From: Florin Coras <fcoras@cisco.com>
Date: Fri, 13 Jan 2023 17:44:14 +0000 (-0800)
Subject: vcl: set deq notify flag on epoll connected sessions
X-Git-Tag: v23.06-rc0~19
X-Git-Url: https://gerrit.fd.io/r/gitweb?a=commitdiff_plain;h=1d84abc93ed0f41ee7ced184e57ab9b6241c6eba;p=vpp.git

vcl: set deq notify flag on epoll connected sessions

Type: fix

Signed-off-by: Florin Coras <fcoras@cisco.com>
Change-Id: I021f8e8bba247b0050d390a37dbc75900dc6a598
---

diff --git a/src/vcl/vppcom.c b/src/vcl/vppcom.c
index 57355967900..3b265d29ab8 100644
--- a/src/vcl/vppcom.c
+++ b/src/vcl/vppcom.c
@@ -3098,6 +3098,10 @@ vcl_epoll_wait_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
       /* Generate EPOLLOUT because there's no connected event */
       if (!(EPOLLOUT & session_events))
 	break;
+      /* We didn't have a fifo when the event was added */
+      svm_fifo_add_want_deq_ntf (
+	(vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo),
+	SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
       add_event = 1;
       events[*num_ev].events = EPOLLOUT;
       session_evt_data = s->vep.ev.data.u64;