Module virtio_net 

VirtIO Network Device driver

Provides network I/O via VirtIO-net protocol for QEMU/KVM environments. Implements the common crate::hardware::nic::NetworkDevice trait so this driver plugs into the unified /dev/net/ scheme.

Reference: VirtIO spec v1.2, Section 5.1 (Network Device) https://docs.oasis-open.org/virtio/virtio/v1.4/cs01/virtio-v1.4-cs01.html#x1-2700001

Modules

features

VirtIO net device features

net_status

VirtIO net status flags

Structs

VirtioNetDevice

VirtIO Network Device driver

VirtioNetHeader

VirtIO net header (prepended to every packet)

Constants

RX_FRAME_TRACK_CAPACITY 🔒

TX_FRAME_TRACK_CAPACITY 🔒

Statics

NET_HDR_SIZE 🔒

VirtIO net header size (12 bytes with MRG_RXBUF, 10 bytes without). Determined at runtime during feature negotiation.

VIRTIO_NET 🔒

Global VirtIO network device

Functions

get_device

Get the VirtIO network device instance (if present).

init

Initialize VirtIO network device and register it in the global net registry.

read_plausible_mac 🔒

Read 6 bytes at offset in the device-config window and accept them only if they look like a unicast MAC (not an all-ones/all-zeros unmapped read).