netdev - Re: [PATCH net-next v2 2/3] net: ethernet: ti: Register the RPMsg driver as network device

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Date: Wed, 12 Jun 2024 16:36:35 +0200
From: Andrew Lunn <andrew@...n.ch>
To: Yojana Mallik <y-mallik@...com>
Cc: schnelle@...ux.ibm.com, wsa+renesas@...g-engineering.com,
	diogo.ivo@...mens.com, rdunlap@...radead.org, horms@...nel.org,
	vigneshr@...com, rogerq@...com, danishanwar@...com,
	pabeni@...hat.com, kuba@...nel.org, edumazet@...gle.com,
	davem@...emloft.net, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, srk@...com, rogerq@...nel.org,
	Siddharth Vadapalli <s-vadapalli@...com>
Subject: Re: [PATCH net-next v2 2/3] net: ethernet: ti: Register the RPMsg
 driver as network device

> No, RTOS the peer is not telling the Linux machine what MAC address to use. The
> user can add a unicast mac address to the virtual network interface using the
> following steps:
> 
> Steps to add MAC Address
> # Bring down the virtual port interface
> $ ifconfig eth1 down
> # Set MAC address for the virtual port interface, ex 01:02:03:04:05:06
> $ ifconfig eth1 hw ether 01:02:03:04:05:06
> # Bring the interface up
> $ ifconfig eth1 up

ifconfig is long deprecated, replaced by iproute2. Please don't use it
for anything modern.

> While adidng the mac address, ndo ops will call set_mac_address which will call
> create_send_request which will create a request with command add mac address
> and send a rpmsg to R5 core.

The protocol documentation should be at a level that your can give it
to somebody else and they can implement it, e.g. for a different
OS. So please make the documentation clearer, what direction are these
messages flowing. And make the protocol description OS agnostic.

	Andrew