1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _LINUX_CRC64_H
3#define _LINUX_CRC64_H
4
5#include <linux/types.h>
6
7/**
8 * crc64_be - Calculate bitwise big-endian ECMA-182 CRC64
9 * @crc: seed value for computation. 0 or (u64)~0 for a new CRC calculation,
10 * or the previous crc64 value if computing incrementally.
11 * @p: pointer to buffer over which CRC64 is run
12 * @len: length of buffer @p
13 */
14u64 crc64_be(u64 crc, const void *p, size_t len);
15
16/**
17 * crc64_nvme - Calculate CRC64-NVME
18 * @crc: seed value for computation. 0 for a new CRC calculation, or the
19 * previous crc64 value if computing incrementally.
20 * @p: pointer to buffer over which CRC64 is run
21 * @len: length of buffer @p
22 *
23 * This computes the CRC64 defined in the NVME NVM Command Set Specification,
24 * *including the bitwise inversion at the beginning and end*.
25 */
26u64 crc64_nvme(u64 crc, const void *p, size_t len);
27
28#endif /* _LINUX_CRC64_H */
29