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0fd9c9b385
- Build configuration changed to "Release" - iscsi-scst-howto.txt added - ChangeLog's updated - Minor docs changes - scstadm_install and scstadm_uninstall main Makefile targets added git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@433 d57e44dd-8a1f-0410-8b47-8ef2f437770f
47 lines
1.8 KiB
Plaintext
47 lines
1.8 KiB
Plaintext
Summary of changes in iSCSI-SCST since it was IET
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- Commands processing flow changed to work with SCST. Significant
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cleanup was done. Modules and config files were renamed to allow to
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run with IET on the same host.
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- In IET the iSCSI negotiation isn't fully iSCSI RFC confirmed: it doesn't
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support ranges of values and, more important, violates RFC in case
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when in the IET config file some value for some parameter is set and
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a remote initiator doesn't initiate the negotiation for this
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parameter or declare its value. According to RFC, in this case IET
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shall use the RFC-specified default value, but it uses config file
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specified one instead. Looks like the implementation confuses IET
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config file default values and iSCSI RFC ones. The default values
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handling was fixed. But support for ranges remains unfixed (see ToDo
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file).
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- All shutdown/restart problems (resource leaks, hangups, etc.), especially
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under load, were fixed.
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- Full duplex network IO implemented.
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- Threading model reimplemented.
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- Digests calculation made multi-threaded.
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- TX data digest errors handling iSCSI RFC violation was fixed. Another one
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(SNACK handling) remains unfixed.
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- Ability to send data with sense in a single response added.
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- Ability to handle initiators misbehavior a bit improved: several BUG()'s
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were relaced by the proper handling. Hovewer, there is a plenty of work in
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this area left, IET is known to have a lot of weaknesses here.
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- Task management made more robust. Particularly, possible data
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corruption scenarios were fixed.
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- Implemented SN based iSCSI IO flow control
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- Response data send timeout implemented: now if initiator doesn't
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accept data for too long (30 sec), target closes connection
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- A lot of other bugfixes and code cleanups.
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