scsi: smartpqi: update pqi passthru ioctl

- make pass-thru requests bi-directional

Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
Signed-off-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/smartpqi/smartpqi_init.c

@@ -5499,6 +5499,7 @@ static int pqi_passthru_ioctl(struct pqi_ctrl_info *ctrl_info, void __user *arg)
 	case XFER_NONE:
 	case XFER_WRITE:
 	case XFER_READ:
+	case XFER_READ | XFER_WRITE:
 		break;
 	default:
 		return -EINVAL;
@@ -5539,6 +5540,9 @@ static int pqi_passthru_ioctl(struct pqi_ctrl_info *ctrl_info, void __user *arg)
 	case XFER_READ:
 		request.data_direction = SOP_READ_FLAG;
 		break;
+	case XFER_READ | XFER_WRITE:
+		request.data_direction = SOP_BIDIRECTIONAL;
+		break;
 	}
 
 	request.task_attribute = SOP_TASK_ATTRIBUTE_SIMPLE;