> > Hello, > > I try to use af_xdp of DPDK 19.11, but start failed with testpmd. Here is the > log prints, could you please give suggestion for this error ? Thanks in > advance! > > ------ > [root@gc bin]$ ./testpmd -l 1,2,3 -n 4 --log-level=pmd.net.af_xdp:info --no- > pci --vdev net_af_xdp,iface=ens12,start_queue=0,queue_count=3 -- -i -- > rxq=3 --txq=3 > EAL: Detected 16 lcore(s) > EAL: Detected 1 NUMA nodes > EAL: Multi-process socket /var/run/dpdk/rte/mp_socket > EAL: Selected IOVA mode 'PA' > EAL: No available hugepages reported in hugepages-1048576kB > EAL: Probing VFIO support... > rte_pmd_af_xdp_probe(): Initializing pmd_af_xdp for net_af_xdp > init_internals(): Zero copy between umem and mbuf enabled. > Interactive-mode selected > testpmd: create a new mbuf pool <mbuf_pool_socket_0>: n=163456, > size=2176, socket=0 > testpmd: preferred mempool ops selected: ring_mp_mc > > Warning! port-topology=paired and odd forward ports number, the last port > will pair with itself. > > Configuring Port 0 (socket 0) > eth_rx_queue_setup(): Set up rx queue, rx queue id: 0, xsk queue id: 0 > libbpf: can't get next link: Invalid argument > eth_rx_queue_setup(): Set up rx queue, rx queue id: 1, xsk queue id: 1 > libbpf: can't get next link: Invalid argument > eth_rx_queue_setup(): Set up rx queue, rx queue id: 2, xsk queue id: 2 > libbpf: can't get next link: Invalid argument > Port 0: FA:0C:B1:0F:DF:01
Apologies for missing this email last week. Somehow it only reached my inbox today. I believe we got to the root of the problem here: https://github.com/xdp-project/xdp-tutorial/issues/255#issuecomment-953863354 Just including the resolution in this thread too, in case others find the same issue. Thanks, Ciara > ------ > > My test env: > DPDK: stable 19.11.6 > libbpf: git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git > OS：Centos 7.9 + kernel 5.4.155-1.el7.elrepo.x86_64 > > > Br, > Christian
