net/virtio: fix incorrect cast of void *
[dpdk.git] / test / test / test_common.c
1 /*-
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33
34 #include <stdio.h>
35 #include <string.h>
36 #include <math.h>
37 #include <rte_common.h>
38 #include <rte_hexdump.h>
39 #include <rte_pause.h>
40
41 #include "test.h"
42
43 #define MAX_NUM 1 << 20
44
45 #define FAIL(x)\
46         {printf(x "() test failed!\n");\
47         return -1;}
48
49 /* this is really a sanity check */
50 static int
51 test_macros(int __rte_unused unused_parm)
52 {
53 #define SMALLER 0x1000U
54 #define BIGGER 0x2000U
55 #define PTR_DIFF BIGGER - SMALLER
56 #define FAIL_MACRO(x)\
57         {printf(#x "() test failed!\n");\
58         return -1;}
59
60         uintptr_t unused = 0;
61
62         RTE_SET_USED(unused);
63
64         if ((uintptr_t)RTE_PTR_ADD(SMALLER, PTR_DIFF) != BIGGER)
65                 FAIL_MACRO(RTE_PTR_ADD);
66         if ((uintptr_t)RTE_PTR_SUB(BIGGER, PTR_DIFF) != SMALLER)
67                 FAIL_MACRO(RTE_PTR_SUB);
68         if (RTE_PTR_DIFF(BIGGER, SMALLER) != PTR_DIFF)
69                 FAIL_MACRO(RTE_PTR_DIFF);
70         if (RTE_MAX(SMALLER, BIGGER) != BIGGER)
71                 FAIL_MACRO(RTE_MAX);
72         if (RTE_MIN(SMALLER, BIGGER) != SMALLER)
73                 FAIL_MACRO(RTE_MIN);
74
75         if (strncmp(RTE_STR(test), "test", sizeof("test")))
76                 FAIL_MACRO(RTE_STR);
77
78         return 0;
79 }
80
81 static int
82 test_misc(void)
83 {
84         char memdump[] = "memdump_test";
85         if (rte_bsf32(129))
86                 FAIL("rte_bsf32");
87
88         rte_memdump(stdout, "test", memdump, sizeof(memdump));
89         rte_hexdump(stdout, "test", memdump, sizeof(memdump));
90
91         rte_pause();
92
93         return 0;
94 }
95
96 static int
97 test_align(void)
98 {
99 #define FAIL_ALIGN(x, i, p)\
100         {printf(x "() test failed: %u %u\n", i, p);\
101         return -1;}
102 #define ERROR_FLOOR(res, i, pow) \
103                 (res % pow) ||                                          /* check if not aligned */ \
104                 ((res / pow) != (i / pow))              /* check if correct alignment */
105 #define ERROR_CEIL(res, i, pow) \
106                 (res % pow) ||                                          /* check if not aligned */ \
107                         ((i % pow) == 0 ?                               /* check if ceiling is invoked */ \
108                         val / pow != i / pow :                  /* if aligned */ \
109                         val / pow != (i / pow) + 1)             /* if not aligned, hence +1 */
110
111         uint32_t i, p, val;
112
113         for (i = 1, p = 1; i <= MAX_NUM; i ++) {
114                 if (rte_align32pow2(i) != p)
115                         FAIL_ALIGN("rte_align32pow2", i, p);
116                 if (i == p)
117                         p <<= 1;
118         }
119
120         for (p = 2; p <= MAX_NUM; p <<= 1) {
121
122                 if (!rte_is_power_of_2(p))
123                         FAIL("rte_is_power_of_2");
124
125                 for (i = 1; i <= MAX_NUM; i++) {
126                         /* align floor */
127                         if (RTE_ALIGN_FLOOR((uintptr_t)i, p) % p)
128                                 FAIL_ALIGN("RTE_ALIGN_FLOOR", i, p);
129
130                         val = RTE_PTR_ALIGN_FLOOR((uintptr_t) i, p);
131                         if (ERROR_FLOOR(val, i, p))
132                                 FAIL_ALIGN("RTE_PTR_ALIGN_FLOOR", i, p);
133
134                         val = RTE_ALIGN_FLOOR(i, p);
135                         if (ERROR_FLOOR(val, i, p))
136                                 FAIL_ALIGN("RTE_ALIGN_FLOOR", i, p);
137
138                         /* align ceiling */
139                         val = RTE_PTR_ALIGN((uintptr_t) i, p);
140                         if (ERROR_CEIL(val, i, p))
141                                 FAIL_ALIGN("RTE_PTR_ALIGN", i, p);
142
143                         val = RTE_ALIGN(i, p);
144                         if (ERROR_CEIL(val, i, p))
145                                 FAIL_ALIGN("RTE_ALIGN", i, p);
146
147                         val = RTE_ALIGN_CEIL(i, p);
148                         if (ERROR_CEIL(val, i, p))
149                                 FAIL_ALIGN("RTE_ALIGN_CEIL", i, p);
150
151                         val = RTE_PTR_ALIGN_CEIL((uintptr_t)i, p);
152                         if (ERROR_CEIL(val, i, p))
153                                 FAIL_ALIGN("RTE_PTR_ALIGN_CEIL", i, p);
154
155                         /* by this point we know that val is aligned to p */
156                         if (!rte_is_aligned((void*)(uintptr_t) val, p))
157                                 FAIL("rte_is_aligned");
158                 }
159         }
160         return 0;
161 }
162
163 static int
164 test_log2(void)
165 {
166         uint32_t i, base, compare;
167         const uint32_t max = 0x10000;
168         const uint32_t step = 1;
169
170         for (i = 0; i < max; i = i + step) {
171                 base = (uint32_t)ceilf(log2((uint32_t)i));
172                 compare = rte_log2_u32(i);
173                 if (base != compare) {
174                         printf("Wrong rte_log2_u32(%x) val %x, expected %x\n",
175                                 i, compare, base);
176                         return TEST_FAILED;
177                 }
178         }
179         return 0;
180 }
181
182 static int
183 test_common(void)
184 {
185         int ret = 0;
186         ret |= test_align();
187         ret |= test_macros(0);
188         ret |= test_misc();
189         ret |= test_log2();
190
191         return ret;
192 }
193
194 REGISTER_TEST_COMMAND(common_autotest, test_common);