session tls: support tls descheduling

[vpp.git] / src / vnet / session / session_node.c

diff --git a/src/vnet/session/session_node.c b/src/vnet/session/session_node.c
index c2a6ec9..f023a95 100644 (file)
--- a/src/vnet/session/session_node.c
+++ b/src/vnet/session/session_node.c
@@ -872,7 +872,8 @@ session_tx_fifo_read_and_snd_i (session_worker_t * wrk,
     {
       u32 n_custom_tx;
       ctx->s->flags &= ~SESSION_F_CUSTOM_TX;
-      n_custom_tx = ctx->transport_vft->custom_tx (ctx->tc, max_burst);
+      ctx->sp.max_burst_size = max_burst;
+      n_custom_tx = ctx->transport_vft->custom_tx (ctx->tc, &ctx->sp);
       *n_tx_packets += n_custom_tx;
       if (PREDICT_FALSE
          (ctx->s->session_state >= SESSION_STATE_TRANSPORT_CLOSED))
@@ -1066,15 +1067,37 @@ session_tx_fifo_dequeue_and_snd (session_worker_t * wrk,
 int
 session_tx_fifo_dequeue_internal (session_worker_t * wrk,
                                  vlib_node_runtime_t * node,
-                                 session_evt_elt_t * e, int *n_tx_packets)
+                                 session_evt_elt_t * elt, int *n_tx_packets)
 {
+  transport_send_params_t *sp = &wrk->ctx.sp;
   session_t *s = wrk->ctx.s;
+  u32 n_packets;
 
   if (PREDICT_FALSE (s->session_state >= SESSION_STATE_TRANSPORT_CLOSED))
     return 0;
-  svm_fifo_unset_event (s->tx_fifo);
-  return transport_custom_tx (session_get_transport_proto (s), s,
-                             VLIB_FRAME_SIZE - *n_tx_packets);
+
+  /* Clear custom-tx flag used to request reschedule for tx */
+  s->flags &= ~SESSION_F_CUSTOM_TX;
+
+  sp->max_burst_size = clib_min (VLIB_FRAME_SIZE - *n_tx_packets,
+                                TRANSPORT_PACER_MAX_BURST_PKTS);
+
+  n_packets = transport_custom_tx (session_get_transport_proto (s), s, sp);
+  *n_tx_packets += n_packets;
+
+  if (s->flags & SESSION_F_CUSTOM_TX)
+    {
+      session_evt_add_old (wrk, elt);
+    }
+  else if (!(sp->flags & TRANSPORT_SND_F_DESCHED))
+    {
+      svm_fifo_unset_event (s->tx_fifo);
+      if (svm_fifo_max_dequeue_cons (s->tx_fifo))
+       if (svm_fifo_set_event (s->tx_fifo))
+         session_evt_add_head_old (wrk, elt);
+    }
+
+  return n_packets;
 }
 
 always_inline session_t *