linux-kernel - Re: [RESEND PATCH 00/10] crypto: k3: Add sa2ul driver

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Date:   Fri, 28 Jun 2019 10:44:26 +0530
From:   keerthy <j-keerthy@...com>
To:     Eric Biggers <ebiggers@...nel.org>
CC:     <herbert@...dor.apana.org.au>, <davem@...emloft.net>,
        <robh+dt@...nel.org>, <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <t-kristo@...com>,
        <linux-crypto@...r.kernel.org>, <nm@...com>
Subject: Re: [RESEND PATCH 00/10] crypto: k3: Add sa2ul driver



On 6/28/2019 10:23 AM, Eric Biggers wrote:
> Hi Keerthy,
> 
> On Fri, Jun 28, 2019 at 09:57:35AM +0530, Keerthy wrote:
>> The series adds Crypto hardware accelerator support for SA2UL.
>> SA2UL stands for security accelerator ultra lite.
>>
>> The Security Accelerator (SA2_UL) subsystem provides hardware
>> cryptographic acceleration for the following use cases:
>> • Encryption and authentication for secure boot
>> • Encryption and authentication of content in applications
>>    requiring DRM (digital rights management) and
>>    content/asset protection
>> The device includes one instantiation of SA2_UL named SA2_UL0
>>
>> SA2UL needs on tx channel and a pair of rx dma channels.
>>
>> This series has dependency on UDMA series. Hence is based on top of:
>>
>> https://patchwork.kernel.org/project/linux-dmaengine/list/?series=114105
>>
>> The above series adds couple of dmaengine APIs that are used
>> by the sa2ul driver. Hence there is a hard dependency on the
>> above series.
>>
>> Resending with linux-crypto list in Cc.
>>
>> Keerthy (10):
>>    dt-bindings: crypto: k3: Add sa2ul bindings documentation
>>    crypto: sa2ul: Add crypto driver
>>    crypto: sa2ul: Add AES ECB Mode support
>>    crypto: sa2ul: Add aead support for hmac(sha1)cbc(aes) algorithm
>>    crypto: sha256_generic: Export the Transform function
>>    crypto: sa2ul: Add hmac(sha256)cbc(aes) AEAD Algo support
>>    crypto: sa2ul: Add hmac(sha1) HMAC algorithm support
>>    crypto: sa2ul: Add hmac(sha256) HMAC algorithm support
>>    sa2ul: Add 3DES ECB & CBC Mode support
>>    arm64: dts: k3-am6: Add crypto accelarator node
>>
>>   .../devicetree/bindings/crypto/sa2ul.txt      |   47 +
>>   arch/arm64/boot/dts/ti/k3-am65-main.dtsi      |   33 +
>>   crypto/sha256_generic.c                       |    3 +-
>>   drivers/crypto/Kconfig                        |   17 +
>>   drivers/crypto/Makefile                       |    1 +
>>   drivers/crypto/sa2ul.c                        | 2232 +++++++++++++++++
>>   drivers/crypto/sa2ul.h                        |  384 +++
>>   include/crypto/sha.h                          |    1 +
>>   8 files changed, 2717 insertions(+), 1 deletion(-)
>>   create mode 100644 Documentation/devicetree/bindings/crypto/sa2ul.txt
>>   create mode 100644 drivers/crypto/sa2ul.c
>>   create mode 100644 drivers/crypto/sa2ul.h
> 
> Did you run the crypto self-tests on this driver?  i.e. boot a kernel with
> 
> 	# CONFIG_CRYPTO_MANAGER_DISABLE_TESTS is not set
> 	CONFIG_DEBUG_KERNEL=y
> 	CONFIG_CRYPTO_MANAGER_EXTRA_TESTS=y
> 
> What are the results?

Eric,

Thanks for your response. I did try with that. All test cases
were passing on 4.19 kernel before the testmgr revamp.

Currently few of the test cases do fail. For ex: Appending
the last ivlen bytes of cipher text as the IV.

> 
> Also, this patchset does not compile for me.

This has dependency on UDMA series: 
https://patchwork.kernel.org/cover/10930969/


> 
> Error: arch/arm64/boot/dts/ti/k3-am65-main.dtsi:103.33-34 syntax error
> FATAL ERROR: Unable to parse input tree
>    DTC     arch/arm64/boot/dts/nvidia/tegra210-p2571.dtb
> make[2]: *** [scripts/Makefile.lib:294: arch/arm64/boot/dts/ti/k3-am654-base-board.dtb] Error 1
> make[1]: *** [scripts/Makefile.build:489: arch/arm64/boot/dts/ti] Error 2
> make[1]: *** Waiting for unfinished jobs....
> 
> - Eric
>