Struct TxRing 

pub struct TxRing<D: TxDescriptor> {
    pub(crate) descs: *mut D,
    pub(crate) count: usize,
    pub(crate) tail: usize,
}

Fields

descs: *mut D

count: usize

tail: usize

Implementations

impl<D: TxDescriptor> TxRing<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(&self, idx: usize) -> &D

Performs the desc operation.

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

Performs the desc mut operation.

pub fn submit(&mut self, phys: u64, len: u16) -> usize

Prepare and submit a packet at the current tail slot. Returns the descriptor index used.

pub fn is_done(&self, idx: usize) -> bool

Returns whether done.

Trait Implementations

impl<D: TxDescriptor> Send for TxRing<D>