[gpt-oss] Add gpt-oss bf16 support

vllm/worker/utils.py

@@ -0,0 +1,53 @@
+# SPDX-License-Identifier: Apache-2.0
+# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
+'''
+Worker-related helper functions.
+'''
+
+from vllm.utils import STR_NOT_IMPL_ENC_DEC_ERR_STRS
+from vllm.worker.model_runner import GPUModelRunnerBase
+
+
+def assert_enc_dec_mr_supported_scenario(
+        enc_dec_mr: GPUModelRunnerBase) -> None:
+    '''
+    Asserted that the provided encoder/decoder model runner instance reflects
+    a supported scenario.
+    '''
+
+    # Reminder: Please update docs/features/compatibility_matrix.md
+    # If the feature combo become valid
+
+    if enc_dec_mr.cache_config.enable_prefix_caching:
+        raise NotImplementedError(
+            STR_NOT_IMPL_ENC_DEC_ERR_STRS['STR_NOT_IMPL_ENC_DEC_PREFIX_CACHE'])
+
+    if enc_dec_mr.sliding_window is not None:
+        raise NotImplementedError(
+            STR_NOT_IMPL_ENC_DEC_ERR_STRS['STR_NOT_IMPL_ENC_DEC_SWA'])
+
+    if enc_dec_mr.scheduler_config.chunked_prefill_enabled:
+        raise NotImplementedError(STR_NOT_IMPL_ENC_DEC_ERR_STRS[
+            'STR_NOT_IMPL_ENC_DEC_CHUNKED_PREFILL'])
+
+    if getattr(enc_dec_mr.model_config.hf_config, 'attn_logit_softcapping',
+               None) is not None:
+        raise NotImplementedError(
+            STR_NOT_IMPL_ENC_DEC_ERR_STRS['STR_NOT_IMPL_ENC_DEC_LOGIT_SOFTCAP']
+        )
+
+    if enc_dec_mr.lora_config is not None:
+        raise NotImplementedError(
+            STR_NOT_IMPL_ENC_DEC_ERR_STRS['STR_NOT_IMPL_ENC_DEC_LORA'])
+
+    if enc_dec_mr.parallel_config.pipeline_parallel_size > 1:
+        raise NotImplementedError(
+            STR_NOT_IMPL_ENC_DEC_ERR_STRS['STR_NOT_IMPL_ENC_DEC_PP'])
+
+    if enc_dec_mr.scheduler_config.num_lookahead_slots > 0:
+        raise NotImplementedError(
+            STR_NOT_IMPL_ENC_DEC_ERR_STRS['STR_NOT_IMPL_ENC_DEC_SPEC_DEC'])
+
+    if enc_dec_mr.prompt_adapter_config is not None:
+        raise NotImplementedError(STR_NOT_IMPL_ENC_DEC_ERR_STRS[
+            'STR_NOT_IMPL_ENC_DEC_PROMPT_ADAPTER'])