Hi all,
I'm using rte_eth_rx_burst() to successfully retrieve packets from a
DPDK-enabled port. I can process the packet and everything works fine. My only
issue is that I cannot find any mean to retrieve a timestamp for every single
packet. As a dirty-workaround I'm using gettimeofday() to timestamp incoming
packets but I would rather like to retrieve a more accurate and realistic
timestamp from the Ethernet PHY layer instead. For example if I receive 32
packets in a single burst I'm just assigning the packets timestamp with 1ns of
difference (using gettimeofday() for the initial time offset).
Is there a way to retrieve a realistic timestamp from the Ethernet PHY layer?
I found this patch searching on the web:
http://www.wand.net.nz/trac/libtrace/browser/Intel%20DPDK%20Patches/hardware_timestamp.patch
that is however related to an older DPDK version and works only for INTEL 82580
controllers... do you know if that simple patch linked above could be similarly
ported to Intel 82599 and 82571 controllers? Is there any better/easier way to
do that?
Thanks a lot,
Francesco Montorsi
