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crypto: sha512-mb - Enable SHA512 multibuffer support 

Add the config CRYPTO_SHA512_MB which will enable the computation
using the SHA512 multi-buffer algorithm.

Signed-off-by: Megha Dey <megha.dey@linux.intel.com>
Reviewed-by: Fenghua Yu <fenghua.yu@intel.com>
Reviewed-by: Tim Chen <tim.c.chen@linux.intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
hifive-unleashed-5.1
Megha Dey 2016-06-27 10:20:05 -07:00 committed by Herbert Xu
parent 8c603ff286
commit 026bb8aaf5
1 changed files with 16 additions and 0 deletions
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crypto/Kconfig
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@ -720,6 +720,22 @@ config CRYPTO_SHA256_MB
lanes remain unfilled, a flush operation will be initiated to
process the crypto jobs, adding a slight latency.
config CRYPTO_SHA512_MB
tristate "SHA512 digest algorithm (x86_64 Multi-Buffer, Experimental)"
depends on X86 && 64BIT
select CRYPTO_SHA512
select CRYPTO_HASH
select CRYPTO_MCRYPTD
help
SHA-512 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