4 //! Kernel-based vhost-net backend
16 use crate::net::*;
18 const VHOST_NET_PATH: &str = "/dev/vhost-net";
21 pub struct Net<AS: GuestAddressSpace> {  struct
26 impl<AS: GuestAddressSpace> Net<AS> {  impl
27     /// Open a handle to a new VHOST-NET instance.
29         Ok(Net {  in new()
41 impl<AS: GuestAddressSpace> VhostNet for Net<AS> {  implementation
48         // SAFETY: Safe because the vhost-net fd is valid and we check the return value  in set_backend()
54 impl<AS: GuestAddressSpace> VhostKernBackend for Net<AS> {  implementation
62 impl<AS: GuestAddressSpace> AsRawFd for Net<AS> {  implementation
83         let net = Net::new(&m).unwrap();  in test_net_new_device()  localVariable
85         assert!(net.as_raw_fd() >= 0);  in test_net_new_device()
86         assert!(net.mem().find_region(GuestAddress(0x100)).is_some());  in test_net_new_device()
87         assert!(net.mem().find_region(GuestAddress(0x10_0000)).is_none());  in test_net_new_device()
94         let net = Net::new(&m).unwrap();  in test_net_is_valid()  localVariable
105         assert!(net.is_valid(&config));  in test_net_is_valid()
108         assert!(!net.is_valid(&config));  in test_net_is_valid()
110         assert!(!net.is_valid(&config));  in test_net_is_valid()
112         assert!(!net.is_valid(&config));  in test_net_is_valid()
119         let net = Net::new(&m).unwrap();  in test_net_ioctls()  localVariable
126         let features = net.get_features().unwrap();  in test_net_ioctls()
127         net.set_features(features).unwrap();  in test_net_ioctls()
129         net.set_owner().unwrap();  in test_net_ioctls()
131         net.set_mem_table(&[]).unwrap_err();  in test_net_ioctls()
140         net.set_mem_table(&[region]).unwrap();  in test_net_ioctls()
142         net.set_log_base(  in test_net_ioctls()
151         net.set_log_base(0x4000, None).unwrap();  in test_net_ioctls()
154         net.set_log_fd(eventfd.as_raw_fd()).unwrap();  in test_net_ioctls()
156         net.set_vring_num(0, 32).unwrap();  in test_net_ioctls()
167         net.set_vring_addr(0, &config).unwrap();  in test_net_ioctls()
168         net.set_vring_base(0, 1).unwrap();  in test_net_ioctls()
169         net.set_vring_call(0, &eventfd).unwrap();  in test_net_ioctls()
170         net.set_vring_kick(0, &eventfd).unwrap();  in test_net_ioctls()
171         net.set_vring_err(0, &eventfd).unwrap();  in test_net_ioctls()
172         assert_eq!(net.get_vring_base(0).unwrap(), 1);  in test_net_ioctls()
174         net.set_backend(0, Some(&backend)).unwrap_err();  in test_net_ioctls()
175         net.set_backend(0, None).unwrap();  in test_net_ioctls()