1/* SPDX-License-Identifier: GPL-2.0 */
 2#ifndef TARGET_CORE_IBLOCK_H
 3#define TARGET_CORE_IBLOCK_H
 4
 5#include <linux/atomic.h>
 6#include <linux/refcount.h>
 7#include <linux/blkdev.h>
 8#include <target/target_core_base.h>
 9
10#define IBLOCK_VERSION		"4.0"
11
12#define IBLOCK_MAX_CDBS		16
13
14struct iblock_req {
15	refcount_t pending;
16	atomic_t ib_bio_err_cnt;
17} ____cacheline_aligned;
18
19#define IBDF_HAS_UDEV_PATH		0x01
20
21#define IBD_PLUGF_PLUGGED		0x01
22
23struct iblock_dev_plug {
24	struct se_dev_plug se_plug;
25	struct blk_plug blk_plug;
26	unsigned long flags;
27};
28
29struct iblock_dev {
30	struct se_device dev;
31	unsigned char ibd_udev_path[SE_UDEV_PATH_LEN];
32	u32	ibd_flags;
33	struct bio_set	ibd_bio_set;
34	struct block_device *ibd_bd;
35	struct file *ibd_bdev_file;
36	bool ibd_readonly;
37	struct iblock_dev_plug *ibd_plug;
38} ____cacheline_aligned;
39
40#endif /* TARGET_CORE_IBLOCK_H */