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34 #ifndef _RTE_NET_CRC_H_
35 #define _RTE_NET_CRC_H_
43 /** CRC polynomials */
44 #define CRC32_ETH_POLYNOMIAL 0x04c11db7UL
45 #define CRC16_CCITT_POLYNOMIAL 0x1021U
47 #define CRC_LUT_SIZE 256
50 enum rte_net_crc_type {
51 RTE_NET_CRC16_CCITT = 0,
56 /** CRC compute algorithm */
57 enum rte_net_crc_alg {
58 RTE_NET_CRC_SCALAR = 0,
64 * This API set the CRC computation algorithm (i.e. scalar version,
65 * x86 64-bit sse4.2 intrinsic version, etc.) and internal data
69 * This parameter is used to select the CRC implementation version.
70 * - RTE_NET_CRC_SCALAR
71 * - RTE_NET_CRC_SSE42 (Use 64-bit SSE4.2 intrinsic)
72 * - RTE_NET_CRC_NEON (Use ARM Neon intrinsic)
75 rte_net_crc_set_alg(enum rte_net_crc_alg alg);
81 * Pointer to the packet data for CRC computation
83 * Data length for CRC computation
85 * CRC type (enum rte_net_crc_type)
91 rte_net_crc_calc(const void *data,
93 enum rte_net_crc_type type);
100 #endif /* _RTE_NET_CRC_H_ */