drivers/crypto/caam/Kconfig

   1 config 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
  14 config 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
  32 config 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
  42 config 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
  53 config 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
  63 config 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
  77 config 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
  89 config 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
 102 config CRYPTO_DEV_FSL_CAAM_DEBUG
 103         bool "Enable debug output in CAAM driver"
 104         depends on CRYPTO_DEV_FSL_CAAM
 105         default n
 106         help
 107           Selecting this will enable printing of various debug
 108           information in the CAAM driver.