From 830be93f7abdf50b3718bba0e628781fc8b18c02 Mon Sep 17 00:00:00 2001
From: mint570 <runmingwu@google.com>
Date: Thu, 28 May 2026 12:20:39 +0000
Subject: [PATCH] Copy BCM sairouterinterface extensions to SAI repository.

Signed-off-by: SRAVANI KANASANI <kanasanis@google.com>
---
 experimental/saiextensions.h                |  1 +
 experimental/sairouterinterfaceextensions.h | 83 +++++++++++++++++++++
 inc/sainexthopgroup.h                       | 11 +++
 3 files changed, 95 insertions(+)
 create mode 100644 experimental/sairouterinterfaceextensions.h

diff --git a/experimental/saiextensions.h b/experimental/saiextensions.h
index f43ee480a..c6a09a145 100644
--- a/experimental/saiextensions.h
+++ b/experimental/saiextensions.h
@@ -32,6 +32,7 @@
 #include "saitypesextensions.h"
 #include "saiswitchextensions.h"
 #include "saiportextensions.h"
+#include "sairouterinterfaceextensions.h"
 
 /* new experimental object type includes */
 #include "saiexperimentaldashtrustedvni.h"
diff --git a/experimental/sairouterinterfaceextensions.h b/experimental/sairouterinterfaceextensions.h
new file mode 100644
index 000000000..694f00b71
--- /dev/null
+++ b/experimental/sairouterinterfaceextensions.h
@@ -0,0 +1,83 @@
+/**
+ * Copyright (c) 2026 Microsoft Open Technologies, Inc.
+ *
+ *    Licensed under the Apache License, Version 2.0 (the "License"); you may
+ *    not use this file except in compliance with the License. You may obtain
+ *    a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *    THIS CODE IS PROVIDED ON AN *AS IS* BASIS, WITHOUT WARRANTIES OR
+ *    CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT
+ *    LIMITATION ANY IMPLIED WARRANTIES OR CONDITIONS OF TITLE, FITNESS
+ *    FOR A PARTICULAR PURPOSE, MERCHANTABILITY OR NON-INFRINGEMENT.
+ *
+ *    See the Apache Version 2.0 License for specific language governing
+ *    permissions and limitations under the License.
+ *
+ *    Microsoft would like to thank the following companies for their review and
+ *    assistance with these files: Intel Corporation, Mellanox Technologies Ltd,
+ *    Dell Products, L.P., Facebook, Inc., Marvell International Ltd.
+ *
+ * @file    sairouterinterfaceextensions.h
+ *
+ * @brief   This module defines router interface extensions of the Switch Abstraction Interface (SAI)
+ */
+
+#ifndef __SAIROUTERINTERFACEEXTENSIONS_H_
+#define __SAIROUTERINTERFACEEXTENSIONS_H_
+
+#include <saitypes.h>
+#include <sairouterinterface.h>
+
+/**
+ * @brief SAI router interface attribute extensions.
+ *
+ * @flags free
+ */
+typedef enum _sai_router_interface_attr_extensions_t
+{
+    /**
+     * @brief SAG support
+     *
+     * @type bool
+     * @flags CREATE_AND_SET
+     * @default false
+     */
+    SAI_ROUTER_INTERFACE_ATTR_ANYCAST_MAC_SUPPORT = SAI_ROUTER_INTERFACE_ATTR_END,
+
+    /**
+     * @brief MAC Address
+     *
+     * valid when SAI_ROUTER_INTERFACE_ATTR_TYPE != SAI_ROUTER_INTERFACE_TYPE_LOOPBACK
+     *
+     * @type sai_mac_t
+     * @flags CREATE_AND_SET
+     * @default attrvalue SAI_VIRTUAL_ROUTER_ATTR_SRC_MAC_ADDRESS
+     */
+    SAI_ROUTER_INTERFACE_ATTR_SRC_MAC_ADDRESS_RIF_UPDATE,
+
+    /**
+     * @brief MAC Address
+     *
+     * valid when SAI_ROUTER_INTERFACE_ATTR_TYPE != SAI_ROUTER_INTERFACE_TYPE_LOOPBACK
+     *
+     * @type sai_mac_t
+     * @flags CREATE_AND_SET
+     * @default attrvalue SAI_VIRTUAL_ROUTER_ATTR_SRC_MAC_ADDRESS
+     */
+    SAI_ROUTER_INTERFACE_ATTR_PEER_SRC_MAC_ADDRESS,
+
+    /**
+     * @brief Disable VLAN and port-VLAN membership programming
+     *
+     * valid when SAI_ROUTER_INTERFACE_ATTR_TYPE == SAI_ROUTER_INTERFACE_TYPE_SUB_PORT
+     *
+     * @type bool
+     * @flags CREATE_ONLY
+     * @default false
+     */
+    SAI_ROUTER_INTERFACE_ATTR_DISABLE_SUB_PORT_VLAN_CONFIG
+
+} sai_router_interface_attr_extensions_t;
+
+#endif /* __SAIROUTERINTERFACEEXTENSIONS_H_ */
+
diff --git a/inc/sainexthopgroup.h b/inc/sainexthopgroup.h
index a34e9fdf6..4d57ac00f 100644
--- a/inc/sainexthopgroup.h
+++ b/inc/sainexthopgroup.h
@@ -359,6 +359,17 @@ typedef enum _sai_next_hop_group_attr_t
      */
     SAI_NEXT_HOP_GROUP_ATTR_ADMIN_ROLE,
 
+    /**
+     * @brief Weighted multi path configuration mode.
+     * false: Nexthop group is programmed with repeated member entries proportional to their weight
+     * true: Nexthop group is programmed with switch native configuration
+     *
+     * @type bool
+     * @flags CREATE_AND_SET
+     * @default false
+     */
+    SAI_NEXT_HOP_GROUP_ATTR_NATIVE_WCMP,
+
     /**
      * @brief End of attributes
      */