hw/arm/raspi: fix CPRMAN base address
[qemu.git] / hw / virtio / vhost-scsi-pci.c
1 /*
2 * Vhost scsi PCI bindings
3 *
4 * Copyright IBM, Corp. 2011
5 *
6 * Authors:
7 * Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
8 *
9 * Changes for QEMU mainline + tcm_vhost kernel upstream:
10 * Nicholas Bellinger <nab@risingtidesystems.com>
11 *
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.
14 *
15 */
16
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 "virtio-pci.h"
25 #include "qom/object.h"
26
27 typedef struct VHostSCSIPCI VHostSCSIPCI;
28
29 /*
30 * vhost-scsi-pci: This extends VirtioPCIProxy.
31 */
32 #define TYPE_VHOST_SCSI_PCI "vhost-scsi-pci-base"
33 DECLARE_INSTANCE_CHECKER(VHostSCSIPCI, VHOST_SCSI_PCI,
34 TYPE_VHOST_SCSI_PCI)
35
36 struct VHostSCSIPCI {
37 VirtIOPCIProxy parent_obj;
38 VHostSCSI vdev;
39 };
40
41 static Property vhost_scsi_pci_properties[] = {
42 DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors,
43 DEV_NVECTORS_UNSPECIFIED),
44 DEFINE_PROP_END_OF_LIST(),
45 };
46
47 static 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
65 static 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
79 static 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
89 static 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
99 static void vhost_scsi_pci_register(void)
100 {
101 virtio_pci_types_register(&vhost_scsi_pci_info);
102 }
103
104 type_init(vhost_scsi_pci_register)