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Merge of trunk r2232:

Browse Source 
Docs updated



git-svn-id: http://svn.code.sf.net/p/scst/svn/branches/2.0.0.x@2233 d57e44dd-8a1f-0410-8b47-8ef2f437770f
This commit is contained in:
Vladislav Bolkhovitin
2010-09-24 12:23:50 +00:00
parent afadb6306a
commit c01c03a6b9
1 changed files with 33 additions and 0 deletions
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scst_local/README
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@@ -160,6 +160,39 @@ system, which means each your initiator and target are much less
CPU/memory powerful.
User space target drivers
=========================
Scst_local can be used to write full featured SCST target drivers in
user space:
1. For each SCSI target a user space target driver should create an
scst_local's target using "add_target" command.
2. Then the user space target driver should, if needed, set its SCSI and
physical transport version descriptors using attributes
scsi_transport_version and phys_transport_version correspondingly in
/sys/kernel/scst_tgt/targets/scst_local/target_name directory.
3. For incoming session (I_T nexus) from an initiator the user space
target driver should create scst_local's session using "add_session"
command.
4. Then, if needed, the user space target driver should set TransportID
for this session (I_T nexus) using attribute
/sys/kernel/scst_tgt/targets/scst_local/target_name/sessions/session_name/transport_id
5. Then the user space target driver should find out sg/bsg devices for
the LUNs the created session has using link
/sys/kernel/scst_tgt/targets/scst_local/target_name/sessions/session_name/host
as described above.
6. Then the user space target driver can start serving the initiator using
found sg/bsg devices.
For other connected initiators steps 3-6 should be repeated.
Change log
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