config CRYPTO_DEV_FSL_CAAM tristate "Freescale CAAM-Multicore driver backend" depends on FSL_SOC 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 tristate "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.