xref: /freebsd/sys/dev/pci/pci_if.m (revision 49b49cda41feabe3439f7318e8bf40e3896c7bf4) 
1#-
2# Copyright (c) 1998 Doug Rabson
3# All rights reserved.
4#
5# Redistribution and use in source and binary forms, with or without
6# modification, are permitted provided that the following conditions
7# are met:
8# 1. Redistributions of source code must retain the above copyright
9#    notice, this list of conditions and the following disclaimer.
10# 2. Redistributions in binary form must reproduce the above copyright
11#    notice, this list of conditions and the following disclaimer in the
12#    documentation and/or other materials provided with the distribution.
13#
14# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24# SUCH DAMAGE.
25#
26# $FreeBSD$
27#
28
29#include <sys/bus.h>
30
31INTERFACE pci;
32
33CODE {
34	static int
35	null_msi_count(device_t dev, device_t child)
36	{
37		return (0);
38	}
39
40	static int
41	null_msix_bar(device_t dev, device_t child)
42	{
43		return (-1);
44	}
45
46	static device_t
47	null_create_iov_child(device_t bus, device_t pf, uint16_t rid,
48	    uint16_t vid, uint16_t did)
49	{
50		device_printf(bus, "PCI_IOV not implemented on this bus.\n");
51		return (NULL);
52	}
53};
54
55HEADER {
56	struct nvlist;
57}
58
59
60METHOD u_int32_t read_config {
61	device_t	dev;
62	device_t	child;
63	int		reg;
64	int		width;
65};
66
67METHOD void write_config {
68	device_t	dev;
69	device_t	child;
70	int		reg;
71	u_int32_t	val;
72	int		width;
73};
74
75METHOD int get_powerstate {
76	device_t	dev;
77	device_t	child;
78};
79
80METHOD int set_powerstate {
81	device_t	dev;
82	device_t	child;
83	int		state;
84};
85
86METHOD int get_vpd_ident {
87	device_t	dev;
88	device_t	child;
89	const char	**identptr;
90};
91
92METHOD int get_vpd_readonly {
93	device_t	dev;
94	device_t	child;
95	const char	*kw;
96	const char	**vptr;
97};
98
99METHOD int enable_busmaster {
100	device_t	dev;
101	device_t	child;
102};
103
104METHOD int disable_busmaster {
105	device_t	dev;
106	device_t	child;
107};
108
109METHOD int enable_io {
110	device_t	dev;
111	device_t	child;
112	int		space;
113};
114
115METHOD int disable_io {
116	device_t	dev;
117	device_t	child;
118	int		space;
119};
120
121METHOD int assign_interrupt {
122	device_t	dev;
123	device_t	child;
124};
125
126METHOD int find_cap {
127	device_t	dev;
128	device_t	child;
129	int		capability;
130	int		*capreg;
131};
132
133METHOD int find_extcap {
134	device_t	dev;
135	device_t	child;
136	int		capability;
137	int		*capreg;
138};
139
140METHOD int find_htcap {
141	device_t	dev;
142	device_t	child;
143	int		capability;
144	int		*capreg;
145};
146
147METHOD int alloc_msi {
148	device_t	dev;
149	device_t	child;
150	int		*count;
151};
152
153METHOD int alloc_msix {
154	device_t	dev;
155	device_t	child;
156	int		*count;
157};
158
159METHOD void enable_msi {
160	device_t	dev;
161	device_t	child;
162	uint64_t	address;
163	uint16_t	data;
164};
165
166METHOD void enable_msix {
167	device_t	dev;
168	device_t	child;
169	u_int		index;
170	uint64_t	address;
171	uint32_t	data;
172};
173
174METHOD void disable_msi {
175	device_t	dev;
176	device_t	child;
177};
178
179METHOD int remap_msix {
180	device_t	dev;
181	device_t	child;
182	int		count;
183	const u_int	*vectors;
184};
185
186METHOD int release_msi {
187	device_t	dev;
188	device_t	child;
189};
190
191METHOD int msi_count {
192	device_t	dev;
193	device_t	child;
194} DEFAULT null_msi_count;
195
196METHOD int msix_count {
197	device_t	dev;
198	device_t	child;
199} DEFAULT null_msi_count;
200
201METHOD int msix_pba_bar {
202	device_t	dev;
203	device_t	child;
204} DEFAULT null_msix_bar;
205
206METHOD int msix_table_bar {
207	device_t	dev;
208	device_t	child;
209} DEFAULT null_msix_bar;
210
211METHOD uint16_t get_rid {
212	device_t	dev;
213	device_t	child;
214};
215
216METHOD void child_added {
217	device_t	dev;
218	device_t	child;
219};
220
221METHOD int iov_attach {
222	device_t	dev;
223	device_t	child;
224	struct nvlist	*pf_schema;
225	struct nvlist	*vf_schema;
226};
227
228METHOD int iov_detach {
229	device_t	dev;
230	device_t	child;
231};
232
233METHOD device_t create_iov_child {
234	device_t bus;
235	device_t pf;
236	uint16_t rid;
237	uint16_t vid;
238	uint16_t did;
239} DEFAULT null_create_iov_child;
240