tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1# SPDX-License-Identifier: GPL-2.0
2config CRYPTO_DEV_FSL_CAAM_COMMON
3 tristate
4
5config CRYPTO_DEV_FSL_CAAM
6 tristate "Freescale CAAM-Multicore platform driver backend"
7 depends on FSL_SOC || ARCH_MXC || ARCH_LAYERSCAPE
8 select SOC_BUS
9 select CRYPTO_DEV_FSL_CAAM_COMMON
10 help
11 Enables the driver module for Freescale's Cryptographic Accelerator
12 and Assurance Module (CAAM), also known as the SEC version 4 (SEC4).
13 This module creates job ring devices, and configures h/w
14 to operate as a DPAA component automatically, depending
15 on h/w feature availability.
16
17 To compile this driver as a module, choose M here: the module
18 will be called caam.
19
20if CRYPTO_DEV_FSL_CAAM
21
22config CRYPTO_DEV_FSL_CAAM_DEBUG
23 bool "Enable debug output in CAAM driver"
24 help
25 Selecting this will enable printing of various debug
26 information in the CAAM driver.
27
28config CRYPTO_DEV_FSL_CAAM_JR
29 tristate "Freescale CAAM Job Ring driver backend"
30 default y
31 help
32 Enables the driver module for Job Rings which are part of
33 Freescale's Cryptographic Accelerator
34 and Assurance Module (CAAM). This module adds a job ring operation
35 interface.
36
37 To compile this driver as a module, choose M here: the module
38 will be called caam_jr.
39
40if CRYPTO_DEV_FSL_CAAM_JR
41
42config CRYPTO_DEV_FSL_CAAM_RINGSIZE
43 int "Job Ring size"
44 range 2 9
45 default "9"
46 help
47 Select size of Job Rings as a power of 2, within the
48 range 2-9 (ring size 4-512).
49 Examples:
50 2 => 4
51 3 => 8
52 4 => 16
53 5 => 32
54 6 => 64
55 7 => 128
56 8 => 256
57 9 => 512
58
59config CRYPTO_DEV_FSL_CAAM_INTC
60 bool "Job Ring interrupt coalescing"
61 help
62 Enable the Job Ring's interrupt coalescing feature.
63
64 Note: the driver already provides adequate
65 interrupt coalescing in software.
66
67config CRYPTO_DEV_FSL_CAAM_INTC_COUNT_THLD
68 int "Job Ring interrupt coalescing count threshold"
69 depends on CRYPTO_DEV_FSL_CAAM_INTC
70 range 1 255
71 default 255
72 help
73 Select number of descriptor completions to queue before
74 raising an interrupt, in the range 1-255. Note that a selection
75 of 1 functionally defeats the coalescing feature, and a selection
76 equal or greater than the job ring size will force timeouts.
77
78config CRYPTO_DEV_FSL_CAAM_INTC_TIME_THLD
79 int "Job Ring interrupt coalescing timer threshold"
80 depends on CRYPTO_DEV_FSL_CAAM_INTC
81 range 1 65535
82 default 2048
83 help
84 Select number of bus clocks/64 to timeout in the case that one or
85 more descriptor completions are queued without reaching the count
86 threshold. Range is 1-65535.
87
88config CRYPTO_DEV_FSL_CAAM_CRYPTO_API
89 tristate "Register algorithm implementations with the Crypto API"
90 default y
91 select CRYPTO_AEAD
92 select CRYPTO_AUTHENC
93 select CRYPTO_BLKCIPHER
94 select CRYPTO_DES
95 help
96 Selecting this will offload crypto for users of the
97 scatterlist crypto API (such as the linux native IPSec
98 stack) to the SEC4 via job ring.
99
100 To compile this as a module, choose M here: the module
101 will be called caamalg.
102
103config CRYPTO_DEV_FSL_CAAM_CRYPTO_API_QI
104 tristate "Queue Interface as Crypto API backend"
105 depends on FSL_DPAA && NET
106 default y
107 select CRYPTO_AUTHENC
108 select CRYPTO_BLKCIPHER
109 help
110 Selecting this will use CAAM Queue Interface (QI) for sending
111 & receiving crypto jobs to/from CAAM. This gives better performance
112 than job ring interface when the number of cores are more than the
113 number of job rings assigned to the kernel. The number of portals
114 assigned to the kernel should also be more than the number of
115 job rings.
116
117 To compile this as a module, choose M here: the module
118 will be called caamalg_qi.
119
120config CRYPTO_DEV_FSL_CAAM_AHASH_API
121 tristate "Register hash algorithm implementations with Crypto API"
122 default y
123 select CRYPTO_HASH
124 help
125 Selecting this will offload ahash for users of the
126 scatterlist crypto API to the SEC4 via job ring.
127
128 To compile this as a module, choose M here: the module
129 will be called caamhash.
130
131config CRYPTO_DEV_FSL_CAAM_PKC_API
132 tristate "Register public key cryptography implementations with Crypto API"
133 default y
134 select CRYPTO_RSA
135 help
136 Selecting this will allow SEC Public key support for RSA.
137 Supported cryptographic primitives: encryption, decryption,
138 signature and verification.
139 To compile this as a module, choose M here: the module
140 will be called caam_pkc.
141
142config CRYPTO_DEV_FSL_CAAM_RNG_API
143 tristate "Register caam device for hwrng API"
144 default y
145 select CRYPTO_RNG
146 select HW_RANDOM
147 help
148 Selecting this will register the SEC4 hardware rng to
149 the hw_random API for suppying the kernel entropy pool.
150
151 To compile this as a module, choose M here: the module
152 will be called caamrng.
153
154endif # CRYPTO_DEV_FSL_CAAM_JR
155
156endif # CRYPTO_DEV_FSL_CAAM
157
158config CRYPTO_DEV_FSL_DPAA2_CAAM
159 tristate "QorIQ DPAA2 CAAM (DPSECI) driver"
160 depends on FSL_MC_DPIO
161 depends on NETDEVICES
162 select CRYPTO_DEV_FSL_CAAM_COMMON
163 select CRYPTO_BLKCIPHER
164 select CRYPTO_AUTHENC
165 select CRYPTO_AEAD
166 select CRYPTO_HASH
167 help
168 CAAM driver for QorIQ Data Path Acceleration Architecture 2.
169 It handles DPSECI DPAA2 objects that sit on the Management Complex
170 (MC) fsl-mc bus.
171
172 To compile this as a module, choose M here: the module
173 will be called dpaa2_caam.
174
175config CRYPTO_DEV_FSL_CAAM_CRYPTO_API_DESC
176 def_tristate (CRYPTO_DEV_FSL_CAAM_CRYPTO_API || \
177 CRYPTO_DEV_FSL_CAAM_CRYPTO_API_QI || \
178 CRYPTO_DEV_FSL_DPAA2_CAAM)
179
180config CRYPTO_DEV_FSL_CAAM_AHASH_API_DESC
181 def_tristate (CRYPTO_DEV_FSL_CAAM_AHASH_API || \
182 CRYPTO_DEV_FSL_DPAA2_CAAM)