Re: [Patch v2 0/6] Enable Qualcomm Crypto Engine on sdm845

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On 11/19/20 5:44 PM, Eric Biggers wrote:
On Thu, Nov 19, 2020 at 10:52:27AM -0500, Thara Gopinath wrote:
Qualcomm crypto engine supports hardware accelerated algorithms for
encryption and authentication. Enable support for aes,des,3des encryption
algorithms and sha1,sha256, hmac(sha1),hmac(sha256) authentication
algorithms on sdm845.The patch series has been tested using the kernel
crypto testing module tcrypto.ko.

Can you please test CONFIG_CRYPTO_MANAGER_EXTRA_TESTS=y too?  Implementations of
crypto algorithms shouldn't be enabled unless they are passing all tests.

Hi Eric,
Yes. I will get around to this probably next week.


Also, did you compare the performance of this hardware to ARMv8 CE?  I thought
that QCE (at least on other SoCs) isn't very useful because ARMv8 CE is faster.

That is surprising. No I did not compare performance. But I see the Qualcomm crypto engine driver enabled and used in the downstream tree for this platform. I see no reason for it not to be in mainline and to be maintained as an out of tree solution. I will try to run some performance benchmarks soon.


- Eric


--
Warm Regards
Thara



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