[Bug 1625542] Re: --vhost-owner --vhost-perm no more transferred to DPDK EAL commandline

[Timo Koehler]

See my results below. 
When restarting ovs-vswitchd it complains: unrecognized option '--vhost-owner'

I use ovs master (2.6.90) and dpdk 16.07. Do I still need to apply fix-
vhost-user-socket-permission.patch?

Result:
---------
ovs-vsctl --no-wait set Open_vSwitch . other_config:dpdk-extra="--vhost-owner libvirt-qemu:kvm --vhost-perm 0664"

root at compute29:/var/run/openvswitch# ovs-vsctl get Open_vSwitch . other_config                                                                                                                                                         
{dpdk-extra="--vhost-owner libvirt-qemu:kvm --vhost-perm 0664", dpdk-init="true", dpdk-lcore-mask="0x300", dpdk-socket-mem="4096,4096"}

root at compute29:/var/run/openvswitch# export DB_SOCK=/var/run/openvswitch/db.sock
root at compute29:/var/run/openvswitch# ovs-vswitchd unix:$DB_SOCK -vconsole:emer -vsyslog:err -vfile:info --mlockall --no-chdir \
> --log-file=/var/log/openvswitch/ovs-vswitchd.log \
> --pidfile=/var/run/openvswitch/ovs-vswitchd.pid \
> --detach \
> --monitor
ovs-vswitchd: unrecognized option '--vhost-owner'
EAL: Detected 32 lcore(s)
ovs-vswitchd: unrecognized option '--vhost-owner'

Versions:
----------
root at compute29:/usr/src/ovs# ovs-vsctl --version
ovs-vsctl (Open vSwitch) 2.6.90
DB Schema 7.14.0

dpdk 16.07
(from: http://dpdk.org/browse/dpdk/snapshot/dpdk-16.07.zip)

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https://bugs.launchpad.net/bugs/1625542

Title:
  --vhost-owner --vhost-perm no more transferred to DPDK EAL commandline

Status in dpdk package in Ubuntu:
  Incomplete
Status in openvswitch package in Ubuntu:
  Triaged

Bug description:
  Hi,
  this was reported by an early tester of OVS 2.6 / DPDK 16.07 packages in yakkety.

  TL;DR
   - the old --vhost-owner --vhost-perm seem no more to be passed to the DPDK commandline
   - OVS complains about ovs-vswitchd: unrecognized option '--vhost-owner'

  Example:
  ovs-vswitchd \
  --vhost-owner libvirt-qemu:kvm \
  --vhost-perm 0664 \
  -- unix:$DB_SOCK -vconsole:emer -vsyslog:err -vfile:info \
  --mlockall --no-chdir \
  --log-file=/var/log/openvswitch/ovs-vswitchd.log \
  --pidfile=/var/run/openvswitch/ovs-vswitchd.pid --detach --monitor
  ovs-vswitchd: unrecognized option '--vhost-owner'

  I expect this to be either of these two:
  - actually those should be after a --dpdk switch to get to the DPDK EAL commandline. Just how we describe it at https://help.ubuntu.com/16.04/serverguide/DPDK.html#dpdk-openvswitch
  OR
  - An upstream change on OVS 2.6 now interferes and breaks the passing of these options. A lot was changed to push DPDK config to the ovsdb so this can be possible.

  See http://openvswitch.org/support/dist-docs/INSTALL.DPDK-
  ADVANCED.md.html for most of the new other_config values.

  I expect to be the second more than the first case due to DPDK
  configuration being completely changed into an ovsdb based operation.
  Search for dpdk here http://openvswitch.org/support/dist-docs/ovs-
  vswitchd.conf.db.5.html.

  But since neither DPDK nor OVS took the ownership control patches
  (https://www.mail-archive.com/dev@openvswitch.org/msg69706.html) it
  has to be a delta that we add once we have final OVS 2.6.

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