[ovs-dev] [PATCH V7 00/18] netdev datapath actions offload

[Eli Britstein]

Currently, netdev datapath offload only accelerates the flow match
sequence by associating a mark per flow. This series introduces the full
offload of netdev datapath flows by having the HW also perform the flow
actions.

This series adds HW offload for output, drop, set MAC, set IPv4 and set
TCP/UDP ports actions using the DPDK rte_flow API.

v1 Travis passed: https://travis-ci.org/elibritstein/OVS/builds/614511472
v2 Travis passed: https://travis-ci.org/elibritstein/OVS/builds/619262148
v3 Travis passed: https://travis-ci.org/elibritstein/OVS/builds/622253870
v4 Travis passed: https://travis-ci.org/elibritstein/OVS/builds/625654160
v5 Travis passed: https://travis-ci.org/elibritstein/OVS/builds/626692202
v6 Travis passed: https://travis-ci.org/elibritstein/OVS/builds/627132194
v7 Travis passed: https://travis-ci.org/elibritstein/OVS/builds/634603553

v1-v2:
- fallback to mark/rss in case of any failure of action offload.
- dp_layer changed to "in_hw" in case the flow is offloaded.
- using netdev_ports_get instead of dp_netdev_lookup_port in stats reading.
- using flow_dump_next API instead of a new API.
- validity checks for last action of output and clone.
- count action should be done for drop as well.
- validity check for output action.
- added doc in Documentation/howto/dpdk.rst.
v2-v3:
- removed refactoring for netdev-offload-dpdk-flow.c file.
- dropped flush commits.
- dbg prints rate-limited, and outside lock.
- added validity check for output action - same flow_api handle for both netdevs.
- added a mutex to protect possible concurrent deletion/querying of a flow.
- statistics are collected using flow_get API.
- added more documentation in Documentation/howto/dpdk.rst.
v3-v4:
- debug prints moved to netdev-offload-dpdk.c.
- flow get returns full stats, not diff.
- removed additional fields from offload_info and dp_netdev_flow.
- read HW stats during dpif_netdev_flow_get as well as
  dpif_netdev_flow_dump_next.
- moved actions offload framework just before support commit.
- fixed memory leak in rewrite code.
- dropped clone commit - will be posted in next series.
v4-v5:
- statistics collecting changed to populate dp_layer and offloaded
  attributes. dp_layer changed to "dpdk" for fully offloaded by dpdk.
- display offloaded:partial for partially offloaded flows.
- support filter types "dpdk" and "partially-offloaded" in
  dpctl/dump-flows type=X.
- simplify code readability of rewrite commits.
v5-v6:
- debug prints improvement for partial offload installations. dbg prints
  for failed actions, warn for other failure.
- fixed memory leak in case retrieved dpdk port-id is invalid.
v6-v7:
- rebase to support explicit drop action.
- fix dpctl/dump-flows issues discovered by make check-offloads.

Eli Britstein (17):
  netdev-offload-dpdk: Refactor flow patterns
  netdev-offload-dpdk: Refactor action items freeing scheme
  netdev-offload-dpdk: Dynamically allocate pattern items
  netdev-offload-dpdk: Improve HW offload flow debuggability
  netdev-dpdk: Introduce rte flow query function
  netdev-offload-dpdk: Return UFID-rte_flow entry in find method
  netdev-offload-dpdk: Framework for actions offload
  netdev-offload-dpdk: Implement flow get method
  dpctl: Support dump-flows filters "dpdk" and "partially-offloaded"
  dpif-netdev: Populate dpif class field in offload struct
  netdev-dpdk: Getter function for dpdk port id API
  netdev-offload: Introduce a function to validate same flow api handle
  netdev-offload-dpdk: Support offload of output action
  netdev-offload-dpdk: Support offload of drop action
  netdev-offload-dpdk: Support offload of set MAC actions
  netdev-offload-dpdk: Support offload of set IPv4 actions
  netdev-offload-dpdk: Support offload of set TCP/UDP ports actions

Ophir Munk (1):
  dpif-netdev: Update offloaded flows statistics

 Documentation/howto/dpdk.rst  |  21 +-
 NEWS                          |   5 +
 lib/dpctl.c                   |  28 +-
 lib/dpctl.man                 |   2 +
 lib/dpif-netdev.c             |  81 +++-
 lib/netdev-dpdk.c             |  48 +++
 lib/netdev-dpdk.h             |   8 +
 lib/netdev-offload-dpdk.c     | 967 ++++++++++++++++++++++++++++++++----------
 lib/netdev-offload-provider.h |   1 +
 lib/netdev-offload.c          |  12 +
 10 files changed, 927 insertions(+), 246 deletions(-)

-- 
2.14.5