xref: /linux/drivers/target/target_core_internal.h (revision ca55b2fef3a9373fcfc30f82fd26bc7fccbda732) 
1 #ifndef TARGET_CORE_INTERNAL_H
2 #define TARGET_CORE_INTERNAL_H
3 
4 #define TARGET_CORE_NAME_MAX_LEN	64
5 #define TARGET_FABRIC_NAME_SIZE		32
6 
7 struct target_backend {
8 	struct list_head list;
9 
10 	const struct target_backend_ops *ops;
11 
12 	struct config_item_type tb_dev_cit;
13 	struct config_item_type tb_dev_attrib_cit;
14 	struct config_item_type tb_dev_pr_cit;
15 	struct config_item_type tb_dev_wwn_cit;
16 	struct config_item_type tb_dev_alua_tg_pt_gps_cit;
17 	struct config_item_type tb_dev_stat_cit;
18 };
19 
20 struct target_fabric_configfs {
21 	atomic_t		tf_access_cnt;
22 	struct list_head	tf_list;
23 	struct config_group	tf_group;
24 	struct config_group	tf_disc_group;
25 	struct config_group	*tf_default_groups[2];
26 	const struct target_core_fabric_ops *tf_ops;
27 
28 	struct config_item_type tf_discovery_cit;
29 	struct config_item_type	tf_wwn_cit;
30 	struct config_item_type tf_wwn_fabric_stats_cit;
31 	struct config_item_type tf_tpg_cit;
32 	struct config_item_type tf_tpg_base_cit;
33 	struct config_item_type tf_tpg_lun_cit;
34 	struct config_item_type tf_tpg_port_cit;
35 	struct config_item_type tf_tpg_port_stat_cit;
36 	struct config_item_type tf_tpg_np_cit;
37 	struct config_item_type tf_tpg_np_base_cit;
38 	struct config_item_type tf_tpg_attrib_cit;
39 	struct config_item_type tf_tpg_auth_cit;
40 	struct config_item_type tf_tpg_param_cit;
41 	struct config_item_type tf_tpg_nacl_cit;
42 	struct config_item_type tf_tpg_nacl_base_cit;
43 	struct config_item_type tf_tpg_nacl_attrib_cit;
44 	struct config_item_type tf_tpg_nacl_auth_cit;
45 	struct config_item_type tf_tpg_nacl_param_cit;
46 	struct config_item_type tf_tpg_nacl_stat_cit;
47 	struct config_item_type tf_tpg_mappedlun_cit;
48 	struct config_item_type tf_tpg_mappedlun_stat_cit;
49 };
50 
51 /* target_core_alua.c */
52 extern struct t10_alua_lu_gp *default_lu_gp;
53 
54 /* target_core_device.c */
55 extern struct mutex g_device_mutex;
56 extern struct list_head g_device_list;
57 
58 int	core_alloc_rtpi(struct se_lun *lun, struct se_device *dev);
59 struct se_dev_entry *core_get_se_deve_from_rtpi(struct se_node_acl *, u16);
60 void	target_pr_kref_release(struct kref *);
61 void	core_free_device_list_for_node(struct se_node_acl *,
62 		struct se_portal_group *);
63 void	core_update_device_list_access(u64, u32, struct se_node_acl *);
64 struct se_dev_entry *target_nacl_find_deve(struct se_node_acl *, u64);
65 int	core_enable_device_list_for_node(struct se_lun *, struct se_lun_acl *,
66 		u64, u32, struct se_node_acl *, struct se_portal_group *);
67 void	core_disable_device_list_for_node(struct se_lun *, struct se_dev_entry *,
68 		struct se_node_acl *, struct se_portal_group *);
69 void	core_clear_lun_from_tpg(struct se_lun *, struct se_portal_group *);
70 int	core_dev_add_lun(struct se_portal_group *, struct se_device *,
71 		struct se_lun *lun);
72 void	core_dev_del_lun(struct se_portal_group *, struct se_lun *);
73 struct se_lun_acl *core_dev_init_initiator_node_lun_acl(struct se_portal_group *,
74 		struct se_node_acl *, u64, int *);
75 int	core_dev_add_initiator_node_lun_acl(struct se_portal_group *,
76 		struct se_lun_acl *, struct se_lun *lun, u32);
77 int	core_dev_del_initiator_node_lun_acl(struct se_lun *,
78 		struct se_lun_acl *);
79 void	core_dev_free_initiator_node_lun_acl(struct se_portal_group *,
80 		struct se_lun_acl *lacl);
81 int	core_dev_setup_virtual_lun0(void);
82 void	core_dev_release_virtual_lun0(void);
83 struct se_device *target_alloc_device(struct se_hba *hba, const char *name);
84 int	target_configure_device(struct se_device *dev);
85 void	target_free_device(struct se_device *);
86 
87 /* target_core_configfs.c */
88 void	target_setup_backend_cits(struct target_backend *);
89 
90 /* target_core_fabric_lib.c */
91 int	target_get_pr_transport_id_len(struct se_node_acl *nacl,
92 		struct t10_pr_registration *pr_reg, int *format_code);
93 int	target_get_pr_transport_id(struct se_node_acl *nacl,
94 		struct t10_pr_registration *pr_reg, int *format_code,
95 		unsigned char *buf);
96 const char *target_parse_pr_out_transport_id(struct se_portal_group *tpg,
97 		const char *buf, u32 *out_tid_len, char **port_nexus_ptr);
98 
99 /* target_core_hba.c */
100 struct se_hba *core_alloc_hba(const char *, u32, u32);
101 int	core_delete_hba(struct se_hba *);
102 
103 /* target_core_tmr.c */
104 void	core_tmr_abort_task(struct se_device *, struct se_tmr_req *,
105 			struct se_session *);
106 int	core_tmr_lun_reset(struct se_device *, struct se_tmr_req *,
107 		struct list_head *, struct se_cmd *);
108 
109 /* target_core_tpg.c */
110 extern struct se_device *g_lun0_dev;
111 
112 struct se_node_acl *__core_tpg_get_initiator_node_acl(struct se_portal_group *tpg,
113 		const char *);
114 void	core_tpg_add_node_to_devs(struct se_node_acl *, struct se_portal_group *,
115 				  struct se_lun *);
116 void	core_tpg_wait_for_nacl_pr_ref(struct se_node_acl *);
117 struct se_lun *core_tpg_alloc_lun(struct se_portal_group *, u64);
118 int	core_tpg_add_lun(struct se_portal_group *, struct se_lun *,
119 		u32, struct se_device *);
120 void core_tpg_remove_lun(struct se_portal_group *, struct se_lun *);
121 struct se_node_acl *core_tpg_add_initiator_node_acl(struct se_portal_group *tpg,
122 		const char *initiatorname);
123 void core_tpg_del_initiator_node_acl(struct se_node_acl *acl);
124 
125 /* target_core_transport.c */
126 extern struct kmem_cache *se_tmr_req_cache;
127 
128 int	init_se_kmem_caches(void);
129 void	release_se_kmem_caches(void);
130 u32	scsi_get_new_index(scsi_index_t);
131 void	transport_subsystem_check_init(void);
132 void	transport_cmd_finish_abort(struct se_cmd *, int);
133 unsigned char *transport_dump_cmd_direction(struct se_cmd *);
134 void	transport_dump_dev_state(struct se_device *, char *, int *);
135 void	transport_dump_dev_info(struct se_device *, struct se_lun *,
136 		unsigned long long, char *, int *);
137 void	transport_dump_vpd_proto_id(struct t10_vpd *, unsigned char *, int);
138 int	transport_dump_vpd_assoc(struct t10_vpd *, unsigned char *, int);
139 int	transport_dump_vpd_ident_type(struct t10_vpd *, unsigned char *, int);
140 int	transport_dump_vpd_ident(struct t10_vpd *, unsigned char *, int);
141 bool	target_stop_cmd(struct se_cmd *cmd, unsigned long *flags);
142 void	transport_clear_lun_ref(struct se_lun *);
143 void	transport_send_task_abort(struct se_cmd *);
144 sense_reason_t	target_cmd_size_check(struct se_cmd *cmd, unsigned int size);
145 void	target_qf_do_work(struct work_struct *work);
146 bool	target_check_wce(struct se_device *dev);
147 bool	target_check_fua(struct se_device *dev);
148 
149 /* target_core_stat.c */
150 void	target_stat_setup_dev_default_groups(struct se_device *);
151 void	target_stat_setup_port_default_groups(struct se_lun *);
152 void	target_stat_setup_mappedlun_default_groups(struct se_lun_acl *);
153 
154 /* target_core_xcopy.c */
155 extern struct se_portal_group xcopy_pt_tpg;
156 
157 #endif /* TARGET_CORE_INTERNAL_H */
158