linux-kernel - [PATCH v2 0/6] Add support for Texas Instruments MCRC64 engine

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Date:   Fri, 11 Aug 2023 00:58:47 +0530
From:   Kamlesh Gurudasani <kamlesh@...com>
To:     Herbert Xu <herbert@...dor.apana.org.au>,
        "David S. Miller" <davem@...emloft.net>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>, Nishanth Menon <nm@...com>,
        Vignesh Raghavendra <vigneshr@...com>,
        Tero Kristo <kristo@...nel.org>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Alexandre Torgue <alexandre.torgue@...s.st.com>
CC:     <linux-crypto@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-stm32@...md-mailman.stormreply.com>,
        Kamlesh Gurudasani <kamlesh@...com>
Subject: [PATCH v2 0/6] Add support for Texas Instruments MCRC64 engine

Add support for MCRC64 engine to calculate 64-bit CRC in Full-CPU mode

MCRC64 engine calculates 64-bit cyclic redundancy checks (CRC)
according to the ISO 3309 standard.

The ISO 3309 64-bit CRC model parameters are as follows:
    Generator Polynomial: x^64 + x^4 + x^3 + x + 1
    Polynomial Value: 0x000000000000001B
    Initial value: 0x0000000000000000
    Reflected Input: False
    Reflected Output: False
    Xor Final: 0x0000000000000000

Tested with
CONFIG_CRYPTO_MANAGER_DISABLE_TESTS is not set
CONFIG_CRYPTO_MANAGER_EXTRA_TESTS=y

and tcrypt,
sudo modprobe tcrypt mode=329 sec=1

User space application implemented using algif_hash,
https://gist.github.com/ti-kamlesh/73abfcc1a33318bb3b199d36b6209e59

Signed-off-by: Kamlesh Gurudasani <kamlesh@...com>
---
Changes in v2:
- Add generic implementation of crc64-iso
- Fixes according to review comments
- Link to v1: https://lore.kernel.org/r/20230719-mcrc-upstream-v1-0-dc8798a24c47@ti.com

---
Kamlesh Gurudasani (6):
      lib: add ISO 3309 model crc64
      crypto: crc64 - add crc64-iso framework
      dt-bindings: crypto: Add Texas Instruments MCRC64
      crypto: ti - add driver for MCRC64 engine
      arm64: dts: ti: k3-am62: Add dt node, cbass_main ranges for MCRC64
      arm64: defconfig: enable TI MCRC64 module

 Documentation/devicetree/bindings/crypto/ti,mcrc64.yaml |  47 ++++++++
 MAINTAINERS                                             |   7 ++
 arch/arm64/boot/dts/ti/k3-am62-main.dtsi                |   7 ++
 arch/arm64/boot/dts/ti/k3-am62.dtsi                     |   1 +
 arch/arm64/configs/defconfig                            |   2 +
 crypto/Kconfig                                          |  11 ++
 crypto/Makefile                                         |   1 +
 crypto/crc64_iso_generic.c                              | 119 ++++++++++++++++++
 crypto/tcrypt.c                                         |   5 +
 crypto/testmgr.c                                        |   7 ++
 crypto/testmgr.h                                        | 404 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 drivers/crypto/Kconfig                                  |   1 +
 drivers/crypto/Makefile                                 |   1 +
 drivers/crypto/ti/Kconfig                               |  10 ++
 drivers/crypto/ti/Makefile                              |   2 +
 drivers/crypto/ti/mcrc64.c                              | 442 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 include/linux/crc64.h                                   |   5 +
 lib/crc64-iso.c                                         | 126 +++++++++++++++++++
 lib/crc64.c                                             |  27 +++++
 lib/gen_crc64table.c                                    |   6 +
 20 files changed, 1231 insertions(+)
---
base-commit: 21ef7b1e17d039053edaeaf41142423810572741
change-id: 20230719-mcrc-upstream-7ae9a75cab37

Best regards,
-- 
Kamlesh Gurudasani <kamlesh@...com>