Date Huang tjjh89017

Intro Docs

DPU-Based Hardware Acceleration: A Software Perspective

Setup

BlueField-2 Quickstart Guide for Clemson R7525s
NVIDIA Mellanox Bluefield-2 SmartNIC Hands-On Tutorial: Host setup is little outdate. See Host setup bellow.
NVIDIA Mellanox Bluefield-2 SmartNIC Hands-On Tutorial: “Rig for Dive” — Part III: Ultimate Cloudlab Setup
NVIDIA Mellanox Bluefield-2 SmartNIC Hands-On Tutorial: “Rig for Dive” — Part V: Install the Latest Bluefield OS with DPDK and DOCA

Networking scenarios [Linux Only]

KIND runs Kubernetes cluster in Docker, and leverages Docker networking for all the network features: port mapping, IPv6, containers connectivity, etc.

Docker Networking

KIND uses a docker user defined network.

It creates a bridge named kind

This uses Linux kernel dyamic debug features

https://www.kernel.org/doc/html/latest/admin-guide/dynamic-debug-howto.html

This asumes that debugfs is mounted under /sys/kernel/debug

Enable WireGuard debug

echo 'module wireguard +p' | sudo tee /sys/kernel/debug/dynamic_debug/control

alt + command + p + r + power

sudo pmset -a hibernatemode 0 standby 0 autopoweroff 0

Default:

sudo pmset restoredefaults
pmset -g

Debugging curtin from within MAAS

Deploying a node with MAAS cli

You can deploy a node with the maas cli which is often preferable to clicking a button on a web UI.

$ SYSTEM_ID=node-787b19d8-d25c-11e4-9f9e-00163eca91de
$ NAME="random-nodename"
$ MAASNAME="maaslocal"

$ maas $MAASNAME machine allocate "name=$NAME"

EdgeOS: Scheduled PPPoE reconnect configuration

It will restart the PPPoE connection every day at 7a.m

The benefit to using the task-scheduler is that your commands get saved in config folder which ensures that they get copied over during firmware upgrades.

Creating the script file

cd /config/user-data && sudo mkdir scripts && sudo chown root scripts && cd scripts

	# Full instructions: http://manpages.ubuntu.com/manpages/bionic/en/man8/mmcli.8.html
	# Examples: http://manpages.ubuntu.com/manpages/bionic/en/man8/mmcli.8.html#examples
	# Supported modems: https://www.freedesktop.org/wiki/Software/ModemManager/SupportedDevices/

	# Get list of connected modems.
	mmcli --list-modems
	# Output:
	# Found 1 modems:
	# /org/freedesktop/ModemManager1/Modem/1 [huawei] E3531
	# The number at the end of the path is the modem index.

	#include <stdio.h>
	#include <string.h>
	#ifdef ofst
	for i in range(12):
	MID, ofst, _ = 12, lambda o, i: int(o[i], 16), """
	#else
	#define ofst(o, i) 0
	int main () { int t; char s, _; for (int i = 0; i < 12; i++) {
	s = " """;
	t = (int)(9+(i%3+(int)(i/3))2-(i>8)(2*(i-8)+2)) + ofst("466975754C32", i);

	const switches = [74, 84, 85, 182, 183, 184, 185, 209, 331, 333, 361, 414, 452, 563]

	setInterval(Game.ClickCookie) // keep clicking the big cookie

	setInterval(() => {
	// cast Force the Hand of Fate when magic is almost full
	let grimoire = Game.ObjectsById[7].minigame
	if (grimoire.magic / grimoire.magicM > 0.95)
	grimoire.castSpell(grimoire.spellsById[1])

	# Install dependencies that nginx was originally compiled with
	sudo apt install libperl-dev libgeoip-dev libgd-dev

	# Get the nginx source
	wget https://nginx.org/download/nginx-1.14.0.tar.gz
	tar zxf nginx-1.14.0.tar.gz

	# Get the module source
	wget https://github.com/fdintino/nginx-upload-module/archive/master.zip
	unzip master.zip