netdev - [PATCH bpf-next v3 0/2] tools: bpftool: support creating outer maps

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Date:   Thu, 10 Sep 2020 11:26:49 +0100
From:   Quentin Monnet <quentin@...valent.com>
To:     Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>
Cc:     bpf@...r.kernel.org, netdev@...r.kernel.org,
        Andrii Nakryiko <andrii.nakryiko@...il.com>,
        Quentin Monnet <quentin@...valent.com>
Subject: [PATCH bpf-next v3 0/2] tools: bpftool: support creating outer maps

This series makes bpftool able to create outer maps (maps of types
array-of-maps and hash-of-maps). This is done by passing the relevant
inner_map_fd, which we do through a new command-line keyword.

The first two patches also clean up the function related to dumping map
elements.

v3:
- Add a check on errno being ENOENT before skipping outer map entry in
  dumps.

v2:
- v1 was wrongly expected to allow bpftool to dump the content of outer
  maps (already supported). v2 skipped that patch, and instead replaced it
  with a clean-up for the dump_map_elem() function.

Quentin Monnet (3):
  tools: bpftool: clean up function to dump map entry
  tools: bpftool: keep errors for map-of-map dumps if distinct from
    ENOENT
  tools: bpftool: add "inner_map" to "bpftool map create" outer maps

 .../bpf/bpftool/Documentation/bpftool-map.rst |  10 +-
 tools/bpf/bpftool/bash-completion/bpftool     |  22 ++-
 tools/bpf/bpftool/map.c                       | 149 ++++++++++--------
 3 files changed, 114 insertions(+), 67 deletions(-)

-- 
2.25.1