Add the config CRYPTO_SHA256_MB which will enable the computation using the SHA256 multi-buffer algorithm. Signed-off-by: Megha Dey <megha.dey@xxxxxxxxxxxxxxx> Reviewed-by: Fenghua Yu <fenghua.yu@xxxxxxxxx> Reviewed-by: Tim Chen <tim.c.chen@xxxxxxxxxxxxxxx> --- crypto/Kconfig | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/crypto/Kconfig b/crypto/Kconfig index 5baaa9d..d8cc0f0 100644 --- a/crypto/Kconfig +++ b/crypto/Kconfig @@ -704,6 +704,22 @@ config CRYPTO_SHA1_MB lanes remain unfilled, a flush operation will be initiated to process the crypto jobs, adding a slight latency. +config CRYPTO_SHA256_MB + tristate "SHA256 digest algorithm (x86_64 Multi-Buffer, Experimental)" + depends on X86 && 64BIT + select CRYPTO_SHA256 + select CRYPTO_HASH + select CRYPTO_MCRYPTD + help + SHA-256 secure hash standard (FIPS 180-1/DFIPS 180-2) implemented + using multi-buffer technique. This algorithm computes on + multiple data lanes concurrently with SIMD instructions for + better throughput. It should not be enabled by default but + used when there is significant amount of work to keep the keep + the data lanes filled to get performance benefit. If the data + lanes remain unfilled, a flush operation will be initiated to + process the crypto jobs, adding a slight latency. + config CRYPTO_SHA256 tristate "SHA224 and SHA256 digest algorithm" select CRYPTO_HASH -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-crypto" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
