static void arcmsr_enable_eoi_mode(struct AdapterControlBlock *acb)
{
	switch (acb->adapter_type) {
	case ACB_ADAPTER_TYPE_A:
		return;
	case ACB_ADAPTER_TYPE_B:
		{
			struct MessageUnit_B *reg = acb->pmuB;
			writel(ARCMSR_MESSAGE_ACTIVE_EOI_MODE, reg->drv2iop_doorbell);
			if (!arcmsr_hbaB_wait_msgint_ready(acb)) {
				printk(KERN_NOTICE "ARCMSR IOP enables EOI_MODE TIMEOUT");
				return;
			}
		}
		break;
	case ACB_ADAPTER_TYPE_C:
		return;
	}
	return;
}
Unknown