[Hybrid] Added supports_mamba_prefix_caching Protocol (#27339)

Signed-off-by: asafg <39553475+Josephasafg@users.noreply.github.com>

vllm/model_executor/models/falcon_h1.py

@@ -37,7 +37,13 @@ from vllm.model_executor.layers.vocab_parallel_embedding import (
 from vllm.model_executor.model_loader.weight_utils import default_weight_loader
 from vllm.sequence import IntermediateTensors
 
-from .interfaces import HasInnerState, IsHybrid, SupportsLoRA, SupportsPP
+from .interfaces import (
+    HasInnerState,
+    IsHybrid,
+    SupportsLoRA,
+    SupportsMambaPrefixCaching,
+    SupportsPP,
+)
 from .utils import (
     PPMissingLayer,
     is_pp_missing_parameter,
@@ -495,7 +501,14 @@ class FalconH1Model(nn.Module):
         return hidden_states
 
 
-class FalconH1ForCausalLM(nn.Module, HasInnerState, SupportsLoRA, SupportsPP, IsHybrid):
+class FalconH1ForCausalLM(
+    nn.Module,
+    HasInnerState,
+    SupportsLoRA,
+    SupportsPP,
+    IsHybrid,
+    SupportsMambaPrefixCaching,
+):
     packed_modules_mapping = {
         "qkv_proj": ["q_proj", "k_proj", "v_proj"],
         "gate_up_proj": ["gate_proj", "up_proj"],