tasklet....

[Raj, Ashok]

Hi

I just started looking at the tasklet and softirq stuff in 2.3.99-pre9
sources. Could someone send me a very quick explanation of what this is? iam
thinking its the more performant bottom_half implementation that could be
scheduled on multiple cpu's correct?

for hardware that generates interrupt, the earlier model  i used to use the
IMMEDIATE_BH and queue to that for all processing needs after servicing
interrupt for more detailed processing. with new code, should that change
with new tasklet and if could someone point me at a location to look in
sources for the right usage?

same with soft_irq, i see new stuff for network, the NET_BH seems gone and
there is one for receive and one for transmit in the softirq... how
different is this and could we define and use new softirqs?

thanks for anyone in advance for any help in understanding this.

ashokr