Daiwei Li <[email protected]> writes: > 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%[email protected]/ where the > bug was confirmed by an Intel employee. Any chance we could add back the ack > for 82580 specifically? Thanks!
Of course, I'll prepare a patch for that. Thanks for digging that one up. Cheers, -- Vinicius
