[ovs-build] Failed: joestringer/openvswitch#348 (dev/dp_bp_20170720 - 220f4d6)
builds at travis-ci.org
Fri Jul 21 00:50:01 UTC 2017
Build Update for joestringer/openvswitch
Duration: 34 minutes and 55 seconds
Commit: 220f4d6 (dev/dp_bp_20170720)
Author: Jakub Kicinski
Message: compat: net: store port/representator id in metadata_dst.
Author: Jakub Kicinski <jakub.kicinski at netronome.com>
Date: Fri Jun 23 22:11:58 2017 +0200
net: store port/representator id in metadata_dst
Switches and modern SR-IOV enabled NICs may multiplex traffic from Port
representators and control messages over single set of hardware queues.
Control messages and muxed traffic may need ordered delivery.
Those requirements make it hard to comfortably use TC infrastructure today
unless we have a way of attaching metadata to skbs at the upper device.
Because single set of queues is used for many netdevs stopping TC/sched
queues of all of them reliably is impossible and lower device has to
retreat to returning NETDEV_TX_BUSY and usually has to take extra locks on
This patch attempts to enable port/representative devs to attach metadata
to skbs which carry port id. This way representatives can be queueless and
all queuing can be performed at the lower netdev in the usual way.
Traffic arriving on the port/representative interfaces will be have
metadata attached and will subsequently be queued to the lower device for
transmission. The lower device should recognize the metadata and translate
it to HW specific format which is most likely either a special header
inserted before the network headers or descriptor/metadata fields.
Metadata is associated with the lower device by storing the netdev pointer
along with port id so that if TC decides to redirect or mirror the new
netdev will not try to interpret it.
This is mostly for SR-IOV devices since switches don't have lower netdevs
Signed-off-by: Jakub Kicinski <jakub.kicinski at netronome.com>
Signed-off-by: Sridhar Samudrala <sridhar.samudrala at intel.com>
Signed-off-by: Simon Horman <horms at verge.net.au>
Signed-off-by: David S. Miller <davem at davemloft.net>
Upstream: 3fcece12bc1b ("net: store port/representator id in metadata_dst")
Signed-off-by: Joe Stringer <joe at ovn.org>
View the changeset: https://github.com/joestringer/openvswitch/compare/40b0fbd3c627^...220f4d6a5ceb
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