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authorJussi Kivilinna <jussi.kivilinna@iki.fi>2013-04-08 21:51:11 +0300
committerHerbert Xu <herbert@gondor.apana.org.au>2013-04-25 21:01:52 +0800
commitb5c5b072dc2f35d45d3404b957e264a3e8e71069 (patch)
tree55c726bf708c54cb50d3f564b39f6e5bac0b96bf /crypto
parent70177286e1d49dfa2ce565af10d1f63d9b769d77 (diff)
downloadlinux-b5c5b072dc2f35d45d3404b957e264a3e8e71069.tar.bz2
crypto: x86/camellia-aesni-avx - add more optimized XTS code
Add more optimized XTS code for camellia-aesni-avx, for smaller stack usage and small boost for speed. tcrypt results, with Intel i5-2450M: enc dec 16B 1.10x 1.01x 64B 0.82x 0.77x 256B 1.14x 1.10x 1024B 1.17x 1.16x 8192B 1.10x 1.11x Since XTS is practically always used with data blocks of size 512 bytes or more, I chose to not make use of camellia-2way for block sized smaller than 256 bytes. This causes slower result in tcrypt for 64 bytes. Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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