projects / ceph.git / blame
| Commit | Line | Data |
|---|---|---|
| 11fdf7f2 TL |
1 | /* SPDX-License-Identifier: BSD-3-Clause |
| 2 | * Copyright(c) 2017 Intel Corporation | |
| 3 | */ | |
| 4 | ||
| 5 | #ifndef _RTE_NET_CRC_H_ | |
| 6 | #define _RTE_NET_CRC_H_ | |
| 7 | ||
| 8 | #include <stdint.h> | |
| 9 | ||
| 10 | #ifdef __cplusplus | |
| 11 | extern "C" { | |
| 12 | #endif | |
| 13 | ||
| 11fdf7f2 TL |
14 | /** CRC types */ |
| 15 | enum rte_net_crc_type { | |
| 16 | RTE_NET_CRC16_CCITT = 0, | |
| 17 | RTE_NET_CRC32_ETH, | |
| 18 | RTE_NET_CRC_REQS | |
| 19 | }; | |
| 20 | ||
| 21 | /** CRC compute algorithm */ | |
| 22 | enum rte_net_crc_alg { | |
| 23 | RTE_NET_CRC_SCALAR = 0, | |
| 24 | RTE_NET_CRC_SSE42, | |
| 25 | RTE_NET_CRC_NEON, | |
| 26 | }; | |
| 27 | ||
| 28 | /** | |
| 29 | * This API set the CRC computation algorithm (i.e. scalar version, | |
| 30 | * x86 64-bit sse4.2 intrinsic version, etc.) and internal data | |
| 31 | * structure. | |
| 32 | * | |
| 33 | * @param alg | |
| 34 | * This parameter is used to select the CRC implementation version. | |
| 35 | * - RTE_NET_CRC_SCALAR | |
| 36 | * - RTE_NET_CRC_SSE42 (Use 64-bit SSE4.2 intrinsic) | |
| 37 | * - RTE_NET_CRC_NEON (Use ARM Neon intrinsic) | |
| 38 | */ | |
| 39 | void | |
| 40 | rte_net_crc_set_alg(enum rte_net_crc_alg alg); | |
| 41 | ||
| 42 | /** | |
| 43 | * CRC compute API | |
| 44 | * | |
| 45 | * @param data | |
| 46 | * Pointer to the packet data for CRC computation | |
| 47 | * @param data_len | |
| 48 | * Data length for CRC computation | |
| 49 | * @param type | |
| 50 | * CRC type (enum rte_net_crc_type) | |
| 51 | * | |
| 52 | * @return | |
| 53 | * CRC value | |
| 54 | */ | |
| 55 | uint32_t | |
| 56 | rte_net_crc_calc(const void *data, | |
| 57 | uint32_t data_len, | |
| 58 | enum rte_net_crc_type type); | |
| 59 | ||
| 60 | #ifdef __cplusplus | |
| 61 | } | |
| 62 | #endif | |
| 63 | ||
| 64 | ||
| 65 | #endif /* _RTE_NET_CRC_H_ */ |