[bpf-next,v7,0/1] doc: DEVMAPs and XDP_REDIRECT

Message

Maryam Tahhan Nov. 10, 2022, 10:29 a.m. UTC

From: Maryam Tahhan <[e-mail]>

Add documentation for BPF_MAP_TYPE_DEVMAP and
BPF_MAP_TYPE_DEVMAP_HASH including kernel version
introduced, usage and examples.

Add documentation that describes XDP_REDIRECT.

v6-v7:
- Got rid of unnecessary initializations in examples.

v5->v6:
- Separate Kernel BPF and userspace functions for devmaps.
- Include some packet/tracepoint debug info in the redirect
  documentation.

v4->v5:
- Remove unused 'index' variable in example.

v3->v4:
- Prepend supported map section for XDP_REDIRECT documentation.

v2->v3:
- Fixed indentations in usage section to exclude non note text.
- Replace links to selftest with actual paths.

v1->v2:
- Separate xdp_redirect documentation to its own file.
- Clean up and simplify examples and usage function descriptions.

Maryam Tahhan (1):
  doc: DEVMAPs and XDP_REDIRECT

 Documentation/bpf/index.rst      |   1 +
 Documentation/bpf/map_devmap.rst | 221 +++++++++++++++++++++++++++++++
 Documentation/bpf/redirect.rst   |  82 ++++++++++++
 net/core/filter.c                |   8 +-
 4 files changed, 310 insertions(+), 2 deletions(-)
 create mode 100644 Documentation/bpf/map_devmap.rst
 create mode 100644 Documentation/bpf/redirect.rst