Commit 0d7c0612 authored by Tao Chen's avatar Tao Chen Committed by Andrii Nakryiko
Browse files

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: default avatarTao Chen <chen.dylane@gmail.com>
Signed-off-by: default avatarDaniel Borkmann <daniel@iogearbox.net>
Acked-by: default avatarQuentin Monnet <qmo@kernel.org>
Link: https://lore.kernel.org/bpf/20240721144252.96264-1-chen.dylane@gmail.com


Signed-off-by: default avatarAndrii Nakryiko <andrii@kernel.org>
parent 4f88dde0

tools/bpf/bpftool/Documentation/bpftool-net.rst

+21 −1
Original line number Diff line number Diff line
@@ -29,7 +29,7 @@ NET COMMANDS 
| **bpftool** **net help**

|

| *PROG* := { **id** *PROG_ID* | **pinned** *FILE* | **tag** *PROG_TAG* | **name** *PROG_NAME* }

| *ATTACH_TYPE* := { **xdp** | **xdpgeneric** | **xdpdrv** | **xdpoffload** }

| *ATTACH_TYPE* := { **xdp** | **xdpgeneric** | **xdpdrv** | **xdpoffload** | **tcx_ingress** | **tcx_egress** }



DESCRIPTION

===========
@@ -69,6 +69,8 @@ bpftool net attach *ATTACH_TYPE* *PROG* dev *NAME* [ overwrite ] 
    **xdpgeneric** - Generic XDP. runs at generic XDP hook when packet already enters receive path as skb;

    **xdpdrv** - Native XDP. runs earliest point in driver's receive path;

    **xdpoffload** - Offload XDP. runs directly on NIC on each packet reception;

    **tcx_ingress** - Ingress TCX. runs on ingress net traffic;

    **tcx_egress** - Egress TCX. runs on egress net traffic;



bpftool net detach *ATTACH_TYPE* dev *NAME*

    Detach bpf program attached to network interface *NAME* with type specified
@@ -178,3 +180,21 @@ EXAMPLES 
::



      xdp:



|

| **# bpftool net attach tcx_ingress name tc_prog dev lo**

| **# bpftool net**

|



::

      tc:

      lo(1) tcx/ingress tc_prog prog_id 29



|

| **# bpftool net attach tcx_ingress name tc_prog dev lo**

| **# bpftool net detach tcx_ingress dev lo**

| **# bpftool net**

|



::

      tc: