Στις Κυρ, 21 Απρ, 2019 at 7:00 ΜΜ, ο/η Peter Geis <pgwipeout@gmail.com> έγραψε:

Thanks for sharing that thread, it's nice to finally have an answer to why we have these issues. I've tested this on *my* Firefly rk3328-roc-cc, and while this patch succeeds in preventing the tx lockup, iperf3 drops to a delightful 15mbps. It would seem we have significant differences between manufacturing runs of the various boards. The auto adjustment feature that was discussed in that thread is probably the only thing that will solve this for all boards. Until then I don't think we are going to get a solution that works for all.

Indeed that feature would be optimal. Just to confirm, you have replaced force_thresh_dma_mode with this txpbl thing, right?

That is the only ethernet modification I have in the dts, done though u-boot. That is on linux 5.1

fdt rm /ethernet@ff540000 snps,force_thresh_dma_mode

fdt set /ethernet@ff540000 snps,txpbl <0x4>