skip fusedmoe layer for start_load_kv (#21378)

Signed-off-by: calvin chen <wen.chen@dynamia.ai>

Author: calvin0327

vllm/distributed/kv_transfer/kv_connector/v1/p2p/p2p_nccl_connector.py

@@ -192,8 +192,16 @@ def inject_kv_into_layer(
         # Load the KV for each request each layer
         for request in metadata.requests:
             for layer_name in forward_context.no_compile_layers:
-                attn_layer = forward_context.no_compile_layers[layer_name]
-                kv_cache_layer = attn_layer.kv_cache[ \
+                layer = forward_context.no_compile_layers[layer_name]
+
+                # Only process layers that have kv_cache
+                # attribute (attention layers) Skip non-attention
+                # layers like FusedMoE
+                kv_cache = getattr(layer, 'kv_cache', None)
+                if kv_cache is None:
+                    continue
+
+                kv_cache_layer = kv_cache[ \
                     forward_context.virtual_engine]
 
                 kv_cache = self.p2p_nccl_engine.recv_tensor(