define VIRTIO_CCW_CU_TYPE 0x3832
#define VIRTIO_CCW_CHPID_TYPE 0x32
@ -65,7 +67,7 @@ typedef struct VirtioBusClass VirtioCcwBusClass;
typedef struct VirtioCcwDevice VirtioCcwDevice;
typedef struct VirtIOCCWDeviceClass {
DeviceClass parent_class;
CCWDeviceClass parent_class;
void (*realize)(VirtioCcwDevice *dev, Error **errp);
int (*exit)(VirtioCcwDevice *dev);
} VirtIOCCWDeviceClass;
@ -76,9 +78,7 @@ typedef struct VirtIOCCWDeviceClass {
#define VIRTIO_CCW_FLAG_USE_IOEVENTFD (1 << VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT)
struct VirtioCcwDevice {
DeviceState parent_obj;
SubchDev *sch;
CssDevId bus_id;
CcwDevice parent_obj;
int revision;
uint32_t max_rev;
VirtioBusState bus;
@ -101,9 +101,6 @@ static inline int virtio_ccw_rev_max(VirtioCcwDevice *dev)
return dev->max_rev;
}
void virtio_ccw_busdev_unplug(HotplugHandler *hotplug_dev,
DeviceState *dev, Error **errp);
/* virtio-scsi-ccw */
#define TYPE_VIRTIO_SCSI_CCW "virtio-scsi-ccw"