Struct mlx_ethernet::completion_queue::CompletionQueue

pub struct CompletionQueue { /* private fields */ }

A data structure that contains the CQ buffer and is used to interact with the CQ once initialized.

Implementations

impl CompletionQueue

pub fn init( entries_mp: MappedPages, num_entries: usize, doorbell_mp: MappedPages, cqn: Cqn ) -> Result<CompletionQueue, &'static str>

Creates a completion queue by mapping the buffer as a slice of CompletionQueueEntrys. Each CQE is set to an initial state.

Arguments

• entries_mp: memory that is to be transformed into a slice of CQEs. The starting physical address should have been passed to the HCA when creating the CQ.
• num_entries: number of entries in the CQ
• doorbell_mp: memory that is to be transformed into a CompletionQueueDoorbellRecord. The starting physical address should have been passed to the HCA when creating the CQ.
• cqn: CQ number returned by the HCA

pub fn check_packet_transmission(&mut self, entry_num: usize, wqe_counter: u16)

Checks if a packet is transmitted by comparing the wqe_counter with the value in the CQE. If it is, then prints out the WQE opcode and counter.

pub fn dump(&self)

Prints out all entries in the CQ