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Date:   Mon, 20 Nov 2023 13:48:16 +0100
From:   Corentin LABBE <clabbe@baylibre.com>
To:     Frank Wunderlich <frank-w@public-files.de>
Cc:     davem@davemloft.net, heiko@sntech.de, herbert@gondor.apana.org.au,
        krzysztof.kozlowski+dt@linaro.org, mturquette@baylibre.com,
        p.zabel@pengutronix.de, robh+dt@kernel.org, sboyd@kernel.org,
        ricardo@pardini.net, devicetree@vger.kernel.org,
        linux-arm-kernel@lists.infradead.org, linux-clk@vger.kernel.org,
        linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org,
        linux-rockchip@lists.infradead.org
Subject: Re: Aw: [PATCH 6/6] crypto: rockchip: add rk3588 driver
Message-ID: <ZVtVkACNHTcCjqGp@Red>
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 <20231107155532.3747113-7-clabbe@baylibre.com>
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Le Sun, Nov 12, 2023 at 03:04:28PM +0100, Frank Wunderlich a ?crit :
> Hi Corentin
> 
> thanks for working on it
> 
> > Gesendet: Dienstag, 07. November 2023 um 16:55 Uhr
> > Von: "Corentin Labbe" <clabbe@baylibre.com>
> > An: davem@davemloft.net, heiko@sntech.de, herbert@gondor.apana.org.au, krzysztof.kozlowski+dt@linaro.org, mturquette@baylibre.com, p.zabel@pengutronix.de, robh+dt@kernel.org, sboyd@kernel.org
> > Cc: ricardo@pardini.net, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-clk@vger.kernel.org, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org, linux-rockchip@lists.infradead.org, "Corentin Labbe" <clabbe@baylibre.com>
> > Betreff: [PATCH 6/6] crypto: rockchip: add rk3588 driver
> >
> > RK3588 have a new crypto IP, this patch adds basic support for it.
> > Only hashes and cipher are handled for the moment.
> >
> > Signed-off-by: Corentin Labbe <clabbe@baylibre.com>
> > ---
> >  drivers/crypto/Kconfig                        |  29 +
> >  drivers/crypto/rockchip/Makefile              |   5 +
> >  drivers/crypto/rockchip/rk2_crypto.c          | 739 ++++++++++++++++++
> >  drivers/crypto/rockchip/rk2_crypto.h          | 246 ++++++
> >  drivers/crypto/rockchip/rk2_crypto_ahash.c    | 344 ++++++++
> >  drivers/crypto/rockchip/rk2_crypto_skcipher.c | 576 ++++++++++++++
> >  6 files changed, 1939 insertions(+)
> >  create mode 100644 drivers/crypto/rockchip/rk2_crypto.c
> >  create mode 100644 drivers/crypto/rockchip/rk2_crypto.h
> >  create mode 100644 drivers/crypto/rockchip/rk2_crypto_ahash.c
> >  create mode 100644 drivers/crypto/rockchip/rk2_crypto_skcipher.c
> >
> > diff --git a/drivers/crypto/Kconfig b/drivers/crypto/Kconfig
> > index 79c3bb9c99c3..b6a2027b1f9a 100644
> > --- a/drivers/crypto/Kconfig
> > +++ b/drivers/crypto/Kconfig
> > @@ -660,6 +660,35 @@ config CRYPTO_DEV_ROCKCHIP_DEBUG
> >  	  the number of requests per algorithm and other internal stats.
> >
> >
> > +config CRYPTO_DEV_ROCKCHIP2
> > +	tristate "Rockchip's cryptographic offloader V2"
> > +	depends on OF && ARCH_ROCKCHIP
> > +	depends on PM
> 
> it should depend on CONFIG_CRYPTO_DEV_ROCKCHIP as rockchip folder is not included without it
> 
> drivers/crypto/Makefile
> obj-$(CONFIG_CRYPTO_DEV_ROCKCHIP) += rockchip/
> 

Hello

I will move all rockchip kconfig in the rockchip directory like I did for Allwinner, this will fix this.

> > +	select CRYPTO_ECB
> > +	select CRYPTO_CBC
> > +	select CRYPTO_AES
> > +	select CRYPTO_MD5
> > +	select CRYPTO_SHA1
> > +	select CRYPTO_SHA256
> > +	select CRYPTO_SHA512
> > +	select CRYPTO_SM3_GENERIC
> > +	select CRYPTO_HASH
> > +	select CRYPTO_SKCIPHER
> > +	select CRYPTO_ENGINE
> > +
> > +	help
> > +	  This driver interfaces with the hardware crypto offloader present
> > +	  on RK3566, RK3568 and RK3588.
> > +
> > +config CRYPTO_DEV_ROCKCHIP2_DEBUG
> > +	bool "Enable Rockchip V2 crypto stats"
> > +	depends on CRYPTO_DEV_ROCKCHIP2
> > +	depends on DEBUG_FS
> > +	help
> > +	  Say y to enable Rockchip crypto debug stats.
> > +	  This will create /sys/kernel/debug/rk3588_crypto/stats for displaying
> > +	  the number of requests per algorithm and other internal stats.
> > +
> >  config CRYPTO_DEV_ZYNQMP_AES
> >  	tristate "Support for Xilinx ZynqMP AES hw accelerator"
> >  	depends on ZYNQMP_FIRMWARE || COMPILE_TEST
> > diff --git a/drivers/crypto/rockchip/Makefile b/drivers/crypto/rockchip/Makefile
> > index 785277aca71e..452a12ff6538 100644
> 
> else i did some tests, but it does not seem that the offloader is used (requests stay at initial value after the bootup test)
> 
> i wonder about the last 3 lines in dmesg (fallback), seems i miss something for these.
> 
> root@bpi-r2pro:~# dmesg | grep crypto
> [    0.150643] alg: extra crypto tests enabled.  This is intended for developer use only.
> [    2.718110] rk2-crypto fe380000.crypto: will run requests pump with realtime priority
> [    2.720605] rk2-crypto fe380000.crypto: Registers crypto algos
> [    2.721910] rk2-crypto fe380000.crypto: Register ecb(aes) as ecb-aes-rk2
> [    2.724435] rk2-crypto fe380000.crypto: Register cbc(aes) as cbc-aes-rk2
> [    2.725072] rk2-crypto fe380000.crypto: Register xts(aes) as xts-aes-rk2
> [    2.725731] rk2-crypto fe380000.crypto: Register md5 as rk2-md5 3
> [    2.726310] rk2-crypto fe380000.crypto: Register sha1 as rk2-sha1 4
> [    2.726901] rk2-crypto fe380000.crypto: Register sha256 as rk2-sha256 5
> [    2.727521] rk2-crypto fe380000.crypto: Register sha384 as rk2-sha384 6
> [    2.728142] rk2-crypto fe380000.crypto: Register sha512 as rk2-sha512 7
> [    2.728763] rk2-crypto fe380000.crypto: Register sm3 as rk2-sm3 8
> [    3.502442] rk2-crypto fe380000.crypto: Fallback for xts-aes-rk2 is xts-aes-ce
> [    3.770678] rk2-crypto fe380000.crypto: Fallback for cbc-aes-rk2 is cbc-aes-ce
> [    3.939055] rk2-crypto fe380000.crypto: Fallback for ecb-aes-rk2 is ecb-aes-ce
> 
> root@bpi-r2pro:~# cat /sys/kernel/debug/rk2_crypto/stats
> rk2-crypto fe380000.crypto requests: 581
> ecb-aes-rk2 ecb(aes) reqs=132 fallback=1994
>         fallback due to length: 342
>         fallback due to alignment: 1648
>         fallback due to SGs: 0
> cbc-aes-rk2 cbc(aes) reqs=156 fallback=2182
>         fallback due to length: 329
>         fallback due to alignment: 1841
>         fallback due to SGs: 6
> xts-aes-rk2 xts(aes) reqs=137 fallback=2143
>         fallback due to length: 116
>         fallback due to alignment: 739
>         fallback due to SGs: 0
> rk2-md5 md5 reqs=14 fallback=739
> rk2-sha1 sha1 reqs=28 fallback=716
> rk2-sha256 sha256 reqs=25 fallback=654
> rk2-sha384 sha384 reqs=32 fallback=656
> rk2-sha512 sha512 reqs=34 fallback=638
> rk2-sm3 sm3 reqs=23 fallback=712
> root@bpi-r2pro:~# kcapi-rng -b 512 > rng.bin
> root@bpi-r2pro:~# cat /sys/kernel/debug/rk2_crypto/stats
> rk2-crypto fe380000.crypto requests: 581
> ecb-aes-rk2 ecb(aes) reqs=132 fallback=1994
>         fallback due to length: 342
>         fallback due to alignment: 1648
>         fallback due to SGs: 0
> cbc-aes-rk2 cbc(aes) reqs=156 fallback=2182
>         fallback due to length: 329
>         fallback due to alignment: 1841
>         fallback due to SGs: 6
> xts-aes-rk2 xts(aes) reqs=137 fallback=2143
>         fallback due to length: 116
>         fallback due to alignment: 739
>         fallback due to SGs: 0
> rk2-md5 md5 reqs=14 fallback=739
> rk2-sha1 sha1 reqs=28 fallback=716
> rk2-sha256 sha256 reqs=25 fallback=654
> rk2-sha384 sha384 reqs=32 fallback=656
> rk2-sha512 sha512 reqs=34 fallback=638
> rk2-sm3 sm3 reqs=23 fallback=712
> root@bpi-r2pro:~#
> 
> if needed this is my current defconfig/tree:
> 
> https://github.com/frank-w/BPI-Router-Linux/blob/6.6-r2pro2/arch/arm64/configs/quartz64_defconfig#L924
> 

You are using kcapi-rng but the driver do not support RNG yet. (and probably never if I continue to fail having good results with it).
So it is normal values does not change.

Thanks for your test
Regards