From 4b2fef88644bb75dadbe33b9638a4150def7e14f Mon Sep 17 00:00:00 2001
From: Viacheslav <v.gletenko@vyos.io>
Date: Thu, 17 Jun 2021 19:50:19 +0000
Subject: ethernet: T3633: Add LRO offload

---
 interface-definitions/interfaces-ethernet.xml.in |  6 ++++++
 python/vyos/ifconfig/ethernet.py                 | 20 ++++++++++++++++++++
 2 files changed, 26 insertions(+)

diff --git a/interface-definitions/interfaces-ethernet.xml.in b/interface-definitions/interfaces-ethernet.xml.in
index 942f88d0a..cb451f5be 100644
--- a/interface-definitions/interfaces-ethernet.xml.in
+++ b/interface-definitions/interfaces-ethernet.xml.in
@@ -80,6 +80,12 @@
                   <valueless/>
                 </properties>
               </leafNode>
+              <leafNode name="lro">
+                <properties>
+                  <help>Enable Large Receive Offload</help>
+                  <valueless/>
+                </properties>
+              </leafNode>
               <leafNode name="rps">
                 <properties>
                   <help>Enable Receive Packet Steering</help>
diff --git a/python/vyos/ifconfig/ethernet.py b/python/vyos/ifconfig/ethernet.py
index b89ca5a5c..07b31a12a 100644
--- a/python/vyos/ifconfig/ethernet.py
+++ b/python/vyos/ifconfig/ethernet.py
@@ -55,6 +55,11 @@ class EthernetIf(Interface):
             'possible': lambda i, v: EthernetIf.feature(i, 'gso', v),
             # 'shellcmd': 'ethtool -K {ifname} gso {value}',
         },
+        'lro': {
+            'validate': lambda v: assert_list(v, ['on', 'off']),
+            'possible': lambda i, v: EthernetIf.feature(i, 'lro', v),
+            # 'shellcmd': 'ethtool -K {ifname} lro {value}',
+        },
         'sg': {
             'validate': lambda v: assert_list(v, ['on', 'off']),
             'possible': lambda i, v: EthernetIf.feature(i, 'sg', v),
@@ -238,6 +243,18 @@ class EthernetIf(Interface):
             raise ValueError("Value out of range")
         return self.set_interface('gso', 'on' if state else 'off')
 
+    def set_lro(self, state):
+        """
+        Enable Large Receive offload. State can be either True or False.
+        Example:
+        >>> from vyos.ifconfig import EthernetIf
+        >>> i = EthernetIf('eth0')
+        >>> i.set_lro(True)
+        """
+        if not isinstance(state, bool):
+            raise ValueError("Value out of range")
+        return self.set_interface('lro', 'on' if state else 'off')
+
     def set_rps(self, state):
         if not isinstance(state, bool):
             raise ValueError("Value out of range")
@@ -328,6 +345,9 @@ class EthernetIf(Interface):
         # GSO (generic segmentation offload)
         self.set_gso(dict_search('offload.gso', config) != None)
 
+        # LRO (large receive offload)
+        self.set_lro(dict_search('offload.lro', config) != None)
+
         # RPS - Receive Packet Steering
         self.set_rps(dict_search('offload.rps', config) != None)
 
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