On May 26, 2010, at 9:03 AM, Mcmillan, Scott A wrote: > Both the 'raw' and 'nic' timestamps are in the form of seconds since the Unix > epoch, plus fractions of a second. Please see my response to Darren for more > info on the difference between these two timestamp sources.
Which reply was that? I saw a reply with > Darren, > > Various flavors of timestamping are available on Intel NICs. For example, > the 82576 can timestamp PTP packets in hw, but not general purpose packets. > My guess is that the 82575 behaves like the 82576 with respect to hw > timestamping, but I'm not sure. Please refer to the product docs. > > In the Linux driver, the PTP hw timestamping and general purpose packet > timestamping paths have much in common. (see IGB_PER_PKT_TIMESTAMP in the > Linux igb stable driver, http://sourceforge.net/projects/e1000/files/). > > Scott Does that mean that the additional information is in the product documentation and/or the Linux driver code?- This is the tcpdump-workers list. Visit https://cod.sandelman.ca/ to unsubscribe.
