minor: fix config (#1524)

python/sglang/srt/configs/model_config.py

@@ -49,13 +49,13 @@ class ModelConfig:
         if context_length is not None:
             self.context_len = context_length
         else:
-            self.context_len = get_context_length(self.hf_config)
+            self.context_len = get_context_length(self.hf_text_config)
 
-        # Unify the config keys for hf_config
+        # Unify the config keys for hf_text_config
         self.head_dim = getattr(
-            self.hf_config,
+            self.hf_text_config,
             "head_dim",
-            self.hf_config.hidden_size // self.hf_config.num_attention_heads,
+            self.hf_text_config.hidden_size // self.hf_text_config.num_attention_heads,
         )
 
         # FIXME: temporary special judge for deepseek v2 MLA architecture
@@ -72,8 +72,10 @@ class ModelConfig:
         else:
             self.attention_arch = AttentionArch.MHA
 
-        self.num_attention_heads = self.hf_config.num_attention_heads
-        self.num_key_value_heads = getattr(self.hf_config, "num_key_value_heads", None)
+        self.num_attention_heads = self.hf_text_config.num_attention_heads
+        self.num_key_value_heads = getattr(
+            self.hf_text_config, "num_key_value_heads", None
+        )
 
         # for Dbrx and MPT models
         if self.hf_config.model_type in ["dbrx", "mpt"]:
@@ -83,9 +85,9 @@ class ModelConfig:
 
         if self.num_key_value_heads is None:
             self.num_key_value_heads = self.num_attention_heads
-        self.hidden_size = self.hf_config.hidden_size
-        self.num_hidden_layers = self.hf_config.num_hidden_layers
-        self.vocab_size = self.hf_config.vocab_size
+        self.hidden_size = self.hf_text_config.hidden_size
+        self.num_hidden_layers = self.hf_text_config.num_hidden_layers
+        self.vocab_size = self.hf_text_config.vocab_size
 
     # adapted from https://github.com/vllm-project/vllm/blob/main/vllm/config.py#L289
     def get_total_num_kv_heads(self) -> int: