mlx5dv_create_flow_action_modify_header(3) — Linux manual page

mlx5dv_create_...n_modify_header(3)   mlx5dv_create_...n_modify_header(3)

NAME         top

       mlx5dv_create_flow_action_modify_header - Flow action modify
       header for mlx5 provider

SYNOPSIS         top

              #include <infiniband/mlx5dv.h>

              struct ibv_flow_action *
              mlx5dv_create_flow_action_modify_header(struct ibv_context *ctx,
                                  size_t actions_sz,
                                  uint64_t actions[],
                                  enum mlx5dv_flow_table_type ft_type)

DESCRIPTION         top

       Create a modify header flow steering action, it allows mutating a
       packet header.

ARGUMENTS         top

       ctx    RDMA device context to create the action on.

       actions_sz
              The size of actions buffer in bytes.

       actions
              A buffer which contains modify actions provided in device
              spec format (i.e. be64).

       ft_type
              Defines the flow table type to which the modify header
              action will be attached.

              MLX5DV_FLOW_TABLE_TYPE_NIC_RX: RX FLOW TABLE

              MLX5DV_FLOW_TABLE_TYPE_NIC_TX: TX FLOW TABLE

RETURN VALUE         top

       Upon success mlx5dv_create_flow_action_modify_header will return a
       new struct ibv_flow_action object, on error NULL will be returned
       and errno will be set.

SEE ALSO         top

       ibv_create_flow(3), ibv_create_flow_action(3)

COLOPHON         top

       This page is part of the rdma-core (RDMA Core Userspace Libraries
       and Daemons) project.  Information about the project can be found
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       report for this manual page, send it to
       linux-rdma@vger.kernel.org.  This page was obtained from the
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       ⟨https://github.com/linux-rdma/rdma-core.git⟩ on 2025-08-11.  (At
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                                      mlx5dv_create_...n_modify_header(3)

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