Thank you for shipping this driver in the build. I can confirm it appears to fix instability with the built in realtek driver: (RealTek 8168/8111 B/C/CP/D/DP/E/F/G PCIe Gigabit Ethernet).

Previously under high load the built-in driver would watchdog timeout resetting the interface:

 
Jul 10 22:31:25 gruff kernel: re0: watchdog timeout
Jul 10 22:31:25 gruff kernel: re0: link state changed to DOWN
Jul 10 22:31:29 gruff kernel: re0: link state changed to UP
 
Using the driver via the tunables and I don't see interface outages when load testing with iperf:

In the future might be useful to make this the default driver for RealTek.

I've included the driver into the build. Should be in next builds. Then I'll test it.

21.04 PR: https://github.com/truenas/ports/pull/999

It is supported by current realtek-re-kmod https://www.freshports.org/net/realtek-re-kmod/

pfSense now includes it (since 2.5.0): https://redmine.pfsense.org/issues/11079

I've manually installed it on TrueNAS CORE 12.0-U3, RTL8125 works at full speed, haven't noticed any issues, at least for home nas use case (works even in a bridge, with VMs attached to it).

The package is small, and only is used when explicitly enabled through tunables (`if_re_load`, `if_re_name`). So it would be nice if the package was included in TrueNAS.