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Use all CPUs by reprogramming VF RSS #4857

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Use all CPUs by reprogramming VF RSS #4857

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mtfriesen
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@mtfriesen mtfriesen commented Feb 25, 2025

Description

Describe the purpose of and changes within this Pull Request.

  • Bind XDP directly to the virtual function (VF) driver for SR-IOV adapters.
  • Configure XDP to use all available CPUs for RSS indications on the VF.
  • Add knobs to make the above behavior(s) opt-in.

Resolves #3524

Testing

Do any existing tests cover this change? Are new tests needed?

Documentation

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codecov bot commented Feb 25, 2025

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 86.88%. Comparing base (dcb20cf) to head (ec64af8).
Report is 11 commits behind head on main.

Additional details and impacted files
@@            Coverage Diff             @@
##             main    #4857      +/-   ##
==========================================
+ Coverage   86.16%   86.88%   +0.71%     
==========================================
  Files          56       56              
  Lines       17634    17630       -4     
==========================================
+ Hits        15195    15317     +122     
+ Misses       2439     2313     -126     

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@mtfriesen mtfriesen changed the title Bind XDP directly to VF if available Use all CPUs by reprogramming VF RSS Feb 27, 2025
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Successfully merging this pull request may close these issues.

XDP should use all available logical processors for user mode operation
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