[PATCH] Fix si(4) to use bus_space

This patch fixes the si(4) driver to use the bus_space methods to access 
memory and I/O resources instead of directly calling inb()/outb() and using 
rman_get_virtual().  The patch is against HEAD but probably applies to 9 and 
10 as well.

http://people.freebsd.org/~jhb/patches/si_bus_space.patch

-- 
John Baldwin