RE: [PATCH 1/2] stmmac: introduce flag to dynamically disable TX offload for rockchip devices

[Jose Abreu]

From: Leonidas P. Papadakos <papadakospan@xxxxxxxxx>
Date: Tue, Apr 02, 2019 at 23:48:16

> I can confirm that snps,no-pbl-x8, currently set by uboot for the fdt
> basically fixes the tx-checksumming issue.
> I get 700~800 Mbps myself but that might come down to the setup.
> You could say it affects performance slightly, as I saw in a previous 
> email.
> 
> Without the setting The rate consistently drops to 0.
> ethtool reports tx-checksumming is on in both cases
> 
> Pretty cool!
> Does that give you guys an idea on how to tackle it "officially"?
> 
> 
> 

Thank you all for testing !

It's been on my todo list to cook up a patch that limits PBL according to
FIFO size but I didn't manage to have the time yet so for now it would
be better if you fix it by submitting the DT bindings changes.

Thanks,
Jose Miguel Abreu