1 /* SPDX-License-Identifier: BSD-3-Clause 2 * Copyright(c) 2017 Cavium, Inc 3 */ 4 5 #include <stdio.h> 6 #include <inttypes.h> 7 8 #include <rte_common.h> 9 #include <rte_bitmap.h> 10 #include <rte_malloc.h> 11 12 #include "test.h" 13 14 #define MAX_BITS 1000 15 16 static int 17 test_bitmap_scan_operations(struct rte_bitmap *bmp) 18 { 19 uint32_t pos = 0; 20 uint64_t slab1_magic = 0xBADC0FFEEBADF00D; 21 uint64_t slab2_magic = 0xFEEDDEADDEADF00D; 22 uint64_t out_slab = 0; 23 24 rte_bitmap_reset(bmp); 25 26 rte_bitmap_set_slab(bmp, pos, slab1_magic); 27 rte_bitmap_set_slab(bmp, pos + RTE_BITMAP_SLAB_BIT_SIZE, slab2_magic); 28 29 if (!rte_bitmap_scan(bmp, &pos, &out_slab)) { 30 printf("Failed to get slab from bitmap.\n"); 31 return TEST_FAILED; 32 } 33 34 if (slab1_magic != out_slab) { 35 printf("Scan operation sanity failed.\n"); 36 return TEST_FAILED; 37 } 38 39 if (!rte_bitmap_scan(bmp, &pos, &out_slab)) { 40 printf("Failed to get slab from bitmap.\n"); 41 return TEST_FAILED; 42 } 43 44 if (slab2_magic != out_slab) { 45 printf("Scan operation sanity failed.\n"); 46 return TEST_FAILED; 47 } 48 49 /* Wrap around */ 50 if (!rte_bitmap_scan(bmp, &pos, &out_slab)) { 51 printf("Failed to get slab from bitmap.\n"); 52 return TEST_FAILED; 53 } 54 55 if (slab1_magic != out_slab) { 56 printf("Scan operation wrap around failed.\n"); 57 return TEST_FAILED; 58 } 59 60 /* Scan reset check. */ 61 __rte_bitmap_scan_init(bmp); 62 63 if (!rte_bitmap_scan(bmp, &pos, &out_slab)) { 64 printf("Failed to get slab from bitmap.\n"); 65 return TEST_FAILED; 66 } 67 68 if (slab1_magic != out_slab) { 69 printf("Scan reset operation failed.\n"); 70 return TEST_FAILED; 71 } 72 73 return TEST_SUCCESS; 74 } 75 76 static int 77 test_bitmap_slab_set_get(struct rte_bitmap *bmp) 78 { 79 uint32_t pos = 0; 80 uint64_t slab_magic = 0xBADC0FFEEBADF00D; 81 uint64_t out_slab = 0; 82 83 rte_bitmap_reset(bmp); 84 rte_bitmap_set_slab(bmp, pos, slab_magic); 85 86 if (!rte_bitmap_scan(bmp, &pos, &out_slab)) { 87 printf("Failed to get slab from bitmap.\n"); 88 return TEST_FAILED; 89 } 90 91 92 if (slab_magic != out_slab) { 93 printf("Invalid slab in bitmap.\n"); 94 return TEST_FAILED; 95 } 96 97 98 return TEST_SUCCESS; 99 } 100 101 static int 102 test_bitmap_set_get_clear(struct rte_bitmap *bmp) 103 { 104 uint64_t val; 105 int i; 106 107 rte_bitmap_reset(bmp); 108 for (i = 0; i < MAX_BITS; i++) 109 rte_bitmap_set(bmp, i); 110 111 for (i = 0; i < MAX_BITS; i++) { 112 if (!rte_bitmap_get(bmp, i)) { 113 printf("Failed to get set bit.\n"); 114 return TEST_FAILED; 115 } 116 } 117 118 for (i = 0; i < MAX_BITS; i++) 119 rte_bitmap_clear(bmp, i); 120 121 for (i = 0; i < MAX_BITS; i++) { 122 if (rte_bitmap_get(bmp, i)) { 123 printf("Failed to clear set bit.\n"); 124 return TEST_FAILED; 125 } 126 } 127 128 rte_bitmap_reset(bmp); 129 130 /* Alternate slab set test */ 131 for (i = 0; i < MAX_BITS; i++) { 132 if (i % RTE_BITMAP_SLAB_BIT_SIZE) 133 rte_bitmap_set(bmp, i); 134 } 135 136 for (i = 0; i < MAX_BITS; i++) { 137 val = rte_bitmap_get(bmp, i); 138 if (((i % RTE_BITMAP_SLAB_BIT_SIZE) && !val) || 139 (!(i % RTE_BITMAP_SLAB_BIT_SIZE) && val)) { 140 printf("Failed to get set bit.\n"); 141 return TEST_FAILED; 142 } 143 } 144 145 return TEST_SUCCESS; 146 } 147 148 static int 149 test_bitmap(void) 150 { 151 void *mem; 152 uint32_t bmp_size; 153 struct rte_bitmap *bmp; 154 155 bmp_size = 156 rte_bitmap_get_memory_footprint(MAX_BITS); 157 158 mem = rte_zmalloc("test_bmap", bmp_size, RTE_CACHE_LINE_SIZE); 159 if (mem == NULL) { 160 printf("Failed to allocate memory for bitmap\n"); 161 return TEST_FAILED; 162 } 163 164 bmp = rte_bitmap_init(MAX_BITS, mem, bmp_size); 165 if (bmp == NULL) { 166 printf("Failed to init bitmap\n"); 167 return TEST_FAILED; 168 } 169 170 if (test_bitmap_set_get_clear(bmp) < 0) 171 return TEST_FAILED; 172 173 if (test_bitmap_slab_set_get(bmp) < 0) 174 return TEST_FAILED; 175 176 if (test_bitmap_scan_operations(bmp) < 0) 177 return TEST_FAILED; 178 179 rte_bitmap_free(bmp); 180 rte_free(mem); 181 182 return TEST_SUCCESS; 183 } 184 185 REGISTER_TEST_COMMAND(bitmap_test, test_bitmap); 186