crypto: sha256 - Create module providing optimized SHA256 routines using SSSE3, AVX or AVX2 instructions.

We added glue code and config options to create crypto
module that uses SSE/AVX/AVX2 optimized SHA256 x86_64 assembly routines.

Signed-off-by: Tim Chen <tim.c.chen@linux.intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

1 files changed, 11 insertions, 0 deletions

diff --git a/crypto/Kconfig b/crypto/Kconfig
index aed52b2e4a55..8064ef1fedc4 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -470,6 +470,17 @@ config CRYPTO_SHA1_SSSE3
           using Supplemental SSE3 (SSSE3) instructions or Advanced Vector
           Extensions (AVX), when available.
 
+config CRYPTO_SHA256_SSSE3
+        tristate "SHA256 digest algorithm (SSSE3/AVX/AVX2)"
+        depends on X86 && 64BIT
+        select CRYPTO_SHA256
+        select CRYPTO_HASH
+        help
+          SHA-256 secure hash standard (DFIPS 180-2) implemented
+          using Supplemental SSE3 (SSSE3) instructions, or Advanced Vector
+          Extensions version 1 (AVX1), or Advanced Vector Extensions
+          version 2 (AVX2) instructions, when available.
+
 config CRYPTO_SHA1_SPARC64
         tristate "SHA1 digest algorithm (SPARC64)"
         depends on SPARC64