[dpdk-users] Can not forward the message in DPDK

[LOAN TON]

Hi Manoj M,

Have you solved your problem? I still stick on my case.

Loan Ton
> On 26 May 2017, at 11:49 AM, Manoj Mallawaarachchi <manoj_ws at yahoo.com> wrote:
> 
> Hi Loan,
> 
> Thanks for the message to group and sharing the information. I also doing small scale project similar  to this using DPDK forwarder app and as below scenario.
> 
> Client PC ----> DPDK forwarder ----> Internet
> 
> All connect via home router. I face same issue with client forwarding to DPDK app and to INTERNET and back. Still my objective not work, however I found below discussion will help to your scenario also.
> 
> http://dpdk.org/ml/archives/dev/2013-June/000237.html
> 
> May be you need to integrate user space TCP/IP stack like ANS.
> 
> https://github.com/ansyun/dpdk-ans
> 
> I'm also exploring possibilities to my requirement discussed below:
> 
> http://www.dpdk.org/ml/archives/users/2017-May/001922.html
> 
> Hope my comments useful to get some idea.
> 
> Thank you,
> Manoj M
> --------------------------------------------
> On Wed, 5/24/17, LOAN TON <tont at usi.ch> wrote:
> 
> Subject: [dpdk-users] Can not forward the message in DPDK
> To: users at dpdk.org
> Date: Wednesday, May 24, 2017, 7:50 PM
> 
> Hi all,
> 
> I am a newbie with DPDK. I am doing a
> small project as following.
> 
> I have three components such as client
> (one or many), one transporter and one server. The
> transporter and server are in DPDK. I use switch to
> connect  three components together and add rule to
> forward the message between them. The message passing from
> client and transfer to transporter and then to server. The
> server receives the message , opens it and reads some
> information and responds to client and repeats again. One
> client sends a message to transporter and server. At the
> transporter, it only increases the id of message and then
> pass the message to the server. Only when receiving message
> from server, client just sends another one message. Besides,
> after one second, the client have not received the message
> from the server. It will send a new message to the
> transporter and server. The life cycle runs forever until i
> terminate the application.
> 
> Model:    Client ->
> Transporter (DPDK) -> Server (DPDK)  
> 
> My problem here is the client (for
> example 30 clients) sends a message to transporter. The
> transporter forwards message to server. But the server does
> not receive any message from the transporter.
> I checked some information in my
> transporter, the server and also the switch device (port 30
> is belong to the transporter, port 28 is belong to the
> server). I discovered that when the switch showed err = 2,
> over =2 in the port 30 of the transporter, the server have
> not received any message from the transporter (just my
> thinking, not sure). (You can see some below photos) 
> Or I guessed that I did something wrong in the
> transporter’s code.
> Besides, I also run some experiments
> with different the amount of clients in 15 seconds,
> sometimes the system works, sometimes not. 
> 
> Have anyone met such case? Please help
> me to figure out where the error come from. I would be
> grateful for any help
> 
> I attach some photos of transporter,
> server, switch info and  the transporter's code because
> maybe I was doing wrong about txbuffer or rte_mbuf.
> 
> Best Regards,
> Loan Ton
> 
> Here are photo links
> Transporter with 30 clients: http://imgur.com/a/dQ5ss <http://imgur.com/a/dQ5ss> 
> Server with 30 clients: http://imgur.com/a/WkhBR <http://imgur.com/a/WkhBR> 
> Switch with 30 clients: http://imgur.com/a/MEPPA <http://imgur.com/a/MEPPA> 
> 
> I tested the case with 15 clients, one
> transporter, one server. 
> Transporter with 15 clients: http://imgur.com/a/VXHZb <http://imgur.com/a/VXHZb> 
> Server with 15 clients: http://imgur.com/a/ed4Pj <http://imgur.com/a/ed4Pj> 
> 
> Transporter’s code: http://codepad.org/I4eDSll3 <http://codepad.org/I4eDSll3>