Decide whether to promote sequential cutoff stream
to global structures when threshold is reached
Signed-off-by: Rafal Stefanowski <rafal.stefanowski@intel.com>
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>
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>
New structure ocf_part is added to contain all the data common for both
user partitions and freelist partition: part_runtime and part_id.
ocf_user_part now contains ocf_part structure as well as pointer to
cleaning partition runtime metadata (moved out from part_runtime) and
user partition config (no change here).
Signed-off-by: Adam Rutkowski <adam.j.rutkowski@intel.com>
This allows access to it in ctx_metadata_updater_init, which is
done in the same call stack during initalization.
Signed-off-by: Kozlowski Mateusz <mateusz.kozlowski@intel.com>
Reformat function that calculates how long cache/core is dirty
Update `dirty_for` types in functional tests
Values stored in info structs fields (both in cache and core structs)
are unsigned 64-bits ints but `dirty_for`s were unsigned 32-bits ints.
Use existing function to transform returned value to seconds.
Replace seconds stored in metadata with seconds.
Replacement was done if old value of replaced field was equal to zero.
Acquiring monotonic high precission timestamp is potentially
slow and it makes sense to compare the field's value
to zero before calling atomic function.
Signed-off-by: Slawomir Jankowski <slawomir.jankowski@intel.com>
512K is the maximum request size for which request map
fits into one page (4K) regardless of cacheline size.
Signed-off-by: Adam Rutkowski <adam.j.rutkowski@intel.com>
Change 'OCF_ERR_START_CACHE_FAIL' to 'OCF_ERR_NO_MEM' while CAS fails in case of memory lack on device.
Add new error code for case, when device doesn't satisfy CAS requirements - 'OCF_ERR_INVAL_CACHE_DEV'.
Use 'OCF_ERR_INVAL_CACHE_DEV' in code.
Update error code match in test.
closes#317 issue
Signed-off-by: Ostrokrzew <slawomir.jankowski@intel.com>
pointer type to array which is 32 characters long;
**core.py**: Add missing import and modify class' field type
to keep consistency;
**ocf_mngt_core**: Remove local variable 'name';
remove env_vmalloc for 'name' - isn't no longer needed;
remove initialization 'name' - as above;
remove env_vfree for context->cfg.name - variable isn't no allocated
in memory;
check if cfg->name exists;
change label in goto from deleted err_name to the closest err_pipeline.
Signed-off-by: Slawomir_Jankowski <slawomir.jankowski@intel.com>
It allows to modify and retrieve particular PP params event if it isn't active
and store values between cache stop and load.
Signed-off-by: Michal Mielewczyk <michal.mielewczyk@intel.com>
Since ocf requires loading cache with the same name as it was stopped, it should
also allow to read name from metadata.
Signed-off-by: Michal Mielewczyk <michal.mielewczyk@intel.com>
When loading cache metadata, it should be started with exactly the same name as
it was running previously. Otherwise load should fail and return newly added
error code.
Signed-off-by: Michal Mielewczyk <michal.mielewczyk@intel.com>
Inactive core stats should be caluculated and returned to adapter in unified
from, just like all stats are.
Signed-off-by: Michal Mielewczyk <michal.mielewczyk@intel.com>
Since stats builder is implemented for retrieving cache, core and ioclass stats,
adapters should use it instead.
Signed-off-by: Michal Mielewczyk <michal.mielewczyk@intel.com>
Adapter can provide ops for data type deinitialization, if any additional
operations are required on deinitialization procedure.
Signed-off-by: Michal Mielewczyk <michal.mielewczyk@intel.com>
Promotion policy is supposed to perform ALRU noise filtering by
eliminating one-hit wonders being added to cache and polluting it.
Signed-off-by: Jan Musial <jan.musial@intel.com>
Write-only cache mode is similar to writeback, however read
operations do not promote data to cache. Reads are mostly serviced
by the core device, only dirty sectors are fetched from the cache.
Signed-off-by: Adam Rutkowski <adam.j.rutkowski@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>
