data path (travel) of tcp data from "write" syscall downto I/O registers programming

Posted by osgx on Stack Overflow See other posts from Stack Overflow or by osgx
Published on 2010-04-22T01:55:56Z Indexed on 2010/04/22 2:03 UTC
Read the original article Hit count: 253

Filed under:

linux-kernel

|

networking

|

latency

|

tcp

|

ip

Hello

Is there a good overview of tcp data path in Linux (2.6, not 2.4 if the path actually differ)? Where is a packet on different stages of tcp/ip stack handling?

How packet is packed to tcp segment, then ip packet. How it is transmitted to network card? (with series of I/O regs write and DMA?) Is it transmitted to network card in the "write" syscall handler (with some deep callstack) or is it transmitted at some other moment?

© Stack Overflow or respective owner

Related posts about linux-kernel

Out of disk space - /boot at 100%

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
My /boot is at 100%. When I run aptitude search ~ilinux-image I'm getting loads of unused images. When I try to delete one of them (after checking which one is currently in use by doing uname -r), e.g apt-get autoremove linux-image-3.2.0-44-generic I get: Reading package lists... Done Building dependency… >>> More
Linux Kernel Threads - scheduler

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi People, Is Linux Kernel scheduler a part of init process? My understanding is that it is part of Kernel threads managed internally not visible to user by either top or ps. Please correct my understanding. Is it possible to view standard kernel threads through any kernel debugger to see how standard… >>> More
Linux kernel scheduling

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, I wish to know how Old Linux scheduling algorithm SJF (shortest job first) calculates the process runtime ? >>> More
The newbie's guide to hacking the Linux kernel

as seen on Internet.com - Search for 'Internet.com'
<b>TuxRadar: </b>"We asked prolific kernel hacker (and Linux Format reader!) Greg Kroah-Hartman to tell us what it takes for newbies to patch the Linux kernel - here's what he had to say." >>> More
Google open source guru says Android code will be in Linux kernel in time

as seen on Internet.com - Search for 'Internet.com'
<b>ZDNet:</b> "Google’s Android code will assume its rightful place in the Linux kernel — in good time, the company’s top open source guru says." >>> More

Related posts about networking

Networking stopped working on Ubuntu

as seen on Super User - Search for 'Super User'
I installed Ubuntu 10.04 through the Wubi installer (Funny, I installed it today and thought I would have gotten 10.10). I had a network connection and everything was working fine. I rebooted my coumputer a couple of times and then suddenly, I could not connect to the network and when I click the… >>> More
Troubles with start up defenition of networking service in Ubuntu

as seen on Super User - Search for 'Super User'
I use Ubuntu 12.04.1. I put attention that networking script starting in runlevel 0: user@comp:/etc/rc0.d$ chkconfig -l networking networking 0:on 1:off 2:off 3:off 4:off 5:off 6:off When I try to move it working to appropriate run levels I get error: user@comp:/etc/rc0… >>> More
Installing the Elgg Social Networking CMS

as seen on Internet.com - Search for 'Internet.com'
One Open Source CMS that stands out above the rest for small businesses and personal networks is the Elgg open source "social engine," which can be used to create social applications. Scott Clark shows you how to install and get started with this social networking CMS. >>> More
OAuth: Token-Based Authorization for the Social Networking Age

as seen on Internet.com - Search for 'Internet.com'
The OAuth token-based authorization system allows users to grant third-party access to their resources without sharing their usernames and passwords. It's perfect for the age of data scattered across many social networking sites. >>> More
OAuth: Token-Based Authorization for the Social Networking Age

as seen on Internet.com - Search for 'Internet.com'
The OAuth token-based authorization system allows users to grant third-party access to their resources without sharing their usernames and passwords. It's perfect for the age of data scattered across many social networking sites. >>> More