[dpdk-users] how to Read(Write) from(to) via lcores in dpdk regardless of NIC

[Hamed Zaghaghi]

Hi,

If I understood well you need to do these tasks:
1. Packet crafting (I think that DPDK has no functions for this task)
2. Store packets (DPDK has (rte_mbuf)[
http://dpdk.org/doc/api/rte__mbuf_8h.html])
3. Share between lcores (DPDK offers rte_ring)



On Tue, Mar 8, 2016 at 8:45 AM Mahdi Moradmand Badie <mahdi.mbadie at gmail.com>
wrote:

> Dear Hamed,
>
> First of all thank you so much for your kindly reply,
>
> It's the primary part of the big project, in order to be more familiar
> with DPDK,
> I have to implement the mentioned framework by use of DPDK,
> And finally we wanna implement the cache locking approach (via help of
> features like Cache Allocation Technology(CAT), Cache Monitoring Technology
> (CMT)) in Xeon processor (my supervisor told me this simple exercise
> will be helpful to do the final part) in such a way we could dedicate a
> specific part of shared memory (L3) to each core which the other don't
> access to it.
> Obviously using of DPDK with Xeon which both are from "Intel", is
> considered as strength point.
>
> I hope this was more clear :)
>
> On 7 March 2016 at 23:56, Hamed Zaghaghi <hamed.zaghaghi at gmail.com> wrote:
>
>> Hi Mahdi,
>>
>> Why do you want to use DPDK when you don't use NIC? You can do what you
>> want outside of DPDK.
>>
>> Regards,
>> Hamed Zaghaghi
>>
>> On Tue, Mar 8, 2016 at 12:16 AM Mahdi Moradmand Badie <
>> mahdi.mbadie at gmail.com> wrote:
>>
>>> Dear All,
>>> I am Mahdi and I am new in DPDK,
>>> I wanna generate for example 3 different packets in core0 as master write
>>> it to share memory (L3), then core1 as slave read this packets, change
>>> them
>>> with for example function1 and write again in share memory (L3) and
>>> finally
>>> check the result with whatever I expect.
>>> The most important thing is that I don't wanna use NIC and I don't know
>>> for
>>> working with cores how I can write/read to/from them, I mean with which
>>> template and sequence???
>>> Thanks in advance,
>>>
>>
>
>
> --
> M at hdi Mor at dm@nd B at die
>