I'm trying to configure a flow between a DPDK port and a VM virtio port.
Following instructions here:
https://github.com/openvswitch/ovs/blob/master/INSTALL.DPDK
I created br0 bridge, set dapapath_type to "netdev", added dpdk0 and dpdk1
ports and created a virsh host with the following configuration:
<interface type='bridge'>
<mac address='52:54:00:95:af:b8'/>
<source bridge='br0'/>
<virtualport type='openvswitch'>
<parameters interfaceid='d45aa931-1d3e-4c32-be8c-5091f1cb6134'/>
</virtualport>
<model type='rtl8139'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x05'
function='0x0'/>
</interface>
As expected, this creates bridge br0 and ports vnet1, dpdk0 and dpdk1.
But when trying to configure a flow between vnet and dpdk ports ovs-ofctl
fails with:
"br0 is not a bridge or a socket"
A quick investigation reveals the problem appears when br0 bridge
datapath_type is changed to "netdev". Somehow
/usr/local/var/run/openvswitch/br0.mgmt socket is removed and ovs-ofctl
can't find the bridge. ovs-vsctl is probably using another mechanism to list
bridge information because it works when ovs-ofctl doesn't.
Simplified steps to reproduce and corresponding output of ovs-vswitchd
(commands executed as root).
./utilities/ovs-vsctl add-br br0
# ovs-vswitchd output
#
# 2014-10-01T12:24:55Z|00049|dpif|WARN|system@ovs-system: failed to
put[create] (Invalid argument)
skb_priority(0),skb_mark(0),recirc_id(0x1),dp_hash(0x1),in_port(0),eth(src=0
0:00:00:00:00:00,dst=00:00:00:00:00:00)
# 2014-10-01T12:24:55Z|00050|ofproto_dpif|INFO|system@ovs-system: Datapath
does not support recirculation
# 2014-10-01T12:24:55Z|00051|dpif|WARN|system@ovs-system: failed to
put[create] (Invalid argument)
skb_priority(0),skb_mark(0),in_port(0),eth(src=00:00:00:00:00:00,dst=00:00:0
0:00:00:00),eth_type(0x8847),mpls(label=0,tc=0,ttl=0,bos=1)
#2014-10-01T12:24:55Z|00052|ofproto_dpif|INFO|system@ovs-system: MPLS label
stack length probed as 0
# 2014-10-01T12:24:55Z|00053|dpif|WARN|system@ovs-system: execute
set(eth(src=53:53:53:53:53:53/7f:7f:7f:7f:7f:7f,dst=53:53:53:53:53:53/7f:7f:
7f:7f:7f:7f)) failed (Invalid argument) on packet
metadata=0,in_port=0,vlan_tci=0x0000,dl_src=00:00:00:00:00:00,dl_dst=00:00:0
0:00:00:00,dl_type=0x1234
# 2014-10-01T12:24:55Z|00054|ofproto_dpif|INFO|system@ovs-system: datapath
does not support masked set action feature.
# 2014-10-01T12:24:55Z|00001|ofproto_dpif_upcall(handler343)|INFO|received
packet on unassociated datapath port 0
# 2014-10-01T12:24:55Z|00055|bridge|INFO|bridge br0: added interface br0 on
port 65534
# 2014-10-01T12:24:55Z|00056|bridge|INFO|bridge br0: using datapath ID
0000f2f5632d0d47
# 2014-10-01T12:24:55Z|00057|connmgr|INFO|br0: added service controller
"punix:/usr/local/var/run/openvswitch/br0.mgmt"
./utilities/ovs-ofctl show br0
# OFPT_FEATURES_REPLY (xid=0x2): dpid:0000f2f5632d0d47
# n_tables:254, n_buffers:256
# capabilities: FLOW_STATS TABLE_STATS PORT_STATS QUEUE_STATS ARP_MATCH_IP
# actions: output enqueue set_vlan_vid set_vlan_pcp strip_vlan mod_dl_src
mod_dl_dst mod_nw_src mod_nw_dst mod_nw_tos mod_tp_src mod_tp_dst
# LOCAL(br0): addr:f2:f5:63:2d:0d:47
# config: PORT_DOWN
# state: LINK_DOWN
# speed: 0 Mbps now, 0 Mbps max
# OFPT_GET_CONFIG_REPLY (xid=0x4): frags=normal miss_send_len=0
ls -1 /usr/local/var/run/openvswitch | grep br0
# br0.mgmt
# br0.snoop
./ utilities/ovs-vsctl set bridge br0 datapath_type=netdev
# ovs-vswitchd output
#
# 2014-10-01T12:26:11Z|00058|ofproto_dpif|INFO|netdev@ovs-netdev: Datapath
supports recirculation
# 2014-10-01T12:26:11Z|00059|ofproto_dpif|INFO|netdev@ovs-netdev: MPLS label
stack length probed as 3
# 2014-10-01T12:26:11Z|00060|bridge|INFO|bridge br0: added interface br0 on
port 65534
# 2014-10-01T12:26:11Z|00061|netdev_linux|WARN|br0: obtaining netdev stats
via vport failed (No such device)
# 2014-10-01T12:26:11Z|00062|bridge|INFO|bridge br0: using datapath ID
0000f2f5632d0d47
# 2014-10-01T12:26:11Z|00063|connmgr|INFO|br0: added service controller
"punix:/usr/local/var/run/openvswitch/br0.mgmt"
# 2014-10-01T12:26:15Z|00064|netdev_linux|WARN|br0: obtaining netdev stats
via vport failed (No such device)
./utilities/ovs-ofctl show br0
# ovs-ofctl: br0 is not a bridge or a socket
ls -1 /usr/local/var/run/openvswitch | grep br0
# br0.snoop
./utilities/ovs-vsctl show
# 3a8ba2cd-1749-4c2a-8fd4-c4b7429cea87
# Bridge "br0"
# Port "br0"
# Interface "br0"
# type: internal
./utilities/ovs-vsctl del-br br0
# ovs-vswitchd output
#
# 2014-10-01T12:27:04Z|00003|fatal_signal(urcu1)|WARN|could not unlink
"/usr/local/var/run/openvswitch/br0.mgmt" (No such file or directory)
Repositories & versions used:
cd ovs; git log -n1 --pretty=format:%H%d; grep url .git/config; cd ..
# a07e26bf367075d7b31f3f180b65605412b0624b (HEAD, origin/master,
origin/HEAD, master)
# url = https://github.com/openvswitch/ovs.git
cd dpdk; git log -n1 --pretty=format:%H%d; grep url .git/config; cd ..
# 9db7084fcdf6d57b892312ca641a97356629c04a (HEAD, v1.7.0)
# url = git://dpdk.org/dpdk
Is this a configuration issue?
Thanks,
Daniel
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