Thank you for your info that are giving me the right heads up To experiment with VDUSE and share a virtual network interface (I don't have a physical NIC) between the Linux kernel and DPDK using VDUSE, I'm about to follow these steps:
Load Required Kernel Modules: modprobe vduse Create /dev/vdpa0 device with: vdpa -d /dev/vdpa0 -n my_vdpa_driver -q queue_count I wonder which vdpa_driver should I use, I don't have a real NIC After having this vdpa0 interface up I can run my DPDK application: ./my_dpdk_app --vdev "net_vdpa0,iface=/dev/vdpa0" Regards, Antonio. On Wed, Oct 4, 2023 at 9:08 AM Maxime Coquelin <maxime.coque...@redhat.com> wrote: > > > > On 10/4/23 08:17, David Marchand wrote: > > On Tue, Oct 3, 2023 at 6:01 PM Stephen Hemminger > > <step...@networkplumber.org> wrote: > >> > >> On Tue, 3 Oct 2023 10:49:16 +0200 > >> Antonio Di Bacco <a.dibacco...@gmail.com> wrote: > >> > >>> I understand, could we use another solution ? Like a memif interface > >>> in DPDK and libmemif in Linux? > >> > >> The issue is accessing kernel networking devices. Both virtio user > >> and XDP are faster for that. Memif is for doing process to process > >> networking. > > > > For dpdk <-> kernel, as you are mentioning virtio-user/vhost, let me > > add that there is some activity on this side, with VDUSE. > > > > Maxime is working on the VDUSE kernel and dpdk bits. > > He gave a talk about the current status during the summit and some > > performance numbers: > > https://dpdksummit2023.sched.com/event/1P9xA/vduse-performance-how-fast-is-it-maxime-coquelin-red-hat > > > > > > Thanks for sharing David. > I'd like just to add some more information on VDUSE if you want to > experiment with VDUSE, which is still under development: > https://gitlab.com/mcoquelin/vduse-doc > > Maxime >
