mirror of
https://github.com/SCST-project/scst.git
synced 2026-05-14 01:01:27 +00:00
f742ae018e
Speeds up reading from a RAM disk via ib_srpt by about 30%. Tested with iSCSI-SCST, ib_srpt and scst_local. Signed-off-by: Bart Van Assche <bvanassche@acm.org> In it: - Fixed NULLIO, which the original patch breaks - Changed on all fast paths sBUG_ON() on EXTRACHECKS_BUG_ON() - Fixed errors path in non_fileio_exec() and fileio_alloc_data_buf(). - Renamed zero_copy_read to just zero_copy. - Docs and change log updated - Some cleanups git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@4213 d57e44dd-8a1f-0410-8b47-8ef2f437770f
167 lines
5.2 KiB
Plaintext
167 lines
5.2 KiB
Plaintext
Summary of changes between versions 2.1.0 and 3.0
|
|
-------------------------------------------------
|
|
|
|
- Update to kernels up to 3.3
|
|
|
|
- Bug fixes and other improvements
|
|
|
|
|
|
Summary of changes between versions 2.0.0 and 2.1.0
|
|
---------------------------------------------------
|
|
|
|
- Update to kernels up to 3.0
|
|
|
|
- Significant Task Management commands handling improvements and fixes
|
|
|
|
- Assigning CPU affinity to RD/WR threads added
|
|
|
|
- Other minor fixes and improvements
|
|
|
|
|
|
Summary of changes in iSCSI-SCST between versions 1.0.1 and 1.0.2
|
|
-----------------------------------------------------------------
|
|
|
|
- Support bidirectional transfers added
|
|
|
|
- Connection and session reinstatements fixes
|
|
|
|
- Fixes in handling of initiators.allow and initiators.deny files
|
|
|
|
- Sync with the latest IET
|
|
|
|
- Other minor fixes and cleanups
|
|
|
|
|
|
Summary of changes in iSCSI-SCST between versions 1.0.0 and 1.0.1
|
|
-----------------------------------------------------------------
|
|
|
|
- Support for variable length CDB added
|
|
|
|
- Sending and receiving padding bytes as well as sesnse data
|
|
reimplemented to make it more reliable
|
|
|
|
- Support for SCSI Async. Event Notifications added
|
|
|
|
- Sessions and connections reinstatement reimplemented to be conforming
|
|
to iSCSI RFC
|
|
|
|
- iscsi-scst-adm fixed
|
|
|
|
- Removed artificial limitation of sg_tablesize. It isn't needed,
|
|
because the regular iSCSI negotiated MaxRecvDataSegmentLength-related
|
|
facilities do all the job pretty well.
|
|
|
|
- Merge with IET r170-211:
|
|
|
|
* Update MaxConnections documentation
|
|
|
|
* Remove isns config description from man page
|
|
|
|
* Check return values of chdir(), ftruncate() and write(), because
|
|
recent versions of the glibc insist on the return value being
|
|
checked by introducing __attribute__((warn_unused_result)) to these
|
|
functions.
|
|
|
|
* Fix snprintf use in isns.c
|
|
|
|
* Take \0-termination into account when passing strings to
|
|
isns_tlv_set() to solve incompatibility with MS iSNS 3.0 as IQN
|
|
length is multiple of 4
|
|
|
|
* Fix list corruption if SCST target registration fails
|
|
|
|
* Register the target port actually used instead of the default iSCSI port.
|
|
|
|
* Remove unused connection->pad
|
|
|
|
* Refactor cmnd_execute()
|
|
|
|
* Introduce min*/max*() and more list_* macros
|
|
|
|
* Multipart PDU support for discovery sessions
|
|
|
|
* Add support for Reject PDUs and make use of them in appropriate places.
|
|
|
|
* Ignore SIGPIPE in iscsi-scstd
|
|
|
|
* Allow removal of kernel target objects if the user space object does not exist
|
|
|
|
* Use netlink_socket_release() to clean up netlink sockets correctly
|
|
(taking care of namespaces)
|
|
|
|
* More scalable proc seq_file implementation
|
|
|
|
* Segfault in ietd buffer overrun in dump_line
|
|
|
|
* Add iscsi-scst-adm support to display list of CHAP accounts and their data
|
|
|
|
* Fixed compilation on glibc 2.8
|
|
|
|
* Fix CHAP account handling bugs
|
|
|
|
* Fix bugs in multi PDU handling code
|
|
|
|
- Support for CentOS 5.2 added (Bart Van Assche)
|
|
|
|
- Fixed NOP-Out with payload handling
|
|
|
|
- Several minor iSCSI RFC violations fixed
|
|
|
|
- Update for kernels up to 2.6.29
|
|
|
|
- Zero-copy feature, introduced by put_page_callback patch made
|
|
kernel compile time configurable via
|
|
CONFIG_TCP_ZERO_COPY_TRANSFER_COMPLETION_NOTIFICATION option. If you
|
|
upgrade from earlier versions, see the corresponding "[CAUTION]"
|
|
e-mail in scst-devel mailing list about possible compatibility
|
|
problems.
|
|
|
|
- A lot of cleanups and minor fixes
|
|
|
|
Summary of changes in iSCSI-SCST since it was IET
|
|
-------------------------------------------------
|
|
|
|
- Commands processing flow changed to work with SCST. Significant
|
|
cleanup was done. Modules and config files were renamed to allow to
|
|
run with IET on the same host.
|
|
|
|
- In IET the iSCSI negotiation isn't fully iSCSI RFC confirmed: it doesn't
|
|
support ranges of values and, more important, violates RFC in case
|
|
when in the IET config file some value for some parameter is set and
|
|
a remote initiator doesn't initiate the negotiation for this
|
|
parameter or declare its value. According to RFC, in this case IET
|
|
shall use the RFC-specified default value, but it uses config file
|
|
specified one instead. Looks like the implementation confuses IET
|
|
config file default values and iSCSI RFC ones. The default values
|
|
handling was fixed. But support for ranges remains unfixed (see ToDo
|
|
file).
|
|
|
|
- All shutdown/restart problems (resource leaks, hangups, etc.), especially
|
|
under load, were fixed.
|
|
|
|
- Full duplex network IO implemented.
|
|
|
|
- Threading model reimplemented.
|
|
|
|
- Digests calculation made multi-threaded.
|
|
|
|
- TX data digest errors handling iSCSI RFC violation was fixed. Another one
|
|
(SNACK handling) remains unfixed.
|
|
|
|
- Ability to send data with sense in a single response added.
|
|
|
|
- Ability to handle initiators misbehavior a bit improved: several BUG()'s
|
|
were replaced by the proper handling. However, there is a plenty of work in
|
|
this area left, IET is known to have a lot of weaknesses here.
|
|
|
|
- Task management made more robust. Particularly, possible data
|
|
corruption scenarios were fixed.
|
|
|
|
- Implemented SN based iSCSI IO flow control
|
|
|
|
- Response data send timeout implemented: now if initiator doesn't
|
|
accept data for too long (30 sec), target closes connection
|
|
|
|
- A lot of other bugfixes and code cleanups.
|
|
|