Trait intel_ethernet::descriptors::TxDescriptor

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pub trait TxDescriptor: FromBytes {
    // Required methods
    fn init(&mut self);
    fn send(
        &mut self,
        transmit_buffer_addr: PhysicalAddress,
        transmit_buffer_length: u16
    );
    fn wait_for_packet_tx(&self);
}
Expand description

A trait for the minimum set of functions needed to transmit a packet using one of Intel’s transmit descriptor types. Transmit descriptors contain the physical address where an outgoing packet is stored, as well as bits that are updated by the HW once the packet is sent. There is one transmit descriptor per transmit buffer. Transmit functions defined in the Network_Interface_Card crate expect a transmit descriptor to implement this trait.

Required Methods§

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fn init(&mut self)

Initializes a transmit descriptor by clearing all of its values.

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fn send( &mut self, transmit_buffer_addr: PhysicalAddress, transmit_buffer_length: u16 )

Updates the transmit descriptor to send the packet. We assume that one transmit descriptor will be used to send one packet.

Arguments
  • transmit_buffer_addr: physical address of the transmit buffer.
  • transmit_buffer_length: length of packet we want to send.
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fn wait_for_packet_tx(&self)

Polls the Descriptor Done bit until the packet has been sent.

Implementors§