Spdk/test/lib/env/vtophys/vtophys.c
Daniel Verkamp 7336c0036e env/vtophys: combine DPDK physical address lookups
vtophys_get_paddr() and vtophys_get_dpdk_paddr() are doing similar
things; combine them into one function that works for all DPDK
memory addresses.

Part of the vtophys test is temporarily disabled until the next commit,
which will register all DPDK memory at startup and stop lookiing up
addresses at runtime.

Change-Id: I91312837aa1e6170bacaf3b0d2adbdc4391d3afa
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2017-02-23 14:22:58 -07:00

135 lines
3.3 KiB
C

/*-
* BSD LICENSE
*
* Copyright (c) Intel Corporation.
* 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 <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "spdk/env.h"
static int
vtophys_negative_test(void)
{
#if 0
void *p = NULL;
int i;
unsigned int size = 1;
#endif
int rc = 0;
#if 0 /* Temporarily disabled until DPDK memory is registered at startup */
for (i = 0; i < 31; i++) {
p = malloc(size);
if (p == NULL)
continue;
if (spdk_vtophys(p) != SPDK_VTOPHYS_ERROR) {
rc = -1;
printf("Err: VA=%p is mapped to a huge_page,\n", p);
free(p);
break;
}
free(p);
size = size << 1;
}
#endif
/* Test addresses that are not in the valid x86-64 usermode range */
if (spdk_vtophys((void *)0x0000800000000000ULL) != SPDK_VTOPHYS_ERROR) {
rc = -1;
printf("Err: kernel-mode address incorrectly allowed\n");
}
if (!rc)
printf("vtophys_negative_test passed\n");
else
printf("vtophys_negative_test failed\n");
return rc;
}
static int
vtophys_positive_test(void)
{
void *p = NULL;
int i;
unsigned int size = 1;
int rc = 0;
for (i = 0; i < 31; i++) {
p = spdk_zmalloc(size, 512, NULL);
if (p == NULL)
continue;
if (spdk_vtophys(p) == SPDK_VTOPHYS_ERROR) {
rc = -1;
printf("Err: VA=%p is not mapped to a huge_page,\n", p);
spdk_free(p);
break;
}
spdk_free(p);
size = size << 1;
}
if (!rc)
printf("vtophys_positive_test passed\n");
else
printf("vtophys_positive_test failed\n");
return rc;
}
int
main(int argc, char **argv)
{
int rc;
struct spdk_env_opts opts;
spdk_env_opts_init(&opts);
opts.name = "vtophys";
opts.core_mask = "0x1";
spdk_env_init(&opts);
rc = vtophys_negative_test();
if (rc < 0)
return rc;
rc = vtophys_positive_test();
return rc;
}