On Thu, Mar 01, 2018 at 01:21:35AM +0000, Michael Brown wrote: > The following series of patches adds support required for > sub-nanosecond timestamps in ptp4l. The kernel-to-userspace API data > structures for reporting such timestamps are not yet defined, but this > code is verified to achieve sub-nanosecond synchronisation over IPv6 > (6LoWPAN) using a DecaWave DW1000 UWB radio transceiver with one > temporary hack (not included in this series) to allow the kernel > driver to report timestamps with ~16ps granularity.
At first glance this series looks good. I expect to merge the first half or so, because we really do want the tmv_t operations to be used consistently. Regarding changing the implementation, I think we'll want to hold off on that until kernel support for high resolution time stamps becomes available. Merging this bit right away makes the computations slower and benefits very few users! > I have tried to structure the patches to maximise ease of code review. Yes, well done. I appreciate that. Thanks, Richard PS We'll see whether my reply makes it to the list or not... ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Linuxptp-devel mailing list Linuxptp-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linuxptp-devel
