What ipl should be used when using IF_ENQUEUE or IFQ_ENQUEUE on
ifnet.if_snd queues? The 4.4BSD book says splimp() and the comments
in /sys/net/if.h say splimp(). Since splimp() has been removed
I'm guessing splsoftnet() or splnet() are required. Which is it?

What's the difference between splsoftnet() and splnet()?

Why was splimp() used before?

Thanks.
-- 
Kevin P. Neal                                http://www.pobox.com/~kpn/

"It sounded pretty good, but it's hard to tell how it will work out
in practice." -- Dennis Ritchie, ~1977, "Summary of a DEC 32-bit machine"