Re: [PATCH v2 0/9] crypto: x86 - stop using the SIMD helper

Herbert Xu
2025-04-03T02:56:40Z

On Thu, Apr 03, 2025 at 02:14:53AM +0000, Eric Biggers wrote:
>
> It's not the 90s anymore. Crypto is fast now, and used ubiquitously.

I have to say that you've done a great job in improving crypto
performance on x86 and I'm very pleased with being able to
encrypt 256 bytes in just over 100 CPU cycles and doing a
whole page takes less than 1000 cycles.

But this is only possible with SIMD instructions which we do not
support in hard IRQ context.

Cheers,
--
Email: Herbert Xu <herbert@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
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