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mlx5dv_get_data_direct_sysfs_path(3) — Linux manual page

mlx5dv_get_data_direct_sysfs_path(3)mlx5dv_get_data_direct_sysfs_path(3)

NAME        top

       mlx5dv_get_data_direct_sysfs_path - Get the sysfs path of a data       direct device

SYNOPSIS        top

              #include <infiniband/mlx5dv.h>              int mlx5dv_get_data_direct_sysfs_path(struct ibv_context *context, char *buf,                                                    size_t buf_len)

DESCRIPTION        top

       Get the sysfs path of the data direct device that is associated       with the givencontext.       This lets an application to discover whether/which data direct       device is associated with the givencontext.

ARGUMENTS        top

context              RDMA device context to work on.buf    The buffer where to place the sysfs path of the associated              data direct device.buf_len              The length of the buffer.

RETURN VALUE        top

       Upon success 0 is returned or the value of errno on a failure.

ERRORS        top

       The below specific error values should be considered.       ENODEV              There is no associated data direct device for the given *context*.       ENOSPC              The input buffer size is too small to hold the full sysfs path.

NOTES        top

       Upon succees, the caller should add the /sys/ prefix to get the       full sysfs path.

SEE ALSO        top

mlx5dv_reg_dmabuf_mr(3)

AUTHOR        top

       Yishai Hadas ⟨yishaih@nvidia.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_get_data_direct_sysfs_path(3)

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