xref: /qemu/include/net/vhost_net.h (revision f6822fee)
1 #ifndef VHOST_NET_H
2 #define VHOST_NET_H
3 
4 #include "net/net.h"
5 #include "hw/virtio/vhost-backend.h"
6 
7 struct vhost_net;
8 typedef struct vhost_net VHostNetState;
9 
10 typedef struct VhostNetOptions {
11     VhostBackendType backend_type;
12     NetClientState *net_backend;
13     uint32_t busyloop_timeout;
14     unsigned int nvqs;
15     void *opaque;
16 } VhostNetOptions;
17 
18 uint64_t vhost_net_get_max_queues(VHostNetState *net);
19 struct vhost_net *vhost_net_init(VhostNetOptions *options);
20 
21 int vhost_net_start(VirtIODevice *dev, NetClientState *ncs,
22                     int data_queue_pairs, int cvq);
23 void vhost_net_stop(VirtIODevice *dev, NetClientState *ncs,
24                     int data_queue_pairs, int cvq);
25 
26 void vhost_net_cleanup(VHostNetState *net);
27 
28 uint64_t vhost_net_get_features(VHostNetState *net, uint64_t features);
29 void vhost_net_ack_features(VHostNetState *net, uint64_t features);
30 
31 int vhost_net_get_config(struct vhost_net *net,  uint8_t *config,
32                          uint32_t config_len);
33 
34 int vhost_net_set_config(struct vhost_net *net, const uint8_t *data,
35                          uint32_t offset, uint32_t size, uint32_t flags);
36 bool vhost_net_virtqueue_pending(VHostNetState *net, int n);
37 void vhost_net_virtqueue_mask(VHostNetState *net, VirtIODevice *dev,
38                               int idx, bool mask);
39 bool vhost_net_config_pending(VHostNetState *net);
40 void vhost_net_config_mask(VHostNetState *net, VirtIODevice *dev, bool mask);
41 int vhost_net_notify_migration_done(VHostNetState *net, char* mac_addr);
42 VHostNetState *get_vhost_net(NetClientState *nc);
43 
44 int vhost_set_vring_enable(NetClientState * nc, int enable);
45 
46 uint64_t vhost_net_get_acked_features(VHostNetState *net);
47 
48 int vhost_net_set_mtu(struct vhost_net *net, uint16_t mtu);
49 
50 void vhost_net_virtqueue_reset(VirtIODevice *vdev, NetClientState *nc,
51                                int vq_index);
52 int vhost_net_virtqueue_restart(VirtIODevice *vdev, NetClientState *nc,
53                                 int vq_index);
54 
55 void vhost_net_save_acked_features(NetClientState *nc);
56 #endif
57