X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=app%2Ftest%2Ftest_cycles.c;h=66d11e6db8922aa9e27fc9f89e95b4f240623b47;hb=7df485eb3d56fbe5e6fcd160d33ca971bc3d3572;hp=f48040204d8327e0e385692a46456dac4d2990fd;hpb=af75078fece3615088e561357c1e97603e43a5fe;p=dpdk.git

diff --git a/app/test/test_cycles.c b/app/test/test_cycles.c
index f48040204d..66d11e6db8 100644
--- a/app/test/test_cycles.c
+++ b/app/test/test_cycles.c
@@ -1,94 +1,56 @@
-/*-
- *   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.
- * 
- *  version: DPDK.L.1.2.3-3
+/* 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>
 
 #include "test.h"
 
-#define N 10000
-
 /*
- * Cycles test
- * ===========
+ * rte_delay_us_callback test
  *
- * - Loop N times and check that the timer alway increments and
- *   never decrements during this loop.
+ * - check if callback is correctly registered/unregistered
  *
- * - Wait one second using rte_usleep() and check that the increment
- *   of cycles is correct with regard to the frequency of the timer.
  */
 
-int
-test_cycles(void)
+static unsigned int pattern;
+static void my_rte_delay_us(unsigned int us)
+{
+	pattern += us;
+}
+
+static int
+test_user_delay_us(void)
 {
-	unsigned i;
-	uint64_t start_cycles, cycles, prev_cycles;
-	uint64_t hz = rte_get_hpet_hz();
-	uint64_t max_inc = (hz / 100); /* 10 ms max between 2 reads */
+	pattern = 0;
+
+	rte_delay_us(2);
+	if (pattern != 0)
+		return -1;
+
+	/* register custom delay function */
+	rte_delay_us_callback_register(my_rte_delay_us);
 
-	/* check that the timer is always incrementing */
-	start_cycles = rte_get_hpet_cycles();
-	prev_cycles = start_cycles;
-	for (i=0; i<N; i++) {
-		cycles = rte_get_hpet_cycles();
-		if ((uint64_t)(cycles - prev_cycles) > max_inc) {
-			printf("increment too high or going backwards\n");
-			return -1;
-		}
-		prev_cycles = cycles;
-	}
+	rte_delay_us(2);
+	if (pattern != 2)
+		return -1;
 
-	/* 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");
+	rte_delay_us(3);
+	if (pattern != 5)
 		return -1;
-	}
-	cycles = rte_get_hpet_cycles();
-	if ((uint64_t)(cycles - prev_cycles) < (hz)) {
-		printf("delay_us is not accurate\n");
+
+	/* 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);