Currently, session info is in 3 places: 1. iscsi has the info file under initiator acls. 2. In the tpg dir iscsi and qla have the dynamic sessions. 3. Some lun stat files return some initiator info. The problem with these is for: 1 and 3 - They only display 1 session's info per target port. In multipath and HA setups you will have multiple initiator ports connected to each target port, so for iscsi the isid will be different for each session. 2 - We only get the initiator name. For iscsi we want the isid. Also if we have a lot of sessions we are limited by the PAGE_SIZE file limit. To handle all these issues these patches add session info under /sys/kernel/config/target/iscsi/$target_name/tpgt_$N/sessions This only a RFC right now. There is still a bug in the iscsi code where if configfs registration fails we have to cleanup the session.
