From: Eric Leblond <eric@regit.org>
Date: Sun, 21 Apr 2019 18:57:03 +0000 (+0200)
Subject: ebpf: add comment for some define in XDP filter
X-Git-Tag: suricata-5.0.0-rc1~329
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7e8f4b70f0334d285555f11048c203ea908a6b13;p=thirdparty%2Fsuricata.git

ebpf: add comment for some define in XDP filter
---

diff --git a/ebpf/xdp_filter.c b/ebpf/xdp_filter.c
index 1ab54309fe..daeb97a8f9 100644
--- a/ebpf/xdp_filter.c
+++ b/ebpf/xdp_filter.c
@@ -42,8 +42,11 @@
 /* Increase CPUMAP_MAX_CPUS if ever you have more than 64 CPUs */
 #define CPUMAP_MAX_CPUS     64
 
-#define USE_PERCPU_HASH    1
-#define GOT_TX_PEER	1
+/* Set it to 0 if for example you plan to use the XDP filter in a
+ * network card that don't support per CPU value (like netronome) */
+#define USE_PERCPU_HASH     1
+/* Set it to 0 if your XDP subsytem don't handle XDP_REDIRECT (like netronome) */
+#define GOT_TX_PEER         1
 
 /* set to non 0 to load balance in hardware mode on RSS_QUEUE_NUMBERS queues
  * and unset BUILD_CPUMAP (number must be a power of 2 for netronome) */