[dpdk-users] Send and Receive packets to/from specific core

[Kyle Larose]

On Fri, Mar 11, 2016 at 3:22 PM, Mahdi Moradmand Badie
<mahdi.mbadie at gmail.com> wrote:
> Dear All,
>
> I wanna Send(write) a Packet(s) with specific data (for example x = 10)
> from core 0 to share memory and Receive (Read) it with another Core (for
> example Core 1), change it in Core 1 (for example X = X + 1) and write
> again in share memory.
> I really don't know How I could do it, I wanna do this without using NIC ot
> rte_eth at all, so simple and easy but I confused.
> Please help me.
>
> PS. I know there are many example do more complex than this small exercise
> but all did it via NIC.

What is your biggest challenge? Is it moving information between
cores, or getting information into your application?

Consider that most of the multiprocess examples in DPDK do two things:
1) Send/Receive packets to/from a NIC
2) Send packets between cores

You obviously want to do #2, and looking at those examples should make
how to do it fairly obvious. Is your challenge replacing #1 with
something other than a NIC? If so, you *could* consider using a pcap
PMD to just read packets from a file. In the past, I have used ring
PMDs in conjunction with a secondary process which generates packets
to inject arbitrarily formatted packets into my program.

>
> --
> M at hdi Mor at dm@nd B at die