netdev - Re: [PATCH net-next v2 1/3] selftests: nic_basic_tests: Add selftest file for basic tests of NIC

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Message-ID: <0d6c225e-358b-401e-a4aa-a1f7ea0f2652@lunn.ch>
Date: Wed, 18 Sep 2024 14:05:34 +0200
From: Andrew Lunn <andrew@...n.ch>
To: Mohan.Prasad@...rochip.com
Cc: netdev@...r.kernel.org, davem@...emloft.net, kuba@...nel.org,
	edumazet@...gle.com, pabeni@...hat.com, shuah@...nel.org,
	linux-kernel@...r.kernel.org, linux-kselftest@...r.kernel.org,
	horms@...nel.org, brett.creeley@....com, rosenp@...il.com,
	UNGLinuxDriver@...rochip.com, willemb@...gle.com
Subject: Re: [PATCH net-next v2 1/3] selftests: nic_basic_tests: Add selftest
 file for basic tests of NIC

> > Since you have batteries included python:
> > 
> > ethtool --json enp2s0
> > [sudo] password for andrew:
> > [ {
> >         "ifname": "enp2s0",
> >         "supported-ports": [ "TP","MII" ],
> >         "supported-link-modes": [
> > "10baseT/Half","10baseT/Full","100baseT/Half","100baseT/Full","1000baseT/
> > Full" ],
> >         "supported-pause-frame-use": "Symmetric Receive-only",
> >         "supports-auto-negotiation": true,
> >         "supported-fec-modes": [ ],
> >         "advertised-link-modes": [
> > "10baseT/Half","10baseT/Full","100baseT/Half","100baseT/Full","1000baseT/
> > Full" ],
> >         "advertised-pause-frame-use": "Symmetric Receive-only",
> >         "advertised-auto-negotiation": true,
> >         "advertised-fec-modes": [ ],
> >         "auto-negotiation": false,
> >         "master-slave-cfg": "preferred slave",
> >         "master-slave-status": "unknown",
> >         "port": "Twisted Pair",
> >         "phyad": 0,
> >         "transceiver": "external",
> >         "supports-wake-on": "pumbg",
> >         "wake-on": "d",
> >         "link-detected": false
> >     } ]
> > 
> > You can use a json library to do all the parsing for you.
> 
> I tried running the --json option with the ethtool ("ethtool --json enp9s0"), however I am not getting the above output.
> Instead it always throws "ethtool: bad command line argument(s)"
> I am figuring out what might be missing (or any suggestions would be helpful).

Are you using real ethtool, or busybox? What version of ethtool? I'm
using 6.10, but it looks like JSON support was added somewhere around
5.10.

	Andrew