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1# SPDX-License-Identifier: GPL-2.0
2config CRYPTO_DEV_FSL_CAAM_COMMON
3 tristate
4
5config CRYPTO_DEV_FSL_CAAM_CRYPTO_API_DESC
6 tristate
7
8config CRYPTO_DEV_FSL_CAAM_AHASH_API_DESC
9 tristate
10
11config CRYPTO_DEV_FSL_CAAM
12 tristate "Freescale CAAM-Multicore platform driver backend"
13 depends on FSL_SOC || ARCH_MXC || ARCH_LAYERSCAPE
14 select SOC_BUS
15 select CRYPTO_DEV_FSL_CAAM_COMMON
16 imply FSL_MC_BUS
17 help
18 Enables the driver module for Freescale's Cryptographic Accelerator
19 and Assurance Module (CAAM), also known as the SEC version 4 (SEC4).
20 This module creates job ring devices, and configures h/w
21 to operate as a DPAA component automatically, depending
22 on h/w feature availability.
23
24 To compile this driver as a module, choose M here: the module
25 will be called caam.
26
27if CRYPTO_DEV_FSL_CAAM
28
29config CRYPTO_DEV_FSL_CAAM_DEBUG
30 bool "Enable debug output in CAAM driver"
31 help
32 Selecting this will enable printing of various debug
33 information in the CAAM driver.
34
35menuconfig CRYPTO_DEV_FSL_CAAM_JR
36 tristate "Freescale CAAM Job Ring driver backend"
37 select CRYPTO_ENGINE
38 default y
39 help
40 Enables the driver module for Job Rings which are part of
41 Freescale's Cryptographic Accelerator
42 and Assurance Module (CAAM). This module adds a job ring operation
43 interface.
44
45 To compile this driver as a module, choose M here: the module
46 will be called caam_jr.
47
48if CRYPTO_DEV_FSL_CAAM_JR
49
50config CRYPTO_DEV_FSL_CAAM_RINGSIZE
51 int "Job Ring size"
52 range 2 9
53 default "9"
54 help
55 Select size of Job Rings as a power of 2, within the
56 range 2-9 (ring size 4-512).
57 Examples:
58 2 => 4
59 3 => 8
60 4 => 16
61 5 => 32
62 6 => 64
63 7 => 128
64 8 => 256
65 9 => 512
66
67config CRYPTO_DEV_FSL_CAAM_INTC
68 bool "Job Ring interrupt coalescing"
69 help
70 Enable the Job Ring's interrupt coalescing feature.
71
72 Note: the driver already provides adequate
73 interrupt coalescing in software.
74
75config CRYPTO_DEV_FSL_CAAM_INTC_COUNT_THLD
76 int "Job Ring interrupt coalescing count threshold"
77 depends on CRYPTO_DEV_FSL_CAAM_INTC
78 range 1 255
79 default 255
80 help
81 Select number of descriptor completions to queue before
82 raising an interrupt, in the range 1-255. Note that a selection
83 of 1 functionally defeats the coalescing feature, and a selection
84 equal or greater than the job ring size will force timeouts.
85
86config CRYPTO_DEV_FSL_CAAM_INTC_TIME_THLD
87 int "Job Ring interrupt coalescing timer threshold"
88 depends on CRYPTO_DEV_FSL_CAAM_INTC
89 range 1 65535
90 default 2048
91 help
92 Select number of bus clocks/64 to timeout in the case that one or
93 more descriptor completions are queued without reaching the count
94 threshold. Range is 1-65535.
95
96config CRYPTO_DEV_FSL_CAAM_CRYPTO_API
97 bool "Register algorithm implementations with the Crypto API"
98 default y
99 select CRYPTO_DEV_FSL_CAAM_CRYPTO_API_DESC
100 select CRYPTO_AEAD
101 select CRYPTO_AUTHENC
102 select CRYPTO_SKCIPHER
103 select CRYPTO_LIB_DES
104 help
105 Selecting this will offload crypto for users of the
106 scatterlist crypto API (such as the linux native IPSec
107 stack) to the SEC4 via job ring.
108
109config CRYPTO_DEV_FSL_CAAM_CRYPTO_API_QI
110 bool "Queue Interface as Crypto API backend"
111 depends on FSL_DPAA && NET
112 default y
113 select CRYPTO_DEV_FSL_CAAM_CRYPTO_API_DESC
114 select CRYPTO_AUTHENC
115 select CRYPTO_SKCIPHER
116 select CRYPTO_DES
117 help
118 Selecting this will use CAAM Queue Interface (QI) for sending
119 & receiving crypto jobs to/from CAAM. This gives better performance
120 than job ring interface when the number of cores are more than the
121 number of job rings assigned to the kernel. The number of portals
122 assigned to the kernel should also be more than the number of
123 job rings.
124
125config CRYPTO_DEV_FSL_CAAM_AHASH_API
126 bool "Register hash algorithm implementations with Crypto API"
127 default y
128 select CRYPTO_DEV_FSL_CAAM_AHASH_API_DESC
129 select CRYPTO_HASH
130 help
131 Selecting this will offload ahash for users of the
132 scatterlist crypto API to the SEC4 via job ring.
133
134config CRYPTO_DEV_FSL_CAAM_PKC_API
135 bool "Register public key cryptography implementations with Crypto API"
136 default y
137 select CRYPTO_RSA
138 help
139 Selecting this will allow SEC Public key support for RSA.
140 Supported cryptographic primitives: encryption, decryption,
141 signature and verification.
142
143config CRYPTO_DEV_FSL_CAAM_RNG_API
144 bool "Register caam device for hwrng API"
145 default y
146 select CRYPTO_RNG
147 select HW_RANDOM
148 help
149 Selecting this will register the SEC4 hardware rng to
150 the hw_random API for suppying the kernel entropy pool.
151
152endif # CRYPTO_DEV_FSL_CAAM_JR
153
154endif # CRYPTO_DEV_FSL_CAAM
155
156config CRYPTO_DEV_FSL_DPAA2_CAAM
157 tristate "QorIQ DPAA2 CAAM (DPSECI) driver"
158 depends on FSL_MC_DPIO
159 depends on NETDEVICES
160 select CRYPTO_DEV_FSL_CAAM_COMMON
161 select CRYPTO_DEV_FSL_CAAM_CRYPTO_API_DESC
162 select CRYPTO_DEV_FSL_CAAM_AHASH_API_DESC
163 select CRYPTO_SKCIPHER
164 select CRYPTO_AUTHENC
165 select CRYPTO_AEAD
166 select CRYPTO_HASH
167 select CRYPTO_DES
168 help
169 CAAM driver for QorIQ Data Path Acceleration Architecture 2.
170 It handles DPSECI DPAA2 objects that sit on the Management Complex
171 (MC) fsl-mc bus.
172
173 To compile this as a module, choose M here: the module
174 will be called dpaa2_caam.