From: Florin Coras <fcoras@cisco.com>
Date: Fri, 8 Nov 2019 23:32:05 +0000 (-0800)
Subject: session: re-set tx fifo event if out of buffers
X-Git-Tag: v20.05-rc0~408
X-Git-Url: https://gerrit.fd.io/r/gitweb?p=vpp.git;a=commitdiff_plain;h=aa43914df656bbd7340b8dbd68f23f8fe0aabfd5

session: re-set tx fifo event if out of buffers

Type: fix

Change-Id: I7416e827fbc5c63d082273656441c81dd6246d8a
Signed-off-by: Florin Coras <fcoras@cisco.com>
---

diff --git a/src/vnet/session/session_node.c b/src/vnet/session/session_node.c
index 865c8b7a607..e1114b794e6 100644
--- a/src/vnet/session/session_node.c
+++ b/src/vnet/session/session_node.c
@@ -903,7 +903,8 @@ session_tx_fifo_read_and_snd_i (session_worker_t * wrk,
     {
       if (n_bufs)
 	vlib_buffer_free (vm, wrk->tx_buffers, n_bufs);
-      session_evt_add_head_old (wrk, elt);
+      if (svm_fifo_set_event (ctx->s->tx_fifo))
+	session_evt_add_head_old (wrk, elt);
       vlib_node_increment_counter (wrk->vm, node->node_index,
 				   SESSION_QUEUE_ERROR_NO_BUFFER, 1);
       return SESSION_TX_NO_BUFFERS;