[Click] How works Polling??

[Eddie Kohler]

Hi Alessandro,

> I would ask you this... How works polling in Click architecture? (I have e1000
> Intel cards). If CPU is scheduling ToDevice element, can PollDevice (and polling
> system in general) take the control? Or ToDevice can transfer almost BURST(16)
> packets before pass the token at PollDevice? In other words... input of BURST(8)
> packets and output of BURST(16) packets are sequential or not? 

They are sequential. Click tasks, including device polling, are not
preemptible.

Eddie