On Mon, Jul 12, 2021 at 03:02:50PM +0000, Keller, Jacob E wrote: > Right. Though.. running something like ptp4l on the same connection > could be problematic if the applications aren't working together > because most hardware supports a single request at once,
I wouldn't say "most". Surely some HW is like that, but I never counted. I always hoped that HW designers would get a clue a simply provide a time stamp for each and every frame, Tx and Rx, in the buffer descriptors. No filters, no parsers, just a big on/off switch. It would be way easier to implement in HW, and it would solve all of these sorts of problems. > so if both > applications send a request at the same time one of them will > fail. They would need to either ensure they're off-sync or be > communicating to each other about when its ok to timestamp request > somehow. Oh, that will make the users of the new PHC vclock thing happy! I can already hear the complaints and bug reports here on our lists... Thanks, Richard _______________________________________________ Linuxptp-devel mailing list Linuxptp-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linuxptp-devel
