From 434a641026fa69c35a68d1950c3ad1cccd289a84 Mon Sep 17 00:00:00 2001
From: Sudharsan Dhamal Gopalarathnam <dgsudharsan@users.noreply.github.com>
Date: Tue, 12 Oct 2021 18:16:13 -0700
Subject: [PATCH] [DPB][Mellanox]Fixing DPB modes in Mellanox-SN2700-D40C8S8
 (#8953)

#### Why I did it
Fixing https://github.com/Azure/sonic-buildimage/issues/8938
Fixing 1x10G DPB mode in Mellanox-SN2700-D40C8S8 SKU as it was causing sonic-cfggen to fail.


#### How I did it
Added correct mode format in hwksu.json in Mellanox-SN2700-D40C8S8  and updated platform.json for the new mode.


#### How to verify it
Using sonic-cfggen verify it works fine
---
 .../Mellanox-SN2700-D40C8S8/hwsku.json           | 16 ++++++++--------
 .../x86_64-mlnx_msn2700-r0/platform.json         |  6 ++++--
 2 files changed, 12 insertions(+), 10 deletions(-)

diff --git a/device/mellanox/x86_64-mlnx_msn2700-r0/Mellanox-SN2700-D40C8S8/hwsku.json b/device/mellanox/x86_64-mlnx_msn2700-r0/Mellanox-SN2700-D40C8S8/hwsku.json
index 1ac7b9e06324..63a3005ad591 100644
--- a/device/mellanox/x86_64-mlnx_msn2700-r0/Mellanox-SN2700-D40C8S8/hwsku.json
+++ b/device/mellanox/x86_64-mlnx_msn2700-r0/Mellanox-SN2700-D40C8S8/hwsku.json
@@ -1,31 +1,31 @@
 {
     "interfaces": {
         "Ethernet0": {
-            "default_brkout_mode": "1x10G"
+            "default_brkout_mode": "4x10G[25G]"
         }, 
         "Ethernet1": {
-            "default_brkout_mode": "1x10G"
+            "default_brkout_mode": "4x10G[25G]"
         }, 
         "Ethernet2": {
-            "default_brkout_mode": "1x10G"
+            "default_brkout_mode": "4x10G[25G]"
         }, 
         "Ethernet3": {
-            "default_brkout_mode": "1x10G"
+            "default_brkout_mode": "4x10G[25G]"
         }, 
         "Ethernet4": {
             "default_brkout_mode": "1x100G[50G,40G,25G,10G]"
         }, 
         "Ethernet8": {
-            "default_brkout_mode": "1x10G"
+            "default_brkout_mode": "4x10G[25G]"
         }, 
         "Ethernet9": {
-            "default_brkout_mode": "1x10G"
+            "default_brkout_mode": "4x10G[25G]"
         }, 
         "Ethernet10": {
-            "default_brkout_mode": "1x10G"
+            "default_brkout_mode": "4x10G[25G]"
         }, 
         "Ethernet11": {
-            "default_brkout_mode": "1x10G"
+            "default_brkout_mode": "4x10G[25G]"
         }, 
         "Ethernet12": {
             "default_brkout_mode": "1x100G[50G,40G,25G,10G]"
diff --git a/device/mellanox/x86_64-mlnx_msn2700-r0/platform.json b/device/mellanox/x86_64-mlnx_msn2700-r0/platform.json
index 063a211e785c..fab5ea6bf11c 100644
--- a/device/mellanox/x86_64-mlnx_msn2700-r0/platform.json
+++ b/device/mellanox/x86_64-mlnx_msn2700-r0/platform.json
@@ -381,7 +381,8 @@
             "lanes": "0,1,2,3",
             "breakout_modes": {
                 "1x100G[50G,40G,25G,10G]": ["etp1"],
-                "2x50G[25G,10G]": ["etp1a", "etp1b"]
+                "2x50G[25G,10G]": ["etp1a", "etp1b"],
+                "4x10G[25G]": ["etp1a", "etp1b", "etp1c", "etp1d"]
             }
         },
         "Ethernet4": {
@@ -397,7 +398,8 @@
             "lanes": "8,9,10,11",
             "breakout_modes": {
                 "1x100G[50G,40G,25G,10G]": ["etp3"],
-                "2x50G[25G,10G]": ["etp3a", "etp3b"]
+                "2x50G[25G,10G]": ["etp3a", "etp3b"],
+                "4x10G[25G]": ["etp3a", "etp3b", "etp3c", "etp3d"]
             }
         },
         "Ethernet12": {