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xenbus.c
(5.79 KB)
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xenbus_if.m
(2.28 KB)
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xenbusb.c
(26.13 KB)
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xenbusb.h
(9.68 KB)
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xenbusb_back.c
(9.83 KB)
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xenbusb_front.c
(6.27 KB)
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xenbusb_if.m
(3.94 KB)
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xenbusvar.h
(6.89 KB)
Editing: xenbusb_if.m
#- # Copyright (c) 2010 Spectra Logic Corporation # All rights reserved. # # Redistribution and use in source and binary forms, with or without # modification, are permitted provided that the following conditions # are met: # 1. Redistributions of source code must retain the above copyright # notice, this list of conditions, and the following disclaimer, # without modification. # 2. Redistributions in binary form must reproduce at minimum a disclaimer # substantially similar to the "NO WARRANTY" disclaimer below # ("Disclaimer") and any redistribution must be conditioned upon # including a substantially similar Disclaimer requirement for further # binary redistribution. # # NO WARRANTY # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT # HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, # STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING # IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE # POSSIBILITY OF SUCH DAMAGES. # # $FreeBSD$ # #include <sys/bus.h> #include <sys/lock.h> #include <sys/sx.h> #include <sys/taskqueue.h> #include <xen/xenstore/xenstorevar.h> #include <xen/xenbus/xenbusb.h> INTERFACE xenbusb; /** * \brief Enumerate all devices of the given type on this bus. * * \param _dev NewBus device_t for this XenBus (front/back) bus instance. * \param _type String indicating the device sub-tree (e.g. "vfb", "vif") * to enumerate. * * \return On success, 0. Otherwise an errno value indicating the * type of failure. * * Devices that are found should be entered into the NewBus hierarchy via * xenbusb_add_device(). xenbusb_add_device() ignores duplicate detects * and ignores duplicate devices, so it can be called unconditionally * for any device found in the XenStore. */ METHOD int enumerate_type { device_t _dev; const char *_type; }; /** * \brief Determine and store the XenStore path for the other end of * a split device whose local end is represented by ivars. * * If successful, the xd_otherend_path field of the child's instance * variables must be updated. * * \param _dev NewBus device_t for this XenBus (front/back) bus instance. * \param _ivars Instance variables from the XenBus child device for * which to perform this function. * * \return On success, 0. Otherwise an errno value indicating the * type of failure. */ METHOD int get_otherend_node { device_t _dev; struct xenbus_device_ivars *_ivars; } /** * \brief Handle a XenStore change detected in the peer tree of a child * device of the bus. * * \param _bus NewBus device_t for this XenBus (front/back) bus instance. * \param _child NewBus device_t for the child device whose peer XenStore * tree has changed. * \param _state The current state of the peer. */ METHOD void otherend_changed { device_t _bus; device_t _child; enum xenbus_state _state; } DEFAULT xenbusb_otherend_changed; /** * \brief Handle a XenStore change detected in the local tree of a child * device of the bus. * * \param _bus NewBus device_t for this XenBus (front/back) bus instance. * \param _child NewBus device_t for the child device whose peer XenStore * tree has changed. * \param _path The tree relative sub-path to the modified node. The empty * string indicates the root of the tree was destroyed. */ METHOD void localend_changed { device_t _bus; device_t _child; const char * _path; } DEFAULT xenbusb_localend_changed;
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