drivers/cdx/cdx.h

1 /* SPDX-License-Identifier: GPL-2.0
5  * Copyright (C) 2022-2023, Advanced Micro Devices, Inc.
14  * struct cdx_dev_params - CDX device parameters
15  * @cdx: CDX controller associated with the device
16  * @parent: Associated CDX Bus device
17  * @vendor: Vendor ID for CDX device
18  * @device: Device ID for CDX device
19  * @subsys_vendor: Sub vendor ID for CDX device
20  * @subsys_device: Sub device ID for CDX device
21  * @bus_num: Bus number for this CDX device
22  * @dev_num: Device number for this device
25  * @req_id: Requestor ID associated with CDX device
26  * @class: Class of the CDX Device
27  * @revision: Revision of the CDX device
28  * @msi_dev_id: MSI device ID associated with CDX device
29  * @num_msi: Number of MSI's supported by the device
33 	struct device *parent;
35 	u16 device;  member
50  * cdx_register_controller - Register a CDX controller and its ports
51  *		on the CDX bus.
54  * Return: -errno on failure, 0 on success.
59  * cdx_unregister_controller - Unregister a CDX controller
65  * cdx_device_add - Add a CDX device. This function adds a CDX device
66  *		on the CDX bus as per the device parameters provided
68  *		Linux generic device.
69  * @dev_params: device parameters associated with the device to be created.
71  * Return: -errno on failure, 0 on success.
76  * cdx_bus_add - Add a CDX bus. This function adds a bus on the CDX bus
77  *		subsystem. It creates a CDX device for the corresponding bus and
78  *		also registers an associated Linux generic device.
82  * Return: associated Linux generic device pointer on success or NULL on failure.
84 struct device *cdx_bus_add(struct cdx_controller *cdx, u8 bus_num);
87  * cdx_msi_domain_init - Init the CDX bus MSI domain.
88  * @dev: Device of the CDX bus controller
90  * Return: CDX MSI domain, NULL on failure
92 struct irq_domain *cdx_msi_domain_init(struct device *dev);