rte_power_empty_poll.h File Reference

#include <stdint.h>
#include <stdbool.h>
#include <rte_common.h>
#include <rte_byteorder.h>
#include <rte_log.h>
#include <rte_string_fns.h>
#include <rte_power.h>
#include <rte_timer.h>

Go to the source code of this file.

Functions
__rte_experimental int	rte_power_empty_poll_stat_init (struct ep_params **eptr, uint8_t *freq_tlb, struct ep_policy *policy)
__rte_experimental void	rte_power_empty_poll_stat_free (void)
__rte_experimental int	rte_power_empty_poll_stat_update (unsigned int lcore_id)
__rte_experimental int	rte_power_poll_stat_update (unsigned int lcore_id, uint8_t nb_pkt)
__rte_experimental uint64_t	rte_power_empty_poll_stat_fetch (unsigned int lcore_id)
__rte_experimental uint64_t	rte_power_poll_stat_fetch (unsigned int lcore_id)
__rte_experimental void	rte_empty_poll_detection (struct rte_timer *tim, void *arg)

Detailed Description

RTE Power Management

Definition in file rte_power_empty_poll.h.

Function Documentation

rte_power_empty_poll_stat_init()

__rte_experimental int rte_power_empty_poll_stat_init	(	struct ep_params **	eptr,
		uint8_t *	freq_tlb,
		struct ep_policy *	policy
	)

Initialize the power management system.

Parameters

eptr	the structure of empty poll configuration
freq_tlb	the power state/frequency mapping table
policy	the initialization policy from sample app

Returns

• 0 on success.
• Negative on error.

Examples:

examples/l3fwd-power/main.c.

rte_power_empty_poll_stat_free()

__rte_experimental void rte_power_empty_poll_stat_free

(

void

)

Free the resource hold by power management system.

Examples:

examples/l3fwd-power/main.c.

rte_power_empty_poll_stat_update()

__rte_experimental int rte_power_empty_poll_stat_update

(

unsigned int

lcore_id

)

Update specific core empty poll counter It's not thread safe.

Parameters

lcore_id

lcore id

Returns

• 0 on success.
• Negative on error.

Examples:

examples/l3fwd-power/main.c.

rte_power_poll_stat_update()

__rte_experimental int rte_power_poll_stat_update	(	unsigned int	lcore_id,
		uint8_t	nb_pkt
	)

Update specific core valid poll counter, not thread safe.

Parameters

lcore_id	lcore id.
nb_pkt	The packet number of one valid poll.

Returns

• 0 on success.
• Negative on error.

Examples:

examples/l3fwd-power/main.c.

rte_power_empty_poll_stat_fetch()

__rte_experimental uint64_t rte_power_empty_poll_stat_fetch

(

unsigned int

lcore_id

)

Fetch specific core empty poll counter.

Parameters

lcore_id

lcore id

Returns

Current lcore empty poll counter value.

rte_power_poll_stat_fetch()

__rte_experimental uint64_t rte_power_poll_stat_fetch

(

unsigned int

lcore_id

)

Fetch specific core valid poll counter.

Parameters

lcore_id

lcore id

Returns

Current lcore valid poll counter value.

rte_empty_poll_detection()

__rte_experimental void rte_empty_poll_detection	(	struct rte_timer *	tim,
		void *	arg
	)

Empty poll state change detection function

Parameters

tim	The timer structure
arg	The customized parameter

Examples:

examples/l3fwd-power/main.c.