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>