On 11/8/18 6:33 AM, Paweł Staszewski wrote: > > > W dniu 07.11.2018 o 22:06, David Ahern pisze: >> On 11/3/18 6:24 PM, Paweł Staszewski wrote: >>>> Does your setup have any other device types besides physical ports with >>>> VLANs (e.g., any macvlans or bonds)? >>>> >>>> >>> no. >>> just >>> phy(mlnx)->vlans only config >> VLAN and non-VLAN (and a mix) seem to work ok. Patches are here: >> https://github.com/dsahern/linux.git bpf/kernel-tables-wip >> >> I got lazy with the vlan exports; right now it requires 8021q to be >> builtin (CONFIG_VLAN_8021Q=y) >> >> You can use the xdp_fwd sample: >> make O=kbuild -C samples/bpf -j 8 >> >> Copy samples/bpf/xdp_fwd_kern.o and samples/bpf/xdp_fwd to the server >> and run: >> ./xdp_fwd <list of NIC ports> >> >> e.g., in my testing I run: >> xdp_fwd eth1 eth2 eth3 eth4 >> >> All of the relevant forwarding ports need to be on the same command >> line. This version populates a second map to verify the egress port has >> XDP enabled. > Installed today on some lab server with mellanox connectx4 > > And trying some simple static routing first - but after enabling xdp > program - receiver is not receiving frames > > Route table is simple as possible for tests :) > > icmp ping test send from 192.168.22.237 to 172.16.0.2 - incomming > packets on vlan 4081 > > ip r > default via 192.168.22.236 dev vlan4081 > 172.16.0.0/30 dev vlan1740 proto kernel scope link src 172.16.0.1 > 192.168.22.0/24 dev vlan4081 proto kernel scope link src 192.168.22.205 > > neigh table: > ip neigh ls > > 192.168.22.237 dev vlan4081 lladdr 00:25:90:fb:a6:8d REACHABLE > 172.16.0.2 dev vlan1740 lladdr ac:1f:6b:2c:2e:5a REACHABLE > > and interfaces: > 4: enp175s0f0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state > UP mode DEFAULT group default qlen 1000 > link/ether ac:1f:6b:07:c8:90 brd ff:ff:ff:ff:ff:ff > 5: enp175s0f1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state > UP mode DEFAULT group default qlen 1000 > link/ether ac:1f:6b:07:c8:91 brd ff:ff:ff:ff:ff:ff > 6: vlan4081@enp175s0f0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc > noqueue state UP mode DEFAULT group default qlen 1000 > link/ether ac:1f:6b:07:c8:90 brd ff:ff:ff:ff:ff:ff > 7: vlan1740@enp175s0f1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc > noqueue state UP mode DEFAULT group default qlen 1000 > link/ether ac:1f:6b:07:c8:91 brd ff:ff:ff:ff:ff:ff > > 5: enp175s0f1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 xdp/id:5 qdisc > mq state UP group default qlen 1000 > link/ether ac:1f:6b:07:c8:91 brd ff:ff:ff:ff:ff:ff > inet6 fe80::ae1f:6bff:fe07:c891/64 scope link > valid_lft forever preferred_lft forever > 6: vlan4081@enp175s0f0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc > noqueue state UP group default qlen 1000 > link/ether ac:1f:6b:07:c8:90 brd ff:ff:ff:ff:ff:ff > inet 192.168.22.205/24 scope global vlan4081 > valid_lft forever preferred_lft forever > inet6 fe80::ae1f:6bff:fe07:c890/64 scope link > valid_lft forever preferred_lft forever > 7: vlan1740@enp175s0f1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc > noqueue state UP group default qlen 1000 > link/ether ac:1f:6b:07:c8:91 brd ff:ff:ff:ff:ff:ff > inet 172.16.0.1/30 scope global vlan1740 > valid_lft forever preferred_lft forever > inet6 fe80::ae1f:6bff:fe07:c891/64 scope link > valid_lft forever preferred_lft forever > > > xdp program detached: > Receiving side tcpdump: > 14:28:09.141233 IP 192.168.22.237 > 172.16.0.2: ICMP echo request, id > 30227, seq 487, length 64 > > I can see icmp requests > > > enabling xdp > ./xdp_fwd enp175s0f1 enp175s0f0 > > 4: enp175s0f0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 xdp qdisc mq > state UP mode DEFAULT group default qlen 1000 > link/ether ac:1f:6b:07:c8:90 brd ff:ff:ff:ff:ff:ff > prog/xdp id 5 tag 3c231ff1e5e77f3f > 5: enp175s0f1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 xdp qdisc mq > state UP mode DEFAULT group default qlen 1000 > link/ether ac:1f:6b:07:c8:91 brd ff:ff:ff:ff:ff:ff > prog/xdp id 5 tag 3c231ff1e5e77f3f > 6: vlan4081@enp175s0f0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc > noqueue state UP mode DEFAULT group default qlen 1000 > link/ether ac:1f:6b:07:c8:90 brd ff:ff:ff:ff:ff:ff > 7: vlan1740@enp175s0f1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc > noqueue state UP mode DEFAULT group default qlen 1000 > link/ether ac:1f:6b:07:c8:91 brd ff:ff:ff:ff:ff:ff > What hardware is this?
Start with: echo 1 > /sys/kernel/debug/tracing/events/xdp/enable cat /sys/kernel/debug/tracing/trace_pipe >From there, you can check the FIB lookups: sysctl -w kernel.perf_event_max_stack=16 perf record -e fib:* -a -g -- sleep 5 perf script
