I try to run OVS in VMware VM with two X710 VFs (only one is relevant for
simplified OVS config posted below). Ports are configured as SR-IOV
interfaces
in port group using virtual guest tagging.
With simplified config posted below I should be able to ping
interface vl1075 from other hosts on vlan 1075 but I'm not. Ovs-ofctl
dump-flows shows no incomming packets. Ovs-tcpdump doesn't show incomming
packets either.
I don't know what exactly the problem is but interestingly, there seems to
be a workaround.
When I run the DPDK's testpmd and then OVS (the same configuration that
fails
without workaraound) OVS works fine till next ESXi reboot.
OVS:
Interfaces:
root@test2k:~# dpdk-devbind.py -s
Network devices using DPDK-compatible driver
============================================
0000:0b:00.0 'Ethernet Virtual Function 700 Series 154c' drv=vfio-pci
unused=iavf
0000:13:00.0 'Ethernet Virtual Function 700 Series 154c' drv=vfio-pci
unused=iavf
[ ... ]
config:
ovs-vsctl emer-reset
ovs-vsctl set Open_vSwitch . "other_config:dpdk-init=true"
ovs-vsctl set Open_vSwitch . "other_config:hw-offload=true"
ovs-vsctl set Open_vSwitch . "other_config:per-port-memory=true"
ovs-vsctl set Open_vSwitch . "other_config:dpdk-alloc-mem=2048"
ovs-vsctl set Open_vSwitch . other_config:smc-enable=true
ovs-vsctl set Open_vSwitch . other_config:emc-insert-inv-prob=1
ovs-vsctl --if-exists del-br ovsbr0
ovs-vsctl add-br ovsbr0 -- set bridge ovsbr0 datapath_type=netdev
ovs-vsctl set bridge ovsbr0
protocols=OpenFlow10,OpenFlow11,OpenFlow12,OpenFlow13,OpenFlow14,OpenFlow15
ovs-vsctl add-port ovsbr0 dp_13000 -- set Interface dp_13000 type=dpdk
"options:dpdk-devargs=13:00.0" -- set interface dp_13000 ofport_request=4
ovs-vsctl set port dp_13000 trunks=1075
ovs-vsctl add-br vl1075 ovsbr0 1075
sysctl -w net.ipv6.conf.vl1075.disable_ipv6=1 > /dev/null
ip a add 192.168.77.3/24 dev vl1075
ip l set up vl1075
ovs-ofctl del-flows ovsbr0
ovs-appctl dpctl/del-flows
ovs-ofctl -O OpenFlow15 add-flow ovsbr0
"table=0,priority=20,in_port=vl1075,actions=push_vlan:0x8100,mod_vlan_vid:1075,output:dp_13000"
ovs-ofctl -O OpenFlow15 add-flow ovsbr0
"table=0,priority=200,in_port=dp_13000,dl_vlan=1075,actions=strip_vlan,output:vl1075"
workaround testpmd config
dpdk-testpmd -n 2 --socket-mem 1024 -l 0,1,2 -a 0000:0b:00.0 -a
0000:13:00.0 -- --port-topology=paired --forward-mode=io --nb-cores=2
--txd=4096 --rxd=4096 --cmdline-file=cmd.list << END
END
cmd.list contents:
set fwd mac
set eth-peer 0 00:0c:29:29:7d:8a
set eth-peer 1 00:0c:29:29:7d:8b
vlan set filter on 0
vlan set filter on 1
vlan set strip on 0
vlan set strip on 1
rx_vlan add 1075 1
rx_vlan add 1076 0
port stop 0
port stop 1
tx_vlan set 1 1075
tx_vlan set 0 1076
port start 0
port start 1
quit
Versions being used:
ESXi: 7.0U3, i40en Version: 2.2.7.0, NIC Firmware Version: 8.40 0x8000af82
20.5.13
guest OS: Ubuntu Kinetic
Linux version 5.15.0-27-generic (buildd@ubuntu) (gcc (Ubuntu
11.2.0-19ubuntu1) 11.2.0, GNU ld (GNU Binutils for Ubuntu) 2.38) #28-Ubuntu
SMP Thu Apr 14 04:55:28 UTC 2022
OVS 3.0.0 (from Kinetic apt repos)
DPDK: 21.11.1 (from Kinetic apt repos)
Other possibly usefull outputs:
root@345fd4e20203:~# ovs-dpctl show
root@345fd4e20203:~# ovs-ofctl dump-flows ovsbr0
cookie=0x0, duration=464.397s, table=0, n_packets=0, n_bytes=0,
priority=200,in_port="dp_13000",dl_vlan=1075
actions=strip_vlan,output:vl1075
cookie=0x0, duration=464.411s, table=0, n_packets=0, n_bytes=0,
priority=20,in_port=vl1075 actions=mod_vlan_vid:1075,output:"dp_13000"
root@345fd4e20203:~# ovs-appctl dpctl/dump-flows
flow-dump from pmd on cpu core: 3
recirc_id(0),in_port(2),packet_type(ns=0,id=0),eth_type(0/0xffff),
packets:239, bytes:15264, used:1.339s, actions:drop
root@345fd4e20203:~# ovs-appctl dpctl/dump-flows
flow-dump from pmd on cpu core: 3
recirc_id(0),in_port(2),packet_type(ns=0,id=0),eth_type(0/0xffff),
packets:244, bytes:15564, used:1.691s, actions:drop
recirc_id(0),in_port(2),packet_type(ns=0,id=0),eth_type(0x88cc), packets:0,
bytes:0, used:never, actions:drop
root@345fd4e20203:~#
root@345fd4e20203:~# ovs-appctl dpif/show
netdev@ovs-netdev: hit:455 missed:41
ovsbr0:
dp_13000 4/2: (dpdk: configured_rx_queues=1,
configured_rxq_descriptors=2048, configured_tx_queues=2,
configured_txq_descriptors=2048, lsc_interrupt_mode=false, mtu=1500,
requested_rx_queues=1, requested_rxq_descriptors=2048,
requested_tx_queues=2, requested_txq_descriptors=2048,
rx_csum_offload=true, tx_tso_offload=false)
ovsbr0 65534/1: (tap)
vl1075 1/3: (tap)
root@345fd4e20203:~# ovs-vsctl show
4cbe326a-fda7-4102-bf47-f7c16c49e2e5
Bridge ovsbr0
datapath_type: netdev
Port ovsbr0
Interface ovsbr0
type: internal
Port vl1075
tag: 1075
Interface vl1075
type: internal
Port dp_13000
trunks: [1075]
Interface dp_13000
type: dpdk
options: {dpdk-devargs="13:00.0"}
root@345fd4e20203:~#
Thanks in advance for any help.
Paweł
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