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81 lines
2.4 KiB
81 lines
2.4 KiB
/* SPDX-License-Identifier: GPL-2.0-or-later */ |
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/* |
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* RDMA Network Block Driver |
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* |
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* Copyright (c) 2014 - 2018 ProfitBricks GmbH. All rights reserved. |
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* Copyright (c) 2018 - 2019 1&1 IONOS Cloud GmbH. All rights reserved. |
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* Copyright (c) 2019 - 2020 1&1 IONOS SE. All rights reserved. |
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*/ |
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#ifndef RNBD_SRV_H |
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#define RNBD_SRV_H |
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#include <linux/types.h> |
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#include <linux/idr.h> |
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#include <linux/kref.h> |
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#include <rtrs.h> |
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#include "rnbd-proto.h" |
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#include "rnbd-log.h" |
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struct rnbd_srv_session { |
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/* Entry inside global sess_list */ |
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struct list_head list; |
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struct rtrs_srv *rtrs; |
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char sessname[NAME_MAX]; |
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int queue_depth; |
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struct bio_set sess_bio_set; |
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struct xarray index_idr; |
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/* List of struct rnbd_srv_sess_dev */ |
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struct list_head sess_dev_list; |
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struct mutex lock; |
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u8 ver; |
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}; |
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struct rnbd_srv_dev { |
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/* Entry inside global dev_list */ |
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struct list_head list; |
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struct kobject dev_kobj; |
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struct kobject *dev_sessions_kobj; |
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struct kref kref; |
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char id[NAME_MAX]; |
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/* List of rnbd_srv_sess_dev structs */ |
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struct list_head sess_dev_list; |
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struct mutex lock; |
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int open_write_cnt; |
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}; |
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/* Structure which binds N devices and N sessions */ |
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struct rnbd_srv_sess_dev { |
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/* Entry inside rnbd_srv_dev struct */ |
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struct list_head dev_list; |
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/* Entry inside rnbd_srv_session struct */ |
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struct list_head sess_list; |
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struct rnbd_dev *rnbd_dev; |
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struct rnbd_srv_session *sess; |
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struct rnbd_srv_dev *dev; |
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struct kobject kobj; |
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u32 device_id; |
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bool keep_id; |
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fmode_t open_flags; |
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struct kref kref; |
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struct completion *destroy_comp; |
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char pathname[NAME_MAX]; |
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enum rnbd_access_mode access_mode; |
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}; |
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void rnbd_srv_sess_dev_force_close(struct rnbd_srv_sess_dev *sess_dev, |
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struct kobj_attribute *attr); |
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/* rnbd-srv-sysfs.c */ |
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int rnbd_srv_create_dev_sysfs(struct rnbd_srv_dev *dev, |
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struct block_device *bdev, |
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const char *dir_name); |
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void rnbd_srv_destroy_dev_sysfs(struct rnbd_srv_dev *dev); |
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int rnbd_srv_create_dev_session_sysfs(struct rnbd_srv_sess_dev *sess_dev); |
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void rnbd_srv_destroy_dev_session_sysfs(struct rnbd_srv_sess_dev *sess_dev); |
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int rnbd_srv_create_sysfs_files(void); |
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void rnbd_srv_destroy_sysfs_files(void); |
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void rnbd_destroy_sess_dev(struct rnbd_srv_sess_dev *sess_dev, bool keep_id); |
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#endif /* RNBD_SRV_H */
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