numam-dpdk/app/test/test_ivshmem.c
Sergio Gonzalez Monroy fdf20fa7be add prefix to cache line macros
CACHE_LINE_SIZE is a macro defined in machine/param.h in FreeBSD and
conflicts with DPDK macro version.
Adding RTE_ prefix to avoid conflicts.
CACHE_LINE_MASK and CACHE_LINE_ROUNDUP are also prefixed.

Signed-off-by: Sergio Gonzalez Monroy <sergio.gonzalez.monroy@intel.com>
[Thomas: updated on HEAD, including PPC]
2014-11-27 16:21:11 +01:00

438 lines
12 KiB
C

/*-
* 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 <fcntl.h>
#include <limits.h>
#include <unistd.h>
#include <string.h>
#include <sys/mman.h>
#include <sys/wait.h>
#include <stdio.h>
#include <cmdline_parse.h>
#include "test.h"
#include <rte_common.h>
#include <rte_ivshmem.h>
#include <rte_string_fns.h>
#include "process.h"
#define DUPLICATE_METADATA "duplicate"
#define METADATA_NAME "metadata"
#define NONEXISTENT_METADATA "nonexistent"
#define FIRST_TEST 'a'
#define launch_proc(ARGV) process_dup(ARGV, \
sizeof(ARGV)/(sizeof(ARGV[0])), "test_ivshmem")
#define ASSERT(cond,msg) do { \
if (!(cond)) { \
printf("**** TEST %s() failed: %s\n", \
__func__, msg); \
return -1; \
} \
} while(0)
static char*
get_current_prefix(char * prefix, int size)
{
char path[PATH_MAX] = {0};
char buf[PATH_MAX] = {0};
/* get file for config (fd is always 3) */
snprintf(path, sizeof(path), "/proc/self/fd/%d", 3);
/* return NULL on error */
if (readlink(path, buf, sizeof(buf)) == -1)
return NULL;
/* get the basename */
snprintf(buf, sizeof(buf), "%s", basename(buf));
/* copy string all the way from second char up to start of _config */
snprintf(prefix, size, "%.*s",
(int)(strnlen(buf, sizeof(buf)) - sizeof("_config")),
&buf[1]);
return prefix;
}
static struct rte_ivshmem_metadata*
mmap_metadata(const char *name)
{
int fd;
char pathname[PATH_MAX];
struct rte_ivshmem_metadata *metadata;
snprintf(pathname, sizeof(pathname),
"/var/run/.dpdk_ivshmem_metadata_%s", name);
fd = open(pathname, O_RDWR, 0660);
if (fd < 0)
return NULL;
metadata = (struct rte_ivshmem_metadata*) mmap(NULL,
sizeof(struct rte_ivshmem_metadata), PROT_READ | PROT_WRITE,
MAP_SHARED, fd, 0);
if (metadata == MAP_FAILED)
return NULL;
close(fd);
return metadata;
}
static int
create_duplicate(void)
{
/* create a metadata that another process will then try to overwrite */
ASSERT (rte_ivshmem_metadata_create(DUPLICATE_METADATA) == 0,
"Creating metadata failed");
return 0;
}
static int
test_ivshmem_create_lots_of_memzones(void)
{
int i;
char name[IVSHMEM_NAME_LEN];
const struct rte_memzone *mz;
ASSERT(rte_ivshmem_metadata_create(METADATA_NAME) == 0,
"Failed to create metadata");
for (i = 0; i < RTE_LIBRTE_IVSHMEM_MAX_ENTRIES; i++) {
snprintf(name, sizeof(name), "mz_%i", i);
mz = rte_memzone_reserve(name, RTE_CACHE_LINE_SIZE, SOCKET_ID_ANY, 0);
ASSERT(mz != NULL, "Failed to reserve memzone");
ASSERT(rte_ivshmem_metadata_add_memzone(mz, METADATA_NAME) == 0,
"Failed to add memzone");
}
mz = rte_memzone_reserve("one too many", RTE_CACHE_LINE_SIZE, SOCKET_ID_ANY, 0);
ASSERT(mz != NULL, "Failed to reserve memzone");
ASSERT(rte_ivshmem_metadata_add_memzone(mz, METADATA_NAME) < 0,
"Metadata should have been full");
return 0;
}
static int
test_ivshmem_create_duplicate_memzone(void)
{
const struct rte_memzone *mz;
ASSERT(rte_ivshmem_metadata_create(METADATA_NAME) == 0,
"Failed to create metadata");
mz = rte_memzone_reserve("mz", RTE_CACHE_LINE_SIZE, SOCKET_ID_ANY, 0);
ASSERT(mz != NULL, "Failed to reserve memzone");
ASSERT(rte_ivshmem_metadata_add_memzone(mz, METADATA_NAME) == 0,
"Failed to add memzone");
ASSERT(rte_ivshmem_metadata_add_memzone(mz, METADATA_NAME) < 0,
"Added the same memzone twice");
return 0;
}
static int
test_ivshmem_api_test(void)
{
const struct rte_memzone * mz;
struct rte_mempool * mp;
struct rte_ring * r;
char buf[BUFSIZ];
memset(buf, 0, sizeof(buf));
r = rte_ring_create("ring", 1, SOCKET_ID_ANY, 0);
mp = rte_mempool_create("mempool", 1, 1, 1, 1, NULL, NULL, NULL, NULL,
SOCKET_ID_ANY, 0);
mz = rte_memzone_reserve("memzone", 64, SOCKET_ID_ANY, 0);
ASSERT(r != NULL, "Failed to create ring");
ASSERT(mp != NULL, "Failed to create mempool");
ASSERT(mz != NULL, "Failed to reserve memzone");
/* try to create NULL metadata */
ASSERT(rte_ivshmem_metadata_create(NULL) < 0,
"Created metadata with NULL name");
/* create valid metadata to do tests on */
ASSERT(rte_ivshmem_metadata_create(METADATA_NAME) == 0,
"Failed to create metadata");
/* test adding memzone */
ASSERT(rte_ivshmem_metadata_add_memzone(NULL, NULL) < 0,
"Added NULL memzone to NULL metadata");
ASSERT(rte_ivshmem_metadata_add_memzone(NULL, METADATA_NAME) < 0,
"Added NULL memzone");
ASSERT(rte_ivshmem_metadata_add_memzone(mz, NULL) < 0,
"Added memzone to NULL metadata");
ASSERT(rte_ivshmem_metadata_add_memzone(mz, NONEXISTENT_METADATA) < 0,
"Added memzone to nonexistent metadata");
/* test adding ring */
ASSERT(rte_ivshmem_metadata_add_ring(NULL, NULL) < 0,
"Added NULL ring to NULL metadata");
ASSERT(rte_ivshmem_metadata_add_ring(NULL, METADATA_NAME) < 0,
"Added NULL ring");
ASSERT(rte_ivshmem_metadata_add_ring(r, NULL) < 0,
"Added ring to NULL metadata");
ASSERT(rte_ivshmem_metadata_add_ring(r, NONEXISTENT_METADATA) < 0,
"Added ring to nonexistent metadata");
/* test adding mempool */
ASSERT(rte_ivshmem_metadata_add_mempool(NULL, NULL) < 0,
"Added NULL mempool to NULL metadata");
ASSERT(rte_ivshmem_metadata_add_mempool(NULL, METADATA_NAME) < 0,
"Added NULL mempool");
ASSERT(rte_ivshmem_metadata_add_mempool(mp, NULL) < 0,
"Added mempool to NULL metadata");
ASSERT(rte_ivshmem_metadata_add_mempool(mp, NONEXISTENT_METADATA) < 0,
"Added mempool to nonexistent metadata");
/* test creating command line */
ASSERT(rte_ivshmem_metadata_cmdline_generate(NULL, sizeof(buf), METADATA_NAME) < 0,
"Written command line into NULL buffer");
ASSERT(strnlen(buf, sizeof(buf)) == 0, "Buffer is not empty");
ASSERT(rte_ivshmem_metadata_cmdline_generate(buf, 0, METADATA_NAME) < 0,
"Written command line into small buffer");
ASSERT(strnlen(buf, sizeof(buf)) == 0, "Buffer is not empty");
ASSERT(rte_ivshmem_metadata_cmdline_generate(buf, sizeof(buf), NULL) < 0,
"Written command line for NULL metadata");
ASSERT(strnlen(buf, sizeof(buf)) == 0, "Buffer is not empty");
ASSERT(rte_ivshmem_metadata_cmdline_generate(buf, sizeof(buf),
NONEXISTENT_METADATA) < 0,
"Writen command line for nonexistent metadata");
ASSERT(strnlen(buf, sizeof(buf)) == 0, "Buffer is not empty");
/* add stuff to config */
ASSERT(rte_ivshmem_metadata_add_memzone(mz, METADATA_NAME) == 0,
"Failed to add memzone to valid config");
ASSERT(rte_ivshmem_metadata_add_ring(r, METADATA_NAME) == 0,
"Failed to add ring to valid config");
ASSERT(rte_ivshmem_metadata_add_mempool(mp, METADATA_NAME) == 0,
"Failed to add mempool to valid config");
/* create config */
ASSERT(rte_ivshmem_metadata_cmdline_generate(buf, sizeof(buf),
METADATA_NAME) == 0, "Failed to write command-line");
/* check if something was written */
ASSERT(strnlen(buf, sizeof(buf)) != 0, "Buffer is empty");
/* make sure we don't segfault */
rte_ivshmem_metadata_dump(stdout, NULL);
/* dump our metadata */
rte_ivshmem_metadata_dump(stdout, METADATA_NAME);
return 0;
}
static int
test_ivshmem_create_duplicate_metadata(void)
{
ASSERT(rte_ivshmem_metadata_create(DUPLICATE_METADATA) < 0,
"Creating duplicate metadata should have failed");
return 0;
}
static int
test_ivshmem_create_metadata_config(void)
{
struct rte_ivshmem_metadata *metadata;
rte_ivshmem_metadata_create(METADATA_NAME);
metadata = mmap_metadata(METADATA_NAME);
ASSERT(metadata != MAP_FAILED, "Metadata mmaping failed");
ASSERT(metadata->magic_number == IVSHMEM_MAGIC,
"Magic number is not that magic");
ASSERT(strncmp(metadata->name, METADATA_NAME, sizeof(metadata->name)) == 0,
"Name has not been set up");
ASSERT(metadata->entry[0].offset == 0, "Offest is not initialized");
ASSERT(metadata->entry[0].mz.addr == 0, "mz.addr is not initialized");
ASSERT(metadata->entry[0].mz.len == 0, "mz.len is not initialized");
return 0;
}
static int
test_ivshmem_create_multiple_metadata_configs(void)
{
int i;
char name[IVSHMEM_NAME_LEN];
struct rte_ivshmem_metadata *metadata;
for (i = 0; i < RTE_LIBRTE_IVSHMEM_MAX_METADATA_FILES / 2; i++) {
snprintf(name, sizeof(name), "test_%d", i);
rte_ivshmem_metadata_create(name);
metadata = mmap_metadata(name);
ASSERT(metadata->magic_number == IVSHMEM_MAGIC,
"Magic number is not that magic");
ASSERT(strncmp(metadata->name, name, sizeof(metadata->name)) == 0,
"Name has not been set up");
}
return 0;
}
static int
test_ivshmem_create_too_many_metadata_configs(void)
{
int i;
char name[IVSHMEM_NAME_LEN];
for (i = 0; i < RTE_LIBRTE_IVSHMEM_MAX_METADATA_FILES; i++) {
snprintf(name, sizeof(name), "test_%d", i);
ASSERT(rte_ivshmem_metadata_create(name) == 0,
"Create config file failed");
}
ASSERT(rte_ivshmem_metadata_create(name) < 0,
"Create config file didn't fail");
return 0;
}
enum rte_ivshmem_tests {
_test_ivshmem_api_test = 0,
_test_ivshmem_create_metadata_config,
_test_ivshmem_create_multiple_metadata_configs,
_test_ivshmem_create_too_many_metadata_configs,
_test_ivshmem_create_duplicate_metadata,
_test_ivshmem_create_lots_of_memzones,
_test_ivshmem_create_duplicate_memzone,
_last_test,
};
#define RTE_IVSHMEM_TEST_ID "RTE_IVSHMEM_TEST_ID"
static int
launch_all_tests_on_secondary_processes(void)
{
int ret = 0;
char id;
char testid;
char tmp[PATH_MAX] = {0};
char prefix[PATH_MAX] = {0};
get_current_prefix(tmp, sizeof(tmp));
snprintf(prefix, sizeof(prefix), "--file-prefix=%s", tmp);
const char *argv[] = { prgname, "-c", "1", "-n", "3",
"--proc-type=secondary", prefix };
for (id = 0; id < _last_test; id++) {
testid = (char)(FIRST_TEST + id);
setenv(RTE_IVSHMEM_TEST_ID, &testid, 1);
if (launch_proc(argv) != 0)
return -1;
}
return ret;
}
int
test_ivshmem(void)
{
int testid;
/* We want to have a clean execution for every test without exposing
* private global data structures in rte_ivshmem so we launch each test
* on a different secondary process. */
if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
/* first, create metadata */
ASSERT(create_duplicate() == 0, "Creating metadata failed");
return launch_all_tests_on_secondary_processes();
}
testid = *(getenv(RTE_IVSHMEM_TEST_ID)) - FIRST_TEST;
printf("Secondary process running test %d \n", testid);
switch (testid) {
case _test_ivshmem_api_test:
return test_ivshmem_api_test();
case _test_ivshmem_create_metadata_config:
return test_ivshmem_create_metadata_config();
case _test_ivshmem_create_multiple_metadata_configs:
return test_ivshmem_create_multiple_metadata_configs();
case _test_ivshmem_create_too_many_metadata_configs:
return test_ivshmem_create_too_many_metadata_configs();
case _test_ivshmem_create_duplicate_metadata:
return test_ivshmem_create_duplicate_metadata();
case _test_ivshmem_create_lots_of_memzones:
return test_ivshmem_create_lots_of_memzones();
case _test_ivshmem_create_duplicate_memzone:
return test_ivshmem_create_duplicate_memzone();
default:
break;
}
return -1;
}
static struct test_command ivshmem_cmd = {
.command = "ivshmem_autotest",
.callback = test_ivshmem,
};
REGISTER_TEST_COMMAND(ivshmem_cmd);