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c4795fb2 CH |
1 | #ifndef TARGET_CORE_FABRIC_H |
2 | #define TARGET_CORE_FABRIC_H | |
c66ac9db NB |
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 | */ | |
5dd7ed2e | 11 | bool task_sg_chaining; |
c66ac9db NB |
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 *); | |
052605c6 NB |
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 *); | |
c66ac9db NB |
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 | |
25985edc | 44 | * initially allocated in interrupt context. |
c66ac9db NB |
45 | */ |
46 | int (*new_cmd_map)(struct se_cmd *); | |
c66ac9db NB |
47 | /* |
48 | * Optional to release struct se_cmd and fabric dependent allocated | |
88dd9e26 NB |
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. | |
c66ac9db | 53 | */ |
88dd9e26 | 54 | int (*check_stop_free)(struct se_cmd *); |
a17f091d NB |
55 | /* |
56 | * Optional check for active I/O shutdown | |
57 | */ | |
58 | int (*check_release_cmd)(struct se_cmd *); | |
35462975 | 59 | void (*release_cmd)(struct se_cmd *); |
c66ac9db NB |
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 *); | |
c66ac9db NB |
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 *); | |
c66ac9db NB |
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 | }; | |
c4795fb2 CH |
106 | |
107 | struct se_session *transport_init_session(void); | |
108 | void __transport_register_session(struct se_portal_group *, | |
109 | struct se_node_acl *, struct se_session *, void *); | |
110 | void transport_register_session(struct se_portal_group *, | |
111 | struct se_node_acl *, struct se_session *, void *); | |
112 | void transport_free_session(struct se_session *); | |
113 | void transport_deregister_session_configfs(struct se_session *); | |
114 | void transport_deregister_session(struct se_session *); | |
115 | ||
116 | ||
117 | void transport_init_se_cmd(struct se_cmd *, struct target_core_fabric_ops *, | |
118 | struct se_session *, u32, int, int, unsigned char *); | |
119 | int transport_lookup_cmd_lun(struct se_cmd *, u32); | |
120 | int transport_generic_allocate_tasks(struct se_cmd *, unsigned char *); | |
121 | int transport_handle_cdb_direct(struct se_cmd *); | |
122 | int transport_generic_handle_cdb_map(struct se_cmd *); | |
123 | int transport_generic_handle_data(struct se_cmd *); | |
124 | int transport_generic_map_mem_to_cmd(struct se_cmd *cmd, | |
125 | struct scatterlist *, u32, struct scatterlist *, u32); | |
126 | void transport_do_task_sg_chain(struct se_cmd *); | |
127 | int transport_generic_new_cmd(struct se_cmd *); | |
128 | ||
129 | void transport_generic_process_write(struct se_cmd *); | |
130 | ||
131 | void transport_generic_free_cmd(struct se_cmd *, int); | |
132 | ||
133 | bool transport_wait_for_tasks(struct se_cmd *); | |
134 | int transport_check_aborted_status(struct se_cmd *, int); | |
135 | int transport_send_check_condition_and_sense(struct se_cmd *, u8, int); | |
136 | ||
137 | void target_get_sess_cmd(struct se_session *, struct se_cmd *); | |
138 | int target_put_sess_cmd(struct se_session *, struct se_cmd *); | |
139 | void target_splice_sess_cmd_list(struct se_session *); | |
140 | void target_wait_for_sess_cmds(struct se_session *, int); | |
141 | ||
142 | int core_alua_check_nonop_delay(struct se_cmd *); | |
143 | ||
144 | struct se_tmr_req *core_tmr_alloc_req(struct se_cmd *, void *, u8, gfp_t); | |
145 | void core_tmr_release_req(struct se_tmr_req *); | |
146 | int transport_generic_handle_tmr(struct se_cmd *); | |
147 | int transport_lookup_tmr_lun(struct se_cmd *, u32); | |
148 | ||
149 | struct se_node_acl *core_tpg_check_initiator_node_acl(struct se_portal_group *, | |
150 | unsigned char *); | |
151 | void core_tpg_clear_object_luns(struct se_portal_group *); | |
152 | struct se_node_acl *core_tpg_add_initiator_node_acl(struct se_portal_group *, | |
153 | struct se_node_acl *, const char *, u32); | |
154 | int core_tpg_del_initiator_node_acl(struct se_portal_group *, | |
155 | struct se_node_acl *, int); | |
156 | int core_tpg_set_initiator_node_queue_depth(struct se_portal_group *, | |
157 | unsigned char *, u32, int); | |
158 | int core_tpg_register(struct target_core_fabric_ops *, struct se_wwn *, | |
159 | struct se_portal_group *, void *, int); | |
160 | int core_tpg_deregister(struct se_portal_group *); | |
161 | ||
162 | /* SAS helpers */ | |
163 | u8 sas_get_fabric_proto_ident(struct se_portal_group *); | |
164 | u32 sas_get_pr_transport_id(struct se_portal_group *, struct se_node_acl *, | |
165 | struct t10_pr_registration *, int *, unsigned char *); | |
166 | u32 sas_get_pr_transport_id_len(struct se_portal_group *, struct se_node_acl *, | |
167 | struct t10_pr_registration *, int *); | |
168 | char *sas_parse_pr_out_transport_id(struct se_portal_group *, const char *, | |
169 | u32 *, char **); | |
170 | ||
171 | /* FC helpers */ | |
172 | u8 fc_get_fabric_proto_ident(struct se_portal_group *); | |
173 | u32 fc_get_pr_transport_id(struct se_portal_group *, struct se_node_acl *, | |
174 | struct t10_pr_registration *, int *, unsigned char *); | |
175 | u32 fc_get_pr_transport_id_len(struct se_portal_group *, struct se_node_acl *, | |
176 | struct t10_pr_registration *, int *); | |
177 | char *fc_parse_pr_out_transport_id(struct se_portal_group *, const char *, | |
178 | u32 *, char **); | |
179 | ||
180 | /* iSCSI helpers */ | |
181 | u8 iscsi_get_fabric_proto_ident(struct se_portal_group *); | |
182 | u32 iscsi_get_pr_transport_id(struct se_portal_group *, struct se_node_acl *, | |
183 | struct t10_pr_registration *, int *, unsigned char *); | |
184 | u32 iscsi_get_pr_transport_id_len(struct se_portal_group *, struct se_node_acl *, | |
185 | struct t10_pr_registration *, int *); | |
186 | char *iscsi_parse_pr_out_transport_id(struct se_portal_group *, const char *, | |
187 | u32 *, char **); | |
188 | ||
189 | #endif /* TARGET_CORE_FABRICH */ |