xref: /openbmc/linux/drivers/crypto/Kconfig (revision 14474950)

# SPDX-License-Identifier: GPL-2.0-only

menuconfig CRYPTO_HW
	bool "Hardware crypto devices"
	default y
	help
	  Say Y here to get to see options for hardware crypto devices and
	  processors. This option alone does not add any kernel code.

	  If you say N, all options in this submenu will be skipped and disabled.

if CRYPTO_HW

source "drivers/crypto/allwinner/Kconfig"

config CRYPTO_DEV_PADLOCK
	tristate "Support for VIA PadLock ACE"
	depends on X86 && !UML
	help
	  Some VIA processors come with an integrated crypto engine
	  (so called VIA PadLock ACE, Advanced Cryptography Engine)
	  that provides instructions for very fast cryptographic
	  operations with supported algorithms.

	  The instructions are used only when the CPU supports them.
	  Otherwise software encryption is used.

config CRYPTO_DEV_PADLOCK_AES
	tristate "PadLock driver for AES algorithm"
	depends on CRYPTO_DEV_PADLOCK
	select CRYPTO_SKCIPHER
	select CRYPTO_LIB_AES
	help
	  Use VIA PadLock for AES algorithm.

	  Available in VIA C3 and newer CPUs.

	  If unsure say M. The compiled module will be
	  called padlock-aes.

config CRYPTO_DEV_PADLOCK_SHA
	tristate "PadLock driver for SHA1 and SHA256 algorithms"
	depends on CRYPTO_DEV_PADLOCK
	select CRYPTO_HASH
	select CRYPTO_SHA1
	select CRYPTO_SHA256
	help
	  Use VIA PadLock for SHA1/SHA256 algorithms.

	  Available in VIA C7 and newer processors.

	  If unsure say M. The compiled module will be
	  called padlock-sha.

config CRYPTO_DEV_GEODE
	tristate "Support for the Geode LX AES engine"
	depends on X86_32 && PCI
	select CRYPTO_ALGAPI
	select CRYPTO_SKCIPHER
	help
	  Say 'Y' here to use the AMD Geode LX processor on-board AES
	  engine for the CryptoAPI AES algorithm.

	  To compile this driver as a module, choose M here: the module
	  will be called geode-aes.

config ZCRYPT
	tristate "Support for s390 cryptographic adapters"
	depends on S390
	select HW_RANDOM
	help
	  Select this option if you want to enable support for
	  s390 cryptographic adapters like:
	  + PCI-X Cryptographic Coprocessor (PCIXCC)
	  + Crypto Express 2,3,4 or 5 Coprocessor (CEXxC)
	  + Crypto Express 2,3,4 or 5 Accelerator (CEXxA)
	  + Crypto Express 4 or 5 EP11 Coprocessor (CEXxP)

config ZCRYPT_MULTIDEVNODES
	bool "Support for multiple zcrypt device nodes"
	default y
	depends on S390
	depends on ZCRYPT
	help
	  With this option enabled the zcrypt device driver can
	  provide multiple devices nodes in /dev. Each device
	  node can get customized to limit access and narrow
	  down the use of the available crypto hardware.

config PKEY
	tristate "Kernel API for protected key handling"
	depends on S390
	depends on ZCRYPT
	help
	  With this option enabled the pkey kernel module provides an API
	  for creation and handling of protected keys. Other parts of the
	  kernel or userspace applications may use these functions.

	  Select this option if you want to enable the kernel and userspace
	  API for proteced key handling.

	  Please note that creation of protected keys from secure keys
	  requires to have at least one CEX card in coprocessor mode
	  available at runtime.

config CRYPTO_PAES_S390
	tristate "PAES cipher algorithms"
	depends on S390
	depends on ZCRYPT
	depends on PKEY
	select CRYPTO_ALGAPI
	select CRYPTO_SKCIPHER
	help
	  This is the s390 hardware accelerated implementation of the
	  AES cipher algorithms for use with protected key.

	  Select this option if you want to use the paes cipher
	  for example to use protected key encrypted devices.

config CRYPTO_SHA1_S390
	tristate "SHA1 digest algorithm"
	depends on S390
	select CRYPTO_HASH
	help
	  This is the s390 hardware accelerated implementation of the
	  SHA-1 secure hash standard (FIPS 180-1/DFIPS 180-2).

	  It is available as of z990.

config CRYPTO_SHA256_S390
	tristate "SHA256 digest algorithm"
	depends on S390
	select CRYPTO_HASH
	help
	  This is the s390 hardware accelerated implementation of the
	  SHA256 secure hash standard (DFIPS 180-2).

	  It is available as of z9.

config CRYPTO_SHA512_S390
	tristate "SHA384 and SHA512 digest algorithm"
	depends on S390
	select CRYPTO_HASH
	help
	  This is the s390 hardware accelerated implementation of the
	  SHA512 secure hash standard.

	  It is available as of z10.

config CRYPTO_SHA3_256_S390
	tristate "SHA3_224 and SHA3_256 digest algorithm"
	depends on S390
	select CRYPTO_HASH
	help
	  This is the s390 hardware accelerated implementation of the
	  SHA3_256 secure hash standard.

	  It is available as of z14.

config CRYPTO_SHA3_512_S390
	tristate "SHA3_384 and SHA3_512 digest algorithm"
	depends on S390
	select CRYPTO_HASH
	help
	  This is the s390 hardware accelerated implementation of the
	  SHA3_512 secure hash standard.

	  It is available as of z14.

config CRYPTO_DES_S390
	tristate "DES and Triple DES cipher algorithms"
	depends on S390
	select CRYPTO_ALGAPI
	select CRYPTO_SKCIPHER
	select CRYPTO_LIB_DES
	help
	  This is the s390 hardware accelerated implementation of the
	  DES cipher algorithm (FIPS 46-2), and Triple DES EDE (FIPS 46-3).

	  As of z990 the ECB and CBC mode are hardware accelerated.
	  As of z196 the CTR mode is hardware accelerated.

config CRYPTO_AES_S390
	tristate "AES cipher algorithms"
	depends on S390
	select CRYPTO_ALGAPI
	select CRYPTO_SKCIPHER
	help
	  This is the s390 hardware accelerated implementation of the
	  AES cipher algorithms (FIPS-197).

	  As of z9 the ECB and CBC modes are hardware accelerated
	  for 128 bit keys.
	  As of z10 the ECB and CBC modes are hardware accelerated
	  for all AES key sizes.
	  As of z196 the CTR mode is hardware accelerated for all AES
	  key sizes and XTS mode is hardware accelerated for 256 and
	  512 bit keys.

config S390_PRNG
	tristate "Pseudo random number generator device driver"
	depends on S390
	default "m"
	help
	  Select this option if you want to use the s390 pseudo random number
	  generator. The PRNG is part of the cryptographic processor functions
	  and uses triple-DES to generate secure random numbers like the
	  ANSI X9.17 standard. User-space programs access the
	  pseudo-random-number device through the char device /dev/prandom.

	  It is available as of z9.

config CRYPTO_GHASH_S390
	tristate "GHASH hash function"
	depends on S390
	select CRYPTO_HASH
	help
	  This is the s390 hardware accelerated implementation of GHASH,
	  the hash function used in GCM (Galois/Counter mode).

	  It is available as of z196.

config CRYPTO_CRC32_S390
	tristate "CRC-32 algorithms"
	depends on S390
	select CRYPTO_HASH
	select CRC32
	help
	  Select this option if you want to use hardware accelerated
	  implementations of CRC algorithms.  With this option, you
	  can optimize the computation of CRC-32 (IEEE 802.3 Ethernet)
	  and CRC-32C (Castagnoli).

	  It is available with IBM z13 or later.

config CRYPTO_DEV_NIAGARA2
	tristate "Niagara2 Stream Processing Unit driver"
	select CRYPTO_LIB_DES
	select CRYPTO_SKCIPHER
	select CRYPTO_HASH
	select CRYPTO_MD5
	select CRYPTO_SHA1
	select CRYPTO_SHA256
	depends on SPARC64
	help
	  Each core of a Niagara2 processor contains a Stream
	  Processing Unit, which itself contains several cryptographic
	  sub-units.  One set provides the Modular Arithmetic Unit,
	  used for SSL offload.  The other set provides the Cipher
	  Group, which can perform encryption, decryption, hashing,
	  checksumming, and raw copies.

config CRYPTO_DEV_HIFN_795X
	tristate "Driver HIFN 795x crypto accelerator chips"
	select CRYPTO_LIB_DES
	select CRYPTO_SKCIPHER
	select HW_RANDOM if CRYPTO_DEV_HIFN_795X_RNG
	depends on PCI
	depends on !ARCH_DMA_ADDR_T_64BIT
	help
	  This option allows you to have support for HIFN 795x crypto adapters.

config CRYPTO_DEV_HIFN_795X_RNG
	bool "HIFN 795x random number generator"
	depends on CRYPTO_DEV_HIFN_795X
	help
	  Select this option if you want to enable the random number generator
	  on the HIFN 795x crypto adapters.

source "drivers/crypto/caam/Kconfig"

config CRYPTO_DEV_TALITOS
	tristate "Talitos Freescale Security Engine (SEC)"
	select CRYPTO_AEAD
	select CRYPTO_AUTHENC
	select CRYPTO_SKCIPHER
	select CRYPTO_HASH
	select CRYPTO_LIB_DES
	select HW_RANDOM
	depends on FSL_SOC
	help
	  Say 'Y' here to use the Freescale Security Engine (SEC)
	  to offload cryptographic algorithm computation.

	  The Freescale SEC is present on PowerQUICC 'E' processors, such
	  as the MPC8349E and MPC8548E.

	  To compile this driver as a module, choose M here: the module
	  will be called talitos.

config CRYPTO_DEV_TALITOS1
	bool "SEC1 (SEC 1.0 and SEC Lite 1.2)"
	depends on CRYPTO_DEV_TALITOS
	depends on PPC_8xx || PPC_82xx
	default y
	help
	  Say 'Y' here to use the Freescale Security Engine (SEC) version 1.0
	  found on MPC82xx or the Freescale Security Engine (SEC Lite)
	  version 1.2 found on MPC8xx

config CRYPTO_DEV_TALITOS2
	bool "SEC2+ (SEC version 2.0 or upper)"
	depends on CRYPTO_DEV_TALITOS
	default y if !PPC_8xx
	help
	  Say 'Y' here to use the Freescale Security Engine (SEC)
	  version 2 and following as found on MPC83xx, MPC85xx, etc ...

config CRYPTO_DEV_IXP4XX
	tristate "Driver for IXP4xx crypto hardware acceleration"
	depends on ARCH_IXP4XX && IXP4XX_QMGR && IXP4XX_NPE
	select CRYPTO_LIB_DES
	select CRYPTO_AEAD
	select CRYPTO_AUTHENC
	select CRYPTO_SKCIPHER
	help
	  Driver for the IXP4xx NPE crypto engine.

config CRYPTO_DEV_PPC4XX
	tristate "Driver AMCC PPC4xx crypto accelerator"
	depends on PPC && 4xx
	select CRYPTO_HASH
	select CRYPTO_AEAD
	select CRYPTO_AES
	select CRYPTO_LIB_AES
	select CRYPTO_CCM
	select CRYPTO_CTR
	select CRYPTO_GCM
	select CRYPTO_SKCIPHER
	help
	  This option allows you to have support for AMCC crypto acceleration.

config HW_RANDOM_PPC4XX
	bool "PowerPC 4xx generic true random number generator support"
	depends on CRYPTO_DEV_PPC4XX && HW_RANDOM
	default y
	help
	 This option provides the kernel-side support for the TRNG hardware
	 found in the security function of some PowerPC 4xx SoCs.

config CRYPTO_DEV_OMAP
	tristate "Support for OMAP crypto HW accelerators"
	depends on ARCH_OMAP2PLUS
	help
	  OMAP processors have various crypto HW accelerators. Select this if
	  you want to use the OMAP modules for any of the crypto algorithms.

if CRYPTO_DEV_OMAP

config CRYPTO_DEV_OMAP_SHAM
	tristate "Support for OMAP MD5/SHA1/SHA2 hw accelerator"
	depends on ARCH_OMAP2PLUS
	select CRYPTO_SHA1
	select CRYPTO_MD5
	select CRYPTO_SHA256
	select CRYPTO_SHA512
	select CRYPTO_HMAC
	help
	  OMAP processors have MD5/SHA1/SHA2 hw accelerator. Select this if you
	  want to use the OMAP module for MD5/SHA1/SHA2 algorithms.

config CRYPTO_DEV_OMAP_AES
	tristate "Support for OMAP AES hw engine"
	depends on ARCH_OMAP2 || ARCH_OMAP3 || ARCH_OMAP2PLUS
	select CRYPTO_AES
	select CRYPTO_SKCIPHER
	select CRYPTO_ENGINE
	select CRYPTO_CBC
	select CRYPTO_ECB
	select CRYPTO_CTR
	select CRYPTO_AEAD
	help
	  OMAP processors have AES module accelerator. Select this if you
	  want to use the OMAP module for AES algorithms.

config CRYPTO_DEV_OMAP_DES
	tristate "Support for OMAP DES/3DES hw engine"
	depends on ARCH_OMAP2PLUS
	select CRYPTO_LIB_DES
	select CRYPTO_SKCIPHER
	select CRYPTO_ENGINE
	help
	  OMAP processors have DES/3DES module accelerator. Select this if you
	  want to use the OMAP module for DES and 3DES algorithms. Currently
	  the ECB and CBC modes of operation are supported by the driver. Also
	  accesses made on unaligned boundaries are supported.

endif # CRYPTO_DEV_OMAP

config CRYPTO_DEV_PICOXCELL
	tristate "Support for picoXcell IPSEC and Layer2 crypto engines"
	depends on (ARCH_PICOXCELL || COMPILE_TEST) && HAVE_CLK
	select CRYPTO_AEAD
	select CRYPTO_AES
	select CRYPTO_AUTHENC
	select CRYPTO_SKCIPHER
	select CRYPTO_LIB_DES
	select CRYPTO_CBC
	select CRYPTO_ECB
	select CRYPTO_SEQIV
	help
	  This option enables support for the hardware offload engines in the
	  Picochip picoXcell SoC devices. Select this for IPSEC ESP offload
	  and for 3gpp Layer 2 ciphering support.

	  Saying m here will build a module named picoxcell_crypto.

config CRYPTO_DEV_SAHARA
	tristate "Support for SAHARA crypto accelerator"
	depends on ARCH_MXC && OF
	select CRYPTO_SKCIPHER
	select CRYPTO_AES
	select CRYPTO_ECB
	help
	  This option enables support for the SAHARA HW crypto accelerator
	  found in some Freescale i.MX chips.

config CRYPTO_DEV_EXYNOS_RNG
	tristate "Exynos HW pseudo random number generator support"
	depends on ARCH_EXYNOS || COMPILE_TEST
	depends on HAS_IOMEM
	select CRYPTO_RNG
	help
	  This driver provides kernel-side support through the
	  cryptographic API for the pseudo random number generator hardware
	  found on Exynos SoCs.

	  To compile this driver as a module, choose M here: the
	  module will be called exynos-rng.

	  If unsure, say Y.

config CRYPTO_DEV_S5P
	tristate "Support for Samsung S5PV210/Exynos crypto accelerator"
	depends on ARCH_S5PV210 || ARCH_EXYNOS || COMPILE_TEST
	depends on HAS_IOMEM
	select CRYPTO_AES
	select CRYPTO_SKCIPHER
	help
	  This option allows you to have support for S5P crypto acceleration.
	  Select this to offload Samsung S5PV210 or S5PC110, Exynos from AES
	  algorithms execution.

config CRYPTO_DEV_EXYNOS_HASH
	bool "Support for Samsung Exynos HASH accelerator"
	depends on CRYPTO_DEV_S5P
	depends on !CRYPTO_DEV_EXYNOS_RNG && CRYPTO_DEV_EXYNOS_RNG!=m
	select CRYPTO_SHA1
	select CRYPTO_MD5
	select CRYPTO_SHA256
	help
	  Select this to offload Exynos from HASH MD5/SHA1/SHA256.
	  This will select software SHA1, MD5 and SHA256 as they are
	  needed for small and zero-size messages.
	  HASH algorithms will be disabled if EXYNOS_RNG
	  is enabled due to hw conflict.

config CRYPTO_DEV_NX
	bool "Support for IBM PowerPC Nest (NX) cryptographic acceleration"
	depends on PPC64
	help
	  This enables support for the NX hardware cryptographic accelerator
	  coprocessor that is in IBM PowerPC P7+ or later processors.  This
	  does not actually enable any drivers, it only allows you to select
	  which acceleration type (encryption and/or compression) to enable.

if CRYPTO_DEV_NX
	source "drivers/crypto/nx/Kconfig"
endif

config CRYPTO_DEV_UX500
	tristate "Driver for ST-Ericsson UX500 crypto hardware acceleration"
	depends on ARCH_U8500
	help
	  Driver for ST-Ericsson UX500 crypto engine.

if CRYPTO_DEV_UX500
	source "drivers/crypto/ux500/Kconfig"
endif # if CRYPTO_DEV_UX500

config CRYPTO_DEV_ATMEL_AUTHENC
	bool "Support for Atmel IPSEC/SSL hw accelerator"
	depends on ARCH_AT91 || COMPILE_TEST
	depends on CRYPTO_DEV_ATMEL_AES
	help
	  Some Atmel processors can combine the AES and SHA hw accelerators
	  to enhance support of IPSEC/SSL.
	  Select this if you want to use the Atmel modules for
	  authenc(hmac(shaX),Y(cbc)) algorithms.

config CRYPTO_DEV_ATMEL_AES
	tristate "Support for Atmel AES hw accelerator"
	depends on ARCH_AT91 || COMPILE_TEST
	select CRYPTO_AES
	select CRYPTO_AEAD
	select CRYPTO_SKCIPHER
	select CRYPTO_AUTHENC if CRYPTO_DEV_ATMEL_AUTHENC
	select CRYPTO_DEV_ATMEL_SHA if CRYPTO_DEV_ATMEL_AUTHENC
	help
	  Some Atmel processors have AES hw accelerator.
	  Select this if you want to use the Atmel module for
	  AES algorithms.

	  To compile this driver as a module, choose M here: the module
	  will be called atmel-aes.

config CRYPTO_DEV_ATMEL_TDES
	tristate "Support for Atmel DES/TDES hw accelerator"
	depends on ARCH_AT91 || COMPILE_TEST
	select CRYPTO_LIB_DES
	select CRYPTO_SKCIPHER
	help
	  Some Atmel processors have DES/TDES hw accelerator.
	  Select this if you want to use the Atmel module for
	  DES/TDES algorithms.

	  To compile this driver as a module, choose M here: the module
	  will be called atmel-tdes.

config CRYPTO_DEV_ATMEL_SHA
	tristate "Support for Atmel SHA hw accelerator"
	depends on ARCH_AT91 || COMPILE_TEST
	select CRYPTO_HASH
	help
	  Some Atmel processors have SHA1/SHA224/SHA256/SHA384/SHA512
	  hw accelerator.
	  Select this if you want to use the Atmel module for
	  SHA1/SHA224/SHA256/SHA384/SHA512 algorithms.

	  To compile this driver as a module, choose M here: the module
	  will be called atmel-sha.

config CRYPTO_DEV_ATMEL_I2C
	tristate

config CRYPTO_DEV_ATMEL_ECC
	tristate "Support for Microchip / Atmel ECC hw accelerator"
	depends on I2C
	select CRYPTO_DEV_ATMEL_I2C
	select CRYPTO_ECDH
	select CRC16
	help
	  Microhip / Atmel ECC hw accelerator.
	  Select this if you want to use the Microchip / Atmel module for
	  ECDH algorithm.

	  To compile this driver as a module, choose M here: the module
	  will be called atmel-ecc.

config CRYPTO_DEV_ATMEL_SHA204A
	tristate "Support for Microchip / Atmel SHA accelerator and RNG"
	depends on I2C
	select CRYPTO_DEV_ATMEL_I2C
	select HW_RANDOM
	select CRC16
	help
	  Microhip / Atmel SHA accelerator and RNG.
	  Select this if you want to use the Microchip / Atmel SHA204A
	  module as a random number generator. (Other functions of the
	  chip are currently not exposed by this driver)

	  To compile this driver as a module, choose M here: the module
	  will be called atmel-sha204a.

config CRYPTO_DEV_CCP
	bool "Support for AMD Secure Processor"
	depends on ((X86 && PCI) || (ARM64 && (OF_ADDRESS || ACPI))) && HAS_IOMEM
	help
	  The AMD Secure Processor provides support for the Cryptographic Coprocessor
	  (CCP) and the Platform Security Processor (PSP) devices.

if CRYPTO_DEV_CCP
	source "drivers/crypto/ccp/Kconfig"
endif

config CRYPTO_DEV_MXS_DCP
	tristate "Support for Freescale MXS DCP"
	depends on (ARCH_MXS || ARCH_MXC)
	select STMP_DEVICE
	select CRYPTO_CBC
	select CRYPTO_ECB
	select CRYPTO_AES
	select CRYPTO_SKCIPHER
	select CRYPTO_HASH
	help
	  The Freescale i.MX23/i.MX28 has SHA1/SHA256 and AES128 CBC/ECB
	  co-processor on the die.

	  To compile this driver as a module, choose M here: the module
	  will be called mxs-dcp.

source "drivers/crypto/qat/Kconfig"
source "drivers/crypto/cavium/cpt/Kconfig"
source "drivers/crypto/cavium/nitrox/Kconfig"
source "drivers/crypto/marvell/Kconfig"

config CRYPTO_DEV_CAVIUM_ZIP
	tristate "Cavium ZIP driver"
	depends on PCI && 64BIT && (ARM64 || COMPILE_TEST)
	help
	  Select this option if you want to enable compression/decompression
	  acceleration on Cavium's ARM based SoCs

config CRYPTO_DEV_QCE
	tristate "Qualcomm crypto engine accelerator"
	depends on ARCH_QCOM || COMPILE_TEST
	depends on HAS_IOMEM
	help
	  This driver supports Qualcomm crypto engine accelerator
	  hardware. To compile this driver as a module, choose M here. The
	  module will be called qcrypto.

config CRYPTO_DEV_QCE_SKCIPHER
	bool
	depends on CRYPTO_DEV_QCE
	select CRYPTO_AES
	select CRYPTO_LIB_DES
	select CRYPTO_ECB
	select CRYPTO_CBC
	select CRYPTO_XTS
	select CRYPTO_CTR
	select CRYPTO_SKCIPHER

config CRYPTO_DEV_QCE_SHA
	bool
	depends on CRYPTO_DEV_QCE

choice
	prompt "Algorithms enabled for QCE acceleration"
	default CRYPTO_DEV_QCE_ENABLE_ALL
	depends on CRYPTO_DEV_QCE
	help
	  This option allows to choose whether to build support for all algorihtms
	  (default), hashes-only, or skciphers-only.

	  The QCE engine does not appear to scale as well as the CPU to handle
	  multiple crypto requests.  While the ipq40xx chips have 4-core CPUs, the
	  QCE handles only 2 requests in parallel.

	  Ipsec throughput seems to improve when disabling either family of
	  algorithms, sharing the load with the CPU.  Enabling skciphers-only
	  appears to work best.

	config CRYPTO_DEV_QCE_ENABLE_ALL
		bool "All supported algorithms"
		select CRYPTO_DEV_QCE_SKCIPHER
		select CRYPTO_DEV_QCE_SHA
		help
		  Enable all supported algorithms:
			- AES (CBC, CTR, ECB, XTS)
			- 3DES (CBC, ECB)
			- DES (CBC, ECB)
			- SHA1, HMAC-SHA1
			- SHA256, HMAC-SHA256

	config CRYPTO_DEV_QCE_ENABLE_SKCIPHER
		bool "Symmetric-key ciphers only"
		select CRYPTO_DEV_QCE_SKCIPHER
		help
		  Enable symmetric-key ciphers only:
			- AES (CBC, CTR, ECB, XTS)
			- 3DES (ECB, CBC)
			- DES (ECB, CBC)

	config CRYPTO_DEV_QCE_ENABLE_SHA
		bool "Hash/HMAC only"
		select CRYPTO_DEV_QCE_SHA
		help
		  Enable hashes/HMAC algorithms only:
			- SHA1, HMAC-SHA1
			- SHA256, HMAC-SHA256

endchoice

config CRYPTO_DEV_QCE_SW_MAX_LEN
	int "Default maximum request size to use software for AES"
	depends on CRYPTO_DEV_QCE && CRYPTO_DEV_QCE_SKCIPHER
	default 512
	help
	  This sets the default maximum request size to perform AES requests
	  using software instead of the crypto engine.  It can be changed by
	  setting the aes_sw_max_len parameter.

	  Small blocks are processed faster in software than hardware.
	  Considering the 256-bit ciphers, software is 2-3 times faster than
	  qce at 256-bytes, 30% faster at 512, and about even at 768-bytes.
	  With 128-bit keys, the break-even point would be around 1024-bytes.

	  The default is set a little lower, to 512 bytes, to balance the
	  cost in CPU usage.  The minimum recommended setting is 16-bytes
	  (1 AES block), since AES-GCM will fail if you set it lower.
	  Setting this to zero will send all requests to the hardware.

	  Note that 192-bit keys are not supported by the hardware and are
	  always processed by the software fallback, and all DES requests
	  are done by the hardware.

config CRYPTO_DEV_QCOM_RNG
	tristate "Qualcomm Random Number Generator Driver"
	depends on ARCH_QCOM || COMPILE_TEST
	select CRYPTO_RNG
	help
	  This driver provides support for the Random Number
	  Generator hardware found on Qualcomm SoCs.

	  To compile this driver as a module, choose M here. The
	  module will be called qcom-rng. If unsure, say N.

config CRYPTO_DEV_VMX
	bool "Support for VMX cryptographic acceleration instructions"
	depends on PPC64 && VSX
	help
	  Support for VMX cryptographic acceleration instructions.

source "drivers/crypto/vmx/Kconfig"

config CRYPTO_DEV_IMGTEC_HASH
	tristate "Imagination Technologies hardware hash accelerator"
	depends on MIPS || COMPILE_TEST
	select CRYPTO_MD5
	select CRYPTO_SHA1
	select CRYPTO_SHA256
	select CRYPTO_HASH
	help
	  This driver interfaces with the Imagination Technologies
	  hardware hash accelerator. Supporting MD5/SHA1/SHA224/SHA256
	  hashing algorithms.

config CRYPTO_DEV_ROCKCHIP
	tristate "Rockchip's Cryptographic Engine driver"
	depends on OF && ARCH_ROCKCHIP
	select CRYPTO_AES
	select CRYPTO_LIB_DES
	select CRYPTO_MD5
	select CRYPTO_SHA1
	select CRYPTO_SHA256
	select CRYPTO_HASH
	select CRYPTO_SKCIPHER

	help
	  This driver interfaces with the hardware crypto accelerator.
	  Supporting cbc/ecb chainmode, and aes/des/des3_ede cipher mode.

config CRYPTO_DEV_ZYNQMP_AES
	tristate "Support for Xilinx ZynqMP AES hw accelerator"
	depends on ZYNQMP_FIRMWARE || COMPILE_TEST
	select CRYPTO_AES
	select CRYPTO_ENGINE
	select CRYPTO_AEAD
	help
	  Xilinx ZynqMP has AES-GCM engine used for symmetric key
	  encryption and decryption. This driver interfaces with AES hw
	  accelerator. Select this if you want to use the ZynqMP module
	  for AES algorithms.

config CRYPTO_DEV_MEDIATEK
	tristate "MediaTek's EIP97 Cryptographic Engine driver"
	depends on (ARM && ARCH_MEDIATEK) || COMPILE_TEST
	select CRYPTO_AES
	select CRYPTO_AEAD
	select CRYPTO_SKCIPHER
	select CRYPTO_CTR
	select CRYPTO_SHA1
	select CRYPTO_SHA256
	select CRYPTO_SHA512
	select CRYPTO_HMAC
	help
	  This driver allows you to utilize the hardware crypto accelerator
	  EIP97 which can be found on the MT7623 MT2701, MT8521p, etc ....
	  Select this if you want to use it for AES/SHA1/SHA2 algorithms.

source "drivers/crypto/chelsio/Kconfig"

source "drivers/crypto/virtio/Kconfig"

config CRYPTO_DEV_BCM_SPU
	tristate "Broadcom symmetric crypto/hash acceleration support"
	depends on ARCH_BCM_IPROC
	depends on MAILBOX
	default m
	select CRYPTO_AUTHENC
	select CRYPTO_LIB_DES
	select CRYPTO_MD5
	select CRYPTO_SHA1
	select CRYPTO_SHA256
	select CRYPTO_SHA512
	help
	  This driver provides support for Broadcom crypto acceleration using the
	  Secure Processing Unit (SPU). The SPU driver registers skcipher,
	  ahash, and aead algorithms with the kernel cryptographic API.

source "drivers/crypto/stm32/Kconfig"

config CRYPTO_DEV_SAFEXCEL
	tristate "Inside Secure's SafeXcel cryptographic engine driver"
	depends on (OF || PCI || COMPILE_TEST) && HAS_IOMEM
	select CRYPTO_LIB_AES
	select CRYPTO_AUTHENC
	select CRYPTO_SKCIPHER
	select CRYPTO_LIB_DES
	select CRYPTO_HASH
	select CRYPTO_HMAC
	select CRYPTO_MD5
	select CRYPTO_SHA1
	select CRYPTO_SHA256
	select CRYPTO_SHA512
	select CRYPTO_CHACHA20POLY1305
	select CRYPTO_SHA3
	help
	  This driver interfaces with the SafeXcel EIP-97 and EIP-197 cryptographic
	  engines designed by Inside Secure. It currently accelerates DES, 3DES and
	  AES block ciphers in ECB and CBC mode, as well as SHA1, SHA224, SHA256,
	  SHA384 and SHA512 hash algorithms for both basic hash and HMAC.
	  Additionally, it accelerates combined AES-CBC/HMAC-SHA AEAD operations.

config CRYPTO_DEV_ARTPEC6
	tristate "Support for Axis ARTPEC-6/7 hardware crypto acceleration."
	depends on ARM && (ARCH_ARTPEC || COMPILE_TEST)
	depends on OF
	select CRYPTO_AEAD
	select CRYPTO_AES
	select CRYPTO_ALGAPI
	select CRYPTO_SKCIPHER
	select CRYPTO_CTR
	select CRYPTO_HASH
	select CRYPTO_SHA1
	select CRYPTO_SHA256
	select CRYPTO_SHA512
	help
	  Enables the driver for the on-chip crypto accelerator
	  of Axis ARTPEC SoCs.

	  To compile this driver as a module, choose M here.

config CRYPTO_DEV_CCREE
	tristate "Support for ARM TrustZone CryptoCell family of security processors"
	depends on CRYPTO && CRYPTO_HW && OF && HAS_DMA
	default n
	select CRYPTO_HASH
	select CRYPTO_SKCIPHER
	select CRYPTO_LIB_DES
	select CRYPTO_AEAD
	select CRYPTO_AUTHENC
	select CRYPTO_SHA1
	select CRYPTO_MD5
	select CRYPTO_SHA256
	select CRYPTO_SHA512
	select CRYPTO_HMAC
	select CRYPTO_AES
	select CRYPTO_CBC
	select CRYPTO_ECB
	select CRYPTO_CTR
	select CRYPTO_XTS
	select CRYPTO_SM4
	select CRYPTO_SM3
	help
	  Say 'Y' to enable a driver for the REE interface of the Arm
	  TrustZone CryptoCell family of processors. Currently the
	  CryptoCell 713, 703, 712, 710 and 630 are supported.
	  Choose this if you wish to use hardware acceleration of
	  cryptographic operations on the system REE.
	  If unsure say Y.

source "drivers/crypto/hisilicon/Kconfig"

source "drivers/crypto/amlogic/Kconfig"

endif # CRYPTO_HW