diff --git a/drivers/thunderbolt/Makefile b/drivers/thunderbolt/Makefile
index 5d1053cdfa54..e276a9a62261 100644
--- a/drivers/thunderbolt/Makefile
+++ b/drivers/thunderbolt/Makefile
@@ -1,3 +1,3 @@
 obj-${CONFIG_THUNDERBOLT} := thunderbolt.o
 thunderbolt-objs := nhi.o ctl.o tb.o switch.o cap.o path.o tunnel_pci.o eeprom.o
-
+thunderbolt-objs += domain.o
diff --git a/drivers/thunderbolt/domain.c b/drivers/thunderbolt/domain.c
new file mode 100644
index 000000000000..3302f4c59638
--- /dev/null
+++ b/drivers/thunderbolt/domain.c
@@ -0,0 +1,230 @@
+/*
+ * Thunderbolt bus support
+ *
+ * Copyright (C) 2017, Intel Corporation
+ * Author:  Mika Westerberg <mika.westerberg@linux.intel.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/device.h>
+#include <linux/idr.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+
+#include "tb.h"
+
+static DEFINE_IDA(tb_domain_ida);
+
+struct bus_type tb_bus_type = {
+	.name = "thunderbolt",
+};
+
+static void tb_domain_release(struct device *dev)
+{
+	struct tb *tb = container_of(dev, struct tb, dev);
+
+	tb_ctl_free(tb->ctl);
+	destroy_workqueue(tb->wq);
+	ida_simple_remove(&tb_domain_ida, tb->index);
+	mutex_destroy(&tb->lock);
+	kfree(tb);
+}
+
+struct device_type tb_domain_type = {
+	.name = "thunderbolt_domain",
+	.release = tb_domain_release,
+};
+
+/**
+ * tb_domain_alloc() - Allocate a domain
+ * @nhi: Pointer to the host controller
+ * @privsize: Size of the connection manager private data
+ *
+ * Allocates and initializes a new Thunderbolt domain. Connection
+ * managers are expected to call this and then fill in @cm_ops
+ * accordingly.
+ *
+ * Call tb_domain_put() to release the domain before it has been added
+ * to the system.
+ *
+ * Return: allocated domain structure on %NULL in case of error
+ */
+struct tb *tb_domain_alloc(struct tb_nhi *nhi, size_t privsize)
+{
+	struct tb *tb;
+
+	/*
+	 * Make sure the structure sizes map with that the hardware
+	 * expects because bit-fields are being used.
+	 */
+	BUILD_BUG_ON(sizeof(struct tb_regs_switch_header) != 5 * 4);
+	BUILD_BUG_ON(sizeof(struct tb_regs_port_header) != 8 * 4);
+	BUILD_BUG_ON(sizeof(struct tb_regs_hop) != 2 * 4);
+
+	tb = kzalloc(sizeof(*tb) + privsize, GFP_KERNEL);
+	if (!tb)
+		return NULL;
+
+	tb->nhi = nhi;
+	mutex_init(&tb->lock);
+
+	tb->index = ida_simple_get(&tb_domain_ida, 0, 0, GFP_KERNEL);
+	if (tb->index < 0)
+		goto err_free;
+
+	tb->wq = alloc_ordered_workqueue("thunderbolt%d", 0, tb->index);
+	if (!tb->wq)
+		goto err_remove_ida;
+
+	tb->dev.parent = &nhi->pdev->dev;
+	tb->dev.bus = &tb_bus_type;
+	tb->dev.type = &tb_domain_type;
+	dev_set_name(&tb->dev, "domain%d", tb->index);
+	device_initialize(&tb->dev);
+
+	return tb;
+
+err_remove_ida:
+	ida_simple_remove(&tb_domain_ida, tb->index);
+err_free:
+	kfree(tb);
+
+	return NULL;
+}
+
+/**
+ * tb_domain_add() - Add domain to the system
+ * @tb: Domain to add
+ *
+ * Starts the domain and adds it to the system. Hotplugging devices will
+ * work after this has been returned successfully. In order to remove
+ * and release the domain after this function has been called, call
+ * tb_domain_remove().
+ *
+ * Return: %0 in case of success and negative errno in case of error
+ */
+int tb_domain_add(struct tb *tb)
+{
+	int ret;
+
+	if (WARN_ON(!tb->cm_ops))
+		return -EINVAL;
+
+	mutex_lock(&tb->lock);
+
+	tb->ctl = tb_ctl_alloc(tb->nhi, tb->cm_ops->hotplug, tb);
+	if (!tb->ctl) {
+		ret = -ENOMEM;
+		goto err_unlock;
+	}
+
+	/*
+	 * tb_schedule_hotplug_handler may be called as soon as the config
+	 * channel is started. Thats why we have to hold the lock here.
+	 */
+	tb_ctl_start(tb->ctl);
+
+	ret = device_add(&tb->dev);
+	if (ret)
+		goto err_ctl_stop;
+
+	/* Start the domain */
+	if (tb->cm_ops->start) {
+		ret = tb->cm_ops->start(tb);
+		if (ret)
+			goto err_domain_del;
+	}
+
+	/* This starts event processing */
+	mutex_unlock(&tb->lock);
+
+	return 0;
+
+err_domain_del:
+	device_del(&tb->dev);
+err_ctl_stop:
+	tb_ctl_stop(tb->ctl);
+err_unlock:
+	mutex_unlock(&tb->lock);
+
+	return ret;
+}
+
+/**
+ * tb_domain_remove() - Removes and releases a domain
+ * @tb: Domain to remove
+ *
+ * Stops the domain, removes it from the system and releases all
+ * resources once the last reference has been released.
+ */
+void tb_domain_remove(struct tb *tb)
+{
+	mutex_lock(&tb->lock);
+	if (tb->cm_ops->stop)
+		tb->cm_ops->stop(tb);
+	/* Stop the domain control traffic */
+	tb_ctl_stop(tb->ctl);
+	mutex_unlock(&tb->lock);
+
+	flush_workqueue(tb->wq);
+	device_unregister(&tb->dev);
+}
+
+/**
+ * tb_domain_suspend_noirq() - Suspend a domain
+ * @tb: Domain to suspend
+ *
+ * Suspends all devices in the domain and stops the control channel.
+ */
+int tb_domain_suspend_noirq(struct tb *tb)
+{
+	int ret = 0;
+
+	/*
+	 * The control channel interrupt is left enabled during suspend
+	 * and taking the lock here prevents any events happening before
+	 * we actually have stopped the domain and the control channel.
+	 */
+	mutex_lock(&tb->lock);
+	if (tb->cm_ops->suspend_noirq)
+		ret = tb->cm_ops->suspend_noirq(tb);
+	if (!ret)
+		tb_ctl_stop(tb->ctl);
+	mutex_unlock(&tb->lock);
+
+	return ret;
+}
+
+/**
+ * tb_domain_resume_noirq() - Resume a domain
+ * @tb: Domain to resume
+ *
+ * Re-starts the control channel, and resumes all devices connected to
+ * the domain.
+ */
+int tb_domain_resume_noirq(struct tb *tb)
+{
+	int ret = 0;
+
+	mutex_lock(&tb->lock);
+	tb_ctl_start(tb->ctl);
+	if (tb->cm_ops->resume_noirq)
+		ret = tb->cm_ops->resume_noirq(tb);
+	mutex_unlock(&tb->lock);
+
+	return ret;
+}
+
+int tb_domain_init(void)
+{
+	return bus_register(&tb_bus_type);
+}
+
+void tb_domain_exit(void)
+{
+	bus_unregister(&tb_bus_type);
+	ida_destroy(&tb_domain_ida);
+}
diff --git a/drivers/thunderbolt/nhi.c b/drivers/thunderbolt/nhi.c
index ed75c49748f5..c1113a3c4128 100644
--- a/drivers/thunderbolt/nhi.c
+++ b/drivers/thunderbolt/nhi.c
@@ -586,16 +586,16 @@ static int nhi_suspend_noirq(struct device *dev)
 {
 	struct pci_dev *pdev = to_pci_dev(dev);
 	struct tb *tb = pci_get_drvdata(pdev);
-	thunderbolt_suspend(tb);
-	return 0;
+
+	return tb_domain_suspend_noirq(tb);
 }
 
 static int nhi_resume_noirq(struct device *dev)
 {
 	struct pci_dev *pdev = to_pci_dev(dev);
 	struct tb *tb = pci_get_drvdata(pdev);
-	thunderbolt_resume(tb);
-	return 0;
+
+	return tb_domain_resume_noirq(tb);
 }
 
 static void nhi_shutdown(struct tb_nhi *nhi)
@@ -715,12 +715,17 @@ static int nhi_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	iowrite32(3906250 / 10000, nhi->iobase + 0x38c00);
 
 	dev_info(&nhi->pdev->dev, "NHI initialized, starting thunderbolt\n");
-	tb = thunderbolt_alloc_and_start(nhi);
-	if (!tb) {
+	tb = tb_probe(nhi);
+	if (!tb)
+		return -ENODEV;
+
+	res = tb_domain_add(tb);
+	if (res) {
 		/*
 		 * At this point the RX/TX rings might already have been
 		 * activated. Do a proper shutdown.
 		 */
+		tb_domain_put(tb);
 		nhi_shutdown(nhi);
 		return -EIO;
 	}
@@ -733,7 +738,8 @@ static void nhi_remove(struct pci_dev *pdev)
 {
 	struct tb *tb = pci_get_drvdata(pdev);
 	struct tb_nhi *nhi = tb->nhi;
-	thunderbolt_shutdown_and_free(tb);
+
+	tb_domain_remove(tb);
 	nhi_shutdown(nhi);
 }
 
@@ -797,14 +803,23 @@ static struct pci_driver nhi_driver = {
 
 static int __init nhi_init(void)
 {
+	int ret;
+
 	if (!dmi_match(DMI_BOARD_VENDOR, "Apple Inc."))
 		return -ENOSYS;
-	return pci_register_driver(&nhi_driver);
+	ret = tb_domain_init();
+	if (ret)
+		return ret;
+	ret = pci_register_driver(&nhi_driver);
+	if (ret)
+		tb_domain_exit();
+	return ret;
 }
 
 static void __exit nhi_unload(void)
 {
 	pci_unregister_driver(&nhi_driver);
+	tb_domain_exit();
 }
 
 module_init(nhi_init);
diff --git a/drivers/thunderbolt/tb.c b/drivers/thunderbolt/tb.c
index 6b44076e1380..9f00a0f28d53 100644
--- a/drivers/thunderbolt/tb.c
+++ b/drivers/thunderbolt/tb.c
@@ -12,6 +12,18 @@
 #include "tb_regs.h"
 #include "tunnel_pci.h"
 
+/**
+ * struct tb_cm - Simple Thunderbolt connection manager
+ * @tunnel_list: List of active tunnels
+ * @hotplug_active: tb_handle_hotplug will stop progressing plug
+ *		    events and exit if this is not set (it needs to
+ *		    acquire the lock one more time). Used to drain wq
+ *		    after cfg has been paused.
+ */
+struct tb_cm {
+	struct list_head tunnel_list;
+	bool hotplug_active;
+};
 
 /* enumeration & hot plug handling */
 
@@ -62,12 +74,14 @@ static void tb_scan_port(struct tb_port *port)
  */
 static void tb_free_invalid_tunnels(struct tb *tb)
 {
+	struct tb_cm *tcm = tb_priv(tb);
 	struct tb_pci_tunnel *tunnel;
 	struct tb_pci_tunnel *n;
-	list_for_each_entry_safe(tunnel, n, &tb->tunnel_list, list)
-	{
+
+	list_for_each_entry_safe(tunnel, n, &tcm->tunnel_list, list) {
 		if (tb_pci_is_invalid(tunnel)) {
 			tb_pci_deactivate(tunnel);
+			list_del(&tunnel->list);
 			tb_pci_free(tunnel);
 		}
 	}
@@ -149,6 +163,8 @@ static void tb_activate_pcie_devices(struct tb *tb)
 	struct tb_port *up_port;
 	struct tb_port *down_port;
 	struct tb_pci_tunnel *tunnel;
+	struct tb_cm *tcm = tb_priv(tb);
+
 	/* scan for pcie devices at depth 1*/
 	for (i = 1; i <= tb->root_switch->config.max_port_number; i++) {
 		if (tb_is_upstream_port(&tb->root_switch->ports[i]))
@@ -195,6 +211,7 @@ static void tb_activate_pcie_devices(struct tb *tb)
 			tb_pci_free(tunnel);
 		}
 
+		list_add(&tunnel->list, &tcm->tunnel_list);
 	}
 }
 
@@ -217,10 +234,11 @@ static void tb_handle_hotplug(struct work_struct *work)
 {
 	struct tb_hotplug_event *ev = container_of(work, typeof(*ev), work);
 	struct tb *tb = ev->tb;
+	struct tb_cm *tcm = tb_priv(tb);
 	struct tb_switch *sw;
 	struct tb_port *port;
 	mutex_lock(&tb->lock);
-	if (!tb->hotplug_active)
+	if (!tcm->hotplug_active)
 		goto out; /* during init, suspend or shutdown */
 
 	sw = get_switch_at_route(tb->root_switch, ev->route);
@@ -296,22 +314,14 @@ static void tb_schedule_hotplug_handler(void *data, u64 route, u8 port,
 	queue_work(tb->wq, &ev->work);
 }
 
-/**
- * thunderbolt_shutdown_and_free() - shutdown everything
- *
- * Free all switches and the config channel.
- *
- * Used in the error path of thunderbolt_alloc_and_start.
- */
-void thunderbolt_shutdown_and_free(struct tb *tb)
+static void tb_stop(struct tb *tb)
 {
+	struct tb_cm *tcm = tb_priv(tb);
 	struct tb_pci_tunnel *tunnel;
 	struct tb_pci_tunnel *n;
 
-	mutex_lock(&tb->lock);
-
 	/* tunnels are only present after everything has been initialized */
-	list_for_each_entry_safe(tunnel, n, &tb->tunnel_list, list) {
+	list_for_each_entry_safe(tunnel, n, &tcm->tunnel_list, list) {
 		tb_pci_deactivate(tunnel);
 		tb_pci_free(tunnel);
 	}
@@ -320,98 +330,44 @@ void thunderbolt_shutdown_and_free(struct tb *tb)
 		tb_switch_free(tb->root_switch);
 	tb->root_switch = NULL;
 
-	if (tb->ctl) {
-		tb_ctl_stop(tb->ctl);
-		tb_ctl_free(tb->ctl);
-	}
-	tb->ctl = NULL;
-	tb->hotplug_active = false; /* signal tb_handle_hotplug to quit */
-
-	/* allow tb_handle_hotplug to acquire the lock */
-	mutex_unlock(&tb->lock);
-	if (tb->wq) {
-		flush_workqueue(tb->wq);
-		destroy_workqueue(tb->wq);
-		tb->wq = NULL;
-	}
-	mutex_destroy(&tb->lock);
-	kfree(tb);
+	tcm->hotplug_active = false; /* signal tb_handle_hotplug to quit */
 }
 
-/**
- * thunderbolt_alloc_and_start() - setup the thunderbolt bus
- *
- * Allocates a tb_cfg control channel, initializes the root switch, enables
- * plug events and activates pci devices.
- *
- * Return: Returns NULL on error.
- */
-struct tb *thunderbolt_alloc_and_start(struct tb_nhi *nhi)
+static int tb_start(struct tb *tb)
 {
-	struct tb *tb;
-
-	BUILD_BUG_ON(sizeof(struct tb_regs_switch_header) != 5 * 4);
-	BUILD_BUG_ON(sizeof(struct tb_regs_port_header) != 8 * 4);
-	BUILD_BUG_ON(sizeof(struct tb_regs_hop) != 2 * 4);
-
-	tb = kzalloc(sizeof(*tb), GFP_KERNEL);
-	if (!tb)
-		return NULL;
-
-	tb->nhi = nhi;
-	mutex_init(&tb->lock);
-	mutex_lock(&tb->lock);
-	INIT_LIST_HEAD(&tb->tunnel_list);
-
-	tb->wq = alloc_ordered_workqueue("thunderbolt", 0);
-	if (!tb->wq)
-		goto err_locked;
-
-	tb->ctl = tb_ctl_alloc(tb->nhi, tb_schedule_hotplug_handler, tb);
-	if (!tb->ctl)
-		goto err_locked;
-	/*
-	 * tb_schedule_hotplug_handler may be called as soon as the config
-	 * channel is started. Thats why we have to hold the lock here.
-	 */
-	tb_ctl_start(tb->ctl);
+	struct tb_cm *tcm = tb_priv(tb);
 
 	tb->root_switch = tb_switch_alloc(tb, 0);
 	if (!tb->root_switch)
-		goto err_locked;
+		return -ENOMEM;
 
 	/* Full scan to discover devices added before the driver was loaded. */
 	tb_scan_switch(tb->root_switch);
 	tb_activate_pcie_devices(tb);
 
 	/* Allow tb_handle_hotplug to progress events */
-	tb->hotplug_active = true;
-	mutex_unlock(&tb->lock);
-	return tb;
-
-err_locked:
-	mutex_unlock(&tb->lock);
-	thunderbolt_shutdown_and_free(tb);
-	return NULL;
+	tcm->hotplug_active = true;
+	return 0;
 }
 
-void thunderbolt_suspend(struct tb *tb)
+static int tb_suspend_noirq(struct tb *tb)
 {
+	struct tb_cm *tcm = tb_priv(tb);
+
 	tb_info(tb, "suspending...\n");
-	mutex_lock(&tb->lock);
 	tb_switch_suspend(tb->root_switch);
-	tb_ctl_stop(tb->ctl);
-	tb->hotplug_active = false; /* signal tb_handle_hotplug to quit */
-	mutex_unlock(&tb->lock);
+	tcm->hotplug_active = false; /* signal tb_handle_hotplug to quit */
 	tb_info(tb, "suspend finished\n");
+
+	return 0;
 }
 
-void thunderbolt_resume(struct tb *tb)
+static int tb_resume_noirq(struct tb *tb)
 {
+	struct tb_cm *tcm = tb_priv(tb);
 	struct tb_pci_tunnel *tunnel, *n;
+
 	tb_info(tb, "resuming...\n");
-	mutex_lock(&tb->lock);
-	tb_ctl_start(tb->ctl);
 
 	/* remove any pci devices the firmware might have setup */
 	tb_switch_reset(tb, 0);
@@ -419,9 +375,9 @@ void thunderbolt_resume(struct tb *tb)
 	tb_switch_resume(tb->root_switch);
 	tb_free_invalid_tunnels(tb);
 	tb_free_unplugged_children(tb->root_switch);
-	list_for_each_entry_safe(tunnel, n, &tb->tunnel_list, list)
+	list_for_each_entry_safe(tunnel, n, &tcm->tunnel_list, list)
 		tb_pci_restart(tunnel);
-	if (!list_empty(&tb->tunnel_list)) {
+	if (!list_empty(&tcm->tunnel_list)) {
 		/*
 		 * the pcie links need some time to get going.
 		 * 100ms works for me...
@@ -430,7 +386,33 @@ void thunderbolt_resume(struct tb *tb)
 		msleep(100);
 	}
 	 /* Allow tb_handle_hotplug to progress events */
-	tb->hotplug_active = true;
-	mutex_unlock(&tb->lock);
+	tcm->hotplug_active = true;
 	tb_info(tb, "resume finished\n");
+
+	return 0;
+}
+
+static const struct tb_cm_ops tb_cm_ops = {
+	.start = tb_start,
+	.stop = tb_stop,
+	.suspend_noirq = tb_suspend_noirq,
+	.resume_noirq = tb_resume_noirq,
+	.hotplug = tb_schedule_hotplug_handler,
+};
+
+struct tb *tb_probe(struct tb_nhi *nhi)
+{
+	struct tb_cm *tcm;
+	struct tb *tb;
+
+	tb = tb_domain_alloc(nhi, sizeof(*tcm));
+	if (!tb)
+		return NULL;
+
+	tb->cm_ops = &tb_cm_ops;
+
+	tcm = tb_priv(tb);
+	INIT_LIST_HEAD(&tcm->tunnel_list);
+
+	return tb;
 }
diff --git a/drivers/thunderbolt/tb.h b/drivers/thunderbolt/tb.h
index 0b78bc4fbe61..5fab4c44f124 100644
--- a/drivers/thunderbolt/tb.h
+++ b/drivers/thunderbolt/tb.h
@@ -92,29 +92,52 @@ struct tb_path {
 	int path_length; /* number of hops */
 };
 
+/**
+ * struct tb_cm_ops - Connection manager specific operations vector
+ * @start: Starts the domain
+ * @stop: Stops the domain
+ * @suspend_noirq: Connection manager specific suspend_noirq
+ * @resume_noirq: Connection manager specific resume_noirq
+ * @hotplug: Handle hotplug event
+ */
+struct tb_cm_ops {
+	int (*start)(struct tb *tb);
+	void (*stop)(struct tb *tb);
+	int (*suspend_noirq)(struct tb *tb);
+	int (*resume_noirq)(struct tb *tb);
+	hotplug_cb hotplug;
+};
 
 /**
  * struct tb - main thunderbolt bus structure
+ * @dev: Domain device
+ * @lock: Big lock. Must be held when accessing cfg or any struct
+ *	  tb_switch / struct tb_port.
+ * @nhi: Pointer to the NHI structure
+ * @ctl: Control channel for this domain
+ * @wq: Ordered workqueue for all domain specific work
+ * @root_switch: Root switch of this domain
+ * @cm_ops: Connection manager specific operations vector
+ * @index: Linux assigned domain number
+ * @privdata: Private connection manager specific data
  */
 struct tb {
-	struct mutex lock;	/*
-				 * Big lock. Must be held when accessing cfg or
-				 * any struct tb_switch / struct tb_port.
-				 */
+	struct device dev;
+	struct mutex lock;
 	struct tb_nhi *nhi;
 	struct tb_ctl *ctl;
-	struct workqueue_struct *wq; /* ordered workqueue for plug events */
+	struct workqueue_struct *wq;
 	struct tb_switch *root_switch;
-	struct list_head tunnel_list; /* list of active PCIe tunnels */
-	bool hotplug_active; /*
-			      * tb_handle_hotplug will stop progressing plug
-			      * events and exit if this is not set (it needs to
-			      * acquire the lock one more time). Used to drain
-			      * wq after cfg has been paused.
-			      */
-
+	const struct tb_cm_ops *cm_ops;
+	int index;
+	unsigned long privdata[0];
 };
 
+static inline void *tb_priv(struct tb *tb)
+{
+	return (void *)tb->privdata;
+}
+
 /* helper functions & macros */
 
 /**
@@ -215,11 +238,24 @@ static inline int tb_port_write(struct tb_port *port, const void *buffer,
 #define tb_port_info(port, fmt, arg...) \
 	__TB_PORT_PRINT(tb_info, port, fmt, ##arg)
 
+struct tb *tb_probe(struct tb_nhi *nhi);
 
-struct tb *thunderbolt_alloc_and_start(struct tb_nhi *nhi);
-void thunderbolt_shutdown_and_free(struct tb *tb);
-void thunderbolt_suspend(struct tb *tb);
-void thunderbolt_resume(struct tb *tb);
+extern struct bus_type tb_bus_type;
+extern struct device_type tb_domain_type;
+
+int tb_domain_init(void);
+void tb_domain_exit(void);
+
+struct tb *tb_domain_alloc(struct tb_nhi *nhi, size_t privsize);
+int tb_domain_add(struct tb *tb);
+void tb_domain_remove(struct tb *tb);
+int tb_domain_suspend_noirq(struct tb *tb);
+int tb_domain_resume_noirq(struct tb *tb);
+
+static inline void tb_domain_put(struct tb *tb)
+{
+	put_device(&tb->dev);
+}
 
 struct tb_switch *tb_switch_alloc(struct tb *tb, u64 route);
 void tb_switch_free(struct tb_switch *sw);
diff --git a/drivers/thunderbolt/tunnel_pci.c b/drivers/thunderbolt/tunnel_pci.c
index f4ce9845e42a..ca4475907d7a 100644
--- a/drivers/thunderbolt/tunnel_pci.c
+++ b/drivers/thunderbolt/tunnel_pci.c
@@ -194,19 +194,13 @@ err:
  */
 int tb_pci_activate(struct tb_pci_tunnel *tunnel)
 {
-	int res;
 	if (tunnel->path_to_up->activated || tunnel->path_to_down->activated) {
 		tb_tunnel_WARN(tunnel,
 			       "trying to activate an already activated tunnel\n");
 		return -EINVAL;
 	}
 
-	res = tb_pci_restart(tunnel);
-	if (res)
-		return res;
-
-	list_add(&tunnel->list, &tunnel->tb->tunnel_list);
-	return 0;
+	return tb_pci_restart(tunnel);
 }
 
 
@@ -227,6 +221,5 @@ void tb_pci_deactivate(struct tb_pci_tunnel *tunnel)
 		tb_path_deactivate(tunnel->path_to_down);
 	if (tunnel->path_to_up->activated)
 		tb_path_deactivate(tunnel->path_to_up);
-	list_del_init(&tunnel->list);
 }