Struct PrdtEntry 

#[repr(C)]
pub struct PrdtEntry {
    pub data_base_lo: u32,
    pub data_base_hi: u32,
    pub _reserved: u32,
    pub dbc_and_flags: u32,
}

Physical Region Descriptor Table entry (16 bytes).

Fields

data_base_lo: u32

Data base address (lower 32 bits, must be word-aligned).

data_base_hi: u32

Data base address (upper 32 bits).

_reserved: u32

Reserved.

dbc_and_flags: u32

Byte count (bit 0 must be 1 for odd byte count; bits 21:0 = count - 1). Bit 31: Interrupt on Completion.

Implementations

impl PrdtEntry

pub fn new(phys_addr: u64, byte_count: u32, interrupt: bool) -> Self

Create a new PRDT entry.

phys_addr: Physical address of the data buffer (must be word-aligned). byte_count: Number of bytes to transfer (max 4MB per entry, must be even). interrupt: If true, set the Interrupt on Completion bit.

Trait Implementations

impl Clone for PrdtEntry

fn clone(&self) -> PrdtEntry

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for PrdtEntry

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Copy for PrdtEntry