[SCSI] qla2xxx: do not reset dev_loss_tmo in slave callout

This fixes a bug where the driver was resetting the
rport dev_loss_tmo when devices were added by adding
support for the get_host_def_dev_loss_tmo callout.
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

drivers/scsi/qla2xxx/qla_attr.c

@@ -1529,6 +1529,15 @@ qla2x00_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout)
 		rport->dev_loss_tmo = 1;
 }
 
+static void
+qla2x00_get_host_def_loss_tmo(struct Scsi_Host *shost)
+{
+	scsi_qla_host_t *vha = shost_priv(shost);
+	struct qla_hw_data *ha = vha->hw;
+
+	fc_host_def_dev_loss_tmo(shost) = ha->port_down_retry_count;
+}
+
 static void
 qla2x00_dev_loss_tmo_callbk(struct fc_rport *rport)
 {
@@ -1903,6 +1912,7 @@ struct fc_function_template qla2xxx_transport_functions = {
 	.show_host_fabric_name = 1,
 	.get_host_port_state = qla2x00_get_host_port_state,
 	.show_host_port_state = 1,
+	.get_host_def_dev_loss_tmo = qla2x00_get_host_def_loss_tmo,
 
 	.dd_fcrport_size = sizeof(struct fc_port *),
 	.show_rport_supported_classes = 1,
@@ -1949,6 +1959,7 @@ struct fc_function_template qla2xxx_transport_vport_functions = {
 	.show_host_fabric_name = 1,
 	.get_host_port_state = qla2x00_get_host_port_state,
 	.show_host_port_state = 1,
+	.get_host_def_dev_loss_tmo = qla2x00_get_host_def_loss_tmo,
 
 	.dd_fcrport_size = sizeof(struct fc_port *),
 	.show_rport_supported_classes = 1,

drivers/scsi/qla2xxx/qla_os.c

@@ -1295,17 +1295,12 @@ static int
 qla2xxx_slave_configure(struct scsi_device *sdev)
 {
 	scsi_qla_host_t *vha = shost_priv(sdev->host);
-	struct qla_hw_data *ha = vha->hw;
-	struct fc_rport *rport = starget_to_rport(sdev->sdev_target);
 	struct req_que *req = vha->req;
 
 	if (sdev->tagged_supported)
 		scsi_activate_tcq(sdev, req->max_q_depth);
 	else
 		scsi_deactivate_tcq(sdev, req->max_q_depth);
-
-	rport->dev_loss_tmo = ha->port_down_retry_count;
-
 	return 0;
 }