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