X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=app%2Ftest%2Ftest_mempool.c;fp=app%2Ftest%2Ftest_mempool.c;h=f0f823b9ebb98d480a77ca69b51b7e3d0af489d1;hb=97f17497d162afdb82c8704bf097f0fee3724b2e;hp=0000000000000000000000000000000000000000;hpb=e04be89c2409570e0055b2cda60bd11395bb93b0;p=deb_dpdk.git

diff --git a/app/test/test_mempool.c b/app/test/test_mempool.c
new file mode 100644
index 00000000..f0f823b9
--- /dev/null
+++ b/app/test/test_mempool.c
@@ -0,0 +1,528 @@
+/*-
+ *   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 <string.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <stdarg.h>
+#include <errno.h>
+#include <sys/queue.h>
+
+#include <rte_common.h>
+#include <rte_log.h>
+#include <rte_debug.h>
+#include <rte_memory.h>
+#include <rte_memzone.h>
+#include <rte_launch.h>
+#include <rte_cycles.h>
+#include <rte_eal.h>
+#include <rte_per_lcore.h>
+#include <rte_lcore.h>
+#include <rte_atomic.h>
+#include <rte_branch_prediction.h>
+#include <rte_ring.h>
+#include <rte_mempool.h>
+#include <rte_spinlock.h>
+#include <rte_malloc.h>
+
+#include "test.h"
+
+/*
+ * Mempool
+ * =======
+ *
+ * Basic tests: done on one core with and without cache:
+ *
+ *    - Get one object, put one object
+ *    - Get two objects, put two objects
+ *    - Get all objects, test that their content is not modified and
+ *      put them back in the pool.
+ */
+
+#define N 65536
+#define TIME_S 5
+#define MEMPOOL_ELT_SIZE 2048
+#define MAX_KEEP 128
+#define MEMPOOL_SIZE ((rte_lcore_count()*(MAX_KEEP+RTE_MEMPOOL_CACHE_MAX_SIZE))-1)
+
+static struct rte_mempool *mp;
+static struct rte_mempool *mp_cache, *mp_nocache;
+
+static rte_atomic32_t synchro;
+
+
+
+/*
+ * save the object number in the first 4 bytes of object data. All
+ * other bytes are set to 0.
+ */
+static void
+my_obj_init(struct rte_mempool *mp, __attribute__((unused)) void *arg,
+	    void *obj, unsigned i)
+{
+	uint32_t *objnum = obj;
+	memset(obj, 0, mp->elt_size);
+	*objnum = i;
+}
+
+/* basic tests (done on one core) */
+static int
+test_mempool_basic(void)
+{
+	uint32_t *objnum;
+	void **objtable;
+	void *obj, *obj2;
+	char *obj_data;
+	int ret = 0;
+	unsigned i, j;
+
+	/* dump the mempool status */
+	rte_mempool_dump(stdout, mp);
+
+	printf("get an object\n");
+	if (rte_mempool_get(mp, &obj) < 0)
+		return -1;
+	rte_mempool_dump(stdout, mp);
+
+	/* tests that improve coverage */
+	printf("get object count\n");
+	if (rte_mempool_count(mp) != MEMPOOL_SIZE - 1)
+		return -1;
+
+	printf("get private data\n");
+	if (rte_mempool_get_priv(mp) !=
+			(char*) mp + MEMPOOL_HEADER_SIZE(mp, mp->pg_num))
+		return -1;
+
+	printf("get physical address of an object\n");
+	if (MEMPOOL_IS_CONTIG(mp) &&
+			rte_mempool_virt2phy(mp, obj) !=
+			(phys_addr_t) (mp->phys_addr +
+			(phys_addr_t) ((char*) obj - (char*) mp)))
+		return -1;
+
+	printf("put the object back\n");
+	rte_mempool_put(mp, obj);
+	rte_mempool_dump(stdout, mp);
+
+	printf("get 2 objects\n");
+	if (rte_mempool_get(mp, &obj) < 0)
+		return -1;
+	if (rte_mempool_get(mp, &obj2) < 0) {
+		rte_mempool_put(mp, obj);
+		return -1;
+	}
+	rte_mempool_dump(stdout, mp);
+
+	printf("put the objects back\n");
+	rte_mempool_put(mp, obj);
+	rte_mempool_put(mp, obj2);
+	rte_mempool_dump(stdout, mp);
+
+	/*
+	 * get many objects: we cannot get them all because the cache
+	 * on other cores may not be empty.
+	 */
+	objtable = malloc(MEMPOOL_SIZE * sizeof(void *));
+	if (objtable == NULL) {
+		return -1;
+	}
+
+	for (i=0; i<MEMPOOL_SIZE; i++) {
+		if (rte_mempool_get(mp, &objtable[i]) < 0)
+			break;
+	}
+
+	/*
+	 * for each object, check that its content was not modified,
+	 * and put objects back in pool
+	 */
+	while (i--) {
+		obj = objtable[i];
+		obj_data = obj;
+		objnum = obj;
+		if (*objnum > MEMPOOL_SIZE) {
+			printf("bad object number\n");
+			ret = -1;
+			break;
+		}
+		for (j=sizeof(*objnum); j<mp->elt_size; j++) {
+			if (obj_data[j] != 0)
+				ret = -1;
+		}
+
+		rte_mempool_put(mp, objtable[i]);
+	}
+
+	free(objtable);
+	if (ret == -1)
+		printf("objects were modified!\n");
+
+	return ret;
+}
+
+static int test_mempool_creation_with_exceeded_cache_size(void)
+{
+	struct rte_mempool *mp_cov;
+
+	mp_cov = rte_mempool_create("test_mempool_creation_with_exceeded_cache_size", MEMPOOL_SIZE,
+					      MEMPOOL_ELT_SIZE,
+					      RTE_MEMPOOL_CACHE_MAX_SIZE + 32, 0,
+					      NULL, NULL,
+					      my_obj_init, NULL,
+					      SOCKET_ID_ANY, 0);
+	if(NULL != mp_cov) {
+		return -1;
+	}
+
+	return 0;
+}
+
+static struct rte_mempool *mp_spsc;
+static rte_spinlock_t scsp_spinlock;
+static void *scsp_obj_table[MAX_KEEP];
+
+/*
+ * single producer function
+ */
+static int test_mempool_single_producer(void)
+{
+	unsigned int i;
+	void *obj = NULL;
+	uint64_t start_cycles, end_cycles;
+	uint64_t duration = rte_get_timer_hz() * 8;
+
+	start_cycles = rte_get_timer_cycles();
+	while (1) {
+		end_cycles = rte_get_timer_cycles();
+		/* duration uses up, stop producing */
+		if (start_cycles + duration < end_cycles)
+			break;
+		rte_spinlock_lock(&scsp_spinlock);
+		for (i = 0; i < MAX_KEEP; i ++) {
+			if (NULL != scsp_obj_table[i]) {
+				obj = scsp_obj_table[i];
+				break;
+			}
+		}
+		rte_spinlock_unlock(&scsp_spinlock);
+		if (i >= MAX_KEEP) {
+			continue;
+		}
+		if (rte_mempool_from_obj(obj) != mp_spsc) {
+			printf("test_mempool_single_producer there is an obj not owned by this mempool\n");
+			return -1;
+		}
+		rte_mempool_sp_put(mp_spsc, obj);
+		rte_spinlock_lock(&scsp_spinlock);
+		scsp_obj_table[i] = NULL;
+		rte_spinlock_unlock(&scsp_spinlock);
+	}
+
+	return 0;
+}
+
+/*
+ * single consumer function
+ */
+static int test_mempool_single_consumer(void)
+{
+	unsigned int i;
+	void * obj;
+	uint64_t start_cycles, end_cycles;
+	uint64_t duration = rte_get_timer_hz() * 5;
+
+	start_cycles = rte_get_timer_cycles();
+	while (1) {
+		end_cycles = rte_get_timer_cycles();
+		/* duration uses up, stop consuming */
+		if (start_cycles + duration < end_cycles)
+			break;
+		rte_spinlock_lock(&scsp_spinlock);
+		for (i = 0; i < MAX_KEEP; i ++) {
+			if (NULL == scsp_obj_table[i])
+				break;
+		}
+		rte_spinlock_unlock(&scsp_spinlock);
+		if (i >= MAX_KEEP)
+			continue;
+		if (rte_mempool_sc_get(mp_spsc, &obj) < 0)
+			break;
+		rte_spinlock_lock(&scsp_spinlock);
+		scsp_obj_table[i] = obj;
+		rte_spinlock_unlock(&scsp_spinlock);
+	}
+
+	return 0;
+}
+
+/*
+ * test function for mempool test based on singple consumer and single producer, can run on one lcore only
+ */
+static int test_mempool_launch_single_consumer(__attribute__((unused)) void *arg)
+{
+	return test_mempool_single_consumer();
+}
+
+static void my_mp_init(struct rte_mempool * mp, __attribute__((unused)) void * arg)
+{
+	printf("mempool name is %s\n", mp->name);
+	/* nothing to be implemented here*/
+	return ;
+}
+
+/*
+ * it tests the mempool operations based on singple producer and single consumer
+ */
+static int
+test_mempool_sp_sc(void)
+{
+	int ret = 0;
+	unsigned lcore_id = rte_lcore_id();
+	unsigned lcore_next;
+
+	/* create a mempool with single producer/consumer ring */
+	if (NULL == mp_spsc) {
+		mp_spsc = rte_mempool_create("test_mempool_sp_sc", MEMPOOL_SIZE,
+						MEMPOOL_ELT_SIZE, 0, 0,
+						my_mp_init, NULL,
+						my_obj_init, NULL,
+						SOCKET_ID_ANY, MEMPOOL_F_NO_CACHE_ALIGN | MEMPOOL_F_SP_PUT | MEMPOOL_F_SC_GET);
+		if (NULL == mp_spsc) {
+			return -1;
+		}
+	}
+	if (rte_mempool_lookup("test_mempool_sp_sc") != mp_spsc) {
+		printf("Cannot lookup mempool from its name\n");
+		return -1;
+	}
+	lcore_next = rte_get_next_lcore(lcore_id, 0, 1);
+	if (RTE_MAX_LCORE <= lcore_next)
+		return -1;
+	if (rte_eal_lcore_role(lcore_next) != ROLE_RTE)
+		return -1;
+	rte_spinlock_init(&scsp_spinlock);
+	memset(scsp_obj_table, 0, sizeof(scsp_obj_table));
+	rte_eal_remote_launch(test_mempool_launch_single_consumer, NULL, lcore_next);
+	if(test_mempool_single_producer() < 0)
+		ret = -1;
+
+	if(rte_eal_wait_lcore(lcore_next) < 0)
+		ret = -1;
+
+	return ret;
+}
+
+/*
+ * it tests some more basic of mempool
+ */
+static int
+test_mempool_basic_ex(struct rte_mempool * mp)
+{
+	unsigned i;
+	void **obj;
+	void *err_obj;
+	int ret = -1;
+
+	if (mp == NULL)
+		return ret;
+
+	obj = rte_calloc("test_mempool_basic_ex", MEMPOOL_SIZE , sizeof(void *), 0);
+	if (obj == NULL) {
+		printf("test_mempool_basic_ex fail to rte_malloc\n");
+		return ret;
+	}
+	printf("test_mempool_basic_ex now mempool (%s) has %u free entries\n", mp->name, rte_mempool_free_count(mp));
+	if (rte_mempool_full(mp) != 1) {
+		printf("test_mempool_basic_ex the mempool is not full but it should be\n");
+		goto fail_mp_basic_ex;
+	}
+
+	for (i = 0; i < MEMPOOL_SIZE; i ++) {
+		if (rte_mempool_mc_get(mp, &obj[i]) < 0) {
+			printf("fail_mp_basic_ex fail to get mempool object for [%u]\n", i);
+			goto fail_mp_basic_ex;
+		}
+	}
+	if (rte_mempool_mc_get(mp, &err_obj) == 0) {
+		printf("test_mempool_basic_ex get an impossible obj from mempool\n");
+		goto fail_mp_basic_ex;
+	}
+	printf("number: %u\n", i);
+	if (rte_mempool_empty(mp) != 1) {
+		printf("test_mempool_basic_ex the mempool is not empty but it should be\n");
+		goto fail_mp_basic_ex;
+	}
+
+	for (i = 0; i < MEMPOOL_SIZE; i ++) {
+		rte_mempool_mp_put(mp, obj[i]);
+	}
+	if (rte_mempool_full(mp) != 1) {
+		printf("test_mempool_basic_ex the mempool is not full but it should be\n");
+		goto fail_mp_basic_ex;
+	}
+
+	ret = 0;
+
+fail_mp_basic_ex:
+	if (obj != NULL)
+		rte_free((void *)obj);
+
+	return ret;
+}
+
+static int
+test_mempool_same_name_twice_creation(void)
+{
+	struct rte_mempool *mp_tc;
+
+	mp_tc = rte_mempool_create("test_mempool_same_name_twice_creation", MEMPOOL_SIZE,
+						MEMPOOL_ELT_SIZE, 0, 0,
+						NULL, NULL,
+						NULL, NULL,
+						SOCKET_ID_ANY, 0);
+	if (NULL == mp_tc)
+		return -1;
+
+	mp_tc = rte_mempool_create("test_mempool_same_name_twice_creation", MEMPOOL_SIZE,
+						MEMPOOL_ELT_SIZE, 0, 0,
+						NULL, NULL,
+						NULL, NULL,
+						SOCKET_ID_ANY, 0);
+	if (NULL != mp_tc)
+		return -1;
+
+	return 0;
+}
+
+/*
+ * BAsic test for mempool_xmem functions.
+ */
+static int
+test_mempool_xmem_misc(void)
+{
+	uint32_t elt_num, total_size;
+	size_t sz;
+	ssize_t usz;
+
+	elt_num = MAX_KEEP;
+	total_size = rte_mempool_calc_obj_size(MEMPOOL_ELT_SIZE, 0, NULL);
+	sz = rte_mempool_xmem_size(elt_num, total_size, MEMPOOL_PG_SHIFT_MAX);
+
+	usz = rte_mempool_xmem_usage(NULL, elt_num, total_size, 0, 1,
+		MEMPOOL_PG_SHIFT_MAX);
+
+	if(sz != (size_t)usz)  {
+		printf("failure @ %s: rte_mempool_xmem_usage(%u, %u) "
+			"returns: %#zx, while expected: %#zx;\n",
+			__func__, elt_num, total_size, sz, (size_t)usz);
+		return -1;
+	}
+
+	return 0;
+}
+
+static int
+test_mempool(void)
+{
+	rte_atomic32_init(&synchro);
+
+	/* create a mempool (without cache) */
+	if (mp_nocache == NULL)
+		mp_nocache = rte_mempool_create("test_nocache", MEMPOOL_SIZE,
+						MEMPOOL_ELT_SIZE, 0, 0,
+						NULL, NULL,
+						my_obj_init, NULL,
+						SOCKET_ID_ANY, 0);
+	if (mp_nocache == NULL)
+		return -1;
+
+	/* create a mempool (with cache) */
+	if (mp_cache == NULL)
+		mp_cache = rte_mempool_create("test_cache", MEMPOOL_SIZE,
+					      MEMPOOL_ELT_SIZE,
+					      RTE_MEMPOOL_CACHE_MAX_SIZE, 0,
+					      NULL, NULL,
+					      my_obj_init, NULL,
+					      SOCKET_ID_ANY, 0);
+	if (mp_cache == NULL)
+		return -1;
+
+
+	/* retrieve the mempool from its name */
+	if (rte_mempool_lookup("test_nocache") != mp_nocache) {
+		printf("Cannot lookup mempool from its name\n");
+		return -1;
+	}
+
+	rte_mempool_list_dump(stdout);
+
+	/* basic tests without cache */
+	mp = mp_nocache;
+	if (test_mempool_basic() < 0)
+		return -1;
+
+	/* basic tests with cache */
+	mp = mp_cache;
+	if (test_mempool_basic() < 0)
+		return -1;
+
+	/* more basic tests without cache */
+	if (test_mempool_basic_ex(mp_nocache) < 0)
+		return -1;
+
+	/* mempool operation test based on single producer and single comsumer */
+	if (test_mempool_sp_sc() < 0)
+		return -1;
+
+	if (test_mempool_creation_with_exceeded_cache_size() < 0)
+		return -1;
+
+	if (test_mempool_same_name_twice_creation() < 0)
+		return -1;
+
+	if (test_mempool_xmem_misc() < 0)
+		return -1;
+
+	rte_mempool_list_dump(stdout);
+
+	return 0;
+}
+
+static struct test_command mempool_cmd = {
+	.command = "mempool_autotest",
+	.callback = test_mempool,
+};
+REGISTER_TEST_COMMAND(mempool_cmd);