2 * Vhost scsi PCI bindings
4 * Copyright IBM, Corp. 2011
7 * Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
9 * Changes for QEMU mainline + tcm_vhost kernel upstream:
10 * Nicholas Bellinger <nab@risingtidesystems.com>
12 * This work is licensed under the terms of the GNU LGPL, version 2 or later.
13 * See the COPYING.LIB file in the top-level directory.
17 #include "qemu/osdep.h"
19 #include "standard-headers/linux/virtio_pci.h"
20 #include "hw/virtio/vhost-scsi.h"
21 #include "qapi/error.h"
22 #include "virtio-pci.h"
24 typedef struct VHostSCSIPCI VHostSCSIPCI
;
27 * vhost-scsi-pci: This extends VirtioPCIProxy.
29 #define TYPE_VHOST_SCSI_PCI "vhost-scsi-pci-base"
30 #define VHOST_SCSI_PCI(obj) \
31 OBJECT_CHECK(VHostSCSIPCI, (obj), TYPE_VHOST_SCSI_PCI)
34 VirtIOPCIProxy parent_obj
;
38 static Property vhost_scsi_pci_properties
[] = {
39 DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy
, nvectors
,
40 DEV_NVECTORS_UNSPECIFIED
),
41 DEFINE_PROP_END_OF_LIST(),
44 static void vhost_scsi_pci_realize(VirtIOPCIProxy
*vpci_dev
, Error
**errp
)
46 VHostSCSIPCI
*dev
= VHOST_SCSI_PCI(vpci_dev
);
47 DeviceState
*vdev
= DEVICE(&dev
->vdev
);
48 VirtIOSCSICommon
*vs
= VIRTIO_SCSI_COMMON(vdev
);
50 if (vpci_dev
->nvectors
== DEV_NVECTORS_UNSPECIFIED
) {
51 vpci_dev
->nvectors
= vs
->conf
.num_queues
+ 3;
54 qdev_set_parent_bus(vdev
, BUS(&vpci_dev
->bus
));
55 object_property_set_bool(OBJECT(vdev
), true, "realized", errp
);
58 static void vhost_scsi_pci_class_init(ObjectClass
*klass
, void *data
)
60 DeviceClass
*dc
= DEVICE_CLASS(klass
);
61 VirtioPCIClass
*k
= VIRTIO_PCI_CLASS(klass
);
62 PCIDeviceClass
*pcidev_k
= PCI_DEVICE_CLASS(klass
);
63 k
->realize
= vhost_scsi_pci_realize
;
64 set_bit(DEVICE_CATEGORY_STORAGE
, dc
->categories
);
65 dc
->props
= vhost_scsi_pci_properties
;
66 pcidev_k
->vendor_id
= PCI_VENDOR_ID_REDHAT_QUMRANET
;
67 pcidev_k
->device_id
= PCI_DEVICE_ID_VIRTIO_SCSI
;
68 pcidev_k
->revision
= 0x00;
69 pcidev_k
->class_id
= PCI_CLASS_STORAGE_SCSI
;
72 static void vhost_scsi_pci_instance_init(Object
*obj
)
74 VHostSCSIPCI
*dev
= VHOST_SCSI_PCI(obj
);
76 virtio_instance_init_common(obj
, &dev
->vdev
, sizeof(dev
->vdev
),
78 object_property_add_alias(obj
, "bootindex", OBJECT(&dev
->vdev
),
79 "bootindex", &error_abort
);
82 static const VirtioPCIDeviceTypeInfo vhost_scsi_pci_info
= {
83 .base_name
= TYPE_VHOST_SCSI_PCI
,
84 .generic_name
= "vhost-scsi-pci",
85 .transitional_name
= "vhost-scsi-pci-transitional",
86 .non_transitional_name
= "vhost-scsi-pci-non-transitional",
87 .instance_size
= sizeof(VHostSCSIPCI
),
88 .instance_init
= vhost_scsi_pci_instance_init
,
89 .class_init
= vhost_scsi_pci_class_init
,
92 static void vhost_scsi_pci_register(void)
94 virtio_pci_types_register(&vhost_scsi_pci_info
);
97 type_init(vhost_scsi_pci_register
)