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