Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
bpftool: Add document for net attach/detach on tcx subcommand
This commit adds sample output for net attach/detach on
tcx subcommand.
Signed-off-by: Tao Chen <chen.dylane@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Quentin Monnet <qmo@kernel.org>
Link: https://lore.kernel.org/bpf/20240721144252.96264-1-chen.dylane@gmail.com
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
authored by
Tao Chen
and committed by
Andrii Nakryiko
0d7c0612
4f88dde0
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-1
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tools/bpf/bpftool/Documentation/bpftool-net.rst
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tools/bpf/bpftool/Documentation/bpftool-net.rst
···
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| **bpftool** **net help**
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|
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| *PROG* := { **id** *PROG_ID* | **pinned** *FILE* | **tag** *PROG_TAG* | **name** *PROG_NAME* }
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| *ATTACH_TYPE* := { **xdp** | **xdpgeneric** | **xdpdrv** | **xdpoffload** }
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| *ATTACH_TYPE* := { **xdp** | **xdpgeneric** | **xdpdrv** | **xdpoffload** | **tcx_ingress** | **tcx_egress** }
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DESCRIPTION
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===========
···
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**xdpgeneric** - Generic XDP. runs at generic XDP hook when packet already enters receive path as skb;
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**xdpdrv** - Native XDP. runs earliest point in driver's receive path;
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**xdpoffload** - Offload XDP. runs directly on NIC on each packet reception;
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**tcx_ingress** - Ingress TCX. runs on ingress net traffic;
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**tcx_egress** - Egress TCX. runs on egress net traffic;
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bpftool net detach *ATTACH_TYPE* dev *NAME*
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Detach bpf program attached to network interface *NAME* with type specified
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::
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xdp:
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|
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| **# bpftool net attach tcx_ingress name tc_prog dev lo**
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| **# bpftool net**
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|
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::
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tc:
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lo(1) tcx/ingress tc_prog prog_id 29
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|
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| **# bpftool net attach tcx_ingress name tc_prog dev lo**
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| **# bpftool net detach tcx_ingress dev lo**
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| **# bpftool net**
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|
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::
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tc: