speed_to_fwcap
uint32_t speed_to_fwcap(unsigned int speed);
speed = speed_to_fwcap(lc->requested_speed);
ifmr->ifm_active |= port_mword(pi, speed_to_fwcap(lc->speed));
mword |= port_mword(pi, speed_to_fwcap(speed));
fwspeed = speed_to_fwcap(lc->requested_speed);