| /* |
| * Vhost scsi PCI bindings |
| * |
| * Copyright IBM, Corp. 2011 |
| * |
| * Authors: |
| * Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> |
| * |
| * Changes for QEMU mainline + tcm_vhost kernel upstream: |
| * Nicholas Bellinger <nab@risingtidesystems.com> |
| * |
| * This work is licensed under the terms of the GNU LGPL, version 2 or later. |
| * See the COPYING.LIB file in the top-level directory. |
| * |
| */ |
| |
| #include "qemu/osdep.h" |
| |
| #include "standard-headers/linux/virtio_pci.h" |
| #include "hw/virtio/vhost-scsi.h" |
| #include "qapi/error.h" |
| #include "qemu/module.h" |
| #include "virtio-pci.h" |
| |
| typedef struct VHostSCSIPCI VHostSCSIPCI; |
| |
| /* |
| * vhost-scsi-pci: This extends VirtioPCIProxy. |
| */ |
| #define TYPE_VHOST_SCSI_PCI "vhost-scsi-pci-base" |
| #define VHOST_SCSI_PCI(obj) \ |
| OBJECT_CHECK(VHostSCSIPCI, (obj), TYPE_VHOST_SCSI_PCI) |
| |
| struct VHostSCSIPCI { |
| VirtIOPCIProxy parent_obj; |
| VHostSCSI vdev; |
| }; |
| |
| static Property vhost_scsi_pci_properties[] = { |
| DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, |
| DEV_NVECTORS_UNSPECIFIED), |
| DEFINE_PROP_END_OF_LIST(), |
| }; |
| |
| static void vhost_scsi_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp) |
| { |
| VHostSCSIPCI *dev = VHOST_SCSI_PCI(vpci_dev); |
| DeviceState *vdev = DEVICE(&dev->vdev); |
| VirtIOSCSICommon *vs = VIRTIO_SCSI_COMMON(vdev); |
| |
| if (vpci_dev->nvectors == DEV_NVECTORS_UNSPECIFIED) { |
| vpci_dev->nvectors = vs->conf.num_queues + 3; |
| } |
| |
| qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus)); |
| object_property_set_bool(OBJECT(vdev), true, "realized", errp); |
| } |
| |
| static void vhost_scsi_pci_class_init(ObjectClass *klass, void *data) |
| { |
| DeviceClass *dc = DEVICE_CLASS(klass); |
| VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass); |
| PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass); |
| k->realize = vhost_scsi_pci_realize; |
| set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); |
| dc->props = vhost_scsi_pci_properties; |
| pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET; |
| pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_SCSI; |
| pcidev_k->revision = 0x00; |
| pcidev_k->class_id = PCI_CLASS_STORAGE_SCSI; |
| } |
| |
| static void vhost_scsi_pci_instance_init(Object *obj) |
| { |
| VHostSCSIPCI *dev = VHOST_SCSI_PCI(obj); |
| |
| virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), |
| TYPE_VHOST_SCSI); |
| object_property_add_alias(obj, "bootindex", OBJECT(&dev->vdev), |
| "bootindex", &error_abort); |
| } |
| |
| static const VirtioPCIDeviceTypeInfo vhost_scsi_pci_info = { |
| .base_name = TYPE_VHOST_SCSI_PCI, |
| .generic_name = "vhost-scsi-pci", |
| .transitional_name = "vhost-scsi-pci-transitional", |
| .non_transitional_name = "vhost-scsi-pci-non-transitional", |
| .instance_size = sizeof(VHostSCSIPCI), |
| .instance_init = vhost_scsi_pci_instance_init, |
| .class_init = vhost_scsi_pci_class_init, |
| }; |
| |
| static void vhost_scsi_pci_register(void) |
| { |
| virtio_pci_types_register(&vhost_scsi_pci_info); |
| } |
| |
| type_init(vhost_scsi_pci_register) |