[Bugfix] Fix Typo from NVFP4 Refactor (#31977)

Signed-off-by: Robert Shaw <robshaw@redhat.com>
Co-authored-by: Robert Shaw <robshaw@redhat.com>

tests/evals/gsm8k/configs/moe-refactor-dp-ep/Qwen3-30B-A3B-NvFp4-CT-fi-cutedsl-deepep-ll.yaml

+model_name: "RedHatAI/Qwen3-30B-A3B-NVFP4"
+accuracy_threshold: 0.88
+num_questions: 1319
+num_fewshot: 5
+server_args: "--enforce-eager --max-model-len 8192 --data-parallel-size 2 --enable-expert-parallel --all2all-backend deepep_low_latency"
+env:
+  VLLM_USE_FLASHINFER_MOE_FP4: "1"
+  VLLM_FLASHINFER_MOE_BACKEND: "masked_gemm"

tests/evals/gsm8k/configs/moe-refactor-dp-ep/Qwen3-30B-A3B-NvFp4-ModelOpt-fi-cutedsl-deepep-ll.yaml

+model_name: "nvidia/Qwen3-30B-A3B-NVFP4"
+accuracy_threshold: 0.88
+num_questions: 1319
+num_fewshot: 5
+server_args: "--enforce-eager --max-model-len 8192 --data-parallel-size 2 --enable-expert-parallel --all2all-backend deepep_low_latency"
+env:
+  VLLM_USE_FLASHINFER_MOE_FP4: "1"
+  VLLM_FLASHINFER_MOE_BACKEND: "masked_gemm"

tests/evals/gsm8k/configs/moe-refactor-dp-ep/Qwen3-30B-A3B-NvFp4-ModelOpt-fi-cutlass.yaml

+model_name: "nvidia/Qwen3-30B-A3B-NVFP4"
+accuracy_threshold: 0.88
+num_questions: 1319
+num_fewshot: 5
+server_args: "--enforce-eager --max-model-len 8192 --data-parallel-size 2 --enable-expert-parallel"
+env:
+  VLLM_USE_FLASHINFER_MOE_FP4: "1"
+  VLLM_FLASHINFER_MOE_BACKEND: "throughput"

tests/evals/gsm8k/configs/moe-refactor-dp-ep/config-b200.txt

+Qwen3-30B-A3B-NvFp4-CT-fi-cutedsl-deepep-ll.yaml
+Qwen3-30B-A3B-NvFp4-ModelOpt-fi-cutedsl-deepep-ll.yaml
+Qwen3-30B-A3B-NvFp4-CT-fi-cutlass.yaml
+Qwen3-30B-A3B-NvFp4-ModelOpt-fi-cutlass.yaml
 Qwen3-30B-A3B-Fp8-AutoFp8-deepgemm-deepep-ht.yaml
 Qwen3-30B-A3B-Fp8-AutoFp8-deepgemm-deepep-ll.yaml
 Qwen3-30B-A3B-Fp8-AutoFp8-deepgemm.yaml
 Qwen3-30B-A3B-Fp8-CT-Block-deepgemm-deepep-ht.yaml
 Qwen3-30B-A3B-Fp8-CT-Block-deepgemm-deepep-ll.yaml
 Qwen3-30B-A3B-Fp8-CT-Block-deepgemm.yaml
-Qwen3-30B-A3B-NvFp4-CT-fi-cutlass.yaml
-Qwen3-30B-A3B-NvFp4-ModelOpt-fi-cutlass-fi-a2av.yaml

tests/evals/gsm8k/configs/moe-refactor/config-test.txt

+Qwen3-30B-A3B-NvFp4-CT-marlin.yaml
\ No newline at end of file

vllm/model_executor/layers/quantization/utils/flashinfer_fp4_moe.py

@@ -456,7 +456,7 @@ def prepare_nvfp4_moe_layer_for_fi_or_cutlass(
         NvFp4MoeBackend.VLLM_CUTLASS,
         NvFp4MoeBackend.FLASHINFER_CUTLASS,
         NvFp4MoeBackend.FLASHINFER_TRTLLM,
-        NvFp4MoeBackend.FLASHINFER_TRTLLM,
+        NvFp4MoeBackend.FLASHINFER_CUTEDSL,
     ]
 
     # Reorder [w1, w3] to [w3, w1] for FI NVFP4 MoE kernels.