RU_SUSPENDED
if (RU_SUSPENDED != nic->ru_running) return;
nic->ru_running = RU_SUSPENDED;
nic->ru_running = RU_SUSPENDED;
if (-EAGAIN != err && RU_SUSPENDED == nic->ru_running)
nic->ru_running = RU_SUSPENDED;
nic->ru_running = RU_SUSPENDED;