From: Lukas Sismis <lsismis@oisf.net>
Date: Sat, 29 Mar 2025 12:36:51 +0000 (+0100)
Subject: dpdk: adjust auto mempool calculation when no TX queues set
X-Git-Tag: suricata-8.0.0-beta1~165
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=9272fd9d9849ef4ba145ca333046ec80e9a62a13;p=thirdparty%2Fsuricata.git

dpdk: adjust auto mempool calculation when no TX queues set
---

diff --git a/src/runmode-dpdk.c b/src/runmode-dpdk.c
index d16c65df34..ee0665d27d 100644
--- a/src/runmode-dpdk.c
+++ b/src/runmode-dpdk.c
@@ -515,7 +515,11 @@ static int ConfigSetTxQueues(
 static uint32_t MempoolSizeCalculate(
         uint32_t rx_queues, uint32_t rx_desc, uint32_t tx_queues, uint32_t tx_desc)
 {
-    return rx_queues * rx_desc + tx_queues * tx_desc;
+    uint32_t sz = rx_queues * rx_desc + tx_queues * tx_desc;
+    if (!tx_queues || !tx_desc)
+        sz *= 2; // double to have enough space for RX descriptors
+
+    return sz;
 }
 
 static int ConfigSetMempoolSize(DPDKIfaceConfig *iconf, const char *entry_str)