Timestamping

yo dawg i heard you like timestamps so i timestamped your timestamps.

use ethtool to see what timestamping methods are available on Linux:

[schwarzgerat](0) $ ethtool -T ixgbe1
Time stamping parameters for ixgbe1:
Capabilities:
        hardware-transmit
        software-transmit
        hardware-receive
        software-receive
        software-system-clock
        hardware-raw-clock
PTP Hardware Clock: 1
Hardware Transmit Timestamp Modes:
        off
        on
Hardware Receive Filter Modes:
        none
        all
[schwarzgerat](0) $