Hello all,<div>I want to measure the transmit latency in the host for a dpdk packet, so I need the timestamp before send (t1) and the hardware timestamp after the NIC finish sending the packet (t2). But I have some questions:</div><div>(1) How can I synchronizes the system clock to the hardware clock in the NIC binded to dpdk driver (like phc2sys in normal NIC driver)?</div><div>(2) How can I get the hardware timestamp t2?</div><div>Thank you for your time and consideration.</div><div style="text-align: right;">Sincerely, Zhang Xizhi</div><div><span class="spnEditorSign"><div><br></div><div><br></div><div><span style="color: rgb( 132 , 132 , 132 ) ; font-family: , &quot;tahoma&quot; , &quot;verdana&quot; , sans-serif ; font-size: 12px"><br></span></div></span></div>