xref: /freebsd/sys/dev/virtio/pci/virtio_pci_if.m (revision 9768746b) 
1#-
2# Copyright (c) 2017, Bryan Venteicher <bryanv@FreeBSD.org>
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#include <sys/bus.h>
29#include <machine/bus.h>
30
31INTERFACE virtio_pci;
32
33HEADER {
34struct virtqueue;
35struct vtpci_interrupt;
36};
37
38METHOD uint8_t read_isr {
39	device_t	dev;
40};
41
42METHOD uint16_t get_vq_size {
43	device_t	dev;
44	int		idx;
45};
46
47METHOD bus_size_t get_vq_notify_off {
48	device_t	dev;
49	int		idx;
50};
51
52METHOD void set_vq {
53	device_t		dev;
54	struct virtqueue	*vq;
55};
56
57METHOD void disable_vq {
58	device_t		 dev;
59	int			 idx;
60};
61
62METHOD int register_cfg_msix {
63	device_t	dev;
64	struct vtpci_interrupt *intr;
65};
66
67METHOD int register_vq_msix {
68	device_t		dev;
69	int			idx;
70	struct vtpci_interrupt	*intr;
71};
72