Hi Manohar, hi Leo, On 08/13/2018 07:51 AM, Chang-an Song wrote: > Hello Manohar > > I also tried the same test, and the following error message came out. > If possible, > Could you let me know where did you find native XDP support for the > veth interface in 4.15 kernel? The 4.15 kernel does not have native XDP support in the kernel, so only generic XDP would work for veth. Native XDP for veth is scheduled for 4.19 kernel. You can test it out from bpf-next kernel tree here: git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git > # ip -force link set dev veth1 xdpdrv obj test_xdp_redirect.o sec > redirect_to_222 > RTNETLINK answers: Operation not supported > > # uname -a > Linux xdptest 4.17.0-rc7+ #4 SMP Mon Aug 13 13:41:24 KST 2018 x86_64 > x86_64 x86_64 GNU/Linux > > > This is the native XDP list I know as below, > - Mellanox: mlx4 (v4.10) + mlx5 (v4.9) > - Netronome: nfp (v4.10) > - Virtio-net (v4.10) > - Cavium/Qlogic: qede (v4.10) > - Cavium: thunder/nicvf (v4.12) > - Broadcom: bnxt (v4.12) > - Intel: ixgbe (v4.12) + i40e (net-next) There are a couple missing, for full list please see: http://cilium.readthedocs.io/en/latest/bpf/#xdp Thanks, Daniel > If I am incorrect information, please tell me, again. > > BR/Leo > > On Sun, Aug 12, 2018 at 4:22 PM Manohar Kumar <forwardinglnx@xxxxxxxxx> wrote: >> >> Hello, >> >> I am trying out XDP using the example >> https://github.com/torvalds/linux/blob/master/tools/testing/selftests/bpf/test_xdp_redirect.sh >> >> To set the xdp program instead of using xdpgeneric I did >> >> ip link set dev veth1 xdp obj test_xdp_redirect.o sec redirect_to_222 >> >> My kernel version is 4.15.0 which I think has native XDP support for >> veth. But from the ip link ouptut it looks like the generic XDP is >> being used and not the native XDP for veth. >> >> What is the right way to make use of the native XDP for veth ? >> >> root@ubuntu-G551JW:~# ip link show dev veth1 >> 111: veth1@if18: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 xdpgeneric >> qdisc noqueue state UP mode DEFAULT group default qlen 1000 >> link/ether c2:ff:f4:d9:15:8f brd ff:ff:ff:ff:ff:ff link-netnsid 0 >> prog/xdp id 32 tag d92aa6f7de3bd7d0 jited >> root@ubuntu-G551JW:~# >> >> Thanks for the help. >> >> -Kumar
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