Merge tag 'v2.6.38' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6

[mv-sheeva.git] / include / target / target_core_fabric_ops.h

diff --git a/include/target/target_core_fabric_ops.h b/include/target/target_core_fabric_ops.h
new file mode 100644 (file)
index 0000000..f3ac12b
--- /dev/null
+++ b/include/target/target_core_fabric_ops.h
@@ -0,0 +1,100 @@
+/* Defined in target_core_configfs.h */
+struct target_fabric_configfs;
+
+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
+        */
+       int task_sg_chaining:1;
+       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 *);
+       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
+        * initally allocated in interrupt context.
+        */
+       int (*new_cmd_map)(struct se_cmd *);
+       /*
+        * Optional function pointer for TCM fabric modules that use
+        * Linux/NET sockets to allocate struct iovec array to struct se_cmd
+        */
+       int (*alloc_cmd_iovecs)(struct se_cmd *);
+       /*
+        * Optional to release struct se_cmd and fabric dependent allocated
+        * I/O descriptor in transport_cmd_check_stop()
+        */
+       void (*check_stop_free)(struct se_cmd *);
+       void (*release_cmd_to_pool)(struct se_cmd *);
+       void (*release_cmd_direct)(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 *);
+       void (*stop_session)(struct se_session *, int, int);
+       void (*fall_back_to_erl0)(struct se_session *);
+       int (*sess_logged_in)(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 *);
+       void (*new_cmd_failure)(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);
+       int (*is_state_remove)(struct se_cmd *);
+       u64 (*pack_lun)(unsigned int);
+       /*
+        * 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 *);
+};