diff --git a/src/idempotency/client/receipt_handler.c b/src/idempotency/client/receipt_handler.c
index ecaf850..4ab44cb 100644
--- a/src/idempotency/client/receipt_handler.c
+++ b/src/idempotency/client/receipt_handler.c
@@ -495,7 +495,7 @@ static int do_init()
             receipt_alloc_thread_extra_data, receipt_thread_loop_callback,
             NULL, sf_proto_set_body_length, NULL, NULL, receipt_deal_task,
             receipt_task_finish_cleanup, receipt_recv_timeout_callback,
-            1000, sizeof(SFCommonProtoHeader), 0, receipt_init_task, NULL);
+            1000, sizeof(SFCommonProtoHeader), 0, 0, receipt_init_task, NULL);
 }
 
 int receipt_handler_init()
diff --git a/src/sf_service.c b/src/sf_service.c
index ec48d01..9f0e5f6 100644
--- a/src/sf_service.c
+++ b/src/sf_service.c
@@ -66,8 +66,8 @@ int sf_init_task(struct fast_task_info *task)
 
 static void *worker_thread_entrance(void *arg);
 
-static int sf_init_free_queues(const int task_arg_size,
-        TaskInitCallback init_callback)
+static int sf_init_free_queues(const int task_padding_size,
+        const int task_arg_size, TaskInitCallback init_callback)
 {
 #define ALLOC_CONNECTIONS_ONCE 1024
 
@@ -100,7 +100,7 @@ static int sf_init_free_queues(const int task_arg_size,
     if ((result=free_queue_init_ex2(g_sf_global_vars.max_connections,
                     init_connections, alloc_conn_once, g_sf_global_vars.
                     min_buff_size, g_sf_global_vars.max_buff_size,
-                    task_arg_size, init_callback != NULL ?
+                    task_padding_size, task_arg_size, init_callback != NULL ?
                     init_callback : sf_init_task)) != 0)
     {
         return result;
@@ -119,9 +119,9 @@ int sf_service_init_ex2(SFContext *sf_context, const char *name,
         sf_send_done_callback send_done_callback,
         sf_deal_task_func deal_func, TaskCleanUpCallback task_cleanup_func,
         sf_recv_timeout_callback timeout_callback, const int net_timeout_ms,
-        const int proto_header_size, const int task_arg_size,
-        TaskInitCallback init_callback, sf_release_buffer_callback
-        release_buffer_callback)
+        const int proto_header_size, const int task_padding_size,
+        const int task_arg_size, TaskInitCallback init_callback,
+        sf_release_buffer_callback release_buffer_callback)
 {
     int result;
     int bytes;
@@ -142,7 +142,9 @@ int sf_service_init_ex2(SFContext *sf_context, const char *name,
             send_done_callback, deal_func, task_cleanup_func,
             timeout_callback, release_buffer_callback);
 
-    if ((result=sf_init_free_queues(task_arg_size, init_callback)) != 0) {
+    if ((result=sf_init_free_queues(task_padding_size,
+                    task_arg_size, init_callback)) != 0)
+    {
         return result;
     }
 
diff --git a/src/sf_service.h b/src/sf_service.h
index 64d573c..e5d7134 100644
--- a/src/sf_service.h
+++ b/src/sf_service.h
@@ -43,9 +43,9 @@ int sf_service_init_ex2(SFContext *sf_context, const char *name,
         sf_send_done_callback send_done_callback,
         sf_deal_task_func deal_func, TaskCleanUpCallback task_cleanup_func,
         sf_recv_timeout_callback timeout_callback, const int net_timeout_ms,
-        const int proto_header_size, const int task_arg_size,
-        TaskInitCallback init_callback, sf_release_buffer_callback
-        release_buffer_callback);
+        const int proto_header_size, const int task_padding_size,
+        const int task_arg_size, TaskInitCallback init_callback,
+        sf_release_buffer_callback release_buffer_callback);
 
 #define sf_service_init_ex(sf_context, name, alloc_thread_extra_data_callback,\
         thread_loop_callback, accept_done_callback, set_body_length_func,   \
@@ -55,7 +55,7 @@ int sf_service_init_ex2(SFContext *sf_context, const char *name,
         thread_loop_callback, accept_done_callback, set_body_length_func,     \
         NULL, send_done_callback, deal_func, task_cleanup_func, \
         timeout_callback, net_timeout_ms, proto_header_size, \
-        task_arg_size, NULL, NULL)
+        0, task_arg_size, NULL, NULL)
 
 #define sf_service_init(name, alloc_thread_extra_data_callback, \
         thread_loop_callback, accept_done_callback, set_body_length_func,   \
@@ -64,7 +64,7 @@ int sf_service_init_ex2(SFContext *sf_context, const char *name,
     sf_service_init_ex2(&g_sf_context, name, alloc_thread_extra_data_callback,  \
         thread_loop_callback, accept_done_callback, set_body_length_func, NULL, \
         send_done_callback, deal_func, task_cleanup_func, timeout_callback, \
-        net_timeout_ms, proto_header_size, task_arg_size, NULL, NULL)
+        net_timeout_ms, proto_header_size, 0, task_arg_size, NULL, NULL)
 
 int sf_service_destroy_ex(SFContext *sf_context);
 
diff --git a/src/sf_types.h b/src/sf_types.h
index 4791e4f..1fd0159 100644
--- a/src/sf_types.h
+++ b/src/sf_types.h
@@ -88,10 +88,12 @@ typedef struct sf_listener {
 } SFListener;
 
 struct sf_context;
+struct ibv_pd;
 typedef struct sf_network_handler {
     bool enabled;
     FCNetworkType type;
     struct sf_context *ctx;
+    struct ibv_pd *pd;
 
     SFListener inner;
     SFListener outer;