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37 lines
1.1 KiB
37 lines
1.1 KiB
/*
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* Handler for virtio-blk I/O
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*
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* Copyright (C) 2022 Bytedance Inc. and/or its affiliates. All rights reserved.
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*
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* Author:
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* Xie Yongji <xieyongji@bytedance.com>
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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 VIRTIO_BLK_HANDLER_H
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#define VIRTIO_BLK_HANDLER_H
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#include "system/block-backend.h"
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#define VIRTIO_BLK_SECTOR_BITS 9
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#define VIRTIO_BLK_SECTOR_SIZE (1ULL << VIRTIO_BLK_SECTOR_BITS)
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#define VIRTIO_BLK_MAX_DISCARD_SECTORS 32768
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#define VIRTIO_BLK_MAX_WRITE_ZEROES_SECTORS 32768
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typedef struct {
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BlockBackend *blk;
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char *serial;
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uint32_t logical_block_size;
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bool writable;
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} VirtioBlkHandler;
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int coroutine_fn virtio_blk_process_req(VirtioBlkHandler *handler,
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struct iovec *in_iov,
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struct iovec *out_iov,
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unsigned int in_num,
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unsigned int out_num);
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#endif /* VIRTIO_BLK_HANDLER_H */
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