Hi Techi, let me try to help you. Inline please :) *Regards*, Mrityunjay Kumar. Mobile: +91 - 9731528504
On Sat, Aug 15, 2020 at 12:16 AM <techi...@gmail.com> wrote: > [Edited Message Follows] > Hello all, Thank you for your inputs. > > Let me elaborate my use case. I currently have DPDK router pipeline where > DPDK-APP-A controls intel NICs through DPDK drivers. DPDK-APP-A is also > responsible for routing between multiple physical interfaces(NICs). > DPDK-APP-B is a packet inspection application which does not have(need) > control over NICs and hence receives packets from DPDK rte_ring(s). > Current working ----> After rx on NICs, DPDK-APP-A sends packets(after > processing for defrag, conntrack) to DPDK-APP-B through rte_ring and waits > for packets on rte_ring (DPDK-APP-B should send them back after > inspection). Once packets are received through rte_ring then DPDK-APP-A > sends them out through one of the chosen NICs (according to destination > address). This operation is inline i.e. if APP-B wants to drop some > packets, it can, so that packets won't traverse further through APP-A. > > APP-B does not listen/wait on any particular address since it needs to > inspect all the traffic. > Now I want to replace DPDK-APP-A with VPP(DPDK) and need a mechanism with > inline support to send packets to APP-B for inspection. VPP standalone is > working perfectly with my NAT, static routing etc requirements. > [MJ]: from [your dpdk-app as part of vpp]-> send IP offset to APP-B. [do xyz in app-B], when sending back tx on memif as IP packet towards VPP [No MAC address required]. vpp will take care about ARP and l2 header stuff. > > I have explored VPP-plugins a bit but APP-B won't fit as plugin (.so) for > some internal reasons. Hence I started looking into memif (shared memory > packet interfaces) > [MJ] : you can look on VPP process node, Hope this input is helpful if you are planning to add APP-B as part of VPP. :) > > Hope this clears my requirement. >
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