Trait zcore_drivers::nvme::nvme_queue::Provider

pub trait Provider {
    const PAGE_SIZE: usize;

    fn alloc_dma(size: usize) -> (usize, usize);
    fn dealloc_dma(vaddr: usize, size: usize);
}

External functions that drivers must use

Required Associated Constants

const PAGE_SIZE: usize

Page size (usually 4K)

Required Methods

fn alloc_dma(size: usize) -> (usize, usize)

Allocate consequent physical memory for DMA. Return (virtual address, physical address). The address is page aligned.

fn dealloc_dma(vaddr: usize, size: usize)

Deallocate DMA

Implementors

impl Provider for ProviderImpl

const PAGE_SIZE: usize = 4_096usize