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880 Commits

Author SHA1 Message Date
Robert Baldyga
76684ed8a9
Merge pull request #642 from robertbaldyga/parallelize 
Parallelize metadata initialization
 2022-02-07 13:53:45 +01:00
Robert Baldyga
e30fd48338
Merge pull request #656 from jfckm/extend-metadata-probe 
Include cache mode and cache line size in metadata probe
 2022-02-04 13:01:10 +01:00
Jan Musial
8522b0b6e6 Include cache mode and cache line size in metadata probe 
Signed-off-by: Jan Musial <jan.musial@intel.com>
 2022-02-04 08:15:05 +01:00
Robert Baldyga
c176daeec1
Merge pull request #640 from pdebski21/superblock_mismatch 
added error code for superblock mismatch
 2022-02-03 15:30:03 +01:00
Robert Baldyga
6a665ea6b1 Shuffle entries within freelists 
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2022-01-31 06:59:28 +01:00
Robert Baldyga
481e5b7b9b Introduce bisect generator utility 
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2022-01-31 06:59:28 +01:00
Robert Baldyga
93391c78d8 Parallelize ACP recovery 
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2022-01-31 06:59:28 +01:00
Robert Baldyga
b70492ad3d Parallelize ALRU recovery 
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2022-01-31 06:59:28 +01:00
Robert Baldyga
8cc71cc9cb Remove ocf_cleaning_init_cache_block() from metadata rebuild 
Cleaning policy initializaton initializes metadata for all cache lines
anyway, so this step is not needed.

Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2022-01-28 19:30:41 +01:00
Robert Baldyga
48bed40dd7 Reconstruct freelist during metadata rebuild 
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2022-01-28 19:30:39 +01:00
Robert Baldyga
f3e4f8c2db Parallelize ocf_mngt_rebuild_metadata() 
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2022-01-28 19:29:52 +01:00
Robert Baldyga
036aca41b3 Parallelize ocf_lru_populate() 
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2022-01-28 19:29:21 +01:00
Robert Baldyga
6611b25d1e Initialize LRU lists in domain of cache lines 
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2022-01-28 19:29:21 +01:00
Robert Baldyga
57fd5c1f20 Introduce ocf_parallelize utility 
Introduce utility that allows to parallelize management operation across
all available io queues.

Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2022-01-28 19:29:21 +01:00
Robert Baldyga
a947127f55 Introduce ocf_lru_add_free() function 
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2022-01-28 19:29:21 +01:00
Robert Baldyga
b82d30a0ef Add missing hb lock functions implementation 
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2022-01-28 19:29:21 +01:00
Robert Baldyga
25e2551964 Check core status during recovery based on core metadata 
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2022-01-28 19:29:21 +01:00
Robert Baldyga
568c565497 Init properties before loading superblock 
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2022-01-28 19:29:21 +01:00
Piotr Debski
9b980d3f22 fix for issue #1023 
Better error for core size mismatch during activation/load

adding pyocf test for new error code

Signed-off-by: Piotr Debski <piotr.debski@intel.com>
 2022-01-25 05:18:16 +01:00
Robert Baldyga
f4daf05237
Merge pull request #639 from arutk/eha 
Fix error handling in cache attach
 2022-01-19 15:26:34 +01:00
Robert Baldyga
fb8bea67b6 Set core_seq_no only in atomic mode 
This prevents using up pool of seq numbers in normal mode and blocking
addition of any new cores.

Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2022-01-19 11:38:12 +01:00
Adam Rutkowski
a32a787e3d Fix error handling in cache attach 
Only close cores in error handling if attach parameter "open_cores" is
set to true.

Signed-off-by: Adam Rutkowski <adam.j.rutkowski@intel.com>
 2022-01-13 17:26:47 +01:00
Michal Mielewczyk
5d74aec921 Add missing return in raw_ram_zero() in error path 
Signed-off-by: Michal Mielewczyk <michal.mielewczyk@intel.com>
 2022-01-12 07:46:49 +01:00
Adam Rutkowski
294e02bc1b Fail cache recovery in case of erroneous mapping 
Signed-off-by: Adam Rutkowski <adam.j.rutkowski@intel.com>
 2022-01-10 11:10:02 +01:00
Piotr Debski
609a22cfda added ERROR code for superblock mismatch 
Signed-off-by: Piotr Debski <piotr.debski@intel.com>
 2022-01-08 23:06:10 +01:00
Adam Rutkowski
9693b82cf9 Only flush superblock at the end of cache attach 
The purpose of this change is not to write superblock to the cache
drive untill all other sections are initilized on disk in attach()
path. Combined with superblock clearing at the erarlier stage of
attach(), this assures there are no residual mappings in the collision
section in case of power failure during attach with pre-existing
metadata.

This is implemented by removing ocf_metadata_flush_all_set_status() step
at the beginning of ocf_metadata_flush_all().
ocf_metadata_flush_all() is called, except for the attach() case described
above, in two cases:
1. at the end of cache load - potentially after cache recovery
2. during detaching cache drive in cache stop.

To make sure there are no regressions in the first case, an explicit
_ocf_mngt_attach_shutdown_status() is added to load pipeline before
ocf_metadata_flush_all(). The second case is always ran after cache
drive is attached, so dirty status bit must have already be written to
the disk.

Signed-off-by: Adam Rutkowski <adam.j.rutkowski@intel.com>
 2022-01-05 13:06:59 +01:00
Adam Rutkowski
196437f9bc Zero superblock before writing metadata 
This is the first step towards atomic initialization of metadata
on cache disk.

Signed-off-by: Adam Rutkowski <adam.j.rutkowski@intel.com>
 2022-01-05 13:06:59 +01:00
Robert Baldyga
c6644116ae
Merge pull request #614 from robertbaldyga/redesign-standby 
Redesign failover standby API
 2022-01-04 14:07:05 +01:00
Robert Baldyga
4aa3d8f9df Remove "unsafe" path from standby load 
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2022-01-03 20:10:40 +01:00
Jan Musial
ae18ce274e Fix cache size requirements and some logging 
Signed-off-by: Jan Musial <jan.musial@intel.com>
 2022-01-03 14:30:07 +01:00
Robert Baldyga
b40fa0c2bf Fix closing volume on standby stop 
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2021-12-29 20:54:45 +01:00
Robert Baldyga
86a2896bcf Rename "bind" to "standby" 
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2021-12-29 20:32:03 +01:00
Robert Baldyga
b25cd91b86 Remove unused ocf_metadata_load_unsafe() 
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2021-12-29 20:31:43 +01:00
Robert Baldyga
716b5751d6 Redesign failover standby API 
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2021-12-29 20:31:40 +01:00
Robert Baldyga
4cabc60d40 Avoid loading runtime metadata sections during recovery 
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2021-12-29 14:04:19 +01:00
Robert Baldyga
4625763df5 Return error on CRC mismatch during recovery 
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2021-12-29 14:04:19 +01:00
Robert Baldyga
e73cbad2c7
Merge pull request #631 from mmichal10/dont-stop-cleaner 
Don't stop cleaner in activate rollback
 2021-12-27 16:51:32 +01:00
Robert Baldyga
0ac66ce4aa Fix cache stop after standby detach 
Don't attempt to close cache volume if cache is in standby detached state.

Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2021-12-23 22:39:37 +01:00
Michal Mielewczyk
a8bdba0cb2 Don't stop cleaner in activate rollback 
Activate is not responsible for starting cleaner so rollback shouldn't stop it
eiter.

Signed-off-by: Michal Mielewczyk <michal.mielewczyk@intel.com>
 2021-12-23 14:46:28 +01:00
Bob Chen
b6de614ada fix volume_close completion order 
Signed-off-by: Bob Chen <beef9999@qq.com>
 2021-12-22 15:18:34 +08:00
Robert Baldyga
a2916313ee
Revert "fix volume_close completion order" 2021-12-21 20:33:34 +01:00
chenbo
aa6e674034 fix volume_close completion order 2021-12-20 20:10:07 +08:00
Robert Baldyga
0751b2c0c0 Fix metadata flapping 
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2021-12-15 22:21:57 +01:00
Robert Baldyga
cac5869406
Merge pull request #603 from robertbaldyga/metadata-flapping 
Introduce flapping of metadata config sections
 2021-12-15 17:11:15 +01:00
Robert Baldyga
df9a9f2722 Read superblock sections from cache volume during activate 
Because of metadata flapping it is much more complicated to capture those
sections in flight in standby mode, so we read them directly from the cache
volume during the activate.

Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2021-12-15 15:30:34 +01:00
Robert Baldyga
99c8c05f3f Introduce flapping of metadata config sections 
This feature provides double buffering of config sections to prevent
situation when power failure during metadata flush leads to partially
updated metadata. Flapping mechanism makes it always possible to perform
graceful rollback to previous config metadata content in such situation.

Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2021-12-15 15:30:34 +01:00
Neil Sun
7f82ef3048 Fix incorrect page count calculation with large PAGE_SIZE 
e.g., PAGE_SIZE 65536, cache line 8k.

fix https://github.com/Open-CAS/open-cas-linux/issues/1015

Signed-off-by: Sun Feng <loyou85@gmail.com>
 2021-12-14 20:07:59 +08:00
Robert Baldyga
60218759d2
Merge pull request #597 from rafalste/fix_core_zero_size_error 
Fix core-zero-size error
 2021-12-08 22:04:27 +01:00
Robert Baldyga
21c4673251
Merge pull request #600 from mmichal10/cleaning-cmpl 
Call completion if failed to perform cleaning
 2021-12-08 22:00:58 +01:00
Michal Mielewczyk
d6f2998890 Call completion if failed to perform cleaning 
Signed-off-by: Michal Mielewczyk <michal.mielewczyk@intel.com>
 2021-12-08 14:50:50 +01:00
Michal Mielewczyk
911a5cddf0 Deinit all registered volume types 
Signed-off-by: Michal Mielewczyk <michal.mielewczyk@intel.com>
 2021-12-08 14:16:49 +01:00
Michal Mielewczyk
655f732748 Don't access freed memory 
Instead of accessing memory of a freed IO, redo size calculations

Signed-off-by: Michal Mielewczyk <michal.mielewczyk@intel.com>
 2021-12-08 14:16:49 +01:00
Michal Mielewczyk
244712b020 Prevent race condition in fast path 
Request submitted in fast path may be freed before the sequential cutoff stats
are updated. Increment request reference counter to prevent it.

Signed-off-by: Michal Mielewczyk <michal.mielewczyk@intel.com>
 2021-12-08 09:00:04 +01:00
Rafal Stefanowski
b57bad4652 Fix core-zero-size error 
Move error print to where it belongs, preventing this message to
pop up when same error code is reported elsewhere for other reason.

Signed-off-by: Rafal Stefanowski <rafal.stefanowski@intel.com>
 2021-12-06 12:30:29 +01:00
Adam Rutkowski
b1494f4642 Remove option to failover without detach 
Signed-off-by: Adam Rutkowski <adam.j.rutkowski@intel.com>
 2021-11-30 15:18:08 +01:00
Adam Rutkowski
b455a393dd extra assertion in metadata passive update 
Signed-off-by: Adam Rutkowski <adam.j.rutkowski@intel.com>
 2021-11-30 12:04:57 +01:00
Adam Rutkowski
d0b00817f3 fix cacheline reset in passive metadata update 
Signed-off-by: Adam Rutkowski <adam.j.rutkowski@intel.com>
 2021-11-30 19:34:52 +01:00
Krzysztof Majzerowicz-Jaszcz
133ea307c8 Fix for issues #988 and #997 
This patch fixes the issue 988 (and 997) causing a kernel stack
overflow.

Signed-off-by: Krzysztof Majzerowicz-Jaszcz <krzysztof.majzerowicz-jaszcz@intel.com>
 2021-11-24 08:15:07 +01:00
Michal Mielewczyk
4ab22ee2dc Maintain runtime struct during failover standby 
To allow the fastest switching from the passive-standby to active mode, the
runtime metadata must be kept 100% synced with the metadata on the drive and in
the RAM thus recovery is required after each collision section update.

To avoid long-lasting recovering of all the cachelines each time the collision
section is being updated, the passive update procedure recovers only those
which have its MD entries on the updated pages.

Signed-off-by: Michal Mielewczyk <michal.mielewczyk@intel.com>
 2021-11-19 11:58:09 +01:00
Michal Mielewczyk
a6989d1881 Pio concurrency 2021-11-19 11:58:09 +01:00
Michal Mielewczyk
52824adaaf Additional cleaning policy info outside of the SB 
Starting cache in a standby mode requires access to a valid cleaning policy
type. If the policy is stored only in the superblock, it may be overridden by
one of the metadata passive updates.

To prevent losing the information it should be stored in cache's runtime
metadata.

Signed-off-by: Michal Mielewczyk <michal.mielewczyk@intel.com>
 2021-11-19 11:53:48 +01:00
Michal Mielewczyk
0e529479d6 Init cleaner during passive start 
Initializing cleaning policy is very time consuming. To reduce the time required
for activating cache instance the initialization sholud be done during passitve
start

Signed-off-by: Michal Mielewczyk <michal.mielewczyk@intel.com>
 2021-11-19 11:53:48 +01:00
Michal Mielewczyk
390e80794d Refactor cleaning policy initialization 
Extract cleaning policy initialization to a separate function

Signed-off-by: Michal Mielewczyk <michal.mielewczyk@intel.com>
 2021-11-19 11:53:48 +01:00
Michal Mielewczyk
6d4e6af5b6 Recovery on passive start 
Adjust recovery procedure to allow rebuilding metadata from partialy valid
metadata

Signed-off-by: Michal Mielewczyk <michal.mielewczyk@intel.com>
 2021-11-19 11:53:48 +01:00
Michal Mielewczyk
11dacd6a84 Set dirty shutdown status on standby init 
Since part of the recovery is done during `standby init`, the correct shutdown
status has to be set

Signed-off-by: Michal Mielewczyk <michal.mielewczyk@intel.com>
 2021-11-19 11:53:48 +01:00
Michal Mielewczyk
8f58add152 Lru populate unsafe 
The unsafe mode is useful if the metadata of added cores is incomplete.

Such scenario is possible when starting cache to standby mode from partially
vaild metadata.

Signed-off-by: Michal Mielewczyk <michal.mielewczyk@intel.com>
 2021-11-19 11:53:48 +01:00
Michal Mielewczyk
4deaa1e133 Reset all the status bits during recovery 
Make sure all the invalid cachelines have reset status bits. This allows to
recognize invalid cachelines easily during populate.

Signed-off-by: Michal Mielewczyk <michal.mielewczyk@intel.com>
 2021-11-19 11:53:48 +01:00
Michal Mielewczyk
fc7c901c8b Skip collision init on cache start passive 
Recovery during passive start is based on the assuption that metadata collision
section stored on disk might be partially valid. Reseting this data would make
rebuilding metadata impossible.

Signed-off-by: Michal Mielewczyk <michal.mielewczyk@intel.com>
 2021-11-19 11:53:48 +01:00
Michal Mielewczyk
048bbedd71 Fix metadata_clear_valid_if_clean() 
The function should return the cacheline's valid status

Signed-off-by: Michal Mielewczyk <michal.mielewczyk@intel.com>
 2021-11-19 11:53:48 +01:00
Michal Mielewczyk
bb0ff67fe9 Metadata clear_dirty_if_invalid() utility 
Fix cacheline's metadata if it is dirty and invalid

Signed-off-by: Michal Mielewczyk <michal.mielewczyk@intel.com>
 2021-11-19 11:53:48 +01:00
Michal Mielewczyk
800190153b Extend lru list API 
Signed-off-by: Michal Mielewczyk <michal.mielewczyk@intel.com>
 2021-11-19 11:53:48 +01:00
Michal Mielewczyk
5ca1404f06 Fix spelling in the error message 
Signed-off-by: Michal Mielewczyk <michal.mielewczyk@intel.com>
 2021-11-19 11:53:48 +01:00
Michal Mielewczyk
ccd0abfea5 Add cache line recovery utils to OCF internal API 
Signed-off-by: Michal Mielewczyk <michal.mielewczyk@intel.com>
 2021-11-19 11:53:48 +01:00
Michal Mielewczyk
a7bdaa751d Add error messages on superblock mismatch 
Signed-off-by: Michal Mielewczyk <michal.mielewczyk@intel.com>
 2021-11-19 11:53:48 +01:00
Rafal Stefanowski
0b39711b8b Add promote-on-threshold sequential cutoff switch 
Decide whether to promote sequential cutoff stream
to global structures when threshold is reached

Signed-off-by: Rafal Stefanowski <rafal.stefanowski@intel.com>
 2021-11-09 12:54:15 +01:00
Robert Baldyga
55eda53cde
Merge pull request #582 from jfckm/fix-detach-volume 
Deinit cache volume on detach
 2021-11-09 13:16:08 +01:00
Jan Musial
55eae1447d Deinit cache volume on detach 
Signed-off-by: Jan Musial <jan.musial@intel.com>
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2021-11-08 18:25:30 +01:00
Robert Baldyga
5cbbfdd5ca
Merge pull request #587 from Open-CAS/gcc_11_fix 
Fix for OCL issue #968 -  GCC 11 compilation error
 2021-11-08 13:34:52 +01:00
Krzysztof Majzerowicz-Jaszcz
99c54be592 Fix for OCL issue #968 - GCC 11 compilation error 
GCC 11 static check finds an array size mismatch and prevents OCF from
compiling correctly. This fixes OpenCAS Linux issue #968

Signed-off-by: Krzysztof Majzerowicz-Jaszcz <krzysztof.majzerowicz-jaszcz@intel.com>
 2021-11-08 11:39:17 +01:00
Adam Rutkowski
8f080295bb
Merge pull request #585 from rafalste/license_change 
Aplying BSD 3-Clause license to OCF source
 2021-10-29 13:16:00 +02:00
Rafal Stefanowski
f22da1cde7 Fix license 
Change license to BSD-3-Clause

Signed-off-by: Rafal Stefanowski <rafal.stefanowski@intel.com>
 2021-10-28 13:08:50 +02:00
Rafal Stefanowski
3cc0d07197 License change to be approved by contributors 
Signed-off-by: Rafal Stefanowski <rafal.stefanowski@intel.com>
 2021-10-27 12:48:20 +02:00
Adam Rutkowski
12c8b4e333
Merge pull request #574 from Open-CAS/passive_api 
Disable selected management operations in failover standby mode
 2021-10-25 10:11:26 +02:00
Krzysztof Majzerowicz-Jaszcz
71262d5097 Cache standby mode API changes 
Error for an invalid cache operation while in passive mode added

Signed-off-by: Krzysztof Majzerowicz-Jaszcz <krzysztof.majzerowicz-jaszcz@intel.com>

Error name correction

Signed-off-by: Krzysztof Majzerowicz-Jaszcz <krzysztof.majzerowicz-jaszcz@intel.com>

API changes for passive cache mode

Moved the passive cache error return source to the api for flush and
set_param

Signed-off-by: Krzysztof Majzerowicz-Jaszcz <krzysztof.majzerowicz-jaszcz@intel.com>

Further API changes for passive cache mode

Signed-off-by: Krzysztof Majzerowicz-Jaszcz <krzysztof.majzerowicz-jaszcz@intel.com>

 Passive api - review changes

Signed-off-by: Krzysztof Majzerowicz-Jaszcz <krzysztof.majzerowicz-jaszcz@intel.com>
 2021-10-22 15:10:53 +02:00
Adam Rutkowski
f9fb80b887 Fix conditional valid bit reset 
Status bits outside provided mask shall be unchanged.

Signed-off-by: Adam Rutkowski <adam.j.rutkowski@intel.com>
 2021-10-12 22:56:45 +02:00
Adam Rutkowski
e2c6a25ee9 [REVERTME] Disable option to perform activate without detach 
Signed-off-by: Adam Rutkowski <adam.j.rutkowski@intel.com>
 2021-10-08 14:52:32 +02:00
Adam Rutkowski
5ad4d937f6 Failover detach 
Signed-off-by: Adam Rutkowski <adam.j.rutkowski@intel.com>
 2021-10-08 14:52:24 +02:00
Adam Rutkowski
48bc6c2f6b Always use async queue kick in management pipeline 
Management pipelines tend to consist of multiple asynchronous steps.
Allowing synchronous queue kick results in massive call stacks (e.g.
almost 500 functions deep in case of cache stop). Since async kick
is required anyway, it seems reasonable to switch to async kick
in pipeline implementation.

Signed-off-by: Adam Rutkowski <adam.j.rutkowski@intel.com>
 2021-09-17 12:39:09 +02:00
Jan Musial
010f30eeaf Validate activate parameters 
Signed-off-by: Jan Musial <jan.musial@intel.com>
 2021-09-14 08:56:41 +02:00
Jan Musial
b9c84e331c Fix attach with no cache_line_size specified 
Signed-off-by: Jan Musial <jan.musial@intel.com>
 2021-09-13 12:52:33 +02:00
Robert Baldyga
076b5995ed Fix metadata_clear_valid_if_clean() 
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2021-09-10 08:12:11 +02:00
Robert Baldyga
7587bec07c
Merge pull request #567 from robertbaldyga/optimize-out-recovery-sector-loop 
Optimize out looping over cache line sectors in recovery
 2021-09-08 13:57:32 +02:00
Michal Mielewczyk
612f68b3c1 Fix metadata io detection in passive mode 
Signed-off-by: Michal Mielewczyk <michal.mielewczyk@intel.com>
 2021-09-08 13:33:04 +02:00
Robert Baldyga
1a3843ba12 Little coding style fix 
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2021-09-07 22:54:10 +02:00
Robert Baldyga
1892f58aba Optimize out looping over cache line sectors in recovery 
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2021-09-07 22:54:10 +02:00
Robert Baldyga
65d3e7a41a Introduce ocf_metadata_clear_valid_if_clean() 
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2021-09-07 22:54:10 +02:00
Robert Baldyga
d7c1404f82 Simplify metadata bit function declarations 
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2021-09-07 22:54:10 +02:00
Robert Baldyga
12a82d7fb1 Get rid of struct ocf_cache_line_settings 
Remove struct that contains redundant data.

Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2021-09-07 14:53:46 +02:00
Robert Baldyga
7b38ad205c Add cache activation from passive state 
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2021-09-06 20:44:40 +02:00
Robert Baldyga
cc22c57cb7 Set proper cache pointer in front volumes 
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2021-09-06 13:49:21 +02:00
Robert Baldyga
f96451a698 Introduce ocf_cache_is_passive() 
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2021-09-06 13:49:21 +02:00
Robert Baldyga
c662649f31 Increment metadata refcount on cache front volume io 
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2021-09-06 13:49:21 +02:00
Robert Baldyga
d5bd3fbd78 Free zeroed metadata pages on update in raw_dynamic 
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2021-09-06 13:49:21 +02:00
Robert Baldyga
e23342cb0e Update metadata in passive mode 
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2021-09-06 13:49:21 +02:00
Robert Baldyga
9b3a0c968e Introduce ocf_metadata_passive_update() 
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2021-09-06 13:49:21 +02:00
Robert Baldyga
1fd9a448d4 Introduce passive cache state 
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2021-09-06 13:49:21 +02:00
Robert Baldyga
ee42d9aaaf Duplicate cache name in struct ocf_cache 
Cache name is needed for logging in passive mode, when config metadata
is still not accessible.

Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2021-09-03 17:22:22 +02:00
Robert Baldyga
85e8b414c4 Add ocf_metadata_load_unsafe() 
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2021-09-03 17:22:22 +02:00
Robert Baldyga
ad52a7e2e1 Introduce cache front volume 
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2021-09-03 17:22:22 +02:00
Robert Baldyga
fa8e7564f0 Move ocf_io_get_internal() to private header 
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2021-09-03 17:22:22 +02:00
Robert Baldyga
e31e7283d9 Rework volume type management 
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2021-09-03 17:22:22 +02:00
Robert Baldyga
a2bef43975 Add missing lock in ocf_ctx_get_volume_type_id() 
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2021-09-03 17:22:22 +02:00
Robert Baldyga
a00ec916e2 Make post metadata load init a separate step in pipeline 
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2021-09-03 17:22:22 +02:00
Robert Baldyga
c6c6618ad8 Move recovery code from metadata to cache mngt 
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2021-09-03 17:22:22 +02:00
Robert Baldyga
a2db4d14e8 Move core initialization code from metadata to mngt 
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2021-09-03 17:22:22 +02:00
Robert Baldyga
24728330fc Make _ocf_mngt_load_add_cores a separate step in pipeline 
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2021-09-03 17:22:22 +02:00
Robert Baldyga
20228561c9 Move metadata deinit to separate pipeline step 
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2021-09-03 17:22:22 +02:00
Robert Baldyga
1f6b83f87d Decouple cache attached state from metadata refcount state 
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2021-09-03 17:22:22 +02:00
Robert Baldyga
9ab4c51dfa Expose superblock operations as part of internal metadata API 
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2021-09-03 17:22:22 +02:00
Robert Baldyga
ab034ab53d Fix uuid comparison in core pool 
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2021-09-03 17:22:22 +02:00
Robert Baldyga
82abcd11e7 Fix documentation of ocf_metadata_raw_rd_access() 
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2021-09-02 22:38:37 +02:00
Robert Baldyga
387cf1b9a5 Fix debug tracing in metadata 
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2021-09-02 22:38:37 +02:00
Robert Baldyga
c1e9c1fa96 Remove trace API 
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2021-08-09 10:00:01 +02:00
Michal Mielewczyk
b83da68f85 Cleaner context ref counter 
To prevent deinitializing cleaner context (i.e. during switching policy) during
processing requests, access to cleaner should be protected with reference
counter

Signed-off-by: Michal Mielewczyk <michal.mielewczyk@intel.com>
 2021-07-27 15:44:33 +02:00
Michal Mielewczyk
f33a6e5ce0 Make switching cleaning policy asynchronous 
Making the operation asynchronous will allow to use refcnt utility as an
synchronization mechanism between processing cachelines and deinitializing
cleaning policy.

Signed-off-by: Michal Mielewczyk <michal.mielewczyk@intel.com>
 2021-07-27 15:44:18 +02:00
Michal Mielewczyk
26194fc536 Use cleaning ops wrapper functions 
Signed-off-by: Michal Mielewczyk <michal.mielewczyk@intel.com>
 2021-07-27 15:44:18 +02:00
Michal Mielewczyk
00aa56dd28 Wrapper functions for cleaning ops 
The change should unify access to cleaning policy resources and facilitate
synchronization when switching cleaning policies

Signed-off-by: Michal Mielewczyk <michal.mielewczyk@intel.com>
 2021-07-27 15:44:18 +02:00
Michal Mielewczyk
6dc29ee85e Refactor includes 
Signed-off-by: Michal Mielewczyk <michal.mielewczyk@intel.com>
 2021-07-27 15:44:18 +02:00
Michal Mielewczyk
c6fe2fc3f9 Deinit sequential cutoff on core removal 
Signed-off-by: Michal Mielewczyk <michal.mielewczyk@intel.com>
 2021-07-26 16:20:17 +02:00
Kozlowski Mateusz
bd7a89c819 Single map alloc location 
Signed-off-by: Kozlowski Mateusz <mateusz.kozlowski@intel.com>
 2021-07-21 08:27:27 +02:00
Kozlowski Mateusz
af1f3d73c2 Add back fastpath 
Signed-off-by: Kozlowski Mateusz <mateusz.kozlowski@intel.com>
 2021-07-21 08:27:25 +02:00
Kozlowski Mateusz
ec4bea4fc0 Add missing ocf_io_put to error path in ocf_core_volume_submit_io 
Signed-off-by: Kozlowski Mateusz <mateusz.kozlowski@intel.com>
 2021-07-21 08:26:31 +02:00
Robert Baldyga
a2b300d465 Avoid stack overflow when pending read misses list is blocked 
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2021-07-14 13:04:03 +02:00
Robert Baldyga
740bf06c4b
Merge pull request #538 from robertbaldyga/fix-next-inval-getter 
Fix helper function getting next invalid cache line
 2021-07-14 10:17:39 +02:00
Robert Baldyga
be1ac09c17 Fix helper function getting next invalid cache line 
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2021-07-13 18:56:52 +02:00
Kozlowski Mateusz
8c3ed42fa2 Fix remap line count for user partitions 
Signed-off-by: Kozlowski Mateusz <mateusz.kozlowski@intel.com>
 2021-07-12 16:49:14 +02:00
Robert Baldyga
f538bbd3ae Fix argument order in ocf_metadata_set_partition_id() call 
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2021-07-09 21:31:06 +02:00
Robert Baldyga
d79c4b7dc9
Merge pull request #535 from mmkayPL/struct-alignment 
Align structures to cacheline
 2021-07-08 13:26:57 +02:00
Kozlowski Mateusz
f494448f97 Align structures to cacheline 
Signed-off-by: Kozlowski Mateusz <mateusz.kozlowski@intel.com>
 2021-07-08 12:46:39 +02:00
Michal Mielewczyk
a394dd06a8 Unlock cachelines after failed remap 
All remapped cachelines are write locked. If the operation fails cachelines has
to be unlocked during rollback

Signed-off-by: Michal Mielewczyk <michal.mielewczyk@intel.com>
 2021-07-06 15:09:50 +02:00
Adam Rutkowski
96dfd87572 restore conditional reschedule during freelist population 
Signed-off-by: Adam Rutkowski <adam.j.rutkowski@intel.com>
 2021-07-02 11:37:49 +02:00
Robert Baldyga
aa3677da10
Merge pull request #530 from arutk/remove_eviction 
Remove remaining stale references to "eviction" and "evp"
 2021-06-30 09:47:35 +02:00
Robert Baldyga
43a142ccdd
Merge pull request #531 from arutk/fix_remove_dirty 
fix removing dirty core
 2021-06-29 09:36:45 +02:00
Adam Rutkowski
a1ec40ce10 Fix ocf_lru_repart for freelist partition 
ocf_lru_get_list() now returs clean list for freelist partition to
provide common interface regardless of partition type.

Signed-off-by: Adam Rutkowski <adam.j.rutkowski@intel.com>
 2021-06-28 17:39:31 +02:00
Adam Rutkowski
a7581b892c Rename evp_iter to lru_iter in concurrency 
Signed-off-by: Adam Rutkowski <adam.j.rutkowski@intel.com>
 2021-06-26 19:09:10 +02:00
Adam Rutkowski
d029b2a2be Remove unused pending_eviction_clines counter 
Signed-off-by: Adam Rutkowski <adam.j.rutkowski@intel.com>
 2021-06-26 19:09:10 +02:00
Adam Rutkowski
a9ab5fbafd Fix comments in ocf_engine_common.h 
Signed-off-by: Adam Rutkowski <adam.j.rutkowski@intel.com>
 2021-06-26 19:09:09 +02:00
Adam Rutkowski
1a5d20156e Renamve eviction_idx to lru_idx 
Signed-off-by: Adam Rutkowski <adam.j.rutkowski@intel.com>
 2021-06-26 19:09:08 +02:00
Adam Rutkowski
fc06ef92a0 Remove obsolete wrapper for lru_rm_cline 
Signed-off-by: Adam Rutkowski <adam.j.rutkowski@intel.com>
 2021-06-26 19:09:04 +02:00
Robert Baldyga
059b845df8 Unlock request after invalidating cache lines 
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2021-06-25 17:50:38 +02:00