Dariusz Sosnowski 9fa7c1cddb net/mlx5: create control flow rules with HWS
This patch adds the creation of control flow rules required to receive
default traffic (based on port configuration) with HWS.

Control flow rules are created on port start and destroyed on port stop.
Handling of destroying these rules was already implemented before that
patch.

Control flow rules are created if and only if flow isolation mode is
disabled and the creation process goes as follows:

- Port configuration is collected into a set of flags. Each flag
  corresponds to a certain Ethernet pattern type, defined by
  mlx5_flow_ctrl_rx_eth_pattern_type enumeration. There is a separate
  flag for VLAN filtering.

- For each possible Ethernet pattern type and:
  - For each possible RSS action configuration:
    - If configuration flags do not match this combination, it is
      omitted.
    - A template table is created using this combination of pattern
      and actions template (templates are fetched from hw_ctrl_rx
      struct stored in the port's private data).
    - Flow rules are created in this table.

Signed-off-by: Dariusz Sosnowski <dsosnowski@nvidia.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo@nvidia.com>
2022-10-26 13:33:43 +02:00
..