aRFS support for stmmac , any existing work or interest?

Hi,

Is there any existing work or interest in adding accelerated RFS to
the stmmac driver?

Today stmmac only reaches the Flexible Receive Parser (FRP) through
tc-flower/tc-u32, and that path is accept/drop only.

The hardware seems to supports it, as I've confirmed on a dwmac-4.20a
part (frpsel=1) that setting the FRP entry's dma_ch_no steers a
matched flow to the chosen channel; the driver just leaves it at 0.

- Is anyone already working on this, or has it been attempted before?
(I couldn't find prior postings , apologies if I missed a thread.)
- Would this be of interest / have a realistic path to merging upstream?

Happy to do the work and send an RFC if there's interest.

Thanks,
Pedro

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