This series adds support for switch flow rules, that is, rte_flow rules applied to mlx5 devices at the switch level.
It allows applications to offload traffic redirection between DPDK ports in hardware, while optionally modifying it (e.g. performing encap/decap). For this to work, involved DPDK ports must be part of the same switch domain, as is the case with port representors, and the transfer attribute must be requested on flow rules. Also since the mlx5 switch is controlled through Netlink instead of Verbs, and given how tedious formatting Netlink messages is, a new dependency is added to mlx5: libmnl. See relevant patch. v2 changes: - Mostly compilation fixes for missing Netlink definitions on older systems. - Reduced stack consumption. - Adapted series to rely on mlx5_dev_to_port_id() instead of mlx5_dev_to_domain_id(). - See relevant patches for more information. Adrien Mazarguil (6): net/mlx5: lay groundwork for switch offloads net/mlx5: add framework for switch flow rules net/mlx5: add fate actions to switch flow rules net/mlx5: add L2-L4 pattern items to switch flow rules net/mlx5: add VLAN item and actions to switch flow rules net/mlx5: add port ID pattern item to switch flow rules drivers/net/mlx5/Makefile | 142 ++++ drivers/net/mlx5/mlx5.c | 32 + drivers/net/mlx5/mlx5.h | 28 + drivers/net/mlx5/mlx5_flow.c | 111 +++ drivers/net/mlx5/mlx5_nl_flow.c | 1247 ++++++++++++++++++++++++++++++++++ mk/rte.app.mk | 2 +- 6 files changed, 1561 insertions(+), 1 deletion(-) create mode 100644 drivers/net/mlx5/mlx5_nl_flow.c -- 2.11.0
