UMAD_OPEN_PORT
Section: OpenIB Programmer's Manual (3)
Updated: May 21, 2007
Page Index
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>
-