xdp: use common include for both ethernet and bond

1 files changed, 24 insertions, 0 deletions

diff --git a/docs/_include/interface-xdp.txt b/docs/_include/interface-xdp.txt
new file mode 100644
index 00000000..6f5f88c1
--- /dev/null
+++ b/docs/_include/interface-xdp.txt
@@ -0,0 +1,24 @@
+.. cfgcmd:: set interfaces {{ var0 }} <interface> xdp
+
+  Enable support for Linux :abbr:`XDP (eXpress Data Path)` on recent 1.3 rolling
+  releases. You must enable it for every interface which should participate in
+  the XDP forwarding.
+
+  XDP is an eBPF based high performance data path merged in the Linux kernel
+  since version 4.8. The idea behind XDP is to add an early hook in the RX path
+  of the kernel, and let a user supplied eBPF program decide the fate of the
+  packet. The hook is placed in the NIC driver just after the interrupt
+  processing, and before any memory allocation needed by the network stack
+  itself, because memory allocation can be an expensive operation.
+
+  .. warning:: This is highly experimental!
+
+  .. note:: Enabling this feature will break any form of NAT or Firewalling on
+    this interface, as XDP is handled way earlier in the driver then iptables/
+    nftables.
+
+  Example:
+
+  .. code-block:: none
+
+    set interfaces {{ var0 }} {{ var1 }} xdp
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