2015-09-15 17:10, Wu, Yiwen: > Hi all, > > I am new to dpdk. I am running a single forwarding program based on dpdk > 2.1.0. The program runs on a VM, binding on two interfaces. All it's > doing is to forward packets from one interface to another. All > ingressing packets are fine but there seems no egressing packets. I used > rte_eth_add_tx_callback to register a tx callback. The callback is able > to print the right egress packet but the destination is just not > receiving it (via tcpdump). Does anybody have the similar experience? > Any solution or hints will be great.
You need to call rte_eth_tx_burst() instead of rte_eth_add_tx_callback(). For more information, please check the guide: http://dpdk.org/doc/guides/prog_guide/poll_mode_drv.html#poll-mode-driver You can also check this basic example: http://dpdk.org/browse/dpdk/tree/examples/skeleton/basicfwd.c