From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Wu, Yiwen" Subject: Re: No egressing packet Date: Wed, 16 Sep 2015 09:30:34 -0400 Message-ID: <55F96EFA.8050006@gmail.com> References: <55F88932.7020800@gmail.com> <1944265.eVANXui8GP@xps13> Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit Cc: dev@dpdk.org To: Thomas Monjalon Return-path: Received: from mail-qg0-f51.google.com (mail-qg0-f51.google.com [209.85.192.51]) by dpdk.org (Postfix) with ESMTP id 818E8376C for ; Wed, 16 Sep 2015 15:30:36 +0200 (CEST) Received: by qgx61 with SMTP id 61so171047554qgx.3 for ; Wed, 16 Sep 2015 06:30:36 -0700 (PDT) In-Reply-To: <1944265.eVANXui8GP@xps13> List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" Thomas, I am using rte_eth_tx_burst to send packets. I also use rte_eth_add_tx_callback to register a callback to figure out what has been sent. Thanks, Yiwen On 9/16/2015 3:32 AM, Thomas Monjalon wrote: > 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