ceph/src/spdk/dpdk/app/test/test_crc.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2017 Intel Corporation
   3  */
   4
   5 #include "test.h"
   6
   7 #include <rte_hexdump.h>
   8 #include <rte_malloc.h>
   9 #include <rte_memcpy.h>
  10 #include <rte_net_crc.h>
  11
  12 #define CRC_VEC_LEN        32
  13 #define CRC32_VEC_LEN1     1512
  14 #define CRC32_VEC_LEN2     348
  15 #define CRC16_VEC_LEN1     12
  16 #define CRC16_VEC_LEN2     2
  17 #define LINE_LEN           75
  18
  19 /* CRC test vector */
  20 static const uint8_t crc_vec[CRC_VEC_LEN] = {
  21         '0', '1', '2', '3', '4', '5', '6', '7',
  22         '8', '9', 'a', 'b', 'c', 'd', 'e', 'f',
  23         'g', 'h', 'i', 'j', 'A', 'B', 'C', 'D',
  24         'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L',
  25 };
  26
  27 /* 32-bit CRC test vector */
  28 static const uint8_t crc32_vec1[12] = {
  29         0xBE, 0xD7, 0x23, 0x47, 0x6B, 0x8F,
  30         0xB3, 0x14, 0x5E, 0xFB, 0x35, 0x59,
  31 };
  32
  33 /* 16-bit CRC test vector 1 */
  34 static const uint8_t crc16_vec1[CRC16_VEC_LEN1] = {
  35         0x0D, 0x01, 0x01, 0x23, 0x45, 0x67,
  36         0x89, 0x01, 0x23, 0x45, 0x00, 0x01,
  37 };
  38
  39 /* 16-bit CRC test vector 2 */
  40 static const uint8_t crc16_vec2[CRC16_VEC_LEN2] = {
  41         0x03, 0x3f,
  42 };
  43 /** CRC results */
  44 static const uint32_t crc32_vec_res = 0xb491aab4;
  45 static const uint32_t crc32_vec1_res = 0xac54d294;
  46 static const uint32_t crc32_vec2_res = 0xefaae02f;
  47 static const uint32_t crc16_vec_res = 0x6bec;
  48 static const uint16_t crc16_vec1_res = 0x8cdd;
  49 static const uint16_t crc16_vec2_res = 0xec5b;
  50
  51 static int
  52 crc_calc(const uint8_t *vec,
  53         uint32_t vec_len,
  54         enum rte_net_crc_type type)
  55 {
  56         /* compute CRC */
  57         uint32_t ret = rte_net_crc_calc(vec, vec_len, type);
  58
  59         /* dump data on console */
  60         debug_hexdump(stdout, NULL, vec, vec_len);
  61
  62         return  ret;
  63 }
  64
  65 static int
  66 test_crc_calc(void)
  67 {
  68         uint32_t i;
  69         enum rte_net_crc_type type;
  70         uint8_t *test_data;
  71         uint32_t result;
  72         int error;
  73
  74         /* 32-bit ethernet CRC: Test 1 */
  75         type = RTE_NET_CRC32_ETH;
  76
  77         result = crc_calc(crc_vec, CRC_VEC_LEN, type);
  78         if (result != crc32_vec_res)
  79                 return -1;
  80
  81         /* 32-bit ethernet CRC: Test 2 */
  82         test_data = rte_zmalloc(NULL, CRC32_VEC_LEN1, 0);
  83
  84         for (i = 0; i < CRC32_VEC_LEN1; i += 12)
  85                 rte_memcpy(&test_data[i], crc32_vec1, 12);
  86
  87         result = crc_calc(test_data, CRC32_VEC_LEN1, type);
  88         if (result != crc32_vec1_res) {
  89                 error = -2;
  90                 goto fail;
  91         }
  92
  93         /* 32-bit ethernet CRC: Test 3 */
  94         for (i = 0; i < CRC32_VEC_LEN2; i += 12)
  95                 rte_memcpy(&test_data[i], crc32_vec1, 12);
  96
  97         result = crc_calc(test_data, CRC32_VEC_LEN2, type);
  98         if (result != crc32_vec2_res) {
  99                 error = -3;
 100                 goto fail;
 101         }
 102
 103         /* 16-bit CCITT CRC:  Test 4 */
 104         type = RTE_NET_CRC16_CCITT;
 105         result = crc_calc(crc_vec, CRC_VEC_LEN, type);
 106         if (result != crc16_vec_res) {
 107                 error = -4;
 108                 goto fail;
 109         }
 110         /* 16-bit CCITT CRC:  Test 5 */
 111         result = crc_calc(crc16_vec1, CRC16_VEC_LEN1, type);
 112         if (result != crc16_vec1_res) {
 113                 error = -5;
 114                 goto fail;
 115         }
 116         /* 16-bit CCITT CRC:  Test 6 */
 117         result = crc_calc(crc16_vec2, CRC16_VEC_LEN2, type);
 118         if (result != crc16_vec2_res) {
 119                 error = -6;
 120                 goto fail;
 121         }
 122
 123         rte_free(test_data);
 124         return 0;
 125
 126 fail:
 127         rte_free(test_data);
 128         return error;
 129 }
 130
 131 static int
 132 test_crc(void)
 133 {
 134         int ret;
 135         /* set CRC scalar mode */
 136         rte_net_crc_set_alg(RTE_NET_CRC_SCALAR);
 137
 138         ret = test_crc_calc();
 139         if (ret < 0) {
 140                 printf("test_crc (scalar): failed (%d)\n", ret);
 141                 return ret;
 142         }
 143         /* set CRC sse4.2 mode */
 144         rte_net_crc_set_alg(RTE_NET_CRC_SSE42);
 145
 146         ret = test_crc_calc();
 147         if (ret < 0) {
 148                 printf("test_crc (x86_64_SSE4.2): failed (%d)\n", ret);
 149                 return ret;
 150         }
 151
 152         /* set CRC neon mode */
 153         rte_net_crc_set_alg(RTE_NET_CRC_NEON);
 154
 155         ret = test_crc_calc();
 156         if (ret < 0) {
 157                 printf("test crc (arm64 neon pmull): failed (%d)\n", ret);
 158                 return ret;
 159         }
 160
 161         return 0;
 162 }
 163
 164 REGISTER_TEST_COMMAND(crc_autotest, test_crc);