/* SPDX-License-Identifier: GPL-2.0 */

  #ifndef TARGET_CORE_INTERNAL_H
  #define TARGET_CORE_INTERNAL_H

  #include <linux/configfs.h>
  #include <linux/list.h>
  #include <linux/types.h>
  #include <target/target_core_base.h>

  #define TARGET_CORE_NAME_MAX_LEN	64
  #define TARGET_FABRIC_NAME_SIZE		32

  struct target_backend {
  	struct list_head list;
  
  	const struct target_backend_ops *ops;
  
  	struct config_item_type tb_dev_cit;
  	struct config_item_type tb_dev_attrib_cit;

  	struct config_item_type tb_dev_action_cit;

  	struct config_item_type tb_dev_pr_cit;
  	struct config_item_type tb_dev_wwn_cit;
  	struct config_item_type tb_dev_alua_tg_pt_gps_cit;
  	struct config_item_type tb_dev_stat_cit;
  };

  struct target_fabric_configfs {
  	atomic_t		tf_access_cnt;
  	struct list_head	tf_list;
  	struct config_group	tf_group;
  	struct config_group	tf_disc_group;

  	const struct target_core_fabric_ops *tf_ops;
  
  	struct config_item_type tf_discovery_cit;
  	struct config_item_type	tf_wwn_cit;
  	struct config_item_type tf_wwn_fabric_stats_cit;
  	struct config_item_type tf_tpg_cit;
  	struct config_item_type tf_tpg_base_cit;
  	struct config_item_type tf_tpg_lun_cit;
  	struct config_item_type tf_tpg_port_cit;
  	struct config_item_type tf_tpg_port_stat_cit;
  	struct config_item_type tf_tpg_np_cit;
  	struct config_item_type tf_tpg_np_base_cit;
  	struct config_item_type tf_tpg_attrib_cit;
  	struct config_item_type tf_tpg_auth_cit;
  	struct config_item_type tf_tpg_param_cit;
  	struct config_item_type tf_tpg_nacl_cit;
  	struct config_item_type tf_tpg_nacl_base_cit;
  	struct config_item_type tf_tpg_nacl_attrib_cit;
  	struct config_item_type tf_tpg_nacl_auth_cit;
  	struct config_item_type tf_tpg_nacl_param_cit;
  	struct config_item_type tf_tpg_nacl_stat_cit;
  	struct config_item_type tf_tpg_mappedlun_cit;
  	struct config_item_type tf_tpg_mappedlun_stat_cit;
  };

  /* target_core_alua.c */
  extern struct t10_alua_lu_gp *default_lu_gp;

  /* target_core_device.c */

  int	core_alloc_rtpi(struct se_lun *lun, struct se_device *dev);

  struct se_dev_entry *core_get_se_deve_from_rtpi(struct se_node_acl *, u16);

  void	target_pr_kref_release(struct kref *);
  void	core_free_device_list_for_node(struct se_node_acl *,

  		struct se_portal_group *);

  void	core_update_device_list_access(u64, bool, struct se_node_acl *);

  struct se_dev_entry *target_nacl_find_deve(struct se_node_acl *, u64);

  int	core_enable_device_list_for_node(struct se_lun *, struct se_lun_acl *,

  		u64, bool, struct se_node_acl *, struct se_portal_group *);

  void	core_disable_device_list_for_node(struct se_lun *, struct se_dev_entry *,
  		struct se_node_acl *, struct se_portal_group *);

  void	core_clear_lun_from_tpg(struct se_lun *, struct se_portal_group *);

  int	core_dev_add_lun(struct se_portal_group *, struct se_device *,
  		struct se_lun *lun);

  void	core_dev_del_lun(struct se_portal_group *, struct se_lun *);

  struct se_lun_acl *core_dev_init_initiator_node_lun_acl(struct se_portal_group *,

  		struct se_node_acl *, u64, int *);

  int	core_dev_add_initiator_node_lun_acl(struct se_portal_group *,

  		struct se_lun_acl *, struct se_lun *lun, bool);

  int	core_dev_del_initiator_node_lun_acl(struct se_lun *,
  		struct se_lun_acl *);

  void	core_dev_free_initiator_node_lun_acl(struct se_portal_group *,
  		struct se_lun_acl *lacl);
  int	core_dev_setup_virtual_lun0(void);
  void	core_dev_release_virtual_lun0(void);

  struct se_device *target_alloc_device(struct se_hba *hba, const char *name);
  int	target_configure_device(struct se_device *dev);
  void	target_free_device(struct se_device *);

  int	target_for_each_device(int (*fn)(struct se_device *dev, void *data),
  			       void *data);

  /* target_core_configfs.c */

  extern struct configfs_item_operations target_core_dev_item_ops;

  void	target_setup_backend_cits(struct target_backend *);

  /* target_core_fabric_configfs.c */
  int	target_fabric_setup_cits(struct target_fabric_configfs *);

  /* target_core_fabric_lib.c */
  int	target_get_pr_transport_id_len(struct se_node_acl *nacl,
  		struct t10_pr_registration *pr_reg, int *format_code);
  int	target_get_pr_transport_id(struct se_node_acl *nacl,
  		struct t10_pr_registration *pr_reg, int *format_code,
  		unsigned char *buf);
  const char *target_parse_pr_out_transport_id(struct se_portal_group *tpg,

  		char *buf, u32 *out_tid_len, char **port_nexus_ptr);

  /* target_core_hba.c */
  struct se_hba *core_alloc_hba(const char *, u32, u32);
  int	core_delete_hba(struct se_hba *);
  
  /* target_core_tmr.c */

  void	core_tmr_abort_task(struct se_device *, struct se_tmr_req *,
  			struct se_session *);

  int	core_tmr_lun_reset(struct se_device *, struct se_tmr_req *,
  		struct list_head *, struct se_cmd *);
  
  /* target_core_tpg.c */
  extern struct se_device *g_lun0_dev;
  
  struct se_node_acl *__core_tpg_get_initiator_node_acl(struct se_portal_group *tpg,
  		const char *);

  void	core_tpg_add_node_to_devs(struct se_node_acl *, struct se_portal_group *,
  				  struct se_lun *);

  void	core_tpg_wait_for_nacl_pr_ref(struct se_node_acl *);

  struct se_lun *core_tpg_alloc_lun(struct se_portal_group *, u64);

  int	core_tpg_add_lun(struct se_portal_group *, struct se_lun *,

  		bool, struct se_device *);

  void core_tpg_remove_lun(struct se_portal_group *, struct se_lun *);

  struct se_node_acl *core_tpg_add_initiator_node_acl(struct se_portal_group *tpg,
  		const char *initiatorname);
  void core_tpg_del_initiator_node_acl(struct se_node_acl *acl);

  
  /* target_core_transport.c */
  extern struct kmem_cache *se_tmr_req_cache;
  
  int	init_se_kmem_caches(void);
  void	release_se_kmem_caches(void);
  u32	scsi_get_new_index(scsi_index_t);
  void	transport_subsystem_check_init(void);

  int	transport_cmd_finish_abort(struct se_cmd *);

  unsigned char *transport_dump_cmd_direction(struct se_cmd *);
  void	transport_dump_dev_state(struct se_device *, char *, int *);
  void	transport_dump_dev_info(struct se_device *, struct se_lun *,
  		unsigned long long, char *, int *);
  void	transport_dump_vpd_proto_id(struct t10_vpd *, unsigned char *, int);
  int	transport_dump_vpd_assoc(struct t10_vpd *, unsigned char *, int);
  int	transport_dump_vpd_ident_type(struct t10_vpd *, unsigned char *, int);
  int	transport_dump_vpd_ident(struct t10_vpd *, unsigned char *, int);

  void	transport_clear_lun_ref(struct se_lun *);

  void	transport_send_task_abort(struct se_cmd *);

  sense_reason_t	target_cmd_size_check(struct se_cmd *cmd, unsigned int size);

  void	target_qf_do_work(struct work_struct *work);

  bool	target_check_wce(struct se_device *dev);
  bool	target_check_fua(struct se_device *dev);

  void	__target_execute_cmd(struct se_cmd *, bool);

  
  /* target_core_stat.c */

  void	target_stat_setup_dev_default_groups(struct se_device *);

  void	target_stat_setup_port_default_groups(struct se_lun *);
  void	target_stat_setup_mappedlun_default_groups(struct se_lun_acl *);

  /* target_core_xcopy.c */
  extern struct se_portal_group xcopy_pt_tpg;

  /* target_core_configfs.c */
  #define DB_ROOT_LEN		4096
  #define	DB_ROOT_DEFAULT		"/var/target"

  #define	DB_ROOT_PREFERRED	"/etc/target"

  
  extern char db_root[];

  #endif /* TARGET_CORE_INTERNAL_H */