drivers/target/target_core_internal.h

   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
  13 struct 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
  27 struct 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_wwn_param_cit;
  38         struct config_item_type tf_tpg_cit;
  39         struct config_item_type tf_tpg_base_cit;
  40         struct config_item_type tf_tpg_lun_cit;
  41         struct config_item_type tf_tpg_port_cit;
  42         struct config_item_type tf_tpg_port_stat_cit;
  43         struct config_item_type tf_tpg_np_cit;
  44         struct config_item_type tf_tpg_np_base_cit;
  45         struct config_item_type tf_tpg_attrib_cit;
  46         struct config_item_type tf_tpg_auth_cit;
  47         struct config_item_type tf_tpg_param_cit;
  48         struct config_item_type tf_tpg_nacl_cit;
  49         struct config_item_type tf_tpg_nacl_base_cit;
  50         struct config_item_type tf_tpg_nacl_attrib_cit;
  51         struct config_item_type tf_tpg_nacl_auth_cit;
  52         struct config_item_type tf_tpg_nacl_param_cit;
  53         struct config_item_type tf_tpg_nacl_stat_cit;
  54         struct config_item_type tf_tpg_mappedlun_cit;
  55         struct config_item_type tf_tpg_mappedlun_stat_cit;
  56 };
  57
  58 /* target_core_alua.c */
  59 extern struct t10_alua_lu_gp *default_lu_gp;
  60
  61 /* target_core_device.c */
  62 int     core_alloc_rtpi(struct se_lun *lun, struct se_device *dev);
  63 struct se_dev_entry *core_get_se_deve_from_rtpi(struct se_node_acl *, u16);
  64 void    target_pr_kref_release(struct kref *);
  65 void    core_free_device_list_for_node(struct se_node_acl *,
  66                 struct se_portal_group *);
  67 void    core_update_device_list_access(u64, bool, struct se_node_acl *);
  68 struct se_dev_entry *target_nacl_find_deve(struct se_node_acl *, u64);
  69 int     core_enable_device_list_for_node(struct se_lun *, struct se_lun_acl *,
  70                 u64, bool, struct se_node_acl *, struct se_portal_group *);
  71 void    core_disable_device_list_for_node(struct se_lun *, struct se_dev_entry *,
  72                 struct se_node_acl *, struct se_portal_group *);
  73 void    core_clear_lun_from_tpg(struct se_lun *, struct se_portal_group *);
  74 int     core_dev_add_lun(struct se_portal_group *, struct se_device *,
  75                 struct se_lun *lun);
  76 void    core_dev_del_lun(struct se_portal_group *, struct se_lun *);
  77 struct se_lun_acl *core_dev_init_initiator_node_lun_acl(struct se_portal_group *,
  78                 struct se_node_acl *, u64, int *);
  79 int     core_dev_add_initiator_node_lun_acl(struct se_portal_group *,
  80                 struct se_lun_acl *, struct se_lun *lun, bool);
  81 int     core_dev_del_initiator_node_lun_acl(struct se_lun *,
  82                 struct se_lun_acl *);
  83 void    core_dev_free_initiator_node_lun_acl(struct se_portal_group *,
  84                 struct se_lun_acl *lacl);
  85 int     core_dev_setup_virtual_lun0(void);
  86 void    core_dev_release_virtual_lun0(void);
  87 struct se_device *target_alloc_device(struct se_hba *hba, const char *name);
  88 int     target_configure_device(struct se_device *dev);
  89 void    target_free_device(struct se_device *);
  90 int     target_for_each_device(int (*fn)(struct se_device *dev, void *data),
  91                                void *data);
  92
  93 /* target_core_configfs.c */
  94 extern struct configfs_item_operations target_core_dev_item_ops;
  95 void    target_setup_backend_cits(struct target_backend *);
  96
  97 /* target_core_fabric_configfs.c */
  98 int     target_fabric_setup_cits(struct target_fabric_configfs *);
  99
 100 /* target_core_fabric_lib.c */
 101 int     target_get_pr_transport_id_len(struct se_node_acl *nacl,
 102                 struct t10_pr_registration *pr_reg, int *format_code);
 103 int     target_get_pr_transport_id(struct se_node_acl *nacl,
 104                 struct t10_pr_registration *pr_reg, int *format_code,
 105                 unsigned char *buf);
 106 const char *target_parse_pr_out_transport_id(struct se_portal_group *tpg,
 107                 char *buf, u32 *out_tid_len, char **port_nexus_ptr);
 108
 109 /* target_core_hba.c */
 110 struct se_hba *core_alloc_hba(const char *, u32, u32);
 111 int     core_delete_hba(struct se_hba *);
 112
 113 /* target_core_tmr.c */
 114 void    core_tmr_abort_task(struct se_device *, struct se_tmr_req *,
 115                         struct se_session *);
 116 int     core_tmr_lun_reset(struct se_device *, struct se_tmr_req *,
 117                 struct list_head *, struct se_cmd *);
 118
 119 /* target_core_tpg.c */
 120 extern struct se_device *g_lun0_dev;
 121
 122 struct se_node_acl *__core_tpg_get_initiator_node_acl(struct se_portal_group *tpg,
 123                 const char *);
 124 void    core_tpg_add_node_to_devs(struct se_node_acl *, struct se_portal_group *,
 125                                   struct se_lun *);
 126 void    core_tpg_wait_for_nacl_pr_ref(struct se_node_acl *);
 127 struct se_lun *core_tpg_alloc_lun(struct se_portal_group *, u64);
 128 int     core_tpg_add_lun(struct se_portal_group *, struct se_lun *,
 129                 bool, struct se_device *);
 130 void core_tpg_remove_lun(struct se_portal_group *, struct se_lun *);
 131 struct se_node_acl *core_tpg_add_initiator_node_acl(struct se_portal_group *tpg,
 132                 const char *initiatorname);
 133 void core_tpg_del_initiator_node_acl(struct se_node_acl *acl);
 134
 135 /* target_core_transport.c */
 136 extern struct kmem_cache *se_tmr_req_cache;
 137
 138 int     init_se_kmem_caches(void);
 139 void    release_se_kmem_caches(void);
 140 u32     scsi_get_new_index(scsi_index_t);
 141 void    transport_subsystem_check_init(void);
 142 void    transport_uninit_session(struct se_session *);
 143 unsigned char *transport_dump_cmd_direction(struct se_cmd *);
 144 void    transport_dump_dev_state(struct se_device *, char *, int *);
 145 void    transport_dump_dev_info(struct se_device *, struct se_lun *,
 146                 unsigned long long, char *, int *);
 147 void    transport_dump_vpd_proto_id(struct t10_vpd *, unsigned char *, int);
 148 int     transport_dump_vpd_assoc(struct t10_vpd *, unsigned char *, int);
 149 int     transport_dump_vpd_ident_type(struct t10_vpd *, unsigned char *, int);
 150 int     transport_dump_vpd_ident(struct t10_vpd *, unsigned char *, int);
 151 void    transport_clear_lun_ref(struct se_lun *);
 152 sense_reason_t  target_cmd_size_check(struct se_cmd *cmd, unsigned int size);
 153 void    target_qf_do_work(struct work_struct *work);
 154 void    target_do_delayed_work(struct work_struct *work);
 155 bool    target_check_wce(struct se_device *dev);
 156 bool    target_check_fua(struct se_device *dev);
 157 void    __target_execute_cmd(struct se_cmd *, bool);
 158 void    target_queued_submit_work(struct work_struct *work);
 159
 160 /* target_core_stat.c */
 161 void    target_stat_setup_dev_default_groups(struct se_device *);
 162 void    target_stat_setup_port_default_groups(struct se_lun *);
 163 void    target_stat_setup_mappedlun_default_groups(struct se_lun_acl *);
 164
 165 /* target_core_xcopy.c */
 166 extern struct se_portal_group xcopy_pt_tpg;
 167
 168 /* target_core_configfs.c */
 169 #define DB_ROOT_LEN             4096
 170 #define DB_ROOT_DEFAULT         "/var/target"
 171 #define DB_ROOT_PREFERRED       "/etc/target"
 172
 173 extern char db_root[];
 174
 175 #endif /* TARGET_CORE_INTERNAL_H */