Struct RxRing 

pub struct RxRing<D: RxDescriptor> { /* private fields */ }

Implementations

impl<D: RxDescriptor> RxRing<D>

pub unsafe fn new(descs: *mut D, count: usize) -> Self

Safety

descs must point to count valid, zero-initialised descriptors.

pub fn count(&self) -> usize

Performs the count operation.

pub fn tail(&self) -> usize

Performs the tail operation.

pub fn desc_mut(&mut self, idx: usize) -> &mut D

Performs the desc mut operation.

pub fn poll(&self) -> Option<(usize, u16)>

Check the next descriptor; returns (index, packet_length) if ready.

pub fn advance(&mut self) -> usize

Advance tail after consuming a packet. Returns new tail.

pub fn setup_desc(&mut self, idx: usize, buf_phys: u64)

Set up one RX descriptor with a pre-allocated buffer.

Trait Implementations

impl<D: RxDescriptor> Send for RxRing<D>