Struct IxgbeNetBuf 

pub struct IxgbeNetBuf { /* private fields */ }

A network buffer for the ixgbe driver.

IxgbeNetBuf wraps a packet buffer with a cleaner interface for use with the NicDevice trait. It provides access to packet data and metadata.

Implementations

impl IxgbeNetBuf

pub fn alloc(pool: &Arc<MemPool>, size: usize) -> IxgbeResult<Self>

Allocates a new network buffer from the memory pool.

Arguments

• pool - The memory pool to allocate from
• size - Size of the packet buffer in bytes

Errors

Returns IxgbeError::NoMemory if the allocation fails.

pub fn packet(&self) -> &[u8]

Returns an immutable reference to the packet data.

pub fn packet_mut(&mut self) -> &mut [u8]

Returns a mutable reference to the packet data.

pub fn packet_len(&self) -> usize

Returns the length of the packet data in bytes.

pub fn pool_entry(&self) -> usize

Returns the pool entry index for this packet.

pub fn construct( pool_entry: usize, pool: &Arc<MemPool>, len: usize, ) -> IxgbeResult<Self>

Constructs an IxgbeNetBuf from a specific pool entry.

This is used internally when receiving packets to wrap a buffer that was already allocated in the receive queue.

Arguments

• pool_entry - The index of the entry in the memory pool
• pool - The memory pool
• len - Length of the packet data

Safety

The caller must ensure that pool_entry is valid and the memory region is properly initialized.