1 /* SPDX-License-Identifier: GPL-2.0 */
40  * enum tb_security_level - Thunderbolt security level
61  * struct tb - main thunderbolt bus structure
97 	return (link - 1) / TB_LINKS_PER_PHY_PORT;  in tb_phy_port_from_link()
101  * struct tb_property_dir - XDomain property directory
123  * struct tb_property - XDomain property
125  * @key: Key for the property (always terminated).
126  * @type: Type of the property
127  * @length: Length of the property data in dwords
128  * @value: Property value
166 #define tb_property_for_each(dir, property)			\  argument
167 	for (property = tb_property_get_next(dir, NULL);	\
168 	     property;						\
169 	     property = tb_property_get_next(dir, property))
175  * struct tb_xdomain - Cross-domain (XDomain) connection
219  * non-standard properties but they need hold @lock when doing so
238 	bool link_usb4;
239 	bool is_unplugged;
240 	bool needs_uuid;
254 	bool bonding_possible;
275 	return tb_xdomain_disable_paths(xd, -1, -1, -1, -1);  in tb_xdomain_disable_all_paths()
286 	mutex_lock(&tb->lock);  in tb_xdomain_find_by_uuid_locked()
288 	mutex_unlock(&tb->lock);  in tb_xdomain_find_by_uuid_locked()
298 	mutex_lock(&tb->lock);  in tb_xdomain_find_by_route_locked()
300 	mutex_unlock(&tb->lock);  in tb_xdomain_find_by_route_locked()
308 		get_device(&xd->dev);  in tb_xdomain_get()
315 		put_device(&xd->dev);  in tb_xdomain_put()
318 static inline bool tb_is_xdomain(const struct device *dev)  in tb_is_xdomain()
320 	return dev->type == &tb_xdomain_type;  in tb_is_xdomain()
339  * tb_protocol_handler - Protocol specific handler
367  * struct tb_service - Thunderbolt service
397 		get_device(&svc->dev);  in tb_service_get()
404 		put_device(&svc->dev);  in tb_service_put()
407 static inline bool tb_is_service(const struct device *dev)  in tb_is_service()
409 	return dev->type == &tb_service_type;  in tb_is_service()
420  * tb_service_driver - Thunderbolt service driver
446 	return dev_get_drvdata(&svc->dev);  in tb_service_get_drvdata()
451 	dev_set_drvdata(&svc->dev, data);  in tb_service_set_drvdata()
456 	return tb_to_xdomain(svc->dev.parent);  in tb_service_parent()
460  * struct tb_nhi - thunderbolt native host interface
468  * @msix_ida: Used to allocate MSI-X vectors for rings
471  * @iommu_dma_protection: An IOMMU will isolate external-facing ports.
473  *		    MSI-X is used.
485 	bool going_away;
486 	bool iommu_dma_protection;
493  * struct tb_ring - thunderbolt TX or RX ring associated with a NHI
495  *	  nhi->lock.
507  * @irq: MSI-X irq number if the ring uses MSI-X. %0 otherwise.
508  * @vector: MSI-X vector number the ring uses (only set if @irq is > 0)
530 	bool is_tx:1;
531 	bool running:1;
546 /* Enable end-to-end flow control */
550 typedef void (*ring_cb)(struct tb_ring *, struct ring_frame *, bool canceled);
553  * enum ring_desc_flags - Flags for DMA ring descriptor
571  * struct ring_frame - For use with ring_rx/ring_tx
606  * tb_ring_rx() - enqueue a frame on an RX ring
610  * @frame->buffer, @frame->buffer_phy have to be set. The buffer must
613  * @frame->callback will be invoked with @frame->size, @frame->flags,
614  * @frame->eof, @frame->sof set once the frame has been received.
617  * @frame->callback will be called with canceled set to true.
619  * Return: Returns %-ESHUTDOWN if ring_stop has been called. Zero otherwise.
623 	WARN_ON(ring->is_tx);  in tb_ring_rx()
628  * tb_ring_tx() - enqueue a frame on an TX ring
632  * @frame->buffer, @frame->buffer_phy, @frame->size, @frame->eof and
633  * @frame->sof have to be set.
635  * @frame->callback will be invoked with once the frame has been transmitted.
637  * If ring_stop() is called after the packet has been enqueued @frame->callback
640  * Return: Returns %-ESHUTDOWN if ring_stop has been called. Zero otherwise.
644 	WARN_ON(!ring->is_tx);  in tb_ring_tx()
653  * tb_ring_dma_device() - Return device used for DMA mapping
661 	return &ring->nhi->pdev->dev;  in tb_ring_dma_device()