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| Started by | Megha Dey <megha.dey@intel.com> |
|---|---|
| First post | 2016-06-27 19:20 +0200 |
| Last post | 2016-06-27 19:20 +0200 |
| Articles | 1 — 1 participant |
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[PATCH 2/6] crypto: sha512-mb - Enable SHA512 multibuffer support Megha Dey <megha.dey@intel.com> - 2016-06-27 19:20 +0200
| From | Megha Dey <megha.dey@intel.com> |
|---|---|
| Date | 2016-06-27 19:20 +0200 |
| Subject | [PATCH 2/6] crypto: sha512-mb - Enable SHA512 multibuffer support |
| Message-ID | <rOImt-3d4-9@gated-at.bofh.it> |
From: Megha Dey <megha.dey@linux.intel.com> 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> --- crypto/Kconfig | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/crypto/Kconfig b/crypto/Kconfig index d8cc0f0..62fcbb9 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 -- 1.9.1
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