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Diffstat (limited to 'test/test/test_crc.c')
| -rw-r--r-- | test/test/test_crc.c | 184 |
1 files changed, 184 insertions, 0 deletions
diff --git a/test/test/test_crc.c b/test/test/test_crc.c new file mode 100644 index 00000000..cd5af69a --- /dev/null +++ b/test/test/test_crc.c @@ -0,0 +1,184 @@ +/*- + * BSD LICENSE + * + * Copyright(c) 2017 Intel Corporation. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "test.h" + +#include <rte_hexdump.h> +#include <rte_malloc.h> +#include <rte_memcpy.h> +#include <rte_net_crc.h> + +#define CRC_VEC_LEN 32 +#define CRC32_VEC_LEN1 1512 +#define CRC32_VEC_LEN2 348 +#define CRC16_VEC_LEN1 12 +#define CRC16_VEC_LEN2 2 +#define LINE_LEN 75 + +/* CRC test vector */ +static const uint8_t crc_vec[CRC_VEC_LEN] = { + '0', '1', '2', '3', '4', '5', '6', '7', + '8', '9', 'a', 'b', 'c', 'd', 'e', 'f', + 'g', 'h', 'i', 'j', 'A', 'B', 'C', 'D', + 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', +}; + +/* 32-bit CRC test vector */ +static const uint8_t crc32_vec1[12] = { + 0xBE, 0xD7, 0x23, 0x47, 0x6B, 0x8F, + 0xB3, 0x14, 0x5E, 0xFB, 0x35, 0x59, +}; + +/* 16-bit CRC test vector 1 */ +static const uint8_t crc16_vec1[CRC16_VEC_LEN1] = { + 0x0D, 0x01, 0x01, 0x23, 0x45, 0x67, + 0x89, 0x01, 0x23, 0x45, 0x00, 0x01, +}; + +/* 16-bit CRC test vector 2 */ +static const uint8_t crc16_vec2[CRC16_VEC_LEN2] = { + 0x03, 0x3f, +}; +/** CRC results */ +static const uint32_t crc32_vec_res = 0xb491aab4; +static const uint32_t crc32_vec1_res = 0xac54d294; +static const uint32_t crc32_vec2_res = 0xefaae02f; +static const uint32_t crc16_vec_res = 0x6bec; +static const uint16_t crc16_vec1_res = 0x8cdd; +static const uint16_t crc16_vec2_res = 0xec5b; + +static int +crc_calc(const uint8_t *vec, + uint32_t vec_len, + enum rte_net_crc_type type) +{ + /* compute CRC */ + uint32_t ret = rte_net_crc_calc(vec, vec_len, type); + + /* dump data on console */ + TEST_HEXDUMP(stdout, NULL, vec, vec_len); + + return ret; +} + +static int +test_crc_calc(void) +{ + uint32_t i; + enum rte_net_crc_type type; + uint8_t *test_data; + uint32_t result; + int error; + + /* 32-bit ethernet CRC: Test 1 */ + type = RTE_NET_CRC32_ETH; + + result = crc_calc(crc_vec, CRC_VEC_LEN, type); + if (result != crc32_vec_res) + return -1; + + /* 32-bit ethernet CRC: Test 2 */ + test_data = rte_zmalloc(NULL, CRC32_VEC_LEN1, 0); + + for (i = 0; i < CRC32_VEC_LEN1; i += 12) + rte_memcpy(&test_data[i], crc32_vec1, 12); + + result = crc_calc(test_data, CRC32_VEC_LEN1, type); + if (result != crc32_vec1_res) { + error = -2; + goto fail; + } + + /* 32-bit ethernet CRC: Test 3 */ + for (i = 0; i < CRC32_VEC_LEN2; i += 12) + rte_memcpy(&test_data[i], crc32_vec1, 12); + + result = crc_calc(test_data, CRC32_VEC_LEN2, type); + if (result != crc32_vec2_res) { + error = -3; + goto fail; + } + + /* 16-bit CCITT CRC: Test 4 */ + type = RTE_NET_CRC16_CCITT; + result = crc_calc(crc_vec, CRC_VEC_LEN, type); + if (result != crc16_vec_res) { + error = -4; + goto fail; + } + /* 16-bit CCITT CRC: Test 5 */ + result = crc_calc(crc16_vec1, CRC16_VEC_LEN1, type); + if (result != crc16_vec1_res) { + error = -5; + goto fail; + } + /* 16-bit CCITT CRC: Test 6 */ + result = crc_calc(crc16_vec2, CRC16_VEC_LEN2, type); + if (result != crc16_vec2_res) { + error = -6; + goto fail; + } + + rte_free(test_data); + return 0; + +fail: + rte_free(test_data); + return error; +} + +static int +test_crc(void) +{ + int ret; + /* set CRC scalar mode */ + rte_net_crc_set_alg(RTE_NET_CRC_SCALAR); + + ret = test_crc_calc(); + if (ret < 0) { + printf("test_crc (scalar): failed (%d)\n", ret); + return ret; + } + /* set CRC sse4.2 mode */ + rte_net_crc_set_alg(RTE_NET_CRC_SSE42); + + ret = test_crc_calc(); + if (ret < 0) { + printf("test_crc (x86_64_SSE4.2): failed (%d)\n", ret); + return ret; + } + + return 0; +} + +REGISTER_TEST_COMMAND(crc_autotest, test_crc); |