On Wed, Apr 25, 2001 at 10:03:41AM +0800, suxm wrote:

 > Hello, everyone.
 > 
 > I have read the book "Design and implementation of the 4.4 BSD".
 > So I know the packet dataflow is as follows:
 > 
 > device interrupt---> protocol input queue--->software interrupt---> ip_input( )

device interrupt -> protocol input queue -> software interrupt ->
    ip_input -> fr_check (via PFIL_HOOKS)

That is the code path in NetBSD.

-- 
        -- Jason R. Thorpe <thorpej@zembu.com>