[Bug 2056354] Re: qat: Improve error recovery flows

This bug is awaiting verification that the linux-gcp/6.8.0-1008.9 kernel
in -proposed solves the problem. Please test the kernel and update this
bug with the results. If the problem is solved, change the tag
'verification-needed-noble-linux-gcp' to 'verification-done-noble-linux-
gcp'. If the problem still exists, change the tag 'verification-needed-
noble-linux-gcp' to 'verification-failed-noble-linux-gcp'.


If verification is not done by 5 working days from today, this fix will
be dropped from the source code, and this bug will be closed.


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https://bugs.launchpad.net/bugs/2056354

Title:
qat: Improve error recovery flows

Status in linux package in Ubuntu:
Fix Released
Status in linux source package in Noble:
Fix Released

Bug description:
[Impact]

This set improves the error recovery flows in the QAT drivers and
adds a mechanism to test it through an heartbeat simulator.

This is an upstream patch set applied to linux-next and scheduled for
6.9.

Link to the upstream submission:
https://patchwork.kernel.org/project/linux-crypto/cover/20240202105324.50391-1-mun.chun.yep@intel.com/

We should apply this set to the Noble 6.8 kernel,
in order to experience less issues with qat and improve maintainability.

An added commit is required to update the configuration.

[Test case]

Unload and reload the module to verify that qat recover
and log issues properly. Use the added error injection mechanism
to verify the recovery flow.

[Fix]

Apply the following commits (from linux-next):
2ecd43413d76 Documentation: qat: fix auto_reset section
7d42e097607c crypto: qat - resolve race condition during AER recovery
c2304e1a0b80 crypto: qat - change SLAs cleanup flow at shutdown
9567d3dc7609 crypto: qat - improve aer error reset handling
750fa7c20e60 crypto: qat - limit heartbeat notifications
f5419a4239af crypto: qat - add auto reset on error
2aaa1995a94a crypto: qat - add fatal error notification
4469f9b23468 crypto: qat - re-enable sriov after pf reset
ec26f8e6c784 crypto: qat - update PFVF protocol for recovery
758a0087db98 crypto: qat - disable arbitration before reset
ae508d7afb75 crypto: qat - add fatal error notify method
e2b67859ab6e crypto: qat - add heartbeat error simulator

[Regression potential]

We may experience qat regression when crashing or restarting the
module.

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