Struct DeviceBaseInfo 

pub struct DeviceBaseInfo {
    pub rx_depth: Option<u16>,
    pub tx_depth: Option<u16>,
    pub buffer_alignment: Option<u32>,
    pub max_buffer_length: Option<u32>,
    pub min_rx_buffer_length: Option<u32>,
    pub min_tx_buffer_length: Option<u32>,
    pub min_tx_buffer_head: Option<u16>,
    pub min_tx_buffer_tail: Option<u16>,
    pub max_buffer_parts: Option<u8>,
    pub min_rx_buffers: Option<u16>,
    /* private fields */
}

Network device base info.

Fields

rx_depth: Option<u16>

Maximum number of items in rx FIFO (per session). Required.

rx_depth is calculated based on the size of the actual backing hardware rx queue.

tx_depth: Option<u16>

Maximum number of items in tx FIFO (per session). Required.

tx_depth is calculated based on the size of the actual backing hardware tx queue.

buffer_alignment: Option<u32>

Alignment requirement for buffers in the data VMO.

All buffers in the data VMO must be aligned to buffer_alignment relative to the start of the VMO. buffer_alignment == 0 is never reported. Required.

max_buffer_length: Option<u32>

Maximum supported length of buffers in the data VMO, in bytes.

Absent if no maximum buffer length is defined. Must be nonzero.

min_rx_buffer_length: Option<u32>

The minimum rx buffer length required for device. Required.

min_tx_buffer_length: Option<u32>

The minimum tx buffer length required for the device. Required.

This value accounts only for tx payload length, min_tx_buffer_head and min_tx_buffer_tail are not part of this value.

Clients must zero pad outgoing frames to meet the required minimum length.

min_tx_buffer_head: Option<u16>

The number of bytes the device requests be free as head space in a tx buffer. Required.

min_tx_buffer_tail: Option<u16>

The amount of bytes the device requests be free as tail space in a tx buffer. Required.

max_buffer_parts: Option<u8>

Maximum descriptor chain length accepted by the device. Required.

min_rx_buffers: Option<u16>

Minimum amount of Rx buffers the client needs to prepare for the network device. Client should use this information to select its VMO sizes if using multi-VMO support.

Trait Implementations

impl Clone for DeviceBaseInfo

fn clone(&self) -> DeviceBaseInfo

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DeviceBaseInfo

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

Formats the value using the given formatter.

impl<D> Decode<DeviceBaseInfo, D> for DeviceBaseInfo

where D: ResourceDialect,

fn new_empty() -> DeviceBaseInfo

Creates a valid instance of Self. The specific value does not matter, since it will be overwritten by decode.

unsafe fn decode( &mut self, decoder: &mut Decoder<'_, D>, offset: usize, depth: Depth, ) -> Result<(), Error>

Decodes an object of type T from the decoder’s buffers into self.

impl Default for DeviceBaseInfo

fn default() -> DeviceBaseInfo

Returns the “default value” for a type.

impl<D> Encode<DeviceBaseInfo, D> for &DeviceBaseInfo

where D: ResourceDialect,

unsafe fn encode( self, encoder: &mut Encoder<'_, D>, offset: usize, depth: Depth, ) -> Result<(), Error>

Encodes the object into the encoder’s buffers. Any handles stored in the object are swapped for Handle::INVALID.

impl PartialEq for DeviceBaseInfo

fn eq(&self, other: &DeviceBaseInfo) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Persistable for DeviceBaseInfo

impl StructuralPartialEq for DeviceBaseInfo

impl TypeMarker for DeviceBaseInfo

type Owned = DeviceBaseInfo

The owned Rust type which this FIDL type decodes into.

fn inline_align(_context: Context) -> usize

Returns the minimum required alignment of the inline portion of the encoded object. It must be a (nonzero) power of two.

fn inline_size(_context: Context) -> usize

Returns the size of the inline portion of the encoded object, including padding for alignment. Must be a multiple of inline_align.

fn encode_is_copy() -> bool

Returns true if the memory layout of Self::Owned matches the FIDL wire format and encoding requires no validation. When true, we can optimize encoding arrays and vectors of Self::Owned to a single memcpy.

fn decode_is_copy() -> bool

Returns true if the memory layout of Self::Owned matches the FIDL wire format and decoding requires no validation. When true, we can optimize decoding arrays and vectors of Self::Owned to a single memcpy.

impl ValueTypeMarker for DeviceBaseInfo

type Borrowed<'a> = &'a DeviceBaseInfo

The Rust type to use for encoding. This is a particular Encode<Self> type cheaply obtainable from &Self::Owned. There are three cases:

fn borrow( value: &<DeviceBaseInfo as TypeMarker>::Owned, ) -> <DeviceBaseInfo as ValueTypeMarker>::Borrowed<'_>

Cheaply converts from &Self::Owned to Self::Borrowed.