Hi all, I have a machine that works without a flow using DPDK 22.11.4: # dpdk-devbind.py --bind=vfio-pci 0000:15:00.0 # dpdk-devbind.py --bind=vfio-pci 0000:15:00.3 # dpdk-testpmd -a 0000:15:00.0 -a 0000:15:00.3 -- --tx-first
The dpdk-testpmd utility works as expected: +++++++++++++++ Accumulated forward statistics for all ports++++++ RX-packets: 29666849 RX-dropped: 0 RX-total: 29666849 TX-packets: 29666849 TX-dropped: 0 TX-total: 29666849 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ I would like to test the same machine with XDP (libbpf 0.7.0 and libxdp 1.2.8) on the same NICs: # reboot # export LIBXDP_OBJECT_PATH=/root/libxdp (*) # ulimit -l unlimited # dpdk-testpmd --vdev net_af_xdp0,iface=enp21s0f0 --vdev net_af_xdp1,iface=enp21s0f3 -- --tx-first In this case dpdk-testpmd doesn't work: +++++++++++++++ Accumulated forward statistics for all ports++++ RX-packets: 0 RX-dropped: 0 RX-total: 0 TX-packets: 64 TX-dropped: 0 TX-total: 64 ++++++++++++++++++++++++++++++++++++++++++++++++++++ The only suspicious part in the output of the dpdk-testpmd utility is: [...] libxdp: XDP flag not supported by libxdp. libbpf: prog 'xdp_dispatcher': BPF program load failed: Invalid argument libbpf: prog 'xdp_dispatcher': -- BEGIN PROG LOAD LOG -- Validating prog0() func#1... btf_vmlinux is malformed Arg#0 type PTR in prog0() is not supported yet. processed 0 insns (limit 1000000) max_states_per_insn 0 total_states 0 peak_states 0 mark_read 0 -- END PROG LOAD LOG -- libbpf: failed to load program 'xdp_dispatcher' libbpf: failed to load object 'xdp-dispatcher.o' libxdp: Failed to load dispatcher: Invalid argument libxdp: Falling back to loading single prog without dispatcher [...] I made a mistake for sure but I haven't understood what yet. Do you have any suggestions for me, please? Thank you very much! Ciao, Alessio (*) This doesn't seem to have any effect I copied all file that I thought relevant in /root/libxdp: Makefile, compat.h, libxdp.c, libxdp.pc, protocol.org, xdp-dispatcher.c, xdp-dispatcher.ll, xsk_def_xdp_prog.c, xsk_def_xdp_prog.ll, xsk_def_xdp_prog_5.3.embed.o, README.org, libxdp.3, libxdp.map, libxdp.pc.template, staticobjs, xdp-dispatcher.c.in, xdp-dispatcher.o, xsk_def_xdp_prog.embed.o, xsk_def_xdp_prog.o, xsk_def_xdp_prog_5.3.ll, bpf_instr.h, libxdp.a, libxdp.mk, libxdp_internal.h, tests, xdp-dispatcher.embed.o, xsk.c, xsk_def_xdp_prog.h, xsk_def_xdp_prog_5.3.c and xsk_def_xdp_prog_5.3.o.
