man7.org > Linux > man-pages

Linux/UNIX system programming training

umad_open_smi_port(3) — Linux manual page

NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | SEE ALSO | AUTHOR | COLOPHON 

UMAD_OPEN_SMI_PORT(3)   OpenIB Programmer's Manual  UMAD_OPEN_SMI_PORT(3)

NAME         top

       umad_open_smi_port - open InfiniBand device SMI port for umad
       access

SYNOPSIS         top

       #include <infiniband/umad.h>

       int umad_open_smi_port(char *ca_name, int portnum);

DESCRIPTION         top

       umad_open_smi_port() opens the SMI port portnum of the IB device
       ca_name for umad access. The port is selected by the library if
       not all parameters are provided (see umad_get_port() for details).
       Only SMI ports will be selected.

RETURN VALUE         top

       umad_open_smi_port() returns 0 or an unique positive value of umad
       device descriptor on success, and a negative value on error as
       follows:
        -EOPNOTSUPP ABI version doesn't match
        -ENODEV     IB device with SMI port can't be resolved
        -EINVAL     port is not valid (bad portnum or no umad device)
        -EIO        umad device for this port can't be opened

SEE ALSO         top

       umad_open_port(3),

AUTHOR         top

       Amir Nir <anir@nvidia.com>

COLOPHON         top

       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 2025-02-02.  (At
       that time, the date of the most recent commit that was found in
       the repository was 2025-02-02.)  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

OpenIB                        June 18, 2024         UMAD_OPEN_SMI_PORT(3)

HTML rendering created 2025-02-02 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.

Cover of TLPI