[ovs-dev] [PATCH v9 0/6] Convert DPDK configuration from command line to DB based

Aaron Conole aconole at redhat.com
Thu Feb 11 20:15:35 UTC 2016


Currently, configuration of DPDK parameters is done via the command line
through a --dpdk **OPTIONS** -- command line argument. This has a number of
challenges, including:
* It must be the first option passed to ovs-vswitchd
* It is the only datapath feature in OVS to be configured on the command line
* It requires specialized knowledge of sub-component command switches
* It also inteprets non-EAL arguments (confusing users)
* It is a broken model.


This series brings the following changes to openvswitch:
* All DPDK options are taken from the ovs database rather than the
  command line
* Non-EAL arguments also have separate database entries
* DPDK lcores are optionally auto-assigned to a single core based on the
  bridge coremask.
* DPDK options have default behaviors
* Updated documentation

v2:
* Dropped the vhost-user socket configuration options. Those can be re-added
  as an extension
* Incorporated feedback from Kevin Traynor.

v3:
* Went back to a global dpdk-init
* Language cleanup and various minor fixes

v4:
* Added a way to pass arbitrary eal arguments

v5:
* Restore the socket-mem default, and fix up the ovs-dev.py script, along
  with the manpage for ovsdb-server

v6:
* Correct a documentation issue with INSTALL.DPDK.md
* Correct a non-dpdk enabled OVS incorrect warning variable
* Remove an excess whitespace

v7:
* After testing by Christian with dpdk-alloc-mem

v8:
* Confirmed ``make check`` operation with and without dpdk.
  Retested on live-host

v9:
* Cleanup of comments
* Cleanup of one place where headers are specified
* Mark the dpdk coremask and numa config as optional
* Added 5/6 to scan the extras and warn the user when conflicting
  DB entries are present
* Acks given for all but patch 5/6

Aaron Conole (5):
  netdev-dpdk: Restore thread affinity after DPDK init
  netdev-dpdk: Convert initialization from cmdline to db
  netdev-dpdk: Autofill lcore coremask if absent
  netdev-dpdk: Allow arbitrary eal arguments
  NEWS: Announce the DPDK EAL configuration change

 FAQ.md                     |   6 +-
 INSTALL.DPDK.md            |  90 ++++++++++---
 NEWS                       |   5 +
 lib/netdev-dpdk.c          | 327 ++++++++++++++++++++++++++++++++++++++-------
 lib/netdev-dpdk.h          |  22 ++-
 utilities/ovs-dev.py       |   7 +-
 vswitchd/bridge.c          |   3 +
 vswitchd/ovs-vswitchd.8.in |   5 +-
 vswitchd/ovs-vswitchd.c    |  25 +---
 vswitchd/vswitch.xml       | 128 +++++++++++++++++-
 10 files changed, 515 insertions(+), 107 deletions(-)

-- 
2.5.0




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