sas_discover_event
sas_discover_event(port, DISCE_SUSPEND);
void sas_discover_event(struct asd_sas_port *port, enum discover_event ev);
sas_discover_event(phy->port, DISCE_DISCOVER_DOMAIN);
sas_discover_event(port, DISCE_REVALIDATE_DOMAIN);
sas_discover_event(port, DISCE_REVALIDATE_DOMAIN);
sas_discover_event(phy->port, DISCE_REVALIDATE_DOMAIN);
sas_discover_event(port, DISCE_RESUME);