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From: Andrey Smirnov <andrew.smirnov@gmail.com>
To: linux-crypto@vger.kernel.org
Cc: "Andrey Smirnov" <andrew.smirnov@gmail.com>,
	"Chris Healy" <cphealy@gmail.com>,
	"Lucas Stach" <l.stach@pengutronix.de>,
	"Horia Geantă" <horia.geanta@nxp.com>,
	"Herbert Xu" <herbert@gondor.apana.org.au>,
	"Iuliana Prodan" <iuliana.prodan@nxp.com>,
	linux-kernel@vger.kernel.org, linux-imx@nxp.com
Subject: [PATCH v3 0/6] enable CAAM's HWRNG as default
Date: Wed, 20 Nov 2019 08:53:35 -0800	[thread overview]
Message-ID: <20191120165341.32669-1-andrew.smirnov@gmail.com> (raw)

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.


Changes since [v1]:

    - Original hw_random replaced with the one using output of TRNG directly

    - SEC4 DRNG IP block exposed via crypto API

    - Small fix regarding use of GFP_DMA added to the series

Chagnes since [v2]:

    - msleep in polling loop to avoid wasting CPU cycles

    - caam_trng_read() bails out early if 'wait' is set to 'false'

    - fixed typo in ZII's name

Feedback is welcome!

Thanks,
Andrey Smirnov

[discussion] https://patchwork.kernel.org/patch/9850669/
[v1] lore.kernel.org/lkml/20191029162916.26579-1-andrew.smirnov@gmail.com
[v2] lore.kernel.org/lkml/20191118153843.28136-1-andrew.smirnov@gmail.com

Andrey Smirnov (6):
  crypto: caam - RNG4 TRNG errata
  crypto: caam - enable prediction resistance in HRWNG
  crypto: caam - allocate RNG instantiation descriptor with GFP_DMA
  crypto: caam - move RNG presense check into a shared function
  crypto: caam - replace DRNG with TRNG for use with hw_random
  crypto: caam - expose SEC4 DRNG via crypto RNG API

 drivers/crypto/caam/Kconfig   |  15 +-
 drivers/crypto/caam/Makefile  |   3 +-
 drivers/crypto/caam/caamrng.c | 358 ----------------------------------
 drivers/crypto/caam/ctrl.c    |  29 ++-
 drivers/crypto/caam/desc.h    |   2 +
 drivers/crypto/caam/drng.c    | 175 +++++++++++++++++
 drivers/crypto/caam/intern.h  |  32 ++-
 drivers/crypto/caam/jr.c      |   3 +-
 drivers/crypto/caam/regs.h    |  14 +-
 drivers/crypto/caam/trng.c    |  89 +++++++++
 10 files changed, 338 insertions(+), 382 deletions(-)
 delete mode 100644 drivers/crypto/caam/caamrng.c
 create mode 100644 drivers/crypto/caam/drng.c
 create mode 100644 drivers/crypto/caam/trng.c

-- 
2.21.0


             reply	other threads:[~2019-11-20 16:54 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-20 16:53 Andrey Smirnov [this message]
2019-11-20 16:53 ` [PATCH v3 1/6] crypto: caam - RNG4 TRNG errata Andrey Smirnov
2019-11-20 16:53 ` [PATCH v3 2/6] crypto: caam - enable prediction resistance in HRWNG Andrey Smirnov
2019-11-20 16:53 ` [PATCH v3 3/6] crypto: caam - allocate RNG instantiation descriptor with GFP_DMA Andrey Smirnov
2019-11-20 16:53 ` [PATCH v3 4/6] crypto: caam - move RNG presense check into a shared function Andrey Smirnov
2019-11-20 16:53 ` [PATCH v3 5/6] crypto: caam - replace DRNG with TRNG for use with hw_random Andrey Smirnov
2019-11-20 17:18   ` Lucas Stach
2019-11-20 16:53 ` [PATCH v3 6/6] crypto: caam - expose SEC4 DRNG via crypto RNG API Andrey Smirnov
2019-11-21  1:24   ` Herbert Xu

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