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4,759 Commits 27 Branches 11 Tags
8fdd45a8299c3eda3c552fcbb7599484b4eb0175
Commit Graph
658 Commits
Author SHA1 Message Date
Bart Van Assche 175463ca84 isert-scst: Fix race condition between login request and scst teardown flow 
On scst teardown we call rdma_disconnect() on all connections.
this moves the qps to error state and flushes all the wc, including
the drain wc which will results in kref_put of the connection.

In a race condition with the connection request, we might be only in
the init stage of the ref, and calling kref_put will result in refcount
0 and freeing the connection while establishing it.

Call the first kref_get before rdma_accept() to prevent this race.

Signed-off-by: Ariel Nahum <arieln@mellanox.com>
Signed-off-by: Yan Burman <yanb@mellanox.com>


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6486 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-08-27 17:53:32 +00:00
Bart Van Assche dba2b1ac6b isert: Only set WR next pointer when needed 
Signed-off-by: Yan Burman <yanb@mellanox.com>


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6482 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-08-25 21:40:41 +00:00
Bart Van Assche 4fcec5f359 isert: Only set signalled flag when needed 
Do not set signalled flag and then zero it for unneeded cases.
Instead only set it when necessary
    
Signed-off-by: Yan Burman <yanb@mellanox.com>


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6481 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-08-25 21:40:11 +00:00
Bart Van Assche 58cfc4f8b8 iscsi: Only use thread pool for TCP but not for iSER 
Signed-off-by: Yan Burman <yanb@mellanox.com>


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6480 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-08-25 21:39:39 +00:00
Vladislav Bolkhovitin 45d7f40ec1 Improve release logging 
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6478 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-08-25 02:57:51 +00:00
Vladislav Bolkhovitin 20f523a1b3 Cleanup 
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6477 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-08-25 02:56:08 +00:00
Bart Van Assche 7a9e1f1889 isert: Limit isert_nr_devs parameter to maximum we support 
Signed-off-by: Yan Burman <yanb@mellanox.com>


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6461 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-08-03 18:48:24 +00:00
Bart Van Assche 9105e9cf5d isert: Don't overwrite userspace if insufficient buffer is provided 
Signed-off-by: Yan Burman <yanb@mellanox.com>


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6460 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-08-03 18:46:16 +00:00
Vladislav Bolkhovitin e5e54f312b iscsi-scst: Move old TM response dropping to preparing new response stage 
The second TM request can come while the old one, response for which is
going to be delayed, is still being processed, hence no response
prepared yet, so the delayed response should be dropped on the stage of
the new response preparing. Otherwise in this place the old delayed
response will trigger BUG_ON().



git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6456 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-07-31 01:09:58 +00:00
Bart Van Assche 7a2d9043f6 isert: Fix use-after-free when work requests were submitted after drain_wr 
We were submitting work requests sometimes after the drain_wr,
so we would try to process flushes on something that is already
destroyed. This can be seen with very high login/logout load.

Signed-off-by: Yan Burman <yanb@mellanox.com>


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6428 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-07-27 15:26:09 +00:00
Bart Van Assche 6c0a869007 isert-scst: Linux kernel v4.2 ib_create_cq() build fix 
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6427 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-07-14 23:57:42 +00:00
Bart Van Assche d05518f5bc isert-scst: Kernel v4.2 build fix 
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6425 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-07-14 23:47:50 +00:00
Bart Van Assche 8eb3f31eea iscsi-scst: Fix parameter order in a debug statement 
Signed-off-by: Alexey Obitotskiy <mobbitster@gmail.com>


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6421 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-07-14 21:50:51 +00:00
Bart Van Assche ebcfc73439 isert: Allocate sge and wr structures dynamically 
In order to be able to support large block sizes (larger than 512K),
we allocate required structured in a lazy fashion. This way we both support
large block sizes (over 512K and even over 1M). We also lower memory footprint
when smaller block sizes are used.

Signed-off-by: Yan Burman <yanb@mellanox.com>


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6418 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-07-11 03:41:15 +00:00
Bart Van Assche 993f290908 isert-scst: Port this driver to RHEL 5 
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6416 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-07-10 22:27:37 +00:00
Bart Van Assche f92a917d45 iscsi-scst: Suppress strict aliasing compiler warnings 
Avoid that the compiler reports warnings about strict aliasing when
building iscsi-scst on RHEL 6. This patch does not change any
functionality.


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6414 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-07-10 22:22:57 +00:00
Vladislav Bolkhovitin 1656efe689 iscsi-scst: small post-r6315 cleanup 
Avoid that rd_task declared when it is not used



git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6408 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-07-03 04:21:52 +00:00
Bart Van Assche 75369451a5 isert-scst/Kconfig: Add InfiniBand dependency 
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6402 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-25 14:12:54 +00:00
Bart Van Assche 79c8bf1f7c iscsi-scst, isert-scst: One trace flags variable per kernel module 
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6397 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-23 15:01:17 +00:00
Bart Van Assche f0e98ee4b2 isert-scst: Build fix for older kernel versions (< 2.6.29) 
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6395 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-19 14:06:05 +00:00
Bart Van Assche 46915ef3e5 iscsi-scst: Fix a syntax error 
Preprocessor directives are not allowed in argument lists of a macro.
This patch reverts r6317.


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6393 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-17 05:00:20 +00:00
Bart Van Assche 11df045449 iscsiadm: Fix a resource leak in an error path 
Detected by Coverity.


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6389 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-17 00:32:53 +00:00
Bart Van Assche bb0a7c894a iscsi-scstd: Annotate a fall-through for Coverity 
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6388 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-17 00:32:27 +00:00
Bart Van Assche 476d0ba898 iscsi-scstd: Constify several function arguments 
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6387 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-17 00:32:02 +00:00
Bart Van Assche f05dfcf88f iscsi-scstd: Suppress a compiler warning 
Avoid that gcc reports the following compiler warning:
    
message.c:197:44: warning: 'rsp_data_sz' may be used uninitialized in this function [-Wmaybe-uninitialized]


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6386 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-17 00:31:20 +00:00
Bart Van Assche 8a4e41fb44 iscsi-scstd: Allow the compiler to inline functions 
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6385 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-17 00:30:40 +00:00
Bart Van Assche a8da0107f8 iscsiadm: Fix a resource leak 
Detected by Coverity.


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6380 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-17 00:28:02 +00:00
Bart Van Assche ad38432332 iscsiadm: Fix strerror() argument 
Detected by Coverity.


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6379 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-17 00:27:41 +00:00
Bart Van Assche a14df39942 iscsiadm: Do not allocate more memory than needed 
Detected by Coverity.


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6378 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-17 00:27:18 +00:00
Bart Van Assche ff2b660264 iscsiadm: Fix a file descriptor leak in an error path 
Detected by Coverity.


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6377 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-17 00:26:35 +00:00
Bart Van Assche f5f85b95fb iscsi-scstd: Fix a resource leak in an error path 
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6376 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-17 00:26:08 +00:00
Bart Van Assche a6121b03c8 iscsi-scstd: Fix a potential file descriptor leak 
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6375 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-17 00:25:42 +00:00
Bart Van Assche 74b4104994 iscsi-scstd: Avoid that Coverity complains about a use-after-free 
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6374 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-17 00:25:05 +00:00
Bart Van Assche b3f49a0a17 iscsi-scstd: Annotate fall-throughs for Coverity 
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6373 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-17 00:24:25 +00:00
Bart Van Assche 102d8d54c9 iscsi-scstd: Move two local variables to suppress a Coverity complaint 
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6372 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-17 00:24:03 +00:00
Bart Van Assche 41caee3148 iscsi-scstd: Fix a file descriptor leak in an error path 
Detected by Coverity.


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6371 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-17 00:23:38 +00:00
Bart Van Assche 21b60063a9 iscsi-scstd: Fix a dereference-before-null-check 
Detected by Coverity.



git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6370 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-17 00:23:14 +00:00
Bart Van Assche b099782023 iscsi-scstd: Fix a memory leak in the iSNS code 
Detected by Coverity.


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6369 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-17 00:22:46 +00:00
Bart Van Assche dfcb53a9b2 iscsi-scstd: Rearrange driver major number lookup code 
Introduce a function for looking up the driver major number.
This patch does not change any functionality but makes the source
code easier to read and also makes it easier for Coverity to
analyze this code.


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6368 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-17 00:22:14 +00:00
Bart Van Assche 165b0f1d10 iscsi-scstd: Improve create_and_open_dev() robustness 
Reset 'devn' if the sscanf() return value is lower than two.
Based on a Coverity report.


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6367 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-17 00:21:28 +00:00
Bart Van Assche d70b1e39c0 iscsi-scstd: Fix a dereference-before-null-check 
Detected by Coverity.


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6366 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-17 00:20:21 +00:00
Bart Van Assche 40a90a705d isert-scst: Add address length check in isert_listen_ioctl() 
Detected by Coverity.



git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6365 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-17 00:19:27 +00:00
Bart Van Assche 26cda0eb38 iscsi-scst: Annotate fall-through cases for Coverity 
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6364 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-17 00:18:23 +00:00
Bart Van Assche 63cb4a9d40 iscsi-scst: Fix indentation 
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6363 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-17 00:09:23 +00:00
Bart Van Assche 612fac9874 isert: Declare a local function static 
Detected by checkpatch.


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6354 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-16 23:55:52 +00:00
Bart Van Assche eb10fe3f7d iscsi-scst: Surround complex values with parentheses 
Detected by checkpatch.


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6353 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-16 23:55:22 +00:00
Bart Van Assche dce5cbc1cb iscsi-scst/README: Add a reference 
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6348 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-16 23:52:10 +00:00
Bart Van Assche f272064c12 iscsi-scst: Suppress put_page_callback patch warnings 
The put_page_callback patch only improves performance on single
socket systems but not on systems with multiple CPU sockets.
Since this message is confusing to SCST users, do not print a
warning if the put_page_callback patch has not been applied.



git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6340 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-16 23:10:28 +00:00
Bart Van Assche 6b3f45696a RHEL 7.1: Add put_page_callback patch 
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6336 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-16 20:17:52 +00:00
Bart Van Assche 807c4eacf0 isert: Use break in default case 
Detected by checkpatch.


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6328 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-16 18:51:47 +00:00