/* SPDX-License-Identifier: GPL-2.0 */
#ifndef TARGET_CORE_IBLOCK_H
#define TARGET_CORE_IBLOCK_H

#include <linux/atomic.h>
#include <linux/refcount.h>
#include <linux/blkdev.h>
#include <target/target_core_base.h>

#define IBLOCK_VERSION          "4.0"

#define IBLOCK_MAX_CDBS         16

struct iblock_req {
        refcount_t pending;
        atomic_t ib_bio_err_cnt;
} ____cacheline_aligned;

#define IBDF_HAS_UDEV_PATH              0x01

#define IBD_PLUGF_PLUGGED               0x01

struct iblock_dev_plug {
        struct se_dev_plug se_plug;
        struct blk_plug blk_plug;
        unsigned long flags;
};

struct iblock_dev {
        struct se_device dev;
        unsigned char ibd_udev_path[SE_UDEV_PATH_LEN];
        u32     ibd_flags;
        struct bio_set  ibd_bio_set;
        struct block_device *ibd_bd;
        struct file *ibd_bdev_file;
        bool ibd_readonly;
        bool ibd_exclusive;
        struct iblock_dev_plug *ibd_plug;
} ____cacheline_aligned;

#endif /* TARGET_CORE_IBLOCK_H */