On Tue, Aug 13, 2024 at 07:47:26PM +0800, Furong Xu wrote:

Move the Frame Preemption(FPE) over to the new standard API which uses
ethtool-mm/tc-mqprio/tc-taprio.

Changes in v2:
  1. refactor FPE verification processe
  2. suspend/resume and kselftest-ethtool_mm, all test cases passed
  3. handle TC:TXQ remapping for DWMAC CORE4+

This is starting to look better and better. I wouldn't be sad if it was
merged like this, but the locking still looks a little bit wacky to me,
and it's not 100% clear what priv->mm_lock protects and what it doesn't.

I can make a breakdown of how each member of fpe_cfg is used, and thus
understand exactly what are the locking needs and how they are addressed
in this version, but most likely not today.