rte_interrupts.h File Reference

#include <exec-env/rte_interrupts.h>

Typedefs
typedef void(*	rte_intr_callback_fn )(struct rte_intr_handle *intr_handle, void *cb_arg)

Functions
int	rte_intr_callback_register (struct rte_intr_handle *intr_handle, rte_intr_callback_fn cb, void *cb_arg)
int	rte_intr_callback_unregister (struct rte_intr_handle *intr_handle, rte_intr_callback_fn cb, void *cb_arg)
int	rte_intr_enable (struct rte_intr_handle *intr_handle)
int	rte_intr_disable (struct rte_intr_handle *intr_handle)

Detailed Description

The RTE interrupt interface provides functions to register/unregister callbacks for a specific interrupt.

Typedef Documentation

typedef void(* rte_intr_callback_fn)(struct rte_intr_handle *intr_handle, void *cb_arg)

Function to be registered for the specific interrupt

Function Documentation

int rte_intr_callback_register	(	struct rte_intr_handle *	intr_handle,
		rte_intr_callback_fn	cb,
		void *	cb_arg
	)

It registers the callback for the specific interrupt. Multiple callbacks cal be registered at the same time.

Parameters

intr_handle	Pointer to the interrupt handle.
cb	callback address.
cb_arg	address of parameter for callback.

Returns

• On success, zero.
• On failure, a negative value.

int rte_intr_callback_unregister	(	struct rte_intr_handle *	intr_handle,
		rte_intr_callback_fn	cb,
		void *	cb_arg
	)

It unregisters the callback according to the specified interrupt handle.

Parameters

intr_handle	pointer to the interrupt handle.
cb	callback address.
cb_arg	address of parameter for callback, (void *)-1 means to remove all registered which has the same callback address.

Returns

• On success, return the number of callback entities removed.
• On failure, a negative value.

int rte_intr_disable

(

struct rte_intr_handle *

intr_handle

)

It disables the interrupt for the specified handle.

Parameters

intr_handle

pointer to the interrupt handle.

Returns

• On success, zero.
• On failure, a negative value.

int rte_intr_enable

(

struct rte_intr_handle *

intr_handle

)

It enables the interrupt for the specified handle.

Parameters

intr_handle

pointer to the interrupt handle.

Returns

• On success, zero.
• On failure, a negative value.