mlx5dv_create_flow_action_packet_reformat(3)

NAME

mlx5dv_create_flow_action_packet_reformat - Flow action reformat packet for mlx5 provider

SYNOPSIS

    #include <infiniband/mlx5dv.h>

    struct ibv_flow_action *
    mlx5dv_create_flow_action_packet_reformat(struct ibv_context *ctx,
                          size_t data_sz,
                          void *data,
                          enum mlx5dv_flow_action_packet_reformat_type reformat_type,
                          enum mlx5dv_flow_table_type ft_type)

DESCRIPTION

Create a packet reformat flow steering action. It allows adding/removing packet headers.

ARGUMENTS

ctx

    RDMA device context to create the action on.

data_sz

    The size of *data* buffer.

data

    A buffer which contains headers in case the actions requires them.

reformat_type

    The reformat type to be create. Use enum mlx5dv_flow_action_packet_reformat_type.

    MLX5DV_FLOW_ACTION_PACKET_REFORMAT_TYPE_L2_TUNNEL_TO_L2: Decap a generic L2 tunneled packet up to inner L2.

    MLX5DV_FLOW_ACTION_PACKET_REFORMAT_TYPE_L2_TO_L2_TUNNEL: Generic encap, data should contain the encapsulating headers.

    MLX5DV_FLOW_ACTION_PACKET_REFORMAT_TYPE_L3_TUNNEL_TO_L2: Will do decap where the inner packet starts from L3. data should be MAC or MAC + vlan (14 or 18 bytes) to be appended to the packet after the decap action.

    MLX5DV_FLOW_ACTION_PACKET_REFORMAT_TYPE_L2_TO_L3_TUNNEL: Will do encap where is L2 of the original packet will not be included. data should be the encapsulating header.

ft_type

    It defines the flow table type to which the packet reformat action

    will be attached.

RETURN VALUE

Upon success mlx5dv_create_flow_action_packet_reformat will return a new struct ibv_flow_action object, on error NULL will be returned and errno will be set.

SEE ALSO

ibv_create_flow(3), ibv_create_flow_action(3)