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crypto: twofish-x86_64-3way - add lrw support

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Patch adds LRW support for twofish-x86_64-3way by using lrw_crypt(). Patch has
been tested with tcrypt and automated filesystem tests.

Tcrypt benchmarks results (twofish-3way/twofish-asm speed ratios):

Intel Celeron T1600 (fam:6, model:15, step:13):

size	lrw-enc	lrw-dec
16B	0.99x	1.00x
64B	1.17x	1.17x
256B	1.26x	1.27x
1024B	1.30x	1.31x
8192B	1.31x	1.32x

AMD Phenom II 1055T (fam:16, model:10):

size	lrw-enc	lrw-dec
16B	1.06x	1.01x
64B	1.08x	1.14x
256B	1.19x	1.20x
1024B	1.21x	1.22x
8192B	1.23x	1.24x

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Jussi Kivilinna
2011-10-18 13:33:02 +03:00
committed by Herbert Xu
parent bee3a90ef5
commit 81559f9ad3
3 changed files with 145 additions and 5 deletions
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13
crypto/twofish_common.c
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@ -580,12 +580,9 @@ static const u8 calc_sb_tbl[512] = {
ctx->a[(j) + 1] = rol32(y, 9)
/* Perform the key setup. */
int twofish_setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int key_len)
int __twofish_setkey(struct twofish_ctx *ctx, const u8 *key,
unsigned int key_len, u32 *flags)
{
struct twofish_ctx *ctx = crypto_tfm_ctx(tfm);
u32 *flags = &tfm->crt_flags;
int i, j, k;
/* Temporaries for CALC_K. */
@ -701,7 +698,13 @@ int twofish_setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int key_len)
return 0;
}
EXPORT_SYMBOL_GPL(__twofish_setkey);
int twofish_setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int key_len)
{
return __twofish_setkey(crypto_tfm_ctx(tfm), key, key_len,
&tfm->crt_flags);
}
EXPORT_SYMBOL_GPL(twofish_setkey);
MODULE_LICENSE("GPL");