LXR qemu/hw/s390x/virtio-ccw-scsi.c

   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