-/*-
- * BSD LICENSE
- *
- * Copyright(c) 2010-2012 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.
- *
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2010-2014 Intel Corporation
*/
#include <stdio.h>
#include <stdint.h>
-#include <cmdline_parse.h>
-
#include <rte_common.h>
#include <rte_cycles.h>
* Cycles test
* ===========
*
- * - Loop N times and check that the timer alway increments and
+ * - Loop N times and check that the timer always increments and
* never decrements during this loop.
*
* - Wait one second using rte_usleep() and check that the increment
* of cycles is correct with regard to the frequency of the timer.
*/
-int
+static int
+check_wait_one_second(void)
+{
+ uint64_t cycles, prev_cycles;
+ uint64_t hz = rte_get_timer_hz();
+ uint64_t max_inc = (hz / 100); /* 10 ms max between 2 reads */
+
+ /* check that waiting 1 second is precise */
+ prev_cycles = rte_get_timer_cycles();
+ rte_delay_us(1000000);
+ cycles = rte_get_timer_cycles();
+
+ if ((uint64_t)(cycles - prev_cycles) > (hz + max_inc)) {
+ printf("delay_us is not accurate: too long\n");
+ return -1;
+ }
+ if ((uint64_t)(cycles - prev_cycles) < (hz - max_inc)) {
+ printf("delay_us is not accurate: too short\n");
+ return -1;
+ }
+
+ return 0;
+}
+
+static int
test_cycles(void)
{
unsigned i;
uint64_t start_cycles, cycles, prev_cycles;
- uint64_t hz = rte_get_hpet_hz();
+ uint64_t hz = rte_get_timer_hz();
uint64_t max_inc = (hz / 100); /* 10 ms max between 2 reads */
/* check that the timer is always incrementing */
- start_cycles = rte_get_hpet_cycles();
+ start_cycles = rte_get_timer_cycles();
prev_cycles = start_cycles;
for (i=0; i<N; i++) {
- cycles = rte_get_hpet_cycles();
+ cycles = rte_get_timer_cycles();
if ((uint64_t)(cycles - prev_cycles) > max_inc) {
printf("increment too high or going backwards\n");
return -1;
prev_cycles = cycles;
}
- /* check that waiting 1 second is precise */
- prev_cycles = rte_get_hpet_cycles();
- rte_delay_us(1000000);
- cycles = rte_get_hpet_cycles();
- if ((uint64_t)(cycles - prev_cycles) > (hz + max_inc)) {
- printf("delay_us is not accurate\n");
+ return check_wait_one_second();
+}
+
+REGISTER_TEST_COMMAND(cycles_autotest, test_cycles);
+
+/*
+ * One second precision test with rte_delay_us_sleep.
+ */
+
+static int
+test_delay_us_sleep(void)
+{
+ rte_delay_us_callback_register(rte_delay_us_sleep);
+ return check_wait_one_second();
+}
+
+REGISTER_TEST_COMMAND(delay_us_sleep_autotest, test_delay_us_sleep);
+
+/*
+ * rte_delay_us_callback test
+ *
+ * - check if callback is correctly registered/unregistered
+ *
+ */
+
+static unsigned int pattern;
+static void my_rte_delay_us(unsigned int us)
+{
+ pattern += us;
+}
+
+static int
+test_user_delay_us(void)
+{
+ pattern = 0;
+
+ rte_delay_us(2);
+ if (pattern != 0)
return -1;
- }
- cycles = rte_get_hpet_cycles();
- if ((uint64_t)(cycles - prev_cycles) < (hz)) {
- printf("delay_us is not accurate\n");
+
+ /* register custom delay function */
+ rte_delay_us_callback_register(my_rte_delay_us);
+
+ rte_delay_us(2);
+ if (pattern != 2)
+ return -1;
+
+ rte_delay_us(3);
+ if (pattern != 5)
+ return -1;
+
+ /* restore original delay function */
+ rte_delay_us_callback_register(rte_delay_us_block);
+
+ rte_delay_us(3);
+ if (pattern != 5)
return -1;
- }
return 0;
}
+
+REGISTER_TEST_COMMAND(user_delay_us, test_user_delay_us);