xref: /qemu/include/net/vhost_net.h (revision b83a80e8)
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 #define VHOST_NET_INIT_FAILED \
8     "vhost-net requested but could not be initialized"
9 
10 struct vhost_net;
11 typedef struct vhost_net VHostNetState;
12 
13 typedef struct VhostNetOptions {
14     VhostBackendType backend_type;
15     NetClientState *net_backend;
16     uint32_t busyloop_timeout;
17     unsigned int nvqs;
18     void *opaque;
19 } VhostNetOptions;
20 
21 uint64_t vhost_net_get_max_queues(VHostNetState *net);
22 struct vhost_net *vhost_net_init(VhostNetOptions *options);
23 
24 int vhost_net_start(VirtIODevice *dev, NetClientState *ncs,
25                     int data_queue_pairs, int cvq);
26 void vhost_net_stop(VirtIODevice *dev, NetClientState *ncs,
27                     int data_queue_pairs, int cvq);
28 
29 void vhost_net_cleanup(VHostNetState *net);
30 
31 uint64_t vhost_net_get_features(VHostNetState *net, uint64_t features);
32 void vhost_net_ack_features(VHostNetState *net, uint64_t features);
33 
34 int vhost_net_get_config(struct vhost_net *net,  uint8_t *config,
35                          uint32_t config_len);
36 
37 int vhost_net_set_config(struct vhost_net *net, const uint8_t *data,
38                          uint32_t offset, uint32_t size, uint32_t flags);
39 bool vhost_net_virtqueue_pending(VHostNetState *net, int n);
40 void vhost_net_virtqueue_mask(VHostNetState *net, VirtIODevice *dev,
41                               int idx, bool mask);
42 int vhost_net_notify_migration_done(VHostNetState *net, char* mac_addr);
43 VHostNetState *get_vhost_net(NetClientState *nc);
44 
45 int vhost_set_vring_enable(NetClientState * nc, int enable);
46 
47 uint64_t vhost_net_get_acked_features(VHostNetState *net);
48 
49 int vhost_net_set_mtu(struct vhost_net *net, uint16_t mtu);
50 
51 #endif
52