--- /dev/null
+/*-
+ * 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"
+
+#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 (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;
+}
+
+static int
+test_power_acpi_cpufreq(void)
+{
+ int ret = -1;
+ enum power_management_env env;
+
+ ret = rte_power_set_env(PM_ENV_ACPI_CPUFREQ);
+ if (ret != 0) {
+ printf("Failed on setting environment to PM_ENV_ACPI_CPUFREQ, this "
+ "may occur if environment is not configured correctly or "
+ " operating in another valid Power management environment\n");
+ return -1;
+ }
+
+ /* Test environment configuration */
+ env = rte_power_get_env();
+ if (env != PM_ENV_ACPI_CPUFREQ) {
+ printf("Unexpectedly got an environment other than ACPI cpufreq\n");
+ goto fail_all;
+ }
+
+ /* verify that function pointers are not NULL */
+ if (rte_power_freqs == NULL) {
+ printf("rte_power_freqs should not be NULL, environment has not been "
+ "initialised\n");
+ goto fail_all;
+ }
+ if (rte_power_get_freq == NULL) {
+ printf("rte_power_get_freq should not be NULL, environment has not "
+ "been initialised\n");
+ goto fail_all;
+ }
+ if (rte_power_set_freq == NULL) {
+ printf("rte_power_set_freq should not be NULL, environment has not "
+ "been initialised\n");
+ goto fail_all;
+ }
+ if (rte_power_freq_up == NULL) {
+ printf("rte_power_freq_up should not be NULL, environment has not "
+ "been initialised\n");
+ goto fail_all;
+ }
+ if (rte_power_freq_down == NULL) {
+ printf("rte_power_freq_down should not be NULL, environment has not "
+ "been initialised\n");
+ goto fail_all;
+ }
+ if (rte_power_freq_max == NULL) {
+ printf("rte_power_freq_max should not be NULL, environment has not "
+ "been initialised\n");
+ goto fail_all;
+ }
+ if (rte_power_freq_min == NULL) {
+ printf("rte_power_freq_min should not be NULL, environment has not "
+ "been initialised\n");
+ goto fail_all;
+ }
+
+ /* 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);
+ rte_power_unset_env();
+ return -1;
+ }
+
+ /* Test initialisation of a valid lcore */
+ ret = rte_power_init(TEST_POWER_LCORE_ID);
+ if (ret < 0) {
+ printf("Cannot initialise power management for lcore %u, this "
+ "may occur if environment is not configured "
+ "correctly(APCI cpufreq) or operating in another valid "
+ "Power management environment\n", TEST_POWER_LCORE_ID);
+ rte_power_unset_env();
+ 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);
+ goto fail_all;
+ }
+
+ 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");
+ rte_power_unset_env();
+ 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);
+ rte_power_unset_env();
+ 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);
+ rte_power_unset_env();
+ 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);
+ rte_power_unset_env();
+ return -1;
+ }
+ rte_power_unset_env();
+ return 0;
+
+fail_all:
+ rte_power_exit(TEST_POWER_LCORE_ID);
+ rte_power_unset_env();
+ return -1;
+}
+
+static struct test_command power_acpi_cpufreq_cmd = {
+ .command = "power_acpi_cpufreq_autotest",
+ .callback = test_power_acpi_cpufreq,
+};
+REGISTER_TEST_COMMAND(power_acpi_cpufreq_cmd);
Code Review / deb_dpdk.git / blobdiff