[mirror_ubuntu-zesty-kernel.git] / drivers / crypto / caam / Kconfig

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_HASH
	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.
Commit	Line	Data
8e8ec596 KP	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
1a076689	35	default n
8e8ec596 KP	36	help
	37	Enable the Job Ring's interrupt coalescing feature.
	38
1a076689 KP	39	Note: the driver already provides adequate
	40	interrupt coalescing in software.
	41
8e8ec596 KP	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.
045e3678 YK	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
ae8488a5	81	select CRYPTO_HASH
045e3678 YK	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.
e24f7c9e YK	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.