1 config CRYPTO_DEV_FSL_CAAM
2 tristate "Freescale CAAM-Multicore driver backend"
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.
11 To compile this driver as a module, choose M here: the module
14 config CRYPTO_DEV_FSL_CAAM_JR
15 tristate "Freescale CAAM Job Ring driver backend"
16 depends on CRYPTO_DEV_FSL_CAAM
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
24 To compile this driver as a module, choose M here: the module
25 will be called caam_jr.
27 config CRYPTO_DEV_FSL_CAAM_RINGSIZE
29 depends on CRYPTO_DEV_FSL_CAAM_JR
33 Select size of Job Rings as a power of 2, within the
34 range 2-9 (ring size 4-512).
45 config CRYPTO_DEV_FSL_CAAM_INTC
46 bool "Job Ring interrupt coalescing"
47 depends on CRYPTO_DEV_FSL_CAAM_JR
50 Enable the Job Ring's interrupt coalescing feature.
52 Note: the driver already provides adequate
53 interrupt coalescing in software.
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
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.
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
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.
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
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.
87 To compile this as a module, choose M here: the module
88 will be called caamalg.
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
96 Selecting this will offload ahash for users of the
97 scatterlist crypto API to the SEC4 via job ring.
99 To compile this as a module, choose M here: the module
100 will be called caamhash.
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
109 Selecting this will register the SEC4 hardware rng to
110 the hw_random API for suppying the kernel entropy pool.
112 To compile this as a module, choose M here: the module
113 will be called caamrng.
115 config CRYPTO_DEV_FSL_CAAM_DEBUG
116 bool "Enable debug output in CAAM driver"
117 depends on CRYPTO_DEV_FSL_CAAM
120 Selecting this will enable printing of various debug
121 information in the CAAM driver.