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Diffstat (limited to 'drivers/crypto/caam/Kconfig')
| -rw-r--r-- | drivers/crypto/caam/Kconfig | 154 |
1 files changed, 154 insertions, 0 deletions
diff --git a/drivers/crypto/caam/Kconfig b/drivers/crypto/caam/Kconfig new file mode 100644 index 000000000..1eb852765 --- /dev/null +++ b/drivers/crypto/caam/Kconfig @@ -0,0 +1,154 @@ +config CRYPTO_DEV_FSL_CAAM + tristate "Freescale CAAM-Multicore driver backend" + depends on FSL_SOC || ARCH_MXC || ARCH_LAYERSCAPE + select SOC_BUS + help + Enables the driver module for Freescale's Cryptographic Accelerator + and Assurance Module (CAAM), also known as the SEC version 4 (SEC4). + This module creates job ring devices, 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_JR + tristate "Freescale CAAM Job Ring driver backend" + depends on CRYPTO_DEV_FSL_CAAM + default y + help + Enables the driver module for Job Rings which are part of + Freescale's Cryptographic Accelerator + and Assurance Module (CAAM). This module adds a job ring operation + interface. + + To compile this driver as a module, choose M here: the module + will be called caam_jr. + +config CRYPTO_DEV_FSL_CAAM_RINGSIZE + int "Job Ring size" + depends on CRYPTO_DEV_FSL_CAAM_JR + 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_JR + help + Enable the Job Ring's interrupt coalescing feature. + + Note: the driver already provides adequate + interrupt coalescing in software. + +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 + tristate "Register algorithm implementations with the Crypto API" + depends on CRYPTO_DEV_FSL_CAAM_JR + default y + select CRYPTO_AEAD + select CRYPTO_AUTHENC + select CRYPTO_BLKCIPHER + 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_CRYPTO_API_QI + tristate "Queue Interface as Crypto API backend" + depends on CRYPTO_DEV_FSL_CAAM_JR && FSL_DPAA && NET + default y + select CRYPTO_AUTHENC + select CRYPTO_BLKCIPHER + help + Selecting this will use CAAM Queue Interface (QI) for sending + & receiving crypto jobs to/from CAAM. This gives better performance + than job ring interface when the number of cores are more than the + number of job rings assigned to the kernel. The number of portals + assigned to the kernel should also be more than the number of + job rings. + + To compile this as a module, choose M here: the module + will be called caamalg_qi. + +config CRYPTO_DEV_FSL_CAAM_AHASH_API + tristate "Register hash algorithm implementations with Crypto API" + depends on CRYPTO_DEV_FSL_CAAM_JR + default y + select CRYPTO_HASH + 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_PKC_API + tristate "Register public key cryptography implementations with Crypto API" + depends on CRYPTO_DEV_FSL_CAAM_JR + default y + select CRYPTO_RSA + help + Selecting this will allow SEC Public key support for RSA. + Supported cryptographic primitives: encryption, decryption, + signature and verification. + To compile this as a module, choose M here: the module + will be called caam_pkc. + +config CRYPTO_DEV_FSL_CAAM_RNG_API + tristate "Register caam device for hwrng API" + depends on CRYPTO_DEV_FSL_CAAM_JR + default y + select CRYPTO_RNG + select HW_RANDOM + 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_DEBUG + bool "Enable debug output in CAAM driver" + depends on CRYPTO_DEV_FSL_CAAM + help + Selecting this will enable printing of various debug + information in the CAAM driver. + +config CRYPTO_DEV_FSL_CAAM_CRYPTO_API_DESC + def_tristate (CRYPTO_DEV_FSL_CAAM_CRYPTO_API || \ + CRYPTO_DEV_FSL_CAAM_CRYPTO_API_QI) |