linux-kernel - Re: [PATCH v9 0/9] enable CAAM's HWRNG as default

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Message-ID: <fab6192d-d35b-b26e-5bdc-b52b7d0347b7@nxp.com>
Date:   Fri, 20 Mar 2020 18:13:18 +0200
From:   Horia Geantă <horia.geanta@....com>
To:     Andrey Smirnov <andrew.smirnov@...il.com>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     linux-crypto@...r.kernel.org, Chris Healy <cphealy@...il.com>,
        Lucas Stach <l.stach@...gutronix.de>,
        Iuliana Prodan <iuliana.prodan@....com>,
        linux-kernel@...r.kernel.org, linux-imx@....com,
        Laurentiu Tudor <laurentiu.tudor@....com>,
        Stuart Yoder <stuyoder@...il.com>,
        Andrei Botila <andrei.botila@....com>
Subject: Re: [PATCH v9 0/9] enable CAAM's HWRNG as default

On 3/19/2020 6:12 PM, Andrey Smirnov wrote:
> Everyone:
> 
> This series is a continuation of original [discussion]. I don't know
> if what's in the series is enough to use CAAMs HWRNG system wide, but
> I am hoping that with enough iterations and feedback it will be.
> 
Andrey, thanks for the effort!

Herbert, Greg,

I hope it's ok to go with the fsl-mc bus dependency
	"bus: fsl-mc: add api to retrieve mc version"
	https://patchwork.kernel.org/patch/11447637/
included in this series through cryptodev-2.6 tree.

It applies cleanly on latest linux-next (next-20200320),
and it has been Acked-by Laurențiu (one of the fsl-mc bus maintainers).

Thank you,
Horia

[...]
> 
> Andrei Botila (1):
>   bus: fsl-mc: add api to retrieve mc version
> 
> Andrey Smirnov (8):
>   crypto: caam - allocate RNG instantiation descriptor with GFP_DMA
>   crypto: caam - use struct hwrng's .init for initialization
>   crypto: caam - drop global context pointer and init_done
>   crypto: caam - simplify RNG implementation
>   crypto: caam - check if RNG job failed
>   crypto: caam - invalidate entropy register during RNG initialization
>   crypto: caam - enable prediction resistance in HRWNG
>   crypto: caam - limit single JD RNG output to maximum of 16 bytes
> 
>  drivers/bus/fsl-mc/fsl-mc-bus.c |  33 +--
>  drivers/crypto/caam/Kconfig     |   1 +
>  drivers/crypto/caam/caamrng.c   | 405 ++++++++++++--------------------
>  drivers/crypto/caam/ctrl.c      |  88 +++++--
>  drivers/crypto/caam/desc.h      |   2 +
>  drivers/crypto/caam/intern.h    |   7 +-
>  drivers/crypto/caam/jr.c        |  13 +-
>  drivers/crypto/caam/regs.h      |   7 +-
>  include/linux/fsl/mc.h          |  16 ++
>  9 files changed, 276 insertions(+), 296 deletions(-)
>