netdev - Re: tn40xx / qt2025: cannot load firmware, error -2

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Message-Id: <20250305.084858.1138848711250818607.fujita.tomonori@gmail.com>
Date: Wed, 05 Mar 2025 08:48:58 +0900 (JST)
From: FUJITA Tomonori <fujita.tomonori@...il.com>
To: andrew@...n.ch
Cc: max.schulze@...ine.de, fujita.tomonori@...il.com, hfdevel@....net,
 netdev@...r.kernel.org
Subject: Re: tn40xx / qt2025: cannot load firmware, error -2

On Tue, 4 Mar 2025 18:55:02 +0100
Andrew Lunn <andrew@...n.ch> wrote:

>> Does it really only support 10GBe, and not 1GBe or 100BaseSX ?
>> > $ sudo ethtool enp3s0
>> > Settings for enp3s0:
>> > 	Supported ports: [  ]
>> > 	Supported link modes:   10000baseSR/Full
>> > 	Supported pause frame use: No
>> > 	Supports auto-negotiation: No
>> > 	Supported FEC modes: Not reported
>> > 	Advertised link modes:  10000baseSR/Full
>> > 	Advertised pause frame use: No
>> > 	Advertised auto-negotiation: No
>> > 	Advertised FEC modes: Not reported
>> > 	Speed: 10000Mb/s
>> > 	Duplex: Full
>> > 	Auto-negotiation: off
>> > 	Port: Twisted Pair
>> > 	PHYAD: 1
>> > 	Transceiver: external
>> > 	MDI-X: Unknown
>> > 	Link detected: yes
> 
> From my reading of the PHY datasheet, it can do 1000Base-KX, but there
> is no mention of 100BaseSX. There is also limited access to the i2c
> eeprom in the SFP, so ethtool -m could be implemented.

Yeah, I have not yet found a way to implement the ethtool operation
that accesses the SFP and returns the appropriate information.