Re: [PATCH net-next RFC 0/9] net: dsa: PTP timestamping for mv88e6xxx

Richard Cochran
2017-11-06T14:55:46Z

On Sun, Oct 08, 2017 at 11:38:21AM -0400, Richard Cochran wrote:
> I will try to get my hands on some HW, perhaps by the end of October,
> in order to test and complete your driver...

I now have a 88E6352 to test your series on. Unfortunately, it
doesn't really work. Here is what I did.

1. Gave one of the external switch ports an address (ifconfig ext0
192.168.1.111)

2. Ran ptp4l with option 'free_running 1'.

When I run with Layer2 transport and the switch as master, it seems to
work. Any other combination of role + transport fails.

| Switch Role | Tranport | Result |
|-------------+----------+------------------------------------------------|
| master | UDPv4 | no Delay_Resp appear at slave |
| master | UDPv6 | no Delay_Resp appear at slave |
| master | layer2 | seems okay |
| slave | layer2 | Announce messages not getting through to host? |

Have you tested any of this?

Do I need some special switch configuration first?

Thanks,
Richard