| 1 | /* Defined in target_core_configfs.h */ |
| 2 | struct target_fabric_configfs; |
| 3 | |
| 4 | struct target_core_fabric_ops { |
| 5 | struct configfs_subsystem *tf_subsys; |
| 6 | /* |
| 7 | * Optional to signal struct se_task->task_sg[] padding entries |
| 8 | * for scatterlist chaining using transport_do_task_sg_link(), |
| 9 | * disabled by default |
| 10 | */ |
| 11 | bool task_sg_chaining; |
| 12 | char *(*get_fabric_name)(void); |
| 13 | u8 (*get_fabric_proto_ident)(struct se_portal_group *); |
| 14 | char *(*tpg_get_wwn)(struct se_portal_group *); |
| 15 | u16 (*tpg_get_tag)(struct se_portal_group *); |
| 16 | u32 (*tpg_get_default_depth)(struct se_portal_group *); |
| 17 | u32 (*tpg_get_pr_transport_id)(struct se_portal_group *, |
| 18 | struct se_node_acl *, |
| 19 | struct t10_pr_registration *, int *, |
| 20 | unsigned char *); |
| 21 | u32 (*tpg_get_pr_transport_id_len)(struct se_portal_group *, |
| 22 | struct se_node_acl *, |
| 23 | struct t10_pr_registration *, int *); |
| 24 | char *(*tpg_parse_pr_out_transport_id)(struct se_portal_group *, |
| 25 | const char *, u32 *, char **); |
| 26 | int (*tpg_check_demo_mode)(struct se_portal_group *); |
| 27 | int (*tpg_check_demo_mode_cache)(struct se_portal_group *); |
| 28 | int (*tpg_check_demo_mode_write_protect)(struct se_portal_group *); |
| 29 | int (*tpg_check_prod_mode_write_protect)(struct se_portal_group *); |
| 30 | /* |
| 31 | * Optionally used by fabrics to allow demo-mode login, but not |
| 32 | * expose any TPG LUNs, and return 'not connected' in standard |
| 33 | * inquiry response |
| 34 | */ |
| 35 | int (*tpg_check_demo_mode_login_only)(struct se_portal_group *); |
| 36 | struct se_node_acl *(*tpg_alloc_fabric_acl)( |
| 37 | struct se_portal_group *); |
| 38 | void (*tpg_release_fabric_acl)(struct se_portal_group *, |
| 39 | struct se_node_acl *); |
| 40 | u32 (*tpg_get_inst_index)(struct se_portal_group *); |
| 41 | /* |
| 42 | * Optional function pointer for TCM to perform command map |
| 43 | * from TCM processing thread context, for those struct se_cmd |
| 44 | * initially allocated in interrupt context. |
| 45 | */ |
| 46 | int (*new_cmd_map)(struct se_cmd *); |
| 47 | /* |
| 48 | * Optional to release struct se_cmd and fabric dependent allocated |
| 49 | * I/O descriptor in transport_cmd_check_stop(). |
| 50 | * |
| 51 | * Returning 1 will signal a descriptor has been released. |
| 52 | * Returning 0 will signal a descriptor has not been released. |
| 53 | */ |
| 54 | int (*check_stop_free)(struct se_cmd *); |
| 55 | /* |
| 56 | * Optional check for active I/O shutdown |
| 57 | */ |
| 58 | int (*check_release_cmd)(struct se_cmd *); |
| 59 | void (*release_cmd)(struct se_cmd *); |
| 60 | /* |
| 61 | * Called with spin_lock_bh(struct se_portal_group->session_lock held. |
| 62 | */ |
| 63 | int (*shutdown_session)(struct se_session *); |
| 64 | void (*close_session)(struct se_session *); |
| 65 | void (*stop_session)(struct se_session *, int, int); |
| 66 | void (*fall_back_to_erl0)(struct se_session *); |
| 67 | int (*sess_logged_in)(struct se_session *); |
| 68 | u32 (*sess_get_index)(struct se_session *); |
| 69 | /* |
| 70 | * Used only for SCSI fabrics that contain multi-value TransportIDs |
| 71 | * (like iSCSI). All other SCSI fabrics should set this to NULL. |
| 72 | */ |
| 73 | u32 (*sess_get_initiator_sid)(struct se_session *, |
| 74 | unsigned char *, u32); |
| 75 | int (*write_pending)(struct se_cmd *); |
| 76 | int (*write_pending_status)(struct se_cmd *); |
| 77 | void (*set_default_node_attributes)(struct se_node_acl *); |
| 78 | u32 (*get_task_tag)(struct se_cmd *); |
| 79 | int (*get_cmd_state)(struct se_cmd *); |
| 80 | int (*queue_data_in)(struct se_cmd *); |
| 81 | int (*queue_status)(struct se_cmd *); |
| 82 | int (*queue_tm_rsp)(struct se_cmd *); |
| 83 | u16 (*set_fabric_sense_len)(struct se_cmd *, u32); |
| 84 | u16 (*get_fabric_sense_len)(void); |
| 85 | int (*is_state_remove)(struct se_cmd *); |
| 86 | /* |
| 87 | * fabric module calls for target_core_fabric_configfs.c |
| 88 | */ |
| 89 | struct se_wwn *(*fabric_make_wwn)(struct target_fabric_configfs *, |
| 90 | struct config_group *, const char *); |
| 91 | void (*fabric_drop_wwn)(struct se_wwn *); |
| 92 | struct se_portal_group *(*fabric_make_tpg)(struct se_wwn *, |
| 93 | struct config_group *, const char *); |
| 94 | void (*fabric_drop_tpg)(struct se_portal_group *); |
| 95 | int (*fabric_post_link)(struct se_portal_group *, |
| 96 | struct se_lun *); |
| 97 | void (*fabric_pre_unlink)(struct se_portal_group *, |
| 98 | struct se_lun *); |
| 99 | struct se_tpg_np *(*fabric_make_np)(struct se_portal_group *, |
| 100 | struct config_group *, const char *); |
| 101 | void (*fabric_drop_np)(struct se_tpg_np *); |
| 102 | struct se_node_acl *(*fabric_make_nodeacl)(struct se_portal_group *, |
| 103 | struct config_group *, const char *); |
| 104 | void (*fabric_drop_nodeacl)(struct se_node_acl *); |
| 105 | }; |