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161 Commits

Author SHA1 Message Date
Robert Baldyga
a64fc61413
Merge pull request #666 from arutk/pyocf_vol_cleaniup 
pyocf: volume changes required for failover tests
 2022-03-29 10:02:01 +02:00
Robert Baldyga
cf2d4327a1
Merge pull request #667 from arutk/pyocf_failover_api 
pyocf: failover API in Cache
 2022-03-29 09:32:00 +02:00
Robert Baldyga
af43a240d3 Return more specific error on CRC mismatch 
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2022-03-28 22:42:59 +02:00
Adam Rutkowski
5c39af81ca pyocf: failover api 
Signed-off-by: Adam Rutkowski <adam.j.rutkowski@intel.com>
 2022-03-28 16:24:43 +02:00
Adam Rutkowski
0e8d02235a pyocf: Move core/cache md5() logic to volume 
Signed-off-by: Adam Rutkowski <adam.j.rutkowski@intel.com>
 2022-03-28 10:37:11 +02:00
Adam Rutkowski
16c85c1560 Remove ocf_core_new_io 
This function is equivalent to calling ocf_volume_new_io()
on core front volume

Signed-off-by: Adam Rutkowski <adam.j.rutkowski@intel.com>
 2022-03-28 10:36:19 +02:00
Adam Rutkowski
9e88afad62 pyocf: cache and core exported object volumes 
Signed-off-by: Adam Rutkowski <adam.j.rutkowski@intel.com>
 2022-03-28 10:35:18 +02:00
Adam Rutkowski
d2164e4ffd pyocf: replicated volume 
Signed-off-by: Adam Rutkowski <adam.j.rutkowski@intel.com>
 2022-03-28 10:29:02 +02:00
Adam Rutkowski
dcf3129ff8 Extract Volume::open() class method 
Signed-off-by: Adam Rutkowski <adam.j.rutkowski@intel.com>
 2022-03-28 10:29:02 +02:00
Adam Rutkowski
d60e48ee26 pyocf: ocf_volume_new_io wrapper 
Signed-off-by: Adam Rutkowski <adam.j.rutkowski@intel.com>
 2022-03-28 10:29:02 +02:00
Adam Rutkowski
e0c762387c pyocf: implement get_(front_)volume() in Cache and Core 
This common interface is later going to be used for generic code
implementing cache/core exported object I/O.

Signed-off-by: Adam Rutkowski <adam.j.rutkowski@intel.com>
 2022-03-28 10:29:02 +02:00
Adam Rutkowski
2672f5460a pyocf: unique volume ops for each volume class 
Signed-off-by: Adam Rutkowski <adam.j.rutkowski@intel.com>
 2022-03-28 10:29:02 +02:00
Adam Rutkowski
7cb9523d8c pyocf: volume offlining 
Signed-off-by: Adam Rutkowski <adam.j.rutkowski@intel.com>
 2022-03-28 10:29:02 +02:00
Adam Rutkowski
33b134242b pyocf: remove trace volume 
Signed-off-by: Adam Rutkowski <adam.j.rutkowski@intel.com>
 2022-03-28 10:29:02 +02:00
Adam Rutkowski
838870fa10 pyocf: Use abstract Volume in generic code paths 
Signed-off-by: Adam Rutkowski <adam.j.rutkowski@intel.com>
 2022-03-28 10:29:02 +02:00
Adam Rutkowski
9e13364896 pyocf: Extract generic volume logic from RamVolume 
Signed-off-by: Adam Rutkowski <adam.j.rutkowski@intel.com>
 2022-03-28 10:29:02 +02:00
Adam Rutkowski
16f9d58f28 pyocf: Rename Volume to RamVolume 
Signed-off-by: Adam Rutkowski <adam.j.rutkowski@intel.com>
 2022-03-28 10:29:02 +02:00
Adam Rutkowski
062f63e4ff pyocf: Volume not to inherit from ctypes.Structure 
Volume object is never referenced from C code, so there
is no need to inherit from ctypes.Structure.

Signed-off-by: Adam Rutkowski <adam.j.rutkowski@intel.com>
 2022-03-28 10:29:02 +02:00
Adam Rutkowski
9975706488 pyocf: Move poison out of Volume class 
.. so that abstract Volume does not need to be imported to access
the poison value.

Signed-off-by: Adam Rutkowski <adam.j.rutkowski@intel.com>
 2022-03-28 10:29:02 +02:00
Adam Rutkowski
232133302b pyocf: use generic volume submit in io class 
.. instead of submit_core(). This will enable to reuse Io class
for cache exported object I/O.

Signed-off-by: Adam Rutkowski <adam.j.rutkowski@intel.com>
 2022-03-28 10:29:02 +02:00
Adam Rutkowski
2de7b9d8f2 pyocf: submit_flush() and submit_dicard() 
Signed-off-by: Adam Rutkowski <adam.j.rutkowski@intel.com>
 2022-03-28 10:29:02 +02:00
Adam Rutkowski
efd6389e74 pyocf: add get_default_queue to core object 
Signed-off-by: Adam Rutkowski <adam.j.rutkowski@intel.com>
 2022-03-28 10:29:02 +02:00
Adam Rutkowski
4a839cd332 Verify standby/active cache state in OCF entry points 
Signed-off-by: Adam Rutkowski <adam.j.rutkowski@intel.com>
 2022-03-28 09:42:02 +02:00
Robert Baldyga
aa4622cc01 Make core remove error recoverable 
First try to clean only the mapping. This operation does not require any
rollback, so even if flushing collision fails, core object is still
intact. In case of error we inform user that core was not removed by
returning new error code (-OCF_ERR_CORE_NOT_REMOVED).

After flushing collision succeeds we remove core from metadata and
flush superblock at the end. At that point the core is fully removed
from OCF and even if superblock flush error occurs there is nothing we
can do about it, so we just return the error code.

Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2022-03-25 21:32:55 +01:00
Robert Baldyga
d46845b97a Remove unused error code 
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2022-03-09 11:43:35 +01:00
Robert Baldyga
d5b2c65a39 Remove "metadata_layout" parameter of the cache 
This feature is replaced with LRU list shuffling.

Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2022-03-07 17:48:25 +01:00
Robert Baldyga
765d1c5d77 rio: fix size comparison in 
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2022-02-24 15:02:46 +01:00
Adam Rutkowski
a6d8bd0470 rio: accept queue list in Rio constructor 
Signed-off-by: Adam Rutkowski <adam.j.rutkowski@intel.com>
Signed-off-by: Jan Musial <jan.musial@intel.com>
 2022-02-24 14:56:09 +01:00
Adam Rutkowski
372b1f1e1c remove unnecessary callback decorator in rio 
Signed-off-by: Adam Rutkowski <adam.j.rutkowski@intel.com>
 2022-02-24 14:56:09 +01:00
Adam Rutkowski
9baf9a3876 rio: convert Size to bytes for extent calculation 
Signed-off-by: Adam Rutkowski <adam.j.rutkowski@intel.com>
 2022-02-24 14:56:09 +01:00
Adam Rutkowski
17eddab094 pyocf: queue settle functionality 
Queue settle is a mechanism to wait for all OCF processing
on a given queue to finish.

In some tests simply waiting for I/O to finish is not enough. Most
notably some statistics are potentially incremented after user triggered
I/O is finished. This is due to asynchronous nature of I/O operations
and OCF approach to statistics update, where only eventual consistency
is guaranteed without explicit mechanism available to query whether
the final state is reached yet. However it is fully in the adapter power
to determine this, as OCF executes in context of API calls from the
adapter (like I/O submission, ocf_queue_run, ocf_cleaner_run, management
operations) and I/O completion callbacks. Queue settle is a mechanism to
assure ocf_queue_run is not being executed by the thread associated with
a queue.

With queue settle mechanism it is straightforward for the adapter to
wait for cache statistics to reach fixed values:
1. wait for all I/O to OCF to finish
2. settle all I/O queues
3. make sure background cleaner is not active

Signed-off-by: Adam Rutkowski <adam.j.rutkowski@intel.com>
 2022-02-24 14:56:09 +01:00
Jan Musial
41732090ae Implement rio io tester for pyocf 
rio stands for Rigid IO tester and is a simple mechanism for testing
OCF cache IO.

Signed-off-by: Jan Musial <jan.musial@intel.com>
Signed-off-by: Adam Rutkowski <adam.j.rutkowski@intel.com>
 2022-02-24 14:56:09 +01:00
Jan Musial
96124ca87a Enable Size comparisons in pyocf 
Signed-off-by: Jan Musial <jan.musial@intel.com>
 2022-02-24 14:56:09 +01:00
Jan Musial
973a474b37 Make open_cores load viable by adding getter for cores 
Signed-off-by: Jan Musial <jan.musial@intel.com>
 2022-02-24 12:27:10 +01:00
Jan Musial
bfee654770 Add wrapper for cache_config_set_default 
Signed-off-by: Jan Musial <jan.musial@intel.com>
 2022-02-24 12:27:10 +01:00
Jan Musial
2038c3aa68 Add basic load test with core reattachment and cleanup structures 
Signed-off-by: Jan Musial <jan.musial@intel.com>
 2022-02-24 12:27:10 +01:00
Jan Musial
30fe2eb783 Handle try_add core adding mode 
Signed-off-by: Jan Musial <jan.musial@intel.com>
 2022-02-24 12:27:10 +01:00
Jan Musial
1273e9ddfe Fix leaking Volumes and OcfCtx's 
Signed-off-by: Jan Musial <jan.musial@intel.com>
 2022-02-16 07:06:05 +01:00
Jan Musial
8f47cfa5bf Make multiple pyocf loggers viable 
Signed-off-by: Jan Musial <jan.musial@intel.com>
 2022-02-16 07:06:05 +01:00
Jan Musial
441e3c20d7 Clean-up pyocf c-python shared objects instance tracking 
Signed-off-by: Jan Musial <jan.musial@intel.com>
 2022-02-16 07:06:05 +01:00
Jan Musial
4c9d4fe24e Fix pyocf Ctx ownership 
Signed-off-by: Jan Musial <jan.musial@intel.com>
 2022-02-16 07:06:05 +01:00
Robert Baldyga
da59a1c9aa
Merge pull request #634 from arutk/mopft_21.12 
pyocf: management operation power failure tests
 2022-02-14 14:10:52 +01:00
Robert Baldyga
49abe816ce
Merge pull request #649 from pdebski21/1023 
fix for issue #1023
 2022-02-07 16:17:14 +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
Adam Rutkowski
ce0bbc260e pycof: explicitly free Volume::_uuid_ dictionary 
Signed-off-by: Adam Rutkowski <adam.j.rutkowski@intel.com>
 2022-01-13 17:35:33 +01:00
Adam Rutkowski
7f60aa0dd6 pyocf: fix error handling in Cache::stop() 
Write error in cache stop means the instance was in fact stopped.

Signed-off-by: Adam Rutkowski <adam.j.rutkowski@intel.com>
 2022-01-13 17:35:33 +01:00
Adam Rutkowski
ed5185e870 pyocf: make io class config more usable 
Unify field param names and include io class id in info struct.

Signed-off-by: Adam Rutkowski <adam.j.rutkowski@intel.com>
 2022-01-13 17:35:33 +01:00
Adam Rutkowski
5fe217d96f pyocf: set proper OCF error codes in Volume 
Signed-off-by: Adam Rutkowski <adam.j.rutkowski@intel.com>
 2022-01-13 17:35:33 +01:00
Adam Rutkowski
c43059a4cf pyocf: add get_bytes() function to Volume and Data 
Signed-off-by: Adam Rutkowski <adam.j.rutkowski@intel.com>
 2022-01-13 17:35:33 +01:00
Adam Rutkowski
683174c78f pyocf: add option to load cache without openning cores 
... this is useful to workaround current pyocf limitations and
load cache with manual core insertion

Signed-off-by: Adam Rutkowski <adam.j.rutkowski@intel.com>
 2022-01-13 17:35:33 +01:00