splnet() and such

[Nick Nauwelaerts <nick@nauwelaerts.net>]

Hello,
I was going over some network drivers (sf, xe, dc, fxp & xl) this week
and saw that most of them used splimp() instead of splnet(). Is there
any reason why splimp() is used instead of splnet()? I've seen in the
i386/intr.h file that splimp is a macro for splvm(), but haven't found
the actual source (.c or .s files) of either function.

Also, man splimp gives the spl manpage, but splimp is not mentioned
there.

Thanks.

// nick