4 -------------------------------------------------------------------------------
5 tool to register/unregister/introspect BPF struct_ops
6 -------------------------------------------------------------------------------
13 **bpftool** [*OPTIONS*] **struct_ops** *COMMAND*
15 *OPTIONS* := { { **-j** | **--json** } [{ **-p** | **--pretty** }] }
18 { **show** | **list** | **dump** | **register** | **unregister** | **help** }
23 | **bpftool** **struct_ops { show | list }** [*STRUCT_OPS_MAP*]
24 | **bpftool** **struct_ops dump** [*STRUCT_OPS_MAP*]
25 | **bpftool** **struct_ops register** *OBJ*
26 | **bpftool** **struct_ops unregister** *STRUCT_OPS_MAP*
27 | **bpftool** **struct_ops help**
29 | *STRUCT_OPS_MAP* := { **id** *STRUCT_OPS_MAP_ID* | **name** *STRUCT_OPS_MAP_NAME* }
30 | *OBJ* := /a/file/of/bpf_struct_ops.o
35 **bpftool struct_ops { show | list }** [*STRUCT_OPS_MAP*]
36 Show brief information about the struct_ops in the system.
37 If *STRUCT_OPS_MAP* is specified, it shows information only
38 for the given struct_ops. Otherwise, it lists all struct_ops
39 currently existing in the system.
41 Output will start with struct_ops map ID, followed by its map
42 name and its struct_ops's kernel type.
44 **bpftool struct_ops dump** [*STRUCT_OPS_MAP*]
45 Dump details information about the struct_ops in the system.
46 If *STRUCT_OPS_MAP* is specified, it dumps information only
47 for the given struct_ops. Otherwise, it dumps all struct_ops
48 currently existing in the system.
50 **bpftool struct_ops register** *OBJ*
51 Register bpf struct_ops from *OBJ*. All struct_ops under
52 the ELF section ".struct_ops" will be registered to
55 **bpftool struct_ops unregister** *STRUCT_OPS_MAP*
56 Unregister the *STRUCT_OPS_MAP* from the kernel subsystem.
58 **bpftool struct_ops help**
59 Print short help message.
63 .. include:: common_options.rst
67 **# bpftool struct_ops show**
71 100: dctcp tcp_congestion_ops
72 105: cubic tcp_congestion_ops
74 **# bpftool struct_ops unregister id 105**
78 Unregistered tcp_congestion_ops cubic id 105
80 **# bpftool struct_ops register bpf_cubic.o**
84 Registered tcp_congestion_ops cubic id 110