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-jiaw...@nvidia.com/ v7: * Remove the -ENOTSUP return value since no need anymore. * Use the rte_eth_dev as argument in the internal function. 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 | 37 +++++++++ lib/ethdev/ethdev_trace.h | 17 ++++ lib/ethdev/ethdev_trace_points.c | 6 ++ lib/ethdev/rte_ethdev.c | 72 ++++++++++++++++ lib/ethdev/rte_ethdev.h | 49 +++++++++++ lib/ethdev/rte_flow.c | 1 + lib/ethdev/rte_flow.h | 35 ++++++++ lib/ethdev/version.map | 2 + 13 files changed, 373 insertions(+) -- 2.18.1
