xref: /freebsd/sys/dev/virtio/pci/virtio_pci_if.m (revision a03411e84728e9b267056fd31c7d1d9d1dc1b01e) 
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
27#include <sys/bus.h>
28#include <machine/bus.h>
29
30INTERFACE virtio_pci;
31
32HEADER {
33struct virtqueue;
34struct vtpci_interrupt;
35};
36
37METHOD uint8_t read_isr {
38	device_t	dev;
39};
40
41METHOD uint16_t get_vq_size {
42	device_t	dev;
43	int		idx;
44};
45
46METHOD bus_size_t get_vq_notify_off {
47	device_t	dev;
48	int		idx;
49};
50
51METHOD void set_vq {
52	device_t		dev;
53	struct virtqueue	*vq;
54};
55
56METHOD void disable_vq {
57	device_t		 dev;
58	int			 idx;
59};
60
61METHOD int register_cfg_msix {
62	device_t	dev;
63	struct vtpci_interrupt *intr;
64};
65
66METHOD int register_vq_msix {
67	device_t		dev;
68	int			idx;
69	struct vtpci_interrupt	*intr;
70};
71