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/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(c) 2017 Cavium, Inc
*/
#include <stdio.h>
#include <inttypes.h>
#include <rte_common.h>
#include <rte_bitmap.h>
#include <rte_malloc.h>
#include "test.h"
#define MAX_BITS 1000
static int
test_bitmap_scan_operations(struct rte_bitmap *bmp)
{
uint32_t pos = 0;
uint64_t slab1_magic = 0xBADC0FFEEBADF00D;
uint64_t slab2_magic = 0xFEEDDEADDEADF00D;
uint64_t out_slab = 0;
rte_bitmap_reset(bmp);
rte_bitmap_set_slab(bmp, pos, slab1_magic);
rte_bitmap_set_slab(bmp, pos + RTE_BITMAP_SLAB_BIT_SIZE, slab2_magic);
if (!rte_bitmap_scan(bmp, &pos, &out_slab)) {
printf("Failed to get slab from bitmap.\n");
return TEST_FAILED;
}
if (slab1_magic != out_slab) {
printf("Scan operation sanity failed.\n");
return TEST_FAILED;
}
if (!rte_bitmap_scan(bmp, &pos, &out_slab)) {
printf("Failed to get slab from bitmap.\n");
return TEST_FAILED;
}
if (slab2_magic != out_slab) {
printf("Scan operation sanity failed.\n");
return TEST_FAILED;
}
/* Wrap around */
if (!rte_bitmap_scan(bmp, &pos, &out_slab)) {
printf("Failed to get slab from bitmap.\n");
return TEST_FAILED;
}
if (slab1_magic != out_slab) {
printf("Scan operation wrap around failed.\n");
return TEST_FAILED;
}
/* Scan reset check. */
__rte_bitmap_scan_init(bmp);
if (!rte_bitmap_scan(bmp, &pos, &out_slab)) {
printf("Failed to get slab from bitmap.\n");
return TEST_FAILED;
}
if (slab1_magic != out_slab) {
printf("Scan reset operation failed.\n");
return TEST_FAILED;
}
return TEST_SUCCESS;
}
static int
test_bitmap_slab_set_get(struct rte_bitmap *bmp)
{
uint32_t pos = 0;
uint64_t slab_magic = 0xBADC0FFEEBADF00D;
uint64_t out_slab = 0;
rte_bitmap_reset(bmp);
rte_bitmap_set_slab(bmp, pos, slab_magic);
if (!rte_bitmap_scan(bmp, &pos, &out_slab)) {
printf("Failed to get slab from bitmap.\n");
return TEST_FAILED;
}
if (slab_magic != out_slab) {
printf("Invalid slab in bitmap.\n");
return TEST_FAILED;
}
return TEST_SUCCESS;
}
static int
test_bitmap_set_get_clear(struct rte_bitmap *bmp)
{
uint64_t val;
int i;
rte_bitmap_reset(bmp);
for (i = 0; i < MAX_BITS; i++)
rte_bitmap_set(bmp, i);
for (i = 0; i < MAX_BITS; i++) {
if (!rte_bitmap_get(bmp, i)) {
printf("Failed to get set bit.\n");
return TEST_FAILED;
}
}
for (i = 0; i < MAX_BITS; i++)
rte_bitmap_clear(bmp, i);
for (i = 0; i < MAX_BITS; i++) {
if (rte_bitmap_get(bmp, i)) {
printf("Failed to clear set bit.\n");
return TEST_FAILED;
}
}
rte_bitmap_reset(bmp);
/* Alternate slab set test */
for (i = 0; i < MAX_BITS; i++) {
if (i % RTE_BITMAP_SLAB_BIT_SIZE)
rte_bitmap_set(bmp, i);
}
for (i = 0; i < MAX_BITS; i++) {
val = rte_bitmap_get(bmp, i);
if (((i % RTE_BITMAP_SLAB_BIT_SIZE) && !val) ||
(!(i % RTE_BITMAP_SLAB_BIT_SIZE) && val)) {
printf("Failed to get set bit.\n");
return TEST_FAILED;
}
}
return TEST_SUCCESS;
}
static int
test_bitmap_all_clear(void)
{
void *mem;
uint32_t bmp_size;
struct rte_bitmap *bmp;
bmp_size =
rte_bitmap_get_memory_footprint(MAX_BITS);
mem = rte_zmalloc("test_bmap", bmp_size, RTE_CACHE_LINE_SIZE);
if (mem == NULL) {
printf("Failed to allocate memory for bitmap\n");
return TEST_FAILED;
}
bmp = rte_bitmap_init(MAX_BITS, mem, bmp_size);
if (bmp == NULL) {
printf("Failed to init bitmap\n");
return TEST_FAILED;
}
if (test_bitmap_set_get_clear(bmp) < 0)
return TEST_FAILED;
if (test_bitmap_slab_set_get(bmp) < 0)
return TEST_FAILED;
if (test_bitmap_scan_operations(bmp) < 0)
return TEST_FAILED;
rte_bitmap_free(bmp);
rte_free(mem);
return TEST_SUCCESS;
}
static int
test_bitmap_all_set(void)
{
void *mem;
uint32_t i;
uint64_t slab;
uint32_t pos;
uint32_t bmp_size;
struct rte_bitmap *bmp;
bmp_size =
rte_bitmap_get_memory_footprint(MAX_BITS);
mem = rte_zmalloc("test_bmap", bmp_size, RTE_CACHE_LINE_SIZE);
if (mem == NULL) {
printf("Failed to allocate memory for bitmap\n");
return TEST_FAILED;
}
bmp = rte_bitmap_init_with_all_set(MAX_BITS, mem, bmp_size);
if (bmp == NULL) {
printf("Failed to init bitmap\n");
return TEST_FAILED;
}
for (i = 0; i < MAX_BITS; i++) {
pos = slab = 0;
if (!rte_bitmap_scan(bmp, &pos, &slab)) {
printf("Failed with init bitmap.\n");
return TEST_FAILED;
}
pos += (slab ? __builtin_ctzll(slab) : 0);
rte_bitmap_clear(bmp, pos);
}
if (rte_bitmap_scan(bmp, &pos, &slab)) {
printf("Too much bits set.\n");
return TEST_FAILED;
}
rte_bitmap_free(bmp);
rte_free(mem);
return TEST_SUCCESS;
}
static int
test_bitmap(void)
{
if (test_bitmap_all_clear() != TEST_SUCCESS)
return TEST_FAILED;
return test_bitmap_all_set();
}
REGISTER_TEST_COMMAND(bitmap_test, test_bitmap);
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