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 "qemu/module.h"
23 #include "virtio-pci.h"
25 typedef struct VHostSCSIPCI VHostSCSIPCI
;
28 * vhost-scsi-pci: This extends VirtioPCIProxy.
30 #define TYPE_VHOST_SCSI_PCI "vhost-scsi-pci-base"
31 #define VHOST_SCSI_PCI(obj) \
32 OBJECT_CHECK(VHostSCSIPCI, (obj), TYPE_VHOST_SCSI_PCI)
35 VirtIOPCIProxy parent_obj
;
39 static Property vhost_scsi_pci_properties
[] = {
40 DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy
, nvectors
,
41 DEV_NVECTORS_UNSPECIFIED
),
42 DEFINE_PROP_END_OF_LIST(),
45 static void vhost_scsi_pci_realize(VirtIOPCIProxy
*vpci_dev
, Error
**errp
)
47 VHostSCSIPCI
*dev
= VHOST_SCSI_PCI(vpci_dev
);
48 DeviceState
*vdev
= DEVICE(&dev
->vdev
);
49 VirtIOSCSICommon
*vs
= VIRTIO_SCSI_COMMON(vdev
);
51 if (vpci_dev
->nvectors
== DEV_NVECTORS_UNSPECIFIED
) {
52 vpci_dev
->nvectors
= vs
->conf
.num_queues
+ 3;
55 qdev_set_parent_bus(vdev
, BUS(&vpci_dev
->bus
));
56 object_property_set_bool(OBJECT(vdev
), true, "realized", errp
);
59 static void vhost_scsi_pci_class_init(ObjectClass
*klass
, void *data
)
61 DeviceClass
*dc
= DEVICE_CLASS(klass
);
62 VirtioPCIClass
*k
= VIRTIO_PCI_CLASS(klass
);
63 PCIDeviceClass
*pcidev_k
= PCI_DEVICE_CLASS(klass
);
64 k
->realize
= vhost_scsi_pci_realize
;
65 set_bit(DEVICE_CATEGORY_STORAGE
, dc
->categories
);
66 dc
->props
= vhost_scsi_pci_properties
;
67 pcidev_k
->vendor_id
= PCI_VENDOR_ID_REDHAT_QUMRANET
;
68 pcidev_k
->device_id
= PCI_DEVICE_ID_VIRTIO_SCSI
;
69 pcidev_k
->revision
= 0x00;
70 pcidev_k
->class_id
= PCI_CLASS_STORAGE_SCSI
;
73 static void vhost_scsi_pci_instance_init(Object
*obj
)
75 VHostSCSIPCI
*dev
= VHOST_SCSI_PCI(obj
);
77 virtio_instance_init_common(obj
, &dev
->vdev
, sizeof(dev
->vdev
),
79 object_property_add_alias(obj
, "bootindex", OBJECT(&dev
->vdev
),
80 "bootindex", &error_abort
);
83 static const VirtioPCIDeviceTypeInfo vhost_scsi_pci_info
= {
84 .base_name
= TYPE_VHOST_SCSI_PCI
,
85 .generic_name
= "vhost-scsi-pci",
86 .transitional_name
= "vhost-scsi-pci-transitional",
87 .non_transitional_name
= "vhost-scsi-pci-non-transitional",
88 .instance_size
= sizeof(VHostSCSIPCI
),
89 .instance_init
= vhost_scsi_pci_instance_init
,
90 .class_init
= vhost_scsi_pci_class_init
,
93 static void vhost_scsi_pci_register(void)
95 virtio_pci_types_register(&vhost_scsi_pci_info
);
98 type_init(vhost_scsi_pci_register
)