Struct Wq

pub struct Wq { /* private fields */ }

A work queue (send or receive).

Implementations

impl Wq

pub fn new_sq(mem: MemoryBlock, doorbell: DoorbellPage, id: u32) -> Self

Creates a new send work queue.

pub fn new_rq(mem: MemoryBlock, doorbell: DoorbellPage, id: u32) -> Self

Creates a new receive work queue.

pub fn id(&self) -> u32

Returns the queue ID.

pub fn advance_head(&mut self, n: u32)

Advances the head, indicating that n more bytes are available in the ring.

pub fn available(&self) -> u32

Returns the number of bytes available in the ring.

pub const fn entry_size(oob_len: usize, sge_count: usize) -> u32

Computes the size of an entry with oob_len OOB bytes and sge_count scatter-gather entries.

pub fn push<I: IntoIterator<Item = Sge>>( &mut self, oob: &(impl IntoBytes + Immutable + KnownLayout), sgl: I, client_oob_in_sgl: Option<u8>, gd_client_unit_data: u16, ) -> Result<u32, QueueFull>

where I::IntoIter: ExactSizeIterator,

Pushes a new work queue entry with an inline out-of-band buffer and external data via a scatter-gather list.

pub fn commit(&mut self)

Commits all written entries by updating the doorbell value observed by the device.

pub fn get_tail(&mut self) -> u32

Reports tail value for diagnostics

Trait Implementations

impl Inspect for Wq

fn inspect(&self, req: Request<'_>)

Inspects the object.