1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
|
/*-
* BSD LICENSE
*
* Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _RTE_POWER_KVM_VM_H
#define _RTE_POWER_KVM_VM_H
/**
* @file
* RTE Power Management KVM VM
*/
#include <rte_common.h>
#include <rte_byteorder.h>
#include <rte_log.h>
#include <rte_string_fns.h>
#ifdef __cplusplus
extern "C" {
#endif
/**
* Initialize power management for a specific lcore.
*
* @param lcore_id
* lcore id.
*
* @return
* - 0 on success.
* - Negative on error.
*/
int rte_power_kvm_vm_init(unsigned lcore_id);
/**
* Exit power management on a specific lcore.
*
* @param lcore_id
* lcore id.
*
* @return
* - 0 on success.
* - Negative on error.
*/
int rte_power_kvm_vm_exit(unsigned lcore_id);
/**
* Get the available frequencies of a specific lcore.
* It is not currently supported for VM Power Management.
*
* @param lcore_id
* lcore id.
* @param freqs
* The buffer array to save the frequencies.
* @param num
* The number of frequencies to get.
*
* @return
* -ENOTSUP
*/
uint32_t rte_power_kvm_vm_freqs(unsigned lcore_id, uint32_t *freqs,
uint32_t num);
/**
* Return the current index of available frequencies of a specific lcore.
* It is not currently supported for VM Power Management.
*
* @param lcore_id
* lcore id.
*
* @return
* -ENOTSUP
*/
uint32_t rte_power_kvm_vm_get_freq(unsigned lcore_id);
/**
* Set the new frequency for a specific lcore by indicating the index of
* available frequencies.
* It is not currently supported for VM Power Management.
*
* @param lcore_id
* lcore id.
* @param index
* The index of available frequencies.
*
* @return
* -ENOTSUP
*/
int rte_power_kvm_vm_set_freq(unsigned lcore_id, uint32_t index);
/**
* 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.
*
* @param lcore_id
* lcore id.
*
* @return
* - 1 on success.
* - Negative on error.
*/
int rte_power_kvm_vm_freq_up(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.
*
* @param lcore_id
* lcore id.
*
* @return
* - 1 on success.
* - Negative on error.
*/
int rte_power_kvm_vm_freq_down(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.
*
* @param lcore_id
* lcore id.
*
* @return
* - 1 on success.
* - Negative on error.
*/
int rte_power_kvm_vm_freq_max(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.
*
* @param lcore_id
* lcore id.
*
* @return
* - 1 on success.
* - Negative on error.
*/
int rte_power_kvm_vm_freq_min(unsigned lcore_id);
#ifdef __cplusplus
}
#endif
#endif
|
