Andrew Morton reported that AES-NI CTR optimization failed to compile
with gas 2.16.1, the error message is as follow:
arch/x86/crypto/aesni-intel_asm.S: Assembler messages:
arch/x86/crypto/aesni-intel_asm.S:752: Error: suffix or operands invalid for
`movq'
arch/x86/crypto/aesni-intel_asm.S:753:
Hello!
The CCMP encryption in mac80211 uses crypto API to encrypt 16 bytes at a
time. I believe this is not the best approach if hardware acceleration
is used. The ixp4xx_crypto driver doesn't even provide the "aes"
ciphers. It only provides block ciphers, such as "cbc(des)".
It would be much
On Thu, Mar 11, 2010 at 12:15:10PM -0800, Andrew Morton wrote:
>
> > + movq TCTR_LOW, INC
> > + movq CTR, TCTR_LOW
>
> ^^ these two lines don't assemble with gas 2.16.1:
>
> arch/x86/crypto/aesni-intel_asm.S: Assembler messages:
> arch/x86/crypto/aesni-intel_asm.S:752: Error: suffix or operan
On Mon, 01 Mar 2010 14:14:36 +0800
Huang Ying wrote:
> To take advantage of the hardware pipeline implementation of AES-NI
> instructions. CTR mode cryption is implemented in ASM to schedule
> multiple AES-NI instructions one after another. This way, some latency
> of AES-NI instruction can be el
