Hi, It appears this change breaks PTP on the 82580 controller, as ptp4l reports:
> timed out while polling for tx timestamp increasing tx_timestamp_timeout or > increasing kworker priority may correct this issue, but a driver bug likely > causes it The 82580 controller has a hardware bug in which reading TSICR doesn't clear it. See this thread https://lore.kernel.org/all/cdcb8be0.1ec2c%25matthew.v...@intel.com/ where the bug was confirmed by an Intel employee. Any chance we could add back the ack for 82580 specifically? Thanks!
