From 231df4b0d4c88dbb34f83647dc6028e91aa5e5db Mon Sep 17 00:00:00 2001
From: Lianmin Zheng <lianminzheng@gmail.com>
Date: Wed, 26 Nov 2025 16:32:41 -0800
Subject: [PATCH] Cleanup server args (#14027)

---
 python/sglang/srt/server_args.py | 42 +++++++++++++++++---------------
 1 file changed, 22 insertions(+), 20 deletions(-)

diff --git a/python/sglang/srt/server_args.py b/python/sglang/srt/server_args.py
index 3768057e8..4db37be09 100644
--- a/python/sglang/srt/server_args.py
+++ b/python/sglang/srt/server_args.py
@@ -240,10 +240,6 @@ class ServerArgs:
     revision: Optional[str] = None
     model_impl: str = "auto"
 
-    # Diffusion LLM
-    dllm_algorithm: Optional[str] = None
-    dllm_block_size: Optional[int] = None
-
     # HTTP server
     host: str = "127.0.0.1"
     port: int = 30000
@@ -397,7 +393,7 @@ class ServerArgs:
     speculative_attention_mode: str = "prefill"
     speculative_moe_runner_backend: Optional[str] = None
 
-    # For ngram only
+    # Speculative decoding (ngram)
     speculative_ngram_min_match_window_size: int = 1
     speculative_ngram_max_match_window_size: int = 12
     speculative_ngram_min_bfs_breadth: int = 1
@@ -457,6 +453,10 @@ class ServerArgs:
     kt_num_gpu_experts: Optional[int] = None
     kt_max_deferred_experts_per_token: Optional[int] = None
 
+    # Diffusion LLM
+    dllm_algorithm: Optional[str] = None
+    dllm_block_size: Optional[int] = None
+
     # Double Sparsity
     enable_double_sparsity: bool = False
     ds_channel_config_path: Optional[str] = None
@@ -2124,20 +2124,6 @@ class ServerArgs:
             "implementation.\n",
         )
 
-        # Diffusion LLM
-        parser.add_argument(
-            "--dllm-algorithm",
-            type=str,
-            default=ServerArgs.dllm_algorithm,
-            help="The diffusion LLM algorithm.",
-        )
-        parser.add_argument(
-            "--dllm-block-size",
-            type=int,
-            default=ServerArgs.dllm_block_size,
-            help="The number of tokens processed in each iteration of the block diffusion LLM.",
-        )
-
         # HTTP server
         parser.add_argument(
             "--host",
@@ -2973,7 +2959,8 @@ class ServerArgs:
             default=ServerArgs.speculative_moe_runner_backend,
             help="Choose the runner backend for MoE in speculative decoding.",
         )
-        # Ngram speculative decoding
+
+        # Speculative decoding (ngram)
         parser.add_argument(
             "--speculative-ngram-min-match-window-size",
             type=int,
@@ -3282,6 +3269,21 @@ class ServerArgs:
             default=ServerArgs.kt_max_deferred_experts_per_token,
             help="[ktransformers parameter] Maximum number of experts deferred to CPU per token. All MoE layers except the final one use this value; the final layer always uses 0.",
         )
+
+        # Diffusion LLM
+        parser.add_argument(
+            "--dllm-algorithm",
+            type=str,
+            default=ServerArgs.dllm_algorithm,
+            help="The diffusion LLM algorithm.",
+        )
+        parser.add_argument(
+            "--dllm-block-size",
+            type=int,
+            default=ServerArgs.dllm_block_size,
+            help="The number of tokens processed in each iteration of the block diffusion LLM.",
+        )
+
         # Double Sparsity
         parser.add_argument(
             "--enable-double-sparsity",