RE: [PATCH net-next] r8169: add quirk for RTL8116af SerDes

From: Hau
Date: Mon Jul 14 2025 - 11:38:02 EST


>
> Can you give us a few more details. What is on the other end of the SERDES?
> An SGMII PHY? An SFP cage? An Ethernet switch chip?
>
> A quick search suggests it is used with an SFP cage. How is the I2C bus
> connected? What about GPIOs? Does the RTL8116af itself have GPIOs and an
> I2C bus?
>
RTL8116af 's SERDES will connect to a SFP cage. It has GPIO and a I2C bus. But driver did not use it to access SFP cage.
Driver depends on mac io 0x6c (LinkStatus) to check link status.