[Misc] Improve error messages for unsupported types and parameters (#30593)

Signed-off-by: BlankR <hjyblanche@gmail.com> Co-authored-by: Wentao Ye <44945378+yewentao256@users.noreply.github.com>
2026-01-07 01:00:16 -08:00
parent 1f33e38e81
commit 0790f07695
11 changed files with 40 additions and 16 deletions
--- a/vllm/model_executor/layers/quantization/mxfp4.py
+++ b/vllm/model_executor/layers/quantization/mxfp4.py
@@ -783,7 +783,10 @@ class Mxfp4MoEMethod(FusedMoEMethodBase):
            layer.w13_weight = w13_weight
            layer.w2_weight = w2_weight
        else:
-            raise ValueError(f"Unsupported backend: {self.mxfp4_backend}")
+            raise ValueError(
+                f"Unsupported mxfp4_backend: {self.mxfp4_backend}: "
+                f"should be one of: {list(Mxfp4Backend)}."
+            )

    def get_fused_moe_quant_config(
        self, layer: torch.nn.Module