net_device_operations Struct Reference

Network device operations. More...

#include <netdevice.h>

Data Fields
int(*	open )(struct net_device *netdev)
	Open network device.
void(*	close )(struct net_device *netdev)
	Close network device.
int(*	transmit )(struct net_device *netdev, struct io_buffer *iobuf)
	Transmit packet.
void(*	poll )(struct net_device *netdev)
	Poll for completed and received packets.
void(*	irq )(struct net_device *netdev, int enable)
	Enable or disable interrupts.

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Detailed Description

Network device operations.

Definition at line 172 of file netdevice.h.

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Field Documentation

int( * net_device_operations::open)(struct net_device *netdev)

Open network device.

Parameters:

netdev

Network device

Return values:

rc

Return status code

This method should allocate RX I/O buffers and enable the hardware to start transmitting and receiving packets.

Referenced by myri10ge_pci_probe(), and netdev_open().

void( * net_device_operations::close)(struct net_device *netdev)

Close network device.

Parameters:

netdev

Network device

This method should stop the flow of packets, and free up any packets that are currently in the device's TX queue.

Referenced by netdev_close().

int( * net_device_operations::transmit)(struct net_device *netdev, struct io_buffer *iobuf)

Transmit packet.

Parameters:

	netdev	Network device
	iobuf	I/O buffer

Return values:

rc

Return status code

This method should cause the hardware to initiate transmission of the I/O buffer.

If this method returns success, the I/O buffer remains owned by the net device's TX queue, and the net device must eventually call netdev_tx_complete() to free the buffer. If this method returns failure, the I/O buffer is immediately released; the failure is interpreted as "failure to enqueue buffer".

This method is guaranteed to be called only when the device is open.

Referenced by netdev_tx().

void( * net_device_operations::poll)(struct net_device *netdev)

Poll for completed and received packets.

Parameters:

netdev

Network device

This method should cause the hardware to check for completed transmissions and received packets. Any received packets should be delivered via netdev_rx().

This method is guaranteed to be called only when the device is open.

Referenced by netdev_poll().

void( * net_device_operations::irq)(struct net_device *netdev, int enable)

Enable or disable interrupts.

Parameters:

	netdev	Network device
	enable	Interrupts should be enabled

Referenced by netdev_irq().

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The documentation for this struct was generated from the following file:

• include/gpxe/netdevice.h