net_if_dev Struct Reference

Network Interface Device structure. More...

#include <net_if.h>

Data Fields
const struct device *	dev
	The actually device driver instance the net_if is related to.
const struct net_l2 *const	l2
	Interface's L2 layer.
void *	l2_data
	Interface's private L2 data pointer.
atomic_t	flags [ATOMIC_BITMAP_SIZE(NET_IF_NUM_FLAGS)]
	For internal use.
struct net_linkaddr	link_addr
	The hardware link address.
uint16_t	mtu
	The hardware MTU.
enum net_if_oper_state	oper_state
	RFC 2863 operational status.
int64_t	oper_state_change_time
	Last time the operational state was changed.

Detailed Description

Network Interface Device structure.

Used to handle a network interface on top of a device driver instance. There can be many net_if_dev instance against the same device.

Such interface is mainly to be used by the link layer, but is also tight to a network context: it then makes the relation with a network context and the network device.

Because of the strong relationship between a device driver and such network interface, each net_if_dev should be instantiated by one of the network device init macros found in net_if.h.

Field Documentation

dev

const struct device* net_if_dev::dev

The actually device driver instance the net_if is related to.

flags

atomic_t net_if_dev::flags[ATOMIC_BITMAP_SIZE(NET_IF_NUM_FLAGS)]

For internal use.

l2

const struct net_l2* const net_if_dev::l2

Interface's L2 layer.

l2_data

void* net_if_dev::l2_data

Interface's private L2 data pointer.

link_addr

struct net_linkaddr net_if_dev::link_addr

The hardware link address.

mtu

uint16_t net_if_dev::mtu

The hardware MTU.

oper_state

enum net_if_oper_state net_if_dev::oper_state

RFC 2863 operational status.

oper_state_change_time

int64_t net_if_dev::oper_state_change_time

Last time the operational state was changed.

This is used to determine how long the interface has been in the current operational state.

This value is set to 0 when the interface is created, and then updated whenever the operational state changes.

The value is in milliseconds since boot.

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

• zephyr/net/net_if.h