tcp: handle cleanups without timers

Type: improvement

Signed-off-by: Florin Coras <fcoras@cisco.com>
Change-Id: Ida896e9fbe83b4c76578b089bb3fd2bef5e07fd2

1 files changed, 12 insertions, 2 deletions

diff --git a/src/vnet/tcp/tcp.h b/src/vnet/tcp/tcp.h
index bef7edbd411..6094ac5110a 100644
--- a/src/vnet/tcp/tcp.h
+++ b/src/vnet/tcp/tcp.h
@@ -522,6 +522,12 @@ typedef struct tcp_wrk_stats_
 #undef _
 } tcp_wrk_stats_t;
 
+typedef struct tcp_free_req_
+{
+  clib_time_type_t free_time;
+  u32 connection_index;
+} tcp_cleanup_req_t;
+
 typedef struct tcp_worker_ctx_
 {
   CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
@@ -561,6 +567,9 @@ typedef struct tcp_worker_ctx_
   /* Fifo of pending timer expirations */
   u32 *pending_timers;
 
+  /* fifo of pending free requests */
+  tcp_cleanup_req_t *pending_cleanups;
+
   /** worker timer wheel */
   tw_timer_wheel_16t_2w_512sl_t timer_wheel;
 
@@ -634,8 +643,8 @@ typedef struct tcp_configuration_
   /** Timer ticks to wait in closing for fin ack */
   u16 closing_time;
 
-  /** Timer ticks to wait before cleaning up the connection */
-  u16 cleanup_time;
+  /** Time to wait (sec) before cleaning up the connection */
+  f32 cleanup_time;
 
   /** Number of preallocated connections */
   u32 preallocated_connections;
@@ -1090,6 +1099,7 @@ void tcp_connection_init_vars (tcp_connection_t * tc);
 void tcp_connection_tx_pacer_update (tcp_connection_t * tc);
 void tcp_connection_tx_pacer_reset (tcp_connection_t * tc, u32 window,
 				    u32 start_bucket);
+void tcp_program_cleanup (tcp_worker_ctx_t * wrk, tcp_connection_t * tc);
 
 always_inline void
 tcp_cc_rcv_ack (tcp_connection_t * tc, tcp_rate_sample_t * rs)