On Mon, 7 Apr 2025 22:30:54 +0200 Andrew Lunn wrote: > As the name get/set-phy-tunable suggests, these are for PHY > properties, like downshift, fast link down, energy detected power > down. > > What PHY are you using here?
Thanks for review. It's PHY E810-C in this case. According to spreadsheet: E810_Datasheet_Rev2.4.pdf (Chapter 17.3.3 E810 SDP[0:7] (GPIO) Connection), it's SDP0 and SDP2 GPIOs are being connected to QSFP Reset and Presence pins correspondingly. I assume you may suggest this use case is not directly PHY related. In first approach I tried to use reset operation which has following flag in enum ethtool_reset_flags: ETH_RESET_PHY = 1 << 6, /* Transceiver/PHY */ but this doesn't allow for reset asserting and later deasserting so I took 'get/set-phy-tunable'.
