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

[Danny Tsen]

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@xxxxxxxxxxxxx>
> > ---
> >   drivers/crypto/vmx/aesp8-ppc.pl | 141 +++++++++++++++++++++-----------
> >   1 file changed, 92 insertions(+), 49 deletions(-)
> Patch applied.  Thanks.