rdma_get_devices(3) — Linux manual page

RDMA_GET_DEVICES(3)   Librdmacm Programmer's Manual  RDMA_GET_DEVICES(3)

NAME

       rdma_get_devices - Get a list of RDMA devices currently
       available.

SYNOPSIS

       #include <rdma/rdma_cma.h>

       struct ibv_context ** rdma_get_devices (int *num_devices);

ARGUMENTS

       num_devices If non-NULL, set to the number of devices returned.

DESCRIPTION

       Return a NULL-terminated array of opened RDMA devices.  Callers
       can use this routine to allocate resources on specific RDMA
       devices that will be shared across multiple rdma_cm_id's.

RETURN VALUE

       Returns an array of available RDMA devices, or NULL if the
       request fails.  On failure, errno will be set to indicate the
       failure reason.

NOTES

       The returned array must be released by calling rdma_free_devices.
       Devices remain opened while the librdmacm is loaded.

SEE ALSO

       rdma_free_devices(3)

COLOPHON

       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
       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 2024-06-14.  (At
       that time, the date of the most recent commit that was found in
       the repository was 2024-06-10.)  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
       man-pages@man7.org

librdmacm                      2007-05-15            RDMA_GET_DEVICES(3)

Pages that refer to this page: rdma_create_id(3), rdma_free_devices(3), rdma_cm(7)

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