[Misc] Add `get_name` to missing AttentionBackends (#32698)

Signed-off-by: NickLucche <nlucches@redhat.com>

vllm/v1/attention/backends/gdn_attn.py

@@ -22,6 +22,10 @@ from vllm.v1.kv_cache_interface import AttentionSpec, MambaSpec
 
 
 class GDNAttentionBackend(AttentionBackend):
+    @staticmethod
+    def get_name() -> str:
+        return "GDN_ATTN"
+
     @staticmethod
     def get_builder_cls() -> type["GDNAttentionMetadataBuilder"]:
         return GDNAttentionMetadataBuilder

vllm/v1/attention/backends/linear_attn.py

@@ -16,6 +16,10 @@ from vllm.v1.kv_cache_interface import AttentionSpec, MambaSpec
 
 
 class LinearAttentionBackend(AttentionBackend):
+    @staticmethod
+    def get_name() -> str:
+        return "LINEAR_ATTN"
+
     @staticmethod
     def get_builder_cls() -> type["LinearAttentionMetadataBuilder"]:
         return LinearAttentionMetadataBuilder

vllm/v1/attention/backends/mamba1_attn.py

@@ -11,6 +11,10 @@ from vllm.v1.attention.backends.mamba_attn import (
 
 
 class Mamba1AttentionBackend(AttentionBackend):
+    @staticmethod
+    def get_name() -> str:
+        return "MAMBA1_ATTN"
+
     @staticmethod
     def get_builder_cls() -> type["Mamba1AttentionMetadataBuilder"]:
         return Mamba1AttentionMetadataBuilder

vllm/v1/attention/backends/mamba2_attn.py

@@ -7,7 +7,10 @@ import torch
 
 from vllm.config import VllmConfig
 from vllm.utils.math_utils import cdiv
-from vllm.v1.attention.backend import AttentionBackend, CommonAttentionMetadata
+from vllm.v1.attention.backend import (
+    AttentionBackend,
+    CommonAttentionMetadata,
+)
 from vllm.v1.attention.backends.mamba_attn import (
     BaseMambaAttentionMetadata,
     BaseMambaAttentionMetadataBuilder,
@@ -85,6 +88,10 @@ def compute_varlen_chunk_metadata(
 
 
 class Mamba2AttentionBackend(AttentionBackend):
+    @staticmethod
+    def get_name() -> str:
+        return "MAMBA2_ATTN"
+
     @staticmethod
     def get_builder_cls() -> type["Mamba2AttentionMetadataBuilder"]:
         return Mamba2AttentionMetadataBuilder

vllm/v1/attention/backends/mla/indexer.py

@@ -25,6 +25,10 @@ logger = init_logger(__name__)
 
 
 class DeepseekV32IndexerBackend(AttentionBackend):
+    @staticmethod
+    def get_name() -> str:
+        return "DEEPSEEK_V32_INDEXER"
+
     @staticmethod
     def get_supported_kernel_block_sizes() -> list[int | MultipleOf]:
         return [1 if current_platform.is_rocm() else 64]

vllm/v1/attention/backends/short_conv_attn.py

@@ -10,6 +10,10 @@ from vllm.v1.attention.backends.mamba_attn import (
 
 
 class ShortConvAttentionBackend(AttentionBackend):
+    @staticmethod
+    def get_name() -> str:
+        return "SHORT_CONV_ATTN"
+
     @staticmethod
     def get_builder_cls() -> type["ShortConvAttentionMetadataBuilder"]:
         return ShortConvAttentionMetadataBuilder