test/test/test_common.c

   1 /*-
   2  *   BSD LICENSE
   3  *
   4  *   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
   5  *   All rights reserved.
   6  *
   7  *   Redistribution and use in source and binary forms, with or without
   8  *   modification, are permitted provided that the following conditions
   9  *   are met:
  10  *
  11  *     * Redistributions of source code must retain the above copyright
  12  *       notice, this list of conditions and the following disclaimer.
  13  *     * Redistributions in binary form must reproduce the above copyright
  14  *       notice, this list of conditions and the following disclaimer in
  15  *       the documentation and/or other materials provided with the
  16  *       distribution.
  17  *     * Neither the name of Intel Corporation nor the names of its
  18  *       contributors may be used to endorse or promote products derived
  19  *       from this software without specific prior written permission.
  20  *
  21  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  22  *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  23  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  24  *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  25  *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  26  *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  27  *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  28  *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  29  *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  30  *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  31  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  32  */
  33
  34 #include <stdio.h>
  35 #include <string.h>
  36 #include <rte_common.h>
  37 #include <rte_hexdump.h>
  38 #include <rte_pause.h>
  39
  40 #include "test.h"
  41
  42 #define MAX_NUM 1 << 20
  43
  44 #define FAIL(x)\
  45         {printf(x "() test failed!\n");\
  46         return -1;}
  47
  48 /* this is really a sanity check */
  49 static int
  50 test_macros(int __rte_unused unused_parm)
  51 {
  52 #define SMALLER 0x1000U
  53 #define BIGGER 0x2000U
  54 #define PTR_DIFF BIGGER - SMALLER
  55 #define FAIL_MACRO(x)\
  56         {printf(#x "() test failed!\n");\
  57         return -1;}
  58
  59         uintptr_t unused = 0;
  60
  61         RTE_SET_USED(unused);
  62
  63         if ((uintptr_t)RTE_PTR_ADD(SMALLER, PTR_DIFF) != BIGGER)
  64                 FAIL_MACRO(RTE_PTR_ADD);
  65         if ((uintptr_t)RTE_PTR_SUB(BIGGER, PTR_DIFF) != SMALLER)
  66                 FAIL_MACRO(RTE_PTR_SUB);
  67         if (RTE_PTR_DIFF(BIGGER, SMALLER) != PTR_DIFF)
  68                 FAIL_MACRO(RTE_PTR_DIFF);
  69         if (RTE_MAX(SMALLER, BIGGER) != BIGGER)
  70                 FAIL_MACRO(RTE_MAX);
  71         if (RTE_MIN(SMALLER, BIGGER) != SMALLER)
  72                 FAIL_MACRO(RTE_MIN);
  73
  74         if (strncmp(RTE_STR(test), "test", sizeof("test")))
  75                 FAIL_MACRO(RTE_STR);
  76
  77         return 0;
  78 }
  79
  80 static int
  81 test_misc(void)
  82 {
  83         char memdump[] = "memdump_test";
  84         if (rte_bsf32(129))
  85                 FAIL("rte_bsf32");
  86
  87         rte_memdump(stdout, "test", memdump, sizeof(memdump));
  88         rte_hexdump(stdout, "test", memdump, sizeof(memdump));
  89
  90         rte_pause();
  91
  92         return 0;
  93 }
  94
  95 static int
  96 test_align(void)
  97 {
  98 #define FAIL_ALIGN(x, i, p)\
  99         {printf(x "() test failed: %u %u\n", i, p);\
 100         return -1;}
 101 #define ERROR_FLOOR(res, i, pow) \
 102                 (res % pow) ||                                          /* check if not aligned */ \
 103                 ((res / pow) != (i / pow))              /* check if correct alignment */
 104 #define ERROR_CEIL(res, i, pow) \
 105                 (res % pow) ||                                          /* check if not aligned */ \
 106                         ((i % pow) == 0 ?                               /* check if ceiling is invoked */ \
 107                         val / pow != i / pow :                  /* if aligned */ \
 108                         val / pow != (i / pow) + 1)             /* if not aligned, hence +1 */
 109
 110         uint32_t i, p, val;
 111
 112         for (i = 1, p = 1; i <= MAX_NUM; i ++) {
 113                 if (rte_align32pow2(i) != p)
 114                         FAIL_ALIGN("rte_align32pow2", i, p);
 115                 if (i == p)
 116                         p <<= 1;
 117         }
 118
 119         for (p = 2; p <= MAX_NUM; p <<= 1) {
 120
 121                 if (!rte_is_power_of_2(p))
 122                         FAIL("rte_is_power_of_2");
 123
 124                 for (i = 1; i <= MAX_NUM; i++) {
 125                         /* align floor */
 126                         if (RTE_ALIGN_FLOOR((uintptr_t)i, p) % p)
 127                                 FAIL_ALIGN("RTE_ALIGN_FLOOR", i, p);
 128
 129                         val = RTE_PTR_ALIGN_FLOOR((uintptr_t) i, p);
 130                         if (ERROR_FLOOR(val, i, p))
 131                                 FAIL_ALIGN("RTE_PTR_ALIGN_FLOOR", i, p);
 132
 133                         val = RTE_ALIGN_FLOOR(i, p);
 134                         if (ERROR_FLOOR(val, i, p))
 135                                 FAIL_ALIGN("RTE_ALIGN_FLOOR", i, p);
 136
 137                         /* align ceiling */
 138                         val = RTE_PTR_ALIGN((uintptr_t) i, p);
 139                         if (ERROR_CEIL(val, i, p))
 140                                 FAIL_ALIGN("RTE_PTR_ALIGN", i, p);
 141
 142                         val = RTE_ALIGN(i, p);
 143                         if (ERROR_CEIL(val, i, p))
 144                                 FAIL_ALIGN("RTE_ALIGN", i, p);
 145
 146                         val = RTE_ALIGN_CEIL(i, p);
 147                         if (ERROR_CEIL(val, i, p))
 148                                 FAIL_ALIGN("RTE_ALIGN_CEIL", i, p);
 149
 150                         val = RTE_PTR_ALIGN_CEIL((uintptr_t)i, p);
 151                         if (ERROR_CEIL(val, i, p))
 152                                 FAIL_ALIGN("RTE_PTR_ALIGN_CEIL", i, p);
 153
 154                         /* by this point we know that val is aligned to p */
 155                         if (!rte_is_aligned((void*)(uintptr_t) val, p))
 156                                 FAIL("rte_is_aligned");
 157                 }
 158         }
 159         return 0;
 160 }
 161
 162 static int
 163 test_common(void)
 164 {
 165         int ret = 0;
 166         ret |= test_align();
 167         ret |= test_macros(0);
 168         ret |= test_misc();
 169
 170         return ret;
 171 }
 172
 173 REGISTER_TEST_COMMAND(common_autotest, test_common);