| /* SPDX-License-Identifier: GPL-2.0 */ |
| #ifndef _LINUX_CRC64_H |
| #define _LINUX_CRC64_H |
| |
| #include <linux/types.h> |
| |
| /** |
| * crc64_be - Calculate bitwise big-endian ECMA-182 CRC64 |
| * @crc: seed value for computation. 0 or (u64)~0 for a new CRC calculation, |
| * or the previous crc64 value if computing incrementally. |
| * @p: pointer to buffer over which CRC64 is run |
| * @len: length of buffer @p |
| */ |
| u64 crc64_be(u64 crc, const void *p, size_t len); |
| |
| /** |
| * crc64_nvme - Calculate CRC64-NVME |
| * @crc: seed value for computation. 0 for a new CRC calculation, or the |
| * previous crc64 value if computing incrementally. |
| * @p: pointer to buffer over which CRC64 is run |
| * @len: length of buffer @p |
| * |
| * This computes the CRC64 defined in the NVME NVM Command Set Specification, |
| * *including the bitwise inversion at the beginning and end*. |
| */ |
| u64 crc64_nvme(u64 crc, const void *p, size_t len); |
| |
| #endif /* _LINUX_CRC64_H */ |
