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Because kernel_fpu_begin() and kernel_fpu_end() operations are too slow, the performance gain of general mode implementation + aes-aesni is almost all compensated. The AES-NI support for more modes are implemented as follow: - Add a new AES algorithm implementation named __aes-aesni without kernel_fpu_begin/end() - Use fpu(<mode>(AES)) to provide kenrel_fpu_begin/end() invoking - Add <mode>(AES) ablkcipher, which uses cryptd(fpu(<mode>(AES))) to defer cryption to cryptd context in soft_irq context. Now the ctr, lrw, pcbc and xts support are added. Performance testing based on dm-crypt shows that cryption time can be reduced to 50% of general mode implementation + aes-aesni implementation. Signed-off-by: Huang Ying <ying.huang@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> |
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| .. | ||
| aes_glue.c | ||
| aes-i586-asm_32.S | ||
| aes-x86_64-asm_64.S | ||
| aesni-intel_asm.S | ||
| aesni-intel_glue.c | ||
| crc32c-intel.c | ||
| fpu.c | ||
| Makefile | ||
| salsa20_glue.c | ||
| salsa20-i586-asm_32.S | ||
| salsa20-x86_64-asm_64.S | ||
| twofish_glue.c | ||
| twofish-i586-asm_32.S | ||
| twofish-x86_64-asm_64.S | ||