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 creates job ring devices, 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_JR
  15         tristate "Freescale CAAM Job Ring driver backend"
  16         depends on CRYPTO_DEV_FSL_CAAM
  17         default y
  18         help
  19           Enables the driver module for Job Rings which are part of
  20           Freescale's Cryptographic Accelerator
  21           and Assurance Module (CAAM). This module adds a job ring operation
  22           interface.
  23
  24           To compile this driver as a module, choose M here: the module
  25           will be called caam_jr.
  26
  27 config CRYPTO_DEV_FSL_CAAM_RINGSIZE
  28         int "Job Ring size"
  29         depends on CRYPTO_DEV_FSL_CAAM_JR
  30         range 2 9
  31         default "9"
  32         help
  33           Select size of Job Rings as a power of 2, within the
  34           range 2-9 (ring size 4-512).
  35           Examples:
  36                 2 => 4
  37                 3 => 8
  38                 4 => 16
  39                 5 => 32
  40                 6 => 64
  41                 7 => 128
  42                 8 => 256
  43                 9 => 512
  44
  45 config CRYPTO_DEV_FSL_CAAM_INTC
  46         bool "Job Ring interrupt coalescing"
  47         depends on CRYPTO_DEV_FSL_CAAM_JR
  48         default n
  49         help
  50           Enable the Job Ring's interrupt coalescing feature.
  51
  52           Note: the driver already provides adequate
  53           interrupt coalescing in software.
  54
  55 config CRYPTO_DEV_FSL_CAAM_INTC_COUNT_THLD
  56         int "Job Ring interrupt coalescing count threshold"
  57         depends on CRYPTO_DEV_FSL_CAAM_INTC
  58         range 1 255
  59         default 255
  60         help
  61           Select number of descriptor completions to queue before
  62           raising an interrupt, in the range 1-255. Note that a selection
  63           of 1 functionally defeats the coalescing feature, and a selection
  64           equal or greater than the job ring size will force timeouts.
  65
  66 config CRYPTO_DEV_FSL_CAAM_INTC_TIME_THLD
  67         int "Job Ring interrupt coalescing timer threshold"
  68         depends on CRYPTO_DEV_FSL_CAAM_INTC
  69         range 1 65535
  70         default 2048
  71         help
  72           Select number of bus clocks/64 to timeout in the case that one or
  73           more descriptor completions are queued without reaching the count
  74           threshold. Range is 1-65535.
  75
  76 config CRYPTO_DEV_FSL_CAAM_CRYPTO_API
  77         tristate "Register algorithm implementations with the Crypto API"
  78         depends on CRYPTO_DEV_FSL_CAAM && CRYPTO_DEV_FSL_CAAM_JR
  79         default y
  80         select CRYPTO_ALGAPI
  81         select CRYPTO_AUTHENC
  82         help
  83           Selecting this will offload crypto for users of the
  84           scatterlist crypto API (such as the linux native IPSec
  85           stack) to the SEC4 via job ring.
  86
  87           To compile this as a module, choose M here: the module
  88           will be called caamalg.
  89
  90 config CRYPTO_DEV_FSL_CAAM_AHASH_API
  91         tristate "Register hash algorithm implementations with Crypto API"
  92         depends on CRYPTO_DEV_FSL_CAAM && CRYPTO_DEV_FSL_CAAM_JR
  93         default y
  94         select CRYPTO_HASH
  95         help
  96           Selecting this will offload ahash for users of the
  97           scatterlist crypto API to the SEC4 via job ring.
  98
  99           To compile this as a module, choose M here: the module
 100           will be called caamhash.
 101
 102 config CRYPTO_DEV_FSL_CAAM_RNG_API
 103         tristate "Register caam device for hwrng API"
 104         depends on CRYPTO_DEV_FSL_CAAM && CRYPTO_DEV_FSL_CAAM_JR
 105         default y
 106         select CRYPTO_RNG
 107         select HW_RANDOM
 108         help
 109           Selecting this will register the SEC4 hardware rng to
 110           the hw_random API for suppying the kernel entropy pool.
 111
 112           To compile this as a module, choose M here: the module
 113           will be called caamrng.
 114
 115 config CRYPTO_DEV_FSL_CAAM_DEBUG
 116         bool "Enable debug output in CAAM driver"
 117         depends on CRYPTO_DEV_FSL_CAAM
 118         default n
 119         help
 120           Selecting this will enable printing of various debug
 121           information in the CAAM driver.