Add the following additional dependencies for CRYPTO_DEV_KEEMBAY_OCS_HCU:
- HAS_IOMEM to prevent build failures
- ARCH_KEEMBAY to prevent asking the user about this driver when
configuring a kernel without Intel Keem Bay platform support.
Signed-off-by: Daniele Alessandrelli <daniele.alessandrelli@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Add HMAC support to the Keem Bay OCS HCU driver, thus making it provide
the following additional transformations:
- hmac(sha256)
- hmac(sha384)
- hmac(sha512)
- hmac(sm3)
The Keem Bay OCS HCU hardware does not allow "context-switch" for HMAC
operations, i.e., it does not support computing a partial HMAC, save its
state and then continue it later. Therefore, full hardware acceleration
is provided only when possible (e.g., when crypto_ahash_digest() is
called); in all other cases hardware acceleration is only partial (OPAD
and IPAD calculation is done in software, while hashing is hardware
accelerated).
Co-developed-by: Declan Murphy <declan.murphy@intel.com>
Signed-off-by: Declan Murphy <declan.murphy@intel.com>
Signed-off-by: Daniele Alessandrelli <daniele.alessandrelli@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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>
Add dependency for CRYPTO_DEV_KEEMBAY_OCS_AES_SM4 on HAS_IOMEM to
prevent build failures.
Fixes: 8857433245 ("crypto: keembay - Add support for Keem Bay OCS AES/SM4")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Daniele Alessandrelli <daniele.alessandrelli@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
The Intel Keem Bay Offload and Crypto Subsystem (OCS) is only present on
Intel Keem Bay SoCs. Hence add a dependency on ARCH_KEEMBAY, to prevent
asking the user about this driver when configuring a kernel without
Intel Keem Bay platform support.
While at it, fix a misspelling of "cipher".
Fixes: 8857433245 ("crypto: keembay - Add support for Keem Bay OCS AES/SM4")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Daniele Alessandrelli <daniele.alessandrelli@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Add support for the AES/SM4 crypto engine included in the Offload and
Crypto Subsystem (OCS) of the Intel Keem Bay SoC, thus enabling
hardware-acceleration for the following transformations:
- ecb(aes), cbc(aes), ctr(aes), cts(cbc(aes)), gcm(aes) and cbc(aes);
supported for 128-bit and 256-bit keys.
- ecb(sm4), cbc(sm4), ctr(sm4), cts(cbc(sm4)), gcm(sm4) and cbc(sm4);
supported for 128-bit keys.
The driver passes crypto manager self-tests, including the extra tests
(CRYPTO_MANAGER_EXTRA_TESTS=y).
Signed-off-by: Mike Healy <mikex.healy@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>
