[dpdk-dev] [PATCH v9 0/9] Dynamic memzones

[Sergio Gonzalez Monroy]

Current implemetation allows reserving/creating memzones but not the opposite
(unreserve/free). This affects mempools and other memzone based objects.

>From my point of view, implementing free functionality for memzones would look
like malloc over memsegs.
Thus, this approach moves malloc inside eal (which in turn removes a circular
dependency), where malloc heaps are composed of memsegs.
We keep both malloc and memzone APIs as they are, but memzones allocate its
memory by calling malloc_heap_alloc.
Some extra functionality is required in malloc to allow for boundary constrained
memory requests.
In summary, currently malloc is based on memzones, and with this approach
memzones are based on malloc.

v9:
 - Fix incorrect size_t type that results in 32bits compilation error.

v8:
 - Rebase against current HEAD to factor for changes made by new Tile-Gx arch

v7:
 - Create a separated maintainer section for memory allocation

v6:
 - Fix bad patch for rte_memzone_free

v5:
 - Fix rte_memzone_free
 - Improve rte_memzone_free unit test

v4:
 - Rebase and fix couple of merge issues

v3:
 - Create dummy librte_malloc
 - Add deprecation notice
 - Rework some of the code
 - Doc update
 - checkpatch

v2:
 - New rte_memzone_free
 - Support memzone len = 0
 - Add all available memsegs to malloc heap at init
 - Update memzone/malloc unit tests


v6 Acked-by: Konstantin Ananyev <konstantin.ananyev at intel.com>


Sergio Gonzalez Monroy (9):
  eal: move librte_malloc to eal/common
  eal: memzone allocated by malloc
  app/test: update malloc/memzone unit tests
  config: remove CONFIG_RTE_MALLOC_MEMZONE_SIZE
  eal: remove free_memseg and references to it
  eal: new rte_memzone_free
  app/test: rte_memzone_free unit test
  doc: announce ABI change of librte_malloc
  doc: update malloc documentation

 MAINTAINERS                                       |  22 +-
 app/test/test_malloc.c                            |  86 ----
 app/test/test_memzone.c                           | 456 ++++------------------
 config/common_bsdapp                              |   8 +-
 config/common_linuxapp                            |   8 +-
 doc/guides/prog_guide/env_abstraction_layer.rst   | 220 ++++++++++-
 doc/guides/prog_guide/img/malloc_heap.png         | Bin 81329 -> 80952 bytes
 doc/guides/prog_guide/index.rst                   |   1 -
 doc/guides/prog_guide/malloc_lib.rst              | 233 -----------
 doc/guides/prog_guide/overview.rst                |  11 +-
 doc/guides/rel_notes/abi.rst                      |   6 +-
 drivers/net/af_packet/Makefile                    |   1 -
 drivers/net/bonding/Makefile                      |   1 -
 drivers/net/e1000/Makefile                        |   2 +-
 drivers/net/enic/Makefile                         |   2 +-
 drivers/net/fm10k/Makefile                        |   2 +-
 drivers/net/i40e/Makefile                         |   2 +-
 drivers/net/ixgbe/Makefile                        |   2 +-
 drivers/net/mlx4/Makefile                         |   1 -
 drivers/net/null/Makefile                         |   1 -
 drivers/net/pcap/Makefile                         |   1 -
 drivers/net/virtio/Makefile                       |   2 +-
 drivers/net/vmxnet3/Makefile                      |   2 +-
 drivers/net/xenvirt/Makefile                      |   2 +-
 lib/Makefile                                      |   2 +-
 lib/librte_acl/Makefile                           |   2 +-
 lib/librte_eal/bsdapp/eal/Makefile                |   4 +-
 lib/librte_eal/bsdapp/eal/rte_eal_version.map     |  19 +
 lib/librte_eal/common/Makefile                    |   1 +
 lib/librte_eal/common/eal_common_memzone.c        | 353 +++++++----------
 lib/librte_eal/common/include/rte_eal_memconfig.h |   5 +-
 lib/librte_eal/common/include/rte_malloc.h        | 342 ++++++++++++++++
 lib/librte_eal/common/include/rte_malloc_heap.h   |   3 +-
 lib/librte_eal/common/include/rte_memzone.h       |  11 +
 lib/librte_eal/common/malloc_elem.c               | 344 ++++++++++++++++
 lib/librte_eal/common/malloc_elem.h               | 192 +++++++++
 lib/librte_eal/common/malloc_heap.c               | 227 +++++++++++
 lib/librte_eal/common/malloc_heap.h               |  70 ++++
 lib/librte_eal/common/rte_malloc.c                | 259 ++++++++++++
 lib/librte_eal/linuxapp/eal/Makefile              |   4 +-
 lib/librte_eal/linuxapp/eal/eal_ivshmem.c         |  17 +-
 lib/librte_eal/linuxapp/eal/rte_eal_version.map   |  19 +
 lib/librte_hash/Makefile                          |   2 +-
 lib/librte_lpm/Makefile                           |   2 +-
 lib/librte_malloc/Makefile                        |   6 +-
 lib/librte_malloc/malloc_elem.c                   | 320 ---------------
 lib/librte_malloc/malloc_elem.h                   | 190 ---------
 lib/librte_malloc/malloc_heap.c                   | 208 ----------
 lib/librte_malloc/malloc_heap.h                   |  70 ----
 lib/librte_malloc/rte_malloc.c                    | 228 +----------
 lib/librte_malloc/rte_malloc.h                    | 342 ----------------
 lib/librte_malloc/rte_malloc_version.map          |  16 -
 lib/librte_mempool/Makefile                       |   2 -
 lib/librte_port/Makefile                          |   1 -
 lib/librte_ring/Makefile                          |   3 +-
 lib/librte_table/Makefile                         |   1 -
 56 files changed, 1965 insertions(+), 2372 deletions(-)
 delete mode 100644 doc/guides/prog_guide/malloc_lib.rst
 create mode 100644 lib/librte_eal/common/include/rte_malloc.h
 create mode 100644 lib/librte_eal/common/malloc_elem.c
 create mode 100644 lib/librte_eal/common/malloc_elem.h
 create mode 100644 lib/librte_eal/common/malloc_heap.c
 create mode 100644 lib/librte_eal/common/malloc_heap.h
 create mode 100644 lib/librte_eal/common/rte_malloc.c
 delete mode 100644 lib/librte_malloc/malloc_elem.c
 delete mode 100644 lib/librte_malloc/malloc_elem.h
 delete mode 100644 lib/librte_malloc/malloc_heap.c
 delete mode 100644 lib/librte_malloc/malloc_heap.h
 delete mode 100644 lib/librte_malloc/rte_malloc.h

-- 
1.9.3