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Date:   Tue, 15 Dec 2020 16:51:09 -0800
From:   Jakub Kicinski <kuba@...nel.org>
To:     Saeed Mahameed <saeed@...nel.org>
Cc:     "David S. Miller" <davem@...emloft.net>,
        Jason Gunthorpe <jgg@...dia.com>,
        Leon Romanovsky <leonro@...dia.com>, netdev@...r.kernel.org,
        linux-rdma@...r.kernel.org, David Ahern <dsahern@...nel.org>,
        Jacob Keller <jacob.e.keller@...el.com>,
        Sridhar Samudrala <sridhar.samudrala@...el.com>,
        david.m.ertman@...el.com, dan.j.williams@...el.com,
        kiran.patil@...el.com, gregkh@...uxfoundation.org,
        Parav Pandit <parav@...dia.com>, Vu Pham <vuhuong@...dia.com>,
        Saeed Mahameed <saeedm@...dia.com>
Subject: Re: [net-next v5 11/15] net/mlx5: SF, Add port add delete
 functionality

On Tue, 15 Dec 2020 01:03:54 -0800 Saeed Mahameed wrote:
> To handle SF port management outside of the eswitch as independent
> software layer, introduce eswitch notifier APIs so that upper layer who
> wish to support sf port management in switchdev mode can perform its

Could you unpack this? What's the "upper layer" software in this
context?

> task whenever eswitch mode is set to switchdev or before eswitch is
> disabled.

How does SF work if eswich is disabled?

> Initialize sf port table on such eswitch event.
> 
> Add SF port add and delete functionality in switchdev mode.
> Destroy all SF ports when eswitch is disabled.
> Expose SF port add and delete to user via devlink commands.

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