- 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;
+
+ max_pkts = clib_min (VLIB_FRAME_SIZE - *n_tx_packets,
+ TRANSPORT_PACER_MAX_BURST_PKTS);
+ n_packets = transport_custom_tx (session_get_transport_proto (s), s,
+ max_pkts);
+ *n_tx_packets -= n_packets;
+
+ if (svm_fifo_max_dequeue_cons (s->tx_fifo)
+ || (s->flags & SESSION_F_CUSTOM_TX))
+ {
+ session_evt_add_old (wrk, elt);
+ }
+ else
+ {
+ 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;