On 12/1/20 1:57 PM, Herbert Xu wrote:
On Tue, Dec 01, 2020 at 08:45:56PM +0100, Ard Biesheuvel wrote:
Add ccm(aes) implementation from linux-wireless mailing list (see
http://permalink.gmane.org/gmane.linux.kernel.wireless.general/126679).
This eliminates FPU context store/restore overhead existing in more
general ccm_base(ctr(aes-aesni),aes-aesni) case in MAC calculation.
Suggested-by: Ben Greear <greearb@xxxxxxxxxxxxxxx>
Co-developed-by: Steve deRosier <derosier@xxxxxxxxxxxxxx>
Signed-off-by: Steve deRosier <derosier@xxxxxxxxxxxxxx>
Signed-off-by: Ard Biesheuvel <ardb@xxxxxxxxxx>
---
v2: avoid the SIMD helper, as it produces an CRYPTO_ALG_ASYNC aead, which
is not usable by the 802.11 ccmp driver
Sorry, but this is not the way to go. Please fix wireless to
use the async interface instead.
No one wanted to do this for the last 6+ years, so I don't think it is likely
to happen any time soon. If the patch is better than
existing behaviour, please let it into the kernel. And it is certainly
better in my test case.
Thanks,
Ben
--
Ben Greear <greearb@xxxxxxxxxxxxxxx>
Candela Technologies Inc http://www.candelatech.com
