5e1f62fb1a
rename private header file rte_power_kvm_vm.c to power_kvm_vm.c. This prevents the private functions from leaking into the documentation. Change any private functions from rte_<function_name> to just <function_name>. Reserve the rte_ for public functions Signed-off-by: Marko Kovacevic <marko.kovacevic@intel.com> Acked-by: David Hunt <david.hunt@intel.com>
127 lines
2.9 KiB
C
127 lines
2.9 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause
|
|
* Copyright(c) 2010-2014 Intel Corporation
|
|
*/
|
|
#include <errno.h>
|
|
#include <string.h>
|
|
|
|
#include <rte_log.h>
|
|
|
|
#include "guest_channel.h"
|
|
#include "channel_commands.h"
|
|
#include "power_kvm_vm.h"
|
|
#include "power_common.h"
|
|
|
|
#define FD_PATH "/dev/virtio-ports/virtio.serial.port.poweragent"
|
|
|
|
static struct channel_packet pkt[CHANNEL_CMDS_MAX_VM_CHANNELS];
|
|
|
|
|
|
int
|
|
power_kvm_vm_init(unsigned int lcore_id)
|
|
{
|
|
if (lcore_id >= CHANNEL_CMDS_MAX_VM_CHANNELS) {
|
|
RTE_LOG(ERR, POWER, "Core(%u) is out of range 0...%d\n",
|
|
lcore_id, CHANNEL_CMDS_MAX_VM_CHANNELS-1);
|
|
return -1;
|
|
}
|
|
pkt[lcore_id].command = CPU_POWER;
|
|
pkt[lcore_id].resource_id = lcore_id;
|
|
return guest_channel_host_connect(FD_PATH, lcore_id);
|
|
}
|
|
|
|
int
|
|
power_kvm_vm_exit(unsigned int lcore_id)
|
|
{
|
|
guest_channel_host_disconnect(lcore_id);
|
|
return 0;
|
|
}
|
|
|
|
uint32_t
|
|
power_kvm_vm_freqs(__attribute__((unused)) unsigned int lcore_id,
|
|
__attribute__((unused)) uint32_t *freqs,
|
|
__attribute__((unused)) uint32_t num)
|
|
{
|
|
RTE_LOG(ERR, POWER, "rte_power_freqs is not implemented "
|
|
"for Virtual Machine Power Management\n");
|
|
return -ENOTSUP;
|
|
}
|
|
|
|
uint32_t
|
|
power_kvm_vm_get_freq(__attribute__((unused)) unsigned int lcore_id)
|
|
{
|
|
RTE_LOG(ERR, POWER, "rte_power_get_freq is not implemented "
|
|
"for Virtual Machine Power Management\n");
|
|
return -ENOTSUP;
|
|
}
|
|
|
|
int
|
|
power_kvm_vm_set_freq(__attribute__((unused)) unsigned int lcore_id,
|
|
__attribute__((unused)) uint32_t index)
|
|
{
|
|
RTE_LOG(ERR, POWER, "rte_power_set_freq is not implemented "
|
|
"for Virtual Machine Power Management\n");
|
|
return -ENOTSUP;
|
|
}
|
|
|
|
static inline int
|
|
send_msg(unsigned int lcore_id, uint32_t scale_direction)
|
|
{
|
|
int ret;
|
|
|
|
if (lcore_id >= CHANNEL_CMDS_MAX_VM_CHANNELS) {
|
|
RTE_LOG(ERR, POWER, "Core(%u) is out of range 0...%d\n",
|
|
lcore_id, CHANNEL_CMDS_MAX_VM_CHANNELS-1);
|
|
return -1;
|
|
}
|
|
pkt[lcore_id].unit = scale_direction;
|
|
ret = guest_channel_send_msg(&pkt[lcore_id], lcore_id);
|
|
if (ret == 0)
|
|
return 1;
|
|
RTE_LOG(DEBUG, POWER, "Error sending message: %s\n",
|
|
ret > 0 ? strerror(ret) : "channel not connected");
|
|
return -1;
|
|
}
|
|
|
|
int
|
|
power_kvm_vm_freq_up(unsigned int lcore_id)
|
|
{
|
|
return send_msg(lcore_id, CPU_POWER_SCALE_UP);
|
|
}
|
|
|
|
int
|
|
power_kvm_vm_freq_down(unsigned int lcore_id)
|
|
{
|
|
return send_msg(lcore_id, CPU_POWER_SCALE_DOWN);
|
|
}
|
|
|
|
int
|
|
power_kvm_vm_freq_max(unsigned int lcore_id)
|
|
{
|
|
return send_msg(lcore_id, CPU_POWER_SCALE_MAX);
|
|
}
|
|
|
|
int
|
|
power_kvm_vm_freq_min(unsigned int lcore_id)
|
|
{
|
|
return send_msg(lcore_id, CPU_POWER_SCALE_MIN);
|
|
}
|
|
|
|
int
|
|
power_kvm_vm_turbo_status(__attribute__((unused)) unsigned int lcore_id)
|
|
{
|
|
RTE_LOG(ERR, POWER, "rte_power_turbo_status is not implemented for Virtual Machine Power Management\n");
|
|
return -ENOTSUP;
|
|
}
|
|
|
|
int
|
|
power_kvm_vm_enable_turbo(unsigned int lcore_id)
|
|
{
|
|
return send_msg(lcore_id, CPU_POWER_ENABLE_TURBO);
|
|
}
|
|
|
|
int
|
|
power_kvm_vm_disable_turbo(unsigned int lcore_id)
|
|
{
|
|
return send_msg(lcore_id, CPU_POWER_DISABLE_TURBO);
|
|
}
|