On Tue, Aug 13, 2024 at 09:55:53PM -0700, Daiwei Li wrote: > 82580 NICs have a hardware bug that makes it > necessary to write into the TSICR (TimeSync Interrupt Cause) register > to clear it: > https://lore.kernel.org/all/cdcb8be0.1ec2c%25matthew.v...@intel.com/ > > Add a conditional so only for 82580 we write into the TSICR register, > so we don't risk losing events for other models. > > Without this change, when running ptp4l with an Intel 82580 card, > I get the following output: > > > 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 > > This goes away with this change. > > This (partially) reverts commit ee14cc9ea19b ("igb: Fix missing time sync > events"). > > Fixes: ee14cc9ea19b ("igb: Fix missing time sync events") > Closes: > https://lore.kernel.org/intel-wired-lan/CAN0jFd1kO0MMtOh8N2Ztxn6f7vvDKp2h507sMryobkBKe=xk=w...@mail.gmail.com/ > Tested-by: Daiwei Li <daiwe...@google.com> > Suggested-by: Vinicius Costa Gomes <vinicius.go...@intel.com> > Signed-off-by: Daiwei Li <daiwe...@google.com>
Reviewed-by: Simon Horman <ho...@kernel.org>
