On Fri, Mar 11, 2016 at 3:47 PM, Mahdi Moradmand Badie <mahdi.mbadie at gmail.com> wrote: > My big challenge is having a tested code (run able with right > functionality), then run and change it in order to have my task. > I wanna use the share memory btw cores in order to write/read to/from and > knowing how do that :), all available code which I found are based on NIC :( > or maybe I am wrong!!! > Thanks in advance,
Take a look at this example: http://dpdk.org/doc/guides/sample_app_ug/multi_process.html#basic-multi-process-example IIRC, it uses rings to send messages back and forth between the cores. The code is available with the dpdk source, so it should serve as a good starting point to see how to set up the shared memory and use it. Does that help? > > On 11 March 2016 at 15:43, Kyle Larose <eomereadig at gmail.com> wrote: >> >> 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 > > > > > -- > M at hdi Mor at dm@nd B at die
