On Tue, Jun 02, 2020 at 10:46:00AM +0000, gabriel.moy...@dlr.de wrote: > Hi everybody, > > Currently I am writing a piece of code to test HW timestamping on e1000 > during reception, which runs on FreeBSD 12, but unfortunately it seems that > it isn't working. > > The socket is created and configured as follows: > > sockfd = socket(AF_INET, SOCK_DGRAM, 0); > int on = 1; > setsockopt(sockfd, SOL_SOCKET, SO_TIMESTAMP, &on, sizeof(on)); > > After recvmsg() is called, cmsg_type of received control messages are printed > out with help of the control message routines > (https://www.freebsd.org/cgi/man.cgi?query=CMSG_DATA). SCM_TIME_INFO should > be printed out but it's not. > > Is there any configuration missing? Does e1000 support HW timestamping right? > > I will appreciate any help.
Hardware timestamping is only implemented for Mellanox ConnectX-4 and hier, and Chelsio Terminators (T4 and newer ?). It might be doable for Intel some cards, but not all of them. _______________________________________________ freebsd-net@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org"
