Struct EthernetTapDriver

pub struct EthernetTapDriver<'a, E: EthernetAdapterDatapath<'a>> { /* private fields */ }

Implementations

impl<'a, E: EthernetAdapterDatapath<'a>> EthernetTapDriver<'a, E>

pub fn new( iface: &'a E, grant: Grant<App, UpcallCount<{ upcall::COUNT }>, AllowRoCount<{ ro_allow::COUNT }>, AllowRwCount<{ rw_allow::COUNT }>>, tx_buffer: &'static mut [u8], ) -> Self

pub fn initialize(&self)

pub fn command_transmit_frame( &self, process_id: ProcessId, len: u16, transmission_identifier: u32, ) -> Result<(), ErrorCode>

Trait Implementations

impl<'a, E: EthernetAdapterDatapath<'a>> EthernetAdapterDatapathClient for EthernetTapDriver<'a, E>

Callback client for the underlying EthernetAdapterDatapath:

fn transmit_frame_done( &self, err: Result<(), ErrorCode>, frame_buffer: &'static mut [u8], len: u16, transmission_identifier: usize, timestamp: Option<u64>, )

An Ethernet frame was transmitted, or an error occurred during transmission.

fn received_frame(&self, frame: &[u8], timestamp: Option<u64>)

An Ethernet frame was received.

impl<'a, E: EthernetAdapterDatapath<'a>> SyscallDriver for EthernetTapDriver<'a, E>

Userspace system call driver interface implementation

fn command( &self, command_num: usize, arg1: usize, arg2: usize, process_id: ProcessId, ) -> CommandReturn

System call for a process to perform a short synchronous operation or start a long-running split-phase operation (whose completion is signaled with an upcall). Command 0 is a reserved command to detect if a peripheral system call driver is installed and must always return a CommandReturn::success.

fn allocate_grant(&self, processid: ProcessId) -> Result<(), Error>

Request to allocate a capsule’s grant for a specific process.

fn allow_userspace_readable( &self, app: ProcessId, which: usize, slice: ReadWriteProcessBuffer, ) -> Result<ReadWriteProcessBuffer, (ReadWriteProcessBuffer, ErrorCode)>

System call for a process to pass a buffer (a UserspaceReadableProcessBuffer) to the kernel that the kernel can either read or write. The kernel calls this method only after it checks that the entire buffer is within memory the process can both read and write.