diff options
Diffstat (limited to 'drivers/crypto/Kconfig')
| -rw-r--r-- | drivers/crypto/Kconfig | 63 |
1 files changed, 59 insertions, 4 deletions
diff --git a/drivers/crypto/Kconfig b/drivers/crypto/Kconfig index 30eb2be6b7bf..d42ee84762be 100644 --- a/drivers/crypto/Kconfig +++ b/drivers/crypto/Kconfig @@ -618,6 +618,14 @@ 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 @@ -625,10 +633,57 @@ config CRYPTO_DEV_QCE select CRYPTO_XTS select CRYPTO_CTR select CRYPTO_SKCIPHER - 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_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_QCOM_RNG tristate "Qualcomm Random Number Generator Driver" |