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90 Commits

Author SHA1 Message Date
Bart Van Assche
904b3c1eb3 iscsi-scst: Kernel 3.19 build fix 
Change the data type of iscsi_conn.read_iov into struct kvec * and
switch from iscsi_conn.read_size to iscsi_conn.read_msg.count for
kernel version 3.19 and later. Cast the return type of
get_zeroed_page() to void * since with this patch the read_iov
data type depends on the kernel version. Remove the (void __force
__user *) casts when assigning to iov_base since for a kvec iov_base
is a kernel pointer instead of a user space pointer. Switch to
iov_iter_kvec() to initialize conn->read_msg.msg_iter.

Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
 2015-04-13 18:44:00 +02:00
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
c8d86e2811 Source code spelling fix: accesss -> access 
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@5944 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2014-12-22 12:28:56 +00:00
Bart Van Assche
23bfab0626 iscsi-scst: Make iscsi_thread_pool locking more fine-grained 
Protect iscsi_thread_pool.threads_list via tp_mutex instead of
scst_mutex.


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@5852 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2014-10-18 08:56:23 +00:00
Vladislav Bolkhovitin
b5c649ef5c Update for 3.15 kernels 
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@5610 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2014-06-19 03:51:48 +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
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
e9008a5b12 Fix possible BUG_ON() on multiple forced commands release 
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@4513 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2012-09-11 20:38:57 +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
69d8c2fbd7 Change __attribute__((packed)) into __packed and 
__attribute__((aligned(x))) into __aligned(x) in kernel code since
checkpatch complains about the former.

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



git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@3952 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2011-12-06 03:02:13 +00:00
Vladislav Bolkhovitin
c54ebba11a Some more TM cleanups/improvements 
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@3460 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2011-05-18 21:45:09 +00:00
Vladislav Bolkhovitin
5e7544e5a4 TM handling fixes, part2, hopefully, final. 
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@3450 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2011-05-12 01:31:01 +00:00
Vladislav Bolkhovitin
70eb596f60 Rework iSCSI aborts to make them more correct and remove recent workarounds (one more post-IET cleanup) 
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@3444 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2011-05-09 23:07:23 +00:00
Vladislav Bolkhovitin
3c59daab2a Correctly process being read cmd during abort 
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@3413 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2011-04-26 00:04:01 +00:00
Vladislav Bolkhovitin
64065a21e9 NOP-In/response timeouts improvements 
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@3411 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2011-04-25 23:50:49 +00:00
Vladislav Bolkhovitin
16f654b5ad Update for 2.6.38 
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@3294 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2011-03-21 14:10:50 +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
52820b5d57 Cleanup 
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@2720 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2010-11-17 11:40:08 +00:00
Vladislav Bolkhovitin
27ed60c19d Let's be safe and always do memory barrier after all *_get(). 
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@2462 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2010-10-25 13:09:47 +00:00
Vladislav Bolkhovitin
929b4db422 Slightly modified patch from Bart Van Assche <bvanassche@acm.org> fixing build breakage on not too recent kernels introduced by r2317 
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@2324 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2010-10-01 12:09:26 +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
Bart Van Assche
5b33692678 More upstream include path conversions. 
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@2076 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2010-09-09 15:27:54 +00:00
Vladislav Bolkhovitin
3120885a46 - Eliminate theorethically possible race leading to sending wrong max_sn to initiators 
- Alignment cleanups



git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@2022 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2010-08-30 20:34:17 +00:00
Vladislav Bolkhovitin
1607d12c9c Sysfs cleanups and fixes, part 1 
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@1962 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2010-08-20 15:38:21 +00:00
Vladislav Bolkhovitin
7eddeb82ab - Some iSCSI performance fixes 
- __attribute__((aligned(sizeof(long))) added to all field with different protection than the previous field to make sure they don't share the same bus line. Just in case, actually, compiler should do the alignment by default.

 - Small docs updates.



git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@1948 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2010-08-13 18:12:45 +00:00
Vladislav Bolkhovitin
ecaabfc08c Patch fixing sparse warnings related to digest calculation 
Signed-off-by: Bart Van Assche <bart.vanassche@gmail.com>



git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@1881 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2010-07-27 18:34:07 +00:00
Vladislav Bolkhovitin
2f667fe80f Part of the patch from Bart Van Assche <bvanassche@acm.org> fixing/suppressing iscsi-scst related endianness warnings reported by sparse with some changes 
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@1828 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2010-07-15 17:45:41 +00:00
Vladislav Bolkhovitin
78edc5afb9 Various cleanups and fixes after some errors injection tests. Particularly: 
- ISCSI preliminary completed commands handling fixes
 - Write residuals cleanups and fixes
 - Interface to handle residuals and received from initiators data changed
 - BIDI cleanups and fixes.
 - All BIDI IN fields and functions renamed to OUT to be in line with the in-kernel convention

+ 

Docs updated



git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@1780 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2010-06-23 13:57:35 +00:00
Vladislav Bolkhovitin
8c05a7f350 Residuals and write residuals counting fixes 
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@1742 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2010-06-04 19:43:02 +00:00
Vladislav Bolkhovitin
0007914f1d Make RX data digest failures handling more smart 
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@1731 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2010-06-01 11:35:27 +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
Vladislav Bolkhovitin
17db798a36 Make enable_target() interface more clear 
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@1539 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2010-03-10 11:56:15 +00:00
Vladislav Bolkhovitin
256b25cc0f - Dev handler sysfs interface changed to match new unified rules 
- Docs updated
 - Other minor fixes, improvements and cleanups



git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@1538 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2010-03-09 19:36:48 +00:00
Vladislav Bolkhovitin
88e5601df0 Deeply reworked patch from Alexey Obitotskiy <alexeyo1@open-e.com> implementing support for sending NOP-In requests 
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@1533 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2010-03-05 12:56:20 +00:00
Vladislav Bolkhovitin
713410951b Minor fixes and cleanups 
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@1520 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2010-02-25 13:37:56 +00:00
Bart Van Assche
93e5dcab3c Removed trailing whitespace because checkpatch complained about it. 
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@1518 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2010-02-21 19:30:39 +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
2d083413a1 Fixed a sparse error that was introduced in r1324. 
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@1327 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2009-11-07 10:15:23 +00:00
Vladislav Bolkhovitin
6153a079a3 iSCSI target sysfs "enabled" attribute implemented 
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@1324 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2009-11-06 18:41:37 +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
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