Refactor cache init logic (#13800)

test/srt/test_swa_unittest.py

@@ -3,6 +3,7 @@ import unittest
 import torch
 
 from sglang.srt.mem_cache.allocator import SWAKVPool, SWATokenToKVPoolAllocator
+from sglang.srt.mem_cache.cache_init_params import CacheInitParams
 from sglang.srt.mem_cache.memory_pool import ReqToTokenPool
 from sglang.srt.mem_cache.radix_cache import RadixKey
 from sglang.srt.mem_cache.swa_radix_cache import SWARadixCache
@@ -110,11 +111,13 @@ class TestSWA(unittest.TestCase):
         )
         # setup radix cache
         tree = SWARadixCache(
-            req_to_token_pool=req_to_token_pool,
-            token_to_kv_pool_allocator=allocator,
+            params=CacheInitParams(
+                req_to_token_pool=req_to_token_pool,
+                token_to_kv_pool_allocator=allocator,
+                disable=False,
+                page_size=1,
+            ),
             sliding_window_size=sliding_window_size,
-            page_size=1,
-            disable=False,
         )
 
         # test
@@ -241,12 +244,14 @@ class TestSWA(unittest.TestCase):
         )
         # setup radix cache
         tree = SWARadixCache(
-            req_to_token_pool=req_to_token_pool,
-            token_to_kv_pool_allocator=allocator,
+            params=CacheInitParams(
+                req_to_token_pool=req_to_token_pool,
+                token_to_kv_pool_allocator=allocator,
+                page_size=1,
+                disable=False,
+                is_eagle=True,
+            ),
             sliding_window_size=sliding_window_size,
-            page_size=1,
-            disable=False,
-            is_eagle=True,
         )
 
         # test