kernel_optimize_test/net/openvswitch
Joe Stringer 74ed7ab926 openvswitch: Add support for unique flow IDs.
Previously, flows were manipulated by userspace specifying a full,
unmasked flow key. This adds significant burden onto flow
serialization/deserialization, particularly when dumping flows.

This patch adds an alternative way to refer to flows using a
variable-length "unique flow identifier" (UFID). At flow setup time,
userspace may specify a UFID for a flow, which is stored with the flow
and inserted into a separate table for lookup, in addition to the
standard flow table. Flows created using a UFID must be fetched or
deleted using the UFID.

All flow dump operations may now be made more terse with OVS_UFID_F_*
flags. For example, the OVS_UFID_F_OMIT_KEY flag allows responses to
omit the flow key from a datapath operation if the flow has a
corresponding UFID. This significantly reduces the time spent assembling
and transacting netlink messages. With all OVS_UFID_F_OMIT_* flags
enabled, the datapath only returns the UFID and statistics for each flow
during flow dump, increasing ovs-vswitchd revalidator performance by 40%
or more.

Signed-off-by: Joe Stringer <joestringer@nicira.com>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-26 15:45:50 -08:00
..
actions.c net: rename vlan_tx_* helpers since "tx" is misleading there 2015-01-13 17:51:08 -05:00
datapath.c openvswitch: Add support for unique flow IDs. 2015-01-26 15:45:50 -08:00
datapath.h openvswitch: Add support for OVS_FLOW_ATTR_PROBE. 2014-11-09 18:58:44 -08:00
dp_notify.c genetlink: make multicast groups const, prevent abuse 2013-11-19 16:39:06 -05:00
flow_netlink.c openvswitch: Add support for unique flow IDs. 2015-01-26 15:45:50 -08:00
flow_netlink.h openvswitch: Add support for unique flow IDs. 2015-01-26 15:45:50 -08:00
flow_table.c openvswitch: Add support for unique flow IDs. 2015-01-26 15:45:50 -08:00
flow_table.h openvswitch: Add support for unique flow IDs. 2015-01-26 15:45:50 -08:00
flow.c openvswitch: Rename GENEVE_TUN_OPTS() to TUN_METADATA_OPTS() 2015-01-15 01:11:41 -05:00
flow.h openvswitch: Add support for unique flow IDs. 2015-01-26 15:45:50 -08:00
Kconfig openvswitch: Fix build failure. 2014-11-14 01:24:27 -05:00
Makefile ovs: Turn vports with dependencies into separate modules 2014-10-28 14:43:18 -04:00
vport-geneve.c openvswitch: Support VXLAN Group Policy extension 2015-01-15 01:11:41 -05:00
vport-gre.c openvswitch: Introduce ovs_tunnel_route_lookup 2015-01-14 16:32:06 -05:00
vport-internal_dev.c openvswitch: Drop packets when interdev is not up 2014-11-05 23:52:35 -08:00
vport-internal_dev.h openvswitch: introduce rtnl ops stub 2014-07-01 14:40:17 -07:00
vport-netdev.c openvswitch: Constify various function arguments 2014-11-09 18:58:44 -08:00
vport-netdev.h ovs: Turn vports with dependencies into separate modules 2014-10-28 14:43:18 -04:00
vport-vxlan.c vxlan: Eliminate dependency on UDP socket in transmit path 2015-01-24 23:15:40 -08:00
vport-vxlan.h openvswitch: Support VXLAN Group Policy extension 2015-01-15 01:11:41 -05:00
vport.c openvswitch: Introduce ovs_tunnel_route_lookup 2015-01-14 16:32:06 -05:00
vport.h openvswitch: Introduce ovs_tunnel_route_lookup 2015-01-14 16:32:06 -05:00