Can you please refer Chapter 15.1.2 of the programmer's manual http://www.intel.com/content/dam/www/public/us/en/documents/guides/intel-dpdk-programmers-guide.pdf titled "Rings-based PMD". It indicates that " To run an Intel(r) DPDK application on a machine without any Ethernet devices, a pair of ring-based rte_ethdevs can be used as below" As Vivek indicated, the ring based PMD (libte_pmd_ring) allows a set of s/w FIFOs (that is rte_ring) to be accessed using the PMD APIs, as though they were physical NICs"
-----Original Message----- From: dev [mailto:dev-boun...@dpdk.org] On Behalf Of Ymo Lists Sent: Friday, February 14, 2014 9:20 AM Cc: dev at dpdk.org Subject: Re: [dpdk-dev] Is it possible to have dpdk running with no dependency on a nic ? Could you please point me to a sample doing this ? All the sample i have seen are initializing the eal and that involves initializing the nics. Is there a sample ? Can you mock up some code ? plz plzzz :-) On Fri, Feb 14, 2014 at 3:42 AM, Vivek Soni <tellviveks at gmail.com> wrote: > Yes, It is very well possible to run DPDK without dependency on the NIC. > But it all depends what you want to do. > The two DPDK applications can communicate using the ring library > provided by DPDK. In case there is no NIC, DPDK provides pure software > based PMDs which can be used on systems without a NIC or with > unsupported NIC using standard kernel drivers. > > Hope it helps. > > Regards, > Vivek > > > On Fri, Feb 14, 2014 at 1:49 AM, Ymo Lists <ymolists at gmail.com> wrote: > > > Is this a faq ??? > > > > > > On Wed, Feb 12, 2014 at 1:21 PM, Ymo Lists <ymolists at gmail.com> wrote: > > > > > 1) I have two apps that need to communicate on the same machine . > > > Is it possible to have these two apps communicating via dpdk > > > without > > referencing > > > a nic ? > > > > > > 2) The apps need to run on an amazon vm. How can you run dpdk on > > > an > > amazon > > > vm with only one nic if the above is not possible ? > > > > > >
