tcp: explicit use of timer wheel in timer apis

Type: refactor

Signed-off-by: Florin Coras <fcoras@cisco.com>
Change-Id: I06120d43c15b2fa3f437ef235bf5f83ec2beb45e

1 files changed, 21 insertions, 23 deletions

diff --git a/src/vnet/tcp/tcp_output.c b/src/vnet/tcp/tcp_output.c
index aeeffa726c3..a68d5269abd 100644
--- a/src/vnet/tcp/tcp_output.c
+++ b/src/vnet/tcp/tcp_output.c
@@ -808,12 +808,12 @@ tcp_send_syn (tcp_connection_t * tc)
    * Setup retransmit and establish timers before requesting buffer
    * such that we can return if we've ran out.
    */
-  tcp_timer_update (tc, TCP_TIMER_RETRANSMIT_SYN,
+  tcp_timer_update (&wrk->timer_wheel, tc, TCP_TIMER_RETRANSMIT_SYN,
 		    tc->rto * TCP_TO_TIMER_TICK);
 
   if (PREDICT_FALSE (!vlib_buffer_alloc (vm, &bi, 1)))
     {
-      tcp_timer_update (tc, TCP_TIMER_RETRANSMIT_SYN, 1);
+      tcp_timer_update (&wrk->timer_wheel, tc, TCP_TIMER_RETRANSMIT_SYN, 1);
       return;
     }
 
@@ -839,11 +839,11 @@ tcp_send_synack (tcp_connection_t * tc)
   vlib_buffer_t *b;
   u32 bi;
 
-  tcp_retransmit_timer_force_update (tc);
+  tcp_retransmit_timer_force_update (&wrk->timer_wheel, tc);
 
   if (PREDICT_FALSE (!vlib_buffer_alloc (vm, &bi, 1)))
     {
-      tcp_timer_update (tc, TCP_TIMER_RETRANSMIT, 1);
+      tcp_timer_update (&wrk->timer_wheel, tc, TCP_TIMER_RETRANSMIT, 1);
       return;
     }
 
@@ -874,7 +874,7 @@ tcp_send_fin (tcp_connection_t * tc)
   if (PREDICT_FALSE (!vlib_buffer_alloc (vm, &bi, 1)))
     {
       /* Out of buffers so program fin retransmit ASAP */
-      tcp_timer_update (tc, TCP_TIMER_RETRANSMIT, 1);
+      tcp_timer_update (&wrk->timer_wheel, tc, TCP_TIMER_RETRANSMIT, 1);
       if (fin_snt)
 	tc->snd_nxt += 1;
       else
@@ -887,7 +887,7 @@ tcp_send_fin (tcp_connection_t * tc)
   if ((tc->flags & TCP_CONN_SNDACK) && !tc->pending_dupacks)
     tc->flags &= ~TCP_CONN_SNDACK;
 
-  tcp_retransmit_timer_force_update (tc);
+  tcp_retransmit_timer_force_update (&wrk->timer_wheel, tc);
   b = vlib_get_buffer (vm, bi);
   tcp_init_buffer (vm, b);
   tcp_make_fin (tc, b);
@@ -1001,7 +1001,8 @@ tcp_session_push_header (transport_connection_t * tconn, vlib_buffer_t * b)
     }
   if (PREDICT_FALSE (!tcp_timer_is_active (tc, TCP_TIMER_RETRANSMIT)))
     {
-      tcp_retransmit_timer_set (tc);
+      tcp_worker_ctx_t *wrk = tcp_get_worker (tc->c_thread_index);
+      tcp_retransmit_timer_set (&wrk->timer_wheel, tc);
       tc->rto_boff = 0;
     }
   tcp_trajectory_add_start (b, 3);
@@ -1252,7 +1253,7 @@ tcp_prepare_retransmit_segment (tcp_worker_ctx_t * wrk,
 
   tc->bytes_retrans += n_bytes;
   tc->segs_retrans += 1;
-  tcp_workerp_stats_inc (wrk, rxt_segs, 1);
+  tcp_worker_stats_inc (wrk, rxt_segs, 1);
   TCP_EVT (TCP_EVT_CC_RTX, tc, offset, n_bytes);
 
   return n_bytes;
@@ -1304,7 +1305,7 @@ tcp_timer_retransmit_handler (tcp_connection_t * tc)
   vlib_buffer_t *b = 0;
   u32 bi, n_bytes;
 
-  tcp_workerp_stats_inc (wrk, tr_events, 1);
+  tcp_worker_stats_inc (wrk, tr_events, 1);
 
   /* Should be handled by a different handler */
   if (PREDICT_FALSE (tc->state == TCP_STATE_SYN_SENT))
@@ -1357,7 +1358,7 @@ tcp_timer_retransmit_handler (tcp_connection_t * tc)
 	  session_transport_closed_notify (&tc->connection);
 	  tcp_connection_timers_reset (tc);
 	  tcp_program_cleanup (wrk, tc);
-	  tcp_workerp_stats_inc (wrk, tr_abort, 1);
+	  tcp_worker_stats_inc (wrk, tr_abort, 1);
 	  return;
 	}
 
@@ -1373,7 +1374,7 @@ tcp_timer_retransmit_handler (tcp_connection_t * tc)
       n_bytes = tcp_prepare_retransmit_segment (wrk, tc, 0, n_bytes, &b);
       if (!n_bytes)
 	{
-	  tcp_timer_update (tc, TCP_TIMER_RETRANSMIT, 1);
+	  tcp_timer_update (&wrk->timer_wheel, tc, TCP_TIMER_RETRANSMIT, 1);
 	  return;
 	}
 
@@ -1381,7 +1382,7 @@ tcp_timer_retransmit_handler (tcp_connection_t * tc)
       tcp_enqueue_to_output (wrk, b, bi, tc->c_is_ip4);
 
       tc->rto = clib_min (tc->rto << 1, TCP_RTO_MAX);
-      tcp_retransmit_timer_force_update (tc);
+      tcp_retransmit_timer_force_update (&wrk->timer_wheel, tc);
 
       tc->rto_boff += 1;
       if (tc->rto_boff == 1)
@@ -1409,13 +1410,13 @@ tcp_timer_retransmit_handler (tcp_connection_t * tc)
 	  tcp_connection_set_state (tc, TCP_STATE_CLOSED);
 	  tcp_connection_timers_reset (tc);
 	  tcp_program_cleanup (wrk, tc);
-	  tcp_workerp_stats_inc (wrk, tr_abort, 1);
+	  tcp_worker_stats_inc (wrk, tr_abort, 1);
 	  return;
 	}
 
       if (PREDICT_FALSE (!vlib_buffer_alloc (vm, &bi, 1)))
 	{
-	  tcp_timer_update (tc, TCP_TIMER_RETRANSMIT, 1);
+	  tcp_timer_update (&wrk->timer_wheel, tc, TCP_TIMER_RETRANSMIT, 1);
 	  return;
 	}
 
@@ -1423,7 +1424,7 @@ tcp_timer_retransmit_handler (tcp_connection_t * tc)
       if (tc->rto_boff > TCP_RTO_SYN_RETRIES)
 	tc->rto = clib_min (tc->rto << 1, TCP_RTO_MAX);
 
-      tcp_retransmit_timer_force_update (tc);
+      tcp_retransmit_timer_force_update (&wrk->timer_wheel, tc);
 
       b = vlib_get_buffer (vm, bi);
       tcp_init_buffer (vm, b);
@@ -1478,7 +1479,7 @@ tcp_timer_retransmit_syn_handler (tcp_connection_t * tc)
 
   if (PREDICT_FALSE (!vlib_buffer_alloc (vm, &bi, 1)))
     {
-      tcp_timer_update (tc, TCP_TIMER_RETRANSMIT_SYN, 1);
+      tcp_timer_update (&wrk->timer_wheel, tc, TCP_TIMER_RETRANSMIT_SYN, 1);
       return;
     }
 
@@ -1498,7 +1499,7 @@ tcp_timer_retransmit_syn_handler (tcp_connection_t * tc)
   tcp_push_ip_hdr (wrk, tc, b);
   tcp_enqueue_to_ip_lookup (wrk, b, bi, tc->c_is_ip4, tc->c_fib_index);
 
-  tcp_timer_update (tc, TCP_TIMER_RETRANSMIT_SYN,
+  tcp_timer_update (&wrk->timer_wheel, tc, TCP_TIMER_RETRANSMIT_SYN,
 		    tc->rto * TCP_TO_TIMER_TICK);
 }
 
@@ -1529,7 +1530,7 @@ tcp_timer_persist_handler (tcp_connection_t * tc)
    * next time */
   if (!available_bytes)
     {
-      tcp_persist_timer_set (tc);
+      tcp_persist_timer_set (&wrk->timer_wheel, tc);
       return;
     }
 
@@ -1545,7 +1546,7 @@ tcp_timer_persist_handler (tcp_connection_t * tc)
    */
   if (PREDICT_FALSE (!vlib_buffer_alloc (vm, &bi, 1)))
     {
-      tcp_persist_timer_set (tc);
+      tcp_persist_timer_set (&wrk->timer_wheel, tc);
       return;
     }
 
@@ -1576,7 +1577,7 @@ tcp_timer_persist_handler (tcp_connection_t * tc)
   tcp_enqueue_to_output (wrk, b, bi, tc->c_is_ip4);
 
   /* Just sent new data, enable retransmit */
-  tcp_retransmit_timer_update (tc);
+  tcp_retransmit_timer_update (&wrk->timer_wheel, tc);
 
   return;
 
@@ -2171,9 +2172,6 @@ tcp_output_handle_packet (tcp_connection_t * tc0, vlib_buffer_t * b0,
 	}
     }
 
-  if (!TCP_ALWAYS_ACK)
-    tcp_timer_reset (tc0, TCP_TIMER_DELACK);
-
   tc0->segs_out += 1;
 }