Trait intel_ethernet::descriptors::RxDescriptor
source · pub trait RxDescriptor: FromBytes {
// Required methods
fn init(&mut self, packet_buffer_address: PhysicalAddress);
fn set_packet_address(&mut self, packet_buffer_address: PhysicalAddress);
fn reset_status(&mut self);
fn descriptor_done(&self) -> bool;
fn end_of_packet(&self) -> bool;
fn length(&self) -> u64;
}Expand description
A trait for the minimum set of functions needed to receive a packet using one of Intel’s receive descriptor types. Receive descriptors contain the physical address where an incoming packet should be stored by the NIC, as well as bits that are updated by the HW once the packet is received. There is one receive descriptor per receive buffer. Receive functions defined in the Network_Interface_Card crate expect a receive descriptor to implement this trait.
Required Methods§
sourcefn init(&mut self, packet_buffer_address: PhysicalAddress)
fn init(&mut self, packet_buffer_address: PhysicalAddress)
Initializes a receive descriptor by clearing its status and setting the descriptor’s physical address.
Arguments
packet_buffer_address: starting physical address of the receive buffer.
sourcefn set_packet_address(&mut self, packet_buffer_address: PhysicalAddress)
fn set_packet_address(&mut self, packet_buffer_address: PhysicalAddress)
Updates the descriptor’s physical address.
Arguments
packet_buffer_address: starting physical address of the receive buffer.
sourcefn reset_status(&mut self)
fn reset_status(&mut self)
Clears the status bits of the descriptor.
sourcefn descriptor_done(&self) -> bool
fn descriptor_done(&self) -> bool
Returns true if the descriptor has a received packet copied to its buffer.
sourcefn end_of_packet(&self) -> bool
fn end_of_packet(&self) -> bool
Returns true if the descriptor’s packet buffer is the last in a frame.