scsi: mpi3mr: Return I/Os to an unrecoverable HBA with DID_ERROR

Complete all new I/O requests issued to an unrecoverable controller with
DID_ERROR status instead of returning the I/O requests with
SCSI_MLQUEUE_HOST_BUSY. This will prevent the infinite retries of the new
I/Os when a controller is in an unrecoverable state.

Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Sreekanth Reddy <[e-mail]>
Signed-off-by: Martin K. Petersen <[e-mail]>

drivers/scsi/mpi3mr/mpi3mr_os.c

···
 	int iprio_class;
 	u8 is_pcie_dev = 0;
 
+	if (mrioc->unrecoverable) {
+		scmd->result = DID_ERROR << 16;
+		scsi_done(scmd);
+		goto out;
+	}
+
 	sdev_priv_data = scmd->device->hostdata;
 	if (!sdev_priv_data || !sdev_priv_data->tgt_priv_data) {
 		scmd->result = DID_NO_CONNECT << 16;