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

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Message-ID: <ZbZoDIPR3O/iei5z@shell.armlinux.org.uk>
Date: Sun, 28 Jan 2024 14:43:24 +0000
From: "Russell King (Oracle)" <linux@...linux.org.uk>
To: Sergio Palumbo <palumbo.ser@...look.it>
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

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
> 
> 

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