Flush/load metadata paths are heavily dependend on Data behaving
correctly in terms of seeks/position and that needed to be fixed.
Signed-off-by: Jan Musial <jan.musial@intel.com>
ocf_kick_cleaner() allows to perfom cleaning immediately.
Nop cleaning policy now returns new 'OCF_CLEANER_DISABLE' macro which indicates
that cleaing shouldn't be performed. To enable it back, ocf_kick_cleaner()
should be called.
Signed-off-by: Michal Mielewczyk <michal.mielewczyk@intel.com>
As non-interruptible flushes are no longer triggered from OCF
internals, we can get rid of "interruption" argument and let
adapters handle it themselves.
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
Queue is stopped when reference counter drops to 0, so no need to
manually stop management queue after cache stop - simple put is
enough.
Signed-off-by: Adam Rutkowski <adam.j.rutkowski@intel.com>
Tests for starting cache and checking if mode works properly
Tests for stopping cache
Negative and stress tests
Signed-off-by: Daniel Madej <daniel.madej@intel.com>
* Add references to Cores in Cache, ctx holds caches, caches hold cores,
everything gets cleaned up nicely
* GC in Python seems to be a bit lazy, if we want to run CI on
low-memory machines we need to make sure it does run in between tests
'cause we don't want no huge Volumes hanging around for long
Signed-off-by: Jan Musial <jan.musial@intel.com>
Implement simple secure erase tests. Perform IO that will trigger
copying of Data buffers and make sure OCF calls secure erase on them.
Signed-off-by: Jan Musial <jan.musial@intel.com>
Due the aggresive security checks in compiler 'printf' might be substituded with
'__printf_chk'. However it does not differentiate whether substituted string is
library function call whether field in structure.
By renaming field we prevent it to be unintentionally subustituted by the
preprocessor.
Signed-off-by: Michal Mielewczyk <michal.mielewczyk@intel.com>
Fix some instance tracking to prevent Python-side objects from leaking
buffers.
Also, reduce min size of Cache instance (real minimum should be around ~~19MiB,
but we need to make it more deterministic and 20 MiB seems to be reasonable).
Still some stuff left to do, but it needs more investigation and, for
now, this should suffice just to enable some form of CI.
Signed-off-by: Jan Musial <jan.musial@intel.com>
PyOCF is a tool written with testing OCF functionality in mind.
It is a Python3 (3.6 version required) package which wraps OCF
by providing Python objects in place of OCF objects (volumes, queues,
etc). Thin layer of translation between OCF objects and PyOCF objects
enables using customized behaviors for OCF primitives by subclassing
PyOCF classes.
This initial version implements only WT and WI modes and single,
synchronously operating Queue.
TO DO:
- Queues/Cleaner/MetadataUpdater implemented as Python threads
- Loading of caches from PyOCF Volumes (fix bugs in OCF)
- Make sure it works multi-threaded for more sophisticated tests
Co-authored-by: Jan Musial <jan.musial@intel.com>
Signed-off-by: Michal Rakowski <michal.rakowski@intel.com>
Signed-off-by: Jan Musial <jan.musial@intel.com>
