1.. SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
 2
 3==================
 4bpftool-struct_ops
 5==================
 6-------------------------------------------------------------------------------
 7tool to register/unregister/introspect BPF struct_ops
 8-------------------------------------------------------------------------------
 9
10:Manual section: 8
11
12.. include:: substitutions.rst
13
14SYNOPSIS
15========
16
17	**bpftool** [*OPTIONS*] **struct_ops** *COMMAND*
18
19	*OPTIONS* := { |COMMON_OPTIONS| }
20
21	*COMMANDS* :=
22	{ **show** | **list** | **dump** | **register** | **unregister** | **help** }
23
24STRUCT_OPS COMMANDS
25===================
26
27|	**bpftool** **struct_ops { show | list }** [*STRUCT_OPS_MAP*]
28|	**bpftool** **struct_ops dump** [*STRUCT_OPS_MAP*]
29|	**bpftool** **struct_ops register** *OBJ*
30|	**bpftool** **struct_ops unregister** *STRUCT_OPS_MAP*
31|	**bpftool** **struct_ops help**
32|
33|	*STRUCT_OPS_MAP* := { **id** *STRUCT_OPS_MAP_ID* | **name** *STRUCT_OPS_MAP_NAME* }
34|	*OBJ* := /a/file/of/bpf_struct_ops.o
35
36
37DESCRIPTION
38===========
39	**bpftool struct_ops { show | list }** [*STRUCT_OPS_MAP*]
40		  Show brief information about the struct_ops in the system.
41		  If *STRUCT_OPS_MAP* is specified, it shows information only
42		  for the given struct_ops.  Otherwise, it lists all struct_ops
43		  currently existing in the system.
44
45		  Output will start with struct_ops map ID, followed by its map
46		  name and its struct_ops's kernel type.
47
48	**bpftool struct_ops dump** [*STRUCT_OPS_MAP*]
49		  Dump details information about the struct_ops in the system.
50		  If *STRUCT_OPS_MAP* is specified, it dumps information only
51		  for the given struct_ops.  Otherwise, it dumps all struct_ops
52		  currently existing in the system.
53
54	**bpftool struct_ops register** *OBJ*
55		  Register bpf struct_ops from *OBJ*.  All struct_ops under
56		  the ELF section ".struct_ops" will be registered to
57		  its kernel subsystem.
58
59	**bpftool struct_ops unregister**  *STRUCT_OPS_MAP*
60		  Unregister the *STRUCT_OPS_MAP* from the kernel subsystem.
61
62	**bpftool struct_ops help**
63		  Print short help message.
64
65OPTIONS
66=======
67	.. include:: common_options.rst
68
69EXAMPLES
70========
71**# bpftool struct_ops show**
72
73::
74
75    100: dctcp           tcp_congestion_ops
76    105: cubic           tcp_congestion_ops
77
78**# bpftool struct_ops unregister id 105**
79
80::
81
82   Unregistered tcp_congestion_ops cubic id 105
83
84**# bpftool struct_ops register bpf_cubic.o**
85
86::
87
88   Registered tcp_congestion_ops cubic id 110