Re: [Linuxptp-users] issue with NetXtreme II BCM57810

2016-10-04 Thread Luke Bigum
- Original Message - > From: "Richard Cochran" > To: "Luke Bigum" > Cc: "linuxptp-users" > Sent: Tuesday, 4 October, 2016 14:28:39 > Subject: Re: [Linuxptp-users] issue with NetXtreme II BCM57810 > I don't have this card nor was I involved in reviewing the driver. > The file, drivers/ne

Re: [Linuxptp-users] issue with NetXtreme II BCM57810

2016-10-04 Thread Richard Cochran
On Tue, Oct 04, 2016 at 10:49:46AM +, Luke Bigum wrote: > If I do some simple tests with linux/Documentation/ptp/testptp.c, it > appears the PHC is spinning at about half the Hz it should be doing > (it takes roughly 2 real seconds for the PHC to advance 1 > second). While it is an anecdotal ob

[Linuxptp-users] issue with NetXtreme II BCM57810

2016-10-04 Thread Luke Bigum
Hello, I have a hardware timestamping issue with a Broadcom NIC that I'd like a few opinions on. I'm 95% sure it's a NIC / driver problem, but I need some expert opinions before I go down the vendor / manufacturer route. Both ptp4l and a build of ptpd using the PHC subsystem exhibit similar pro