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mlx5dv_devx_create_event_channel(3) — Linux manual page

mlx5dv_devx_cr...y_event_channel(3)mlx5dv_devx_cr...y_event_channel(3)

NAME        top

       mlx5dv_devx_create_event_channel - Create an event channel to be       used for DEVX asynchronous events.       mlx5dv_devx_destroy_event_channel - Destroy a DEVX event channel.

SYNOPSIS        top

              #include <infiniband/mlx5dv.h>              struct mlx5dv_devx_event_channel {                  int fd;              };              struct mlx5dv_devx_event_channel *              mlx5dv_devx_create_event_channel(struct ibv_context *context,                                               enum mlx5dv_devx_create_event_channel_flags flags)              void mlx5dv_devx_destroy_event_channel(struct mlx5dv_devx_event_channel *event_channel)

DESCRIPTION        top

       Create or destroy a channel to be used for DEVX asynchronous       events.       The create verb exposes an mlx5dv_devx_event_channel object that       can be used to read asynchronous DEVX events.  This lets an       application to subscribe to get device events and once an event       occurred read it from this object.

ARGUMENTS        top

context              RDMA device context to create the channel on.flags  MLX5DV_DEVX_CREATE_EVENT_CHANNEL_FLAGS_OMIT_EV_DATA: omit              the event data on this channel.

RETURN VALUE        top

       Upon successmlx5dv_devx_create_event_channel will return a newstruct mlx5dv_devx_event_channel object, on error NULL will be       returned and errno will be set.

SEE ALSO        top

mlx5dv_open_device(3),mlx5dv_devx_obj_create(3)       #AUTHOR       Yishai Hadas ⟨yishaih@mellanox.com⟩

COLOPHON        top

       This page is part of therdma-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       linux-rdma@vger.kernel.org.  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 isnot part of the original manual page), send a mail to       man-pages@man7.orgmlx5dv_devx_cr...y_event_channel(3)

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