linux-kernel - Re: [Intel-wired-lan] [PATCH net-next v2] ixgbe: Add 10G-BX support

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Message-ID: <77cfe8ef-57d4-4dee-b89d-3f5504653413@molgen.mpg.de>
Date: Tue, 14 Oct 2025 15:07:52 +0200
From: Paul Menzel <pmenzel@...gen.mpg.de>
To: Andrew Lunn <andrew@...n.ch>, Birger Koblitz <mail@...ger-koblitz.de>
Cc: Tony Nguyen <anthony.l.nguyen@...el.com>,
 Przemek Kitszel <przemyslaw.kitszel@...el.com>,
 Andrew Lunn <andrew+netdev@...n.ch>, "David S. Miller"
 <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>,
 Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
 intel-wired-lan@...ts.osuosl.org, netdev@...r.kernel.org,
 linux-kernel@...r.kernel.org
Subject: Re: [Intel-wired-lan] [PATCH net-next v2] ixgbe: Add 10G-BX support

Dear Birger, dear Andrew,


Am 14.10.25 um 14:27 schrieb Andrew Lunn:
> On Tue, Oct 14, 2025 at 06:18:27AM +0200, Birger Koblitz wrote:
> 61;8003;1c> Adds support for 10G-BX modules, i.e. 10GBit Ethernet over a single strand
>> Single-Mode fiber
>> The initialization of a 10G-BX SFP+ is the same as for a 10G SX/LX module,
>> and is identified according to SFF-8472 table 5-3, footnote 3 by the
>> 10G Ethernet Compliance Codes field being empty, the Nominal Bit
>> Rate being compatible with 12.5GBit, and the module being a fiber module
>> with a Single Mode fiber link length.
>>
>> This was tested using a Lightron WSPXG-HS3LC-IEA 1270/1330nm 10km
>> transceiver:
>> $ sudo ethtool -m enp1s0f1
>>     Identifier                          : 0x03 (SFP)
>>     Extended identifier                 : 0x04 (GBIC/SFP defined by 2-wire interface ID)
>>     Connector                           : 0x07 (LC)
>>     Transceiver codes                   : 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
>>     Encoding                            : 0x01 (8B/10B)
>>     BR Nominal                          : 10300MBd
>>     Rate identifier                     : 0x00 (unspecified)
>>     Length (SMF)                        : 10km
>>     Length (OM2)                        : 0m
>>     Length (OM1)                        : 0m
>>     Length (Copper or Active cable)     : 0m
>>     Length (OM3)                        : 0m
>>     Laser wavelength                    : 1330nm
>>     Vendor name                         : Lightron Inc.
>>     Vendor OUI                          : 00:13:c5
>>     Vendor PN                           : WSPXG-HS3LC-IEA
>>     Vendor rev                          : 0000
>>     Option values                       : 0x00 0x1a
>>     Option                              : TX_DISABLE implemented
>>     BR margin max                       : 0%
>>     BR margin min                       : 0%
>>     Vendor SN                           : S142228617
>>     Date code                           : 140611
>>     Optical diagnostics support         : Yes
>>
>> Signed-off-by: Birger Koblitz <mail@...ger-koblitz.de>
> 
> Reviewed-by: Andrew Lunn <andrew@...n.ch>

Unfortunately I do not see the original patch on the mailing list 
*intel-wired-lan*, and lore.kernel.org also does not have it [1].


Kind regards,

Paul


[1]: 
https://lore.kernel.org/intel-wired-lan/0c753725-fd6f-4f85-9371-f7342f86acff@lunn.ch/T/#u