NAME

       umad_get_ca_portguids - get the InfiniBand device ports GUIDs

SYNOPSIS

       #include <infiniband/umad.h>

       int umad_get_ca_portguids(char *ca_name, __be64 *portguids, int max);

DESCRIPTION

       umad_get_ca_portguids()  fills  the  portguids array with up to max port GUIDs belonging the specified IB
       device ca_name , or to the default IB device if ca_name is NULL.  The argument portguids is an  array  of
       max uint64_t entries.

RETURN VALUE

       On  success,  umad_get_ca_portguids()  returns  a  non-negative  value  equal to the number of port GUIDs
       actually filled.  Not all filled entries may be valid. Invalid entries will be 0.  For example, on  a  CA
       node  with only one port, this function returns a value of 2.  In this case, the value at index 0 will be
       invalid as it is reserved for switches.  On failure, a negative value is returned.

SEE ALSO

       umad_get_cas_names(3)

AUTHORS

       Hal Rosenstock <halr@voltaire.com>

       Dotan Barak <dotanb@mellanox.co.il>

OpenIB                                           August 8, 2016                         UMAD_GET_CA_PORTGUIDS(3)