1#- 2# Copyright (c) 2011, Bryan Venteicher <bryanv@daemoninthecloset.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: src/sys/dev/virtio/virtio_bus_if.m,v 1.1 2011/11/18 05:43:43 grehan Exp $ 27 28#include <sys/bus.h> 29 30INTERFACE virtio_bus; 31 32HEADER { 33struct vq_alloc_info; 34}; 35 36METHOD uint64_t negotiate_features { 37 device_t dev; 38 uint64_t child_features; 39}; 40 41METHOD int bind_intr { 42 device_t dev; 43 uint irq; 44 int what; 45 driver_intr_t handler; 46 void *arg; 47}; 48 49METHOD int unbind_intr { 50 device_t dev; 51 int what; 52}; 53 54METHOD int with_feature { 55 device_t dev; 56 uint64_t feature; 57}; 58 59METHOD int intr_count { 60 device_t dev; 61}; 62 63METHOD int intr_alloc { 64 device_t dev; 65 int *cnt; 66 int use_config; 67 int *cpus; 68}; 69 70METHOD int intr_release { 71 device_t dev; 72}; 73 74METHOD int alloc_virtqueues { 75 device_t dev; 76 int nvqs; 77 struct vq_alloc_info *info; 78}; 79 80METHOD int setup_intr { 81 device_t dev; 82 uint irq; 83 lwkt_serialize_t slz; 84}; 85 86METHOD int teardown_intr { 87 device_t dev; 88 uint irq; 89}; 90 91METHOD void stop { 92 device_t dev; 93}; 94 95METHOD int reinit { 96 device_t dev; 97 uint64_t features; 98}; 99 100METHOD void reinit_complete { 101 device_t dev; 102}; 103 104METHOD void notify_vq { 105 device_t dev; 106 uint16_t queue; 107}; 108 109METHOD void read_device_config { 110 device_t dev; 111 bus_size_t offset; 112 void *dst; 113 int len; 114}; 115 116METHOD void write_device_config { 117 device_t dev; 118 bus_size_t offset; 119 void *src; 120 int len; 121}; 122