Support bitwise weight checksum verifier (#16729)

python/sglang/srt/model_loader/loader.py

@@ -422,6 +422,13 @@ class DefaultModelLoader(BaseModelLoader):
         else:
             hf_folder = model_name_or_path
 
+        server_args = get_global_server_args()
+        if server_args and server_args.model_checksum is not None:
+            from sglang.srt.utils.model_file_verifier import verify
+
+            checksums_source = server_args.model_checksum or model_name_or_path
+            verify(model_path=hf_folder, checksums_source=checksums_source)
+
         hf_weights_files: List[str] = []
         for pattern in allow_patterns:
             hf_weights_files += glob.glob(os.path.join(hf_folder, pattern))