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 19 static 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_realize(vdev, BUS(&ccw_dev->bus), 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 device_class_set_props(dc, 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_realize(vdev, BUS(&ccw_dev->bus), errp); 81 } 82 83 static void vhost_ccw_scsi_instance_init(Object *obj) 84 { 85 VHostSCSICcw *dev = VHOST_SCSI_CCW(obj); 86 87 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 88 TYPE_VHOST_SCSI); 89 } 90 91 static Property vhost_ccw_scsi_properties[] = { 92 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, 93 VIRTIO_CCW_MAX_REV), 94 DEFINE_PROP_END_OF_LIST(), 95 }; 96 97 static void vhost_ccw_scsi_class_init(ObjectClass *klass, void *data) 98 { 99 DeviceClass *dc = DEVICE_CLASS(klass); 100 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); 101 102 k->realize = vhost_ccw_scsi_realize; 103 device_class_set_props(dc, vhost_ccw_scsi_properties); 104 set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); 105 } 106 107 static const TypeInfo vhost_ccw_scsi = { 108 .name = TYPE_VHOST_SCSI_CCW, 109 .parent = TYPE_VIRTIO_CCW_DEVICE, 110 .instance_size = sizeof(VHostSCSICcw), 111 .instance_init = vhost_ccw_scsi_instance_init, 112 .class_init = vhost_ccw_scsi_class_init, 113 }; 114 115 #endif 116 117 static void virtio_ccw_scsi_register(void) 118 { 119 type_register_static(&virtio_ccw_scsi); 120 #ifdef CONFIG_VHOST_SCSI 121 type_register_static(&vhost_ccw_scsi); 122 #endif 123 } 124 125 type_init(virtio_ccw_scsi_register) 126