On 2011-09-27 14:01, Richard Cochran wrote: > Again, every MAC driver needs to be tastefully and wisely adapted. I > don't necessarily need to avoid coalescing. The goal (for me) is *not* > to provide deterministic Ethernet performance. Instead the RT packets > should just be delivered ASAP.
This is obviously the point I completely missed. And it makes the whole thing fairly uninteresting IMHO. If you want to do Ethercat, PowerLink or Profinet (RT), you do need a certain level of determinism along the *whole* packet path. And for the latter two, you definitely need RT IRQ support, Ethercat can be OK to poll in fast setups. >From that POV, your approach is likely OK. But I doubt its of generic use, specifically for industrial RT Ethernet. Jan PS: You do have a stack, even if you don't like it: driver, packet layer, application. :) -- Siemens AG, Corporate Technology, CT T DE IT 1 Corporate Competence Center Embedded Linux _______________________________________________ Xenomai-core mailing list Xenomai-core@gna.org https://mail.gna.org/listinfo/xenomai-core
