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| author | Megha Dey <megha.dey@linux.intel.com> | 2016-06-27 10:20:05 -0700 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2016-06-28 16:06:37 +0800 |
| commit | 026bb8aaf5162b881fdd56f12fa8a6f5a052e097 (patch) | |
| tree | 781c21692ba4529fe8bfd8966ba728845fa1c558 /crypto | |
| parent | 8c603ff28659e65fdae960cd3f952ec168fc773a (diff) | |
| download | linux-next-026bb8aaf5162b881fdd56f12fa8a6f5a052e097.tar.gz | |
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>
Diffstat (limited to 'crypto')
| -rw-r--r-- | crypto/Kconfig | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/crypto/Kconfig b/crypto/Kconfig index d8cc0f085278..62fcbb923753 100644 --- a/crypto/Kconfig +++ b/crypto/Kconfig @@ -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 |