Vladislav Bolkhovitin 90f46b1416 Merged revisions 6896,6905,6908-6910,6912-6914,6917-6921 via svnmerge from
svn+ssh://svn.code.sf.net/p/scst/svn/trunk

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  r6896 | bvassche | 2016-06-08 14:19:24 -0700 (Wed, 08 Jun 2016) | 1 line
  
  ib_srpt: Port to Linux kernel v4.7
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  r6905 | vlnb | 2016-06-29 21:05:14 -0700 (Wed, 29 Jun 2016) | 8 lines
  
  scst: fix possible error path crash in debug mode
  
  It could happen, if a non-pass-through dev handler erroneously returned
  SCST_EXEC_NOT_COMPLETED and TRAGE_DBG() statements enabled in debug mode.
  
  Reported-by: Jeff Goldszer <jeff.goldszer@alebra.com>
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  r6908 | vlnb | 2016-07-01 18:42:49 -0700 (Fri, 01 Jul 2016) | 8 lines
  
  iscsi-scst: handle a case in target_del() where the target was already freed
  
  target_del() calls handle_iscsi_events() which may recursively call target_del().
  The 1st target_del() may resume its execution after the target object was already freed.
  
  Signed-off-by: Erez Zilber <erezzi.list@gmail.com>
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  r6909 | vlnb | 2016-07-13 16:24:41 -0700 (Wed, 13 Jul 2016) | 3 lines
  
  README.dlm update to refer to LVB truncation prevention patch
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  r6910 | vlnb | 2016-07-13 18:33:20 -0700 (Wed, 13 Jul 2016) | 3 lines
  
  README.dlm: update ToDo to reflect recently discovered APTL issue
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  r6912 | bvassche | 2016-07-22 09:48:38 -0700 (Fri, 22 Jul 2016) | 9 lines
  
  scst_dlm: Initialize reg->dlm_idx for PR information loaded from disk
  
  This patch avoids that the following kernel warning appears while
  starting SCST after having loaded APTPL PR information:
  
  WARNING: scst/src/scst_dlm.c:461 scst_copy_to_dlm()
  
  Reported-by: <consus@gmx.com>
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  r6913 | bvassche | 2016-07-22 09:50:31 -0700 (Fri, 22 Jul 2016) | 2 lines
  
  scst_pres: Modify scst_pr_sync_device_file() function prototype
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  r6914 | bvassche | 2016-07-22 09:51:07 -0700 (Fri, 22 Jul 2016) | 2 lines
  
  scst_pres: Save APTPL PR info on both nodes
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  r6917 | vlnb | 2016-07-25 18:42:26 -0700 (Mon, 25 Jul 2016) | 10 lines
  
  iscsi-scst: increase past CmdSN window to 2048
  
  On modern storage there might be more, than 128, commands queued, so
  previous CmdSN window might be too small and on unstable networks lead
  to infinite retries. For more infor see thread
  https://sourceforge.net/p/scst/mailman/message/35238904.
  
  Reported-By: Lev Vainblat <lev@zadarastorage.com>
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  r6918 | vlnb | 2016-07-25 19:04:34 -0700 (Mon, 25 Jul 2016) | 3 lines
  
  scst: small post-r6913 cleanup
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  r6919 | bvassche | 2016-07-26 10:26:17 -0700 (Tue, 26 Jul 2016) | 1 line
  
  /etc/init.d/scst: Make this script work on recent versions of Ubuntu Linux
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  r6920 | bvassche | 2016-08-02 09:31:00 -0700 (Tue, 02 Aug 2016) | 2 lines
  
  scst_dlm: Instantiate lockspace as soon as cluster mode is enabled
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  r6921 | vlnb | 2016-08-02 18:43:24 -0700 (Tue, 02 Aug 2016) | 3 lines
  
  scst: Update README.dlm
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git-svn-id: http://svn.code.sf.net/p/scst/svn/branches/3.1.x@6922 d57e44dd-8a1f-0410-8b47-8ef2f437770f
2016-08-03 01:55:28 +00:00
2015-12-17 14:48:48 +00:00
2016-04-26 14:33:17 +00:00
2011-04-19 22:56:07 +00:00
2015-11-06 03:40:37 +00:00

Overview
========

This is the SCST development repository. It contains not a single
project SCST as one can think, but a number of them, which are divided
as the following:

1. SCST core in scst/ subdirectory

2. Administration utility for SCST core scstadmin in scstadmin/

3. Target drivers in own subdirectories qla2x00t/, iscsi-scst/, etc.

4. User space programs in usr/ subdirectory, like fileio_tgt.

5. Some various docs in doc/ subdirectory.

Those subprojects are in most cases independent from each other,
although some of them depend from the SCST core. They put in the single
repository only to simplify their development, they are released
independently.

Thus, use "make all" only if you really need to build everything.
Otherwise build only what you need, like for iSCSI-SCST:

make scst scst_install iscsi iscsi_install

For more information about each subproject see their README files.


QLogic target driver
====================

QLogic target driver qla2x00t is the old driver, forked from qla2xxx
several years ago. It is very stable, well tested and actively used in
many production setups. The ultimate goal is to have the mainstream
(git) QLogic target driver to be the main and the only QLogic target
driver, but, unfortunately, this driver not yet reached level of quality
and maturity of qla2x00t. We with QLogic are working toward it.

You can find the latest version of the git driver in git://git.qlogic.com/scst-qla2xxx.git.
It is maintained by QLogic, hence located in the QLogic's git.

To integrate it into the SCST build tree you need:

1. Clone the QLogic git tree somewhere in your system.

2. Create in the SCST root, i.e. this directory, a subdirectory with name
qla2x00t_git

3. Optional for the in-tree build: symlink drivers/scsi/qla2xxx
subdirectory in the cloned git tree to the qla2x00t_git subdirectory

Thats all. Now common and QLA specific root Makefile targets "magically"
start working with the new driver.

For detail instructions how to setup QLA target build environment see
its README or HOWTO. Run either "make all" to build the SCST core and
all target drivers with in-tree QLogic drivers, or the following command
with standalone QLogic drivers:

BUILD_2X_MODULE=y CONFIG_SCSI_QLA_FC=y CONFIG_SCSI_QLA2XXX_TARGET=y make all

In presence of qla2x00t_git subdirectory you can still build the
qla2x00t using qla_old* root Makefile targets.

Vladislav Bolkhovitin <vst@vlnb.net>, http://scst.sourceforge.net
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