95fd260f0a
drive_get_next() is basically a bad idea. It returns the "next" block backend of a certain interface type. "Next" means bus=0,unit=N, where subsequent calls count N up from zero, per interface type. This lets you define unit numbers implicitly by execution order. If the order changes, or new calls appear "in the middle", unit numbers change. ABI break. Hard to spot in review. The previous commits eliminated all uses. Drop the function. Cc: Kevin Wolf <kwolf@redhat.com> Cc: Hanna Reitz <hreitz@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20211117163409.3587705-14-armbru@redhat.com> Reviewed-by: Hanna Reitz <hreitz@redhat.com>
61 lines
1.8 KiB
C
61 lines
1.8 KiB
C
/*
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* QEMU host block devices
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*
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* Copyright (c) 2003-2008 Fabrice Bellard
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or
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* later. See the COPYING file in the top-level directory.
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*/
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#ifndef BLOCKDEV_H
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#define BLOCKDEV_H
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#include "block/block.h"
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#include "qemu/queue.h"
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void blockdev_mark_auto_del(BlockBackend *blk);
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void blockdev_auto_del(BlockBackend *blk);
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typedef enum {
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IF_DEFAULT = -1, /* for use with drive_add() only */
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/*
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* IF_NONE must be zero, because we want MachineClass member
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* block_default_type to default-initialize to IF_NONE
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*/
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IF_NONE = 0,
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IF_IDE, IF_SCSI, IF_FLOPPY, IF_PFLASH, IF_MTD, IF_SD, IF_VIRTIO, IF_XEN,
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IF_COUNT
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} BlockInterfaceType;
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struct DriveInfo {
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BlockInterfaceType type;
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int bus;
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int unit;
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int auto_del; /* see blockdev_mark_auto_del() */
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bool is_default; /* Added by default_drive() ? */
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int media_cd;
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QemuOpts *opts;
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QTAILQ_ENTRY(DriveInfo) next;
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};
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DriveInfo *blk_legacy_dinfo(BlockBackend *blk);
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DriveInfo *blk_set_legacy_dinfo(BlockBackend *blk, DriveInfo *dinfo);
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BlockBackend *blk_by_legacy_dinfo(DriveInfo *dinfo);
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void override_max_devs(BlockInterfaceType type, int max_devs);
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DriveInfo *drive_get(BlockInterfaceType type, int bus, int unit);
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void drive_mark_claimed_by_board(void);
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void drive_check_orphaned(void);
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DriveInfo *drive_get_by_index(BlockInterfaceType type, int index);
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int drive_get_max_bus(BlockInterfaceType type);
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int drive_get_max_devs(BlockInterfaceType type);
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QemuOpts *drive_def(const char *optstr);
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QemuOpts *drive_add(BlockInterfaceType type, int index, const char *file,
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const char *optstr);
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DriveInfo *drive_new(QemuOpts *arg, BlockInterfaceType block_default_type,
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Error **errp);
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#endif
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