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Elixir Cross Referencer

/*-
 *   BSD LICENSE
 * 
 *   Copyright(c) 2010-2013 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_memory.h>
#include <rte_common.h>

#include "test.h"

/*
 * Memory
 * ======
 *
 * - Dump the mapped memory. The python-expect script checks that at
 *   least one line is dumped.
 *
 * - Check that memory size is different than 0.
 *
 * - Try to read all memory; it should not segfault.
 */

int
test_memory(void)
{
	uint64_t s;
	unsigned i, j;
	const struct rte_memseg *mem;

	/*
	 * dump the mapped memory: the python-expect script checks
	 * that at least one line is dumped
	 */
	printf("Dump memory layout\n");
	rte_dump_physmem_layout();

	/* check that memory size is != 0 */
	s = rte_eal_get_physmem_size();
	if (s == 0) {
		printf("No memory detected\n");
		return -1;
	}

	/* try to read memory (should not segfault) */
	mem = rte_eal_get_physmem_layout();
	for (i = 0; i < RTE_MAX_MEMSEG && mem[i].addr != NULL ; i++) {

		/* check memory */
		for (j = 0; j<mem[i].len; j++) {
			*((volatile uint8_t *) mem[i].addr + j);
		}
	}

	return 0;
}