[PATCH v11 0/6] introduce memarea library

[Chengwen Feng <fengchengwen@huawei.com>]

The memarea library is an allocator of variable-size object which based
on a memory region. The main features are as follows:

- The memory region can be initialized from the following memory
  sources:
  1. HEAP: e.g. invoke rte_malloc_socket.
  2. LIBC: e.g. invoke posix_memalign.
  3. Another memarea: it can be from another memarea.

- It provides refcnt feature which could be useful in multi-reader
  scenario.

- It supports MT-safe as long as it's specified at creation time.

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 <fengchengwen@huawei.com>

Chengwen Feng (6):
  memarea: introduce memarea library
  test/memarea: support memarea test
  memarea: support alloc/free/refcnt-update API
  test/memarea: support alloc/free/refcnt-update test
  memarea: support dump API
  test/memarea: support dump test

---
v11:
* rebase 23.03
* remove "app/test: add memarea to malloc-perf-autotest" because the
  two algorithm are not comparable which also address previous 
  comments.
v10:
* support windows platform.
* add rte_memarea.libc perftest to malloc-perf-autotest.
v9:
* address Dmitry's comments.
* drop features of SOURCE_USER and backup memarea mechanism.
* rename rte_memarea_update_refcnt to rte_memarea_refcnt_update
  to keep with rte_mbuf_refcnt_update name style.
* fix memarea perftest compile failed at windows platform.
* fix spell warning.
v8:
* address Mattias's comments (rename ALG_DEFAULT with ALG_NEXTFIT).
* small feature patches are combined.
* enhanced backup memory mechanism.
* add memarea to malloc-perf-autotest.
* other tiny naming optimize.
v7:
* repost patches as there are spread over different series in patchwork.
v6:
* address Mattias's comments.
v5:
* fix 09/10 patch spell warning.
v4:
* repost patches as there are spread over different series in patchwork.
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                | 308 ++++++++++++++++++
 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  |  52 ++++
 doc/guides/rel_notes/release_23_03.rst |   5 +
 lib/eal/common/eal_common_log.c        |   1 +
 lib/eal/include/rte_log.h              |   1 +
 lib/memarea/memarea_private.h          |  36 +++
 lib/memarea/meson.build                |  10 +
 lib/memarea/rte_memarea.c              | 413 +++++++++++++++++++++++++
 lib/memarea/rte_memarea.h              | 219 +++++++++++++
 lib/memarea/version.map                |  16 +
 lib/meson.build                        |   1 +
 16 files changed, 1074 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