How to confirm if r8168 suspend/resume callbacks are triggered on Jetson Orin NX (Kernel 5.10)?

Robotics & Edge Computing Jetson Systems Jetson Orin NX
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Hi,

I am working with a Jetson Orin NX 16GB running Linux kernel 5.10 (LINUX_VERSION_CODE = 331668) and using the r8168 driver (Realtek PCIe Gigabit Ethernet).

I am trying to enable Wake-on-LAN (WOL) support, but I am not sure whether the driver’s suspend/resume callbacks are actually being called during system suspend.

From the driver structure, on this kernel version it should be using the rtl8168_pm_ops struct for power management. My concern is whether these callbacks (suspend, resume, freeze, etc.) are really executed when the system enters suspend on Jetson.

I would like to clarify:

  1. How to confirm that the rtl8168_pm_ops suspend/resume functions are triggered on Jetson Orin NX?

  2. Is there any Jetson-specific limitation where PCIe device power management callbacks might not run during suspend?

  3. Could this explain why Wake-on-LAN does not work on Jetson even though it is supported in the r8168 driver?

Any guidance or confirmation from others who have tested WOL with the r8168 driver on Jetson would be very helpful.

Thanks!

5

The WoL is not a feature that supported on Orin NX and Orin Nano.

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