[dpdk-users] Dealing with pcaps

Upendra Pathrikar uspathrikar at gmail.com
Fri May 6 13:14:47 CEST 2016

Hi Victor,

I think this page
Libpcap and Ring Based Poll Mode Drivers


can help you.

On Fri, May 6, 2016 at 3:11 AM, Victor Boudon <vctrhb at gmail.com> wrote:

> Hi,
> I'm trying to build an application based on dpdk, but I'm a little lost,
> and I
> feel like I'm not in the traditional use case:
> The idea is that i can have pcaps that a are "dropped" into my application.
> What I was thinking of doing:
> Build a new driver based on the one in net/pcap. It will read on a queue:
> "what pcap should I read", and send the packets through the rx_queue.
> - How does the threading model works ? For what I understand, the driver is
> a
>   "producer", that push the datas to worker thought the rx_queue.
> - Can I add add additional metadata for the packet into the rx_queue ?
> Stuff
>   like a pcapid, and the offset of the packet in the pcap.
> - Can I detect "are all packet processed" and aggregate statistics based on
> that
>   ?
> - In which case should I use one or multiple rx_queues ?
> - Should I implement the tx_queues parts, event if I'm not going to use
> this
>   driver for dumping ?
> Thanks,
> Victor


*Regards,Upendra Sunil PathrikarBharti School of Telecom Technology and
Management,Indian Institute of Technology, Delhi.*

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