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 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 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 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 DEFINE_PROP_END_OF_LIST(), 62 }; 63 64 static void virtio_ccw_scsi_class_init(ObjectClass *klass, void *data) 65 { 66 DeviceClass *dc = DEVICE_CLASS(klass); 67 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); 68 69 k->realize = virtio_ccw_scsi_realize; 70 device_class_set_props(dc, virtio_ccw_scsi_properties); 71 set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); 72 } 73 74 static const TypeInfo virtio_ccw_scsi = { 75 .name = TYPE_VIRTIO_SCSI_CCW, 76 .parent = TYPE_VIRTIO_CCW_DEVICE, 77 .instance_size = sizeof(VirtIOSCSICcw), 78 .instance_init = virtio_ccw_scsi_instance_init, 79 .class_init = virtio_ccw_scsi_class_init, 80 }; 81 82 static void virtio_ccw_scsi_register(void) 83 { 84 type_register_static(&virtio_ccw_scsi); 85 } 86 87 type_init(virtio_ccw_scsi_register) 88