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 18 static 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 39 static 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 47 static 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 55 static 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 65 static 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 75 static 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 84 static 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 92 static 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 98 static 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 } 107 108 static 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 117 118 static 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 } 125 126 type_init(virtio_ccw_scsi_register) 127