<!DOCTYPE html> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> </head> <body> <div class="moz-cite-prefix">On 23/10/2024 07:07, Xiaohua Wang wrote: </div> <blockquote type="cite" cite="mid:DB5PR07MB95159C226487EC0A1E3A93A4FB4D2@DB5PR07MB9515.eurprd07.prod.outlook.com"> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <meta name="Generator" content="Microsoft Word 15 (filtered medium)"> <style>@font-face {font-family:"Cambria Math"; panose-1:2 4 5 3 5 4 6 3 2 4;}@font-face {font-family:DengXian; panose-1:2 1 6 0 3 1 1 1 1 1;}@font-face {font-family:Calibri; panose-1:2 15 5 2 2 2 4 3 2 4;}@font-face {font-family:"\@DengXian"; panose-1:2 1 6 0 3 1 1 1 1 1;}p.MsoNormal, li.MsoNormal, div.MsoNormal {margin:0in; font-size:11.0pt; font-family:"Calibri",sans-serif; mso-ligatures:standardcontextual;}a:link, span.MsoHyperlink {mso-style-priority:99; color:#0563C1; text-decoration:underline;}span.EmailStyle17 {mso-style-type:personal-compose; font-family:"Calibri",sans-serif; color:windowtext;}.MsoChpDefault {mso-style-type:export-only;}div.WordSection1 {page:WordSection1;}</style> <div class="WordSection1"> Hi,<o:p></o:p> <o:p> </o:p> dpdk-testpmd with AF_XDP PMD can't work on p1p1 (macvlan) interface, but can work on eth0 (veth) interface.<o:p></o:p> <o:p> </o:p> And is there a method to enable AF_XDP PMD to work in XDP SKB mode? Or add one option to set “SKB mode” in AF_XDP <a href="https://doc.dpdk.org/guides/nics/af_xdp.html" moz-do-not-send="true">Options</a> ? </div> </blockquote> [MT] I believe this is what the `force_copy=1` option does. But I'm not sure this will fix your issue as the log below says that it does try SKB mode. It could be a limitation of the Kernel driver. <blockquote type="cite" cite="mid:DB5PR07MB95159C226487EC0A1E3A93A4FB4D2@DB5PR07MB9515.eurprd07.prod.outlook.com"> <div class="WordSection1"> <o:p></o:p> <o:p> </o:p> ===============can't work on p1p1 (macvlan) interface====================<o:p></o:p> <o:p> </o:p> 5p8j4:/tmp # ./dpdk-testpmd --log-level=pmd.net.af_xdp:debug --no-huge --no-pci --no-telemetry --vdev net_af_xdp,iface=p1p1 -- --total-num-mbufs 8192<o:p></o:p> EAL: Detected CPU lcores: 40<o:p></o:p> EAL: Detected NUMA nodes: 1<o:p></o:p> EAL: Static memory layout is selected, amount of reserved memory can be adjusted with -m or --socket-mem<o:p></o:p> EAL: Detected static linkage of DPDK<o:p></o:p> EAL: Multi-process socket /var/run/dpdk/rte/mp_socket<o:p></o:p> EAL: Selected IOVA mode 'VA'<o:p></o:p> EAL: VFIO support initialized<o:p></o:p> rte_pmd_af_xdp_probe(): Initializing pmd_af_xdp for net_af_xdp<o:p></o:p> init_internals(): Zero copy between umem and mbuf enabled.<o:p></o:p> testpmd: create a new mbuf pool <mb_pool_0>: n=8192, size=2176, socket=0<o:p></o:p> testpmd: preferred mempool ops selected: ring_mp_mc<o:p></o:p> <o:p> </o:p> Warning! port-topology=paired and odd forward ports number, the last port will pair with itself.<o:p></o:p> <o:p> </o:p> Configuring Port 0 (socket 0)<o:p></o:p> eth_rx_queue_setup(): Set up rx queue, rx queue id: 0, xsk queue id: 0<o:p></o:p> libbpf: elf: skipping unrecognized data section(8) .xdp_run_config<o:p></o:p> libbpf: elf: skipping unrecognized data section(9) xdp_metadata<o:p></o:p> libbpf: elf: skipping unrecognized data section(7) xdp_metadata<o:p></o:p> libbpf: prog 'xdp_pass': BPF program load failed: Invalid argument<o:p></o:p> libbpf: prog 'xdp_pass': failed to load: -22<o:p></o:p> libbpf: failed to load object '/usr/lib64/bpf/xdp-dispatcher.o'<o:p></o:p> libbpf: elf: skipping unrecognized data section(7) xdp_metadata<o:p></o:p> libbpf: elf: skipping unrecognized data section(7) xdp_metadata<o:p></o:p> libbpf: elf: skipping unrecognized data section(7) xdp_metadata<o:p></o:p> libbpf: Kernel error message: Underlying driver does not support XDP in native mode<o:p></o:p> libxdp: Error attaching XDP program to ifindex 5: Operation not supported<o:p></o:p> libxdp: XDP mode not supported; try using SKB mode </div> </blockquote> [MT] Here it attempts SKB mode, then fails <blockquote type="cite" cite="mid:DB5PR07MB95159C226487EC0A1E3A93A4FB4D2@DB5PR07MB9515.eurprd07.prod.outlook.com"> <div class="WordSection1"> xsk_configure(): Failed to create xsk socket.<o:p></o:p> eth_rx_queue_setup(): Failed to configure xdp socket<o:p></o:p> Fail to configure port 0 rx queues<o:p></o:p> rte_pmd_af_xdp_remove(): Removing AF_XDP ethdev on numa socket 0<o:p></o:p> eth_dev_close(): Closing AF_XDP ethdev on numa socket 0<o:p></o:p> Port 0 is closed<o:p></o:p> EAL: Error - exiting with code: 1<o:p></o:p> Cause: Start ports failed<o:p></o:p> EAL: Already called cleanup<o:p></o:p> <o:p> </o:p> </div> </blockquote> </body> </html>