tcp: reuse session infra for syns and resets
Type: improvement
Signed-off-by: Florin Coras <fcoras@cisco.com>
Change-Id: I71df27049ef0193578f0c42f8f8bbd5c54e4d53e
diff --git a/src/vnet/session/session.c b/src/vnet/session/session.c
index fa4cd85..ce3f581 100644
--- a/src/vnet/session/session.c
+++ b/src/vnet/session/session.c
@@ -1548,11 +1548,11 @@
}
void
-session_flush_frames_main_thread (vlib_main_t * vm)
+session_queue_run_on_main_thread (vlib_main_t * vm)
{
ASSERT (vlib_get_thread_index () == 0);
vlib_process_signal_event_mt (vm, session_queue_process_node.index,
- SESSION_Q_PROCESS_FLUSH_FRAMES, 0);
+ SESSION_Q_PROCESS_RUN_ON_MAIN, 0);
}
static clib_error_t *
diff --git a/src/vnet/session/session.h b/src/vnet/session/session.h
index d72763a..681b42d 100644
--- a/src/vnet/session/session.h
+++ b/src/vnet/session/session.h
@@ -202,8 +202,11 @@
extern vlib_node_registration_t session_queue_process_node;
extern vlib_node_registration_t session_queue_pre_input_node;
-#define SESSION_Q_PROCESS_FLUSH_FRAMES 1
-#define SESSION_Q_PROCESS_STOP 2
+typedef enum session_q_process_evt_
+{
+ SESSION_Q_PROCESS_RUN_ON_MAIN = 1,
+ SESSION_Q_PROCESS_STOP
+} session_q_process_evt_t;
#define TRANSPORT_PROTO_INVALID (session_main.last_transport_proto_type + 1)
#define TRANSPORT_N_PROTOS (session_main.last_transport_proto_type + 1)
@@ -641,14 +644,22 @@
int session_main_flush_enqueue_events (u8 proto, u32 thread_index);
int session_main_flush_all_enqueue_events (u8 transport_proto);
-void session_flush_frames_main_thread (vlib_main_t * vm);
+void session_queue_run_on_main_thread (vlib_main_t * vm);
+/**
+ * Add session node pending buffer with custom node
+ *
+ * @param thread_index worker thread expected to send the buffer
+ * @param bi buffer index
+ * @param next_node next node edge index for buffer. Edge to next node
+ * must exist
+ */
always_inline void
-session_add_pending_tx_buffer (session_type_t st, u32 thread_index, u32 bi)
+session_add_pending_tx_buffer (u32 thread_index, u32 bi, u32 next_node)
{
session_worker_t *wrk = session_main_get_worker (thread_index);
vec_add1 (wrk->pending_tx_buffers, bi);
- vec_add1 (wrk->pending_tx_nexts, session_main.session_type_to_next[st]);
+ vec_add1 (wrk->pending_tx_nexts, next_node);
}
ssvm_private_t *session_main_get_evt_q_segment (void);
diff --git a/src/vnet/session/session_node.c b/src/vnet/session/session_node.c
index b5f4321..2a4bb6b 100644
--- a/src/vnet/session/session_node.c
+++ b/src/vnet/session/session_node.c
@@ -1564,32 +1564,39 @@
VLIB_MAIN_LOOP_EXIT_FUNCTION (session_queue_exit);
static uword
+session_queue_run_on_main (vlib_main_t * vm)
+{
+ vlib_node_runtime_t *node;
+
+ node = vlib_node_get_runtime (vm, session_queue_node.index);
+ return session_queue_node_fn (vm, node, 0);
+}
+
+static uword
session_queue_process (vlib_main_t * vm, vlib_node_runtime_t * rt,
vlib_frame_t * f)
{
- f64 now, timeout = 1.0;
uword *event_data = 0;
+ f64 timeout = 1.0;
uword event_type;
while (1)
{
vlib_process_wait_for_event_or_clock (vm, timeout);
- now = vlib_time_now (vm);
event_type = vlib_process_get_events (vm, (uword **) & event_data);
switch (event_type)
{
- case SESSION_Q_PROCESS_FLUSH_FRAMES:
- /* Flush the frames by updating all transports times */
- transport_update_time (now, 0);
+ case SESSION_Q_PROCESS_RUN_ON_MAIN:
+ /* Run session queue node on main thread */
+ session_queue_run_on_main (vm);
break;
case SESSION_Q_PROCESS_STOP:
timeout = 100000.0;
break;
case ~0:
- /* Timed out. Update time for all transports to trigger all
- * outstanding retransmits. */
- transport_update_time (now, 0);
+ /* Timed out. Run on main to ensure all events are handled */
+ session_queue_run_on_main (vm);
break;
}
vec_reset_length (event_data);