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numam-dpdk/app/test/test_memzone.c
David Marchand bc1a35fb3f memzone: enforce valid flags when reserving 
If we do not enforce valid flags are passed by an application, this
application might face issues in the future when we add more flags.

Signed-off-by: David Marchand <david.marchand@redhat.com>
Acked-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
Acked-by: Ray Kinsella <mdr@ashroe.eu>
2021-10-15 10:29:21 +02:00

1155 lines
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/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(c) 2010-2014 Intel Corporation
*/
#include <stdio.h>
#include <stdint.h>
#include <string.h>
#include <inttypes.h>
#include <sys/queue.h>
#include <rte_random.h>
#include <rte_cycles.h>
#include <rte_memory.h>
#include <rte_memzone.h>
#include <rte_eal.h>
#include <rte_lcore.h>
#include <rte_common.h>
#include <rte_string_fns.h>
#include <rte_errno.h>
#include <rte_malloc.h>
#include "malloc_elem.h"
#include "test.h"
/*
* Memzone
* =======
*
* - Search for three reserved zones or reserve them if they do not exist:
*
* - One is on any socket id.
* - The second is on socket 0.
* - The last one is on socket 1 (if socket 1 exists).
*
* - Check that the zones exist.
*
* - Check that the zones are cache-aligned.
*
* - Check that zones do not overlap.
*
* - Check that the zones are on the correct socket id.
*
* - Check that a lookup of the first zone returns the same pointer.
*
* - Check that it is not possible to create another zone with the
* same name as an existing zone.
*
* - Check flags for specific huge page size reservation
*/
#define TEST_MEMZONE_NAME(suffix) "MZ_TEST_" suffix
/* Test if memory overlaps: return 1 if true, or 0 if false. */
static int
is_memory_overlap(rte_iova_t ptr1, size_t len1, rte_iova_t ptr2, size_t len2)
{
if (ptr2 >= ptr1 && (ptr2 - ptr1) < len1)
return 1;
else if (ptr2 < ptr1 && (ptr1 - ptr2) < len2)
return 1;
return 0;
}
static int
test_memzone_invalid_alignment(void)
{
const struct rte_memzone * mz;
mz = rte_memzone_lookup(TEST_MEMZONE_NAME("invalid_alignment"));
if (mz != NULL) {
printf("Zone with invalid alignment has been reserved\n");
return -1;
}
mz = rte_memzone_reserve_aligned(TEST_MEMZONE_NAME("invalid_alignment"),
100, SOCKET_ID_ANY, 0, 100);
if (mz != NULL) {
printf("Zone with invalid alignment has been reserved\n");
return -1;
}
return 0;
}
static int
test_memzone_invalid_flags(void)
{
const struct rte_memzone *mz;
mz = rte_memzone_lookup(TEST_MEMZONE_NAME("invalid_flags"));
if (mz != NULL) {
printf("Zone with invalid flags has been reserved\n");
return -1;
}
mz = rte_memzone_reserve(TEST_MEMZONE_NAME("invalid_flags"),
100, SOCKET_ID_ANY, RTE_MEMZONE_IOVA_CONTIG << 1);
if (mz != NULL) {
printf("Zone with invalid flags has been reserved\n");
return -1;
}
return 0;
}
static int
test_memzone_reserving_zone_size_bigger_than_the_maximum(void)
{
const struct rte_memzone * mz;
mz = rte_memzone_lookup(
TEST_MEMZONE_NAME("zone_size_bigger_than_the_maximum"));
if (mz != NULL) {
printf("zone_size_bigger_than_the_maximum has been reserved\n");
return -1;
}
mz = rte_memzone_reserve(
TEST_MEMZONE_NAME("zone_size_bigger_than_the_maximum"),
(size_t)-1, SOCKET_ID_ANY, 0);
if (mz != NULL) {
printf("It is impossible to reserve such big a memzone\n");
return -1;
}
return 0;
}
struct walk_arg {
int hugepage_2MB_avail;
int hugepage_1GB_avail;
int hugepage_16MB_avail;
int hugepage_16GB_avail;
};
static int
find_available_pagesz(const struct rte_memseg_list *msl, void *arg)
{
struct walk_arg *wa = arg;
if (msl->external)
return 0;
if (msl->page_sz == RTE_PGSIZE_2M)
wa->hugepage_2MB_avail = 1;
if (msl->page_sz == RTE_PGSIZE_1G)
wa->hugepage_1GB_avail = 1;
if (msl->page_sz == RTE_PGSIZE_16M)
wa->hugepage_16MB_avail = 1;
if (msl->page_sz == RTE_PGSIZE_16G)
wa->hugepage_16GB_avail = 1;
return 0;
}
static int
test_memzone_reserve_flags(void)
{
const struct rte_memzone *mz;
struct walk_arg wa;
int hugepage_2MB_avail, hugepage_1GB_avail;
int hugepage_16MB_avail, hugepage_16GB_avail;
const size_t size = 100;
memset(&wa, 0, sizeof(wa));
rte_memseg_list_walk(find_available_pagesz, &wa);
hugepage_2MB_avail = wa.hugepage_2MB_avail;
hugepage_1GB_avail = wa.hugepage_1GB_avail;
hugepage_16MB_avail = wa.hugepage_16MB_avail;
hugepage_16GB_avail = wa.hugepage_16GB_avail;
/* Display the availability of 2MB ,1GB, 16MB, 16GB pages */
if (hugepage_2MB_avail)
printf("2MB Huge pages available\n");
if (hugepage_1GB_avail)
printf("1GB Huge pages available\n");
if (hugepage_16MB_avail)
printf("16MB Huge pages available\n");
if (hugepage_16GB_avail)
printf("16GB Huge pages available\n");
/*
* If 2MB pages available, check that a small memzone is correctly
* reserved from 2MB huge pages when requested by the RTE_MEMZONE_2MB flag.
* Also check that RTE_MEMZONE_SIZE_HINT_ONLY flag only defaults to an
* available page size (i.e 1GB ) when 2MB pages are unavailable.
*/
if (hugepage_2MB_avail) {
mz = rte_memzone_reserve(TEST_MEMZONE_NAME("flag_zone_2M"),
size, SOCKET_ID_ANY, RTE_MEMZONE_2MB);
if (mz == NULL) {
printf("MEMZONE FLAG 2MB\n");
return -1;
}
if (mz->hugepage_sz != RTE_PGSIZE_2M) {
printf("hugepage_sz not equal 2M\n");
return -1;
}
if (rte_memzone_free(mz)) {
printf("Fail memzone free\n");
return -1;
}
mz = rte_memzone_reserve(TEST_MEMZONE_NAME("flag_zone_2M_HINT"),
size, SOCKET_ID_ANY,
RTE_MEMZONE_2MB|RTE_MEMZONE_SIZE_HINT_ONLY);
if (mz == NULL) {
printf("MEMZONE FLAG 2MB\n");
return -1;
}
if (mz->hugepage_sz != RTE_PGSIZE_2M) {
printf("hugepage_sz not equal 2M\n");
return -1;
}
if (rte_memzone_free(mz)) {
printf("Fail memzone free\n");
return -1;
}
/* Check if 1GB huge pages are unavailable, that function fails unless
* HINT flag is indicated
*/
if (!hugepage_1GB_avail) {
mz = rte_memzone_reserve(
TEST_MEMZONE_NAME("flag_zone_1G_HINT"),
size, SOCKET_ID_ANY,
RTE_MEMZONE_1GB|RTE_MEMZONE_SIZE_HINT_ONLY);
if (mz == NULL) {
printf("MEMZONE FLAG 1GB & HINT\n");
return -1;
}
if (mz->hugepage_sz != RTE_PGSIZE_2M) {
printf("hugepage_sz not equal 2M\n");
return -1;
}
if (rte_memzone_free(mz)) {
printf("Fail memzone free\n");
return -1;
}
mz = rte_memzone_reserve(
TEST_MEMZONE_NAME("flag_zone_1G"), size,
SOCKET_ID_ANY, RTE_MEMZONE_1GB);
if (mz != NULL) {
printf("MEMZONE FLAG 1GB\n");
return -1;
}
}
}
/*As with 2MB tests above for 1GB huge page requests*/
if (hugepage_1GB_avail) {
mz = rte_memzone_reserve(TEST_MEMZONE_NAME("flag_zone_1G"),
size, SOCKET_ID_ANY, RTE_MEMZONE_1GB);
if (mz == NULL) {
printf("MEMZONE FLAG 1GB\n");
return -1;
}
if (mz->hugepage_sz != RTE_PGSIZE_1G) {
printf("hugepage_sz not equal 1G\n");
return -1;
}
if (rte_memzone_free(mz)) {
printf("Fail memzone free\n");
return -1;
}
mz = rte_memzone_reserve(TEST_MEMZONE_NAME("flag_zone_1G_HINT"),
size, SOCKET_ID_ANY,
RTE_MEMZONE_1GB|RTE_MEMZONE_SIZE_HINT_ONLY);
if (mz == NULL) {
printf("MEMZONE FLAG 1GB\n");
return -1;
}
if (mz->hugepage_sz != RTE_PGSIZE_1G) {
printf("hugepage_sz not equal 1G\n");
return -1;
}
if (rte_memzone_free(mz)) {
printf("Fail memzone free\n");
return -1;
}
/* Check if 1GB huge pages are unavailable, that function fails unless
* HINT flag is indicated
*/
if (!hugepage_2MB_avail) {
mz = rte_memzone_reserve(
TEST_MEMZONE_NAME("flag_zone_2M_HINT"),
size, SOCKET_ID_ANY,
RTE_MEMZONE_2MB|RTE_MEMZONE_SIZE_HINT_ONLY);
if (mz == NULL){
printf("MEMZONE FLAG 2MB & HINT\n");
return -1;
}
if (mz->hugepage_sz != RTE_PGSIZE_1G) {
printf("hugepage_sz not equal 1G\n");
return -1;
}
if (rte_memzone_free(mz)) {
printf("Fail memzone free\n");
return -1;
}
mz = rte_memzone_reserve(
TEST_MEMZONE_NAME("flag_zone_2M"), size,
SOCKET_ID_ANY, RTE_MEMZONE_2MB);
if (mz != NULL) {
printf("MEMZONE FLAG 2MB\n");
return -1;
}
}
if (hugepage_2MB_avail && hugepage_1GB_avail) {
mz = rte_memzone_reserve(
TEST_MEMZONE_NAME("flag_zone_2M_HINT"),
size, SOCKET_ID_ANY,
RTE_MEMZONE_2MB|RTE_MEMZONE_1GB);
if (mz == NULL) {
printf("BOTH SIZES SET\n");
return -1;
}
if (mz->hugepage_sz != RTE_PGSIZE_1G &&
mz->hugepage_sz != RTE_PGSIZE_2M) {
printf("Wrong size when both sizes set\n");
return -1;
}
if (rte_memzone_free(mz)) {
printf("Fail memzone free\n");
return -1;
}
}
}
/*
* This option is for IBM Power. If 16MB pages available, check
* that a small memzone is correctly reserved from 16MB huge pages
* when requested by the RTE_MEMZONE_16MB flag. Also check that
* RTE_MEMZONE_SIZE_HINT_ONLY flag only defaults to an available
* page size (i.e 16GB ) when 16MB pages are unavailable.
*/
if (hugepage_16MB_avail) {
mz = rte_memzone_reserve(TEST_MEMZONE_NAME("flag_zone_16M"),
size, SOCKET_ID_ANY, RTE_MEMZONE_16MB);
if (mz == NULL) {
printf("MEMZONE FLAG 16MB\n");
return -1;
}
if (mz->hugepage_sz != RTE_PGSIZE_16M) {
printf("hugepage_sz not equal 16M\n");
return -1;
}
if (rte_memzone_free(mz)) {
printf("Fail memzone free\n");
return -1;
}
mz = rte_memzone_reserve(
TEST_MEMZONE_NAME("flag_zone_16M_HINT"), size,
SOCKET_ID_ANY,
RTE_MEMZONE_16MB|RTE_MEMZONE_SIZE_HINT_ONLY);
if (mz == NULL) {
printf("MEMZONE FLAG 16MB\n");
return -1;
}
if (mz->hugepage_sz != RTE_PGSIZE_16M) {
printf("hugepage_sz not equal 16M\n");
return -1;
}
if (rte_memzone_free(mz)) {
printf("Fail memzone free\n");
return -1;
}
/* Check if 1GB huge pages are unavailable, that function fails
* unless HINT flag is indicated
*/
if (!hugepage_16GB_avail) {
mz = rte_memzone_reserve(
TEST_MEMZONE_NAME("flag_zone_16G_HINT"),
size, SOCKET_ID_ANY,
RTE_MEMZONE_16GB |
RTE_MEMZONE_SIZE_HINT_ONLY);
if (mz == NULL) {
printf("MEMZONE FLAG 16GB & HINT\n");
return -1;
}
if (mz->hugepage_sz != RTE_PGSIZE_16M) {
printf("hugepage_sz not equal 16M\n");
return -1;
}
if (rte_memzone_free(mz)) {
printf("Fail memzone free\n");
return -1;
}
mz = rte_memzone_reserve(
TEST_MEMZONE_NAME("flag_zone_16G"),
size,
SOCKET_ID_ANY, RTE_MEMZONE_16GB);
if (mz != NULL) {
printf("MEMZONE FLAG 16GB\n");
return -1;
}
}
}
/*As with 16MB tests above for 16GB huge page requests*/
if (hugepage_16GB_avail) {
mz = rte_memzone_reserve(TEST_MEMZONE_NAME("flag_zone_16G"),
size, SOCKET_ID_ANY, RTE_MEMZONE_16GB);
if (mz == NULL) {
printf("MEMZONE FLAG 16GB\n");
return -1;
}
if (mz->hugepage_sz != RTE_PGSIZE_16G) {
printf("hugepage_sz not equal 16G\n");
return -1;
}
if (rte_memzone_free(mz)) {
printf("Fail memzone free\n");
return -1;
}
mz = rte_memzone_reserve(
TEST_MEMZONE_NAME("flag_zone_16G_HINT"), size,
SOCKET_ID_ANY,
RTE_MEMZONE_16GB|RTE_MEMZONE_SIZE_HINT_ONLY);
if (mz == NULL) {
printf("MEMZONE FLAG 16GB\n");
return -1;
}
if (mz->hugepage_sz != RTE_PGSIZE_16G) {
printf("hugepage_sz not equal 16G\n");
return -1;
}
if (rte_memzone_free(mz)) {
printf("Fail memzone free\n");
return -1;
}
/* Check if 1GB huge pages are unavailable, that function fails
* unless HINT flag is indicated
*/
if (!hugepage_16MB_avail) {
mz = rte_memzone_reserve(
TEST_MEMZONE_NAME("flag_zone_16M_HINT"),
size, SOCKET_ID_ANY,
RTE_MEMZONE_16MB |
RTE_MEMZONE_SIZE_HINT_ONLY);
if (mz == NULL) {
printf("MEMZONE FLAG 16MB & HINT\n");
return -1;
}
if (mz->hugepage_sz != RTE_PGSIZE_16G) {
printf("hugepage_sz not equal 16G\n");
return -1;
}
if (rte_memzone_free(mz)) {
printf("Fail memzone free\n");
return -1;
}
mz = rte_memzone_reserve(
TEST_MEMZONE_NAME("flag_zone_16M"),
size, SOCKET_ID_ANY, RTE_MEMZONE_16MB);
if (mz != NULL) {
printf("MEMZONE FLAG 16MB\n");
return -1;
}
}
if (hugepage_16MB_avail && hugepage_16GB_avail) {
mz = rte_memzone_reserve(
TEST_MEMZONE_NAME("flag_zone_16M_HINT"),
size, SOCKET_ID_ANY,
RTE_MEMZONE_16MB|RTE_MEMZONE_16GB);
if (mz == NULL) {
printf("BOTH SIZES SET\n");
return -1;
}
if (mz->hugepage_sz != RTE_PGSIZE_16G &&
mz->hugepage_sz != RTE_PGSIZE_16M) {
printf("Wrong size when both sizes set\n");
return -1;
}
if (rte_memzone_free(mz)) {
printf("Fail memzone free\n");
return -1;
}
}
}
return 0;
}
/* Find the heap with the greatest free block size */
static size_t
find_max_block_free_size(unsigned int align, unsigned int socket_id)
{
struct rte_malloc_socket_stats stats;
size_t len, overhead;
if (rte_malloc_get_socket_stats(socket_id, &stats) < 0)
return 0;
len = stats.greatest_free_size;
overhead = MALLOC_ELEM_OVERHEAD;
if (len == 0)
return 0;
align = RTE_CACHE_LINE_ROUNDUP(align);
overhead += align;
if (len < overhead)
return 0;
return len - overhead;
}
static int
test_memzone_reserve_max(void)
{
unsigned int i;
for (i = 0; i < rte_socket_count(); i++) {
const struct rte_memzone *mz;
size_t maxlen;
int socket;
socket = rte_socket_id_by_idx(i);
maxlen = find_max_block_free_size(0, socket);
if (maxlen == 0) {
printf("There is no space left!\n");
return 0;
}
mz = rte_memzone_reserve(TEST_MEMZONE_NAME("max_zone"), 0,
socket, 0);
if (mz == NULL) {
printf("Failed to reserve a big chunk of memory - %s\n",
rte_strerror(rte_errno));
rte_dump_physmem_layout(stdout);
rte_memzone_dump(stdout);
return -1;
}
if (mz->len != maxlen) {
printf("Memzone reserve with 0 size did not return bigest block\n");
printf("Expected size = %zu, actual size = %zu\n",
maxlen, mz->len);
rte_dump_physmem_layout(stdout);
rte_memzone_dump(stdout);
return -1;
}
if (rte_memzone_free(mz)) {
printf("Fail memzone free\n");
return -1;
}
}
return 0;
}
static int
test_memzone_reserve_max_aligned(void)
{
unsigned int i;
for (i = 0; i < rte_socket_count(); i++) {
const struct rte_memzone *mz;
size_t maxlen, minlen = 0;
int socket;
socket = rte_socket_id_by_idx(i);
/* random alignment */
rte_srand((unsigned int)rte_rdtsc());
const unsigned int align = 1 << ((rte_rand() % 8) + 5); /* from 128 up to 4k alignment */
/* memzone size may be between size and size - align */
minlen = find_max_block_free_size(align, socket);
maxlen = find_max_block_free_size(0, socket);
if (minlen == 0 || maxlen == 0) {
printf("There is no space left for biggest %u-aligned memzone!\n",
align);
return 0;
}
mz = rte_memzone_reserve_aligned(
TEST_MEMZONE_NAME("max_zone_aligned"),
0, socket, 0, align);
if (mz == NULL) {
printf("Failed to reserve a big chunk of memory - %s\n",
rte_strerror(rte_errno));
rte_dump_physmem_layout(stdout);
rte_memzone_dump(stdout);
return -1;
}
if (mz->addr != RTE_PTR_ALIGN(mz->addr, align)) {
printf("Memzone reserve with 0 size and alignment %u did not return aligned block\n",
align);
rte_dump_physmem_layout(stdout);
rte_memzone_dump(stdout);
return -1;
}
if (mz->len < minlen || mz->len > maxlen) {
printf("Memzone reserve with 0 size and alignment %u did not return"
" bigest block\n", align);
printf("Expected size = %zu-%zu, actual size = %zu\n",
minlen, maxlen, mz->len);
rte_dump_physmem_layout(stdout);
rte_memzone_dump(stdout);
return -1;
}
if (rte_memzone_free(mz)) {
printf("Fail memzone free\n");
return -1;
}
}
return 0;
}
static int
test_memzone_aligned(void)
{
const struct rte_memzone *memzone_aligned_32;
const struct rte_memzone *memzone_aligned_128;
const struct rte_memzone *memzone_aligned_256;
const struct rte_memzone *memzone_aligned_512;
const struct rte_memzone *memzone_aligned_1024;
/* memzone that should automatically be adjusted to align on 64 bytes */
memzone_aligned_32 = rte_memzone_reserve_aligned(
TEST_MEMZONE_NAME("aligned_32"), 100, SOCKET_ID_ANY, 0,
32);
/* memzone that is supposed to be aligned on a 128 byte boundary */
memzone_aligned_128 = rte_memzone_reserve_aligned(
TEST_MEMZONE_NAME("aligned_128"), 100, SOCKET_ID_ANY, 0,
128);
/* memzone that is supposed to be aligned on a 256 byte boundary */
memzone_aligned_256 = rte_memzone_reserve_aligned(
TEST_MEMZONE_NAME("aligned_256"), 100, SOCKET_ID_ANY, 0,
256);
/* memzone that is supposed to be aligned on a 512 byte boundary */
memzone_aligned_512 = rte_memzone_reserve_aligned(
TEST_MEMZONE_NAME("aligned_512"), 100, SOCKET_ID_ANY, 0,
512);
/* memzone that is supposed to be aligned on a 1024 byte boundary */
memzone_aligned_1024 = rte_memzone_reserve_aligned(
TEST_MEMZONE_NAME("aligned_1024"), 100, SOCKET_ID_ANY,
0, 1024);
printf("check alignments and lengths\n");
if (memzone_aligned_32 == NULL) {
printf("Unable to reserve 64-byte aligned memzone!\n");
return -1;
}
if ((memzone_aligned_32->iova & RTE_CACHE_LINE_MASK) != 0)
return -1;
if (((uintptr_t) memzone_aligned_32->addr & RTE_CACHE_LINE_MASK) != 0)
return -1;
if ((memzone_aligned_32->len & RTE_CACHE_LINE_MASK) != 0)
return -1;
if (memzone_aligned_128 == NULL) {
printf("Unable to reserve 128-byte aligned memzone!\n");
return -1;
}
if ((memzone_aligned_128->iova & 127) != 0)
return -1;
if (((uintptr_t) memzone_aligned_128->addr & 127) != 0)
return -1;
if ((memzone_aligned_128->len & RTE_CACHE_LINE_MASK) != 0)
return -1;
if (memzone_aligned_256 == NULL) {
printf("Unable to reserve 256-byte aligned memzone!\n");
return -1;
}
if ((memzone_aligned_256->iova & 255) != 0)
return -1;
if (((uintptr_t) memzone_aligned_256->addr & 255) != 0)
return -1;
if ((memzone_aligned_256->len & RTE_CACHE_LINE_MASK) != 0)
return -1;
if (memzone_aligned_512 == NULL) {
printf("Unable to reserve 512-byte aligned memzone!\n");
return -1;
}
if ((memzone_aligned_512->iova & 511) != 0)
return -1;
if (((uintptr_t) memzone_aligned_512->addr & 511) != 0)
return -1;
if ((memzone_aligned_512->len & RTE_CACHE_LINE_MASK) != 0)
return -1;
if (memzone_aligned_1024 == NULL) {
printf("Unable to reserve 1024-byte aligned memzone!\n");
return -1;
}
if ((memzone_aligned_1024->iova & 1023) != 0)
return -1;
if (((uintptr_t) memzone_aligned_1024->addr & 1023) != 0)
return -1;
if ((memzone_aligned_1024->len & RTE_CACHE_LINE_MASK) != 0)
return -1;
/* check that zones don't overlap */
printf("check overlapping\n");
if (is_memory_overlap(memzone_aligned_32->iova, memzone_aligned_32->len,
memzone_aligned_128->iova, memzone_aligned_128->len))
return -1;
if (is_memory_overlap(memzone_aligned_32->iova, memzone_aligned_32->len,
memzone_aligned_256->iova, memzone_aligned_256->len))
return -1;
if (is_memory_overlap(memzone_aligned_32->iova, memzone_aligned_32->len,
memzone_aligned_512->iova, memzone_aligned_512->len))
return -1;
if (is_memory_overlap(memzone_aligned_32->iova, memzone_aligned_32->len,
memzone_aligned_1024->iova, memzone_aligned_1024->len))
return -1;
if (is_memory_overlap(memzone_aligned_128->iova, memzone_aligned_128->len,
memzone_aligned_256->iova, memzone_aligned_256->len))
return -1;
if (is_memory_overlap(memzone_aligned_128->iova, memzone_aligned_128->len,
memzone_aligned_512->iova, memzone_aligned_512->len))
return -1;
if (is_memory_overlap(memzone_aligned_128->iova, memzone_aligned_128->len,
memzone_aligned_1024->iova, memzone_aligned_1024->len))
return -1;
if (is_memory_overlap(memzone_aligned_256->iova, memzone_aligned_256->len,
memzone_aligned_512->iova, memzone_aligned_512->len))
return -1;
if (is_memory_overlap(memzone_aligned_256->iova, memzone_aligned_256->len,
memzone_aligned_1024->iova, memzone_aligned_1024->len))
return -1;
if (is_memory_overlap(memzone_aligned_512->iova, memzone_aligned_512->len,
memzone_aligned_1024->iova, memzone_aligned_1024->len))
return -1;
/* free all used zones */
if (rte_memzone_free(memzone_aligned_32)) {
printf("Fail memzone free\n");
return -1;
}
if (rte_memzone_free(memzone_aligned_128)) {
printf("Fail memzone free\n");
return -1;
}
if (rte_memzone_free(memzone_aligned_256)) {
printf("Fail memzone free\n");
return -1;
}
if (rte_memzone_free(memzone_aligned_512)) {
printf("Fail memzone free\n");
return -1;
}
if (rte_memzone_free(memzone_aligned_1024)) {
printf("Fail memzone free\n");
return -1;
}
return 0;
}
static int
check_memzone_bounded(const char *name, uint32_t len, uint32_t align,
uint32_t bound)
{
const struct rte_memzone *mz;
rte_iova_t bmask;
bmask = ~((rte_iova_t)bound - 1);
if ((mz = rte_memzone_reserve_bounded(name, len, SOCKET_ID_ANY, 0,
align, bound)) == NULL) {
printf("%s(%s): memzone creation failed\n",
__func__, name);
return -1;
}
if ((mz->iova & ((rte_iova_t)align - 1)) != 0) {
printf("%s(%s): invalid phys addr alignment\n",
__func__, mz->name);
return -1;
}
if (((uintptr_t) mz->addr & ((uintptr_t)align - 1)) != 0) {
printf("%s(%s): invalid virtual addr alignment\n",
__func__, mz->name);
return -1;
}
if ((mz->len & RTE_CACHE_LINE_MASK) != 0 || mz->len < len ||
mz->len < RTE_CACHE_LINE_SIZE) {
printf("%s(%s): invalid length\n",
__func__, mz->name);
return -1;
}
if ((mz->iova & bmask) !=
((mz->iova + mz->len - 1) & bmask)) {
printf("%s(%s): invalid memzone boundary %u crossed\n",
__func__, mz->name, bound);
return -1;
}
if (rte_memzone_free(mz)) {
printf("Fail memzone free\n");
return -1;
}
return 0;
}
static int
test_memzone_bounded(void)
{
const struct rte_memzone *memzone_err;
int rc;
/* should fail as boundary is not power of two */
memzone_err = rte_memzone_reserve_bounded(
TEST_MEMZONE_NAME("bounded_error_31"), 100,
SOCKET_ID_ANY, 0, 32, UINT32_MAX);
if (memzone_err != NULL) {
printf("%s(%s)created a memzone with invalid boundary "
"conditions\n", __func__, memzone_err->name);
return -1;
}
/* should fail as len is greater then boundary */
memzone_err = rte_memzone_reserve_bounded(
TEST_MEMZONE_NAME("bounded_error_32"), 100,
SOCKET_ID_ANY, 0, 32, 32);
if (memzone_err != NULL) {
printf("%s(%s)created a memzone with invalid boundary "
"conditions\n", __func__, memzone_err->name);
return -1;
}
rc = check_memzone_bounded(TEST_MEMZONE_NAME("bounded_128"), 100, 128,
128);
if (rc != 0)
return rc;
rc = check_memzone_bounded(TEST_MEMZONE_NAME("bounded_256"), 100, 256,
128);
if (rc != 0)
return rc;
rc = check_memzone_bounded(TEST_MEMZONE_NAME("bounded_1K"), 100, 64,
1024);
if (rc != 0)
return rc;
rc = check_memzone_bounded(TEST_MEMZONE_NAME("bounded_1K_MAX"), 0, 64,
1024);
if (rc != 0)
return rc;
return 0;
}
static int
test_memzone_free(void)
{
const struct rte_memzone *mz[RTE_MAX_MEMZONE + 1];
int i;
char name[20];
mz[0] = rte_memzone_reserve(TEST_MEMZONE_NAME("tempzone0"), 2000,
SOCKET_ID_ANY, 0);
mz[1] = rte_memzone_reserve(TEST_MEMZONE_NAME("tempzone1"), 4000,
SOCKET_ID_ANY, 0);
if (mz[0] > mz[1])
return -1;
if (!rte_memzone_lookup(TEST_MEMZONE_NAME("tempzone0")))
return -1;
if (!rte_memzone_lookup(TEST_MEMZONE_NAME("tempzone1")))
return -1;
if (rte_memzone_free(mz[0])) {
printf("Fail memzone free - tempzone0\n");
return -1;
}
if (rte_memzone_lookup(TEST_MEMZONE_NAME("tempzone0"))) {
printf("Found previously free memzone - tempzone0\n");
return -1;
}
mz[2] = rte_memzone_reserve(TEST_MEMZONE_NAME("tempzone2"), 2000,
SOCKET_ID_ANY, 0);
if (mz[2] > mz[1]) {
printf("tempzone2 should have gotten the free entry from tempzone0\n");
return -1;
}
if (rte_memzone_free(mz[2])) {
printf("Fail memzone free - tempzone2\n");
return -1;
}
if (rte_memzone_lookup(TEST_MEMZONE_NAME("tempzone2"))) {
printf("Found previously free memzone - tempzone2\n");
return -1;
}
if (rte_memzone_free(mz[1])) {
printf("Fail memzone free - tempzone1\n");
return -1;
}
if (rte_memzone_lookup(TEST_MEMZONE_NAME("tempzone1"))) {
printf("Found previously free memzone - tempzone1\n");
return -1;
}
i = 0;
do {
snprintf(name, sizeof(name), TEST_MEMZONE_NAME("tempzone%u"),
i);
mz[i] = rte_memzone_reserve(name, 1, SOCKET_ID_ANY, 0);
} while (mz[i++] != NULL);
if (rte_memzone_free(mz[0])) {
printf("Fail memzone free - tempzone0\n");
return -1;
}
mz[0] = rte_memzone_reserve(TEST_MEMZONE_NAME("tempzone0new"), 0,
SOCKET_ID_ANY, 0);
if (mz[0] == NULL) {
printf("Fail to create memzone - tempzone0new - when MAX memzones were "
"created and one was free\n");
return -1;
}
for (i = i - 2; i >= 0; i--) {
if (rte_memzone_free(mz[i])) {
printf("Fail memzone free - tempzone%d\n", i);
return -1;
}
}
return 0;
}
static int test_memzones_left;
static int memzone_walk_cnt;
static void memzone_walk_clb(const struct rte_memzone *mz,
void *arg __rte_unused)
{
memzone_walk_cnt++;
if (!strncmp(TEST_MEMZONE_NAME(""), mz->name, RTE_MEMZONE_NAMESIZE))
test_memzones_left++;
}
static int
test_memzone_basic(void)
{
const struct rte_memzone *memzone1;
const struct rte_memzone *memzone2;
const struct rte_memzone *memzone3;
const struct rte_memzone *memzone4;
const struct rte_memzone *mz;
int memzone_cnt_after, memzone_cnt_expected;
int memzone_cnt_before;
memzone_walk_cnt = 0;
test_memzones_left = 0;
rte_memzone_walk(memzone_walk_clb, NULL);
memzone_cnt_before = memzone_walk_cnt;
memzone1 = rte_memzone_reserve(TEST_MEMZONE_NAME("testzone1"), 100,
SOCKET_ID_ANY, 0);
memzone2 = rte_memzone_reserve(TEST_MEMZONE_NAME("testzone2"), 1000,
0, 0);
memzone3 = rte_memzone_reserve(TEST_MEMZONE_NAME("testzone3"), 1000,
1, 0);
memzone4 = rte_memzone_reserve(TEST_MEMZONE_NAME("testzone4"), 1024,
SOCKET_ID_ANY, 0);
/* memzone3 may be NULL if we don't have NUMA */
if (memzone1 == NULL || memzone2 == NULL || memzone4 == NULL)
return -1;
/* check how many memzones we are expecting */
memzone_cnt_expected = memzone_cnt_before +
(memzone1 != NULL) + (memzone2 != NULL) +
(memzone3 != NULL) + (memzone4 != NULL);
memzone_walk_cnt = 0;
test_memzones_left = 0;
rte_memzone_walk(memzone_walk_clb, NULL);
memzone_cnt_after = memzone_walk_cnt;
if (memzone_cnt_after != memzone_cnt_expected)
return -1;
rte_memzone_dump(stdout);
/* check cache-line alignments */
printf("check alignments and lengths\n");
if ((memzone1->iova & RTE_CACHE_LINE_MASK) != 0)
return -1;
if ((memzone2->iova & RTE_CACHE_LINE_MASK) != 0)
return -1;
if (memzone3 != NULL && (memzone3->iova & RTE_CACHE_LINE_MASK) != 0)
return -1;
if ((memzone1->len & RTE_CACHE_LINE_MASK) != 0 || memzone1->len == 0)
return -1;
if ((memzone2->len & RTE_CACHE_LINE_MASK) != 0 || memzone2->len == 0)
return -1;
if (memzone3 != NULL && ((memzone3->len & RTE_CACHE_LINE_MASK) != 0 ||
memzone3->len == 0))
return -1;
if (memzone4->len != 1024)
return -1;
/* check that zones don't overlap */
printf("check overlapping\n");
if (is_memory_overlap(memzone1->iova, memzone1->len,
memzone2->iova, memzone2->len))
return -1;
if (memzone3 != NULL &&
is_memory_overlap(memzone1->iova, memzone1->len,
memzone3->iova, memzone3->len))
return -1;
if (memzone3 != NULL &&
is_memory_overlap(memzone2->iova, memzone2->len,
memzone3->iova, memzone3->len))
return -1;
printf("check socket ID\n");
/* memzone2 must be on socket id 0 and memzone3 on socket 1 */
if (memzone2->socket_id != 0)
return -1;
if (memzone3 != NULL && memzone3->socket_id != 1)
return -1;
printf("test zone lookup\n");
mz = rte_memzone_lookup(TEST_MEMZONE_NAME("testzone1"));
if (mz != memzone1)
return -1;
printf("test duplcate zone name\n");
mz = rte_memzone_reserve(TEST_MEMZONE_NAME("testzone1"), 100,
SOCKET_ID_ANY, 0);
if (mz != NULL)
return -1;
if (rte_memzone_free(memzone1)) {
printf("Fail memzone free - memzone1\n");
return -1;
}
if (rte_memzone_free(memzone2)) {
printf("Fail memzone free - memzone2\n");
return -1;
}
if (memzone3 && rte_memzone_free(memzone3)) {
printf("Fail memzone free - memzone3\n");
return -1;
}
if (rte_memzone_free(memzone4)) {
printf("Fail memzone free - memzone4\n");
return -1;
}
memzone_walk_cnt = 0;
test_memzones_left = 0;
rte_memzone_walk(memzone_walk_clb, NULL);
memzone_cnt_after = memzone_walk_cnt;
if (memzone_cnt_after != memzone_cnt_before)
return -1;
return 0;
}
static int
test_memzone(void)
{
/* take note of how many memzones were allocated before running */
int memzone_cnt;
memzone_walk_cnt = 0;
test_memzones_left = 0;
rte_memzone_walk(memzone_walk_clb, NULL);
memzone_cnt = memzone_walk_cnt;
printf("test basic memzone API\n");
if (test_memzone_basic() < 0)
return -1;
printf("test free memzone\n");
if (test_memzone_free() < 0)
return -1;
printf("test reserving memzone with bigger size than the maximum\n");
if (test_memzone_reserving_zone_size_bigger_than_the_maximum() < 0)
return -1;
printf("test memzone_reserve flags\n");
if (test_memzone_reserve_flags() < 0)
return -1;
printf("test alignment for memzone_reserve\n");
if (test_memzone_aligned() < 0)
return -1;
printf("test boundary alignment for memzone_reserve\n");
if (test_memzone_bounded() < 0)
return -1;
printf("test invalid alignment for memzone_reserve\n");
if (test_memzone_invalid_alignment() < 0)
return -1;
printf("test invalid flags for memzone_reserve\n");
if (test_memzone_invalid_flags() < 0)
return -1;
printf("test reserving the largest size memzone possible\n");
if (test_memzone_reserve_max() < 0)
return -1;
printf("test reserving the largest size aligned memzone possible\n");
if (test_memzone_reserve_max_aligned() < 0)
return -1;
printf("check memzone cleanup\n");
memzone_walk_cnt = 0;
test_memzones_left = 0;
rte_memzone_walk(memzone_walk_clb, NULL);
if (memzone_walk_cnt != memzone_cnt || test_memzones_left > 0) {
printf("there are some memzones left after test\n");
rte_memzone_dump(stdout);
return -1;
}
return 0;
}
REGISTER_TEST_COMMAND(memzone_autotest, test_memzone);
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