netdev - Re: [PATCH net v1 1/1] ethtool: netlink: do not return SQI value if link is down

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Message-ID: <392fd432-3e2d-4223-ab97-c3548430734a@lunn.ch>
Date: Mon, 8 Jul 2024 15:29:47 +0200
From: Andrew Lunn <andrew@...n.ch>
To: Oleksij Rempel <o.rempel@...gutronix.de>
Cc: Michal Kubecek <mkubecek@...e.cz>, Woojung.Huh@...rochip.com,
	Arun Ramadoss <arun.ramadoss@...rochip.com>,
	Jiri Pirko <jiri@...nulli.us>,
	Vladimir Oltean <vladimir.oltean@....com>,
	linux-kernel@...r.kernel.org, UNGLinuxDriver@...rochip.com,
	Eric Dumazet <edumazet@...gle.com>, kernel@...gutronix.de,
	netdev@...r.kernel.org, Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>,
	"David S. Miller" <davem@...emloft.net>
Subject: Re: [PATCH net v1 1/1] ethtool: netlink: do not return SQI value if
 link is down

> If -ENETDOWN is returned:
> Settings for spe4:
>         Supported ports: [ TP ]
>         Supported link modes:   100baseT1/Fulli
>         Supported pause frame use: No
>         Supports auto-negotiation: No
>         Supported FEC modes: Not reported
>         Advertised link modes:  100baseT1/Full
>         Advertised pause frame use: No
>         Advertised auto-negotiation: No
>         Advertised FEC modes: Not reported
>         Speed: 100Mb/s
>         Duplex: Full
>         Auto-negotiation: off
>         master-slave cfg: forced slave
>         master-slave status: unknown
>         Port: Twisted Pair
>         PHYAD: 6
>         Transceiver: external
>         MDI-X: Unknown
>         Supports Wake-on: d
>         Wake-on: d
> netlink error: Network is down
> 
> Instead of "Link detected: no", we will get netlink error.

Thanks. This is not great. There was a slim chance it looked at each
individual return value, and would of put "SQI: Network is down", but
it does not. So not including the value does seem the best.

	Andrew