1config CRYPTO_DEV_FSL_CAAM 2 tristate "Freescale CAAM-Multicore driver backend" 3 depends on FSL_SOC 4 help 5 Enables the driver module for Freescale's Cryptographic Accelerator 6 and Assurance Module (CAAM), also known as the SEC version 4 (SEC4). 7 This module adds a job ring operation interface, and configures h/w 8 to operate as a DPAA component automatically, depending 9 on h/w feature availability. 10 11 To compile this driver as a module, choose M here: the module 12 will be called caam. 13 14config CRYPTO_DEV_FSL_CAAM_RINGSIZE 15 int "Job Ring size" 16 depends on CRYPTO_DEV_FSL_CAAM 17 range 2 9 18 default "9" 19 help 20 Select size of Job Rings as a power of 2, within the 21 range 2-9 (ring size 4-512). 22 Examples: 23 2 => 4 24 3 => 8 25 4 => 16 26 5 => 32 27 6 => 64 28 7 => 128 29 8 => 256 30 9 => 512 31 32config CRYPTO_DEV_FSL_CAAM_INTC 33 bool "Job Ring interrupt coalescing" 34 depends on CRYPTO_DEV_FSL_CAAM 35 default n 36 help 37 Enable the Job Ring's interrupt coalescing feature. 38 39 Note: the driver already provides adequate 40 interrupt coalescing in software. 41 42config CRYPTO_DEV_FSL_CAAM_INTC_COUNT_THLD 43 int "Job Ring interrupt coalescing count threshold" 44 depends on CRYPTO_DEV_FSL_CAAM_INTC 45 range 1 255 46 default 255 47 help 48 Select number of descriptor completions to queue before 49 raising an interrupt, in the range 1-255. Note that a selection 50 of 1 functionally defeats the coalescing feature, and a selection 51 equal or greater than the job ring size will force timeouts. 52 53config CRYPTO_DEV_FSL_CAAM_INTC_TIME_THLD 54 int "Job Ring interrupt coalescing timer threshold" 55 depends on CRYPTO_DEV_FSL_CAAM_INTC 56 range 1 65535 57 default 2048 58 help 59 Select number of bus clocks/64 to timeout in the case that one or 60 more descriptor completions are queued without reaching the count 61 threshold. Range is 1-65535. 62 63config CRYPTO_DEV_FSL_CAAM_CRYPTO_API 64 tristate "Register algorithm implementations with the Crypto API" 65 depends on CRYPTO_DEV_FSL_CAAM 66 default y 67 select CRYPTO_ALGAPI 68 select CRYPTO_AUTHENC 69 help 70 Selecting this will offload crypto for users of the 71 scatterlist crypto API (such as the linux native IPSec 72 stack) to the SEC4 via job ring. 73 74 To compile this as a module, choose M here: the module 75 will be called caamalg. 76 77config CRYPTO_DEV_FSL_CAAM_AHASH_API 78 tristate "Register hash algorithm implementations with Crypto API" 79 depends on CRYPTO_DEV_FSL_CAAM 80 default y 81 select CRYPTO_HASH 82 help 83 Selecting this will offload ahash for users of the 84 scatterlist crypto API to the SEC4 via job ring. 85 86 To compile this as a module, choose M here: the module 87 will be called caamhash. 88 89config CRYPTO_DEV_FSL_CAAM_RNG_API 90 tristate "Register caam device for hwrng API" 91 depends on CRYPTO_DEV_FSL_CAAM 92 default y 93 select CRYPTO_RNG 94 select HW_RANDOM 95 help 96 Selecting this will register the SEC4 hardware rng to 97 the hw_random API for suppying the kernel entropy pool. 98 99 To compile this as a module, choose M here: the module 100 will be called caamrng. 101