virtio_bus_if.m

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    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: releng/8.4/sys/dev/virtio/virtio_bus_if.m 227652 2011-11-18 05:43:43Z grehan $
   27 
   28 #include <sys/bus.h>
   29 #include <machine/bus.h>
   30 
   31 INTERFACE virtio_bus;
   32 
   33 HEADER {
   34 struct vq_alloc_info;
   35 };
   36 
   37 METHOD uint64_t negotiate_features {
   38         device_t        dev;
   39         uint64_t        child_features;
   40 };
   41 
   42 METHOD int with_feature {
   43         device_t        dev;
   44         uint64_t        feature;
   45 };
   46 
   47 METHOD int alloc_virtqueues {
   48         device_t        dev;
   49         int             flags;
   50         int             nvqs;
   51         struct vq_alloc_info *info;
   52 };
   53 HEADER {
   54 #define VIRTIO_ALLOC_VQS_DISABLE_MSIX 0x1
   55 };
   56 
   57 METHOD int setup_intr {
   58         device_t        dev;
   59         enum intr_type  type;
   60 };
   61 
   62 METHOD void stop {
   63         device_t        dev;
   64 };
   65 
   66 METHOD int reinit {
   67         device_t        dev;
   68         uint64_t        features;
   69 };
   70 
   71 METHOD void reinit_complete {
   72         device_t        dev;
   73 };
   74 
   75 METHOD void notify_vq {
   76         device_t        dev;
   77         uint16_t        queue;
   78 };
   79 
   80 METHOD void read_device_config {
   81         device_t        dev;
   82         bus_size_t      offset;
   83         void            *dst;
   84         int             len;
   85 };
   86 
   87 METHOD void write_device_config {
   88         device_t        dev;
   89         bus_size_t      offset;
   90         void            *src;
   91         int             len;
   92 };

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FreeBSD/Linux Kernel Cross Reference sys/dev/virtio/virtio_bus_if.m

FreeBSD/Linux Kernel Cross Reference
sys/dev/virtio/virtio_bus_if.m