| 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 n | |
| 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 | |
| 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 | |
| tristate "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 | |
| tristate "Register caam device for hwrng API" | |
| depends on CRYPTO_DEV_FSL_CAAM | |
| 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. |