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0961c3bcef
Following what was done for CRC32, add support for architecture-specific override of the CRC-T10DIF library. This will allow the CRC-T10DIF library functions to access architecture-optimized code directly. Reviewed-by: Ard Biesheuvel <ardb@kernel.org> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Link: https://lore.kernel.org/r/20241202012056.209768-3-ebiggers@kernel.org Signed-off-by: Eric Biggers <ebiggers@google.com>
35 lines
759 B
C
35 lines
759 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _LINUX_CRC_T10DIF_H
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#define _LINUX_CRC_T10DIF_H
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#include <linux/types.h>
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#define CRC_T10DIF_DIGEST_SIZE 2
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#define CRC_T10DIF_BLOCK_SIZE 1
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u16 crc_t10dif_arch(u16 crc, const u8 *p, size_t len);
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u16 crc_t10dif_generic(u16 crc, const u8 *p, size_t len);
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static inline u16 crc_t10dif_update(u16 crc, const u8 *p, size_t len)
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{
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if (IS_ENABLED(CONFIG_CRC_T10DIF_ARCH))
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return crc_t10dif_arch(crc, p, len);
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return crc_t10dif_generic(crc, p, len);
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}
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static inline u16 crc_t10dif(const u8 *p, size_t len)
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{
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return crc_t10dif_update(0, p, len);
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}
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#if IS_ENABLED(CONFIG_CRC_T10DIF_ARCH)
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bool crc_t10dif_is_optimized(void);
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#else
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static inline bool crc_t10dif_is_optimized(void)
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{
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return false;
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}
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#endif
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#endif
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