From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jasvinder Singh Subject: [PATCH v2 2/2] app/test: add unit test for CRC computation Date: Tue, 28 Feb 2017 12:08:21 +0000 Message-ID: <1488283701-186162-3-git-send-email-jasvinder.singh@intel.com> References: <1487969657-172541-2-git-send-email-jasvinder.singh@intel.com> <1488283701-186162-1-git-send-email-jasvinder.singh@intel.com> Cc: declan.doherty@intel.com To: dev@dpdk.org Return-path: Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by dpdk.org (Postfix) with ESMTP id 0D36C532C for ; Tue, 28 Feb 2017 12:58:26 +0100 (CET) In-Reply-To: <1488283701-186162-1-git-send-email-jasvinder.singh@intel.com> List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" This patch provides a set of tests for verifying the functional correctness of 16-bit and 32-bit CRC APIs. Signed-off-by: Jasvinder Singh --- app/test/Makefile | 2 + app/test/test_crc.c | 229 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 231 insertions(+) create mode 100644 app/test/test_crc.c diff --git a/app/test/Makefile b/app/test/Makefile index 1a5e03d..2a497f7 100644 --- a/app/test/Makefile +++ b/app/test/Makefile @@ -160,6 +160,8 @@ SRCS-$(CONFIG_RTE_LIBRTE_CMDLINE) += test_cmdline_cirbuf.c SRCS-$(CONFIG_RTE_LIBRTE_CMDLINE) += test_cmdline_string.c SRCS-$(CONFIG_RTE_LIBRTE_CMDLINE) += test_cmdline_lib.c +SRCS-$(CONFIG_RTE_LIBRTE_NET) += test_crc.c + ifeq ($(CONFIG_RTE_LIBRTE_SCHED),y) SRCS-y += test_red.c SRCS-y += test_sched.c diff --git a/app/test/test_crc.c b/app/test/test_crc.c new file mode 100644 index 0000000..17c9161 --- /dev/null +++ b/app/test/test_crc.c @@ -0,0 +1,229 @@ +/*- + * 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 +#include + +#include "test.h" + +#define MBUF_DATA_SIZE 2048 +#define NB_MBUF 64 +#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 + +/* 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(struct rte_mempool *mp, + const uint8_t *vec, + uint32_t vec_len, + uint32_t crc_r, + enum rte_net_crc_type type) +{ + struct rte_net_crc_params p; + uint8_t *data; + + /* alloc first mbuf from the mempool */ + p.mbuf = rte_pktmbuf_alloc(mp); + if (p.mbuf == NULL) { + printf("rte_pktmbuf_alloc() failed!\n"); + return -1; + } + + /* copy parameters */ + p.type = type; + p.data_offset = 0; + p.data_len = vec_len; + + /* append data length to an mbuf */ + data = (uint8_t *)rte_pktmbuf_append(p.mbuf, p.data_len); + + /* copy ref_vector */ + rte_memcpy(data, vec, p.data_len); + + /* dump mbuf data on console*/ + rte_pktmbuf_dump(stdout, p.mbuf, p.data_len); + + /* compute CRC */ + int ret = rte_net_crc_calc(&p); + + if (crc_r != (uint32_t) ret) { + rte_pktmbuf_free(p.mbuf); + return ret; + } + + /* free mbuf */ + rte_pktmbuf_free(p.mbuf); + + return 0; +} + +static int +test_crc(void) { + struct rte_mempool *pktmbuf_pool = NULL; + uint32_t i; + enum rte_net_crc_type type; + uint8_t *test_data; + int ret = 0; + + /* init crc */ + if (rte_net_crc_init(RTE_NET_CRC_SCALAR) == -1) { + printf("test_crc: rte_net_crc_init() failed!\n"); + return -1; + } + + /* create pktmbuf pool */ + pktmbuf_pool = rte_pktmbuf_pool_create("pktmbuf_pool", + NB_MBUF, 32, 0, MBUF_DATA_SIZE, SOCKET_ID_ANY); + + if (pktmbuf_pool == NULL) { + printf("test_crc: cannot allocate mbuf pool!\n"); + return -1; + } + + /* 32-bit ethernet CRC: Test 1 */ + type = RTE_NET_CRC32_ETH; + + ret = crc_calc(pktmbuf_pool, + crc_vec, + CRC_VEC_LEN, + crc32_vec_res, + type); + if (ret) { + printf("test_crc(32-bit): test1 failed!\n"); + 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); + + ret = crc_calc(pktmbuf_pool, + test_data, + CRC32_VEC_LEN1, + crc32_vec1_res, + type); + if (ret) { + printf("test_crc(32-bit): test2 failed!\n"); + return -1; + } + + /* 32-bit ethernet CRC: Test 3 */ + test_data = rte_zmalloc(NULL, CRC32_VEC_LEN2, 0); + + for (i = 0; i < CRC32_VEC_LEN2; i += 12) + rte_memcpy(&test_data[i], crc32_vec1, 12); + + ret = crc_calc(pktmbuf_pool, + test_data, + CRC32_VEC_LEN2, + crc32_vec2_res, + type); + if (ret) { + printf("test_crc(32-bit): test3 failed!\n"); + return -1; + } + + /* 16-bit CCITT CRC: Test 4 */ + type = RTE_NET_CRC16_CCITT; + ret = crc_calc(pktmbuf_pool, + crc_vec, + CRC_VEC_LEN, + crc16_vec_res, + type); + if (ret) { + printf("test_crc (16-bit): test4 failed!\n"); + return -1; + } + + /* 16-bit CCITT CRC: Test 5 */ + ret = crc_calc(pktmbuf_pool, + crc16_vec1, + CRC16_VEC_LEN1, + crc16_vec1_res, + type); + if (ret) { + printf("test_crc (16-bit): test5 failed!\n"); + return -1; + } + + /* 16-bit CCITT CRC: Test 6 */ + ret = crc_calc(pktmbuf_pool, + crc16_vec2, + CRC16_VEC_LEN2, + crc16_vec2_res, + type); + if (ret) { + printf("test_crc (16-bit): test6 failed!\n"); + return -1; + } + + return 0; +} + +REGISTER_TEST_COMMAND(crc_autotest, test_crc); -- 2.5.5