mm: make HASHED_PAGE_VIRTUAL page_address' struct page argument const.
[linux-2.6/kvm.git] / include / target / target_core_fabric_ops.h
blob2de8fe9075963350f8159759c118dedc70db1b57
1 /* Defined in target_core_configfs.h */
2 struct target_fabric_configfs;
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
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 struct se_node_acl *(*tpg_alloc_fabric_acl)(
31 struct se_portal_group *);
32 void (*tpg_release_fabric_acl)(struct se_portal_group *,
33 struct se_node_acl *);
34 u32 (*tpg_get_inst_index)(struct se_portal_group *);
36 * Optional function pointer for TCM to perform command map
37 * from TCM processing thread context, for those struct se_cmd
38 * initially allocated in interrupt context.
40 int (*new_cmd_map)(struct se_cmd *);
42 * Optional to release struct se_cmd and fabric dependent allocated
43 * I/O descriptor in transport_cmd_check_stop()
45 void (*check_stop_free)(struct se_cmd *);
46 void (*release_cmd)(struct se_cmd *);
48 * Called with spin_lock_bh(struct se_portal_group->session_lock held.
50 int (*shutdown_session)(struct se_session *);
51 void (*close_session)(struct se_session *);
52 void (*stop_session)(struct se_session *, int, int);
53 void (*fall_back_to_erl0)(struct se_session *);
54 int (*sess_logged_in)(struct se_session *);
55 u32 (*sess_get_index)(struct se_session *);
57 * Used only for SCSI fabrics that contain multi-value TransportIDs
58 * (like iSCSI). All other SCSI fabrics should set this to NULL.
60 u32 (*sess_get_initiator_sid)(struct se_session *,
61 unsigned char *, u32);
62 int (*write_pending)(struct se_cmd *);
63 int (*write_pending_status)(struct se_cmd *);
64 void (*set_default_node_attributes)(struct se_node_acl *);
65 u32 (*get_task_tag)(struct se_cmd *);
66 int (*get_cmd_state)(struct se_cmd *);
67 int (*queue_data_in)(struct se_cmd *);
68 int (*queue_status)(struct se_cmd *);
69 int (*queue_tm_rsp)(struct se_cmd *);
70 u16 (*set_fabric_sense_len)(struct se_cmd *, u32);
71 u16 (*get_fabric_sense_len)(void);
72 int (*is_state_remove)(struct se_cmd *);
74 * fabric module calls for target_core_fabric_configfs.c
76 struct se_wwn *(*fabric_make_wwn)(struct target_fabric_configfs *,
77 struct config_group *, const char *);
78 void (*fabric_drop_wwn)(struct se_wwn *);
79 struct se_portal_group *(*fabric_make_tpg)(struct se_wwn *,
80 struct config_group *, const char *);
81 void (*fabric_drop_tpg)(struct se_portal_group *);
82 int (*fabric_post_link)(struct se_portal_group *,
83 struct se_lun *);
84 void (*fabric_pre_unlink)(struct se_portal_group *,
85 struct se_lun *);
86 struct se_tpg_np *(*fabric_make_np)(struct se_portal_group *,
87 struct config_group *, const char *);
88 void (*fabric_drop_np)(struct se_tpg_np *);
89 struct se_node_acl *(*fabric_make_nodeacl)(struct se_portal_group *,
90 struct config_group *, const char *);
91 void (*fabric_drop_nodeacl)(struct se_node_acl *);