[PATCH v6 0/2] Add Tx queue mapping of aggregated ports

[Jiawei Wang]

When multiple ports are aggregated into a single DPDK port,
(example: Linux bonding, DPDK bonding, failsafe, etc.),
we want to know which port is used for Rx and Tx.

This patch introduces the new ethdev API
rte_eth_dev_map_aggr_tx_affinity(), it's used to map a Tx queue
with an aggregated port of the DPDK port (specified with port_id),
The affinity is the number of the aggregated port.
Value 0 means no affinity and traffic could be routed to any
aggregated port, this is the default current behavior.

The maximum number of affinity is given by rte_eth_dev_count_aggr_ports().

This patch allows to map a Rx queue with an aggregated port by using
a flow rule. The new item is called RTE_FLOW_ITEM_TYPE_AGGR_AFFINITY.

While uses the aggregated affinity as a matching item in the flow rule,
and sets the same affinity value by call
rte_eth_dev_map_aggr_tx_affinity(), then the packet can be sent from
the same port as the receiving one.
The affinity numbering starts from 1, then trying to match on
aggr_affinity 0 will result in an error.

RFC: http://patches.dpdk.org/project/dpdk/cover/20221221102934.13822-1-jiaweiw@nvidia.com/

v6:
* Update the commit titles.
* Return 0 by default if dev_ops.count_aggr_ports is not defined.
* Adds the dev_configure and affinity value checking before call map_aggr_tx_affinity.
* Update the rte_eth_dev_count_aggr_ports description.

v5:
* Adds rte_eth_dev_map_aggr_tx_affinity() to map a Tx queue to an aggregated port.
* Adds rte_eth_dev_count_aggr_ports() to get the number of aggregated ports.
* Updates the flow item RTE_FLOW_ITEM_TYPE_AGGR_AFFINITY.

v4:
* Rebase the latest code
* Update new field description
* Update release release note
* Reword the commit log to make clear

v3:
* Update exception rule
* Update the commit log
* Add the description for PHY affinity and numbering definition
* Add the number of physical ports into device info
* Change the patch order 

v2: Update based on the comments

Jiawei Wang (2):
  ethdev: add Tx queue mapping of aggregated ports
  ethdev: add flow matching of aggregated port

 app/test-pmd/cmdline.c                      | 92 +++++++++++++++++++++
 app/test-pmd/cmdline_flow.c                 | 28 +++++++
 doc/guides/prog_guide/rte_flow.rst          |  8 ++
 doc/guides/rel_notes/release_23_03.rst      |  8 ++
 doc/guides/testpmd_app_ug/testpmd_funcs.rst | 18 ++++
 lib/ethdev/ethdev_driver.h                  | 39 +++++++++
 lib/ethdev/ethdev_trace.h                   | 17 ++++
 lib/ethdev/ethdev_trace_points.c            |  6 ++
 lib/ethdev/rte_ethdev.c                     | 72 ++++++++++++++++
 lib/ethdev/rte_ethdev.h                     | 50 +++++++++++
 lib/ethdev/rte_flow.c                       |  1 +
 lib/ethdev/rte_flow.h                       | 35 ++++++++
 lib/ethdev/version.map                      |  2 +
 13 files changed, 376 insertions(+)

-- 
2.18.1