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 <jasvinder.si...@intel.com>
---
app/test/Makefile | 2 +
app/test/test_crc.c | 265 ++++++++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 267 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..6cc0364
--- /dev/null
+++ b/app/test/test_crc.c
@@ -0,0 +1,265 @@
+/*-
+ * 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 <rte_net_crc.h>
+#include <rte_malloc.h>
+
+#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 */
+uint32_t crc32_vec_res, crc32_vec1_res, crc32_vec2_res;
+uint32_t crc16_vec_res, crc16_vec1_res, crc16_vec2_res;
+
+static int
+crc_calc(struct rte_mempool *mp,
+ const uint8_t *vec,
+ uint32_t vec_len,
+ enum rte_net_crc_type type)
+{
+ uint8_t *data;
+ struct rte_mbuf *mbuf;
+
+ /* alloc first mbuf from the mempool */
+ mbuf = rte_pktmbuf_alloc(mp);
+ if (mbuf == NULL) {
+ printf("rte_pktmbuf_alloc() failed!\n");
+ return -1;
+ }
+
+ /* append data length to an mbuf */
+ data = (uint8_t *)rte_pktmbuf_append(mbuf, vec_len);
+
+ /* copy ref_vector */
+ rte_memcpy(data, vec, vec_len);
+
+ /* dump mbuf data on console*/
+ rte_pktmbuf_dump(stdout, mbuf, vec_len);
+
+ /* compute CRC */
+ uint32_t ret = rte_net_crc_calc(mbuf, 0, vec_len, type);
+
+ /* free mbuf */
+ rte_pktmbuf_free(mbuf);
+
+ return ret;
+}
+
+static void
+crc_calc_scalar(struct rte_mempool *mp)
+{
+ uint32_t i;
+ enum rte_net_crc_type type;
+ uint8_t *test_data;
+
+ /* 32-bit ethernet CRC: scalar result */
+ type = RTE_NET_CRC32_ETH;
+ crc32_vec_res = crc_calc(mp,
+ crc_vec,
+ CRC_VEC_LEN,
+ type);
+
+ /* 32-bit ethernet CRC scalar result*/
+ 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);
+
+ crc32_vec1_res = crc_calc(mp,
+ test_data,
+ CRC32_VEC_LEN1,
+ type);
+
+ /* 32-bit ethernet CRC scalar result */
+ 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);
+
+ crc32_vec2_res = crc_calc(mp,
+ test_data,
+ CRC32_VEC_LEN2,
+ type);
+
+ /* 16-bit CCITT CRC scalar result */
+ type = RTE_NET_CRC16_CCITT;
+ crc16_vec_res = crc_calc(mp,
+ crc_vec,
+ CRC_VEC_LEN,
+ type);
+
+ /* 16-bit CCITT CRC scalar result */
+ crc16_vec1_res = crc_calc(mp,
+ crc16_vec1,
+ CRC16_VEC_LEN1,
+ type);
+
+ /* 16-bit CCITT CRC scalar result*/
+ crc16_vec2_res = crc_calc(mp,
+ crc16_vec2,
+ CRC16_VEC_LEN2,
+ type);
+}
+
+static int
+test_crc(void) {
+ struct rte_mempool *pktmbuf_pool = NULL;
+ uint32_t i;
+ enum rte_net_crc_type type;
+ uint8_t *test_data;
+ uint32_t ret;
+
+ /* 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;
+ }
+
+ /* set crc scalar mode */
+ rte_net_crc_set_alg(RTE_NET_CRC_SCALAR);
+ crc_calc_scalar(pktmbuf_pool);
+
+ /* set crc sse4.2 mode */
+ rte_net_crc_set_alg(RTE_NET_CRC_SSE42);
+
+ /* 32-bit ethernet CRC: Test 1 */
+ type = RTE_NET_CRC32_ETH;
+
+ ret = crc_calc(pktmbuf_pool,
+ crc_vec,
+ CRC_VEC_LEN,
+ type);
+ if (ret != crc32_vec_res) {
+ 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,
+ type);
+ if (ret != crc32_vec1_res) {
+ 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,
+ type);
+ if (ret != crc32_vec2_res) {
+ 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,
+ type);
+ if (ret != crc16_vec_res) {
+ 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,
+ type);
+ if (ret != crc16_vec1_res) {
+ 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,
+ type);
+ if (ret != crc16_vec2_res) {
+ printf("test_crc (16-bit): test6 failed!\n");
+ return -1;
+ }
+
+ return 0;
+}
+
+REGISTER_TEST_COMMAND(crc_autotest, test_crc);
--
2.5.5
