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The Intel QAT driver provides support for the Diffie-Hellman (DH)
algorithm, limited to prime numbers up to 4K. This driver is used
by default on platforms with integrated QAT hardware for all DH requests.
This has led to failures with algorithms requiring larger prime sizes,
such as ffdhe6144.
alg: ffdhe6144(dh): test failed on vector 1, err=-22
alg: self-tests for ffdhe6144(qat-dh) (ffdhe6144(dh)) failed (rc=-22)
Implement a fallback mechanism when an unsupported request is received.
Signed-off-by: Damian Muszynski <damian.muszynski@intel.com>
Reviewed-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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The callback function for RSA frees the memory allocated for the source
and destination buffers before unmapping them.
This sequence is wrong.
Change the cleanup sequence to unmap the buffers before freeing them.
Fixes: 3dfaf0071ed7 ("crypto: qat - remove dma_free_coherent() for RSA")
Signed-off-by: Hareshx Sankar Raj <hareshx.sankar.raj@intel.com>
Co-developed-by: Bolemx Sivanagaleela <bolemx.sivanagaleela@intel.com>
Signed-off-by: Bolemx Sivanagaleela <bolemx.sivanagaleela@intel.com>
Reviewed-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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The callback function for DH frees the memory allocated for the
destination buffer before unmapping it.
This sequence is wrong.
Change the cleanup sequence to unmap the buffer before freeing it.
Fixes: 029aa4624a7f ("crypto: qat - remove dma_free_coherent() for DH")
Signed-off-by: Hareshx Sankar Raj <hareshx.sankar.raj@intel.com>
Co-developed-by: Bolemx Sivanagaleela <bolemx.sivanagaleela@intel.com>
Signed-off-by: Bolemx Sivanagaleela <bolemx.sivanagaleela@intel.com>
Reviewed-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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With the growing number of Intel crypto drivers, it makes sense to
group them all into a single drivers/crypto/intel/ directory.
Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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