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21a7f4e264
numam-dpdk/app/test/test_power.c
Thomas Monjalon 21a7f4e264 app/test: fix build without librte_cmdline 
Some features are not available if LIBRTE_CMDLINE is disabled:
- interactive commands
- cmdline tests
Remove also cmdline_parse includes which are not needed.

Signed-off-by: Thomas Monjalon <thomas.monjalon@6wind.com>
Acked-by: Olivier Matz <olivier.matz@6wind.com>
2014-02-26 11:07:29 +01:00

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/*-
* 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.
*/
#include <stdio.h>
#include <stdint.h>
#include <unistd.h>
#include <limits.h>
#include <string.h>
#include "test.h"
#ifdef RTE_LIBRTE_POWER
#include <rte_power.h>
#define TEST_POWER_LCORE_ID 2U
#define TEST_POWER_LCORE_INVALID ((unsigned)RTE_MAX_LCORE)
#define TEST_POWER_FREQS_NUM_MAX ((unsigned)RTE_MAX_LCORE_FREQS)
#define TEST_POWER_SYSFILE_CUR_FREQ \
"/sys/devices/system/cpu/cpu%u/cpufreq/scaling_cur_freq"
static uint32_t total_freq_num;
static uint32_t freqs[TEST_POWER_FREQS_NUM_MAX];
static int
check_cur_freq(unsigned lcore_id, uint32_t idx)
{
#define TEST_POWER_CONVERT_TO_DECIMAL 10
FILE *f;
char fullpath[PATH_MAX];
char buf[BUFSIZ];
uint32_t cur_freq;
int ret = -1;
if (rte_snprintf(fullpath, sizeof(fullpath),
TEST_POWER_SYSFILE_CUR_FREQ, lcore_id) < 0) {
return 0;
}
f = fopen(fullpath, "r");
if (f == NULL) {
return 0;
}
if (fgets(buf, sizeof(buf), f) == NULL) {
goto fail_get_cur_freq;
}
cur_freq = strtoul(buf, NULL, TEST_POWER_CONVERT_TO_DECIMAL);
ret = (freqs[idx] == cur_freq ? 0 : -1);
fail_get_cur_freq:
fclose(f);
return ret;
}
/* Check rte_power_freqs() */
static int
check_power_freqs(void)
{
uint32_t ret;
total_freq_num = 0;
memset(freqs, 0, sizeof(freqs));
/* test with an invalid lcore id */
ret = rte_power_freqs(TEST_POWER_LCORE_INVALID, freqs,
TEST_POWER_FREQS_NUM_MAX);
if (ret > 0) {
printf("Unexpectedly get available freqs successfully on "
"lcore %u\n", TEST_POWER_LCORE_INVALID);
return -1;
}
/* test with NULL buffer to save available freqs */
ret = rte_power_freqs(TEST_POWER_LCORE_ID, NULL,
TEST_POWER_FREQS_NUM_MAX);
if (ret > 0) {
printf("Unexpectedly get available freqs successfully with "
"NULL buffer on lcore %u\n", TEST_POWER_LCORE_ID);
return -1;
}
/* test of getting zero number of freqs */
ret = rte_power_freqs(TEST_POWER_LCORE_ID, freqs, 0);
if (ret > 0) {
printf("Unexpectedly get available freqs successfully with "
"zero buffer size on lcore %u\n", TEST_POWER_LCORE_ID);
return -1;
}
/* test with all valid input parameters */
ret = rte_power_freqs(TEST_POWER_LCORE_ID, freqs,
TEST_POWER_FREQS_NUM_MAX);
if (ret == 0 || ret > TEST_POWER_FREQS_NUM_MAX) {
printf("Fail to get available freqs on lcore %u\n",
TEST_POWER_LCORE_ID);
return -1;
}
/* Save the total number of available freqs */
total_freq_num = ret;
return 0;
}
/* Check rte_power_get_freq() */
static int
check_power_get_freq(void)
{
int ret;
uint32_t count;
/* test with an invalid lcore id */
count = rte_power_get_freq(TEST_POWER_LCORE_INVALID);
if (count < TEST_POWER_FREQS_NUM_MAX) {
printf("Unexpectedly get freq index successfully on "
"lcore %u\n", TEST_POWER_LCORE_INVALID);
return -1;
}
count = rte_power_get_freq(TEST_POWER_LCORE_ID);
if (count >= TEST_POWER_FREQS_NUM_MAX) {
printf("Fail to get the freq index on lcore %u\n",
TEST_POWER_LCORE_ID);
return -1;
}
/* Check the current frequency */
ret = check_cur_freq(TEST_POWER_LCORE_ID, count);
if (ret < 0)
return -1;
return 0;
}
/* Check rte_power_set_freq() */
static int
check_power_set_freq(void)
{
int ret;
/* test with an invalid lcore id */
ret = rte_power_set_freq(TEST_POWER_LCORE_INVALID, 0);
if (ret >= 0) {
printf("Unexpectedly set freq index successfully on "
"lcore %u\n", TEST_POWER_LCORE_INVALID);
return -1;
}
/* test with an invalid freq index */
ret = rte_power_set_freq(TEST_POWER_LCORE_ID,
TEST_POWER_FREQS_NUM_MAX);
if (ret >= 0) {
printf("Unexpectedly set an invalid freq index (%u)"
"successfully on lcore %u\n", TEST_POWER_FREQS_NUM_MAX,
TEST_POWER_LCORE_ID);
return -1;
}
/**
* test with an invalid freq index which is right one bigger than
* total number of freqs
*/
ret = rte_power_set_freq(TEST_POWER_LCORE_ID, total_freq_num);
if (ret >= 0) {
printf("Unexpectedly set an invalid freq index (%u)"
"successfully on lcore %u\n", total_freq_num,
TEST_POWER_LCORE_ID);
return -1;
}
ret = rte_power_set_freq(TEST_POWER_LCORE_ID, total_freq_num - 1);
if (ret < 0) {
printf("Fail to set freq index on lcore %u\n",
TEST_POWER_LCORE_ID);
return -1;
}
/* Check the current frequency */
ret = check_cur_freq(TEST_POWER_LCORE_ID, total_freq_num - 1);
if (ret < 0)
return -1;
return 0;
}
/* Check rte_power_freq_down() */
static int
check_power_freq_down(void)
{
int ret;
/* test with an invalid lcore id */
ret = rte_power_freq_down(TEST_POWER_LCORE_INVALID);
if (ret >= 0) {
printf("Unexpectedly scale down successfully the freq on "
"lcore %u\n", TEST_POWER_LCORE_INVALID);
return -1;
}
/* Scale down to min and then scale down one step */
ret = rte_power_freq_min(TEST_POWER_LCORE_ID);
if (ret < 0) {
printf("Fail to scale down the freq to min on lcore %u\n",
TEST_POWER_LCORE_ID);
return -1;
}
ret = rte_power_freq_down(TEST_POWER_LCORE_ID);
if (ret < 0) {
printf("Fail to scale down the freq on lcore %u\n",
TEST_POWER_LCORE_ID);
return -1;
}
/* Check the current frequency */
ret = check_cur_freq(TEST_POWER_LCORE_ID, total_freq_num - 1);
if (ret < 0)
return -1;
/* Scale up to max and then scale down one step */
ret = rte_power_freq_max(TEST_POWER_LCORE_ID);
if (ret < 0) {
printf("Fail to scale up the freq to max on lcore %u\n",
TEST_POWER_LCORE_ID);
return -1;
}
ret = rte_power_freq_down(TEST_POWER_LCORE_ID);
if (ret < 0) {
printf ("Fail to scale down the freq on lcore %u\n",
TEST_POWER_LCORE_ID);
return -1;
}
/* Check the current frequency */
ret = check_cur_freq(TEST_POWER_LCORE_ID, 1);
if (ret < 0)
return -1;
return 0;
}
/* Check rte_power_freq_up() */
static int
check_power_freq_up(void)
{
int ret;
/* test with an invalid lcore id */
ret = rte_power_freq_up(TEST_POWER_LCORE_INVALID);
if (ret >= 0) {
printf("Unexpectedly scale up successfully the freq on %u\n",
TEST_POWER_LCORE_INVALID);
return -1;
}
/* Scale down to min and then scale up one step */
ret = rte_power_freq_min(TEST_POWER_LCORE_ID);
if (ret < 0) {
printf("Fail to scale down the freq to min on lcore %u\n",
TEST_POWER_LCORE_ID);
return -1;
}
ret = rte_power_freq_up(TEST_POWER_LCORE_ID);
if (ret < 0) {
printf("Fail to scale up the freq on lcore %u\n",
TEST_POWER_LCORE_ID);
return -1;
}
/* Check the current frequency */
ret = check_cur_freq(TEST_POWER_LCORE_ID, total_freq_num - 2);
if (ret < 0)
return -1;
/* Scale up to max and then scale up one step */
ret = rte_power_freq_max(TEST_POWER_LCORE_ID);
if (ret < 0) {
printf("Fail to scale up the freq to max on lcore %u\n",
TEST_POWER_LCORE_ID);
return -1;
}
ret = rte_power_freq_up(TEST_POWER_LCORE_ID);
if (ret < 0) {
printf("Fail to scale up the freq on lcore %u\n",
TEST_POWER_LCORE_ID);
return -1;
}
/* Check the current frequency */
ret = check_cur_freq(TEST_POWER_LCORE_ID, 0);
if (ret < 0)
return -1;
return 0;
}
/* Check rte_power_freq_max() */
static int
check_power_freq_max(void)
{
int ret;
/* test with an invalid lcore id */
ret = rte_power_freq_max(TEST_POWER_LCORE_INVALID);
if (ret >= 0) {
printf("Unexpectedly scale up successfully the freq to max on "
"lcore %u\n", TEST_POWER_LCORE_INVALID);
return -1;
}
ret = rte_power_freq_max(TEST_POWER_LCORE_ID);
if (ret < 0) {
printf("Fail to scale up the freq to max on lcore %u\n",
TEST_POWER_LCORE_ID);
return -1;
}
/* Check the current frequency */
ret = check_cur_freq(TEST_POWER_LCORE_ID, 0);
if (ret < 0)
return -1;
return 0;
}
/* Check rte_power_freq_min() */
static int
check_power_freq_min(void)
{
int ret;
/* test with an invalid lcore id */
ret = rte_power_freq_min(TEST_POWER_LCORE_INVALID);
if (ret >= 0) {
printf("Unexpectedly scale down successfully the freq to min "
"on lcore %u\n", TEST_POWER_LCORE_INVALID);
return -1;
}
ret = rte_power_freq_min(TEST_POWER_LCORE_ID);
if (ret < 0) {
printf("Fail to scale down the freq to min on lcore %u\n",
TEST_POWER_LCORE_ID);
return -1;
}
/* Check the current frequency */
ret = check_cur_freq(TEST_POWER_LCORE_ID, total_freq_num - 1);
if (ret < 0)
return -1;
return 0;
}
int
test_power(void)
{
int ret = -1;
/* test of init power management for an invalid lcore */
ret = rte_power_init(TEST_POWER_LCORE_INVALID);
if (ret == 0) {
printf("Unexpectedly initialise power management successfully "
"for lcore %u\n", TEST_POWER_LCORE_INVALID);
return -1;
}
ret = rte_power_init(TEST_POWER_LCORE_ID);
if (ret < 0) {
printf("Cannot initialise power management for lcore %u\n",
TEST_POWER_LCORE_ID);
return -1;
}
/**
* test of initialising power management for the lcore which has
* been initialised
*/
ret = rte_power_init(TEST_POWER_LCORE_ID);
if (ret == 0) {
printf("Unexpectedly init successfully power twice on "
"lcore %u\n", TEST_POWER_LCORE_ID);
return -1;
}
ret = check_power_freqs();
if (ret < 0)
goto fail_all;
if (total_freq_num < 2) {
rte_power_exit(TEST_POWER_LCORE_ID);
printf("Frequency can not be changed due to CPU itself\n");
return 0;
}
ret = check_power_get_freq();
if (ret < 0)
goto fail_all;
ret = check_power_set_freq();
if (ret < 0)
goto fail_all;
ret = check_power_freq_down();
if (ret < 0)
goto fail_all;
ret = check_power_freq_up();
if (ret < 0)
goto fail_all;
ret = check_power_freq_max();
if (ret < 0)
goto fail_all;
ret = check_power_freq_min();
if (ret < 0)
goto fail_all;
ret = rte_power_exit(TEST_POWER_LCORE_ID);
if (ret < 0) {
printf("Cannot exit power management for lcore %u\n",
TEST_POWER_LCORE_ID);
return -1;
}
/**
* test of exiting power management for the lcore which has been exited
*/
ret = rte_power_exit(TEST_POWER_LCORE_ID);
if (ret == 0) {
printf("Unexpectedly exit successfully power management twice "
"on lcore %u\n", TEST_POWER_LCORE_ID);
return -1;
}
/* test of exit power management for an invalid lcore */
ret = rte_power_exit(TEST_POWER_LCORE_INVALID);
if (ret == 0) {
printf("Unpectedly exit power management successfully for "
"lcore %u\n", TEST_POWER_LCORE_INVALID);
return -1;
}
return 0;
fail_all:
rte_power_exit(TEST_POWER_LCORE_ID);
return -1;
}
#else /* RTE_LIBRTE_POWER */
int
test_power(void)
{
printf("The power library is not included in this build\n");
return 0;
}
#endif /* RTE_LIBRTE_POWER */
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