Man page - umad_open_port(3)

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Manual

UMAD_OPEN_PORT

NAME
SYNOPSIS
DESCRIPTION
RETURN VALUE
SEE ALSO
AUTHOR

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>