On Wed, Dec 10, 2014 at 12:03:41PM +0100, Sachin Sharma wrote: > Dear all, > > In my algorithm, I am interested to perform two activities - (1) > transmitting packets to a tx_queue and (2) transmitting packets from > tx_queue to a wire - separately. I have gone through the code by putting > logs in the dpdk code and found that there is a function rte_eth_tx_burst > which transmits packets to a specific queue. However, when I debugged more > then I found that this function just calls eth_igb_xmit_pkts > from librte_pmd_e1000, and this function just directly write the packets to > the wire by writing all packets into registers. Could you please suggest > how to implement these two functions if these are not implemented already > in dpdk? > > > > Thanks & Regards, > Sachin.
Hi Sachin, anything written to the NIC TX queue is automatically put onto the wire unless the NIC port is down or the wire is unplugged etc. What is your use-case that you need to do this? I would suggest doing internal buffering in your application, as many DPDK example applications do, and then call tx_burst to put your packets on the wire when you want this capability. Regards, /Bruce
