Re: [PATCH v2] crypto: vmx: Improved AES/XTS performance of 6-way unrolling for ppc.

Herbert Xu
2023-09-15T10:41:54Z

On Wed, Aug 30, 2023 at 09:49:11AM -0400, Danny Tsen wrote:
> Improve AES/XTS performance of 6-way unrolling for PowerPC up
> to 17% with tcrypt. This is done by using one instruction,
> vpermxor, to replace xor and vsldoi.
>
> The same changes were applied to OpenSSL code and a pull request was
> submitted.
>
> This patch has been tested with the kernel crypto module tcrypt.ko and
> has passed the selftest. The patch is also tested with
> CONFIG_CRYPTO_MANAGER_EXTRA_TESTS enabled.
>
> Signed-off-by: Danny Tsen <dtsen@linux.ibm.com>
> ---
> drivers/crypto/vmx/aesp8-ppc.pl | 141 +++++++++++++++++++++-----------
> 1 file changed, 92 insertions(+), 49 deletions(-)

Patch applied. Thanks.
--
Email: Herbert Xu <herbert@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
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