Christoph Hellwig | c4795fb | 2011-11-16 09:46:48 -0500 | [diff] [blame] | 1 | #ifndef TARGET_CORE_FABRIC_H |
| 2 | #define TARGET_CORE_FABRIC_H |
| 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 *); |
Christoph Hellwig | c4795fb | 2011-11-16 09:46:48 -0500 | [diff] [blame] | 55 | void (*release_cmd)(struct se_cmd *); |
| 56 | /* |
| 57 | * Called with spin_lock_bh(struct se_portal_group->session_lock held. |
| 58 | */ |
| 59 | int (*shutdown_session)(struct se_session *); |
| 60 | void (*close_session)(struct se_session *); |
| 61 | void (*stop_session)(struct se_session *, int, int); |
| 62 | void (*fall_back_to_erl0)(struct se_session *); |
| 63 | int (*sess_logged_in)(struct se_session *); |
| 64 | u32 (*sess_get_index)(struct se_session *); |
| 65 | /* |
| 66 | * Used only for SCSI fabrics that contain multi-value TransportIDs |
| 67 | * (like iSCSI). All other SCSI fabrics should set this to NULL. |
| 68 | */ |
| 69 | u32 (*sess_get_initiator_sid)(struct se_session *, |
| 70 | unsigned char *, u32); |
| 71 | int (*write_pending)(struct se_cmd *); |
| 72 | int (*write_pending_status)(struct se_cmd *); |
| 73 | void (*set_default_node_attributes)(struct se_node_acl *); |
| 74 | u32 (*get_task_tag)(struct se_cmd *); |
| 75 | int (*get_cmd_state)(struct se_cmd *); |
| 76 | int (*queue_data_in)(struct se_cmd *); |
| 77 | int (*queue_status)(struct se_cmd *); |
| 78 | int (*queue_tm_rsp)(struct se_cmd *); |
| 79 | u16 (*set_fabric_sense_len)(struct se_cmd *, u32); |
| 80 | u16 (*get_fabric_sense_len)(void); |
| 81 | int (*is_state_remove)(struct se_cmd *); |
| 82 | /* |
| 83 | * fabric module calls for target_core_fabric_configfs.c |
| 84 | */ |
| 85 | struct se_wwn *(*fabric_make_wwn)(struct target_fabric_configfs *, |
| 86 | struct config_group *, const char *); |
| 87 | void (*fabric_drop_wwn)(struct se_wwn *); |
| 88 | struct se_portal_group *(*fabric_make_tpg)(struct se_wwn *, |
| 89 | struct config_group *, const char *); |
| 90 | void (*fabric_drop_tpg)(struct se_portal_group *); |
| 91 | int (*fabric_post_link)(struct se_portal_group *, |
| 92 | struct se_lun *); |
| 93 | void (*fabric_pre_unlink)(struct se_portal_group *, |
| 94 | struct se_lun *); |
| 95 | struct se_tpg_np *(*fabric_make_np)(struct se_portal_group *, |
| 96 | struct config_group *, const char *); |
| 97 | void (*fabric_drop_np)(struct se_tpg_np *); |
| 98 | struct se_node_acl *(*fabric_make_nodeacl)(struct se_portal_group *, |
| 99 | struct config_group *, const char *); |
| 100 | void (*fabric_drop_nodeacl)(struct se_node_acl *); |
| 101 | }; |
| 102 | |
| 103 | struct se_session *transport_init_session(void); |
| 104 | void __transport_register_session(struct se_portal_group *, |
| 105 | struct se_node_acl *, struct se_session *, void *); |
| 106 | void transport_register_session(struct se_portal_group *, |
| 107 | struct se_node_acl *, struct se_session *, void *); |
| 108 | void transport_free_session(struct se_session *); |
| 109 | void transport_deregister_session_configfs(struct se_session *); |
| 110 | void transport_deregister_session(struct se_session *); |
| 111 | |
| 112 | |
| 113 | void transport_init_se_cmd(struct se_cmd *, struct target_core_fabric_ops *, |
| 114 | struct se_session *, u32, int, int, unsigned char *); |
| 115 | int transport_lookup_cmd_lun(struct se_cmd *, u32); |
| 116 | int transport_generic_allocate_tasks(struct se_cmd *, unsigned char *); |
Andy Grover | 1edcdb4 | 2012-01-19 13:39:23 -0800 | [diff] [blame] | 117 | void target_submit_cmd(struct se_cmd *, struct se_session *, unsigned char *, |
Nicholas Bellinger | a636078 | 2011-11-18 20:36:22 -0800 | [diff] [blame] | 118 | unsigned char *, u32, u32, int, int, int); |
Andy Grover | ea98d7f | 2012-01-19 13:39:21 -0800 | [diff] [blame] | 119 | void target_submit_tmr(struct se_cmd *se_cmd, struct se_session *se_sess, |
| 120 | unsigned char *sense, u32 unpacked_lun, |
| 121 | void *fabric_tmr_ptr, unsigned char tm_type, int flags); |
Christoph Hellwig | c4795fb | 2011-11-16 09:46:48 -0500 | [diff] [blame] | 122 | int transport_handle_cdb_direct(struct se_cmd *); |
| 123 | int transport_generic_handle_cdb_map(struct se_cmd *); |
| 124 | int transport_generic_handle_data(struct se_cmd *); |
| 125 | int transport_generic_map_mem_to_cmd(struct se_cmd *cmd, |
| 126 | struct scatterlist *, u32, struct scatterlist *, u32); |
| 127 | void transport_do_task_sg_chain(struct se_cmd *); |
| 128 | int transport_generic_new_cmd(struct se_cmd *); |
| 129 | |
| 130 | void transport_generic_process_write(struct se_cmd *); |
| 131 | |
| 132 | void transport_generic_free_cmd(struct se_cmd *, int); |
| 133 | |
| 134 | bool transport_wait_for_tasks(struct se_cmd *); |
| 135 | int transport_check_aborted_status(struct se_cmd *, int); |
| 136 | int transport_send_check_condition_and_sense(struct se_cmd *, u8, int); |
| 137 | |
Nicholas Bellinger | a636078 | 2011-11-18 20:36:22 -0800 | [diff] [blame] | 138 | void target_get_sess_cmd(struct se_session *, struct se_cmd *, bool); |
Christoph Hellwig | c4795fb | 2011-11-16 09:46:48 -0500 | [diff] [blame] | 139 | int target_put_sess_cmd(struct se_session *, struct se_cmd *); |
| 140 | void target_splice_sess_cmd_list(struct se_session *); |
| 141 | void target_wait_for_sess_cmds(struct se_session *, int); |
| 142 | |
| 143 | int core_alua_check_nonop_delay(struct se_cmd *); |
| 144 | |
Andy Grover | c8e31f2 | 2012-01-19 13:39:17 -0800 | [diff] [blame] | 145 | int core_tmr_alloc_req(struct se_cmd *, void *, u8, gfp_t); |
Christoph Hellwig | c4795fb | 2011-11-16 09:46:48 -0500 | [diff] [blame] | 146 | void core_tmr_release_req(struct se_tmr_req *); |
| 147 | int transport_generic_handle_tmr(struct se_cmd *); |
Nicholas Bellinger | 2fbff12 | 2012-02-10 16:18:11 -0800 | [diff] [blame^] | 148 | void transport_generic_request_failure(struct se_cmd *); |
Christoph Hellwig | c4795fb | 2011-11-16 09:46:48 -0500 | [diff] [blame] | 149 | int transport_lookup_tmr_lun(struct se_cmd *, u32); |
| 150 | |
| 151 | struct se_node_acl *core_tpg_check_initiator_node_acl(struct se_portal_group *, |
| 152 | unsigned char *); |
| 153 | void core_tpg_clear_object_luns(struct se_portal_group *); |
| 154 | struct se_node_acl *core_tpg_add_initiator_node_acl(struct se_portal_group *, |
| 155 | struct se_node_acl *, const char *, u32); |
| 156 | int core_tpg_del_initiator_node_acl(struct se_portal_group *, |
| 157 | struct se_node_acl *, int); |
| 158 | int core_tpg_set_initiator_node_queue_depth(struct se_portal_group *, |
| 159 | unsigned char *, u32, int); |
| 160 | int core_tpg_register(struct target_core_fabric_ops *, struct se_wwn *, |
| 161 | struct se_portal_group *, void *, int); |
| 162 | int core_tpg_deregister(struct se_portal_group *); |
| 163 | |
| 164 | /* SAS helpers */ |
| 165 | u8 sas_get_fabric_proto_ident(struct se_portal_group *); |
| 166 | u32 sas_get_pr_transport_id(struct se_portal_group *, struct se_node_acl *, |
| 167 | struct t10_pr_registration *, int *, unsigned char *); |
| 168 | u32 sas_get_pr_transport_id_len(struct se_portal_group *, struct se_node_acl *, |
| 169 | struct t10_pr_registration *, int *); |
| 170 | char *sas_parse_pr_out_transport_id(struct se_portal_group *, const char *, |
| 171 | u32 *, char **); |
| 172 | |
| 173 | /* FC helpers */ |
| 174 | u8 fc_get_fabric_proto_ident(struct se_portal_group *); |
| 175 | u32 fc_get_pr_transport_id(struct se_portal_group *, struct se_node_acl *, |
| 176 | struct t10_pr_registration *, int *, unsigned char *); |
| 177 | u32 fc_get_pr_transport_id_len(struct se_portal_group *, struct se_node_acl *, |
| 178 | struct t10_pr_registration *, int *); |
| 179 | char *fc_parse_pr_out_transport_id(struct se_portal_group *, const char *, |
| 180 | u32 *, char **); |
| 181 | |
| 182 | /* iSCSI helpers */ |
| 183 | u8 iscsi_get_fabric_proto_ident(struct se_portal_group *); |
| 184 | u32 iscsi_get_pr_transport_id(struct se_portal_group *, struct se_node_acl *, |
| 185 | struct t10_pr_registration *, int *, unsigned char *); |
| 186 | u32 iscsi_get_pr_transport_id_len(struct se_portal_group *, struct se_node_acl *, |
| 187 | struct t10_pr_registration *, int *); |
| 188 | char *iscsi_parse_pr_out_transport_id(struct se_portal_group *, const char *, |
| 189 | u32 *, char **); |
| 190 | |
| 191 | #endif /* TARGET_CORE_FABRICH */ |