1 /*
2 * Virtio net PCI Bindings
3 *
4 * Copyright IBM, Corp. 2007
5 * Copyright (c) 2009 CodeSourcery
6 *
7 * Authors:
8 * Anthony Liguori <aliguori@us.ibm.com>
9 * Paul Brook <paul@codesourcery.com>
10 *
11 * This work is licensed under the terms of the GNU GPL, version 2. See
12 * the COPYING file in the top-level directory.
13 *
14 * Contributions after 2012-01-13 are licensed under the terms of the
15 * GNU GPL, version 2 or (at your option) any later version.
16 */
17
18 #include "qemu/osdep.h"
19
20 #include "hw/qdev-properties.h"
21 #include "hw/virtio/virtio-net.h"
22 #include "hw/virtio/virtio-pci.h"
23 #include "qapi/error.h"
24 #include "qemu/module.h"
25 #include "qom/object.h"
26
27 typedef struct VirtIONetPCI VirtIONetPCI;
28
29 /*
30 * virtio-net-pci: This extends VirtioPCIProxy.
31 */
32 #define TYPE_VIRTIO_NET_PCI "virtio-net-pci-base"
33 DECLARE_INSTANCE_CHECKER(VirtIONetPCI, VIRTIO_NET_PCI,
34 TYPE_VIRTIO_NET_PCI)
35
36 struct VirtIONetPCI {
37 VirtIOPCIProxy parent_obj;
38 VirtIONet vdev;
39 };
40
41 static const Property virtio_net_properties[] = {
42 DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy, flags,
43 VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT, true),
44 DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors,
45 DEV_NVECTORS_UNSPECIFIED),
46 };
47
virtio_net_pci_realize(VirtIOPCIProxy * vpci_dev,Error ** errp)48 static void virtio_net_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
49 {
50 DeviceState *qdev = DEVICE(vpci_dev);
51 VirtIONetPCI *dev = VIRTIO_NET_PCI(vpci_dev);
52 DeviceState *vdev = DEVICE(&dev->vdev);
53 VirtIONet *net = VIRTIO_NET(vdev);
54
55 if (vpci_dev->nvectors == DEV_NVECTORS_UNSPECIFIED) {
56 vpci_dev->nvectors = 2 * MAX(net->nic_conf.peers.queues, 1)
57 + 1 /* Config interrupt */
58 + 1 /* Control vq */;
59 }
60
61 virtio_net_set_netclient_name(&dev->vdev, qdev->id,
62 object_get_typename(OBJECT(qdev)));
63 qdev_realize(vdev, BUS(&vpci_dev->bus), errp);
64 }
65
virtio_net_pci_class_init(ObjectClass * klass,const void * data)66 static void virtio_net_pci_class_init(ObjectClass *klass, const void *data)
67 {
68 DeviceClass *dc = DEVICE_CLASS(klass);
69 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
70 VirtioPCIClass *vpciklass = VIRTIO_PCI_CLASS(klass);
71
72 k->romfile = "efi-virtio.rom";
73 k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET;
74 k->device_id = PCI_DEVICE_ID_VIRTIO_NET;
75 k->revision = VIRTIO_PCI_ABI_VERSION;
76 k->class_id = PCI_CLASS_NETWORK_ETHERNET;
77 k->sriov_vf_user_creatable = true;
78 set_bit(DEVICE_CATEGORY_NETWORK, dc->categories);
79 device_class_set_props(dc, virtio_net_properties);
80 vpciklass->realize = virtio_net_pci_realize;
81 }
82
virtio_net_pci_instance_init(Object * obj)83 static void virtio_net_pci_instance_init(Object *obj)
84 {
85 VirtIONetPCI *dev = VIRTIO_NET_PCI(obj);
86
87 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
88 TYPE_VIRTIO_NET);
89 object_property_add_alias(obj, "bootindex", OBJECT(&dev->vdev),
90 "bootindex");
91 }
92
93 static const VirtioPCIDeviceTypeInfo virtio_net_pci_info = {
94 .base_name = TYPE_VIRTIO_NET_PCI,
95 .generic_name = "virtio-net-pci",
96 .transitional_name = "virtio-net-pci-transitional",
97 .non_transitional_name = "virtio-net-pci-non-transitional",
98 .instance_size = sizeof(VirtIONetPCI),
99 .instance_init = virtio_net_pci_instance_init,
100 .class_init = virtio_net_pci_class_init,
101 };
102
virtio_net_pci_register(void)103 static void virtio_net_pci_register(void)
104 {
105 virtio_pci_types_register(&virtio_net_pci_info);
106 }
107
108 type_init(virtio_net_pci_register)
109