This patch series adds flow steering support to the Google Virtual Ethernet (gve) driver. This functionality allows traffic to be directed to specific receive queues based on user-specified flow patterns.
The series includes foundational support for extended admin queue commands needed to handle flow rules, the specific adminqueue commands for flow rule management, and the integration with the DPDK rte_flow API. The series adds support flow matching on the following protocols: IPv4, IPv6, TCP, UDP, SCTP, ESP, and AH. Patch Overview: 1. "net/gve: add flow steering device option" checks for and enables the flow steering capability in the device options during initialization. 2. "net/gve: introduce extended adminq command" adds infrastructure for sending extended admin queue commands. These commands use a flexible buffer descriptor format required for flow rule management. 3. "net/gve: add adminq commands for flow steering" implements the specific admin queue commands to add and remove flow rules on the device, including handling of rule IDs and parameters. 4. "net/gve: add rte flow API integration" exposes the flow steering functionality via the DPDK rte_flow API. This includes strict pattern validation, rule parsing, and lifecycle management (create, destroy, flush). It ensures thread-safe access to the flow subsystem and proper resource cleanup during device reset. Jasper Tran O'Leary (2): net/gve: add adminq commands for flow steering net/gve: add rte flow API integration Vee Agarwal (2): net/gve: add flow steering device option net/gve: introduce extended adminq command doc/guides/nics/features/gve.ini | 12 + doc/guides/nics/gve.rst | 20 + doc/guides/rel_notes/release_26_03.rst | 1 + drivers/net/gve/base/gve.h | 3 +- drivers/net/gve/base/gve_adminq.c | 118 ++++- drivers/net/gve/base/gve_adminq.h | 57 +++ drivers/net/gve/gve_ethdev.c | 87 +++- drivers/net/gve/gve_ethdev.h | 46 ++ drivers/net/gve/gve_flow_rule.c | 645 +++++++++++++++++++++++++ drivers/net/gve/gve_flow_rule.h | 64 +++ drivers/net/gve/meson.build | 1 + 11 files changed, 1049 insertions(+), 5 deletions(-) create mode 100644 dpdk/drivers/net/gve/gve_flow_rule.c create mode 100644 dpdk/drivers/net/gve/gve_flow_rule.h -- 2.53.0.473.g4a7958ca14-goog
