Imported Upstream version 16.04

Change-Id: I77eadcd8538a9122e4773cbe55b24033dc451757
Signed-off-by: C.J. Collier <cjcollier@linuxfoundation.org>

1 files changed, 260 insertions, 0 deletions

diff --git a/app/test/test_alarm.c b/app/test/test_alarm.c
new file mode 100644
index 00000000..5d6f4a27
--- /dev/null
+++ b/app/test/test_alarm.c
@@ -0,0 +1,260 @@
+/*-
+ *   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 <rte_common.h>
+#include <rte_cycles.h>
+#include <rte_interrupts.h>
+#include <rte_common.h>
+#include <rte_atomic.h>
+#include <rte_alarm.h>
+
+#include "test.h"
+
+#define US_PER_MS 1000
+
+#define RTE_TEST_ALARM_TIMEOUT 3000 /* ms */
+#define RTE_TEST_CHECK_PERIOD  1000 /* ms */
+
+static volatile int flag;
+
+static void
+test_alarm_callback(void *cb_arg)
+{
+	flag = 1;
+	printf("Callback setting flag - OK. [cb_arg = %p]\n", cb_arg);
+}
+
+static rte_atomic32_t cb_count;
+
+static void
+test_multi_cb(void *arg)
+{
+	rte_atomic32_inc(&cb_count);
+	printf("In %s - arg = %p\n", __func__, arg);
+}
+
+static volatile int recursive_error = 0;
+
+static void
+test_remove_in_callback(void *arg)
+{
+	printf("In %s - arg = %p\n", __func__, arg);
+	if (rte_eal_alarm_cancel(test_remove_in_callback, arg) ||
+			rte_eal_alarm_cancel(test_remove_in_callback, (void *)-1)) {
+		printf("Error - cancelling callback from within function succeeded!\n");
+		recursive_error = 1;
+	}
+	flag = (int)((uintptr_t)arg);
+}
+
+static volatile int flag_2;
+
+static void
+test_remove_in_callback_2(void *arg)
+{
+	if (rte_eal_alarm_cancel(test_remove_in_callback_2, arg) || rte_eal_alarm_cancel(test_remove_in_callback_2, (void *)-1)) {
+		printf("Error - cancelling callback of test_remove_in_callback_2\n");
+		return;
+	}
+	flag_2 = 1;
+}
+
+static int
+test_multi_alarms(void)
+{
+	int rm_count = 0;
+	cb_count.cnt = 0;
+
+	printf("Expect 6 callbacks in order...\n");
+	/* add two alarms in order */
+	rte_eal_alarm_set(1000 * US_PER_MS, test_multi_cb, (void *)1);
+	rte_eal_alarm_set(2000 * US_PER_MS, test_multi_cb, (void *)2);
+
+	/* now add in reverse order */
+	rte_eal_alarm_set(6000 * US_PER_MS, test_multi_cb, (void *)6);
+	rte_eal_alarm_set(5000 * US_PER_MS, test_multi_cb, (void *)5);
+	rte_eal_alarm_set(4000 * US_PER_MS, test_multi_cb, (void *)4);
+	rte_eal_alarm_set(3000 * US_PER_MS, test_multi_cb, (void *)3);
+
+	/* wait for expiry */
+	rte_delay_ms(6500);
+	if (cb_count.cnt != 6) {
+		printf("Missing callbacks\n");
+		/* remove any callbacks that might remain */
+		rte_eal_alarm_cancel(test_multi_cb, (void *)-1);
+		return -1;
+	}
+
+	cb_count.cnt = 0;
+	printf("Expect only callbacks with args 1 and 3...\n");
+	/* Add 3 flags, then delete one */
+	rte_eal_alarm_set(3000 * US_PER_MS, test_multi_cb, (void *)3);
+	rte_eal_alarm_set(2000 * US_PER_MS, test_multi_cb, (void *)2);
+	rte_eal_alarm_set(1000 * US_PER_MS, test_multi_cb, (void *)1);
+	rm_count = rte_eal_alarm_cancel(test_multi_cb, (void *)2);
+
+	rte_delay_ms(3500);
+	if (cb_count.cnt != 2 || rm_count != 1) {
+		printf("Error: invalid flags count or alarm removal failure"
+				" -  flags value = %d, expected = %d\n",
+				(int)cb_count.cnt, 2);
+		/* remove any callbacks that might remain */
+		rte_eal_alarm_cancel(test_multi_cb, (void *)-1);
+		return -1;
+	}
+
+	printf("Testing adding and then removing multiple alarms\n");
+	/* finally test that no callbacks are called if we delete them all*/
+	rte_eal_alarm_set(1000 * US_PER_MS, test_multi_cb, (void *)1);
+	rte_eal_alarm_set(1000 * US_PER_MS, test_multi_cb, (void *)2);
+	rte_eal_alarm_set(1000 * US_PER_MS, test_multi_cb, (void *)3);
+	rm_count = rte_eal_alarm_cancel(test_alarm_callback, (void *)-1);
+	if (rm_count != 0) {
+		printf("Error removing non-existant alarm succeeded\n");
+		rte_eal_alarm_cancel(test_multi_cb, (void *) -1);
+		return -1;
+	}
+	rm_count = rte_eal_alarm_cancel(test_multi_cb, (void *) -1);
+	if (rm_count != 3) {
+		printf("Error removing all pending alarm callbacks\n");
+		return -1;
+	}
+
+	/* Test that we cannot cancel an alarm from within the callback itself
+	 * Also test that we can cancel head-of-line callbacks ok.*/
+	flag = 0;
+	recursive_error = 0;
+	rte_eal_alarm_set(1000 * US_PER_MS, test_remove_in_callback, (void *)1);
+	rte_eal_alarm_set(2000 * US_PER_MS, test_remove_in_callback, (void *)2);
+	rm_count = rte_eal_alarm_cancel(test_remove_in_callback, (void *)1);
+	if (rm_count != 1) {
+		printf("Error cancelling head-of-list callback\n");
+		return -1;
+	}
+	rte_delay_ms(1500);
+	if (flag != 0) {
+		printf("Error, cancelling head-of-list leads to premature callback\n");
+		return -1;
+	}
+	rte_delay_ms(1000);
+	if (flag != 2) {
+		printf("Error - expected callback not called\n");
+		rte_eal_alarm_cancel(test_remove_in_callback, (void *)-1);
+		return -1;
+	}
+	if (recursive_error == 1)
+		return -1;
+
+	/* Check if it can cancel all for the same callback */
+	printf("Testing canceling all for the same callback\n");
+	flag_2 = 0;
+	rte_eal_alarm_set(1000 * US_PER_MS, test_remove_in_callback, (void *)1);
+	rte_eal_alarm_set(2000 * US_PER_MS, test_remove_in_callback_2, (void *)2);
+	rte_eal_alarm_set(3000 * US_PER_MS, test_remove_in_callback_2, (void *)3);
+	rte_eal_alarm_set(4000 * US_PER_MS, test_remove_in_callback, (void *)4);
+	rm_count = rte_eal_alarm_cancel(test_remove_in_callback_2, (void *)-1);
+	if (rm_count != 2) {
+		printf("Error, cannot cancel all for the same callback\n");
+		return -1;
+	}
+	rm_count = rte_eal_alarm_cancel(test_remove_in_callback, (void *)-1);
+	if (rm_count != 2) {
+		printf("Error, cannot cancel all for the same callback\n");
+		return -1;
+	}
+
+	return 0;
+}
+
+static int
+test_alarm(void)
+{
+	int count = 0;
+
+	/* check if the callback will be called */
+	printf("check if the callback will be called\n");
+	flag = 0;
+	if (rte_eal_alarm_set(RTE_TEST_ALARM_TIMEOUT * US_PER_MS,
+			test_alarm_callback, NULL) < 0) {
+		printf("fail to set alarm callback\n");
+		return -1;
+	}
+	while (flag == 0 && count ++ < 6)
+		rte_delay_ms(RTE_TEST_CHECK_PERIOD);
+
+	if (flag == 0){
+		printf("Callback not called\n");
+		return -1;
+	}
+
+	/* check if it will fail to set alarm with wrong us value */
+	printf("check if it will fail to set alarm with wrong ms values\n");
+	if (rte_eal_alarm_set(0, test_alarm_callback,
+						NULL) >= 0) {
+		printf("should not be successful with 0 us value\n");
+		return -1;
+	}
+	if (rte_eal_alarm_set(UINT64_MAX - 1, test_alarm_callback,
+						NULL) >= 0) {
+		printf("should not be successful with (UINT64_MAX-1) us value\n");
+		return -1;
+	}
+
+	/* check if it will fail to set alarm with null callback parameter */
+	printf("check if it will fail to set alarm with null callback parameter\n");
+	if (rte_eal_alarm_set(RTE_TEST_ALARM_TIMEOUT, NULL, NULL) >= 0) {
+		printf("should not be successful to set alarm with null callback parameter\n");
+		return -1;
+	}
+
+	/* check if it will fail to remove alarm with null callback parameter */
+	printf("check if it will fail to remove alarm with null callback parameter\n");
+	if (rte_eal_alarm_cancel(NULL, NULL) == 0) {
+		printf("should not be successful to remove alarm with null callback parameter");
+		return -1;
+	}
+
+	if (test_multi_alarms() != 0)
+		return -1;
+
+	return 0;
+}
+
+static struct test_command alarm_cmd = {
+	.command = "alarm_autotest",
+	.callback = test_alarm,
+};
+REGISTER_TEST_COMMAND(alarm_cmd);