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 with_feature { 42 device_t dev; 43 uint64_t feature; 44}; 45 46METHOD int alloc_virtqueues { 47 device_t dev; 48 int flags; 49 int nvqs; 50 struct vq_alloc_info *info; 51}; 52HEADER { 53#define VIRTIO_ALLOC_VQS_DISABLE_MSIX 0x1 54}; 55 56METHOD int setup_intr { 57 device_t dev; 58 lwkt_serialize_t slz; 59}; 60 61METHOD void stop { 62 device_t dev; 63}; 64 65METHOD int reinit { 66 device_t dev; 67 uint64_t features; 68}; 69 70METHOD void reinit_complete { 71 device_t dev; 72}; 73 74METHOD void notify_vq { 75 device_t dev; 76 uint16_t queue; 77}; 78 79METHOD void read_device_config { 80 device_t dev; 81 bus_size_t offset; 82 void *dst; 83 int len; 84}; 85 86METHOD void write_device_config { 87 device_t dev; 88 bus_size_t offset; 89 void *src; 90 int len; 91}; 92