first commit

vllm_br/model_executor/models/config.py

@@ -0,0 +1,51 @@
+################################################################################
+# Copyright(c)2020-2025 Shanghai Biren Technology Co., Ltd. All rights reserved.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+################################################################################
+
+from typing import TYPE_CHECKING
+
+# SPDX-License-Identifier: Apache-2.0
+# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
+from fastcore.basics import patch_to
+
+from vllm.logger import init_logger
+from vllm.model_executor.models.config import DeepseekV32ForCausalLM
+
+if TYPE_CHECKING:
+
+    from vllm.config import VllmConfig
+
+logger = init_logger(__name__)
+
+
+@patch_to(DeepseekV32ForCausalLM)
+def verify_and_update_config(vllm_config: "VllmConfig") -> None:
+    """
+    Updated fp8 cache to custom "fp8_ds_mla" format for DeepSeekV32
+    """
+    hf_config = vllm_config.model_config.hf_config
+
+    # Mirror the check in vllm/model_executor/models/deepseek_v2.py
+    is_v32 = hasattr(hf_config, "index_topk")
+    assert is_v32
+
+    # For DeepSeekV3.2, a custom fp8 format is used when fp8 kv-cache is enabled.
+    cache_config = vllm_config.cache_config
+    if cache_config.cache_dtype.startswith("fp8"):
+        cache_config.cache_dtype = "fp8_ds_mla"
+        logger.info("Using custom fp8 kv-cache format for DeepSeekV3.2")
+    if cache_config.cache_dtype == "bfloat16":
+        cache_config.cache_dtype = "auto"
+    logger.info("Using bfloat16 kv-cache for DeepSeekV3.2")