Commit Graph

24 Commits

Author SHA1 Message Date
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
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
bda620b65a - Connection reinstatement fixes
- Minor cleanups



git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@687 d57e44dd-8a1f-0410-8b47-8ef2f437770f
2009-03-04 18:31:35 +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
ea7e57886e The patch below fixes the sparse warnings on passing a __user pointer where a
kernel pointer is expected and vice versa. Additionally, there are a few fixes
for checkpatch warnings on trailing whitespace and lines that were over 80
columns.

This patch has been verified by reviewing it carefully and by verifying the
output files of the command scripts/run-regression-tests -k 2.6.27.6.

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



git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@579 d57e44dd-8a1f-0410-8b47-8ef2f437770f
2008-11-21 10:15:03 +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
cc28ddcdf2 Apparently the SCST code with debugging and/or tracing enabled compiles fine as
an external module. When applying the SCST kernel patch to the mainstream 
kernel tree with debugging and/or tracing enabled however, the resulting code
triggers a compiler error. This is because the symbols DEBUG and TRACING
conflict with symbols with the same named defined in unrelated kernel headers.
The patch below resolves these conflicts by renaming the following preprocessor 
symbols:
- DEBUG into CONFIG_SCST_DEBUG.
- DEBUG_DIGEST_FAILURES into CONFIG_SCST_ISCSI_DEBUG_DIGEST_FAILURES.
- DEBUG_OOM into CONFIG_SCST_DEBUG_OOM.
- DEBUG_RETRY into CONFIG_SCST_DEBUG_RETRY.
- DEBUG_SN into CONFIG_SCST_DEBUG_SN.
- DEBUG_TM into CONFIG_SCST_DEBUG_TM.
- EXTRACHECKS into CONFIG_SCST_EXTRACHECKS.
- SCST_HIGHMEM into CONFIG_SCST_HIGHMEM.
- STRICT_SERIALIZING into CONFIG_SCST_STRICT_SERIALIZING.
- TM_DBG_GO_OFFLINE into CONFIG_SCST_TM_DBG_GO_OFFLINE. Mapped 0/1 values
  into macro undefined / macro defined.
- TRACING into CONFIG_SCST_TRACING.
- USE_EXPECTED_VALUES into CONFIG_SCST_USE_EXPECTED_VALUES.
- In qla_isp/linux/isp_scst.c, renamed DEBUG into DEBUG_ISP_SCST.
- In qla_isp/..., renamed SCSI_TARGET in SCST_SCSI_TARGET.
- In qla_isp/..., renamed SCSI_TARGET_DEV in SCST_SCSI_TARGET_DEV.
Additionally, all CONFIG_SCSI_TARGET* macro's are renamed into CONFIG_SCST* in
order to avoid confusion between the STGT CONFIG-symbols and the SCST CONFIG-
symbols.

The following additional options are now configurable through Kconfig:
- CONFIG_SCST_ISCSI_DEBUG_DIGEST_FAILURES
- CONFIG_SCST_STRICT_SERIALIZING
- CONFIG_SCST_STRICT_SECURITY
- CONFIG_SCST_ALLOW_PASSTHROUGH_IO_SUBMIT_IN_SIRQ
- CONFIG_SCST_ABORT_CONSIDER_FINISHED_TASKS_AS_NOT_EXISTING
- CONFIG_SCST_USE_EXPECTED_VALUES
- CONFIG_SCST_DEBUG_OOM
- CONFIG_SCST_DEBUG_RETRY
- CONFIG_SCST_DEBUG_SN
- CONFIG_SCST_DEBUG_TM
- CONFIG_SCST_TM_DBG_GO_OFFLINE

The patch below has been verified as follows:
- Verified that the following command does not print any new warning messages:
  make -s clean && make -C srpt -s clean && make -s scst iscsi-scst && make -C srpt -s
- Verified as follows that the internal SCST patches still apply cleanly:
  for p in *patch; do patch -p0 --dry-run -f -s <$p; done
- Checked that the patch generated by generate-kernel-patch still applies
  cleanly to the 2.6.25.7 kernel, and that the patched kernel tree still
  compiles, installs and boots fine, that the iscsi-scst, ib_srpt,
  scst_disk and scst_vdisk modules still load, and that iSCSI communication
  still works fine. All SCST kernel configuration options that could be
  enabled have been enabled during this test.

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



git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@453 d57e44dd-8a1f-0410-8b47-8ef2f437770f
2008-07-10 10:49:06 +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
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
Vladislav Bolkhovitin
56e642cf77 Patch from Bart Van Assche <bart.vanassche@gmail.com>:
The patch below implements the following changes:
- Fixes the remaining warnings reported by checkpatch.pl with regard to the use
  of whitespace in C code.
- Adds double qoutes around some #warning messages, such that checkpatch.pl
  does no longer try to interprete the text behind the #warning preprocessor
  directive.
- Adds an extra conversion to the generate-kernel-patch script that removes
  the single space from before goto-labels while generating the kernel patch.

This patch has been tested as follows:
- Verified that svn diff -x -w only shows changes in the #warning preprocessor directives.
- Verified the output of svn diff by reading it.
- Verified that checkpatch.pl does no longer complain on the use of whitespace
  (searched through the checkpatch.pl output for the text ' space').
- Verified that the patch generated by the generate-kernel-patch script still
  applies cleanly to the 2.6.24 kernel, and that the patched kernel still compiles cleanly.

Please let me know if I have to resubmit parts of this patch to other SCST authors.

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



git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@381 d57e44dd-8a1f-0410-8b47-8ef2f437770f
2008-05-21 11:56:09 +00:00
Vladislav Bolkhovitin
1213800b2f Patch from Bart Van Assche <bart.vanassche@gmail.com>, except few chuncks from qla2x00t/ obviously not related to the target mode addon:
One of the Linux kernel patch submission requirements is that source files do
not contain trailing whitespace. The patch below removes trailing whitespace
from .c and .h source files.

Note: it might be more convenient to run the script I used to generate this
patch than to review and apply the patch below. This is how I generated and
verified the patch below:

cat <<EOF >./strip-trailing-whitespace
#!/bin/bash
trap "rm -f $t" EXIT
t=/tmp/temporary-file.$$
for f in "$@"
do
  sed 's/[	 ]*$//' <"$f" >"$t" && mv "$t" "$f"
done
EOF
chmod a+x ./strip-trailing-whitespace
find -name '*.[ch]' | xargs ./strip-trailing-whitespace
svn diff -x -w

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



git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@377 d57e44dd-8a1f-0410-8b47-8ef2f437770f
2008-05-19 10:21:41 +00:00
Vladislav Bolkhovitin
925fbcdda3 The bunch of pending changes. Sorry, it's quite big.
- "RECEIVE DIAGNOSTIC RESULTS" command handling fixed
 - Obtaining device queue parameters in scst_obtain_device_parameters() changed to handle NOT READY sense
 - Fixed possible dev_cmd_count underflow
 - Minor iSCSI-SCST connection closing cleanups and fixes
 - Semantic of other *_atomic flags changed a bit. Now they are intended only to allow SCST to optimize execution context. The corresponing functions now can *always* be called on atomic context and, if necessary, should manually determine that using scst_cmd_atomic() function and restart using corresponding *_NEED_THREAD_* return value.
 - scst_cmd_get_tgt_resp_flags() and SCST_TSC_FLAG_STATUS flag made obsolete and replaced by scst_cmd_get_is_send_status(). All in-tree drivers updated accordingly
 - Cleanup: preprocessing_done_atomic removed, now preprocessing_done() callback always called on thread context
 - 64-bit cleanups
 - Documented that iscsi-scst-adm is currently broken and explained why
 - In user space Makefile's added possibility to specify external linker flags
 - Minor performance optimizations
 - Other minor cleanups


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@350 d57e44dd-8a1f-0410-8b47-8ef2f437770f
2008-04-22 10:30:53 +00:00
Vladislav Bolkhovitin
7fcabadf56 - Fixed race on TM leading to crashes
- Connection close improved to be less agressive and honor TCP TIME_WATE state
 - Docs updates


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@301 d57e44dd-8a1f-0410-8b47-8ef2f437770f
2008-03-11 19:09:30 +00:00
Vladislav Bolkhovitin
f17ee9c61b - Fixes for previous commit
- Minor logging improvements


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@296 d57e44dd-8a1f-0410-8b47-8ef2f437770f
2008-02-26 18:22:45 +00:00
Vladislav Bolkhovitin
9a48ab9d18 A bunch of pending changes:
- Response data send timeout implemented: now if initiator doesn't accept data for too long (7 sec), target closes connection
 - Connction closing improved: now session cleared without need to wait for all outstanding commands data fully transmitted
 - On session unregistration now all outstanding commands are implicitely aborted
 - TM processing in SCST core made independant from other TM commands (before they were serialized)
 - Few bug fixes
 - Other minor improvements and cleanups
 - Docs update


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@295 d57e44dd-8a1f-0410-8b47-8ef2f437770f
2008-02-25 18:48:02 +00:00
Vladislav Bolkhovitin
1964293ff1 - Important iSCSI stability on connection close fixes.
- Latency measurements improvements
 - Minor improvements and logging changes


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@246 d57e44dd-8a1f-0410-8b47-8ef2f437770f
2008-01-18 19:13:04 +00:00
Vladislav Bolkhovitin
7ab4d3e638 - Processing latency measurement facility added
- README updated
 - Minor fixes


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@245 d57e44dd-8a1f-0410-8b47-8ef2f437770f
2008-01-14 18:21:01 +00:00
Vladislav Bolkhovitin
02ca798c81 Minor logging changes
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@241 d57e44dd-8a1f-0410-8b47-8ef2f437770f
2007-12-31 11:42:23 +00:00
Vladislav Bolkhovitin
e819486311 - Fixed huge iSCSI RFC violation, inherited from IET: incorrect commands ordering.
- TM fixes related to new commands serialization
 - Other TM improvements
 - Minor changes: likely/unlikely and priority of mgmt threads

Work not fully completed, still there are some rare issues.


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@240 d57e44dd-8a1f-0410-8b47-8ef2f437770f
2007-12-29 17:04:13 +00:00
Vladislav Bolkhovitin
70f471427a Minor fixes and improvements
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@235 d57e44dd-8a1f-0410-8b47-8ef2f437770f
2007-12-14 16:43:23 +00:00
Vladislav Bolkhovitin
71592f2cac Cleanups, debug imporvements and minor fixes
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@214 d57e44dd-8a1f-0410-8b47-8ef2f437770f
2007-11-01 17:07:07 +00:00
Vladislav Bolkhovitin
d224057476 Copyrights updated
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@166 d57e44dd-8a1f-0410-8b47-8ef2f437770f
2007-08-23 15:28:18 +00:00
Vladislav Bolkhovitin
e6a57baa14 The initial commit of iSCSI-SCST
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@162 d57e44dd-8a1f-0410-8b47-8ef2f437770f
2007-08-15 09:28:54 +00:00