On Wed, Oct 11, 2006 at 07:41:46PM +0530, Jinesh K J wrote: > You are right. I want to do the entire stuff in user space. So, let me > add one more requirement. I need to get the packets from the NIC, move > them to some other device memory (which can do its own processing upon > it) and get it back from there. The data thus received will be given > to userspace. The case with transmission also remains the same. What device memory? What are you trying to do? Why dont u draw an ASCII block diagram so things get clarified in ur mind as well for everyone else in the list? > > The other thing is that I won't be moving the data again to the > network stack. Any kind of processing would be done in userspace. > Since, I do not have anything to do in network stack, that overhead > can be avoided right? No, you are wrong. Network stack is not some kind of entity which you have to avoid. :-) If you mean processing overhead, then you may save something,not much. Most strategies employed for optimisation often end up introducing bugs or making things worse. I suggest you go back to the drawing board, figure out what exactly you want to do, compare alternatives and stuff. I would suggest directly accessing packets thro' DMA if that is possible. Best, Girish -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
