Hello,
We managed to compile OpenVSwitch to a Blackberry QNX. Idea is to use complete
user-space switching in OvS (like it is done for NetBSD, QNX netstack is based
on it ). In order for compilation to pass, compile flag __NetBSD__ was needed
to be added and some small changes in code :
- replace #include <sys/types.h> with #include <sys/types_bsd.h>
- replace #include <timeval.h> with #include <sys/times.h>
By following instructions from
https://docs.openvswitch.org/en/latest/intro/install/userspace/ we get next
error in ovs-vswitchd.log and no bridge device was created.
#/data/tmp/ovs/bin/ovs-vsctl add-br br0
2021-06-08T12:02:38.455Z|03726|ofproto|WARN|unknown datapath type system
2021-06-08T12:02:38.455Z|03727|ofproto|WARN|could not create datapath br0 of
unknown type system
2021-06-08T12:02:38.456Z|03728|bridge|ERR|failed to create bridge br0: Address
family not supported by protocol family
# /data/tmp/ovs/bin/ovs-vsctl set bridge br0 datapath_type=netdev
2021-06-08T12:02:47.896Z|03730|dpif|WARN|failed to create datapath ovs-netdev:
Invalid argument
2021-06-08T12:02:47.896Z|03731|ofproto_dpif|ERR|failed to open datapath of type
netdev: Invalid argument
2021-06-08T12:02:47.897Z|03732|ofproto|ERR|failed to open datapath br0: Invalid
argument
2021-06-08T12:02:47.898Z|03733|bridge|ERR|failed to create bridge br0: Invalid
argument
When trying to turn on device:
# ifconfig br0 up
ifconfig: SIOCGIFFLAGS br0: No such device or address
#
But, it is added in the ovs-db.
# /data/tmp/ovs/bin/ovs-vsctl show
e395c275-c071-4887-adf3-dfe0e8ce5d8d
Bridge br0
datapath_type: netdev
Port br0
Interface br0
type: internal
ovs_version: "2.15.90"
#
Did you maybe test user-space switching on NetBsd (at least I didn't manage to
find)?
Did you try to port it on QNX?
Do we need to implement dpif-provider/netdev-provider for QNX in order for OvS
to work, or can we reuse existing NetBSD?
If you have any information or hint, I would appreciate if you can share it
with us.
Thanks in Advance,
Miladin Jovanovic
Software Engineer
Tel: +381 21 4801 1402
[email protected]
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