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docs: fix XDP stub compile command

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LinuxDev9002
2026-07-14 03:59:52 -07:00
parent 3a722c03d5
commit 9c6d32c657
2 changed files with 5 additions and 3 deletions
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2
src/42-xdp-loadbalancer/README.md
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@@ -450,7 +450,7 @@ To run the XDP load balancer, execute the following command, specifying the inte
To make XDP work with veth interfaces we need to add a stub eBPF program to the other end of the pair.
```console
clang -target bpf -o stub.bpf.o -c stub.bpf.c
clang -target bpf -I/usr/include/$(uname -m)-linux-gnu -o stub.bpf.o -c stub.bpf.c
sudo ip l set dev veth7 xdp obj ./stub.bpf.o sec .xdp # stub XDP_PASS on the receiving interface
sudo ip netns exec lb ./xdp_lb veth6 10.0.0.2 de:ad:be:ef:00:02 10.0.0.3 de:ad:be:ef:00:03
```

6
src/42-xdp-loadbalancer/README.zh.md
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@@ -446,9 +446,11 @@ sudo ./teardown.sh
### 运行负载均衡器
要运行 XDP 负载均衡器，执行以下命令，指定接口和后端服务器的 IP 和 MAC 地址：
要运行 XDP 负载均衡器，执行以下命令，指定接口和后端服务器的 IP 和 MAC 地址。为了让 XDP 在 veth 接口上工作，还需要在 veth 对的另一端挂载一个返回 `XDP_PASS` 的桩程序。
```console
clang -target bpf -I/usr/include/$(uname -m)-linux-gnu -o stub.bpf.o -c stub.bpf.c
sudo ip l set dev veth7 xdp obj ./stub.bpf.o sec .xdp
sudo ip netns exec lb ./xdp_lb veth6 10.0.0.2 de:ad:be:ef:00:02 10.0.0.3 de:ad:be:ef:00:03
```
@@ -556,4 +558,4 @@ sudo bpftrace -e 'tracepoint:xdp:xdp_bulk_tx{@redir_errno[-args->err] = count();
### 参考文献
- [XDP 编程实践教程](https://github.com/xdp-project/xdp-tutorial)
- [XDP 编程实践教程](https://github.com/xdp-project/xdp-tutorial)