Hi Michael, 2009/9/4 Michael Blizek <michi1@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx>: >> >> 3.program nicard's register >> > >> > My guess without knowing or having looked at the driver is that it might >> > tell the device to stop sending interrupts. Instead the device may be polled >> > if there is work to do. This reduces the load if the device would otherwise >> > send lots of interrupts. >> > >> >> Do you mix up poll_controller in netconsole and poll in NAPI? > > Huh? > > I do not really know what you mean by this question. I have not looked at I have ask someone the same question, he mix up poll in netconsole and NAPI. "reduces the load" reminds me this. > the driver, but an interrupt register in a device sounds like interrupt > mitigation or something like this (e.g. not turning off the interrupts on > the local CPU). > > -Michi > -- I still can't understand why need disable irq in all drivers ndo_poll_controller implementation? and Is all the three method equivalent? Thanks, Jisheng -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ
