Merge tag 'edgar/xilinx-next-2022-09-21.for-upstream' of https://github.com/edgarigl...
[qemu.git] / hw / virtio / virtio-net-pci.c
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 "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 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 DEFINE_PROP_END_OF_LIST(),
47 };
48
49 static void virtio_net_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
50 {
51 DeviceState *qdev = DEVICE(vpci_dev);
52 VirtIONetPCI *dev = VIRTIO_NET_PCI(vpci_dev);
53 DeviceState *vdev = DEVICE(&dev->vdev);
54 VirtIONet *net = VIRTIO_NET(vdev);
55
56 if (vpci_dev->nvectors == DEV_NVECTORS_UNSPECIFIED) {
57 vpci_dev->nvectors = 2 * MAX(net->nic_conf.peers.queues, 1)
58 + 1 /* Config interrupt */
59 + 1 /* Control vq */;
60 }
61
62 virtio_net_set_netclient_name(&dev->vdev, qdev->id,
63 object_get_typename(OBJECT(qdev)));
64 qdev_realize(vdev, BUS(&vpci_dev->bus), errp);
65 }
66
67 static void virtio_net_pci_class_init(ObjectClass *klass, void *data)
68 {
69 DeviceClass *dc = DEVICE_CLASS(klass);
70 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
71 VirtioPCIClass *vpciklass = VIRTIO_PCI_CLASS(klass);
72
73 k->romfile = "efi-virtio.rom";
74 k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET;
75 k->device_id = PCI_DEVICE_ID_VIRTIO_NET;
76 k->revision = VIRTIO_PCI_ABI_VERSION;
77 k->class_id = PCI_CLASS_NETWORK_ETHERNET;
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
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
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)