Commit Graph

61 Commits

Author SHA1 Message Date
Vladislav Bolkhovitin
fe38e4acb2 Copyrights updated
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6146 d57e44dd-8a1f-0410-8b47-8ef2f437770f
2015-03-19 00:01:03 +00:00
Bart Van Assche
9707f85c0b Fix kernel 3.17 checkpatch warnings about 'long long unsigned'
Avoid that checkpatch reports the following warning:

WARNING: type 'long long unsigned' should be specified in 'unsigned long long' order.


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@5885 d57e44dd-8a1f-0410-8b47-8ef2f437770f
2014-11-26 08:16:44 +00:00
Vladislav Bolkhovitin
827e5b1461 scst, iscsi-scst: Add thread_pid attribute
For SCST devices with a short name determining which SCST command
threads serve a given LUN requires an (expensive) walk of the
process table. For SCST devices with a long name it is not possible
to determine unambiguously which command threads serve a given
LUN. Hence add a thread_pid sysfs attribute that makes it easy to
figure out which command threads serve a LUN.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>



git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@5851 d57e44dd-8a1f-0410-8b47-8ef2f437770f
2014-10-17 02:35:01 +00:00
Bart Van Assche
a2b88e7894 Fix a kernel 3.16 checkpatch complaint about trailing semicolons
Avoid that the checkpatch tool included in Linux kernel v3.16 reports the
following warning:

    macros should not use a trailing semicolon

This patch does not change any functionality.


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@5724 d57e44dd-8a1f-0410-8b47-8ef2f437770f
2014-08-22 07:19:55 +00:00
Vladislav Bolkhovitin
6b32f4ae81 scst, iscsi-scst: Fix RHEL 5 compilation warnings
Signed-off-by: Bart Van Assche <bvanassche@acm.org>



git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@5615 d57e44dd-8a1f-0410-8b47-8ef2f437770f
2014-06-20 04:03:40 +00:00
Vladislav Bolkhovitin
97167af582 scst: Make lockdep_assert_held() easier to use
The lockdep_assert_held() macro is a convenient debugging tool.
However, it is inconvenient to surround each invocation of that
macro by an #ifdef/#endif pair. Hence make it easier to use this
macro with older kernel versions.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>



git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@5573 d57e44dd-8a1f-0410-8b47-8ef2f437770f
2014-06-06 03:26:55 +00:00
Vladislav Bolkhovitin
00851a7501 Merge of adding iSER web page and copyright updates from the iSER branch
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@5241 d57e44dd-8a1f-0410-8b47-8ef2f437770f
2014-01-28 05:17:26 +00:00
Vladislav Bolkhovitin
65d1b76e50 iscsi-scst: Make locking requirements explicit
Signed-off-by: Bart Van Assche <bvanassche@acm.org>



git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@5101 d57e44dd-8a1f-0410-8b47-8ef2f437770f
2013-11-13 04:51:05 +00:00
Vladislav Bolkhovitin
2093dd7561 Make it possible to forcibly close SRP and FC sessions via sysfs
That patch contains the following changes:
* Move the code for creating a "close_sess" sysfs attribute from iscsi-scst to
  the SCST core such that it becomes available for other target drivers. This
  does not change the functionality of iscsi-scst.
* Add code in ib_srpt and qla2x00t to allow a session to be forcibly closed from
  user space.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>




git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@4852 d57e44dd-8a1f-0410-8b47-8ef2f437770f
2013-05-18 00:52:46 +00:00
Vladislav Bolkhovitin
2cadcc2c64 Cache alignment review
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@4809 d57e44dd-8a1f-0410-8b47-8ef2f437770f
2013-03-23 01:38:31 +00:00
Vladislav Bolkhovitin
b9c0b9d92d Another micro-optimization: cache align all fast path structures
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@4785 d57e44dd-8a1f-0410-8b47-8ef2f437770f
2013-03-04 23:51:16 +00:00
Vladislav Bolkhovitin
10ca1d2f20 Copyrights updated
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@4767 d57e44dd-8a1f-0410-8b47-8ef2f437770f
2013-02-20 02:05:29 +00:00
Vladislav Bolkhovitin
eb4f05aafe This patch addresses a minor stylistic issue: use the value
returned by mutex_lock_interruptible() instead of explicitly
assigning -EINTR to res.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>



git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@4481 d57e44dd-8a1f-0410-8b47-8ef2f437770f
2012-08-27 20:42:58 +00:00
Vladislav Bolkhovitin
eb95049061 Copyrights updated + cleanups
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@4216 d57e44dd-8a1f-0410-8b47-8ef2f437770f
2012-04-18 02:26:39 +00:00
Vladislav Bolkhovitin
9da517bae1 Update for kernel 3.2. Netlink part in iSCSI-SCST done by Bart Van Assche <bvanassche@acm.org>
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@4077 d57e44dd-8a1f-0410-8b47-8ef2f437770f
2012-01-18 23:48:02 +00:00
Vladislav Bolkhovitin
f3238333dd Copyrights updated
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@3200 d57e44dd-8a1f-0410-8b47-8ef2f437770f
2011-01-06 20:02:04 +00:00
Vladislav Bolkhovitin
ff2c24c1c3 Assigning CPU affinity to threads and connections
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@2317 d57e44dd-8a1f-0410-8b47-8ef2f437770f
2010-09-30 18:07:27 +00:00
Vladislav Bolkhovitin
b53e4cb4c1 Merge of the pr branch with additional fixes for problems found during extra testing
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@1714 d57e44dd-8a1f-0410-8b47-8ef2f437770f
2010-05-26 17:46:46 +00:00
Vladislav Bolkhovitin
bc1cda46df Sparse cleanups
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@1713 d57e44dd-8a1f-0410-8b47-8ef2f437770f
2010-05-24 12:32:45 +00:00
Vladislav Bolkhovitin
5406a07d26 Various iSCSI initiators access control and visibility improvements. Particularly:
- SendTargets now returns all (allowed) portals. Particularly based on IET r230, 234, 249 and 264.
 - Initiators assigned to security groups without LUNs will not see the target during discovery and forbidden to login to it
 - Per portals access control added
 - Negative sign added to wildcard matching
 - Docs updated
 - Cleanups and minor fixes



git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@1685 d57e44dd-8a1f-0410-8b47-8ef2f437770f
2010-05-07 18:08:52 +00:00
Vladislav Bolkhovitin
4d5aaf047b Copyrights updated
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@1585 d57e44dd-8a1f-0410-8b47-8ef2f437770f
2010-04-06 08:57:48 +00:00
Bart Van Assche
53a9bad357 Fixed several compiler and checkpatch warnings.
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@1568 d57e44dd-8a1f-0410-8b47-8ef2f437770f
2010-03-27 08:46:06 +00:00
Vladislav Bolkhovitin
4d96089e50 Sysfs interface for targets made uniform. ISCSI-SCST made confirming the uniformity requirements. See README for details.
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@1511 d57e44dd-8a1f-0410-8b47-8ef2f437770f
2010-02-17 19:07:54 +00:00
Vladislav Bolkhovitin
05d1bbfedc A huge chunk of related to each other changes, which had to be tested together.
iSCSI-SCST: A huge improvements in errors recovery and iSCSI RFC complaince as well as performance. Also:

 - Fixes and improvements for MaxOutstandingR2T>1

 - Flow control tracing added.

 - Cleanups

SCST core:

 - Now for scst_cmd_init_stage1_done() commands preprocessing_done() is always called before xmit_response(), even in case of abort or error.

 - Fixed recently introduced bug, which can lead to sending responses for aborted commands after reply on the corresponding TM command already sent.

 - Flow control tracing added.

 - Now it is possible to call functions setting commands execution status (e.g., scst_set_cmd_error_status()) several times for the same command. Only the first call will be completed, other calls - ignored.

 - All commands are counted and shown in proc/sysfs now. Before only active, i.e. not yet executed commands, were counted and shown there.



git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@1431 d57e44dd-8a1f-0410-8b47-8ef2f437770f
2010-01-06 13:02:22 +00:00
Bart Van Assche
cdbd65daeb Removed trailing whitespace.
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@1313 d57e44dd-8a1f-0410-8b47-8ef2f437770f
2009-11-03 07:46:39 +00:00
Vladislav Bolkhovitin
3af8bc9a4c Various sysfs related fixes
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@1309 d57e44dd-8a1f-0410-8b47-8ef2f437770f
2009-11-02 18:07:54 +00:00
Vladislav Bolkhovitin
977a20ccba ISCSI target sysfs implementation, except "enabled" attribute.
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@1305 d57e44dd-8a1f-0410-8b47-8ef2f437770f
2009-10-30 20:15:38 +00:00
Vladislav Bolkhovitin
82b04b2a00 Merge of the sysfs branch. To enable the sysfs interface you should run "make disable_proc". To switch back on the procfs interface you should run "make disable_proc".
The sysfs intarface is mostly finished. Only initiators-oriented access control not implemented and not all target drivers are updated. Only qla2x00t has been fully updated.



git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@1229 d57e44dd-8a1f-0410-8b47-8ef2f437770f
2009-10-21 16:49:52 +00:00
Vladislav Bolkhovitin
cc83f517ea - Fix for a possible DoS, when misbehavine scst_user's handler hangs several memory allocations (= count of iSCSI read threads) and by so prevents other sessions from being served correctly. Spotted by Erez Zilber <erezzi.list@gmail.com>
- iSCSI read state machine cleanups

 - Fix a race when just freed iSCSI session accessed, because the corresponding SCST session is still being unregistered.



git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@1224 d57e44dd-8a1f-0410-8b47-8ef2f437770f
2009-10-15 15:56:57 +00:00
Vladislav Bolkhovitin
f572d4ff79 - Copyrights updated.
- Other minor updates



git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@803 d57e44dd-8a1f-0410-8b47-8ef2f437770f
2009-04-27 19:01:28 +00:00
Vladislav Bolkhovitin
8c88994bb2 The patch below fixes recently introduced checkpatch complaints on whitespace
and also fixes two (false positive) sparse warnings about uninitialized variables.

Signed-off-by: Bart Van Assche <bart.vanassche@gmail.com>



git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@776 d57e44dd-8a1f-0410-8b47-8ef2f437770f
2009-04-14 17:50:11 +00:00
Vladislav Bolkhovitin
7b30ca41cb - Now during connection and session reinstatements only SCSI commands are delayed until the corresponding reinstatement finished.
- TEST UNIT READY made HEAD OF QUEUE to let target don't look dead under high load
 - Docs updated



git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@774 d57e44dd-8a1f-0410-8b47-8ef2f437770f
2009-04-14 17:29:23 +00:00
Vladislav Bolkhovitin
bf4556ec1c A bunch of minor fixes and important cleanups. Particularly:
- More fixes on circular dependency between target_mutex and scst_mutex
 - Docs updated
 - Sense handling cleanups



git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@764 d57e44dd-8a1f-0410-8b47-8ef2f437770f
2009-04-09 10:07:31 +00:00
Vladislav Bolkhovitin
426234630f Missed bits in preventing circular locking dependency between target_mutex and scst_mutex
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@752 d57e44dd-8a1f-0410-8b47-8ef2f437770f
2009-04-06 11:19:07 +00:00
Vladislav Bolkhovitin
f8eebf8dd8 Fix for circular locking dependency between target_mutex and scst_mutex spotted by lockdep
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@743 d57e44dd-8a1f-0410-8b47-8ef2f437770f
2009-04-03 17:38:20 +00:00
Vladislav Bolkhovitin
8ff3e56ef6 Fixes deadlock on iSCSI session freeing. Reported by andy yan <andyysj@gmail.com>
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@718 d57e44dd-8a1f-0410-8b47-8ef2f437770f
2009-03-25 13:03:29 +00:00
Vladislav Bolkhovitin
bc96b052d5 The patch below adds support for the 2.6.29 kernel and also fixes the
checkpatch issues reported by the checkpatch script included with the 2.6.29
kernel and that were not yet reported by the 2.6.28 checkpatch script
(trailing statements should be on the next line / struct should normally be
const).
The patch below has been tested as follows:
- Reran scripts/run-regression-tests -k 2.6.24.7 -k 2.6.25.20 -k 2.6.26.8 -k 2.6.27.21 -k 2.6.28.9 -k 2.6.29 and verified the output.
- Rebuilt, installed and loaded scst, iscsi-scst and srpt as follows:
make -s clean && make -s -C scst install && make -s -C iscsi-scst install && make -s -C srpt install && cd scstadmin && make -s && make -s install && modprobe scst_vdisk && modprobe iscsi-scst && dmesg

Signed-off-by: Bart Van Assche <bart.vanassche@gmail.com>

with minor cleanups and corrections in put_page_callback-2.6.29.patch



git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@717 d57e44dd-8a1f-0410-8b47-8ef2f437770f
2009-03-25 12:55:27 +00:00
Vladislav Bolkhovitin
9c552a9b60 The patch below fixes the following recently introduced checkpatch complaints:
* use tabs not spaces

and the following recently introduced sparse warnings:

* drivers/scst/scst_lib.c:437:6: warning: symbol 'scst_queue_report_luns_changed_UA' was not declared. Should it be static?
* drivers/scst/scst_lib.c:3909:21: warning: symbol 'tm_dbg_tgt_dev' was not declared. Should it be static?
* drivers/scst/iscsi-scst/session.c:170:9: warning: cast to non-scalar
* drivers/scst/iscsi-scst/session.c:180:24: warning: cast to non-scalar
The patch below has been verified by reviewing it carefully and by verifying the output of the following command: scripts/run-regression-tests -k 2.6.28.8

Signed-off-by: Bart Van Assche <bart.vanassche@gmail.com>



git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@712 d57e44dd-8a1f-0410-8b47-8ef2f437770f
2009-03-23 19:32:32 +00:00
Vladislav Bolkhovitin
27c5d8dcdf The patch below fixes the following recently introduced checkpatch complaints:
* use tabs not spaces
* Macros with complex values should be enclosed in parenthesis.
* printk() should include KERN_ facility level.
The patch below has been verified by reviewing it carefully and by verifying the output of the following command: scripts/run-regression-tests -k 2.6.28.8

Signed-off-by: Bart Van Assche <bart.vanassche@gmail.com>



git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@707 d57e44dd-8a1f-0410-8b47-8ef2f437770f
2009-03-20 12:36:01 +00:00
Vladislav Bolkhovitin
159ef466dc - Support for SCSI AENs added
- Now sense data are sent without additional memory allocation and copy

 - Sending and receiving padding bytes reimplemented

 - Cleanups



git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@699 d57e44dd-8a1f-0410-8b47-8ef2f437770f
2009-03-17 18:05:19 +00:00
Vladislav Bolkhovitin
f9b9d824c6 Session and connection reinstation fixes for cases when they are shutting down and request for reinstation comes.
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@692 d57e44dd-8a1f-0410-8b47-8ef2f437770f
2009-03-06 19:04:48 +00:00
Vladislav Bolkhovitin
bc7c69bfc4 - Fixed a major IET-derived iSCSI RFC violation: sessions and connections were not working
- A lot of cleanups and minor fixes, mostly IET-derived



git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@685 d57e44dd-8a1f-0410-8b47-8ef2f437770f
2009-03-03 18:13:23 +00:00
Vladislav Bolkhovitin
b240091109 Final merge with IET (r201-204):
- 2.6.25 introduced netlink_socket_release(), to be used to clean up netlink sockets correctly (taking care of namespaces).

 - New more scalable proc seq_file implementation

+ minor signess cleanups

+ version updated



git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@654 d57e44dd-8a1f-0410-8b47-8ef2f437770f
2009-01-30 17:47:31 +00:00
Vladislav Bolkhovitin
ba698dbdd5 - Fix for iSCSI RFC violation: TARGET COLD RESET must close all connections/sessions, not only the current one
- Cleanups



git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@648 d57e44dd-8a1f-0410-8b47-8ef2f437770f
2009-01-29 18:25:45 +00:00
Vladislav Bolkhovitin
9013ab1315 Signed/unsigned cleanups
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@586 d57e44dd-8a1f-0410-8b47-8ef2f437770f
2008-11-28 16:11:51 +00:00
Vladislav Bolkhovitin
b0c6d9a561 The patch below fixes many checkpatch warnings triggered by the iSCSI kernel
code, mainly about lines that exceeded 80 columns. As you can see in the patch
below most lines that were too long have been split, but some code has also
been moved into helper functions in order to keep the code readable. No
functionality has been changed.

This patch has been verified as follows:
- Reread the patch carefully.
- Verified that the iSCSI target kernel module still loads.
- Verified the output generated by scripts/run-regression-tests -k 2.6.27.5.

Signed-off-by: Bart Van Assche <bart.vanassche@gmail.com>

with some modifications



git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@569 d57e44dd-8a1f-0410-8b47-8ef2f437770f
2008-11-12 18:49:18 +00:00
Vladislav Bolkhovitin
01f7f50dc4 The patch below fixes the following class of checkpatch warnings:
WARNING: %Ld/%Lu are not-standard C, use %lld/%llu

This patch has been tested by verifying that the SCST sources still compile
fine (make -s clean && make -C srpt -s clean && make -s scst iscsi-scst && make -C srpt -s).

Signed-off-by: Bart Van Assche <bart.vanassche@gmail.com>



git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@514 d57e44dd-8a1f-0410-8b47-8ef2f437770f
2008-10-06 17:22:17 +00:00
Vladislav Bolkhovitin
20a2e4ae8d Copyrights updated
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@408 d57e44dd-8a1f-0410-8b47-8ef2f437770f
2008-06-12 11:39:28 +00:00
Vladislav Bolkhovitin
f8521e2a68 Patch from Bart Van Assche <bart.vanassche@gmail.com>:
The patch below fixes all remaining checkpatch errors:
- ERROR: do not use assignment in if condition
- ERROR: that open brace { should be on the previous line
- ERROR: trailing whitespace
- ERROR: use tabs not spaces
The last three had already been fixed before, but some occurences were
reintroduced in r403. It would be great if new modifications could be checked
for checkpatch errors before being committed.

This patch has been tested as follows:
- Reread the patch below carefully.
- Verified that make -s clean && make -s iscsi scst && make -s -C srpt
  still works and does not trigger any compiler warnings.
- Verified that checkpatch does no longer report any errors.
- Checked that the patch generated by generate-kernel-patch still applies
  cleanly to the 2.6.25.4 kernel, and that the patched kernel tree still
  compiles, installs and boots fine, and that the iscsi-scst, ib_srpt,
  scst_disk and scst_vdisk modules still load.
- Tested that iSCSI login/logout still works from a remote system, and that
  iSCSI I/O still works.

Signed-off-by: Bart Van Assche <bart.vanassche@gmail.com>



git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@404 d57e44dd-8a1f-0410-8b47-8ef2f437770f
2008-06-12 11:22:15 +00:00
Vladislav Bolkhovitin
dc7820544d Patch from Bart Van Assche <bart.vanassche@gmail.com>:
While all warnings on mismatches between printf-style format strings and
argument lists were fixed on i386 and x86_64, gcc prints a large number of
warnings about mismatches when compiling SCST on ppc64. The patch below
fixes these by casting integer arguments to the type (long long unsigned int)
where appropriate.

This patch has been tested as follows:
- Verified the patch by reading it.
- Checked that make -s clean && make -s iscsi scst && make -s -C srpt did not
  trigger any compiler warnings about format strings on i386, x86_64 and ppc.
- Checked that no previously fixed checkpatch warnings were reintroduced in
  the patch generated by generate-kernel-patch.
- Checked that the patch generated by generate-kernel-patch still applies
  cleanly to the 2.6.25.4 kernel, and that the patched kernel tree still
  compiles, installs and boots fine.

Additionally, this patch splits a kernel version preprocessor test from one into two lines, such that
the generate-kernel-patch script can process the version check properly.

Signed-off-by: Bart Van Assche <bart.vanassche@gmail.com>



git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@397 d57e44dd-8a1f-0410-8b47-8ef2f437770f
2008-05-26 11:13:04 +00:00