[202205][mellanox][ssm]: Enable Store-And-Forward switching mode

[nazariig]

Signed-off-by: Nazarii Hnydyn nazariig@nvidia.com

BACKPORT: #16781

Why I did it

• To enable Store-And-Forward switching mode for SN2700/SN3800/SN4600C/SN4700

Work item tracking

• N/A

How I did it

• Added vendor SAI config options

How to verify it

1. make configure PLATFORM=mellanox
2. make target/sonic-mellanox.bin

Which release branch to backport (provide reason below if selected)

• 201811
• 201911
• 202006
• 202012
• 202106
• 202111
• 202205
• 202211
• 202305

Tested branch (Please provide the tested image version)

• 202205

Description for the changelog

• N/A

Link to config_db schema for YANG module changes

• N/A

A picture of a cute animal (not mandatory but encouraged)

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   //////   ' \/ `   ---
  //// / // :    : ---
 // /   /  /`    '--
//          //..\\
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           '//||\\`
             ''``

[bingwang-ms]

Does this change depend on certain SAI change? Or only changing sai profile is enough?

[bingwang-ms]

MSFT ADO: 24668711

[nazariig]

Does this change depend on certain SAI change? Or only changing sai profile is enough?

@bingwang-ms yes. The new SAI is a must in addition to these changes. We will upstream it soon