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19#include "qemu/osdep.h"
20#include "libqtest.h"
21#include "libqos/qgraph.h"
22#include "libqos/virtio-net.h"
23#include "hw/virtio/virtio-net.h"
24
25
26static QGuestAllocator *alloc;
27
28static void virtio_net_cleanup(QVirtioNet *interface)
29{
30 int i;
31
32 for (i = 0; i < interface->n_queues; i++) {
33 qvirtqueue_cleanup(interface->vdev->bus, interface->queues[i], alloc);
34 }
35 g_free(interface->queues);
36}
37
38static void virtio_net_setup(QVirtioNet *interface)
39{
40 QVirtioDevice *vdev = interface->vdev;
41 uint64_t features;
42 int i;
43
44 features = qvirtio_get_features(vdev);
45 features &= ~(QVIRTIO_F_BAD_FEATURE |
46 (1u << VIRTIO_RING_F_INDIRECT_DESC) |
47 (1u << VIRTIO_RING_F_EVENT_IDX));
48 qvirtio_set_features(vdev, features);
49
50 if (features & (1u << VIRTIO_NET_F_MQ)) {
51 interface->n_queues = qvirtio_config_readw(vdev, 8) * 2;
52 } else {
53 interface->n_queues = 2;
54 }
55
56 interface->queues = g_new(QVirtQueue *, interface->n_queues);
57 for (i = 0; i < interface->n_queues; i++) {
58 interface->queues[i] = qvirtqueue_setup(vdev, alloc, i);
59 }
60 qvirtio_set_driver_ok(vdev);
61}
62
63
64static void qvirtio_net_device_destructor(QOSGraphObject *obj)
65{
66 QVirtioNetDevice *v_net = (QVirtioNetDevice *) obj;
67 virtio_net_cleanup(&v_net->net);
68}
69
70static void qvirtio_net_device_start_hw(QOSGraphObject *obj)
71{
72 QVirtioNetDevice *v_net = (QVirtioNetDevice *) obj;
73 QVirtioNet *interface = &v_net->net;
74
75 virtio_net_setup(interface);
76}
77
78static void *qvirtio_net_get_driver(QVirtioNet *v_net,
79 const char *interface)
80{
81 if (!g_strcmp0(interface, "virtio-net")) {
82 return v_net;
83 }
84 if (!g_strcmp0(interface, "virtio")) {
85 return v_net->vdev;
86 }
87
88 fprintf(stderr, "%s not present in virtio-net-device\n", interface);
89 g_assert_not_reached();
90}
91
92static void *qvirtio_net_device_get_driver(void *object,
93 const char *interface)
94{
95 QVirtioNetDevice *v_net = object;
96 return qvirtio_net_get_driver(&v_net->net, interface);
97}
98
99static void *virtio_net_device_create(void *virtio_dev,
100 QGuestAllocator *t_alloc,
101 void *addr)
102{
103 QVirtioNetDevice *virtio_ndevice = g_new0(QVirtioNetDevice, 1);
104 QVirtioNet *interface = &virtio_ndevice->net;
105
106 interface->vdev = virtio_dev;
107 alloc = t_alloc;
108
109 virtio_ndevice->obj.destructor = qvirtio_net_device_destructor;
110 virtio_ndevice->obj.get_driver = qvirtio_net_device_get_driver;
111 virtio_ndevice->obj.start_hw = qvirtio_net_device_start_hw;
112
113 return &virtio_ndevice->obj;
114}
115
116
117static void qvirtio_net_pci_destructor(QOSGraphObject *obj)
118{
119 QVirtioNetPCI *v_net = (QVirtioNetPCI *) obj;
120 QVirtioNet *interface = &v_net->net;
121 QOSGraphObject *pci_vobj = &v_net->pci_vdev.obj;
122
123 virtio_net_cleanup(interface);
124 qvirtio_pci_destructor(pci_vobj);
125}
126
127static void qvirtio_net_pci_start_hw(QOSGraphObject *obj)
128{
129 QVirtioNetPCI *v_net = (QVirtioNetPCI *) obj;
130 QVirtioNet *interface = &v_net->net;
131 QOSGraphObject *pci_vobj = &v_net->pci_vdev.obj;
132
133 qvirtio_pci_start_hw(pci_vobj);
134 virtio_net_setup(interface);
135}
136
137static void *qvirtio_net_pci_get_driver(void *object,
138 const char *interface)
139{
140 QVirtioNetPCI *v_net = object;
141 if (!g_strcmp0(interface, "pci-device")) {
142 return v_net->pci_vdev.pdev;
143 }
144 return qvirtio_net_get_driver(&v_net->net, interface);
145}
146
147static void *virtio_net_pci_create(void *pci_bus, QGuestAllocator *t_alloc,
148 void *addr)
149{
150 QVirtioNetPCI *virtio_bpci = g_new0(QVirtioNetPCI, 1);
151 QVirtioNet *interface = &virtio_bpci->net;
152 QOSGraphObject *obj = &virtio_bpci->pci_vdev.obj;
153
154 virtio_pci_init(&virtio_bpci->pci_vdev, pci_bus, addr);
155 interface->vdev = &virtio_bpci->pci_vdev.vdev;
156 alloc = t_alloc;
157
158 g_assert_cmphex(interface->vdev->device_type, ==, VIRTIO_ID_NET);
159
160 obj->destructor = qvirtio_net_pci_destructor;
161 obj->start_hw = qvirtio_net_pci_start_hw;
162 obj->get_driver = qvirtio_net_pci_get_driver;
163
164 return obj;
165}
166
167static void virtio_net_register_nodes(void)
168{
169
170
171
172
173
174 QPCIAddress addr = {
175 .devfn = QPCI_DEVFN(4, 0),
176 };
177
178 QOSGraphEdgeOptions opts = { };
179
180
181 opts.extra_device_opts = "netdev=hs0";
182 qos_node_create_driver("virtio-net-device",
183 virtio_net_device_create);
184 qos_node_consumes("virtio-net-device", "virtio-bus", &opts);
185 qos_node_produces("virtio-net-device", "virtio-net");
186
187
188 opts.extra_device_opts = "netdev=hs0,addr=04.0";
189 add_qpci_address(&opts, &addr);
190 qos_node_create_driver("virtio-net-pci", virtio_net_pci_create);
191 qos_node_consumes("virtio-net-pci", "pci-bus", &opts);
192 qos_node_produces("virtio-net-pci", "virtio-net");
193}
194
195libqos_init(virtio_net_register_nodes);
196