mlx5dv_create_flow - creates a steering flow rule
#include <infiniband/mlx5dv.h> struct ibv_flow * mlx5dv_create_flow(struct mlx5dv_flow_matcher *flow_matcher, struct mlx5dv_flow_match_parameters *match_value, size_t num_actions, struct mlx5dv_flow_action_attr actions_attr[])
mlx5dv_create_flow() creates a steering flow rule with the ability to specify specific driver properties.
Please see mlx5dv_create_flow_matcher(3) for flow_matcher and match_value.
num_actions : Specifies how many actions are passed in actions_attr
struct mlx5dv_flow_action_attr { enum mlx5dv_flow_action_type type; union { struct ibv_qp *qp; struct ibv_counters *counter; struct ibv_flow_action *action; uint32_t tag_value; struct mlx5dv_devx_obj *obj; }; };
type : MLX5DV_FLOW_ACTION_DEST_IBV_QP The QP passed will receive the matched packets. MLX5DV_FLOW_ACTION_IBV_FLOW_ACTION The flow action to be applied. MLX5DV_FLOW_ACTION_TAG Flow tag to be provided in work completion. MLX5DV_FLOW_ACTION_DEST_DEVX The DEVX destination object for the matched packets. MLX5DV_FLOW_ACTION_COUNTERS_DEVX The DEVX counter object for the matched packets. MLX5DV_FLOW_ACTION_DEFAULT_MISS Steer the packet to the default miss destination. MLX5DV_FLOW_ACTION_DROP Action is dropping the matched packet.
qp : QP passed, to be used with type MLX5DV_FLOW_ACTION_DEST_IBV_QP.
action : Flow action, to be used with type MLX5DV_FLOW_ACTION_IBV_FLOW_ACTION see mlx5dv_create_flow_action_modify_header(3) and mlx5dv_create_flow_action_packet_reformat(3).
tag_value : tag value to be passed in the work completion, to be used with type MLX5DV_FLOW_ACTION_TAG see ibv_create_cq_ex(3).
obj : DEVX object, to be used with type MLX5DV_FLOW_ACTION_DEST_DEVX or by MLX5DV_FLOW_ACTION_COUNTERS_DEVX.
mlx5dv_create_flow returns a pointer to the created flow rule, on error NULL will be returned and errno will be set.
mlx5dv_create_flow_action_modify_header(3), mlx5dv_create_flow_action_packet_reformat(3), mlx5dv_create_flow_matcher(3), mlx5dv_create_qp(3), ibv_create_qp_ex(3) ibv_create_cq_ex(3) ibv_create_counters(3)
Mark Bloch marb@mellanox.com