nvmet.h (94a39d61f80fcd679debda11e1ca02b88d90e67e) nvmet.h (013b7ebe5a0d70e2a02fd225174595e79c591b3e)
1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * Copyright (c) 2015-2016 HGST, a Western Digital Company.
4 */
5
6#ifndef _NVMET_H
7#define _NVMET_H
8

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18#include <linux/configfs.h>
19#include <linux/rcupdate.h>
20#include <linux/blkdev.h>
21#include <linux/radix-tree.h>
22
23#define NVMET_ASYNC_EVENTS 4
24#define NVMET_ERROR_LOG_SLOTS 128
25#define NVMET_NO_ERROR_LOC ((u16)-1)
1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * Copyright (c) 2015-2016 HGST, a Western Digital Company.
4 */
5
6#ifndef _NVMET_H
7#define _NVMET_H
8

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18#include <linux/configfs.h>
19#include <linux/rcupdate.h>
20#include <linux/blkdev.h>
21#include <linux/radix-tree.h>
22
23#define NVMET_ASYNC_EVENTS 4
24#define NVMET_ERROR_LOG_SLOTS 128
25#define NVMET_NO_ERROR_LOC ((u16)-1)
26#define NVMET_DEFAULT_CTRL_MODEL "Linux"
26
27/*
28 * Supported optional AENs:
29 */
30#define NVMET_AEN_CFG_OPTIONAL \
31 (NVME_AEN_CFG_NS_ATTR | NVME_AEN_CFG_ANA_CHANGE)
32#define NVMET_DISC_AEN_CFG_OPTIONAL \
33 (NVME_AEN_CFG_DISC_CHANGE)

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197 struct device *p2p_client;
198 struct radix_tree_root p2p_ns_map;
199
200 spinlock_t error_lock;
201 u64 err_counter;
202 struct nvme_error_slot slots[NVMET_ERROR_LOG_SLOTS];
203};
204
27
28/*
29 * Supported optional AENs:
30 */
31#define NVMET_AEN_CFG_OPTIONAL \
32 (NVME_AEN_CFG_NS_ATTR | NVME_AEN_CFG_ANA_CHANGE)
33#define NVMET_DISC_AEN_CFG_OPTIONAL \
34 (NVME_AEN_CFG_DISC_CHANGE)

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198 struct device *p2p_client;
199 struct radix_tree_root p2p_ns_map;
200
201 spinlock_t error_lock;
202 u64 err_counter;
203 struct nvme_error_slot slots[NVMET_ERROR_LOG_SLOTS];
204};
205
206struct nvmet_subsys_model {
207 struct rcu_head rcuhead;
208 char number[];
209};
210
205struct nvmet_subsys {
206 enum nvme_subsys_type type;
207
208 struct mutex lock;
209 struct kref ref;
210
211 struct list_head namespaces;
212 unsigned int nr_namespaces;

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224 u64 ver;
225 u64 serial;
226 char *subsysnqn;
227
228 struct config_group group;
229
230 struct config_group namespaces_group;
231 struct config_group allowed_hosts_group;
211struct nvmet_subsys {
212 enum nvme_subsys_type type;
213
214 struct mutex lock;
215 struct kref ref;
216
217 struct list_head namespaces;
218 unsigned int nr_namespaces;

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230 u64 ver;
231 u64 serial;
232 char *subsysnqn;
233
234 struct config_group group;
235
236 struct config_group namespaces_group;
237 struct config_group allowed_hosts_group;
238
239 struct nvmet_subsys_model __rcu *model;
232};
233
234static inline struct nvmet_subsys *to_subsys(struct config_item *item)
235{
236 return container_of(to_config_group(item), struct nvmet_subsys, group);
237}
238
239static inline struct nvmet_subsys *namespaces_to_subsys(

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241
242static inline struct nvmet_subsys *to_subsys(struct config_item *item)
243{
244 return container_of(to_config_group(item), struct nvmet_subsys, group);
245}
246
247static inline struct nvmet_subsys *namespaces_to_subsys(

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