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authorTim Chen <tim.c.chen@linux.intel.com>2013-05-01 12:52:50 -0700
committerHerbert Xu <herbert@gondor.apana.org.au>2013-05-24 17:55:27 +0800
commit0b95a7f85718adcbba36407ef88bba0a7379ed03 (patch)
tree1ae5bf45259fb38a7a6031fbec584c9696a5ce2b /crypto
parent31d939625a9a20b1badd2d4e6bf6fd39fa523405 (diff)
downloadlinux-linaro-stable-0b95a7f85718adcbba36407ef88bba0a7379ed03.tar.gz
crypto: crct10dif - Glue code to cast accelerated CRCT10DIF assembly as a crypto transform
Glue code that plugs the PCLMULQDQ accelerated CRC T10 DIF hash into the crypto framework. The config CRYPTO_CRCT10DIF_PCLMUL should be turned on to enable the feature. The crc_t10dif crypto library function will use this faster algorithm when crct10dif_pclmul module is loaded. Signed-off-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/Kconfig11
1 files changed, 11 insertions, 0 deletions
diff --git a/crypto/Kconfig b/crypto/Kconfig
index ceb3611efe44..d1ca6312d798 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -384,6 +384,17 @@ config CRYPTO_CRCT10DIF
a crypto transform. This allows for faster crc t10 diff
transforms to be used if they are available.
+config CRYPTO_CRCT10DIF_PCLMUL
+ tristate "CRCT10DIF PCLMULQDQ hardware acceleration"
+ depends on X86 && 64BIT && CRC_T10DIF
+ select CRYPTO_HASH
+ help
+ For x86_64 processors with SSE4.2 and PCLMULQDQ supported,
+ CRC T10 DIF PCLMULQDQ computation can be hardware
+ accelerated PCLMULQDQ instruction. This option will create
+ 'crct10dif-plcmul' module, which is faster when computing the
+ crct10dif checksum as compared with the generic table implementation.
+
config CRYPTO_GHASH
tristate "GHASH digest algorithm"
select CRYPTO_GF128MUL