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diff --git a/tools/bpf/bpftool/Documentation/bpftool-net.rst b/tools/bpf/bpftool/Documentation/bpftool-net.rst new file mode 100644 index 000000000000..48a61837a264 --- /dev/null +++ b/tools/bpf/bpftool/Documentation/bpftool-net.rst @@ -0,0 +1,133 @@ +================ +bpftool-net +================ +------------------------------------------------------------------------------- +tool for inspection of netdev/tc related bpf prog attachments +------------------------------------------------------------------------------- + +:Manual section: 8 + +SYNOPSIS +======== + + **bpftool** [*OPTIONS*] **net** *COMMAND* + + *OPTIONS* := { [{ **-j** | **--json** }] [{ **-p** | **--pretty** }] } + + *COMMANDS* := + { **show** | **list** } [ **dev** name ] | **help** + +NET COMMANDS +============ + +| **bpftool** **net { show | list } [ dev name ]** +| **bpftool** **net help** + +DESCRIPTION +=========== + **bpftool net { show | list } [ dev name ]** + List all networking device driver and tc attachment in the system. + + Output will start with all xdp program attachment, followed by + all tc class/qdisc bpf program attachments. Both xdp programs and + tc programs are ordered based on ifindex number. If multiple bpf + programs attached to the same networking device through **tc filter**, + the order will be first all bpf programs attached to tc classes, then + all bpf programs attached to non clsact qdiscs, and finally all + bpf programs attached to root and clsact qdisc. + + **bpftool net help** + Print short help message. + +OPTIONS +======= + -h, --help + Print short generic help message (similar to **bpftool help**). + + -v, --version + Print version number (similar to **bpftool version**). + + -j, --json + Generate JSON output. For commands that cannot produce JSON, this + option has no effect. + + -p, --pretty + Generate human-readable JSON output. Implies **-j**. + +EXAMPLES +======== + +| **# bpftool net** + +:: + + xdp [ + ifindex 2 devname eth0 prog_id 198 + ] + tc_filters [ + ifindex 2 kind qdisc_htb name prefix_matcher.o:[cls_prefix_matcher_htb] + prog_id 111727 tag d08fe3b4319bc2fd act [] + ifindex 2 kind qdisc_clsact_ingress name fbflow_icmp + prog_id 130246 tag 3f265c7f26db62c9 act [] + ifindex 2 kind qdisc_clsact_egress name prefix_matcher.o:[cls_prefix_matcher_clsact] + prog_id 111726 tag 99a197826974c876 + ifindex 2 kind qdisc_clsact_egress name cls_fg_dscp + prog_id 108619 tag dc4630674fd72dcc act [] + ifindex 2 kind qdisc_clsact_egress name fbflow_egress + prog_id 130245 tag 72d2d830d6888d2c + ] + +| +| **# bpftool -jp net** + +:: + + [{ + "xdp": [{ + "ifindex": 2, + "devname": "eth0", + "prog_id": 198 + } + ], + "tc_filters": [{ + "ifindex": 2, + "kind": "qdisc_htb", + "name": "prefix_matcher.o:[cls_prefix_matcher_htb]", + "prog_id": 111727, + "tag": "d08fe3b4319bc2fd", + "act": [] + },{ + "ifindex": 2, + "kind": "qdisc_clsact_ingress", + "name": "fbflow_icmp", + "prog_id": 130246, + "tag": "3f265c7f26db62c9", + "act": [] + },{ + "ifindex": 2, + "kind": "qdisc_clsact_egress", + "name": "prefix_matcher.o:[cls_prefix_matcher_clsact]", + "prog_id": 111726, + "tag": "99a197826974c876" + },{ + "ifindex": 2, + "kind": "qdisc_clsact_egress", + "name": "cls_fg_dscp", + "prog_id": 108619, + "tag": "dc4630674fd72dcc", + "act": [] + },{ + "ifindex": 2, + "kind": "qdisc_clsact_egress", + "name": "fbflow_egress", + "prog_id": 130245, + "tag": "72d2d830d6888d2c" + } + ] + } + ] + + +SEE ALSO +======== + **bpftool**\ (8), **bpftool-prog**\ (8), **bpftool-map**\ (8) |