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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/virtio/virtio.h" | |
14 | #include "qapi/error.h" | |
15 | #include "virtio-ccw.h" | |
16 | ||
17 | static void virtio_ccw_scsi_realize(VirtioCcwDevice *ccw_dev, Error **errp) | |
18 | { | |
19 | VirtIOSCSICcw *dev = VIRTIO_SCSI_CCW(ccw_dev); | |
20 | DeviceState *vdev = DEVICE(&dev->vdev); | |
21 | DeviceState *qdev = DEVICE(ccw_dev); | |
22 | char *bus_name; | |
23 | ||
24 | /* | |
25 | * For command line compatibility, this sets the virtio-scsi-device bus | |
26 | * name as before. | |
27 | */ | |
28 | if (qdev->id) { | |
29 | bus_name = g_strdup_printf("%s.0", qdev->id); | |
30 | virtio_device_set_child_bus_name(VIRTIO_DEVICE(vdev), bus_name); | |
31 | g_free(bus_name); | |
32 | } | |
33 | ||
34 | qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); | |
35 | object_property_set_bool(OBJECT(vdev), true, "realized", errp); | |
36 | } | |
37 | ||
38 | static void virtio_ccw_scsi_instance_init(Object *obj) | |
39 | { | |
40 | VirtIOSCSICcw *dev = VIRTIO_SCSI_CCW(obj); | |
41 | ||
42 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), | |
43 | TYPE_VIRTIO_SCSI); | |
44 | } | |
45 | ||
46 | static Property virtio_ccw_scsi_properties[] = { | |
47 | DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, | |
48 | VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), | |
49 | DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, | |
50 | VIRTIO_CCW_MAX_REV), | |
51 | DEFINE_PROP_END_OF_LIST(), | |
52 | }; | |
53 | ||
54 | static void virtio_ccw_scsi_class_init(ObjectClass *klass, void *data) | |
55 | { | |
56 | DeviceClass *dc = DEVICE_CLASS(klass); | |
57 | VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); | |
58 | ||
59 | k->realize = virtio_ccw_scsi_realize; | |
60 | dc->props = virtio_ccw_scsi_properties; | |
61 | set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); | |
62 | } | |
63 | ||
64 | static const TypeInfo virtio_ccw_scsi = { | |
65 | .name = TYPE_VIRTIO_SCSI_CCW, | |
66 | .parent = TYPE_VIRTIO_CCW_DEVICE, | |
67 | .instance_size = sizeof(VirtIOSCSICcw), | |
68 | .instance_init = virtio_ccw_scsi_instance_init, | |
69 | .class_init = virtio_ccw_scsi_class_init, | |
70 | }; | |
71 | ||
72 | #ifdef CONFIG_VHOST_SCSI | |
73 | ||
74 | static void vhost_ccw_scsi_realize(VirtioCcwDevice *ccw_dev, Error **errp) | |
75 | { | |
76 | VHostSCSICcw *dev = VHOST_SCSI_CCW(ccw_dev); | |
77 | DeviceState *vdev = DEVICE(&dev->vdev); | |
78 | ||
79 | qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); | |
80 | object_property_set_bool(OBJECT(vdev), true, "realized", errp); | |
81 | } | |
82 | ||
83 | static void vhost_ccw_scsi_instance_init(Object *obj) | |
84 | { | |
85 | VHostSCSICcw *dev = VHOST_SCSI_CCW(obj); | |
86 | ||
87 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), | |
88 | TYPE_VHOST_SCSI); | |
89 | } | |
90 | ||
91 | static Property vhost_ccw_scsi_properties[] = { | |
92 | DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, | |
93 | VIRTIO_CCW_MAX_REV), | |
94 | DEFINE_PROP_END_OF_LIST(), | |
95 | }; | |
96 | ||
97 | static void vhost_ccw_scsi_class_init(ObjectClass *klass, void *data) | |
98 | { | |
99 | DeviceClass *dc = DEVICE_CLASS(klass); | |
100 | VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); | |
101 | ||
102 | k->realize = vhost_ccw_scsi_realize; | |
103 | dc->props = vhost_ccw_scsi_properties; | |
104 | set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); | |
105 | } | |
106 | ||
107 | static const TypeInfo vhost_ccw_scsi = { | |
108 | .name = TYPE_VHOST_SCSI_CCW, | |
109 | .parent = TYPE_VIRTIO_CCW_DEVICE, | |
110 | .instance_size = sizeof(VHostSCSICcw), | |
111 | .instance_init = vhost_ccw_scsi_instance_init, | |
112 | .class_init = vhost_ccw_scsi_class_init, | |
113 | }; | |
114 | ||
115 | #endif | |
116 | ||
117 | static void virtio_ccw_scsi_register(void) | |
118 | { | |
119 | type_register_static(&virtio_ccw_scsi); | |
120 | #ifdef CONFIG_VHOST_SCSI | |
121 | type_register_static(&vhost_ccw_scsi); | |
122 | #endif | |
123 | } | |
124 | ||
125 | type_init(virtio_ccw_scsi_register) |