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
AUTHOR¶
- Hal Rosenstock <halr@voltaire.com>
