Commit 88574332 authored by Mike Healy's avatar Mike Healy Committed by Herbert Xu
Browse files

crypto: keembay - Add support for Keem Bay OCS AES/SM4 



Add support for the AES/SM4 crypto engine included in the Offload and
Crypto Subsystem (OCS) of the Intel Keem Bay SoC, thus enabling
hardware-acceleration for the following transformations:

- ecb(aes), cbc(aes), ctr(aes), cts(cbc(aes)), gcm(aes) and cbc(aes);
  supported for 128-bit and 256-bit keys.

- ecb(sm4), cbc(sm4), ctr(sm4), cts(cbc(sm4)), gcm(sm4) and cbc(sm4);
  supported for 128-bit keys.

The driver passes crypto manager self-tests, including the extra tests
(CRYPTO_MANAGER_EXTRA_TESTS=y).

Signed-off-by: default avatarMike Healy <mikex.healy@intel.com>
Co-developed-by: default avatarDaniele Alessandrelli <daniele.alessandrelli@intel.com>
Signed-off-by: default avatarDaniele Alessandrelli <daniele.alessandrelli@intel.com>
Acked-by: default avatarMark Gross <mgross@linux.intel.com>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent c7e34aa3

MAINTAINERS

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@@ -8958,6 +8958,16 @@ M: Deepak Saxena <dsaxena@plexity.net> 
S:	Maintained

F:	drivers/char/hw_random/ixp4xx-rng.c









INTEL KEEM BAY OCS AES/SM4 CRYPTO DRIVER









M:	Daniele Alessandrelli <daniele.alessandrelli@intel.com>









S:	Maintained









F:	Documentation/devicetree/bindings/crypto/intel,keembay-ocs-aes.yaml









F:	drivers/crypto/keembay/Kconfig









F:	drivers/crypto/keembay/Makefile









F:	drivers/crypto/keembay/keembay-ocs-aes-core.c









F:	drivers/crypto/keembay/ocs-aes.c









F:	drivers/crypto/keembay/ocs-aes.h

















INTEL MANAGEMENT ENGINE (mei)









M:	Tomas Winkler <tomas.winkler@intel.com>









L:	linux-kernel@vger.kernel.org
































drivers/crypto/Kconfig



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@@ -900,4 +900,6 @@ config CRYPTO_DEV_SA2UL







	  used for crypto offload.  Select this if you want to use hardware









	  acceleration for cryptographic algorithms on these devices.



















source "drivers/crypto/keembay/Kconfig"



















endif # CRYPTO_HW
























drivers/crypto/Makefile



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@@ -51,3 +51,4 @@ obj-$(CONFIG_CRYPTO_DEV_ARTPEC6) += axis/







obj-$(CONFIG_CRYPTO_DEV_ZYNQMP_AES) += xilinx/









obj-y += hisilicon/









obj-$(CONFIG_CRYPTO_DEV_AMLOGIC_GXL) += amlogic/









obj-y += keembay/
























drivers/crypto/keembay/Kconfig
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config CRYPTO_DEV_KEEMBAY_OCS_AES_SM4









	tristate "Support for Intel Keem Bay OCS AES/SM4 HW acceleration"









	depends on OF || COMPILE_TEST









	select CRYPTO_SKCIPHER









	select CRYPTO_AEAD









	select CRYPTO_ENGINE









	help









	  Support for Intel Keem Bay Offload and Crypto Subsystem (OCS) AES and









	  SM4 cihper hardware acceleration for use with Crypto API.



















	  Provides HW acceleration for the following transformations:









	  cbc(aes), ctr(aes), ccm(aes), gcm(aes), cbc(sm4), ctr(sm4), ccm(sm4)









	  and gcm(sm4).



















	  Optionally, support for the following transformations can also be









	  enabled: ecb(aes), cts(cbc(aes)), ecb(sm4) and cts(cbc(sm4)).



















config CRYPTO_DEV_KEEMBAY_OCS_AES_SM4_ECB









	bool "Support for Intel Keem Bay OCS AES/SM4 ECB HW acceleration"









	depends on CRYPTO_DEV_KEEMBAY_OCS_AES_SM4









	help









	  Support for Intel Keem Bay Offload and Crypto Subsystem (OCS)









	  AES/SM4 ECB mode hardware acceleration for use with Crypto API.



















	  Provides OCS version of ecb(aes) and ecb(sm4)



















	  Intel does not recommend use of ECB mode with AES/SM4.



















config CRYPTO_DEV_KEEMBAY_OCS_AES_SM4_CTS









	bool "Support for Intel Keem Bay OCS AES/SM4 CTS HW acceleration"









	depends on CRYPTO_DEV_KEEMBAY_OCS_AES_SM4









	help









	  Support for Intel Keem Bay Offload and Crypto Subsystem (OCS)









	  AES/SM4 CBC with CTS mode hardware acceleration for use with









	  Crypto API.



















	  Provides OCS version of cts(cbc(aes)) and cts(cbc(sm4)).



















	  Intel does not recommend use of CTS mode with AES/SM4.
























drivers/crypto/keembay/Makefile
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#









# Makefile for Intel Keem Bay OCS Crypto API Linux drivers









#









obj-$(CONFIG_CRYPTO_DEV_KEEMBAY_OCS_AES_SM4) += keembay-ocs-aes.o









keembay-ocs-aes-objs := keembay-ocs-aes-core.o ocs-aes.o