From: Lukas Sismis <lsismis@oisf.net>
Date: Fri, 15 Sep 2023 10:15:23 +0000 (-0400)
Subject: dpdk: reset stats just before the start of packet receive loop
X-Git-Tag: suricata-7.0.2~29
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=af4bb917dc9842229445683b5ce2f955faa464c2;p=thirdparty%2Fsuricata.git

dpdk: reset stats just before the start of packet receive loop

While Suricata initializes, the device must be started to e.g.
apply rte_flow rules on some devices. But in the meantime, the
NIC started receiving packets but accounted those as missed.
Stats reset was added to better represent true packet drop.
---

diff --git a/src/source-dpdk.c b/src/source-dpdk.c
index ddbb2976c9..54503e2122 100644
--- a/src/source-dpdk.c
+++ b/src/source-dpdk.c
@@ -373,8 +373,10 @@ static TmEcode ReceiveDPDKLoop(ThreadVars *tv, void *data, void *slot)
     // Indicate that the thread is actually running its application level code (i.e., it can poll
     // packets)
     TmThreadsSetFlag(tv, THV_RUNNING);
-
     PacketPoolWait();
+
+    rte_eth_stats_reset(ptv->port_id);
+    rte_eth_xstats_reset(ptv->port_id);
     while (1) {
         if (unlikely(suricata_ctl_flags != 0)) {
             SCLogDebug("Stopping Suricata!");