Smart NIC Cards
thelinuxchannel NIC Cards (Network Interface Cards) traditionally contain controller chip which takes care of the core aspects, such as packet reception, buffering (till they are read by OS device drivers), etc.…
network programming
Layer-2 (L2) Multicast Frame Deep Analysis
When you learn networking and network software programming, you learn various aspects of networking. Along with datacom concepts such as network switches, routers and so on. As you learn Ethernet…
Linux Kernel Programming – File Operations or FOPs – struct file_operations
Whenever you do Linux Kernel programming, you must've noticed file operations are defined with respect to certain data-structures. Its quite common you may find these in Linux Device Drivers and…
PiPG – Dedicated Raspberry Pi Network Console Port
You can optionally have a dedicated Network Console port for your Raspberry Pi PiPG device. So that you can remotely access the PiPG web UI and configure the same, while…
PiPG – PiPG-v1.0.26-02-Nov-2020 – Release
Download the PiPG - PiPG-v1.0.26-02-Nov-2020 - complete MicroSD Image
Linux Kernel Programming | TUN/TAP Driver Source-code | ioctl handlers | #kernel #programming
I was doing a general code walk of Tun/Tap drivers in /drivers/net/tun.c and /drivers/net/tap.c, which is when I stumbled across its ioctl handlers/implementation and then started comparing with generic /net/core/dev_ioctl.c.…
IPUtils – Source Code Walk
IPUtils is a popular Linux Open-Source package which includes various utilities for Linux networking such as ping, arping, ping6 and so on.
Socket Options – Socket Programming – setsockopt(), getsockopt()
The setsockopt() function provides an application program (user-space) with the means to control socket behavior. You can use setsockopt() to allocate buffer space, control timeouts, permit socket data broadcasts and…
Linux Networking Stack – RFS – Receive Flow Steering
Linux Networking Stack Receive Flow Steering (RFS) aim is to increase data-cache hitrate by steering kernel processing of packets to the CPU where the application thread consuming the packet is…
Multi-Client TCP Server with pthreads Mutex Synchronized – Code-walk of viewer code – Sekhar Pariga
Here is a code-walk of a git-hub source submitted by a viewer Sekhar Pariga, which is a Multi-client TCP Server with pthreads Mutex synchronized. Basically it is a Directory Listing…