> Oops, I had "slaveOnly" set in my PC's configuration. So layer2 seems > to work as expected. > > Have you tested UDPv4? It doesn't work.
I have not. Our usage has been focused on 802.1AS; the ptp4l settings we use are the following: transportSpecific 0x1 ptp_dst_mac 01:80:C2:00:00:0E p2p_dst_mac 01:80:C2:00:00:0E network_transport L2 delay_mechanism P2P time_stamping hardware One thing that we're not doing (and probably should be) is configuring multicast frames to 01:1B:19:00:00:00 to be destined to the CPU port. (01:80:C2:00:00:0E is used for management, so the *_mgmt_rsvd2cpu() functions give us that "for free".) That might be necessary to make 1588 L2 work properly. I don't know if that would affect 1588 L4, or if there's anything else missing to make L4 timestamping work from the HW perspective. -- brandon
