On 10/17/07, Beyers Cronje <[EMAIL PROTECTED]> wrote: > > Hi Kurtis > > I'm running in user-level as my application is only a proof of concept, > > and > > I've been unable to get insmod to load the kernel module correctly. > > > You should always use 'click-install' to install the click kernel module > and not insmod/modprobe. Follow the INSTALL file and you will get the kernel > module working. >
I'm using click-install as per the install file, but it's not working. I'm guessing it's that my kernel is a gentoo distro one. It compiled without error, but the module loading is kicking out. With this as my intuition, I could get a plain kernel and try it out, but since you say there's little difference, it's probably not worth my time. Is there a default configuration for a simple IP router? There is a perl > > script which generates an IP click config file, but it's seemingly for > > kernel mode only. I suppose I could modify it, but what i'm looking for > > now > > is a known working case to help me understand what's going on. I can't > > seem > > to find a default config for user space IP routing. > > > From the 'make-ip-conf.pl' file: > " > # Make a Click IP router configuration. This script generates a > # configuration using PollDevices. You can change it to use > # FromDevices; see the comment above the $ifs array, below. The > # output is intended for the Linux kernel module; however, by making > # the change from PollDevices to FromDevices, and setting $local_host > # appropriately, the configuration will also work at userlevel. > " > > So all you need to do to get a working userlevel config is to change the > second column of the $ifs array to 0 and set the $local_host to something > like "Print(toh) -> Discard", and whoalla you have a working userlevel IP > router config. Obviously you have to also edit the $ifs array entries to > suit your router. > Ah! Thanks! I noticed the "no poll devices" error message when trying to use this script, so I switched those. I should have read the file more in depth. Secondly, what are my losses for running in user mode? I had assumed the > > main loss would be efficiency, but some elements seem to require kernel > > mode. Is this set in stone, or simply the default behavior? > > > Your main loss will be performance and NOT functionality. Also SMP click > is only supported in the kernel module. > > I would say MOST features are available across both userlevel Click and > kernel module Click. > There are some kernel only and userlevel only elements that provide the > same "feature" in both modes i.e. there's a kernel FromDevice element as > well as a userlevel FromDevice element. > Then obviously there are some elements that will only be available in > userlevel, typically elements that require floating point operation or file > access that is not supported in the kernel ie FromDump, and some only > available in kernel module i.e. PollDevice that require kernel level > access to devices etc. > > If you have a look at http://read.cs.ucla.edu/click/elements you'll see > that the vast majority of features is provided across both modes. > Nice, so the "drivers" column is the level it can be used at. This will help me a lot. Thanks. Hope this helps. > It did, thanks a ton! Beyers Cronje > > _______________________________________________ click mailing list [email protected] https://amsterdam.lcs.mit.edu/mailman/listinfo/click
