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 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.
11 To compile this driver as a module, choose M here: the module
14 config CRYPTO_DEV_FSL_CAAM_RINGSIZE
16 depends on CRYPTO_DEV_FSL_CAAM
20 Select size of Job Rings as a power of 2, within the
21 range 2-9 (ring size 4-512).
32 config CRYPTO_DEV_FSL_CAAM_INTC
33 bool "Job Ring interrupt coalescing"
34 depends on CRYPTO_DEV_FSL_CAAM
37 Enable the Job Ring's interrupt coalescing feature.
39 Note: the driver already provides adequate
40 interrupt coalescing in software.
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
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.
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
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.
63 config CRYPTO_DEV_FSL_CAAM_CRYPTO_API
64 tristate "Register algorithm implementations with the Crypto API"
65 depends on CRYPTO_DEV_FSL_CAAM
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.
74 To compile this as a module, choose M here: the module
75 will be called caamalg.
77 config CRYPTO_DEV_FSL_CAAM_AHASH_API
78 tristate "Register hash algorithm implementations with Crypto API"
79 depends on CRYPTO_DEV_FSL_CAAM
83 Selecting this will offload ahash for users of the
84 scatterlist crypto API to the SEC4 via job ring.
86 To compile this as a module, choose M here: the module
87 will be called caamhash.
89 config CRYPTO_DEV_FSL_CAAM_RNG_API
90 tristate "Register caam device for hwrng API"
91 depends on CRYPTO_DEV_FSL_CAAM
96 Selecting this will register the SEC4 hardware rng to
97 the hw_random API for suppying the kernel entropy pool.
99 To compile this as a module, choose M here: the module
100 will be called caamrng.