1/*
2 * virtio ccw scsi implementation
3 *
4 * Copyright 2012, 2015 IBM Corp.
5 * Author(s): Cornelia Huck <cornelia.huck@de.ibm.com>
6 *
7 * This work is licensed under the terms of the GNU GPL, version 2 or (at
8 * your option) any later version. See the COPYING file in the top-level
9 * directory.
10 */
11
12#include "qemu/osdep.h"
13#include "hw/qdev-properties.h"
14#include "hw/virtio/virtio.h"
15#include "qapi/error.h"
16#include "qemu/module.h"
17#include "virtio-ccw.h"
18
19static void virtio_ccw_scsi_realize(VirtioCcwDevice *ccw_dev, Error **errp)
20{
21 VirtIOSCSICcw *dev = VIRTIO_SCSI_CCW(ccw_dev);
22 DeviceState *vdev = DEVICE(&dev->vdev);
23 DeviceState *qdev = DEVICE(ccw_dev);
24 char *bus_name;
25
26 /*
27 * For command line compatibility, this sets the virtio-scsi-device bus
28 * name as before.
29 */
30 if (qdev->id) {
31 bus_name = g_strdup_printf("%s.0", qdev->id);
32 virtio_device_set_child_bus_name(VIRTIO_DEVICE(vdev), bus_name);
33 g_free(bus_name);
34 }
35
36 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus));
37 object_property_set_bool(OBJECT(vdev), true, "realized", errp);
38}
39
40static void virtio_ccw_scsi_instance_init(Object *obj)
41{
42 VirtIOSCSICcw *dev = VIRTIO_SCSI_CCW(obj);
43
44 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
45 TYPE_VIRTIO_SCSI);
46}
47
48static Property virtio_ccw_scsi_properties[] = {
49 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags,
50 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true),
51 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
52 VIRTIO_CCW_MAX_REV),
53 DEFINE_PROP_END_OF_LIST(),
54};
55
56static void virtio_ccw_scsi_class_init(ObjectClass *klass, void *data)
57{
58 DeviceClass *dc = DEVICE_CLASS(klass);
59 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
60
61 k->realize = virtio_ccw_scsi_realize;
62 dc->props = virtio_ccw_scsi_properties;
63 set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
64}
65
66static const TypeInfo virtio_ccw_scsi = {
67 .name = TYPE_VIRTIO_SCSI_CCW,
68 .parent = TYPE_VIRTIO_CCW_DEVICE,
69 .instance_size = sizeof(VirtIOSCSICcw),
70 .instance_init = virtio_ccw_scsi_instance_init,
71 .class_init = virtio_ccw_scsi_class_init,
72};
73
74#ifdef CONFIG_VHOST_SCSI
75
76static void vhost_ccw_scsi_realize(VirtioCcwDevice *ccw_dev, Error **errp)
77{
78 VHostSCSICcw *dev = VHOST_SCSI_CCW(ccw_dev);
79 DeviceState *vdev = DEVICE(&dev->vdev);
80
81 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus));
82 object_property_set_bool(OBJECT(vdev), true, "realized", errp);
83}
84
85static void vhost_ccw_scsi_instance_init(Object *obj)
86{
87 VHostSCSICcw *dev = VHOST_SCSI_CCW(obj);
88
89 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
90 TYPE_VHOST_SCSI);
91}
92
93static Property vhost_ccw_scsi_properties[] = {
94 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
95 VIRTIO_CCW_MAX_REV),
96 DEFINE_PROP_END_OF_LIST(),
97};
98
99static void vhost_ccw_scsi_class_init(ObjectClass *klass, void *data)
100{
101 DeviceClass *dc = DEVICE_CLASS(klass);
102 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
103
104 k->realize = vhost_ccw_scsi_realize;
105 dc->props = vhost_ccw_scsi_properties;
106 set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
107}
108
109static const TypeInfo vhost_ccw_scsi = {
110 .name = TYPE_VHOST_SCSI_CCW,
111 .parent = TYPE_VIRTIO_CCW_DEVICE,
112 .instance_size = sizeof(VHostSCSICcw),
113 .instance_init = vhost_ccw_scsi_instance_init,
114 .class_init = vhost_ccw_scsi_class_init,
115};
116
117#endif
118
119static void virtio_ccw_scsi_register(void)
120{
121 type_register_static(&virtio_ccw_scsi);
122#ifdef CONFIG_VHOST_SCSI
123 type_register_static(&vhost_ccw_scsi);
124#endif
125}
126
127type_init(virtio_ccw_scsi_register)
128