[6/N] MoE Refactor: Cleanup MoE-related configs (#8849)

python/sglang/srt/layers/quantization/base_config.py

@@ -9,6 +9,7 @@ import torch
 from torch import nn
 
 if TYPE_CHECKING:
+    from sglang.srt.layers.moe.moe_runner import MoeRunnerConfig
     from sglang.srt.layers.moe.topk import TopKOutput
 
 
@@ -100,12 +101,7 @@ class FusedMoEMethodBase(QuantizeMethodBase):
         layer: torch.nn.Module,
         x: torch.Tensor,
         topk_output: TopKOutput,
-        *,
-        activation: str = "silu",
-        apply_router_weight_on_input: bool = False,
-        inplace: bool = True,
-        no_combine: bool = False,
-        routed_scaling_factor: Optional[float] = None,
+        moe_runner_config: MoeRunnerConfig,
     ) -> torch.Tensor:
         raise NotImplementedError
 

python/sglang/srt/layers/quantization/blockwise_int8.py

@@ -3,7 +3,7 @@
 from __future__ import annotations
 
 import logging
-from typing import TYPE_CHECKING, Any, Callable, Dict, List, Optional
+from typing import TYPE_CHECKING, Any, Dict, List, Optional
 
 import torch
 from torch.nn import Module
@@ -22,6 +22,7 @@ from sglang.srt.layers.quantization.utils import is_layer_skipped
 from sglang.srt.utils import set_weight_attrs
 
 if TYPE_CHECKING:
+    from sglang.srt.layers.moe.moe_runner import MoeRunnerConfig
     from sglang.srt.layers.moe.topk import TopKOutput
 
 ACTIVATION_SCHEMES = ["static", "dynamic"]
@@ -348,12 +349,7 @@ class BlockInt8MoEMethod(FusedMoEMethodBase):
         layer: torch.nn.Module,
         x: torch.Tensor,
         topk_output: TopKOutput,
-        *,
-        activation: str = "silu",
-        apply_router_weight_on_input: bool = False,
-        inplace: bool = True,
-        no_combine: bool = False,
-        routed_scaling_factor: Optional[float] = None,
+        moe_runner_config: MoeRunnerConfig,
     ) -> torch.Tensor:
         from sglang.srt.layers.moe.fused_moe_triton.fused_moe import fused_experts
 
@@ -363,15 +359,11 @@ class BlockInt8MoEMethod(FusedMoEMethodBase):
             layer.w13_weight,
             layer.w2_weight,
             topk_output=topk_output,
-            inplace=inplace,
-            activation=activation,
-            apply_router_weight_on_input=apply_router_weight_on_input,
+            moe_runner_config=moe_runner_config,
             use_int8_w8a8=True,
             w1_scale=(layer.w13_weight_scale_inv),
             w2_scale=(layer.w2_weight_scale_inv),
             a1_scale=layer.w13_input_scale,
             a2_scale=layer.w2_input_scale,
             block_shape=self.quant_config.weight_block_size,
-            no_combine=no_combine,
-            routed_scaling_factor=routed_scaling_factor,
         )

python/sglang/srt/layers/quantization/compressed_tensors/compressed_tensors_moe.py

@@ -23,6 +23,7 @@ from sglang.srt.utils import is_cpu, is_cuda, is_hip, is_npu, set_weight_attrs
 
 if TYPE_CHECKING:
     from sglang.srt.layers.moe.fused_moe_triton import FusedMoE
+    from sglang.srt.layers.moe.moe_runner import MoeRunnerConfig
     from sglang.srt.layers.moe.topk import TopKOutput
     from sglang.srt.layers.quantization.compressed_tensors.compressed_tensors import (
         CompressedTensorsConfig,
@@ -269,12 +270,7 @@ class CompressedTensorsW8A8Fp8MoEMethod(CompressedTensorsMoEMethod):
         layer: torch.nn.Module,
         x: torch.Tensor,
         topk_output: TopKOutput,
-        *,
-        activation: str = "silu",
-        apply_router_weight_on_input: bool = False,
-        inplace: bool = True,
-        no_combine: bool = False,
-        routed_scaling_factor: Optional[float] = None,
+        moe_runner_config: MoeRunnerConfig,
     ) -> torch.Tensor:
         from sglang.srt.layers.moe.fused_moe_triton import fused_experts
 
@@ -283,8 +279,7 @@ class CompressedTensorsW8A8Fp8MoEMethod(CompressedTensorsMoEMethod):
             layer.w13_weight,
             layer.w2_weight,
             topk_output=topk_output,
-            inplace=inplace,
-            activation=activation,
+            moe_runner_config=moe_runner_config,
             use_fp8_w8a8=True,
             per_channel_quant=self.weight_quant.strategy
             == QuantizationStrategy.CHANNEL,
@@ -292,8 +287,6 @@ class CompressedTensorsW8A8Fp8MoEMethod(CompressedTensorsMoEMethod):
             w2_scale=layer.w2_weight_scale,
             a1_scale=layer.w13_input_scale,
             a2_scale=layer.w2_input_scale,
-            apply_router_weight_on_input=apply_router_weight_on_input,
-            routed_scaling_factor=routed_scaling_factor,
         )
 
 
@@ -601,12 +594,12 @@ class CompressedTensorsWNA16MoEMethod(CompressedTensorsMoEMethod):
         layer: torch.nn.Module,
         x: torch.Tensor,
         topk_output: TopKOutput,
-        *,
-        activation: str = "silu",
-        **kwargs,
+        moe_runner_config: MoeRunnerConfig,
     ) -> torch.Tensor:
 
-        assert activation == "silu", "Only SiLU activation is supported."
+        assert (
+            moe_runner_config.activation == "silu"
+        ), "Only SiLU activation is supported."
 
         topk_weights, topk_ids, router_logits = topk_output
 

python/sglang/srt/layers/quantization/fp4.py

@@ -41,6 +41,7 @@ from sglang.srt.utils import (
 )
 
 if TYPE_CHECKING:
+    from sglang.srt.layers.moe.moe_runner import MoeRunnerConfig
     from sglang.srt.layers.moe.topk import TopKOutput
 
 logger = logging.getLogger(__name__)
@@ -220,22 +221,10 @@ class MxFp4LinearMethod(LinearMethodBase):
             return out
 
 
-class MxFp4MoEMethod:
-    def __new__(cls, *args, **kwargs):
-        if not hasattr(cls, "_initialized"):
-            original_init = cls.__init__
-            new_cls = type(
-                cls.__name__,
-                (FusedMoEMethodBase,),
-                {
-                    "__init__": original_init,
-                    **{k: v for k, v in cls.__dict__.items() if k != "__dict__"},
-                },
-            )
-            obj = super(new_cls, new_cls).__new__(new_cls)
-            obj.__init__(*args, **kwargs)
-            return obj
-        return super().__new__(cls)
+class MxFp4MoEMethod(FusedMoEMethodBase):
+
+    def __init__(self, quant_config: Mxfp4Config):
+        self.quant_config = quant_config
 
     @staticmethod
     def get_moe_method(
@@ -364,12 +353,7 @@ class W4A4MXFp4MoEDynamicMethod(MxFp4MoEMethod):
         layer: torch.nn.Module,
         x: torch.Tensor,
         topk_output: TopKOutput,
-        *,
-        activation: str = "silu",
-        apply_router_weight_on_input: bool = False,
-        inplace: bool = True,
-        no_combine: bool = False,
-        routed_scaling_factor: Optional[float] = None,
+        moe_runner_config: MoeRunnerConfig,
     ) -> torch.Tensor:
         topk_weights, topk_ids, _ = topk_output
 
@@ -383,7 +367,9 @@ class W4A4MXFp4MoEDynamicMethod(MxFp4MoEMethod):
             w1_scale=layer.w13_weight_scale,
             w2_scale=layer.w2_weight_scale,
             activation=(
-                ActivationType.Silu if activation == "silu" else ActivationType.Gelu
+                ActivationType.Silu
+                if moe_runner_config.activation == "silu"
+                else ActivationType.Gelu
             ),
             doweight_stage1=False,
         )
@@ -497,12 +483,7 @@ class W4A4MXFp4MoEStaticMethod(MxFp4MoEMethod):
         layer: torch.nn.Module,
         x: torch.Tensor,
         topk_output: TopKOutput,
-        *,
-        activation: str = "silu",
-        apply_router_weight_on_input: bool = False,
-        inplace: bool = True,
-        no_combine: bool = False,
-        routed_scaling_factor: Optional[float] = None,
+        moe_runner_config: MoeRunnerConfig,
     ) -> torch.Tensor:
         topk_weights, topk_ids, _ = topk_output
 
@@ -516,7 +497,9 @@ class W4A4MXFp4MoEStaticMethod(MxFp4MoEMethod):
             w1_scale=layer.w13_weight_scale,
             w2_scale=layer.w2_weight_scale,
             activation=(
-                ActivationType.Silu if activation == "silu" else ActivationType.Gelu
+                ActivationType.Silu
+                if moe_runner_config.activation == "silu"
+                else ActivationType.Gelu
             ),
             doweight_stage1=False,
         )

python/sglang/srt/layers/quantization/fp8.py

@@ -79,6 +79,7 @@ from sglang.srt.utils import (
 )
 
 if TYPE_CHECKING:
+    from sglang.srt.layers.moe.moe_runner import MoeRunnerConfig
     from sglang.srt.layers.moe.topk import TopKOutput
     from sglang.srt.layers.quantization.w4afp8 import W4AFp8Config
 
@@ -982,12 +983,7 @@ class Fp8MoEMethod(FusedMoEMethodBase):
         layer: torch.nn.Module,
         x: torch.Tensor,
         topk_output: TopKOutput,
-        *,
-        activation: str = "silu",
-        apply_router_weight_on_input: bool = False,
-        inplace: bool = True,
-        no_combine: bool = False,
-        routed_scaling_factor: Optional[float] = None,
+        moe_runner_config: MoeRunnerConfig,
     ) -> torch.Tensor:
         from sglang.srt.layers.moe.fused_moe_triton.fused_moe import fused_experts
 
@@ -996,7 +992,7 @@ class Fp8MoEMethod(FusedMoEMethodBase):
 
             topk_weights, topk_ids, _ = topk_output
             x, topk_weights = apply_topk_weights_cpu(
-                apply_router_weight_on_input, topk_weights, x
+                moe_runner_config.apply_router_weight_on_input, topk_weights, x
             )
 
             return torch.ops.sgl_kernel.fused_experts_cpu(
@@ -1021,8 +1017,8 @@ class Fp8MoEMethod(FusedMoEMethodBase):
                 layer,
                 x,
                 topk_output,
-                activation,
-                no_combine,
+                moe_runner_config.activation,
+                moe_runner_config.no_combine,
             )
             if ret is not None:
                 return ret
@@ -1060,8 +1056,8 @@ class Fp8MoEMethod(FusedMoEMethodBase):
                 use_fp8_blockscale=True,
             )
             # TODO: Fuse into select_experts
-            if routed_scaling_factor is not None:
-                output *= routed_scaling_factor
+            if moe_runner_config.routed_scaling_factor is not None:
+                output *= moe_runner_config.routed_scaling_factor
             return output
         # Expert fusion with FP8 quantization
         return fused_experts(
@@ -1069,9 +1065,7 @@ class Fp8MoEMethod(FusedMoEMethodBase):
             layer.w13_weight,
             layer.w2_weight,
             topk_output=topk_output,
-            inplace=inplace and not no_combine,
-            activation=activation,
-            apply_router_weight_on_input=apply_router_weight_on_input,
+            moe_runner_config=moe_runner_config,
             use_fp8_w8a8=True,
             w1_scale=(
                 layer.w13_weight_scale_inv
@@ -1084,26 +1078,32 @@ class Fp8MoEMethod(FusedMoEMethodBase):
             a1_scale=layer.w13_input_scale,
             a2_scale=layer.w2_input_scale,
             block_shape=self.quant_config.weight_block_size,
-            no_combine=no_combine,
-            routed_scaling_factor=routed_scaling_factor,
         )
 
     def apply_with_router_logits(
         self,
         layer: torch.nn.Module,
         x: torch.Tensor,
-        router_logits: torch.Tensor,
-        *,
-        activation: str = "silu",
-        routed_scaling_factor: Optional[float] = None,
+        topk_output: TopKOutput,
+        moe_runner_config: MoeRunnerConfig,
     ) -> torch.Tensor:
+
+        activation = moe_runner_config.activation
+        routed_scaling_factor = moe_runner_config.routed_scaling_factor
+
+        from flashinfer.fused_moe import trtllm_fp8_block_scale_moe
+
+        from sglang.srt.layers.moe.topk import TopKOutputChecker
+
+        assert TopKOutputChecker.format_is_bypassed(topk_output)
+        router_logits = topk_output.router_logits
+        topk_config = topk_output.topk_config
         assert (
             activation == "silu"
         ), "Only silu is supported for flashinfer blockscale fp8 moe"
         a_q, a_sf = per_token_group_quant_fp8(x, self.quant_config.weight_block_size[1])
         # NOTE: scales of hidden states have to be transposed!
         a_sf_t = a_sf.t().contiguous()
-        from flashinfer.fused_moe import trtllm_fp8_block_scale_moe
 
         return trtllm_fp8_block_scale_moe(
             routing_logits=router_logits.to(torch.float32),
@@ -1115,9 +1115,9 @@ class Fp8MoEMethod(FusedMoEMethodBase):
             gemm2_weights=layer.w2_weight,
             gemm2_weights_scale=layer.w2_weight_scale_inv,
             num_experts=layer.num_experts,
-            top_k=layer.top_k,
-            n_group=layer.num_expert_group,
-            topk_group=layer.topk_group,
+            top_k=topk_config.top_k,
+            n_group=topk_config.num_expert_group,
+            topk_group=topk_config.topk_group,
             intermediate_size=layer.w2_weight.shape[2],
             local_expert_offset=layer.moe_ep_rank * layer.num_local_experts,
             local_num_experts=layer.num_local_experts,

python/sglang/srt/layers/quantization/fp8_utils.py

@@ -113,6 +113,7 @@ def normalize_e4m3fn_to_e4m3fnuz(
     return weight, weight_scale, input_scale
 
 
+# TODO(ch-wan): define these backends in --moe-runner-backend
 def cutlass_block_fp8_supported() -> bool:
     if not get_bool_env_var("SGLANG_SUPPORT_CUTLASS_BLOCK_FP8"):
         return False

python/sglang/srt/layers/quantization/gptq.py

@@ -44,6 +44,7 @@ from sglang.srt.layers.quantization.utils import (
 )
 
 if TYPE_CHECKING:
+    from sglang.srt.layers.moe.moe_runner import MoeRunnerConfig
     from sglang.srt.layers.moe.topk import TopKOutput
 
 from sglang.srt.utils import is_cuda
@@ -1056,13 +1057,13 @@ class GPTQMarlinMoEMethod(FusedMoEMethodBase):
         layer: torch.nn.Module,
         x: torch.Tensor,
         topk_output: TopKOutput,
-        *,
-        activation: str = "silu",
-        **kwargs,
+        moe_runner_config: MoeRunnerConfig,
     ) -> torch.Tensor:
         # Delay the import to avoid circular dependency
 
-        assert activation == "silu", "Only SiLU activation is supported."
+        assert (
+            moe_runner_config.activation == "silu"
+        ), "Only SiLU activation is supported."
 
         # The input must currently be float16
         orig_dtype = x.dtype

python/sglang/srt/layers/quantization/marlin_utils.py

@@ -28,6 +28,7 @@ from sglang.srt.utils import get_device_capability, is_cuda
 
 if TYPE_CHECKING:
     from sglang.srt.layers.linear import LinearBase
+    from sglang.srt.layers.moe.fused_moe_triton.layer import FusedMoE
 
 try:
     from vllm import _custom_ops as ops
@@ -216,13 +217,13 @@ def check_marlin_supports_layer(layer: LinearBase, group_size: int) -> bool:
     )[0]
 
 
-def check_moe_marlin_supports_layer(layer: LinearBase, group_size: int) -> bool:
+def check_moe_marlin_supports_layer(layer: FusedMoE, group_size: int) -> bool:
     hidden_size = layer.hidden_size
     intermediate_size_per_partition = layer.intermediate_size_per_partition
     # apply_router_weight_on_input is not supported for moe marlin
-    supports_router_weight = not layer.apply_router_weight_on_input
+    supports_router_weight = not layer.moe_runner_config.apply_router_weight_on_input
     # moe marlin requires the activation to be silu
-    supports_activation = layer.activation == "silu"
+    supports_activation = layer.moe_runner_config.activation == "silu"
 
     # gate-up: (n, k) = (intermediate_size_per_partition * 2, hidden_size)
     # down: (n, k) = (hidden_size, intermediate_size_per_partition)

python/sglang/srt/layers/quantization/modelopt_quant.py

@@ -7,8 +7,8 @@ from typing import TYPE_CHECKING, Any, Dict, List, Optional
 import torch
 from torch.nn.parameter import Parameter
 
+from sglang.srt.layers.moe import should_use_flashinfer_trtllm_moe
 from sglang.srt.layers.moe.cutlass_moe_params import CutlassMoEParams, CutlassMoEType
-from sglang.srt.layers.moe.utils import should_use_flashinfer_trtllm_moe
 from sglang.srt.layers.parameter import ModelWeightParameter, PerTensorScaleParameter
 from sglang.srt.layers.quantization.base_config import (
     FusedMoEMethodBase,
@@ -30,10 +30,11 @@ from sglang.srt.layers.quantization.utils import (
     requantize_with_max_scale,
 )
 from sglang.srt.layers.radix_attention import RadixAttention
-from sglang.srt.managers.schedule_batch import global_server_args_dict
 from sglang.srt.utils import is_cuda, next_power_of_2
 
 if TYPE_CHECKING:
+    from sglang.srt.layers.moe.fused_moe_triton.layer import FusedMoE
+    from sglang.srt.layers.moe.moe_runner import MoeRunnerConfig
     from sglang.srt.layers.moe.topk import TopKOutput
 
 if is_cuda():
@@ -422,12 +423,7 @@ class ModelOptFp8MoEMethod(FusedMoEMethodBase):
         layer: torch.nn.Module,
         x: torch.Tensor,
         topk_output: TopKOutput,
-        *,
-        activation: str = "silu",
-        apply_router_weight_on_input: bool = False,
-        inplace: bool = True,
-        no_combine: bool = False,
-        routed_scaling_factor: Optional[float] = None,
+        moe_runner_config: MoeRunnerConfig,
     ) -> torch.Tensor:
         from sglang.srt.layers.moe.fused_moe_triton.fused_moe import fused_experts
 
@@ -436,15 +432,13 @@ class ModelOptFp8MoEMethod(FusedMoEMethodBase):
             layer.w13_weight,
             layer.w2_weight,
             topk_output=topk_output,
-            inplace=inplace,
-            activation=activation,
+            moe_runner_config=moe_runner_config,
             use_fp8_w8a8=True,
             per_channel_quant=False,  # ModelOpt uses per-tensor quantization
             w1_scale=layer.w13_weight_scale,
             w2_scale=layer.w2_weight_scale,
             a1_scale=layer.w13_input_scale,
             a2_scale=layer.w2_input_scale,
-            no_combine=no_combine,
         )
 
 
@@ -741,8 +735,10 @@ class ModelOptNvFp4FusedMoEMethod(FusedMoEMethodBase):
 
     @property
     def enable_flashinfer_cutlass_moe(self) -> bool:
+        from sglang.srt.layers.moe import get_moe_runner_backend
+
         """Access the global enable_flashinfer_cutlass_moe setting."""
-        return global_server_args_dict.get("enable_flashinfer_cutlass_moe", False)
+        return get_moe_runner_backend().is_flashinfer_cutlass()
 
     def create_weights(
         self,
@@ -1160,21 +1156,14 @@ class ModelOptNvFp4FusedMoEMethod(FusedMoEMethodBase):
 
     def apply(
         self,
-        layer: torch.nn.Module,
+        layer: FusedMoE,
         x: torch.Tensor,
         topk_output: TopKOutput,
-        *,
-        activation: str = "silu",
-        apply_router_weight_on_input: bool = False,
-        inplace: bool = True,
-        no_combine: bool = False,
-        routed_scaling_factor: Optional[float] = None,
-        ep_rank: Optional[int] = None,
-        ep_size: Optional[int] = None,
-        tp_rank: Optional[int] = None,
-        tp_size: Optional[int] = None,
+        moe_runner_config: MoeRunnerConfig,
     ) -> torch.Tensor:
-        assert activation == "silu", "Only SiLU activation is supported."
+        assert (
+            moe_runner_config.activation == "silu"
+        ), "Only SiLU activation is supported."
 
         # Check if this is a FlashInferFP4MoE layer that should handle its own forward
         if hasattr(layer, "gemm1_weights_fp4_shuffled"):
@@ -1183,7 +1172,7 @@ class ModelOptNvFp4FusedMoEMethod(FusedMoEMethodBase):
 
         if self.enable_flashinfer_cutlass_moe:
             assert (
-                not apply_router_weight_on_input
+                not moe_runner_config.apply_router_weight_on_input
             ), "apply_router_weight_on_input is not supported for Flashinfer"
             # TRTLLM Cutlass moe takes in activations in BF16/Half/nvfp4 precision
             # and fp4 quantized weights loaded from the checkpoint
@@ -1205,14 +1194,14 @@ class ModelOptNvFp4FusedMoEMethod(FusedMoEMethodBase):
                     layer.w2_blockscale_swizzled.view(torch.int32),
                     layer.g2_alphas,
                 ],
-                ep_size=ep_size,
-                ep_rank=ep_rank,
-                tp_size=tp_size,
-                tp_rank=tp_rank,
+                ep_size=layer.moe_ep_size,
+                ep_rank=layer.moe_ep_rank,
+                tp_size=layer.moe_tp_size,
+                tp_rank=layer.moe_tp_rank,
                 tune_max_num_tokens=next_power_of_2(x.shape[0]),
             )[0]
-            if routed_scaling_factor is not None:
-                output *= routed_scaling_factor
+            if moe_runner_config.routed_scaling_factor is not None:
+                output *= moe_runner_config.routed_scaling_factor
             return output
 
         from sglang.srt.layers.moe.cutlass_moe import cutlass_moe_fp4
@@ -1231,8 +1220,8 @@ class ModelOptNvFp4FusedMoEMethod(FusedMoEMethodBase):
             topk_weights=topk_weights,
             topk_ids=topk_ids,
             params=layer.cutlass_moe_params,
-            apply_router_weight_on_input=apply_router_weight_on_input,
+            apply_router_weight_on_input=moe_runner_config.apply_router_weight_on_input,
         ).to(x.dtype)
-        if routed_scaling_factor is not None:
-            output *= routed_scaling_factor
+        if moe_runner_config.routed_scaling_factor is not None:
+            output *= moe_runner_config.routed_scaling_factor
         return output

python/sglang/srt/layers/quantization/moe_wna16.py

@@ -22,6 +22,7 @@ from sglang.srt.utils import get_device_capability, set_weight_attrs
 logger = logging.getLogger(__name__)
 
 if TYPE_CHECKING:
+    from sglang.srt.layers.moe.moe_runner import MoeRunnerConfig
     from sglang.srt.layers.moe.topk import TopKOutput
 
 
@@ -353,17 +354,14 @@ class MoeWNA16Method(FusedMoEMethodBase):
         layer: torch.nn.Module,
         x: torch.Tensor,
         topk_output: TopKOutput,
-        *,
-        activation: str = "silu",
-        apply_router_weight_on_input: bool = False,
-        inplace: bool = True,
-        no_combine: bool = False,
-        routed_scaling_factor: Optional[float] = None,
+        moe_runner_config: MoeRunnerConfig,
     ) -> torch.Tensor:
         # avoid circular import
         from sglang.srt.layers.moe.fused_moe_triton.fused_moe import fused_experts
 
-        assert activation == "silu", "Only SiLU activation is supported."
+        assert (
+            moe_runner_config.activation == "silu"
+        ), "Only SiLU activation is supported."
 
         weight_bits = self.quant_config.weight_bits
         has_zp = self.quant_config.has_zp
@@ -373,8 +371,7 @@ class MoeWNA16Method(FusedMoEMethodBase):
             layer.w13_qweight,
             layer.w2_qweight,
             topk_output=topk_output,
-            inplace=inplace,
-            apply_router_weight_on_input=apply_router_weight_on_input,
+            moe_runner_config=moe_runner_config,
             use_int4_w4a16=weight_bits == 4,
             use_int8_w8a16=weight_bits == 8,
             w1_scale=layer.w13_scales,
@@ -382,8 +379,6 @@ class MoeWNA16Method(FusedMoEMethodBase):
             w1_zp=layer.w13_qzeros if has_zp else None,
             w2_zp=layer.w2_qzeros if has_zp else None,
             block_shape=[0, layer.group_size],
-            no_combine=no_combine,
-            routed_scaling_factor=routed_scaling_factor,
         )
 
     @staticmethod
@@ -486,16 +481,16 @@ class MoeWNA16Method(FusedMoEMethodBase):
                 )
 
             if "w13_qzeros" in weight_name:
-                tensor = loaded_weight.view(layer.tp_size, -1, loaded_weight.size(1))[
-                    tp_rank
-                ]
+                tensor = loaded_weight.view(
+                    layer.moe_tp_size, -1, loaded_weight.size(1)
+                )[tp_rank]
                 if shard_id == "w1":
                     param.data[expert_id, : shard_size // 2] = tensor
                 else:
                     param.data[expert_id, shard_size // 2 :] = tensor
             elif "w2_qzeros" in weight_name:
                 param.data[expert_id] = loaded_weight.view(
-                    loaded_weight.size(0), layer.tp_size, -1
+                    loaded_weight.size(0), layer.moe_tp_size, -1
                 )[:, tp_rank]
             else:
                 weight_loader(param, loaded_weight, weight_name, shard_id, expert_id)

python/sglang/srt/layers/quantization/mxfp4.py

@@ -16,14 +16,13 @@
 
 from __future__ import annotations
 
-import importlib.util
 import logging
 from typing import TYPE_CHECKING, List, Optional
 
 import torch
-import triton.language as tl
 from torch.nn.parameter import Parameter
 
+from sglang.srt.layers.moe.utils import get_moe_runner_backend
 from sglang.srt.layers.quantization.base_config import (
     FusedMoEMethodBase,
     QuantizationConfig,
@@ -31,7 +30,6 @@ from sglang.srt.layers.quantization.base_config import (
 )
 from sglang.srt.layers.quantization.utils import is_layer_skipped
 from sglang.srt.layers.utils import is_sm100_supported
-from sglang.srt.managers.schedule_batch import global_server_args_dict
 from sglang.srt.utils import (
     direct_register_custom_op,
     get_bool_env_var,
@@ -60,6 +58,7 @@ if is_flashinfer_available():
 logger = logging.getLogger(__name__)
 
 if TYPE_CHECKING:
+    from sglang.srt.layers.moe.moe_runner import MoeRunnerConfig
     from sglang.srt.layers.moe.topk import TopKOutput
 
 OCP_MX_BLOCK_SIZE = 32
@@ -218,15 +217,13 @@ class Mxfp4MoEMethod(FusedMoEMethodBase):
         self,
         prefix: str,
     ):
-        from sglang.srt.managers.schedule_batch import global_server_args_dict
-
         super().__init__()
 
         self.prefix = prefix
         self.topk_indices_dtype = None
-        self.use_triton_kernels = global_server_args_dict["enable_triton_kernel_moe"]
+        self.use_triton_kernels = get_moe_runner_backend().is_triton_kernel()
         self.with_bias = False
-        self.use_flashinfer = global_server_args_dict["enable_flashinfer_mxfp4_moe"]
+        self.use_flashinfer = get_moe_runner_backend().is_flashinfer_mxfp4()
 
         self.triton_kernel_moe_forward = None
         self.triton_kernel_moe_with_bias_forward = None
@@ -348,6 +345,7 @@ class Mxfp4MoEMethod(FusedMoEMethodBase):
                 logger,
                 f"Shuffling MoE weights for FlashInfer MXFP4 moe kernel (layer: {self.prefix}), it might take a while...",
             )
+            # TODO: these values are hardcoded for now, we need to get them from the model
             layer.gemm1_alpha = Parameter(
                 torch.tensor([1.702] * self.num_experts, dtype=torch.float32).cuda(),
                 requires_grad=False,
@@ -573,14 +571,7 @@ class Mxfp4MoEMethod(FusedMoEMethodBase):
         layer: torch.nn.Module,
         x: torch.Tensor,
         topk_output: TopKOutput,
-        *,
-        activation: str = "silu",
-        apply_router_weight_on_input: bool = False,
-        inplace: bool = True,
-        no_combine: bool = False,
-        routed_scaling_factor: Optional[float] = None,
-        activation_alpha: Optional[float] = None,
-        swiglu_limit: Optional[float] = None,
+        moe_runner_config: MoeRunnerConfig,
     ) -> torch.Tensor:
         if self.use_flashinfer:
             # Based on profiling results, we need to quantize x to mxfp8 here to achieve better performance
@@ -637,9 +628,7 @@ class Mxfp4MoEMethod(FusedMoEMethodBase):
                     b1=layer.w13_weight_bias,
                     b2=layer.w2_weight_bias,
                     topk_output=topk_output,
-                    activation=activation,
-                    activation_alpha=activation_alpha,
-                    swiglu_limit=swiglu_limit,
+                    moe_runner_config=moe_runner_config,
                 )
             else:
                 return self.triton_kernel_moe_forward(
@@ -647,6 +636,7 @@ class Mxfp4MoEMethod(FusedMoEMethodBase):
                     w1=layer.w13_weight,
                     w2=layer.w2_weight,
                     topk_output=topk_output,
+                    moe_runner_config=moe_runner_config,
                 )
         else:
             from sglang.srt.layers.moe.fused_moe_triton.fused_moe import fused_experts
@@ -656,13 +646,7 @@ class Mxfp4MoEMethod(FusedMoEMethodBase):
                 w1=layer.w13_weight,
                 w2=layer.w2_weight,
                 topk_output=topk_output,
+                moe_runner_config=moe_runner_config,
                 b1=layer.w13_weight_bias,
                 b2=layer.w2_weight_bias,
-                inplace=inplace,
-                activation=activation,
-                apply_router_weight_on_input=apply_router_weight_on_input,
-                no_combine=no_combine,
-                routed_scaling_factor=routed_scaling_factor,
-                activation_alpha=activation_alpha,
-                swiglu_limit=swiglu_limit,
             )

python/sglang/srt/layers/quantization/unquant.py

 from __future__ import annotations
 
-import importlib
-from typing import TYPE_CHECKING, Callable, List, Optional
+import importlib.util
+from typing import TYPE_CHECKING, List, Optional
 
 import torch
 import torch.nn.functional as F
@@ -24,7 +24,7 @@ from sglang.srt.utils import (
 )
 
 if TYPE_CHECKING:
-    from sglang.srt.layers.moe.ep_moe.layer import EPMoE
+    from sglang.srt.layers.moe.moe_runner import MoeRunnerConfig
     from sglang.srt.layers.moe.topk import TopKOutput
 
 has_triton_kernels = importlib.util.find_spec("triton_kernels") is not None
@@ -221,31 +221,14 @@ class UnquantizedFusedMoEMethod(FusedMoEMethodBase, CustomOp):
         layer: torch.nn.Module,
         x: torch.Tensor,
         topk_output: TopKOutput,
-        *,
-        activation: str = "silu",
-        apply_router_weight_on_input: bool = False,
-        inplace: bool = True,
-        no_combine: bool = False,
-        routed_scaling_factor: Optional[float] = None,
-        activation_alpha: Optional[float] = None,
-        swiglu_limit: Optional[float] = None,
+        moe_runner_config: MoeRunnerConfig,
     ) -> torch.Tensor:
-        kwargs = {}
-        if activation_alpha is not None:
-            kwargs["activation_alpha"] = activation_alpha
-        if swiglu_limit is not None:
-            kwargs["swiglu_limit"] = swiglu_limit
 
         return self.forward(
             x=x,
             layer=layer,
             topk_output=topk_output,
-            activation=activation,
-            apply_router_weight_on_input=apply_router_weight_on_input,
-            inplace=inplace,
-            no_combine=no_combine,
-            routed_scaling_factor=routed_scaling_factor,
-            **kwargs,
+            moe_runner_config=moe_runner_config,
         )
 
     def forward_cuda(
@@ -253,18 +236,12 @@ class UnquantizedFusedMoEMethod(FusedMoEMethodBase, CustomOp):
         layer: torch.nn.Module,
         x: torch.Tensor,
         topk_output: TopKOutput,
-        *,
-        activation: str = "silu",
-        apply_router_weight_on_input: bool = False,
-        inplace: bool = True,
-        no_combine: bool = False,
-        routed_scaling_factor: Optional[float] = None,
-        activation_alpha: Optional[float] = None,
-        swiglu_limit: Optional[float] = None,
+        moe_runner_config: MoeRunnerConfig,
     ) -> torch.Tensor:
 
         if self.use_triton_kernels:
             if self.with_bias:
+                assert self.triton_kernel_moe_with_bias_forward is not None
                 return self.triton_kernel_moe_with_bias_forward(
                     hidden_states=x,
                     w1=layer.w13_weight,
@@ -272,24 +249,24 @@ class UnquantizedFusedMoEMethod(FusedMoEMethodBase, CustomOp):
                     b1=layer.w13_weight_bias,
                     b2=layer.w2_weight_bias,
                     topk_output=topk_output,
-                    activation=activation,
-                    activation_alpha=activation_alpha,
-                    swiglu_limit=swiglu_limit,
+                    moe_runner_config=moe_runner_config,
                     w1_pcg=None,
                     w2_pcg=None,
                 )
             else:
+                assert self.triton_kernel_moe_forward is not None
                 return self.triton_kernel_moe_forward(
                     hidden_states=x,
                     w1=layer.w13_weight,
                     w2=layer.w2_weight,
                     topk_output=topk_output,
+                    moe_runner_config=moe_runner_config,
                 )
         else:
             if _use_aiter:
-                assert not no_combine, "unsupported"
+                assert not moe_runner_config.no_combine, "unsupported"
                 topk_weights, topk_ids, _ = topk_output
-                if apply_router_weight_on_input:
+                if moe_runner_config.apply_router_weight_on_input:
                     assert (
                         topk_weights.dim() == 2
                     ), "`topk_weights` should be in shape (num_tokens, topk)"
@@ -309,7 +286,7 @@ class UnquantizedFusedMoEMethod(FusedMoEMethodBase, CustomOp):
                     topk_ids,
                     activation=(
                         ActivationType.Silu
-                        if activation == "silu"
+                        if moe_runner_config.activation == "silu"
                         else ActivationType.Gelu
                     ),
                 )
@@ -325,13 +302,7 @@ class UnquantizedFusedMoEMethod(FusedMoEMethodBase, CustomOp):
                     b1=getattr(layer, "w13_weight_bias", None),
                     b2=getattr(layer, "w2_weight_bias", None),
                     topk_output=topk_output,
-                    inplace=inplace and not no_combine,
-                    activation=activation,
-                    apply_router_weight_on_input=apply_router_weight_on_input,
-                    no_combine=no_combine,
-                    routed_scaling_factor=routed_scaling_factor,
-                    activation_alpha=activation_alpha,
-                    swiglu_limit=swiglu_limit,
+                    moe_runner_config=moe_runner_config,
                 )
 
     def forward_cpu(
@@ -339,21 +310,21 @@ class UnquantizedFusedMoEMethod(FusedMoEMethodBase, CustomOp):
         layer: torch.nn.Module,
         x: torch.Tensor,
         topk_output: TopKOutput,
-        *,
-        activation: str = "silu",
-        apply_router_weight_on_input: bool = False,
-        inplace: bool = True,
-        no_combine: bool = False,
-        routed_scaling_factor: Optional[float] = None,
+        moe_runner_config: MoeRunnerConfig,
     ) -> torch.Tensor:
-        assert activation == "silu", f"activation = {activation} is not supported."
+        assert (
+            moe_runner_config.activation == "silu"
+        ), f"activation = {moe_runner_config.activation} is not supported."
 
-        if use_intel_amx_backend(layer) and not apply_router_weight_on_input:
+        if (
+            use_intel_amx_backend(layer)
+            and not moe_runner_config.apply_router_weight_on_input
+        ):
             from sglang.srt.layers.moe.topk import apply_topk_weights_cpu
 
             topk_weights, topk_ids, _ = topk_output
             x, topk_weights = apply_topk_weights_cpu(
-                apply_router_weight_on_input, topk_weights, x
+                moe_runner_config.apply_router_weight_on_input, topk_weights, x
             )
             return torch.ops.sgl_kernel.fused_experts_cpu(
                 x,
@@ -378,11 +349,7 @@ class UnquantizedFusedMoEMethod(FusedMoEMethodBase, CustomOp):
                 layer,
                 x,
                 topk_output,
-                activation=activation,
-                apply_router_weight_on_input=apply_router_weight_on_input,
-                inplace=inplace,
-                no_combine=no_combine,
-                routed_scaling_factor=routed_scaling_factor,
+                moe_runner_config,
             )
 
     def forward_npu(
@@ -390,12 +357,7 @@ class UnquantizedFusedMoEMethod(FusedMoEMethodBase, CustomOp):
         layer: torch.nn.Module,
         x: torch.Tensor,
         topk_output: TopKOutput,
-        *,
-        activation: str = "silu",
-        apply_router_weight_on_input: bool = False,
-        inplace: bool = True,
-        no_combine: bool = False,
-        routed_scaling_factor: Optional[float] = None,
+        moe_runner_config: MoeRunnerConfig,
     ) -> torch.Tensor:
         from sglang.srt.layers.moe.fused_moe_native import moe_forward_native
 
@@ -403,11 +365,7 @@ class UnquantizedFusedMoEMethod(FusedMoEMethodBase, CustomOp):
             layer,
             x,
             topk_output,
-            activation=activation,
-            apply_router_weight_on_input=apply_router_weight_on_input,
-            inplace=inplace,
-            no_combine=no_combine,
-            routed_scaling_factor=routed_scaling_factor,
+            moe_runner_config,
         )
 
     def forward_tpu(self, *args, **kwargs) -> torch.Tensor:

python/sglang/srt/layers/quantization/w4afp8.py

@@ -18,7 +18,9 @@ from sglang.srt.layers.quantization.utils import is_layer_skipped
 from sglang.srt.utils import set_weight_attrs
 
 if TYPE_CHECKING:
-    from sglang.srt.layers.moe.ep_moe.layer import EPMoE, TopKOutput
+    from sglang.srt.layers.moe import MoeRunnerConfig
+    from sglang.srt.layers.moe.ep_moe.layer import EPMoE
+    from sglang.srt.layers.moe.topk import StandardTopKOutput
 
 ACTIVATION_SCHEMES = ["static", "dynamic"]
 
@@ -280,11 +282,8 @@ class W4AFp8MoEMethod(FusedMoEMethodBase):
         self,
         layer: EPMoE,
         x: torch.Tensor,
-        topk_output: TopKOutput,
-        activation: str = "silu",
-        apply_router_weight_on_input: bool = False,
-        routed_scaling_factor: Optional[float] = None,
-        **kwargs,
+        topk_output: StandardTopKOutput,
+        moe_runner_config: MoeRunnerConfig,
     ) -> torch.Tensor:
 
         # TODO(ch-wan): move it out of this class
@@ -324,6 +323,6 @@ class W4AFp8MoEMethod(FusedMoEMethodBase):
             layer.w13_input_scale,
             layer.w2_input_scale,
         )
-        if routed_scaling_factor is not None:
-            output *= routed_scaling_factor
+        if moe_runner_config.routed_scaling_factor is not None:
+            output *= moe_runner_config.routed_scaling_factor
         return output

python/sglang/srt/layers/quantization/w8a8_fp8.py

@@ -26,7 +26,8 @@ from sglang.srt.layers.quantization.fp8_utils import (
 from sglang.srt.utils import set_weight_attrs
 
 if TYPE_CHECKING:
-    from sglang.srt.layers.moe.topk import TopKOutput
+    from sglang.srt.layers.moe.moe_runner import MoeRunnerConfig
+    from sglang.srt.layers.moe.topk import StandardTopKOutput
 
 _is_fp8_fnuz = is_fp8_fnuz()
 
@@ -269,13 +270,8 @@ class W8A8FP8MoEMethod(FusedMoEMethodBase):
         self,
         layer: torch.nn.Module,
         x: torch.Tensor,
-        topk_output: TopKOutput,
-        *,
-        activation: str = "silu",
-        apply_router_weight_on_input: bool = False,
-        inplace: bool = True,
-        no_combine: bool = False,
-        routed_scaling_factor: Optional[float] = None,
+        topk_output: StandardTopKOutput,
+        moe_runner_config: MoeRunnerConfig,
     ) -> torch.Tensor:
         from sglang.srt.layers.moe.fused_moe_triton.fused_moe import fused_experts
 
@@ -284,15 +280,11 @@ class W8A8FP8MoEMethod(FusedMoEMethodBase):
             layer.w13_weight,
             layer.w2_weight,
             topk_output=topk_output,
-            inplace=inplace,
-            apply_router_weight_on_input=apply_router_weight_on_input,
-            activation=activation,
+            moe_runner_config=moe_runner_config,
             use_fp8_w8a8=True,
             per_channel_quant=True,
             w1_scale=(layer.w13_weight_scale),
             w2_scale=(layer.w2_weight_scale),
             a1_scale=layer.w13_input_scale,
             a2_scale=layer.w2_input_scale,
-            no_combine=no_combine,
-            routed_scaling_factor=routed_scaling_factor,
         )

python/sglang/srt/layers/quantization/w8a8_int8.py

@@ -49,6 +49,7 @@ from sglang.srt.utils import (
 )
 
 if TYPE_CHECKING:
+    from sglang.srt.layers.moe.moe_runner import MoeRunnerConfig
     from sglang.srt.layers.moe.topk import TopKOutput
 
 _is_cuda = is_cuda()
@@ -487,12 +488,7 @@ class W8A8Int8MoEMethod(FusedMoEMethodBase):
         layer: torch.nn.Module,
         x: torch.Tensor,
         topk_output: TopKOutput,
-        *,
-        activation: str = "silu",
-        apply_router_weight_on_input: bool = False,
-        inplace: bool = True,
-        no_combine: bool = False,
-        routed_scaling_factor: Optional[float] = None,
+        moe_runner_config: MoeRunnerConfig,
     ) -> torch.Tensor:
         from sglang.srt.layers.moe.fused_moe_triton.fused_moe import fused_experts
 
@@ -501,7 +497,7 @@ class W8A8Int8MoEMethod(FusedMoEMethodBase):
 
             topk_weights, topk_ids, _ = topk_output
             x, topk_weights = apply_topk_weights_cpu(
-                apply_router_weight_on_input, topk_weights, x
+                moe_runner_config.apply_router_weight_on_input, topk_weights, x
             )
             return torch.ops.sgl_kernel.fused_experts_cpu(
                 x,
@@ -525,17 +521,13 @@ class W8A8Int8MoEMethod(FusedMoEMethodBase):
             layer.w13_weight,
             layer.w2_weight,
             topk_output=topk_output,
-            inplace=inplace,
-            activation=activation,
-            apply_router_weight_on_input=apply_router_weight_on_input,
+            moe_runner_config=moe_runner_config,
             use_int8_w8a8=True,
             per_channel_quant=True,
             w1_scale=(layer.w13_weight_scale),
             w2_scale=(layer.w2_weight_scale),
             a1_scale=layer.w13_input_scale,
             a2_scale=layer.w2_input_scale,
-            no_combine=no_combine,
-            routed_scaling_factor=routed_scaling_factor,
         )
 
 
@@ -982,7 +974,7 @@ class NPU_W8A8MoEMethod(FusedMoEMethodBase):
         layer,
         x,
         topk_output: TopKOutput,
-        **kwargs,
+        moe_runner_config: MoeRunnerConfig,
     ) -> torch.Tensor:
 
         topk_weights, topk_ids, _ = topk_output

python/sglang/srt/managers/schedule_batch.py

@@ -52,6 +52,7 @@ from sglang.srt.disaggregation.decode_schedule_batch_mixin import (
     ScheduleBatchDisaggregationDecodeMixin,
 )
 from sglang.srt.distributed.parallel_state import get_tensor_model_parallel_rank
+from sglang.srt.layers.moe import is_tbo_enabled
 from sglang.srt.mem_cache.allocator import (
     BaseTokenToKVPoolAllocator,
     SWATokenToKVPoolAllocator,
@@ -84,17 +85,10 @@ GLOBAL_SERVER_ARGS_KEYS = [
     "device",
     "disable_chunked_prefix_cache",
     "disable_radix_cache",
-    "enable_two_batch_overlap",
-    "tbo_token_distribution_threshold",
     "enable_dp_lm_head",
-    "moe_a2a_backend",
-    "deepep_mode",
-    "enable_flashinfer_cutlass_moe",
-    "enable_flashinfer_trtllm_moe",
     "enable_flashinfer_allreduce_fusion",
     "moe_dense_tp_size",
     "ep_dispatch_algorithm",
-    "deepep_config",
     "ep_num_redundant_experts",
     "enable_nan_detection",
     "flashinfer_mla_disable_ragged",
@@ -107,8 +101,6 @@ GLOBAL_SERVER_ARGS_KEYS = [
     "triton_attention_reduce_in_fp32",
     "num_reserved_decode_tokens",
     "weight_loader_disable_mmap",
-    "enable_triton_kernel_moe",
-    "enable_flashinfer_mxfp4_moe",
     "enable_multimodal",
     "enable_symm_mem",
     "quantization",

python/sglang/srt/managers/scheduler.py

@@ -64,7 +64,7 @@ from sglang.srt.hf_transformers_utils import (
 )
 from sglang.srt.layers.dp_attention import compute_dp_attention_world_info
 from sglang.srt.layers.logits_processor import LogitsProcessorOutput
-from sglang.srt.layers.moe.utils import DeepEPMode, MoeA2ABackend
+from sglang.srt.layers.moe import initialize_moe_config
 from sglang.srt.managers.io_struct import (
     AbortReq,
     CloseSessionReqInput,
@@ -245,6 +245,9 @@ class Scheduler(
             )
         )
 
+        # Init model config
+        self.model_config = ModelConfig.from_server_args(server_args)
+
         # Init inter-process communication
         context = zmq.Context(2)
         self.idle_sleeper = None
@@ -292,6 +295,9 @@ class Scheduler(
         # Init tokenizer
         self.init_tokenizer()
 
+        # Init moe config
+        self.init_moe_config()
+
         # Set reasoning_parser and think_end_id if --reasoning_parser is enabled
         if self.server_args.reasoning_parser and self.tokenizer:
             reasoning_parser = ReasoningParser(
@@ -538,8 +544,6 @@ class Scheduler(
 
     def init_tokenizer(self):
         server_args = self.server_args
-
-        self.model_config = ModelConfig.from_server_args(server_args)
         self.is_generation = self.model_config.is_generation
 
         if server_args.skip_tokenizer_init:
@@ -761,6 +765,10 @@ class Scheduler(
             # The prefill requests that are in the middle of kv sending
             self.disagg_prefill_inflight_queue: List[Req] = []
 
+    def init_moe_config(self):
+        if hasattr(self.model_config.hf_config, "num_experts_per_tok"):
+            initialize_moe_config(self.server_args)
+
     @DynamicGradMode()
     def event_loop_normal(self):
         """A normal scheduler loop."""
@@ -1823,11 +1831,6 @@ class Scheduler(
             disable_cuda_graph=self.server_args.disable_cuda_graph,
             spec_algorithm=self.spec_algorithm,
             speculative_num_draft_tokens=self.server_args.speculative_num_draft_tokens,
-            enable_two_batch_overlap=self.server_args.enable_two_batch_overlap,
-            enable_deepep_moe=MoeA2ABackend(
-                self.server_args.moe_a2a_backend
-            ).is_deepep(),
-            deepep_mode=DeepEPMode(self.server_args.deepep_mode),
             require_mlp_tp_gather=require_mlp_tp_gather(self.server_args),
             disable_overlap_schedule=self.server_args.disable_overlap_schedule,
         )
@@ -1922,9 +1925,6 @@ class Scheduler(
         disable_cuda_graph: bool,
         spec_algorithm,
         speculative_num_draft_tokens,
-        enable_two_batch_overlap: bool,
-        enable_deepep_moe: bool,
-        deepep_mode: DeepEPMode,
         require_mlp_tp_gather: bool,
         disable_overlap_schedule: bool,
     ):
@@ -1972,9 +1972,6 @@ class Scheduler(
                 is_extend_in_batch,
                 *tbo_preparer.prepare_all_gather(
                     local_batch,
-                    deepep_mode,
-                    enable_deepep_moe,
-                    enable_two_batch_overlap,
                 ),
             ],
             dtype=torch.int64,

python/sglang/srt/model_executor/model_runner.py

@@ -60,7 +60,6 @@ from sglang.srt.layers.dp_attention import (
     initialize_dp_attention,
 )
 from sglang.srt.layers.logits_processor import LogitsProcessorOutput
-from sglang.srt.layers.moe.utils import DeepEPMode, MoeA2ABackend
 from sglang.srt.layers.quantization import (
     deep_gemm_wrapper,
     monkey_patch_isinstance_for_vllm_base_layer,
@@ -219,8 +218,6 @@ class ModelRunner:
                 # TODO it is indeed not a "server args"
                 "use_mla_backend": self.use_mla_backend,
                 "speculative_algorithm": self.spec_algorithm,
-                "moe_a2a_backend": MoeA2ABackend(server_args.moe_a2a_backend),
-                "deepep_mode": DeepEPMode(server_args.deepep_mode),
             }
         )
 

python/sglang/srt/models/dbrx.py

@@ -32,7 +32,9 @@ from sglang.srt.layers.linear import (
     RowParallelLinear,
 )
 from sglang.srt.layers.logits_processor import LogitsProcessor
-from sglang.srt.layers.moe.fused_moe_triton import fused_moe
+from sglang.srt.layers.moe.fused_moe_triton.fused_moe import fused_moe
+from sglang.srt.layers.moe.moe_runner import MoeRunnerConfig
+from sglang.srt.layers.moe.topk import TopK
 from sglang.srt.layers.quantization.base_config import QuantizationConfig
 from sglang.srt.layers.radix_attention import RadixAttention
 from sglang.srt.layers.rotary_embedding import get_rope
@@ -104,6 +106,11 @@ class DbrxExperts(nn.Module):
         self.params_dtype = params_dtype
 
         self.router = DbrxRouter(config, self.params_dtype)
+        self.topk = TopK(
+            self.top_k,
+            renormalize=True,
+        )
+        self.moe_runner_config = MoeRunnerConfig(inplace=True)
         self.ws = nn.Parameter(
             torch.empty(
                 self.num_total_experts,
@@ -169,14 +176,13 @@ class DbrxExperts(nn.Module):
         hidden_states = hidden_states.view(-1, self.d_model)
         # router_logits: (num_tokens, n_experts)
         router_logits = self.router(hidden_states)
+        topk_output = self.topk(hidden_states, router_logits)
         final_hidden_states = fused_moe(
             hidden_states,
             self.ws,
             self.w2s,
-            router_logits,
-            self.top_k,
-            renormalize=True,
-            inplace=True,
+            topk_output,
+            self.moe_runner_config,
         )
 
         if self.tp_size > 1:
@@ -293,7 +299,7 @@ class DbrxFusedNormAttention(nn.Module):
         position_ids: torch.Tensor,
         hidden_states: torch.Tensor,
         forward_batch: ForwardBatch,
-    ) -> torch.Tensor:
+    ) -> Tuple[torch.Tensor, torch.Tensor]:
         residual = hidden_states
         hidden_states = self.norm_1(hidden_states)
         x = self.attn(

python/sglang/srt/models/deepseek.py

@@ -37,6 +37,7 @@ from sglang.srt.layers.linear import (
 )
 from sglang.srt.layers.logits_processor import LogitsProcessor
 from sglang.srt.layers.moe.fused_moe_triton import fused_moe
+from sglang.srt.layers.moe.moe_runner import MoeRunnerConfig
 from sglang.srt.layers.moe.topk import TopK
 from sglang.srt.layers.quantization.base_config import QuantizationConfig
 from sglang.srt.layers.radix_attention import RadixAttention
@@ -180,7 +181,7 @@ class DeepseekMoE(nn.Module):
             w1=self.w1,
             w2=self.w2,
             topk_output=topk_output,
-            inplace=True,
+            moe_runner_config=MoeRunnerConfig(inplace=True),
         )
 
         if self.config.n_shared_experts is not None: