linux-kernel - [PATCH v9 0/5] Add Aspeed crypto driver for hardware acceleration

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Date:   Fri, 29 Jul 2022 19:23:08 +0800
From:   Neal Liu <neal_liu@...eedtech.com>
To:     Corentin Labbe <clabbe.montjoie@...il.com>,
        Christophe JAILLET <christophe.jaillet@...adoo.fr>,
        Randy Dunlap <rdunlap@...radead.org>,
        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>,
        Joel Stanley <joel@....id.au>,
        "Andrew Jeffery" <andrew@...id.au>,
        Dhananjay Phadke <dhphadke@...rosoft.com>,
        "Johnny Huang" <johnny_huang@...eedtech.com>
CC:     <linux-aspeed@...ts.ozlabs.org>, <linux-crypto@...r.kernel.org>,
        <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <BMC-SW@...eedtech.com>
Subject: [PATCH v9 0/5] Add Aspeed crypto driver for hardware acceleration

Aspeed Hash and Crypto Engine (HACE) is designed to accelerate the
throughput of hash data digest, encryption and decryption.

These patches aim to add Aspeed hash & crypto driver support.
The hash & crypto driver also pass the run-time self tests that
take place at algorithm registration.

The patch series are tested on both AST2500 & AST2600 evaluation boards.

Tested-by below configs:
- CONFIG_CRYPTO_MANAGER_DISABLE_TESTS is not set
- CONFIG_CRYPTO_MANAGER_EXTRA_TESTS=y
- CONFIG_DMA_API_DEBUG=y
- CONFIG_DMA_API_DEBUG_SG=y
- CONFIG_CPU_BIG_ENDIAN=y

Change since v8:
- Remove __weak functions for register/unregister crypto algos.
- Add missing functions of unregister crypto algos.
- Use single debug config to control debug messages.

Change since v7:
- Define debug Kconfigs.
- Simplify assign iv/ivsize.
- Simplify cra_init() for hmac related init.

Change since v6:
- Refine debug print.
- Change aspeed_sg_list struct memeber's type to __le32.

Change since v5:
- Re-define HACE clock define to fix breaking ABI.

Change since v4:
- Add AST2500 clock definition & dts node.
- Add software fallback for handling corner cases.
- Fix copy wrong key length.

Change since v3:
- Use dmam_alloc_coherent() instead to manage dma_alloc_coherent().
- Add more error handler of dma_prepare() & crypto_engine_start().

Change since v2:
- Fix endianness issue. Tested on both little endian & big endian
  system.
- Use common crypto hardware engine for enqueue & dequeue requests.
- Use pre-defined IVs for SHA-family.
- Revise error handler flow.
- Fix sorts of coding style problems.

Change since v1:
- Add more error handlers, including DMA memory allocate/free, DMA
  map/unmap, clock enable/disable, etc.
- Fix check dma_map error for config DMA_API_DEBUG.
- Fix dt-binding doc & dts node naming.

Neal Liu (5):
  crypto: aspeed: Add HACE hash driver
  dt-bindings: clock: Add AST2500/AST2600 HACE reset definition
  ARM: dts: aspeed: Add HACE device controller node
  dt-bindings: crypto: add documentation for aspeed hace
  crypto: aspeed: add HACE crypto driver

 .../bindings/crypto/aspeed,ast2500-hace.yaml  |   53 +
 MAINTAINERS                                   |    7 +
 arch/arm/boot/dts/aspeed-g5.dtsi              |    8 +
 arch/arm/boot/dts/aspeed-g6.dtsi              |    8 +
 drivers/crypto/Kconfig                        |    1 +
 drivers/crypto/Makefile                       |    1 +
 drivers/crypto/aspeed/Kconfig                 |   49 +
 drivers/crypto/aspeed/Makefile                |    9 +
 drivers/crypto/aspeed/aspeed-hace-crypto.c    | 1135 ++++++++++++++
 drivers/crypto/aspeed/aspeed-hace-hash.c      | 1389 +++++++++++++++++
 drivers/crypto/aspeed/aspeed-hace.c           |  288 ++++
 drivers/crypto/aspeed/aspeed-hace.h           |  298 ++++
 include/dt-bindings/clock/aspeed-clock.h      |    1 +
 include/dt-bindings/clock/ast2600-clock.h     |    1 +
 14 files changed, 3248 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/crypto/aspeed,ast2500-hace.yaml
 create mode 100644 drivers/crypto/aspeed/Kconfig
 create mode 100644 drivers/crypto/aspeed/Makefile
 create mode 100644 drivers/crypto/aspeed/aspeed-hace-crypto.c
 create mode 100644 drivers/crypto/aspeed/aspeed-hace-hash.c
 create mode 100644 drivers/crypto/aspeed/aspeed-hace.c
 create mode 100644 drivers/crypto/aspeed/aspeed-hace.h

-- 
2.25.1