From 42ca28f2956fc7a5a1dc591714410d5423d90f73 Mon Sep 17 00:00:00 2001
From: Christian Breunig <christian@breunig.cc>
Date: Sat, 11 May 2024 14:12:31 +0200
Subject: ethernet: T6306: add support for EVPN MH uplink/core tracking

When all the underlay links go down the PE no longer has access to the VxLAN
+overlay.

To prevent blackholing of traffic the server/ES links are protodowned on the PE.
A link can be setup for uplink tracking via the following configuration:

set interfaces ethernet eth0 evpn uplink

(cherry picked from commit 5565f27d15c5e7378e94aae8db8a894a12e25d7b)
---
 interface-definitions/include/interface/evpn-mh-uplink.xml.i | 8 ++++++++
 interface-definitions/interfaces_bonding.xml.in              | 7 +------
 interface-definitions/interfaces_ethernet.xml.in             | 8 ++++++++
 3 files changed, 17 insertions(+), 6 deletions(-)
 create mode 100644 interface-definitions/include/interface/evpn-mh-uplink.xml.i

(limited to 'interface-definitions')

diff --git a/interface-definitions/include/interface/evpn-mh-uplink.xml.i b/interface-definitions/include/interface/evpn-mh-uplink.xml.i
new file mode 100644
index 000000000..5f7fe1b7f
--- /dev/null
+++ b/interface-definitions/include/interface/evpn-mh-uplink.xml.i
@@ -0,0 +1,8 @@
+<!-- include start from interface/evpn-mh-uplink.xml.i -->
+<leafNode name="uplink">
+  <properties>
+    <help>Uplink to the VXLAN core</help>
+    <valueless/>
+  </properties>
+</leafNode>
+<!-- include end -->
diff --git a/interface-definitions/interfaces_bonding.xml.in b/interface-definitions/interfaces_bonding.xml.in
index e6baed590..cc0327f3d 100644
--- a/interface-definitions/interfaces_bonding.xml.in
+++ b/interface-definitions/interfaces_bonding.xml.in
@@ -102,12 +102,7 @@
                   </constraint>
                 </properties>
               </leafNode>
-              <leafNode name="uplink">
-                <properties>
-                  <help>Uplink to the VXLAN core</help>
-                  <valueless/>
-                </properties>
-              </leafNode>
+              #include <include/interface/evpn-mh-uplink.xml.i>
             </children>
           </node>
           <leafNode name="hash-policy">
diff --git a/interface-definitions/interfaces_ethernet.xml.in b/interface-definitions/interfaces_ethernet.xml.in
index 4e55bac7c..89f990d41 100644
--- a/interface-definitions/interfaces_ethernet.xml.in
+++ b/interface-definitions/interfaces_ethernet.xml.in
@@ -57,6 +57,14 @@
             <defaultValue>auto</defaultValue>
           </leafNode>
           #include <include/interface/eapol.xml.i>
+          <node name="evpn">
+            <properties>
+              <help>EVPN Multihoming</help>
+            </properties>
+            <children>
+              #include <include/interface/evpn-mh-uplink.xml.i>
+            </children>
+          </node>
           #include <include/interface/hw-id.xml.i>
           #include <include/interface/ipv4-options.xml.i>
           #include <include/interface/ipv6-options.xml.i>
-- 
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