1 /* SPDX-License-Identifier: GPL-2.0-or-later */
3 * RDMA Network Block Driver
5 * Copyright (c) 2014 - 2018 ProfitBricks GmbH. All rights reserved.
6 * Copyright (c) 2018 - 2019 1&1 IONOS Cloud GmbH. All rights reserved.
7 * Copyright (c) 2019 - 2020 1&1 IONOS SE. All rights reserved.
12 #include <linux/types.h>
13 #include <linux/idr.h>
14 #include <linux/kref.h>
17 #include "rnbd-proto.h"
20 struct rnbd_srv_session {
21 /* Entry inside global sess_list */
22 struct list_head list;
23 struct rtrs_srv *rtrs;
24 char sessname[NAME_MAX];
26 struct bio_set sess_bio_set;
28 struct xarray index_idr;
29 /* List of struct rnbd_srv_sess_dev */
30 struct list_head sess_dev_list;
36 /* Entry inside global dev_list */
37 struct list_head list;
38 struct kobject dev_kobj;
39 struct kobject *dev_sessions_kobj;
42 /* List of rnbd_srv_sess_dev structs */
43 struct list_head sess_dev_list;
48 /* Structure which binds N devices and N sessions */
49 struct rnbd_srv_sess_dev {
50 /* Entry inside rnbd_srv_dev struct */
51 struct list_head dev_list;
52 /* Entry inside rnbd_srv_session struct */
53 struct list_head sess_list;
54 struct rnbd_dev *rnbd_dev;
55 struct rnbd_srv_session *sess;
56 struct rnbd_srv_dev *dev;
61 struct completion *destroy_comp;
62 char pathname[NAME_MAX];
63 enum rnbd_access_mode access_mode;
66 /* rnbd-srv-sysfs.c */
68 int rnbd_srv_create_dev_sysfs(struct rnbd_srv_dev *dev,
69 struct block_device *bdev,
70 const char *dir_name);
71 void rnbd_srv_destroy_dev_sysfs(struct rnbd_srv_dev *dev);
72 int rnbd_srv_create_dev_session_sysfs(struct rnbd_srv_sess_dev *sess_dev);
73 void rnbd_srv_destroy_dev_session_sysfs(struct rnbd_srv_sess_dev *sess_dev);
74 int rnbd_srv_create_sysfs_files(void);
75 void rnbd_srv_destroy_sysfs_files(void);
76 void rnbd_destroy_sess_dev(struct rnbd_srv_sess_dev *sess_dev);
78 #endif /* RNBD_SRV_H */