This series extends the openvswitch datapath interface for flow commands to use 128-bit unique identifiers as an alternative to the netlink-formatted flow key. This significantly reduces the cost of assembling messages between the kernel and userspace, in particular improving Open vSwitch revalidation performance by 40% or more.
v14: - Perform lookup using unmasked key in legacy case. - Fix minor checkpatch.pl style violations. v13: - Embed sw_flow_id in sw_flow to save memory allocation in UFID case. - Malloc unmasked key for id in non-UFID case. - Fix bug where non-UFID case could double-serialize keys. v12: - Userspace patches fully merged into Open vSwitch master - New minor refactor patches (2,3,4) - Merge unmasked_key, ufid representation of flow identifier in sw_flow - Improve memory allocation sizes when serializing ufid - Handle corner case where a flow_new is requested with a flow that has an identical ufid as an existing flow, but a different flow key - Limit UFID to between 1-16 octets inclusive. - Add various helper functions to improve readibility v11: - Pushed most of the prerequisite patches for this series to OVS master. - Split out openvswitch.h interface changes from datapath implementation - Datapath implementation to be reviewed on net-next, separately v10: - New patch allowing datapath to serialize masked keys - Simplify datapath interface by accepting UFID or flow_key, but not both - Flows set up with UFID must be queried/deleted using UFID - Reduce sw_flow memory usage for UFID - Don't periodically rehash UFID table in linux datapath - Remove kernel_only UFID in linux datapath v9: - No kernel changes v8: - Rename UID -> UFID - Fix null dereference in datapath when paired with older userspace - All patches are reviewed/acked except datapath changes. v7: - Remove OVS_DP_F_INDEX_BY_UID - Rework datapath UID serialization for variable length UIDs v6: - Reduce netlink conversions for all datapaths - Various bugfixes v5: - Various bugfixes - Improve logging v4: - Datapath memory leak fixes - Enable UID-based terse dumping and deleting by default - Various fixes RFCv3: - Add datapath implementation Joe Stringer (5): openvswitch: Refactor ovs_nla_fill_match(). openvswitch: Refactor ovs_flow_tbl_insert(). openvswitch: Use sw_flow_key_range for key ranges. genetlink: Add genlmsg_parse() helper function. openvswitch: Add support for unique flow IDs. Documentation/networking/openvswitch.txt | 13 ++ include/net/genetlink.h | 17 +++ include/uapi/linux/openvswitch.h | 20 +++ net/openvswitch/datapath.c | 226 ++++++++++++++++++++---------- net/openvswitch/flow.h | 28 +++- net/openvswitch/flow_netlink.c | 102 +++++++++++++- net/openvswitch/flow_netlink.h | 13 +- net/openvswitch/flow_table.c | 226 +++++++++++++++++++++++------- net/openvswitch/flow_table.h | 8 +- 9 files changed, 519 insertions(+), 134 deletions(-) -- 1.7.10.4 _______________________________________________ dev mailing list dev@openvswitch.org http://openvswitch.org/mailman/listinfo/dev
