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| author | Declan Murphy <declan.murphy@intel.com> | 2020-12-16 12:46:36 +0100 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2021-01-02 22:41:36 +0100 |
| commit | 472b04444cd39e16ba54987b2e901a79cf175463 (patch) | |
| tree | 7a8ad9c520f567383524a66b1fbe596943492052 /drivers/crypto/keembay/Kconfig | |
| parent | dt-bindings: crypto: Add Keem Bay OCS HCU bindings (diff) | |
| download | linux-472b04444cd39e16ba54987b2e901a79cf175463.tar.xz linux-472b04444cd39e16ba54987b2e901a79cf175463.zip | |
crypto: keembay - Add Keem Bay OCS HCU driver
Add support for the Hashing Control Unit (HCU) included in the Offload
Crypto Subsystem (OCS) of the Intel Keem Bay SoC, thus enabling
hardware-accelerated hashing on the Keem Bay SoC for the following
algorithms:
- sha256
- sha384
- sha512
- sm3
The driver is composed of two files:
- 'ocs-hcu.c' which interacts with the hardware and abstracts it by
providing an API following the usual paradigm used in hashing drivers
/ libraries (e.g., hash_init(), hash_update(), hash_final(), etc.).
NOTE: this API can block and sleep, since completions are used to wait
for the HW to complete the hashing.
- 'keembay-ocs-hcu-core.c' which exports the functionality provided by
'ocs-hcu.c' as a ahash crypto driver. The crypto engine is used to
provide asynchronous behavior. 'keembay-ocs-hcu-core.c' also takes
care of the DMA mapping of the input sg list.
The driver passes crypto manager self-tests, including the extra tests
(CRYPTO_MANAGER_EXTRA_TESTS=y).
Signed-off-by: Declan Murphy <declan.murphy@intel.com>
Co-developed-by: Daniele Alessandrelli <daniele.alessandrelli@intel.com>
Signed-off-by: Daniele Alessandrelli <daniele.alessandrelli@intel.com>
Acked-by: Mark Gross <mgross@linux.intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/keembay/Kconfig')
| -rw-r--r-- | drivers/crypto/keembay/Kconfig | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/crypto/keembay/Kconfig b/drivers/crypto/keembay/Kconfig index f2e17b0c4fa0..e99b5ddf4b94 100644 --- a/drivers/crypto/keembay/Kconfig +++ b/drivers/crypto/keembay/Kconfig @@ -38,3 +38,20 @@ config CRYPTO_DEV_KEEMBAY_OCS_AES_SM4_CTS Provides OCS version of cts(cbc(aes)) and cts(cbc(sm4)). Intel does not recommend use of CTS mode with AES/SM4. + +config CRYPTO_DEV_KEEMBAY_OCS_HCU + tristate "Support for Intel Keem Bay OCS HCU HW acceleration" + select CRYPTO_HASH + select CRYPTO_ENGINE + depends on OF || COMPILE_TEST + help + Support for Intel Keem Bay Offload and Crypto Subsystem (OCS) Hash + Control Unit (HCU) hardware acceleration for use with Crypto API. + + Provides OCS HCU hardware acceleration of sha256, sha384, sha512, and + sm3. + + Say Y or M if you're building for the Intel Keem Bay SoC. If compiled + as a module, the module will be called keembay-ocs-hcu. + + If unsure, say N. |