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Diffstat (limited to 'drivers/crypto/caam/Kconfig')
| -rw-r--r-- | drivers/crypto/caam/Kconfig | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/drivers/crypto/caam/Kconfig b/drivers/crypto/caam/Kconfig new file mode 100644 index 00000000..3d66041c --- /dev/null +++ b/drivers/crypto/caam/Kconfig @@ -0,0 +1,150 @@ +config CRYPTO_DEV_FSL_CAAM + tristate "Freescale CAAM-Multicore driver backend" + depends on FSL_SOC || ARCH_MXC + help + Enables the driver module for Freescale's Cryptographic Accelerator + and Assurance Module (CAAM), also known as the SEC version 4 (SEC4). + This module adds a job ring operation interface, and configures h/w + to operate as a DPAA component automatically, depending + on h/w feature availability. + + To compile this driver as a module, choose M here: the module + will be called caam. + +config CRYPTO_DEV_FSL_CAAM_RINGSIZE + int "Job Ring size" + depends on CRYPTO_DEV_FSL_CAAM + range 2 9 + default "9" + help + Select size of Job Rings as a power of 2, within the + range 2-9 (ring size 4-512). + Examples: + 2 => 4 + 3 => 8 + 4 => 16 + 5 => 32 + 6 => 64 + 7 => 128 + 8 => 256 + 9 => 512 + +config CRYPTO_DEV_FSL_CAAM_INTC + bool "Job Ring interrupt coalescing" + depends on CRYPTO_DEV_FSL_CAAM + default y + help + Enable the Job Ring's interrupt coalescing feature. + +config CRYPTO_DEV_FSL_CAAM_INTC_COUNT_THLD + int "Job Ring interrupt coalescing count threshold" + depends on CRYPTO_DEV_FSL_CAAM_INTC + range 1 255 + default 255 + help + Select number of descriptor completions to queue before + raising an interrupt, in the range 1-255. Note that a selection + of 1 functionally defeats the coalescing feature, and a selection + equal or greater than the job ring size will force timeouts. + +config CRYPTO_DEV_FSL_CAAM_INTC_TIME_THLD + int "Job Ring interrupt coalescing timer threshold" + depends on CRYPTO_DEV_FSL_CAAM_INTC + range 1 65535 + default 2048 + help + Select number of bus clocks/64 to timeout in the case that one or + more descriptor completions are queued without reaching the count + threshold. Range is 1-65535. + +config CRYPTO_DEV_FSL_CAAM_CRYPTO_API +# Forced to non-module for current ARM branch, until CONFIG_OF possible +# tristate "Register algorithm implementations with the Crypto API" + boolean "Register algorithm implementations with the Crypto API" + depends on CRYPTO_DEV_FSL_CAAM + default y + select CRYPTO_ALGAPI + select CRYPTO_AUTHENC + help + Selecting this will offload crypto for users of the + scatterlist crypto API (such as the linux native IPSec + stack) to the SEC4 via job ring. + + To compile this as a module, choose M here: the module + will be called caamalg. + +config CRYPTO_DEV_FSL_CAAM_AHASH_API +# Forced to non-module for current ARM branch, until CONFIG_OF possible +# tristate "Register hash algorithm implementations with Crypto API" + boolean "Register hash algorithm implementations with Crypto API" + depends on CRYPTO_DEV_FSL_CAAM + default y + select CRYPTO_AHASH + help + Selecting this will offload ahash for users of the + scatterlist crypto API to the SEC4 via job ring. + + To compile this as a module, choose M here: the module + will be called caamhash. + +config CRYPTO_DEV_FSL_CAAM_RNG_API +# Forced to non-module for current ARM branch, until CONFIG_OF possible +# tristate "Register caam device for hwrng API" + boolean "Register caam device for hwrng API" + depends on CRYPTO_DEV_FSL_CAAM + default y + select CRYPTO_RNG + help + Selecting this will register the SEC4 hardware rng to + the hw_random API for suppying the kernel entropy pool. + + To compile this as a module, choose M here: the module + will be called caamrng. + +config CRYPTO_DEV_FSL_CAAM_RNG_TEST + boolean "Test caam rng" + depends on CRYPTO_DEV_FSL_CAAM_RNG_API + default n + help + Selecting this will enable self-test for caam rng. + +config CRYPTO_DEV_FSL_CAAM_SM + boolean "CAAM Secure Memory / Keystore API (EXPERIMENTAL)" + default n + help + Enables use of a prototype kernel-level Keystore API with CAAM + Secure Memory for insertion/extraction of bus-protected secrets. + +config CRYPTO_DEV_FSL_CAAM_SM_SLOTSIZE + int "Size of each keystore slot in Secure Memory" + depends on CRYPTO_DEV_FSL_CAAM_SM + range 5 9 + default 7 + help + Select size of allocation units to divide Secure Memory pages into + (the size of a "slot" as referenced inside the API code). + Established as powers of two. + Examples: + 5 => 32 bytes + 6 => 64 bytes + 7 => 128 bytes + 8 => 256 bytes + 9 => 512 bytes + +config CRYPTO_DEV_FSL_CAAM_SM_TEST + boolean "CAAM Secure Memory - Keystore Test/Example (EXPERIMENTAL)" + depends on CRYPTO_DEV_FSL_CAAM_SM + default n + help + Example thread to exercise the Keystore API and to verify that + stored and recovered secrets can be used for general purpose + encryption/decryption. + +config CRYPTO_DEV_FSL_CAAM_SECVIO + boolean "CAAM/SNVS Security Violation Handler (EXPERIMENTAL)" + depends on CRYPTO_DEV_FSL_CAAM + default n + help + Enables installation of an interrupt handler with registrable + handler functions which can be specified to act on the consequences + of a security violation. |