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

[ChristianEhrhardt]

In fact this is the new way

other_config : dpdk-extra: optional string
              Specifies additional eal command line arguments for DPDK.

              The  default  is  empty. Changing this value requires restarting
              the daemon


So it would be something like this before starting ovs with dpdk enabled.
1. follow all you need from http://openvswitch.org/support/dist-docs/INSTALL.DPDK.md.html
2. follow all you need from http://openvswitch.org/support/dist-docs/INSTALL.DPDK-ADVANCED.md.html
3. to fixup the permissions you'd do
   ovs-vsctl --no-wait set Open_vSwitch . other_config:dpdk-init="--vhost-owner libvirt-qemu:kvm 
--vhost-perm 0664"

I'll keep the bug open until I verified that works

** Changed in: openvswitch (Ubuntu)
       Status: New => Triaged

** Changed in: openvswitch (Ubuntu)
   Importance: Undecided => Medium

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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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