linux-kernel - Re: [PATCH net-next] net: sfp: add quirk for ODI DFP-34X-2C2 GPON ONU SFP

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Date: Fri, 2 Feb 2024 18:44:32 +0100
From: Sergio Palumbo <palumbo.ser@...look.it>
To: "Russell King (Oracle)" <linux@...linux.org.uk>
Cc: Andrew Lunn <andrew@...n.ch>, Heiner Kallweit <hkallweit1@...il.com>,
 "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>,
 Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
 netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH net-next] net: sfp: add quirk for ODI DFP-34X-2C2 GPON ONU
 SFP

Hello Russell,
this is the pach for the vendor "ODI".
Same hardware but different vendor.
I explained it in the description.
Hope this clarifies.

Thanks and regards

Sergio Palumbo

Il 28/01/2024 15:43, Russell King (Oracle) ha scritto:
> Oh, a second repost. What's different from the first repost?
>
> On Sun, Jan 28, 2024 at 03:23:06PM +0100, Sergio Palumbo wrote:
>>       DFP-34X-2C2 is a GPON spf module working at both 1000baseX
>>       and 2500baseX.
>>       Setting the module to LAN_SDS_MODE=6 the module is working
>>       at 2500baseX with auto negotiation see at
>>       https://hack-gpon.org/ont-odi-realtek-dfp-34x-2c2/
>>       Unfortunatly the module's PHY is accessible at 1000baseX only.
>>       ethtool returning:
>>       Supported ports: [ Fibre ]
>>       Supported link modes: 1000baseX/Full
>>
>>       After applying the quirk:
>>       Supported ports: [ Fibre ]
>>       Supported link modes: 1000baseX/Full
>>                             2500baseX/Full
>>       Tested on BANANA PI R3 in OpenWRT v 23.05.2 Kernel 5.15.137
>>       Tested on sfp to ethernet Media Converter.
>>       Autonegotiating 1000baseX or 2500baseX according to the
>>       connected host speed.
>>
>>       This module is existing in 2 versions:
>>       Vendor = "ODI"
>>       Vendor = "OEM"
>>       This is the patch for vendor "ODI"
>>
>>       Patch has been inserted keeping the list in alphabetical order
>>       first by vendor first and then by part string.
>>
>> Signed-off-by: Sergio Palumbo <palumbo.ser@...look.it>
>> ---
>>   drivers/net/phy/sfp.c | 3 +++
>>   1 file changed, 3 insertions(+)
>>
>> diff --git a/drivers/net/phy/sfp.c b/drivers/net/phy/sfp.c
>> index 3c0028a4af92..410375bc6b94 100644
>> --- a/drivers/net/phy/sfp.c
>> +++ b/drivers/net/phy/sfp.c
>> @@ -495,6 +495,9 @@ static const struct sfp_quirk sfp_quirks[] = {
>>   	// 2500MBd NRZ in their EEPROM
>>   	SFP_QUIRK_M("Lantech", "8330-262D-E", sfp_quirk_2500basex),
>>   
>> +	// ODI DFP-34X-2C2 GPON ONU support 2500base-X
>> +	SFP_QUIRK_M("ODI", "DFP-34X-2C2", sfp_quirk_2500basex),
>> +
>>   	SFP_QUIRK_M("UBNT", "UF-INSTANT", sfp_quirk_ubnt_uf_instant),
>>   
>>   	// Walsun HXSX-ATR[CI]-1 don't identify as copper, and use the
>> -- 
>> 2.34.1
>>
>>