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 */