1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef TARGET_CORE_INTERNAL_H
3#define TARGET_CORE_INTERNAL_H
4
5#include <linux/configfs.h>
6#include <linux/list.h>
7#include <linux/types.h>
8#include <target/target_core_base.h>
9
10#define TARGET_CORE_NAME_MAX_LEN 64
11#define TARGET_FABRIC_NAME_SIZE 32
12
13struct target_backend {
14 struct list_head list;
15
16 const struct target_backend_ops *ops;
17
18 struct config_item_type tb_dev_cit;
19 struct config_item_type tb_dev_attrib_cit;
20 struct config_item_type tb_dev_action_cit;
21 struct config_item_type tb_dev_pr_cit;
22 struct config_item_type tb_dev_wwn_cit;
23 struct config_item_type tb_dev_alua_tg_pt_gps_cit;
24 struct config_item_type tb_dev_stat_cit;
25};
26
27struct target_fabric_configfs {
28 atomic_t tf_access_cnt;
29 struct list_head tf_list;
30 struct config_group tf_group;
31 struct config_group tf_disc_group;
32 const struct target_core_fabric_ops *tf_ops;
33
34 struct config_item_type tf_discovery_cit;
35 struct config_item_type tf_wwn_cit;
36 struct config_item_type tf_wwn_fabric_stats_cit;
37 struct config_item_type tf_tpg_cit;
38 struct config_item_type tf_tpg_base_cit;
39 struct config_item_type tf_tpg_lun_cit;
40 struct config_item_type tf_tpg_port_cit;
41 struct config_item_type tf_tpg_port_stat_cit;
42 struct config_item_type tf_tpg_np_cit;
43 struct config_item_type tf_tpg_np_base_cit;
44 struct config_item_type tf_tpg_attrib_cit;
45 struct config_item_type tf_tpg_auth_cit;
46 struct config_item_type tf_tpg_param_cit;
47 struct config_item_type tf_tpg_nacl_cit;
48 struct config_item_type tf_tpg_nacl_base_cit;
49 struct config_item_type tf_tpg_nacl_attrib_cit;
50 struct config_item_type tf_tpg_nacl_auth_cit;
51 struct config_item_type tf_tpg_nacl_param_cit;
52 struct config_item_type tf_tpg_nacl_stat_cit;
53 struct config_item_type tf_tpg_mappedlun_cit;
54 struct config_item_type tf_tpg_mappedlun_stat_cit;
55};
56
57/* target_core_alua.c */
58extern struct t10_alua_lu_gp *default_lu_gp;
59
60/* target_core_device.c */
61int core_alloc_rtpi(struct se_lun *lun, struct se_device *dev);
62struct se_dev_entry *core_get_se_deve_from_rtpi(struct se_node_acl *, u16);
63void target_pr_kref_release(struct kref *);
64void core_free_device_list_for_node(struct se_node_acl *,
65 struct se_portal_group *);
66void core_update_device_list_access(u64, bool, struct se_node_acl *);
67struct se_dev_entry *target_nacl_find_deve(struct se_node_acl *, u64);
68int core_enable_device_list_for_node(struct se_lun *, struct se_lun_acl *,
69 u64, bool, struct se_node_acl *, struct se_portal_group *);
70void core_disable_device_list_for_node(struct se_lun *, struct se_dev_entry *,
71 struct se_node_acl *, struct se_portal_group *);
72void core_clear_lun_from_tpg(struct se_lun *, struct se_portal_group *);
73int core_dev_add_lun(struct se_portal_group *, struct se_device *,
74 struct se_lun *lun);
75void core_dev_del_lun(struct se_portal_group *, struct se_lun *);
76struct se_lun_acl *core_dev_init_initiator_node_lun_acl(struct se_portal_group *,
77 struct se_node_acl *, u64, int *);
78int core_dev_add_initiator_node_lun_acl(struct se_portal_group *,
79 struct se_lun_acl *, struct se_lun *lun, bool);
80int core_dev_del_initiator_node_lun_acl(struct se_lun *,
81 struct se_lun_acl *);
82void core_dev_free_initiator_node_lun_acl(struct se_portal_group *,
83 struct se_lun_acl *lacl);
84int core_dev_setup_virtual_lun0(void);
85void core_dev_release_virtual_lun0(void);
86struct se_device *target_alloc_device(struct se_hba *hba, const char *name);
87int target_configure_device(struct se_device *dev);
88void target_free_device(struct se_device *);
89int target_for_each_device(int (*fn)(struct se_device *dev, void *data),
90 void *data);
91
92/* target_core_configfs.c */
93extern struct configfs_item_operations target_core_dev_item_ops;
94void target_setup_backend_cits(struct target_backend *);
95
96/* target_core_fabric_configfs.c */
97int target_fabric_setup_cits(struct target_fabric_configfs *);
98
99/* target_core_fabric_lib.c */
100int target_get_pr_transport_id_len(struct se_node_acl *nacl,
101 struct t10_pr_registration *pr_reg, int *format_code);
102int target_get_pr_transport_id(struct se_node_acl *nacl,
103 struct t10_pr_registration *pr_reg, int *format_code,
104 unsigned char *buf);
105const char *target_parse_pr_out_transport_id(struct se_portal_group *tpg,
106 char *buf, u32 *out_tid_len, char **port_nexus_ptr);
107
108/* target_core_hba.c */
109struct se_hba *core_alloc_hba(const char *, u32, u32);
110int core_delete_hba(struct se_hba *);
111
112/* target_core_tmr.c */
113void core_tmr_abort_task(struct se_device *, struct se_tmr_req *,
114 struct se_session *);
115int core_tmr_lun_reset(struct se_device *, struct se_tmr_req *,
116 struct list_head *, struct se_cmd *);
117
118/* target_core_tpg.c */
119extern struct se_device *g_lun0_dev;
120
121struct se_node_acl *__core_tpg_get_initiator_node_acl(struct se_portal_group *tpg,
122 const char *);
123void core_tpg_add_node_to_devs(struct se_node_acl *, struct se_portal_group *,
124 struct se_lun *);
125void core_tpg_wait_for_nacl_pr_ref(struct se_node_acl *);
126struct se_lun *core_tpg_alloc_lun(struct se_portal_group *, u64);
127int core_tpg_add_lun(struct se_portal_group *, struct se_lun *,
128 bool, struct se_device *);
129void core_tpg_remove_lun(struct se_portal_group *, struct se_lun *);
130struct se_node_acl *core_tpg_add_initiator_node_acl(struct se_portal_group *tpg,
131 const char *initiatorname);
132void core_tpg_del_initiator_node_acl(struct se_node_acl *acl);
133
134/* target_core_transport.c */
135extern struct kmem_cache *se_tmr_req_cache;
136
137int init_se_kmem_caches(void);
138void release_se_kmem_caches(void);
139u32 scsi_get_new_index(scsi_index_t);
140void transport_subsystem_check_init(void);
141unsigned char *transport_dump_cmd_direction(struct se_cmd *);
142void transport_dump_dev_state(struct se_device *, char *, int *);
143void transport_dump_dev_info(struct se_device *, struct se_lun *,
144 unsigned long long, char *, int *);
145void transport_dump_vpd_proto_id(struct t10_vpd *, unsigned char *, int);
146int transport_dump_vpd_assoc(struct t10_vpd *, unsigned char *, int);
147int transport_dump_vpd_ident_type(struct t10_vpd *, unsigned char *, int);
148int transport_dump_vpd_ident(struct t10_vpd *, unsigned char *, int);
149void transport_clear_lun_ref(struct se_lun *);
150sense_reason_t target_cmd_size_check(struct se_cmd *cmd, unsigned int size);
151void target_qf_do_work(struct work_struct *work);
152bool target_check_wce(struct se_device *dev);
153bool target_check_fua(struct se_device *dev);
154void __target_execute_cmd(struct se_cmd *, bool);
155
156/* target_core_stat.c */
157void target_stat_setup_dev_default_groups(struct se_device *);
158void target_stat_setup_port_default_groups(struct se_lun *);
159void target_stat_setup_mappedlun_default_groups(struct se_lun_acl *);
160
161/* target_core_xcopy.c */
162extern struct se_portal_group xcopy_pt_tpg;
163
164/* target_core_configfs.c */
165#define DB_ROOT_LEN 4096
166#define DB_ROOT_DEFAULT "/var/target"
167#define DB_ROOT_PREFERRED "/etc/target"
168
169extern char db_root[];
170
171#endif /* TARGET_CORE_INTERNAL_H */
172