bpf-examples

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Implement inverse square in codel_impl.h without table lookup

1

The [traffic-pacing-edt/codel_impl.h](https://github.com/xdp-project/bpf-examples/blob/master/traffic-pacing-edt/codel_impl.h) code implements a table lookup for the inverse square root. - as mentioned in PR #60 As Kathleen Nichols ( @kmnichols ) [point out](http://pollere.net/CoDelnotes.html) there's no need for...

netoptimizer

Could you please explain the purpose and usage of traffic-pacing-edt?

7

Additionally, I am having difficulty compiling these examples and encountering various errors.

garenchan

[help] AF_XDP-forwarding don't forward packet.(tcpdump capture nothing)

5

HI all: My env is centos 7. core is 5.15.46 (build by myself) gcc 11.2.1 clang 14.0.6 llvm 14.0.6 bpftool is v5.15.46 I do as following: 1: git clone https://github.com/xdp-project/bpf-examples.git...

xjj210130

Sharing UMEM with two netdevs and creating multiple sockets for a single queue (for a netdev)

4

Hi, I have a use case where packet forwarding is done between veth and NIC. I have two sockets. One for the veth queue and one for the NIC queue...

arukshani

AF_XDP-forwarding test case fails

5

I am working through the bpf-examples, and for me the AF_XDP-forwarding test case fails . I have a fresh clone of xdp-project/bpf-examples and have just run the `configure` script and...

tjcw

Problem with AF_XDP-example app.

1

Hi I have a simple client that sends a single packet to the AF_XDP example application (l2fwd), waits for it to return, and then sends another one in forever while...

sarsanaee

How to run AF_XDP program without root privileges?

2

I want to run a userspace program to create AF_XDP socket and receive packet through this socket, but withput "sudo" and/or sysadmin capillitia. It is possible? I tried this https://github.com/xdp-project/xdp-tools/issues/320#issuecomment-1542338789...

Baruch-Fridman

hi sir/mam, we are trying to make load balancer , we are changing the source and destination IP and MAC and doing XDP_TX. but at the server end the packet...

Parangesnehal

Question on `poll` Call Position in `port_rx_burst` Function and `sendto` Usage in `port_tx_burst` Function in `AF_XDP-forwarding/xsk_fwd.c`

1

I have a couple of questions regarding the implementation of `port_rx_burst` and `port_tx_burst` functions in the `AF_XDP-forwarding/xsk_fwd.c` file. 1. `poll` Call Position in `port_rx_burst`: In the `port_rx_burst` function, I am...

binw666

trie-free-latency: Demo showing the latency of freeing LPM_TRIE maps

2

The performance of freeing LPM_TRIE maps suffers heavily for maps with a large number of entries. Here's a little demo that measures the duration of trie_free() and allows the user...

mfleming