From ffdc841841fd9ed727aca54fe914b71098b4f5e8 Mon Sep 17 00:00:00 2001
From: Ron He <zecheng@meta.com>
Date: Mon, 19 Aug 2024 01:30:55 -0700
Subject: [PATCH] Default value for Port attr Reachability Group

Summary: As titled. If SDK does not support reaching reachability group (J3), return default 0 value.

Reviewed By: shri-khare, srikrishnagopu

Differential Revision: D61458742

fbshipit-source-id: 9f5bcb7f8305f4b9b92326730893765f1f0cb8cd
---
 fboss/agent/hw/sai/api/PortApi.h | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/fboss/agent/hw/sai/api/PortApi.h b/fboss/agent/hw/sai/api/PortApi.h
index 4e66e7de6a896..38ef69766056c 100644
--- a/fboss/agent/hw/sai/api/PortApi.h
+++ b/fboss/agent/hw/sai/api/PortApi.h
@@ -415,8 +415,10 @@ struct SaiPortTraits {
     struct AttributeReachabilityGroup {
       std::optional<sai_attr_id_t> operator()();
     };
-    using ReachabilityGroup =
-        SaiExtensionAttribute<sai_uint32_t, AttributeReachabilityGroup>;
+    using ReachabilityGroup = SaiExtensionAttribute<
+        sai_uint32_t,
+        AttributeReachabilityGroup,
+        SaiIntDefault<sai_uint32_t>>;
   };
   using AdapterKey = PortSaiId;