Struct vmm_vhost::message::DescStatePacked

#[repr(C, packed(1))]
pub struct DescStatePacked {
    pub inflight: u8,
    padding: u8,
    pub next: u16,
    pub last: u16,
    pub num: u16,
    pub counter: u64,
    pub id: u16,
    pub flags: u16,
    pub len: u32,
    pub addr: u64,
}

Inflight I/O descriptor state for packed virtqueues

Fields

inflight: u8

Indicate whether this descriptor (only head) is inflight or not.

padding: u8

Padding

next: u16

Link to next free entry

last: u16

Link to last entry of descriptor list, only for head

num: u16

Length of descriptor list, only for head

counter: u64

Preserve order of fetching avail descriptors, only for head

id: u16

Buffer ID

flags: u16

Descriptor flags

len: u32

Buffer length

addr: u64

Buffer address

Implementations

impl DescStatePacked

pub fn new() -> Self

New instance of DescStatePacked struct

Trait Implementations

impl Clone for DescStatePacked

fn clone(&self) -> DescStatePacked

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Default for DescStatePacked

fn default() -> DescStatePacked

Returns the “default value” for a type.

impl Copy for DescStatePacked