From bd3ff678b733964c689b52ff1b0d2c838edeb8b8 Mon Sep 17 00:00:00 2001
From: Christian Poessinger <christian@poessinger.com>
Date: Thu, 17 Dec 2020 18:30:16 +0100
Subject: xdp: T2666: initial XDP (generic mode) forwarding support

The CLI command 'set interfaces ethernet <interface> offload-options xdp" enables
the XDP generic mode on the given interface.

vyos@vyos:~$ show interfaces ethernet eth1
eth1: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 xdpgeneric/id:151 qdisc mq state DOWN group default qlen 1000
    link/ether 00:50:56:bf:ef:aa brd ff:ff:ff:ff:ff:ff
    inet6 fe80::250:56ff:febf:efaa/64 scope link tentative
       valid_lft forever preferred_lft forever
    Description: fooa

XDP code is thankfully copied from [1], thank you for this nice tutorial.

NOTE: this is an experimental feature which might break your
forwarding/filtering.

[1]: https://medium.com/swlh/building-a-xdp-express-data-path-based-peering-router-20db4995da66
---
 interface-definitions/interfaces-ethernet.xml.in | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'interface-definitions')

diff --git a/interface-definitions/interfaces-ethernet.xml.in b/interface-definitions/interfaces-ethernet.xml.in
index 0337c629b..8bd9b7010 100644
--- a/interface-definitions/interfaces-ethernet.xml.in
+++ b/interface-definitions/interfaces-ethernet.xml.in
@@ -165,6 +165,12 @@
                   <constraintErrorMessage>Must be either 'on' or 'off'</constraintErrorMessage>
                 </properties>
               </leafNode>
+              <leafNode name="xdp">
+                <properties>
+                  <help>Enable eXpress Data Path</help>
+                  <valueless/>
+                </properties>
+              </leafNode>
             </children>
           </node>
           <leafNode name="speed">
-- 
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