NACK: [SRU][F][PATCH 0/1] UBUNTU: SAUCE: pka: Handle ring open scenario when rings are busy
Stefan Bader
stefan.bader at canonical.com
Fri Feb 19 08:13:38 UTC 2021
On 17.02.21 17:33, Mahantesh Salimath wrote:
> BugLink: https://bugs.launchpad.net/chelmsford/+bug/1911931
>
> SRU Justification:
>
> [Impact]
> * Kernel traces are seen at startup on Bluefield platforms (by Mellanox/Nvidia) due to applications using public key accelerator (PKA) hardware simultaneously.
>
> [Fix]
> * Allow synchronized usage of PKA hardware resources "pka: Handle ring open scenario when rings are busy"
>
> [Test Case]
> * Trigger multiple processes/applications to use PKA HW simultaneously, this can be done via OpenSSL. Run the OpenSSL speed test with multiple processes using 'pka' engine. Ex: openssl speed -multi 2 -engine pka rsa512
> * Note: On Bluefield platforms the OpenSSL dynamic engine (-engine pka, in the above example) is loaded by default.
>
> [Other]
> * Note: Unit of PKA HW available for application usage is called a ring.
>
Same reasons as before.
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