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17#include "qemu/osdep.h"
18
19#include "standard-headers/linux/virtio_pci.h"
20#include "hw/qdev-properties.h"
21#include "hw/virtio/vhost-scsi.h"
22#include "qapi/error.h"
23#include "qemu/module.h"
24#include "hw/virtio/virtio-pci.h"
25#include "qom/object.h"
26
27typedef struct VHostSCSIPCI VHostSCSIPCI;
28
29
30
31
32#define TYPE_VHOST_SCSI_PCI "vhost-scsi-pci-base"
33DECLARE_INSTANCE_CHECKER(VHostSCSIPCI, VHOST_SCSI_PCI,
34 TYPE_VHOST_SCSI_PCI)
35
36struct VHostSCSIPCI {
37 VirtIOPCIProxy parent_obj;
38 VHostSCSI vdev;
39};
40
41static Property vhost_scsi_pci_properties[] = {
42 DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors,
43 DEV_NVECTORS_UNSPECIFIED),
44 DEFINE_PROP_END_OF_LIST(),
45};
46
47static void vhost_scsi_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
48{
49 VHostSCSIPCI *dev = VHOST_SCSI_PCI(vpci_dev);
50 DeviceState *vdev = DEVICE(&dev->vdev);
51 VirtIOSCSIConf *conf = &dev->vdev.parent_obj.parent_obj.conf;
52
53 if (conf->num_queues == VIRTIO_SCSI_AUTO_NUM_QUEUES) {
54 conf->num_queues =
55 virtio_pci_optimal_num_queues(VIRTIO_SCSI_VQ_NUM_FIXED);
56 }
57
58 if (vpci_dev->nvectors == DEV_NVECTORS_UNSPECIFIED) {
59 vpci_dev->nvectors = conf->num_queues + VIRTIO_SCSI_VQ_NUM_FIXED + 1;
60 }
61
62 qdev_realize(vdev, BUS(&vpci_dev->bus), errp);
63}
64
65static void vhost_scsi_pci_class_init(ObjectClass *klass, void *data)
66{
67 DeviceClass *dc = DEVICE_CLASS(klass);
68 VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass);
69 PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass);
70 k->realize = vhost_scsi_pci_realize;
71 set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
72 device_class_set_props(dc, vhost_scsi_pci_properties);
73 pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET;
74 pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_SCSI;
75 pcidev_k->revision = 0x00;
76 pcidev_k->class_id = PCI_CLASS_STORAGE_SCSI;
77}
78
79static void vhost_scsi_pci_instance_init(Object *obj)
80{
81 VHostSCSIPCI *dev = VHOST_SCSI_PCI(obj);
82
83 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
84 TYPE_VHOST_SCSI);
85 object_property_add_alias(obj, "bootindex", OBJECT(&dev->vdev),
86 "bootindex");
87}
88
89static const VirtioPCIDeviceTypeInfo vhost_scsi_pci_info = {
90 .base_name = TYPE_VHOST_SCSI_PCI,
91 .generic_name = "vhost-scsi-pci",
92 .transitional_name = "vhost-scsi-pci-transitional",
93 .non_transitional_name = "vhost-scsi-pci-non-transitional",
94 .instance_size = sizeof(VHostSCSIPCI),
95 .instance_init = vhost_scsi_pci_instance_init,
96 .class_init = vhost_scsi_pci_class_init,
97};
98
99static void vhost_scsi_pci_register(void)
100{
101 virtio_pci_types_register(&vhost_scsi_pci_info);
102}
103
104type_init(vhost_scsi_pci_register)
105