[mirror_ubuntu-artful-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 creates job ring devices, 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_JR
	tristate "Freescale CAAM Job Ring driver backend"
	depends on CRYPTO_DEV_FSL_CAAM
	default y
	help
	  Enables the driver module for Job Rings which are part of
	  Freescale's Cryptographic Accelerator
	  and Assurance Module (CAAM). This module adds a job ring operation
	  interface.

	  To compile this driver as a module, choose M here: the module
	  will be called caam_jr.

config CRYPTO_DEV_FSL_CAAM_RINGSIZE
	int "Job Ring size"
	depends on CRYPTO_DEV_FSL_CAAM_JR
	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_JR
	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 && CRYPTO_DEV_FSL_CAAM_JR
	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 && CRYPTO_DEV_FSL_CAAM_JR
	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 && CRYPTO_DEV_FSL_CAAM_JR
	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.

config CRYPTO_DEV_FSL_CAAM_DEBUG
	bool "Enable debug output in CAAM driver"
	depends on CRYPTO_DEV_FSL_CAAM
	default n
	help
	  Selecting this will enable printing of various debug
	  information in the CAAM driver.
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).
313ea293	7	This module creates job ring devices, and configures h/w
8e8ec596 KP	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
313ea293 RG	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
8e8ec596 KP	27	config CRYPTO_DEV_FSL_CAAM_RINGSIZE
8e8ec596 KP	28	int "Job Ring size"
313ea293	29	depends on CRYPTO_DEV_FSL_CAAM_JR
8e8ec596 KP	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"
313ea293	47	depends on CRYPTO_DEV_FSL_CAAM_JR
1a076689	48	default n
8e8ec596 KP	49	help
	50	Enable the Job Ring's interrupt coalescing feature.
	51
1a076689 KP	52	Note: the driver already provides adequate
	53	interrupt coalescing in software.
	54
8e8ec596 KP	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"
313ea293	78	depends on CRYPTO_DEV_FSL_CAAM && CRYPTO_DEV_FSL_CAAM_JR
8e8ec596 KP	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.
045e3678 YK	89
	90	config CRYPTO_DEV_FSL_CAAM_AHASH_API
	91	tristate "Register hash algorithm implementations with Crypto API"
313ea293	92	depends on CRYPTO_DEV_FSL_CAAM && CRYPTO_DEV_FSL_CAAM_JR
045e3678	93	default y
ae8488a5	94	select CRYPTO_HASH
045e3678 YK	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.
e24f7c9e YK	101
	102	config CRYPTO_DEV_FSL_CAAM_RNG_API
	103	tristate "Register caam device for hwrng API"
313ea293	104	depends on CRYPTO_DEV_FSL_CAAM && CRYPTO_DEV_FSL_CAAM_JR
e24f7c9e YK	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.
d4d8edf8 AP	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.