Yes, I found it before :), its a little ambiguous for me, I don't know how I could write the specific data(message or packet) into specific core, then change it and then read with the other core.
On 11 March 2016 at 15:54, Kyle Larose <eomereadig at gmail.com> wrote: > 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 > -- M at hdi Mor at dm@nd B at die
