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 #include "hw/virtio/virtio-scsi.h"
19
20 #define TYPE_VIRTIO_SCSI_CCW "virtio-scsi-ccw"
21 OBJECT_DECLARE_SIMPLE_TYPE(VirtIOSCSICcw, VIRTIO_SCSI_CCW)
22
23 struct VirtIOSCSICcw {
24 VirtioCcwDevice parent_obj;
25 VirtIOSCSI vdev;
26 };
27
virtio_ccw_scsi_realize(VirtioCcwDevice * ccw_dev,Error ** errp)28 static void virtio_ccw_scsi_realize(VirtioCcwDevice *ccw_dev, Error **errp)
29 {
30 VirtIOSCSICcw *dev = VIRTIO_SCSI_CCW(ccw_dev);
31 DeviceState *vdev = DEVICE(&dev->vdev);
32 DeviceState *qdev = DEVICE(ccw_dev);
33 char *bus_name;
34
35 /*
36 * For command line compatibility, this sets the virtio-scsi-device bus
37 * name as before.
38 */
39 if (qdev->id) {
40 bus_name = g_strdup_printf("%s.0", qdev->id);
41 virtio_device_set_child_bus_name(VIRTIO_DEVICE(vdev), bus_name);
42 g_free(bus_name);
43 }
44
45 qdev_realize(vdev, BUS(&ccw_dev->bus), errp);
46 }
47
virtio_ccw_scsi_instance_init(Object * obj)48 static void virtio_ccw_scsi_instance_init(Object *obj)
49 {
50 VirtIOSCSICcw *dev = VIRTIO_SCSI_CCW(obj);
51
52 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
53 TYPE_VIRTIO_SCSI);
54 }
55
56 static const Property virtio_ccw_scsi_properties[] = {
57 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags,
58 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true),
59 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
60 VIRTIO_CCW_MAX_REV),
61 };
62
virtio_ccw_scsi_class_init(ObjectClass * klass,const void * data)63 static void virtio_ccw_scsi_class_init(ObjectClass *klass, const void *data)
64 {
65 DeviceClass *dc = DEVICE_CLASS(klass);
66 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
67
68 k->realize = virtio_ccw_scsi_realize;
69 device_class_set_props(dc, virtio_ccw_scsi_properties);
70 set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
71 }
72
73 static const TypeInfo virtio_ccw_scsi = {
74 .name = TYPE_VIRTIO_SCSI_CCW,
75 .parent = TYPE_VIRTIO_CCW_DEVICE,
76 .instance_size = sizeof(VirtIOSCSICcw),
77 .instance_init = virtio_ccw_scsi_instance_init,
78 .class_init = virtio_ccw_scsi_class_init,
79 };
80
virtio_ccw_scsi_register(void)81 static void virtio_ccw_scsi_register(void)
82 {
83 type_register_static(&virtio_ccw_scsi);
84 }
85
86 type_init(virtio_ccw_scsi_register)
87