1000Base-T1

[ArnaudL]

Dear All,

For an application, I am looking for Ethernet ports comply with 1000Base-T1 standard (automotive Ethernet).

This board will be used under Linux Ubuntu 18.04 and 22.04.

It seems, there are no PCIe cards directly offering 1000Base-T1 ports.  We have to go through a card with SFP ports and use 1000Base-T1 Ethernet SFP module.

For information:

Currently, wer tried with Intel XL710 (driver Linux i40e) with SFP module Technica TE-1440 (recent version with marvell chipset 88Q2112)

However, we encounter the following problem:

• Linux has the driver for the SFP T1 phy cartridge (marvell-88q2xxx)
• The XL710 Ethernet card does not provide access to the I2C link:

It is the internal FPGA that takes control of the I2C com (from what we understand)

We do not know of any Ethernet card/chipset reference that allows direct I2C access and that allows Linux to load its own driver.

Do you have suggestion of PCIe card complies with 1000Base-T1 ?

Best REgards

Arnaud

[Devi_Intel]

Hi ArnaudL,

Greetings~

Thank you for your recent post on our community forum. We are currently further investigating the matter you raised and shall escalating this issue to next level team.

Thank you for your patience and understanding.

Best regards,

Devi

[Devi_Intel]

Hi ArnaudL,

Greetings~

We have noticed that there is a duplicate case regarding your issue, with one case opened through our web portal support. For further communication and provide you with the best possible support, we advise to continuing the conversation through the web portal case.

We will proceed to close this community case accordingly. Thank you for your understanding and cooperation.

Best regards,

Devi