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authorJussi Kivilinna <jussi.kivilinna@iki.fi>2013-04-13 13:46:45 +0300
committerHerbert Xu <herbert@gondor.apana.org.au>2013-04-25 21:09:04 +0800
commit604880107010a1e5794552d184cd5471ea31b973 (patch)
treeed37e3b3e8454f758daab88a2fb9cb5f043ca8ad /crypto
parentad8b7c3e92868dd86c54d9d5321000bbb4096f0d (diff)
downloadlinux-604880107010a1e5794552d184cd5471ea31b973.tar.gz
crypto: blowfish - add AVX2/x86_64 implementation of blowfish cipher
Patch adds AVX2/x86-64 implementation of Blowfish cipher, requiring 32 parallel blocks for input (256 bytes). Table look-ups are performed using vpgatherdd instruction directly from vector registers and thus should be faster than earlier implementations. Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto')
-rw-r--r--crypto/Kconfig18
-rw-r--r--crypto/testmgr.c12
2 files changed, 30 insertions, 0 deletions
diff --git a/crypto/Kconfig b/crypto/Kconfig
index 0e7a23723b4..6b9564f9116 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -820,6 +820,24 @@ config CRYPTO_BLOWFISH_X86_64
See also:
<http://www.schneier.com/blowfish.html>
+config CRYPTO_BLOWFISH_AVX2_X86_64
+ tristate "Blowfish cipher algorithm (x86_64/AVX2)"
+ depends on X86 && 64BIT
+ select CRYPTO_ALGAPI
+ select CRYPTO_CRYPTD
+ select CRYPTO_ABLK_HELPER_X86
+ select CRYPTO_BLOWFISH_COMMON
+ select CRYPTO_BLOWFISH_X86_64
+ help
+ Blowfish cipher algorithm (x86_64/AVX2), by Bruce Schneier.
+
+ This is a variable key length cipher which can use keys from 32
+ bits to 448 bits in length. It's fast, simple and specifically
+ designed for use on "large microprocessors".
+
+ See also:
+ <http://www.schneier.com/blowfish.html>
+
config CRYPTO_CAMELLIA
tristate "Camellia cipher algorithms"
depends on CRYPTO
diff --git a/crypto/testmgr.c b/crypto/testmgr.c
index 380708477b3..f3effb42531 100644
--- a/crypto/testmgr.c
+++ b/crypto/testmgr.c
@@ -1655,6 +1655,9 @@ static const struct alg_test_desc alg_test_descs[] = {
.test = alg_test_null,
.fips_allowed = 1,
}, {
+ .alg = "__driver-cbc-blowfish-avx2",
+ .test = alg_test_null,
+ }, {
.alg = "__driver-cbc-camellia-aesni",
.test = alg_test_null,
}, {
@@ -1677,6 +1680,9 @@ static const struct alg_test_desc alg_test_descs[] = {
.test = alg_test_null,
.fips_allowed = 1,
}, {
+ .alg = "__driver-ecb-blowfish-avx2",
+ .test = alg_test_null,
+ }, {
.alg = "__driver-ecb-camellia-aesni",
.test = alg_test_null,
}, {
@@ -1948,6 +1954,9 @@ static const struct alg_test_desc alg_test_descs[] = {
.test = alg_test_null,
.fips_allowed = 1,
}, {
+ .alg = "cryptd(__driver-cbc-blowfish-avx2)",
+ .test = alg_test_null,
+ }, {
.alg = "cryptd(__driver-cbc-camellia-aesni)",
.test = alg_test_null,
}, {
@@ -1955,6 +1964,9 @@ static const struct alg_test_desc alg_test_descs[] = {
.test = alg_test_null,
.fips_allowed = 1,
}, {
+ .alg = "cryptd(__driver-ecb-blowfish-avx2)",
+ .test = alg_test_null,
+ }, {
.alg = "cryptd(__driver-ecb-camellia-aesni)",
.test = alg_test_null,
}, {