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refactor: Remove legacy PrefillDecode routing mode#67

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refactor/remove-legacy-pd-mode
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refactor: Remove legacy PrefillDecode routing mode#67
jdw2159 wants to merge 1 commit into
mainfrom
refactor/remove-legacy-pd-mode

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@jdw2159 jdw2159 commented Jan 22, 2026

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Consolidate prefill-decode routing by removing the old PrefillDecode mode in favor of VllmPrefillDecode. This simplifies the codebase by having a single, vLLM-optimized implementation for P/D disaggregation.

  • Remove PrefillDecode variant from RoutingMode enum
  • Delete src/routers/http/pd_router.rs and src/routers/grpc/pd_router.rs
  • Update tests to use VllmPrefillDecode
  • Simplify router factory and validation logic

Consolidate prefill-decode routing by removing the old PrefillDecode
mode in favor of VllmPrefillDecode. This simplifies the codebase by
having a single, vLLM-optimized implementation for P/D disaggregation.

- Remove PrefillDecode variant from RoutingMode enum
- Delete src/routers/http/pd_router.rs and src/routers/grpc/pd_router.rs
- Update tests to use VllmPrefillDecode
- Simplify router factory and validation logic
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