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4385df97fe
The reason for introducing two capabilities, one for the device itself
(cap 'mdev') and one for the parent device listing the available types
('mdev_types'), is that we should be able to do
'virsh nodedev-list --cap' not only for existing mdev devices but also
for devices that support creation of mdev devices, since one day libvirt
might be actually able to create the mdev devices in an automated way
(just like we do for NPIV/vHBA).
https://bugzilla.redhat.com/show_bug.cgi?id=1452072
Signed-off-by: Erik Skultety <eskultet@redhat.com>
220 lines
9.1 KiB
C
220 lines
9.1 KiB
C
/*
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* libvirt-nodedev.h
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* Summary: APIs for management of nodedevs
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* Description: Provides APIs for the management of nodedevs
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* Author: Daniel Veillard <veillard@redhat.com>
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*
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* Copyright (C) 2006-2014 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see
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* <http://www.gnu.org/licenses/>.
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*/
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#ifndef __VIR_LIBVIRT_NODEDEV_H__
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# define __VIR_LIBVIRT_NODEDEV_H__
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# ifndef __VIR_LIBVIRT_H_INCLUDES__
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# error "Don't include this file directly, only use libvirt/libvirt.h"
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# endif
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/**
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* virNodeDevice:
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*
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* A virNodeDevice contains a node (host) device details.
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*/
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typedef struct _virNodeDevice virNodeDevice;
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/**
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* virNodeDevicePtr:
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*
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* A virNodeDevicePtr is a pointer to a virNodeDevice structure. Get
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* one via virNodeDeviceLookupByName, or virNodeDeviceCreate. Be sure
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* to call virNodeDeviceFree when done using a virNodeDevicePtr obtained
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* from any of the above functions to avoid leaking memory.
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*/
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typedef virNodeDevice *virNodeDevicePtr;
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int virNodeNumOfDevices (virConnectPtr conn,
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const char *cap,
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unsigned int flags);
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int virNodeListDevices (virConnectPtr conn,
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const char *cap,
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char **const names,
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int maxnames,
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unsigned int flags);
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/*
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* virConnectListAllNodeDevices:
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*
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* Flags used to filter the returned node devices. Flags in each group
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* are exclusive. Currently only one group to filter the devices by cap
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* type.
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*/
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typedef enum {
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VIR_CONNECT_LIST_NODE_DEVICES_CAP_SYSTEM = 1 << 0, /* System capability */
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VIR_CONNECT_LIST_NODE_DEVICES_CAP_PCI_DEV = 1 << 1, /* PCI device */
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VIR_CONNECT_LIST_NODE_DEVICES_CAP_USB_DEV = 1 << 2, /* USB device */
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VIR_CONNECT_LIST_NODE_DEVICES_CAP_USB_INTERFACE = 1 << 3, /* USB interface */
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VIR_CONNECT_LIST_NODE_DEVICES_CAP_NET = 1 << 4, /* Network device */
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VIR_CONNECT_LIST_NODE_DEVICES_CAP_SCSI_HOST = 1 << 5, /* SCSI Host Bus Adapter */
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VIR_CONNECT_LIST_NODE_DEVICES_CAP_SCSI_TARGET = 1 << 6, /* SCSI Target */
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VIR_CONNECT_LIST_NODE_DEVICES_CAP_SCSI = 1 << 7, /* SCSI device */
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VIR_CONNECT_LIST_NODE_DEVICES_CAP_STORAGE = 1 << 8, /* Storage device */
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VIR_CONNECT_LIST_NODE_DEVICES_CAP_FC_HOST = 1 << 9, /* FC Host Bus Adapter */
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VIR_CONNECT_LIST_NODE_DEVICES_CAP_VPORTS = 1 << 10, /* Capable of vport */
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VIR_CONNECT_LIST_NODE_DEVICES_CAP_SCSI_GENERIC = 1 << 11, /* Capable of scsi_generic */
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VIR_CONNECT_LIST_NODE_DEVICES_CAP_DRM = 1 << 12, /* DRM device */
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VIR_CONNECT_LIST_NODE_DEVICES_CAP_MDEV_TYPES = 1 << 13, /* Capable of mediated devices */
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VIR_CONNECT_LIST_NODE_DEVICES_CAP_MDEV = 1 << 14, /* Mediated device */
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} virConnectListAllNodeDeviceFlags;
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int virConnectListAllNodeDevices (virConnectPtr conn,
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virNodeDevicePtr **devices,
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unsigned int flags);
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virNodeDevicePtr virNodeDeviceLookupByName (virConnectPtr conn,
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const char *name);
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virNodeDevicePtr virNodeDeviceLookupSCSIHostByWWN (virConnectPtr conn,
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const char *wwnn,
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const char *wwpn,
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unsigned int flags);
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const char * virNodeDeviceGetName (virNodeDevicePtr dev);
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const char * virNodeDeviceGetParent (virNodeDevicePtr dev);
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int virNodeDeviceNumOfCaps (virNodeDevicePtr dev);
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int virNodeDeviceListCaps (virNodeDevicePtr dev,
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char **const names,
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int maxnames);
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char * virNodeDeviceGetXMLDesc (virNodeDevicePtr dev,
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unsigned int flags);
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int virNodeDeviceRef (virNodeDevicePtr dev);
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int virNodeDeviceFree (virNodeDevicePtr dev);
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int virNodeDeviceDettach (virNodeDevicePtr dev);
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int virNodeDeviceDetachFlags(virNodeDevicePtr dev,
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const char *driverName,
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unsigned int flags);
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int virNodeDeviceReAttach (virNodeDevicePtr dev);
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int virNodeDeviceReset (virNodeDevicePtr dev);
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virNodeDevicePtr virNodeDeviceCreateXML (virConnectPtr conn,
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const char *xmlDesc,
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unsigned int flags);
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int virNodeDeviceDestroy (virNodeDevicePtr dev);
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/**
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* VIR_NODE_DEVICE_EVENT_CALLBACK:
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*
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* Used to cast the event specific callback into the generic one
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* for use for virConnectNodeDeviceEventRegisterAny()
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*/
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# define VIR_NODE_DEVICE_EVENT_CALLBACK(cb)((virConnectNodeDeviceEventGenericCallback)(cb))
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/**
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* virNodeDeviceEventID:
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*
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* An enumeration of supported eventId parameters for
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* virConnectNodeDeviceEventRegisterAny(). Each event id determines which
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* signature of callback function will be used.
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*/
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typedef enum {
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VIR_NODE_DEVICE_EVENT_ID_LIFECYCLE = 0, /* virConnectNodeDeviceEventLifecycleCallback */
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VIR_NODE_DEVICE_EVENT_ID_UPDATE = 1, /* virConnectNodeDeviceEventUpdateCallback */
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# ifdef VIR_ENUM_SENTINELS
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VIR_NODE_DEVICE_EVENT_ID_LAST
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/*
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* NB: this enum value will increase over time as new events are
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* added to the libvirt API. It reflects the last event ID supported
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* by this version of the libvirt API.
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*/
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# endif
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} virNodeDeviceEventID;
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/**
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* virConnectNodeDeviceEventGenericCallback:
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* @conn: the connection pointer
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* @dev: the node device pointer
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* @opaque: application specified data
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*
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* A generic node device event callback handler, for use with
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* virConnectNodeDeviceEventRegisterAny(). Specific events usually
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* have a customization with extra parameters, often with @opaque being
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* passed in a different parameter position; use
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* VIR_NODE_DEVICE_EVENT_CALLBACK() when registering an appropriate handler.
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*/
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typedef void (*virConnectNodeDeviceEventGenericCallback)(virConnectPtr conn,
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virNodeDevicePtr dev,
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void *opaque);
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/* Use VIR_NODE_DEVICE_EVENT_CALLBACK() to cast the 'cb' parameter */
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int virConnectNodeDeviceEventRegisterAny(virConnectPtr conn,
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virNodeDevicePtr dev, /* optional, to filter */
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int eventID,
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virConnectNodeDeviceEventGenericCallback cb,
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void *opaque,
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virFreeCallback freecb);
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int virConnectNodeDeviceEventDeregisterAny(virConnectPtr conn,
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int callbackID);
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/**
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* virNodeDeviceEventLifecycleType:
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*
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* a virNodeDeviceEventLifecycleType is emitted during node device
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* lifecycle events
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*/
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typedef enum {
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VIR_NODE_DEVICE_EVENT_CREATED = 0,
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VIR_NODE_DEVICE_EVENT_DELETED = 1,
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# ifdef VIR_ENUM_SENTINELS
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VIR_NODE_DEVICE_EVENT_LAST
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# endif
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} virNodeDeviceEventLifecycleType;
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/**
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* virConnectNodeDeviceEventLifecycleCallback:
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* @conn: connection object
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* @dev: node device on which the event occurred
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* @event: The specific virNodeDeviceEventLifeCycleType which occurred
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* @detail: contains some details on the reason of the event.
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* @opaque: application specified data
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*
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* This callback is called when a node device lifecycle action is performed,
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* like added or removed.
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*
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* The callback signature to use when registering for an event of type
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* VIR_NODE_DEVICE_EVENT_ID_LIFECYCLE with
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* virConnectNodeDeviceEventRegisterAny()
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*/
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typedef void (*virConnectNodeDeviceEventLifecycleCallback)(virConnectPtr conn,
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virNodeDevicePtr dev,
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int event,
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int detail,
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void *opaque);
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#endif /* __VIR_LIBVIRT_NODEDEV_H__ */
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