A stupid question about interrupt

["hzeng" <hzeng@hf.tvia.com>]

Hi,

    Maybe the question I ask is too stupid. But please excuse me to waste your time.
    When I read the kernel , I wonder what is the way the interrupt passed by. For example
when a ethernet card emit a interrupt, the irq request is send from the net card to the IPC,
and then the IPC send the interrupt to the cpu, and then the cpu answer the interrupt and send 
the ack message to IPC, and then ? What is the right way? If every interrupt must be send to the
IPC firstly?
    I am not very clearly about the process. Please cc to me, as I cannot subscribe the mail successly.

Thanks very much!
Hzeng
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