The memarea library is an allocator of variable-size object which based on a memory region. The main features are as follows:
- The default alignment size is RTE_CACHE_LINE_SIZE. - The memory region can be initialized from the following memory sources: 1. RTE memory: e.g. invoke rte_malloc_socket to obtain. 2. System API: e.g. invoke posix_memalign to obtain. 3. User provided address: it can be from extended memory as long as it is available. The address must be aligned to RTE_CACHE_LINE_SIZE. 4. User provided memarea: it can be from another memarea. - It provides refcnt feature which could be useful in multi-reader scenario. - It provides backup memory mechanism, the memarea could use another memarea as a backup. Note: a) The memarea is oriented towards the application layer, which could provides 'region-based memory management' [1] function. b) The eal library also provide memory zone/heap management, but these are tied to huge pages management. [1] https://en.wikipedia.org/wiki/Region-based_memory_management Signed-off-by: Chengwen Feng <fengcheng...@huawei.com> Chengwen Feng (10): memarea: introduce memarea library test/memarea: support memarea test memarea: support alloc/free/update-refcnt API test/memarea: support alloc/free/update-refcnt test memarea: support dump API test/memarea: support dump test memarea: support backup memory mechanism test/memarea: support backup memory test memarea: detect memory corruption based on magic test/memarea: support no MT-safe test --- v3: * add memory source of RTE memory. * add algorithm field to facilitate the introduction of new algorithms. * fix memarea log don't output problem. v2: * fix compile issues reported by dpdk-test-report. * address Dimitry and Jerin's comments. * add no MT-safe test. MAINTAINERS | 6 + app/test/meson.build | 2 + app/test/test_memarea.c | 401 +++++++++++++++++++++++ doc/api/doxy-api-index.md | 3 +- doc/api/doxy-api.conf.in | 1 + doc/guides/prog_guide/index.rst | 1 + doc/guides/prog_guide/memarea_lib.rst | 55 ++++ doc/guides/rel_notes/release_22_11.rst | 6 + lib/eal/common/eal_common_log.c | 1 + lib/eal/include/rte_log.h | 1 + lib/memarea/memarea_private.h | 37 +++ lib/memarea/meson.build | 16 + lib/memarea/rte_memarea.c | 430 +++++++++++++++++++++++++ lib/memarea/rte_memarea.h | 229 +++++++++++++ lib/memarea/version.map | 16 + lib/meson.build | 1 + 16 files changed, 1205 insertions(+), 1 deletion(-) create mode 100644 app/test/test_memarea.c create mode 100644 doc/guides/prog_guide/memarea_lib.rst create mode 100644 lib/memarea/memarea_private.h create mode 100644 lib/memarea/meson.build create mode 100644 lib/memarea/rte_memarea.c create mode 100644 lib/memarea/rte_memarea.h create mode 100644 lib/memarea/version.map -- 2.17.1