tools, bpftool: Add ringbuf map type to map command docs

Commit c34a06c56df7 ("tools/bpftool: Add ringbuf map to a list of known
map types") added the symbolic "ringbuf" name. Document it in the bpftool
map command docs and usage as well.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/bpf/20200616113303.8123-1-tklauser@distanz.ch

diff --git a/tools/bpf/bpftool/Documentation/bpftool-map.rst b/tools/bpf/bpftool/Documentation/bpftool-map.rst
index 3110164..70c78fa 100644 (file)
--- a/tools/bpf/bpftool/Documentation/bpftool-map.rst
+++ b/tools/bpf/bpftool/Documentation/bpftool-map.rst
@@ -49,7 +49,7 @@ MAP COMMANDS
 |              | **lru_percpu_hash** | **lpm_trie** | **array_of_maps** | **hash_of_maps**
 |              | **devmap** | **devmap_hash** | **sockmap** | **cpumap** | **xskmap** | **sockhash**
 |              | **cgroup_storage** | **reuseport_sockarray** | **percpu_cgroup_storage**
-|              | **queue** | **stack** | **sk_storage** | **struct_ops** }
+|              | **queue** | **stack** | **sk_storage** | **struct_ops** | **ringbuf** }
 
 DESCRIPTION
 ===========

diff --git a/tools/bpf/bpftool/map.c b/tools/bpf/bpftool/map.c
index 99109a6..1d3b606 100644 (file)
--- a/tools/bpf/bpftool/map.c
+++ b/tools/bpf/bpftool/map.c
@@ -1591,7 +1591,7 @@ static int do_help(int argc, char **argv)
                "                 lru_percpu_hash | lpm_trie | array_of_maps | hash_of_maps |\n"
                "                 devmap | devmap_hash | sockmap | cpumap | xskmap | sockhash |\n"
                "                 cgroup_storage | reuseport_sockarray | percpu_cgroup_storage |\n"
-               "                 queue | stack | sk_storage | struct_ops }\n"
+               "                 queue | stack | sk_storage | struct_ops | ringbuf }\n"
                "       " HELP_SPEC_OPTIONS "\n"
                "",
                bin_name, argv[-2]);