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NAME | SYNOPSIS | DESCRIPTION | ARGUMENTS | RETURN VALUE | SEE ALSO | AUTHOR | COLOPHON |
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mlx5dv_create_flow(3) mlx5 Programmer’s Manual mlx5dv_create_flow(3)
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
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 ⟨[email protected]⟩
This page is part of the rdma-core (RDMA Core Userspace Libraries
and Daemons) project. Information about the project can be found
at ⟨https://github.com/linux-rdma/rdma-core⟩. If you have a bug
report for this manual page, send it to
[email protected]. This page was obtained from the
project's upstream Git repository
⟨https://github.com/linux-rdma/rdma-core.git⟩ on 2025-08-11. (At
that time, the date of the most recent commit that was found in
the repository was 2025-08-04.) If you discover any rendering
problems in this HTML version of the page, or you believe there is
a better or more up-to-date source for the page, or you have
corrections or improvements to the information in this COLOPHON
(which is not part of the original manual page), send a mail to
[email protected]
mlx5 2018-9-19 mlx5dv_create_flow(3)
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HTML rendering created 2025-09-06 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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