Kernel Platform Worker Support

[nibanks]

Description

Extracts/refactors some of the code in #4023 to support platform worker threads, which is a prereq for kernel xdp support.

Testing

CI/CD

Documentation

N/A

[codecov]

Codecov Report

Attention: Patch coverage is 50.00000% with 1 line in your changes missing coverage. Please review.

Project coverage is 87.00%. Comparing base (2e4a9f0) to head (a458629).
Report is 13 commits behind head on main.

Files with missing lines	Patch %	Lines
src/core/worker.c	50.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4605      +/-   ##
==========================================
- Coverage   87.45%   87.00%   -0.45%     
==========================================
  Files          59       59              
  Lines       18048    18061      +13     
==========================================
- Hits        15783    15714      -69     
- Misses       2265     2347      +82     

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[nibanks]

Looks like the kernel BVTs are crashing. I will try to investigate later.

[nibanks]

Something seems broken in netperf runs. I can't tell if it's because of this or not. Needs to be investigated before merging.

[ami-GS]

Is the netperf result reliable? wsk related failure is really few. others are more

[nibanks]

Converted this back to draft, because we need to switch to using NtCreateIoCompletion, NtSetIoCompletion, and NtRemoveIoCompletionEx.

[mtfriesen]

Converted this back to draft, because we need to switch to using NtCreateIoCompletion, NtSetIoCompletion, and NtRemoveIoCompletionEx.

I suggest using the Zw variants for KM, unless QUIC is calling on behalf of the user mode thread calling QUIC, and all in the same thread context.