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

Danny Tsen
2023-09-15T11:24:00Z

Thanks Herbert.

-Danny

On 9/15/23 5:41 AM, Herbert Xu wrote:
> 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.