IGB_STALL
atomic_and_32(&igb->igb_state, ~(IGB_ERROR | IGB_STALL));
if (igb_stall_check(igb) || (igb->igb_state & IGB_STALL)) {
atomic_or_32(&igb->igb_state, IGB_STALL);
atomic_or_32(&igb->igb_state, IGB_STALL);
atomic_or_32(&igb->igb_state, IGB_STALL);