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28d3ad952f
E.g. % sg_map /dev/sg0 /dev/sda /dev/sg1 /dev/sr0 What the helper gets for /dev/sg0 is /dev/sda, it will be used by later patch.
89 lines
3.4 KiB
C
89 lines
3.4 KiB
C
/*
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* virscsi.h: helper APIs for managing host SCSI devices
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*
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* Copyright (C) 2013 Fujitsu, 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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* Authors:
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* Han Cheng <hanc.fnst@cn.fujitsu.com>
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*/
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#ifndef __VIR_SCSI_H__
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# define __VIR_SCSI_H__
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# include "internal.h"
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# include "virobject.h"
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typedef struct _virSCSIDevice virSCSIDevice;
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typedef virSCSIDevice *virSCSIDevicePtr;
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typedef struct _virSCSIDeviceList virSCSIDeviceList;
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typedef virSCSIDeviceList *virSCSIDeviceListPtr;
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char *virSCSIDeviceGetSgName(const char *adapter,
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unsigned int bus,
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unsigned int target,
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unsigned int unit);
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char *virSCSIDeviceGetDevName(const char *adapter,
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unsigned int bus,
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unsigned int target,
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unsigned int unit);
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virSCSIDevicePtr virSCSIDeviceNew(const char *adapter,
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unsigned int bus,
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unsigned int target,
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unsigned int unit,
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bool readonly);
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void virSCSIDeviceFree(virSCSIDevicePtr dev);
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void virSCSIDeviceSetUsedBy(virSCSIDevicePtr dev, const char *name);
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const char *virSCSIDeviceGetUsedBy(virSCSIDevicePtr dev);
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const char *virSCSIDeviceGetName(virSCSIDevicePtr dev);
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unsigned int virSCSIDeviceGetAdapter(virSCSIDevicePtr dev);
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unsigned int virSCSIDeviceGetBus(virSCSIDevicePtr dev);
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unsigned int virSCSIDeviceGetTarget(virSCSIDevicePtr dev);
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unsigned int virSCSIDeviceGetUnit(virSCSIDevicePtr dev);
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bool virSCSIDeviceGetReadonly(virSCSIDevicePtr dev);
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/*
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* Callback that will be invoked once for each file
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* associated with / used for SCSI host device access.
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*
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* Should return 0 if successfully processed, or
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* -1 to indicate error and abort iteration
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*/
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typedef int (*virSCSIDeviceFileActor)(virSCSIDevicePtr dev,
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const char *path, void *opaque);
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int virSCSIDeviceFileIterate(virSCSIDevicePtr dev,
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virSCSIDeviceFileActor actor,
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void *opaque);
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virSCSIDeviceListPtr virSCSIDeviceListNew(void);
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int virSCSIDeviceListAdd(virSCSIDeviceListPtr list,
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virSCSIDevicePtr dev);
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virSCSIDevicePtr virSCSIDeviceListGet(virSCSIDeviceListPtr list,
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int idx);
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int virSCSIDeviceListCount(virSCSIDeviceListPtr list);
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virSCSIDevicePtr virSCSIDeviceListSteal(virSCSIDeviceListPtr list,
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virSCSIDevicePtr dev);
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void virSCSIDeviceListDel(virSCSIDeviceListPtr list,
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virSCSIDevicePtr dev);
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virSCSIDevicePtr virSCSIDeviceListFind(virSCSIDeviceListPtr list,
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virSCSIDevicePtr dev);
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#endif /* __VIR_SCSI_H__ */
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