> -----Original Message----- > From: dev [mailto:dev-boun...@openvswitch.org] On Behalf Of Mauricio Vásquez > Sent: Monday, May 18, 2015 9:31 AM > To: dev@openvswitch.org; ivano cerrato > Subject: [ovs-dev] netdev-dpdk: Doubt about rings in dpdkr port type > > I'm performing a series of VM2VM communication testing where a virtual > machine is a packet generator while the other one just receives all the > packets. > > When I tested dpdk-ovs[1] I used a port type called dpdkclient: this port > has 4 rings, (tx, rx, alloc_q and free_q), alloc_q and free_q are used > because, due to a issue with DPDK[2], it's not possible to call > rte_pktmbuf_alloc or rte_pktmbuf_free inside a guest. (dpdk-ovs provides > packets to the guest application through alloc_q and the guest application > request freeing packets through free_q). > > I'm trying to do the same tests using ovs with dpdk[3] but I realized that > dpdkr port type has just the rx and tx rings, so at this moment the sender > application does not have a way to get new mbufs. > > Basically my questions are: > * Is there another way to get mbufs in a guest application?
I don't know of another safe way to do this other than alloc/free queues. > * If not, are the alloc_q and free_q planned to be added in dpdkr port? No immediate plans for this. Depending on what the purpose of your testing is, you could use vhost to source in one VM and sink in another. > > Thanks in advance. > > [1] https://github.com/01org/dpdk-ovs > [2] > https://github.com/01org/dpdk- > ovs/blob/development/guest/ovs_client/ovs_client.c#L158-L175 > [3] https://github.com/openvswitch/ovs > _______________________________________________ > dev mailing list > dev@openvswitch.org > http://openvswitch.org/mailman/listinfo/dev _______________________________________________ dev mailing list dev@openvswitch.org http://openvswitch.org/mailman/listinfo/dev
