OK, I'm back from vacation today. Anyway I don't have a definitive statement on this right now. I guess I agree that I don't like having an extra parameter to a function that should be pretty fast (although req notify isn't quite as hot as something like posting a send request or polling a cq), given that it adds measurable overhead. (And I am surprised that the overhead is measurable, since 3 arguments still fit in registers, but OK).
I also agree that adding an extra entry point just to pass in the user data is ugly, and also racy. Giving the kernel driver a pointer it can read seems OK I guess, although it's a little ugly to have a backdoor channel like that. I'm somewhat surprised the driver has to go into the kernel to rearm a CQ -- what makes the operation need kernel privileges? (Sorry for not reading the code) - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html