rte_power_kvm_vm.h File Reference

#include <rte_common.h>
#include <rte_byteorder.h>
#include <rte_log.h>
#include <rte_string_fns.h>

Functions
int	rte_power_kvm_vm_init (unsigned lcore_id)
int	rte_power_kvm_vm_exit (unsigned lcore_id)
uint32_t	rte_power_kvm_vm_freqs (unsigned lcore_id, uint32_t *freqs, uint32_t num)
uint32_t	rte_power_kvm_vm_get_freq (unsigned lcore_id)
int	rte_power_kvm_vm_set_freq (unsigned lcore_id, uint32_t index)
int	rte_power_kvm_vm_freq_up (unsigned lcore_id)
int	rte_power_kvm_vm_freq_down (unsigned lcore_id)
int	rte_power_kvm_vm_freq_max (unsigned lcore_id)
int	rte_power_kvm_vm_freq_min (unsigned lcore_id)

Detailed Description

RTE Power Management KVM VM

Function Documentation

int rte_power_kvm_vm_exit

(

unsigned

lcore_id

)

Exit power management on a specific lcore.

Parameters

lcore_id

lcore id.

Returns

• 0 on success.
• Negative on error.

int rte_power_kvm_vm_freq_down

(

unsigned

lcore_id

)

Scale down the frequency of a specific lcore according to the available frequencies. It should be protected outside of this function for threadsafe.

Parameters

lcore_id

lcore id.

Returns

• 1 on success.
• Negative on error.

int rte_power_kvm_vm_freq_max

(

unsigned

lcore_id

)

Scale up the frequency of a specific lcore to the highest according to the available frequencies. It should be protected outside of this function for threadsafe.

Parameters

lcore_id

lcore id.

Returns

• 1 on success.
• Negative on error.

int rte_power_kvm_vm_freq_min

(

unsigned

lcore_id

)

Scale down the frequency of a specific lcore to the lowest according to the available frequencies. It should be protected outside of this function for threadsafe.

Parameters

lcore_id

lcore id.

Returns

• 1 on success.
• Negative on error.

int rte_power_kvm_vm_freq_up

(

unsigned

lcore_id

)

Scale up the frequency of a specific lcore. This request is forwarded to the host monitor. It should be protected outside of this function for threadsafe.

Parameters

lcore_id

lcore id.

Returns

• 1 on success.
• Negative on error.

uint32_t rte_power_kvm_vm_freqs	(	unsigned	lcore_id,
		uint32_t *	freqs,
		uint32_t	num
	)

Get the available frequencies of a specific lcore. It is not currently supported for VM Power Management.

Parameters

lcore_id	lcore id.
freqs	The buffer array to save the frequencies.
num	The number of frequencies to get.

Returns

-ENOTSUP

uint32_t rte_power_kvm_vm_get_freq

(

unsigned

lcore_id

)

Return the current index of available frequencies of a specific lcore. It is not currently supported for VM Power Management.

Parameters

lcore_id

lcore id.

Returns

-ENOTSUP

int rte_power_kvm_vm_init

(

unsigned

lcore_id

)

Initialize power management for a specific lcore.

Parameters

lcore_id

lcore id.

Returns

• 0 on success.
• Negative on error.

int rte_power_kvm_vm_set_freq	(	unsigned	lcore_id,
		uint32_t	index
	)

Set the new frequency for a specific lcore by indicating the index of available frequencies. It is not currently supported for VM Power Management.

Parameters

lcore_id	lcore id.
index	The index of available frequencies.

Returns

-ENOTSUP