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84 lines
2.4 KiB
84 lines
2.4 KiB
================== |
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bpftool-struct_ops |
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================== |
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------------------------------------------------------------------------------- |
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tool to register/unregister/introspect BPF struct_ops |
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------------------------------------------------------------------------------- |
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:Manual section: 8 |
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SYNOPSIS |
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======== |
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**bpftool** [*OPTIONS*] **struct_ops** *COMMAND* |
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*OPTIONS* := { { **-j** | **--json** } [{ **-p** | **--pretty** }] | { **-d** | **--debug** } } |
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*COMMANDS* := |
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{ **show** | **list** | **dump** | **register** | **unregister** | **help** } |
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STRUCT_OPS COMMANDS |
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=================== |
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| **bpftool** **struct_ops { show | list }** [*STRUCT_OPS_MAP*] |
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| **bpftool** **struct_ops dump** [*STRUCT_OPS_MAP*] |
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| **bpftool** **struct_ops register** *OBJ* |
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| **bpftool** **struct_ops unregister** *STRUCT_OPS_MAP* |
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| **bpftool** **struct_ops help** |
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| *STRUCT_OPS_MAP* := { **id** *STRUCT_OPS_MAP_ID* | **name** *STRUCT_OPS_MAP_NAME* } |
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| *OBJ* := /a/file/of/bpf_struct_ops.o |
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DESCRIPTION |
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=========== |
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**bpftool struct_ops { show | list }** [*STRUCT_OPS_MAP*] |
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Show brief information about the struct_ops in the system. |
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If *STRUCT_OPS_MAP* is specified, it shows information only |
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for the given struct_ops. Otherwise, it lists all struct_ops |
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currently existing in the system. |
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Output will start with struct_ops map ID, followed by its map |
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name and its struct_ops's kernel type. |
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**bpftool struct_ops dump** [*STRUCT_OPS_MAP*] |
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Dump details information about the struct_ops in the system. |
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If *STRUCT_OPS_MAP* is specified, it dumps information only |
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for the given struct_ops. Otherwise, it dumps all struct_ops |
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currently existing in the system. |
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**bpftool struct_ops register** *OBJ* |
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Register bpf struct_ops from *OBJ*. All struct_ops under |
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the ELF section ".struct_ops" will be registered to |
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its kernel subsystem. |
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**bpftool struct_ops unregister** *STRUCT_OPS_MAP* |
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Unregister the *STRUCT_OPS_MAP* from the kernel subsystem. |
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**bpftool struct_ops help** |
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Print short help message. |
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OPTIONS |
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======= |
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.. include:: common_options.rst |
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EXAMPLES |
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======== |
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**# bpftool struct_ops show** |
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:: |
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100: dctcp tcp_congestion_ops |
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105: cubic tcp_congestion_ops |
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**# bpftool struct_ops unregister id 105** |
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:: |
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Unregistered tcp_congestion_ops cubic id 105 |
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**# bpftool struct_ops register bpf_cubic.o** |
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:: |
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Registered tcp_congestion_ops cubic id 110
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