Hi Xuekun, > Thanks for reply. However my kernel is 5.7.19, and I checked that only the > first patch was included. > So, any more thoughts?
Can you try https://gerrit.fd.io/r/c/vpp/+/32384 and see if it fixes you issue? Best ben > -----Original Message----- > From: Benoit Ganne (bganne) <bga...@cisco.com> > Sent: Monday, May 17, 2021 4:26 PM > To: Hu, Xuekun <xuekun...@intel.com>; vpp-dev@lists.fd.io > Subject: RE: AF_XDP usage help in VPP21.01 > > Hi Xuekun, > > I suspect you are using a Linux kernel >= 5.9. There was an ABI change > between 5.8 and 5.9, the issue is discussed here: > https://lore.kernel.org/bpf/BYAPR11MB365382C5DB1E5FCC53242609C1549@BYAPR11 > MB3653.namprd11.prod.outlook.com/ > I'd recommend using a Linux kernel between 5.6 and 5.9 for now until those > issues are resolved. > > Best > ben > > > -----Original Message----- > > From: vpp-dev@lists.fd.io <vpp-dev@lists.fd.io> On Behalf Of Xuekun > > Sent: jeudi 13 mai 2021 15:17 > > To: vpp-dev@lists.fd.io > > Subject: [vpp-dev] AF_XDP usage help in VPP21.01 > > > > Hi, All > > > > > > > > I used VPP21.01 and AF_XDP on a physical nic. > > > > I followed the guide in > > https://docs.fd.io/vpp/21.01/d8/d44/af_xdp_doc.html > > <https://docs.fd.io/vpp/21.01/d8/d44/af_xdp_doc.html> that > > > > 1. ip link set dev <iface> promisc on > > 2. vppctl create int af_xdp host-if ... // load the default > > one, which I think should forward all received packets from kernel to > VPP > > 3. vppctl set int mac address <iface> <mac> // set to the NIC MAC. > > 4. vppctl set int ip addr ... > > > > > > > > However "vppctl ping" still failed with "l3 mac mismatch". > > > > > > > > vpp# show errors > > > > Count Node Reason > > Severity > > > > 20 ip4-glean ARP requests sent > > error > > > > 20 enp9s0f0/0-tx sendto required > > error > > > > 82 ethernet-input l3 mac mismatch > > error > > > > From the remote ping target machine, tcpdump did show receiving the > > arp request and sending the arp reply with the correct dmac. > > > > > > > > However in VPP, "trace add af_xdp-input 10", and "show trace" > > > > Packet 1 > > > > > > > > 00:14:16:539735: af_xdp-input > > > > af_xdp: enp9s0f0/0 (2) next-node ethernet-input > > > > 00:14:16:539744: ethernet-input > > > > frame: flags 0x1, hw-if-index 2, sw-if-index 2 > > > > 0x0000: 00:00:00:00:00:00 -> 00:00:00:00:00:00 > > > > 00:14:16:539748: error-punt > > > > rx:enp9s0f0/0 > > > > 00:14:16:539750: punt > > > > ethernet-input: l3 mac mismatch > > > > > > > > Does anyone have any ideas? > > > > Many thanks. > > > > > > > > Thx, Xuekun > > > >
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