linux-kernel - Re: [PATCH] crypto: caam - enable hash api only on ARM platforms per default

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Message-ID: <258feb43-382d-4ea0-9164-357924350dec@nxp.com>
Date: Fri, 5 Jul 2024 09:39:19 +0000
From: Horia Geanta <horia.geanta@....com>
To: Marco Felsch <m.felsch@...gutronix.de>, Horia Geanta
	<horia.geanta@....com>, Pankaj Gupta <pankaj.gupta@....com>, Gaurav Jain
	<gaurav.jain@....com>, Herbert Xu <herbert@...dor.apana.org.au>
CC: "kernel@...gutronix.de" <kernel@...gutronix.de>,
	"linux-crypto@...r.kernel.org" <linux-crypto@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] crypto: caam - enable hash api only on ARM platforms per
 default

On 6/26/2024 6:57 PM, Marco Felsch wrote:
> Tests showed that ARMv8-A crypto extensions as implemented on the ARM
> Cortex-A53 on the i.MX8M family of processors are substantially faster
> than the same primitives offered by the CAAM.
> 
I disagree with compiling out the hash support.

If needed, algorithm priority could be changed - even at runtime,
using NETLINK_CRYPTO messages (needs CONFIG_CRYPTO_USER=y/m).

Thanks,
Horia