LXR linux/drivers/crypto/caam/Kconfig

   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