[nrf fromlist] ZMS a new memory storage system #2045
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ZMS is the abreviation of Zephyr Memory Storage. It is a storage developed to target especially the non erasable devices. The new memory storage system inherit from the NVS storage multiple features and introduce new ones : * Inherited features : - light key-value based storage - cache for entries - Wear Leveling of flash memory - Resilience to power failures * New features : - cycle counter for non erasable devices (instead of erase emulation) - Keys up to 32-bit - Built-in support of CRC32 for data - Small size data (<= 8 bytes) integrated within entries Upstream PR: zephyrproject-rtos/zephyr#77930 Signed-off-by: Riadh Ghaddab <[email protected]> (cherry picked from commit 7d9d3fddea0a3ff999934c7aad99e54b2a8a864c)
List of added tests : - zms.test_delete - zms.test_zms_cache_collission - zms.test_zms_cache_gc - zms.test_zms_cache_hash_quality - zms.test_zms_cache_init - zms.test_zms_corrupted_sector_close_operation - zms.test_zms_corrupted_write - zms.test_zms_full_sector - zms.test_zms_gc - zms.test_zms_gc_3sectors - zms.test_zms_gc_corrupt_ate - zms.test_zms_gc_corrupt_close_ate - zms.test_zms_mount - zms.test_zms_write Upstream PR: zephyrproject-rtos/zephyr#77930 Signed-off-by: Riadh Ghaddab <[email protected]> (cherry picked from commit 3f31a7db7fe70ee92a0fe63c07fb7704abbb52b3)
This adds a user application that shows the usage of ZMS The sample app shows three main functions of ZMS: - read/write/delete key/value pairs - fill all storage and delete it - calculate free remaining space Upstream PR: zephyrproject-rtos/zephyr#77930 Signed-off-by: Riadh Ghaddab <[email protected]> (cherry picked from commit 9106be03f65f25e5d32920bf1443f05e43a54731)
This adds the documentation for the Zephyr Memory Storage system. Upstream PR: zephyrproject-rtos/zephyr#77930 Signed-off-by: Riadh Ghaddab <[email protected]> (cherry picked from commit 7cc32ad6b45548b7173cbfa7b98d7bdff986f671)
…orage) This adds the initial backend support for the ZMS storage system. Upstream PR: zephyrproject-rtos/zephyr#78632 Signed-off-by: Riadh Ghaddab <[email protected]> (cherry picked from commit b99b214b949d3ae10bf02eb60f4ade4fb42400a1)
Introduce ZMS_LOOKUP_CACHE_FOR_SETTINGS Kconfig option that enables a dedicated hash function for the ZMS lookup cache that takes advantage of the ZMS ID allocation scheme used by the ZMS settings backend. As such, this option should only be used if an application uses ZMS via the settings layer. Signed-off-by: Riadh Ghaddab <[email protected]>
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This adds a new storage system ZMS and its backend for settings.
It adds as well all the dependencies for this storage fromtree zephyrproject-rtos:main