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* netdev-offload-tc: Conntrack ALGs are not supported with tc.Eelco Chaudron2023-02-091-0/+11
| | | | | | | | | | | | | | | tc does not support conntrack ALGs. Even worse, with tc enabled, they should not be used/configured at all. This is because even though TC will ignore the rules with ALG configured, i.e., they will flow through the kernel module, return traffic might flow through a tc conntrack rule, and it will not invoke the ALG helper. Fixes: 576126a931cd ("netdev-offload-tc: Add conntrack support") Signed-off-by: Eelco Chaudron <echaudro@redhat.com> Acked-by: Roi Dayan <roid@nvidia.com> Reviewed-by: Simon Horman <simon.horman@corigine.com> Tested-by: Simon Horman <simon.horman@corigine.com> Signed-off-by: Ilya Maximets <i.maximets@ovn.org>
* Documentation: Fix link to Netperf.David Marchand2023-01-111-4/+4
| | | | | | | netperf.org was shut down in favor of some HP related resources. Signed-off-by: David Marchand <david.marchand@redhat.com> Signed-off-by: Ilya Maximets <i.maximets@ovn.org>
* xenserver: Remove xenserver.Greg Rose2022-08-154-8/+4
| | | | | | | | | | | | | Remove the current xenserver implementation - it is obsolete and since 3.0 we do not support kernel module builds [1]. 1. https://mail.openvswitch.org/pipermail/ovs-dev/2022-July/395789.html [i.maximets] Can be added back if people willing to maintain it will be found. Signed-off-by: Greg Rose <gvrose8192@gmail.com> Signed-off-by: Ilya Maximets <i.maximets@ovn.org>
* doc: Add meter offload topic documentJianbo Liu2022-07-112-0/+115
| | | | | | | | For now, add introduction and the limitation of meter offload. Signed-off-by: Jianbo Liu <jianbol@nvidia.com> Acked-by: Eelco Chaudron <echaudro@redhat.com> Signed-off-by: Simon Horman <simon.horman@corigine.com>
* Documentation: Fix use of rst verbatim code chunk syntax.Kevin Traynor2022-05-041-1/+0
| | | | | | | | | In some places it is using Markdown syntax and in others it is not needed as there is already a code block. Signed-off-by: Kevin Traynor <ktraynor@redhat.com> Reviewed-by: David Marchand <david.marchand@redhat.com> Signed-off-by: Ilya Maximets <i.maximets@ovn.org>
* docs: Note ALLOW_EXPERIMENTAL_API for tunnel offloads.Eli Britstein2022-05-041-0/+4
| | | | | | | | Tunnel offload APIs have '__rte_experimental' attribute, therefore available only if ALLOW_EXPERIMENTAL_API is defined. Documente it. Signed-off-by: Eli Britstein <elibr@nvidia.com> Signed-off-by: Ilya Maximets <i.maximets@ovn.org>
* dpdk: Support running PMD threads on any core.David Marchand2022-01-111-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Previously in OVS, a PMD thread running on cpu X used lcore X. This assumption limited OVS to run PMD threads on physical cpu < RTE_MAX_LCORE. DPDK 20.08 introduced a new API that associates a non-EAL thread to a free lcore. This new API does not change the thread characteristics (like CPU affinity) and let OVS run its PMD threads on any cpu regardless of RTE_MAX_LCORE. The DPDK multiprocess feature is not compatible with this new API and is disabled. DPDK still limits the number of lcores to RTE_MAX_LCORE (128 on x86_64) which should be enough for OVS pmd threads (hopefully). DPDK lcore/OVS pmd threads mapping are logged at threads when trying to attach a OVS PMD thread, and when detaching. A new command is added to help get DPDK point of view of the DPDK lcores at any time: $ ovs-appctl dpdk/lcore-list lcore 0, socket 0, role RTE, cpuset 0 lcore 1, socket 0, role NON_EAL, cpuset 1 lcore 2, socket 0, role NON_EAL, cpuset 15 Signed-off-by: David Marchand <david.marchand@redhat.com> Acked-by: Kevin Traynor <ktraynor@redhat.com> Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com> Signed-off-by: Ilya Maximets <i.maximets@ovn.org>
* docs/userspace-tunneling: Fix IP addresses for host2.Cian Ferriter2021-10-121-2/+10
| | | | | | | | | | | The IP addresses being recommended for the VM interface and the "remote_ip" on the tunnel port are wrong. The host1 values were being used before. Update to use the host2 values. Signed-off-by: Cian Ferriter <cian.ferriter@intel.com> Acked-by: Kevin Traynor <ktraynor@redhat.com> Acked-by: Paolo Valerio <pvalerio@redhat.com> Signed-off-by: Ilya Maximets <i.maximets@ovn.org>
* docs: Recommend the use of dpdkvhostuserclient ports.Cian Ferriter2021-09-162-15/+18
| | | | | | | | | dpdkvhostuser ports are deprecated, but are still being recommended to users through the documentation. Fix this. Signed-off-by: Cian Ferriter <cian.ferriter@intel.com> Acked-by: Kevin Traynor <ktraynor@redhat.com> Signed-off-by: Ilya Maximets <i.maximets@ovn.org>
* Documentation: Remove duplicate words.David Marchand2021-07-191-1/+1
| | | | | | | This is a simple cleanup with a script of mine. Signed-off-by: David Marchand <david.marchand@redhat.com> Signed-off-by: Ben Pfaff <blp@ovn.org>
* netdev-offload-dpdk: Support tunnel pop action.Eli Britstein2021-06-241-0/+1
| | | | | | | | | | | Support tunnel pop action. Signed-off-by: Eli Britstein <elibr@nvidia.com> Reviewed-by: Gaetan Rivet <gaetanr@nvidia.com> Acked-by: Sriharsha Basavapatna <sriharsha.basavapatna@broadcom.com> Tested-by: Emma Finn <emma.finn@intel.com> Tested-by: Marko Kovacevic <marko.kovacevic@intel.com> Signed-off-by: Ilya Maximets <i.maximets@ovn.org>
* Eliminate "whitelist" and "blacklist" terms.Ben Pfaff2020-10-162-5/+5
| | | | | | | | There is one remaining use under datapath. That change should happen upstream in Linux first according to our usual policy. Signed-off-by: Ben Pfaff <blp@ovn.org> Acked-by: Alin Gabriel Serdean <aserdean@ovn.org>
* netdev-offload-dpdk: Support offload of clone tnl_push/output actions.Eli Britstein2020-07-081-0/+1
| | | | | | | | | | | Tunnel encapsulation is done by tnl_push and output actions nested in a clone action. Support offloading of such flows with RTE_FLOW_ACTION_TYPE_RAW_ENCAP attribute. Signed-off-by: Eli Britstein <elibr@mellanox.com> Reviewed-by: Oz Shlomo <ozsh@mellanox.com> Acked-by: Sriharsha Basavapatna <sriharsha.basavapatna@broadcom.com> Signed-off-by: Ilya Maximets <i.maximets@ovn.org>
* netdev-offload-dpdk: Support offload of set IPv6 actions.Eli Britstein2020-07-081-0/+1
| | | | | | | | | Add support for set IPv6 actions. Signed-off-by: Eli Britstein <elibr@mellanox.com> Reviewed-by: Roni Bar Yanai <roniba@mellanox.com> Acked-by: Sriharsha Basavapatna <sriharsha.basavapatna@broadcom.com> Signed-off-by: Ilya Maximets <i.maximets@ovn.org>
* netdev-offload-dpdk: Add IPv6 pattern matching.Eli Britstein2020-07-081-1/+1
| | | | | | | | | Add support for IPv6 pattern matching for offloading flows. Signed-off-by: Eli Britstein <elibr@mellanox.com> Reviewed-by: Roni Bar Yanai <roniba@mellanox.com> Acked-by: Sriharsha Basavapatna <sriharsha.basavapatna@broadcom.com> Signed-off-by: Ilya Maximets <i.maximets@ovn.org>
* netdev-offload-dpdk: Support offload of VLAN PUSH/POP actions.Sriharsha Basavapatna2020-06-221-0/+1
| | | | | | | | Parse VLAN PUSH/POP OVS datapath actions and add respective RTE actions. Signed-off-by: Sriharsha Basavapatna <sriharsha.basavapatna@broadcom.com> Acked-by: Eli Britstein <elibr@mellanox.com> Signed-off-by: Ilya Maximets <i.maximets@ovn.org>
* Documentation: Fix literal blocks formatingYi-Hung Wei2020-02-132-2/+2
| | | | | | Acked-by: Flavio Leitner <fbl@sysclose.org> Signed-off-by: Yi-Hung Wei <yihung.wei@gmail.com> Signed-off-by: Ben Pfaff <blp@ovn.org>
* netdev-offload-dpdk: Support offload of set TCP/UDP ports actions.Eli Britstein2020-01-161-0/+1
| | | | | | Signed-off-by: Eli Britstein <elibr@mellanox.com> Reviewed-by: Oz Shlomo <ozsh@mellanox.com> Signed-off-by: Ilya Maximets <i.maximets@ovn.org>
* netdev-offload-dpdk: Support offload of set IPv4 actions.Eli Britstein2020-01-161-0/+1
| | | | | | Signed-off-by: Eli Britstein <elibr@mellanox.com> Reviewed-by: Oz Shlomo <ozsh@mellanox.com> Signed-off-by: Ilya Maximets <i.maximets@ovn.org>
* netdev-offload-dpdk: Support offload of set MAC actions.Eli Britstein2020-01-161-0/+1
| | | | | | Signed-off-by: Eli Britstein <elibr@mellanox.com> Reviewed-by: Oz Shlomo <ozsh@mellanox.com> Signed-off-by: Ilya Maximets <i.maximets@ovn.org>
* netdev-offload-dpdk: Support offload of drop action.Eli Britstein2020-01-161-0/+1
| | | | | | Signed-off-by: Eli Britstein <elibr@mellanox.com> Reviewed-by: Oz Shlomo <ozsh@mellanox.com> Signed-off-by: Ilya Maximets <i.maximets@ovn.org>
* netdev-offload-dpdk: Support offload of output action.Eli Britstein2020-01-161-4/+13
| | | | | | | | | Support offload of output action, also configuring count action for allowing query statistics of HW offloaded flows. Signed-off-by: Eli Britstein <elibr@mellanox.com> Reviewed-by: Oz Shlomo <ozsh@mellanox.com> Signed-off-by: Ilya Maximets <i.maximets@ovn.org>
* docs: DPDK isn't a datapath, so don't use the term.Ben Pfaff2019-10-232-7/+8
| | | | | | | | | The DPDK library allows OVS fast access to packet I/O in userspace. It is not a datapath. This commit avoids using that term. Suggested-by: Ilya Maximets <i.maximets@ovn.org> Acked-by: Ilya Maximets <i.maximets@ovn.org> Signed-off-by: Ben Pfaff <blp@ovn.org>
* userspace-tunnelling.rst: Fix a typo in the userspace tunnel guideLiu Chang2019-09-301-1/+1
| | | | | | | This commit fixes potential unintended mistake in userspace-tunneling guide: for the example in userspace-tunneling guide, there is no bridge named "br-eth1", but only a bridge name "br-phy" which has a port named "eth1" Signed-off-by: Liu Chang <liuchang@cmss.chinamobile.com> Signed-off-by: Ben Pfaff <blp@ovn.org>
* Remove OVN.Mark Michelson2019-09-064-577/+0
| | | | | | | | | | | | | | | | OVN is separated into its own repo. This commit removes the OVN source, OVN tests, and OVN documentation. It also removes mentions of OVN from most documentation. The only place where OVN has been left is in changelogs/NEWS, since we shouldn't mess with the history of the project. There is an exception here. The ovsdb-cluster tests rely on ovn-nbctl and ovn-sbctl to run. Therefore those ovn utilities, as well as their dependencies remain in the repo with this commit. Acked-by: Numan Siddique <nusiddiq@redhat.com> Signed-off-by: Mark Michelson <mmichels@redhat.com> Signed-off-by: Ben Pfaff <blp@ovn.org>
* sflow, ovn: Typofix: trafic -> trafficKlemens Nanni2019-05-231-3/+3
| | | | | | | | Spotted http://docs.openvswitch.org/en/latest/howto/sflow/, grepping the tree found another instance in ovn. Signed-off-by: Klemens Nanni <klemens@posteo.de> Signed-off-by: Ben Pfaff <blp@ovn.org>
* docs: Fix table title for VM MQ config in dpdk howto.Cian Ferriter2019-01-101-1/+1
| | | | | | | | | | Found this when searching "BIOS Settings" for use with DPDK. CC: Stephen Finucane <stephen@that.guru> Fixes: c50938a24031 ("doc: Convert INSTALL.DPDK-ADVANCED to rST") Signed-off-by: Cian Ferriter <cian.ferriter@intel.com> Acked-by: Stephen Finucane <stephen@that.guru> Signed-off-by: Ian Stokes <ian.stokes@intel.com>
* Documentation: IPsec tunnel tutorial and documentation.Qiuyu Xiao2018-11-092-0/+195
| | | | | | | | | | | | | tutorials/index.rst gives a step-by-setp guide to set up OVS IPsec tunnel. tutorials/ipsec.rst gives detailed explanation on the IPsec tunnel configuration methods and forwarding modes. Signed-off-by: Qiuyu Xiao <qiuyu.xiao.qyx@gmail.com> Signed-off-by: Ansis Atteka <aatteka@ovn.org> Co-authored-by: Ansis Atteka <aatteka@ovn.org> Signed-off-by: Ben Pfaff <blp@ovn.org>
* Docs: Improve OVS DPDK version mapping notice.Ian Stokes2018-07-241-2/+4
| | | | | | | | | | | | | A common issue is users pairing the incorrect version of OVS to DPDK when working outside of the build tree. To avoid this, this commit updates the OVS DPDK documentation to explicitly flag that users should consult the OVS to DPDK release mapping in FAQ if working outside of the OVS build tree. Suggested-by: Ben Pfaff <blp@ovn.org> Signed-off-by: Ian Stokes <ian.stokes@intel.com> Acked-by: Flavio Leitner <fbl@sysclose.org>
* Documentation: document ovs-dpdk flow offloadYuanhan Liu2018-07-061-0/+22
| | | | | | | | | | | | Add details in the DPDK howto guide on the way to enable the offload along with the supported NICs and flow types. The flow offload is marked as experimental. Signed-off-by: Yuanhan Liu <yliu@fridaylinux.org> Co-authored-by: Shahaf Shuler <shahafs@mellanox.com> Signed-off-by: Shahaf Shuler <shahafs@mellanox.com> Signed-off-by: Ian Stokes <ian.stokes@intel.com>
* doc: Add "jumbo frames" topic documentStephen Finucane2018-04-211-49/+3
| | | | | | | We include references from the physical and vhost-user interface guides. Signed-off-by: Stephen Finucane <stephen@that.guru> Signed-off-by: Ian Stokes <ian.stokes@intel.com>
* doc: Move "pdump" guide to its own documentStephen Finucane2018-04-211-39/+0
| | | | | | | | Yet another section that's far too detailed for someone getting started with DPDK in OVS. Split it out. Signed-off-by: Stephen Finucane <stephen@that.guru> Signed-off-by: Ian Stokes <ian.stokes@intel.com>
* doc: Add "bridge" topic documentStephen Finucane2018-04-211-60/+0
| | | | | | | | This details configuration steps that apply to the entire bridge, rather than individual ports. Signed-off-by: Stephen Finucane <stephen@that.guru> Signed-off-by: Ian Stokes <ian.stokes@intel.com>
* doc: Move "QoS" guide to its own documentStephen Finucane2018-04-211-42/+0
| | | | | | | Again, this stuff is too detailed for a high-level howto. Signed-off-by: Stephen Finucane <stephen@that.guru> Signed-off-by: Ian Stokes <ian.stokes@intel.com>
* doc: Add "vdev" topic documentStephen Finucane2018-04-211-29/+0
| | | | | | | | | These are separate things from physical, ring and vhost-user interfaces and deserve their own documents. A couple of small typos are fixed along the way. Signed-off-by: Stephen Finucane <stephen@that.guru> Signed-off-by: Ian Stokes <ian.stokes@intel.com>
* doc: Move additional sections to "physical ports" docStephen Finucane2018-04-211-86/+17
| | | | | | | | | | The "hotplugging", "flow control", and "Rx checksum offload" sections only apply to 'dpdk' ports and are too detailed to include in a high-level howto. Move them, reworking some aspects of this in the process. Signed-off-by: Stephen Finucane <stephen@that.guru> Signed-off-by: Ian Stokes <ian.stokes@intel.com>
* doc: Add "PMD" topic documentStephen Finucane2018-04-211-86/+0
| | | | | | | | | | This continues the breakup of the huge DPDK "howto" into smaller components. There are a couple of related changes included, such as using "Rx queue" instead of "rxq" and noting how Tx queues cannot be configured. Signed-off-by: Stephen Finucane <stephen@that.guru> Signed-off-by: Ian Stokes <ian.stokes@intel.com>
* docs: Fix sflow documentation url and markup.Ian Stokes2018-04-211-3/+6
| | | | | | | | | | | | The link url link for the blog in sflow documentation causes make check-docs to fail with a broken link warning. Fix this by correcting the url address. Also use correct markup for note regarding the configuration of sflow. CC: Stephen Finucane <stephen@that.guru> Fixes: 198c5d3d0 ("doc: Add sFlow cookbook from website") Signed-off-by: Ian Stokes <ian.stokes@intel.com> Acked-by: Stephen Finucane <stephen@that.guru>
* netdev-dpdk: fix MAC address in port addr exampleMarcelo Ricardo Leitner2018-04-211-2/+2
| | | | | | | | | | | | | | The MAC address is always 6-bytes long, never 7. The extra :01 and :02 doesn't belong in there as it doesn't mean selecting one port or another. Instead, use an incrementing MAC address, which is what usually happens on such cards. See-also: http://www.dpdk.org/ml/archives/dev/2018-April/094976.html Fixes: 5e7588186839 ("netdev-dpdk: fix port addition for ports sharing same PCI id") Signed-off-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> Signed-off-by: Ian Stokes <ian.stokes@intel.com>
* Clean up some minor spelling and typos.Justin Pettit2018-03-145-12/+12
| | | | | Signed-off-by: Justin Pettit <jpettit@ovn.org> Acked-by: Ben Pfaff <blp@ovn.org>
* netdev-dpdk: fix port addition for ports sharing same PCI idYuanhan Liu2018-01-261-0/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Some NICs have only one PCI address associated with multiple ports. This patch extends the dpdk-devargs option's format to cater for such devices. To achieve that, this patch uses a new syntax that will be adapted and implemented in future DPDK release (likely, v18.05): http://dpdk.org/ml/archives/dev/2017-December/084234.html And since it's the DPDK duty to parse the (complete and full) syntax and this patch is more likely to serve as an intermediate workaround, here I take a simpler and shorter syntax from it (note it's allowed to have only one category being provided): class=eth,mac=00:11:22:33:44:55:66 Also, old compatibility is kept. Users can still go on with using the PCI id to add a port (if that's enough for them). Meaning, this patch will not break anything. This patch is basically based on the one from Ciara: https://mail.openvswitch.org/pipermail/ovs-dev/2017-October/339496.html Cc: Loftus Ciara <ciara.loftus@intel.com> Cc: Thomas Monjalon <thomas@monjalon.net> Cc: Kevin Traynor <ktraynor@redhat.com> Signed-off-by: Yuanhan Liu <yliu@fridaylinux.org> Signed-off-by: Ian Stokes <ian.stokes@intel.com>
* dpif-netdev: Add percentage of pmd/core used by each rxq.Kevin Traynor2018-01-171-0/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | It is based on the length of history that is stored about an rxq (currently 1 min). $ ovs-appctl dpif-netdev/pmd-rxq-show pmd thread numa_id 0 core_id 4: isolated : false port: dpdkphy1 queue-id: 0 pmd usage: 70 % port: dpdkvhost0 queue-id: 0 pmd usage: 0 % pmd thread numa_id 0 core_id 6: isolated : false port: dpdkphy0 queue-id: 0 pmd usage: 64 % port: dpdkvhost1 queue-id: 0 pmd usage: 0 % These values are what would be used as part of rxq to pmd assignment due to a reconfiguration event e.g. adding pmds, adding rxqs or with the command: ovs-appctl dpif-netdev/pmd-rxq-rebalance Signed-off-by: Jan Scheurich <jan.scheurich@ericsson.com> Co-authored-by: Jan Scheurich <jan.scheurich@ericsson.com> Signed-off-by: Kevin Traynor <ktraynor@redhat.com> Signed-off-by: Ian Stokes <ian.stokes@intel.com>
* netdev: Custom statistics.Michal Weglicki2018-01-101-5/+10
| | | | | | | | | | | | | | | | | | | | | - New get_custom_stats interface function is added to netdev. It allows particular netdev implementation to expose custom counters in dictionary format (counter name/counter value). - New statistics are retrieved using experimenter code and are printed as a result to ofctl dump-ports. - New counters are available for OpenFlow 1.4+. - New statistics are printed to output via ofctl only if those are present in reply message. - New statistics definition is added to include/openflow/intel-ext.h. - Custom statistics are implemented only for dpdk-physical port type. - DPDK-physical implementation uses xstats to collect statistics. Only dropped and error counters are exposed. Co-authored-by: Ben Pfaff <blp@ovn.org> Signed-off-by: Ben Pfaff <blp@ovn.org> Signed-off-by: Michal Weglicki <michalx.weglicki@intel.com> Signed-off-by: Ben Pfaff <blp@ovn.org>
* docs: Fix table view for VM config in dpdk howto.Ilya Maximets2017-12-201-10/+12
| | | | | | | | | | | | | | | In current version table contains only one row with all the values together. This is not readable. 'Simple table' format should work for this case. Additionally, some words capitalized to look better and be conform with other tables in the file. CC: Stephen Finucane <stephen@that.guru> Fixes: 167703d664fc ("doc: Convert INSTALL.DPDK to rST") Signed-off-by: Ilya Maximets <i.maximets@samsung.com> Acked-by: Stephen Finucane <stephen@that.guru> Signed-off-by: Ian Stokes <ian.stokes@intel.com>
* sflow: Correctly document setup command.Ben Pfaff2017-12-041-1/+1
| | | | | | Reported-by: Shivaram Mysore <shivaram.mysore@gmail.com> Signed-off-by: Ben Pfaff <blp@ovn.org> Reviewed-by: Greg Rose <gvrose8192@gmail.com>
* OVN: Document how to use firewalld service filesMark Michelson2017-10-242-0/+108
| | | | | | | | | Firewalld service files for OVN have been in the source for several months. This adds instructions for how to use these service files with firewalld. Signed-off-by: Mark Michelson <mmichels@redhat.com> Signed-off-by: Ben Pfaff <blp@ovn.org>
* Fix a typo in the controller name in the howtoIman Tabrizian2017-10-021-1/+1
| | | | | | | | | This commit fixes potential unintended mistake in howto guide of userspace tunneling. Submitted-at: https://github.com/openvswitch/ovs/pull/209 Signed-off-by: Iman Tabrizian <tabrizian@outlook.com> Signed-off-by: Russell Bryant <russell@ovn.org>
* selinux.rst: point to the correct fileAaron Conole2017-09-011-1/+1
| | | | | | | | | | | | | | | | | | The selinux documentation mentions to check the selinux/openvswitch.te file for any permissions that might need to be added. However, the commit 7bc1aae71e89 ("rhel: make the selinux policy intermediate") moved this file to be generated from intermediate file selinux/openvswitch.te.in instead. Correct the documentation, so that users won't be trying to edit a generated file. Also, add a gitignore for the autogenerated file. Fixes: 7bc1aae71e89 ("rhel: make the selinux policy intermediate") Reported-by: Ansis Atteka <aatteka@ovn.org> Signed-off-by: Aaron Conole <aconole@redhat.com> Acked-by: Ansis Atteka <aatteka@ovn.org>
* dpif-netdev: Add ovs-appctl dpif-netdev/pmd-rxq-rebalance.Kevin Traynor2017-08-251-1/+4
| | | | | | | | | | | | | | | Rxqs consumed processing cycles are used to improve the balance of how rxqs are assigned to pmds. Currently some reconfiguration is needed to perform a reassignment. Add an ovs-appctl command to perform a new assignment in order to balance based on the latest rxq processing cycle information. Note: Jan requested this for testing purposes. Suggested-by: Jan Scheurich <jan.scheurich@ericsson.com> Signed-off-by: Kevin Traynor <ktraynor@redhat.com> Signed-off-by: Darrell Ball <dlu998@gmail.com>
* dpif-netdev: Change pmd selection order.Kevin Traynor2017-08-251-0/+16
| | | | | | | | | | | | | | | | | | Up to his point rxqs are sorted by processing cycles they consumed and assigned to pmds in a round robin manner. Ian pointed out that on wrap around the most loaded pmd will be the next one to be assigned an additional rxq and that it would be better to reverse the pmd order when wraparound occurs. In other words, change from assigning by rr to assigning in a forward and reverse cycle through pmds. Also, now that the algorithm has finalized, document an example. Suggested-by: Ian Stokes <ian.stokes@intel.com> Signed-off-by: Kevin Traynor <ktraynor@redhat.com> Signed-off-by: Darrell Ball <dlu998@gmail.com>
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