linux-kernel - Re: [PATCH v8 0/7] Optimize dm-verity and fsverity using multibuffer hashing

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Message-ID: <Z7FM9rhEA7n476EJ@gondor.apana.org.au>
Date: Sun, 16 Feb 2025 10:27:02 +0800
From: Herbert Xu <herbert@...dor.apana.org.au>
To: Jakub Kicinski <kuba@...nel.org>
Cc: Eric Biggers <ebiggers@...nel.org>, fsverity@...ts.linux.dev,
	linux-crypto@...r.kernel.org, dm-devel@...ts.linux.dev,
	x86@...nel.org, linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org, Ard Biesheuvel <ardb@...nel.org>,
	Sami Tolvanen <samitolvanen@...gle.com>,
	Alasdair Kergon <agk@...hat.com>, Mike Snitzer <snitzer@...nel.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Mikulas Patocka <mpatocka@...hat.com>,
	David Howells <dhowells@...hat.com>, netdev@...r.kernel.org
Subject: Re: [PATCH v8 0/7] Optimize dm-verity and fsverity using multibuffer
 hashing

On Sat, Feb 15, 2025 at 09:04:12AM -0800, Jakub Kicinski wrote:
>
> Can confirm, FWIW. I don't know as much about IPsec, but for TLS
> lightweight SW-only crypto would be ideal.

Please note that while CPU-only crypto is the best for networking,
it actually operates in asynchronous mode on x86.  This is because
RX occurs in softirq context, which may not be able to use SIMD on
x86.

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