| #ifndef TARGET_CORE_FABRIC_H |
| #define TARGET_CORE_FABRIC_H |
| |
| struct target_core_fabric_ops { |
| struct configfs_subsystem *tf_subsys; |
| /* |
| * Optional to signal struct se_task->task_sg[] padding entries |
| * for scatterlist chaining using transport_do_task_sg_link(), |
| * disabled by default |
| */ |
| bool task_sg_chaining; |
| char *(*get_fabric_name)(void); |
| u8 (*get_fabric_proto_ident)(struct se_portal_group *); |
| char *(*tpg_get_wwn)(struct se_portal_group *); |
| u16 (*tpg_get_tag)(struct se_portal_group *); |
| u32 (*tpg_get_default_depth)(struct se_portal_group *); |
| u32 (*tpg_get_pr_transport_id)(struct se_portal_group *, |
| struct se_node_acl *, |
| struct t10_pr_registration *, int *, |
| unsigned char *); |
| u32 (*tpg_get_pr_transport_id_len)(struct se_portal_group *, |
| struct se_node_acl *, |
| struct t10_pr_registration *, int *); |
| char *(*tpg_parse_pr_out_transport_id)(struct se_portal_group *, |
| const char *, u32 *, char **); |
| int (*tpg_check_demo_mode)(struct se_portal_group *); |
| int (*tpg_check_demo_mode_cache)(struct se_portal_group *); |
| int (*tpg_check_demo_mode_write_protect)(struct se_portal_group *); |
| int (*tpg_check_prod_mode_write_protect)(struct se_portal_group *); |
| /* |
| * Optionally used by fabrics to allow demo-mode login, but not |
| * expose any TPG LUNs, and return 'not connected' in standard |
| * inquiry response |
| */ |
| int (*tpg_check_demo_mode_login_only)(struct se_portal_group *); |
| struct se_node_acl *(*tpg_alloc_fabric_acl)( |
| struct se_portal_group *); |
| void (*tpg_release_fabric_acl)(struct se_portal_group *, |
| struct se_node_acl *); |
| u32 (*tpg_get_inst_index)(struct se_portal_group *); |
| /* |
| * Optional function pointer for TCM to perform command map |
| * from TCM processing thread context, for those struct se_cmd |
| * initially allocated in interrupt context. |
| */ |
| int (*new_cmd_map)(struct se_cmd *); |
| /* |
| * Optional to release struct se_cmd and fabric dependent allocated |
| * I/O descriptor in transport_cmd_check_stop(). |
| * |
| * Returning 1 will signal a descriptor has been released. |
| * Returning 0 will signal a descriptor has not been released. |
| */ |
| int (*check_stop_free)(struct se_cmd *); |
| void (*release_cmd)(struct se_cmd *); |
| /* |
| * Called with spin_lock_bh(struct se_portal_group->session_lock held. |
| */ |
| int (*shutdown_session)(struct se_session *); |
| void (*close_session)(struct se_session *); |
| u32 (*sess_get_index)(struct se_session *); |
| /* |
| * Used only for SCSI fabrics that contain multi-value TransportIDs |
| * (like iSCSI). All other SCSI fabrics should set this to NULL. |
| */ |
| u32 (*sess_get_initiator_sid)(struct se_session *, |
| unsigned char *, u32); |
| int (*write_pending)(struct se_cmd *); |
| int (*write_pending_status)(struct se_cmd *); |
| void (*set_default_node_attributes)(struct se_node_acl *); |
| u32 (*get_task_tag)(struct se_cmd *); |
| int (*get_cmd_state)(struct se_cmd *); |
| int (*queue_data_in)(struct se_cmd *); |
| int (*queue_status)(struct se_cmd *); |
| int (*queue_tm_rsp)(struct se_cmd *); |
| u16 (*set_fabric_sense_len)(struct se_cmd *, u32); |
| u16 (*get_fabric_sense_len)(void); |
| /* |
| * fabric module calls for target_core_fabric_configfs.c |
| */ |
| struct se_wwn *(*fabric_make_wwn)(struct target_fabric_configfs *, |
| struct config_group *, const char *); |
| void (*fabric_drop_wwn)(struct se_wwn *); |
| struct se_portal_group *(*fabric_make_tpg)(struct se_wwn *, |
| struct config_group *, const char *); |
| void (*fabric_drop_tpg)(struct se_portal_group *); |
| int (*fabric_post_link)(struct se_portal_group *, |
| struct se_lun *); |
| void (*fabric_pre_unlink)(struct se_portal_group *, |
| struct se_lun *); |
| struct se_tpg_np *(*fabric_make_np)(struct se_portal_group *, |
| struct config_group *, const char *); |
| void (*fabric_drop_np)(struct se_tpg_np *); |
| struct se_node_acl *(*fabric_make_nodeacl)(struct se_portal_group *, |
| struct config_group *, const char *); |
| void (*fabric_drop_nodeacl)(struct se_node_acl *); |
| }; |
| |
| struct se_session *transport_init_session(void); |
| void __transport_register_session(struct se_portal_group *, |
| struct se_node_acl *, struct se_session *, void *); |
| void transport_register_session(struct se_portal_group *, |
| struct se_node_acl *, struct se_session *, void *); |
| void target_get_session(struct se_session *); |
| int target_put_session(struct se_session *); |
| void transport_free_session(struct se_session *); |
| void target_put_nacl(struct se_node_acl *); |
| void transport_deregister_session_configfs(struct se_session *); |
| void transport_deregister_session(struct se_session *); |
| |
| |
| void transport_init_se_cmd(struct se_cmd *, struct target_core_fabric_ops *, |
| struct se_session *, u32, int, int, unsigned char *); |
| int transport_lookup_cmd_lun(struct se_cmd *, u32); |
| int transport_generic_allocate_tasks(struct se_cmd *, unsigned char *); |
| void target_submit_cmd(struct se_cmd *, struct se_session *, unsigned char *, |
| unsigned char *, u32, u32, int, int, int); |
| int target_submit_tmr(struct se_cmd *se_cmd, struct se_session *se_sess, |
| unsigned char *sense, u32 unpacked_lun, |
| void *fabric_tmr_ptr, unsigned char tm_type, |
| gfp_t, unsigned int, int); |
| int transport_handle_cdb_direct(struct se_cmd *); |
| int transport_generic_handle_cdb_map(struct se_cmd *); |
| int transport_generic_handle_data(struct se_cmd *); |
| int transport_generic_map_mem_to_cmd(struct se_cmd *cmd, |
| struct scatterlist *, u32, struct scatterlist *, u32); |
| void transport_do_task_sg_chain(struct se_cmd *); |
| int transport_generic_new_cmd(struct se_cmd *); |
| |
| void transport_generic_process_write(struct se_cmd *); |
| |
| void transport_generic_free_cmd(struct se_cmd *, int); |
| |
| bool transport_wait_for_tasks(struct se_cmd *); |
| int transport_check_aborted_status(struct se_cmd *, int); |
| int transport_send_check_condition_and_sense(struct se_cmd *, u8, int); |
| |
| void target_get_sess_cmd(struct se_session *, struct se_cmd *, bool); |
| int target_put_sess_cmd(struct se_session *, struct se_cmd *); |
| void target_splice_sess_cmd_list(struct se_session *); |
| void target_wait_for_sess_cmds(struct se_session *, int); |
| |
| int core_alua_check_nonop_delay(struct se_cmd *); |
| |
| int core_tmr_alloc_req(struct se_cmd *, void *, u8, gfp_t); |
| void core_tmr_release_req(struct se_tmr_req *); |
| int transport_generic_handle_tmr(struct se_cmd *); |
| void transport_generic_request_failure(struct se_cmd *); |
| int transport_lookup_tmr_lun(struct se_cmd *, u32); |
| |
| struct se_node_acl *core_tpg_check_initiator_node_acl(struct se_portal_group *, |
| unsigned char *); |
| void core_tpg_clear_object_luns(struct se_portal_group *); |
| struct se_node_acl *core_tpg_add_initiator_node_acl(struct se_portal_group *, |
| struct se_node_acl *, const char *, u32); |
| int core_tpg_del_initiator_node_acl(struct se_portal_group *, |
| struct se_node_acl *, int); |
| int core_tpg_set_initiator_node_queue_depth(struct se_portal_group *, |
| unsigned char *, u32, int); |
| int core_tpg_register(struct target_core_fabric_ops *, struct se_wwn *, |
| struct se_portal_group *, void *, int); |
| int core_tpg_deregister(struct se_portal_group *); |
| |
| /* SAS helpers */ |
| u8 sas_get_fabric_proto_ident(struct se_portal_group *); |
| u32 sas_get_pr_transport_id(struct se_portal_group *, struct se_node_acl *, |
| struct t10_pr_registration *, int *, unsigned char *); |
| u32 sas_get_pr_transport_id_len(struct se_portal_group *, struct se_node_acl *, |
| struct t10_pr_registration *, int *); |
| char *sas_parse_pr_out_transport_id(struct se_portal_group *, const char *, |
| u32 *, char **); |
| |
| /* FC helpers */ |
| u8 fc_get_fabric_proto_ident(struct se_portal_group *); |
| u32 fc_get_pr_transport_id(struct se_portal_group *, struct se_node_acl *, |
| struct t10_pr_registration *, int *, unsigned char *); |
| u32 fc_get_pr_transport_id_len(struct se_portal_group *, struct se_node_acl *, |
| struct t10_pr_registration *, int *); |
| char *fc_parse_pr_out_transport_id(struct se_portal_group *, const char *, |
| u32 *, char **); |
| |
| /* iSCSI helpers */ |
| u8 iscsi_get_fabric_proto_ident(struct se_portal_group *); |
| u32 iscsi_get_pr_transport_id(struct se_portal_group *, struct se_node_acl *, |
| struct t10_pr_registration *, int *, unsigned char *); |
| u32 iscsi_get_pr_transport_id_len(struct se_portal_group *, struct se_node_acl *, |
| struct t10_pr_registration *, int *); |
| char *iscsi_parse_pr_out_transport_id(struct se_portal_group *, const char *, |
| u32 *, char **); |
| |
| #endif /* TARGET_CORE_FABRICH */ |