diff options
| author | Eric Biggers <ebiggers@google.com> | 2024-12-01 17:20:46 -0800 |
|---|---|---|
| committer | Eric Biggers <ebiggers@google.com> | 2024-12-01 17:23:13 -0800 |
| commit | 0961c3bcefa64d5f0999e2b703391862c733bb52 (patch) | |
| tree | 0bd98a15d64963236f3a438198895ed92fe93655 /lib/Kconfig | |
| parent | be3c45b070cba3be4dd248b38d4798e3e2859451 (diff) | |
lib/crc-t10dif: add support for arch overrides
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>
Diffstat (limited to 'lib/Kconfig')
| -rw-r--r-- | lib/Kconfig | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/lib/Kconfig b/lib/Kconfig index be59f7cdf448..e52a38d8d783 100644 --- a/lib/Kconfig +++ b/lib/Kconfig @@ -161,6 +161,38 @@ config CRC_T10DIF kernel tree needs to calculate CRC checks for use with the SCSI data integrity subsystem. +config ARCH_HAS_CRC_T10DIF + bool + +choice + prompt "CRC-T10DIF implementation" + depends on CRC_T10DIF + default CRC_T10DIF_IMPL_ARCH if ARCH_HAS_CRC_T10DIF + default CRC_T10DIF_IMPL_GENERIC if !ARCH_HAS_CRC_T10DIF + help + This option allows you to override the default choice of CRC-T10DIF + implementation. + +config CRC_T10DIF_IMPL_ARCH + bool "Architecture-optimized" if ARCH_HAS_CRC_T10DIF + help + Use the optimized implementation of CRC-T10DIF for the selected + architecture. It is recommended to keep this enabled, as it can + greatly improve CRC-T10DIF performance. + +config CRC_T10DIF_IMPL_GENERIC + bool "Generic implementation" + help + Use the generic table-based implementation of CRC-T10DIF. Selecting + this will reduce code size slightly but can greatly reduce CRC-T10DIF + performance. + +endchoice + +config CRC_T10DIF_ARCH + tristate + default CRC_T10DIF if CRC_T10DIF_IMPL_ARCH + config CRC64_ROCKSOFT tristate "CRC calculation for the Rocksoft model CRC64" select CRC64 |