Josef Karthauser wrote:
> Do we have soft interrupts?
Yes. The easiest one to use is NETISR. Software interrupts
are called from reenabling hardware interrupts. See _doreti
in /sys/i386/isa/ipl.s
static void
ipintr(void)
{
...
}
void
ip_init()
{
...
register_netisr(NETISR_IP, ipintr);
}
See net/netisr.h for a place to pick a number that isn't used (i.e. do
not step on NETISR_IP or some other place it's called).
Note that the index is limited to 0..31, since there is a hard coded
limit of 32 entries on the netisrs array.
It's almost even appropriate to treat USB as a network stack...
-- Terry
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