we can run LCP and subsequent PPP negotiation.
- suppress too noisy printf() for about AIS event (if you remove the cable,
it will bark forever).
- sppp_dequeue() can return NULL even when sppp_isempty() is false, so check
it and do not deref NULL pointer.
- sppp_flush() on LMC interface shutdown.
- prepare to change BPF type on the fly (bpf_change_type).
change DLT type to cisco HDLC, as lmc driver is hardwired to cisco HDLC
on driver attach. XXX we may need to revisit this, as if_spppsubr may want
to alter this later.
pci_attach_args *" instead of from four separate parameters which in
all cases were extracted from the same "struct pci_attach_args".
This both simplifies the driver api, and allows for alternate PCI
interrupt mapping schemes, such as one using the tables described in
the Intel Multiprocessor Spec which describe interrupt wirings for
devices behind pci-pci bridges based on the device's location rather
the bridge's location.
Tested on alpha and i386; welcome to 1.5Q
<vm/pglist.h> -> <uvm/uvm_pglist.h>
<vm/vm_inherit.h> -> <uvm/uvm_inherit.h>
<vm/vm_kern.h> -> into <uvm/uvm_extern.h>
<vm/vm_object.h> -> nothing
<vm/vm_pager.h> -> into <uvm/uvm_pager.h>
also includes a bunch of <vm/vm_page.h> include removals (due to redudancy
with <vm/vm.h>), and a scattering of other similar headers.
