[PATCH 0/2] node: add mbuf dynamic field for nodes

[Nitin Saxena <nsaxena@marvell.com>]

Currently each rte_node registers separate mbuf dynamic fields for their
own purpose. This leads to wastage of mbuf space as once mbuf get passed
a particular node, the registered dynamic field(by that node) is no
longer used.

This patch series adds a global/common mbuf dynamic field which is
reusable by all the nodes(including out-of-tree nodes). This helps to
repurpose same mbuf dynamic field for other nodes. It contains two types
of fields: (a) persistent (b) overloadable.

While persistent fields are those which does not often changes during a
graph walk such as rx/tx interface, buffer flags etc. Currently there
are no persistent fields added but they can be added later

Overloadable fields are those which can be overloaded by two adjacent
nodes. Overloadable fields can be repurposed by other two adjacent nodes.

This patch series also updates ip4/ip6 lookup/rewrite nodes to use
overlaodable mbuf dynamic fields.

Nitin Saxena (2):
  node: add global node mbuf dynfield
  node: use node mbuf dynfield in ip4 nodes

 doc/api/doxy-api-index.md              |   3 +-
 doc/guides/rel_notes/release_25_07.rst |   6 ++
 lib/node/ip4_lookup.c                  |  14 +--
 lib/node/ip4_rewrite.c                 |  15 ++-
 lib/node/ip6_lookup.c                  |  15 ++-
 lib/node/ip6_rewrite.c                 |  14 +--
 lib/node/meson.build                   |   2 +
 lib/node/node_mbuf_dynfield.c          |  56 ++++++++++
 lib/node/node_private.h                |  40 +------
 lib/node/rte_node_mbuf_dynfield.h      | 139 +++++++++++++++++++++++++
 lib/node/version.map                   |   3 +
 11 files changed, 233 insertions(+), 74 deletions(-)
 create mode 100644 lib/node/node_mbuf_dynfield.c
 create mode 100644 lib/node/rte_node_mbuf_dynfield.h

--
2.43.0