umad_open_port(3) — Linux manual page

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

NAME

       umad_open_port - open InfiniBand device port for umad access

SYNOPSIS

       #include <infiniband/umad.h>

       int umad_open_port(char *ca_name, int portnum);

DESCRIPTION

       umad_open_port() opens the 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).

RETURN VALUE

       umad_open_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 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

       umad_close_port(3), umad_get_cas_names(3), umad_get_port(3)

AUTHOR

       Hal Rosenstock <halr@voltaire.com>

COLOPHON

       This page is part of the rdma-core (RDMA Core Userspace Libraries
       and Daemons) project.  Information about the project can be found
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       report for this manual page, send it to
       linux-rdma@vger.kernel.org.  This page was obtained from the
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       ⟨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
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OpenIB                        May 21, 2007             UMAD_OPEN_PORT(3)

Pages that refer to this page: umad_close_port(3), umad_get_cas_names(3), umad_get_issm_path(3)

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