umad_open_port(3) - Linux man page

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: -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>

Referenced By

umad_get_issm_path(3)