261ea058f0
There are SoCs like LS1043A where CAAM endianness (BE) does not match
the default endianness of the core (LE).
Moreover, there are requirements for the driver to handle cases like
CPU_BIG_ENDIAN=y on ARM-based SoCs.
This requires for a complete rewrite of the I/O accessors.
PPC-specific accessors - {in,out}_{le,be}XX - are replaced with
generic ones - io{read,write}[be]XX.
Endianness is detected dynamically (at runtime) to allow for
multiplatform kernels, for e.g. running the same kernel image
on LS1043A (BE CAAM) and LS2080A (LE CAAM) armv8-based SoCs.
While here: debugfs entries need to take into consideration the
endianness of the core when displaying data. Add the necessary
glue code so the entries remain the same, but they are properly
read, regardless of the core and/or SEC endianness.
Note: pdb.h fixes only what is currently being used (IPsec).
Reviewed-by: Tudor Ambarus <tudor-dan.ambarus@nxp.com>
Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Alex Porosanu <alexandru.porosanu@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
125 lines
3.7 KiB
Plaintext
125 lines
3.7 KiB
Plaintext
config CRYPTO_DEV_FSL_CAAM
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tristate "Freescale CAAM-Multicore driver backend"
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depends on FSL_SOC || ARCH_MXC
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help
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Enables the driver module for Freescale's Cryptographic Accelerator
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and Assurance Module (CAAM), also known as the SEC version 4 (SEC4).
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This module creates job ring devices, and configures h/w
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to operate as a DPAA component automatically, depending
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on h/w feature availability.
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To compile this driver as a module, choose M here: the module
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will be called caam.
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config CRYPTO_DEV_FSL_CAAM_JR
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tristate "Freescale CAAM Job Ring driver backend"
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depends on CRYPTO_DEV_FSL_CAAM
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default y
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help
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Enables the driver module for Job Rings which are part of
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Freescale's Cryptographic Accelerator
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and Assurance Module (CAAM). This module adds a job ring operation
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interface.
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To compile this driver as a module, choose M here: the module
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will be called caam_jr.
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config CRYPTO_DEV_FSL_CAAM_RINGSIZE
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int "Job Ring size"
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depends on CRYPTO_DEV_FSL_CAAM_JR
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range 2 9
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default "9"
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help
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Select size of Job Rings as a power of 2, within the
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range 2-9 (ring size 4-512).
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Examples:
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2 => 4
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3 => 8
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4 => 16
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5 => 32
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6 => 64
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7 => 128
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8 => 256
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9 => 512
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config CRYPTO_DEV_FSL_CAAM_INTC
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bool "Job Ring interrupt coalescing"
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depends on CRYPTO_DEV_FSL_CAAM_JR
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help
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Enable the Job Ring's interrupt coalescing feature.
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Note: the driver already provides adequate
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interrupt coalescing in software.
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config CRYPTO_DEV_FSL_CAAM_INTC_COUNT_THLD
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int "Job Ring interrupt coalescing count threshold"
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depends on CRYPTO_DEV_FSL_CAAM_INTC
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range 1 255
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default 255
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help
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Select number of descriptor completions to queue before
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raising an interrupt, in the range 1-255. Note that a selection
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of 1 functionally defeats the coalescing feature, and a selection
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equal or greater than the job ring size will force timeouts.
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config CRYPTO_DEV_FSL_CAAM_INTC_TIME_THLD
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int "Job Ring interrupt coalescing timer threshold"
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depends on CRYPTO_DEV_FSL_CAAM_INTC
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range 1 65535
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default 2048
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help
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Select number of bus clocks/64 to timeout in the case that one or
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more descriptor completions are queued without reaching the count
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threshold. Range is 1-65535.
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config CRYPTO_DEV_FSL_CAAM_CRYPTO_API
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tristate "Register algorithm implementations with the Crypto API"
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depends on CRYPTO_DEV_FSL_CAAM && CRYPTO_DEV_FSL_CAAM_JR
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default y
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select CRYPTO_AEAD
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select CRYPTO_AUTHENC
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select CRYPTO_BLKCIPHER
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help
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Selecting this will offload crypto for users of the
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scatterlist crypto API (such as the linux native IPSec
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stack) to the SEC4 via job ring.
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To compile this as a module, choose M here: the module
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will be called caamalg.
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config CRYPTO_DEV_FSL_CAAM_AHASH_API
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tristate "Register hash algorithm implementations with Crypto API"
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depends on CRYPTO_DEV_FSL_CAAM && CRYPTO_DEV_FSL_CAAM_JR
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default y
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select CRYPTO_HASH
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help
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Selecting this will offload ahash for users of the
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scatterlist crypto API to the SEC4 via job ring.
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To compile this as a module, choose M here: the module
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will be called caamhash.
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config CRYPTO_DEV_FSL_CAAM_RNG_API
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tristate "Register caam device for hwrng API"
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depends on CRYPTO_DEV_FSL_CAAM && CRYPTO_DEV_FSL_CAAM_JR
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default y
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select CRYPTO_RNG
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select HW_RANDOM
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help
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Selecting this will register the SEC4 hardware rng to
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the hw_random API for suppying the kernel entropy pool.
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To compile this as a module, choose M here: the module
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will be called caamrng.
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config CRYPTO_DEV_FSL_CAAM_IMX
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def_bool SOC_IMX6 || SOC_IMX7D
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depends on CRYPTO_DEV_FSL_CAAM
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config CRYPTO_DEV_FSL_CAAM_DEBUG
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bool "Enable debug output in CAAM driver"
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depends on CRYPTO_DEV_FSL_CAAM
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help
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Selecting this will enable printing of various debug
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information in the CAAM driver.
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