Hi Damjan, I have used below CLI's to create rdma interfaces over Mellanox , Can you suggest what set of CLi's I should use so that packets from rdma will also have mbuff fields set properly , so that we can directly right on KNI?
create interface rdma host-if ens2f0 name device_9/0/0 create interface rdma host-if ens2f1 name device_9/0/1 Thanks, Chetan Bhasin On Fri, Dec 6, 2019 at 9:32 PM Damjan Marion via Lists.Fd.Io <dmarion= me....@lists.fd.io> wrote: > > > > On 6 Dec 2019, at 07:16, Prashant Upadhyaya <praupadhy...@gmail.com> > wrote: > > > > Hi, > > > > I use VPP with DPDK driver for I/O with NIC. > > For high speed switching of packets to and from kernel, I use DPDK KNI > > (kernel module and user space API's provided by DPDK) > > This works well because the vlib buffer is backed by the DPDK mbuf > > (KNI uses DPDK mbuf's) > > > > Now, if I choose to use a native driver of VPP for I/O with NIC, is > > there a native equivalent in VPP to replace KNI as well ? The native > > equivalent should not lose out on performance as compared to KNI so I > > believe the tap interface can be ruled out here. > > > > If I keep using DPDK KNI and VPP native non-dpdk driver, then I fear I > > would have to do a data copy between the vlib buffer and an mbuf in > > addition to doing all the DPDK pool maintenance etc. The copies would > > be destructive for performance surely. > > > > So I believe, the question is -- in presence of native drivers in VPP, > > what is the high speed equivalent of DPDK KNI. > > You can use dpdk and native drivers on the same time. > How KNI performance compares to tap with vhost-net backend? > > > -- > Damjan > > -=-=-=-=-=-=-=-=-=-=-=- > Links: You receive all messages sent to this group. > > View/Reply Online (#14826): https://lists.fd.io/g/vpp-dev/message/14826 > Mute This Topic: https://lists.fd.io/mt/67470059/856484 > Group Owner: vpp-dev+ow...@lists.fd.io > Unsubscribe: https://lists.fd.io/g/vpp-dev/unsub [ > chetan.bhasin...@gmail.com] > -=-=-=-=-=-=-=-=-=-=-=- >
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