From 648a69759bdf0ce2ac9809a700ce74ab7935ca82 Mon Sep 17 00:00:00 2001
From: Victor Julien <victor@inliniac.net>
Date: Fri, 3 Jun 2016 12:28:09 +0200
Subject: [PATCH] netmap: don't set more than 1 thread on sw ring

---
 src/runmode-netmap.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/runmode-netmap.c b/src/runmode-netmap.c
index ff2e803ab8..8403d0843e 100644
--- a/src/runmode-netmap.c
+++ b/src/runmode-netmap.c
@@ -253,7 +253,10 @@ static void *ParseNetmapConfig(const char *iface_name)
 
 finalize:
 
-    if (aconf->threads == 0) {
+    if (aconf->iface_sw) {
+        /* just one thread per interface supported */
+        aconf->threads = 1;
+    } else if (aconf->threads == 0) {
         /* As NetmapGetRSSCount is broken on Linux, first run
          * GetIfaceRSSQueuesNum. If that fails, run NetmapGetRSSCount */
         aconf->threads = GetIfaceRSSQueuesNum(aconf->iface);